From 627ad9fd0733f0a31a266ff98a4a933eee710f0b Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Sat, 20 Jun 2009 23:21:41 -0400 Subject: ext4: Fix type warning on 64-bit platforms in tracing events header Signed-off-by: "Theodore Ts'o" --- include/trace/events/ext4.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h index acf4cc9cd36..b456fb0a3c5 100644 --- a/include/trace/events/ext4.h +++ b/include/trace/events/ext4.h @@ -34,7 +34,8 @@ TRACE_EVENT(ext4_free_inode, TP_printk("dev %s ino %lu mode %d uid %u gid %u blocks %llu", jbd2_dev_to_name(__entry->dev), __entry->ino, __entry->mode, - __entry->uid, __entry->gid, __entry->blocks) + __entry->uid, __entry->gid, + (unsigned long long) __entry->blocks) ); TRACE_EVENT(ext4_request_inode, -- cgit v1.2.3 From b574480507460b8e31b8d38dd4642219fc3b9a10 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Sat, 20 Jun 2009 23:34:44 -0400 Subject: jbd2: Remove GFP_ATOMIC kmalloc from inside spinlock critical region Fix jbd2_dev_to_name(), a function used when pretty-printting jbd2 and ext4 tracepoints. Signed-off-by: "Theodore Ts'o" --- fs/jbd2/journal.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index 18bfd5dab64..7b545c3b394 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -2410,6 +2410,7 @@ const char *jbd2_dev_to_name(dev_t device) int i = hash_32(device, CACHE_SIZE_BITS); char *ret; struct block_device *bd; + static struct devname_cache *new_dev; rcu_read_lock(); if (devcache[i] && devcache[i]->device == device) { @@ -2419,20 +2420,20 @@ const char *jbd2_dev_to_name(dev_t device) } rcu_read_unlock(); + new_dev = kmalloc(sizeof(struct devname_cache), GFP_KERNEL); + if (!new_dev) + return "NODEV-ALLOCFAILURE"; /* Something non-NULL */ spin_lock(&devname_cache_lock); if (devcache[i]) { if (devcache[i]->device == device) { + kfree(new_dev); ret = devcache[i]->devname; spin_unlock(&devname_cache_lock); return ret; } call_rcu(&devcache[i]->rcu, free_devcache); } - devcache[i] = kmalloc(sizeof(struct devname_cache), GFP_KERNEL); - if (!devcache[i]) { - spin_unlock(&devname_cache_lock); - return "NODEV-ALLOCFAILURE"; /* Something non-NULL */ - } + devcache[i] = new_dev; devcache[i]->device = device; bd = bdget(device); if (bd) { -- cgit v1.2.3 From f4a01017d678fe4baecf480e79d7c4f4b7ebc772 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Sun, 5 Jul 2009 22:08:16 -0400 Subject: ext4: Fix potential reclaim deadlock when truncating partial block The ext4_block_truncate_page() function previously called grab_cache_page(), which called find_or_create_page() with the __GFP_FS flag potentially set. This could cause a deadlock if the system is low on memory and it attempts a memory reclaim, which could potentially call back into ext4. So we need to call find_or_create_page() directly, and remove the __GFP_FP flag to avoid this potential deadlock. Thanks to Roland Dreier for reporting a lockdep warning which showed this problem. [20786.363249] ================================= [20786.363257] [ INFO: inconsistent lock state ] [20786.363265] 2.6.31-2-generic #14~rbd4gitd960eea9 [20786.363270] --------------------------------- [20786.363276] inconsistent {IN-RECLAIM_FS-W} -> {RECLAIM_FS-ON-W} usage. [20786.363285] http/8397 [HC0[0]:SC0[0]:HE1:SE1] takes: [20786.363291] (jbd2_handle){+.+.?.}, at: [] jbd2_journal_start+0xdb/0x150 [20786.363314] {IN-RECLAIM_FS-W} state was registered at: [20786.363320] [] mark_irqflags+0xc6/0x1a0 [20786.363334] [] __lock_acquire+0x287/0x430 [20786.363345] [] lock_acquire+0xa5/0x150 [20786.363355] [] jbd2_journal_start+0xfa/0x150 [20786.363365] [] ext4_journal_start_sb+0x58/0x90 [20786.363377] [] ext4_delete_inode+0xc5/0x2c0 [20786.363389] [] generic_delete_inode+0xd3/0x1a0 [20786.363401] [] generic_drop_inode+0x25/0x30 [20786.363411] [] iput+0x62/0x70 [20786.363420] [] dentry_iput+0x98/0x110 [20786.363429] [] d_kill+0x50/0x80 [20786.363438] [] dput+0x95/0x180 [20786.363447] [] ecryptfs_d_release+0x2b/0x70 [20786.363459] [] d_free+0x28/0x60 [20786.363468] [] d_kill+0x68/0x80 [20786.363477] [] prune_one_dentry+0xa3/0xc0 [20786.363487] [] __shrink_dcache_sb+0x271/0x290 [20786.363497] [] prune_dcache+0x109/0x1b0 [20786.363506] [] shrink_dcache_memory+0x3f/0x50 [20786.363516] [] shrink_slab+0x12d/0x190 [20786.363527] [] balance_pgdat+0x4d7/0x640 [20786.363537] [] kswapd+0x117/0x170 [20786.363546] [] kthread+0x9e/0xb0 [20786.363558] [] child_rip+0xa/0x20 [20786.363569] [] 0xffffffffffffffff [20786.363598] irq event stamp: 15997 [20786.363603] hardirqs last enabled at (15997): [] kmem_cache_alloc+0xfd/0x1a0 [20786.363617] hardirqs last disabled at (15996): [] kmem_cache_alloc+0x61/0x1a0 [20786.363628] softirqs last enabled at (15966): [] __do_softirq+0x14a/0x220 [20786.363641] softirqs last disabled at (15861): [] call_softirq+0x1c/0x30 [20786.363651] [20786.363653] other info that might help us debug this: [20786.363660] 3 locks held by http/8397: [20786.363665] #0: (&sb->s_type->i_mutex_key#8){+.+.+.}, at: [] do_truncate+0x64/0x90 [20786.363685] #1: (&sb->s_type->i_alloc_sem_key#5){+++++.}, at: [] notify_change+0x250/0x350 [20786.363707] #2: (jbd2_handle){+.+.?.}, at: [] jbd2_journal_start+0xdb/0x150 [20786.363724] [20786.363726] stack backtrace: [20786.363734] Pid: 8397, comm: http Tainted: G C 2.6.31-2-generic #14~rbd4gitd960eea9 [20786.363741] Call Trace: [20786.363752] [] print_usage_bug+0x18c/0x1a0 [20786.363763] [] ? check_usage_backwards+0x0/0xb0 [20786.363773] [] mark_lock_irq+0xf2/0x280 [20786.363783] [] mark_lock+0x137/0x1d0 [20786.363793] [] mark_held_locks+0x6c/0xa0 [20786.363803] [] lockdep_trace_alloc+0xaf/0xe0 [20786.363813] [] __alloc_pages_nodemask+0x7c/0x180 [20786.363824] [] ? find_get_page+0x91/0xf0 [20786.363835] [] alloc_pages_current+0x87/0xd0 [20786.363845] [] __page_cache_alloc+0x67/0x70 [20786.363856] [] find_or_create_page+0x4f/0xb0 [20786.363867] [] ext4_block_truncate_page+0x3e/0x460 [20786.363876] [] ? jbd2_journal_start+0xfa/0x150 [20786.363885] [] ? jbd2_journal_start+0xdb/0x150 [20786.363895] [] ? ext4_meta_trans_blocks+0x75/0xf0 [20786.363905] [] ext4_ext_truncate+0x1bb/0x1e0 [20786.363916] [] ? unmap_mapping_range+0x75/0x290 [20786.363926] [] ext4_truncate+0x498/0x630 [20786.363938] [] ? _raw_spin_unlock+0x5e/0xb0 [20786.363947] [] ? unmap_mapping_range+0xb6/0x290 [20786.363957] [] ? trace_hardirqs_on+0xd/0x10 [20786.363966] [] ? jbd2_journal_stop+0x1f8/0x2e0 [20786.363976] [] vmtruncate+0xb0/0x110 [20786.363986] [] inode_setattr+0x35/0x170 [20786.363995] [] ext4_setattr+0x186/0x370 [20786.364005] [] notify_change+0x16b/0x350 [20786.364014] [] do_truncate+0x70/0x90 [20786.364021] [] T.657+0xeb/0x110 [20786.364021] [] sys_ftruncate+0xe/0x10 [20786.364021] [] system_call_fastpath+0x16/0x1b Reported-by: Roland Dreier Signed-off-by: "Theodore Ts'o" --- fs/ext4/inode.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 60a26f3a6f8..9760ba09275 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3583,7 +3583,8 @@ int ext4_block_truncate_page(handle_t *handle, struct page *page; int err = 0; - page = grab_cache_page(mapping, from >> PAGE_CACHE_SHIFT); + page = find_or_create_page(mapping, from >> PAGE_CACHE_SHIFT, + mapping_gfp_mask(mapping) & ~__GFP_FS); if (!page) return -EINVAL; -- cgit v1.2.3 From 089ceecc1ea4a69ed8bcc5c7c7b96ce487e26b33 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Sun, 5 Jul 2009 22:17:31 -0400 Subject: ext4: mark several more functions in mballoc.c as noinline Ted noticed a stack-deep callchain through writepages->ext4_mb_regular_allocator->ext4_mb_init_cache->submit_bh ... With all the static functions in mballoc.c, gcc helpfully inlines for us, and we get something like this: ext4_mb_regular_allocator (232 bytes stack) ext4_mb_init_cache (232 bytes stack) submit_bh (starts 464 deeper) the 2 ext4 functions here get several others inlined; by telling gcc not to inline them, we can save stack space for when we head off into submit_bh land and associated block layer callchains. The following noinlined functions are only called once, so this won't impact any other callchains: ext4_mb_regular_allocator (104) (was 232) ext4_mb_find_by_goal (56) (noinlined) ext4_mb_init_group (24) (noinlined) ext4_mb_init_cache (136) (was 232) ext4_mb_generate_buddy (88) (noinlined) ext4_mb_generate_from_pa (40) (noinlined) submit_bh ext4_mb_simple_scan_group (24) (noinlined) ext4_mb_scan_aligned (56) (noinlined) ext4_mb_complex_scan_group (40) (noinlined) ext4_mb_try_best_found (24) (noinlined) now when we head off into submit_bh() we're only 264 bytes deeper in stack than when we entered ext4_mb_regular_allocator() (vs. 464 bytes before). Every 200 bytes helps. :) Signed-off-by: Eric Sandeen Signed-off-by: "Theodore Ts'o" --- fs/ext4/mballoc.c | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 519a0a686d9..4a45efabb20 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -657,7 +657,8 @@ static void ext4_mb_mark_free_simple(struct super_block *sb, } } -static void ext4_mb_generate_buddy(struct super_block *sb, +static noinline_for_stack +void ext4_mb_generate_buddy(struct super_block *sb, void *buddy, void *bitmap, ext4_group_t group) { struct ext4_group_info *grp = ext4_get_group_info(sb, group); @@ -1480,7 +1481,8 @@ static void ext4_mb_measure_extent(struct ext4_allocation_context *ac, ext4_mb_check_limits(ac, e4b, 0); } -static int ext4_mb_try_best_found(struct ext4_allocation_context *ac, +static noinline_for_stack +int ext4_mb_try_best_found(struct ext4_allocation_context *ac, struct ext4_buddy *e4b) { struct ext4_free_extent ex = ac->ac_b_ex; @@ -1507,7 +1509,8 @@ static int ext4_mb_try_best_found(struct ext4_allocation_context *ac, return 0; } -static int ext4_mb_find_by_goal(struct ext4_allocation_context *ac, +static noinline_for_stack +int ext4_mb_find_by_goal(struct ext4_allocation_context *ac, struct ext4_buddy *e4b) { ext4_group_t group = ac->ac_g_ex.fe_group; @@ -1566,7 +1569,8 @@ static int ext4_mb_find_by_goal(struct ext4_allocation_context *ac, * The routine scans buddy structures (not bitmap!) from given order * to max order and tries to find big enough chunk to satisfy the req */ -static void ext4_mb_simple_scan_group(struct ext4_allocation_context *ac, +static noinline_for_stack +void ext4_mb_simple_scan_group(struct ext4_allocation_context *ac, struct ext4_buddy *e4b) { struct super_block *sb = ac->ac_sb; @@ -1609,7 +1613,8 @@ static void ext4_mb_simple_scan_group(struct ext4_allocation_context *ac, * In order to optimize scanning, caller must pass number of * free blocks in the group, so the routine can know upper limit. */ -static void ext4_mb_complex_scan_group(struct ext4_allocation_context *ac, +static noinline_for_stack +void ext4_mb_complex_scan_group(struct ext4_allocation_context *ac, struct ext4_buddy *e4b) { struct super_block *sb = ac->ac_sb; @@ -1668,7 +1673,8 @@ static void ext4_mb_complex_scan_group(struct ext4_allocation_context *ac, * we try to find stripe-aligned chunks for stripe-size requests * XXX should do so at least for multiples of stripe size as well */ -static void ext4_mb_scan_aligned(struct ext4_allocation_context *ac, +static noinline_for_stack +void ext4_mb_scan_aligned(struct ext4_allocation_context *ac, struct ext4_buddy *e4b) { struct super_block *sb = ac->ac_sb; @@ -1831,7 +1837,8 @@ void ext4_mb_put_buddy_cache_lock(struct super_block *sb, } -static int ext4_mb_init_group(struct super_block *sb, ext4_group_t group) +static noinline_for_stack +int ext4_mb_init_group(struct super_block *sb, ext4_group_t group) { int ret; @@ -3457,7 +3464,8 @@ static void ext4_mb_generate_from_freelist(struct super_block *sb, void *bitmap, * used in in-core bitmap. buddy must be generated from this bitmap * Need to be called with ext4 group lock held */ -static void ext4_mb_generate_from_pa(struct super_block *sb, void *bitmap, +static noinline_for_stack +void ext4_mb_generate_from_pa(struct super_block *sb, void *bitmap, ext4_group_t group) { struct ext4_group_info *grp = ext4_get_group_info(sb, group); -- cgit v1.2.3 From 726447d803802cd0be8f62d17c4a34421781b938 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Mon, 13 Jul 2009 10:24:17 -0400 Subject: ext4: naturally align struct ext4_allocation_request As Ted noted, the ext4_allocation_request isn't well aligned. Looking at it with pahole we're wasting space on 64-bit arches: struct ext4_allocation_request { struct inode * inode; /* 0 8 */ ext4_lblk_t logical; /* 8 4 */ /* XXX 4 bytes hole, try to pack */ ext4_fsblk_t goal; /* 16 8 */ ext4_lblk_t lleft; /* 24 4 */ /* XXX 4 bytes hole, try to pack */ ext4_fsblk_t pleft; /* 32 8 */ ext4_lblk_t lright; /* 40 4 */ /* XXX 4 bytes hole, try to pack */ ext4_fsblk_t pright; /* 48 8 */ unsigned int len; /* 56 4 */ unsigned int flags; /* 60 4 */ /* --- cacheline 1 boundary (64 bytes) --- */ /* size: 64, cachelines: 1, members: 9 */ /* sum members: 52, holes: 3, sum holes: 12 */ }; Grouping 32-bit members together closes these holes and shrinks the structure by 12 bytes. which is important since ext4 can get on the hairy edge of stack overruns. Signed-off-by: Eric Sandeen Signed-off-by: "Theodore Ts'o" --- fs/ext4/ext4.h | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 0ddf7e55abe..9714db393ef 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -93,20 +93,20 @@ typedef unsigned int ext4_group_t; struct ext4_allocation_request { /* target inode for block we're allocating */ struct inode *inode; + /* how many blocks we want to allocate */ + unsigned int len; /* logical block in target inode */ ext4_lblk_t logical; - /* phys. target (a hint) */ - ext4_fsblk_t goal; /* the closest logical allocated block to the left */ ext4_lblk_t lleft; - /* phys. block for ^^^ */ - ext4_fsblk_t pleft; /* the closest logical allocated block to the right */ ext4_lblk_t lright; - /* phys. block for ^^^ */ + /* phys. target (a hint) */ + ext4_fsblk_t goal; + /* phys. block for the closest logical allocated block to the left */ + ext4_fsblk_t pleft; + /* phys. block for the closest logical allocated block to the right */ ext4_fsblk_t pright; - /* how many blocks we want to allocate */ - unsigned int len; /* flags. see above EXT4_MB_HINT_* */ unsigned int flags; }; -- cgit v1.2.3 From 3e03f9ca6a2599db1823bb0ea24e0845219a0e69 Mon Sep 17 00:00:00 2001 From: Jesper Dangaard Brouer Date: Sun, 5 Jul 2009 22:29:27 -0400 Subject: ext4: Use rcu_barrier() on module unload. The ext4 module uses rcu_call() thus it should use rcu_barrier()on module unload. The kmem cache ext4_pspace_cachep is sometimes free'ed using call_rcu() callbacks. Thus, we must wait for completion of call_rcu() before doing kmem_cache_destroy(). Signed-off-by: Jesper Dangaard Brouer Signed-off-by: "Theodore Ts'o" --- fs/ext4/mballoc.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 4a45efabb20..2fcaf286f1d 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -2909,7 +2909,11 @@ int __init init_ext4_mballoc(void) void exit_ext4_mballoc(void) { - /* XXX: synchronize_rcu(); */ + /* + * Wait for completion of call_rcu()'s on ext4_pspace_cachep + * before destroying the slab cache. + */ + rcu_barrier(); kmem_cache_destroy(ext4_pspace_cachep); kmem_cache_destroy(ext4_ac_cachep); kmem_cache_destroy(ext4_free_ext_cachep); -- cgit v1.2.3 From f91d1d04171026e56c7e343ee3cdcc801dd85cfb Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Mon, 13 Jul 2009 16:16:20 -0400 Subject: jbd2: Fix a race between checkpointing code and journal_get_write_access() The following race can happen: CPU1 CPU2 checkpointing code checks the buffer, adds it to an array for writeback do_get_write_access() ... lock_buffer() unlock_buffer() flush_batch() submits the buffer for IO __jbd2_journal_file_buffer() So a buffer under writeout is returned from do_get_write_access(). Since the filesystem code relies on the fact that journaled buffers cannot be written out, it does not take the buffer lock and so it can modify buffer while it is under writeout. That can lead to a filesystem corruption if we crash at the right moment. We fix the problem by clearing the buffer dirty bit under buffer_lock even if the buffer is on BJ_None list. Actually, we clear the dirty bit regardless the list the buffer is in and warn about the fact if the buffer is already journalled. Thanks for spotting the problem goes to dingdinghua . Reported-by: dingdinghua Signed-off-by: Jan Kara Signed-off-by: "Theodore Ts'o" --- fs/jbd2/transaction.c | 68 ++++++++++++++++++++++++++------------------------- 1 file changed, 35 insertions(+), 33 deletions(-) diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c index 494501edba6..6213ac728f3 100644 --- a/fs/jbd2/transaction.c +++ b/fs/jbd2/transaction.c @@ -499,34 +499,15 @@ void jbd2_journal_unlock_updates (journal_t *journal) wake_up(&journal->j_wait_transaction_locked); } -/* - * Report any unexpected dirty buffers which turn up. Normally those - * indicate an error, but they can occur if the user is running (say) - * tune2fs to modify the live filesystem, so we need the option of - * continuing as gracefully as possible. # - * - * The caller should already hold the journal lock and - * j_list_lock spinlock: most callers will need those anyway - * in order to probe the buffer's journaling state safely. - */ -static void jbd_unexpected_dirty_buffer(struct journal_head *jh) +static void warn_dirty_buffer(struct buffer_head *bh) { - int jlist; - - /* If this buffer is one which might reasonably be dirty - * --- ie. data, or not part of this journal --- then - * we're OK to leave it alone, but otherwise we need to - * move the dirty bit to the journal's own internal - * JBDDirty bit. */ - jlist = jh->b_jlist; + char b[BDEVNAME_SIZE]; - if (jlist == BJ_Metadata || jlist == BJ_Reserved || - jlist == BJ_Shadow || jlist == BJ_Forget) { - struct buffer_head *bh = jh2bh(jh); - - if (test_clear_buffer_dirty(bh)) - set_buffer_jbddirty(bh); - } + printk(KERN_WARNING + "JBD: Spotted dirty metadata buffer (dev = %s, blocknr = %llu). " + "There's a risk of filesystem corruption in case of system " + "crash.\n", + bdevname(bh->b_bdev, b), (unsigned long long)bh->b_blocknr); } /* @@ -593,14 +574,16 @@ repeat: if (jh->b_next_transaction) J_ASSERT_JH(jh, jh->b_next_transaction == transaction); + warn_dirty_buffer(bh); } /* * In any case we need to clean the dirty flag and we must * do it under the buffer lock to be sure we don't race * with running write-out. */ - JBUFFER_TRACE(jh, "Unexpected dirty buffer"); - jbd_unexpected_dirty_buffer(jh); + JBUFFER_TRACE(jh, "Journalling dirty buffer"); + clear_buffer_dirty(bh); + set_buffer_jbddirty(bh); } unlock_buffer(bh); @@ -843,6 +826,15 @@ int jbd2_journal_get_create_access(handle_t *handle, struct buffer_head *bh) J_ASSERT_JH(jh, buffer_locked(jh2bh(jh))); if (jh->b_transaction == NULL) { + /* + * Previous jbd2_journal_forget() could have left the buffer + * with jbddirty bit set because it was being committed. When + * the commit finished, we've filed the buffer for + * checkpointing and marked it dirty. Now we are reallocating + * the buffer so the transaction freeing it must have + * committed and so it's safe to clear the dirty bit. + */ + clear_buffer_dirty(jh2bh(jh)); jh->b_transaction = transaction; /* first access by this transaction */ @@ -1644,8 +1636,13 @@ static int __dispose_buffer(struct journal_head *jh, transaction_t *transaction) if (jh->b_cp_transaction) { JBUFFER_TRACE(jh, "on running+cp transaction"); + /* + * We don't want to write the buffer anymore, clear the + * bit so that we don't confuse checks in + * __journal_file_buffer + */ + clear_buffer_dirty(bh); __jbd2_journal_file_buffer(jh, transaction, BJ_Forget); - clear_buffer_jbddirty(bh); may_free = 0; } else { JBUFFER_TRACE(jh, "on running transaction"); @@ -1896,12 +1893,17 @@ void __jbd2_journal_file_buffer(struct journal_head *jh, if (jh->b_transaction && jh->b_jlist == jlist) return; - /* The following list of buffer states needs to be consistent - * with __jbd_unexpected_dirty_buffer()'s handling of dirty - * state. */ - if (jlist == BJ_Metadata || jlist == BJ_Reserved || jlist == BJ_Shadow || jlist == BJ_Forget) { + /* + * For metadata buffers, we track dirty bit in buffer_jbddirty + * instead of buffer_dirty. We should not see a dirty bit set + * here because we clear it in do_get_write_access but e.g. + * tune2fs can modify the sb and set the dirty bit at any time + * so we try to gracefully handle that. + */ + if (buffer_dirty(bh)) + warn_dirty_buffer(bh); if (test_clear_buffer_dirty(bh) || test_clear_buffer_jbddirty(bh)) was_dirty = 1; -- cgit v1.2.3 From ffacfa7a79d6c00624196b2d13b0a7f72f2b8227 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Mon, 13 Jul 2009 16:22:22 -0400 Subject: ext4: Fix truncation of symlinks after failed write Contents of long symlinks is written via standard write methods. So when the write fails, we add inode to orphan list. But symlinks don't have .truncate method defined so nobody properly removes them from the on disk orphan list. Fix this by calling ext4_truncate() directly instead of calling vmtruncate() (which is saner anyway since we don't need anything vmtruncate() does except from calling .truncate in these paths). We also add inode to orphan list only if ext4_can_truncate() is true (currently, it can be false for symlinks when there are no blocks allocated) - otherwise orphan list processing will complain and ext4_truncate() will not remove inode from on-disk orphan list. Signed-off-by: Jan Kara Signed-off-by: "Theodore Ts'o" --- fs/ext4/inode.c | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 9760ba09275..ff2afc1909b 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -1513,14 +1513,14 @@ retry: * Add inode to orphan list in case we crash before * truncate finishes */ - if (pos + len > inode->i_size) + if (pos + len > inode->i_size && ext4_can_truncate(inode)) ext4_orphan_add(handle, inode); ext4_journal_stop(handle); if (pos + len > inode->i_size) { - vmtruncate(inode, inode->i_size); + ext4_truncate(inode); /* - * If vmtruncate failed early the inode might + * If truncate failed early the inode might * still be on the orphan list; we need to * make sure the inode is removed from the * orphan list in that case. @@ -1614,7 +1614,7 @@ static int ext4_ordered_write_end(struct file *file, ret2 = ext4_generic_write_end(file, mapping, pos, len, copied, page, fsdata); copied = ret2; - if (pos + len > inode->i_size) + if (pos + len > inode->i_size && ext4_can_truncate(inode)) /* if we have allocated more blocks and copied * less. We will have blocks allocated outside * inode->i_size. So truncate them @@ -1628,9 +1628,9 @@ static int ext4_ordered_write_end(struct file *file, ret = ret2; if (pos + len > inode->i_size) { - vmtruncate(inode, inode->i_size); + ext4_truncate(inode); /* - * If vmtruncate failed early the inode might still be + * If truncate failed early the inode might still be * on the orphan list; we need to make sure the inode * is removed from the orphan list in that case. */ @@ -1655,7 +1655,7 @@ static int ext4_writeback_write_end(struct file *file, ret2 = ext4_generic_write_end(file, mapping, pos, len, copied, page, fsdata); copied = ret2; - if (pos + len > inode->i_size) + if (pos + len > inode->i_size && ext4_can_truncate(inode)) /* if we have allocated more blocks and copied * less. We will have blocks allocated outside * inode->i_size. So truncate them @@ -1670,9 +1670,9 @@ static int ext4_writeback_write_end(struct file *file, ret = ret2; if (pos + len > inode->i_size) { - vmtruncate(inode, inode->i_size); + ext4_truncate(inode); /* - * If vmtruncate failed early the inode might still be + * If truncate failed early the inode might still be * on the orphan list; we need to make sure the inode * is removed from the orphan list in that case. */ @@ -1722,7 +1722,7 @@ static int ext4_journalled_write_end(struct file *file, unlock_page(page); page_cache_release(page); - if (pos + len > inode->i_size) + if (pos + len > inode->i_size && ext4_can_truncate(inode)) /* if we have allocated more blocks and copied * less. We will have blocks allocated outside * inode->i_size. So truncate them @@ -1733,9 +1733,9 @@ static int ext4_journalled_write_end(struct file *file, if (!ret) ret = ret2; if (pos + len > inode->i_size) { - vmtruncate(inode, inode->i_size); + ext4_truncate(inode); /* - * If vmtruncate failed early the inode might still be + * If truncate failed early the inode might still be * on the orphan list; we need to make sure the inode * is removed from the orphan list in that case. */ @@ -2907,7 +2907,7 @@ retry: * i_size_read because we hold i_mutex. */ if (pos + len > inode->i_size) - vmtruncate(inode, inode->i_size); + ext4_truncate(inode); } if (ret == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries)) -- cgit v1.2.3 From 5887e98b609e96ce61ee0528cf94a2bfdc809dd7 Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Sun, 5 Jul 2009 23:12:04 -0400 Subject: ext4: Calculate required journal credits for inserting an extent properly When we have space in the extent tree leaf node we should be able to insert the extent with much less journal credits. The code was doing proper calculation but missed a return statement. Reported-by: Andreas Dilger Signed-off-by: Aneesh Kumar K.V Signed-off-by: "Theodore Ts'o" --- fs/ext4/extents.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 50322a09bd0..73ebfb44ad7 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -1977,6 +1977,7 @@ int ext4_ext_calc_credits_for_single_extent(struct inode *inode, int nrblocks, */ /* 1 bitmap, 1 block group descriptor */ ret = 2 + EXT4_META_TRANS_BLOCKS(inode->i_sb); + return ret; } } -- cgit v1.2.3 From 5adfee9c17314c1411095c23191c3cb0c2d25f9f Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Wed, 8 Jul 2009 17:11:24 -0400 Subject: ext4: fix no journal corruption with locale-gen If there is no journal, ext4_should_writeback_data() should return TRUE. This will fix ext4_set_aops() to set ext4_da_ops in the case of delayed allocation; otherwise ext4_journaled_aops gets used by default, which doesn't handle delayed allocation properly. The advantage of using ext4_should_writeback_data() approach is that it should handle nobh better as well. Thanks to Curt Wohlgemuth for investigating this problem, and Aneesh Kumar for suggesting this approach. Signed-off-by: "Theodore Ts'o" --- fs/ext4/ext4_jbd2.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h index be2f426f680..d574a85aca5 100644 --- a/fs/ext4/ext4_jbd2.h +++ b/fs/ext4/ext4_jbd2.h @@ -281,10 +281,10 @@ static inline int ext4_should_order_data(struct inode *inode) static inline int ext4_should_writeback_data(struct inode *inode) { - if (EXT4_JOURNAL(inode) == NULL) - return 0; if (!S_ISREG(inode->i_mode)) return 0; + if (EXT4_JOURNAL(inode) == NULL) + return 1; if (EXT4_I(inode)->i_flags & EXT4_JOURNAL_DATA_FL) return 0; if (test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_WRITEBACK_DATA) -- cgit v1.2.3 From e6462869e4fd88be5141a356ee0c28d8067340cc Mon Sep 17 00:00:00 2001 From: Johann Lombardi Date: Sun, 5 Jul 2009 23:45:11 -0400 Subject: ext4: Fix goal inum check in the inode allocator The goal inode is specificed by inode number which belongs to [1; s_inodes_count]. Signed-off-by: Johann Lombardi Signed-off-by: "Theodore Ts'o" --- fs/ext4/ialloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index 2f645732e3b..29e6dc7299b 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -833,7 +833,7 @@ struct inode *ext4_new_inode(handle_t *handle, struct inode *dir, int mode, if (!goal) goal = sbi->s_inode_goal; - if (goal && goal < le32_to_cpu(sbi->s_es->s_inodes_count)) { + if (goal && goal <= le32_to_cpu(sbi->s_es->s_inodes_count)) { group = (goal - 1) / EXT4_INODES_PER_GROUP(sb); ino = (goal - 1) % EXT4_INODES_PER_GROUP(sb); ret2 = 0; -- cgit v1.2.3 From b767e78a179e5ab30fdbff1686d074ac270471eb Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Thu, 4 Jun 2009 08:06:06 -0400 Subject: ext4: Don't look at buffer_heads outside i_size. Buffer heads outside i_size will be unmapped. So when we are doing "walk_page_buffers" limit ourself to i_size. Signed-off-by: Aneesh Kumar K.V Reviewed-by: Josef Bacik Acked-by: Jan Kara Signed-off-by: "Theodore Ts'o" ---- --- fs/ext4/inode.c | 28 ++++++++++++++++------------ 1 file changed, 16 insertions(+), 12 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index ff2afc1909b..b87b68cd324 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2578,7 +2578,7 @@ static int ext4_da_writepage(struct page *page, * all are mapped and non delay. We don't want to * do block allocation here. */ - ret = block_prepare_write(page, 0, PAGE_CACHE_SIZE, + ret = block_prepare_write(page, 0, len, noalloc_get_block_write); if (!ret) { page_bufs = page_buffers(page); @@ -2600,7 +2600,7 @@ static int ext4_da_writepage(struct page *page, return 0; } /* now mark the buffer_heads as dirty and uptodate */ - block_commit_write(page, 0, PAGE_CACHE_SIZE); + block_commit_write(page, 0, len); } if (test_opt(inode->i_sb, NOBH) && ext4_should_writeback_data(inode)) @@ -3246,6 +3246,8 @@ static int ext4_normal_writepage(struct page *page, static int __ext4_journalled_writepage(struct page *page, struct writeback_control *wbc) { + loff_t size; + unsigned int len; struct address_space *mapping = page->mapping; struct inode *inode = mapping->host; struct buffer_head *page_bufs; @@ -3253,14 +3255,17 @@ static int __ext4_journalled_writepage(struct page *page, int ret = 0; int err; - ret = block_prepare_write(page, 0, PAGE_CACHE_SIZE, - noalloc_get_block_write); + size = i_size_read(inode); + if (page->index == size >> PAGE_CACHE_SHIFT) + len = size & ~PAGE_CACHE_MASK; + else + len = PAGE_CACHE_SIZE; + ret = block_prepare_write(page, 0, len, noalloc_get_block_write); if (ret != 0) goto out_unlock; page_bufs = page_buffers(page); - walk_page_buffers(handle, page_bufs, 0, PAGE_CACHE_SIZE, NULL, - bget_one); + walk_page_buffers(handle, page_bufs, 0, len, NULL, bget_one); /* As soon as we unlock the page, it can go away, but we have * references to buffers so we are safe */ unlock_page(page); @@ -3271,19 +3276,18 @@ static int __ext4_journalled_writepage(struct page *page, goto out; } - ret = walk_page_buffers(handle, page_bufs, 0, - PAGE_CACHE_SIZE, NULL, do_journal_get_write_access); + ret = walk_page_buffers(handle, page_bufs, 0, len, NULL, + do_journal_get_write_access); - err = walk_page_buffers(handle, page_bufs, 0, - PAGE_CACHE_SIZE, NULL, write_end_fn); + err = walk_page_buffers(handle, page_bufs, 0, len, NULL, + write_end_fn); if (ret == 0) ret = err; err = ext4_journal_stop(handle); if (!ret) ret = err; - walk_page_buffers(handle, page_bufs, 0, - PAGE_CACHE_SIZE, NULL, bput_one); + walk_page_buffers(handle, page_bufs, 0, len, NULL, bput_one); EXT4_I(inode)->i_state |= EXT4_STATE_JDATA; goto out; -- cgit v1.2.3 From 8616e0fc1e27295316f9821a883f0e9fa6f8200f Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Thu, 11 Jun 2009 10:27:28 -0400 Subject: cifs: remove unneeded NULL checks from cifs_show_options show_options is always called with the namespace_sem held. Therefore we don't need to worry about the vfsmount being NULL, or it vanishing while the function is running. By the same token, there's no need to worry about the superblock, tcon, smb or tcp sessions being NULL on entry. Signed-off-by: Jeff Layton Signed-off-by: Steve French --- fs/cifs/cifsfs.c | 130 +++++++++++++++++++++++++------------------------------ 1 file changed, 59 insertions(+), 71 deletions(-) diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 0d92114195a..3f121fbd6c5 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -346,80 +346,68 @@ cifs_show_options(struct seq_file *s, struct vfsmount *m) struct TCP_Server_Info *server; cifs_sb = CIFS_SB(m->mnt_sb); + tcon = cifs_sb->tcon; - if (cifs_sb) { - tcon = cifs_sb->tcon; - if (tcon) { - seq_printf(s, ",unc=%s", cifs_sb->tcon->treeName); - if (tcon->ses) { - if (tcon->ses->userName) - seq_printf(s, ",username=%s", - tcon->ses->userName); - if (tcon->ses->domainName) - seq_printf(s, ",domain=%s", - tcon->ses->domainName); - server = tcon->ses->server; - if (server) { - seq_printf(s, ",addr="); - switch (server->addr.sockAddr6. - sin6_family) { - case AF_INET6: - seq_printf(s, "%pI6", - &server->addr.sockAddr6.sin6_addr); - break; - case AF_INET: - seq_printf(s, "%pI4", - &server->addr.sockAddr.sin_addr.s_addr); - break; - } - } - } - if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) || - !(tcon->unix_ext)) - seq_printf(s, ",uid=%d", cifs_sb->mnt_uid); - if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) || - !(tcon->unix_ext)) - seq_printf(s, ",gid=%d", cifs_sb->mnt_gid); - if (!tcon->unix_ext) { - seq_printf(s, ",file_mode=0%o,dir_mode=0%o", + seq_printf(s, ",unc=%s", cifs_sb->tcon->treeName); + if (tcon->ses->userName) + seq_printf(s, ",username=%s", tcon->ses->userName); + if (tcon->ses->domainName) + seq_printf(s, ",domain=%s", tcon->ses->domainName); + + cifs_show_address(s, tcon->ses->server); + + seq_printf(s, ",uid=%d", cifs_sb->mnt_uid); + seq_printf(s, ",gid=%d", cifs_sb->mnt_gid); + + server = tcon->ses->server; + seq_printf(s, ",addr="); + switch (server->addr.sockAddr6.sin6_family) { + case AF_INET6: + seq_printf(s, "%pI6", &server->addr.sockAddr6.sin6_addr); + break; + case AF_INET: + seq_printf(s, "%pI4", &server->addr.sockAddr.sin_addr.s_addr); + break; + } + + if (!tcon->unix_ext) + seq_printf(s, ",file_mode=0%o,dir_mode=0%o", cifs_sb->mnt_file_mode, cifs_sb->mnt_dir_mode); - } - if (tcon->seal) - seq_printf(s, ",seal"); - if (tcon->nocase) - seq_printf(s, ",nocase"); - if (tcon->retry) - seq_printf(s, ",hard"); - } - if (cifs_sb->prepath) - seq_printf(s, ",prepath=%s", cifs_sb->prepath); - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) - seq_printf(s, ",posixpaths"); - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) - seq_printf(s, ",setuids"); - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) - seq_printf(s, ",serverino"); - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) - seq_printf(s, ",directio"); - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) - seq_printf(s, ",nouser_xattr"); - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR) - seq_printf(s, ",mapchars"); - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) - seq_printf(s, ",sfu"); - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) - seq_printf(s, ",nobrl"); - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) - seq_printf(s, ",cifsacl"); - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM) - seq_printf(s, ",dynperm"); - if (m->mnt_sb->s_flags & MS_POSIXACL) - seq_printf(s, ",acl"); - - seq_printf(s, ",rsize=%d", cifs_sb->rsize); - seq_printf(s, ",wsize=%d", cifs_sb->wsize); - } + if (tcon->seal) + seq_printf(s, ",seal"); + if (tcon->nocase) + seq_printf(s, ",nocase"); + if (tcon->retry) + seq_printf(s, ",hard"); + if (cifs_sb->prepath) + seq_printf(s, ",prepath=%s", cifs_sb->prepath); + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) + seq_printf(s, ",posixpaths"); + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) + seq_printf(s, ",setuids"); + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) + seq_printf(s, ",serverino"); + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) + seq_printf(s, ",directio"); + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) + seq_printf(s, ",nouser_xattr"); + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR) + seq_printf(s, ",mapchars"); + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) + seq_printf(s, ",sfu"); + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) + seq_printf(s, ",nobrl"); + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) + seq_printf(s, ",cifsacl"); + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM) + seq_printf(s, ",dynperm"); + if (m->mnt_sb->s_flags & MS_POSIXACL) + seq_printf(s, ",acl"); + + seq_printf(s, ",rsize=%d", cifs_sb->rsize); + seq_printf(s, ",wsize=%d", cifs_sb->wsize); + return 0; } -- cgit v1.2.3 From 340481a36498bf3fe404bcecb2e2d6188e950bff Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Thu, 11 Jun 2009 10:27:29 -0400 Subject: cifs: have cifs_show_options show forceuid/forcegid options Signed-off-by: Jeff Layton Signed-off-by: Steve French --- fs/cifs/cifsfs.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 3f121fbd6c5..8b315708cb3 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -357,7 +357,12 @@ cifs_show_options(struct seq_file *s, struct vfsmount *m) cifs_show_address(s, tcon->ses->server); seq_printf(s, ",uid=%d", cifs_sb->mnt_uid); + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) + seq_printf(s, ",forceuid"); + seq_printf(s, ",gid=%d", cifs_sb->mnt_gid); + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) + seq_printf(s, ",forcegid"); server = tcon->ses->server; seq_printf(s, ",addr="); -- cgit v1.2.3 From 1e68b2b2756fc3488ecbade5ad5f13302b3aaafc Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Thu, 11 Jun 2009 10:27:30 -0400 Subject: cifs: add new routine for converting AF_INET and AF_INET6 addrs ...to consolidate some logic used in more than one place. Signed-off-by: Jeff Layton Signed-off-by: Steve French --- fs/cifs/cifsproto.h | 2 +- fs/cifs/connect.c | 21 ++++----------------- fs/cifs/dns_resolve.c | 21 +++------------------ fs/cifs/netmisc.c | 34 ++++++++++++++++++++++++++++++---- 4 files changed, 38 insertions(+), 40 deletions(-) diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index f9452329bcc..c419416a42e 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -74,7 +74,7 @@ extern unsigned int smbCalcSize(struct smb_hdr *ptr); extern unsigned int smbCalcSize_LE(struct smb_hdr *ptr); extern int decode_negTokenInit(unsigned char *security_blob, int length, enum securityEnum *secType); -extern int cifs_inet_pton(const int, const char *source, void *dst); +extern int cifs_convert_address(char *src, void *dst); extern int map_smb_to_linux_error(struct smb_hdr *smb, int logErr); extern void header_assemble(struct smb_hdr *, char /* command */ , const struct cifsTconInfo *, int /* length of diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 97f4311b9a8..c368ad65823 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1433,28 +1433,15 @@ cifs_get_tcp_session(struct smb_vol *volume_info) memset(&addr, 0, sizeof(struct sockaddr_storage)); - if (volume_info->UNCip && volume_info->UNC) { - rc = cifs_inet_pton(AF_INET, volume_info->UNCip, - &sin_server->sin_addr.s_addr); - - if (rc <= 0) { - /* not ipv4 address, try ipv6 */ - rc = cifs_inet_pton(AF_INET6, volume_info->UNCip, - &sin_server6->sin6_addr.in6_u); - if (rc > 0) - addr.ss_family = AF_INET6; - } else { - addr.ss_family = AF_INET; - } + cFYI(1, ("UNC: %s ip: %s", volume_info->UNC, volume_info->UNCip)); - if (rc <= 0) { + if (volume_info->UNCip && volume_info->UNC) { + rc = cifs_convert_address(volume_info->UNCip, &addr); + if (!rc) { /* we failed translating address */ rc = -EINVAL; goto out_err; } - - cFYI(1, ("UNC: %s ip: %s", volume_info->UNC, - volume_info->UNCip)); } else if (volume_info->UNCip) { /* BB using ip addr as tcp_ses name to connect to the DFS root below */ diff --git a/fs/cifs/dns_resolve.c b/fs/cifs/dns_resolve.c index df4a306f697..91b5500755b 100644 --- a/fs/cifs/dns_resolve.c +++ b/fs/cifs/dns_resolve.c @@ -37,24 +37,9 @@ static int is_ip(const char *name) { - int rc; - struct sockaddr_in sin_server; - struct sockaddr_in6 sin_server6; - - rc = cifs_inet_pton(AF_INET, name, - &sin_server.sin_addr.s_addr); - - if (rc <= 0) { - /* not ipv4 address, try ipv6 */ - rc = cifs_inet_pton(AF_INET6, name, - &sin_server6.sin6_addr.in6_u); - if (rc > 0) - return 1; - } else { - return 1; - } - /* we failed translating address */ - return 0; + struct sockaddr_storage ss; + + return cifs_convert_address(name, &ss); } static int diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c index 32d6baa0a54..00e6e357ae8 100644 --- a/fs/cifs/netmisc.c +++ b/fs/cifs/netmisc.c @@ -133,10 +133,12 @@ static const struct smb_to_posix_error mapping_table_ERRHRD[] = { {0, 0} }; -/* Convert string containing dotted ip address to binary form */ -/* returns 0 if invalid address */ - -int +/* + * Convert a string containing text IPv4 or IPv6 address to binary form. + * + * Returns 0 on failure. + */ +static int cifs_inet_pton(const int address_family, const char *cp, void *dst) { int ret = 0; @@ -153,6 +155,30 @@ cifs_inet_pton(const int address_family, const char *cp, void *dst) return ret; } +/* + * Try to convert a string to an IPv4 address and then attempt to convert + * it to an IPv6 address if that fails. Set the family field if either + * succeeds. + * + * Returns 0 on failure. + */ +int +cifs_convert_address(char *src, void *dst) +{ + struct sockaddr_in *s4 = (struct sockaddr_in *) dst; + struct sockaddr_in6 *s6 = (Struct sockaddr_in6 *) dst; + + if (cifs_inet_pton(AF_INET, src, &s4->sin_addr.s_addr)) { + s4->sin_family = AF_INET; + return 1; + } else if (cifs_inet_pton(AF_INET6, src, &s6->sin6_addr.s6_addr)) { + s6->sin6_family = AF_INET6; + return 1; + } + + return 0; +} + /***************************************************************************** convert a NT status code to a dos class/code *****************************************************************************/ -- cgit v1.2.3 From 3a45c9e4b192c9e96f65a8473c7a28e09cf2ac2a Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Sat, 13 Jun 2009 10:43:19 +0100 Subject: MAINTAINERS: Update file list for ARM/S3C2410 and ARM/S3C2440 Add F: entries for ARM/S3C2410 and ARM/S3C2440 to update the entries. Signed-off-by: Ben Dooks --- MAINTAINERS | 2 ++ 1 file changed, 2 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 90f81283b72..fa9377df160 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -830,6 +830,7 @@ M: ben-linux@fluff.org L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) W: http://www.fluff.org/ben/linux/ S: Maintained +F: arch/arm/mach-s3c2410/ ARM/S3C2440 ARM ARCHITECTURE P: Ben Dooks @@ -837,6 +838,7 @@ M: ben-linux@fluff.org L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) W: http://www.fluff.org/ben/linux/ S: Maintained +F: arch/arm/mach-s3c2440/ ARM/TECHNOLOGIC SYSTEMS TS7250 MACHINE SUPPORT P: Lennert Buytenhek -- cgit v1.2.3 From b21477f9d257cd8d45f7df32a9ebed45dbdfa4b5 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Sat, 13 Jun 2009 10:46:34 +0100 Subject: MAINTAINERS: Add ARM S3C2442, S3C2443, S3C6400, S3C6410 and ARM/SAMSUNG Add entries for the ARM architectures and platform support that are currently being maintained by myself. Signed-off-by: Ben Dooks --- MAINTAINERS | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index fa9377df160..293cba0dc12 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -824,6 +824,15 @@ M: alex@shark-linux.de W: http://www.shark-linux.de/shark.html S: Maintained +ARM/SAMSUNG ARM ARCHITECTURES +P: Ben Dooks +M: ben-linux@fluff.org +L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) +W: http://www.fluff.org/ben/linux/ +S: Maintained +F: arch/arm/plat-s3c/ +F: arch/arm/plat-s3c24xx/ + ARM/S3C2410 ARM ARCHITECTURE P: Ben Dooks M: ben-linux@fluff.org @@ -840,6 +849,38 @@ W: http://www.fluff.org/ben/linux/ S: Maintained F: arch/arm/mach-s3c2440/ +ARM/S3C2442 ARM ARCHITECTURE +P: Ben Dooks +M: ben-linux@fluff.org +L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) +W: http://www.fluff.org/ben/linux/ +S: Maintained +F: arch/arm/mach-s3c2442/ + +ARM/S3C2443 ARM ARCHITECTURE +P: Ben Dooks +M: ben-linux@fluff.org +L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) +W: http://www.fluff.org/ben/linux/ +S: Maintained +F: arch/arm/mach-s3c2443/ + +ARM/S3C6400 ARM ARCHITECTURE +P: Ben Dooks +M: ben-linux@fluff.org +L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) +W: http://www.fluff.org/ben/linux/ +S: Maintained +F: arch/arm/mach-s3c6400/ + +ARM/S3C6410 ARM ARCHITECTURE +P: Ben Dooks +M: ben-linux@fluff.org +L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) +W: http://www.fluff.org/ben/linux/ +S: Maintained +F: arch/arm/mach-s3c6410/ + ARM/TECHNOLOGIC SYSTEMS TS7250 MACHINE SUPPORT P: Lennert Buytenhek M: kernel@wantstofly.org -- cgit v1.2.3 From c364b22c9580a885e0f8c0d0f9710d67dc448958 Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Sun, 14 Jun 2009 17:57:10 -0400 Subject: ext4: Fix mmap/truncate race when blocksize < pagesize && delayed allocation It is possible to see buffer_heads which are not mapped in the writepage callback in the following scneario (where the fs blocksize is 1k and the page size is 4k): 1) truncate(f, 1024) 2) mmap(f, 0, 4096) 3) a[0] = 'a' 4) truncate(f, 4096) 5) writepage(...) Now if we get a writepage callback immediately after (4) and before an attempt to write at any other offset via mmap address (which implies we are yet to get a pagefault and do a get_block) what we would have is the page which is dirty have first block allocated and the other three buffer_heads unmapped. In the above case the writepage should go ahead and try to write the first blocks and clear the page_dirty flag. Further attempts to write to the page will again create a fault and result in allocating blocks and marking page dirty. If we don't write any other offset via mmap address we would still have written the first block to the disk and rest of the space will be considered as a hole. So to address this, we change all of the places where we look for delayed, unmapped, or unwritten buffer heads, and only check for delayed or unwritten buffer heads instead. Signed-off-by: Aneesh Kumar K.V Acked-by: Jan Kara Signed-off-by: "Theodore Ts'o" --- fs/ext4/inode.c | 23 ++++++++--------------- 1 file changed, 8 insertions(+), 15 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index b87b68cd324..1275f34589c 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2305,15 +2305,9 @@ flush_it: return; } -static int ext4_bh_unmapped_or_delay(handle_t *handle, struct buffer_head *bh) +static int ext4_bh_delay_or_unwritten(handle_t *handle, struct buffer_head *bh) { - /* - * unmapped buffer is possible for holes. - * delay buffer is possible with delayed allocation. - * We also need to consider unwritten buffer as unmapped. - */ - return (!buffer_mapped(bh) || buffer_delay(bh) || - buffer_unwritten(bh)) && buffer_dirty(bh); + return (buffer_delay(bh) || buffer_unwritten(bh)) && buffer_dirty(bh); } /* @@ -2400,7 +2394,7 @@ static int __mpage_da_writepage(struct page *page, * Otherwise we won't make progress * with the page in ext4_da_writepage */ - if (ext4_bh_unmapped_or_delay(NULL, bh)) { + if (ext4_bh_delay_or_unwritten(NULL, bh)) { mpage_add_bh_to_extent(mpd, logical, bh->b_size, bh->b_state); @@ -2517,7 +2511,6 @@ static int noalloc_get_block_write(struct inode *inode, sector_t iblock, * so call get_block_wrap with create = 0 */ ret = ext4_get_blocks(NULL, inode, iblock, max_blocks, bh_result, 0); - BUG_ON(create && ret == 0); if (ret > 0) { bh_result->b_size = (ret << inode->i_blkbits); ret = 0; @@ -2533,7 +2526,7 @@ static int noalloc_get_block_write(struct inode *inode, sector_t iblock, * - grab_page_cache when doing write_begin (have journal handle) */ static int ext4_da_writepage(struct page *page, - struct writeback_control *wbc) + struct writeback_control *wbc) { int ret = 0; loff_t size; @@ -2551,7 +2544,7 @@ static int ext4_da_writepage(struct page *page, if (page_has_buffers(page)) { page_bufs = page_buffers(page); if (walk_page_buffers(NULL, page_bufs, 0, len, NULL, - ext4_bh_unmapped_or_delay)) { + ext4_bh_delay_or_unwritten)) { /* * We don't want to do block allocation * So redirty the page and return @@ -2584,7 +2577,7 @@ static int ext4_da_writepage(struct page *page, page_bufs = page_buffers(page); /* check whether all are mapped and non delay */ if (walk_page_buffers(NULL, page_bufs, 0, len, NULL, - ext4_bh_unmapped_or_delay)) { + ext4_bh_delay_or_unwritten)) { redirty_page_for_writepage(wbc, page); unlock_page(page); return 0; @@ -3232,7 +3225,7 @@ static int ext4_normal_writepage(struct page *page, * happily proceed with mapping them and writing the page. */ BUG_ON(walk_page_buffers(NULL, page_buffers(page), 0, len, NULL, - ext4_bh_unmapped_or_delay)); + ext4_bh_delay_or_unwritten)); } if (!ext4_journal_current_handle()) @@ -3322,7 +3315,7 @@ static int ext4_journalled_writepage(struct page *page, * happily proceed with mapping them and writing the page. */ BUG_ON(walk_page_buffers(NULL, page_buffers(page), 0, len, NULL, - ext4_bh_unmapped_or_delay)); + ext4_bh_delay_or_unwritten)); } if (ext4_journal_current_handle()) -- cgit v1.2.3 From 43ce1d23b43330634507a049b55c36e91d27282e Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Sun, 14 Jun 2009 17:58:45 -0400 Subject: ext4: Fix mmap/truncate race when blocksize < pagesize && !nodellaoc This patch fixes the mmap/truncate race that was fixed for delayed allocation by merging ext4_{journalled,normal,da}_writepage() into ext4_writepage(). Signed-off-by: Aneesh Kumar K.V Acked-by: Jan Kara Signed-off-by: "Theodore Ts'o" --- fs/ext4/inode.c | 234 +++++++++++--------------------------------- include/trace/events/ext4.h | 45 +-------- 2 files changed, 58 insertions(+), 221 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 1275f34589c..97c48b5b057 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -47,6 +47,10 @@ #define MPAGE_DA_EXTENT_TAIL 0x01 +static int __ext4_journalled_writepage(struct page *page, + struct writeback_control *wbc, + unsigned int len); + static inline int ext4_begin_ordered_truncate(struct inode *inode, loff_t new_size) { @@ -2392,7 +2396,7 @@ static int __mpage_da_writepage(struct page *page, * We need to try to allocate * unmapped blocks in the same page. * Otherwise we won't make progress - * with the page in ext4_da_writepage + * with the page in ext4_writepage */ if (ext4_bh_delay_or_unwritten(NULL, bh)) { mpage_add_bh_to_extent(mpd, logical, @@ -2519,13 +2523,47 @@ static int noalloc_get_block_write(struct inode *inode, sector_t iblock, } /* + * Note that we don't need to start a transaction unless we're journaling data + * because we should have holes filled from ext4_page_mkwrite(). We even don't + * need to file the inode to the transaction's list in ordered mode because if + * we are writing back data added by write(), the inode is already there and if + * we are writing back data modified via mmap(), noone guarantees in which + * transaction the data will hit the disk. In case we are journaling data, we + * cannot start transaction directly because transaction start ranks above page + * lock so we have to do some magic. + * * This function can get called via... * - ext4_da_writepages after taking page lock (have journal handle) * - journal_submit_inode_data_buffers (no journal handle) * - shrink_page_list via pdflush (no journal handle) * - grab_page_cache when doing write_begin (have journal handle) + * + * We don't do any block allocation in this function. If we have page with + * multiple blocks we need to write those buffer_heads that are mapped. This + * is important for mmaped based write. So if we do with blocksize 1K + * truncate(f, 1024); + * a = mmap(f, 0, 4096); + * a[0] = 'a'; + * truncate(f, 4096); + * we have in the page first buffer_head mapped via page_mkwrite call back + * but other bufer_heads would be unmapped but dirty(dirty done via the + * do_wp_page). So writepage should write the first block. If we modify + * the mmap area beyond 1024 we will again get a page_fault and the + * page_mkwrite callback will do the block allocation and mark the + * buffer_heads mapped. + * + * We redirty the page if we have any buffer_heads that is either delay or + * unwritten in the page. + * + * We can get recursively called as show below. + * + * ext4_writepage() -> kmalloc() -> __alloc_pages() -> page_launder() -> + * ext4_writepage() + * + * But since we don't do any block allocation we should not deadlock. + * Page also have the dirty flag cleared so we don't get recurive page_lock. */ -static int ext4_da_writepage(struct page *page, +static int ext4_writepage(struct page *page, struct writeback_control *wbc) { int ret = 0; @@ -2534,7 +2572,7 @@ static int ext4_da_writepage(struct page *page, struct buffer_head *page_bufs; struct inode *inode = page->mapping->host; - trace_ext4_da_writepage(inode, page); + trace_ext4_writepage(inode, page); size = i_size_read(inode); if (page->index == size >> PAGE_CACHE_SHIFT) len = size & ~PAGE_CACHE_MASK; @@ -2596,6 +2634,15 @@ static int ext4_da_writepage(struct page *page, block_commit_write(page, 0, len); } + if (PageChecked(page) && ext4_should_journal_data(inode)) { + /* + * It's mmapped pagecache. Add buffers and journal it. There + * doesn't seem much point in redirtying the page here. + */ + ClearPageChecked(page); + return __ext4_journalled_writepage(page, wbc, len); + } + if (test_opt(inode->i_sb, NOBH) && ext4_should_writeback_data(inode)) ret = nobh_writepage(page, noalloc_get_block_write, wbc); else @@ -3135,112 +3182,10 @@ static int bput_one(handle_t *handle, struct buffer_head *bh) return 0; } -/* - * Note that we don't need to start a transaction unless we're journaling data - * because we should have holes filled from ext4_page_mkwrite(). We even don't - * need to file the inode to the transaction's list in ordered mode because if - * we are writing back data added by write(), the inode is already there and if - * we are writing back data modified via mmap(), noone guarantees in which - * transaction the data will hit the disk. In case we are journaling data, we - * cannot start transaction directly because transaction start ranks above page - * lock so we have to do some magic. - * - * In all journaling modes block_write_full_page() will start the I/O. - * - * Problem: - * - * ext4_writepage() -> kmalloc() -> __alloc_pages() -> page_launder() -> - * ext4_writepage() - * - * Similar for: - * - * ext4_file_write() -> generic_file_write() -> __alloc_pages() -> ... - * - * Same applies to ext4_get_block(). We will deadlock on various things like - * lock_journal and i_data_sem - * - * Setting PF_MEMALLOC here doesn't work - too many internal memory - * allocations fail. - * - * 16May01: If we're reentered then journal_current_handle() will be - * non-zero. We simply *return*. - * - * 1 July 2001: @@@ FIXME: - * In journalled data mode, a data buffer may be metadata against the - * current transaction. But the same file is part of a shared mapping - * and someone does a writepage() on it. - * - * We will move the buffer onto the async_data list, but *after* it has - * been dirtied. So there's a small window where we have dirty data on - * BJ_Metadata. - * - * Note that this only applies to the last partial page in the file. The - * bit which block_write_full_page() uses prepare/commit for. (That's - * broken code anyway: it's wrong for msync()). - * - * It's a rare case: affects the final partial page, for journalled data - * where the file is subject to bith write() and writepage() in the same - * transction. To fix it we'll need a custom block_write_full_page(). - * We'll probably need that anyway for journalling writepage() output. - * - * We don't honour synchronous mounts for writepage(). That would be - * disastrous. Any write() or metadata operation will sync the fs for - * us. - * - */ -static int __ext4_normal_writepage(struct page *page, - struct writeback_control *wbc) -{ - struct inode *inode = page->mapping->host; - - if (test_opt(inode->i_sb, NOBH)) - return nobh_writepage(page, noalloc_get_block_write, wbc); - else - return block_write_full_page(page, noalloc_get_block_write, - wbc); -} - -static int ext4_normal_writepage(struct page *page, - struct writeback_control *wbc) -{ - struct inode *inode = page->mapping->host; - loff_t size = i_size_read(inode); - loff_t len; - - trace_ext4_normal_writepage(inode, page); - J_ASSERT(PageLocked(page)); - if (page->index == size >> PAGE_CACHE_SHIFT) - len = size & ~PAGE_CACHE_MASK; - else - len = PAGE_CACHE_SIZE; - - if (page_has_buffers(page)) { - /* if page has buffers it should all be mapped - * and allocated. If there are not buffers attached - * to the page we know the page is dirty but it lost - * buffers. That means that at some moment in time - * after write_begin() / write_end() has been called - * all buffers have been clean and thus they must have been - * written at least once. So they are all mapped and we can - * happily proceed with mapping them and writing the page. - */ - BUG_ON(walk_page_buffers(NULL, page_buffers(page), 0, len, NULL, - ext4_bh_delay_or_unwritten)); - } - - if (!ext4_journal_current_handle()) - return __ext4_normal_writepage(page, wbc); - - redirty_page_for_writepage(wbc, page); - unlock_page(page); - return 0; -} - static int __ext4_journalled_writepage(struct page *page, - struct writeback_control *wbc) + struct writeback_control *wbc, + unsigned int len) { - loff_t size; - unsigned int len; struct address_space *mapping = page->mapping; struct inode *inode = mapping->host; struct buffer_head *page_bufs; @@ -3248,16 +3193,8 @@ static int __ext4_journalled_writepage(struct page *page, int ret = 0; int err; - size = i_size_read(inode); - if (page->index == size >> PAGE_CACHE_SHIFT) - len = size & ~PAGE_CACHE_MASK; - else - len = PAGE_CACHE_SIZE; - ret = block_prepare_write(page, 0, len, noalloc_get_block_write); - if (ret != 0) - goto out_unlock; - page_bufs = page_buffers(page); + BUG_ON(!page_bufs); walk_page_buffers(handle, page_bufs, 0, len, NULL, bget_one); /* As soon as we unlock the page, it can go away, but we have * references to buffers so we are safe */ @@ -3282,67 +3219,10 @@ static int __ext4_journalled_writepage(struct page *page, walk_page_buffers(handle, page_bufs, 0, len, NULL, bput_one); EXT4_I(inode)->i_state |= EXT4_STATE_JDATA; - goto out; - -out_unlock: - unlock_page(page); out: return ret; } -static int ext4_journalled_writepage(struct page *page, - struct writeback_control *wbc) -{ - struct inode *inode = page->mapping->host; - loff_t size = i_size_read(inode); - loff_t len; - - trace_ext4_journalled_writepage(inode, page); - J_ASSERT(PageLocked(page)); - if (page->index == size >> PAGE_CACHE_SHIFT) - len = size & ~PAGE_CACHE_MASK; - else - len = PAGE_CACHE_SIZE; - - if (page_has_buffers(page)) { - /* if page has buffers it should all be mapped - * and allocated. If there are not buffers attached - * to the page we know the page is dirty but it lost - * buffers. That means that at some moment in time - * after write_begin() / write_end() has been called - * all buffers have been clean and thus they must have been - * written at least once. So they are all mapped and we can - * happily proceed with mapping them and writing the page. - */ - BUG_ON(walk_page_buffers(NULL, page_buffers(page), 0, len, NULL, - ext4_bh_delay_or_unwritten)); - } - - if (ext4_journal_current_handle()) - goto no_write; - - if (PageChecked(page)) { - /* - * It's mmapped pagecache. Add buffers and journal it. There - * doesn't seem much point in redirtying the page here. - */ - ClearPageChecked(page); - return __ext4_journalled_writepage(page, wbc); - } else { - /* - * It may be a page full of checkpoint-mode buffers. We don't - * really know unless we go poke around in the buffer_heads. - * But block_write_full_page will do the right thing. - */ - return block_write_full_page(page, noalloc_get_block_write, - wbc); - } -no_write: - redirty_page_for_writepage(wbc, page); - unlock_page(page); - return 0; -} - static int ext4_readpage(struct file *file, struct page *page) { return mpage_readpage(page, ext4_get_block); @@ -3489,7 +3369,7 @@ static int ext4_journalled_set_page_dirty(struct page *page) static const struct address_space_operations ext4_ordered_aops = { .readpage = ext4_readpage, .readpages = ext4_readpages, - .writepage = ext4_normal_writepage, + .writepage = ext4_writepage, .sync_page = block_sync_page, .write_begin = ext4_write_begin, .write_end = ext4_ordered_write_end, @@ -3504,7 +3384,7 @@ static const struct address_space_operations ext4_ordered_aops = { static const struct address_space_operations ext4_writeback_aops = { .readpage = ext4_readpage, .readpages = ext4_readpages, - .writepage = ext4_normal_writepage, + .writepage = ext4_writepage, .sync_page = block_sync_page, .write_begin = ext4_write_begin, .write_end = ext4_writeback_write_end, @@ -3519,7 +3399,7 @@ static const struct address_space_operations ext4_writeback_aops = { static const struct address_space_operations ext4_journalled_aops = { .readpage = ext4_readpage, .readpages = ext4_readpages, - .writepage = ext4_journalled_writepage, + .writepage = ext4_writepage, .sync_page = block_sync_page, .write_begin = ext4_write_begin, .write_end = ext4_journalled_write_end, @@ -3533,7 +3413,7 @@ static const struct address_space_operations ext4_journalled_aops = { static const struct address_space_operations ext4_da_aops = { .readpage = ext4_readpage, .readpages = ext4_readpages, - .writepage = ext4_da_writepage, + .writepage = ext4_writepage, .writepages = ext4_da_writepages, .sync_page = block_sync_page, .write_begin = ext4_da_write_begin, diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h index b456fb0a3c5..dfbc9b0edc8 100644 --- a/include/trace/events/ext4.h +++ b/include/trace/events/ext4.h @@ -190,7 +190,7 @@ TRACE_EVENT(ext4_journalled_write_end, __entry->copied) ); -TRACE_EVENT(ext4_da_writepage, +TRACE_EVENT(ext4_writepage, TP_PROTO(struct inode *inode, struct page *page), TP_ARGS(inode, page), @@ -342,49 +342,6 @@ TRACE_EVENT(ext4_da_write_end, __entry->copied) ); -TRACE_EVENT(ext4_normal_writepage, - TP_PROTO(struct inode *inode, struct page *page), - - TP_ARGS(inode, page), - - TP_STRUCT__entry( - __field( dev_t, dev ) - __field( ino_t, ino ) - __field( pgoff_t, index ) - ), - - TP_fast_assign( - __entry->dev = inode->i_sb->s_dev; - __entry->ino = inode->i_ino; - __entry->index = page->index; - ), - - TP_printk("dev %s ino %lu page_index %lu", - jbd2_dev_to_name(__entry->dev), __entry->ino, __entry->index) -); - -TRACE_EVENT(ext4_journalled_writepage, - TP_PROTO(struct inode *inode, struct page *page), - - TP_ARGS(inode, page), - - TP_STRUCT__entry( - __field( dev_t, dev ) - __field( ino_t, ino ) - __field( pgoff_t, index ) - - ), - - TP_fast_assign( - __entry->dev = inode->i_sb->s_dev; - __entry->ino = inode->i_ino; - __entry->index = page->index; - ), - - TP_printk("dev %s ino %lu page_index %lu", - jbd2_dev_to_name(__entry->dev), __entry->ino, __entry->index) -); - TRACE_EVENT(ext4_discard_blocks, TP_PROTO(struct super_block *sb, unsigned long long blk, unsigned long long count), -- cgit v1.2.3 From 62e086be5d2abef8cad854bc5707329ad345f2ec Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Sun, 14 Jun 2009 17:59:34 -0400 Subject: ext4: Move __ext4_journalled_writepage() to avoid forward declaration In addition, fix two unused variable warnings. Signed-off-by: Aneesh Kumar K.V Signed-off-by: "Theodore Ts'o" --- fs/ext4/inode.c | 112 +++++++++++++++++++++++++++----------------------------- 1 file changed, 54 insertions(+), 58 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 97c48b5b057..c98e3afea30 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -47,10 +47,6 @@ #define MPAGE_DA_EXTENT_TAIL 0x01 -static int __ext4_journalled_writepage(struct page *page, - struct writeback_control *wbc, - unsigned int len); - static inline int ext4_begin_ordered_truncate(struct inode *inode, loff_t new_size) { @@ -2522,6 +2518,59 @@ static int noalloc_get_block_write(struct inode *inode, sector_t iblock, return ret; } +static int bget_one(handle_t *handle, struct buffer_head *bh) +{ + get_bh(bh); + return 0; +} + +static int bput_one(handle_t *handle, struct buffer_head *bh) +{ + put_bh(bh); + return 0; +} + +static int __ext4_journalled_writepage(struct page *page, + struct writeback_control *wbc, + unsigned int len) +{ + struct address_space *mapping = page->mapping; + struct inode *inode = mapping->host; + struct buffer_head *page_bufs; + handle_t *handle = NULL; + int ret = 0; + int err; + + page_bufs = page_buffers(page); + BUG_ON(!page_bufs); + walk_page_buffers(handle, page_bufs, 0, len, NULL, bget_one); + /* As soon as we unlock the page, it can go away, but we have + * references to buffers so we are safe */ + unlock_page(page); + + handle = ext4_journal_start(inode, ext4_writepage_trans_blocks(inode)); + if (IS_ERR(handle)) { + ret = PTR_ERR(handle); + goto out; + } + + ret = walk_page_buffers(handle, page_bufs, 0, len, NULL, + do_journal_get_write_access); + + err = walk_page_buffers(handle, page_bufs, 0, len, NULL, + write_end_fn); + if (ret == 0) + ret = err; + err = ext4_journal_stop(handle); + if (!ret) + ret = err; + + walk_page_buffers(handle, page_bufs, 0, len, NULL, bput_one); + EXT4_I(inode)->i_state |= EXT4_STATE_JDATA; +out: + return ret; +} + /* * Note that we don't need to start a transaction unless we're journaling data * because we should have holes filled from ext4_page_mkwrite(). We even don't @@ -2564,7 +2613,7 @@ static int noalloc_get_block_write(struct inode *inode, sector_t iblock, * Page also have the dirty flag cleared so we don't get recurive page_lock. */ static int ext4_writepage(struct page *page, - struct writeback_control *wbc) + struct writeback_control *wbc) { int ret = 0; loff_t size; @@ -3170,59 +3219,6 @@ static sector_t ext4_bmap(struct address_space *mapping, sector_t block) return generic_block_bmap(mapping, block, ext4_get_block); } -static int bget_one(handle_t *handle, struct buffer_head *bh) -{ - get_bh(bh); - return 0; -} - -static int bput_one(handle_t *handle, struct buffer_head *bh) -{ - put_bh(bh); - return 0; -} - -static int __ext4_journalled_writepage(struct page *page, - struct writeback_control *wbc, - unsigned int len) -{ - struct address_space *mapping = page->mapping; - struct inode *inode = mapping->host; - struct buffer_head *page_bufs; - handle_t *handle = NULL; - int ret = 0; - int err; - - page_bufs = page_buffers(page); - BUG_ON(!page_bufs); - walk_page_buffers(handle, page_bufs, 0, len, NULL, bget_one); - /* As soon as we unlock the page, it can go away, but we have - * references to buffers so we are safe */ - unlock_page(page); - - handle = ext4_journal_start(inode, ext4_writepage_trans_blocks(inode)); - if (IS_ERR(handle)) { - ret = PTR_ERR(handle); - goto out; - } - - ret = walk_page_buffers(handle, page_bufs, 0, len, NULL, - do_journal_get_write_access); - - err = walk_page_buffers(handle, page_bufs, 0, len, NULL, - write_end_fn); - if (ret == 0) - ret = err; - err = ext4_journal_stop(handle); - if (!ret) - ret = err; - - walk_page_buffers(handle, page_bufs, 0, len, NULL, bput_one); - EXT4_I(inode)->i_state |= EXT4_STATE_JDATA; -out: - return ret; -} - static int ext4_readpage(struct file *file, struct page *page) { return mpage_readpage(page, ext4_get_block); -- cgit v1.2.3 From 61f98ffd74254a95871168bd5a6646b4f3002e31 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Thu, 11 Jun 2009 10:27:32 -0400 Subject: cifs: display scopeid in /proc/mounts Move address display into a new function and display the scopeid as part of the address in /proc/mounts. Signed-off-by: Jeff Layton Signed-off-by: Steve French --- fs/cifs/cifsfs.c | 33 ++++++++++++++++++++++----------- 1 file changed, 22 insertions(+), 11 deletions(-) diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 8b315708cb3..ddef913ff3e 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -333,6 +333,27 @@ cifs_destroy_inode(struct inode *inode) kmem_cache_free(cifs_inode_cachep, CIFS_I(inode)); } +static void +cifs_show_address(struct seq_file *s, struct TCP_Server_Info *server) +{ + seq_printf(s, ",addr="); + + switch (server->addr.sockAddr.sin_family) { + case AF_INET: + seq_printf(s, "%pI4", &server->addr.sockAddr.sin_addr.s_addr); + break; + case AF_INET6: + seq_printf(s, "%pI6", + &server->addr.sockAddr6.sin6_addr.s6_addr); + if (server->addr.sockAddr6.sin6_scope_id) + seq_printf(s, "%%%u", + server->addr.sockAddr6.sin6_scope_id); + break; + default: + seq_printf(s, "(unknown)"); + } +} + /* * cifs_show_options() is for displaying mount options in /proc/mounts. * Not all settable options are displayed but most of the important @@ -343,7 +364,6 @@ cifs_show_options(struct seq_file *s, struct vfsmount *m) { struct cifs_sb_info *cifs_sb; struct cifsTconInfo *tcon; - struct TCP_Server_Info *server; cifs_sb = CIFS_SB(m->mnt_sb); tcon = cifs_sb->tcon; @@ -364,16 +384,7 @@ cifs_show_options(struct seq_file *s, struct vfsmount *m) if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) seq_printf(s, ",forcegid"); - server = tcon->ses->server; - seq_printf(s, ",addr="); - switch (server->addr.sockAddr6.sin6_family) { - case AF_INET6: - seq_printf(s, "%pI6", &server->addr.sockAddr6.sin6_addr); - break; - case AF_INET: - seq_printf(s, "%pI4", &server->addr.sockAddr.sin_addr.s_addr); - break; - } + cifs_show_address(s, tcon->ses->server); if (!tcon->unix_ext) seq_printf(s, ",file_mode=0%o,dir_mode=0%o", -- cgit v1.2.3 From 361ea1ae5451040cd254eee0b6df64581080b2cc Mon Sep 17 00:00:00 2001 From: Steve French Date: Mon, 15 Jun 2009 13:46:12 +0000 Subject: [CIFS] Fix build break Signed-off-by: Steve French --- fs/cifs/netmisc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c index 00e6e357ae8..f9a54da97d3 100644 --- a/fs/cifs/netmisc.c +++ b/fs/cifs/netmisc.c @@ -166,7 +166,7 @@ int cifs_convert_address(char *src, void *dst) { struct sockaddr_in *s4 = (struct sockaddr_in *) dst; - struct sockaddr_in6 *s6 = (Struct sockaddr_in6 *) dst; + struct sockaddr_in6 *s6 = (struct sockaddr_in6 *) dst; if (cifs_inet_pton(AF_INET, src, &s4->sin_addr.s_addr)) { s4->sin_family = AF_INET; -- cgit v1.2.3 From c79ee4e466dd12347f112e2af306dca35198458f Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Tue, 16 Jun 2009 12:23:58 +0200 Subject: dma-debug: fix off-by-one error in overlap function This patch fixes a bug in the overlap function which returned true if one region ends exactly before the second region begins. This is no overlap but the function returned true in that case. Cc: stable@kernel.org Reported-by: Andrew Randrianasulu Signed-off-by: Joerg Roedel --- lib/dma-debug.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/dma-debug.c b/lib/dma-debug.c index 3b93129a968..a9b6b5c9e09 100644 --- a/lib/dma-debug.c +++ b/lib/dma-debug.c @@ -862,7 +862,7 @@ static inline bool overlap(void *addr, u64 size, void *start, void *end) return ((addr >= start && addr < end) || (addr2 >= start && addr2 < end) || - ((addr < start) && (addr2 >= end))); + ((addr < start) && (addr2 > end))); } static void check_for_illegal_area(struct device *dev, void *addr, u64 size) -- cgit v1.2.3 From a7aea373b4ca428f1be2c1fedd2f26c8e3f2864d Mon Sep 17 00:00:00 2001 From: "Ira W. Snyder" Date: Thu, 23 Apr 2009 16:17:54 -0700 Subject: fsldma: use PCI Read Multiple command By default, the Freescale 83xx DMA controller uses the PCI Read Line command when reading data over the PCI bus. Setting the controller to use the PCI Read Multiple command instead allows the controller to read much larger bursts of data, which provides a drastic speed increase. The slowdown due to using PCI Read Line was only observed when a PCI-to-PCI bridge was between the devices trying to communicate. A simple test driver showed an increase from 4MB/sec to 116MB/sec when performing DMA over the PCI bus. Using DMA to transfer between blocks of local SDRAM showed no change in performance with this patch. The dmatest driver was also used to verify the correctness of the transfers, and showed no errors. Signed-off-by: Ira W. Snyder Acked-by: Timur Tabi Acked-by: Kumar Gala Signed-off-by: Dan Williams --- drivers/dma/fsldma.c | 10 ++++++++-- drivers/dma/fsldma.h | 1 + 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index f18d1bde043..a1cb25e277b 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -12,6 +12,11 @@ * also fit for MPC8560, MPC8555, MPC8548, MPC8641, and etc. * The support for MPC8349 DMA contorller is also added. * + * This driver instructs the DMA controller to issue the PCI Read Multiple + * command for PCI read operations, instead of using the default PCI Read Line + * command. Please be aware that this setting may result in read pre-fetching + * on some platforms. + * * This is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or @@ -49,9 +54,10 @@ static void dma_init(struct fsl_dma_chan *fsl_chan) case FSL_DMA_IP_83XX: /* Set the channel to below modes: * EOTIE - End-of-transfer interrupt enable + * PRC_RM - PCI read multiple */ - DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, FSL_DMA_MR_EOTIE, - 32); + DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, FSL_DMA_MR_EOTIE + | FSL_DMA_MR_PRC_RM, 32); break; } diff --git a/drivers/dma/fsldma.h b/drivers/dma/fsldma.h index 4f21a512d84..dc7f2686579 100644 --- a/drivers/dma/fsldma.h +++ b/drivers/dma/fsldma.h @@ -38,6 +38,7 @@ /* Special MR definition for MPC8349 */ #define FSL_DMA_MR_EOTIE 0x00000080 +#define FSL_DMA_MR_PRC_RM 0x00000800 #define FSL_DMA_SR_CH 0x00000020 #define FSL_DMA_SR_PE 0x00000010 -- cgit v1.2.3 From be30b226f2ae618cd719e40267d9923db1db9001 Mon Sep 17 00:00:00 2001 From: Ira Snyder Date: Thu, 28 May 2009 09:20:42 +0000 Subject: fsldma: enable external start for the 83xx controller The 83xx controller has external start capability, but lacks external pause capability. Hook up the external start function pointer for the 83xx controller. Signed-off-by: Ira W. Snyder Signed-off-by: Dan Williams --- drivers/dma/fsldma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index a1cb25e277b..10bcf0cb0ef 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -877,9 +877,9 @@ static int __devinit fsl_dma_chan_probe(struct fsl_dma_device *fdev, switch (new_fsl_chan->feature & FSL_DMA_IP_MASK) { case FSL_DMA_IP_85XX: - new_fsl_chan->toggle_ext_start = fsl_chan_toggle_ext_start; new_fsl_chan->toggle_ext_pause = fsl_chan_toggle_ext_pause; case FSL_DMA_IP_83XX: + new_fsl_chan->toggle_ext_start = fsl_chan_toggle_ext_start; new_fsl_chan->set_src_loop_size = fsl_chan_set_src_loop_size; new_fsl_chan->set_dest_loop_size = fsl_chan_set_dest_loop_size; } -- cgit v1.2.3 From 43a1a3ed6bf5a1b9ae197b4f5f20033baf19db61 Mon Sep 17 00:00:00 2001 From: Ira Snyder Date: Thu, 28 May 2009 09:26:40 +0000 Subject: fsldma: do not clear bandwidth control bits on the 83xx controller The 83xx controller does not support the external pause feature. The bit in the mode register that controls external pause on the 85xx controller happens to be part of the bandwidth control settings for the 83xx controller. This patch fixes the driver so that it only clears the external pause bit if the hardware is the 85xx controller. When driving the 83xx controller, the bit is left untouched. This follows the existing convention that mode registers settings are not touched unless necessary. Signed-off-by: Ira W. Snyder Signed-off-by: Dan Williams --- drivers/dma/fsldma.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index 10bcf0cb0ef..6e60c77a145 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -147,10 +147,11 @@ static void dma_start(struct fsl_dma_chan *fsl_chan) if (fsl_chan->feature & FSL_DMA_CHAN_PAUSE_EXT) { DMA_OUT(fsl_chan, &fsl_chan->reg_base->bcr, 0, 32); mr_set |= FSL_DMA_MR_EMP_EN; - } else + } else if ((fsl_chan->feature & FSL_DMA_IP_MASK) == FSL_DMA_IP_85XX) { DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, DMA_IN(fsl_chan, &fsl_chan->reg_base->mr, 32) & ~FSL_DMA_MR_EMP_EN, 32); + } if (fsl_chan->feature & FSL_DMA_CHAN_START_EXT) mr_set |= FSL_DMA_MR_EMS_EN; -- cgit v1.2.3 From b0a5b83ee0fce9dbf8ff5fe1f8c9ae7dfafe458c Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 16 Jun 2009 16:11:14 +0200 Subject: dma-debug: Put all hash-chain locks into the same lock class Alan Cox reported that lockdep runs out of its stack-trace entries with certain configs: BUG: MAX_STACK_TRACE_ENTRIES too low This happens because there are 1024 hash buckets, each with a separate lock. Lockdep puts each lock into a separate lock class and tracks them independently. But in reality we never take more than one of the buckets, so they really belong into a single lock-class. Annotate the has bucket lock init accordingly. [ Impact: reduce the lockdep footprint of dma-debug ] Reported-by: Alan Cox Signed-off-by: Ingo Molnar Signed-off-by: Joerg Roedel --- lib/dma-debug.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/dma-debug.c b/lib/dma-debug.c index a9b6b5c9e09..c9187fed0b9 100644 --- a/lib/dma-debug.c +++ b/lib/dma-debug.c @@ -716,7 +716,7 @@ void dma_debug_init(u32 num_entries) for (i = 0; i < HASH_SIZE; ++i) { INIT_LIST_HEAD(&dma_entry_hash[i].list); - dma_entry_hash[i].lock = SPIN_LOCK_UNLOCKED; + spin_lock_init(&dma_entry_hash[i].lock); } if (dma_debug_fs_init() != 0) { -- cgit v1.2.3 From a566a6b11c86147fe9fc9db7ab15f9eecca3e862 Mon Sep 17 00:00:00 2001 From: Steven Whitehouse Date: Mon, 15 Jun 2009 08:26:48 +0100 Subject: dlm: Fix uninitialised variable warning in lock.c MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit CC [M] fs/dlm/lock.o fs/dlm/lock.c: In function ‘find_rsb’: fs/dlm/lock.c:438: warning: ‘r’ may be used uninitialized in this function Since r is used on the error path to set r_ret, set it to NULL. Signed-off-by: Steven Whitehouse Signed-off-by: David Teigland --- fs/dlm/lock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c index 205ec95b347..eb507c453c5 100644 --- a/fs/dlm/lock.c +++ b/fs/dlm/lock.c @@ -435,7 +435,7 @@ static int search_rsb(struct dlm_ls *ls, char *name, int len, int b, static int find_rsb(struct dlm_ls *ls, char *name, int namelen, unsigned int flags, struct dlm_rsb **r_ret) { - struct dlm_rsb *r, *tmp; + struct dlm_rsb *r = NULL, *tmp; uint32_t hash, bucket; int error = -EINVAL; -- cgit v1.2.3 From c78a87d0a1fc885dfdbe21fd5e07787691dfb068 Mon Sep 17 00:00:00 2001 From: David Teigland Date: Thu, 18 Jun 2009 13:20:24 -0500 Subject: dlm: fix plock use-after-free Fix a regression from the original addition of nfs lock support 586759f03e2e9031ac5589912a51a909ed53c30a. When a synchronous (non-nfs) plock completes, the waiting thread will wake up and free the op struct. This races with the user thread in dev_write() which goes on to read the op's callback field to check if the lock is async and needs a callback. This check can happen on the freed op. The fix is to note the callback value before the op can be freed. Signed-off-by: David Teigland --- fs/dlm/plock.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) diff --git a/fs/dlm/plock.c b/fs/dlm/plock.c index 894a32d438d..16f682e26c0 100644 --- a/fs/dlm/plock.c +++ b/fs/dlm/plock.c @@ -353,7 +353,7 @@ static ssize_t dev_write(struct file *file, const char __user *u, size_t count, { struct dlm_plock_info info; struct plock_op *op; - int found = 0; + int found = 0, do_callback = 0; if (count != sizeof(info)) return -EINVAL; @@ -366,21 +366,24 @@ static ssize_t dev_write(struct file *file, const char __user *u, size_t count, spin_lock(&ops_lock); list_for_each_entry(op, &recv_list, list) { - if (op->info.fsid == info.fsid && op->info.number == info.number && + if (op->info.fsid == info.fsid && + op->info.number == info.number && op->info.owner == info.owner) { + struct plock_xop *xop = (struct plock_xop *)op; list_del_init(&op->list); - found = 1; - op->done = 1; memcpy(&op->info, &info, sizeof(info)); + if (xop->callback) + do_callback = 1; + else + op->done = 1; + found = 1; break; } } spin_unlock(&ops_lock); if (found) { - struct plock_xop *xop; - xop = (struct plock_xop *)op; - if (xop->callback) + if (do_callback) dlm_plock_callback(op); else wake_up(&recv_wq); -- cgit v1.2.3 From aa93d632c496184e5b779dbcf961bf1c6ececf0b Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Tue, 5 May 2009 09:52:46 -0700 Subject: drm/i915: Require digital monitor on HDMI ports for detect HDMI and DVI both require DDC/EDID on monitors, so use that to know when a monitor is connected as the hot-plug pins are shared with SDVO and DisplayPort Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_hdmi.c | 30 ++++++++++++++++-------------- 1 file changed, 16 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 4ea2a651b92..2495359ea8d 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -31,6 +31,7 @@ #include "drmP.h" #include "drm.h" #include "drm_crtc.h" +#include "drm_edid.h" #include "intel_drv.h" #include "i915_drm.h" #include "i915_drv.h" @@ -129,20 +130,26 @@ static bool intel_hdmi_mode_fixup(struct drm_encoder *encoder, return true; } -static void -intel_hdmi_sink_detect(struct drm_connector *connector) +static enum drm_connector_status +intel_hdmi_edid_detect(struct drm_connector *connector) { struct intel_output *intel_output = to_intel_output(connector); struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv; struct edid *edid = NULL; + enum drm_connector_status status = connector_status_disconnected; edid = drm_get_edid(&intel_output->base, &intel_output->ddc_bus->adapter); - if (edid != NULL) { - hdmi_priv->has_hdmi_sink = drm_detect_hdmi_monitor(edid); - kfree(edid); + hdmi_priv->has_hdmi_sink = false; + if (edid) { + if (edid->digital) { + status = connector_status_connected; + hdmi_priv->has_hdmi_sink = drm_detect_hdmi_monitor(edid); + } intel_output->base.display_info.raw_edid = NULL; + kfree(edid); } + return status; } static enum drm_connector_status @@ -154,11 +161,7 @@ igdng_hdmi_detect(struct drm_connector *connector) /* FIXME hotplug detect */ hdmi_priv->has_hdmi_sink = false; - intel_hdmi_sink_detect(connector); - if (hdmi_priv->has_hdmi_sink) - return connector_status_connected; - else - return connector_status_disconnected; + return intel_hdmi_edid_detect(connector); } static enum drm_connector_status @@ -201,10 +204,9 @@ intel_hdmi_detect(struct drm_connector *connector) return connector_status_unknown; } - if ((I915_READ(PORT_HOTPLUG_STAT) & bit) != 0) { - intel_hdmi_sink_detect(connector); - return connector_status_connected; - } else + if ((I915_READ(PORT_HOTPLUG_STAT) & bit) != 0) + return intel_hdmi_edid_detect(connector); + else return connector_status_disconnected; } -- cgit v1.2.3 From 98acd46f356e560c371c0e416d92e8e56be31804 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Sun, 14 Jun 2009 12:31:58 -0700 Subject: drm/i915: Apple DMI info has inconsistent SYS_VENDOR information Some machines say 'Apple Inc.' while others say 'Apple Computer, Inc'. Switch the test to just look for 'Apple' instead. Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_lvds.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index f073ed8432e..345e5055f1c 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -456,7 +456,7 @@ static const struct dmi_system_id intel_no_lvds[] = { .callback = intel_no_lvds_dmi_callback, .ident = "Apple Mac Mini (Core series)", .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), + DMI_MATCH(DMI_SYS_VENDOR, "Apple"), DMI_MATCH(DMI_PRODUCT_NAME, "Macmini1,1"), }, }, @@ -464,7 +464,7 @@ static const struct dmi_system_id intel_no_lvds[] = { .callback = intel_no_lvds_dmi_callback, .ident = "Apple Mac Mini (Core 2 series)", .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), + DMI_MATCH(DMI_SYS_VENDOR, "Apple"), DMI_MATCH(DMI_PRODUCT_NAME, "Macmini2,1"), }, }, -- cgit v1.2.3 From b99e228d354cc1e7f19fb8b5f1297d493e309186 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Wed, 10 Jun 2009 19:08:16 -0700 Subject: drm/i915: check for CONFIG_PNP before using pnp function Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/i915_gem_tiling.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c index 5c1ceec49f5..daeae62e1c2 100644 --- a/drivers/gpu/drm/i915/i915_gem_tiling.c +++ b/drivers/gpu/drm/i915/i915_gem_tiling.c @@ -114,11 +114,13 @@ intel_alloc_mchbar_resource(struct drm_device *dev) mchbar_addr = ((u64)temp_hi << 32) | temp_lo; /* If ACPI doesn't have it, assume we need to allocate it ourselves */ +#ifdef CONFIG_PNP if (mchbar_addr && pnp_range_reserved(mchbar_addr, mchbar_addr + MCHBAR_SIZE)) { ret = 0; goto out_put; } +#endif /* Get some space for it */ ret = pci_bus_alloc_resource(bridge_dev->bus, &dev_priv->mch_res, -- cgit v1.2.3 From f9c10a9b96a31b4a82a4fa807400c04f00284068 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Sat, 30 May 2009 12:16:25 -0700 Subject: drm/i915: Change I2C api to pass around i2c_adapters The existing API passed around intel_i2c_chan pointers, which are dependent on the i2c bit-banging algo. This precluded the driver from using outputs which use a different algo. Switching to the more general i2c_adpater allows the driver to support non bit-banging DDC. This also required moving the slave address into the output private structures. Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/dvo.h | 4 +-- drivers/gpu/drm/i915/dvo_ch7017.c | 20 ++++++++------- drivers/gpu/drm/i915/dvo_ch7xxx.c | 25 +++++++++--------- drivers/gpu/drm/i915/dvo_ivch.c | 21 +++++++-------- drivers/gpu/drm/i915/dvo_sil164.c | 25 +++++++++--------- drivers/gpu/drm/i915/dvo_tfp410.c | 25 +++++++++--------- drivers/gpu/drm/i915/intel_drv.h | 11 ++++---- drivers/gpu/drm/i915/intel_dvo.c | 16 +++++------- drivers/gpu/drm/i915/intel_hdmi.c | 2 +- drivers/gpu/drm/i915/intel_i2c.c | 16 ++++++++---- drivers/gpu/drm/i915/intel_modes.c | 14 +++++----- drivers/gpu/drm/i915/intel_sdvo.c | 52 +++++++++++++++++++------------------- 12 files changed, 118 insertions(+), 113 deletions(-) diff --git a/drivers/gpu/drm/i915/dvo.h b/drivers/gpu/drm/i915/dvo.h index e747ac42fe3..288fc50627e 100644 --- a/drivers/gpu/drm/i915/dvo.h +++ b/drivers/gpu/drm/i915/dvo.h @@ -37,7 +37,7 @@ struct intel_dvo_device { /* GPIO register used for i2c bus to control this device */ u32 gpio; int slave_addr; - struct intel_i2c_chan *i2c_bus; + struct i2c_adapter *i2c_bus; const struct intel_dvo_dev_ops *dev_ops; void *dev_priv; @@ -52,7 +52,7 @@ struct intel_dvo_dev_ops { * Returns NULL if the device does not exist. */ bool (*init)(struct intel_dvo_device *dvo, - struct intel_i2c_chan *i2cbus); + struct i2c_adapter *i2cbus); /* * Called to allow the output a chance to create properties after the diff --git a/drivers/gpu/drm/i915/dvo_ch7017.c b/drivers/gpu/drm/i915/dvo_ch7017.c index 03d4b4973b0..621815b531d 100644 --- a/drivers/gpu/drm/i915/dvo_ch7017.c +++ b/drivers/gpu/drm/i915/dvo_ch7017.c @@ -176,19 +176,20 @@ static void ch7017_dpms(struct intel_dvo_device *dvo, int mode); static bool ch7017_read(struct intel_dvo_device *dvo, int addr, uint8_t *val) { - struct intel_i2c_chan *i2cbus = dvo->i2c_bus; + struct i2c_adapter *adapter = dvo->i2c_bus; + struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter); u8 out_buf[2]; u8 in_buf[2]; struct i2c_msg msgs[] = { { - .addr = i2cbus->slave_addr, + .addr = dvo->slave_addr, .flags = 0, .len = 1, .buf = out_buf, }, { - .addr = i2cbus->slave_addr, + .addr = dvo->slave_addr, .flags = I2C_M_RD, .len = 1, .buf = in_buf, @@ -208,10 +209,11 @@ static bool ch7017_read(struct intel_dvo_device *dvo, int addr, uint8_t *val) static bool ch7017_write(struct intel_dvo_device *dvo, int addr, uint8_t val) { - struct intel_i2c_chan *i2cbus = dvo->i2c_bus; + struct i2c_adapter *adapter = dvo->i2c_bus; + struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter); uint8_t out_buf[2]; struct i2c_msg msg = { - .addr = i2cbus->slave_addr, + .addr = dvo->slave_addr, .flags = 0, .len = 2, .buf = out_buf, @@ -228,8 +230,9 @@ static bool ch7017_write(struct intel_dvo_device *dvo, int addr, uint8_t val) /** Probes for a CH7017 on the given bus and slave address. */ static bool ch7017_init(struct intel_dvo_device *dvo, - struct intel_i2c_chan *i2cbus) + struct i2c_adapter *adapter) { + struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter); struct ch7017_priv *priv; uint8_t val; @@ -237,8 +240,7 @@ static bool ch7017_init(struct intel_dvo_device *dvo, if (priv == NULL) return false; - dvo->i2c_bus = i2cbus; - dvo->i2c_bus->slave_addr = dvo->slave_addr; + dvo->i2c_bus = adapter; dvo->dev_priv = priv; if (!ch7017_read(dvo, CH7017_DEVICE_ID, &val)) @@ -248,7 +250,7 @@ static bool ch7017_init(struct intel_dvo_device *dvo, val != CH7018_DEVICE_ID_VALUE && val != CH7019_DEVICE_ID_VALUE) { DRM_DEBUG("ch701x not detected, got %d: from %s Slave %d.\n", - val, i2cbus->adapter.name,i2cbus->slave_addr); + val, i2cbus->adapter.name,dvo->slave_addr); goto fail; } diff --git a/drivers/gpu/drm/i915/dvo_ch7xxx.c b/drivers/gpu/drm/i915/dvo_ch7xxx.c index d2fd95dbd03..a9b89628968 100644 --- a/drivers/gpu/drm/i915/dvo_ch7xxx.c +++ b/drivers/gpu/drm/i915/dvo_ch7xxx.c @@ -123,19 +123,20 @@ static char *ch7xxx_get_id(uint8_t vid) static bool ch7xxx_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch) { struct ch7xxx_priv *ch7xxx= dvo->dev_priv; - struct intel_i2c_chan *i2cbus = dvo->i2c_bus; + struct i2c_adapter *adapter = dvo->i2c_bus; + struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter); u8 out_buf[2]; u8 in_buf[2]; struct i2c_msg msgs[] = { { - .addr = i2cbus->slave_addr, + .addr = dvo->slave_addr, .flags = 0, .len = 1, .buf = out_buf, }, { - .addr = i2cbus->slave_addr, + .addr = dvo->slave_addr, .flags = I2C_M_RD, .len = 1, .buf = in_buf, @@ -152,7 +153,7 @@ static bool ch7xxx_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch) if (!ch7xxx->quiet) { DRM_DEBUG("Unable to read register 0x%02x from %s:%02x.\n", - addr, i2cbus->adapter.name, i2cbus->slave_addr); + addr, i2cbus->adapter.name, dvo->slave_addr); } return false; } @@ -161,10 +162,11 @@ static bool ch7xxx_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch) static bool ch7xxx_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch) { struct ch7xxx_priv *ch7xxx = dvo->dev_priv; - struct intel_i2c_chan *i2cbus = dvo->i2c_bus; + struct i2c_adapter *adapter = dvo->i2c_bus; + struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter); uint8_t out_buf[2]; struct i2c_msg msg = { - .addr = i2cbus->slave_addr, + .addr = dvo->slave_addr, .flags = 0, .len = 2, .buf = out_buf, @@ -178,14 +180,14 @@ static bool ch7xxx_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch) if (!ch7xxx->quiet) { DRM_DEBUG("Unable to write register 0x%02x to %s:%d.\n", - addr, i2cbus->adapter.name, i2cbus->slave_addr); + addr, i2cbus->adapter.name, dvo->slave_addr); } return false; } static bool ch7xxx_init(struct intel_dvo_device *dvo, - struct intel_i2c_chan *i2cbus) + struct i2c_adapter *adapter) { /* this will detect the CH7xxx chip on the specified i2c bus */ struct ch7xxx_priv *ch7xxx; @@ -196,8 +198,7 @@ static bool ch7xxx_init(struct intel_dvo_device *dvo, if (ch7xxx == NULL) return false; - dvo->i2c_bus = i2cbus; - dvo->i2c_bus->slave_addr = dvo->slave_addr; + dvo->i2c_bus = adapter; dvo->dev_priv = ch7xxx; ch7xxx->quiet = true; @@ -207,7 +208,7 @@ static bool ch7xxx_init(struct intel_dvo_device *dvo, name = ch7xxx_get_id(vendor); if (!name) { DRM_DEBUG("ch7xxx not detected; got 0x%02x from %s slave %d.\n", - vendor, i2cbus->adapter.name, i2cbus->slave_addr); + vendor, adapter->name, dvo->slave_addr); goto out; } @@ -217,7 +218,7 @@ static bool ch7xxx_init(struct intel_dvo_device *dvo, if (device != CH7xxx_DID) { DRM_DEBUG("ch7xxx not detected; got 0x%02x from %s slave %d.\n", - vendor, i2cbus->adapter.name, i2cbus->slave_addr); + vendor, adapter->name, dvo->slave_addr); goto out; } diff --git a/drivers/gpu/drm/i915/dvo_ivch.c b/drivers/gpu/drm/i915/dvo_ivch.c index 0c8d375e8e3..aa176f9921f 100644 --- a/drivers/gpu/drm/i915/dvo_ivch.c +++ b/drivers/gpu/drm/i915/dvo_ivch.c @@ -169,13 +169,14 @@ static void ivch_dump_regs(struct intel_dvo_device *dvo); static bool ivch_read(struct intel_dvo_device *dvo, int addr, uint16_t *data) { struct ivch_priv *priv = dvo->dev_priv; - struct intel_i2c_chan *i2cbus = dvo->i2c_bus; + struct i2c_adapter *adapter = dvo->i2c_bus; + struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter); u8 out_buf[1]; u8 in_buf[2]; struct i2c_msg msgs[] = { { - .addr = i2cbus->slave_addr, + .addr = dvo->slave_addr, .flags = I2C_M_RD, .len = 0, }, @@ -186,7 +187,7 @@ static bool ivch_read(struct intel_dvo_device *dvo, int addr, uint16_t *data) .buf = out_buf, }, { - .addr = i2cbus->slave_addr, + .addr = dvo->slave_addr, .flags = I2C_M_RD | I2C_M_NOSTART, .len = 2, .buf = in_buf, @@ -202,7 +203,7 @@ static bool ivch_read(struct intel_dvo_device *dvo, int addr, uint16_t *data) if (!priv->quiet) { DRM_DEBUG("Unable to read register 0x%02x from %s:%02x.\n", - addr, i2cbus->adapter.name, i2cbus->slave_addr); + addr, i2cbus->adapter.name, dvo->slave_addr); } return false; } @@ -211,10 +212,11 @@ static bool ivch_read(struct intel_dvo_device *dvo, int addr, uint16_t *data) static bool ivch_write(struct intel_dvo_device *dvo, int addr, uint16_t data) { struct ivch_priv *priv = dvo->dev_priv; - struct intel_i2c_chan *i2cbus = dvo->i2c_bus; + struct i2c_adapter *adapter = dvo->i2c_bus; + struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter); u8 out_buf[3]; struct i2c_msg msg = { - .addr = i2cbus->slave_addr, + .addr = dvo->slave_addr, .flags = 0, .len = 3, .buf = out_buf, @@ -229,7 +231,7 @@ static bool ivch_write(struct intel_dvo_device *dvo, int addr, uint16_t data) if (!priv->quiet) { DRM_DEBUG("Unable to write register 0x%02x to %s:%d.\n", - addr, i2cbus->adapter.name, i2cbus->slave_addr); + addr, i2cbus->adapter.name, dvo->slave_addr); } return false; @@ -237,7 +239,7 @@ static bool ivch_write(struct intel_dvo_device *dvo, int addr, uint16_t data) /** Probes the given bus and slave address for an ivch */ static bool ivch_init(struct intel_dvo_device *dvo, - struct intel_i2c_chan *i2cbus) + struct i2c_adapter *adapter) { struct ivch_priv *priv; uint16_t temp; @@ -246,8 +248,7 @@ static bool ivch_init(struct intel_dvo_device *dvo, if (priv == NULL) return false; - dvo->i2c_bus = i2cbus; - dvo->i2c_bus->slave_addr = dvo->slave_addr; + dvo->i2c_bus = adapter; dvo->dev_priv = priv; priv->quiet = true; diff --git a/drivers/gpu/drm/i915/dvo_sil164.c b/drivers/gpu/drm/i915/dvo_sil164.c index 033a4bb070b..e1c1f7341e5 100644 --- a/drivers/gpu/drm/i915/dvo_sil164.c +++ b/drivers/gpu/drm/i915/dvo_sil164.c @@ -76,19 +76,20 @@ struct sil164_priv { static bool sil164_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch) { struct sil164_priv *sil = dvo->dev_priv; - struct intel_i2c_chan *i2cbus = dvo->i2c_bus; + struct i2c_adapter *adapter = dvo->i2c_bus; + struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter); u8 out_buf[2]; u8 in_buf[2]; struct i2c_msg msgs[] = { { - .addr = i2cbus->slave_addr, + .addr = dvo->slave_addr, .flags = 0, .len = 1, .buf = out_buf, }, { - .addr = i2cbus->slave_addr, + .addr = dvo->slave_addr, .flags = I2C_M_RD, .len = 1, .buf = in_buf, @@ -105,7 +106,7 @@ static bool sil164_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch) if (!sil->quiet) { DRM_DEBUG("Unable to read register 0x%02x from %s:%02x.\n", - addr, i2cbus->adapter.name, i2cbus->slave_addr); + addr, i2cbus->adapter.name, dvo->slave_addr); } return false; } @@ -113,10 +114,11 @@ static bool sil164_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch) static bool sil164_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch) { struct sil164_priv *sil= dvo->dev_priv; - struct intel_i2c_chan *i2cbus = dvo->i2c_bus; + struct i2c_adapter *adapter = dvo->i2c_bus; + struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter); uint8_t out_buf[2]; struct i2c_msg msg = { - .addr = i2cbus->slave_addr, + .addr = dvo->slave_addr, .flags = 0, .len = 2, .buf = out_buf, @@ -130,7 +132,7 @@ static bool sil164_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch) if (!sil->quiet) { DRM_DEBUG("Unable to write register 0x%02x to %s:%d.\n", - addr, i2cbus->adapter.name, i2cbus->slave_addr); + addr, i2cbus->adapter.name, dvo->slave_addr); } return false; @@ -138,7 +140,7 @@ static bool sil164_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch) /* Silicon Image 164 driver for chip on i2c bus */ static bool sil164_init(struct intel_dvo_device *dvo, - struct intel_i2c_chan *i2cbus) + struct i2c_adapter *adapter) { /* this will detect the SIL164 chip on the specified i2c bus */ struct sil164_priv *sil; @@ -148,8 +150,7 @@ static bool sil164_init(struct intel_dvo_device *dvo, if (sil == NULL) return false; - dvo->i2c_bus = i2cbus; - dvo->i2c_bus->slave_addr = dvo->slave_addr; + dvo->i2c_bus = adapter; dvo->dev_priv = sil; sil->quiet = true; @@ -158,7 +159,7 @@ static bool sil164_init(struct intel_dvo_device *dvo, if (ch != (SIL164_VID & 0xff)) { DRM_DEBUG("sil164 not detected got %d: from %s Slave %d.\n", - ch, i2cbus->adapter.name, i2cbus->slave_addr); + ch, adapter->name, dvo->slave_addr); goto out; } @@ -167,7 +168,7 @@ static bool sil164_init(struct intel_dvo_device *dvo, if (ch != (SIL164_DID & 0xff)) { DRM_DEBUG("sil164 not detected got %d: from %s Slave %d.\n", - ch, i2cbus->adapter.name, i2cbus->slave_addr); + ch, adapter->name, dvo->slave_addr); goto out; } sil->quiet = false; diff --git a/drivers/gpu/drm/i915/dvo_tfp410.c b/drivers/gpu/drm/i915/dvo_tfp410.c index 207fda806eb..9ecc907384e 100644 --- a/drivers/gpu/drm/i915/dvo_tfp410.c +++ b/drivers/gpu/drm/i915/dvo_tfp410.c @@ -101,19 +101,20 @@ struct tfp410_priv { static bool tfp410_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch) { struct tfp410_priv *tfp = dvo->dev_priv; - struct intel_i2c_chan *i2cbus = dvo->i2c_bus; + struct i2c_adapter *adapter = dvo->i2c_bus; + struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter); u8 out_buf[2]; u8 in_buf[2]; struct i2c_msg msgs[] = { { - .addr = i2cbus->slave_addr, + .addr = dvo->slave_addr, .flags = 0, .len = 1, .buf = out_buf, }, { - .addr = i2cbus->slave_addr, + .addr = dvo->slave_addr, .flags = I2C_M_RD, .len = 1, .buf = in_buf, @@ -130,7 +131,7 @@ static bool tfp410_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch) if (!tfp->quiet) { DRM_DEBUG("Unable to read register 0x%02x from %s:%02x.\n", - addr, i2cbus->adapter.name, i2cbus->slave_addr); + addr, i2cbus->adapter.name, dvo->slave_addr); } return false; } @@ -138,10 +139,11 @@ static bool tfp410_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch) static bool tfp410_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch) { struct tfp410_priv *tfp = dvo->dev_priv; - struct intel_i2c_chan *i2cbus = dvo->i2c_bus; + struct i2c_adapter *adapter = dvo->i2c_bus; + struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter); uint8_t out_buf[2]; struct i2c_msg msg = { - .addr = i2cbus->slave_addr, + .addr = dvo->slave_addr, .flags = 0, .len = 2, .buf = out_buf, @@ -155,7 +157,7 @@ static bool tfp410_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch) if (!tfp->quiet) { DRM_DEBUG("Unable to write register 0x%02x to %s:%d.\n", - addr, i2cbus->adapter.name, i2cbus->slave_addr); + addr, i2cbus->adapter.name, dvo->slave_addr); } return false; @@ -174,7 +176,7 @@ static int tfp410_getid(struct intel_dvo_device *dvo, int addr) /* Ti TFP410 driver for chip on i2c bus */ static bool tfp410_init(struct intel_dvo_device *dvo, - struct intel_i2c_chan *i2cbus) + struct i2c_adapter *adapter) { /* this will detect the tfp410 chip on the specified i2c bus */ struct tfp410_priv *tfp; @@ -184,20 +186,19 @@ static bool tfp410_init(struct intel_dvo_device *dvo, if (tfp == NULL) return false; - dvo->i2c_bus = i2cbus; - dvo->i2c_bus->slave_addr = dvo->slave_addr; + dvo->i2c_bus = adapter; dvo->dev_priv = tfp; tfp->quiet = true; if ((id = tfp410_getid(dvo, TFP410_VID_LO)) != TFP410_VID) { DRM_DEBUG("tfp410 not detected got VID %X: from %s Slave %d.\n", - id, i2cbus->adapter.name, i2cbus->slave_addr); + id, adapter->name, dvo->slave_addr); goto out; } if ((id = tfp410_getid(dvo, TFP410_DID_LO)) != TFP410_DID) { DRM_DEBUG("tfp410 not detected got DID %X: from %s Slave %d.\n", - id, i2cbus->adapter.name, i2cbus->slave_addr); + id, adapter->name, dvo->slave_addr); goto out; } tfp->quiet = false; diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index cd4b9c5f715..d89a2fed35a 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -65,7 +65,6 @@ struct intel_i2c_chan { u32 reg; /* GPIO reg */ struct i2c_adapter adapter; struct i2c_algo_bit_data algo; - u8 slave_addr; }; struct intel_framebuffer { @@ -79,8 +78,8 @@ struct intel_output { struct drm_encoder enc; int type; - struct intel_i2c_chan *i2c_bus; /* for control functions */ - struct intel_i2c_chan *ddc_bus; /* for DDC only stuff */ + struct i2c_adapter *i2c_bus; + struct i2c_adapter *ddc_bus; bool load_detect_temp; bool needs_tv_clock; void *dev_priv; @@ -104,9 +103,9 @@ struct intel_crtc { #define enc_to_intel_output(x) container_of(x, struct intel_output, enc) #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base) -struct intel_i2c_chan *intel_i2c_create(struct drm_device *dev, const u32 reg, - const char *name); -void intel_i2c_destroy(struct intel_i2c_chan *chan); +struct i2c_adapter *intel_i2c_create(struct drm_device *dev, const u32 reg, + const char *name); +void intel_i2c_destroy(struct i2c_adapter *adapter); int intel_ddc_get_modes(struct intel_output *intel_output); extern bool intel_ddc_probe(struct intel_output *intel_output); void intel_i2c_quirk_set(struct drm_device *dev, bool enable); diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c index 1ee3007d6ec..13bff20930e 100644 --- a/drivers/gpu/drm/i915/intel_dvo.c +++ b/drivers/gpu/drm/i915/intel_dvo.c @@ -384,10 +384,9 @@ void intel_dvo_init(struct drm_device *dev) { struct intel_output *intel_output; struct intel_dvo_device *dvo; - struct intel_i2c_chan *i2cbus = NULL; + struct i2c_adapter *i2cbus = NULL; int ret = 0; int i; - int gpio_inited = 0; int encoder_type = DRM_MODE_ENCODER_NONE; intel_output = kzalloc (sizeof(struct intel_output), GFP_KERNEL); if (!intel_output) @@ -420,14 +419,11 @@ void intel_dvo_init(struct drm_device *dev) * It appears that everything is on GPIOE except for panels * on i830 laptops, which are on GPIOB (DVOA). */ - if (gpio_inited != gpio) { - if (i2cbus != NULL) - intel_i2c_destroy(i2cbus); - if (!(i2cbus = intel_i2c_create(dev, gpio, - gpio == GPIOB ? "DVOI2C_B" : "DVOI2C_E"))) { - continue; - } - gpio_inited = gpio; + if (i2cbus != NULL) + intel_i2c_destroy(i2cbus); + if (!(i2cbus = intel_i2c_create(dev, gpio, + gpio == GPIOB ? "DVOI2C_B" : "DVOI2C_E"))) { + continue; } if (dvo->dev_ops!= NULL) diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 2495359ea8d..fbe96005fa1 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -139,7 +139,7 @@ intel_hdmi_edid_detect(struct drm_connector *connector) enum drm_connector_status status = connector_status_disconnected; edid = drm_get_edid(&intel_output->base, - &intel_output->ddc_bus->adapter); + intel_output->ddc_bus); hdmi_priv->has_hdmi_sink = false; if (edid) { if (edid->digital) { diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c index f7061f68d05..62b8bead765 100644 --- a/drivers/gpu/drm/i915/intel_i2c.c +++ b/drivers/gpu/drm/i915/intel_i2c.c @@ -124,6 +124,7 @@ static void set_data(void *data, int state_high) * @output: driver specific output device * @reg: GPIO reg to use * @name: name for this bus + * @slave_addr: slave address (if fixed) * * Creates and registers a new i2c bus with the Linux i2c layer, for use * in output probing and control (e.g. DDC or SDVO control functions). @@ -139,8 +140,8 @@ static void set_data(void *data, int state_high) * %GPIOH * see PRM for details on how these different busses are used. */ -struct intel_i2c_chan *intel_i2c_create(struct drm_device *dev, const u32 reg, - const char *name) +struct i2c_adapter *intel_i2c_create(struct drm_device *dev, const u32 reg, + const char *name) { struct intel_i2c_chan *chan; @@ -174,7 +175,7 @@ struct intel_i2c_chan *intel_i2c_create(struct drm_device *dev, const u32 reg, intel_i2c_quirk_set(dev, false); udelay(20); - return chan; + return &chan->adapter; out_free: kfree(chan); @@ -187,11 +188,16 @@ out_free: * * Unregister the adapter from the i2c layer, then free the structure. */ -void intel_i2c_destroy(struct intel_i2c_chan *chan) +void intel_i2c_destroy(struct i2c_adapter *adapter) { - if (!chan) + struct intel_i2c_chan *chan; + + if (!adapter) return; + chan = container_of(adapter, + struct intel_i2c_chan, + adapter); i2c_del_adapter(&chan->adapter); kfree(chan); } diff --git a/drivers/gpu/drm/i915/intel_modes.c b/drivers/gpu/drm/i915/intel_modes.c index e0910fefce8..67e2f4632a2 100644 --- a/drivers/gpu/drm/i915/intel_modes.c +++ b/drivers/gpu/drm/i915/intel_modes.c @@ -53,10 +53,9 @@ bool intel_ddc_probe(struct intel_output *intel_output) } }; - intel_i2c_quirk_set(intel_output->ddc_bus->drm_dev, true); - ret = i2c_transfer(&intel_output->ddc_bus->adapter, msgs, 2); - intel_i2c_quirk_set(intel_output->ddc_bus->drm_dev, false); - + intel_i2c_quirk_set(intel_output->base.dev, true); + ret = i2c_transfer(intel_output->ddc_bus, msgs, 2); + intel_i2c_quirk_set(intel_output->base.dev, false); if (ret == 2) return true; @@ -74,10 +73,9 @@ int intel_ddc_get_modes(struct intel_output *intel_output) struct edid *edid; int ret = 0; - intel_i2c_quirk_set(intel_output->ddc_bus->drm_dev, true); - edid = drm_get_edid(&intel_output->base, - &intel_output->ddc_bus->adapter); - intel_i2c_quirk_set(intel_output->ddc_bus->drm_dev, false); + intel_i2c_quirk_set(intel_output->base.dev, true); + edid = drm_get_edid(&intel_output->base, intel_output->ddc_bus); + intel_i2c_quirk_set(intel_output->base.dev, false); if (edid) { drm_mode_connector_update_edid_property(&intel_output->base, edid); diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index 9a00adb3a50..13c39c827eb 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -38,8 +38,8 @@ #undef SDVO_DEBUG #define I915_SDVO "i915_sdvo" struct intel_sdvo_priv { - struct intel_i2c_chan *i2c_bus; - int slaveaddr; + struct i2c_adapter *i2c_bus; + u8 slave_addr; /* Register for the SDVO device: SDVOB or SDVOC */ int output_device; @@ -146,13 +146,13 @@ static bool intel_sdvo_read_byte(struct intel_output *intel_output, u8 addr, struct i2c_msg msgs[] = { { - .addr = sdvo_priv->i2c_bus->slave_addr, + .addr = sdvo_priv->slave_addr >> 1, .flags = 0, .len = 1, .buf = out_buf, }, { - .addr = sdvo_priv->i2c_bus->slave_addr, + .addr = sdvo_priv->slave_addr >> 1, .flags = I2C_M_RD, .len = 1, .buf = buf, @@ -162,7 +162,7 @@ static bool intel_sdvo_read_byte(struct intel_output *intel_output, u8 addr, out_buf[0] = addr; out_buf[1] = 0; - if ((ret = i2c_transfer(&sdvo_priv->i2c_bus->adapter, msgs, 2)) == 2) + if ((ret = i2c_transfer(sdvo_priv->i2c_bus, msgs, 2)) == 2) { *ch = buf[0]; return true; @@ -175,10 +175,11 @@ static bool intel_sdvo_read_byte(struct intel_output *intel_output, u8 addr, static bool intel_sdvo_write_byte(struct intel_output *intel_output, int addr, u8 ch) { + struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv; u8 out_buf[2]; struct i2c_msg msgs[] = { { - .addr = intel_output->i2c_bus->slave_addr, + .addr = sdvo_priv->slave_addr >> 1, .flags = 0, .len = 2, .buf = out_buf, @@ -188,7 +189,7 @@ static bool intel_sdvo_write_byte(struct intel_output *intel_output, int addr, out_buf[0] = addr; out_buf[1] = ch; - if (i2c_transfer(&intel_output->i2c_bus->adapter, msgs, 1) == 1) + if (i2c_transfer(intel_output->i2c_bus, msgs, 1) == 1) { return true; } @@ -1371,7 +1372,7 @@ intel_sdvo_hdmi_sink_detect(struct drm_connector *connector) intel_sdvo_set_control_bus_switch(intel_output, sdvo_priv->ddc_bus); edid = drm_get_edid(&intel_output->base, - &intel_output->ddc_bus->adapter); + intel_output->ddc_bus); if (edid != NULL) { sdvo_priv->is_hdmi = drm_detect_hdmi_monitor(edid); kfree(edid); @@ -1709,7 +1710,7 @@ intel_sdvo_chan_to_intel_output(struct intel_i2c_chan *chan) list_for_each_entry(connector, &dev->mode_config.connector_list, head) { - if (to_intel_output(connector)->ddc_bus == chan) { + if (to_intel_output(connector)->ddc_bus == &chan->adapter) { intel_output = to_intel_output(connector); break; } @@ -1723,7 +1724,7 @@ static int intel_sdvo_master_xfer(struct i2c_adapter *i2c_adap, struct intel_output *intel_output; struct intel_sdvo_priv *sdvo_priv; struct i2c_algo_bit_data *algo_data; - struct i2c_algorithm *algo; + const struct i2c_algorithm *algo; algo_data = (struct i2c_algo_bit_data *)i2c_adap->algo_data; intel_output = @@ -1733,7 +1734,7 @@ static int intel_sdvo_master_xfer(struct i2c_adapter *i2c_adap, return -EINVAL; sdvo_priv = intel_output->dev_priv; - algo = (struct i2c_algorithm *)intel_output->i2c_bus->adapter.algo; + algo = intel_output->i2c_bus->algo; intel_sdvo_set_control_bus_switch(intel_output, sdvo_priv->ddc_bus); return algo->master_xfer(i2c_adap, msgs, num); @@ -1785,12 +1786,13 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device) struct drm_connector *connector; struct intel_output *intel_output; struct intel_sdvo_priv *sdvo_priv; - struct intel_i2c_chan *i2cbus = NULL; - struct intel_i2c_chan *ddcbus = NULL; + struct i2c_adapter *i2cbus = NULL; + struct i2c_adapter *ddcbus = NULL; + int connector_type; u8 ch[0x40]; int i; - int encoder_type, output_id; + int encoder_type; u8 slave_addr; intel_output = kcalloc(sizeof(struct intel_output)+sizeof(struct intel_sdvo_priv), 1, GFP_KERNEL); @@ -1802,25 +1804,23 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device) intel_output->type = INTEL_OUTPUT_SDVO; /* setup the DDC bus. */ - if (output_device == SDVOB) + if (output_device == SDVOB) { i2cbus = intel_i2c_create(dev, GPIOE, "SDVOCTRL_E for SDVOB"); - else + slave_addr = 0x38; + } else { i2cbus = intel_i2c_create(dev, GPIOE, "SDVOCTRL_E for SDVOC"); - + slave_addr = 0x39; + } + if (!i2cbus) goto err_inteloutput; slave_addr = intel_sdvo_get_slave_addr(dev, output_device); sdvo_priv->i2c_bus = i2cbus; + sdvo_priv->slave_addr = slave_addr; - if (output_device == SDVOB) { - output_id = 1; - } else { - output_id = 2; - } - sdvo_priv->i2c_bus->slave_addr = slave_addr >> 1; sdvo_priv->output_device = output_device; - intel_output->i2c_bus = i2cbus; + intel_output->i2c_bus = sdvo_priv->i2c_bus; intel_output->dev_priv = sdvo_priv; /* Read the regs to test if we can talk to the device */ @@ -1843,8 +1843,8 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device) goto err_i2c; intel_sdvo_i2c_bit_algo.functionality = - intel_output->i2c_bus->adapter.algo->functionality; - ddcbus->adapter.algo = &intel_sdvo_i2c_bit_algo; + intel_output->i2c_bus->algo->functionality; + ddcbus->algo = &intel_sdvo_i2c_bit_algo; intel_output->ddc_bus = ddcbus; /* In defaut case sdvo lvds is false */ -- cgit v1.2.3 From 308cd3a2e505b0d15f2852e8db5d648b60a6313b Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Sun, 14 Jun 2009 11:56:18 -0700 Subject: drm/i915: Clean up SDVO i2c handling Eliminate the copy of i2c_bus in sdvo_priv. Eliminate local copies of i2c_bus and ddcbus. Eliminate unused settings of slave_addr. Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_sdvo.c | 54 +++++++++++++++------------------------ 1 file changed, 21 insertions(+), 33 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index 13c39c827eb..f03473779fe 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -38,7 +38,6 @@ #undef SDVO_DEBUG #define I915_SDVO "i915_sdvo" struct intel_sdvo_priv { - struct i2c_adapter *i2c_bus; u8 slave_addr; /* Register for the SDVO device: SDVOB or SDVOC */ @@ -162,7 +161,7 @@ static bool intel_sdvo_read_byte(struct intel_output *intel_output, u8 addr, out_buf[0] = addr; out_buf[1] = 0; - if ((ret = i2c_transfer(sdvo_priv->i2c_bus, msgs, 2)) == 2) + if ((ret = i2c_transfer(intel_output->i2c_bus, msgs, 2)) == 2) { *ch = buf[0]; return true; @@ -1370,7 +1369,6 @@ intel_sdvo_hdmi_sink_detect(struct drm_connector *connector) struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv; struct edid *edid = NULL; - intel_sdvo_set_control_bus_switch(intel_output, sdvo_priv->ddc_bus); edid = drm_get_edid(&intel_output->base, intel_output->ddc_bus); if (edid != NULL) { @@ -1550,7 +1548,6 @@ static void intel_sdvo_get_tv_modes(struct drm_connector *connector) static void intel_sdvo_get_lvds_modes(struct drm_connector *connector) { struct intel_output *intel_output = to_intel_output(connector); - struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv; struct drm_i915_private *dev_priv = connector->dev->dev_private; /* @@ -1558,8 +1555,6 @@ static void intel_sdvo_get_lvds_modes(struct drm_connector *connector) * Assume that the preferred modes are * arranged in priority order. */ - /* set the bus switch and get the modes */ - intel_sdvo_set_control_bus_switch(intel_output, sdvo_priv->ddc_bus); intel_ddc_get_modes(intel_output); if (list_empty(&connector->probed_modes) == false) return; @@ -1786,14 +1781,11 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device) struct drm_connector *connector; struct intel_output *intel_output; struct intel_sdvo_priv *sdvo_priv; - struct i2c_adapter *i2cbus = NULL; - struct i2c_adapter *ddcbus = NULL; int connector_type; u8 ch[0x40]; int i; int encoder_type; - u8 slave_addr; intel_output = kcalloc(sizeof(struct intel_output)+sizeof(struct intel_sdvo_priv), 1, GFP_KERNEL); if (!intel_output) { @@ -1801,27 +1793,24 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device) } sdvo_priv = (struct intel_sdvo_priv *)(intel_output + 1); + sdvo_priv->output_device = output_device; + + intel_output->dev_priv = sdvo_priv; intel_output->type = INTEL_OUTPUT_SDVO; /* setup the DDC bus. */ - if (output_device == SDVOB) { - i2cbus = intel_i2c_create(dev, GPIOE, "SDVOCTRL_E for SDVOB"); - slave_addr = 0x38; - } else { - i2cbus = intel_i2c_create(dev, GPIOE, "SDVOCTRL_E for SDVOC"); - slave_addr = 0x39; - } - - if (!i2cbus) + if (output_device == SDVOB) + intel_output->i2c_bus = intel_i2c_create(dev, GPIOE, "SDVOCTRL_E for SDVOB"); + else + intel_output->i2c_bus = intel_i2c_create(dev, GPIOE, "SDVOCTRL_E for SDVOC"); + + if (!intel_output->i2c_bus) goto err_inteloutput; - slave_addr = intel_sdvo_get_slave_addr(dev, output_device); - sdvo_priv->i2c_bus = i2cbus; - sdvo_priv->slave_addr = slave_addr; + sdvo_priv->slave_addr = intel_sdvo_get_slave_addr(dev, output_device); - sdvo_priv->output_device = output_device; - intel_output->i2c_bus = sdvo_priv->i2c_bus; - intel_output->dev_priv = sdvo_priv; + /* Save the bit-banging i2c functionality for use by the DDC wrapper */ + intel_sdvo_i2c_bit_algo.functionality = intel_output->i2c_bus->algo->functionality; /* Read the regs to test if we can talk to the device */ for (i = 0; i < 0x40; i++) { @@ -1835,17 +1824,15 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device) /* setup the DDC bus. */ if (output_device == SDVOB) - ddcbus = intel_i2c_create(dev, GPIOE, "SDVOB DDC BUS"); + intel_output->ddc_bus = intel_i2c_create(dev, GPIOE, "SDVOB DDC BUS"); else - ddcbus = intel_i2c_create(dev, GPIOE, "SDVOC DDC BUS"); + intel_output->ddc_bus = intel_i2c_create(dev, GPIOE, "SDVOC DDC BUS"); - if (ddcbus == NULL) + if (intel_output->ddc_bus == NULL) goto err_i2c; - intel_sdvo_i2c_bit_algo.functionality = - intel_output->i2c_bus->algo->functionality; - ddcbus->algo = &intel_sdvo_i2c_bit_algo; - intel_output->ddc_bus = ddcbus; + /* Wrap with our custom algo which switches to DDC mode */ + intel_output->ddc_bus->algo = &intel_sdvo_i2c_bit_algo; /* In defaut case sdvo lvds is false */ sdvo_priv->is_lvds = false; @@ -1965,9 +1952,10 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device) return true; err_i2c: - if (ddcbus != NULL) + if (intel_output->ddc_bus != NULL) intel_i2c_destroy(intel_output->ddc_bus); - intel_i2c_destroy(intel_output->i2c_bus); + if (intel_output->i2c_bus != NULL) + intel_i2c_destroy(intel_output->i2c_bus); err_inteloutput: kfree(intel_output); -- cgit v1.2.3 From c31c4ba3437d98efa19710e30d694a1cfdf87aa5 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Wed, 6 May 2009 11:48:58 -0700 Subject: drm/i915: add per-output hotplug callback for KMS This allows each output to deal with plug/unplug events as needed. Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/i915_irq.c | 12 +++++++++++- drivers/gpu/drm/i915/intel_drv.h | 1 + 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index b86b7b7130c..228546f6eaa 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -232,7 +232,17 @@ static void i915_hotplug_work_func(struct work_struct *work) drm_i915_private_t *dev_priv = container_of(work, drm_i915_private_t, hotplug_work); struct drm_device *dev = dev_priv->dev; - + struct drm_mode_config *mode_config = &dev->mode_config; + struct drm_connector *connector; + + if (mode_config->num_connector) { + list_for_each_entry(connector, &mode_config->connector_list, head) { + struct intel_output *intel_output = to_intel_output(connector); + + if (intel_output->hot_plug) + (*intel_output->hot_plug) (intel_output); + } + } /* Just fire off a uevent and let userspace tell us what to do */ drm_sysfs_hotplug_event(dev); } diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index d89a2fed35a..c5858792c80 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -83,6 +83,7 @@ struct intel_output { bool load_detect_temp; bool needs_tv_clock; void *dev_priv; + void (*hot_plug)(struct intel_output *); }; struct intel_crtc { -- cgit v1.2.3 From a4fc5ed69817c73e32571ad7837bb707f9890009 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Tue, 7 Apr 2009 16:16:42 -0700 Subject: drm/i915: Add Display Port support Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/Makefile | 2 + drivers/gpu/drm/i915/i915_drv.h | 12 + drivers/gpu/drm/i915/i915_suspend.c | 34 +- drivers/gpu/drm/i915/intel_display.c | 107 +++- drivers/gpu/drm/i915/intel_dp.c | 1098 ++++++++++++++++++++++++++++++++++ drivers/gpu/drm/i915/intel_dp.h | 144 +++++ drivers/gpu/drm/i915/intel_dp_i2c.c | 272 +++++++++ drivers/gpu/drm/i915/intel_drv.h | 5 + 8 files changed, 1668 insertions(+), 6 deletions(-) create mode 100644 drivers/gpu/drm/i915/intel_dp.c create mode 100644 drivers/gpu/drm/i915/intel_dp.h create mode 100644 drivers/gpu/drm/i915/intel_dp_i2c.c diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index 51c5a050aa7..30d6b99fb30 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -13,6 +13,8 @@ i915-y := i915_drv.o i915_dma.o i915_irq.o i915_mem.o \ intel_crt.o \ intel_lvds.o \ intel_bios.o \ + intel_dp.o \ + intel_dp_i2c.o \ intel_hdmi.o \ intel_sdvo.o \ intel_modes.o \ diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 7a84f04e843..bb4c2d387b6 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -306,6 +306,17 @@ typedef struct drm_i915_private { u32 saveCURBPOS; u32 saveCURBBASE; u32 saveCURSIZE; + u32 saveDP_B; + u32 saveDP_C; + u32 saveDP_D; + u32 savePIPEA_GMCH_DATA_M; + u32 savePIPEB_GMCH_DATA_M; + u32 savePIPEA_GMCH_DATA_N; + u32 savePIPEB_GMCH_DATA_N; + u32 savePIPEA_DP_LINK_M; + u32 savePIPEB_DP_LINK_M; + u32 savePIPEA_DP_LINK_N; + u32 savePIPEB_DP_LINK_N; struct { struct drm_mm gtt_space; @@ -857,6 +868,7 @@ extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller); #define HAS_128_BYTE_Y_TILING(dev) (IS_I9XX(dev) && !(IS_I915G(dev) || \ IS_I915GM(dev))) #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_IGDNG(dev)) +#define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_IGDNG(dev)) #define I915_HAS_HOTPLUG(dev) (IS_I945G(dev) || IS_I945GM(dev) || IS_I965G(dev)) #define PRIMARY_RINGBUFFER_SIZE (128*1024) diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c index a98e2831ed3..8d8e083d14a 100644 --- a/drivers/gpu/drm/i915/i915_suspend.c +++ b/drivers/gpu/drm/i915/i915_suspend.c @@ -322,6 +322,20 @@ int i915_save_state(struct drm_device *dev) dev_priv->savePP_OFF_DELAYS = I915_READ(PP_OFF_DELAYS); dev_priv->savePP_DIVISOR = I915_READ(PP_DIVISOR); + /* Display Port state */ + if (SUPPORTS_INTEGRATED_DP(dev)) { + dev_priv->saveDP_B = I915_READ(DP_B); + dev_priv->saveDP_C = I915_READ(DP_C); + dev_priv->saveDP_D = I915_READ(DP_D); + dev_priv->savePIPEA_GMCH_DATA_M = I915_READ(PIPEA_GMCH_DATA_M); + dev_priv->savePIPEB_GMCH_DATA_M = I915_READ(PIPEB_GMCH_DATA_M); + dev_priv->savePIPEA_GMCH_DATA_N = I915_READ(PIPEA_GMCH_DATA_N); + dev_priv->savePIPEB_GMCH_DATA_N = I915_READ(PIPEB_GMCH_DATA_N); + dev_priv->savePIPEA_DP_LINK_M = I915_READ(PIPEA_DP_LINK_M); + dev_priv->savePIPEB_DP_LINK_M = I915_READ(PIPEB_DP_LINK_M); + dev_priv->savePIPEA_DP_LINK_N = I915_READ(PIPEA_DP_LINK_N); + dev_priv->savePIPEB_DP_LINK_N = I915_READ(PIPEB_DP_LINK_N); + } /* FIXME: save TV & SDVO state */ /* FBC state */ @@ -404,7 +418,19 @@ int i915_restore_state(struct drm_device *dev) for (i = 0; i < 8; i++) I915_WRITE(FENCE_REG_945_8 + (i * 4), dev_priv->saveFENCE[i+8]); } - + + /* Display port ratios (must be done before clock is set) */ + if (SUPPORTS_INTEGRATED_DP(dev)) { + I915_WRITE(PIPEA_GMCH_DATA_M, dev_priv->savePIPEA_GMCH_DATA_M); + I915_WRITE(PIPEB_GMCH_DATA_M, dev_priv->savePIPEB_GMCH_DATA_M); + I915_WRITE(PIPEA_GMCH_DATA_N, dev_priv->savePIPEA_GMCH_DATA_N); + I915_WRITE(PIPEB_GMCH_DATA_N, dev_priv->savePIPEB_GMCH_DATA_N); + I915_WRITE(PIPEA_DP_LINK_M, dev_priv->savePIPEA_DP_LINK_M); + I915_WRITE(PIPEB_DP_LINK_M, dev_priv->savePIPEB_DP_LINK_M); + I915_WRITE(PIPEA_DP_LINK_N, dev_priv->savePIPEA_DP_LINK_N); + I915_WRITE(PIPEB_DP_LINK_N, dev_priv->savePIPEB_DP_LINK_N); + } + /* Pipe & plane A info */ /* Prime the clock */ if (dev_priv->saveDPLL_A & DPLL_VCO_ENABLE) { @@ -518,6 +544,12 @@ int i915_restore_state(struct drm_device *dev) I915_WRITE(PP_DIVISOR, dev_priv->savePP_DIVISOR); I915_WRITE(PP_CONTROL, dev_priv->savePP_CONTROL); + /* Display Port state */ + if (SUPPORTS_INTEGRATED_DP(dev)) { + I915_WRITE(DP_B, dev_priv->saveDP_B); + I915_WRITE(DP_C, dev_priv->saveDP_C); + I915_WRITE(DP_D, dev_priv->saveDP_D); + } /* FIXME: restore TV & SDVO state */ /* FBC info */ diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 3e1c7816211..5af55aa0d7a 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -29,6 +29,7 @@ #include "intel_drv.h" #include "i915_drm.h" #include "i915_drv.h" +#include "intel_dp.h" #include "drm_crtc_helper.h" @@ -135,10 +136,11 @@ struct intel_limit { #define INTEL_LIMIT_G4X_HDMI_DAC 5 #define INTEL_LIMIT_G4X_SINGLE_CHANNEL_LVDS 6 #define INTEL_LIMIT_G4X_DUAL_CHANNEL_LVDS 7 -#define INTEL_LIMIT_IGD_SDVO_DAC 8 -#define INTEL_LIMIT_IGD_LVDS 9 -#define INTEL_LIMIT_IGDNG_SDVO_DAC 10 -#define INTEL_LIMIT_IGDNG_LVDS 11 +#define INTEL_LIMIT_G4X_DISPLAY_PORT 8 +#define INTEL_LIMIT_IGD_SDVO_DAC 9 +#define INTEL_LIMIT_IGD_LVDS 10 +#define INTEL_LIMIT_IGDNG_SDVO_DAC 11 +#define INTEL_LIMIT_IGDNG_LVDS 12 /*The parameter is for SDVO on G4x platform*/ #define G4X_DOT_SDVO_MIN 25000 @@ -218,6 +220,25 @@ struct intel_limit { #define G4X_P2_DUAL_CHANNEL_LVDS_FAST 7 #define G4X_P2_DUAL_CHANNEL_LVDS_LIMIT 0 +/*The parameter is for DISPLAY PORT on G4x platform*/ +#define G4X_DOT_DISPLAY_PORT_MIN 161670 +#define G4X_DOT_DISPLAY_PORT_MAX 227000 +#define G4X_N_DISPLAY_PORT_MIN 1 +#define G4X_N_DISPLAY_PORT_MAX 2 +#define G4X_M_DISPLAY_PORT_MIN 97 +#define G4X_M_DISPLAY_PORT_MAX 108 +#define G4X_M1_DISPLAY_PORT_MIN 0x10 +#define G4X_M1_DISPLAY_PORT_MAX 0x12 +#define G4X_M2_DISPLAY_PORT_MIN 0x05 +#define G4X_M2_DISPLAY_PORT_MAX 0x06 +#define G4X_P_DISPLAY_PORT_MIN 10 +#define G4X_P_DISPLAY_PORT_MAX 20 +#define G4X_P1_DISPLAY_PORT_MIN 1 +#define G4X_P1_DISPLAY_PORT_MAX 2 +#define G4X_P2_DISPLAY_PORT_SLOW 10 +#define G4X_P2_DISPLAY_PORT_FAST 10 +#define G4X_P2_DISPLAY_PORT_LIMIT 0 + /* IGDNG */ /* as we calculate clock using (register_value + 2) for N/M1/M2, so here the range value for them is (actual_value-2). @@ -256,6 +277,10 @@ static bool intel_igdng_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, int target, int refclk, intel_clock_t *best_clock); +static bool +intel_find_pll_g4x_dp(const intel_limit_t *, struct drm_crtc *crtc, + int target, int refclk, intel_clock_t *best_clock); + static const intel_limit_t intel_limits[] = { { /* INTEL_LIMIT_I8XX_DVO_DAC */ .dot = { .min = I8XX_DOT_MIN, .max = I8XX_DOT_MAX }, @@ -389,6 +414,28 @@ static const intel_limit_t intel_limits[] = { }, .find_pll = intel_g4x_find_best_PLL, }, + { /* INTEL_LIMIT_G4X_DISPLAY_PORT */ + .dot = { .min = G4X_DOT_DISPLAY_PORT_MIN, + .max = G4X_DOT_DISPLAY_PORT_MAX }, + .vco = { .min = G4X_VCO_MIN, + .max = G4X_VCO_MAX}, + .n = { .min = G4X_N_DISPLAY_PORT_MIN, + .max = G4X_N_DISPLAY_PORT_MAX }, + .m = { .min = G4X_M_DISPLAY_PORT_MIN, + .max = G4X_M_DISPLAY_PORT_MAX }, + .m1 = { .min = G4X_M1_DISPLAY_PORT_MIN, + .max = G4X_M1_DISPLAY_PORT_MAX }, + .m2 = { .min = G4X_M2_DISPLAY_PORT_MIN, + .max = G4X_M2_DISPLAY_PORT_MAX }, + .p = { .min = G4X_P_DISPLAY_PORT_MIN, + .max = G4X_P_DISPLAY_PORT_MAX }, + .p1 = { .min = G4X_P1_DISPLAY_PORT_MIN, + .max = G4X_P1_DISPLAY_PORT_MAX}, + .p2 = { .dot_limit = G4X_P2_DISPLAY_PORT_LIMIT, + .p2_slow = G4X_P2_DISPLAY_PORT_SLOW, + .p2_fast = G4X_P2_DISPLAY_PORT_FAST }, + .find_pll = intel_find_pll_g4x_dp, + }, { /* INTEL_LIMIT_IGD_SDVO */ .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX}, .vco = { .min = IGD_VCO_MIN, .max = IGD_VCO_MAX }, @@ -478,6 +525,8 @@ static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc) limit = &intel_limits[INTEL_LIMIT_G4X_HDMI_DAC]; } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) { limit = &intel_limits[INTEL_LIMIT_G4X_SDVO]; + } else if (intel_pipe_has_type (crtc, INTEL_OUTPUT_DISPLAYPORT)) { + limit = &intel_limits[INTEL_LIMIT_G4X_DISPLAY_PORT]; } else /* The option is for other outputs */ limit = &intel_limits[INTEL_LIMIT_I9XX_SDVO_DAC]; @@ -764,6 +813,35 @@ out: return found; } +/* DisplayPort has only two frequencies, 162MHz and 270MHz */ +static bool +intel_find_pll_g4x_dp(const intel_limit_t *limit, struct drm_crtc *crtc, + int target, int refclk, intel_clock_t *best_clock) +{ + intel_clock_t clock; + if (target < 200000) { + clock.dot = 161670; + clock.p = 20; + clock.p1 = 2; + clock.p2 = 10; + clock.n = 0x01; + clock.m = 97; + clock.m1 = 0x10; + clock.m2 = 0x05; + } else { + clock.dot = 270000; + clock.p = 10; + clock.p1 = 1; + clock.p2 = 10; + clock.n = 0x02; + clock.m = 108; + clock.m1 = 0x12; + clock.m2 = 0x06; + } + memcpy(best_clock, &clock, sizeof(intel_clock_t)); + return true; +} + void intel_wait_for_vblank(struct drm_device *dev) { @@ -1541,7 +1619,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, intel_clock_t clock; u32 dpll = 0, fp = 0, dspcntr, pipeconf; bool ok, is_sdvo = false, is_dvo = false; - bool is_crt = false, is_lvds = false, is_tv = false; + bool is_crt = false, is_lvds = false, is_tv = false, is_dp = false; struct drm_mode_config *mode_config = &dev->mode_config; struct drm_connector *connector; const intel_limit_t *limit; @@ -1585,6 +1663,9 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, case INTEL_OUTPUT_ANALOG: is_crt = true; break; + case INTEL_OUTPUT_DISPLAYPORT: + is_dp = true; + break; } num_outputs++; @@ -1600,6 +1681,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, } else { refclk = 48000; } + /* * Returns a set of divisors for the desired target clock with the given @@ -1662,6 +1744,8 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, else if (IS_IGDNG(dev)) dpll |= (sdvo_pixel_multiply - 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; } + if (is_dp) + dpll |= DPLL_DVO_HIGH_SPEED; /* compute bitmask from p1 value */ if (IS_IGD(dev)) @@ -1809,6 +1893,8 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, I915_WRITE(lvds_reg, lvds); I915_READ(lvds_reg); } + if (is_dp) + intel_dp_set_m_n(crtc, mode, adjusted_mode); I915_WRITE(fp_reg, fp); I915_WRITE(dpll_reg, dpll); @@ -2475,6 +2561,8 @@ static void intel_setup_outputs(struct drm_device *dev) found = intel_sdvo_init(dev, SDVOB); if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) intel_hdmi_init(dev, SDVOB); + if (!found && SUPPORTS_INTEGRATED_DP(dev)) + intel_dp_init(dev, DP_B); } /* Before G4X SDVOC doesn't have its own detect register */ @@ -2487,7 +2575,11 @@ static void intel_setup_outputs(struct drm_device *dev) found = intel_sdvo_init(dev, SDVOC); if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) intel_hdmi_init(dev, SDVOC); + if (!found && SUPPORTS_INTEGRATED_DP(dev)) + intel_dp_init(dev, DP_C); } + if (SUPPORTS_INTEGRATED_DP(dev) && (I915_READ(DP_D) & DP_DETECTED)) + intel_dp_init(dev, DP_D); } else intel_dvo_init(dev); @@ -2530,6 +2622,11 @@ static void intel_setup_outputs(struct drm_device *dev) (1 << 1)); clone_mask = (1 << INTEL_OUTPUT_TVOUT); break; + case INTEL_OUTPUT_DISPLAYPORT: + crtc_mask = ((1 << 0) | + (1 << 1)); + clone_mask = (1 << INTEL_OUTPUT_DISPLAYPORT); + break; } encoder->possible_crtcs = crtc_mask; encoder->possible_clones = intel_connector_clones(dev, clone_mask); diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c new file mode 100644 index 00000000000..c57cdab4f4a --- /dev/null +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -0,0 +1,1098 @@ +/* + * Copyright © 2008 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + * Authors: + * Keith Packard + * + */ + +#include +#include "drmP.h" +#include "drm.h" +#include "drm_crtc.h" +#include "drm_crtc_helper.h" +#include "intel_drv.h" +#include "i915_drm.h" +#include "i915_drv.h" +#include "intel_dp.h" + +#define DP_LINK_STATUS_SIZE 6 +#define DP_LINK_CHECK_TIMEOUT (10 * 1000) + +#define DP_LINK_CONFIGURATION_SIZE 9 + +struct intel_dp_priv { + uint32_t output_reg; + uint32_t DP; + uint8_t link_configuration[DP_LINK_CONFIGURATION_SIZE]; + uint32_t save_DP; + uint8_t save_link_configuration[DP_LINK_CONFIGURATION_SIZE]; + bool has_audio; + uint8_t link_bw; + uint8_t lane_count; + uint8_t dpcd[4]; + struct intel_output *intel_output; + struct i2c_adapter adapter; + struct i2c_algo_dp_aux_data algo; +}; + +static void +intel_dp_link_train(struct intel_output *intel_output, uint32_t DP, + uint8_t link_configuration[DP_LINK_CONFIGURATION_SIZE]); + +static void +intel_dp_link_down(struct intel_output *intel_output, uint32_t DP); + +static int +intel_dp_max_lane_count(struct intel_output *intel_output) +{ + struct intel_dp_priv *dp_priv = intel_output->dev_priv; + int max_lane_count = 4; + + if (dp_priv->dpcd[0] >= 0x11) { + max_lane_count = dp_priv->dpcd[2] & 0x1f; + switch (max_lane_count) { + case 1: case 2: case 4: + break; + default: + max_lane_count = 4; + } + } + return max_lane_count; +} + +static int +intel_dp_max_link_bw(struct intel_output *intel_output) +{ + struct intel_dp_priv *dp_priv = intel_output->dev_priv; + int max_link_bw = dp_priv->dpcd[1]; + + switch (max_link_bw) { + case DP_LINK_BW_1_62: + case DP_LINK_BW_2_7: + break; + default: + max_link_bw = DP_LINK_BW_1_62; + break; + } + return max_link_bw; +} + +static int +intel_dp_link_clock(uint8_t link_bw) +{ + if (link_bw == DP_LINK_BW_2_7) + return 270000; + else + return 162000; +} + +/* I think this is a fiction */ +static int +intel_dp_link_required(int pixel_clock) +{ + return pixel_clock * 3; +} + +static int +intel_dp_mode_valid(struct drm_connector *connector, + struct drm_display_mode *mode) +{ + struct intel_output *intel_output = to_intel_output(connector); + int max_link_clock = intel_dp_link_clock(intel_dp_max_link_bw(intel_output)); + int max_lanes = intel_dp_max_lane_count(intel_output); + + if (intel_dp_link_required(mode->clock) > max_link_clock * max_lanes) + return MODE_CLOCK_HIGH; + + if (mode->clock < 10000) + return MODE_CLOCK_LOW; + + return MODE_OK; +} + +static uint32_t +pack_aux(uint8_t *src, int src_bytes) +{ + int i; + uint32_t v = 0; + + if (src_bytes > 4) + src_bytes = 4; + for (i = 0; i < src_bytes; i++) + v |= ((uint32_t) src[i]) << ((3-i) * 8); + return v; +} + +static void +unpack_aux(uint32_t src, uint8_t *dst, int dst_bytes) +{ + int i; + if (dst_bytes > 4) + dst_bytes = 4; + for (i = 0; i < dst_bytes; i++) + dst[i] = src >> ((3-i) * 8); +} + +static int +intel_dp_aux_ch(struct intel_output *intel_output, + uint8_t *send, int send_bytes, + uint8_t *recv, int recv_size) +{ + struct intel_dp_priv *dp_priv = intel_output->dev_priv; + uint32_t output_reg = dp_priv->output_reg; + struct drm_device *dev = intel_output->base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + uint32_t ch_ctl = output_reg + 0x10; + uint32_t ch_data = ch_ctl + 4; + int i; + int recv_bytes; + uint32_t ctl; + uint32_t status; + + /* Load the send data into the aux channel data registers */ + for (i = 0; i < send_bytes; i += 4) { + uint32_t d = pack_aux(send + i, send_bytes - i);; + + I915_WRITE(ch_data + i, d); + } + + /* The clock divider is based off the hrawclk, + * and would like to run at 2MHz. The 133 below assumes + * a 266MHz hrawclk; need to figure out how we're supposed + * to know what hrawclk is... + */ + ctl = (DP_AUX_CH_CTL_SEND_BUSY | + DP_AUX_CH_CTL_TIME_OUT_1600us | + (send_bytes << DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT) | + (5 << DP_AUX_CH_CTL_PRECHARGE_2US_SHIFT) | + (133 << DP_AUX_CH_CTL_BIT_CLOCK_2X_SHIFT) | + DP_AUX_CH_CTL_TIME_OUT_ERROR | + DP_AUX_CH_CTL_RECEIVE_ERROR); + + /* Send the command and wait for it to complete */ + I915_WRITE(ch_ctl, ctl); + (void) I915_READ(ch_ctl); + for (;;) { + udelay(100); + status = I915_READ(ch_ctl); + if ((status & DP_AUX_CH_CTL_SEND_BUSY) == 0) + break; + } + + /* Clear done status and any errors */ + I915_WRITE(ch_ctl, (ctl | + DP_AUX_CH_CTL_DONE | + DP_AUX_CH_CTL_TIME_OUT_ERROR | + DP_AUX_CH_CTL_RECEIVE_ERROR)); + (void) I915_READ(ch_ctl); + + if ((status & DP_AUX_CH_CTL_DONE) == 0) { + printk(KERN_ERR "dp_aux_ch not done status 0x%08x\n", status); + return -1; + } + + /* Check for timeout or receive error. + * Timeouts occur when the sink is not connected + */ + if (status & (DP_AUX_CH_CTL_TIME_OUT_ERROR | DP_AUX_CH_CTL_RECEIVE_ERROR)) { + printk(KERN_ERR "dp_aux_ch error status 0x%08x\n", status); + return -1; + } + + /* Unload any bytes sent back from the other side */ + recv_bytes = ((status & DP_AUX_CH_CTL_MESSAGE_SIZE_MASK) >> + DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT); + + if (recv_bytes > recv_size) + recv_bytes = recv_size; + + for (i = 0; i < recv_bytes; i += 4) { + uint32_t d = I915_READ(ch_data + i); + + unpack_aux(d, recv + i, recv_bytes - i); + } + + return recv_bytes; +} + +/* Write data to the aux channel in native mode */ +static int +intel_dp_aux_native_write(struct intel_output *intel_output, + uint16_t address, uint8_t *send, int send_bytes) +{ + int ret; + uint8_t msg[20]; + int msg_bytes; + uint8_t ack; + + if (send_bytes > 16) + return -1; + msg[0] = AUX_NATIVE_WRITE << 4; + msg[1] = address >> 8; + msg[2] = address; + msg[3] = send_bytes - 1; + memcpy(&msg[4], send, send_bytes); + msg_bytes = send_bytes + 4; + for (;;) { + ret = intel_dp_aux_ch(intel_output, msg, msg_bytes, &ack, 1); + if (ret < 0) + return ret; + if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_ACK) + break; + else if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_DEFER) + udelay(100); + else + return -1; + } + return send_bytes; +} + +/* Write a single byte to the aux channel in native mode */ +static int +intel_dp_aux_native_write_1(struct intel_output *intel_output, + uint16_t address, uint8_t byte) +{ + return intel_dp_aux_native_write(intel_output, address, &byte, 1); +} + +/* read bytes from a native aux channel */ +static int +intel_dp_aux_native_read(struct intel_output *intel_output, + uint16_t address, uint8_t *recv, int recv_bytes) +{ + uint8_t msg[4]; + int msg_bytes; + uint8_t reply[20]; + int reply_bytes; + uint8_t ack; + int ret; + + msg[0] = AUX_NATIVE_READ << 4; + msg[1] = address >> 8; + msg[2] = address & 0xff; + msg[3] = recv_bytes - 1; + + msg_bytes = 4; + reply_bytes = recv_bytes + 1; + + for (;;) { + ret = intel_dp_aux_ch(intel_output, msg, msg_bytes, + reply, reply_bytes); + if (ret <= 0) + return ret; + ack = reply[0]; + if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_ACK) { + memcpy(recv, reply + 1, ret - 1); + return ret - 1; + } + else if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_DEFER) + udelay(100); + else + return -1; + } +} + +static int +intel_dp_i2c_aux_ch(struct i2c_adapter *adapter, + uint8_t *send, int send_bytes, + uint8_t *recv, int recv_bytes) +{ + struct intel_dp_priv *dp_priv = container_of(adapter, + struct intel_dp_priv, + adapter); + struct intel_output *intel_output = dp_priv->intel_output; + + return intel_dp_aux_ch(intel_output, + send, send_bytes, recv, recv_bytes); +} + +static int +intel_dp_i2c_init(struct intel_output *intel_output, const char *name) +{ + struct intel_dp_priv *dp_priv = intel_output->dev_priv; + + DRM_ERROR("i2c_init %s\n", name); + dp_priv->algo.running = false; + dp_priv->algo.address = 0; + dp_priv->algo.aux_ch = intel_dp_i2c_aux_ch; + + memset(&dp_priv->adapter, '\0', sizeof (dp_priv->adapter)); + dp_priv->adapter.owner = THIS_MODULE; + dp_priv->adapter.class = I2C_CLASS_DDC; + strncpy (dp_priv->adapter.name, name, sizeof dp_priv->adapter.name - 1); + dp_priv->adapter.name[sizeof dp_priv->adapter.name - 1] = '\0'; + dp_priv->adapter.algo_data = &dp_priv->algo; + dp_priv->adapter.dev.parent = &intel_output->base.kdev; + + return i2c_dp_aux_add_bus(&dp_priv->adapter); +} + +static bool +intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + struct intel_output *intel_output = enc_to_intel_output(encoder); + struct intel_dp_priv *dp_priv = intel_output->dev_priv; + int lane_count, clock; + int max_lane_count = intel_dp_max_lane_count(intel_output); + int max_clock = intel_dp_max_link_bw(intel_output) == DP_LINK_BW_2_7 ? 1 : 0; + static int bws[2] = { DP_LINK_BW_1_62, DP_LINK_BW_2_7 }; + + for (lane_count = 1; lane_count <= max_lane_count; lane_count <<= 1) { + for (clock = 0; clock <= max_clock; clock++) { + int link_avail = intel_dp_link_clock(bws[clock]) * lane_count; + + if (intel_dp_link_required(mode->clock) <= link_avail) { + dp_priv->link_bw = bws[clock]; + dp_priv->lane_count = lane_count; + adjusted_mode->clock = intel_dp_link_clock(dp_priv->link_bw); + printk(KERN_ERR "link bw %02x lane count %d clock %d\n", + dp_priv->link_bw, dp_priv->lane_count, + adjusted_mode->clock); + return true; + } + } + } + return false; +} + +struct intel_dp_m_n { + uint32_t tu; + uint32_t gmch_m; + uint32_t gmch_n; + uint32_t link_m; + uint32_t link_n; +}; + +static void +intel_reduce_ratio(uint32_t *num, uint32_t *den) +{ + while (*num > 0xffffff || *den > 0xffffff) { + *num >>= 1; + *den >>= 1; + } +} + +static void +intel_dp_compute_m_n(int bytes_per_pixel, + int nlanes, + int pixel_clock, + int link_clock, + struct intel_dp_m_n *m_n) +{ + m_n->tu = 64; + m_n->gmch_m = pixel_clock * bytes_per_pixel; + m_n->gmch_n = link_clock * nlanes; + intel_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n); + m_n->link_m = pixel_clock; + m_n->link_n = link_clock; + intel_reduce_ratio(&m_n->link_m, &m_n->link_n); +} + +void +intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + struct drm_device *dev = crtc->dev; + struct drm_mode_config *mode_config = &dev->mode_config; + struct drm_connector *connector; + struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_crtc *intel_crtc = to_intel_crtc(crtc); + int lane_count = 4; + struct intel_dp_m_n m_n; + + /* + * Find the lane count in the intel_output private + */ + list_for_each_entry(connector, &mode_config->connector_list, head) { + struct intel_output *intel_output = to_intel_output(connector); + struct intel_dp_priv *dp_priv = intel_output->dev_priv; + + if (!connector->encoder || connector->encoder->crtc != crtc) + continue; + + if (intel_output->type == INTEL_OUTPUT_DISPLAYPORT) { + lane_count = dp_priv->lane_count; + break; + } + } + + /* + * Compute the GMCH and Link ratios. The '3' here is + * the number of bytes_per_pixel post-LUT, which we always + * set up for 8-bits of R/G/B, or 3 bytes total. + */ + intel_dp_compute_m_n(3, lane_count, + mode->clock, adjusted_mode->clock, &m_n); + + if (intel_crtc->pipe == 0) { + I915_WRITE(PIPEA_GMCH_DATA_M, + ((m_n.tu - 1) << PIPE_GMCH_DATA_M_TU_SIZE_SHIFT) | + m_n.gmch_m); + I915_WRITE(PIPEA_GMCH_DATA_N, + m_n.gmch_n); + I915_WRITE(PIPEA_DP_LINK_M, m_n.link_m); + I915_WRITE(PIPEA_DP_LINK_N, m_n.link_n); + } else { + I915_WRITE(PIPEB_GMCH_DATA_M, + ((m_n.tu - 1) << PIPE_GMCH_DATA_M_TU_SIZE_SHIFT) | + m_n.gmch_m); + I915_WRITE(PIPEB_GMCH_DATA_N, + m_n.gmch_n); + I915_WRITE(PIPEB_DP_LINK_M, m_n.link_m); + I915_WRITE(PIPEB_DP_LINK_N, m_n.link_n); + } +} + +static void +intel_dp_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + struct intel_output *intel_output = enc_to_intel_output(encoder); + struct intel_dp_priv *dp_priv = intel_output->dev_priv; + struct drm_crtc *crtc = intel_output->enc.crtc; + struct intel_crtc *intel_crtc = to_intel_crtc(crtc); + + dp_priv->DP = (DP_LINK_TRAIN_OFF | + DP_VOLTAGE_0_4 | + DP_PRE_EMPHASIS_0 | + DP_SYNC_VS_HIGH | + DP_SYNC_HS_HIGH); + + switch (dp_priv->lane_count) { + case 1: + dp_priv->DP |= DP_PORT_WIDTH_1; + break; + case 2: + dp_priv->DP |= DP_PORT_WIDTH_2; + break; + case 4: + dp_priv->DP |= DP_PORT_WIDTH_4; + break; + } + if (dp_priv->has_audio) + dp_priv->DP |= DP_AUDIO_OUTPUT_ENABLE; + + memset(dp_priv->link_configuration, 0, DP_LINK_CONFIGURATION_SIZE); + dp_priv->link_configuration[0] = dp_priv->link_bw; + dp_priv->link_configuration[1] = dp_priv->lane_count; + + /* + * Check for DPCD version > 1.1, + * enable enahanced frame stuff in that case + */ + if (dp_priv->dpcd[0] >= 0x11) { + dp_priv->link_configuration[1] |= DP_LANE_COUNT_ENHANCED_FRAME_EN; + dp_priv->DP |= DP_ENHANCED_FRAMING; + } + + if (intel_crtc->pipe == 1) + dp_priv->DP |= DP_PIPEB_SELECT; +} + + +static void +intel_dp_dpms(struct drm_encoder *encoder, int mode) +{ + struct intel_output *intel_output = enc_to_intel_output(encoder); + struct intel_dp_priv *dp_priv = intel_output->dev_priv; + struct drm_device *dev = intel_output->base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + uint32_t dp_reg = I915_READ(dp_priv->output_reg); + + if (mode != DRM_MODE_DPMS_ON) { + if (dp_reg & DP_PORT_EN) + intel_dp_link_down(intel_output, dp_priv->DP); + } else { + if (!(dp_reg & DP_PORT_EN)) + intel_dp_link_train(intel_output, dp_priv->DP, dp_priv->link_configuration); + } +} + +/* + * Fetch AUX CH registers 0x202 - 0x207 which contain + * link status information + */ +static bool +intel_dp_get_link_status(struct intel_output *intel_output, + uint8_t link_status[DP_LINK_STATUS_SIZE]) +{ + int ret; + + ret = intel_dp_aux_native_read(intel_output, + DP_LANE0_1_STATUS, + link_status, DP_LINK_STATUS_SIZE); + if (ret != DP_LINK_STATUS_SIZE) + return false; + return true; +} + +static uint8_t +intel_dp_link_status(uint8_t link_status[DP_LINK_STATUS_SIZE], + int r) +{ + return link_status[r - DP_LANE0_1_STATUS]; +} + +static void +intel_dp_save(struct drm_connector *connector) +{ + struct intel_output *intel_output = to_intel_output(connector); + struct drm_device *dev = intel_output->base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_dp_priv *dp_priv = intel_output->dev_priv; + + dp_priv->save_DP = I915_READ(dp_priv->output_reg); + intel_dp_aux_native_read(intel_output, DP_LINK_BW_SET, + dp_priv->save_link_configuration, + sizeof (dp_priv->save_link_configuration)); +} + +static uint8_t +intel_get_adjust_request_voltage(uint8_t link_status[DP_LINK_STATUS_SIZE], + int lane) +{ + int i = DP_ADJUST_REQUEST_LANE0_1 + (lane >> 1); + int s = ((lane & 1) ? + DP_ADJUST_VOLTAGE_SWING_LANE1_SHIFT : + DP_ADJUST_VOLTAGE_SWING_LANE0_SHIFT); + uint8_t l = intel_dp_link_status(link_status, i); + + return ((l >> s) & 3) << DP_TRAIN_VOLTAGE_SWING_SHIFT; +} + +static uint8_t +intel_get_adjust_request_pre_emphasis(uint8_t link_status[DP_LINK_STATUS_SIZE], + int lane) +{ + int i = DP_ADJUST_REQUEST_LANE0_1 + (lane >> 1); + int s = ((lane & 1) ? + DP_ADJUST_PRE_EMPHASIS_LANE1_SHIFT : + DP_ADJUST_PRE_EMPHASIS_LANE0_SHIFT); + uint8_t l = intel_dp_link_status(link_status, i); + + return ((l >> s) & 3) << DP_TRAIN_PRE_EMPHASIS_SHIFT; +} + + +#if 0 +static char *voltage_names[] = { + "0.4V", "0.6V", "0.8V", "1.2V" +}; +static char *pre_emph_names[] = { + "0dB", "3.5dB", "6dB", "9.5dB" +}; +static char *link_train_names[] = { + "pattern 1", "pattern 2", "idle", "off" +}; +#endif + +/* + * These are source-specific values; current Intel hardware supports + * a maximum voltage of 800mV and a maximum pre-emphasis of 6dB + */ +#define I830_DP_VOLTAGE_MAX DP_TRAIN_VOLTAGE_SWING_800 + +static uint8_t +intel_dp_pre_emphasis_max(uint8_t voltage_swing) +{ + switch (voltage_swing & DP_TRAIN_VOLTAGE_SWING_MASK) { + case DP_TRAIN_VOLTAGE_SWING_400: + return DP_TRAIN_PRE_EMPHASIS_6; + case DP_TRAIN_VOLTAGE_SWING_600: + return DP_TRAIN_PRE_EMPHASIS_6; + case DP_TRAIN_VOLTAGE_SWING_800: + return DP_TRAIN_PRE_EMPHASIS_3_5; + case DP_TRAIN_VOLTAGE_SWING_1200: + default: + return DP_TRAIN_PRE_EMPHASIS_0; + } +} + +static void +intel_get_adjust_train(struct intel_output *intel_output, + uint8_t link_status[DP_LINK_STATUS_SIZE], + int lane_count, + uint8_t train_set[4]) +{ + uint8_t v = 0; + uint8_t p = 0; + int lane; + + for (lane = 0; lane < lane_count; lane++) { + uint8_t this_v = intel_get_adjust_request_voltage(link_status, lane); + uint8_t this_p = intel_get_adjust_request_pre_emphasis(link_status, lane); + + if (this_v > v) + v = this_v; + if (this_p > p) + p = this_p; + } + + if (v >= I830_DP_VOLTAGE_MAX) + v = I830_DP_VOLTAGE_MAX | DP_TRAIN_MAX_SWING_REACHED; + + if (p >= intel_dp_pre_emphasis_max(v)) + p = intel_dp_pre_emphasis_max(v) | DP_TRAIN_MAX_PRE_EMPHASIS_REACHED; + + for (lane = 0; lane < 4; lane++) + train_set[lane] = v | p; +} + +static uint32_t +intel_dp_signal_levels(uint8_t train_set, int lane_count) +{ + uint32_t signal_levels = 0; + + switch (train_set & DP_TRAIN_VOLTAGE_SWING_MASK) { + case DP_TRAIN_VOLTAGE_SWING_400: + default: + signal_levels |= DP_VOLTAGE_0_4; + break; + case DP_TRAIN_VOLTAGE_SWING_600: + signal_levels |= DP_VOLTAGE_0_6; + break; + case DP_TRAIN_VOLTAGE_SWING_800: + signal_levels |= DP_VOLTAGE_0_8; + break; + case DP_TRAIN_VOLTAGE_SWING_1200: + signal_levels |= DP_VOLTAGE_1_2; + break; + } + switch (train_set & DP_TRAIN_PRE_EMPHASIS_MASK) { + case DP_TRAIN_PRE_EMPHASIS_0: + default: + signal_levels |= DP_PRE_EMPHASIS_0; + break; + case DP_TRAIN_PRE_EMPHASIS_3_5: + signal_levels |= DP_PRE_EMPHASIS_3_5; + break; + case DP_TRAIN_PRE_EMPHASIS_6: + signal_levels |= DP_PRE_EMPHASIS_6; + break; + case DP_TRAIN_PRE_EMPHASIS_9_5: + signal_levels |= DP_PRE_EMPHASIS_9_5; + break; + } + return signal_levels; +} + +static uint8_t +intel_get_lane_status(uint8_t link_status[DP_LINK_STATUS_SIZE], + int lane) +{ + int i = DP_LANE0_1_STATUS + (lane >> 1); + int s = (lane & 1) * 4; + uint8_t l = intel_dp_link_status(link_status, i); + + return (l >> s) & 0xf; +} + +/* Check for clock recovery is done on all channels */ +static bool +intel_clock_recovery_ok(uint8_t link_status[DP_LINK_STATUS_SIZE], int lane_count) +{ + int lane; + uint8_t lane_status; + + for (lane = 0; lane < lane_count; lane++) { + lane_status = intel_get_lane_status(link_status, lane); + if ((lane_status & DP_LANE_CR_DONE) == 0) + return false; + } + return true; +} + +/* Check to see if channel eq is done on all channels */ +#define CHANNEL_EQ_BITS (DP_LANE_CR_DONE|\ + DP_LANE_CHANNEL_EQ_DONE|\ + DP_LANE_SYMBOL_LOCKED) +static bool +intel_channel_eq_ok(uint8_t link_status[DP_LINK_STATUS_SIZE], int lane_count) +{ + uint8_t lane_align; + uint8_t lane_status; + int lane; + + lane_align = intel_dp_link_status(link_status, + DP_LANE_ALIGN_STATUS_UPDATED); + if ((lane_align & DP_INTERLANE_ALIGN_DONE) == 0) + return false; + for (lane = 0; lane < lane_count; lane++) { + lane_status = intel_get_lane_status(link_status, lane); + if ((lane_status & CHANNEL_EQ_BITS) != CHANNEL_EQ_BITS) + return false; + } + return true; +} + +static bool +intel_dp_set_link_train(struct intel_output *intel_output, + uint32_t dp_reg_value, + uint8_t dp_train_pat, + uint8_t train_set[4], + bool first) +{ + struct drm_device *dev = intel_output->base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_dp_priv *dp_priv = intel_output->dev_priv; + int ret; + + I915_WRITE(dp_priv->output_reg, dp_reg_value); + POSTING_READ(dp_priv->output_reg); + if (first) + intel_wait_for_vblank(dev); + + intel_dp_aux_native_write_1(intel_output, + DP_TRAINING_PATTERN_SET, + dp_train_pat); + + ret = intel_dp_aux_native_write(intel_output, + DP_TRAINING_LANE0_SET, train_set, 4); + if (ret != 4) + return false; + + return true; +} + +static void +intel_dp_link_train(struct intel_output *intel_output, uint32_t DP, + uint8_t link_configuration[DP_LINK_CONFIGURATION_SIZE]) +{ + struct drm_device *dev = intel_output->base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_dp_priv *dp_priv = intel_output->dev_priv; + uint8_t train_set[4]; + uint8_t link_status[DP_LINK_STATUS_SIZE]; + int i; + uint8_t voltage; + bool clock_recovery = false; + bool channel_eq = false; + bool first = true; + int tries; + + /* Write the link configuration data */ + intel_dp_aux_native_write(intel_output, 0x100, + link_configuration, DP_LINK_CONFIGURATION_SIZE); + + DP |= DP_PORT_EN; + DP &= ~DP_LINK_TRAIN_MASK; + memset(train_set, 0, 4); + voltage = 0xff; + tries = 0; + clock_recovery = false; + for (;;) { + /* Use train_set[0] to set the voltage and pre emphasis values */ + uint32_t signal_levels = intel_dp_signal_levels(train_set[0], dp_priv->lane_count); + DP = (DP & ~(DP_VOLTAGE_MASK|DP_PRE_EMPHASIS_MASK)) | signal_levels; + + if (!intel_dp_set_link_train(intel_output, DP | DP_LINK_TRAIN_PAT_1, + DP_TRAINING_PATTERN_1, train_set, first)) + break; + first = false; + /* Set training pattern 1 */ + + udelay(100); + if (!intel_dp_get_link_status(intel_output, link_status)) + break; + + if (intel_clock_recovery_ok(link_status, dp_priv->lane_count)) { + clock_recovery = true; + break; + } + + /* Check to see if we've tried the max voltage */ + for (i = 0; i < dp_priv->lane_count; i++) + if ((train_set[i] & DP_TRAIN_MAX_SWING_REACHED) == 0) + break; + if (i == dp_priv->lane_count) + break; + + /* Check to see if we've tried the same voltage 5 times */ + if ((train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK) == voltage) { + ++tries; + if (tries == 5) + break; + } else + tries = 0; + voltage = train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK; + + /* Compute new train_set as requested by target */ + intel_get_adjust_train(intel_output, link_status, dp_priv->lane_count, train_set); + } + + /* channel equalization */ + tries = 0; + channel_eq = false; + for (;;) { + /* Use train_set[0] to set the voltage and pre emphasis values */ + uint32_t signal_levels = intel_dp_signal_levels(train_set[0], dp_priv->lane_count); + DP = (DP & ~(DP_VOLTAGE_MASK|DP_PRE_EMPHASIS_MASK)) | signal_levels; + + /* channel eq pattern */ + if (!intel_dp_set_link_train(intel_output, DP | DP_LINK_TRAIN_PAT_2, + DP_TRAINING_PATTERN_2, train_set, + false)) + break; + + udelay(400); + if (!intel_dp_get_link_status(intel_output, link_status)) + break; + + if (intel_channel_eq_ok(link_status, dp_priv->lane_count)) { + channel_eq = true; + break; + } + + /* Try 5 times */ + if (tries > 5) + break; + + /* Compute new train_set as requested by target */ + intel_get_adjust_train(intel_output, link_status, dp_priv->lane_count, train_set); + ++tries; + } + + I915_WRITE(dp_priv->output_reg, DP | DP_LINK_TRAIN_OFF); + POSTING_READ(dp_priv->output_reg); + intel_dp_aux_native_write_1(intel_output, + DP_TRAINING_PATTERN_SET, DP_TRAINING_PATTERN_DISABLE); +} + +static void +intel_dp_link_down(struct intel_output *intel_output, uint32_t DP) +{ + struct drm_device *dev = intel_output->base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_dp_priv *dp_priv = intel_output->dev_priv; + + I915_WRITE(dp_priv->output_reg, DP & ~DP_PORT_EN); + POSTING_READ(dp_priv->output_reg); +} + +static void +intel_dp_restore(struct drm_connector *connector) +{ + struct intel_output *intel_output = to_intel_output(connector); + struct intel_dp_priv *dp_priv = intel_output->dev_priv; + + if (dp_priv->save_DP & DP_PORT_EN) + intel_dp_link_train(intel_output, dp_priv->save_DP, dp_priv->save_link_configuration); + else + intel_dp_link_down(intel_output, dp_priv->save_DP); +} + +#if 0 +/* + * According to DP spec + * 5.1.2: + * 1. Read DPCD + * 2. Configure link according to Receiver Capabilities + * 3. Use Link Training from 2.5.3.3 and 3.5.1.3 + * 4. Check link status on receipt of hot-plug interrupt + */ + +static void +intel_dp_check_link_status(struct intel_output *intel_output) +{ + struct intel_dp_priv *dp_priv = intel_output->dev_priv; + uint8_t link_status[DP_LINK_STATUS_SIZE]; + + if (!intel_output->enc.crtc) + return; + + if (!intel_dp_get_link_status(intel_output, link_status)) { + intel_dp_link_down(intel_output, dp_priv->DP); + return; + } + + if (!intel_channel_eq_ok(link_status, dp_priv->lane_count)) + intel_dp_link_train(intel_output, dp_priv->DP, dp_priv->link_configuration); +} +#endif + +/** + * Uses CRT_HOTPLUG_EN and CRT_HOTPLUG_STAT to detect DP connection. + * + * \return true if DP port is connected. + * \return false if DP port is disconnected. + */ +static enum drm_connector_status +intel_dp_detect(struct drm_connector *connector) +{ + struct intel_output *intel_output = to_intel_output(connector); + struct drm_device *dev = intel_output->base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_dp_priv *dp_priv = intel_output->dev_priv; + uint32_t temp, bit; + enum drm_connector_status status; + + dp_priv->has_audio = false; + + temp = I915_READ(PORT_HOTPLUG_EN); + + I915_WRITE(PORT_HOTPLUG_EN, + temp | + DPB_HOTPLUG_INT_EN | + DPC_HOTPLUG_INT_EN | + DPD_HOTPLUG_INT_EN); + + POSTING_READ(PORT_HOTPLUG_EN); + + switch (dp_priv->output_reg) { + case DP_B: + bit = DPB_HOTPLUG_INT_STATUS; + break; + case DP_C: + bit = DPC_HOTPLUG_INT_STATUS; + break; + case DP_D: + bit = DPD_HOTPLUG_INT_STATUS; + break; + default: + return connector_status_unknown; + } + + temp = I915_READ(PORT_HOTPLUG_STAT); + + if ((temp & bit) == 0) + return connector_status_disconnected; + + status = connector_status_disconnected; + if (intel_dp_aux_native_read(intel_output, + 0x000, dp_priv->dpcd, + sizeof (dp_priv->dpcd)) == sizeof (dp_priv->dpcd)) + { + if (dp_priv->dpcd[0] != 0) + status = connector_status_connected; + } + return status; +} + +static int intel_dp_get_modes(struct drm_connector *connector) +{ + struct intel_output *intel_output = to_intel_output(connector); + + /* We should parse the EDID data and find out if it has an audio sink + */ + + return intel_ddc_get_modes(intel_output); +} + +static void +intel_dp_destroy (struct drm_connector *connector) +{ + struct intel_output *intel_output = to_intel_output(connector); + + if (intel_output->i2c_bus) + intel_i2c_destroy(intel_output->i2c_bus); + drm_sysfs_connector_remove(connector); + drm_connector_cleanup(connector); + kfree(intel_output); +} + +static const struct drm_encoder_helper_funcs intel_dp_helper_funcs = { + .dpms = intel_dp_dpms, + .mode_fixup = intel_dp_mode_fixup, + .prepare = intel_encoder_prepare, + .mode_set = intel_dp_mode_set, + .commit = intel_encoder_commit, +}; + +static const struct drm_connector_funcs intel_dp_connector_funcs = { + .dpms = drm_helper_connector_dpms, + .save = intel_dp_save, + .restore = intel_dp_restore, + .detect = intel_dp_detect, + .fill_modes = drm_helper_probe_single_connector_modes, + .destroy = intel_dp_destroy, +}; + +static const struct drm_connector_helper_funcs intel_dp_connector_helper_funcs = { + .get_modes = intel_dp_get_modes, + .mode_valid = intel_dp_mode_valid, + .best_encoder = intel_best_encoder, +}; + +static void intel_dp_enc_destroy(struct drm_encoder *encoder) +{ + drm_encoder_cleanup(encoder); +} + +static const struct drm_encoder_funcs intel_dp_enc_funcs = { + .destroy = intel_dp_enc_destroy, +}; + +void +intel_dp_init(struct drm_device *dev, int output_reg) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_connector *connector; + struct intel_output *intel_output; + struct intel_dp_priv *dp_priv; + + intel_output = kcalloc(sizeof(struct intel_output) + + sizeof(struct intel_dp_priv), 1, GFP_KERNEL); + if (!intel_output) + return; + + dp_priv = (struct intel_dp_priv *)(intel_output + 1); + + connector = &intel_output->base; + drm_connector_init(dev, connector, &intel_dp_connector_funcs, + DRM_MODE_CONNECTOR_DisplayPort); + drm_connector_helper_add(connector, &intel_dp_connector_helper_funcs); + + intel_output->type = INTEL_OUTPUT_DISPLAYPORT; + + connector->interlace_allowed = true; + connector->doublescan_allowed = 0; + + dp_priv->intel_output = intel_output; + dp_priv->output_reg = output_reg; + dp_priv->has_audio = false; + intel_output->dev_priv = dp_priv; + + drm_encoder_init(dev, &intel_output->enc, &intel_dp_enc_funcs, + DRM_MODE_ENCODER_TMDS); + drm_encoder_helper_add(&intel_output->enc, &intel_dp_helper_funcs); + + drm_mode_connector_attach_encoder(&intel_output->base, + &intel_output->enc); + drm_sysfs_connector_add(connector); + + /* Set up the DDC bus. */ + intel_dp_i2c_init(intel_output, + (output_reg == DP_B) ? "DPDDC-B" : + (output_reg == DP_C) ? "DPDDC-C" : "DPDDC-D"); + intel_output->ddc_bus = &dp_priv->adapter; + + /* For G4X desktop chip, PEG_BAND_GAP_DATA 3:0 must first be written + * 0xd. Failure to do so will result in spurious interrupts being + * generated on the port when a cable is not attached. + */ + if (IS_G4X(dev) && !IS_GM45(dev)) { + u32 temp = I915_READ(PEG_BAND_GAP_DATA); + I915_WRITE(PEG_BAND_GAP_DATA, (temp & ~0xf) | 0xd); + } +} diff --git a/drivers/gpu/drm/i915/intel_dp.h b/drivers/gpu/drm/i915/intel_dp.h new file mode 100644 index 00000000000..2b38054d3b6 --- /dev/null +++ b/drivers/gpu/drm/i915/intel_dp.h @@ -0,0 +1,144 @@ +/* + * Copyright © 2008 Keith Packard + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#ifndef _INTEL_DP_H_ +#define _INTEL_DP_H_ + +/* From the VESA DisplayPort spec */ + +#define AUX_NATIVE_WRITE 0x8 +#define AUX_NATIVE_READ 0x9 +#define AUX_I2C_WRITE 0x0 +#define AUX_I2C_READ 0x1 +#define AUX_I2C_STATUS 0x2 +#define AUX_I2C_MOT 0x4 + +#define AUX_NATIVE_REPLY_ACK (0x0 << 4) +#define AUX_NATIVE_REPLY_NACK (0x1 << 4) +#define AUX_NATIVE_REPLY_DEFER (0x2 << 4) +#define AUX_NATIVE_REPLY_MASK (0x3 << 4) + +#define AUX_I2C_REPLY_ACK (0x0 << 6) +#define AUX_I2C_REPLY_NACK (0x1 << 6) +#define AUX_I2C_REPLY_DEFER (0x2 << 6) +#define AUX_I2C_REPLY_MASK (0x3 << 6) + +/* AUX CH addresses */ +#define DP_LINK_BW_SET 0x100 +# define DP_LINK_BW_1_62 0x06 +# define DP_LINK_BW_2_7 0x0a + +#define DP_LANE_COUNT_SET 0x101 +# define DP_LANE_COUNT_MASK 0x0f +# define DP_LANE_COUNT_ENHANCED_FRAME_EN (1 << 7) + +#define DP_TRAINING_PATTERN_SET 0x102 + +# define DP_TRAINING_PATTERN_DISABLE 0 +# define DP_TRAINING_PATTERN_1 1 +# define DP_TRAINING_PATTERN_2 2 +# define DP_TRAINING_PATTERN_MASK 0x3 + +# define DP_LINK_QUAL_PATTERN_DISABLE (0 << 2) +# define DP_LINK_QUAL_PATTERN_D10_2 (1 << 2) +# define DP_LINK_QUAL_PATTERN_ERROR_RATE (2 << 2) +# define DP_LINK_QUAL_PATTERN_PRBS7 (3 << 2) +# define DP_LINK_QUAL_PATTERN_MASK (3 << 2) + +# define DP_RECOVERED_CLOCK_OUT_EN (1 << 4) +# define DP_LINK_SCRAMBLING_DISABLE (1 << 5) + +# define DP_SYMBOL_ERROR_COUNT_BOTH (0 << 6) +# define DP_SYMBOL_ERROR_COUNT_DISPARITY (1 << 6) +# define DP_SYMBOL_ERROR_COUNT_SYMBOL (2 << 6) +# define DP_SYMBOL_ERROR_COUNT_MASK (3 << 6) + +#define DP_TRAINING_LANE0_SET 0x103 +#define DP_TRAINING_LANE1_SET 0x104 +#define DP_TRAINING_LANE2_SET 0x105 +#define DP_TRAINING_LANE3_SET 0x106 + +# define DP_TRAIN_VOLTAGE_SWING_MASK 0x3 +# define DP_TRAIN_VOLTAGE_SWING_SHIFT 0 +# define DP_TRAIN_MAX_SWING_REACHED (1 << 2) +# define DP_TRAIN_VOLTAGE_SWING_400 (0 << 0) +# define DP_TRAIN_VOLTAGE_SWING_600 (1 << 0) +# define DP_TRAIN_VOLTAGE_SWING_800 (2 << 0) +# define DP_TRAIN_VOLTAGE_SWING_1200 (3 << 0) + +# define DP_TRAIN_PRE_EMPHASIS_MASK (3 << 3) +# define DP_TRAIN_PRE_EMPHASIS_0 (0 << 3) +# define DP_TRAIN_PRE_EMPHASIS_3_5 (1 << 3) +# define DP_TRAIN_PRE_EMPHASIS_6 (2 << 3) +# define DP_TRAIN_PRE_EMPHASIS_9_5 (3 << 3) + +# define DP_TRAIN_PRE_EMPHASIS_SHIFT 3 +# define DP_TRAIN_MAX_PRE_EMPHASIS_REACHED (1 << 5) + +#define DP_DOWNSPREAD_CTRL 0x107 +# define DP_SPREAD_AMP_0_5 (1 << 4) + +#define DP_MAIN_LINK_CHANNEL_CODING_SET 0x108 +# define DP_SET_ANSI_8B10B (1 << 0) + +#define DP_LANE0_1_STATUS 0x202 +#define DP_LANE2_3_STATUS 0x203 + +# define DP_LANE_CR_DONE (1 << 0) +# define DP_LANE_CHANNEL_EQ_DONE (1 << 1) +# define DP_LANE_SYMBOL_LOCKED (1 << 2) + +#define DP_LANE_ALIGN_STATUS_UPDATED 0x204 + +#define DP_INTERLANE_ALIGN_DONE (1 << 0) +#define DP_DOWNSTREAM_PORT_STATUS_CHANGED (1 << 6) +#define DP_LINK_STATUS_UPDATED (1 << 7) + +#define DP_SINK_STATUS 0x205 + +#define DP_RECEIVE_PORT_0_STATUS (1 << 0) +#define DP_RECEIVE_PORT_1_STATUS (1 << 1) + +#define DP_ADJUST_REQUEST_LANE0_1 0x206 +#define DP_ADJUST_REQUEST_LANE2_3 0x207 + +#define DP_ADJUST_VOLTAGE_SWING_LANE0_MASK 0x03 +#define DP_ADJUST_VOLTAGE_SWING_LANE0_SHIFT 0 +#define DP_ADJUST_PRE_EMPHASIS_LANE0_MASK 0x0c +#define DP_ADJUST_PRE_EMPHASIS_LANE0_SHIFT 2 +#define DP_ADJUST_VOLTAGE_SWING_LANE1_MASK 0x30 +#define DP_ADJUST_VOLTAGE_SWING_LANE1_SHIFT 4 +#define DP_ADJUST_PRE_EMPHASIS_LANE1_MASK 0xc0 +#define DP_ADJUST_PRE_EMPHASIS_LANE1_SHIFT 6 + +struct i2c_algo_dp_aux_data { + bool running; + u16 address; + int (*aux_ch) (struct i2c_adapter *adapter, + uint8_t *send, int send_bytes, + uint8_t *recv, int recv_bytes); +}; + +int +i2c_dp_aux_add_bus(struct i2c_adapter *adapter); + +#endif /* _INTEL_DP_H_ */ diff --git a/drivers/gpu/drm/i915/intel_dp_i2c.c b/drivers/gpu/drm/i915/intel_dp_i2c.c new file mode 100644 index 00000000000..4e60f14b1a6 --- /dev/null +++ b/drivers/gpu/drm/i915/intel_dp_i2c.c @@ -0,0 +1,272 @@ +/* + * Copyright © 2009 Keith Packard + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include "intel_dp.h" + +/* Run a single AUX_CH I2C transaction, writing/reading data as necessary */ + +#define MODE_I2C_START 1 +#define MODE_I2C_WRITE 2 +#define MODE_I2C_READ 4 +#define MODE_I2C_STOP 8 + +static int +i2c_algo_dp_aux_transaction(struct i2c_adapter *adapter, int mode, + uint8_t write_byte, uint8_t *read_byte) +{ + struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data; + uint16_t address = algo_data->address; + uint8_t msg[5]; + uint8_t reply[2]; + int msg_bytes; + int reply_bytes; + int ret; + + /* Set up the command byte */ + if (mode & MODE_I2C_READ) + msg[0] = AUX_I2C_READ << 4; + else + msg[0] = AUX_I2C_WRITE << 4; + + if (!(mode & MODE_I2C_STOP)) + msg[0] |= AUX_I2C_MOT << 4; + + msg[1] = address >> 8; + msg[2] = address; + + switch (mode) { + case MODE_I2C_WRITE: + msg[3] = 0; + msg[4] = write_byte; + msg_bytes = 5; + reply_bytes = 1; + break; + case MODE_I2C_READ: + msg[3] = 0; + msg_bytes = 4; + reply_bytes = 2; + break; + default: + msg_bytes = 3; + reply_bytes = 1; + break; + } + + for (;;) { + ret = (*algo_data->aux_ch)(adapter, + msg, msg_bytes, + reply, reply_bytes); + if (ret < 0) { + printk(KERN_ERR "aux_ch failed %d\n", ret); + return ret; + } + switch (reply[0] & AUX_I2C_REPLY_MASK) { + case AUX_I2C_REPLY_ACK: + if (mode == MODE_I2C_READ) { + *read_byte = reply[1]; + } + return reply_bytes - 1; + case AUX_I2C_REPLY_NACK: + printk(KERN_ERR "aux_ch nack\n"); + return -EREMOTEIO; + case AUX_I2C_REPLY_DEFER: + printk(KERN_ERR "aux_ch defer\n"); + udelay(100); + break; + default: + printk(KERN_ERR "aux_ch invalid reply 0x%02x\n", reply[0]); + return -EREMOTEIO; + } + } +} + +/* + * I2C over AUX CH + */ + +/* + * Send the address. If the I2C link is running, this 'restarts' + * the connection with the new address, this is used for doing + * a write followed by a read (as needed for DDC) + */ +static int +i2c_algo_dp_aux_address(struct i2c_adapter *adapter, u16 address, bool reading) +{ + struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data; + int mode = MODE_I2C_START; + int ret; + + if (reading) + mode |= MODE_I2C_READ; + else + mode |= MODE_I2C_WRITE; + algo_data->address = address; + algo_data->running = true; + ret = i2c_algo_dp_aux_transaction(adapter, mode, 0, NULL); + return ret; +} + +/* + * Stop the I2C transaction. This closes out the link, sending + * a bare address packet with the MOT bit turned off + */ +static void +i2c_algo_dp_aux_stop(struct i2c_adapter *adapter, bool reading) +{ + struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data; + int mode = MODE_I2C_STOP; + + if (reading) + mode |= MODE_I2C_READ; + else + mode |= MODE_I2C_WRITE; + if (algo_data->running) { + (void) i2c_algo_dp_aux_transaction(adapter, mode, 0, NULL); + algo_data->running = false; + } +} + +/* + * Write a single byte to the current I2C address, the + * the I2C link must be running or this returns -EIO + */ +static int +i2c_algo_dp_aux_put_byte(struct i2c_adapter *adapter, u8 byte) +{ + struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data; + int ret; + + if (!algo_data->running) + return -EIO; + + ret = i2c_algo_dp_aux_transaction(adapter, MODE_I2C_WRITE, byte, NULL); + return ret; +} + +/* + * Read a single byte from the current I2C address, the + * I2C link must be running or this returns -EIO + */ +static int +i2c_algo_dp_aux_get_byte(struct i2c_adapter *adapter, u8 *byte_ret) +{ + struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data; + int ret; + + if (!algo_data->running) + return -EIO; + + ret = i2c_algo_dp_aux_transaction(adapter, MODE_I2C_READ, 0, byte_ret); + return ret; +} + +static int +i2c_algo_dp_aux_xfer(struct i2c_adapter *adapter, + struct i2c_msg *msgs, + int num) +{ + int ret = 0; + bool reading = false; + int m; + int b; + + for (m = 0; m < num; m++) { + u16 len = msgs[m].len; + u8 *buf = msgs[m].buf; + reading = (msgs[m].flags & I2C_M_RD) != 0; + ret = i2c_algo_dp_aux_address(adapter, msgs[m].addr, reading); + if (ret < 0) + break; + if (reading) { + for (b = 0; b < len; b++) { + ret = i2c_algo_dp_aux_get_byte(adapter, &buf[b]); + if (ret < 0) + break; + } + } else { + for (b = 0; b < len; b++) { + ret = i2c_algo_dp_aux_put_byte(adapter, buf[b]); + if (ret < 0) + break; + } + } + if (ret < 0) + break; + } + if (ret >= 0) + ret = num; + i2c_algo_dp_aux_stop(adapter, reading); + printk(KERN_ERR "dp_aux_xfer return %d\n", ret); + return ret; +} + +static u32 +i2c_algo_dp_aux_functionality(struct i2c_adapter *adapter) +{ + return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | + I2C_FUNC_SMBUS_READ_BLOCK_DATA | + I2C_FUNC_SMBUS_BLOCK_PROC_CALL | + I2C_FUNC_10BIT_ADDR; +} + +static const struct i2c_algorithm i2c_dp_aux_algo = { + .master_xfer = i2c_algo_dp_aux_xfer, + .functionality = i2c_algo_dp_aux_functionality, +}; + +static void +i2c_dp_aux_reset_bus(struct i2c_adapter *adapter) +{ + (void) i2c_algo_dp_aux_address(adapter, 0, false); + (void) i2c_algo_dp_aux_stop(adapter, false); + +} + +static int +i2c_dp_aux_prepare_bus(struct i2c_adapter *adapter) +{ + adapter->algo = &i2c_dp_aux_algo; + adapter->retries = 3; + i2c_dp_aux_reset_bus(adapter); + return 0; +} + +int +i2c_dp_aux_add_bus(struct i2c_adapter *adapter) +{ + int error; + + error = i2c_dp_aux_prepare_bus(adapter); + if (error) + return error; + error = i2c_add_adapter(adapter); + return error; +} +EXPORT_SYMBOL(i2c_dp_aux_add_bus); diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index c5858792c80..004541c935a 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -54,6 +54,7 @@ #define INTEL_OUTPUT_LVDS 4 #define INTEL_OUTPUT_TVOUT 5 #define INTEL_OUTPUT_HDMI 6 +#define INTEL_OUTPUT_DISPLAYPORT 7 #define INTEL_DVO_CHIP_NONE 0 #define INTEL_DVO_CHIP_LVDS 1 @@ -116,6 +117,10 @@ extern bool intel_sdvo_init(struct drm_device *dev, int output_device); extern void intel_dvo_init(struct drm_device *dev); extern void intel_tv_init(struct drm_device *dev); extern void intel_lvds_init(struct drm_device *dev); +extern void intel_dp_init(struct drm_device *dev, int dp_reg); +void +intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode); extern void intel_crtc_load_lut(struct drm_crtc *crtc); extern void intel_encoder_prepare (struct drm_encoder *encoder); -- cgit v1.2.3 From c8110e52b753f3d105604df84ac06cd6d1645409 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Wed, 6 May 2009 11:51:10 -0700 Subject: drm/i915: Use hotplug callback to retrain DP link When a DP monitor is plugged back in, it needs to be retrained if it was active before. Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_dp.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index c57cdab4f4a..3f8d7b449e7 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -47,6 +47,7 @@ struct intel_dp_priv { uint32_t save_DP; uint8_t save_link_configuration[DP_LINK_CONFIGURATION_SIZE]; bool has_audio; + int dpms_mode; uint8_t link_bw; uint8_t lane_count; uint8_t dpcd[4]; @@ -527,6 +528,7 @@ intel_dp_dpms(struct drm_encoder *encoder, int mode) if (!(dp_reg & DP_PORT_EN)) intel_dp_link_train(intel_output, dp_priv->DP, dp_priv->link_configuration); } + dp_priv->dpms_mode = mode; } /* @@ -902,7 +904,6 @@ intel_dp_restore(struct drm_connector *connector) intel_dp_link_down(intel_output, dp_priv->save_DP); } -#if 0 /* * According to DP spec * 5.1.2: @@ -929,7 +930,6 @@ intel_dp_check_link_status(struct intel_output *intel_output) if (!intel_channel_eq_ok(link_status, dp_priv->lane_count)) intel_dp_link_train(intel_output, dp_priv->DP, dp_priv->link_configuration); } -#endif /** * Uses CRT_HOTPLUG_EN and CRT_HOTPLUG_STAT to detect DP connection. @@ -1043,6 +1043,15 @@ static const struct drm_encoder_funcs intel_dp_enc_funcs = { .destroy = intel_dp_enc_destroy, }; +void +intel_dp_hot_plug(struct intel_output *intel_output) +{ + struct intel_dp_priv *dp_priv = intel_output->dev_priv; + + if (dp_priv->dpms_mode == DRM_MODE_DPMS_ON) + intel_dp_check_link_status(intel_output); +} + void intel_dp_init(struct drm_device *dev, int output_reg) { @@ -1071,6 +1080,7 @@ intel_dp_init(struct drm_device *dev, int output_reg) dp_priv->intel_output = intel_output; dp_priv->output_reg = output_reg; dp_priv->has_audio = false; + dp_priv->dpms_mode = DRM_MODE_DPMS_ON; intel_output->dev_priv = dp_priv; drm_encoder_init(dev, &intel_output->enc, &intel_dp_enc_funcs, @@ -1086,6 +1096,7 @@ intel_dp_init(struct drm_device *dev, int output_reg) (output_reg == DP_B) ? "DPDDC-B" : (output_reg == DP_C) ? "DPDDC-C" : "DPDDC-D"); intel_output->ddc_bus = &dp_priv->adapter; + intel_output->hot_plug = intel_dp_hot_plug; /* For G4X desktop chip, PEG_BAND_GAP_DATA 3:0 must first be written * 0xd. Failure to do so will result in spurious interrupts being -- cgit v1.2.3 From e4b366996bc58a02b9dc35db3ef83f0454553f50 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Fri, 5 Jun 2009 19:22:17 -0700 Subject: drm/i915: Split array of DAC limits into separate structures. The array of DAC limits was only ever referenced with #defined constant offsets, and keeping those #define values in sync with the array itself was a nuisance. This will make future changes to the set of DAC limits less error-prone. Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_display.c | 108 +++++++++++++++++------------------ 1 file changed, 51 insertions(+), 57 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 5af55aa0d7a..73e7b9cecac 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -128,20 +128,6 @@ struct intel_limit { #define I9XX_P2_LVDS_FAST 7 #define I9XX_P2_LVDS_SLOW_LIMIT 112000 -#define INTEL_LIMIT_I8XX_DVO_DAC 0 -#define INTEL_LIMIT_I8XX_LVDS 1 -#define INTEL_LIMIT_I9XX_SDVO_DAC 2 -#define INTEL_LIMIT_I9XX_LVDS 3 -#define INTEL_LIMIT_G4X_SDVO 4 -#define INTEL_LIMIT_G4X_HDMI_DAC 5 -#define INTEL_LIMIT_G4X_SINGLE_CHANNEL_LVDS 6 -#define INTEL_LIMIT_G4X_DUAL_CHANNEL_LVDS 7 -#define INTEL_LIMIT_G4X_DISPLAY_PORT 8 -#define INTEL_LIMIT_IGD_SDVO_DAC 9 -#define INTEL_LIMIT_IGD_LVDS 10 -#define INTEL_LIMIT_IGDNG_SDVO_DAC 11 -#define INTEL_LIMIT_IGDNG_LVDS 12 - /*The parameter is for SDVO on G4x platform*/ #define G4X_DOT_SDVO_MIN 25000 #define G4X_DOT_SDVO_MAX 270000 @@ -281,8 +267,7 @@ static bool intel_find_pll_g4x_dp(const intel_limit_t *, struct drm_crtc *crtc, int target, int refclk, intel_clock_t *best_clock); -static const intel_limit_t intel_limits[] = { - { /* INTEL_LIMIT_I8XX_DVO_DAC */ +static const intel_limit_t intel_limits_i8xx_dvo = { .dot = { .min = I8XX_DOT_MIN, .max = I8XX_DOT_MAX }, .vco = { .min = I8XX_VCO_MIN, .max = I8XX_VCO_MAX }, .n = { .min = I8XX_N_MIN, .max = I8XX_N_MAX }, @@ -294,8 +279,9 @@ static const intel_limit_t intel_limits[] = { .p2 = { .dot_limit = I8XX_P2_SLOW_LIMIT, .p2_slow = I8XX_P2_SLOW, .p2_fast = I8XX_P2_FAST }, .find_pll = intel_find_best_PLL, - }, - { /* INTEL_LIMIT_I8XX_LVDS */ +}; + +static const intel_limit_t intel_limits_i8xx_lvds = { .dot = { .min = I8XX_DOT_MIN, .max = I8XX_DOT_MAX }, .vco = { .min = I8XX_VCO_MIN, .max = I8XX_VCO_MAX }, .n = { .min = I8XX_N_MIN, .max = I8XX_N_MAX }, @@ -307,8 +293,9 @@ static const intel_limit_t intel_limits[] = { .p2 = { .dot_limit = I8XX_P2_SLOW_LIMIT, .p2_slow = I8XX_P2_LVDS_SLOW, .p2_fast = I8XX_P2_LVDS_FAST }, .find_pll = intel_find_best_PLL, - }, - { /* INTEL_LIMIT_I9XX_SDVO_DAC */ +}; + +static const intel_limit_t intel_limits_i9xx_sdvo = { .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX }, .vco = { .min = I9XX_VCO_MIN, .max = I9XX_VCO_MAX }, .n = { .min = I9XX_N_MIN, .max = I9XX_N_MAX }, @@ -320,8 +307,9 @@ static const intel_limit_t intel_limits[] = { .p2 = { .dot_limit = I9XX_P2_SDVO_DAC_SLOW_LIMIT, .p2_slow = I9XX_P2_SDVO_DAC_SLOW, .p2_fast = I9XX_P2_SDVO_DAC_FAST }, .find_pll = intel_find_best_PLL, - }, - { /* INTEL_LIMIT_I9XX_LVDS */ +}; + +static const intel_limit_t intel_limits_i9xx_lvds = { .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX }, .vco = { .min = I9XX_VCO_MIN, .max = I9XX_VCO_MAX }, .n = { .min = I9XX_N_MIN, .max = I9XX_N_MAX }, @@ -336,9 +324,10 @@ static const intel_limit_t intel_limits[] = { .p2 = { .dot_limit = I9XX_P2_LVDS_SLOW_LIMIT, .p2_slow = I9XX_P2_LVDS_SLOW, .p2_fast = I9XX_P2_LVDS_FAST }, .find_pll = intel_find_best_PLL, - }, +}; + /* below parameter and function is for G4X Chipset Family*/ - { /* INTEL_LIMIT_G4X_SDVO */ +static const intel_limit_t intel_limits_g4x_sdvo = { .dot = { .min = G4X_DOT_SDVO_MIN, .max = G4X_DOT_SDVO_MAX }, .vco = { .min = G4X_VCO_MIN, .max = G4X_VCO_MAX}, .n = { .min = G4X_N_SDVO_MIN, .max = G4X_N_SDVO_MAX }, @@ -352,8 +341,9 @@ static const intel_limit_t intel_limits[] = { .p2_fast = G4X_P2_SDVO_FAST }, .find_pll = intel_g4x_find_best_PLL, - }, - { /* INTEL_LIMIT_G4X_HDMI_DAC */ +}; + +static const intel_limit_t intel_limits_g4x_hdmi = { .dot = { .min = G4X_DOT_HDMI_DAC_MIN, .max = G4X_DOT_HDMI_DAC_MAX }, .vco = { .min = G4X_VCO_MIN, .max = G4X_VCO_MAX}, .n = { .min = G4X_N_HDMI_DAC_MIN, .max = G4X_N_HDMI_DAC_MAX }, @@ -367,8 +357,9 @@ static const intel_limit_t intel_limits[] = { .p2_fast = G4X_P2_HDMI_DAC_FAST }, .find_pll = intel_g4x_find_best_PLL, - }, - { /* INTEL_LIMIT_G4X_SINGLE_CHANNEL_LVDS */ +}; + +static const intel_limit_t intel_limits_g4x_single_channel_lvds = { .dot = { .min = G4X_DOT_SINGLE_CHANNEL_LVDS_MIN, .max = G4X_DOT_SINGLE_CHANNEL_LVDS_MAX }, .vco = { .min = G4X_VCO_MIN, @@ -390,8 +381,9 @@ static const intel_limit_t intel_limits[] = { .p2_fast = G4X_P2_SINGLE_CHANNEL_LVDS_FAST }, .find_pll = intel_g4x_find_best_PLL, - }, - { /* INTEL_LIMIT_G4X_DUAL_CHANNEL_LVDS */ +}; + +static const intel_limit_t intel_limits_g4x_dual_channel_lvds = { .dot = { .min = G4X_DOT_DUAL_CHANNEL_LVDS_MIN, .max = G4X_DOT_DUAL_CHANNEL_LVDS_MAX }, .vco = { .min = G4X_VCO_MIN, @@ -413,8 +405,9 @@ static const intel_limit_t intel_limits[] = { .p2_fast = G4X_P2_DUAL_CHANNEL_LVDS_FAST }, .find_pll = intel_g4x_find_best_PLL, - }, - { /* INTEL_LIMIT_G4X_DISPLAY_PORT */ +}; + +static const intel_limit_t intel_limits_g4x_display_port = { .dot = { .min = G4X_DOT_DISPLAY_PORT_MIN, .max = G4X_DOT_DISPLAY_PORT_MAX }, .vco = { .min = G4X_VCO_MIN, @@ -435,8 +428,9 @@ static const intel_limit_t intel_limits[] = { .p2_slow = G4X_P2_DISPLAY_PORT_SLOW, .p2_fast = G4X_P2_DISPLAY_PORT_FAST }, .find_pll = intel_find_pll_g4x_dp, - }, - { /* INTEL_LIMIT_IGD_SDVO */ +}; + +static const intel_limit_t intel_limits_igd_sdvo = { .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX}, .vco = { .min = IGD_VCO_MIN, .max = IGD_VCO_MAX }, .n = { .min = IGD_N_MIN, .max = IGD_N_MAX }, @@ -448,8 +442,9 @@ static const intel_limit_t intel_limits[] = { .p2 = { .dot_limit = I9XX_P2_SDVO_DAC_SLOW_LIMIT, .p2_slow = I9XX_P2_SDVO_DAC_SLOW, .p2_fast = I9XX_P2_SDVO_DAC_FAST }, .find_pll = intel_find_best_PLL, - }, - { /* INTEL_LIMIT_IGD_LVDS */ +}; + +static const intel_limit_t intel_limits_igd_lvds = { .dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX }, .vco = { .min = IGD_VCO_MIN, .max = IGD_VCO_MAX }, .n = { .min = IGD_N_MIN, .max = IGD_N_MAX }, @@ -462,8 +457,9 @@ static const intel_limit_t intel_limits[] = { .p2 = { .dot_limit = I9XX_P2_LVDS_SLOW_LIMIT, .p2_slow = I9XX_P2_LVDS_SLOW, .p2_fast = I9XX_P2_LVDS_SLOW }, .find_pll = intel_find_best_PLL, - }, - { /* INTEL_LIMIT_IGDNG_SDVO_DAC */ +}; + +static const intel_limit_t intel_limits_igdng_sdvo = { .dot = { .min = IGDNG_DOT_MIN, .max = IGDNG_DOT_MAX }, .vco = { .min = IGDNG_VCO_MIN, .max = IGDNG_VCO_MAX }, .n = { .min = IGDNG_N_MIN, .max = IGDNG_N_MAX }, @@ -476,8 +472,9 @@ static const intel_limit_t intel_limits[] = { .p2_slow = IGDNG_P2_SDVO_DAC_SLOW, .p2_fast = IGDNG_P2_SDVO_DAC_FAST }, .find_pll = intel_igdng_find_best_PLL, - }, - { /* INTEL_LIMIT_IGDNG_LVDS */ +}; + +static const intel_limit_t intel_limits_igdng_lvds = { .dot = { .min = IGDNG_DOT_MIN, .max = IGDNG_DOT_MAX }, .vco = { .min = IGDNG_VCO_MIN, .max = IGDNG_VCO_MAX }, .n = { .min = IGDNG_N_MIN, .max = IGDNG_N_MAX }, @@ -490,16 +487,15 @@ static const intel_limit_t intel_limits[] = { .p2_slow = IGDNG_P2_LVDS_SLOW, .p2_fast = IGDNG_P2_LVDS_FAST }, .find_pll = intel_igdng_find_best_PLL, - }, }; static const intel_limit_t *intel_igdng_limit(struct drm_crtc *crtc) { const intel_limit_t *limit; if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) - limit = &intel_limits[INTEL_LIMIT_IGDNG_LVDS]; + limit = &intel_limits_igdng_lvds; else - limit = &intel_limits[INTEL_LIMIT_IGDNG_SDVO_DAC]; + limit = &intel_limits_igdng_sdvo; return limit; } @@ -514,21 +510,19 @@ static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc) if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP) /* LVDS with dual channel */ - limit = &intel_limits - [INTEL_LIMIT_G4X_DUAL_CHANNEL_LVDS]; + limit = &intel_limits_g4x_dual_channel_lvds; else /* LVDS with dual channel */ - limit = &intel_limits - [INTEL_LIMIT_G4X_SINGLE_CHANNEL_LVDS]; + limit = &intel_limits_g4x_single_channel_lvds; } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) || intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) { - limit = &intel_limits[INTEL_LIMIT_G4X_HDMI_DAC]; + limit = &intel_limits_g4x_hdmi; } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) { - limit = &intel_limits[INTEL_LIMIT_G4X_SDVO]; + limit = &intel_limits_g4x_sdvo; } else if (intel_pipe_has_type (crtc, INTEL_OUTPUT_DISPLAYPORT)) { - limit = &intel_limits[INTEL_LIMIT_G4X_DISPLAY_PORT]; + limit = &intel_limits_g4x_display_port; } else /* The option is for other outputs */ - limit = &intel_limits[INTEL_LIMIT_I9XX_SDVO_DAC]; + limit = &intel_limits_i9xx_sdvo; return limit; } @@ -544,19 +538,19 @@ static const intel_limit_t *intel_limit(struct drm_crtc *crtc) limit = intel_g4x_limit(crtc); } else if (IS_I9XX(dev) && !IS_IGD(dev)) { if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) - limit = &intel_limits[INTEL_LIMIT_I9XX_LVDS]; + limit = &intel_limits_i9xx_lvds; else - limit = &intel_limits[INTEL_LIMIT_I9XX_SDVO_DAC]; + limit = &intel_limits_i9xx_sdvo; } else if (IS_IGD(dev)) { if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) - limit = &intel_limits[INTEL_LIMIT_IGD_LVDS]; + limit = &intel_limits_igd_lvds; else - limit = &intel_limits[INTEL_LIMIT_IGD_SDVO_DAC]; + limit = &intel_limits_igd_sdvo; } else { if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) - limit = &intel_limits[INTEL_LIMIT_I8XX_LVDS]; + limit = &intel_limits_i8xx_lvds; else - limit = &intel_limits[INTEL_LIMIT_I8XX_DVO_DAC]; + limit = &intel_limits_i8xx_dvo; } return limit; } -- cgit v1.2.3 From b11248df4c0decb1e473d5025f237be32c0f67bb Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Thu, 11 Jun 2009 22:28:56 -0700 Subject: drm/i915: Add CLKCFG register definition The CLKCFG register holds information about the GMCH plls and input clock values. Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/i915_reg.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index f6237a0b113..544d5677a2f 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -569,6 +569,19 @@ #define C0DRB3 0x10206 #define C1DRB3 0x10606 +/* Clocking configuration register */ +#define CLKCFG 0x10c00 +#define CLKCFG_FSB_400 (0 << 0) /* hrawclk 100 */ +#define CLKCFG_FSB_533 (1 << 0) /* hrawclk 133 */ +#define CLKCFG_FSB_667 (3 << 0) /* hrawclk 166 */ +#define CLKCFG_FSB_800 (2 << 0) /* hrawclk 200 */ +#define CLKCFG_FSB_1067 (6 << 0) /* hrawclk 266 */ +#define CLKCFG_FSB_1333 (7 << 0) /* hrawclk 333 */ +/* this is a guess, could be 5 as well */ +#define CLKCFG_FSB_1600 (4 << 0) /* hrawclk 400 */ +#define CLKCFG_FSB_1600_ALT (5 << 0) /* hrawclk 400 */ +#define CLKCFG_FSB_MASK (7 << 0) + /** GM965 GM45 render standby register */ #define MCHBAR_RENDER_STANDBY 0x111B8 -- cgit v1.2.3 From a5b3da543d4882d57a2f3e05d37ad8e1e1453489 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Thu, 11 Jun 2009 22:30:32 -0700 Subject: drm/i915: Clarify error returns from display port aux channel I/O Use distinct error return values for each kind of aux channel I/O failure. Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_dp.c | 20 +++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 3f8d7b449e7..818fe34f2b5 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -209,15 +209,19 @@ intel_dp_aux_ch(struct intel_output *intel_output, if ((status & DP_AUX_CH_CTL_DONE) == 0) { printk(KERN_ERR "dp_aux_ch not done status 0x%08x\n", status); - return -1; + return -EBUSY; } /* Check for timeout or receive error. * Timeouts occur when the sink is not connected */ - if (status & (DP_AUX_CH_CTL_TIME_OUT_ERROR | DP_AUX_CH_CTL_RECEIVE_ERROR)) { - printk(KERN_ERR "dp_aux_ch error status 0x%08x\n", status); - return -1; + if (status & DP_AUX_CH_CTL_RECEIVE_ERROR) { + printk(KERN_ERR "dp_aux_ch receive error status 0x%08x\n", status); + return -EIO; + } + if (status & DP_AUX_CH_CTL_TIME_OUT_ERROR) { + printk(KERN_ERR "dp_aux_ch timeout status 0x%08x\n", status); + return -ETIMEDOUT; } /* Unload any bytes sent back from the other side */ @@ -263,7 +267,7 @@ intel_dp_aux_native_write(struct intel_output *intel_output, else if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_DEFER) udelay(100); else - return -1; + return -EIO; } return send_bytes; } @@ -299,7 +303,9 @@ intel_dp_aux_native_read(struct intel_output *intel_output, for (;;) { ret = intel_dp_aux_ch(intel_output, msg, msg_bytes, reply, reply_bytes); - if (ret <= 0) + if (ret == 0) + return -EPROTO; + if (ret < 0) return ret; ack = reply[0]; if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_ACK) { @@ -309,7 +315,7 @@ intel_dp_aux_native_read(struct intel_output *intel_output, else if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_DEFER) udelay(100); else - return -1; + return -EIO; } } -- cgit v1.2.3 From fb0f8fbf97e8a25074c81c629500d94cafa9e366 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Thu, 11 Jun 2009 22:31:31 -0700 Subject: drm/i915: Generate 2MHz clock for display port aux channel I/O. Retry I/O. The display port aux channel clock is taken from the hrawclk value, which is provided to the chip as the FSB frequency (as far as I can determine). The strapping values for that are available in the CLKCFG register, now used to select an appropriate divider to generate a 2MHz clock. In addition, the DisplayPort spec requires that each aux channel I/O be retried 'at least 3 times' in case the sink is idle when the first request comes in. Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_dp.c | 102 +++++++++++++++++++++++++++------------- 1 file changed, 70 insertions(+), 32 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 818fe34f2b5..8f8d37d5663 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -154,6 +154,36 @@ unpack_aux(uint32_t src, uint8_t *dst, int dst_bytes) dst[i] = src >> ((3-i) * 8); } +/* hrawclock is 1/4 the FSB frequency */ +static int +intel_hrawclk(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + uint32_t clkcfg; + + clkcfg = I915_READ(CLKCFG); + switch (clkcfg & CLKCFG_FSB_MASK) { + case CLKCFG_FSB_400: + return 100; + case CLKCFG_FSB_533: + return 133; + case CLKCFG_FSB_667: + return 166; + case CLKCFG_FSB_800: + return 200; + case CLKCFG_FSB_1067: + return 266; + case CLKCFG_FSB_1333: + return 333; + /* these two are just a guess; one of them might be right */ + case CLKCFG_FSB_1600: + case CLKCFG_FSB_1600_ALT: + return 400; + default: + return 133; + } +} + static int intel_dp_aux_ch(struct intel_output *intel_output, uint8_t *send, int send_bytes, @@ -169,44 +199,52 @@ intel_dp_aux_ch(struct intel_output *intel_output, int recv_bytes; uint32_t ctl; uint32_t status; - - /* Load the send data into the aux channel data registers */ - for (i = 0; i < send_bytes; i += 4) { - uint32_t d = pack_aux(send + i, send_bytes - i);; - - I915_WRITE(ch_data + i, d); - } + uint32_t aux_clock_divider; + int try; /* The clock divider is based off the hrawclk, - * and would like to run at 2MHz. The 133 below assumes - * a 266MHz hrawclk; need to figure out how we're supposed - * to know what hrawclk is... + * and would like to run at 2MHz. So, take the + * hrawclk value and divide by 2 and use that */ - ctl = (DP_AUX_CH_CTL_SEND_BUSY | - DP_AUX_CH_CTL_TIME_OUT_1600us | - (send_bytes << DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT) | - (5 << DP_AUX_CH_CTL_PRECHARGE_2US_SHIFT) | - (133 << DP_AUX_CH_CTL_BIT_CLOCK_2X_SHIFT) | - DP_AUX_CH_CTL_TIME_OUT_ERROR | - DP_AUX_CH_CTL_RECEIVE_ERROR); - - /* Send the command and wait for it to complete */ - I915_WRITE(ch_ctl, ctl); - (void) I915_READ(ch_ctl); - for (;;) { - udelay(100); - status = I915_READ(ch_ctl); - if ((status & DP_AUX_CH_CTL_SEND_BUSY) == 0) + aux_clock_divider = intel_hrawclk(dev) / 2; + /* Must try at least 3 times according to DP spec */ + for (try = 0; try < 5; try++) { + /* Load the send data into the aux channel data registers */ + for (i = 0; i < send_bytes; i += 4) { + uint32_t d = pack_aux(send + i, send_bytes - i);; + + I915_WRITE(ch_data + i, d); + } + + ctl = (DP_AUX_CH_CTL_SEND_BUSY | + DP_AUX_CH_CTL_TIME_OUT_400us | + (send_bytes << DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT) | + (5 << DP_AUX_CH_CTL_PRECHARGE_2US_SHIFT) | + (aux_clock_divider << DP_AUX_CH_CTL_BIT_CLOCK_2X_SHIFT) | + DP_AUX_CH_CTL_DONE | + DP_AUX_CH_CTL_TIME_OUT_ERROR | + DP_AUX_CH_CTL_RECEIVE_ERROR); + + /* Send the command and wait for it to complete */ + I915_WRITE(ch_ctl, ctl); + (void) I915_READ(ch_ctl); + for (;;) { + udelay(100); + status = I915_READ(ch_ctl); + if ((status & DP_AUX_CH_CTL_SEND_BUSY) == 0) + break; + } + + /* Clear done status and any errors */ + I915_WRITE(ch_ctl, (ctl | + DP_AUX_CH_CTL_DONE | + DP_AUX_CH_CTL_TIME_OUT_ERROR | + DP_AUX_CH_CTL_RECEIVE_ERROR)); + (void) I915_READ(ch_ctl); + if ((status & DP_AUX_CH_CTL_TIME_OUT_ERROR) == 0) break; } - /* Clear done status and any errors */ - I915_WRITE(ch_ctl, (ctl | - DP_AUX_CH_CTL_DONE | - DP_AUX_CH_CTL_TIME_OUT_ERROR | - DP_AUX_CH_CTL_RECEIVE_ERROR)); - (void) I915_READ(ch_ctl); - if ((status & DP_AUX_CH_CTL_DONE) == 0) { printk(KERN_ERR "dp_aux_ch not done status 0x%08x\n", status); return -EBUSY; -- cgit v1.2.3 From 99bd0c0fc4b04da54cb311953ef9489931c19c63 Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Fri, 19 Jun 2009 10:59:09 +0200 Subject: x86: Set cpu_llc_id on AMD CPUs This counts when building sched domains in case NUMA information is not available. ( See cpu_coregroup_mask() which uses llc_shared_map which in turn is created based on cpu_llc_id. ) Currently Linux builds domains as follows: (example from a dual socket quad-core system) CPU0 attaching sched-domain: domain 0: span 0-7 level CPU groups: 0 1 2 3 4 5 6 7 ... CPU7 attaching sched-domain: domain 0: span 0-7 level CPU groups: 7 0 1 2 3 4 5 6 Ever since that is borked for multi-core AMD CPU systems. This patch fixes that and now we get a proper: CPU0 attaching sched-domain: domain 0: span 0-3 level MC groups: 0 1 2 3 domain 1: span 0-7 level CPU groups: 0-3 4-7 ... CPU7 attaching sched-domain: domain 0: span 4-7 level MC groups: 7 4 5 6 domain 1: span 0-7 level CPU groups: 4-7 0-3 This allows scheduler to assign tasks to cores on different sockets (i.e. that don't share last level cache) for performance reasons. Signed-off-by: Andreas Herrmann LKML-Reference: <20090619085909.GJ5218@alberich.amd.com> Cc: Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/amd.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index e5b27d8f1b4..28e5f595604 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -258,13 +258,15 @@ static void __cpuinit amd_detect_cmp(struct cpuinfo_x86 *c) { #ifdef CONFIG_X86_HT unsigned bits; + int cpu = smp_processor_id(); bits = c->x86_coreid_bits; - /* Low order bits define the core id (index of core in socket) */ c->cpu_core_id = c->initial_apicid & ((1 << bits)-1); /* Convert the initial APIC ID into the socket ID */ c->phys_proc_id = c->initial_apicid >> bits; + /* use socket ID also for last level cache */ + per_cpu(cpu_llc_id, cpu) = c->phys_proc_id; #endif } -- cgit v1.2.3 From d4ec36bac3de39b7e10ec8f42fbdd20d9a9ed753 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Sun, 21 Jun 2009 12:32:39 +0200 Subject: sched: Documentation/sched-rt-group: Fix style issues & bump version - add missing closing bracket - fix two 80-chars issues (as the rest of the document adheres to it) - bump a reference to kernel version, so the document does not feel aged Signed-off-by: Wolfram Sang Cc: Peter Zijlstra LKML-Reference: <1245580359-4465-1-git-send-email-w.sang@pengutronix.de> Signed-off-by: Ingo Molnar --- Documentation/scheduler/sched-rt-group.txt | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/Documentation/scheduler/sched-rt-group.txt b/Documentation/scheduler/sched-rt-group.txt index 1df7f9cdab0..86eabe6c341 100644 --- a/Documentation/scheduler/sched-rt-group.txt +++ b/Documentation/scheduler/sched-rt-group.txt @@ -73,7 +73,7 @@ The remaining CPU time will be used for user input and other tasks. Because realtime tasks have explicitly allocated the CPU time they need to perform their tasks, buffer underruns in the graphics or audio can be eliminated. -NOTE: the above example is not fully implemented as of yet (2.6.25). We still +NOTE: the above example is not fully implemented yet. We still lack an EDF scheduler to make non-uniform periods usable. @@ -140,14 +140,15 @@ The other option is: .o CONFIG_CGROUP_SCHED (aka "Basis for grouping tasks" = "Control groups") -This uses the /cgroup virtual file system and "/cgroup//cpu.rt_runtime_us" -to control the CPU time reserved for each control group instead. +This uses the /cgroup virtual file system and +"/cgroup//cpu.rt_runtime_us" to control the CPU time reserved for each +control group instead. For more information on working with control groups, you should read Documentation/cgroups/cgroups.txt as well. -Group settings are checked against the following limits in order to keep the configuration -schedulable: +Group settings are checked against the following limits in order to keep the +configuration schedulable: \Sum_{i} runtime_{i} / global_period <= global_runtime / global_period @@ -189,7 +190,7 @@ Implementing SCHED_EDF might take a while to complete. Priority Inheritance is the biggest challenge as the current linux PI infrastructure is geared towards the limited static priority levels 0-99. With deadline scheduling you need to do deadline inheritance (since priority is inversely proportional to the -deadline delta (deadline - now). +deadline delta (deadline - now)). This means the whole PI machinery will have to be reworked - and that is one of the most complex pieces of code we have. -- cgit v1.2.3 From d9f2a5ecb2846d0fd368fb4c45182e43f38e4471 Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Sat, 20 Jun 2009 13:19:25 +0530 Subject: perf_counter, x8: Fix L1-data-Cache-Store-Referencees for AMD Fix AMD's Data Cache Refills from System event. After this patch : ./tools/perf/perf stat -e l1d -e l1d-misses -e l1d-write -e l1d-prefetch -e l1d-prefetch-miss -e l1i -e l1i-misses -e l1i-prefetch -e l2 -e l2-misses -e l2-write -e dtlb -e dtlb-misses -e itlb -e itlb-misses -e bpu -e bpu-misses ls /dev/ > /dev/null Performance counter stats for 'ls /dev/': 2499484 L1-data-Cache-Load-Referencees (scaled from 3.97%) 70347 L1-data-Cache-Load-Misses (scaled from 7.30%) 9360 L1-data-Cache-Store-Referencees (scaled from 8.64%) 32804 L1-data-Cache-Prefetch-Referencees (scaled from 17.72%) 7693 L1-data-Cache-Prefetch-Misses (scaled from 22.97%) 2180945 L1-instruction-Cache-Load-Referencees (scaled from 28.48%) 14518 L1-instruction-Cache-Load-Misses (scaled from 35.00%) 2405 L1-instruction-Cache-Prefetch-Referencees (scaled from 34.89%) 71387 L2-Cache-Load-Referencees (scaled from 34.94%) 18732 L2-Cache-Load-Misses (scaled from 34.92%) 79918 L2-Cache-Store-Referencees (scaled from 36.02%) 1295294 Data-TLB-Cache-Load-Referencees (scaled from 35.99%) 30896 Data-TLB-Cache-Load-Misses (scaled from 33.36%) 1222030 Instruction-TLB-Cache-Load-Referencees (scaled from 29.46%) 357 Instruction-TLB-Cache-Load-Misses (scaled from 20.46%) 530888 Branch-Cache-Load-Referencees (scaled from 11.48%) 8638 Branch-Cache-Load-Misses (scaled from 5.09%) 0.011295149 seconds time elapsed. Earlier it always shows value 0. Signed-off-by: Jaswinder Singh Rajput LKML-Reference: <1245484165.3102.6.camel@localhost.localdomain> Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/perf_counter.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c index 76dfef23f78..22eb3a1d4f9 100644 --- a/arch/x86/kernel/cpu/perf_counter.c +++ b/arch/x86/kernel/cpu/perf_counter.c @@ -401,7 +401,7 @@ static const u64 amd_hw_cache_event_ids [ C(RESULT_MISS) ] = 0x0041, /* Data Cache Misses */ }, [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = 0x0042, /* Data Cache Refills from L2 */ + [ C(RESULT_ACCESS) ] = 0x0142, /* Data Cache Refills :system */ [ C(RESULT_MISS) ] = 0, }, [ C(OP_PREFETCH) ] = { -- cgit v1.2.3 From c1f47b454ce759d7b13604137a233cad4617e1e8 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Sun, 21 Jun 2009 13:58:51 +0200 Subject: perf_counter tools: Fix vmlinux fallback when running on a different kernel Lucas De Marchi reported that perf report and perf annotate displays mismatching profile if a perf.data is analyzed on an older kernel - even if the correct vmlinux is specified via the -k option. The reason is the fallback path in util/symbol.c:dso__load_kernel(): int dso__load_kernel(struct dso *self, const char *vmlinux, symbol_filter_t filter, int verbose) { int err = -1; if (vmlinux) err = dso__load_vmlinux(self, vmlinux, filter, verbose); if (err) err = dso__load_kallsyms(self, filter, verbose); return err; } dso__load_vmlinux() returns negative on error, but on success it returns the number of symbols loaded - which confuses the function to load the kallsyms. This is normally harmless, as reporting is usually performed on the same kernel that is analyzed - but if there's a mismatch then we load the wrong kallsyms and create a non-sensical symbol tree. The fix is to only fall back to kallsyms on errors. Reported-by: Lucas De Marchi Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo LKML-Reference: Signed-off-by: Ingo Molnar --- tools/perf/util/symbol.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 86e14375e74..01b62fa0399 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -629,7 +629,7 @@ int dso__load_kernel(struct dso *self, const char *vmlinux, if (vmlinux) err = dso__load_vmlinux(self, vmlinux, filter, verbose); - if (err) + if (err < 0) err = dso__load_kallsyms(self, filter, verbose); return err; -- cgit v1.2.3 From b76a3f93d01fc93a87cb6eba4e854ffe378b4bac Mon Sep 17 00:00:00 2001 From: Boaz Harrosh Date: Mon, 8 Jun 2009 19:28:41 +0300 Subject: exofs: Fix bio leak in error handling path (sync read) When failing a read request in the sync path, called from write_begin, I forgot to free the allocated bio, fix it. Signed-off-by: Boaz Harrosh --- fs/exofs/inode.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/exofs/inode.c b/fs/exofs/inode.c index 77d0a295eb1..bb5d6ed0f7a 100644 --- a/fs/exofs/inode.c +++ b/fs/exofs/inode.c @@ -295,6 +295,9 @@ static int read_exec(struct page_collect *pcol, bool is_sync) err: if (!is_sync) _unlock_pcol_pages(pcol, ret, READ); + else /* Pages unlocked by caller in sync mode only free bio */ + pcol_free(pcol); + kfree(pcol_copy); if (or) osd_end_request(or); -- cgit v1.2.3 From 27d2e1491985e95c486d991302e399f5c584b4eb Mon Sep 17 00:00:00 2001 From: Boaz Harrosh Date: Sun, 14 Jun 2009 17:23:09 +0300 Subject: exofs: Remove IBM copyrights Boaz, Congrats on getting all the OSD stuff into 2.6.30! I just pulled the git, and saw that the IBM copyrights are still there. Please remove them from all files: * Copyright (C) 2005, 2006 * International Business Machines IBM has revoked all rights on the code - they gave it to me. Thanks! Avishay Signed-off-by: Avishay Traeger Signed-off-by: Boaz Harrosh --- fs/exofs/common.h | 4 +--- fs/exofs/dir.c | 4 +--- fs/exofs/exofs.h | 4 +--- fs/exofs/file.c | 4 +--- fs/exofs/inode.c | 4 +--- fs/exofs/namei.c | 4 +--- fs/exofs/osd.c | 4 +--- fs/exofs/super.c | 4 +--- fs/exofs/symlink.c | 4 +--- 9 files changed, 9 insertions(+), 27 deletions(-) diff --git a/fs/exofs/common.h b/fs/exofs/common.h index 24667eedc02..c6718e4817f 100644 --- a/fs/exofs/common.h +++ b/fs/exofs/common.h @@ -2,9 +2,7 @@ * common.h - Common definitions for both Kernel and user-mode utilities * * Copyright (C) 2005, 2006 - * Avishay Traeger (avishay@gmail.com) (avishay@il.ibm.com) - * Copyright (C) 2005, 2006 - * International Business Machines + * Avishay Traeger (avishay@gmail.com) * Copyright (C) 2008, 2009 * Boaz Harrosh * diff --git a/fs/exofs/dir.c b/fs/exofs/dir.c index 65b0c8c776a..4cfab1cc75c 100644 --- a/fs/exofs/dir.c +++ b/fs/exofs/dir.c @@ -1,8 +1,6 @@ /* * Copyright (C) 2005, 2006 - * Avishay Traeger (avishay@gmail.com) (avishay@il.ibm.com) - * Copyright (C) 2005, 2006 - * International Business Machines + * Avishay Traeger (avishay@gmail.com) * Copyright (C) 2008, 2009 * Boaz Harrosh * diff --git a/fs/exofs/exofs.h b/fs/exofs/exofs.h index 0fd4c785967..c413b74ecf3 100644 --- a/fs/exofs/exofs.h +++ b/fs/exofs/exofs.h @@ -1,8 +1,6 @@ /* * Copyright (C) 2005, 2006 - * Avishay Traeger (avishay@gmail.com) (avishay@il.ibm.com) - * Copyright (C) 2005, 2006 - * International Business Machines + * Avishay Traeger (avishay@gmail.com) * Copyright (C) 2008, 2009 * Boaz Harrosh * diff --git a/fs/exofs/file.c b/fs/exofs/file.c index 6ed7fe48475..c6810038d63 100644 --- a/fs/exofs/file.c +++ b/fs/exofs/file.c @@ -1,8 +1,6 @@ /* * Copyright (C) 2005, 2006 - * Avishay Traeger (avishay@gmail.com) (avishay@il.ibm.com) - * Copyright (C) 2005, 2006 - * International Business Machines + * Avishay Traeger (avishay@gmail.com) * Copyright (C) 2008, 2009 * Boaz Harrosh * diff --git a/fs/exofs/inode.c b/fs/exofs/inode.c index bb5d6ed0f7a..6c10f747669 100644 --- a/fs/exofs/inode.c +++ b/fs/exofs/inode.c @@ -1,8 +1,6 @@ /* * Copyright (C) 2005, 2006 - * Avishay Traeger (avishay@gmail.com) (avishay@il.ibm.com) - * Copyright (C) 2005, 2006 - * International Business Machines + * Avishay Traeger (avishay@gmail.com) * Copyright (C) 2008, 2009 * Boaz Harrosh * diff --git a/fs/exofs/namei.c b/fs/exofs/namei.c index 77fdd765e76..b7dd0c23686 100644 --- a/fs/exofs/namei.c +++ b/fs/exofs/namei.c @@ -1,8 +1,6 @@ /* * Copyright (C) 2005, 2006 - * Avishay Traeger (avishay@gmail.com) (avishay@il.ibm.com) - * Copyright (C) 2005, 2006 - * International Business Machines + * Avishay Traeger (avishay@gmail.com) * Copyright (C) 2008, 2009 * Boaz Harrosh * diff --git a/fs/exofs/osd.c b/fs/exofs/osd.c index b3d2ccb87aa..4372542df28 100644 --- a/fs/exofs/osd.c +++ b/fs/exofs/osd.c @@ -1,8 +1,6 @@ /* * Copyright (C) 2005, 2006 - * Avishay Traeger (avishay@gmail.com) (avishay@il.ibm.com) - * Copyright (C) 2005, 2006 - * International Business Machines + * Avishay Traeger (avishay@gmail.com) * Copyright (C) 2008, 2009 * Boaz Harrosh * diff --git a/fs/exofs/super.c b/fs/exofs/super.c index 8216c5b77b5..e47b38e55a2 100644 --- a/fs/exofs/super.c +++ b/fs/exofs/super.c @@ -1,8 +1,6 @@ /* * Copyright (C) 2005, 2006 - * Avishay Traeger (avishay@gmail.com) (avishay@il.ibm.com) - * Copyright (C) 2005, 2006 - * International Business Machines + * Avishay Traeger (avishay@gmail.com) * Copyright (C) 2008, 2009 * Boaz Harrosh * diff --git a/fs/exofs/symlink.c b/fs/exofs/symlink.c index 36e2d7bc7f7..4dd687c3e74 100644 --- a/fs/exofs/symlink.c +++ b/fs/exofs/symlink.c @@ -1,8 +1,6 @@ /* * Copyright (C) 2005, 2006 - * Avishay Traeger (avishay@gmail.com) (avishay@il.ibm.com) - * Copyright (C) 2005, 2006 - * International Business Machines + * Avishay Traeger (avishay@gmail.com) * Copyright (C) 2008, 2009 * Boaz Harrosh * -- cgit v1.2.3 From baaf94cdc7fe1c61e3c660a3b055724fd9d0a034 Mon Sep 17 00:00:00 2001 From: Boaz Harrosh Date: Sun, 14 Jun 2009 16:52:10 +0300 Subject: exofs: Avoid using file_fsync() The use of file_fsync() in exofs_file_sync() is not necessary since it does some extra stuff not used by exofs. Open code just the parts that are currently needed. TODO: Farther optimization can be done to sync the sb only on inode update of new files, Usually the sb update is not needed in exofs. Signed-off-by: Boaz Harrosh --- fs/exofs/exofs.h | 3 +++ fs/exofs/file.c | 17 ++++++++++++----- fs/exofs/super.c | 2 +- 3 files changed, 16 insertions(+), 6 deletions(-) diff --git a/fs/exofs/exofs.h b/fs/exofs/exofs.h index c413b74ecf3..5ec72e020b2 100644 --- a/fs/exofs/exofs.h +++ b/fs/exofs/exofs.h @@ -154,6 +154,9 @@ ino_t exofs_parent_ino(struct dentry *child); int exofs_set_link(struct inode *, struct exofs_dir_entry *, struct page *, struct inode *); +/* super.c */ +int exofs_sync_fs(struct super_block *sb, int wait); + /********************* * operation vectors * *********************/ diff --git a/fs/exofs/file.c b/fs/exofs/file.c index c6810038d63..839b9dc1e70 100644 --- a/fs/exofs/file.c +++ b/fs/exofs/file.c @@ -45,16 +45,23 @@ static int exofs_file_fsync(struct file *filp, struct dentry *dentry, { int ret; struct address_space *mapping = filp->f_mapping; + struct inode *inode = dentry->d_inode; + struct super_block *sb; ret = filemap_write_and_wait(mapping); if (ret) return ret; - /*Note: file_fsync below also calles sync_blockdev, which is a no-op - * for exofs, but other then that it does sync_inode and - * sync_superblock which is what we need here. - */ - return file_fsync(filp, dentry, datasync); + /* sync the inode attributes */ + ret = write_inode_now(inode, 1); + + /* This is a good place to write the sb */ + /* TODO: Sechedule an sb-sync on create */ + sb = inode->i_sb; + if (sb->s_dirt) + exofs_sync_fs(sb, 1); + + return ret; } static int exofs_flush(struct file *file, fl_owner_t id) diff --git a/fs/exofs/super.c b/fs/exofs/super.c index e47b38e55a2..a343b4ea62f 100644 --- a/fs/exofs/super.c +++ b/fs/exofs/super.c @@ -198,7 +198,7 @@ static const struct export_operations exofs_export_ops; /* * Write the superblock to the OSD */ -static int exofs_sync_fs(struct super_block *sb, int wait) +int exofs_sync_fs(struct super_block *sb, int wait) { struct exofs_sb_info *sbi; struct exofs_fscb *fscb; -- cgit v1.2.3 From 42c55aa838bbd274a7ad2be1fd81d423ca63da4e Mon Sep 17 00:00:00 2001 From: Boaz Harrosh Date: Wed, 17 Jun 2009 16:54:34 +0300 Subject: MAINTAINERS: Add osd maintained files (F:) OSD files are found in three places: drivers/scsi/osd/ include/scsi/osd_* fs/exofs/ Signed-off-by: Boaz Harrosh --- MAINTAINERS | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index dc226e78612..b9b20895509 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4321,7 +4321,7 @@ W: http://www.nongnu.org/orinoco/ S: Maintained F: drivers/net/wireless/orinoco/ -OSD LIBRARY +OSD LIBRARY and FILESYSTEM P: Boaz Harrosh M: bharrosh@panasas.com P: Benny Halevy @@ -4330,6 +4330,9 @@ L: osd-dev@open-osd.org W: http://open-osd.org T: git git://git.open-osd.org/open-osd.git S: Maintained +F: drivers/scsi/osd/ +F: drivers/include/scsi/osd_* +F: fs/exofs/ P54 WIRELESS DRIVER P: Michael Wu -- cgit v1.2.3 From 85ae87c1ad8e18a421e7448a99a42ecda183f29f Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 22 Jun 2009 11:56:23 +0900 Subject: percpu: fix too lazy vunmap cache flushing In pcpu_unmap(), flushing virtual cache on vunmap can't be delayed as the page is going to be returned to the page allocator. Only TLB flushing can be put off such that vmalloc code can handle it lazily. Fix it. [ Impact: fix subtle virtual cache flush bug ] Signed-off-by: Tejun Heo Cc: Nick Piggin Cc: Ingo Molnar --- mm/percpu.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/mm/percpu.c b/mm/percpu.c index c0b2c1a76e8..d06f4748271 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -549,14 +549,14 @@ static void pcpu_free_area(struct pcpu_chunk *chunk, int freeme) * @chunk: chunk of interest * @page_start: page index of the first page to unmap * @page_end: page index of the last page to unmap + 1 - * @flush: whether to flush cache and tlb or not + * @flush_tlb: whether to flush tlb or not * * For each cpu, unmap pages [@page_start,@page_end) out of @chunk. * If @flush is true, vcache is flushed before unmapping and tlb * after. */ static void pcpu_unmap(struct pcpu_chunk *chunk, int page_start, int page_end, - bool flush) + bool flush_tlb) { unsigned int last = num_possible_cpus() - 1; unsigned int cpu; @@ -569,9 +569,8 @@ static void pcpu_unmap(struct pcpu_chunk *chunk, int page_start, int page_end, * the whole region at once rather than doing it for each cpu. * This could be an overkill but is more scalable. */ - if (flush) - flush_cache_vunmap(pcpu_chunk_addr(chunk, 0, page_start), - pcpu_chunk_addr(chunk, last, page_end)); + flush_cache_vunmap(pcpu_chunk_addr(chunk, 0, page_start), + pcpu_chunk_addr(chunk, last, page_end)); for_each_possible_cpu(cpu) unmap_kernel_range_noflush( @@ -579,7 +578,7 @@ static void pcpu_unmap(struct pcpu_chunk *chunk, int page_start, int page_end, (page_end - page_start) << PAGE_SHIFT); /* ditto as flush_cache_vunmap() */ - if (flush) + if (flush_tlb) flush_tlb_kernel_range(pcpu_chunk_addr(chunk, 0, page_start), pcpu_chunk_addr(chunk, last, page_end)); } -- cgit v1.2.3 From c5806df9232d2a7f554b4839b57cac2e664fc256 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 22 Jun 2009 11:56:24 +0900 Subject: x86: fix duplicate free in setup_pcpu_remap() failure path In the failure path, setup_pcpu_remap() tries to free the area which has already been freed to make holes in the large page. Fix it. [ Impact: fix duplicate free in failure path ] Signed-off-by: Tejun Heo Cc: Ingo Molnar --- arch/x86/kernel/setup_percpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c index 9c3f0823e6a..dfbc7e6c64d 100644 --- a/arch/x86/kernel/setup_percpu.c +++ b/arch/x86/kernel/setup_percpu.c @@ -228,7 +228,7 @@ static ssize_t __init setup_pcpu_remap(size_t static_size) enomem: for_each_possible_cpu(cpu) if (pcpur_ptrs[cpu]) - free_bootmem(__pa(pcpur_ptrs[cpu]), PMD_SIZE); + free_bootmem(__pa(pcpur_ptrs[cpu]), pcpur_size); ret = -ENOMEM; out_free_ar: free_bootmem(__pa(pcpur_ptrs), ptrs_size); -- cgit v1.2.3 From 97c9bf0618cd40b05b4859c1f8a90d8ad97fefb2 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 22 Jun 2009 11:56:24 +0900 Subject: x86: rename remap percpu first chunk allocator to lpage The "remap" allocator remaps large pages to build the first chunk; however, the name isn't very good because 4k allocator remaps too and the whole point of the remap allocator is using large page mapping. The allocator will be generalized and exported outside of x86, rename it to lpage before that happens. percpu_alloc kernel parameter is updated to accept both "remap" and "lpage" for lpage allocator. [ Impact: code cleanup, kernel parameter argument updated ] Signed-off-by: Tejun Heo Cc: Ingo Molnar --- arch/x86/kernel/setup_percpu.c | 50 +++++++++++++++++++++--------------------- 1 file changed, 25 insertions(+), 25 deletions(-) diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c index dfbc7e6c64d..8794c0c94d2 100644 --- a/arch/x86/kernel/setup_percpu.c +++ b/arch/x86/kernel/setup_percpu.c @@ -124,7 +124,7 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, unsigned long size, } /* - * Remap allocator + * Large page remap allocator * * This allocator uses PMD page as unit. A PMD page is allocated for * each cpu and each is remapped into vmalloc area using PMD mapping. @@ -137,20 +137,20 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, unsigned long size, * better than only using 4k mappings while still being NUMA friendly. */ #ifdef CONFIG_NEED_MULTIPLE_NODES -static size_t pcpur_size __initdata; -static void **pcpur_ptrs __initdata; +static size_t pcpul_size __initdata; +static void **pcpul_ptrs __initdata; -static struct page * __init pcpur_get_page(unsigned int cpu, int pageno) +static struct page * __init pcpul_get_page(unsigned int cpu, int pageno) { size_t off = (size_t)pageno << PAGE_SHIFT; - if (off >= pcpur_size) + if (off >= pcpul_size) return NULL; - return virt_to_page(pcpur_ptrs[cpu] + off); + return virt_to_page(pcpul_ptrs[cpu] + off); } -static ssize_t __init setup_pcpu_remap(size_t static_size) +static ssize_t __init setup_pcpu_lpage(size_t static_size) { static struct vm_struct vm; size_t ptrs_size, dyn_size; @@ -170,36 +170,36 @@ static ssize_t __init setup_pcpu_remap(size_t static_size) * Currently supports only single page. Supporting multiple * pages won't be too difficult if it ever becomes necessary. */ - pcpur_size = PFN_ALIGN(static_size + PERCPU_MODULE_RESERVE + + pcpul_size = PFN_ALIGN(static_size + PERCPU_MODULE_RESERVE + PERCPU_DYNAMIC_RESERVE); - if (pcpur_size > PMD_SIZE) { + if (pcpul_size > PMD_SIZE) { pr_warning("PERCPU: static data is larger than large page, " "can't use large page\n"); return -EINVAL; } - dyn_size = pcpur_size - static_size - PERCPU_FIRST_CHUNK_RESERVE; + dyn_size = pcpul_size - static_size - PERCPU_FIRST_CHUNK_RESERVE; /* allocate pointer array and alloc large pages */ - ptrs_size = PFN_ALIGN(num_possible_cpus() * sizeof(pcpur_ptrs[0])); - pcpur_ptrs = alloc_bootmem(ptrs_size); + ptrs_size = PFN_ALIGN(num_possible_cpus() * sizeof(pcpul_ptrs[0])); + pcpul_ptrs = alloc_bootmem(ptrs_size); for_each_possible_cpu(cpu) { - pcpur_ptrs[cpu] = pcpu_alloc_bootmem(cpu, PMD_SIZE, PMD_SIZE); - if (!pcpur_ptrs[cpu]) + pcpul_ptrs[cpu] = pcpu_alloc_bootmem(cpu, PMD_SIZE, PMD_SIZE); + if (!pcpul_ptrs[cpu]) goto enomem; /* - * Only use pcpur_size bytes and give back the rest. + * Only use pcpul_size bytes and give back the rest. * * Ingo: The 2MB up-rounding bootmem is needed to make * sure the partial 2MB page is still fully RAM - it's * not well-specified to have a PAT-incompatible area * (unmapped RAM, device memory, etc.) in that hole. */ - free_bootmem(__pa(pcpur_ptrs[cpu] + pcpur_size), - PMD_SIZE - pcpur_size); + free_bootmem(__pa(pcpul_ptrs[cpu] + pcpul_size), + PMD_SIZE - pcpul_size); - memcpy(pcpur_ptrs[cpu], __per_cpu_load, static_size); + memcpy(pcpul_ptrs[cpu], __per_cpu_load, static_size); } /* allocate address and map */ @@ -212,7 +212,7 @@ static ssize_t __init setup_pcpu_remap(size_t static_size) pmd = populate_extra_pmd((unsigned long)vm.addr + cpu * PMD_SIZE); - set_pmd(pmd, pfn_pmd(page_to_pfn(virt_to_page(pcpur_ptrs[cpu])), + set_pmd(pmd, pfn_pmd(page_to_pfn(virt_to_page(pcpul_ptrs[cpu])), PAGE_KERNEL_LARGE)); } @@ -220,22 +220,22 @@ static ssize_t __init setup_pcpu_remap(size_t static_size) pr_info("PERCPU: Remapped at %p with large pages, static data " "%zu bytes\n", vm.addr, static_size); - ret = pcpu_setup_first_chunk(pcpur_get_page, static_size, + ret = pcpu_setup_first_chunk(pcpul_get_page, static_size, PERCPU_FIRST_CHUNK_RESERVE, dyn_size, PMD_SIZE, vm.addr, NULL); goto out_free_ar; enomem: for_each_possible_cpu(cpu) - if (pcpur_ptrs[cpu]) - free_bootmem(__pa(pcpur_ptrs[cpu]), pcpur_size); + if (pcpul_ptrs[cpu]) + free_bootmem(__pa(pcpul_ptrs[cpu]), pcpul_size); ret = -ENOMEM; out_free_ar: - free_bootmem(__pa(pcpur_ptrs), ptrs_size); + free_bootmem(__pa(pcpul_ptrs), ptrs_size); return ret; } #else -static ssize_t __init setup_pcpu_remap(size_t static_size) +static ssize_t __init setup_pcpu_lpage(size_t static_size) { return -EINVAL; } @@ -367,7 +367,7 @@ void __init setup_per_cpu_areas(void) * of large page mappings. Please read comments on top of * each allocator for details. */ - ret = setup_pcpu_remap(static_size); + ret = setup_pcpu_lpage(static_size); if (ret < 0) ret = setup_pcpu_embed(static_size); if (ret < 0) -- cgit v1.2.3 From 0ff2587fd54bd6f66bc6914ada4eb77a7e819a5b Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 22 Jun 2009 11:56:24 +0900 Subject: x86: prepare setup_pcpu_lpage() for pageattr fix Make the following changes in preparation of coming pageattr updates. * Define and use array of struct pcpul_ent instead of array of pointers. The only difference is ->cpu field which is set but unused yet. * Rename variables according to the above change. * Rename local variable vm to pcpul_vm and move it out of the function. [ Impact: no functional difference ] Signed-off-by: Tejun Heo Cc: Jan Beulich Cc: Andi Kleen Cc: Ingo Molnar --- arch/x86/kernel/setup_percpu.c | 58 ++++++++++++++++++++++++------------------ 1 file changed, 33 insertions(+), 25 deletions(-) diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c index 8794c0c94d2..7d38941e2b8 100644 --- a/arch/x86/kernel/setup_percpu.c +++ b/arch/x86/kernel/setup_percpu.c @@ -137,8 +137,14 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, unsigned long size, * better than only using 4k mappings while still being NUMA friendly. */ #ifdef CONFIG_NEED_MULTIPLE_NODES +struct pcpul_ent { + unsigned int cpu; + void *ptr; +}; + static size_t pcpul_size __initdata; -static void **pcpul_ptrs __initdata; +static struct pcpul_ent *pcpul_map __initdata; +static struct vm_struct pcpul_vm; static struct page * __init pcpul_get_page(unsigned int cpu, int pageno) { @@ -147,13 +153,12 @@ static struct page * __init pcpul_get_page(unsigned int cpu, int pageno) if (off >= pcpul_size) return NULL; - return virt_to_page(pcpul_ptrs[cpu] + off); + return virt_to_page(pcpul_map[cpu].ptr + off); } static ssize_t __init setup_pcpu_lpage(size_t static_size) { - static struct vm_struct vm; - size_t ptrs_size, dyn_size; + size_t map_size, dyn_size; unsigned int cpu; ssize_t ret; @@ -180,12 +185,14 @@ static ssize_t __init setup_pcpu_lpage(size_t static_size) dyn_size = pcpul_size - static_size - PERCPU_FIRST_CHUNK_RESERVE; /* allocate pointer array and alloc large pages */ - ptrs_size = PFN_ALIGN(num_possible_cpus() * sizeof(pcpul_ptrs[0])); - pcpul_ptrs = alloc_bootmem(ptrs_size); + map_size = PFN_ALIGN(num_possible_cpus() * sizeof(pcpul_map[0])); + pcpul_map = alloc_bootmem(map_size); for_each_possible_cpu(cpu) { - pcpul_ptrs[cpu] = pcpu_alloc_bootmem(cpu, PMD_SIZE, PMD_SIZE); - if (!pcpul_ptrs[cpu]) + pcpul_map[cpu].cpu = cpu; + pcpul_map[cpu].ptr = pcpu_alloc_bootmem(cpu, PMD_SIZE, + PMD_SIZE); + if (!pcpul_map[cpu].ptr) goto enomem; /* @@ -196,42 +203,43 @@ static ssize_t __init setup_pcpu_lpage(size_t static_size) * not well-specified to have a PAT-incompatible area * (unmapped RAM, device memory, etc.) in that hole. */ - free_bootmem(__pa(pcpul_ptrs[cpu] + pcpul_size), + free_bootmem(__pa(pcpul_map[cpu].ptr + pcpul_size), PMD_SIZE - pcpul_size); - memcpy(pcpul_ptrs[cpu], __per_cpu_load, static_size); + memcpy(pcpul_map[cpu].ptr, __per_cpu_load, static_size); } /* allocate address and map */ - vm.flags = VM_ALLOC; - vm.size = num_possible_cpus() * PMD_SIZE; - vm_area_register_early(&vm, PMD_SIZE); + pcpul_vm.flags = VM_ALLOC; + pcpul_vm.size = num_possible_cpus() * PMD_SIZE; + vm_area_register_early(&pcpul_vm, PMD_SIZE); for_each_possible_cpu(cpu) { - pmd_t *pmd; + pmd_t *pmd, pmd_v; - pmd = populate_extra_pmd((unsigned long)vm.addr - + cpu * PMD_SIZE); - set_pmd(pmd, pfn_pmd(page_to_pfn(virt_to_page(pcpul_ptrs[cpu])), - PAGE_KERNEL_LARGE)); + pmd = populate_extra_pmd((unsigned long)pcpul_vm.addr + + cpu * PMD_SIZE); + pmd_v = pfn_pmd(page_to_pfn(virt_to_page(pcpul_map[cpu].ptr)), + PAGE_KERNEL_LARGE); + set_pmd(pmd, pmd_v); } /* we're ready, commit */ pr_info("PERCPU: Remapped at %p with large pages, static data " - "%zu bytes\n", vm.addr, static_size); + "%zu bytes\n", pcpul_vm.addr, static_size); ret = pcpu_setup_first_chunk(pcpul_get_page, static_size, PERCPU_FIRST_CHUNK_RESERVE, dyn_size, - PMD_SIZE, vm.addr, NULL); - goto out_free_ar; + PMD_SIZE, pcpul_vm.addr, NULL); + goto out_free_map; enomem: for_each_possible_cpu(cpu) - if (pcpul_ptrs[cpu]) - free_bootmem(__pa(pcpul_ptrs[cpu]), pcpul_size); + if (pcpul_map[cpu].ptr) + free_bootmem(__pa(pcpul_map[cpu].ptr), pcpul_size); ret = -ENOMEM; -out_free_ar: - free_bootmem(__pa(pcpul_ptrs), ptrs_size); +out_free_map: + free_bootmem(__pa(pcpul_map), map_size); return ret; } #else -- cgit v1.2.3 From 992f4c1c2c1583cef3296ec4bf5205843a9a5f3d Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 22 Jun 2009 11:56:24 +0900 Subject: x86: reorganize cpa_process_alias() Reorganize cpa_process_alias() so that new alias condition can be added easily. Jan Beulich spotted problem in the original cleanup thread which incorrectly assumed the two existing conditions were mutially exclusive. [ Impact: code reorganization ] Signed-off-by: Tejun Heo Cc: Jan Beulich Cc: Andi Kleen Cc: Ingo Molnar --- arch/x86/mm/pageattr.c | 50 +++++++++++++++++++++++--------------------------- 1 file changed, 23 insertions(+), 27 deletions(-) diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 3cfe9ced8a4..2ab058b0947 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -681,8 +681,9 @@ static int __change_page_attr_set_clr(struct cpa_data *cpa, int checkalias); static int cpa_process_alias(struct cpa_data *cpa) { struct cpa_data alias_cpa; - int ret = 0; - unsigned long temp_cpa_vaddr, vaddr; + unsigned long laddr = (unsigned long)__va(cpa->pfn << PAGE_SHIFT); + unsigned long vaddr; + int ret; if (cpa->pfn >= max_pfn_mapped) return 0; @@ -706,42 +707,37 @@ static int cpa_process_alias(struct cpa_data *cpa) PAGE_OFFSET + (max_pfn_mapped << PAGE_SHIFT)))) { alias_cpa = *cpa; - temp_cpa_vaddr = (unsigned long) __va(cpa->pfn << PAGE_SHIFT); - alias_cpa.vaddr = &temp_cpa_vaddr; + alias_cpa.vaddr = &laddr; alias_cpa.flags &= ~(CPA_PAGES_ARRAY | CPA_ARRAY); - ret = __change_page_attr_set_clr(&alias_cpa, 0); + if (ret) + return ret; } #ifdef CONFIG_X86_64 - if (ret) - return ret; /* - * No need to redo, when the primary call touched the high - * mapping already: - */ - if (within(vaddr, (unsigned long) _text, _brk_end)) - return 0; - - /* - * If the physical address is inside the kernel map, we need + * If the primary call didn't touch the high mapping already + * and the physical address is inside the kernel map, we need * to touch the high mapped kernel as well: */ - if (!within(cpa->pfn, highmap_start_pfn(), highmap_end_pfn())) - return 0; - - alias_cpa = *cpa; - temp_cpa_vaddr = (cpa->pfn << PAGE_SHIFT) + __START_KERNEL_map - phys_base; - alias_cpa.vaddr = &temp_cpa_vaddr; - alias_cpa.flags &= ~(CPA_PAGES_ARRAY | CPA_ARRAY); + if (!within(vaddr, (unsigned long)_text, _brk_end) && + within(cpa->pfn, highmap_start_pfn(), highmap_end_pfn())) { + unsigned long temp_cpa_vaddr = (cpa->pfn << PAGE_SHIFT) + + __START_KERNEL_map - phys_base; + alias_cpa = *cpa; + alias_cpa.vaddr = &temp_cpa_vaddr; + alias_cpa.flags &= ~(CPA_PAGES_ARRAY | CPA_ARRAY); - /* - * The high mapping range is imprecise, so ignore the return value. - */ - __change_page_attr_set_clr(&alias_cpa, 0); + /* + * The high mapping range is imprecise, so ignore the + * return value. + */ + __change_page_attr_set_clr(&alias_cpa, 0); + } #endif - return ret; + + return 0; } static int __change_page_attr_set_clr(struct cpa_data *cpa, int checkalias) -- cgit v1.2.3 From e59a1bb2fdfb745c685f5b40ffbed126331d3223 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 22 Jun 2009 11:56:24 +0900 Subject: x86: fix pageattr handling for lpage percpu allocator and re-enable it lpage allocator aliases a PMD page for each cpu and returns whatever is unused to the page allocator. When the pageattr of the recycled pages are changed, this makes the two aliases point to the overlapping regions with different attributes which isn't allowed and known to cause subtle data corruption in certain cases. This can be handled in simliar manner to the x86_64 highmap alias. pageattr code should detect if the target pages have PMD alias and split the PMD alias and synchronize the attributes. pcpur allocator is updated to keep the allocated PMD pages map sorted in ascending address order and provide pcpu_lpage_remapped() function which binary searches the array to determine whether the given address is aliased and if so to which address. pageattr is updated to use pcpu_lpage_remapped() to detect the PMD alias and split it up as necessary from cpa_process_alias(). Jan Beulich spotted the original problem and incorrect usage of vaddr instead of laddr for lookup. With this, lpage percpu allocator should work correctly. Re-enable it. [ Impact: fix subtle lpage pageattr bug and re-enable lpage ] Signed-off-by: Tejun Heo Reported-by: Jan Beulich Cc: Andi Kleen Cc: Ingo Molnar --- arch/x86/include/asm/percpu.h | 10 ++++++ arch/x86/kernel/setup_percpu.c | 72 ++++++++++++++++++++++++++++++++++++------ arch/x86/mm/pageattr.c | 21 +++++++++++- 3 files changed, 93 insertions(+), 10 deletions(-) diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h index 02ecb30982a..103f1ddb0d8 100644 --- a/arch/x86/include/asm/percpu.h +++ b/arch/x86/include/asm/percpu.h @@ -42,6 +42,7 @@ #else /* ...!ASSEMBLY */ +#include #include #ifdef CONFIG_SMP @@ -155,6 +156,15 @@ do { \ /* We can use this directly for local CPU (faster). */ DECLARE_PER_CPU(unsigned long, this_cpu_off); +#ifdef CONFIG_NEED_MULTIPLE_NODES +void *pcpu_lpage_remapped(void *kaddr); +#else +static inline void *pcpu_lpage_remapped(void *kaddr) +{ + return NULL; +} +#endif + #endif /* !__ASSEMBLY__ */ #ifdef CONFIG_SMP diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c index 7d38941e2b8..bad2fd22311 100644 --- a/arch/x86/kernel/setup_percpu.c +++ b/arch/x86/kernel/setup_percpu.c @@ -142,8 +142,8 @@ struct pcpul_ent { void *ptr; }; -static size_t pcpul_size __initdata; -static struct pcpul_ent *pcpul_map __initdata; +static size_t pcpul_size; +static struct pcpul_ent *pcpul_map; static struct vm_struct pcpul_vm; static struct page * __init pcpul_get_page(unsigned int cpu, int pageno) @@ -160,15 +160,14 @@ static ssize_t __init setup_pcpu_lpage(size_t static_size) { size_t map_size, dyn_size; unsigned int cpu; + int i, j; ssize_t ret; /* * If large page isn't supported, there's no benefit in doing * this. Also, on non-NUMA, embedding is better. - * - * NOTE: disabled for now. */ - if (true || !cpu_has_pse || !pcpu_need_numa()) + if (!cpu_has_pse || !pcpu_need_numa()) return -EINVAL; /* @@ -231,16 +230,71 @@ static ssize_t __init setup_pcpu_lpage(size_t static_size) ret = pcpu_setup_first_chunk(pcpul_get_page, static_size, PERCPU_FIRST_CHUNK_RESERVE, dyn_size, PMD_SIZE, pcpul_vm.addr, NULL); - goto out_free_map; + + /* sort pcpul_map array for pcpu_lpage_remapped() */ + for (i = 0; i < num_possible_cpus() - 1; i++) + for (j = i + 1; j < num_possible_cpus(); j++) + if (pcpul_map[i].ptr > pcpul_map[j].ptr) { + struct pcpul_ent tmp = pcpul_map[i]; + pcpul_map[i] = pcpul_map[j]; + pcpul_map[j] = tmp; + } + + return ret; enomem: for_each_possible_cpu(cpu) if (pcpul_map[cpu].ptr) free_bootmem(__pa(pcpul_map[cpu].ptr), pcpul_size); - ret = -ENOMEM; -out_free_map: free_bootmem(__pa(pcpul_map), map_size); - return ret; + return -ENOMEM; +} + +/** + * pcpu_lpage_remapped - determine whether a kaddr is in pcpul recycled area + * @kaddr: the kernel address in question + * + * Determine whether @kaddr falls in the pcpul recycled area. This is + * used by pageattr to detect VM aliases and break up the pcpu PMD + * mapping such that the same physical page is not mapped under + * different attributes. + * + * The recycled area is always at the tail of a partially used PMD + * page. + * + * RETURNS: + * Address of corresponding remapped pcpu address if match is found; + * otherwise, NULL. + */ +void *pcpu_lpage_remapped(void *kaddr) +{ + void *pmd_addr = (void *)((unsigned long)kaddr & PMD_MASK); + unsigned long offset = (unsigned long)kaddr & ~PMD_MASK; + int left = 0, right = num_possible_cpus() - 1; + int pos; + + /* pcpul in use at all? */ + if (!pcpul_map) + return NULL; + + /* okay, perform binary search */ + while (left <= right) { + pos = (left + right) / 2; + + if (pcpul_map[pos].ptr < pmd_addr) + left = pos + 1; + else if (pcpul_map[pos].ptr > pmd_addr) + right = pos - 1; + else { + /* it shouldn't be in the area for the first chunk */ + WARN_ON(offset < pcpul_size); + + return pcpul_vm.addr + + pcpul_map[pos].cpu * PMD_SIZE + offset; + } + } + + return NULL; } #else static ssize_t __init setup_pcpu_lpage(size_t static_size) diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 2ab058b0947..1b734d7a896 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include @@ -682,7 +683,7 @@ static int cpa_process_alias(struct cpa_data *cpa) { struct cpa_data alias_cpa; unsigned long laddr = (unsigned long)__va(cpa->pfn << PAGE_SHIFT); - unsigned long vaddr; + unsigned long vaddr, remapped; int ret; if (cpa->pfn >= max_pfn_mapped) @@ -737,6 +738,24 @@ static int cpa_process_alias(struct cpa_data *cpa) } #endif + /* + * If the PMD page was partially used for per-cpu remapping, + * the recycled area needs to be split and modified. Because + * the area is always proper subset of a PMD page + * cpa->numpages is guaranteed to be 1 for these areas, so + * there's no need to loop over and check for further remaps. + */ + remapped = (unsigned long)pcpu_lpage_remapped((void *)laddr); + if (remapped) { + WARN_ON(cpa->numpages > 1); + alias_cpa = *cpa; + alias_cpa.vaddr = &remapped; + alias_cpa.flags &= ~(CPA_PAGES_ARRAY | CPA_ARRAY); + ret = __change_page_attr_set_clr(&alias_cpa, 0); + if (ret) + return ret; + } + return 0; } -- cgit v1.2.3 From fa8a7094ba1679b4b9b443e0ac9f5e046c79ee8d Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 22 Jun 2009 11:56:24 +0900 Subject: x86: implement percpu_alloc kernel parameter According to Andi, it isn't clear whether lpage allocator is worth the trouble as there are many processors where PMD TLB is far scarcer than PTE TLB. The advantage or disadvantage probably depends on the actual size of percpu area and specific processor. As performance degradation due to TLB pressure tends to be highly workload specific and subtle, it is difficult to decide which way to go without more data. This patch implements percpu_alloc kernel parameter to allow selecting which first chunk allocator to use to ease debugging and testing. While at it, make sure all the failure paths report why something failed to help determining why certain allocator isn't working. Also, kill the "Great future plan" comment which had already been realized quite some time ago. [ Impact: allow explicit percpu first chunk allocator selection ] Signed-off-by: Tejun Heo Reported-by: Jan Beulich Cc: Andi Kleen Cc: Ingo Molnar --- Documentation/kernel-parameters.txt | 6 ++++ arch/x86/kernel/setup_percpu.c | 69 +++++++++++++++++++++++++++---------- mm/percpu.c | 13 ++++--- 3 files changed, 65 insertions(+), 23 deletions(-) diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 08def8deb5f..ecad946920d 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1882,6 +1882,12 @@ and is between 256 and 4096 characters. It is defined in the file Format: { 0 | 1 } See arch/parisc/kernel/pdc_chassis.c + percpu_alloc= [X86] Select which percpu first chunk allocator to use. + Allowed values are one of "lpage", "embed" and "4k". + See comments in arch/x86/kernel/setup_percpu.c for + details on each allocator. This parameter is primarily + for debugging and performance comparison. + pf. [PARIDE] See Documentation/blockdev/paride.txt. diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c index bad2fd22311..165ebd5ba83 100644 --- a/arch/x86/kernel/setup_percpu.c +++ b/arch/x86/kernel/setup_percpu.c @@ -156,20 +156,23 @@ static struct page * __init pcpul_get_page(unsigned int cpu, int pageno) return virt_to_page(pcpul_map[cpu].ptr + off); } -static ssize_t __init setup_pcpu_lpage(size_t static_size) +static ssize_t __init setup_pcpu_lpage(size_t static_size, bool chosen) { size_t map_size, dyn_size; unsigned int cpu; int i, j; ssize_t ret; - /* - * If large page isn't supported, there's no benefit in doing - * this. Also, on non-NUMA, embedding is better. - */ - if (!cpu_has_pse || !pcpu_need_numa()) + /* on non-NUMA, embedding is better */ + if (!chosen && !pcpu_need_numa()) return -EINVAL; + /* need PSE */ + if (!cpu_has_pse) { + pr_warning("PERCPU: lpage allocator requires PSE\n"); + return -EINVAL; + } + /* * Currently supports only single page. Supporting multiple * pages won't be too difficult if it ever becomes necessary. @@ -191,8 +194,11 @@ static ssize_t __init setup_pcpu_lpage(size_t static_size) pcpul_map[cpu].cpu = cpu; pcpul_map[cpu].ptr = pcpu_alloc_bootmem(cpu, PMD_SIZE, PMD_SIZE); - if (!pcpul_map[cpu].ptr) + if (!pcpul_map[cpu].ptr) { + pr_warning("PERCPU: failed to allocate large page " + "for cpu%u\n", cpu); goto enomem; + } /* * Only use pcpul_size bytes and give back the rest. @@ -297,7 +303,7 @@ void *pcpu_lpage_remapped(void *kaddr) return NULL; } #else -static ssize_t __init setup_pcpu_lpage(size_t static_size) +static ssize_t __init setup_pcpu_lpage(size_t static_size, bool chosen) { return -EINVAL; } @@ -311,7 +317,7 @@ static ssize_t __init setup_pcpu_lpage(size_t static_size) * mapping so that it can use PMD mapping without additional TLB * pressure. */ -static ssize_t __init setup_pcpu_embed(size_t static_size) +static ssize_t __init setup_pcpu_embed(size_t static_size, bool chosen) { size_t reserve = PERCPU_MODULE_RESERVE + PERCPU_DYNAMIC_RESERVE; @@ -320,7 +326,7 @@ static ssize_t __init setup_pcpu_embed(size_t static_size) * this. Also, embedding allocation doesn't play well with * NUMA. */ - if (!cpu_has_pse || pcpu_need_numa()) + if (!chosen && (!cpu_has_pse || pcpu_need_numa())) return -EINVAL; return pcpu_embed_first_chunk(static_size, PERCPU_FIRST_CHUNK_RESERVE, @@ -370,8 +376,11 @@ static ssize_t __init setup_pcpu_4k(size_t static_size) void *ptr; ptr = pcpu_alloc_bootmem(cpu, PAGE_SIZE, PAGE_SIZE); - if (!ptr) + if (!ptr) { + pr_warning("PERCPU: failed to allocate " + "4k page for cpu%u\n", cpu); goto enomem; + } memcpy(ptr, __per_cpu_load + i * PAGE_SIZE, PAGE_SIZE); pcpu4k_pages[j++] = virt_to_page(ptr); @@ -395,6 +404,16 @@ out_free_ar: return ret; } +/* for explicit first chunk allocator selection */ +static char pcpu_chosen_alloc[16] __initdata; + +static int __init percpu_alloc_setup(char *str) +{ + strncpy(pcpu_chosen_alloc, str, sizeof(pcpu_chosen_alloc) - 1); + return 0; +} +early_param("percpu_alloc", percpu_alloc_setup); + static inline void setup_percpu_segment(int cpu) { #ifdef CONFIG_X86_32 @@ -408,11 +427,6 @@ static inline void setup_percpu_segment(int cpu) #endif } -/* - * Great future plan: - * Declare PDA itself and support (irqstack,tss,pgd) as per cpu data. - * Always point %gs to its beginning - */ void __init setup_per_cpu_areas(void) { size_t static_size = __per_cpu_end - __per_cpu_start; @@ -429,9 +443,26 @@ void __init setup_per_cpu_areas(void) * of large page mappings. Please read comments on top of * each allocator for details. */ - ret = setup_pcpu_lpage(static_size); - if (ret < 0) - ret = setup_pcpu_embed(static_size); + ret = -EINVAL; + if (strlen(pcpu_chosen_alloc)) { + if (strcmp(pcpu_chosen_alloc, "4k")) { + if (!strcmp(pcpu_chosen_alloc, "lpage")) + ret = setup_pcpu_lpage(static_size, true); + else if (!strcmp(pcpu_chosen_alloc, "embed")) + ret = setup_pcpu_embed(static_size, true); + else + pr_warning("PERCPU: unknown allocator %s " + "specified\n", pcpu_chosen_alloc); + if (ret < 0) + pr_warning("PERCPU: %s allocator failed (%zd), " + "falling back to 4k\n", + pcpu_chosen_alloc, ret); + } + } else { + ret = setup_pcpu_lpage(static_size, false); + if (ret < 0) + ret = setup_pcpu_embed(static_size, false); + } if (ret < 0) ret = setup_pcpu_4k(static_size); if (ret < 0) diff --git a/mm/percpu.c b/mm/percpu.c index d06f4748271..b70f2acd885 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -1233,6 +1233,7 @@ static struct page * __init pcpue_get_page(unsigned int cpu, int pageno) ssize_t __init pcpu_embed_first_chunk(size_t static_size, size_t reserved_size, ssize_t dyn_size, ssize_t unit_size) { + size_t chunk_size; unsigned int cpu; /* determine parameters and allocate */ @@ -1247,11 +1248,15 @@ ssize_t __init pcpu_embed_first_chunk(size_t static_size, size_t reserved_size, } else pcpue_unit_size = max_t(size_t, pcpue_size, PCPU_MIN_UNIT_SIZE); - pcpue_ptr = __alloc_bootmem_nopanic( - num_possible_cpus() * pcpue_unit_size, - PAGE_SIZE, __pa(MAX_DMA_ADDRESS)); - if (!pcpue_ptr) + chunk_size = pcpue_unit_size * num_possible_cpus(); + + pcpue_ptr = __alloc_bootmem_nopanic(chunk_size, PAGE_SIZE, + __pa(MAX_DMA_ADDRESS)); + if (!pcpue_ptr) { + pr_warning("PERCPU: failed to allocate %zu bytes for " + "embedding\n", chunk_size); return -ENOMEM; + } /* return the leftover and copy */ for_each_possible_cpu(cpu) { -- cgit v1.2.3 From 0017c869ddcb73069905d09f9e98e68627466237 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 22 Jun 2009 11:56:24 +0900 Subject: x86: ensure percpu lpage doesn't consume too much vmalloc space On extreme configuration (e.g. 32bit 32-way NUMA machine), lpage percpu first chunk allocator can consume too much of vmalloc space. Make it fall back to 4k allocator if the consumption goes over 20%. [ Impact: add sanity check for lpage percpu first chunk allocator ] Signed-off-by: Tejun Heo Reported-by: Jan Beulich Cc: Andi Kleen Cc: Ingo Molnar --- arch/x86/kernel/setup_percpu.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c index 165ebd5ba83..29a3eef7cf4 100644 --- a/arch/x86/kernel/setup_percpu.c +++ b/arch/x86/kernel/setup_percpu.c @@ -163,9 +163,21 @@ static ssize_t __init setup_pcpu_lpage(size_t static_size, bool chosen) int i, j; ssize_t ret; - /* on non-NUMA, embedding is better */ - if (!chosen && !pcpu_need_numa()) - return -EINVAL; + if (!chosen) { + size_t vm_size = VMALLOC_END - VMALLOC_START; + size_t tot_size = num_possible_cpus() * PMD_SIZE; + + /* on non-NUMA, embedding is better */ + if (!pcpu_need_numa()) + return -EINVAL; + + /* don't consume more than 20% of vmalloc area */ + if (tot_size > vm_size / 5) { + pr_info("PERCPU: too large chunk size %zuMB for " + "large page remap\n", tot_size >> 20); + return -EINVAL; + } + } /* need PSE */ if (!cpu_has_pse) { -- cgit v1.2.3 From 8c52da503b7e4cf961807f11824e3258ef9f7f1c Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Thu, 18 Jun 2009 20:22:19 -0700 Subject: drm/i915: Add missing dependency on Intel AGP support. Users could accidentally enable AGP but not the Intel AGP support, and get a DRM that doesn't probe as a result. Bug #22358. Signed-off-by: Eric Anholt --- drivers/gpu/drm/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index c961fe415ae..39b393d38bb 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -81,6 +81,7 @@ config DRM_I830 config DRM_I915 tristate "i915 driver" + depends on AGP_INTEL select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT -- cgit v1.2.3 From 4859484b0957ddc7fe3e0fa349d98b0f1c7876bd Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Fri, 19 Jun 2009 23:24:11 +0200 Subject: HID: hiddev, fix lock imbalance Add omitted BKL to one switch/case. Cc: Stable Signed-off-by: Jiri Slaby Signed-off-by: Jiri Kosina --- drivers/hid/usbhid/hiddev.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c index e9b436d2d94..39e27f4be4a 100644 --- a/drivers/hid/usbhid/hiddev.c +++ b/drivers/hid/usbhid/hiddev.c @@ -527,8 +527,10 @@ static noinline int hiddev_ioctl_usage(struct hiddev *hiddev, unsigned int cmd, goto goodreturn; case HIDIOCGCOLLECTIONINDEX: + i = field->usage[uref->usage_index].collection_index; + unlock_kernel(); kfree(uref_multi); - return field->usage[uref->usage_index].collection_index; + return i; case HIDIOCGUSAGES: for (i = 0; i < uref_multi->num_values; i++) uref_multi->values[i] = -- cgit v1.2.3 From 51e268423151fc7bb41945bde7843160b6a14c32 Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Mon, 22 Jun 2009 16:43:14 +0530 Subject: perf_counter tools: Define separate declarations for H/W and S/W events Define separate declarations for H/W and S/W events to: 1. Shorten name to save some space so that we can add more members 2. Fix alignment 3. Avoid declaring HARDWARE/SOFTWARE again and again. Removed unused CR(x, y) Signed-off-by: Jaswinder Singh Rajput Cc: Peter Zijlstra LKML-Reference: <1245669194.17153.6.camel@localhost.localdomain> Signed-off-by: Ingo Molnar --- tools/perf/util/parse-events.c | 44 +++++++++++++++++++++--------------------- 1 file changed, 22 insertions(+), 22 deletions(-) diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 35d04da38d6..12abab3a0d6 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -18,30 +18,30 @@ struct event_symbol { char *symbol; }; -#define C(x, y) .type = PERF_TYPE_##x, .config = PERF_COUNT_##y -#define CR(x, y) .type = PERF_TYPE_##x, .config = y +#define CHW(x) .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_##x +#define CSW(x) .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_##x static struct event_symbol event_symbols[] = { - { C(HARDWARE, HW_CPU_CYCLES), "cpu-cycles", }, - { C(HARDWARE, HW_CPU_CYCLES), "cycles", }, - { C(HARDWARE, HW_INSTRUCTIONS), "instructions", }, - { C(HARDWARE, HW_CACHE_REFERENCES), "cache-references", }, - { C(HARDWARE, HW_CACHE_MISSES), "cache-misses", }, - { C(HARDWARE, HW_BRANCH_INSTRUCTIONS),"branch-instructions", }, - { C(HARDWARE, HW_BRANCH_INSTRUCTIONS),"branches", }, - { C(HARDWARE, HW_BRANCH_MISSES), "branch-misses", }, - { C(HARDWARE, HW_BUS_CYCLES), "bus-cycles", }, - - { C(SOFTWARE, SW_CPU_CLOCK), "cpu-clock", }, - { C(SOFTWARE, SW_TASK_CLOCK), "task-clock", }, - { C(SOFTWARE, SW_PAGE_FAULTS), "page-faults", }, - { C(SOFTWARE, SW_PAGE_FAULTS), "faults", }, - { C(SOFTWARE, SW_PAGE_FAULTS_MIN), "minor-faults", }, - { C(SOFTWARE, SW_PAGE_FAULTS_MAJ), "major-faults", }, - { C(SOFTWARE, SW_CONTEXT_SWITCHES), "context-switches", }, - { C(SOFTWARE, SW_CONTEXT_SWITCHES), "cs", }, - { C(SOFTWARE, SW_CPU_MIGRATIONS), "cpu-migrations", }, - { C(SOFTWARE, SW_CPU_MIGRATIONS), "migrations", }, + { CHW(CPU_CYCLES), "cpu-cycles", }, + { CHW(CPU_CYCLES), "cycles", }, + { CHW(INSTRUCTIONS), "instructions", }, + { CHW(CACHE_REFERENCES), "cache-references", }, + { CHW(CACHE_MISSES), "cache-misses", }, + { CHW(BRANCH_INSTRUCTIONS), "branch-instructions", }, + { CHW(BRANCH_INSTRUCTIONS), "branches", }, + { CHW(BRANCH_MISSES), "branch-misses", }, + { CHW(BUS_CYCLES), "bus-cycles", }, + + { CSW(CPU_CLOCK), "cpu-clock", }, + { CSW(TASK_CLOCK), "task-clock", }, + { CSW(PAGE_FAULTS), "page-faults", }, + { CSW(PAGE_FAULTS), "faults", }, + { CSW(PAGE_FAULTS_MIN), "minor-faults", }, + { CSW(PAGE_FAULTS_MAJ), "major-faults", }, + { CSW(CONTEXT_SWITCHES), "context-switches", }, + { CSW(CONTEXT_SWITCHES), "cs", }, + { CSW(CPU_MIGRATIONS), "cpu-migrations", }, + { CSW(CPU_MIGRATIONS), "migrations", }, }; #define __PERF_COUNTER_FIELD(config, name) \ -- cgit v1.2.3 From 74d5b5889ea71a95d8924c08f8a7c6e2bdcbc0ba Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Mon, 22 Jun 2009 16:44:28 +0530 Subject: perf_counter tools: Introduce alias member in event_symbol By introducing alias member in event_symbol : 1. duplicate lines are removed, like: cpu-cycles and cycles branch-instructions and branches context-switches and cs cpu-migrations and migrations 2. We can also add alias for another events. Now ./perf list looks like : List of pre-defined events (to be used in -e): cpu-cycles OR cycles [Hardware event] instructions [Hardware event] cache-references [Hardware event] cache-misses [Hardware event] branch-instructions OR branches [Hardware event] branch-misses [Hardware event] bus-cycles [Hardware event] cpu-clock [Software event] task-clock [Software event] page-faults [Software event] faults [Software event] minor-faults [Software event] major-faults [Software event] context-switches OR cs [Software event] cpu-migrations OR migrations [Software event] rNNN [raw hardware event descriptor] Signed-off-by: Jaswinder Singh Rajput Cc: Peter Zijlstra LKML-Reference: <1245669268.17153.8.camel@localhost.localdomain> Signed-off-by: Ingo Molnar --- tools/perf/util/parse-events.c | 63 +++++++++++++++++++++++++----------------- 1 file changed, 38 insertions(+), 25 deletions(-) diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 12abab3a0d6..f5695486ad3 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -16,32 +16,29 @@ struct event_symbol { u8 type; u64 config; char *symbol; + char *alias; }; #define CHW(x) .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_##x #define CSW(x) .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_##x static struct event_symbol event_symbols[] = { - { CHW(CPU_CYCLES), "cpu-cycles", }, - { CHW(CPU_CYCLES), "cycles", }, - { CHW(INSTRUCTIONS), "instructions", }, - { CHW(CACHE_REFERENCES), "cache-references", }, - { CHW(CACHE_MISSES), "cache-misses", }, - { CHW(BRANCH_INSTRUCTIONS), "branch-instructions", }, - { CHW(BRANCH_INSTRUCTIONS), "branches", }, - { CHW(BRANCH_MISSES), "branch-misses", }, - { CHW(BUS_CYCLES), "bus-cycles", }, - - { CSW(CPU_CLOCK), "cpu-clock", }, - { CSW(TASK_CLOCK), "task-clock", }, - { CSW(PAGE_FAULTS), "page-faults", }, - { CSW(PAGE_FAULTS), "faults", }, - { CSW(PAGE_FAULTS_MIN), "minor-faults", }, - { CSW(PAGE_FAULTS_MAJ), "major-faults", }, - { CSW(CONTEXT_SWITCHES), "context-switches", }, - { CSW(CONTEXT_SWITCHES), "cs", }, - { CSW(CPU_MIGRATIONS), "cpu-migrations", }, - { CSW(CPU_MIGRATIONS), "migrations", }, + { CHW(CPU_CYCLES), "cpu-cycles", "cycles" }, + { CHW(INSTRUCTIONS), "instructions", "" }, + { CHW(CACHE_REFERENCES), "cache-references", "" }, + { CHW(CACHE_MISSES), "cache-misses", "" }, + { CHW(BRANCH_INSTRUCTIONS), "branch-instructions", "branches" }, + { CHW(BRANCH_MISSES), "branch-misses", "" }, + { CHW(BUS_CYCLES), "bus-cycles", "" }, + + { CSW(CPU_CLOCK), "cpu-clock", "" }, + { CSW(TASK_CLOCK), "task-clock", "" }, + { CSW(PAGE_FAULTS), "page-faults", "" }, + { CSW(PAGE_FAULTS), "faults", "" }, + { CSW(PAGE_FAULTS_MIN), "minor-faults", "" }, + { CSW(PAGE_FAULTS_MAJ), "major-faults", "" }, + { CSW(CONTEXT_SWITCHES), "context-switches", "cs" }, + { CSW(CPU_MIGRATIONS), "cpu-migrations", "migrations" }, }; #define __PERF_COUNTER_FIELD(config, name) \ @@ -196,6 +193,19 @@ static int parse_generic_hw_symbols(const char *str, struct perf_counter_attr *a return 0; } +static int check_events(const char *str, unsigned int i) +{ + if (!strncmp(str, event_symbols[i].symbol, + strlen(event_symbols[i].symbol))) + return 1; + + if (strlen(event_symbols[i].alias)) + if (!strncmp(str, event_symbols[i].alias, + strlen(event_symbols[i].alias))) + return 1; + return 0; +} + /* * Each event can have multiple symbolic names. * Symbolic names are (almost) exactly matched. @@ -235,9 +245,7 @@ static int parse_event_symbols(const char *str, struct perf_counter_attr *attr) } for (i = 0; i < ARRAY_SIZE(event_symbols); i++) { - if (!strncmp(str, event_symbols[i].symbol, - strlen(event_symbols[i].symbol))) { - + if (check_events(str, i)) { attr->type = event_symbols[i].type; attr->config = event_symbols[i].config; @@ -289,6 +297,7 @@ void print_events(void) { struct event_symbol *syms = event_symbols; unsigned int i, type, prev_type = -1; + char name[40]; fprintf(stderr, "\n"); fprintf(stderr, "List of pre-defined events (to be used in -e):\n"); @@ -301,14 +310,18 @@ void print_events(void) if (type != prev_type) fprintf(stderr, "\n"); - fprintf(stderr, " %-30s [%s]\n", syms->symbol, + if (strlen(syms->alias)) + sprintf(name, "%s OR %s", syms->symbol, syms->alias); + else + strcpy(name, syms->symbol); + fprintf(stderr, " %-40s [%s]\n", name, event_type_descriptors[type]); prev_type = type; } fprintf(stderr, "\n"); - fprintf(stderr, " %-30s [raw hardware event descriptor]\n", + fprintf(stderr, " %-40s [raw hardware event descriptor]\n", "rNNN"); fprintf(stderr, "\n"); -- cgit v1.2.3 From 520f2c346af463fa00924b236e092da482b344cc Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Mon, 22 Jun 2009 16:52:51 +0200 Subject: perf report: Output more symbol related debug data Print more symbol relocation related info under -vv. Signed-off-by: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo LKML-Reference: Signed-off-by: Ingo Molnar --- tools/perf/builtin-report.c | 5 +++-- tools/perf/util/symbol.c | 4 ++++ 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 5eb5566f0c9..ec230a0146e 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -797,7 +797,7 @@ resolve_symbol(struct thread *thread, struct map **mapp, { struct dso *dso = dsop ? *dsop : NULL; struct map *map = mapp ? *mapp : NULL; - uint64_t ip = *ipp; + u64 ip = *ipp; if (!thread) return NULL; @@ -814,7 +814,6 @@ resolve_symbol(struct thread *thread, struct map **mapp, *mapp = map; got_map: ip = map->map_ip(map, ip); - *ipp = ip; dso = map->dso; } else { @@ -828,6 +827,8 @@ got_map: dso = kernel_dso; } dprintf(" ...... dso: %s\n", dso ? dso->name : ""); + dprintf(" ...... map: %Lx -> %Lx\n", *ipp, ip); + *ipp = ip; if (dsop) *dsop = dso; diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 01b62fa0399..9c659ef6aec 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -535,6 +535,10 @@ static int dso__load_sym(struct dso *self, int fd, const char *name, gelf_getshdr(sec, &shdr); obj_start = sym.st_value; + if (verbose >= 2) + printf("adjusting symbol: st_value: %Lx sh_addr: %Lx sh_offset: %Lx\n", + (u64)sym.st_value, (u64)shdr.sh_addr, (u64)shdr.sh_offset); + sym.st_value -= shdr.sh_addr - shdr.sh_offset; f = symbol__new(sym.st_value, sym.st_size, -- cgit v1.2.3 From c0c22dbfa8ba3c5045eeb9c76d2822ffc44fefc3 Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Mon, 22 Jun 2009 20:47:26 +0530 Subject: perf_counter tools: Set alias for page-faults "faults" should be alias for "page-faults" Also fixed alignment and 80 characters issue Signed-off-by: Jaswinder Singh Rajput Cc: Peter Zijlstra LKML-Reference: <1245683846.12092.1.camel@localhost.localdomain> Signed-off-by: Ingo Molnar --- tools/perf/util/parse-events.c | 36 ++++++++++++++++++------------------ 1 file changed, 18 insertions(+), 18 deletions(-) diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index f5695486ad3..06af2fadcd8 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -33,8 +33,7 @@ static struct event_symbol event_symbols[] = { { CSW(CPU_CLOCK), "cpu-clock", "" }, { CSW(TASK_CLOCK), "task-clock", "" }, - { CSW(PAGE_FAULTS), "page-faults", "" }, - { CSW(PAGE_FAULTS), "faults", "" }, + { CSW(PAGE_FAULTS), "page-faults", "faults" }, { CSW(PAGE_FAULTS_MIN), "minor-faults", "" }, { CSW(PAGE_FAULTS_MAJ), "major-faults", "" }, { CSW(CONTEXT_SWITCHES), "context-switches", "cs" }, @@ -71,24 +70,24 @@ static char *sw_event_names[] = { #define MAX_ALIASES 8 -static char *hw_cache [][MAX_ALIASES] = { - { "L1-data" , "l1-d", "l1d" }, - { "L1-instruction" , "l1-i", "l1i" }, - { "L2" , "l2" }, - { "Data-TLB" , "dtlb", "d-tlb" }, - { "Instruction-TLB" , "itlb", "i-tlb" }, - { "Branch" , "bpu" , "btb", "bpc" }, +static char *hw_cache[][MAX_ALIASES] = { + { "L1-data", "l1-d", "l1d" }, + { "L1-instruction", "l1-i", "l1i" }, + { "L2", "l2" }, + { "Data-TLB", "dtlb", "d-tlb" }, + { "Instruction-TLB", "itlb", "i-tlb" }, + { "Branch", "bpu" , "btb", "bpc" }, }; -static char *hw_cache_op [][MAX_ALIASES] = { - { "Load" , "read" }, - { "Store" , "write" }, - { "Prefetch" , "speculative-read", "speculative-load" }, +static char *hw_cache_op[][MAX_ALIASES] = { + { "Load", "read" }, + { "Store", "write" }, + { "Prefetch", "speculative-read", "speculative-load" }, }; -static char *hw_cache_result [][MAX_ALIASES] = { - { "Reference" , "ops", "access" }, - { "Miss" }, +static char *hw_cache_result[][MAX_ALIASES] = { + { "Reference", "ops", "access" }, + { "Miss" }, }; char *event_name(int counter) @@ -160,7 +159,8 @@ static int parse_aliases(const char *str, char *names[][MAX_ALIASES], int size) return -1; } -static int parse_generic_hw_symbols(const char *str, struct perf_counter_attr *attr) +static int +parse_generic_hw_symbols(const char *str, struct perf_counter_attr *attr) { int cache_type = -1, cache_op = 0, cache_result = 0; @@ -201,7 +201,7 @@ static int check_events(const char *str, unsigned int i) if (strlen(event_symbols[i].alias)) if (!strncmp(str, event_symbols[i].alias, - strlen(event_symbols[i].alias))) + strlen(event_symbols[i].alias))) return 1; return 0; } -- cgit v1.2.3 From 4839641333d4593bfc4fb29aa3af10d36f607d5b Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Tue, 23 Jun 2009 01:34:19 +0100 Subject: jffs2: fix another potential leak on error path in scan.c Signed-off-by: David Woodhouse --- fs/jffs2/scan.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c index 7515e73e2bf..696686cc206 100644 --- a/fs/jffs2/scan.c +++ b/fs/jffs2/scan.c @@ -130,9 +130,9 @@ int jffs2_scan_medium(struct jffs2_sb_info *c) if (jffs2_sum_active()) { s = kzalloc(sizeof(struct jffs2_summary), GFP_KERNEL); if (!s) { - kfree(flashbuf); JFFS2_WARNING("Can't allocate memory for summary\n"); - return -ENOMEM; + ret = -ENOMEM; + goto out; } } -- cgit v1.2.3 From 9e06dd39f2b6d7e35981e0d7aded618686b32ccb Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Mon, 22 Jun 2009 18:05:12 -0700 Subject: drm/i915: correct suspend/resume ordering We need to save register state *after* idling GEM, clearing the ring, and uninstalling the IRQ handler, or we might end up saving bogus fence regs, for one. Our restore ordering should already be correct, since we do GEM, ring and IRQ init after restoring the last register state, which prevents us from clobbering things. I put this together to potentially address a bug, but I haven't heard back if it fixes it yet. However I think it stands on its own, so I'm sending it in. Signed-off-by: Jesse Barnes Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_drv.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 98560e1e899..e3cb4025e32 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -67,8 +67,6 @@ static int i915_suspend(struct drm_device *dev, pm_message_t state) pci_save_state(dev->pdev); - i915_save_state(dev); - /* If KMS is active, we do the leavevt stuff here */ if (drm_core_check_feature(dev, DRIVER_MODESET)) { if (i915_gem_idle(dev)) @@ -77,6 +75,8 @@ static int i915_suspend(struct drm_device *dev, pm_message_t state) drm_irq_uninstall(dev); } + i915_save_state(dev); + intel_opregion_free(dev, 1); if (state.event == PM_EVENT_SUSPEND) { -- cgit v1.2.3 From 3fbe18d65d66054667aaee849bed74674bb50062 Mon Sep 17 00:00:00 2001 From: Zhao Yakui Date: Mon, 22 Jun 2009 15:31:25 +0800 Subject: drm/i915: Add support for changing LVDS panel fitting using an output property. Previously the driver would always scale the chosen video mode to fill the panel. This adds 1:1 and maintain-aspect-ratio scaling modes. v2: the drm_calloc/drm_free is replaced by kzalloc/kfree based on Eric's suggestion. Signed-off-by: Zhao Yakui Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_reg.h | 16 +++ drivers/gpu/drm/i915/intel_lvds.c | 285 +++++++++++++++++++++++++++++++++++--- 2 files changed, 280 insertions(+), 21 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 544d5677a2f..88bf7521405 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -847,9 +847,25 @@ #define HORIZ_INTERP_MASK (3 << 6) #define HORIZ_AUTO_SCALE (1 << 5) #define PANEL_8TO6_DITHER_ENABLE (1 << 3) +#define PFIT_FILTER_FUZZY (0 << 24) +#define PFIT_SCALING_AUTO (0 << 26) +#define PFIT_SCALING_PROGRAMMED (1 << 26) +#define PFIT_SCALING_PILLAR (2 << 26) +#define PFIT_SCALING_LETTER (3 << 26) #define PFIT_PGM_RATIOS 0x61234 #define PFIT_VERT_SCALE_MASK 0xfff00000 #define PFIT_HORIZ_SCALE_MASK 0x0000fff0 +/* Pre-965 */ +#define PFIT_VERT_SCALE_SHIFT 20 +#define PFIT_VERT_SCALE_MASK 0xfff00000 +#define PFIT_HORIZ_SCALE_SHIFT 4 +#define PFIT_HORIZ_SCALE_MASK 0x0000fff0 +/* 965+ */ +#define PFIT_VERT_SCALE_SHIFT_965 16 +#define PFIT_VERT_SCALE_MASK_965 0x1fff0000 +#define PFIT_HORIZ_SCALE_SHIFT_965 0 +#define PFIT_HORIZ_SCALE_MASK_965 0x00001fff + #define PFIT_AUTO_RATIOS 0x61238 /* Backlight control */ diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index 345e5055f1c..f416ead7120 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -39,6 +39,21 @@ #define I915_LVDS "i915_lvds" +/* + * the following four scaling options are defined. + * #define DRM_MODE_SCALE_NON_GPU 0 + * #define DRM_MODE_SCALE_FULLSCREEN 1 + * #define DRM_MODE_SCALE_NO_SCALE 2 + * #define DRM_MODE_SCALE_ASPECT 3 + */ + +/* Private structure for the integrated LVDS support */ +struct intel_lvds_priv { + int fitting_mode; + u32 pfit_control; + u32 pfit_pgm_ratios; +}; + /** * Sets the backlight level. * @@ -213,10 +228,24 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { + /* + * float point operation is not supported . So the PANEL_RATIO_FACTOR + * is defined, which can avoid the float point computation when + * calculating the panel ratio. + */ +#define PANEL_RATIO_FACTOR 8192 struct drm_device *dev = encoder->dev; struct drm_i915_private *dev_priv = dev->dev_private; struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc); struct drm_encoder *tmp_encoder; + struct intel_output *intel_output = enc_to_intel_output(encoder); + struct intel_lvds_priv *lvds_priv = intel_output->dev_priv; + u32 pfit_control = 0, pfit_pgm_ratios = 0; + int left_border = 0, right_border = 0, top_border = 0; + int bottom_border = 0; + bool border = 0; + int panel_ratio, desired_ratio, vert_scale, horiz_scale; + int horiz_ratio, vert_ratio; /* Should never happen!! */ if (!IS_I965G(dev) && intel_crtc->pipe == 0) { @@ -232,7 +261,9 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder, return false; } } - + /* If we don't have a panel mode, there is nothing we can do */ + if (dev_priv->panel_fixed_mode == NULL) + return true; /* * If we have timings from the BIOS for the panel, put them in * to the adjusted mode. The CRTC will be set up for this mode, @@ -256,6 +287,191 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder, drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V); } + /* Make sure pre-965s set dither correctly */ + if (!IS_I965G(dev)) { + if (dev_priv->panel_wants_dither || dev_priv->lvds_dither) + pfit_control |= PANEL_8TO6_DITHER_ENABLE; + } + + /* Native modes don't need fitting */ + if (adjusted_mode->hdisplay == mode->hdisplay && + adjusted_mode->vdisplay == mode->vdisplay) { + pfit_pgm_ratios = 0; + border = 0; + goto out; + } + + /* 965+ wants fuzzy fitting */ + if (IS_I965G(dev)) + pfit_control |= (intel_crtc->pipe << PFIT_PIPE_SHIFT) | + PFIT_FILTER_FUZZY; + + /* + * Deal with panel fitting options. Figure out how to stretch the + * image based on its aspect ratio & the current panel fitting mode. + */ + panel_ratio = adjusted_mode->hdisplay * PANEL_RATIO_FACTOR / + adjusted_mode->vdisplay; + desired_ratio = mode->hdisplay * PANEL_RATIO_FACTOR / + mode->vdisplay; + /* + * Enable automatic panel scaling for non-native modes so that they fill + * the screen. Should be enabled before the pipe is enabled, according + * to register description and PRM. + * Change the value here to see the borders for debugging + */ + I915_WRITE(BCLRPAT_A, 0); + I915_WRITE(BCLRPAT_B, 0); + + switch (lvds_priv->fitting_mode) { + case DRM_MODE_SCALE_NO_SCALE: + /* + * For centered modes, we have to calculate border widths & + * heights and modify the values programmed into the CRTC. + */ + left_border = (adjusted_mode->hdisplay - mode->hdisplay) / 2; + right_border = left_border; + if (mode->hdisplay & 1) + right_border++; + top_border = (adjusted_mode->vdisplay - mode->vdisplay) / 2; + bottom_border = top_border; + if (mode->vdisplay & 1) + bottom_border++; + /* Set active & border values */ + adjusted_mode->crtc_hdisplay = mode->hdisplay; + adjusted_mode->crtc_hblank_start = mode->hdisplay + + right_border - 1; + adjusted_mode->crtc_hblank_end = adjusted_mode->crtc_htotal - + left_border - 1; + adjusted_mode->crtc_hsync_start = + adjusted_mode->crtc_hblank_start; + adjusted_mode->crtc_hsync_end = + adjusted_mode->crtc_hblank_end; + adjusted_mode->crtc_vdisplay = mode->vdisplay; + adjusted_mode->crtc_vblank_start = mode->vdisplay + + bottom_border - 1; + adjusted_mode->crtc_vblank_end = adjusted_mode->crtc_vtotal - + top_border - 1; + adjusted_mode->crtc_vsync_start = + adjusted_mode->crtc_vblank_start; + adjusted_mode->crtc_vsync_end = + adjusted_mode->crtc_vblank_end; + border = 1; + break; + case DRM_MODE_SCALE_ASPECT: + /* Scale but preserve the spect ratio */ + pfit_control |= PFIT_ENABLE; + if (IS_I965G(dev)) { + /* 965+ is easy, it does everything in hw */ + if (panel_ratio > desired_ratio) + pfit_control |= PFIT_SCALING_PILLAR; + else if (panel_ratio < desired_ratio) + pfit_control |= PFIT_SCALING_LETTER; + else + pfit_control |= PFIT_SCALING_AUTO; + } else { + /* + * For earlier chips we have to calculate the scaling + * ratio by hand and program it into the + * PFIT_PGM_RATIO register + */ + u32 horiz_bits, vert_bits, bits = 12; + horiz_ratio = mode->hdisplay * PANEL_RATIO_FACTOR/ + adjusted_mode->hdisplay; + vert_ratio = mode->vdisplay * PANEL_RATIO_FACTOR/ + adjusted_mode->vdisplay; + horiz_scale = adjusted_mode->hdisplay * + PANEL_RATIO_FACTOR / mode->hdisplay; + vert_scale = adjusted_mode->vdisplay * + PANEL_RATIO_FACTOR / mode->vdisplay; + + /* retain aspect ratio */ + if (panel_ratio > desired_ratio) { /* Pillar */ + u32 scaled_width; + scaled_width = mode->hdisplay * vert_scale / + PANEL_RATIO_FACTOR; + horiz_ratio = vert_ratio; + pfit_control |= (VERT_AUTO_SCALE | + VERT_INTERP_BILINEAR | + HORIZ_INTERP_BILINEAR); + /* Pillar will have left/right borders */ + left_border = (adjusted_mode->hdisplay - + scaled_width) / 2; + right_border = left_border; + if (mode->hdisplay & 1) /* odd resolutions */ + right_border++; + adjusted_mode->crtc_hdisplay = scaled_width; + adjusted_mode->crtc_hblank_start = + scaled_width + right_border - 1; + adjusted_mode->crtc_hblank_end = + adjusted_mode->crtc_htotal - left_border - 1; + adjusted_mode->crtc_hsync_start = + adjusted_mode->crtc_hblank_start; + adjusted_mode->crtc_hsync_end = + adjusted_mode->crtc_hblank_end; + border = 1; + } else if (panel_ratio < desired_ratio) { /* letter */ + u32 scaled_height = mode->vdisplay * + horiz_scale / PANEL_RATIO_FACTOR; + vert_ratio = horiz_ratio; + pfit_control |= (HORIZ_AUTO_SCALE | + VERT_INTERP_BILINEAR | + HORIZ_INTERP_BILINEAR); + /* Letterbox will have top/bottom border */ + top_border = (adjusted_mode->vdisplay - + scaled_height) / 2; + bottom_border = top_border; + if (mode->vdisplay & 1) + bottom_border++; + adjusted_mode->crtc_vdisplay = scaled_height; + adjusted_mode->crtc_vblank_start = + scaled_height + bottom_border - 1; + adjusted_mode->crtc_vblank_end = + adjusted_mode->crtc_vtotal - top_border - 1; + adjusted_mode->crtc_vsync_start = + adjusted_mode->crtc_vblank_start; + adjusted_mode->crtc_vsync_end = + adjusted_mode->crtc_vblank_end; + border = 1; + } else { + /* Aspects match, Let hw scale both directions */ + pfit_control |= (VERT_AUTO_SCALE | + HORIZ_AUTO_SCALE | + VERT_INTERP_BILINEAR | + HORIZ_INTERP_BILINEAR); + } + horiz_bits = (1 << bits) * horiz_ratio / + PANEL_RATIO_FACTOR; + vert_bits = (1 << bits) * vert_ratio / + PANEL_RATIO_FACTOR; + pfit_pgm_ratios = + ((vert_bits << PFIT_VERT_SCALE_SHIFT) & + PFIT_VERT_SCALE_MASK) | + ((horiz_bits << PFIT_HORIZ_SCALE_SHIFT) & + PFIT_HORIZ_SCALE_MASK); + } + break; + + case DRM_MODE_SCALE_FULLSCREEN: + /* + * Full scaling, even if it changes the aspect ratio. + * Fortunately this is all done for us in hw. + */ + pfit_control |= PFIT_ENABLE; + if (IS_I965G(dev)) + pfit_control |= PFIT_SCALING_AUTO; + else + pfit_control |= (VERT_AUTO_SCALE | HORIZ_AUTO_SCALE | + VERT_INTERP_BILINEAR | + HORIZ_INTERP_BILINEAR); + break; + default: + break; + } + +out: + lvds_priv->pfit_control = pfit_control; + lvds_priv->pfit_pgm_ratios = pfit_pgm_ratios; /* * XXX: It would be nice to support lower refresh rates on the * panels to reduce power consumption, and perhaps match the @@ -301,8 +517,8 @@ static void intel_lvds_mode_set(struct drm_encoder *encoder, { struct drm_device *dev = encoder->dev; struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc); - u32 pfit_control; + struct intel_output *intel_output = enc_to_intel_output(encoder); + struct intel_lvds_priv *lvds_priv = intel_output->dev_priv; /* * The LVDS pin pair will already have been turned on in the @@ -319,22 +535,8 @@ static void intel_lvds_mode_set(struct drm_encoder *encoder, * screen. Should be enabled before the pipe is enabled, according to * register description and PRM. */ - if (mode->hdisplay != adjusted_mode->hdisplay || - mode->vdisplay != adjusted_mode->vdisplay) - pfit_control = (PFIT_ENABLE | VERT_AUTO_SCALE | - HORIZ_AUTO_SCALE | VERT_INTERP_BILINEAR | - HORIZ_INTERP_BILINEAR); - else - pfit_control = 0; - - if (!IS_I965G(dev)) { - if (dev_priv->panel_wants_dither || dev_priv->lvds_dither) - pfit_control |= PANEL_8TO6_DITHER_ENABLE; - } - else - pfit_control |= intel_crtc->pipe << PFIT_PIPE_SHIFT; - - I915_WRITE(PFIT_CONTROL, pfit_control); + I915_WRITE(PFIT_PGM_RATIOS, lvds_priv->pfit_pgm_ratios); + I915_WRITE(PFIT_CONTROL, lvds_priv->pfit_control); } /** @@ -406,6 +608,34 @@ static int intel_lvds_set_property(struct drm_connector *connector, struct drm_property *property, uint64_t value) { + struct drm_device *dev = connector->dev; + struct intel_output *intel_output = + to_intel_output(connector); + + if (property == dev->mode_config.scaling_mode_property && + connector->encoder) { + struct drm_crtc *crtc = connector->encoder->crtc; + struct intel_lvds_priv *lvds_priv = intel_output->dev_priv; + if (value == DRM_MODE_SCALE_NON_GPU) { + DRM_DEBUG_KMS(I915_LVDS, + "non_GPU property is unsupported\n"); + return 0; + } + if (lvds_priv->fitting_mode == value) { + /* the LVDS scaling property is not changed */ + return 0; + } + lvds_priv->fitting_mode = value; + if (crtc && crtc->enabled) { + /* + * If the CRTC is enabled, the display will be changed + * according to the new panel fitting mode. + */ + drm_crtc_helper_set_mode(crtc, &crtc->mode, + crtc->x, crtc->y, crtc->fb); + } + } + return 0; } @@ -518,6 +748,7 @@ void intel_lvds_init(struct drm_device *dev) struct drm_encoder *encoder; struct drm_display_mode *scan; /* *modes, *bios_mode; */ struct drm_crtc *crtc; + struct intel_lvds_priv *lvds_priv; u32 lvds; int pipe, gpio = GPIOC; @@ -531,7 +762,8 @@ void intel_lvds_init(struct drm_device *dev) gpio = PCH_GPIOC; } - intel_output = kzalloc(sizeof(struct intel_output), GFP_KERNEL); + intel_output = kzalloc(sizeof(struct intel_output) + + sizeof(struct intel_lvds_priv), GFP_KERNEL); if (!intel_output) { return; } @@ -553,7 +785,18 @@ void intel_lvds_init(struct drm_device *dev) connector->interlace_allowed = false; connector->doublescan_allowed = false; + lvds_priv = (struct intel_lvds_priv *)(intel_output + 1); + intel_output->dev_priv = lvds_priv; + /* create the scaling mode property */ + drm_mode_create_scaling_mode_property(dev); + /* + * the initial panel fitting mode will be FULL_SCREEN. + */ + drm_connector_attach_property(&intel_output->base, + dev->mode_config.scaling_mode_property, + DRM_MODE_SCALE_FULLSCREEN); + lvds_priv->fitting_mode = DRM_MODE_SCALE_FULLSCREEN; /* * LVDS discovery: * 1) check for EDID on DDC @@ -649,5 +892,5 @@ failed: if (intel_output->ddc_bus) intel_i2c_destroy(intel_output->ddc_bus); drm_connector_cleanup(connector); - kfree(connector); + kfree(intel_output); } -- cgit v1.2.3 From aa0261f230105b86409e29bbe851b09830d93d50 Mon Sep 17 00:00:00 2001 From: Zhao Yakui Date: Mon, 22 Jun 2009 15:31:26 +0800 Subject: drm/i915: Don't change the blank/sync width when calculating scaled modes Also, use the border instead of border minus one. At the same time, make sure the horizontal border and hsync are even for the LVDS that works in dual-channel mode. So both horizontal border and hsync start are also changed to be even, even for the LVDS in single-channel mode. https://bugs.freedesktop.org/show_bug.cgi?id=20951 Signed-off-by: Zhao Yakui Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/intel_lvds.c | 91 +++++++++++++++++++++++++++++++-------- 1 file changed, 73 insertions(+), 18 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index f416ead7120..9564ca44a97 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -246,6 +246,9 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder, bool border = 0; int panel_ratio, desired_ratio, vert_scale, horiz_scale; int horiz_ratio, vert_ratio; + u32 hsync_width, vsync_width; + u32 hblank_width, vblank_width; + u32 hsync_pos, vsync_pos; /* Should never happen!! */ if (!IS_I965G(dev) && intel_crtc->pipe == 0) { @@ -306,6 +309,14 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder, pfit_control |= (intel_crtc->pipe << PFIT_PIPE_SHIFT) | PFIT_FILTER_FUZZY; + hsync_width = adjusted_mode->crtc_hsync_end - + adjusted_mode->crtc_hsync_start; + vsync_width = adjusted_mode->crtc_vsync_end - + adjusted_mode->crtc_vsync_start; + hblank_width = adjusted_mode->crtc_hblank_end - + adjusted_mode->crtc_hblank_start; + vblank_width = adjusted_mode->crtc_vblank_end - + adjusted_mode->crtc_vblank_start; /* * Deal with panel fitting options. Figure out how to stretch the * image based on its aspect ratio & the current panel fitting mode. @@ -339,23 +350,39 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder, bottom_border++; /* Set active & border values */ adjusted_mode->crtc_hdisplay = mode->hdisplay; + /* Keep the boder be even */ + if (right_border & 1) + right_border++; + /* use the border directly instead of border minuse one */ adjusted_mode->crtc_hblank_start = mode->hdisplay + - right_border - 1; - adjusted_mode->crtc_hblank_end = adjusted_mode->crtc_htotal - - left_border - 1; + right_border; + /* keep the blank width constant */ + adjusted_mode->crtc_hblank_end = + adjusted_mode->crtc_hblank_start + hblank_width; + /* get the hsync pos relative to hblank start */ + hsync_pos = (hblank_width - hsync_width) / 2; + /* keep the hsync pos be even */ + if (hsync_pos & 1) + hsync_pos++; adjusted_mode->crtc_hsync_start = - adjusted_mode->crtc_hblank_start; + adjusted_mode->crtc_hblank_start + hsync_pos; + /* keep the hsync width constant */ adjusted_mode->crtc_hsync_end = - adjusted_mode->crtc_hblank_end; + adjusted_mode->crtc_hsync_start + hsync_width; adjusted_mode->crtc_vdisplay = mode->vdisplay; + /* use the border instead of border minus one */ adjusted_mode->crtc_vblank_start = mode->vdisplay + - bottom_border - 1; - adjusted_mode->crtc_vblank_end = adjusted_mode->crtc_vtotal - - top_border - 1; + bottom_border; + /* keep the vblank width constant */ + adjusted_mode->crtc_vblank_end = + adjusted_mode->crtc_vblank_start + vblank_width; + /* get the vsync start postion relative to vblank start */ + vsync_pos = (vblank_width - vsync_width) / 2; adjusted_mode->crtc_vsync_start = - adjusted_mode->crtc_vblank_start; + adjusted_mode->crtc_vblank_start + vsync_pos; + /* keep the vsync width constant */ adjusted_mode->crtc_vsync_end = - adjusted_mode->crtc_vblank_end; + adjusted_mode->crtc_vblank_start + vsync_width; border = 1; break; case DRM_MODE_SCALE_ASPECT: @@ -400,15 +427,32 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder, right_border = left_border; if (mode->hdisplay & 1) /* odd resolutions */ right_border++; + /* keep the border be even */ + if (right_border & 1) + right_border++; adjusted_mode->crtc_hdisplay = scaled_width; + /* use border instead of border minus one */ adjusted_mode->crtc_hblank_start = - scaled_width + right_border - 1; + scaled_width + right_border; + /* keep the hblank width constant */ adjusted_mode->crtc_hblank_end = - adjusted_mode->crtc_htotal - left_border - 1; + adjusted_mode->crtc_hblank_start + + hblank_width; + /* + * get the hsync start pos relative to + * hblank start + */ + hsync_pos = (hblank_width - hsync_width) / 2; + /* keep the hsync_pos be even */ + if (hsync_pos & 1) + hsync_pos++; adjusted_mode->crtc_hsync_start = - adjusted_mode->crtc_hblank_start; + adjusted_mode->crtc_hblank_start + + hsync_pos; + /* keept hsync width constant */ adjusted_mode->crtc_hsync_end = - adjusted_mode->crtc_hblank_end; + adjusted_mode->crtc_hsync_start + + hsync_width; border = 1; } else if (panel_ratio < desired_ratio) { /* letter */ u32 scaled_height = mode->vdisplay * @@ -424,14 +468,25 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder, if (mode->vdisplay & 1) bottom_border++; adjusted_mode->crtc_vdisplay = scaled_height; + /* use border instead of border minus one */ adjusted_mode->crtc_vblank_start = - scaled_height + bottom_border - 1; + scaled_height + bottom_border; + /* keep the vblank width constant */ adjusted_mode->crtc_vblank_end = - adjusted_mode->crtc_vtotal - top_border - 1; + adjusted_mode->crtc_vblank_start + + vblank_width; + /* + * get the vsync start pos relative to + * vblank start + */ + vsync_pos = (vblank_width - vsync_width) / 2; adjusted_mode->crtc_vsync_start = - adjusted_mode->crtc_vblank_start; + adjusted_mode->crtc_vblank_start + + vsync_pos; + /* keep the vsync width constant */ adjusted_mode->crtc_vsync_end = - adjusted_mode->crtc_vblank_end; + adjusted_mode->crtc_vsync_start + + vsync_width; border = 1; } else { /* Aspects match, Let hw scale both directions */ -- cgit v1.2.3 From cfd43c025ddef0b1c723bb9811d2bde52b285710 Mon Sep 17 00:00:00 2001 From: Krzysztof Halasa Date: Sat, 20 Jun 2009 00:31:28 +0200 Subject: drm/i915: Fix size_t handling in off-by-default debug printfs Signed-off-by: Krzysztof Halasa Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_gem.c | 6 +++--- drivers/gpu/drm/i915/i915_gem_debug.c | 2 +- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index fd2b8bdffe3..8660b2144b2 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1006,7 +1006,7 @@ i915_gem_set_domain_ioctl(struct drm_device *dev, void *data, mutex_lock(&dev->struct_mutex); #if WATCH_BUF - DRM_INFO("set_domain_ioctl %p(%d), %08x %08x\n", + DRM_INFO("set_domain_ioctl %p(%zd), %08x %08x\n", obj, obj->size, read_domains, write_domain); #endif if (read_domains & I915_GEM_DOMAIN_GTT) { @@ -1050,7 +1050,7 @@ i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data, } #if WATCH_BUF - DRM_INFO("%s: sw_finish %d (%p %d)\n", + DRM_INFO("%s: sw_finish %d (%p %zd)\n", __func__, args->handle, obj, obj->size); #endif obj_priv = obj->driver_private; @@ -2423,7 +2423,7 @@ i915_gem_object_bind_to_gtt(struct drm_gem_object *obj, unsigned alignment) } #if WATCH_BUF - DRM_INFO("Binding object of size %d at 0x%08x\n", + DRM_INFO("Binding object of size %zd at 0x%08x\n", obj->size, obj_priv->gtt_offset); #endif ret = i915_gem_object_get_pages(obj); diff --git a/drivers/gpu/drm/i915/i915_gem_debug.c b/drivers/gpu/drm/i915/i915_gem_debug.c index 8d0b943e2c5..f94b5985f73 100644 --- a/drivers/gpu/drm/i915/i915_gem_debug.c +++ b/drivers/gpu/drm/i915/i915_gem_debug.c @@ -143,7 +143,7 @@ i915_gem_object_check_coherency(struct drm_gem_object *obj, int handle) uint32_t *backing_map = NULL; int bad_count = 0; - DRM_INFO("%s: checking coherency of object %p@0x%08x (%d, %dkb):\n", + DRM_INFO("%s: checking coherency of object %p@0x%08x (%d, %zdkb):\n", __func__, obj, obj_priv->gtt_offset, handle, obj->size / 1024); -- cgit v1.2.3 From 921809a5831821eaf86e799c4b3d7c666ee352b1 Mon Sep 17 00:00:00 2001 From: Krzysztof Halasa Date: Fri, 19 Jun 2009 22:35:09 +0200 Subject: drm/i915: Catch up to obj_priv->page_list rename in disabled debug code. Signed-off-by: Krzysztof Halasa Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_gem_debug.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_debug.c b/drivers/gpu/drm/i915/i915_gem_debug.c index f94b5985f73..e602614bd3f 100644 --- a/drivers/gpu/drm/i915/i915_gem_debug.c +++ b/drivers/gpu/drm/i915/i915_gem_debug.c @@ -87,7 +87,7 @@ i915_gem_dump_object(struct drm_gem_object *obj, int len, chunk_len = page_len - chunk; if (chunk_len > 128) chunk_len = 128; - i915_gem_dump_page(obj_priv->page_list[page], + i915_gem_dump_page(obj_priv->pages[page], chunk, chunk + chunk_len, obj_priv->gtt_offset + page * PAGE_SIZE, @@ -157,7 +157,7 @@ i915_gem_object_check_coherency(struct drm_gem_object *obj, int handle) for (page = 0; page < obj->size / PAGE_SIZE; page++) { int i; - backing_map = kmap_atomic(obj_priv->page_list[page], KM_USER0); + backing_map = kmap_atomic(obj_priv->pages[page], KM_USER0); if (backing_map == NULL) { DRM_ERROR("failed to map backing page\n"); -- cgit v1.2.3 From 8ed9a5bc9c9425ef93a1b03b418300a5e18b2361 Mon Sep 17 00:00:00 2001 From: "ling.ma@intel.com" Date: Mon, 22 Jun 2009 22:08:35 +0800 Subject: drm/i915: set TV detection mode when tv is already connected We used load_detect_temp flag to determine whether to set tv to the test mode. However if the TV already has a mode set, we still need to set the test mode to determine connection. This results in blinking, but there is no other reliable way to determine TV connection. freedesktop.org bug #22035 Signed-off-by: Ma Ling Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/intel_tv.c | 53 +++++++++++++++++++---------------------- 1 file changed, 25 insertions(+), 28 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c index ea68992e441..a43c98e3f07 100644 --- a/drivers/gpu/drm/i915/intel_tv.c +++ b/drivers/gpu/drm/i915/intel_tv.c @@ -1383,34 +1383,31 @@ intel_tv_detect_type (struct drm_crtc *crtc, struct intel_output *intel_output) /* * Detect TV by polling) */ - if (intel_output->load_detect_temp) { - /* TV not currently running, prod it with destructive detect */ - save_tv_dac = tv_dac; - tv_ctl = I915_READ(TV_CTL); - save_tv_ctl = tv_ctl; - tv_ctl &= ~TV_ENC_ENABLE; - tv_ctl &= ~TV_TEST_MODE_MASK; - tv_ctl |= TV_TEST_MODE_MONITOR_DETECT; - tv_dac &= ~TVDAC_SENSE_MASK; - tv_dac &= ~DAC_A_MASK; - tv_dac &= ~DAC_B_MASK; - tv_dac &= ~DAC_C_MASK; - tv_dac |= (TVDAC_STATE_CHG_EN | - TVDAC_A_SENSE_CTL | - TVDAC_B_SENSE_CTL | - TVDAC_C_SENSE_CTL | - DAC_CTL_OVERRIDE | - DAC_A_0_7_V | - DAC_B_0_7_V | - DAC_C_0_7_V); - I915_WRITE(TV_CTL, tv_ctl); - I915_WRITE(TV_DAC, tv_dac); - intel_wait_for_vblank(dev); - tv_dac = I915_READ(TV_DAC); - I915_WRITE(TV_DAC, save_tv_dac); - I915_WRITE(TV_CTL, save_tv_ctl); - intel_wait_for_vblank(dev); - } + save_tv_dac = tv_dac; + tv_ctl = I915_READ(TV_CTL); + save_tv_ctl = tv_ctl; + tv_ctl &= ~TV_ENC_ENABLE; + tv_ctl &= ~TV_TEST_MODE_MASK; + tv_ctl |= TV_TEST_MODE_MONITOR_DETECT; + tv_dac &= ~TVDAC_SENSE_MASK; + tv_dac &= ~DAC_A_MASK; + tv_dac &= ~DAC_B_MASK; + tv_dac &= ~DAC_C_MASK; + tv_dac |= (TVDAC_STATE_CHG_EN | + TVDAC_A_SENSE_CTL | + TVDAC_B_SENSE_CTL | + TVDAC_C_SENSE_CTL | + DAC_CTL_OVERRIDE | + DAC_A_0_7_V | + DAC_B_0_7_V | + DAC_C_0_7_V); + I915_WRITE(TV_CTL, tv_ctl); + I915_WRITE(TV_DAC, tv_dac); + intel_wait_for_vblank(dev); + tv_dac = I915_READ(TV_DAC); + I915_WRITE(TV_DAC, save_tv_dac); + I915_WRITE(TV_CTL, save_tv_ctl); + intel_wait_for_vblank(dev); /* * A B C * 0 1 1 Composite -- cgit v1.2.3 From 1b16de0b070dc6fa29b7a99980eabe3325ee5983 Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Mon, 22 Jun 2009 11:30:30 -0700 Subject: drm/i915: fix LFP data fetch Apparently the proper way to do this is to use the LFP data pointer block to figure out the LFP data block entry size, then use that plus the panel index to calculate an offset into the LFP data block array. Similar fix has already been pushed to the 2D driver to fix fdo bug applied to the VBIOS reader, and things look sane). Signed-off-by: Jesse Barnes Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/intel_bios.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index cdd126d068a..716409a5724 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -99,9 +99,11 @@ parse_lfp_panel_data(struct drm_i915_private *dev_priv, { struct bdb_lvds_options *lvds_options; struct bdb_lvds_lfp_data *lvds_lfp_data; + struct bdb_lvds_lfp_data_ptrs *lvds_lfp_data_ptrs; struct bdb_lvds_lfp_data_entry *entry; struct lvds_dvo_timing *dvo_timing; struct drm_display_mode *panel_fixed_mode; + int lfp_data_size; /* Defaults if we can't find VBT info */ dev_priv->lvds_dither = 0; @@ -119,9 +121,17 @@ parse_lfp_panel_data(struct drm_i915_private *dev_priv, if (!lvds_lfp_data) return; + lvds_lfp_data_ptrs = find_section(bdb, BDB_LVDS_LFP_DATA_PTRS); + if (!lvds_lfp_data_ptrs) + return; + dev_priv->lvds_vbt = 1; - entry = &lvds_lfp_data->data[lvds_options->panel_type]; + lfp_data_size = lvds_lfp_data_ptrs->ptr[1].dvo_timing_offset - + lvds_lfp_data_ptrs->ptr[0].dvo_timing_offset; + entry = (struct bdb_lvds_lfp_data_entry *) + ((uint8_t *)lvds_lfp_data->data + (lfp_data_size * + lvds_options->panel_type)); dvo_timing = &entry->dvo_timing; panel_fixed_mode = kzalloc(sizeof(*panel_fixed_mode), GFP_KERNEL); -- cgit v1.2.3 From 56d21b07d44e0a33ab846f4f08e9e33bd87e5d4b Mon Sep 17 00:00:00 2001 From: Zhenyu Wang Date: Wed, 17 Jun 2009 09:43:25 +0800 Subject: drm/i915: Fix HDMI regression introduced in new chipset support Remove wrongly added NULL_PACKETS_DURING_VSYNC setting for HDMI. Signed-off-by: Zhenyu Wang Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/intel_hdmi.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 3955476eb64..9e30daae37d 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -57,8 +57,7 @@ static void intel_hdmi_mode_set(struct drm_encoder *encoder, sdvox = SDVO_ENCODING_HDMI | SDVO_BORDER_ENABLE | SDVO_VSYNC_ACTIVE_HIGH | - SDVO_HSYNC_ACTIVE_HIGH | - SDVO_NULL_PACKETS_DURING_VSYNC; + SDVO_HSYNC_ACTIVE_HIGH; if (hdmi_priv->has_hdmi_sink) sdvox |= SDVO_AUDIO_ENABLE; -- cgit v1.2.3 From dee412066aeb16c43cf31599948c1a1de385df56 Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Tue, 23 Jun 2009 02:22:39 +0530 Subject: perf stat: Fix command option / manpage -l is not supported, it should be -S for scale. Signed-off-by: Jaswinder Singh Rajput Cc: Peter Zijlstra LKML-Reference: <1245703959.6167.16.camel@localhost.localdomain> Signed-off-by: Ingo Molnar --- tools/perf/Documentation/perf-stat.txt | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt index c368a72721d..0d74346d21a 100644 --- a/tools/perf/Documentation/perf-stat.txt +++ b/tools/perf/Documentation/perf-stat.txt @@ -8,8 +8,8 @@ perf-stat - Run a command and gather performance counter statistics SYNOPSIS -------- [verse] -'perf stat' [-e | --event=EVENT] [-l] [-a] -'perf stat' [-e | --event=EVENT] [-l] [-a] -- [] +'perf stat' [-e | --event=EVENT] [-S] [-a] +'perf stat' [-e | --event=EVENT] [-S] [-a] -- [] DESCRIPTION ----------- @@ -40,7 +40,7 @@ OPTIONS -a:: system-wide collection --l:: +-S:: scale counter values EXAMPLES -- cgit v1.2.3 From 854c879f5abf309ebd378bea1ee41acf4ddf7194 Mon Sep 17 00:00:00 2001 From: Pekka J Enberg Date: Mon, 22 Jun 2009 17:39:41 +0300 Subject: x86: Move init_gbpages() to setup_arch() The init_gbpages() function is conditionally called from init_memory_mapping() function. There are two call-sites where this 'after_bootmem' condition can be true: setup_arch() and mem_init() via pci_iommu_alloc(). Therefore, it's safe to move the call to init_gbpages() to setup_arch() as it's always called before mem_init(). This removes an after_bootmem use - paving the way to remove all uses of that state variable. Signed-off-by: Pekka Enberg Acked-by: Yinghai Lu LKML-Reference: Signed-off-by: Ingo Molnar --- arch/x86/kernel/setup.c | 16 ++++++++++++++++ arch/x86/mm/init.c | 17 ----------------- 2 files changed, 16 insertions(+), 17 deletions(-) diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index be5ae80f897..de2cab13284 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -289,6 +289,20 @@ void * __init extend_brk(size_t size, size_t align) return ret; } +#ifdef CONFIG_X86_64 +static void __init init_gbpages(void) +{ + if (direct_gbpages && cpu_has_gbpages) + printk(KERN_INFO "Using GB pages for direct mapping\n"); + else + direct_gbpages = 0; +} +#else +static inline void init_gbpages(void) +{ +} +#endif + static void __init reserve_brk(void) { if (_brk_end > _brk_start) @@ -871,6 +885,8 @@ void __init setup_arch(char **cmdline_p) reserve_brk(); + init_gbpages(); + /* max_pfn_mapped is updated here */ max_low_pfn_mapped = init_memory_mapping(0, max_low_pfn< Date: Tue, 23 Jun 2009 10:00:58 +0530 Subject: timers: Fix timer_migration interface which accepts any number as input Poornima Nayek reported: | Timer migration interface /proc/sys/kernel/timer_migration in | 2.6.30-git9 accepts any numerical value as input. | | Steps to reproduce: | 1. echo -6666666 > /proc/sys/kernel/timer_migration | 2. cat /proc/sys/kernel/timer_migration | -6666666 | | 1. echo 44444444444444444444444444444444444444444444444444444444444 > /proc/sys/kernel/timer_migration | 2. cat /proc/sys/kernel/timer_migration | -1357789412 | | Expected behavior: Should 'echo: write error: Invalid argument' while | setting any value other then 0 & 1 Restrict valid values to 0 and 1. Reported-by: Poornima Nayak Tested-by: Poornima Nayak Signed-off-by: Arun R Bharadwaj Cc: poornima nayak Cc: Arun Bharadwaj LKML-Reference: <20090623043058.GA3249@linux.vnet.ibm.com> Signed-off-by: Ingo Molnar --- kernel/sysctl.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 62e4ff9968b..c428ba161db 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -335,7 +335,10 @@ static struct ctl_table kern_table[] = { .data = &sysctl_timer_migration, .maxlen = sizeof(unsigned int), .mode = 0644, - .proc_handler = &proc_dointvec, + .proc_handler = &proc_dointvec_minmax, + .strategy = &sysctl_intvec, + .extra1 = &zero, + .extra2 = &one, }, #endif { -- cgit v1.2.3 From 3d906ef10a539ff336010afab8f6f9c4fe379695 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Tue, 23 Jun 2009 11:23:07 +0200 Subject: perf_counter tools: Handle overlapping MMAP events Martin Schwidefsky reported "perf report" symbol resolution problems on S390. Since we only report MMAP, not MUNMAP, we have to deal with overlapping maps. We used to simply throw out the old map on the assumption whole maps got unmapped. This obviously doesn't deal with partial unmaps. However it appears some dynamic linkers do fancy partial unmaps (s390), so do something more elaborate and truncate the old maps, only removing them when they've been fully covered. This resolves (part of) the S390 symbol resolution problems. Reported-by: Martin Schwidefsky Tested-by: Martin Schwidefsky Signed-off-by: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo LKML-Reference: Signed-off-by: Ingo Molnar --- tools/perf/builtin-report.c | 24 +++++++++++++++++++++--- 1 file changed, 21 insertions(+), 3 deletions(-) diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index ec230a0146e..b4e76f75ba8 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -400,9 +400,27 @@ static void thread__insert_map(struct thread *self, struct map *map) list_for_each_entry_safe(pos, tmp, &self->maps, node) { if (map__overlap(pos, map)) { - list_del_init(&pos->node); - /* XXX leaks dsos */ - free(pos); + if (verbose >= 2) { + printf("overlapping maps:\n"); + map__fprintf(map, stdout); + map__fprintf(pos, stdout); + } + + if (map->start <= pos->start && map->end > pos->start) + pos->start = map->end; + + if (map->end >= pos->end && map->start < pos->end) + pos->end = map->start; + + if (verbose >= 2) { + printf("after collision:\n"); + map__fprintf(pos, stdout); + } + + if (pos->start >= pos->end) { + list_del_init(&pos->node); + free(pos); + } } } -- cgit v1.2.3 From f29ac756a40d0f1bb07d682ea521e7b666ff06d5 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Fri, 19 Jun 2009 18:27:26 +0200 Subject: perf_counter: Optimize perf_swcounter_event() Similar to tracepoints, use an enable variable to reduce overhead when unused. Only look for a counter of a particular event type when we know there is at least one in the system. Signed-off-by: Peter Zijlstra LKML-Reference: Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Signed-off-by: Ingo Molnar --- include/linux/perf_counter.h | 11 ++++++++++- kernel/perf_counter.c | 18 +++++++++++++++--- 2 files changed, 25 insertions(+), 4 deletions(-) diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h index 89698d8aba5..e7213e46cf9 100644 --- a/include/linux/perf_counter.h +++ b/include/linux/perf_counter.h @@ -669,7 +669,16 @@ static inline int is_software_counter(struct perf_counter *counter) (counter->attr.type != PERF_TYPE_HW_CACHE); } -extern void perf_swcounter_event(u32, u64, int, struct pt_regs *, u64); +extern atomic_t perf_swcounter_enabled[PERF_COUNT_SW_MAX]; + +extern void __perf_swcounter_event(u32, u64, int, struct pt_regs *, u64); + +static inline void +perf_swcounter_event(u32 event, u64 nr, int nmi, struct pt_regs *regs, u64 addr) +{ + if (atomic_read(&perf_swcounter_enabled[event])) + __perf_swcounter_event(event, nr, nmi, regs, addr); +} extern void __perf_counter_mmap(struct vm_area_struct *vma); diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 1a933a221ea..7515c769542 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -3317,8 +3317,8 @@ out: put_cpu_var(perf_cpu_context); } -void -perf_swcounter_event(u32 event, u64 nr, int nmi, struct pt_regs *regs, u64 addr) +void __perf_swcounter_event(u32 event, u64 nr, int nmi, + struct pt_regs *regs, u64 addr) { struct perf_sample_data data = { .regs = regs, @@ -3509,9 +3509,19 @@ static const struct pmu *tp_perf_counter_init(struct perf_counter *counter) } #endif +atomic_t perf_swcounter_enabled[PERF_COUNT_SW_MAX]; + +static void sw_perf_counter_destroy(struct perf_counter *counter) +{ + u64 event = counter->attr.config; + + atomic_dec(&perf_swcounter_enabled[event]); +} + static const struct pmu *sw_perf_counter_init(struct perf_counter *counter) { const struct pmu *pmu = NULL; + u64 event = counter->attr.config; /* * Software counters (currently) can't in general distinguish @@ -3520,7 +3530,7 @@ static const struct pmu *sw_perf_counter_init(struct perf_counter *counter) * to be kernel events, and page faults are never hypervisor * events. */ - switch (counter->attr.config) { + switch (event) { case PERF_COUNT_SW_CPU_CLOCK: pmu = &perf_ops_cpu_clock; @@ -3541,6 +3551,8 @@ static const struct pmu *sw_perf_counter_init(struct perf_counter *counter) case PERF_COUNT_SW_PAGE_FAULTS_MAJ: case PERF_COUNT_SW_CONTEXT_SWITCHES: case PERF_COUNT_SW_CPU_MIGRATIONS: + atomic_inc(&perf_swcounter_enabled[event]); + counter->destroy = sw_perf_counter_destroy; pmu = &perf_ops_generic; break; } -- cgit v1.2.3 From b84fbc9fb1d943e2c5f4efe52ed0e3c93a4bdb6a Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Mon, 22 Jun 2009 13:57:40 +0200 Subject: perf_counter: Push inherit into perf_counter_alloc() Teach perf_counter_alloc() about inheritance so that we can optimize the inherit path in the next patch. Remove the child_counter->atrr.inherit = 1 line because the only way to get there is if parent_counter->attr.inherit == 1 and we copy the attrs. Signed-off-by: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo LKML-Reference: Signed-off-by: Ingo Molnar --- kernel/perf_counter.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 7515c769542..0a45490f402 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -3568,6 +3568,7 @@ perf_counter_alloc(struct perf_counter_attr *attr, int cpu, struct perf_counter_context *ctx, struct perf_counter *group_leader, + struct perf_counter *parent_counter, gfp_t gfpflags) { const struct pmu *pmu; @@ -3603,6 +3604,8 @@ perf_counter_alloc(struct perf_counter_attr *attr, counter->ctx = ctx; counter->oncpu = -1; + counter->parent = parent_counter; + counter->ns = get_pid_ns(current->nsproxy->pid_ns); counter->id = atomic64_inc_return(&perf_counter_id); @@ -3827,7 +3830,7 @@ SYSCALL_DEFINE5(perf_counter_open, } counter = perf_counter_alloc(&attr, cpu, ctx, group_leader, - GFP_KERNEL); + NULL, GFP_KERNEL); ret = PTR_ERR(counter); if (IS_ERR(counter)) goto err_put_context; @@ -3893,7 +3896,8 @@ inherit_counter(struct perf_counter *parent_counter, child_counter = perf_counter_alloc(&parent_counter->attr, parent_counter->cpu, child_ctx, - group_leader, GFP_KERNEL); + group_leader, parent_counter, + GFP_KERNEL); if (IS_ERR(child_counter)) return child_counter; get_ctx(child_ctx); @@ -3916,12 +3920,6 @@ inherit_counter(struct perf_counter *parent_counter, */ add_counter_to_ctx(child_counter, child_ctx); - child_counter->parent = parent_counter; - /* - * inherit into child's child as well: - */ - child_counter->attr.inherit = 1; - /* * Get a reference to the parent filp - we will fput it * when the child counter exits. This is safe to do because -- cgit v1.2.3 From f344011ccb85469445369153c3d27c4ee4bc2ac8 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Mon, 22 Jun 2009 13:58:35 +0200 Subject: perf_counter: Optimize perf_counter_alloc()'s inherit case We don't need to add usage counts for swcounter and attr usage models for inherited counters since the parent counter will always have one, which suffices to generate the needed output. This avoids up to 3 global atomic increments per inherited counter. LKML-Reference: Signed-off-by: Peter Zijlstra Signed-off-by: Ingo Molnar --- kernel/perf_counter.c | 32 ++++++++++++++++++++------------ 1 file changed, 20 insertions(+), 12 deletions(-) diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 0a45490f402..c2b19c11171 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -1508,11 +1508,13 @@ static void free_counter(struct perf_counter *counter) { perf_pending_sync(counter); - atomic_dec(&nr_counters); - if (counter->attr.mmap) - atomic_dec(&nr_mmap_counters); - if (counter->attr.comm) - atomic_dec(&nr_comm_counters); + if (!counter->parent) { + atomic_dec(&nr_counters); + if (counter->attr.mmap) + atomic_dec(&nr_mmap_counters); + if (counter->attr.comm) + atomic_dec(&nr_comm_counters); + } if (counter->destroy) counter->destroy(counter); @@ -3515,6 +3517,8 @@ static void sw_perf_counter_destroy(struct perf_counter *counter) { u64 event = counter->attr.config; + WARN_ON(counter->parent); + atomic_dec(&perf_swcounter_enabled[event]); } @@ -3551,8 +3555,10 @@ static const struct pmu *sw_perf_counter_init(struct perf_counter *counter) case PERF_COUNT_SW_PAGE_FAULTS_MAJ: case PERF_COUNT_SW_CONTEXT_SWITCHES: case PERF_COUNT_SW_CPU_MIGRATIONS: - atomic_inc(&perf_swcounter_enabled[event]); - counter->destroy = sw_perf_counter_destroy; + if (!counter->parent) { + atomic_inc(&perf_swcounter_enabled[event]); + counter->destroy = sw_perf_counter_destroy; + } pmu = &perf_ops_generic; break; } @@ -3663,11 +3669,13 @@ done: counter->pmu = pmu; - atomic_inc(&nr_counters); - if (counter->attr.mmap) - atomic_inc(&nr_mmap_counters); - if (counter->attr.comm) - atomic_inc(&nr_comm_counters); + if (!counter->parent) { + atomic_inc(&nr_counters); + if (counter->attr.mmap) + atomic_inc(&nr_mmap_counters); + if (counter->attr.comm) + atomic_inc(&nr_comm_counters); + } return counter; } -- cgit v1.2.3 From 0c405b3346ea08098a82a1ee82912b018dfa9f96 Mon Sep 17 00:00:00 2001 From: Jonathan McDowell Date: Tue, 23 Jun 2009 13:30:21 +0300 Subject: OMAP1: Fix compilation of arch/arm/mach-omap1/mailbox.c This fixes the positioning of " in MODULE_AUTHOR, which is currently causing a build failure on latest git with CONFIG_OMAP_MBOX_FWK=m; the original breakage appears to date from the end of last year in a5abbbe52b7e89a7633319c5417bd4331f7ac8ed Signed-Off-By: Jonathan McDowell Acked-by: Hiroshi DOYU Signed-off-by: Tony Lindgren --- arch/arm/mach-omap1/mailbox.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-omap1/mailbox.c b/arch/arm/mach-omap1/mailbox.c index 0af4d6c85b4..6810b4aeb02 100644 --- a/arch/arm/mach-omap1/mailbox.c +++ b/arch/arm/mach-omap1/mailbox.c @@ -203,5 +203,5 @@ module_exit(omap1_mbox_exit); MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("omap mailbox: omap1 architecture specific functions"); -MODULE_AUTHOR("Hiroshi DOYU" ); +MODULE_AUTHOR("Hiroshi DOYU "); MODULE_ALIAS("platform:omap1-mailbox"); -- cgit v1.2.3 From e4d24ec39c98cdc9cd97c26fdd426bbab0034fbe Mon Sep 17 00:00:00 2001 From: Andrew de Quincey Date: Tue, 23 Jun 2009 13:30:21 +0300 Subject: OMAP1: Fix N770 MMC support Some of the N770's MMC configuration options seem to have been dropped. This patch adds them back in again. Note that only the .ocr_mask change was /critical/, but I've added the .max_freq setting back as well, as the original sources had it. Can anyone confirm if this is unnecessary? Secondly, there is support in the original code for a 4wire/higher speed mode. As I don't have the requisite N770 hardware (I think it was a rev2 N770?) to test this, I can't really add it back. Signed-off-by: Andrew de Quincey Signed-off-by: Tony Lindgren --- arch/arm/mach-omap1/board-nokia770.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/mach-omap1/board-nokia770.c b/arch/arm/mach-omap1/board-nokia770.c index e70fc7c66bb..d9ebba01ffc 100644 --- a/arch/arm/mach-omap1/board-nokia770.c +++ b/arch/arm/mach-omap1/board-nokia770.c @@ -205,9 +205,11 @@ static int nokia770_mmc_get_cover_state(struct device *dev, int slot) static struct omap_mmc_platform_data nokia770_mmc2_data = { .nr_slots = 1, .dma_mask = 0xffffffff, + .max_freq = 12000000, .slots[0] = { .set_power = nokia770_mmc_set_power, .get_cover_state = nokia770_mmc_get_cover_state, + .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, .name = "mmcblk", }, }; -- cgit v1.2.3 From d376f89701b0aa5b45d25fbfbeb1a0040399ad30 Mon Sep 17 00:00:00 2001 From: Huang Weiyi Date: Tue, 23 Jun 2009 13:30:22 +0300 Subject: OMAP1: remove duplicated #include Remove duplicated #include in arch/arm/mach-omap1/board-nokia770.c. Signed-off-by: Huang Weiyi Signed-off-by: Tony Lindgren --- arch/arm/mach-omap1/board-nokia770.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm/mach-omap1/board-nokia770.c b/arch/arm/mach-omap1/board-nokia770.c index d9ebba01ffc..ed2a48a9ce7 100644 --- a/arch/arm/mach-omap1/board-nokia770.c +++ b/arch/arm/mach-omap1/board-nokia770.c @@ -36,7 +36,6 @@ #include #include #include -#include #include #define ADS7846_PENDOWN_GPIO 15 -- cgit v1.2.3 From 762ad3a476baa1831f732488e80960f4aa024393 Mon Sep 17 00:00:00 2001 From: Grazvydas Ignotas Date: Tue, 23 Jun 2009 13:30:22 +0300 Subject: OMAP2/3: mmc-twl4030: use correct controller in twl_mmc23_set_power twl_mmc23_set_power() has MMC2 twl_mmc_controller hardcoded in it, which breaks MMC3. Find the right controller to use instead. Signed-off-by: Grazvydas Ignotas Cc: David Brownell Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/mmc-twl4030.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/mmc-twl4030.c b/arch/arm/mach-omap2/mmc-twl4030.c index 9756a878fd9..1541fd4c8d0 100644 --- a/arch/arm/mach-omap2/mmc-twl4030.c +++ b/arch/arm/mach-omap2/mmc-twl4030.c @@ -263,8 +263,19 @@ static int twl_mmc1_set_power(struct device *dev, int slot, int power_on, static int twl_mmc23_set_power(struct device *dev, int slot, int power_on, int vdd) { int ret = 0; - struct twl_mmc_controller *c = &hsmmc[1]; + struct twl_mmc_controller *c = NULL; struct omap_mmc_platform_data *mmc = dev->platform_data; + int i; + + for (i = 1; i < ARRAY_SIZE(hsmmc); i++) { + if (mmc == hsmmc[i].mmc) { + c = &hsmmc[i]; + break; + } + } + + if (c == NULL) + return -ENODEV; /* If we don't see a Vcc regulator, assume it's a fixed * voltage always-on regulator. -- cgit v1.2.3 From 091a58af0ba1765d80b1e74382c7572baceb1bdc Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Tue, 23 Jun 2009 13:30:22 +0300 Subject: OMAP2/3: omap mailbox: platform_get_irq() error ignored platform_get_irq may return -ENXIO. but struct omap_mbox mbox_dsp_info.irq is unsigned, so the error was not noticed. Signed-off-by: Roel Kluin Signed-off-by: Hiroshi DOYU Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/mailbox.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-omap2/mailbox.c b/arch/arm/mach-omap2/mailbox.c index fd5b8a5925c..6f71f3730c9 100644 --- a/arch/arm/mach-omap2/mailbox.c +++ b/arch/arm/mach-omap2/mailbox.c @@ -282,12 +282,12 @@ static int __devinit omap2_mbox_probe(struct platform_device *pdev) return -ENOMEM; /* DSP or IVA2 IRQ */ - mbox_dsp_info.irq = platform_get_irq(pdev, 0); - if (mbox_dsp_info.irq < 0) { + ret = platform_get_irq(pdev, 0); + if (ret < 0) { dev_err(&pdev->dev, "invalid irq resource\n"); - ret = -ENODEV; goto err_dsp; } + mbox_dsp_info.irq = ret; ret = omap_mbox_register(&pdev->dev, &mbox_dsp_info); if (ret) -- cgit v1.2.3 From 8e25ad964aac0bf6b30dd013303750089f819679 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Tue, 23 Jun 2009 13:30:23 +0300 Subject: OMAP2/3: Add omap_type() for determining GP/EMU/HS The omap_type() function is added and returns the DEVICETYPE field of the CONTROL_STATUS register. The result can be used for conditional code based on whether device is GP (general purpose), EMU or HS (high security). Also move the type defines so omap1 code compile does not require ifdefs for sections using these defines. This code is needed for the following fix to set the SRAM size correctly for HS omaps. Also at least PM and watchdog code will need this function. Signed-off-by: Kevin Hilman Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/id.c | 22 ++++++++++++++++++++++ arch/arm/plat-omap/include/mach/cpu.h | 22 +++++++++++----------- 2 files changed, 33 insertions(+), 11 deletions(-) diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c index 458990e20c6..a98201cc265 100644 --- a/arch/arm/mach-omap2/id.c +++ b/arch/arm/mach-omap2/id.c @@ -48,6 +48,28 @@ int omap_chip_is(struct omap_chip_id oci) } EXPORT_SYMBOL(omap_chip_is); +int omap_type(void) +{ + u32 val = 0; + + if (cpu_is_omap24xx()) + val = omap_ctrl_readl(OMAP24XX_CONTROL_STATUS); + else if (cpu_is_omap34xx()) + val = omap_ctrl_readl(OMAP343X_CONTROL_STATUS); + else { + pr_err("Cannot detect omap type!\n"); + goto out; + } + + val &= OMAP2_DEVICETYPE_MASK; + val >>= 8; + +out: + return val; +} +EXPORT_SYMBOL(omap_type); + + /*----------------------------------------------------------------------------*/ #define OMAP_TAP_IDCODE 0x0204 diff --git a/arch/arm/plat-omap/include/mach/cpu.h b/arch/arm/plat-omap/include/mach/cpu.h index fc60c4ebcc2..285eaa3a827 100644 --- a/arch/arm/plat-omap/include/mach/cpu.h +++ b/arch/arm/plat-omap/include/mach/cpu.h @@ -30,6 +30,17 @@ #ifndef __ASM_ARCH_OMAP_CPU_H #define __ASM_ARCH_OMAP_CPU_H +/* + * Omap device type i.e. EMU/HS/TST/GP/BAD + */ +#define OMAP2_DEVICE_TYPE_TEST 0 +#define OMAP2_DEVICE_TYPE_EMU 1 +#define OMAP2_DEVICE_TYPE_SEC 2 +#define OMAP2_DEVICE_TYPE_GP 3 +#define OMAP2_DEVICE_TYPE_BAD 4 + +int omap_type(void); + struct omap_chip_id { u8 oc; u8 type; @@ -424,17 +435,6 @@ IS_OMAP_TYPE(3430, 0x3430) int omap_chip_is(struct omap_chip_id oci); -int omap_type(void); - -/* - * Macro to detect device type i.e. EMU/HS/TST/GP/BAD - */ -#define OMAP2_DEVICE_TYPE_TEST 0 -#define OMAP2_DEVICE_TYPE_EMU 1 -#define OMAP2_DEVICE_TYPE_SEC 2 -#define OMAP2_DEVICE_TYPE_GP 3 -#define OMAP2_DEVICE_TYPE_BAD 4 - void omap2_check_revision(void); #endif /* defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) */ -- cgit v1.2.3 From 5b0acc59d1bc5c310dfd6976555664f9dcf4dacd Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Tue, 23 Jun 2009 13:30:23 +0300 Subject: OMAP3: SRAM size fix for HS/EMU devices SRAM size fix for HS/EMU devices Signed-off-by: Tero Kristo Signed-off-by: Kevin Hilman Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/sram.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c index 65006df3f1b..4ea73804d21 100644 --- a/arch/arm/plat-omap/sram.c +++ b/arch/arm/plat-omap/sram.c @@ -133,7 +133,12 @@ void __init omap_detect_sram(void) if (cpu_is_omap34xx()) { omap_sram_base = OMAP3_SRAM_PUB_VA; omap_sram_start = OMAP3_SRAM_PUB_PA; - omap_sram_size = 0x8000; /* 32K */ + if ((omap_type() == OMAP2_DEVICE_TYPE_EMU) || + (omap_type() == OMAP2_DEVICE_TYPE_SEC)) { + omap_sram_size = 0x7000; /* 28K */ + } else { + omap_sram_size = 0x8000; /* 32K */ + } } else { omap_sram_base = OMAP2_SRAM_PUB_VA; omap_sram_start = OMAP2_SRAM_PUB_PA; -- cgit v1.2.3 From aecedb94b366d6fb5e2a17ca18a5dc78e593198e Mon Sep 17 00:00:00 2001 From: Kalle Jokiniemi Date: Tue, 23 Jun 2009 13:30:24 +0300 Subject: OMAP3: DMA: Enable idlemodes for DMA OCP This patch enables MStandby smart-idle mode, autoidle smartidle mode, and the autoidle bit for DMA4_OCP_SYSCONFIG. Signed-off-by: Kalle Jokiniemi Signed-off-by: Tony Lindgren Signed-off-by: Kevin Hilman --- arch/arm/plat-omap/dma.c | 13 +++++++++++++ arch/arm/plat-omap/include/mach/dma.h | 15 +++++++++++++++ 2 files changed, 28 insertions(+) diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index def14ec265b..7677a4a1cef 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -2457,6 +2457,19 @@ static int __init omap_init_dma(void) setup_irq(irq, &omap24xx_dma_irq); } + /* Enable smartidle idlemodes and autoidle */ + if (cpu_is_omap34xx()) { + u32 v = dma_read(OCP_SYSCONFIG); + v &= ~(DMA_SYSCONFIG_MIDLEMODE_MASK | + DMA_SYSCONFIG_SIDLEMODE_MASK | + DMA_SYSCONFIG_AUTOIDLE); + v |= (DMA_SYSCONFIG_MIDLEMODE(DMA_IDLEMODE_SMARTIDLE) | + DMA_SYSCONFIG_SIDLEMODE(DMA_IDLEMODE_SMARTIDLE) | + DMA_SYSCONFIG_AUTOIDLE); + dma_write(v , OCP_SYSCONFIG); + } + + /* FIXME: Update LCD DMA to work on 24xx */ if (cpu_class_is_omap1()) { r = request_irq(INT_DMA_LCD, lcd_dma_irq_handler, 0, diff --git a/arch/arm/plat-omap/include/mach/dma.h b/arch/arm/plat-omap/include/mach/dma.h index 8c1eae88737..7b939cc0196 100644 --- a/arch/arm/plat-omap/include/mach/dma.h +++ b/arch/arm/plat-omap/include/mach/dma.h @@ -389,6 +389,21 @@ #define DMA_THREAD_FIFO_25 (0x02 << 14) #define DMA_THREAD_FIFO_50 (0x03 << 14) +/* DMA4_OCP_SYSCONFIG bits */ +#define DMA_SYSCONFIG_MIDLEMODE_MASK (3 << 12) +#define DMA_SYSCONFIG_CLOCKACTIVITY_MASK (3 << 8) +#define DMA_SYSCONFIG_EMUFREE (1 << 5) +#define DMA_SYSCONFIG_SIDLEMODE_MASK (3 << 3) +#define DMA_SYSCONFIG_SOFTRESET (1 << 2) +#define DMA_SYSCONFIG_AUTOIDLE (1 << 0) + +#define DMA_SYSCONFIG_MIDLEMODE(n) ((n) << 12) +#define DMA_SYSCONFIG_SIDLEMODE(n) ((n) << 3) + +#define DMA_IDLEMODE_SMARTIDLE 0x2 +#define DMA_IDLEMODE_NO_IDLE 0x1 +#define DMA_IDLEMODE_FORCE_IDLE 0x0 + /* Chaining modes*/ #ifndef CONFIG_ARCH_OMAP1 #define OMAP_DMA_STATIC_CHAIN 0x1 -- cgit v1.2.3 From 6d453e84b587f38e4197bb2c6a37296c4a80cbac Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Tue, 23 Jun 2009 13:30:24 +0300 Subject: OMAP2/3: gpmc-onenand: correct use of async timings Use async timings when sync timings are not requested. Also ensure that OneNAND is in async mode when async timings are used. Signed-off-by: Adrian Hunter Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/gpmc-onenand.c | 21 +++++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-omap2/gpmc-onenand.c b/arch/arm/mach-omap2/gpmc-onenand.c index 2fd22f9c5f0..54fec53a48e 100644 --- a/arch/arm/mach-omap2/gpmc-onenand.c +++ b/arch/arm/mach-omap2/gpmc-onenand.c @@ -31,6 +31,8 @@ static struct platform_device gpmc_onenand_device = { static int omap2_onenand_set_async_mode(int cs, void __iomem *onenand_base) { struct gpmc_timings t; + u32 reg; + int err; const int t_cer = 15; const int t_avdp = 12; @@ -43,6 +45,11 @@ static int omap2_onenand_set_async_mode(int cs, void __iomem *onenand_base) const int t_wpl = 40; const int t_wph = 30; + /* Ensure sync read and sync write are disabled */ + reg = readw(onenand_base + ONENAND_REG_SYS_CFG1); + reg &= ~ONENAND_SYS_CFG1_SYNC_READ & ~ONENAND_SYS_CFG1_SYNC_WRITE; + writew(reg, onenand_base + ONENAND_REG_SYS_CFG1); + memset(&t, 0, sizeof(t)); t.sync_clk = 0; t.cs_on = 0; @@ -74,7 +81,16 @@ static int omap2_onenand_set_async_mode(int cs, void __iomem *onenand_base) GPMC_CONFIG1_DEVICESIZE_16 | GPMC_CONFIG1_MUXADDDATA); - return gpmc_cs_set_timings(cs, &t); + err = gpmc_cs_set_timings(cs, &t); + if (err) + return err; + + /* Ensure sync read and sync write are disabled */ + reg = readw(onenand_base + ONENAND_REG_SYS_CFG1); + reg &= ~ONENAND_SYS_CFG1_SYNC_READ & ~ONENAND_SYS_CFG1_SYNC_WRITE; + writew(reg, onenand_base + ONENAND_REG_SYS_CFG1); + + return 0; } static void set_onenand_cfg(void __iomem *onenand_base, int latency, @@ -124,7 +140,8 @@ static int omap2_onenand_set_sync_mode(struct omap_onenand_platform_data *cfg, } else if (cfg->flags & ONENAND_SYNC_READWRITE) { sync_read = 1; sync_write = 1; - } + } else + return omap2_onenand_set_async_mode(cs, onenand_base); if (!freq) { /* Very first call freq is not known */ -- cgit v1.2.3 From c8e6488f7b56d82453fc7d526118e9f1c2df133a Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Tue, 23 Jun 2009 13:30:25 +0300 Subject: OMAP3: RX51: Use OneNAND sync read / write Use OneNAND sync read / write Signed-off-by: Adrian Hunter Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/board-rx51-peripherals.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c index da93b86234e..9a0bf6744a0 100644 --- a/arch/arm/mach-omap2/board-rx51-peripherals.c +++ b/arch/arm/mach-omap2/board-rx51-peripherals.c @@ -362,6 +362,7 @@ static struct omap_onenand_platform_data board_onenand_data = { .gpio_irq = 65, .parts = onenand_partitions, .nr_parts = ARRAY_SIZE(onenand_partitions), + .flags = ONENAND_SYNC_READWRITE, }; static void __init board_onenand_init(void) -- cgit v1.2.3 From f48ef99ca14577f3ea0a48c0e05ed7f5f6d211e9 Mon Sep 17 00:00:00 2001 From: Fernando Guzman Lugo Date: Tue, 23 Jun 2009 13:30:25 +0300 Subject: OMAP: IOMMU: function flush_iotlb_page is not flushing correct entry The function flush_iotlb_page is not loading the CAM register with the correct entry to be flushed, so it is flushing other entry Signed-off-by: Fernando Guzman Lugo Signed-off-by: Hiroshi DOYU Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/plat-omap/iommu.c b/arch/arm/plat-omap/iommu.c index 4cf449fa2cb..4a030139901 100644 --- a/arch/arm/plat-omap/iommu.c +++ b/arch/arm/plat-omap/iommu.c @@ -298,7 +298,7 @@ void flush_iotlb_page(struct iommu *obj, u32 da) if ((start <= da) && (da < start + bytes)) { dev_dbg(obj->dev, "%s: %08x<=%08x(%x)\n", __func__, start, da, bytes); - + iotlb_load_cr(obj, &cr); iommu_write_reg(obj, 1, MMU_FLUSH_ENTRY); } } -- cgit v1.2.3 From cb5793db5ecf108594d8006ae838e47996a76a19 Mon Sep 17 00:00:00 2001 From: janboe Date: Tue, 23 Jun 2009 13:30:25 +0300 Subject: OMAP2/3: Initialize gpio debounce register Some bootloader may initialize debounce register and this will make dbclk not consist with the debounce register after linux kernel boot up. Signed-off-by: janboe Signed-off-by: Kevin Hilman Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/gpio.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c index 7fd89ba8d3b..26b387c1242 100644 --- a/arch/arm/plat-omap/gpio.c +++ b/arch/arm/plat-omap/gpio.c @@ -1585,6 +1585,7 @@ static int __init _omap_gpio_init(void) __raw_writel(0x00000000, bank->base + OMAP24XX_GPIO_IRQENABLE1); __raw_writel(0xffffffff, bank->base + OMAP24XX_GPIO_IRQSTATUS1); __raw_writew(0x0015, bank->base + OMAP24XX_GPIO_SYSCONFIG); + __raw_writel(0x00000000, bank->base + OMAP24XX_GPIO_DEBOUNCE_EN); /* Initialize interface clock ungated, module enabled */ __raw_writel(0, bank->base + OMAP24XX_GPIO_CTRL); -- cgit v1.2.3 From 291e99a112f9bf34c027031de7ef8b94a2692937 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Mon, 4 May 2009 09:30:51 +0100 Subject: [ARM] S3C24XX: Fix use of CONFIG_S3C24XX_PWM CONFIG_S3C24XX_PWM was defined in arch/arm/plat-s3c24xx/Kconfig but not used anywhere else as the corresponding makefile used CONFIG_HAVE_PWM (selected by CONFIG_S3C24XX_PWM) to compile the PWM driver. Change the makefile to use CONFIG_S3C24XX_PWM to compile this driver to ensure it is only build when needed. Signed-off-by: Ben Dooks --- arch/arm/plat-s3c24xx/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/plat-s3c24xx/Makefile b/arch/arm/plat-s3c24xx/Makefile index 636cb12711d..579a165c282 100644 --- a/arch/arm/plat-s3c24xx/Makefile +++ b/arch/arm/plat-s3c24xx/Makefile @@ -29,7 +29,7 @@ obj-$(CONFIG_PM_SIMTEC) += pm-simtec.o obj-$(CONFIG_PM) += pm.o obj-$(CONFIG_PM) += irq-pm.o obj-$(CONFIG_PM) += sleep.o -obj-$(CONFIG_HAVE_PWM) += pwm.o +obj-$(CONFIG_S3C24XX_PWM) += pwm.o obj-$(CONFIG_S3C2410_CLOCK) += s3c2410-clock.o obj-$(CONFIG_S3C2410_DMA) += dma.o obj-$(CONFIG_S3C24XX_ADC) += adc.o -- cgit v1.2.3 From a18327f35a879a6467c3e901da7f68944b191732 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Mon, 4 May 2009 09:53:12 +0100 Subject: [ARM] S3C: Remove unused CONFIG_DEBUG_S3C_PORT Remove the unused CONFIG_DEBUG_S3C_PORT as we currently only have support for using the S3C UARTs via the low-level debug code. Signed-off-by: Ben Dooks --- arch/arm/Kconfig.debug | 8 -------- arch/arm/configs/s3c2410_defconfig | 1 - arch/arm/configs/s3c6400_defconfig | 1 - arch/arm/configs/tct_hammer_defconfig | 1 - 4 files changed, 11 deletions(-) diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index a71fd941ade..a89e4734b8f 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -99,14 +99,6 @@ config DEBUG_CLPS711X_UART2 output to the second serial port on these devices. Saying N will cause the debug messages to appear on the first serial port. -config DEBUG_S3C_PORT - depends on DEBUG_LL && PLAT_S3C - bool "Kernel low-level debugging messages via S3C UART" - help - Say Y here if you want debug print routines to go to one of the - S3C internal UARTs. The chosen UART must have been configured - before it is used. - config DEBUG_S3C_UART depends on PLAT_S3C int "S3C UART to use for low-level debug" diff --git a/arch/arm/configs/s3c2410_defconfig b/arch/arm/configs/s3c2410_defconfig index 2d58b8fe59b..f4f1899f3c8 100644 --- a/arch/arm/configs/s3c2410_defconfig +++ b/arch/arm/configs/s3c2410_defconfig @@ -2298,7 +2298,6 @@ CONFIG_DEBUG_ERRORS=y # CONFIG_DEBUG_STACK_USAGE is not set CONFIG_DEBUG_LL=y # CONFIG_DEBUG_ICEDCC is not set -CONFIG_DEBUG_S3C_PORT=y CONFIG_DEBUG_S3C_UART=0 # diff --git a/arch/arm/configs/s3c6400_defconfig b/arch/arm/configs/s3c6400_defconfig index 2e8fa50e9a0..32860609e05 100644 --- a/arch/arm/configs/s3c6400_defconfig +++ b/arch/arm/configs/s3c6400_defconfig @@ -816,7 +816,6 @@ CONFIG_DEBUG_ERRORS=y # CONFIG_DEBUG_STACK_USAGE is not set CONFIG_DEBUG_LL=y # CONFIG_DEBUG_ICEDCC is not set -CONFIG_DEBUG_S3C_PORT=y CONFIG_DEBUG_S3C_UART=0 # diff --git a/arch/arm/configs/tct_hammer_defconfig b/arch/arm/configs/tct_hammer_defconfig index 07dfb98df4f..9d32faef05f 100644 --- a/arch/arm/configs/tct_hammer_defconfig +++ b/arch/arm/configs/tct_hammer_defconfig @@ -857,7 +857,6 @@ CONFIG_DEBUG_ERRORS=y # CONFIG_DEBUG_STACK_USAGE is not set CONFIG_DEBUG_LL=y # CONFIG_DEBUG_ICEDCC is not set -# CONFIG_DEBUG_S3C_PORT is not set CONFIG_DEBUG_S3C_UART=0 # -- cgit v1.2.3 From bc33dc5ae7ed7a422ab1141d3bf81c6cee2a5050 Mon Sep 17 00:00:00 2001 From: Huang Weiyi Date: Tue, 16 Jun 2009 16:56:09 +0800 Subject: mx31: remove duplicated #include Remove duplicated #include in arch/arm/mach-mx3/devices.c. Signed-off-by: Huang Weiyi Signed-off-by: Sascha Hauer --- arch/arm/mach-mx3/devices.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm/mach-mx3/devices.c b/arch/arm/mach-mx3/devices.c index d927eddcad4..9e87e08fb12 100644 --- a/arch/arm/mach-mx3/devices.c +++ b/arch/arm/mach-mx3/devices.c @@ -22,7 +22,6 @@ #include #include #include -#include #include #include #include -- cgit v1.2.3 From c3a9c7f53a0eb1ec687ecf131f9cfb41bbdc26b5 Mon Sep 17 00:00:00 2001 From: Alberto Panizzo Date: Wed, 17 Jun 2009 15:05:21 +0200 Subject: ARM MXC: Armadillo 500 add NOR flash device support (resend). This patch add support for NOR flash mapping through the physmap driver. The purpose is to maintain the original Atmark partition model. Signed-off-by: Alberto Panizzo Signed-off-by: Sascha Hauer --- arch/arm/mach-mx3/armadillo5x0.c | 47 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) diff --git a/arch/arm/mach-mx3/armadillo5x0.c b/arch/arm/mach-mx3/armadillo5x0.c index 541181090b3..38d99e6c9d0 100644 --- a/arch/arm/mach-mx3/armadillo5x0.c +++ b/arch/arm/mach-mx3/armadillo5x0.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #include @@ -96,6 +97,48 @@ static int armadillo5x0_pins[] = { }; +/* + * MTD NOR Flash + */ +static struct mtd_partition armadillo5x0_nor_flash_partitions[] = { + { + .name = "nor.bootloader", + .offset = 0x00000000, + .size = 4*32*1024, + }, { + .name = "nor.kernel", + .offset = MTDPART_OFS_APPEND, + .size = 16*128*1024, + }, { + .name = "nor.userland", + .offset = MTDPART_OFS_APPEND, + .size = 110*128*1024, + }, { + .name = "nor.config", + .offset = MTDPART_OFS_APPEND, + .size = 1*128*1024, + }, +}; + +static struct physmap_flash_data armadillo5x0_nor_flash_pdata = { + .width = 2, + .parts = armadillo5x0_nor_flash_partitions, + .nr_parts = ARRAY_SIZE(armadillo5x0_nor_flash_partitions), +}; + +static struct resource armadillo5x0_nor_flash_resource = { + .flags = IORESOURCE_MEM, + .start = CS0_BASE_ADDR, + .end = CS0_BASE_ADDR + SZ_64M - 1, +}; + +static struct platform_device armadillo5x0_nor_flash = { + .name = "physmap-flash", + .id = -1, + .num_resources = 1, + .resource = &armadillo5x0_nor_flash_resource, +}; + /* * FB support */ @@ -272,6 +315,10 @@ static void __init armadillo5x0_init(void) /* Register FB */ mxc_register_device(&mx3_ipu, &mx3_ipu_data); mxc_register_device(&mx3_fb, &mx3fb_pdata); + + /* Register NOR Flash */ + mxc_register_device(&armadillo5x0_nor_flash, + &armadillo5x0_nor_flash_pdata); } static void __init armadillo5x0_timer_init(void) -- cgit v1.2.3 From 0c8bad6a26aefbcb7b3d8d1e5d97c53076ac99af Mon Sep 17 00:00:00 2001 From: Alberto Panizzo Date: Wed, 17 Jun 2009 15:06:30 +0200 Subject: Armadillo 500 add NAND flash device support (resend). Since recent mxc_nand driver fixes from linux-mtd this patch add support for ST NAND02GW3B2CN6 (2k pages flash) placed on the armadillo 500 motherboard. Signed-off-by: Alberto Panizzo Signed-off-by: Sascha Hauer --- arch/arm/mach-mx3/armadillo5x0.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/arm/mach-mx3/armadillo5x0.c b/arch/arm/mach-mx3/armadillo5x0.c index 38d99e6c9d0..ee331fd6b1b 100644 --- a/arch/arm/mach-mx3/armadillo5x0.c +++ b/arch/arm/mach-mx3/armadillo5x0.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include @@ -47,8 +48,10 @@ #include #include #include +#include #include "devices.h" +#include "crm_regs.h" static int armadillo5x0_pins[] = { /* UART1 */ @@ -94,7 +97,14 @@ static int armadillo5x0_pins[] = { MX31_PIN_FPSHIFT__FPSHIFT, MX31_PIN_DRDY0__DRDY0, IOMUX_MODE(MX31_PIN_LCS1, IOMUX_CONFIG_GPIO), /*ADV7125_PSAVE*/ +}; +/* + * NAND Flash + */ +static struct mxc_nand_platform_data armadillo5x0_nand_flash_pdata = { + .width = 1, + .hw_ecc = 1, }; /* @@ -319,6 +329,12 @@ static void __init armadillo5x0_init(void) /* Register NOR Flash */ mxc_register_device(&armadillo5x0_nor_flash, &armadillo5x0_nor_flash_pdata); + + /* Register NAND Flash */ + mxc_register_device(&mxc_nand_device, &armadillo5x0_nand_flash_pdata); + + /* set NAND page size to 2k if not configured via boot mode pins */ + __raw_writel(__raw_readl(MXC_CCM_RCSR) | (1 << 30), MXC_CCM_RCSR); } static void __init armadillo5x0_timer_init(void) -- cgit v1.2.3 From 32c1ad9ab2ae4171d8f3dd0c70a611f799ad6775 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Thu, 18 Jun 2009 12:40:48 +0200 Subject: pcm037: add MT9T031 camera support Add support for the MT9T031 CMOS camera sensor from Aptina to the PCM037 board. Also add two I2C iomux pin definitions, needed for pcm037. Also remove now unneeded #ifdef CONFIG_I2C_IMX. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Sascha Hauer --- arch/arm/mach-mx3/pcm037.c | 118 ++++++++++++++++++++++++++--- arch/arm/plat-mxc/include/mach/iomux-mx3.h | 2 + 2 files changed, 108 insertions(+), 12 deletions(-) diff --git a/arch/arm/mach-mx3/pcm037.c b/arch/arm/mach-mx3/pcm037.c index c6f61a1f06c..d7b29b724a6 100644 --- a/arch/arm/mach-mx3/pcm037.c +++ b/arch/arm/mach-mx3/pcm037.c @@ -18,7 +18,7 @@ #include #include - +#include #include #include #include @@ -33,22 +33,23 @@ #include #include -#include +#include + #include #include #include #include +#include #include +#include +#include #include #include #include -#include +#include +#include #include #include -#include -#ifdef CONFIG_I2C_IMX -#include -#endif #include "devices.h" @@ -56,6 +57,8 @@ static unsigned int pcm037_pins[] = { /* I2C */ MX31_PIN_CSPI2_MOSI__SCL, MX31_PIN_CSPI2_MISO__SDA, + MX31_PIN_CSPI2_SS2__I2C3_SDA, + MX31_PIN_CSPI2_SCLK__I2C3_SCL, /* SDHC1 */ MX31_PIN_SD1_DATA3__SD1_DATA3, MX31_PIN_SD1_DATA2__SD1_DATA2, @@ -120,6 +123,22 @@ static unsigned int pcm037_pins[] = { MX31_PIN_D3_SPL__D3_SPL, MX31_PIN_D3_CLS__D3_CLS, MX31_PIN_LCS0__GPI03_23, + /* CSI */ + IOMUX_MODE(MX31_PIN_CSI_D5, IOMUX_CONFIG_GPIO), + MX31_PIN_CSI_D6__CSI_D6, + MX31_PIN_CSI_D7__CSI_D7, + MX31_PIN_CSI_D8__CSI_D8, + MX31_PIN_CSI_D9__CSI_D9, + MX31_PIN_CSI_D10__CSI_D10, + MX31_PIN_CSI_D11__CSI_D11, + MX31_PIN_CSI_D12__CSI_D12, + MX31_PIN_CSI_D13__CSI_D13, + MX31_PIN_CSI_D14__CSI_D14, + MX31_PIN_CSI_D15__CSI_D15, + MX31_PIN_CSI_HSYNC__CSI_HSYNC, + MX31_PIN_CSI_MCLK__CSI_MCLK, + MX31_PIN_CSI_PIXCLK__CSI_PIXCLK, + MX31_PIN_CSI_VSYNC__CSI_VSYNC, }; static struct physmap_flash_data pcm037_flash_data = { @@ -250,19 +269,43 @@ static struct mxc_nand_platform_data pcm037_nand_board_info = { .hw_ecc = 1, }; -#ifdef CONFIG_I2C_IMX static struct imxi2c_platform_data pcm037_i2c_1_data = { .bitrate = 100000, }; +static struct imxi2c_platform_data pcm037_i2c_2_data = { + .bitrate = 20000, +}; + static struct at24_platform_data board_eeprom = { .byte_len = 4096, .page_size = 32, .flags = AT24_FLAG_ADDR16, }; +static int pcm037_camera_power(struct device *dev, int on) +{ + /* disable or enable the camera in X7 or X8 PCM970 connector */ + gpio_set_value(IOMUX_TO_GPIO(MX31_PIN_CSI_D5), !on); + return 0; +} + +static struct i2c_board_info pcm037_i2c_2_devices[] = { + { + I2C_BOARD_INFO("mt9t031", 0x5d), + }, +}; + +static struct soc_camera_link iclink = { + .bus_id = 0, /* Must match with the camera ID */ + .power = pcm037_camera_power, + .board_info = &pcm037_i2c_2_devices[0], + .i2c_adapter_id = 2, + .module_name = "mt9t031", +}; + static struct i2c_board_info pcm037_i2c_devices[] = { - { + { I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */ .platform_data = &board_eeprom, }, { @@ -270,7 +313,14 @@ static struct i2c_board_info pcm037_i2c_devices[] = { .type = "pcf8563", } }; -#endif + +static struct platform_device pcm037_camera = { + .name = "soc-camera-pdrv", + .id = 0, + .dev = { + .platform_data = &iclink, + }, +}; /* Not connected by default */ #ifdef PCM970_SDHC_RW_SWITCH @@ -334,9 +384,41 @@ static struct imxmmc_platform_data sdhc_pdata = { .exit = pcm970_sdhc1_exit, }; +struct mx3_camera_pdata camera_pdata = { + .dma_dev = &mx3_ipu.dev, + .flags = MX3_CAMERA_DATAWIDTH_8 | MX3_CAMERA_DATAWIDTH_10, + .mclk_10khz = 2000, +}; + +static int __init pcm037_camera_alloc_dma(const size_t buf_size) +{ + dma_addr_t dma_handle; + void *buf; + int dma; + + if (buf_size < 2 * 1024 * 1024) + return -EINVAL; + + buf = dma_alloc_coherent(NULL, buf_size, &dma_handle, GFP_KERNEL); + if (!buf) { + pr_err("%s: cannot allocate camera buffer-memory\n", __func__); + return -ENOMEM; + } + + memset(buf, 0, buf_size); + + dma = dma_declare_coherent_memory(&mx3_camera.dev, + dma_handle, dma_handle, buf_size, + DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE); + + /* The way we call dma_declare_coherent_memory only a malloc can fail */ + return dma & DMA_MEMORY_MAP ? 0 : -ENOMEM; +} + static struct platform_device *devices[] __initdata = { &pcm037_flash, &pcm037_sram_device, + &pcm037_camera, }; static struct ipu_platform_data mx3_ipu_data = { @@ -415,18 +497,30 @@ static void __init mxc_board_init(void) } -#ifdef CONFIG_I2C_IMX + /* I2C adapters and devices */ i2c_register_board_info(1, pcm037_i2c_devices, ARRAY_SIZE(pcm037_i2c_devices)); mxc_register_device(&mxc_i2c_device1, &pcm037_i2c_1_data); -#endif + mxc_register_device(&mxc_i2c_device2, &pcm037_i2c_2_data); + mxc_register_device(&mxc_nand_device, &pcm037_nand_board_info); mxc_register_device(&mxcsdhc_device0, &sdhc_pdata); mxc_register_device(&mx3_ipu, &mx3_ipu_data); mxc_register_device(&mx3_fb, &mx3fb_pdata); if (!gpio_usbotg_hs_activate()) mxc_register_device(&mxc_otg_udc_device, &usb_pdata); + + /* CSI */ + /* Camera power: default - off */ + ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_CSI_D5), "mt9t031-power"); + if (!ret) + gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_CSI_D5), 1); + else + iclink.power = NULL; + + if (!pcm037_camera_alloc_dma(4 * 1024 * 1024)) + mxc_register_device(&mx3_camera, &camera_pdata); } static void __init pcm037_timer_init(void) diff --git a/arch/arm/plat-mxc/include/mach/iomux-mx3.h b/arch/arm/plat-mxc/include/mach/iomux-mx3.h index 27f8d1b2bc6..2eb182f7387 100644 --- a/arch/arm/plat-mxc/include/mach/iomux-mx3.h +++ b/arch/arm/plat-mxc/include/mach/iomux-mx3.h @@ -602,6 +602,8 @@ enum iomux_pins { #define MX31_PIN_I2C_DAT__SDA IOMUX_MODE(MX31_PIN_I2C_DAT, IOMUX_CONFIG_FUNC) #define MX31_PIN_DCD_DTE1__I2C2_SDA IOMUX_MODE(MX31_PIN_DCD_DTE1, IOMUX_CONFIG_ALT2) #define MX31_PIN_RI_DTE1__I2C2_SCL IOMUX_MODE(MX31_PIN_RI_DTE1, IOMUX_CONFIG_ALT2) +#define MX31_PIN_CSPI2_SS2__I2C3_SDA IOMUX_MODE(MX31_PIN_CSPI2_SS2, IOMUX_CONFIG_ALT1) +#define MX31_PIN_CSPI2_SCLK__I2C3_SCL IOMUX_MODE(MX31_PIN_CSPI2_SCLK, IOMUX_CONFIG_ALT1) #define MX31_PIN_CSI_D4__CSI_D4 IOMUX_MODE(MX31_PIN_CSI_D4, IOMUX_CONFIG_FUNC) #define MX31_PIN_CSI_D5__CSI_D5 IOMUX_MODE(MX31_PIN_CSI_D5, IOMUX_CONFIG_FUNC) #define MX31_PIN_CSI_D6__CSI_D6 IOMUX_MODE(MX31_PIN_CSI_D6, IOMUX_CONFIG_FUNC) -- cgit v1.2.3 From 574ec547c7771881e18e4e76ca970e323bcdc774 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Tue, 23 Jun 2009 13:26:23 +0200 Subject: ARM: add support for the EET board, based on the i.MX31 pcm037 module The "EET" variant of the pcm037 board has an OLED display, using a S6E63D6 display controller on the first SPI interface, using GPIO57 as a chip-select for it. S6E63D6 is initialised in the boot-loader, so we only have to take care of the LCD. EET also adds several buttons and LEDs on GPIOs. This patch adds a "pcm037_variant=" kernel command line parameter to specify at boot-time which board the kernel is running on, default is "pcm970", specify "eet" for the EET board. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Sascha Hauer --- arch/arm/mach-mx3/Kconfig | 8 ++ arch/arm/mach-mx3/Makefile | 1 + arch/arm/mach-mx3/pcm037.c | 65 +++++++++++-- arch/arm/mach-mx3/pcm037.h | 11 +++ arch/arm/mach-mx3/pcm037_eet.c | 204 +++++++++++++++++++++++++++++++++++++++++ 5 files changed, 283 insertions(+), 6 deletions(-) create mode 100644 arch/arm/mach-mx3/pcm037.h create mode 100644 arch/arm/mach-mx3/pcm037_eet.c diff --git a/arch/arm/mach-mx3/Kconfig b/arch/arm/mach-mx3/Kconfig index 17a21a291e2..851f2458bf6 100644 --- a/arch/arm/mach-mx3/Kconfig +++ b/arch/arm/mach-mx3/Kconfig @@ -36,6 +36,14 @@ config MACH_PCM037 Include support for Phytec pcm037 platform. This includes specific configurations for the board and its peripherals. +config MACH_PCM037_EET + bool "Support pcm037 EET board extensions" + depends on MACH_PCM037 + help + Add support for PCM037 EET baseboard extensions. If you are using the + OLED display with EET, use "video=mx3fb:CMEL-OLED" kernel + command-line parameter. + config MACH_MX31LITE bool "Support MX31 LITEKIT (LogicPD)" select ARCH_MX31 diff --git a/arch/arm/mach-mx3/Makefile b/arch/arm/mach-mx3/Makefile index 0322696bd11..6b9775471be 100644 --- a/arch/arm/mach-mx3/Makefile +++ b/arch/arm/mach-mx3/Makefile @@ -11,6 +11,7 @@ obj-$(CONFIG_MACH_MX31ADS) += mx31ads.o obj-$(CONFIG_MACH_MX31LILLY) += mx31lilly.o mx31lilly-db.o obj-$(CONFIG_MACH_MX31LITE) += mx31lite.o obj-$(CONFIG_MACH_PCM037) += pcm037.o +obj-$(CONFIG_MACH_PCM037_EET) += pcm037_eet.o obj-$(CONFIG_MACH_MX31_3DS) += mx31pdk.o obj-$(CONFIG_MACH_MX31MOBOARD) += mx31moboard.o mx31moboard-devboard.o \ mx31moboard-marxbot.o diff --git a/arch/arm/mach-mx3/pcm037.c b/arch/arm/mach-mx3/pcm037.c index d7b29b724a6..840cfda341d 100644 --- a/arch/arm/mach-mx3/pcm037.c +++ b/arch/arm/mach-mx3/pcm037.c @@ -52,6 +52,41 @@ #include #include "devices.h" +#include "pcm037.h" + +static enum pcm037_board_variant pcm037_instance = PCM037_PCM970; + +static int __init pcm037_variant_setup(char *str) +{ + if (!strcmp("eet", str)) + pcm037_instance = PCM037_EET; + else if (strcmp("pcm970", str)) + pr_warning("Unknown pcm037 baseboard variant %s\n", str); + + return 1; +} + +/* Supported values: "pcm970" (default) and "eet" */ +__setup("pcm037_variant=", pcm037_variant_setup); + +enum pcm037_board_variant pcm037_variant(void) +{ + return pcm037_instance; +} + +/* UART1 with RTS/CTS handshake signals */ +static unsigned int pcm037_uart1_handshake_pins[] = { + MX31_PIN_CTS1__CTS1, + MX31_PIN_RTS1__RTS1, + MX31_PIN_TXD1__TXD1, + MX31_PIN_RXD1__RXD1, +}; + +/* UART1 without RTS/CTS handshake signals */ +static unsigned int pcm037_uart1_pins[] = { + MX31_PIN_TXD1__TXD1, + MX31_PIN_RXD1__RXD1, +}; static unsigned int pcm037_pins[] = { /* I2C */ @@ -76,11 +111,6 @@ static unsigned int pcm037_pins[] = { MX31_PIN_CSPI1_SS0__SS0, MX31_PIN_CSPI1_SS1__SS1, MX31_PIN_CSPI1_SS2__SS2, - /* UART1 */ - MX31_PIN_CTS1__CTS1, - MX31_PIN_RTS1__RTS1, - MX31_PIN_TXD1__TXD1, - MX31_PIN_RXD1__RXD1, /* UART2 */ MX31_PIN_TXD2__TXD2, MX31_PIN_RXD2__RXD2, @@ -459,6 +489,22 @@ static const struct fb_videomode fb_modedb[] = { .sync = FB_SYNC_VERT_HIGH_ACT | FB_SYNC_OE_ACT_HIGH, .vmode = FB_VMODE_NONINTERLACED, .flag = 0, + }, { + /* 240x320 @ 60 Hz */ + .name = "CMEL-OLED", + .refresh = 60, + .xres = 240, + .yres = 320, + .pixclock = 185925, + .left_margin = 9, + .right_margin = 16, + .upper_margin = 7, + .lower_margin = 9, + .hsync_len = 1, + .vsync_len = 1, + .sync = FB_SYNC_OE_ACT_HIGH | FB_SYNC_CLK_INVERT, + .vmode = FB_VMODE_NONINTERLACED, + .flag = 0, }, }; @@ -479,6 +525,14 @@ static void __init mxc_board_init(void) mxc_iomux_setup_multiple_pins(pcm037_pins, ARRAY_SIZE(pcm037_pins), "pcm037"); + if (pcm037_variant() == PCM037_EET) + mxc_iomux_setup_multiple_pins(pcm037_uart1_pins, + ARRAY_SIZE(pcm037_uart1_pins), "pcm037_uart1"); + else + mxc_iomux_setup_multiple_pins(pcm037_uart1_handshake_pins, + ARRAY_SIZE(pcm037_uart1_handshake_pins), + "pcm037_uart1"); + platform_add_devices(devices, ARRAY_SIZE(devices)); mxc_register_device(&mxc_uart_device0, &uart_pdata); @@ -542,4 +596,3 @@ MACHINE_START(PCM037, "Phytec Phycore pcm037") .init_machine = mxc_board_init, .timer = &pcm037_timer, MACHINE_END - diff --git a/arch/arm/mach-mx3/pcm037.h b/arch/arm/mach-mx3/pcm037.h new file mode 100644 index 00000000000..d6929721a5f --- /dev/null +++ b/arch/arm/mach-mx3/pcm037.h @@ -0,0 +1,11 @@ +#ifndef __PCM037_H__ +#define __PCM037_H__ + +enum pcm037_board_variant { + PCM037_PCM970, + PCM037_EET, +}; + +extern enum pcm037_board_variant pcm037_variant(void); + +#endif diff --git a/arch/arm/mach-mx3/pcm037_eet.c b/arch/arm/mach-mx3/pcm037_eet.c new file mode 100644 index 00000000000..fe52fb1bb8b --- /dev/null +++ b/arch/arm/mach-mx3/pcm037_eet.c @@ -0,0 +1,204 @@ +/* + * Copyright (C) 2009 + * Guennadi Liakhovetski, DENX Software Engineering, + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include +#include +#include +#include +#include + +#include +#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE) +#include +#endif +#include + +#include + +#include "pcm037.h" +#include "devices.h" + +static unsigned int pcm037_eet_pins[] = { + /* SPI #1 */ + MX31_PIN_CSPI1_MISO__MISO, + MX31_PIN_CSPI1_MOSI__MOSI, + MX31_PIN_CSPI1_SCLK__SCLK, + MX31_PIN_CSPI1_SPI_RDY__SPI_RDY, + MX31_PIN_CSPI1_SS0__SS0, + MX31_PIN_CSPI1_SS1__SS1, + MX31_PIN_CSPI1_SS2__SS2, + + /* Reserve and hardwire GPIO 57 high - S6E63D6 chipselect */ + IOMUX_MODE(MX31_PIN_KEY_COL7, IOMUX_CONFIG_GPIO), + /* GPIO keys */ + IOMUX_MODE(MX31_PIN_GPIO1_0, IOMUX_CONFIG_GPIO), /* 0 */ + IOMUX_MODE(MX31_PIN_GPIO1_1, IOMUX_CONFIG_GPIO), /* 1 */ + IOMUX_MODE(MX31_PIN_GPIO1_2, IOMUX_CONFIG_GPIO), /* 2 */ + IOMUX_MODE(MX31_PIN_GPIO1_3, IOMUX_CONFIG_GPIO), /* 3 */ + IOMUX_MODE(MX31_PIN_SVEN0, IOMUX_CONFIG_GPIO), /* 32 */ + IOMUX_MODE(MX31_PIN_STX0, IOMUX_CONFIG_GPIO), /* 33 */ + IOMUX_MODE(MX31_PIN_SRX0, IOMUX_CONFIG_GPIO), /* 34 */ + IOMUX_MODE(MX31_PIN_SIMPD0, IOMUX_CONFIG_GPIO), /* 35 */ + IOMUX_MODE(MX31_PIN_RTS1, IOMUX_CONFIG_GPIO), /* 38 */ + IOMUX_MODE(MX31_PIN_CTS1, IOMUX_CONFIG_GPIO), /* 39 */ + IOMUX_MODE(MX31_PIN_KEY_ROW4, IOMUX_CONFIG_GPIO), /* 50 */ + IOMUX_MODE(MX31_PIN_KEY_ROW5, IOMUX_CONFIG_GPIO), /* 51 */ + IOMUX_MODE(MX31_PIN_KEY_ROW6, IOMUX_CONFIG_GPIO), /* 52 */ + IOMUX_MODE(MX31_PIN_KEY_ROW7, IOMUX_CONFIG_GPIO), /* 53 */ + + /* LEDs */ + IOMUX_MODE(MX31_PIN_DTR_DTE1, IOMUX_CONFIG_GPIO), /* 44 */ + IOMUX_MODE(MX31_PIN_DSR_DTE1, IOMUX_CONFIG_GPIO), /* 45 */ + IOMUX_MODE(MX31_PIN_KEY_COL5, IOMUX_CONFIG_GPIO), /* 55 */ + IOMUX_MODE(MX31_PIN_KEY_COL6, IOMUX_CONFIG_GPIO), /* 56 */ +}; + +/* SPI */ +static struct spi_board_info pcm037_spi_dev[] = { + { + .modalias = "dac124s085", + .max_speed_hz = 400000, + .bus_num = 0, + .chip_select = 0, /* Index in pcm037_spi1_cs[] */ + .mode = SPI_CPHA, + }, +}; + +/* Platform Data for MXC CSPI */ +#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE) +static int pcm037_spi1_cs[] = {MXC_SPI_CS(1), IOMUX_TO_GPIO(MX31_PIN_KEY_COL7)}; + +struct spi_imx_master pcm037_spi1_master = { + .chipselect = pcm037_spi1_cs, + .num_chipselect = ARRAY_SIZE(pcm037_spi1_cs), +}; +#endif + +/* GPIO-keys input device */ +static struct gpio_keys_button pcm037_gpio_keys[] = { + { + .type = EV_KEY, + .code = KEY_L, + .gpio = 0, + .desc = "Wheel Manual", + .wakeup = 0, + }, { + .type = EV_KEY, + .code = KEY_A, + .gpio = 1, + .desc = "Wheel AF", + .wakeup = 0, + }, { + .type = EV_KEY, + .code = KEY_V, + .gpio = 2, + .desc = "Wheel View", + .wakeup = 0, + }, { + .type = EV_KEY, + .code = KEY_M, + .gpio = 3, + .desc = "Wheel Menu", + .wakeup = 0, + }, { + .type = EV_KEY, + .code = KEY_UP, + .gpio = 32, + .desc = "Nav Pad Up", + .wakeup = 0, + }, { + .type = EV_KEY, + .code = KEY_RIGHT, + .gpio = 33, + .desc = "Nav Pad Right", + .wakeup = 0, + }, { + .type = EV_KEY, + .code = KEY_DOWN, + .gpio = 34, + .desc = "Nav Pad Down", + .wakeup = 0, + }, { + .type = EV_KEY, + .code = KEY_LEFT, + .gpio = 35, + .desc = "Nav Pad Left", + .wakeup = 0, + }, { + .type = EV_KEY, + .code = KEY_ENTER, + .gpio = 38, + .desc = "Nav Pad Ok", + .wakeup = 0, + }, { + .type = EV_KEY, + .code = KEY_O, + .gpio = 39, + .desc = "Wheel Off", + .wakeup = 0, + }, { + .type = EV_KEY, + .code = BTN_FORWARD, + .gpio = 50, + .desc = "Focus Forward", + .wakeup = 0, + }, { + .type = EV_KEY, + .code = BTN_BACK, + .gpio = 51, + .desc = "Focus Backward", + .wakeup = 0, + }, { + .type = EV_KEY, + .code = BTN_MIDDLE, + .gpio = 52, + .desc = "Release Half", + .wakeup = 0, + }, { + .type = EV_KEY, + .code = BTN_EXTRA, + .gpio = 53, + .desc = "Release Full", + .wakeup = 0, + }, +}; + +static struct gpio_keys_platform_data pcm037_gpio_keys_platform_data = { + .buttons = pcm037_gpio_keys, + .nbuttons = ARRAY_SIZE(pcm037_gpio_keys), + .rep = 0, /* No auto-repeat */ +}; + +static struct platform_device pcm037_gpio_keys_device = { + .name = "gpio-keys", + .id = -1, + .dev = { + .platform_data = &pcm037_gpio_keys_platform_data, + }, +}; + +static int eet_init_devices(void) +{ + if (!machine_is_pcm037() || pcm037_variant() != PCM037_EET) + return 0; + + mxc_iomux_setup_multiple_pins(pcm037_eet_pins, + ARRAY_SIZE(pcm037_eet_pins), "pcm037_eet"); + + /* SPI */ + spi_register_board_info(pcm037_spi_dev, ARRAY_SIZE(pcm037_spi_dev)); +#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE) + mxc_register_device(&mxc_spi_device0, &pcm037_spi1_master); +#endif + + platform_device_register(&pcm037_gpio_keys_device); + + return 0; +} + +late_initcall(eet_init_devices); -- cgit v1.2.3 From f49156ea1bf3bccf45a01351cf3db2b5f6a8597e Mon Sep 17 00:00:00 2001 From: Timur Tabi Date: Tue, 26 May 2009 10:21:42 -0500 Subject: powerpc/qe: add polling timeout to qe_issue_cmd() The qe_issue_cmd() function (Freescale PowerPC QUICC Engine library) polls on a register until a status bit changes, but does not include a timeout to handle the situation if the bit never changes. Change the code to use the new spin_event_timeout() macro, which simplifies polling on a register without a timeout. Signed-off-by: Timur Tabi Signed-off-by: Kumar Gala --- arch/powerpc/sysdev/qe_lib/qe.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/sysdev/qe_lib/qe.c b/arch/powerpc/sysdev/qe_lib/qe.c index b28b0e512d6..237e3654f48 100644 --- a/arch/powerpc/sysdev/qe_lib/qe.c +++ b/arch/powerpc/sysdev/qe_lib/qe.c @@ -112,6 +112,7 @@ int qe_issue_cmd(u32 cmd, u32 device, u8 mcn_protocol, u32 cmd_input) { unsigned long flags; u8 mcn_shift = 0, dev_shift = 0; + u32 ret; spin_lock_irqsave(&qe_lock, flags); if (cmd == QE_RESET) { @@ -139,11 +140,13 @@ int qe_issue_cmd(u32 cmd, u32 device, u8 mcn_protocol, u32 cmd_input) } /* wait for the QE_CR_FLG to clear */ - while(in_be32(&qe_immr->cp.cecr) & QE_CR_FLG) - cpu_relax(); + ret = spin_event_timeout((in_be32(&qe_immr->cp.cecr) & QE_CR_FLG) == 0, + 100, 0); + /* On timeout (e.g. failure), the expression will be false (ret == 0), + otherwise it will be true (ret == 1). */ spin_unlock_irqrestore(&qe_lock, flags); - return 0; + return ret == 1; } EXPORT_SYMBOL(qe_issue_cmd); -- cgit v1.2.3 From 5e10cf587a7b1aa34099cbfc244e6f04e96dc835 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Tue, 19 May 2009 00:52:20 -0500 Subject: powerpc/cpm1: Remove IMAP_ADDR We no longer user IMAP_ADDR for anything so kill it off. Signed-off-by: Kumar Gala --- arch/powerpc/include/asm/cpm1.h | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/powerpc/include/asm/cpm1.h b/arch/powerpc/include/asm/cpm1.h index 2ff798744c1..7685ffde882 100644 --- a/arch/powerpc/include/asm/cpm1.h +++ b/arch/powerpc/include/asm/cpm1.h @@ -598,8 +598,6 @@ typedef struct risc_timer_pram { #define CICR_IEN ((uint)0x00000080) /* Int. enable */ #define CICR_SPS ((uint)0x00000001) /* SCC Spread */ -#define IMAP_ADDR (get_immrbase()) - #define CPM_PIN_INPUT 0 #define CPM_PIN_OUTPUT 1 #define CPM_PIN_PRIMARY 0 -- cgit v1.2.3 From a44a23ed4d144e4fb83d256b32021b732bda4787 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Thu, 18 Jun 2009 23:28:34 -0500 Subject: powerpc/85xx: Stop using ppc_md.init on socrates Match what other 85xx platforms do for of_platform_bus_probe and use machine_device_initcall. This is one small step in killing of ppc_md.init. Signed-off-by: Kumar Gala --- arch/powerpc/platforms/85xx/socrates.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/platforms/85xx/socrates.c b/arch/powerpc/platforms/85xx/socrates.c index d0e8443b12c..747d8fb3ab8 100644 --- a/arch/powerpc/platforms/85xx/socrates.c +++ b/arch/powerpc/platforms/85xx/socrates.c @@ -102,10 +102,11 @@ static struct of_device_id __initdata socrates_of_bus_ids[] = { {}, }; -static void __init socrates_init(void) +static int __init socrates_publish_devices(void) { - of_platform_bus_probe(NULL, socrates_of_bus_ids, NULL); + return of_platform_bus_probe(NULL, socrates_of_bus_ids, NULL); } +machine_device_initcall(socrates, socrates_publish_devices); /* * Called very early, device-tree isn't unflattened @@ -124,7 +125,6 @@ define_machine(socrates) { .name = "Socrates", .probe = socrates_probe, .setup_arch = socrates_setup_arch, - .init = socrates_init, .init_IRQ = socrates_pic_init, .get_irq = mpic_get_irq, .restart = fsl_rstcr_restart, -- cgit v1.2.3 From fa874618c3155e4f255387987d630a203578b5ae Mon Sep 17 00:00:00 2001 From: Randy Vinson Date: Fri, 19 Jun 2009 03:22:08 +0400 Subject: powerpc/85xx: Fix FSL RapidIO probing on MDS boards FSL RapidIO won't probe without a proper compatible entry. This patch fixes the issue by adding fsl,rapidio-delta compatible to mpc85xx_ids. Signed-off-by: Randy Vinson Signed-off-by: Anton Vorontsov Signed-off-by: Kumar Gala --- arch/powerpc/platforms/85xx/mpc85xx_mds.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c index 77f90b35635..60ed9c067b1 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c @@ -285,6 +285,7 @@ static struct of_device_id mpc85xx_ids[] = { { .type = "qe", }, { .compatible = "fsl,qe", }, { .compatible = "gianfar", }, + { .compatible = "fsl,rapidio-delta", }, {}, }; -- cgit v1.2.3 From cb1ffb6204712b04396ae0a9f3d1bf93cd8df8fb Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Fri, 19 Jun 2009 03:30:42 -0500 Subject: powerpc/85xx: Fix issue found by lockdep trace in smp_85xx_kick_cpu lockdep trace found the following: ------------[ cut here ]------------ Badness at c007baf0 [verbose debug info unavailable] NIP: c007baf0 LR: c007bad8 CTR: 00000000 REGS: ef855e00 TRAP: 0700 Tainted: G W (2.6.30-06736-g12a31df-dirty) MSR: 00021000 CR: 24044022 XER: 20000000 TASK = ef858000[1] 'swapper' THREAD: ef854000 CPU: 0 GPR00: 00000000 ef855eb0 ef858000 00000001 000000d0 f1000000 ffbc8000 ffffffff GPR08: 000000d0 c0760000 c0710000 00000007 2fffffff 1004a388 7ffd9400 00000000 GPR16: 00000000 7ffcd100 7ffcd100 7ffcd100 c059cd78 c075c498 c057da7c ffffffff GPR24: ffbc8000 f1000000 00000001 c00bf8b0 c07595d4 000000d0 00021000 000000d0 NIP [c007baf0] lockdep_trace_alloc+0xc0/0xf0 LR [c007bad8] lockdep_trace_alloc+0xa8/0xf0 Call Trace: [ef855eb0] [c007ba60] lockdep_trace_alloc+0x30/0xf0 (unreliable) [ef855ec0] [c00cb3ac] kmem_cache_alloc+0x2c/0xf0 [ef855ee0] [c00bf8b0] __get_vm_area_node+0x80/0x1c0 [ef855f10] [c0017580] __ioremap_caller+0x1d0/0x1e0 [ef855f40] [c057da7c] smp_85xx_kick_cpu+0x64/0x124 [ef855f60] [c0599180] __cpu_up+0xd0/0x1a4 [ef855f80] [c05997c4] cpu_up+0x14c/0x1e0 [ef855fc0] [c05732a0] kernel_init+0x100/0x1c4 [ef855ff0] [c0011524] kernel_thread+0x4c/0x68 Instruction dump: 8009c174 2f800000 409e0048 73c08000 40820040 4818980d 2f830000 419effa0 3d20c076 8009c388 2f800000 409eff90 <0fe00000> 4bffff88 60000000 60000000 We were calling ioremap after we local_irq_restore(flags). A simple reorder fixes the problem. Signed-off-by: Kumar Gala --- arch/powerpc/platforms/85xx/smp.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/arch/powerpc/platforms/85xx/smp.c b/arch/powerpc/platforms/85xx/smp.c index cc0b0db8a6f..62c592ede64 100644 --- a/arch/powerpc/platforms/85xx/smp.c +++ b/arch/powerpc/platforms/85xx/smp.c @@ -52,20 +52,19 @@ smp_85xx_kick_cpu(int nr) pr_debug("smp_85xx_kick_cpu: kick CPU #%d\n", nr); - local_irq_save(flags); - np = of_get_cpu_node(nr, NULL); cpu_rel_addr = of_get_property(np, "cpu-release-addr", NULL); if (cpu_rel_addr == NULL) { printk(KERN_ERR "No cpu-release-addr for cpu %d\n", nr); - local_irq_restore(flags); return; } /* Map the spin table */ bptr_vaddr = ioremap(*cpu_rel_addr, SIZE_BOOT_ENTRY); + local_irq_save(flags); + out_be32(bptr_vaddr + BOOT_ENTRY_PIR, nr); out_be32(bptr_vaddr + BOOT_ENTRY_ADDR_LOWER, __pa(__early_start)); @@ -73,10 +72,10 @@ smp_85xx_kick_cpu(int nr) while ((__secondary_hold_acknowledge != nr) && (++n < 1000)) mdelay(1); - iounmap(bptr_vaddr); - local_irq_restore(flags); + iounmap(bptr_vaddr); + pr_debug("waited %d msecs for CPU #%d.\n", n, nr); } -- cgit v1.2.3 From b053dc5a722eade28514f2cc922caf7a4baad987 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Fri, 19 Jun 2009 08:31:05 -0500 Subject: powerpc: Refactor device tree binding Split device tree binding out of booting-without-of.txt and put them into their own files per binding. Signed-off-by: Kumar Gala --- Documentation/powerpc/booting-without-of.txt | 1168 +--------------------- Documentation/powerpc/dts-bindings/4xx/emac.txt | 148 +++ Documentation/powerpc/dts-bindings/gpio/gpio.txt | 50 + Documentation/powerpc/dts-bindings/gpio/mdio.txt | 19 + Documentation/powerpc/dts-bindings/marvell.txt | 521 ++++++++++ Documentation/powerpc/dts-bindings/phy.txt | 25 + Documentation/powerpc/dts-bindings/spi-bus.txt | 57 ++ Documentation/powerpc/dts-bindings/usb-ehci.txt | 25 + Documentation/powerpc/dts-bindings/xilinx.txt | 295 ++++++ 9 files changed, 1142 insertions(+), 1166 deletions(-) create mode 100644 Documentation/powerpc/dts-bindings/4xx/emac.txt create mode 100644 Documentation/powerpc/dts-bindings/gpio/gpio.txt create mode 100644 Documentation/powerpc/dts-bindings/gpio/mdio.txt create mode 100644 Documentation/powerpc/dts-bindings/marvell.txt create mode 100644 Documentation/powerpc/dts-bindings/phy.txt create mode 100644 Documentation/powerpc/dts-bindings/spi-bus.txt create mode 100644 Documentation/powerpc/dts-bindings/usb-ehci.txt create mode 100644 Documentation/powerpc/dts-bindings/xilinx.txt diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt index 8d999d862d0..79f533f38c6 100644 --- a/Documentation/powerpc/booting-without-of.txt +++ b/Documentation/powerpc/booting-without-of.txt @@ -1238,1122 +1238,7 @@ descriptions for the SOC devices for which new nodes have been defined; this list will expand as more and more SOC-containing platforms are moved over to use the flattened-device-tree model. - a) PHY nodes - - Required properties: - - - device_type : Should be "ethernet-phy" - - interrupts : where a is the interrupt number and b is a - field that represents an encoding of the sense and level - information for the interrupt. This should be encoded based on - the information in section 2) depending on the type of interrupt - controller you have. - - interrupt-parent : the phandle for the interrupt controller that - services interrupts for this device. - - reg : The ID number for the phy, usually a small integer - - linux,phandle : phandle for this node; likely referenced by an - ethernet controller node. - - - Example: - - ethernet-phy@0 { - linux,phandle = <2452000> - interrupt-parent = <40000>; - interrupts = <35 1>; - reg = <0>; - device_type = "ethernet-phy"; - }; - - - b) Interrupt controllers - - Some SOC devices contain interrupt controllers that are different - from the standard Open PIC specification. The SOC device nodes for - these types of controllers should be specified just like a standard - OpenPIC controller. Sense and level information should be encoded - as specified in section 2) of this chapter for each device that - specifies an interrupt. - - Example : - - pic@40000 { - linux,phandle = <40000>; - interrupt-controller; - #address-cells = <0>; - reg = <40000 40000>; - compatible = "chrp,open-pic"; - device_type = "open-pic"; - }; - - c) 4xx/Axon EMAC ethernet nodes - - The EMAC ethernet controller in IBM and AMCC 4xx chips, and also - the Axon bridge. To operate this needs to interact with a ths - special McMAL DMA controller, and sometimes an RGMII or ZMII - interface. In addition to the nodes and properties described - below, the node for the OPB bus on which the EMAC sits must have a - correct clock-frequency property. - - i) The EMAC node itself - - Required properties: - - device_type : "network" - - - compatible : compatible list, contains 2 entries, first is - "ibm,emac-CHIP" where CHIP is the host ASIC (440gx, - 405gp, Axon) and second is either "ibm,emac" or - "ibm,emac4". For Axon, thus, we have: "ibm,emac-axon", - "ibm,emac4" - - interrupts : - - interrupt-parent : optional, if needed for interrupt mapping - - reg : - - local-mac-address : 6 bytes, MAC address - - mal-device : phandle of the associated McMAL node - - mal-tx-channel : 1 cell, index of the tx channel on McMAL associated - with this EMAC - - mal-rx-channel : 1 cell, index of the rx channel on McMAL associated - with this EMAC - - cell-index : 1 cell, hardware index of the EMAC cell on a given - ASIC (typically 0x0 and 0x1 for EMAC0 and EMAC1 on - each Axon chip) - - max-frame-size : 1 cell, maximum frame size supported in bytes - - rx-fifo-size : 1 cell, Rx fifo size in bytes for 10 and 100 Mb/sec - operations. - For Axon, 2048 - - tx-fifo-size : 1 cell, Tx fifo size in bytes for 10 and 100 Mb/sec - operations. - For Axon, 2048. - - fifo-entry-size : 1 cell, size of a fifo entry (used to calculate - thresholds). - For Axon, 0x00000010 - - mal-burst-size : 1 cell, MAL burst size (used to calculate thresholds) - in bytes. - For Axon, 0x00000100 (I think ...) - - phy-mode : string, mode of operations of the PHY interface. - Supported values are: "mii", "rmii", "smii", "rgmii", - "tbi", "gmii", rtbi", "sgmii". - For Axon on CAB, it is "rgmii" - - mdio-device : 1 cell, required iff using shared MDIO registers - (440EP). phandle of the EMAC to use to drive the - MDIO lines for the PHY used by this EMAC. - - zmii-device : 1 cell, required iff connected to a ZMII. phandle of - the ZMII device node - - zmii-channel : 1 cell, required iff connected to a ZMII. Which ZMII - channel or 0xffffffff if ZMII is only used for MDIO. - - rgmii-device : 1 cell, required iff connected to an RGMII. phandle - of the RGMII device node. - For Axon: phandle of plb5/plb4/opb/rgmii - - rgmii-channel : 1 cell, required iff connected to an RGMII. Which - RGMII channel is used by this EMAC. - Fox Axon: present, whatever value is appropriate for each - EMAC, that is the content of the current (bogus) "phy-port" - property. - - Optional properties: - - phy-address : 1 cell, optional, MDIO address of the PHY. If absent, - a search is performed. - - phy-map : 1 cell, optional, bitmap of addresses to probe the PHY - for, used if phy-address is absent. bit 0x00000001 is - MDIO address 0. - For Axon it can be absent, though my current driver - doesn't handle phy-address yet so for now, keep - 0x00ffffff in it. - - rx-fifo-size-gige : 1 cell, Rx fifo size in bytes for 1000 Mb/sec - operations (if absent the value is the same as - rx-fifo-size). For Axon, either absent or 2048. - - tx-fifo-size-gige : 1 cell, Tx fifo size in bytes for 1000 Mb/sec - operations (if absent the value is the same as - tx-fifo-size). For Axon, either absent or 2048. - - tah-device : 1 cell, optional. If connected to a TAH engine for - offload, phandle of the TAH device node. - - tah-channel : 1 cell, optional. If appropriate, channel used on the - TAH engine. - - Example: - - EMAC0: ethernet@40000800 { - device_type = "network"; - compatible = "ibm,emac-440gp", "ibm,emac"; - interrupt-parent = <&UIC1>; - interrupts = <1c 4 1d 4>; - reg = <40000800 70>; - local-mac-address = [00 04 AC E3 1B 1E]; - mal-device = <&MAL0>; - mal-tx-channel = <0 1>; - mal-rx-channel = <0>; - cell-index = <0>; - max-frame-size = <5dc>; - rx-fifo-size = <1000>; - tx-fifo-size = <800>; - phy-mode = "rmii"; - phy-map = <00000001>; - zmii-device = <&ZMII0>; - zmii-channel = <0>; - }; - - ii) McMAL node - - Required properties: - - device_type : "dma-controller" - - compatible : compatible list, containing 2 entries, first is - "ibm,mcmal-CHIP" where CHIP is the host ASIC (like - emac) and the second is either "ibm,mcmal" or - "ibm,mcmal2". - For Axon, "ibm,mcmal-axon","ibm,mcmal2" - - interrupts : . - For Axon: This is _different_ from the current - firmware. We use the "delayed" interrupts for txeob - and rxeob. Thus we end up with mapping those 5 MPIC - interrupts, all level positive sensitive: 10, 11, 32, - 33, 34 (in decimal) - - dcr-reg : < DCR registers range > - - dcr-parent : if needed for dcr-reg - - num-tx-chans : 1 cell, number of Tx channels - - num-rx-chans : 1 cell, number of Rx channels - - iii) ZMII node - - Required properties: - - compatible : compatible list, containing 2 entries, first is - "ibm,zmii-CHIP" where CHIP is the host ASIC (like - EMAC) and the second is "ibm,zmii". - For Axon, there is no ZMII node. - - reg : - - iv) RGMII node - - Required properties: - - compatible : compatible list, containing 2 entries, first is - "ibm,rgmii-CHIP" where CHIP is the host ASIC (like - EMAC) and the second is "ibm,rgmii". - For Axon, "ibm,rgmii-axon","ibm,rgmii" - - reg : - - revision : as provided by the RGMII new version register if - available. - For Axon: 0x0000012a - - d) Xilinx IP cores - - The Xilinx EDK toolchain ships with a set of IP cores (devices) for use - in Xilinx Spartan and Virtex FPGAs. The devices cover the whole range - of standard device types (network, serial, etc.) and miscellaneous - devices (gpio, LCD, spi, etc). Also, since these devices are - implemented within the fpga fabric every instance of the device can be - synthesised with different options that change the behaviour. - - Each IP-core has a set of parameters which the FPGA designer can use to - control how the core is synthesized. Historically, the EDK tool would - extract the device parameters relevant to device drivers and copy them - into an 'xparameters.h' in the form of #define symbols. This tells the - device drivers how the IP cores are configured, but it requres the kernel - to be recompiled every time the FPGA bitstream is resynthesized. - - The new approach is to export the parameters into the device tree and - generate a new device tree each time the FPGA bitstream changes. The - parameters which used to be exported as #defines will now become - properties of the device node. In general, device nodes for IP-cores - will take the following form: - - (name): (generic-name)@(base-address) { - compatible = "xlnx,(ip-core-name)-(HW_VER)" - [, (list of compatible devices), ...]; - reg = <(baseaddr) (size)>; - interrupt-parent = <&interrupt-controller-phandle>; - interrupts = < ... >; - xlnx,(parameter1) = "(string-value)"; - xlnx,(parameter2) = <(int-value)>; - }; - - (generic-name): an open firmware-style name that describes the - generic class of device. Preferably, this is one word, such - as 'serial' or 'ethernet'. - (ip-core-name): the name of the ip block (given after the BEGIN - directive in system.mhs). Should be in lowercase - and all underscores '_' converted to dashes '-'. - (name): is derived from the "PARAMETER INSTANCE" value. - (parameter#): C_* parameters from system.mhs. The C_ prefix is - dropped from the parameter name, the name is converted - to lowercase and all underscore '_' characters are - converted to dashes '-'. - (baseaddr): the baseaddr parameter value (often named C_BASEADDR). - (HW_VER): from the HW_VER parameter. - (size): the address range size (often C_HIGHADDR - C_BASEADDR + 1). - - Typically, the compatible list will include the exact IP core version - followed by an older IP core version which implements the same - interface or any other device with the same interface. - - 'reg', 'interrupt-parent' and 'interrupts' are all optional properties. - - For example, the following block from system.mhs: - - BEGIN opb_uartlite - PARAMETER INSTANCE = opb_uartlite_0 - PARAMETER HW_VER = 1.00.b - PARAMETER C_BAUDRATE = 115200 - PARAMETER C_DATA_BITS = 8 - PARAMETER C_ODD_PARITY = 0 - PARAMETER C_USE_PARITY = 0 - PARAMETER C_CLK_FREQ = 50000000 - PARAMETER C_BASEADDR = 0xEC100000 - PARAMETER C_HIGHADDR = 0xEC10FFFF - BUS_INTERFACE SOPB = opb_7 - PORT OPB_Clk = CLK_50MHz - PORT Interrupt = opb_uartlite_0_Interrupt - PORT RX = opb_uartlite_0_RX - PORT TX = opb_uartlite_0_TX - PORT OPB_Rst = sys_bus_reset_0 - END - - becomes the following device tree node: - - opb_uartlite_0: serial@ec100000 { - device_type = "serial"; - compatible = "xlnx,opb-uartlite-1.00.b"; - reg = ; - interrupt-parent = <&opb_intc_0>; - interrupts = <1 0>; // got this from the opb_intc parameters - current-speed = ; // standard serial device prop - clock-frequency = ; // standard serial device prop - xlnx,data-bits = <8>; - xlnx,odd-parity = <0>; - xlnx,use-parity = <0>; - }; - - Some IP cores actually implement 2 or more logical devices. In - this case, the device should still describe the whole IP core with - a single node and add a child node for each logical device. The - ranges property can be used to translate from parent IP-core to the - registers of each device. In addition, the parent node should be - compatible with the bus type 'xlnx,compound', and should contain - #address-cells and #size-cells, as with any other bus. (Note: this - makes the assumption that both logical devices have the same bus - binding. If this is not true, then separate nodes should be used - for each logical device). The 'cell-index' property can be used to - enumerate logical devices within an IP core. For example, the - following is the system.mhs entry for the dual ps2 controller found - on the ml403 reference design. - - BEGIN opb_ps2_dual_ref - PARAMETER INSTANCE = opb_ps2_dual_ref_0 - PARAMETER HW_VER = 1.00.a - PARAMETER C_BASEADDR = 0xA9000000 - PARAMETER C_HIGHADDR = 0xA9001FFF - BUS_INTERFACE SOPB = opb_v20_0 - PORT Sys_Intr1 = ps2_1_intr - PORT Sys_Intr2 = ps2_2_intr - PORT Clkin1 = ps2_clk_rx_1 - PORT Clkin2 = ps2_clk_rx_2 - PORT Clkpd1 = ps2_clk_tx_1 - PORT Clkpd2 = ps2_clk_tx_2 - PORT Rx1 = ps2_d_rx_1 - PORT Rx2 = ps2_d_rx_2 - PORT Txpd1 = ps2_d_tx_1 - PORT Txpd2 = ps2_d_tx_2 - END - - It would result in the following device tree nodes: - - opb_ps2_dual_ref_0: opb-ps2-dual-ref@a9000000 { - #address-cells = <1>; - #size-cells = <1>; - compatible = "xlnx,compound"; - ranges = <0 a9000000 2000>; - // If this device had extra parameters, then they would - // go here. - ps2@0 { - compatible = "xlnx,opb-ps2-dual-ref-1.00.a"; - reg = <0 40>; - interrupt-parent = <&opb_intc_0>; - interrupts = <3 0>; - cell-index = <0>; - }; - ps2@1000 { - compatible = "xlnx,opb-ps2-dual-ref-1.00.a"; - reg = <1000 40>; - interrupt-parent = <&opb_intc_0>; - interrupts = <3 0>; - cell-index = <0>; - }; - }; - - Also, the system.mhs file defines bus attachments from the processor - to the devices. The device tree structure should reflect the bus - attachments. Again an example; this system.mhs fragment: - - BEGIN ppc405_virtex4 - PARAMETER INSTANCE = ppc405_0 - PARAMETER HW_VER = 1.01.a - BUS_INTERFACE DPLB = plb_v34_0 - BUS_INTERFACE IPLB = plb_v34_0 - END - - BEGIN opb_intc - PARAMETER INSTANCE = opb_intc_0 - PARAMETER HW_VER = 1.00.c - PARAMETER C_BASEADDR = 0xD1000FC0 - PARAMETER C_HIGHADDR = 0xD1000FDF - BUS_INTERFACE SOPB = opb_v20_0 - END - - BEGIN opb_uart16550 - PARAMETER INSTANCE = opb_uart16550_0 - PARAMETER HW_VER = 1.00.d - PARAMETER C_BASEADDR = 0xa0000000 - PARAMETER C_HIGHADDR = 0xa0001FFF - BUS_INTERFACE SOPB = opb_v20_0 - END - - BEGIN plb_v34 - PARAMETER INSTANCE = plb_v34_0 - PARAMETER HW_VER = 1.02.a - END - - BEGIN plb_bram_if_cntlr - PARAMETER INSTANCE = plb_bram_if_cntlr_0 - PARAMETER HW_VER = 1.00.b - PARAMETER C_BASEADDR = 0xFFFF0000 - PARAMETER C_HIGHADDR = 0xFFFFFFFF - BUS_INTERFACE SPLB = plb_v34_0 - END - - BEGIN plb2opb_bridge - PARAMETER INSTANCE = plb2opb_bridge_0 - PARAMETER HW_VER = 1.01.a - PARAMETER C_RNG0_BASEADDR = 0x20000000 - PARAMETER C_RNG0_HIGHADDR = 0x3FFFFFFF - PARAMETER C_RNG1_BASEADDR = 0x60000000 - PARAMETER C_RNG1_HIGHADDR = 0x7FFFFFFF - PARAMETER C_RNG2_BASEADDR = 0x80000000 - PARAMETER C_RNG2_HIGHADDR = 0xBFFFFFFF - PARAMETER C_RNG3_BASEADDR = 0xC0000000 - PARAMETER C_RNG3_HIGHADDR = 0xDFFFFFFF - BUS_INTERFACE SPLB = plb_v34_0 - BUS_INTERFACE MOPB = opb_v20_0 - END - - Gives this device tree (some properties removed for clarity): - - plb@0 { - #address-cells = <1>; - #size-cells = <1>; - compatible = "xlnx,plb-v34-1.02.a"; - device_type = "ibm,plb"; - ranges; // 1:1 translation - - plb_bram_if_cntrl_0: bram@ffff0000 { - reg = ; - } - - opb@20000000 { - #address-cells = <1>; - #size-cells = <1>; - ranges = <20000000 20000000 20000000 - 60000000 60000000 20000000 - 80000000 80000000 40000000 - c0000000 c0000000 20000000>; - - opb_uart16550_0: serial@a0000000 { - reg = ; - }; - - opb_intc_0: interrupt-controller@d1000fc0 { - reg = ; - }; - }; - }; - - That covers the general approach to binding xilinx IP cores into the - device tree. The following are bindings for specific devices: - - i) Xilinx ML300 Framebuffer - - Simple framebuffer device from the ML300 reference design (also on the - ML403 reference design as well as others). - - Optional properties: - - resolution = : pixel resolution of framebuffer. Some - implementations use a different resolution. - Default is - - virt-resolution = : Size of framebuffer in memory. - Default is . - - rotate-display (empty) : rotate display 180 degrees. - - ii) Xilinx SystemACE - - The Xilinx SystemACE device is used to program FPGAs from an FPGA - bitstream stored on a CF card. It can also be used as a generic CF - interface device. - - Optional properties: - - 8-bit (empty) : Set this property for SystemACE in 8 bit mode - - iii) Xilinx EMAC and Xilinx TEMAC - - Xilinx Ethernet devices. In addition to general xilinx properties - listed above, nodes for these devices should include a phy-handle - property, and may include other common network device properties - like local-mac-address. - - iv) Xilinx Uartlite - - Xilinx uartlite devices are simple fixed speed serial ports. - - Required properties: - - current-speed : Baud rate of uartlite - - v) Xilinx hwicap - - Xilinx hwicap devices provide access to the configuration logic - of the FPGA through the Internal Configuration Access Port - (ICAP). The ICAP enables partial reconfiguration of the FPGA, - readback of the configuration information, and some control over - 'warm boots' of the FPGA fabric. - - Required properties: - - xlnx,family : The family of the FPGA, necessary since the - capabilities of the underlying ICAP hardware - differ between different families. May be - 'virtex2p', 'virtex4', or 'virtex5'. - - vi) Xilinx Uart 16550 - - Xilinx UART 16550 devices are very similar to the NS16550 but with - different register spacing and an offset from the base address. - - Required properties: - - clock-frequency : Frequency of the clock input - - reg-offset : A value of 3 is required - - reg-shift : A value of 2 is required - - e) USB EHCI controllers - - Required properties: - - compatible : should be "usb-ehci". - - reg : should contain at least address and length of the standard EHCI - register set for the device. Optional platform-dependent registers - (debug-port or other) can be also specified here, but only after - definition of standard EHCI registers. - - interrupts : one EHCI interrupt should be described here. - If device registers are implemented in big endian mode, the device - node should have "big-endian-regs" property. - If controller implementation operates with big endian descriptors, - "big-endian-desc" property should be specified. - If both big endian registers and descriptors are used by the controller - implementation, "big-endian" property can be specified instead of having - both "big-endian-regs" and "big-endian-desc". - - Example (Sequoia 440EPx): - ehci@e0000300 { - compatible = "ibm,usb-ehci-440epx", "usb-ehci"; - interrupt-parent = <&UIC0>; - interrupts = <1a 4>; - reg = <0 e0000300 90 0 e0000390 70>; - big-endian; - }; - - f) MDIO on GPIOs - - Currently defined compatibles: - - virtual,gpio-mdio - - MDC and MDIO lines connected to GPIO controllers are listed in the - gpios property as described in section VIII.1 in the following order: - - MDC, MDIO. - - Example: - - mdio { - compatible = "virtual,mdio-gpio"; - #address-cells = <1>; - #size-cells = <0>; - gpios = <&qe_pio_a 11 - &qe_pio_c 6>; - }; - - g) SPI (Serial Peripheral Interface) busses - - SPI busses can be described with a node for the SPI master device - and a set of child nodes for each SPI slave on the bus. For this - discussion, it is assumed that the system's SPI controller is in - SPI master mode. This binding does not describe SPI controllers - in slave mode. - - The SPI master node requires the following properties: - - #address-cells - number of cells required to define a chip select - address on the SPI bus. - - #size-cells - should be zero. - - compatible - name of SPI bus controller following generic names - recommended practice. - No other properties are required in the SPI bus node. It is assumed - that a driver for an SPI bus device will understand that it is an SPI bus. - However, the binding does not attempt to define the specific method for - assigning chip select numbers. Since SPI chip select configuration is - flexible and non-standardized, it is left out of this binding with the - assumption that board specific platform code will be used to manage - chip selects. Individual drivers can define additional properties to - support describing the chip select layout. - - SPI slave nodes must be children of the SPI master node and can - contain the following properties. - - reg - (required) chip select address of device. - - compatible - (required) name of SPI device following generic names - recommended practice - - spi-max-frequency - (required) Maximum SPI clocking speed of device in Hz - - spi-cpol - (optional) Empty property indicating device requires - inverse clock polarity (CPOL) mode - - spi-cpha - (optional) Empty property indicating device requires - shifted clock phase (CPHA) mode - - spi-cs-high - (optional) Empty property indicating device requires - chip select active high - - SPI example for an MPC5200 SPI bus: - spi@f00 { - #address-cells = <1>; - #size-cells = <0>; - compatible = "fsl,mpc5200b-spi","fsl,mpc5200-spi"; - reg = <0xf00 0x20>; - interrupts = <2 13 0 2 14 0>; - interrupt-parent = <&mpc5200_pic>; - - ethernet-switch@0 { - compatible = "micrel,ks8995m"; - spi-max-frequency = <1000000>; - reg = <0>; - }; - - codec@1 { - compatible = "ti,tlv320aic26"; - spi-max-frequency = <100000>; - reg = <1>; - }; - }; - -VII - Marvell Discovery mv64[345]6x System Controller chips -=========================================================== - -The Marvell mv64[345]60 series of system controller chips contain -many of the peripherals needed to implement a complete computer -system. In this section, we define device tree nodes to describe -the system controller chip itself and each of the peripherals -which it contains. Compatible string values for each node are -prefixed with the string "marvell,", for Marvell Technology Group Ltd. - -1) The /system-controller node - - This node is used to represent the system-controller and must be - present when the system uses a system controller chip. The top-level - system-controller node contains information that is global to all - devices within the system controller chip. The node name begins - with "system-controller" followed by the unit address, which is - the base address of the memory-mapped register set for the system - controller chip. - - Required properties: - - - ranges : Describes the translation of system controller addresses - for memory mapped registers. - - clock-frequency: Contains the main clock frequency for the system - controller chip. - - reg : This property defines the address and size of the - memory-mapped registers contained within the system controller - chip. The address specified in the "reg" property should match - the unit address of the system-controller node. - - #address-cells : Address representation for system controller - devices. This field represents the number of cells needed to - represent the address of the memory-mapped registers of devices - within the system controller chip. - - #size-cells : Size representation for for the memory-mapped - registers within the system controller chip. - - #interrupt-cells : Defines the width of cells used to represent - interrupts. - - Optional properties: - - - model : The specific model of the system controller chip. Such - as, "mv64360", "mv64460", or "mv64560". - - compatible : A string identifying the compatibility identifiers - of the system controller chip. - - The system-controller node contains child nodes for each system - controller device that the platform uses. Nodes should not be created - for devices which exist on the system controller chip but are not used - - Example Marvell Discovery mv64360 system-controller node: - - system-controller@f1000000 { /* Marvell Discovery mv64360 */ - #address-cells = <1>; - #size-cells = <1>; - model = "mv64360"; /* Default */ - compatible = "marvell,mv64360"; - clock-frequency = <133333333>; - reg = <0xf1000000 0x10000>; - virtual-reg = <0xf1000000>; - ranges = <0x88000000 0x88000000 0x1000000 /* PCI 0 I/O Space */ - 0x80000000 0x80000000 0x8000000 /* PCI 0 MEM Space */ - 0xa0000000 0xa0000000 0x4000000 /* User FLASH */ - 0x00000000 0xf1000000 0x0010000 /* Bridge's regs */ - 0xf2000000 0xf2000000 0x0040000>;/* Integrated SRAM */ - - [ child node definitions... ] - } - -2) Child nodes of /system-controller - - a) Marvell Discovery MDIO bus - - The MDIO is a bus to which the PHY devices are connected. For each - device that exists on this bus, a child node should be created. See - the definition of the PHY node below for an example of how to define - a PHY. - - Required properties: - - #address-cells : Should be <1> - - #size-cells : Should be <0> - - device_type : Should be "mdio" - - compatible : Should be "marvell,mv64360-mdio" - - Example: - - mdio { - #address-cells = <1>; - #size-cells = <0>; - device_type = "mdio"; - compatible = "marvell,mv64360-mdio"; - - ethernet-phy@0 { - ...... - }; - }; - - - b) Marvell Discovery ethernet controller - - The Discover ethernet controller is described with two levels - of nodes. The first level describes an ethernet silicon block - and the second level describes up to 3 ethernet nodes within - that block. The reason for the multiple levels is that the - registers for the node are interleaved within a single set - of registers. The "ethernet-block" level describes the - shared register set, and the "ethernet" nodes describe ethernet - port-specific properties. - - Ethernet block node - - Required properties: - - #address-cells : <1> - - #size-cells : <0> - - compatible : "marvell,mv64360-eth-block" - - reg : Offset and length of the register set for this block - - Example Discovery Ethernet block node: - ethernet-block@2000 { - #address-cells = <1>; - #size-cells = <0>; - compatible = "marvell,mv64360-eth-block"; - reg = <0x2000 0x2000>; - ethernet@0 { - ....... - }; - }; - - Ethernet port node - - Required properties: - - device_type : Should be "network". - - compatible : Should be "marvell,mv64360-eth". - - reg : Should be <0>, <1>, or <2>, according to which registers - within the silicon block the device uses. - - interrupts : where a is the interrupt number for the port. - - interrupt-parent : the phandle for the interrupt controller - that services interrupts for this device. - - phy : the phandle for the PHY connected to this ethernet - controller. - - local-mac-address : 6 bytes, MAC address - - Example Discovery Ethernet port node: - ethernet@0 { - device_type = "network"; - compatible = "marvell,mv64360-eth"; - reg = <0>; - interrupts = <32>; - interrupt-parent = <&PIC>; - phy = <&PHY0>; - local-mac-address = [ 00 00 00 00 00 00 ]; - }; - - - - c) Marvell Discovery PHY nodes - - Required properties: - - device_type : Should be "ethernet-phy" - - interrupts : where a is the interrupt number for this phy. - - interrupt-parent : the phandle for the interrupt controller that - services interrupts for this device. - - reg : The ID number for the phy, usually a small integer - - Example Discovery PHY node: - ethernet-phy@1 { - device_type = "ethernet-phy"; - compatible = "broadcom,bcm5421"; - interrupts = <76>; /* GPP 12 */ - interrupt-parent = <&PIC>; - reg = <1>; - }; - - - d) Marvell Discovery SDMA nodes - - Represent DMA hardware associated with the MPSC (multiprotocol - serial controllers). - - Required properties: - - compatible : "marvell,mv64360-sdma" - - reg : Offset and length of the register set for this device - - interrupts : where a is the interrupt number for the DMA - device. - - interrupt-parent : the phandle for the interrupt controller - that services interrupts for this device. - - Example Discovery SDMA node: - sdma@4000 { - compatible = "marvell,mv64360-sdma"; - reg = <0x4000 0xc18>; - virtual-reg = <0xf1004000>; - interrupts = <36>; - interrupt-parent = <&PIC>; - }; - - - e) Marvell Discovery BRG nodes - - Represent baud rate generator hardware associated with the MPSC - (multiprotocol serial controllers). - - Required properties: - - compatible : "marvell,mv64360-brg" - - reg : Offset and length of the register set for this device - - clock-src : A value from 0 to 15 which selects the clock - source for the baud rate generator. This value corresponds - to the CLKS value in the BRGx configuration register. See - the mv64x60 User's Manual. - - clock-frequence : The frequency (in Hz) of the baud rate - generator's input clock. - - current-speed : The current speed setting (presumably by - firmware) of the baud rate generator. - - Example Discovery BRG node: - brg@b200 { - compatible = "marvell,mv64360-brg"; - reg = <0xb200 0x8>; - clock-src = <8>; - clock-frequency = <133333333>; - current-speed = <9600>; - }; - - - f) Marvell Discovery CUNIT nodes - - Represent the Serial Communications Unit device hardware. - - Required properties: - - reg : Offset and length of the register set for this device - - Example Discovery CUNIT node: - cunit@f200 { - reg = <0xf200 0x200>; - }; - - - g) Marvell Discovery MPSCROUTING nodes - - Represent the Discovery's MPSC routing hardware - - Required properties: - - reg : Offset and length of the register set for this device - - Example Discovery CUNIT node: - mpscrouting@b500 { - reg = <0xb400 0xc>; - }; - - - h) Marvell Discovery MPSCINTR nodes - - Represent the Discovery's MPSC DMA interrupt hardware registers - (SDMA cause and mask registers). - - Required properties: - - reg : Offset and length of the register set for this device - - Example Discovery MPSCINTR node: - mpsintr@b800 { - reg = <0xb800 0x100>; - }; - - - i) Marvell Discovery MPSC nodes - - Represent the Discovery's MPSC (Multiprotocol Serial Controller) - serial port. - - Required properties: - - device_type : "serial" - - compatible : "marvell,mv64360-mpsc" - - reg : Offset and length of the register set for this device - - sdma : the phandle for the SDMA node used by this port - - brg : the phandle for the BRG node used by this port - - cunit : the phandle for the CUNIT node used by this port - - mpscrouting : the phandle for the MPSCROUTING node used by this port - - mpscintr : the phandle for the MPSCINTR node used by this port - - cell-index : the hardware index of this cell in the MPSC core - - max_idle : value needed for MPSC CHR3 (Maximum Frame Length) - register - - interrupts : where a is the interrupt number for the MPSC. - - interrupt-parent : the phandle for the interrupt controller - that services interrupts for this device. - - Example Discovery MPSCINTR node: - mpsc@8000 { - device_type = "serial"; - compatible = "marvell,mv64360-mpsc"; - reg = <0x8000 0x38>; - virtual-reg = <0xf1008000>; - sdma = <&SDMA0>; - brg = <&BRG0>; - cunit = <&CUNIT>; - mpscrouting = <&MPSCROUTING>; - mpscintr = <&MPSCINTR>; - cell-index = <0>; - max_idle = <40>; - interrupts = <40>; - interrupt-parent = <&PIC>; - }; - - - j) Marvell Discovery Watch Dog Timer nodes - - Represent the Discovery's watchdog timer hardware - - Required properties: - - compatible : "marvell,mv64360-wdt" - - reg : Offset and length of the register set for this device - - Example Discovery Watch Dog Timer node: - wdt@b410 { - compatible = "marvell,mv64360-wdt"; - reg = <0xb410 0x8>; - }; - - - k) Marvell Discovery I2C nodes - - Represent the Discovery's I2C hardware - - Required properties: - - device_type : "i2c" - - compatible : "marvell,mv64360-i2c" - - reg : Offset and length of the register set for this device - - interrupts : where a is the interrupt number for the I2C. - - interrupt-parent : the phandle for the interrupt controller - that services interrupts for this device. - - Example Discovery I2C node: - compatible = "marvell,mv64360-i2c"; - reg = <0xc000 0x20>; - virtual-reg = <0xf100c000>; - interrupts = <37>; - interrupt-parent = <&PIC>; - }; - - - l) Marvell Discovery PIC (Programmable Interrupt Controller) nodes - - Represent the Discovery's PIC hardware - - Required properties: - - #interrupt-cells : <1> - - #address-cells : <0> - - compatible : "marvell,mv64360-pic" - - reg : Offset and length of the register set for this device - - interrupt-controller - - Example Discovery PIC node: - pic { - #interrupt-cells = <1>; - #address-cells = <0>; - compatible = "marvell,mv64360-pic"; - reg = <0x0 0x88>; - interrupt-controller; - }; - - - m) Marvell Discovery MPP (Multipurpose Pins) multiplexing nodes - - Represent the Discovery's MPP hardware - - Required properties: - - compatible : "marvell,mv64360-mpp" - - reg : Offset and length of the register set for this device - - Example Discovery MPP node: - mpp@f000 { - compatible = "marvell,mv64360-mpp"; - reg = <0xf000 0x10>; - }; - - - n) Marvell Discovery GPP (General Purpose Pins) nodes - - Represent the Discovery's GPP hardware - - Required properties: - - compatible : "marvell,mv64360-gpp" - - reg : Offset and length of the register set for this device - - Example Discovery GPP node: - gpp@f000 { - compatible = "marvell,mv64360-gpp"; - reg = <0xf100 0x20>; - }; - - - o) Marvell Discovery PCI host bridge node - - Represents the Discovery's PCI host bridge device. The properties - for this node conform to Rev 2.1 of the PCI Bus Binding to IEEE - 1275-1994. A typical value for the compatible property is - "marvell,mv64360-pci". - - Example Discovery PCI host bridge node - pci@80000000 { - #address-cells = <3>; - #size-cells = <2>; - #interrupt-cells = <1>; - device_type = "pci"; - compatible = "marvell,mv64360-pci"; - reg = <0xcf8 0x8>; - ranges = <0x01000000 0x0 0x0 - 0x88000000 0x0 0x01000000 - 0x02000000 0x0 0x80000000 - 0x80000000 0x0 0x08000000>; - bus-range = <0 255>; - clock-frequency = <66000000>; - interrupt-parent = <&PIC>; - interrupt-map-mask = <0xf800 0x0 0x0 0x7>; - interrupt-map = < - /* IDSEL 0x0a */ - 0x5000 0 0 1 &PIC 80 - 0x5000 0 0 2 &PIC 81 - 0x5000 0 0 3 &PIC 91 - 0x5000 0 0 4 &PIC 93 - - /* IDSEL 0x0b */ - 0x5800 0 0 1 &PIC 91 - 0x5800 0 0 2 &PIC 93 - 0x5800 0 0 3 &PIC 80 - 0x5800 0 0 4 &PIC 81 - - /* IDSEL 0x0c */ - 0x6000 0 0 1 &PIC 91 - 0x6000 0 0 2 &PIC 93 - 0x6000 0 0 3 &PIC 80 - 0x6000 0 0 4 &PIC 81 - - /* IDSEL 0x0d */ - 0x6800 0 0 1 &PIC 93 - 0x6800 0 0 2 &PIC 80 - 0x6800 0 0 3 &PIC 81 - 0x6800 0 0 4 &PIC 91 - >; - }; - - - p) Marvell Discovery CPU Error nodes - - Represent the Discovery's CPU error handler device. - - Required properties: - - compatible : "marvell,mv64360-cpu-error" - - reg : Offset and length of the register set for this device - - interrupts : the interrupt number for this device - - interrupt-parent : the phandle for the interrupt controller - that services interrupts for this device. - - Example Discovery CPU Error node: - cpu-error@0070 { - compatible = "marvell,mv64360-cpu-error"; - reg = <0x70 0x10 0x128 0x28>; - interrupts = <3>; - interrupt-parent = <&PIC>; - }; - - - q) Marvell Discovery SRAM Controller nodes - - Represent the Discovery's SRAM controller device. - - Required properties: - - compatible : "marvell,mv64360-sram-ctrl" - - reg : Offset and length of the register set for this device - - interrupts : the interrupt number for this device - - interrupt-parent : the phandle for the interrupt controller - that services interrupts for this device. - - Example Discovery SRAM Controller node: - sram-ctrl@0380 { - compatible = "marvell,mv64360-sram-ctrl"; - reg = <0x380 0x80>; - interrupts = <13>; - interrupt-parent = <&PIC>; - }; - - - r) Marvell Discovery PCI Error Handler nodes - - Represent the Discovery's PCI error handler device. - - Required properties: - - compatible : "marvell,mv64360-pci-error" - - reg : Offset and length of the register set for this device - - interrupts : the interrupt number for this device - - interrupt-parent : the phandle for the interrupt controller - that services interrupts for this device. - - Example Discovery PCI Error Handler node: - pci-error@1d40 { - compatible = "marvell,mv64360-pci-error"; - reg = <0x1d40 0x40 0xc28 0x4>; - interrupts = <12>; - interrupt-parent = <&PIC>; - }; - - - s) Marvell Discovery Memory Controller nodes - - Represent the Discovery's memory controller device. - - Required properties: - - compatible : "marvell,mv64360-mem-ctrl" - - reg : Offset and length of the register set for this device - - interrupts : the interrupt number for this device - - interrupt-parent : the phandle for the interrupt controller - that services interrupts for this device. - - Example Discovery Memory Controller node: - mem-ctrl@1400 { - compatible = "marvell,mv64360-mem-ctrl"; - reg = <0x1400 0x60>; - interrupts = <17>; - interrupt-parent = <&PIC>; - }; - - -VIII - Specifying interrupt information for devices +VII - Specifying interrupt information for devices =================================================== The device tree represents the busses and devices of a hardware @@ -2439,56 +1324,7 @@ encodings listed below: 2 = high to low edge sensitive type enabled 3 = low to high edge sensitive type enabled -IX - Specifying GPIO information for devices -============================================ - -1) gpios property ------------------ - -Nodes that makes use of GPIOs should define them using `gpios' property, -format of which is: <&gpio-controller1-phandle gpio1-specifier - &gpio-controller2-phandle gpio2-specifier - 0 /* holes are permitted, means no GPIO 3 */ - &gpio-controller4-phandle gpio4-specifier - ...>; - -Note that gpio-specifier length is controller dependent. - -gpio-specifier may encode: bank, pin position inside the bank, -whether pin is open-drain and whether pin is logically inverted. - -Example of the node using GPIOs: - - node { - gpios = <&qe_pio_e 18 0>; - }; - -In this example gpio-specifier is "18 0" and encodes GPIO pin number, -and empty GPIO flags as accepted by the "qe_pio_e" gpio-controller. - -2) gpio-controller nodes ------------------------- - -Every GPIO controller node must have #gpio-cells property defined, -this information will be used to translate gpio-specifiers. - -Example of two SOC GPIO banks defined as gpio-controller nodes: - - qe_pio_a: gpio-controller@1400 { - #gpio-cells = <2>; - compatible = "fsl,qe-pario-bank-a", "fsl,qe-pario-bank"; - reg = <0x1400 0x18>; - gpio-controller; - }; - - qe_pio_e: gpio-controller@1460 { - #gpio-cells = <2>; - compatible = "fsl,qe-pario-bank-e", "fsl,qe-pario-bank"; - reg = <0x1460 0x18>; - gpio-controller; - }; - -X - Specifying Device Power Management Information (sleep property) +VIII - Specifying Device Power Management Information (sleep property) =================================================================== Devices on SOCs often have mechanisms for placing devices into low-power diff --git a/Documentation/powerpc/dts-bindings/4xx/emac.txt b/Documentation/powerpc/dts-bindings/4xx/emac.txt new file mode 100644 index 00000000000..2161334a7ca --- /dev/null +++ b/Documentation/powerpc/dts-bindings/4xx/emac.txt @@ -0,0 +1,148 @@ + 4xx/Axon EMAC ethernet nodes + + The EMAC ethernet controller in IBM and AMCC 4xx chips, and also + the Axon bridge. To operate this needs to interact with a ths + special McMAL DMA controller, and sometimes an RGMII or ZMII + interface. In addition to the nodes and properties described + below, the node for the OPB bus on which the EMAC sits must have a + correct clock-frequency property. + + i) The EMAC node itself + + Required properties: + - device_type : "network" + + - compatible : compatible list, contains 2 entries, first is + "ibm,emac-CHIP" where CHIP is the host ASIC (440gx, + 405gp, Axon) and second is either "ibm,emac" or + "ibm,emac4". For Axon, thus, we have: "ibm,emac-axon", + "ibm,emac4" + - interrupts : + - interrupt-parent : optional, if needed for interrupt mapping + - reg : + - local-mac-address : 6 bytes, MAC address + - mal-device : phandle of the associated McMAL node + - mal-tx-channel : 1 cell, index of the tx channel on McMAL associated + with this EMAC + - mal-rx-channel : 1 cell, index of the rx channel on McMAL associated + with this EMAC + - cell-index : 1 cell, hardware index of the EMAC cell on a given + ASIC (typically 0x0 and 0x1 for EMAC0 and EMAC1 on + each Axon chip) + - max-frame-size : 1 cell, maximum frame size supported in bytes + - rx-fifo-size : 1 cell, Rx fifo size in bytes for 10 and 100 Mb/sec + operations. + For Axon, 2048 + - tx-fifo-size : 1 cell, Tx fifo size in bytes for 10 and 100 Mb/sec + operations. + For Axon, 2048. + - fifo-entry-size : 1 cell, size of a fifo entry (used to calculate + thresholds). + For Axon, 0x00000010 + - mal-burst-size : 1 cell, MAL burst size (used to calculate thresholds) + in bytes. + For Axon, 0x00000100 (I think ...) + - phy-mode : string, mode of operations of the PHY interface. + Supported values are: "mii", "rmii", "smii", "rgmii", + "tbi", "gmii", rtbi", "sgmii". + For Axon on CAB, it is "rgmii" + - mdio-device : 1 cell, required iff using shared MDIO registers + (440EP). phandle of the EMAC to use to drive the + MDIO lines for the PHY used by this EMAC. + - zmii-device : 1 cell, required iff connected to a ZMII. phandle of + the ZMII device node + - zmii-channel : 1 cell, required iff connected to a ZMII. Which ZMII + channel or 0xffffffff if ZMII is only used for MDIO. + - rgmii-device : 1 cell, required iff connected to an RGMII. phandle + of the RGMII device node. + For Axon: phandle of plb5/plb4/opb/rgmii + - rgmii-channel : 1 cell, required iff connected to an RGMII. Which + RGMII channel is used by this EMAC. + Fox Axon: present, whatever value is appropriate for each + EMAC, that is the content of the current (bogus) "phy-port" + property. + + Optional properties: + - phy-address : 1 cell, optional, MDIO address of the PHY. If absent, + a search is performed. + - phy-map : 1 cell, optional, bitmap of addresses to probe the PHY + for, used if phy-address is absent. bit 0x00000001 is + MDIO address 0. + For Axon it can be absent, though my current driver + doesn't handle phy-address yet so for now, keep + 0x00ffffff in it. + - rx-fifo-size-gige : 1 cell, Rx fifo size in bytes for 1000 Mb/sec + operations (if absent the value is the same as + rx-fifo-size). For Axon, either absent or 2048. + - tx-fifo-size-gige : 1 cell, Tx fifo size in bytes for 1000 Mb/sec + operations (if absent the value is the same as + tx-fifo-size). For Axon, either absent or 2048. + - tah-device : 1 cell, optional. If connected to a TAH engine for + offload, phandle of the TAH device node. + - tah-channel : 1 cell, optional. If appropriate, channel used on the + TAH engine. + + Example: + + EMAC0: ethernet@40000800 { + device_type = "network"; + compatible = "ibm,emac-440gp", "ibm,emac"; + interrupt-parent = <&UIC1>; + interrupts = <1c 4 1d 4>; + reg = <40000800 70>; + local-mac-address = [00 04 AC E3 1B 1E]; + mal-device = <&MAL0>; + mal-tx-channel = <0 1>; + mal-rx-channel = <0>; + cell-index = <0>; + max-frame-size = <5dc>; + rx-fifo-size = <1000>; + tx-fifo-size = <800>; + phy-mode = "rmii"; + phy-map = <00000001>; + zmii-device = <&ZMII0>; + zmii-channel = <0>; + }; + + ii) McMAL node + + Required properties: + - device_type : "dma-controller" + - compatible : compatible list, containing 2 entries, first is + "ibm,mcmal-CHIP" where CHIP is the host ASIC (like + emac) and the second is either "ibm,mcmal" or + "ibm,mcmal2". + For Axon, "ibm,mcmal-axon","ibm,mcmal2" + - interrupts : . + For Axon: This is _different_ from the current + firmware. We use the "delayed" interrupts for txeob + and rxeob. Thus we end up with mapping those 5 MPIC + interrupts, all level positive sensitive: 10, 11, 32, + 33, 34 (in decimal) + - dcr-reg : < DCR registers range > + - dcr-parent : if needed for dcr-reg + - num-tx-chans : 1 cell, number of Tx channels + - num-rx-chans : 1 cell, number of Rx channels + + iii) ZMII node + + Required properties: + - compatible : compatible list, containing 2 entries, first is + "ibm,zmii-CHIP" where CHIP is the host ASIC (like + EMAC) and the second is "ibm,zmii". + For Axon, there is no ZMII node. + - reg : + + iv) RGMII node + + Required properties: + - compatible : compatible list, containing 2 entries, first is + "ibm,rgmii-CHIP" where CHIP is the host ASIC (like + EMAC) and the second is "ibm,rgmii". + For Axon, "ibm,rgmii-axon","ibm,rgmii" + - reg : + - revision : as provided by the RGMII new version register if + available. + For Axon: 0x0000012a + diff --git a/Documentation/powerpc/dts-bindings/gpio/gpio.txt b/Documentation/powerpc/dts-bindings/gpio/gpio.txt new file mode 100644 index 00000000000..edaa84d288a --- /dev/null +++ b/Documentation/powerpc/dts-bindings/gpio/gpio.txt @@ -0,0 +1,50 @@ +Specifying GPIO information for devices +============================================ + +1) gpios property +----------------- + +Nodes that makes use of GPIOs should define them using `gpios' property, +format of which is: <&gpio-controller1-phandle gpio1-specifier + &gpio-controller2-phandle gpio2-specifier + 0 /* holes are permitted, means no GPIO 3 */ + &gpio-controller4-phandle gpio4-specifier + ...>; + +Note that gpio-specifier length is controller dependent. + +gpio-specifier may encode: bank, pin position inside the bank, +whether pin is open-drain and whether pin is logically inverted. + +Example of the node using GPIOs: + + node { + gpios = <&qe_pio_e 18 0>; + }; + +In this example gpio-specifier is "18 0" and encodes GPIO pin number, +and empty GPIO flags as accepted by the "qe_pio_e" gpio-controller. + +2) gpio-controller nodes +------------------------ + +Every GPIO controller node must have #gpio-cells property defined, +this information will be used to translate gpio-specifiers. + +Example of two SOC GPIO banks defined as gpio-controller nodes: + + qe_pio_a: gpio-controller@1400 { + #gpio-cells = <2>; + compatible = "fsl,qe-pario-bank-a", "fsl,qe-pario-bank"; + reg = <0x1400 0x18>; + gpio-controller; + }; + + qe_pio_e: gpio-controller@1460 { + #gpio-cells = <2>; + compatible = "fsl,qe-pario-bank-e", "fsl,qe-pario-bank"; + reg = <0x1460 0x18>; + gpio-controller; + }; + + diff --git a/Documentation/powerpc/dts-bindings/gpio/mdio.txt b/Documentation/powerpc/dts-bindings/gpio/mdio.txt new file mode 100644 index 00000000000..bc954952901 --- /dev/null +++ b/Documentation/powerpc/dts-bindings/gpio/mdio.txt @@ -0,0 +1,19 @@ +MDIO on GPIOs + +Currently defined compatibles: +- virtual,gpio-mdio + +MDC and MDIO lines connected to GPIO controllers are listed in the +gpios property as described in section VIII.1 in the following order: + +MDC, MDIO. + +Example: + +mdio { + compatible = "virtual,mdio-gpio"; + #address-cells = <1>; + #size-cells = <0>; + gpios = <&qe_pio_a 11 + &qe_pio_c 6>; +}; diff --git a/Documentation/powerpc/dts-bindings/marvell.txt b/Documentation/powerpc/dts-bindings/marvell.txt new file mode 100644 index 00000000000..3708a2fd474 --- /dev/null +++ b/Documentation/powerpc/dts-bindings/marvell.txt @@ -0,0 +1,521 @@ +Marvell Discovery mv64[345]6x System Controller chips +=========================================================== + +The Marvell mv64[345]60 series of system controller chips contain +many of the peripherals needed to implement a complete computer +system. In this section, we define device tree nodes to describe +the system controller chip itself and each of the peripherals +which it contains. Compatible string values for each node are +prefixed with the string "marvell,", for Marvell Technology Group Ltd. + +1) The /system-controller node + + This node is used to represent the system-controller and must be + present when the system uses a system controller chip. The top-level + system-controller node contains information that is global to all + devices within the system controller chip. The node name begins + with "system-controller" followed by the unit address, which is + the base address of the memory-mapped register set for the system + controller chip. + + Required properties: + + - ranges : Describes the translation of system controller addresses + for memory mapped registers. + - clock-frequency: Contains the main clock frequency for the system + controller chip. + - reg : This property defines the address and size of the + memory-mapped registers contained within the system controller + chip. The address specified in the "reg" property should match + the unit address of the system-controller node. + - #address-cells : Address representation for system controller + devices. This field represents the number of cells needed to + represent the address of the memory-mapped registers of devices + within the system controller chip. + - #size-cells : Size representation for for the memory-mapped + registers within the system controller chip. + - #interrupt-cells : Defines the width of cells used to represent + interrupts. + + Optional properties: + + - model : The specific model of the system controller chip. Such + as, "mv64360", "mv64460", or "mv64560". + - compatible : A string identifying the compatibility identifiers + of the system controller chip. + + The system-controller node contains child nodes for each system + controller device that the platform uses. Nodes should not be created + for devices which exist on the system controller chip but are not used + + Example Marvell Discovery mv64360 system-controller node: + + system-controller@f1000000 { /* Marvell Discovery mv64360 */ + #address-cells = <1>; + #size-cells = <1>; + model = "mv64360"; /* Default */ + compatible = "marvell,mv64360"; + clock-frequency = <133333333>; + reg = <0xf1000000 0x10000>; + virtual-reg = <0xf1000000>; + ranges = <0x88000000 0x88000000 0x1000000 /* PCI 0 I/O Space */ + 0x80000000 0x80000000 0x8000000 /* PCI 0 MEM Space */ + 0xa0000000 0xa0000000 0x4000000 /* User FLASH */ + 0x00000000 0xf1000000 0x0010000 /* Bridge's regs */ + 0xf2000000 0xf2000000 0x0040000>;/* Integrated SRAM */ + + [ child node definitions... ] + } + +2) Child nodes of /system-controller + + a) Marvell Discovery MDIO bus + + The MDIO is a bus to which the PHY devices are connected. For each + device that exists on this bus, a child node should be created. See + the definition of the PHY node below for an example of how to define + a PHY. + + Required properties: + - #address-cells : Should be <1> + - #size-cells : Should be <0> + - device_type : Should be "mdio" + - compatible : Should be "marvell,mv64360-mdio" + + Example: + + mdio { + #address-cells = <1>; + #size-cells = <0>; + device_type = "mdio"; + compatible = "marvell,mv64360-mdio"; + + ethernet-phy@0 { + ...... + }; + }; + + + b) Marvell Discovery ethernet controller + + The Discover ethernet controller is described with two levels + of nodes. The first level describes an ethernet silicon block + and the second level describes up to 3 ethernet nodes within + that block. The reason for the multiple levels is that the + registers for the node are interleaved within a single set + of registers. The "ethernet-block" level describes the + shared register set, and the "ethernet" nodes describe ethernet + port-specific properties. + + Ethernet block node + + Required properties: + - #address-cells : <1> + - #size-cells : <0> + - compatible : "marvell,mv64360-eth-block" + - reg : Offset and length of the register set for this block + + Example Discovery Ethernet block node: + ethernet-block@2000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "marvell,mv64360-eth-block"; + reg = <0x2000 0x2000>; + ethernet@0 { + ....... + }; + }; + + Ethernet port node + + Required properties: + - device_type : Should be "network". + - compatible : Should be "marvell,mv64360-eth". + - reg : Should be <0>, <1>, or <2>, according to which registers + within the silicon block the device uses. + - interrupts : where a is the interrupt number for the port. + - interrupt-parent : the phandle for the interrupt controller + that services interrupts for this device. + - phy : the phandle for the PHY connected to this ethernet + controller. + - local-mac-address : 6 bytes, MAC address + + Example Discovery Ethernet port node: + ethernet@0 { + device_type = "network"; + compatible = "marvell,mv64360-eth"; + reg = <0>; + interrupts = <32>; + interrupt-parent = <&PIC>; + phy = <&PHY0>; + local-mac-address = [ 00 00 00 00 00 00 ]; + }; + + + + c) Marvell Discovery PHY nodes + + Required properties: + - device_type : Should be "ethernet-phy" + - interrupts : where a is the interrupt number for this phy. + - interrupt-parent : the phandle for the interrupt controller that + services interrupts for this device. + - reg : The ID number for the phy, usually a small integer + + Example Discovery PHY node: + ethernet-phy@1 { + device_type = "ethernet-phy"; + compatible = "broadcom,bcm5421"; + interrupts = <76>; /* GPP 12 */ + interrupt-parent = <&PIC>; + reg = <1>; + }; + + + d) Marvell Discovery SDMA nodes + + Represent DMA hardware associated with the MPSC (multiprotocol + serial controllers). + + Required properties: + - compatible : "marvell,mv64360-sdma" + - reg : Offset and length of the register set for this device + - interrupts : where a is the interrupt number for the DMA + device. + - interrupt-parent : the phandle for the interrupt controller + that services interrupts for this device. + + Example Discovery SDMA node: + sdma@4000 { + compatible = "marvell,mv64360-sdma"; + reg = <0x4000 0xc18>; + virtual-reg = <0xf1004000>; + interrupts = <36>; + interrupt-parent = <&PIC>; + }; + + + e) Marvell Discovery BRG nodes + + Represent baud rate generator hardware associated with the MPSC + (multiprotocol serial controllers). + + Required properties: + - compatible : "marvell,mv64360-brg" + - reg : Offset and length of the register set for this device + - clock-src : A value from 0 to 15 which selects the clock + source for the baud rate generator. This value corresponds + to the CLKS value in the BRGx configuration register. See + the mv64x60 User's Manual. + - clock-frequence : The frequency (in Hz) of the baud rate + generator's input clock. + - current-speed : The current speed setting (presumably by + firmware) of the baud rate generator. + + Example Discovery BRG node: + brg@b200 { + compatible = "marvell,mv64360-brg"; + reg = <0xb200 0x8>; + clock-src = <8>; + clock-frequency = <133333333>; + current-speed = <9600>; + }; + + + f) Marvell Discovery CUNIT nodes + + Represent the Serial Communications Unit device hardware. + + Required properties: + - reg : Offset and length of the register set for this device + + Example Discovery CUNIT node: + cunit@f200 { + reg = <0xf200 0x200>; + }; + + + g) Marvell Discovery MPSCROUTING nodes + + Represent the Discovery's MPSC routing hardware + + Required properties: + - reg : Offset and length of the register set for this device + + Example Discovery CUNIT node: + mpscrouting@b500 { + reg = <0xb400 0xc>; + }; + + + h) Marvell Discovery MPSCINTR nodes + + Represent the Discovery's MPSC DMA interrupt hardware registers + (SDMA cause and mask registers). + + Required properties: + - reg : Offset and length of the register set for this device + + Example Discovery MPSCINTR node: + mpsintr@b800 { + reg = <0xb800 0x100>; + }; + + + i) Marvell Discovery MPSC nodes + + Represent the Discovery's MPSC (Multiprotocol Serial Controller) + serial port. + + Required properties: + - device_type : "serial" + - compatible : "marvell,mv64360-mpsc" + - reg : Offset and length of the register set for this device + - sdma : the phandle for the SDMA node used by this port + - brg : the phandle for the BRG node used by this port + - cunit : the phandle for the CUNIT node used by this port + - mpscrouting : the phandle for the MPSCROUTING node used by this port + - mpscintr : the phandle for the MPSCINTR node used by this port + - cell-index : the hardware index of this cell in the MPSC core + - max_idle : value needed for MPSC CHR3 (Maximum Frame Length) + register + - interrupts : where a is the interrupt number for the MPSC. + - interrupt-parent : the phandle for the interrupt controller + that services interrupts for this device. + + Example Discovery MPSCINTR node: + mpsc@8000 { + device_type = "serial"; + compatible = "marvell,mv64360-mpsc"; + reg = <0x8000 0x38>; + virtual-reg = <0xf1008000>; + sdma = <&SDMA0>; + brg = <&BRG0>; + cunit = <&CUNIT>; + mpscrouting = <&MPSCROUTING>; + mpscintr = <&MPSCINTR>; + cell-index = <0>; + max_idle = <40>; + interrupts = <40>; + interrupt-parent = <&PIC>; + }; + + + j) Marvell Discovery Watch Dog Timer nodes + + Represent the Discovery's watchdog timer hardware + + Required properties: + - compatible : "marvell,mv64360-wdt" + - reg : Offset and length of the register set for this device + + Example Discovery Watch Dog Timer node: + wdt@b410 { + compatible = "marvell,mv64360-wdt"; + reg = <0xb410 0x8>; + }; + + + k) Marvell Discovery I2C nodes + + Represent the Discovery's I2C hardware + + Required properties: + - device_type : "i2c" + - compatible : "marvell,mv64360-i2c" + - reg : Offset and length of the register set for this device + - interrupts : where a is the interrupt number for the I2C. + - interrupt-parent : the phandle for the interrupt controller + that services interrupts for this device. + + Example Discovery I2C node: + compatible = "marvell,mv64360-i2c"; + reg = <0xc000 0x20>; + virtual-reg = <0xf100c000>; + interrupts = <37>; + interrupt-parent = <&PIC>; + }; + + + l) Marvell Discovery PIC (Programmable Interrupt Controller) nodes + + Represent the Discovery's PIC hardware + + Required properties: + - #interrupt-cells : <1> + - #address-cells : <0> + - compatible : "marvell,mv64360-pic" + - reg : Offset and length of the register set for this device + - interrupt-controller + + Example Discovery PIC node: + pic { + #interrupt-cells = <1>; + #address-cells = <0>; + compatible = "marvell,mv64360-pic"; + reg = <0x0 0x88>; + interrupt-controller; + }; + + + m) Marvell Discovery MPP (Multipurpose Pins) multiplexing nodes + + Represent the Discovery's MPP hardware + + Required properties: + - compatible : "marvell,mv64360-mpp" + - reg : Offset and length of the register set for this device + + Example Discovery MPP node: + mpp@f000 { + compatible = "marvell,mv64360-mpp"; + reg = <0xf000 0x10>; + }; + + + n) Marvell Discovery GPP (General Purpose Pins) nodes + + Represent the Discovery's GPP hardware + + Required properties: + - compatible : "marvell,mv64360-gpp" + - reg : Offset and length of the register set for this device + + Example Discovery GPP node: + gpp@f000 { + compatible = "marvell,mv64360-gpp"; + reg = <0xf100 0x20>; + }; + + + o) Marvell Discovery PCI host bridge node + + Represents the Discovery's PCI host bridge device. The properties + for this node conform to Rev 2.1 of the PCI Bus Binding to IEEE + 1275-1994. A typical value for the compatible property is + "marvell,mv64360-pci". + + Example Discovery PCI host bridge node + pci@80000000 { + #address-cells = <3>; + #size-cells = <2>; + #interrupt-cells = <1>; + device_type = "pci"; + compatible = "marvell,mv64360-pci"; + reg = <0xcf8 0x8>; + ranges = <0x01000000 0x0 0x0 + 0x88000000 0x0 0x01000000 + 0x02000000 0x0 0x80000000 + 0x80000000 0x0 0x08000000>; + bus-range = <0 255>; + clock-frequency = <66000000>; + interrupt-parent = <&PIC>; + interrupt-map-mask = <0xf800 0x0 0x0 0x7>; + interrupt-map = < + /* IDSEL 0x0a */ + 0x5000 0 0 1 &PIC 80 + 0x5000 0 0 2 &PIC 81 + 0x5000 0 0 3 &PIC 91 + 0x5000 0 0 4 &PIC 93 + + /* IDSEL 0x0b */ + 0x5800 0 0 1 &PIC 91 + 0x5800 0 0 2 &PIC 93 + 0x5800 0 0 3 &PIC 80 + 0x5800 0 0 4 &PIC 81 + + /* IDSEL 0x0c */ + 0x6000 0 0 1 &PIC 91 + 0x6000 0 0 2 &PIC 93 + 0x6000 0 0 3 &PIC 80 + 0x6000 0 0 4 &PIC 81 + + /* IDSEL 0x0d */ + 0x6800 0 0 1 &PIC 93 + 0x6800 0 0 2 &PIC 80 + 0x6800 0 0 3 &PIC 81 + 0x6800 0 0 4 &PIC 91 + >; + }; + + + p) Marvell Discovery CPU Error nodes + + Represent the Discovery's CPU error handler device. + + Required properties: + - compatible : "marvell,mv64360-cpu-error" + - reg : Offset and length of the register set for this device + - interrupts : the interrupt number for this device + - interrupt-parent : the phandle for the interrupt controller + that services interrupts for this device. + + Example Discovery CPU Error node: + cpu-error@0070 { + compatible = "marvell,mv64360-cpu-error"; + reg = <0x70 0x10 0x128 0x28>; + interrupts = <3>; + interrupt-parent = <&PIC>; + }; + + + q) Marvell Discovery SRAM Controller nodes + + Represent the Discovery's SRAM controller device. + + Required properties: + - compatible : "marvell,mv64360-sram-ctrl" + - reg : Offset and length of the register set for this device + - interrupts : the interrupt number for this device + - interrupt-parent : the phandle for the interrupt controller + that services interrupts for this device. + + Example Discovery SRAM Controller node: + sram-ctrl@0380 { + compatible = "marvell,mv64360-sram-ctrl"; + reg = <0x380 0x80>; + interrupts = <13>; + interrupt-parent = <&PIC>; + }; + + + r) Marvell Discovery PCI Error Handler nodes + + Represent the Discovery's PCI error handler device. + + Required properties: + - compatible : "marvell,mv64360-pci-error" + - reg : Offset and length of the register set for this device + - interrupts : the interrupt number for this device + - interrupt-parent : the phandle for the interrupt controller + that services interrupts for this device. + + Example Discovery PCI Error Handler node: + pci-error@1d40 { + compatible = "marvell,mv64360-pci-error"; + reg = <0x1d40 0x40 0xc28 0x4>; + interrupts = <12>; + interrupt-parent = <&PIC>; + }; + + + s) Marvell Discovery Memory Controller nodes + + Represent the Discovery's memory controller device. + + Required properties: + - compatible : "marvell,mv64360-mem-ctrl" + - reg : Offset and length of the register set for this device + - interrupts : the interrupt number for this device + - interrupt-parent : the phandle for the interrupt controller + that services interrupts for this device. + + Example Discovery Memory Controller node: + mem-ctrl@1400 { + compatible = "marvell,mv64360-mem-ctrl"; + reg = <0x1400 0x60>; + interrupts = <17>; + interrupt-parent = <&PIC>; + }; + + diff --git a/Documentation/powerpc/dts-bindings/phy.txt b/Documentation/powerpc/dts-bindings/phy.txt new file mode 100644 index 00000000000..bb8c742eb8c --- /dev/null +++ b/Documentation/powerpc/dts-bindings/phy.txt @@ -0,0 +1,25 @@ +PHY nodes + +Required properties: + + - device_type : Should be "ethernet-phy" + - interrupts : where a is the interrupt number and b is a + field that represents an encoding of the sense and level + information for the interrupt. This should be encoded based on + the information in section 2) depending on the type of interrupt + controller you have. + - interrupt-parent : the phandle for the interrupt controller that + services interrupts for this device. + - reg : The ID number for the phy, usually a small integer + - linux,phandle : phandle for this node; likely referenced by an + ethernet controller node. + +Example: + +ethernet-phy@0 { + linux,phandle = <2452000> + interrupt-parent = <40000>; + interrupts = <35 1>; + reg = <0>; + device_type = "ethernet-phy"; +}; diff --git a/Documentation/powerpc/dts-bindings/spi-bus.txt b/Documentation/powerpc/dts-bindings/spi-bus.txt new file mode 100644 index 00000000000..e782add2e45 --- /dev/null +++ b/Documentation/powerpc/dts-bindings/spi-bus.txt @@ -0,0 +1,57 @@ +SPI (Serial Peripheral Interface) busses + +SPI busses can be described with a node for the SPI master device +and a set of child nodes for each SPI slave on the bus. For this +discussion, it is assumed that the system's SPI controller is in +SPI master mode. This binding does not describe SPI controllers +in slave mode. + +The SPI master node requires the following properties: +- #address-cells - number of cells required to define a chip select + address on the SPI bus. +- #size-cells - should be zero. +- compatible - name of SPI bus controller following generic names + recommended practice. +No other properties are required in the SPI bus node. It is assumed +that a driver for an SPI bus device will understand that it is an SPI bus. +However, the binding does not attempt to define the specific method for +assigning chip select numbers. Since SPI chip select configuration is +flexible and non-standardized, it is left out of this binding with the +assumption that board specific platform code will be used to manage +chip selects. Individual drivers can define additional properties to +support describing the chip select layout. + +SPI slave nodes must be children of the SPI master node and can +contain the following properties. +- reg - (required) chip select address of device. +- compatible - (required) name of SPI device following generic names + recommended practice +- spi-max-frequency - (required) Maximum SPI clocking speed of device in Hz +- spi-cpol - (optional) Empty property indicating device requires + inverse clock polarity (CPOL) mode +- spi-cpha - (optional) Empty property indicating device requires + shifted clock phase (CPHA) mode +- spi-cs-high - (optional) Empty property indicating device requires + chip select active high + +SPI example for an MPC5200 SPI bus: + spi@f00 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "fsl,mpc5200b-spi","fsl,mpc5200-spi"; + reg = <0xf00 0x20>; + interrupts = <2 13 0 2 14 0>; + interrupt-parent = <&mpc5200_pic>; + + ethernet-switch@0 { + compatible = "micrel,ks8995m"; + spi-max-frequency = <1000000>; + reg = <0>; + }; + + codec@1 { + compatible = "ti,tlv320aic26"; + spi-max-frequency = <100000>; + reg = <1>; + }; + }; diff --git a/Documentation/powerpc/dts-bindings/usb-ehci.txt b/Documentation/powerpc/dts-bindings/usb-ehci.txt new file mode 100644 index 00000000000..fa18612f757 --- /dev/null +++ b/Documentation/powerpc/dts-bindings/usb-ehci.txt @@ -0,0 +1,25 @@ +USB EHCI controllers + +Required properties: + - compatible : should be "usb-ehci". + - reg : should contain at least address and length of the standard EHCI + register set for the device. Optional platform-dependent registers + (debug-port or other) can be also specified here, but only after + definition of standard EHCI registers. + - interrupts : one EHCI interrupt should be described here. +If device registers are implemented in big endian mode, the device +node should have "big-endian-regs" property. +If controller implementation operates with big endian descriptors, +"big-endian-desc" property should be specified. +If both big endian registers and descriptors are used by the controller +implementation, "big-endian" property can be specified instead of having +both "big-endian-regs" and "big-endian-desc". + +Example (Sequoia 440EPx): + ehci@e0000300 { + compatible = "ibm,usb-ehci-440epx", "usb-ehci"; + interrupt-parent = <&UIC0>; + interrupts = <1a 4>; + reg = <0 e0000300 90 0 e0000390 70>; + big-endian; + }; diff --git a/Documentation/powerpc/dts-bindings/xilinx.txt b/Documentation/powerpc/dts-bindings/xilinx.txt new file mode 100644 index 00000000000..80339fe4300 --- /dev/null +++ b/Documentation/powerpc/dts-bindings/xilinx.txt @@ -0,0 +1,295 @@ + d) Xilinx IP cores + + The Xilinx EDK toolchain ships with a set of IP cores (devices) for use + in Xilinx Spartan and Virtex FPGAs. The devices cover the whole range + of standard device types (network, serial, etc.) and miscellaneous + devices (gpio, LCD, spi, etc). Also, since these devices are + implemented within the fpga fabric every instance of the device can be + synthesised with different options that change the behaviour. + + Each IP-core has a set of parameters which the FPGA designer can use to + control how the core is synthesized. Historically, the EDK tool would + extract the device parameters relevant to device drivers and copy them + into an 'xparameters.h' in the form of #define symbols. This tells the + device drivers how the IP cores are configured, but it requres the kernel + to be recompiled every time the FPGA bitstream is resynthesized. + + The new approach is to export the parameters into the device tree and + generate a new device tree each time the FPGA bitstream changes. The + parameters which used to be exported as #defines will now become + properties of the device node. In general, device nodes for IP-cores + will take the following form: + + (name): (generic-name)@(base-address) { + compatible = "xlnx,(ip-core-name)-(HW_VER)" + [, (list of compatible devices), ...]; + reg = <(baseaddr) (size)>; + interrupt-parent = <&interrupt-controller-phandle>; + interrupts = < ... >; + xlnx,(parameter1) = "(string-value)"; + xlnx,(parameter2) = <(int-value)>; + }; + + (generic-name): an open firmware-style name that describes the + generic class of device. Preferably, this is one word, such + as 'serial' or 'ethernet'. + (ip-core-name): the name of the ip block (given after the BEGIN + directive in system.mhs). Should be in lowercase + and all underscores '_' converted to dashes '-'. + (name): is derived from the "PARAMETER INSTANCE" value. + (parameter#): C_* parameters from system.mhs. The C_ prefix is + dropped from the parameter name, the name is converted + to lowercase and all underscore '_' characters are + converted to dashes '-'. + (baseaddr): the baseaddr parameter value (often named C_BASEADDR). + (HW_VER): from the HW_VER parameter. + (size): the address range size (often C_HIGHADDR - C_BASEADDR + 1). + + Typically, the compatible list will include the exact IP core version + followed by an older IP core version which implements the same + interface or any other device with the same interface. + + 'reg', 'interrupt-parent' and 'interrupts' are all optional properties. + + For example, the following block from system.mhs: + + BEGIN opb_uartlite + PARAMETER INSTANCE = opb_uartlite_0 + PARAMETER HW_VER = 1.00.b + PARAMETER C_BAUDRATE = 115200 + PARAMETER C_DATA_BITS = 8 + PARAMETER C_ODD_PARITY = 0 + PARAMETER C_USE_PARITY = 0 + PARAMETER C_CLK_FREQ = 50000000 + PARAMETER C_BASEADDR = 0xEC100000 + PARAMETER C_HIGHADDR = 0xEC10FFFF + BUS_INTERFACE SOPB = opb_7 + PORT OPB_Clk = CLK_50MHz + PORT Interrupt = opb_uartlite_0_Interrupt + PORT RX = opb_uartlite_0_RX + PORT TX = opb_uartlite_0_TX + PORT OPB_Rst = sys_bus_reset_0 + END + + becomes the following device tree node: + + opb_uartlite_0: serial@ec100000 { + device_type = "serial"; + compatible = "xlnx,opb-uartlite-1.00.b"; + reg = ; + interrupt-parent = <&opb_intc_0>; + interrupts = <1 0>; // got this from the opb_intc parameters + current-speed = ; // standard serial device prop + clock-frequency = ; // standard serial device prop + xlnx,data-bits = <8>; + xlnx,odd-parity = <0>; + xlnx,use-parity = <0>; + }; + + Some IP cores actually implement 2 or more logical devices. In + this case, the device should still describe the whole IP core with + a single node and add a child node for each logical device. The + ranges property can be used to translate from parent IP-core to the + registers of each device. In addition, the parent node should be + compatible with the bus type 'xlnx,compound', and should contain + #address-cells and #size-cells, as with any other bus. (Note: this + makes the assumption that both logical devices have the same bus + binding. If this is not true, then separate nodes should be used + for each logical device). The 'cell-index' property can be used to + enumerate logical devices within an IP core. For example, the + following is the system.mhs entry for the dual ps2 controller found + on the ml403 reference design. + + BEGIN opb_ps2_dual_ref + PARAMETER INSTANCE = opb_ps2_dual_ref_0 + PARAMETER HW_VER = 1.00.a + PARAMETER C_BASEADDR = 0xA9000000 + PARAMETER C_HIGHADDR = 0xA9001FFF + BUS_INTERFACE SOPB = opb_v20_0 + PORT Sys_Intr1 = ps2_1_intr + PORT Sys_Intr2 = ps2_2_intr + PORT Clkin1 = ps2_clk_rx_1 + PORT Clkin2 = ps2_clk_rx_2 + PORT Clkpd1 = ps2_clk_tx_1 + PORT Clkpd2 = ps2_clk_tx_2 + PORT Rx1 = ps2_d_rx_1 + PORT Rx2 = ps2_d_rx_2 + PORT Txpd1 = ps2_d_tx_1 + PORT Txpd2 = ps2_d_tx_2 + END + + It would result in the following device tree nodes: + + opb_ps2_dual_ref_0: opb-ps2-dual-ref@a9000000 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "xlnx,compound"; + ranges = <0 a9000000 2000>; + // If this device had extra parameters, then they would + // go here. + ps2@0 { + compatible = "xlnx,opb-ps2-dual-ref-1.00.a"; + reg = <0 40>; + interrupt-parent = <&opb_intc_0>; + interrupts = <3 0>; + cell-index = <0>; + }; + ps2@1000 { + compatible = "xlnx,opb-ps2-dual-ref-1.00.a"; + reg = <1000 40>; + interrupt-parent = <&opb_intc_0>; + interrupts = <3 0>; + cell-index = <0>; + }; + }; + + Also, the system.mhs file defines bus attachments from the processor + to the devices. The device tree structure should reflect the bus + attachments. Again an example; this system.mhs fragment: + + BEGIN ppc405_virtex4 + PARAMETER INSTANCE = ppc405_0 + PARAMETER HW_VER = 1.01.a + BUS_INTERFACE DPLB = plb_v34_0 + BUS_INTERFACE IPLB = plb_v34_0 + END + + BEGIN opb_intc + PARAMETER INSTANCE = opb_intc_0 + PARAMETER HW_VER = 1.00.c + PARAMETER C_BASEADDR = 0xD1000FC0 + PARAMETER C_HIGHADDR = 0xD1000FDF + BUS_INTERFACE SOPB = opb_v20_0 + END + + BEGIN opb_uart16550 + PARAMETER INSTANCE = opb_uart16550_0 + PARAMETER HW_VER = 1.00.d + PARAMETER C_BASEADDR = 0xa0000000 + PARAMETER C_HIGHADDR = 0xa0001FFF + BUS_INTERFACE SOPB = opb_v20_0 + END + + BEGIN plb_v34 + PARAMETER INSTANCE = plb_v34_0 + PARAMETER HW_VER = 1.02.a + END + + BEGIN plb_bram_if_cntlr + PARAMETER INSTANCE = plb_bram_if_cntlr_0 + PARAMETER HW_VER = 1.00.b + PARAMETER C_BASEADDR = 0xFFFF0000 + PARAMETER C_HIGHADDR = 0xFFFFFFFF + BUS_INTERFACE SPLB = plb_v34_0 + END + + BEGIN plb2opb_bridge + PARAMETER INSTANCE = plb2opb_bridge_0 + PARAMETER HW_VER = 1.01.a + PARAMETER C_RNG0_BASEADDR = 0x20000000 + PARAMETER C_RNG0_HIGHADDR = 0x3FFFFFFF + PARAMETER C_RNG1_BASEADDR = 0x60000000 + PARAMETER C_RNG1_HIGHADDR = 0x7FFFFFFF + PARAMETER C_RNG2_BASEADDR = 0x80000000 + PARAMETER C_RNG2_HIGHADDR = 0xBFFFFFFF + PARAMETER C_RNG3_BASEADDR = 0xC0000000 + PARAMETER C_RNG3_HIGHADDR = 0xDFFFFFFF + BUS_INTERFACE SPLB = plb_v34_0 + BUS_INTERFACE MOPB = opb_v20_0 + END + + Gives this device tree (some properties removed for clarity): + + plb@0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "xlnx,plb-v34-1.02.a"; + device_type = "ibm,plb"; + ranges; // 1:1 translation + + plb_bram_if_cntrl_0: bram@ffff0000 { + reg = ; + } + + opb@20000000 { + #address-cells = <1>; + #size-cells = <1>; + ranges = <20000000 20000000 20000000 + 60000000 60000000 20000000 + 80000000 80000000 40000000 + c0000000 c0000000 20000000>; + + opb_uart16550_0: serial@a0000000 { + reg = ; + }; + + opb_intc_0: interrupt-controller@d1000fc0 { + reg = ; + }; + }; + }; + + That covers the general approach to binding xilinx IP cores into the + device tree. The following are bindings for specific devices: + + i) Xilinx ML300 Framebuffer + + Simple framebuffer device from the ML300 reference design (also on the + ML403 reference design as well as others). + + Optional properties: + - resolution = : pixel resolution of framebuffer. Some + implementations use a different resolution. + Default is + - virt-resolution = : Size of framebuffer in memory. + Default is . + - rotate-display (empty) : rotate display 180 degrees. + + ii) Xilinx SystemACE + + The Xilinx SystemACE device is used to program FPGAs from an FPGA + bitstream stored on a CF card. It can also be used as a generic CF + interface device. + + Optional properties: + - 8-bit (empty) : Set this property for SystemACE in 8 bit mode + + iii) Xilinx EMAC and Xilinx TEMAC + + Xilinx Ethernet devices. In addition to general xilinx properties + listed above, nodes for these devices should include a phy-handle + property, and may include other common network device properties + like local-mac-address. + + iv) Xilinx Uartlite + + Xilinx uartlite devices are simple fixed speed serial ports. + + Required properties: + - current-speed : Baud rate of uartlite + + v) Xilinx hwicap + + Xilinx hwicap devices provide access to the configuration logic + of the FPGA through the Internal Configuration Access Port + (ICAP). The ICAP enables partial reconfiguration of the FPGA, + readback of the configuration information, and some control over + 'warm boots' of the FPGA fabric. + + Required properties: + - xlnx,family : The family of the FPGA, necessary since the + capabilities of the underlying ICAP hardware + differ between different families. May be + 'virtex2p', 'virtex4', or 'virtex5'. + + vi) Xilinx Uart 16550 + + Xilinx UART 16550 devices are very similar to the NS16550 but with + different register spacing and an offset from the base address. + + Required properties: + - clock-frequency : Frequency of the clock input + - reg-offset : A value of 3 is required + - reg-shift : A value of 2 is required + + -- cgit v1.2.3 From 6cc7959f385abc77abdeda5462f96407a556265a Mon Sep 17 00:00:00 2001 From: Huang Weiyi Date: Sat, 20 Jun 2009 19:16:59 +0800 Subject: powerpc/85xx: remove duplicated #include Remove duplicated #include in arch/powerpc/platforms/85xx/xes_mpc85xx.c. Signed-off-by: Huang Weiyi Signed-off-by: Kumar Gala --- arch/powerpc/platforms/85xx/xes_mpc85xx.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/powerpc/platforms/85xx/xes_mpc85xx.c b/arch/powerpc/platforms/85xx/xes_mpc85xx.c index ee01532786e..1b426050a2f 100644 --- a/arch/powerpc/platforms/85xx/xes_mpc85xx.c +++ b/arch/powerpc/platforms/85xx/xes_mpc85xx.c @@ -32,7 +32,6 @@ #include #include -#include /* A few bit definitions needed for fixups on some boards */ #define MPC85xx_L2CTL_L2E 0x80000000 /* L2 enable */ -- cgit v1.2.3 From 66c6b856d8738278a4a6e558d25c90e9950aa112 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Fri, 19 Jun 2009 03:37:52 +0400 Subject: powerpc/85xx: Make eSDHC 1-bit only transfer mode default for MPC8569E-MDS For yet unknown reason 4-bit mode doesn't work on MPC8569E-MDS boards, so make 1-bit mode default. When we resolve the issue, u-boot will remove sdhci,1-bit-only property from the device tree, while SDHCI will still work with older u-boots. Signed-off-by: Anton Vorontsov Signed-off-by: Kumar Gala --- arch/powerpc/boot/dts/mpc8569mds.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/boot/dts/mpc8569mds.dts b/arch/powerpc/boot/dts/mpc8569mds.dts index a8dcb018c4a..a680165292f 100644 --- a/arch/powerpc/boot/dts/mpc8569mds.dts +++ b/arch/powerpc/boot/dts/mpc8569mds.dts @@ -253,6 +253,7 @@ /* Filled in by U-Boot */ clock-frequency = <0>; status = "disabled"; + sdhci,1-bit-only; }; crypto@30000 { -- cgit v1.2.3 From 503dcbeba50fd3545283594bc391b4a400fa6c48 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Tue, 23 Jun 2009 16:55:30 +0300 Subject: OMAP: Fix IOMEM macro for assembly Otherwise IOMEM calculations can fail. Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/include/mach/io.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/plat-omap/include/mach/io.h b/arch/arm/plat-omap/include/mach/io.h index 3b281472056..73f483d56ca 100644 --- a/arch/arm/plat-omap/include/mach/io.h +++ b/arch/arm/plat-omap/include/mach/io.h @@ -201,7 +201,7 @@ #define OMAP2_IO_ADDRESS(pa) IOMEM(__OMAP2_IO_ADDRESS(pa)) #ifdef __ASSEMBLER__ -#define IOMEM(x) x +#define IOMEM(x) (x) #else #define IOMEM(x) ((void __force __iomem *)(x)) -- cgit v1.2.3 From b0a28589b2fc9bee8ed83dee006a497d1ce93841 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 23 Jun 2009 16:39:53 +0200 Subject: perf report: Fix help text typo Reported-by: Brice Goglin Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo LKML-Reference: Signed-off-by: Ingo Molnar --- tools/perf/Documentation/perf-report.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt index 52d3fc6846a..40c1db83a16 100644 --- a/tools/perf/Documentation/perf-report.txt +++ b/tools/perf/Documentation/perf-report.txt @@ -13,7 +13,7 @@ SYNOPSIS DESCRIPTION ----------- This command displays the performance counter profile information recorded -via perf report. +via perf record. OPTIONS ------- -- cgit v1.2.3 From 927dbcd668ede8d2210cc59bea548ca9ff45b240 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Tue, 23 Jun 2009 16:15:38 +0100 Subject: [ARM] S3C24XX: Fix spi-bus configuration build errors The commit ec976d6eb021dc8f2994248c310a41540f4756bd removed a number of gpio definitions from but misssed updating these two files: Fix the following build errors by including : arch/arm/plat-s3c24xx/spi-bus1-gpg5_6_7.c: In function 's3c24xx_spi_gpiocfg_bus1_gpg5_6_7': arch/arm/plat-s3c24xx/spi-bus1-gpg5_6_7.c:25: error: implicit declaration of function 's3c2410_gpio_cfgpin' arch/arm/plat-s3c24xx/spi-bus1-gpg5_6_7.c:28: error: implicit declaration of function 's3c2410_gpio_pullup' arch/arm/plat-s3c24xx/spi-bus0-gpe11_12_13.c: In function 's3c24xx_spi_gpiocfg_bus0_gpe11_12_13': arch/arm/plat-s3c24xx/spi-bus0-gpe11_12_13.c:25: error: implicit declaration of function 's3c2410_gpio_cfgpin' arch/arm/plat-s3c24xx/spi-bus0-gpe11_12_13.c:28: error: implicit declaration of function 's3c2410_gpio_pullup' Signed-off-by: Ben Dooks Signed-off-by: Ben Dooks --- arch/arm/plat-s3c24xx/spi-bus0-gpe11_12_13.c | 3 +-- arch/arm/plat-s3c24xx/spi-bus1-gpg5_6_7.c | 3 +-- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/arm/plat-s3c24xx/spi-bus0-gpe11_12_13.c b/arch/arm/plat-s3c24xx/spi-bus0-gpe11_12_13.c index 9edf7894eed..da7a61728c1 100644 --- a/arch/arm/plat-s3c24xx/spi-bus0-gpe11_12_13.c +++ b/arch/arm/plat-s3c24xx/spi-bus0-gpe11_12_13.c @@ -12,8 +12,7 @@ */ #include - -#include +#include #include #include diff --git a/arch/arm/plat-s3c24xx/spi-bus1-gpg5_6_7.c b/arch/arm/plat-s3c24xx/spi-bus1-gpg5_6_7.c index f34d0fc69ad..86b9edc6741 100644 --- a/arch/arm/plat-s3c24xx/spi-bus1-gpg5_6_7.c +++ b/arch/arm/plat-s3c24xx/spi-bus1-gpg5_6_7.c @@ -12,8 +12,7 @@ */ #include - -#include +#include #include #include -- cgit v1.2.3 From ffd14417bdf2a1650bcb16d37c7e658535d1681a Mon Sep 17 00:00:00 2001 From: Huang Weiyi Date: Tue, 23 Jun 2009 20:58:57 +0800 Subject: [ARM] MINI2440: remove duplicated #include Remove duplicated #include('s) in arch/arm/mach-s3c2440/mach-mini2440.c Signed-off-by: Huang Weiyi Signed-off-by: Ben Dooks --- arch/arm/mach-s3c2440/mach-mini2440.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/arm/mach-s3c2440/mach-mini2440.c b/arch/arm/mach-s3c2440/mach-mini2440.c index 6a5bc3021bd..e714bfabbc0 100644 --- a/arch/arm/mach-s3c2440/mach-mini2440.c +++ b/arch/arm/mach-s3c2440/mach-mini2440.c @@ -48,8 +48,6 @@ #include #include -#include - #include #include #include -- cgit v1.2.3 From a3c79901170aba0d3717c2602326bab639eb1344 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Tue, 23 Jun 2009 16:30:02 +0100 Subject: [ARM] S3C24XX: Fix missing s3c_iis_device. Commit 52da219e9664e537a745877b0efa7cf2b1ff2996 removed the s3c_device_iis, but didn't replace it with anything so a number of s3c24xx machines are currently failing to build. As a temporary fix, re-instate s3c_device_iis until a proper replacement can be done for it. Signed-off-by: Ben Dooks --- arch/arm/plat-s3c/include/plat/devs.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/plat-s3c/include/plat/devs.h b/arch/arm/plat-s3c/include/plat/devs.h index b5b9c4d46e9..2e170827e0b 100644 --- a/arch/arm/plat-s3c/include/plat/devs.h +++ b/arch/arm/plat-s3c/include/plat/devs.h @@ -37,6 +37,7 @@ extern struct platform_device s3c_device_i2c1; extern struct platform_device s3c_device_rtc; extern struct platform_device s3c_device_adc; extern struct platform_device s3c_device_sdi; +extern struct platform_device s3c_device_iis; extern struct platform_device s3c_device_hwmon; extern struct platform_device s3c_device_hsmmc0; extern struct platform_device s3c_device_hsmmc1; -- cgit v1.2.3 From b647712f669f4fadf428a14ab45ab4c03558cdf5 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Tue, 23 Jun 2009 16:34:35 +0100 Subject: [ARM] S3C: Fix S3C24XX build to not include s3c64xx IIS devices Commit 52da219e9664e537a745877b0efa7cf2b1ff2996 added IIS platform devices, but these do not build on s3c24xx systems and the file depends on SND_S3C24XX_SOC, which is selected for all S3C64XX/S3C24XX systems. As a quick fix, make the dev-audio.o file depends on SND_S3C64XX_SOC_I2S instead. Signed-off-by: Ben Dooks --- arch/arm/plat-s3c/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/plat-s3c/Makefile b/arch/arm/plat-s3c/Makefile index 74bb7cb5da4..0761766b183 100644 --- a/arch/arm/plat-s3c/Makefile +++ b/arch/arm/plat-s3c/Makefile @@ -34,7 +34,7 @@ obj-$(CONFIG_S3C_DEV_HSMMC) += dev-hsmmc.o obj-$(CONFIG_S3C_DEV_HSMMC1) += dev-hsmmc1.o obj-y += dev-i2c0.o obj-$(CONFIG_S3C_DEV_I2C1) += dev-i2c1.o -obj-$(CONFIG_SND_S3C24XX_SOC) += dev-audio.o +obj-$(CONFIG_SND_S3C64XX_SOC_I2S) += dev-audio.o obj-$(CONFIG_S3C_DEV_FB) += dev-fb.o obj-$(CONFIG_S3C_DEV_USB_HOST) += dev-usb.o obj-$(CONFIG_S3C_DEV_USB_HSOTG) += dev-usb-hsotg.o -- cgit v1.2.3 From b5aa8a0fc132dd512c33e7c2621d075e3b77a65e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Gr=C3=A9goire=20Henry?= Date: Tue, 23 Jun 2009 15:41:02 +0200 Subject: drm/i915: initialize fence registers to zero when loading GEM MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Unitialized fence register could leads to corrupted display. Problem encountered on MacBooks (revision 1 and 2), directly booting from EFI or through BIOS emulation. (bug #21710 at freedestop.org) Signed-off-by: Grégoire Henry Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_gem.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 8660b2144b2..876b65cb762 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -4227,6 +4227,7 @@ i915_gem_lastclose(struct drm_device *dev) void i915_gem_load(struct drm_device *dev) { + int i; drm_i915_private_t *dev_priv = dev->dev_private; spin_lock_init(&dev_priv->mm.active_list_lock); @@ -4246,6 +4247,18 @@ i915_gem_load(struct drm_device *dev) else dev_priv->num_fence_regs = 8; + /* Initialize fence registers to zero */ + if (IS_I965G(dev)) { + for (i = 0; i < 16; i++) + I915_WRITE64(FENCE_REG_965_0 + (i * 8), 0); + } else { + for (i = 0; i < 8; i++) + I915_WRITE(FENCE_REG_830_0 + (i * 4), 0); + if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) + for (i = 0; i < 8; i++) + I915_WRITE(FENCE_REG_945_8 + (i * 4), 0); + } + i915_gem_detect_bit_6_swizzle(dev); } -- cgit v1.2.3 From 622a8f5f7bf160507861cf05309020049f42976d Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Tue, 23 Jun 2009 18:20:10 +0100 Subject: [ARM] s3c2410_defconfig: add MINI2440 machine to build Add the MINI2440 to the list of machines built by the central defconfig. Signed-off-by: Ben Dooks --- arch/arm/configs/s3c2410_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/configs/s3c2410_defconfig b/arch/arm/configs/s3c2410_defconfig index f4f1899f3c8..b49810461e4 100644 --- a/arch/arm/configs/s3c2410_defconfig +++ b/arch/arm/configs/s3c2410_defconfig @@ -260,6 +260,7 @@ CONFIG_MACH_NEXCODER_2440=y CONFIG_SMDK2440_CPU2440=y CONFIG_MACH_AT2440EVB=y CONFIG_CPU_S3C2442=y +CONFIG_MACH_MINI2440=y # # S3C2442 Machines -- cgit v1.2.3 From 51af243c631d9d03376d1454a24cf0a96e6f17cb Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Tue, 23 Jun 2009 18:23:27 +0100 Subject: [ARM] MINI2440: Add missing flash_bbt flat to NAND The commit 9db41f9edcb87ae050fcb171c44be7f212728d54 added the .flash_bbt flag to the nand set, so add this back into the mach-mini2440.c file (taken out on initial commit to allow build). Signed-off-by: Ben Dooks --- arch/arm/mach-s3c2440/mach-mini2440.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-s3c2440/mach-mini2440.c b/arch/arm/mach-s3c2440/mach-mini2440.c index e714bfabbc0..ec71a696578 100644 --- a/arch/arm/mach-s3c2440/mach-mini2440.c +++ b/arch/arm/mach-s3c2440/mach-mini2440.c @@ -273,6 +273,7 @@ static struct s3c2410_nand_set mini2440_nand_sets[] __initdata = { .nr_chips = 1, .nr_partitions = ARRAY_SIZE(mini2440_default_nand_part), .partitions = mini2440_default_nand_part, + .flash_bbt = 1, /* we use u-boot to create a BBT */ }, }; -- cgit v1.2.3 From b8389018212e8c4e03ede4df5405796100ef4390 Mon Sep 17 00:00:00 2001 From: Kim Kyuwon Date: Wed, 10 Jun 2009 12:48:48 -0700 Subject: leds: fix led-bd2802 errors while resuming LED_CORE_SUSPENDRESUME flag is not needed in the bd2802 driver, because all works for suspend/resume is done in bd2802_suspend and bd2802_suspend functions. And this patch allows bd2802 to be configured again when it resumes from suspend. Signed-off-by: Kim Kyuwon Signed-off-by: Andrew Morton Signed-off-by: Richard Purdie --- drivers/leds/leds-bd2802.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/drivers/leds/leds-bd2802.c b/drivers/leds/leds-bd2802.c index 4149ecb3a9b..6832b9fd042 100644 --- a/drivers/leds/leds-bd2802.c +++ b/drivers/leds/leds-bd2802.c @@ -538,7 +538,6 @@ static int bd2802_register_led_classdev(struct bd2802_led *led) led->cdev_led1r.brightness = LED_OFF; led->cdev_led1r.brightness_set = bd2802_set_led1r_brightness; led->cdev_led1r.blink_set = bd2802_set_led1r_blink; - led->cdev_led1r.flags |= LED_CORE_SUSPENDRESUME; ret = led_classdev_register(&led->client->dev, &led->cdev_led1r); if (ret < 0) { @@ -551,7 +550,6 @@ static int bd2802_register_led_classdev(struct bd2802_led *led) led->cdev_led1g.brightness = LED_OFF; led->cdev_led1g.brightness_set = bd2802_set_led1g_brightness; led->cdev_led1g.blink_set = bd2802_set_led1g_blink; - led->cdev_led1g.flags |= LED_CORE_SUSPENDRESUME; ret = led_classdev_register(&led->client->dev, &led->cdev_led1g); if (ret < 0) { @@ -564,7 +562,6 @@ static int bd2802_register_led_classdev(struct bd2802_led *led) led->cdev_led1b.brightness = LED_OFF; led->cdev_led1b.brightness_set = bd2802_set_led1b_brightness; led->cdev_led1b.blink_set = bd2802_set_led1b_blink; - led->cdev_led1b.flags |= LED_CORE_SUSPENDRESUME; ret = led_classdev_register(&led->client->dev, &led->cdev_led1b); if (ret < 0) { @@ -577,7 +574,6 @@ static int bd2802_register_led_classdev(struct bd2802_led *led) led->cdev_led2r.brightness = LED_OFF; led->cdev_led2r.brightness_set = bd2802_set_led2r_brightness; led->cdev_led2r.blink_set = bd2802_set_led2r_blink; - led->cdev_led2r.flags |= LED_CORE_SUSPENDRESUME; ret = led_classdev_register(&led->client->dev, &led->cdev_led2r); if (ret < 0) { @@ -590,7 +586,6 @@ static int bd2802_register_led_classdev(struct bd2802_led *led) led->cdev_led2g.brightness = LED_OFF; led->cdev_led2g.brightness_set = bd2802_set_led2g_brightness; led->cdev_led2g.blink_set = bd2802_set_led2g_blink; - led->cdev_led2g.flags |= LED_CORE_SUSPENDRESUME; ret = led_classdev_register(&led->client->dev, &led->cdev_led2g); if (ret < 0) { @@ -723,8 +718,7 @@ static int bd2802_resume(struct i2c_client *client) struct bd2802_led *led = i2c_get_clientdata(client); if (!bd2802_is_all_off(led) || led->adf_on) { - gpio_set_value(led->pdata->reset_gpio, 1); - udelay(100); + bd2802_reset_cancel(led); bd2802_restore_state(led); } -- cgit v1.2.3 From 1b18cf413f63ff6de5ba3e5028e869c21322a4df Mon Sep 17 00:00:00 2001 From: Kim Kyuwon Date: Wed, 10 Jun 2009 12:48:50 -0700 Subject: leds: change the license information Change the license to 'GPL v2' Signed-off-by: Kim Kyuwon Signed-off-by: Andrew Morton Signed-off-by: Richard Purdie --- drivers/leds/leds-bd2802.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/leds/leds-bd2802.c b/drivers/leds/leds-bd2802.c index 6832b9fd042..7a03efd54f6 100644 --- a/drivers/leds/leds-bd2802.c +++ b/drivers/leds/leds-bd2802.c @@ -756,4 +756,4 @@ module_exit(bd2802_exit); MODULE_AUTHOR("Kim Kyuwon "); MODULE_DESCRIPTION("BD2802 LED driver"); -MODULE_LICENSE("GPL"); +MODULE_LICENSE("GPL v2"); -- cgit v1.2.3 From 8792f7cf4368f9bc337eee65851d8e7abbbf946c Mon Sep 17 00:00:00 2001 From: Kim Kyuwon Date: Wed, 10 Jun 2009 12:48:50 -0700 Subject: leds: add the sysfs interface into the leds-bd2802 driver for changing wave pattern and led current. Allow the user application to change the wave pattern and led current by 'wave_pattern' and 'rgb_current' sysfs files. Signed-off-by: Kim Kyuwon Signed-off-by: Andrew Morton Signed-off-by: Richard Purdie --- drivers/leds/leds-bd2802.c | 86 +++++++++++++++++++++++++++++++++++++++------- 1 file changed, 73 insertions(+), 13 deletions(-) diff --git a/drivers/leds/leds-bd2802.c b/drivers/leds/leds-bd2802.c index 7a03efd54f6..779d7f262c0 100644 --- a/drivers/leds/leds-bd2802.c +++ b/drivers/leds/leds-bd2802.c @@ -97,6 +97,10 @@ struct bd2802_led { enum led_ids led_id; enum led_colors color; enum led_bits state; + + /* General attributes of RGB LEDs */ + int wave_pattern; + int rgb_current; }; @@ -254,7 +258,7 @@ static void bd2802_set_on(struct bd2802_led *led, enum led_ids id, bd2802_reset_cancel(led); reg = bd2802_get_reg_addr(id, color, BD2802_REG_CURRENT1SETUP); - bd2802_write_byte(led->client, reg, BD2802_CURRENT_032); + bd2802_write_byte(led->client, reg, led->rgb_current); reg = bd2802_get_reg_addr(id, color, BD2802_REG_CURRENT2SETUP); bd2802_write_byte(led->client, reg, BD2802_CURRENT_000); reg = bd2802_get_reg_addr(id, color, BD2802_REG_WAVEPATTERN); @@ -275,9 +279,9 @@ static void bd2802_set_blink(struct bd2802_led *led, enum led_ids id, reg = bd2802_get_reg_addr(id, color, BD2802_REG_CURRENT1SETUP); bd2802_write_byte(led->client, reg, BD2802_CURRENT_000); reg = bd2802_get_reg_addr(id, color, BD2802_REG_CURRENT2SETUP); - bd2802_write_byte(led->client, reg, BD2802_CURRENT_032); + bd2802_write_byte(led->client, reg, led->rgb_current); reg = bd2802_get_reg_addr(id, color, BD2802_REG_WAVEPATTERN); - bd2802_write_byte(led->client, reg, BD2802_PATTERN_HALF); + bd2802_write_byte(led->client, reg, led->wave_pattern); bd2802_enable(led, id); bd2802_update_state(led, id, color, BD2802_BLINK); @@ -406,7 +410,7 @@ static void bd2802_enable_adv_conf(struct bd2802_led *led) ret = device_create_file(&led->client->dev, bd2802_addr_attributes[i]); if (ret) { - dev_err(&led->client->dev, "failed to sysfs file %s\n", + dev_err(&led->client->dev, "failed: sysfs file %s\n", bd2802_addr_attributes[i]->attr.name); goto failed_remove_files; } @@ -483,6 +487,52 @@ static struct device_attribute bd2802_adv_conf_attr = { .store = bd2802_store_adv_conf, }; +#define BD2802_CONTROL_ATTR(attr_name, name_str) \ +static ssize_t bd2802_show_##attr_name(struct device *dev, \ + struct device_attribute *attr, char *buf) \ +{ \ + struct bd2802_led *led = i2c_get_clientdata(to_i2c_client(dev));\ + ssize_t ret; \ + down_read(&led->rwsem); \ + ret = sprintf(buf, "0x%02x\n", led->attr_name); \ + up_read(&led->rwsem); \ + return ret; \ +} \ +static ssize_t bd2802_store_##attr_name(struct device *dev, \ + struct device_attribute *attr, const char *buf, size_t count) \ +{ \ + struct bd2802_led *led = i2c_get_clientdata(to_i2c_client(dev));\ + unsigned long val; \ + int ret; \ + if (!count) \ + return -EINVAL; \ + ret = strict_strtoul(buf, 16, &val); \ + if (ret) \ + return ret; \ + down_write(&led->rwsem); \ + led->attr_name = val; \ + up_write(&led->rwsem); \ + return count; \ +} \ +static struct device_attribute bd2802_##attr_name##_attr = { \ + .attr = { \ + .name = name_str, \ + .mode = 0644, \ + .owner = THIS_MODULE \ + }, \ + .show = bd2802_show_##attr_name, \ + .store = bd2802_store_##attr_name, \ +}; + +BD2802_CONTROL_ATTR(wave_pattern, "wave_pattern"); +BD2802_CONTROL_ATTR(rgb_current, "rgb_current"); + +static struct device_attribute *bd2802_attributes[] = { + &bd2802_adv_conf_attr, + &bd2802_wave_pattern_attr, + &bd2802_rgb_current_attr, +}; + static void bd2802_led_work(struct work_struct *work) { struct bd2802_led *led = container_of(work, struct bd2802_led, work); @@ -635,7 +685,7 @@ static int __devinit bd2802_probe(struct i2c_client *client, { struct bd2802_led *led; struct bd2802_led_platform_data *pdata; - int ret; + int ret, i; led = kzalloc(sizeof(struct bd2802_led), GFP_KERNEL); if (!led) { @@ -665,13 +715,20 @@ static int __devinit bd2802_probe(struct i2c_client *client, /* To save the power, reset BD2802 after detecting */ gpio_set_value(led->pdata->reset_gpio, 0); + /* Default attributes */ + led->wave_pattern = BD2802_PATTERN_HALF; + led->rgb_current = BD2802_CURRENT_032; + init_rwsem(&led->rwsem); - ret = device_create_file(&client->dev, &bd2802_adv_conf_attr); - if (ret) { - dev_err(&client->dev, "failed to create sysfs file %s\n", - bd2802_adv_conf_attr.attr.name); - goto failed_free; + for (i = 0; i < ARRAY_SIZE(bd2802_attributes); i++) { + ret = device_create_file(&led->client->dev, + bd2802_attributes[i]); + if (ret) { + dev_err(&led->client->dev, "failed: sysfs file %s\n", + bd2802_attributes[i]->attr.name); + goto failed_unregister_dev_file; + } } ret = bd2802_register_led_classdev(led); @@ -681,7 +738,8 @@ static int __devinit bd2802_probe(struct i2c_client *client, return 0; failed_unregister_dev_file: - device_remove_file(&client->dev, &bd2802_adv_conf_attr); + for (i--; i >= 0; i--) + device_remove_file(&led->client->dev, bd2802_attributes[i]); failed_free: i2c_set_clientdata(client, NULL); kfree(led); @@ -692,12 +750,14 @@ failed_free: static int __exit bd2802_remove(struct i2c_client *client) { struct bd2802_led *led = i2c_get_clientdata(client); + int i; - bd2802_unregister_led_classdev(led); gpio_set_value(led->pdata->reset_gpio, 0); + bd2802_unregister_led_classdev(led); if (led->adf_on) bd2802_disable_adv_conf(led); - device_remove_file(&client->dev, &bd2802_adv_conf_attr); + for (i = 0; i < ARRAY_SIZE(bd2802_attributes); i++) + device_remove_file(&led->client->dev, bd2802_attributes[i]); i2c_set_clientdata(client, NULL); kfree(led); -- cgit v1.2.3 From 7fd02170e25b3b60fc21cd7b64bf1ed42e6a7cbe Mon Sep 17 00:00:00 2001 From: Zhenwen Xu Date: Wed, 10 Jun 2009 12:48:51 -0700 Subject: leds: leds-gpio - fix a section mismatch WARNING: drivers/leds/leds-gpio.o(.text+0x153): Section mismatch in reference from the function gpio_led_probe() to the function .devinit.text:create_gpio_led() The function gpio_led_probe() references the function __devinit create_gpio_led(). This is often because gpio_led_probe lacks a __devinit annotation or the annotation of create_gpio_led is wrong. Signed-off-by: Zhenwen Xu Signed-off-by: Andrew Morton Signed-off-by: Richard Purdie --- drivers/leds/leds-gpio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c index d2109054de8..76895e69104 100644 --- a/drivers/leds/leds-gpio.c +++ b/drivers/leds/leds-gpio.c @@ -129,7 +129,7 @@ static void delete_gpio_led(struct gpio_led_data *led) } #ifdef CONFIG_LEDS_GPIO_PLATFORM -static int gpio_led_probe(struct platform_device *pdev) +static int __devinit gpio_led_probe(struct platform_device *pdev) { struct gpio_led_platform_data *pdata = pdev->dev.platform_data; struct gpio_led_data *leds_data; -- cgit v1.2.3 From 2216c6e83ccbc9d34f541621ff23f510cd8a256f Mon Sep 17 00:00:00 2001 From: Tobias Mueller Date: Wed, 10 Jun 2009 12:48:52 -0700 Subject: leds: alix-leds2 fixed for Award BIOS Add initialisation of GPIO ports for compatibility with boards with Award BIOS (e.g. ALIX.3D3). Signed-off-by: Tobias Mueller Reviewed-by: Constantin Baranov Signed-off-by: Andrew Morton Signed-off-by: Richard Purdie --- drivers/leds/Kconfig | 1 + drivers/leds/leds-alix2.c | 7 ++++++- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index 9b60b6b684d..37e91184756 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -75,6 +75,7 @@ config LEDS_ALIX2 depends on LEDS_CLASS && X86 && EXPERIMENTAL help This option enables support for the PCEngines ALIX.2 and ALIX.3 LEDs. + You have to set leds-alix2.force=1 for boards with Award BIOS. config LEDS_H1940 tristate "LED Support for iPAQ H1940 device" diff --git a/drivers/leds/leds-alix2.c b/drivers/leds/leds-alix2.c index ddbd7730dfc..731d4eef342 100644 --- a/drivers/leds/leds-alix2.c +++ b/drivers/leds/leds-alix2.c @@ -14,7 +14,7 @@ static int force = 0; module_param(force, bool, 0444); -MODULE_PARM_DESC(force, "Assume system has ALIX.2 style LEDs"); +MODULE_PARM_DESC(force, "Assume system has ALIX.2/ALIX.3 style LEDs"); struct alix_led { struct led_classdev cdev; @@ -155,6 +155,11 @@ static int __init alix_led_init(void) goto out; } + /* enable output on GPIO for LED 1,2,3 */ + outl(1 << 6, 0x6104); + outl(1 << 9, 0x6184); + outl(1 << 11, 0x6184); + pdev = platform_device_register_simple(KBUILD_MODNAME, -1, NULL, 0); if (!IS_ERR(pdev)) { ret = platform_driver_probe(&alix_led_driver, alix_led_probe); -- cgit v1.2.3 From 92722b1bb1ebcba767f9c6ee499992ee33367268 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 11 Jun 2009 14:17:48 +0100 Subject: leds: Further document parameters for blink_set() The documentation for the parameters of blink_set() was a bit hard to find so put some where I'd expected to find it. Signed-off-by: Mark Brown Signed-off-by: Richard Purdie --- include/linux/leds.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/include/linux/leds.h b/include/linux/leds.h index 376fe07732e..c7f0b148df0 100644 --- a/include/linux/leds.h +++ b/include/linux/leds.h @@ -45,7 +45,9 @@ struct led_classdev { /* Get LED brightness level */ enum led_brightness (*brightness_get)(struct led_classdev *led_cdev); - /* Activate hardware accelerated blink */ + /* Activate hardware accelerated blink, delays are in + * miliseconds and if none is provided then a sensible default + * should be chosen. */ int (*blink_set)(struct led_classdev *led_cdev, unsigned long *delay_on, unsigned long *delay_off); -- cgit v1.2.3 From 34abdf252699ebc549fad54c1db481612f22a826 Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Wed, 17 Jun 2009 13:05:27 +0100 Subject: leds: Remove an orphan Kconfig entry Remove an orphan Kconfig entry (LEDS_LP5521) Signed-off-by: Richard Purdie --- drivers/leds/Kconfig | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index 37e91184756..cfcd6bf831c 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -146,16 +146,6 @@ config LEDS_GPIO_OF of_platform devices. For instance, LEDs which are listed in a "dts" file. -config LEDS_LP5521 - tristate "LED Support for the LP5521 LEDs" - depends on LEDS_CLASS && I2C - help - If you say 'Y' here you get support for the National Semiconductor - LP5521 LED driver used in n8x0 boards. - - This driver can be built as a module by choosing 'M'. The module - will be called leds-lp5521. - config LEDS_CLEVO_MAIL tristate "Mail LED on Clevo notebook" depends on LEDS_CLASS && X86 && SERIO_I8042 && DMI -- cgit v1.2.3 From 07172d2bfa339d6c150d8cdd7c02128177feffbb Mon Sep 17 00:00:00 2001 From: Antonio Ospite Date: Fri, 19 Jun 2009 13:53:07 +0200 Subject: leds: pca9532 - Indent using tabs, not spaces. Indent using tabs, not spaces. Signed-off-by: Antonio Ospite Acked-by: Riku Voipio Signed-off-by: Richard Purdie --- drivers/leds/leds-pca9532.c | 58 ++++++++++++++++++++++----------------------- 1 file changed, 29 insertions(+), 29 deletions(-) diff --git a/drivers/leds/leds-pca9532.c b/drivers/leds/leds-pca9532.c index 3937244fdca..dba8921240f 100644 --- a/drivers/leds/leds-pca9532.c +++ b/drivers/leds/leds-pca9532.c @@ -35,7 +35,7 @@ struct pca9532_data { struct pca9532_led leds[16]; struct mutex update_lock; struct input_dev *idev; - struct work_struct work; + struct work_struct work; u8 pwm[2]; u8 psc[2]; }; @@ -87,14 +87,14 @@ static int pca9532_calcpwm(struct i2c_client *client, int pwm, int blink, if (b > 0xFF) return -EINVAL; data->pwm[pwm] = b; - data->psc[pwm] = blink; - return 0; + data->psc[pwm] = blink; + return 0; } static int pca9532_setpwm(struct i2c_client *client, int pwm) { - struct pca9532_data *data = i2c_get_clientdata(client); - mutex_lock(&data->update_lock); + struct pca9532_data *data = i2c_get_clientdata(client); + mutex_lock(&data->update_lock); i2c_smbus_write_byte_data(client, PCA9532_REG_PWM(pwm), data->pwm[pwm]); i2c_smbus_write_byte_data(client, PCA9532_REG_PSC(pwm), @@ -132,11 +132,11 @@ static void pca9532_set_brightness(struct led_classdev *led_cdev, led->state = PCA9532_ON; else { led->state = PCA9532_PWM0; /* Thecus: hardcode one pwm */ - err = pca9532_calcpwm(led->client, 0, 0, value); + err = pca9532_calcpwm(led->client, 0, 0, value); if (err) return; /* XXX: led api doesn't allow error code? */ } - schedule_work(&led->work); + schedule_work(&led->work); } static int pca9532_set_blink(struct led_classdev *led_cdev, @@ -145,7 +145,7 @@ static int pca9532_set_blink(struct led_classdev *led_cdev, struct pca9532_led *led = ldev_to_led(led_cdev); struct i2c_client *client = led->client; int psc; - int err = 0; + int err = 0; if (*delay_on == 0 && *delay_off == 0) { /* led subsystem ask us for a blink rate */ @@ -157,11 +157,11 @@ static int pca9532_set_blink(struct led_classdev *led_cdev, /* Thecus specific: only use PSC/PWM 0 */ psc = (*delay_on * 152-1)/1000; - err = pca9532_calcpwm(client, 0, psc, led_cdev->brightness); - if (err) - return err; - schedule_work(&led->work); - return 0; + err = pca9532_calcpwm(client, 0, psc, led_cdev->brightness); + if (err) + return err; + schedule_work(&led->work); + return 0; } static int pca9532_event(struct input_dev *dev, unsigned int type, @@ -178,15 +178,15 @@ static int pca9532_event(struct input_dev *dev, unsigned int type, else data->pwm[1] = 0; - schedule_work(&data->work); + schedule_work(&data->work); - return 0; + return 0; } static void pca9532_input_work(struct work_struct *work) { - struct pca9532_data *data; - data = container_of(work, struct pca9532_data, work); + struct pca9532_data *data; + data = container_of(work, struct pca9532_data, work); mutex_lock(&data->update_lock); i2c_smbus_write_byte_data(data->client, PCA9532_REG_PWM(1), data->pwm[1]); @@ -195,11 +195,11 @@ static void pca9532_input_work(struct work_struct *work) static void pca9532_led_work(struct work_struct *work) { - struct pca9532_led *led; - led = container_of(work, struct pca9532_led, work); - if (led->state == PCA9532_PWM0) - pca9532_setpwm(led->client, 0); - pca9532_setled(led); + struct pca9532_led *led; + led = container_of(work, struct pca9532_led, work); + if (led->state == PCA9532_PWM0) + pca9532_setpwm(led->client, 0); + pca9532_setled(led); } static int pca9532_configure(struct i2c_client *client, @@ -232,7 +232,7 @@ static int pca9532_configure(struct i2c_client *client, led->ldev.brightness = LED_OFF; led->ldev.brightness_set = pca9532_set_brightness; led->ldev.blink_set = pca9532_set_blink; - INIT_WORK(&led->work, pca9532_led_work); + INIT_WORK(&led->work, pca9532_led_work); err = led_classdev_register(&client->dev, &led->ldev); if (err < 0) { dev_err(&client->dev, @@ -262,11 +262,11 @@ static int pca9532_configure(struct i2c_client *client, BIT_MASK(SND_TONE); data->idev->event = pca9532_event; input_set_drvdata(data->idev, data); - INIT_WORK(&data->work, pca9532_input_work); + INIT_WORK(&data->work, pca9532_input_work); err = input_register_device(data->idev); if (err) { input_free_device(data->idev); - cancel_work_sync(&data->work); + cancel_work_sync(&data->work); data->idev = NULL; goto exit; } @@ -283,13 +283,13 @@ exit: break; case PCA9532_TYPE_LED: led_classdev_unregister(&data->leds[i].ldev); - cancel_work_sync(&data->leds[i].work); + cancel_work_sync(&data->leds[i].work); break; case PCA9532_TYPE_N2100_BEEP: if (data->idev != NULL) { input_unregister_device(data->idev); input_free_device(data->idev); - cancel_work_sync(&data->work); + cancel_work_sync(&data->work); data->idev = NULL; } break; @@ -340,13 +340,13 @@ static int pca9532_remove(struct i2c_client *client) break; case PCA9532_TYPE_LED: led_classdev_unregister(&data->leds[i].ldev); - cancel_work_sync(&data->leds[i].work); + cancel_work_sync(&data->leds[i].work); break; case PCA9532_TYPE_N2100_BEEP: if (data->idev != NULL) { input_unregister_device(data->idev); input_free_device(data->idev); - cancel_work_sync(&data->work); + cancel_work_sync(&data->work); data->idev = NULL; } break; -- cgit v1.2.3 From 5054d39e327f76df022163a2ebd02e444c5d65f9 Mon Sep 17 00:00:00 2001 From: Antonio Ospite Date: Fri, 19 Jun 2009 13:55:42 +0200 Subject: leds: LED driver for National Semiconductor LP3944 Funlight Chip LEDs driver for National Semiconductor LP3944 Funlight Chip http://www.national.com/pf/LP/LP3944.html This helper chip can drive up to 8 leds, with two programmable DIM modes; it could even be used as a gpio expander but this driver assumes it is used as a led controller. The DIM modes are used to set _blink_ patterns for leds, the pattern is specified supplying two parameters: - period: from 0s to 1.6s - duty cycle: percentage of the period the led is on, from 0 to 100 LP3944 can be found on Motorola A910 smartphone, where it drives the rgb leds, the camera flash light and the displays backlights. Signed-off-by: Antonio Ospite Signed-off-by: Richard Purdie --- Documentation/leds-lp3944.txt | 50 +++++ drivers/leds/Kconfig | 11 + drivers/leds/Makefile | 1 + drivers/leds/leds-lp3944.c | 466 ++++++++++++++++++++++++++++++++++++++++++ include/linux/leds-lp3944.h | 53 +++++ 5 files changed, 581 insertions(+) create mode 100644 Documentation/leds-lp3944.txt create mode 100644 drivers/leds/leds-lp3944.c create mode 100644 include/linux/leds-lp3944.h diff --git a/Documentation/leds-lp3944.txt b/Documentation/leds-lp3944.txt new file mode 100644 index 00000000000..c6eda18b15e --- /dev/null +++ b/Documentation/leds-lp3944.txt @@ -0,0 +1,50 @@ +Kernel driver lp3944 +==================== + + * National Semiconductor LP3944 Fun-light Chip + Prefix: 'lp3944' + Addresses scanned: None (see the Notes section below) + Datasheet: Publicly available at the National Semiconductor website + http://www.national.com/pf/LP/LP3944.html + +Authors: + Antonio Ospite + + +Description +----------- +The LP3944 is a helper chip that can drive up to 8 leds, with two programmable +DIM modes; it could even be used as a gpio expander but this driver assumes it +is used as a led controller. + +The DIM modes are used to set _blink_ patterns for leds, the pattern is +specified supplying two parameters: + - period: from 0s to 1.6s + - duty cycle: percentage of the period the led is on, from 0 to 100 + +Setting a led in DIM0 or DIM1 mode makes it blink according to the pattern. +See the datasheet for details. + +LP3944 can be found on Motorola A910 smartphone, where it drives the rgb +leds, the camera flash light and the lcds power. + + +Notes +----- +The chip is used mainly in embedded contexts, so this driver expects it is +registered using the i2c_board_info mechanism. + +To register the chip at address 0x60 on adapter 0, set the platform data +according to include/linux/leds-lp3944.h, set the i2c board info: + + static struct i2c_board_info __initdata a910_i2c_board_info[] = { + { + I2C_BOARD_INFO("lp3944", 0x60), + .platform_data = &a910_lp3944_leds, + }, + }; + +and register it in the platform init function + + i2c_register_board_info(0, a910_i2c_board_info, + ARRAY_SIZE(a910_i2c_board_info)); diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index cfcd6bf831c..7c8e7122aaa 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -146,6 +146,17 @@ config LEDS_GPIO_OF of_platform devices. For instance, LEDs which are listed in a "dts" file. +config LEDS_LP3944 + tristate "LED Support for N.S. LP3944 (Fun Light) I2C chip" + depends on LEDS_CLASS && I2C + help + This option enables support for LEDs connected to the National + Semiconductor LP3944 Lighting Management Unit (LMU) also known as + Fun Light Chip. + + To compile this driver as a module, choose M here: the + module will be called leds-lp3944. + config LEDS_CLEVO_MAIL tristate "Mail LED on Clevo notebook" depends on LEDS_CLASS && X86 && SERIO_I8042 && DMI diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index 2d41c4dcf92..e8cdcf77a4c 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -20,6 +20,7 @@ obj-$(CONFIG_LEDS_COBALT_RAQ) += leds-cobalt-raq.o obj-$(CONFIG_LEDS_SUNFIRE) += leds-sunfire.o obj-$(CONFIG_LEDS_PCA9532) += leds-pca9532.o obj-$(CONFIG_LEDS_GPIO) += leds-gpio.o +obj-$(CONFIG_LEDS_LP3944) += leds-lp3944.o obj-$(CONFIG_LEDS_CLEVO_MAIL) += leds-clevo-mail.o obj-$(CONFIG_LEDS_HP6XX) += leds-hp6xx.o obj-$(CONFIG_LEDS_FSG) += leds-fsg.o diff --git a/drivers/leds/leds-lp3944.c b/drivers/leds/leds-lp3944.c new file mode 100644 index 00000000000..5946208ba26 --- /dev/null +++ b/drivers/leds/leds-lp3944.c @@ -0,0 +1,466 @@ +/* + * leds-lp3944.c - driver for National Semiconductor LP3944 Funlight Chip + * + * Copyright (C) 2009 Antonio Ospite + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +/* + * I2C driver for National Semiconductor LP3944 Funlight Chip + * http://www.national.com/pf/LP/LP3944.html + * + * This helper chip can drive up to 8 leds, with two programmable DIM modes; + * it could even be used as a gpio expander but this driver assumes it is used + * as a led controller. + * + * The DIM modes are used to set _blink_ patterns for leds, the pattern is + * specified supplying two parameters: + * - period: from 0s to 1.6s + * - duty cycle: percentage of the period the led is on, from 0 to 100 + * + * LP3944 can be found on Motorola A910 smartphone, where it drives the rgb + * leds, the camera flash light and the displays backlights. + */ + +#include +#include +#include +#include +#include +#include + +/* Read Only Registers */ +#define LP3944_REG_INPUT1 0x00 /* LEDs 0-7 InputRegister (Read Only) */ +#define LP3944_REG_REGISTER1 0x01 /* None (Read Only) */ + +#define LP3944_REG_PSC0 0x02 /* Frequency Prescaler 0 (R/W) */ +#define LP3944_REG_PWM0 0x03 /* PWM Register 0 (R/W) */ +#define LP3944_REG_PSC1 0x04 /* Frequency Prescaler 1 (R/W) */ +#define LP3944_REG_PWM1 0x05 /* PWM Register 1 (R/W) */ +#define LP3944_REG_LS0 0x06 /* LEDs 0-3 Selector (R/W) */ +#define LP3944_REG_LS1 0x07 /* LEDs 4-7 Selector (R/W) */ + +/* These registers are not used to control leds in LP3944, they can store + * arbitrary values which the chip will ignore. + */ +#define LP3944_REG_REGISTER8 0x08 +#define LP3944_REG_REGISTER9 0x09 + +#define LP3944_DIM0 0 +#define LP3944_DIM1 1 + +/* period in ms */ +#define LP3944_PERIOD_MIN 0 +#define LP3944_PERIOD_MAX 1600 + +/* duty cycle is a percentage */ +#define LP3944_DUTY_CYCLE_MIN 0 +#define LP3944_DUTY_CYCLE_MAX 100 + +#define ldev_to_led(c) container_of(c, struct lp3944_led_data, ldev) + +/* Saved data */ +struct lp3944_led_data { + u8 id; + enum lp3944_type type; + enum lp3944_status status; + struct led_classdev ldev; + struct i2c_client *client; + struct work_struct work; +}; + +struct lp3944_data { + struct mutex lock; + struct i2c_client *client; + struct lp3944_led_data leds[LP3944_LEDS_MAX]; +}; + +static int lp3944_reg_read(struct i2c_client *client, u8 reg, u8 *value) +{ + int tmp; + + tmp = i2c_smbus_read_byte_data(client, reg); + if (tmp < 0) + return -EINVAL; + + *value = tmp; + + return 0; +} + +static int lp3944_reg_write(struct i2c_client *client, u8 reg, u8 value) +{ + return i2c_smbus_write_byte_data(client, reg, value); +} + +/** + * Set the period for DIM status + * + * @client: the i2c client + * @dim: either LP3944_DIM0 or LP3944_DIM1 + * @period: period of a blink, that is a on/off cycle, expressed in ms. + */ +static int lp3944_dim_set_period(struct i2c_client *client, u8 dim, u16 period) +{ + u8 psc_reg; + u8 psc_value; + int err; + + if (dim == LP3944_DIM0) + psc_reg = LP3944_REG_PSC0; + else if (dim == LP3944_DIM1) + psc_reg = LP3944_REG_PSC1; + else + return -EINVAL; + + /* Convert period to Prescaler value */ + if (period > LP3944_PERIOD_MAX) + return -EINVAL; + + psc_value = (period * 255) / LP3944_PERIOD_MAX; + + err = lp3944_reg_write(client, psc_reg, psc_value); + + return err; +} + +/** + * Set the duty cycle for DIM status + * + * @client: the i2c client + * @dim: either LP3944_DIM0 or LP3944_DIM1 + * @duty_cycle: percentage of a period during which a led is ON + */ +static int lp3944_dim_set_dutycycle(struct i2c_client *client, u8 dim, + u8 duty_cycle) +{ + u8 pwm_reg; + u8 pwm_value; + int err; + + if (dim == LP3944_DIM0) + pwm_reg = LP3944_REG_PWM0; + else if (dim == LP3944_DIM1) + pwm_reg = LP3944_REG_PWM1; + else + return -EINVAL; + + /* Convert duty cycle to PWM value */ + if (duty_cycle > LP3944_DUTY_CYCLE_MAX) + return -EINVAL; + + pwm_value = (duty_cycle * 255) / LP3944_DUTY_CYCLE_MAX; + + err = lp3944_reg_write(client, pwm_reg, pwm_value); + + return err; +} + +/** + * Set the led status + * + * @led: a lp3944_led_data structure + * @status: one of LP3944_LED_STATUS_OFF + * LP3944_LED_STATUS_ON + * LP3944_LED_STATUS_DIM0 + * LP3944_LED_STATUS_DIM1 + */ +static int lp3944_led_set(struct lp3944_led_data *led, u8 status) +{ + struct lp3944_data *data = i2c_get_clientdata(led->client); + u8 id = led->id; + u8 reg; + u8 val = 0; + int err; + + dev_dbg(&led->client->dev, "%s: %s, status before normalization:%d\n", + __func__, led->ldev.name, status); + + switch (id) { + case LP3944_LED0: + case LP3944_LED1: + case LP3944_LED2: + case LP3944_LED3: + reg = LP3944_REG_LS0; + break; + case LP3944_LED4: + case LP3944_LED5: + case LP3944_LED6: + case LP3944_LED7: + id -= LP3944_LED4; + reg = LP3944_REG_LS1; + break; + default: + return -EINVAL; + } + + if (status > LP3944_LED_STATUS_DIM1) + return -EINVAL; + + /* invert only 0 and 1, leave unchanged the other values, + * remember we are abusing status to set blink patterns + */ + if (led->type == LP3944_LED_TYPE_LED_INVERTED && status < 2) + status = 1 - status; + + mutex_lock(&data->lock); + lp3944_reg_read(led->client, reg, &val); + + val &= ~(LP3944_LED_STATUS_MASK << (id << 1)); + val |= (status << (id << 1)); + + dev_dbg(&led->client->dev, "%s: %s, reg:%d id:%d status:%d val:%#x\n", + __func__, led->ldev.name, reg, id, status, val); + + /* set led status */ + err = lp3944_reg_write(led->client, reg, val); + mutex_unlock(&data->lock); + + return err; +} + +static int lp3944_led_set_blink(struct led_classdev *led_cdev, + unsigned long *delay_on, + unsigned long *delay_off) +{ + struct lp3944_led_data *led = ldev_to_led(led_cdev); + u16 period; + u8 duty_cycle; + int err; + + /* units are in ms */ + if (*delay_on + *delay_off > LP3944_PERIOD_MAX) + return -EINVAL; + + if (*delay_on == 0 && *delay_off == 0) { + /* Special case: the leds subsystem requires a default user + * friendly blink pattern for the LED. Let's blink the led + * slowly (1Hz). + */ + *delay_on = 500; + *delay_off = 500; + } + + period = (*delay_on) + (*delay_off); + + /* duty_cycle is the percentage of period during which the led is ON */ + duty_cycle = 100 * (*delay_on) / period; + + /* invert duty cycle for inverted leds, this has the same effect of + * swapping delay_on and delay_off + */ + if (led->type == LP3944_LED_TYPE_LED_INVERTED) + duty_cycle = 100 - duty_cycle; + + /* NOTE: using always the first DIM mode, this means that all leds + * will have the same blinking pattern. + * + * We could find a way later to have two leds blinking in hardware + * with different patterns at the same time, falling back to software + * control for the other ones. + */ + err = lp3944_dim_set_period(led->client, LP3944_DIM0, period); + if (err) + return err; + + err = lp3944_dim_set_dutycycle(led->client, LP3944_DIM0, duty_cycle); + if (err) + return err; + + dev_dbg(&led->client->dev, "%s: OK hardware accelerated blink!\n", + __func__); + + led->status = LP3944_LED_STATUS_DIM0; + schedule_work(&led->work); + + return 0; +} + +static void lp3944_led_set_brightness(struct led_classdev *led_cdev, + enum led_brightness brightness) +{ + struct lp3944_led_data *led = ldev_to_led(led_cdev); + + dev_dbg(&led->client->dev, "%s: %s, %d\n", + __func__, led_cdev->name, brightness); + + led->status = brightness; + schedule_work(&led->work); +} + +static void lp3944_led_work(struct work_struct *work) +{ + struct lp3944_led_data *led; + + led = container_of(work, struct lp3944_led_data, work); + lp3944_led_set(led, led->status); +} + +static int lp3944_configure(struct i2c_client *client, + struct lp3944_data *data, + struct lp3944_platform_data *pdata) +{ + int i, err = 0; + + for (i = 0; i < pdata->leds_size; i++) { + struct lp3944_led *pled = &pdata->leds[i]; + struct lp3944_led_data *led = &data->leds[i]; + led->client = client; + led->id = i; + + switch (pled->type) { + + case LP3944_LED_TYPE_LED: + case LP3944_LED_TYPE_LED_INVERTED: + led->type = pled->type; + led->status = pled->status; + led->ldev.name = pled->name; + led->ldev.max_brightness = 1; + led->ldev.brightness_set = lp3944_led_set_brightness; + led->ldev.blink_set = lp3944_led_set_blink; + led->ldev.flags = LED_CORE_SUSPENDRESUME; + + INIT_WORK(&led->work, lp3944_led_work); + err = led_classdev_register(&client->dev, &led->ldev); + if (err < 0) { + dev_err(&client->dev, + "couldn't register LED %s\n", + led->ldev.name); + goto exit; + } + + /* to expose the default value to userspace */ + led->ldev.brightness = led->status; + + /* Set the default led status */ + err = lp3944_led_set(led, led->status); + if (err < 0) { + dev_err(&client->dev, + "%s couldn't set STATUS %d\n", + led->ldev.name, led->status); + goto exit; + } + break; + + case LP3944_LED_TYPE_NONE: + default: + break; + + } + } + return 0; + +exit: + if (i > 0) + for (i = i - 1; i >= 0; i--) + switch (pdata->leds[i].type) { + + case LP3944_LED_TYPE_LED: + case LP3944_LED_TYPE_LED_INVERTED: + led_classdev_unregister(&data->leds[i].ldev); + cancel_work_sync(&data->leds[i].work); + break; + + case LP3944_LED_TYPE_NONE: + default: + break; + } + + return err; +} + +static int __devinit lp3944_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct lp3944_platform_data *lp3944_pdata = client->dev.platform_data; + struct lp3944_data *data; + + if (lp3944_pdata == NULL) { + dev_err(&client->dev, "no platform data\n"); + return -EINVAL; + } + + /* Let's see whether this adapter can support what we need. */ + if (!i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_BYTE_DATA)) { + dev_err(&client->dev, "insufficient functionality!\n"); + return -ENODEV; + } + + data = kzalloc(sizeof(struct lp3944_data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->client = client; + i2c_set_clientdata(client, data); + + mutex_init(&data->lock); + + dev_info(&client->dev, "lp3944 enabled\n"); + + lp3944_configure(client, data, lp3944_pdata); + return 0; +} + +static int __devexit lp3944_remove(struct i2c_client *client) +{ + struct lp3944_platform_data *pdata = client->dev.platform_data; + struct lp3944_data *data = i2c_get_clientdata(client); + int i; + + for (i = 0; i < pdata->leds_size; i++) + switch (data->leds[i].type) { + case LP3944_LED_TYPE_LED: + case LP3944_LED_TYPE_LED_INVERTED: + led_classdev_unregister(&data->leds[i].ldev); + cancel_work_sync(&data->leds[i].work); + break; + + case LP3944_LED_TYPE_NONE: + default: + break; + } + + kfree(data); + i2c_set_clientdata(client, NULL); + + return 0; +} + +/* lp3944 i2c driver struct */ +static const struct i2c_device_id lp3944_id[] = { + {"lp3944", 0}, + {} +}; + +MODULE_DEVICE_TABLE(i2c, lp3944_id); + +static struct i2c_driver lp3944_driver = { + .driver = { + .name = "lp3944", + }, + .probe = lp3944_probe, + .remove = __devexit_p(lp3944_remove), + .id_table = lp3944_id, +}; + +static int __init lp3944_module_init(void) +{ + return i2c_add_driver(&lp3944_driver); +} + +static void __exit lp3944_module_exit(void) +{ + i2c_del_driver(&lp3944_driver); +} + +module_init(lp3944_module_init); +module_exit(lp3944_module_exit); + +MODULE_AUTHOR("Antonio Ospite "); +MODULE_DESCRIPTION("LP3944 Fun Light Chip"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/leds-lp3944.h b/include/linux/leds-lp3944.h new file mode 100644 index 00000000000..afc9f9fd70f --- /dev/null +++ b/include/linux/leds-lp3944.h @@ -0,0 +1,53 @@ +/* + * leds-lp3944.h - platform data structure for lp3944 led controller + * + * Copyright (C) 2009 Antonio Ospite + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#ifndef __LINUX_LEDS_LP3944_H +#define __LINUX_LEDS_LP3944_H + +#include +#include + +#define LP3944_LED0 0 +#define LP3944_LED1 1 +#define LP3944_LED2 2 +#define LP3944_LED3 3 +#define LP3944_LED4 4 +#define LP3944_LED5 5 +#define LP3944_LED6 6 +#define LP3944_LED7 7 +#define LP3944_LEDS_MAX 8 + +#define LP3944_LED_STATUS_MASK 0x03 +enum lp3944_status { + LP3944_LED_STATUS_OFF = 0x0, + LP3944_LED_STATUS_ON = 0x1, + LP3944_LED_STATUS_DIM0 = 0x2, + LP3944_LED_STATUS_DIM1 = 0x3 +}; + +enum lp3944_type { + LP3944_LED_TYPE_NONE, + LP3944_LED_TYPE_LED, + LP3944_LED_TYPE_LED_INVERTED, +}; + +struct lp3944_led { + char *name; + enum lp3944_type type; + enum lp3944_status status; +}; + +struct lp3944_platform_data { + struct lp3944_led leds[LP3944_LEDS_MAX]; + u8 leds_size; +}; + +#endif /* __LINUX_LEDS_LP3944_H */ -- cgit v1.2.3 From ed88bae6918fa990cbfe47316bd0f790121aaf00 Mon Sep 17 00:00:00 2001 From: Trent Piepho Date: Tue, 12 May 2009 15:33:12 -0700 Subject: leds: Add options to have GPIO LEDs start on or keep their state There already is a "default-on" trigger but there are problems with it. For one, it's a inefficient way to do it and requires led trigger support to be compiled in. But the real reason is that is produces a glitch on the LED. The GPIO is allocate with the LED *off*, then *later* when the trigger runs it is turned back on. If the LED was already on via the GPIO's reset default or action of the firmware, this produces a glitch where the LED goes from on to off to on. While normally this is fast enough that it wouldn't be noticeable to a human observer, there are still serious problems. One is that there may be something else on the GPIO line, like a hardware alarm or watchdog, that is fast enough to notice the glitch. Another is that the kernel may panic before the LED is turned back on, thus hanging with the LED in the wrong state. This is not just speculation, but actually happened to me with an embedded system that has an LED which should turn off when the kernel finishes booting, which was left in the incorrect state due to a bug in the OF LED binding code. We also let GPIO LEDs get their initial value from whatever the current state of the GPIO line is. On some systems the LEDs are put into some state by the firmware or hardware before Linux boots, and it is desired to have them keep this state which is otherwise unknown to Linux. This requires that the underlying GPIO driver support reading the value of output GPIOs. Some drivers support this and some do not. The platform device binding gains a field in the platform data "default_state" that controls this. There are three constants defined to select from on, off, or keeping the current state. The OpenFirmware binding uses a property named "default-state" that can be set to "on", "off", or "keep". The default if the property isn't present is off. Signed-off-by: Trent Piepho Acked-by: Grant Likely Acked-by: Wolfram Sang Acked-by: Sean MacLennan Signed-off-by: Richard Purdie --- Documentation/powerpc/dts-bindings/gpio/led.txt | 17 ++++++++++++++++- drivers/leds/leds-gpio.c | 20 +++++++++++++++++--- include/linux/leds.h | 9 +++++++-- 3 files changed, 40 insertions(+), 6 deletions(-) diff --git a/Documentation/powerpc/dts-bindings/gpio/led.txt b/Documentation/powerpc/dts-bindings/gpio/led.txt index 4fe14deedc0..064db928c3c 100644 --- a/Documentation/powerpc/dts-bindings/gpio/led.txt +++ b/Documentation/powerpc/dts-bindings/gpio/led.txt @@ -16,10 +16,17 @@ LED sub-node properties: string defining the trigger assigned to the LED. Current triggers are: "backlight" - LED will act as a back-light, controlled by the framebuffer system - "default-on" - LED will turn on + "default-on" - LED will turn on, but see "default-state" below "heartbeat" - LED "double" flashes at a load average based rate "ide-disk" - LED indicates disk activity "timer" - LED flashes at a fixed, configurable rate +- default-state: (optional) The initial state of the LED. Valid + values are "on", "off", and "keep". If the LED is already on or off + and the default-state property is set the to same value, then no + glitch should be produced where the LED momentarily turns off (or + on). The "keep" setting will keep the LED at whatever its current + state is, without producing a glitch. The default is off if this + property is not present. Examples: @@ -30,14 +37,22 @@ leds { gpios = <&mcu_pio 0 1>; /* Active low */ linux,default-trigger = "ide-disk"; }; + + fault { + gpios = <&mcu_pio 1 0>; + /* Keep LED on if BIOS detected hardware fault */ + default-state = "keep"; + }; }; run-control { compatible = "gpio-leds"; red { gpios = <&mpc8572 6 0>; + default-state = "off"; }; green { gpios = <&mpc8572 7 0>; + default-state = "on"; }; } diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c index 76895e69104..6b06638eb5b 100644 --- a/drivers/leds/leds-gpio.c +++ b/drivers/leds/leds-gpio.c @@ -76,7 +76,7 @@ static int __devinit create_gpio_led(const struct gpio_led *template, struct gpio_led_data *led_dat, struct device *parent, int (*blink_set)(unsigned, unsigned long *, unsigned long *)) { - int ret; + int ret, state; /* skip leds that aren't available */ if (!gpio_is_valid(template->gpio)) { @@ -99,11 +99,15 @@ static int __devinit create_gpio_led(const struct gpio_led *template, led_dat->cdev.blink_set = gpio_blink_set; } led_dat->cdev.brightness_set = gpio_led_set; - led_dat->cdev.brightness = LED_OFF; + if (template->default_state == LEDS_GPIO_DEFSTATE_KEEP) + state = !!gpio_get_value(led_dat->gpio) ^ led_dat->active_low; + else + state = (template->default_state == LEDS_GPIO_DEFSTATE_ON); + led_dat->cdev.brightness = state ? LED_FULL : LED_OFF; if (!template->retain_state_suspended) led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME; - ret = gpio_direction_output(led_dat->gpio, led_dat->active_low); + ret = gpio_direction_output(led_dat->gpio, led_dat->active_low ^ state); if (ret < 0) goto err; @@ -223,12 +227,22 @@ static int __devinit of_gpio_leds_probe(struct of_device *ofdev, memset(&led, 0, sizeof(led)); for_each_child_of_node(np, child) { enum of_gpio_flags flags; + const char *state; led.gpio = of_get_gpio_flags(child, 0, &flags); led.active_low = flags & OF_GPIO_ACTIVE_LOW; led.name = of_get_property(child, "label", NULL) ? : child->name; led.default_trigger = of_get_property(child, "linux,default-trigger", NULL); + state = of_get_property(child, "default-state", NULL); + if (state) { + if (!strcmp(state, "keep")) + led.default_state = LEDS_GPIO_DEFSTATE_KEEP; + else if(!strcmp(state, "on")) + led.default_state = LEDS_GPIO_DEFSTATE_ON; + else + led.default_state = LEDS_GPIO_DEFSTATE_OFF; + } ret = create_gpio_led(&led, &pdata->led_data[pdata->num_leds++], &ofdev->dev, NULL); diff --git a/include/linux/leds.h b/include/linux/leds.h index c7f0b148df0..62af62915cf 100644 --- a/include/linux/leds.h +++ b/include/linux/leds.h @@ -143,9 +143,14 @@ struct gpio_led { const char *name; const char *default_trigger; unsigned gpio; - u8 active_low : 1; - u8 retain_state_suspended : 1; + unsigned active_low : 1; + unsigned retain_state_suspended : 1; + unsigned default_state : 2; + /* default_state should be one of LEDS_GPIO_DEFSTATE_(ON|OFF|KEEP) */ }; +#define LEDS_GPIO_DEFSTATE_OFF 0 +#define LEDS_GPIO_DEFSTATE_ON 1 +#define LEDS_GPIO_DEFSTATE_KEEP 2 struct gpio_led_platform_data { int num_leds; -- cgit v1.2.3 From a1dd8c617217322614f0465ae347895c4b58e1ab Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Mon, 22 Jun 2009 14:54:13 +0100 Subject: leds: Futher document blink_set Futher document blink_set function pointer Signed-off-by: Richard Purdie --- include/linux/leds.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/include/linux/leds.h b/include/linux/leds.h index 62af62915cf..d8bf9665e70 100644 --- a/include/linux/leds.h +++ b/include/linux/leds.h @@ -47,7 +47,8 @@ struct led_classdev { /* Activate hardware accelerated blink, delays are in * miliseconds and if none is provided then a sensible default - * should be chosen. */ + * should be chosen. The call can adjust the timings if it can't + * match the values specified exactly. */ int (*blink_set)(struct led_classdev *led_cdev, unsigned long *delay_on, unsigned long *delay_off); -- cgit v1.2.3 From 1d469c6c38c9deaa1836d2c1955330944719e4ef Mon Sep 17 00:00:00 2001 From: Aviv Laufer Date: Tue, 23 Jun 2009 16:28:36 +0300 Subject: backlight: Fix tdo24m crash on kmalloc There is a crash in tdo24m module caused by a call to kmalloc with the second parameter sizeof(flag) instead of flag. Signed-off-by: Aviv Laufer Signed-off-by: Richard Purdie --- drivers/video/backlight/tdo24m.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/video/backlight/tdo24m.c b/drivers/video/backlight/tdo24m.c index 1dae7f8f3c6..51422fc4f60 100644 --- a/drivers/video/backlight/tdo24m.c +++ b/drivers/video/backlight/tdo24m.c @@ -356,7 +356,7 @@ static int __devinit tdo24m_probe(struct spi_device *spi) lcd->power = FB_BLANK_POWERDOWN; lcd->mode = MODE_VGA; /* default to VGA */ - lcd->buf = kmalloc(TDO24M_SPI_BUFF_SIZE, sizeof(GFP_KERNEL)); + lcd->buf = kmalloc(TDO24M_SPI_BUFF_SIZE, GFP_KERNEL); if (lcd->buf == NULL) { kfree(lcd); return -ENOMEM; -- cgit v1.2.3 From cca03c0aeb18a975abec28df518a2b64ae3e6964 Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Tue, 23 Jun 2009 17:12:49 +0530 Subject: perf stat: Fix verbose for perf stat Error message should use stderr for verbose (-v), otherwise message will be lost for: $ ./perf stat -v > /dev/null For example on AMD bus-cycles event is not available so now it looks like: $ ./perf stat -v -e bus-cycles ls > /dev/null Error: counter 0, sys_perf_counter_open() syscall returned with -1 (Invalid argument) Performance counter stats for 'ls': bus-cycles 0.006765877 seconds time elapsed. Signed-off-by: Jaswinder Singh Rajput Cc: Peter Zijlstra LKML-Reference: <1245757369.3776.1.camel@localhost.localdomain> Signed-off-by: Ingo Molnar --- tools/perf/builtin-stat.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 6d3eeac1ea2..5e04fcc8d07 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -109,6 +109,10 @@ static u64 walltime_nsecs_noise; static u64 runtime_cycles_avg; static u64 runtime_cycles_noise; + +#define ERR_PERF_OPEN \ +"Error: counter %d, sys_perf_counter_open() syscall returned with %d (%s)\n" + static void create_perf_stat_counter(int counter) { struct perf_counter_attr *attr = attrs + counter; @@ -119,20 +123,20 @@ static void create_perf_stat_counter(int counter) if (system_wide) { int cpu; - for (cpu = 0; cpu < nr_cpus; cpu ++) { + for (cpu = 0; cpu < nr_cpus; cpu++) { fd[cpu][counter] = sys_perf_counter_open(attr, -1, cpu, -1, 0); - if (fd[cpu][counter] < 0 && verbose) { - printf("Error: counter %d, sys_perf_counter_open() syscall returned with %d (%s)\n", counter, fd[cpu][counter], strerror(errno)); - } + if (fd[cpu][counter] < 0 && verbose) + fprintf(stderr, ERR_PERF_OPEN, counter, + fd[cpu][counter], strerror(errno)); } } else { attr->inherit = inherit; attr->disabled = 1; fd[0][counter] = sys_perf_counter_open(attr, 0, -1, -1, 0); - if (fd[0][counter] < 0 && verbose) { - printf("Error: counter %d, sys_perf_counter_open() syscall returned with %d (%s)\n", counter, fd[0][counter], strerror(errno)); - } + if (fd[0][counter] < 0 && verbose) + fprintf(stderr, ERR_PERF_OPEN, counter, + fd[0][counter], strerror(errno)); } } @@ -168,7 +172,7 @@ static void read_counter(int counter) count[0] = count[1] = count[2] = 0; nv = scale ? 3 : 1; - for (cpu = 0; cpu < nr_cpus; cpu ++) { + for (cpu = 0; cpu < nr_cpus; cpu++) { if (fd[cpu][counter] < 0) continue; -- cgit v1.2.3 From 7262b6e4a4cc18d0f67df145d032c843e4bc382b Mon Sep 17 00:00:00 2001 From: Hidetoshi Seto Date: Tue, 23 Jun 2009 12:40:54 +0900 Subject: x86, mce: Fix mce resume on 32bit Calling mcheck_init() on resume is required only with CONFIG_X86_OLD_MCE=y. Signed-off-by: Hidetoshi Seto Acked-by: Andi Kleen Signed-off-by: H. Peter Anvin --- arch/x86/power/cpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c index d277ef1eea5..b3d20b9cac6 100644 --- a/arch/x86/power/cpu.c +++ b/arch/x86/power/cpu.c @@ -244,7 +244,7 @@ static void __restore_processor_state(struct saved_context *ctxt) do_fpu_end(); mtrr_ap_init(); -#ifdef CONFIG_X86_32 +#ifdef CONFIG_X86_OLD_MCE mcheck_init(&boot_cpu_data); #endif } -- cgit v1.2.3 From 76609a6928bff29ca05a94420ae3e088fbb9c2f9 Mon Sep 17 00:00:00 2001 From: Nelson Castillo Date: Tue, 23 Jun 2009 13:54:32 -0500 Subject: [ARM] GTA02: build fixes (s3c2410_nand_set usage) This patch fixes two errors we get when building GTA02 kernel. ~ use_bbt is incorrect, we need flash_bbt. ~ We do not need .force_soft_ecc because we can unset CONFIG_MTD_NAND_S3C2410_HWECC. Signed-off-by: Nelson Castillo [ben-linux@fluff.org: updated patch description] Signed-off-by: Ben Dooks --- arch/arm/mach-s3c2442/mach-gta02.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/arm/mach-s3c2442/mach-gta02.c b/arch/arm/mach-s3c2442/mach-gta02.c index e23b581aa0e..0fb385bd9cd 100644 --- a/arch/arm/mach-s3c2442/mach-gta02.c +++ b/arch/arm/mach-s3c2442/mach-gta02.c @@ -433,8 +433,7 @@ static struct s3c2410_nand_set gta02_nand_sets[] = { */ .name = "neo1973-nand", .nr_chips = 1, - .use_bbt = 1, - .force_soft_ecc = 1, + .flash_bbt = 1, }, }; -- cgit v1.2.3 From f92e93eb5f4d56d73215f089580d53597bacd468 Mon Sep 17 00:00:00 2001 From: Jerome Glisse Date: Mon, 22 Jun 2009 18:15:58 +0200 Subject: drm/radeon: fix radeon kms framebuffer device smem.start is a physical address which kernel can remap to access video memory of the fb buffer. We now pin the fb buffer into vram by doing so we are loosing vram but fbdev need to be reworked to allow change in framebuffer address. Signed-off-by: Jerome Glisse Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_device.c | 4 ---- drivers/gpu/drm/radeon/radeon_fb.c | 27 +++++++++++++++++++-------- drivers/gpu/drm/radeon/radeon_object.c | 30 ------------------------------ 3 files changed, 19 insertions(+), 42 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index f30aa7274a5..3f48a57531b 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -496,7 +496,6 @@ int radeon_device_init(struct radeon_device *rdev, radeon_errata(rdev); /* Initialize scratch registers */ radeon_scratch_init(rdev); - /* TODO: disable VGA need to use VGA request */ /* BIOS*/ if (!radeon_get_bios(rdev)) { @@ -604,9 +603,6 @@ int radeon_device_init(struct radeon_device *rdev, if (r) { return r; } - if (rdev->fbdev_rfb && rdev->fbdev_rfb->obj) { - rdev->fbdev_robj = rdev->fbdev_rfb->obj->driver_private; - } if (!ret) { DRM_INFO("radeon: kernel modesetting successfully initialized.\n"); } diff --git a/drivers/gpu/drm/radeon/radeon_fb.c b/drivers/gpu/drm/radeon/radeon_fb.c index fa86d398945..09987089193 100644 --- a/drivers/gpu/drm/radeon/radeon_fb.c +++ b/drivers/gpu/drm/radeon/radeon_fb.c @@ -478,14 +478,16 @@ int radeonfb_create(struct radeon_device *rdev, { struct fb_info *info; struct radeon_fb_device *rfbdev; - struct drm_framebuffer *fb; + struct drm_framebuffer *fb = NULL; struct radeon_framebuffer *rfb; struct drm_mode_fb_cmd mode_cmd; struct drm_gem_object *gobj = NULL; struct radeon_object *robj = NULL; struct device *device = &rdev->pdev->dev; int size, aligned_size, ret; + u64 fb_gpuaddr; void *fbptr = NULL; + unsigned long tmp; mode_cmd.width = surface_width; mode_cmd.height = surface_height; @@ -498,11 +500,12 @@ int radeonfb_create(struct radeon_device *rdev, aligned_size = ALIGN(size, PAGE_SIZE); ret = radeon_gem_object_create(rdev, aligned_size, 0, - RADEON_GEM_DOMAIN_VRAM, - false, ttm_bo_type_kernel, - false, &gobj); + RADEON_GEM_DOMAIN_VRAM, + false, ttm_bo_type_kernel, + false, &gobj); if (ret) { - printk(KERN_ERR "failed to allocate framebuffer\n"); + printk(KERN_ERR "failed to allocate framebuffer (%d %d)\n", + surface_width, surface_height); ret = -ENOMEM; goto out; } @@ -515,12 +518,19 @@ int radeonfb_create(struct radeon_device *rdev, ret = -ENOMEM; goto out_unref; } + ret = radeon_object_pin(robj, RADEON_GEM_DOMAIN_VRAM, &fb_gpuaddr); + if (ret) { + printk(KERN_ERR "failed to pin framebuffer\n"); + ret = -ENOMEM; + goto out_unref; + } list_add(&fb->filp_head, &rdev->ddev->mode_config.fb_kernel_list); rfb = to_radeon_framebuffer(fb); *rfb_p = rfb; rdev->fbdev_rfb = rfb; + rdev->fbdev_robj = robj; info = framebuffer_alloc(sizeof(struct radeon_fb_device), device); if (info == NULL) { @@ -546,8 +556,8 @@ int radeonfb_create(struct radeon_device *rdev, info->flags = FBINFO_DEFAULT; info->fbops = &radeonfb_ops; info->fix.line_length = fb->pitch; - info->screen_base = fbptr; - info->fix.smem_start = (unsigned long)fbptr; + tmp = fb_gpuaddr - rdev->mc.vram_location; + info->fix.smem_start = rdev->mc.aper_base + tmp; info->fix.smem_len = size; info->screen_base = fbptr; info->screen_size = size; @@ -644,7 +654,7 @@ out_unref: if (robj) { radeon_object_kunmap(robj); } - if (ret) { + if (fb && ret) { list_del(&fb->filp_head); drm_gem_object_unreference(gobj); drm_framebuffer_cleanup(fb); @@ -813,6 +823,7 @@ int radeonfb_remove(struct drm_device *dev, struct drm_framebuffer *fb) robj = rfb->obj->driver_private; unregister_framebuffer(info); radeon_object_kunmap(robj); + radeon_object_unpin(robj); framebuffer_release(info); } diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c index 983e8df5e00..bac0d06c52a 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -223,7 +223,6 @@ int radeon_object_pin(struct radeon_object *robj, uint32_t domain, { uint32_t flags; uint32_t tmp; - void *fbptr; int r; flags = radeon_object_flags_from_domain(domain); @@ -242,10 +241,6 @@ int radeon_object_pin(struct radeon_object *robj, uint32_t domain, DRM_ERROR("radeon: failed to reserve object for pinning it.\n"); return r; } - if (robj->rdev->fbdev_robj == robj) { - mutex_lock(&robj->rdev->fbdev_info->lock); - radeon_object_kunmap(robj); - } tmp = robj->tobj.mem.placement; ttm_flag_masked(&tmp, flags, TTM_PL_MASK_MEM); robj->tobj.proposed_placement = tmp | TTM_PL_FLAG_NO_EVICT | TTM_PL_MASK_CACHING; @@ -261,23 +256,12 @@ int radeon_object_pin(struct radeon_object *robj, uint32_t domain, DRM_ERROR("radeon: failed to pin object.\n"); } radeon_object_unreserve(robj); - if (robj->rdev->fbdev_robj == robj) { - if (!r) { - r = radeon_object_kmap(robj, &fbptr); - } - if (!r) { - robj->rdev->fbdev_info->screen_base = fbptr; - robj->rdev->fbdev_info->fix.smem_start = (unsigned long)fbptr; - } - mutex_unlock(&robj->rdev->fbdev_info->lock); - } return r; } void radeon_object_unpin(struct radeon_object *robj) { uint32_t flags; - void *fbptr; int r; spin_lock(&robj->tobj.lock); @@ -297,10 +281,6 @@ void radeon_object_unpin(struct radeon_object *robj) DRM_ERROR("radeon: failed to reserve object for unpinning it.\n"); return; } - if (robj->rdev->fbdev_robj == robj) { - mutex_lock(&robj->rdev->fbdev_info->lock); - radeon_object_kunmap(robj); - } flags = robj->tobj.mem.placement; robj->tobj.proposed_placement = flags & ~TTM_PL_FLAG_NO_EVICT; r = ttm_buffer_object_validate(&robj->tobj, @@ -310,16 +290,6 @@ void radeon_object_unpin(struct radeon_object *robj) DRM_ERROR("radeon: failed to unpin buffer.\n"); } radeon_object_unreserve(robj); - if (robj->rdev->fbdev_robj == robj) { - if (!r) { - r = radeon_object_kmap(robj, &fbptr); - } - if (!r) { - robj->rdev->fbdev_info->screen_base = fbptr; - robj->rdev->fbdev_info->fix.smem_start = (unsigned long)fbptr; - } - mutex_unlock(&robj->rdev->fbdev_info->lock); - } } int radeon_object_wait(struct radeon_object *robj) -- cgit v1.2.3 From 696d4df1dbfe0b054e94c1990b49c1727ffc1ff0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Michel=20D=C3=A4nzer?= Date: Tue, 23 Jun 2009 16:12:53 +0200 Subject: drm/radeon: Don't initialize acceleration related fields of struct fb_info. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Might lure userspace into trying silly things otherwise. Signed-off-by: Michel Dänzer Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_fb.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_fb.c b/drivers/gpu/drm/radeon/radeon_fb.c index 09987089193..9e8f191eb64 100644 --- a/drivers/gpu/drm/radeon/radeon_fb.c +++ b/drivers/gpu/drm/radeon/radeon_fb.c @@ -551,7 +551,7 @@ int radeonfb_create(struct radeon_device *rdev, info->fix.xpanstep = 1; /* doing it in hw */ info->fix.ypanstep = 1; /* doing it in hw */ info->fix.ywrapstep = 0; - info->fix.accel = FB_ACCEL_I830; + info->fix.accel = FB_ACCEL_NONE; info->fix.type_aux = 0; info->flags = FBINFO_DEFAULT; info->fbops = &radeonfb_ops; @@ -572,8 +572,8 @@ int radeonfb_create(struct radeon_device *rdev, info->var.width = -1; info->var.xres = fb_width; info->var.yres = fb_height; - info->fix.mmio_start = pci_resource_start(rdev->pdev, 2); - info->fix.mmio_len = pci_resource_len(rdev->pdev, 2); + info->fix.mmio_start = 0; + info->fix.mmio_len = 0; info->pixmap.size = 64*1024; info->pixmap.buf_align = 8; info->pixmap.access_align = 32; -- cgit v1.2.3 From b1e3a6d1c4d0ac75ad8289bcfd69efcc9b1bc6e5 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Michel=20D=C3=A4nzer?= Date: Tue, 23 Jun 2009 16:12:54 +0200 Subject: drm/radeon: Clear surface registers at initialization time. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Some PowerMac firmwares set up a tiling surface at the beginning of VRAM which messes us up otherwise. Signed-off-by: Michel Dänzer Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_device.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 3f48a57531b..f97563db4e5 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -34,6 +34,23 @@ #include "radeon_asic.h" #include "atom.h" +/* + * Clear GPU surface registers. + */ +static void radeon_surface_init(struct radeon_device *rdev) +{ + /* FIXME: check this out */ + if (rdev->family < CHIP_R600) { + int i; + + for (i = 0; i < 8; i++) { + WREG32(RADEON_SURFACE0_INFO + + i * (RADEON_SURFACE1_INFO - RADEON_SURFACE0_INFO), + 0); + } + } +} + /* * GPU scratch registers helpers function. */ @@ -496,6 +513,9 @@ int radeon_device_init(struct radeon_device *rdev, radeon_errata(rdev); /* Initialize scratch registers */ radeon_scratch_init(rdev); + /* Initialize surface registers */ + radeon_surface_init(rdev); + /* TODO: disable VGA need to use VGA request */ /* BIOS*/ if (!radeon_get_bios(rdev)) { -- cgit v1.2.3 From e14cbee401cd00779a5267128371506b22c77bc9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Michel=20D=C3=A4nzer?= Date: Tue, 23 Jun 2009 12:36:32 +0200 Subject: drm: Fix shifts which were miscalculated when converting from bitfields. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Looks like I managed to mess up most shifts when converting from bitfields. :( The patch below works on my Thinkpad T500 (as well as on my PowerBook, where the previous change worked as well, maybe out of luck...). I'd appreciate more testing and eyes looking over it though. Signed-off-by: Michel Dänzer Tested-by: Michael Pyne Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_edid.c | 12 ++++++------ include/drm/drm_edid.h | 38 +++++++++++++++++++------------------- 2 files changed, 25 insertions(+), 25 deletions(-) diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 7d0835226f6..80cc6d06d61 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -294,10 +294,10 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev, unsigned vactive = (pt->vactive_vblank_hi & 0xf0) << 4 | pt->vactive_lo; unsigned hblank = (pt->hactive_hblank_hi & 0xf) << 8 | pt->hblank_lo; unsigned vblank = (pt->vactive_vblank_hi & 0xf) << 8 | pt->vblank_lo; - unsigned hsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0x3) << 8 | pt->hsync_offset_lo; - unsigned hsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0xc) << 6 | pt->hsync_pulse_width_lo; - unsigned vsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0x30) | (pt->vsync_offset_pulse_width_lo & 0xf); - unsigned vsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0xc0) >> 2 | pt->vsync_offset_pulse_width_lo >> 4; + unsigned hsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc0) << 2 | pt->hsync_offset_lo; + unsigned hsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x30) << 4 | pt->hsync_pulse_width_lo; + unsigned vsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc) >> 2 | pt->vsync_offset_pulse_width_lo >> 4; + unsigned vsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x3) << 4 | (pt->vsync_offset_pulse_width_lo & 0xf); /* ignore tiny modes */ if (hactive < 64 || vactive < 64) @@ -347,8 +347,8 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev, mode->flags |= (pt->misc & DRM_EDID_PT_VSYNC_POSITIVE) ? DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC; - mode->width_mm = pt->width_mm_lo | (pt->width_height_mm_hi & 0xf) << 8; - mode->height_mm = pt->height_mm_lo | (pt->width_height_mm_hi & 0xf0) << 4; + mode->width_mm = pt->width_mm_lo | (pt->width_height_mm_hi & 0xf0) << 4; + mode->height_mm = pt->height_mm_lo | (pt->width_height_mm_hi & 0xf) << 8; if (quirks & EDID_QUIRK_DETAILED_IN_CM) { mode->width_mm *= 10; diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h index c263e4d7175..7d6c9a2dfcb 100644 --- a/include/drm/drm_edid.h +++ b/include/drm/drm_edid.h @@ -35,11 +35,11 @@ struct est_timings { } __attribute__((packed)); /* 00=16:10, 01=4:3, 10=5:4, 11=16:9 */ -#define EDID_TIMING_ASPECT_SHIFT 0 +#define EDID_TIMING_ASPECT_SHIFT 6 #define EDID_TIMING_ASPECT_MASK (0x3 << EDID_TIMING_ASPECT_SHIFT) /* need to add 60 */ -#define EDID_TIMING_VFREQ_SHIFT 2 +#define EDID_TIMING_VFREQ_SHIFT 0 #define EDID_TIMING_VFREQ_MASK (0x3f << EDID_TIMING_VFREQ_SHIFT) struct std_timing { @@ -47,11 +47,11 @@ struct std_timing { u8 vfreq_aspect; } __attribute__((packed)); -#define DRM_EDID_PT_HSYNC_POSITIVE (1 << 6) -#define DRM_EDID_PT_VSYNC_POSITIVE (1 << 5) +#define DRM_EDID_PT_HSYNC_POSITIVE (1 << 1) +#define DRM_EDID_PT_VSYNC_POSITIVE (1 << 2) #define DRM_EDID_PT_SEPARATE_SYNC (3 << 3) -#define DRM_EDID_PT_STEREO (1 << 2) -#define DRM_EDID_PT_INTERLACED (1 << 1) +#define DRM_EDID_PT_STEREO (1 << 5) +#define DRM_EDID_PT_INTERLACED (1 << 7) /* If detailed data is pixel timing */ struct detailed_pixel_timing { @@ -93,7 +93,7 @@ struct detailed_data_monitor_range { } __attribute__((packed)); struct detailed_data_wpindex { - u8 white_xy_lo; /* Upper 2 bits each */ + u8 white_yx_lo; /* Lower 2 bits each */ u8 white_x_hi; u8 white_y_hi; u8 gamma; /* need to divide by 100 then add 1 */ @@ -135,21 +135,21 @@ struct detailed_timing { } data; } __attribute__((packed)); -#define DRM_EDID_INPUT_SERRATION_VSYNC (1 << 7) -#define DRM_EDID_INPUT_SYNC_ON_GREEN (1 << 5) -#define DRM_EDID_INPUT_COMPOSITE_SYNC (1 << 4) +#define DRM_EDID_INPUT_SERRATION_VSYNC (1 << 0) +#define DRM_EDID_INPUT_SYNC_ON_GREEN (1 << 1) +#define DRM_EDID_INPUT_COMPOSITE_SYNC (1 << 2) #define DRM_EDID_INPUT_SEPARATE_SYNCS (1 << 3) -#define DRM_EDID_INPUT_BLANK_TO_BLACK (1 << 2) -#define DRM_EDID_INPUT_VIDEO_LEVEL (3 << 1) -#define DRM_EDID_INPUT_DIGITAL (1 << 0) /* bits above must be zero if set */ +#define DRM_EDID_INPUT_BLANK_TO_BLACK (1 << 4) +#define DRM_EDID_INPUT_VIDEO_LEVEL (3 << 5) +#define DRM_EDID_INPUT_DIGITAL (1 << 7) /* bits below must be zero if set */ -#define DRM_EDID_FEATURE_DEFAULT_GTF (1 << 7) -#define DRM_EDID_FEATURE_PREFERRED_TIMING (1 << 6) -#define DRM_EDID_FEATURE_STANDARD_COLOR (1 << 5) +#define DRM_EDID_FEATURE_DEFAULT_GTF (1 << 0) +#define DRM_EDID_FEATURE_PREFERRED_TIMING (1 << 1) +#define DRM_EDID_FEATURE_STANDARD_COLOR (1 << 2) #define DRM_EDID_FEATURE_DISPLAY_TYPE (3 << 3) /* 00=mono, 01=rgb, 10=non-rgb, 11=unknown */ -#define DRM_EDID_FEATURE_PM_ACTIVE_OFF (1 << 2) -#define DRM_EDID_FEATURE_PM_SUSPEND (1 << 1) -#define DRM_EDID_FEATURE_PM_STANDBY (1 << 0) +#define DRM_EDID_FEATURE_PM_ACTIVE_OFF (1 << 5) +#define DRM_EDID_FEATURE_PM_SUSPEND (1 << 6) +#define DRM_EDID_FEATURE_PM_STANDBY (1 << 7) struct edid { u8 header[8]; -- cgit v1.2.3 From 176f613e60b63f2d77e6c69f036cfc754f3aaac6 Mon Sep 17 00:00:00 2001 From: Jerome Glisse Date: Mon, 22 Jun 2009 18:16:13 +0200 Subject: drm/radeon: fix driver initialization order so radeon kms can be builtin TTM need to be initialized before radeon if KMS is enabled otherwise the kernel will crash hard. Signed-off-by: Jerome Glisse Signed-off-by: Dave Airlie --- drivers/gpu/drm/Makefile | 2 +- drivers/gpu/drm/radeon/radeon_drv.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index 4e89ab08b7b..fe23f29f7cb 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -16,6 +16,7 @@ drm-y := drm_auth.o drm_bufs.o drm_cache.o \ drm-$(CONFIG_COMPAT) += drm_ioc32.o obj-$(CONFIG_DRM) += drm.o +obj-$(CONFIG_DRM_TTM) += ttm/ obj-$(CONFIG_DRM_TDFX) += tdfx/ obj-$(CONFIG_DRM_R128) += r128/ obj-$(CONFIG_DRM_RADEON)+= radeon/ @@ -26,4 +27,3 @@ obj-$(CONFIG_DRM_I915) += i915/ obj-$(CONFIG_DRM_SIS) += sis/ obj-$(CONFIG_DRM_SAVAGE)+= savage/ obj-$(CONFIG_DRM_VIA) +=via/ -obj-$(CONFIG_DRM_TTM) += ttm/ diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index 09c9fb9f621..84ba69f4878 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -345,7 +345,7 @@ static void __exit radeon_exit(void) drm_exit(driver); } -late_initcall(radeon_init); +module_init(radeon_init); module_exit(radeon_exit); MODULE_AUTHOR(DRIVER_AUTHOR); -- cgit v1.2.3 From 8b169b5f1f46da8ece1ce7304cda7155fffe3892 Mon Sep 17 00:00:00 2001 From: Huang Weiyi Date: Wed, 24 Jun 2009 16:31:50 +1000 Subject: drm: remove unused #include 's Remove unused #include ('s) in drivers/gpu/drm/ttm/ttm_bo_util.c drivers/gpu/drm/ttm/ttm_bo_vm.c drivers/gpu/drm/ttm/ttm_tt.c Signed-off-by: Huang Weiyi Signed-off-by: Dave Airlie --- drivers/gpu/drm/ttm/ttm_bo_util.c | 1 - drivers/gpu/drm/ttm/ttm_bo_vm.c | 1 - drivers/gpu/drm/ttm/ttm_tt.c | 1 - 3 files changed, 3 deletions(-) diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c index 517c8455963..bdec583901e 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -34,7 +34,6 @@ #include #include #include -#include #include void ttm_bo_free_old_node(struct ttm_buffer_object *bo) diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c index 27b146c54fb..40b75032ea4 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_vm.c +++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c @@ -32,7 +32,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c index 0331fa74cd3..75dc8bd2459 100644 --- a/drivers/gpu/drm/ttm/ttm_tt.c +++ b/drivers/gpu/drm/ttm/ttm_tt.c @@ -28,7 +28,6 @@ * Authors: Thomas Hellstrom */ -#include #include #include #include -- cgit v1.2.3 From ffc36c7610731115c77700dcc53901920361c235 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 23 Jun 2009 03:43:00 -0700 Subject: ide: fix handling of unexpected IRQs vs request_irq() Add ide_host_enable_irqs() helper and use it in ide_host_register() before registering ports. Then remove no longer needed IRQ unmasking from in init_irq(). This should fix the problem with "screaming" shared IRQ on the first port (after request_irq() call while we have the unexpected IRQ pending on the second port) which was uncovered by my rework of the serialized interfaces support. Reported-by: Frans Pop Tested-by: Frans Pop Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: David S. Miller --- drivers/ide/ide-probe.c | 23 ++++++++++++++++++++--- 1 file changed, 20 insertions(+), 3 deletions(-) diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 51af4eea0d3..1bb106f6221 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -818,6 +818,24 @@ static int ide_port_setup_devices(ide_hwif_t *hwif) return j; } +static void ide_host_enable_irqs(struct ide_host *host) +{ + ide_hwif_t *hwif; + int i; + + ide_host_for_each_port(i, hwif, host) { + if (hwif == NULL) + continue; + + /* clear any pending IRQs */ + hwif->tp_ops->read_status(hwif); + + /* unmask IRQs */ + if (hwif->io_ports.ctl_addr) + hwif->tp_ops->write_devctl(hwif, ATA_DEVCTL_OBS); + } +} + /* * This routine sets up the IRQ for an IDE interface. */ @@ -831,9 +849,6 @@ static int init_irq (ide_hwif_t *hwif) if (irq_handler == NULL) irq_handler = ide_intr; - if (io_ports->ctl_addr) - hwif->tp_ops->write_devctl(hwif, ATA_DEVCTL_OBS); - if (request_irq(hwif->irq, irq_handler, sa, hwif->name, hwif)) goto out_up; @@ -1404,6 +1419,8 @@ int ide_host_register(struct ide_host *host, const struct ide_port_info *d, ide_port_tune_devices(hwif); } + ide_host_enable_irqs(host); + ide_host_for_each_port(i, hwif, host) { if (hwif == NULL) continue; -- cgit v1.2.3 From af054ed0018f0a69f8ea6f7546cbf34385edf13b Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 23 Jun 2009 16:01:06 -0700 Subject: ide-cd: Don't warn on bogus block size unless it actually matters. Frans Pop reported that his CDROM drive reports a blocksize of 2352, and this causes new warnings due to commit e8e7b9eb11c34ee18bde8b7011af41938d1ad667 ("ide-cd: fix oops when using growisofs"). What we're trying to do is make sure that "blocklen >> SECTOR_BITS" is something the block layer won't choke on. And for Frans' case "2352 >> SECTOR_BITS" is equal to "2048 >> SECTOR_BITS", and thats "4". So warning in this case gives no real benefit. Reported-by: Frans Pop Tested-by: Frans Pop Signed-off-by: David S. Miller --- drivers/ide/ide-cd.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 4a19686fcfe..a9a1bfb14e7 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -876,9 +876,12 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, return stat; /* - * Sanity check the given block size + * Sanity check the given block size, in so far as making + * sure the sectors_per_frame we give to the caller won't + * end up being bogus. */ blocklen = be32_to_cpu(capbuf.blocklen); + blocklen = (blocklen >> SECTOR_BITS) << SECTOR_BITS; switch (blocklen) { case 512: case 1024: -- cgit v1.2.3 From d9ae62433e46909fc9e7d97ce74202c2851667b8 Mon Sep 17 00:00:00 2001 From: Frans Pop Date: Tue, 23 Jun 2009 16:02:58 -0700 Subject: ide-cd: Improve "weird block size" error message Currently the error gets repeated too frequently, for example each time HAL polls the device when a disc is present. Avoid that by using printk_once instead of printk. Also join the error and corrective action messages into a single line. Signed-off-by: Frans Pop Acked-by: Borislav Petkov Signed-off-by: David S. Miller --- drivers/ide/ide-cd.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index a9a1bfb14e7..f0ede5953af 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -889,10 +889,9 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, case 4096: break; default: - printk(KERN_ERR PFX "%s: weird block size %u\n", + printk_once(KERN_ERR PFX "%s: weird block size %u; " + "setting default block size to 2048\n", drive->name, blocklen); - printk(KERN_ERR PFX "%s: default to 2kb block size\n", - drive->name); blocklen = 2048; break; } -- cgit v1.2.3 From 346c17a6cf60375323adfaa4b8a9d841049f890e Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Mon, 22 Jun 2009 07:38:26 +0000 Subject: ide: relax DMA info validity checking There are some broken devices that report multiple DMA xfer modes enabled at once (ATA spec doesn't allow it) but otherwise work fine with DMA so just delete ide_id_dma_bug(). [ As discovered by detective work by Frans and Bart, due to how handling of the ID block was handled before commit c419993 ("ide-iops: only clear DMA words on setting DMA mode") this check was always seeing zeros in the fields or other similar garbage. Therefore this check wasn't actually checking anything. Now that the tests actually check the real bits, all we see are devices that trigger the check yet work perfectly fine, therefore killing this useless check is the best thing to do. -DaveM ] Reported-by: Frans Pop Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: David S. Miller --- drivers/ide/ide-dma.c | 21 --------------------- drivers/ide/ide-iops.c | 3 --- include/linux/ide.h | 2 -- 3 files changed, 26 deletions(-) diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index 219e6fb78dc..ee58c88dee5 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -361,9 +361,6 @@ static int ide_tune_dma(ide_drive_t *drive) if (__ide_dma_bad_drive(drive)) return 0; - if (ide_id_dma_bug(drive)) - return 0; - if (hwif->host_flags & IDE_HFLAG_TRUST_BIOS_FOR_DMA) return config_drive_for_dma(drive); @@ -394,24 +391,6 @@ static int ide_dma_check(ide_drive_t *drive) return -1; } -int ide_id_dma_bug(ide_drive_t *drive) -{ - u16 *id = drive->id; - - if (id[ATA_ID_FIELD_VALID] & 4) { - if ((id[ATA_ID_UDMA_MODES] >> 8) && - (id[ATA_ID_MWDMA_MODES] >> 8)) - goto err_out; - } else if ((id[ATA_ID_MWDMA_MODES] >> 8) && - (id[ATA_ID_SWDMA_MODES] >> 8)) - goto err_out; - - return 0; -err_out: - printk(KERN_ERR "%s: bad DMA info in identify block\n", drive->name); - return 1; -} - int ide_set_dma(ide_drive_t *drive) { int rc; diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index fa047150a1c..917186ec496 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -329,9 +329,6 @@ int ide_driveid_update(ide_drive_t *drive) kfree(id); - if ((drive->dev_flags & IDE_DFLAG_USING_DMA) && ide_id_dma_bug(drive)) - ide_dma_off(drive); - return 1; out_err: if (rc == 2) diff --git a/include/linux/ide.h b/include/linux/ide.h index 95c6e00a72e..cf1f3888067 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -1361,7 +1361,6 @@ int ide_in_drive_list(u16 *, const struct drive_list_entry *); #ifdef CONFIG_BLK_DEV_IDEDMA int ide_dma_good_drive(ide_drive_t *); int __ide_dma_bad_drive(ide_drive_t *); -int ide_id_dma_bug(ide_drive_t *); u8 ide_find_dma_mode(ide_drive_t *, u8); @@ -1402,7 +1401,6 @@ void ide_dma_lost_irq(ide_drive_t *); ide_startstop_t ide_dma_timeout_retry(ide_drive_t *, int); #else -static inline int ide_id_dma_bug(ide_drive_t *drive) { return 0; } static inline u8 ide_find_dma_mode(ide_drive_t *drive, u8 speed) { return 0; } static inline u8 ide_max_dma_mode(ide_drive_t *drive) { return 0; } static inline void ide_dma_off_quietly(ide_drive_t *drive) { ; } -- cgit v1.2.3 From ba9413bd284e79ea43b0ae406a7a29526aaf82b3 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 23 Jun 2009 16:11:10 -0700 Subject: ide: add QUANTUM FIREBALLct20 30 with firmware APL.090 to ivb_list[] Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: David S. Miller --- drivers/ide/ide-iops.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index 917186ec496..2892b242bbe 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -210,6 +210,7 @@ EXPORT_SYMBOL_GPL(ide_in_drive_list); */ static const struct drive_list_entry ivb_list[] = { { "QUANTUM FIREBALLlct10 05" , "A03.0900" }, + { "QUANTUM FIREBALLlct20 30" , "APL.0900" }, { "TSSTcorp CDDVDW SH-S202J" , "SB00" }, { "TSSTcorp CDDVDW SH-S202J" , "SB01" }, { "TSSTcorp CDDVDW SH-S202N" , "SB00" }, -- cgit v1.2.3 From a1317f714af7aed60ddc182d0122477cbe36ee9b Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 23 Jun 2009 23:52:17 -0700 Subject: ide: improve handling of Power Management requests Make hwif->rq point to PM request during PM sequence and do not allow any other types of requests to slip in (the old comment was never correct as there should be no such requests generated during PM sequence). Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: David S. Miller --- drivers/ide/ide-io.c | 54 +++++++++++++++++++++------------------------------- 1 file changed, 22 insertions(+), 32 deletions(-) diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 1059f809b80..93b7886a2d6 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -476,10 +476,14 @@ void do_ide_request(struct request_queue *q) if (!ide_lock_port(hwif)) { ide_hwif_t *prev_port; - - WARN_ON_ONCE(hwif->rq); repeat: prev_port = hwif->host->cur_port; + + if (drive->dev_flags & IDE_DFLAG_BLOCKED) + rq = hwif->rq; + else + WARN_ON_ONCE(hwif->rq); + if (drive->dev_flags & IDE_DFLAG_SLEEPING && time_after(drive->sleep, jiffies)) { ide_unlock_port(hwif); @@ -506,43 +510,29 @@ repeat: hwif->cur_dev = drive; drive->dev_flags &= ~(IDE_DFLAG_SLEEPING | IDE_DFLAG_PARKED); - spin_unlock_irq(&hwif->lock); - spin_lock_irq(q->queue_lock); - /* - * we know that the queue isn't empty, but this can happen - * if the q->prep_rq_fn() decides to kill a request - */ - if (!rq) + if (rq == NULL) { + spin_unlock_irq(&hwif->lock); + spin_lock_irq(q->queue_lock); + /* + * we know that the queue isn't empty, but this can + * happen if ->prep_rq_fn() decides to kill a request + */ rq = blk_fetch_request(drive->queue); + spin_unlock_irq(q->queue_lock); + spin_lock_irq(&hwif->lock); - spin_unlock_irq(q->queue_lock); - spin_lock_irq(&hwif->lock); - - if (!rq) { - ide_unlock_port(hwif); - goto out; + if (rq == NULL) { + ide_unlock_port(hwif); + goto out; + } } /* * Sanity: don't accept a request that isn't a PM request - * if we are currently power managed. This is very important as - * blk_stop_queue() doesn't prevent the blk_fetch_request() - * above to return us whatever is in the queue. Since we call - * ide_do_request() ourselves, we end up taking requests while - * the queue is blocked... - * - * We let requests forced at head of queue with ide-preempt - * though. I hope that doesn't happen too much, hopefully not - * unless the subdriver triggers such a thing in its own PM - * state machine. + * if we are currently power managed. */ - if ((drive->dev_flags & IDE_DFLAG_BLOCKED) && - blk_pm_request(rq) == 0 && - (rq->cmd_flags & REQ_PREEMPT) == 0) { - /* there should be no pending command at this point */ - ide_unlock_port(hwif); - goto plug_device; - } + BUG_ON((drive->dev_flags & IDE_DFLAG_BLOCKED) && + blk_pm_request(rq) == 0); hwif->rq = rq; -- cgit v1.2.3 From f7679dabfaf69840b000d238a020cee7157aca17 Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Mon, 22 Jun 2009 18:42:33 +0200 Subject: perf_counter tools: Fix strbuf_fread() error path handling MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit size_t res cannot be less than 0 - fread returns 0 on error. [ Updated by: René Scharfe ] Reported-by: Ingo Molnar Signed-off-by: Roel Kluin Cc: Andrew Morton Cc: Junio C Hamano LKML-Reference: <4A3FB479.2090902@lsrfire.ath.cx> Signed-off-by: Ingo Molnar --- tools/perf/util/strbuf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/util/strbuf.c b/tools/perf/util/strbuf.c index eaba0930680..464e7ca898c 100644 --- a/tools/perf/util/strbuf.c +++ b/tools/perf/util/strbuf.c @@ -259,7 +259,7 @@ size_t strbuf_fread(struct strbuf *sb, size_t size, FILE *f) res = fread(sb->buf + sb->len, 1, size, f); if (res > 0) strbuf_setlen(sb, sb->len + res); - else if (res < 0 && oldalloc == 0) + else if (oldalloc == 0) strbuf_release(sb); return res; } -- cgit v1.2.3 From c14dab5c0782ef632742963a66276a195418a63c Mon Sep 17 00:00:00 2001 From: Yong Wang Date: Wed, 24 Jun 2009 10:13:24 +0800 Subject: perf_counter, x86: Set global control MSR correctly Previous code made an assumption that the power on value of global control MSR has enabled all fixed and general purpose counters properly. However, this is not the case for certain Intel processors, such as Atom - and it might also be firmware dependent. Each enable bit in IA32_PERF_GLOBAL_CTRL is AND'ed with the enable bits for all privilege levels in the respective IA32_PERFEVTSELx or IA32_PERF_FIXED_CTR_CTRL MSRs to start/stop the counting of respective counters. Counting is enabled if the AND'ed results is true; counting is disabled when the result is false. The end result is that all fixed counters are always disabled on Atom processors because the assumption is just invalid. Fix this by not initializing the ctrl-mask out of the global MSR, but setting it to perf_counter_mask. Reported-by: Stephane Eranian Signed-off-by: Yong Wang Cc: Arjan van de Ven Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras LKML-Reference: <20090624021324.GA2788@ywang-moblin2.bj.intel.com> Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/perf_counter.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c index 22eb3a1d4f9..a310d19faca 100644 --- a/arch/x86/kernel/cpu/perf_counter.c +++ b/arch/x86/kernel/cpu/perf_counter.c @@ -969,13 +969,6 @@ fixed_mode_idx(struct perf_counter *counter, struct hw_perf_counter *hwc) if (!x86_pmu.num_counters_fixed) return -1; - /* - * Quirk, IA32_FIXED_CTRs do not work on current Atom processors: - */ - if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL && - boot_cpu_data.x86_model == 28) - return -1; - event = hwc->config & ARCH_PERFMON_EVENT_MASK; if (unlikely(event == x86_pmu.event_map(PERF_COUNT_HW_INSTRUCTIONS))) @@ -1428,8 +1421,6 @@ static int intel_pmu_init(void) */ x86_pmu.num_counters_fixed = max((int)edx.split.num_counters_fixed, 3); - rdmsrl(MSR_CORE_PERF_GLOBAL_CTRL, x86_pmu.intel_ctrl); - /* * Install the hw-cache-events table: */ @@ -1514,6 +1505,7 @@ void __init init_hw_perf_counters(void) perf_counter_mask |= ((1LL << x86_pmu.num_counters_fixed)-1) << X86_PMC_IDX_FIXED; + x86_pmu.intel_ctrl = perf_counter_mask; perf_counters_lapic_init(); register_die_notifier(&perf_counter_nmi_notifier); -- cgit v1.2.3 From e1c7e2a6e67fe9db19dd15e71614526a31b5fdb1 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Wed, 24 Jun 2009 09:52:29 +0800 Subject: tracing/events: Don't increment @pos in s_start() While testing syscall tracepoints posted by Jason, I found 3 entries were missing when reading available_events. The output size of available_events is < 4 pages, which means we lost 1 entry per page. The cause is, it's wrong to increment @pos in s_start(). Actually there's another bug here -- reading avaiable_events/set_events can race with module unload: # cat available_events | s_start() | s_stop() | | # rmmod foo.ko s_start() | call = list_entry(m->private) | @call might be freed and accessing it will lead to crash. Reviewed-by: Liming Wang Signed-off-by: Li Zefan Cc: Steven Rostedt Cc: Frederic Weisbecker LKML-Reference: <4A4186DD.6090405@cn.fujitsu.com> Signed-off-by: Ingo Molnar --- kernel/trace/trace_events.c | 28 ++++++++++++++++++++++------ 1 file changed, 22 insertions(+), 6 deletions(-) diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c index aa08be69a1b..53c8fd376a8 100644 --- a/kernel/trace/trace_events.c +++ b/kernel/trace/trace_events.c @@ -300,10 +300,18 @@ t_next(struct seq_file *m, void *v, loff_t *pos) static void *t_start(struct seq_file *m, loff_t *pos) { + struct ftrace_event_call *call = NULL; + loff_t l; + mutex_lock(&event_mutex); - if (*pos == 0) - m->private = ftrace_events.next; - return t_next(m, NULL, pos); + + m->private = ftrace_events.next; + for (l = 0; l <= *pos; ) { + call = t_next(m, NULL, &l); + if (!call) + break; + } + return call; } static void * @@ -332,10 +340,18 @@ s_next(struct seq_file *m, void *v, loff_t *pos) static void *s_start(struct seq_file *m, loff_t *pos) { + struct ftrace_event_call *call = NULL; + loff_t l; + mutex_lock(&event_mutex); - if (*pos == 0) - m->private = ftrace_events.next; - return s_next(m, NULL, pos); + + m->private = ftrace_events.next; + for (l = 0; l <= *pos; ) { + call = s_next(m, NULL, &l); + if (!call) + break; + } + return call; } static int t_show(struct seq_file *m, void *v) -- cgit v1.2.3 From c8961ec6da22ea010bf4470a8e0fb3fdad0f11c4 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Wed, 24 Jun 2009 09:52:58 +0800 Subject: tracing_bprintk: Don't increment @pos in t_start() It's wrong to increment @pos in t_start(), otherwise we'll lose some entries when reading printk_formats, if the output is larger than PAGE_SIZE. Reported-by: Lai Jiangshan Reviewed-by: Liming Wang Signed-off-by: Li Zefan Cc: Steven Rostedt Cc: Frederic Weisbecker LKML-Reference: <4A4186FA.1020106@cn.fujitsu.com> Signed-off-by: Ingo Molnar --- kernel/trace/trace_printk.c | 26 ++++++-------------------- 1 file changed, 6 insertions(+), 20 deletions(-) diff --git a/kernel/trace/trace_printk.c b/kernel/trace/trace_printk.c index 9bece9687b6..7b627811082 100644 --- a/kernel/trace/trace_printk.c +++ b/kernel/trace/trace_printk.c @@ -155,25 +155,19 @@ int __ftrace_vprintk(unsigned long ip, const char *fmt, va_list ap) EXPORT_SYMBOL_GPL(__ftrace_vprintk); static void * -t_next(struct seq_file *m, void *v, loff_t *pos) +t_start(struct seq_file *m, loff_t *pos) { - const char **fmt = m->private; - const char **next = fmt; - - (*pos)++; + const char **fmt = __start___trace_bprintk_fmt + *pos; if ((unsigned long)fmt >= (unsigned long)__stop___trace_bprintk_fmt) return NULL; - - next = fmt; - m->private = ++next; - return fmt; } -static void *t_start(struct seq_file *m, loff_t *pos) +static void *t_next(struct seq_file *m, void * v, loff_t *pos) { - return t_next(m, NULL, pos); + (*pos)++; + return t_start(m, pos); } static int t_show(struct seq_file *m, void *v) @@ -224,15 +218,7 @@ static const struct seq_operations show_format_seq_ops = { static int ftrace_formats_open(struct inode *inode, struct file *file) { - int ret; - - ret = seq_open(file, &show_format_seq_ops); - if (!ret) { - struct seq_file *m = file->private_data; - - m->private = __start___trace_bprintk_fmt; - } - return ret; + return seq_open(file, &show_format_seq_ops); } static const struct file_operations ftrace_formats_fops = { -- cgit v1.2.3 From 2961bf345fd1b736c3db46cad0f69855f67fbe9c Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Wed, 24 Jun 2009 09:53:26 +0800 Subject: trace_stat: Don't increment @pos in seq start() It's wrong to increment @pos in stat_seq_start(). It causes some stat entries lost when reading stat file, if the output of the file is larger than PAGE_SIZE. Reviewed-by: Liming Wang Signed-off-by: Li Zefan Cc: Steven Rostedt Cc: Frederic Weisbecker LKML-Reference: <4A418716.90209@cn.fujitsu.com> Signed-off-by: Ingo Molnar --- kernel/trace/trace_stat.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/kernel/trace/trace_stat.c b/kernel/trace/trace_stat.c index c00643733f4..e66f5e49334 100644 --- a/kernel/trace/trace_stat.c +++ b/kernel/trace/trace_stat.c @@ -199,17 +199,13 @@ static void *stat_seq_start(struct seq_file *s, loff_t *pos) mutex_lock(&session->stat_mutex); /* If we are in the beginning of the file, print the headers */ - if (!*pos && session->ts->stat_headers) { - (*pos)++; + if (!*pos && session->ts->stat_headers) return SEQ_START_TOKEN; - } node = rb_first(&session->stat_root); for (i = 0; node && i < *pos; i++) node = rb_next(node); - (*pos)++; - return node; } -- cgit v1.2.3 From f129e965bef40c6153e4fe505f1e408286213424 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Wed, 24 Jun 2009 09:53:44 +0800 Subject: tracing: Reset iterator in t_start() The iterator is m->private, but it's not reset to trace_types in t_start(). If the output is larger than PAGE_SIZE and t_start() is called the 2nd time, things will go wrong. Reviewed-by: Liming Wang Signed-off-by: Li Zefan Cc: Steven Rostedt Cc: Frederic Weisbecker LKML-Reference: <4A418728.5020506@cn.fujitsu.com> Signed-off-by: Ingo Molnar --- kernel/trace/trace.c | 18 ++++-------------- 1 file changed, 4 insertions(+), 14 deletions(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 076fa6f0ee4..3bb31006b5c 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -2053,25 +2053,23 @@ static int tracing_open(struct inode *inode, struct file *file) static void * t_next(struct seq_file *m, void *v, loff_t *pos) { - struct tracer *t = m->private; + struct tracer *t = v; (*pos)++; if (t) t = t->next; - m->private = t; - return t; } static void *t_start(struct seq_file *m, loff_t *pos) { - struct tracer *t = m->private; + struct tracer *t; loff_t l = 0; mutex_lock(&trace_types_lock); - for (; t && l < *pos; t = t_next(m, t, &l)) + for (t = trace_types; t && l < *pos; t = t_next(m, t, &l)) ; return t; @@ -2107,18 +2105,10 @@ static struct seq_operations show_traces_seq_ops = { static int show_traces_open(struct inode *inode, struct file *file) { - int ret; - if (tracing_disabled) return -ENODEV; - ret = seq_open(file, &show_traces_seq_ops); - if (!ret) { - struct seq_file *m = file->private_data; - m->private = trace_types; - } - - return ret; + return seq_open(file, &show_traces_seq_ops); } static ssize_t -- cgit v1.2.3 From 85951842a1020669f0a9eb0f0d1853b41341f097 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Wed, 24 Jun 2009 09:54:00 +0800 Subject: ftrace: Don't increment @pos in g_start() It's wrong to increment @pos in g_start(). It causes some entries lost when reading set_graph_function, if the output of the file is larger than PAGE_SIZE. Reviewed-by: Liming Wang Signed-off-by: Li Zefan Cc: Steven Rostedt Cc: Frederic Weisbecker LKML-Reference: <4A418738.7090401@cn.fujitsu.com> Signed-off-by: Ingo Molnar --- kernel/trace/ftrace.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 3718d55fb4c..cde74b9973b 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -2500,32 +2500,31 @@ int ftrace_graph_count; unsigned long ftrace_graph_funcs[FTRACE_GRAPH_MAX_FUNCS] __read_mostly; static void * -g_next(struct seq_file *m, void *v, loff_t *pos) +__g_next(struct seq_file *m, loff_t *pos) { unsigned long *array = m->private; - int index = *pos; - - (*pos)++; - if (index >= ftrace_graph_count) + if (*pos >= ftrace_graph_count) return NULL; + return &array[*pos]; +} - return &array[index]; +static void * +g_next(struct seq_file *m, void *v, loff_t *pos) +{ + (*pos)++; + return __g_next(m, pos); } static void *g_start(struct seq_file *m, loff_t *pos) { - void *p = NULL; - mutex_lock(&graph_lock); /* Nothing, tell g_show to print all functions are enabled */ if (!ftrace_graph_count && !*pos) return (void *)1; - p = g_next(m, p, pos); - - return p; + return __g_next(m, pos); } static void g_stop(struct seq_file *m, void *p) -- cgit v1.2.3 From 694ce0a544fba37a60025a6803ee6265be8a2a22 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Wed, 24 Jun 2009 09:54:19 +0800 Subject: ftrace: Don't manipulate @pos in t_start() It's rather confusing that in t_start(), in some cases @pos is incremented, and in some cases it's decremented and then incremented. This patch rewrites t_start() in a much more general way. Thus we fix a bug that if ftrace_filtered == 1, functions have tracer hooks won't be printed, because the branch is always unreachable: static void *t_start(...) { ... if (!p) return t_hash_start(m, pos); return p; } Before: # echo 'sys_open' > /mnt/tracing/set_ftrace_filter # echo 'sys_write:traceon:4' >> /mnt/tracing/set_ftrace_filter sys_open After: # echo 'sys_open' > /mnt/tracing/set_ftrace_filter # echo 'sys_write:traceon:4' >> /mnt/tracing/set_ftrace_filter sys_open sys_write:traceon:count=4 Reviewed-by: Liming Wang Signed-off-by: Li Zefan Cc: Steven Rostedt Cc: Frederic Weisbecker LKML-Reference: <4A41874B.4090507@cn.fujitsu.com> Signed-off-by: Ingo Molnar --- kernel/trace/ftrace.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index cde74b9973b..dc810208edd 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -1467,8 +1467,6 @@ t_next(struct seq_file *m, void *v, loff_t *pos) iter->pg = iter->pg->next; iter->idx = 0; goto retry; - } else { - iter->idx = -1; } } else { rec = &iter->pg->records[iter->idx++]; @@ -1497,6 +1495,7 @@ static void *t_start(struct seq_file *m, loff_t *pos) { struct ftrace_iterator *iter = m->private; void *p = NULL; + loff_t l; mutex_lock(&ftrace_lock); /* @@ -1508,23 +1507,21 @@ static void *t_start(struct seq_file *m, loff_t *pos) if (*pos > 0) return t_hash_start(m, pos); iter->flags |= FTRACE_ITER_PRINTALL; - (*pos)++; return iter; } if (iter->flags & FTRACE_ITER_HASH) return t_hash_start(m, pos); - if (*pos > 0) { - if (iter->idx < 0) - return p; - (*pos)--; - iter->idx--; + iter->pg = ftrace_pages_start; + iter->idx = 0; + for (l = 0; l <= *pos; ) { + p = t_next(m, p, &l); + if (!p) + break; } - p = t_next(m, p, pos); - - if (!p) + if (!p && iter->flags & FTRACE_ITER_FILTER) return t_hash_start(m, pos); return p; -- cgit v1.2.3 From d82d62444f87e5993af2fa82ed636b2206e052ea Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Wed, 24 Jun 2009 09:54:54 +0800 Subject: ftrace: Fix t_hash_start() When the output of set_ftrace_filter is larger than PAGE_SIZE, t_hash_start() will be called the 2nd time, and then we start from the head of a hlist, which is wrong and causes some entries to be outputed twice. The worse is, if the hlist is large enough, reading set_ftrace_filter won't stop but in a dead loop. Reviewed-by: Liming Wang Signed-off-by: Li Zefan Cc: Steven Rostedt Cc: Frederic Weisbecker LKML-Reference: <4A41876E.2060407@cn.fujitsu.com> Signed-off-by: Ingo Molnar --- kernel/trace/ftrace.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index dc810208edd..71a52c17214 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -1417,10 +1417,20 @@ static void *t_hash_start(struct seq_file *m, loff_t *pos) { struct ftrace_iterator *iter = m->private; void *p = NULL; + loff_t l; + + if (!(iter->flags & FTRACE_ITER_HASH)) + *pos = 0; iter->flags |= FTRACE_ITER_HASH; - return t_hash_next(m, p, pos); + iter->hidx = 0; + for (l = 0; l <= *pos; ) { + p = t_hash_next(m, p, &l); + if (!p) + break; + } + return p; } static int t_hash_show(struct seq_file *m, void *v) -- cgit v1.2.3 From 507e123151149e578c9aae33eb876c49824da5f8 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Tue, 23 Jun 2009 17:38:15 +0200 Subject: timer stats: Optimize by adding quick check to avoid function calls When the kernel is configured with CONFIG_TIMER_STATS but timer stats are runtime disabled we still get calls to __timer_stats_timer_set_start_info which initializes some fields in the corresponding struct timer_list. So add some quick checks in the the timer stats setup functions to avoid function calls to __timer_stats_timer_set_start_info when timer stats are disabled. In an artificial workload that does nothing but playing ping pong with a single tcp packet via loopback this decreases cpu consumption by 1 - 1.5%. This is part of a modified function trace output on SLES11: perl-2497 [00] 28630647177732388 [+ 125]: sk_reset_timer <-tcp_v4_rcv perl-2497 [00] 28630647177732513 [+ 125]: mod_timer <-sk_reset_timer perl-2497 [00] 28630647177732638 [+ 125]: __timer_stats_timer_set_start_info <-mod_timer perl-2497 [00] 28630647177732763 [+ 125]: __mod_timer <-mod_timer perl-2497 [00] 28630647177732888 [+ 125]: __timer_stats_timer_set_start_info <-__mod_timer perl-2497 [00] 28630647177733013 [+ 93]: lock_timer_base <-__mod_timer Signed-off-by: Heiko Carstens Cc: Andrew Morton Cc: Martin Schwidefsky Cc: Mustafa Mesanovic Cc: Arjan van de Ven LKML-Reference: <20090623153811.GA4641@osiris.boeblingen.de.ibm.com> Signed-off-by: Ingo Molnar --- include/linux/hrtimer.h | 5 +++++ include/linux/timer.h | 4 ++++ kernel/time/timer_stats.c | 16 ++++++++-------- kernel/timer.c | 2 ++ 4 files changed, 19 insertions(+), 8 deletions(-) diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h index 7400900de94..54648e625ef 100644 --- a/include/linux/hrtimer.h +++ b/include/linux/hrtimer.h @@ -21,6 +21,7 @@ #include #include #include +#include struct hrtimer_clock_base; @@ -447,6 +448,8 @@ extern void timer_stats_update_stats(void *timer, pid_t pid, void *startf, static inline void timer_stats_account_hrtimer(struct hrtimer *timer) { + if (likely(!timer->start_pid)) + return; timer_stats_update_stats(timer, timer->start_pid, timer->start_site, timer->function, timer->start_comm, 0); } @@ -456,6 +459,8 @@ extern void __timer_stats_hrtimer_set_start_info(struct hrtimer *timer, static inline void timer_stats_hrtimer_set_start_info(struct hrtimer *timer) { + if (likely(!timer_stats_active)) + return; __timer_stats_hrtimer_set_start_info(timer, __builtin_return_address(0)); } diff --git a/include/linux/timer.h b/include/linux/timer.h index ccf882eed8f..be62ec2ebea 100644 --- a/include/linux/timer.h +++ b/include/linux/timer.h @@ -190,6 +190,8 @@ extern unsigned long get_next_timer_interrupt(unsigned long now); */ #ifdef CONFIG_TIMER_STATS +extern int timer_stats_active; + #define TIMER_STATS_FLAG_DEFERRABLE 0x1 extern void init_timer_stats(void); @@ -203,6 +205,8 @@ extern void __timer_stats_timer_set_start_info(struct timer_list *timer, static inline void timer_stats_timer_set_start_info(struct timer_list *timer) { + if (likely(!timer_stats_active)) + return; __timer_stats_timer_set_start_info(timer, __builtin_return_address(0)); } diff --git a/kernel/time/timer_stats.c b/kernel/time/timer_stats.c index c994530d166..4cde8b9c716 100644 --- a/kernel/time/timer_stats.c +++ b/kernel/time/timer_stats.c @@ -96,7 +96,7 @@ static DEFINE_MUTEX(show_mutex); /* * Collection status, active/inactive: */ -static int __read_mostly active; +int __read_mostly timer_stats_active; /* * Beginning/end timestamps of measurement: @@ -242,7 +242,7 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf, struct entry *entry, input; unsigned long flags; - if (likely(!active)) + if (likely(!timer_stats_active)) return; lock = &per_cpu(lookup_lock, raw_smp_processor_id()); @@ -254,7 +254,7 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf, input.timer_flag = timer_flag; spin_lock_irqsave(lock, flags); - if (!active) + if (!timer_stats_active) goto out_unlock; entry = tstat_lookup(&input, comm); @@ -290,7 +290,7 @@ static int tstats_show(struct seq_file *m, void *v) /* * If still active then calculate up to now: */ - if (active) + if (timer_stats_active) time_stop = ktime_get(); time = ktime_sub(time_stop, time_start); @@ -368,18 +368,18 @@ static ssize_t tstats_write(struct file *file, const char __user *buf, mutex_lock(&show_mutex); switch (ctl[0]) { case '0': - if (active) { - active = 0; + if (timer_stats_active) { + timer_stats_active = 0; time_stop = ktime_get(); sync_access(); } break; case '1': - if (!active) { + if (!timer_stats_active) { reset_entries(); time_start = ktime_get(); smp_mb(); - active = 1; + timer_stats_active = 1; } break; default: diff --git a/kernel/timer.c b/kernel/timer.c index 54d3912f8ca..0b36b9e5cc8 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -380,6 +380,8 @@ static void timer_stats_account_timer(struct timer_list *timer) { unsigned int flag = 0; + if (likely(!timer->start_site)) + return; if (unlikely(tbase_get_deferrable(timer->base))) flag |= TIMER_STATS_FLAG_DEFERRABLE; -- cgit v1.2.3 From 2a13877c5ef3207a2a5c56250742e60808677f90 Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Fri, 10 Apr 2009 07:50:45 -0400 Subject: osdblk: a Linux block device for OSD objects Submitted driver exports a block device of the form /dev/osdblkX, where X is a decimal number. It does that by mounting a stacking block device on top of an osd object. For example, if you create a 2G object on an OSD device, you can then use this module to present that 2G object as a Linux block device. See inside patch for exact documentation. [Sitting at linux-next helped fix proper Kconfig dependency for this driver, thanks to Randy Dunlap] Signed-off-by: Jeff Garzik Signed-off-by: Boaz Harrosh --- drivers/block/Kconfig | 16 ++ drivers/block/Makefile | 1 + drivers/block/osdblk.c | 694 +++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 711 insertions(+) create mode 100644 drivers/block/osdblk.c diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig index bb72ada9f07..1d886e079c5 100644 --- a/drivers/block/Kconfig +++ b/drivers/block/Kconfig @@ -298,6 +298,22 @@ config BLK_DEV_NBD If unsure, say N. +config BLK_DEV_OSD + tristate "OSD object-as-blkdev support" + depends on SCSI_OSD_ULD + ---help--- + Saying Y or M here will allow the exporting of a single SCSI + OSD (object-based storage) object as a Linux block device. + + For example, if you create a 2G object on an OSD device, + you can then use this module to present that 2G object as + a Linux block device. + + To compile this driver as a module, choose M here: the + module will be called osdblk. + + If unsure, say N. + config BLK_DEV_SX8 tristate "Promise SATA SX8 support" depends on PCI diff --git a/drivers/block/Makefile b/drivers/block/Makefile index 7755a5e2a85..cdaa3f8fddf 100644 --- a/drivers/block/Makefile +++ b/drivers/block/Makefile @@ -23,6 +23,7 @@ obj-$(CONFIG_XILINX_SYSACE) += xsysace.o obj-$(CONFIG_CDROM_PKTCDVD) += pktcdvd.o obj-$(CONFIG_MG_DISK) += mg_disk.o obj-$(CONFIG_SUNVDC) += sunvdc.o +obj-$(CONFIG_BLK_DEV_OSD) += osdblk.o obj-$(CONFIG_BLK_DEV_UMEM) += umem.o obj-$(CONFIG_BLK_DEV_NBD) += nbd.o diff --git a/drivers/block/osdblk.c b/drivers/block/osdblk.c new file mode 100644 index 00000000000..3565d0dd123 --- /dev/null +++ b/drivers/block/osdblk.c @@ -0,0 +1,694 @@ + +/* + osdblk.c -- Export a single SCSI OSD object as a Linux block device + + + Copyright 2009 Red Hat, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not, write to + the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + + + Instructions for use + -------------------- + + 1) Map a Linux block device to an existing OSD object. + + In this example, we will use partition id 1234, object id 5678, + OSD device /dev/osd1. + + $ echo "1234 5678 /dev/osd1" > /sys/class/osdblk/add + + + 2) List all active blkdev<->object mappings. + + In this example, we have performed step #1 twice, creating two blkdevs, + mapped to two separate OSD objects. + + $ cat /sys/class/osdblk/list + 0 174 1234 5678 /dev/osd1 + 1 179 1994 897123 /dev/osd0 + + The columns, in order, are: + - blkdev unique id + - blkdev assigned major + - OSD object partition id + - OSD object id + - OSD device + + + 3) Remove an active blkdev<->object mapping. + + In this example, we remove the mapping with blkdev unique id 1. + + $ echo 1 > /sys/class/osdblk/remove + + + NOTE: The actual creation and deletion of OSD objects is outside the scope + of this driver. + + */ + +#include +#include +#include +#include +#include +#include +#include + +#define DRV_NAME "osdblk" +#define PFX DRV_NAME ": " + +/* #define _OSDBLK_DEBUG */ +#ifdef _OSDBLK_DEBUG +#define OSDBLK_DEBUG(fmt, a...) \ + printk(KERN_NOTICE "osdblk @%s:%d: " fmt, __func__, __LINE__, ##a) +#else +#define OSDBLK_DEBUG(fmt, a...) \ + do { if (0) printk(fmt, ##a); } while (0) +#endif + +MODULE_AUTHOR("Jeff Garzik "); +MODULE_DESCRIPTION("block device inside an OSD object osdblk.ko"); +MODULE_LICENSE("GPL"); + +struct osdblk_device; + +enum { + OSDBLK_MINORS_PER_MAJOR = 256, /* max minors per blkdev */ + OSDBLK_MAX_REQ = 32, /* max parallel requests */ + OSDBLK_OP_TIMEOUT = 4 * 60, /* sync OSD req timeout */ +}; + +struct osdblk_request { + struct request *rq; /* blk layer request */ + struct bio *bio; /* cloned bio */ + struct osdblk_device *osdev; /* associated blkdev */ +}; + +struct osdblk_device { + int id; /* blkdev unique id */ + + int major; /* blkdev assigned major */ + struct gendisk *disk; /* blkdev's gendisk and rq */ + struct request_queue *q; + + struct osd_dev *osd; /* associated OSD */ + + char name[32]; /* blkdev name, e.g. osdblk34 */ + + spinlock_t lock; /* queue lock */ + + struct osd_obj_id obj; /* OSD partition, obj id */ + uint8_t obj_cred[OSD_CAP_LEN]; /* OSD cred */ + + struct osdblk_request req[OSDBLK_MAX_REQ]; /* request table */ + + struct list_head node; + + char osd_path[0]; /* OSD device path */ +}; + +static struct class *class_osdblk; /* /sys/class/osdblk */ +static DEFINE_MUTEX(ctl_mutex); /* Serialize open/close/setup/teardown */ +static LIST_HEAD(osdblkdev_list); + +static struct block_device_operations osdblk_bd_ops = { + .owner = THIS_MODULE, +}; + +static const struct osd_attr g_attr_logical_length = ATTR_DEF( + OSD_APAGE_OBJECT_INFORMATION, OSD_ATTR_OI_LOGICAL_LENGTH, 8); + +static void osdblk_make_credential(u8 cred_a[OSD_CAP_LEN], + const struct osd_obj_id *obj) +{ + osd_sec_init_nosec_doall_caps(cred_a, obj, false, true); +} + +/* copied from exofs; move to libosd? */ +/* + * Perform a synchronous OSD operation. copied from exofs; move to libosd? + */ +static int osd_sync_op(struct osd_request *or, int timeout, uint8_t *credential) +{ + int ret; + + or->timeout = timeout; + ret = osd_finalize_request(or, 0, credential, NULL); + if (ret) + return ret; + + ret = osd_execute_request(or); + + /* osd_req_decode_sense(or, ret); */ + return ret; +} + +/* + * Perform an asynchronous OSD operation. copied from exofs; move to libosd? + */ +static int osd_async_op(struct osd_request *or, osd_req_done_fn *async_done, + void *caller_context, u8 *cred) +{ + int ret; + + ret = osd_finalize_request(or, 0, cred, NULL); + if (ret) + return ret; + + ret = osd_execute_request_async(or, async_done, caller_context); + + return ret; +} + +/* copied from exofs; move to libosd? */ +static int extract_attr_from_req(struct osd_request *or, struct osd_attr *attr) +{ + struct osd_attr cur_attr = {.attr_page = 0}; /* start with zeros */ + void *iter = NULL; + int nelem; + + do { + nelem = 1; + osd_req_decode_get_attr_list(or, &cur_attr, &nelem, &iter); + if ((cur_attr.attr_page == attr->attr_page) && + (cur_attr.attr_id == attr->attr_id)) { + attr->len = cur_attr.len; + attr->val_ptr = cur_attr.val_ptr; + return 0; + } + } while (iter); + + return -EIO; +} + +static int osdblk_get_obj_size(struct osdblk_device *osdev, u64 *size_out) +{ + struct osd_request *or; + struct osd_attr attr; + int ret; + + /* start request */ + or = osd_start_request(osdev->osd, GFP_KERNEL); + if (!or) + return -ENOMEM; + + /* create a get-attributes(length) request */ + osd_req_get_attributes(or, &osdev->obj); + + osd_req_add_get_attr_list(or, &g_attr_logical_length, 1); + + /* execute op synchronously */ + ret = osd_sync_op(or, OSDBLK_OP_TIMEOUT, osdev->obj_cred); + if (ret) + goto out; + + /* extract length from returned attribute info */ + attr = g_attr_logical_length; + ret = extract_attr_from_req(or, &attr); + if (ret) + goto out; + + *size_out = get_unaligned_be64(attr.val_ptr); + +out: + osd_end_request(or); + return ret; + +} + +static void osdblk_osd_complete(struct osd_request *or, void *private) +{ + struct osdblk_request *orq = private; + struct osd_sense_info osi; + int ret = osd_req_decode_sense(or, &osi); + + if (ret) { + ret = -EIO; + OSDBLK_DEBUG("osdblk_osd_complete with err=%d\n", ret); + } + + /* complete OSD request */ + osd_end_request(or); + + /* complete request passed to osdblk by block layer */ + __blk_end_request_all(orq->rq, ret); +} + +static void bio_chain_put(struct bio *chain) +{ + struct bio *tmp; + + while (chain) { + tmp = chain; + chain = chain->bi_next; + + bio_put(tmp); + } +} + +static struct bio *bio_chain_clone(struct bio *old_chain, gfp_t gfpmask) +{ + struct bio *tmp, *new_chain = NULL, *tail = NULL; + + while (old_chain) { + tmp = bio_kmalloc(gfpmask, old_chain->bi_max_vecs); + if (!tmp) + goto err_out; + + __bio_clone(tmp, old_chain); + tmp->bi_bdev = NULL; + gfpmask &= ~__GFP_WAIT; + tmp->bi_next = NULL; + + if (!new_chain) + new_chain = tail = tmp; + else { + tail->bi_next = tmp; + tail = tmp; + } + + old_chain = old_chain->bi_next; + } + + return new_chain; + +err_out: + OSDBLK_DEBUG("bio_chain_clone with err\n"); + bio_chain_put(new_chain); + return NULL; +} + +static void osdblk_rq_fn(struct request_queue *q) +{ + struct osdblk_device *osdev = q->queuedata; + + while (1) { + struct request *rq; + struct osdblk_request *orq; + struct osd_request *or; + struct bio *bio; + bool do_write, do_flush; + + /* peek at request from block layer */ + rq = blk_fetch_request(q); + if (!rq) + break; + + /* filter out block requests we don't understand */ + if (!blk_fs_request(rq) && !blk_barrier_rq(rq)) { + blk_end_request_all(rq, 0); + continue; + } + + /* deduce our operation (read, write, flush) */ + /* I wish the block layer simplified cmd_type/cmd_flags/cmd[] + * into a clearly defined set of RPC commands: + * read, write, flush, scsi command, power mgmt req, + * driver-specific, etc. + */ + + do_flush = (rq->special == (void *) 0xdeadbeefUL); + do_write = (rq_data_dir(rq) == WRITE); + + if (!do_flush) { /* osd_flush does not use a bio */ + /* a bio clone to be passed down to OSD request */ + bio = bio_chain_clone(rq->bio, GFP_ATOMIC); + if (!bio) + break; + } else + bio = NULL; + + /* alloc internal OSD request, for OSD command execution */ + or = osd_start_request(osdev->osd, GFP_ATOMIC); + if (!or) { + bio_chain_put(bio); + OSDBLK_DEBUG("osd_start_request with err\n"); + break; + } + + orq = &osdev->req[rq->tag]; + orq->rq = rq; + orq->bio = bio; + orq->osdev = osdev; + + /* init OSD command: flush, write or read */ + if (do_flush) + osd_req_flush_object(or, &osdev->obj, + OSD_CDB_FLUSH_ALL, 0, 0); + else if (do_write) + osd_req_write(or, &osdev->obj, blk_rq_pos(rq) * 512ULL, + bio, blk_rq_bytes(rq)); + else + osd_req_read(or, &osdev->obj, blk_rq_pos(rq) * 512ULL, + bio, blk_rq_bytes(rq)); + + OSDBLK_DEBUG("%s 0x%x bytes at 0x%llx\n", + do_flush ? "flush" : do_write ? + "write" : "read", blk_rq_bytes(rq), + blk_rq_pos(rq) * 512ULL); + + /* begin OSD command execution */ + if (osd_async_op(or, osdblk_osd_complete, orq, + osdev->obj_cred)) { + osd_end_request(or); + blk_requeue_request(q, rq); + bio_chain_put(bio); + OSDBLK_DEBUG("osd_execute_request_async with err\n"); + break; + } + + /* remove the special 'flush' marker, now that the command + * is executing + */ + rq->special = NULL; + } +} + +static void osdblk_prepare_flush(struct request_queue *q, struct request *rq) +{ + /* add driver-specific marker, to indicate that this request + * is a flush command + */ + rq->special = (void *) 0xdeadbeefUL; +} + +static void osdblk_free_disk(struct osdblk_device *osdev) +{ + struct gendisk *disk = osdev->disk; + + if (!disk) + return; + + if (disk->flags & GENHD_FL_UP) + del_gendisk(disk); + if (disk->queue) + blk_cleanup_queue(disk->queue); + put_disk(disk); +} + +static int osdblk_init_disk(struct osdblk_device *osdev) +{ + struct gendisk *disk; + struct request_queue *q; + int rc; + u64 obj_size = 0; + + /* contact OSD, request size info about the object being mapped */ + rc = osdblk_get_obj_size(osdev, &obj_size); + if (rc) + return rc; + + /* create gendisk info */ + disk = alloc_disk(OSDBLK_MINORS_PER_MAJOR); + if (!disk) + return -ENOMEM; + + sprintf(disk->disk_name, DRV_NAME "%d", osdev->id); + disk->major = osdev->major; + disk->first_minor = 0; + disk->fops = &osdblk_bd_ops; + disk->private_data = osdev; + + /* init rq */ + q = blk_init_queue(osdblk_rq_fn, &osdev->lock); + if (!q) { + put_disk(disk); + return -ENOMEM; + } + + /* switch queue to TCQ mode; allocate tag map */ + rc = blk_queue_init_tags(q, OSDBLK_MAX_REQ, NULL); + if (rc) { + blk_cleanup_queue(q); + put_disk(disk); + return rc; + } + + blk_queue_prep_rq(q, blk_queue_start_tag); + blk_queue_ordered(q, QUEUE_ORDERED_DRAIN_FLUSH, osdblk_prepare_flush); + + disk->queue = q; + + q->queuedata = osdev; + + osdev->disk = disk; + osdev->q = q; + + /* finally, announce the disk to the world */ + set_capacity(disk, obj_size / 512ULL); + add_disk(disk); + + printk(KERN_INFO "%s: Added of size 0x%llx\n", + disk->disk_name, (unsigned long long)obj_size); + + return 0; +} + +/******************************************************************** + * /sys/class/osdblk/ + * add map OSD object to blkdev + * remove unmap OSD object + * list show mappings + *******************************************************************/ + +static void class_osdblk_release(struct class *cls) +{ + kfree(cls); +} + +static ssize_t class_osdblk_list(struct class *c, char *data) +{ + int n = 0; + struct list_head *tmp; + + mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING); + + list_for_each(tmp, &osdblkdev_list) { + struct osdblk_device *osdev; + + osdev = list_entry(tmp, struct osdblk_device, node); + + n += sprintf(data+n, "%d %d %llu %llu %s\n", + osdev->id, + osdev->major, + osdev->obj.partition, + osdev->obj.id, + osdev->osd_path); + } + + mutex_unlock(&ctl_mutex); + return n; +} + +static ssize_t class_osdblk_add(struct class *c, const char *buf, size_t count) +{ + struct osdblk_device *osdev; + ssize_t rc; + int irc, new_id = 0; + struct list_head *tmp; + + if (!try_module_get(THIS_MODULE)) + return -ENODEV; + + /* new osdblk_device object */ + osdev = kzalloc(sizeof(*osdev) + strlen(buf) + 1, GFP_KERNEL); + if (!osdev) { + rc = -ENOMEM; + goto err_out_mod; + } + + /* static osdblk_device initialization */ + spin_lock_init(&osdev->lock); + INIT_LIST_HEAD(&osdev->node); + + /* generate unique id: find highest unique id, add one */ + + mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING); + + list_for_each(tmp, &osdblkdev_list) { + struct osdblk_device *osdev; + + osdev = list_entry(tmp, struct osdblk_device, node); + if (osdev->id > new_id) + new_id = osdev->id + 1; + } + + osdev->id = new_id; + + /* add to global list */ + list_add_tail(&osdev->node, &osdblkdev_list); + + mutex_unlock(&ctl_mutex); + + /* parse add command */ + if (sscanf(buf, "%llu %llu %s", &osdev->obj.partition, &osdev->obj.id, + osdev->osd_path) != 3) { + rc = -EINVAL; + goto err_out_slot; + } + + /* initialize rest of new object */ + sprintf(osdev->name, DRV_NAME "%d", osdev->id); + + /* contact requested OSD */ + osdev->osd = osduld_path_lookup(osdev->osd_path); + if (IS_ERR(osdev->osd)) { + rc = PTR_ERR(osdev->osd); + goto err_out_slot; + } + + /* build OSD credential */ + osdblk_make_credential(osdev->obj_cred, &osdev->obj); + + /* register our block device */ + irc = register_blkdev(0, osdev->name); + if (irc < 0) { + rc = irc; + goto err_out_osd; + } + + osdev->major = irc; + + /* set up and announce blkdev mapping */ + rc = osdblk_init_disk(osdev); + if (rc) + goto err_out_blkdev; + + return count; + +err_out_blkdev: + unregister_blkdev(osdev->major, osdev->name); +err_out_osd: + osduld_put_device(osdev->osd); +err_out_slot: + mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING); + list_del_init(&osdev->node); + mutex_unlock(&ctl_mutex); + + kfree(osdev); +err_out_mod: + OSDBLK_DEBUG("Error adding device %s\n", buf); + module_put(THIS_MODULE); + return rc; +} + +static ssize_t class_osdblk_remove(struct class *c, const char *buf, + size_t count) +{ + struct osdblk_device *osdev = NULL; + int target_id, rc; + unsigned long ul; + struct list_head *tmp; + + rc = strict_strtoul(buf, 10, &ul); + if (rc) + return rc; + + /* convert to int; abort if we lost anything in the conversion */ + target_id = (int) ul; + if (target_id != ul) + return -EINVAL; + + /* remove object from list immediately */ + mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING); + + list_for_each(tmp, &osdblkdev_list) { + osdev = list_entry(tmp, struct osdblk_device, node); + if (osdev->id == target_id) { + list_del_init(&osdev->node); + break; + } + osdev = NULL; + } + + mutex_unlock(&ctl_mutex); + + if (!osdev) + return -ENOENT; + + /* clean up and free blkdev and associated OSD connection */ + osdblk_free_disk(osdev); + unregister_blkdev(osdev->major, osdev->name); + osduld_put_device(osdev->osd); + kfree(osdev); + + /* release module ref */ + module_put(THIS_MODULE); + + return count; +} + +static struct class_attribute class_osdblk_attrs[] = { + __ATTR(add, 0200, NULL, class_osdblk_add), + __ATTR(remove, 0200, NULL, class_osdblk_remove), + __ATTR(list, 0444, class_osdblk_list, NULL), + __ATTR_NULL +}; + +static int osdblk_sysfs_init(void) +{ + int ret = 0; + + /* + * create control files in sysfs + * /sys/class/osdblk/... + */ + class_osdblk = kzalloc(sizeof(*class_osdblk), GFP_KERNEL); + if (!class_osdblk) + return -ENOMEM; + + class_osdblk->name = DRV_NAME; + class_osdblk->owner = THIS_MODULE; + class_osdblk->class_release = class_osdblk_release; + class_osdblk->class_attrs = class_osdblk_attrs; + + ret = class_register(class_osdblk); + if (ret) { + kfree(class_osdblk); + class_osdblk = NULL; + printk(PFX "failed to create class osdblk\n"); + return ret; + } + + return 0; +} + +static void osdblk_sysfs_cleanup(void) +{ + if (class_osdblk) + class_destroy(class_osdblk); + class_osdblk = NULL; +} + +static int __init osdblk_init(void) +{ + int rc; + + rc = osdblk_sysfs_init(); + if (rc) + return rc; + + return 0; +} + +static void __exit osdblk_exit(void) +{ + osdblk_sysfs_cleanup(); +} + +module_init(osdblk_init); +module_exit(osdblk_exit); + -- cgit v1.2.3 From bc47df0fa705887242c26c7b040e7cf0170ab1f1 Mon Sep 17 00:00:00 2001 From: Boaz Harrosh Date: Wed, 20 May 2009 18:50:34 +0300 Subject: osdblk: Adjust queue limits to lower device's limits call blk_queue_stack_limits() to copy queue limits from the underline osd scsi_device. This is absolutely needed because osdblk cannot sleep when allocating a lower-request and therefore cannot be bouncing. TODO: Dynamic changes of limits to the lower device queue will not reflect in the upper driver Signed-off-by: Boaz Harrosh --- drivers/block/osdblk.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/block/osdblk.c b/drivers/block/osdblk.c index 3565d0dd123..13c1aee6aa3 100644 --- a/drivers/block/osdblk.c +++ b/drivers/block/osdblk.c @@ -66,6 +66,7 @@ #include #include #include +#include #define DRV_NAME "osdblk" #define PFX DRV_NAME ": " @@ -437,6 +438,12 @@ static int osdblk_init_disk(struct osdblk_device *osdev) return rc; } + /* Set our limits to the lower device limits, because osdblk cannot + * sleep when allocating a lower-request and therefore cannot be + * bouncing. + */ + blk_queue_stack_limits(q, osd_request_queue(osdev->osd)); + blk_queue_prep_rq(q, blk_queue_start_tag); blk_queue_ordered(q, QUEUE_ORDERED_DRAIN_FLUSH, osdblk_prepare_flush); -- cgit v1.2.3 From d7e2f36d9a92284754ed5254562766cb3d61c7ca Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 24 Jun 2009 02:36:17 -0700 Subject: ide cs5520: Initialize second port's interrupt number. In 86ccf37c6acd74cf7e4b7751ee045de19943c5a0 the driver was modified to deal with the removal of the pciirq argument to ide_pci_setup_ports(). But in the conversion only the first port's IRQ gets setup. Inspired by a patch by Bartlomiej Zolnierkiewicz., and with help from Alan Cox. Signed-off-by: David S. Miller --- drivers/ide/cs5520.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/ide/cs5520.c b/drivers/ide/cs5520.c index bd066bb9d61..09f98ed0731 100644 --- a/drivers/ide/cs5520.c +++ b/drivers/ide/cs5520.c @@ -135,6 +135,7 @@ static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_devic ide_pci_setup_ports(dev, d, &hw[0], &hws[0]); hw[0].irq = 14; + hw[1].irq = 15; return ide_host_add(d, hws, 2, NULL); } -- cgit v1.2.3 From 9d612beff5089b89a295a2331883a8ce3fff08c1 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Wed, 24 Jun 2009 17:33:15 +0800 Subject: tracing: Fix trace_buf_size boot option We should be able to specify [KMG] when setting trace_buf_size boot option, as documented in kernel-parameters.txt Signed-off-by: Li Zefan Cc: Steven Rostedt Cc: Frederic Weisbecker LKML-Reference: <4A41F2DB.4020102@cn.fujitsu.com> Signed-off-by: Ingo Molnar --- Documentation/kernel-parameters.txt | 3 ++- kernel/trace/trace.c | 5 ++--- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 92e1ab8178a..d3f41db3ed4 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -2475,7 +2475,8 @@ and is between 256 and 4096 characters. It is defined in the file tp720= [HW,PS2] - trace_buf_size=nn[KMG] [ftrace] will set tracing buffer size. + trace_buf_size=nn[KMG] + [FTRACE] will set tracing buffer size. trix= [HW,OSS] MediaTrix AudioTrix Pro Format: diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 3bb31006b5c..3aa0a0dfdfa 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -284,13 +284,12 @@ void trace_wake_up(void) static int __init set_buf_size(char *str) { unsigned long buf_size; - int ret; if (!str) return 0; - ret = strict_strtoul(str, 0, &buf_size); + buf_size = memparse(str, &str); /* nr_entries can not be zero */ - if (ret < 0 || buf_size == 0) + if (buf_size == 0) return 0; trace_buf_size = buf_size; return 1; -- cgit v1.2.3 From 16d11a829ed197b719723f81d82e7f1a42f5c681 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 24 Jun 2009 14:07:53 +0200 Subject: ALSA: hda - Simplify AD1986A mixer definitions Split mixer element arrays of AD1986A models to several pieces so that each model can share the same mixer arrays. This removes lots of duplicated data. Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_analog.c | 77 ++++++++++++-------------------------------- 1 file changed, 21 insertions(+), 56 deletions(-) diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c index 84cc49ca914..592423c878f 100644 --- a/sound/pci/hda/patch_analog.c +++ b/sound/pci/hda/patch_analog.c @@ -669,39 +669,13 @@ static struct hda_input_mux ad1986a_automic_capture_source = { }, }; -static struct snd_kcontrol_new ad1986a_laptop_eapd_mixers[] = { +static struct snd_kcontrol_new ad1986a_laptop_master_mixers[] = { HDA_BIND_VOL("Master Playback Volume", &ad1986a_laptop_master_vol), HDA_BIND_SW("Master Playback Switch", &ad1986a_laptop_master_sw), - HDA_CODEC_VOLUME("PCM Playback Volume", 0x03, 0x0, HDA_OUTPUT), - HDA_CODEC_MUTE("PCM Playback Switch", 0x03, 0x0, HDA_OUTPUT), - HDA_CODEC_VOLUME("Internal Mic Playback Volume", 0x17, 0, HDA_OUTPUT), - HDA_CODEC_MUTE("Internal Mic Playback Switch", 0x17, 0, HDA_OUTPUT), - HDA_CODEC_VOLUME("Mic Playback Volume", 0x13, 0x0, HDA_OUTPUT), - HDA_CODEC_MUTE("Mic Playback Switch", 0x13, 0x0, HDA_OUTPUT), - HDA_CODEC_VOLUME("Mic Boost", 0x0f, 0x0, HDA_OUTPUT), - HDA_CODEC_VOLUME("Capture Volume", 0x12, 0x0, HDA_OUTPUT), - HDA_CODEC_MUTE("Capture Switch", 0x12, 0x0, HDA_OUTPUT), - { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "Capture Source", - .info = ad198x_mux_enum_info, - .get = ad198x_mux_enum_get, - .put = ad198x_mux_enum_put, - }, - { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "External Amplifier", - .info = ad198x_eapd_info, - .get = ad198x_eapd_get, - .put = ad198x_eapd_put, - .private_value = 0x1b | (1 << 8), /* port-D, inversed */ - }, { } /* end */ }; -static struct snd_kcontrol_new ad1986a_samsung_mixers[] = { - HDA_BIND_VOL("Master Playback Volume", &ad1986a_laptop_master_vol), - HDA_BIND_SW("Master Playback Switch", &ad1986a_laptop_master_sw), +static struct snd_kcontrol_new ad1986a_laptop_eapd_mixers[] = { HDA_CODEC_VOLUME("PCM Playback Volume", 0x03, 0x0, HDA_OUTPUT), HDA_CODEC_MUTE("PCM Playback Switch", 0x03, 0x0, HDA_OUTPUT), HDA_CODEC_VOLUME("Mic Playback Volume", 0x13, 0x0, HDA_OUTPUT), @@ -727,6 +701,12 @@ static struct snd_kcontrol_new ad1986a_samsung_mixers[] = { { } /* end */ }; +static struct snd_kcontrol_new ad1986a_laptop_intmic_mixers[] = { + HDA_CODEC_VOLUME("Internal Mic Playback Volume", 0x17, 0, HDA_OUTPUT), + HDA_CODEC_MUTE("Internal Mic Playback Switch", 0x17, 0, HDA_OUTPUT), + { } /* end */ +}; + /* re-connect the mic boost input according to the jack sensing */ static void ad1986a_automic(struct hda_codec *codec) { @@ -816,7 +796,7 @@ static int ad1986a_hp_master_sw_put(struct snd_kcontrol *kcontrol, return change; } -static struct snd_kcontrol_new ad1986a_laptop_automute_mixers[] = { +static struct snd_kcontrol_new ad1986a_automute_master_mixers[] = { HDA_BIND_VOL("Master Playback Volume", &ad1986a_laptop_master_vol), { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, @@ -826,33 +806,10 @@ static struct snd_kcontrol_new ad1986a_laptop_automute_mixers[] = { .put = ad1986a_hp_master_sw_put, .private_value = HDA_COMPOSE_AMP_VAL(0x1a, 3, 0, HDA_OUTPUT), }, - HDA_CODEC_VOLUME("PCM Playback Volume", 0x03, 0x0, HDA_OUTPUT), - HDA_CODEC_MUTE("PCM Playback Switch", 0x03, 0x0, HDA_OUTPUT), - HDA_CODEC_VOLUME("Internal Mic Playback Volume", 0x17, 0x0, HDA_OUTPUT), - HDA_CODEC_MUTE("Internal Mic Playback Switch", 0x17, 0x0, HDA_OUTPUT), - HDA_CODEC_VOLUME("Mic Playback Volume", 0x13, 0x0, HDA_OUTPUT), - HDA_CODEC_MUTE("Mic Playback Switch", 0x13, 0x0, HDA_OUTPUT), - HDA_CODEC_VOLUME("Mic Boost", 0x0f, 0x0, HDA_OUTPUT), - HDA_CODEC_VOLUME("Capture Volume", 0x12, 0x0, HDA_OUTPUT), - HDA_CODEC_MUTE("Capture Switch", 0x12, 0x0, HDA_OUTPUT), - { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "Capture Source", - .info = ad198x_mux_enum_info, - .get = ad198x_mux_enum_get, - .put = ad198x_mux_enum_put, - }, - { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "External Amplifier", - .info = ad198x_eapd_info, - .get = ad198x_eapd_get, - .put = ad198x_eapd_put, - .private_value = 0x1b | (1 << 8), /* port-D, inversed */ - }, { } /* end */ }; + /* * initialization verbs */ @@ -1111,7 +1068,10 @@ static int patch_ad1986a(struct hda_codec *codec) spec->multiout.dac_nids = ad1986a_laptop_dac_nids; break; case AD1986A_LAPTOP_EAPD: - spec->mixers[0] = ad1986a_laptop_eapd_mixers; + spec->num_mixers = 3; + spec->mixers[0] = ad1986a_laptop_master_mixers; + spec->mixers[1] = ad1986a_laptop_eapd_mixers; + spec->mixers[2] = ad1986a_laptop_intmic_mixers; spec->num_init_verbs = 2; spec->init_verbs[1] = ad1986a_eapd_init_verbs; spec->multiout.max_channels = 2; @@ -1122,7 +1082,9 @@ static int patch_ad1986a(struct hda_codec *codec) spec->input_mux = &ad1986a_laptop_eapd_capture_source; break; case AD1986A_SAMSUNG: - spec->mixers[0] = ad1986a_samsung_mixers; + spec->num_mixers = 2; + spec->mixers[0] = ad1986a_laptop_master_mixers; + spec->mixers[1] = ad1986a_laptop_eapd_mixers; spec->num_init_verbs = 3; spec->init_verbs[1] = ad1986a_eapd_init_verbs; spec->init_verbs[2] = ad1986a_automic_verbs; @@ -1136,7 +1098,10 @@ static int patch_ad1986a(struct hda_codec *codec) codec->patch_ops.init = ad1986a_automic_init; break; case AD1986A_LAPTOP_AUTOMUTE: - spec->mixers[0] = ad1986a_laptop_automute_mixers; + spec->num_mixers = 3; + spec->mixers[0] = ad1986a_automute_master_mixers; + spec->mixers[1] = ad1986a_laptop_eapd_mixers; + spec->mixers[2] = ad1986a_laptop_intmic_mixers; spec->num_init_verbs = 3; spec->init_verbs[1] = ad1986a_eapd_init_verbs; spec->init_verbs[2] = ad1986a_hp_init_verbs; -- cgit v1.2.3 From 6f4b67b8ff707147e14ee71045ab25aa286520f2 Mon Sep 17 00:00:00 2001 From: Shin-ichiro KAWASAKI Date: Sun, 21 Jun 2009 10:56:22 +0000 Subject: clocksource: sh_tmu: Make undefined TCOR behaviour less undefined. Avoid undocumented vague TMU behavior when zero value is set to TCOR. This primarily fixes up issues encountered under qemu with a zero-length period, while the hardware itself is fairly ambivalent one way or the other. Signed-off-by: Shin-ichiro KAWASAKI Acked-by: Magnus Damm Signed-off-by: Paul Mundt --- drivers/clocksource/sh_tmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c index 9ffb05f4095..93c2322feab 100644 --- a/drivers/clocksource/sh_tmu.c +++ b/drivers/clocksource/sh_tmu.c @@ -161,7 +161,7 @@ static void sh_tmu_set_next(struct sh_tmu_priv *p, unsigned long delta, if (periodic) sh_tmu_write(p, TCOR, delta); else - sh_tmu_write(p, TCOR, 0); + sh_tmu_write(p, TCOR, 0xffffffff); sh_tmu_write(p, TCNT, delta); -- cgit v1.2.3 From 03c405ad314d3c4e049b8d04500e54e833d16747 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 24 Jun 2009 14:10:15 +0200 Subject: ALSA: hda - Generalize the pin-detect quirk for Lenovo N100 Add a new flag to ad_spec struct so that the same hack can be used for any other models (if any). This also allows other models to reuse the auto-mute functions. Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_analog.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c index 592423c878f..8c2b23f54f9 100644 --- a/sound/pci/hda/patch_analog.c +++ b/sound/pci/hda/patch_analog.c @@ -72,6 +72,7 @@ struct ad198x_spec { hda_nid_t private_dac_nids[AUTO_CFG_MAX_OUTS]; unsigned int jack_present :1; + unsigned int inv_jack_detect:1; #ifdef CONFIG_SND_HDA_POWER_SAVE struct hda_loopback_check loopback; @@ -756,8 +757,9 @@ static void ad1986a_hp_automute(struct hda_codec *codec) unsigned int present; present = snd_hda_codec_read(codec, 0x1a, 0, AC_VERB_GET_PIN_SENSE, 0); - /* Lenovo N100 seems to report the reversed bit for HP jack-sensing */ - spec->jack_present = !(present & 0x80000000); + spec->jack_present = !!(present & 0x80000000); + if (spec->inv_jack_detect) + spec->jack_present = !spec->jack_present; ad1986a_update_hp(codec); } @@ -1113,6 +1115,10 @@ static int patch_ad1986a(struct hda_codec *codec) spec->input_mux = &ad1986a_laptop_eapd_capture_source; codec->patch_ops.unsol_event = ad1986a_hp_unsol_event; codec->patch_ops.init = ad1986a_hp_init; + /* Lenovo N100 seems to report the reversed bit + * for HP jack-sensing + */ + spec->inv_jack_detect = 1; break; case AD1986A_ULTRA: spec->mixers[0] = ad1986a_laptop_eapd_mixers; -- cgit v1.2.3 From c912e7a58054304575fe88574c776be7e684098e Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 24 Jun 2009 14:14:34 +0200 Subject: ALSA: hda - Fix support for Samsung P50 with AD1986A codec Samsung P50 requires the HP auto-muting unlike other Samsung models. Added a new model=samsung-p50 to support this. Signed-off-by: Takashi Iwai --- Documentation/sound/alsa/HD-Audio-Models.txt | 1 + sound/pci/hda/patch_analog.c | 41 ++++++++++++++++++++++++++++ 2 files changed, 42 insertions(+) diff --git a/Documentation/sound/alsa/HD-Audio-Models.txt b/Documentation/sound/alsa/HD-Audio-Models.txt index 0d8d23581c4..939a3dd5814 100644 --- a/Documentation/sound/alsa/HD-Audio-Models.txt +++ b/Documentation/sound/alsa/HD-Audio-Models.txt @@ -240,6 +240,7 @@ AD1986A laptop-automute 2-channel with EAPD and HP-automute (Lenovo N100) ultra 2-channel with EAPD (Samsung Ultra tablet PC) samsung 2-channel with EAPD (Samsung R65) + samsung-p50 2-channel with HP-automute (Samsung P50) AD1988/AD1988B/AD1989A/AD1989B ============================== diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c index 8c2b23f54f9..1988582d1ab 100644 --- a/sound/pci/hda/patch_analog.c +++ b/sound/pci/hda/patch_analog.c @@ -940,6 +940,27 @@ static struct hda_verb ad1986a_hp_init_verbs[] = { {} }; +static void ad1986a_samsung_p50_unsol_event(struct hda_codec *codec, + unsigned int res) +{ + switch (res >> 26) { + case AD1986A_HP_EVENT: + ad1986a_hp_automute(codec); + break; + case AD1986A_MIC_EVENT: + ad1986a_automic(codec); + break; + } +} + +static int ad1986a_samsung_p50_init(struct hda_codec *codec) +{ + ad198x_init(codec); + ad1986a_hp_automute(codec); + ad1986a_automic(codec); + return 0; +} + /* models */ enum { @@ -950,6 +971,7 @@ enum { AD1986A_LAPTOP_AUTOMUTE, AD1986A_ULTRA, AD1986A_SAMSUNG, + AD1986A_SAMSUNG_P50, AD1986A_MODELS }; @@ -961,6 +983,7 @@ static const char *ad1986a_models[AD1986A_MODELS] = { [AD1986A_LAPTOP_AUTOMUTE] = "laptop-automute", [AD1986A_ULTRA] = "ultra", [AD1986A_SAMSUNG] = "samsung", + [AD1986A_SAMSUNG_P50] = "samsung-p50", }; static struct snd_pci_quirk ad1986a_cfg_tbl[] = { @@ -983,6 +1006,7 @@ static struct snd_pci_quirk ad1986a_cfg_tbl[] = { SND_PCI_QUIRK(0x1179, 0xff40, "Toshiba", AD1986A_LAPTOP_EAPD), SND_PCI_QUIRK(0x144d, 0xb03c, "Samsung R55", AD1986A_3STACK), SND_PCI_QUIRK(0x144d, 0xc01e, "FSC V2060", AD1986A_LAPTOP), + SND_PCI_QUIRK(0x144d, 0xc024, "Samsung P50", AD1986A_SAMSUNG_P50), SND_PCI_QUIRK(0x144d, 0xc027, "Samsung Q1", AD1986A_ULTRA), SND_PCI_QUIRK_MASK(0x144d, 0xff00, 0xc000, "Samsung", AD1986A_SAMSUNG), SND_PCI_QUIRK(0x144d, 0xc504, "Samsung Q35", AD1986A_3STACK), @@ -1099,6 +1123,23 @@ static int patch_ad1986a(struct hda_codec *codec) codec->patch_ops.unsol_event = ad1986a_automic_unsol_event; codec->patch_ops.init = ad1986a_automic_init; break; + case AD1986A_SAMSUNG_P50: + spec->num_mixers = 2; + spec->mixers[0] = ad1986a_automute_master_mixers; + spec->mixers[1] = ad1986a_laptop_eapd_mixers; + spec->num_init_verbs = 4; + spec->init_verbs[1] = ad1986a_eapd_init_verbs; + spec->init_verbs[2] = ad1986a_automic_verbs; + spec->init_verbs[3] = ad1986a_hp_init_verbs; + spec->multiout.max_channels = 2; + spec->multiout.num_dacs = 1; + spec->multiout.dac_nids = ad1986a_laptop_dac_nids; + if (!is_jack_available(codec, 0x25)) + spec->multiout.dig_out_nid = 0; + spec->input_mux = &ad1986a_automic_capture_source; + codec->patch_ops.unsol_event = ad1986a_samsung_p50_unsol_event; + codec->patch_ops.init = ad1986a_samsung_p50_init; + break; case AD1986A_LAPTOP_AUTOMUTE: spec->num_mixers = 3; spec->mixers[0] = ad1986a_automute_master_mixers; -- cgit v1.2.3 From 3d63259583278262d9153316094e315f73ebfcb5 Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Wed, 24 Jun 2009 18:19:34 +0530 Subject: perf stat: Remove dead code Remove dead code and do some code alignment. Signed-off-by: Jaswinder Singh Rajput Cc: Peter Zijlstra LKML-Reference: <1245847774.2681.2.camel@ht.satnam> Signed-off-by: Ingo Molnar --- tools/perf/builtin-stat.c | 44 +++++++++++++------------------------------- 1 file changed, 13 insertions(+), 31 deletions(-) diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 5e04fcc8d07..8420ec58950 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -59,42 +59,27 @@ static struct perf_counter_attr default_attrs[MAX_COUNTERS] = { }; +#define MAX_RUN 100 + static int system_wide = 0; -static int inherit = 1; static int verbose = 0; - -static int fd[MAX_NR_CPUS][MAX_COUNTERS]; - -static int target_pid = -1; static int nr_cpus = 0; -static unsigned int page_size; +static int run_idx = 0; +static int run_count = 1; +static int inherit = 1; static int scale = 1; +static int target_pid = -1; -static const unsigned int default_count[] = { - 1000000, - 1000000, - 10000, - 10000, - 1000000, - 10000, -}; - -#define MAX_RUN 100 - -static int run_count = 1; -static int run_idx = 0; - -static u64 event_res[MAX_RUN][MAX_COUNTERS][3]; -static u64 event_scaled[MAX_RUN][MAX_COUNTERS]; - -//static u64 event_hist[MAX_RUN][MAX_COUNTERS][3]; - +static int fd[MAX_NR_CPUS][MAX_COUNTERS]; static u64 runtime_nsecs[MAX_RUN]; static u64 walltime_nsecs[MAX_RUN]; static u64 runtime_cycles[MAX_RUN]; +static u64 event_res[MAX_RUN][MAX_COUNTERS][3]; +static u64 event_scaled[MAX_RUN][MAX_COUNTERS]; + static u64 event_res_avg[MAX_COUNTERS][3]; static u64 event_res_noise[MAX_COUNTERS][3]; @@ -109,7 +94,6 @@ static u64 walltime_nsecs_noise; static u64 runtime_cycles_avg; static u64 runtime_cycles_noise; - #define ERR_PERF_OPEN \ "Error: counter %d, sys_perf_counter_open() syscall returned with %d (%s)\n" @@ -470,9 +454,9 @@ static const struct option options[] = { OPT_INTEGER('p', "pid", &target_pid, "stat events on existing pid"), OPT_BOOLEAN('a', "all-cpus", &system_wide, - "system-wide collection from all CPUs"), + "system-wide collection from all CPUs"), OPT_BOOLEAN('S', "scale", &scale, - "scale/normalize counters"), + "scale/normalize counters"), OPT_BOOLEAN('v', "verbose", &verbose, "be more verbose (show counter open errors, etc)"), OPT_INTEGER('r', "repeat", &run_count, @@ -484,8 +468,6 @@ int cmd_stat(int argc, const char **argv, const char *prefix) { int status; - page_size = sysconf(_SC_PAGE_SIZE); - memcpy(attrs, default_attrs, sizeof(attrs)); argc = parse_options(argc, argv, options, stat_usage, 0); @@ -515,7 +497,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix) status = 0; for (run_idx = 0; run_idx < run_count; run_idx++) { if (run_count != 1 && verbose) - fprintf(stderr, "[ perf stat: executing run #%d ... ]\n", run_idx+1); + fprintf(stderr, "[ perf stat: executing run #%d ... ]\n", run_idx + 1); status = run_perf_stat(argc, argv); } -- cgit v1.2.3 From f6faac71d502be1c29c81b2f45657662c3b84470 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Tue, 23 Jun 2009 17:24:40 -0700 Subject: rcu: Mark Hierarchical RCU no longer experimental Removes the warnings about Hierarchical RCU being experimental, given that it has gone through almost six months of being the default RCU in mainline for the x86 with very little trouble. This makes hierarchical-RCU bootup look less scary. Signed-off-by: Paul E. McKenney Cc: akpm@linux-foundation.org Cc: niv@us.ibm.com Cc: dvhltc@us.ibm.com Cc: dipankar@in.ibm.com Cc: dhowells@redhat.com Cc: lethal@linux-sh.org Cc: kernel@wantstofly.org Cc: cl@linux-foundation.org Cc: schamp@sgi.com Signed-off-by: Ingo Molnar --- kernel/rcutree.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/kernel/rcutree.c b/kernel/rcutree.c index 0dccfbba6d2..7717b95c202 100644 --- a/kernel/rcutree.c +++ b/kernel/rcutree.c @@ -1533,7 +1533,7 @@ void __init __rcu_init(void) int j; struct rcu_node *rnp; - printk(KERN_WARNING "Experimental hierarchical RCU implementation.\n"); + printk(KERN_INFO "Hierarchical RCU implementation.\n"); #ifdef CONFIG_RCU_CPU_STALL_DETECTOR printk(KERN_INFO "RCU-based detection of stalled CPUs is enabled.\n"); #endif /* #ifdef CONFIG_RCU_CPU_STALL_DETECTOR */ @@ -1546,7 +1546,6 @@ void __init __rcu_init(void) rcu_cpu_notify(&rcu_nb, CPU_UP_PREPARE, (void *)(long)i); /* Register notifier for non-boot CPUs */ register_cpu_notifier(&rcu_nb); - printk(KERN_WARNING "Experimental hierarchical RCU init done.\n"); } module_param(blimit, int, 0); -- cgit v1.2.3 From d94d4adb7dd05b4e25f3c317a1b932ec74272a12 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 24 Jun 2009 22:35:30 +0900 Subject: sh: make set_perf_counter_pending() static inline. Fixes up a recently introduced build error. Reported-by: Kyle McMartin Signed-off-by: Paul Mundt --- arch/sh/include/asm/perf_counter.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/sh/include/asm/perf_counter.h b/arch/sh/include/asm/perf_counter.h index a8153c2aa6f..61c2b40c802 100644 --- a/arch/sh/include/asm/perf_counter.h +++ b/arch/sh/include/asm/perf_counter.h @@ -2,6 +2,6 @@ #define __ASM_SH_PERF_COUNTER_H /* SH only supports software counters through this interface. */ -#define set_perf_counter_pending() do { } while (0) +static inline void set_perf_counter_pending(void) {} #endif /* __ASM_SH_PERF_COUNTER_H */ -- cgit v1.2.3 From 17659c60629618c0aa67eb3cb6a77d2c52486d2e Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Wed, 24 Jun 2009 15:35:15 +0100 Subject: mtd: maps: Remove BUS_ID_SIZE from integrator_flash Signed-off-by: David Woodhouse Tested-by: Catalin Marinas --- drivers/mtd/maps/integrator-flash.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/drivers/mtd/maps/integrator-flash.c b/drivers/mtd/maps/integrator-flash.c index b08a798ee25..2aac41bde8b 100644 --- a/drivers/mtd/maps/integrator-flash.c +++ b/drivers/mtd/maps/integrator-flash.c @@ -42,10 +42,8 @@ #include #include -#define SUBDEV_NAME_SIZE (BUS_ID_SIZE + 2) - struct armflash_subdev_info { - char name[SUBDEV_NAME_SIZE]; + char *name; struct mtd_info *mtd; struct map_info map; struct flash_platform_data *plat; @@ -134,6 +132,8 @@ static void armflash_subdev_remove(struct armflash_subdev_info *subdev) map_destroy(subdev->mtd); if (subdev->map.virt) iounmap(subdev->map.virt); + kfree(subdev->name); + subdev->name = NULL; release_mem_region(subdev->map.phys, subdev->map.size); } @@ -177,16 +177,22 @@ static int armflash_probe(struct platform_device *dev) if (nr == 1) /* No MTD concatenation, just use the default name */ - snprintf(subdev->name, SUBDEV_NAME_SIZE, "%s", - dev_name(&dev->dev)); + subdev->name = kstrdup(dev_name(&dev->dev), GFP_KERNEL); else - snprintf(subdev->name, SUBDEV_NAME_SIZE, "%s-%d", - dev_name(&dev->dev), i); + subdev->name = kasprintf(GFP_KERNEL, "%s-%d", + dev_name(&dev->dev), i); + if (!subdev->name) { + err = -ENOMEM; + break; + } subdev->plat = plat; err = armflash_subdev_probe(subdev, res); - if (err) + if (err) { + kfree(subdev->name); + subdev->name = NULL; break; + } } info->nr_subdev = i; -- cgit v1.2.3 From 9c26f52b900f7207135bafc8789e1a4f5d43e096 Mon Sep 17 00:00:00 2001 From: Cliff Wickman Date: Wed, 24 Jun 2009 09:41:59 -0500 Subject: x86: Fix uv bau sending buffer initialization The initialization of the UV Broadcast Assist Unit's sending buffers was making an invalid assumption about the initialization of an MMR that defines its address. The BIOS will not be providing that MMR. So uv_activation_descriptor_init() should unconditionally set it. Tested on UV simulator. Signed-off-by: Cliff Wickman Cc: # for v2.6.30.x LKML-Reference: Signed-off-by: Ingo Molnar --- arch/x86/kernel/tlb_uv.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c index 124d40c575d..8ccabb8a2f6 100644 --- a/arch/x86/kernel/tlb_uv.c +++ b/arch/x86/kernel/tlb_uv.c @@ -711,7 +711,6 @@ uv_activation_descriptor_init(int node, int pnode) unsigned long pa; unsigned long m; unsigned long n; - unsigned long mmr_image; struct bau_desc *adp; struct bau_desc *ad2; @@ -727,12 +726,8 @@ uv_activation_descriptor_init(int node, int pnode) n = pa >> uv_nshift; m = pa & uv_mmask; - mmr_image = uv_read_global_mmr64(pnode, UVH_LB_BAU_SB_DESCRIPTOR_BASE); - if (mmr_image) { - uv_write_global_mmr64(pnode, (unsigned long) - UVH_LB_BAU_SB_DESCRIPTOR_BASE, - (n << UV_DESC_BASE_PNODE_SHIFT | m)); - } + uv_write_global_mmr64(pnode, UVH_LB_BAU_SB_DESCRIPTOR_BASE, + (n << UV_DESC_BASE_PNODE_SHIFT | m)); /* * initializing all 8 (UV_ITEMS_PER_DESCRIPTOR) descriptors for each -- cgit v1.2.3 From 7433ab770327b471399f7b5baacad78e160b5393 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Thu, 25 Jun 2009 02:30:10 +0900 Subject: sh: Hook up page fault events for software perf counters. This adds page fault instrumentation for the software performance counters. Follows the x86 and powerpc changes. Signed-off-by: Paul Mundt --- arch/sh/mm/fault_32.c | 61 +++++++++++++++++++++++++++------------------------ 1 file changed, 32 insertions(+), 29 deletions(-) diff --git a/arch/sh/mm/fault_32.c b/arch/sh/mm/fault_32.c index cc8ddbdf3d7..71925946f1e 100644 --- a/arch/sh/mm/fault_32.c +++ b/arch/sh/mm/fault_32.c @@ -15,12 +15,28 @@ #include #include #include -#include +#include #include #include #include #include +static inline int notify_page_fault(struct pt_regs *regs, int trap) +{ + int ret = 0; + +#ifdef CONFIG_KPROBES + if (!user_mode(regs)) { + preempt_disable(); + if (kprobe_running() && kprobe_fault_handler(regs, trap)) + ret = 1; + preempt_enable(); + } +#endif + + return ret; +} + /* * This routine handles page faults. It determines the address, * and the problem, and then passes it off to one of the appropriate @@ -87,13 +103,16 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs, return; } + mm = tsk->mm; + + if (unlikely(notify_page_fault(regs, lookup_exception_vector()))) + return; + /* Only enable interrupts if they were on before the fault */ - if ((regs->sr & SR_IMASK) != SR_IMASK) { - trace_hardirqs_on(); + if ((regs->sr & SR_IMASK) != SR_IMASK) local_irq_enable(); - } - mm = tsk->mm; + perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address); /* * If we're in an interrupt or have no user @@ -141,10 +160,15 @@ survive: goto do_sigbus; BUG(); } - if (fault & VM_FAULT_MAJOR) + if (fault & VM_FAULT_MAJOR) { tsk->maj_flt++; - else + perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0, + regs, address); + } else { tsk->min_flt++; + perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0, + regs, address); + } up_read(&mm->mmap_sem); return; @@ -245,22 +269,6 @@ do_sigbus: goto no_context; } -static inline int notify_page_fault(struct pt_regs *regs, int trap) -{ - int ret = 0; - -#ifdef CONFIG_KPROBES - if (!user_mode(regs)) { - preempt_disable(); - if (kprobe_running() && kprobe_fault_handler(regs, trap)) - ret = 1; - preempt_enable(); - } -#endif - - return ret; -} - /* * Called with interrupts disabled. */ @@ -273,12 +281,7 @@ asmlinkage int __kprobes __do_page_fault(struct pt_regs *regs, pmd_t *pmd; pte_t *pte; pte_t entry; - int ret = 0; - - if (notify_page_fault(regs, lookup_exception_vector())) - goto out; - - ret = 1; + int ret = 1; /* * We don't take page faults for P1, P2, and parts of P4, these -- cgit v1.2.3 From 163b2f0ba93e9298b3d5fff2337d860c3872ec60 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Thu, 25 Jun 2009 02:49:03 +0900 Subject: sh64: Hook up page fault events for software perf counters. sh64 can use these as well, so tie them up there as well. Signed-off-by: Paul Mundt --- arch/sh/mm/tlbflush_64.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/arch/sh/mm/tlbflush_64.c b/arch/sh/mm/tlbflush_64.c index fcbb6e135ce..3ce40ea3482 100644 --- a/arch/sh/mm/tlbflush_64.c +++ b/arch/sh/mm/tlbflush_64.c @@ -3,7 +3,7 @@ * * Copyright (C) 2000, 2001 Paolo Alberelli * Copyright (C) 2003 Richard Curnow (/proc/tlb, bug fixes) - * Copyright (C) 2003 Paul Mundt + * Copyright (C) 2003 - 2009 Paul Mundt * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include @@ -115,6 +116,8 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long writeaccess, /* Not an IO address, so reenable interrupts */ local_irq_enable(); + perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address); + /* * If we're in an interrupt or have no user * context, we must not take the fault.. @@ -195,10 +198,16 @@ survive: goto do_sigbus; BUG(); } - if (fault & VM_FAULT_MAJOR) + + if (fault & VM_FAULT_MAJOR) { tsk->maj_flt++; - else + perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0, + regs, address); + } else { tsk->min_flt++; + perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0, + regs, address); + } /* If we get here, the page fault has been handled. Do the TLB refill now from the newly-setup PTE, to avoid having to fault again right -- cgit v1.2.3 From 1b173f77dd0d5fd4f0ff18034aaa79e30da068b9 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Wed, 24 Jun 2009 19:54:29 +0200 Subject: perf_counter tools: Add CREDITS file for Git contributors Much of perf's libraries comes from the Git project. I noticed that the files (in tools/perf/util/*.[ch] and elsewhere) are quite spartan wrt. credits, so lets add a CREDITS file that includes an (incomplete!) list of main contributors. Thanks guys, these libraries are really useful. Special thanks go to Johannes Schindelin and Junio C Hamano for coming up with this list. List-Composed-By: Johannes Schindelin Cc: Junio C Hamano Signed-off-by: Ingo Molnar --- tools/perf/CREDITS | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 tools/perf/CREDITS diff --git a/tools/perf/CREDITS b/tools/perf/CREDITS new file mode 100644 index 00000000000..c2ddcb3acbd --- /dev/null +++ b/tools/perf/CREDITS @@ -0,0 +1,30 @@ +Most of the infrastructure that 'perf' uses here has been reused +from the Git project, as of version: + + 66996ec: Sync with 1.6.2.4 + +Here is an (incomplete!) list of main contributors to those files +in util/* and elsewhere: + + Alex Riesen + Christian Couder + Dmitry Potapov + Jeff King + Johannes Schindelin + Johannes Sixt + Junio C Hamano + Linus Torvalds + Matthias Kestenholz + Michal Ostrowski + Miklos Vajna + Petr Baudis + Pierre Habouzit + René Scharfe + Samuel Tardieu + Shawn O. Pearce + Steffen Prohaska + Steve Haslam + +Thanks guys! + +The full history of the files can be found in the upstream Git commits. -- cgit v1.2.3 From 268875b9d1dd1bf0b523c59e736da9bc20c8ce1f Mon Sep 17 00:00:00 2001 From: Steve French Date: Thu, 25 Jun 2009 00:29:21 +0000 Subject: [CIFS] Do not send tree disconnect if session is already disconnected Noticed this when tree connect timed out (due to Samba server crash) - we try to send a tree disconnect for a tid that does not exist since we don't have a valid tree id yet. This checks that the session is valid before sending the tree disconnect to handle this case. Signed-off-by: Steve French --- fs/cifs/CHANGES | 2 +- fs/cifs/cifssmb.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES index b4868983942..3a9b7a58a51 100644 --- a/fs/cifs/CHANGES +++ b/fs/cifs/CHANGES @@ -5,7 +5,7 @@ client generated ones by default (mount option "serverino" turned on by default if server supports it). Add forceuid and forcegid mount options (so that when negotiating unix extensions specifying which uid mounted does not immediately force the server's reported -uids to be overridden). +uids to be overridden). Add support for scope moutn parm. Version 1.58 ------------ diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index b84c61d5bca..58d65a9a79c 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -729,7 +729,7 @@ CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon) * the tcon is no longer on the list, so no need to take lock before * checking this. */ - if (tcon->need_reconnect) + if ((tcon->need_reconnect) || (tcon->ses->need_reconnect)) return 0; rc = small_smb_init(SMB_COM_TREE_DISCONNECT, 0, tcon, -- cgit v1.2.3 From 681bf72e4893a187cf6b6b62c08fc193f81c8c2f Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Thu, 11 Jun 2009 10:27:31 -0400 Subject: cifs: have cifs parse scope_id out of IPv6 addresses and use it This patch has CIFS look for a '%' in an IPv6 address. If one is present then it will try to treat that value as a numeric interface index suitable for stuffing into the sin6_scope_id field. This should allow people to mount servers on IPv6 link-local addresses. Signed-off-by: Jeff Layton Acked-by: David Holder Signed-off-by: Steve French --- fs/cifs/connect.c | 6 ++++-- fs/cifs/dns_resolve.c | 4 ++-- fs/cifs/netmisc.c | 32 +++++++++++++++++++++++++++----- 3 files changed, 33 insertions(+), 9 deletions(-) diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index c368ad65823..3fb799ff55c 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1386,8 +1386,10 @@ cifs_find_tcp_session(struct sockaddr_storage *addr) server->addr.sockAddr.sin_addr.s_addr)) continue; else if (addr->ss_family == AF_INET6 && - !ipv6_addr_equal(&server->addr.sockAddr6.sin6_addr, - &addr6->sin6_addr)) + (!ipv6_addr_equal(&server->addr.sockAddr6.sin6_addr, + &addr6->sin6_addr) || + server->addr.sockAddr6.sin6_scope_id != + addr6->sin6_scope_id)) continue; ++server->srv_count; diff --git a/fs/cifs/dns_resolve.c b/fs/cifs/dns_resolve.c index 91b5500755b..87948147d7e 100644 --- a/fs/cifs/dns_resolve.c +++ b/fs/cifs/dns_resolve.c @@ -35,7 +35,7 @@ * 0 - name is not IP */ static int -is_ip(const char *name) +is_ip(char *name) { struct sockaddr_storage ss; @@ -57,7 +57,7 @@ dns_resolver_instantiate(struct key *key, const void *data, ip[datalen] = '\0'; /* make sure this looks like an address */ - if (!is_ip((const char *) ip)) { + if (!is_ip(ip)) { kfree(ip); return -EINVAL; } diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c index f9a54da97d3..bd6d6895730 100644 --- a/fs/cifs/netmisc.c +++ b/fs/cifs/netmisc.c @@ -158,25 +158,47 @@ cifs_inet_pton(const int address_family, const char *cp, void *dst) /* * Try to convert a string to an IPv4 address and then attempt to convert * it to an IPv6 address if that fails. Set the family field if either - * succeeds. + * succeeds. If it's an IPv6 address and it has a '%' sign in it, try to + * treat the part following it as a numeric sin6_scope_id. * * Returns 0 on failure. */ int cifs_convert_address(char *src, void *dst) { + int rc; + char *pct, *endp; struct sockaddr_in *s4 = (struct sockaddr_in *) dst; struct sockaddr_in6 *s6 = (struct sockaddr_in6 *) dst; + /* IPv4 address */ if (cifs_inet_pton(AF_INET, src, &s4->sin_addr.s_addr)) { s4->sin_family = AF_INET; return 1; - } else if (cifs_inet_pton(AF_INET6, src, &s6->sin6_addr.s6_addr)) { - s6->sin6_family = AF_INET6; - return 1; } - return 0; + /* temporarily terminate string */ + pct = strchr(src, '%'); + if (pct) + *pct = '\0'; + + rc = cifs_inet_pton(AF_INET6, src, &s6->sin6_addr.s6_addr); + + /* repair temp termination (if any) and make pct point to scopeid */ + if (pct) + *pct++ = '%'; + + if (!rc) + return rc; + + s6->sin6_family = AF_INET6; + if (pct) { + s6->sin6_scope_id = (u32) simple_strtoul(pct, &endp, 0); + if (!*pct || *endp) + return 0; + } + + return rc; } /***************************************************************************** -- cgit v1.2.3 From b48a485884b5afb3e33b1871bcbd246b67491923 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Thu, 25 Jun 2009 00:56:54 -0400 Subject: cifs: fix problems with earlier patches cifs: fix problems with earlier patches cifs_show_address hasn't been introduced yet, and fix a typo that was silently fixed by a later patch in the series. Signed-off-by: Jeff Layton Signed-off-by: Steve French --- fs/cifs/cifsfs.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index ddef913ff3e..b5e9f398c2e 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -374,8 +374,6 @@ cifs_show_options(struct seq_file *s, struct vfsmount *m) if (tcon->ses->domainName) seq_printf(s, ",domain=%s", tcon->ses->domainName); - cifs_show_address(s, tcon->ses->server); - seq_printf(s, ",uid=%d", cifs_sb->mnt_uid); if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) seq_printf(s, ",forceuid"); -- cgit v1.2.3 From 6459340cfcc6f6d165b27c3dd955aeb55a1b73d3 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Thu, 25 Jun 2009 00:56:55 -0400 Subject: cifs: remove rw/ro options cifs: remove rw/ro options These options are handled at the VFS layer. They only ever set the option in the smb_vol struct. Nothing was ever done with them afterward anyway. Signed-off-by: Jeff Layton Signed-off-by: Steve French --- fs/cifs/connect.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 3fb799ff55c..a581cfa2ba8 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -70,7 +70,6 @@ struct smb_vol { mode_t file_mode; mode_t dir_mode; unsigned secFlg; - bool rw:1; bool retry:1; bool intr:1; bool setuids:1; @@ -832,7 +831,6 @@ cifs_parse_mount_options(char *options, const char *devname, vol->dir_mode = vol->file_mode = S_IRUGO | S_IXUGO | S_IWUSR; /* vol->retry default is 0 (i.e. "soft" limited retry not hard retry) */ - vol->rw = true; /* default is always to request posix paths. */ vol->posix_paths = 1; /* default to using server inode numbers where available */ @@ -1198,8 +1196,6 @@ cifs_parse_mount_options(char *options, const char *devname, /* ignore */ } else if (strnicmp(data, "guest", 5) == 0) { /* ignore */ - } else if (strnicmp(data, "rw", 2) == 0) { - vol->rw = true; } else if (strnicmp(data, "noblocksend", 11) == 0) { vol->noblocksnd = 1; } else if (strnicmp(data, "noautotune", 10) == 0) { @@ -1218,8 +1214,6 @@ cifs_parse_mount_options(char *options, const char *devname, parse these options again and set anything and it is ok to just ignore them */ continue; - } else if (strnicmp(data, "ro", 2) == 0) { - vol->rw = false; } else if (strnicmp(data, "hard", 4) == 0) { vol->retry = 1; } else if (strnicmp(data, "soft", 4) == 0) { -- cgit v1.2.3 From 6debdbc0ba6253ac519cd5a3d22e30f1f9f1dd12 Mon Sep 17 00:00:00 2001 From: Simo Leone Date: Thu, 25 Jun 2009 02:44:43 +0000 Subject: [CIFS] Copy struct *after* setting the port, instead of before. Acked-by: Jeff Layton Signed-off-by: Simo Leone Signed-off-by: Steve French --- fs/cifs/connect.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index a581cfa2ba8..12c2cf69355 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1496,14 +1496,14 @@ cifs_get_tcp_session(struct smb_vol *volume_info) cFYI(1, ("attempting ipv6 connect")); /* BB should we allow ipv6 on port 139? */ /* other OS never observed in Wild doing 139 with v6 */ + sin_server6->sin6_port = htons(volume_info->port); memcpy(&tcp_ses->addr.sockAddr6, sin_server6, sizeof(struct sockaddr_in6)); - sin_server6->sin6_port = htons(volume_info->port); rc = ipv6_connect(tcp_ses); } else { + sin_server->sin_port = htons(volume_info->port); memcpy(&tcp_ses->addr.sockAddr, sin_server, sizeof(struct sockaddr_in)); - sin_server->sin_port = htons(volume_info->port); rc = ipv4_connect(tcp_ses); } if (rc < 0) { -- cgit v1.2.3 From f46c7234e472ceee39afea4fb5a4365843e1850a Mon Sep 17 00:00:00 2001 From: Steve French Date: Thu, 25 Jun 2009 03:04:20 +0000 Subject: [CIFS] cleanup asn handling for ntlmssp Also removes obsolete distinction between rawntlmssp and ntlmssp (in asn/SPNEGO) since as jra noted we can always send raw ntlmssp in session setup now. remove check for experimental runtime flag (/proc/fs/cifs/Experimental) in ntlmssp path. Reviewed-by: Jeff Layton Signed-off-by: Steve French --- fs/cifs/asn1.c | 55 ++++++++++++++++++++++++++++++++++++++++++++++++------ fs/cifs/cifsglob.h | 2 +- fs/cifs/cifssmb.c | 2 +- fs/cifs/sess.c | 2 +- 4 files changed, 52 insertions(+), 9 deletions(-) diff --git a/fs/cifs/asn1.c b/fs/cifs/asn1.c index 1b09f167006..20692fbfdb2 100644 --- a/fs/cifs/asn1.c +++ b/fs/cifs/asn1.c @@ -49,6 +49,7 @@ #define ASN1_OJI 6 /* Object Identifier */ #define ASN1_OJD 7 /* Object Description */ #define ASN1_EXT 8 /* External */ +#define ASN1_ENUM 10 /* Enumerated */ #define ASN1_SEQ 16 /* Sequence */ #define ASN1_SET 17 /* Set */ #define ASN1_NUMSTR 18 /* Numerical String */ @@ -78,10 +79,12 @@ #define SPNEGO_OID_LEN 7 #define NTLMSSP_OID_LEN 10 #define KRB5_OID_LEN 7 +#define KRB5U2U_OID_LEN 8 #define MSKRB5_OID_LEN 7 static unsigned long SPNEGO_OID[7] = { 1, 3, 6, 1, 5, 5, 2 }; static unsigned long NTLMSSP_OID[10] = { 1, 3, 6, 1, 4, 1, 311, 2, 2, 10 }; static unsigned long KRB5_OID[7] = { 1, 2, 840, 113554, 1, 2, 2 }; +static unsigned long KRB5U2U_OID[8] = { 1, 2, 840, 113554, 1, 2, 2, 3 }; static unsigned long MSKRB5_OID[7] = { 1, 2, 840, 48018, 1, 2, 2 }; /* @@ -122,6 +125,28 @@ asn1_octet_decode(struct asn1_ctx *ctx, unsigned char *ch) return 1; } +#if 0 /* will be needed later by spnego decoding/encoding of ntlmssp */ +static unsigned char +asn1_enum_decode(struct asn1_ctx *ctx, __le32 *val) +{ + unsigned char ch; + + if (ctx->pointer >= ctx->end) { + ctx->error = ASN1_ERR_DEC_EMPTY; + return 0; + } + + ch = *(ctx->pointer)++; /* ch has 0xa, ptr points to lenght octet */ + if ((ch) == ASN1_ENUM) /* if ch value is ENUM, 0xa */ + *val = *(++(ctx->pointer)); /* value has enum value */ + else + return 0; + + ctx->pointer++; + return 1; +} +#endif + static unsigned char asn1_tag_decode(struct asn1_ctx *ctx, unsigned int *tag) { @@ -476,10 +501,9 @@ decode_negTokenInit(unsigned char *security_blob, int length, unsigned int cls, con, tag, oidlen, rc; bool use_ntlmssp = false; bool use_kerberos = false; + bool use_kerberosu2u = false; bool use_mskerberos = false; - *secType = NTLM; /* BB eventually make Kerberos or NLTMSSP the default*/ - /* cifs_dump_mem(" Received SecBlob ", security_blob, length); */ asn1_open(&ctx, security_blob, length); @@ -515,6 +539,7 @@ decode_negTokenInit(unsigned char *security_blob, int length, return 0; } + /* SPNEGO */ if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { cFYI(1, ("Error decoding negTokenInit")); return 0; @@ -526,6 +551,7 @@ decode_negTokenInit(unsigned char *security_blob, int length, return 0; } + /* negTokenInit */ if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { cFYI(1, ("Error decoding negTokenInit")); return 0; @@ -537,6 +563,7 @@ decode_negTokenInit(unsigned char *security_blob, int length, return 0; } + /* sequence */ if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { cFYI(1, ("Error decoding 2nd part of negTokenInit")); return 0; @@ -548,6 +575,7 @@ decode_negTokenInit(unsigned char *security_blob, int length, return 0; } + /* sequence of */ if (asn1_header_decode (&ctx, &sequence_end, &cls, &con, &tag) == 0) { cFYI(1, ("Error decoding 2nd part of negTokenInit")); @@ -560,6 +588,7 @@ decode_negTokenInit(unsigned char *security_blob, int length, return 0; } + /* list of security mechanisms */ while (!asn1_eoc_decode(&ctx, sequence_end)) { rc = asn1_header_decode(&ctx, &end, &cls, &con, &tag); if (!rc) { @@ -576,11 +605,15 @@ decode_negTokenInit(unsigned char *security_blob, int length, if (compare_oid(oid, oidlen, MSKRB5_OID, MSKRB5_OID_LEN) && - !use_kerberos) + !use_mskerberos) use_mskerberos = true; + else if (compare_oid(oid, oidlen, KRB5U2U_OID, + KRB5U2U_OID_LEN) && + !use_kerberosu2u) + use_kerberosu2u = true; else if (compare_oid(oid, oidlen, KRB5_OID, KRB5_OID_LEN) && - !use_mskerberos) + !use_kerberos) use_kerberos = true; else if (compare_oid(oid, oidlen, NTLMSSP_OID, NTLMSSP_OID_LEN)) @@ -593,7 +626,12 @@ decode_negTokenInit(unsigned char *security_blob, int length, } } + /* mechlistMIC */ if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { + /* Check if we have reached the end of the blob, but with + no mechListMic (e.g. NTLMSSP instead of KRB5) */ + if (ctx.error == ASN1_ERR_DEC_EMPTY) + goto decode_negtoken_exit; cFYI(1, ("Error decoding last part negTokenInit exit3")); return 0; } else if ((cls != ASN1_CTX) || (con != ASN1_CON)) { @@ -602,6 +640,8 @@ decode_negTokenInit(unsigned char *security_blob, int length, cls, con, tag, end, *end)); return 0; } + + /* sequence */ if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { cFYI(1, ("Error decoding last part negTokenInit exit5")); return 0; @@ -611,6 +651,7 @@ decode_negTokenInit(unsigned char *security_blob, int length, cls, con, tag, end, *end)); } + /* sequence of */ if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { cFYI(1, ("Error decoding last part negTokenInit exit 7")); return 0; @@ -619,6 +660,8 @@ decode_negTokenInit(unsigned char *security_blob, int length, cls, con, tag, end, *end)); return 0; } + + /* general string */ if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { cFYI(1, ("Error decoding last part negTokenInit exit9")); return 0; @@ -630,13 +673,13 @@ decode_negTokenInit(unsigned char *security_blob, int length, } cFYI(1, ("Need to call asn1_octets_decode() function for %s", ctx.pointer)); /* is this UTF-8 or ASCII? */ - +decode_negtoken_exit: if (use_kerberos) *secType = Kerberos; else if (use_mskerberos) *secType = MSKerberos; else if (use_ntlmssp) - *secType = NTLMSSP; + *secType = RawNTLMSSP; return 1; } diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index a61ab772c6f..e1225e6ded2 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -83,7 +83,7 @@ enum securityEnum { NTLM, /* Legacy NTLM012 auth with NTLM hash */ NTLMv2, /* Legacy NTLM auth with NTLMv2 hash */ RawNTLMSSP, /* NTLMSSP without SPNEGO, NTLMv2 hash */ - NTLMSSP, /* NTLMSSP via SPNEGO, NTLMv2 hash */ +/* NTLMSSP, */ /* can use rawNTLMSSP instead of NTLMSSP via SPNEGO */ Kerberos, /* Kerberos via SPNEGO */ MSKerberos, /* MS Kerberos via SPNEGO */ }; diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 58d65a9a79c..61007c62749 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -594,7 +594,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) else if (secFlags & CIFSSEC_MAY_KRB5) server->secType = Kerberos; else if (secFlags & CIFSSEC_MAY_NTLMSSP) - server->secType = NTLMSSP; + server->secType = RawNTLMSSP; else if (secFlags & CIFSSEC_MAY_LANMAN) server->secType = LANMAN; /* #ifdef CONFIG_CIFS_EXPERIMENTAL diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index 897a052270f..7085a6275c4 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -802,7 +802,7 @@ ssetup_ntlmssp_authenticate: #endif /* CONFIG_CIFS_UPCALL */ } else { #ifdef CONFIG_CIFS_EXPERIMENTAL - if ((experimEnabled > 1) && (type == RawNTLMSSP)) { + if (type == RawNTLMSSP) { if ((pSMB->req.hdr.Flags2 & SMBFLG2_UNICODE) == 0) { cERROR(1, ("NTLMSSP requires Unicode support")); rc = -ENOSYS; -- cgit v1.2.3 From febe8345353e8873e43f2c2c9792d062c770b22b Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Thu, 25 Jun 2009 14:41:57 +0900 Subject: perf_counter tools: add cpu_relax()/rmb() definitions for sh. Simple cpu_relax()/rmb() stubs that perf needs, which were inadvertently omitted from the sh HAVE_PERF_COUNTERS patch. Signed-off-by: Paul Mundt --- tools/perf/perf.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/tools/perf/perf.h b/tools/perf/perf.h index ceb68aa51f7..f735b6924a2 100644 --- a/tools/perf/perf.h +++ b/tools/perf/perf.h @@ -19,6 +19,16 @@ #define cpu_relax() asm volatile("" ::: "memory"); #endif +#ifdef __sh__ +#include "../../arch/sh/include/asm/unistd.h" +#if defined(__SH4A__) || defined(__SH5__) +# define rmb() asm volatile("synco" ::: "memory") +#else +# define rmb() asm volatile("" ::: "memory") +#endif +#define cpu_relax() asm volatile("" ::: "memory") +#endif + #include #include #include -- cgit v1.2.3 From 261c2407401ca26fa17f05667ea68f51e12c5303 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 25 Jun 2009 08:13:40 +0200 Subject: ALSA: hda - Add pin-sense trigger when needed for Realtek codecs Realtek codecs require the pin-sense trigger call before actually reading the pin-sense. Without this, the pin-detection might not be done accurately. This patch adds the pin-capability check and issues the trigger call if required. Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 33453319742..98ac24adf39 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -945,12 +945,13 @@ static void alc_fix_pll_init(struct hda_codec *codec, hda_nid_t nid, static void alc_automute_pin(struct hda_codec *codec) { struct alc_spec *spec = codec->spec; - unsigned int present; + unsigned int present, pincap; unsigned int nid = spec->autocfg.hp_pins[0]; int i; - /* need to execute and sync at first */ - snd_hda_codec_read(codec, nid, 0, AC_VERB_SET_PIN_SENSE, 0); + pincap = snd_hda_query_pin_caps(codec, nid); + if (pincap & AC_PINCAP_TRIG_REQ) /* need trigger? */ + snd_hda_codec_read(codec, nid, 0, AC_VERB_SET_PIN_SENSE, 0); present = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_PIN_SENSE, 0); spec->jack_present = (present & AC_PINSENSE_PRESENCE) != 0; @@ -1392,7 +1393,7 @@ static struct hda_verb alc888_fujitsu_xa3530_verbs[] = { static void alc_automute_amp(struct hda_codec *codec) { struct alc_spec *spec = codec->spec; - unsigned int val, mute; + unsigned int val, mute, pincap; hda_nid_t nid; int i; @@ -1401,6 +1402,10 @@ static void alc_automute_amp(struct hda_codec *codec) nid = spec->autocfg.hp_pins[i]; if (!nid) break; + pincap = snd_hda_query_pin_caps(codec, nid); + if (pincap & AC_PINCAP_TRIG_REQ) /* need trigger? */ + snd_hda_codec_read(codec, nid, 0, + AC_VERB_SET_PIN_SENSE, 0); val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_PIN_SENSE, 0); if (val & AC_PINSENSE_PRESENCE) { -- cgit v1.2.3 From 320d592001acbfd76bf856b5370319f144285489 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Emilio=20L=C3=B3pez?= Date: Thu, 25 Jun 2009 08:18:44 +0200 Subject: ALSA: hda - Fix acer-aspire-6530g model quirk MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix the following bugs of acer-aspire-6530g model with ALC888: - HP jack to mute all speaker outputs including LFE - Make digital built-in mic working Signed-off-by: Emilio López Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 98ac24adf39..7ebe5216b4b 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -1476,6 +1476,10 @@ static struct hda_verb alc888_acer_aspire_4930g_verbs[] = { static struct hda_verb alc888_acer_aspire_6530g_verbs[] = { /* Bias voltage on for external mic port */ {0x18, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_IN | PIN_VREF80}, +/* Front Mic: set to PIN_IN (empty by default) */ + {0x12, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_IN}, +/* Unselect Front Mic by default in input mixer 3 */ + {0x22, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(0xb)}, /* Enable unsolicited event for HP jack */ {0x15, AC_VERB_SET_UNSOLICITED_ENABLE, ALC880_HP_EVENT | AC_USRSP_EN}, /* Enable speaker output */ @@ -1644,6 +1648,17 @@ static void alc888_acer_aspire_4930g_init_hook(struct hda_codec *codec) alc_automute_amp(codec); } +static void alc888_acer_aspire_6530g_init_hook(struct hda_codec *codec) +{ + struct alc_spec *spec = codec->spec; + + spec->autocfg.hp_pins[0] = 0x15; + spec->autocfg.speaker_pins[0] = 0x14; + spec->autocfg.speaker_pins[1] = 0x16; + spec->autocfg.speaker_pins[2] = 0x17; + alc_automute_amp(codec); +} + static void alc889_acer_aspire_8930g_init_hook(struct hda_codec *codec) { struct alc_spec *spec = codec->spec; @@ -9322,7 +9337,7 @@ static struct alc_config_preset alc883_presets[] = { ARRAY_SIZE(alc888_2_capture_sources), .input_mux = alc888_acer_aspire_6530_sources, .unsol_event = alc_automute_amp_unsol_event, - .init_hook = alc888_acer_aspire_4930g_init_hook, + .init_hook = alc888_acer_aspire_6530g_init_hook, }, [ALC888_ACER_ASPIRE_8930G] = { .mixers = { alc888_base_mixer, -- cgit v1.2.3 From dde6535686aa4e78e8b85850d1f3fccd8a581622 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 25 Jun 2009 08:25:35 +0200 Subject: ALSA: hda - Use model=acer-aspire-6530g for Acer Aspire 6930G For Acer Aspire 6930G (1025:015e), acre-aspire-6530g model matches obviously better. Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 7ebe5216b4b..2ed514030e7 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -9084,7 +9084,7 @@ static struct snd_pci_quirk alc883_cfg_tbl[] = { SND_PCI_QUIRK(0x1025, 0x0157, "Acer X3200", ALC883_AUTO), SND_PCI_QUIRK(0x1025, 0x0158, "Acer AX1700-U3700A", ALC883_AUTO), SND_PCI_QUIRK(0x1025, 0x015e, "Acer Aspire 6930G", - ALC888_ACER_ASPIRE_4930G), + ALC888_ACER_ASPIRE_6530G), SND_PCI_QUIRK(0x1025, 0x0166, "Acer Aspire 6530G", ALC888_ACER_ASPIRE_6530G), /* default Acer -- disabled as it causes more problems. -- cgit v1.2.3 From 28d27aae9432c300857722a917be4065c6d7abff Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Wed, 24 Jun 2009 22:13:35 -0700 Subject: sound: Use PCI_VDEVICE Signed-off-by: Joe Perches Signed-off-by: Takashi Iwai --- sound/oss/kahlua.c | 2 +- sound/pci/atiixp.c | 8 ++++---- sound/pci/atiixp_modem.c | 4 ++-- sound/pci/au88x0/au8810.c | 3 +-- sound/pci/au88x0/au8820.c | 3 +-- sound/pci/au88x0/au8830.c | 3 +-- sound/pci/cmipci.c | 10 +++++----- sound/pci/cs4281.c | 2 +- sound/pci/cs46xx/cs46xx.c | 6 +++--- sound/pci/ens1370.c | 6 +++--- sound/pci/es1938.c | 2 +- sound/pci/ice1712/ice1712.c | 2 +- sound/pci/ice1712/ice1724.c | 2 +- sound/pci/intel8x0.c | 46 ++++++++++++++++++++++----------------------- sound/pci/intel8x0m.c | 34 ++++++++++++++++----------------- sound/pci/mixart/mixart.c | 2 +- sound/pci/nm256/nm256.c | 6 +++--- sound/pci/rme32.c | 9 +++------ sound/pci/rme96.c | 12 ++++-------- sound/pci/sonicvibes.c | 2 +- sound/pci/via82xx.c | 4 ++-- sound/pci/via82xx_modem.c | 2 +- sound/pci/ymfpci/ymfpci.c | 12 ++++++------ 23 files changed, 86 insertions(+), 96 deletions(-) diff --git a/sound/oss/kahlua.c b/sound/oss/kahlua.c index c180598f171..89466b056be 100644 --- a/sound/oss/kahlua.c +++ b/sound/oss/kahlua.c @@ -199,7 +199,7 @@ MODULE_LICENSE("GPL"); */ static struct pci_device_id id_tbl[] = { - { PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_AUDIO, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, + { PCI_VDEVICE(CYRIX, PCI_DEVICE_ID_CYRIX_5530_AUDIO), 0 }, { } }; diff --git a/sound/pci/atiixp.c b/sound/pci/atiixp.c index 71515ddb459..d6752dff2a4 100644 --- a/sound/pci/atiixp.c +++ b/sound/pci/atiixp.c @@ -287,10 +287,10 @@ struct atiixp { /* */ static struct pci_device_id snd_atiixp_ids[] = { - { 0x1002, 0x4341, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* SB200 */ - { 0x1002, 0x4361, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* SB300 */ - { 0x1002, 0x4370, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* SB400 */ - { 0x1002, 0x4382, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* SB600 */ + { PCI_VDEVICE(ATI, 0x4341), 0 }, /* SB200 */ + { PCI_VDEVICE(ATI, 0x4361), 0 }, /* SB300 */ + { PCI_VDEVICE(ATI, 0x4370), 0 }, /* SB400 */ + { PCI_VDEVICE(ATI, 0x4382), 0 }, /* SB600 */ { 0, } }; diff --git a/sound/pci/atiixp_modem.c b/sound/pci/atiixp_modem.c index c3136cccc55..e7e147bf8eb 100644 --- a/sound/pci/atiixp_modem.c +++ b/sound/pci/atiixp_modem.c @@ -262,8 +262,8 @@ struct atiixp_modem { /* */ static struct pci_device_id snd_atiixp_ids[] = { - { 0x1002, 0x434d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* SB200 */ - { 0x1002, 0x4378, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* SB400 */ + { PCI_VDEVICE(ATI, 0x434d), 0 }, /* SB200 */ + { PCI_VDEVICE(ATI, 0x4378), 0 }, /* SB400 */ { 0, } }; diff --git a/sound/pci/au88x0/au8810.c b/sound/pci/au88x0/au8810.c index fce22c7af0e..c0e8c6b295c 100644 --- a/sound/pci/au88x0/au8810.c +++ b/sound/pci/au88x0/au8810.c @@ -1,8 +1,7 @@ #include "au8810.h" #include "au88x0.h" static struct pci_device_id snd_vortex_ids[] = { - {PCI_VENDOR_ID_AUREAL, PCI_DEVICE_ID_AUREAL_ADVANTAGE, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1,}, + {PCI_VDEVICE(AUREAL, PCI_DEVICE_ID_AUREAL_ADVANTAGE), 1,}, {0,} }; diff --git a/sound/pci/au88x0/au8820.c b/sound/pci/au88x0/au8820.c index d1fbcce0725..a6527330df5 100644 --- a/sound/pci/au88x0/au8820.c +++ b/sound/pci/au88x0/au8820.c @@ -1,8 +1,7 @@ #include "au8820.h" #include "au88x0.h" static struct pci_device_id snd_vortex_ids[] = { - {PCI_VENDOR_ID_AUREAL, PCI_DEVICE_ID_AUREAL_VORTEX_1, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0,}, + {PCI_VDEVICE(AUREAL, PCI_DEVICE_ID_AUREAL_VORTEX_1), 0,}, {0,} }; diff --git a/sound/pci/au88x0/au8830.c b/sound/pci/au88x0/au8830.c index d4f2717c14f..6c702ad4352 100644 --- a/sound/pci/au88x0/au8830.c +++ b/sound/pci/au88x0/au8830.c @@ -1,8 +1,7 @@ #include "au8830.h" #include "au88x0.h" static struct pci_device_id snd_vortex_ids[] = { - {PCI_VENDOR_ID_AUREAL, PCI_DEVICE_ID_AUREAL_VORTEX_2, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0,}, + {PCI_VDEVICE(AUREAL, PCI_DEVICE_ID_AUREAL_VORTEX_2), 0,}, {0,} }; diff --git a/sound/pci/cmipci.c b/sound/pci/cmipci.c index 449fe02f666..ddcd4a9fd7e 100644 --- a/sound/pci/cmipci.c +++ b/sound/pci/cmipci.c @@ -2797,11 +2797,11 @@ static inline void snd_cmipci_proc_init(struct cmipci *cm) {} static struct pci_device_id snd_cmipci_ids[] = { - {PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8338A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, - {PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8338B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, - {PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8738, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, - {PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8738B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, - {PCI_VENDOR_ID_AL, PCI_DEVICE_ID_CMEDIA_CM8738, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + {PCI_VDEVICE(CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8338A), 0}, + {PCI_VDEVICE(CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8338B), 0}, + {PCI_VDEVICE(CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8738), 0}, + {PCI_VDEVICE(CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8738B), 0}, + {PCI_VDEVICE(AL, PCI_DEVICE_ID_CMEDIA_CM8738), 0}, {0,}, }; diff --git a/sound/pci/cs4281.c b/sound/pci/cs4281.c index f6286f84a22..e2e0359bb05 100644 --- a/sound/pci/cs4281.c +++ b/sound/pci/cs4281.c @@ -495,7 +495,7 @@ struct cs4281 { static irqreturn_t snd_cs4281_interrupt(int irq, void *dev_id); static struct pci_device_id snd_cs4281_ids[] = { - { 0x1013, 0x6005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* CS4281 */ + { PCI_VDEVICE(CIRRUS, 0x6005), 0, }, /* CS4281 */ { 0, } }; diff --git a/sound/pci/cs46xx/cs46xx.c b/sound/pci/cs46xx/cs46xx.c index c9b3e3d48cb..033aec43011 100644 --- a/sound/pci/cs46xx/cs46xx.c +++ b/sound/pci/cs46xx/cs46xx.c @@ -65,9 +65,9 @@ module_param_array(mmap_valid, bool, NULL, 0444); MODULE_PARM_DESC(mmap_valid, "Support OSS mmap."); static struct pci_device_id snd_cs46xx_ids[] = { - { 0x1013, 0x6001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* CS4280 */ - { 0x1013, 0x6003, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* CS4612 */ - { 0x1013, 0x6004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* CS4615 */ + { PCI_VDEVICE(CIRRUS, 0x6001), 0, }, /* CS4280 */ + { PCI_VDEVICE(CIRRUS, 0x6003), 0, }, /* CS4612 */ + { PCI_VDEVICE(CIRRUS, 0x6004), 0, }, /* CS4615 */ { 0, } }; diff --git a/sound/pci/ens1370.c b/sound/pci/ens1370.c index 18f4d1e98c4..d589bbc516e 100644 --- a/sound/pci/ens1370.c +++ b/sound/pci/ens1370.c @@ -445,11 +445,11 @@ static irqreturn_t snd_audiopci_interrupt(int irq, void *dev_id); static struct pci_device_id snd_audiopci_ids[] = { #ifdef CHIP1370 - { 0x1274, 0x5000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* ES1370 */ + { PCI_VDEVICE(ENSONIQ, 0x5000), 0, }, /* ES1370 */ #endif #ifdef CHIP1371 - { 0x1274, 0x1371, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* ES1371 */ - { 0x1274, 0x5880, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* ES1373 - CT5880 */ + { PCI_VDEVICE(ENSONIQ, 0x1371), 0, }, /* ES1371 */ + { PCI_VDEVICE(ENSONIQ, 0x5880), 0, }, /* ES1373 - CT5880 */ { 0x1102, 0x8938, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* Ectiva EV1938 */ #endif { 0, } diff --git a/sound/pci/es1938.c b/sound/pci/es1938.c index fbd2ac09aa3..820318ee62c 100644 --- a/sound/pci/es1938.c +++ b/sound/pci/es1938.c @@ -244,7 +244,7 @@ struct es1938 { static irqreturn_t snd_es1938_interrupt(int irq, void *dev_id); static struct pci_device_id snd_es1938_ids[] = { - { 0x125d, 0x1969, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* Solo-1 */ + { PCI_VDEVICE(ESS, 0x1969), 0, }, /* Solo-1 */ { 0, } }; diff --git a/sound/pci/ice1712/ice1712.c b/sound/pci/ice1712/ice1712.c index 0d0cdbdb448..cecf1ffeeaa 100644 --- a/sound/pci/ice1712/ice1712.c +++ b/sound/pci/ice1712/ice1712.c @@ -107,7 +107,7 @@ MODULE_PARM_DESC(dxr_enable, "Enable DXR support for Terratec DMX6FIRE."); static const struct pci_device_id snd_ice1712_ids[] = { - { PCI_VENDOR_ID_ICE, PCI_DEVICE_ID_ICE_1712, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* ICE1712 */ + { PCI_VDEVICE(ICE, PCI_DEVICE_ID_ICE_1712), 0 }, /* ICE1712 */ { 0, } }; diff --git a/sound/pci/ice1712/ice1724.c b/sound/pci/ice1712/ice1724.c index 36ade77cf37..cc84a831eb2 100644 --- a/sound/pci/ice1712/ice1724.c +++ b/sound/pci/ice1712/ice1724.c @@ -93,7 +93,7 @@ MODULE_PARM_DESC(model, "Use the given board model."); /* Both VT1720 and VT1724 have the same PCI IDs */ static const struct pci_device_id snd_vt1724_ids[] = { - { PCI_VENDOR_ID_ICE, PCI_DEVICE_ID_VT1724, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, + { PCI_VDEVICE(ICE, PCI_DEVICE_ID_VT1724), 0 }, { 0, } }; diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c index 8aa5687f392..171ada53520 100644 --- a/sound/pci/intel8x0.c +++ b/sound/pci/intel8x0.c @@ -421,29 +421,29 @@ struct intel8x0 { }; static struct pci_device_id snd_intel8x0_ids[] = { - { 0x8086, 0x2415, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82801AA */ - { 0x8086, 0x2425, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82901AB */ - { 0x8086, 0x2445, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82801BA */ - { 0x8086, 0x2485, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH3 */ - { 0x8086, 0x24c5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ICH4 */ - { 0x8086, 0x24d5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ICH5 */ - { 0x8086, 0x25a6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ESB */ - { 0x8086, 0x266e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ICH6 */ - { 0x8086, 0x27de, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ICH7 */ - { 0x8086, 0x2698, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ESB2 */ - { 0x8086, 0x7195, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 440MX */ - { 0x1039, 0x7012, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_SIS }, /* SI7012 */ - { 0x10de, 0x01b1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* NFORCE */ - { 0x10de, 0x003a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* MCP04 */ - { 0x10de, 0x006a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* NFORCE2 */ - { 0x10de, 0x0059, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* CK804 */ - { 0x10de, 0x008a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* CK8 */ - { 0x10de, 0x00da, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* NFORCE3 */ - { 0x10de, 0x00ea, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* CK8S */ - { 0x10de, 0x026b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* MCP51 */ - { 0x1022, 0x746d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD8111 */ - { 0x1022, 0x7445, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD768 */ - { 0x10b9, 0x5455, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALI }, /* Ali5455 */ + { PCI_VDEVICE(INTEL, 0x2415), DEVICE_INTEL }, /* 82801AA */ + { PCI_VDEVICE(INTEL, 0x2425), DEVICE_INTEL }, /* 82901AB */ + { PCI_VDEVICE(INTEL, 0x2445), DEVICE_INTEL }, /* 82801BA */ + { PCI_VDEVICE(INTEL, 0x2485), DEVICE_INTEL }, /* ICH3 */ + { PCI_VDEVICE(INTEL, 0x24c5), DEVICE_INTEL_ICH4 }, /* ICH4 */ + { PCI_VDEVICE(INTEL, 0x24d5), DEVICE_INTEL_ICH4 }, /* ICH5 */ + { PCI_VDEVICE(INTEL, 0x25a6), DEVICE_INTEL_ICH4 }, /* ESB */ + { PCI_VDEVICE(INTEL, 0x266e), DEVICE_INTEL_ICH4 }, /* ICH6 */ + { PCI_VDEVICE(INTEL, 0x27de), DEVICE_INTEL_ICH4 }, /* ICH7 */ + { PCI_VDEVICE(INTEL, 0x2698), DEVICE_INTEL_ICH4 }, /* ESB2 */ + { PCI_VDEVICE(INTEL, 0x7195), DEVICE_INTEL }, /* 440MX */ + { PCI_VDEVICE(SI, 0x7012), DEVICE_SIS }, /* SI7012 */ + { PCI_VDEVICE(NVIDIA, 0x01b1), DEVICE_NFORCE }, /* NFORCE */ + { PCI_VDEVICE(NVIDIA, 0x003a), DEVICE_NFORCE }, /* MCP04 */ + { PCI_VDEVICE(NVIDIA, 0x006a), DEVICE_NFORCE }, /* NFORCE2 */ + { PCI_VDEVICE(NVIDIA, 0x0059), DEVICE_NFORCE }, /* CK804 */ + { PCI_VDEVICE(NVIDIA, 0x008a), DEVICE_NFORCE }, /* CK8 */ + { PCI_VDEVICE(NVIDIA, 0x00da), DEVICE_NFORCE }, /* NFORCE3 */ + { PCI_VDEVICE(NVIDIA, 0x00ea), DEVICE_NFORCE }, /* CK8S */ + { PCI_VDEVICE(NVIDIA, 0x026b), DEVICE_NFORCE }, /* MCP51 */ + { PCI_VDEVICE(AMD, 0x746d), DEVICE_INTEL }, /* AMD8111 */ + { PCI_VDEVICE(AMD, 0x7445), DEVICE_INTEL }, /* AMD768 */ + { PCI_VDEVICE(AL, 0x5455), DEVICE_ALI }, /* Ali5455 */ { 0, } }; diff --git a/sound/pci/intel8x0m.c b/sound/pci/intel8x0m.c index 6ec0fc50d6b..9e7d12e7673 100644 --- a/sound/pci/intel8x0m.c +++ b/sound/pci/intel8x0m.c @@ -220,24 +220,24 @@ struct intel8x0m { }; static struct pci_device_id snd_intel8x0m_ids[] = { - { 0x8086, 0x2416, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82801AA */ - { 0x8086, 0x2426, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82901AB */ - { 0x8086, 0x2446, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82801BA */ - { 0x8086, 0x2486, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH3 */ - { 0x8086, 0x24c6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH4 */ - { 0x8086, 0x24d6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH5 */ - { 0x8086, 0x266d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH6 */ - { 0x8086, 0x27dd, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH7 */ - { 0x8086, 0x7196, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 440MX */ - { 0x1022, 0x7446, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD768 */ - { 0x1039, 0x7013, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_SIS }, /* SI7013 */ - { 0x10de, 0x01c1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* NFORCE */ - { 0x10de, 0x0069, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* NFORCE2 */ - { 0x10de, 0x0089, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* NFORCE2s */ - { 0x10de, 0x00d9, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* NFORCE3 */ + { PCI_VDEVICE(INTEL, 0x2416), DEVICE_INTEL }, /* 82801AA */ + { PCI_VDEVICE(INTEL, 0x2426), DEVICE_INTEL }, /* 82901AB */ + { PCI_VDEVICE(INTEL, 0x2446), DEVICE_INTEL }, /* 82801BA */ + { PCI_VDEVICE(INTEL, 0x2486), DEVICE_INTEL }, /* ICH3 */ + { PCI_VDEVICE(INTEL, 0x24c6), DEVICE_INTEL }, /* ICH4 */ + { PCI_VDEVICE(INTEL, 0x24d6), DEVICE_INTEL }, /* ICH5 */ + { PCI_VDEVICE(INTEL, 0x266d), DEVICE_INTEL }, /* ICH6 */ + { PCI_VDEVICE(INTEL, 0x27dd), DEVICE_INTEL }, /* ICH7 */ + { PCI_VDEVICE(INTEL, 0x7196), DEVICE_INTEL }, /* 440MX */ + { PCI_VDEVICE(AMD, 0x7446), DEVICE_INTEL }, /* AMD768 */ + { PCI_VDEVICE(SI, 0x7013), DEVICE_SIS }, /* SI7013 */ + { PCI_VDEVICE(NVIDIA, 0x01c1), DEVICE_NFORCE }, /* NFORCE */ + { PCI_VDEVICE(NVIDIA, 0x0069), DEVICE_NFORCE }, /* NFORCE2 */ + { PCI_VDEVICE(NVIDIA, 0x0089), DEVICE_NFORCE }, /* NFORCE2s */ + { PCI_VDEVICE(NVIDIA, 0x00d9), DEVICE_NFORCE }, /* NFORCE3 */ #if 0 - { 0x1022, 0x746d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD8111 */ - { 0x10b9, 0x5455, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALI }, /* Ali5455 */ + { PCI_VDEVICE(AMD, 0x746d), DEVICE_INTEL }, /* AMD8111 */ + { PCI_VDEVICE(AL, 0x5455), DEVICE_ALI }, /* Ali5455 */ #endif { 0, } }; diff --git a/sound/pci/mixart/mixart.c b/sound/pci/mixart/mixart.c index 82bc5b9e762..a83d1968a84 100644 --- a/sound/pci/mixart/mixart.c +++ b/sound/pci/mixart/mixart.c @@ -61,7 +61,7 @@ MODULE_PARM_DESC(enable, "Enable Digigram " CARD_NAME " soundcard."); */ static struct pci_device_id snd_mixart_ids[] = { - { 0x1057, 0x0003, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* MC8240 */ + { PCI_VDEVICE(MOTOROLA, 0x0003), 0, }, /* MC8240 */ { 0, } }; diff --git a/sound/pci/nm256/nm256.c b/sound/pci/nm256/nm256.c index 522a040855d..97a0731331a 100644 --- a/sound/pci/nm256/nm256.c +++ b/sound/pci/nm256/nm256.c @@ -263,9 +263,9 @@ struct nm256 { * PCI ids */ static struct pci_device_id snd_nm256_ids[] = { - {PCI_VENDOR_ID_NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, - {PCI_VENDOR_ID_NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, - {PCI_VENDOR_ID_NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + {PCI_VDEVICE(NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO), 0}, + {PCI_VDEVICE(NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO), 0}, + {PCI_VDEVICE(NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO), 0}, {0,}, }; diff --git a/sound/pci/rme32.c b/sound/pci/rme32.c index d7b966e7c4c..f977dba7cbd 100644 --- a/sound/pci/rme32.c +++ b/sound/pci/rme32.c @@ -227,12 +227,9 @@ struct rme32 { }; static struct pci_device_id snd_rme32_ids[] = { - {PCI_VENDOR_ID_XILINX_RME, PCI_DEVICE_ID_RME_DIGI32, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0,}, - {PCI_VENDOR_ID_XILINX_RME, PCI_DEVICE_ID_RME_DIGI32_8, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0,}, - {PCI_VENDOR_ID_XILINX_RME, PCI_DEVICE_ID_RME_DIGI32_PRO, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0,}, + {PCI_VDEVICE(XILINX_RME, PCI_DEVICE_ID_RME_DIGI32), 0,}, + {PCI_VDEVICE(XILINX_RME, PCI_DEVICE_ID_RME_DIGI32_8), 0,}, + {PCI_VDEVICE(XILINX_RME, PCI_DEVICE_ID_RME_DIGI32_PRO), 0,}, {0,} }; diff --git a/sound/pci/rme96.c b/sound/pci/rme96.c index 55fb1c131f5..2ba5c0fd55d 100644 --- a/sound/pci/rme96.c +++ b/sound/pci/rme96.c @@ -232,14 +232,10 @@ struct rme96 { }; static struct pci_device_id snd_rme96_ids[] = { - { PCI_VENDOR_ID_XILINX, PCI_DEVICE_ID_RME_DIGI96, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, - { PCI_VENDOR_ID_XILINX, PCI_DEVICE_ID_RME_DIGI96_8, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, - { PCI_VENDOR_ID_XILINX, PCI_DEVICE_ID_RME_DIGI96_8_PRO, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, - { PCI_VENDOR_ID_XILINX, PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, + { PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96), 0, }, + { PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96_8), 0, }, + { PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96_8_PRO), 0, }, + { PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST), 0, }, { 0, } }; diff --git a/sound/pci/sonicvibes.c b/sound/pci/sonicvibes.c index 7dc60ad4772..1f6406c4534 100644 --- a/sound/pci/sonicvibes.c +++ b/sound/pci/sonicvibes.c @@ -243,7 +243,7 @@ struct sonicvibes { }; static struct pci_device_id snd_sonic_ids[] = { - { 0x5333, 0xca00, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, + { PCI_VDEVICE(S3, 0xca00), 0, }, { 0, } }; diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c index 949fcaf6b70..acfa4760da4 100644 --- a/sound/pci/via82xx.c +++ b/sound/pci/via82xx.c @@ -402,9 +402,9 @@ struct via82xx { static struct pci_device_id snd_via82xx_ids[] = { /* 0x1106, 0x3058 */ - { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_CARD_VIA686, }, /* 686A */ + { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C686_5), TYPE_CARD_VIA686, }, /* 686A */ /* 0x1106, 0x3059 */ - { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_CARD_VIA8233, }, /* VT8233 */ + { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8233_5), TYPE_CARD_VIA8233, }, /* VT8233 */ { 0, } }; diff --git a/sound/pci/via82xx_modem.c b/sound/pci/via82xx_modem.c index 0d54e3503c1..47eb61561df 100644 --- a/sound/pci/via82xx_modem.c +++ b/sound/pci/via82xx_modem.c @@ -261,7 +261,7 @@ struct via82xx_modem { }; static struct pci_device_id snd_via82xx_modem_ids[] = { - { 0x1106, 0x3068, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_CARD_VIA82XX_MODEM, }, + { PCI_VDEVICE(VIA, 0x3068), TYPE_CARD_VIA82XX_MODEM, }, { 0, } }; diff --git a/sound/pci/ymfpci/ymfpci.c b/sound/pci/ymfpci/ymfpci.c index 4af66661f9b..e6b18b90d45 100644 --- a/sound/pci/ymfpci/ymfpci.c +++ b/sound/pci/ymfpci/ymfpci.c @@ -67,12 +67,12 @@ module_param_array(rear_switch, bool, NULL, 0444); MODULE_PARM_DESC(rear_switch, "Enable shared rear/line-in switch"); static struct pci_device_id snd_ymfpci_ids[] = { - { 0x1073, 0x0004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* YMF724 */ - { 0x1073, 0x000d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* YMF724F */ - { 0x1073, 0x000a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* YMF740 */ - { 0x1073, 0x000c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* YMF740C */ - { 0x1073, 0x0010, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* YMF744 */ - { 0x1073, 0x0012, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* YMF754 */ + { PCI_VDEVICE(YAMAHA, 0x0004), 0, }, /* YMF724 */ + { PCI_VDEVICE(YAMAHA, 0x000d), 0, }, /* YMF724F */ + { PCI_VDEVICE(YAMAHA, 0x000a), 0, }, /* YMF740 */ + { PCI_VDEVICE(YAMAHA, 0x000c), 0, }, /* YMF740C */ + { PCI_VDEVICE(YAMAHA, 0x0010), 0, }, /* YMF744 */ + { PCI_VDEVICE(YAMAHA, 0x0012), 0, }, /* YMF754 */ { 0, } }; -- cgit v1.2.3 From 0d7392e54435476243ce08ba57745ab52d639cbb Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Wed, 24 Jun 2009 23:18:02 -0700 Subject: sound: Use PCI_VDEVICE for CREATIVE and ECTIVA Here's a patch on top of the others to use CREATIVE and ECTIVA Signed-off-by: Joe Perches Signed-off-by: Takashi Iwai --- sound/pci/ca0106/ca0106_main.c | 2 +- sound/pci/emu10k1/emu10k1.c | 6 +++--- sound/pci/emu10k1/emu10k1x.c | 2 +- sound/pci/ens1370.c | 2 +- 4 files changed, 6 insertions(+), 6 deletions(-) diff --git a/sound/pci/ca0106/ca0106_main.c b/sound/pci/ca0106/ca0106_main.c index 57b992a5c05..f24bf1ecb36 100644 --- a/sound/pci/ca0106/ca0106_main.c +++ b/sound/pci/ca0106/ca0106_main.c @@ -1876,7 +1876,7 @@ static int snd_ca0106_resume(struct pci_dev *pci) // PCI IDs static struct pci_device_id snd_ca0106_ids[] = { - { 0x1102, 0x0007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* Audigy LS or Live 24bit */ + { PCI_VDEVICE(CREATIVE, 0x0007), 0 }, /* Audigy LS or Live 24bit */ { 0, } }; MODULE_DEVICE_TABLE(pci, snd_ca0106_ids); diff --git a/sound/pci/emu10k1/emu10k1.c b/sound/pci/emu10k1/emu10k1.c index c7f3b994101..168af67d938 100644 --- a/sound/pci/emu10k1/emu10k1.c +++ b/sound/pci/emu10k1/emu10k1.c @@ -77,9 +77,9 @@ MODULE_PARM_DESC(subsystem, "Force card subsystem model."); * Class 0401: 1102:0008 (rev 00) Subsystem: 1102:1001 -> Audigy2 Value Model:SB0400 */ static struct pci_device_id snd_emu10k1_ids[] = { - { 0x1102, 0x0002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* EMU10K1 */ - { 0x1102, 0x0004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 }, /* Audigy */ - { 0x1102, 0x0008, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 }, /* Audigy 2 Value SB0400 */ + { PCI_VDEVICE(CREATIVE, 0x0002), 0 }, /* EMU10K1 */ + { PCI_VDEVICE(CREATIVE, 0x0004), 1 }, /* Audigy */ + { PCI_VDEVICE(CREATIVE, 0x0008), 1 }, /* Audigy 2 Value SB0400 */ { 0, } }; diff --git a/sound/pci/emu10k1/emu10k1x.c b/sound/pci/emu10k1/emu10k1x.c index 4d3ad793e98..36e08bd2b3c 100644 --- a/sound/pci/emu10k1/emu10k1x.c +++ b/sound/pci/emu10k1/emu10k1x.c @@ -1607,7 +1607,7 @@ static void __devexit snd_emu10k1x_remove(struct pci_dev *pci) // PCI IDs static struct pci_device_id snd_emu10k1x_ids[] = { - { 0x1102, 0x0006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* Dell OEM version (EMU10K1) */ + { PCI_VDEVICE(CREATIVE, 0x0006), 0 }, /* Dell OEM version (EMU10K1) */ { 0, } }; MODULE_DEVICE_TABLE(pci, snd_emu10k1x_ids); diff --git a/sound/pci/ens1370.c b/sound/pci/ens1370.c index d589bbc516e..2b82c5c723e 100644 --- a/sound/pci/ens1370.c +++ b/sound/pci/ens1370.c @@ -450,7 +450,7 @@ static struct pci_device_id snd_audiopci_ids[] = { #ifdef CHIP1371 { PCI_VDEVICE(ENSONIQ, 0x1371), 0, }, /* ES1371 */ { PCI_VDEVICE(ENSONIQ, 0x5880), 0, }, /* ES1373 - CT5880 */ - { 0x1102, 0x8938, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* Ectiva EV1938 */ + { PCI_VDEVICE(ECTIVA, 0x8938), 0, }, /* Ectiva EV1938 */ #endif { 0, } }; -- cgit v1.2.3 From 342ba1039ad7cf464c7927ddf1ddc10d48a3716b Mon Sep 17 00:00:00 2001 From: Thadeu Lima de Souza Cascardo Date: Wed, 24 Jun 2009 18:39:09 -0300 Subject: mtd: cmdlineparts: Use 64-bit format when printing a debug message. Commit 69423d99fc182a81f3c5db3eb5c140acc6fc64be ("[MTD] update internal API to support 64-bit device size") has changed some structure values to 64-bit and has not updated this debug message, since it's not built by default. Signed-off-by: Thadeu Lima de Souza Cascardo Signed-off-by: David Woodhouse --- drivers/mtd/cmdlinepart.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c index 5011fa73f91..1479da6d3aa 100644 --- a/drivers/mtd/cmdlinepart.c +++ b/drivers/mtd/cmdlinepart.c @@ -194,7 +194,7 @@ static struct mtd_partition * newpart(char *s, parts[this_part].name = extra_mem; extra_mem += name_len + 1; - dbg(("partition %d: name <%s>, offset %x, size %x, mask flags %x\n", + dbg(("partition %d: name <%s>, offset %llx, size %llx, mask flags %x\n", this_part, parts[this_part].name, parts[this_part].offset, -- cgit v1.2.3 From ae27a7ab2c74f9c075e03730c5f493163d048c62 Mon Sep 17 00:00:00 2001 From: Thadeu Lima de Souza Cascardo Date: Wed, 24 Jun 2009 18:40:46 -0300 Subject: mtd: atmel_nand: Fix typo s/parititions/partitions/ Signed-off-by: Thadeu Lima de Souza Cascardo Signed-off-by: David Woodhouse --- drivers/mtd/nand/atmel_nand.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index 2802992b39d..20c828ba940 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -534,7 +534,7 @@ static int __init atmel_nand_probe(struct platform_device *pdev) &num_partitions); if ((!partitions) || (num_partitions == 0)) { - printk(KERN_ERR "atmel_nand: No parititions defined, or unsupported device.\n"); + printk(KERN_ERR "atmel_nand: No partitions defined, or unsupported device.\n"); res = ENXIO; goto err_no_partitions; } -- cgit v1.2.3 From 7e895cfaad51c862932ea7db0c428761076412e5 Mon Sep 17 00:00:00 2001 From: Tim Blechmann Date: Thu, 25 Jun 2009 09:41:46 +0200 Subject: ALSA: lx6464es - configure ethersound io channels as long as the io channel number is not set by the driver, the card is not visible from the ethersound network Signed-off-by: Tim Blechmann Signed-off-by: Takashi Iwai --- sound/pci/lx6464es/lx6464es.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/sound/pci/lx6464es/lx6464es.c b/sound/pci/lx6464es/lx6464es.c index 18da2ef04d0..11b8c6514b3 100644 --- a/sound/pci/lx6464es/lx6464es.c +++ b/sound/pci/lx6464es/lx6464es.c @@ -654,13 +654,12 @@ static int __devinit lx_init_ethersound_config(struct lx6464es *chip) int i; u32 orig_conf_es = lx_dsp_reg_read(chip, eReg_CONFES); - u32 default_conf_es = (64 << IOCR_OUTPUTS_OFFSET) | + /* configure 64 io channels */ + u32 conf_es = (orig_conf_es & CONFES_READ_PART_MASK) | (64 << IOCR_INPUTS_OFFSET) | + (64 << IOCR_OUTPUTS_OFFSET) | (FREQ_RATIO_SINGLE_MODE << FREQ_RATIO_OFFSET); - u32 conf_es = (orig_conf_es & CONFES_READ_PART_MASK) - | (default_conf_es & CONFES_WRITE_PART_MASK); - snd_printdd("->lx_init_ethersound\n"); chip->freq_ratio = FREQ_RATIO_SINGLE_MODE; -- cgit v1.2.3 From 00e54d087afb3867b0b461aef6c1ff433d0df564 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Thu, 25 Jun 2009 14:05:27 +0800 Subject: ftrace: Remove duplicate newline Before: # echo 'sys_open:traceon:' > set_ftrace_filter # echo 'sys_close:traceoff:5' > set_ftrace_filter # cat set_ftrace_filter #### all functions enabled #### sys_open:traceon:unlimited sys_close:traceoff:count=0 After: # cat set_ftrace_filter #### all functions enabled #### sys_open:traceon:unlimited sys_close:traceoff:count=0 Signed-off-by: Li Zefan Cc: Steven Rostedt Cc: Frederic Weisbecker LKML-Reference: <4A4313A7.7030105@cn.fujitsu.com> Signed-off-by: Ingo Molnar --- kernel/trace/trace_functions.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/kernel/trace/trace_functions.c b/kernel/trace/trace_functions.c index 90f13476483..7402144bff2 100644 --- a/kernel/trace/trace_functions.c +++ b/kernel/trace/trace_functions.c @@ -302,8 +302,7 @@ ftrace_trace_onoff_print(struct seq_file *m, unsigned long ip, if (count == -1) seq_printf(m, ":unlimited\n"); else - seq_printf(m, ":count=%ld", count); - seq_putc(m, '\n'); + seq_printf(m, ":count=%ld\n", count); return 0; } -- cgit v1.2.3 From 1155de47cd66d0c496d5a6fb2223e980ef1285b2 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Thu, 25 Jun 2009 14:30:12 +0900 Subject: ring-buffer: Make it generally available In hunting down the cause for the hwlat_detector ring buffer spew in my failed -next builds it became obvious that folks are now treating ring_buffer as something that is generic independent of tracing and thus, suitable for public driver consumption. Given that there are only a few minor areas in ring_buffer that have any reliance on CONFIG_TRACING or CONFIG_FUNCTION_TRACER, provide stubs for those and make it generally available. Signed-off-by: Paul Mundt Cc: Jon Masters Cc: Steven Rostedt LKML-Reference: <20090625053012.GB19944@linux-sh.org> Signed-off-by: Ingo Molnar --- kernel/Makefile | 1 + kernel/trace/ring_buffer.c | 11 +++++++++++ kernel/trace/trace.h | 7 +++++++ 3 files changed, 19 insertions(+) diff --git a/kernel/Makefile b/kernel/Makefile index 0a32cb21ec9..0630e293cd4 100644 --- a/kernel/Makefile +++ b/kernel/Makefile @@ -96,6 +96,7 @@ obj-$(CONFIG_HAVE_GENERIC_DMA_COHERENT) += dma-coherent.o obj-$(CONFIG_FUNCTION_TRACER) += trace/ obj-$(CONFIG_TRACING) += trace/ obj-$(CONFIG_X86_DS) += trace/ +obj-$(CONFIG_RING_BUFFER) += trace/ obj-$(CONFIG_SMP) += sched_cpupri.o obj-$(CONFIG_SLOW_WORK) += slow-work.o obj-$(CONFIG_PERF_COUNTERS) += perf_counter.o diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 04dac263825..bf27bb7a63e 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -1563,6 +1563,8 @@ rb_reserve_next_event(struct ring_buffer_per_cpu *cpu_buffer, return NULL; } +#ifdef CONFIG_TRACING + #define TRACE_RECURSIVE_DEPTH 16 static int trace_recursive_lock(void) @@ -1593,6 +1595,13 @@ static void trace_recursive_unlock(void) current->trace_recursion--; } +#else + +#define trace_recursive_lock() (0) +#define trace_recursive_unlock() do { } while (0) + +#endif + static DEFINE_PER_CPU(int, rb_need_resched); /** @@ -3104,6 +3113,7 @@ int ring_buffer_read_page(struct ring_buffer *buffer, } EXPORT_SYMBOL_GPL(ring_buffer_read_page); +#ifdef CONFIG_TRACING static ssize_t rb_simple_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *ppos) @@ -3171,6 +3181,7 @@ static __init int rb_init_debugfs(void) } fs_initcall(rb_init_debugfs); +#endif #ifdef CONFIG_HOTPLUG_CPU static int rb_cpu_notify(struct notifier_block *self, diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 6e735d4771f..3548ae5cc78 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -597,6 +597,7 @@ print_graph_function(struct trace_iterator *iter) extern struct pid *ftrace_pid_trace; +#ifdef CONFIG_FUNCTION_TRACER static inline int ftrace_trace_task(struct task_struct *task) { if (!ftrace_pid_trace) @@ -604,6 +605,12 @@ static inline int ftrace_trace_task(struct task_struct *task) return test_tsk_trace_trace(task); } +#else +static inline int ftrace_trace_task(struct task_struct *task) +{ + return 1; +} +#endif /* * trace_iterator_flags is an enumeration that defines bit -- cgit v1.2.3 From a9d9058abab4ac17b79d500506e6c74bd16cecdc Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Thu, 25 Jun 2009 10:16:11 +0100 Subject: kmemleak: Allow the early log buffer to be configurable. (feature suggested by Sergey Senozhatsky) Kmemleak needs to track all the memory allocations but some of these happen before kmemleak is initialised. These are stored in an internal buffer which may be exceeded in some kernel configurations. This patch adds a configuration option with a default value of 400 and also removes the stack dump when the early log buffer is exceeded. Signed-off-by: Catalin Marinas Acked-by: Sergey Senozhatsky --- Documentation/kmemleak.txt | 4 ++++ lib/Kconfig.debug | 12 ++++++++++++ mm/kmemleak.c | 5 +++-- 3 files changed, 19 insertions(+), 2 deletions(-) diff --git a/Documentation/kmemleak.txt b/Documentation/kmemleak.txt index 0112da3b9ab..f655308064d 100644 --- a/Documentation/kmemleak.txt +++ b/Documentation/kmemleak.txt @@ -41,6 +41,10 @@ Memory scanning parameters can be modified at run-time by writing to the Kmemleak can also be disabled at boot-time by passing "kmemleak=off" on the kernel command line. +Memory may be allocated or freed before kmemleak is initialised and +these actions are stored in an early log buffer. The size of this buffer +is configured via the CONFIG_DEBUG_KMEMLEAK_EARLY_LOG_SIZE option. + Basic Algorithm --------------- diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 4c32b1a1a06..12327b2bb78 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -359,6 +359,18 @@ config DEBUG_KMEMLEAK In order to access the kmemleak file, debugfs needs to be mounted (usually at /sys/kernel/debug). +config DEBUG_KMEMLEAK_EARLY_LOG_SIZE + int "Maximum kmemleak early log entries" + depends on DEBUG_KMEMLEAK + range 200 2000 + default 400 + help + Kmemleak must track all the memory allocations to avoid + reporting false positives. Since memory may be allocated or + freed before kmemleak is initialised, an early log buffer is + used to store these actions. If kmemleak reports "early log + buffer exceeded", please increase this value. + config DEBUG_KMEMLEAK_TEST tristate "Simple test for the kernel memory leak detector" depends on DEBUG_KMEMLEAK diff --git a/mm/kmemleak.c b/mm/kmemleak.c index c96f2c8700a..17096d1b59b 100644 --- a/mm/kmemleak.c +++ b/mm/kmemleak.c @@ -235,7 +235,7 @@ struct early_log { }; /* early logging buffer and current position */ -static struct early_log early_log[200]; +static struct early_log early_log[CONFIG_DEBUG_KMEMLEAK_EARLY_LOG_SIZE]; static int crt_early_log; static void kmemleak_disable(void); @@ -696,7 +696,8 @@ static void log_early(int op_type, const void *ptr, size_t size, struct early_log *log; if (crt_early_log >= ARRAY_SIZE(early_log)) { - kmemleak_stop("Early log buffer exceeded\n"); + pr_warning("Early log buffer exceeded\n"); + kmemleak_disable(); return; } -- cgit v1.2.3 From 76c64c5e4c47b6d28deb3cae8dfa07a93c2229dc Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Wed, 24 Jun 2009 21:08:36 +0200 Subject: perf record: Fix filemap pathname parsing in /proc/pid/maps Looking backward for the first space from the end of a line in /proc/pid/maps does not find the start of the pathname of the mapped file if it contains a space. Since the only slashes we have in this file occur in the (absolute!) pathname column of file mappings, looking for the first slash in a line is a safe method to find the name. Signed-off-by: Johannes Weiner Cc: Stefani Seibold Cc: Andrew Morton Cc: "Eric W. Biederman" Cc: Alexey Dobriyan Cc: Peter Zijlstra LKML-Reference: <20090624190835.GA25548@cmpxchg.org> Signed-off-by: Ingo Molnar --- tools/perf/builtin-record.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index d7ebbd75754..9b899ba1b41 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -306,12 +306,11 @@ static void pid_synthesize_mmap_samples(pid_t pid) continue; pbf += n + 3; if (*pbf == 'x') { /* vm_exec */ - char *execname = strrchr(bf, ' '); + char *execname = strchr(bf, '/'); - if (execname == NULL || execname[1] != '/') + if (execname == NULL) continue; - execname += 1; size = strlen(execname); execname[size - 1] = '\0'; /* Remove \n */ memcpy(mmap_ev.filename, execname, size); -- cgit v1.2.3 From 06813f6c743420c16f9248ab59bd2e68a2de57ba Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Thu, 25 Jun 2009 17:16:07 +0530 Subject: perf_counter tools: Check for valid cache operations Made new table for cache operartion stat 'hw_cache_stat' as: L1I : Read and prefetch only ITLB and BPU : Read-only introduce is_cache_op_valid() for cache operation validity And checks for valid cache operations. Reported-by : Ingo Molnar Signed-off-by: Jaswinder Singh Rajput Cc: Peter Zijlstra LKML-Reference: <1245930367.5308.33.camel@localhost.localdomain> Signed-off-by: Ingo Molnar --- tools/perf/util/parse-events.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 06af2fadcd8..7939a21130d 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -90,6 +90,34 @@ static char *hw_cache_result[][MAX_ALIASES] = { { "Miss" }, }; +#define C(x) PERF_COUNT_HW_CACHE_##x +#define CACHE_READ (1 << C(OP_READ)) +#define CACHE_WRITE (1 << C(OP_WRITE)) +#define CACHE_PREFETCH (1 << C(OP_PREFETCH)) +#define COP(x) (1 << x) + +/* + * cache operartion stat + * L1I : Read and prefetch only + * ITLB and BPU : Read-only + */ +static unsigned long hw_cache_stat[C(MAX)] = { + [C(L1D)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH), + [C(L1I)] = (CACHE_READ | CACHE_PREFETCH), + [C(LL)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH), + [C(DTLB)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH), + [C(ITLB)] = (CACHE_READ), + [C(BPU)] = (CACHE_READ), +}; + +static int is_cache_op_valid(u8 cache_type, u8 cache_op) +{ + if (hw_cache_stat[cache_type] & COP(cache_op)) + return 1; /* valid */ + else + return 0; /* invalid */ +} + char *event_name(int counter) { u64 config = attrs[counter].config; @@ -123,6 +151,8 @@ char *event_name(int counter) if (cache_result > PERF_COUNT_HW_CACHE_RESULT_MAX) return "unknown-ext-hardware-cache-result"; + if (!is_cache_op_valid(cache_type, cache_op)) + return "invalid-cache"; sprintf(name, "%s-Cache-%s-%ses", hw_cache[cache_type][0], hw_cache_op[cache_op][0], @@ -179,6 +209,9 @@ parse_generic_hw_symbols(const char *str, struct perf_counter_attr *attr) if (cache_op == -1) cache_op = PERF_COUNT_HW_CACHE_OP_READ; + if (!is_cache_op_valid(cache_type, cache_op)) + return -EINVAL; + cache_result = parse_aliases(str, hw_cache_result, PERF_COUNT_HW_CACHE_RESULT_MAX); /* -- cgit v1.2.3 From 1fbcf37128cc19bd67d9a736fb634dc444e907d7 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Thu, 25 Jun 2009 21:17:19 +0900 Subject: sh: Kill off unused DEBUG_BOOTMEM symbol. This was killed off in generic code some time ago, kill off the left over symbol. Signed-off-by: Paul Mundt --- arch/sh/Kconfig.debug | 4 ---- 1 file changed, 4 deletions(-) diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug index 8ece0b5bd02..39224b57c6e 100644 --- a/arch/sh/Kconfig.debug +++ b/arch/sh/Kconfig.debug @@ -61,10 +61,6 @@ config EARLY_PRINTK select both the EARLY_SCIF_CONSOLE and SH_STANDARD_BIOS, using the kernel command line option to toggle back and forth. -config DEBUG_BOOTMEM - depends on DEBUG_KERNEL - bool "Debug BOOTMEM initialization" - config DEBUG_STACKOVERFLOW bool "Check for stack overflows" depends on DEBUG_KERNEL && SUPERH32 -- cgit v1.2.3 From aa715284b4d28cabde6c25c568d769a6be712bc8 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 25 Jun 2009 14:27:58 +0200 Subject: futex: request only one page from get_user_pages() Yanmin noticed that fault_in_user_writeable() requests 4 pages instead of one. That's the result of blindly trusting Linus' proposal :) I even looked up the prototype to verify the correctness: the argument in question is confusingly enough named "len" while in reality it means number of pages. Pointed-out-by: Yanmin Zhang Signed-off-by: Thomas Gleixner --- kernel/futex.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/futex.c b/kernel/futex.c index 1c337112335..794c862125f 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -299,7 +299,7 @@ void put_futex_key(int fshared, union futex_key *key) static int fault_in_user_writeable(u32 __user *uaddr) { int ret = get_user_pages(current, current->mm, (unsigned long)uaddr, - sizeof(*uaddr), 1, 0, NULL, NULL); + 1, 1, 0, NULL, NULL); return ret < 0 ? ret : 0; } -- cgit v1.2.3 From dd5e8e6b1d4c218d2bafe002231ec460459ab5c4 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Thu, 25 Jun 2009 13:26:09 +0300 Subject: MAINTAINERS: Add entry for twl4030 series soc codec driver New MAINTAINERS entry for twl4030 series soc codec driver with Peter Ujfalusi as maintainer. Signed-off-by: Peter Ujfalusi Signed-off-by: Mark Brown --- MAINTAINERS | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 1ae5a81f443..a20ac54f025 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5523,6 +5523,13 @@ M: dsaxena@plexity.net S: Maintained F: drivers/char/hw_random/omap-rng.c +TI TWL4030 SERIES SOC CODEC DRIVER +P: Peter Ujfalusi +M: peter.ujfalusi@nokia.com +L: alsa-devel@alsa-project.org (moderated for non-subscribers) +S: Maintained +F: sound/soc/codecs/twl4030* + TIPC NETWORK LAYER P: Per Liden M: per.liden@ericsson.com -- cgit v1.2.3 From 7aa5514e7170c6179272bc638a980adc1738fd29 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Mon, 22 Jun 2009 09:23:36 +0100 Subject: [ARM] 5560/1: Avoid buffer overrun in case of an invalid IRQ handle_bad_irq() expects the IRQ number to be valid (used for statistics), so it cannot be called with an illegal vector. The problem was reported by a static analysis tool. The change makes bad_irq_desc redundant, so delete it. Signed-off-by: Aaro Koskinen Signed-off-by: Russell King --- arch/arm/kernel/irq.c | 24 ++++++------------------ 1 file changed, 6 insertions(+), 18 deletions(-) diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c index 096f600dc8d..b7c3490eaa2 100644 --- a/arch/arm/kernel/irq.c +++ b/arch/arm/kernel/irq.c @@ -98,17 +98,6 @@ unlock: return 0; } -/* Handle bad interrupts */ -static struct irq_desc bad_irq_desc = { - .handle_irq = handle_bad_irq, - .lock = __SPIN_LOCK_UNLOCKED(bad_irq_desc.lock), -}; - -#ifdef CONFIG_CPUMASK_OFFSTACK -/* We are not allocating bad_irq_desc.affinity or .pending_mask */ -#error "ARM architecture does not support CONFIG_CPUMASK_OFFSTACK." -#endif - /* * do_IRQ handles all hardware IRQ's. Decoded IRQs should not * come via this function. Instead, they should provide their @@ -124,10 +113,13 @@ asmlinkage void __exception asm_do_IRQ(unsigned int irq, struct pt_regs *regs) * Some hardware gives randomly wrong interrupts. Rather * than crashing, do something sensible. */ - if (irq >= NR_IRQS) - handle_bad_irq(irq, &bad_irq_desc); - else + if (unlikely(irq >= NR_IRQS)) { + if (printk_ratelimit()) + printk(KERN_WARNING "Bad IRQ%u\n", irq); + ack_bad_irq(irq); + } else { generic_handle_irq(irq); + } /* AT91 specific workaround */ irq_finish(irq); @@ -165,10 +157,6 @@ void __init init_IRQ(void) for (irq = 0; irq < NR_IRQS; irq++) irq_desc[irq].status |= IRQ_NOREQUEST | IRQ_NOPROBE; -#ifdef CONFIG_SMP - cpumask_setall(bad_irq_desc.affinity); - bad_irq_desc.node = smp_processor_id(); -#endif init_arch_irq(); } -- cgit v1.2.3 From f6430a938dc6d77e33722aaf6a58382b3423935d Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Wed, 24 Jun 2009 23:38:56 +0100 Subject: [ARM] 5565/2: Use PAGE_SIZE and RO_DATA() in link script Update the link script for ARM to use PAGE_SIZE instead of hard- coded 4096. Also the old RODATA macro is deprecated for the RO_DATA(PAGE_SIZE) macro. As a consequence the PAGE_SIZE was changed from (1UL << PAGE_SHIFT) to (_AC(1,UL) << PAGE_SHIFT) because the linker does not understand the "UL" suffix to numeric constants. Signed-off-by: Linus Walleij Signed-off-by: Russell King --- arch/arm/include/asm/page.h | 2 +- arch/arm/kernel/vmlinux.lds.S | 15 ++++++++------- 2 files changed, 9 insertions(+), 8 deletions(-) diff --git a/arch/arm/include/asm/page.h b/arch/arm/include/asm/page.h index be962c1349c..9c746af1bf6 100644 --- a/arch/arm/include/asm/page.h +++ b/arch/arm/include/asm/page.h @@ -12,7 +12,7 @@ /* PAGE_SHIFT determines the page size */ #define PAGE_SHIFT 12 -#define PAGE_SIZE (1UL << PAGE_SHIFT) +#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) #ifndef __ASSEMBLY__ diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S index 4340bf3d2c8..69371028a20 100644 --- a/arch/arm/kernel/vmlinux.lds.S +++ b/arch/arm/kernel/vmlinux.lds.S @@ -6,6 +6,7 @@ #include #include #include +#include OUTPUT_ARCH(arm) ENTRY(stext) @@ -63,7 +64,7 @@ SECTIONS usr/built-in.o(.init.ramfs) __initramfs_end = .; #endif - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); __per_cpu_load = .; __per_cpu_start = .; *(.data.percpu.page_aligned) @@ -73,7 +74,7 @@ SECTIONS #ifndef CONFIG_XIP_KERNEL __init_begin = _stext; INIT_DATA - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); __init_end = .; #endif } @@ -118,7 +119,7 @@ SECTIONS *(.got) /* Global offset table */ } - RODATA + RO_DATA(PAGE_SIZE) _etext = .; /* End of text and rodata section */ @@ -158,17 +159,17 @@ SECTIONS *(.data.init_task) #ifdef CONFIG_XIP_KERNEL - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); __init_begin = .; INIT_DATA - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); __init_end = .; #endif - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); __nosave_begin = .; *(.data.nosave) - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); __nosave_end = .; /* -- cgit v1.2.3 From 14744d7da2e6ab5c6d8e82c84dc280e3c0dd8552 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Thu, 25 Jun 2009 14:28:49 +0200 Subject: sound: oxygen: make mic volume control mono The microphone input and its volume register have only one channel, so we have to make the corresponding mixer control a mono control. Signed-off-by: Clemens Ladisch Signed-off-by: Takashi Iwai --- sound/pci/oxygen/oxygen_mixer.c | 28 ++++++++++++++++++---------- 1 file changed, 18 insertions(+), 10 deletions(-) diff --git a/sound/pci/oxygen/oxygen_mixer.c b/sound/pci/oxygen/oxygen_mixer.c index 304da169bfd..5401c547c4e 100644 --- a/sound/pci/oxygen/oxygen_mixer.c +++ b/sound/pci/oxygen/oxygen_mixer.c @@ -575,8 +575,10 @@ static int ac97_switch_put(struct snd_kcontrol *ctl, static int ac97_volume_info(struct snd_kcontrol *ctl, struct snd_ctl_elem_info *info) { + int stereo = (ctl->private_value >> 16) & 1; + info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; - info->count = 2; + info->count = stereo ? 2 : 1; info->value.integer.min = 0; info->value.integer.max = 0x1f; return 0; @@ -587,6 +589,7 @@ static int ac97_volume_get(struct snd_kcontrol *ctl, { struct oxygen *chip = ctl->private_data; unsigned int codec = (ctl->private_value >> 24) & 1; + int stereo = (ctl->private_value >> 16) & 1; unsigned int index = ctl->private_value & 0xff; u16 reg; @@ -594,7 +597,8 @@ static int ac97_volume_get(struct snd_kcontrol *ctl, reg = oxygen_read_ac97(chip, codec, index); mutex_unlock(&chip->mutex); value->value.integer.value[0] = 31 - (reg & 0x1f); - value->value.integer.value[1] = 31 - ((reg >> 8) & 0x1f); + if (stereo) + value->value.integer.value[1] = 31 - ((reg >> 8) & 0x1f); return 0; } @@ -603,6 +607,7 @@ static int ac97_volume_put(struct snd_kcontrol *ctl, { struct oxygen *chip = ctl->private_data; unsigned int codec = (ctl->private_value >> 24) & 1; + int stereo = (ctl->private_value >> 16) & 1; unsigned int index = ctl->private_value & 0xff; u16 oldreg, newreg; int change; @@ -612,8 +617,11 @@ static int ac97_volume_put(struct snd_kcontrol *ctl, newreg = oldreg; newreg = (newreg & ~0x1f) | (31 - (value->value.integer.value[0] & 0x1f)); - newreg = (newreg & ~0x1f00) | - ((31 - (value->value.integer.value[0] & 0x1f)) << 8); + if (stereo) + newreg = (newreg & ~0x1f00) | + ((31 - (value->value.integer.value[1] & 0x1f)) << 8); + else + newreg = (newreg & ~0x1f00) | ((newreg & 0x1f) << 8); change = newreg != oldreg; if (change) oxygen_write_ac97(chip, codec, index, newreg); @@ -673,7 +681,7 @@ static int ac97_fp_rec_volume_put(struct snd_kcontrol *ctl, .private_value = ((codec) << 24) | ((invert) << 16) | \ ((bitnr) << 8) | (index), \ } -#define AC97_VOLUME(xname, codec, index) { \ +#define AC97_VOLUME(xname, codec, index, stereo) { \ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ .name = xname, \ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | \ @@ -682,7 +690,7 @@ static int ac97_fp_rec_volume_put(struct snd_kcontrol *ctl, .get = ac97_volume_get, \ .put = ac97_volume_put, \ .tlv = { .p = ac97_db_scale, }, \ - .private_value = ((codec) << 24) | (index), \ + .private_value = ((codec) << 24) | ((stereo) << 16) | (index), \ } static DECLARE_TLV_DB_SCALE(monitor_db_scale, -1000, 1000, 0); @@ -882,18 +890,18 @@ static const struct { }; static const struct snd_kcontrol_new ac97_controls[] = { - AC97_VOLUME("Mic Capture Volume", 0, AC97_MIC), + AC97_VOLUME("Mic Capture Volume", 0, AC97_MIC, 0), AC97_SWITCH("Mic Capture Switch", 0, AC97_MIC, 15, 1), AC97_SWITCH("Mic Boost (+20dB)", 0, AC97_MIC, 6, 0), AC97_SWITCH("Line Capture Switch", 0, AC97_LINE, 15, 1), - AC97_VOLUME("CD Capture Volume", 0, AC97_CD), + AC97_VOLUME("CD Capture Volume", 0, AC97_CD, 1), AC97_SWITCH("CD Capture Switch", 0, AC97_CD, 15, 1), - AC97_VOLUME("Aux Capture Volume", 0, AC97_AUX), + AC97_VOLUME("Aux Capture Volume", 0, AC97_AUX, 1), AC97_SWITCH("Aux Capture Switch", 0, AC97_AUX, 15, 1), }; static const struct snd_kcontrol_new ac97_fp_controls[] = { - AC97_VOLUME("Front Panel Playback Volume", 1, AC97_HEADPHONE), + AC97_VOLUME("Front Panel Playback Volume", 1, AC97_HEADPHONE, 1), AC97_SWITCH("Front Panel Playback Switch", 1, AC97_HEADPHONE, 15, 1), { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, -- cgit v1.2.3 From e5c59547791f171b280bc4c4b2c3ff171824c1a3 Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Thu, 25 Jun 2009 18:25:22 +0530 Subject: perf_counter tools: Shorten names for events Added new alias for events. On AMD box: $ ./perf stat -e l1d -e l1d-misses -e l1d-write -e l1d-prefetch -e l1d-prefetch-miss -e l1i -e l1i-misses -e l1i-prefetch -e l2 -e l2-misses -e l2-write -e dtlb -e dtlb-misses -e itlb -e itlb-misses -e bpu -e bpu-misses -- ls -lR /usr/include/ > /dev/null Before : Performance counter stats for 'ls -lR /usr/include/': 248064467 L1-data-Cache-Load-Referencees (scaled from 23.27%) 1001433 L1-data-Cache-Load-Misses (scaled from 23.34%) 153691 L1-data-Cache-Store-Referencees (scaled from 23.34%) 423248 L1-data-Cache-Prefetch-Referencees (scaled from 23.33%) 302138 L1-data-Cache-Prefetch-Misses (scaled from 23.25%) 251217546 L1-instruction-Cache-Load-Referencees (scaled from 23.25%) 5757005 L1-instruction-Cache-Load-Misses (scaled from 23.23%) 93435 L1-instruction-Cache-Prefetch-Referencees (scaled from 23.24%) 6496073 L2-Cache-Load-Referencees (scaled from 23.32%) 609485 L2-Cache-Load-Misses (scaled from 23.45%) 6876991 L2-Cache-Store-Referencees (scaled from 23.71%) 248922840 Data-TLB-Cache-Load-Referencees (scaled from 23.94%) 5828386 Data-TLB-Cache-Load-Misses (scaled from 24.17%) 257613506 Instruction-TLB-Cache-Load-Referencees (scaled from 24.20%) 6833 Instruction-TLB-Cache-Load-Misses (scaled from 23.88%) 109043606 Branch-Cache-Load-Referencees (scaled from 23.64%) 5552296 Branch-Cache-Load-Misses (scaled from 23.42%) 0.413702461 seconds time elapsed. After : Peformance counter stats for 'ls -lR /usr/include/': 266590464 L1-d$-loads (scaled from 23.03%) 1222273 L1-d$-load-misses (scaled from 23.58%) 146204 L1-d$-stores (scaled from 23.83%) 406344 L1-d$-prefetches (scaled from 24.09%) 283748 L1-d$-prefetch-misses (scaled from 24.10%) 249650965 L1-i$-loads (scaled from 23.80%) 3353961 L1-i$-load-misses (scaled from 23.82%) 104599 L1-i$-prefetches (scaled from 23.68%) 4836405 LLC-loads (scaled from 23.67%) 498214 LLC-load-misses (scaled from 23.66%) 4953994 LLC-stores (scaled from 23.64%) 243354097 dTLB-loads (scaled from 23.77%) 6468584 dTLB-load-misses (scaled from 23.74%) 249719549 iTLB-loads (scaled from 23.25%) 5060 iTLB-load-misses (scaled from 23.00%) 112343016 branch-loads (scaled from 22.76%) 5528876 branch-load-misses (scaled from 22.54%) 0.427154051 seconds time elapsed. Reported-by : Ingo Molnar Signed-off-by: Jaswinder Singh Rajput Cc: Peter Zijlstra LKML-Reference: <1245934522.5308.39.camel@hpdv5.satnam> Signed-off-by: Ingo Molnar --- tools/perf/util/parse-events.c | 45 ++++++++++++++++++++++++++---------------- 1 file changed, 28 insertions(+), 17 deletions(-) diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 7939a21130d..430f0608320 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -71,23 +71,23 @@ static char *sw_event_names[] = { #define MAX_ALIASES 8 static char *hw_cache[][MAX_ALIASES] = { - { "L1-data", "l1-d", "l1d" }, - { "L1-instruction", "l1-i", "l1i" }, - { "L2", "l2" }, - { "Data-TLB", "dtlb", "d-tlb" }, - { "Instruction-TLB", "itlb", "i-tlb" }, - { "Branch", "bpu" , "btb", "bpc" }, + { "L1-d$", "l1-d", "L1-data", }, + { "L1-i$", "l1-i", "L1-instruction", }, + { "LLC", "L2" }, + { "dTLB", "d-tlb", "Data-TLB", }, + { "iTLB", "i-tlb", "Instruction-TLB", }, + { "branch", "branches", "bpu", "btb", "bpc", }, }; static char *hw_cache_op[][MAX_ALIASES] = { - { "Load", "read" }, - { "Store", "write" }, - { "Prefetch", "speculative-read", "speculative-load" }, + { "load", "loads", "read", }, + { "store", "stores", "write", }, + { "prefetch", "prefetches", "speculative-read", "speculative-load", }, }; static char *hw_cache_result[][MAX_ALIASES] = { - { "Reference", "ops", "access" }, - { "Miss" }, + { "refs", "Reference", "ops", "access", }, + { "misses", "miss", }, }; #define C(x) PERF_COUNT_HW_CACHE_##x @@ -118,6 +118,22 @@ static int is_cache_op_valid(u8 cache_type, u8 cache_op) return 0; /* invalid */ } +static char *event_cache_name(u8 cache_type, u8 cache_op, u8 cache_result) +{ + static char name[50]; + + if (cache_result) { + sprintf(name, "%s-%s-%s", hw_cache[cache_type][0], + hw_cache_op[cache_op][0], + hw_cache_result[cache_result][0]); + } else { + sprintf(name, "%s-%s", hw_cache[cache_type][0], + hw_cache_op[cache_op][1]); + } + + return name; +} + char *event_name(int counter) { u64 config = attrs[counter].config; @@ -137,7 +153,6 @@ char *event_name(int counter) case PERF_TYPE_HW_CACHE: { u8 cache_type, cache_op, cache_result; - static char name[100]; cache_type = (config >> 0) & 0xff; if (cache_type > PERF_COUNT_HW_CACHE_MAX) @@ -153,12 +168,8 @@ char *event_name(int counter) if (!is_cache_op_valid(cache_type, cache_op)) return "invalid-cache"; - sprintf(name, "%s-Cache-%s-%ses", - hw_cache[cache_type][0], - hw_cache_op[cache_op][0], - hw_cache_result[cache_result][0]); - return name; + return event_cache_name(cache_type, cache_op, cache_result); } case PERF_TYPE_SOFTWARE: -- cgit v1.2.3 From e08afeb7e69f45e4ab9fbb8530fe433484b96606 Mon Sep 17 00:00:00 2001 From: Brian King Date: Tue, 23 Jun 2009 17:14:01 -0500 Subject: [SCSI] ibmvscsi: Fix module load hang Fixes a regression seen in the ibmvscsi driver when using the VSCSI server in SLES 9 and SLES 10. The VSCSI server in these releases has a bug in it in which it does not send responses to unknown MADs. Check the OS Type field in the adapter info response and do not send these unsupported commands when talking to an older server. Signed-off-by: Brian King Signed-off-by: James Bottomley --- drivers/scsi/ibmvscsi/ibmvscsi.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c index 869a11bdccb..9928704e235 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.c +++ b/drivers/scsi/ibmvscsi/ibmvscsi.c @@ -1095,9 +1095,14 @@ static void adapter_info_rsp(struct srp_event_struct *evt_struct) MAX_INDIRECT_BUFS); hostdata->host->sg_tablesize = MAX_INDIRECT_BUFS; } + + if (hostdata->madapter_info.os_type == 3) { + enable_fast_fail(hostdata); + return; + } } - enable_fast_fail(hostdata); + send_srp_login(hostdata); } /** -- cgit v1.2.3 From 87a2d34b0372dcf6bc4caf4d97a7889f5e62a1af Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Tue, 23 Jun 2009 01:06:40 +0200 Subject: [SCSI] fnic: remove redundant BUG_ONs and fix checks on unsigned The shost sg tablesize is set to FNIC_MAX_SG_DESC_CNT and fnic uses scsi_dma_map, so both BUG_ONs can be removed. scsi_dma_map may return -ENOMEM, sg_count should be int to catch that. Signed-off-by: Roel Kluin Signed-off-by: James Bottomley --- drivers/scsi/fnic/fnic_scsi.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c index eabf3650285..bfc996971b8 100644 --- a/drivers/scsi/fnic/fnic_scsi.c +++ b/drivers/scsi/fnic/fnic_scsi.c @@ -245,7 +245,7 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic, struct vnic_wq_copy *wq, struct fnic_io_req *io_req, struct scsi_cmnd *sc, - u32 sg_count) + int sg_count) { struct scatterlist *sg; struct fc_rport *rport = starget_to_rport(scsi_target(sc->device)); @@ -260,9 +260,6 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic, char msg[2]; if (sg_count) { - BUG_ON(sg_count < 0); - BUG_ON(sg_count > FNIC_MAX_SG_DESC_CNT); - /* For each SGE, create a device desc entry */ desc = io_req->sgl_list; for_each_sg(scsi_sglist(sc), sg, sg_count, i) { @@ -344,7 +341,7 @@ int fnic_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *)) struct fnic *fnic; struct vnic_wq_copy *wq; int ret; - u32 sg_count; + int sg_count; unsigned long flags; unsigned long ptr; -- cgit v1.2.3 From e3f47cc74bddea8121560026185ede4770170043 Mon Sep 17 00:00:00 2001 From: Abhijeet Joglekar Date: Wed, 24 Jun 2009 07:42:25 -0700 Subject: [SCSI] fnic: use DMA_BIT_MASK(nn) instead of deprecated DMA_nnBIT_MASK Robert Love reported warning while building fnic_main.c: drivers/scsi/fnic/fnic_main.c:478: warning: `DMA_nnBIT_MASK' is deprecated. Replaced use of DMA_nnBIT_MASK by DMA_BIT_MASK(nn) Signed-off-by: Abhijeet Joglekar Signed-off-by: James Bottomley --- drivers/scsi/fnic/fnic_main.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c index a84072865fc..2c266c01dc5 100644 --- a/drivers/scsi/fnic/fnic_main.c +++ b/drivers/scsi/fnic/fnic_main.c @@ -473,16 +473,16 @@ static int __devinit fnic_probe(struct pci_dev *pdev, * limitation for the device. Try 40-bit first, and * fail to 32-bit. */ - err = pci_set_dma_mask(pdev, DMA_40BIT_MASK); + err = pci_set_dma_mask(pdev, DMA_BIT_MASK(40)); if (err) { - err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); + err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); if (err) { shost_printk(KERN_ERR, fnic->lport->host, "No usable DMA configuration " "aborting\n"); goto err_out_release_regions; } - err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); + err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); if (err) { shost_printk(KERN_ERR, fnic->lport->host, "Unable to obtain 32-bit DMA " @@ -490,7 +490,7 @@ static int __devinit fnic_probe(struct pci_dev *pdev, goto err_out_release_regions; } } else { - err = pci_set_consistent_dma_mask(pdev, DMA_40BIT_MASK); + err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40)); if (err) { shost_printk(KERN_ERR, fnic->lport->host, "Unable to obtain 40-bit DMA " -- cgit v1.2.3 From d3a263a8168f78874254ea9da9595cfb0f3e96d7 Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Wed, 24 Jun 2009 19:55:22 +0000 Subject: [SCSI] zalon: fix oops on attach failure I recently discovered on my zalon that if the attachment fails because of a bus misconfiguration (I scrapped my HVD array, so the card is now unterminated) then the system oopses. The reason is that if ncr_attach() returns NULL (signalling failure) that NULL is passed by the goto failed straight into ncr_detach() which oopses. The fix is just to return -ENODEV in this case. Cc: Stable Tree Signed-off-by: James Bottomley --- drivers/scsi/zalon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/zalon.c b/drivers/scsi/zalon.c index 97f3158fa7b..27e84e4b1fa 100644 --- a/drivers/scsi/zalon.c +++ b/drivers/scsi/zalon.c @@ -134,7 +134,7 @@ zalon_probe(struct parisc_device *dev) host = ncr_attach(&zalon7xx_template, unit, &device); if (!host) - goto fail; + return -ENODEV; if (request_irq(dev->irq, ncr53c8xx_intr, IRQF_SHARED, "zalon", host)) { dev_printk(KERN_ERR, &dev->dev, "irq problem with %d, detaching\n ", -- cgit v1.2.3 From 6fdc03709433ccc2005f0f593ae9d9dd04f7b485 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sat, 20 Jun 2009 13:23:59 +0200 Subject: firewire: core: do not DMA-map stack addresses The DMA mapping API cannot map on-stack addresses, as explained in Documentation/DMA-mapping.txt. Convert the two cases of on-stack packet payload buffers in firewire-core (payload of lock requests in the bus manager work and in iso resource management) to slab-allocated memory. There are a number on-stack buffers for quadlet write or quadlet read requests in firewire-core and firewire-sbp2. These are harmless; they are copied to/ from card driver internal DMA buffers since quadlet payloads are inlined with packet headers. Signed-off-by: Stefan Richter --- drivers/firewire/core-card.c | 14 +++++++------- drivers/firewire/core-cdev.c | 4 +++- drivers/firewire/core-iso.c | 24 +++++++++++++----------- drivers/firewire/core.h | 3 ++- include/linux/firewire.h | 1 + 5 files changed, 26 insertions(+), 20 deletions(-) diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c index 543fccac81b..f74edae5cb4 100644 --- a/drivers/firewire/core-card.c +++ b/drivers/firewire/core-card.c @@ -196,8 +196,8 @@ static void allocate_broadcast_channel(struct fw_card *card, int generation) { int channel, bandwidth = 0; - fw_iso_resource_manage(card, generation, 1ULL << 31, - &channel, &bandwidth, true); + fw_iso_resource_manage(card, generation, 1ULL << 31, &channel, + &bandwidth, true, card->bm_transaction_data); if (channel == 31) { card->broadcast_channel_allocated = true; device_for_each_child(card->device, (void *)(long)generation, @@ -230,7 +230,6 @@ static void fw_card_bm_work(struct work_struct *work) bool do_reset = false; bool root_device_is_running; bool root_device_is_cmc; - __be32 lock_data[2]; spin_lock_irqsave(&card->lock, flags); @@ -273,22 +272,23 @@ static void fw_card_bm_work(struct work_struct *work) goto pick_me; } - lock_data[0] = cpu_to_be32(0x3f); - lock_data[1] = cpu_to_be32(local_id); + card->bm_transaction_data[0] = cpu_to_be32(0x3f); + card->bm_transaction_data[1] = cpu_to_be32(local_id); spin_unlock_irqrestore(&card->lock, flags); rcode = fw_run_transaction(card, TCODE_LOCK_COMPARE_SWAP, irm_id, generation, SCODE_100, CSR_REGISTER_BASE + CSR_BUS_MANAGER_ID, - lock_data, sizeof(lock_data)); + card->bm_transaction_data, + sizeof(card->bm_transaction_data)); if (rcode == RCODE_GENERATION) /* Another bus reset, BM work has been rescheduled. */ goto out; if (rcode == RCODE_COMPLETE && - lock_data[0] != cpu_to_be32(0x3f)) { + card->bm_transaction_data[0] != cpu_to_be32(0x3f)) { /* Somebody else is BM. Only act as IRM. */ if (local_id == irm_id) diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c index d1d30c615b0..ced186d7e9a 100644 --- a/drivers/firewire/core-cdev.c +++ b/drivers/firewire/core-cdev.c @@ -125,6 +125,7 @@ struct iso_resource { int generation; u64 channels; s32 bandwidth; + __be32 transaction_data[2]; struct iso_resource_event *e_alloc, *e_dealloc; }; @@ -1049,7 +1050,8 @@ static void iso_resource_work(struct work_struct *work) r->channels, &channel, &bandwidth, todo == ISO_RES_ALLOC || todo == ISO_RES_REALLOC || - todo == ISO_RES_ALLOC_ONCE); + todo == ISO_RES_ALLOC_ONCE, + r->transaction_data); /* * Is this generation outdated already? As long as this resource sticks * in the idr, it will be scheduled again for a newer generation or at diff --git a/drivers/firewire/core-iso.c b/drivers/firewire/core-iso.c index 166f19c6d38..110e731f557 100644 --- a/drivers/firewire/core-iso.c +++ b/drivers/firewire/core-iso.c @@ -177,9 +177,8 @@ EXPORT_SYMBOL(fw_iso_context_stop); */ static int manage_bandwidth(struct fw_card *card, int irm_id, int generation, - int bandwidth, bool allocate) + int bandwidth, bool allocate, __be32 data[2]) { - __be32 data[2]; int try, new, old = allocate ? BANDWIDTH_AVAILABLE_INITIAL : 0; /* @@ -215,9 +214,9 @@ static int manage_bandwidth(struct fw_card *card, int irm_id, int generation, } static int manage_channel(struct fw_card *card, int irm_id, int generation, - u32 channels_mask, u64 offset, bool allocate) + u32 channels_mask, u64 offset, bool allocate, __be32 data[2]) { - __be32 data[2], c, all, old; + __be32 c, all, old; int i, retry = 5; old = all = allocate ? cpu_to_be32(~0) : 0; @@ -260,7 +259,7 @@ static int manage_channel(struct fw_card *card, int irm_id, int generation, } static void deallocate_channel(struct fw_card *card, int irm_id, - int generation, int channel) + int generation, int channel, __be32 buffer[2]) { u32 mask; u64 offset; @@ -269,7 +268,7 @@ static void deallocate_channel(struct fw_card *card, int irm_id, offset = channel < 32 ? CSR_REGISTER_BASE + CSR_CHANNELS_AVAILABLE_HI : CSR_REGISTER_BASE + CSR_CHANNELS_AVAILABLE_LO; - manage_channel(card, irm_id, generation, mask, offset, false); + manage_channel(card, irm_id, generation, mask, offset, false, buffer); } /** @@ -298,7 +297,7 @@ static void deallocate_channel(struct fw_card *card, int irm_id, */ void fw_iso_resource_manage(struct fw_card *card, int generation, u64 channels_mask, int *channel, int *bandwidth, - bool allocate) + bool allocate, __be32 buffer[2]) { u32 channels_hi = channels_mask; /* channels 31...0 */ u32 channels_lo = channels_mask >> 32; /* channels 63...32 */ @@ -310,10 +309,12 @@ void fw_iso_resource_manage(struct fw_card *card, int generation, if (channels_hi) c = manage_channel(card, irm_id, generation, channels_hi, - CSR_REGISTER_BASE + CSR_CHANNELS_AVAILABLE_HI, allocate); + CSR_REGISTER_BASE + CSR_CHANNELS_AVAILABLE_HI, + allocate, buffer); if (channels_lo && c < 0) { c = manage_channel(card, irm_id, generation, channels_lo, - CSR_REGISTER_BASE + CSR_CHANNELS_AVAILABLE_LO, allocate); + CSR_REGISTER_BASE + CSR_CHANNELS_AVAILABLE_LO, + allocate, buffer); if (c >= 0) c += 32; } @@ -325,12 +326,13 @@ void fw_iso_resource_manage(struct fw_card *card, int generation, if (*bandwidth == 0) return; - ret = manage_bandwidth(card, irm_id, generation, *bandwidth, allocate); + ret = manage_bandwidth(card, irm_id, generation, *bandwidth, + allocate, buffer); if (ret < 0) *bandwidth = 0; if (allocate && ret < 0 && c >= 0) { - deallocate_channel(card, irm_id, generation, c); + deallocate_channel(card, irm_id, generation, c, buffer); *channel = ret; } } diff --git a/drivers/firewire/core.h b/drivers/firewire/core.h index c3cfc647e5e..6052816be35 100644 --- a/drivers/firewire/core.h +++ b/drivers/firewire/core.h @@ -120,7 +120,8 @@ void fw_node_event(struct fw_card *card, struct fw_node *node, int event); int fw_iso_buffer_map(struct fw_iso_buffer *buffer, struct vm_area_struct *vma); void fw_iso_resource_manage(struct fw_card *card, int generation, - u64 channels_mask, int *channel, int *bandwidth, bool allocate); + u64 channels_mask, int *channel, int *bandwidth, + bool allocate, __be32 buffer[2]); /* -topology */ diff --git a/include/linux/firewire.h b/include/linux/firewire.h index 9823946adbc..192d1e43c43 100644 --- a/include/linux/firewire.h +++ b/include/linux/firewire.h @@ -127,6 +127,7 @@ struct fw_card { struct delayed_work work; int bm_retries; int bm_generation; + __be32 bm_transaction_data[2]; bool broadcast_channel_allocated; u32 broadcast_channel; -- cgit v1.2.3 From 47749b14e55cd167632f9a27a4fc439e591e5268 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Thu, 25 Jun 2009 08:27:14 +0200 Subject: i2c: fix build bug in i2c-designware.c This build error triggers on x86: drivers/built-in.o: In function `i2c_dw_init': i2c-designware.c:(.text+0x4e37ca): undefined reference to `clk_get_rate' drivers/built-in.o: In function `dw_i2c_probe': i2c-designware.c:(.devinit.text+0x51f5e): undefined reference to `clk_get' i2c-designware.c:(.devinit.text+0x51f76): undefined reference to `clk_enable' i2c-designware.c:(.devinit.text+0x520ff): undefined reference to `clk_disable' i2c-designware.c:(.devinit.text+0x52108): undefined reference to `clk_put' Because this new driver uses the clk_*() facilities which is an ARM-only thing currently. Signed-off-by: Ingo Molnar Acked-by: Baruch Siach Signed-off-by: Linus Torvalds --- drivers/i2c/busses/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index aa87b6a3bbe..8206442fbab 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -328,6 +328,7 @@ config I2C_DAVINCI config I2C_DESIGNWARE tristate "Synopsys DesignWare" + depends on HAVE_CLK help If you say yes to this option, support will be included for the Synopsys DesignWare I2C adapter. Only master mode is supported. -- cgit v1.2.3 From ab420e6d9c2511b862d753b70efb4e979faa0714 Mon Sep 17 00:00:00 2001 From: Paul Menage Date: Thu, 25 Jun 2009 00:17:15 -0700 Subject: UML: Fix some apparent bitrot UML: Fix some apparent bitrot - migration of net_device methods into net_device_ops - dma_sync_single() changes Signed-off-by: Paul Menage Acked-by: Amerigo Wang -- This version is split from my earlier patch, including just the portions that ar required for Linus' tree. Fixes the following compile errors: include/linux/dma-mapping.h:113: error: redefinition of 'dma_sync_single' arch/um/include/asm/dma-mapping.h:84: error: previous definition of 'dma_sync_single' was here include/linux/dma-mapping.h: In function 'dma_sync_single': include/linux/dma-mapping.h:117: error: implicit declaration of function 'dma_sync_single_for_cpu' include/linux/dma-mapping.h: At top level: include/linux/dma-mapping.h:120: error: redefinition of 'dma_sync_sg' arch/um/include/asm/dma-mapping.h:91: error: previous definition of 'dma_sync_sg' was here include/linux/dma-mapping.h: In function 'dma_sync_sg': include/linux/dma-mapping.h:124: error: implicit declaration of function 'dma_sync_sg_for_cpu' arch/um/drivers/slirp_kern.c: In function 'slirp_init': arch/um/drivers/slirp_kern.c:35: error: 'struct net_device' has no member named 'init' Signed-off-by: Linus Torvalds --- arch/um/drivers/slip_kern.c | 1 - arch/um/drivers/slirp_kern.c | 1 - arch/um/include/asm/dma-mapping.h | 4 ++-- 3 files changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/um/drivers/slip_kern.c b/arch/um/drivers/slip_kern.c index 5ec17563142..dd2aadc14af 100644 --- a/arch/um/drivers/slip_kern.c +++ b/arch/um/drivers/slip_kern.c @@ -30,7 +30,6 @@ static void slip_init(struct net_device *dev, void *data) slip_proto_init(&spri->slip); - dev->init = NULL; dev->hard_header_len = 0; dev->header_ops = NULL; dev->addr_len = 0; diff --git a/arch/um/drivers/slirp_kern.c b/arch/um/drivers/slirp_kern.c index f15a6e7654f..e376284f0fb 100644 --- a/arch/um/drivers/slirp_kern.c +++ b/arch/um/drivers/slirp_kern.c @@ -32,7 +32,6 @@ void slirp_init(struct net_device *dev, void *data) slip_proto_init(&spri->slip); - dev->init = NULL; dev->hard_header_len = 0; dev->header_ops = NULL; dev->addr_len = 0; diff --git a/arch/um/include/asm/dma-mapping.h b/arch/um/include/asm/dma-mapping.h index 90fc708b320..378de4bbf49 100644 --- a/arch/um/include/asm/dma-mapping.h +++ b/arch/um/include/asm/dma-mapping.h @@ -79,14 +79,14 @@ dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries, } static inline void -dma_sync_single(struct device *dev, dma_addr_t dma_handle, size_t size, +dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size, enum dma_data_direction direction) { BUG(); } static inline void -dma_sync_sg(struct device *dev, struct scatterlist *sg, int nelems, +dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems, enum dma_data_direction direction) { BUG(); -- cgit v1.2.3 From 9d73777e500929b71dcfed16eec05f6760e345a6 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Thu, 25 Jun 2009 11:58:55 +0200 Subject: clarify get_user_pages() prototype Currently the 4th parameter of get_user_pages() is called len, but its in pages, not bytes. Rename the thing to nr_pages to avoid future confusion. Signed-off-by: Peter Zijlstra Signed-off-by: Linus Torvalds --- include/linux/mm.h | 2 +- mm/memory.c | 26 ++++++++++++-------------- mm/nommu.c | 12 +++++------- 3 files changed, 18 insertions(+), 22 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index d006e93d5c9..ba3a7cb1eaa 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -826,7 +826,7 @@ extern int make_pages_present(unsigned long addr, unsigned long end); extern int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write); int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, - unsigned long start, int len, int write, int force, + unsigned long start, int nr_pages, int write, int force, struct page **pages, struct vm_area_struct **vmas); int get_user_pages_fast(unsigned long start, int nr_pages, int write, struct page **pages); diff --git a/mm/memory.c b/mm/memory.c index f46ac18ba23..65216194eb8 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1207,8 +1207,8 @@ static inline int use_zero_page(struct vm_area_struct *vma) int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, - unsigned long start, int len, int flags, - struct page **pages, struct vm_area_struct **vmas) + unsigned long start, int nr_pages, int flags, + struct page **pages, struct vm_area_struct **vmas) { int i; unsigned int vm_flags = 0; @@ -1217,7 +1217,7 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, int ignore = !!(flags & GUP_FLAGS_IGNORE_VMA_PERMISSIONS); int ignore_sigkill = !!(flags & GUP_FLAGS_IGNORE_SIGKILL); - if (len <= 0) + if (nr_pages <= 0) return 0; /* * Require read or write permissions. @@ -1269,7 +1269,7 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, vmas[i] = gate_vma; i++; start += PAGE_SIZE; - len--; + nr_pages--; continue; } @@ -1280,7 +1280,7 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, if (is_vm_hugetlb_page(vma)) { i = follow_hugetlb_page(mm, vma, pages, vmas, - &start, &len, i, write); + &start, &nr_pages, i, write); continue; } @@ -1357,9 +1357,9 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, vmas[i] = vma; i++; start += PAGE_SIZE; - len--; - } while (len && start < vma->vm_end); - } while (len); + nr_pages--; + } while (nr_pages && start < vma->vm_end); + } while (nr_pages); return i; } @@ -1368,7 +1368,7 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, * @tsk: task_struct of target task * @mm: mm_struct of target mm * @start: starting user address - * @len: number of pages from start to pin + * @nr_pages: number of pages from start to pin * @write: whether pages will be written to by the caller * @force: whether to force write access even if user mapping is * readonly. This will result in the page being COWed even @@ -1380,7 +1380,7 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, * Or NULL if the caller does not require them. * * Returns number of pages pinned. This may be fewer than the number - * requested. If len is 0 or negative, returns 0. If no pages + * requested. If nr_pages is 0 or negative, returns 0. If no pages * were pinned, returns -errno. Each page returned must be released * with a put_page() call when it is finished with. vmas will only * remain valid while mmap_sem is held. @@ -1414,7 +1414,7 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, * See also get_user_pages_fast, for performance critical applications. */ int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, - unsigned long start, int len, int write, int force, + unsigned long start, int nr_pages, int write, int force, struct page **pages, struct vm_area_struct **vmas) { int flags = 0; @@ -1424,9 +1424,7 @@ int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, if (force) flags |= GUP_FLAGS_FORCE; - return __get_user_pages(tsk, mm, - start, len, flags, - pages, vmas); + return __get_user_pages(tsk, mm, start, nr_pages, flags, pages, vmas); } EXPORT_SYMBOL(get_user_pages); diff --git a/mm/nommu.c b/mm/nommu.c index 2fd2ad5da98..bf0cc762a7d 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -173,8 +173,8 @@ unsigned int kobjsize(const void *objp) } int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, - unsigned long start, int len, int flags, - struct page **pages, struct vm_area_struct **vmas) + unsigned long start, int nr_pages, int flags, + struct page **pages, struct vm_area_struct **vmas) { struct vm_area_struct *vma; unsigned long vm_flags; @@ -189,7 +189,7 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, vm_flags = write ? (VM_WRITE | VM_MAYWRITE) : (VM_READ | VM_MAYREAD); vm_flags &= force ? (VM_MAYREAD | VM_MAYWRITE) : (VM_READ | VM_WRITE); - for (i = 0; i < len; i++) { + for (i = 0; i < nr_pages; i++) { vma = find_vma(mm, start); if (!vma) goto finish_or_fault; @@ -224,7 +224,7 @@ finish_or_fault: * - don't permit access to VMAs that don't support it, such as I/O mappings */ int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, - unsigned long start, int len, int write, int force, + unsigned long start, int nr_pages, int write, int force, struct page **pages, struct vm_area_struct **vmas) { int flags = 0; @@ -234,9 +234,7 @@ int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, if (force) flags |= GUP_FLAGS_FORCE; - return __get_user_pages(tsk, mm, - start, len, flags, - pages, vmas); + return __get_user_pages(tsk, mm, start, nr_pages, flags, pages, vmas); } EXPORT_SYMBOL(get_user_pages); -- cgit v1.2.3 From 42dd2aa6496a2e87e496aac5494d2e1d6096c85b Mon Sep 17 00:00:00 2001 From: Thadeu Lima de Souza Cascardo Date: Thu, 25 Jun 2009 14:41:24 +0100 Subject: acm: Return ENODEV instead of EINVAL when trying to open ACM device. This is required, otherwise a user will get a EINVAL while opening a non-existing device, instead of ENODEV. This is what I get with this patch applied now instead of an "Invalid argument". cascardo@vespa:~$ cat /dev/ttyACM0 cat: /dev/ttyACM0: No such device cascardo@vespa:~$ Signed-off-by: Thadeu Lima de Souza Cascardo Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds --- drivers/usb/class/cdc-acm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 38bfdb0f666..02eb60bb679 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -550,7 +550,7 @@ static void acm_waker(struct work_struct *waker) static int acm_tty_open(struct tty_struct *tty, struct file *filp) { struct acm *acm; - int rv = -EINVAL; + int rv = -ENODEV; int i; dbg("Entering acm_tty_open."); -- cgit v1.2.3 From 922b13565b6a826a925f9f91f053dc9cb0d6210e Mon Sep 17 00:00:00 2001 From: Thadeu Lima de Souza Cascardo Date: Thu, 25 Jun 2009 14:41:30 +0100 Subject: acm: Fix oops when closing ACM tty device right after open has failed. This commit 10077d4a6674f535abdbe25cdecb1202af7948f1 has stopped checking if there was a valid acm device associated to the tty, which is not true right after open fails and tty subsystem tries to close the device. As an example, open fails with a non-existing device, when probe has never been called, because the device has never been plugged. This is common in systems with static modules and no udev. Signed-off-by: Thadeu Lima de Souza Cascardo Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds --- drivers/usb/class/cdc-acm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 02eb60bb679..3f104599347 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -677,7 +677,7 @@ static void acm_tty_close(struct tty_struct *tty, struct file *filp) /* Perform the closing process and see if we need to do the hardware shutdown */ - if (tty_port_close_start(&acm->port, tty, filp) == 0) + if (!acm || tty_port_close_start(&acm->port, tty, filp) == 0) return; acm_port_down(acm, 0); tty_port_close_end(&acm->port, tty); -- cgit v1.2.3 From f4fa446883959c1c5f314a043e750dbfe3728c55 Mon Sep 17 00:00:00 2001 From: Thadeu Lima de Souza Cascardo Date: Thu, 25 Jun 2009 14:41:37 +0100 Subject: usb_serial: Fix oops when unexisting usb serial device is opened. This commit 335f8514f200e63d689113d29cb7253a5c282967 has stopped properly checking if there is any usb serial associated with the tty in the close function. It happens the close function is called by releasing the terminal right after opening the device fails. As an example, open fails with a non-existing device, when probe has never been called, because the device has never been plugged. This is common in systems with static modules and no udev. Signed-off-by: Thadeu Lima de Souza Cascardo Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds --- drivers/usb/serial/usb-serial.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index d595aa5586a..a84216464ca 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -333,6 +333,9 @@ static void serial_close(struct tty_struct *tty, struct file *filp) { struct usb_serial_port *port = tty->driver_data; + if (!port) + return; + dbg("%s - port %d", __func__, port->number); -- cgit v1.2.3 From 0f3bc09ee1b7fcadd5bfdc5ed2e1643f658fe23d Mon Sep 17 00:00:00 2001 From: Suresh Jayaraman Date: Thu, 25 Jun 2009 18:12:34 +0530 Subject: cifs: Fix incorrect return code being printed in cFYI messages FreeXid() along with freeing Xid does add a cifsFYI debug message that prints rc (return code) as well. In some code paths where we set/return error code after calling FreeXid(), incorrect error code is being printed when cifsFYI is enabled. This could be misleading in few cases. For eg. In cifs_open() if cifs_fill_filedata() returns a valid pointer to cifsFileInfo, FreeXid() prints rc=-13 whereas 0 is actually being returned. Fix this by setting rc before calling FreeXid(). Basically convert FreeXid(xid); rc = -ERR; return -ERR; => FreeXid(xid); return rc; [Note that Christoph would like to replace the GetXid/FreeXid calls, which are primarily used for debugging. This seems like a good longer term goal, but although there is an alternative tracing facility, there are no examples yet available that I know of that we can use (yet) to convert this cifs function entry/exit logging, and for creating an identifier that we can use to correlate all dmesg log entries for a particular vfs operation (ie identify all log entries for a particular vfs request to cifs: e.g. a particular close or read or write or byte range lock call ... and just using the thread id is harder). Eventually when a replacement for this is available (e.g. when NFS switches over and various samples to look at in other file systems) we can remove the GetXid/FreeXid macro but in the meantime multiple people use this run time configurable logging all the time for debugging, and Suresh's patch fixes a problem which made it harder to notice some low memory problems in the log so it is worthwhile to fix this problem until a better logging approach is able to be used] Acked-by: Jeff Layton Signed-off-by: Suresh Jayaraman Signed-off-by: Steve French --- fs/cifs/dir.c | 6 ++++-- fs/cifs/file.c | 24 ++++++++++++++++-------- fs/cifs/inode.c | 15 ++++++++++----- fs/cifs/link.c | 3 ++- fs/cifs/xattr.c | 12 ++++++++---- 5 files changed, 40 insertions(+), 20 deletions(-) diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index 3758965d73d..7dc6b74f9de 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -307,8 +307,9 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode, full_path = build_path_from_dentry(direntry); if (full_path == NULL) { + rc = -ENOMEM; FreeXid(xid); - return -ENOMEM; + return rc; } if (oplockEnabled) @@ -540,8 +541,9 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode, buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL); if (buf == NULL) { kfree(full_path); + rc = -ENOMEM; FreeXid(xid); - return -ENOMEM; + return rc; } rc = CIFSSMBOpen(xid, pTcon, full_path, diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 06866841b97..ebdbe62a829 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -300,14 +300,16 @@ int cifs_open(struct inode *inode, struct file *file) pCifsInode = CIFS_I(file->f_path.dentry->d_inode); pCifsFile = cifs_fill_filedata(file); if (pCifsFile) { + rc = 0; FreeXid(xid); - return 0; + return rc; } full_path = build_path_from_dentry(file->f_path.dentry); if (full_path == NULL) { + rc = -ENOMEM; FreeXid(xid); - return -ENOMEM; + return rc; } cFYI(1, ("inode = 0x%p file flags are 0x%x for %s", @@ -494,8 +496,9 @@ static int cifs_reopen_file(struct file *file, bool can_flush) mutex_unlock(&pCifsFile->fh_mutex); if (!pCifsFile->invalidHandle) { mutex_lock(&pCifsFile->fh_mutex); + rc = 0; FreeXid(xid); - return 0; + return rc; } if (file->f_path.dentry == NULL) { @@ -845,8 +848,9 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock) tcon = cifs_sb->tcon; if (file->private_data == NULL) { + rc = -EBADF; FreeXid(xid); - return -EBADF; + return rc; } netfid = ((struct cifsFileInfo *)file->private_data)->netfid; @@ -1805,8 +1809,9 @@ ssize_t cifs_user_read(struct file *file, char __user *read_data, pTcon = cifs_sb->tcon; if (file->private_data == NULL) { + rc = -EBADF; FreeXid(xid); - return -EBADF; + return rc; } open_file = (struct cifsFileInfo *)file->private_data; @@ -1885,8 +1890,9 @@ static ssize_t cifs_read(struct file *file, char *read_data, size_t read_size, pTcon = cifs_sb->tcon; if (file->private_data == NULL) { + rc = -EBADF; FreeXid(xid); - return -EBADF; + return rc; } open_file = (struct cifsFileInfo *)file->private_data; @@ -2019,8 +2025,9 @@ static int cifs_readpages(struct file *file, struct address_space *mapping, xid = GetXid(); if (file->private_data == NULL) { + rc = -EBADF; FreeXid(xid); - return -EBADF; + return rc; } open_file = (struct cifsFileInfo *)file->private_data; cifs_sb = CIFS_SB(file->f_path.dentry->d_sb); @@ -2185,8 +2192,9 @@ static int cifs_readpage(struct file *file, struct page *page) xid = GetXid(); if (file->private_data == NULL) { + rc = -EBADF; FreeXid(xid); - return -EBADF; + return rc; } cFYI(1, ("readpage %p at offset %d 0x%x\n", diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index fad882b075b..155c9e785d0 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -988,8 +988,9 @@ int cifs_unlink(struct inode *dir, struct dentry *dentry) * sb->s_vfs_rename_mutex here */ full_path = build_path_from_dentry(dentry); if (full_path == NULL) { + rc = -ENOMEM; FreeXid(xid); - return -ENOMEM; + return rc; } if ((tcon->ses->capabilities & CAP_UNIX) && @@ -1118,8 +1119,9 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) full_path = build_path_from_dentry(direntry); if (full_path == NULL) { + rc = -ENOMEM; FreeXid(xid); - return -ENOMEM; + return rc; } if ((pTcon->ses->capabilities & CAP_UNIX) && @@ -1303,8 +1305,9 @@ int cifs_rmdir(struct inode *inode, struct dentry *direntry) full_path = build_path_from_dentry(direntry); if (full_path == NULL) { + rc = -ENOMEM; FreeXid(xid); - return -ENOMEM; + return rc; } rc = CIFSSMBRmDir(xid, pTcon, full_path, cifs_sb->local_nls, @@ -1508,8 +1511,9 @@ int cifs_revalidate(struct dentry *direntry) since that would deadlock */ full_path = build_path_from_dentry(direntry); if (full_path == NULL) { + rc = -ENOMEM; FreeXid(xid); - return -ENOMEM; + return rc; } cFYI(1, ("Revalidate: %s inode 0x%p count %d dentry: 0x%p d_time %ld " "jiffies %ld", full_path, direntry->d_inode, @@ -1911,8 +1915,9 @@ cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs) full_path = build_path_from_dentry(direntry); if (full_path == NULL) { + rc = -ENOMEM; FreeXid(xid); - return -ENOMEM; + return rc; } /* diff --git a/fs/cifs/link.c b/fs/cifs/link.c index cd83c53fcbb..fc1e0487eae 100644 --- a/fs/cifs/link.c +++ b/fs/cifs/link.c @@ -172,8 +172,9 @@ cifs_symlink(struct inode *inode, struct dentry *direntry, const char *symname) full_path = build_path_from_dentry(direntry); if (full_path == NULL) { + rc = -ENOMEM; FreeXid(xid); - return -ENOMEM; + return rc; } cFYI(1, ("Full path: %s", full_path)); diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c index e9527eedc63..a75afa3dd9e 100644 --- a/fs/cifs/xattr.c +++ b/fs/cifs/xattr.c @@ -64,8 +64,9 @@ int cifs_removexattr(struct dentry *direntry, const char *ea_name) full_path = build_path_from_dentry(direntry); if (full_path == NULL) { + rc = -ENOMEM; FreeXid(xid); - return -ENOMEM; + return rc; } if (ea_name == NULL) { cFYI(1, ("Null xattr names not supported")); @@ -118,8 +119,9 @@ int cifs_setxattr(struct dentry *direntry, const char *ea_name, full_path = build_path_from_dentry(direntry); if (full_path == NULL) { + rc = -ENOMEM; FreeXid(xid); - return -ENOMEM; + return rc; } /* return dos attributes as pseudo xattr */ /* return alt name if available as pseudo attr */ @@ -225,8 +227,9 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name, full_path = build_path_from_dentry(direntry); if (full_path == NULL) { + rc = -ENOMEM; FreeXid(xid); - return -ENOMEM; + return rc; } /* return dos attributes as pseudo xattr */ /* return alt name if available as pseudo attr */ @@ -351,8 +354,9 @@ ssize_t cifs_listxattr(struct dentry *direntry, char *data, size_t buf_size) full_path = build_path_from_dentry(direntry); if (full_path == NULL) { + rc = -ENOMEM; FreeXid(xid); - return -ENOMEM; + return rc; } /* return dos attributes as pseudo xattr */ /* return alt name if available as pseudo attr */ -- cgit v1.2.3 From dfc2f91ac29f5ef50e74bf15a1a6b6aa6b952e62 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Fri, 26 Jun 2009 04:31:57 +0900 Subject: nommu: provide follow_pfn(). With the introduction of follow_pfn() as an exported symbol, modules have begun making use of it. Unfortunately this was not reflected on nommu at the time, so the in-tree users have subsequently all blown up with link errors there. This provides a simple follow_pfn() that just returns addr >> PAGE_SHIFT, which will do the right thing on nommu. There is no need to do range checking within the vma, as the find_vma() case will already take care of this. Signed-off-by: Paul Mundt --- mm/nommu.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/mm/nommu.c b/mm/nommu.c index 2fd2ad5da98..598bc871487 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -240,6 +240,27 @@ int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, } EXPORT_SYMBOL(get_user_pages); +/** + * follow_pfn - look up PFN at a user virtual address + * @vma: memory mapping + * @address: user virtual address + * @pfn: location to store found PFN + * + * Only IO mappings and raw PFN mappings are allowed. + * + * Returns zero and the pfn at @pfn on success, -ve otherwise. + */ +int follow_pfn(struct vm_area_struct *vma, unsigned long address, + unsigned long *pfn) +{ + if (!(vma->vm_flags & (VM_IO | VM_PFNMAP))) + return -EINVAL; + + *pfn = address >> PAGE_SHIFT; + return 0; +} +EXPORT_SYMBOL(follow_pfn); + DEFINE_RWLOCK(vmlist_lock); struct vm_struct *vmlist; -- cgit v1.2.3 From 7c6a1c65bbd3be688e581511f45818663efc1877 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Thu, 25 Jun 2009 17:05:54 +0200 Subject: perf_counter tools: Rework the file format Create a structured file format that includes the full perf_counter_attr and all its relevant counter IDs so that the reporting program has full information. Signed-off-by: Peter Zijlstra LKML-Reference: Signed-off-by: Ingo Molnar --- tools/perf/Makefile | 3 +- tools/perf/builtin-record.c | 100 +++++++++++------- tools/perf/builtin-report.c | 37 +++++-- tools/perf/perf.h | 8 +- tools/perf/types.h | 17 ---- tools/perf/util/header.c | 242 ++++++++++++++++++++++++++++++++++++++++++++ tools/perf/util/header.h | 37 +++++++ tools/perf/util/string.h | 2 +- tools/perf/util/symbol.h | 2 +- tools/perf/util/types.h | 17 ++++ 10 files changed, 394 insertions(+), 71 deletions(-) delete mode 100644 tools/perf/types.h create mode 100644 tools/perf/util/header.c create mode 100644 tools/perf/util/header.h create mode 100644 tools/perf/util/types.h diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 36d7eef4991..d3887ed51a6 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -290,7 +290,7 @@ LIB_FILE=libperf.a LIB_H += ../../include/linux/perf_counter.h LIB_H += perf.h -LIB_H += types.h +LIB_H += util/types.h LIB_H += util/list.h LIB_H += util/rbtree.h LIB_H += util/levenshtein.h @@ -328,6 +328,7 @@ LIB_OBJS += util/sigchain.o LIB_OBJS += util/symbol.o LIB_OBJS += util/color.o LIB_OBJS += util/pager.o +LIB_OBJS += util/header.o BUILTIN_OBJS += builtin-annotate.o BUILTIN_OBJS += builtin-help.o diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 9b899ba1b41..f4f0240d230 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -14,6 +14,8 @@ #include "util/parse-events.h" #include "util/string.h" +#include "util/header.h" + #include #include @@ -52,7 +54,8 @@ static int nr_poll; static int nr_cpu; static int file_new = 1; -static struct perf_file_header file_header; + +struct perf_header *header; struct mmap_event { struct perf_event_header header; @@ -328,7 +331,7 @@ static void pid_synthesize_mmap_samples(pid_t pid) fclose(fp); } -static void synthesize_samples(void) +static void synthesize_all(void) { DIR *proc; struct dirent dirent, *next; @@ -352,10 +355,35 @@ static void synthesize_samples(void) static int group_fd; +static struct perf_header_attr *get_header_attr(struct perf_counter_attr *a, int nr) +{ + struct perf_header_attr *h_attr; + + if (nr < header->attrs) { + h_attr = header->attr[nr]; + } else { + h_attr = perf_header_attr__new(a); + perf_header__add_attr(header, h_attr); + } + + return h_attr; +} + static void create_counter(int counter, int cpu, pid_t pid) { struct perf_counter_attr *attr = attrs + counter; - int track = 1; + struct perf_header_attr *h_attr; + int track = !counter; /* only the first counter needs these */ + struct { + u64 count; + u64 time_enabled; + u64 time_running; + u64 id; + } read_data; + + attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | + PERF_FORMAT_TOTAL_TIME_RUNNING | + PERF_FORMAT_ID; attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID; @@ -368,22 +396,11 @@ static void create_counter(int counter, int cpu, pid_t pid) if (call_graph) attr->sample_type |= PERF_SAMPLE_CALLCHAIN; - if (file_new) { - file_header.sample_type = attr->sample_type; - } else { - if (file_header.sample_type != attr->sample_type) { - fprintf(stderr, "incompatible append\n"); - exit(-1); - } - } - attr->mmap = track; attr->comm = track; attr->inherit = (cpu < 0) && inherit; attr->disabled = 1; - track = 0; /* only the first counter needs these */ - try_again: fd[nr_cpu][counter] = sys_perf_counter_open(attr, pid, cpu, group_fd, 0); @@ -414,6 +431,19 @@ try_again: exit(-1); } + h_attr = get_header_attr(attr, counter); + + if (!file_new) { + if (memcmp(&h_attr->attr, attr, sizeof(*attr))) { + fprintf(stderr, "incompatible append\n"); + exit(-1); + } + } + + read(fd[nr_cpu][counter], &read_data, sizeof(read_data)); + + perf_header_attr__add_id(h_attr, read_data.id); + assert(fd[nr_cpu][counter] >= 0); fcntl(fd[nr_cpu][counter], F_SETFL, O_NONBLOCK); @@ -444,11 +474,6 @@ static void open_counters(int cpu, pid_t pid) { int counter; - if (pid > 0) { - pid_synthesize_comm_event(pid, 0); - pid_synthesize_mmap_samples(pid); - } - group_fd = -1; for (counter = 0; counter < nr_counters; counter++) create_counter(counter, cpu, pid); @@ -458,17 +483,16 @@ static void open_counters(int cpu, pid_t pid) static void atexit_header(void) { - file_header.data_size += bytes_written; + header->data_size += bytes_written; - if (pwrite(output, &file_header, sizeof(file_header), 0) == -1) - perror("failed to write on file headers"); + perf_header__write(header, output); } static int __cmd_record(int argc, const char **argv) { int i, counter; struct stat st; - pid_t pid; + pid_t pid = 0; int flags; int ret; @@ -499,22 +523,31 @@ static int __cmd_record(int argc, const char **argv) exit(-1); } - if (!file_new) { - if (read(output, &file_header, sizeof(file_header)) == -1) { - perror("failed to read file headers"); - exit(-1); - } - - lseek(output, file_header.data_size, SEEK_CUR); - } + if (!file_new) + header = perf_header__read(output); + else + header = perf_header__new(); atexit(atexit_header); if (!system_wide) { - open_counters(-1, target_pid != -1 ? target_pid : getpid()); + pid = target_pid; + if (pid == -1) + pid = getpid(); + + open_counters(-1, pid); } else for (i = 0; i < nr_cpus; i++) open_counters(i, target_pid); + if (file_new) + perf_header__write(header, output); + + if (!system_wide) { + pid_synthesize_comm_event(pid, 0); + pid_synthesize_mmap_samples(pid); + } else + synthesize_all(); + if (target_pid == -1 && argc) { pid = fork(); if (pid < 0) @@ -538,9 +571,6 @@ static int __cmd_record(int argc, const char **argv) } } - if (system_wide) - synthesize_samples(); - while (!done) { int hits = samples; diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index b4e76f75ba8..e575f303976 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -17,6 +17,7 @@ #include "util/string.h" #include "perf.h" +#include "util/header.h" #include "util/parse-options.h" #include "util/parse-events.h" @@ -1385,13 +1386,27 @@ process_event(event_t *event, unsigned long offset, unsigned long head) return 0; } -static struct perf_file_header file_header; +static struct perf_header *header; + +static int perf_header__has_sample(u64 sample_mask) +{ + int i; + + for (i = 0; i < header->attrs; i++) { + struct perf_header_attr *attr = header->attr[i]; + + if (!(attr->attr.sample_type & sample_mask)) + return 0; + } + + return 1; +} static int __cmd_report(void) { int ret, rc = EXIT_FAILURE; unsigned long offset = 0; - unsigned long head = sizeof(file_header); + unsigned long head, shift; struct stat stat; event_t *event; uint32_t size; @@ -1419,13 +1434,11 @@ static int __cmd_report(void) exit(0); } - if (read(input, &file_header, sizeof(file_header)) == -1) { - perror("failed to read file headers"); - exit(-1); - } + header = perf_header__read(input); + head = header->data_offset; if (sort__has_parent && - !(file_header.sample_type & PERF_SAMPLE_CALLCHAIN)) { + !perf_header__has_sample(PERF_SAMPLE_CALLCHAIN)) { fprintf(stderr, "selected --sort parent, but no callchain data\n"); exit(-1); } @@ -1445,6 +1458,11 @@ static int __cmd_report(void) cwd = NULL; cwdlen = 0; } + + shift = page_size * (head / page_size); + offset += shift; + head -= shift; + remap: buf = (char *)mmap(NULL, page_size * mmap_window, PROT_READ, MAP_SHARED, input, offset); @@ -1461,9 +1479,10 @@ more: size = 8; if (head + event->header.size >= page_size * mmap_window) { - unsigned long shift = page_size * (head / page_size); int ret; + shift = page_size * (head / page_size); + ret = munmap(buf, page_size * mmap_window); assert(ret == 0); @@ -1501,7 +1520,7 @@ more: head += size; - if (offset + head >= sizeof(file_header) + file_header.data_size) + if (offset + head >= header->data_offset + header->data_size) goto done; if (offset + head < stat.st_size) diff --git a/tools/perf/perf.h b/tools/perf/perf.h index bccb529dac0..16c84fd73c8 100644 --- a/tools/perf/perf.h +++ b/tools/perf/perf.h @@ -19,7 +19,7 @@ #include #include "../../include/linux/perf_counter.h" -#include "types.h" +#include "util/types.h" /* * prctl(PR_TASK_PERF_COUNTERS_DISABLE) will (cheaply) disable all @@ -66,10 +66,4 @@ sys_perf_counter_open(struct perf_counter_attr *attr, #define MAX_COUNTERS 256 #define MAX_NR_CPUS 256 -struct perf_file_header { - u64 version; - u64 sample_type; - u64 data_size; -}; - #endif diff --git a/tools/perf/types.h b/tools/perf/types.h deleted file mode 100644 index 5e75f900594..00000000000 --- a/tools/perf/types.h +++ /dev/null @@ -1,17 +0,0 @@ -#ifndef _PERF_TYPES_H -#define _PERF_TYPES_H - -/* - * We define u64 as unsigned long long for every architecture - * so that we can print it with %Lx without getting warnings. - */ -typedef unsigned long long u64; -typedef signed long long s64; -typedef unsigned int u32; -typedef signed int s32; -typedef unsigned short u16; -typedef signed short s16; -typedef unsigned char u8; -typedef signed char s8; - -#endif /* _PERF_TYPES_H */ diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c new file mode 100644 index 00000000000..450384b3bbe --- /dev/null +++ b/tools/perf/util/header.c @@ -0,0 +1,242 @@ +#include +#include +#include +#include + +#include "util.h" +#include "header.h" + +/* + * + */ + +struct perf_header_attr *perf_header_attr__new(struct perf_counter_attr *attr) +{ + struct perf_header_attr *self = malloc(sizeof(*self)); + + if (!self) + die("nomem"); + + self->attr = *attr; + self->ids = 0; + self->size = 1; + self->id = malloc(sizeof(u64)); + + if (!self->id) + die("nomem"); + + return self; +} + +void perf_header_attr__add_id(struct perf_header_attr *self, u64 id) +{ + int pos = self->ids; + + self->ids++; + if (self->ids > self->size) { + self->size *= 2; + self->id = realloc(self->id, self->size * sizeof(u64)); + if (!self->id) + die("nomem"); + } + self->id[pos] = id; +} + +/* + * + */ + +struct perf_header *perf_header__new(void) +{ + struct perf_header *self = malloc(sizeof(*self)); + + if (!self) + die("nomem"); + + self->frozen = 0; + + self->attrs = 0; + self->size = 1; + self->attr = malloc(sizeof(void *)); + + if (!self->attr) + die("nomem"); + + self->data_offset = 0; + self->data_size = 0; + + return self; +} + +void perf_header__add_attr(struct perf_header *self, + struct perf_header_attr *attr) +{ + int pos = self->attrs; + + if (self->frozen) + die("frozen"); + + self->attrs++; + if (self->attrs > self->size) { + self->size *= 2; + self->attr = realloc(self->attr, self->size * sizeof(void *)); + if (!self->attr) + die("nomem"); + } + self->attr[pos] = attr; +} + +static const char *__perf_magic = "PERFFILE"; + +#define PERF_MAGIC (*(u64 *)__perf_magic) + +struct perf_file_section { + u64 offset; + u64 size; +}; + +struct perf_file_attr { + struct perf_counter_attr attr; + struct perf_file_section ids; +}; + +struct perf_file_header { + u64 magic; + u64 size; + u64 attr_size; + struct perf_file_section attrs; + struct perf_file_section data; +}; + +static void do_write(int fd, void *buf, size_t size) +{ + while (size) { + int ret = write(fd, buf, size); + + if (ret < 0) + die("failed to write"); + + size -= ret; + buf += ret; + } +} + +void perf_header__write(struct perf_header *self, int fd) +{ + struct perf_file_header f_header; + struct perf_file_attr f_attr; + struct perf_header_attr *attr; + int i; + + lseek(fd, sizeof(f_header), SEEK_SET); + + + for (i = 0; i < self->attrs; i++) { + attr = self->attr[i]; + + attr->id_offset = lseek(fd, 0, SEEK_CUR); + do_write(fd, attr->id, attr->ids * sizeof(u64)); + } + + + self->attr_offset = lseek(fd, 0, SEEK_CUR); + + for (i = 0; i < self->attrs; i++) { + attr = self->attr[i]; + + f_attr = (struct perf_file_attr){ + .attr = attr->attr, + .ids = { + .offset = attr->id_offset, + .size = attr->ids * sizeof(u64), + } + }; + do_write(fd, &f_attr, sizeof(f_attr)); + } + + + self->data_offset = lseek(fd, 0, SEEK_CUR); + + f_header = (struct perf_file_header){ + .magic = PERF_MAGIC, + .size = sizeof(f_header), + .attr_size = sizeof(f_attr), + .attrs = { + .offset = self->attr_offset, + .size = self->attrs * sizeof(f_attr), + }, + .data = { + .offset = self->data_offset, + .size = self->data_size, + }, + }; + + lseek(fd, 0, SEEK_SET); + do_write(fd, &f_header, sizeof(f_header)); + lseek(fd, self->data_offset + self->data_size, SEEK_SET); + + self->frozen = 1; +} + +static void do_read(int fd, void *buf, size_t size) +{ + while (size) { + int ret = read(fd, buf, size); + + if (ret < 0) + die("failed to read"); + + size -= ret; + buf += ret; + } +} + +struct perf_header *perf_header__read(int fd) +{ + struct perf_header *self = perf_header__new(); + struct perf_file_header f_header; + struct perf_file_attr f_attr; + u64 f_id; + + int nr_attrs, nr_ids, i, j; + + lseek(fd, 0, SEEK_SET); + do_read(fd, &f_header, sizeof(f_header)); + + if (f_header.magic != PERF_MAGIC || + f_header.size != sizeof(f_header) || + f_header.attr_size != sizeof(f_attr)) + die("incompatible file format"); + + nr_attrs = f_header.attrs.size / sizeof(f_attr); + lseek(fd, f_header.attrs.offset, SEEK_SET); + + for (i = 0; i < nr_attrs; i++) { + struct perf_header_attr *attr; + off_t tmp = lseek(fd, 0, SEEK_CUR); + + do_read(fd, &f_attr, sizeof(f_attr)); + + attr = perf_header_attr__new(&f_attr.attr); + + nr_ids = f_attr.ids.size / sizeof(u64); + lseek(fd, f_attr.ids.offset, SEEK_SET); + + for (j = 0; j < nr_ids; j++) { + do_read(fd, &f_id, sizeof(f_id)); + + perf_header_attr__add_id(attr, f_id); + } + perf_header__add_attr(self, attr); + lseek(fd, tmp, SEEK_SET); + } + + self->data_offset = f_header.data.offset; + self->data_size = f_header.data.size; + + lseek(fd, self->data_offset + self->data_size, SEEK_SET); + + self->frozen = 1; + + return self; +} diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h new file mode 100644 index 00000000000..b5ef53ad4c7 --- /dev/null +++ b/tools/perf/util/header.h @@ -0,0 +1,37 @@ +#ifndef _PERF_HEADER_H +#define _PERF_HEADER_H + +#include "../../../include/linux/perf_counter.h" +#include +#include "types.h" + +struct perf_header_attr { + struct perf_counter_attr attr; + int ids, size; + u64 *id; + off_t id_offset; +}; + +struct perf_header { + int frozen; + int attrs, size; + struct perf_header_attr **attr; + off_t attr_offset; + u64 data_offset; + u64 data_size; +}; + +struct perf_header *perf_header__read(int fd); +void perf_header__write(struct perf_header *self, int fd); + +void perf_header__add_attr(struct perf_header *self, + struct perf_header_attr *attr); + +struct perf_header_attr * +perf_header_attr__new(struct perf_counter_attr *attr); +void perf_header_attr__add_id(struct perf_header_attr *self, u64 id); + + +struct perf_header *perf_header__new(void); + +#endif /* _PERF_HEADER_H */ diff --git a/tools/perf/util/string.h b/tools/perf/util/string.h index 37b03255b42..3dca2f654cd 100644 --- a/tools/perf/util/string.h +++ b/tools/perf/util/string.h @@ -1,7 +1,7 @@ #ifndef _PERF_STRING_H_ #define _PERF_STRING_H_ -#include "../types.h" +#include "types.h" int hex2u64(const char *ptr, u64 *val); diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index ea332e56e45..940b432db16 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -2,7 +2,7 @@ #define _PERF_SYMBOL_ 1 #include -#include "../types.h" +#include "types.h" #include "list.h" #include "rbtree.h" diff --git a/tools/perf/util/types.h b/tools/perf/util/types.h new file mode 100644 index 00000000000..5e75f900594 --- /dev/null +++ b/tools/perf/util/types.h @@ -0,0 +1,17 @@ +#ifndef _PERF_TYPES_H +#define _PERF_TYPES_H + +/* + * We define u64 as unsigned long long for every architecture + * so that we can print it with %Lx without getting warnings. + */ +typedef unsigned long long u64; +typedef signed long long s64; +typedef unsigned int u32; +typedef signed int s32; +typedef unsigned short u16; +typedef signed short s16; +typedef unsigned char u8; +typedef signed char s8; + +#endif /* _PERF_TYPES_H */ -- cgit v1.2.3 From 41f95331b972a039f519ae0c70f051b7121f7346 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Tue, 23 Jun 2009 17:55:18 +0200 Subject: perf_counter: Split the mmap control page in two parts Since there are two distinct sections to the control page, move them apart so that possible extentions don't overlap. Signed-off-by: Peter Zijlstra LKML-Reference: Signed-off-by: Ingo Molnar --- include/linux/perf_counter.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h index e7213e46cf9..489d5cbfbcc 100644 --- a/include/linux/perf_counter.h +++ b/include/linux/perf_counter.h @@ -233,6 +233,12 @@ struct perf_counter_mmap_page { __u32 index; /* hardware counter identifier */ __s64 offset; /* add to hardware counter value */ + /* + * Hole for extension of the self monitor capabilities + */ + + __u64 __reserved[125]; /* align to 1k */ + /* * Control data for the mmap() data buffer. * -- cgit v1.2.3 From 7f8b4e4e0988dadfd22330fd147ad2453e19f510 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Mon, 22 Jun 2009 14:34:35 +0200 Subject: perf_counter: Add scale information to the mmap control page Add the needed time scale to the self-profile mmap information. Signed-off-by: Peter Zijlstra LKML-Reference: Signed-off-by: Ingo Molnar --- include/linux/perf_counter.h | 4 +++- kernel/perf_counter.c | 6 ++++++ 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h index 489d5cbfbcc..bcbf1c43ed4 100644 --- a/include/linux/perf_counter.h +++ b/include/linux/perf_counter.h @@ -232,12 +232,14 @@ struct perf_counter_mmap_page { __u32 lock; /* seqlock for synchronization */ __u32 index; /* hardware counter identifier */ __s64 offset; /* add to hardware counter value */ + __u64 time_enabled; /* time counter active */ + __u64 time_running; /* time counter on cpu */ /* * Hole for extension of the self monitor capabilities */ - __u64 __reserved[125]; /* align to 1k */ + __u64 __reserved[123]; /* align to 1k */ /* * Control data for the mmap() data buffer. diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index c2b19c11171..23614adab47 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -1782,6 +1782,12 @@ void perf_counter_update_userpage(struct perf_counter *counter) if (counter->state == PERF_COUNTER_STATE_ACTIVE) userpg->offset -= atomic64_read(&counter->hw.prev_count); + userpg->time_enabled = counter->total_time_enabled + + atomic64_read(&counter->child_total_time_enabled); + + userpg->time_running = counter->total_time_running + + atomic64_read(&counter->child_total_time_running); + barrier(); ++userpg->lock; preempt_enable(); -- cgit v1.2.3 From 194002b274e9169a04beb1b23dcc132159bb566c Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Mon, 22 Jun 2009 16:35:24 +0200 Subject: perf_counter, x86: Add mmap counter read support Update the mmap control page with the needed information to use the userspace RDPMC instruction for self monitoring. Signed-off-by: Peter Zijlstra LKML-Reference: Signed-off-by: Ingo Molnar --- arch/powerpc/include/asm/perf_counter.h | 2 ++ arch/x86/include/asm/perf_counter.h | 3 +++ arch/x86/kernel/cpu/perf_counter.c | 6 ++++++ kernel/perf_counter.c | 10 +++++++++- 4 files changed, 20 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/include/asm/perf_counter.h b/arch/powerpc/include/asm/perf_counter.h index 8ccd4e15576..0ea0639fcf7 100644 --- a/arch/powerpc/include/asm/perf_counter.h +++ b/arch/powerpc/include/asm/perf_counter.h @@ -61,6 +61,8 @@ struct pt_regs; extern unsigned long perf_misc_flags(struct pt_regs *regs); extern unsigned long perf_instruction_pointer(struct pt_regs *regs); +#define PERF_COUNTER_INDEX_OFFSET 1 + /* * Only override the default definitions in include/linux/perf_counter.h * if we have hardware PMU support. diff --git a/arch/x86/include/asm/perf_counter.h b/arch/x86/include/asm/perf_counter.h index 5fb33e160ea..fa64e401589 100644 --- a/arch/x86/include/asm/perf_counter.h +++ b/arch/x86/include/asm/perf_counter.h @@ -87,6 +87,9 @@ union cpuid10_edx { #ifdef CONFIG_PERF_COUNTERS extern void init_hw_perf_counters(void); extern void perf_counters_lapic_init(void); + +#define PERF_COUNTER_INDEX_OFFSET 0 + #else static inline void init_hw_perf_counters(void) { } static inline void perf_counters_lapic_init(void) { } diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c index a310d19faca..b83474b6021 100644 --- a/arch/x86/kernel/cpu/perf_counter.c +++ b/arch/x86/kernel/cpu/perf_counter.c @@ -912,6 +912,8 @@ x86_perf_counter_set_period(struct perf_counter *counter, err = checking_wrmsrl(hwc->counter_base + idx, (u64)(-left) & x86_pmu.counter_mask); + perf_counter_update_userpage(counter); + return ret; } @@ -1034,6 +1036,8 @@ try_generic: x86_perf_counter_set_period(counter, hwc, idx); x86_pmu.enable(hwc, idx); + perf_counter_update_userpage(counter); + return 0; } @@ -1126,6 +1130,8 @@ static void x86_pmu_disable(struct perf_counter *counter) x86_perf_counter_update(counter, hwc, idx); cpuc->counters[idx] = NULL; clear_bit(idx, cpuc->used_mask); + + perf_counter_update_userpage(counter); } /* diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 23614adab47..02994a719e2 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -1753,6 +1753,14 @@ int perf_counter_task_disable(void) return 0; } +static int perf_counter_index(struct perf_counter *counter) +{ + if (counter->state != PERF_COUNTER_STATE_ACTIVE) + return 0; + + return counter->hw.idx + 1 - PERF_COUNTER_INDEX_OFFSET; +} + /* * Callers need to ensure there can be no nesting of this function, otherwise * the seqlock logic goes bad. We can not serialize this because the arch @@ -1777,7 +1785,7 @@ void perf_counter_update_userpage(struct perf_counter *counter) preempt_disable(); ++userpg->lock; barrier(); - userpg->index = counter->hw.idx; + userpg->index = perf_counter_index(counter); userpg->offset = atomic64_read(&counter->count); if (counter->state == PERF_COUNTER_STATE_ACTIVE) userpg->offset -= atomic64_read(&counter->hw.prev_count); -- cgit v1.2.3 From 38b200d67636a30cb8dc1508137908e7a649b5c9 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Tue, 23 Jun 2009 20:13:11 +0200 Subject: perf_counter: Add PERF_EVENT_READ Provide a read() like event which can be used to log the counter value at specific sites such as child->parent folding on exit. In order to be useful, we log the counter parent ID, not the actual counter ID, since userspace can only relate parent IDs to perf_counter_attr constructs. Signed-off-by: Peter Zijlstra LKML-Reference: Signed-off-by: Ingo Molnar --- include/linux/perf_counter.h | 12 ++++++++ kernel/perf_counter.c | 72 +++++++++++++++++++++++++++++++++++++++++--- 2 files changed, 80 insertions(+), 4 deletions(-) diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h index bcbf1c43ed4..6a384f04755 100644 --- a/include/linux/perf_counter.h +++ b/include/linux/perf_counter.h @@ -334,6 +334,18 @@ enum perf_event_type { */ PERF_EVENT_FORK = 7, + /* + * struct { + * struct perf_event_header header; + * u32 pid, tid; + * u64 value; + * { u64 time_enabled; } && PERF_FORMAT_ENABLED + * { u64 time_running; } && PERF_FORMAT_RUNNING + * { u64 parent_id; } && PERF_FORMAT_ID + * }; + */ + PERF_EVENT_READ = 8, + /* * When header.misc & PERF_EVENT_MISC_OVERFLOW the event_type field * will be PERF_SAMPLE_* diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 02994a719e2..a72c20e9195 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -2623,6 +2623,66 @@ static void perf_counter_output(struct perf_counter *counter, int nmi, perf_output_end(&handle); } +/* + * read event + */ + +struct perf_read_event { + struct perf_event_header header; + + u32 pid; + u32 tid; + u64 value; + u64 format[3]; +}; + +static void +perf_counter_read_event(struct perf_counter *counter, + struct task_struct *task) +{ + struct perf_output_handle handle; + struct perf_read_event event = { + .header = { + .type = PERF_EVENT_READ, + .misc = 0, + .size = sizeof(event) - sizeof(event.format), + }, + .pid = perf_counter_pid(counter, task), + .tid = perf_counter_tid(counter, task), + .value = atomic64_read(&counter->count), + }; + int ret, i = 0; + + if (counter->attr.read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) { + event.header.size += sizeof(u64); + event.format[i++] = counter->total_time_enabled; + } + + if (counter->attr.read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) { + event.header.size += sizeof(u64); + event.format[i++] = counter->total_time_running; + } + + if (counter->attr.read_format & PERF_FORMAT_ID) { + u64 id; + + event.header.size += sizeof(u64); + if (counter->parent) + id = counter->parent->id; + else + id = counter->id; + + event.format[i++] = id; + } + + ret = perf_output_begin(&handle, counter, event.header.size, 0, 0); + if (ret) + return; + + perf_output_copy(&handle, &event, event.header.size); + perf_output_end(&handle); +} + /* * fork tracking */ @@ -3985,10 +4045,13 @@ static int inherit_group(struct perf_counter *parent_counter, } static void sync_child_counter(struct perf_counter *child_counter, - struct perf_counter *parent_counter) + struct task_struct *child) { + struct perf_counter *parent_counter = child_counter->parent; u64 child_val; + perf_counter_read_event(child_counter, child); + child_val = atomic64_read(&child_counter->count); /* @@ -4017,7 +4080,8 @@ static void sync_child_counter(struct perf_counter *child_counter, static void __perf_counter_exit_task(struct perf_counter *child_counter, - struct perf_counter_context *child_ctx) + struct perf_counter_context *child_ctx, + struct task_struct *child) { struct perf_counter *parent_counter; @@ -4031,7 +4095,7 @@ __perf_counter_exit_task(struct perf_counter *child_counter, * counters need to be zapped - but otherwise linger. */ if (parent_counter) { - sync_child_counter(child_counter, parent_counter); + sync_child_counter(child_counter, child); free_counter(child_counter); } } @@ -4093,7 +4157,7 @@ void perf_counter_exit_task(struct task_struct *child) again: list_for_each_entry_safe(child_counter, tmp, &child_ctx->counter_list, list_entry) - __perf_counter_exit_task(child_counter, child_ctx); + __perf_counter_exit_task(child_counter, child_ctx, child); /* * If the last counter was a group counter, it will have appended all -- cgit v1.2.3 From bfbd3381e63aa2a14c6706afb50ce4630aa0d9a2 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Wed, 24 Jun 2009 21:11:59 +0200 Subject: perf_counter: Implement more accurate per task statistics With the introduction of PERF_EVENT_READ we have the possibility to provide accurate counter values for individual tasks in a task hierarchy. However, due to the lazy context switching used for similar counter contexts our current per task counts are way off. In order to maintain some of the lazy switch benefits we don't disable it out-right, but simply iterate the active counters and flip the values between the contexts. This only reads the counters but does not need to reprogram the full PMU. Signed-off-by: Peter Zijlstra LKML-Reference: Signed-off-by: Ingo Molnar --- include/linux/perf_counter.h | 4 ++- kernel/perf_counter.c | 83 ++++++++++++++++++++++++++++++++++++++++++-- 2 files changed, 83 insertions(+), 4 deletions(-) diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h index 6a384f04755..de70a10b5ec 100644 --- a/include/linux/perf_counter.h +++ b/include/linux/perf_counter.h @@ -178,8 +178,9 @@ struct perf_counter_attr { mmap : 1, /* include mmap data */ comm : 1, /* include comm data */ freq : 1, /* use freq, not period */ + inherit_stat : 1, /* per task counts */ - __reserved_1 : 53; + __reserved_1 : 52; __u32 wakeup_events; /* wakeup every n events */ __u32 __reserved_2; @@ -602,6 +603,7 @@ struct perf_counter_context { int nr_counters; int nr_active; int is_active; + int nr_stat; atomic_t refcount; struct task_struct *task; diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index a72c20e9195..385ca51c6e6 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -236,6 +236,8 @@ list_add_counter(struct perf_counter *counter, struct perf_counter_context *ctx) list_add_rcu(&counter->event_entry, &ctx->event_list); ctx->nr_counters++; + if (counter->attr.inherit_stat) + ctx->nr_stat++; } /* @@ -250,6 +252,8 @@ list_del_counter(struct perf_counter *counter, struct perf_counter_context *ctx) if (list_empty(&counter->list_entry)) return; ctx->nr_counters--; + if (counter->attr.inherit_stat) + ctx->nr_stat--; list_del_init(&counter->list_entry); list_del_rcu(&counter->event_entry); @@ -1006,6 +1010,76 @@ static int context_equiv(struct perf_counter_context *ctx1, && !ctx1->pin_count && !ctx2->pin_count; } +static void __perf_counter_read(void *counter); + +static void __perf_counter_sync_stat(struct perf_counter *counter, + struct perf_counter *next_counter) +{ + u64 value; + + if (!counter->attr.inherit_stat) + return; + + /* + * Update the counter value, we cannot use perf_counter_read() + * because we're in the middle of a context switch and have IRQs + * disabled, which upsets smp_call_function_single(), however + * we know the counter must be on the current CPU, therefore we + * don't need to use it. + */ + switch (counter->state) { + case PERF_COUNTER_STATE_ACTIVE: + __perf_counter_read(counter); + break; + + case PERF_COUNTER_STATE_INACTIVE: + update_counter_times(counter); + break; + + default: + break; + } + + /* + * In order to keep per-task stats reliable we need to flip the counter + * values when we flip the contexts. + */ + value = atomic64_read(&next_counter->count); + value = atomic64_xchg(&counter->count, value); + atomic64_set(&next_counter->count, value); + + /* + * XXX also sync time_enabled and time_running ? + */ +} + +#define list_next_entry(pos, member) \ + list_entry(pos->member.next, typeof(*pos), member) + +static void perf_counter_sync_stat(struct perf_counter_context *ctx, + struct perf_counter_context *next_ctx) +{ + struct perf_counter *counter, *next_counter; + + if (!ctx->nr_stat) + return; + + counter = list_first_entry(&ctx->event_list, + struct perf_counter, event_entry); + + next_counter = list_first_entry(&next_ctx->event_list, + struct perf_counter, event_entry); + + while (&counter->event_entry != &ctx->event_list && + &next_counter->event_entry != &next_ctx->event_list) { + + __perf_counter_sync_stat(counter, next_counter); + + counter = list_next_entry(counter, event_entry); + next_counter = list_next_entry(counter, event_entry); + } +} + /* * Called from scheduler to remove the counters of the current task, * with interrupts disabled. @@ -1061,6 +1135,8 @@ void perf_counter_task_sched_out(struct task_struct *task, ctx->task = next; next_ctx->task = task; do_switch = 0; + + perf_counter_sync_stat(ctx, next_ctx); } spin_unlock(&next_ctx->lock); spin_unlock(&ctx->lock); @@ -1350,7 +1426,7 @@ void perf_counter_task_tick(struct task_struct *curr, int cpu) /* * Cross CPU call to read the hardware counter */ -static void __read(void *info) +static void __perf_counter_read(void *info) { struct perf_counter *counter = info; struct perf_counter_context *ctx = counter->ctx; @@ -1372,7 +1448,7 @@ static u64 perf_counter_read(struct perf_counter *counter) */ if (counter->state == PERF_COUNTER_STATE_ACTIVE) { smp_call_function_single(counter->oncpu, - __read, counter, 1); + __perf_counter_read, counter, 1); } else if (counter->state == PERF_COUNTER_STATE_INACTIVE) { update_counter_times(counter); } @@ -4050,7 +4126,8 @@ static void sync_child_counter(struct perf_counter *child_counter, struct perf_counter *parent_counter = child_counter->parent; u64 child_val; - perf_counter_read_event(child_counter, child); + if (child_counter->attr.inherit_stat) + perf_counter_read_event(child_counter, child); child_val = atomic64_read(&child_counter->count); -- cgit v1.2.3 From e6e18ec79b023d5fe84226cef533cf0e3770ce93 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Thu, 25 Jun 2009 11:27:12 +0200 Subject: perf_counter: Rework the sample ABI The PERF_EVENT_READ implementation made me realize we don't actually need the sample_type int the output sample, since we already have that in the perf_counter_attr information. Therefore, remove the PERF_EVENT_MISC_OVERFLOW bit and the event->type overloading, and imply put counter overflow samples in a PERF_EVENT_SAMPLE type. This also fixes the issue that event->type was only 32-bit and sample_type had 64 usable bits. Signed-off-by: Peter Zijlstra LKML-Reference: Signed-off-by: Ingo Molnar --- include/linux/perf_counter.h | 10 +++++----- kernel/perf_counter.c | 36 +++++++++++++++--------------------- tools/perf/builtin-annotate.c | 8 ++++---- tools/perf/builtin-report.c | 32 +++++++++++++++++++------------- tools/perf/builtin-top.c | 11 ++++++----- 5 files changed, 49 insertions(+), 48 deletions(-) diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h index de70a10b5ec..3078e23c91e 100644 --- a/include/linux/perf_counter.h +++ b/include/linux/perf_counter.h @@ -262,7 +262,6 @@ struct perf_counter_mmap_page { #define PERF_EVENT_MISC_KERNEL (1 << 0) #define PERF_EVENT_MISC_USER (2 << 0) #define PERF_EVENT_MISC_HYPERVISOR (3 << 0) -#define PERF_EVENT_MISC_OVERFLOW (1 << 2) struct perf_event_header { __u32 type; @@ -348,9 +347,6 @@ enum perf_event_type { PERF_EVENT_READ = 8, /* - * When header.misc & PERF_EVENT_MISC_OVERFLOW the event_type field - * will be PERF_SAMPLE_* - * * struct { * struct perf_event_header header; * @@ -358,8 +354,9 @@ enum perf_event_type { * { u32 pid, tid; } && PERF_SAMPLE_TID * { u64 time; } && PERF_SAMPLE_TIME * { u64 addr; } && PERF_SAMPLE_ADDR - * { u64 config; } && PERF_SAMPLE_CONFIG + * { u64 id; } && PERF_SAMPLE_ID * { u32 cpu, res; } && PERF_SAMPLE_CPU + * { u64 period; } && PERF_SAMPLE_PERIOD * * { u64 nr; * { u64 id, val; } cnt[nr]; } && PERF_SAMPLE_GROUP @@ -368,6 +365,9 @@ enum perf_event_type { * u64 ips[nr]; } && PERF_SAMPLE_CALLCHAIN * }; */ + PERF_EVENT_SAMPLE = 9, + + PERF_EVENT_MAX, /* non-ABI */ }; enum perf_callchain_context { diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 385ca51c6e6..f2f23269658 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -2575,15 +2575,14 @@ static void perf_counter_output(struct perf_counter *counter, int nmi, u32 cpu, reserved; } cpu_entry; - header.type = 0; + header.type = PERF_EVENT_SAMPLE; header.size = sizeof(header); - header.misc = PERF_EVENT_MISC_OVERFLOW; + header.misc = 0; header.misc |= perf_misc_flags(data->regs); if (sample_type & PERF_SAMPLE_IP) { ip = perf_instruction_pointer(data->regs); - header.type |= PERF_SAMPLE_IP; header.size += sizeof(ip); } @@ -2592,7 +2591,6 @@ static void perf_counter_output(struct perf_counter *counter, int nmi, tid_entry.pid = perf_counter_pid(counter, current); tid_entry.tid = perf_counter_tid(counter, current); - header.type |= PERF_SAMPLE_TID; header.size += sizeof(tid_entry); } @@ -2602,34 +2600,25 @@ static void perf_counter_output(struct perf_counter *counter, int nmi, */ time = sched_clock(); - header.type |= PERF_SAMPLE_TIME; header.size += sizeof(u64); } - if (sample_type & PERF_SAMPLE_ADDR) { - header.type |= PERF_SAMPLE_ADDR; + if (sample_type & PERF_SAMPLE_ADDR) header.size += sizeof(u64); - } - if (sample_type & PERF_SAMPLE_ID) { - header.type |= PERF_SAMPLE_ID; + if (sample_type & PERF_SAMPLE_ID) header.size += sizeof(u64); - } if (sample_type & PERF_SAMPLE_CPU) { - header.type |= PERF_SAMPLE_CPU; header.size += sizeof(cpu_entry); cpu_entry.cpu = raw_smp_processor_id(); } - if (sample_type & PERF_SAMPLE_PERIOD) { - header.type |= PERF_SAMPLE_PERIOD; + if (sample_type & PERF_SAMPLE_PERIOD) header.size += sizeof(u64); - } if (sample_type & PERF_SAMPLE_GROUP) { - header.type |= PERF_SAMPLE_GROUP; header.size += sizeof(u64) + counter->nr_siblings * sizeof(group_entry); } @@ -2639,10 +2628,9 @@ static void perf_counter_output(struct perf_counter *counter, int nmi, if (callchain) { callchain_size = (1 + callchain->nr) * sizeof(u64); - - header.type |= PERF_SAMPLE_CALLCHAIN; header.size += callchain_size; - } + } else + header.size += sizeof(u64); } ret = perf_output_begin(&handle, counter, header.size, nmi, 1); @@ -2693,8 +2681,14 @@ static void perf_counter_output(struct perf_counter *counter, int nmi, } } - if (callchain) - perf_output_copy(&handle, callchain, callchain_size); + if (sample_type & PERF_SAMPLE_CALLCHAIN) { + if (callchain) + perf_output_copy(&handle, callchain, callchain_size); + else { + u64 nr = 0; + perf_output_put(&handle, nr); + } + } perf_output_end(&handle); } diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index 7e58e3ad150..722c0f54e54 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c @@ -855,7 +855,7 @@ static unsigned long total = 0, total_unknown = 0; static int -process_overflow_event(event_t *event, unsigned long offset, unsigned long head) +process_sample_event(event_t *event, unsigned long offset, unsigned long head) { char level; int show = 0; @@ -1013,10 +1013,10 @@ process_period_event(event_t *event, unsigned long offset, unsigned long head) static int process_event(event_t *event, unsigned long offset, unsigned long head) { - if (event->header.misc & PERF_EVENT_MISC_OVERFLOW) - return process_overflow_event(event, offset, head); - switch (event->header.type) { + case PERF_EVENT_SAMPLE: + return process_sample_event(event, offset, head); + case PERF_EVENT_MMAP: return process_mmap_event(event, offset, head); diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index e575f303976..ec5361c67bf 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -53,6 +53,8 @@ static regex_t parent_regex; static int exclude_other = 1; +static u64 sample_type; + struct ip_event { struct perf_event_header header; u64 ip; @@ -1135,7 +1137,7 @@ static int validate_chain(struct ip_callchain *chain, event_t *event) } static int -process_overflow_event(event_t *event, unsigned long offset, unsigned long head) +process_sample_event(event_t *event, unsigned long offset, unsigned long head) { char level; int show = 0; @@ -1147,12 +1149,12 @@ process_overflow_event(event_t *event, unsigned long offset, unsigned long head) void *more_data = event->ip.__more_data; struct ip_callchain *chain = NULL; - if (event->header.type & PERF_SAMPLE_PERIOD) { + if (sample_type & PERF_SAMPLE_PERIOD) { period = *(u64 *)more_data; more_data += sizeof(u64); } - dprintf("%p [%p]: PERF_EVENT (IP, %d): %d: %p period: %Ld\n", + dprintf("%p [%p]: PERF_EVENT_SAMPLE (IP, %d): %d: %p period: %Ld\n", (void *)(offset + head), (void *)(long)(event->header.size), event->header.misc, @@ -1160,7 +1162,7 @@ process_overflow_event(event_t *event, unsigned long offset, unsigned long head) (void *)(long)ip, (long long)period); - if (event->header.type & PERF_SAMPLE_CALLCHAIN) { + if (sample_type & PERF_SAMPLE_CALLCHAIN) { int i; chain = (void *)more_data; @@ -1352,10 +1354,10 @@ process_event(event_t *event, unsigned long offset, unsigned long head) { trace_event(event); - if (event->header.misc & PERF_EVENT_MISC_OVERFLOW) - return process_overflow_event(event, offset, head); - switch (event->header.type) { + case PERF_EVENT_SAMPLE: + return process_sample_event(event, offset, head); + case PERF_EVENT_MMAP: return process_mmap_event(event, offset, head); @@ -1388,18 +1390,21 @@ process_event(event_t *event, unsigned long offset, unsigned long head) static struct perf_header *header; -static int perf_header__has_sample(u64 sample_mask) +static u64 perf_header__sample_type(void) { + u64 sample_type = 0; int i; for (i = 0; i < header->attrs; i++) { struct perf_header_attr *attr = header->attr[i]; - if (!(attr->attr.sample_type & sample_mask)) - return 0; + if (!sample_type) + sample_type = attr->attr.sample_type; + else if (sample_type != attr->attr.sample_type) + die("non matching sample_type"); } - return 1; + return sample_type; } static int __cmd_report(void) @@ -1437,8 +1442,9 @@ static int __cmd_report(void) header = perf_header__read(input); head = header->data_offset; - if (sort__has_parent && - !perf_header__has_sample(PERF_SAMPLE_CALLCHAIN)) { + sample_type = perf_header__sample_type(); + + if (sort__has_parent && !(sample_type & PERF_SAMPLE_CALLCHAIN)) { fprintf(stderr, "selected --sort parent, but no callchain data\n"); exit(-1); } diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 5352b5e352e..cf0d21f1ae1 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -392,11 +392,11 @@ static void record_ip(u64 ip, int counter) samples--; } -static void process_event(u64 ip, int counter) +static void process_event(u64 ip, int counter, int user) { samples++; - if (ip < min_ip || ip > max_ip) { + if (user) { userspace_samples++; return; } @@ -509,9 +509,10 @@ static void mmap_read_counter(struct mmap_data *md) old += size; - if (event->header.misc & PERF_EVENT_MISC_OVERFLOW) { - if (event->header.type & PERF_SAMPLE_IP) - process_event(event->ip.ip, md->counter); + if (event->header.type == PERF_EVENT_SAMPLE) { + int user = + (event->header.misc & PERF_EVENT_MISC_CPUMODE_MASK) == PERF_EVENT_MISC_USER; + process_event(event->ip.ip, md->counter, user); } } -- cgit v1.2.3 From 649c48a9e7fafcc72bfcc99471d9dea98d789d59 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Wed, 24 Jun 2009 21:12:48 +0200 Subject: perf-report: Add modes for inherited stats and no-samples Now that we can collect per task statistics, add modes that make use of that facility. Signed-off-by: Peter Zijlstra LKML-Reference: Signed-off-by: Ingo Molnar --- tools/perf/builtin-record.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index f4f0240d230..798a56d890e 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -41,6 +41,8 @@ static int force = 0; static int append_file = 0; static int call_graph = 0; static int verbose = 0; +static int inherit_stat = 0; +static int no_samples = 0; static long samples; static struct timeval last_read; @@ -393,6 +395,12 @@ static void create_counter(int counter, int cpu, pid_t pid) attr->sample_freq = freq; } + if (no_samples) + attr->sample_freq = 0; + + if (inherit_stat) + attr->inherit_stat = 1; + if (call_graph) attr->sample_type |= PERF_SAMPLE_CALLCHAIN; @@ -571,7 +579,7 @@ static int __cmd_record(int argc, const char **argv) } } - while (!done) { + for (;;) { int hits = samples; for (i = 0; i < nr_cpu; i++) { @@ -579,8 +587,11 @@ static int __cmd_record(int argc, const char **argv) mmap_read(&mmap_array[i][counter]); } - if (hits == samples) + if (hits == samples) { + if (done) + break; ret = poll(event_array, nr_poll, 100); + } } /* @@ -629,6 +640,10 @@ static const struct option options[] = { "do call-graph (stack chain/backtrace) recording"), OPT_BOOLEAN('v', "verbose", &verbose, "be more verbose (show counter open errors, etc)"), + OPT_BOOLEAN('s', "stat", &inherit_stat, + "per thread counts"), + OPT_BOOLEAN('n', "no-samples", &no_samples, + "don't sample"), OPT_END() }; -- cgit v1.2.3 From e9ea2fde7a07ae60a119171a2946ed2ae778271e Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Wed, 24 Jun 2009 22:46:04 +0200 Subject: perf-report: Add bare minimum PERF_EVENT_READ parsing Provide the basic infrastructure to provide per task stats. Signed-off-by: Peter Zijlstra LKML-Reference: Signed-off-by: Ingo Molnar --- tools/perf/builtin-report.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index ec5361c67bf..681c2233f88 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -100,6 +100,13 @@ struct lost_event { u64 lost; }; +struct read_event { + struct perf_event_header header; + u32 pid,tid; + u64 value; + u64 format[3]; +}; + typedef union event_union { struct perf_event_header header; struct ip_event ip; @@ -108,6 +115,7 @@ typedef union event_union { struct fork_event fork; struct period_event period; struct lost_event lost; + struct read_event read; } event_t; static LIST_HEAD(dsos); @@ -1349,6 +1357,19 @@ static void trace_event(event_t *event) dprintf(".\n"); } +static int +process_read_event(event_t *event, unsigned long offset, unsigned long head) +{ + dprintf("%p [%p]: PERF_EVENT_READ: %d %d %Lu\n", + (void *)(offset + head), + (void *)(long)(event->header.size), + event->read.pid, + event->read.tid, + event->read.value); + + return 0; +} + static int process_event(event_t *event, unsigned long offset, unsigned long head) { @@ -1373,6 +1394,9 @@ process_event(event_t *event, unsigned long offset, unsigned long head) case PERF_EVENT_LOST: return process_lost_event(event, offset, head); + case PERF_EVENT_READ: + return process_read_event(event, offset, head); + /* * We dont process them right now but they are fine: */ -- cgit v1.2.3 From 4418351f06d9ce73acc846158c20186965f920f3 Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Thu, 25 Jun 2009 21:27:42 +0530 Subject: perf_counter tools: Add alias for 'l1d' and 'l1i' Add 'l1d' and 'l1i' aliases again as shortcuts - just dont make them the primary display alias. Signed-off-by: Jaswinder Singh Rajput Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras LKML-Reference: <1245945462.9157.11.camel@hpdv5.satnam> Signed-off-by: Ingo Molnar --- tools/perf/util/parse-events.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 430f0608320..4d042f104cd 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -71,8 +71,8 @@ static char *sw_event_names[] = { #define MAX_ALIASES 8 static char *hw_cache[][MAX_ALIASES] = { - { "L1-d$", "l1-d", "L1-data", }, - { "L1-i$", "l1-i", "L1-instruction", }, + { "L1-d$", "l1-d", "l1d", "L1-data", }, + { "L1-i$", "l1-i", "l1i", "L1-instruction", }, { "LLC", "L2" }, { "dTLB", "d-tlb", "Data-TLB", }, { "iTLB", "i-tlb", "Instruction-TLB", }, -- cgit v1.2.3 From 5211a242d0cbdded372aee59da18f80552b0a80a Mon Sep 17 00:00:00 2001 From: Kurt Garloff Date: Wed, 24 Jun 2009 14:32:11 -0700 Subject: x86: Add sysctl to allow panic on IOCK NMI error This patch introduces a new sysctl: /proc/sys/kernel/panic_on_io_nmi which defaults to 0 (off). When enabled, the kernel panics when the kernel receives an NMI caused by an IO error. The IO error triggered NMI indicates a serious system condition, which could result in IO data corruption. Rather than contiuing, panicing and dumping might be a better choice, so one can figure out what's causing the IO error. This could be especially important to companies running IO intensive applications where corruption must be avoided, e.g. a bank's databases. [ SuSE has been shipping it for a while, it was done at the request of a large database vendor, for their users. ] Signed-off-by: Kurt Garloff Signed-off-by: Roberto Angelino Signed-off-by: Greg Kroah-Hartman Cc: "Eric W. Biederman" LKML-Reference: <20090624213211.GA11291@kroah.com> Signed-off-by: Ingo Molnar --- arch/x86/kernel/dumpstack.c | 1 + arch/x86/kernel/traps.c | 3 +++ include/linux/kernel.h | 1 + kernel/sysctl.c | 8 ++++++++ 4 files changed, 13 insertions(+) diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c index 95ea5fa7d44..c8405718a4c 100644 --- a/arch/x86/kernel/dumpstack.c +++ b/arch/x86/kernel/dumpstack.c @@ -22,6 +22,7 @@ #include "dumpstack.h" int panic_on_unrecovered_nmi; +int panic_on_io_nmi; unsigned int code_bytes = 64; int kstack_depth_to_print = 3 * STACKSLOTS_PER_LINE; static int die_counter; diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index a0f48f5671c..5204332f475 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -346,6 +346,9 @@ io_check_error(unsigned char reason, struct pt_regs *regs) printk(KERN_EMERG "NMI: IOCK error (debug interrupt?)\n"); show_registers(regs); + if (panic_on_io_nmi) + panic("NMI IOCK error: Not continuing"); + /* Re-enable the IOCK line, wait for a few seconds */ reason = (reason & 0xf) | 8; outb(reason, 0x61); diff --git a/include/linux/kernel.h b/include/linux/kernel.h index fac104e7186..d6320a3e8de 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -303,6 +303,7 @@ extern int oops_in_progress; /* If set, an oops, panic(), BUG() or die() is in extern int panic_timeout; extern int panic_on_oops; extern int panic_on_unrecovered_nmi; +extern int panic_on_io_nmi; extern const char *print_tainted(void); extern void add_taint(unsigned flag); extern int test_taint(unsigned flag); diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 62e4ff9968b..fba42eda8de 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -743,6 +743,14 @@ static struct ctl_table kern_table[] = { .mode = 0644, .proc_handler = &proc_dointvec, }, + { + .ctl_name = CTL_UNNUMBERED, + .procname = "panic_on_io_nmi", + .data = &panic_on_io_nmi, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, { .ctl_name = KERN_BOOTLOADER_TYPE, .procname = "bootloader_type", -- cgit v1.2.3 From 3928ddbe994cce1da1b6365b0db04d5765f254f4 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Thu, 25 Jun 2009 22:21:27 +0200 Subject: perf record: Fix unhandled io return value MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Building latest perfcounter fails on the following error: builtin-record.c: In function ‘create_counter’: builtin-record.c:451: erreur: ignoring return value of ‘read’, declared with attribute warn_unused_result make: *** [builtin-record.o] Erreur 1 Just check if we successfully read the perf file descriptor. Signed-off-by: Frederic Weisbecker Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Frederic Weisbecker LKML-Reference: <1245961287-5327-1-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar --- tools/perf/builtin-record.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 798a56d890e..d18546f37d7 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -448,7 +448,10 @@ try_again: } } - read(fd[nr_cpu][counter], &read_data, sizeof(read_data)); + if (read(fd[nr_cpu][counter], &read_data, sizeof(read_data)) == -1) { + perror("Unable to read perf file descriptor\n"); + exit(-1); + } perf_header_attr__add_id(h_attr, read_data.id); -- cgit v1.2.3 From 5be6066a7f8d917db347d94f1b359b9b70dcb572 Mon Sep 17 00:00:00 2001 From: Hidetoshi Seto Date: Wed, 24 Jun 2009 09:21:10 +0900 Subject: x86, mce: percpu mcheck_timer should be pinned If CONFIG_NO_HZ + CONFIG_SMP, timer added via add_timer() might be migrated on other cpu. Use add_timer_on() instead. Avoids the following failure: Maciej Rutecki wrote: > > After normal boot I try: > > > > echo 1 > /sys/devices/system/machinecheck/machinecheck0/check_interval > > > > I found this in dmesg: > > > > [ 141.704025] ------------[ cut here ]------------ > > [ 141.704039] WARNING: at arch/x86/kernel/cpu/mcheck/mce.c:1102 > > mcheck_timer+0xf5/0x100() Reported-by: Maciej Rutecki Signed-off-by: Hidetoshi Seto Tested-by: Maciej Rutecki Acked-by: Andi Kleen Signed-off-by: H. Peter Anvin --- arch/x86/kernel/cpu/mcheck/mce.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 284d1de968b..af425b83202 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -1117,7 +1117,7 @@ static void mcheck_timer(unsigned long data) *n = min(*n*2, (int)round_jiffies_relative(check_interval*HZ)); t->expires = jiffies + *n; - add_timer(t); + add_timer_on(t, smp_processor_id()); } static void mce_do_trigger(struct work_struct *work) @@ -1321,7 +1321,7 @@ static void mce_init_timer(void) return; setup_timer(t, mcheck_timer, smp_processor_id()); t->expires = round_jiffies(jiffies + *n); - add_timer(t); + add_timer_on(t, smp_processor_id()); } /* -- cgit v1.2.3 From 22f4319d6bc0155e6c0ae560729baa6c09dc09e7 Mon Sep 17 00:00:00 2001 From: "Robert P. J. Day" Date: Thu, 25 Jun 2009 16:20:48 -0400 Subject: x86, setup: Fix typo "CONFIG_x86_64" in CONFIG_X86_64 was misspelled (wrong case), which caused the x86-64 kernel to advertise itself as more relocatable than it really is. This could in theory cause boot failures once bootloaders start support the new relocation fields. Signed-off-by: Robert P. J. Day Signed-off-by: H. Peter Anvin --- arch/x86/include/asm/boot.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/include/asm/boot.h b/arch/x86/include/asm/boot.h index 418e632d4a8..6f02b9a5384 100644 --- a/arch/x86/include/asm/boot.h +++ b/arch/x86/include/asm/boot.h @@ -16,7 +16,7 @@ & ~(CONFIG_PHYSICAL_ALIGN - 1)) /* Minimum kernel alignment, as a power of two */ -#ifdef CONFIG_x86_64 +#ifdef CONFIG_X86_64 #define MIN_KERNEL_ALIGN_LG2 PMD_SHIFT #else #define MIN_KERNEL_ALIGN_LG2 (PAGE_SHIFT+1) -- cgit v1.2.3 From 658dbfeb5e7ab35d440c665d643a6285e43fddcd Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Thu, 25 Jun 2009 15:16:06 -0700 Subject: x86, setup: correct include file in needs , not in order to resolve PMD_SHIFT. Also, correct a +1 which really should be + THREAD_ORDER. This is a build error which was masked by a typoed #ifdef. Signed-off-by: H. Peter Anvin --- arch/x86/include/asm/boot.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/include/asm/boot.h b/arch/x86/include/asm/boot.h index 6f02b9a5384..7a1065958ba 100644 --- a/arch/x86/include/asm/boot.h +++ b/arch/x86/include/asm/boot.h @@ -8,7 +8,7 @@ #ifdef __KERNEL__ -#include +#include /* Physical address where kernel should be loaded. */ #define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \ @@ -19,7 +19,7 @@ #ifdef CONFIG_X86_64 #define MIN_KERNEL_ALIGN_LG2 PMD_SHIFT #else -#define MIN_KERNEL_ALIGN_LG2 (PAGE_SHIFT+1) +#define MIN_KERNEL_ALIGN_LG2 (PAGE_SHIFT + THREAD_ORDER) #endif #define MIN_KERNEL_ALIGN (_AC(1, UL) << MIN_KERNEL_ALIGN_LG2) -- cgit v1.2.3 From e888d7facd1f1460a638151036d15b6cfb3ccc74 Mon Sep 17 00:00:00 2001 From: "Pallipadi, Venkatesh" Date: Thu, 25 Jun 2009 16:44:31 -0700 Subject: x86, delay: tsc based udelay should have rdtsc_barrier delay_tsc needs rdtsc_barrier to provide proper delay. Output from a test driver using hpet to cross check delay provided by udelay(). Before: [ 86.794363] Expected delay 5us actual 4679ns [ 87.154362] Expected delay 5us actual 698ns [ 87.514162] Expected delay 5us actual 4539ns [ 88.653716] Expected delay 5us actual 4539ns [ 94.664106] Expected delay 10us actual 9638ns [ 95.049351] Expected delay 10us actual 10126ns [ 95.416110] Expected delay 10us actual 9568ns [ 95.799216] Expected delay 10us actual 9638ns [ 103.624104] Expected delay 10us actual 9707ns [ 104.020619] Expected delay 10us actual 768ns [ 104.419951] Expected delay 10us actual 9707ns After: [ 50.983320] Expected delay 5us actual 5587ns [ 51.261807] Expected delay 5us actual 5587ns [ 51.565715] Expected delay 5us actual 5657ns [ 51.861171] Expected delay 5us actual 5587ns [ 52.164704] Expected delay 5us actual 5726ns [ 52.487457] Expected delay 5us actual 5657ns [ 52.789338] Expected delay 5us actual 5726ns [ 57.119680] Expected delay 10us actual 10755ns [ 57.893997] Expected delay 10us actual 10615ns [ 58.261287] Expected delay 10us actual 10755ns [ 58.620505] Expected delay 10us actual 10825ns [ 58.941035] Expected delay 10us actual 10755ns [ 59.320903] Expected delay 10us actual 10615ns [ 61.306311] Expected delay 10us actual 10755ns [ 61.520542] Expected delay 10us actual 10615ns Signed-off-by: Venkatesh Pallipadi Signed-off-by: H. Peter Anvin --- arch/x86/lib/delay.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/lib/delay.c b/arch/x86/lib/delay.c index f4568605d7d..ff485d36118 100644 --- a/arch/x86/lib/delay.c +++ b/arch/x86/lib/delay.c @@ -55,8 +55,10 @@ static void delay_tsc(unsigned long loops) preempt_disable(); cpu = smp_processor_id(); + rdtsc_barrier(); rdtscl(bclock); for (;;) { + rdtsc_barrier(); rdtscl(now); if ((now - bclock) >= loops) break; @@ -78,6 +80,7 @@ static void delay_tsc(unsigned long loops) if (unlikely(cpu != smp_processor_id())) { loops -= (now - bclock); cpu = smp_processor_id(); + rdtsc_barrier(); rdtscl(bclock); } } -- cgit v1.2.3 From 14a2ff6ed28931f796d2c2c8a440227a5d90f441 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 25 Jun 2009 19:00:47 -0700 Subject: sparc64: Don't use alloc_bootmem() in init_IRQ() code paths. The page allocator and SLAB are available at this point now, and if we still try to use bootmem allocations here the kernel spits out warnings. Signed-off-by: David S. Miller --- arch/sparc/kernel/irq_64.c | 45 +++++++++++++++++++-------------------------- 1 file changed, 19 insertions(+), 26 deletions(-) diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c index bd075054942..f0ee7905540 100644 --- a/arch/sparc/kernel/irq_64.c +++ b/arch/sparc/kernel/irq_64.c @@ -20,7 +20,6 @@ #include #include #include -#include #include #include @@ -914,25 +913,19 @@ void __cpuinit notrace sun4v_register_mondo_queues(int this_cpu) tb->nonresum_qmask); } -static void __init alloc_one_mondo(unsigned long *pa_ptr, unsigned long qmask) -{ - unsigned long size = PAGE_ALIGN(qmask + 1); - void *p = __alloc_bootmem(size, size, 0); - if (!p) { - prom_printf("SUN4V: Error, cannot allocate mondo queue.\n"); - prom_halt(); - } - - *pa_ptr = __pa(p); -} - -static void __init alloc_one_kbuf(unsigned long *pa_ptr, unsigned long qmask) +/* Each queue region must be a power of 2 multiple of 64 bytes in + * size. The base real address must be aligned to the size of the + * region. Thus, an 8KB queue must be 8KB aligned, for example. + */ +static void __init alloc_one_queue(unsigned long *pa_ptr, unsigned long qmask) { unsigned long size = PAGE_ALIGN(qmask + 1); - void *p = __alloc_bootmem(size, size, 0); + unsigned long order = get_order(size); + unsigned long p; + p = __get_free_pages(GFP_KERNEL, order); if (!p) { - prom_printf("SUN4V: Error, cannot allocate kbuf page.\n"); + prom_printf("SUN4V: Error, cannot allocate queue.\n"); prom_halt(); } @@ -942,11 +935,11 @@ static void __init alloc_one_kbuf(unsigned long *pa_ptr, unsigned long qmask) static void __init init_cpu_send_mondo_info(struct trap_per_cpu *tb) { #ifdef CONFIG_SMP - void *page; + unsigned long page; BUILD_BUG_ON((NR_CPUS * sizeof(u16)) > (PAGE_SIZE - 64)); - page = alloc_bootmem_pages(PAGE_SIZE); + page = get_zeroed_page(GFP_KERNEL); if (!page) { prom_printf("SUN4V: Error, cannot allocate cpu mondo page.\n"); prom_halt(); @@ -965,13 +958,13 @@ static void __init sun4v_init_mondo_queues(void) for_each_possible_cpu(cpu) { struct trap_per_cpu *tb = &trap_block[cpu]; - alloc_one_mondo(&tb->cpu_mondo_pa, tb->cpu_mondo_qmask); - alloc_one_mondo(&tb->dev_mondo_pa, tb->dev_mondo_qmask); - alloc_one_mondo(&tb->resum_mondo_pa, tb->resum_qmask); - alloc_one_kbuf(&tb->resum_kernel_buf_pa, tb->resum_qmask); - alloc_one_mondo(&tb->nonresum_mondo_pa, tb->nonresum_qmask); - alloc_one_kbuf(&tb->nonresum_kernel_buf_pa, - tb->nonresum_qmask); + alloc_one_queue(&tb->cpu_mondo_pa, tb->cpu_mondo_qmask); + alloc_one_queue(&tb->dev_mondo_pa, tb->dev_mondo_qmask); + alloc_one_queue(&tb->resum_mondo_pa, tb->resum_qmask); + alloc_one_queue(&tb->resum_kernel_buf_pa, tb->resum_qmask); + alloc_one_queue(&tb->nonresum_mondo_pa, tb->nonresum_qmask); + alloc_one_queue(&tb->nonresum_kernel_buf_pa, + tb->nonresum_qmask); } } @@ -999,7 +992,7 @@ void __init init_IRQ(void) kill_prom_timer(); size = sizeof(struct ino_bucket) * NUM_IVECS; - ivector_table = alloc_bootmem(size); + ivector_table = kzalloc(size, GFP_KERNEL); if (!ivector_table) { prom_printf("Fatal error, cannot allocate ivector_table\n"); prom_halt(); -- cgit v1.2.3 From 413ee282a510afb2f18975a189501f39d279a906 Mon Sep 17 00:00:00 2001 From: Julian Calaby Date: Sun, 21 Jun 2009 16:44:13 +0000 Subject: sparc64: Fix build warnings in piggyback_64.c This patch fixes the following build warnings: arch/sparc/boot/piggyback_64.c: In function 'main': arch/sparc/boot/piggyback_64.c:44: warning: 'end' may be used uninitialized in this function arch/sparc/boot/piggyback_64.c:44: warning: 'start' may be used uninitialized in this function Signed-off-by: Julian Calaby Signed-off-by: David S. Miller --- arch/sparc/boot/piggyback_64.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/sparc/boot/piggyback_64.c b/arch/sparc/boot/piggyback_64.c index de364bfed0b..c63fd1b6bdd 100644 --- a/arch/sparc/boot/piggyback_64.c +++ b/arch/sparc/boot/piggyback_64.c @@ -46,6 +46,7 @@ int main(int argc,char **argv) struct stat s; int image, tail; + start = end = 0; if (stat (argv[3], &s) < 0) die (argv[3]); map = fopen (argv[2], "r"); if (!map) die(argv[2]); -- cgit v1.2.3 From 22b096a8907e5184f25fafd1b73f0b3633d52495 Mon Sep 17 00:00:00 2001 From: Robert Reif Date: Sun, 21 Jun 2009 16:45:44 +0000 Subject: sparc32: Fix obvious build issues for tftpboot.img build. Signed-off-by: Robert Reif Signed-off-by: David S. Miller --- arch/sparc/boot/Makefile | 2 +- arch/sparc/boot/piggyback_32.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/sparc/boot/Makefile b/arch/sparc/boot/Makefile index 96041a8d39e..5e2caeb3110 100644 --- a/arch/sparc/boot/Makefile +++ b/arch/sparc/boot/Makefile @@ -58,7 +58,7 @@ $(obj)/image: $(obj)/btfix.o FORCE $(obj)/zImage: $(obj)/image $(call if_changed,strip) -$(obj)/tftpboot.img: $(obj)/piggyback $(obj)/System.map $(obj)/image FORCE +$(obj)/tftpboot.img: $(obj)/piggyback_32 $(obj)/System.map $(obj)/image FORCE $(call if_changed,elftoaout) $(call if_changed,piggy) diff --git a/arch/sparc/boot/piggyback_32.c b/arch/sparc/boot/piggyback_32.c index c9f500c1a8b..3f0f9335454 100644 --- a/arch/sparc/boot/piggyback_32.c +++ b/arch/sparc/boot/piggyback_32.c @@ -70,7 +70,7 @@ void die(char *str) int main(int argc,char **argv) { static char aout_magic[] = { 0x01, 0x03, 0x01, 0x07 }; - unsigned char buffer[1024], *q, *r; + char buffer[1024], *q, *r; unsigned int i, j, k, start, end, offset; FILE *map; struct stat s; -- cgit v1.2.3 From 52da82cfb569b44e26e15395a6727277758580fe Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Sun, 21 Jun 2009 16:46:10 +0000 Subject: sparc: fix tftpboot.img build Kjetil Oftedal mentioned that piggyback_32 was failing when building a sparc image. I tracked this down to the fact that the kernel no longer provided an absolute symbol named "end". Commit 86ed40bd6fe511d26bb8f3fa65a84cb65c235366 ("sparc: unify sections.h") renamed end to _end but failed to update piggyback_32. Signed-off-by: Sam Ravnborg Cc: Kjetil Oftedal Cc: Robert Reif Signed-off-by: Julian Calaby Signed-off-by: David S. Miller --- arch/sparc/boot/piggyback_32.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/sparc/boot/piggyback_32.c b/arch/sparc/boot/piggyback_32.c index 3f0f9335454..e8dc9adfcd6 100644 --- a/arch/sparc/boot/piggyback_32.c +++ b/arch/sparc/boot/piggyback_32.c @@ -84,7 +84,7 @@ int main(int argc,char **argv) while (fgets (buffer, 1024, map)) { if (!strcmp (buffer + 8, " T start\n") || !strcmp (buffer + 16, " T start\n")) start = strtoul (buffer, NULL, 16); - else if (!strcmp (buffer + 8, " A end\n") || !strcmp (buffer + 16, " A end\n")) + else if (!strcmp (buffer + 8, " A _end\n") || !strcmp (buffer + 16, " A _end\n")) end = strtoul (buffer, NULL, 16); } fclose (map); -- cgit v1.2.3 From 3e05c5e2ce40066582dc34aa8335baa328815a09 Mon Sep 17 00:00:00 2001 From: Julian Calaby Date: Sun, 21 Jun 2009 16:45:01 +0000 Subject: sparc32: Fix tftpboot.img Makefile Signed-off-by: Julian Calaby Signed-off-by: David S. Miller --- arch/sparc/boot/Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/sparc/boot/Makefile b/arch/sparc/boot/Makefile index 5e2caeb3110..500a2f87f28 100644 --- a/arch/sparc/boot/Makefile +++ b/arch/sparc/boot/Makefile @@ -15,7 +15,7 @@ quiet_cmd_elftoaout = ELFTOAOUT $@ ifeq ($(CONFIG_SPARC32),y) quiet_cmd_piggy = PIGGY $@ - cmd_piggy = $(obj)/piggyback_32 $@ $(obj)/System.map $(ROOT_IMG) + cmd_piggy = $(obj)/piggyback_32 $@ System.map $(ROOT_IMG) quiet_cmd_btfix = BTFIX $@ cmd_btfix = $(OBJDUMP) -x vmlinux | $(obj)/btfixupprep > $@ quiet_cmd_sysmap = SYSMAP $(obj)/System.map @@ -58,7 +58,7 @@ $(obj)/image: $(obj)/btfix.o FORCE $(obj)/zImage: $(obj)/image $(call if_changed,strip) -$(obj)/tftpboot.img: $(obj)/piggyback_32 $(obj)/System.map $(obj)/image FORCE +$(obj)/tftpboot.img: $(obj)/piggyback_32 System.map $(ROOT_IMG) FORCE $(call if_changed,elftoaout) $(call if_changed,piggy) -- cgit v1.2.3 From 8944146daa2c38dd85bc489d1b84fb9abc108837 Mon Sep 17 00:00:00 2001 From: Julian Calaby Date: Tue, 23 Jun 2009 01:45:46 +0000 Subject: sparc32: Fix makefile not generating required files The tftpboot build was failing with missing file errors. It turns out that $(obj)/image wasn't being generated which was causing the a.out conversion to be skipped and hence piggyback to be called with nonexistent files. Signed-off-by: Julian Calaby Signed-off-by: David S. Miller --- arch/sparc/boot/Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/sparc/boot/Makefile b/arch/sparc/boot/Makefile index 500a2f87f28..1ff0fd92475 100644 --- a/arch/sparc/boot/Makefile +++ b/arch/sparc/boot/Makefile @@ -58,7 +58,7 @@ $(obj)/image: $(obj)/btfix.o FORCE $(obj)/zImage: $(obj)/image $(call if_changed,strip) -$(obj)/tftpboot.img: $(obj)/piggyback_32 System.map $(ROOT_IMG) FORCE +$(obj)/tftpboot.img: $(obj)/image $(obj)/piggyback_32 System.map $(ROOT_IMG) FORCE $(call if_changed,elftoaout) $(call if_changed,piggy) @@ -79,7 +79,7 @@ $(obj)/image: vmlinux FORCE $(call if_changed,strip) @echo ' kernel: $@ is ready' -$(obj)/tftpboot.img: vmlinux $(obj)/piggyback_64 System.map $(ROOT_IMG) FORCE +$(obj)/tftpboot.img: $(obj)/image $(obj)/piggyback_64 System.map $(ROOT_IMG) FORCE $(call if_changed,elftoaout) $(call if_changed,piggy) @echo ' kernel: $@ is ready' -- cgit v1.2.3 From ad8034f19792736db5c259103c2eaaf72887bbb4 Mon Sep 17 00:00:00 2001 From: Steve French Date: Fri, 26 Jun 2009 03:25:49 +0000 Subject: [CIFS] remove bkl usage from umount begin The lock_kernel call moved into the fs for umount_begin is not needed. This adds a check to make sure we don't call umount_begin twice on the same fs. umount_begin for cifs is probably not needed and may eventually be able to be removed, but in the meantime this smaller patch is safe and gets rid of the bkl from this path which provides some benefit. Acked-by: Jeff Layton Signed-off-by: Steve French --- fs/cifs/cifsfs.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index b5e9f398c2e..9f669f982c4 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -537,9 +537,14 @@ static void cifs_umount_begin(struct super_block *sb) if (tcon == NULL) return; - lock_kernel(); read_lock(&cifs_tcp_ses_lock); - if (tcon->tc_count == 1) + if ((tcon->tc_count > 1) || (tcon->tidStatus == CifsExiting)) { + /* we have other mounts to same share or we have + already tried to force umount this and woken up + all waiting network requests, nothing to do */ + read_unlock(&cifs_tcp_ses_lock); + return; + } else if (tcon->tc_count == 1) tcon->tidStatus = CifsExiting; read_unlock(&cifs_tcp_ses_lock); @@ -554,9 +559,7 @@ static void cifs_umount_begin(struct super_block *sb) wake_up_all(&tcon->ses->server->response_q); msleep(1); } -/* BB FIXME - finish add checks for tidStatus BB */ - unlock_kernel(); return; } -- cgit v1.2.3 From 71a394faaad07090af5de5c075ec2f5bca0fbb35 Mon Sep 17 00:00:00 2001 From: Steve French Date: Fri, 26 Jun 2009 04:07:18 +0000 Subject: [CIFS] remove unknown mount option warning message Jeff's previous patch which removed the unneeded rw/ro parsing can cause a minor warning in dmesg (about the unknown rw or ro mount option) at mount time. This patch makes cifs ignore them in kernel to remove the warning (they are already handled in the mount helper and VFS). Signed-off-by: Steve French --- fs/cifs/connect.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 12c2cf69355..e16d7592116 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1196,6 +1196,10 @@ cifs_parse_mount_options(char *options, const char *devname, /* ignore */ } else if (strnicmp(data, "guest", 5) == 0) { /* ignore */ + } else if (strnicmp(data, "rw", 2) == 0) { + /* ignore */ + } else if (strnicmp(data, "ro", 2) == 0) { + /* ignore */ } else if (strnicmp(data, "noblocksend", 11) == 0) { vol->noblocksnd = 1; } else if (strnicmp(data, "noautotune", 10) == 0) { -- cgit v1.2.3 From 2b121bc262fa03c94e653b2d44356c2f86c1bcdc Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Thu, 25 Jun 2009 13:25:36 +0200 Subject: eeepc-laptop: Register as a pci-hotplug device The eee contains a logically (but not physically) hotpluggable PCIe slot. Currently this is handled by adding or removing the PCI device in response to rfkill events, but if a user has forced pciehp to bind to it (with the force=1 argument) then both drivers will try to handle the event and hilarity (in the form of oopses) will ensue. This can be avoided by having eee-laptop register the slot as a hotplug slot. Only one of pciehp and eee-laptop will successfully register this, avoiding the problem. Signed-off-by: Matthew Garrett Signed-off-by: Corentin Chary Tested-by: Darren Salt Signed-off-by: Randy Dunlap Signed-off-by: Len Brown --- drivers/platform/x86/Kconfig | 2 + drivers/platform/x86/eeepc-laptop.c | 87 +++++++++++++++++++++++++++++++++++++ 2 files changed, 89 insertions(+) diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 7232fe7104a..fee6a4022bc 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -357,6 +357,8 @@ config EEEPC_LAPTOP depends on RFKILL || RFKILL = n select BACKLIGHT_CLASS_DEVICE select HWMON + select HOTPLUG + select HOTPLUG_PCI if PCI ---help--- This driver supports the Fn-Fx keys on Eee PC laptops. diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 4207b26ff99..c0b203ca29f 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -31,6 +31,7 @@ #include #include #include +#include #define EEEPC_LAPTOP_VERSION "0.1" @@ -143,6 +144,7 @@ struct eeepc_hotk { u16 *keycode_map; struct rfkill *eeepc_wlan_rfkill; struct rfkill *eeepc_bluetooth_rfkill; + struct hotplug_slot *hotplug_slot; }; /* The actual device the driver binds to */ @@ -213,6 +215,15 @@ static struct acpi_driver eeepc_hotk_driver = { }, }; +/* PCI hotplug ops */ +static int eeepc_get_adapter_status(struct hotplug_slot *slot, u8 *value); + +static struct hotplug_slot_ops eeepc_hotplug_slot_ops = { + .owner = THIS_MODULE, + .get_adapter_status = eeepc_get_adapter_status, + .get_power_status = eeepc_get_adapter_status, +}; + /* The backlight device /sys/class/backlight */ static struct backlight_device *eeepc_backlight_device; @@ -612,6 +623,19 @@ static int notify_brn(void) return -1; } +static int eeepc_get_adapter_status(struct hotplug_slot *hotplug_slot, + u8 *value) +{ + int val = get_acpi(CM_ASL_WLAN); + + if (val == 1 || val == 0) + *value = val; + else + return -EINVAL; + + return 0; +} + static void eeepc_rfkill_hotplug(void) { struct pci_dev *dev; @@ -744,6 +768,54 @@ static void eeepc_unregister_rfkill_notifier(char *node) } } +static void eeepc_cleanup_pci_hotplug(struct hotplug_slot *hotplug_slot) +{ + kfree(hotplug_slot->info); + kfree(hotplug_slot); +} + +static int eeepc_setup_pci_hotplug(void) +{ + int ret = -ENOMEM; + struct pci_bus *bus = pci_find_bus(0, 1); + + if (!bus) { + printk(EEEPC_ERR "Unable to find wifi PCI bus\n"); + return -ENODEV; + } + + ehotk->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL); + if (!ehotk->hotplug_slot) + goto error_slot; + + ehotk->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info), + GFP_KERNEL); + if (!ehotk->hotplug_slot->info) + goto error_info; + + ehotk->hotplug_slot->private = ehotk; + ehotk->hotplug_slot->release = &eeepc_cleanup_pci_hotplug; + ehotk->hotplug_slot->ops = &eeepc_hotplug_slot_ops; + eeepc_get_adapter_status(ehotk->hotplug_slot, + &ehotk->hotplug_slot->info->adapter_status); + + ret = pci_hp_register(ehotk->hotplug_slot, bus, 0, "eeepc-wifi"); + if (ret) { + printk(EEEPC_ERR "Unable to register hotplug slot - %d\n", ret); + goto error_register; + } + + return 0; + +error_register: + kfree(ehotk->hotplug_slot->info); +error_info: + kfree(ehotk->hotplug_slot); + ehotk->hotplug_slot = NULL; +error_slot: + return ret; +} + static int eeepc_hotk_add(struct acpi_device *device) { int result; @@ -802,8 +874,21 @@ static int eeepc_hotk_add(struct acpi_device *device) goto bluetooth_fail; } + result = eeepc_setup_pci_hotplug(); + /* + * If we get -EBUSY then something else is handling the PCI hotplug - + * don't fail in this case + */ + if (result == -EBUSY) + return 0; + else if (result) + goto pci_fail; + return 0; + pci_fail: + if (ehotk->eeepc_bluetooth_rfkill) + rfkill_unregister(ehotk->eeepc_bluetooth_rfkill); bluetooth_fail: rfkill_destroy(ehotk->eeepc_bluetooth_rfkill); rfkill_unregister(ehotk->eeepc_wlan_rfkill); @@ -825,6 +910,8 @@ static int eeepc_hotk_remove(struct acpi_device *device, int type) eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P6"); eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P7"); + if (ehotk->hotplug_slot) + pci_hp_deregister(ehotk->hotplug_slot); kfree(ehotk); return 0; -- cgit v1.2.3 From 19b532892834b7f1c04b2940ac73177dc566fed5 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Thu, 25 Jun 2009 13:25:37 +0200 Subject: eeepc-laptop.c: use pr_fmt and pr_ Convert the unusual printk(EEEPC_ uses to the more standard pr_fmt and pr_(. Signed-off-by: Joe Perches Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 55 +++++++++++++++---------------------- 1 file changed, 22 insertions(+), 33 deletions(-) diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index c0b203ca29f..d14f7149cb1 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -16,6 +16,8 @@ * GNU General Public License for more details. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include #include #include @@ -41,11 +43,6 @@ #define EEEPC_HOTK_DEVICE_NAME "Hotkey" #define EEEPC_HOTK_HID "ASUS010" -#define EEEPC_LOG EEEPC_HOTK_FILE ": " -#define EEEPC_ERR KERN_ERR EEEPC_LOG -#define EEEPC_WARNING KERN_WARNING EEEPC_LOG -#define EEEPC_NOTICE KERN_NOTICE EEEPC_LOG -#define EEEPC_INFO KERN_INFO EEEPC_LOG /* * Definitions for Asus EeePC @@ -285,7 +282,7 @@ static int set_acpi(int cm, int value) if (method == NULL) return -ENODEV; if (write_acpi_int(ehotk->handle, method, value, NULL)) - printk(EEEPC_WARNING "Error writing %s\n", method); + pr_warning("Error writing %s\n", method); } return 0; } @@ -298,7 +295,7 @@ static int get_acpi(int cm) if (method == NULL) return -ENODEV; if (read_acpi_int(ehotk->handle, method, &value)) - printk(EEEPC_WARNING "Error reading %s\n", method); + pr_warning("Error reading %s\n", method); } return value; } @@ -562,26 +559,23 @@ static int eeepc_hotk_check(void) if (ehotk->device->status.present) { if (write_acpi_int(ehotk->handle, "INIT", ehotk->init_flag, &buffer)) { - printk(EEEPC_ERR "Hotkey initialization failed\n"); + pr_err("Hotkey initialization failed\n"); return -ENODEV; } else { - printk(EEEPC_NOTICE "Hotkey init flags 0x%x\n", - ehotk->init_flag); + pr_notice("Hotkey init flags 0x%x\n", ehotk->init_flag); } /* get control methods supported */ if (read_acpi_int(ehotk->handle, "CMSG" , &ehotk->cm_supported)) { - printk(EEEPC_ERR - "Get control methods supported failed\n"); + pr_err("Get control methods supported failed\n"); return -ENODEV; } else { - printk(EEEPC_INFO - "Get control methods supported: 0x%x\n", - ehotk->cm_supported); + pr_info("Get control methods supported: 0x%x\n", + ehotk->cm_supported); } ehotk->inputdev = input_allocate_device(); if (!ehotk->inputdev) { - printk(EEEPC_INFO "Unable to allocate input device\n"); + pr_info("Unable to allocate input device\n"); return 0; } ehotk->inputdev->name = "Asus EeePC extra buttons"; @@ -600,12 +594,12 @@ static int eeepc_hotk_check(void) } result = input_register_device(ehotk->inputdev); if (result) { - printk(EEEPC_INFO "Unable to register input device\n"); + pr_info("Unable to register input device\n"); input_free_device(ehotk->inputdev); return 0; } } else { - printk(EEEPC_ERR "Hotkey device not present, aborting\n"); + pr_err("Hotkey device not present, aborting\n"); return -EINVAL; } return 0; @@ -643,7 +637,7 @@ static void eeepc_rfkill_hotplug(void) bool blocked; if (!bus) { - printk(EEEPC_WARNING "Unable to find PCI bus 1?\n"); + pr_warning("Unable to find PCI bus 1?\n"); return; } @@ -659,7 +653,7 @@ static void eeepc_rfkill_hotplug(void) if (dev) { pci_bus_assign_resources(bus); if (pci_bus_add_device(dev)) - printk(EEEPC_ERR "Unable to hotplug wifi\n"); + pr_err("Unable to hotplug wifi\n"); } } else { dev = pci_get_slot(bus, 0); @@ -742,8 +736,7 @@ static int eeepc_register_rfkill_notifier(char *node) eeepc_rfkill_notify, NULL); if (ACPI_FAILURE(status)) - printk(EEEPC_WARNING - "Failed to register notify on %s\n", node); + pr_warning("Failed to register notify on %s\n", node); } else return -ENODEV; @@ -762,8 +755,7 @@ static void eeepc_unregister_rfkill_notifier(char *node) ACPI_SYSTEM_NOTIFY, eeepc_rfkill_notify); if (ACPI_FAILURE(status)) - printk(EEEPC_ERR - "Error removing rfkill notify handler %s\n", + pr_err("Error removing rfkill notify handler %s\n", node); } } @@ -780,7 +772,7 @@ static int eeepc_setup_pci_hotplug(void) struct pci_bus *bus = pci_find_bus(0, 1); if (!bus) { - printk(EEEPC_ERR "Unable to find wifi PCI bus\n"); + pr_err("Unable to find wifi PCI bus\n"); return -ENODEV; } @@ -801,7 +793,7 @@ static int eeepc_setup_pci_hotplug(void) ret = pci_hp_register(ehotk->hotplug_slot, bus, 0, "eeepc-wifi"); if (ret) { - printk(EEEPC_ERR "Unable to register hotplug slot - %d\n", ret); + pr_err("Unable to register hotplug slot - %d\n", ret); goto error_register; } @@ -822,7 +814,7 @@ static int eeepc_hotk_add(struct acpi_device *device) if (!device) return -EINVAL; - printk(EEEPC_NOTICE EEEPC_HOTK_NAME "\n"); + pr_notice(EEEPC_HOTK_NAME "\n"); ehotk = kzalloc(sizeof(struct eeepc_hotk), GFP_KERNEL); if (!ehotk) return -ENOMEM; @@ -1105,8 +1097,7 @@ static int eeepc_backlight_init(struct device *dev) bd = backlight_device_register(EEEPC_HOTK_FILE, dev, NULL, &eeepcbl_ops); if (IS_ERR(bd)) { - printk(EEEPC_ERR - "Could not register eeepc backlight device\n"); + pr_err("Could not register eeepc backlight device\n"); eeepc_backlight_device = NULL; return PTR_ERR(bd); } @@ -1125,8 +1116,7 @@ static int eeepc_hwmon_init(struct device *dev) hwmon = hwmon_device_register(dev); if (IS_ERR(hwmon)) { - printk(EEEPC_ERR - "Could not register eeepc hwmon device\n"); + pr_err("Could not register eeepc hwmon device\n"); eeepc_hwmon_device = NULL; return PTR_ERR(hwmon); } @@ -1159,8 +1149,7 @@ static int __init eeepc_laptop_init(void) if (result) goto fail_backlight; } else - printk(EEEPC_INFO "Backlight controlled by ACPI video " - "driver\n"); + pr_info("Backlight controlled by ACPI video driver\n"); result = eeepc_hwmon_init(dev); if (result) -- cgit v1.2.3 From 7de39389d8f61aa517ce2a8b4d925acc62696ae5 Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Thu, 25 Jun 2009 13:25:38 +0200 Subject: eeepc-laptop: rfkill refactoring Refactor rfkill code, because we'll add another rfkill for wwan3g later. Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 160 +++++++++++++++++++----------------- 1 file changed, 84 insertions(+), 76 deletions(-) diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index d14f7149cb1..e46981a5f20 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -139,8 +139,8 @@ struct eeepc_hotk { u16 event_count[128]; /* count for each event */ struct input_dev *inputdev; u16 *keycode_map; - struct rfkill *eeepc_wlan_rfkill; - struct rfkill *eeepc_bluetooth_rfkill; + struct rfkill *wlan_rfkill; + struct rfkill *bluetooth_rfkill; struct hotplug_slot *hotplug_slot; }; @@ -663,7 +663,7 @@ static void eeepc_rfkill_hotplug(void) } } - rfkill_set_sw_state(ehotk->eeepc_wlan_rfkill, blocked); + rfkill_set_sw_state(ehotk->wlan_rfkill, blocked); } static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data) @@ -828,66 +828,8 @@ static int eeepc_hotk_add(struct acpi_device *device) if (result) goto ehotk_fail; - eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P6"); - eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P7"); - - if (get_acpi(CM_ASL_WLAN) != -1) { - ehotk->eeepc_wlan_rfkill = rfkill_alloc("eeepc-wlan", - &device->dev, - RFKILL_TYPE_WLAN, - &eeepc_rfkill_ops, - (void *)CM_ASL_WLAN); - - if (!ehotk->eeepc_wlan_rfkill) - goto wlan_fail; - - rfkill_init_sw_state(ehotk->eeepc_wlan_rfkill, - get_acpi(CM_ASL_WLAN) != 1); - result = rfkill_register(ehotk->eeepc_wlan_rfkill); - if (result) - goto wlan_fail; - } - - if (get_acpi(CM_ASL_BLUETOOTH) != -1) { - ehotk->eeepc_bluetooth_rfkill = - rfkill_alloc("eeepc-bluetooth", - &device->dev, - RFKILL_TYPE_BLUETOOTH, - &eeepc_rfkill_ops, - (void *)CM_ASL_BLUETOOTH); - - if (!ehotk->eeepc_bluetooth_rfkill) - goto bluetooth_fail; - - rfkill_init_sw_state(ehotk->eeepc_bluetooth_rfkill, - get_acpi(CM_ASL_BLUETOOTH) != 1); - result = rfkill_register(ehotk->eeepc_bluetooth_rfkill); - if (result) - goto bluetooth_fail; - } - - result = eeepc_setup_pci_hotplug(); - /* - * If we get -EBUSY then something else is handling the PCI hotplug - - * don't fail in this case - */ - if (result == -EBUSY) - return 0; - else if (result) - goto pci_fail; - return 0; - pci_fail: - if (ehotk->eeepc_bluetooth_rfkill) - rfkill_unregister(ehotk->eeepc_bluetooth_rfkill); - bluetooth_fail: - rfkill_destroy(ehotk->eeepc_bluetooth_rfkill); - rfkill_unregister(ehotk->eeepc_wlan_rfkill); - wlan_fail: - rfkill_destroy(ehotk->eeepc_wlan_rfkill); - eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P6"); - eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P7"); ehotk_fail: kfree(ehotk); ehotk = NULL; @@ -900,18 +842,13 @@ static int eeepc_hotk_remove(struct acpi_device *device, int type) if (!device || !acpi_driver_data(device)) return -EINVAL; - eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P6"); - eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P7"); - if (ehotk->hotplug_slot) - pci_hp_deregister(ehotk->hotplug_slot); - kfree(ehotk); return 0; } static int eeepc_hotk_resume(struct acpi_device *device) { - if (ehotk->eeepc_wlan_rfkill) { + if (ehotk->wlan_rfkill) { bool wlan; /* Workaround - it seems that _PTS disables the wireless @@ -923,14 +860,13 @@ static int eeepc_hotk_resume(struct acpi_device *device) wlan = get_acpi(CM_ASL_WLAN); set_acpi(CM_ASL_WLAN, wlan); - rfkill_set_sw_state(ehotk->eeepc_wlan_rfkill, - wlan != 1); + rfkill_set_sw_state(ehotk->wlan_rfkill, wlan != 1); eeepc_rfkill_hotplug(); } - if (ehotk->eeepc_bluetooth_rfkill) - rfkill_set_sw_state(ehotk->eeepc_bluetooth_rfkill, + if (ehotk->bluetooth_rfkill) + rfkill_set_sw_state(ehotk->bluetooth_rfkill, get_acpi(CM_ASL_BLUETOOTH) != 1); return 0; @@ -1052,10 +988,14 @@ static void eeepc_backlight_exit(void) static void eeepc_rfkill_exit(void) { - if (ehotk->eeepc_wlan_rfkill) - rfkill_unregister(ehotk->eeepc_wlan_rfkill); - if (ehotk->eeepc_bluetooth_rfkill) - rfkill_unregister(ehotk->eeepc_bluetooth_rfkill); + eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P6"); + eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P7"); + if (ehotk->wlan_rfkill) + rfkill_unregister(ehotk->wlan_rfkill); + if (ehotk->bluetooth_rfkill) + rfkill_unregister(ehotk->bluetooth_rfkill); + if (ehotk->hotplug_slot) + pci_hp_deregister(ehotk->hotplug_slot); } static void eeepc_input_exit(void) @@ -1090,6 +1030,67 @@ static void __exit eeepc_laptop_exit(void) platform_driver_unregister(&platform_driver); } +static int eeepc_new_rfkill(struct rfkill **rfkill, + const char *name, struct device *dev, + enum rfkill_type type, int cm) +{ + int result; + + if (get_acpi(cm) == -1) + return -ENODEV; + + *rfkill = rfkill_alloc(name, dev, type, + &eeepc_rfkill_ops, (void *)(unsigned long)cm); + + if (!*rfkill) + return -EINVAL; + + rfkill_init_sw_state(*rfkill, get_acpi(cm) != 1); + result = rfkill_register(*rfkill); + if (result) { + rfkill_destroy(*rfkill); + *rfkill = NULL; + return result; + } + return 0; +} + + +static int eeepc_rfkill_init(struct device *dev) +{ + int result = 0; + + eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P6"); + eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P7"); + + result = eeepc_new_rfkill(&ehotk->wlan_rfkill, + "eeepc-wlan", dev, + RFKILL_TYPE_WLAN, CM_ASL_WLAN); + + if (result && result != -ENODEV) + goto exit; + + result = eeepc_new_rfkill(&ehotk->bluetooth_rfkill, + "eeepc-bluetooth", dev, + RFKILL_TYPE_BLUETOOTH, CM_ASL_BLUETOOTH); + + if (result && result != -ENODEV) + goto exit; + + result = eeepc_setup_pci_hotplug(); + /* + * If we get -EBUSY then something else is handling the PCI hotplug - + * don't fail in this case + */ + if (result == -EBUSY) + result = 0; + +exit: + if (result && result != -ENODEV) + eeepc_rfkill_exit(); + return result; +} + static int eeepc_backlight_init(struct device *dev) { struct backlight_device *bd; @@ -1173,7 +1174,15 @@ static int __init eeepc_laptop_init(void) &platform_attribute_group); if (result) goto fail_sysfs; + + result = eeepc_rfkill_init(dev); + if (result) + goto fail_rfkill; + return 0; +fail_rfkill: + sysfs_remove_group(&platform_device->dev.kobj, + &platform_attribute_group); fail_sysfs: platform_device_del(platform_device); fail_platform_device2: @@ -1186,7 +1195,6 @@ fail_hwmon: eeepc_backlight_exit(); fail_backlight: eeepc_input_exit(); - eeepc_rfkill_exit(); return result; } -- cgit v1.2.3 From 1ddec2f9435e77b4d3f50eced68c4c942f2bcd4b Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Thu, 25 Jun 2009 13:25:39 +0200 Subject: eeepc-laptop: right parent device Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 34 ++++++++++++++++++---------------- 1 file changed, 18 insertions(+), 16 deletions(-) diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index e46981a5f20..5b102c2f66a 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -1143,18 +1143,6 @@ static int __init eeepc_laptop_init(void) acpi_bus_unregister_driver(&eeepc_hotk_driver); return -ENODEV; } - dev = acpi_get_physical_device(ehotk->device->handle); - - if (!acpi_video_backlight_support()) { - result = eeepc_backlight_init(dev); - if (result) - goto fail_backlight; - } else - pr_info("Backlight controlled by ACPI video driver\n"); - - result = eeepc_hwmon_init(dev); - if (result) - goto fail_hwmon; eeepc_enable_camera(); @@ -1175,12 +1163,30 @@ static int __init eeepc_laptop_init(void) if (result) goto fail_sysfs; + dev = &platform_device->dev; + + if (!acpi_video_backlight_support()) { + result = eeepc_backlight_init(dev); + if (result) + goto fail_backlight; + } else + pr_info("Backlight controlled by ACPI video " + "driver\n"); + + result = eeepc_hwmon_init(dev); + if (result) + goto fail_hwmon; + result = eeepc_rfkill_init(dev); if (result) goto fail_rfkill; return 0; fail_rfkill: + eeepc_hwmon_exit(); +fail_hwmon: + eeepc_backlight_exit(); +fail_backlight: sysfs_remove_group(&platform_device->dev.kobj, &platform_attribute_group); fail_sysfs: @@ -1190,10 +1196,6 @@ fail_platform_device2: fail_platform_device1: platform_driver_unregister(&platform_driver); fail_platform_driver: - eeepc_hwmon_exit(); -fail_hwmon: - eeepc_backlight_exit(); -fail_backlight: eeepc_input_exit(); return result; } -- cgit v1.2.3 From f36509e7248631671d02f48d1a88f56cdeb54ed8 Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Thu, 25 Jun 2009 13:25:40 +0200 Subject: eeepc-laptop: makes get_acpi() returns -ENODEV If there is there is no getter defined, get_acpi() will return -ENODEV. Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 5b102c2f66a..19cc9ae7db5 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -289,7 +289,7 @@ static int set_acpi(int cm, int value) static int get_acpi(int cm) { - int value = -1; + int value = -ENODEV; if ((ehotk->cm_supported & (0x1 << cm))) { const char *method = cm_getv[cm]; if (method == NULL) @@ -367,13 +367,19 @@ static ssize_t store_sys_acpi(int cm, const char *buf, size_t count) rv = parse_arg(buf, count, &value); if (rv > 0) - set_acpi(cm, value); + value = set_acpi(cm, value); + if (value < 0) + return value; return rv; } static ssize_t show_sys_acpi(int cm, char *buf) { - return sprintf(buf, "%d\n", get_acpi(cm)); + int value = get_acpi(cm); + + if (value < 0) + return value; + return sprintf(buf, "%d\n", value); } #define EEEPC_CREATE_DEVICE_ATTR(_name, _cm) \ @@ -1036,8 +1042,9 @@ static int eeepc_new_rfkill(struct rfkill **rfkill, { int result; - if (get_acpi(cm) == -1) - return -ENODEV; + result = get_acpi(cm); + if (result < 0) + return result; *rfkill = rfkill_alloc(name, dev, type, &eeepc_rfkill_ops, (void *)(unsigned long)cm); -- cgit v1.2.3 From dbfa3ba90dfe353a56e107cff5bce9fb7976f06f Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Thu, 25 Jun 2009 13:25:41 +0200 Subject: eeepc-laptop: get the right value for CMSG CMSG is an ACPI method used to find features available on an Eee PC. But some features are never repported, even if present. If the getter of a feature is present, this patch will set the corresponding bit in cmsg. Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 19cc9ae7db5..f5d8473ea66 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -553,6 +553,28 @@ static int eeepc_setkeycode(struct input_dev *dev, int scancode, int keycode) return -EINVAL; } +static void cmsg_quirk(int cm, const char *name) +{ + int dummy; + + /* Some BIOSes do not report cm although it is avaliable. + Check if cm_getv[cm] works and, if yes, assume cm should be set. */ + if (!(ehotk->cm_supported & (1 << cm)) + && !read_acpi_int(ehotk->handle, cm_getv[cm], &dummy)) { + pr_info("%s (%x) not reported by BIOS," + " enabling anyway\n", name, 1 << cm); + ehotk->cm_supported |= 1 << cm; + } +} + +static void cmsg_quirks(void) +{ + cmsg_quirk(CM_ASL_LID, "LID"); + cmsg_quirk(CM_ASL_TYPE, "TYPE"); + cmsg_quirk(CM_ASL_PANELPOWER, "PANELPOWER"); + cmsg_quirk(CM_ASL_TPD, "TPD"); +} + static int eeepc_hotk_check(void) { const struct key_entry *key; @@ -576,6 +598,7 @@ static int eeepc_hotk_check(void) pr_err("Get control methods supported failed\n"); return -ENODEV; } else { + cmsg_quirks(); pr_info("Get control methods supported: 0x%x\n", ehotk->cm_supported); } -- cgit v1.2.3 From 3cd530b5aaffd27b231f9717730f2f6684c00bda Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Thu, 25 Jun 2009 13:25:42 +0200 Subject: eeepc-laptop: add rfkill support for the 3G modem in Eee PC 901 Go Signed-off-by: Janne Grunau Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index f5d8473ea66..ec560f16d72 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -141,6 +141,7 @@ struct eeepc_hotk { u16 *keycode_map; struct rfkill *wlan_rfkill; struct rfkill *bluetooth_rfkill; + struct rfkill *wwan3g_rfkill; struct hotplug_slot *hotplug_slot; }; @@ -1023,6 +1024,8 @@ static void eeepc_rfkill_exit(void) rfkill_unregister(ehotk->wlan_rfkill); if (ehotk->bluetooth_rfkill) rfkill_unregister(ehotk->bluetooth_rfkill); + if (ehotk->wwan3g_rfkill) + rfkill_unregister(ehotk->wwan3g_rfkill); if (ehotk->hotplug_slot) pci_hp_deregister(ehotk->hotplug_slot); } @@ -1107,6 +1110,13 @@ static int eeepc_rfkill_init(struct device *dev) if (result && result != -ENODEV) goto exit; + result = eeepc_new_rfkill(&ehotk->wwan3g_rfkill, + "eeepc-wwan3g", dev, + RFKILL_TYPE_WWAN, CM_ASL_3G); + + if (result && result != -ENODEV) + goto exit; + result = eeepc_setup_pci_hotplug(); /* * If we get -EBUSY then something else is handling the PCI hotplug - -- cgit v1.2.3 From 412af97838828bc6d035a1902c8974f944663da6 Mon Sep 17 00:00:00 2001 From: Troy Moure Date: Thu, 25 Jun 2009 17:05:35 -0600 Subject: ACPI: video: prevent NULL deref in acpi_get_pci_dev() ref: http://thread.gmane.org/gmane.linux.kernel/857228/focus=857468 When the ACPI video driver initializes, it does a namespace walk looking for for supported devices. When we find an appropriate handle, we walk up the ACPI tree looking for a PCI root bus, and then walk back down the PCI bus, assuming that every device inbetween is a P2P bridge. This assumption is not correct, and is reported broken on at least: Dell Latitude E6400 ThinkPad X61 Dell XPS M1330 Add a NULL deref check to prevent boot panics. Reported-by: Alessandro Suardi Signed-off-by: Troy Moure Signed-off-by: Alex Chiang Signed-off-by: Len Brown --- drivers/acpi/pci_root.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 8a5bf3b356f..55b5b90c2a4 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -395,7 +395,7 @@ struct pci_dev *acpi_get_pci_dev(acpi_handle handle) fn = adr & 0xffff; pdev = pci_get_slot(pbus, PCI_DEVFN(dev, fn)); - if (hnd == handle) + if (!pdev || hnd == handle) break; pbus = pdev->subordinate; -- cgit v1.2.3 From 6f0b1c6094b3e8eeeb13f8f16c1b2ef452a6f519 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Mon, 22 Jun 2009 23:13:48 +0000 Subject: powerpc: Swiotlb breaks pseries Turning on SWIOTLB selects or enables PPC_NEED_DMA_SYNC_OPS, which means we get the non empty versions of dma_sync_* in asm/dma-mapping.h On my pseries machine the dma_ops have no such routines and we die with a null pointer - this patch gets it booting, is there a more elegant way to do it? Signed-off-by: Michael Ellerman Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/dma-mapping.h | 24 ++++++++++++++++++------ 1 file changed, 18 insertions(+), 6 deletions(-) diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h index 3d9e887c3c0..b44aaabdd1a 100644 --- a/arch/powerpc/include/asm/dma-mapping.h +++ b/arch/powerpc/include/asm/dma-mapping.h @@ -309,7 +309,9 @@ static inline void dma_sync_single_for_cpu(struct device *dev, struct dma_mapping_ops *dma_ops = get_dma_ops(dev); BUG_ON(!dma_ops); - dma_ops->sync_single_range_for_cpu(dev, dma_handle, 0, + + if (dma_ops->sync_single_range_for_cpu) + dma_ops->sync_single_range_for_cpu(dev, dma_handle, 0, size, direction); } @@ -320,7 +322,9 @@ static inline void dma_sync_single_for_device(struct device *dev, struct dma_mapping_ops *dma_ops = get_dma_ops(dev); BUG_ON(!dma_ops); - dma_ops->sync_single_range_for_device(dev, dma_handle, + + if (dma_ops->sync_single_range_for_device) + dma_ops->sync_single_range_for_device(dev, dma_handle, 0, size, direction); } @@ -331,7 +335,9 @@ static inline void dma_sync_sg_for_cpu(struct device *dev, struct dma_mapping_ops *dma_ops = get_dma_ops(dev); BUG_ON(!dma_ops); - dma_ops->sync_sg_for_cpu(dev, sgl, nents, direction); + + if (dma_ops->sync_sg_for_cpu) + dma_ops->sync_sg_for_cpu(dev, sgl, nents, direction); } static inline void dma_sync_sg_for_device(struct device *dev, @@ -341,7 +347,9 @@ static inline void dma_sync_sg_for_device(struct device *dev, struct dma_mapping_ops *dma_ops = get_dma_ops(dev); BUG_ON(!dma_ops); - dma_ops->sync_sg_for_device(dev, sgl, nents, direction); + + if (dma_ops->sync_sg_for_device) + dma_ops->sync_sg_for_device(dev, sgl, nents, direction); } static inline void dma_sync_single_range_for_cpu(struct device *dev, @@ -351,7 +359,9 @@ static inline void dma_sync_single_range_for_cpu(struct device *dev, struct dma_mapping_ops *dma_ops = get_dma_ops(dev); BUG_ON(!dma_ops); - dma_ops->sync_single_range_for_cpu(dev, dma_handle, + + if (dma_ops->sync_single_range_for_cpu) + dma_ops->sync_single_range_for_cpu(dev, dma_handle, offset, size, direction); } @@ -362,7 +372,9 @@ static inline void dma_sync_single_range_for_device(struct device *dev, struct dma_mapping_ops *dma_ops = get_dma_ops(dev); BUG_ON(!dma_ops); - dma_ops->sync_single_range_for_device(dev, dma_handle, offset, + + if (dma_ops->sync_single_range_for_device) + dma_ops->sync_single_range_for_device(dev, dma_handle, offset, size, direction); } #else /* CONFIG_PPC_NEED_DMA_SYNC_OPS */ -- cgit v1.2.3 From 5a2642f620eb6e40792822fa0eafe23046fbb55e Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Mon, 22 Jun 2009 16:47:59 +0000 Subject: powerpc/mpic: Fix mapping of "DCR" based MPIC variants Commit 31207dab7d2e63795eb15823947bd2f7025b08e2 "Fix incorrect allocation of interrupt rev-map" introduced a regression crashing on boot on machines using a "DCR" based MPIC, such as the Cell blades. The reason is that the irq host data structure is initialized much later as a result of that patch, causing our calls to mpic_map() do be done before we have a host setup. Unfortunately, this breaks _mpic_map_dcr() which uses the mpic->irqhost to get to the device node. This fixes it by, instead, passing the device node explicitely to mpic_map(). Signed-off-by: Benjamin Herrenschmidt Acked-by: Akira Tsukamoto --- arch/powerpc/sysdev/mpic.c | 29 ++++++++++++++++------------- 1 file changed, 16 insertions(+), 13 deletions(-) diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index 9c3af504549..32a2e950f56 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c @@ -279,28 +279,29 @@ static void _mpic_map_mmio(struct mpic *mpic, phys_addr_t phys_addr, } #ifdef CONFIG_PPC_DCR -static void _mpic_map_dcr(struct mpic *mpic, struct mpic_reg_bank *rb, +static void _mpic_map_dcr(struct mpic *mpic, struct device_node *node, + struct mpic_reg_bank *rb, unsigned int offset, unsigned int size) { const u32 *dbasep; - dbasep = of_get_property(mpic->irqhost->of_node, "dcr-reg", NULL); + dbasep = of_get_property(node, "dcr-reg", NULL); - rb->dhost = dcr_map(mpic->irqhost->of_node, *dbasep + offset, size); + rb->dhost = dcr_map(node, *dbasep + offset, size); BUG_ON(!DCR_MAP_OK(rb->dhost)); } -static inline void mpic_map(struct mpic *mpic, phys_addr_t phys_addr, - struct mpic_reg_bank *rb, unsigned int offset, - unsigned int size) +static inline void mpic_map(struct mpic *mpic, struct device_node *node, + phys_addr_t phys_addr, struct mpic_reg_bank *rb, + unsigned int offset, unsigned int size) { if (mpic->flags & MPIC_USES_DCR) - _mpic_map_dcr(mpic, rb, offset, size); + _mpic_map_dcr(mpic, node, rb, offset, size); else _mpic_map_mmio(mpic, phys_addr, rb, offset, size); } #else /* CONFIG_PPC_DCR */ -#define mpic_map(m,p,b,o,s) _mpic_map_mmio(m,p,b,o,s) +#define mpic_map(m,n,p,b,o,s) _mpic_map_mmio(m,p,b,o,s) #endif /* !CONFIG_PPC_DCR */ @@ -1152,8 +1153,8 @@ struct mpic * __init mpic_alloc(struct device_node *node, } /* Map the global registers */ - mpic_map(mpic, paddr, &mpic->gregs, MPIC_INFO(GREG_BASE), 0x1000); - mpic_map(mpic, paddr, &mpic->tmregs, MPIC_INFO(TIMER_BASE), 0x1000); + mpic_map(mpic, node, paddr, &mpic->gregs, MPIC_INFO(GREG_BASE), 0x1000); + mpic_map(mpic, node, paddr, &mpic->tmregs, MPIC_INFO(TIMER_BASE), 0x1000); /* Reset */ if (flags & MPIC_WANTS_RESET) { @@ -1194,7 +1195,7 @@ struct mpic * __init mpic_alloc(struct device_node *node, /* Map the per-CPU registers */ for (i = 0; i < mpic->num_cpus; i++) { - mpic_map(mpic, paddr, &mpic->cpuregs[i], + mpic_map(mpic, node, paddr, &mpic->cpuregs[i], MPIC_INFO(CPU_BASE) + i * MPIC_INFO(CPU_STRIDE), 0x1000); } @@ -1202,7 +1203,7 @@ struct mpic * __init mpic_alloc(struct device_node *node, /* Initialize main ISU if none provided */ if (mpic->isu_size == 0) { mpic->isu_size = mpic->num_sources; - mpic_map(mpic, paddr, &mpic->isus[0], + mpic_map(mpic, node, paddr, &mpic->isus[0], MPIC_INFO(IRQ_BASE), MPIC_INFO(IRQ_STRIDE) * mpic->isu_size); } mpic->isu_shift = 1 + __ilog2(mpic->isu_size - 1); @@ -1256,8 +1257,10 @@ void __init mpic_assign_isu(struct mpic *mpic, unsigned int isu_num, BUG_ON(isu_num >= MPIC_MAX_ISU); - mpic_map(mpic, paddr, &mpic->isus[isu_num], 0, + mpic_map(mpic, mpic->irqhost->of_node, + paddr, &mpic->isus[isu_num], 0, MPIC_INFO(IRQ_STRIDE) * mpic->isu_size); + if ((isu_first + mpic->isu_size) > mpic->num_sources) mpic->num_sources = isu_first + mpic->isu_size; } -- cgit v1.2.3 From b810c6ec5c659c80b3641580b112db877a0f1f45 Mon Sep 17 00:00:00 2001 From: Jon Smirl Date: Sun, 21 Jun 2009 15:28:00 +0000 Subject: powerpc: Have git ignore generated files from dtc compile Have git ignore generated files from dtc compile Signed-off-by: Jon Smirl Acked-by: David Gibson Acked-by: Sean MacLennan Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/boot/.gitignore | 10 ++++++++++ scripts/dtc/.gitignore | 5 +++++ 2 files changed, 15 insertions(+) create mode 100644 scripts/dtc/.gitignore diff --git a/arch/powerpc/boot/.gitignore b/arch/powerpc/boot/.gitignore index 2f50acd11a6..3d80c3e9cf6 100644 --- a/arch/powerpc/boot/.gitignore +++ b/arch/powerpc/boot/.gitignore @@ -36,3 +36,13 @@ zImage.pseries zconf.h zlib.h zutil.h +fdt.c +fdt.h +fdt_ro.c +fdt_rw.c +fdt_strerror.c +fdt_sw.c +fdt_wip.c +libfdt.h +libfdt_internal.h + diff --git a/scripts/dtc/.gitignore b/scripts/dtc/.gitignore new file mode 100644 index 00000000000..095acb49a37 --- /dev/null +++ b/scripts/dtc/.gitignore @@ -0,0 +1,5 @@ +dtc +dtc-lexer.lex.c +dtc-parser.tab.c +dtc-parser.tab.h + -- cgit v1.2.3 From 3984114f056203d833251af85501721f7b00fd18 Mon Sep 17 00:00:00 2001 From: Sean MacLennan Date: Fri, 19 Jun 2009 19:43:59 +0000 Subject: powerpc/warp: Platform fix for i2c change A change to the i2c subsystem breaks the warp platform code. The patch is cleaner anyway, the old way was a bit crufty. For those with keen eyes, the gratuitous change in the string from PIKA to Warp is just so the logs look a bit nicer. The following two lines tend to be printed one after another. Warp POST OK Warp DTM thread running. Yeah, this will be the third patch to warp.c submitted in this release.... Cheers, Sean The i2c_client struct changed, breaking the code that looked for the ad7414 chip. Use the new of_find_i2c_device_by_node function added in 2.6.29. Signed-off-by: Sean MacLennan Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/platforms/44x/warp.c | 44 +++++++++++++-------------------------- 1 file changed, 14 insertions(+), 30 deletions(-) diff --git a/arch/powerpc/platforms/44x/warp.c b/arch/powerpc/platforms/44x/warp.c index 42e09a9f77e..0362c88f47d 100644 --- a/arch/powerpc/platforms/44x/warp.c +++ b/arch/powerpc/platforms/44x/warp.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include @@ -65,7 +66,6 @@ define_machine(warp) { static u32 post_info; -/* I am not sure this is the best place for this... */ static int __init warp_post_info(void) { struct device_node *np; @@ -194,9 +194,9 @@ static int pika_setup_leds(void) return 0; } -static void pika_setup_critical_temp(struct i2c_client *client) +static void pika_setup_critical_temp(struct device_node *np, + struct i2c_client *client) { - struct device_node *np; int irq, rc; /* Do this before enabling critical temp interrupt since we @@ -208,14 +208,7 @@ static void pika_setup_critical_temp(struct i2c_client *client) i2c_smbus_write_byte_data(client, 2, 65); /* Thigh */ i2c_smbus_write_byte_data(client, 3, 0); /* Tlow */ - np = of_find_compatible_node(NULL, NULL, "adi,ad7414"); - if (np == NULL) { - printk(KERN_ERR __FILE__ ": Unable to find ad7414\n"); - return; - } - irq = irq_of_parse_and_map(np, 0); - of_node_put(np); if (irq == NO_IRQ) { printk(KERN_ERR __FILE__ ": Unable to get ad7414 irq\n"); return; @@ -244,32 +237,24 @@ static inline void pika_dtm_check_fan(void __iomem *fpga) static int pika_dtm_thread(void __iomem *fpga) { - struct i2c_adapter *adap; + struct device_node *np; struct i2c_client *client; - /* We loop in case either driver was compiled as a module and - * has not been insmoded yet. - */ - while (!(adap = i2c_get_adapter(0))) { - set_current_state(TASK_INTERRUPTIBLE); - schedule_timeout(HZ); - } - - while (1) { - list_for_each_entry(client, &adap->clients, list) - if (client->addr == 0x4a) - goto found_it; + np = of_find_compatible_node(NULL, NULL, "adi,ad7414"); + if (np == NULL) + return -ENOENT; - set_current_state(TASK_INTERRUPTIBLE); - schedule_timeout(HZ); + client = of_find_i2c_device_by_node(np); + if (client == NULL) { + of_node_put(np); + return -ENOENT; } -found_it: - pika_setup_critical_temp(client); + pika_setup_critical_temp(np, client); - i2c_put_adapter(adap); + of_node_put(np); - printk(KERN_INFO "PIKA DTM thread running.\n"); + printk(KERN_INFO "Warp DTM thread running.\n"); while (!kthread_should_stop()) { int val; @@ -291,7 +276,6 @@ found_it: return 0; } - static int __init pika_dtm_start(void) { struct task_struct *dtm_thread; -- cgit v1.2.3 From 6bb2ae535f2eee0334802724a542701bd969d055 Mon Sep 17 00:00:00 2001 From: Gerhard Pircher Date: Fri, 19 Jun 2009 11:42:36 +0000 Subject: powerpc/amigaone: Limit ISA I/O range to 4k in the device tree The kernel reserves the I/O address space from 0x0 to 0xfff for legacy ISA devices. Change the ranges property for the PCI2ISA bridge to match the kernels behavior, even if the ranges property isn't used for now. Signed-off-by: Gerhard Pircher Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/boot/dts/amigaone.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/boot/dts/amigaone.dts b/arch/powerpc/boot/dts/amigaone.dts index 26549fca2ed..49ac36b16dd 100644 --- a/arch/powerpc/boot/dts/amigaone.dts +++ b/arch/powerpc/boot/dts/amigaone.dts @@ -70,8 +70,8 @@ devsel-speed = <0x00000001>; min-grant = <0>; max-latency = <0>; - /* First 64k for I/O at 0x0 on PCI mapped to 0x0 on ISA. */ - ranges = <0x00000001 0 0x01000000 0 0x00000000 0x00010000>; + /* First 4k for I/O at 0x0 on PCI mapped to 0x0 on ISA. */ + ranges = <0x00000001 0 0x01000000 0 0x00000000 0x00001000>; interrupt-parent = <&i8259>; #interrupt-cells = <2>; #address-cells = <2>; -- cgit v1.2.3 From 7ccbe504b5ee766d33211a507189a06f3079b29b Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 18 Jun 2009 23:30:07 +0000 Subject: powerpc/pmac: Fix issues with PowerMac "PowerSurge" SMP The old PowerSurge SMP (ie, dual or quad 604 machines) code has numerous issues in modern world. One is cpu_possible_map is set too late (the device-tree is bogus) so we fail to allocate the interrupt stacks and crash. Another problem is the fact the timebase is frozen by the bringup of the second CPU so the delays in the generic code will hang, we need to move some of the calling procedure to inside the powermac code. This makes it boot again for me Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/smp.c | 3 +- arch/powerpc/platforms/powermac/setup.c | 41 ++------ arch/powerpc/platforms/powermac/smp.c | 166 ++++++++++++++++++++------------ 3 files changed, 112 insertions(+), 98 deletions(-) diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 65484b2200b..0b47de07302 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -68,7 +68,8 @@ EXPORT_PER_CPU_SYMBOL(cpu_core_map); /* SMP operations for this machine */ struct smp_ops_t *smp_ops; -static volatile unsigned int cpu_callin_map[NR_CPUS]; +/* Can't be static due to PowerMac hackery */ +volatile unsigned int cpu_callin_map[NR_CPUS]; int smt_enabled_at_boot = 1; diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c index 86f69a4eb49..c2052265636 100644 --- a/arch/powerpc/platforms/powermac/setup.c +++ b/arch/powerpc/platforms/powermac/setup.c @@ -103,11 +103,6 @@ unsigned long smu_cmdbuf_abs; EXPORT_SYMBOL(smu_cmdbuf_abs); #endif -#ifdef CONFIG_SMP -extern struct smp_ops_t psurge_smp_ops; -extern struct smp_ops_t core99_smp_ops; -#endif /* CONFIG_SMP */ - static void pmac_show_cpuinfo(struct seq_file *m) { struct device_node *np; @@ -341,34 +336,6 @@ static void __init pmac_setup_arch(void) ROOT_DEV = DEFAULT_ROOT_DEVICE; #endif -#ifdef CONFIG_SMP - /* Check for Core99 */ - ic = of_find_node_by_name(NULL, "uni-n"); - if (!ic) - ic = of_find_node_by_name(NULL, "u3"); - if (!ic) - ic = of_find_node_by_name(NULL, "u4"); - if (ic) { - of_node_put(ic); - smp_ops = &core99_smp_ops; - } -#ifdef CONFIG_PPC32 - else { - /* - * We have to set bits in cpu_possible_map here since the - * secondary CPU(s) aren't in the device tree, and - * setup_per_cpu_areas only allocates per-cpu data for - * CPUs in the cpu_possible_map. - */ - int cpu; - - for (cpu = 1; cpu < 4 && cpu < NR_CPUS; ++cpu) - cpu_set(cpu, cpu_possible_map); - smp_ops = &psurge_smp_ops; - } -#endif -#endif /* CONFIG_SMP */ - #ifdef CONFIG_ADB if (strstr(cmd_line, "adb_sync")) { extern int __adb_probe_sync; @@ -512,6 +479,14 @@ static void __init pmac_init_early(void) #ifdef CONFIG_PPC64 iommu_init_early_dart(); #endif + + /* SMP Init has to be done early as we need to patch up + * cpu_possible_map before interrupt stacks are allocated + * or kaboom... + */ +#ifdef CONFIG_SMP + pmac_setup_smp(); +#endif } static int __init pmac_declare_of_platform_devices(void) diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c index cf1dbe75889..6d4da7b46b4 100644 --- a/arch/powerpc/platforms/powermac/smp.c +++ b/arch/powerpc/platforms/powermac/smp.c @@ -64,10 +64,11 @@ extern void __secondary_start_pmac_0(void); extern int pmac_pfunc_base_install(void); -#ifdef CONFIG_PPC32 +static void (*pmac_tb_freeze)(int freeze); +static u64 timebase; +static int tb_req; -/* Sync flag for HW tb sync */ -static volatile int sec_tb_reset = 0; +#ifdef CONFIG_PPC32 /* * Powersurge (old powermac SMP) support. @@ -294,6 +295,9 @@ static int __init smp_psurge_probe(void) psurge_quad_init(); /* All released cards using this HW design have 4 CPUs */ ncpus = 4; + /* No sure how timebase sync works on those, let's use SW */ + smp_ops->give_timebase = smp_generic_give_timebase; + smp_ops->take_timebase = smp_generic_take_timebase; } else { iounmap(quad_base); if ((in_8(hhead_base + HHEAD_CONFIG) & 0x02) == 0) { @@ -308,18 +312,15 @@ static int __init smp_psurge_probe(void) psurge_start = ioremap(PSURGE_START, 4); psurge_pri_intr = ioremap(PSURGE_PRI_INTR, 4); - /* - * This is necessary because OF doesn't know about the + /* This is necessary because OF doesn't know about the * secondary cpu(s), and thus there aren't nodes in the * device tree for them, and smp_setup_cpu_maps hasn't - * set their bits in cpu_possible_map and cpu_present_map. + * set their bits in cpu_present_map. */ if (ncpus > NR_CPUS) ncpus = NR_CPUS; - for (i = 1; i < ncpus ; ++i) { + for (i = 1; i < ncpus ; ++i) cpu_set(i, cpu_present_map); - set_hard_smp_processor_id(i, i); - } if (ppc_md.progress) ppc_md.progress("smp_psurge_probe - done", 0x352); @@ -329,8 +330,14 @@ static int __init smp_psurge_probe(void) static void __init smp_psurge_kick_cpu(int nr) { unsigned long start = __pa(__secondary_start_pmac_0) + nr * 8; - unsigned long a; - int i; + unsigned long a, flags; + int i, j; + + /* Defining this here is evil ... but I prefer hiding that + * crap to avoid giving people ideas that they can do the + * same. + */ + extern volatile unsigned int cpu_callin_map[NR_CPUS]; /* may need to flush here if secondary bats aren't setup */ for (a = KERNELBASE; a < KERNELBASE + 0x800000; a += 32) @@ -339,47 +346,52 @@ static void __init smp_psurge_kick_cpu(int nr) if (ppc_md.progress) ppc_md.progress("smp_psurge_kick_cpu", 0x353); + /* This is going to freeze the timeebase, we disable interrupts */ + local_irq_save(flags); + out_be32(psurge_start, start); mb(); psurge_set_ipi(nr); + /* * We can't use udelay here because the timebase is now frozen. */ for (i = 0; i < 2000; ++i) - barrier(); + asm volatile("nop" : : : "memory"); psurge_clr_ipi(nr); - if (ppc_md.progress) ppc_md.progress("smp_psurge_kick_cpu - done", 0x354); -} - -/* - * With the dual-cpu powersurge board, the decrementers and timebases - * of both cpus are frozen after the secondary cpu is started up, - * until we give the secondary cpu another interrupt. This routine - * uses this to get the timebases synchronized. - * -- paulus. - */ -static void __init psurge_dual_sync_tb(int cpu_nr) -{ - int t; - - set_dec(tb_ticks_per_jiffy); - /* XXX fixme */ - set_tb(0, 0); - - if (cpu_nr > 0) { + /* + * Also, because the timebase is frozen, we must not return to the + * caller which will try to do udelay's etc... Instead, we wait -here- + * for the CPU to callin. + */ + for (i = 0; i < 100000 && !cpu_callin_map[nr]; ++i) { + for (j = 1; j < 10000; j++) + asm volatile("nop" : : : "memory"); + asm volatile("sync" : : : "memory"); + } + if (!cpu_callin_map[nr]) + goto stuck; + + /* And we do the TB sync here too for standard dual CPU cards */ + if (psurge_type == PSURGE_DUAL) { + while(!tb_req) + barrier(); + tb_req = 0; + mb(); + timebase = get_tb(); + mb(); + while (timebase) + barrier(); mb(); - sec_tb_reset = 1; - return; } + stuck: + /* now interrupt the secondary, restarting both TBs */ + if (psurge_type == PSURGE_DUAL) + psurge_set_ipi(1); - /* wait for the secondary to have reset its TB before proceeding */ - for (t = 10000000; t > 0 && !sec_tb_reset; --t) - ; - - /* now interrupt the secondary, starting both TBs */ - psurge_set_ipi(1); + if (ppc_md.progress) ppc_md.progress("smp_psurge_kick_cpu - done", 0x354); } static struct irqaction psurge_irqaction = { @@ -390,36 +402,35 @@ static struct irqaction psurge_irqaction = { static void __init smp_psurge_setup_cpu(int cpu_nr) { + if (cpu_nr != 0) + return; - if (cpu_nr == 0) { - /* If we failed to start the second CPU, we should still - * send it an IPI to start the timebase & DEC or we might - * have them stuck. - */ - if (num_online_cpus() < 2) { - if (psurge_type == PSURGE_DUAL) - psurge_set_ipi(1); - return; - } - /* reset the entry point so if we get another intr we won't - * try to startup again */ - out_be32(psurge_start, 0x100); - if (setup_irq(30, &psurge_irqaction)) - printk(KERN_ERR "Couldn't get primary IPI interrupt"); - } - - if (psurge_type == PSURGE_DUAL) - psurge_dual_sync_tb(cpu_nr); + /* reset the entry point so if we get another intr we won't + * try to startup again */ + out_be32(psurge_start, 0x100); + if (setup_irq(30, &psurge_irqaction)) + printk(KERN_ERR "Couldn't get primary IPI interrupt"); } void __init smp_psurge_take_timebase(void) { - /* Dummy implementation */ + if (psurge_type != PSURGE_DUAL) + return; + + tb_req = 1; + mb(); + while (!timebase) + barrier(); + mb(); + set_tb(timebase >> 32, timebase & 0xffffffff); + timebase = 0; + mb(); + set_dec(tb_ticks_per_jiffy/2); } void __init smp_psurge_give_timebase(void) { - /* Dummy implementation */ + /* Nothing to do here */ } /* PowerSurge-style Macs */ @@ -437,9 +448,6 @@ struct smp_ops_t psurge_smp_ops = { * Core 99 and later support */ -static void (*pmac_tb_freeze)(int freeze); -static u64 timebase; -static int tb_req; static void smp_core99_give_timebase(void) { @@ -478,7 +486,6 @@ static void __devinit smp_core99_take_timebase(void) set_tb(timebase >> 32, timebase & 0xffffffff); timebase = 0; mb(); - set_dec(tb_ticks_per_jiffy/2); local_irq_restore(flags); } @@ -920,3 +927,34 @@ struct smp_ops_t core99_smp_ops = { # endif #endif }; + +void __init pmac_setup_smp(void) +{ + struct device_node *np; + + /* Check for Core99 */ + np = of_find_node_by_name(NULL, "uni-n"); + if (!np) + np = of_find_node_by_name(NULL, "u3"); + if (!np) + np = of_find_node_by_name(NULL, "u4"); + if (np) { + of_node_put(np); + smp_ops = &core99_smp_ops; + } +#ifdef CONFIG_PPC32 + else { + /* We have to set bits in cpu_possible_map here since the + * secondary CPU(s) aren't in the device tree. Various + * things won't be initialized for CPUs not in the possible + * map, so we really need to fix it up here. + */ + int cpu; + + for (cpu = 1; cpu < 4 && cpu < NR_CPUS; ++cpu) + cpu_set(cpu, cpu_possible_map); + smp_ops = &psurge_smp_ops; + } +#endif /* CONFIG_PPC32 */ +} + -- cgit v1.2.3 From a2367194183d6ab6b05e5d7d9b40db6ba48afc06 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Thu, 18 Jun 2009 22:29:55 +0000 Subject: powerpc: Fix output from show_regs For some reason we've had an explicit KERN_INFO for GPR dumps. With recent changes we get output like: <6>GPR00: 00000000 ef855eb0 ef858000 00000001 000000d0 f1000000 ffbc8000 ffffffff The KERN_INFO is causing the <6>. Don't see any reason to keep it around. Signed-off-by: Kumar Gala Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/process.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 3e7135bbe40..892a9f2e6d7 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -528,7 +528,7 @@ void show_regs(struct pt_regs * regs) for (i = 0; i < 32; i++) { if ((i % REGS_PER_LINE) == 0) - printk("\n" KERN_INFO "GPR%02d: ", i); + printk("\nGPR%02d: ", i); printk(REG " ", regs->gpr[i]); if (i == LAST_VOLATILE && !FULL_REGS(regs)) break; -- cgit v1.2.3 From 85355bb272db31a3f2dd99d547eef794805e1319 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Thu, 18 Jun 2009 22:01:20 +0000 Subject: powerpc: Fix mpic alloc warning Since we can use kmalloc earlier we are getting the following since the mpic_alloc() code calls alloc_bootmem(). Move to using kzalloc() to remove the warning. ------------[ cut here ]------------ Badness at c0583248 [verbose debug info unavailable] NIP: c0583248 LR: c0583210 CTR: 00000004 REGS: c0741de0 TRAP: 0700 Not tainted (2.6.30-06736-g12a31df) MSR: 00021000 CR: 22024024 XER: 00000000 TASK = c070d3b8[0] 'swapper' THREAD: c0740000 CPU: 0 <6>GPR00: 00000001 c0741e90 c070d3b8 00000001 00000210 00000020 3fffffff 00000000 <6>GPR08: 00000000 c0c85700 c04f8c40 0000002d 22044022 1004a388 7ffd9400 00000000 <6>GPR16: 00000000 7ffcd100 7ffcd100 7ffcd100 c04f8c40 00000000 c059f62c c075a0c0 <6>GPR24: c059f648 00000000 0000000f 00000210 00000020 00000000 3fffffff 00000210 NIP [c0583248] alloc_arch_preferred_bootmem+0x50/0x80 LR [c0583210] alloc_arch_preferred_bootmem+0x18/0x80 Call Trace: [c0741e90] [c07343b0] devtree_lock+0x0/0x24 (unreliable) [c0741ea0] [c0583b14] ___alloc_bootmem_nopanic+0x54/0x108 [c0741ee0] [c0583e18] ___alloc_bootmem+0x18/0x50 [c0741ef0] [c057b9cc] mpic_alloc+0x48/0x710 [c0741f40] [c057ecf4] mpc85xx_ds_pic_init+0x190/0x1b8 [c0741f90] [c057633c] init_IRQ+0x24/0x34 [c0741fa0] [c05738b8] start_kernel+0x260/0x3dc [c0741ff0] [c00003c8] skpinv+0x2e0/0x31c Instruction dump: 409e001c 7c030378 80010014 83e1000c 38210010 7c0803a6 4e800020 3d20c0c8 39295700 80090004 7c000034 5400d97e <0f000000> 2f800000 409e001c 38800000 BenH: Changed to use GFP_KERNEL, the allocator will do the right thing Signed-off-by: Kumar Gala Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/sysdev/mpic.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index 32a2e950f56..d46de1f0f3e 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c @@ -1053,11 +1053,10 @@ struct mpic * __init mpic_alloc(struct device_node *node, int intvec_top; u64 paddr = phys_addr; - mpic = alloc_bootmem(sizeof(struct mpic)); + mpic = kzalloc(sizeof(struct mpic), GFP_KERNEL); if (mpic == NULL) return NULL; - - memset(mpic, 0, sizeof(struct mpic)); + mpic->name = name; mpic->hc_irq = mpic_irq_chip; -- cgit v1.2.3 From 850f6ac316cf84bba63fdb775c897834eccbfaa3 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 18 Jun 2009 19:25:00 +0000 Subject: powerpc/mm: Make k(un)map_atomic out of line Those functions are way too big to be inline, besides, kmap_atomic() wants to call debug_kmap_atomic() which isn't exported for modules and causes module link failures. Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/highmem.h | 57 ++-------------------------- arch/powerpc/mm/Makefile | 1 + arch/powerpc/mm/highmem.c | 77 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 82 insertions(+), 53 deletions(-) create mode 100644 arch/powerpc/mm/highmem.c diff --git a/arch/powerpc/include/asm/highmem.h b/arch/powerpc/include/asm/highmem.h index 684a73f4324..a74c4ee6c02 100644 --- a/arch/powerpc/include/asm/highmem.h +++ b/arch/powerpc/include/asm/highmem.h @@ -22,9 +22,7 @@ #ifdef __KERNEL__ -#include #include -#include #include #include #include @@ -62,6 +60,9 @@ extern pte_t *pkmap_page_table; extern void *kmap_high(struct page *page); extern void kunmap_high(struct page *page); +extern void *kmap_atomic_prot(struct page *page, enum km_type type, + pgprot_t prot); +extern void kunmap_atomic(void *kvaddr, enum km_type type); static inline void *kmap(struct page *page) { @@ -79,62 +80,11 @@ static inline void kunmap(struct page *page) kunmap_high(page); } -/* - * The use of kmap_atomic/kunmap_atomic is discouraged - kmap/kunmap - * gives a more generic (and caching) interface. But kmap_atomic can - * be used in IRQ contexts, so in some (very limited) cases we need - * it. - */ -static inline void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot) -{ - unsigned int idx; - unsigned long vaddr; - - /* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */ - pagefault_disable(); - if (!PageHighMem(page)) - return page_address(page); - - debug_kmap_atomic(type); - idx = type + KM_TYPE_NR*smp_processor_id(); - vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); -#ifdef CONFIG_DEBUG_HIGHMEM - BUG_ON(!pte_none(*(kmap_pte-idx))); -#endif - __set_pte_at(&init_mm, vaddr, kmap_pte-idx, mk_pte(page, prot), 1); - local_flush_tlb_page(NULL, vaddr); - - return (void*) vaddr; -} - static inline void *kmap_atomic(struct page *page, enum km_type type) { return kmap_atomic_prot(page, type, kmap_prot); } -static inline void kunmap_atomic(void *kvaddr, enum km_type type) -{ -#ifdef CONFIG_DEBUG_HIGHMEM - unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK; - enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id(); - - if (vaddr < __fix_to_virt(FIX_KMAP_END)) { - pagefault_enable(); - return; - } - - BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx)); - - /* - * force other mappings to Oops if they'll try to access - * this pte without first remap it - */ - pte_clear(&init_mm, vaddr, kmap_pte-idx); - local_flush_tlb_page(NULL, vaddr); -#endif - pagefault_enable(); -} - static inline struct page *kmap_atomic_to_page(void *ptr) { unsigned long idx, vaddr = (unsigned long) ptr; @@ -148,6 +98,7 @@ static inline struct page *kmap_atomic_to_page(void *ptr) return pte_page(*pte); } + #define flush_cache_kmaps() flush_cache_all() #endif /* __KERNEL__ */ diff --git a/arch/powerpc/mm/Makefile b/arch/powerpc/mm/Makefile index 2d2192e48de..3e68363405b 100644 --- a/arch/powerpc/mm/Makefile +++ b/arch/powerpc/mm/Makefile @@ -30,3 +30,4 @@ obj-$(CONFIG_PPC_MM_SLICES) += slice.o obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o obj-$(CONFIG_PPC_SUBPAGE_PROT) += subpage-prot.o obj-$(CONFIG_NOT_COHERENT_CACHE) += dma-noncoherent.o +obj-$(CONFIG_HIGHMEM) += highmem.o diff --git a/arch/powerpc/mm/highmem.c b/arch/powerpc/mm/highmem.c new file mode 100644 index 00000000000..c2186c74c85 --- /dev/null +++ b/arch/powerpc/mm/highmem.c @@ -0,0 +1,77 @@ +/* + * highmem.c: virtual kernel memory mappings for high memory + * + * PowerPC version, stolen from the i386 version. + * + * Used in CONFIG_HIGHMEM systems for memory pages which + * are not addressable by direct kernel virtual addresses. + * + * Copyright (C) 1999 Gerhard Wichert, Siemens AG + * Gerhard.Wichert@pdb.siemens.de + * + * + * Redesigned the x86 32-bit VM architecture to deal with + * up to 16 Terrabyte physical memory. With current x86 CPUs + * we now support up to 64 Gigabytes physical RAM. + * + * Copyright (C) 1999 Ingo Molnar + * + * Reworked for PowerPC by various contributors. Moved from + * highmem.h by Benjamin Herrenschmidt (c) 2009 IBM Corp. + */ + +#include +#include + +/* + * The use of kmap_atomic/kunmap_atomic is discouraged - kmap/kunmap + * gives a more generic (and caching) interface. But kmap_atomic can + * be used in IRQ contexts, so in some (very limited) cases we need + * it. + */ +void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot) +{ + unsigned int idx; + unsigned long vaddr; + + /* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */ + pagefault_disable(); + if (!PageHighMem(page)) + return page_address(page); + + debug_kmap_atomic(type); + idx = type + KM_TYPE_NR*smp_processor_id(); + vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); +#ifdef CONFIG_DEBUG_HIGHMEM + BUG_ON(!pte_none(*(kmap_pte-idx))); +#endif + __set_pte_at(&init_mm, vaddr, kmap_pte-idx, mk_pte(page, prot), 1); + local_flush_tlb_page(NULL, vaddr); + + return (void*) vaddr; +} +EXPORT_SYMBOL(kmap_atomic_prot); + +void kunmap_atomic(void *kvaddr, enum km_type type) +{ +#ifdef CONFIG_DEBUG_HIGHMEM + unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK; + enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id(); + + if (vaddr < __fix_to_virt(FIX_KMAP_END)) { + pagefault_enable(); + return; + } + + BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx)); + + /* + * force other mappings to Oops if they'll try to access + * this pte without first remap it + */ + pte_clear(&init_mm, vaddr, kmap_pte-idx); + local_flush_tlb_page(NULL, vaddr); +#endif + pagefault_enable(); +} +EXPORT_SYMBOL(kunmap_atomic); -- cgit v1.2.3 From 3514141aedc16c7344117d5bd79ec1310edf8fb3 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 18 Jun 2009 19:20:51 +0000 Subject: powerpc/pmac: Fix DMA ops for MacIO devices The macio_dev's created to map devices inside the MacIO ASICs don't have proper dma_ops. This causes crashes on some machines since the SCSI code calls dma_map_* on our behalf using the device we hang from. This fixes it by copying the parent PCI device dma_ops into the macio_dev when creating it. Signed-off-by: Benjamin Herrenschmidt --- drivers/macintosh/macio_asic.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c index 6e149f4a1ff..a0f68386c12 100644 --- a/drivers/macintosh/macio_asic.c +++ b/drivers/macintosh/macio_asic.c @@ -378,6 +378,17 @@ static struct macio_dev * macio_add_one_device(struct macio_chip *chip, dev->ofdev.dev.bus = &macio_bus_type; dev->ofdev.dev.release = macio_release_dev; +#ifdef CONFIG_PCI + /* Set the DMA ops to the ones from the PCI device, this could be + * fishy if we didn't know that on PowerMac it's always direct ops + * or iommu ops that will work fine + */ + dev->ofdev.dev.archdata.dma_ops = + chip->lbus.pdev->dev.archdata.dma_ops; + dev->ofdev.dev.archdata.dma_data = + chip->lbus.pdev->dev.archdata.dma_data; +#endif /* CONFIG_PCI */ + #ifdef DEBUG printk("preparing mdev @%p, ofdev @%p, dev @%p, kobj @%p\n", dev, &dev->ofdev, &dev->ofdev.dev, &dev->ofdev.dev.kobj); -- cgit v1.2.3 From 4a5cbf17c49a6024a6d7baf03efdffb8ed252bb1 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 18 Jun 2009 19:17:39 +0000 Subject: powerpc: Map more memory early on 601 processors The 32-bit kernel relies on some memory being mapped covering the kernel text,data and bss at least, early during boot before the full MMU setup is done. On 32-bit "classic" processors, this is done using BAT registers. On 601, the size of BATs is limited to 8M and we use 2 of them for that initial mapping. This can become quite tight when enabling features like lockdep, so let's use a 3rd one to bump that mapping from 16M to 24M. We keep the 4th BAT free as it can be useful for debugging early boot code to map things like serial ports. Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/head_32.S | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S index 48469463f89..fc213294275 100644 --- a/arch/powerpc/kernel/head_32.S +++ b/arch/powerpc/kernel/head_32.S @@ -1124,9 +1124,8 @@ mmu_off: RFI /* - * Use the first pair of BAT registers to map the 1st 16MB - * of RAM to PAGE_OFFSET. From this point on we can't safely - * call OF any more. + * On 601, we use 3 BATs to map up to 24M of RAM at _PAGE_OFFSET + * (we keep one for debugging) and on others, we use one 256M BAT. */ initial_bats: lis r11,PAGE_OFFSET@h @@ -1136,12 +1135,16 @@ initial_bats: bne 4f ori r11,r11,4 /* set up BAT registers for 601 */ li r8,0x7f /* valid, block length = 8MB */ - oris r9,r11,0x800000@h /* set up BAT reg for 2nd 8M */ - oris r10,r8,0x800000@h /* set up BAT reg for 2nd 8M */ mtspr SPRN_IBAT0U,r11 /* N.B. 601 has valid bit in */ mtspr SPRN_IBAT0L,r8 /* lower BAT register */ - mtspr SPRN_IBAT1U,r9 - mtspr SPRN_IBAT1L,r10 + addis r11,r11,0x800000@h + addis r8,r8,0x800000@h + mtspr SPRN_IBAT1U,r11 + mtspr SPRN_IBAT1L,r8 + addis r11,r11,0x800000@h + addis r8,r8,0x800000@h + mtspr SPRN_IBAT2U,r11 + mtspr SPRN_IBAT2L,r8 isync blr -- cgit v1.2.3 From e4031d52c57b17c76bbdb15fcf1a32a9f87d9756 Mon Sep 17 00:00:00 2001 From: Sonny Rao Date: Thu, 18 Jun 2009 15:14:36 +0000 Subject: powerpc/BSR: add 4096 byte BSR size Add a 4096 byte BSR size which will be used on new machines. Also, remove the warning when we run into an unknown size, as this can spam the kernel log excessively. Signed-off-by: Sonny Rao Signed-off-by: Benjamin Herrenschmidt --- drivers/char/bsr.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) diff --git a/drivers/char/bsr.c b/drivers/char/bsr.c index 140ea10ecb8..7d9fd8a8dfd 100644 --- a/drivers/char/bsr.c +++ b/drivers/char/bsr.c @@ -75,12 +75,13 @@ static struct class *bsr_class; static int bsr_major; enum { - BSR_8 = 0, - BSR_16 = 1, - BSR_64 = 2, - BSR_128 = 3, - BSR_UNKNOWN = 4, - BSR_MAX = 5, + BSR_8 = 0, + BSR_16 = 1, + BSR_64 = 2, + BSR_128 = 3, + BSR_4096 = 4, + BSR_UNKNOWN = 5, + BSR_MAX = 6, }; static unsigned bsr_types[BSR_MAX]; @@ -218,9 +219,11 @@ static int bsr_add_node(struct device_node *bn) case 128: cur->bsr_type = BSR_128; break; + case 4096: + cur->bsr_type = BSR_4096; + break; default: cur->bsr_type = BSR_UNKNOWN; - printk(KERN_INFO "unknown BSR size %d\n",cur->bsr_bytes); } cur->bsr_num = bsr_types[cur->bsr_type]; -- cgit v1.2.3 From 04a85d1234d7e1682a612565e663e6b760918643 Mon Sep 17 00:00:00 2001 From: Sonny Rao Date: Thu, 18 Jun 2009 15:13:04 +0000 Subject: powerpc/BSR: Fix BSR to allow mmap of small BSR on 64k kernel On Mon, Nov 17, 2008 at 01:26:13AM -0600, Sonny Rao wrote: > On Fri, Nov 07, 2008 at 04:28:29PM +1100, Paul Mackerras wrote: > > Sonny Rao writes: > > > > > Fix the BSR driver to allow small BSR devices, which are limited to a > > > single 4k space, on a 64k page kernel. Previously the driver would > > > reject the mmap since the size was smaller than PAGESIZE (or because > > > the size was greater than the size of the device). Now, we check for > > > this case use remap_4k_pfn(). Also, take out code to set vm_flags, > > > as the remap_pfn functions will do this for us. > > > > Thanks. > > > > Do we know that the BSR size will always be 4k if it's not a multiple > > of 64k? Is it possible that we could get 8k, 16k or 32k or BSRs? > > If it is possible, what does the user need to be able to do? Do they > > just want to map 4k, or might then want to map the whole thing? > > > Hi Paul, I took a look at changing the driver to reject a request for > mapping more than a single 4k page, however the only indication we get > of the requested size in the mmap function is the vma size, and this > is always one page at minimum. So, it's not possible to determine if > the user wants one 4k page or more. As I noted in my first response, > there is only one case where this is even possible and I don't think > it is a significant concern. > > I did notice that I left out the check to see if the user is trying to > map more than the device length, so I fixed that. Here's the revised > patch. Alright, I've reworked this now so that if we get one of these cases where there's a bsr that's > 4k and < 64k on a 64k kernel we'll only advertise that it is a 4k BSR to userspace. I think this is the best solution since user programs are only supposed to look at sysfs to determine how much can be mapped, and libbsr does this as well. Please consider for 2.6.31 as a fix, thanks. Signed-off-by: Benjamin Herrenschmidt --- drivers/char/bsr.c | 25 +++++++++++++++++++------ 1 file changed, 19 insertions(+), 6 deletions(-) diff --git a/drivers/char/bsr.c b/drivers/char/bsr.c index 7d9fd8a8dfd..c02db01f736 100644 --- a/drivers/char/bsr.c +++ b/drivers/char/bsr.c @@ -27,6 +27,7 @@ #include #include #include +#include #include /* @@ -118,15 +119,22 @@ static int bsr_mmap(struct file *filp, struct vm_area_struct *vma) { unsigned long size = vma->vm_end - vma->vm_start; struct bsr_dev *dev = filp->private_data; + int ret; - if (size > dev->bsr_len || (size & (PAGE_SIZE-1))) - return -EINVAL; - - vma->vm_flags |= (VM_IO | VM_DONTEXPAND); vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); - if (io_remap_pfn_range(vma, vma->vm_start, dev->bsr_addr >> PAGE_SHIFT, - size, vma->vm_page_prot)) + /* check for the case of a small BSR device and map one 4k page for it*/ + if (dev->bsr_len < PAGE_SIZE && size == PAGE_SIZE) + ret = remap_4k_pfn(vma, vma->vm_start, dev->bsr_addr >> 12, + vma->vm_page_prot); + else if (size <= dev->bsr_len) + ret = io_remap_pfn_range(vma, vma->vm_start, + dev->bsr_addr >> PAGE_SHIFT, + size, vma->vm_page_prot); + else + return -EINVAL; + + if (ret) return -EAGAIN; return 0; @@ -206,6 +214,11 @@ static int bsr_add_node(struct device_node *bn) cur->bsr_stride = bsr_stride[i]; cur->bsr_dev = MKDEV(bsr_major, i + total_bsr_devs); + /* if we have a bsr_len of > 4k and less then PAGE_SIZE (64k pages) */ + /* we can only map 4k of it, so only advertise the 4k in sysfs */ + if (cur->bsr_len > 4096 && cur->bsr_len < PAGE_SIZE) + cur->bsr_len = 4096; + switch(cur->bsr_bytes) { case 8: cur->bsr_type = BSR_8; -- cgit v1.2.3 From 5d38902c483881645ba16058cffaa478b81e5cfa Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Wed, 17 Jun 2009 17:43:59 +0000 Subject: powerpc: Add irqtrace support for 32-bit powerpc Based on initial work from: Dale Farnsworth Add the low level irq tracing hooks for 32-bit powerpc needed to enable full lockdep functionality. The approach taken to deal with the code in entry_32.S is that we don't trace all the transitions of MSR:EE when we just turn it off to peek at TI_FLAGS without races. Only when we are calling into C code or returning from exceptions with a state that have changed from what lockdep thinks. There's a little bugger though: If we take an exception that keeps interrupts enabled (such as an alignment exception) while interrupts are enabled, we will call trace_hardirqs_on() on the way back spurriously. Not a big deal, but to get rid of it would require remembering in pt_regs that the exception was one of the type that kept interrupts enabled which we don't know at this stage. (Well, we could test all cases for regs->trap but that sucks too much). Signed-off-by: Benjamin Herrenschmidt Tested-by: Kumar Gala --- arch/powerpc/Kconfig | 1 - arch/powerpc/include/asm/hw_irq.h | 20 +++--- arch/powerpc/kernel/entry_32.S | 127 ++++++++++++++++++++++++++++++++++++-- arch/powerpc/kernel/setup_32.c | 2 + 4 files changed, 135 insertions(+), 15 deletions(-) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index bf6cedfa05d..d00131ca083 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -62,7 +62,6 @@ config HAVE_LATENCYTOP_SUPPORT config TRACE_IRQFLAGS_SUPPORT bool - depends on PPC64 default y config LOCKDEP_SUPPORT diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h index 867ab8ed69b..8b505eaaa38 100644 --- a/arch/powerpc/include/asm/hw_irq.h +++ b/arch/powerpc/include/asm/hw_irq.h @@ -68,13 +68,13 @@ static inline int irqs_disabled_flags(unsigned long flags) #if defined(CONFIG_BOOKE) #define SET_MSR_EE(x) mtmsr(x) -#define local_irq_restore(flags) __asm__ __volatile__("wrtee %0" : : "r" (flags) : "memory") +#define raw_local_irq_restore(flags) __asm__ __volatile__("wrtee %0" : : "r" (flags) : "memory") #else #define SET_MSR_EE(x) mtmsr(x) -#define local_irq_restore(flags) mtmsr(flags) +#define raw_local_irq_restore(flags) mtmsr(flags) #endif -static inline void local_irq_disable(void) +static inline void raw_local_irq_disable(void) { #ifdef CONFIG_BOOKE __asm__ __volatile__("wrteei 0": : :"memory"); @@ -86,7 +86,7 @@ static inline void local_irq_disable(void) #endif } -static inline void local_irq_enable(void) +static inline void raw_local_irq_enable(void) { #ifdef CONFIG_BOOKE __asm__ __volatile__("wrteei 1": : :"memory"); @@ -98,7 +98,7 @@ static inline void local_irq_enable(void) #endif } -static inline void local_irq_save_ptr(unsigned long *flags) +static inline void raw_local_irq_save_ptr(unsigned long *flags) { unsigned long msr; msr = mfmsr(); @@ -110,12 +110,12 @@ static inline void local_irq_save_ptr(unsigned long *flags) #endif } -#define local_save_flags(flags) ((flags) = mfmsr()) -#define local_irq_save(flags) local_irq_save_ptr(&flags) -#define irqs_disabled() ((mfmsr() & MSR_EE) == 0) +#define raw_local_save_flags(flags) ((flags) = mfmsr()) +#define raw_local_irq_save(flags) raw_local_irq_save_ptr(&flags) +#define raw_irqs_disabled() ((mfmsr() & MSR_EE) == 0) +#define raw_irqs_disabled_flags(flags) (((flags) & MSR_EE) == 0) -#define hard_irq_enable() local_irq_enable() -#define hard_irq_disable() local_irq_disable() +#define hard_irq_disable() raw_local_irq_disable() static inline int irqs_disabled_flags(unsigned long flags) { diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S index 4dd38f12915..3cadba60a4b 100644 --- a/arch/powerpc/kernel/entry_32.S +++ b/arch/powerpc/kernel/entry_32.S @@ -191,11 +191,49 @@ transfer_to_handler_cont: mflr r9 lwz r11,0(r9) /* virtual address of handler */ lwz r9,4(r9) /* where to go when done */ +#ifdef CONFIG_TRACE_IRQFLAGS + lis r12,reenable_mmu@h + ori r12,r12,reenable_mmu@l + mtspr SPRN_SRR0,r12 + mtspr SPRN_SRR1,r10 + SYNC + RFI +reenable_mmu: /* re-enable mmu so we can */ + mfmsr r10 + lwz r12,_MSR(r1) + xor r10,r10,r12 + andi. r10,r10,MSR_EE /* Did EE change? */ + beq 1f + + /* Save handler and return address into the 2 unused words + * of the STACK_FRAME_OVERHEAD (sneak sneak sneak). Everything + * else can be recovered from the pt_regs except r3 which for + * normal interrupts has been set to pt_regs and for syscalls + * is an argument, so we temporarily use ORIG_GPR3 to save it + */ + stw r9,8(r1) + stw r11,12(r1) + stw r3,ORIG_GPR3(r1) + bl trace_hardirqs_off + lwz r0,GPR0(r1) + lwz r3,ORIG_GPR3(r1) + lwz r4,GPR4(r1) + lwz r5,GPR5(r1) + lwz r6,GPR6(r1) + lwz r7,GPR7(r1) + lwz r8,GPR8(r1) + lwz r9,8(r1) + lwz r11,12(r1) +1: mtctr r11 + mtlr r9 + bctr /* jump to handler */ +#else /* CONFIG_TRACE_IRQFLAGS */ mtspr SPRN_SRR0,r11 mtspr SPRN_SRR1,r10 mtlr r9 SYNC RFI /* jump to handler, enable MMU */ +#endif /* CONFIG_TRACE_IRQFLAGS */ #if defined (CONFIG_6xx) || defined(CONFIG_E500) 4: rlwinm r12,r12,0,~_TLF_NAPPING @@ -251,6 +289,31 @@ _GLOBAL(DoSyscall) #ifdef SHOW_SYSCALLS bl do_show_syscall #endif /* SHOW_SYSCALLS */ +#ifdef CONFIG_TRACE_IRQFLAGS + /* Return from syscalls can (and generally will) hard enable + * interrupts. You aren't supposed to call a syscall with + * interrupts disabled in the first place. However, to ensure + * that we get it right vs. lockdep if it happens, we force + * that hard enable here with appropriate tracing if we see + * that we have been called with interrupts off + */ + mfmsr r11 + andi. r12,r11,MSR_EE + bne+ 1f + /* We came in with interrupts disabled, we enable them now */ + bl trace_hardirqs_on + mfmsr r11 + lwz r0,GPR0(r1) + lwz r3,GPR3(r1) + lwz r4,GPR4(r1) + ori r11,r11,MSR_EE + lwz r5,GPR5(r1) + lwz r6,GPR6(r1) + lwz r7,GPR7(r1) + lwz r8,GPR8(r1) + mtmsr r11 +1: +#endif /* CONFIG_TRACE_IRQFLAGS */ rlwinm r10,r1,0,0,(31-THREAD_SHIFT) /* current_thread_info() */ lwz r11,TI_FLAGS(r10) andi. r11,r11,_TIF_SYSCALL_T_OR_A @@ -275,6 +338,7 @@ ret_from_syscall: rlwinm r12,r1,0,0,(31-THREAD_SHIFT) /* current_thread_info() */ /* disable interrupts so current_thread_info()->flags can't change */ LOAD_MSR_KERNEL(r10,MSR_KERNEL) /* doesn't include MSR_EE */ + /* Note: We don't bother telling lockdep about it */ SYNC MTMSRD(r10) lwz r9,TI_FLAGS(r12) @@ -288,6 +352,19 @@ ret_from_syscall: oris r11,r11,0x1000 /* Set SO bit in CR */ stw r11,_CCR(r1) syscall_exit_cont: + lwz r8,_MSR(r1) +#ifdef CONFIG_TRACE_IRQFLAGS + /* If we are going to return from the syscall with interrupts + * off, we trace that here. It shouldn't happen though but we + * want to catch the bugger if it does right ? + */ + andi. r10,r8,MSR_EE + bne+ 1f + stw r3,GPR3(r1) + bl trace_hardirqs_off + lwz r3,GPR3(r1) +1: +#endif /* CONFIG_TRACE_IRQFLAGS */ #if defined(CONFIG_4xx) || defined(CONFIG_BOOKE) /* If the process has its own DBCR0 value, load it up. The internal debug mode bit tells us that dbcr0 should be loaded. */ @@ -311,7 +388,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_NEED_PAIRED_STWCX) mtlr r4 mtcr r5 lwz r7,_NIP(r1) - lwz r8,_MSR(r1) FIX_SRR1(r8, r0) lwz r2,GPR2(r1) lwz r1,GPR1(r1) @@ -394,7 +470,9 @@ syscall_exit_work: andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP) beq ret_from_except - /* Re-enable interrupts */ + /* Re-enable interrupts. There is no need to trace that with + * lockdep as we are supposed to have IRQs on at this point + */ ori r10,r10,MSR_EE SYNC MTMSRD(r10) @@ -705,6 +783,7 @@ ret_from_except: /* Hard-disable interrupts so that current_thread_info()->flags * can't change between when we test it and when we return * from the interrupt. */ + /* Note: We don't bother telling lockdep about it */ LOAD_MSR_KERNEL(r10,MSR_KERNEL) SYNC /* Some chip revs have problems here... */ MTMSRD(r10) /* disable interrupts */ @@ -744,11 +823,24 @@ resume_kernel: beq+ restore andi. r0,r3,MSR_EE /* interrupts off? */ beq restore /* don't schedule if so */ +#ifdef CONFIG_TRACE_IRQFLAGS + /* Lockdep thinks irqs are enabled, we need to call + * preempt_schedule_irq with IRQs off, so we inform lockdep + * now that we -did- turn them off already + */ + bl trace_hardirqs_off +#endif 1: bl preempt_schedule_irq rlwinm r9,r1,0,0,(31-THREAD_SHIFT) lwz r3,TI_FLAGS(r9) andi. r0,r3,_TIF_NEED_RESCHED bne- 1b +#ifdef CONFIG_TRACE_IRQFLAGS + /* And now, to properly rebalance the above, we tell lockdep they + * are being turned back on, which will happen when we return + */ + bl trace_hardirqs_on +#endif #else resume_kernel: #endif /* CONFIG_PREEMPT */ @@ -765,6 +857,28 @@ restore: stw r6,icache_44x_need_flush@l(r4) 1: #endif /* CONFIG_44x */ + + lwz r9,_MSR(r1) +#ifdef CONFIG_TRACE_IRQFLAGS + /* Lockdep doesn't know about the fact that IRQs are temporarily turned + * off in this assembly code while peeking at TI_FLAGS() and such. However + * we need to inform it if the exception turned interrupts off, and we + * are about to trun them back on. + * + * The problem here sadly is that we don't know whether the exceptions was + * one that turned interrupts off or not. So we always tell lockdep about + * turning them on here when we go back to wherever we came from with EE + * on, even if that may meen some redudant calls being tracked. Maybe later + * we could encode what the exception did somewhere or test the exception + * type in the pt_regs but that sounds overkill + */ + andi. r10,r9,MSR_EE + beq 1f + bl trace_hardirqs_on + lwz r9,_MSR(r1) +1: +#endif /* CONFIG_TRACE_IRQFLAGS */ + lwz r0,GPR0(r1) lwz r2,GPR2(r1) REST_4GPRS(3, r1) @@ -782,7 +896,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_NEED_PAIRED_STWCX) stwcx. r0,0,r1 /* to clear the reservation */ #if !(defined(CONFIG_4xx) || defined(CONFIG_BOOKE)) - lwz r9,_MSR(r1) andi. r10,r9,MSR_RI /* check if this exception occurred */ beql nonrecoverable /* at a bad place (MSR:RI = 0) */ @@ -805,7 +918,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_NEED_PAIRED_STWCX) MTMSRD(r10) /* clear the RI bit */ .globl exc_exit_restart exc_exit_restart: - lwz r9,_MSR(r1) lwz r12,_NIP(r1) FIX_SRR1(r9,r10) mtspr SPRN_SRR0,r12 @@ -1035,11 +1147,18 @@ do_work: /* r10 contains MSR_KERNEL here */ beq do_user_signal do_resched: /* r10 contains MSR_KERNEL here */ + /* Note: We don't need to inform lockdep that we are enabling + * interrupts here. As far as it knows, they are already enabled + */ ori r10,r10,MSR_EE SYNC MTMSRD(r10) /* hard-enable interrupts */ bl schedule recheck: + /* Note: And we don't tell it we are disabling them again + * neither. Those disable/enable cycles used to peek at + * TI_FLAGS aren't advertised. + */ LOAD_MSR_KERNEL(r10,MSR_KERNEL) SYNC MTMSRD(r10) /* disable interrupts */ diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c index 1d154248cf4..e1e3059cf34 100644 --- a/arch/powerpc/kernel/setup_32.c +++ b/arch/powerpc/kernel/setup_32.c @@ -119,6 +119,8 @@ notrace unsigned long __init early_init(unsigned long dt_ptr) */ notrace void __init machine_init(unsigned long dt_ptr) { + lockdep_init(); + /* Enable early debugging if any specified (see udbg.h) */ udbg_early_init(); -- cgit v1.2.3 From f97bb36f705da0a86b3ea77bfeee3415fee0b025 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Tue, 16 Jun 2009 16:42:49 +0000 Subject: powerpc/rtas: Turn rtas lock into a raw spinlock RTAS currently uses a normal spinlock. However it can be called from contexts where this is not necessarily a good idea. For example, it can be called while syncing timebases, with the core timebase being frozen. Unfortunately, that will deadlock in case of lock contention when spinlock debugging is enabled as the spin lock debugging code will try to use __delay() which ... relies on the timebase being enabled. Also RTAS can be used in some low level IRQ handling code path so it may as well be a raw spinlock for -rt sake. Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/rtas.h | 2 +- arch/powerpc/kernel/rtas.c | 38 +++++++++++++++++++++++++++++--------- 2 files changed, 30 insertions(+), 10 deletions(-) diff --git a/arch/powerpc/include/asm/rtas.h b/arch/powerpc/include/asm/rtas.h index 01c12339b30..0af42d20b69 100644 --- a/arch/powerpc/include/asm/rtas.h +++ b/arch/powerpc/include/asm/rtas.h @@ -58,7 +58,7 @@ struct rtas_t { unsigned long entry; /* physical address pointer */ unsigned long base; /* physical address pointer */ unsigned long size; - spinlock_t lock; + raw_spinlock_t lock; struct rtas_args args; struct device_node *dev; /* virtual address pointer */ }; diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c index ee4c7609b64..d9a9974c693 100644 --- a/arch/powerpc/kernel/rtas.c +++ b/arch/powerpc/kernel/rtas.c @@ -40,7 +40,7 @@ #include struct rtas_t rtas = { - .lock = SPIN_LOCK_UNLOCKED + .lock = __RAW_SPIN_LOCK_UNLOCKED }; EXPORT_SYMBOL(rtas); @@ -67,6 +67,28 @@ unsigned long rtas_rmo_buf; void (*rtas_flash_term_hook)(int); EXPORT_SYMBOL(rtas_flash_term_hook); +/* RTAS use home made raw locking instead of spin_lock_irqsave + * because those can be called from within really nasty contexts + * such as having the timebase stopped which would lockup with + * normal locks and spinlock debugging enabled + */ +static unsigned long lock_rtas(void) +{ + unsigned long flags; + + local_irq_save(flags); + preempt_disable(); + __raw_spin_lock_flags(&rtas.lock, flags); + return flags; +} + +static void unlock_rtas(unsigned long flags) +{ + __raw_spin_unlock(&rtas.lock); + local_irq_restore(flags); + preempt_enable(); +} + /* * call_rtas_display_status and call_rtas_display_status_delay * are designed only for very early low-level debugging, which @@ -79,7 +101,7 @@ static void call_rtas_display_status(char c) if (!rtas.base) return; - spin_lock_irqsave(&rtas.lock, s); + s = lock_rtas(); args->token = 10; args->nargs = 1; @@ -89,7 +111,7 @@ static void call_rtas_display_status(char c) enter_rtas(__pa(args)); - spin_unlock_irqrestore(&rtas.lock, s); + unlock_rtas(s); } static void call_rtas_display_status_delay(char c) @@ -411,8 +433,7 @@ int rtas_call(int token, int nargs, int nret, int *outputs, ...) if (!rtas.entry || token == RTAS_UNKNOWN_SERVICE) return -1; - /* Gotta do something different here, use global lock for now... */ - spin_lock_irqsave(&rtas.lock, s); + s = lock_rtas(); rtas_args = &rtas.args; rtas_args->token = token; @@ -439,8 +460,7 @@ int rtas_call(int token, int nargs, int nret, int *outputs, ...) outputs[i] = rtas_args->rets[i+1]; ret = (nret > 0)? rtas_args->rets[0]: 0; - /* Gotta do something different here, use global lock for now... */ - spin_unlock_irqrestore(&rtas.lock, s); + unlock_rtas(s); if (buff_copy) { log_error(buff_copy, ERR_TYPE_RTAS_LOG, 0); @@ -837,7 +857,7 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs) buff_copy = get_errorlog_buffer(); - spin_lock_irqsave(&rtas.lock, flags); + flags = lock_rtas(); rtas.args = args; enter_rtas(__pa(&rtas.args)); @@ -848,7 +868,7 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs) if (args.rets[0] == -1) errbuf = __fetch_rtas_last_error(buff_copy); - spin_unlock_irqrestore(&rtas.lock, flags); + unlock_rtas(flags); if (buff_copy) { if (errbuf) -- cgit v1.2.3 From c4007a2fbf5f82b7e694c22b5929c87e38415a56 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Tue, 16 Jun 2009 16:42:50 +0000 Subject: powerpc: Use one common impl. of RTAS timebase sync and use raw spinlock Several platforms use their own copy of what is essentially the same code, using RTAS to synchronize the timebases when bringing up new CPUs. This moves it all into a single common implementation and additionally turns the spinlock into a raw spinlock since the former can rely on the timebase not being frozen when spinlock debugging is enabled, and finally masks interrupts while the timebase is disabled. Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/rtas.h | 3 +++ arch/powerpc/kernel/rtas.c | 31 +++++++++++++++++++++++++++++++ arch/powerpc/platforms/cell/smp.c | 30 ++---------------------------- arch/powerpc/platforms/chrp/smp.c | 33 ++------------------------------- arch/powerpc/platforms/pseries/smp.c | 30 ++---------------------------- 5 files changed, 40 insertions(+), 87 deletions(-) diff --git a/arch/powerpc/include/asm/rtas.h b/arch/powerpc/include/asm/rtas.h index 0af42d20b69..168fce72620 100644 --- a/arch/powerpc/include/asm/rtas.h +++ b/arch/powerpc/include/asm/rtas.h @@ -245,5 +245,8 @@ static inline u32 rtas_config_addr(int busno, int devfn, int reg) (devfn << 8) | (reg & 0xff); } +extern void __cpuinit rtas_give_timebase(void); +extern void __cpuinit rtas_take_timebase(void); + #endif /* __KERNEL__ */ #endif /* _POWERPC_RTAS_H */ diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c index d9a9974c693..c434823b8c8 100644 --- a/arch/powerpc/kernel/rtas.c +++ b/arch/powerpc/kernel/rtas.c @@ -38,6 +38,7 @@ #include #include #include +#include struct rtas_t rtas = { .lock = __RAW_SPIN_LOCK_UNLOCKED @@ -971,3 +972,33 @@ int __init early_init_dt_scan_rtas(unsigned long node, /* break now */ return 1; } + +static raw_spinlock_t timebase_lock; +static u64 timebase = 0; + +void __cpuinit rtas_give_timebase(void) +{ + unsigned long flags; + + local_irq_save(flags); + hard_irq_disable(); + __raw_spin_lock(&timebase_lock); + rtas_call(rtas_token("freeze-time-base"), 0, 1, NULL); + timebase = get_tb(); + __raw_spin_unlock(&timebase_lock); + + while (timebase) + barrier(); + rtas_call(rtas_token("thaw-time-base"), 0, 1, NULL); + local_irq_restore(flags); +} + +void __cpuinit rtas_take_timebase(void) +{ + while (!timebase) + barrier(); + __raw_spin_lock(&timebase_lock); + set_tb(timebase >> 32, timebase & 0xffffffff); + timebase = 0; + __raw_spin_unlock(&timebase_lock); +} diff --git a/arch/powerpc/platforms/cell/smp.c b/arch/powerpc/platforms/cell/smp.c index 9046803c827..bc97fada48c 100644 --- a/arch/powerpc/platforms/cell/smp.c +++ b/arch/powerpc/platforms/cell/smp.c @@ -36,7 +36,6 @@ #include #include #include -#include #include #include #include @@ -140,31 +139,6 @@ static void __devinit smp_cell_setup_cpu(int cpu) mtspr(SPRN_DABRX, DABRX_KERNEL | DABRX_USER); } -static DEFINE_SPINLOCK(timebase_lock); -static unsigned long timebase = 0; - -static void __devinit cell_give_timebase(void) -{ - spin_lock(&timebase_lock); - rtas_call(rtas_token("freeze-time-base"), 0, 1, NULL); - timebase = get_tb(); - spin_unlock(&timebase_lock); - - while (timebase) - barrier(); - rtas_call(rtas_token("thaw-time-base"), 0, 1, NULL); -} - -static void __devinit cell_take_timebase(void) -{ - while (!timebase) - barrier(); - spin_lock(&timebase_lock); - set_tb(timebase >> 32, timebase & 0xffffffff); - timebase = 0; - spin_unlock(&timebase_lock); -} - static void __devinit smp_cell_kick_cpu(int nr) { BUG_ON(nr < 0 || nr >= NR_CPUS); @@ -224,8 +198,8 @@ void __init smp_init_cell(void) /* Non-lpar has additional take/give timebase */ if (rtas_token("freeze-time-base") != RTAS_UNKNOWN_SERVICE) { - smp_ops->give_timebase = cell_give_timebase; - smp_ops->take_timebase = cell_take_timebase; + smp_ops->give_timebase = rtas_give_timebase; + smp_ops->take_timebase = rtas_take_timebase; } DBG(" <- smp_init_cell()\n"); diff --git a/arch/powerpc/platforms/chrp/smp.c b/arch/powerpc/platforms/chrp/smp.c index 10a4a4d063b..02cafecc90e 100644 --- a/arch/powerpc/platforms/chrp/smp.c +++ b/arch/powerpc/platforms/chrp/smp.c @@ -26,7 +26,6 @@ #include #include #include -#include #include #include #include @@ -42,40 +41,12 @@ static void __devinit smp_chrp_setup_cpu(int cpu_nr) mpic_setup_this_cpu(); } -static DEFINE_SPINLOCK(timebase_lock); -static unsigned int timebase_upper = 0, timebase_lower = 0; - -void __devinit smp_chrp_give_timebase(void) -{ - spin_lock(&timebase_lock); - rtas_call(rtas_token("freeze-time-base"), 0, 1, NULL); - timebase_upper = get_tbu(); - timebase_lower = get_tbl(); - spin_unlock(&timebase_lock); - - while (timebase_upper || timebase_lower) - barrier(); - rtas_call(rtas_token("thaw-time-base"), 0, 1, NULL); -} - -void __devinit smp_chrp_take_timebase(void) -{ - while (!(timebase_upper || timebase_lower)) - barrier(); - spin_lock(&timebase_lock); - set_tb(timebase_upper, timebase_lower); - timebase_upper = 0; - timebase_lower = 0; - spin_unlock(&timebase_lock); - printk("CPU %i taken timebase\n", smp_processor_id()); -} - /* CHRP with openpic */ struct smp_ops_t chrp_smp_ops = { .message_pass = smp_mpic_message_pass, .probe = smp_mpic_probe, .kick_cpu = smp_chrp_kick_cpu, .setup_cpu = smp_chrp_setup_cpu, - .give_timebase = smp_chrp_give_timebase, - .take_timebase = smp_chrp_take_timebase, + .give_timebase = rtas_give_timebase, + .take_timebase = rtas_take_timebase, }; diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c index 1a231c389ba..1f8f6cfb94f 100644 --- a/arch/powerpc/platforms/pseries/smp.c +++ b/arch/powerpc/platforms/pseries/smp.c @@ -35,7 +35,6 @@ #include #include #include -#include #include #include #include @@ -118,31 +117,6 @@ static void __devinit smp_xics_setup_cpu(int cpu) } #endif /* CONFIG_XICS */ -static DEFINE_SPINLOCK(timebase_lock); -static unsigned long timebase = 0; - -static void __devinit pSeries_give_timebase(void) -{ - spin_lock(&timebase_lock); - rtas_call(rtas_token("freeze-time-base"), 0, 1, NULL); - timebase = get_tb(); - spin_unlock(&timebase_lock); - - while (timebase) - barrier(); - rtas_call(rtas_token("thaw-time-base"), 0, 1, NULL); -} - -static void __devinit pSeries_take_timebase(void) -{ - while (!timebase) - barrier(); - spin_lock(&timebase_lock); - set_tb(timebase >> 32, timebase & 0xffffffff); - timebase = 0; - spin_unlock(&timebase_lock); -} - static void __devinit smp_pSeries_kick_cpu(int nr) { BUG_ON(nr < 0 || nr >= NR_CPUS); @@ -209,8 +183,8 @@ static void __init smp_init_pseries(void) /* Non-lpar has additional take/give timebase */ if (rtas_token("freeze-time-base") != RTAS_UNKNOWN_SERVICE) { - smp_ops->give_timebase = pSeries_give_timebase; - smp_ops->take_timebase = pSeries_take_timebase; + smp_ops->give_timebase = rtas_give_timebase; + smp_ops->take_timebase = rtas_take_timebase; } pr_debug(" <- smp_init_pSeries()\n"); -- cgit v1.2.3 From 6893ce6c1cdcf489b7ca8e6b6596208aa971a083 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Tue, 16 Jun 2009 16:42:51 +0000 Subject: powerpc/pasemi: Use raw spinlock in SMP TB sync spin_lock() can hang if called while the timebase is frozen, so use a raw lock instead, also disable interrupts while at it. Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/platforms/pasemi/setup.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c index 153051eb6d9..a4619347aa7 100644 --- a/arch/powerpc/platforms/pasemi/setup.c +++ b/arch/powerpc/platforms/pasemi/setup.c @@ -71,20 +71,25 @@ static void pas_restart(char *cmd) } #ifdef CONFIG_SMP -static DEFINE_SPINLOCK(timebase_lock); +static raw_spinlock_t timebase_lock; static unsigned long timebase; static void __devinit pas_give_timebase(void) { - spin_lock(&timebase_lock); + unsigned long flags; + + local_irq_save(flags); + hard_irq_disable(); + __raw_spin_lock(&timebase_lock); mtspr(SPRN_TBCTL, TBCTL_FREEZE); isync(); timebase = get_tb(); - spin_unlock(&timebase_lock); + __raw_spin_unlock(&timebase_lock); while (timebase) barrier(); mtspr(SPRN_TBCTL, TBCTL_RESTART); + local_irq_restore(flags); } static void __devinit pas_take_timebase(void) @@ -92,10 +97,10 @@ static void __devinit pas_take_timebase(void) while (!timebase) smp_rmb(); - spin_lock(&timebase_lock); + __raw_spin_lock(&timebase_lock); set_tb(timebase >> 32, timebase & 0xffffffff); timebase = 0; - spin_unlock(&timebase_lock); + __raw_spin_unlock(&timebase_lock); } struct smp_ops_t pas_smp_ops = { -- cgit v1.2.3 From 03c01aa740d4137ea2884328f2c29956c6084834 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Tue, 16 Jun 2009 15:55:18 +0000 Subject: powerpc/of: Fix usage of dev_set_name() in of_device_alloc() dev_set_name() takes a format string, so use it properly and avoid a warning with recent gcc's Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/of_device.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/of_device.c b/arch/powerpc/kernel/of_device.c index fa983a59c4c..a359cb08e90 100644 --- a/arch/powerpc/kernel/of_device.c +++ b/arch/powerpc/kernel/of_device.c @@ -76,7 +76,7 @@ struct of_device *of_device_alloc(struct device_node *np, dev->dev.archdata.of_node = np; if (bus_id) - dev_set_name(&dev->dev, bus_id); + dev_set_name(&dev->dev, "%s", bus_id); else of_device_make_bus_id(dev); -- cgit v1.2.3 From f694cda89250f38782a5fd0b2d32fe33a39dcf37 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Tue, 16 Jun 2009 15:55:19 +0000 Subject: powerpc/440: Fix warning early debug code The function udbg_44x_as1_flush() has the wrong prototype causing a warning when enabling 440 early debug. Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/udbg_16550.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/udbg_16550.c b/arch/powerpc/kernel/udbg_16550.c index 0362a891e54..acb74a17bbb 100644 --- a/arch/powerpc/kernel/udbg_16550.c +++ b/arch/powerpc/kernel/udbg_16550.c @@ -219,7 +219,7 @@ void udbg_init_pas_realmode(void) #ifdef CONFIG_PPC_EARLY_DEBUG_44x #include -static int udbg_44x_as1_flush(void) +static void udbg_44x_as1_flush(void) { if (udbg_comport) { while ((as1_readb(&udbg_comport->lsr) & LSR_THRE) == 0) -- cgit v1.2.3 From 6c16a74d423f584ed80815ee7b944f5b578dd37a Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Mon, 15 Jun 2009 16:53:43 +0000 Subject: powerpc/mm: Fix potential access to freed pages when using hugetlbfs When using 64k page sizes, our PTE pages are split in two halves, the second half containing the "extension" used to keep track of individual 4k pages when not using HW 64k pages. However, our page tables used for hugetlb have a slightly different format and don't carry that "second half". Our code that batched PTEs to be invalidated unconditionally reads the "second half" (to put it into the batch), which means that when called to invalidate hugetlb PTEs, it will access unrelated memory. It breaks when CONFIG_DEBUG_PAGEALLOC is enabled. This fixes it by only accessing the second half when the _PAGE_COMBO bit is set in the first half, which indicates that we are dealing with a "combo" page which represents 16x4k subpages. Anything else shouldn't have this bit set and thus not require loading from the second half. Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/pte-hash64-64k.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/include/asm/pte-hash64-64k.h b/arch/powerpc/include/asm/pte-hash64-64k.h index e05d26fa372..82b72207c51 100644 --- a/arch/powerpc/include/asm/pte-hash64-64k.h +++ b/arch/powerpc/include/asm/pte-hash64-64k.h @@ -47,7 +47,8 @@ * generic accessors and iterators here */ #define __real_pte(e,p) ((real_pte_t) { \ - (e), pte_val(*((p) + PTRS_PER_PTE)) }) + (e), ((e) & _PAGE_COMBO) ? \ + (pte_val(*((p) + PTRS_PER_PTE))) : 0 }) #define __rpte_to_hidx(r,index) ((pte_val((r).pte) & _PAGE_COMBO) ? \ (((r).hidx >> ((index)<<2)) & 0xf) : ((pte_val((r).pte) >> 12) & 0xf)) #define __rpte_to_pte(r) ((r).pte) -- cgit v1.2.3 From 5ba762c9bb3ce2cc11e9e111cb3c476e84b91668 Mon Sep 17 00:00:00 2001 From: Adrian Reber Date: Thu, 26 Mar 2009 02:05:42 +0000 Subject: powerpc/rtas: Fix watchdog driver temperature read functionality Using the RTAS watchdog driver to read out the temperature crashes on a PXCAB: Unable to handle kernel paging request for data at address 0xfe347b50 Faulting instruction address: 0xc00000000001af64 Oops: Kernel access of bad area, sig: 11 [#1] The wrong usage of "(void *)__pa(&temperature)" in rtas_call() is removed by using the function rtas_get_sensor() which does the right thing. Signed-off-by: Adrian Reber Acked-by: Utz Bacher Signed-off-by: Benjamin Herrenschmidt --- drivers/watchdog/wdrtas.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/watchdog/wdrtas.c b/drivers/watchdog/wdrtas.c index a4fe7a38d9b..3bde56bce63 100644 --- a/drivers/watchdog/wdrtas.c +++ b/drivers/watchdog/wdrtas.c @@ -218,16 +218,14 @@ static void wdrtas_timer_keepalive(void) */ static int wdrtas_get_temperature(void) { - long result; + int result; int temperature = 0; - result = rtas_call(wdrtas_token_get_sensor_state, 2, 2, - (void *)__pa(&temperature), - WDRTAS_THERMAL_SENSOR, 0); + result = rtas_get_sensor(WDRTAS_THERMAL_SENSOR, 0, &temperature); if (result < 0) printk(KERN_WARNING "wdrtas: reading the thermal sensor " - "faild: %li\n", result); + "failed: %i\n", result); else temperature = ((temperature * 9) / 5) + 32; /* fahrenheit */ -- cgit v1.2.3 From 789547508f22e482825f52f813b59680408ec2c7 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 23 Jun 2009 11:26:06 +0000 Subject: ide: fix ide_kill_rq() for special ide-{floppy,tape} driver requests Such requests should be failed with -EIO (like all other requests in this function) instead of being completed successfully. Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: David S. Miller --- drivers/ide/ide-io.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 93b7886a2d6..95db5f03f6a 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -152,7 +152,7 @@ void ide_kill_rq(ide_drive_t *drive, struct request *rq) if ((media == ide_floppy || media == ide_tape) && drv_req) { rq->errors = 0; - ide_complete_rq(drive, 0, blk_rq_bytes(rq)); + ide_complete_rq(drive, -EIO, blk_rq_bytes(rq)); } else { if (media == ide_tape) rq->errors = IDE_DRV_ERROR_GENERAL; -- cgit v1.2.3 From 5e955245d6cf49c5ed26c7add7392ff5a6762bf4 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 23 Jun 2009 11:27:27 +0000 Subject: ide: always kill the whole request on error * Use blk_rq_bytes() instead of obsolete ide_rq_bytes() in ide_kill_rq() and ide_floppy_do_request() for failed requests. [ bugfix part ] * Use blk_rq_bytes() instead of obsolete ide_rq_bytes() in ide_do_devset() and ide_complete_drive_reset(). Then remove ide_rq_bytes(). [ cleanup part ] Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: David S. Miller --- drivers/ide/ide-devsets.c | 2 +- drivers/ide/ide-eh.c | 2 +- drivers/ide/ide-floppy.c | 2 +- drivers/ide/ide-io.c | 14 ++------------ include/linux/ide.h | 1 - 5 files changed, 5 insertions(+), 16 deletions(-) diff --git a/drivers/ide/ide-devsets.c b/drivers/ide/ide-devsets.c index 5bf958e5b1d..1099bf7cf96 100644 --- a/drivers/ide/ide-devsets.c +++ b/drivers/ide/ide-devsets.c @@ -183,6 +183,6 @@ ide_startstop_t ide_do_devset(ide_drive_t *drive, struct request *rq) err = setfunc(drive, *(int *)&rq->cmd[1]); if (err) rq->errors = err; - ide_complete_rq(drive, err, ide_rq_bytes(rq)); + ide_complete_rq(drive, err, blk_rq_bytes(rq)); return ide_stopped; } diff --git a/drivers/ide/ide-eh.c b/drivers/ide/ide-eh.c index 2b914197961..e9abf2c3c33 100644 --- a/drivers/ide/ide-eh.c +++ b/drivers/ide/ide-eh.c @@ -149,7 +149,7 @@ static inline void ide_complete_drive_reset(ide_drive_t *drive, int err) if (rq && blk_special_request(rq) && rq->cmd[0] == REQ_DRIVE_RESET) { if (err <= 0 && rq->errors == 0) rq->errors = -EIO; - ide_complete_rq(drive, err ? err : 0, ide_rq_bytes(rq)); + ide_complete_rq(drive, err ? err : 0, blk_rq_bytes(rq)); } } diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c index 8b3f204f7d7..fefbdfc8db0 100644 --- a/drivers/ide/ide-floppy.c +++ b/drivers/ide/ide-floppy.c @@ -293,7 +293,7 @@ out_end: drive->failed_pc = NULL; if (blk_fs_request(rq) == 0 && rq->errors == 0) rq->errors = -EIO; - ide_complete_rq(drive, -EIO, ide_rq_bytes(rq)); + ide_complete_rq(drive, -EIO, blk_rq_bytes(rq)); return ide_stopped; } diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 95db5f03f6a..d5f3c77bead 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -112,16 +112,6 @@ void ide_complete_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat, u8 err) } } -/* obsolete, blk_rq_bytes() should be used instead */ -unsigned int ide_rq_bytes(struct request *rq) -{ - if (blk_pc_request(rq)) - return blk_rq_bytes(rq); - else - return blk_rq_cur_sectors(rq) << 9; -} -EXPORT_SYMBOL_GPL(ide_rq_bytes); - int ide_complete_rq(ide_drive_t *drive, int error, unsigned int nr_bytes) { ide_hwif_t *hwif = drive->hwif; @@ -152,14 +142,14 @@ void ide_kill_rq(ide_drive_t *drive, struct request *rq) if ((media == ide_floppy || media == ide_tape) && drv_req) { rq->errors = 0; - ide_complete_rq(drive, -EIO, blk_rq_bytes(rq)); } else { if (media == ide_tape) rq->errors = IDE_DRV_ERROR_GENERAL; else if (blk_fs_request(rq) == 0 && rq->errors == 0) rq->errors = -EIO; - ide_complete_rq(drive, -EIO, ide_rq_bytes(rq)); } + + ide_complete_rq(drive, -EIO, blk_rq_bytes(rq)); } static void ide_tf_set_specify_cmd(ide_drive_t *drive, struct ide_taskfile *tf) diff --git a/include/linux/ide.h b/include/linux/ide.h index cf1f3888067..c6af7c44d46 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -1062,7 +1062,6 @@ int generic_ide_ioctl(ide_drive_t *, struct block_device *, unsigned, unsigned l extern int ide_vlb_clk; extern int ide_pci_clk; -unsigned int ide_rq_bytes(struct request *); int ide_end_rq(ide_drive_t *, struct request *, int, unsigned int); void ide_kill_rq(ide_drive_t *, struct request *); -- cgit v1.2.3 From a80cad950f2a562e60db1869dd29bc007c5a4b66 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 26 Jun 2009 07:05:39 +0000 Subject: sh: ms7724se: Add sh_eth support Signed-off-by: Kuninori Morimoto Signed-off-by: Paul Mundt --- arch/sh/boards/mach-se/7724/setup.c | 106 +++++++++++++++++++++++++++++++++- arch/sh/include/mach-se/mach/se7724.h | 5 ++ 2 files changed, 109 insertions(+), 2 deletions(-) diff --git a/arch/sh/boards/mach-se/7724/setup.c b/arch/sh/boards/mach-se/7724/setup.c index 9cd04bd558b..21d18005fb4 100644 --- a/arch/sh/boards/mach-se/7724/setup.c +++ b/arch/sh/boards/mach-se/7724/setup.c @@ -23,6 +23,8 @@ #include #include #include +#include +#include #include #include #include @@ -272,6 +274,34 @@ static struct platform_device keysc_device = { }, }; +/* SH Eth */ +static struct resource sh_eth_resources[] = { + [0] = { + .start = SH_ETH_ADDR, + .end = SH_ETH_ADDR + 0x1FC, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = 91, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; + +struct sh_eth_plat_data sh_eth_plat = { + .phy = 0x1f, /* SMSC LAN8187 */ + .edmac_endian = EDMAC_LITTLE_ENDIAN, +}; + +static struct platform_device sh_eth_device = { + .name = "sh-eth", + .id = 0, + .dev = { + .platform_data = &sh_eth_plat, + }, + .num_resources = ARRAY_SIZE(sh_eth_resources), + .resource = sh_eth_resources, +}; + static struct platform_device *ms7724se_devices[] __initdata = { &heartbeat_device, &smc91x_eth_device, @@ -280,8 +310,57 @@ static struct platform_device *ms7724se_devices[] __initdata = { &ceu0_device, &ceu1_device, &keysc_device, + &sh_eth_device, }; +#define EEPROM_OP 0xBA206000 +#define EEPROM_ADR 0xBA206004 +#define EEPROM_DATA 0xBA20600C +#define EEPROM_STAT 0xBA206010 +#define EEPROM_STRT 0xBA206014 +static int __init sh_eth_is_eeprom_ready(void) +{ + int t = 10000; + + while (t--) { + if (!ctrl_inw(EEPROM_STAT)) + return 1; + cpu_relax(); + } + + printk(KERN_ERR "ms7724se can not access to eeprom\n"); + return 0; +} + +static void __init sh_eth_init(void) +{ + int i; + u16 mac[3]; + + /* check EEPROM status */ + if (!sh_eth_is_eeprom_ready()) + return; + + /* read MAC addr from EEPROM */ + for (i = 0 ; i < 3 ; i++) { + ctrl_outw(0x0, EEPROM_OP); /* read */ + ctrl_outw(i*2, EEPROM_ADR); + ctrl_outw(0x1, EEPROM_STRT); + if (!sh_eth_is_eeprom_ready()) + return; + + mac[i] = ctrl_inw(EEPROM_DATA); + mac[i] = ((mac[i] & 0xFF) << 8) | (mac[i] >> 8); /* swap */ + } + + /* reset sh-eth */ + ctrl_outl(0x1, SH_ETH_ADDR + 0x0); + + /* set MAC addr */ + ctrl_outl(((mac[0] << 16) | (mac[1])), SH_ETH_MAHR); + ctrl_outl((mac[2]), SH_ETH_MALR); +} + #define SW4140 0xBA201000 #define FPGA_OUT 0xBA200400 #define PORT_HIZA 0xA4050158 @@ -302,7 +381,8 @@ static int __init devices_setup(void) ctrl_outw(ctrl_inw(FPGA_OUT) & ~((1 << 1) | /* LAN */ (1 << 6) | /* VIDEO DAC */ - (1 << 12)), /* USB0 */ + (1 << 12) | /* USB0 */ + (1 << 14)), /* RMII */ FPGA_OUT); /* enable IRQ 0,1,2 */ @@ -404,6 +484,28 @@ static int __init devices_setup(void) gpio_request(GPIO_FN_KEYOUT1, NULL); gpio_request(GPIO_FN_KEYOUT0, NULL); + /* + * enable SH-Eth + * + * please remove J33 pin from your board !! + * + * ms7724 board should not use GPIO_FN_LNKSTA pin + * So, This time PTX5 is set to input pin + */ + gpio_request(GPIO_FN_RMII_RXD0, NULL); + gpio_request(GPIO_FN_RMII_RXD1, NULL); + gpio_request(GPIO_FN_RMII_TXD0, NULL); + gpio_request(GPIO_FN_RMII_TXD1, NULL); + gpio_request(GPIO_FN_RMII_REF_CLK, NULL); + gpio_request(GPIO_FN_RMII_TX_EN, NULL); + gpio_request(GPIO_FN_RMII_RX_ER, NULL); + gpio_request(GPIO_FN_RMII_CRS_DV, NULL); + gpio_request(GPIO_FN_MDIO, NULL); + gpio_request(GPIO_FN_MDC, NULL); + gpio_request(GPIO_PTX5, NULL); + gpio_direction_input(GPIO_PTX5); + sh_eth_init(); + if (sw & SW41_B) { /* SVGA */ lcdc_info.ch[0].lcd_cfg.xres = 800; @@ -437,7 +539,7 @@ static int __init devices_setup(void) } return platform_add_devices(ms7724se_devices, - ARRAY_SIZE(ms7724se_devices)); + ARRAY_SIZE(ms7724se_devices)); } device_initcall(devices_setup); diff --git a/arch/sh/include/mach-se/mach/se7724.h b/arch/sh/include/mach-se/mach/se7724.h index 74164b60d0d..29514a39d0f 100644 --- a/arch/sh/include/mach-se/mach/se7724.h +++ b/arch/sh/include/mach-se/mach/se7724.h @@ -20,6 +20,11 @@ */ #include +/* SH Eth */ +#define SH_ETH_ADDR (0xA4600000) +#define SH_ETH_MAHR (SH_ETH_ADDR + 0x1C0) +#define SH_ETH_MALR (SH_ETH_ADDR + 0x1C8) + #define PA_LED (0xba203000) /* 8bit LED */ #define IRQ_MODE (0xba200010) #define IRQ0_SR (0xba200014) -- cgit v1.2.3 From 0296e4254f3318e0dcad9706fa1daf8e5addc1e9 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Fri, 26 Jun 2009 11:15:37 +0800 Subject: ftrace: Fix the output of profile The first entry of the ftrace profile was always skipped when reading trace_stat/functionX. Signed-off-by: Li Zefan Cc: Steven Rostedt Cc: Frederic Weisbecker LKML-Reference: <4A443D59.4080307@cn.fujitsu.com> Signed-off-by: Ingo Molnar --- kernel/trace/ftrace.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 71a52c17214..f3716bf04df 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -291,7 +291,9 @@ function_stat_next(void *v, int idx) pg = (struct ftrace_profile_page *)((unsigned long)rec & PAGE_MASK); again: - rec++; + if (idx != 0) + rec++; + if ((void *)rec >= (void *)&pg->records[pg->index]) { pg = pg->next; if (!pg) -- cgit v1.2.3 From 7ed9f7e5db58c6e8c2b4b738a75d5dcd8e17aad5 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Thu, 25 Jun 2009 12:31:37 -0700 Subject: fix RCU-callback-after-kmem_cache_destroy problem in sl[aou]b Jesper noted that kmem_cache_destroy() invokes synchronize_rcu() rather than rcu_barrier() in the SLAB_DESTROY_BY_RCU case, which could result in RCU callbacks accessing a kmem_cache after it had been destroyed. Cc: Acked-by: Matt Mackall Reported-by: Jesper Dangaard Brouer Signed-off-by: Paul E. McKenney Signed-off-by: Pekka Enberg --- mm/slab.c | 2 +- mm/slob.c | 2 ++ mm/slub.c | 2 ++ 3 files changed, 5 insertions(+), 1 deletion(-) diff --git a/mm/slab.c b/mm/slab.c index e74a16e4ced..5241b6598ba 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -2547,7 +2547,7 @@ void kmem_cache_destroy(struct kmem_cache *cachep) } if (unlikely(cachep->flags & SLAB_DESTROY_BY_RCU)) - synchronize_rcu(); + rcu_barrier(); __kmem_cache_destroy(cachep); mutex_unlock(&cache_chain_mutex); diff --git a/mm/slob.c b/mm/slob.c index c78742defdc..9641da3d5e5 100644 --- a/mm/slob.c +++ b/mm/slob.c @@ -595,6 +595,8 @@ EXPORT_SYMBOL(kmem_cache_create); void kmem_cache_destroy(struct kmem_cache *c) { kmemleak_free(c); + if (c->flags & SLAB_DESTROY_BY_RCU) + rcu_barrier(); slob_free(c, sizeof(struct kmem_cache)); } EXPORT_SYMBOL(kmem_cache_destroy); diff --git a/mm/slub.c b/mm/slub.c index 819f056b39c..a9201d83178 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -2595,6 +2595,8 @@ static inline int kmem_cache_close(struct kmem_cache *s) */ void kmem_cache_destroy(struct kmem_cache *s) { + if (s->flags & SLAB_DESTROY_BY_RCU) + rcu_barrier(); down_write(&slub_lock); s->refcount--; if (!s->refcount) { -- cgit v1.2.3 From 7e25a2422987a37729706b18583d177966919d2a Mon Sep 17 00:00:00 2001 From: Chris Wright Date: Thu, 25 Jun 2009 18:52:05 -0700 Subject: intel-iommu: fix Identity Mapping to be arch independent Drop the e820 scanning and use existing function for finding valid RAM regions to add to 1:1 mapping. Signed-off-by: Chris Wright Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 19 +++++-------------- 1 file changed, 5 insertions(+), 14 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index e53eacd75c8..420afa88728 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -39,7 +39,6 @@ #include #include #include -#include #include "pci.h" #define ROOT_SIZE VTD_PAGE_SIZE @@ -1908,7 +1907,6 @@ static inline int iommu_prepare_rmrr_dev(struct dmar_rmrr_unit *rmrr, rmrr->end_address + 1); } -#ifdef CONFIG_DMAR_GFX_WA struct iommu_prepare_data { struct pci_dev *pdev; int ret; @@ -1943,6 +1941,7 @@ static int __init iommu_prepare_with_active_regions(struct pci_dev *pdev) return data.ret; } +#ifdef CONFIG_DMAR_GFX_WA static void __init iommu_prepare_gfx_mapping(void) { struct pci_dev *pdev = NULL; @@ -2081,7 +2080,6 @@ static int domain_add_dev_info(struct dmar_domain *domain, static int iommu_prepare_static_identity_mapping(void) { - int i; struct pci_dev *pdev = NULL; int ret; @@ -2091,17 +2089,10 @@ static int iommu_prepare_static_identity_mapping(void) printk(KERN_INFO "IOMMU: Setting identity map:\n"); for_each_pci_dev(pdev) { - for (i = 0; i < e820.nr_map; i++) { - struct e820entry *ei = &e820.map[i]; - - if (ei->type == E820_RAM) { - ret = iommu_prepare_identity_map(pdev, - ei->addr, ei->addr + ei->size); - if (ret) { - printk(KERN_INFO "1:1 mapping to one domain failed.\n"); - return -EFAULT; - } - } + ret = iommu_prepare_with_active_regions(pdev); + if (ret) { + printk(KERN_INFO "1:1 mapping to one domain failed.\n"); + return -EFAULT; } ret = domain_add_dev_info(si_domain, pdev); if (ret) -- cgit v1.2.3 From 584fcff428bde3b9985ba21498764e9dba2fd3ce Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Wed, 10 Jun 2009 18:29:54 +0200 Subject: amd64_edac: check only ECC bit in amd64_determine_edac_cap Checking whether the machine is using ECC enabled DRAM is done through testing the DimmEccEn bit in the DRAM Cfg Low register (F2x[1,0]90). Do that instead of testing all bits from the DimmEccEn upwards. Also, remove mci->edac_cap assignment and use value returned from amd64_determine_edac_cap(). Signed-off-by: Borislav Petkov --- drivers/edac/amd64_edac.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index c36bf40568c..3b76605330e 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -754,13 +754,13 @@ static void amd64_cpu_display_info(struct amd64_pvt *pvt) static enum edac_type amd64_determine_edac_cap(struct amd64_pvt *pvt) { int bit; - enum dev_type edac_cap = EDAC_NONE; + enum dev_type edac_cap = EDAC_FLAG_NONE; bit = (boot_cpu_data.x86 > 0xf || pvt->ext_model >= OPTERON_CPU_REV_F) ? 19 : 17; - if (pvt->dclr0 >> BIT(bit)) + if (pvt->dclr0 & BIT(bit)) edac_cap = EDAC_FLAG_SECDED; return edac_cap; @@ -3006,7 +3006,6 @@ static void amd64_setup_mci_misc_attributes(struct mem_ctl_info *mci) mci->mtype_cap = MEM_FLAG_DDR2 | MEM_FLAG_RDDR2; mci->edac_ctl_cap = EDAC_FLAG_NONE; - mci->edac_cap = EDAC_FLAG_NONE; if (pvt->nbcap & K8_NBCAP_SECDED) mci->edac_ctl_cap |= EDAC_FLAG_SECDED; -- cgit v1.2.3 From 30c875cbc1836a03a1acc6c998fa8a04f29f8f73 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Mon, 22 Jun 2009 19:42:24 +0200 Subject: amd64_edac: fix ecc_enable_override handling amd64_check_ecc_enabled() returns non-zero status when ECC checking/correcting is disabled and this fails further loading of the driver even when 'ecc_enable_override' boot param is used. Fix that by clearing return status in that case. Signed-off-by: Borislav Petkov --- drivers/edac/amd64_edac.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index 3b76605330e..8497963a61f 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -2966,7 +2966,12 @@ static int amd64_check_ecc_enabled(struct amd64_pvt *pvt) " Use of the override can cause " "unknown side effects.\n"); ret = -ENODEV; - } + } else + /* + * enable further driver loading if ECC enable is + * overridden. + */ + ret = 0; } else { amd64_printk(KERN_INFO, "ECC is enabled by BIOS, Proceeding " -- cgit v1.2.3 From 37da045067b4e923190662e21029005ea53bfaa1 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Wed, 10 Jun 2009 17:36:57 +0200 Subject: amd64_edac: misc small cleanups - cleanup debug calls - shorten function names - cleanup error exit paths Signed-off-by: Borislav Petkov --- drivers/edac/amd64_edac.c | 13 +++++++------ drivers/edac/amd64_edac.h | 2 +- 2 files changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index 8497963a61f..858fe603722 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -1269,7 +1269,7 @@ static int f10_early_channel_count(struct amd64_pvt *pvt) if (channels == 0) channels = 1; - debugf0("DIMM count= %d\n", channels); + debugf0("MCT channel count: %d\n", channels); return channels; @@ -3056,7 +3056,7 @@ static int amd64_probe_one_instance(struct pci_dev *dram_f2_ctl, if (!pvt) goto err_exit; - pvt->mc_node_id = get_mc_node_id_from_pdev(dram_f2_ctl); + pvt->mc_node_id = get_node_id(dram_f2_ctl); pvt->dram_f2_ctl = dram_f2_ctl; pvt->ext_model = boot_cpu_data.x86_model >> 4; @@ -3183,8 +3183,7 @@ static int __devinit amd64_init_one_instance(struct pci_dev *pdev, { int ret = 0; - debugf0("(MC node=%d,mc_type='%s')\n", - get_mc_node_id_from_pdev(pdev), + debugf0("(MC node=%d,mc_type='%s')\n", get_node_id(pdev), get_amd_family_name(mc_type->driver_data)); ret = pci_enable_device(pdev); @@ -3323,15 +3322,17 @@ static int __init amd64_edac_init(void) err = amd64_init_2nd_stage(pvt_lookup[nb]); if (err) - goto err_exit; + goto err_2nd_stage; } amd64_setup_pci_device(); return 0; +err_2nd_stage: + debugf0("2nd stage failed\n"); + err_exit: - debugf0("'finish_setup' stage failed\n"); pci_unregister_driver(&amd64_pci_driver); return err; diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h index a159957e167..ba73015af8e 100644 --- a/drivers/edac/amd64_edac.h +++ b/drivers/edac/amd64_edac.h @@ -444,7 +444,7 @@ enum { #define K8_MSR_MC4ADDR 0x0412 /* AMD sets the first MC device at device ID 0x18. */ -static inline int get_mc_node_id_from_pdev(struct pci_dev *pdev) +static inline int get_node_id(struct pci_dev *pdev) { return PCI_SLOT(pdev->devfn) - 0x18; } -- cgit v1.2.3 From 8cb76d99d715741637b6d0884f389e17e9cb05d2 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Fri, 26 Jun 2009 16:28:00 +0200 Subject: perf_counter tools: Prepare a small callchain framework We plan to display the callchains depending on some user-configurable parameters. To gather the callchains stats from the recorded stream in a fast way, this patch introduces an ad hoc radix tree adapted for callchains and also a rbtree to sort these callchains once we have gathered every events from the stream. Signed-off-by: Frederic Weisbecker Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras LKML-Reference: <1246026481-8314-2-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar --- tools/perf/Makefile | 1 + tools/perf/builtin-report.c | 5 -- tools/perf/perf.h | 5 ++ tools/perf/util/callchain.c | 174 ++++++++++++++++++++++++++++++++++++++++++++ tools/perf/util/callchain.h | 33 +++++++++ 5 files changed, 213 insertions(+), 5 deletions(-) create mode 100644 tools/perf/util/callchain.c create mode 100644 tools/perf/util/callchain.h diff --git a/tools/perf/Makefile b/tools/perf/Makefile index d3887ed51a6..1c1296d8a64 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -329,6 +329,7 @@ LIB_OBJS += util/symbol.o LIB_OBJS += util/color.o LIB_OBJS += util/pager.o LIB_OBJS += util/header.o +LIB_OBJS += util/callchain.o BUILTIN_OBJS += builtin-annotate.o BUILTIN_OBJS += builtin-help.o diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 681c2233f88..28d1cb2127e 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -62,11 +62,6 @@ struct ip_event { unsigned char __more_data[]; }; -struct ip_callchain { - u64 nr; - u64 ips[0]; -}; - struct mmap_event { struct perf_event_header header; u32 pid, tid; diff --git a/tools/perf/perf.h b/tools/perf/perf.h index 16c84fd73c8..a49842b69a5 100644 --- a/tools/perf/perf.h +++ b/tools/perf/perf.h @@ -66,4 +66,9 @@ sys_perf_counter_open(struct perf_counter_attr *attr, #define MAX_COUNTERS 256 #define MAX_NR_CPUS 256 +struct ip_callchain { + u64 nr; + u64 ips[0]; +}; + #endif diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c new file mode 100644 index 00000000000..ad3c2857896 --- /dev/null +++ b/tools/perf/util/callchain.c @@ -0,0 +1,174 @@ +/* + * Copyright (C) 2009, Frederic Weisbecker + * + * Handle the callchains from the stream in an ad-hoc radix tree and then + * sort them in an rbtree. + * + */ + +#include +#include +#include +#include + +#include "callchain.h" + + +static void rb_insert_callchain(struct rb_root *root, struct callchain_node *chain) +{ + struct rb_node **p = &root->rb_node; + struct rb_node *parent = NULL; + struct callchain_node *rnode; + + while (*p) { + parent = *p; + rnode = rb_entry(parent, struct callchain_node, rb_node); + + if (rnode->hit < chain->hit) + p = &(*p)->rb_left; + else + p = &(*p)->rb_right; + } + + rb_link_node(&chain->rb_node, parent, p); + rb_insert_color(&chain->rb_node, root); +} + +/* + * Once we get every callchains from the stream, we can now + * sort them by hit + */ +void sort_chain_to_rbtree(struct rb_root *rb_root, struct callchain_node *node) +{ + struct callchain_node *child; + + list_for_each_entry(child, &node->children, brothers) + sort_chain_to_rbtree(rb_root, child); + + if (node->hit) + rb_insert_callchain(rb_root, node); +} + +static struct callchain_node *create_child(struct callchain_node *parent) +{ + struct callchain_node *new; + + new = malloc(sizeof(*new)); + if (!new) { + perror("not enough memory to create child for code path tree"); + return NULL; + } + new->parent = parent; + INIT_LIST_HEAD(&new->children); + INIT_LIST_HEAD(&new->val); + list_add_tail(&new->brothers, &parent->children); + + return new; +} + +static void +fill_node(struct callchain_node *node, struct ip_callchain *chain, int start) +{ + int i; + + for (i = start; i < chain->nr; i++) { + struct callchain_list *call; + + call = malloc(sizeof(*chain)); + if (!call) { + perror("not enough memory for the code path tree"); + return; + } + call->ip = chain->ips[i]; + list_add_tail(&call->list, &node->val); + } + node->val_nr = i - start; +} + +static void add_child(struct callchain_node *parent, struct ip_callchain *chain) +{ + struct callchain_node *new; + + new = create_child(parent); + fill_node(new, chain, parent->val_nr); + + new->hit = 1; +} + +static void +split_add_child(struct callchain_node *parent, struct ip_callchain *chain, + struct callchain_list *to_split, int idx) +{ + struct callchain_node *new; + + /* split */ + new = create_child(parent); + list_move_tail(&to_split->list, &new->val); + new->hit = parent->hit; + parent->hit = 0; + parent->val_nr = idx; + + /* create the new one */ + add_child(parent, chain); +} + +static int +__append_chain(struct callchain_node *root, struct ip_callchain *chain, + int start); + +static int +__append_chain_children(struct callchain_node *root, struct ip_callchain *chain) +{ + struct callchain_node *rnode; + + /* lookup in childrens */ + list_for_each_entry(rnode, &root->children, brothers) { + int ret = __append_chain(rnode, chain, root->val_nr); + if (!ret) + return 0; + } + return -1; +} + +static int +__append_chain(struct callchain_node *root, struct ip_callchain *chain, + int start) +{ + struct callchain_list *cnode; + int i = start; + bool found = false; + + /* lookup in the current node */ + list_for_each_entry(cnode, &root->val, list) { + if (cnode->ip != chain->ips[i++]) + break; + if (!found) + found = true; + if (i == chain->nr) + break; + } + + /* matches not, relay on the parent */ + if (!found) + return -1; + + /* we match only a part of the node. Split it and add the new chain */ + if (i < root->val_nr) { + split_add_child(root, chain, cnode, i); + return 0; + } + + /* we match 100% of the path, increment the hit */ + if (i == root->val_nr) { + root->hit++; + return 0; + } + + return __append_chain_children(root, chain); +} + +void append_chain(struct callchain_node *root, struct ip_callchain *chain) +{ + if (__append_chain_children(root, chain) == -1) + add_child(root, chain); +} diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h new file mode 100644 index 00000000000..fa1cd2f71fd --- /dev/null +++ b/tools/perf/util/callchain.h @@ -0,0 +1,33 @@ +#ifndef __PERF_CALLCHAIN_H +#define __PERF_CALLCHAIN_H + +#include "../perf.h" +#include "list.h" +#include "rbtree.h" + + +struct callchain_node { + struct callchain_node *parent; + struct list_head brothers; + struct list_head children; + struct list_head val; + struct rb_node rb_node; + int val_nr; + int hit; +}; + +struct callchain_list { + unsigned long ip; + struct list_head list; +}; + +static inline void callchain_init(struct callchain_node *node) +{ + INIT_LIST_HEAD(&node->brothers); + INIT_LIST_HEAD(&node->children); + INIT_LIST_HEAD(&node->val); +} + +void append_chain(struct callchain_node *root, struct ip_callchain *chain); +void sort_chain_to_rbtree(struct rb_root *rb_root, struct callchain_node *node); +#endif -- cgit v1.2.3 From f55c555226b1010b249730ec6b232e5470286950 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Fri, 26 Jun 2009 16:28:01 +0200 Subject: perf report: Print sorted callchains per histogram entries Use the newly created callchains radix tree to gather the chains stats from the recorded events and then print the callchains for all of them, sorted by hits, using the "-c" parameter with perf report. Example: 66.15% [k] atm_clip_exit 63.08% 0xffffffffffffff80 0xffffffff810196a8 0xffffffff810c14c8 0xffffffff8101a79c 0xffffffff810194f3 0xffffffff8106ab7f 0xffffffff8106abe5 0xffffffff8106acde 0xffffffff8100d94b 0xffffffff8153e7ea [...] 1.54% 0xffffffffffffff80 0xffffffff810196a8 0xffffffff810c14c8 0xffffffff8101a79c [...] Symbols are not yet resolved. Signed-off-by: Frederic Weisbecker Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras LKML-Reference: <1246026481-8314-3-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar --- tools/perf/builtin-report.c | 82 +++++++++++++++++++++++++++++++++++++++------ 1 file changed, 71 insertions(+), 11 deletions(-) diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 28d1cb2127e..ed391db9e0f 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -15,6 +15,7 @@ #include "util/rbtree.h" #include "util/symbol.h" #include "util/string.h" +#include "util/callchain.h" #include "perf.h" #include "util/header.h" @@ -52,6 +53,7 @@ static char *parent_pattern = default_parent_pattern; static regex_t parent_regex; static int exclude_other = 1; +static int callchain; static u64 sample_type; @@ -488,17 +490,19 @@ static size_t threads__fprintf(FILE *fp) static struct rb_root hist; struct hist_entry { - struct rb_node rb_node; - - struct thread *thread; - struct map *map; - struct dso *dso; - struct symbol *sym; - struct symbol *parent; - u64 ip; - char level; - - u64 count; + struct rb_node rb_node; + + struct thread *thread; + struct map *map; + struct dso *dso; + struct symbol *sym; + struct symbol *parent; + u64 ip; + char level; + struct callchain_node callchain; + struct rb_root sorted_chain; + + u64 count; }; /* @@ -768,6 +772,48 @@ hist_entry__collapse(struct hist_entry *left, struct hist_entry *right) return cmp; } +static size_t +callchain__fprintf(FILE *fp, struct callchain_node *self, u64 total_samples) +{ + struct callchain_list *chain; + size_t ret = 0; + + if (!self) + return 0; + + ret += callchain__fprintf(fp, self->parent, total_samples); + + + list_for_each_entry(chain, &self->val, list) + ret += fprintf(fp, " %p\n", (void *)chain->ip); + + return ret; +} + +static size_t +hist_entry_callchain__fprintf(FILE *fp, struct hist_entry *self, + u64 total_samples) +{ + struct rb_node *rb_node; + struct callchain_node *chain; + size_t ret = 0; + + rb_node = rb_first(&self->sorted_chain); + while (rb_node) { + double percent; + + chain = rb_entry(rb_node, struct callchain_node, rb_node); + percent = chain->hit * 100.0 / total_samples; + ret += fprintf(fp, " %6.2f%%\n", percent); + ret += callchain__fprintf(fp, chain, total_samples); + ret += fprintf(fp, "\n"); + rb_node = rb_next(rb_node); + } + + return ret; +} + + static size_t hist_entry__fprintf(FILE *fp, struct hist_entry *self, u64 total_samples) { @@ -808,6 +854,9 @@ hist_entry__fprintf(FILE *fp, struct hist_entry *self, u64 total_samples) ret += fprintf(fp, "\n"); + if (callchain) + hist_entry_callchain__fprintf(fp, self, total_samples); + return ret; } @@ -892,6 +941,7 @@ hist_entry__add(struct thread *thread, struct map *map, struct dso *dso, .level = level, .count = count, .parent = NULL, + .sorted_chain = RB_ROOT }; int cmp; @@ -934,6 +984,8 @@ hist_entry__add(struct thread *thread, struct map *map, struct dso *dso, if (!cmp) { he->count += count; + if (callchain) + append_chain(&he->callchain, chain); return 0; } @@ -947,6 +999,10 @@ hist_entry__add(struct thread *thread, struct map *map, struct dso *dso, if (!he) return -ENOMEM; *he = entry; + if (callchain) { + callchain_init(&he->callchain); + append_chain(&he->callchain, chain); + } rb_link_node(&he->rb_node, parent, p); rb_insert_color(&he->rb_node, &hist); @@ -1023,6 +1079,9 @@ static void output__insert_entry(struct hist_entry *he) struct rb_node *parent = NULL; struct hist_entry *iter; + if (callchain) + sort_chain_to_rbtree(&he->sorted_chain, &he->callchain); + while (*p != NULL) { parent = *p; iter = rb_entry(parent, struct hist_entry, rb_node); @@ -1599,6 +1658,7 @@ static const struct option options[] = { "regex filter to identify parent, see: '--sort parent'"), OPT_BOOLEAN('x', "exclude-other", &exclude_other, "Only display entries with parent-match"), + OPT_BOOLEAN('c', "callchain", &callchain, "Display callchains"), OPT_END() }; -- cgit v1.2.3 From 39562e783928e3ea9ee2cbce99a756ab48d3c06a Mon Sep 17 00:00:00 2001 From: Christof Schmitt Date: Fri, 26 Jun 2009 16:30:43 +0200 Subject: [SCSI] FC transport: Locking fix for common-code FC pass-through patch Fix this: ------------[ cut here ]------------ Badness at block/blk-core.c:244 CPU: 0 Tainted: G W 2.6.31-rc1-00004-gd3a263a #3 Process zfcp_wq (pid: 901, task: 000000002fb7a038, ksp: 000000002f02bc78) Krnl PSW : 0704300180000000 00000000002141ba (blk_remove_plug+0xb2/0xb8) R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:3 PM:0 EA:3 Krnl GPRS: 0000000000000001 0000000000000001 0000000022811440 0000000022811798 000000000027ff4e 0000000000000000 0000000000000000 000000002f00f000 070000000006a0f4 000000002af70000 000000002af2a800 00000000228d1c00 0000000022811440 000000000050c708 000000002f02bca8 000000002f02bc80 Krnl Code: 00000000002141b0: b9140022 lgfr %r2,%r2 00000000002141b4: 07fe bcr 15,%r14 00000000002141b6: a7f40001 brc 15,2141b8 >00000000002141ba: a7f4ffbe brc 15,214136 00000000002141be: 0707 bcr 0,%r7 00000000002141c0: ebaff0680024 stmg %r10,%r15,104(%r15) 00000000002141c6: c0d00017c2a9 larl %r13,50c718 00000000002141cc: a7f13fc0 tmll %r15,16320 Call Trace: ([<000000000050e7d8>] C.272.16122+0x88/0x110) [<00000000002141ec>] __blk_run_queue+0x2c/0x154 [<000000000028013a>] fc_remote_port_add+0x85e/0x95c [<000000000037596e>] zfcp_scsi_rport_work+0xe6/0x148 [<000000000006908c>] worker_thread+0x25c/0x318 [<000000000006f10c>] kthread+0x94/0x9c [<000000000001c2b2>] kernel_thread_starter+0x6/0xc [<000000000001c2ac>] kernel_thread_starter+0x0/0xc INFO: lockdep is turned off. Last Breaking-Event-Address: [<00000000002141b6>] blk_remove_plug+0xae/0xb8 The FC pass-through support triggers the WARN_ON(!irqs_disabled()) in blk_plug_device. Since blk_plug_device requires being called with disabled interrupts, use spin_lock_irqsave in fc_bsg_goose_queue to disable the interrupts before calling into the block layer. Signed-off-by: Christof Schmitt Acked-by: James Smart Signed-off-by: James Bottomley --- drivers/scsi/scsi_transport_fc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index 2eee9e6e4fe..292c02f810d 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -3670,13 +3670,14 @@ static void fc_bsg_goose_queue(struct fc_rport *rport) { int flagset; + unsigned long flags; if (!rport->rqst_q) return; get_device(&rport->dev); - spin_lock(rport->rqst_q->queue_lock); + spin_lock_irqsave(rport->rqst_q->queue_lock, flags); flagset = test_bit(QUEUE_FLAG_REENTER, &rport->rqst_q->queue_flags) && !test_bit(QUEUE_FLAG_REENTER, &rport->rqst_q->queue_flags); if (flagset) @@ -3684,7 +3685,7 @@ fc_bsg_goose_queue(struct fc_rport *rport) __blk_run_queue(rport->rqst_q); if (flagset) queue_flag_clear(QUEUE_FLAG_REENTER, rport->rqst_q); - spin_unlock(rport->rqst_q->queue_lock); + spin_unlock_irqrestore(rport->rqst_q->queue_lock, flags); put_device(&rport->dev); } -- cgit v1.2.3 From 19d2e755436054dfc2be640bffc32e427c37ac3d Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Fri, 26 Jun 2009 13:10:23 +0200 Subject: perf_counter: Complete counter swap Complete the counter swap by indeed switching the times too and updating the userpage after modifying the counter values. Signed-off-by: Peter Zijlstra Cc: Paul Mackerras LKML-Reference: <1246014623.31755.195.camel@twins> Signed-off-by: Ingo Molnar --- kernel/perf_counter.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index f2f23269658..66ab1e9d129 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -1048,9 +1048,14 @@ static void __perf_counter_sync_stat(struct perf_counter *counter, value = atomic64_xchg(&counter->count, value); atomic64_set(&next_counter->count, value); + swap(counter->total_time_enabled, next_counter->total_time_enabled); + swap(counter->total_time_running, next_counter->total_time_running); + /* - * XXX also sync time_enabled and time_running ? + * Since we swizzled the values, update the user visible data too. */ + perf_counter_update_userpage(counter); + perf_counter_update_userpage(next_counter); } #define list_next_entry(pos, member) \ -- cgit v1.2.3 From e0a2a1601bec01243bcad44414d06f59dae2eedb Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Fri, 26 Jun 2009 17:38:25 +0100 Subject: kmemleak: Enable task stacks scanning by default This is to reduce the number of false positives reported. Signed-off-by: Catalin Marinas --- Documentation/kmemleak.txt | 8 ++++---- mm/kmemleak.c | 2 +- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/Documentation/kmemleak.txt b/Documentation/kmemleak.txt index f655308064d..9426e94f291 100644 --- a/Documentation/kmemleak.txt +++ b/Documentation/kmemleak.txt @@ -31,12 +31,12 @@ Memory scanning parameters can be modified at run-time by writing to the /sys/kernel/debug/kmemleak file. The following parameters are supported: off - disable kmemleak (irreversible) - stack=on - enable the task stacks scanning + stack=on - enable the task stacks scanning (default) stack=off - disable the tasks stacks scanning - scan=on - start the automatic memory scanning thread + scan=on - start the automatic memory scanning thread (default) scan=off - stop the automatic memory scanning thread - scan= - set the automatic memory scanning period in seconds (0 - to disable it) + scan= - set the automatic memory scanning period in seconds + (default 600, 0 to stop the automatic scanning) Kmemleak can also be disabled at boot-time by passing "kmemleak=off" on the kernel command line. diff --git a/mm/kmemleak.c b/mm/kmemleak.c index 17096d1b59b..a38418a95d3 100644 --- a/mm/kmemleak.c +++ b/mm/kmemleak.c @@ -194,7 +194,7 @@ static unsigned long jiffies_min_age; /* delay between automatic memory scannings */ static signed long jiffies_scan_wait; /* enables or disables the task stacks scanning */ -static int kmemleak_stack_scan; +static int kmemleak_stack_scan = 1; /* mutex protecting the memory scanning */ static DEFINE_MUTEX(scan_mutex); /* mutex protecting the access to the /sys/kernel/debug/kmemleak file */ -- cgit v1.2.3 From bab4a34afc301fdb81b6ea0e3098d96fc356e03a Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Fri, 26 Jun 2009 17:38:26 +0100 Subject: kmemleak: Simplify the reports logged by the scanning thread Because of false positives, the memory scanning thread may print too much information. This patch changes the scanning thread to only print the number of newly suspected leaks. Further information can be read from the /sys/kernel/debug/kmemleak file. Signed-off-by: Catalin Marinas --- Documentation/kmemleak.txt | 6 ++--- mm/kmemleak.c | 61 ++++++++++++---------------------------------- 2 files changed, 19 insertions(+), 48 deletions(-) diff --git a/Documentation/kmemleak.txt b/Documentation/kmemleak.txt index 9426e94f291..c06f7ba6499 100644 --- a/Documentation/kmemleak.txt +++ b/Documentation/kmemleak.txt @@ -16,9 +16,9 @@ Usage ----- CONFIG_DEBUG_KMEMLEAK in "Kernel hacking" has to be enabled. A kernel -thread scans the memory every 10 minutes (by default) and prints any new -unreferenced objects found. To trigger an intermediate scan and display -all the possible memory leaks: +thread scans the memory every 10 minutes (by default) and prints the +number of new unreferenced objects found. To trigger an intermediate +scan and display the details of all the possible memory leaks: # mount -t debugfs nodev /sys/kernel/debug/ # cat /sys/kernel/debug/kmemleak diff --git a/mm/kmemleak.c b/mm/kmemleak.c index a38418a95d3..4130a4889fa 100644 --- a/mm/kmemleak.c +++ b/mm/kmemleak.c @@ -278,15 +278,6 @@ static int color_gray(const struct kmemleak_object *object) return object->min_count != -1 && object->count >= object->min_count; } -/* - * Objects are considered referenced if their color is gray and they have not - * been deleted. - */ -static int referenced_object(struct kmemleak_object *object) -{ - return (object->flags & OBJECT_ALLOCATED) && color_gray(object); -} - /* * Objects are considered unreferenced only if their color is white, they have * not be deleted and have a minimum age to avoid false positives caused by @@ -299,38 +290,23 @@ static int unreferenced_object(struct kmemleak_object *object) } /* - * Printing of the (un)referenced objects information, either to the seq file - * or to the kernel log. The print_referenced/print_unreferenced functions - * must be called with the object->lock held. + * Printing of the unreferenced objects information to the seq file. The + * print_unreferenced function must be called with the object->lock held. */ -#define print_helper(seq, x...) do { \ - struct seq_file *s = (seq); \ - if (s) \ - seq_printf(s, x); \ - else \ - pr_info(x); \ -} while (0) - -static void print_referenced(struct kmemleak_object *object) -{ - pr_info("referenced object 0x%08lx (size %zu)\n", - object->pointer, object->size); -} - static void print_unreferenced(struct seq_file *seq, struct kmemleak_object *object) { int i; - print_helper(seq, "unreferenced object 0x%08lx (size %zu):\n", - object->pointer, object->size); - print_helper(seq, " comm \"%s\", pid %d, jiffies %lu\n", - object->comm, object->pid, object->jiffies); - print_helper(seq, " backtrace:\n"); + seq_printf(seq, "unreferenced object 0x%08lx (size %zu):\n", + object->pointer, object->size); + seq_printf(seq, " comm \"%s\", pid %d, jiffies %lu\n", + object->comm, object->pid, object->jiffies); + seq_printf(seq, " backtrace:\n"); for (i = 0; i < object->trace_len; i++) { void *ptr = (void *)object->trace[i]; - print_helper(seq, " [<%p>] %pS\n", ptr, ptr); + seq_printf(seq, " [<%p>] %pS\n", ptr, ptr); } } @@ -571,8 +547,6 @@ static void delete_object(unsigned long ptr) * cannot be freed when it is being scanned. */ spin_lock_irqsave(&object->lock, flags); - if (object->flags & OBJECT_REPORTED) - print_referenced(object); object->flags &= ~OBJECT_ALLOCATED; spin_unlock_irqrestore(&object->lock, flags); put_object(object); @@ -1073,33 +1047,30 @@ static int kmemleak_scan_thread(void *arg) while (!kthread_should_stop()) { struct kmemleak_object *object; signed long timeout = jiffies_scan_wait; + int new_leaks = 0; mutex_lock(&scan_mutex); kmemleak_scan(); - reported_leaks = 0; rcu_read_lock(); list_for_each_entry_rcu(object, &object_list, object_list) { unsigned long flags; - if (reported_leaks >= REPORTS_NR) - break; spin_lock_irqsave(&object->lock, flags); - if (!(object->flags & OBJECT_REPORTED) && - unreferenced_object(object)) { - print_unreferenced(NULL, object); + if (unreferenced_object(object) && + !(object->flags & OBJECT_REPORTED)) { object->flags |= OBJECT_REPORTED; - reported_leaks++; - } else if ((object->flags & OBJECT_REPORTED) && - referenced_object(object)) { - print_referenced(object); - object->flags &= ~OBJECT_REPORTED; + new_leaks++; } spin_unlock_irqrestore(&object->lock, flags); } rcu_read_unlock(); + if (new_leaks) + pr_info("%d new suspected memory leaks (see " + "/sys/kernel/debug/kmemleak)\n", new_leaks); + mutex_unlock(&scan_mutex); /* wait before the next scan */ while (timeout && !kthread_should_stop()) -- cgit v1.2.3 From 4698c1f2bbe44ce852ef1a6716973c1f5401a4c4 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Fri, 26 Jun 2009 17:38:27 +0100 Subject: kmemleak: Do not trigger a scan when reading the debug/kmemleak file Since there is a kernel thread for automatically scanning the memory, it makes sense for the debug/kmemleak file to only show its findings. This patch also adds support for "echo scan > debug/kmemleak" to trigger an intermediate memory scan and eliminates the kmemleak_mutex (scan_mutex covers all the cases now). Signed-off-by: Catalin Marinas --- Documentation/kmemleak.txt | 9 +++-- mm/kmemleak.c | 90 +++++++++++++++++++++------------------------- 2 files changed, 47 insertions(+), 52 deletions(-) diff --git a/Documentation/kmemleak.txt b/Documentation/kmemleak.txt index c06f7ba6499..89068030b01 100644 --- a/Documentation/kmemleak.txt +++ b/Documentation/kmemleak.txt @@ -17,12 +17,16 @@ Usage CONFIG_DEBUG_KMEMLEAK in "Kernel hacking" has to be enabled. A kernel thread scans the memory every 10 minutes (by default) and prints the -number of new unreferenced objects found. To trigger an intermediate -scan and display the details of all the possible memory leaks: +number of new unreferenced objects found. To display the details of all +the possible memory leaks: # mount -t debugfs nodev /sys/kernel/debug/ # cat /sys/kernel/debug/kmemleak +To trigger an intermediate memory scan: + + # echo scan > /sys/kernel/debug/kmemleak + Note that the orphan objects are listed in the order they were allocated and one object at the beginning of the list may cause other subsequent objects to be reported as orphan. @@ -37,6 +41,7 @@ Memory scanning parameters can be modified at run-time by writing to the scan=off - stop the automatic memory scanning thread scan= - set the automatic memory scanning period in seconds (default 600, 0 to stop the automatic scanning) + scan - trigger a memory scan Kmemleak can also be disabled at boot-time by passing "kmemleak=off" on the kernel command line. diff --git a/mm/kmemleak.c b/mm/kmemleak.c index 4130a4889fa..e96e0ec6a56 100644 --- a/mm/kmemleak.c +++ b/mm/kmemleak.c @@ -48,10 +48,10 @@ * scanned. This list is only modified during a scanning episode when the * scan_mutex is held. At the end of a scan, the gray_list is always empty. * Note that the kmemleak_object.use_count is incremented when an object is - * added to the gray_list and therefore cannot be freed - * - kmemleak_mutex (mutex): prevents multiple users of the "kmemleak" debugfs - * file together with modifications to the memory scanning parameters - * including the scan_thread pointer + * added to the gray_list and therefore cannot be freed. This mutex also + * prevents multiple users of the "kmemleak" debugfs file together with + * modifications to the memory scanning parameters including the scan_thread + * pointer * * The kmemleak_object structures have a use_count incremented or decremented * using the get_object()/put_object() functions. When the use_count becomes @@ -195,10 +195,8 @@ static unsigned long jiffies_min_age; static signed long jiffies_scan_wait; /* enables or disables the task stacks scanning */ static int kmemleak_stack_scan = 1; -/* mutex protecting the memory scanning */ +/* protects the memory scanning, parameters and debug/kmemleak file access */ static DEFINE_MUTEX(scan_mutex); -/* mutex protecting the access to the /sys/kernel/debug/kmemleak file */ -static DEFINE_MUTEX(kmemleak_mutex); /* number of leaks reported (for limitation purposes) */ static int reported_leaks; @@ -927,6 +925,7 @@ static void kmemleak_scan(void) struct kmemleak_object *object, *tmp; struct task_struct *task; int i; + int new_leaks = 0; /* prepare the kmemleak_object's */ rcu_read_lock(); @@ -1024,6 +1023,26 @@ static void kmemleak_scan(void) object = tmp; } WARN_ON(!list_empty(&gray_list)); + + /* + * Scanning result reporting. + */ + rcu_read_lock(); + list_for_each_entry_rcu(object, &object_list, object_list) { + spin_lock_irqsave(&object->lock, flags); + if (unreferenced_object(object) && + !(object->flags & OBJECT_REPORTED)) { + object->flags |= OBJECT_REPORTED; + new_leaks++; + } + spin_unlock_irqrestore(&object->lock, flags); + } + rcu_read_unlock(); + + if (new_leaks) + pr_info("%d new suspected memory leaks (see " + "/sys/kernel/debug/kmemleak)\n", new_leaks); + } /* @@ -1045,33 +1064,12 @@ static int kmemleak_scan_thread(void *arg) } while (!kthread_should_stop()) { - struct kmemleak_object *object; signed long timeout = jiffies_scan_wait; - int new_leaks = 0; mutex_lock(&scan_mutex); - kmemleak_scan(); - - rcu_read_lock(); - list_for_each_entry_rcu(object, &object_list, object_list) { - unsigned long flags; - - spin_lock_irqsave(&object->lock, flags); - if (unreferenced_object(object) && - !(object->flags & OBJECT_REPORTED)) { - object->flags |= OBJECT_REPORTED; - new_leaks++; - } - spin_unlock_irqrestore(&object->lock, flags); - } - rcu_read_unlock(); - - if (new_leaks) - pr_info("%d new suspected memory leaks (see " - "/sys/kernel/debug/kmemleak)\n", new_leaks); - mutex_unlock(&scan_mutex); + /* wait before the next scan */ while (timeout && !kthread_should_stop()) timeout = schedule_timeout_interruptible(timeout); @@ -1084,7 +1082,7 @@ static int kmemleak_scan_thread(void *arg) /* * Start the automatic memory scanning thread. This function must be called - * with the kmemleak_mutex held. + * with the scan_mutex held. */ void start_scan_thread(void) { @@ -1099,7 +1097,7 @@ void start_scan_thread(void) /* * Stop the automatic memory scanning thread. This function must be called - * with the kmemleak_mutex held. + * with the scan_mutex held. */ void stop_scan_thread(void) { @@ -1119,10 +1117,8 @@ static void *kmemleak_seq_start(struct seq_file *seq, loff_t *pos) struct kmemleak_object *object; loff_t n = *pos; - if (!n) { - kmemleak_scan(); + if (!n) reported_leaks = 0; - } if (reported_leaks >= REPORTS_NR) return NULL; @@ -1206,13 +1202,10 @@ static int kmemleak_open(struct inode *inode, struct file *file) if (!atomic_read(&kmemleak_enabled)) return -EBUSY; - ret = mutex_lock_interruptible(&kmemleak_mutex); + ret = mutex_lock_interruptible(&scan_mutex); if (ret < 0) goto out; if (file->f_mode & FMODE_READ) { - ret = mutex_lock_interruptible(&scan_mutex); - if (ret < 0) - goto kmemleak_unlock; ret = seq_open(file, &kmemleak_seq_ops); if (ret < 0) goto scan_unlock; @@ -1221,8 +1214,6 @@ static int kmemleak_open(struct inode *inode, struct file *file) scan_unlock: mutex_unlock(&scan_mutex); -kmemleak_unlock: - mutex_unlock(&kmemleak_mutex); out: return ret; } @@ -1231,11 +1222,9 @@ static int kmemleak_release(struct inode *inode, struct file *file) { int ret = 0; - if (file->f_mode & FMODE_READ) { + if (file->f_mode & FMODE_READ) seq_release(inode, file); - mutex_unlock(&scan_mutex); - } - mutex_unlock(&kmemleak_mutex); + mutex_unlock(&scan_mutex); return ret; } @@ -1250,6 +1239,7 @@ static int kmemleak_release(struct inode *inode, struct file *file) * scan=off - stop the automatic memory scanning thread * scan=... - set the automatic memory scanning period in seconds (0 to * disable it) + * scan - trigger a memory scan */ static ssize_t kmemleak_write(struct file *file, const char __user *user_buf, size_t size, loff_t *ppos) @@ -1287,7 +1277,9 @@ static ssize_t kmemleak_write(struct file *file, const char __user *user_buf, jiffies_scan_wait = msecs_to_jiffies(secs * 1000); start_scan_thread(); } - } else + } else if (strncmp(buf, "scan", 4) == 0) + kmemleak_scan(); + else return -EINVAL; /* ignore the rest of the buffer, only one command at a time */ @@ -1312,11 +1304,9 @@ static int kmemleak_cleanup_thread(void *arg) { struct kmemleak_object *object; - mutex_lock(&kmemleak_mutex); + mutex_lock(&scan_mutex); stop_scan_thread(); - mutex_unlock(&kmemleak_mutex); - mutex_lock(&scan_mutex); rcu_read_lock(); list_for_each_entry_rcu(object, &object_list, object_list) delete_object(object->pointer); @@ -1458,9 +1448,9 @@ static int __init kmemleak_late_init(void) &kmemleak_fops); if (!dentry) pr_warning("Failed to create the debugfs kmemleak file\n"); - mutex_lock(&kmemleak_mutex); + mutex_lock(&scan_mutex); start_scan_thread(); - mutex_unlock(&kmemleak_mutex); + mutex_unlock(&scan_mutex); pr_info("Kernel memory leak detector initialized\n"); -- cgit v1.2.3 From acf4968ec9dea49387ca8b3d36dfaa0850bdb2d5 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Fri, 26 Jun 2009 17:38:29 +0100 Subject: kmemleak: Slightly change the policy on newly allocated objects Newly allocated objects are more likely to be reported as false positives. Kmemleak ignores the reporting of objects younger than 5 seconds. However, this age was calculated after the memory scanning completed which usually takes longer than 5 seconds. This patch make the minimum object age calculation in relation to the start of the memory scanning. Signed-off-by: Catalin Marinas --- mm/kmemleak.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/mm/kmemleak.c b/mm/kmemleak.c index e96e0ec6a56..c37e8e50e4d 100644 --- a/mm/kmemleak.c +++ b/mm/kmemleak.c @@ -190,7 +190,9 @@ static unsigned long max_addr; static unsigned long next_scan_yield; static struct task_struct *scan_thread; static unsigned long jiffies_scan_yield; +/* used to avoid reporting of recently allocated objects */ static unsigned long jiffies_min_age; +static unsigned long jiffies_last_scan; /* delay between automatic memory scannings */ static signed long jiffies_scan_wait; /* enables or disables the task stacks scanning */ @@ -284,7 +286,8 @@ static int color_gray(const struct kmemleak_object *object) static int unreferenced_object(struct kmemleak_object *object) { return (object->flags & OBJECT_ALLOCATED) && color_white(object) && - time_is_before_eq_jiffies(object->jiffies + jiffies_min_age); + time_before_eq(object->jiffies + jiffies_min_age, + jiffies_last_scan); } /* @@ -927,6 +930,8 @@ static void kmemleak_scan(void) int i; int new_leaks = 0; + jiffies_last_scan = jiffies; + /* prepare the kmemleak_object's */ rcu_read_lock(); list_for_each_entry_rcu(object, &object_list, object_list) { -- cgit v1.2.3 From 89bb871e96cdc3d78b7f69f0bacc94b21bbaccfd Mon Sep 17 00:00:00 2001 From: "Steven A. Falco" Date: Fri, 26 Jun 2009 12:42:47 -0400 Subject: mtd: m25p80 timeout too short for worst-case m25p16 devices The m25p16 data sheet from numonyx lists the worst-case bulk erase time (tBE) as 40 seconds. Signed-off-by: Steven A. Falco Signed-off-by: David Woodhouse --- drivers/mtd/devices/m25p80.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 59c46126a5c..ae5fe91867e 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -54,7 +54,7 @@ #define SR_SRWD 0x80 /* SR write protect */ /* Define max times to check status register before we give up. */ -#define MAX_READY_WAIT_JIFFIES (10 * HZ) /* eg. M25P128 specs 6s max sector erase */ +#define MAX_READY_WAIT_JIFFIES (40 * HZ) /* M25P16 specs 40s max chip erase */ #define CMD_SIZE 4 #ifdef CONFIG_M25PXX_USE_FAST_READ -- cgit v1.2.3 From 9c72ebef5aabf3532469d602a9d87beceea268b1 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Fri, 26 Jun 2009 11:22:37 -0700 Subject: ide-cd: handle fragmented packet commands gracefully There are some devices in the wild that clear the DRQ bit during the last word of a packet command and therefore could use a "second chance" for that last word of data to be xferred instead of simply failing the request. Do that by attempting to suck in those last bytes in PIO mode. In addition, the ATA_ERR bit has to be cleared for we cannot be sure the data is valid otherwise. See http://bugzilla.kernel.org/show_bug.cgi?id=13399 for details. Signed-off-by: Borislav Petkov Acked-by: Bartlomiej Zolnierkiewicz Signed-off-by: David S. Miller --- drivers/ide/ide-cd.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index f0ede5953af..6a9a769bffc 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -592,9 +592,19 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) } } else if (!blk_pc_request(rq)) { ide_cd_request_sense_fixup(drive, cmd); - /* complain if we still have data left to transfer */ + uptodate = cmd->nleft ? 0 : 1; - if (uptodate == 0) + + /* + * suck out the remaining bytes from the drive in an + * attempt to complete the data xfer. (see BZ#13399) + */ + if (!(stat & ATA_ERR) && !uptodate && thislen) { + ide_pio_bytes(drive, cmd, write, thislen); + uptodate = cmd->nleft ? 0 : 1; + } + + if (!uptodate) rq->cmd_flags |= REQ_FAILED; } goto out_end; -- cgit v1.2.3 From a32c7765e2796395aec49f699bd25c407155e9c5 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Fri, 26 Jun 2009 16:55:51 +0800 Subject: tracing: Fix stack tracer sysctl handling This made my machine completely frozen: # echo 1 > /proc/sys/kernel/stack_tracer_enabled # echo 2 > /proc/sys/kernel/stack_tracer_enabled The cause is register_ftrace_function() was called twice. Also fix ftrace_enabled sysctl, though seems nothing bad happened as I tested it. Signed-off-by: Li Zefan Cc: Steven Rostedt Cc: Frederic Weisbecker LKML-Reference: <4A448D17.9010305@cn.fujitsu.com> Signed-off-by: Ingo Molnar --- kernel/trace/ftrace.c | 4 ++-- kernel/trace/trace_stack.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index f3716bf04df..bce9e01a29c 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -3160,10 +3160,10 @@ ftrace_enable_sysctl(struct ctl_table *table, int write, ret = proc_dointvec(table, write, file, buffer, lenp, ppos); - if (ret || !write || (last_ftrace_enabled == ftrace_enabled)) + if (ret || !write || (last_ftrace_enabled == !!ftrace_enabled)) goto out; - last_ftrace_enabled = ftrace_enabled; + last_ftrace_enabled = !!ftrace_enabled; if (ftrace_enabled) { diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c index 2d7aebd71db..e644af91012 100644 --- a/kernel/trace/trace_stack.c +++ b/kernel/trace/trace_stack.c @@ -326,10 +326,10 @@ stack_trace_sysctl(struct ctl_table *table, int write, ret = proc_dointvec(table, write, file, buffer, lenp, ppos); if (ret || !write || - (last_stack_tracer_enabled == stack_tracer_enabled)) + (last_stack_tracer_enabled == !!stack_tracer_enabled)) goto out; - last_stack_tracer_enabled = stack_tracer_enabled; + last_stack_tracer_enabled = !!stack_tracer_enabled; if (stack_tracer_enabled) register_ftrace_function(&trace_ops); -- cgit v1.2.3 From 82d5308127c3e3404ffbf41e503853c68660b18b Mon Sep 17 00:00:00 2001 From: Lai Jiangshan Date: Fri, 26 Jun 2009 17:07:02 +0800 Subject: trace_export: Repair missed fields Some fields for struct ftrace_graph_ret are missed when they are exported to user. Signed-off-by: Lai Jiangshan Cc: Frederic Weisbecker Cc: Steven Rostedt LKML-Reference: <4A448FB6.5000302@cn.fujitsu.com> Signed-off-by: Ingo Molnar --- kernel/trace/trace_event_types.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/kernel/trace/trace_event_types.h b/kernel/trace/trace_event_types.h index 5e32e375134..6db005e1248 100644 --- a/kernel/trace/trace_event_types.h +++ b/kernel/trace/trace_event_types.h @@ -26,6 +26,9 @@ TRACE_EVENT_FORMAT(funcgraph_exit, TRACE_GRAPH_RET, ftrace_graph_ret_entry, ignore, TRACE_STRUCT( TRACE_FIELD(unsigned long, ret.func, func) + TRACE_FIELD(unsigned long long, ret.calltime, calltime) + TRACE_FIELD(unsigned long long, ret.rettime, rettime) + TRACE_FIELD(unsigned long, ret.overrun, overrun) TRACE_FIELD(int, ret.depth, depth) ), TP_RAW_FMT("<-- %lx (%d)") -- cgit v1.2.3 From 73f1d9391a6aa72efdcea2f302ee7bfcd313c631 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 24 Jun 2009 01:04:36 +0900 Subject: asm-generic/vmlinux.lds.h: Fix up RW_DATA_SECTION definition. RW_DATA_SECTION is defined to take 4 different alignment parameters, while NOSAVE_DATA currently uses a fixed PAGE_SIZE alignment as noted in the comments. There are presently no in-tree users of this at present, and I just stumbled across this while implementing the simplified script on a new architecture port, which subsequently resulted in a syntax error. Signed-off-by: Paul Mundt Signed-off-by: Sam Ravnborg --- include/asm-generic/vmlinux.lds.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 92b73b6140f..f92e730695c 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -704,7 +704,7 @@ * matches the requirment of PAGE_ALIGNED_DATA. * * use 0 as page_align if page_aligned data is not used */ -#define RW_DATA_SECTION(cacheline, nosave, pagealigned, inittask) \ +#define RW_DATA_SECTION(cacheline, pagealigned, inittask) \ . = ALIGN(PAGE_SIZE); \ .data : AT(ADDR(.data) - LOAD_OFFSET) { \ INIT_TASK(inittask) \ @@ -712,7 +712,7 @@ READ_MOSTLY_DATA(cacheline) \ DATA_DATA \ CONSTRUCTORS \ - NOSAVE_DATA(nosave) \ + NOSAVE_DATA \ PAGE_ALIGNED_DATA(pagealigned) \ } -- cgit v1.2.3 From d2af12aeadaedf657c9fb9c3df984d2c5ab25f4c Mon Sep 17 00:00:00 2001 From: Tim Abbott Date: Tue, 23 Jun 2009 19:59:35 -0400 Subject: Add new macros for page-aligned data and bss sections. This patch is preparation for replacing most uses of ".bss.page_aligned" and ".data.page_aligned" in the kernel with macros, so that the section name can later be changed without having to touch a lot of the kernel. The long-term goal here is to be able to change the kernel's magic section names to those that are compatible with -ffunction-sections -fdata-sections. This requires renaming all magic sections with names of the form ".data.foo". Signed-off-by: Tim Abbott Acked-by: David Howells Signed-off-by: Sam Ravnborg --- include/linux/linkage.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/linux/linkage.h b/include/linux/linkage.h index fee9e59649c..691f59171c6 100644 --- a/include/linux/linkage.h +++ b/include/linux/linkage.h @@ -21,6 +21,15 @@ #define __page_aligned_data __section(.data.page_aligned) __aligned(PAGE_SIZE) #define __page_aligned_bss __section(.bss.page_aligned) __aligned(PAGE_SIZE) +/* + * For assembly routines. + * + * Note when using these that you must specify the appropriate + * alignment directives yourself + */ +#define __PAGE_ALIGNED_DATA .section ".data.page_aligned", "aw" +#define __PAGE_ALIGNED_BSS .section ".bss.page_aligned", "aw" + /* * This is used by architectures to keep arguments on the stack * untouched by the compiler by keeping them live until the end. -- cgit v1.2.3 From 39a449d96ac3db9b6d498b6ffbf4c763746d5e8b Mon Sep 17 00:00:00 2001 From: Tim Abbott Date: Tue, 23 Jun 2009 18:53:15 -0400 Subject: asm-generic/vmlinux.lds.h: shuffle INIT_TASK* macro names in vmlinux.lds.h We recently added a INIT_TASK(align) in include/asm-generic/vmlinux.lds.h, but there is already a macro INIT_TASK in include/linux/init_task.h, which is quite confusing. We should switch the macro in the linker script to INIT_TASK_DATA. (Sorry that I missed this in reviewing the patch). Since the macros are new, there is only one user of the INIT_TASK in vmlinux.lds.h, arch/mn10300/kernel/vmlinux.lds.S. However, we are currently using INIT_TASK_DATA for laying down an entire .data.init_task section. So rename that to INIT_TASK_DATA_SECTION. I would be worried about changing the meaning of INIT_TASK_DATA, but the old INIT_TASK_DATA implementation had no users, and in fact if anyone had tried to use it, it would have failed to compile because it didn't pass the alignment to the old INIT_TASK. Signed-off-by: Tim Abbott Cc: David Howells Cc: Jesper Nilsson --- arch/mn10300/kernel/vmlinux.lds.S | 2 +- include/asm-generic/vmlinux.lds.h | 8 ++++---- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/mn10300/kernel/vmlinux.lds.S b/arch/mn10300/kernel/vmlinux.lds.S index bcebcefb4ad..c96ba3da95a 100644 --- a/arch/mn10300/kernel/vmlinux.lds.S +++ b/arch/mn10300/kernel/vmlinux.lds.S @@ -61,7 +61,7 @@ SECTIONS _edata = .; /* End of data section */ } - .data.init_task : { INIT_TASK(THREAD_SIZE); } + .data.init_task : { INIT_TASK_DATA(THREAD_SIZE); } /* might get freed after init */ . = ALIGN(PAGE_SIZE); diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index f92e730695c..720af4c7220 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -191,7 +191,7 @@ . = ALIGN(align); \ *(.data.cacheline_aligned) -#define INIT_TASK(align) \ +#define INIT_TASK_DATA(align) \ . = ALIGN(align); \ *(.data.init_task) @@ -434,10 +434,10 @@ /* * Init task */ -#define INIT_TASK_DATA(align) \ +#define INIT_TASK_DATA_SECTION(align) \ . = ALIGN(align); \ .data.init_task : { \ - INIT_TASK \ + INIT_TASK_DATA(align) \ } #ifdef CONFIG_CONSTRUCTORS @@ -707,7 +707,7 @@ #define RW_DATA_SECTION(cacheline, pagealigned, inittask) \ . = ALIGN(PAGE_SIZE); \ .data : AT(ADDR(.data) - LOAD_OFFSET) { \ - INIT_TASK(inittask) \ + INIT_TASK_DATA(inittask) \ CACHELINE_ALIGNED_DATA(cacheline) \ READ_MOSTLY_DATA(cacheline) \ DATA_DATA \ -- cgit v1.2.3 From 857eceebd2803c9a3459f784acf45e5266921e4d Mon Sep 17 00:00:00 2001 From: Tim Abbott Date: Tue, 23 Jun 2009 19:59:36 -0400 Subject: Add new __init_task_data macro to be used in arch init_task.c files. This patch is preparation for replacing most ".data.init_task" in the kernel with macros, so that the section name can later be changed without having to touch a lot of the kernel. The long-term goal here is to be able to change the kernel's magic section names to those that are compatible with -ffunction-sections -fdata-sections. This requires renaming all magic sections with names of the form ".data.foo". Signed-off-by: Tim Abbott Signed-off-by: Sam Ravnborg --- include/linux/init_task.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/linux/init_task.h b/include/linux/init_task.h index 5368fbdc780..7fc01b13be4 100644 --- a/include/linux/init_task.h +++ b/include/linux/init_task.h @@ -183,5 +183,8 @@ extern struct cred init_cred; LIST_HEAD_INIT(cpu_timers[2]), \ } +/* Attach to the init_task data structure for proper alignment */ +#define __init_task_data __attribute__((__section__(".data.init_task"))) + #endif -- cgit v1.2.3 From 1ab18486e4e8bf9554d8439207b97422d7466d77 Mon Sep 17 00:00:00 2001 From: maximilian attems Date: Fri, 26 Jun 2009 20:04:36 +0200 Subject: kbuild: deb-pkg ship changelog In the series for 2.6.31 it was noticed to ship the copyright, but the generated changelog got lost somehow. As bonus the generated linux-image deb packages are Lenny lintian clean. Cc: Frans Pop Cc: Andres Salomon Signed-off-by: maximilian attems Signed-off-by: Sam Ravnborg --- scripts/package/builddeb | 2 ++ 1 file changed, 2 insertions(+) diff --git a/scripts/package/builddeb b/scripts/package/builddeb index 01c2d13dd02..b19f1f4962e 100644 --- a/scripts/package/builddeb +++ b/scripts/package/builddeb @@ -16,6 +16,8 @@ create_package() { local pname="$1" pdir="$2" cp debian/copyright "$pdir/usr/share/doc/$pname/" + cp debian/changelog "$pdir/usr/share/doc/$pname/changelog.Debian" + gzip -9 "$pdir/usr/share/doc/$pname/changelog.Debian" # Fix ownership and permissions chown -R root:root "$pdir" -- cgit v1.2.3 From 7a6b1f1c0c492a6bb6f778dff0f9f5facb90d1a1 Mon Sep 17 00:00:00 2001 From: Amerigo Wang Date: Mon, 22 Jun 2009 17:18:32 +0800 Subject: gitignore: ignore gcov output files Ignore *.gcno files which are generated by gcov. Signed-off-by: WANG Cong Signed-off-by: Sam Ravnborg --- .gitignore | 1 + 1 file changed, 1 insertion(+) diff --git a/.gitignore b/.gitignore index cecb3b040cc..b93fb7eff94 100644 --- a/.gitignore +++ b/.gitignore @@ -27,6 +27,7 @@ *.gz *.lzma *.patch +*.gcno # # Top-level generic files -- cgit v1.2.3 From a8735821d198675dd326cc5847e79df79c735119 Mon Sep 17 00:00:00 2001 From: Floris Kraak Date: Mon, 15 Jun 2009 08:54:02 +0300 Subject: Kbuild: Disable the -Wformat-security gcc flag Some distributions have enabled the gcc flag -Wformat-security by default. This results in a number of warnings about format arguments to functions, sometimes in cases where fixing the warning is not likely to actually fix a bug. Instead of hand patching a dozens of places (possibly more) that produce warnings that get ignored anyway we just turn off the flag in the Makefile. Signed-off-by: Floris Kraak Signed-off-by: Pekka Enberg Signed-off-by: Sam Ravnborg --- Makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/Makefile b/Makefile index d1216fea0c9..8fb9bfce212 100644 --- a/Makefile +++ b/Makefile @@ -344,7 +344,8 @@ KBUILD_CPPFLAGS := -D__KERNEL__ KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ -fno-strict-aliasing -fno-common \ - -Werror-implicit-function-declaration + -Werror-implicit-function-declaration \ + -Wno-format-security KBUILD_AFLAGS := -D__ASSEMBLY__ # Read KERNELRELEASE from include/config/kernel.release (if it exists) -- cgit v1.2.3 From c512d2544c688ff1fab18a530860a9c7440a71b7 Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Sat, 20 Jun 2009 18:25:25 +0530 Subject: gitignore: ignore scripts/ihex2fw scripts/ihex2fw is a generated binary and should be ignored Signed-off-by: Jaswinder Singh Rajput Signed-off-by: Sam Ravnborg --- scripts/.gitignore | 1 + 1 file changed, 1 insertion(+) diff --git a/scripts/.gitignore b/scripts/.gitignore index b939fbd0119..52cab46ae35 100644 --- a/scripts/.gitignore +++ b/scripts/.gitignore @@ -7,3 +7,4 @@ pnmtologo bin2c unifdef binoffset +ihex2fw -- cgit v1.2.3 From 112942353992d95099fb5b71c679ff1046fccfcf Mon Sep 17 00:00:00 2001 From: Amerigo Wang Date: Fri, 19 Jun 2009 03:40:26 -0400 Subject: kbuild: finally remove the obsolete variable $TOPDIR TOPDIR is obsolete, it can be finally removed now. Signed-off-by: WANG Cong Signed-off-by: Sam Ravnborg --- Makefile | 4 +--- drivers/scsi/cxgb3i/Kbuild | 2 +- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/Makefile b/Makefile index 8fb9bfce212..b4c7ef5ab43 100644 --- a/Makefile +++ b/Makefile @@ -140,15 +140,13 @@ _all: modules endif srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) -TOPDIR := $(srctree) -# FIXME - TOPDIR is obsolete, use srctree/objtree objtree := $(CURDIR) src := $(srctree) obj := $(objtree) VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) -export srctree objtree VPATH TOPDIR +export srctree objtree VPATH # SUBARCH tells the usermode build what the underlying arch is. That is set diff --git a/drivers/scsi/cxgb3i/Kbuild b/drivers/scsi/cxgb3i/Kbuild index 25a2032bfa2..70d060b7ff4 100644 --- a/drivers/scsi/cxgb3i/Kbuild +++ b/drivers/scsi/cxgb3i/Kbuild @@ -1,4 +1,4 @@ -EXTRA_CFLAGS += -I$(TOPDIR)/drivers/net/cxgb3 +EXTRA_CFLAGS += -I$(srctree)/drivers/net/cxgb3 cxgb3i-y := cxgb3i_init.o cxgb3i_iscsi.o cxgb3i_pdu.o cxgb3i_offload.o cxgb3i_ddp.o obj-$(CONFIG_SCSI_CXGB3_ISCSI) += cxgb3i.o -- cgit v1.2.3 From fde953c1c67986e1c381fa50d8207b1578b5cefa Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Sat, 27 Jun 2009 06:06:39 +0200 Subject: perf_counter tools: Remove dead code Vince Weaver reported that there's a handful of #ifdef __MINGW32__ sections in the code. Remove them as they are in essence dead code - as unlike upstream Git, the perf tool is unlikely to be ported to Windows. Reported-by: Vince Weaver Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo LKML-Reference: Signed-off-by: Ingo Molnar --- tools/perf/util/help.c | 15 ------- tools/perf/util/pager.c | 5 +-- tools/perf/util/run-command.c | 95 +------------------------------------------ tools/perf/util/run-command.h | 5 --- tools/perf/util/util.h | 15 ------- 5 files changed, 3 insertions(+), 132 deletions(-) diff --git a/tools/perf/util/help.c b/tools/perf/util/help.c index 6653f7dd1d7..17a00e0df2c 100644 --- a/tools/perf/util/help.c +++ b/tools/perf/util/help.c @@ -126,21 +126,6 @@ static int is_executable(const char *name) !S_ISREG(st.st_mode)) return 0; -#ifdef __MINGW32__ - /* cannot trust the executable bit, peek into the file instead */ - char buf[3] = { 0 }; - int n; - int fd = open(name, O_RDONLY); - st.st_mode &= ~S_IXUSR; - if (fd >= 0) { - n = read(fd, buf, 2); - if (n == 2) - /* DOS executables start with "MZ" */ - if (!strcmp(buf, "#!") || !strcmp(buf, "MZ")) - st.st_mode |= S_IXUSR; - close(fd); - } -#endif return st.st_mode & S_IXUSR; } diff --git a/tools/perf/util/pager.c b/tools/perf/util/pager.c index a28bccae545..1915de20dca 100644 --- a/tools/perf/util/pager.c +++ b/tools/perf/util/pager.c @@ -9,7 +9,6 @@ static int spawned_pager; -#ifndef __MINGW32__ static void pager_preexec(void) { /* @@ -24,7 +23,6 @@ static void pager_preexec(void) setenv("LESS", "FRSX", 0); } -#endif static const char *pager_argv[] = { "sh", "-c", NULL, NULL }; static struct child_process pager_process; @@ -70,9 +68,8 @@ void setup_pager(void) pager_argv[2] = pager; pager_process.argv = pager_argv; pager_process.in = -1; -#ifndef __MINGW32__ pager_process.preexec_cb = pager_preexec; -#endif + if (start_command(&pager_process)) return; diff --git a/tools/perf/util/run-command.c b/tools/perf/util/run-command.c index b2f5e854f40..a3935343091 100644 --- a/tools/perf/util/run-command.c +++ b/tools/perf/util/run-command.c @@ -65,7 +65,6 @@ int start_command(struct child_process *cmd) cmd->err = fderr[0]; } -#ifndef __MINGW32__ fflush(NULL); cmd->pid = fork(); if (!cmd->pid) { @@ -118,71 +117,6 @@ int start_command(struct child_process *cmd) } exit(127); } -#else - int s0 = -1, s1 = -1, s2 = -1; /* backups of stdin, stdout, stderr */ - const char **sargv = cmd->argv; - char **env = environ; - - if (cmd->no_stdin) { - s0 = dup(0); - dup_devnull(0); - } else if (need_in) { - s0 = dup(0); - dup2(fdin[0], 0); - } else if (cmd->in) { - s0 = dup(0); - dup2(cmd->in, 0); - } - - if (cmd->no_stderr) { - s2 = dup(2); - dup_devnull(2); - } else if (need_err) { - s2 = dup(2); - dup2(fderr[1], 2); - } - - if (cmd->no_stdout) { - s1 = dup(1); - dup_devnull(1); - } else if (cmd->stdout_to_stderr) { - s1 = dup(1); - dup2(2, 1); - } else if (need_out) { - s1 = dup(1); - dup2(fdout[1], 1); - } else if (cmd->out > 1) { - s1 = dup(1); - dup2(cmd->out, 1); - } - - if (cmd->dir) - die("chdir in start_command() not implemented"); - if (cmd->env) { - env = copy_environ(); - for (; *cmd->env; cmd->env++) - env = env_setenv(env, *cmd->env); - } - - if (cmd->perf_cmd) { - cmd->argv = prepare_perf_cmd(cmd->argv); - } - - cmd->pid = mingw_spawnvpe(cmd->argv[0], cmd->argv, env); - - if (cmd->env) - free_environ(env); - if (cmd->perf_cmd) - free(cmd->argv); - - cmd->argv = sargv; - if (s0 >= 0) - dup2(s0, 0), close(s0); - if (s1 >= 0) - dup2(s1, 1), close(s1); - if (s2 >= 0) - dup2(s2, 2), close(s2); -#endif if (cmd->pid < 0) { int err = errno; @@ -288,14 +222,6 @@ int run_command_v_opt_cd_env(const char **argv, int opt, const char *dir, const return run_command(&cmd); } -#ifdef __MINGW32__ -static __stdcall unsigned run_thread(void *data) -{ - struct async *async = data; - return async->proc(async->fd_for_proc, async->data); -} -#endif - int start_async(struct async *async) { int pipe_out[2]; @@ -304,7 +230,6 @@ int start_async(struct async *async) return error("cannot create pipe: %s", strerror(errno)); async->out = pipe_out[0]; -#ifndef __MINGW32__ /* Flush stdio before fork() to avoid cloning buffers */ fflush(NULL); @@ -319,33 +244,17 @@ int start_async(struct async *async) exit(!!async->proc(pipe_out[1], async->data)); } close(pipe_out[1]); -#else - async->fd_for_proc = pipe_out[1]; - async->tid = (HANDLE) _beginthreadex(NULL, 0, run_thread, async, 0, NULL); - if (!async->tid) { - error("cannot create thread: %s", strerror(errno)); - close_pair(pipe_out); - return -1; - } -#endif + return 0; } int finish_async(struct async *async) { -#ifndef __MINGW32__ int ret = 0; if (wait_or_whine(async->pid)) ret = error("waitpid (async) failed"); -#else - DWORD ret = 0; - if (WaitForSingleObject(async->tid, INFINITE) != WAIT_OBJECT_0) - ret = error("waiting for thread failed: %lu", GetLastError()); - else if (!GetExitCodeThread(async->tid, &ret)) - ret = error("cannot get thread exit code: %lu", GetLastError()); - CloseHandle(async->tid); -#endif + return ret; } diff --git a/tools/perf/util/run-command.h b/tools/perf/util/run-command.h index 328289f2366..cc1837deba8 100644 --- a/tools/perf/util/run-command.h +++ b/tools/perf/util/run-command.h @@ -79,12 +79,7 @@ struct async { int (*proc)(int fd, void *data); void *data; int out; /* caller reads from here and closes it */ -#ifndef __MINGW32__ pid_t pid; -#else - HANDLE tid; - int fd_for_proc; -#endif }; int start_async(struct async *async); diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h index b8cfed776d8..b4be6071c10 100644 --- a/tools/perf/util/util.h +++ b/tools/perf/util/util.h @@ -67,7 +67,6 @@ #include #include #include -#ifndef __MINGW32__ #include #include #include @@ -81,20 +80,6 @@ #include #include #include -#if defined(__CYGWIN__) -#undef _XOPEN_SOURCE -#include -#define _XOPEN_SOURCE 600 -#include "compat/cygwin.h" -#else -#undef _ALL_SOURCE /* AIX 5.3L defines a struct list with _ALL_SOURCE. */ -#include -#define _ALL_SOURCE 1 -#endif -#else /* __MINGW32__ */ -/* pull in Windows compatibility stuff */ -#include "compat/mingw.h" -#endif /* __MINGW32__ */ #ifndef NO_ICONV #include -- cgit v1.2.3 From 0cfb7a13b8e4e0afd4b856156ab16a182de7505b Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Sat, 27 Jun 2009 06:10:30 +0200 Subject: perf stat: Add -n/--null option to run without counters Allow a no-counters run. This can be useful to measure just elapsed wall-clock time - or to assess the raw overhead of perf stat itself, without running any counters. Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo LKML-Reference: Signed-off-by: Ingo Molnar --- tools/perf/builtin-stat.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 8420ec58950..cdcd058fac0 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -70,6 +70,7 @@ static int run_count = 1; static int inherit = 1; static int scale = 1; static int target_pid = -1; +static int null_run = 0; static int fd[MAX_NR_CPUS][MAX_COUNTERS]; @@ -461,6 +462,8 @@ static const struct option options[] = { "be more verbose (show counter open errors, etc)"), OPT_INTEGER('r', "repeat", &run_count, "repeat command and print average + stddev (max: 100)"), + OPT_BOOLEAN('n', "null", &null_run, + "null run - dont start any counters"), OPT_END() }; @@ -476,7 +479,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix) if (run_count <= 0 || run_count > MAX_RUN) usage_with_options(stat_usage, options); - if (!nr_counters) + if (!null_run && !nr_counters) nr_counters = 8; nr_cpus = sysconf(_SC_NPROCESSORS_ONLN); -- cgit v1.2.3 From 566747e6298289c5cb02d4939cb3abf1c4fe7e5a Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Sat, 27 Jun 2009 06:24:32 +0200 Subject: perf stat: Fix multi-run stats In multi-run (-r/--repeat) printouts, print out the noise of the wall-clock average as well. Also, fix a bug in printing out scaled counters: if it was not scaled then we should not update the average with -1. Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo LKML-Reference: Signed-off-by: Ingo Molnar --- tools/perf/builtin-stat.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index cdcd058fac0..52c176cc683 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -353,8 +353,11 @@ static void calc_avg(void) event_res_avg[j]+1, event_res[i][j]+1); update_avg("counter/2", j, event_res_avg[j]+2, event_res[i][j]+2); - update_avg("scaled", j, - event_scaled_avg + j, event_scaled[i]+j); + if (event_scaled[i][j] != -1) + update_avg("scaled", j, + event_scaled_avg + j, event_scaled[i]+j); + else + event_scaled_avg[j] = -1; } } runtime_nsecs_avg /= run_count; @@ -420,9 +423,13 @@ static void print_stat(int argc, const char **argv) fprintf(stderr, "\n"); - fprintf(stderr, " %14.9f seconds time elapsed.\n", + fprintf(stderr, " %14.9f seconds time elapsed", (double)walltime_nsecs_avg/1e9); - fprintf(stderr, "\n"); + if (run_count > 1) { + fprintf(stderr, " ( +- %7.3f%% )", + 100.0*(double)walltime_nsecs_noise/(double)walltime_nsecs_avg); + } + fprintf(stderr, "\n\n"); } static volatile int signr = -1; -- cgit v1.2.3 From 70ec3bb8ea3f8c55b255f41d122c7d4d8c0d00b4 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sat, 27 Jun 2009 09:55:32 +0200 Subject: mtd: Use BLOCK_NIL consistently in NFTL/INFTL Use BLOCK_NIL consistently rather than sometimes 0xffff and sometimes BLOCK_NIL. The semantic patch that finds this issue is below (http://www.emn.fr/x-info/coccinelle/). On the other hand, the changes were made by hand, in part because drivers/mtd/inftlcore.c contains dead code that causes spatch to ignore a relevant function. Specifically, the function INFTL_findwriteunit contains a do-while loop, but always takes a return that leaves the loop on the first iteration. // @r exists@ identifier f,C; @@ f(...) { ... return C; } @s@ identifier r.C; expression E; @@ @@ identifier r.f,r.C,I; expression s.E; @@ f(...) { <... ( I | - E + C ) ...> } // Signed-off-by: Julia Lawall Signed-off-by: David Woodhouse --- drivers/mtd/inftlcore.c | 11 ++++++----- drivers/mtd/nftlcore.c | 16 ++++++++-------- 2 files changed, 14 insertions(+), 13 deletions(-) diff --git a/drivers/mtd/inftlcore.c b/drivers/mtd/inftlcore.c index 73f05227dc8..d8cf29c01cc 100644 --- a/drivers/mtd/inftlcore.c +++ b/drivers/mtd/inftlcore.c @@ -226,7 +226,7 @@ static u16 INFTL_findfreeblock(struct INFTLrecord *inftl, int desperate) if (!desperate && inftl->numfreeEUNs < 2) { DEBUG(MTD_DEBUG_LEVEL1, "INFTL: there are too few free " "EUNs (%d)\n", inftl->numfreeEUNs); - return 0xffff; + return BLOCK_NIL; } /* Scan for a free block */ @@ -281,7 +281,8 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned silly = MAX_LOOPS; while (thisEUN < inftl->nb_blocks) { for (block = 0; block < inftl->EraseSize/SECTORSIZE; block ++) { - if ((BlockMap[block] != 0xffff) || BlockDeleted[block]) + if ((BlockMap[block] != BLOCK_NIL) || + BlockDeleted[block]) continue; if (inftl_read_oob(mtd, (thisEUN * inftl->EraseSize) @@ -525,7 +526,7 @@ static inline u16 INFTL_findwriteunit(struct INFTLrecord *inftl, unsigned block) if (!silly--) { printk(KERN_WARNING "INFTL: infinite loop in " "Virtual Unit Chain 0x%x\n", thisVUC); - return 0xffff; + return BLOCK_NIL; } /* Skip to next block in chain */ @@ -549,7 +550,7 @@ hitused: * waiting to be picked up. We're going to have to fold * a chain to make room. */ - thisEUN = INFTL_makefreeblock(inftl, 0xffff); + thisEUN = INFTL_makefreeblock(inftl, BLOCK_NIL); /* * Hopefully we free something, lets try again. @@ -631,7 +632,7 @@ hitused: printk(KERN_WARNING "INFTL: error folding to make room for Virtual " "Unit Chain 0x%x\n", thisVUC); - return 0xffff; + return BLOCK_NIL; } /* diff --git a/drivers/mtd/nftlcore.c b/drivers/mtd/nftlcore.c index e3f8495a94c..fb86cacd5bd 100644 --- a/drivers/mtd/nftlcore.c +++ b/drivers/mtd/nftlcore.c @@ -208,7 +208,7 @@ static u16 NFTL_findfreeblock(struct NFTLrecord *nftl, int desperate ) /* Normally, we force a fold to happen before we run out of free blocks completely */ if (!desperate && nftl->numfreeEUNs < 2) { DEBUG(MTD_DEBUG_LEVEL1, "NFTL_findfreeblock: there are too few free EUNs\n"); - return 0xffff; + return BLOCK_NIL; } /* Scan for a free block */ @@ -230,11 +230,11 @@ static u16 NFTL_findfreeblock(struct NFTLrecord *nftl, int desperate ) printk("Argh! No free blocks found! LastFreeEUN = %d, " "FirstEUN = %d\n", nftl->LastFreeEUN, le16_to_cpu(nftl->MediaHdr.FirstPhysicalEUN)); - return 0xffff; + return BLOCK_NIL; } } while (pot != nftl->LastFreeEUN); - return 0xffff; + return BLOCK_NIL; } static u16 NFTL_foldchain (struct NFTLrecord *nftl, unsigned thisVUC, unsigned pendingblock ) @@ -431,7 +431,7 @@ static u16 NFTL_foldchain (struct NFTLrecord *nftl, unsigned thisVUC, unsigned p /* add the header so that it is now a valid chain */ oob.u.a.VirtUnitNum = oob.u.a.SpareVirtUnitNum = cpu_to_le16(thisVUC); - oob.u.a.ReplUnitNum = oob.u.a.SpareReplUnitNum = 0xffff; + oob.u.a.ReplUnitNum = oob.u.a.SpareReplUnitNum = BLOCK_NIL; nftl_write_oob(mtd, (nftl->EraseSize * targetEUN) + 8, 8, &retlen, (char *)&oob.u); @@ -515,7 +515,7 @@ static u16 NFTL_makefreeblock( struct NFTLrecord *nftl , unsigned pendingblock) if (ChainLength < 2) { printk(KERN_WARNING "No Virtual Unit Chains available for folding. " "Failing request\n"); - return 0xffff; + return BLOCK_NIL; } return NFTL_foldchain (nftl, LongestChain, pendingblock); @@ -578,7 +578,7 @@ static inline u16 NFTL_findwriteunit(struct NFTLrecord *nftl, unsigned block) printk(KERN_WARNING "Infinite loop in Virtual Unit Chain 0x%x\n", thisVUC); - return 0xffff; + return BLOCK_NIL; } /* Skip to next block in chain */ @@ -601,7 +601,7 @@ static inline u16 NFTL_findwriteunit(struct NFTLrecord *nftl, unsigned block) //u16 startEUN = nftl->EUNtable[thisVUC]; //printk("Write to VirtualUnitChain %d, calling makefreeblock()\n", thisVUC); - writeEUN = NFTL_makefreeblock(nftl, 0xffff); + writeEUN = NFTL_makefreeblock(nftl, BLOCK_NIL); if (writeEUN == BLOCK_NIL) { /* OK, we accept that the above comment is @@ -673,7 +673,7 @@ static inline u16 NFTL_findwriteunit(struct NFTLrecord *nftl, unsigned block) printk(KERN_WARNING "Error folding to make room for Virtual Unit Chain 0x%x\n", thisVUC); - return 0xffff; + return BLOCK_NIL; } static int nftl_writeblock(struct mtd_blktrans_dev *mbd, unsigned long block, -- cgit v1.2.3 From 9a24ee03aebc55cec00cc388b6727bff24ed433f Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Wed, 24 Jun 2009 17:13:48 +0100 Subject: [ARM] 5563/1: at91: at91sam9rlek lcd interface correction Here is a little update to the at91sam9rlek lcd interface. This will correct the power pin of the LCD. It will also add precision to the struct atmel_lcdfb_info scructure: backlight enabling and wiring mode correction: RGB wiring on the -EK board. Signed-off-by: Nicolas Ferre Acked-by: Andrew Victor Signed-off-by: Russell King --- arch/arm/mach-at91/board-sam9rlek.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-at91/board-sam9rlek.c b/arch/arm/mach-at91/board-sam9rlek.c index 35e12a49d1a..f6b5672cabd 100644 --- a/arch/arm/mach-at91/board-sam9rlek.c +++ b/arch/arm/mach-at91/board-sam9rlek.c @@ -186,19 +186,21 @@ static struct fb_monspecs at91fb_default_monspecs = { static void at91_lcdc_power_control(int on) { if (on) - at91_set_gpio_value(AT91_PIN_PA30, 0); /* power up */ + at91_set_gpio_value(AT91_PIN_PC1, 0); /* power up */ else - at91_set_gpio_value(AT91_PIN_PA30, 1); /* power down */ + at91_set_gpio_value(AT91_PIN_PC1, 1); /* power down */ } /* Driver datas */ static struct atmel_lcdfb_info __initdata ek_lcdc_data = { + .lcdcon_is_backlight = true, .default_bpp = 16, .default_dmacon = ATMEL_LCDC_DMAEN, .default_lcdcon2 = AT91SAM9RL_DEFAULT_LCDCON2, .default_monspecs = &at91fb_default_monspecs, .atmel_lcdfb_power_control = at91_lcdc_power_control, .guard_time = 1, + .lcd_wiring_mode = ATMEL_LCDC_WIRING_RGB, }; #else -- cgit v1.2.3 From 6e750a8fc009fd0ae98704525d1d8e80d60e8cc9 Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Sat, 27 Jun 2009 03:02:07 +0530 Subject: perf stat: Improve output Increase size for event name to handle bigger names like 'L1-d$-prefetch-misses' Changed scaled counters from percentage to a multiplicative factor because the latter is more expressive. Also aligned the scaling factor, otherwise sometimes it looks like: 384 iTLB-load-misses (4.74x scaled) 452029 branch-loads (8.00x scaled) 5892 branch-load-misses (20.39x scaled) 972315 iTLB-loads (3.24x scaled) Before: 150708 L1-d$-stores (scaled from 23.57%) 428804 L1-d$-prefetches (scaled from 23.47%) 314446 L1-d$-prefetch-misses (scaled from 23.42%) 252626137 L1-i$-loads (scaled from 23.24%) 5297550 dTLB-load-misses (scaled from 23.96%) 106992392 branch-loads (scaled from 23.67%) 5239561 branch-load-misses (scaled from 23.43%) After: 1731713 L1-d$-loads ( 14.25x scaled) 44241 L1-d$-prefetches ( 3.88x scaled) 21076 L1-d$-prefetch-misses ( 3.40x scaled) 5789421 L1-i$-loads ( 3.78x scaled) 29645 dTLB-load-misses ( 2.95x scaled) 461474 branch-loads ( 6.52x scaled) 7493 branch-load-misses ( 26.57x scaled) Reported-by: Ingo Molnar Signed-off-by: Jaswinder Singh Rajput Cc: Peter Zijlstra LKML-Reference: <1246051927.2988.10.camel@hpdv5.satnam> Signed-off-by: Ingo Molnar --- tools/perf/builtin-stat.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 52c176cc683..3840a70f05b 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -32,6 +32,7 @@ * Wu Fengguang * Mike Galbraith * Paul Mackerras + * Jaswinder Singh Rajput * * Released under the GPL v2. (and only v2, not any later version) */ @@ -251,7 +252,7 @@ static void nsec_printout(int counter, u64 *count, u64 *noise) { double msecs = (double)count[0] / 1000000; - fprintf(stderr, " %14.6f %-20s", msecs, event_name(counter)); + fprintf(stderr, " %14.6f %-24s", msecs, event_name(counter)); if (attrs[counter].type == PERF_TYPE_SOFTWARE && attrs[counter].config == PERF_COUNT_SW_TASK_CLOCK) { @@ -265,7 +266,7 @@ static void nsec_printout(int counter, u64 *count, u64 *noise) static void abs_printout(int counter, u64 *count, u64 *noise) { - fprintf(stderr, " %14Ld %-20s", count[0], event_name(counter)); + fprintf(stderr, " %14Ld %-24s", count[0], event_name(counter)); if (runtime_cycles_avg && attrs[counter].type == PERF_TYPE_HARDWARE && @@ -295,7 +296,7 @@ static void print_counter(int counter) scaled = event_scaled_avg[counter]; if (scaled == -1) { - fprintf(stderr, " %14s %-20s\n", + fprintf(stderr, " %14s %-24s\n", "", event_name(counter)); return; } @@ -306,8 +307,7 @@ static void print_counter(int counter) abs_printout(counter, count, noise); if (scaled) - fprintf(stderr, " (scaled from %.2f%%)", - (double) count[2] / count[1] * 100); + fprintf(stderr, " (%7.2fx scaled)", (double)count[1]/count[2]); fprintf(stderr, "\n"); } @@ -421,7 +421,6 @@ static void print_stat(int argc, const char **argv) for (counter = 0; counter < nr_counters; counter++) print_counter(counter); - fprintf(stderr, "\n"); fprintf(stderr, " %14.9f seconds time elapsed", (double)walltime_nsecs_avg/1e9); -- cgit v1.2.3 From a222ad1a4b2e3ca177a538482c99c519c1ce94d1 Mon Sep 17 00:00:00 2001 From: Karen Xie Date: Fri, 26 Jun 2009 15:17:29 -0700 Subject: [SCSI] cxgb3i: fix connection error when vlan is enabled There is a bug when VLAN is configured on the cxgb3 interface, the iscsi conn. would be denied with message "cxgb3i: NOT going through cxgbi device." This patch adds code to get the real egress net_device when vlan is configured. Signed-off-by: Karen Xie Reviewed-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/cxgb3i/cxgb3i_iscsi.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/scsi/cxgb3i/cxgb3i_iscsi.c b/drivers/scsi/cxgb3i/cxgb3i_iscsi.c index 74369a3f963..c399f485aa7 100644 --- a/drivers/scsi/cxgb3i/cxgb3i_iscsi.c +++ b/drivers/scsi/cxgb3i/cxgb3i_iscsi.c @@ -13,6 +13,7 @@ #include #include +#include #include #include #include @@ -184,6 +185,9 @@ static struct cxgb3i_hba *cxgb3i_hba_find_by_netdev(struct net_device *ndev) struct cxgb3i_adapter *snic; int i; + if (ndev->priv_flags & IFF_802_1Q_VLAN) + ndev = vlan_dev_real_dev(ndev); + read_lock(&cxgb3i_snic_rwlock); list_for_each_entry(snic, &cxgb3i_snic_list, list_head) { for (i = 0; i < snic->hba_cnt; i++) { -- cgit v1.2.3 From f0a71eb820596bd8f6abf64beb4cb181edaa2341 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Sat, 27 Jun 2009 07:04:55 -0400 Subject: cifs: fix fh_mutex locking in cifs_reopen_file Fixes a regression caused by commit a6ce4932fbdbcd8f8e8c6df76812014351c32892 When this lock was converted to a mutex, the locks were turned into unlocks and vice-versa. Signed-off-by: Jeff Layton Acked-by: Shirish Pargaonkar Cc: Stable Tree Signed-off-by: Steve French --- fs/cifs/file.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/fs/cifs/file.c b/fs/cifs/file.c index ebdbe62a829..97ce4bf89d1 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -493,9 +493,9 @@ static int cifs_reopen_file(struct file *file, bool can_flush) return -EBADF; xid = GetXid(); - mutex_unlock(&pCifsFile->fh_mutex); + mutex_lock(&pCifsFile->fh_mutex); if (!pCifsFile->invalidHandle) { - mutex_lock(&pCifsFile->fh_mutex); + mutex_unlock(&pCifsFile->fh_mutex); rc = 0; FreeXid(xid); return rc; @@ -527,7 +527,7 @@ static int cifs_reopen_file(struct file *file, bool can_flush) if (full_path == NULL) { rc = -ENOMEM; reopen_error_exit: - mutex_lock(&pCifsFile->fh_mutex); + mutex_unlock(&pCifsFile->fh_mutex); FreeXid(xid); return rc; } @@ -569,14 +569,14 @@ reopen_error_exit: cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); if (rc) { - mutex_lock(&pCifsFile->fh_mutex); + mutex_unlock(&pCifsFile->fh_mutex); cFYI(1, ("cifs_open returned 0x%x", rc)); cFYI(1, ("oplock: %d", oplock)); } else { reopen_success: pCifsFile->netfid = netfid; pCifsFile->invalidHandle = false; - mutex_lock(&pCifsFile->fh_mutex); + mutex_unlock(&pCifsFile->fh_mutex); pCifsInode = CIFS_I(inode); if (pCifsInode) { if (can_flush) { -- cgit v1.2.3 From ff8a4bae459a9b6455504127fcb78fdbc8e50e4c Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Sat, 27 Jun 2009 12:22:27 -0700 Subject: Revert "x86: cap iomem_resource to addressable physical memory" This reverts commit 95ee14e4379c5e19c0897c872350570402014742. Mikael Petterson reported that at least one of his systems will not boot as a result. We have ruled out the detection algorithm malfunctioning, so it is not a matter of producing the incorrect bitmasks; rather, something in the application of them fails. Revert the commit until we can root cause and correct this problem. -stable team: this means the underlying commit should be rejected. Reported-and-isolated-by: Mikael Petterson Signed-off-by: H. Peter Anvin LKML-Reference: <200906261559.n5QFxJH8027336@pilspetsen.it.uu.se> Cc: stable@kernel.org Cc: Grant Grundler --- arch/x86/kernel/cpu/common.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 6b26d4deada..f1961c07af9 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -848,9 +848,6 @@ static void __cpuinit identify_cpu(struct cpuinfo_x86 *c) #if defined(CONFIG_NUMA) && defined(CONFIG_X86_64) numa_add_cpu(smp_processor_id()); #endif - - /* Cap the iomem address space to what is addressable on all CPUs */ - iomem_resource.end &= (1ULL << c->x86_phys_bits) - 1; } #ifdef CONFIG_X86_64 -- cgit v1.2.3 From c276aca46d26aa2347320096f8ecdf5016795c14 Mon Sep 17 00:00:00 2001 From: vimal singh Date: Sat, 27 Jun 2009 11:07:06 +0530 Subject: mtd: nand: fix build failure and incorrect return from omap_wait() We need to include jiffies.h manually in some cases, and the status returned from omap_wait() was broken in two separate ways. Also add cond_resched() to the loop. Signed-off-by: Vimal Singh Signed-off-by: David Woodhouse --- drivers/mtd/nand/omap2.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c index 0cd76f89f4b..ebd07e95b81 100644 --- a/drivers/mtd/nand/omap2.c +++ b/drivers/mtd/nand/omap2.c @@ -11,6 +11,8 @@ #include #include #include +#include +#include #include #include #include @@ -541,7 +543,7 @@ static int omap_wait(struct mtd_info *mtd, struct nand_chip *chip) struct omap_nand_info *info = container_of(mtd, struct omap_nand_info, mtd); unsigned long timeo = jiffies; - int status, state = this->state; + int status = NAND_STATUS_FAIL, state = this->state; if (state == FL_ERASING) timeo += (HZ * 400) / 1000; @@ -556,8 +558,9 @@ static int omap_wait(struct mtd_info *mtd, struct nand_chip *chip) while (time_before(jiffies, timeo)) { status = __raw_readb(this->IO_ADDR_R); - if (!(status & 0x40)) + if (status & NAND_STATUS_READY) break; + cond_resched(); } return status; } -- cgit v1.2.3 From e244584fe3a5c20deddeca246548ac86dbc6e1d1 Mon Sep 17 00:00:00 2001 From: Izik Eidus Date: Wed, 10 Jun 2009 19:23:24 +0300 Subject: KVM: Fix dirty bit tracking for slots with large pages When slot is already allocated and being asked to be tracked we need to break the large pages. This code flush the mmu when someone ask a slot to start dirty bit tracking. Cc: stable@kernel.org Signed-off-by: Izik Eidus Signed-off-by: Avi Kivity --- virt/kvm/kvm_main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 764554350ed..013a5b3e9f7 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1194,6 +1194,8 @@ int __kvm_set_memory_region(struct kvm *kvm, if (!new.dirty_bitmap) goto out_free; memset(new.dirty_bitmap, 0, dirty_bytes); + if (old.npages) + kvm_arch_flush_shadow(kvm); } #endif /* not defined CONFIG_S390 */ -- cgit v1.2.3 From 29a4b9333bf9ffef12b3dd7cbf2e3dbe01152968 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Tue, 19 May 2009 13:29:27 +0300 Subject: KVM: MMU: Allow 4K ptes with bit 7 (PAT) set Bit 7 is perfectly legal in the 4K page leve; it is used for the PAT. Signed-off-by: Avi Kivity --- arch/x86/kvm/mmu.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 5c3d6e81a7d..7030b5f911b 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -2157,7 +2157,7 @@ static void reset_rsvds_bits_mask(struct kvm_vcpu *vcpu, int level) else /* 32 bits PSE 4MB page */ context->rsvd_bits_mask[1][1] = rsvd_bits(13, 21); - context->rsvd_bits_mask[1][0] = ~0ull; + context->rsvd_bits_mask[1][0] = context->rsvd_bits_mask[1][0]; break; case PT32E_ROOT_LEVEL: context->rsvd_bits_mask[0][2] = @@ -2170,7 +2170,7 @@ static void reset_rsvds_bits_mask(struct kvm_vcpu *vcpu, int level) context->rsvd_bits_mask[1][1] = exb_bit_rsvd | rsvd_bits(maxphyaddr, 62) | rsvd_bits(13, 20); /* large page */ - context->rsvd_bits_mask[1][0] = ~0ull; + context->rsvd_bits_mask[1][0] = context->rsvd_bits_mask[1][0]; break; case PT64_ROOT_LEVEL: context->rsvd_bits_mask[0][3] = exb_bit_rsvd | @@ -2186,7 +2186,7 @@ static void reset_rsvds_bits_mask(struct kvm_vcpu *vcpu, int level) context->rsvd_bits_mask[1][1] = exb_bit_rsvd | rsvd_bits(maxphyaddr, 51) | rsvd_bits(13, 20); /* large page */ - context->rsvd_bits_mask[1][0] = ~0ull; + context->rsvd_bits_mask[1][0] = context->rsvd_bits_mask[1][0]; break; } } -- cgit v1.2.3 From 84261923d3dddb766736023bead6fa07b7e218d5 Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Wed, 17 Jun 2009 10:53:47 -0300 Subject: KVM: protect concurrent make_all_cpus_request make_all_cpus_request contains a race condition which can trigger false request completed status, as follows: CPU0 CPU1 if (test_and_set_bit(req,&vcpu->requests)) .... if (test_and_set_bit(req,&vcpu->requests)) .. return proceed to smp_call_function_many(wait=1) Use a spinlock to serialize concurrent CPUs. Cc: stable@kernel.org Signed-off-by: Andrea Arcangeli Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity --- include/linux/kvm_host.h | 1 + virt/kvm/kvm_main.c | 3 +++ 2 files changed, 4 insertions(+) diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index aacc5449f58..16713dc672e 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -125,6 +125,7 @@ struct kvm_kernel_irq_routing_entry { struct kvm { struct mutex lock; /* protects the vcpus array and APIC accesses */ spinlock_t mmu_lock; + spinlock_t requests_lock; struct rw_semaphore slots_lock; struct mm_struct *mm; /* userspace tied to this vm */ int nmemslots; diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 013a5b3e9f7..2884baf1d5f 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -746,6 +746,7 @@ static bool make_all_cpus_request(struct kvm *kvm, unsigned int req) cpumask_clear(cpus); me = get_cpu(); + spin_lock(&kvm->requests_lock); for (i = 0; i < KVM_MAX_VCPUS; ++i) { vcpu = kvm->vcpus[i]; if (!vcpu) @@ -762,6 +763,7 @@ static bool make_all_cpus_request(struct kvm *kvm, unsigned int req) smp_call_function_many(cpus, ack_flush, NULL, 1); else called = false; + spin_unlock(&kvm->requests_lock); put_cpu(); free_cpumask_var(cpus); return called; @@ -982,6 +984,7 @@ static struct kvm *kvm_create_vm(void) kvm->mm = current->mm; atomic_inc(&kvm->mm->mm_count); spin_lock_init(&kvm->mmu_lock); + spin_lock_init(&kvm->requests_lock); kvm_io_bus_init(&kvm->pio_bus); mutex_init(&kvm->lock); kvm_io_bus_init(&kvm->mmio_bus); -- cgit v1.2.3 From ffdfa071bd6fa8f5e5964569bef41e067540d424 Mon Sep 17 00:00:00 2001 From: Jes Sorensen Date: Wed, 17 Jun 2009 11:08:08 +0200 Subject: KVM: ia64: fix ia64 build due to missing kallsyms_lookup() and double export Fix problem with double export of certain symbols from vsprintf.c which we do not wish to export from the kvm-intel.ko module. In addition, we do not have access to kallsyms_lookup() from the module, so make sure to #undef CONFIG_KALLSYMS Signed-off-by: Jes Sorensen Acked-by: Xiantao Zhang Signed-off-by: Avi Kivity --- arch/ia64/kvm/kvm_lib.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/ia64/kvm/kvm_lib.c b/arch/ia64/kvm/kvm_lib.c index a85cb611ecd..f1268b8e6f9 100644 --- a/arch/ia64/kvm/kvm_lib.c +++ b/arch/ia64/kvm/kvm_lib.c @@ -11,5 +11,11 @@ * */ #undef CONFIG_MODULES +#include +#undef CONFIG_KALLSYMS +#undef EXPORT_SYMBOL +#undef EXPORT_SYMBOL_GPL +#define EXPORT_SYMBOL(sym) +#define EXPORT_SYMBOL_GPL(sym) #include "../../../lib/vsprintf.c" #include "../../../lib/ctype.c" -- cgit v1.2.3 From a3f9d3981cd82d65232b733eb792382237d686bd Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Thu, 18 Jun 2009 16:53:25 +0530 Subject: KVM: kvm/x86_emulate.c toggle_interruptibility() should be static toggle_interruptibility() is used only by same file, it should be static. Fixed following sparse warning : arch/x86/kvm/x86_emulate.c:1364:6: warning: symbol 'toggle_interruptibility' was not declared. Should it be static? Signed-off-by: Jaswinder Singh Rajput Signed-off-by: Avi Kivity --- arch/x86/kvm/x86_emulate.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/x86_emulate.c b/arch/x86/kvm/x86_emulate.c index c1b6c232e02..616de4628d6 100644 --- a/arch/x86/kvm/x86_emulate.c +++ b/arch/x86/kvm/x86_emulate.c @@ -1361,7 +1361,7 @@ static inline int writeback(struct x86_emulate_ctxt *ctxt, return 0; } -void toggle_interruptibility(struct x86_emulate_ctxt *ctxt, u32 mask) +static void toggle_interruptibility(struct x86_emulate_ctxt *ctxt, u32 mask) { u32 int_shadow = kvm_x86_ops->get_interrupt_shadow(ctxt->vcpu, mask); /* -- cgit v1.2.3 From ef50f7ac7e234f9696555e41eab3de69c3d86166 Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Tue, 23 Jun 2009 17:24:07 +0200 Subject: KVM: s390: Allow stfle instruction in the guest 2.6.31-rc introduced an architecture level set checker based on facility bits. e.g. if the kernel is compiled to run only on z9, several facility bits are checked very early and the kernel refuses to boot if a z9 specific facility is missing. Until now kvm on s390 did not implement the store facility extended (STFLE) instruction. A 2.6.31-rc kernel that was compiled for z9 or higher did not boot in kvm. This patch implements stfle. This patch should go in before 2.6.31. Signed-off-by: Christian Borntraeger Signed-off-by: Avi Kivity --- arch/s390/include/asm/kvm_host.h | 4 +++- arch/s390/kvm/kvm-s390.c | 23 ++++++++++++++++++++++- arch/s390/kvm/priv.c | 2 +- 3 files changed, 26 insertions(+), 3 deletions(-) diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h index a27d0d5a6f8..1cd02f6073a 100644 --- a/arch/s390/include/asm/kvm_host.h +++ b/arch/s390/include/asm/kvm_host.h @@ -99,7 +99,9 @@ struct kvm_s390_sie_block { __u8 reservedd0[48]; /* 0x00d0 */ __u64 gcr[16]; /* 0x0100 */ __u64 gbea; /* 0x0180 */ - __u8 reserved188[120]; /* 0x0188 */ + __u8 reserved188[24]; /* 0x0188 */ + __u32 fac; /* 0x01a0 */ + __u8 reserved1a4[92]; /* 0x01a4 */ } __attribute__((packed)); struct kvm_vcpu_stat { diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index c18b21d6991..90d9d1ba258 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -25,6 +25,7 @@ #include #include #include +#include #include "kvm-s390.h" #include "gaccess.h" @@ -69,6 +70,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = { { NULL } }; +static unsigned long long *facilities; /* Section: not file related */ void kvm_arch_hardware_enable(void *garbage) @@ -288,6 +290,7 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) vcpu->arch.sie_block->gmsor = vcpu->kvm->arch.guest_origin; vcpu->arch.sie_block->ecb = 2; vcpu->arch.sie_block->eca = 0xC1002001U; + vcpu->arch.sie_block->fac = (int) (long) facilities; hrtimer_init(&vcpu->arch.ckc_timer, CLOCK_REALTIME, HRTIMER_MODE_ABS); tasklet_init(&vcpu->arch.tasklet, kvm_s390_tasklet, (unsigned long) vcpu); @@ -739,11 +742,29 @@ gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn) static int __init kvm_s390_init(void) { - return kvm_init(NULL, sizeof(struct kvm_vcpu), THIS_MODULE); + int ret; + ret = kvm_init(NULL, sizeof(struct kvm_vcpu), THIS_MODULE); + if (ret) + return ret; + + /* + * guests can ask for up to 255+1 double words, we need a full page + * to hold the maximum amount of facilites. On the other hand, we + * only set facilities that are known to work in KVM. + */ + facilities = (unsigned long long *) get_zeroed_page(GFP_DMA); + if (!facilities) { + kvm_exit(); + return -ENOMEM; + } + stfle(facilities, 1); + facilities[0] &= 0xff00fff3f0700000ULL; + return 0; } static void __exit kvm_s390_exit(void) { + free_page((unsigned long) facilities); kvm_exit(); } diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c index 93ecd06e1a7..d426aac8095 100644 --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -158,7 +158,7 @@ static int handle_stfl(struct kvm_vcpu *vcpu) vcpu->stat.instruction_stfl++; /* only pass the facility bits, which we can handle */ - facility_list &= 0xfe00fff3; + facility_list &= 0xff00fff3; rc = copy_to_guest(vcpu, offsetof(struct _lowcore, stfl_fac_list), &facility_list, sizeof(facility_list)); -- cgit v1.2.3 From e3c7cb6ad7191e92ba89d00a7ae5f5dd1ca0c214 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Tue, 16 Jun 2009 14:19:52 +0300 Subject: KVM: VMX: Handle vmx instruction vmexits IF a guest tries to use vmx instructions, inject a #UD to let it know the instruction is not implemented, rather than crashing. This prevents guest userspace from crashing the guest kernel. Cc: stable@kernel.org Signed-off-by: Avi Kivity --- arch/x86/kvm/vmx.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index e770bf349ec..356a0ce85c6 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -3012,6 +3012,12 @@ static int handle_vmcall(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) return 1; } +static int handle_vmx_insn(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) +{ + kvm_queue_exception(vcpu, UD_VECTOR); + return 1; +} + static int handle_invlpg(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) { unsigned long exit_qualification = vmcs_readl(EXIT_QUALIFICATION); @@ -3198,6 +3204,15 @@ static int (*kvm_vmx_exit_handlers[])(struct kvm_vcpu *vcpu, [EXIT_REASON_HLT] = handle_halt, [EXIT_REASON_INVLPG] = handle_invlpg, [EXIT_REASON_VMCALL] = handle_vmcall, + [EXIT_REASON_VMCLEAR] = handle_vmx_insn, + [EXIT_REASON_VMLAUNCH] = handle_vmx_insn, + [EXIT_REASON_VMPTRLD] = handle_vmx_insn, + [EXIT_REASON_VMPTRST] = handle_vmx_insn, + [EXIT_REASON_VMREAD] = handle_vmx_insn, + [EXIT_REASON_VMRESUME] = handle_vmx_insn, + [EXIT_REASON_VMWRITE] = handle_vmx_insn, + [EXIT_REASON_VMOFF] = handle_vmx_insn, + [EXIT_REASON_VMON] = handle_vmx_insn, [EXIT_REASON_TPR_BELOW_THRESHOLD] = handle_tpr_below_threshold, [EXIT_REASON_APIC_ACCESS] = handle_apic_access, [EXIT_REASON_WBINVD] = handle_wbinvd, -- cgit v1.2.3 From 9e6996240afcbe61682eab8eeaeb65c34333164d Mon Sep 17 00:00:00 2001 From: Amit Shah Date: Mon, 15 Jun 2009 13:25:34 +0530 Subject: KVM: Ignore reads to K7 EVNTSEL MSRs In commit 7fe29e0faacb650d31b9e9f538203a157bec821d we ignored the reads to the P6 EVNTSEL MSRs. That fixed crashes on Intel machines. Ignore the reads to K7 EVNTSEL MSRs as well to fix this on AMD hosts. This fixes Kaspersky antivirus crashing Windows guests on AMD hosts. Signed-off-by: Amit Shah Signed-off-by: Avi Kivity --- arch/x86/kvm/x86.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 249540f9851..fe5474aec41 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -898,6 +898,7 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata) case MSR_VM_HSAVE_PA: case MSR_P6_EVNTSEL0: case MSR_P6_EVNTSEL1: + case MSR_K7_EVNTSEL0: data = 0; break; case MSR_MTRRcap: -- cgit v1.2.3 From bde892232532ed522bb56b04576d07f91e59b3c7 Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Wed, 20 May 2009 09:59:35 +0530 Subject: KVM: shut up uninit compiler warning in paging_tmpl.h MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Dixes compilation warning: CC arch/x86/kernel/io_delay.o arch/x86/kvm/paging_tmpl.h: In function ‘paging64_fetch’: arch/x86/kvm/paging_tmpl.h:279: warning: ‘sptep’ may be used uninitialized in this function arch/x86/kvm/paging_tmpl.h: In function ‘paging32_fetch’: arch/x86/kvm/paging_tmpl.h:279: warning: ‘sptep’ may be used uninitialized in this function warning is bogus (always have a least one level), but need to shut the compiler up. Signed-off-by: Jaswinder Singh Rajput Signed-off-by: Avi Kivity --- arch/x86/kvm/paging_tmpl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h index 258e4591e1c..67785f63539 100644 --- a/arch/x86/kvm/paging_tmpl.h +++ b/arch/x86/kvm/paging_tmpl.h @@ -281,7 +281,7 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr, { unsigned access = gw->pt_access; struct kvm_mmu_page *shadow_page; - u64 spte, *sptep; + u64 spte, *sptep = NULL; int direct; gfn_t table_gfn; int r; -- cgit v1.2.3 From c3043569dc8fbe9228b76174f15d1a7152c48a20 Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Sat, 27 Jun 2009 23:49:09 +0530 Subject: perf stat: Micro-optimize the code: memcpy is only required if no event is selected and !null_run Set attrs and nr_counters if no event is selected and !null_run. Setting of attrs should depend on number of counters, so we need to memcpy only for sizeof(default_attrs) Also set nr_counters as ARRAY_SIZE(default_attrs) in place of hardcoded value. Signed-off-by: Jaswinder Singh Rajput Cc: Peter Zijlstra LKML-Reference: <1246126749.32198.16.camel@hpdv5.satnam> Signed-off-by: Ingo Molnar --- tools/perf/builtin-stat.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 3840a70f05b..3e5ea4e2e5f 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -46,7 +46,7 @@ #include #include -static struct perf_counter_attr default_attrs[MAX_COUNTERS] = { +static struct perf_counter_attr default_attrs[] = { { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK }, { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES}, @@ -477,16 +477,17 @@ int cmd_stat(int argc, const char **argv, const char *prefix) { int status; - memcpy(attrs, default_attrs, sizeof(attrs)); - argc = parse_options(argc, argv, options, stat_usage, 0); if (!argc) usage_with_options(stat_usage, options); if (run_count <= 0 || run_count > MAX_RUN) usage_with_options(stat_usage, options); - if (!null_run && !nr_counters) - nr_counters = 8; + /* Set attrs and nr_counters if no event is selected and !null_run */ + if (!null_run && !nr_counters) { + memcpy(attrs, default_attrs, sizeof(default_attrs)); + nr_counters = ARRAY_SIZE(default_attrs); + } nr_cpus = sysconf(_SC_NPROCESSORS_ONLN); assert(nr_cpus <= MAX_NR_CPUS); -- cgit v1.2.3 From 46690f3718d95e9bb712b6f2b5c869f8494521de Mon Sep 17 00:00:00 2001 From: Mimi Zohar Date: Fri, 26 Jun 2009 11:24:05 -0400 Subject: integrity: ima mq_open imbalance msg fix This patch fixes an imbalance message as reported by Sanchin Sant. As we don't need to measure the message queue, just increment the counters. Reported-by: Sanchin Sant Signed-off-by: Mimi Zohar Acked-by: Serge Hallyn Signed-off-by: James Morris --- ipc/mqueue.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/ipc/mqueue.c b/ipc/mqueue.c index e35ba2c3a8d..c5e68adc673 100644 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include "util.h" @@ -733,6 +734,7 @@ SYSCALL_DEFINE4(mq_open, const char __user *, u_name, int, oflag, mode_t, mode, error = PTR_ERR(filp); goto out_putfd; } + ima_counts_get(filp); fd_install(fd, filp); goto out_upsem; -- cgit v1.2.3 From 79b854c549c62c54fa27f87e04465c01db889f8d Mon Sep 17 00:00:00 2001 From: Mimi Zohar Date: Fri, 26 Jun 2009 11:25:00 -0400 Subject: integrity: ima audit hash_exists fix Audit the file name, not the template name. Signed-off-by: Mimi Zohar Signed-off-by: James Morris --- security/integrity/ima/ima_queue.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/security/integrity/ima/ima_queue.c b/security/integrity/ima/ima_queue.c index 7ec94314ac0..a0880e9c8e0 100644 --- a/security/integrity/ima/ima_queue.c +++ b/security/integrity/ima/ima_queue.c @@ -134,7 +134,8 @@ int ima_add_template_entry(struct ima_template_entry *entry, int violation, } out: mutex_unlock(&ima_extend_list_mutex); - integrity_audit_msg(AUDIT_INTEGRITY_PCR, inode, entry->template_name, + integrity_audit_msg(AUDIT_INTEGRITY_PCR, inode, + entry->template.file_name, op, audit_cause, result, audit_info); return result; } -- cgit v1.2.3 From 94e5d714f604d4cb4cb13163f01ede278e69258b Mon Sep 17 00:00:00 2001 From: Mimi Zohar Date: Fri, 26 Jun 2009 14:05:27 -0400 Subject: integrity: add ima_counts_put (updated) This patch fixes an imbalance message as reported by J.R. Okajima. The IMA file counters are incremented in ima_path_check. If the actual open fails, such as ETXTBSY, decrement the counters to prevent unnecessary imbalance messages. Reported-by: J.R. Okajima Signed-off-by: Mimi Zohar Signed-off-by: James Morris --- fs/namei.c | 7 +++++++ include/linux/ima.h | 6 ++++++ security/integrity/ima/ima_main.c | 29 ++++++++++++++++++++++++++++- 3 files changed, 41 insertions(+), 1 deletion(-) diff --git a/fs/namei.c b/fs/namei.c index 5b961eb71cb..f3c5b278895 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -1761,6 +1761,10 @@ do_last: goto exit; } filp = nameidata_to_filp(&nd, open_flag); + if (IS_ERR(filp)) + ima_counts_put(&nd.path, + acc_mode & (MAY_READ | MAY_WRITE | + MAY_EXEC)); mnt_drop_write(nd.path.mnt); if (nd.root.mnt) path_put(&nd.root); @@ -1817,6 +1821,9 @@ ok: goto exit; } filp = nameidata_to_filp(&nd, open_flag); + if (IS_ERR(filp)) + ima_counts_put(&nd.path, + acc_mode & (MAY_READ | MAY_WRITE | MAY_EXEC)); /* * It is now safe to drop the mnt write * because the filp has had a write taken diff --git a/include/linux/ima.h b/include/linux/ima.h index b1b827d091a..0e3f2a4c25f 100644 --- a/include/linux/ima.h +++ b/include/linux/ima.h @@ -24,6 +24,7 @@ extern int ima_path_check(struct path *path, int mask, int update_counts); extern void ima_file_free(struct file *file); extern int ima_file_mmap(struct file *file, unsigned long prot); extern void ima_counts_get(struct file *file); +extern void ima_counts_put(struct path *path, int mask); #else static inline int ima_bprm_check(struct linux_binprm *bprm) @@ -60,5 +61,10 @@ static inline void ima_counts_get(struct file *file) { return; } + +static inline void ima_counts_put(struct path *path, int mask) +{ + return; +} #endif /* CONFIG_IMA_H */ #endif /* _LINUX_IMA_H */ diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c index 6f611874d10..101c512564e 100644 --- a/security/integrity/ima/ima_main.c +++ b/security/integrity/ima/ima_main.c @@ -238,7 +238,34 @@ out: } /* - * ima_opens_get - increment file counts + * ima_counts_put - decrement file counts + * + * File counts are incremented in ima_path_check. On file open + * error, such as ETXTBSY, decrement the counts to prevent + * unnecessary imbalance messages. + */ +void ima_counts_put(struct path *path, int mask) +{ + struct inode *inode = path->dentry->d_inode; + struct ima_iint_cache *iint; + + if (!ima_initialized || !S_ISREG(inode->i_mode)) + return; + iint = ima_iint_find_insert_get(inode); + if (!iint) + return; + + mutex_lock(&iint->mutex); + iint->opencount--; + if ((mask & MAY_WRITE) || (mask == 0)) + iint->writecount--; + else if (mask & (MAY_READ | MAY_EXEC)) + iint->readcount--; + mutex_unlock(&iint->mutex); +} + +/* + * ima_counts_get - increment file counts * * - for IPC shm and shmat file. * - for nfsd exported files. -- cgit v1.2.3 From 684a88429c5ab04d8b1894de9a1ef62de6f601b7 Mon Sep 17 00:00:00 2001 From: Tony Vroon Date: Fri, 26 Jun 2009 09:27:50 +0100 Subject: ALSA: hda - Line In for Acer Inspire 6530G model The Line In connector is set up as PIN_IN by default, using VREF_HIZ. It is connected to both ADCs, so add it to both input selectors. Also add the ability to use the input mix (on a SoundBlaster one would call this "What You Hear"). Signed-off-by: Tony Vroon Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 2ed514030e7..08846d222cb 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -1569,18 +1569,22 @@ static struct hda_input_mux alc888_2_capture_sources[2] = { static struct hda_input_mux alc888_acer_aspire_6530_sources[2] = { /* Interal mic only available on one ADC */ { - .num_items = 3, + .num_items = 5, .items = { { "Ext Mic", 0x0 }, + { "Line In", 0x2 }, { "CD", 0x4 }, + { "Input Mix", 0xa }, { "Int Mic", 0xb }, }, }, { - .num_items = 2, + .num_items = 4, .items = { { "Ext Mic", 0x0 }, + { "Line In", 0x2 }, { "CD", 0x4 }, + { "Input Mix", 0xa }, }, } }; @@ -8209,6 +8213,8 @@ static struct snd_kcontrol_new alc888_acer_aspire_6530_mixer[] = { HDA_BIND_MUTE("Front Playback Switch", 0x0c, 2, HDA_INPUT), HDA_CODEC_VOLUME("LFE Playback Volume", 0x0f, 0x0, HDA_OUTPUT), HDA_BIND_MUTE("LFE Playback Switch", 0x0f, 2, HDA_INPUT), + HDA_CODEC_VOLUME("Line Playback Volume", 0x0b, 0x02, HDA_INPUT), + HDA_CODEC_MUTE("Line Playback Switch", 0x0b, 0x02, HDA_INPUT), HDA_CODEC_VOLUME("CD Playback Volume", 0x0b, 0x04, HDA_INPUT), HDA_CODEC_MUTE("CD Playback Switch", 0x0b, 0x04, HDA_INPUT), HDA_CODEC_VOLUME("Mic Playback Volume", 0x0b, 0x0, HDA_INPUT), -- cgit v1.2.3 From c2a30d711852e4f39c8a79135b3caa701f7a8e02 Mon Sep 17 00:00:00 2001 From: Ondrej Zary Date: Sat, 27 Jun 2009 16:17:08 +0200 Subject: ALSA: cmi8330: fix MPU-401 PnP init copy&paste bug Fix copy&paste bug in PnP MPU-401 initialization. Signed-off-by: Ondrej Zary Cc: Signed-off-by: Takashi Iwai --- sound/isa/cmi8330.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/isa/cmi8330.c b/sound/isa/cmi8330.c index de83608719e..3ee0269e5bd 100644 --- a/sound/isa/cmi8330.c +++ b/sound/isa/cmi8330.c @@ -338,7 +338,7 @@ static int __devinit snd_cmi8330_pnp(int dev, struct snd_cmi8330 *acard, return -EBUSY; acard->mpu = pnp_request_card_device(card, id->devs[2].id, NULL); - if (acard->play == NULL) + if (acard->mpu == NULL) return -EBUSY; pdev = acard->cap; -- cgit v1.2.3 From ec5a36f94e7ca4b1f28ae4dd135cd415a704e772 Mon Sep 17 00:00:00 2001 From: Pekka Enberg Date: Mon, 29 Jun 2009 09:57:10 +0300 Subject: SLAB: Fix lockdep annotations Commit 8429db5... ("slab: setup cpu caches later on when interrupts are enabled") broke mm/slab.c lockdep annotations: [ 11.554715] ============================================= [ 11.555249] [ INFO: possible recursive locking detected ] [ 11.555560] 2.6.31-rc1 #896 [ 11.555861] --------------------------------------------- [ 11.556127] udevd/1899 is trying to acquire lock: [ 11.556436] (&nc->lock){-.-...}, at: [] kmem_cache_free+0xcd/0x25b [ 11.557101] [ 11.557102] but task is already holding lock: [ 11.557706] (&nc->lock){-.-...}, at: [] kfree+0x137/0x292 [ 11.558109] [ 11.558109] other info that might help us debug this: [ 11.558720] 2 locks held by udevd/1899: [ 11.558983] #0: (&nc->lock){-.-...}, at: [] kfree+0x137/0x292 [ 11.559734] #1: (&parent->list_lock){-.-...}, at: [] __drain_alien_cache+0x3b/0xbd [ 11.560442] [ 11.560443] stack backtrace: [ 11.561009] Pid: 1899, comm: udevd Not tainted 2.6.31-rc1 #896 [ 11.561276] Call Trace: [ 11.561632] [] __lock_acquire+0x15ec/0x168f [ 11.561901] [] ? __lock_acquire+0x1676/0x168f [ 11.562171] [] ? trace_hardirqs_on_caller+0x113/0x13e [ 11.562490] [] ? trace_hardirqs_on_thunk+0x3a/0x3f [ 11.562807] [] lock_acquire+0xc1/0xe5 [ 11.563073] [] ? kmem_cache_free+0xcd/0x25b [ 11.563385] [] _spin_lock+0x31/0x66 [ 11.563696] [] ? kmem_cache_free+0xcd/0x25b [ 11.563964] [] kmem_cache_free+0xcd/0x25b [ 11.564235] [] ? __free_pages+0x1b/0x24 [ 11.564551] [] slab_destroy+0x57/0x5c [ 11.564860] [] free_block+0xd8/0x123 [ 11.565126] [] __drain_alien_cache+0xa2/0xbd [ 11.565441] [] kfree+0x14c/0x292 [ 11.565752] [] skb_release_data+0xc6/0xcb [ 11.566020] [] __kfree_skb+0x19/0x86 [ 11.566286] [] consume_skb+0x2b/0x2d [ 11.566631] [] skb_free_datagram+0x14/0x3a [ 11.566901] [] netlink_recvmsg+0x164/0x258 [ 11.567170] [] sock_recvmsg+0xe5/0xfe [ 11.567486] [] ? might_fault+0xaf/0xb1 [ 11.567802] [] ? autoremove_wake_function+0x0/0x38 [ 11.568073] [] ? core_sys_select+0x3d/0x2b4 [ 11.568378] [] ? __lock_acquire+0x1676/0x168f [ 11.568693] [] ? sockfd_lookup_light+0x1b/0x54 [ 11.568961] [] sys_recvfrom+0xa3/0xf8 [ 11.569228] [] ? trace_hardirqs_on+0xd/0xf [ 11.569546] [] system_call_fastpath+0x16/0x1b# Fix that up. Closes-bug: http://bugzilla.kernel.org/show_bug.cgi?id=13654 Tested-by: Venkatesh Pallipadi Signed-off-by: Pekka Enberg --- mm/slab.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/mm/slab.c b/mm/slab.c index 5241b6598ba..7b5d4deacfc 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -1544,9 +1544,6 @@ void __init kmem_cache_init(void) } g_cpucache_up = EARLY; - - /* Annotate slab for lockdep -- annotate the malloc caches */ - init_lock_keys(); } void __init kmem_cache_init_late(void) @@ -1563,6 +1560,9 @@ void __init kmem_cache_init_late(void) /* Done! */ g_cpucache_up = FULL; + /* Annotate slab for lockdep -- annotate the malloc caches */ + init_lock_keys(); + /* * Register a cpu startup notifier callback that initializes * cpu_cache_get for all new cpus -- cgit v1.2.3 From 9230ccb1071d2d7e4ecb6314e67203b9f7f08140 Mon Sep 17 00:00:00 2001 From: Yan Li Date: Sun, 28 Jun 2009 22:30:56 -0700 Subject: Input: i8042 - more reset quirks for MSI Wind-clone netbooks When testing Moblin on various netbooks, we've got reports that many MSI Wind clones need the i8042 reset quirks for the keyboard and/or touchpad's proper function. Signed-off-by: Yan Li Signed-off-by: Andrew Morton Signed-off-by: Dmitry Torokhov --- drivers/input/serio/i8042-x86ia64io.h | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h index fb8a3cd3ffd..924e8ed7f2c 100644 --- a/drivers/input/serio/i8042-x86ia64io.h +++ b/drivers/input/serio/i8042-x86ia64io.h @@ -392,6 +392,34 @@ static struct dmi_system_id __initdata i8042_dmi_reset_table[] = { DMI_MATCH(DMI_BOARD_VENDOR, "LG Electronics Inc."), }, }, + { + .ident = "Acer Aspire One 150", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"), + }, + }, + { + .ident = "Advent 4211", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "DIXONSXP"), + DMI_MATCH(DMI_PRODUCT_NAME, "Advent 4211"), + }, + }, + { + .ident = "Medion Akoya Mini E1210", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "MEDION"), + DMI_MATCH(DMI_PRODUCT_NAME, "E1210"), + }, + }, + { + .ident = "Mivvy M310", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "VIOOO"), + DMI_MATCH(DMI_PRODUCT_NAME, "N10"), + }, + }, { } }; -- cgit v1.2.3 From c413ec446188ae53276eb60a60311b430448c6b0 Mon Sep 17 00:00:00 2001 From: Ping Cheng Date: Sun, 28 Jun 2009 22:50:58 -0700 Subject: Input: wacom - add DTF720a support and fix rotation on Intuos3 This patch adds DTF720a support and fixes an Intuos3 rotation pen out-proximity bug. Signed-off-by: Ping Cheng Signed-off-by: Dmitry Torokhov --- drivers/input/tablet/wacom_wac.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index 38bf86384ae..c896d6a21b7 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -384,6 +384,8 @@ static int wacom_intuos_inout(struct wacom_wac *wacom, void *wcombo) wacom_report_key(wcombo, BTN_STYLUS2, 0); wacom_report_key(wcombo, BTN_TOUCH, 0); wacom_report_abs(wcombo, ABS_WHEEL, 0); + if (wacom->features->type >= INTUOS3S) + wacom_report_abs(wcombo, ABS_Z, 0); } wacom_report_key(wcombo, wacom->tool[idx], 0); wacom_report_abs(wcombo, ABS_MISC, 0); /* reset tool id */ @@ -836,6 +838,7 @@ static struct wacom_features wacom_features[] = { { "Wacom DTU710", 8, 34080, 27660, 511, 0, PL }, { "Wacom DTF521", 8, 6282, 4762, 511, 0, PL }, { "Wacom DTF720", 8, 6858, 5506, 511, 0, PL }, + { "Wacom DTF720a", 8, 6858, 5506, 511, 0, PL }, { "Wacom Cintiq Partner",8, 20480, 15360, 511, 0, PTU }, { "Wacom Intuos2 4x5", 10, 12700, 10600, 1023, 31, INTUOS }, { "Wacom Intuos2 6x8", 10, 20320, 16240, 1023, 31, INTUOS }, @@ -897,8 +900,9 @@ static struct usb_device_id wacom_ids[] = { { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x37) }, { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x38) }, { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x39) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC0) }, { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC4) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC0) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC2) }, { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x03) }, { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x41) }, { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x42) }, -- cgit v1.2.3 From 00b8ac409cad653137f087e3ff69c020174cbc15 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Sun, 28 Jun 2009 22:30:56 -0700 Subject: Input: dm355evm_keys - fix kconfig symbol names The keypad driver for the DM355 EVM got slightly broken as it merged, since it moved from input/keyboard to input/misc and its Kconfig symbol changed. This patch copes with the changed Kconfig symbol. Signed-off-by: David Brownell Signed-off-by: Dmitry Torokhov --- drivers/mfd/dm355evm_msp.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/mfd/dm355evm_msp.c b/drivers/mfd/dm355evm_msp.c index 7ac12cb0be4..5b6e58a3ba4 100644 --- a/drivers/mfd/dm355evm_msp.c +++ b/drivers/mfd/dm355evm_msp.c @@ -32,8 +32,7 @@ * This driver was tested with firmware revision A4. */ -#if defined(CONFIG_KEYBOARD_DM355EVM) \ - || defined(CONFIG_KEYBOARD_DM355EVM_MODULE) +#if defined(CONFIG_INPUT_DM355EVM) || defined(CONFIG_INPUT_DM355EVM_MODULE) #define msp_has_keyboard() true #else #define msp_has_keyboard() false -- cgit v1.2.3 From ca865a77b5949f5c403e0f13de5a5a9cd499a11e Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Sun, 28 Jun 2009 22:38:44 -0700 Subject: Input: gpio-keys - revert 'change timer to workqueue' This reverts commit 0b346838c5862bfe911432956a106d602535d030. This commit breaks GPIO debouncing by replacing the original mod_timer with schedule_delayed_work in the interrupt handler. The latter does not kick the timer further on GPIO line changes as it should to perform debouncing. Signed-off-by: Jani Nikula Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/gpio_keys.c | 32 ++++++++++++++++++++------------ 1 file changed, 20 insertions(+), 12 deletions(-) diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c index 2157cd7de00..9767213b6c8 100644 --- a/drivers/input/keyboard/gpio_keys.c +++ b/drivers/input/keyboard/gpio_keys.c @@ -22,14 +22,13 @@ #include #include #include -#include #include struct gpio_button_data { struct gpio_keys_button *button; struct input_dev *input; - struct delayed_work work; + struct timer_list timer; }; struct gpio_keys_drvdata { @@ -37,10 +36,8 @@ struct gpio_keys_drvdata { struct gpio_button_data data[0]; }; -static void gpio_keys_report_event(struct work_struct *work) +static void gpio_keys_report_event(struct gpio_button_data *bdata) { - struct gpio_button_data *bdata = - container_of(work, struct gpio_button_data, work.work); struct gpio_keys_button *button = bdata->button; struct input_dev *input = bdata->input; unsigned int type = button->type ?: EV_KEY; @@ -50,17 +47,25 @@ static void gpio_keys_report_event(struct work_struct *work) input_sync(input); } +static void gpio_check_button(unsigned long _data) +{ + struct gpio_button_data *data = (struct gpio_button_data *)_data; + + gpio_keys_report_event(data); +} + static irqreturn_t gpio_keys_isr(int irq, void *dev_id) { struct gpio_button_data *bdata = dev_id; struct gpio_keys_button *button = bdata->button; - unsigned long delay; BUG_ON(irq != gpio_to_irq(button->gpio)); - delay = button->debounce_interval ? - msecs_to_jiffies(button->debounce_interval) : 0; - schedule_delayed_work(&bdata->work, delay); + if (button->debounce_interval) + mod_timer(&bdata->timer, + jiffies + msecs_to_jiffies(button->debounce_interval)); + else + gpio_keys_report_event(bdata); return IRQ_HANDLED; } @@ -107,7 +112,8 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev) bdata->input = input; bdata->button = button; - INIT_DELAYED_WORK(&bdata->work, gpio_keys_report_event); + setup_timer(&bdata->timer, + gpio_check_button, (unsigned long)bdata); error = gpio_request(button->gpio, button->desc ?: "gpio_keys"); if (error < 0) { @@ -166,7 +172,8 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev) fail2: while (--i >= 0) { free_irq(gpio_to_irq(pdata->buttons[i].gpio), &ddata->data[i]); - cancel_delayed_work_sync(&ddata->data[i].work); + if (pdata->buttons[i].debounce_interval) + del_timer_sync(&ddata->data[i].timer); gpio_free(pdata->buttons[i].gpio); } @@ -190,7 +197,8 @@ static int __devexit gpio_keys_remove(struct platform_device *pdev) for (i = 0; i < pdata->nbuttons; i++) { int irq = gpio_to_irq(pdata->buttons[i].gpio); free_irq(irq, &ddata->data[i]); - cancel_delayed_work_sync(&ddata->data[i].work); + if (pdata->buttons[i].debounce_interval) + del_timer_sync(&ddata->data[i].timer); gpio_free(pdata->buttons[i].gpio); } -- cgit v1.2.3 From da0d03fe6cecde837f113a8a587f5a872d0fade0 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Sun, 28 Jun 2009 22:38:56 -0700 Subject: Input: gpio-keys - avoid possibility of sleeping in timer function The gpio_get_value function may sleep, so it should not be called in a timer function. Move gpio_get_value calls to workqueue. Signed-off-by: Jani Nikula Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/gpio_keys.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c index 9767213b6c8..efed0c9e242 100644 --- a/drivers/input/keyboard/gpio_keys.c +++ b/drivers/input/keyboard/gpio_keys.c @@ -22,6 +22,7 @@ #include #include #include +#include #include @@ -29,6 +30,7 @@ struct gpio_button_data { struct gpio_keys_button *button; struct input_dev *input; struct timer_list timer; + struct work_struct work; }; struct gpio_keys_drvdata { @@ -36,8 +38,10 @@ struct gpio_keys_drvdata { struct gpio_button_data data[0]; }; -static void gpio_keys_report_event(struct gpio_button_data *bdata) +static void gpio_keys_report_event(struct work_struct *work) { + struct gpio_button_data *bdata = + container_of(work, struct gpio_button_data, work); struct gpio_keys_button *button = bdata->button; struct input_dev *input = bdata->input; unsigned int type = button->type ?: EV_KEY; @@ -47,11 +51,11 @@ static void gpio_keys_report_event(struct gpio_button_data *bdata) input_sync(input); } -static void gpio_check_button(unsigned long _data) +static void gpio_keys_timer(unsigned long _data) { struct gpio_button_data *data = (struct gpio_button_data *)_data; - gpio_keys_report_event(data); + schedule_work(&data->work); } static irqreturn_t gpio_keys_isr(int irq, void *dev_id) @@ -65,7 +69,7 @@ static irqreturn_t gpio_keys_isr(int irq, void *dev_id) mod_timer(&bdata->timer, jiffies + msecs_to_jiffies(button->debounce_interval)); else - gpio_keys_report_event(bdata); + schedule_work(&bdata->work); return IRQ_HANDLED; } @@ -113,7 +117,8 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev) bdata->input = input; bdata->button = button; setup_timer(&bdata->timer, - gpio_check_button, (unsigned long)bdata); + gpio_keys_timer, (unsigned long)bdata); + INIT_WORK(&bdata->work, gpio_keys_report_event); error = gpio_request(button->gpio, button->desc ?: "gpio_keys"); if (error < 0) { @@ -174,6 +179,7 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev) free_irq(gpio_to_irq(pdata->buttons[i].gpio), &ddata->data[i]); if (pdata->buttons[i].debounce_interval) del_timer_sync(&ddata->data[i].timer); + cancel_work_sync(&ddata->data[i].work); gpio_free(pdata->buttons[i].gpio); } @@ -199,6 +205,7 @@ static int __devexit gpio_keys_remove(struct platform_device *pdev) free_irq(irq, &ddata->data[i]); if (pdata->buttons[i].debounce_interval) del_timer_sync(&ddata->data[i].timer); + cancel_work_sync(&ddata->data[i].work); gpio_free(pdata->buttons[i].gpio); } -- cgit v1.2.3 From cb589529f74d69abc111887b45308f333f950ade Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Mon, 29 Jun 2009 00:00:52 -0700 Subject: Input: arrange keyboards alphabetically Hopefully it will reduce conflicts when merging patches. Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/Kconfig | 291 ++++++++++++++++++++-------------------- drivers/input/keyboard/Makefile | 32 ++--- 2 files changed, 161 insertions(+), 162 deletions(-) diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig index 9d8f796c674..d2df1030675 100644 --- a/drivers/input/keyboard/Kconfig +++ b/drivers/input/keyboard/Kconfig @@ -12,6 +12,42 @@ menuconfig INPUT_KEYBOARD if INPUT_KEYBOARD +config KEYBOARD_AAED2000 + tristate "AAED-2000 keyboard" + depends on MACH_AAED2000 + select INPUT_POLLDEV + default y + help + Say Y here to enable the keyboard on the Agilent AAED-2000 + development board. + + To compile this driver as a module, choose M here: the + module will be called aaed2000_kbd. + +config KEYBOARD_AMIGA + tristate "Amiga keyboard" + depends on AMIGA + help + Say Y here if you are running Linux on any AMIGA and have a keyboard + attached. + + To compile this driver as a module, choose M here: the + module will be called amikbd. + +config ATARI_KBD_CORE + bool + +config KEYBOARD_ATARI + tristate "Atari keyboard" + depends on ATARI + select ATARI_KBD_CORE + help + Say Y here if you are running Linux on any Atari and have a keyboard + attached. + + To compile this driver as a module, choose M here: the + module will be called atakbd. + config KEYBOARD_ATKBD tristate "AT keyboard" if EMBEDDED || !X86 default y @@ -68,69 +104,14 @@ config KEYBOARD_ATKBD_RDI_KEYCODES right-hand column will be interpreted as the key shown in the left-hand column. -config KEYBOARD_SUNKBD - tristate "Sun Type 4 and Type 5 keyboard" - select SERIO - help - Say Y here if you want to use a Sun Type 4 or Type 5 keyboard, - connected either to the Sun keyboard connector or to an serial - (RS-232) port via a simple adapter. - - To compile this driver as a module, choose M here: the - module will be called sunkbd. - -config KEYBOARD_LKKBD - tristate "DECstation/VAXstation LK201/LK401 keyboard" - select SERIO - help - Say Y here if you want to use a LK201 or LK401 style serial - keyboard. This keyboard is also useable on PCs if you attach - it with the inputattach program. The connector pinout is - described within lkkbd.c. - - To compile this driver as a module, choose M here: the - module will be called lkkbd. - -config KEYBOARD_LOCOMO - tristate "LoCoMo Keyboard Support" - depends on SHARP_LOCOMO && INPUT_KEYBOARD - help - Say Y here if you are running Linux on a Sharp Zaurus Collie or Poodle based PDA - - To compile this driver as a module, choose M here: the - module will be called locomokbd. - -config KEYBOARD_XTKBD - tristate "XT keyboard" - select SERIO - help - Say Y here if you want to use the old IBM PC/XT keyboard (or - compatible) on your system. This is only possible with a - parallel port keyboard adapter, you cannot connect it to the - keyboard port on a PC that runs Linux. - - To compile this driver as a module, choose M here: the - module will be called xtkbd. - -config KEYBOARD_NEWTON - tristate "Newton keyboard" - select SERIO - help - Say Y here if you have a Newton keyboard on a serial port. - - To compile this driver as a module, choose M here: the - module will be called newtonkbd. - -config KEYBOARD_STOWAWAY - tristate "Stowaway keyboard" - select SERIO +config KEYBOARD_BFIN + tristate "Blackfin BF54x keypad support" + depends on (BF54x && !BF544) help - Say Y here if you have a Stowaway keyboard on a serial port. - Stowaway compatible keyboards like Dicota Input-PDA keyboard - are also supported by this driver. + Say Y here if you want to use the BF54x keypad. To compile this driver as a module, choose M here: the - module will be called stowaway. + module will be called bf54x-keys. config KEYBOARD_CORGI tristate "Corgi keyboard" @@ -143,61 +124,41 @@ config KEYBOARD_CORGI To compile this driver as a module, choose M here: the module will be called corgikbd. -config KEYBOARD_SPITZ - tristate "Spitz keyboard" - depends on PXA_SHARPSL - default y +config KEYBOARD_LKKBD + tristate "DECstation/VAXstation LK201/LK401 keyboard" + select SERIO help - Say Y here to enable the keyboard on the Sharp Zaurus SL-C1000, - SL-C3000 and Sl-C3100 series of PDAs. + Say Y here if you want to use a LK201 or LK401 style serial + keyboard. This keyboard is also useable on PCs if you attach + it with the inputattach program. The connector pinout is + described within lkkbd.c. To compile this driver as a module, choose M here: the - module will be called spitzkbd. + module will be called lkkbd. -config KEYBOARD_TOSA - tristate "Tosa keyboard" - depends on MACH_TOSA - default y +config KEYBOARD_EP93XX + tristate "EP93xx Matrix Keypad support" + depends on ARCH_EP93XX help - Say Y here to enable the keyboard on the Sharp Zaurus SL-6000x (Tosa) + Say Y here to enable the matrix keypad on the Cirrus EP93XX. To compile this driver as a module, choose M here: the - module will be called tosakbd. - -config KEYBOARD_TOSA_USE_EXT_KEYCODES - bool "Tosa keyboard: use extended keycodes" - depends on KEYBOARD_TOSA - default n - help - Say Y here to enable the tosa keyboard driver to generate extended - (>= 127) keycodes. Be aware, that they can't be correctly interpreted - by either console keyboard driver or by Kdrive keybd driver. - - Say Y only if you know, what you are doing! + module will be called ep93xx_keypad. -config KEYBOARD_AMIGA - tristate "Amiga keyboard" - depends on AMIGA +config KEYBOARD_GPIO + tristate "GPIO Buttons" + depends on GENERIC_GPIO help - Say Y here if you are running Linux on any AMIGA and have a keyboard - attached. - - To compile this driver as a module, choose M here: the - module will be called amikbd. - -config ATARI_KBD_CORE - bool + This driver implements support for buttons connected + to GPIO pins of various CPUs (and some other chips). -config KEYBOARD_ATARI - tristate "Atari keyboard" - depends on ATARI - select ATARI_KBD_CORE - help - Say Y here if you are running Linux on any Atari and have a keyboard - attached. + Say Y here if your device has buttons connected + directly to such GPIO pins. Your board-specific + setup logic must also provide a platform device, + with configuration data saying which GPIOs are used. To compile this driver as a module, choose M here: the - module will be called atakbd. + module will be called gpio-keys. config KEYBOARD_HIL_OLD tristate "HP HIL keyboard support (simple driver)" @@ -261,14 +222,33 @@ config KEYBOARD_LM8323 To compile this driver as a module, choose M here: the module will be called lm8323. -config KEYBOARD_OMAP - tristate "TI OMAP keypad support" - depends on (ARCH_OMAP1 || ARCH_OMAP2) +config KEYBOARD_LOCOMO + tristate "LoCoMo Keyboard Support" + depends on SHARP_LOCOMO help - Say Y here if you want to use the OMAP keypad. + Say Y here if you are running Linux on a Sharp Zaurus Collie or Poodle based PDA To compile this driver as a module, choose M here: the - module will be called omap-keypad. + module will be called locomokbd. + +config KEYBOARD_MAPLE + tristate "Maple bus keyboard" + depends on SH_DREAMCAST && MAPLE + help + Say Y here if you have a Dreamcast console running Linux and have + a keyboard attached to its Maple bus. + + To compile this driver as a module, choose M here: the + module will be called maple_keyb. + +config KEYBOARD_NEWTON + tristate "Newton keyboard" + select SERIO + help + Say Y here if you have a Newton keyboard on a serial port. + + To compile this driver as a module, choose M here: the + module will be called newtonkbd. config KEYBOARD_PXA27x tristate "PXA27x/PXA3xx keypad support" @@ -288,51 +268,38 @@ config KEYBOARD_PXA930_ROTARY To compile this driver as a module, choose M here: the module will be called pxa930_rotary. -config KEYBOARD_AAED2000 - tristate "AAED-2000 keyboard" - depends on MACH_AAED2000 - select INPUT_POLLDEV +config KEYBOARD_SPITZ + tristate "Spitz keyboard" + depends on PXA_SHARPSL default y help - Say Y here to enable the keyboard on the Agilent AAED-2000 - development board. - - To compile this driver as a module, choose M here: the - module will be called aaed2000_kbd. - -config KEYBOARD_GPIO - tristate "GPIO Buttons" - depends on GENERIC_GPIO - help - This driver implements support for buttons connected - to GPIO pins of various CPUs (and some other chips). - - Say Y here if your device has buttons connected - directly to such GPIO pins. Your board-specific - setup logic must also provide a platform device, - with configuration data saying which GPIOs are used. + Say Y here to enable the keyboard on the Sharp Zaurus SL-C1000, + SL-C3000 and Sl-C3100 series of PDAs. To compile this driver as a module, choose M here: the - module will be called gpio-keys. + module will be called spitzkbd. -config KEYBOARD_MAPLE - tristate "Maple bus keyboard" - depends on SH_DREAMCAST && MAPLE +config KEYBOARD_STOWAWAY + tristate "Stowaway keyboard" + select SERIO help - Say Y here if you have a Dreamcast console running Linux and have - a keyboard attached to its Maple bus. + Say Y here if you have a Stowaway keyboard on a serial port. + Stowaway compatible keyboards like Dicota Input-PDA keyboard + are also supported by this driver. To compile this driver as a module, choose M here: the - module will be called maple_keyb. + module will be called stowaway. -config KEYBOARD_BFIN - tristate "Blackfin BF54x keypad support" - depends on (BF54x && !BF544) +config KEYBOARD_SUNKBD + tristate "Sun Type 4 and Type 5 keyboard" + select SERIO help - Say Y here if you want to use the BF54x keypad. + Say Y here if you want to use a Sun Type 4 or Type 5 keyboard, + connected either to the Sun keyboard connector or to an serial + (RS-232) port via a simple adapter. To compile this driver as a module, choose M here: the - module will be called bf54x-keys. + module will be called sunkbd. config KEYBOARD_SH_KEYSC tristate "SuperH KEYSC keypad support" @@ -344,13 +311,45 @@ config KEYBOARD_SH_KEYSC To compile this driver as a module, choose M here: the module will be called sh_keysc. -config KEYBOARD_EP93XX - tristate "EP93xx Matrix Keypad support" - depends on ARCH_EP93XX +config KEYBOARD_OMAP + tristate "TI OMAP keypad support" + depends on (ARCH_OMAP1 || ARCH_OMAP2) help - Say Y here to enable the matrix keypad on the Cirrus EP93XX. + Say Y here if you want to use the OMAP keypad. To compile this driver as a module, choose M here: the - module will be called ep93xx_keypad. + module will be called omap-keypad. + +config KEYBOARD_TOSA + tristate "Tosa keyboard" + depends on MACH_TOSA + default y + help + Say Y here to enable the keyboard on the Sharp Zaurus SL-6000x (Tosa) + + To compile this driver as a module, choose M here: the + module will be called tosakbd. + +config KEYBOARD_TOSA_USE_EXT_KEYCODES + bool "Tosa keyboard: use extended keycodes" + depends on KEYBOARD_TOSA + help + Say Y here to enable the tosa keyboard driver to generate extended + (>= 127) keycodes. Be aware, that they can't be correctly interpreted + by either console keyboard driver or by Kdrive keybd driver. + + Say Y only if you know, what you are doing! + +config KEYBOARD_XTKBD + tristate "XT keyboard" + select SERIO + help + Say Y here if you want to use the old IBM PC/XT keyboard (or + compatible) on your system. This is only possible with a + parallel port keyboard adapter, you cannot connect it to the + keyboard port on a PC that runs Linux. + + To compile this driver as a module, choose M here: the + module will be called xtkbd. endif diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile index 156b647a259..632efbc18c4 100644 --- a/drivers/input/keyboard/Makefile +++ b/drivers/input/keyboard/Makefile @@ -4,29 +4,29 @@ # Each configuration option enables a list of files. -obj-$(CONFIG_KEYBOARD_ATKBD) += atkbd.o -obj-$(CONFIG_KEYBOARD_SUNKBD) += sunkbd.o -obj-$(CONFIG_KEYBOARD_LKKBD) += lkkbd.o -obj-$(CONFIG_KEYBOARD_XTKBD) += xtkbd.o +obj-$(CONFIG_KEYBOARD_AAED2000) += aaed2000_kbd.o obj-$(CONFIG_KEYBOARD_AMIGA) += amikbd.o obj-$(CONFIG_KEYBOARD_ATARI) += atakbd.o -obj-$(CONFIG_KEYBOARD_LOCOMO) += locomokbd.o -obj-$(CONFIG_KEYBOARD_NEWTON) += newtonkbd.o -obj-$(CONFIG_KEYBOARD_STOWAWAY) += stowaway.o +obj-$(CONFIG_KEYBOARD_ATKBD) += atkbd.o +obj-$(CONFIG_KEYBOARD_BFIN) += bf54x-keys.o obj-$(CONFIG_KEYBOARD_CORGI) += corgikbd.o -obj-$(CONFIG_KEYBOARD_SPITZ) += spitzkbd.o -obj-$(CONFIG_KEYBOARD_TOSA) += tosakbd.o +obj-$(CONFIG_KEYBOARD_EP93XX) += ep93xx_keypad.o +obj-$(CONFIG_KEYBOARD_GPIO) += gpio_keys.o obj-$(CONFIG_KEYBOARD_HIL) += hil_kbd.o obj-$(CONFIG_KEYBOARD_HIL_OLD) += hilkbd.o +obj-$(CONFIG_KEYBOARD_HP6XX) += jornada680_kbd.o +obj-$(CONFIG_KEYBOARD_HP7XX) += jornada720_kbd.o +obj-$(CONFIG_KEYBOARD_LKKBD) += lkkbd.o obj-$(CONFIG_KEYBOARD_LM8323) += lm8323.o +obj-$(CONFIG_KEYBOARD_LOCOMO) += locomokbd.o +obj-$(CONFIG_KEYBOARD_MAPLE) += maple_keyb.o +obj-$(CONFIG_KEYBOARD_NEWTON) += newtonkbd.o obj-$(CONFIG_KEYBOARD_OMAP) += omap-keypad.o obj-$(CONFIG_KEYBOARD_PXA27x) += pxa27x_keypad.o obj-$(CONFIG_KEYBOARD_PXA930_ROTARY) += pxa930_rotary.o -obj-$(CONFIG_KEYBOARD_AAED2000) += aaed2000_kbd.o -obj-$(CONFIG_KEYBOARD_GPIO) += gpio_keys.o -obj-$(CONFIG_KEYBOARD_HP6XX) += jornada680_kbd.o -obj-$(CONFIG_KEYBOARD_HP7XX) += jornada720_kbd.o -obj-$(CONFIG_KEYBOARD_MAPLE) += maple_keyb.o -obj-$(CONFIG_KEYBOARD_BFIN) += bf54x-keys.o obj-$(CONFIG_KEYBOARD_SH_KEYSC) += sh_keysc.o -obj-$(CONFIG_KEYBOARD_EP93XX) += ep93xx_keypad.o +obj-$(CONFIG_KEYBOARD_SPITZ) += spitzkbd.o +obj-$(CONFIG_KEYBOARD_STOWAWAY) += stowaway.o +obj-$(CONFIG_KEYBOARD_SUNKBD) += sunkbd.o +obj-$(CONFIG_KEYBOARD_TOSA) += tosakbd.o +obj-$(CONFIG_KEYBOARD_XTKBD) += xtkbd.o -- cgit v1.2.3 From bab7614d6d1b1fc96ec6c5a7ca34c8641060e659 Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Mon, 29 Jun 2009 00:20:52 -0700 Subject: Input: add support for generic GPIO-based matrix keypad Original patch by Marek Vasut, modified by Eric in: 1. use delayed work to simplify the debouncing 2. combine col_polarity/row_polarity into a single active_low field 3. use a generic bit array based XOR algorithm to detect key press/release, which should make the column assertion time shorter and code a bit cleaner 4. remove the ALT_FN handling, which is no way generic, the ALT_FN key should be treated as no different from other keys, and translation will be done by user space by commands like 'loadkeys'. 5. explicitly disable row IRQs and flush potential pending work, and schedule an immediate scan after resuming as suggested by Uli Luckas 6. incorporate review comments from many others Patch tested on Littleton/PXA310 (though PXA310 has a dedicate keypad controller, I have to configure those pins as generic GPIO to use this driver, works quite well, though), and Sharp Zaurus model SL-C7x0 and SL-C1000. [dtor@mail.ru: fix error unwinding path, support changing keymap from userspace] Signed-off-by: Marek Vasut Reviewed-by: Trilok Soni Reviewed-by: Uli Luckas Reviewed-by: Russell King Reviewed-by: Robert Jarzmik Signed-off-by: Eric Miao Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/Kconfig | 13 +- drivers/input/keyboard/Makefile | 1 + drivers/input/keyboard/matrix_keypad.c | 453 +++++++++++++++++++++++++++++++++ include/linux/input/matrix_keypad.h | 65 +++++ 4 files changed, 530 insertions(+), 2 deletions(-) create mode 100644 drivers/input/keyboard/matrix_keypad.c create mode 100644 include/linux/input/matrix_keypad.h diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig index d2df1030675..a6b989a9dc0 100644 --- a/drivers/input/keyboard/Kconfig +++ b/drivers/input/keyboard/Kconfig @@ -158,7 +158,16 @@ config KEYBOARD_GPIO with configuration data saying which GPIOs are used. To compile this driver as a module, choose M here: the - module will be called gpio-keys. + module will be called gpio_keys. + +config KEYBOARD_MATRIX + tristate "GPIO driven matrix keypad support" + depends on GENERIC_GPIO + help + Enable support for GPIO driven matrix keypad. + + To compile this driver as a module, choose M here: the + module will be called matrix_keypad. config KEYBOARD_HIL_OLD tristate "HP HIL keyboard support (simple driver)" @@ -254,7 +263,7 @@ config KEYBOARD_PXA27x tristate "PXA27x/PXA3xx keypad support" depends on PXA27x || PXA3xx help - Enable support for PXA27x/PXA3xx keypad controller + Enable support for PXA27x/PXA3xx keypad controller. To compile this driver as a module, choose M here: the module will be called pxa27x_keypad. diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile index 632efbc18c4..b5b5eae9724 100644 --- a/drivers/input/keyboard/Makefile +++ b/drivers/input/keyboard/Makefile @@ -20,6 +20,7 @@ obj-$(CONFIG_KEYBOARD_LKKBD) += lkkbd.o obj-$(CONFIG_KEYBOARD_LM8323) += lm8323.o obj-$(CONFIG_KEYBOARD_LOCOMO) += locomokbd.o obj-$(CONFIG_KEYBOARD_MAPLE) += maple_keyb.o +obj-$(CONFIG_KEYBOARD_MATRIX) += matrix_keypad.o obj-$(CONFIG_KEYBOARD_NEWTON) += newtonkbd.o obj-$(CONFIG_KEYBOARD_OMAP) += omap-keypad.o obj-$(CONFIG_KEYBOARD_PXA27x) += pxa27x_keypad.o diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c new file mode 100644 index 00000000000..e9b2e7cb05b --- /dev/null +++ b/drivers/input/keyboard/matrix_keypad.c @@ -0,0 +1,453 @@ +/* + * GPIO driven matrix keyboard driver + * + * Copyright (c) 2008 Marek Vasut + * + * Based on corgikbd.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct matrix_keypad { + const struct matrix_keypad_platform_data *pdata; + struct input_dev *input_dev; + unsigned short *keycodes; + + uint32_t last_key_state[MATRIX_MAX_COLS]; + struct delayed_work work; + bool scan_pending; + bool stopped; + spinlock_t lock; +}; + +/* + * NOTE: normally the GPIO has to be put into HiZ when de-activated to cause + * minmal side effect when scanning other columns, here it is configured to + * be input, and it should work on most platforms. + */ +static void __activate_col(const struct matrix_keypad_platform_data *pdata, + int col, bool on) +{ + bool level_on = !pdata->active_low; + + if (on) { + gpio_direction_output(pdata->col_gpios[col], level_on); + } else { + gpio_set_value_cansleep(pdata->col_gpios[col], !level_on); + gpio_direction_input(pdata->col_gpios[col]); + } +} + +static void activate_col(const struct matrix_keypad_platform_data *pdata, + int col, bool on) +{ + __activate_col(pdata, col, on); + + if (on && pdata->col_scan_delay_us) + udelay(pdata->col_scan_delay_us); +} + +static void activate_all_cols(const struct matrix_keypad_platform_data *pdata, + bool on) +{ + int col; + + for (col = 0; col < pdata->num_col_gpios; col++) + __activate_col(pdata, col, on); +} + +static bool row_asserted(const struct matrix_keypad_platform_data *pdata, + int row) +{ + return gpio_get_value_cansleep(pdata->row_gpios[row]) ? + !pdata->active_low : pdata->active_low; +} + +static void enable_row_irqs(struct matrix_keypad *keypad) +{ + const struct matrix_keypad_platform_data *pdata = keypad->pdata; + int i; + + for (i = 0; i < pdata->num_row_gpios; i++) + enable_irq(gpio_to_irq(pdata->row_gpios[i])); +} + +static void disable_row_irqs(struct matrix_keypad *keypad) +{ + const struct matrix_keypad_platform_data *pdata = keypad->pdata; + int i; + + for (i = 0; i < pdata->num_row_gpios; i++) + disable_irq_nosync(gpio_to_irq(pdata->row_gpios[i])); +} + +/* + * This gets the keys from keyboard and reports it to input subsystem + */ +static void matrix_keypad_scan(struct work_struct *work) +{ + struct matrix_keypad *keypad = + container_of(work, struct matrix_keypad, work.work); + struct input_dev *input_dev = keypad->input_dev; + const struct matrix_keypad_platform_data *pdata = keypad->pdata; + uint32_t new_state[MATRIX_MAX_COLS]; + int row, col, code; + + /* de-activate all columns for scanning */ + activate_all_cols(pdata, false); + + memset(new_state, 0, sizeof(new_state)); + + /* assert each column and read the row status out */ + for (col = 0; col < pdata->num_col_gpios; col++) { + + activate_col(pdata, col, true); + + for (row = 0; row < pdata->num_row_gpios; row++) + new_state[col] |= + row_asserted(pdata, row) ? (1 << row) : 0; + + activate_col(pdata, col, false); + } + + for (col = 0; col < pdata->num_col_gpios; col++) { + uint32_t bits_changed; + + bits_changed = keypad->last_key_state[col] ^ new_state[col]; + if (bits_changed == 0) + continue; + + for (row = 0; row < pdata->num_row_gpios; row++) { + if ((bits_changed & (1 << row)) == 0) + continue; + + code = (row << 4) + col; + input_event(input_dev, EV_MSC, MSC_SCAN, code); + input_report_key(input_dev, + keypad->keycodes[code], + new_state[col] & (1 << row)); + } + } + input_sync(input_dev); + + memcpy(keypad->last_key_state, new_state, sizeof(new_state)); + + activate_all_cols(pdata, true); + + /* Enable IRQs again */ + spin_lock_irq(&keypad->lock); + keypad->scan_pending = false; + enable_row_irqs(keypad); + spin_unlock_irq(&keypad->lock); +} + +static irqreturn_t matrix_keypad_interrupt(int irq, void *id) +{ + struct matrix_keypad *keypad = id; + unsigned long flags; + + spin_lock_irqsave(&keypad->lock, flags); + + /* + * See if another IRQ beaten us to it and scheduled the + * scan already. In that case we should not try to + * disable IRQs again. + */ + if (unlikely(keypad->scan_pending || keypad->stopped)) + goto out; + + disable_row_irqs(keypad); + keypad->scan_pending = true; + schedule_delayed_work(&keypad->work, + msecs_to_jiffies(keypad->pdata->debounce_ms)); + +out: + spin_unlock_irqrestore(&keypad->lock, flags); + return IRQ_HANDLED; +} + +static int matrix_keypad_start(struct input_dev *dev) +{ + struct matrix_keypad *keypad = input_get_drvdata(dev); + + keypad->stopped = false; + mb(); + + /* + * Schedule an immediate key scan to capture current key state; + * columns will be activated and IRQs be enabled after the scan. + */ + schedule_delayed_work(&keypad->work, 0); + + return 0; +} + +static void matrix_keypad_stop(struct input_dev *dev) +{ + struct matrix_keypad *keypad = input_get_drvdata(dev); + + keypad->stopped = true; + mb(); + flush_work(&keypad->work.work); + /* + * matrix_keypad_scan() will leave IRQs enabled; + * we should disable them now. + */ + disable_row_irqs(keypad); +} + +#ifdef CONFIG_PM +static int matrix_keypad_suspend(struct platform_device *pdev, pm_message_t state) +{ + struct matrix_keypad *keypad = platform_get_drvdata(pdev); + const struct matrix_keypad_platform_data *pdata = keypad->pdata; + int i; + + matrix_keypad_stop(keypad->input_dev); + + if (device_may_wakeup(&pdev->dev)) + for (i = 0; i < pdata->num_row_gpios; i++) + enable_irq_wake(gpio_to_irq(pdata->row_gpios[i])); + + return 0; +} + +static int matrix_keypad_resume(struct platform_device *pdev) +{ + struct matrix_keypad *keypad = platform_get_drvdata(pdev); + const struct matrix_keypad_platform_data *pdata = keypad->pdata; + int i; + + if (device_may_wakeup(&pdev->dev)) + for (i = 0; i < pdata->num_row_gpios; i++) + disable_irq_wake(gpio_to_irq(pdata->row_gpios[i])); + + matrix_keypad_start(keypad->input_dev); + + return 0; +} +#else +#define matrix_keypad_suspend NULL +#define matrix_keypad_resume NULL +#endif + +static int __devinit init_matrix_gpio(struct platform_device *pdev, + struct matrix_keypad *keypad) +{ + const struct matrix_keypad_platform_data *pdata = keypad->pdata; + int i, err = -EINVAL; + + /* initialized strobe lines as outputs, activated */ + for (i = 0; i < pdata->num_col_gpios; i++) { + err = gpio_request(pdata->col_gpios[i], "matrix_kbd_col"); + if (err) { + dev_err(&pdev->dev, + "failed to request GPIO%d for COL%d\n", + pdata->col_gpios[i], i); + goto err_free_cols; + } + + gpio_direction_output(pdata->col_gpios[i], !pdata->active_low); + } + + for (i = 0; i < pdata->num_row_gpios; i++) { + err = gpio_request(pdata->row_gpios[i], "matrix_kbd_row"); + if (err) { + dev_err(&pdev->dev, + "failed to request GPIO%d for ROW%d\n", + pdata->row_gpios[i], i); + goto err_free_rows; + } + + gpio_direction_input(pdata->row_gpios[i]); + } + + for (i = 0; i < pdata->num_row_gpios; i++) { + err = request_irq(gpio_to_irq(pdata->row_gpios[i]), + matrix_keypad_interrupt, + IRQF_DISABLED | + IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, + "matrix-keypad", keypad); + if (err) { + dev_err(&pdev->dev, + "Unable to acquire interrupt for GPIO line %i\n", + pdata->row_gpios[i]); + goto err_free_irqs; + } + } + + /* initialized as disabled - enabled by input->open */ + disable_row_irqs(keypad); + return 0; + +err_free_irqs: + while (--i >= 0) + free_irq(gpio_to_irq(pdata->row_gpios[i]), keypad); + i = pdata->num_row_gpios; +err_free_rows: + while (--i >= 0) + gpio_free(pdata->row_gpios[i]); + i = pdata->num_col_gpios; +err_free_cols: + while (--i >= 0) + gpio_free(pdata->col_gpios[i]); + + return err; +} + +static int __devinit matrix_keypad_probe(struct platform_device *pdev) +{ + const struct matrix_keypad_platform_data *pdata; + const struct matrix_keymap_data *keymap_data; + struct matrix_keypad *keypad; + struct input_dev *input_dev; + unsigned short *keycodes; + int i; + int err; + + pdata = pdev->dev.platform_data; + if (!pdata) { + dev_err(&pdev->dev, "no platform data defined\n"); + return -EINVAL; + } + + keymap_data = pdata->keymap_data; + if (!keymap_data) { + dev_err(&pdev->dev, "no keymap data defined\n"); + return -EINVAL; + } + + if (!keymap_data->max_keymap_size) { + dev_err(&pdev->dev, "invalid keymap data supplied\n"); + return -EINVAL; + } + + keypad = kzalloc(sizeof(struct matrix_keypad), GFP_KERNEL); + keycodes = kzalloc(keymap_data->max_keymap_size * + sizeof(keypad->keycodes), + GFP_KERNEL); + input_dev = input_allocate_device(); + if (!keypad || !keycodes || !input_dev) { + err = -ENOMEM; + goto err_free_mem; + } + + keypad->input_dev = input_dev; + keypad->pdata = pdata; + keypad->keycodes = keycodes; + keypad->stopped = true; + INIT_DELAYED_WORK(&keypad->work, matrix_keypad_scan); + spin_lock_init(&keypad->lock); + + input_dev->name = pdev->name; + input_dev->id.bustype = BUS_HOST; + input_dev->dev.parent = &pdev->dev; + input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP); + input_dev->open = matrix_keypad_start; + input_dev->close = matrix_keypad_stop; + + input_dev->keycode = keycodes; + input_dev->keycodesize = sizeof(*keycodes); + input_dev->keycodemax = keymap_data->max_keymap_size; + + for (i = 0; i < keymap_data->keymap_size; i++) { + unsigned int key = keymap_data->keymap[i]; + unsigned int row = KEY_ROW(key); + unsigned int col = KEY_COL(key); + unsigned short code = KEY_VAL(key); + + keycodes[(row << 4) + col] = code; + __set_bit(code, input_dev->keybit); + } + __clear_bit(KEY_RESERVED, input_dev->keybit); + + input_set_capability(input_dev, EV_MSC, MSC_SCAN); + input_set_drvdata(input_dev, keypad); + + err = init_matrix_gpio(pdev, keypad); + if (err) + goto err_free_mem; + + err = input_register_device(keypad->input_dev); + if (err) + goto err_free_mem; + + device_init_wakeup(&pdev->dev, pdata->wakeup); + platform_set_drvdata(pdev, keypad); + + return 0; + +err_free_mem: + input_free_device(input_dev); + kfree(keycodes); + kfree(keypad); + return err; +} + +static int __devexit matrix_keypad_remove(struct platform_device *pdev) +{ + struct matrix_keypad *keypad = platform_get_drvdata(pdev); + const struct matrix_keypad_platform_data *pdata = keypad->pdata; + int i; + + device_init_wakeup(&pdev->dev, 0); + + for (i = 0; i < pdata->num_row_gpios; i++) { + free_irq(gpio_to_irq(pdata->row_gpios[i]), keypad); + gpio_free(pdata->row_gpios[i]); + } + + for (i = 0; i < pdata->num_col_gpios; i++) + gpio_free(pdata->col_gpios[i]); + + input_unregister_device(keypad->input_dev); + platform_set_drvdata(pdev, NULL); + kfree(keypad->keycodes); + kfree(keypad); + + return 0; +} + +static struct platform_driver matrix_keypad_driver = { + .probe = matrix_keypad_probe, + .remove = __devexit_p(matrix_keypad_remove), + .suspend = matrix_keypad_suspend, + .resume = matrix_keypad_resume, + .driver = { + .name = "matrix-keypad", + .owner = THIS_MODULE, + }, +}; + +static int __init matrix_keypad_init(void) +{ + return platform_driver_register(&matrix_keypad_driver); +} + +static void __exit matrix_keypad_exit(void) +{ + platform_driver_unregister(&matrix_keypad_driver); +} + +module_init(matrix_keypad_init); +module_exit(matrix_keypad_exit); + +MODULE_AUTHOR("Marek Vasut "); +MODULE_DESCRIPTION("GPIO Driven Matrix Keypad Driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:matrix-keypad"); diff --git a/include/linux/input/matrix_keypad.h b/include/linux/input/matrix_keypad.h new file mode 100644 index 00000000000..7964516c695 --- /dev/null +++ b/include/linux/input/matrix_keypad.h @@ -0,0 +1,65 @@ +#ifndef _MATRIX_KEYPAD_H +#define _MATRIX_KEYPAD_H + +#include +#include + +#define MATRIX_MAX_ROWS 16 +#define MATRIX_MAX_COLS 16 + +#define KEY(row, col, val) ((((row) & (MATRIX_MAX_ROWS - 1)) << 24) |\ + (((col) & (MATRIX_MAX_COLS - 1)) << 16) |\ + (val & 0xffff)) + +#define KEY_ROW(k) (((k) >> 24) & 0xff) +#define KEY_COL(k) (((k) >> 16) & 0xff) +#define KEY_VAL(k) ((k) & 0xffff) + +/** + * struct matrix_keymap_data - keymap for matrix keyboards + * @keymap: pointer to array of uint32 values encoded with KEY() macro + * representing keymap + * @keymap_size: number of entries (initialized) in this keymap + * @max_keymap_size: maximum size of keymap supported by the device + * + * This structure is supposed to be used by platform code to supply + * keymaps to drivers that implement matrix-like keypads/keyboards. + */ +struct matrix_keymap_data { + const uint32_t *keymap; + unsigned int keymap_size; + unsigned int max_keymap_size; +}; + +/** + * struct matrix_keypad_platform_data - platform-dependent keypad data + * @keymap_data: pointer to &matrix_keymap_data + * @row_gpios: array of gpio numbers reporesenting rows + * @col_gpios: array of gpio numbers reporesenting colums + * @num_row_gpios: actual number of row gpios used by device + * @num_col_gpios: actual number of col gpios used by device + * @col_scan_delay_us: delay, measured in microseconds, that is + * needed before we can keypad after activating column gpio + * @debounce_ms: debounce interval in milliseconds + * + * This structure represents platform-specific data that use used by + * matrix_keypad driver to perform proper initialization. + */ +struct matrix_keypad_platform_data { + const struct matrix_keymap_data *keymap_data; + + unsigned int row_gpios[MATRIX_MAX_ROWS]; + unsigned int col_gpios[MATRIX_MAX_COLS]; + unsigned int num_row_gpios; + unsigned int num_col_gpios; + + unsigned int col_scan_delay_us; + + /* key debounce interval in milli-second */ + unsigned int debounce_ms; + + bool active_low; + bool wakeup; +}; + +#endif /* _MATRIX_KEYPAD_H */ -- cgit v1.2.3 From 9a660a6e1a0ebef72cf792583777234483a40022 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Sun, 28 Jun 2009 16:26:13 +0000 Subject: arch/sh/boards/mach-se/7206/io.c: Remove unnecessary semicolons Signed-off-by: Joe Perches Signed-off-by: Paul Mundt --- arch/sh/boards/mach-se/7206/io.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/sh/boards/mach-se/7206/io.c b/arch/sh/boards/mach-se/7206/io.c index 9c3a33210d6..180455642a4 100644 --- a/arch/sh/boards/mach-se/7206/io.c +++ b/arch/sh/boards/mach-se/7206/io.c @@ -50,7 +50,7 @@ unsigned char se7206_inb_p(unsigned long port) unsigned short se7206_inw(unsigned long port) { - return *port2adr(port);; + return *port2adr(port); } void se7206_outb(unsigned char value, unsigned long port) -- cgit v1.2.3 From ec87805c63a96e8863385d79c864801a572a4ab8 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Mon, 29 Jun 2009 07:40:00 +0000 Subject: sh: ms7724se: Enable sh_eth in defconfig. Signed-off-by: Kuninori Morimoto Signed-off-by: Paul Mundt --- arch/sh/configs/se7724_defconfig | 25 +++++++++++++++++++++---- 1 file changed, 21 insertions(+), 4 deletions(-) diff --git a/arch/sh/configs/se7724_defconfig b/arch/sh/configs/se7724_defconfig index 3840270283e..3ee783a0a07 100644 --- a/arch/sh/configs/se7724_defconfig +++ b/arch/sh/configs/se7724_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit # Linux kernel version: 2.6.30 -# Thu Jun 18 16:09:05 2009 +# Mon Jun 29 16:28:43 2009 # CONFIG_SUPERH=y CONFIG_SUPERH32=y @@ -14,6 +14,7 @@ CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_HARDIRQS=y CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_IRQ_PER_CPU=y CONFIG_GENERIC_GPIO=y CONFIG_GENERIC_TIME=y CONFIG_GENERIC_CLOCKEVENTS=y @@ -28,7 +29,9 @@ CONFIG_HAVE_LATENCYTOP_SUPPORT=y # CONFIG_ARCH_HAS_ILOG2_U64 is not set CONFIG_ARCH_NO_VIRT_TO_BUS=y CONFIG_ARCH_HAS_DEFAULT_IDLE=y +CONFIG_ARCH_HAS_CPU_IDLE_WAIT=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -88,10 +91,12 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y # # Performance Counters # +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y # CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y @@ -107,6 +112,10 @@ CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_CLK=y CONFIG_HAVE_DMA_API_DEBUG=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set CONFIG_HAVE_GENERIC_DMA_COHERENT=y CONFIG_SLABINFO=y @@ -119,7 +128,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -584,7 +593,6 @@ CONFIG_SCSI_WAIT_SCAN=m # CONFIG_SCSI_SRP_ATTRS is not set CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set -# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_LIBFC is not set # CONFIG_LIBFCOE is not set # CONFIG_SCSI_DEBUG is not set @@ -624,7 +632,7 @@ CONFIG_NET_ETHERNET=y CONFIG_MII=y # CONFIG_AX88796 is not set # CONFIG_STNIC is not set -# CONFIG_SH_ETH is not set +CONFIG_SH_ETH=y CONFIG_SMC91X=y # CONFIG_ENC28J60 is not set # CONFIG_ETHOC is not set @@ -801,6 +809,11 @@ CONFIG_SPI_BITBANG=y # # CONFIG_SPI_SPIDEV is not set # CONFIG_SPI_TLE62X0 is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_REQUIRE_GPIOLIB=y CONFIG_GPIOLIB=y # CONFIG_GPIO_SYSFS is not set @@ -851,6 +864,8 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set +# CONFIG_EZX_PCAP is not set # CONFIG_REGULATOR is not set CONFIG_MEDIA_SUPPORT=y @@ -1196,6 +1211,7 @@ CONFIG_RTC_DRV_PCF8563=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # CONFIG_RTC_DRV_RX8581 is not set +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1260,6 +1276,7 @@ CONFIG_FS_MBCACHE=y # CONFIG_JFS_FS is not set CONFIG_FS_POSIX_ACL=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set CONFIG_FILE_LOCKING=y -- cgit v1.2.3 From 4078c444cf667f018c3fc7ebf141131a2b7c9480 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Mon, 29 Jun 2009 00:41:11 -0700 Subject: perf_counter, x86: Update x86_pmu after WARN() The print out should read the value before changing the value. Signed-off-by: Yinghai Lu Cc: Peter Zijlstra LKML-Reference: <4A487017.4090007@kernel.org> Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/perf_counter.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c index b83474b6021..d4cf4ce19aa 100644 --- a/arch/x86/kernel/cpu/perf_counter.c +++ b/arch/x86/kernel/cpu/perf_counter.c @@ -1496,17 +1496,17 @@ void __init init_hw_perf_counters(void) pr_cont("%s PMU driver.\n", x86_pmu.name); if (x86_pmu.num_counters > X86_PMC_MAX_GENERIC) { - x86_pmu.num_counters = X86_PMC_MAX_GENERIC; WARN(1, KERN_ERR "hw perf counters %d > max(%d), clipping!", x86_pmu.num_counters, X86_PMC_MAX_GENERIC); + x86_pmu.num_counters = X86_PMC_MAX_GENERIC; } perf_counter_mask = (1 << x86_pmu.num_counters) - 1; perf_max_counters = x86_pmu.num_counters; if (x86_pmu.num_counters_fixed > X86_PMC_MAX_FIXED) { - x86_pmu.num_counters_fixed = X86_PMC_MAX_FIXED; WARN(1, KERN_ERR "hw perf counters fixed %d > max(%d), clipping!", x86_pmu.num_counters_fixed, X86_PMC_MAX_FIXED); + x86_pmu.num_counters_fixed = X86_PMC_MAX_FIXED; } perf_counter_mask |= -- cgit v1.2.3 From 238a24f626628cb16a3015f332d649f08246ca89 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Mon, 29 Jun 2009 15:55:10 +0800 Subject: tracing/fastboot: Document the need of initcall_debug To use boot tracer, one should pass initcall_debug as well as ftrace=initcall to the command line. Signed-off-by: Li Zefan Cc: Frederic Weisbecker Cc: Steven Rostedt LKML-Reference: <4A48735E.9050002@cn.fujitsu.com> Signed-off-by: Ingo Molnar --- kernel/trace/Kconfig | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index 1551f47e766..019f380fd76 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -226,13 +226,13 @@ config BOOT_TRACER the timings of the initcalls and traces key events and the identity of tasks that can cause boot delays, such as context-switches. - Its aim is to be parsed by the /scripts/bootgraph.pl tool to + Its aim is to be parsed by the scripts/bootgraph.pl tool to produce pretty graphics about boot inefficiencies, giving a visual representation of the delays during initcalls - but the raw /debug/tracing/trace text output is readable too. - You must pass in ftrace=initcall to the kernel command line - to enable this on bootup. + You must pass in initcall_debug and ftrace=initcall to the kernel + command line to enable this on bootup. config TRACE_BRANCH_PROFILING bool -- cgit v1.2.3 From 1d955ebd4db7961dc4e772a23288b3d5c6f191be Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 29 Jun 2009 11:33:53 +0200 Subject: ALSA: hda - Add missing initializations for ALC268 and ALC269 During the changes to clean up / fix the realtek codec initialization routines in commit 4a79ba34cada6a5a4ee86ed53aa8a73ba1e6fc51, I forgot to add the check for ALC268 and ALC269. This resulted in the missing EAPD and COEF setup for these codecs. This patch adds the missing checks for these codecs. Reference: bko#13633 http://bugzilla.kernel.org/show_bug.cgi?id=13633 Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 08846d222cb..3a8e58c483d 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -12463,6 +12463,8 @@ static int alc268_parse_auto_config(struct hda_codec *codec) if (err < 0) return err; + alc_ssid_check(codec, 0x15, 0x1b, 0x14); + return 1; } @@ -13371,6 +13373,8 @@ static int alc269_parse_auto_config(struct hda_codec *codec) if (!spec->cap_mixer && !spec->no_analog) set_capture_mixer(spec); + alc_ssid_check(codec, 0x15, 0x1b, 0x14); + return 1; } -- cgit v1.2.3 From 59c5fe6d848cae8fd51498d17532f5aad3866f98 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Mon, 29 Jun 2009 12:11:50 +0100 Subject: [ARM] 5562/2: at91: add gpio button support for at91sam9g20ek This adds input keyboard gpio support on at91sam9g20ek board. It adds button 3 and 4. Signed-off-by: Nicolas Ferre Acked-by: Andrew Victor Signed-off-by: Russell King --- arch/arm/mach-at91/board-sam9g20ek.c | 54 ++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) diff --git a/arch/arm/mach-at91/board-sam9g20ek.c b/arch/arm/mach-at91/board-sam9g20ek.c index cc270beadd5..a55398ed121 100644 --- a/arch/arm/mach-at91/board-sam9g20ek.c +++ b/arch/arm/mach-at91/board-sam9g20ek.c @@ -24,6 +24,8 @@ #include #include #include +#include +#include #include #include @@ -218,6 +220,56 @@ static struct gpio_led ek_leds[] = { } }; + +/* + * GPIO Buttons + */ +#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) +static struct gpio_keys_button ek_buttons[] = { + { + .gpio = AT91_PIN_PA30, + .code = BTN_3, + .desc = "Button 3", + .active_low = 1, + .wakeup = 1, + }, + { + .gpio = AT91_PIN_PA31, + .code = BTN_4, + .desc = "Button 4", + .active_low = 1, + .wakeup = 1, + } +}; + +static struct gpio_keys_platform_data ek_button_data = { + .buttons = ek_buttons, + .nbuttons = ARRAY_SIZE(ek_buttons), +}; + +static struct platform_device ek_button_device = { + .name = "gpio-keys", + .id = -1, + .num_resources = 0, + .dev = { + .platform_data = &ek_button_data, + } +}; + +static void __init ek_add_device_buttons(void) +{ + at91_set_gpio_input(AT91_PIN_PA30, 1); /* btn3 */ + at91_set_deglitch(AT91_PIN_PA30, 1); + at91_set_gpio_input(AT91_PIN_PA31, 1); /* btn4 */ + at91_set_deglitch(AT91_PIN_PA31, 1); + + platform_device_register(&ek_button_device); +} +#else +static void __init ek_add_device_buttons(void) {} +#endif + + static struct i2c_board_info __initdata ek_i2c_devices[] = { { I2C_BOARD_INFO("24c512", 0x50), @@ -245,6 +297,8 @@ static void __init ek_board_init(void) at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices)); /* LEDs */ at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds)); + /* Push Buttons */ + ek_add_device_buttons(); /* PCK0 provides MCLK to the WM8731 */ at91_set_B_periph(AT91_PIN_PC1, 0); /* SSC (for WM8731) */ -- cgit v1.2.3 From bf92df30df909710c498d05620e2df1be1ef779b Mon Sep 17 00:00:00 2001 From: Yu Zhao Date: Mon, 29 Jun 2009 11:31:45 +0800 Subject: intel-iommu: Only avoid flushing device IOTLB for domain ID 0 in caching mode In caching mode, domain ID 0 is reserved for non-present to present mapping flush. Device IOTLB doesn't need to be flushed in this case. Previously we were avoiding the flush for domain zero, even if the IOMMU wasn't in caching mode and domain zero wasn't special. Signed-off-by: Yu Zhao Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 420afa88728..3cad7006ed8 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -1054,7 +1054,12 @@ static void iommu_flush_iotlb_psi(struct intel_iommu *iommu, u16 did, else iommu->flush.flush_iotlb(iommu, did, addr, mask, DMA_TLB_PSI_FLUSH); - if (did) + + /* + * In caching mode, domain ID 0 is reserved for non-present to present + * mapping flush. Device IOTLB doesn't need to be flushed in this case. + */ + if (!cap_caching_mode(iommu->cap) || did) iommu_flush_dev_iotlb(iommu->domains[did], addr, mask); } -- cgit v1.2.3 From b213203e475212a69ad6fedfb73464087e317148 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Fri, 26 Jun 2009 18:50:28 +0100 Subject: intel-iommu: Create new iommu_domain_identity_map() function We'll want to do this to a _domain_ (the si_domain) rather than a PCI device. Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 62 +++++++++++++++++++++++++++-------------------- 1 file changed, 36 insertions(+), 26 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 3cad7006ed8..3a4f347e2f8 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -1849,25 +1849,12 @@ error: static int iommu_identity_mapping; -static int iommu_prepare_identity_map(struct pci_dev *pdev, - unsigned long long start, - unsigned long long end) +static int iommu_domain_identity_map(struct dmar_domain *domain, + unsigned long long start, + unsigned long long end) { - struct dmar_domain *domain; unsigned long size; unsigned long long base; - int ret; - - printk(KERN_INFO - "IOMMU: Setting identity map for device %s [0x%Lx - 0x%Lx]\n", - pci_name(pdev), start, end); - if (iommu_identity_mapping) - domain = si_domain; - else - /* page table init */ - domain = get_domain_for_dev(pdev, DEFAULT_DOMAIN_ADDRESS_WIDTH); - if (!domain) - return -ENOMEM; /* The address might not be aligned */ base = start & PAGE_MASK; @@ -1876,31 +1863,54 @@ static int iommu_prepare_identity_map(struct pci_dev *pdev, if (!reserve_iova(&domain->iovad, IOVA_PFN(base), IOVA_PFN(base + size) - 1)) { printk(KERN_ERR "IOMMU: reserve iova failed\n"); - ret = -ENOMEM; - goto error; + return -ENOMEM; } - pr_debug("Mapping reserved region %lx@%llx for %s\n", - size, base, pci_name(pdev)); + pr_debug("Mapping reserved region %lx@%llx for domain %d\n", + size, base, domain->id); /* * RMRR range might have overlap with physical memory range, * clear it first */ dma_pte_clear_range(domain, base, base + size); - ret = domain_page_mapping(domain, base, base, size, - DMA_PTE_READ|DMA_PTE_WRITE); + return domain_page_mapping(domain, base, base, size, + DMA_PTE_READ|DMA_PTE_WRITE); +} + +static int iommu_prepare_identity_map(struct pci_dev *pdev, + unsigned long long start, + unsigned long long end) +{ + struct dmar_domain *domain; + int ret; + + printk(KERN_INFO + "IOMMU: Setting identity map for device %s [0x%Lx - 0x%Lx]\n", + pci_name(pdev), start, end); + + if (iommu_identity_mapping) + domain = si_domain; + else + /* page table init */ + domain = get_domain_for_dev(pdev, DEFAULT_DOMAIN_ADDRESS_WIDTH); + if (!domain) + return -ENOMEM; + + ret = iommu_domain_identity_map(domain, start, end); if (ret) goto error; /* context entry init */ ret = domain_context_mapping(domain, pdev, CONTEXT_TT_MULTI_LEVEL); - if (!ret) - return 0; -error: + if (ret) + goto error; + + return 0; + + error: domain_exit(domain); return ret; - } static inline int iommu_prepare_rmrr_dev(struct dmar_rmrr_unit *rmrr, -- cgit v1.2.3 From c7ab48d2acaf959e4d59c3f55d12fdb7ca9afd7c Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Fri, 26 Jun 2009 19:10:36 +0100 Subject: intel-iommu: Clean up identity mapping code, remove CONFIG_DMAR_GFX_WA There's no need for the GFX workaround now we have 'iommu=pt' for the cases where people really care about performance. There's no need to have a special case for just one type of device. This also speeds up the iommu=pt path and reduces memory usage by setting up the si_domain _once_ and then using it for all devices, rather than giving each device its own private page tables. Signed-off-by: David Woodhouse --- arch/x86/Kconfig | 15 +------ drivers/pci/intel-iommu.c | 107 ++++++++++++++-------------------------------- 2 files changed, 34 insertions(+), 88 deletions(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index d1430ef6b4f..c07f7220590 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1913,25 +1913,14 @@ config DMAR_DEFAULT_ON recommended you say N here while the DMAR code remains experimental. -config DMAR_GFX_WA - def_bool y - prompt "Support for Graphics workaround" - depends on DMAR - ---help--- - Current Graphics drivers tend to use physical address - for DMA and avoid using DMA APIs. Setting this config - option permits the IOMMU driver to set a unity map for - all the OS-visible memory. Hence the driver can continue - to use physical addresses for DMA. - config DMAR_FLOPPY_WA def_bool y depends on DMAR ---help--- - Floppy disk drivers are know to bypass DMA API calls + Floppy disk drivers are known to bypass DMA API calls thereby failing to work when IOMMU is enabled. This workaround will setup a 1:1 mapping for the first - 16M to make floppy (an ISA device) work. + 16MiB to make floppy (an ISA device) work. config INTR_REMAP bool "Support for Interrupt Remapping (EXPERIMENTAL)" diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 3a4f347e2f8..fc121967cb5 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -1889,11 +1889,7 @@ static int iommu_prepare_identity_map(struct pci_dev *pdev, "IOMMU: Setting identity map for device %s [0x%Lx - 0x%Lx]\n", pci_name(pdev), start, end); - if (iommu_identity_mapping) - domain = si_domain; - else - /* page table init */ - domain = get_domain_for_dev(pdev, DEFAULT_DOMAIN_ADDRESS_WIDTH); + domain = get_domain_for_dev(pdev, DEFAULT_DOMAIN_ADDRESS_WIDTH); if (!domain) return -ENOMEM; @@ -1922,64 +1918,6 @@ static inline int iommu_prepare_rmrr_dev(struct dmar_rmrr_unit *rmrr, rmrr->end_address + 1); } -struct iommu_prepare_data { - struct pci_dev *pdev; - int ret; -}; - -static int __init iommu_prepare_work_fn(unsigned long start_pfn, - unsigned long end_pfn, void *datax) -{ - struct iommu_prepare_data *data; - - data = (struct iommu_prepare_data *)datax; - - data->ret = iommu_prepare_identity_map(data->pdev, - start_pfn<ret; - -} - -static int __init iommu_prepare_with_active_regions(struct pci_dev *pdev) -{ - int nid; - struct iommu_prepare_data data; - - data.pdev = pdev; - data.ret = 0; - - for_each_online_node(nid) { - work_with_active_regions(nid, iommu_prepare_work_fn, &data); - if (data.ret) - return data.ret; - } - return data.ret; -} - -#ifdef CONFIG_DMAR_GFX_WA -static void __init iommu_prepare_gfx_mapping(void) -{ - struct pci_dev *pdev = NULL; - int ret; - - for_each_pci_dev(pdev) { - if (pdev->dev.archdata.iommu == DUMMY_DEVICE_DOMAIN_INFO || - !IS_GFX_DEVICE(pdev)) - continue; - printk(KERN_INFO "IOMMU: gfx device %s 1-1 mapping\n", - pci_name(pdev)); - ret = iommu_prepare_with_active_regions(pdev); - if (ret) - printk(KERN_ERR "IOMMU: mapping reserved region failed\n"); - } -} -#else /* !CONFIG_DMAR_GFX_WA */ -static inline void iommu_prepare_gfx_mapping(void) -{ - return; -} -#endif - #ifdef CONFIG_DMAR_FLOPPY_WA static inline void iommu_prepare_isa(void) { @@ -1990,12 +1928,12 @@ static inline void iommu_prepare_isa(void) if (!pdev) return; - printk(KERN_INFO "IOMMU: Prepare 0-16M unity mapping for LPC\n"); + printk(KERN_INFO "IOMMU: Prepare 0-16MiB unity mapping for LPC\n"); ret = iommu_prepare_identity_map(pdev, 0, 16*1024*1024); if (ret) - printk(KERN_ERR "IOMMU: Failed to create 0-64M identity map, " - "floppy might not work\n"); + printk(KERN_ERR "IOMMU: Failed to create 0-16MiB identity map; " + "floppy might not work\n"); } #else @@ -2023,16 +1961,30 @@ static int __init init_context_pass_through(void) } static int md_domain_init(struct dmar_domain *domain, int guest_width); + +static int __init si_domain_work_fn(unsigned long start_pfn, + unsigned long end_pfn, void *datax) +{ + int *ret = datax; + + *ret = iommu_domain_identity_map(si_domain, + (uint64_t)start_pfn << PAGE_SHIFT, + (uint64_t)end_pfn << PAGE_SHIFT); + return *ret; + +} + static int si_domain_init(void) { struct dmar_drhd_unit *drhd; struct intel_iommu *iommu; - int ret = 0; + int nid, ret = 0; si_domain = alloc_domain(); if (!si_domain) return -EFAULT; + pr_debug("Identity mapping domain is domain %d\n", si_domain->id); for_each_active_iommu(iommu, drhd) { ret = iommu_attach_domain(si_domain, iommu); @@ -2049,6 +2001,12 @@ static int si_domain_init(void) si_domain->flags = DOMAIN_FLAG_STATIC_IDENTITY; + for_each_online_node(nid) { + work_with_active_regions(nid, si_domain_work_fn, &ret); + if (ret) + return ret; + } + return 0; } @@ -2102,13 +2060,14 @@ static int iommu_prepare_static_identity_mapping(void) if (ret) return -EFAULT; - printk(KERN_INFO "IOMMU: Setting identity map:\n"); for_each_pci_dev(pdev) { - ret = iommu_prepare_with_active_regions(pdev); - if (ret) { - printk(KERN_INFO "1:1 mapping to one domain failed.\n"); - return -EFAULT; - } + printk(KERN_INFO "IOMMU: identity mapping for device %s\n", + pci_name(pdev)); + + ret = domain_context_mapping(si_domain, pdev, + CONTEXT_TT_MULTI_LEVEL); + if (ret) + return ret; ret = domain_add_dev_info(si_domain, pdev); if (ret) return ret; @@ -2299,8 +2258,6 @@ int __init init_dmars(void) } } - iommu_prepare_gfx_mapping(); - iommu_prepare_isa(); } -- cgit v1.2.3 From dd4e831960e4f0214480fa96a53ca9bb7dd04927 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sat, 27 Jun 2009 16:21:20 +0100 Subject: intel-iommu: Change dma_set_pte_addr() to dma_set_pte_pfn() Add some helpers for converting between VT-d and normal system pfns, since system pages can be larger than VT-d pages. Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 28 ++++++++++++++++++++++++---- 1 file changed, 24 insertions(+), 4 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index fc121967cb5..852f40a913d 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -65,6 +65,26 @@ #define PHYSICAL_PAGE_MASK PAGE_MASK #endif +/* VT-d pages must always be _smaller_ than MM pages. Otherwise things + are never going to work. */ +static inline unsigned long dma_to_mm_pfn(unsigned long dma_pfn) +{ + return dma_pfn >> (PAGE_SHIFT - VTD_PAGE_SHIFT); +} + +static inline unsigned long mm_to_dma_pfn(unsigned long mm_pfn) +{ + return mm_pfn << (PAGE_SHIFT - VTD_PAGE_SHIFT); +} +static inline unsigned long page_to_dma_pfn(struct page *pg) +{ + return mm_to_dma_pfn(page_to_pfn(pg)); +} +static inline unsigned long virt_to_dma_pfn(void *p) +{ + return page_to_dma_pfn(virt_to_page(p)); +} + /* global iommu list, set NULL for ignored DMAR units */ static struct intel_iommu **g_iommus; @@ -207,9 +227,9 @@ static inline u64 dma_pte_addr(struct dma_pte *pte) return (pte->val & VTD_PAGE_MASK); } -static inline void dma_set_pte_addr(struct dma_pte *pte, u64 addr) +static inline void dma_set_pte_pfn(struct dma_pte *pte, unsigned long pfn) { - pte->val |= (addr & VTD_PAGE_MASK); + pte->val |= (uint64_t)pfn << VTD_PAGE_SHIFT; } static inline bool dma_pte_present(struct dma_pte *pte) @@ -702,7 +722,7 @@ static struct dma_pte * addr_to_dma_pte(struct dmar_domain *domain, u64 addr) return NULL; } domain_flush_cache(domain, tmp_page, PAGE_SIZE); - dma_set_pte_addr(pte, virt_to_phys(tmp_page)); + dma_set_pte_pfn(pte, virt_to_dma_pfn(tmp_page)); /* * high level table always sets r/w, last level page * table control read/write @@ -1648,7 +1668,7 @@ domain_page_mapping(struct dmar_domain *domain, dma_addr_t iova, * touches the iova range */ BUG_ON(dma_pte_addr(pte)); - dma_set_pte_addr(pte, start_pfn << VTD_PAGE_SHIFT); + dma_set_pte_pfn(pte, start_pfn); dma_set_pte_prot(pte, prot); if (prot & DMA_PTE_SNP) dma_set_pte_snp(pte); -- cgit v1.2.3 From 77dfa56c94d2855a25ff552b74980a5538e129f8 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sat, 27 Jun 2009 16:40:08 +0100 Subject: intel-iommu: Change address_level_offset() to pfn_level_offset() We're shifting the inputs for now, but that'll change... Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 852f40a913d..529c1c13048 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -671,9 +671,9 @@ static inline unsigned int level_to_offset_bits(int level) return (12 + (level - 1) * LEVEL_STRIDE); } -static inline int address_level_offset(u64 addr, int level) +static inline int pfn_level_offset(unsigned long pfn, int level) { - return ((addr >> level_to_offset_bits(level)) & LEVEL_MASK); + return (pfn >> (level_to_offset_bits(level) - 12)) & LEVEL_MASK; } static inline u64 level_mask(int level) @@ -708,7 +708,7 @@ static struct dma_pte * addr_to_dma_pte(struct dmar_domain *domain, u64 addr) while (level > 0) { void *tmp_page; - offset = address_level_offset(addr, level); + offset = pfn_level_offset(addr >> VTD_PAGE_SHIFT, level); pte = &parent[offset]; if (level == 1) break; @@ -749,7 +749,7 @@ static struct dma_pte *dma_addr_level_pte(struct dmar_domain *domain, u64 addr, parent = domain->pgd; while (level <= total) { - offset = address_level_offset(addr, total); + offset = pfn_level_offset(addr >> VTD_PAGE_SHIFT, total); pte = &parent[offset]; if (level == total) return pte; -- cgit v1.2.3 From 90dcfb5eb2fd427b16135a14f176a6902750b6b4 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sat, 27 Jun 2009 17:14:59 +0100 Subject: intel-iommu: Change dma_addr_level_pte() to dma_pfn_level_pte() Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 529c1c13048..edd39d348a9 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -740,8 +740,9 @@ static struct dma_pte * addr_to_dma_pte(struct dmar_domain *domain, u64 addr) } /* return address's pte at specific level */ -static struct dma_pte *dma_addr_level_pte(struct dmar_domain *domain, u64 addr, - int level) +static struct dma_pte *dma_pfn_level_pte(struct dmar_domain *domain, + unsigned long pfn, + int level) { struct dma_pte *parent, *pte = NULL; int total = agaw_to_level(domain->agaw); @@ -749,7 +750,7 @@ static struct dma_pte *dma_addr_level_pte(struct dmar_domain *domain, u64 addr, parent = domain->pgd; while (level <= total) { - offset = pfn_level_offset(addr >> VTD_PAGE_SHIFT, total); + offset = pfn_level_offset(pfn, total); pte = &parent[offset]; if (level == total) return pte; @@ -768,7 +769,7 @@ static void dma_pte_clear_one(struct dmar_domain *domain, u64 addr) struct dma_pte *pte = NULL; /* get last level pte */ - pte = dma_addr_level_pte(domain, addr, 1); + pte = dma_pfn_level_pte(domain, addr >> VTD_PAGE_SHIFT, 1); if (pte) { dma_clear_pte(pte); @@ -817,7 +818,8 @@ static void dma_pte_free_pagetable(struct dmar_domain *domain, return; while (tmp < end) { - pte = dma_addr_level_pte(domain, tmp, level); + pte = dma_pfn_level_pte(domain, tmp >> VTD_PAGE_SHIFT, + level); if (pte) { free_pgtable_page( phys_to_virt(dma_pte_addr(pte))); -- cgit v1.2.3 From a75f7cf94f01717c5103138319b96752ee2a2be9 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sat, 27 Jun 2009 17:44:39 +0100 Subject: intel-iommu: Make dma_pte_clear_one() take pfn not address Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index edd39d348a9..40eae2097ac 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -764,12 +764,12 @@ static struct dma_pte *dma_pfn_level_pte(struct dmar_domain *domain, } /* clear one page's page table */ -static void dma_pte_clear_one(struct dmar_domain *domain, u64 addr) +static void dma_pte_clear_one(struct dmar_domain *domain, unsigned long pfn) { struct dma_pte *pte = NULL; /* get last level pte */ - pte = dma_pfn_level_pte(domain, addr >> VTD_PAGE_SHIFT, 1); + pte = dma_pfn_level_pte(domain, pfn, 1); if (pte) { dma_clear_pte(pte); @@ -792,7 +792,7 @@ static void dma_pte_clear_range(struct dmar_domain *domain, u64 start, u64 end) /* we don't need lock here, nobody else touches the iova range */ while (npages--) { - dma_pte_clear_one(domain, start); + dma_pte_clear_one(domain, start >> VTD_PAGE_SHIFT); start += VTD_PAGE_SIZE; } } -- cgit v1.2.3 From 66eae8469e4e4ba6f4ca7ef82103c78f6d645583 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sat, 27 Jun 2009 19:00:32 +0100 Subject: intel-iommu: Don't just mask out too-big physical addresses; BUG() instead Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 40eae2097ac..ad367f53a2b 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -700,8 +700,7 @@ static struct dma_pte * addr_to_dma_pte(struct dmar_domain *domain, u64 addr) unsigned long flags; BUG_ON(!domain->pgd); - - addr &= (((u64)1) << addr_width) - 1; + BUG_ON(addr >> addr_width); parent = domain->pgd; spin_lock_irqsave(&domain->mapping_lock, flags); @@ -783,8 +782,9 @@ static void dma_pte_clear_range(struct dmar_domain *domain, u64 start, u64 end) int addr_width = agaw_to_width(domain->agaw); int npages; - start &= (((u64)1) << addr_width) - 1; - end &= (((u64)1) << addr_width) - 1; + BUG_ON(start >> addr_width); + BUG_ON((end-1) >> addr_width); + /* in case it's partial page */ start &= PAGE_MASK; end = PAGE_ALIGN(end); @@ -807,8 +807,8 @@ static void dma_pte_free_pagetable(struct dmar_domain *domain, int level; u64 tmp; - start &= (((u64)1) << addr_width) - 1; - end &= (((u64)1) << addr_width) - 1; + BUG_ON(start >> addr_width); + BUG_ON(end >> addr_width); /* we don't need lock here, nobody else touches the iova range */ level = 2; @@ -1654,7 +1654,7 @@ domain_page_mapping(struct dmar_domain *domain, dma_addr_t iova, int index; int addr_width = agaw_to_width(domain->agaw); - hpa &= (((u64)1) << addr_width) - 1; + BUG_ON(hpa >> addr_width); if ((prot & (DMA_PTE_READ|DMA_PTE_WRITE)) == 0) return -EINVAL; -- cgit v1.2.3 From 04b18e65dd5a3e544f07f4bcfa8fb52704a1833b Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sat, 27 Jun 2009 19:15:01 +0100 Subject: intel-iommu: Make dma_pte_clear_range() use pfns Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 22 +++++++++------------- 1 file changed, 9 insertions(+), 13 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index ad367f53a2b..d4217f73715 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -779,21 +779,17 @@ static void dma_pte_clear_one(struct dmar_domain *domain, unsigned long pfn) /* clear last level pte, a tlb flush should be followed */ static void dma_pte_clear_range(struct dmar_domain *domain, u64 start, u64 end) { - int addr_width = agaw_to_width(domain->agaw); - int npages; - - BUG_ON(start >> addr_width); - BUG_ON((end-1) >> addr_width); + unsigned long start_pfn = IOVA_PFN(start); + unsigned long end_pfn = IOVA_PFN(end-1); + int addr_width = agaw_to_width(domain->agaw) - VTD_PAGE_SHIFT; - /* in case it's partial page */ - start &= PAGE_MASK; - end = PAGE_ALIGN(end); - npages = (end - start) / VTD_PAGE_SIZE; + BUG_ON(addr_width < BITS_PER_LONG && start_pfn >> addr_width); + BUG_ON(addr_width < BITS_PER_LONG && end_pfn >> addr_width); - /* we don't need lock here, nobody else touches the iova range */ - while (npages--) { - dma_pte_clear_one(domain, start >> VTD_PAGE_SHIFT); - start += VTD_PAGE_SIZE; + /* we don't need lock here; nobody else touches the iova range */ + while (start_pfn <= end_pfn) { + dma_pte_clear_one(domain, start_pfn); + start_pfn++; } } -- cgit v1.2.3 From 595badf5d65d50300319e6178e6df005ea501f70 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sat, 27 Jun 2009 22:09:11 +0100 Subject: intel-iommu: Make dma_pte_clear_range() take pfns as argument Noting that this is now an _inclusive_ range. Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 32 +++++++++++++++++++------------- 1 file changed, 19 insertions(+), 13 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index d4217f73715..ff8b7ce4a01 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -56,6 +56,7 @@ #define MAX_AGAW_WIDTH 64 #define DOMAIN_MAX_ADDR(gaw) ((((u64)1) << gaw) - 1) +#define DOMAIN_MAX_PFN(gaw) ((((u64)1) << (gaw-VTD_PAGE_SHIFT)) - 1) #define IOVA_PFN(addr) ((addr) >> PAGE_SHIFT) #define DMA_32BIT_PFN IOVA_PFN(DMA_BIT_MASK(32)) @@ -777,17 +778,17 @@ static void dma_pte_clear_one(struct dmar_domain *domain, unsigned long pfn) } /* clear last level pte, a tlb flush should be followed */ -static void dma_pte_clear_range(struct dmar_domain *domain, u64 start, u64 end) +static void dma_pte_clear_range(struct dmar_domain *domain, + unsigned long start_pfn, + unsigned long last_pfn) { - unsigned long start_pfn = IOVA_PFN(start); - unsigned long end_pfn = IOVA_PFN(end-1); int addr_width = agaw_to_width(domain->agaw) - VTD_PAGE_SHIFT; BUG_ON(addr_width < BITS_PER_LONG && start_pfn >> addr_width); - BUG_ON(addr_width < BITS_PER_LONG && end_pfn >> addr_width); + BUG_ON(addr_width < BITS_PER_LONG && last_pfn >> addr_width); /* we don't need lock here; nobody else touches the iova range */ - while (start_pfn <= end_pfn) { + while (start_pfn <= last_pfn) { dma_pte_clear_one(domain, start_pfn); start_pfn++; } @@ -1424,7 +1425,7 @@ static void domain_exit(struct dmar_domain *domain) end = end & (~PAGE_MASK); /* clear ptes */ - dma_pte_clear_range(domain, 0, end); + dma_pte_clear_range(domain, 0, DOMAIN_MAX_PFN(domain->gaw)); /* free page tables */ dma_pte_free_pagetable(domain, 0, end); @@ -1890,7 +1891,8 @@ static int iommu_domain_identity_map(struct dmar_domain *domain, * RMRR range might have overlap with physical memory range, * clear it first */ - dma_pte_clear_range(domain, base, base + size); + dma_pte_clear_range(domain, base >> VTD_PAGE_SHIFT, + (base + size - 1) >> VTD_PAGE_SHIFT); return domain_page_mapping(domain, base, base, size, DMA_PTE_READ|DMA_PTE_WRITE); @@ -2618,7 +2620,8 @@ static void intel_unmap_page(struct device *dev, dma_addr_t dev_addr, pci_name(pdev), size, (unsigned long long)start_addr); /* clear the whole page */ - dma_pte_clear_range(domain, start_addr, start_addr + size); + dma_pte_clear_range(domain, start_addr >> VTD_PAGE_SHIFT, + (start_addr + size - 1) >> VTD_PAGE_SHIFT); /* free page tables */ dma_pte_free_pagetable(domain, start_addr, start_addr + size); if (intel_iommu_strict) { @@ -2710,7 +2713,8 @@ static void intel_unmap_sg(struct device *hwdev, struct scatterlist *sglist, start_addr = iova->pfn_lo << PAGE_SHIFT; /* clear the whole page */ - dma_pte_clear_range(domain, start_addr, start_addr + size); + dma_pte_clear_range(domain, start_addr >> VTD_PAGE_SHIFT, + (start_addr + size - 1) >> VTD_PAGE_SHIFT); /* free page tables */ dma_pte_free_pagetable(domain, start_addr, start_addr + size); @@ -2792,8 +2796,9 @@ static int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int ne size, prot); if (ret) { /* clear the page */ - dma_pte_clear_range(domain, start_addr, - start_addr + offset); + dma_pte_clear_range(domain, + start_addr >> VTD_PAGE_SHIFT, + (start_addr + offset - 1) >> VTD_PAGE_SHIFT); /* free page tables */ dma_pte_free_pagetable(domain, start_addr, start_addr + offset); @@ -3382,7 +3387,7 @@ static void vm_domain_exit(struct dmar_domain *domain) end = end & (~VTD_PAGE_MASK); /* clear ptes */ - dma_pte_clear_range(domain, 0, end); + dma_pte_clear_range(domain, 0, DOMAIN_MAX_PFN(domain->gaw)); /* free page tables */ dma_pte_free_pagetable(domain, 0, end); @@ -3526,7 +3531,8 @@ static void intel_iommu_unmap_range(struct iommu_domain *domain, /* The address might not be aligned */ base = iova & VTD_PAGE_MASK; size = VTD_PAGE_ALIGN(size); - dma_pte_clear_range(dmar_domain, base, base + size); + dma_pte_clear_range(dmar_domain, base >> VTD_PAGE_SHIFT, + (base + size - 1) >> VTD_PAGE_SHIFT); if (dmar_domain->max_addr == base + size) dmar_domain->max_addr = base; -- cgit v1.2.3 From 6660c63a79a639b86e3a709e25a8c4fc3ab24770 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sat, 27 Jun 2009 22:41:00 +0100 Subject: intel-iommu: Make dma_pte_free_pagetable() use pfns Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 40 ++++++++++++++++++++++------------------ 1 file changed, 22 insertions(+), 18 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index ff8b7ce4a01..1526864a9d6 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -669,27 +669,27 @@ static inline int width_to_agaw(int width) static inline unsigned int level_to_offset_bits(int level) { - return (12 + (level - 1) * LEVEL_STRIDE); + return (level - 1) * LEVEL_STRIDE; } static inline int pfn_level_offset(unsigned long pfn, int level) { - return (pfn >> (level_to_offset_bits(level) - 12)) & LEVEL_MASK; + return (pfn >> level_to_offset_bits(level)) & LEVEL_MASK; } -static inline u64 level_mask(int level) +static inline unsigned long level_mask(int level) { - return ((u64)-1 << level_to_offset_bits(level)); + return -1UL << level_to_offset_bits(level); } -static inline u64 level_size(int level) +static inline unsigned long level_size(int level) { - return ((u64)1 << level_to_offset_bits(level)); + return 1UL << level_to_offset_bits(level); } -static inline u64 align_to_level(u64 addr, int level) +static inline unsigned long align_to_level(unsigned long pfn, int level) { - return ((addr + level_size(level) - 1) & level_mask(level)); + return (pfn + level_size(level) - 1) & level_mask(level); } static struct dma_pte * addr_to_dma_pte(struct dmar_domain *domain, u64 addr) @@ -798,25 +798,29 @@ static void dma_pte_clear_range(struct dmar_domain *domain, static void dma_pte_free_pagetable(struct dmar_domain *domain, u64 start, u64 end) { - int addr_width = agaw_to_width(domain->agaw); + int addr_width = agaw_to_width(domain->agaw) - VTD_PAGE_SHIFT; + unsigned long start_pfn = start >> VTD_PAGE_SHIFT; + unsigned long last_pfn = (end-1) >> VTD_PAGE_SHIFT; struct dma_pte *pte; int total = agaw_to_level(domain->agaw); int level; - u64 tmp; + unsigned long tmp; - BUG_ON(start >> addr_width); - BUG_ON(end >> addr_width); + BUG_ON(addr_width < BITS_PER_LONG && start_pfn >> addr_width); + BUG_ON(addr_width < BITS_PER_LONG && last_pfn >> addr_width); /* we don't need lock here, nobody else touches the iova range */ level = 2; while (level <= total) { - tmp = align_to_level(start, level); - if (tmp >= end || (tmp + level_size(level) > end)) + tmp = align_to_level(start_pfn, level); + + /* Only clear this pte/pmd if we're asked to clear its + _whole_ range */ + if (tmp + level_size(level) - 1 > last_pfn) return; - while (tmp < end) { - pte = dma_pfn_level_pte(domain, tmp >> VTD_PAGE_SHIFT, - level); + while (tmp <= last_pfn) { + pte = dma_pfn_level_pte(domain, tmp, level); if (pte) { free_pgtable_page( phys_to_virt(dma_pte_addr(pte))); @@ -828,7 +832,7 @@ static void dma_pte_free_pagetable(struct dmar_domain *domain, level++; } /* free pgd */ - if (start == 0 && end >= ((((u64)1) << addr_width) - 1)) { + if (start == 0 && last_pfn == DOMAIN_MAX_PFN(domain->gaw)) { free_pgtable_page(domain->pgd); domain->pgd = NULL; } -- cgit v1.2.3 From d794dc9b302c2781c571c10dedb8094e223d31b8 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sun, 28 Jun 2009 00:27:49 +0100 Subject: intel-iommu: Make dma_pte_free_pagetable() take pfns as argument With some cleanup of intel_unmap_page(), intel_unmap_sg() and vm_domain_exit() to no longer play with 64-bit addresses. Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 68 +++++++++++++++++++---------------------------- 1 file changed, 28 insertions(+), 40 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 1526864a9d6..fc593adb049 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -796,11 +796,10 @@ static void dma_pte_clear_range(struct dmar_domain *domain, /* free page table pages. last level pte should already be cleared */ static void dma_pte_free_pagetable(struct dmar_domain *domain, - u64 start, u64 end) + unsigned long start_pfn, + unsigned long last_pfn) { int addr_width = agaw_to_width(domain->agaw) - VTD_PAGE_SHIFT; - unsigned long start_pfn = start >> VTD_PAGE_SHIFT; - unsigned long last_pfn = (end-1) >> VTD_PAGE_SHIFT; struct dma_pte *pte; int total = agaw_to_level(domain->agaw); int level; @@ -832,7 +831,7 @@ static void dma_pte_free_pagetable(struct dmar_domain *domain, level++; } /* free pgd */ - if (start == 0 && last_pfn == DOMAIN_MAX_PFN(domain->gaw)) { + if (start_pfn == 0 && last_pfn == DOMAIN_MAX_PFN(domain->gaw)) { free_pgtable_page(domain->pgd); domain->pgd = NULL; } @@ -1416,7 +1415,6 @@ static void domain_exit(struct dmar_domain *domain) { struct dmar_drhd_unit *drhd; struct intel_iommu *iommu; - u64 end; /* Domain 0 is reserved, so dont process it */ if (!domain) @@ -1425,14 +1423,12 @@ static void domain_exit(struct dmar_domain *domain) domain_remove_dev_info(domain); /* destroy iovas */ put_iova_domain(&domain->iovad); - end = DOMAIN_MAX_ADDR(domain->gaw); - end = end & (~PAGE_MASK); /* clear ptes */ dma_pte_clear_range(domain, 0, DOMAIN_MAX_PFN(domain->gaw)); /* free page tables */ - dma_pte_free_pagetable(domain, 0, end); + dma_pte_free_pagetable(domain, 0, DOMAIN_MAX_PFN(domain->gaw)); for_each_active_iommu(iommu, drhd) if (test_bit(iommu->seq_id, &domain->iommu_bmp)) @@ -2601,7 +2597,7 @@ static void intel_unmap_page(struct device *dev, dma_addr_t dev_addr, { struct pci_dev *pdev = to_pci_dev(dev); struct dmar_domain *domain; - unsigned long start_addr; + unsigned long start_pfn, last_pfn; struct iova *iova; struct intel_iommu *iommu; @@ -2617,20 +2613,22 @@ static void intel_unmap_page(struct device *dev, dma_addr_t dev_addr, if (!iova) return; - start_addr = iova->pfn_lo << PAGE_SHIFT; - size = aligned_size((u64)dev_addr, size); + start_pfn = mm_to_dma_pfn(iova->pfn_lo); + last_pfn = mm_to_dma_pfn(iova->pfn_hi + 1) - 1; - pr_debug("Device %s unmapping: %zx@%llx\n", - pci_name(pdev), size, (unsigned long long)start_addr); + pr_debug("Device %s unmapping: pfn %lx-%lx\n", + pci_name(pdev), start_pfn, last_pfn); /* clear the whole page */ - dma_pte_clear_range(domain, start_addr >> VTD_PAGE_SHIFT, - (start_addr + size - 1) >> VTD_PAGE_SHIFT); + dma_pte_clear_range(domain, start_pfn, last_pfn); + /* free page tables */ - dma_pte_free_pagetable(domain, start_addr, start_addr + size); + dma_pte_free_pagetable(domain, start_pfn, last_pfn); + if (intel_iommu_strict) { - iommu_flush_iotlb_psi(iommu, domain->id, start_addr, - size >> VTD_PAGE_SHIFT); + iommu_flush_iotlb_psi(iommu, domain->id, + start_pfn << VTD_PAGE_SHIFT, + last_pfn - start_pfn + 1); /* free iova */ __free_iova(&domain->iovad, iova); } else { @@ -2688,14 +2686,10 @@ static void intel_unmap_sg(struct device *hwdev, struct scatterlist *sglist, int nelems, enum dma_data_direction dir, struct dma_attrs *attrs) { - int i; struct pci_dev *pdev = to_pci_dev(hwdev); struct dmar_domain *domain; - unsigned long start_addr; + unsigned long start_pfn, last_pfn; struct iova *iova; - size_t size = 0; - phys_addr_t addr; - struct scatterlist *sg; struct intel_iommu *iommu; if (iommu_no_mapping(pdev)) @@ -2709,21 +2703,19 @@ static void intel_unmap_sg(struct device *hwdev, struct scatterlist *sglist, iova = find_iova(&domain->iovad, IOVA_PFN(sglist[0].dma_address)); if (!iova) return; - for_each_sg(sglist, sg, nelems, i) { - addr = page_to_phys(sg_page(sg)) + sg->offset; - size += aligned_size((u64)addr, sg->length); - } - start_addr = iova->pfn_lo << PAGE_SHIFT; + start_pfn = mm_to_dma_pfn(iova->pfn_lo); + last_pfn = mm_to_dma_pfn(iova->pfn_hi + 1) - 1; /* clear the whole page */ - dma_pte_clear_range(domain, start_addr >> VTD_PAGE_SHIFT, - (start_addr + size - 1) >> VTD_PAGE_SHIFT); + dma_pte_clear_range(domain, start_pfn, last_pfn); + /* free page tables */ - dma_pte_free_pagetable(domain, start_addr, start_addr + size); + dma_pte_free_pagetable(domain, start_pfn, last_pfn); - iommu_flush_iotlb_psi(iommu, domain->id, start_addr, - size >> VTD_PAGE_SHIFT); + iommu_flush_iotlb_psi(iommu, domain->id, + start_pfn << VTD_PAGE_SHIFT, + (last_pfn - start_pfn + 1)); /* free iova */ __free_iova(&domain->iovad, iova); @@ -2804,8 +2796,8 @@ static int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int ne start_addr >> VTD_PAGE_SHIFT, (start_addr + offset - 1) >> VTD_PAGE_SHIFT); /* free page tables */ - dma_pte_free_pagetable(domain, start_addr, - start_addr + offset); + dma_pte_free_pagetable(domain, start_addr >> VTD_PAGE_SHIFT, + (start_addr + offset - 1) >> VTD_PAGE_SHIFT); /* free iova */ __free_iova(&domain->iovad, iova); return 0; @@ -3378,8 +3370,6 @@ static void iommu_free_vm_domain(struct dmar_domain *domain) static void vm_domain_exit(struct dmar_domain *domain) { - u64 end; - /* Domain 0 is reserved, so dont process it */ if (!domain) return; @@ -3387,14 +3377,12 @@ static void vm_domain_exit(struct dmar_domain *domain) vm_domain_remove_all_dev_info(domain); /* destroy iovas */ put_iova_domain(&domain->iovad); - end = DOMAIN_MAX_ADDR(domain->gaw); - end = end & (~VTD_PAGE_MASK); /* clear ptes */ dma_pte_clear_range(domain, 0, DOMAIN_MAX_PFN(domain->gaw)); /* free page tables */ - dma_pte_free_pagetable(domain, 0, end); + dma_pte_free_pagetable(domain, 0, DOMAIN_MAX_PFN(domain->gaw)); iommu_free_vm_domain(domain); free_domain_mem(domain); -- cgit v1.2.3 From 163cc52ccd2cc5c5ae4e1c886f6fde8547feed2a Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sun, 28 Jun 2009 00:51:17 +0100 Subject: intel-iommu: Clean up intel_iommu_unmap_range() Use unaligned address for domain->max_addr. That algorithm isn't ideal anyway -- we should probably just look at the last iova in the tree. Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index fc593adb049..21dc7731186 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -3491,7 +3491,7 @@ static int intel_iommu_map_range(struct iommu_domain *domain, if ((iommu_prot & IOMMU_CACHE) && dmar_domain->iommu_snooping) prot |= DMA_PTE_SNP; - max_addr = (iova & VTD_PAGE_MASK) + VTD_PAGE_ALIGN(size); + max_addr = iova + size; if (dmar_domain->max_addr < max_addr) { int min_agaw; u64 end; @@ -3518,16 +3518,12 @@ static void intel_iommu_unmap_range(struct iommu_domain *domain, unsigned long iova, size_t size) { struct dmar_domain *dmar_domain = domain->priv; - dma_addr_t base; - /* The address might not be aligned */ - base = iova & VTD_PAGE_MASK; - size = VTD_PAGE_ALIGN(size); - dma_pte_clear_range(dmar_domain, base >> VTD_PAGE_SHIFT, - (base + size - 1) >> VTD_PAGE_SHIFT); + dma_pte_clear_range(dmar_domain, iova >> VTD_PAGE_SHIFT, + (iova + size - 1) >> VTD_PAGE_SHIFT); - if (dmar_domain->max_addr == base + size) - dmar_domain->max_addr = base; + if (dmar_domain->max_addr == iova + size) + dmar_domain->max_addr = iova; } static phys_addr_t intel_iommu_iova_to_phys(struct iommu_domain *domain, -- cgit v1.2.3 From b026fd28ea23af24a3eea6e5be3f3d0193a8e87d Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sun, 28 Jun 2009 10:37:25 +0100 Subject: intel-iommu: Change addr_to_dma_pte() to pfn_to_dma_pte() Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 21dc7731186..dfbabd151a9 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -692,23 +692,24 @@ static inline unsigned long align_to_level(unsigned long pfn, int level) return (pfn + level_size(level) - 1) & level_mask(level); } -static struct dma_pte * addr_to_dma_pte(struct dmar_domain *domain, u64 addr) +static struct dma_pte *pfn_to_dma_pte(struct dmar_domain *domain, + unsigned long pfn) { - int addr_width = agaw_to_width(domain->agaw); + int addr_width = agaw_to_width(domain->agaw) - VTD_PAGE_SHIFT; struct dma_pte *parent, *pte = NULL; int level = agaw_to_level(domain->agaw); int offset; unsigned long flags; BUG_ON(!domain->pgd); - BUG_ON(addr >> addr_width); + BUG_ON(addr_width < BITS_PER_LONG && pfn >> addr_width); parent = domain->pgd; spin_lock_irqsave(&domain->mapping_lock, flags); while (level > 0) { void *tmp_page; - offset = pfn_level_offset(addr >> VTD_PAGE_SHIFT, level); + offset = pfn_level_offset(pfn, level); pte = &parent[offset]; if (level == 1) break; @@ -1660,7 +1661,7 @@ domain_page_mapping(struct dmar_domain *domain, dma_addr_t iova, end_pfn = (VTD_PAGE_ALIGN(((u64)hpa) + size)) >> VTD_PAGE_SHIFT; index = 0; while (start_pfn < end_pfn) { - pte = addr_to_dma_pte(domain, iova + VTD_PAGE_SIZE * index); + pte = pfn_to_dma_pte(domain, (iova >> VTD_PAGE_SHIFT) + index); if (!pte) return -ENOMEM; /* We don't need lock here, nobody else @@ -3533,7 +3534,7 @@ static phys_addr_t intel_iommu_iova_to_phys(struct iommu_domain *domain, struct dma_pte *pte; u64 phys = 0; - pte = addr_to_dma_pte(dmar_domain, iova); + pte = pfn_to_dma_pte(dmar_domain, iova >> VTD_PAGE_SHIFT); if (pte) phys = dma_pte_addr(pte); -- cgit v1.2.3 From 1c5a46ed49e37f56f8aa9000bb1c2ac59670c372 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sun, 28 Jun 2009 10:53:37 +0100 Subject: intel-iommu: Clean up address handling in domain_page_mapping() No more masking and alignment; just use pfns. Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index dfbabd151a9..f08d7865fe0 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -1647,20 +1647,18 @@ static int domain_page_mapping(struct dmar_domain *domain, dma_addr_t iova, u64 hpa, size_t size, int prot) { - u64 start_pfn, end_pfn; + unsigned long start_pfn = hpa >> VTD_PAGE_SHIFT; + unsigned long last_pfn = (hpa + size - 1) >> VTD_PAGE_SHIFT; struct dma_pte *pte; - int index; - int addr_width = agaw_to_width(domain->agaw); + int index = 0; + int addr_width = agaw_to_width(domain->agaw) - VTD_PAGE_SHIFT; - BUG_ON(hpa >> addr_width); + BUG_ON(addr_width < BITS_PER_LONG && last_pfn >> addr_width); if ((prot & (DMA_PTE_READ|DMA_PTE_WRITE)) == 0) return -EINVAL; - iova &= PAGE_MASK; - start_pfn = ((u64)hpa) >> VTD_PAGE_SHIFT; - end_pfn = (VTD_PAGE_ALIGN(((u64)hpa) + size)) >> VTD_PAGE_SHIFT; - index = 0; - while (start_pfn < end_pfn) { + + while (start_pfn <= last_pfn) { pte = pfn_to_dma_pte(domain, (iova >> VTD_PAGE_SHIFT) + index); if (!pte) return -ENOMEM; -- cgit v1.2.3 From 61df744314079e8cb8cdec75f517cf0e704e41ef Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sun, 28 Jun 2009 11:55:58 +0100 Subject: intel-iommu: Introduce domain_pfn_mapping() ... and use it in the trivial cases; the other callers want individual (and bisectable) attention, since I screwed them up the first time... Make the BUG_ON() happen on too-large virtual address rather than physical address, too. That's the one we care about. Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 38 ++++++++++++++++++++++++-------------- 1 file changed, 24 insertions(+), 14 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index f08d7865fe0..7540ef91d5f 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -1643,40 +1643,48 @@ static int domain_context_mapped(struct pci_dev *pdev) tmp->devfn); } -static int -domain_page_mapping(struct dmar_domain *domain, dma_addr_t iova, - u64 hpa, size_t size, int prot) +static int domain_pfn_mapping(struct dmar_domain *domain, unsigned long iov_pfn, + unsigned long phys_pfn, unsigned long nr_pages, + int prot) { - unsigned long start_pfn = hpa >> VTD_PAGE_SHIFT; - unsigned long last_pfn = (hpa + size - 1) >> VTD_PAGE_SHIFT; struct dma_pte *pte; - int index = 0; int addr_width = agaw_to_width(domain->agaw) - VTD_PAGE_SHIFT; - BUG_ON(addr_width < BITS_PER_LONG && last_pfn >> addr_width); + BUG_ON(addr_width < BITS_PER_LONG && (iov_pfn + nr_pages - 1) >> addr_width); if ((prot & (DMA_PTE_READ|DMA_PTE_WRITE)) == 0) return -EINVAL; - while (start_pfn <= last_pfn) { - pte = pfn_to_dma_pte(domain, (iova >> VTD_PAGE_SHIFT) + index); + while (nr_pages--) { + pte = pfn_to_dma_pte(domain, iov_pfn); if (!pte) return -ENOMEM; /* We don't need lock here, nobody else * touches the iova range */ BUG_ON(dma_pte_addr(pte)); - dma_set_pte_pfn(pte, start_pfn); + dma_set_pte_pfn(pte, phys_pfn); dma_set_pte_prot(pte, prot); if (prot & DMA_PTE_SNP) dma_set_pte_snp(pte); domain_flush_cache(domain, pte, sizeof(*pte)); - start_pfn++; - index++; + iov_pfn++; + phys_pfn++; } return 0; } +static int domain_page_mapping(struct dmar_domain *domain, dma_addr_t iova, + u64 hpa, size_t size, int prot) +{ + unsigned long first_pfn = hpa >> VTD_PAGE_SHIFT; + unsigned long last_pfn = (hpa + size - 1) >> VTD_PAGE_SHIFT; + + return domain_pfn_mapping(domain, iova >> VTD_PAGE_SHIFT, first_pfn, + last_pfn - first_pfn + 1, prot); + +} + static void iommu_detach_dev(struct intel_iommu *iommu, u8 bus, u8 devfn) { if (!iommu) @@ -1893,8 +1901,10 @@ static int iommu_domain_identity_map(struct dmar_domain *domain, dma_pte_clear_range(domain, base >> VTD_PAGE_SHIFT, (base + size - 1) >> VTD_PAGE_SHIFT); - return domain_page_mapping(domain, base, base, size, - DMA_PTE_READ|DMA_PTE_WRITE); + return domain_pfn_mapping(domain, base >> VTD_PAGE_SHIFT, + base >> VTD_PAGE_SHIFT, + size >> VTD_PAGE_SHIFT, + DMA_PTE_READ|DMA_PTE_WRITE); } static int iommu_prepare_identity_map(struct pci_dev *pdev, -- cgit v1.2.3 From 0ab36de274ab094c3992b50c9c48c5c89072ec94 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sun, 28 Jun 2009 14:01:43 +0100 Subject: intel-iommu: Use domain_pfn_mapping() in __intel_map_single() Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 18 ++++++++---------- 1 file changed, 8 insertions(+), 10 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 7540ef91d5f..dccd0a7b7a5 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -2477,14 +2477,12 @@ static dma_addr_t __intel_map_single(struct device *hwdev, phys_addr_t paddr, return 0; iommu = domain_get_iommu(domain); - size = aligned_size((u64)paddr, size); + size = aligned_size(paddr, size) >> VTD_PAGE_SHIFT; - iova = __intel_alloc_iova(hwdev, domain, size, pdev->dma_mask); + iova = __intel_alloc_iova(hwdev, domain, size << VTD_PAGE_SHIFT, pdev->dma_mask); if (!iova) goto error; - start_paddr = (phys_addr_t)iova->pfn_lo << PAGE_SHIFT; - /* * Check if DMAR supports zero-length reads on write only * mappings.. @@ -2500,20 +2498,20 @@ static dma_addr_t __intel_map_single(struct device *hwdev, phys_addr_t paddr, * might have two guest_addr mapping to the same host paddr, but this * is not a big problem */ - ret = domain_page_mapping(domain, start_paddr, - ((u64)paddr) & PHYSICAL_PAGE_MASK, - size, prot); + ret = domain_pfn_mapping(domain, mm_to_dma_pfn(iova->pfn_lo), + paddr >> VTD_PAGE_SHIFT, size, prot); if (ret) goto error; + start_paddr = (phys_addr_t)iova->pfn_lo << PAGE_SHIFT; + /* it's a non-present to present mapping. Only flush if caching mode */ if (cap_caching_mode(iommu->cap)) - iommu_flush_iotlb_psi(iommu, 0, start_paddr, - size >> VTD_PAGE_SHIFT); + iommu_flush_iotlb_psi(iommu, 0, start_paddr, size); else iommu_flush_write_buffer(iommu); - return start_paddr + ((u64)paddr & (~PAGE_MASK)); + return start_paddr + (paddr & (~PAGE_MASK)); error: if (iova) -- cgit v1.2.3 From ad05122162b67f64d5a1c6d35e001f7a88619b88 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sun, 28 Jun 2009 14:22:28 +0100 Subject: intel-iommu: Use domain_pfn_mapping() in intel_iommu_map_range() Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index dccd0a7b7a5..a490b39ca3d 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -3516,8 +3516,11 @@ static int intel_iommu_map_range(struct iommu_domain *domain, } dmar_domain->max_addr = max_addr; } - - ret = domain_page_mapping(dmar_domain, iova, hpa, size, prot); + /* Round up size to next multiple of PAGE_SIZE, if it and + the low bits of hpa would take us onto the next page */ + size = aligned_size(hpa, size) >> VTD_PAGE_SHIFT; + ret = domain_pfn_mapping(dmar_domain, iova >> VTD_PAGE_SHIFT, + hpa >> VTD_PAGE_SHIFT, size, prot); return ret; } -- cgit v1.2.3 From b536d24d212c994a7d98469ea3a8891573d45fd4 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sun, 28 Jun 2009 14:49:31 +0100 Subject: intel-iommu: Clean up intel_map_sg(), remove domain_page_mapping() Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 54 +++++++++++++++++------------------------------ 1 file changed, 19 insertions(+), 35 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index a490b39ca3d..bc49b121c66 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -1674,17 +1674,6 @@ static int domain_pfn_mapping(struct dmar_domain *domain, unsigned long iov_pfn, return 0; } -static int domain_page_mapping(struct dmar_domain *domain, dma_addr_t iova, - u64 hpa, size_t size, int prot) -{ - unsigned long first_pfn = hpa >> VTD_PAGE_SHIFT; - unsigned long last_pfn = (hpa + size - 1) >> VTD_PAGE_SHIFT; - - return domain_pfn_mapping(domain, iova >> VTD_PAGE_SHIFT, first_pfn, - last_pfn - first_pfn + 1, prot); - -} - static void iommu_detach_dev(struct intel_iommu *iommu, u8 bus, u8 devfn) { if (!iommu) @@ -2745,17 +2734,16 @@ static int intel_nontranslate_map_sg(struct device *hddev, static int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int nelems, enum dma_data_direction dir, struct dma_attrs *attrs) { - phys_addr_t addr; int i; struct pci_dev *pdev = to_pci_dev(hwdev); struct dmar_domain *domain; size_t size = 0; int prot = 0; - size_t offset = 0; + size_t offset_pfn = 0; struct iova *iova = NULL; int ret; struct scatterlist *sg; - unsigned long start_addr; + unsigned long start_vpfn; struct intel_iommu *iommu; BUG_ON(dir == DMA_NONE); @@ -2768,10 +2756,8 @@ static int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int ne iommu = domain_get_iommu(domain); - for_each_sg(sglist, sg, nelems, i) { - addr = page_to_phys(sg_page(sg)) + sg->offset; - size += aligned_size((u64)addr, sg->length); - } + for_each_sg(sglist, sg, nelems, i) + size += aligned_size(sg->offset, sg->length); iova = __intel_alloc_iova(hwdev, domain, size, pdev->dma_mask); if (!iova) { @@ -2789,36 +2775,34 @@ static int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int ne if (dir == DMA_FROM_DEVICE || dir == DMA_BIDIRECTIONAL) prot |= DMA_PTE_WRITE; - start_addr = iova->pfn_lo << PAGE_SHIFT; - offset = 0; + start_vpfn = mm_to_dma_pfn(iova->pfn_lo); + offset_pfn = 0; for_each_sg(sglist, sg, nelems, i) { - addr = page_to_phys(sg_page(sg)) + sg->offset; - size = aligned_size((u64)addr, sg->length); - ret = domain_page_mapping(domain, start_addr + offset, - ((u64)addr) & PHYSICAL_PAGE_MASK, - size, prot); + int nr_pages = aligned_size(sg->offset, sg->length) >> VTD_PAGE_SHIFT; + ret = domain_pfn_mapping(domain, start_vpfn + offset_pfn, + page_to_dma_pfn(sg_page(sg)), + nr_pages, prot); if (ret) { /* clear the page */ - dma_pte_clear_range(domain, - start_addr >> VTD_PAGE_SHIFT, - (start_addr + offset - 1) >> VTD_PAGE_SHIFT); + dma_pte_clear_range(domain, start_vpfn, + start_vpfn + offset_pfn); /* free page tables */ - dma_pte_free_pagetable(domain, start_addr >> VTD_PAGE_SHIFT, - (start_addr + offset - 1) >> VTD_PAGE_SHIFT); + dma_pte_free_pagetable(domain, start_vpfn, + start_vpfn + offset_pfn); /* free iova */ __free_iova(&domain->iovad, iova); return 0; } - sg->dma_address = start_addr + offset + - ((u64)addr & (~PAGE_MASK)); + sg->dma_address = ((dma_addr_t)(start_vpfn + offset_pfn) + << VTD_PAGE_SHIFT) + sg->offset; sg->dma_length = sg->length; - offset += size; + offset_pfn += nr_pages; } /* it's a non-present to present mapping. Only flush if caching mode */ if (cap_caching_mode(iommu->cap)) - iommu_flush_iotlb_psi(iommu, 0, start_addr, - offset >> VTD_PAGE_SHIFT); + iommu_flush_iotlb_psi(iommu, 0, start_vpfn << VTD_PAGE_SHIFT, + offset_pfn); else iommu_flush_write_buffer(iommu); -- cgit v1.2.3 From 88cb6a7424d9465faf6caaaadff5af0766c93991 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sun, 28 Jun 2009 15:03:06 +0100 Subject: intel-iommu: Change aligned_size() to aligned_nrpages() Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 21 ++++++++++++--------- 1 file changed, 12 insertions(+), 9 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index bc49b121c66..22add36fd73 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -2320,11 +2320,13 @@ error: return ret; } -static inline u64 aligned_size(u64 host_addr, size_t size) +static inline unsigned long aligned_nrpages(unsigned long host_addr, + size_t size) { - u64 addr; - addr = (host_addr & (~PAGE_MASK)) + size; - return PAGE_ALIGN(addr); + host_addr &= ~PAGE_MASK; + host_addr += size + PAGE_SIZE - 1; + + return host_addr >> VTD_PAGE_SHIFT; } struct iova * @@ -2466,7 +2468,7 @@ static dma_addr_t __intel_map_single(struct device *hwdev, phys_addr_t paddr, return 0; iommu = domain_get_iommu(domain); - size = aligned_size(paddr, size) >> VTD_PAGE_SHIFT; + size = aligned_nrpages(paddr, size); iova = __intel_alloc_iova(hwdev, domain, size << VTD_PAGE_SHIFT, pdev->dma_mask); if (!iova) @@ -2757,9 +2759,10 @@ static int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int ne iommu = domain_get_iommu(domain); for_each_sg(sglist, sg, nelems, i) - size += aligned_size(sg->offset, sg->length); + size += aligned_nrpages(sg->offset, sg->length); - iova = __intel_alloc_iova(hwdev, domain, size, pdev->dma_mask); + iova = __intel_alloc_iova(hwdev, domain, size << VTD_PAGE_SHIFT, + pdev->dma_mask); if (!iova) { sglist->dma_length = 0; return 0; @@ -2778,7 +2781,7 @@ static int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int ne start_vpfn = mm_to_dma_pfn(iova->pfn_lo); offset_pfn = 0; for_each_sg(sglist, sg, nelems, i) { - int nr_pages = aligned_size(sg->offset, sg->length) >> VTD_PAGE_SHIFT; + int nr_pages = aligned_nrpages(sg->offset, sg->length); ret = domain_pfn_mapping(domain, start_vpfn + offset_pfn, page_to_dma_pfn(sg_page(sg)), nr_pages, prot); @@ -3502,7 +3505,7 @@ static int intel_iommu_map_range(struct iommu_domain *domain, } /* Round up size to next multiple of PAGE_SIZE, if it and the low bits of hpa would take us onto the next page */ - size = aligned_size(hpa, size) >> VTD_PAGE_SHIFT; + size = aligned_nrpages(hpa, size); ret = domain_pfn_mapping(dmar_domain, iova >> VTD_PAGE_SHIFT, hpa >> VTD_PAGE_SHIFT, size, prot); return ret; -- cgit v1.2.3 From 03d6a2461ab1704c171ce21081c5022378ef7a91 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sun, 28 Jun 2009 15:33:46 +0100 Subject: intel-iommu: Make iommu_flush_iotlb_psi() take pfn as argument Most of its callers are having to shift for themselves anyway, so we might as well do it in iommu_flush_iotlb_psi(). Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 21 +++++++++------------ 1 file changed, 9 insertions(+), 12 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 22add36fd73..6afe44cb681 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -1058,11 +1058,11 @@ static void iommu_flush_dev_iotlb(struct dmar_domain *domain, } static void iommu_flush_iotlb_psi(struct intel_iommu *iommu, u16 did, - u64 addr, unsigned int pages) + unsigned long pfn, unsigned int pages) { unsigned int mask = ilog2(__roundup_pow_of_two(pages)); + uint64_t addr = (uint64_t)pfn << VTD_PAGE_SHIFT; - BUG_ON(addr & (~VTD_PAGE_MASK)); BUG_ON(pages == 0); /* @@ -2494,15 +2494,15 @@ static dma_addr_t __intel_map_single(struct device *hwdev, phys_addr_t paddr, if (ret) goto error; - start_paddr = (phys_addr_t)iova->pfn_lo << PAGE_SHIFT; - /* it's a non-present to present mapping. Only flush if caching mode */ if (cap_caching_mode(iommu->cap)) - iommu_flush_iotlb_psi(iommu, 0, start_paddr, size); + iommu_flush_iotlb_psi(iommu, 0, mm_to_dma_pfn(iova->pfn_lo), size); else iommu_flush_write_buffer(iommu); - return start_paddr + (paddr & (~PAGE_MASK)); + start_paddr = (phys_addr_t)iova->pfn_lo << PAGE_SHIFT; + start_paddr += paddr & ~PAGE_MASK; + return start_paddr; error: if (iova) @@ -2624,8 +2624,7 @@ static void intel_unmap_page(struct device *dev, dma_addr_t dev_addr, dma_pte_free_pagetable(domain, start_pfn, last_pfn); if (intel_iommu_strict) { - iommu_flush_iotlb_psi(iommu, domain->id, - start_pfn << VTD_PAGE_SHIFT, + iommu_flush_iotlb_psi(iommu, domain->id, start_pfn, last_pfn - start_pfn + 1); /* free iova */ __free_iova(&domain->iovad, iova); @@ -2711,8 +2710,7 @@ static void intel_unmap_sg(struct device *hwdev, struct scatterlist *sglist, /* free page tables */ dma_pte_free_pagetable(domain, start_pfn, last_pfn); - iommu_flush_iotlb_psi(iommu, domain->id, - start_pfn << VTD_PAGE_SHIFT, + iommu_flush_iotlb_psi(iommu, domain->id, start_pfn, (last_pfn - start_pfn + 1)); /* free iova */ @@ -2804,8 +2802,7 @@ static int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int ne /* it's a non-present to present mapping. Only flush if caching mode */ if (cap_caching_mode(iommu->cap)) - iommu_flush_iotlb_psi(iommu, 0, start_vpfn << VTD_PAGE_SHIFT, - offset_pfn); + iommu_flush_iotlb_psi(iommu, 0, start_vpfn, offset_pfn); else iommu_flush_write_buffer(iommu); -- cgit v1.2.3 From 1a4a45516d7a57de0691352d899d7008f2e090d1 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sun, 28 Jun 2009 16:00:42 +0100 Subject: intel-iommu: Remove last use of PHYSICAL_PAGE_MASK, for reserving PCI BARs This is fairly broken anyway -- it doesn't take hotplug into account. We should probably be checking page_is_ram() instead. Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 6afe44cb681..a55f5fb06b1 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -62,9 +62,6 @@ #define DMA_32BIT_PFN IOVA_PFN(DMA_BIT_MASK(32)) #define DMA_64BIT_PFN IOVA_PFN(DMA_BIT_MASK(64)) -#ifndef PHYSICAL_PAGE_MASK -#define PHYSICAL_PAGE_MASK PAGE_MASK -#endif /* VT-d pages must always be _smaller_ than MM pages. Otherwise things are never going to work. */ @@ -1307,7 +1304,6 @@ static void dmar_init_reserved_ranges(void) struct pci_dev *pdev = NULL; struct iova *iova; int i; - u64 addr, size; init_iova_domain(&reserved_iova_list, DMA_32BIT_PFN); @@ -1330,12 +1326,9 @@ static void dmar_init_reserved_ranges(void) r = &pdev->resource[i]; if (!r->flags || !(r->flags & IORESOURCE_MEM)) continue; - addr = r->start; - addr &= PHYSICAL_PAGE_MASK; - size = r->end - addr; - size = PAGE_ALIGN(size); - iova = reserve_iova(&reserved_iova_list, IOVA_PFN(addr), - IOVA_PFN(size + addr) - 1); + iova = reserve_iova(&reserved_iova_list, + IOVA_PFN(r->start), + IOVA_PFN(r->end)); if (!iova) printk(KERN_ERR "Reserve iova failed\n"); } -- cgit v1.2.3 From c5395d5c4a82159889cb650de93b591ea51d8c56 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sun, 28 Jun 2009 16:35:56 +0100 Subject: intel-iommu: Clean up iommu_domain_identity_map() Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 24 +++++++++--------------- 1 file changed, 9 insertions(+), 15 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index a55f5fb06b1..c5caf7d63a0 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -1861,31 +1861,25 @@ static int iommu_domain_identity_map(struct dmar_domain *domain, unsigned long long start, unsigned long long end) { - unsigned long size; - unsigned long long base; + unsigned long first_vpfn = start >> VTD_PAGE_SHIFT; + unsigned long last_vpfn = end >> VTD_PAGE_SHIFT; - /* The address might not be aligned */ - base = start & PAGE_MASK; - size = end - base; - size = PAGE_ALIGN(size); - if (!reserve_iova(&domain->iovad, IOVA_PFN(base), - IOVA_PFN(base + size) - 1)) { + if (!reserve_iova(&domain->iovad, dma_to_mm_pfn(first_vpfn), + dma_to_mm_pfn(last_vpfn))) { printk(KERN_ERR "IOMMU: reserve iova failed\n"); return -ENOMEM; } - pr_debug("Mapping reserved region %lx@%llx for domain %d\n", - size, base, domain->id); + pr_debug("Mapping reserved region %llx-%llx for domain %d\n", + start, end, domain->id); /* * RMRR range might have overlap with physical memory range, * clear it first */ - dma_pte_clear_range(domain, base >> VTD_PAGE_SHIFT, - (base + size - 1) >> VTD_PAGE_SHIFT); + dma_pte_clear_range(domain, first_vpfn, last_vpfn); - return domain_pfn_mapping(domain, base >> VTD_PAGE_SHIFT, - base >> VTD_PAGE_SHIFT, - size >> VTD_PAGE_SHIFT, + return domain_pfn_mapping(domain, first_vpfn, first_vpfn, + last_vpfn - first_vpfn + 1, DMA_PTE_READ|DMA_PTE_WRITE); } -- cgit v1.2.3 From 310a5ab93cb4ce29367238f682affd9ac352f4d0 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sun, 28 Jun 2009 18:52:20 +0100 Subject: intel-iommu: Performance improvement for dma_pte_clear_range() It's a bit silly to repeatedly call domain_flush_cache() for each PTE individually, as we clear it. Instead, batch them up and flush a whole range at a time. We might as well refrain from recalculating the PTE address from scratch each time round the loop too. Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 31 +++++++++++++++---------------- 1 file changed, 15 insertions(+), 16 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index c5caf7d63a0..ba7e37f7111 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -761,34 +761,33 @@ static struct dma_pte *dma_pfn_level_pte(struct dmar_domain *domain, return NULL; } -/* clear one page's page table */ -static void dma_pte_clear_one(struct dmar_domain *domain, unsigned long pfn) -{ - struct dma_pte *pte = NULL; - - /* get last level pte */ - pte = dma_pfn_level_pte(domain, pfn, 1); - - if (pte) { - dma_clear_pte(pte); - domain_flush_cache(domain, pte, sizeof(*pte)); - } -} - /* clear last level pte, a tlb flush should be followed */ static void dma_pte_clear_range(struct dmar_domain *domain, unsigned long start_pfn, unsigned long last_pfn) { int addr_width = agaw_to_width(domain->agaw) - VTD_PAGE_SHIFT; + struct dma_pte *first_pte, *pte; BUG_ON(addr_width < BITS_PER_LONG && start_pfn >> addr_width); BUG_ON(addr_width < BITS_PER_LONG && last_pfn >> addr_width); /* we don't need lock here; nobody else touches the iova range */ while (start_pfn <= last_pfn) { - dma_pte_clear_one(domain, start_pfn); - start_pfn++; + first_pte = pte = dma_pfn_level_pte(domain, start_pfn, 1); + if (!pte) { + start_pfn = align_to_level(start_pfn + 1, 2); + continue; + } + while (start_pfn <= last_pfn && + (unsigned long)pte >> VTD_PAGE_SHIFT == + (unsigned long)first_pte >> VTD_PAGE_SHIFT) { + dma_clear_pte(pte); + start_pfn++; + pte++; + } + domain_flush_cache(domain, first_pte, + (void *)pte - (void *)first_pte); } } -- cgit v1.2.3 From 6f6a00e40aa3fdd3b29c30e3ef1fc9690506bc03 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sun, 28 Jun 2009 20:38:49 +0100 Subject: intel-iommu: Performance improvement for domain_pfn_mapping() As with dma_pte_clear_range(), don't keep flushing a single PTE at a time. And also micro-optimise the setting of PTE values rather than using the helper functions to do all the masking. Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 26 +++++++++++++++++--------- 1 file changed, 17 insertions(+), 9 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index ba7e37f7111..f8074236bcc 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -1639,7 +1639,7 @@ static int domain_pfn_mapping(struct dmar_domain *domain, unsigned long iov_pfn, unsigned long phys_pfn, unsigned long nr_pages, int prot) { - struct dma_pte *pte; + struct dma_pte *first_pte = NULL, *pte = NULL; int addr_width = agaw_to_width(domain->agaw) - VTD_PAGE_SHIFT; BUG_ON(addr_width < BITS_PER_LONG && (iov_pfn + nr_pages - 1) >> addr_width); @@ -1647,19 +1647,27 @@ static int domain_pfn_mapping(struct dmar_domain *domain, unsigned long iov_pfn, if ((prot & (DMA_PTE_READ|DMA_PTE_WRITE)) == 0) return -EINVAL; + prot &= DMA_PTE_READ | DMA_PTE_WRITE | DMA_PTE_SNP; + while (nr_pages--) { - pte = pfn_to_dma_pte(domain, iov_pfn); - if (!pte) - return -ENOMEM; + if (!pte) { + first_pte = pte = pfn_to_dma_pte(domain, iov_pfn); + if (!pte) + return -ENOMEM; + } /* We don't need lock here, nobody else * touches the iova range */ BUG_ON(dma_pte_addr(pte)); - dma_set_pte_pfn(pte, phys_pfn); - dma_set_pte_prot(pte, prot); - if (prot & DMA_PTE_SNP) - dma_set_pte_snp(pte); - domain_flush_cache(domain, pte, sizeof(*pte)); + pte->val = (phys_pfn << VTD_PAGE_SHIFT) | prot; + pte++; + if (!nr_pages || + (unsigned long)pte >> VTD_PAGE_SHIFT != + (unsigned long)first_pte >> VTD_PAGE_SHIFT) { + domain_flush_cache(domain, first_pte, + (void *)pte - (void *)first_pte); + pte = NULL; + } iov_pfn++; phys_pfn++; } -- cgit v1.2.3 From 875764de6f0ddb23d270c29357d5a339232a0488 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sun, 28 Jun 2009 21:20:51 +0100 Subject: intel-iommu: Simplify __intel_alloc_iova() There's no need for the separate iommu_alloc_iova() function, and certainly not for it to be global. Remove the underscores while we're at it. Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 49 +++++++++++++++++------------------------------ 1 file changed, 18 insertions(+), 31 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index f8074236bcc..11a23201445 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -2323,43 +2323,31 @@ static inline unsigned long aligned_nrpages(unsigned long host_addr, return host_addr >> VTD_PAGE_SHIFT; } -struct iova * -iommu_alloc_iova(struct dmar_domain *domain, size_t size, u64 end) -{ - struct iova *piova; - - /* Make sure it's in range */ - end = min_t(u64, DOMAIN_MAX_ADDR(domain->gaw), end); - if (!size || (IOVA_START_ADDR + size > end)) - return NULL; - - piova = alloc_iova(&domain->iovad, - size >> PAGE_SHIFT, IOVA_PFN(end), 1); - return piova; -} - -static struct iova * -__intel_alloc_iova(struct device *dev, struct dmar_domain *domain, - size_t size, u64 dma_mask) +static struct iova *intel_alloc_iova(struct device *dev, + struct dmar_domain *domain, + unsigned long nrpages, uint64_t dma_mask) { struct pci_dev *pdev = to_pci_dev(dev); struct iova *iova = NULL; - if (dma_mask <= DMA_BIT_MASK(32) || dmar_forcedac) - iova = iommu_alloc_iova(domain, size, dma_mask); - else { + /* Restrict dma_mask to the width that the iommu can handle */ + dma_mask = min_t(uint64_t, DOMAIN_MAX_ADDR(domain->gaw), dma_mask); + + if (!dmar_forcedac && dma_mask > DMA_BIT_MASK(32)) { /* * First try to allocate an io virtual address in * DMA_BIT_MASK(32) and if that fails then try allocating * from higher range */ - iova = iommu_alloc_iova(domain, size, DMA_BIT_MASK(32)); - if (!iova) - iova = iommu_alloc_iova(domain, size, dma_mask); - } - - if (!iova) { - printk(KERN_ERR"Allocating iova for %s failed", pci_name(pdev)); + iova = alloc_iova(&domain->iovad, nrpages, + IOVA_PFN(DMA_BIT_MASK(32)), 1); + if (iova) + return iova; + } + iova = alloc_iova(&domain->iovad, nrpages, IOVA_PFN(dma_mask), 1); + if (unlikely(!iova)) { + printk(KERN_ERR "Allocating %ld-page iova for %s failed", + nrpages, pci_name(pdev)); return NULL; } @@ -2464,7 +2452,7 @@ static dma_addr_t __intel_map_single(struct device *hwdev, phys_addr_t paddr, iommu = domain_get_iommu(domain); size = aligned_nrpages(paddr, size); - iova = __intel_alloc_iova(hwdev, domain, size << VTD_PAGE_SHIFT, pdev->dma_mask); + iova = intel_alloc_iova(hwdev, domain, size, pdev->dma_mask); if (!iova) goto error; @@ -2753,8 +2741,7 @@ static int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int ne for_each_sg(sglist, sg, nelems, i) size += aligned_nrpages(sg->offset, sg->length); - iova = __intel_alloc_iova(hwdev, domain, size << VTD_PAGE_SHIFT, - pdev->dma_mask); + iova = intel_alloc_iova(hwdev, domain, size, pdev->dma_mask); if (!iova) { sglist->dma_length = 0; return 0; -- cgit v1.2.3 From e6ce3066010a21bde961d8f8cefe0b69cae78a0f Mon Sep 17 00:00:00 2001 From: Jeremy Kerr Date: Mon, 29 Jun 2009 14:31:58 +0800 Subject: fs: allow d_instantiate to be called with negative parent dentry The new fsnotify infrastructure (starting at 90586523) causes an oops in spufs, where we populate a directory with files before instantiating the directory itself. The new changes seem to have introduced an assumption that a dentry's parent will be positive when instantiating. This change makes it once again possible to d_instantiate a dentry with a negative parent, and brings __fsnotify_d_instantiate() into line with inotify_d_instantiate(), which already has this NULL check. Signed-off-by: Jeremy Kerr Signed-off-by: Eric Paris --- include/linux/fsnotify_backend.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h index 44848aa830d..6c3de999fb3 100644 --- a/include/linux/fsnotify_backend.h +++ b/include/linux/fsnotify_backend.h @@ -280,7 +280,7 @@ static inline void __fsnotify_update_dcache_flags(struct dentry *dentry) assert_spin_locked(&dentry->d_lock); parent = dentry->d_parent; - if (fsnotify_inode_watches_children(parent->d_inode)) + if (parent->d_inode && fsnotify_inode_watches_children(parent->d_inode)) dentry->d_flags |= DCACHE_FSNOTIFY_PARENT_WATCHED; else dentry->d_flags &= ~DCACHE_FSNOTIFY_PARENT_WATCHED; -- cgit v1.2.3 From 9ea5ca75a2aebb7172094a7d77acf6ff7600cc56 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Mon, 29 Jun 2009 18:03:34 +0200 Subject: sound: OSS: mpu401, fix deadlock mpu401_chk_version is called with a spin lock already held. Don't take it again. Signed-off-by: Jiri Slaby Signed-off-by: Takashi Iwai --- sound/oss/mpu401.c | 16 +++------------- 1 file changed, 3 insertions(+), 13 deletions(-) diff --git a/sound/oss/mpu401.c b/sound/oss/mpu401.c index 6c0a770ed05..1b2316f35b1 100644 --- a/sound/oss/mpu401.c +++ b/sound/oss/mpu401.c @@ -926,31 +926,21 @@ static struct midi_operations mpu401_midi_operations[MAX_MIDI_DEV]; static void mpu401_chk_version(int n, struct mpu_config *devc) { int tmp; - unsigned long flags; devc->version = devc->revision = 0; - spin_lock_irqsave(&devc->lock,flags); - if ((tmp = mpu_cmd(n, 0xAC, 0)) < 0) - { - spin_unlock_irqrestore(&devc->lock,flags); + tmp = mpu_cmd(n, 0xAC, 0); + if (tmp < 0) return; - } if ((tmp & 0xf0) > 0x20) /* Why it's larger than 2.x ??? */ - { - spin_unlock_irqrestore(&devc->lock,flags); return; - } devc->version = tmp; - if ((tmp = mpu_cmd(n, 0xAD, 0)) < 0) - { + if ((tmp = mpu_cmd(n, 0xAD, 0)) < 0) { devc->version = 0; - spin_unlock_irqrestore(&devc->lock,flags); return; } devc->revision = tmp; - spin_unlock_irqrestore(&devc->lock,flags); } int attach_mpu401(struct address_info *hw_config, struct module *owner) -- cgit v1.2.3 From 17bb9e0d906b625f86e9d31740bb1c35bc0f63d7 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Mon, 29 Jun 2009 17:13:56 +0100 Subject: kmemleak: Do not report new leaked objects if the scanning was stopped If the scanning was stopped with a signal, it is possible that some objects are left with a white colour (potential leaks) and reported. Add a check to avoid reporting such objects. Signed-off-by: Catalin Marinas --- mm/kmemleak.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/mm/kmemleak.c b/mm/kmemleak.c index c37e8e50e4d..e094c4dbdf5 100644 --- a/mm/kmemleak.c +++ b/mm/kmemleak.c @@ -1029,6 +1029,12 @@ static void kmemleak_scan(void) } WARN_ON(!list_empty(&gray_list)); + /* + * If scanning was stopped do not report any new unreferenced objects. + */ + if (scan_should_stop()) + return; + /* * Scanning result reporting. */ @@ -1184,11 +1190,10 @@ static int kmemleak_seq_show(struct seq_file *seq, void *v) unsigned long flags; spin_lock_irqsave(&object->lock, flags); - if (!unreferenced_object(object)) - goto out; - print_unreferenced(seq, object); - reported_leaks++; -out: + if ((object->flags & OBJECT_REPORTED) && unreferenced_object(object)) { + print_unreferenced(seq, object); + reported_leaks++; + } spin_unlock_irqrestore(&object->lock, flags); return 0; } -- cgit v1.2.3 From b6e687221eb840bacd4d4a991e5f8e7ed3ae910a Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Mon, 29 Jun 2009 17:13:57 +0100 Subject: kmemleak: Do not warn if an unknown object is freed vmap'ed memory blocks are not tracked by kmemleak (yet) but they may be released with vfree() which is tracked. The corresponding kmemleak warning is only enabled in debug mode. Future patch will add support for ioremap and vmap. Signed-off-by: Catalin Marinas --- mm/kmemleak.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/mm/kmemleak.c b/mm/kmemleak.c index e094c4dbdf5..eeece2deace 100644 --- a/mm/kmemleak.c +++ b/mm/kmemleak.c @@ -531,8 +531,10 @@ static void delete_object(unsigned long ptr) write_lock_irqsave(&kmemleak_lock, flags); object = lookup_object(ptr, 0); if (!object) { +#ifdef DEBUG kmemleak_warn("Freeing unknown object at 0x%08lx\n", ptr); +#endif write_unlock_irqrestore(&kmemleak_lock, flags); return; } -- cgit v1.2.3 From 12de38b186c2af97bf0b4a1f907f766df46b1def Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Mon, 29 Jun 2009 17:13:55 +0100 Subject: kmemleak: Inform kmemleak about pid_hash Kmemleak does not track alloc_bootmem calls but the pid_hash allocated in pidhash_init() would need to be scanned as it contains pointers to struct pid objects. Signed-off-by: Catalin Marinas --- kernel/pid.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/kernel/pid.c b/kernel/pid.c index 31310b5d3f5..5fa1db48d8b 100644 --- a/kernel/pid.c +++ b/kernel/pid.c @@ -36,6 +36,7 @@ #include #include #include +#include #define pid_hashfn(nr, ns) \ hash_long((unsigned long)nr + (unsigned long)ns, pidhash_shift) @@ -512,6 +513,12 @@ void __init pidhash_init(void) pid_hash = alloc_bootmem(pidhash_size * sizeof(*(pid_hash))); if (!pid_hash) panic("Could not alloc pidhash!\n"); + /* + * pid_hash contains references to allocated struct pid objects and it + * must be scanned by kmemleak to avoid false positives. + */ + kmemleak_alloc(pid_hash, pidhash_size * sizeof(*(pid_hash)), 0, + GFP_KERNEL); for (i = 0; i < pidhash_size; i++) INIT_HLIST_HEAD(&pid_hash[i]); } -- cgit v1.2.3 From aef29bc2603014cb28dfe39bab8d888546fe18e7 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Mon, 29 Jun 2009 15:21:47 +0100 Subject: tty: Fix the leak in tty_ldisc_release Currently we reinit the ldisc on final tty close which is what the old code did to ensure that if the device retained its termios settings then it had the right ldisc. tty_ldisc_reinit does that but also leaves us with the reset ldisc reference which is then leaked. At this point we know the port will be recycled so we can kill the ldisc off completely rather than try and add another ldisc free up when the kref count hits zero. At this point it is safe to keep the ldisc closed as tty_ldisc waiting methods are only used from the user side, and as the final close we are the last such reference. Interrupt/driver side methods will always use the non wait version and get back a NULL. Found with kmemleak and investigated/identified by Catalin Marinas. Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds --- drivers/char/tty_ldisc.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/drivers/char/tty_ldisc.c b/drivers/char/tty_ldisc.c index a19e935847b..913aa8d3f1c 100644 --- a/drivers/char/tty_ldisc.c +++ b/drivers/char/tty_ldisc.c @@ -867,15 +867,22 @@ void tty_ldisc_release(struct tty_struct *tty, struct tty_struct *o_tty) tty_ldisc_wait_idle(tty); /* - * Shutdown the current line discipline, and reset it to N_TTY. - * - * FIXME: this MUST get fixed for the new reflocking + * Now kill off the ldisc */ + tty_ldisc_close(tty, tty->ldisc); + tty_ldisc_put(tty->ldisc); + /* Force an oops if we mess this up */ + tty->ldisc = NULL; + + /* Ensure the next open requests the N_TTY ldisc */ + tty_set_termios_ldisc(tty, N_TTY); - tty_ldisc_reinit(tty); /* This will need doing differently if we need to lock */ if (o_tty) tty_ldisc_release(o_tty, NULL); + + /* And the memory resources remaining (buffers, termios) will be + disposed of when the kref hits zero */ } /** -- cgit v1.2.3 From 44b3615b8cb3b016a49eb7ef4236e77a77793cec Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 29 Jun 2009 10:07:54 +0200 Subject: eeepc-laptop: Fix build failure with HOTPLUG_PCI && !SYSFS FYI, there's a post-rc1 build regression with certain configs: drivers/built-in.o: In function `pci_hp_deregister': (.text+0xb166): undefined reference to `pci_hp_remove_module_link' drivers/built-in.o: In function `pci_hp_deregister': (.text+0xb19f): undefined reference to `pci_destroy_slot' drivers/built-in.o: In function `__pci_hp_register': (.text+0xb583): undefined reference to `pci_create_slot' drivers/built-in.o: In function `__pci_hp_register': (.text+0xb5b1): undefined reference to `pci_hp_create_module_link' make: *** [.tmp_vmlinux1] Error 1 Caused by: | 2b121bc262fa03c94e653b2d44356c2f86c1bcdc is first bad commit | commit 2b121bc262fa03c94e653b2d44356c2f86c1bcdc | Date: Thu Jun 25 13:25:36 2009 +0200 | | eeepc-laptop: Register as a pci-hotplug device which changed the driver to use the PCI hotplug infrastructure, but didn't do a good job on the Kconfig rules. Signed-off-by: Ingo Molnar Acked-by: Randy Dunlap Acked-by: Len Brown Signed-off-by: Linus Torvalds --- drivers/platform/x86/Kconfig | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index fee6a4022bc..46dad12f952 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -355,10 +355,9 @@ config EEEPC_LAPTOP depends on INPUT depends on EXPERIMENTAL depends on RFKILL || RFKILL = n + depends on HOTPLUG_PCI select BACKLIGHT_CLASS_DEVICE select HWMON - select HOTPLUG - select HOTPLUG_PCI if PCI ---help--- This driver supports the Fn-Fx keys on Eee PC laptops. -- cgit v1.2.3 From 0d07348931daef854aca8c834a89f1a99ba4ff2b Mon Sep 17 00:00:00 2001 From: Hidetoshi Seto Date: Wed, 24 Jun 2009 12:08:27 +0900 Subject: PCI MSI: Return if alloc_msi_entry for MSI-X failed In current code it continues setup even if alloc_msi_entry() for MSI-X is failed due to lack of memory. It means arch_setup_msi_irqs() might be called with msi_desc entries less than its argument nvec. At least x86's arch_setup_msi_irqs() uses list_for_each_entry() for dev->msi_list that suspected to have entries same numbers as nvec, and it doesn't check the number of allocated vectors and passed arg nvec. Therefore it will result in success of pci_enable_msix(), with less vectors allocated than requested. This patch fixes the error route to return -ENOMEM, instead of continuing the setup (proposed by Matthew Wilcox). Note that there is no iounmap in msi_free_irqs() if no msi_disc is allocated. Reviewed-by: Matthew Wilcox Signed-off-by: Hidetoshi Seto Signed-off-by: Jesse Barnes --- drivers/pci/msi.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index d9f06fbfa0b..628c14150d4 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -439,8 +439,14 @@ static int msix_capability_init(struct pci_dev *dev, for (i = 0; i < nvec; i++) { entry = alloc_msi_entry(dev); - if (!entry) - break; + if (!entry) { + if (!i) + iounmap(base); + else + msi_free_irqs(dev); + /* No enough memory. Don't try again */ + return -ENOMEM; + } j = entries[i].entry; entry->msi_attrib.is_msix = 1; -- cgit v1.2.3 From 50e5628a4ac465a52f0d4ca6567343be029731a0 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Sun, 28 Jun 2009 09:26:40 -0700 Subject: PCI ECRC: Remove unnecessary semicolons Acked-by: Andrew Patterson Signed-off-by: Joe Perches Signed-off-by: Jesse Barnes --- drivers/pci/pcie/aer/ecrc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/pcie/aer/ecrc.c b/drivers/pci/pcie/aer/ecrc.c index ece97df4df6..a928d8ab6bd 100644 --- a/drivers/pci/pcie/aer/ecrc.c +++ b/drivers/pci/pcie/aer/ecrc.c @@ -106,7 +106,7 @@ void pcie_set_ecrc_checking(struct pci_dev *dev) disable_ecrc_checking(dev); break; case ECRC_POLICY_ON: - enable_ecrc_checking(dev);; + enable_ecrc_checking(dev); break; default: return; -- cgit v1.2.3 From 977badb2f385db14d8ba3fcf02fbd7ead8e63d0f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Fernando=20Luis=20V=C3=A1zquez=20Cao?= Date: Fri, 26 Jun 2009 11:27:41 +0900 Subject: PCI: remove pci_dac_dma_... APIs on mn10300 It seems that mn10300 made it upstream after Jan Beulich's pci_dac_dma_* cleanup work and still defines pci_dac_dma_supported(). This API is not required by the PCI subsystem anymore, so remove it. Acked-by: David Howells Signed-off-by: Fernando Luis Vazquez Cao Signed-off-by: Jesse Barnes --- arch/mn10300/include/asm/pci.h | 4 ---- 1 file changed, 4 deletions(-) diff --git a/arch/mn10300/include/asm/pci.h b/arch/mn10300/include/asm/pci.h index e58b9a46e1b..35d2ed6396f 100644 --- a/arch/mn10300/include/asm/pci.h +++ b/arch/mn10300/include/asm/pci.h @@ -70,10 +70,6 @@ struct pci_dev; */ #define PCI_DMA_BUS_IS_PHYS (1) - -/* This is always fine. */ -#define pci_dac_dma_supported(pci_dev, mask) (0) - /* Return the index of the PCI controller for device. */ static inline int pci_controller_num(struct pci_dev *dev) { -- cgit v1.2.3 From 654b75e044119bf8e7d773bce41ea039281bbfbe Mon Sep 17 00:00:00 2001 From: Yu Zhao Date: Fri, 26 Jun 2009 14:04:46 +0800 Subject: PCI: check if bus has a proper bridge device before triggering SBR For devices attached to the root bus, we can't trigger Secondary Bus Reset because there is no bridge device associated with the bus. So need to check bus->self again NULL first before using it. Reviewed-by: Kenji Kaneshige Signed-off-by: Yu Zhao Signed-off-by: Jesse Barnes --- drivers/pci/pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 6c93af5ced1..d5d6f5667d8 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -2171,7 +2171,7 @@ static int pci_parent_bus_reset(struct pci_dev *dev, int probe) u16 ctrl; struct pci_dev *pdev; - if (dev->subordinate) + if (pci_is_root_bus(dev->bus) || dev->subordinate || !dev->bus->self) return -ENOTTY; list_for_each_entry(pdev, &dev->bus->devices, bus_list) -- cgit v1.2.3 From 503998ca4a295f7da233689850ba4b9d13cf41e7 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 24 Jun 2009 09:18:14 -0700 Subject: PCI: fix kernel-doc warnings Add documentation for missing parameters in PCI hotplug code. Signed-off-by: Randy Dunlap Signed-off-by: Jesse Barnes --- drivers/pci/hotplug/pci_hotplug_core.c | 2 ++ drivers/pci/slot.c | 4 ++-- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c index 844580489d4..5c5043f239c 100644 --- a/drivers/pci/hotplug/pci_hotplug_core.c +++ b/drivers/pci/hotplug/pci_hotplug_core.c @@ -555,6 +555,8 @@ static struct hotplug_slot *get_slot_from_name (const char *name) * @slot: pointer to the &struct hotplug_slot to register * @devnr: device number * @name: name registered with kobject core + * @owner: caller module owner + * @mod_name: caller module name * * Registers a hotplug slot with the pci hotplug subsystem, which will allow * userspace interaction to the slot. diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c index eddb0748b0e..8c02b6c53bd 100644 --- a/drivers/pci/slot.c +++ b/drivers/pci/slot.c @@ -311,7 +311,7 @@ EXPORT_SYMBOL_GPL(pci_destroy_slot); #include /** * pci_hp_create_link - create symbolic link to the hotplug driver module. - * @slot: struct pci_slot + * @pci_slot: struct pci_slot * * Helper function for pci_hotplug_core.c to create symbolic link to * the hotplug driver module. @@ -334,7 +334,7 @@ EXPORT_SYMBOL_GPL(pci_hp_create_module_link); /** * pci_hp_remove_link - remove symbolic link to the hotplug driver module. - * @slot: struct pci_slot + * @pci_slot: struct pci_slot * * Helper function for pci_hotplug_core.c to remove symbolic link to * the hotplug driver module. -- cgit v1.2.3 From 7a661c6f1082693a7e9627e9ad2d1546a9337fdc Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 24 Jun 2009 16:02:27 +0100 Subject: PCI: More PATA quirks for not entering D3 The ALi loses some state if it goes into D3. Unfortunately even with the chipset documents I can't figure out how to restore some bits of it. The VIA one saves/restores apparently fine but the ACPI _GTM methods break on some platforms if we do this and this causes cable misdetections. These are both effectively regressions as historically nothing matched the devices and then decided not to bind to them. Nowdays something is binding to all sorts of devices and a result they get dumped into D3. Signed-off-by: Alan Cox Acked-by: Jeff Garzik Signed-off-by: Jesse Barnes --- drivers/pci/quirks.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 56552d74abe..06b96562396 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1058,6 +1058,11 @@ static void __devinit quirk_no_ata_d3(struct pci_dev *pdev) } DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_ANY_ID, quirk_no_ata_d3); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATI, PCI_ANY_ID, quirk_no_ata_d3); +/* ALi loses some register settings that we cannot then restore */ +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, quirk_no_ata_d3); +/* VIA comes back fine but we need to keep it alive or ACPI GTM failures + occur when mode detecting */ +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_no_ata_d3); /* This was originally an Alpha specific thing, but it really fits here. * The i82375 PCI/EISA bridge appears as non-classified. Fix that. -- cgit v1.2.3 From 2fc90f6133a87da8177636866557d4cc5f56e661 Mon Sep 17 00:00:00 2001 From: Alexey Zaytsev Date: Wed, 24 Jun 2009 16:22:30 +0400 Subject: PCI: make pci_name() take const argument Since this function should never modify it (saves warnings when called with const args too). Signed-off-by: Alexey Zaytsev Signed-off-by: Jesse Barnes --- include/linux/pci.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/pci.h b/include/linux/pci.h index d304ddf412d..115fb7ba508 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1145,7 +1145,7 @@ static inline void pci_set_drvdata(struct pci_dev *pdev, void *data) /* If you want to know what to call your pci_dev, ask this function. * Again, it's a wrapper around the generic device. */ -static inline const char *pci_name(struct pci_dev *pdev) +static inline const char *pci_name(const struct pci_dev *pdev) { return dev_name(&pdev->dev); } -- cgit v1.2.3 From 2c21fd4b333e4c780a46edcd6d1e85bfc6cdf371 Mon Sep 17 00:00:00 2001 From: Hidetoshi Seto Date: Tue, 23 Jun 2009 17:40:04 +0900 Subject: PCI MSI: shorten PCI_MSIX_ENTRY_* symbol names These names are too long! Drop _OFFSET to save some bytes/lines. Reviewed-by: Matthew Wilcox Signed-off-by: Hidetoshi Seto Signed-off-by: Jesse Barnes --- drivers/pci/msi.c | 18 ++++++++---------- drivers/pci/msi.h | 10 +++++----- 2 files changed, 13 insertions(+), 15 deletions(-) diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 628c14150d4..a088fc6f583 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -151,7 +151,7 @@ static void msix_mask_irq(struct msi_desc *desc, u32 flag) { u32 mask_bits = desc->masked; unsigned offset = desc->msi_attrib.entry_nr * PCI_MSIX_ENTRY_SIZE + - PCI_MSIX_ENTRY_VECTOR_CTRL_OFFSET; + PCI_MSIX_ENTRY_VECTOR_CTRL; mask_bits &= ~1; mask_bits |= flag; writel(mask_bits, desc->mask_base + offset); @@ -188,9 +188,9 @@ void read_msi_msg_desc(struct irq_desc *desc, struct msi_msg *msg) void __iomem *base = entry->mask_base + entry->msi_attrib.entry_nr * PCI_MSIX_ENTRY_SIZE; - msg->address_lo = readl(base + PCI_MSIX_ENTRY_LOWER_ADDR_OFFSET); - msg->address_hi = readl(base + PCI_MSIX_ENTRY_UPPER_ADDR_OFFSET); - msg->data = readl(base + PCI_MSIX_ENTRY_DATA_OFFSET); + msg->address_lo = readl(base + PCI_MSIX_ENTRY_LOWER_ADDR); + msg->address_hi = readl(base + PCI_MSIX_ENTRY_UPPER_ADDR); + msg->data = readl(base + PCI_MSIX_ENTRY_DATA); } else { struct pci_dev *dev = entry->dev; int pos = entry->msi_attrib.pos; @@ -225,11 +225,9 @@ void write_msi_msg_desc(struct irq_desc *desc, struct msi_msg *msg) base = entry->mask_base + entry->msi_attrib.entry_nr * PCI_MSIX_ENTRY_SIZE; - writel(msg->address_lo, - base + PCI_MSIX_ENTRY_LOWER_ADDR_OFFSET); - writel(msg->address_hi, - base + PCI_MSIX_ENTRY_UPPER_ADDR_OFFSET); - writel(msg->data, base + PCI_MSIX_ENTRY_DATA_OFFSET); + writel(msg->address_lo, base + PCI_MSIX_ENTRY_LOWER_ADDR); + writel(msg->address_hi, base + PCI_MSIX_ENTRY_UPPER_ADDR); + writel(msg->data, base + PCI_MSIX_ENTRY_DATA); } else { struct pci_dev *dev = entry->dev; int pos = entry->msi_attrib.pos; @@ -493,7 +491,7 @@ static int msix_capability_init(struct pci_dev *dev, set_irq_msi(entry->irq, entry); j = entries[i].entry; entry->masked = readl(base + j * PCI_MSIX_ENTRY_SIZE + - PCI_MSIX_ENTRY_VECTOR_CTRL_OFFSET); + PCI_MSIX_ENTRY_VECTOR_CTRL); msix_mask_irq(entry, 1); i++; } diff --git a/drivers/pci/msi.h b/drivers/pci/msi.h index a0662842550..de27c1cb5a2 100644 --- a/drivers/pci/msi.h +++ b/drivers/pci/msi.h @@ -6,11 +6,11 @@ #ifndef MSI_H #define MSI_H -#define PCI_MSIX_ENTRY_SIZE 16 -#define PCI_MSIX_ENTRY_LOWER_ADDR_OFFSET 0 -#define PCI_MSIX_ENTRY_UPPER_ADDR_OFFSET 4 -#define PCI_MSIX_ENTRY_DATA_OFFSET 8 -#define PCI_MSIX_ENTRY_VECTOR_CTRL_OFFSET 12 +#define PCI_MSIX_ENTRY_SIZE 16 +#define PCI_MSIX_ENTRY_LOWER_ADDR 0 +#define PCI_MSIX_ENTRY_UPPER_ADDR 4 +#define PCI_MSIX_ENTRY_DATA 8 +#define PCI_MSIX_ENTRY_VECTOR_CTRL 12 #define msi_control_reg(base) (base + PCI_MSI_FLAGS) #define msi_lower_address_reg(base) (base + PCI_MSI_ADDRESS_LO) -- cgit v1.2.3 From 7ba1930db02fc3118165338ef4e562869f575583 Mon Sep 17 00:00:00 2001 From: Hidetoshi Seto Date: Tue, 23 Jun 2009 17:39:27 +0900 Subject: PCI MSI: Unmask MSI if setup failed The initial state of mask register of MSI is unmasked. We set it masked before calling arch_setup_msi_irqs(). If arch_setup_msi_irq() fails, it is better to restore the state of the mask register. Reviewed-by: Matthew Wilcox Signed-off-by: Hidetoshi Seto Signed-off-by: Jesse Barnes --- drivers/pci/msi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index a088fc6f583..9ab4fe8f20a 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -383,6 +383,7 @@ static int msi_capability_init(struct pci_dev *dev, int nvec) /* Configure MSI capability structure */ ret = arch_setup_msi_irqs(dev, nvec, PCI_CAP_ID_MSI); if (ret) { + msi_mask_irq(entry, mask, ~mask); msi_free_irqs(dev); return ret; } -- cgit v1.2.3 From 12abb8ba8444f7c9b355bbdd44a6d0839f7a41b6 Mon Sep 17 00:00:00 2001 From: Hidetoshi Seto Date: Wed, 24 Jun 2009 12:08:09 +0900 Subject: PCI MSI: Fix restoration of MSI/MSI-X mask states in suspend/resume There are 2 problems on mask states in suspend/resume. [1]: It is better to restore the mask states of MSI/MSI-X to initial states (MSI is unmasked, MSI-X is masked) when we release the device. The pci_msi_shutdown() does the restoration of mask states for MSI, while the msi_free_irqs() does it for MSI-X. In other words, in the "disable" path both of MSI and MSI-X are handled, but in the "shutdown" path only MSI is handled. MSI: pci_disable_msi() => pci_msi_shutdown() [ mask states for MSI restored ] => msi_set_enable(dev, pos, 0); => msi_free_irqs() MSI-X: pci_disable_msix() => pci_msix_shutdown() => msix_set_enable(dev, 0); => msix_free_all_irqs => msi_free_irqs() [ mask states for MSI-X restored ] This patch moves the masking for MSI-X from msi_free_irqs() to pci_msix_shutdown(). This change has some positive side effects: - It prevents OS from touching mask states before reading preserved bits in the register, which can be happen if msi_free_irqs() is called from error path in msix_capability_init(). - It also prevents touching the register after turning off MSI-X in "disable" path, which can be a problem on some devices. [2]: We have cache of the mask state in msi_desc, which is automatically updated when msi/msix_mask_irq() is called. This cached states are used for the resume. But since what need to be restored in the resume is the states before the shutdown on the suspend, calling msi/msix_mask_irq() from pci_msi/msix_shutdown() is not appropriate. This patch introduces __msi/msix_mask_irq() that do mask as same as msi/msix_mask_irq() but does not update cached state, for use in pci_msi/msix_shutdown(). [updated: get rid of msi/msix_mask_irq_nocache() (proposed by Matthew Wilcox)] Reviewed-by: Matthew Wilcox Signed-off-by: Hidetoshi Seto Signed-off-by: Jesse Barnes --- drivers/pci/msi.c | 35 ++++++++++++++++++++++++++++------- 1 file changed, 28 insertions(+), 7 deletions(-) diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 9ab4fe8f20a..d986afb7032 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -127,17 +127,23 @@ static inline __attribute_const__ u32 msi_enabled_mask(u16 control) * reliably as devices without an INTx disable bit will then generate a * level IRQ which will never be cleared. */ -static void msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag) +static u32 __msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag) { u32 mask_bits = desc->masked; if (!desc->msi_attrib.maskbit) - return; + return 0; mask_bits &= ~mask; mask_bits |= flag; pci_write_config_dword(desc->dev, desc->mask_pos, mask_bits); - desc->masked = mask_bits; + + return mask_bits; +} + +static void msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag) +{ + desc->masked = __msi_mask_irq(desc, mask, flag); } /* @@ -147,7 +153,7 @@ static void msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag) * file. This saves a few milliseconds when initialising devices with lots * of MSI-X interrupts. */ -static void msix_mask_irq(struct msi_desc *desc, u32 flag) +static u32 __msix_mask_irq(struct msi_desc *desc, u32 flag) { u32 mask_bits = desc->masked; unsigned offset = desc->msi_attrib.entry_nr * PCI_MSIX_ENTRY_SIZE + @@ -155,7 +161,13 @@ static void msix_mask_irq(struct msi_desc *desc, u32 flag) mask_bits &= ~1; mask_bits |= flag; writel(mask_bits, desc->mask_base + offset); - desc->masked = mask_bits; + + return mask_bits; +} + +static void msix_mask_irq(struct msi_desc *desc, u32 flag) +{ + desc->masked = __msix_mask_irq(desc, flag); } static void msi_set_mask_bit(unsigned irq, u32 flag) @@ -616,9 +628,11 @@ void pci_msi_shutdown(struct pci_dev *dev) pci_intx_for_msi(dev, 1); dev->msi_enabled = 0; + /* Return the device with MSI unmasked as initial states */ pci_read_config_word(dev, pos + PCI_MSI_FLAGS, &ctrl); mask = msi_capable_mask(ctrl); - msi_mask_irq(desc, mask, ~mask); + /* Keep cached state to be restored */ + __msi_mask_irq(desc, mask, ~mask); /* Restore dev->irq to its default pin-assertion irq */ dev->irq = desc->msi_attrib.default_irq; @@ -658,7 +672,6 @@ static int msi_free_irqs(struct pci_dev* dev) list_for_each_entry_safe(entry, tmp, &dev->msi_list, list) { if (entry->msi_attrib.is_msix) { - msix_mask_irq(entry, 1); if (list_is_last(&entry->list, &dev->msi_list)) iounmap(entry->mask_base); } @@ -746,9 +759,17 @@ static void msix_free_all_irqs(struct pci_dev *dev) void pci_msix_shutdown(struct pci_dev* dev) { + struct msi_desc *entry; + if (!pci_msi_enable || !dev || !dev->msix_enabled) return; + /* Return the device with MSI-X masked as initial states */ + list_for_each_entry(entry, &dev->msi_list, list) { + /* Keep cached states to be restored */ + __msix_mask_irq(entry, 1); + } + msix_set_enable(dev, 0); pci_intx_for_msi(dev, 1); dev->msix_enabled = 0; -- cgit v1.2.3 From 210ad39fb7ef0bc0494483f517f42524f16bb2a7 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 29 Jun 2009 21:50:54 +0200 Subject: perf stat: Use percentages for scaling output Peter expressed a strong preference for percentage based display of scaled values - so revert to that from the recently introduced multiplication-factor unit. Reported-by: Peter Zijlstra Cc: Jaswinder Singh Rajput Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo LKML-Reference: Signed-off-by: Ingo Molnar --- tools/perf/builtin-stat.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 3e5ea4e2e5f..c5a290727a9 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -307,7 +307,8 @@ static void print_counter(int counter) abs_printout(counter, count, noise); if (scaled) - fprintf(stderr, " (%7.2fx scaled)", (double)count[1]/count[2]); + fprintf(stderr, " (scaled from %.2f%%)", + (double) count[2] / count[1] * 100); fprintf(stderr, "\n"); } -- cgit v1.2.3 From 051ae7f7344f453616b6b10332d4d8e1d40ed823 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Mon, 29 Jun 2009 21:13:21 +1000 Subject: perf_counter tools: Reduce perf stat measurement overhead/skew Vince Weaver reported a 'perf stat' measurement overhead in the count of retired instructions, which can amount to a +6000 instructions inflated count in the reported count. At present, perf stat creates its counters on the perf process. Thus the counters count the fork and various other activity in both the parent and child, such as the resolver overhead for resolving PLT entries for any libc functions that haven't been called before, such as execvp. This reduces the overhead by creating the counters on the child process after the fork, using a couple of pipes to synchronize so that the child process waits until the parent has created the counters before doing the exec. To eliminate the PLT resolution overhead on calling execvp, this does a dummy execvp first which will always fail. With this, the overhead of executing a program goes down from over 4800 instructions to about 90 instructions on powerpc (32-bit). This was measured with a statically-linked program written in assembler which only does the 3 instructions needed to call _exit(0). Before: $ perf stat -e 0:1:u ./three Performance counter stats for './three': 4858 instructions 0.001274523 seconds time elapsed After: $ perf stat -e 0:1:u ./three Performance counter stats for './three': 92 instructions 0.000468153 seconds time elapsed Reported-by: Vince Weaver Signed-off-by: Paul Mackerras Cc: Peter Zijlstra LKML-Reference: <19016.41425.814043.870352@cargo.ozlabs.ibm.com> Signed-off-by: Ingo Molnar --- tools/perf/builtin-stat.c | 64 ++++++++++++++++++++++++++++++++++++----------- 1 file changed, 50 insertions(+), 14 deletions(-) diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index c5a290727a9..201ef2367dc 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -99,7 +99,7 @@ static u64 runtime_cycles_noise; #define ERR_PERF_OPEN \ "Error: counter %d, sys_perf_counter_open() syscall returned with %d (%s)\n" -static void create_perf_stat_counter(int counter) +static void create_perf_stat_counter(int counter, int pid) { struct perf_counter_attr *attr = attrs + counter; @@ -119,7 +119,7 @@ static void create_perf_stat_counter(int counter) attr->inherit = inherit; attr->disabled = 1; - fd[0][counter] = sys_perf_counter_open(attr, 0, -1, -1, 0); + fd[0][counter] = sys_perf_counter_open(attr, pid, -1, -1, 0); if (fd[0][counter] < 0 && verbose) fprintf(stderr, ERR_PERF_OPEN, counter, fd[0][counter], strerror(errno)); @@ -205,12 +205,58 @@ static int run_perf_stat(int argc, const char **argv) int status = 0; int counter; int pid; + int child_ready_pipe[2], go_pipe[2]; + char buf; if (!system_wide) nr_cpus = 1; + if (pipe(child_ready_pipe) < 0 || pipe(go_pipe) < 0) { + perror("failed to create pipes"); + exit(1); + } + + if ((pid = fork()) < 0) + perror("failed to fork"); + + if (!pid) { + close(child_ready_pipe[0]); + close(go_pipe[1]); + fcntl(go_pipe[0], F_SETFD, FD_CLOEXEC); + + /* + * Do a dummy execvp to get the PLT entry resolved, + * so we avoid the resolver overhead on the real + * execvp call. + */ + execvp("", (char **)argv); + + /* + * Tell the parent we're ready to go + */ + close(child_ready_pipe[1]); + + /* + * Wait until the parent tells us to go. + */ + read(go_pipe[0], &buf, 1); + + execvp(argv[0], (char **)argv); + + perror(argv[0]); + exit(-1); + } + + /* + * Wait for the child to be ready to exec. + */ + close(child_ready_pipe[1]); + close(go_pipe[0]); + read(child_ready_pipe[0], &buf, 1); + close(child_ready_pipe[0]); + for (counter = 0; counter < nr_counters; counter++) - create_perf_stat_counter(counter); + create_perf_stat_counter(counter, pid); /* * Enable counters and exec the command: @@ -218,19 +264,9 @@ static int run_perf_stat(int argc, const char **argv) t0 = rdclock(); prctl(PR_TASK_PERF_COUNTERS_ENABLE); - if ((pid = fork()) < 0) - perror("failed to fork"); - - if (!pid) { - if (execvp(argv[0], (char **)argv)) { - perror(argv[0]); - exit(-1); - } - } - + close(go_pipe[1]); wait(&status); - prctl(PR_TASK_PERF_COUNTERS_DISABLE); t1 = rdclock(); walltime_nsecs[run_idx] = t1 - t0; -- cgit v1.2.3 From 2bf427b25b79eb7cea27963a66c3d4684cae0e0c Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Mon, 29 Jun 2009 19:20:42 -0700 Subject: ide: fix resume for CONFIG_BLK_DEV_IDEACPI=y commit 2f0d0fd2a605666d38e290c5c0d2907484352dc4 ("ide-acpi: cleanup do_drive_get_GTF()") didn't account for the lack of hwif->acpidata check in generic_ide_suspend() [ indirect user of do_drive_get_GTF() through ide_acpi_exec_tfs() ] resulting in broken resume when ACPI support is enabled but ACPI data is unavailable. Fix it by adding ide_port_acpi() helper for checking if port needs ACPI handling and cleaning generic_ide_{suspend,resume}() to use it instead of hiding hwif->acpidata and ide_noacpi checks in IDE ACPI helpers (this should help in preventing similar bugs in the future). While at it: - kill superfluous debugging printks in ide_acpi_{get,push}_timing() Reported-and-tested-by: Etienne Basset Also-reported-and-tested-by: Jeff Chua Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: David S. Miller --- drivers/ide/ide-acpi.c | 37 +++++++------------------------------ drivers/ide/ide-pm.c | 30 ++++++++++++++++++------------ include/linux/ide.h | 2 ++ 3 files changed, 27 insertions(+), 42 deletions(-) diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c index 77f79d26b26..c509c991646 100644 --- a/drivers/ide/ide-acpi.c +++ b/drivers/ide/ide-acpi.c @@ -92,6 +92,11 @@ int ide_acpi_init(void) return 0; } +bool ide_port_acpi(ide_hwif_t *hwif) +{ + return ide_noacpi == 0 && hwif->acpidata; +} + /** * ide_get_dev_handle - finds acpi_handle and PCI device.function * @dev: device to locate @@ -352,9 +357,6 @@ int ide_acpi_exec_tfs(ide_drive_t *drive) unsigned long gtf_address; unsigned long obj_loc; - if (ide_noacpi) - return 0; - DEBPRINT("call get_GTF, drive=%s port=%d\n", drive->name, drive->dn); ret = do_drive_get_GTF(drive, >f_length, >f_address, &obj_loc); @@ -389,16 +391,6 @@ void ide_acpi_get_timing(ide_hwif_t *hwif) struct acpi_buffer output; union acpi_object *out_obj; - if (ide_noacpi) - return; - - DEBPRINT("ENTER:\n"); - - if (!hwif->acpidata) { - DEBPRINT("no ACPI data for %s\n", hwif->name); - return; - } - /* Setting up output buffer for _GTM */ output.length = ACPI_ALLOCATE_BUFFER; output.pointer = NULL; /* ACPI-CA sets this; save/free it later */ @@ -479,16 +471,6 @@ void ide_acpi_push_timing(ide_hwif_t *hwif) struct ide_acpi_drive_link *master = &hwif->acpidata->master; struct ide_acpi_drive_link *slave = &hwif->acpidata->slave; - if (ide_noacpi) - return; - - DEBPRINT("ENTER:\n"); - - if (!hwif->acpidata) { - DEBPRINT("no ACPI data for %s\n", hwif->name); - return; - } - /* Give the GTM buffer + drive Identify data to the channel via the * _STM method: */ /* setup input parameters buffer for _STM */ @@ -527,16 +509,11 @@ void ide_acpi_set_state(ide_hwif_t *hwif, int on) ide_drive_t *drive; int i; - if (ide_noacpi || ide_noacpi_psx) + if (ide_noacpi_psx) return; DEBPRINT("ENTER:\n"); - if (!hwif->acpidata) { - DEBPRINT("no ACPI data for %s\n", hwif->name); - return; - } - /* channel first and then drives for power on and verse versa for power off */ if (on) acpi_bus_set_power(hwif->acpidata->obj_handle, ACPI_STATE_D0); @@ -616,7 +593,7 @@ void ide_acpi_port_init_devices(ide_hwif_t *hwif) drive->name, err); } - if (!ide_acpionboot) { + if (ide_noacpi || ide_acpionboot == 0) { DEBPRINT("ACPI methods disabled on boot\n"); return; } diff --git a/drivers/ide/ide-pm.c b/drivers/ide/ide-pm.c index c14ca144cff..ad7be2669dc 100644 --- a/drivers/ide/ide-pm.c +++ b/drivers/ide/ide-pm.c @@ -10,9 +10,11 @@ int generic_ide_suspend(struct device *dev, pm_message_t mesg) struct request_pm_state rqpm; int ret; - /* call ACPI _GTM only once */ - if ((drive->dn & 1) == 0 || pair == NULL) - ide_acpi_get_timing(hwif); + if (ide_port_acpi(hwif)) { + /* call ACPI _GTM only once */ + if ((drive->dn & 1) == 0 || pair == NULL) + ide_acpi_get_timing(hwif); + } memset(&rqpm, 0, sizeof(rqpm)); rq = blk_get_request(drive->queue, READ, __GFP_WAIT); @@ -26,9 +28,11 @@ int generic_ide_suspend(struct device *dev, pm_message_t mesg) ret = blk_execute_rq(drive->queue, NULL, rq, 0); blk_put_request(rq); - /* call ACPI _PS3 only after both devices are suspended */ - if (ret == 0 && ((drive->dn & 1) || pair == NULL)) - ide_acpi_set_state(hwif, 0); + if (ret == 0 && ide_port_acpi(hwif)) { + /* call ACPI _PS3 only after both devices are suspended */ + if ((drive->dn & 1) || pair == NULL) + ide_acpi_set_state(hwif, 0); + } return ret; } @@ -42,13 +46,15 @@ int generic_ide_resume(struct device *dev) struct request_pm_state rqpm; int err; - /* call ACPI _PS0 / _STM only once */ - if ((drive->dn & 1) == 0 || pair == NULL) { - ide_acpi_set_state(hwif, 1); - ide_acpi_push_timing(hwif); - } + if (ide_port_acpi(hwif)) { + /* call ACPI _PS0 / _STM only once */ + if ((drive->dn & 1) == 0 || pair == NULL) { + ide_acpi_set_state(hwif, 1); + ide_acpi_push_timing(hwif); + } - ide_acpi_exec_tfs(drive); + ide_acpi_exec_tfs(drive); + } memset(&rqpm, 0, sizeof(rqpm)); rq = blk_get_request(drive->queue, READ, __GFP_WAIT); diff --git a/include/linux/ide.h b/include/linux/ide.h index c6af7c44d46..edc93a6d931 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -1419,6 +1419,7 @@ static inline void ide_dma_unmap_sg(ide_drive_t *drive, #ifdef CONFIG_BLK_DEV_IDEACPI int ide_acpi_init(void); +bool ide_port_acpi(ide_hwif_t *hwif); extern int ide_acpi_exec_tfs(ide_drive_t *drive); extern void ide_acpi_get_timing(ide_hwif_t *hwif); extern void ide_acpi_push_timing(ide_hwif_t *hwif); @@ -1427,6 +1428,7 @@ void ide_acpi_port_init_devices(ide_hwif_t *); extern void ide_acpi_set_state(ide_hwif_t *hwif, int on); #else static inline int ide_acpi_init(void) { return 0; } +static inline bool ide_port_acpi(ide_hwif_t *hwif) { return 0; } static inline int ide_acpi_exec_tfs(ide_drive_t *drive) { return 0; } static inline void ide_acpi_get_timing(ide_hwif_t *hwif) { ; } static inline void ide_acpi_push_timing(ide_hwif_t *hwif) { ; } -- cgit v1.2.3 From e18ed145c7f556f1de8350c32739bf35b26df705 Mon Sep 17 00:00:00 2001 From: Christian Engelmayer Date: Mon, 29 Jun 2009 19:31:41 -0700 Subject: ide: memory overrun in ide_get_identity_ioctl() on big endian machines using ioctl HDIO_OBSOLETE_IDENTITY This patch fixes a memory overrun in function ide_get_identity_ioctl() which chooses the size of a memory buffer depending on the ioctl command that led to the function call, however, passes that buffer to a function which needs the buffer size to be always chosen unconditionally. Due to conditional compilation the memory overrun can only happen on big endian machines. The error can be triggered using ioctl HDIO_OBSOLETE_IDENTITY. Usage of ioctl HDIO_GET_IDENTITY is safe. Signed-off-by: Christian Engelmayer Acked-by: Bartlomiej Zolnierkiewicz Signed-off-by: David S. Miller --- drivers/ide/ide-ioctls.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/ide/ide-ioctls.c b/drivers/ide/ide-ioctls.c index 82f252c3ee6..e246d3d3fbc 100644 --- a/drivers/ide/ide-ioctls.c +++ b/drivers/ide/ide-ioctls.c @@ -64,7 +64,8 @@ static int ide_get_identity_ioctl(ide_drive_t *drive, unsigned int cmd, goto out; } - id = kmalloc(size, GFP_KERNEL); + /* ata_id_to_hd_driveid() relies on 'id' to be fully allocated. */ + id = kmalloc(ATA_ID_WORDS * 2, GFP_KERNEL); if (id == NULL) { rc = -ENOMEM; goto out; -- cgit v1.2.3 From e1605495c716ef4eebdb7606bcd1b593f28e2837 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Mon, 29 Jun 2009 11:17:38 +0100 Subject: intel-iommu: Introduce domain_sg_mapping() to speed up intel_map_sg() Instead of calling domain_pfn_mapping() repeatedly with single or small numbers of pages, just pass the sglist in. It can optimise the number of cache flushes like domain_pfn_mapping() does, and gives a huge speedup for large scatterlists. Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 83 +++++++++++++++++++++++++++++++++++------------ 1 file changed, 62 insertions(+), 21 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 11a23201445..28bd5f2d78f 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -1635,6 +1635,56 @@ static int domain_context_mapped(struct pci_dev *pdev) tmp->devfn); } +static int domain_sg_mapping(struct dmar_domain *domain, unsigned long iov_pfn, + struct scatterlist *sg, unsigned long nr_pages, + int prot) +{ + struct dma_pte *first_pte = NULL, *pte = NULL; + uint64_t pteval; + int addr_width = agaw_to_width(domain->agaw) - VTD_PAGE_SHIFT; + unsigned long sg_res = 0; + + BUG_ON(addr_width < BITS_PER_LONG && (iov_pfn + nr_pages - 1) >> addr_width); + + if ((prot & (DMA_PTE_READ|DMA_PTE_WRITE)) == 0) + return -EINVAL; + + prot &= DMA_PTE_READ | DMA_PTE_WRITE | DMA_PTE_SNP; + + while (nr_pages--) { + if (!sg_res) { + sg_res = (sg->offset + sg->length + VTD_PAGE_SIZE - 1) >> VTD_PAGE_SHIFT; + sg->dma_address = ((dma_addr_t)iov_pfn << VTD_PAGE_SHIFT) + sg->offset; + sg->dma_length = sg->length; + pteval = page_to_phys(sg_page(sg)) | prot; + } + if (!pte) { + first_pte = pte = pfn_to_dma_pte(domain, iov_pfn); + if (!pte) + return -ENOMEM; + } + /* We don't need lock here, nobody else + * touches the iova range + */ + BUG_ON(dma_pte_addr(pte)); + pte->val = pteval; + pte++; + if (!nr_pages || + (unsigned long)pte >> VTD_PAGE_SHIFT != + (unsigned long)first_pte >> VTD_PAGE_SHIFT) { + domain_flush_cache(domain, first_pte, + (void *)pte - (void *)first_pte); + pte = NULL; + } + iov_pfn++; + pteval += VTD_PAGE_SIZE; + sg_res--; + if (!sg_res) + sg = sg_next(sg); + } + return 0; +} + static int domain_pfn_mapping(struct dmar_domain *domain, unsigned long iov_pfn, unsigned long phys_pfn, unsigned long nr_pages, int prot) @@ -2758,27 +2808,18 @@ static int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int ne prot |= DMA_PTE_WRITE; start_vpfn = mm_to_dma_pfn(iova->pfn_lo); - offset_pfn = 0; - for_each_sg(sglist, sg, nelems, i) { - int nr_pages = aligned_nrpages(sg->offset, sg->length); - ret = domain_pfn_mapping(domain, start_vpfn + offset_pfn, - page_to_dma_pfn(sg_page(sg)), - nr_pages, prot); - if (ret) { - /* clear the page */ - dma_pte_clear_range(domain, start_vpfn, - start_vpfn + offset_pfn); - /* free page tables */ - dma_pte_free_pagetable(domain, start_vpfn, - start_vpfn + offset_pfn); - /* free iova */ - __free_iova(&domain->iovad, iova); - return 0; - } - sg->dma_address = ((dma_addr_t)(start_vpfn + offset_pfn) - << VTD_PAGE_SHIFT) + sg->offset; - sg->dma_length = sg->length; - offset_pfn += nr_pages; + + ret = domain_sg_mapping(domain, start_vpfn, sglist, mm_to_dma_pfn(size), prot); + if (unlikely(ret)) { + /* clear the page */ + dma_pte_clear_range(domain, start_vpfn, + start_vpfn + size - 1); + /* free page tables */ + dma_pte_free_pagetable(domain, start_vpfn, + start_vpfn + size - 1); + /* free iova */ + __free_iova(&domain->iovad, iova); + return 0; } /* it's a non-present to present mapping. Only flush if caching mode */ -- cgit v1.2.3 From 9051aa0268dc1c3e42cd79a802b0af1f2bfcadae Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Mon, 29 Jun 2009 12:30:54 +0100 Subject: intel-iommu: Combine domain_pfn_mapping() and domain_sg_mapping() Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 62 +++++++++++++++++------------------------------ 1 file changed, 22 insertions(+), 40 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 28bd5f2d78f..14308533b1c 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -1635,14 +1635,14 @@ static int domain_context_mapped(struct pci_dev *pdev) tmp->devfn); } -static int domain_sg_mapping(struct dmar_domain *domain, unsigned long iov_pfn, - struct scatterlist *sg, unsigned long nr_pages, - int prot) +static int __domain_mapping(struct dmar_domain *domain, unsigned long iov_pfn, + struct scatterlist *sg, unsigned long phys_pfn, + unsigned long nr_pages, int prot) { struct dma_pte *first_pte = NULL, *pte = NULL; - uint64_t pteval; + phys_addr_t uninitialized_var(pteval); int addr_width = agaw_to_width(domain->agaw) - VTD_PAGE_SHIFT; - unsigned long sg_res = 0; + unsigned long sg_res; BUG_ON(addr_width < BITS_PER_LONG && (iov_pfn + nr_pages - 1) >> addr_width); @@ -1651,6 +1651,13 @@ static int domain_sg_mapping(struct dmar_domain *domain, unsigned long iov_pfn, prot &= DMA_PTE_READ | DMA_PTE_WRITE | DMA_PTE_SNP; + if (sg) + sg_res = 0; + else { + sg_res = nr_pages + 1; + pteval = ((phys_addr_t)phys_pfn << VTD_PAGE_SHIFT) | prot; + } + while (nr_pages--) { if (!sg_res) { sg_res = (sg->offset + sg->length + VTD_PAGE_SIZE - 1) >> VTD_PAGE_SHIFT; @@ -1685,43 +1692,18 @@ static int domain_sg_mapping(struct dmar_domain *domain, unsigned long iov_pfn, return 0; } -static int domain_pfn_mapping(struct dmar_domain *domain, unsigned long iov_pfn, - unsigned long phys_pfn, unsigned long nr_pages, - int prot) +static inline int domain_sg_mapping(struct dmar_domain *domain, unsigned long iov_pfn, + struct scatterlist *sg, unsigned long nr_pages, + int prot) { - struct dma_pte *first_pte = NULL, *pte = NULL; - int addr_width = agaw_to_width(domain->agaw) - VTD_PAGE_SHIFT; - - BUG_ON(addr_width < BITS_PER_LONG && (iov_pfn + nr_pages - 1) >> addr_width); - - if ((prot & (DMA_PTE_READ|DMA_PTE_WRITE)) == 0) - return -EINVAL; - - prot &= DMA_PTE_READ | DMA_PTE_WRITE | DMA_PTE_SNP; + return __domain_mapping(domain, iov_pfn, sg, 0, nr_pages, prot); +} - while (nr_pages--) { - if (!pte) { - first_pte = pte = pfn_to_dma_pte(domain, iov_pfn); - if (!pte) - return -ENOMEM; - } - /* We don't need lock here, nobody else - * touches the iova range - */ - BUG_ON(dma_pte_addr(pte)); - pte->val = (phys_pfn << VTD_PAGE_SHIFT) | prot; - pte++; - if (!nr_pages || - (unsigned long)pte >> VTD_PAGE_SHIFT != - (unsigned long)first_pte >> VTD_PAGE_SHIFT) { - domain_flush_cache(domain, first_pte, - (void *)pte - (void *)first_pte); - pte = NULL; - } - iov_pfn++; - phys_pfn++; - } - return 0; +static inline int domain_pfn_mapping(struct dmar_domain *domain, unsigned long iov_pfn, + unsigned long phys_pfn, unsigned long nr_pages, + int prot) +{ + return __domain_mapping(domain, iov_pfn, NULL, phys_pfn, nr_pages, prot); } static void iommu_detach_dev(struct intel_iommu *iommu, u8 bus, u8 devfn) -- cgit v1.2.3 From 1bf20f0dc5629032ddd07617139d9fbca66c1642 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Mon, 29 Jun 2009 22:06:43 +0100 Subject: intel-iommu: dump mappings but don't die on pte already set Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 14308533b1c..40ce5a03f18 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -1673,7 +1673,16 @@ static int __domain_mapping(struct dmar_domain *domain, unsigned long iov_pfn, /* We don't need lock here, nobody else * touches the iova range */ - BUG_ON(dma_pte_addr(pte)); + if (unlikely(dma_pte_addr(pte))) { + static int dumps = 5; + printk(KERN_CRIT "ERROR: DMA PTE for vPFN 0x%lx already set (to %llx)\n", + iov_pfn, pte->val); + if (dumps) { + dumps--; + debug_dma_dump_mappings(NULL); + } + WARN_ON(1); + } pte->val = pteval; pte++; if (!nr_pages || -- cgit v1.2.3 From 3d7b0e4154b4963d6bd39991ec8eaa09caeb3994 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Tue, 30 Jun 2009 03:38:09 +0100 Subject: intel-iommu: Don't free too much in dma_pte_free_pagetable() The loop condition was wrong -- we should free a PMD only if its _entire_ range is within the range we're intending to clear. The early-termination condition was right, but not the loop. Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 40ce5a03f18..35bdd2a06ca 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -815,7 +815,7 @@ static void dma_pte_free_pagetable(struct dmar_domain *domain, if (tmp + level_size(level) - 1 > last_pfn) return; - while (tmp <= last_pfn) { + while (tmp + level_size(level) - 1 <= last_pfn) { pte = dma_pfn_level_pte(domain, tmp, level); if (pte) { free_pgtable_page( -- cgit v1.2.3 From f3a0a52fff4dbfdea2dccc908d00c038481d888e Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Tue, 30 Jun 2009 03:40:07 +0100 Subject: intel-iommu: Performance improvement for dma_pte_free_pagetable() As with other functions, batch the CPU data cache flushes and don't keep recalculating PTE addresses. Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 27 +++++++++++++++++---------- 1 file changed, 17 insertions(+), 10 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 35bdd2a06ca..ec7e032d5ab 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -797,7 +797,7 @@ static void dma_pte_free_pagetable(struct dmar_domain *domain, unsigned long last_pfn) { int addr_width = agaw_to_width(domain->agaw) - VTD_PAGE_SHIFT; - struct dma_pte *pte; + struct dma_pte *first_pte, *pte; int total = agaw_to_level(domain->agaw); int level; unsigned long tmp; @@ -805,25 +805,32 @@ static void dma_pte_free_pagetable(struct dmar_domain *domain, BUG_ON(addr_width < BITS_PER_LONG && start_pfn >> addr_width); BUG_ON(addr_width < BITS_PER_LONG && last_pfn >> addr_width); - /* we don't need lock here, nobody else touches the iova range */ + /* We don't need lock here; nobody else touches the iova range */ level = 2; while (level <= total) { tmp = align_to_level(start_pfn, level); - /* Only clear this pte/pmd if we're asked to clear its - _whole_ range */ + /* If we can't even clear one PTE at this level, we're done */ if (tmp + level_size(level) - 1 > last_pfn) return; while (tmp + level_size(level) - 1 <= last_pfn) { - pte = dma_pfn_level_pte(domain, tmp, level); - if (pte) { - free_pgtable_page( - phys_to_virt(dma_pte_addr(pte))); + first_pte = pte = dma_pfn_level_pte(domain, tmp, level); + if (!pte) { + tmp = align_to_level(tmp + 1, level + 1); + continue; + } + while (tmp + level_size(level) - 1 <= last_pfn && + (unsigned long)pte >> VTD_PAGE_SHIFT == + (unsigned long)first_pte >> VTD_PAGE_SHIFT) { + free_pgtable_page(phys_to_virt(dma_pte_addr(pte))); dma_clear_pte(pte); - domain_flush_cache(domain, pte, sizeof(*pte)); + pte++; + tmp += level_size(level); } - tmp += level_size(level); + domain_flush_cache(domain, first_pte, + (void *)pte - (void *)first_pte); + } level++; } -- cgit v1.2.3 From 6a84c234da06a4ac0c1b4c819b83cf264674c2d8 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Sun, 28 Jun 2009 01:41:52 -0600 Subject: ASoC: Fix typo in MPC5200 PSC AC97 driver Kconfig ALSA SoC drivers should be specify SND_SOC_AC97_BUS instead, not AC97_BUS. Without SND_SOC_AC97_BUS defined, an AC97 device will not get correctly registered on the AC97 bus, which prevents thinks like the WM9712 touchscreen driver from getting probed. Tested against 2.6.31-rc1. Signed-off-by: Grant Likely Acked-by: Jon Smirl Signed-off-by: Mark Brown --- sound/soc/fsl/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig index 5dbebf82249..5661876ee83 100644 --- a/sound/soc/fsl/Kconfig +++ b/sound/soc/fsl/Kconfig @@ -33,7 +33,7 @@ config SND_SOC_MPC5200_I2S config SND_SOC_MPC5200_AC97 tristate "Freescale MPC5200 PSC in AC97 mode driver" depends on PPC_MPC52xx && PPC_BESTCOMM - select AC97_BUS + select SND_SOC_AC97_BUS select SND_MPC52xx_DMA select PPC_BESTCOMM_GEN_BD help -- cgit v1.2.3 From 40d9ec14e7e1f62d2379ecc1b5ee00ddfc2a5d0c Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Sun, 28 Jun 2009 01:42:06 -0600 Subject: ASoC: remove BROKEN from Efika and pcm030 fabric drivers The needed spin_event_timeout() macro is now merged in from the powerpc tree, so these drivers are no longer broken. This reverts commit 0c0e09e21a9e7bc6ca54e06ef3d497255ca26383 (ASoC: Mark MPC5200 AC97 as BROKEN until PowerPC merge issues are resolved) Tested against 2.6.31-rc1. Signed-off-by: Grant Likely Acked-by: Jon Smirl Signed-off-by: Mark Brown --- sound/soc/fsl/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig index 5661876ee83..8cb65ccad35 100644 --- a/sound/soc/fsl/Kconfig +++ b/sound/soc/fsl/Kconfig @@ -41,7 +41,7 @@ config SND_SOC_MPC5200_AC97 config SND_MPC52xx_SOC_PCM030 tristate "SoC AC97 Audio support for Phytec pcm030 and WM9712" - depends on PPC_MPC5200_SIMPLE && BROKEN + depends on PPC_MPC5200_SIMPLE select SND_SOC_MPC5200_AC97 select SND_SOC_WM9712 help @@ -50,7 +50,7 @@ config SND_MPC52xx_SOC_PCM030 config SND_MPC52xx_SOC_EFIKA tristate "SoC AC97 Audio support for bbplan Efika and STAC9766" - depends on PPC_EFIKA && BROKEN + depends on PPC_EFIKA select SND_SOC_MPC5200_AC97 select SND_SOC_STAC9766 help -- cgit v1.2.3 From 1bdd7419910c1506151e7b9e2d60c6980e015f76 Mon Sep 17 00:00:00 2001 From: Janusz Krzysztofik Date: Sun, 28 Jun 2009 00:21:05 +0200 Subject: ASoC: OMAP: fix OMAP1510 broken PCM pointer callback This patch tries to work around the problem of broken OMAP1510 PCM playback pointer calculation by replacing DMA function call that incorrectly tries to read the value form DMA hardware with a value computed locally from an already maintained variable omap_runtime_data.period_index. Tested on OMAP5910 based Amstrad Delta (E3) using work in progress ASoC driver. Based on linux-2.6-asoc.git v2.6.31-rc1. Signed-off-by: Janusz Krzysztofik Acked-by: Jarkko Nikula Acked-by: Peter Ujfalusi Signed-off-by: Mark Brown --- sound/soc/omap/omap-pcm.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c index 6454e15f7d2..84a1950880e 100644 --- a/sound/soc/omap/omap-pcm.c +++ b/sound/soc/omap/omap-pcm.c @@ -216,12 +216,15 @@ static snd_pcm_uframes_t omap_pcm_pointer(struct snd_pcm_substream *substream) dma_addr_t ptr; snd_pcm_uframes_t offset; - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - ptr = omap_get_dma_src_pos(prtd->dma_ch); - else + if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { ptr = omap_get_dma_dst_pos(prtd->dma_ch); + offset = bytes_to_frames(runtime, ptr - runtime->dma_addr); + } else if (!(cpu_is_omap1510())) { + ptr = omap_get_dma_src_pos(prtd->dma_ch); + offset = bytes_to_frames(runtime, ptr - runtime->dma_addr); + } else + offset = prtd->period_index * runtime->period_size; - offset = bytes_to_frames(runtime, ptr - runtime->dma_addr); if (offset >= runtime->buffer_size) offset = 0; -- cgit v1.2.3 From 57e7986ed142417498155ebcd5eaf617ac37136d Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Tue, 30 Jun 2009 16:07:19 +1000 Subject: perf_counter: Provide a way to enable counters on exec This provides a way to mark a counter to be enabled on the next exec. This is useful for measuring the total activity of a program without including overhead from the process that launches it. This also changes the perf stat command to use this new facility. Signed-off-by: Paul Mackerras Cc: Peter Zijlstra LKML-Reference: <19017.43927.838745.689203@cargo.ozlabs.ibm.com> Signed-off-by: Ingo Molnar --- include/linux/perf_counter.h | 3 ++- kernel/perf_counter.c | 50 ++++++++++++++++++++++++++++++++++++++++++++ tools/perf/builtin-stat.c | 6 +++--- 3 files changed, 55 insertions(+), 4 deletions(-) diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h index 3078e23c91e..5e970c7d3fd 100644 --- a/include/linux/perf_counter.h +++ b/include/linux/perf_counter.h @@ -179,8 +179,9 @@ struct perf_counter_attr { comm : 1, /* include comm data */ freq : 1, /* use freq, not period */ inherit_stat : 1, /* per task counts */ + enable_on_exec : 1, /* next exec enables */ - __reserved_1 : 52; + __reserved_1 : 51; __u32 wakeup_events; /* wakeup every n events */ __u32 __reserved_2; diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 66ab1e9d129..d55a50da234 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -1428,6 +1428,53 @@ void perf_counter_task_tick(struct task_struct *curr, int cpu) perf_counter_task_sched_in(curr, cpu); } +/* + * Enable all of a task's counters that have been marked enable-on-exec. + * This expects task == current. + */ +static void perf_counter_enable_on_exec(struct task_struct *task) +{ + struct perf_counter_context *ctx; + struct perf_counter *counter; + unsigned long flags; + int enabled = 0; + + local_irq_save(flags); + ctx = task->perf_counter_ctxp; + if (!ctx || !ctx->nr_counters) + goto out; + + __perf_counter_task_sched_out(ctx); + + spin_lock(&ctx->lock); + + list_for_each_entry(counter, &ctx->counter_list, list_entry) { + if (!counter->attr.enable_on_exec) + continue; + counter->attr.enable_on_exec = 0; + if (counter->state >= PERF_COUNTER_STATE_INACTIVE) + continue; + counter->state = PERF_COUNTER_STATE_INACTIVE; + counter->tstamp_enabled = + ctx->time - counter->total_time_enabled; + enabled = 1; + } + + /* + * Unclone this context if we enabled any counter. + */ + if (enabled && ctx->parent_ctx) { + put_ctx(ctx->parent_ctx); + ctx->parent_ctx = NULL; + } + + spin_unlock(&ctx->lock); + + perf_counter_task_sched_in(task, smp_processor_id()); + out: + local_irq_restore(flags); +} + /* * Cross CPU call to read the hardware counter */ @@ -2949,6 +2996,9 @@ void perf_counter_comm(struct task_struct *task) { struct perf_comm_event comm_event; + if (task->perf_counter_ctxp) + perf_counter_enable_on_exec(task); + if (!atomic_read(&nr_comm_counters)) return; diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 201ef2367dc..2e03524a1de 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -116,8 +116,9 @@ static void create_perf_stat_counter(int counter, int pid) fd[cpu][counter], strerror(errno)); } } else { - attr->inherit = inherit; - attr->disabled = 1; + attr->inherit = inherit; + attr->disabled = 1; + attr->enable_on_exec = 1; fd[0][counter] = sys_perf_counter_open(attr, pid, -1, -1, 0); if (fd[0][counter] < 0 && verbose) @@ -262,7 +263,6 @@ static int run_perf_stat(int argc, const char **argv) * Enable counters and exec the command: */ t0 = rdclock(); - prctl(PR_TASK_PERF_COUNTERS_ENABLE); close(go_pipe[1]); wait(&status); -- cgit v1.2.3 From 874d2f61d31e596c36af7732dc1b3aa2dc233824 Mon Sep 17 00:00:00 2001 From: Milan Broz Date: Tue, 30 Jun 2009 15:18:14 +0100 Subject: dm exception store: really fix type lookup Fix exception store name handling. We need to reference exception store by zero terminated string. Fixes regression introduced in commit f6bd4eb73cdf2a5bf954e497972842f39cabb7e3 Cc: Yi Yang Cc: Jonathan Brassow Cc: stable@kernel.org Cc: Andrew Morton Signed-off-by: Milan Broz Signed-off-by: Alasdair G Kergon --- drivers/md/dm-exception-store.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/md/dm-exception-store.c b/drivers/md/dm-exception-store.c index c3ae51584b1..3710ff88fc1 100644 --- a/drivers/md/dm-exception-store.c +++ b/drivers/md/dm-exception-store.c @@ -195,7 +195,7 @@ int dm_exception_store_create(struct dm_target *ti, int argc, char **argv, struct dm_exception_store **store) { int r = 0; - struct dm_exception_store_type *type; + struct dm_exception_store_type *type = NULL; struct dm_exception_store *tmp_store; char persistent; @@ -211,12 +211,15 @@ int dm_exception_store_create(struct dm_target *ti, int argc, char **argv, } persistent = toupper(*argv[1]); - if (persistent != 'P' && persistent != 'N') { + if (persistent == 'P') + type = get_type("P"); + else if (persistent == 'N') + type = get_type("N"); + else { ti->error = "Persistent flag is not P or N"; return -EINVAL; } - type = get_type(&persistent); if (!type) { ti->error = "Exception store type not recognised"; r = -EINVAL; -- cgit v1.2.3 From ea9df47cc92573b159ef3b4fda516c32cba9c4fd Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Tue, 30 Jun 2009 15:18:17 +0100 Subject: dm table: fix blk_stack_limits arg to use bytes not sectors The offset passed to blk_stack_limits() must be in bytes not sectors. Fixes false warnings like the following: device-mapper: table: 254:1: target device sda6 is misaligned Signed-off-by: Mike Snitzer Reported-by: Frans Pop Tested-by: Frans Pop Signed-off-by: Alasdair G Kergon --- drivers/md/dm-table.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index 4899ebe767c..2cba557d9e6 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -495,7 +495,7 @@ int dm_set_device_limits(struct dm_target *ti, struct dm_dev *dev, return 0; } - if (blk_stack_limits(limits, &q->limits, start) < 0) + if (blk_stack_limits(limits, &q->limits, start << 9) < 0) DMWARN("%s: target device %s is misaligned", dm_device_name(ti->table->md), bdevname(bdev, b)); -- cgit v1.2.3 From f5812a7a336fb952d819e4427b9a2dce02368e82 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 30 Jun 2009 11:43:17 -0300 Subject: perf_counter tools: Adjust only prelinked symbol's addresses I.e. we can't handle these two kinds of files in the same way: 1) prelinked system library: [acme@doppio pahole]$ readelf -s /usr/lib64/libdw-0.141.so | egrep 'FUNC.+GLOBAL.+dwfl_report_elf' 278: 00000030450105a0 261 FUNC GLOBAL DEFAULT 12 dwfl_report_elf@@ELFUTILS_0.122 2) not prelinked library with debug information from a -debuginfo package: [acme@doppio pahole]$ readelf -s /usr/lib/debug/usr/lib64/libdw-0.141.so.debug | egrep 'FUNC.+GLOBAL.+dwfl_report_elf' 629: 00000000000105a0 261 FUNC GLOBAL DEFAULT 12 dwfl_report_elf [acme@doppio pahole]$ Now the numbers I got for a pahole perf run are in line with the numbers I get from oprofile. Signed-off-by: Arnaldo Carvalho de Melo Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Frederic Weisbecker LKML-Reference: <20090630144317.GB12663@ghostprotocols.net> Signed-off-by: Ingo Molnar --- tools/perf/util/symbol.c | 16 +++++++++++----- tools/perf/util/symbol.h | 3 ++- 2 files changed, 13 insertions(+), 6 deletions(-) diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 9c659ef6aec..78c2efde01b 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -520,7 +520,9 @@ static int dso__load_sym(struct dso *self, int fd, const char *name, nr_syms = shdr.sh_size / shdr.sh_entsize; memset(&sym, 0, sizeof(sym)); - + self->prelinked = elf_section_by_name(elf, &ehdr, &shdr, + ".gnu.prelink_undo", + NULL) != NULL; elf_symtab__for_each_symbol(syms, nr_syms, index, sym) { struct symbol *f; u64 obj_start; @@ -535,11 +537,13 @@ static int dso__load_sym(struct dso *self, int fd, const char *name, gelf_getshdr(sec, &shdr); obj_start = sym.st_value; - if (verbose >= 2) - printf("adjusting symbol: st_value: %Lx sh_addr: %Lx sh_offset: %Lx\n", - (u64)sym.st_value, (u64)shdr.sh_addr, (u64)shdr.sh_offset); + if (self->prelinked) { + if (verbose >= 2) + printf("adjusting symbol: st_value: %Lx sh_addr: %Lx sh_offset: %Lx\n", + (u64)sym.st_value, (u64)shdr.sh_addr, (u64)shdr.sh_offset); - sym.st_value -= shdr.sh_addr - shdr.sh_offset; + sym.st_value -= shdr.sh_addr - shdr.sh_offset; + } f = symbol__new(sym.st_value, sym.st_size, elf_sym__name(&sym, symstrs), @@ -573,6 +577,8 @@ int dso__load(struct dso *self, symbol_filter_t filter, int verbose) if (!name) return -1; + self->prelinked = 0; + if (strncmp(self->name, "/tmp/perf-", 10) == 0) return dso__load_perf_map(self, filter, verbose); diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 940b432db16..2c48ace8203 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -20,8 +20,9 @@ struct symbol { struct dso { struct list_head node; struct rb_root syms; - unsigned int sym_priv_size; struct symbol *(*find_symbol)(struct dso *, u64 ip); + unsigned int sym_priv_size; + unsigned char prelinked; char name[0]; }; -- cgit v1.2.3 From b4c458b3a23d76936e76678f2074b1528f129f7a Mon Sep 17 00:00:00 2001 From: Csaba Henk Date: Mon, 29 Jun 2009 03:26:53 +0200 Subject: fuse: fix return value of fuse_dev_write() On 64 bit systems -- where sizeof(ssize_t) > sizeof(int) -- the following test exposes a bug due to a non-careful return of an int or unsigned value: implement a FUSE filesystem which sends an unsolicited notification to the kernel with invalid opcode. The respective write to /dev/fuse will return (1 << 32) - EINVAL with errno == 0 instead of -1 with errno == EINVAL. Signed-off-by: Miklos Szeredi CC: stable@kernel.org --- fs/fuse/dev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index 8fed2ed12f3..8a11a8c67c4 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -910,7 +910,7 @@ static ssize_t fuse_dev_write(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, loff_t pos) { int err; - unsigned nbytes = iov_length(iov, nr_segs); + size_t nbytes = iov_length(iov, nr_segs); struct fuse_req *req; struct fuse_out_header oh; struct fuse_copy_state cs; -- cgit v1.2.3 From 201fa69a2849536ef2912e8e971ec0b01c04eff4 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Tue, 30 Jun 2009 20:06:24 +0200 Subject: fuse: fix bad return value in fuse_file_poll() Fix fuse_file_poll() which returned a -errno value instead of a poll mask. Signed-off-by: Miklos Szeredi CC: stable@kernel.org --- fs/fuse/file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/fuse/file.c b/fs/fuse/file.c index fce6ce694fd..cbc464043b6 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -1922,7 +1922,7 @@ unsigned fuse_file_poll(struct file *file, poll_table *wait) req = fuse_get_req(fc); if (IS_ERR(req)) - return PTR_ERR(req); + return POLLERR; req->in.h.opcode = FUSE_POLL; req->in.h.nodeid = ff->nodeid; -- cgit v1.2.3 From e0a43ddcc08c34dbd666d93600fd23914505f4aa Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Tue, 30 Jun 2009 20:12:23 +0200 Subject: fuse: allow umask processing in userspace MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch lets filesystems handle masking the file mode on creation. This is needed if filesystem is using ACLs. - The CREATE, MKDIR and MKNOD requests are extended with a "umask" parameter. - A new FUSE_DONT_MASK flag is added to the INIT request/reply. With this the filesystem may request that the create mode is not masked. CC: Jean-Pierre André Signed-off-by: Miklos Szeredi --- fs/fuse/dir.c | 20 +++++++++++++++++--- fs/fuse/fuse_i.h | 3 +++ fs/fuse/inode.c | 9 ++++++++- include/linux/fuse.h | 20 ++++++++++++++++++-- 4 files changed, 46 insertions(+), 6 deletions(-) diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index b3089a083d3..6b700734e51 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -375,7 +375,7 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode, struct fuse_conn *fc = get_fuse_conn(dir); struct fuse_req *req; struct fuse_req *forget_req; - struct fuse_open_in inarg; + struct fuse_create_in inarg; struct fuse_open_out outopen; struct fuse_entry_out outentry; struct fuse_file *ff; @@ -399,15 +399,20 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode, if (!ff) goto out_put_request; + if (!fc->dont_mask) + mode &= ~current_umask(); + flags &= ~O_NOCTTY; memset(&inarg, 0, sizeof(inarg)); memset(&outentry, 0, sizeof(outentry)); inarg.flags = flags; inarg.mode = mode; + inarg.umask = current_umask(); req->in.h.opcode = FUSE_CREATE; req->in.h.nodeid = get_node_id(dir); req->in.numargs = 2; - req->in.args[0].size = sizeof(inarg); + req->in.args[0].size = fc->minor < 12 ? sizeof(struct fuse_open_in) : + sizeof(inarg); req->in.args[0].value = &inarg; req->in.args[1].size = entry->d_name.len + 1; req->in.args[1].value = entry->d_name.name; @@ -546,12 +551,17 @@ static int fuse_mknod(struct inode *dir, struct dentry *entry, int mode, if (IS_ERR(req)) return PTR_ERR(req); + if (!fc->dont_mask) + mode &= ~current_umask(); + memset(&inarg, 0, sizeof(inarg)); inarg.mode = mode; inarg.rdev = new_encode_dev(rdev); + inarg.umask = current_umask(); req->in.h.opcode = FUSE_MKNOD; req->in.numargs = 2; - req->in.args[0].size = sizeof(inarg); + req->in.args[0].size = fc->minor < 12 ? FUSE_COMPAT_MKNOD_IN_SIZE : + sizeof(inarg); req->in.args[0].value = &inarg; req->in.args[1].size = entry->d_name.len + 1; req->in.args[1].value = entry->d_name.name; @@ -578,8 +588,12 @@ static int fuse_mkdir(struct inode *dir, struct dentry *entry, int mode) if (IS_ERR(req)) return PTR_ERR(req); + if (!fc->dont_mask) + mode &= ~current_umask(); + memset(&inarg, 0, sizeof(inarg)); inarg.mode = mode; + inarg.umask = current_umask(); req->in.h.opcode = FUSE_MKDIR; req->in.numargs = 2; req->in.args[0].size = sizeof(inarg); diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h index aaf2f9ff970..ede4f77b2d6 100644 --- a/fs/fuse/fuse_i.h +++ b/fs/fuse/fuse_i.h @@ -446,6 +446,9 @@ struct fuse_conn { /** Do multi-page cached writes */ unsigned big_writes:1; + /** Don't apply umask to creation modes */ + unsigned dont_mask:1; + /** The number of requests waiting for completion */ atomic_t num_waiting; diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index d8673ccf90b..6cc501bd018 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -725,6 +725,8 @@ static void process_init_reply(struct fuse_conn *fc, struct fuse_req *req) } if (arg->flags & FUSE_BIG_WRITES) fc->big_writes = 1; + if (arg->flags & FUSE_DONT_MASK) + fc->dont_mask = 1; } else { ra_pages = fc->max_read / PAGE_CACHE_SIZE; fc->no_lock = 1; @@ -748,7 +750,7 @@ static void fuse_send_init(struct fuse_conn *fc, struct fuse_req *req) arg->minor = FUSE_KERNEL_MINOR_VERSION; arg->max_readahead = fc->bdi.ra_pages * PAGE_CACHE_SIZE; arg->flags |= FUSE_ASYNC_READ | FUSE_POSIX_LOCKS | FUSE_ATOMIC_O_TRUNC | - FUSE_EXPORT_SUPPORT | FUSE_BIG_WRITES; + FUSE_EXPORT_SUPPORT | FUSE_BIG_WRITES | FUSE_DONT_MASK; req->in.h.opcode = FUSE_INIT; req->in.numargs = 1; req->in.args[0].size = sizeof(*arg); @@ -864,6 +866,11 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent) if (err) goto err_put_conn; + /* Handle umasking inside the fuse code */ + if (sb->s_flags & MS_POSIXACL) + fc->dont_mask = 1; + sb->s_flags |= MS_POSIXACL; + fc->release = fuse_free_conn; fc->flags = d.flags; fc->user_id = d.user_id; diff --git a/include/linux/fuse.h b/include/linux/fuse.h index d41ed593f79..e2b816a6248 100644 --- a/include/linux/fuse.h +++ b/include/linux/fuse.h @@ -25,6 +25,9 @@ * - add IOCTL message * - add unsolicited notification support * - add POLL message and NOTIFY_POLL notification + * + * 7.12 + * - add umask flag to input argument of open, mknod and mkdir */ #ifndef _LINUX_FUSE_H @@ -36,7 +39,7 @@ #define FUSE_KERNEL_VERSION 7 /** Minor version number of this interface */ -#define FUSE_KERNEL_MINOR_VERSION 11 +#define FUSE_KERNEL_MINOR_VERSION 12 /** The node ID of the root inode */ #define FUSE_ROOT_ID 1 @@ -112,6 +115,7 @@ struct fuse_file_lock { * INIT request/reply flags * * FUSE_EXPORT_SUPPORT: filesystem handles lookups of "." and ".." + * FUSE_DONT_MASK: don't apply umask to file mode on create operations */ #define FUSE_ASYNC_READ (1 << 0) #define FUSE_POSIX_LOCKS (1 << 1) @@ -119,6 +123,7 @@ struct fuse_file_lock { #define FUSE_ATOMIC_O_TRUNC (1 << 3) #define FUSE_EXPORT_SUPPORT (1 << 4) #define FUSE_BIG_WRITES (1 << 5) +#define FUSE_DONT_MASK (1 << 6) /** * CUSE INIT request/reply flags @@ -262,14 +267,18 @@ struct fuse_attr_out { struct fuse_attr attr; }; +#define FUSE_COMPAT_MKNOD_IN_SIZE 8 + struct fuse_mknod_in { __u32 mode; __u32 rdev; + __u32 umask; + __u32 padding; }; struct fuse_mkdir_in { __u32 mode; - __u32 padding; + __u32 umask; }; struct fuse_rename_in { @@ -300,8 +309,15 @@ struct fuse_setattr_in { }; struct fuse_open_in { + __u32 flags; + __u32 unused; +}; + +struct fuse_create_in { __u32 flags; __u32 mode; + __u32 umask; + __u32 padding; }; struct fuse_open_out { -- cgit v1.2.3 From 3b463ae0c6264f70e5d4c0a9c46af20fed43c96e Mon Sep 17 00:00:00 2001 From: John Muir Date: Sun, 31 May 2009 11:13:57 -0400 Subject: fuse: invalidation reverse calls Add notification messages that allow the filesystem to invalidate VFS caches. Two notifications are added: 1) inode invalidation - invalidate cached attributes - invalidate a range of pages in the page cache (this is optional) 2) dentry invalidation - try to invalidate a subtree in the dentry cache Care must be taken while accessing the 'struct super_block' for the mount, as it can go away while an invalidation is in progress. To prevent this, introduce a rw-semaphore, that is taken for read during the invalidation and taken for write in the ->kill_sb callback. Cc: Csaba Henk Cc: Anand Avati Signed-off-by: Miklos Szeredi --- fs/fuse/dev.c | 81 ++++++++++++++++++++++++++++++++++++++++++++++++++++ fs/fuse/dir.c | 37 ++++++++++++++++++++++++ fs/fuse/fuse_i.h | 24 ++++++++++++++++ fs/fuse/inode.c | 59 ++++++++++++++++++++++++++++++++++++-- include/linux/fuse.h | 16 +++++++++++ 5 files changed, 214 insertions(+), 3 deletions(-) diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index 8a11a8c67c4..f58ecbc416c 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -849,6 +849,81 @@ err: return err; } +static int fuse_notify_inval_inode(struct fuse_conn *fc, unsigned int size, + struct fuse_copy_state *cs) +{ + struct fuse_notify_inval_inode_out outarg; + int err = -EINVAL; + + if (size != sizeof(outarg)) + goto err; + + err = fuse_copy_one(cs, &outarg, sizeof(outarg)); + if (err) + goto err; + fuse_copy_finish(cs); + + down_read(&fc->killsb); + err = -ENOENT; + if (!fc->sb) + goto err_unlock; + + err = fuse_reverse_inval_inode(fc->sb, outarg.ino, + outarg.off, outarg.len); + +err_unlock: + up_read(&fc->killsb); + return err; + +err: + fuse_copy_finish(cs); + return err; +} + +static int fuse_notify_inval_entry(struct fuse_conn *fc, unsigned int size, + struct fuse_copy_state *cs) +{ + struct fuse_notify_inval_entry_out outarg; + int err = -EINVAL; + char buf[FUSE_NAME_MAX+1]; + struct qstr name; + + if (size < sizeof(outarg)) + goto err; + + err = fuse_copy_one(cs, &outarg, sizeof(outarg)); + if (err) + goto err; + + err = -ENAMETOOLONG; + if (outarg.namelen > FUSE_NAME_MAX) + goto err; + + name.name = buf; + name.len = outarg.namelen; + err = fuse_copy_one(cs, buf, outarg.namelen + 1); + if (err) + goto err; + fuse_copy_finish(cs); + buf[outarg.namelen] = 0; + name.hash = full_name_hash(name.name, name.len); + + down_read(&fc->killsb); + err = -ENOENT; + if (!fc->sb) + goto err_unlock; + + err = fuse_reverse_inval_entry(fc->sb, outarg.parent, &name); + +err_unlock: + up_read(&fc->killsb); + return err; + +err: + fuse_copy_finish(cs); + return err; +} + static int fuse_notify(struct fuse_conn *fc, enum fuse_notify_code code, unsigned int size, struct fuse_copy_state *cs) { @@ -856,6 +931,12 @@ static int fuse_notify(struct fuse_conn *fc, enum fuse_notify_code code, case FUSE_NOTIFY_POLL: return fuse_notify_poll(fc, size, cs); + case FUSE_NOTIFY_INVAL_INODE: + return fuse_notify_inval_inode(fc, size, cs); + + case FUSE_NOTIFY_INVAL_ENTRY: + return fuse_notify_inval_entry(fc, size, cs); + default: fuse_copy_finish(cs); return -EINVAL; diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index 6b700734e51..e703654e7f4 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -859,6 +859,43 @@ int fuse_update_attributes(struct inode *inode, struct kstat *stat, return err; } +int fuse_reverse_inval_entry(struct super_block *sb, u64 parent_nodeid, + struct qstr *name) +{ + int err = -ENOTDIR; + struct inode *parent; + struct dentry *dir; + struct dentry *entry; + + parent = ilookup5(sb, parent_nodeid, fuse_inode_eq, &parent_nodeid); + if (!parent) + return -ENOENT; + + mutex_lock(&parent->i_mutex); + if (!S_ISDIR(parent->i_mode)) + goto unlock; + + err = -ENOENT; + dir = d_find_alias(parent); + if (!dir) + goto unlock; + + entry = d_lookup(dir, name); + dput(dir); + if (!entry) + goto unlock; + + fuse_invalidate_attr(parent); + fuse_invalidate_entry(entry); + dput(entry); + err = 0; + + unlock: + mutex_unlock(&parent->i_mutex); + iput(parent); + return err; +} + /* * Calling into a user-controlled filesystem gives the filesystem * daemon ptrace-like capabilities over the requester process. This diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h index ede4f77b2d6..52b641fc0fa 100644 --- a/fs/fuse/fuse_i.h +++ b/fs/fuse/fuse_i.h @@ -484,6 +484,12 @@ struct fuse_conn { /** Called on final put */ void (*release)(struct fuse_conn *); + + /** Super block for this connection. */ + struct super_block *sb; + + /** Read/write semaphore to hold when accessing sb. */ + struct rw_semaphore killsb; }; static inline struct fuse_conn *get_fuse_conn_super(struct super_block *sb) @@ -511,6 +517,11 @@ extern const struct file_operations fuse_dev_operations; extern const struct dentry_operations fuse_dentry_operations; +/** + * Inode to nodeid comparison. + */ +int fuse_inode_eq(struct inode *inode, void *_nodeidp); + /** * Get a filled in inode */ @@ -711,6 +722,19 @@ void fuse_release_nowrite(struct inode *inode); u64 fuse_get_attr_version(struct fuse_conn *fc); +/** + * File-system tells the kernel to invalidate cache for the given node id. + */ +int fuse_reverse_inval_inode(struct super_block *sb, u64 nodeid, + loff_t offset, loff_t len); + +/** + * File-system tells the kernel to invalidate parent attributes and + * the dentry matching parent/name. + */ +int fuse_reverse_inval_entry(struct super_block *sb, u64 parent_nodeid, + struct qstr *name); + int fuse_do_open(struct fuse_conn *fc, u64 nodeid, struct file *file, bool isdir); ssize_t fuse_direct_io(struct file *file, const char __user *buf, diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 6cc501bd018..f91ccc4a189 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -206,7 +206,7 @@ static void fuse_init_inode(struct inode *inode, struct fuse_attr *attr) BUG(); } -static int fuse_inode_eq(struct inode *inode, void *_nodeidp) +int fuse_inode_eq(struct inode *inode, void *_nodeidp) { u64 nodeid = *(u64 *) _nodeidp; if (get_node_id(inode) == nodeid) @@ -257,6 +257,31 @@ struct inode *fuse_iget(struct super_block *sb, u64 nodeid, return inode; } +int fuse_reverse_inval_inode(struct super_block *sb, u64 nodeid, + loff_t offset, loff_t len) +{ + struct inode *inode; + pgoff_t pg_start; + pgoff_t pg_end; + + inode = ilookup5(sb, nodeid, fuse_inode_eq, &nodeid); + if (!inode) + return -ENOENT; + + fuse_invalidate_attr(inode); + if (offset >= 0) { + pg_start = offset >> PAGE_CACHE_SHIFT; + if (len <= 0) + pg_end = -1; + else + pg_end = (offset + len - 1) >> PAGE_CACHE_SHIFT; + invalidate_inode_pages2_range(inode->i_mapping, + pg_start, pg_end); + } + iput(inode); + return 0; +} + static void fuse_umount_begin(struct super_block *sb) { fuse_abort_conn(get_fuse_conn_super(sb)); @@ -480,6 +505,7 @@ void fuse_conn_init(struct fuse_conn *fc) memset(fc, 0, sizeof(*fc)); spin_lock_init(&fc->lock); mutex_init(&fc->inst_mutex); + init_rwsem(&fc->killsb); atomic_set(&fc->count, 1); init_waitqueue_head(&fc->waitq); init_waitqueue_head(&fc->blocked_waitq); @@ -862,6 +888,7 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent) fuse_conn_init(fc); fc->dev = sb->s_dev; + fc->sb = sb; err = fuse_bdi_init(fc, sb); if (err) goto err_put_conn; @@ -948,12 +975,25 @@ static int fuse_get_sb(struct file_system_type *fs_type, return get_sb_nodev(fs_type, flags, raw_data, fuse_fill_super, mnt); } +static void fuse_kill_sb_anon(struct super_block *sb) +{ + struct fuse_conn *fc = get_fuse_conn_super(sb); + + if (fc) { + down_write(&fc->killsb); + fc->sb = NULL; + up_write(&fc->killsb); + } + + kill_anon_super(sb); +} + static struct file_system_type fuse_fs_type = { .owner = THIS_MODULE, .name = "fuse", .fs_flags = FS_HAS_SUBTYPE, .get_sb = fuse_get_sb, - .kill_sb = kill_anon_super, + .kill_sb = fuse_kill_sb_anon, }; #ifdef CONFIG_BLOCK @@ -965,11 +1005,24 @@ static int fuse_get_sb_blk(struct file_system_type *fs_type, mnt); } +static void fuse_kill_sb_blk(struct super_block *sb) +{ + struct fuse_conn *fc = get_fuse_conn_super(sb); + + if (fc) { + down_write(&fc->killsb); + fc->sb = NULL; + up_write(&fc->killsb); + } + + kill_block_super(sb); +} + static struct file_system_type fuseblk_fs_type = { .owner = THIS_MODULE, .name = "fuseblk", .get_sb = fuse_get_sb_blk, - .kill_sb = kill_block_super, + .kill_sb = fuse_kill_sb_blk, .fs_flags = FS_REQUIRES_DEV | FS_HAS_SUBTYPE, }; diff --git a/include/linux/fuse.h b/include/linux/fuse.h index e2b816a6248..cf593bf9fd3 100644 --- a/include/linux/fuse.h +++ b/include/linux/fuse.h @@ -28,6 +28,8 @@ * * 7.12 * - add umask flag to input argument of open, mknod and mkdir + * - add notification messages for invalidation of inodes and + * directory entries */ #ifndef _LINUX_FUSE_H @@ -229,6 +231,8 @@ enum fuse_opcode { enum fuse_notify_code { FUSE_NOTIFY_POLL = 1, + FUSE_NOTIFY_INVAL_INODE = 2, + FUSE_NOTIFY_INVAL_ENTRY = 3, FUSE_NOTIFY_CODE_MAX, }; @@ -524,4 +528,16 @@ struct fuse_dirent { #define FUSE_DIRENT_SIZE(d) \ FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen) +struct fuse_notify_inval_inode_out { + __u64 ino; + __s64 off; + __s64 len; +}; + +struct fuse_notify_inval_entry_out { + __u64 parent; + __u32 namelen; + __u32 padding; +}; + #endif /* _LINUX_FUSE_H */ -- cgit v1.2.3 From f7c2df9b55212d5ec94169a4de11e44c683e0af4 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Tue, 30 Jun 2009 21:10:13 +0100 Subject: AFS: Fix lock imbalance Don't unlock on vfs_rejected_lock path in afs_do_setlk, since the lock is unlocked after abort_attempt label. Signed-off-by: Jiri Slaby Signed-off-by: David Howells Signed-off-by: Linus Torvalds --- fs/afs/flock.c | 1 - 1 file changed, 1 deletion(-) diff --git a/fs/afs/flock.c b/fs/afs/flock.c index 210acafe4a9..3ff8bdd18fb 100644 --- a/fs/afs/flock.c +++ b/fs/afs/flock.c @@ -432,7 +432,6 @@ vfs_rejected_lock: list_del_init(&fl->fl_u.afs.link); if (list_empty(&vnode->granted_locks)) afs_defer_unlock(vnode, key); - spin_unlock(&vnode->lock); goto abort_attempt; } -- cgit v1.2.3 From 2cdb3f1d834aab27a927be7555fbf4f9e43e9261 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Wed, 24 Jun 2009 19:01:19 -0700 Subject: x86/PCI: fix boundary checking when using root CRS Don't touch info->res_num if we are out of space. Acked-by: Gary Hade Tested-by: Gary Hade Signed-off-by: Yinghai Lu Signed-off-by: Jesse Barnes --- arch/x86/pci/acpi.c | 27 +++++++++++++++------------ 1 file changed, 15 insertions(+), 12 deletions(-) diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index b26626dc517..8bf152910eb 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -68,6 +68,10 @@ setup_resource(struct acpi_resource *acpi_res, void *data) unsigned long flags; struct resource *root; int max_root_bus_resources = PCI_BUS_NUM_RESOURCES; + u64 start, end; + + if (bus_has_transparent_bridge(info->bus)) + max_root_bus_resources -= 3; status = resource_to_addr(acpi_res, &addr); if (!ACPI_SUCCESS(status)) @@ -84,25 +88,24 @@ setup_resource(struct acpi_resource *acpi_res, void *data) } else return AE_OK; - res = &info->res[info->res_num]; - res->name = info->name; - res->flags = flags; - res->start = addr.minimum + addr.translation_offset; - res->end = res->start + addr.address_length - 1; - res->child = NULL; - - if (bus_has_transparent_bridge(info->bus)) - max_root_bus_resources -= 3; + start = addr.minimum + addr.translation_offset; + end = start + addr.address_length - 1; if (info->res_num >= max_root_bus_resources) { printk(KERN_WARNING "PCI: Failed to allocate 0x%lx-0x%lx " "from %s for %s due to _CRS returning more than " - "%d resource descriptors\n", (unsigned long) res->start, - (unsigned long) res->end, root->name, info->name, + "%d resource descriptors\n", (unsigned long) start, + (unsigned long) end, root->name, info->name, max_root_bus_resources); - info->res_num++; return AE_OK; } + res = &info->res[info->res_num]; + res->name = info->name; + res->flags = flags; + res->start = start; + res->end = end; + res->child = NULL; + if (insert_resource(root, res)) { printk(KERN_ERR "PCI: Failed to allocate 0x%lx-0x%lx " "from %s for %s\n", (unsigned long) res->start, -- cgit v1.2.3 From 626fdfec1588ac1341a37805809d03a719d977e0 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Wed, 24 Jun 2009 20:00:12 -0700 Subject: x86/PCI: get root CRS before scanning children This allows us to remove adjust_transparent_bridge_resources and give x86_pci_root_bus_res_quirks a chance when _CRS is not used or not there. Acked-by: Gary Hade Tested-by: Gary Hade Signed-off-by: Yinghai Lu Signed-off-by: Jesse Barnes --- arch/x86/pci/acpi.c | 32 +++++++++----------------------- arch/x86/pci/amd_bus.c | 8 ++++++-- 2 files changed, 15 insertions(+), 25 deletions(-) diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index 8bf152910eb..1014eb4bfc3 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -117,23 +117,6 @@ setup_resource(struct acpi_resource *acpi_res, void *data) return AE_OK; } -static void -adjust_transparent_bridge_resources(struct pci_bus *bus) -{ - struct pci_dev *dev; - - list_for_each_entry(dev, &bus->devices, bus_list) { - int i; - u16 class = dev->class >> 8; - - if (class == PCI_CLASS_BRIDGE_PCI && dev->transparent) { - for(i = 3; i < PCI_BUS_NUM_RESOURCES; i++) - dev->subordinate->resource[i] = - dev->bus->resource[i - 3]; - } - } -} - static void get_current_resources(struct acpi_device *device, int busnum, int domain, struct pci_bus *bus) @@ -161,8 +144,6 @@ get_current_resources(struct acpi_device *device, int busnum, info.res_num = 0; acpi_walk_resources(device->handle, METHOD_NAME__CRS, setup_resource, &info); - if (info.res_num) - adjust_transparent_bridge_resources(bus); return; @@ -225,8 +206,15 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do */ memcpy(bus->sysdata, sd, sizeof(*sd)); kfree(sd); - } else - bus = pci_scan_bus_parented(NULL, busnum, &pci_root_ops, sd); + } else { + bus = pci_create_bus(NULL, busnum, &pci_root_ops, sd); + if (bus) { + if (pci_probe & PCI_USE__CRS) + get_current_resources(device, busnum, domain, + bus); + bus->subordinate = pci_scan_child_bus(bus); + } + } if (!bus) kfree(sd); @@ -241,8 +229,6 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do #endif } - if (bus && (pci_probe & PCI_USE__CRS)) - get_current_resources(device, busnum, domain, bus); return bus; } diff --git a/arch/x86/pci/amd_bus.c b/arch/x86/pci/amd_bus.c index f893d6a6e80..3ffa10df20b 100644 --- a/arch/x86/pci/amd_bus.c +++ b/arch/x86/pci/amd_bus.c @@ -100,8 +100,9 @@ void x86_pci_root_bus_res_quirks(struct pci_bus *b) int j; struct pci_root_info *info; - /* don't go for it if _CRS is used */ - if (pci_probe & PCI_USE__CRS) + /* don't go for it if _CRS is used already */ + if (b->resource[0] != &ioport_resource || + b->resource[1] != &iomem_resource) return; /* if only one root bus, don't need to anything */ @@ -116,6 +117,9 @@ void x86_pci_root_bus_res_quirks(struct pci_bus *b) if (i == pci_root_num) return; + printk(KERN_DEBUG "PCI: peer root bus %02x res updated from pci conf\n", + b->number); + info = &pci_root_info[i]; for (j = 0; j < info->res_num; j++) { struct resource *res; -- cgit v1.2.3 From 2be8412c6cef97b01dfaae71c04bf585d3d93a3b Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Tue, 30 Jun 2009 14:02:00 -0700 Subject: [IA64] sprintf should not be used with same source & destination address This happens to work at the moment but isn't a good idea so fix it the simple way. Resolves-bug: http://bugzilla.kernel.org/show_bug.cgi?id=13576 Signed-off-by: Alan Cox Signed-off-by: Tony Luck --- arch/ia64/sn/kernel/io_common.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/ia64/sn/kernel/io_common.c b/arch/ia64/sn/kernel/io_common.c index 76645cf6ac5..25831c47c57 100644 --- a/arch/ia64/sn/kernel/io_common.c +++ b/arch/ia64/sn/kernel/io_common.c @@ -435,7 +435,8 @@ void sn_generate_path(struct pci_bus *pci_bus, char *address) bricktype = MODULE_GET_BTYPE(moduleid); if ((bricktype == L1_BRICKTYPE_191010) || (bricktype == L1_BRICKTYPE_1932)) - sprintf(address, "%s^%d", address, geo_slot(geoid)); + sprintf(address + strlen(address), "^%d", + geo_slot(geoid)); } void __devinit -- cgit v1.2.3 From 58782b34e9ffcc04619634efe9658263344ed188 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Sun, 28 Jun 2009 09:26:07 -0700 Subject: [IA64] Remove unnecessary semicolons Signed-off-by: Joe Perches Signed-off-by: Tony Luck --- arch/ia64/kernel/esi.c | 2 +- arch/ia64/kvm/process.c | 6 +++--- arch/ia64/kvm/vcpu.c | 2 +- arch/ia64/kvm/vtlb.c | 4 ++-- 4 files changed, 7 insertions(+), 7 deletions(-) diff --git a/arch/ia64/kernel/esi.c b/arch/ia64/kernel/esi.c index ebf4e988e78..d5764a3d74a 100644 --- a/arch/ia64/kernel/esi.c +++ b/arch/ia64/kernel/esi.c @@ -65,7 +65,7 @@ static int __init esi_init (void) } if (!esi) - return -ENODEV;; + return -ENODEV; systab = __va(esi); diff --git a/arch/ia64/kvm/process.c b/arch/ia64/kvm/process.c index a8f84da04b4..bb862fb224f 100644 --- a/arch/ia64/kvm/process.c +++ b/arch/ia64/kvm/process.c @@ -130,7 +130,7 @@ static void collect_interruption(struct kvm_vcpu *vcpu) if (vdcr & IA64_DCR_PP) { vpsr |= IA64_PSR_PP; } else { - vpsr &= ~IA64_PSR_PP;; + vpsr &= ~IA64_PSR_PP; } vcpu_set_psr(vcpu, vpsr); @@ -594,11 +594,11 @@ static void set_pal_call_data(struct kvm_vcpu *vcpu) p->u.pal_data.gr30 = vcpu_get_gr(vcpu, 30); break; case PAL_BRAND_INFO: - p->u.pal_data.gr29 = gr29;; + p->u.pal_data.gr29 = gr29; p->u.pal_data.gr30 = kvm_trans_pal_call_args(vcpu, gr30); break; default: - p->u.pal_data.gr29 = gr29;; + p->u.pal_data.gr29 = gr29; p->u.pal_data.gr30 = vcpu_get_gr(vcpu, 30); } p->u.pal_data.gr28 = gr28; diff --git a/arch/ia64/kvm/vcpu.c b/arch/ia64/kvm/vcpu.c index a2c6c15e476..46b02cbcc87 100644 --- a/arch/ia64/kvm/vcpu.c +++ b/arch/ia64/kvm/vcpu.c @@ -406,7 +406,7 @@ void getreg(unsigned long regnum, unsigned long *val, * Now look at registers in [0-31] range and init correct UNAT */ addr = (unsigned long)regs; - unat = ®s->eml_unat;; + unat = ®s->eml_unat; addr += gr_info[regnum]; diff --git a/arch/ia64/kvm/vtlb.c b/arch/ia64/kvm/vtlb.c index 4290a429bf7..20b3852f7a6 100644 --- a/arch/ia64/kvm/vtlb.c +++ b/arch/ia64/kvm/vtlb.c @@ -135,7 +135,7 @@ struct thash_data *__vtr_lookup(struct kvm_vcpu *vcpu, u64 va, int type) u64 rid; rid = vcpu_get_rr(vcpu, va); - rid = rid & RR_RID_MASK;; + rid = rid & RR_RID_MASK; if (type == D_TLB) { if (vcpu_quick_region_check(vcpu->arch.dtr_regions, va)) { for (trp = (struct thash_data *)&vcpu->arch.dtrs, i = 0; @@ -518,7 +518,7 @@ struct thash_data *vtlb_lookup(struct kvm_vcpu *v, u64 va, int is_data) struct thash_cb *hcb = &v->arch.vtlb; - cch = __vtr_lookup(v, va, is_data);; + cch = __vtr_lookup(v, va, is_data); if (cch) return cch; -- cgit v1.2.3 From fa276f36f3d8743295e067fb483b42dca8bd1ece Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Tue, 30 Jun 2009 12:01:57 +0100 Subject: [IA64] address compiler warnings perfmon.c/salinfo.c perfmon.c has a dubious cast directly from "int" to "void *". Add an intermediate cast to "long" to keep gcc happy. salinfo.c uses "down_trylock()" in a highly creative way (explained in the comments in the file) ... but it does kick out this warning: arch/ia64/kernel/salinfo.c:195: warning: ignoring return value of 'down_trylock' which people occasionally try to "fix" in ways that do not work. Use some casts to keep gcc quiet. Signed-off-by: Jan Beulich Signed-off-by: Tony Luck --- arch/ia64/kernel/perfmon.c | 2 +- arch/ia64/kernel/salinfo.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index abce2468a40..f1782705b1f 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -5603,7 +5603,7 @@ pfm_interrupt_handler(int irq, void *arg) * /proc/perfmon interface, for debug only */ -#define PFM_PROC_SHOW_HEADER ((void *)nr_cpu_ids+1) +#define PFM_PROC_SHOW_HEADER ((void *)(long)nr_cpu_ids+1) static void * pfm_proc_start(struct seq_file *m, loff_t *pos) diff --git a/arch/ia64/kernel/salinfo.c b/arch/ia64/kernel/salinfo.c index 7053c55b764..e6676fca482 100644 --- a/arch/ia64/kernel/salinfo.c +++ b/arch/ia64/kernel/salinfo.c @@ -192,7 +192,7 @@ struct salinfo_platform_oemdata_parms { static void salinfo_work_to_do(struct salinfo_data *data) { - down_trylock(&data->mutex); + (void)(down_trylock(&data->mutex) ?: 0); up(&data->mutex); } -- cgit v1.2.3 From fadfd2b6ba8838a6cc458dbae214993a177a3ee9 Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Tue, 30 Jun 2009 14:28:54 -0700 Subject: Add Fenghua Yu as temporary co-maintainer for ia64 I'm taking my sabbatical from Intel for July/August 2009. Fenghua Yu will handle ia64 architecture while I'm gone. Signed-off-by: Tony Luck --- MAINTAINERS | 2 ++ 1 file changed, 2 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 05a9a563042..f3bbc759360 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2851,7 +2851,9 @@ S: Maintained IA64 (Itanium) PLATFORM P: Tony Luck +P: Fenghua Yu M: tony.luck@intel.com +M: fenghua.yu@intel.com L: linux-ia64@vger.kernel.org W: http://www.ia64-linux.org/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6.git -- cgit v1.2.3 From 9e314996e3dc5189b9b36dce67088e882e989897 Mon Sep 17 00:00:00 2001 From: Mike Galbraith Date: Tue, 30 Jun 2009 15:00:20 +0200 Subject: x86: Fix symbol annotation for arch/x86/lib/clear_page_64.S::clear_page_c Noticed the zero-sized function symbol while looking at 'perf' profiles, it causes the profiler to display those addresses in hexa. Turns out that this was wrong/bogus for an eternity. Signed-off-by: Mike Galbraith Acked-by: Alexander van Heukelum Acked-by: Cyrill Gorcunov LKML-Reference: <1246366820.6538.1.camel@marge.simson.net> Signed-off-by: Ingo Molnar --- arch/x86/lib/clear_page_64.S | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/x86/lib/clear_page_64.S b/arch/x86/lib/clear_page_64.S index 9a10a78bb4a..ebeafcce04a 100644 --- a/arch/x86/lib/clear_page_64.S +++ b/arch/x86/lib/clear_page_64.S @@ -5,15 +5,14 @@ * Zero a page. * rdi page */ - ALIGN -clear_page_c: +ENTRY(clear_page_c) CFI_STARTPROC movl $4096/8,%ecx xorl %eax,%eax rep stosq ret CFI_ENDPROC -ENDPROC(clear_page) +ENDPROC(clear_page_c) ENTRY(clear_page) CFI_STARTPROC -- cgit v1.2.3 From 25903407da21552419e0955705d6d8c8e601cb2e Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 30 Jun 2009 19:01:20 -0300 Subject: perf report: Add --dsos parameter So that we can filter by dso. Symbols in other dsos won't be accounted for. Signed-off-by: Arnaldo Carvalho de Melo Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Paul Mackerras LKML-Reference: <1246399282-20934-2-git-send-email-acme@redhat.com> Signed-off-by: Ingo Molnar --- tools/perf/Documentation/perf-report.txt | 4 + tools/perf/Makefile | 2 + tools/perf/builtin-report.c | 16 +++ tools/perf/util/strlist.c | 184 +++++++++++++++++++++++++++++++ tools/perf/util/strlist.h | 32 ++++++ 5 files changed, 238 insertions(+) create mode 100644 tools/perf/util/strlist.c create mode 100644 tools/perf/util/strlist.h diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt index 40c1db83a16..13d85ca8c91 100644 --- a/tools/perf/Documentation/perf-report.txt +++ b/tools/perf/Documentation/perf-report.txt @@ -20,6 +20,10 @@ OPTIONS -i:: --input=:: Input file name. (default: perf.data) +-d:: +--dsos=:: + Only consider symbols in these dsos. CSV that understands + file://filename entries. SEE ALSO -------- diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 1c1296d8a64..9c6d0ae3708 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -301,6 +301,7 @@ LIB_H += util/util.h LIB_H += util/help.h LIB_H += util/strbuf.h LIB_H += util/string.h +LIB_H += util/strlist.h LIB_H += util/run-command.h LIB_H += util/sigchain.h LIB_H += util/symbol.h @@ -322,6 +323,7 @@ LIB_OBJS += util/run-command.o LIB_OBJS += util/quote.o LIB_OBJS += util/strbuf.o LIB_OBJS += util/string.o +LIB_OBJS += util/strlist.o LIB_OBJS += util/usage.o LIB_OBJS += util/wrapper.o LIB_OBJS += util/sigchain.o diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index ed391db9e0f..7c6b6e77671 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -16,6 +16,7 @@ #include "util/symbol.h" #include "util/string.h" #include "util/callchain.h" +#include "util/strlist.h" #include "perf.h" #include "util/header.h" @@ -32,6 +33,8 @@ static char *vmlinux = NULL; static char default_sort_order[] = "comm,dso"; static char *sort_order = default_sort_order; +static char *dso_list_str; +static struct strlist *dso_list; static int input; static int show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV; @@ -1272,6 +1275,9 @@ process_sample_event(event_t *event, unsigned long offset, unsigned long head) if (show & show_mask) { struct symbol *sym = resolve_symbol(thread, &map, &dso, &ip); + if (dso_list && dso && dso->name && !strlist__has_entry(dso_list, dso->name)) + return 0; + if (hist_entry__add(thread, map, dso, sym, ip, chain, level, period)) { eprintf("problem incrementing symbol count, skipping event\n"); return -1; @@ -1659,6 +1665,8 @@ static const struct option options[] = { OPT_BOOLEAN('x', "exclude-other", &exclude_other, "Only display entries with parent-match"), OPT_BOOLEAN('c', "callchain", &callchain, "Display callchains"), + OPT_STRING('d', "dsos", &dso_list_str, "dso[,dso...]", + "only consider symbols in these dsos"), OPT_END() }; @@ -1698,6 +1706,14 @@ int cmd_report(int argc, const char **argv, const char *prefix) if (argc) usage_with_options(report_usage, options); + if (dso_list_str) { + dso_list = strlist__new(true, dso_list_str); + if (!dso_list) { + fprintf(stderr, "problems parsing dso list\n"); + exit(129); + } + } + setup_pager(); return __cmd_report(); diff --git a/tools/perf/util/strlist.c b/tools/perf/util/strlist.c new file mode 100644 index 00000000000..025a78edfff --- /dev/null +++ b/tools/perf/util/strlist.c @@ -0,0 +1,184 @@ +/* + * (c) 2009 Arnaldo Carvalho de Melo + * + * Licensed under the GPLv2. + */ + +#include "strlist.h" +#include +#include +#include +#include + +static struct str_node *str_node__new(const char *s, bool dupstr) +{ + struct str_node *self = malloc(sizeof(*self)); + + if (self != NULL) { + if (dupstr) { + s = strdup(s); + if (s == NULL) + goto out_delete; + } + self->s = s; + } + + return self; + +out_delete: + free(self); + return NULL; +} + +static void str_node__delete(struct str_node *self, bool dupstr) +{ + if (dupstr) + free((void *)self->s); + free(self); +} + +int strlist__add(struct strlist *self, const char *new_entry) +{ + struct rb_node **p = &self->entries.rb_node; + struct rb_node *parent = NULL; + struct str_node *sn; + + while (*p != NULL) { + int rc; + + parent = *p; + sn = rb_entry(parent, struct str_node, rb_node); + rc = strcmp(sn->s, new_entry); + + if (rc > 0) + p = &(*p)->rb_left; + else if (rc < 0) + p = &(*p)->rb_right; + else + return -EEXIST; + } + + sn = str_node__new(new_entry, self->dupstr); + if (sn == NULL) + return -ENOMEM; + + rb_link_node(&sn->rb_node, parent, p); + rb_insert_color(&sn->rb_node, &self->entries); + + return 0; +} + +int strlist__load(struct strlist *self, const char *filename) +{ + char entry[1024]; + int err; + FILE *fp = fopen(filename, "r"); + + if (fp == NULL) + return errno; + + while (fgets(entry, sizeof(entry), fp) != NULL) { + const size_t len = strlen(entry); + + if (len == 0) + continue; + entry[len - 1] = '\0'; + + err = strlist__add(self, entry); + if (err != 0) + goto out; + } + + err = 0; +out: + fclose(fp); + return err; +} + +void strlist__remove(struct strlist *self, struct str_node *sn) +{ + rb_erase(&sn->rb_node, &self->entries); + str_node__delete(sn, self->dupstr); +} + +bool strlist__has_entry(struct strlist *self, const char *entry) +{ + struct rb_node **p = &self->entries.rb_node; + struct rb_node *parent = NULL; + + while (*p != NULL) { + struct str_node *sn; + int rc; + + parent = *p; + sn = rb_entry(parent, struct str_node, rb_node); + rc = strcmp(sn->s, entry); + + if (rc > 0) + p = &(*p)->rb_left; + else if (rc < 0) + p = &(*p)->rb_right; + else + return true; + } + + return false; +} + +static int strlist__parse_list_entry(struct strlist *self, const char *s) +{ + if (strncmp(s, "file://", 7) == 0) + return strlist__load(self, s + 7); + + return strlist__add(self, s); +} + +int strlist__parse_list(struct strlist *self, const char *s) +{ + char *sep; + int err; + + while ((sep = strchr(s, ',')) != NULL) { + *sep = '\0'; + err = strlist__parse_list_entry(self, s); + *sep = ','; + if (err != 0) + return err; + s = sep + 1; + } + + return *s ? strlist__parse_list_entry(self, s) : 0; +} + +struct strlist *strlist__new(bool dupstr, const char *slist) +{ + struct strlist *self = malloc(sizeof(*self)); + + if (self != NULL) { + self->entries = RB_ROOT; + self->dupstr = dupstr; + if (slist && strlist__parse_list(self, slist) != 0) + goto out_error; + } + + return self; +out_error: + free(self); + return NULL; +} + +void strlist__delete(struct strlist *self) +{ + if (self != NULL) { + struct str_node *pos; + struct rb_node *next = rb_first(&self->entries); + + while (next) { + pos = rb_entry(next, struct str_node, rb_node); + next = rb_next(&pos->rb_node); + strlist__remove(self, pos); + } + self->entries = RB_ROOT; + free(self); + } +} diff --git a/tools/perf/util/strlist.h b/tools/perf/util/strlist.h new file mode 100644 index 00000000000..2fb117fb4b6 --- /dev/null +++ b/tools/perf/util/strlist.h @@ -0,0 +1,32 @@ +#ifndef STRLIST_H_ +#define STRLIST_H_ + +#include "rbtree.h" +#include + +struct str_node { + struct rb_node rb_node; + const char *s; +}; + +struct strlist { + struct rb_root entries; + bool dupstr; +}; + +struct strlist *strlist__new(bool dupstr, const char *slist); +void strlist__delete(struct strlist *self); + +void strlist__remove(struct strlist *self, struct str_node *sn); +int strlist__load(struct strlist *self, const char *filename); +int strlist__add(struct strlist *self, const char *str); + +bool strlist__has_entry(struct strlist *self, const char *entry); + +static inline bool strlist__empty(const struct strlist *self) +{ + return rb_first(&self->entries) == NULL; +} + +int strlist__parse_list(struct strlist *self, const char *s); +#endif /* STRLIST_H_ */ -- cgit v1.2.3 From cc8b88b15ab8e5ae162a46c4b6b286b555190dd1 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 30 Jun 2009 19:01:21 -0300 Subject: perf report: Add --comms parameter So that we can filter by comm. Symbols in other comms won't be accounted for. Signed-off-by: Arnaldo Carvalho de Melo Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Paul Mackerras LKML-Reference: <1246399282-20934-3-git-send-email-acme@redhat.com> Signed-off-by: Ingo Molnar --- tools/perf/Documentation/perf-report.txt | 4 ++++ tools/perf/builtin-report.c | 33 ++++++++++++++++++++++---------- 2 files changed, 27 insertions(+), 10 deletions(-) diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt index 13d85ca8c91..4c44ef1747b 100644 --- a/tools/perf/Documentation/perf-report.txt +++ b/tools/perf/Documentation/perf-report.txt @@ -24,6 +24,10 @@ OPTIONS --dsos=:: Only consider symbols in these dsos. CSV that understands file://filename entries. +-C:: +--comms=:: + Only consider symbols in these comms. CSV that understands + file://filename entries. SEE ALSO -------- diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 7c6b6e77671..8143477b7ef 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -33,8 +33,8 @@ static char *vmlinux = NULL; static char default_sort_order[] = "comm,dso"; static char *sort_order = default_sort_order; -static char *dso_list_str; -static struct strlist *dso_list; +static char *dso_list_str, *comm_list_str; +static struct strlist *dso_list, *comm_list; static int input; static int show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV; @@ -240,7 +240,7 @@ static u64 vdso__map_ip(struct map *map, u64 ip) static inline int is_anon_memory(const char *filename) { - return strcmp(filename, "//anon") == 0; + return strcmp(filename, "//anon") == 0; } static struct map *map__new(struct mmap_event *event) @@ -1253,6 +1253,9 @@ process_sample_event(event_t *event, unsigned long offset, unsigned long head) return -1; } + if (comm_list && !strlist__has_entry(comm_list, thread->comm)) + return 0; + if (event->header.misc & PERF_EVENT_MISC_KERNEL) { show = SHOW_KERNEL; level = 'k'; @@ -1667,6 +1670,8 @@ static const struct option options[] = { OPT_BOOLEAN('c', "callchain", &callchain, "Display callchains"), OPT_STRING('d', "dsos", &dso_list_str, "dso[,dso...]", "only consider symbols in these dsos"), + OPT_STRING('C', "comms", &comm_list_str, "comm[,comm...]", + "only consider symbols in these comms"), OPT_END() }; @@ -1685,6 +1690,19 @@ static void setup_sorting(void) free(str); } +static void setup_list(struct strlist **list, const char *list_str, + const char *list_name) +{ + if (list_str) { + *list = strlist__new(true, list_str); + if (!*list) { + fprintf(stderr, "problems parsing %s list\n", + list_name); + exit(129); + } + } +} + int cmd_report(int argc, const char **argv, const char *prefix) { symbol__init(); @@ -1706,13 +1724,8 @@ int cmd_report(int argc, const char **argv, const char *prefix) if (argc) usage_with_options(report_usage, options); - if (dso_list_str) { - dso_list = strlist__new(true, dso_list_str); - if (!dso_list) { - fprintf(stderr, "problems parsing dso list\n"); - exit(129); - } - } + setup_list(&dso_list, dso_list_str, "dso"); + setup_list(&comm_list, comm_list_str, "comm"); setup_pager(); -- cgit v1.2.3 From 7bec7a9134c25cecb0d7029199b59f7b1bef35b8 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 30 Jun 2009 19:01:22 -0300 Subject: perf report: Add --symbols parameter So that we can filter by symbol name. The 'pfunct' utility in the 'dwarves' package can be used to create a file with the functions one wants. Example: [acme@doppio pahole]$ pfunct /usr/lib/debug/usr/lib64/libdw-0.141.so.debug | grep dwarf > /tmp/dwarf.symbols [acme@doppio pahole]$ wc -l /tmp/dwarf.symbols 93 /tmp/dwarf.symbols [acme@doppio pahole]$ head -3 /tmp/dwarf.symbols dwfl_addrdwarf dwfl_module_getdwarf dwfl_getdwarf [acme@doppio pahole]$ perf report --sort comm,dso,symbol --comms pahole --dsos /usr/lib64/libdw-0.141.so --symbols file:///tmp/dwarf.symbols 33.99% pahole /usr/lib64/libdw-0.141.so [.] dwarf_tag 29.07% pahole /usr/lib64/libdw-0.141.so [.] dwarf_decl_file 27.71% pahole /usr/lib64/libdw-0.141.so [.] dwarf_getsrclines 4.54% pahole /usr/lib64/libdw-0.141.so 0x00000000007400 3.93% pahole /usr/lib64/libdw-0.141.so [.] dwarf_decl_line 0.46% pahole /usr/lib64/libdw-0.141.so [.] dwarf_getlocation 0.18% pahole /usr/lib64/libdw-0.141.so [.] __libdwarf_next_prime 0.13% pahole /usr/lib64/libdw-0.141.so [.] dwarf_diecu [acme@doppio pahole]$ Signed-off-by: Arnaldo Carvalho de Melo Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Paul Mackerras LKML-Reference: <1246399282-20934-4-git-send-email-acme@redhat.com> Signed-off-by: Ingo Molnar --- tools/perf/Documentation/perf-report.txt | 4 ++++ tools/perf/builtin-report.c | 10 ++++++++-- 2 files changed, 12 insertions(+), 2 deletions(-) diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt index 4c44ef1747b..8aa3f8c8870 100644 --- a/tools/perf/Documentation/perf-report.txt +++ b/tools/perf/Documentation/perf-report.txt @@ -28,6 +28,10 @@ OPTIONS --comms=:: Only consider symbols in these comms. CSV that understands file://filename entries. +-S:: +--symbols=:: + Only consider these symbols. CSV that understands + file://filename entries. SEE ALSO -------- diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 8143477b7ef..135b7837e6b 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -33,8 +33,8 @@ static char *vmlinux = NULL; static char default_sort_order[] = "comm,dso"; static char *sort_order = default_sort_order; -static char *dso_list_str, *comm_list_str; -static struct strlist *dso_list, *comm_list; +static char *dso_list_str, *comm_list_str, *sym_list_str; +static struct strlist *dso_list, *comm_list, *sym_list; static int input; static int show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV; @@ -1281,6 +1281,9 @@ process_sample_event(event_t *event, unsigned long offset, unsigned long head) if (dso_list && dso && dso->name && !strlist__has_entry(dso_list, dso->name)) return 0; + if (sym_list && sym && !strlist__has_entry(sym_list, sym->name)) + return 0; + if (hist_entry__add(thread, map, dso, sym, ip, chain, level, period)) { eprintf("problem incrementing symbol count, skipping event\n"); return -1; @@ -1672,6 +1675,8 @@ static const struct option options[] = { "only consider symbols in these dsos"), OPT_STRING('C', "comms", &comm_list_str, "comm[,comm...]", "only consider symbols in these comms"), + OPT_STRING('S', "symbols", &sym_list_str, "symbol[,symbol...]", + "only consider these symbols"), OPT_END() }; @@ -1726,6 +1731,7 @@ int cmd_report(int argc, const char **argv, const char *prefix) setup_list(&dso_list, dso_list_str, "dso"); setup_list(&comm_list, comm_list_str, "comm"); + setup_list(&sym_list, sym_list_str, "symbol"); setup_pager(); -- cgit v1.2.3 From 789d03f584484af85dbdc64935270c8e45f36ef7 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Tue, 30 Jun 2009 11:52:23 +0100 Subject: x86: Fix fixmap ordering The merge of the 32- and 64-bit fixmap headers made a latent bug on x86-64 a real one: with the right config settings it is possible for FIX_OHCI1394_BASE to overlap the FIX_BTMAP_* range. Signed-off-by: Jan Beulich Cc: # for 2.6.30.x LKML-Reference: <4A4A0A8702000078000082E8@vpn.id2.novell.com> Signed-off-by: Ingo Molnar --- arch/x86/include/asm/fixmap.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/x86/include/asm/fixmap.h b/arch/x86/include/asm/fixmap.h index 2d81af3974a..3eb0f79a532 100644 --- a/arch/x86/include/asm/fixmap.h +++ b/arch/x86/include/asm/fixmap.h @@ -114,9 +114,6 @@ enum fixed_addresses { FIX_TEXT_POKE0, /* reserve 2 pages for text_poke() */ FIX_TEXT_POKE1, __end_of_permanent_fixed_addresses, -#ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT - FIX_OHCI1394_BASE, -#endif /* * 256 temporary boot-time mappings, used by early_ioremap(), * before ioremap() is functional. @@ -129,6 +126,9 @@ enum fixed_addresses { FIX_BTMAP_END = __end_of_permanent_fixed_addresses + 256 - (__end_of_permanent_fixed_addresses & 255), FIX_BTMAP_BEGIN = FIX_BTMAP_END + NR_FIX_BTMAPS*FIX_BTMAPS_SLOTS - 1, +#ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT + FIX_OHCI1394_BASE, +#endif #ifdef CONFIG_X86_32 FIX_WP_TEST, #endif -- cgit v1.2.3 From 04a820ead0838c76e9c1242feb5e71048bf3e9dc Mon Sep 17 00:00:00 2001 From: Andres Salomon Date: Tue, 30 Jun 2009 02:14:00 -0400 Subject: olpc_battery: Fix up eeprom read function The eeprom read function was placing values into the wrong place in 'buf'; we were starting from buf[off], rather than buf[0]. Also, the for loop that we were using was much uglier than it needed to be. This cleans it up a bit. Signed-off-by: Andres Salomon Signed-off-by: Anton Vorontsov --- drivers/power/olpc_battery.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/drivers/power/olpc_battery.c b/drivers/power/olpc_battery.c index 5fbca2681ba..9c216dd4155 100644 --- a/drivers/power/olpc_battery.c +++ b/drivers/power/olpc_battery.c @@ -8,6 +8,7 @@ * published by the Free Software Foundation. */ +#include #include #include #include @@ -334,21 +335,21 @@ static ssize_t olpc_bat_eeprom_read(struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t off, size_t count) { uint8_t ec_byte; - int ret, end; + int ret; + int i; if (off >= EEPROM_SIZE) return 0; if (off + count > EEPROM_SIZE) count = EEPROM_SIZE - off; - end = EEPROM_START + off + count; - for (ec_byte = EEPROM_START + off; ec_byte < end; ec_byte++) { - ret = olpc_ec_cmd(EC_BAT_EEPROM, &ec_byte, 1, - &buf[ec_byte - EEPROM_START], 1); + for (i = 0; i < count; i++) { + ec_byte = EEPROM_START + off + i; + ret = olpc_ec_cmd(EC_BAT_EEPROM, &ec_byte, 1, &buf[i], 1); if (ret) { - printk(KERN_ERR "olpc-battery: EC command " - "EC_BAT_EEPROM @ 0x%x failed -" - " %d!\n", ec_byte, ret); + pr_err("olpc-battery: " + "EC_BAT_EEPROM cmd @ 0x%x failed - %d!\n", + ec_byte, ret); return -EIO; } } -- cgit v1.2.3 From 8f7e57985fa794ab6afdcd3642581d9e1fe6de31 Mon Sep 17 00:00:00 2001 From: Andres Salomon Date: Tue, 30 Jun 2009 02:16:17 -0400 Subject: olpc_battery: Ensure that the TRICKLE bit is checked There are times when the battery is present but trickle charging, and the EC sets only the TRICKLE bit. So we must check for the bit when we're checking the charging/present status. Signed-off-by: Andres Salomon Signed-off-by: Anton Vorontsov --- drivers/power/olpc_battery.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/power/olpc_battery.c b/drivers/power/olpc_battery.c index 9c216dd4155..58e419299cd 100644 --- a/drivers/power/olpc_battery.c +++ b/drivers/power/olpc_battery.c @@ -36,6 +36,7 @@ #define BAT_STAT_AC 0x10 #define BAT_STAT_CHARGING 0x20 #define BAT_STAT_DISCHARGING 0x40 +#define BAT_STAT_TRICKLE 0x80 #define BAT_ERR_INFOFAIL 0x02 #define BAT_ERR_OVERVOLTAGE 0x04 @@ -90,7 +91,7 @@ static char bat_serial[17]; /* Ick */ static int olpc_bat_get_status(union power_supply_propval *val, uint8_t ec_byte) { if (olpc_platform_info.ecver > 0x44) { - if (ec_byte & BAT_STAT_CHARGING) + if (ec_byte & (BAT_STAT_CHARGING | BAT_STAT_TRICKLE)) val->intval = POWER_SUPPLY_STATUS_CHARGING; else if (ec_byte & BAT_STAT_DISCHARGING) val->intval = POWER_SUPPLY_STATUS_DISCHARGING; @@ -220,7 +221,8 @@ static int olpc_bat_get_property(struct power_supply *psy, It doesn't matter though -- the EC will return the last-known information, and it's as if we just ran that _little_ bit faster and managed to read it out before the battery went away. */ - if (!(ec_byte & BAT_STAT_PRESENT) && psp != POWER_SUPPLY_PROP_PRESENT) + if (!(ec_byte & (BAT_STAT_PRESENT | BAT_STAT_TRICKLE)) && + psp != POWER_SUPPLY_PROP_PRESENT) return -ENODEV; switch (psp) { @@ -230,7 +232,8 @@ static int olpc_bat_get_property(struct power_supply *psy, return ret; break; case POWER_SUPPLY_PROP_PRESENT: - val->intval = !!(ec_byte & BAT_STAT_PRESENT); + val->intval = !!(ec_byte & (BAT_STAT_PRESENT | + BAT_STAT_TRICKLE)); break; case POWER_SUPPLY_PROP_HEALTH: -- cgit v1.2.3 From bfdb46ce8494eae30dbaae65c81e684e6db6228b Mon Sep 17 00:00:00 2001 From: Ryan Mallon Date: Thu, 18 Jun 2009 11:26:26 +1200 Subject: Add ds2782 battery gas gauge driver This patch adds a driver for ds2782 battery devices. Signed-off-by: Ryan Mallon Signed-off-by: Anton Vorontsov --- drivers/power/Kconfig | 7 + drivers/power/Makefile | 1 + drivers/power/ds2782_battery.c | 330 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 338 insertions(+) create mode 100644 drivers/power/ds2782_battery.c diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig index 7eda34838bf..bdbc4f73fcd 100644 --- a/drivers/power/Kconfig +++ b/drivers/power/Kconfig @@ -43,6 +43,13 @@ config BATTERY_DS2760 help Say Y here to enable support for batteries with ds2760 chip. +config BATTERY_DS2782 + tristate "DS2782 standalone gas-gauge" + depends on I2C + help + Say Y here to enable support for the DS2782 standalone battery + gas-gauge. + config BATTERY_PMU tristate "Apple PMU battery" depends on PPC32 && ADB_PMU diff --git a/drivers/power/Makefile b/drivers/power/Makefile index daf3179689a..380d17c9ae2 100644 --- a/drivers/power/Makefile +++ b/drivers/power/Makefile @@ -19,6 +19,7 @@ obj-$(CONFIG_APM_POWER) += apm_power.o obj-$(CONFIG_WM8350_POWER) += wm8350_power.o obj-$(CONFIG_BATTERY_DS2760) += ds2760_battery.o +obj-$(CONFIG_BATTERY_DS2782) += ds2782_battery.o obj-$(CONFIG_BATTERY_PMU) += pmu_battery.o obj-$(CONFIG_BATTERY_OLPC) += olpc_battery.o obj-$(CONFIG_BATTERY_TOSA) += tosa_battery.o diff --git a/drivers/power/ds2782_battery.c b/drivers/power/ds2782_battery.c new file mode 100644 index 00000000000..da14f374cb6 --- /dev/null +++ b/drivers/power/ds2782_battery.c @@ -0,0 +1,330 @@ +/* + * I2C client/driver for the Maxim/Dallas DS2782 Stand-Alone Fuel Gauge IC + * + * Copyright (C) 2009 Bluewater Systems Ltd + * + * Author: Ryan Mallon + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#define DS2782_REG_RARC 0x06 /* Remaining active relative capacity */ + +#define DS2782_REG_VOLT_MSB 0x0c +#define DS2782_REG_TEMP_MSB 0x0a +#define DS2782_REG_CURRENT_MSB 0x0e + +/* EEPROM Block */ +#define DS2782_REG_RSNSP 0x69 /* Sense resistor value */ + +/* Current unit measurement in uA for a 1 milli-ohm sense resistor */ +#define DS2782_CURRENT_UNITS 1563 + +#define to_ds2782_info(x) container_of(x, struct ds2782_info, battery) + +struct ds2782_info { + struct i2c_client *client; + struct power_supply battery; + int id; +}; + +static DEFINE_IDR(battery_id); +static DEFINE_MUTEX(battery_lock); + +static inline int ds2782_read_reg(struct ds2782_info *info, int reg, u8 *val) +{ + int ret; + + ret = i2c_smbus_read_byte_data(info->client, reg); + if (ret < 0) { + dev_err(&info->client->dev, "register read failed\n"); + return ret; + } + + *val = ret; + return 0; +} + +static inline int ds2782_read_reg16(struct ds2782_info *info, int reg_msb, + s16 *val) +{ + int ret; + + ret = swab16(i2c_smbus_read_word_data(info->client, reg_msb)); + if (ret < 0) { + dev_err(&info->client->dev, "register read failed\n"); + return ret; + } + + *val = ret; + return 0; +} + +static int ds2782_get_temp(struct ds2782_info *info, int *temp) +{ + s16 raw; + int err; + + /* + * Temperature is measured in units of 0.125 degrees celcius, the + * power_supply class measures temperature in tenths of degrees + * celsius. The temperature value is stored as a 10 bit number, plus + * sign in the upper bits of a 16 bit register. + */ + err = ds2782_read_reg16(info, DS2782_REG_TEMP_MSB, &raw); + if (err) + return err; + *temp = ((raw / 32) * 125) / 100; + return 0; +} + +static int ds2782_get_current(struct ds2782_info *info, int *current_uA) +{ + int sense_res; + int err; + u8 sense_res_raw; + s16 raw; + + /* + * The units of measurement for current are dependent on the value of + * the sense resistor. + */ + err = ds2782_read_reg(info, DS2782_REG_RSNSP, &sense_res_raw); + if (err) + return err; + if (sense_res_raw == 0) { + dev_err(&info->client->dev, "sense resistor value is 0\n"); + return -ENXIO; + } + sense_res = 1000 / sense_res_raw; + + dev_dbg(&info->client->dev, "sense resistor = %d milli-ohms\n", + sense_res); + err = ds2782_read_reg16(info, DS2782_REG_CURRENT_MSB, &raw); + if (err) + return err; + *current_uA = raw * (DS2782_CURRENT_UNITS / sense_res); + return 0; +} + +static int ds2782_get_voltage(struct ds2782_info *info, int *voltage_uA) +{ + s16 raw; + int err; + + /* + * Voltage is measured in units of 4.88mV. The voltage is stored as + * a 10-bit number plus sign, in the upper bits of a 16-bit register + */ + err = ds2782_read_reg16(info, DS2782_REG_VOLT_MSB, &raw); + if (err) + return err; + *voltage_uA = (raw / 32) * 4800; + return 0; +} + +static int ds2782_get_capacity(struct ds2782_info *info, int *capacity) +{ + int err; + u8 raw; + + err = ds2782_read_reg(info, DS2782_REG_RARC, &raw); + if (err) + return err; + *capacity = raw; + return raw; +} + +static int ds2782_get_status(struct ds2782_info *info, int *status) +{ + int err; + int current_uA; + int capacity; + + err = ds2782_get_current(info, ¤t_uA); + if (err) + return err; + + err = ds2782_get_capacity(info, &capacity); + if (err) + return err; + + if (capacity == 100) + *status = POWER_SUPPLY_STATUS_FULL; + else if (current_uA == 0) + *status = POWER_SUPPLY_STATUS_NOT_CHARGING; + else if (current_uA < 0) + *status = POWER_SUPPLY_STATUS_DISCHARGING; + else + *status = POWER_SUPPLY_STATUS_CHARGING; + + return 0; +} + +static int ds2782_battery_get_property(struct power_supply *psy, + enum power_supply_property prop, + union power_supply_propval *val) +{ + struct ds2782_info *info = to_ds2782_info(psy); + int ret; + + switch (prop) { + case POWER_SUPPLY_PROP_STATUS: + ret = ds2782_get_status(info, &val->intval); + break; + + case POWER_SUPPLY_PROP_CAPACITY: + ret = ds2782_get_capacity(info, &val->intval); + break; + + case POWER_SUPPLY_PROP_VOLTAGE_NOW: + ret = ds2782_get_voltage(info, &val->intval); + break; + + case POWER_SUPPLY_PROP_CURRENT_NOW: + ret = ds2782_get_current(info, &val->intval); + break; + + case POWER_SUPPLY_PROP_TEMP: + ret = ds2782_get_temp(info, &val->intval); + break; + + default: + ret = -EINVAL; + } + + return ret; +} + +static enum power_supply_property ds2782_battery_props[] = { + POWER_SUPPLY_PROP_STATUS, + POWER_SUPPLY_PROP_CAPACITY, + POWER_SUPPLY_PROP_VOLTAGE_NOW, + POWER_SUPPLY_PROP_CURRENT_NOW, + POWER_SUPPLY_PROP_TEMP, +}; + +static void ds2782_power_supply_init(struct power_supply *battery) +{ + battery->type = POWER_SUPPLY_TYPE_BATTERY; + battery->properties = ds2782_battery_props; + battery->num_properties = ARRAY_SIZE(ds2782_battery_props); + battery->get_property = ds2782_battery_get_property; + battery->external_power_changed = NULL; +} + +static int ds2782_battery_remove(struct i2c_client *client) +{ + struct ds2782_info *info = i2c_get_clientdata(client); + + power_supply_unregister(&info->battery); + kfree(info->battery.name); + + mutex_lock(&battery_lock); + idr_remove(&battery_id, info->id); + mutex_unlock(&battery_lock); + + i2c_set_clientdata(client, info); + + kfree(info); + return 0; +} + +static int ds2782_battery_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct ds2782_info *info; + int ret; + int num; + + /* Get an ID for this battery */ + ret = idr_pre_get(&battery_id, GFP_KERNEL); + if (ret == 0) { + ret = -ENOMEM; + goto fail_id; + } + + mutex_lock(&battery_lock); + ret = idr_get_new(&battery_id, client, &num); + mutex_unlock(&battery_lock); + if (ret < 0) + goto fail_id; + + info = kzalloc(sizeof(*info), GFP_KERNEL); + if (!info) { + ret = -ENOMEM; + goto fail_info; + } + + info->battery.name = kasprintf(GFP_KERNEL, "ds2782-%d", num); + if (!info->battery.name) { + ret = -ENOMEM; + goto fail_name; + } + + i2c_set_clientdata(client, info); + info->client = client; + ds2782_power_supply_init(&info->battery); + + ret = power_supply_register(&client->dev, &info->battery); + if (ret) { + dev_err(&client->dev, "failed to register battery\n"); + goto fail_register; + } + + return 0; + +fail_register: + kfree(info->battery.name); +fail_name: + i2c_set_clientdata(client, info); + kfree(info); +fail_info: + mutex_lock(&battery_lock); + idr_remove(&battery_id, num); + mutex_unlock(&battery_lock); +fail_id: + return ret; +} + +static const struct i2c_device_id ds2782_id[] = { + {"ds2782", 0}, + {}, +}; + +static struct i2c_driver ds2782_battery_driver = { + .driver = { + .name = "ds2782-battery", + }, + .probe = ds2782_battery_probe, + .remove = ds2782_battery_remove, + .id_table = ds2782_id, +}; + +static int __init ds2782_init(void) +{ + return i2c_add_driver(&ds2782_battery_driver); +} +module_init(ds2782_init); + +static void __exit ds2782_exit(void) +{ + i2c_del_driver(&ds2782_battery_driver); +} +module_exit(ds2782_exit); + +MODULE_AUTHOR("Ryan Mallon "); +MODULE_DESCRIPTION("Maxim/Dallas DS2782 Stand-Alone Fuel Gauage IC driver"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 1f208ea67821703fd4de056ea6f0baa81f4ad4a5 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Wed, 1 Jul 2009 09:00:44 +1000 Subject: perf report: Fix -z option Fix a copy and paste error, -z was setting the group option. Signed-off-by: Anton Blanchard Cc: a.p.zijlstra@chello.nl Cc: paulus@samba.org LKML-Reference: <20090630230140.714204656@samba.org> Signed-off-by: Ingo Molnar --- tools/perf/builtin-top.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index cf0d21f1ae1..5c2965562c5 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -675,7 +675,7 @@ static const struct option options[] = { "put the counters into a counter group"), OPT_STRING('s', "sym-filter", &sym_filter, "pattern", "only display symbols matchig this pattern"), - OPT_BOOLEAN('z', "zero", &group, + OPT_BOOLEAN('z', "zero", &zero, "zero history across updates"), OPT_INTEGER('F', "freq", &freq, "profile at this frequency"), -- cgit v1.2.3 From 6717534ddc328ae5cdf89f1ef802db83fc451f19 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Wed, 1 Jul 2009 09:00:45 +1000 Subject: perf_counter tools: Remove zlib dependency The zlib devel libraries may not be installed and since we aren't using zlib we may as well remove it. Signed-off-by: Anton Blanchard Cc: a.p.zijlstra@chello.nl Cc: paulus@samba.org LKML-Reference: <20090630230140.802078956@samba.org> Signed-off-by: Ingo Molnar --- tools/perf/Makefile | 6 ------ 1 file changed, 6 deletions(-) diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 9c6d0ae3708..f572c90f610 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -381,12 +381,6 @@ ifndef CC_LD_DYNPATH endif endif -ifdef ZLIB_PATH - BASIC_CFLAGS += -I$(ZLIB_PATH)/include - EXTLIBS += -L$(ZLIB_PATH)/$(lib) $(CC_LD_DYNPATH)$(ZLIB_PATH)/$(lib) -endif -EXTLIBS += -lz - ifdef NEEDS_SOCKET EXTLIBS += -lsocket endif -- cgit v1.2.3 From 2ab52083ffc057014e502cf3473adc41436922fa Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Wed, 1 Jul 2009 09:00:46 +1000 Subject: perf top: Move skip symbols to an array Move the list of symbols we skip into an array, making it easier to add new ones. Signed-off-by: Anton Blanchard Cc: a.p.zijlstra@chello.nl Cc: paulus@samba.org LKML-Reference: <20090630230140.904782938@samba.org> Signed-off-by: Ingo Molnar --- tools/perf/builtin-top.c | 24 +++++++++++++++++------- 1 file changed, 17 insertions(+), 7 deletions(-) diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 5c2965562c5..731ec6d79c1 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -286,11 +286,22 @@ static void *display_thread(void *arg) return NULL; } +/* Tag samples to be skipped. */ +char *skip_symbols[] = { + "default_idle", + "cpu_idle", + "enter_idle", + "exit_idle", + "mwait_idle", + NULL +}; + static int symbol_filter(struct dso *self, struct symbol *sym) { static int filter_match; struct sym_entry *syme; const char *name = sym->name; + int i; if (!strcmp(name, "_text") || !strcmp(name, "_etext") || @@ -302,13 +313,12 @@ static int symbol_filter(struct dso *self, struct symbol *sym) return 1; syme = dso__sym_priv(self, sym); - /* Tag samples to be skipped. */ - if (!strcmp("default_idle", name) || - !strcmp("cpu_idle", name) || - !strcmp("enter_idle", name) || - !strcmp("exit_idle", name) || - !strcmp("mwait_idle", name)) - syme->skip = 1; + for (i = 0; skip_symbols[i]; i++) { + if (!strcmp(skip_symbols[i], name)) { + syme->skip = 1; + break; + } + } if (filter_match == 1) { filter_end = sym->start; -- cgit v1.2.3 From 3a3393ef75a14ae259a82f3f38624efa17884168 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Wed, 1 Jul 2009 09:00:47 +1000 Subject: perf top: Add ppc64 specific skip symbols and strip ppc64 . prefix Filter out some ppc64 specific idle loop functions and remove leading '.' on ppc64 text symbols. Signed-off-by: Anton Blanchard Cc: a.p.zijlstra@chello.nl Cc: paulus@samba.org LKML-Reference: <20090630230140.995643441@samba.org> Signed-off-by: Ingo Molnar --- tools/perf/builtin-top.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 731ec6d79c1..0506cd6e04c 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -293,6 +293,8 @@ char *skip_symbols[] = { "enter_idle", "exit_idle", "mwait_idle", + "ppc64_runlatch_off", + "pseries_dedicated_idle_sleep", NULL }; @@ -303,6 +305,13 @@ static int symbol_filter(struct dso *self, struct symbol *sym) const char *name = sym->name; int i; + /* + * ppc64 uses function descriptors and appends a '.' to the + * start of every instruction address. Remove it. + */ + if (name[0] == '.') + name++; + if (!strcmp(name, "_text") || !strcmp(name, "_etext") || !strcmp(name, "_sinittext") || -- cgit v1.2.3 From d8db1b57d31a6b30ea2f0df318eab50fc92b38d6 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Wed, 1 Jul 2009 09:00:48 +1000 Subject: perf report: Fix reporting of hypervisor PERF_EVENT_MISC_* is not a bitmask, so we have to mask and compare. Signed-off-by: Anton Blanchard Cc: a.p.zijlstra@chello.nl Cc: paulus@samba.org LKML-Reference: <20090630230141.088394681@samba.org> Signed-off-by: Ingo Molnar --- tools/perf/builtin-report.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 135b7837e6b..88e88c510ae 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -1213,6 +1213,7 @@ process_sample_event(event_t *event, unsigned long offset, unsigned long head) struct map *map = NULL; void *more_data = event->ip.__more_data; struct ip_callchain *chain = NULL; + int cpumode; if (sample_type & PERF_SAMPLE_PERIOD) { period = *(u64 *)more_data; @@ -1256,7 +1257,9 @@ process_sample_event(event_t *event, unsigned long offset, unsigned long head) if (comm_list && !strlist__has_entry(comm_list, thread->comm)) return 0; - if (event->header.misc & PERF_EVENT_MISC_KERNEL) { + cpumode = event->header.misc & PERF_EVENT_MISC_CPUMODE_MASK; + + if (cpumode == PERF_EVENT_MISC_KERNEL) { show = SHOW_KERNEL; level = 'k'; @@ -1264,7 +1267,7 @@ process_sample_event(event_t *event, unsigned long offset, unsigned long head) dprintf(" ...... dso: %s\n", dso->name); - } else if (event->header.misc & PERF_EVENT_MISC_USER) { + } else if (cpumode == PERF_EVENT_MISC_USER) { show = SHOW_USER; level = '.'; -- cgit v1.2.3 From fb9c818873a788c5c01c9868cc6050df96e2c7df Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Wed, 1 Jul 2009 09:00:49 +1000 Subject: perf report: Add hypervisor dso Add a dso for hypervisor samples. We don't get any symbol information on the ppc64 hypervisor but this at least gives us a high level summary of the time spent in there. Signed-off-by: Anton Blanchard Cc: a.p.zijlstra@chello.nl Cc: paulus@samba.org LKML-Reference: <20090630230141.182536873@samba.org> Signed-off-by: Ingo Molnar --- tools/perf/builtin-report.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 88e88c510ae..3f5d8ea05ff 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -121,6 +121,7 @@ typedef union event_union { static LIST_HEAD(dsos); static struct dso *kernel_dso; static struct dso *vdso; +static struct dso *hypervisor_dso; static void dsos__add(struct dso *dso) { @@ -202,6 +203,11 @@ static int load_kernel(void) dsos__add(vdso); + hypervisor_dso = dso__new("[hypervisor]", 0); + if (!hypervisor_dso) + return -1; + dsos__add(hypervisor_dso); + return err; } @@ -640,7 +646,8 @@ sort__sym_print(FILE *fp, struct hist_entry *self) if (self->sym) { ret += fprintf(fp, "[%c] %s", - self->dso == kernel_dso ? 'k' : '.', self->sym->name); + self->dso == kernel_dso ? 'k' : + self->dso == hypervisor_dso ? 'h' : '.', self->sym->name); } else { ret += fprintf(fp, "%#016llx", (u64)self->ip); } @@ -963,6 +970,9 @@ hist_entry__add(struct thread *thread, struct map *map, struct dso *dso, } switch (context) { + case PERF_CONTEXT_HV: + dso = hypervisor_dso; + break; case PERF_CONTEXT_KERNEL: dso = kernel_dso; break; @@ -1275,6 +1285,9 @@ process_sample_event(event_t *event, unsigned long offset, unsigned long head) } else { show = SHOW_HV; level = 'H'; + + dso = hypervisor_dso; + dprintf(" ...... dso: [hypervisor]\n"); } -- cgit v1.2.3 From 944c54e7fc5ccf961bef2b5449958436b85de459 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Wed, 1 Jul 2009 00:10:16 +0200 Subject: ia64/PCI: adjust section annotation for pcibios_setup() Should be __init. Acked-by: Tony Luck Signed-off-by: Jesse Barnes --- arch/ia64/pci/pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 729298f4b23..7de76dd352f 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c @@ -537,7 +537,7 @@ pcibios_align_resource (void *data, struct resource *res, /* * PCI BIOS setup, always defaults to SAL interface */ -char * __devinit +char * __init pcibios_setup (char *str) { return str; -- cgit v1.2.3 From 8f6c2e4b325a8e9f8f47febb2fd0ed4fae7d45a9 Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Wed, 1 Jul 2009 11:13:45 +1000 Subject: md: Use new topology calls to indicate alignment and I/O sizes Switch MD over to the new disk_stack_limits() function which checks for aligment and adjusts preferred I/O sizes when stacking. Also indicate preferred I/O sizes where applicable. Signed-off-by: Martin K. Petersen Signed-off-by: Mike Snitzer Signed-off-by: NeilBrown --- drivers/md/linear.c | 4 ++-- drivers/md/multipath.c | 7 ++++--- drivers/md/raid0.c | 9 +++++++-- drivers/md/raid1.c | 9 ++++----- drivers/md/raid10.c | 19 +++++++++++++------ drivers/md/raid5.c | 10 +++++++++- 6 files changed, 39 insertions(+), 19 deletions(-) diff --git a/drivers/md/linear.c b/drivers/md/linear.c index 15c8b7b25a9..5810fa906af 100644 --- a/drivers/md/linear.c +++ b/drivers/md/linear.c @@ -166,8 +166,8 @@ static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks) rdev->sectors = sectors * mddev->chunk_sectors; } - blk_queue_stack_limits(mddev->queue, - rdev->bdev->bd_disk->queue); + disk_stack_limits(mddev->gendisk, rdev->bdev, + rdev->data_offset << 9); /* as we don't honour merge_bvec_fn, we must never risk * violating it, so limit ->max_sector to one PAGE, as * a one page request is never in violation. diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c index cbe368fa659..237fe3fd235 100644 --- a/drivers/md/multipath.c +++ b/drivers/md/multipath.c @@ -294,7 +294,8 @@ static int multipath_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) for (path = first; path <= last; path++) if ((p=conf->multipaths+path)->rdev == NULL) { q = rdev->bdev->bd_disk->queue; - blk_queue_stack_limits(mddev->queue, q); + disk_stack_limits(mddev->gendisk, rdev->bdev, + rdev->data_offset << 9); /* as we don't honour merge_bvec_fn, we must never risk * violating it, so limit ->max_sector to one PAGE, as @@ -463,9 +464,9 @@ static int multipath_run (mddev_t *mddev) disk = conf->multipaths + disk_idx; disk->rdev = rdev; + disk_stack_limits(mddev->gendisk, rdev->bdev, + rdev->data_offset << 9); - blk_queue_stack_limits(mddev->queue, - rdev->bdev->bd_disk->queue); /* as we don't honour merge_bvec_fn, we must never risk * violating it, not that we ever expect a device with * a merge_bvec_fn to be involved in multipath */ diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index ab4a489d869..335f490dcad 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -170,8 +170,8 @@ static int create_strip_zones(mddev_t *mddev) } dev[j] = rdev1; - blk_queue_stack_limits(mddev->queue, - rdev1->bdev->bd_disk->queue); + disk_stack_limits(mddev->gendisk, rdev1->bdev, + rdev1->data_offset << 9); /* as we don't honour merge_bvec_fn, we must never risk * violating it, so limit ->max_sector to one PAGE, as * a one page request is never in violation. @@ -250,6 +250,11 @@ static int create_strip_zones(mddev_t *mddev) mddev->chunk_sectors << 9); goto abort; } + + blk_queue_io_min(mddev->queue, mddev->chunk_sectors << 9); + blk_queue_io_opt(mddev->queue, + (mddev->chunk_sectors << 9) * mddev->raid_disks); + printk(KERN_INFO "raid0: done.\n"); mddev->private = conf; return 0; diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 89939a7aef5..0569efba0c0 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1123,8 +1123,8 @@ static int raid1_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) for (mirror = first; mirror <= last; mirror++) if ( !(p=conf->mirrors+mirror)->rdev) { - blk_queue_stack_limits(mddev->queue, - rdev->bdev->bd_disk->queue); + disk_stack_limits(mddev->gendisk, rdev->bdev, + rdev->data_offset << 9); /* as we don't honour merge_bvec_fn, we must never risk * violating it, so limit ->max_sector to one PAGE, as * a one page request is never in violation. @@ -1988,9 +1988,8 @@ static int run(mddev_t *mddev) disk = conf->mirrors + disk_idx; disk->rdev = rdev; - - blk_queue_stack_limits(mddev->queue, - rdev->bdev->bd_disk->queue); + disk_stack_limits(mddev->gendisk, rdev->bdev, + rdev->data_offset << 9); /* as we don't honour merge_bvec_fn, we must never risk * violating it, so limit ->max_sector to one PAGE, as * a one page request is never in violation. diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index ae12ceafe10..7298a5e5a18 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1151,8 +1151,8 @@ static int raid10_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) for ( ; mirror <= last ; mirror++) if ( !(p=conf->mirrors+mirror)->rdev) { - blk_queue_stack_limits(mddev->queue, - rdev->bdev->bd_disk->queue); + disk_stack_limits(mddev->gendisk, rdev->bdev, + rdev->data_offset << 9); /* as we don't honour merge_bvec_fn, we must never risk * violating it, so limit ->max_sector to one PAGE, as * a one page request is never in violation. @@ -2044,7 +2044,7 @@ raid10_size(mddev_t *mddev, sector_t sectors, int raid_disks) static int run(mddev_t *mddev) { conf_t *conf; - int i, disk_idx; + int i, disk_idx, chunk_size; mirror_info_t *disk; mdk_rdev_t *rdev; int nc, fc, fo; @@ -2130,6 +2130,14 @@ static int run(mddev_t *mddev) spin_lock_init(&conf->device_lock); mddev->queue->queue_lock = &conf->device_lock; + chunk_size = mddev->chunk_sectors << 9; + blk_queue_io_min(mddev->queue, chunk_size); + if (conf->raid_disks % conf->near_copies) + blk_queue_io_opt(mddev->queue, chunk_size * conf->raid_disks); + else + blk_queue_io_opt(mddev->queue, chunk_size * + (conf->raid_disks / conf->near_copies)); + list_for_each_entry(rdev, &mddev->disks, same_set) { disk_idx = rdev->raid_disk; if (disk_idx >= mddev->raid_disks @@ -2138,9 +2146,8 @@ static int run(mddev_t *mddev) disk = conf->mirrors + disk_idx; disk->rdev = rdev; - - blk_queue_stack_limits(mddev->queue, - rdev->bdev->bd_disk->queue); + disk_stack_limits(mddev->gendisk, rdev->bdev, + rdev->data_offset << 9); /* as we don't honour merge_bvec_fn, we must never risk * violating it, so limit ->max_sector to one PAGE, as * a one page request is never in violation. diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index f9f991e6e13..92ef9b6abfc 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -4452,7 +4452,7 @@ static raid5_conf_t *setup_conf(mddev_t *mddev) static int run(mddev_t *mddev) { raid5_conf_t *conf; - int working_disks = 0; + int working_disks = 0, chunk_size; mdk_rdev_t *rdev; if (mddev->recovery_cp != MaxSector) @@ -4607,6 +4607,14 @@ static int run(mddev_t *mddev) md_set_array_sectors(mddev, raid5_size(mddev, 0, 0)); blk_queue_merge_bvec(mddev->queue, raid5_mergeable_bvec); + chunk_size = mddev->chunk_sectors << 9; + blk_queue_io_min(mddev->queue, chunk_size); + blk_queue_io_opt(mddev->queue, chunk_size * + (conf->raid_disks - conf->max_degraded)); + + list_for_each_entry(rdev, &mddev->disks, same_set) + disk_stack_limits(mddev->gendisk, rdev->bdev, + rdev->data_offset << 9); return 0; abort: -- cgit v1.2.3 From b8d966efd9a46a9a35beac50cbff6e30565125ef Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 1 Jul 2009 11:14:04 +1000 Subject: md: avoid dereferencing NULL pointer when accessing suspend_* sysfs attributes. If we try to modify one of the md/ sysfs files suspend_lo or suspend_hi when the array is not active, we dereference a NULL. Protect against that. Cc: stable@kernel.org Signed-off-by: NeilBrown --- drivers/md/md.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index 09be637d52c..2166af8a765 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -3573,7 +3573,8 @@ suspend_lo_store(mddev_t *mddev, const char *buf, size_t len) char *e; unsigned long long new = simple_strtoull(buf, &e, 10); - if (mddev->pers->quiesce == NULL) + if (mddev->pers == NULL || + mddev->pers->quiesce == NULL) return -EINVAL; if (buf == e || (*e && *e != '\n')) return -EINVAL; @@ -3601,7 +3602,8 @@ suspend_hi_store(mddev_t *mddev, const char *buf, size_t len) char *e; unsigned long long new = simple_strtoull(buf, &e, 10); - if (mddev->pers->quiesce == NULL) + if (mddev->pers == NULL || + mddev->pers->quiesce == NULL) return -EINVAL; if (buf == e || (*e && *e != '\n')) return -EINVAL; -- cgit v1.2.3 From 133890103b9de08904f909995973e4b5c08a780e Mon Sep 17 00:00:00 2001 From: Davide Libenzi Date: Tue, 30 Jun 2009 11:41:11 -0700 Subject: eventfd: revised interface and cleanups Change the eventfd interface to de-couple the eventfd memory context, from the file pointer instance. Without such change, there is no clean way to racely free handle the POLLHUP event sent when the last instance of the file* goes away. Also, now the internal eventfd APIs are using the eventfd context instead of the file*. This patch is required by KVM's IRQfd code, which is still under development. Signed-off-by: Davide Libenzi Cc: Gregory Haskins Cc: Rusty Russell Cc: Benjamin LaHaise Cc: Avi Kivity Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/lguest/lg.h | 2 +- drivers/lguest/lguest_user.c | 4 +- fs/aio.c | 24 +++------ fs/eventfd.c | 122 ++++++++++++++++++++++++++++++++++++++----- include/linux/aio.h | 4 +- include/linux/eventfd.h | 35 ++++++++++--- 6 files changed, 149 insertions(+), 42 deletions(-) diff --git a/drivers/lguest/lg.h b/drivers/lguest/lg.h index d4e8979735c..9c3138265f8 100644 --- a/drivers/lguest/lg.h +++ b/drivers/lguest/lg.h @@ -82,7 +82,7 @@ struct lg_cpu { struct lg_eventfd { unsigned long addr; - struct file *event; + struct eventfd_ctx *event; }; struct lg_eventfd_map { diff --git a/drivers/lguest/lguest_user.c b/drivers/lguest/lguest_user.c index 32e29712105..9f9a2953b38 100644 --- a/drivers/lguest/lguest_user.c +++ b/drivers/lguest/lguest_user.c @@ -50,7 +50,7 @@ static int add_eventfd(struct lguest *lg, unsigned long addr, int fd) /* Now append new entry. */ new->map[new->num].addr = addr; - new->map[new->num].event = eventfd_fget(fd); + new->map[new->num].event = eventfd_ctx_fdget(fd); if (IS_ERR(new->map[new->num].event)) { kfree(new); return PTR_ERR(new->map[new->num].event); @@ -357,7 +357,7 @@ static int close(struct inode *inode, struct file *file) /* Release any eventfds they registered. */ for (i = 0; i < lg->eventfds->num; i++) - fput(lg->eventfds->map[i].event); + eventfd_ctx_put(lg->eventfds->map[i].event); kfree(lg->eventfds); /* If lg->dead doesn't contain an error code it will be NULL or a diff --git a/fs/aio.c b/fs/aio.c index 76da1253795..d065b2c3273 100644 --- a/fs/aio.c +++ b/fs/aio.c @@ -485,6 +485,8 @@ static inline void really_put_req(struct kioctx *ctx, struct kiocb *req) { assert_spin_locked(&ctx->ctx_lock); + if (req->ki_eventfd != NULL) + eventfd_ctx_put(req->ki_eventfd); if (req->ki_dtor) req->ki_dtor(req); if (req->ki_iovec != &req->ki_inline_vec) @@ -509,8 +511,6 @@ static void aio_fput_routine(struct work_struct *data) /* Complete the fput(s) */ if (req->ki_filp != NULL) __fput(req->ki_filp); - if (req->ki_eventfd != NULL) - __fput(req->ki_eventfd); /* Link the iocb into the context's free list */ spin_lock_irq(&ctx->ctx_lock); @@ -528,8 +528,6 @@ static void aio_fput_routine(struct work_struct *data) */ static int __aio_put_req(struct kioctx *ctx, struct kiocb *req) { - int schedule_putreq = 0; - dprintk(KERN_DEBUG "aio_put(%p): f_count=%ld\n", req, atomic_long_read(&req->ki_filp->f_count)); @@ -549,24 +547,16 @@ static int __aio_put_req(struct kioctx *ctx, struct kiocb *req) * we would not be holding the last reference to the file*, so * this function will be executed w/out any aio kthread wakeup. */ - if (unlikely(atomic_long_dec_and_test(&req->ki_filp->f_count))) - schedule_putreq++; - else - req->ki_filp = NULL; - if (req->ki_eventfd != NULL) { - if (unlikely(atomic_long_dec_and_test(&req->ki_eventfd->f_count))) - schedule_putreq++; - else - req->ki_eventfd = NULL; - } - if (unlikely(schedule_putreq)) { + if (unlikely(atomic_long_dec_and_test(&req->ki_filp->f_count))) { get_ioctx(ctx); spin_lock(&fput_lock); list_add(&req->ki_list, &fput_head); spin_unlock(&fput_lock); queue_work(aio_wq, &fput_work); - } else + } else { + req->ki_filp = NULL; really_put_req(ctx, req); + } return 1; } @@ -1622,7 +1612,7 @@ static int io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb, * an eventfd() fd, and will be signaled for each completed * event using the eventfd_signal() function. */ - req->ki_eventfd = eventfd_fget((int) iocb->aio_resfd); + req->ki_eventfd = eventfd_ctx_fdget((int) iocb->aio_resfd); if (IS_ERR(req->ki_eventfd)) { ret = PTR_ERR(req->ki_eventfd); req->ki_eventfd = NULL; diff --git a/fs/eventfd.c b/fs/eventfd.c index 3f0e1974abd..31d12de83a2 100644 --- a/fs/eventfd.c +++ b/fs/eventfd.c @@ -14,35 +14,44 @@ #include #include #include -#include #include #include +#include +#include struct eventfd_ctx { + struct kref kref; wait_queue_head_t wqh; /* * Every time that a write(2) is performed on an eventfd, the * value of the __u64 being written is added to "count" and a * wakeup is performed on "wqh". A read(2) will return the "count" * value to userspace, and will reset "count" to zero. The kernel - * size eventfd_signal() also, adds to the "count" counter and + * side eventfd_signal() also, adds to the "count" counter and * issue a wakeup. */ __u64 count; unsigned int flags; }; -/* - * Adds "n" to the eventfd counter "count". Returns "n" in case of - * success, or a value lower then "n" in case of coutner overflow. - * This function is supposed to be called by the kernel in paths - * that do not allow sleeping. In this function we allow the counter - * to reach the ULLONG_MAX value, and we signal this as overflow - * condition by returining a POLLERR to poll(2). +/** + * eventfd_signal - Adds @n to the eventfd counter. + * @ctx: [in] Pointer to the eventfd context. + * @n: [in] Value of the counter to be added to the eventfd internal counter. + * The value cannot be negative. + * + * This function is supposed to be called by the kernel in paths that do not + * allow sleeping. In this function we allow the counter to reach the ULLONG_MAX + * value, and we signal this as overflow condition by returining a POLLERR + * to poll(2). + * + * Returns @n in case of success, a non-negative number lower than @n in case + * of overflow, or the following error codes: + * + * -EINVAL : The value of @n is negative. */ -int eventfd_signal(struct file *file, int n) +int eventfd_signal(struct eventfd_ctx *ctx, int n) { - struct eventfd_ctx *ctx = file->private_data; unsigned long flags; if (n < 0) @@ -59,9 +68,45 @@ int eventfd_signal(struct file *file, int n) } EXPORT_SYMBOL_GPL(eventfd_signal); +static void eventfd_free(struct kref *kref) +{ + struct eventfd_ctx *ctx = container_of(kref, struct eventfd_ctx, kref); + + kfree(ctx); +} + +/** + * eventfd_ctx_get - Acquires a reference to the internal eventfd context. + * @ctx: [in] Pointer to the eventfd context. + * + * Returns: In case of success, returns a pointer to the eventfd context. + */ +struct eventfd_ctx *eventfd_ctx_get(struct eventfd_ctx *ctx) +{ + kref_get(&ctx->kref); + return ctx; +} +EXPORT_SYMBOL_GPL(eventfd_ctx_get); + +/** + * eventfd_ctx_put - Releases a reference to the internal eventfd context. + * @ctx: [in] Pointer to eventfd context. + * + * The eventfd context reference must have been previously acquired either + * with eventfd_ctx_get() or eventfd_ctx_fdget()). + */ +void eventfd_ctx_put(struct eventfd_ctx *ctx) +{ + kref_put(&ctx->kref, eventfd_free); +} +EXPORT_SYMBOL_GPL(eventfd_ctx_put); + static int eventfd_release(struct inode *inode, struct file *file) { - kfree(file->private_data); + struct eventfd_ctx *ctx = file->private_data; + + wake_up_poll(&ctx->wqh, POLLHUP); + eventfd_ctx_put(ctx); return 0; } @@ -185,6 +230,16 @@ static const struct file_operations eventfd_fops = { .write = eventfd_write, }; +/** + * eventfd_fget - Acquire a reference of an eventfd file descriptor. + * @fd: [in] Eventfd file descriptor. + * + * Returns a pointer to the eventfd file structure in case of success, or the + * following error pointer: + * + * -EBADF : Invalid @fd file descriptor. + * -EINVAL : The @fd file descriptor is not an eventfd file. + */ struct file *eventfd_fget(int fd) { struct file *file; @@ -201,6 +256,48 @@ struct file *eventfd_fget(int fd) } EXPORT_SYMBOL_GPL(eventfd_fget); +/** + * eventfd_ctx_fdget - Acquires a reference to the internal eventfd context. + * @fd: [in] Eventfd file descriptor. + * + * Returns a pointer to the internal eventfd context, otherwise the error + * pointers returned by the following functions: + * + * eventfd_fget + */ +struct eventfd_ctx *eventfd_ctx_fdget(int fd) +{ + struct file *file; + struct eventfd_ctx *ctx; + + file = eventfd_fget(fd); + if (IS_ERR(file)) + return (struct eventfd_ctx *) file; + ctx = eventfd_ctx_get(file->private_data); + fput(file); + + return ctx; +} +EXPORT_SYMBOL_GPL(eventfd_ctx_fdget); + +/** + * eventfd_ctx_fileget - Acquires a reference to the internal eventfd context. + * @file: [in] Eventfd file pointer. + * + * Returns a pointer to the internal eventfd context, otherwise the error + * pointer: + * + * -EINVAL : The @fd file descriptor is not an eventfd file. + */ +struct eventfd_ctx *eventfd_ctx_fileget(struct file *file) +{ + if (file->f_op != &eventfd_fops) + return ERR_PTR(-EINVAL); + + return eventfd_ctx_get(file->private_data); +} +EXPORT_SYMBOL_GPL(eventfd_ctx_fileget); + SYSCALL_DEFINE2(eventfd2, unsigned int, count, int, flags) { int fd; @@ -217,6 +314,7 @@ SYSCALL_DEFINE2(eventfd2, unsigned int, count, int, flags) if (!ctx) return -ENOMEM; + kref_init(&ctx->kref); init_waitqueue_head(&ctx->wqh); ctx->count = count; ctx->flags = flags; diff --git a/include/linux/aio.h b/include/linux/aio.h index b16a957030f..47f7d932a01 100644 --- a/include/linux/aio.h +++ b/include/linux/aio.h @@ -121,9 +121,9 @@ struct kiocb { /* * If the aio_resfd field of the userspace iocb is not zero, - * this is the underlying file* to deliver event to. + * this is the underlying eventfd context to deliver events to. */ - struct file *ki_eventfd; + struct eventfd_ctx *ki_eventfd; }; #define is_sync_kiocb(iocb) ((iocb)->ki_key == KIOCB_SYNC_KEY) diff --git a/include/linux/eventfd.h b/include/linux/eventfd.h index f45a8ae5f82..3b85ba6479f 100644 --- a/include/linux/eventfd.h +++ b/include/linux/eventfd.h @@ -8,10 +8,8 @@ #ifndef _LINUX_EVENTFD_H #define _LINUX_EVENTFD_H -#ifdef CONFIG_EVENTFD - -/* For O_CLOEXEC and O_NONBLOCK */ #include +#include /* * CAREFUL: Check include/asm-generic/fcntl.h when defining @@ -27,16 +25,37 @@ #define EFD_SHARED_FCNTL_FLAGS (O_CLOEXEC | O_NONBLOCK) #define EFD_FLAGS_SET (EFD_SHARED_FCNTL_FLAGS | EFD_SEMAPHORE) +#ifdef CONFIG_EVENTFD + +struct eventfd_ctx *eventfd_ctx_get(struct eventfd_ctx *ctx); +void eventfd_ctx_put(struct eventfd_ctx *ctx); struct file *eventfd_fget(int fd); -int eventfd_signal(struct file *file, int n); +struct eventfd_ctx *eventfd_ctx_fdget(int fd); +struct eventfd_ctx *eventfd_ctx_fileget(struct file *file); +int eventfd_signal(struct eventfd_ctx *ctx, int n); #else /* CONFIG_EVENTFD */ -#define eventfd_fget(fd) ERR_PTR(-ENOSYS) -static inline int eventfd_signal(struct file *file, int n) -{ return 0; } +/* + * Ugly ugly ugly error layer to support modules that uses eventfd but + * pretend to work in !CONFIG_EVENTFD configurations. Namely, AIO. + */ +static inline struct eventfd_ctx *eventfd_ctx_fdget(int fd) +{ + return ERR_PTR(-ENOSYS); +} + +static inline int eventfd_signal(struct eventfd_ctx *ctx, int n) +{ + return -ENOSYS; +} + +static inline void eventfd_ctx_put(struct eventfd_ctx *ctx) +{ + +} -#endif /* CONFIG_EVENTFD */ +#endif #endif /* _LINUX_EVENTFD_H */ -- cgit v1.2.3 From 2a2325e6e8a3782795fb520220c36fd805775972 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Tue, 30 Jun 2009 11:41:13 -0700 Subject: gcov: fix __ctors_start alignment The ctors section for each object file is eight byte aligned (on 64 bit). However the __ctors_start symbol starts at an arbitrary address dependent on the size of the previous sections. Therefore the linker may add some zeroes after __ctors_start to make sure the ctors contents are properly aligned. However the extra zeroes at the beginning aren't expected by the code. When walking the functions pointers contained in there and extra zeroes are added this may result in random jumps. So make sure that the __ctors_start symbol is always aligned as well. Fixes this crash on an allyesconfig on s390: [ 0.582482] Kernel BUG at 0000000000000012 [verbose debug info unavailable] [ 0.582489] illegal operation: 0001 [#1] SMP DEBUG_PAGEALLOC [ 0.582496] Modules linked in: [ 0.582501] CPU: 0 Tainted: G W 2.6.31-rc1-dirty #273 [ 0.582506] Process swapper (pid: 1, task: 000000003f218000, ksp: 000000003f2238e8) [ 0.582510] Krnl PSW : 0704200180000000 0000000000000012 (0x12) [ 0.582518] R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:2 PM:0 EA:3 [ 0.582524] Krnl GPRS: 0000000000036727 0000000000000010 0000000000000001 0000000000000001 [ 0.582529] 00000000001dfefa 0000000000000000 0000000000000000 0000000000000040 [ 0.582534] 0000000001fff0f0 0000000001790628 0000000002296048 0000000002296048 [ 0.582540] 00000000020c438e 0000000001786000 0000000002014a66 000000003f223e60 [ 0.582553] Krnl Code:>0000000000000012: 0000 unknown [ 0.582559] 0000000000000014: 0000 unknown [ 0.582564] 0000000000000016: 0000 unknown [ 0.582570] 0000000000000018: 0000 unknown [ 0.582575] 000000000000001a: 0000 unknown [ 0.582580] 000000000000001c: 0000 unknown [ 0.582585] 000000000000001e: 0000 unknown [ 0.582591] 0000000000000020: 0000 unknown [ 0.582596] Call Trace: [ 0.582599] ([<0000000002014a46>] kernel_init+0x622/0x7a0) [ 0.582607] [<0000000000113e22>] kernel_thread_starter+0x6/0xc [ 0.582615] [<0000000000113e1c>] kernel_thread_starter+0x0/0xc [ 0.582621] INFO: lockdep is turned off. [ 0.582624] Last Breaking-Event-Address: [ 0.582627] [<0000000002014a64>] kernel_init+0x640/0x7a0 Cc: Peter Oberparleiter Cc: Ingo Molnar Cc: Martin Schwidefsky Signed-off-by: Heiko Carstens Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/vmlinux.lds.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 92b73b6140f..dccdbed0584 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -441,7 +441,8 @@ } #ifdef CONFIG_CONSTRUCTORS -#define KERNEL_CTORS() VMLINUX_SYMBOL(__ctors_start) = .; \ +#define KERNEL_CTORS() . = ALIGN(8); \ + VMLINUX_SYMBOL(__ctors_start) = .; \ *(.ctors) \ VMLINUX_SYMBOL(__ctors_end) = .; #else -- cgit v1.2.3 From c15e504bd008aedfcd2219051055b66bffdb6148 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Tue, 30 Jun 2009 11:41:13 -0700 Subject: MAINTAINERS: update EDAC-I82975X As per Ranganathan's request. Signed-off-by: Joe Perches Cc: Ranganathan Desikan Cc: Arvind R. Cc: Doug Thompson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- MAINTAINERS | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index 05a9a563042..92fe0796cd1 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2130,9 +2130,9 @@ F: drivers/edac/i5400_edac.c EDAC-I82975X P: Ranganathan Desikan -M: rdesikan@jetzbroadband.com +M: ravi@jetztechnologies.com P: Arvind R. -M: arvind@acarlab.com +M: arvind@jetztechnologies.com L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers) W: bluesmoke.sourceforge.net S: Maintained -- cgit v1.2.3 From 15e3252464432a29c5461325cb5243471bd2a219 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Tue, 30 Jun 2009 11:41:15 -0700 Subject: fbdev: work around old compiler bug When building with a 4.1.x compiler on powerpc64 (at least) we get this error: drivers/video/logo/logo_linux_mono.c:81: error: logo_linux_mono causes a section type conflict This was introduced by commit ae52bb2384f721562f15f719de1acb8e934733cb ("fbdev: move logo externs to header file"). This is a partial revert of that commit sufficient to not hit the compiler bug. Also convert _clut arrays from __initconst to __initdata. Sam said: Al analysed this some time ago. When we say something is const then _sometimes_ gcc annotate the section as const(?) - sometimes not. So if we have two variables/functions annotated __*const and gcc decides to annotate the section const only in one case we get a section type conflict. Signed-off-by: Stephen Rothwell Cc: Sam Ravnborg Cc: Krzysztof Helt Cc: Geert Uytterhoeven Cc: Kyle McMartin Cc: Al Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- scripts/pnmtologo.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/scripts/pnmtologo.c b/scripts/pnmtologo.c index 64f5ddb09ea..5c113123ed9 100644 --- a/scripts/pnmtologo.c +++ b/scripts/pnmtologo.c @@ -237,7 +237,7 @@ static void write_header(void) fprintf(out, " * Linux logo %s\n", logoname); fputs(" */\n\n", out); fputs("#include \n\n", out); - fprintf(out, "static const unsigned char %s_data[] __initconst = {\n", + fprintf(out, "static unsigned char %s_data[] __initdata = {\n", logoname); } @@ -374,7 +374,7 @@ static void write_logo_clut224(void) fputs("\n};\n\n", out); /* write logo clut */ - fprintf(out, "static const unsigned char %s_clut[] __initconst = {\n", + fprintf(out, "static unsigned char %s_clut[] __initdata = {\n", logoname); write_hex_cnt = 0; for (i = 0; i < logo_clutsize; i++) { -- cgit v1.2.3 From b01e8dc34379f4ba2f454390e340a025edbaaa7e Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 30 Jun 2009 11:41:18 -0700 Subject: alpha: fix percpu build breakage alpha percpu access requires custom SHIFT_PERCPU_PTR() definition for modules to work around addressing range limitation. This is done via generating inline assembly using C preprocessing which forces the assembler to generate external reference. This happens behind the compiler's back and makes the compiler think that static percpu variables in modules are unused. This used to be worked around by using __unused attribute for percpu variables which prevent the compiler from omitting the variable; however, recent declare/definition attribute unification change broke this as __used can't be used for declaration. Also, in the process, PER_CPU_ATTRIBUTES definition in alpha percpu.h got broken. This patch adds PER_CPU_DEF_ATTRIBUTES which is only used for definitions and make alpha use it to add __used for percpu variables in modules. This also fixes the PER_CPU_ATTRIBUTES double definition bug. Signed-off-by: Tejun Heo Tested-by: maximilian attems Acked-by: Ivan Kokshaysky Cc: Richard Henderson Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/include/asm/percpu.h | 6 +++--- include/asm-generic/percpu.h | 4 ++++ include/linux/percpu-defs.h | 3 ++- 3 files changed, 9 insertions(+), 4 deletions(-) diff --git a/arch/alpha/include/asm/percpu.h b/arch/alpha/include/asm/percpu.h index 06c5c7a4afd..b663f1f10b6 100644 --- a/arch/alpha/include/asm/percpu.h +++ b/arch/alpha/include/asm/percpu.h @@ -30,7 +30,7 @@ extern unsigned long __per_cpu_offset[NR_CPUS]; #ifndef MODULE #define SHIFT_PERCPU_PTR(var, offset) RELOC_HIDE(&per_cpu_var(var), (offset)) -#define PER_CPU_ATTRIBUTES +#define PER_CPU_DEF_ATTRIBUTES #else /* * To calculate addresses of locally defined variables, GCC uses 32-bit @@ -49,7 +49,7 @@ extern unsigned long __per_cpu_offset[NR_CPUS]; : "=&r"(__ptr), "=&r"(tmp_gp)); \ (typeof(&per_cpu_var(var)))(__ptr + (offset)); }) -#define PER_CPU_ATTRIBUTES __used +#define PER_CPU_DEF_ATTRIBUTES __used #endif /* MODULE */ @@ -71,7 +71,7 @@ extern unsigned long __per_cpu_offset[NR_CPUS]; #define __get_cpu_var(var) per_cpu_var(var) #define __raw_get_cpu_var(var) per_cpu_var(var) -#define PER_CPU_ATTRIBUTES +#define PER_CPU_DEF_ATTRIBUTES #endif /* SMP */ diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h index d7d50d7ee51..aa00800adac 100644 --- a/include/asm-generic/percpu.h +++ b/include/asm-generic/percpu.h @@ -97,4 +97,8 @@ extern void setup_per_cpu_areas(void); #define PER_CPU_ATTRIBUTES #endif +#ifndef PER_CPU_DEF_ATTRIBUTES +#define PER_CPU_DEF_ATTRIBUTES +#endif + #endif /* _ASM_GENERIC_PERCPU_H_ */ diff --git a/include/linux/percpu-defs.h b/include/linux/percpu-defs.h index 8f921d74f49..68438e18fff 100644 --- a/include/linux/percpu-defs.h +++ b/include/linux/percpu-defs.h @@ -24,7 +24,8 @@ #define DEFINE_PER_CPU_SECTION(type, name, section) \ __attribute__((__section__(PER_CPU_BASE_SECTION section))) \ - PER_CPU_ATTRIBUTES __typeof__(type) per_cpu__##name + PER_CPU_ATTRIBUTES PER_CPU_DEF_ATTRIBUTES \ + __typeof__(type) per_cpu__##name /* * Variant on the per-CPU variable declaration/definition theme used for -- cgit v1.2.3 From 972c71a3183ab41c0b1a9e50842be7e3e980954f Mon Sep 17 00:00:00 2001 From: Peter Oberparleiter Date: Tue, 30 Jun 2009 11:41:20 -0700 Subject: gcov: fix documentation Commonly available versions of cp and tar don't work well with special files created using seq_file. Mention this problem in the gcov documentation and update the helper script example to work around these problems. Signed-off-by: Peter Oberparleiter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/gcov.txt | 25 ++++++++++++++++--------- 1 file changed, 16 insertions(+), 9 deletions(-) diff --git a/Documentation/gcov.txt b/Documentation/gcov.txt index e716aadb3a3..40ec6335276 100644 --- a/Documentation/gcov.txt +++ b/Documentation/gcov.txt @@ -188,13 +188,18 @@ Solution: Exclude affected source files from profiling by specifying GCOV_PROFILE := n or GCOV_PROFILE_basename.o := n in the corresponding Makefile. +Problem: Files copied from sysfs appear empty or incomplete. +Cause: Due to the way seq_file works, some tools such as cp or tar + may not correctly copy files from sysfs. +Solution: Use 'cat' to read .gcda files and 'cp -d' to copy links. + Alternatively use the mechanism shown in Appendix B. + Appendix A: gather_on_build.sh ============================== Sample script to gather coverage meta files on the build machine (see 6a): - #!/bin/bash KSRC=$1 @@ -226,7 +231,7 @@ Appendix B: gather_on_test.sh Sample script to gather coverage data files on the test machine (see 6b): -#!/bin/bash +#!/bin/bash -e DEST=$1 GCDA=/sys/kernel/debug/gcov @@ -236,11 +241,13 @@ if [ -z "$DEST" ] ; then exit 1 fi -find $GCDA -name '*.gcno' -o -name '*.gcda' | tar cfz $DEST -T - +TEMPDIR=$(mktemp -d) +echo Collecting data.. +find $GCDA -type d -exec mkdir -p $TEMPDIR/\{\} \; +find $GCDA -name '*.gcda' -exec sh -c 'cat < $0 > '$TEMPDIR'/$0' {} \; +find $GCDA -name '*.gcno' -exec sh -c 'cp -d $0 '$TEMPDIR'/$0' {} \; +tar czf $DEST -C $TEMPDIR sys +rm -rf $TEMPDIR -if [ $? -eq 0 ] ; then - echo "$DEST successfully created, copy to build system and unpack with:" - echo " tar xfz $DEST" -else - echo "Could not create file $DEST" -fi +echo "$DEST successfully created, copy to build system and unpack with:" +echo " tar xfz $DEST" -- cgit v1.2.3 From c4285b47b0514e2103584ee829246f813e7ae323 Mon Sep 17 00:00:00 2001 From: Michael Buesch Date: Tue, 30 Jun 2009 11:41:21 -0700 Subject: parport/serial: add support for NetMos 9901 Multi-IO card Add support for the PCI-Express NetMos 9901 Multi-IO card. 0001:06:00.0 Serial controller [0700]: NetMos Technology Device [9710:9901] (prog-if 02 [16550]) Subsystem: Device [a000:1000] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- Kernel driver in use: serial Kernel modules: 8250_pci 0001:06:00.1 Serial controller [0700]: NetMos Technology Device [9710:9901] (prog-if 02 [16550]) Subsystem: Device [a000:1000] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- Kernel driver in use: serial Kernel modules: 8250_pci 0001:06:00.2 Parallel controller [0701]: NetMos Technology Device [9710:9901] (prog-if 03 [IEEE1284]) Subsystem: Device [a000:2000] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- Region 2: Memory at 80101000 (32-bit, non-prefetchable) [size=4K] Region 4: Memory at 80100000 (32-bit, non-prefetchable) [size=4K] Capabilities: Kernel driver in use: parport_pc Kernel modules: parport_pc [ 16.760181] PCI parallel port detected: 416c:0100, I/O at 0x812010(0x0), IRQ 65 [ 16.760225] parport0: PC-style at 0x812010, irq 65 [PCSPP,TRISTATE,EPP] [ 16.851842] serial 0001:06:00.0: enabling device (0004 -> 0007) [ 16.883776] 0001:06:00.0: ttyS0 at I/O 0x812030 (irq = 65) is a ST16650V2 [ 16.893832] serial 0001:06:00.1: enabling device (0004 -> 0007) [ 16.926537] 0001:06:00.1: ttyS1 at I/O 0x812020 (irq = 65) is a ST16650V2 Signed-off-by: Michael Buesch Cc: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/parport/parport_pc.c | 5 ++++- drivers/serial/8250_pci.c | 6 ++++++ include/linux/pci_ids.h | 1 + 3 files changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c index 1032d5fdbd4..2597145a066 100644 --- a/drivers/parport/parport_pc.c +++ b/drivers/parport/parport_pc.c @@ -2907,6 +2907,7 @@ enum parport_pc_pci_cards { netmos_9755, netmos_9805, netmos_9815, + netmos_9901, quatech_sppxp100, }; @@ -2987,7 +2988,7 @@ static struct parport_pc_pci { /* netmos_9755 */ { 2, { { 0, 1 }, { 2, 3 },} }, /* netmos_9805 */ { 1, { { 0, -1 }, } }, /* netmos_9815 */ { 2, { { 0, -1 }, { 2, -1 }, } }, - + /* netmos_9901 */ { 1, { { 0, -1 }, } }, /* quatech_sppxp100 */ { 1, { { 0, 1 }, } }, }; @@ -3089,6 +3090,8 @@ static const struct pci_device_id parport_pc_pci_tbl[] = { PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9805 }, { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9815, PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9815 }, + { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9901, + 0xA000, 0x2000, 0, 0, netmos_9901 }, /* Quatech SPPXP-100 Parallel port PCI ExpressCard */ { PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_SPPXP_100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, quatech_sppxp100 }, diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c index a07015d646d..6160e03f410 100644 --- a/drivers/serial/8250_pci.c +++ b/drivers/serial/8250_pci.c @@ -759,6 +759,8 @@ static int pci_netmos_init(struct pci_dev *dev) /* subdevice 0x00PS means

parallel, serial */ unsigned int num_serial = dev->subsystem_device & 0xf; + if (dev->device == PCI_DEVICE_ID_NETMOS_9901) + return 0; if (dev->subsystem_vendor == PCI_VENDOR_ID_IBM && dev->subsystem_device == 0x0299) return 0; @@ -3557,6 +3559,10 @@ static struct pci_device_id serial_pci_tbl[] = { PCI_VENDOR_ID_IBM, 0x0299, 0, 0, pbn_b0_bt_2_115200 }, + { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9901, + 0xA000, 0x1000, + 0, 0, pbn_b0_1_115200 }, + /* * These entries match devices with class COMMUNICATION_SERIAL, * COMMUNICATION_MODEM or COMMUNICATION_MULTISERIAL diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index a3b00036579..73b46b6b904 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -2645,6 +2645,7 @@ #define PCI_DEVICE_ID_NETMOS_9835 0x9835 #define PCI_DEVICE_ID_NETMOS_9845 0x9845 #define PCI_DEVICE_ID_NETMOS_9855 0x9855 +#define PCI_DEVICE_ID_NETMOS_9901 0x9901 #define PCI_VENDOR_ID_3COM_2 0xa727 -- cgit v1.2.3 From b1cfebc9231a69d46d66982a2c856ba41ef6d6b9 Mon Sep 17 00:00:00 2001 From: Yang Shi Date: Tue, 30 Jun 2009 11:41:22 -0700 Subject: edac: add DDR3 memory type for MPC85xx EDAC Since some new MPC85xx SOCs support DDR3 memory now, so add DDR3 memory type for MPC85xx EDAC. Signed-off-by: Yang Shi Cc: Doug Thompson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/edac/edac_core.h | 4 ++++ drivers/edac/edac_mc_sysfs.c | 4 +++- drivers/edac/mpc85xx_edac.c | 6 ++++++ drivers/edac/mpc85xx_edac.h | 1 + 4 files changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/edac/edac_core.h b/drivers/edac/edac_core.h index 3493c6bdb82..871c13b4c14 100644 --- a/drivers/edac/edac_core.h +++ b/drivers/edac/edac_core.h @@ -150,6 +150,8 @@ enum mem_type { MEM_FB_DDR2, /* fully buffered DDR2 */ MEM_RDDR2, /* Registered DDR2 RAM */ MEM_XDR, /* Rambus XDR */ + MEM_DDR3, /* DDR3 RAM */ + MEM_RDDR3, /* Registered DDR3 RAM */ }; #define MEM_FLAG_EMPTY BIT(MEM_EMPTY) @@ -167,6 +169,8 @@ enum mem_type { #define MEM_FLAG_FB_DDR2 BIT(MEM_FB_DDR2) #define MEM_FLAG_RDDR2 BIT(MEM_RDDR2) #define MEM_FLAG_XDR BIT(MEM_XDR) +#define MEM_FLAG_DDR3 BIT(MEM_DDR3) +#define MEM_FLAG_RDDR3 BIT(MEM_RDDR3) /* chipset Error Detection and Correction capabilities and mode */ enum edac_type { diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c index ad218fe4942..e1d4ce08348 100644 --- a/drivers/edac/edac_mc_sysfs.c +++ b/drivers/edac/edac_mc_sysfs.c @@ -94,7 +94,9 @@ static const char *mem_types[] = { [MEM_DDR2] = "Unbuffered-DDR2", [MEM_FB_DDR2] = "FullyBuffered-DDR2", [MEM_RDDR2] = "Registered-DDR2", - [MEM_XDR] = "XDR" + [MEM_XDR] = "XDR", + [MEM_DDR3] = "Unbuffered-DDR3", + [MEM_RDDR3] = "Registered-DDR3" }; static const char *dev_types[] = { diff --git a/drivers/edac/mpc85xx_edac.c b/drivers/edac/mpc85xx_edac.c index 7c8c2d72916..3f2ccfc6407 100644 --- a/drivers/edac/mpc85xx_edac.c +++ b/drivers/edac/mpc85xx_edac.c @@ -757,6 +757,9 @@ static void __devinit mpc85xx_init_csrows(struct mem_ctl_info *mci) case DSC_SDTYPE_DDR2: mtype = MEM_RDDR2; break; + case DSC_SDTYPE_DDR3: + mtype = MEM_RDDR3; + break; default: mtype = MEM_UNKNOWN; break; @@ -769,6 +772,9 @@ static void __devinit mpc85xx_init_csrows(struct mem_ctl_info *mci) case DSC_SDTYPE_DDR2: mtype = MEM_DDR2; break; + case DSC_SDTYPE_DDR3: + mtype = MEM_DDR3; + break; default: mtype = MEM_UNKNOWN; break; diff --git a/drivers/edac/mpc85xx_edac.h b/drivers/edac/mpc85xx_edac.h index 135b3539a03..52432ee7c4b 100644 --- a/drivers/edac/mpc85xx_edac.h +++ b/drivers/edac/mpc85xx_edac.h @@ -53,6 +53,7 @@ #define DSC_SDTYPE_DDR 0x02000000 #define DSC_SDTYPE_DDR2 0x03000000 +#define DSC_SDTYPE_DDR3 0x07000000 #define DSC_X32_EN 0x00000020 /* Err_Int_En */ -- cgit v1.2.3 From 341c87bf346f57748230628c5ad6ee69219250e8 Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Tue, 30 Jun 2009 11:41:23 -0700 Subject: elf: limit max map count to safe value With ELF, at generating coredump, some more headers other than used vmas are added. When max_map_count == 65536, a core generated by following kinds of code can be unreadable because the number of ELF's program header is written in 16bit in Ehdr (please see elf.h) and the number overflows. == ... = mmap(); (munmap, mprotect, etc...) if (failed) abort(); == This can happen in mmap/munmap/mprotect/etc...which calls split_vma(). I think 65536 is not safe as _default_ and reduce it to 65530 is good for avoiding unexpected corrupted core. Anyway, max_map_count can be enlarged by sysctl if a user is brave.. Signed-off-by: KAMEZAWA Hiroyuki Cc: Hugh Dickins Cc: Jakub Jelinek Acked-by: Roland McGrath Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/binfmt_elf.c | 5 ++++- include/linux/sched.h | 16 ++++++++++++++-- 2 files changed, 18 insertions(+), 3 deletions(-) diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c index 9fa212b014a..f1867900e45 100644 --- a/fs/binfmt_elf.c +++ b/fs/binfmt_elf.c @@ -1929,7 +1929,10 @@ static int elf_core_dump(long signr, struct pt_regs *regs, struct file *file, un elf = kmalloc(sizeof(*elf), GFP_KERNEL); if (!elf) goto out; - + /* + * The number of segs are recored into ELF header as 16bit value. + * Please check DEFAULT_MAX_MAP_COUNT definition when you modify here. + */ segs = current->mm->map_count; #ifdef ELF_CORE_EXTRA_PHDRS segs += ELF_CORE_EXTRA_PHDRS; diff --git a/include/linux/sched.h b/include/linux/sched.h index 4d075426988..0085d758d64 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -349,8 +349,20 @@ extern int mutex_spin_on_owner(struct mutex *lock, struct thread_info *owner); struct nsproxy; struct user_namespace; -/* Maximum number of active map areas.. This is a random (large) number */ -#define DEFAULT_MAX_MAP_COUNT 65536 +/* + * Default maximum number of active map areas, this limits the number of vmas + * per mm struct. Users can overwrite this number by sysctl but there is a + * problem. + * + * When a program's coredump is generated as ELF format, a section is created + * per a vma. In ELF, the number of sections is represented in unsigned short. + * This means the number of sections should be smaller than 65535 at coredump. + * Because the kernel adds some informative sections to a image of program at + * generating coredump, we need some margin. The number of extra sections is + * 1-3 now and depends on arch. We use "5" as safe margin, here. + */ +#define MAPCOUNT_ELF_CORE_MARGIN (5) +#define DEFAULT_MAX_MAP_COUNT (USHORT_MAX - MAPCOUNT_ELF_CORE_MARGIN) extern int sysctl_max_map_count; -- cgit v1.2.3 From 4d6c13f87db12ae1ce35ea6a15688ac72419b133 Mon Sep 17 00:00:00 2001 From: Bryan Donlan Date: Tue, 30 Jun 2009 11:41:24 -0700 Subject: ext2: return -EIO not -ESTALE on directory traversal through deleted inode ext2_iget() returns -ESTALE if invoked on a deleted inode, in order to report errors to NFS properly. However, in ext[234]_lookup(), this -ESTALE can be propagated to userspace if the filesystem is corrupted such that a directory entry references a deleted inode. This leads to a misleading error message - "Stale NFS file handle" - and confusion on the part of the admin. The bug can be easily reproduced by creating a new filesystem, making a link to an unused inode using debugfs, then mounting and attempting to ls -l said link. This patch thus changes ext2_lookup to return -EIO if it receives -ESTALE from ext2_iget(), as ext2 does for other filesystem metadata corruption; and also invokes the appropriate ext*_error functions when this case is detected. Signed-off-by: Bryan Donlan Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ext2/namei.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/fs/ext2/namei.c b/fs/ext2/namei.c index 6524ecaebb7..e1dedb0f787 100644 --- a/fs/ext2/namei.c +++ b/fs/ext2/namei.c @@ -66,8 +66,16 @@ static struct dentry *ext2_lookup(struct inode * dir, struct dentry *dentry, str inode = NULL; if (ino) { inode = ext2_iget(dir->i_sb, ino); - if (IS_ERR(inode)) - return ERR_CAST(inode); + if (unlikely(IS_ERR(inode))) { + if (PTR_ERR(inode) == -ESTALE) { + ext2_error(dir->i_sb, __func__, + "deleted inode referenced: %lu", + ino); + return ERR_PTR(-EIO); + } else { + return ERR_CAST(inode); + } + } } return d_splice_alias(inode, dentry); } -- cgit v1.2.3 From c49568235dd7b4a2ffad63aa950562f4ffb9455f Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 30 Jun 2009 11:41:25 -0700 Subject: dmapools: protect page_list walk in show_pools() show_pools() walks the page_list of a pool w/o protection against the list modifications in alloc/free. Take pool->lock to avoid stomping into nirvana. Signed-off-by: Thomas Gleixner Signed-off-by: Matthew Wilcox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/dmapool.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/mm/dmapool.c b/mm/dmapool.c index b1f0885dda2..3df063706f5 100644 --- a/mm/dmapool.c +++ b/mm/dmapool.c @@ -86,10 +86,12 @@ show_pools(struct device *dev, struct device_attribute *attr, char *buf) unsigned pages = 0; unsigned blocks = 0; + spin_lock_irq(&pool->lock); list_for_each_entry(page, &pool->page_list, page_list) { pages++; blocks += page->in_use; } + spin_unlock_irq(&pool->lock); /* per-pool info, no real statistics yet */ temp = scnprintf(next, size, "%-16s %4u %4Zu %4Zu %2u\n", -- cgit v1.2.3 From b55f627feeb9d48fdbde3835e18afbc76712e49b Mon Sep 17 00:00:00 2001 From: David Brownell Date: Tue, 30 Jun 2009 11:41:26 -0700 Subject: spi: new spi->mode bits Add two new spi_device.mode bits to accomodate more protocol options, and pass them through to usermode drivers: * SPI_NO_CS ... a second 3-wire variant, where the chipselect line is removed instead of a data line; transfers are still full duplex. This obviously has STRONG protocol implications since the chipselect transitions can't be used to synchronize state transitions with the SPI master. * SPI_READY ... defines open drain signal that's pulled low to pause the clock. This defines a 5-wire variant (normal 4-wire SPI plus READY) and two 4-wire variants (READY plus each of the 3-wire flavors). Such hardware flow control can be a big win. There are ADC converters and flash chips that expose READY signals, but not many host controllers support it today. The spi_bitbang code should be changed to use SPI_NO_CS instead of its current nonportable hack. That's a mode most hardware can easily support (unlike SPI_READY). Signed-off-by: David Brownell Cc: "Paulraj, Sandeep" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/spi/spidev_test.c | 10 +++++++++- drivers/spi/spidev.c | 17 +++++++++++------ include/linux/spi/spi.h | 2 ++ include/linux/spi/spidev.h | 2 ++ 4 files changed, 24 insertions(+), 7 deletions(-) diff --git a/Documentation/spi/spidev_test.c b/Documentation/spi/spidev_test.c index cf0e3ce0d52..c1a5aad3c75 100644 --- a/Documentation/spi/spidev_test.c +++ b/Documentation/spi/spidev_test.c @@ -99,11 +99,13 @@ void parse_opts(int argc, char *argv[]) { "lsb", 0, 0, 'L' }, { "cs-high", 0, 0, 'C' }, { "3wire", 0, 0, '3' }, + { "no-cs", 0, 0, 'N' }, + { "ready", 0, 0, 'R' }, { NULL, 0, 0, 0 }, }; int c; - c = getopt_long(argc, argv, "D:s:d:b:lHOLC3", lopts, NULL); + c = getopt_long(argc, argv, "D:s:d:b:lHOLC3NR", lopts, NULL); if (c == -1) break; @@ -139,6 +141,12 @@ void parse_opts(int argc, char *argv[]) case '3': mode |= SPI_3WIRE; break; + case 'N': + mode |= SPI_NO_CS; + break; + case 'R': + mode |= SPI_READY; + break; default: print_usage(argv[0]); break; diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c index 5d869c4d3eb..606e7a40a8d 100644 --- a/drivers/spi/spidev.c +++ b/drivers/spi/spidev.c @@ -58,15 +58,20 @@ static unsigned long minors[N_SPI_MINORS / BITS_PER_LONG]; /* Bit masks for spi_device.mode management. Note that incorrect - * settings for CS_HIGH and 3WIRE can cause *lots* of trouble for other - * devices on a shared bus: CS_HIGH, because this device will be - * active when it shouldn't be; 3WIRE, because when active it won't - * behave as it should. + * settings for some settings can cause *lots* of trouble for other + * devices on a shared bus: * - * REVISIT should changing those two modes be privileged? + * - CS_HIGH ... this device will be active when it shouldn't be + * - 3WIRE ... when active, it won't behave as it should + * - NO_CS ... there will be no explicit message boundaries; this + * is completely incompatible with the shared bus model + * - READY ... transfers may proceed when they shouldn't. + * + * REVISIT should changing those flags be privileged? */ #define SPI_MODE_MASK (SPI_CPHA | SPI_CPOL | SPI_CS_HIGH \ - | SPI_LSB_FIRST | SPI_3WIRE | SPI_LOOP) + | SPI_LSB_FIRST | SPI_3WIRE | SPI_LOOP \ + | SPI_NO_CS | SPI_READY) struct spidev_data { dev_t devt; diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 9c4cd27f468..743c933ac4e 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -80,6 +80,8 @@ struct spi_device { #define SPI_LSB_FIRST 0x08 /* per-word bits-on-wire */ #define SPI_3WIRE 0x10 /* SI/SO signals shared */ #define SPI_LOOP 0x20 /* loopback mode */ +#define SPI_NO_CS 0x40 /* 1 dev/bus, no chipselect */ +#define SPI_READY 0x80 /* slave pulls low to pause */ u8 bits_per_word; int irq; void *controller_state; diff --git a/include/linux/spi/spidev.h b/include/linux/spi/spidev.h index 95251ccd5a0..bf0570a84f7 100644 --- a/include/linux/spi/spidev.h +++ b/include/linux/spi/spidev.h @@ -40,6 +40,8 @@ #define SPI_LSB_FIRST 0x08 #define SPI_3WIRE 0x10 #define SPI_LOOP 0x20 +#define SPI_NO_CS 0x40 +#define SPI_READY 0x80 /*---------------------------------------------------------------------------*/ -- cgit v1.2.3 From 70d6027ff2bc8bab180273b77e7ab3e8a62cca51 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Tue, 30 Jun 2009 11:41:27 -0700 Subject: spi: add spi_master flag word Add a new spi_master.flags word listing constraints relevant to that controller. Define the first constraint bit: a half duplex restriction. Include that constraint in the OMAP1 MicroWire controller driver. Have the mmc_spi host be the first customer of this flag. Its coding relies heavily on full duplex transfers, so it must fail when the underlying controller driver won't perform them. (The spi_write_then_read routine could use it too: use the temporarily-withdrawn full-duplex speedup unless this flag is set, in which case the existing code applies. Similarly, any spi_master implementing only SPI_3WIRE should set the flag.) Signed-off-by: David Brownell Cc: Marek Szyprowski Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/mmc/host/mmc_spi.c | 6 ++++++ drivers/spi/omap_uwire.c | 2 ++ include/linux/spi/spi.h | 4 ++++ 3 files changed, 12 insertions(+) diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c index 240608cc7ae..a461017ce5c 100644 --- a/drivers/mmc/host/mmc_spi.c +++ b/drivers/mmc/host/mmc_spi.c @@ -1313,6 +1313,12 @@ static int mmc_spi_probe(struct spi_device *spi) struct mmc_spi_host *host; int status; + /* We rely on full duplex transfers, mostly to reduce + * per-transfer overheads (by making fewer transfers). + */ + if (spi->master->flags & SPI_MASTER_HALF_DUPLEX) + return -EINVAL; + /* MMC and SD specs only seem to care that sampling is on the * rising edge ... meaning SPI modes 0 or 3. So either SPI mode * should be legit. We'll use mode 0 since the steady state is 0, diff --git a/drivers/spi/omap_uwire.c b/drivers/spi/omap_uwire.c index aa90ddb3706..8980a5640bd 100644 --- a/drivers/spi/omap_uwire.c +++ b/drivers/spi/omap_uwire.c @@ -514,6 +514,8 @@ static int __init uwire_probe(struct platform_device *pdev) /* the spi->mode bits understood by this driver: */ master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH; + master->flags = SPI_MASTER_HALF_DUPLEX; + master->bus_num = 2; /* "official" */ master->num_chipselect = 4; master->setup = uwire_setup; diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 743c933ac4e..c47c4b4da97 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -250,6 +250,10 @@ struct spi_master { /* spi_device.mode flags understood by this controller driver */ u16 mode_bits; + /* other constraints relevant to this driver */ + u16 flags; +#define SPI_MASTER_HALF_DUPLEX BIT(0) /* can't do full duplex */ + /* Setup mode and clock, etc (spi driver may call many times). * * IMPORTANT: this may be called when transfers to another -- cgit v1.2.3 From 537a1bf059fa312355696fa6db80726e655e7f17 Mon Sep 17 00:00:00 2001 From: Krzysztof Helt Date: Tue, 30 Jun 2009 11:41:29 -0700 Subject: fbdev: add mutex for fb_mmap locking Add a mutex to avoid a circular locking problem between the mm layer semaphore and fbdev ioctl mutex through the fb_mmap() call. Also, add mutex to all places where smem_start and smem_len fields change so the mutex inside the fb_mmap() is actually used. Changing of these fields before calling the framebuffer_register() are not mutexed. This is 2.6.31 material. It removes one lockdep (fb_mmap() and register_framebuffer()) but there is still another one (fb_release() and register_framebuffer()). It also cleans up handling of the smem_start and smem_len fields used by mutexed section of the fb_mmap(). Signed-off-by: Krzysztof Helt Cc: Peter Zijlstra Cc: "Rafael J. Wysocki" Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/atafb.c | 7 ++++++- drivers/video/atmel_lcdfb.c | 2 ++ drivers/video/fbmem.c | 13 +++++-------- drivers/video/fsl-diu-fb.c | 14 +++++++++----- drivers/video/i810/i810_main.c | 2 ++ drivers/video/matrox/matroxfb_base.c | 3 +++ drivers/video/matrox/matroxfb_crtc2.c | 5 ++++- drivers/video/mx3fb.c | 17 +++++++++++------ drivers/video/omap/omapfb_main.c | 4 ++++ drivers/video/platinumfb.c | 2 ++ drivers/video/pxafb.c | 2 ++ drivers/video/sh7760fb.c | 19 ++++++------------- drivers/video/sis/sis_main.c | 2 ++ drivers/video/sm501fb.c | 21 +++++++++++++-------- drivers/video/w100fb.c | 2 ++ include/linux/fb.h | 1 + 16 files changed, 74 insertions(+), 42 deletions(-) diff --git a/drivers/video/atafb.c b/drivers/video/atafb.c index 018850c116c..497ff8af03e 100644 --- a/drivers/video/atafb.c +++ b/drivers/video/atafb.c @@ -2414,7 +2414,10 @@ static int atafb_get_fix(struct fb_fix_screeninfo *fix, struct fb_info *info) if (err) return err; memset(fix, 0, sizeof(struct fb_fix_screeninfo)); - return fbhw->encode_fix(fix, &par); + mutex_lock(&info->mm_lock); + err = fbhw->encode_fix(fix, &par); + mutex_unlock(&info->mm_lock); + return err; } static int atafb_get_var(struct fb_var_screeninfo *var, struct fb_info *info) @@ -2743,7 +2746,9 @@ static int atafb_set_par(struct fb_info *info) /* Decode wanted screen parameters */ fbhw->decode_var(&info->var, par); + mutex_lock(&info->mm_lock); fbhw->encode_fix(&info->fix, par); + mutex_unlock(&info->mm_lock); /* Set new videomode */ ata_set_par(par); diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c index 5afd64482f5..cb88394ba99 100644 --- a/drivers/video/atmel_lcdfb.c +++ b/drivers/video/atmel_lcdfb.c @@ -270,7 +270,9 @@ static int atmel_lcdfb_alloc_video_memory(struct atmel_lcdfb_info *sinfo) smem_len = (var->xres_virtual * var->yres_virtual * ((var->bits_per_pixel + 7) / 8)); + mutex_lock(&info->mm_lock); info->fix.smem_len = max(smem_len, sinfo->smem_len); + mutex_unlock(&info->mm_lock); info->screen_base = dma_alloc_writecombine(info->device, info->fix.smem_len, (dma_addr_t *)&info->fix.smem_start, GFP_KERNEL); diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c index f8a09bf8d0c..53ea05645ff 100644 --- a/drivers/video/fbmem.c +++ b/drivers/video/fbmem.c @@ -1310,8 +1310,6 @@ static long fb_compat_ioctl(struct file *file, unsigned int cmd, static int fb_mmap(struct file *file, struct vm_area_struct * vma) -__acquires(&info->lock) -__releases(&info->lock) { int fbidx = iminor(file->f_path.dentry->d_inode); struct fb_info *info = registered_fb[fbidx]; @@ -1325,16 +1323,14 @@ __releases(&info->lock) off = vma->vm_pgoff << PAGE_SHIFT; if (!fb) return -ENODEV; + mutex_lock(&info->mm_lock); if (fb->fb_mmap) { int res; - mutex_lock(&info->lock); res = fb->fb_mmap(info, vma); - mutex_unlock(&info->lock); + mutex_unlock(&info->mm_lock); return res; } - mutex_lock(&info->lock); - /* frame buffer memory */ start = info->fix.smem_start; len = PAGE_ALIGN((start & ~PAGE_MASK) + info->fix.smem_len); @@ -1342,13 +1338,13 @@ __releases(&info->lock) /* memory mapped io */ off -= len; if (info->var.accel_flags) { - mutex_unlock(&info->lock); + mutex_unlock(&info->mm_lock); return -EINVAL; } start = info->fix.mmio_start; len = PAGE_ALIGN((start & ~PAGE_MASK) + info->fix.mmio_len); } - mutex_unlock(&info->lock); + mutex_unlock(&info->mm_lock); start &= PAGE_MASK; if ((vma->vm_end - vma->vm_start + off) > len) return -EINVAL; @@ -1518,6 +1514,7 @@ register_framebuffer(struct fb_info *fb_info) break; fb_info->node = i; mutex_init(&fb_info->lock); + mutex_init(&fb_info->mm_lock); fb_info->dev = device_create(fb_class, fb_info->device, MKDEV(FB_MAJOR, i), NULL, "fb%d", i); diff --git a/drivers/video/fsl-diu-fb.c b/drivers/video/fsl-diu-fb.c index f153c581cbd..0bf2190928d 100644 --- a/drivers/video/fsl-diu-fb.c +++ b/drivers/video/fsl-diu-fb.c @@ -750,24 +750,26 @@ static void update_lcdc(struct fb_info *info) static int map_video_memory(struct fb_info *info) { phys_addr_t phys; + u32 smem_len = info->fix.line_length * info->var.yres_virtual; pr_debug("info->var.xres_virtual = %d\n", info->var.xres_virtual); pr_debug("info->var.yres_virtual = %d\n", info->var.yres_virtual); pr_debug("info->fix.line_length = %d\n", info->fix.line_length); + pr_debug("MAP_VIDEO_MEMORY: smem_len = %u\n", smem_len); - info->fix.smem_len = info->fix.line_length * info->var.yres_virtual; - pr_debug("MAP_VIDEO_MEMORY: smem_len = %d\n", info->fix.smem_len); - info->screen_base = fsl_diu_alloc(info->fix.smem_len, &phys); + info->screen_base = fsl_diu_alloc(smem_len, &phys); if (info->screen_base == NULL) { printk(KERN_ERR "Unable to allocate fb memory\n"); return -ENOMEM; } + mutex_lock(&info->mm_lock); info->fix.smem_start = (unsigned long) phys; + info->fix.smem_len = smem_len; + mutex_unlock(&info->mm_lock); info->screen_size = info->fix.smem_len; pr_debug("Allocated fb @ paddr=0x%08lx, size=%d.\n", - info->fix.smem_start, - info->fix.smem_len); + info->fix.smem_start, info->fix.smem_len); pr_debug("screen base %p\n", info->screen_base); return 0; @@ -776,9 +778,11 @@ static int map_video_memory(struct fb_info *info) static void unmap_video_memory(struct fb_info *info) { fsl_diu_free(info->screen_base, info->fix.smem_len); + mutex_lock(&info->mm_lock); info->screen_base = NULL; info->fix.smem_start = 0; info->fix.smem_len = 0; + mutex_unlock(&info->mm_lock); } /* diff --git a/drivers/video/i810/i810_main.c b/drivers/video/i810/i810_main.c index 2e940199fc8..71960672d72 100644 --- a/drivers/video/i810/i810_main.c +++ b/drivers/video/i810/i810_main.c @@ -1090,8 +1090,10 @@ static int encode_fix(struct fb_fix_screeninfo *fix, struct fb_info *info) memset(fix, 0, sizeof(struct fb_fix_screeninfo)); strcpy(fix->id, "I810"); + mutex_lock(&info->mm_lock); fix->smem_start = par->fb.physical; fix->smem_len = par->fb.size; + mutex_unlock(&info->mm_lock); fix->type = FB_TYPE_PACKED_PIXELS; fix->type_aux = 0; fix->xpanstep = 8; diff --git a/drivers/video/matrox/matroxfb_base.c b/drivers/video/matrox/matroxfb_base.c index 8e7a275df50..59c3a2e1491 100644 --- a/drivers/video/matrox/matroxfb_base.c +++ b/drivers/video/matrox/matroxfb_base.c @@ -724,8 +724,10 @@ static void matroxfb_update_fix(WPMINFO2) struct fb_fix_screeninfo *fix = &ACCESS_FBINFO(fbcon).fix; DBG(__func__) + mutex_lock(&ACCESS_FBINFO(fbcon).mm_lock); fix->smem_start = ACCESS_FBINFO(video.base) + ACCESS_FBINFO(curr.ydstorg.bytes); fix->smem_len = ACCESS_FBINFO(video.len_usable) - ACCESS_FBINFO(curr.ydstorg.bytes); + mutex_unlock(&ACCESS_FBINFO(fbcon).mm_lock); } static int matroxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) @@ -2081,6 +2083,7 @@ static int matroxfb_probe(struct pci_dev* pdev, const struct pci_device_id* dumm spin_lock_init(&ACCESS_FBINFO(lock.accel)); init_rwsem(&ACCESS_FBINFO(crtc2.lock)); init_rwsem(&ACCESS_FBINFO(altout.lock)); + mutex_init(&ACCESS_FBINFO(fbcon).mm_lock); ACCESS_FBINFO(irq_flags) = 0; init_waitqueue_head(&ACCESS_FBINFO(crtc1.vsync.wait)); init_waitqueue_head(&ACCESS_FBINFO(crtc2.vsync.wait)); diff --git a/drivers/video/matrox/matroxfb_crtc2.c b/drivers/video/matrox/matroxfb_crtc2.c index 7ac4c5f6145..909e10a1189 100644 --- a/drivers/video/matrox/matroxfb_crtc2.c +++ b/drivers/video/matrox/matroxfb_crtc2.c @@ -289,13 +289,16 @@ static int matroxfb_dh_release(struct fb_info* info, int user) { #undef m2info } -static void matroxfb_dh_init_fix(struct matroxfb_dh_fb_info *m2info) { +static void matroxfb_dh_init_fix(struct matroxfb_dh_fb_info *m2info) +{ struct fb_fix_screeninfo *fix = &m2info->fbcon.fix; strcpy(fix->id, "MATROX DH"); + mutex_lock(&m2info->fbcon.mm_lock); fix->smem_start = m2info->video.base; fix->smem_len = m2info->video.len_usable; + mutex_unlock(&m2info->fbcon.mm_lock); fix->ypanstep = 1; fix->ywrapstep = 0; fix->xpanstep = 8; /* TBD */ diff --git a/drivers/video/mx3fb.c b/drivers/video/mx3fb.c index b7af5256e88..567fb944bd2 100644 --- a/drivers/video/mx3fb.c +++ b/drivers/video/mx3fb.c @@ -669,7 +669,7 @@ static uint32_t bpp_to_pixfmt(int bpp) } static int mx3fb_blank(int blank, struct fb_info *fbi); -static int mx3fb_map_video_memory(struct fb_info *fbi); +static int mx3fb_map_video_memory(struct fb_info *fbi, unsigned int mem_len); static int mx3fb_unmap_video_memory(struct fb_info *fbi); /** @@ -742,8 +742,7 @@ static int mx3fb_set_par(struct fb_info *fbi) if (fbi->fix.smem_start) mx3fb_unmap_video_memory(fbi); - fbi->fix.smem_len = mem_len; - if (mx3fb_map_video_memory(fbi) < 0) { + if (mx3fb_map_video_memory(fbi, mem_len) < 0) { mutex_unlock(&mx3_fbi->mutex); return -ENOMEM; } @@ -1198,6 +1197,7 @@ static int mx3fb_resume(struct platform_device *pdev) /** * mx3fb_map_video_memory() - allocates the DRAM memory for the frame buffer. * @fbi: framebuffer information pointer + * @mem_len: length of mapped memory * @return: Error code indicating success or failure * * This buffer is remapped into a non-cached, non-buffered, memory region to @@ -1205,23 +1205,26 @@ static int mx3fb_resume(struct platform_device *pdev) * area is remapped, all virtual memory access to the video memory should occur * at the new region. */ -static int mx3fb_map_video_memory(struct fb_info *fbi) +static int mx3fb_map_video_memory(struct fb_info *fbi, unsigned int mem_len) { int retval = 0; dma_addr_t addr; fbi->screen_base = dma_alloc_writecombine(fbi->device, - fbi->fix.smem_len, + mem_len, &addr, GFP_DMA); if (!fbi->screen_base) { dev_err(fbi->device, "Cannot allocate %u bytes framebuffer memory\n", - fbi->fix.smem_len); + mem_len); retval = -EBUSY; goto err0; } + mutex_lock(&fbi->mm_lock); fbi->fix.smem_start = addr; + fbi->fix.smem_len = mem_len; + mutex_unlock(&fbi->mm_lock); dev_dbg(fbi->device, "allocated fb @ p=0x%08x, v=0x%p, size=%d.\n", (uint32_t) fbi->fix.smem_start, fbi->screen_base, fbi->fix.smem_len); @@ -1251,8 +1254,10 @@ static int mx3fb_unmap_video_memory(struct fb_info *fbi) fbi->screen_base, fbi->fix.smem_start); fbi->screen_base = 0; + mutex_lock(&fbi->mm_lock); fbi->fix.smem_start = 0; fbi->fix.smem_len = 0; + mutex_unlock(&fbi->mm_lock); return 0; } diff --git a/drivers/video/omap/omapfb_main.c b/drivers/video/omap/omapfb_main.c index 060d72fe57c..4ea99bfc37b 100644 --- a/drivers/video/omap/omapfb_main.c +++ b/drivers/video/omap/omapfb_main.c @@ -393,8 +393,10 @@ static void set_fb_fix(struct fb_info *fbi) rg = &plane->fbdev->mem_desc.region[plane->idx]; fbi->screen_base = rg->vaddr; + mutex_lock(&fbi->mm_lock); fix->smem_start = rg->paddr; fix->smem_len = rg->size; + mutex_unlock(&fbi->mm_lock); fix->type = FB_TYPE_PACKED_PIXELS; bpp = var->bits_per_pixel; @@ -886,8 +888,10 @@ static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi) * plane memory is dealloce'd, the other * screen parameters in var / fix are invalid. */ + mutex_lock(&fbi->mm_lock); fbi->fix.smem_start = 0; fbi->fix.smem_len = 0; + mutex_unlock(&fbi->mm_lock); } } } diff --git a/drivers/video/platinumfb.c b/drivers/video/platinumfb.c index 03b3670130a..bacfabd9ce1 100644 --- a/drivers/video/platinumfb.c +++ b/drivers/video/platinumfb.c @@ -141,7 +141,9 @@ static int platinumfb_set_par (struct fb_info *info) offset = 0x10; info->screen_base = pinfo->frame_buffer + init->fb_offset + offset; + mutex_lock(&info->mm_lock); info->fix.smem_start = (pinfo->frame_buffer_phys) + init->fb_offset + offset; + mutex_unlock(&info->mm_lock); info->fix.visual = (pinfo->cmode == CMODE_8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR; info->fix.line_length = vmode_attrs[pinfo->vmode-1].hres * (1<cmode) diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c index 0889d50c328..6506117c134 100644 --- a/drivers/video/pxafb.c +++ b/drivers/video/pxafb.c @@ -815,8 +815,10 @@ static int overlayfb_map_video_memory(struct pxafb_layer *ofb) ofb->video_mem_phys = virt_to_phys(ofb->video_mem); ofb->video_mem_size = size; + mutex_lock(&ofb->fb.mm_lock); ofb->fb.fix.smem_start = ofb->video_mem_phys; ofb->fb.fix.smem_len = ofb->fb.fix.line_length * var->yres_virtual; + mutex_unlock(&ofb->fb.mm_lock); ofb->fb.screen_base = ofb->video_mem; return 0; } diff --git a/drivers/video/sh7760fb.c b/drivers/video/sh7760fb.c index 653bdfee305..9f6d6e61f0c 100644 --- a/drivers/video/sh7760fb.c +++ b/drivers/video/sh7760fb.c @@ -120,18 +120,6 @@ static int sh7760_setcolreg (u_int regno, return 0; } -static void encode_fix(struct fb_fix_screeninfo *fix, struct fb_info *info, - unsigned long stride) -{ - memset(fix, 0, sizeof(struct fb_fix_screeninfo)); - strcpy(fix->id, "sh7760-lcdc"); - - fix->smem_start = (unsigned long)info->screen_base; - fix->smem_len = info->screen_size; - - fix->line_length = stride; -} - static int sh7760fb_get_color_info(struct device *dev, u16 lddfr, int *bpp, int *gray) { @@ -334,7 +322,8 @@ static int sh7760fb_set_par(struct fb_info *info) iowrite32(ldsarl, par->base + LDSARL); /* mem for lower half of DSTN */ - encode_fix(&info->fix, info, stride); + info->fix.line_length = stride; + sh7760fb_check_var(&info->var, info); sh7760fb_blank(FB_BLANK_UNBLANK, info); /* panel on! */ @@ -435,6 +424,8 @@ static int sh7760fb_alloc_mem(struct fb_info *info) info->screen_base = fbmem; info->screen_size = vram; + info->fix.smem_start = (unsigned long)info->screen_base; + info->fix.smem_len = info->screen_size; return 0; } @@ -520,6 +511,8 @@ static int __devinit sh7760fb_probe(struct platform_device *pdev) info->var.transp.length = 0; info->var.transp.msb_right = 0; + strcpy(info->fix.id, "sh7760-lcdc"); + /* set the DON2 bit now, before cmap allocation, as it will randomize * palette memory. */ diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c index 7072d19080d..fd33455389b 100644 --- a/drivers/video/sis/sis_main.c +++ b/drivers/video/sis/sis_main.c @@ -1847,8 +1847,10 @@ sisfb_get_fix(struct fb_fix_screeninfo *fix, int con, struct fb_info *info) strcpy(fix->id, ivideo->myid); + mutex_lock(&info->mm_lock); fix->smem_start = ivideo->video_base + ivideo->video_offset; fix->smem_len = ivideo->sisfb_mem; + mutex_unlock(&info->mm_lock); fix->type = FB_TYPE_PACKED_PIXELS; fix->type_aux = 0; fix->visual = (ivideo->video_bpp == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR; diff --git a/drivers/video/sm501fb.c b/drivers/video/sm501fb.c index eb5d73a0670..98f24f0ec00 100644 --- a/drivers/video/sm501fb.c +++ b/drivers/video/sm501fb.c @@ -145,7 +145,7 @@ static inline void sm501fb_sync_regs(struct sm501fb_info *info) #define SM501_MEMF_ACCEL (8) static int sm501_alloc_mem(struct sm501fb_info *inf, struct sm501_mem *mem, - unsigned int why, size_t size) + unsigned int why, size_t size, u32 smem_len) { struct sm501fb_par *par; struct fb_info *fbi; @@ -172,7 +172,7 @@ static int sm501_alloc_mem(struct sm501fb_info *inf, struct sm501_mem *mem, if (ptr > 0) ptr &= ~(PAGE_SIZE - 1); - if (fbi && ptr < fbi->fix.smem_len) + if (fbi && ptr < smem_len) return -ENOMEM; break; @@ -197,7 +197,7 @@ static int sm501_alloc_mem(struct sm501fb_info *inf, struct sm501_mem *mem, case SM501_MEMF_ACCEL: fbi = inf->fb[HEAD_CRT]; - ptr = fbi ? fbi->fix.smem_len : 0; + ptr = fbi ? smem_len : 0; fbi = inf->fb[HEAD_PANEL]; if (fbi) { @@ -413,6 +413,7 @@ static int sm501fb_set_par_common(struct fb_info *info, unsigned int mem_type; unsigned int clock_type; unsigned int head_addr; + unsigned int smem_len; dev_dbg(fbi->dev, "%s: %dx%d, bpp = %d, virtual %dx%d\n", __func__, var->xres, var->yres, var->bits_per_pixel, @@ -453,18 +454,20 @@ static int sm501fb_set_par_common(struct fb_info *info, /* allocate fb memory within 501 */ info->fix.line_length = (var->xres_virtual * var->bits_per_pixel)/8; - info->fix.smem_len = info->fix.line_length * var->yres_virtual; + smem_len = info->fix.line_length * var->yres_virtual; dev_dbg(fbi->dev, "%s: line length = %u\n", __func__, info->fix.line_length); - if (sm501_alloc_mem(fbi, &par->screen, mem_type, - info->fix.smem_len)) { + if (sm501_alloc_mem(fbi, &par->screen, mem_type, smem_len, smem_len)) { dev_err(fbi->dev, "no memory available\n"); return -ENOMEM; } + mutex_lock(&info->mm_lock); info->fix.smem_start = fbi->fbmem_res->start + par->screen.sm_addr; + info->fix.smem_len = smem_len; + mutex_unlock(&info->mm_lock); info->screen_base = fbi->fbmem + par->screen.sm_addr; info->screen_size = info->fix.smem_len; @@ -637,7 +640,8 @@ static int sm501fb_set_par_crt(struct fb_info *info) if ((control & SM501_DC_CRT_CONTROL_SEL) == 0) { /* the head is displaying panel data... */ - sm501_alloc_mem(fbi, &par->screen, SM501_MEMF_CRT, 0); + sm501_alloc_mem(fbi, &par->screen, SM501_MEMF_CRT, 0, + info->fix.smem_len); goto out_update; } @@ -1289,7 +1293,8 @@ static int sm501_init_cursor(struct fb_info *fbi, unsigned int reg_base) par->cursor_regs = info->regs + reg_base; - ret = sm501_alloc_mem(info, &par->cursor, SM501_MEMF_CURSOR, 1024); + ret = sm501_alloc_mem(info, &par->cursor, SM501_MEMF_CURSOR, 1024, + fbi->fix.smem_len); if (ret < 0) return ret; diff --git a/drivers/video/w100fb.c b/drivers/video/w100fb.c index d0674f1e3f1..8a141c2c637 100644 --- a/drivers/video/w100fb.c +++ b/drivers/video/w100fb.c @@ -523,6 +523,7 @@ static int w100fb_set_par(struct fb_info *info) info->fix.ywrapstep = 0; info->fix.line_length = par->xres * BITS_PER_PIXEL / 8; + mutex_lock(&info->mm_lock); if ((par->xres*par->yres*BITS_PER_PIXEL/8) > (MEM_INT_SIZE+1)) { par->extmem_active = 1; info->fix.smem_len = par->mach->mem->size+1; @@ -530,6 +531,7 @@ static int w100fb_set_par(struct fb_info *info) par->extmem_active = 0; info->fix.smem_len = MEM_INT_SIZE+1; } + mutex_unlock(&info->mm_lock); w100fb_activate_var(par); } diff --git a/include/linux/fb.h b/include/linux/fb.h index dd68358996b..f847df9e99b 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -819,6 +819,7 @@ struct fb_info { int node; int flags; struct mutex lock; /* Lock for open/release/ioctl funcs */ + struct mutex mm_lock; /* Lock for fb_mmap and smem_* fields */ struct fb_var_screeninfo var; /* Current var */ struct fb_fix_screeninfo fix; /* Current fix */ struct fb_monspecs monspecs; /* Current Monitor specs */ -- cgit v1.2.3 From 529ba0d9669386157457a1cb96294d2fe79b3f88 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Tue, 30 Jun 2009 11:41:30 -0700 Subject: spi: bitbang bugfix in message setup Bugfix to spi_bitbang infrastructure: make sure to always set transfer parameters on the first pass through the message's per-transfer loop. This can matter with drivers that replace the per-word or per-buffer transfer primitives, on busses with multiple SPI devices. Previously, this could have started messages using the settings left after previous messages. The problem was observed when a high speed chip (m25p80 type flash) was running very slowly because a low speed device (avr8 microcontroller) had previously used the bus. Similar faults could have driven the low speed device too fast, or used an unexpected word size. Acked-by: Steven A. Falco Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi_bitbang.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-) diff --git a/drivers/spi/spi_bitbang.c b/drivers/spi/spi_bitbang.c index 2a5abc08e85..f1db395dd88 100644 --- a/drivers/spi/spi_bitbang.c +++ b/drivers/spi/spi_bitbang.c @@ -258,6 +258,11 @@ static void bitbang_work(struct work_struct *work) struct spi_bitbang *bitbang = container_of(work, struct spi_bitbang, work); unsigned long flags; + int do_setup = -1; + int (*setup_transfer)(struct spi_device *, + struct spi_transfer *); + + setup_transfer = bitbang->setup_transfer; spin_lock_irqsave(&bitbang->lock, flags); bitbang->busy = 1; @@ -269,8 +274,6 @@ static void bitbang_work(struct work_struct *work) unsigned tmp; unsigned cs_change; int status; - int (*setup_transfer)(struct spi_device *, - struct spi_transfer *); m = container_of(bitbang->queue.next, struct spi_message, queue); @@ -287,19 +290,19 @@ static void bitbang_work(struct work_struct *work) tmp = 0; cs_change = 1; status = 0; - setup_transfer = NULL; list_for_each_entry (t, &m->transfers, transfer_list) { - /* override or restore speed and wordsize */ - if (t->speed_hz || t->bits_per_word) { - setup_transfer = bitbang->setup_transfer; + /* override speed or wordsize? */ + if (t->speed_hz || t->bits_per_word) + do_setup = 1; + + /* init (-1) or override (1) transfer params */ + if (do_setup != 0) { if (!setup_transfer) { status = -ENOPROTOOPT; break; } - } - if (setup_transfer) { status = setup_transfer(spi, t); if (status < 0) break; @@ -363,9 +366,10 @@ static void bitbang_work(struct work_struct *work) m->status = status; m->complete(m->context); - /* restore speed and wordsize */ - if (setup_transfer) + /* restore speed and wordsize if it was overridden */ + if (do_setup == 1) setup_transfer(spi, NULL); + do_setup = 0; /* normally deactivate chipselect ... unless no error and * cs_change has hinted that the next message will probably -- cgit v1.2.3 From 8bc1ad7dd301b7ca7454013519fa92e8c53655ff Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Tue, 30 Jun 2009 11:41:31 -0700 Subject: kernel/resource.c: fix sign extension in reserve_setup() When the 32-bit signed quantities get assigned to the u64 resource_size_t, they are incorrectly sign-extended. Addresses http://bugzilla.kernel.org/show_bug.cgi?id=13253 Addresses http://bugzilla.kernel.org/show_bug.cgi?id=9905 Signed-off-by: Zhang Rui Reported-by: Leann Ogasawara Cc: Pierre Ossman Reported-by: Tested-by: Cc: Cc: Jesse Barnes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/resource.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/resource.c b/kernel/resource.c index ac5f3a36923..78b087221c1 100644 --- a/kernel/resource.c +++ b/kernel/resource.c @@ -787,7 +787,7 @@ static int __init reserve_setup(char *str) static struct resource reserve[MAXRESERVE]; for (;;) { - int io_start, io_num; + unsigned int io_start, io_num; int x = reserved; if (get_option (&str, &io_start) != 2) -- cgit v1.2.3 From b4f90189dc2c7a7e6926ea480ae3404ec3de4581 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Tue, 30 Jun 2009 11:41:32 -0700 Subject: MAINTAINERS: STARFIRE/DURALAN update Ion's cs.columbia.edu email address no longer works. Signed-off-by: Joe Perches Acked-by: Ion Badulescu Cc: "David S. Miller" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- MAINTAINERS | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index 92fe0796cd1..6a89e312a7b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5576,8 +5576,8 @@ F: drivers/staging/ STARFIRE/DURALAN NETWORK DRIVER P: Ion Badulescu -M: ionut@cs.columbia.edu -S: Maintained +M: ionut@badula.org +S: Odd Fixes F: drivers/net/starfire* STARMODE RADIO IP (STRIP) PROTOCOL DRIVER -- cgit v1.2.3 From df279ca8966c3de83105428e3391ab17690802a9 Mon Sep 17 00:00:00 2001 From: Renaud Lottiaux Date: Tue, 30 Jun 2009 11:41:34 -0700 Subject: bsdacct: fix access to invalid filp in acct_on() The file opened in acct_on and freshly stored in the ns->bacct struct can be closed in acct_file_reopen by a concurrent call after we release acct_lock and before we call mntput(file->f_path.mnt). Record file->f_path.mnt in a local variable and use this variable only. Signed-off-by: Renaud Lottiaux Signed-off-by: Louis Rilling Cc: Al Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/acct.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/kernel/acct.c b/kernel/acct.c index 7afa3156416..9f3391090b3 100644 --- a/kernel/acct.c +++ b/kernel/acct.c @@ -215,6 +215,7 @@ static void acct_file_reopen(struct bsd_acct_struct *acct, struct file *file, static int acct_on(char *name) { struct file *file; + struct vfsmount *mnt; int error; struct pid_namespace *ns; struct bsd_acct_struct *acct = NULL; @@ -256,11 +257,12 @@ static int acct_on(char *name) acct = NULL; } - mnt_pin(file->f_path.mnt); + mnt = file->f_path.mnt; + mnt_pin(mnt); acct_file_reopen(ns->bacct, file, ns); spin_unlock(&acct_lock); - mntput(file->f_path.mnt); /* it's pinned, now give up active reference */ + mntput(mnt); /* it's pinned, now give up active reference */ kfree(acct); return 0; -- cgit v1.2.3 From d7831a0bdf06b9f722b947bb0c205ff7d77cebd8 Mon Sep 17 00:00:00 2001 From: Richard Kennedy Date: Tue, 30 Jun 2009 11:41:35 -0700 Subject: mm: prevent balance_dirty_pages() from doing too much work balance_dirty_pages can overreact and move all of the dirty pages to writeback unnecessarily. balance_dirty_pages makes its decision to throttle based on the number of dirty plus writeback pages that are over the calculated limit,so it will continue to move pages even when there are plenty of pages in writeback and less than the threshold still dirty. This allows it to overshoot its limits and move all the dirty pages to writeback while waiting for the drives to catch up and empty the writeback list. A simple fio test easily demonstrates this problem. fio --name=f1 --directory=/disk1 --size=2G -rw=write --name=f2 --directory=/disk2 --size=1G --rw=write --startdelay=10 This is the simplest fix I could find, but I'm not entirely sure that it alone will be enough for all cases. But it certainly is an improvement on my desktop machine writing to 2 disks. Do we need something more for machines with large arrays where bdi_threshold * number_of_drives is greater than the dirty_ratio ? Signed-off-by: Richard Kennedy Acked-by: Peter Zijlstra Cc: Jens Axboe Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/page-writeback.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 7b0dcea4935..7687879253b 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -541,8 +541,11 @@ static void balance_dirty_pages(struct address_space *mapping) * filesystems (i.e. NFS) in which data may have been * written to the server's write cache, but has not yet * been flushed to permanent storage. + * Only move pages to writeback if this bdi is over its + * threshold otherwise wait until the disk writes catch + * up. */ - if (bdi_nr_reclaimable) { + if (bdi_nr_reclaimable > bdi_thresh) { writeback_inodes(&wbc); pages_written += write_chunk - wbc.nr_to_write; get_dirty_limits(&background_thresh, &dirty_thresh, -- cgit v1.2.3 From b37f2d4de6dfce4bfd6df311af80e4d61458ee1e Mon Sep 17 00:00:00 2001 From: Nikanth Karthikesan Date: Tue, 30 Jun 2009 11:41:36 -0700 Subject: cpusets: document adding/removing cpus to cpuset elaborately By writing a tasks's pid to the file, a process adds that task to that cgroup/cpuset. But to add a cpu/mem to a cpuset, the new list of cpus should be written to the cpuset.mems file which would replace the old list of cpus. Make this clearer in the documentation. Signed-off-by: Nikanth Karthikesan Signed-off-by: Li Zefan Acked-by: Paul Menage Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/cgroups/cpusets.txt | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/Documentation/cgroups/cpusets.txt b/Documentation/cgroups/cpusets.txt index f9ca389dddf..1d7e9784439 100644 --- a/Documentation/cgroups/cpusets.txt +++ b/Documentation/cgroups/cpusets.txt @@ -777,6 +777,18 @@ in cpuset directories: # /bin/echo 1-4 > cpus -> set cpus list to cpus 1,2,3,4 # /bin/echo 1,2,3,4 > cpus -> set cpus list to cpus 1,2,3,4 +To add a CPU to a cpuset, write the new list of CPUs including the +CPU to be added. To add 6 to the above cpuset: + +# /bin/echo 1-4,6 > cpus -> set cpus list to cpus 1,2,3,4,6 + +Similarly to remove a CPU from a cpuset, write the new list of CPUs +without the CPU to be removed. + +To remove all the CPUs: + +# /bin/echo "" > cpus -> clear cpus list + 2.3 Setting flags ----------------- -- cgit v1.2.3 From 66918dcdf91ad101194c749c18099e836ba3de2b Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 30 Jun 2009 11:41:37 -0700 Subject: x86: only clear node_states for 64bit Nathan reported that | commit 73d60b7f747176dbdff826c4127d22e1fd3f9f74 | Author: Yinghai Lu | Date: Tue Jun 16 15:33:00 2009 -0700 | | page-allocator: clear N_HIGH_MEMORY map before we set it again | | SRAT tables may contains nodes of very small size. The arch code may | decide to not activate such a node. However, currently the early boot | code sets N_HIGH_MEMORY for such nodes. These nodes therefore seem to be | active although these nodes have no present pages. | | For 64bit N_HIGH_MEMORY == N_NORMAL_MEMORY, so that works for 64 bit too unintentionally and incorrectly clears the cpuset.mems cgroup attribute on an i386 kvm guest, meaning that cpuset.mems can not be used. Fix this by only clearing node_states[N_NORMAL_MEMORY] for 64bit only. and need to do save/restore for that in find_zone_movable_pfn Reported-by: Nathan Lynch Tested-by: Nathan Lynch Signed-off-by: Yinghai Lu Cc: Christoph Lameter Cc: Ingo Molnar , Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86/mm/init_64.c | 2 ++ mm/page_alloc.c | 13 +++++++------ 2 files changed, 9 insertions(+), 6 deletions(-) diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index c4378f4fd4a..b177652251a 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -598,6 +598,8 @@ void __init paging_init(void) sparse_memory_present_with_active_regions(MAX_NUMNODES); sparse_init(); + /* clear the default setting with node 0 */ + nodes_clear(node_states[N_NORMAL_MEMORY]); free_area_init_nodes(max_zone_pfns); } diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 5d714f8fb30..e0f2cdf9d8b 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4032,6 +4032,8 @@ static void __init find_zone_movable_pfns_for_nodes(unsigned long *movable_pfn) int i, nid; unsigned long usable_startpfn; unsigned long kernelcore_node, kernelcore_remaining; + /* save the state before borrow the nodemask */ + nodemask_t saved_node_state = node_states[N_HIGH_MEMORY]; unsigned long totalpages = early_calculate_totalpages(); int usable_nodes = nodes_weight(node_states[N_HIGH_MEMORY]); @@ -4059,7 +4061,7 @@ static void __init find_zone_movable_pfns_for_nodes(unsigned long *movable_pfn) /* If kernelcore was not specified, there is no ZONE_MOVABLE */ if (!required_kernelcore) - return; + goto out; /* usable_startpfn is the lowest possible pfn ZONE_MOVABLE can be at */ find_usable_zone_for_movable(); @@ -4158,6 +4160,10 @@ restart: for (nid = 0; nid < MAX_NUMNODES; nid++) zone_movable_pfn[nid] = roundup(zone_movable_pfn[nid], MAX_ORDER_NR_PAGES); + +out: + /* restore the node_state */ + node_states[N_HIGH_MEMORY] = saved_node_state; } /* Any regular memory on that node ? */ @@ -4242,11 +4248,6 @@ void __init free_area_init_nodes(unsigned long *max_zone_pfn) early_node_map[i].start_pfn, early_node_map[i].end_pfn); - /* - * find_zone_movable_pfns_for_nodes/early_calculate_totalpages init - * that node_mask, clear it at first - */ - nodes_clear(node_states[N_HIGH_MEMORY]); /* Initialise every node */ mminit_verify_pageflags_layout(); setup_nr_node_ids(); -- cgit v1.2.3 From 79d7f4ee23d41571d9e4663521b5e6604c55729a Mon Sep 17 00:00:00 2001 From: Baruch Siach Date: Tue, 30 Jun 2009 11:41:38 -0700 Subject: gpio: pl061: fix probe error handling code Note that IRQ has not been initialized when kmalloc() fails. Also, use DECLARE_BITMAP() to make the code clearer. Signed-off-by: Baruch Siach Cc: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/gpio/pl061.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpio/pl061.c b/drivers/gpio/pl061.c index aa8e7cb020d..80e48398669 100644 --- a/drivers/gpio/pl061.c +++ b/drivers/gpio/pl061.c @@ -221,7 +221,7 @@ static int __init pl061_probe(struct amba_device *dev, struct amba_id *id) struct pl061_gpio *chip; struct list_head *chip_list; int ret, irq, i; - static unsigned long init_irq[BITS_TO_LONGS(NR_IRQS)]; + static DECLARE_BITMAP(init_irq, NR_IRQS); pdata = dev->dev.platform_data; if (pdata == NULL) @@ -280,6 +280,7 @@ static int __init pl061_probe(struct amba_device *dev, struct amba_id *id) if (!test_and_set_bit(irq, init_irq)) { /* list initialized? */ chip_list = kmalloc(sizeof(*chip_list), GFP_KERNEL); if (chip_list == NULL) { + clear_bit(irq, init_irq); ret = -ENOMEM; goto iounmap; } -- cgit v1.2.3 From 50efacf6711e6c75595afd9b92aa15c1e4f7c79d Mon Sep 17 00:00:00 2001 From: Baruch Siach Date: Tue, 30 Jun 2009 11:41:39 -0700 Subject: gpio: pl061: fix IRQ handling for GPIOs >= PL061_GPIO_NR IRQ handling is wrong for any GPIO >= PL061_GPIO_NR. Fix this by implementing and using a proper .to_irq method. Signed-off-by: Baruch Siach Cc: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/gpio/pl061.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/drivers/gpio/pl061.c b/drivers/gpio/pl061.c index 80e48398669..4ee4c8367a3 100644 --- a/drivers/gpio/pl061.c +++ b/drivers/gpio/pl061.c @@ -109,6 +109,16 @@ static void pl061_set_value(struct gpio_chip *gc, unsigned offset, int value) writeb(!!value << offset, chip->base + (1 << (offset + 2))); } +static int pl061_to_irq(struct gpio_chip *gc, unsigned offset) +{ + struct pl061_gpio *chip = container_of(gc, struct pl061_gpio, gc); + + if (chip->irq_base == (unsigned) -1) + return -EINVAL; + + return chip->irq_base + offset; +} + /* * PL061 GPIO IRQ */ @@ -200,7 +210,7 @@ static void pl061_irq_handler(unsigned irq, struct irq_desc *desc) desc->chip->ack(irq); list_for_each(ptr, chip_list) { unsigned long pending; - int gpio; + int offset; chip = list_entry(ptr, struct pl061_gpio, list); pending = readb(chip->base + GPIOMIS); @@ -209,8 +219,8 @@ static void pl061_irq_handler(unsigned irq, struct irq_desc *desc) if (pending == 0) continue; - for_each_bit(gpio, &pending, PL061_GPIO_NR) - generic_handle_irq(gpio_to_irq(gpio)); + for_each_bit(offset, &pending, PL061_GPIO_NR) + generic_handle_irq(pl061_to_irq(&chip->gc, offset)); } desc->chip->unmask(irq); } @@ -251,6 +261,7 @@ static int __init pl061_probe(struct amba_device *dev, struct amba_id *id) chip->gc.direction_output = pl061_direction_output; chip->gc.get = pl061_get_value; chip->gc.set = pl061_set_value; + chip->gc.to_irq = pl061_to_irq; chip->gc.base = pdata->gpio_base; chip->gc.ngpio = PL061_GPIO_NR; chip->gc.label = dev_name(&dev->dev); -- cgit v1.2.3 From eafad22a05fdaca60f06433ffe8810aaa920d539 Mon Sep 17 00:00:00 2001 From: Ville Syrjala Date: Tue, 30 Jun 2009 11:41:40 -0700 Subject: atyfb: fix HP OmniBook 500 reboot hang Apparently HP OmniBook 500's BIOS doesn't like the way atyfb reprograms the hardware. The BIOS will simply hang after a reboot. Fix the problem by restoring the hardware to it's original state on reboot. Signed-off-by: Ville Syrjala Cc: Mikulas Patocka Cc: Krzysztof Helt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/aty/atyfb.h | 2 + drivers/video/aty/atyfb_base.c | 89 +++++++++++++++++++++++++++++++++++++----- 2 files changed, 82 insertions(+), 9 deletions(-) diff --git a/drivers/video/aty/atyfb.h b/drivers/video/aty/atyfb.h index 7691e73823d..0369653b5d8 100644 --- a/drivers/video/aty/atyfb.h +++ b/drivers/video/aty/atyfb.h @@ -187,6 +187,8 @@ struct atyfb_par { int mtrr_reg; #endif u32 mem_cntl; + struct crtc saved_crtc; + union aty_pll saved_pll; }; /* diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c index 1207c208a30..06782906daf 100644 --- a/drivers/video/aty/atyfb_base.c +++ b/drivers/video/aty/atyfb_base.c @@ -66,6 +66,8 @@ #include #include #include +#include +#include #include #include @@ -249,8 +251,6 @@ static int aty_init(struct fb_info *info); static int store_video_par(char *videopar, unsigned char m64_num); #endif -static struct crtc saved_crtc; -static union aty_pll saved_pll; static void aty_get_crtc(const struct atyfb_par *par, struct crtc *crtc); static void aty_set_crtc(const struct atyfb_par *par, const struct crtc *crtc); @@ -261,6 +261,8 @@ static void set_off_pitch(struct atyfb_par *par, const struct fb_info *info); static int read_aty_sense(const struct atyfb_par *par); #endif +static DEFINE_MUTEX(reboot_lock); +static struct fb_info *reboot_info; /* * Interface used by the world @@ -2390,9 +2392,9 @@ static int __devinit aty_init(struct fb_info *info) #endif /* CONFIG_FB_ATY_CT */ /* save previous video mode */ - aty_get_crtc(par, &saved_crtc); + aty_get_crtc(par, &par->saved_crtc); if(par->pll_ops->get_pll) - par->pll_ops->get_pll(info, &saved_pll); + par->pll_ops->get_pll(info, &par->saved_pll); par->mem_cntl = aty_ld_le32(MEM_CNTL, par); gtb_memsize = M64_HAS(GTB_DSP); @@ -2667,8 +2669,8 @@ static int __devinit aty_init(struct fb_info *info) aty_init_exit: /* restore video mode */ - aty_set_crtc(par, &saved_crtc); - par->pll_ops->set_pll(info, &saved_pll); + aty_set_crtc(par, &par->saved_crtc); + par->pll_ops->set_pll(info, &par->saved_pll); #ifdef CONFIG_MTRR if (par->mtrr_reg >= 0) { @@ -3502,6 +3504,11 @@ static int __devinit atyfb_pci_probe(struct pci_dev *pdev, const struct pci_devi par->mmap_map[1].prot_flag = _PAGE_E; #endif /* __sparc__ */ + mutex_lock(&reboot_lock); + if (!reboot_info) + reboot_info = info; + mutex_unlock(&reboot_lock); + return 0; err_release_io: @@ -3614,8 +3621,8 @@ static void __devexit atyfb_remove(struct fb_info *info) struct atyfb_par *par = (struct atyfb_par *) info->par; /* restore video mode */ - aty_set_crtc(par, &saved_crtc); - par->pll_ops->set_pll(info, &saved_pll); + aty_set_crtc(par, &par->saved_crtc); + par->pll_ops->set_pll(info, &par->saved_pll); unregister_framebuffer(info); @@ -3661,6 +3668,11 @@ static void __devexit atyfb_pci_remove(struct pci_dev *pdev) { struct fb_info *info = pci_get_drvdata(pdev); + mutex_lock(&reboot_lock); + if (reboot_info == info) + reboot_info = NULL; + mutex_unlock(&reboot_lock); + atyfb_remove(info); } @@ -3808,6 +3820,56 @@ static int __init atyfb_setup(char *options) } #endif /* MODULE */ +static int atyfb_reboot_notify(struct notifier_block *nb, + unsigned long code, void *unused) +{ + struct atyfb_par *par; + + if (code != SYS_RESTART) + return NOTIFY_DONE; + + mutex_lock(&reboot_lock); + + if (!reboot_info) + goto out; + + if (!lock_fb_info(reboot_info)) + goto out; + + par = reboot_info->par; + + /* + * HP OmniBook 500's BIOS doesn't like the state of the + * hardware after atyfb has been used. Restore the hardware + * to the original state to allow successful reboots. + */ + aty_set_crtc(par, &par->saved_crtc); + par->pll_ops->set_pll(reboot_info, &par->saved_pll); + + unlock_fb_info(reboot_info); + out: + mutex_unlock(&reboot_lock); + + return NOTIFY_DONE; +} + +static struct notifier_block atyfb_reboot_notifier = { + .notifier_call = atyfb_reboot_notify, +}; + +static const struct dmi_system_id atyfb_reboot_ids[] = { + { + .ident = "HP OmniBook 500", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP OmniBook PC"), + DMI_MATCH(DMI_PRODUCT_VERSION, "HP OmniBook 500 FA"), + }, + }, + + { } +}; + static int __init atyfb_init(void) { int err1 = 1, err2 = 1; @@ -3826,11 +3888,20 @@ static int __init atyfb_init(void) err2 = atyfb_atari_probe(); #endif - return (err1 && err2) ? -ENODEV : 0; + if (err1 && err2) + return -ENODEV; + + if (dmi_check_system(atyfb_reboot_ids)) + register_reboot_notifier(&atyfb_reboot_notifier); + + return 0; } static void __exit atyfb_exit(void) { + if (dmi_check_system(atyfb_reboot_ids)) + unregister_reboot_notifier(&atyfb_reboot_notifier); + #ifdef CONFIG_PCI pci_unregister_driver(&atyfb_driver); #endif -- cgit v1.2.3 From ee905d0c58a440a5bd10c845e8305f6f7f706be2 Mon Sep 17 00:00:00 2001 From: Ville Syrjala Date: Tue, 30 Jun 2009 11:41:42 -0700 Subject: atyfb: fix alignment for block writes Block writes require 64 byte alignment. Since block writes could be used with SGRAM or WRAM also refine the memory type detection to check for either type before deciding to use the 64 byte alignment. Signed-off-by: Ville Syrjala Tested-by: Mikulas Patocka Cc: Krzysztof Helt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/aty/atyfb.h | 1 + drivers/video/aty/atyfb_base.c | 52 ++++++++++++++++++++++++++++++---------- drivers/video/aty/mach64_accel.c | 7 ++++-- 3 files changed, 46 insertions(+), 14 deletions(-) diff --git a/drivers/video/aty/atyfb.h b/drivers/video/aty/atyfb.h index 0369653b5d8..1f39a62f899 100644 --- a/drivers/video/aty/atyfb.h +++ b/drivers/video/aty/atyfb.h @@ -219,6 +219,7 @@ struct atyfb_par { #define M64F_XL_DLL 0x00080000 #define M64F_MFB_FORCE_4 0x00100000 #define M64F_HW_TRIPLE 0x00200000 +#define M64F_XL_MEM 0x00400000 /* * Register access */ diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c index 06782906daf..63d3739d43a 100644 --- a/drivers/video/aty/atyfb_base.c +++ b/drivers/video/aty/atyfb_base.c @@ -363,8 +363,8 @@ static unsigned long phys_guiregbase[FB_MAX] __devinitdata = { 0, }; #define ATI_CHIP_264GTPRO (ATI_MODERN_SET | M64F_SDRAM_MAGIC_PLL | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D) #define ATI_CHIP_264LTPRO (ATI_MODERN_SET | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D) -#define ATI_CHIP_264XL (ATI_MODERN_SET | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D | M64F_XL_DLL | M64F_MFB_FORCE_4) -#define ATI_CHIP_MOBILITY (ATI_MODERN_SET | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D | M64F_XL_DLL | M64F_MFB_FORCE_4 | M64F_MOBIL_BUS) +#define ATI_CHIP_264XL (ATI_MODERN_SET | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D | M64F_XL_DLL | M64F_MFB_FORCE_4 | M64F_XL_MEM) +#define ATI_CHIP_MOBILITY (ATI_MODERN_SET | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D | M64F_XL_DLL | M64F_MFB_FORCE_4 | M64F_XL_MEM | M64F_MOBIL_BUS) static struct { u16 pci_id; @@ -541,6 +541,7 @@ static char ram_edo[] __devinitdata = "EDO"; static char ram_sdram[] __devinitdata = "SDRAM (1:1)"; static char ram_sgram[] __devinitdata = "SGRAM (1:1)"; static char ram_sdram32[] __devinitdata = "SDRAM (2:1) (32-bit)"; +static char ram_wram[] __devinitdata = "WRAM"; static char ram_off[] __devinitdata = "OFF"; #endif /* CONFIG_FB_ATY_CT */ @@ -554,6 +555,10 @@ static char *aty_gx_ram[8] __devinitdata = { #ifdef CONFIG_FB_ATY_CT static char *aty_ct_ram[8] __devinitdata = { + ram_off, ram_dram, ram_edo, ram_edo, + ram_sdram, ram_sgram, ram_wram, ram_resv +}; +static char *aty_xl_ram[8] __devinitdata = { ram_off, ram_dram, ram_edo, ram_edo, ram_sdram, ram_sgram, ram_sdram32, ram_resv }; @@ -762,6 +767,17 @@ static void aty_set_crtc(const struct atyfb_par *par, const struct crtc *crtc) #endif /* CONFIG_FB_ATY_GENERIC_LCD */ } +static u32 calc_line_length(struct atyfb_par *par, u32 vxres, u32 bpp) +{ + u32 line_length = vxres * bpp / 8; + + if (par->ram_type == SGRAM || + (!M64_HAS(XL_MEM) && par->ram_type == WRAM)) + line_length = (line_length + 63) & ~63; + + return line_length; +} + static int aty_var_to_crtc(const struct fb_info *info, const struct fb_var_screeninfo *var, struct crtc *crtc) { @@ -771,13 +787,14 @@ static int aty_var_to_crtc(const struct fb_info *info, u32 h_total, h_disp, h_sync_strt, h_sync_end, h_sync_dly, h_sync_wid, h_sync_pol; u32 v_total, v_disp, v_sync_strt, v_sync_end, v_sync_wid, v_sync_pol, c_sync; u32 pix_width, dp_pix_width, dp_chain_mask; + u32 line_length; /* input */ - xres = var->xres; + xres = (var->xres + 7) & ~7; yres = var->yres; - vxres = var->xres_virtual; + vxres = (var->xres_virtual + 7) & ~7; vyres = var->yres_virtual; - xoffset = var->xoffset; + xoffset = (var->xoffset + 7) & ~7; yoffset = var->yoffset; bpp = var->bits_per_pixel; if (bpp == 16) @@ -829,7 +846,9 @@ static int aty_var_to_crtc(const struct fb_info *info, } else FAIL("invalid bpp"); - if (vxres * vyres * bpp / 8 > info->fix.smem_len) + line_length = calc_line_length(par, vxres, bpp); + + if (vyres * line_length > info->fix.smem_len) FAIL("not enough video RAM"); h_sync_pol = sync & FB_SYNC_HOR_HIGH_ACT ? 0 : 1; @@ -971,7 +990,9 @@ static int aty_var_to_crtc(const struct fb_info *info, crtc->xoffset = xoffset; crtc->yoffset = yoffset; crtc->bpp = bpp; - crtc->off_pitch = ((yoffset*vxres+xoffset)*bpp/64) | (vxres<<19); + crtc->off_pitch = + ((yoffset * line_length + xoffset * bpp / 8) / 8) | + ((line_length / bpp) << 22); crtc->vline_crnt_vline = 0; crtc->h_tot_disp = h_total | (h_disp<<16); @@ -1396,7 +1417,9 @@ static int atyfb_set_par(struct fb_info *info) } aty_st_8(DAC_MASK, 0xff, par); - info->fix.line_length = var->xres_virtual * var->bits_per_pixel/8; + info->fix.line_length = calc_line_length(par, var->xres_virtual, + var->bits_per_pixel); + info->fix.visual = var->bits_per_pixel <= 8 ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR; @@ -1507,10 +1530,12 @@ static void set_off_pitch(struct atyfb_par *par, const struct fb_info *info) { u32 xoffset = info->var.xoffset; u32 yoffset = info->var.yoffset; - u32 vxres = par->crtc.vxres; + u32 line_length = info->fix.line_length; u32 bpp = info->var.bits_per_pixel; - par->crtc.off_pitch = ((yoffset * vxres + xoffset) * bpp / 64) | (vxres << 19); + par->crtc.off_pitch = + ((yoffset * line_length + xoffset * bpp / 8) / 8) | + ((line_length / bpp) << 22); } @@ -2203,7 +2228,7 @@ static void __devinit aty_calc_mem_refresh(struct atyfb_par *par, int xclk) const int *refresh_tbl; int i, size; - if (IS_XL(par->pci_id) || IS_MOBILITY(par->pci_id)) { + if (M64_HAS(XL_MEM)) { refresh_tbl = ragexl_tbl; size = ARRAY_SIZE(ragexl_tbl); } else { @@ -2337,7 +2362,10 @@ static int __devinit aty_init(struct fb_info *info) par->pll_ops = &aty_pll_ct; par->bus_type = PCI; par->ram_type = (aty_ld_le32(CNFG_STAT0, par) & 0x07); - ramname = aty_ct_ram[par->ram_type]; + if (M64_HAS(XL_MEM)) + ramname = aty_xl_ram[par->ram_type]; + else + ramname = aty_ct_ram[par->ram_type]; /* for many chips, the mclk is 67 MHz for SDRAM, 63 MHz otherwise */ if (par->pll_limits.mclk == 67 && par->ram_type < SDRAM) par->pll_limits.mclk = 63; diff --git a/drivers/video/aty/mach64_accel.c b/drivers/video/aty/mach64_accel.c index 0cc9724e61a..51fcc0a2c94 100644 --- a/drivers/video/aty/mach64_accel.c +++ b/drivers/video/aty/mach64_accel.c @@ -63,14 +63,17 @@ static void reset_GTC_3D_engine(const struct atyfb_par *par) void aty_init_engine(struct atyfb_par *par, struct fb_info *info) { u32 pitch_value; + u32 vxres; /* determine modal information from global mode structure */ - pitch_value = info->var.xres_virtual; + pitch_value = info->fix.line_length / (info->var.bits_per_pixel / 8); + vxres = info->var.xres_virtual; if (info->var.bits_per_pixel == 24) { /* In 24 bpp, the engine is in 8 bpp - this requires that all */ /* horizontal coordinates and widths must be adjusted */ pitch_value *= 3; + vxres *= 3; } /* On GTC (RagePro), we need to reset the 3D engine before */ @@ -133,7 +136,7 @@ void aty_init_engine(struct atyfb_par *par, struct fb_info *info) aty_st_le32(SC_LEFT, 0, par); aty_st_le32(SC_TOP, 0, par); aty_st_le32(SC_BOTTOM, par->crtc.vyres - 1, par); - aty_st_le32(SC_RIGHT, pitch_value - 1, par); + aty_st_le32(SC_RIGHT, vxres - 1, par); /* set background color to minimum value (usually BLACK) */ aty_st_le32(DP_BKGD_CLR, 0, par); -- cgit v1.2.3 From 9980060bad5607ca6db7fb8683de671b522e56a4 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Tue, 30 Jun 2009 11:41:43 -0700 Subject: bfin: delay IRQ registration until driver is ready Make sure we do not actually request the RTC IRQ until the device driver is fully ready to handle and process any interrupt. This way a spurious interrupt won't crash the system (which may happen if the bootloader was poking the RTC right before booting Linux). Signed-off-by: Mike Frysinger Signed-off-by: Alessandro Zummo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/rtc/rtc-bfin.c | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-) diff --git a/drivers/rtc/rtc-bfin.c b/drivers/rtc/rtc-bfin.c index aafd3e6ebb0..a118eb0f1e6 100644 --- a/drivers/rtc/rtc-bfin.c +++ b/drivers/rtc/rtc-bfin.c @@ -1,8 +1,8 @@ /* * Blackfin On-Chip Real Time Clock Driver - * Supports BF52[257]/BF53[123]/BF53[467]/BF54[24789] + * Supports BF51x/BF52x/BF53[123]/BF53[467]/BF54x * - * Copyright 2004-2008 Analog Devices Inc. + * Copyright 2004-2009 Analog Devices Inc. * * Enter bugs at http://blackfin.uclinux.org/ * @@ -363,7 +363,7 @@ static int __devinit bfin_rtc_probe(struct platform_device *pdev) struct bfin_rtc *rtc; struct device *dev = &pdev->dev; int ret = 0; - unsigned long timeout; + unsigned long timeout = jiffies + HZ; dev_dbg_stamp(dev); @@ -374,32 +374,32 @@ static int __devinit bfin_rtc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, rtc); device_init_wakeup(dev, 1); + /* Register our RTC with the RTC framework */ + rtc->rtc_dev = rtc_device_register(pdev->name, dev, &bfin_rtc_ops, + THIS_MODULE); + if (unlikely(IS_ERR(rtc->rtc_dev))) { + ret = PTR_ERR(rtc->rtc_dev); + goto err; + } + /* Grab the IRQ and init the hardware */ ret = request_irq(IRQ_RTC, bfin_rtc_interrupt, IRQF_SHARED, pdev->name, dev); if (unlikely(ret)) - goto err; + goto err_reg; /* sometimes the bootloader touched things, but the write complete was not * enabled, so let's just do a quick timeout here since the IRQ will not fire ... */ - timeout = jiffies + HZ; while (bfin_read_RTC_ISTAT() & RTC_ISTAT_WRITE_PENDING) if (time_after(jiffies, timeout)) break; bfin_rtc_reset(dev, RTC_ISTAT_WRITE_COMPLETE); bfin_write_RTC_SWCNT(0); - /* Register our RTC with the RTC framework */ - rtc->rtc_dev = rtc_device_register(pdev->name, dev, &bfin_rtc_ops, THIS_MODULE); - if (unlikely(IS_ERR(rtc->rtc_dev))) { - ret = PTR_ERR(rtc->rtc_dev); - goto err_irq; - } - return 0; - err_irq: - free_irq(IRQ_RTC, dev); - err: +err_reg: + rtc_device_unregister(rtc->rtc_dev); +err: kfree(rtc); return ret; } -- cgit v1.2.3 From 8516a500029890a72622d245f8ed32c4e30969b7 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Tue, 30 Jun 2009 11:41:44 -0700 Subject: floppy: fix lock imbalance A crappy macro prevents us unlocking on a fail path. Expand the macro and unlock appropriatelly. Signed-off-by: Jiri Slaby Cc: Jens Axboe Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/block/floppy.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 862b40c9018..91b75301378 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -3327,7 +3327,10 @@ static inline int set_geometry(unsigned int cmd, struct floppy_struct *g, if (!capable(CAP_SYS_ADMIN)) return -EPERM; mutex_lock(&open_lock); - LOCK_FDC(drive, 1); + if (lock_fdc(drive, 1)) { + mutex_unlock(&open_lock); + return -EINTR; + } floppy_type[type] = *g; floppy_type[type].name = "user format"; for (cnt = type << 2; cnt < (type << 2) + 4; cnt++) -- cgit v1.2.3 From 752fa51e4c5182c3c257f1cede90577a7e213c58 Mon Sep 17 00:00:00 2001 From: Wolfgang Illmeyer Date: Tue, 30 Jun 2009 11:41:44 -0700 Subject: hostfs: set maximum filesize in superblock for proper LFS support Maximum file size for hostfs mounts defaults to 2GB, so bigger files cannot be read/written through hostfs. This patch initializes the maximum file size to MAX_LFS_SIZE. Addresses http://bugzilla.kernel.org/show_bug.cgi?id=13531 Signed-off-by: Wolfgang Illmeyer Cc: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/hostfs/hostfs_kern.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c index fe02ad4740e..032604e5ef2 100644 --- a/fs/hostfs/hostfs_kern.c +++ b/fs/hostfs/hostfs_kern.c @@ -972,6 +972,7 @@ static int hostfs_fill_sb_common(struct super_block *sb, void *d, int silent) sb->s_blocksize_bits = 10; sb->s_magic = HOSTFS_SUPER_MAGIC; sb->s_op = &hostfs_sbops; + sb->s_maxbytes = MAX_LFS_FILESIZE; /* NULL is printed as by sprintf: avoid that. */ if (req_root == NULL) -- cgit v1.2.3 From aee3ff1b413cff44e7d91dd1901cacd8988ce9cf Mon Sep 17 00:00:00 2001 From: David Howells Date: Tue, 30 Jun 2009 22:24:54 +0100 Subject: FRV: Wire up new syscalls Wire up new syscalls rt_tgsigqueueinfo and perf_counter_open. Signed-off-by: David Howells Signed-off-by: Linus Torvalds --- arch/frv/include/asm/unistd.h | 4 +++- arch/frv/kernel/entry.S | 2 ++ 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/frv/include/asm/unistd.h b/arch/frv/include/asm/unistd.h index 96d78d5d2c4..4a8fb427ce0 100644 --- a/arch/frv/include/asm/unistd.h +++ b/arch/frv/include/asm/unistd.h @@ -341,10 +341,12 @@ #define __NR_inotify_init1 332 #define __NR_preadv 333 #define __NR_pwritev 334 +#define __NR_rt_tgsigqueueinfo 335 +#define __NR_perf_counter_open 336 #ifdef __KERNEL__ -#define NR_syscalls 335 +#define NR_syscalls 337 #define __ARCH_WANT_IPC_PARSE_VERSION /* #define __ARCH_WANT_OLD_READDIR */ diff --git a/arch/frv/kernel/entry.S b/arch/frv/kernel/entry.S index 356e0e327a8..fde1e446b44 100644 --- a/arch/frv/kernel/entry.S +++ b/arch/frv/kernel/entry.S @@ -1524,5 +1524,7 @@ sys_call_table: .long sys_inotify_init1 .long sys_preadv .long sys_pwritev + .long sys_rt_tgsigqueueinfo /* 335 */ + .long sys_perf_counter_open syscall_table_size = (. - sys_call_table) -- cgit v1.2.3 From 6086071005674eb982d898c75269c931240154cf Mon Sep 17 00:00:00 2001 From: David Howells Date: Tue, 30 Jun 2009 22:33:15 +0100 Subject: MN10300: Wire up new syscalls Wire up new syscalls rt_tgsigqueueinfo and perf_counter_open. Signed-off-by: David Howells Signed-off-by: Linus Torvalds --- arch/mn10300/include/asm/unistd.h | 4 +++- arch/mn10300/kernel/entry.S | 2 ++ 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/mn10300/include/asm/unistd.h b/arch/mn10300/include/asm/unistd.h index fef5b434dad..fad68616af3 100644 --- a/arch/mn10300/include/asm/unistd.h +++ b/arch/mn10300/include/asm/unistd.h @@ -346,10 +346,12 @@ #define __NR_inotify_init1 333 #define __NR_preadv 334 #define __NR_pwritev 335 +#define __NR_rt_tgsigqueueinfo 336 +#define __NR_perf_counter_open 337 #ifdef __KERNEL__ -#define NR_syscalls 326 +#define NR_syscalls 338 /* * specify the deprecated syscalls we want to support on this arch diff --git a/arch/mn10300/kernel/entry.S b/arch/mn10300/kernel/entry.S index 7408a27199f..e0d2563af4f 100644 --- a/arch/mn10300/kernel/entry.S +++ b/arch/mn10300/kernel/entry.S @@ -722,6 +722,8 @@ ENTRY(sys_call_table) .long sys_inotify_init1 .long sys_preadv .long sys_pwritev /* 335 */ + .long sys_rt_tgsigqueueinfo + .long sys_perf_counter_open nr_syscalls=(.-sys_call_table)/4 -- cgit v1.2.3 From 1ec22eb2b4a2e1a763106bce36b11c02eaa84e61 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 1 Jul 2009 12:27:21 +1000 Subject: md: fix error path when duplicate name is found on md device creation. When an md device is created by name (rather than number) we need to check that the name is not already in use. If this check finds a duplicate, we return an error without dropping the lock or freeing the newly create mddev. This patch fixes that. Cc: stable@kernel.org Found-by: Jiri Slaby Signed-off-by: NeilBrown --- drivers/md/md.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/md/md.c b/drivers/md/md.c index 2166af8a765..58bee2366ea 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -3862,6 +3862,8 @@ static int md_alloc(dev_t dev, char *name) if (mddev2->gendisk && strcmp(mddev2->gendisk->disk_name, name) == 0) { spin_unlock(&all_mddevs_lock); + mutex_unlock(&disks_mutex); + mddev_put(mddev); return -EEXIST; } spin_unlock(&all_mddevs_lock); -- cgit v1.2.3 From 0909dc448c98ed5021c87ffdfc09fb473aa464ab Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 1 Jul 2009 12:27:21 +1000 Subject: md: tidy up error paths in md_alloc As the recent bug in md_alloc showed, having a single exit path for unlocking and putting is a good idea. So restructure md_alloc to have a single mutex_unlock and mddev_put, and use gotos where necessary. Found-by: Jiri Slaby Signed-off-by: NeilBrown --- drivers/md/md.c | 38 ++++++++++++++++++-------------------- 1 file changed, 18 insertions(+), 20 deletions(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index 58bee2366ea..65fe35b5e34 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -3846,11 +3846,9 @@ static int md_alloc(dev_t dev, char *name) flush_scheduled_work(); mutex_lock(&disks_mutex); - if (mddev->gendisk) { - mutex_unlock(&disks_mutex); - mddev_put(mddev); - return -EEXIST; - } + error = -EEXIST; + if (mddev->gendisk) + goto abort; if (name) { /* Need to ensure that 'name' is not a duplicate. @@ -3862,19 +3860,15 @@ static int md_alloc(dev_t dev, char *name) if (mddev2->gendisk && strcmp(mddev2->gendisk->disk_name, name) == 0) { spin_unlock(&all_mddevs_lock); - mutex_unlock(&disks_mutex); - mddev_put(mddev); - return -EEXIST; + goto abort; } spin_unlock(&all_mddevs_lock); } + error = -ENOMEM; mddev->queue = blk_alloc_queue(GFP_KERNEL); - if (!mddev->queue) { - mutex_unlock(&disks_mutex); - mddev_put(mddev); - return -ENOMEM; - } + if (!mddev->queue) + goto abort; mddev->queue->queuedata = mddev; /* Can be unlocked because the queue is new: no concurrency */ @@ -3884,11 +3878,9 @@ static int md_alloc(dev_t dev, char *name) disk = alloc_disk(1 << shift); if (!disk) { - mutex_unlock(&disks_mutex); blk_cleanup_queue(mddev->queue); mddev->queue = NULL; - mddev_put(mddev); - return -ENOMEM; + goto abort; } disk->major = MAJOR(mddev->unit); disk->first_minor = unit << shift; @@ -3910,16 +3902,22 @@ static int md_alloc(dev_t dev, char *name) mddev->gendisk = disk; error = kobject_init_and_add(&mddev->kobj, &md_ktype, &disk_to_dev(disk)->kobj, "%s", "md"); - mutex_unlock(&disks_mutex); - if (error) + if (error) { + /* This isn't possible, but as kobject_init_and_add is marked + * __must_check, we must do something with the result + */ printk(KERN_WARNING "md: cannot register %s/md - name in use\n", disk->disk_name); - else { + error = 0; + } + abort: + mutex_unlock(&disks_mutex); + if (!error) { kobject_uevent(&mddev->kobj, KOBJ_ADD); mddev->sysfs_state = sysfs_get_dirent(mddev->kobj.sd, "array_state"); } mddev_put(mddev); - return 0; + return error; } static struct kobject *md_probe(dev_t dev, int *part, void *data) -- cgit v1.2.3 From a5c308d4d1659b1f4833b863394e3e24cdbdfc6e Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 1 Jul 2009 13:15:35 +1000 Subject: md/raid5: suspend shouldn't affect read requests. md allows write to regions on an array to be suspended temporarily. This allows user-space to participate is aspects of reshape. In particular, data can be copied with not risk of a race. We should not be blocking read requests though, so don't. Cc: stable@kernel.org Signed-off-by: NeilBrown --- drivers/md/raid5.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 92ef9b6abfc..1f444ae07f8 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3702,7 +3702,8 @@ static int make_request(struct request_queue *q, struct bio * bi) /* FIXME what if we get a false positive because these * are being updated. */ - if (logical_sector >= mddev->suspend_lo && + if (bio_data_dir(bi) == WRITE && + logical_sector >= mddev->suspend_lo && logical_sector < mddev->suspend_hi) { release_stripe(sh); schedule(); -- cgit v1.2.3 From e62e58a5ffdc98ac28d8dbd070c857620d541f99 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 1 Jul 2009 13:15:35 +1000 Subject: md: use interruptible wait when duration is controlled by userspace. User space can set various limits on an md array so that resync waits when it gets to a certain point, or so that I/O is blocked for a short while. When md is waiting against one of these limit, it should use an interruptible wait so as not to add to the load average, and so are not to trigger a warning if the wait goes on for too long. Signed-off-by: NeilBrown --- drivers/md/md.c | 14 ++++++++++---- drivers/md/raid5.c | 15 +++++++++++---- 2 files changed, 21 insertions(+), 8 deletions(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index 65fe35b5e34..0f4a70c43ff 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -6336,10 +6336,16 @@ void md_do_sync(mddev_t *mddev) sysfs_notify(&mddev->kobj, NULL, "sync_completed"); } - if (j >= mddev->resync_max) - wait_event(mddev->recovery_wait, - mddev->resync_max > j - || kthread_should_stop()); + while (j >= mddev->resync_max && !kthread_should_stop()) { + /* As this condition is controlled by user-space, + * we can block indefinitely, so use '_interruptible' + * to avoid triggering warnings. + */ + flush_signals(current); /* just in case */ + wait_event_interruptible(mddev->recovery_wait, + mddev->resync_max > j + || kthread_should_stop()); + } if (kthread_should_stop()) goto interrupted; diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 1f444ae07f8..37835538b58 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3699,14 +3699,21 @@ static int make_request(struct request_queue *q, struct bio * bi) goto retry; } } - /* FIXME what if we get a false positive because these - * are being updated. - */ + if (bio_data_dir(bi) == WRITE && logical_sector >= mddev->suspend_lo && logical_sector < mddev->suspend_hi) { release_stripe(sh); - schedule(); + /* As the suspend_* range is controlled by + * userspace, we want an interruptible + * wait. + */ + flush_signals(current); + prepare_to_wait(&conf->wait_for_overlap, + &w, TASK_INTERRUPTIBLE); + if (logical_sector >= mddev->suspend_lo && + logical_sector < mddev->suspend_hi) + schedule(); goto retry; } -- cgit v1.2.3 From 84f7597c116f811cfcb762e645fa258b7e585155 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Wed, 1 Jul 2009 04:55:35 +0000 Subject: sh: fix se7724 ceu names Use "ceu0" and "ceu1" as CEU names instead of "ceu". This fixes "memchunk" kernel command line selection on the solution engine 7724 board. With this patch applied use "memchunk.ceu0=1m" or "memchunk.ceu1=1m" on kernel command line to override physically memory size to one meg for CEU0 or CEU1. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt --- arch/sh/boards/mach-se/7724/setup.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/sh/boards/mach-se/7724/setup.c b/arch/sh/boards/mach-se/7724/setup.c index 21d18005fb4..c050a8d76df 100644 --- a/arch/sh/boards/mach-se/7724/setup.c +++ b/arch/sh/boards/mach-se/7724/setup.c @@ -454,7 +454,7 @@ static int __init devices_setup(void) gpio_request(GPIO_FN_VIO0_CLK, NULL); gpio_request(GPIO_FN_VIO0_FLD, NULL); gpio_request(GPIO_FN_VIO0_HD, NULL); - platform_resource_setup_memory(&ceu0_device, "ceu", 4 << 20); + platform_resource_setup_memory(&ceu0_device, "ceu0", 4 << 20); /* enable CEU1 */ gpio_request(GPIO_FN_VIO1_D7, NULL); @@ -469,7 +469,7 @@ static int __init devices_setup(void) gpio_request(GPIO_FN_VIO1_HD, NULL); gpio_request(GPIO_FN_VIO1_VD, NULL); gpio_request(GPIO_FN_VIO1_CLK, NULL); - platform_resource_setup_memory(&ceu1_device, "ceu", 4 << 20); + platform_resource_setup_memory(&ceu1_device, "ceu1", 4 << 20); /* KEYSC */ gpio_request(GPIO_FN_KEYOUT5_IN5, NULL); -- cgit v1.2.3 From 0802d9e55cc6be6bd1b13f9dc9ef5aa6d24bca77 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Wed, 1 Jul 2009 05:16:31 +0000 Subject: sh: re-add LCDC fbdev support to the Migo-R defconfig Re-add LCDC fbdev support to the Migo-R defconfig. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt --- arch/sh/configs/migor_defconfig | 53 +++++++++++++++++++++++++++++++++++++++-- 1 file changed, 51 insertions(+), 2 deletions(-) diff --git a/arch/sh/configs/migor_defconfig b/arch/sh/configs/migor_defconfig index da627d22c00..b18cfd39cac 100644 --- a/arch/sh/configs/migor_defconfig +++ b/arch/sh/configs/migor_defconfig @@ -309,7 +309,7 @@ CONFIG_ZERO_PAGE_OFFSET=0x00001000 CONFIG_BOOT_LINK_OFFSET=0x00800000 CONFIG_ENTRY_OFFSET=0x00001000 CONFIG_CMDLINE_BOOL=y -CONFIG_CMDLINE="console=ttySC0,115200 earlyprintk=serial ip=on root=/dev/nfs ip=dhcp" +CONFIG_CMDLINE="console=tty0 console=ttySC0,115200 earlyprintk=serial ip=on root=/dev/nfs ip=dhcp" # # Bus options @@ -858,7 +858,35 @@ CONFIG_VIDEO_SH_MOBILE_CEU=y # # CONFIG_VGASTATE is not set # CONFIG_VIDEO_OUTPUT_CONTROL is not set -# CONFIG_FB is not set +CONFIG_FB=y +# CONFIG_FIRMWARE_EDID is not set +# CONFIG_FB_DDC is not set +# CONFIG_FB_BOOT_VESA_SUPPORT is not set +# CONFIG_FB_CFB_FILLRECT is not set +# CONFIG_FB_CFB_COPYAREA is not set +# CONFIG_FB_CFB_IMAGEBLIT is not set +# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set +CONFIG_FB_SYS_FILLRECT=y +CONFIG_FB_SYS_COPYAREA=y +CONFIG_FB_SYS_IMAGEBLIT=y +# CONFIG_FB_FOREIGN_ENDIAN is not set +CONFIG_FB_SYS_FOPS=y +CONFIG_FB_DEFERRED_IO=y +# CONFIG_FB_SVGALIB is not set +# CONFIG_FB_MACMODES is not set +# CONFIG_FB_BACKLIGHT is not set +# CONFIG_FB_MODE_HELPERS is not set +# CONFIG_FB_TILEBLITTING is not set + +# +# Frame buffer hardware drivers +# +# CONFIG_FB_S1D13XXX is not set +CONFIG_FB_SH_MOBILE_LCDC=y +# CONFIG_FB_VIRTUAL is not set +# CONFIG_FB_METRONOME is not set +# CONFIG_FB_MB862XX is not set +# CONFIG_FB_BROADSHEET is not set # CONFIG_BACKLIGHT_LCD_SUPPORT is not set # @@ -870,6 +898,27 @@ CONFIG_VIDEO_SH_MOBILE_CEU=y # Console display driver support # CONFIG_DUMMY_CONSOLE=y +CONFIG_FRAMEBUFFER_CONSOLE=y +CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y +# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set +CONFIG_FONTS=y +# CONFIG_FONT_8x8 is not set +# CONFIG_FONT_8x16 is not set +# CONFIG_FONT_6x11 is not set +# CONFIG_FONT_7x14 is not set +# CONFIG_FONT_PEARL_8x8 is not set +# CONFIG_FONT_ACORN_8x8 is not set +CONFIG_FONT_MINI_4x6=y +# CONFIG_FONT_SUN8x16 is not set +# CONFIG_FONT_SUN12x22 is not set +# CONFIG_FONT_10x18 is not set +CONFIG_LOGO=y +# CONFIG_LOGO_LINUX_MONO is not set +# CONFIG_LOGO_LINUX_VGA16 is not set +# CONFIG_LOGO_LINUX_CLUT224 is not set +# CONFIG_LOGO_SUPERH_MONO is not set +CONFIG_LOGO_SUPERH_VGA16=y +# CONFIG_LOGO_SUPERH_CLUT224 is not set # CONFIG_SOUND is not set CONFIG_HID_SUPPORT=y CONFIG_HID=y -- cgit v1.2.3 From 1e1689536f346a431b748dc8ad9ac0828d2c065d Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 1 Jul 2009 08:34:32 +0200 Subject: ALSA: hda - Add missing static to patch_ca0110() Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_ca0110.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/pci/hda/patch_ca0110.c b/sound/pci/hda/patch_ca0110.c index 392d108c355..019ca7cb56d 100644 --- a/sound/pci/hda/patch_ca0110.c +++ b/sound/pci/hda/patch_ca0110.c @@ -510,7 +510,7 @@ static int ca0110_parse_auto_config(struct hda_codec *codec) } -int patch_ca0110(struct hda_codec *codec) +static int patch_ca0110(struct hda_codec *codec) { struct ca0110_spec *spec; int err; -- cgit v1.2.3 From 9198aa77b69647d1d91207f8075763abe7dc0bf4 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Wed, 1 Jul 2009 05:35:13 +0200 Subject: perf_counter tools: Fix storage size allocation of callchain list Fix a confusion while giving the size of a callchain list during its allocation. We are using the wrong structure size. Signed-off-by: Frederic Weisbecker Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Anton Blanchard Cc: Arnaldo Carvalho de Melo LKML-Reference: <1246419315-9968-2-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar --- tools/perf/util/callchain.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c index ad3c2857896..bbf7813fefe 100644 --- a/tools/perf/util/callchain.c +++ b/tools/perf/util/callchain.c @@ -74,7 +74,7 @@ fill_node(struct callchain_node *node, struct ip_callchain *chain, int start) for (i = start; i < chain->nr; i++) { struct callchain_list *call; - call = malloc(sizeof(*chain)); + call = malloc(sizeof(*call)); if (!call) { perror("not enough memory for the code path tree"); return; -- cgit v1.2.3 From 4424961ad6621a02c6b4c9093e801002c1bb9f65 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Wed, 1 Jul 2009 05:35:14 +0200 Subject: perf_counter tools: Resolve symbols in callchains This patch resolves the names, when possible, of each ip present in the callchains while using the -c option with perf report. Example: 5.40% [k] __d_lookup 5.37% perf_callchain perf_counter_overflow intel_pmu_handle_irq perf_counter_nmi_handler notifier_call_chain atomic_notifier_call_chain notify_die do_nmi nmi do_lookup __link_path_walk path_walk do_path_lookup user_path_at sys_faccessat sys_access system_call_fastpath 0x7fb609846f77 0.01% perf_callchain perf_counter_overflow intel_pmu_handle_irq perf_counter_nmi_handler notifier_call_chain atomic_notifier_call_chain notify_die do_nmi nmi do_lookup __link_path_walk path_walk do_path_lookup user_path_at sys_faccessat Signed-off-by: Frederic Weisbecker Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Anton Blanchard Cc: Arnaldo Carvalho de Melo LKML-Reference: <1246419315-9968-3-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar --- tools/perf/builtin-report.c | 102 +++++++++++++++++++++++++++++--------------- tools/perf/util/callchain.c | 33 ++++++++------ tools/perf/util/callchain.h | 5 ++- 3 files changed, 90 insertions(+), 50 deletions(-) diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 3f5d8ea05ff..197793051fa 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -794,8 +794,15 @@ callchain__fprintf(FILE *fp, struct callchain_node *self, u64 total_samples) ret += callchain__fprintf(fp, self->parent, total_samples); - list_for_each_entry(chain, &self->val, list) - ret += fprintf(fp, " %p\n", (void *)chain->ip); + list_for_each_entry(chain, &self->val, list) { + if (chain->ip >= PERF_CONTEXT_MAX) + continue; + if (chain->sym) + ret += fprintf(fp, " %s\n", chain->sym->name); + else + ret += fprintf(fp, " %p\n", + (void *)chain->ip); + } return ret; } @@ -930,6 +937,55 @@ static int call__match(struct symbol *sym) return 0; } +static struct symbol ** +resolve_callchain(struct thread *thread, struct map *map, + struct ip_callchain *chain, struct hist_entry *entry) +{ + int i; + struct symbol **syms; + u64 context = PERF_CONTEXT_MAX; + + if (callchain) { + syms = calloc(chain->nr, sizeof(*syms)); + if (!syms) { + fprintf(stderr, "Can't allocate memory for symbols\n"); + exit(-1); + } + } + + for (i = 0; i < chain->nr; i++) { + u64 ip = chain->ips[i]; + struct dso *dso = NULL; + struct symbol *sym; + + if (ip >= PERF_CONTEXT_MAX) { + context = ip; + continue; + } + + switch (context) { + case PERF_CONTEXT_KERNEL: + dso = kernel_dso; + break; + default: + break; + } + + sym = resolve_symbol(thread, NULL, &dso, &ip); + + if (sym) { + if (sort__has_parent && call__match(sym) && + !entry->parent) + entry->parent = sym; + if (!callchain) + break; + syms[i] = sym; + } + } + + return syms; +} + /* * collect histogram counts */ @@ -942,6 +998,7 @@ hist_entry__add(struct thread *thread, struct map *map, struct dso *dso, struct rb_node **p = &hist.rb_node; struct rb_node *parent = NULL; struct hist_entry *he; + struct symbol **syms = NULL; struct hist_entry entry = { .thread = thread, .map = map, @@ -955,39 +1012,11 @@ hist_entry__add(struct thread *thread, struct map *map, struct dso *dso, }; int cmp; - if (sort__has_parent && chain) { - u64 context = PERF_CONTEXT_MAX; - int i; - - for (i = 0; i < chain->nr; i++) { - u64 ip = chain->ips[i]; - struct dso *dso = NULL; - struct symbol *sym; - - if (ip >= PERF_CONTEXT_MAX) { - context = ip; - continue; - } - - switch (context) { case PERF_CONTEXT_HV: dso = hypervisor_dso; break; - case PERF_CONTEXT_KERNEL: - dso = kernel_dso; - break; - default: - break; - } - - sym = resolve_symbol(thread, NULL, &dso, &ip); - - if (sym && call__match(sym)) { - entry.parent = sym; - break; - } - } - } + if ((sort__has_parent || callchain) && chain) + syms = resolve_callchain(thread, map, chain, &entry); while (*p != NULL) { parent = *p; @@ -997,8 +1026,10 @@ hist_entry__add(struct thread *thread, struct map *map, struct dso *dso, if (!cmp) { he->count += count; - if (callchain) - append_chain(&he->callchain, chain); + if (callchain) { + append_chain(&he->callchain, chain, syms); + free(syms); + } return 0; } @@ -1014,7 +1045,8 @@ hist_entry__add(struct thread *thread, struct map *map, struct dso *dso, *he = entry; if (callchain) { callchain_init(&he->callchain); - append_chain(&he->callchain, chain); + append_chain(&he->callchain, chain, syms); + free(syms); } rb_link_node(&he->rb_node, parent, p); rb_insert_color(&he->rb_node, &hist); diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c index bbf7813fefe..6568cb198ba 100644 --- a/tools/perf/util/callchain.c +++ b/tools/perf/util/callchain.c @@ -67,7 +67,8 @@ static struct callchain_node *create_child(struct callchain_node *parent) } static void -fill_node(struct callchain_node *node, struct ip_callchain *chain, int start) +fill_node(struct callchain_node *node, struct ip_callchain *chain, int start, + struct symbol **syms) { int i; @@ -80,24 +81,26 @@ fill_node(struct callchain_node *node, struct ip_callchain *chain, int start) return; } call->ip = chain->ips[i]; + call->sym = syms[i]; list_add_tail(&call->list, &node->val); } node->val_nr = i - start; } -static void add_child(struct callchain_node *parent, struct ip_callchain *chain) +static void add_child(struct callchain_node *parent, struct ip_callchain *chain, + struct symbol **syms) { struct callchain_node *new; new = create_child(parent); - fill_node(new, chain, parent->val_nr); + fill_node(new, chain, parent->val_nr, syms); new->hit = 1; } static void split_add_child(struct callchain_node *parent, struct ip_callchain *chain, - struct callchain_list *to_split, int idx) + struct callchain_list *to_split, int idx, struct symbol **syms) { struct callchain_node *new; @@ -109,21 +112,22 @@ split_add_child(struct callchain_node *parent, struct ip_callchain *chain, parent->val_nr = idx; /* create the new one */ - add_child(parent, chain); + add_child(parent, chain, syms); } static int __append_chain(struct callchain_node *root, struct ip_callchain *chain, - int start); + int start, struct symbol **syms); static int -__append_chain_children(struct callchain_node *root, struct ip_callchain *chain) +__append_chain_children(struct callchain_node *root, struct ip_callchain *chain, + struct symbol **syms) { struct callchain_node *rnode; /* lookup in childrens */ list_for_each_entry(rnode, &root->children, brothers) { - int ret = __append_chain(rnode, chain, root->val_nr); + int ret = __append_chain(rnode, chain, root->val_nr, syms); if (!ret) return 0; } @@ -132,7 +136,7 @@ __append_chain_children(struct callchain_node *root, struct ip_callchain *chain) static int __append_chain(struct callchain_node *root, struct ip_callchain *chain, - int start) + int start, struct symbol **syms) { struct callchain_list *cnode; int i = start; @@ -154,7 +158,7 @@ __append_chain(struct callchain_node *root, struct ip_callchain *chain, /* we match only a part of the node. Split it and add the new chain */ if (i < root->val_nr) { - split_add_child(root, chain, cnode, i); + split_add_child(root, chain, cnode, i, syms); return 0; } @@ -164,11 +168,12 @@ __append_chain(struct callchain_node *root, struct ip_callchain *chain, return 0; } - return __append_chain_children(root, chain); + return __append_chain_children(root, chain, syms); } -void append_chain(struct callchain_node *root, struct ip_callchain *chain) +void append_chain(struct callchain_node *root, struct ip_callchain *chain, + struct symbol **syms) { - if (__append_chain_children(root, chain) == -1) - add_child(root, chain); + if (__append_chain_children(root, chain, syms) == -1) + add_child(root, chain, syms); } diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h index fa1cd2f71fd..c942daa712e 100644 --- a/tools/perf/util/callchain.h +++ b/tools/perf/util/callchain.h @@ -4,6 +4,7 @@ #include "../perf.h" #include "list.h" #include "rbtree.h" +#include "symbol.h" struct callchain_node { @@ -18,6 +19,7 @@ struct callchain_node { struct callchain_list { unsigned long ip; + struct symbol *sym; struct list_head list; }; @@ -28,6 +30,7 @@ static inline void callchain_init(struct callchain_node *node) INIT_LIST_HEAD(&node->val); } -void append_chain(struct callchain_node *root, struct ip_callchain *chain); +void append_chain(struct callchain_node *root, struct ip_callchain *chain, + struct symbol **syms); void sort_chain_to_rbtree(struct rb_root *rb_root, struct callchain_node *node); #endif -- cgit v1.2.3 From deac911cbdcb124fa0cee47c588e0cb0400b23b7 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Wed, 1 Jul 2009 05:35:15 +0200 Subject: perf_counter tools: Various fixes for callchains The symbol resolving has of course revealed some bugs in the callchain tree handling. This patch fixes some of them, including: - inherit the children from the parents while splitting a node - fix list range moving - fix indexes setting in callchains - create a child on the current node if the path doesn't match in the existent children (was only done on the root) - compare using symbols when possible so that we can match a function using any ip inside by referring to its start address. The practical effects are: - remove double callchains - fix upside down or any random order of callchains - fix wrong paths - fix bad hits and percentage accounts Signed-off-by: Frederic Weisbecker Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Anton Blanchard Cc: Arnaldo Carvalho de Melo LKML-Reference: <1246419315-9968-4-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar --- tools/perf/util/callchain.c | 122 ++++++++++++++++++++++++++++++++------------ 1 file changed, 90 insertions(+), 32 deletions(-) diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c index 6568cb198ba..440db12c635 100644 --- a/tools/perf/util/callchain.c +++ b/tools/perf/util/callchain.c @@ -4,6 +4,9 @@ * Handle the callchains from the stream in an ad-hoc radix tree and then * sort them in an rbtree. * + * Using a radix for code path provides a fast retrieval and factorizes + * memory use. Also that lets us use the paths in a hierarchical graph view. + * */ #include @@ -14,7 +17,8 @@ #include "callchain.h" -static void rb_insert_callchain(struct rb_root *root, struct callchain_node *chain) +static void +rb_insert_callchain(struct rb_root *root, struct callchain_node *chain) { struct rb_node **p = &root->rb_node; struct rb_node *parent = NULL; @@ -49,7 +53,12 @@ void sort_chain_to_rbtree(struct rb_root *rb_root, struct callchain_node *node) rb_insert_callchain(rb_root, node); } -static struct callchain_node *create_child(struct callchain_node *parent) +/* + * Create a child for a parent. If inherit_children, then the new child + * will become the new parent of it's parent children + */ +static struct callchain_node * +create_child(struct callchain_node *parent, bool inherit_children) { struct callchain_node *new; @@ -61,14 +70,27 @@ static struct callchain_node *create_child(struct callchain_node *parent) new->parent = parent; INIT_LIST_HEAD(&new->children); INIT_LIST_HEAD(&new->val); + + if (inherit_children) { + struct callchain_node *next; + + list_splice(&parent->children, &new->children); + INIT_LIST_HEAD(&parent->children); + + list_for_each_entry(next, &new->children, brothers) + next->parent = new; + } list_add_tail(&new->brothers, &parent->children); return new; } +/* + * Fill the node with callchain values + */ static void -fill_node(struct callchain_node *node, struct ip_callchain *chain, int start, - struct symbol **syms) +fill_node(struct callchain_node *node, struct ip_callchain *chain, + int start, struct symbol **syms) { int i; @@ -84,54 +106,80 @@ fill_node(struct callchain_node *node, struct ip_callchain *chain, int start, call->sym = syms[i]; list_add_tail(&call->list, &node->val); } - node->val_nr = i - start; + node->val_nr = chain->nr - start; + if (!node->val_nr) + printf("Warning: empty node in callchain tree\n"); } -static void add_child(struct callchain_node *parent, struct ip_callchain *chain, - struct symbol **syms) +static void +add_child(struct callchain_node *parent, struct ip_callchain *chain, + int start, struct symbol **syms) { struct callchain_node *new; - new = create_child(parent); - fill_node(new, chain, parent->val_nr, syms); + new = create_child(parent, false); + fill_node(new, chain, start, syms); new->hit = 1; } +/* + * Split the parent in two parts (a new child is created) and + * give a part of its callchain to the created child. + * Then create another child to host the given callchain of new branch + */ static void split_add_child(struct callchain_node *parent, struct ip_callchain *chain, - struct callchain_list *to_split, int idx, struct symbol **syms) + struct callchain_list *to_split, int idx_parents, int idx_local, + struct symbol **syms) { struct callchain_node *new; + struct list_head *old_tail; + int idx_total = idx_parents + idx_local; /* split */ - new = create_child(parent); - list_move_tail(&to_split->list, &new->val); - new->hit = parent->hit; - parent->hit = 0; - parent->val_nr = idx; + new = create_child(parent, true); + + /* split the callchain and move a part to the new child */ + old_tail = parent->val.prev; + list_del_range(&to_split->list, old_tail); + new->val.next = &to_split->list; + new->val.prev = old_tail; + to_split->list.prev = &new->val; + old_tail->next = &new->val; - /* create the new one */ - add_child(parent, chain, syms); + /* split the hits */ + new->hit = parent->hit; + new->val_nr = parent->val_nr - idx_local; + parent->val_nr = idx_local; + + /* create a new child for the new branch if any */ + if (idx_total < chain->nr) { + parent->hit = 0; + add_child(parent, chain, idx_total, syms); + } else { + parent->hit = 1; + } } static int __append_chain(struct callchain_node *root, struct ip_callchain *chain, int start, struct symbol **syms); -static int +static void __append_chain_children(struct callchain_node *root, struct ip_callchain *chain, - struct symbol **syms) + struct symbol **syms, int start) { struct callchain_node *rnode; /* lookup in childrens */ list_for_each_entry(rnode, &root->children, brothers) { - int ret = __append_chain(rnode, chain, root->val_nr, syms); + int ret = __append_chain(rnode, chain, start, syms); if (!ret) - return 0; + return; } - return -1; + /* nothing in children, add to the current node */ + add_child(root, chain, start, syms); } static int @@ -142,14 +190,22 @@ __append_chain(struct callchain_node *root, struct ip_callchain *chain, int i = start; bool found = false; - /* lookup in the current node */ + /* + * Lookup in the current node + * If we have a symbol, then compare the start to match + * anywhere inside a function. + */ list_for_each_entry(cnode, &root->val, list) { - if (cnode->ip != chain->ips[i++]) + if (i == chain->nr) + break; + if (cnode->sym && syms[i]) { + if (cnode->sym->start != syms[i]->start) + break; + } else if (cnode->ip != chain->ips[i]) break; if (!found) found = true; - if (i == chain->nr) - break; + i++; } /* matches not, relay on the parent */ @@ -157,23 +213,25 @@ __append_chain(struct callchain_node *root, struct ip_callchain *chain, return -1; /* we match only a part of the node. Split it and add the new chain */ - if (i < root->val_nr) { - split_add_child(root, chain, cnode, i, syms); + if (i - start < root->val_nr) { + split_add_child(root, chain, cnode, start, i - start, syms); return 0; } /* we match 100% of the path, increment the hit */ - if (i == root->val_nr) { + if (i - start == root->val_nr && i == chain->nr) { root->hit++; return 0; } - return __append_chain_children(root, chain, syms); + /* We match the node and still have a part remaining */ + __append_chain_children(root, chain, syms, i); + + return 0; } void append_chain(struct callchain_node *root, struct ip_callchain *chain, struct symbol **syms) { - if (__append_chain_children(root, chain, syms) == -1) - add_child(root, chain, syms); + __append_chain_children(root, chain, syms, 0); } -- cgit v1.2.3 From 0a456fc58fb8ef3c53d18297ab5cd5d2a70d146b Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Wed, 1 Jul 2009 13:07:01 +1000 Subject: powerpc/perf_counter: Enable alternate PR/HV bits for POWER7 POWER7 has the same PR/HV bit layout as POWER6, so set the flag. Signed-off-by: Anton Blanchard Acked-by: Paul Mackerras Cc: a.p.zijlstra@chello.nl Cc: benh@kernel.crashing.org LKML-Reference: <20090701030701.GI3563@kryten> Signed-off-by: Ingo Molnar --- arch/powerpc/kernel/power7-pmu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/kernel/power7-pmu.c b/arch/powerpc/kernel/power7-pmu.c index 5d755ef7ac8..5a9f5cbd40a 100644 --- a/arch/powerpc/kernel/power7-pmu.c +++ b/arch/powerpc/kernel/power7-pmu.c @@ -358,6 +358,7 @@ static struct power_pmu power7_pmu = { .get_constraint = power7_get_constraint, .get_alternatives = power7_get_alternatives, .disable_pmc = power7_disable_pmc, + .flags = PPMU_ALT_SIPR, .n_generic = ARRAY_SIZE(power7_generic_events), .generic_events = power7_generic_events, .cache_events = &power7_cache_events, -- cgit v1.2.3 From 61c45981ddbd718136d49464f00d2f11938aaa6e Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Wed, 1 Jul 2009 13:04:34 +1000 Subject: perf_counter tools: Rework event string parsing/syntax This reworks the parser for event descriptors to make it more consistent in what it accepts. It is now structured as a recursive descent parser for the following grammar: events ::= event ( ("," | space) space* event )* event ::= ( raw_event | numeric_event | symbolic_event | generic_hw_event ) [ event_modifier ] raw_event ::= "r" hex_number numeric_event ::= number ":" number number ::= decimal_number | "0x" hex_number | "0" octal_number symbolic_event ::= string_from_event_symbols_array generic_hw_event::= cache_type ( "-" ( cache_op | cache_result ) )* event_modifier ::= ":" ( "u" | "k" | "h" )+ with the extra restriction that you can have at most one cache_op and at most one cache_result. We pass the current string pointer by reference (i.e. as a const char **) to the various parsing functions so that they can advance the pointer to indicate how much they consumed. They return 0 if they didn't recognize the thing at the pointer or 1 if they did (and advance the pointer past it). This also fixes parse_aliases to take the longest matching alias from the table, not the first one. Otherwise "l1-data" would match the "l1-d" alias and the "ata" would not be consumed. This allows event modifiers indicating what processor modes to count in to be applied to any event, not just numeric events, and adds a ":h" modifier to indicate counting in hypervisor mode. Specifying ":u" now sets both exclude_kernel and exclude_hv, and so on. Multiple modes can be specified, e.g. ":uk" will count in user or hypervisor mode (i.e. only exclude_kernel will be set). Signed-off-by: Paul Mackerras Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker LKML-Reference: <19018.53826.843815.189847@cargo.ozlabs.ibm.com> Signed-off-by: Ingo Molnar --- tools/perf/util/parse-events.c | 232 ++++++++++++++++++++++++++++------------- 1 file changed, 160 insertions(+), 72 deletions(-) diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 4d042f104cd..e6b83a3311a 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -184,16 +184,20 @@ char *event_name(int counter) return "unknown"; } -static int parse_aliases(const char *str, char *names[][MAX_ALIASES], int size) +static int parse_aliases(const char **str, char *names[][MAX_ALIASES], int size) { int i, j; + int n, longest = -1; for (i = 0; i < size; i++) { - for (j = 0; j < MAX_ALIASES; j++) { - if (!names[i][j]) - break; - if (strcasestr(str, names[i][j])) - return i; + for (j = 0; j < MAX_ALIASES && names[i][j]; j++) { + n = strlen(names[i][j]); + if (n > longest && !strncasecmp(*str, names[i][j], n)) + longest = n; + } + if (longest > 0) { + *str += longest; + return i; } } @@ -201,30 +205,53 @@ static int parse_aliases(const char *str, char *names[][MAX_ALIASES], int size) } static int -parse_generic_hw_symbols(const char *str, struct perf_counter_attr *attr) +parse_generic_hw_event(const char **str, struct perf_counter_attr *attr) { - int cache_type = -1, cache_op = 0, cache_result = 0; + const char *s = *str; + int cache_type = -1, cache_op = -1, cache_result = -1; - cache_type = parse_aliases(str, hw_cache, PERF_COUNT_HW_CACHE_MAX); + cache_type = parse_aliases(&s, hw_cache, PERF_COUNT_HW_CACHE_MAX); /* * No fallback - if we cannot get a clear cache type * then bail out: */ if (cache_type == -1) - return -EINVAL; + return 0; + + while ((cache_op == -1 || cache_result == -1) && *s == '-') { + ++s; + + if (cache_op == -1) { + cache_op = parse_aliases(&s, hw_cache_op, + PERF_COUNT_HW_CACHE_OP_MAX); + if (cache_op >= 0) { + if (!is_cache_op_valid(cache_type, cache_op)) + return 0; + continue; + } + } + + if (cache_result == -1) { + cache_result = parse_aliases(&s, hw_cache_result, + PERF_COUNT_HW_CACHE_RESULT_MAX); + if (cache_result >= 0) + continue; + } + + /* + * Can't parse this as a cache op or result, so back up + * to the '-'. + */ + --s; + break; + } - cache_op = parse_aliases(str, hw_cache_op, PERF_COUNT_HW_CACHE_OP_MAX); /* * Fall back to reads: */ if (cache_op == -1) cache_op = PERF_COUNT_HW_CACHE_OP_READ; - if (!is_cache_op_valid(cache_type, cache_op)) - return -EINVAL; - - cache_result = parse_aliases(str, hw_cache_result, - PERF_COUNT_HW_CACHE_RESULT_MAX); /* * Fall back to accesses: */ @@ -234,93 +261,154 @@ parse_generic_hw_symbols(const char *str, struct perf_counter_attr *attr) attr->config = cache_type | (cache_op << 8) | (cache_result << 16); attr->type = PERF_TYPE_HW_CACHE; - return 0; + *str = s; + return 1; } static int check_events(const char *str, unsigned int i) { - if (!strncmp(str, event_symbols[i].symbol, - strlen(event_symbols[i].symbol))) - return 1; + int n; - if (strlen(event_symbols[i].alias)) - if (!strncmp(str, event_symbols[i].alias, - strlen(event_symbols[i].alias))) - return 1; + n = strlen(event_symbols[i].symbol); + if (!strncmp(str, event_symbols[i].symbol, n)) + return n; + + n = strlen(event_symbols[i].alias); + if (n) + if (!strncmp(str, event_symbols[i].alias, n)) + return n; return 0; } -/* - * Each event can have multiple symbolic names. - * Symbolic names are (almost) exactly matched. - */ -static int parse_event_symbols(const char *str, struct perf_counter_attr *attr) +static int +parse_symbolic_event(const char **strp, struct perf_counter_attr *attr) { - u64 config, id; - int type; + const char *str = *strp; unsigned int i; - const char *sep, *pstr; + int n; - if (str[0] == 'r' && hex2u64(str + 1, &config) > 0) { - attr->type = PERF_TYPE_RAW; - attr->config = config; + for (i = 0; i < ARRAY_SIZE(event_symbols); i++) { + n = check_events(str, i); + if (n > 0) { + attr->type = event_symbols[i].type; + attr->config = event_symbols[i].config; + *strp = str + n; + return 1; + } + } + return 0; +} + +static int parse_raw_event(const char **strp, struct perf_counter_attr *attr) +{ + const char *str = *strp; + u64 config; + int n; + if (*str != 'r') return 0; + n = hex2u64(str + 1, &config); + if (n > 0) { + *strp = str + n + 1; + attr->type = PERF_TYPE_RAW; + attr->config = config; + return 1; } + return 0; +} - pstr = str; - sep = strchr(pstr, ':'); - if (sep) { - type = atoi(pstr); - pstr = sep + 1; - id = atoi(pstr); - sep = strchr(pstr, ':'); - if (sep) { - pstr = sep + 1; - if (strchr(pstr, 'k')) - attr->exclude_user = 1; - if (strchr(pstr, 'u')) - attr->exclude_kernel = 1; +static int +parse_numeric_event(const char **strp, struct perf_counter_attr *attr) +{ + const char *str = *strp; + char *endp; + unsigned long type; + u64 config; + + type = strtoul(str, &endp, 0); + if (endp > str && type < PERF_TYPE_MAX && *endp == ':') { + str = endp + 1; + config = strtoul(str, &endp, 0); + if (endp > str) { + attr->type = type; + attr->config = config; + *strp = endp; + return 1; } - attr->type = type; - attr->config = id; + } + return 0; +} + +static int +parse_event_modifier(const char **strp, struct perf_counter_attr *attr) +{ + const char *str = *strp; + int eu = 1, ek = 1, eh = 1; + if (*str++ != ':') return 0; + while (*str) { + if (*str == 'u') + eu = 0; + else if (*str == 'k') + ek = 0; + else if (*str == 'h') + eh = 0; + else + break; + ++str; } + if (str >= *strp + 2) { + *strp = str; + attr->exclude_user = eu; + attr->exclude_kernel = ek; + attr->exclude_hv = eh; + return 1; + } + return 0; +} - for (i = 0; i < ARRAY_SIZE(event_symbols); i++) { - if (check_events(str, i)) { - attr->type = event_symbols[i].type; - attr->config = event_symbols[i].config; +/* + * Each event can have multiple symbolic names. + * Symbolic names are (almost) exactly matched. + */ +static int parse_event_symbols(const char **str, struct perf_counter_attr *attr) +{ + if (!(parse_raw_event(str, attr) || + parse_numeric_event(str, attr) || + parse_symbolic_event(str, attr) || + parse_generic_hw_event(str, attr))) + return 0; - return 0; - } - } + parse_event_modifier(str, attr); - return parse_generic_hw_symbols(str, attr); + return 1; } int parse_events(const struct option *opt, const char *str, int unset) { struct perf_counter_attr attr; - int ret; - memset(&attr, 0, sizeof(attr)); -again: - if (nr_counters == MAX_COUNTERS) - return -1; + for (;;) { + if (nr_counters == MAX_COUNTERS) + return -1; + + memset(&attr, 0, sizeof(attr)); + if (!parse_event_symbols(&str, &attr)) + return -1; - ret = parse_event_symbols(str, &attr); - if (ret < 0) - return ret; + if (!(*str == 0 || *str == ',' || isspace(*str))) + return -1; - attrs[nr_counters] = attr; - nr_counters++; + attrs[nr_counters] = attr; + nr_counters++; - str = strstr(str, ","); - if (str) { - str++; - goto again; + if (*str == 0) + break; + if (*str == ',') + ++str; + while (isspace(*str)) + ++str; } return 0; -- cgit v1.2.3 From 4a2bb6fcc80e6330ca2f2393e98605052cc7780b Mon Sep 17 00:00:00 2001 From: Masami Hiramatsu Date: Tue, 30 Jun 2009 17:08:09 -0400 Subject: kprobes: No need to unlock kprobe_insn_mutex Remove needless kprobe_insn_mutex unlocking during safety check in garbage collection, because if someone releases a dirty slot during safety check (which ensures other cpus doesn't execute all dirty slots), the safety check must be fail. So, we need to hold the mutex while checking safety. Signed-off-by: Masami Hiramatsu Cc: Ananth N Mavinakayanahalli Cc: Jim Keniston Cc: Ananth N Mavinakayanahalli LKML-Reference: <20090630210809.17851.28781.stgit@localhost.localdomain> Signed-off-by: Ingo Molnar --- kernel/kprobes.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/kernel/kprobes.c b/kernel/kprobes.c index c0fa54b276d..16b5739c516 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -237,13 +237,9 @@ static int __kprobes collect_garbage_slots(void) { struct kprobe_insn_page *kip; struct hlist_node *pos, *next; - int safety; /* Ensure no-one is preepmted on the garbages */ - mutex_unlock(&kprobe_insn_mutex); - safety = check_safety(); - mutex_lock(&kprobe_insn_mutex); - if (safety != 0) + if (check_safety()) return -EAGAIN; hlist_for_each_entry_safe(kip, pos, next, &kprobe_insn_pages, hlist) { -- cgit v1.2.3 From 61fd21670d048017c81e62f60894ef1b04b481db Mon Sep 17 00:00:00 2001 From: Andre Noll Date: Thu, 25 Jun 2009 13:03:04 +0200 Subject: Trivial typo fixes in Documentation/block/data-integrity.txt. Signed-off-by: Andre Noll Acked-by: Martin K. Petersen Signed-off-by: Jens Axboe --- Documentation/block/data-integrity.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/block/data-integrity.txt b/Documentation/block/data-integrity.txt index e8ca040ba2c..2d735b0ae38 100644 --- a/Documentation/block/data-integrity.txt +++ b/Documentation/block/data-integrity.txt @@ -50,7 +50,7 @@ encouraged them to allow separation of the data and integrity metadata scatter-gather lists. The controller will interleave the buffers on write and split them on -read. This means that the Linux can DMA the data buffers to and from +read. This means that Linux can DMA the data buffers to and from host memory without changes to the page cache. Also, the 16-bit CRC checksum mandated by both the SCSI and SATA specs @@ -66,7 +66,7 @@ software RAID5). The IP checksum is weaker than the CRC in terms of detecting bit errors. However, the strength is really in the separation of the data -buffers and the integrity metadata. These two distinct buffers much +buffers and the integrity metadata. These two distinct buffers must match up for an I/O to complete. The separation of the data and integrity metadata buffers as well as -- cgit v1.2.3 From d5036d770f871bd34c9cfd955e6dee692e1e8e81 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Fri, 26 Jun 2009 10:44:34 +0200 Subject: cfq-iosched: move cfqq initialization out of cfq_find_alloc_queue() We're going to be needing that init code outside of that function to get rid of the __GFP_NOFAIL in cfqq allocation. Reviewed-by: Jeff Moyer Signed-off-by: Jens Axboe --- block/cfq-iosched.c | 37 +++++++++++++++++++++---------------- 1 file changed, 21 insertions(+), 16 deletions(-) diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 833ec18eaa6..c760ae7019d 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -1641,6 +1641,26 @@ static void cfq_ioc_set_ioprio(struct io_context *ioc) ioc->ioprio_changed = 0; } +static void cfq_init_cfqq(struct cfq_data *cfqd, struct cfq_queue *cfqq, + pid_t pid, int is_sync) +{ + RB_CLEAR_NODE(&cfqq->rb_node); + RB_CLEAR_NODE(&cfqq->p_node); + INIT_LIST_HEAD(&cfqq->fifo); + + atomic_set(&cfqq->ref, 0); + cfqq->cfqd = cfqd; + + cfq_mark_cfqq_prio_changed(cfqq); + + if (is_sync) { + if (!cfq_class_idle(cfqq)) + cfq_mark_cfqq_idle_window(cfqq); + cfq_mark_cfqq_sync(cfqq); + } + cfqq->pid = pid; +} + static struct cfq_queue * cfq_find_alloc_queue(struct cfq_data *cfqd, int is_sync, struct io_context *ioc, gfp_t gfp_mask) @@ -1678,23 +1698,8 @@ retry: goto out; } - RB_CLEAR_NODE(&cfqq->rb_node); - RB_CLEAR_NODE(&cfqq->p_node); - INIT_LIST_HEAD(&cfqq->fifo); - - atomic_set(&cfqq->ref, 0); - cfqq->cfqd = cfqd; - - cfq_mark_cfqq_prio_changed(cfqq); - + cfq_init_cfqq(cfqd, cfqq, current->pid, is_sync); cfq_init_prio_data(cfqq, ioc); - - if (is_sync) { - if (!cfq_class_idle(cfqq)) - cfq_mark_cfqq_idle_window(cfqq); - cfq_mark_cfqq_sync(cfqq); - } - cfqq->pid = current->pid; cfq_log_cfqq(cfqd, cfqq, "alloced"); } -- cgit v1.2.3 From 6118b70b3a0b4c583439bb77600194c82f220ce3 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Tue, 30 Jun 2009 09:34:12 +0200 Subject: cfq-iosched: get rid of the need for __GFP_NOFAIL in cfq_find_alloc_queue() Setup an emergency fallback cfqq that we allocate at IO scheduler init time. If the slab allocation fails in cfq_find_alloc_queue(), we'll just punt IO to that cfqq instead. This ensures that cfq_find_alloc_queue() never fails without having to ensure free memory. On cfqq lookup, always try to allocate a new cfqq if the given cfq io context has the oom_cfqq assigned. This ensures that we only temporarily punt to this shared queue. Reviewed-by: Jeff Moyer Signed-off-by: Jens Axboe --- block/cfq-iosched.c | 137 ++++++++++++++++++++++++++++------------------------ 1 file changed, 73 insertions(+), 64 deletions(-) diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index c760ae7019d..1d9160ffa26 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -70,6 +70,51 @@ struct cfq_rb_root { }; #define CFQ_RB_ROOT (struct cfq_rb_root) { RB_ROOT, NULL, } +/* + * Per process-grouping structure + */ +struct cfq_queue { + /* reference count */ + atomic_t ref; + /* various state flags, see below */ + unsigned int flags; + /* parent cfq_data */ + struct cfq_data *cfqd; + /* service_tree member */ + struct rb_node rb_node; + /* service_tree key */ + unsigned long rb_key; + /* prio tree member */ + struct rb_node p_node; + /* prio tree root we belong to, if any */ + struct rb_root *p_root; + /* sorted list of pending requests */ + struct rb_root sort_list; + /* if fifo isn't expired, next request to serve */ + struct request *next_rq; + /* requests queued in sort_list */ + int queued[2]; + /* currently allocated requests */ + int allocated[2]; + /* fifo list of requests in sort_list */ + struct list_head fifo; + + unsigned long slice_end; + long slice_resid; + unsigned int slice_dispatch; + + /* pending metadata requests */ + int meta_pending; + /* number of requests that are on the dispatch list or inside driver */ + int dispatched; + + /* io prio of this group */ + unsigned short ioprio, org_ioprio; + unsigned short ioprio_class, org_ioprio_class; + + pid_t pid; +}; + /* * Per block device queue structure */ @@ -135,51 +180,11 @@ struct cfq_data { unsigned int cfq_slice_idle; struct list_head cic_list; -}; -/* - * Per process-grouping structure - */ -struct cfq_queue { - /* reference count */ - atomic_t ref; - /* various state flags, see below */ - unsigned int flags; - /* parent cfq_data */ - struct cfq_data *cfqd; - /* service_tree member */ - struct rb_node rb_node; - /* service_tree key */ - unsigned long rb_key; - /* prio tree member */ - struct rb_node p_node; - /* prio tree root we belong to, if any */ - struct rb_root *p_root; - /* sorted list of pending requests */ - struct rb_root sort_list; - /* if fifo isn't expired, next request to serve */ - struct request *next_rq; - /* requests queued in sort_list */ - int queued[2]; - /* currently allocated requests */ - int allocated[2]; - /* fifo list of requests in sort_list */ - struct list_head fifo; - - unsigned long slice_end; - long slice_resid; - unsigned int slice_dispatch; - - /* pending metadata requests */ - int meta_pending; - /* number of requests that are on the dispatch list or inside driver */ - int dispatched; - - /* io prio of this group */ - unsigned short ioprio, org_ioprio; - unsigned short ioprio_class, org_ioprio_class; - - pid_t pid; + /* + * Fallback dummy cfqq for extreme OOM conditions + */ + struct cfq_queue oom_cfqq; }; enum cfqq_state_flags { @@ -1673,41 +1678,40 @@ retry: /* cic always exists here */ cfqq = cic_to_cfqq(cic, is_sync); - if (!cfqq) { + /* + * Always try a new alloc if we fell back to the OOM cfqq + * originally, since it should just be a temporary situation. + */ + if (!cfqq || cfqq == &cfqd->oom_cfqq) { + cfqq = NULL; if (new_cfqq) { cfqq = new_cfqq; new_cfqq = NULL; } else if (gfp_mask & __GFP_WAIT) { - /* - * Inform the allocator of the fact that we will - * just repeat this allocation if it fails, to allow - * the allocator to do whatever it needs to attempt to - * free memory. - */ spin_unlock_irq(cfqd->queue->queue_lock); new_cfqq = kmem_cache_alloc_node(cfq_pool, - gfp_mask | __GFP_NOFAIL | __GFP_ZERO, + gfp_mask | __GFP_ZERO, cfqd->queue->node); spin_lock_irq(cfqd->queue->queue_lock); - goto retry; + if (new_cfqq) + goto retry; } else { cfqq = kmem_cache_alloc_node(cfq_pool, gfp_mask | __GFP_ZERO, cfqd->queue->node); - if (!cfqq) - goto out; } - cfq_init_cfqq(cfqd, cfqq, current->pid, is_sync); - cfq_init_prio_data(cfqq, ioc); - cfq_log_cfqq(cfqd, cfqq, "alloced"); + if (cfqq) { + cfq_init_cfqq(cfqd, cfqq, current->pid, is_sync); + cfq_init_prio_data(cfqq, ioc); + cfq_log_cfqq(cfqd, cfqq, "alloced"); + } else + cfqq = &cfqd->oom_cfqq; } if (new_cfqq) kmem_cache_free(cfq_pool, new_cfqq); -out: - WARN_ON((gfp_mask & __GFP_WAIT) && !cfqq); return cfqq; } @@ -1740,11 +1744,8 @@ cfq_get_queue(struct cfq_data *cfqd, int is_sync, struct io_context *ioc, cfqq = *async_cfqq; } - if (!cfqq) { + if (!cfqq) cfqq = cfq_find_alloc_queue(cfqd, is_sync, ioc, gfp_mask); - if (!cfqq) - return NULL; - } /* * pin the queue now that it's allocated, scheduler exit will prune it @@ -2470,6 +2471,14 @@ static void *cfq_init_queue(struct request_queue *q) for (i = 0; i < CFQ_PRIO_LISTS; i++) cfqd->prio_trees[i] = RB_ROOT; + /* + * Our fallback cfqq if cfq_find_alloc_queue() runs into OOM issues. + * Grab a permanent reference to it, so that the normal code flow + * will not attempt to free it. + */ + cfq_init_cfqq(cfqd, &cfqd->oom_cfqq, 1, 0); + atomic_inc(&cfqd->oom_cfqq.ref); + INIT_LIST_HEAD(&cfqd->cic_list); cfqd->queue = q; -- cgit v1.2.3 From 7878cba9f0037f5599004b03a1260b32d9050360 Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Fri, 26 Jun 2009 15:37:49 +0200 Subject: block: Create bip slabs with embedded integrity vectors This patch restores stacking ability to the block layer integrity infrastructure by creating a set of dedicated bip slabs. Each bip slab has an embedded bio_vec array at the end. This cuts down on memory allocations and also simplifies the code compared to the original bvec version. Only the largest bip slab is backed by a mempool. The pool is contained in the bio_set so stacking drivers can ensure forward progress. Signed-off-by: Martin K. Petersen Signed-off-by: Jens Axboe --- block/blk-core.c | 2 +- drivers/md/dm.c | 4 +- fs/bio-integrity.c | 170 ++++++++++++++++++++++++++++++++++++++-------------- fs/bio.c | 11 +++- include/linux/bio.h | 22 +++++-- 5 files changed, 152 insertions(+), 57 deletions(-) diff --git a/block/blk-core.c b/block/blk-core.c index b06cf5c2a82..345d99da8d4 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -2365,7 +2365,7 @@ int blk_rq_prep_clone(struct request *rq, struct request *rq_src, __bio_clone(bio, bio_src); if (bio_integrity(bio_src) && - bio_integrity_clone(bio, bio_src, gfp_mask)) + bio_integrity_clone(bio, bio_src, gfp_mask, bs)) goto free_and_out; if (bio_ctr && bio_ctr(bio, bio_src, data)) diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 3c6d4ee8921..9acd54a5cff 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1017,7 +1017,7 @@ static struct bio *split_bvec(struct bio *bio, sector_t sector, clone->bi_flags |= 1 << BIO_CLONED; if (bio_integrity(bio)) { - bio_integrity_clone(clone, bio, GFP_NOIO); + bio_integrity_clone(clone, bio, GFP_NOIO, bs); bio_integrity_trim(clone, bio_sector_offset(bio, idx, offset), len); } @@ -1045,7 +1045,7 @@ static struct bio *clone_bio(struct bio *bio, sector_t sector, clone->bi_flags &= ~(1 << BIO_SEG_VALID); if (bio_integrity(bio)) { - bio_integrity_clone(clone, bio, GFP_NOIO); + bio_integrity_clone(clone, bio, GFP_NOIO, bs); if (idx != bio->bi_idx || clone->bi_size < bio->bi_size) bio_integrity_trim(clone, diff --git a/fs/bio-integrity.c b/fs/bio-integrity.c index 31c46a241ba..49a34e7f730 100644 --- a/fs/bio-integrity.c +++ b/fs/bio-integrity.c @@ -1,7 +1,7 @@ /* * bio-integrity.c - bio data integrity extensions * - * Copyright (C) 2007, 2008 Oracle Corporation + * Copyright (C) 2007, 2008, 2009 Oracle Corporation * Written by: Martin K. Petersen * * This program is free software; you can redistribute it and/or @@ -25,63 +25,121 @@ #include #include -static struct kmem_cache *bio_integrity_slab __read_mostly; -static mempool_t *bio_integrity_pool; -static struct bio_set *integrity_bio_set; +struct integrity_slab { + struct kmem_cache *slab; + unsigned short nr_vecs; + char name[8]; +}; + +#define IS(x) { .nr_vecs = x, .name = "bip-"__stringify(x) } +struct integrity_slab bip_slab[BIOVEC_NR_POOLS] __read_mostly = { + IS(1), IS(4), IS(16), IS(64), IS(128), IS(BIO_MAX_PAGES), +}; +#undef IS + static struct workqueue_struct *kintegrityd_wq; +static inline unsigned int vecs_to_idx(unsigned int nr) +{ + switch (nr) { + case 1: + return 0; + case 2 ... 4: + return 1; + case 5 ... 16: + return 2; + case 17 ... 64: + return 3; + case 65 ... 128: + return 4; + case 129 ... BIO_MAX_PAGES: + return 5; + default: + BUG(); + } +} + +static inline int use_bip_pool(unsigned int idx) +{ + if (idx == BIOVEC_NR_POOLS) + return 1; + + return 0; +} + /** - * bio_integrity_alloc - Allocate integrity payload and attach it to bio + * bio_integrity_alloc_bioset - Allocate integrity payload and attach it to bio * @bio: bio to attach integrity metadata to * @gfp_mask: Memory allocation mask * @nr_vecs: Number of integrity metadata scatter-gather elements + * @bs: bio_set to allocate from * * Description: This function prepares a bio for attaching integrity * metadata. nr_vecs specifies the maximum number of pages containing * integrity metadata that can be attached. */ -struct bio_integrity_payload *bio_integrity_alloc(struct bio *bio, - gfp_t gfp_mask, - unsigned int nr_vecs) +struct bio_integrity_payload *bio_integrity_alloc_bioset(struct bio *bio, + gfp_t gfp_mask, + unsigned int nr_vecs, + struct bio_set *bs) { struct bio_integrity_payload *bip; - struct bio_vec *iv; - unsigned long idx; + unsigned int idx = vecs_to_idx(nr_vecs); BUG_ON(bio == NULL); + bip = NULL; - bip = mempool_alloc(bio_integrity_pool, gfp_mask); - if (unlikely(bip == NULL)) { - printk(KERN_ERR "%s: could not alloc bip\n", __func__); - return NULL; - } + /* Lower order allocations come straight from slab */ + if (!use_bip_pool(idx)) + bip = kmem_cache_alloc(bip_slab[idx].slab, gfp_mask); - memset(bip, 0, sizeof(*bip)); + /* Use mempool if lower order alloc failed or max vecs were requested */ + if (bip == NULL) { + bip = mempool_alloc(bs->bio_integrity_pool, gfp_mask); - iv = bvec_alloc_bs(gfp_mask, nr_vecs, &idx, integrity_bio_set); - if (unlikely(iv == NULL)) { - printk(KERN_ERR "%s: could not alloc bip_vec\n", __func__); - mempool_free(bip, bio_integrity_pool); - return NULL; + if (unlikely(bip == NULL)) { + printk(KERN_ERR "%s: could not alloc bip\n", __func__); + return NULL; + } } - bip->bip_pool = idx; - bip->bip_vec = iv; + memset(bip, 0, sizeof(*bip)); + + bip->bip_slab = idx; bip->bip_bio = bio; bio->bi_integrity = bip; return bip; } +EXPORT_SYMBOL(bio_integrity_alloc_bioset); + +/** + * bio_integrity_alloc - Allocate integrity payload and attach it to bio + * @bio: bio to attach integrity metadata to + * @gfp_mask: Memory allocation mask + * @nr_vecs: Number of integrity metadata scatter-gather elements + * + * Description: This function prepares a bio for attaching integrity + * metadata. nr_vecs specifies the maximum number of pages containing + * integrity metadata that can be attached. + */ +struct bio_integrity_payload *bio_integrity_alloc(struct bio *bio, + gfp_t gfp_mask, + unsigned int nr_vecs) +{ + return bio_integrity_alloc_bioset(bio, gfp_mask, nr_vecs, fs_bio_set); +} EXPORT_SYMBOL(bio_integrity_alloc); /** * bio_integrity_free - Free bio integrity payload * @bio: bio containing bip to be freed + * @bs: bio_set this bio was allocated from * * Description: Used to free the integrity portion of a bio. Usually * called from bio_free(). */ -void bio_integrity_free(struct bio *bio) +void bio_integrity_free(struct bio *bio, struct bio_set *bs) { struct bio_integrity_payload *bip = bio->bi_integrity; @@ -92,8 +150,10 @@ void bio_integrity_free(struct bio *bio) && bip->bip_buf != NULL) kfree(bip->bip_buf); - bvec_free_bs(integrity_bio_set, bip->bip_vec, bip->bip_pool); - mempool_free(bip, bio_integrity_pool); + if (use_bip_pool(bip->bip_slab)) + mempool_free(bip, bs->bio_integrity_pool); + else + kmem_cache_free(bip_slab[bip->bip_slab].slab, bip); bio->bi_integrity = NULL; } @@ -114,7 +174,7 @@ int bio_integrity_add_page(struct bio *bio, struct page *page, struct bio_integrity_payload *bip = bio->bi_integrity; struct bio_vec *iv; - if (bip->bip_vcnt >= bvec_nr_vecs(bip->bip_pool)) { + if (bip->bip_vcnt >= bvec_nr_vecs(bip->bip_slab)) { printk(KERN_ERR "%s: bip_vec full\n", __func__); return 0; } @@ -647,8 +707,8 @@ void bio_integrity_split(struct bio *bio, struct bio_pair *bp, int sectors) bp->iv1 = bip->bip_vec[0]; bp->iv2 = bip->bip_vec[0]; - bp->bip1.bip_vec = &bp->iv1; - bp->bip2.bip_vec = &bp->iv2; + bp->bip1.bip_vec[0] = bp->iv1; + bp->bip2.bip_vec[0] = bp->iv2; bp->iv1.bv_len = sectors * bi->tuple_size; bp->iv2.bv_offset += sectors * bi->tuple_size; @@ -667,17 +727,19 @@ EXPORT_SYMBOL(bio_integrity_split); * @bio: New bio * @bio_src: Original bio * @gfp_mask: Memory allocation mask + * @bs: bio_set to allocate bip from * * Description: Called to allocate a bip when cloning a bio */ -int bio_integrity_clone(struct bio *bio, struct bio *bio_src, gfp_t gfp_mask) +int bio_integrity_clone(struct bio *bio, struct bio *bio_src, + gfp_t gfp_mask, struct bio_set *bs) { struct bio_integrity_payload *bip_src = bio_src->bi_integrity; struct bio_integrity_payload *bip; BUG_ON(bip_src == NULL); - bip = bio_integrity_alloc(bio, gfp_mask, bip_src->bip_vcnt); + bip = bio_integrity_alloc_bioset(bio, gfp_mask, bip_src->bip_vcnt, bs); if (bip == NULL) return -EIO; @@ -693,25 +755,43 @@ int bio_integrity_clone(struct bio *bio, struct bio *bio_src, gfp_t gfp_mask) } EXPORT_SYMBOL(bio_integrity_clone); -static int __init bio_integrity_init(void) +int bioset_integrity_create(struct bio_set *bs, int pool_size) { - kintegrityd_wq = create_workqueue("kintegrityd"); + unsigned int max_slab = vecs_to_idx(BIO_MAX_PAGES); + + bs->bio_integrity_pool = + mempool_create_slab_pool(pool_size, bip_slab[max_slab].slab); + if (!bs->bio_integrity_pool) + return -1; + + return 0; +} +EXPORT_SYMBOL(bioset_integrity_create); + +void bioset_integrity_free(struct bio_set *bs) +{ + if (bs->bio_integrity_pool) + mempool_destroy(bs->bio_integrity_pool); +} +EXPORT_SYMBOL(bioset_integrity_free); + +void __init bio_integrity_init(void) +{ + unsigned int i; + + kintegrityd_wq = create_workqueue("kintegrityd"); if (!kintegrityd_wq) panic("Failed to create kintegrityd\n"); - bio_integrity_slab = KMEM_CACHE(bio_integrity_payload, - SLAB_HWCACHE_ALIGN|SLAB_PANIC); + for (i = 0 ; i < BIOVEC_NR_POOLS ; i++) { + unsigned int size; - bio_integrity_pool = mempool_create_slab_pool(BIO_POOL_SIZE, - bio_integrity_slab); - if (!bio_integrity_pool) - panic("bio_integrity: can't allocate bip pool\n"); + size = sizeof(struct bio_integrity_payload) + + bip_slab[i].nr_vecs * sizeof(struct bio_vec); - integrity_bio_set = bioset_create(BIO_POOL_SIZE, 0); - if (!integrity_bio_set) - panic("bio_integrity: can't allocate bio_set\n"); - - return 0; + bip_slab[i].slab = + kmem_cache_create(bip_slab[i].name, size, 0, + SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL); + } } -subsys_initcall(bio_integrity_init); diff --git a/fs/bio.c b/fs/bio.c index 24c91404353..1486b19fc43 100644 --- a/fs/bio.c +++ b/fs/bio.c @@ -238,7 +238,7 @@ void bio_free(struct bio *bio, struct bio_set *bs) bvec_free_bs(bs, bio->bi_io_vec, BIO_POOL_IDX(bio)); if (bio_integrity(bio)) - bio_integrity_free(bio); + bio_integrity_free(bio, bs); /* * If we have front padding, adjust the bio pointer before freeing @@ -341,7 +341,7 @@ struct bio *bio_alloc(gfp_t gfp_mask, int nr_iovecs) static void bio_kmalloc_destructor(struct bio *bio) { if (bio_integrity(bio)) - bio_integrity_free(bio); + bio_integrity_free(bio, fs_bio_set); kfree(bio); } @@ -472,7 +472,7 @@ struct bio *bio_clone(struct bio *bio, gfp_t gfp_mask) if (bio_integrity(bio)) { int ret; - ret = bio_integrity_clone(b, bio, gfp_mask); + ret = bio_integrity_clone(b, bio, gfp_mask, fs_bio_set); if (ret < 0) { bio_put(b); @@ -1539,6 +1539,7 @@ void bioset_free(struct bio_set *bs) if (bs->bio_pool) mempool_destroy(bs->bio_pool); + bioset_integrity_free(bs); biovec_free_pools(bs); bio_put_slab(bs); @@ -1579,6 +1580,9 @@ struct bio_set *bioset_create(unsigned int pool_size, unsigned int front_pad) if (!bs->bio_pool) goto bad; + if (bioset_integrity_create(bs, pool_size)) + goto bad; + if (!biovec_create_pools(bs, pool_size)) return bs; @@ -1616,6 +1620,7 @@ static int __init init_bio(void) if (!bio_slabs) panic("bio: can't allocate bios\n"); + bio_integrity_init(); biovec_init_slabs(); fs_bio_set = bioset_create(BIO_POOL_SIZE, 0); diff --git a/include/linux/bio.h b/include/linux/bio.h index 2a04eb54c0d..2892b710771 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -319,7 +319,6 @@ static inline int bio_has_allocated_vec(struct bio *bio) */ struct bio_integrity_payload { struct bio *bip_bio; /* parent bio */ - struct bio_vec *bip_vec; /* integrity data vector */ sector_t bip_sector; /* virtual start sector */ @@ -328,11 +327,12 @@ struct bio_integrity_payload { unsigned int bip_size; - unsigned short bip_pool; /* pool the ivec came from */ + unsigned short bip_slab; /* slab the bip came from */ unsigned short bip_vcnt; /* # of integrity bio_vecs */ unsigned short bip_idx; /* current bip_vec index */ struct work_struct bip_work; /* I/O completion */ + struct bio_vec bip_vec[0]; /* embedded bvec array */ }; #endif /* CONFIG_BLK_DEV_INTEGRITY */ @@ -430,6 +430,9 @@ struct bio_set { unsigned int front_pad; mempool_t *bio_pool; +#if defined(CONFIG_BLK_DEV_INTEGRITY) + mempool_t *bio_integrity_pool; +#endif mempool_t *bvec_pool; }; @@ -634,8 +637,9 @@ static inline struct bio *bio_list_get(struct bio_list *bl) #define bio_integrity(bio) (bio->bi_integrity != NULL) +extern struct bio_integrity_payload *bio_integrity_alloc_bioset(struct bio *, gfp_t, unsigned int, struct bio_set *); extern struct bio_integrity_payload *bio_integrity_alloc(struct bio *, gfp_t, unsigned int); -extern void bio_integrity_free(struct bio *); +extern void bio_integrity_free(struct bio *, struct bio_set *); extern int bio_integrity_add_page(struct bio *, struct page *, unsigned int, unsigned int); extern int bio_integrity_enabled(struct bio *bio); extern int bio_integrity_set_tag(struct bio *, void *, unsigned int); @@ -645,21 +649,27 @@ extern void bio_integrity_endio(struct bio *, int); extern void bio_integrity_advance(struct bio *, unsigned int); extern void bio_integrity_trim(struct bio *, unsigned int, unsigned int); extern void bio_integrity_split(struct bio *, struct bio_pair *, int); -extern int bio_integrity_clone(struct bio *, struct bio *, gfp_t); +extern int bio_integrity_clone(struct bio *, struct bio *, gfp_t, struct bio_set *); +extern int bioset_integrity_create(struct bio_set *, int); +extern void bioset_integrity_free(struct bio_set *); +extern void bio_integrity_init(void); #else /* CONFIG_BLK_DEV_INTEGRITY */ #define bio_integrity(a) (0) +#define bioset_integrity_create(a, b) (0) #define bio_integrity_prep(a) (0) #define bio_integrity_enabled(a) (0) -#define bio_integrity_clone(a, b, c) (0) -#define bio_integrity_free(a) do { } while (0) +#define bio_integrity_clone(a, b, c, d) (0) +#define bioset_integrity_free(a) do { } while (0) +#define bio_integrity_free(a, b) do { } while (0) #define bio_integrity_endio(a, b) do { } while (0) #define bio_integrity_advance(a, b) do { } while (0) #define bio_integrity_trim(a, b, c) do { } while (0) #define bio_integrity_split(a, b, c) do { } while (0) #define bio_integrity_set_tag(a, b, c) do { } while (0) #define bio_integrity_get_tag(a, b, c) do { } while (0) +#define bio_integrity_init(a) do { } while (0) #endif /* CONFIG_BLK_DEV_INTEGRITY */ -- cgit v1.2.3 From 018e0446890661504783f92388ecce7138c1566d Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Fri, 26 Jun 2009 16:27:10 +0200 Subject: block: get rid of queue-private command filter The initial patches to support this through sysfs export were broken and have been if 0'ed out in any release. So lets just kill the code and reclaim some space in struct request_queue, if anyone would later like to fixup the sysfs bits, the git history can easily restore the removed bits. Signed-off-by: Jens Axboe --- block/Makefile | 2 +- block/blk-core.c | 2 - block/bsg.c | 2 +- block/cmd-filter.c | 233 ------------------------------------------------- block/scsi_ioctl.c | 43 +++++++-- drivers/scsi/sg.c | 4 +- include/linux/blkdev.h | 15 +--- 7 files changed, 42 insertions(+), 259 deletions(-) delete mode 100644 block/cmd-filter.c diff --git a/block/Makefile b/block/Makefile index e9fa4dd690f..6c54ed0ff75 100644 --- a/block/Makefile +++ b/block/Makefile @@ -5,7 +5,7 @@ obj-$(CONFIG_BLOCK) := elevator.o blk-core.o blk-tag.o blk-sysfs.o \ blk-barrier.o blk-settings.o blk-ioc.o blk-map.o \ blk-exec.o blk-merge.o blk-softirq.o blk-timeout.o \ - ioctl.o genhd.o scsi_ioctl.o cmd-filter.o + ioctl.o genhd.o scsi_ioctl.o obj-$(CONFIG_BLK_DEV_BSG) += bsg.o obj-$(CONFIG_IOSCHED_NOOP) += noop-iosched.o diff --git a/block/blk-core.c b/block/blk-core.c index 345d99da8d4..02b87134a16 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -595,8 +595,6 @@ blk_init_queue_node(request_fn_proc *rfn, spinlock_t *lock, int node_id) q->sg_reserved_size = INT_MAX; - blk_set_cmd_filter_defaults(&q->cmd_filter); - /* * all done */ diff --git a/block/bsg.c b/block/bsg.c index e7d47525424..5f184bb3ff9 100644 --- a/block/bsg.c +++ b/block/bsg.c @@ -186,7 +186,7 @@ static int blk_fill_sgv4_hdr_rq(struct request_queue *q, struct request *rq, return -EFAULT; if (hdr->subprotocol == BSG_SUB_PROTOCOL_SCSI_CMD) { - if (blk_verify_command(&q->cmd_filter, rq->cmd, has_write_perm)) + if (blk_verify_command(rq->cmd, has_write_perm)) return -EPERM; } else if (!capable(CAP_SYS_RAWIO)) return -EPERM; diff --git a/block/cmd-filter.c b/block/cmd-filter.c deleted file mode 100644 index 572bbc2f900..00000000000 --- a/block/cmd-filter.c +++ /dev/null @@ -1,233 +0,0 @@ -/* - * Copyright 2004 Peter M. Jones - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public Licens - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111- - * - */ - -#include -#include -#include -#include -#include -#include - -#include -#include - -int blk_verify_command(struct blk_cmd_filter *filter, - unsigned char *cmd, fmode_t has_write_perm) -{ - /* root can do any command. */ - if (capable(CAP_SYS_RAWIO)) - return 0; - - /* if there's no filter set, assume we're filtering everything out */ - if (!filter) - return -EPERM; - - /* Anybody who can open the device can do a read-safe command */ - if (test_bit(cmd[0], filter->read_ok)) - return 0; - - /* Write-safe commands require a writable open */ - if (test_bit(cmd[0], filter->write_ok) && has_write_perm) - return 0; - - return -EPERM; -} -EXPORT_SYMBOL(blk_verify_command); - -#if 0 -/* and now, the sysfs stuff */ -static ssize_t rcf_cmds_show(struct blk_cmd_filter *filter, char *page, - int rw) -{ - char *npage = page; - unsigned long *okbits; - int i; - - if (rw == READ) - okbits = filter->read_ok; - else - okbits = filter->write_ok; - - for (i = 0; i < BLK_SCSI_MAX_CMDS; i++) { - if (test_bit(i, okbits)) { - npage += sprintf(npage, "0x%02x", i); - if (i < BLK_SCSI_MAX_CMDS - 1) - sprintf(npage++, " "); - } - } - - if (npage != page) - npage += sprintf(npage, "\n"); - - return npage - page; -} - -static ssize_t rcf_readcmds_show(struct blk_cmd_filter *filter, char *page) -{ - return rcf_cmds_show(filter, page, READ); -} - -static ssize_t rcf_writecmds_show(struct blk_cmd_filter *filter, - char *page) -{ - return rcf_cmds_show(filter, page, WRITE); -} - -static ssize_t rcf_cmds_store(struct blk_cmd_filter *filter, - const char *page, size_t count, int rw) -{ - unsigned long okbits[BLK_SCSI_CMD_PER_LONG], *target_okbits; - int cmd, set; - char *p, *status; - - if (rw == READ) { - memcpy(&okbits, filter->read_ok, sizeof(okbits)); - target_okbits = filter->read_ok; - } else { - memcpy(&okbits, filter->write_ok, sizeof(okbits)); - target_okbits = filter->write_ok; - } - - while ((p = strsep((char **)&page, " ")) != NULL) { - set = 1; - - if (p[0] == '+') { - p++; - } else if (p[0] == '-') { - set = 0; - p++; - } - - cmd = simple_strtol(p, &status, 16); - - /* either of these cases means invalid input, so do nothing. */ - if ((status == p) || cmd >= BLK_SCSI_MAX_CMDS) - return -EINVAL; - - if (set) - __set_bit(cmd, okbits); - else - __clear_bit(cmd, okbits); - } - - memcpy(target_okbits, okbits, sizeof(okbits)); - return count; -} - -static ssize_t rcf_readcmds_store(struct blk_cmd_filter *filter, - const char *page, size_t count) -{ - return rcf_cmds_store(filter, page, count, READ); -} - -static ssize_t rcf_writecmds_store(struct blk_cmd_filter *filter, - const char *page, size_t count) -{ - return rcf_cmds_store(filter, page, count, WRITE); -} - -struct rcf_sysfs_entry { - struct attribute attr; - ssize_t (*show)(struct blk_cmd_filter *, char *); - ssize_t (*store)(struct blk_cmd_filter *, const char *, size_t); -}; - -static struct rcf_sysfs_entry rcf_readcmds_entry = { - .attr = { .name = "read_table", .mode = S_IRUGO | S_IWUSR }, - .show = rcf_readcmds_show, - .store = rcf_readcmds_store, -}; - -static struct rcf_sysfs_entry rcf_writecmds_entry = { - .attr = {.name = "write_table", .mode = S_IRUGO | S_IWUSR }, - .show = rcf_writecmds_show, - .store = rcf_writecmds_store, -}; - -static struct attribute *default_attrs[] = { - &rcf_readcmds_entry.attr, - &rcf_writecmds_entry.attr, - NULL, -}; - -#define to_rcf(atr) container_of((atr), struct rcf_sysfs_entry, attr) - -static ssize_t -rcf_attr_show(struct kobject *kobj, struct attribute *attr, char *page) -{ - struct rcf_sysfs_entry *entry = to_rcf(attr); - struct blk_cmd_filter *filter; - - filter = container_of(kobj, struct blk_cmd_filter, kobj); - if (entry->show) - return entry->show(filter, page); - - return 0; -} - -static ssize_t -rcf_attr_store(struct kobject *kobj, struct attribute *attr, - const char *page, size_t length) -{ - struct rcf_sysfs_entry *entry = to_rcf(attr); - struct blk_cmd_filter *filter; - - if (!capable(CAP_SYS_RAWIO)) - return -EPERM; - - if (!entry->store) - return -EINVAL; - - filter = container_of(kobj, struct blk_cmd_filter, kobj); - return entry->store(filter, page, length); -} - -static struct sysfs_ops rcf_sysfs_ops = { - .show = rcf_attr_show, - .store = rcf_attr_store, -}; - -static struct kobj_type rcf_ktype = { - .sysfs_ops = &rcf_sysfs_ops, - .default_attrs = default_attrs, -}; - -int blk_register_filter(struct gendisk *disk) -{ - int ret; - struct blk_cmd_filter *filter = &disk->queue->cmd_filter; - - ret = kobject_init_and_add(&filter->kobj, &rcf_ktype, - &disk_to_dev(disk)->kobj, - "%s", "cmd_filter"); - if (ret < 0) - return ret; - - return 0; -} -EXPORT_SYMBOL(blk_register_filter); - -void blk_unregister_filter(struct gendisk *disk) -{ - struct blk_cmd_filter *filter = &disk->queue->cmd_filter; - - kobject_put(&filter->kobj); -} -EXPORT_SYMBOL(blk_unregister_filter); -#endif diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c index 5f8e798ede4..f0e0ce0a607 100644 --- a/block/scsi_ioctl.c +++ b/block/scsi_ioctl.c @@ -32,6 +32,11 @@ #include #include +struct blk_cmd_filter { + unsigned long read_ok[BLK_SCSI_CMD_PER_LONG]; + unsigned long write_ok[BLK_SCSI_CMD_PER_LONG]; +} blk_default_cmd_filter; + /* Command group 3 is reserved and should never be used. */ const unsigned char scsi_command_size_tbl[8] = { @@ -105,7 +110,7 @@ static int sg_emulated_host(struct request_queue *q, int __user *p) return put_user(1, p); } -void blk_set_cmd_filter_defaults(struct blk_cmd_filter *filter) +static void blk_set_cmd_filter_defaults(struct blk_cmd_filter *filter) { /* Basic read-only commands */ __set_bit(TEST_UNIT_READY, filter->read_ok); @@ -187,14 +192,37 @@ void blk_set_cmd_filter_defaults(struct blk_cmd_filter *filter) __set_bit(GPCMD_SET_STREAMING, filter->write_ok); __set_bit(GPCMD_SET_READ_AHEAD, filter->write_ok); } -EXPORT_SYMBOL_GPL(blk_set_cmd_filter_defaults); + +int blk_verify_command(unsigned char *cmd, fmode_t has_write_perm) +{ + struct blk_cmd_filter *filter = &blk_default_cmd_filter; + + /* root can do any command. */ + if (capable(CAP_SYS_RAWIO)) + return 0; + + /* if there's no filter set, assume we're filtering everything out */ + if (!filter) + return -EPERM; + + /* Anybody who can open the device can do a read-safe command */ + if (test_bit(cmd[0], filter->read_ok)) + return 0; + + /* Write-safe commands require a writable open */ + if (test_bit(cmd[0], filter->write_ok) && has_write_perm) + return 0; + + return -EPERM; +} +EXPORT_SYMBOL(blk_verify_command); static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq, struct sg_io_hdr *hdr, fmode_t mode) { if (copy_from_user(rq->cmd, hdr->cmdp, hdr->cmd_len)) return -EFAULT; - if (blk_verify_command(&q->cmd_filter, rq->cmd, mode & FMODE_WRITE)) + if (blk_verify_command(rq->cmd, mode & FMODE_WRITE)) return -EPERM; /* @@ -427,7 +455,7 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode, if (in_len && copy_from_user(buffer, sic->data + cmdlen, in_len)) goto error; - err = blk_verify_command(&q->cmd_filter, rq->cmd, mode & FMODE_WRITE); + err = blk_verify_command(rq->cmd, mode & FMODE_WRITE); if (err) goto error; @@ -645,5 +673,10 @@ int scsi_cmd_ioctl(struct request_queue *q, struct gendisk *bd_disk, fmode_t mod blk_put_queue(q); return err; } - EXPORT_SYMBOL(scsi_cmd_ioctl); + +int __init blk_scsi_ioctl_init(void) +{ + blk_set_cmd_filter_defaults(&blk_default_cmd_filter); + return 0; +} diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 8201387b4da..ef142fd47a8 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -210,13 +210,11 @@ static void sg_put_dev(Sg_device *sdp); static int sg_allow_access(struct file *filp, unsigned char *cmd) { struct sg_fd *sfp = (struct sg_fd *)filp->private_data; - struct request_queue *q = sfp->parentdp->device->request_queue; if (sfp->parentdp->device->type == TYPE_SCANNER) return 0; - return blk_verify_command(&q->cmd_filter, - cmd, filp->f_mode & FMODE_WRITE); + return blk_verify_command(cmd, filp->f_mode & FMODE_WRITE); } static int diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 8963d9149b5..49ae07951d5 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -301,12 +301,6 @@ struct blk_queue_tag { #define BLK_SCSI_MAX_CMDS (256) #define BLK_SCSI_CMD_PER_LONG (BLK_SCSI_MAX_CMDS / (sizeof(long) * 8)) -struct blk_cmd_filter { - unsigned long read_ok[BLK_SCSI_CMD_PER_LONG]; - unsigned long write_ok[BLK_SCSI_CMD_PER_LONG]; - struct kobject kobj; -}; - struct queue_limits { unsigned long bounce_pfn; unsigned long seg_boundary_mask; @@ -445,7 +439,6 @@ struct request_queue #if defined(CONFIG_BLK_DEV_BSG) struct bsg_class_device bsg_dev; #endif - struct blk_cmd_filter cmd_filter; }; #define QUEUE_FLAG_CLUSTER 0 /* cluster several segments into 1 */ @@ -998,13 +991,7 @@ static inline int sb_issue_discard(struct super_block *sb, return blkdev_issue_discard(sb->s_bdev, block, nr_blocks, GFP_KERNEL); } -/* -* command filter functions -*/ -extern int blk_verify_command(struct blk_cmd_filter *filter, - unsigned char *cmd, fmode_t has_write_perm); -extern void blk_unregister_filter(struct gendisk *disk); -extern void blk_set_cmd_filter_defaults(struct blk_cmd_filter *filter); +extern int blk_verify_command(unsigned char *cmd, fmode_t has_write_perm); #define MAX_PHYS_SEGMENTS 128 #define MAX_HW_SEGMENTS 128 -- cgit v1.2.3 From db64f680ba4b5c56c4be59f0698000df89ff0281 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 30 Jun 2009 09:35:44 +0200 Subject: blocK: Restore barrier support for md and probably other virtual devices. The next_ordered flag is only meaningful for devices that use __make_request. So move the test against next_ordered out of generic code and in to __make_request Since this test was added, barriers have not worked on md or any devices that don't use __make_request and so don't bother to set next_ordered. (dm explicitly sets something other than QUEUE_ORDERED_NONE since commit 99360b4c18f7675b50d283301d46d755affe75fd but notes in the comments that it is otherwise meaningless). Cc: Ken Milmore Cc: stable@kernel.org Signed-off-by: NeilBrown Signed-off-by: Jens Axboe --- block/blk-core.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/block/blk-core.c b/block/blk-core.c index 02b87134a16..4b45435c6ea 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -1170,6 +1170,11 @@ static int __make_request(struct request_queue *q, struct bio *bio) const int unplug = bio_unplug(bio); int rw_flags; + if (bio_barrier(bio) && bio_has_data(bio) && + (q->next_ordered == QUEUE_ORDERED_NONE)) { + bio_endio(bio, -EOPNOTSUPP); + return 0; + } /* * low level driver can indicate that it wants pages above a * certain limit bounced to low memory (ie for highmem, or even @@ -1470,11 +1475,6 @@ static inline void __generic_make_request(struct bio *bio) err = -EOPNOTSUPP; goto end_io; } - if (bio_barrier(bio) && bio_has_data(bio) && - (q->next_ordered == QUEUE_ORDERED_NONE)) { - err = -EOPNOTSUPP; - goto end_io; - } ret = q->make_request_fn(q, bio); } while (ret); -- cgit v1.2.3 From 88a69dfbc6ab1e3b51bba8c9103055e21089ebb9 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Wed, 1 Jul 2009 11:17:20 +0200 Subject: perf report: Fix HV bit mismerge MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix: builtin-report.c: In function ‘hist_entry__add’: builtin-report.c:1015: error: case label not within a switch statement builtin-report.c:1017: error: break statement not within loop or switch Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker LKML-Reference: Signed-off-by: Ingo Molnar --- tools/perf/builtin-report.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 197793051fa..7d2b49adcdc 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -964,6 +964,9 @@ resolve_callchain(struct thread *thread, struct map *map, } switch (context) { + case PERF_CONTEXT_HV: + dso = hypervisor_dso; + break; case PERF_CONTEXT_KERNEL: dso = kernel_dso; break; @@ -1012,9 +1015,6 @@ hist_entry__add(struct thread *thread, struct map *map, struct dso *dso, }; int cmp; - case PERF_CONTEXT_HV: - dso = hypervisor_dso; - break; if ((sort__has_parent || callchain) && chain) syms = resolve_callchain(thread, map, chain, &entry); -- cgit v1.2.3 From a70c352a37671fe1ebcbd317b439aa4760f4ccb7 Mon Sep 17 00:00:00 2001 From: Pekka Enberg Date: Wed, 1 Jul 2009 11:51:18 +0300 Subject: xen: Use kcalloc() in xen_init_IRQ() The init_IRQ() function is now called with slab allocator initialized. Therefore, we must not use the bootmem allocator in xen_init_IRQ(). Fixes the following boot-time warning: ------------[ cut here ]------------ WARNING: at mm/bootmem.c:535 alloc_arch_preferred_bootmem+0x27/0x45() Modules linked in: Pid: 0, comm: swapper Not tainted 2.6.30 #1 Call Trace: [] ? warn_slowpath_common+0x73/0xb0 [] ? pvclock_clocksource_read+0x49/0x90 [] ? alloc_arch_preferred_bootmem+0x27/0x45 [] ? ___alloc_bootmem_nopanic+0x39/0xc9 [] ? ___alloc_bootmem+0x9/0x2f [] ? xen_init_IRQ+0x25/0x61 [] ? start_kernel+0x1b5/0x29e ---[ end trace 4eaa2a86a8e2da22 ]--- Acked-by: Jeremy Fitzhardinge Tested-by: Christian Kujau Reported-by: Christian Kujau Signed-off-by: Pekka Enberg Cc: lists@nerdbynature.de Cc: jeremy.fitzhardinge@citrix.com LKML-Reference: <1246438278.22417.28.camel@penberg-laptop> Signed-off-by: Ingo Molnar --- drivers/xen/events.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/xen/events.c b/drivers/xen/events.c index 891d2e90753..abad71b1632 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -927,9 +927,9 @@ static struct irq_chip xen_dynamic_chip __read_mostly = { void __init xen_init_IRQ(void) { int i; - size_t size = nr_cpu_ids * sizeof(struct cpu_evtchn_s); - cpu_evtchn_mask_p = alloc_bootmem(size); + cpu_evtchn_mask_p = kcalloc(nr_cpu_ids, sizeof(struct cpu_evtchn_s), + GFP_KERNEL); BUG_ON(cpu_evtchn_mask_p == NULL); init_evtchn_cpu_bindings(); -- cgit v1.2.3 From b706f64281b24d8b1fdc8ae883700131d365c412 Mon Sep 17 00:00:00 2001 From: Shan Wei Date: Wed, 1 Jul 2009 12:41:14 +0200 Subject: cfq-iosched: remove redundant check for NULL cfqq in cfq_set_request() With the changes for falling back to an oom_cfqq, we never fail to find/allocate a queue in cfq_get_queue(). So remove the check. Signed-off-by: Shan Wei Signed-off-by: Jens Axboe --- block/cfq-iosched.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 1d9160ffa26..87276eb83f7 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -2313,10 +2313,6 @@ cfq_set_request(struct request_queue *q, struct request *rq, gfp_t gfp_mask) cfqq = cic_to_cfqq(cic, is_sync); if (!cfqq) { cfqq = cfq_get_queue(cfqd, is_sync, cic->ioc, gfp_mask); - - if (!cfqq) - goto queue_fail; - cic_set_cfqq(cic, cfqq, is_sync); } -- cgit v1.2.3 From f37a291c527c954df4da568de718ebb36b8261c0 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Wed, 1 Jul 2009 12:37:06 +0200 Subject: perf_counter tools: Add more warnings and fix/annotate them Enable -Wextra. This found a few real bugs plus a number of signed/unsigned type mismatches/uncleanlinesses. It also required a few annotations All things considered it was still worth it so lets try with this enabled for now. Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker LKML-Reference: Signed-off-by: Ingo Molnar --- tools/perf/Makefile | 2 +- tools/perf/builtin-annotate.c | 12 +++++------ tools/perf/builtin-help.c | 6 ++++-- tools/perf/builtin-list.c | 2 +- tools/perf/builtin-record.c | 4 ++-- tools/perf/builtin-report.c | 22 ++++++++++---------- tools/perf/builtin-stat.c | 18 +++++++++------- tools/perf/builtin-top.c | 8 +++---- tools/perf/perf.c | 5 +---- tools/perf/perf.h | 2 ++ tools/perf/util/alias.c | 2 +- tools/perf/util/cache.h | 1 + tools/perf/util/callchain.c | 15 +++++++------- tools/perf/util/callchain.h | 10 ++++----- tools/perf/util/color.c | 10 ++++++--- tools/perf/util/config.c | 18 +++++++++------- tools/perf/util/exec_cmd.c | 5 ++++- tools/perf/util/help.c | 26 +++++++++++++---------- tools/perf/util/help.h | 6 +++--- tools/perf/util/parse-events.c | 2 +- tools/perf/util/parse-options.c | 2 +- tools/perf/util/parse-options.h | 25 +++++++++++----------- tools/perf/util/quote.c | 46 ++++++++++++++++++++++------------------- tools/perf/util/quote.h | 2 +- tools/perf/util/strbuf.c | 13 ++++++------ tools/perf/util/strbuf.h | 10 ++++----- tools/perf/util/wrapper.c | 5 +++-- 27 files changed, 151 insertions(+), 128 deletions(-) diff --git a/tools/perf/Makefile b/tools/perf/Makefile index f572c90f610..eddf076b19d 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -164,7 +164,7 @@ endif # CFLAGS and LDFLAGS are for the users to override from the command line. -CFLAGS = $(M64) -ggdb3 -Wall -Wstrict-prototypes -Wmissing-declarations -Wmissing-prototypes -std=gnu99 -Wdeclaration-after-statement -Werror -O6 +CFLAGS = $(M64) -ggdb3 -Wall -Wextra -Wstrict-prototypes -Wmissing-declarations -Wmissing-prototypes -std=gnu99 -Wdeclaration-after-statement -Werror -O6 LDFLAGS = -lpthread -lrt -lelf -lm ALL_CFLAGS = $(CFLAGS) ALL_LDFLAGS = $(LDFLAGS) diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index 722c0f54e54..6cba70daf12 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c @@ -160,7 +160,7 @@ static void dsos__fprintf(FILE *fp) static struct symbol *vdso__find_symbol(struct dso *dso, u64 ip) { - return dso__find_symbol(kernel_dso, ip); + return dso__find_symbol(dso, ip); } static int load_kernel(void) @@ -203,7 +203,7 @@ static u64 map__map_ip(struct map *map, u64 ip) return ip - map->start + map->pgoff; } -static u64 vdso__map_ip(struct map *map, u64 ip) +static u64 vdso__map_ip(struct map *map __used, u64 ip) { return ip; } @@ -600,7 +600,7 @@ static LIST_HEAD(hist_entry__sort_list); static int sort_dimension__add(char *tok) { - int i; + unsigned int i; for (i = 0; i < ARRAY_SIZE(sort_dimensions); i++) { struct sort_dimension *sd = &sort_dimensions[i]; @@ -1069,7 +1069,7 @@ parse_line(FILE *file, struct symbol *sym, u64 start, u64 len) static const char *prev_color; unsigned int offset; size_t line_len; - u64 line_ip; + s64 line_ip; int ret; char *c; @@ -1428,7 +1428,7 @@ more: head += size; - if (offset + head < stat.st_size) + if (offset + head < (unsigned long)stat.st_size) goto more; rc = EXIT_SUCCESS; @@ -1492,7 +1492,7 @@ static void setup_sorting(void) free(str); } -int cmd_annotate(int argc, const char **argv, const char *prefix) +int cmd_annotate(int argc, const char **argv, const char *prefix __used) { symbol__init(); diff --git a/tools/perf/builtin-help.c b/tools/perf/builtin-help.c index 0f32dc3f3c4..2599d86a733 100644 --- a/tools/perf/builtin-help.c +++ b/tools/perf/builtin-help.c @@ -3,6 +3,7 @@ * * Builtin help command */ +#include "perf.h" #include "util/cache.h" #include "builtin.h" #include "util/exec_cmd.h" @@ -277,7 +278,7 @@ static struct cmdnames main_cmds, other_cmds; void list_common_cmds_help(void) { - int i, longest = 0; + unsigned int i, longest = 0; for (i = 0; i < ARRAY_SIZE(common_cmds); i++) { if (longest < strlen(common_cmds[i].name)) @@ -415,9 +416,10 @@ static void show_html_page(const char *perf_cmd) open_html(page_path.buf); } -int cmd_help(int argc, const char **argv, const char *prefix) +int cmd_help(int argc, const char **argv, const char *prefix __used) { const char *alias; + load_command_list("perf-", &main_cmds, &other_cmds); perf_config(perf_help_config, NULL); diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c index fe60e37c96e..f990fa8a35c 100644 --- a/tools/perf/builtin-list.c +++ b/tools/perf/builtin-list.c @@ -13,7 +13,7 @@ #include "util/parse-options.h" #include "util/parse-events.h" -int cmd_list(int argc, const char **argv, const char *prefix) +int cmd_list(int argc __used, const char **argv __used, const char *prefix __used) { print_events(); return 0; diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index d18546f37d7..4ef78a5e6f3 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -294,7 +294,7 @@ static void pid_synthesize_mmap_samples(pid_t pid) while (1) { char bf[BUFSIZ], *pbf = bf; struct mmap_event mmap_ev = { - .header.type = PERF_EVENT_MMAP, + .header = { .type = PERF_EVENT_MMAP }, }; int n; size_t size; @@ -650,7 +650,7 @@ static const struct option options[] = { OPT_END() }; -int cmd_record(int argc, const char **argv, const char *prefix) +int cmd_record(int argc, const char **argv, const char *prefix __used) { int counter; diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 7d2b49adcdc..007363db3b1 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -177,7 +177,7 @@ static void dsos__fprintf(FILE *fp) static struct symbol *vdso__find_symbol(struct dso *dso, u64 ip) { - return dso__find_symbol(kernel_dso, ip); + return dso__find_symbol(dso, ip); } static int load_kernel(void) @@ -239,7 +239,7 @@ static u64 map__map_ip(struct map *map, u64 ip) return ip - map->start + map->pgoff; } -static u64 vdso__map_ip(struct map *map, u64 ip) +static u64 vdso__map_ip(struct map *map __used, u64 ip) { return ip; } @@ -712,7 +712,7 @@ static LIST_HEAD(hist_entry__sort_list); static int sort_dimension__add(char *tok) { - int i; + unsigned int i; for (i = 0; i < ARRAY_SIZE(sort_dimensions); i++) { struct sort_dimension *sd = &sort_dimensions[i]; @@ -801,7 +801,7 @@ callchain__fprintf(FILE *fp, struct callchain_node *self, u64 total_samples) ret += fprintf(fp, " %s\n", chain->sym->name); else ret += fprintf(fp, " %p\n", - (void *)chain->ip); + (void *)(long)chain->ip); } return ret; @@ -938,12 +938,12 @@ static int call__match(struct symbol *sym) } static struct symbol ** -resolve_callchain(struct thread *thread, struct map *map, +resolve_callchain(struct thread *thread, struct map *map __used, struct ip_callchain *chain, struct hist_entry *entry) { - int i; - struct symbol **syms; u64 context = PERF_CONTEXT_MAX; + struct symbol **syms; + unsigned int i; if (callchain) { syms = calloc(chain->nr, sizeof(*syms)); @@ -1183,7 +1183,7 @@ static size_t output__fprintf(FILE *fp, u64 total_samples) fprintf(fp, "# ........"); list_for_each_entry(se, &hist_entry__sort_list, list) { - int i; + unsigned int i; if (exclude_other && (se == &sort_parent)) continue; @@ -1271,7 +1271,7 @@ process_sample_event(event_t *event, unsigned long offset, unsigned long head) (long long)period); if (sample_type & PERF_SAMPLE_CALLCHAIN) { - int i; + unsigned int i; chain = (void *)more_data; @@ -1667,7 +1667,7 @@ more: if (offset + head >= header->data_offset + header->data_size) goto done; - if (offset + head < stat.st_size) + if (offset + head < (unsigned long)stat.st_size) goto more; done: @@ -1756,7 +1756,7 @@ static void setup_list(struct strlist **list, const char *list_str, } } -int cmd_report(int argc, const char **argv, const char *prefix) +int cmd_report(int argc, const char **argv, const char *prefix __used) { symbol__init(); diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 2e03524a1de..095a90e012a 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -64,7 +64,7 @@ static struct perf_counter_attr default_attrs[] = { static int system_wide = 0; static int verbose = 0; -static int nr_cpus = 0; +static unsigned int nr_cpus = 0; static int run_idx = 0; static int run_count = 1; @@ -108,7 +108,8 @@ static void create_perf_stat_counter(int counter, int pid) PERF_FORMAT_TOTAL_TIME_RUNNING; if (system_wide) { - int cpu; + unsigned int cpu; + for (cpu = 0; cpu < nr_cpus; cpu++) { fd[cpu][counter] = sys_perf_counter_open(attr, -1, cpu, -1, 0); if (fd[cpu][counter] < 0 && verbose) @@ -150,8 +151,8 @@ static inline int nsec_counter(int counter) static void read_counter(int counter) { u64 *count, single_count[3]; - ssize_t res; - int cpu, nv; + unsigned int cpu; + size_t res, nv; int scaled; count = event_res[run_idx][counter]; @@ -165,6 +166,7 @@ static void read_counter(int counter) res = read(fd[cpu][counter], single_count, nv * sizeof(u64)); assert(res == nv * sizeof(u64)); + close(fd[cpu][counter]); fd[cpu][counter] = -1; @@ -200,7 +202,7 @@ static void read_counter(int counter) runtime_cycles[run_idx] = count[0]; } -static int run_perf_stat(int argc, const char **argv) +static int run_perf_stat(int argc __used, const char **argv) { unsigned long long t0, t1; int status = 0; @@ -390,7 +392,7 @@ static void calc_avg(void) event_res_avg[j]+1, event_res[i][j]+1); update_avg("counter/2", j, event_res_avg[j]+2, event_res[i][j]+2); - if (event_scaled[i][j] != -1) + if (event_scaled[i][j] != (u64)-1) update_avg("scaled", j, event_scaled_avg + j, event_scaled[i]+j); else @@ -510,7 +512,7 @@ static const struct option options[] = { OPT_END() }; -int cmd_stat(int argc, const char **argv, const char *prefix) +int cmd_stat(int argc, const char **argv, const char *prefix __used) { int status; @@ -528,7 +530,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix) nr_cpus = sysconf(_SC_NPROCESSORS_ONLN); assert(nr_cpus <= MAX_NR_CPUS); - assert(nr_cpus >= 0); + assert((int)nr_cpus >= 0); /* * We dont want to block the signals - that would cause diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 0506cd6e04c..5f5e7df8302 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -269,7 +269,7 @@ static void print_sym_table(void) } } -static void *display_thread(void *arg) +static void *display_thread(void *arg __used) { struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; int delay_msecs = delay_secs * 1000; @@ -287,7 +287,7 @@ static void *display_thread(void *arg) } /* Tag samples to be skipped. */ -char *skip_symbols[] = { +static const char *skip_symbols[] = { "default_idle", "cpu_idle", "enter_idle", @@ -426,7 +426,7 @@ static void process_event(u64 ip, int counter, int user) struct mmap_data { int counter; void *base; - unsigned int mask; + int mask; unsigned int prev; }; @@ -705,7 +705,7 @@ static const struct option options[] = { OPT_END() }; -int cmd_top(int argc, const char **argv, const char *prefix) +int cmd_top(int argc, const char **argv, const char *prefix __used) { int counter; diff --git a/tools/perf/perf.c b/tools/perf/perf.c index 4eb72593370..c5656784c61 100644 --- a/tools/perf/perf.c +++ b/tools/perf/perf.c @@ -229,9 +229,6 @@ static int run_builtin(struct cmd_struct *p, int argc, const char **argv) use_pager = 1; commit_pager_choice(); - if (p->option & NEED_WORK_TREE) - /* setup_work_tree() */; - status = p->fn(argc, argv, prefix); if (status) return status & 0xff; @@ -266,7 +263,7 @@ static void handle_internal_command(int argc, const char **argv) { "annotate", cmd_annotate, 0 }, { "version", cmd_version, 0 }, }; - int i; + unsigned int i; static const char ext[] = STRIP_EXTENSION; if (sizeof(ext) > 1) { diff --git a/tools/perf/perf.h b/tools/perf/perf.h index ce394192c85..27887c91643 100644 --- a/tools/perf/perf.h +++ b/tools/perf/perf.h @@ -52,6 +52,8 @@ static inline unsigned long long rdclock(void) #define __user #define asmlinkage +#define __used __attribute__((__unused__)) + #define unlikely(x) __builtin_expect(!!(x), 0) #define min(x, y) ({ \ typeof(x) _min1 = (x); \ diff --git a/tools/perf/util/alias.c b/tools/perf/util/alias.c index 9b3dd2b428d..b8144e80bb1 100644 --- a/tools/perf/util/alias.c +++ b/tools/perf/util/alias.c @@ -3,7 +3,7 @@ static const char *alias_key; static char *alias_val; -static int alias_lookup_cb(const char *k, const char *v, void *cb) +static int alias_lookup_cb(const char *k, const char *v, void *cb __used) { if (!prefixcmp(k, "alias.") && !strcmp(k+6, alias_key)) { if (!v) diff --git a/tools/perf/util/cache.h b/tools/perf/util/cache.h index 393d6146d13..161d5f413e2 100644 --- a/tools/perf/util/cache.h +++ b/tools/perf/util/cache.h @@ -3,6 +3,7 @@ #include "util.h" #include "strbuf.h" +#include "../perf.h" #define PERF_DIR_ENVIRONMENT "PERF_DIR" #define PERF_WORK_TREE_ENVIRONMENT "PERF_WORK_TREE" diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c index 440db12c635..3dceabd9b5e 100644 --- a/tools/perf/util/callchain.c +++ b/tools/perf/util/callchain.c @@ -92,7 +92,7 @@ static void fill_node(struct callchain_node *node, struct ip_callchain *chain, int start, struct symbol **syms) { - int i; + unsigned int i; for (i = start; i < chain->nr; i++) { struct callchain_list *call; @@ -135,7 +135,7 @@ split_add_child(struct callchain_node *parent, struct ip_callchain *chain, { struct callchain_node *new; struct list_head *old_tail; - int idx_total = idx_parents + idx_local; + unsigned int idx_total = idx_parents + idx_local; /* split */ new = create_child(parent, true); @@ -164,17 +164,18 @@ split_add_child(struct callchain_node *parent, struct ip_callchain *chain, static int __append_chain(struct callchain_node *root, struct ip_callchain *chain, - int start, struct symbol **syms); + unsigned int start, struct symbol **syms); static void __append_chain_children(struct callchain_node *root, struct ip_callchain *chain, - struct symbol **syms, int start) + struct symbol **syms, unsigned int start) { struct callchain_node *rnode; /* lookup in childrens */ list_for_each_entry(rnode, &root->children, brothers) { - int ret = __append_chain(rnode, chain, start, syms); + unsigned int ret = __append_chain(rnode, chain, start, syms); + if (!ret) return; } @@ -184,10 +185,10 @@ __append_chain_children(struct callchain_node *root, struct ip_callchain *chain, static int __append_chain(struct callchain_node *root, struct ip_callchain *chain, - int start, struct symbol **syms) + unsigned int start, struct symbol **syms) { struct callchain_list *cnode; - int i = start; + unsigned int i = start; bool found = false; /* diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h index c942daa712e..251d99ecd22 100644 --- a/tools/perf/util/callchain.h +++ b/tools/perf/util/callchain.h @@ -10,15 +10,15 @@ struct callchain_node { struct callchain_node *parent; struct list_head brothers; - struct list_head children; - struct list_head val; + struct list_head children; + struct list_head val; struct rb_node rb_node; - int val_nr; - int hit; + unsigned int val_nr; + u64 hit; }; struct callchain_list { - unsigned long ip; + u64 ip; struct symbol *sym; struct list_head list; }; diff --git a/tools/perf/util/color.c b/tools/perf/util/color.c index 9a8c20ccc53..26f82318b86 100644 --- a/tools/perf/util/color.c +++ b/tools/perf/util/color.c @@ -11,7 +11,8 @@ static int parse_color(const char *name, int len) }; char *end; int i; - for (i = 0; i < ARRAY_SIZE(color_names); i++) { + + for (i = 0; i < (int)ARRAY_SIZE(color_names); i++) { const char *str = color_names[i]; if (!strncasecmp(name, str, len) && !str[len]) return i - 1; @@ -28,7 +29,8 @@ static int parse_attr(const char *name, int len) static const char * const attr_names[] = { "bold", "dim", "ul", "blink", "reverse" }; - int i; + unsigned int i; + for (i = 0; i < ARRAY_SIZE(attr_names); i++) { const char *str = attr_names[i]; if (!strncasecmp(name, str, len) && !str[len]) @@ -222,10 +224,12 @@ int color_fwrite_lines(FILE *fp, const char *color, { if (!*color) return fwrite(buf, count, 1, fp) != 1; + while (count) { char *p = memchr(buf, '\n', count); + if (p != buf && (fputs(color, fp) < 0 || - fwrite(buf, p ? p - buf : count, 1, fp) != 1 || + fwrite(buf, p ? (size_t)(p - buf) : count, 1, fp) != 1 || fputs(PERF_COLOR_RESET, fp) < 0)) return -1; if (!p) diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c index 3dd13faa6a2..780df541006 100644 --- a/tools/perf/util/config.c +++ b/tools/perf/util/config.c @@ -47,10 +47,12 @@ static int get_next_char(void) static char *parse_value(void) { static char value[1024]; - int quote = 0, comment = 0, len = 0, space = 0; + int quote = 0, comment = 0, space = 0; + size_t len = 0; for (;;) { int c = get_next_char(); + if (len >= sizeof(value) - 1) return NULL; if (c == '\n') { @@ -353,13 +355,13 @@ int perf_config_string(const char **dest, const char *var, const char *value) return 0; } -static int perf_default_core_config(const char *var, const char *value) +static int perf_default_core_config(const char *var __used, const char *value __used) { /* Add other config variables here and to Documentation/config.txt. */ return 0; } -int perf_default_config(const char *var, const char *value, void *dummy) +int perf_default_config(const char *var, const char *value, void *dummy __used) { if (!prefixcmp(var, "core.")) return perf_default_core_config(var, value); @@ -471,10 +473,10 @@ static int matches(const char* key, const char* value) !regexec(store.value_regex, value, 0, NULL, 0))); } -static int store_aux(const char* key, const char* value, void *cb) +static int store_aux(const char* key, const char* value, void *cb __used) { + int section_len; const char *ep; - size_t section_len; switch (store.state) { case KEY_SEEN: @@ -551,7 +553,7 @@ static int store_write_section(int fd, const char* key) strbuf_addf(&sb, "[%.*s]\n", store.baselen, key); } - success = write_in_full(fd, sb.buf, sb.len) == sb.len; + success = (write_in_full(fd, sb.buf, sb.len) == (ssize_t)sb.len); strbuf_release(&sb); return success; @@ -599,7 +601,7 @@ static int store_write_pair(int fd, const char* key, const char* value) } strbuf_addf(&sb, "%s\n", quote); - success = write_in_full(fd, sb.buf, sb.len) == sb.len; + success = (write_in_full(fd, sb.buf, sb.len) == (ssize_t)sb.len); strbuf_release(&sb); return success; @@ -741,7 +743,7 @@ int perf_config_set_multivar(const char* key, const char* value, } else { struct stat st; char* contents; - size_t contents_sz, copy_begin, copy_end; + ssize_t contents_sz, copy_begin, copy_end; int i, new_line = 0; if (value_regex == NULL) diff --git a/tools/perf/util/exec_cmd.c b/tools/perf/util/exec_cmd.c index d3929226315..34a35286738 100644 --- a/tools/perf/util/exec_cmd.c +++ b/tools/perf/util/exec_cmd.c @@ -1,6 +1,9 @@ #include "cache.h" #include "exec_cmd.h" #include "quote.h" + +#include + #define MAX_ARGS 32 extern char **environ; @@ -51,7 +54,7 @@ const char *perf_extract_argv0_path(const char *argv0) slash--; if (slash >= argv0) { - argv0_path = strndup(argv0, slash - argv0); + argv0_path = xstrndup(argv0, slash - argv0); return slash + 1; } diff --git a/tools/perf/util/help.c b/tools/perf/util/help.c index 17a00e0df2c..fbb00978b2e 100644 --- a/tools/perf/util/help.c +++ b/tools/perf/util/help.c @@ -26,7 +26,7 @@ static int term_columns(void) return 80; } -void add_cmdname(struct cmdnames *cmds, const char *name, int len) +void add_cmdname(struct cmdnames *cmds, const char *name, size_t len) { struct cmdname *ent = malloc(sizeof(*ent) + len + 1); @@ -40,7 +40,8 @@ void add_cmdname(struct cmdnames *cmds, const char *name, int len) static void clean_cmdnames(struct cmdnames *cmds) { - int i; + unsigned int i; + for (i = 0; i < cmds->cnt; ++i) free(cmds->names[i]); free(cmds->names); @@ -57,7 +58,7 @@ static int cmdname_compare(const void *a_, const void *b_) static void uniq(struct cmdnames *cmds) { - int i, j; + unsigned int i, j; if (!cmds->cnt) return; @@ -71,7 +72,7 @@ static void uniq(struct cmdnames *cmds) void exclude_cmds(struct cmdnames *cmds, struct cmdnames *excludes) { - int ci, cj, ei; + size_t ci, cj, ei; int cmp; ci = cj = ei = 0; @@ -106,8 +107,9 @@ static void pretty_print_string_list(struct cmdnames *cmds, int longest) printf(" "); for (j = 0; j < cols; j++) { - int n = j * rows + i; - int size = space; + unsigned int n = j * rows + i; + unsigned int size = space; + if (n >= cmds->cnt) break; if (j == cols-1 || n + rows >= cmds->cnt) @@ -208,7 +210,7 @@ void load_command_list(const char *prefix, void list_commands(const char *title, struct cmdnames *main_cmds, struct cmdnames *other_cmds) { - int i, longest = 0; + unsigned int i, longest = 0; for (i = 0; i < main_cmds->cnt; i++) if (longest < main_cmds->names[i]->len) @@ -239,7 +241,8 @@ void list_commands(const char *title, struct cmdnames *main_cmds, int is_in_cmdlist(struct cmdnames *c, const char *s) { - int i; + unsigned int i; + for (i = 0; i < c->cnt; i++) if (!strcmp(s, c->names[i]->name)) return 1; @@ -271,7 +274,8 @@ static int levenshtein_compare(const void *p1, const void *p2) static void add_cmd_list(struct cmdnames *cmds, struct cmdnames *old) { - int i; + unsigned int i; + ALLOC_GROW(cmds->names, cmds->cnt + old->cnt, cmds->alloc); for (i = 0; i < old->cnt; i++) @@ -283,7 +287,7 @@ static void add_cmd_list(struct cmdnames *cmds, struct cmdnames *old) const char *help_unknown_cmd(const char *cmd) { - int i, n = 0, best_similarity = 0; + unsigned int i, n = 0, best_similarity = 0; struct cmdnames main_cmds, other_cmds; memset(&main_cmds, 0, sizeof(main_cmds)); @@ -345,7 +349,7 @@ const char *help_unknown_cmd(const char *cmd) exit(1); } -int cmd_version(int argc, const char **argv, const char *prefix) +int cmd_version(int argc __used, const char **argv __used, const char *prefix __used) { printf("perf version %s\n", perf_version_string); return 0; diff --git a/tools/perf/util/help.h b/tools/perf/util/help.h index 56bc15406ff..7128783637b 100644 --- a/tools/perf/util/help.h +++ b/tools/perf/util/help.h @@ -2,8 +2,8 @@ #define HELP_H struct cmdnames { - int alloc; - int cnt; + size_t alloc; + size_t cnt; struct cmdname { size_t len; /* also used for similarity index in help.c */ char name[FLEX_ARRAY]; @@ -19,7 +19,7 @@ static inline void mput_char(char c, unsigned int num) void load_command_list(const char *prefix, struct cmdnames *main_cmds, struct cmdnames *other_cmds); -void add_cmdname(struct cmdnames *cmds, const char *name, int len); +void add_cmdname(struct cmdnames *cmds, const char *name, size_t len); /* Here we require that excludes is a sorted list. */ void exclude_cmds(struct cmdnames *cmds, struct cmdnames *excludes); int is_in_cmdlist(struct cmdnames *c, const char *s); diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index e6b83a3311a..aed70901df2 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -385,7 +385,7 @@ static int parse_event_symbols(const char **str, struct perf_counter_attr *attr) return 1; } -int parse_events(const struct option *opt, const char *str, int unset) +int parse_events(const struct option *opt __used, const char *str, int unset __used) { struct perf_counter_attr attr; diff --git a/tools/perf/util/parse-options.c b/tools/perf/util/parse-options.c index b3affb1658d..9a897b7cce7 100644 --- a/tools/perf/util/parse-options.c +++ b/tools/perf/util/parse-options.c @@ -485,7 +485,7 @@ int parse_options_usage(const char * const *usagestr, } -int parse_opt_verbosity_cb(const struct option *opt, const char *arg, +int parse_opt_verbosity_cb(const struct option *opt, const char *arg __used, int unset) { int *target = opt->value; diff --git a/tools/perf/util/parse-options.h b/tools/perf/util/parse-options.h index a1039a6ce0e..15c8aba9c62 100644 --- a/tools/perf/util/parse-options.h +++ b/tools/perf/util/parse-options.h @@ -90,21 +90,20 @@ struct option { intptr_t defval; }; -#define OPT_END() { OPTION_END } -#define OPT_ARGUMENT(l, h) { OPTION_ARGUMENT, 0, (l), NULL, NULL, (h) } -#define OPT_GROUP(h) { OPTION_GROUP, 0, NULL, NULL, NULL, (h) } -#define OPT_BIT(s, l, v, h, b) { OPTION_BIT, (s), (l), (v), NULL, (h), 0, NULL, (b) } -#define OPT_BOOLEAN(s, l, v, h) { OPTION_BOOLEAN, (s), (l), (v), NULL, (h) } -#define OPT_SET_INT(s, l, v, h, i) { OPTION_SET_INT, (s), (l), (v), NULL, (h), 0, NULL, (i) } -#define OPT_SET_PTR(s, l, v, h, p) { OPTION_SET_PTR, (s), (l), (v), NULL, (h), 0, NULL, (p) } -#define OPT_INTEGER(s, l, v, h) { OPTION_INTEGER, (s), (l), (v), NULL, (h) } -#define OPT_LONG(s, l, v, h) { OPTION_LONG, (s), (l), (v), NULL, (h) } -#define OPT_STRING(s, l, v, a, h) { OPTION_STRING, (s), (l), (v), (a), (h) } +#define OPT_END() { .type = OPTION_END } +#define OPT_ARGUMENT(l, h) { .type = OPTION_ARGUMENT, .long_name = (l), .help = (h) } +#define OPT_GROUP(h) { .type = OPTION_GROUP, .help = (h) } +#define OPT_BIT(s, l, v, h, b) { .type = OPTION_BIT, .short_name = (s), .long_name = (l), .value = (v), .help = (h), .defval = (b) } +#define OPT_BOOLEAN(s, l, v, h) { .type = OPTION_BOOLEAN, .short_name = (s), .long_name = (l), .value = (v), .help = (h) } +#define OPT_SET_INT(s, l, v, h, i) { .type = OPTION_SET_INT, .short_name = (s), .long_name = (l), .value = (v), .help = (h), .defval = (i) } +#define OPT_SET_PTR(s, l, v, h, p) { .type = OPTION_SET_PTR, .short_name = (s), .long_name = (l), .value = (v), .help = (h), .defval = (p) } +#define OPT_INTEGER(s, l, v, h) { .type = OPTION_INTEGER, .short_name = (s), .long_name = (l), .value = (v), .help = (h) } +#define OPT_LONG(s, l, v, h) { .type = OPTION_LONG, .short_name = (s), .long_name = (l), .value = (v), .help = (h) } +#define OPT_STRING(s, l, v, a, h) { .type = OPTION_STRING, .short_name = (s), .long_name = (l), .value = (v), (a), .help = (h) } #define OPT_DATE(s, l, v, h) \ - { OPTION_CALLBACK, (s), (l), (v), "time",(h), 0, \ - parse_opt_approxidate_cb } + { .type = OPTION_CALLBACK, .short_name = (s), .long_name = (l), .value = (v), .argh = "time", .help = (h), .callback = parse_opt_approxidate_cb } #define OPT_CALLBACK(s, l, v, a, h, f) \ - { OPTION_CALLBACK, (s), (l), (v), (a), (h), 0, (f) } + { .type = OPTION_CALLBACK, .short_name = (s), .long_name = (l), .value = (v), (a), .help = (h), .callback = (f) } /* parse_options() will filter out the processed options and leave the * non-option argments in argv[]. diff --git a/tools/perf/util/quote.c b/tools/perf/util/quote.c index f18c5212bc9..c6e5dc0dc82 100644 --- a/tools/perf/util/quote.c +++ b/tools/perf/util/quote.c @@ -162,12 +162,16 @@ static inline int sq_must_quote(char c) return sq_lookup[(unsigned char)c] + quote_path_fully > 0; } -/* returns the longest prefix not needing a quote up to maxlen if positive. - This stops at the first \0 because it's marked as a character needing an - escape */ -static size_t next_quote_pos(const char *s, ssize_t maxlen) +/* + * Returns the longest prefix not needing a quote up to maxlen if + * positive. + * This stops at the first \0 because it's marked as a character + * needing an escape. + */ +static ssize_t next_quote_pos(const char *s, ssize_t maxlen) { - size_t len; + ssize_t len; + if (maxlen < 0) { for (len = 0; !sq_must_quote(s[len]); len++); } else { @@ -192,22 +196,22 @@ static size_t next_quote_pos(const char *s, ssize_t maxlen) static size_t quote_c_style_counted(const char *name, ssize_t maxlen, struct strbuf *sb, FILE *fp, int no_dq) { -#undef EMIT -#define EMIT(c) \ - do { \ - if (sb) strbuf_addch(sb, (c)); \ - if (fp) fputc((c), fp); \ - count++; \ +#define EMIT(c) \ + do { \ + if (sb) strbuf_addch(sb, (c)); \ + if (fp) fputc((c), fp); \ + count++; \ } while (0) -#define EMITBUF(s, l) \ - do { \ - int __ret; \ - if (sb) strbuf_add(sb, (s), (l)); \ - if (fp) __ret = fwrite((s), (l), 1, fp); \ - count += (l); \ + +#define EMITBUF(s, l) \ + do { \ + int __ret; \ + if (sb) strbuf_add(sb, (s), (l)); \ + if (fp) __ret = fwrite((s), (l), 1, fp); \ + count += (l); \ } while (0) - size_t len, count = 0; + ssize_t len, count = 0; const char *p = name; for (;;) { @@ -273,8 +277,8 @@ void write_name_quoted(const char *name, FILE *fp, int terminator) fputc(terminator, fp); } -extern void write_name_quotedpfx(const char *pfx, size_t pfxlen, - const char *name, FILE *fp, int terminator) +void write_name_quotedpfx(const char *pfx, ssize_t pfxlen, + const char *name, FILE *fp, int terminator) { int needquote = 0; @@ -306,7 +310,7 @@ char *quote_path_relative(const char *in, int len, len = strlen(in); /* "../" prefix itself does not need quoting, but "in" might. */ - needquote = next_quote_pos(in, len) < len; + needquote = (next_quote_pos(in, len) < len); strbuf_setlen(out, 0); strbuf_grow(out, len); diff --git a/tools/perf/util/quote.h b/tools/perf/util/quote.h index 5dfad89816d..a5454a1d1c1 100644 --- a/tools/perf/util/quote.h +++ b/tools/perf/util/quote.h @@ -53,7 +53,7 @@ extern size_t quote_c_style(const char *name, struct strbuf *, FILE *, int no_dq extern void quote_two_c_style(struct strbuf *, const char *, const char *, int); extern void write_name_quoted(const char *name, FILE *, int terminator); -extern void write_name_quotedpfx(const char *pfx, size_t pfxlen, +extern void write_name_quotedpfx(const char *pfx, ssize_t pfxlen, const char *name, FILE *, int terminator); /* quote path as relative to the given prefix */ diff --git a/tools/perf/util/strbuf.c b/tools/perf/util/strbuf.c index 464e7ca898c..5249d5a1b0c 100644 --- a/tools/perf/util/strbuf.c +++ b/tools/perf/util/strbuf.c @@ -16,7 +16,7 @@ int prefixcmp(const char *str, const char *prefix) */ char strbuf_slopbuf[1]; -void strbuf_init(struct strbuf *sb, size_t hint) +void strbuf_init(struct strbuf *sb, ssize_t hint) { sb->alloc = sb->len = 0; sb->buf = strbuf_slopbuf; @@ -92,7 +92,8 @@ void strbuf_ltrim(struct strbuf *sb) void strbuf_tolower(struct strbuf *sb) { - int i; + unsigned int i; + for (i = 0; i < sb->len; i++) sb->buf[i] = tolower(sb->buf[i]); } @@ -264,7 +265,7 @@ size_t strbuf_fread(struct strbuf *sb, size_t size, FILE *f) return res; } -ssize_t strbuf_read(struct strbuf *sb, int fd, size_t hint) +ssize_t strbuf_read(struct strbuf *sb, int fd, ssize_t hint) { size_t oldlen = sb->len; size_t oldalloc = sb->alloc; @@ -293,7 +294,7 @@ ssize_t strbuf_read(struct strbuf *sb, int fd, size_t hint) #define STRBUF_MAXLINK (2*PATH_MAX) -int strbuf_readlink(struct strbuf *sb, const char *path, size_t hint) +int strbuf_readlink(struct strbuf *sb, const char *path, ssize_t hint) { size_t oldalloc = sb->alloc; @@ -301,7 +302,7 @@ int strbuf_readlink(struct strbuf *sb, const char *path, size_t hint) hint = 32; while (hint < STRBUF_MAXLINK) { - int len; + ssize_t len; strbuf_grow(sb, hint); len = readlink(path, sb->buf, hint); @@ -343,7 +344,7 @@ int strbuf_getline(struct strbuf *sb, FILE *fp, int term) return 0; } -int strbuf_read_file(struct strbuf *sb, const char *path, size_t hint) +int strbuf_read_file(struct strbuf *sb, const char *path, ssize_t hint) { int fd, len; diff --git a/tools/perf/util/strbuf.h b/tools/perf/util/strbuf.h index 9ee908a3ec5..d2aa86c014c 100644 --- a/tools/perf/util/strbuf.h +++ b/tools/perf/util/strbuf.h @@ -50,7 +50,7 @@ struct strbuf { #define STRBUF_INIT { 0, 0, strbuf_slopbuf } /*----- strbuf life cycle -----*/ -extern void strbuf_init(struct strbuf *, size_t); +extern void strbuf_init(struct strbuf *buf, ssize_t hint); extern void strbuf_release(struct strbuf *); extern char *strbuf_detach(struct strbuf *, size_t *); extern void strbuf_attach(struct strbuf *, void *, size_t, size_t); @@ -61,7 +61,7 @@ static inline void strbuf_swap(struct strbuf *a, struct strbuf *b) { } /*----- strbuf size related -----*/ -static inline size_t strbuf_avail(const struct strbuf *sb) { +static inline ssize_t strbuf_avail(const struct strbuf *sb) { return sb->alloc ? sb->alloc - sb->len - 1 : 0; } @@ -122,9 +122,9 @@ extern void strbuf_addf(struct strbuf *sb, const char *fmt, ...); extern size_t strbuf_fread(struct strbuf *, size_t, FILE *); /* XXX: if read fails, any partial read is undone */ -extern ssize_t strbuf_read(struct strbuf *, int fd, size_t hint); -extern int strbuf_read_file(struct strbuf *sb, const char *path, size_t hint); -extern int strbuf_readlink(struct strbuf *sb, const char *path, size_t hint); +extern ssize_t strbuf_read(struct strbuf *, int fd, ssize_t hint); +extern int strbuf_read_file(struct strbuf *sb, const char *path, ssize_t hint); +extern int strbuf_readlink(struct strbuf *sb, const char *path, ssize_t hint); extern int strbuf_getline(struct strbuf *, FILE *, int); diff --git a/tools/perf/util/wrapper.c b/tools/perf/util/wrapper.c index 6350d65f6d9..4574ac28396 100644 --- a/tools/perf/util/wrapper.c +++ b/tools/perf/util/wrapper.c @@ -7,7 +7,7 @@ * There's no pack memory to release - but stay close to the Git * version so wrap this away: */ -static inline void release_pack_memory(size_t size, int flag) +static inline void release_pack_memory(size_t size __used, int flag __used) { } @@ -59,7 +59,8 @@ void *xmemdupz(const void *data, size_t len) char *xstrndup(const char *str, size_t len) { char *p = memchr(str, '\0', len); - return xmemdupz(str, p ? p - str : len); + + return xmemdupz(str, p ? (size_t)(p - str) : len); } void *xrealloc(void *ptr, size_t size) -- cgit v1.2.3 From b9ebdcc0ce1c676ebf5dc4f6df6b440d8fcf88ab Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Wed, 1 Jul 2009 15:05:09 +0530 Subject: perf stat: Define MATCH_EVENT for easy attr checking MATCH_EVENT is useful: 1. for multiple attrs checking 2. avoid repetition of PERF_TYPE_ and PERF_COUNT_ and save space 3. avoids line breakage Signed-off-by: Jaswinder Singh Rajput Cc: Peter Zijlstra LKML-Reference: <1246440909.3403.5.camel@hpdv5.satnam> Signed-off-by: Ingo Molnar --- tools/perf/builtin-stat.c | 27 ++++++++++----------------- 1 file changed, 10 insertions(+), 17 deletions(-) diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 095a90e012a..01cc07efb72 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -96,6 +96,10 @@ static u64 walltime_nsecs_noise; static u64 runtime_cycles_avg; static u64 runtime_cycles_noise; +#define MATCH_EVENT(t, c, counter) \ + (attrs[counter].type == PERF_TYPE_##t && \ + attrs[counter].config == PERF_COUNT_##c) + #define ERR_PERF_OPEN \ "Error: counter %d, sys_perf_counter_open() syscall returned with %d (%s)\n" @@ -133,13 +137,8 @@ static void create_perf_stat_counter(int counter, int pid) */ static inline int nsec_counter(int counter) { - if (attrs[counter].type != PERF_TYPE_SOFTWARE) - return 0; - - if (attrs[counter].config == PERF_COUNT_SW_CPU_CLOCK) - return 1; - - if (attrs[counter].config == PERF_COUNT_SW_TASK_CLOCK) + if (MATCH_EVENT(SOFTWARE, SW_CPU_CLOCK, counter) || + MATCH_EVENT(SOFTWARE, SW_TASK_CLOCK, counter)) return 1; return 0; @@ -194,11 +193,9 @@ static void read_counter(int counter) /* * Save the full runtime - to allow normalization during printout: */ - if (attrs[counter].type == PERF_TYPE_SOFTWARE && - attrs[counter].config == PERF_COUNT_SW_TASK_CLOCK) + if (MATCH_EVENT(SOFTWARE, SW_TASK_CLOCK, counter)) runtime_nsecs[run_idx] = count[0]; - if (attrs[counter].type == PERF_TYPE_HARDWARE && - attrs[counter].config == PERF_COUNT_HW_CPU_CYCLES) + if (MATCH_EVENT(HARDWARE, HW_CPU_CYCLES, counter)) runtime_cycles[run_idx] = count[0]; } @@ -292,9 +289,7 @@ static void nsec_printout(int counter, u64 *count, u64 *noise) fprintf(stderr, " %14.6f %-24s", msecs, event_name(counter)); - if (attrs[counter].type == PERF_TYPE_SOFTWARE && - attrs[counter].config == PERF_COUNT_SW_TASK_CLOCK) { - + if (MATCH_EVENT(SOFTWARE, SW_TASK_CLOCK, counter)) { if (walltime_nsecs_avg) fprintf(stderr, " # %10.3f CPUs ", (double)count[0] / (double)walltime_nsecs_avg); @@ -307,9 +302,7 @@ static void abs_printout(int counter, u64 *count, u64 *noise) fprintf(stderr, " %14Ld %-24s", count[0], event_name(counter)); if (runtime_cycles_avg && - attrs[counter].type == PERF_TYPE_HARDWARE && - attrs[counter].config == PERF_COUNT_HW_INSTRUCTIONS) { - + MATCH_EVENT(HARDWARE, HW_INSTRUCTIONS, counter)) { fprintf(stderr, " # %10.3f IPC ", (double)count[0] / (double)runtime_cycles_avg); } else { -- cgit v1.2.3 From 44973998a111dfda09b952aa0f27cad326a97793 Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Wed, 1 Jul 2009 17:49:38 +0530 Subject: x86: Remove double declaration of MSR_P6_EVNTSEL0 and MSR_P6_EVNTSEL1 MSR_P6_EVNTSEL0 and MSR_P6_EVNTSEL1 is already declared in msr-index.h. Signed-off-by: Jaswinder Singh Rajput LKML-Reference: <1246450778.6940.8.camel@hpdv5.satnam> Signed-off-by: Ingo Molnar --- arch/x86/include/asm/msr-index.h | 4 ---- 1 file changed, 4 deletions(-) diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h index 1692fb5050e..6be7fc254b5 100644 --- a/arch/x86/include/asm/msr-index.h +++ b/arch/x86/include/asm/msr-index.h @@ -246,10 +246,6 @@ #define MSR_IA32_MISC_ENABLE_TURBO_DISABLE (1ULL << 38) #define MSR_IA32_MISC_ENABLE_IP_PREF_DISABLE (1ULL << 39) -/* Intel Model 6 */ -#define MSR_P6_EVNTSEL0 0x00000186 -#define MSR_P6_EVNTSEL1 0x00000187 - /* P4/Xeon+ specific */ #define MSR_IA32_MCG_EAX 0x00000180 #define MSR_IA32_MCG_EBX 0x00000181 -- cgit v1.2.3 From 73c24cb86c51ff6445b292d9914d31236204393b Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Wed, 1 Jul 2009 18:36:18 +0530 Subject: perf list: Add cache events After: $ ./perf list List of pre-defined events (to be used in -e): cpu-cycles OR cycles [Hardware event] instructions [Hardware event] cache-references [Hardware event] cache-misses [Hardware event] branch-instructions OR branches [Hardware event] branch-misses [Hardware event] bus-cycles [Hardware event] cpu-clock [Software event] task-clock [Software event] page-faults OR faults [Software event] minor-faults [Software event] major-faults [Software event] context-switches OR cs [Software event] cpu-migrations OR migrations [Software event] L1-d$-loads [Hardware cache event] L1-d$-load-misses [Hardware cache event] L1-d$-stores [Hardware cache event] L1-d$-store-misses [Hardware cache event] L1-d$-prefetches [Hardware cache event] L1-d$-prefetch-misses [Hardware cache event] L1-i$-loads [Hardware cache event] L1-i$-load-misses [Hardware cache event] L1-i$-prefetches [Hardware cache event] L1-i$-prefetch-misses [Hardware cache event] LLC-loads [Hardware cache event] LLC-load-misses [Hardware cache event] LLC-stores [Hardware cache event] LLC-store-misses [Hardware cache event] LLC-prefetches [Hardware cache event] LLC-prefetch-misses [Hardware cache event] dTLB-loads [Hardware cache event] dTLB-load-misses [Hardware cache event] dTLB-stores [Hardware cache event] dTLB-store-misses [Hardware cache event] dTLB-prefetches [Hardware cache event] dTLB-prefetch-misses [Hardware cache event] iTLB-loads [Hardware cache event] iTLB-load-misses [Hardware cache event] branch-loads [Hardware cache event] branch-load-misses [Hardware cache event] rNNN [raw hardware event descriptor] Signed-off-by: Jaswinder Singh Rajput Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker LKML-Reference: <1246453578.3072.1.camel@ht.satnam> Signed-off-by: Ingo Molnar --- tools/perf/util/parse-events.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index aed70901df2..5184959e061 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -428,7 +428,7 @@ static const char * const event_type_descriptors[] = { void print_events(void) { struct event_symbol *syms = event_symbols; - unsigned int i, type, prev_type = -1; + unsigned int i, type, op, prev_type = -1; char name[40]; fprintf(stderr, "\n"); @@ -452,6 +452,21 @@ void print_events(void) prev_type = type; } + fprintf(stderr, "\n"); + for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) { + for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) { + /* skip invalid cache type */ + if (!is_cache_op_valid(type, op)) + continue; + + for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) { + fprintf(stderr, " %-40s [%s]\n", + event_cache_name(type, op, i), + event_type_descriptors[4]); + } + } + } + fprintf(stderr, "\n"); fprintf(stderr, " %-40s [raw hardware event descriptor]\n", "rNNN"); -- cgit v1.2.3 From b25ae679f613ed04aaf6ccbfdb9122fce668e4bb Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Wed, 1 Jul 2009 19:53:14 +0530 Subject: x86: Mark device_nb as static and fix NULL noise This sparse warning: arch/x86/kernel/amd_iommu.c:1195:23: warning: symbol 'device_nb' was not declared. Should it be static? triggers because device_nb is global but is only used in a single .c file. change device_nb to static to fix that - this also addresses the sparse warning. This sparse warning: arch/x86/kernel/amd_iommu.c:1766:10: warning: Using plain integer as NULL pointer triggers because plain integer 0 is used in place of a NULL pointer. change 0 to NULL to fix that - this also address the sparse warning. Signed-off-by: Jaswinder Singh Rajput Cc: Joerg Roedel LKML-Reference: <1246458194.6940.20.camel@hpdv5.satnam> Signed-off-by: Ingo Molnar --- arch/x86/kernel/amd_iommu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index 9372f0406ad..6c99f503780 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -1192,7 +1192,7 @@ out: return 0; } -struct notifier_block device_nb = { +static struct notifier_block device_nb = { .notifier_call = device_change_notifier, }; @@ -1763,7 +1763,7 @@ static void *alloc_coherent(struct device *dev, size_t size, flag |= __GFP_ZERO; virt_addr = (void *)__get_free_pages(flag, get_order(size)); if (!virt_addr) - return 0; + return NULL; paddr = virt_to_phys(virt_addr); -- cgit v1.2.3 From 76c06927f2a78143763dcff9b4c362d15eb29cc2 Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Wed, 1 Jul 2009 19:54:23 +0530 Subject: x86: Declare check_efer() before it gets used This sparse warning: arch/x86/mm/init.c:83:16: warning: symbol 'check_efer' was not declared. Should it be static? triggers because check_efer() is not decalared before using it. asm/proto.h includes the declaration of check_efer(), so including asm/proto.h to fix that - this also addresses the sparse warning. Signed-off-by: Jaswinder Singh Rajput Cc: Andrew Morton LKML-Reference: <1246458263.6940.22.camel@hpdv5.satnam> Signed-off-by: Ingo Molnar --- arch/x86/mm/init.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 47ce9a2ce5e..0607119cef9 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -12,6 +12,7 @@ #include #include #include +#include DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); -- cgit v1.2.3 From ff84847171508a3c76eb7e483204d1be7738729b Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 1 Jul 2009 18:08:01 +0200 Subject: ALSA: hda - Add quirk for HP 6930p Added a quirk model=laptop for HP 6930p (103c:30dc) with AD1984A codec. Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_analog.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c index 84cc49ca914..85e8618e849 100644 --- a/sound/pci/hda/patch_analog.c +++ b/sound/pci/hda/patch_analog.c @@ -3966,6 +3966,7 @@ static struct snd_pci_quirk ad1884a_cfg_tbl[] = { SND_PCI_QUIRK(0x103c, 0x3037, "HP 2230s", AD1884A_LAPTOP), SND_PCI_QUIRK(0x103c, 0x3056, "HP", AD1884A_MOBILE), SND_PCI_QUIRK_MASK(0x103c, 0xfff0, 0x3070, "HP", AD1884A_MOBILE), + SND_PCI_QUIRK_MASK(0x103c, 0xfff0, 0x30d0, "HP laptop", AD1884A_LAPTOP), SND_PCI_QUIRK_MASK(0x103c, 0xfff0, 0x30e0, "HP laptop", AD1884A_LAPTOP), SND_PCI_QUIRK_MASK(0x103c, 0xff00, 0x3600, "HP laptop", AD1884A_LAPTOP), SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X300", AD1884A_THINKPAD), -- cgit v1.2.3 From 57d81f6f393b245894ca0cd828f80ce7e3294f39 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Wed, 1 Jul 2009 09:43:53 +0200 Subject: kmemleak: Fix scheduling-while-atomic bug One of the kmemleak changes caused the following scheduling-while-holding-the-tasklist-lock regression on x86: BUG: sleeping function called from invalid context at mm/kmemleak.c:795 in_atomic(): 1, irqs_disabled(): 0, pid: 1737, name: kmemleak 2 locks held by kmemleak/1737: #0: (scan_mutex){......}, at: [] kmemleak_scan_thread+0x45/0x86 #1: (tasklist_lock){......}, at: [] kmemleak_scan+0x1a9/0x39c Pid: 1737, comm: kmemleak Not tainted 2.6.31-rc1-tip #59266 Call Trace: [] ? __debug_show_held_locks+0x1e/0x20 [] __might_sleep+0x10a/0x111 [] scan_yield+0x17/0x3b [] scan_block+0x39/0xd4 [] kmemleak_scan+0x1bb/0x39c [] ? kmemleak_scan_thread+0x0/0x86 [] kmemleak_scan_thread+0x4a/0x86 [] kthread+0x6e/0x73 [] ? kthread+0x0/0x73 [] kernel_thread_helper+0x7/0x10 kmemleak: 834 new suspected memory leaks (see /sys/kernel/debug/kmemleak) The bit causing it is highly dubious: static void scan_yield(void) { might_sleep(); if (time_is_before_eq_jiffies(next_scan_yield)) { schedule(); next_scan_yield = jiffies + jiffies_scan_yield; } } It called deep inside the codepath and in a conditional way, and that is what crapped up when one of the new scan_block() uses grew a tasklist_lock dependency. This minimal patch removes that yielding stuff and adds the proper cond_resched(). The background scanning thread could probably also be reniced to +10. Signed-off-by: Ingo Molnar Acked-by: Pekka Enberg Signed-off-by: Linus Torvalds --- mm/kmemleak.c | 31 +------------------------------ 1 file changed, 1 insertion(+), 30 deletions(-) diff --git a/mm/kmemleak.c b/mm/kmemleak.c index eeece2deace..e766e1da09d 100644 --- a/mm/kmemleak.c +++ b/mm/kmemleak.c @@ -105,7 +105,6 @@ #define MAX_TRACE 16 /* stack trace length */ #define REPORTS_NR 50 /* maximum number of reported leaks */ #define MSECS_MIN_AGE 5000 /* minimum object age for reporting */ -#define MSECS_SCAN_YIELD 10 /* CPU yielding period */ #define SECS_FIRST_SCAN 60 /* delay before the first scan */ #define SECS_SCAN_WAIT 600 /* subsequent auto scanning delay */ @@ -186,10 +185,7 @@ static atomic_t kmemleak_error = ATOMIC_INIT(0); static unsigned long min_addr = ULONG_MAX; static unsigned long max_addr; -/* used for yielding the CPU to other tasks during scanning */ -static unsigned long next_scan_yield; static struct task_struct *scan_thread; -static unsigned long jiffies_scan_yield; /* used to avoid reporting of recently allocated objects */ static unsigned long jiffies_min_age; static unsigned long jiffies_last_scan; @@ -785,21 +781,6 @@ void kmemleak_no_scan(const void *ptr) } EXPORT_SYMBOL(kmemleak_no_scan); -/* - * Yield the CPU so that other tasks get a chance to run. The yielding is - * rate-limited to avoid excessive number of calls to the schedule() function - * during memory scanning. - */ -static void scan_yield(void) -{ - might_sleep(); - - if (time_is_before_eq_jiffies(next_scan_yield)) { - schedule(); - next_scan_yield = jiffies + jiffies_scan_yield; - } -} - /* * Memory scanning is a long process and it needs to be interruptable. This * function checks whether such interrupt condition occured. @@ -840,15 +821,6 @@ static void scan_block(void *_start, void *_end, if (scan_should_stop()) break; - /* - * When scanning a memory block with a corresponding - * kmemleak_object, the CPU yielding is handled in the calling - * code since it holds the object->lock to avoid the block - * freeing. - */ - if (!scanned) - scan_yield(); - object = find_and_get_object(pointer, 1); if (!object) continue; @@ -1014,7 +986,7 @@ static void kmemleak_scan(void) */ object = list_entry(gray_list.next, typeof(*object), gray_list); while (&object->gray_list != &gray_list) { - scan_yield(); + cond_resched(); /* may add new objects to the list */ if (!scan_should_stop()) @@ -1385,7 +1357,6 @@ void __init kmemleak_init(void) int i; unsigned long flags; - jiffies_scan_yield = msecs_to_jiffies(MSECS_SCAN_YIELD); jiffies_min_age = msecs_to_jiffies(MSECS_MIN_AGE); jiffies_scan_wait = msecs_to_jiffies(SECS_SCAN_WAIT * 1000); -- cgit v1.2.3 From da9ff1f796e81976935407251815838bef9868d4 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 1 Jul 2009 18:23:26 +0100 Subject: ASoC: Only disable pxa2xx-i2s clocks if we enabled them The clock API can't cope with unbalanced enables and disables and we only enable in hw_params() but try to disable in shutdown. Signed-off-by: Mark Brown --- sound/soc/pxa/pxa2xx-i2s.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/sound/soc/pxa/pxa2xx-i2s.c b/sound/soc/pxa/pxa2xx-i2s.c index 4743e262895..6b8f655d1ad 100644 --- a/sound/soc/pxa/pxa2xx-i2s.c +++ b/sound/soc/pxa/pxa2xx-i2s.c @@ -167,6 +167,7 @@ static int pxa2xx_i2s_hw_params(struct snd_pcm_substream *substream, BUG_ON(IS_ERR(clk_i2s)); clk_enable(clk_i2s); + dai->private_data = dai; pxa_i2s_wait(); if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) @@ -255,7 +256,10 @@ static void pxa2xx_i2s_shutdown(struct snd_pcm_substream *substream, if ((SACR1 & (SACR1_DREC | SACR1_DRPL)) == (SACR1_DREC | SACR1_DRPL)) { SACR0 &= ~SACR0_ENB; pxa_i2s_wait(); - clk_disable(clk_i2s); + if (dai->private_data != NULL) { + clk_disable(clk_i2s); + dai->private_data = NULL; + } } } @@ -336,6 +340,7 @@ static int pxa2xx_i2s_probe(struct platform_device *dev) return PTR_ERR(clk_i2s); pxa_i2s_dai.dev = &dev->dev; + pxa_i2s_dai.private_data = NULL; ret = snd_soc_register_dai(&pxa_i2s_dai); if (ret != 0) clk_put(clk_i2s); -- cgit v1.2.3 From 63eeaf38251183ec2b1caee11e4a2c040cb5ce6c Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Thu, 18 Jun 2009 16:56:52 -0700 Subject: drm/i915: enable error detection & state collection This patch enables error detection by enabling several types of error interrupts. When an error interrupt is received, the interrupt handler captures the error state; hopefully resulting in an accurate set of error data (error type, active head pointer, etc.). The new record is then available from sysfs. The current code will also dump the error state to the system log. Signed-off-by: Jesse Barnes Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_dma.c | 1 + drivers/gpu/drm/i915/i915_drv.h | 19 +++++ drivers/gpu/drm/i915/i915_gem_debugfs.c | 34 ++++++++ drivers/gpu/drm/i915/i915_irq.c | 139 +++++++++++++++++++++++++++++++- drivers/gpu/drm/i915/i915_reg.h | 14 ++++ 5 files changed, 204 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index f112c769d53..f83364974a8 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1180,6 +1180,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) pci_enable_msi(dev->pdev); spin_lock_init(&dev_priv->user_irq_lock); + spin_lock_init(&dev_priv->error_lock); dev_priv->user_irq_refcount = 0; ret = drm_vblank_init(dev, I915_NUM_PIPE); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index bb4c2d387b6..596e119d3e0 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -133,6 +133,22 @@ struct sdvo_device_mapping { u8 initialized; }; +struct drm_i915_error_state { + u32 eir; + u32 pgtbl_er; + u32 pipeastat; + u32 pipebstat; + u32 ipeir; + u32 ipehr; + u32 instdone; + u32 acthd; + u32 instpm; + u32 instps; + u32 instdone1; + u32 seqno; + struct timeval time; +}; + typedef struct drm_i915_private { struct drm_device *dev; @@ -209,6 +225,9 @@ typedef struct drm_i915_private { int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */ int num_fence_regs; /* 8 on pre-965, 16 otherwise */ + spinlock_t error_lock; + struct drm_i915_error_state *first_error; + /* Register state */ u8 saveLBB; u32 saveDSPACNTR; diff --git a/drivers/gpu/drm/i915/i915_gem_debugfs.c b/drivers/gpu/drm/i915/i915_gem_debugfs.c index 28146e405e8..cacae945338 100644 --- a/drivers/gpu/drm/i915/i915_gem_debugfs.c +++ b/drivers/gpu/drm/i915/i915_gem_debugfs.c @@ -323,6 +323,39 @@ static int i915_ringbuffer_info(struct seq_file *m, void *data) return 0; } +static int i915_error_state(struct seq_file *m, void *unused) +{ + struct drm_info_node *node = (struct drm_info_node *) m->private; + struct drm_device *dev = node->minor->dev; + drm_i915_private_t *dev_priv = dev->dev_private; + struct drm_i915_error_state *error; + unsigned long flags; + + spin_lock_irqsave(&dev_priv->error_lock, flags); + if (!dev_priv->first_error) { + seq_printf(m, "no error state collected\n"); + goto out; + } + + error = dev_priv->first_error; + + seq_printf(m, "EIR: 0x%08x\n", error->eir); + seq_printf(m, " PGTBL_ER: 0x%08x\n", error->pgtbl_er); + seq_printf(m, " INSTPM: 0x%08x\n", error->instpm); + seq_printf(m, " IPEIR: 0x%08x\n", error->ipeir); + seq_printf(m, " IPEHR: 0x%08x\n", error->ipehr); + seq_printf(m, " INSTDONE: 0x%08x\n", error->instdone); + seq_printf(m, " ACTHD: 0x%08x\n", error->acthd); + if (IS_I965G(dev)) { + seq_printf(m, " INSTPS: 0x%08x\n", error->instps); + seq_printf(m, " INSTDONE1: 0x%08x\n", error->instdone1); + } + +out: + spin_unlock_irqrestore(&dev_priv->error_lock, flags); + + return 0; +} static struct drm_info_list i915_gem_debugfs_list[] = { {"i915_gem_active", i915_gem_object_list_info, 0, (void *) ACTIVE_LIST}, @@ -336,6 +369,7 @@ static struct drm_info_list i915_gem_debugfs_list[] = { {"i915_ringbuffer_data", i915_ringbuffer_data, 0}, {"i915_ringbuffer_info", i915_ringbuffer_info, 0}, {"i915_batchbuffers", i915_batchbuffer_info, 0}, + {"i915_error_state", i915_error_state, 0}, }; #define I915_GEM_DEBUGFS_ENTRIES ARRAY_SIZE(i915_gem_debugfs_list) diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 228546f6eaa..17b308592c4 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -26,6 +26,7 @@ * */ +#include #include "drmP.h" #include "drm.h" #include "i915_drm.h" @@ -41,9 +42,10 @@ * we leave them always unmasked in IMR and then control enabling them through * PIPESTAT alone. */ -#define I915_INTERRUPT_ENABLE_FIX (I915_ASLE_INTERRUPT | \ - I915_DISPLAY_PIPE_A_EVENT_INTERRUPT | \ - I915_DISPLAY_PIPE_B_EVENT_INTERRUPT) +#define I915_INTERRUPT_ENABLE_FIX (I915_ASLE_INTERRUPT | \ + I915_DISPLAY_PIPE_A_EVENT_INTERRUPT | \ + I915_DISPLAY_PIPE_B_EVENT_INTERRUPT | \ + I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT) /** Interrupts that we mask and unmask at runtime. */ #define I915_INTERRUPT_ENABLE_VAR (I915_USER_INTERRUPT) @@ -288,6 +290,47 @@ irqreturn_t igdng_irq_handler(struct drm_device *dev) return ret; } +static void i915_capture_error_state(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_i915_error_state *error; + unsigned long flags; + + spin_lock_irqsave(&dev_priv->error_lock, flags); + if (dev_priv->first_error) + goto out; + + error = kmalloc(sizeof(*error), GFP_ATOMIC); + if (!error) { + DRM_DEBUG("out ot memory, not capturing error state\n"); + goto out; + } + + error->eir = I915_READ(EIR); + error->pgtbl_er = I915_READ(PGTBL_ER); + error->pipeastat = I915_READ(PIPEASTAT); + error->pipebstat = I915_READ(PIPEBSTAT); + error->instpm = I915_READ(INSTPM); + if (!IS_I965G(dev)) { + error->ipeir = I915_READ(IPEIR); + error->ipehr = I915_READ(IPEHR); + error->instdone = I915_READ(INSTDONE); + error->acthd = I915_READ(ACTHD); + } else { + error->ipeir = I915_READ(IPEIR_I965); + error->ipehr = I915_READ(IPEHR_I965); + error->instdone = I915_READ(INSTDONE_I965); + error->instps = I915_READ(INSTPS); + error->instdone1 = I915_READ(INSTDONE1); + error->acthd = I915_READ(ACTHD_I965); + } + + dev_priv->first_error = error; + +out: + spin_unlock_irqrestore(&dev_priv->error_lock, flags); +} + irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS) { struct drm_device *dev = (struct drm_device *) arg; @@ -362,6 +405,80 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS) I915_READ(PORT_HOTPLUG_STAT); } + if (iir & I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT) { + u32 eir = I915_READ(EIR); + + i915_capture_error_state(dev); + + printk(KERN_ERR "render error detected, EIR: 0x%08x\n", + eir); + if (eir & I915_ERROR_PAGE_TABLE) { + u32 pgtbl_err = I915_READ(PGTBL_ER); + printk(KERN_ERR "page table error\n"); + printk(KERN_ERR " PGTBL_ER: 0x%08x\n", + pgtbl_err); + I915_WRITE(PGTBL_ER, pgtbl_err); + (void)I915_READ(PGTBL_ER); + } + if (eir & I915_ERROR_MEMORY_REFRESH) { + printk(KERN_ERR "memory refresh error\n"); + printk(KERN_ERR "PIPEASTAT: 0x%08x\n", + pipea_stats); + printk(KERN_ERR "PIPEBSTAT: 0x%08x\n", + pipeb_stats); + /* pipestat has already been acked */ + } + if (eir & I915_ERROR_INSTRUCTION) { + printk(KERN_ERR "instruction error\n"); + printk(KERN_ERR " INSTPM: 0x%08x\n", + I915_READ(INSTPM)); + if (!IS_I965G(dev)) { + u32 ipeir = I915_READ(IPEIR); + + printk(KERN_ERR " IPEIR: 0x%08x\n", + I915_READ(IPEIR)); + printk(KERN_ERR " IPEHR: 0x%08x\n", + I915_READ(IPEHR)); + printk(KERN_ERR " INSTDONE: 0x%08x\n", + I915_READ(INSTDONE)); + printk(KERN_ERR " ACTHD: 0x%08x\n", + I915_READ(ACTHD)); + I915_WRITE(IPEIR, ipeir); + (void)I915_READ(IPEIR); + } else { + u32 ipeir = I915_READ(IPEIR_I965); + + printk(KERN_ERR " IPEIR: 0x%08x\n", + I915_READ(IPEIR_I965)); + printk(KERN_ERR " IPEHR: 0x%08x\n", + I915_READ(IPEHR_I965)); + printk(KERN_ERR " INSTDONE: 0x%08x\n", + I915_READ(INSTDONE_I965)); + printk(KERN_ERR " INSTPS: 0x%08x\n", + I915_READ(INSTPS)); + printk(KERN_ERR " INSTDONE1: 0x%08x\n", + I915_READ(INSTDONE1)); + printk(KERN_ERR " ACTHD: 0x%08x\n", + I915_READ(ACTHD_I965)); + I915_WRITE(IPEIR_I965, ipeir); + (void)I915_READ(IPEIR_I965); + } + } + + I915_WRITE(EIR, eir); + (void)I915_READ(EIR); + eir = I915_READ(EIR); + if (eir) { + /* + * some errors might have become stuck, + * mask them. + */ + DRM_ERROR("EIR stuck: 0x%08x, masking\n", eir); + I915_WRITE(EMR, I915_READ(EMR) | eir); + I915_WRITE(IIR, I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT); + } + } + I915_WRITE(IIR, iir); new_iir = I915_READ(IIR); /* Flush posted writes */ @@ -732,6 +849,7 @@ int i915_driver_irq_postinstall(struct drm_device *dev) { drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; u32 enable_mask = I915_INTERRUPT_ENABLE_FIX | I915_INTERRUPT_ENABLE_VAR; + u32 error_mask; DRM_INIT_WAITQUEUE(&dev_priv->irq_queue); @@ -768,6 +886,21 @@ int i915_driver_irq_postinstall(struct drm_device *dev) i915_enable_irq(dev_priv, I915_DISPLAY_PORT_INTERRUPT); } + /* + * Enable some error detection, note the instruction error mask + * bit is reserved, so we leave it masked. + */ + if (IS_G4X(dev)) { + error_mask = ~(GM45_ERROR_PAGE_TABLE | + GM45_ERROR_MEM_PRIV | + GM45_ERROR_CP_PRIV | + I915_ERROR_MEMORY_REFRESH); + } else { + error_mask = ~(I915_ERROR_PAGE_TABLE | + I915_ERROR_MEMORY_REFRESH); + } + I915_WRITE(EMR, error_mask); + /* Disable pipe interrupt enables, clear pending pipe status */ I915_WRITE(PIPEASTAT, I915_READ(PIPEASTAT) & 0x8000ffff); I915_WRITE(PIPEBSTAT, I915_READ(PIPEBSTAT) & 0x8000ffff); diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 88bf7521405..ad3d1b5db95 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -206,6 +206,7 @@ /* * Instruction and interrupt control regs */ +#define PGTBL_ER 0x02024 #define PRB0_TAIL 0x02030 #define PRB0_HEAD 0x02034 #define PRB0_START 0x02038 @@ -226,11 +227,18 @@ #define PRB1_HEAD 0x02044 /* 915+ only */ #define PRB1_START 0x02048 /* 915+ only */ #define PRB1_CTL 0x0204c /* 915+ only */ +#define IPEIR_I965 0x02064 +#define IPEHR_I965 0x02068 +#define INSTDONE_I965 0x0206c +#define INSTPS 0x02070 /* 965+ only */ +#define INSTDONE1 0x0207c /* 965+ only */ #define ACTHD_I965 0x02074 #define HWS_PGA 0x02080 #define HWS_ADDRESS_MASK 0xfffff000 #define HWS_START_ADDRESS_SHIFT 4 #define IPEIR 0x02088 +#define IPEHR 0x0208c +#define INSTDONE 0x02090 #define NOPID 0x02094 #define HWSTAM 0x02098 #define SCPD0 0x0209c /* 915+ only */ @@ -258,6 +266,12 @@ #define EIR 0x020b0 #define EMR 0x020b4 #define ESR 0x020b8 +#define GM45_ERROR_PAGE_TABLE (1<<5) +#define GM45_ERROR_MEM_PRIV (1<<4) +#define I915_ERROR_PAGE_TABLE (1<<4) +#define GM45_ERROR_CP_PRIV (1<<3) +#define I915_ERROR_MEMORY_REFRESH (1<<1) +#define I915_ERROR_INSTRUCTION (1<<0) #define INSTPM 0x020c0 #define ACTHD 0x020c8 #define FW_BLC 0x020d8 -- cgit v1.2.3 From 3238c0c4d68d9a9022b411a11a4b933fbdb53a14 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Wed, 1 Jul 2009 18:56:16 +0100 Subject: intel-iommu: Make iommu=pt work on i386 too Signed-off-by: David Woodhouse --- arch/x86/kernel/pci-dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index 47630479b06..1a041bcf506 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c @@ -211,11 +211,11 @@ static __init int iommu_setup(char *p) #ifdef CONFIG_SWIOTLB if (!strncmp(p, "soft", 4)) swiotlb = 1; +#endif if (!strncmp(p, "pt", 2)) { iommu_pass_through = 1; return 1; } -#endif gart_parse_options(p); -- cgit v1.2.3 From e2dbe12557d85d81f4527879499f55681c3cca4f Mon Sep 17 00:00:00 2001 From: Amerigo Wang Date: Wed, 1 Jul 2009 01:06:26 -0400 Subject: elf: fix one check-after-use Check before use it. Signed-off-by: WANG Cong Cc: Alexander Viro Cc: David Howells Acked-by: Roland McGrath Acked-by: James Morris Signed-off-by: Linus Torvalds --- fs/binfmt_elf.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c index f1867900e45..b7c1603cd4b 100644 --- a/fs/binfmt_elf.c +++ b/fs/binfmt_elf.c @@ -1522,11 +1522,11 @@ static int fill_note_info(struct elfhdr *elf, int phdrs, info->thread = NULL; psinfo = kmalloc(sizeof(*psinfo), GFP_KERNEL); - fill_note(&info->psinfo, "CORE", NT_PRPSINFO, sizeof(*psinfo), psinfo); - if (psinfo == NULL) return 0; + fill_note(&info->psinfo, "CORE", NT_PRPSINFO, sizeof(*psinfo), psinfo); + /* * Figure out how many notes we're going to need for each thread. */ -- cgit v1.2.3 From 7662c8bd6545c12ac7b2b39e4554c3ba34789c50 Mon Sep 17 00:00:00 2001 From: Shaohua Li Date: Fri, 26 Jun 2009 11:23:55 +0800 Subject: drm/i915: add FIFO watermark support This patch from jbarnes and myself adds FIFO watermark control to the driver. This is needed for both power saving features on new platforms with the so-called "big FIFO" and for controlling FIFO allocation between pipes in multi-head configurations. It's also necessary infrastructure to support things like framebuffer compression and configuration supportability checks (i.e. checking a configuration against available bandwidth). Signed-off-by: Jesse Barnes Signed-off-by: Shaohua Li Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_dma.c | 40 ++++ drivers/gpu/drm/i915/i915_drv.h | 4 + drivers/gpu/drm/i915/i915_irq.c | 4 + drivers/gpu/drm/i915/i915_reg.h | 46 +++- drivers/gpu/drm/i915/intel_display.c | 425 ++++++++++++++++++++++++++++++++++- 5 files changed, 513 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index f83364974a8..6096600aff6 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1082,6 +1082,44 @@ void i915_master_destroy(struct drm_device *dev, struct drm_master *master) master->driver_priv = NULL; } +static void i915_get_mem_freq(struct drm_device *dev) +{ + drm_i915_private_t *dev_priv = dev->dev_private; + u32 tmp; + + if (!IS_IGD(dev)) + return; + + tmp = I915_READ(CLKCFG); + + switch (tmp & CLKCFG_FSB_MASK) { + case CLKCFG_FSB_533: + dev_priv->fsb_freq = 533; /* 133*4 */ + break; + case CLKCFG_FSB_800: + dev_priv->fsb_freq = 800; /* 200*4 */ + break; + case CLKCFG_FSB_667: + dev_priv->fsb_freq = 667; /* 167*4 */ + break; + case CLKCFG_FSB_400: + dev_priv->fsb_freq = 400; /* 100*4 */ + break; + } + + switch (tmp & CLKCFG_MEM_MASK) { + case CLKCFG_MEM_533: + dev_priv->mem_freq = 533; + break; + case CLKCFG_MEM_667: + dev_priv->mem_freq = 667; + break; + case CLKCFG_MEM_800: + dev_priv->mem_freq = 800; + break; + } +} + /** * i915_driver_load - setup chip and create an initial config * @dev: DRM device @@ -1165,6 +1203,8 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) goto out_iomapfree; } + i915_get_mem_freq(dev); + /* On the 945G/GM, the chipset reports the MSI capability on the * integrated graphics even though the support isn't actually there * according to the published specs. It doesn't appear to function diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 596e119d3e0..47ecb617e51 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -225,6 +225,8 @@ typedef struct drm_i915_private { int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */ int num_fence_regs; /* 8 on pre-965, 16 otherwise */ + unsigned int fsb_freq, mem_freq; + spinlock_t error_lock; struct drm_i915_error_state *first_error; @@ -889,6 +891,8 @@ extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller); #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_IGDNG(dev)) #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_IGDNG(dev)) #define I915_HAS_HOTPLUG(dev) (IS_I945G(dev) || IS_I945GM(dev) || IS_I965G(dev)) +/* dsparb controlled by hw only */ +#define DSPARB_HWCONTROL(dev) (IS_G4X(dev)) #define PRIMARY_RINGBUFFER_SIZE (128*1024) diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 17b308592c4..7ba23a69a0c 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -376,11 +376,15 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS) * Clear the PIPE(A|B)STAT regs before the IIR */ if (pipea_stats & 0x8000ffff) { + if (pipea_stats & PIPE_FIFO_UNDERRUN_STATUS) + DRM_DEBUG("pipe a underrun\n"); I915_WRITE(PIPEASTAT, pipea_stats); irq_received = 1; } if (pipeb_stats & 0x8000ffff) { + if (pipeb_stats & PIPE_FIFO_UNDERRUN_STATUS) + DRM_DEBUG("pipe b underrun\n"); I915_WRITE(PIPEBSTAT, pipeb_stats); irq_received = 1; } diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index ad3d1b5db95..6c085848409 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -275,7 +275,13 @@ #define INSTPM 0x020c0 #define ACTHD 0x020c8 #define FW_BLC 0x020d8 +#define FW_BLC2 0x020dc #define FW_BLC_SELF 0x020e0 /* 915+ only */ +#define FW_BLC_SELF_EN (1<<15) +#define MM_BURST_LENGTH 0x00700000 +#define MM_FIFO_WATERMARK 0x0001F000 +#define LM_BURST_LENGTH 0x00000700 +#define LM_FIFO_WATERMARK 0x0000001F #define MI_ARB_STATE 0x020e4 /* 915+ only */ #define CACHE_MODE_0 0x02120 /* 915+ only */ #define CM0_MASK_SHIFT 16 @@ -585,17 +591,21 @@ /* Clocking configuration register */ #define CLKCFG 0x10c00 -#define CLKCFG_FSB_400 (0 << 0) /* hrawclk 100 */ +#define CLKCFG_FSB_400 (5 << 0) /* hrawclk 100 */ #define CLKCFG_FSB_533 (1 << 0) /* hrawclk 133 */ #define CLKCFG_FSB_667 (3 << 0) /* hrawclk 166 */ #define CLKCFG_FSB_800 (2 << 0) /* hrawclk 200 */ #define CLKCFG_FSB_1067 (6 << 0) /* hrawclk 266 */ #define CLKCFG_FSB_1333 (7 << 0) /* hrawclk 333 */ -/* this is a guess, could be 5 as well */ +/* Note, below two are guess */ #define CLKCFG_FSB_1600 (4 << 0) /* hrawclk 400 */ -#define CLKCFG_FSB_1600_ALT (5 << 0) /* hrawclk 400 */ +#define CLKCFG_FSB_1600_ALT (0 << 0) /* hrawclk 400 */ #define CLKCFG_FSB_MASK (7 << 0) - +#define CLKCFG_MEM_533 (1 << 4) +#define CLKCFG_MEM_667 (2 << 4) +#define CLKCFG_MEM_800 (3 << 4) +#define CLKCFG_MEM_MASK (7 << 4) + /** GM965 GM45 render standby register */ #define MCHBAR_RENDER_STANDBY 0x111B8 @@ -1595,6 +1605,34 @@ #define DSPARB_CSTART_SHIFT 7 #define DSPARB_BSTART_MASK (0x7f) #define DSPARB_BSTART_SHIFT 0 +#define DSPARB_BEND_SHIFT 9 /* on 855 */ +#define DSPARB_AEND_SHIFT 0 + +#define DSPFW1 0x70034 +#define DSPFW2 0x70038 +#define DSPFW3 0x7003c +#define IGD_SELF_REFRESH_EN (1<<30) + +/* FIFO watermark sizes etc */ +#define I915_FIFO_LINE_SIZE 64 +#define I830_FIFO_LINE_SIZE 32 +#define I945_FIFO_SIZE 127 /* 945 & 965 */ +#define I915_FIFO_SIZE 95 +#define I855GM_FIFO_SIZE 255 +#define I830_FIFO_SIZE 95 +#define I915_MAX_WM 0x3f + +#define IGD_DISPLAY_FIFO 512 /* in 64byte unit */ +#define IGD_FIFO_LINE_SIZE 64 +#define IGD_MAX_WM 0x1ff +#define IGD_DFT_WM 0x3f +#define IGD_DFT_HPLLOFF_WM 0 +#define IGD_GUARD_WM 10 +#define IGD_CURSOR_FIFO 64 +#define IGD_CURSOR_MAX_WM 0x3f +#define IGD_CURSOR_DFT_WM 0 +#define IGD_CURSOR_GUARD_WM 5 + /* * The two pipe frame counter registers are not synchronized, so * reading a stable value is somewhat tricky. The following code diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 73e7b9cecac..a84ac05ef04 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -25,6 +25,7 @@ */ #include +#include #include "drmP.h" #include "intel_drv.h" #include "i915_drm.h" @@ -34,6 +35,7 @@ #include "drm_crtc_helper.h" bool intel_pipe_has_type (struct drm_crtc *crtc, int type); +static void intel_update_watermarks(struct drm_device *dev); typedef struct { /* given values */ @@ -1005,7 +1007,7 @@ static void igdng_crtc_dpms(struct drm_crtc *crtc, int mode) struct drm_i915_private *dev_priv = dev->dev_private; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); int pipe = intel_crtc->pipe; - int plane = intel_crtc->pipe; + int plane = intel_crtc->plane; int pch_dpll_reg = (pipe == 0) ? PCH_DPLL_A : PCH_DPLL_B; int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF; int dspcntr_reg = (plane == 0) ? DSPACNTR : DSPBCNTR; @@ -1335,8 +1337,10 @@ static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode) /* Give the overlay scaler a chance to enable if it's on this pipe */ //intel_crtc_dpms_video(crtc, true); TODO + intel_update_watermarks(dev); break; case DRM_MODE_DPMS_OFF: + intel_update_watermarks(dev); /* Give the overlay scaler a chance to disable if it's on this pipe */ //intel_crtc_dpms_video(crtc, FALSE); TODO @@ -1515,7 +1519,6 @@ static int intel_get_core_clock_speed(struct drm_device *dev) return 0; /* Silence gcc warning */ } - /** * Return the pipe currently connected to the panel fitter, * or -1 if the panel fitter is not present or not in use @@ -1585,6 +1588,420 @@ igdng_compute_m_n(int bytes_per_pixel, int nlanes, } +struct intel_watermark_params { + unsigned long fifo_size; + unsigned long max_wm; + unsigned long default_wm; + unsigned long guard_size; + unsigned long cacheline_size; +}; + +/* IGD has different values for various configs */ +static struct intel_watermark_params igd_display_wm = { + IGD_DISPLAY_FIFO, + IGD_MAX_WM, + IGD_DFT_WM, + IGD_GUARD_WM, + IGD_FIFO_LINE_SIZE +}; +static struct intel_watermark_params igd_display_hplloff_wm = { + IGD_DISPLAY_FIFO, + IGD_MAX_WM, + IGD_DFT_HPLLOFF_WM, + IGD_GUARD_WM, + IGD_FIFO_LINE_SIZE +}; +static struct intel_watermark_params igd_cursor_wm = { + IGD_CURSOR_FIFO, + IGD_CURSOR_MAX_WM, + IGD_CURSOR_DFT_WM, + IGD_CURSOR_GUARD_WM, + IGD_FIFO_LINE_SIZE, +}; +static struct intel_watermark_params igd_cursor_hplloff_wm = { + IGD_CURSOR_FIFO, + IGD_CURSOR_MAX_WM, + IGD_CURSOR_DFT_WM, + IGD_CURSOR_GUARD_WM, + IGD_FIFO_LINE_SIZE +}; +static struct intel_watermark_params i945_wm_info = { + I915_FIFO_LINE_SIZE, + I915_MAX_WM, + 1, + 0, + IGD_FIFO_LINE_SIZE +}; +static struct intel_watermark_params i915_wm_info = { + I945_FIFO_SIZE, + I915_MAX_WM, + 1, + 0, + I915_FIFO_LINE_SIZE +}; +static struct intel_watermark_params i855_wm_info = { + I855GM_FIFO_SIZE, + I915_MAX_WM, + 1, + 0, + I830_FIFO_LINE_SIZE +}; +static struct intel_watermark_params i830_wm_info = { + I830_FIFO_SIZE, + I915_MAX_WM, + 1, + 0, + I830_FIFO_LINE_SIZE +}; + +static unsigned long intel_calculate_wm(unsigned long clock_in_khz, + struct intel_watermark_params *wm, + int pixel_size, + unsigned long latency_ns) +{ + unsigned long bytes_required, wm_size; + + bytes_required = (clock_in_khz * pixel_size * latency_ns) / 1000000; + bytes_required /= wm->cacheline_size; + wm_size = wm->fifo_size - bytes_required - wm->guard_size; + + if (wm_size > wm->max_wm) + wm_size = wm->max_wm; + if (wm_size == 0) + wm_size = wm->default_wm; + return wm_size; +} + +struct cxsr_latency { + int is_desktop; + unsigned long fsb_freq; + unsigned long mem_freq; + unsigned long display_sr; + unsigned long display_hpll_disable; + unsigned long cursor_sr; + unsigned long cursor_hpll_disable; +}; + +static struct cxsr_latency cxsr_latency_table[] = { + {1, 800, 400, 3382, 33382, 3983, 33983}, /* DDR2-400 SC */ + {1, 800, 667, 3354, 33354, 3807, 33807}, /* DDR2-667 SC */ + {1, 800, 800, 3347, 33347, 3763, 33763}, /* DDR2-800 SC */ + + {1, 667, 400, 3400, 33400, 4021, 34021}, /* DDR2-400 SC */ + {1, 667, 667, 3372, 33372, 3845, 33845}, /* DDR2-667 SC */ + {1, 667, 800, 3386, 33386, 3822, 33822}, /* DDR2-800 SC */ + + {1, 400, 400, 3472, 33472, 4173, 34173}, /* DDR2-400 SC */ + {1, 400, 667, 3443, 33443, 3996, 33996}, /* DDR2-667 SC */ + {1, 400, 800, 3430, 33430, 3946, 33946}, /* DDR2-800 SC */ + + {0, 800, 400, 3438, 33438, 4065, 34065}, /* DDR2-400 SC */ + {0, 800, 667, 3410, 33410, 3889, 33889}, /* DDR2-667 SC */ + {0, 800, 800, 3403, 33403, 3845, 33845}, /* DDR2-800 SC */ + + {0, 667, 400, 3456, 33456, 4103, 34106}, /* DDR2-400 SC */ + {0, 667, 667, 3428, 33428, 3927, 33927}, /* DDR2-667 SC */ + {0, 667, 800, 3443, 33443, 3905, 33905}, /* DDR2-800 SC */ + + {0, 400, 400, 3528, 33528, 4255, 34255}, /* DDR2-400 SC */ + {0, 400, 667, 3500, 33500, 4079, 34079}, /* DDR2-667 SC */ + {0, 400, 800, 3487, 33487, 4029, 34029}, /* DDR2-800 SC */ +}; + +static struct cxsr_latency *intel_get_cxsr_latency(int is_desktop, int fsb, + int mem) +{ + int i; + struct cxsr_latency *latency; + + if (fsb == 0 || mem == 0) + return NULL; + + for (i = 0; i < ARRAY_SIZE(cxsr_latency_table); i++) { + latency = &cxsr_latency_table[i]; + if (is_desktop == latency->is_desktop && + fsb == latency->fsb_freq && mem == latency->mem_freq) + break; + } + if (i >= ARRAY_SIZE(cxsr_latency_table)) { + DRM_DEBUG("Unknown FSB/MEM found, disable CxSR\n"); + return NULL; + } + return latency; +} + +static void igd_disable_cxsr(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + u32 reg; + + /* deactivate cxsr */ + reg = I915_READ(DSPFW3); + reg &= ~(IGD_SELF_REFRESH_EN); + I915_WRITE(DSPFW3, reg); + DRM_INFO("Big FIFO is disabled\n"); +} + +static void igd_enable_cxsr(struct drm_device *dev, unsigned long clock, + int pixel_size) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + u32 reg; + unsigned long wm; + struct cxsr_latency *latency; + + latency = intel_get_cxsr_latency(IS_IGDG(dev), dev_priv->fsb_freq, + dev_priv->mem_freq); + if (!latency) { + DRM_DEBUG("Unknown FSB/MEM found, disable CxSR\n"); + igd_disable_cxsr(dev); + return; + } + + /* Display SR */ + wm = intel_calculate_wm(clock, &igd_display_wm, pixel_size, + latency->display_sr); + reg = I915_READ(DSPFW1); + reg &= 0x7fffff; + reg |= wm << 23; + I915_WRITE(DSPFW1, reg); + DRM_DEBUG("DSPFW1 register is %x\n", reg); + + /* cursor SR */ + wm = intel_calculate_wm(clock, &igd_cursor_wm, pixel_size, + latency->cursor_sr); + reg = I915_READ(DSPFW3); + reg &= ~(0x3f << 24); + reg |= (wm & 0x3f) << 24; + I915_WRITE(DSPFW3, reg); + + /* Display HPLL off SR */ + wm = intel_calculate_wm(clock, &igd_display_hplloff_wm, + latency->display_hpll_disable, I915_FIFO_LINE_SIZE); + reg = I915_READ(DSPFW3); + reg &= 0xfffffe00; + reg |= wm & 0x1ff; + I915_WRITE(DSPFW3, reg); + + /* cursor HPLL off SR */ + wm = intel_calculate_wm(clock, &igd_cursor_hplloff_wm, pixel_size, + latency->cursor_hpll_disable); + reg = I915_READ(DSPFW3); + reg &= ~(0x3f << 16); + reg |= (wm & 0x3f) << 16; + I915_WRITE(DSPFW3, reg); + DRM_DEBUG("DSPFW3 register is %x\n", reg); + + /* activate cxsr */ + reg = I915_READ(DSPFW3); + reg |= IGD_SELF_REFRESH_EN; + I915_WRITE(DSPFW3, reg); + + DRM_INFO("Big FIFO is enabled\n"); + + return; +} + +const static int latency_ns = 5000; /* default for non-igd platforms */ + + +static void i965_update_wm(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + + DRM_DEBUG("Setting FIFO watermarks - A: 8, B: 8, C: 8, SR 8\n"); + + /* 965 has limitations... */ + I915_WRITE(DSPFW1, (8 << 16) | (8 << 8) | (8 << 0)); + I915_WRITE(DSPFW2, (8 << 8) | (8 << 0)); +} + +static void i9xx_update_wm(struct drm_device *dev, int planea_clock, + int planeb_clock, int sr_hdisplay, int pixel_size) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + uint32_t fwater_lo = I915_READ(FW_BLC) & MM_FIFO_WATERMARK; + uint32_t fwater_hi = I915_READ(FW_BLC2) & LM_FIFO_WATERMARK; + int bsize, asize, cwm, bwm = 1, awm = 1, srwm = 1; + uint32_t dsparb = I915_READ(DSPARB); + int planea_entries, planeb_entries; + struct intel_watermark_params *wm_params; + unsigned long line_time_us; + int sr_clock, sr_entries = 0; + + if (IS_I965GM(dev) || IS_I945GM(dev)) + wm_params = &i945_wm_info; + else if (IS_I9XX(dev)) + wm_params = &i915_wm_info; + else + wm_params = &i855_wm_info; + + planea_entries = intel_calculate_wm(planea_clock, wm_params, + pixel_size, latency_ns); + planeb_entries = intel_calculate_wm(planeb_clock, wm_params, + pixel_size, latency_ns); + + DRM_DEBUG("FIFO entries - A: %d, B: %d\n", planea_entries, + planeb_entries); + + if (IS_I9XX(dev)) { + asize = dsparb & 0x7f; + bsize = (dsparb >> DSPARB_CSTART_SHIFT) & 0x7f; + } else { + asize = dsparb & 0x1ff; + bsize = (dsparb >> DSPARB_BEND_SHIFT) & 0x1ff; + } + DRM_DEBUG("FIFO size - A: %d, B: %d\n", asize, bsize); + + /* Two extra entries for padding */ + awm = asize - (planea_entries + 2); + bwm = bsize - (planeb_entries + 2); + + /* Sanity check against potentially bad FIFO allocations */ + if (awm <= 0) { + /* pipe is on but has too few FIFO entries */ + if (planea_entries != 0) + DRM_DEBUG("plane A needs more FIFO entries\n"); + awm = 1; + } + if (bwm <= 0) { + if (planeb_entries != 0) + DRM_DEBUG("plane B needs more FIFO entries\n"); + bwm = 1; + } + + /* + * Overlay gets an aggressive default since video jitter is bad. + */ + cwm = 2; + + /* Calc sr entries for one pipe configs */ + if (!planea_clock || !planeb_clock) { + sr_clock = planea_clock ? planea_clock : planeb_clock; + line_time_us = (sr_hdisplay * 1000) / sr_clock; + sr_entries = (((latency_ns / line_time_us) + 1) * pixel_size * + sr_hdisplay) / 1000; + sr_entries = roundup(sr_entries / wm_params->cacheline_size, 1); + if (sr_entries < wm_params->fifo_size) + srwm = wm_params->fifo_size - sr_entries; + } + + DRM_DEBUG("Setting FIFO watermarks - A: %d, B: %d, C: %d, SR %d\n", + awm, bwm, cwm, srwm); + + fwater_lo = fwater_lo | ((bwm & 0x3f) << 16) | (awm & 0x3f); + fwater_hi = fwater_hi | (cwm & 0x1f); + + I915_WRITE(FW_BLC, fwater_lo); + I915_WRITE(FW_BLC2, fwater_hi); + if (IS_I9XX(dev)) + I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN | (srwm & 0x3f)); +} + +static void i830_update_wm(struct drm_device *dev, int planea_clock, + int pixel_size) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + uint32_t dsparb = I915_READ(DSPARB); + uint32_t fwater_lo = I915_READ(FW_BLC) & MM_FIFO_WATERMARK; + unsigned int asize, awm; + int planea_entries; + + planea_entries = intel_calculate_wm(planea_clock, &i830_wm_info, + pixel_size, latency_ns); + + asize = dsparb & 0x7f; + + awm = asize - planea_entries; + + fwater_lo = fwater_lo | awm; + + I915_WRITE(FW_BLC, fwater_lo); +} + +/** + * intel_update_watermarks - update FIFO watermark values based on current modes + * + * Calculate watermark values for the various WM regs based on current mode + * and plane configuration. + * + * There are several cases to deal with here: + * - normal (i.e. non-self-refresh) + * - self-refresh (SR) mode + * - lines are large relative to FIFO size (buffer can hold up to 2) + * - lines are small relative to FIFO size (buffer can hold more than 2 + * lines), so need to account for TLB latency + * + * The normal calculation is: + * watermark = dotclock * bytes per pixel * latency + * where latency is platform & configuration dependent (we assume pessimal + * values here). + * + * The SR calculation is: + * watermark = (trunc(latency/line time)+1) * surface width * + * bytes per pixel + * where + * line time = htotal / dotclock + * and latency is assumed to be high, as above. + * + * The final value programmed to the register should always be rounded up, + * and include an extra 2 entries to account for clock crossings. + * + * We don't use the sprite, so we can ignore that. And on Crestline we have + * to set the non-SR watermarks to 8. + */ +static void intel_update_watermarks(struct drm_device *dev) +{ + struct drm_crtc *crtc; + struct intel_crtc *intel_crtc; + int sr_hdisplay = 0; + unsigned long planea_clock = 0, planeb_clock = 0, sr_clock = 0; + int enabled = 0, pixel_size = 0; + + if (DSPARB_HWCONTROL(dev)) + return; + + /* Get the clock config from both planes */ + list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { + intel_crtc = to_intel_crtc(crtc); + if (crtc->enabled) { + enabled++; + if (intel_crtc->plane == 0) { + DRM_DEBUG("plane A (pipe %d) clock: %d\n", + intel_crtc->pipe, crtc->mode.clock); + planea_clock = crtc->mode.clock; + } else { + DRM_DEBUG("plane B (pipe %d) clock: %d\n", + intel_crtc->pipe, crtc->mode.clock); + planeb_clock = crtc->mode.clock; + } + sr_hdisplay = crtc->mode.hdisplay; + sr_clock = crtc->mode.clock; + if (crtc->fb) + pixel_size = crtc->fb->bits_per_pixel / 8; + else + pixel_size = 4; /* by default */ + } + } + + if (enabled <= 0) + return; + + /* Single pipe configs can enable self refresh */ + if (enabled == 1 && IS_IGD(dev)) + igd_enable_cxsr(dev, sr_clock, pixel_size); + else if (IS_IGD(dev)) + igd_disable_cxsr(dev); + + if (IS_I965G(dev)) + i965_update_wm(dev); + else if (IS_I9XX(dev) || IS_MOBILE(dev)) + i9xx_update_wm(dev, planea_clock, planeb_clock, sr_hdisplay, + pixel_size); + else + i830_update_wm(dev, planea_clock, pixel_size); +} + static int intel_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode, @@ -1951,6 +2368,9 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, /* Flush the plane changes */ ret = intel_pipe_set_base(crtc, x, y, old_fb); + + intel_update_watermarks(dev); + drm_vblank_post_modeset(dev, pipe); return ret; @@ -2439,6 +2859,7 @@ static void intel_crtc_init(struct drm_device *dev, int pipe) drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256); intel_crtc->pipe = pipe; + intel_crtc->plane = pipe; for (i = 0; i < 256; i++) { intel_crtc->lut_r[i] = i; intel_crtc->lut_g[i] = i; -- cgit v1.2.3 From 788d84bba47ea3eb377f7a3ae4fd1ee84b84877b Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Wed, 1 Jul 2009 18:34:52 +0100 Subject: Fix pci_unmap_addr() et al on i386. We can run a 32-bit kernel on boxes with an IOMMU, so we need pci_unmap_addr() etc. to work -- without it, drivers will leak mappings. To be honest, this whole thing looks like it's more pain than it's worth; I'm half inclined to remove the no-op #else case altogether. But this is the minimal fix, which just does the right thing if CONFIG_DMAR is set. Signed-off-by: David Woodhouse Cc: stable@kernel.org [ for 2.6.30 ] Signed-off-by: Linus Torvalds --- arch/x86/include/asm/pci.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h index 927958d13c1..1ff685ca221 100644 --- a/arch/x86/include/asm/pci.h +++ b/arch/x86/include/asm/pci.h @@ -91,7 +91,7 @@ extern void pci_iommu_alloc(void); #define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys) -#if defined(CONFIG_X86_64) || defined(CONFIG_DMA_API_DEBUG) +#if defined(CONFIG_X86_64) || defined(CONFIG_DMAR) || defined(CONFIG_DMA_API_DEBUG) #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \ dma_addr_t ADDR_NAME; -- cgit v1.2.3 From a15a519ed6e5e644f5a33c213c00b0c1d3cfe683 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Wed, 1 Jul 2009 18:49:06 +0100 Subject: Fix iommu address space allocation This fixes kernel.org bug #13584. The IOVA code attempted to optimise the insertion of new ranges into the rbtree, with the unfortunate result that some ranges just didn't get inserted into the tree at all. Then those ranges would be handed out more than once, and things kind of go downhill from there. Introduced after 2.6.25 by ddf02886cbe665d67ca750750196ea5bf524b10b ("PCI: iova RB tree setup tweak"). Signed-off-by: David Woodhouse Cc: mark gross Cc: Andrew Morton Cc: stable@kernel.org Signed-off-by: Linus Torvalds --- drivers/pci/iova.c | 26 ++++++++++++++++++++++---- 1 file changed, 22 insertions(+), 4 deletions(-) diff --git a/drivers/pci/iova.c b/drivers/pci/iova.c index 2287116e982..46dd440e231 100644 --- a/drivers/pci/iova.c +++ b/drivers/pci/iova.c @@ -1,9 +1,19 @@ /* - * Copyright (c) 2006, Intel Corporation. + * Copyright © 2006-2009, Intel Corporation. * - * This file is released under the GPLv2. + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., 59 Temple + * Place - Suite 330, Boston, MA 02111-1307 USA. * - * Copyright (C) 2006-2008 Intel Corporation * Author: Anil S Keshavamurthy */ @@ -123,7 +133,15 @@ move_left: /* Insert the new_iova into domain rbtree by holding writer lock */ /* Add new node and rebalance tree. */ { - struct rb_node **entry = &((prev)), *parent = NULL; + struct rb_node **entry, *parent = NULL; + + /* If we have 'prev', it's a valid place to start the + insertion. Otherwise, start from the root. */ + if (prev) + entry = &prev; + else + entry = &iovad->rbroot.rb_node; + /* Figure out where to put new node */ while (*entry) { struct iova *this = container_of(*entry, -- cgit v1.2.3 From 6ff4fd05676bc5b5c930bef25901e489f7843660 Mon Sep 17 00:00:00 2001 From: "ling.ma@intel.com" Date: Thu, 25 Jun 2009 10:59:22 +0800 Subject: drm/i915: Set SSC frequency for 8xx chips correctly All 8xx class chips have the 66/48 split, not just 855. Signed-off-by: Ma Ling Reviewed-by: Jesse Barnes Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/intel_bios.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index 716409a5724..da22863c05c 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -195,10 +195,12 @@ parse_general_features(struct drm_i915_private *dev_priv, dev_priv->lvds_use_ssc = general->enable_ssc; if (dev_priv->lvds_use_ssc) { - if (IS_I855(dev_priv->dev)) - dev_priv->lvds_ssc_freq = general->ssc_freq ? 66 : 48; - else - dev_priv->lvds_ssc_freq = general->ssc_freq ? 100 : 96; + if (IS_I85X(dev_priv->dev)) + dev_priv->lvds_ssc_freq = + general->ssc_freq ? 66 : 48; + else + dev_priv->lvds_ssc_freq = + general->ssc_freq ? 100 : 96; } } } -- cgit v1.2.3 From c85994e4771025ef2a66533eb1a4c6c2217b9cda Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Wed, 1 Jul 2009 19:21:24 +0100 Subject: intel-iommu: Ensure that PTE writes are 64-bit atomic, even on i386 Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 37 +++++++++++++++++++++++-------------- 1 file changed, 23 insertions(+), 14 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index ec7e032d5ab..eea1006c860 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -222,7 +222,12 @@ static inline void dma_set_pte_prot(struct dma_pte *pte, unsigned long prot) static inline u64 dma_pte_addr(struct dma_pte *pte) { - return (pte->val & VTD_PAGE_MASK); +#ifdef CONFIG_64BIT + return pte->val & VTD_PAGE_MASK; +#else + /* Must have a full atomic 64-bit read */ + return __cmpxchg64(pte, 0ULL, 0ULL) & VTD_PAGE_MASK; +#endif } static inline void dma_set_pte_pfn(struct dma_pte *pte, unsigned long pfn) @@ -712,6 +717,8 @@ static struct dma_pte *pfn_to_dma_pte(struct dmar_domain *domain, break; if (!dma_pte_present(pte)) { + uint64_t pteval; + tmp_page = alloc_pgtable_page(); if (!tmp_page) { @@ -719,15 +726,15 @@ static struct dma_pte *pfn_to_dma_pte(struct dmar_domain *domain, flags); return NULL; } - domain_flush_cache(domain, tmp_page, PAGE_SIZE); - dma_set_pte_pfn(pte, virt_to_dma_pfn(tmp_page)); - /* - * high level table always sets r/w, last level page - * table control read/write - */ - dma_set_pte_readable(pte); - dma_set_pte_writable(pte); - domain_flush_cache(domain, pte, sizeof(*pte)); + domain_flush_cache(domain, tmp_page, VTD_PAGE_SIZE); + pteval = (virt_to_dma_pfn(tmp_page) << VTD_PAGE_SHIFT) | DMA_PTE_READ | DMA_PTE_WRITE; + if (cmpxchg64(&pte->val, 0ULL, pteval)) { + /* Someone else set it while we were thinking; use theirs. */ + free_pgtable_page(tmp_page); + } else { + dma_pte_addr(pte); + domain_flush_cache(domain, pte, sizeof(*pte)); + } } parent = phys_to_virt(dma_pte_addr(pte)); level--; @@ -1666,6 +1673,8 @@ static int __domain_mapping(struct dmar_domain *domain, unsigned long iov_pfn, } while (nr_pages--) { + uint64_t tmp; + if (!sg_res) { sg_res = (sg->offset + sg->length + VTD_PAGE_SIZE - 1) >> VTD_PAGE_SHIFT; sg->dma_address = ((dma_addr_t)iov_pfn << VTD_PAGE_SHIFT) + sg->offset; @@ -1680,17 +1689,17 @@ static int __domain_mapping(struct dmar_domain *domain, unsigned long iov_pfn, /* We don't need lock here, nobody else * touches the iova range */ - if (unlikely(dma_pte_addr(pte))) { + tmp = cmpxchg64(&pte->val, 0ULL, pteval); + if (tmp) { static int dumps = 5; - printk(KERN_CRIT "ERROR: DMA PTE for vPFN 0x%lx already set (to %llx)\n", - iov_pfn, pte->val); + printk(KERN_CRIT "ERROR: DMA PTE for vPFN 0x%lx already set (to %llx not %llx)\n", + iov_pfn, tmp, (unsigned long long)pteval); if (dumps) { dumps--; debug_dma_dump_mappings(NULL); } WARN_ON(1); } - pte->val = pteval; pte++; if (!nr_pages || (unsigned long)pte >> VTD_PAGE_SHIFT != -- cgit v1.2.3 From d960eea974f5e500c0dcb95a934239cc1f481cfd Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Mon, 29 Jun 2009 14:54:11 -0700 Subject: kernel-doc: move ignoring kmemcheck Somehow I managed to generate a diff that put these 2 lines into the wrong function: should have been in dump_struct() instead of in dump_enum(). Signed-off-by: Randy Dunlap Signed-off-by: Linus Torvalds --- scripts/kernel-doc | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/scripts/kernel-doc b/scripts/kernel-doc index ed591e9b7d1..b52d340d759 100755 --- a/scripts/kernel-doc +++ b/scripts/kernel-doc @@ -1426,6 +1426,8 @@ sub dump_struct($$) { # strip comments: $members =~ s/\/\*.*?\*\///gos; $nested =~ s/\/\*.*?\*\///gos; + # strip kmemcheck_bitfield_{begin,end}.*; + $members =~ s/kmemcheck_bitfield_.*?;//gos; create_parameterlist($members, ';', $file); check_sections($file, $declaration_name, "struct", $sectcheck, $struct_actual, $nested); @@ -1468,8 +1470,6 @@ sub dump_enum($$) { } } - # strip kmemcheck_bitfield_{begin,end}.*; - $members =~ s/kmemcheck_bitfield_.*?;//gos; output_declaration($declaration_name, 'enum', -- cgit v1.2.3 From 34e19ada994fb9cb3d11873f2b734602e2135f3a Mon Sep 17 00:00:00 2001 From: Matt Fleming Date: Wed, 1 Jul 2009 18:14:18 +0000 Subject: sh: Fix compiler error and include the definition of IS_ERR_VALUE When arch/sh/include/asm/syscall_32.h is included from a file that doesn't also include linux/err.h the following error is produced, In file included from /home/matt/src/kernels/sh-2.6/arch/sh/include/asm/syscall.h:5, from kernel/trace/trace_syscalls.c:3: /home/matt/src/kernels/sh-2.6/arch/sh/include/asm/syscall_32.h: In function 'syscall_get_error': /home/matt/src/kernels/sh-2.6/arch/sh/include/asm/syscall_32.h:28: error: implicit declaration of function 'IS_ERR_VALUE' make[2]: *** [kernel/trace/trace_syscalls.o] Error 1 make[1]: *** [kernel/trace] Error 2 make: *** [kernel] Error 2 Signed-off-by: Matt Fleming Signed-off-by: Paul Mundt --- arch/sh/include/asm/syscall_32.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/sh/include/asm/syscall_32.h b/arch/sh/include/asm/syscall_32.h index 5bc34681d99..6f83f2cc45c 100644 --- a/arch/sh/include/asm/syscall_32.h +++ b/arch/sh/include/asm/syscall_32.h @@ -3,6 +3,7 @@ #include #include +#include #include /* The system call number is given by the user in R3 */ -- cgit v1.2.3 From 1c6a307a54668eda556f499c94e75086aaf8f80f Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 1 Jul 2009 06:50:31 +0000 Subject: sh: LCDC dcache flush for deferred io Since writenotify on uncached vmas is unsupported in 2.6.31, live with cached framebuffer memory in the deferred io case for now and flush the dcache before forcing refresh. Signed-off-by: Paul Mundt Acked-by: Magnus damm --- drivers/video/sh_mobile_lcdcfb.c | 53 ++++++++++++++++++++++++++++++++++------ 1 file changed, 45 insertions(+), 8 deletions(-) diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c index f10d2fbeda0..da983b720f0 100644 --- a/drivers/video/sh_mobile_lcdcfb.c +++ b/drivers/video/sh_mobile_lcdcfb.c @@ -17,6 +17,7 @@ #include #include #include +#include #include

# # Integrate P: and M: lines # perl -i -e 'local $/; while(<>) { s@P: ([^\n]+)\nM: ([^\n]+)\n@M: \1 <\2>\n@g; print; }' MAINTAINERS # # Quote names with periods, commas and parentheses # sed -r -i -e "s/^M: (.+)([\.,'\(])(.*) Acked-by: Pavel Machek Acked-by: Randy Dunlap Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- MAINTAINERS | 2721 ++++++++++++++++++++--------------------------------------- 1 file changed, 907 insertions(+), 1814 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index e4e3471cd0e..a013e963fc0 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -104,67 +104,58 @@ X: Files and directories that are NOT maintained, same rules as F: matches all files in and below net excluding net/ipv6/ 3C505 NETWORK DRIVER -P: Philip Blundell -M: philb@gnu.org +M: Philip Blundell L: netdev@vger.kernel.org S: Maintained F: drivers/net/3c505* 3C59X NETWORK DRIVER -P: Steffen Klassert -M: klassert@mathematik.tu-chemnitz.de +M: Steffen Klassert L: netdev@vger.kernel.org S: Maintained F: Documentation/networking/vortex.txt F: drivers/net/3c59x.c 3CR990 NETWORK DRIVER -P: David Dillow -M: dave@thedillows.org +M: David Dillow L: netdev@vger.kernel.org S: Maintained F: drivers/net/typhoon* 3W-9XXX SATA-RAID CONTROLLER DRIVER -P: Adam Radford -M: linuxraid@amcc.com +M: Adam Radford L: linux-scsi@vger.kernel.org W: http://www.amcc.com S: Supported F: drivers/scsi/3w-9xxx* 3W-XXXX ATA-RAID CONTROLLER DRIVER -P: Adam Radford -M: linuxraid@amcc.com +M: Adam Radford L: linux-scsi@vger.kernel.org W: http://www.amcc.com S: Supported F: drivers/scsi/3w-xxxx* 53C700 AND 53C700-66 SCSI DRIVER -P: James E.J. Bottomley -M: James.Bottomley@HansenPartnership.com +M: "James E.J. Bottomley" L: linux-scsi@vger.kernel.org S: Maintained F: drivers/scsi/53c700* 6PACK NETWORK DRIVER FOR AX.25 -P: Andreas Koensgen -M: ajk@comnets.uni-bremen.de +M: Andreas Koensgen L: linux-hams@vger.kernel.org S: Maintained F: drivers/net/hamradio/6pack.c 8169 10/100/1000 GIGABIT ETHERNET DRIVER -P: Francois Romieu -M: romieu@fr.zoreil.com +M: Francois Romieu L: netdev@vger.kernel.org S: Maintained F: drivers/net/r8169.c 8250/16?50 (AND CLONE UARTS) SERIAL DRIVER -P: Alan Cox -M: alan@lxorguk.ukuu.org.uk +M: Alan Cox L: linux-serial@vger.kernel.org W: http://serial.sourceforge.net S: Odd Fixes @@ -172,20 +163,16 @@ F: drivers/serial/8250* F: include/linux/serial_8250.h 8390 NETWORK DRIVERS [WD80x3/SMC-ELITE, SMC-ULTRA, NE2000, 3C503, etc.] -P: Paul Gortmaker -M: p_gortmaker@yahoo.com +M: Paul Gortmaker L: netdev@vger.kernel.org S: Maintained F: drivers/net/*8390* F: drivers/net/ax88796.c 9P FILE SYSTEM -P: Eric Van Hensbergen -M: ericvh@gmail.com -P: Ron Minnich -M: rminnich@sandia.gov -P: Latchesar Ionkov -M: lucho@ionkov.net +M: Eric Van Hensbergen +M: Ron Minnich +M: Latchesar Ionkov L: v9fs-developer@lists.sourceforge.net W: http://swik.net/v9fs T: git git://git.kernel.org/pub/scm/linux/kernel/ericvh/v9fs.git @@ -194,15 +181,13 @@ F: Documentation/filesystems/9p.txt F: fs/9p/ A2232 SERIAL BOARD DRIVER -P: Enver Haase -M: A2232@gmx.net +M: Enver Haase L: linux-m68k@lists.linux-m68k.org S: Maintained F: drivers/char/ser_a2232* AACRAID SCSI RAID DRIVER -P: Adaptec OEM Raid Solutions -M: aacraid@adaptec.com +M: Adaptec OEM Raid Solutions L: linux-scsi@vger.kernel.org W: http://www.adaptec.com/ S: Supported @@ -210,44 +195,38 @@ F: Documentation/scsi/aacraid.txt F: drivers/scsi/aacraid/ ABIT UGURU 1,2 HARDWARE MONITOR DRIVER -P: Hans de Goede -M: j.w.r.degoede@hhs.nl +M: Hans de Goede L: lm-sensors@lm-sensors.org S: Maintained F: drivers/hwmon/abituguru.c ABIT UGURU 3 HARDWARE MONITOR DRIVER -P: Alistair John Strachan -M: alistair@devzero.co.uk +M: Alistair John Strachan L: lm-sensors@lm-sensors.org S: Maintained F: drivers/hwmon/abituguru3.c ACENIC DRIVER -P: Jes Sorensen -M: jes@trained-monkey.org +M: Jes Sorensen L: linux-acenic@sunsite.dk S: Maintained F: drivers/net/acenic* ACER ASPIRE ONE TEMPERATURE AND FAN DRIVER -P: Peter Feuerer -M: peter@piie.net +M: Peter Feuerer W: http://piie.net/?section=acerhdf S: Maintained F: drivers/platform/x86/acerhdf.c ACER WMI LAPTOP EXTRAS -P: Carlos Corbacho -M: carlos@strangeworlds.co.uk +M: Carlos Corbacho L: aceracpi@googlegroups.com (subscribers-only) W: http://code.google.com/p/aceracpi S: Maintained F: drivers/platform/x86/acer-wmi.c ACPI -P: Len Brown -M: lenb@kernel.org +M: Len Brown L: linux-acpi@vger.kernel.org W: http://www.lesswatts.org/projects/acpi/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git @@ -257,8 +236,7 @@ F: drivers/pnp/pnpacpi/ F: include/linux/acpi.h ACPI BATTERY DRIVERS -P: Alexey Starikovskiy -M: astarikovskiy@suse.de +M: Alexey Starikovskiy L: linux-acpi@vger.kernel.org W: http://www.lesswatts.org/projects/acpi/ S: Supported @@ -266,80 +244,69 @@ F: drivers/acpi/battery.c F: drivers/acpi/*sbs* ACPI EC DRIVER -P: Alexey Starikovskiy -M: astarikovskiy@suse.de +M: Alexey Starikovskiy L: linux-acpi@vger.kernel.org W: http://www.lesswatts.org/projects/acpi/ S: Supported F: drivers/acpi/ec.c ACPI FAN DRIVER -P: Zhang Rui -M: rui.zhang@intel.com +M: Zhang Rui L: linux-acpi@vger.kernel.org W: http://www.lesswatts.org/projects/acpi/ S: Supported F: drivers/acpi/fan.c ACPI PCI HOTPLUG DRIVER -P: Kristen Carlson Accardi -M: kristen.c.accardi@intel.com +M: Kristen Carlson Accardi L: linux-pci@vger.kernel.org S: Supported F: drivers/pci/hotplug/acpi* ACPI THERMAL DRIVER -P: Zhang Rui -M: rui.zhang@intel.com +M: Zhang Rui L: linux-acpi@vger.kernel.org W: http://www.lesswatts.org/projects/acpi/ S: Supported F: drivers/acpi/*thermal* ACPI VIDEO DRIVER -P: Zhang Rui -M: rui.zhang@intel.com +M: Zhang Rui L: linux-acpi@vger.kernel.org W: http://www.lesswatts.org/projects/acpi/ S: Supported F: drivers/acpi/video.c ACPI WMI DRIVER -P: Carlos Corbacho -M: carlos@strangeworlds.co.uk +M: Carlos Corbacho L: linux-acpi@vger.kernel.org W: http://www.lesswatts.org/projects/acpi/ S: Maintained F: drivers/platform/x86/wmi.c AD1889 ALSA SOUND DRIVER -P: Kyle McMartin -M: kyle@mcmartin.ca -P: Thibaut Varene -M: T-Bone@parisc-linux.org +M: Kyle McMartin +M: Thibaut Varene W: http://wiki.parisc-linux.org/AD1889 L: linux-parisc@vger.kernel.org S: Maintained F: sound/pci/ad1889.* ADM1025 HARDWARE MONITOR DRIVER -P: Jean Delvare -M: khali@linux-fr.org +M: Jean Delvare L: lm-sensors@lm-sensors.org S: Maintained F: Documentation/hwmon/adm1025 F: drivers/hwmon/adm1025.c ADM1029 HARDWARE MONITOR DRIVER -P: Corentin Labbe -M: corentin.labbe@geomatys.fr +M: Corentin Labbe L: lm-sensors@lm-sensors.org S: Maintained F: drivers/hwmon/adm1029.c ADM8211 WIRELESS DRIVER -P: Michael Wu -M: flamingice@sourmilk.net +M: Michael Wu L: linux-wireless@vger.kernel.org W: http://linuxwireless.org/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/mwu/mac80211-drivers.git @@ -347,35 +314,30 @@ S: Maintained F: drivers/net/wireless/adm8211.* ADT746X FAN DRIVER -P: Colin Leroy -M: colin@colino.net +M: Colin Leroy S: Maintained F: drivers/macintosh/therm_adt746x.c ADVANSYS SCSI DRIVER -P: Matthew Wilcox -M: matthew@wil.cx +M: Matthew Wilcox L: linux-scsi@vger.kernel.org S: Maintained F: Documentation/scsi/advansys.txt F: drivers/scsi/advansys.c AEDSP16 DRIVER -P: Riccardo Facchetti -M: fizban@tin.it +M: Riccardo Facchetti S: Maintained F: sound/oss/aedsp16.c AFFS FILE SYSTEM -P: Roman Zippel -M: zippel@linux-m68k.org +M: Roman Zippel S: Maintained F: Documentation/filesystems/affs.txt F: fs/affs/ AFS FILESYSTEM & AF_RXRPC SOCKET DOMAIN -P: David Howells -M: dhowells@redhat.com +M: David Howells L: linux-afs@lists.infradead.org S: Supported F: fs/afs/ @@ -383,40 +345,35 @@ F: include/net/af_rxrpc.h F: net/rxrpc/af_rxrpc.c AGPGART DRIVER -P: David Airlie -M: airlied@linux.ie +M: David Airlie T: git git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6.git S: Maintained F: drivers/char/agp/ F: include/linux/agp* AHA152X SCSI DRIVER -P: Juergen E. Fischer -M: fischer@norbit.de +M: "Juergen E. Fischer" L: linux-scsi@vger.kernel.org S: Maintained F: drivers/scsi/aha152x* F: drivers/scsi/pcmcia/aha152x* AIC7XXX / AIC79XX SCSI DRIVER -P: Hannes Reinecke -M: hare@suse.de +M: Hannes Reinecke L: linux-scsi@vger.kernel.org S: Maintained F: drivers/scsi/aic7xxx/ F: drivers/scsi/aic7xxx_old/ AIO -P: Benjamin LaHaise -M: bcrl@kvack.org +M: Benjamin LaHaise L: linux-aio@kvack.org S: Supported F: fs/aio.c F: include/linux/*aio*.h ALCATEL SPEEDTOUCH USB DRIVER -P: Duncan Sands -M: duncan.sands@free.fr +M: Duncan Sands L: linux-usb@vger.kernel.org W: http://www.linux-usb.org/SpeedTouch/ S: Maintained @@ -424,32 +381,27 @@ F: drivers/usb/atm/speedtch.c F: drivers/usb/atm/usbatm.c ALCHEMY AU1XX0 MMC DRIVER -P: Manuel Lauss -M: manuel.lauss@gmail.com +M: Manuel Lauss S: Maintained F: drivers/mmc/host/au1xmmc.c ALI1563 I2C DRIVER -P: Rudolf Marek -M: r.marek@assembler.cz +M: Rudolf Marek L: linux-i2c@vger.kernel.org S: Maintained F: Documentation/i2c/busses/i2c-ali1563 F: drivers/i2c/busses/i2c-ali1563.c ALPHA PORT -P: Richard Henderson -M: rth@twiddle.net +M: Richard Henderson S: Odd Fixes for 2.4; Maintained for 2.6. -P: Ivan Kokshaysky -M: ink@jurassic.park.msu.ru +M: Ivan Kokshaysky S: Maintained for 2.4; PCI support for 2.6. L: linux-alpha@vger.kernel.org F: arch/alpha/ AMD GEODE CS5536 USB DEVICE CONTROLLER DRIVER -P: Thomas Dahlmann -M: dahlmann.thomas@arcor.de +M: Thomas Dahlmann L: linux-geode@lists.infradead.org (moderated for non-subscribers) S: Supported F: drivers/usb/gadget/amd5536udc.* @@ -466,8 +418,7 @@ F: drivers/video/geode/ F: arch/x86/include/asm/geode.h AMD IOMMU (AMD-VI) -P: Joerg Roedel -M: joerg.roedel@amd.com +M: Joerg Roedel L: iommu@lists.linux-foundation.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu.git S: Supported @@ -475,40 +426,33 @@ F: arch/x86/kernel/amd_iommu*.c F: arch/x86/include/asm/amd_iommu*.h AMD MICROCODE UPDATE SUPPORT -P: Andreas Herrmann -M: andreas.herrmann3@amd.com +M: Andreas Herrmann L: amd64-microcode@amd64.org S: Supported F: arch/x86/kernel/microcode_amd.c AMS (Apple Motion Sensor) DRIVER -P: Stelian Pop -M: stelian@popies.net -P: Michael Hanselmann -M: linux-kernel@hansmi.ch +M: Stelian Pop +M: Michael Hanselmann S: Supported F: drivers/hwmon/ams/ AMSO1100 RNIC DRIVER -P: Tom Tucker -M: tom@opengridcomputing.com -P: Steve Wise -M: swise@opengridcomputing.com +M: Tom Tucker +M: Steve Wise L: general@lists.openfabrics.org S: Maintained F: drivers/infiniband/hw/amso1100/ AOA (Apple Onboard Audio) ALSA DRIVER -P: Johannes Berg -M: johannes@sipsolutions.net +M: Johannes Berg L: linuxppc-dev@ozlabs.org L: alsa-devel@alsa-project.org (moderated for non-subscribers) S: Maintained F: sound/aoa/ APM DRIVER -P: Stephen Rothwell -M: sfr@canb.auug.org.au +M: Stephen Rothwell L: linux-laptop@vger.kernel.org W: http://www.canb.auug.org.au/~sfr/ S: Supported @@ -516,51 +460,44 @@ F: arch/x86/kernel/apm_32.c F: include/linux/apm_bios.h APPLE BCM5974 MULTITOUCH DRIVER -P: Henrik Rydberg -M: rydberg@euromail.se +M: Henrik Rydberg L: linux-input@vger.kernel.org S: Maintained F: drivers/input/mouse/bcm5974.c APPLE SMC DRIVER -P: Nicolas Boichat -M: nicolas@boichat.ch +M: Nicolas Boichat L: mactel-linux-devel@lists.sourceforge.net S: Maintained F: drivers/hwmon/applesmc.c APPLETALK NETWORK LAYER -P: Arnaldo Carvalho de Melo -M: acme@ghostprotocols.net +M: Arnaldo Carvalho de Melo S: Maintained F: drivers/net/appletalk/ F: net/appletalk/ APPLETOUCH TOUCHPAD DRIVER -P: Johannes Berg -M: johannes@sipsolutions.net +M: Johannes Berg L: linux-input@vger.kernel.org S: Maintained F: Documentation/input/appletouch.txt F: drivers/input/mouse/appletouch.c ARC FRAMEBUFFER DRIVER -P: Jaya Kumar -M: jayalk@intworks.biz +M: Jaya Kumar S: Maintained F: drivers/video/arcfb.c F: drivers/video/fb_defio.c ARM MFM AND FLOPPY DRIVERS -P: Ian Molton -M: spyro@f2s.com +M: Ian Molton S: Maintained F: arch/arm/lib/floppydma.S F: arch/arm/include/asm/floppy.h ARM PORT -P: Russell King -M: linux@arm.linux.org.uk +M: Russell King L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) W: http://www.arm.linux.org.uk/ S: Maintained @@ -571,79 +508,67 @@ S: Orphan F: drivers/mmc/host/mmci.* ARM/ADI ROADRUNNER MACHINE SUPPORT -P: Lennert Buytenhek -M: kernel@wantstofly.org +M: Lennert Buytenhek L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained F: arch/arm/mach-ixp23xx/ F: arch/arm/mach-ixp23xx/include/mach/ ARM/ADS SPHERE MACHINE SUPPORT -P: Lennert Buytenhek -M: kernel@wantstofly.org +M: Lennert Buytenhek L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained ARM/AFEB9260 MACHINE SUPPORT -P: Sergey Lapin -M: slapin@ossfans.org +M: Sergey Lapin L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained ARM/AJECO 1ARM MACHINE SUPPORT -P: Lennert Buytenhek -M: kernel@wantstofly.org +M: Lennert Buytenhek L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained ARM/ATMEL AT91RM9200 ARM ARCHITECTURE -P: Andrew Victor -M: linux@maxim.org.za +M: Andrew Victor L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) W: http://maxim.org.za/at91_26.html S: Maintained ARM/CIRRUS LOGIC EP93XX ARM ARCHITECTURE -P: Lennert Buytenhek -M: kernel@wantstofly.org +M: Lennert Buytenhek L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained ARM/CIRRUS LOGIC EDB9315A MACHINE SUPPORT -P: Lennert Buytenhek -M: kernel@wantstofly.org +M: Lennert Buytenhek L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained ARM/CLKDEV SUPPORT -P: Russell King -M: linux@arm.linux.org.uk +M: Russell King L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) F: arch/arm/common/clkdev.c F: arch/arm/include/asm/clkdev.h ARM/COMPULAB CM-X270/EM-X270 and CM-X300 MACHINE SUPPORT -P: Mike Rapoport -M: mike@compulab.co.il +M: Mike Rapoport L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained ARM/CORGI MACHINE SUPPORT -P: Richard Purdie -M: rpurdie@rpsys.net +M: Richard Purdie S: Maintained ARM/CORTINA SYSTEMS GEMINI ARM ARCHITECTURE -P: Paulius Zaleckas -M: paulius.zaleckas@teltonika.lt +M: Paulius Zaleckas L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) T: git git://gitorious.org/linux-gemini/mainline.git S: Maintained F: arch/arm/mach-gemini/ ARM/EBSA110 MACHINE SUPPORT -P: Russell King -M: linux@arm.linux.org.uk +M: Russell King L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) W: http://www.arm.linux.org.uk/ S: Maintained @@ -651,12 +576,9 @@ F: arch/arm/mach-ebsa110/ F: drivers/net/arm/am79c961a.* ARM/EZX SMARTPHONES (A780, A910, A1200, E680, ROKR E2 and ROKR E6) -P: Daniel Ribeiro -M: drwyrm@gmail.com -P: Stefan Schmidt -M: stefan@openezx.org -P: Harald Welte -M: laforge@openezx.org +M: Daniel Ribeiro +M: Stefan Schmidt +M: Harald Welte L: openezx-devel@lists.openezx.org (subscribers-only) W: http://www.openezx.org/ S: Maintained @@ -664,15 +586,13 @@ T: topgit git://git.openezx.org/openezx.git F: arch/arm/mach-pxa/ezx.c ARM/FARADAY FA526 PORT -P: Paulius Zaleckas -M: paulius.zaleckas@teltonika.lt +M: Paulius Zaleckas L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained F: arch/arm/mm/*-fa* ARM/FOOTBRIDGE ARCHITECTURE -P: Russell King -M: linux@arm.linux.org.uk +M: Russell King L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) W: http://www.arm.linux.org.uk/ S: Maintained @@ -680,175 +600,143 @@ F: arch/arm/include/asm/hardware/dec21285.h F: arch/arm/mach-footbridge/ ARM/FREESCALE IMX / MXC ARM ARCHITECTURE -P: Sascha Hauer -M: kernel@pengutronix.de +M: Sascha Hauer L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained ARM/GLOMATION GESBC9312SX MACHINE SUPPORT -P: Lennert Buytenhek -M: kernel@wantstofly.org +M: Lennert Buytenhek L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained ARM/GUMSTIX MACHINE SUPPORT -P: Steve Sakoman -M: sakoman@gmail.com +M: Steve Sakoman L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained ARM/H4700 (HP IPAQ HX4700) MACHINE SUPPORT -P: Philipp Zabel -M: philipp.zabel@gmail.com +M: Philipp Zabel S: Maintained F: arch/arm/mach-pxa/hx4700.c F: arch/arm/mach-pxa/include/mach/hx4700.h ARM/HP JORNADA 7XX MACHINE SUPPORT -P: Kristoffer Ericson -M: kristoffer.ericson@gmail.com +M: Kristoffer Ericson W: www.jlime.com S: Maintained ARM/INTEL IOP32X ARM ARCHITECTURE -P: Lennert Buytenhek -M: kernel@wantstofly.org -P: Dan Williams -M: dan.j.williams@intel.com +M: Lennert Buytenhek +M: Dan Williams L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Supported ARM/INTEL IOP33X ARM ARCHITECTURE -P: Dan Williams -M: dan.j.williams@intel.com +M: Dan Williams L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Supported ARM/INTEL IOP13XX ARM ARCHITECTURE -P: Lennert Buytenhek -M: kernel@wantstofly.org -P: Dan Williams -M: dan.j.williams@intel.com +M: Lennert Buytenhek +M: Dan Williams L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Supported ARM/INTEL IQ81342EX MACHINE SUPPORT -P: Lennert Buytenhek -M: kernel@wantstofly.org -P: Dan Williams -M: dan.j.williams@intel.com +M: Lennert Buytenhek +M: Dan Williams L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Supported ARM/INTEL IXP2000 ARM ARCHITECTURE -P: Lennert Buytenhek -M: kernel@wantstofly.org +M: Lennert Buytenhek L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained ARM/INTEL IXDP2850 MACHINE SUPPORT -P: Lennert Buytenhek -M: kernel@wantstofly.org +M: Lennert Buytenhek L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained ARM/INTEL IXP23XX ARM ARCHITECTURE -P: Lennert Buytenhek -M: kernel@wantstofly.org +M: Lennert Buytenhek L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained ARM/INTEL XSC3 (MANZANO) ARM CORE -P: Lennert Buytenhek -M: kernel@wantstofly.org -P: Dan Williams -M: dan.j.williams@intel.com +M: Lennert Buytenhek +M: Dan Williams L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Supported ARM/IP FABRICS DOUBLE ESPRESSO MACHINE SUPPORT -P: Lennert Buytenhek -M: kernel@wantstofly.org +M: Lennert Buytenhek L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained ARM/LOGICPD PXA270 MACHINE SUPPORT -P: Lennert Buytenhek -M: kernel@wantstofly.org +M: Lennert Buytenhek L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained ARM/MAGICIAN MACHINE SUPPORT -P: Philipp Zabel -M: philipp.zabel@gmail.com +M: Philipp Zabel S: Maintained ARM/MIOA701 MACHINE SUPPORT -P: Robert Jarzmik -M: robert.jarzmik@free.fr +M: Robert Jarzmik L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) F: arch/arm/mach-pxa/mioa701.c S: Maintained ARM/NEC MOBILEPRO 900/c MACHINE SUPPORT -P: Michael Petchkovsky -M: mkpetch@internode.on.net +M: Michael Petchkovsky S: Maintained ARM/OPENMOKO NEO FREERUNNER (GTA02) MACHINE SUPPORT -P: Nelson Castillo -M: arhuaco@freaks-unidos.net +M: Nelson Castillo L: openmoko-kernel@lists.openmoko.org (subscribers-only) W: http://wiki.openmoko.org/wiki/Neo_FreeRunner S: Supported ARM/TOSA MACHINE SUPPORT -P: Dmitry Eremin-Solenikov -M: dbaryshkov@gmail.com -P: Dirk Opfer -M: dirk@opfer-online.de +M: Dmitry Eremin-Solenikov +M: Dirk Opfer S: Maintained ARM/PALMTX,PALMT5,PALMLD,PALMTE2 SUPPORT -P: Marek Vasut -M: marek.vasut@gmail.com +M: Marek Vasut W: http://hackndev.com S: Maintained ARM/PALM TREO 680 SUPPORT -P: Tomas Cech -M: sleep_walker@suse.cz +M: Tomas Cech W: http://hackndev.com S: Maintained ARM/PALMZ72 SUPPORT -P: Sergey Lapin -M: slapin@ossfans.org +M: Sergey Lapin W: http://hackndev.com S: Maintained ARM/PLEB SUPPORT -P: Peter Chubb -M: pleb@gelato.unsw.edu.au +M: Peter Chubb W: http://www.disy.cse.unsw.edu.au/Hardware/PLEB S: Maintained ARM/PT DIGITAL BOARD PORT -P: Stefan Eletzhofer -M: stefan.eletzhofer@eletztrick.de +M: Stefan Eletzhofer L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) W: http://www.arm.linux.org.uk/ S: Maintained ARM/RADISYS ENP2611 MACHINE SUPPORT -P: Lennert Buytenhek -M: kernel@wantstofly.org +M: Lennert Buytenhek L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained ARM/RISCPC ARCHITECTURE -P: Russell King -M: linux@arm.linux.org.uk +M: Russell King L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) W: http://www.arm.linux.org.uk/ S: Maintained @@ -862,14 +750,12 @@ F: drivers/net/arm/ether* F: drivers/scsi/arm/ ARM/SHARK MACHINE SUPPORT -P: Alexander Schulz -M: alex@shark-linux.de +M: Alexander Schulz W: http://www.shark-linux.de/shark.html S: Maintained ARM/SAMSUNG ARM ARCHITECTURES -P: Ben Dooks -M: ben-linux@fluff.org +M: Ben Dooks L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) W: http://www.fluff.org/ben/linux/ S: Maintained @@ -877,85 +763,73 @@ F: arch/arm/plat-s3c/ F: arch/arm/plat-s3c24xx/ ARM/S3C2410 ARM ARCHITECTURE -P: Ben Dooks -M: ben-linux@fluff.org +M: Ben Dooks L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) W: http://www.fluff.org/ben/linux/ S: Maintained F: arch/arm/mach-s3c2410/ ARM/S3C2440 ARM ARCHITECTURE -P: Ben Dooks -M: ben-linux@fluff.org +M: Ben Dooks L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) W: http://www.fluff.org/ben/linux/ S: Maintained F: arch/arm/mach-s3c2440/ ARM/S3C2442 ARM ARCHITECTURE -P: Ben Dooks -M: ben-linux@fluff.org +M: Ben Dooks L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) W: http://www.fluff.org/ben/linux/ S: Maintained F: arch/arm/mach-s3c2442/ ARM/S3C2443 ARM ARCHITECTURE -P: Ben Dooks -M: ben-linux@fluff.org +M: Ben Dooks L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) W: http://www.fluff.org/ben/linux/ S: Maintained F: arch/arm/mach-s3c2443/ ARM/S3C6400 ARM ARCHITECTURE -P: Ben Dooks -M: ben-linux@fluff.org +M: Ben Dooks L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) W: http://www.fluff.org/ben/linux/ S: Maintained F: arch/arm/mach-s3c6400/ ARM/S3C6410 ARM ARCHITECTURE -P: Ben Dooks -M: ben-linux@fluff.org +M: Ben Dooks L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) W: http://www.fluff.org/ben/linux/ S: Maintained F: arch/arm/mach-s3c6410/ ARM/TECHNOLOGIC SYSTEMS TS7250 MACHINE SUPPORT -P: Lennert Buytenhek -M: kernel@wantstofly.org +M: Lennert Buytenhek L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained ARM/THECUS N2100 MACHINE SUPPORT -P: Lennert Buytenhek -M: kernel@wantstofly.org +M: Lennert Buytenhek L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained ARM/NUVOTON W90X900 ARM ARCHITECTURE -P: Wan ZongShun -M: mcuos.com@gmail.com +M: Wan ZongShun L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) W: http://www.mcuos.com S: Maintained ARM/VFP SUPPORT -P: Russell King -M: linux@arm.linux.org.uk +M: Russell King L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) W: http://www.arm.linux.org.uk/ S: Maintained F: arch/arm/vfp/ ASUS ACPI EXTRAS DRIVER -P: Corentin Chary -M: corentincj@iksaif.net -P: Karol Kozimor -M: sziwan@users.sourceforge.net +M: Corentin Chary +M: Karol Kozimor L: acpi4asus-user@lists.sourceforge.net W: http://acpi4asus.sf.net S: Maintained @@ -963,25 +837,21 @@ F: arch/x86/kernel/acpi/boot.c F: drivers/platform/x86/asus_acpi.c ASUS ASB100 HARDWARE MONITOR DRIVER -P: Mark M. Hoffman -M: mhoffman@lightlink.com +M: "Mark M. Hoffman" L: lm-sensors@lm-sensors.org S: Maintained F: drivers/hwmon/asb100.c ASUS LAPTOP EXTRAS DRIVER -P: Corentin Chary -M: corentincj@iksaif.net +M: Corentin Chary L: acpi4asus-user@lists.sourceforge.net W: http://acpi4asus.sf.net S: Maintained F: drivers/platform/x86/asus-laptop.c ASYNCHRONOUS TRANSFERS/TRANSFORMS (IOAT) API -P: Dan Williams -M: dan.j.williams@intel.com -P: Maciej Sosnowski -M: maciej.sosnowski@intel.com +M: Dan Williams +M: Maciej Sosnowski W: http://sourceforge.net/projects/xscaleiop S: Supported F: Documentation/crypto/async-tx-api.txt @@ -991,64 +861,49 @@ F: include/linux/dmaengine.h F: include/linux/async_tx.h ATA OVER ETHERNET (AOE) DRIVER -P: Ed L. Cashin -M: ecashin@coraid.com +M: "Ed L. Cashin" W: http://www.coraid.com/support/linux S: Supported F: Documentation/aoe/ F: drivers/block/aoe/ ATHEROS ATH5K WIRELESS DRIVER -P: Jiri Slaby -M: jirislaby@gmail.com -P: Nick Kossifidis -M: mickflemm@gmail.com -P: Luis R. Rodriguez -M: lrodriguez@atheros.com -P: Bob Copeland -M: me@bobcopeland.com +M: Jiri Slaby +M: Nick Kossifidis +M: "Luis R. Rodriguez" +M: Bob Copeland L: linux-wireless@vger.kernel.org L: ath5k-devel@lists.ath5k.org S: Maintained F: drivers/net/wireless/ath/ath5k/ ATHEROS ATH9K WIRELESS DRIVER -P: Luis R. Rodriguez -M: lrodriguez@atheros.com -P: Jouni Malinen -M: jmalinen@atheros.com -P: Sujith Manoharan -M: Sujith.Manoharan@atheros.com -P: Vasanthakumar Thiagarajan -M: vasanth@atheros.com -P: Senthil Balasubramanian -M: senthilkumar@atheros.com +M: "Luis R. Rodriguez" +M: Jouni Malinen +M: Sujith Manoharan +M: Vasanthakumar Thiagarajan +M: Senthil Balasubramanian L: linux-wireless@vger.kernel.org L: ath9k-devel@lists.ath9k.org S: Supported F: drivers/net/wireless/ath/ath9k/ ATHEROS AR9170 WIRELESS DRIVER -P: Christian Lamparter -M: chunkeey@web.de +M: Christian Lamparter L: linux-wireless@vger.kernel.org W: http://wireless.kernel.org/en/users/Drivers/ar9170 S: Maintained F: drivers/net/wireless/ath/ar9170/ ATI_REMOTE2 DRIVER -P: Ville Syrjala -M: syrjala@sci.fi +M: Ville Syrjala S: Maintained F: drivers/input/misc/ati_remote2.c ATLX ETHERNET DRIVERS -P: Jay Cliburn -M: jcliburn@gmail.com -P: Chris Snook -M: csnook@redhat.com -P: Jie Yang -M: jie.yang@atheros.com +M: Jay Cliburn +M: Chris Snook +M: Jie Yang L: atl1-devel@lists.sourceforge.net W: http://sourceforge.net/projects/atl1 W: http://atl1.sourceforge.net @@ -1056,8 +911,7 @@ S: Maintained F: drivers/net/atlx/ ATM -P: Chas Williams -M: chas@cmf.nrl.navy.mil +M: Chas Williams L: linux-atm-general@lists.sourceforge.net (subscribers-only) L: netdev@vger.kernel.org W: http://linux-atm.sourceforge.net @@ -1066,8 +920,7 @@ F: drivers/atm/ F: include/linux/atm* ATMEL AT91 MCI DRIVER -P: Nicolas Ferre -M: nicolas.ferre@atmel.com +M: Nicolas Ferre L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) W: http://www.atmel.com/products/AT91/ W: http://www.at91.com/ @@ -1075,49 +928,42 @@ S: Maintained F: drivers/mmc/host/at91_mci.c ATMEL AT91 / AT32 MCI DRIVER -P: Nicolas Ferre -M: nicolas.ferre@atmel.com +M: Nicolas Ferre S: Maintained F: drivers/mmc/host/atmel-mci.c F: drivers/mmc/host/atmel-mci-regs.h ATMEL AT91 / AT32 SERIAL DRIVER -P: Haavard Skinnemoen -M: hskinnemoen@atmel.com +M: Haavard Skinnemoen S: Supported F: drivers/serial/atmel_serial.c ATMEL LCDFB DRIVER -P: Nicolas Ferre -M: nicolas.ferre@atmel.com +M: Nicolas Ferre L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers) S: Maintained F: drivers/video/atmel_lcdfb.c F: include/video/atmel_lcdc.h ATMEL MACB ETHERNET DRIVER -P: Haavard Skinnemoen -M: hskinnemoen@atmel.com +M: Haavard Skinnemoen S: Supported F: drivers/net/macb.* ATMEL SPI DRIVER -P: Haavard Skinnemoen -M: hskinnemoen@atmel.com +M: Haavard Skinnemoen S: Supported F: drivers/spi/atmel_spi.* ATMEL USBA UDC DRIVER -P: Haavard Skinnemoen -M: hskinnemoen@atmel.com +M: Haavard Skinnemoen L: kernel@avr32linux.org W: http://avr32linux.org/twiki/bin/view/Main/AtmelUsbDeviceDriver S: Supported F: drivers/usb/gadget/atmel_usba_udc.* ATMEL WIRELESS DRIVER -P: Simon Kelley -M: simon@thekelleys.org.uk +M: Simon Kelley L: linux-wireless@vger.kernel.org W: http://www.thekelleys.org.uk/atmel W: http://atmelwlandriver.sourceforge.net/ @@ -1125,10 +971,8 @@ S: Maintained F: drivers/net/wireless/atmel* AUDIT SUBSYSTEM -P: Al Viro -M: viro@zeniv.linux.org.uk -P: Eric Paris -M: eparis@redhat.com +M: Al Viro +M: Eric Paris L: linux-audit@redhat.com (subscribers-only) W: http://people.redhat.com/sgrubb/audit/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current.git @@ -1137,8 +981,7 @@ F: include/linux/audit.h F: kernel/audit* AUXILIARY DISPLAY DRIVERS -P: Miguel Ojeda Sandonis -M: miguel.ojeda.sandonis@gmail.com +M: Miguel Ojeda Sandonis W: http://miguelojeda.es/auxdisplay.htm W: http://jair.lab.fi.uva.es/~migojed/auxdisplay.htm S: Maintained @@ -1146,8 +989,7 @@ F: drivers/auxdisplay/ F: include/linux/cfag12864b.h AVR32 ARCHITECTURE -P: Haavard Skinnemoen -M: hskinnemoen@atmel.com +M: Haavard Skinnemoen W: http://www.atmel.com/products/AVR32/ W: http://avr32linux.org/ W: http://avrfreaks.net/ @@ -1155,14 +997,12 @@ S: Supported F: arch/avr32/ AVR32/AT32AP MACHINE SUPPORT -P: Haavard Skinnemoen -M: hskinnemoen@atmel.com +M: Haavard Skinnemoen S: Supported F: arch/avr32/mach-at32ap/ AX.25 NETWORK LAYER -P: Ralf Baechle -M: ralf@linux-mips.org +M: Ralf Baechle L: linux-hams@vger.kernel.org W: http://www.linux-ax25.org/ S: Maintained @@ -1171,128 +1011,110 @@ F: include/net/ax25.h F: net/ax25/ B43 WIRELESS DRIVER -P: Michael Buesch -M: mb@bu3sch.de -P: Stefano Brivio -M: stefano.brivio@polimi.it +M: Michael Buesch +M: Stefano Brivio L: linux-wireless@vger.kernel.org W: http://linuxwireless.org/en/users/Drivers/b43 S: Maintained F: drivers/net/wireless/b43/ B43LEGACY WIRELESS DRIVER -P: Larry Finger -M: Larry.Finger@lwfinger.net -P: Stefano Brivio -M: stefano.brivio@polimi.it +M: Larry Finger +M: Stefano Brivio L: linux-wireless@vger.kernel.org W: http://linuxwireless.org/en/users/Drivers/b43 S: Maintained F: drivers/net/wireless/b43legacy/ BACKLIGHT CLASS/SUBSYSTEM -P: Richard Purdie -M: rpurdie@rpsys.net +M: Richard Purdie S: Maintained F: drivers/video/backlight/ F: include/linux/backlight.h BAYCOM/HDLCDRV DRIVERS FOR AX.25 -P: Thomas Sailer -M: t.sailer@alumni.ethz.ch +M: Thomas Sailer L: linux-hams@vger.kernel.org W: http://www.baycom.org/~tom/ham/ham.html S: Maintained F: drivers/net/hamradio/baycom* BEFS FILE SYSTEM -P: Sergey S. Kostyliov -M: rathamahata@php4.ru +M: "Sergey S. Kostyliov" S: Maintained F: Documentation/filesystems/befs.txt F: fs/befs/ BFS FILE SYSTEM -P: Tigran A. Aivazian -M: tigran@aivazian.fsnet.co.uk +M: "Tigran A. Aivazian" S: Maintained F: Documentation/filesystems/bfs.txt F: fs/bfs/ F: include/linux/bfs_fs.h BLACKFIN ARCHITECTURE -P: Mike Frysinger -M: vapier@gentoo.org +M: Mike Frysinger L: uclinux-dist-devel@blackfin.uclinux.org W: http://blackfin.uclinux.org S: Supported F: arch/blackfin/ BLACKFIN EMAC DRIVER -P: Michael Hennerich -M: michael.hennerich@analog.com +M: Michael Hennerich L: uclinux-dist-devel@blackfin.uclinux.org W: http://blackfin.uclinux.org S: Supported F: drivers/net/bfin_mac.* BLACKFIN RTC DRIVER -P: Mike Frysinger -M: vapier.adi@gmail.com +M: Mike Frysinger L: uclinux-dist-devel@blackfin.uclinux.org W: http://blackfin.uclinux.org S: Supported F: drivers/rtc/rtc-bfin.c BLACKFIN SERIAL DRIVER -P: Sonic Zhang -M: sonic.zhang@analog.com +M: Sonic Zhang L: uclinux-dist-devel@blackfin.uclinux.org W: http://blackfin.uclinux.org S: Supported F: drivers/serial/bfin_5xx.c BLACKFIN WATCHDOG DRIVER -P: Mike Frysinger -M: vapier.adi@gmail.com +M: Mike Frysinger L: uclinux-dist-devel@blackfin.uclinux.org W: http://blackfin.uclinux.org S: Supported F: drivers/watchdog/bfin_wdt.c BLACKFIN I2C TWI DRIVER -P: Sonic Zhang -M: sonic.zhang@analog.com +M: Sonic Zhang L: uclinux-dist-devel@blackfin.uclinux.org W: http://blackfin.uclinux.org/ S: Supported F: drivers/i2c/busses/i2c-bfin-twi.c BLOCK LAYER -P: Jens Axboe -M: axboe@kernel.dk +M: Jens Axboe T: git git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-2.6-block.git S: Maintained F: block/ BLOCK2MTD DRIVER -P: Joern Engel -M: joern@lazybastard.org +M: Joern Engel L: linux-mtd@lists.infradead.org S: Maintained F: drivers/mtd/devices/block2mtd.c BLUETOOTH DRIVERS -P: Marcel Holtmann -M: marcel@holtmann.org +M: Marcel Holtmann L: linux-bluetooth@vger.kernel.org W: http://www.bluez.org/ S: Maintained F: drivers/bluetooth/ BLUETOOTH SUBSYSTEM -P: Marcel Holtmann -M: marcel@holtmann.org +M: Marcel Holtmann L: linux-bluetooth@vger.kernel.org W: http://www.bluez.org/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/holtmann/bluetooth-2.6.git @@ -1301,8 +1123,7 @@ F: net/bluetooth/ F: include/net/bluetooth/ BONDING DRIVER -P: Jay Vosburgh -M: fubar@us.ibm.com +M: Jay Vosburgh L: bonding-devel@lists.sourceforge.net W: http://sourceforge.net/projects/bonding/ S: Supported @@ -1310,54 +1131,46 @@ F: drivers/net/bonding/ F: include/linux/if_bonding.h BROADCOM B44 10/100 ETHERNET DRIVER -P: Gary Zambrano -M: zambrano@broadcom.com +M: Gary Zambrano L: netdev@vger.kernel.org S: Supported F: drivers/net/b44.* BROADCOM BNX2 GIGABIT ETHERNET DRIVER -P: Michael Chan -M: mchan@broadcom.com +M: Michael Chan L: netdev@vger.kernel.org S: Supported F: drivers/net/bnx2.* F: drivers/net/bnx2_* BROADCOM BNX2X 10 GIGABIT ETHERNET DRIVER -P: Eilon Greenstein -M: eilong@broadcom.com +M: Eilon Greenstein L: netdev@vger.kernel.org S: Supported F: drivers/net/bnx2x* BROADCOM TG3 GIGABIT ETHERNET DRIVER -P: Matt Carlson -M: mcarlson@broadcom.com -P: Michael Chan -M: mchan@broadcom.com +M: Matt Carlson +M: Michael Chan L: netdev@vger.kernel.org S: Supported F: drivers/net/tg3.* BSG (block layer generic sg v4 driver) -P: FUJITA Tomonori -M: fujita.tomonori@lab.ntt.co.jp +M: FUJITA Tomonori L: linux-scsi@vger.kernel.org S: Supported F: block/bsg.c F: include/linux/bsg.h BT8XXGPIO DRIVER -P: Michael Buesch -M: mb@bu3sch.de +M: Michael Buesch W: http://bu3sch.de/btgpio.php S: Maintained F: drivers/gpio/bt8xxgpio.c BTRFS FILE SYSTEM -P: Chris Mason -M: chris.mason@oracle.com +M: Chris Mason L: linux-btrfs@vger.kernel.org W: http://btrfs.wiki.kernel.org/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable.git @@ -1366,8 +1179,7 @@ F: Documentation/filesystems/btrfs.txt F: fs/btrfs/ BTTV VIDEO4LINUX DRIVER -P: Mauro Carvalho Chehab -M: mchehab@infradead.org +M: Mauro Carvalho Chehab L: linux-media@vger.kernel.org W: http://linuxtv.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git @@ -1376,16 +1188,14 @@ F: Documentation/video4linux/bttv/ F: drivers/media/video/bt8xx/bttv* CACHEFILES: FS-CACHE BACKEND FOR CACHING ON MOUNTED FILESYSTEMS -P: David Howells -M: dhowells@redhat.com +M: David Howells L: linux-cachefs@redhat.com S: Supported F: Documentation/filesystems/caching/cachefiles.txt F: fs/cachefiles/ CAFE CMOS INTEGRATED CAMERA CONTROLLER DRIVER -P: Jonathan Corbet -M: corbet@lwn.net +M: Jonathan Corbet L: linux-media@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git S: Maintained @@ -1393,10 +1203,8 @@ F: Documentation/video4linux/cafe_ccic F: drivers/media/video/cafe_ccic* CALGARY x86-64 IOMMU -P: Muli Ben-Yehuda -M: muli@il.ibm.com -P: Jon D. Mason -M: jdmason@kudzu.us +M: Muli Ben-Yehuda +M: "Jon D. Mason" L: discuss@x86-64.org S: Maintained F: arch/x86/kernel/pci-calgary_64.c @@ -1405,10 +1213,8 @@ F: arch/x86/include/asm/calgary.h F: arch/x86/include/asm/tce.h CAN NETWORK LAYER -P: Urs Thuermann -M: urs.thuermann@volkswagen.de -P: Oliver Hartkopp -M: oliver.hartkopp@volkswagen.de +M: Urs Thuermann +M: Oliver Hartkopp L: socketcan-core@lists.berlios.de (subscribers-only) W: http://developer.berlios.de/projects/socketcan/ S: Maintained @@ -1417,15 +1223,13 @@ F: include/linux/can/ F: include/linux/can.h CAN NETWORK DRIVERS -P: Wolfgang Grandegger -M: wg@grandegger.com +M: Wolfgang Grandegger L: socketcan-core@lists.berlios.de (subscribers-only) W: http://developer.berlios.de/projects/socketcan/ S: Maintained CELL BROADBAND ENGINE ARCHITECTURE -P: Arnd Bergmann -M: arnd@arndb.de +M: Arnd Bergmann L: linuxppc-dev@ozlabs.org L: cbe-oss-dev@ozlabs.org W: http://www.ibm.com/developerworks/power/cell/ @@ -1436,8 +1240,7 @@ F: arch/powerpc/oprofile/*cell* F: arch/powerpc/platforms/cell/ CERTIFIED WIRELESS USB (WUSB) SUBSYSTEM: -P: David Vrabel -M: david.vrabel@csr.com +M: David Vrabel L: linux-usb@vger.kernel.org S: Supported F: Documentation/usb/WUSB-Design-overview.txt @@ -1446,8 +1249,7 @@ F: drivers/usb/wusbcore/ F: include/linux/usb/wusb* CFAG12864B LCD DRIVER -P: Miguel Ojeda Sandonis -M: miguel.ojeda.sandonis@gmail.com +M: Miguel Ojeda Sandonis W: http://miguelojeda.es/auxdisplay.htm W: http://jair.lab.fi.uva.es/~migojed/auxdisplay.htm S: Maintained @@ -1455,8 +1257,7 @@ F: drivers/auxdisplay/cfag12864b.c F: include/linux/cfag12864b.h CFAG12864BFB LCD FRAMEBUFFER DRIVER -P: Miguel Ojeda Sandonis -M: miguel.ojeda.sandonis@gmail.com +M: Miguel Ojeda Sandonis W: http://miguelojeda.es/auxdisplay.htm W: http://jair.lab.fi.uva.es/~migojed/auxdisplay.htm S: Maintained @@ -1464,8 +1265,7 @@ F: drivers/auxdisplay/cfag12864bfb.c F: include/linux/cfag12864b.h CFG80211 and NL80211 -P: Johannes Berg -M: johannes@sipsolutions.net +M: Johannes Berg L: linux-wireless@vger.kernel.org S: Maintained F: include/linux/nl80211.h @@ -1474,57 +1274,47 @@ F: net/wireless/* X: net/wireless/wext* CHECKPATCH -P: Andy Whitcroft -M: apw@canonical.com +M: Andy Whitcroft S: Supported F: scripts/checkpatch.pl CISCO 10G ETHERNET DRIVER -P: Scott Feldman -M: scofeldm@cisco.com -P: Joe Eykholt -M: jeykholt@cisco.com +M: Scott Feldman +M: Joe Eykholt S: Supported F: drivers/net/enic/ CIRRUS LOGIC EP93XX ETHERNET DRIVER -P: Lennert Buytenhek -M: kernel@wantstofly.org +M: Lennert Buytenhek L: netdev@vger.kernel.org S: Maintained F: drivers/net/arm/ep93xx_eth.c CIRRUS LOGIC EP93XX OHCI USB HOST DRIVER -P: Lennert Buytenhek -M: kernel@wantstofly.org +M: Lennert Buytenhek L: linux-usb@vger.kernel.org S: Maintained F: drivers/usb/host/ohci-ep93xx.c CIRRUS LOGIC CS4270 SOUND DRIVER -P: Timur Tabi -M: timur@freescale.com +M: Timur Tabi L: alsa-devel@alsa-project.org (moderated for non-subscribers) S: Supported F: sound/soc/codecs/cs4270* CLK API -P: Russell King -M: linux@arm.linux.org.uk +M: Russell King F: include/linux/clk.h CISCO FCOE HBA DRIVER -P: Abhijeet Joglekar -M: abjoglek@cisco.com -P: Joe Eykholt -M: jeykholt@cisco.com +M: Abhijeet Joglekar +M: Joe Eykholt L: linux-scsi@vger.kernel.org S: Supported F: drivers/scsi/fnic/ CODA FILE SYSTEM -P: Jan Harkes -M: jaharkes@cs.cmu.edu +M: Jan Harkes M: coda@cs.cmu.edu L: codalist@coda.cs.cmu.edu W: http://www.coda.cs.cmu.edu/ @@ -1534,8 +1324,7 @@ F: fs/coda/ F: include/linux/coda*.h COMMON INTERNET FILE SYSTEM (CIFS) -P: Steve French -M: sfrench@samba.org +M: Steve French L: linux-cifs-client@lists.samba.org L: samba-technical@lists.samba.org W: http://linux-cifs.samba.org/ @@ -1545,67 +1334,57 @@ F: Documentation/filesystems/cifs.txt F: fs/cifs/ COMPACTPCI HOTPLUG CORE -P: Scott Murray -M: scott@spiteful.org +M: Scott Murray L: linux-pci@vger.kernel.org S: Maintained F: drivers/pci/hotplug/cpci_hotplug* COMPACTPCI HOTPLUG ZIATECH ZT5550 DRIVER -P: Scott Murray -M: scott@spiteful.org +M: Scott Murray L: linux-pci@vger.kernel.org S: Maintained F: drivers/pci/hotplug/cpcihp_zt5550.* COMPACTPCI HOTPLUG GENERIC DRIVER -P: Scott Murray -M: scott@spiteful.org +M: Scott Murray L: linux-pci@vger.kernel.org S: Maintained F: drivers/pci/hotplug/cpcihp_generic.c COMPAL LAPTOP SUPPORT -P: Cezary Jackiewicz -M: cezary.jackiewicz@gmail.com +M: Cezary Jackiewicz S: Maintained F: drivers/platform/x86/compal-laptop.c COMPUTONE INTELLIPORT MULTIPORT CARD -P: Michael H. Warfield -M: mhw@wittsend.com +M: "Michael H. Warfield" W: http://www.wittsend.com/computone.html S: Maintained F: Documentation/serial/computone.txt F: drivers/char/ip2/ CONEXANT ACCESSRUNNER USB DRIVER -P: Simon Arlott -M: cxacru@fire.lp0.eu +M: Simon Arlott L: accessrunner-general@lists.sourceforge.net W: http://accessrunner.sourceforge.net/ S: Maintained F: drivers/usb/atm/cxacru.c CONFIGFS -P: Joel Becker -M: joel.becker@oracle.com +M: Joel Becker S: Supported F: fs/configfs/ F: include/linux/configfs.h CONNECTOR -P: Evgeniy Polyakov -M: zbr@ioremap.net +M: Evgeniy Polyakov L: netdev@vger.kernel.org S: Maintained F: drivers/connector/ CONTROL GROUPS (CGROUPS) -P: Paul Menage -M: menage@google.com -P: Li Zefan -M: lizf@cn.fujitsu.com +M: Paul Menage +M: Li Zefan L: containers@lists.linux-foundation.org S: Maintained F: include/linux/cgroup* @@ -1613,30 +1392,26 @@ F: kernel/cgroup* F: mm/*cgroup* CORETEMP HARDWARE MONITORING DRIVER -P: Rudolf Marek -M: r.marek@assembler.cz +M: Rudolf Marek L: lm-sensors@lm-sensors.org S: Maintained F: Documentation/hwmon/coretemp F: drivers/hwmon/coretemp.c COSA/SRP SYNC SERIAL DRIVER -P: Jan "Yenya" Kasprzak -M: kas@fi.muni.cz +M: Jan "Yenya" Kasprzak W: http://www.fi.muni.cz/~kas/cosa/ S: Maintained F: drivers/net/wan/cosa* CPMAC ETHERNET DRIVER -P: Florian Fainelli -M: florian@openwrt.org +M: Florian Fainelli L: netdev@vger.kernel.org S: Maintained F: drivers/net/cpmac.c CPU FREQUENCY DRIVERS -P: Dave Jones -M: davej@redhat.com +M: Dave Jones L: cpufreq@vger.kernel.org W: http://www.codemonkey.org.uk/projects/cpufreq/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq.git @@ -1646,15 +1421,13 @@ F: drivers/cpufreq/ F: include/linux/cpufreq.h CPUID/MSR DRIVER -P: H. Peter Anvin -M: hpa@zytor.com +M: "H. Peter Anvin" S: Maintained F: arch/x86/kernel/cpuid.c F: arch/x86/kernel/msr.c CPUSETS -P: Paul Menage -M: menage@google.com +M: Paul Menage W: http://www.bullopensource.org/cpuset/ W: http://oss.sgi.com/projects/cpusets/ S: Supported @@ -1669,20 +1442,16 @@ F: Documentation/filesystems/cramfs.txt F: fs/cramfs/ CRIS PORT -P: Mikael Starvik -M: starvik@axis.com -P: Jesper Nilsson -M: jesper.nilsson@axis.com +M: Mikael Starvik +M: Jesper Nilsson L: linux-cris-kernel@axis.com W: http://developer.axis.com S: Maintained F: arch/cris/ CRYPTO API -P: Herbert Xu -M: herbert@gondor.apana.org.au -P: David S. Miller -M: davem@davemloft.net +M: Herbert Xu +M: "David S. Miller" L: linux-crypto@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6.git S: Maintained @@ -1693,22 +1462,18 @@ F: drivers/crypto/ F: include/crypto/ CRYPTOGRAPHIC RANDOM NUMBER GENERATOR -P: Neil Horman -M: nhorman@tuxdriver.com +M: Neil Horman L: linux-crypto@vger.kernel.org S: Maintained CS5535 Audio ALSA driver -P: Jaya Kumar -M: jayakumar.alsa@gmail.com +M: Jaya Kumar S: Maintained F: sound/pci/cs5535audio/ CX18 VIDEO4LINUX DRIVER -P: Hans Verkuil -M: hverkuil@xs4all.nl -P: Andy Walls -M: awalls@radix.net +M: Hans Verkuil +M: Andy Walls L: ivtv-devel@ivtvdriver.org L: linux-media@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git @@ -1719,32 +1484,28 @@ F: Documentation/video4linux/cx18.txt F: drivers/media/video/cx18/ CXGB3 ETHERNET DRIVER (CXGB3) -P: Divy Le Ray -M: divy@chelsio.com +M: Divy Le Ray L: netdev@vger.kernel.org W: http://www.chelsio.com S: Supported F: drivers/net/cxgb3/ CXGB3 IWARP RNIC DRIVER (IW_CXGB3) -P: Steve Wise -M: swise@chelsio.com +M: Steve Wise L: general@lists.openfabrics.org W: http://www.openfabrics.org S: Supported F: drivers/infiniband/hw/cxgb3/ CYBERPRO FB DRIVER -P: Russell King -M: linux@arm.linux.org.uk +M: Russell King L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) W: http://www.arm.linux.org.uk/ S: Maintained F: drivers/video/cyber2000fb.* CYCLADES 2X SYNC CARD DRIVER -P: Arnaldo Carvalho de Melo -M: acme@ghostprotocols.net +M: Arnaldo Carvalho de Melo W: http://oops.ghostprotocols.net:81/blog S: Maintained F: drivers/net/wan/cycx* @@ -1761,8 +1522,7 @@ S: Orphan F: drivers/net/wan/pc300* DAMA SLAVE for AX.25 -P: Joerg Reuter -M: jreuter@yaina.de +M: Joerg Reuter W: http://yaina.de/jreuter/ W: http://www.qsl.net/dl1bke/ L: linux-hams@vger.kernel.org @@ -1776,29 +1536,23 @@ F: net/ax25/ax25_timer.c F: net/ax25/sysctl_net_ax25.c DAVICOM FAST ETHERNET (DMFE) NETWORK DRIVER -P: Tobias Ringstrom -M: tori@unhappy.mine.nu +M: Tobias Ringstrom L: netdev@vger.kernel.org S: Maintained F: Documentation/networking/dmfe.txt F: drivers/net/tulip/dmfe.c DC390/AM53C974 SCSI driver -P: Kurt Garloff -M: garloff@suse.de +M: Kurt Garloff W: http://www.garloff.de/kurt/linux/dc390/ -P: Guennadi Liakhovetski -M: g.liakhovetski@gmx.de +M: Guennadi Liakhovetski S: Maintained F: drivers/scsi/tmscsim.* DC395x SCSI driver -P: Oliver Neukum -M: oliver@neukum.name -P: Ali Akcaagac -M: aliakc@web.de -P: Jamie Lenehan -M: lenehan@twibble.org +M: Oliver Neukum +M: Ali Akcaagac +M: Jamie Lenehan W: http://twibble.org/dist/dc395x/ L: dc395x@twibble.org L: http://lists.twibble.org/mailman/listinfo/dc395x/ @@ -1807,8 +1561,7 @@ F: Documentation/scsi/dc395x.txt F: drivers/scsi/dc395x.* DCCP PROTOCOL -P: Arnaldo Carvalho de Melo -M: acme@ghostprotocols.net +M: Arnaldo Carvalho de Melo L: dccp@vger.kernel.org W: http://linux-net.osdl.org/index.php/DCCP S: Maintained @@ -1817,8 +1570,7 @@ F: include/linux/tfrc.h F: net/dccp/ DECnet NETWORK LAYER -P: Christine Caulfield -M: christine.caulfield@googlemail.com +M: Christine Caulfield W: http://linux-decnet.sourceforge.net L: linux-decnet-user@lists.sourceforge.net S: Maintained @@ -1826,40 +1578,34 @@ F: Documentation/networking/decnet.txt F: net/decnet/ DEFXX FDDI NETWORK DRIVER -P: Maciej W. Rozycki -M: macro@linux-mips.org +M: "Maciej W. Rozycki" S: Maintained F: drivers/net/defxx.* DELL LAPTOP DRIVER -P: Matthew Garrett -M: mjg59@srcf.ucam.org +M: Matthew Garrett S: Maintained F: drivers/platform/x86/dell-laptop.c DELL LAPTOP SMM DRIVER -P: Massimo Dal Zotto -M: dz@debian.org +M: Massimo Dal Zotto W: http://www.debian.org/~dz/i8k/ S: Maintained F: drivers/char/i8k.c F: include/linux/i8k.h DELL SYSTEMS MANAGEMENT BASE DRIVER (dcdbas) -P: Doug Warzecha -M: Douglas_Warzecha@dell.com +M: Doug Warzecha S: Maintained F: Documentation/dcdbas.txt F: drivers/firmware/dcdbas.* DELL WMI EXTRAS DRIVER -P: Matthew Garrett -M: mjg59@srcf.ucam.org +M: Matthew Garrett S: Maintained DEVICE NUMBER REGISTRY -P: Torben Mathiasen -M: device@lanana.org +M: Torben Mathiasen W: http://lanana.org/docs/device-list/index.html S: Maintained @@ -1874,8 +1620,7 @@ F: include/linux/device-mapper.h F: include/linux/dm-*.h DIGI INTL. EPCA DRIVER -P: Digi International, Inc -M: Eng.Linux@digi.com +M: "Digi International, Inc" L: Eng.Linux@digi.com W: http://www.digi.com S: Orphan @@ -1884,34 +1629,29 @@ F: drivers/char/epca* F: drivers/char/digi* DIRECTORY NOTIFICATION (DNOTIFY) -P: Eric Paris -M: eparis@parisplace.org +M: Eric Paris S: Maintained F: Documentation/filesystems/dnotify.txt F: fs/notify/dnotify/ F: include/linux/dnotify.h DISK GEOMETRY AND PARTITION HANDLING -P: Andries Brouwer -M: aeb@cwi.nl +M: Andries Brouwer W: http://www.win.tue.nl/~aeb/linux/Large-Disk.html W: http://www.win.tue.nl/~aeb/linux/zip/zip-1.html W: http://www.win.tue.nl/~aeb/partitions/partition_types-1.html S: Maintained DISKQUOTA -P: Jan Kara -M: jack@suse.cz +M: Jan Kara S: Maintained F: Documentation/filesystems/quota.txt F: fs/quota/ F: include/linux/quota*.h DISTRIBUTED LOCK MANAGER (DLM) -P: Christine Caulfield -M: ccaulfie@redhat.com -P: David Teigland -M: teigland@redhat.com +M: Christine Caulfield +M: David Teigland L: cluster-devel@redhat.com W: http://sources.redhat.com/cluster/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm.git @@ -1919,52 +1659,44 @@ S: Supported F: fs/dlm/ DMA GENERIC OFFLOAD ENGINE SUBSYSTEM -P: Maciej Sosnowski -M: maciej.sosnowski@intel.com -P: Dan Williams -M: dan.j.williams@intel.com +M: Maciej Sosnowski +M: Dan Williams S: Supported F: drivers/dma/ F: include/linux/dma* DME1737 HARDWARE MONITOR DRIVER -P: Juerg Haefliger -M: juergh@gmail.com +M: Juerg Haefliger L: lm-sensors@lm-sensors.org S: Maintained F: Documentation/hwmon/dme1737 F: drivers/hwmon/dme1737.c DOCBOOK FOR DOCUMENTATION -P: Randy Dunlap -M: rdunlap@xenotime.net +M: Randy Dunlap S: Maintained DOCKING STATION DRIVER -P: Shaohua Li -M: shaohua.li@intel.com +M: Shaohua Li L: linux-acpi@vger.kernel.org S: Supported F: drivers/acpi/dock.c DOCUMENTATION -P: Randy Dunlap -M: rdunlap@xenotime.net +M: Randy Dunlap L: linux-doc@vger.kernel.org S: Maintained F: Documentation/ DOUBLETALK DRIVER -P: James R. Van Zandt -M: jrv@vanzandt.mv.com +M: "James R. Van Zandt" L: blinux-list@redhat.com S: Maintained F: drivers/char/dtlk.c F: include/linux/dtlk.h DPT_I2O SCSI RAID DRIVER -P: Adaptec OEM Raid Solutions -M: aacraid@adaptec.com +M: Adaptec OEM Raid Solutions L: linux-scsi@vger.kernel.org W: http://www.adaptec.com/ S: Maintained @@ -1972,8 +1704,7 @@ F: drivers/scsi/dpt* F: drivers/scsi/dpt/ DRIVER CORE, KOBJECTS, AND SYSFS -P: Greg Kroah-Hartman -M: gregkh@suse.de +M: Greg Kroah-Hartman T: quilt kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/ S: Supported F: Documentation/kobject.txt @@ -1983,52 +1714,45 @@ F: include/linux/kobj* F: lib/kobj* DRM DRIVERS -P: David Airlie -M: airlied@linux.ie +M: David Airlie L: dri-devel@lists.sourceforge.net T: git git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6.git S: Maintained F: drivers/gpu/drm/ DSCC4 DRIVER -P: Francois Romieu -M: romieu@fr.zoreil.com +M: Francois Romieu L: netdev@vger.kernel.org S: Maintained F: drivers/net/wan/dscc4.c DZ DECSTATION DZ11 SERIAL DRIVER -P: Maciej W. Rozycki -M: macro@linux-mips.org +M: "Maciej W. Rozycki" S: Maintained F: drivers/serial/dz.* EATA-DMA SCSI DRIVER -P: Michael Neuffer -M: mike@i-Connect.Net +M: Michael Neuffer L: linux-eata@i-connect.net L: linux-scsi@vger.kernel.org S: Maintained F: drivers/scsi/eata* EATA ISA/EISA/PCI SCSI DRIVER -P: Dario Ballabio -M: ballabio_dario@emc.com +M: Dario Ballabio L: linux-scsi@vger.kernel.org S: Maintained F: drivers/scsi/eata.c EATA-PIO SCSI DRIVER -P: Michael Neuffer -M: mike@i-Connect.Net +M: Michael Neuffer L: linux-eata@i-connect.net L: linux-scsi@vger.kernel.org S: Maintained F: drivers/scsi/eata_pio.* EBTABLES -P: Bart De Schuymer -M: bart.de.schuymer@pandora.be +M: Bart De Schuymer L: ebtables-user@lists.sourceforge.net L: ebtables-devel@lists.sourceforge.net W: http://ebtables.sourceforge.net/ @@ -2037,10 +1761,8 @@ F: include/linux/netfilter_bridge/ebt_*.h F: net/bridge/netfilter/ebt*.c ECRYPT FILE SYSTEM -P: Tyler Hicks -M: tyhicks@linux.vnet.ibm.com -P: Dustin Kirkland -M: kirkland@canonical.com +M: Tyler Hicks +M: Dustin Kirkland L: ecryptfs-devel@lists.launchpad.net W: https://launchpad.net/ecryptfs S: Supported @@ -2048,8 +1770,7 @@ F: Documentation/filesystems/ecryptfs.txt F: fs/ecryptfs/ EDAC-CORE -P: Doug Thompson -M: dougthompson@xmission.com +M: Doug Thompson L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers) W: bluesmoke.sourceforge.net S: Supported @@ -2058,94 +1779,80 @@ F: drivers/edac/edac_* F: include/linux/edac.h EDAC-AMD64 -P: Doug Thompson -M: dougthompson@xmission.com -P: Borislav Petkov -M: borislav.petkov@amd.com +M: Doug Thompson +M: Borislav Petkov L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers) W: bluesmoke.sourceforge.net S: Supported F: drivers/edac/amd64_edac* EDAC-E752X -P: Mark Gross -M: mark.gross@intel.com -P: Doug Thompson -M: dougthompson@xmission.com +M: Mark Gross +M: Doug Thompson L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers) W: bluesmoke.sourceforge.net S: Maintained F: drivers/edac/e752x_edac.c EDAC-E7XXX -P: Doug Thompson -M: dougthompson@xmission.com +M: Doug Thompson L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers) W: bluesmoke.sourceforge.net S: Maintained F: drivers/edac/e7xxx_edac.c EDAC-I82443BXGX -P: Tim Small -M: tim@buttersideup.com +M: Tim Small L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers) W: bluesmoke.sourceforge.net S: Maintained F: drivers/edac/i82443bxgx_edac.c EDAC-I3000 -P: Jason Uhlenkott -M: juhlenko@akamai.com +M: Jason Uhlenkott L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers) W: bluesmoke.sourceforge.net S: Maintained F: drivers/edac/i3000_edac.c EDAC-I5000 -P: Doug Thompson -M: dougthompson@xmission.com +M: Doug Thompson L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers) W: bluesmoke.sourceforge.net S: Maintained F: drivers/edac/i5000_edac.c EDAC-I5400 -P: Mauro Carvalho Chehab -M: mchehab@redhat.com +M: Mauro Carvalho Chehab L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers) W: bluesmoke.sourceforge.net S: Maintained F: drivers/edac/i5400_edac.c EDAC-I82975X -P: Ranganathan Desikan -M: ravi@jetztechnologies.com -P: Arvind R. -M: arvind@jetztechnologies.com +M: Ranganathan Desikan +M: "Arvind R." L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers) W: bluesmoke.sourceforge.net S: Maintained F: drivers/edac/i82975x_edac.c EDAC-PASEMI -P: Egor Martovetsky -M: egor@pasemi.com +M: Egor Martovetsky L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers) W: bluesmoke.sourceforge.net S: Maintained F: drivers/edac/pasemi_edac.c EDAC-R82600 -P: Tim Small -M: tim@buttersideup.com +M: Tim Small L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers) W: bluesmoke.sourceforge.net S: Maintained F: drivers/edac/r82600_edac.c EEEPC LAPTOP EXTRAS DRIVER -P: Corentin Chary -M: corentincj@iksaif.net +M: Corentin Chary L: acpi4asus-user@lists.sourceforge.net W: http://acpi4asus.sf.net S: Maintained @@ -2157,65 +1864,53 @@ S: Orphan F: fs/efs/ EHCA (IBM GX bus InfiniBand adapter) DRIVER -P: Hoang-Nam Nguyen -M: hnguyen@de.ibm.com -P: Christoph Raisch -M: raisch@de.ibm.com +M: Hoang-Nam Nguyen +M: Christoph Raisch L: general@lists.openfabrics.org S: Supported F: drivers/infiniband/hw/ehca/ EMBEDDED LINUX -P: Paul Gortmaker -M: paul.gortmaker@windriver.com -P: Matt Mackall -M: mpm@selenic.com -P: David Woodhouse -M: dwmw2@infradead.org +M: Paul Gortmaker +M: Matt Mackall +M: David Woodhouse L: linux-embedded@vger.kernel.org S: Maintained EMULEX LPFC FC SCSI DRIVER -P: James Smart -M: james.smart@emulex.com +M: James Smart L: linux-scsi@vger.kernel.org W: http://sourceforge.net/projects/lpfcxxxx S: Supported F: drivers/scsi/lpfc/ ENE CB710 FLASH CARD READER DRIVER -P: Michał Mirosław -M: mirq-linux@rere.qmqm.pl +M: Michał Mirosław S: Maintained F: drivers/misc/cb710/ F: drivers/mmc/host/cb710-mmc.* F: include/linux/cb710.h EPSON 1355 FRAMEBUFFER DRIVER -P: Christopher Hoover -M: ch@murgatroid.com -P: Christopher Hoover -M: ch@hpl.hp.com +M: Christopher Hoover +M: Christopher Hoover S: Maintained F: drivers/video/epson1355fb.c EPSON S1D13XXX FRAMEBUFFER DRIVER -P: Kristoffer Ericson -M: kristoffer.ericson@gmail.com +M: Kristoffer Ericson S: Maintained F: drivers/video/s1d13xxxfb.c F: include/video/s1d13xxxfb.h ETHEREXPRESS-16 NETWORK DRIVER -P: Philip Blundell -M: philb@gnu.org +M: Philip Blundell L: netdev@vger.kernel.org S: Maintained F: drivers/net/eexpress.* ETHERNET BRIDGE -P: Stephen Hemminger -M: shemminger@linux-foundation.org +M: Stephen Hemminger L: bridge@lists.linux-foundation.org W: http://www.linux-foundation.org/en/Net:Bridge S: Maintained @@ -2223,8 +1918,7 @@ F: include/linux/netfilter_bridge/ F: net/bridge/ ETHERTEAM 16I DRIVER -P: Mika Kuoppala -M: miku@iki.fi +M: Mika Kuoppala S: Maintained F: drivers/net/eth16i.c @@ -2236,12 +1930,9 @@ F: fs/ext2/ F: include/linux/ext2* EXT3 FILE SYSTEM -P: Stephen Tweedie -M: sct@redhat.com -P: Andrew Morton -M: akpm@linux-foundation.org -P: Andreas Dilger -M: adilger@sun.com +M: Stephen Tweedie +M: Andrew Morton +M: Andreas Dilger L: linux-ext4@vger.kernel.org S: Maintained F: Documentation/filesystems/ext3.txt @@ -2249,10 +1940,8 @@ F: fs/ext3/ F: include/linux/ext3* EXT4 FILE SYSTEM -P: Theodore Ts'o -M: tytso@mit.edu -P: Andreas Dilger -M: adilger@sun.com +M: "Theodore Ts'o" +M: Andreas Dilger L: linux-ext4@vger.kernel.org W: http://ext4.wiki.kernel.org S: Maintained @@ -2260,30 +1949,26 @@ F: Documentation/filesystems/ext4.txt F: fs/ext4/ F71805F HARDWARE MONITORING DRIVER -P: Jean Delvare -M: khali@linux-fr.org +M: Jean Delvare L: lm-sensors@lm-sensors.org S: Maintained F: Documentation/hwmon/f71805f F: drivers/hwmon/f71805f.c FARSYNC SYNCHRONOUS DRIVER -P: Kevin Curtis -M: kevin.curtis@farsite.co.uk +M: Kevin Curtis W: http://www.farsite.co.uk/ S: Supported F: drivers/net/wan/farsync.* FAULT INJECTION SUPPORT -P: Akinobu Mita -M: akinobu.mita@gmail.com +M: Akinobu Mita S: Supported F: Documentation/fault-injection/ F: lib/fault-inject.c FILE LOCKING (flock() and fcntl()/lockf()) -P: Matthew Wilcox -M: matthew@wil.cx +M: Matthew Wilcox L: linux-fsdevel@vger.kernel.org S: Maintained F: include/linux/fcntl.h @@ -2292,25 +1977,21 @@ F: fs/fcntl.c F: fs/locks.c FILESYSTEMS (VFS and infrastructure) -P: Alexander Viro -M: viro@zeniv.linux.org.uk +M: Alexander Viro L: linux-fsdevel@vger.kernel.org S: Maintained F: fs/* FINTEK F75375S HARDWARE MONITOR AND FAN CONTROLLER DRIVER -P: Riku Voipio -M: riku.vipio@iki.fi +M: Riku Voipio L: lm-sensors@lm-sensors.org S: Maintained F: drivers/hwmon/f75375s.c F: include/linux/f75375s.h FIREWIRE SUBSYSTEM -P: Kristian Hoegsberg -M: krh@redhat.com -P: Stefan Richter -M: stefanr@s5r6.in-berlin.de +M: Kristian Hoegsberg +M: Stefan Richter L: linux1394-devel@lists.sourceforge.net W: http://www.linux1394.org/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6.git @@ -2325,15 +2006,13 @@ F: drivers/base/firmware*.c F: include/linux/firmware.h FPU EMULATOR -P: Bill Metzenthen -M: billm@melbpc.org.au +M: Bill Metzenthen W: http://floatingpoint.sourceforge.net/emulator/index.html S: Maintained F: arch/x86/math-emu/ FRAME RELAY DLCI/FRAD (Sangoma drivers too) -P: Mike McLagan -M: mike.mclagan@linux.org +M: Mike McLagan L: netdev@vger.kernel.org S: Maintained F: drivers/net/wan/dlci.c @@ -2348,25 +2027,21 @@ F: drivers/video/fb* F: include/linux/fb.h FREESCALE DMA DRIVER -P: Li Yang -M: leoli@freescale.com -P: Zhang Wei -M: zw@zh-kernel.org +M: Li Yang +M: Zhang Wei L: linuxppc-dev@ozlabs.org S: Maintained F: drivers/dma/fsldma.* FREESCALE I2C CPM DRIVER -P: Jochen Friedrich -M: jochen@scram.de +M: Jochen Friedrich L: linuxppc-dev@ozlabs.org L: linux-i2c@vger.kernel.org S: Maintained F: drivers/i2c/busses/i2c-cpm.c FREESCALE IMX / MXC FRAMEBUFFER DRIVER -P: Sascha Hauer -M: kernel@pengutronix.de +M: Sascha Hauer L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers) L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained @@ -2374,10 +2049,8 @@ F: arch/arm/plat-mxc/include/mach/imxfb.h F: drivers/video/imxfb.c FREESCALE SOC FS_ENET DRIVER -P: Pantelis Antoniou -M: pantelis.antoniou@gmail.com -P: Vitaly Bordug -M: vbordug@ru.mvista.com +M: Pantelis Antoniou +M: Vitaly Bordug L: linuxppc-dev@ozlabs.org L: netdev@vger.kernel.org S: Maintained @@ -2385,39 +2058,34 @@ F: drivers/net/fs_enet/ F: include/linux/fs_enet_pd.h FREESCALE QUICC ENGINE LIBRARY -P: Timur Tabi -M: timur@freescale.com +M: Timur Tabi L: linuxppc-dev@ozlabs.org S: Supported F: arch/powerpc/sysdev/qe_lib/ F: arch/powerpc/include/asm/*qe.h FREESCALE HIGHSPEED USB DEVICE DRIVER -P: Li Yang -M: leoli@freescale.com +M: Li Yang L: linux-usb@vger.kernel.org L: linuxppc-dev@ozlabs.org S: Maintained F: drivers/usb/gadget/fsl_usb2_udc.c FREESCALE QUICC ENGINE UCC ETHERNET DRIVER -P: Li Yang -M: leoli@freescale.com +M: Li Yang L: netdev@vger.kernel.org L: linuxppc-dev@ozlabs.org S: Maintained F: drivers/net/ucc_geth* FREESCALE QUICC ENGINE UCC UART DRIVER -P: Timur Tabi -M: timur@freescale.com +M: Timur Tabi L: linuxppc-dev@ozlabs.org S: Supported F: drivers/serial/ucc_uart.c FREESCALE SOC SOUND DRIVERS -P: Timur Tabi -M: timur@freescale.com +M: Timur Tabi L: alsa-devel@alsa-project.org (moderated for non-subscribers) L: linuxppc-dev@ozlabs.org S: Supported @@ -2425,17 +2093,14 @@ F: sound/soc/fsl/fsl* F: sound/soc/fsl/mpc8610_hpcd.c FREEVXFS FILESYSTEM -P: Christoph Hellwig -M: hch@infradead.org +M: Christoph Hellwig W: ftp://ftp.openlinux.org/pub/people/hch/vxfs S: Maintained F: fs/freevxfs/ FREEZER -P: Pavel Machek -M: pavel@ucw.cz -P: Rafael J. Wysocki -M: rjw@sisk.pl +M: Pavel Machek +M: "Rafael J. Wysocki" L: linux-pm@lists.linux-foundation.org S: Supported F: Documentation/power/freezing-of-tasks.txt @@ -2443,8 +2108,7 @@ F: include/linux/freezer.h F: kernel/freezer.c FS-CACHE: LOCAL CACHING FOR NETWORK FILESYSTEMS -P: David Howells -M: dhowells@redhat.com +M: David Howells L: linux-cachefs@redhat.com S: Supported F: Documentation/filesystems/caching/ @@ -2452,8 +2116,7 @@ F: fs/fscache/ F: include/linux/fscache*.h FTRACE -P: Steven Rostedt -M: rostedt@goodmis.org +M: Steven Rostedt S: Maintained F: Documentation/trace/ftrace.txt F: arch/*/*/*/ftrace.h @@ -2462,21 +2125,18 @@ F: include/*/ftrace.h F: kernel/trace/ FUJITSU FR-V (FRV) PORT -P: David Howells -M: dhowells@redhat.com +M: David Howells S: Maintained F: arch/frv/ FUJITSU LAPTOP EXTRAS -P: Jonathan Woithe -M: jwoithe@physics.adelaide.edu.au +M: Jonathan Woithe L: linux-acpi@vger.kernel.org S: Maintained F: drivers/platform/x86/fujitsu-laptop.c FUSE: FILESYSTEM IN USERSPACE -P: Miklos Szeredi -M: miklos@szeredi.hu +M: Miklos Szeredi L: fuse-devel@lists.sourceforge.net W: http://fuse.sourceforge.net/ S: Maintained @@ -2484,30 +2144,26 @@ F: fs/fuse/ F: include/linux/fuse.h FUTURE DOMAIN TMC-16x0 SCSI DRIVER (16-bit) -P: Rik Faith -M: faith@cs.unc.edu +M: Rik Faith L: linux-scsi@vger.kernel.org S: Odd Fixes (e.g., new signatures) F: drivers/scsi/fdomain.* GDT SCSI DISK ARRAY CONTROLLER DRIVER -P: Achim Leubner -M: achim_leubner@adaptec.com +M: Achim Leubner L: linux-scsi@vger.kernel.org W: http://www.icp-vortex.com/ S: Supported F: drivers/scsi/gdt* GENERIC GPIO I2C DRIVER -P: Haavard Skinnemoen -M: hskinnemoen@atmel.com +M: Haavard Skinnemoen S: Supported F: drivers/i2c/busses/i2c-gpio.c F: include/linux/i2c-gpio.h GENERIC HDLC (WAN) DRIVERS -P: Krzysztof Halasa -M: khc@pm.waw.pl +M: Krzysztof Halasa W: http://www.kernel.org/pub/linux/utils/net/hdlc/ S: Maintained F: drivers/net/wan/c101.c @@ -2519,16 +2175,14 @@ F: drivers/net/wan/pci200syn.c F: drivers/net/wan/wanxl* GENERIC INCLUDE/ASM HEADER FILES -P: Arnd Bergmann -M: arnd@arndb.de +M: Arnd Bergmann L: linux-arch@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git S: Maintained F: include/asm-generic GFS2 FILE SYSTEM -P: Steven Whitehouse -M: swhiteho@redhat.com +M: Steven Whitehouse L: cluster-devel@redhat.com W: http://sources.redhat.com/cluster/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes.git @@ -2539,10 +2193,8 @@ F: fs/gfs2/ F: include/linux/gfs2_ondisk.h GIGASET ISDN DRIVERS -P: Hansjoerg Lipp -M: hjlipp@web.de -P: Tilman Schmidt -M: tilman@imap.cc +M: Hansjoerg Lipp +M: Tilman Schmidt L: gigaset307x-common@lists.sourceforge.net W: http://gigaset307x.sourceforge.net/ S: Maintained @@ -2551,8 +2203,7 @@ F: drivers/isdn/gigaset/ F: include/linux/gigaset_dev.h HARD DRIVE ACTIVE PROTECTION SYSTEM (HDAPS) DRIVER -P: Frank Seidel -M: frank@f-seidel.de +M: Frank Seidel L: lm-sensors@lm-sensors.org W: http://www.kernel.org/pub/linux/kernel/people/fseidel/hdaps/ S: Maintained @@ -2564,40 +2215,35 @@ S: Odd Fixes F: drivers/char/hvc_* GSPCA FINEPIX SUBDRIVER -P: Frank Zago -M: frank@zago.net +M: Frank Zago L: linux-media@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git S: Maintained F: drivers/media/video/gspca/finepix.c GSPCA M5602 SUBDRIVER -P: Erik Andren -M: erik.andren@gmail.com +M: Erik Andren L: linux-media@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git S: Maintained F: drivers/media/video/gspca/m5602/ GSPCA PAC207 SONIXB SUBDRIVER -P: Hans de Goede -M: hdegoede@redhat.com +M: Hans de Goede L: linux-media@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git S: Maintained F: drivers/media/video/gspca/pac207.c GSPCA T613 SUBDRIVER -P: Leandro Costantino -M: lcostantino@gmail.com +M: Leandro Costantino L: linux-media@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git S: Maintained F: drivers/media/video/gspca/t613.c GSPCA USB WEBCAM DRIVER -P: Jean-Francois Moine -M: moinejf@free.fr +M: Jean-Francois Moine W: http://moinejf.free.fr L: linux-media@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git @@ -2617,31 +2263,27 @@ F: drivers/char/hw_random/ F: include/linux/hw_random.h HARMONY SOUND DRIVER -P: Kyle McMartin -M: kyle@mcmartin.ca +M: Kyle McMartin L: linux-parisc@vger.kernel.org S: Maintained F: sound/parisc/harmony.* HAYES ESP SERIAL DRIVER -P: Andrew J. Robinson -M: arobinso@nyx.net +M: "Andrew J. Robinson" W: http://www.nyx.net/~arobinso S: Maintained F: Documentation/serial/hayes-esp.txt F: drivers/char/esp.c HEWLETT-PACKARD SMART2 RAID DRIVER -P: Chirag Kantharia -M: chirag.kantharia@hp.com +M: Chirag Kantharia L: iss_storagedev@hp.com S: Maintained F: Documentation/blockdev/cpqarray.txt F: drivers/block/cpqarray.* HEWLETT-PACKARD SMART CISS RAID DRIVER (cciss) -P: Mike Miller -M: mike.miller@hp.com +M: Mike Miller L: iss_storagedev@hp.com S: Supported F: Documentation/blockdev/cciss.txt @@ -2649,25 +2291,21 @@ F: drivers/block/cciss* F: include/linux/cciss_ioctl.h HFS FILESYSTEM -P: Roman Zippel -M: zippel@linux-m68k.org +M: Roman Zippel S: Maintained F: Documentation/filesystems/hfs.txt F: fs/hfs/ HGA FRAMEBUFFER DRIVER -P: Ferenc Bakonyi -M: fero@drama.obuda.kando.hu +M: Ferenc Bakonyi L: linux-nvidia@lists.surfsouth.com W: http://drama.obuda.kando.hu/~fero/cgi-bin/hgafb.shtml S: Maintained F: drivers/video/hgafb.c HIBERNATION (aka Software Suspend, aka swsusp) -P: Pavel Machek -M: pavel@ucw.cz -P: Rafael J. Wysocki -M: rjw@sisk.pl +M: Pavel Machek +M: "Rafael J. Wysocki" L: linux-pm@lists.linux-foundation.org S: Supported F: arch/x86/power/ @@ -2679,8 +2317,7 @@ F: include/linux/pm.h F: arch/*/include/asm/suspend*.h HID CORE LAYER -P: Jiri Kosina -M: jkosina@suse.cz +M: Jiri Kosina L: linux-input@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid.git S: Maintained @@ -2688,16 +2325,14 @@ F: drivers/hid/ F: include/linux/hid* HIGH-RESOLUTION TIMERS, CLOCKEVENTS, DYNTICKS -P: Thomas Gleixner -M: tglx@linutronix.de +M: Thomas Gleixner S: Maintained F: Documentation/timers/ F: kernel/hrtimer.c F: include/linux/hrtimer.h HIGH-SPEED SCC DRIVER FOR AX.25 -P: Klaus Kudielka -M: klaus.kudielka@ieee.org +M: Klaus Kudielka L: linux-hams@vger.kernel.org W: http://www.nt.tuwien.ac.at/~kkudielk/Linux/ S: Maintained @@ -2705,16 +2340,14 @@ F: drivers/net/hamradio/dmascc.c F: drivers/net/hamradio/scc.c HIGHPOINT ROCKETRAID 3xxx RAID DRIVER -P: HighPoint Linux Team -M: linux@highpoint-tech.com +M: HighPoint Linux Team W: http://www.highpoint-tech.com S: Supported F: Documentation/scsi/hptiop.txt F: drivers/scsi/hptiop.c HIPPI -P: Jes Sorensen -M: jes@trained-monkey.org +M: Jes Sorensen L: linux-hippi@sunsite.dk S: Maintained F: include/linux/hippidevice.h @@ -2722,8 +2355,7 @@ F: include/linux/if_hippi.h F: net/802/hippi.c HOST AP DRIVER -P: Jouni Malinen -M: j@w1.fi +M: Jouni Malinen L: hostap@shmoo.com (subscribers-only) L: linux-wireless@vger.kernel.org W: http://hostap.epitest.fi/ @@ -2731,82 +2363,69 @@ S: Maintained F: drivers/net/wireless/hostap/ HP COMPAQ TC1100 TABLET WMI EXTRAS DRIVER -P: Carlos Corbacho -M: carlos@strangeworlds.co.uk +M: Carlos Corbacho S: Odd Fixes F: drivers/platform/x86/tc1100-wmi.c HP100: Driver for HP 10/100 Mbit/s Voice Grade Network Adapter Series -P: Jaroslav Kysela -M: perex@perex.cz +M: Jaroslav Kysela S: Maintained F: drivers/net/hp100.* HPET: High Precision Event Timers driver -P: Clemens Ladisch -M: clemens@ladisch.de +M: Clemens Ladisch S: Maintained F: Documentation/timers/hpet.txt F: drivers/char/hpet.c F: include/linux/hpet.h HPET: i386 -P: Venkatesh Pallipadi (Venki) -M: venkatesh.pallipadi@intel.com +M: "Venkatesh Pallipadi (Venki)" S: Maintained F: arch/x86/kernel/hpet.c F: arch/x86/include/asm/hpet.h HPET: x86_64 -P: Vojtech Pavlik -M: vojtech@suse.cz +M: Vojtech Pavlik S: Maintained HPET: ACPI -P: Bob Picco -M: bob.picco@hp.com +M: Bob Picco S: Maintained F: drivers/char/hpet.c HPFS FILESYSTEM -P: Mikulas Patocka -M: mikulas@artax.karlin.mff.cuni.cz +M: Mikulas Patocka W: http://artax.karlin.mff.cuni.cz/~mikulas/vyplody/hpfs/index-e.cgi S: Maintained F: fs/hpfs/ HSO 3G MODEM DRIVER -P: Jan Dumon -M: j.dumon@option.com +M: Jan Dumon W: http://www.pharscape.org S: Maintained F: drivers/net/usb/hso.c HTCPEN TOUCHSCREEN DRIVER -P: Pau Oliva Fora -M: pof@eslack.org +M: Pau Oliva Fora L: linux-input@vger.kernel.org S: Maintained F: drivers/input/touchscreen/htcpen.c HUGETLB FILESYSTEM -P: William Irwin -M: wli@holomorphy.com +M: William Irwin S: Maintained F: fs/hugetlbfs/ I2C/SMBUS STUB DRIVER -P: Mark M. Hoffman -M: mhoffman@lightlink.com +M: "Mark M. Hoffman" L: linux-i2c@vger.kernel.org S: Maintained F: drivers/i2c/busses/i2c-stub.c I2C SUBSYSTEM -P: Jean Delvare (PC drivers, core) -M: khali@linux-fr.org -P: Ben Dooks (embedded platforms) -M: ben-linux@fluff.org +M: "Jean Delvare (PC drivers, core)" +M: "Ben Dooks (embedded platforms)" L: linux-i2c@vger.kernel.org W: http://i2c.wiki.kernel.org/ T: quilt kernel.org/pub/linux/kernel/people/jdelvare/linux-2.6/jdelvare-i2c/ @@ -2818,30 +2437,25 @@ F: include/linux/i2c-dev.h F: include/linux/i2c-id.h I2C-TINY-USB DRIVER -P: Till Harbaum -M: till@harbaum.org +M: Till Harbaum L: linux-i2c@vger.kernel.org W: http://www.harbaum.org/till/i2c_tiny_usb S: Maintained F: drivers/i2c/busses/i2c-tiny-usb.c i386 BOOT CODE -P: H. Peter Anvin -M: hpa@zytor.com +M: "H. Peter Anvin" S: Maintained F: arch/x86/boot/ i386 SETUP CODE / CPU ERRATA WORKAROUNDS -P: H. Peter Anvin -M: hpa@zytor.com +M: "H. Peter Anvin" T: git git://git.kernel.org/pub/scm/linux/kernel/git/hpa/linux-2.6-x86setup.git S: Maintained IA64 (Itanium) PLATFORM -P: Tony Luck -M: tony.luck@intel.com -P: Fenghua Yu -M: fenghua.yu@intel.com +M: Tony Luck +M: Fenghua Yu L: linux-ia64@vger.kernel.org W: http://www.ia64-linux.org/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6.git @@ -2849,29 +2463,25 @@ S: Maintained F: arch/ia64/ IBM MCA SCSI SUBSYSTEM DRIVER -P: Michael Lang -M: langa2@kph.uni-mainz.de +M: Michael Lang W: http://www.uni-mainz.de/~langm000/linux.html S: Maintained F: drivers/scsi/ibmmca.c IBM Power Linux RAID adapter -P: Brian King -M: brking@us.ibm.com +M: Brian King S: Supported F: drivers/scsi/ipr.* IBM ServeRAID RAID DRIVER P: Jack Hammer -P: Dave Jeffery -M: ipslinux@adaptec.com +M: Dave Jeffery W: http://www.developer.ibm.com/welcome/netfinity/serveraid.html S: Supported F: drivers/scsi/ips.* IDE SUBSYSTEM -P: David S. Miller -M: davem@davemloft.net +M: "David S. Miller" L: linux-ide@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6.git S: Maintained @@ -2880,25 +2490,21 @@ F: drivers/ide/ F: include/linux/ide.h IDE/ATAPI DRIVERS -P: Borislav Petkov -M: petkovbb@gmail.com +M: Borislav Petkov L: linux-ide@vger.kernel.org S: Maintained F: Documentation/cdrom/ide-cd F: drivers/ide/ide-cd* IDLE-I7300 -P: Andy Henroid -M: andrew.d.henroid@intel.com +M: Andy Henroid L: linux-pm@lists.linux-foundation.org S: Supported F: drivers/idle/i7300_idle.c IEEE 1394 SUBSYSTEM -P: Ben Collins -M: ben.collins@ubuntu.com -P: Stefan Richter -M: stefanr@s5r6.in-berlin.de +M: Ben Collins +M: Stefan Richter L: linux1394-devel@lists.sourceforge.net W: http://www.linux1394.org/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6.git @@ -2906,19 +2512,15 @@ S: Maintained F: drivers/ieee1394/ IEEE 1394 RAW I/O DRIVER -P: Dan Dennedy -M: dan@dennedy.org -P: Stefan Richter -M: stefanr@s5r6.in-berlin.de +M: Dan Dennedy +M: Stefan Richter L: linux1394-devel@lists.sourceforge.net S: Maintained F: drivers/ieee1394/raw1394* IEEE 802.15.4 SUBSYSTEM -P: Dmitry Eremin-Solenikov -M: dbaryshkov@gmail.com -P: Sergey Lapin -M: slapin@ossfans.org +M: Dmitry Eremin-Solenikov +M: Sergey Lapin L: linux-zigbee-devel@lists.sourceforge.net (moderated for non-subscribers) W: http://apps.sourceforge.net/trac/linux-zigbee T: git git://git.kernel.org/pub/scm/linux/kernel/git/lowpan/lowpan.git @@ -2927,8 +2529,7 @@ F: net/ieee802154/ F: drivers/ieee802154/ INTEGRITY MEASUREMENT ARCHITECTURE (IMA) -P: Mimi Zohar -M: zohar@us.ibm.com +M: Mimi Zohar S: Supported F: security/integrity/ima/ @@ -2938,12 +2539,9 @@ S: Orphan F: drivers/video/imsttfb.c INFINIBAND SUBSYSTEM -P: Roland Dreier -M: rolandd@cisco.com -P: Sean Hefty -M: sean.hefty@intel.com -P: Hal Rosenstock -M: hal.rosenstock@gmail.com +M: Roland Dreier +M: Sean Hefty +M: Hal Rosenstock L: general@lists.openfabrics.org (moderated for non-subscribers) W: http://www.openib.org/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband.git @@ -2953,66 +2551,55 @@ F: drivers/infiniband/ F: include/linux/if_infiniband.h INOTIFY -P: John McCutchan -M: john@johnmccutchan.com -P: Robert Love -M: rlove@rlove.org -P: Eric Paris -M: eparis@parisplace.org +M: John McCutchan +M: Robert Love +M: Eric Paris S: Maintained F: Documentation/filesystems/inotify.txt F: fs/notify/inotify/ F: include/linux/inotify.h INPUT (KEYBOARD, MOUSE, JOYSTICK, TOUCHSCREEN) DRIVERS -P: Dmitry Torokhov -M: dmitry.torokhov@gmail.com -P: Dmitry Torokhov -M: dtor@mail.ru +M: Dmitry Torokhov +M: Dmitry Torokhov L: linux-input@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git S: Maintained F: drivers/input/ INTEL FRAMEBUFFER DRIVER (excluding 810 and 815) -P: Sylvain Meyer -M: sylvain.meyer@worldonline.fr +M: Sylvain Meyer L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers) S: Maintained F: Documentation/fb/intelfb.txt F: drivers/video/intelfb/ INTEL 810/815 FRAMEBUFFER DRIVER -P: Antonino Daplas -M: adaplas@gmail.com +M: Antonino Daplas L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers) S: Maintained F: drivers/video/i810/ INTEL MENLOW THERMAL DRIVER -P: Sujith Thomas -M: sujith.thomas@intel.com +M: Sujith Thomas L: linux-acpi@vger.kernel.org W: http://www.lesswatts.org/projects/acpi/ S: Supported F: drivers/platform/x86/intel_menlow.c INTEL IA32 MICROCODE UPDATE SUPPORT -P: Tigran Aivazian -M: tigran@aivazian.fsnet.co.uk +M: Tigran Aivazian S: Maintained F: arch/x86/kernel/microcode_core.c F: arch/x86/kernel/microcode_intel.c INTEL I/OAT DMA DRIVER -P: Maciej Sosnowski -M: maciej.sosnowski@intel.com +M: Maciej Sosnowski S: Supported F: drivers/dma/ioat* INTEL IOMMU (VT-d) -P: David Woodhouse -M: dwmw2@infradead.org +M: David Woodhouse L: iommu@lists.linux-foundation.org T: git git://git.infradead.org/iommu-2.6.git S: Supported @@ -3020,14 +2607,12 @@ F: drivers/pci/intel-iommu.c F: include/linux/intel-iommu.h INTEL IOP-ADMA DMA DRIVER -P: Dan Williams -M: dan.j.williams@intel.com +M: Dan Williams S: Supported F: drivers/dma/iop-adma.c INTEL IXP4XX QMGR, NPE, ETHERNET and HSS SUPPORT -P: Krzysztof Halasa -M: khc@pm.waw.pl +M: Krzysztof Halasa S: Maintained F: arch/arm/mach-ixp4xx/include/mach/qmgr.h F: arch/arm/mach-ixp4xx/include/mach/npe.h @@ -3037,29 +2622,22 @@ F: drivers/net/arm/ixp4xx_eth.c F: drivers/net/wan/ixp4xx_hss.c INTEL IXP4XX RANDOM NUMBER GENERATOR SUPPORT -P: Deepak Saxena -M: dsaxena@plexity.net +M: Deepak Saxena S: Maintained F: drivers/char/hw_random/ixp4xx-rng.c INTEL IXP2000 ETHERNET DRIVER -P: Lennert Buytenhek -M: kernel@wantstofly.org +M: Lennert Buytenhek L: netdev@vger.kernel.org S: Maintained F: drivers/net/ixp2000/ INTEL ETHERNET DRIVERS (e100/e1000/e1000e/igb/ixgb/ixgbe) -P: Jeff Kirsher -M: jeffrey.t.kirsher@intel.com -P: Jesse Brandeburg -M: jesse.brandeburg@intel.com -P: Bruce Allan -M: bruce.w.allan@intel.com -P: PJ Waskiewicz -M: peter.p.waskiewicz.jr@intel.com -P: John Ronciak -M: john.ronciak@intel.com +M: Jeff Kirsher +M: Jesse Brandeburg +M: Bruce Allan +M: PJ Waskiewicz +M: John Ronciak L: e1000-devel@lists.sourceforge.net W: http://e1000.sourceforge.net/ S: Supported @@ -3071,12 +2649,9 @@ F: drivers/net/ixgb/ F: drivers/net/ixgbe/ INTEL PRO/WIRELESS 2100 NETWORK CONNECTION SUPPORT -P: Zhu Yi -M: yi.zhu@intel.com -P: James Ketrenos -M: jketreno@linux.intel.com -P: Reinette Chatre -M: reinette.chatre@intel.com +M: Zhu Yi +M: James Ketrenos +M: Reinette Chatre L: linux-wireless@vger.kernel.org L: ipw2100-devel@lists.sourceforge.net W: http://lists.sourceforge.net/mailman/listinfo/ipw2100-devel @@ -3086,12 +2661,9 @@ F: Documentation/networking/README.ipw2100 F: drivers/net/wireless/ipw2x00/ipw2100.* INTEL PRO/WIRELESS 2915ABG NETWORK CONNECTION SUPPORT -P: Zhu Yi -M: yi.zhu@intel.com -P: James Ketrenos -M: jketreno@linux.intel.com -P: Reinette Chatre -M: reinette.chatre@intel.com +M: Zhu Yi +M: James Ketrenos +M: Reinette Chatre L: linux-wireless@vger.kernel.org L: ipw2100-devel@lists.sourceforge.net W: http://lists.sourceforge.net/mailman/listinfo/ipw2100-devel @@ -3101,8 +2673,7 @@ F: Documentation/networking/README.ipw2200 F: drivers/net/wireless/ipw2x00/ipw2200.* INTEL WIRELESS WIMAX CONNECTION 2400 -P: Inaky Perez-Gonzalez -M: inaky.perez-gonzalez@intel.com +M: Inaky Perez-Gonzalez M: linux-wimax@intel.com L: wimax@linuxwimax.org S: Supported @@ -3112,10 +2683,8 @@ F: drivers/net/wimax/i2400m/ F: include/linux/wimax/i2400m.h INTEL WIRELESS WIFI LINK (iwlwifi) -P: Zhu Yi -M: yi.zhu@intel.com -P: Reinette Chatre -M: reinette.chatre@intel.com +M: Zhu Yi +M: Reinette Chatre L: linux-wireless@vger.kernel.org L: ipw3945-devel@lists.sourceforge.net W: http://intellinuxwireless.org @@ -3124,47 +2693,39 @@ S: Supported F: drivers/net/wireless/iwlwifi/ IOC3 ETHERNET DRIVER -P: Ralf Baechle -M: ralf@linux-mips.org +M: Ralf Baechle L: linux-mips@linux-mips.org S: Maintained F: drivers/net/ioc3-eth.c IOC3 SERIAL DRIVER -P: Pat Gefre -M: pfg@sgi.com +M: Pat Gefre L: linux-mips@linux-mips.org S: Maintained F: drivers/serial/ioc3_serial.c IP MASQUERADING -P: Juanjo Ciarlante -M: jjciarla@raiz.uncu.edu.ar +M: Juanjo Ciarlante S: Maintained F: net/ipv4/netfilter/ipt_MASQUERADE.c IP1000A 10/100/1000 GIGABIT ETHERNET DRIVER -P: Francois Romieu -M: romieu@fr.zoreil.com -P: Sorbica Shieh -M: sorbica@icplus.com.tw -P: Jesse Huang -M: jesse@icplus.com.tw +M: Francois Romieu +M: Sorbica Shieh +M: Jesse Huang L: netdev@vger.kernel.org S: Maintained F: drivers/net/ipg.c IPATH DRIVER -P: Ralph Campbell -M: infinipath@qlogic.com +M: Ralph Campbell L: general@lists.openfabrics.org T: git git://git.qlogic.com/ipath-linux-2.6 S: Supported F: drivers/infiniband/hw/ipath/ IPMI SUBSYSTEM -P: Corey Minyard -M: minyard@acm.org +M: Corey Minyard L: openipmi-developer@lists.sourceforge.net W: http://openipmi.sourceforge.net/ S: Supported @@ -3173,20 +2734,16 @@ F: drivers/char/ipmi/ F: include/linux/ipmi* IPS SCSI RAID DRIVER -P: Adaptec OEM Raid Solutions -M: aacraid@adaptec.com +M: Adaptec OEM Raid Solutions L: linux-scsi@vger.kernel.org W: http://www.adaptec.com/ S: Maintained F: drivers/scsi/ips* IPVS -P: Wensong Zhang -M: wensong@linux-vs.org -P: Simon Horman -M: horms@verge.net.au -P: Julian Anastasov -M: ja@ssi.bg +M: Wensong Zhang +M: Simon Horman +M: Julian Anastasov L: netdev@vger.kernel.org L: lvs-devel@vger.kernel.org S: Maintained @@ -3194,17 +2751,14 @@ F: Documentation/networking/ipvs-sysctl.txt F: net/netfilter/ipvs/ IPWIRELESS DRIVER -P: Jiri Kosina -M: jkosina@suse.cz -P: David Sterba -M: dsterba@suse.cz +M: Jiri Kosina +M: David Sterba S: Maintained T: git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/ipwireless_cs.git F: drivers/char/pcmcia/ipwireless/ IPX NETWORK LAYER -P: Arnaldo Carvalho de Melo -M: acme@ghostprotocols.net +M: Arnaldo Carvalho de Melo L: netdev@vger.kernel.org S: Maintained F: include/linux/ipx.h @@ -3212,8 +2766,7 @@ F: include/net/ipx.h F: net/ipx/ IRDA SUBSYSTEM -P: Samuel Ortiz -M: samuel@sortiz.org +M: Samuel Ortiz L: irda-users@lists.sourceforge.net (subscribers-only) W: http://irda.sourceforge.net/ S: Maintained @@ -3224,16 +2777,14 @@ F: include/net/irda/ F: net/irda/ ISAPNP -P: Jaroslav Kysela -M: perex@perex.cz +M: Jaroslav Kysela S: Maintained F: Documentation/isapnp.txt F: drivers/pnp/isapnp/ F: include/linux/isapnp.h ISCSI -P: Mike Christie -M: michaelc@cs.wisc.edu +M: Mike Christie L: open-iscsi@googlegroups.com W: www.open-iscsi.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mnc/linux-2.6-iscsi.git @@ -3242,8 +2793,7 @@ F: drivers/scsi/*iscsi* F: include/scsi/*iscsi* ISDN SUBSYSTEM -P: Karsten Keil -M: isdn@linux-pingi.de +M: Karsten Keil L: isdn4linux@listserv.isdn4linux.de (subscribers-only) W: http://www.isdn4linux.de T: git git://git.kernel.org/pub/scm/linux/kernel/git/kkeil/isdn-2.6.git @@ -3254,16 +2804,14 @@ F: include/linux/isdn.h F: include/linux/isdn/ ISDN SUBSYSTEM (Eicon active card driver) -P: Armin Schindler -M: mac@melware.de +M: Armin Schindler L: isdn4linux@listserv.isdn4linux.de (subscribers-only) W: http://www.melware.de S: Maintained F: drivers/isdn/hardware/eicon/ IVTV VIDEO4LINUX DRIVER -P: Hans Verkuil -M: hverkuil@xs4all.nl +M: Hans Verkuil L: ivtv-devel@ivtvdriver.org L: linux-media@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git @@ -3274,8 +2822,7 @@ F: drivers/media/video/ivtv/ F: include/linux/ivtv* JFS FILESYSTEM -P: Dave Kleikamp -M: shaggy@linux.vnet.ibm.com +M: Dave Kleikamp L: jfs-discussion@lists.sourceforge.net W: http://jfs.sourceforge.net/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6.git @@ -3284,15 +2831,13 @@ F: Documentation/filesystems/jfs.txt F: fs/jfs/ JME NETWORK DRIVER -P: Guo-Fu Tseng -M: cooldavid@cooldavid.org +M: Guo-Fu Tseng L: netdev@vger.kernel.org S: Maintained F: drivers/net/jme.* JOURNALLING FLASH FILE SYSTEM V2 (JFFS2) -P: David Woodhouse -M: dwmw2@infradead.org +M: David Woodhouse L: linux-mtd@lists.infradead.org W: http://www.linux-mtd.infradead.org/doc/jffs2.html S: Maintained @@ -3300,10 +2845,8 @@ F: fs/jffs2/ F: include/linux/jffs2.h JOURNALLING LAYER FOR BLOCK DEVICES (JBD) -P: Stephen Tweedie -M: sct@redhat.com -P: Andrew Morton -M: akpm@linux-foundation.org +M: Stephen Tweedie +M: Andrew Morton L: linux-ext4@vger.kernel.org S: Maintained F: fs/jbd*/ @@ -3311,48 +2854,41 @@ F: include/linux/ext*jbd*.h F: include/linux/jbd*.h K8TEMP HARDWARE MONITORING DRIVER -P: Rudolf Marek -M: r.marek@assembler.cz +M: Rudolf Marek L: lm-sensors@lm-sensors.org S: Maintained F: Documentation/hwmon/k8temp F: drivers/hwmon/k8temp.c KCONFIG -P: Roman Zippel -M: zippel@linux-m68k.org +M: Roman Zippel L: linux-kbuild@vger.kernel.org S: Maintained F: Documentation/kbuild/kconfig-language.txt F: scripts/kconfig/ KDUMP -P: Vivek Goyal -M: vgoyal@redhat.com -P: Haren Myneni -M: hbabu@us.ibm.com +M: Vivek Goyal +M: Haren Myneni L: kexec@lists.infradead.org W: http://lse.sourceforge.net/kdump/ S: Maintained F: Documentation/kdump/ KERNEL AUTOMOUNTER (AUTOFS) -P: H. Peter Anvin -M: hpa@zytor.com +M: "H. Peter Anvin" L: autofs@linux.kernel.org S: Odd Fixes F: fs/autofs/ KERNEL AUTOMOUNTER v4 (AUTOFS4) -P: Ian Kent -M: raven@themaw.net +M: Ian Kent L: autofs@linux.kernel.org S: Maintained F: fs/autofs4/ KERNEL BUILD -P: Sam Ravnborg -M: sam@ravnborg.org +M: Sam Ravnborg T: git git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next.git T: git git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes.git L: linux-kbuild@vger.kernel.org @@ -3367,10 +2903,8 @@ W: http://www.kerneljanitors.org/ S: Odd fixes KERNEL NFSD, SUNRPC, AND LOCKD SERVERS -P: J. Bruce Fields -M: bfields@fieldses.org -P: Neil Brown -M: neilb@suse.de +M: "J. Bruce Fields" +M: Neil Brown L: linux-nfs@vger.kernel.org W: http://nfs.sourceforge.net/ S: Supported @@ -3383,8 +2917,7 @@ F: include/linux/lockd/ F: include/linux/sunrpc/ KERNEL VIRTUAL MACHINE (KVM) -P: Avi Kivity -M: avi@redhat.com +M: Avi Kivity L: kvm@vger.kernel.org W: http://kvm.qumranet.com S: Supported @@ -3395,8 +2928,7 @@ F: include/linux/kvm* F: virt/kvm/ KERNEL VIRTUAL MACHINE (KVM) FOR AMD-V -P: Joerg Roedel -M: joerg.roedel@amd.com +M: Joerg Roedel L: kvm@vger.kernel.org W: http://kvm.qumranet.com S: Supported @@ -3405,8 +2937,7 @@ F: arch/x86/kvm/kvm_svm.h F: arch/x86/kvm/svm.c KERNEL VIRTUAL MACHINE (KVM) FOR POWERPC -P: Hollis Blanchard -M: hollisb@us.ibm.com +M: Hollis Blanchard L: kvm-ppc@vger.kernel.org W: http://kvm.qumranet.com S: Supported @@ -3414,8 +2945,7 @@ F: arch/powerpc/include/asm/kvm* F: arch/powerpc/kvm/ KERNEL VIRTUAL MACHINE For Itanium (KVM/IA64) -P: Xiantao Zhang -M: xiantao.zhang@intel.com +M: Xiantao Zhang L: kvm-ia64@vger.kernel.org W: http://kvm.qumranet.com S: Supported @@ -3424,10 +2954,8 @@ F: arch/ia64/include/asm/kvm* F: arch/ia64/kvm/ KERNEL VIRTUAL MACHINE for s390 (KVM/s390) -P: Carsten Otte -M: cotte@de.ibm.com -P: Christian Borntraeger -M: borntraeger@de.ibm.com +M: Carsten Otte +M: Christian Borntraeger M: linux390@de.ibm.com L: linux-s390@vger.kernel.org W: http://www.ibm.com/developerworks/linux/linux390/ @@ -3437,8 +2965,7 @@ F: arch/s390/include/asm/kvm* F: arch/s390/kvm/ KEXEC -P: Eric Biederman -M: ebiederm@xmission.com +M: Eric Biederman W: http://ftp.kernel.org/pub/linux/kernel/people/horms/kexec-tools/ L: kexec@lists.infradead.org S: Maintained @@ -3446,8 +2973,7 @@ F: include/linux/kexec.h F: kernel/kexec.c KGDB -P: Jason Wessel -M: jason.wessel@windriver.com +M: Jason Wessel L: kgdb-bugreport@lists.sourceforge.net S: Maintained F: Documentation/DocBook/kgdb.tmpl @@ -3457,15 +2983,13 @@ F: include/linux/kgdb.h F: kernel/kgdb.c KMEMCHECK -P: Vegard Nossum -M: vegardno@ifi.uio.no +M: Vegard Nossum P Pekka Enberg M: penberg@cs.helsinki.fi S: Maintained KMEMLEAK -P: Catalin Marinas -M: catalin.marinas@arm.com +M: Catalin Marinas S: Maintained F: Documentation/kmemleak.txt F: include/linux/kmemleak.h @@ -3473,30 +2997,24 @@ F: mm/kmemleak.c F: mm/kmemleak-test.c KMEMTRACE -P: Eduard - Gabriel Munteanu -M: eduard.munteanu@linux360.ro +M: Eduard - Gabriel Munteanu S: Maintained F: Documentation/trace/kmemtrace.txt F: include/linux/kmemtrace.h F: kernel/trace/kmemtrace.c KPROBES -P: Ananth N Mavinakayanahalli -M: ananth@in.ibm.com -P: Anil S Keshavamurthy -M: anil.s.keshavamurthy@intel.com -P: David S. Miller -M: davem@davemloft.net -P: Masami Hiramatsu -M: mhiramat@redhat.com +M: Ananth N Mavinakayanahalli +M: Anil S Keshavamurthy +M: "David S. Miller" +M: Masami Hiramatsu S: Maintained F: Documentation/kprobes.txt F: include/linux/kprobes.h F: kernel/kprobes.c KS0108 LCD CONTROLLER DRIVER -P: Miguel Ojeda Sandonis -M: miguel.ojeda.sandonis@gmail.com +M: Miguel Ojeda Sandonis W: http://miguelojeda.es/auxdisplay.htm W: http://jair.lab.fi.uva.es/~migojed/auxdisplay.htm S: Maintained @@ -3512,31 +3030,27 @@ F: include/*/lapb.h F: net/lapb/ LASI 53c700 driver for PARISC -P: James E.J. Bottomley -M: James.Bottomley@HansenPartnership.com +M: "James E.J. Bottomley" L: linux-scsi@vger.kernel.org S: Maintained F: Documentation/scsi/53c700.txt F: drivers/scsi/53c700* LED SUBSYSTEM -P: Richard Purdie -M: rpurdie@rpsys.net +M: Richard Purdie S: Maintained F: drivers/leds/ F: include/linux/leds.h LEGO USB Tower driver -P: Juergen Stuber -M: starblue@users.sourceforge.net +M: Juergen Stuber L: legousb-devel@lists.sourceforge.net W: http://legousb.sourceforge.net/ S: Maintained F: drivers/usb/misc/legousbtower.c LGUEST -P: Rusty Russell -M: rusty@rustcorp.com.au +M: Rusty Russell L: lguest@ozlabs.org W: http://lguest.ozlabs.org/ S: Maintained @@ -3547,119 +3061,100 @@ F: include/linux/lguest*.h F: arch/x86/include/asm/lguest*.h LINUX FOR IBM pSERIES (RS/6000) -P: Paul Mackerras -M: paulus@au.ibm.com +M: Paul Mackerras W: http://www.ibm.com/linux/ltc/projects/ppc S: Supported LINUX FOR POWERPC (32-BIT AND 64-BIT) -P: Benjamin Herrenschmidt -M: benh@kernel.crashing.org -P: Paul Mackerras -M: paulus@samba.org +M: Benjamin Herrenschmidt +M: Paul Mackerras W: http://www.penguinppc.org/ L: linuxppc-dev@ozlabs.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc.git S: Supported LINUX FOR POWER MACINTOSH -P: Benjamin Herrenschmidt -M: benh@kernel.crashing.org +M: Benjamin Herrenschmidt W: http://www.penguinppc.org/ L: linuxppc-dev@ozlabs.org S: Maintained LINUX FOR POWERPC EMBEDDED MPC5XXX -P: Grant Likely -M: grant.likely@secretlab.ca +M: Grant Likely L: linuxppc-dev@ozlabs.org T: git git://git.secretlab.ca/git/linux-2.6.git S: Maintained LINUX FOR POWERPC EMBEDDED PPC4XX -P: Josh Boyer -M: jwboyer@linux.vnet.ibm.com -P: Matt Porter -M: mporter@kernel.crashing.org +M: Josh Boyer +M: Matt Porter W: http://www.penguinppc.org/ L: linuxppc-dev@ozlabs.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx.git S: Maintained LINUX FOR POWERPC EMBEDDED XILINX VIRTEX -P: Grant Likely -M: grant.likely@secretlab.ca +M: Grant Likely W: http://wiki.secretlab.ca/index.php/Linux_on_Xilinx_Virtex L: linuxppc-dev@ozlabs.org T: git git://git.secretlab.ca/git/linux-2.6.git S: Maintained LINUX FOR POWERPC EMBEDDED PPC8XX -P: Vitaly Bordug -M: vitb@kernel.crashing.org -P: Marcelo Tosatti -M: marcelo@kvack.org +M: Vitaly Bordug +M: Marcelo Tosatti W: http://www.penguinppc.org/ L: linuxppc-dev@ozlabs.org S: Maintained LINUX FOR POWERPC EMBEDDED PPC83XX AND PPC85XX -P: Kumar Gala -M: galak@kernel.crashing.org +M: Kumar Gala W: http://www.penguinppc.org/ L: linuxppc-dev@ozlabs.org S: Maintained LINUX FOR POWERPC PA SEMI PWRFICIENT -P: Olof Johansson -M: olof@lixom.net +M: Olof Johansson W: http://www.pasemi.com/ L: linuxppc-dev@ozlabs.org S: Supported LINUX SECURITY MODULE (LSM) FRAMEWORK -P: Chris Wright -M: chrisw@sous-sol.org +M: Chris Wright L: linux-security-module@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/chrisw/lsm-2.6.git S: Supported LLC (802.2) -P: Arnaldo Carvalho de Melo -M: acme@ghostprotocols.net +M: Arnaldo Carvalho de Melo S: Maintained F: include/linux/llc.h F: include/net/llc* F: net/llc/ LIS3LV02D ACCELEROMETER DRIVER -P: Eric Piel -M: eric.piel@tremplin-utc.net +M: Eric Piel S: Maintained F: Documentation/hwmon/lis3lv02d F: drivers/hwmon/lis3lv02d.* LM83 HARDWARE MONITOR DRIVER -P: Jean Delvare -M: khali@linux-fr.org +M: Jean Delvare L: lm-sensors@lm-sensors.org S: Maintained F: Documentation/hwmon/lm83 F: drivers/hwmon/lm83.c LM90 HARDWARE MONITOR DRIVER -P: Jean Delvare -M: khali@linux-fr.org +M: Jean Delvare L: lm-sensors@lm-sensors.org S: Maintained F: Documentation/hwmon/lm90 F: drivers/hwmon/lm90.c LOCKDEP AND LOCKSTAT -P: Peter Zijlstra -M: peterz@infradead.org -P: Ingo Molnar -M: mingo@redhat.com +M: Peter Zijlstra +M: Ingo Molnar T: git git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep.git S: Maintained F: Documentation/lockdep*.txt @@ -3668,8 +3163,7 @@ F: include/linux/lockdep.h F: kernel/lockdep* LOGICAL DISK MANAGER SUPPORT (LDM, Windows 2000/XP/Vista Dynamic Disks) -P: Richard Russon (FlatCap) -M: ldm@flatcap.org +M: "Richard Russon (FlatCap)" L: linux-ntfs-dev@lists.sourceforge.net W: http://www.linux-ntfs.org/content/view/19/37/ S: Maintained @@ -3677,8 +3171,7 @@ F: Documentation/ldm.txt F: fs/partitions/ldm.* LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI) -P: Eric Moore -M: Eric.Moore@lsi.com +M: Eric Moore M: support@lsi.com L: DL-MPTFusionLinux@lsi.com L: linux-scsi@vger.kernel.org @@ -3687,25 +3180,21 @@ S: Supported F: drivers/message/fusion/ LSILOGIC/SYMBIOS/NCR 53C8XX and 53C1010 PCI-SCSI drivers -P: Matthew Wilcox -M: matthew@wil.cx +M: Matthew Wilcox L: linux-scsi@vger.kernel.org S: Maintained F: drivers/scsi/sym53c8xx_2/ LTP (Linux Test Project) -P: Subrata Modak -M: subrata@linux.vnet.ibm.com -P: Mike Frysinger -M: vapier@gentoo.org +M: Subrata Modak +M: Mike Frysinger L: ltp-list@lists.sourceforge.net (subscribers-only) W: http://ltp.sourceforge.net/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/galak/ltp.git S: Maintained M32R ARCHITECTURE -P: Hirokazu Takata -M: takata@linux-m32r.org +M: Hirokazu Takata L: linux-m32r@ml.linux-m32r.org L: linux-m32r-ja@ml.linux-m32r.org (in Japanese) W: http://www.linux-m32r.org/ @@ -3713,10 +3202,8 @@ S: Maintained F: arch/m32r/ M68K ARCHITECTURE -P: Geert Uytterhoeven -M: geert@linux-m68k.org -P: Roman Zippel -M: zippel@linux-m68k.org +M: Geert Uytterhoeven +M: Roman Zippel L: linux-m68k@lists.linux-m68k.org W: http://www.linux-m68k.org/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k.git @@ -3725,23 +3212,20 @@ F: arch/m68k/ F: drivers/zorro/ M68K ON APPLE MACINTOSH -P: Joshua Thompson -M: funaho@jurai.org +M: Joshua Thompson W: http://www.mac.linux-m68k.org/ L: linux-m68k@lists.linux-m68k.org S: Maintained F: arch/m68k/mac/ M68K ON HP9000/300 -P: Philip Blundell -M: philb@gnu.org +M: Philip Blundell W: http://www.tazenda.demon.co.uk/phil/linux-hp S: Maintained F: arch/m68k/hp300/ MAC80211 -P: Johannes Berg -M: johannes@sipsolutions.net +M: Johannes Berg L: linux-wireless@vger.kernel.org W: http://linuxwireless.org/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6.git @@ -3751,10 +3235,8 @@ F: include/net/mac80211.h F: net/mac80211/ MAC80211 PID RATE CONTROL -P: Stefano Brivio -M: stefano.brivio@polimi.it -P: Mattias Nissler -M: mattias.nissler@gmx.de +M: Stefano Brivio +M: Mattias Nissler L: linux-wireless@vger.kernel.org W: http://linuxwireless.org/en/developers/Documentation/mac80211/RateControl/PID T: git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6.git @@ -3762,67 +3244,57 @@ S: Maintained F: net/mac80211/rc80211_pid* MACVLAN DRIVER -P: Patrick McHardy -M: kaber@trash.net +M: Patrick McHardy L: netdev@vger.kernel.org S: Maintained F: drivers/net/macvlan.c F: include/linux/if_macvlan.h MAN-PAGES: MANUAL PAGES FOR LINUX -- Sections 2, 3, 4, 5, and 7 -P: Michael Kerrisk -M: mtk.manpages@gmail.com +M: Michael Kerrisk W: http://www.kernel.org/doc/man-pages L: linux-man@vger.kernel.org S: Maintained MARVELL LIBERTAS WIRELESS DRIVER -P: Dan Williams -M: dcbw@redhat.com +M: Dan Williams L: libertas-dev@lists.infradead.org S: Maintained F: drivers/net/wireless/libertas/ MARVELL MV643XX ETHERNET DRIVER -P: Lennert Buytenhek -M: buytenh@marvell.com +M: Lennert Buytenhek L: netdev@vger.kernel.org S: Supported F: drivers/net/mv643xx_eth.* F: include/linux/mv643xx.h MARVELL SOC MMC/SD/SDIO CONTROLLER DRIVER -P: Nicolas Pitre -M: nico@cam.org +M: Nicolas Pitre S: Maintained MARVELL YUKON / SYSKONNECT DRIVER -P: Mirko Lindner -M: mlindner@syskonnect.de -P: Ralph Roesler -M: rroesler@syskonnect.de +M: Mirko Lindner +M: Ralph Roesler W: http://www.syskonnect.com S: Supported MATROX FRAMEBUFFER DRIVER -P: Petr Vandrovec -M: vandrove@vc.cvut.cz +M: Petr Vandrovec L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers) S: Maintained F: drivers/video/matrox/matroxfb_* F: include/linux/matroxfb.h MAX6650 HARDWARE MONITOR AND FAN CONTROLLER DRIVER -P: Hans J. Koch -M: hjk@linutronix.de +M: "Hans J. Koch" L: lm-sensors@lm-sensors.org S: Maintained F: Documentation/hwmon/max6650 F: drivers/hwmon/max6650.c MEDIA INPUT INFRASTRUCTURE (V4L/DVB) -P: Mauro Carvalho Chehab -M: mchehab@infradead.org +M: Mauro Carvalho Chehab P: LinuxTV.org Project L: linux-media@vger.kernel.org W: http://linuxtv.org @@ -3836,8 +3308,7 @@ F: include/linux/dvb/ F: include/linux/videodev*.h MEGARAID SCSI DRIVERS -P: Neela Syam Kolli -M: megaraidlinux@lsi.com +M: Neela Syam Kolli L: linux-scsi@vger.kernel.org W: http://megaraid.lsilogic.com S: Maintained @@ -3853,19 +3324,15 @@ F: include/linux/mm.h F: mm/ MEMORY RESOURCE CONTROLLER -P: Balbir Singh -M: balbir@linux.vnet.ibm.com -P: Pavel Emelyanov -M: xemul@openvz.org -P: KAMEZAWA Hiroyuki -M: kamezawa.hiroyu@jp.fujitsu.com +M: Balbir Singh +M: Pavel Emelyanov +M: KAMEZAWA Hiroyuki L: linux-mm@kvack.org S: Maintained F: mm/memcontrol.c MEMORY TECHNOLOGY DEVICES (MTD) -P: David Woodhouse -M: dwmw2@infradead.org +M: David Woodhouse W: http://www.linux-mtd.infradead.org/ L: linux-mtd@lists.infradead.org T: git git://git.infradead.org/mtd-2.6.git @@ -3875,8 +3342,7 @@ F: include/linux/mtd/ F: include/mtd/ MICROBLAZE ARCHITECTURE -P: Michal Simek -M: monstr@monstr.eu +M: Michal Simek L: microblaze-uclinux@itee.uq.edu.au W: http://www.monstr.eu/fdt/ T: git git://git.monstr.eu/linux-2.6-microblaze.git @@ -3884,14 +3350,12 @@ S: Supported F: arch/microblaze/ MICROTEK X6 SCANNER -P: Oliver Neukum -M: oliver@neukum.name +M: Oliver Neukum S: Maintained F: drivers/usb/image/microtek.* MIPS -P: Ralf Baechle -M: ralf@linux-mips.org +M: Ralf Baechle W: http://www.linux-mips.org/ L: linux-mips@linux-mips.org T: git git://git.linux-mips.org/pub/scm/linux.git @@ -3900,8 +3364,7 @@ F: Documentation/mips/ F: arch/mips/ MISCELLANEOUS MCA-SUPPORT -P: James Bottomley -M: James.Bottomley@HansenPartnership.com +M: James Bottomley S: Maintained F: Documentation/ia64/mca.txt F: Documentation/mca.txt @@ -3909,15 +3372,13 @@ F: drivers/mca/ F: include/linux/mca* MODULE SUPPORT -P: Rusty Russell -M: rusty@rustcorp.com.au +M: Rusty Russell S: Maintained F: include/linux/module.h F: kernel/module.c MOTION EYE VAIO PICTUREBOOK CAMERA DRIVER -P: Stelian Pop -M: stelian@popies.net +M: Stelian Pop W: http://popies.net/meye/ S: Maintained F: Documentation/video4linux/meye.txt @@ -3925,135 +3386,112 @@ F: drivers/media/video/meye.* F: include/linux/meye.h MOTOROLA IMX MMC/SD HOST CONTROLLER INTERFACE DRIVER -P: Pavel Pisa -M: ppisa@pikron.com +M: Pavel Pisa L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained F: drivers/mmc/host/imxmmc.* MOUSE AND MISC DEVICES [GENERAL] -P: Alessandro Rubini -M: rubini@ipvvis.unipv.it +M: Alessandro Rubini S: Maintained F: drivers/input/mouse/ F: include/linux/gpio_mouse.h MOXA SMARTIO/INDUSTIO/INTELLIO SERIAL CARD -P: Jiri Slaby -M: jirislaby@gmail.com +M: Jiri Slaby S: Maintained F: Documentation/serial/moxa-smartio F: drivers/char/mxser.* MSI LAPTOP SUPPORT -P: Lennart Poettering -M: mzxreary@0pointer.de +M: Lennart Poettering W: https://tango.0pointer.de/mailman/listinfo/s270-linux W: http://0pointer.de/lennart/tchibo.html S: Maintained F: drivers/platform/x86/msi-laptop.c MULTIFUNCTION DEVICES (MFD) -P: Samuel Ortiz -M: sameo@linux.intel.com +M: Samuel Ortiz T: git git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6.git S: Supported F: drivers/mfd/ MULTIMEDIA CARD (MMC), SECURE DIGITAL (SD) AND SDIO SUBSYSTEM -P: Pierre Ossman -M: pierre@ossman.eu +M: Pierre Ossman S: Maintained F: drivers/mmc/ F: include/linux/mmc/ MULTIMEDIA CARD (MMC) ETC. OVER SPI -P: David Brownell -M: dbrownell@users.sourceforge.net +M: David Brownell S: Odd Fixes F: drivers/mmc/host/mmc_spi.c F: include/linux/spi/mmc_spi.h MULTISOUND SOUND DRIVER -P: Andrew Veliath -M: andrewtv@usa.net +M: Andrew Veliath S: Maintained F: Documentation/sound/oss/MultiSound F: sound/oss/msnd* MULTITECH MULTIPORT CARD (ISICOM) -P: Jiri Slaby -M: jirislaby@gmail.com +M: Jiri Slaby S: Maintained F: drivers/char/isicom.c F: include/linux/isicom.h MUSB MULTIPOINT HIGH SPEED DUAL-ROLE CONTROLLER -P: Felipe Balbi -M: felipe.balbi@nokia.com +M: Felipe Balbi L: linux-usb@vger.kernel.org T: git git://gitorious.org/musb/mainline.git S: Maintained F: drivers/usb/musb/ MYRICOM MYRI-10G 10GbE DRIVER (MYRI10GE) -P: Andrew Gallatin -M: gallatin@myri.com -P: Brice Goglin -M: brice@myri.com +M: Andrew Gallatin +M: Brice Goglin L: netdev@vger.kernel.org W: http://www.myri.com/scs/download-Myri10GE.html S: Supported F: drivers/net/myri10ge/ NATSEMI ETHERNET DRIVER (DP8381x) -P: Tim Hockin -M: thockin@hockin.org +M: Tim Hockin S: Maintained F: drivers/net/natsemi.c NCP FILESYSTEM -P: Petr Vandrovec -M: vandrove@vc.cvut.cz +M: Petr Vandrovec L: linware@sh.cvut.cz S: Maintained F: fs/ncpfs/ NCR DUAL 700 SCSI DRIVER (MICROCHANNEL) -P: James E.J. Bottomley -M: James.Bottomley@HansenPartnership.com +M: "James E.J. Bottomley" L: linux-scsi@vger.kernel.org S: Maintained F: drivers/scsi/NCR_D700.* NETEFFECT IWARP RNIC DRIVER (IW_NES) -P: Faisal Latif -M: faisal.latif@intel.com -P: Chien Tung -M: chien.tin.tung@intel.com +M: Faisal Latif +M: Chien Tung L: general@lists.openfabrics.org W: http://www.neteffect.com S: Supported F: drivers/infiniband/hw/nes/ NETEM NETWORK EMULATOR -P: Stephen Hemminger -M: shemminger@linux-foundation.org +M: Stephen Hemminger L: netem@lists.linux-foundation.org S: Maintained F: net/sched/sch_netem.c NETERION (S2IO) 10GbE DRIVER (xframe/vxge) -P: Ramkrishna Vepa -M: ram.vepa@neterion.com -P: Rastapur Santosh -M: santosh.rastapur@neterion.com -P: Sivakumar Subramani -M: sivakumar.subramani@neterion.com -P: Sreenivasa Honnur -M: sreenivasa.honnur@neterion.com -P: Anil Murthy -M: anil.murthy@neterion.com +M: Ramkrishna Vepa +M: Rastapur Santosh +M: Sivakumar Subramani +M: Sreenivasa Honnur +M: Anil Murthy L: netdev@vger.kernel.org W: http://trac.neterion.com/cgi-bin/trac.cgi/wiki/Linux?Anonymous W: http://trac.neterion.com/cgi-bin/trac.cgi/wiki/X3100Linux?Anonymous @@ -4067,8 +3505,7 @@ P: Marc Boucher P: James Morris P: Harald Welte P: Jozsef Kadlecsik -P: Patrick McHardy -M: kaber@trash.net +M: Patrick McHardy L: netfilter-devel@vger.kernel.org L: netfilter@vger.kernel.org L: coreteam@netfilter.org @@ -4084,8 +3521,7 @@ F: net/*/netfilter/ F: net/netfilter/ NETLABEL -P: Paul Moore -M: paul.moore@hp.com +M: Paul Moore W: http://netlabel.sf.net L: netdev@vger.kernel.org S: Supported @@ -4094,8 +3530,7 @@ F: include/net/netlabel.h F: net/netlabel/ NETROM NETWORK LAYER -P: Ralf Baechle -M: ralf@linux-mips.org +M: Ralf Baechle L: linux-hams@vger.kernel.org W: http://www.linux-ax25.org/ S: Maintained @@ -4104,16 +3539,14 @@ F: include/net/netrom.h F: net/netrom/ NETWORK BLOCK DEVICE (NBD) -P: Paul Clements -M: Paul.Clements@steeleye.com +M: Paul Clements S: Maintained F: Documentation/blockdev/nbd.txt F: drivers/block/nbd.c F: include/linux/nbd.h NETWORKING [GENERAL] -P: David S. Miller -M: davem@davemloft.net +M: "David S. Miller" L: netdev@vger.kernel.org W: http://www.linuxfoundation.org/en/Net T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.git @@ -4122,18 +3555,12 @@ F: net/ F: include/net/ NETWORKING [IPv4/IPv6] -P: David S. Miller -M: davem@davemloft.net -P: Alexey Kuznetsov -M: kuznet@ms2.inr.ac.ru -P: Pekka Savola (ipv6) -M: pekkas@netcore.fi -P: James Morris -M: jmorris@namei.org -P: Hideaki YOSHIFUJI -M: yoshfuji@linux-ipv6.org -P: Patrick McHardy -M: kaber@trash.net +M: "David S. Miller" +M: Alexey Kuznetsov +M: "Pekka Savola (ipv6)" +M: James Morris +M: Hideaki YOSHIFUJI +M: Patrick McHardy L: netdev@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.git S: Maintained @@ -4142,14 +3569,12 @@ F: net/ipv6/ F: include/net/ip* NETWORKING [LABELED] (NetLabel, CIPSO, Labeled IPsec, SECMARK) -P: Paul Moore -M: paul.moore@hp.com +M: Paul Moore L: netdev@vger.kernel.org S: Maintained NETWORKING [WIRELESS] -P: John W. Linville -M: linville@tuxdriver.com +M: "John W. Linville" L: linux-wireless@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6.git S: Maintained @@ -4165,16 +3590,14 @@ S: Odd Fixes F: drivers/net/ NETXEN (1/10) GbE SUPPORT -P: Dhananjay Phadke -M: dhananjay@netxen.com +M: Dhananjay Phadke L: netdev@vger.kernel.org W: http://www.netxen.com S: Supported F: drivers/net/netxen/ NFS, SUNRPC, AND LOCKD CLIENTS -P: Trond Myklebust -M: Trond.Myklebust@netapp.com +M: Trond Myklebust L: linux-nfs@vger.kernel.org W: http://client.linux-nfs.org T: git git://git.linux-nfs.org/pub/linux/nfs-2.6.git @@ -4188,17 +3611,14 @@ F: include/linux/nfs* F: include/linux/sunrpc/ NI5010 NETWORK DRIVER -P: Jan-Pascal van Best -M: janpascal@vanbest.org -P: Andreas Mohr -M: andi@lisas.de +M: Jan-Pascal van Best +M: Andreas Mohr L: netdev@vger.kernel.org S: Maintained F: drivers/net/ni5010.* NILFS2 FILESYSTEM -P: KONISHI Ryusuke -M: konishi.ryusuke@lab.ntt.co.jp +M: KONISHI Ryusuke L: users@nilfs.org W: http://www.nilfs.org/en/ S: Supported @@ -4207,26 +3627,22 @@ F: fs/nilfs2/ F: include/linux/nilfs2_fs.h NINJA SCSI-3 / NINJA SCSI-32Bi (16bit/CardBus) PCMCIA SCSI HOST ADAPTER DRIVER -P: YOKOTA Hiroshi -M: yokota@netlab.is.tsukuba.ac.jp +M: YOKOTA Hiroshi W: http://www.netlab.is.tsukuba.ac.jp/~yokota/izumi/ninja/ S: Maintained F: Documentation/scsi/NinjaSCSI.txt F: drivers/scsi/pcmcia/nsp_* NINJA SCSI-32Bi/UDE PCI/CARDBUS SCSI HOST ADAPTER DRIVER -P: GOTO Masanori -M: gotom@debian.or.jp -P: YOKOTA Hiroshi -M: yokota@netlab.is.tsukuba.ac.jp +M: GOTO Masanori +M: YOKOTA Hiroshi W: http://www.netlab.is.tsukuba.ac.jp/~yokota/izumi/ninja/ S: Maintained F: Documentation/scsi/NinjaSCSI.txt F: drivers/scsi/nsp32* NTFS FILESYSTEM -P: Anton Altaparmakov -M: aia21@cantab.net +M: Anton Altaparmakov L: linux-ntfs-dev@lists.sourceforge.net W: http://www.linux-ntfs.org/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/aia21/ntfs-2.6.git @@ -4235,16 +3651,14 @@ F: Documentation/filesystems/ntfs.txt F: fs/ntfs/ NVIDIA (rivafb and nvidiafb) FRAMEBUFFER DRIVER -P: Antonino Daplas -M: adaplas@gmail.com +M: Antonino Daplas L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers) S: Maintained F: drivers/video/riva/ F: drivers/video/nvidia/ OMAP SUPPORT -P: Tony Lindgren -M: tony@atomide.com +M: "Tony Lindgren " L: linux-omap@vger.kernel.org W: http://www.muru.com/linux/omap/ W: http://linux.omap.com/ @@ -4253,97 +3667,83 @@ S: Maintained F: arch/arm/*omap* OMAP CLOCK FRAMEWORK SUPPORT -P: Paul Walmsley -M: paul@pwsan.com +M: Paul Walmsley L: linux-omap@vger.kernel.org S: Maintained F: arch/arm/*omap*/*clock* OMAP POWER MANAGEMENT SUPPORT -P: Kevin Hilman -M: khilman@deeprootsystems.com +M: Kevin Hilman L: linux-omap@vger.kernel.org S: Maintained F: arch/arm/*omap*/*pm* OMAP AUDIO SUPPORT -P: Jarkko Nikula -M: jhnikula@gmail.com +M: Jarkko Nikula L: alsa-devel@alsa-project.org (subscribers-only) L: linux-omap@vger.kernel.org S: Maintained F: sound/soc/omap/ OMAP FRAMEBUFFER SUPPORT -P: Imre Deak -M: imre.deak@nokia.com +M: Imre Deak L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers) L: linux-omap@vger.kernel.org S: Maintained F: drivers/video/omap/ OMAP MMC SUPPORT -P: Jarkko Lavinen -M: jarkko.lavinen@nokia.com +M: Jarkko Lavinen L: linux-omap@vger.kernel.org S: Maintained F: drivers/mmc/host/*omap* OMAP RANDOM NUMBER GENERATOR SUPPORT -P: Deepak Saxena -M: dsaxena@plexity.net +M: Deepak Saxena S: Maintained F: drivers/char/hw_random/omap-rng.c OMAP USB SUPPORT -P: Felipe Balbi -M: felipe.balbi@nokia.com -P: David Brownell -M: dbrownell@users.sourceforge.net +M: Felipe Balbi +M: David Brownell L: linux-usb@vger.kernel.org L: linux-omap@vger.kernel.org S: Maintained OMFS FILESYSTEM -P: Bob Copeland -M: me@bobcopeland.com +M: Bob Copeland L: linux-karma-devel@lists.sourceforge.net S: Maintained F: Documentation/filesystems/omfs.txt F: fs/omfs/ OMNIKEY CARDMAN 4000 DRIVER -P: Harald Welte -M: laforge@gnumonks.org +M: Harald Welte S: Maintained F: drivers/char/pcmcia/cm4000_cs.c F: include/linux/cm4000_cs.h OMNIKEY CARDMAN 4040 DRIVER -P: Harald Welte -M: laforge@gnumonks.org +M: Harald Welte S: Maintained F: drivers/char/pcmcia/cm4040_cs.* OMNIVISION OV7670 SENSOR DRIVER -P: Jonathan Corbet -M: corbet@lwn.net +M: Jonathan Corbet L: linux-media@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git S: Maintained F: drivers/media/video/ov7670.c ONENAND FLASH DRIVER -P: Kyungmin Park -M: kyungmin.park@samsung.com +M: Kyungmin Park L: linux-mtd@lists.infradead.org S: Maintained F: drivers/mtd/onenand/ F: include/linux/mtd/onenand*.h ONSTREAM SCSI TAPE DRIVER -P: Willem Riede -M: osst@riede.org +M: Willem Riede L: osst-users@lists.sourceforge.net L: linux-scsi@vger.kernel.org S: Maintained @@ -4351,16 +3751,14 @@ F: drivers/scsi/osst* F: drivers/scsi/st* OPENCORES I2C BUS DRIVER -P: Peter Korsgaard -M: jacmet@sunsite.dk +M: Peter Korsgaard L: linux-i2c@vger.kernel.org S: Maintained F: Documentation/i2c/busses/i2c-ocores F: drivers/i2c/busses/i2c-ocores.c OPROFILE -P: Robert Richter -M: robert.richter@amd.com +M: Robert Richter L: oprofile-list@lists.sf.net S: Maintained F: arch/*/oprofile/ @@ -4368,10 +3766,8 @@ F: drivers/oprofile/ F: include/linux/oprofile.h ORACLE CLUSTER FILESYSTEM 2 (OCFS2) -P: Mark Fasheh -M: mfasheh@suse.com -P: Joel Becker -M: joel.becker@oracle.com +M: Mark Fasheh +M: Joel Becker L: ocfs2-devel@oss.oracle.com (moderated for non-subscribers) W: http://oss.oracle.com/projects/ocfs2/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2.git @@ -4381,10 +3777,8 @@ F: Documentation/filesystems/dlmfs.txt F: fs/ocfs2/ ORINOCO DRIVER -P: Pavel Roskin -M: proski@gnu.org -P: David Gibson -M: hermes@gibson.dropbear.id.au +M: Pavel Roskin +M: David Gibson L: linux-wireless@vger.kernel.org L: orinoco-users@lists.sourceforge.net L: orinoco-devel@lists.sourceforge.net @@ -4393,10 +3787,8 @@ S: Maintained F: drivers/net/wireless/orinoco/ OSD LIBRARY and FILESYSTEM -P: Boaz Harrosh -M: bharrosh@panasas.com -P: Benny Halevy -M: bhalevy@panasas.com +M: Boaz Harrosh +M: Benny Halevy L: osd-dev@open-osd.org W: http://open-osd.org T: git git://git.open-osd.org/open-osd.git @@ -4406,8 +3798,7 @@ F: drivers/include/scsi/osd_* F: fs/exofs/ P54 WIRELESS DRIVER -P: Michael Wu -M: flamingice@sourmilk.net +M: Michael Wu L: linux-wireless@vger.kernel.org W: http://prism54.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mwu/mac80211-drivers.git @@ -4415,30 +3806,25 @@ S: Maintained F: drivers/net/wireless/p54/ PA SEMI ETHERNET DRIVER -P: Olof Johansson -M: olof@lixom.net +M: Olof Johansson L: netdev@vger.kernel.org S: Maintained F: drivers/net/pasemi_mac.* PA SEMI SMBUS DRIVER -P: Olof Johansson -M: olof@lixom.net +M: Olof Johansson L: linux-i2c@vger.kernel.org S: Maintained F: drivers/i2c/busses/i2c-pasemi.c PANASONIC LAPTOP ACPI EXTRAS DRIVER -P: Harald Welte -M: laforge@gnumonks.org +M: Harald Welte S: Maintained F: drivers/platform/x86/panasonic-laptop.c PANASONIC MN10300/AM33 PORT -P: David Howells -M: dhowells@redhat.com -P: Koichi Yasutake -M: yasutake.koichi@jp.panasonic.com +M: David Howells +M: Koichi Yasutake L: linux-am33-list@redhat.com (moderated for non-subscribers) W: ftp://ftp.redhat.com/pub/redhat/gnupro/AM33/ S: Maintained @@ -4454,14 +3840,10 @@ F: drivers/char/ppdev.c F: include/linux/ppdev.h PARAVIRT_OPS INTERFACE -P: Jeremy Fitzhardinge -M: jeremy@xensource.com -P: Chris Wright -M: chrisw@sous-sol.org -P: Alok Kataria -M: akataria@vmware.com -P: Rusty Russell -M: rusty@rustcorp.com.au +M: Jeremy Fitzhardinge +M: Chris Wright +M: Alok Kataria +M: Rusty Russell L: virtualization@lists.osdl.org S: Supported F: Documentation/ia64/paravirt_ops.txt @@ -4469,8 +3851,7 @@ F: arch/*/kernel/paravirt* F: arch/*/include/asm/paravirt.h PARIDE DRIVERS FOR PARALLEL PORT IDE DEVICES -P: Tim Waugh -M: tim@cyberelk.net +M: Tim Waugh L: linux-parport@lists.infradead.org (subscribers-only) W: http://www.torque.net/linux-pp.html S: Maintained @@ -4478,10 +3859,8 @@ F: Documentation/blockdev/paride.txt F: drivers/block/paride/ PARISC ARCHITECTURE -P: Kyle McMartin -M: kyle@mcmartin.ca -P: Helge Deller -M: deller@gmx.de +M: Kyle McMartin +M: Helge Deller L: linux-parisc@vger.kernel.org W: http://www.parisc-linux.org/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git @@ -4490,37 +3869,32 @@ F: arch/parisc/ F: drivers/parisc/ PC87360 HARDWARE MONITORING DRIVER -P: Jim Cromie -M: jim.cromie@gmail.com +M: Jim Cromie L: lm-sensors@lm-sensors.org S: Maintained F: Documentation/hwmon/pc87360 F: drivers/hwmon/pc87360.c PC8736x GPIO DRIVER -P: Jim Cromie -M: jim.cromie@gmail.com +M: Jim Cromie S: Maintained F: drivers/char/pc8736x_gpio.c PCA9532 LED DRIVER -P: Riku Voipio -M: riku.voipio@iki.fi +M: Riku Voipio S: Maintained F: drivers/leds/leds-pca9532.c F: include/linux/leds-pca9532.h PCI ERROR RECOVERY -P: Linas Vepstas -M: linas@austin.ibm.com +M: Linas Vepstas L: linux-pci@vger.kernel.org S: Supported F: Documentation/PCI/pci-error-recovery.txt F: Documentation/powerpc/eeh-pci-error-recovery.txt PCI SUBSYSTEM -P: Jesse Barnes -M: jbarnes@virtuousgeek.org +M: Jesse Barnes L: linux-pci@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6.git S: Supported @@ -4529,8 +3903,7 @@ F: drivers/pci/ F: include/linux/pci* PCIE HOTPLUG DRIVER -P: Kristen Carlson Accardi -M: kristen.c.accardi@intel.com +M: Kristen Carlson Accardi L: linux-pci@vger.kernel.org S: Supported F: drivers/pci/pcie/ @@ -4546,113 +3919,94 @@ F: drivers/pcmcia/ F: include/pcmcia/ PCNET32 NETWORK DRIVER -P: Don Fry -M: pcnet32@verizon.net +M: Don Fry L: netdev@vger.kernel.org S: Maintained F: drivers/net/pcnet32.c PER-TASK DELAY ACCOUNTING -P: Balbir Singh -M: balbir@linux.vnet.ibm.com +M: Balbir Singh S: Maintained F: include/linux/delayacct.h F: kernel/delayacct.c PERFORMANCE COUNTER SUBSYSTEM -P: Peter Zijlstra -M: a.p.zijlstra@chello.nl -P: Paul Mackerras -M: paulus@samba.org -P: Ingo Molnar -M: mingo@elte.hu +M: Peter Zijlstra +M: Paul Mackerras +M: Ingo Molnar S: Supported PERSONALITY HANDLING -P: Christoph Hellwig -M: hch@infradead.org +M: Christoph Hellwig L: linux-abi-devel@lists.sourceforge.net S: Maintained F: include/linux/personality.h PHRAM MTD DRIVER -P: Joern Engel -M: joern@lazybastard.org +M: Joern Engel L: linux-mtd@lists.infradead.org S: Maintained F: drivers/mtd/devices/phram.c PKTCDVD DRIVER -P: Peter Osterlund -M: petero2@telia.com +M: Peter Osterlund S: Maintained F: drivers/block/pktcdvd.c F: include/linux/pktcdvd.h POSIX CLOCKS and TIMERS -P: Thomas Gleixner -M: tglx@linutronix.de +M: Thomas Gleixner S: Supported F: fs/timerfd.c F: include/linux/timer* F: kernel/*timer* POWER SUPPLY CLASS/SUBSYSTEM and DRIVERS -P: Anton Vorontsov -M: cbou@mail.ru -P: David Woodhouse -M: dwmw2@infradead.org +M: Anton Vorontsov +M: David Woodhouse T: git git://git.infradead.org/battery-2.6.git S: Maintained F: include/linux/power_supply.h F: drivers/power/power_supply* PNP SUPPORT -P: Adam Belay -M: abelay@mit.edu -P: Bjorn Helgaas -M: bjorn.helgaas@hp.com +M: Adam Belay +M: Bjorn Helgaas S: Maintained F: drivers/pnp/ PNXxxxx I2C DRIVER -P: Vitaly Wool -M: vitalywool@gmail.com +M: Vitaly Wool L: linux-i2c@vger.kernel.org S: Maintained F: drivers/i2c/busses/i2c-pnx.c PPP PROTOCOL DRIVERS AND COMPRESSORS -P: Paul Mackerras -M: paulus@samba.org +M: Paul Mackerras L: linux-ppp@vger.kernel.org S: Maintained F: drivers/net/ppp_* PPP OVER ATM (RFC 2364) -P: Mitchell Blank Jr -M: mitch@sfgoth.com +M: Mitchell Blank Jr S: Maintained F: net/atm/pppoatm.c F: include/linux/atmppp.h PPP OVER ETHERNET -P: Michal Ostrowski -M: mostrows@earthlink.net +M: Michal Ostrowski S: Maintained F: drivers/net/pppoe.c F: drivers/net/pppox.c PPP OVER L2TP -P: James Chapman -M: jchapman@katalix.com +M: James Chapman S: Maintained F: drivers/net/pppol2tp.c F: include/linux/if_pppol2tp.h PPS SUPPORT -P: Rodolfo Giometti -M: giometti@enneenne.com +M: Rodolfo Giometti W: http://wiki.enneenne.com/index.php/LinuxPPS_support L: linuxpps@ml.enneenne.com (subscribers-only) S: Maintained @@ -4661,8 +4015,7 @@ F: drivers/pps/ F: include/linux/pps*.h PREEMPTIBLE KERNEL -P: Robert Love -M: rml@tech9.net +M: Robert Love L: kpreempt-tech@lists.sourceforge.net W: ftp://ftp.kernel.org/pub/linux/kernel/people/rml/preempt-kernel S: Supported @@ -4670,37 +4023,32 @@ F: Documentation/preempt-locking.txt F: include/linux/preempt.h PRISM54 WIRELESS DRIVER -P: Luis R. Rodriguez -M: mcgrof@gmail.com +M: "Luis R. Rodriguez" L: linux-wireless@vger.kernel.org W: http://prism54.org S: Maintained F: drivers/net/wireless/prism54/ PROMISE DC4030 CACHING DISK CONTROLLER DRIVER -P: Peter Denison -M: promise@pnd-pc.demon.co.uk +M: Peter Denison W: http://www.pnd-pc.demon.co.uk/promise/ S: Maintained PROMISE SATA TX2/TX4 CONTROLLER LIBATA DRIVER -P: Mikael Pettersson -M: mikpe@it.uu.se +M: Mikael Pettersson L: linux-ide@vger.kernel.org S: Maintained F: drivers/ata/sata_promise.* PS3 NETWORK SUPPORT -P: Geoff Levand -M: geoffrey.levand@am.sony.com +M: Geoff Levand L: netdev@vger.kernel.org L: cbe-oss-dev@ozlabs.org S: Supported F: drivers/net/ps3_gelic_net.* PS3 PLATFORM SUPPORT -P: Geoff Levand -M: geoffrey.levand@am.sony.com +M: Geoff Levand L: linuxppc-dev@ozlabs.org L: cbe-oss-dev@ozlabs.org S: Supported @@ -4715,16 +4063,13 @@ F: drivers/usb/host/*ps3.c F: sound/ppc/snd_ps3* PS3VRAM DRIVER -P: Jim Paris -M: jim@jtan.com +M: Jim Paris L: cbe-oss-dev@ozlabs.org S: Maintained PTRACE SUPPORT -P: Roland McGrath -M: roland@redhat.com -P: Oleg Nesterov -M: oleg@redhat.com +M: Roland McGrath +M: Oleg Nesterov S: Maintained F: include/asm-generic/syscall.h F: include/linux/ptrace.h @@ -4733,8 +4078,7 @@ F: include/linux/tracehook.h F: kernel/ptrace.c PVRUSB2 VIDEO4LINUX DRIVER -P: Mike Isely -M: isely@pobox.com +M: Mike Isely L: pvrusb2@isely.net (subscribers-only) L: linux-media@vger.kernel.org W: http://www.isely.net/pvrusb2/ @@ -4744,10 +4088,8 @@ F: Documentation/video4linux/README.pvrusb2 F: drivers/media/video/pvrusb2/ PXA2xx/PXA3xx SUPPORT -P: Eric Miao -M: eric.y.miao@gmail.com -P: Russell King -M: linux@arm.linux.org.uk +M: Eric Miao +M: Russell King L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained F: arch/arm/mach-pxa/ @@ -4759,17 +4101,14 @@ F: sound/arm/pxa* F: sound/soc/pxa PXA168 SUPPORT -P: Eric Miao -M: eric.y.miao@gmail.com -P: Jason Chagas -M: jason.chagas@marvell.com +M: Eric Miao +M: Jason Chagas L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) T: git git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6.git S: Maintained PXA910 SUPPORT -P: Eric Miao -M: eric.y.miao@gmail.com +M: Eric Miao L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) T: git git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6.git S: Maintained @@ -4778,14 +4117,12 @@ PXA MMCI DRIVER S: Orphan PXA RTC DRIVER -P: Robert Jarzmik -M: robert.jarzmik@free.fr +M: Robert Jarzmik L: rtc-linux@googlegroups.com S: Maintained QLOGIC QLA2XXX FC-SCSI DRIVER -P: Andrew Vasquez -M: andrew.vasquez@qlogic.com +M: Andrew Vasquez M: linux-driver@qlogic.com L: linux-scsi@vger.kernel.org S: Supported @@ -4793,8 +4130,7 @@ F: Documentation/scsi/LICENSE.qla2xxx F: drivers/scsi/qla2xxx/ QLOGIC QLA3XXX NETWORK DRIVER -P: Ron Mercer -M: ron.mercer@qlogic.com +M: Ron Mercer M: linux-driver@qlogic.com L: netdev@vger.kernel.org S: Supported @@ -4802,16 +4138,14 @@ F: Documentation/networking/LICENSE.qla3xxx F: drivers/net/qla3xxx.* QLOGIC QLGE 10Gb ETHERNET DRIVER -P: Ron Mercer -M: ron.mercer@qlogic.com +M: Ron Mercer M: linux-driver@qlogic.com L: netdev@vger.kernel.org S: Supported F: drivers/net/qlge/ QNX4 FILESYSTEM -P: Anders Larsen -M: al@alarsen.net +M: Anders Larsen W: http://www.alarsen.net/linux/qnx4fs/ S: Maintained F: fs/qnx4/ @@ -4819,16 +4153,14 @@ F: include/linux/qnx4_fs.h F: include/linux/qnxtypes.h RADEON FRAMEBUFFER DISPLAY DRIVER -P: Benjamin Herrenschmidt -M: benh@kernel.crashing.org +M: Benjamin Herrenschmidt L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers) S: Maintained F: drivers/video/aty/radeon* F: include/linux/radeonfb.h RAGE128 FRAMEBUFFER DISPLAY DRIVER -P: Paul Mackerras -M: paulus@samba.org +M: Paul Mackerras L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers) S: Maintained F: drivers/video/aty/aty128fb.c @@ -4843,64 +4175,53 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/ivd/rt2x00.git F: drivers/net/wireless/rt2x00/ RAMDISK RAM BLOCK DEVICE DRIVER -P: Nick Piggin -M: npiggin@suse.de +M: Nick Piggin S: Maintained F: Documentation/blockdev/ramdisk.txt F: drivers/block/brd.c RANDOM NUMBER DRIVER -P: Matt Mackall -M: mpm@selenic.com +M: Matt Mackall S: Maintained F: drivers/char/random.c RAPIDIO SUBSYSTEM -P: Matt Porter -M: mporter@kernel.crashing.org +M: Matt Porter S: Maintained F: drivers/rapidio/ RAYLINK/WEBGEAR 802.11 WIRELESS LAN DRIVER -P: Corey Thomas -M: coreythomas@charter.net +M: Corey Thomas L: linux-wireless@vger.kernel.org S: Maintained F: drivers/net/wireless/ray* RCUTORTURE MODULE -P: Josh Triplett -M: josh@freedesktop.org -P: Paul E. McKenney -M: paulmck@linux.vnet.ibm.com +M: Josh Triplett +M: "Paul E. McKenney" S: Maintained F: Documentation/RCU/torture.txt F: kernel/rcutorture.c RDC R-321X SoC -P: Florian Fainelli -M: florian@openwrt.org +M: Florian Fainelli S: Maintained RDC R6040 FAST ETHERNET DRIVER -P: Florian Fainelli -M: florian@openwrt.org +M: Florian Fainelli L: netdev@vger.kernel.org S: Maintained F: drivers/net/r6040.c RDS - RELIABLE DATAGRAM SOCKETS -P: Andy Grover -M: andy.grover@oracle.com +M: Andy Grover L: rds-devel@oss.oracle.com (moderated for non-subscribers) S: Supported F: net/rds/ READ-COPY UPDATE (RCU) -P: Dipankar Sarma -M: dipankar@in.ibm.com -P: Paul E. McKenney -M: paulmck@linux.vnet.ibm.com +M: Dipankar Sarma +M: "Paul E. McKenney" W: http://www.rdrop.com/users/paulmck/rclock/ S: Supported F: Documentation/RCU/rcu.txt @@ -4910,16 +4231,14 @@ F: include/linux/srcu.h F: kernel/rcupdate.c REAL TIME CLOCK DRIVER -P: Paul Gortmaker -M: p_gortmaker@yahoo.com +M: Paul Gortmaker S: Maintained F: Documentation/rtc.txt F: drivers/rtc/ F: include/linux/rtc.h REAL TIME CLOCK (RTC) SUBSYSTEM -P: Alessandro Zummo -M: a.zummo@towertech.it +M: Alessandro Zummo L: rtc-linux@googlegroups.com S: Maintained F: Documentation/rtc.txt @@ -4932,8 +4251,7 @@ S: Supported F: fs/reiserfs/ RFKILL -P: Johannes Berg -M: johannes@sipsolutions.net +M: Johannes Berg L: linux-wireless@vger.kernel.org S: Maintained F Documentation/rfkill.txt @@ -4952,8 +4270,7 @@ F: Documentation/serial/rocket.txt F: drivers/char/rocket* ROSE NETWORK LAYER -P: Ralf Baechle -M: ralf@linux-mips.org +M: Ralf Baechle L: linux-hams@vger.kernel.org W: http://www.linux-ax25.org/ S: Maintained @@ -4962,8 +4279,7 @@ F: include/net/rose.h F: net/rose/ RTL8180 WIRELESS DRIVER -P: John W. Linville -M: linville@tuxdriver.com +M: "John W. Linville" L: linux-wireless@vger.kernel.org W: http://linuxwireless.org/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-testing.git @@ -4971,12 +4287,9 @@ S: Maintained F: drivers/net/wireless/rtl818* RTL8187 WIRELESS DRIVER -P: Herton Ronaldo Krzesinski -M: herton@mandriva.com.br -P: Hin-Tak Leung -M: htl10@users.sourceforge.net -P: Larry Finger -M: Larry.Finger@lwfinger.net +M: Herton Ronaldo Krzesinski +M: Hin-Tak Leung +M: Larry Finger L: linux-wireless@vger.kernel.org W: http://linuxwireless.org/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-testing.git @@ -4984,17 +4297,14 @@ S: Maintained F: drivers/net/wireless/rtl818x/rtl8187* S3 SAVAGE FRAMEBUFFER DRIVER -P: Antonino Daplas -M: adaplas@gmail.com +M: Antonino Daplas L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers) S: Maintained F: drivers/video/savage/ S390 -P: Martin Schwidefsky -M: schwidefsky@de.ibm.com -P: Heiko Carstens -M: heiko.carstens@de.ibm.com +M: Martin Schwidefsky +M: Heiko Carstens M: linux390@de.ibm.com L: linux-s390@vger.kernel.org W: http://www.ibm.com/developerworks/linux/linux390/ @@ -5002,10 +4312,8 @@ S: Supported F: arch/s390/ S390 NETWORK DRIVERS -P: Ursula Braun -M: ursula.braun@de.ibm.com -P: Frank Blaschka -M: blaschka@linux.vnet.ibm.com +M: Ursula Braun +M: Frank Blaschka M: linux390@de.ibm.com L: linux-s390@vger.kernel.org W: http://www.ibm.com/developerworks/linux/linux390/ @@ -5013,20 +4321,16 @@ S: Supported F: drivers/s390/net/ S390 ZCRYPT DRIVER -P: Felix Beck -M: felix.beck@de.ibm.com -P: Ralph Wuerthner -M: ralph.wuerthner@de.ibm.com +M: Felix Beck +M: Ralph Wuerthner M: linux390@de.ibm.com L: linux-s390@vger.kernel.org S: Supported F: drivers/s390/crypto/ S390 ZFCP DRIVER -P: Christof Schmitt -M: christof.schmitt@de.ibm.com -P: Martin Peschke -M: mp3@de.ibm.com +M: Christof Schmitt +M: Martin Peschke M: linux390@de.ibm.com L: linux-s390@vger.kernel.org W: http://www.ibm.com/developerworks/linux/linux390/ @@ -5035,8 +4339,7 @@ F: Documentation/s390/zfcpdump.txt F: drivers/s390/scsi/zfcp_* S390 IUCV NETWORK LAYER -P: Ursula Braun -M: ursula.braun@de.ibm.com +M: Ursula Braun M: linux390@de.ibm.com L: linux-s390@vger.kernel.org W: http://www.ibm.com/developerworks/linux/linux390/ @@ -5046,15 +4349,13 @@ F: include/net/iucv/ F: net/iucv/ S3C24XX SD/MMC Driver -P: Ben Dooks -M: ben-linux@fluff.org +M: Ben Dooks L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Supported F: drivers/mmc/host/s3cmci.* SAA7146 VIDEO4LINUX-2 DRIVER -P: Michael Hunold -M: michael@mihu.de +M: Michael Hunold L: linux-media@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git W: http://www.mihu.de/linux/saa7146 @@ -5064,31 +4365,26 @@ F: drivers/media/video/*7146* F: include/media/*7146* SC1200 WDT DRIVER -P: Zwane Mwaikambo -M: zwane@arm.linux.org.uk +M: Zwane Mwaikambo S: Maintained F: drivers/watchdog/sc1200wdt.c SCHEDULER -P: Ingo Molnar -M: mingo@elte.hu -P: Peter Zijlstra -M: peterz@infradead.org +M: Ingo Molnar +M: Peter Zijlstra S: Maintained F: kernel/sched* F: include/linux/sched.h SCSI CDROM DRIVER -P: Jens Axboe -M: axboe@kernel.dk +M: Jens Axboe L: linux-scsi@vger.kernel.org W: http://www.kernel.dk S: Maintained F: drivers/scsi/sr* SCSI SG DRIVER -P: Doug Gilbert -M: dgilbert@interlog.com +M: Doug Gilbert L: linux-scsi@vger.kernel.org W: http://www.torque.net/sg S: Maintained @@ -5096,8 +4392,7 @@ F: drivers/scsi/sg.c F: include/scsi/sg.h SCSI SUBSYSTEM -P: James E.J. Bottomley -M: James.Bottomley@HansenPartnership.com +M: "James E.J. Bottomley" L: linux-scsi@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6.git T: git git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6.git @@ -5107,18 +4402,15 @@ F: drivers/scsi/ F: include/scsi/ SCSI TAPE DRIVER -P: Kai Mäkisara -M: Kai.Makisara@kolumbus.fi +M: Kai Mäkisara L: linux-scsi@vger.kernel.org S: Maintained F: Documentation/scsi/st.txt F: drivers/scsi/st* SCTP PROTOCOL -P: Vlad Yasevich -M: vladislav.yasevich@hp.com -P: Sridhar Samudrala -M: sri@us.ibm.com +M: Vlad Yasevich +M: Sridhar Samudrala L: linux-sctp@vger.kernel.org W: http://lksctp.sourceforge.net S: Supported @@ -5128,8 +4420,7 @@ F: include/net/sctp/ F: net/sctp/ SCx200 CPU SUPPORT -P: Jim Cromie -M: jim.cromie@gmail.com +M: Jim Cromie S: Odd Fixes F: Documentation/i2c/busses/scx200_acb F: arch/x86/kernel/scx200_32.c @@ -5139,49 +4430,42 @@ F: drivers/mtd/maps/scx200_docflash.c F: include/linux/scx200.h SCx200 GPIO DRIVER -P: Jim Cromie -M: jim.cromie@gmail.com +M: Jim Cromie S: Maintained F: drivers/char/scx200_gpio.c F: include/linux/scx200_gpio.h SCx200 HRT CLOCKSOURCE DRIVER -P: Jim Cromie -M: jim.cromie@gmail.com +M: Jim Cromie S: Maintained F: drivers/clocksource/scx200_hrt.c SDRICOH_CS MMC/SD HOST CONTROLLER INTERFACE DRIVER -P: Sascha Sommer -M: saschasommer@freenet.de +M: Sascha Sommer L: sdricohcs-devel@lists.sourceforge.net (subscribers-only) S: Maintained F: drivers/mmc/host/sdricoh_cs.c SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) DRIVER -P: Pierre Ossman -M: pierre@ossman.eu +M: Pierre Ossman L: sdhci-devel@lists.ossman.eu S: Maintained SECURE DIGITAL HOST CONTROLLER INTERFACE, OPEN FIRMWARE BINDINGS (SDHCI-OF) -P: Anton Vorontsov -M: avorontsov@ru.mvista.com +M: Anton Vorontsov L: linuxppc-dev@ozlabs.org L: sdhci-devel@lists.ossman.eu S: Maintained F: drivers/mmc/host/sdhci.* SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) SAMSUNG DRIVER -P: Ben Dooks -M: ben-linux@fluff.org +M: Ben Dooks L: sdhci-devel@lists.ossman.eu S: Maintained F: drivers/mmc/host/sdhci-s3c.c SECURITY SUBSYSTEM -P: James Morris -M: jmorris@namei.org +M: James Morris L: linux-security-module@vger.kernel.org (suggested Cc:) T: git git://www.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6.git W: http://security.wiki.kernel.org/ @@ -5189,17 +4473,13 @@ S: Supported F: security/ SECURITY CONTACT -P: Security Officers -M: security@kernel.org +M: Security Officers S: Supported SELINUX SECURITY MODULE -P: Stephen Smalley -M: sds@tycho.nsa.gov -P: James Morris -M: jmorris@namei.org -P: Eric Paris -M: eparis@parisplace.org +M: Stephen Smalley +M: James Morris +M: Eric Paris L: selinux@tycho.nsa.gov (subscribers-only, general discussion) W: http://selinuxproject.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6.git @@ -5208,15 +4488,13 @@ F: include/linux/selinux* F: security/selinux/ SENSABLE PHANTOM -P: Jiri Slaby -M: jirislaby@gmail.com +M: Jiri Slaby S: Maintained F: drivers/misc/phantom.c F: include/linux/phantom.h SERIAL ATA (SATA) SUBSYSTEM -P: Jeff Garzik -M: jgarzik@pobox.com +M: Jeff Garzik L: linux-ide@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev.git S: Supported @@ -5225,10 +4503,8 @@ F: include/linux/ata.h F: include/linux/libata.h SERVER ENGINES 10Gbps NIC - BladeEngine 2 DRIVER -P: Sathya Perla -M: sathyap@serverengines.com -P: Subbu Seetharaman -M: subbus@serverengines.com +M: Sathya Perla +M: Subbu Seetharaman L: netdev@vger.kernel.org W: http://www.serverengines.com S: Supported @@ -5237,20 +4513,17 @@ F: drivers/net/benet/ SFC NETWORK DRIVER P: Steve Hodgson P: Ben Hutchings -P: Robert Stonehouse -M: linux-net-drivers@solarflare.com +M: Robert Stonehouse S: Supported F: drivers/net/sfc/ SGI GRU DRIVER -P: Jack Steiner -M: steiner@sgi.com +M: Jack Steiner S: Maintained F: drivers/misc/sgi-gru/ SGI SN-IA64 (Altix) SERIAL CONSOLE DRIVER -P: Pat Gefre -M: pfg@sgi.com +M: Pat Gefre L: linux-ia64@vger.kernel.org S: Supported F: Documentation/ia64/serial.txt @@ -5258,22 +4531,19 @@ F: drivers/serial/ioc?_serial.c F: include/linux/ioc?.h SGI VISUAL WORKSTATION 320 AND 540 -P: Andrey Panin -M: pazke@donpac.ru +M: Andrey Panin L: linux-visws-devel@lists.sf.net W: http://linux-visws.sf.net S: Maintained for 2.6. F: Documentation/sgi-visws.txt SGI XP/XPC/XPNET DRIVER -P: Robin Holt -M: holt@sgi.com +M: Robin Holt S: Maintained F: drivers/misc/sgi-xp/ SHARP LH SUPPORT (LH7952X & LH7A40X) -P: Marc Singer -M: elf@buici.com +M: Marc Singer W: http://projects.buici.com/arm L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only) S: Maintained @@ -5284,23 +4554,20 @@ F: drivers/usb/gadget/lh7a40* F: drivers/usb/host/ohci-lh7a40* SHPC HOTPLUG DRIVER -P: Kristen Carlson Accardi -M: kristen.c.accardi@intel.com +M: Kristen Carlson Accardi L: linux-pci@vger.kernel.org S: Supported F: drivers/pci/hotplug/shpchp* SIMTEC EB110ATX (Chalice CATS) P: Ben Dooks -P: Vincent Sanders -M: support@simtec.co.uk +M: Vincent Sanders W: http://www.simtec.co.uk/products/EB110ATX/ S: Supported SIMTEC EB2410ITX (BAST) P: Ben Dooks -P: Vincent Sanders -M: support@simtec.co.uk +M: Vincent Sanders W: http://www.simtec.co.uk/products/EB2410ITX/ S: Supported F: arch/arm/mach-s3c2410/ @@ -5308,31 +4575,27 @@ F: drivers/*/*s3c2410* F: drivers/*/*/*s3c2410* SIS 190 ETHERNET DRIVER -P: Francois Romieu -M: romieu@fr.zoreil.com +M: Francois Romieu L: netdev@vger.kernel.org S: Maintained F: drivers/net/sis190.c SIS 900/7016 FAST ETHERNET DRIVER -P: Daniele Venzano -M: venza@brownhat.org +M: Daniele Venzano W: http://www.brownhat.org/sis900.html L: netdev@vger.kernel.org S: Maintained F: drivers/net/sis900.* SIS 96X I2C/SMBUS DRIVER -P: Mark M. Hoffman -M: mhoffman@lightlink.com +M: "Mark M. Hoffman" L: linux-i2c@vger.kernel.org S: Maintained F: Documentation/i2c/busses/i2c-sis96x F: drivers/i2c/busses/i2c-sis96x.c SIS FRAMEBUFFER DRIVER -P: Thomas Winischhofer -M: thomas@winischhofer.net +M: Thomas Winischhofer W: http://www.winischhofer.net/linuxsisvga.shtml S: Maintained F: Documentation/fb/sisfb.txt @@ -5340,70 +4603,59 @@ F: drivers/video/sis/ F: include/video/sisfb.h SIS USB2VGA DRIVER -P: Thomas Winischhofer -M: thomas@winischhofer.net +M: Thomas Winischhofer W: http://www.winischhofer.at/linuxsisusbvga.shtml S: Maintained F: drivers/usb/misc/sisusbvga/ SKGE, SKY2 10/100/1000 GIGABIT ETHERNET DRIVERS -P: Stephen Hemminger -M: shemminger@linux-foundation.org +M: Stephen Hemminger L: netdev@vger.kernel.org S: Maintained F: drivers/net/skge.* F: drivers/net/sky2.* SLAB ALLOCATOR -P: Christoph Lameter -M: cl@linux-foundation.org -P: Pekka Enberg -M: penberg@cs.helsinki.fi -P: Matt Mackall -M: mpm@selenic.com +M: Christoph Lameter +M: Pekka Enberg +M: Matt Mackall L: linux-mm@kvack.org S: Maintained F: include/linux/sl?b*.h F: mm/sl?b.c SMC91x ETHERNET DRIVER -P: Nicolas Pitre -M: nico@cam.org +M: Nicolas Pitre S: Maintained F: drivers/net/smc91x.* SMSC47B397 HARDWARE MONITOR DRIVER -P: Mark M. Hoffman -M: mhoffman@lightlink.com +M: "Mark M. Hoffman" L: lm-sensors@lm-sensors.org S: Maintained F: Documentation/hwmon/smsc47b397 F: drivers/hwmon/smsc47b397.c SMSC911x ETHERNET DRIVER -P: Steve Glendinning -M: steve.glendinning@smsc.com +M: Steve Glendinning L: netdev@vger.kernel.org S: Supported F: include/linux/smsc911x.h F: drivers/net/smsc911x.* SMSC9420 PCI ETHERNET DRIVER -P: Steve Glendinning -M: steve.glendinning@smsc.com +M: Steve Glendinning L: netdev@vger.kernel.org S: Supported F: drivers/net/smsc9420.* SMX UIO Interface -P: Ben Nizette -M: bn@niasdigital.com +M: Ben Nizette S: Maintained F: drivers/uio/uio_smx.c SN-IA64 (Itanium) SUB-PLATFORM -P: Jes Sorensen -M: jes@sgi.com +M: Jes Sorensen L: linux-altix@sgi.com L: linux-ia64@vger.kernel.org W: http://www.sgi.com/altix @@ -5411,8 +4663,7 @@ S: Maintained F: arch/ia64/sn/ SOC-CAMERA V4L2 SUBSYSTEM -P: Guennadi Liakhovetski -M: g.liakhovetski@gmx.de +M: Guennadi Liakhovetski L: linux-media@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git S: Maintained @@ -5420,37 +4671,32 @@ F: include/media/v4l2* F: drivers/media/video/v4l2* SOEKRIS NET48XX LED SUPPORT -P: Chris Boot -M: bootc@bootc.net +M: Chris Boot S: Maintained F: drivers/leds/leds-net48xx.c SOFTWARE RAID (Multiple Disks) SUPPORT -P: Neil Brown -M: neilb@suse.de +M: Neil Brown L: linux-raid@vger.kernel.org S: Supported F: drivers/md/ F: include/linux/raid/ SONIC NETWORK DRIVER -P: Thomas Bogendoerfer -M: tsbogend@alpha.franken.de +M: Thomas Bogendoerfer L: netdev@vger.kernel.org S: Maintained F: drivers/net/sonic.* SONICS SILICON BACKPLANE DRIVER (SSB) -P: Michael Buesch -M: mb@bu3sch.de +M: Michael Buesch L: netdev@vger.kernel.org S: Maintained F: drivers/ssb/ F: include/linux/ssb/ SONY VAIO CONTROL DEVICE DRIVER -P: Mattia Dongili -M: malattia@linux.it +M: Mattia Dongili L: linux-acpi@vger.kernel.org W: http://www.linux.it/~malattia/wiki/index.php/Sony_drivers S: Maintained @@ -5460,17 +4706,14 @@ F: drivers/platform/x86/sony-laptop.c F: include/linux/sony-laptop.h SONY MEMORYSTICK CARD SUPPORT -P: Alex Dubov -M: oakad@yahoo.com +M: Alex Dubov W: http://tifmxx.berlios.de/ S: Maintained F: drivers/memstick/host/tifm_ms.c SOUND -P: Jaroslav Kysela -M: perex@perex.cz -P: Takashi Iwai -M: tiwai@suse.de +M: Jaroslav Kysela +M: Takashi Iwai L: alsa-devel@alsa-project.org (moderated for non-subscribers) W: http://www.alsa-project.org/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6.git @@ -5481,10 +4724,8 @@ F: include/sound/ F: sound/ SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEMENT (ASoC) -P: Liam Girdwood -M: lrg@slimlogic.co.uk -P: Mark Brown -M: broonie@opensource.wolfsonmicro.com +M: Liam Girdwood +M: Mark Brown T: git git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound-2.6.git L: alsa-devel@alsa-project.org (moderated for non-subscribers) W: http://alsa-project.org/main/index.php/ASoC @@ -5493,8 +4734,7 @@ F: sound/soc/ F: include/sound/soc* SPARC + UltraSPARC (sparc/sparc64) -P: David S. Miller -M: davem@davemloft.net +M: "David S. Miller" L: sparclinux@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6.git T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6.git @@ -5502,15 +4742,13 @@ S: Maintained F: arch/sparc/ SPECIALIX IO8+ MULTIPORT SERIAL CARD DRIVER -P: Roger Wolff -M: R.E.Wolff@BitWizard.nl +M: Roger Wolff S: Supported F: Documentation/serial/specialix.txt F: drivers/char/specialix* SPI SUBSYSTEM -P: David Brownell -M: dbrownell@users.sourceforge.net +M: David Brownell L: spi-devel-general@lists.sourceforge.net S: Maintained F: Documentation/spi/ @@ -5518,18 +4756,15 @@ F: drivers/spi/ F: include/linux/spi/ SPIDERNET NETWORK DRIVER for CELL -P: Ishizaki Kou -M: kou.ishizaki@toshiba.co.jp -P: Jens Osterkamp -M: jens@de.ibm.com +M: Ishizaki Kou +M: Jens Osterkamp L: netdev@vger.kernel.org S: Supported F: Documentation/networking/spider_net.txt F: drivers/net/spider_net* SPU FILE SYSTEM -P: Jeremy Kerr -M: jk@ozlabs.org +M: Jeremy Kerr L: linuxppc-dev@ozlabs.org L: cbe-oss-dev@ozlabs.org W: http://www.ibm.com/developerworks/power/cell/ @@ -5538,8 +4773,7 @@ F: Documentation/filesystems/spufs.txt F: arch/powerpc/platforms/cell/spufs/ SQUASHFS FILE SYSTEM -P: Phillip Lougher -M: phillip@lougher.demon.co.uk +M: Phillip Lougher L: squashfs-devel@lists.sourceforge.net (subscribers-only) W: http://squashfs.org.uk S: Maintained @@ -5547,30 +4781,25 @@ F: Documentation/filesystems/squashfs.txt F: fs/squashfs/ SRM (Alpha) environment access -P: Jan-Benedict Glaw -M: jbglaw@lug-owl.de +M: Jan-Benedict Glaw S: Maintained F: arch/alpha/kernel/srm_env.c STABLE BRANCH -P: Greg Kroah-Hartman -M: greg@kroah.com -P: Chris Wright -M: chrisw@sous-sol.org +M: Greg Kroah-Hartman +M: Chris Wright L: stable@kernel.org S: Maintained STAGING SUBSYSTEM -P: Greg Kroah-Hartman -M: gregkh@suse.de +M: Greg Kroah-Hartman T: quilt kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/ L: devel@driverdev.osuosl.org S: Maintained F: drivers/staging/ STARFIRE/DURALAN NETWORK DRIVER -P: Ion Badulescu -M: ionut@badula.org +M: Ion Badulescu S: Odd Fixes F: drivers/net/starfire* @@ -5580,15 +4809,13 @@ F: drivers/net/wireless/strip.c F: include/linux/if_strip.h STRADIS MPEG-2 DECODER DRIVER -P: Nathan Laredo -M: laredo@gnu.org +M: Nathan Laredo W: http://www.stradis.com/ S: Maintained F: drivers/media/video/stradis.c SUN3/3X -P: Sam Creasey -M: sammy@sammy.net +M: Sam Creasey W: http://sammy.net/sun3/ S: Maintained F: arch/m68k/kernel/*sun3* @@ -5596,8 +4823,7 @@ F: arch/m68k/sun3*/ F: arch/m68k/include/asm/sun3* SUPERH -P: Paul Mundt -M: lethal@linux-sh.org +M: Paul Mundt L: linux-sh@vger.kernel.org W: http://www.linux-sh.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.git @@ -5607,12 +4833,9 @@ F: arch/sh/ F: drivers/sh/ SUSPEND TO RAM -P: Len Brown -M: len.brown@intel.com -P: Pavel Machek -M: pavel@ucw.cz -P: Rafael J. Wysocki -M: rjw@sisk.pl +M: Len Brown +M: Pavel Machek +M: "Rafael J. Wysocki" L: linux-pm@lists.linux-foundation.org S: Supported F: Documentation/power/ @@ -5624,32 +4847,28 @@ F: include/linux/freezer.h F: include/linux/pm.h SVGA HANDLING -P: Martin Mares -M: mj@ucw.cz +M: Martin Mares L: linux-video@atrey.karlin.mff.cuni.cz S: Maintained F: Documentation/svga.txt F: arch/x86/boot/video* SYSV FILESYSTEM -P: Christoph Hellwig -M: hch@infradead.org +M: Christoph Hellwig S: Maintained F: Documentation/filesystems/sysv-fs.txt F: fs/sysv/ F: include/linux/sysv_fs.h TASKSTATS STATISTICS INTERFACE -P: Balbir Singh -M: balbir@linux.vnet.ibm.com +M: Balbir Singh S: Maintained F: Documentation/accounting/taskstats* F: include/linux/taskstats* F: kernel/taskstats.c TC CLASSIFIER -P: Jamal Hadi Salim -M: hadi@cyberus.ca +M: Jamal Hadi Salim L: netdev@vger.kernel.org S: Maintained F: include/linux/pkt_cls.h @@ -5657,38 +4876,31 @@ F: include/net/pkt_cls.h F: net/sched/ TCP LOW PRIORITY MODULE -P: Wong Hoi Sing, Edison -M: hswong3i@gmail.com -P: Hung Hing Lun, Mike -M: hlhung3i@gmail.com +M: "Wong Hoi Sing, Edison" +M: "Hung Hing Lun, Mike" W: http://tcp-lp-mod.sourceforge.net/ S: Maintained F: net/ipv4/tcp_lp.c TEHUTI ETHERNET DRIVER -P: Alexander Indenbaum -M: baum@tehutinetworks.net -P: Andy Gospodarek -M: andy@greyhouse.net +M: Alexander Indenbaum +M: Andy Gospodarek L: netdev@vger.kernel.org S: Supported F: drivers/net/tehuti* Telecom Clock Driver for MCPL0010 -P: Mark Gross -M: mark.gross@intel.com +M: Mark Gross S: Supported F: drivers/char/tlclk.c TENSILICA XTENSA PORT (xtensa) -P: Chris Zankel -M: chris@zankel.net +M: Chris Zankel S: Maintained F: arch/xtensa/ THINKPAD ACPI EXTRAS DRIVER -P: Henrique de Moraes Holschuh -M: ibm-acpi@hmh.eng.br +M: Henrique de Moraes Holschuh L: ibm-acpi-devel@lists.sourceforge.net W: http://ibm-acpi.sourceforge.net W: http://thinkwiki.org/wiki/Ibm-acpi @@ -5697,27 +4909,22 @@ S: Maintained F: drivers/platform/x86/thinkpad_acpi.c TI FLASH MEDIA INTERFACE DRIVER -P: Alex Dubov -M: oakad@yahoo.com +M: Alex Dubov S: Maintained F: drivers/misc/tifm* F: drivers/mmc/host/tifm_sd.c F: include/linux/tifm.h TI TWL4030 SERIES SOC CODEC DRIVER -P: Peter Ujfalusi -M: peter.ujfalusi@nokia.com +M: Peter Ujfalusi L: alsa-devel@alsa-project.org (moderated for non-subscribers) S: Maintained F: sound/soc/codecs/twl4030* TIPC NETWORK LAYER -P: Per Liden -M: per.liden@ericsson.com -P: Jon Maloy -M: jon.maloy@ericsson.com -P: Allan Stephens -M: allan.stephens@windriver.com +M: Per Liden +M: Jon Maloy +M: Allan Stephens L: tipc-discussion@lists.sourceforge.net W: http://tipc.sourceforge.net/ W: http://tipc.cslab.ericsson.net/ @@ -5728,8 +4935,7 @@ F: include/net/tipc/ F: net/tipc/ TLAN NETWORK DRIVER -P: Samuel Chessman -M: chessman@tux.org +M: Samuel Chessman L: tlan-devel@lists.sourceforge.net (subscribers-only) W: http://sourceforge.net/projects/tlan/ S: Maintained @@ -5737,10 +4943,8 @@ F: Documentation/networking/tlan.txt F: drivers/net/tlan.* TOMOYO SECURITY MODULE -P: Kentaro Takeda -M: takedakn@nttdata.co.jp -P: Tetsuo Handa -M: penguin-kernel@I-love.SAKURA.ne.jp +M: Kentaro Takeda +M: Tetsuo Handa L: tomoyo-users-en@lists.sourceforge.jp (subscribers-only, for developers and users in English) L: tomoyo-dev@lists.sourceforge.jp (subscribers-only, for developers in Japanese) L: tomoyo-users@lists.sourceforge.jp (subscribers-only, for users in Japanese) @@ -5754,8 +4958,7 @@ S: Orphan F: drivers/platform/x86/toshiba_acpi.c TOSHIBA SMM DRIVER -P: Jonathan Buzzard -M: jonathan@buzzard.org.uk +M: Jonathan Buzzard L: tlinux-users@tce.toshiba-dme.co.jp W: http://www.buzzard.org.uk/toshiba/ S: Maintained @@ -5763,41 +4966,34 @@ F: drivers/char/toshiba.c F: include/linux/toshiba.h TMIO MMC DRIVER -P: Ian Molton -M: ian@mnementh.co.uk +M: Ian Molton S: Maintained F: drivers/mmc/host/tmio_mmc.* TMPFS (SHMEM FILESYSTEM) -P: Hugh Dickins -M: hugh.dickins@tiscali.co.uk +M: Hugh Dickins L: linux-mm@kvack.org S: Maintained F: include/linux/shmem_fs.h F: mm/shmem.c TPM DEVICE DRIVER -P: Debora Velarde -M: debora@linux.vnet.ibm.com -P: Rajiv Andrade -M: srajiv@linux.vnet.ibm.com +M: Debora Velarde +M: Rajiv Andrade W: http://tpmdd.sourceforge.net -P: Marcel Selhorst -M: m.selhorst@sirrix.com +M: Marcel Selhorst W: http://www.sirrix.com L: tpmdd-devel@lists.sourceforge.net (moderated for non-subscribers) S: Maintained F: drivers/char/tpm/ TRIVIAL PATCHES -P: Jiri Kosina -M: trivial@kernel.org +M: Jiri Kosina T: git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial.git S: Maintained TTY LAYER -P: Alan Cox -M: alan@lxorguk.ukuu.org.uk +M: Alan Cox S: Maintained T: stgit http://zeniv.linux.org.uk/~alan/ttydev/ F: drivers/char/tty_* @@ -5807,17 +5003,14 @@ F: include/linux/serial.h F: include/linux/tty.h TULIP NETWORK DRIVERS -P: Grant Grundler -M: grundler@parisc-linux.org -P: Kyle McMartin -M: kyle@mcmartin.ca +M: Grant Grundler +M: Kyle McMartin L: netdev@vger.kernel.org S: Maintained F: drivers/net/tulip/ TUN/TAP driver -P: Maxim Krasnyansky -M: maxk@qualcomm.com +M: Maxim Krasnyansky L: vtun@office.satix.net W: http://vtun.sourceforge.net/tun S: Maintained @@ -5825,24 +5018,20 @@ F: Documentation/networking/tuntap.txt F: arch/um/os-Linux/drivers/ TURBOCHANNEL SUBSYSTEM -P: Maciej W. Rozycki -M: macro@linux-mips.org +M: "Maciej W. Rozycki" S: Maintained F: drivers/tc/ F: include/linux/tc.h U14-34F SCSI DRIVER -P: Dario Ballabio -M: ballabio_dario@emc.com +M: Dario Ballabio L: linux-scsi@vger.kernel.org S: Maintained F: drivers/scsi/u14-34f.c UBI FILE SYSTEM (UBIFS) -P: Artem Bityutskiy -M: dedekind@infradead.org -P: Adrian Hunter -M: adrian.hunter@nokia.com +M: Artem Bityutskiy +M: Adrian Hunter L: linux-mtd@lists.infradead.org T: git git://git.infradead.org/ubifs-2.6.git W: http://www.linux-mtd.infradead.org/doc/ubifs.html @@ -5851,37 +5040,32 @@ F: Documentation/filesystems/ubifs.txt F: fs/ubifs/ UCLINUX (AND M68KNOMMU) -P: Greg Ungerer -M: gerg@uclinux.org +M: Greg Ungerer W: http://www.uclinux.org/ L: uclinux-dev@uclinux.org (subscribers-only) S: Maintained F: arch/m68knommu/ UCLINUX FOR RENESAS H8/300 (H8300) -P: Yoshinori Sato -M: ysato@users.sourceforge.jp +M: Yoshinori Sato W: http://uclinux-h8.sourceforge.jp/ S: Supported UDF FILESYSTEM -P: Jan Kara -M: jack@suse.cz +M: Jan Kara W: http://linux-udf.sourceforge.net S: Maintained F: Documentation/filesystems/udf.txt F: fs/udf/ UFS FILESYSTEM -P: Evgeniy Dushistov -M: dushistov@mail.ru +M: Evgeniy Dushistov S: Maintained F: Documentation/filesystems/ufs.txt F: fs/ufs/ ULTRA-WIDEBAND (UWB) SUBSYSTEM: -P: David Vrabel -M: david.vrabel@csr.com +M: David Vrabel L: linux-usb@vger.kernel.org S: Supported F: drivers/uwb/* @@ -5889,8 +5073,7 @@ F: include/linux/uwb.h F: include/linux/uwb/ UNIFORM CDROM DRIVER -P: Jens Axboe -M: axboe@kernel.dk +M: Jens Axboe W: http://www.kernel.dk S: Maintained F: Documentation/cdrom/ @@ -5898,8 +5081,7 @@ F: drivers/cdrom/cdrom.c F: include/linux/cdrom.h UNSORTED BLOCK IMAGES (UBI) -P: Artem Bityutskiy -M: dedekind@infradead.org +M: Artem Bityutskiy W: http://www.linux-mtd.infradead.org/ L: linux-mtd@lists.infradead.org T: git git://git.infradead.org/ubi-2.6.git @@ -5909,23 +5091,20 @@ F: include/linux/mtd/ubi.h F: include/mtd/ubi-user.h USB ACM DRIVER -P: Oliver Neukum -M: oliver@neukum.name +M: Oliver Neukum L: linux-usb@vger.kernel.org S: Maintained F: Documentation/usb/acm.txt F: drivers/usb/class/cdc-acm.* USB BLOCK DRIVER (UB ub) -P: Pete Zaitcev -M: zaitcev@redhat.com +M: Pete Zaitcev L: linux-usb@vger.kernel.org S: Supported F: drivers/block/ub.c USB CDC ETHERNET DRIVER -P: Greg Kroah-Hartman -M: greg@kroah.com +M: Greg Kroah-Hartman L: linux-usb@vger.kernel.org S: Maintained W: http://www.kroah.com/linux-usb/ @@ -5933,39 +5112,34 @@ F: drivers/net/usb/cdc_*.c F: include/linux/usb/cdc.h USB CYPRESS C67X00 DRIVER -P: Peter Korsgaard -M: jacmet@sunsite.dk +M: Peter Korsgaard L: linux-usb@vger.kernel.org S: Maintained F: drivers/usb/c67x00/ USB DAVICOM DM9601 DRIVER -P: Peter Korsgaard -M: jacmet@sunsite.dk +M: Peter Korsgaard L: netdev@vger.kernel.org W: http://www.linux-usb.org/usbnet S: Maintained F: drivers/net/usb/dm9601.c USB DIAMOND RIO500 DRIVER -P: Cesar Miquel -M: miquel@df.uba.ar +M: Cesar Miquel L: rio500-users@lists.sourceforge.net W: http://rio500.sourceforge.net S: Maintained F: drivers/usb/misc/rio500* USB EHCI DRIVER -P: David Brownell -M: dbrownell@users.sourceforge.net +M: David Brownell L: linux-usb@vger.kernel.org S: Odd Fixes F: Documentation/usb/ehci.txt F: drivers/usb/host/ehci* USB ET61X[12]51 DRIVER -P: Luca Risolia -M: luca.risolia@studio.unibo.it +M: Luca Risolia L: linux-usb@vger.kernel.org L: linux-media@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git @@ -5974,8 +5148,7 @@ S: Maintained F: drivers/media/video/et61x251/ USB GADGET/PERIPHERAL SUBSYSTEM -P: David Brownell -M: dbrownell@users.sourceforge.net +M: David Brownell L: linux-usb@vger.kernel.org W: http://www.linux-usb.org/gadget S: Maintained @@ -5983,8 +5156,7 @@ F: drivers/usb/gadget/ F: include/linux/usb/gadget* USB HID/HIDBP DRIVERS (USB KEYBOARDS, MICE, REMOTE CONTROLS, ...) -P: Jiri Kosina -M: jkosina@suse.cz +M: Jiri Kosina L: linux-usb@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid.git S: Maintained @@ -5992,23 +5164,20 @@ F: Documentation/usb/hiddev.txt F: drivers/hid/usbhid/ USB ISP116X DRIVER -P: Olav Kongas -M: ok@artecdesign.ee +M: Olav Kongas L: linux-usb@vger.kernel.org S: Maintained F: drivers/usb/host/isp116x* F: include/linux/usb/isp116x.h USB KAWASAKI LSI DRIVER -P: Oliver Neukum -M: oliver@neukum.name +M: Oliver Neukum L: linux-usb@vger.kernel.org S: Maintained F: drivers/usb/serial/kl5kusb105.* USB MASS STORAGE DRIVER -P: Matthew Dharm -M: mdharm-usb@one-eyed-alien.net +M: Matthew Dharm L: linux-usb@vger.kernel.org L: usb-storage@lists.one-eyed-alien.net S: Maintained @@ -6016,31 +5185,27 @@ W: http://www.one-eyed-alien.net/~mdharm/linux-usb/ F: drivers/usb/storage/ USB OHCI DRIVER -P: David Brownell -M: dbrownell@users.sourceforge.net +M: David Brownell L: linux-usb@vger.kernel.org S: Odd Fixes F: Documentation/usb/ohci.txt F: drivers/usb/host/ohci* USB OPTION-CARD DRIVER -P: Matthias Urlichs -M: smurf@smurf.noris.de +M: Matthias Urlichs L: linux-usb@vger.kernel.org S: Maintained F: drivers/usb/serial/option.c USB OV511 DRIVER -P: Mark McClelland -M: mmcclell@bigfoot.com +M: Mark McClelland L: linux-usb@vger.kernel.org W: http://alpha.dyndns.org/ov511/ S: Maintained F: drivers/media/video/ov511.* USB PEGASUS DRIVER -P: Petko Manolov -M: petkan@users.sourceforge.net +M: Petko Manolov L: linux-usb@vger.kernel.org L: netdev@vger.kernel.org W: http://pegasus2.sourceforge.net/ @@ -6048,15 +5213,13 @@ S: Maintained F: drivers/net/usb/pegasus.* USB PRINTER DRIVER (usblp) -P: Pete Zaitcev -M: zaitcev@redhat.com +M: Pete Zaitcev L: linux-usb@vger.kernel.org S: Supported F: drivers/usb/class/usblp.c USB RTL8150 DRIVER -P: Petko Manolov -M: petkan@users.sourceforge.net +M: Petko Manolov L: linux-usb@vger.kernel.org L: netdev@vger.kernel.org W: http://pegasus2.sourceforge.net/ @@ -6064,8 +5227,7 @@ S: Maintained F: drivers/net/usb/rtl8150.c USB SE401 DRIVER -P: Jeroen Vreeken -M: pe1rxq@amsat.org +M: Jeroen Vreeken L: linux-usb@vger.kernel.org W: http://www.chello.nl/~j.vreeken/se401/ S: Maintained @@ -6073,15 +5235,13 @@ F: Documentation/video4linux/se401.txt F: drivers/media/video/se401.* USB SERIAL BELKIN F5U103 DRIVER -P: William Greathouse -M: wgreathouse@smva.com +M: William Greathouse L: linux-usb@vger.kernel.org S: Maintained F: drivers/usb/serial/belkin_sa.* USB SERIAL CYPRESS M8 DRIVER -P: Lonnie Mendez -M: dignome@gmail.com +M: Lonnie Mendez L: linux-usb@vger.kernel.org S: Maintained W: http://geocities.com/i0xox0i @@ -6089,24 +5249,20 @@ W: http://firstlight.net/cvs F: drivers/usb/serial/cypress_m8.* USB SERIAL CYBERJACK DRIVER -P: Matthias Bruestle and Harald Welte -M: support@reiner-sct.com +M: Matthias Bruestle and Harald Welte W: http://www.reiner-sct.de/support/treiber_cyberjack.php S: Maintained F: drivers/usb/serial/cyberjack.c USB SERIAL DIGI ACCELEPORT DRIVER -P: Peter Berger -M: pberger@brimson.com -P: Al Borchers -M: alborchers@steinerpoint.com +M: Peter Berger +M: Al Borchers L: linux-usb@vger.kernel.org S: Maintained F: drivers/usb/serial/digi_acceleport.c USB SERIAL DRIVER -P: Greg Kroah-Hartman -M: gregkh@suse.de +M: Greg Kroah-Hartman L: linux-usb@vger.kernel.org S: Supported F: Documentation/usb/usb-serial.txt @@ -6115,38 +5271,33 @@ F: drivers/usb/serial/usb-serial.c F: include/linux/usb/serial.h USB SERIAL EMPEG EMPEG-CAR MARK I/II DRIVER -P: Gary Brubaker -M: xavyer@ix.netcom.com +M: Gary Brubaker L: linux-usb@vger.kernel.org S: Maintained F: drivers/usb/serial/empeg.c USB SERIAL KEYSPAN DRIVER -P: Greg Kroah-Hartman -M: greg@kroah.com +M: Greg Kroah-Hartman L: linux-usb@vger.kernel.org W: http://www.kroah.com/linux/ S: Maintained F: drivers/usb/serial/*keyspan* USB SERIAL WHITEHEAT DRIVER -P: Support Department -M: support@connecttech.com +M: Support Department L: linux-usb@vger.kernel.org W: http://www.connecttech.com S: Supported F: drivers/usb/serial/whiteheat* USB SMSC95XX ETHERNET DRIVER -P: Steve Glendinning -M: steve.glendinning@smsc.com +M: Steve Glendinning L: netdev@vger.kernel.org S: Supported F: drivers/net/usb/smsc95xx.* USB SN9C1xx DRIVER -P: Luca Risolia -M: luca.risolia@studio.unibo.it +M: Luca Risolia L: linux-usb@vger.kernel.org L: linux-media@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git @@ -6156,8 +5307,7 @@ F: Documentation/video4linux/sn9c102.txt F: drivers/media/video/sn9c102/ USB SUBSYSTEM -P: Greg Kroah-Hartman -M: gregkh@suse.de +M: Greg Kroah-Hartman L: linux-usb@vger.kernel.org W: http://www.linux-usb.org T: quilt kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/ @@ -6169,15 +5319,13 @@ F: include/linux/usb.h F: include/linux/usb/ USB UHCI DRIVER -P: Alan Stern -M: stern@rowland.harvard.edu +M: Alan Stern L: linux-usb@vger.kernel.org S: Maintained F: drivers/usb/host/uhci* USB "USBNET" DRIVER FRAMEWORK -P: David Brownell -M: dbrownell@users.sourceforge.net +M: David Brownell L: netdev@vger.kernel.org W: http://www.linux-usb.org/usbnet S: Maintained @@ -6185,8 +5333,7 @@ F: drivers/net/usb/usbnet.c F: include/linux/usb/usbnet.h USB VIDEO CLASS -P: Laurent Pinchart -M: laurent.pinchart@skynet.be +M: Laurent Pinchart L: linux-uvc-devel@lists.berlios.de (subscribers-only) L: linux-media@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git @@ -6195,8 +5342,7 @@ S: Maintained F: drivers/media/video/uvc/ USB W996[87]CF DRIVER -P: Luca Risolia -M: luca.risolia@studio.unibo.it +M: Luca Risolia L: linux-usb@vger.kernel.org L: linux-media@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git @@ -6206,21 +5352,18 @@ F: Documentation/video4linux/w9968cf.txt F: drivers/media/video/w996* USB WIRELESS RNDIS DRIVER (rndis_wlan) -P: Jussi Kivilinna -M: jussi.kivilinna@mbnet.fi +M: Jussi Kivilinna L: linux-wireless@vger.kernel.org S: Maintained F: drivers/net/wireless/rndis_wlan.c USB XHCI DRIVER -P: Sarah Sharp -M: sarah.a.sharp@intel.com +M: Sarah Sharp L: linux-usb@vger.kernel.org S: Supported USB ZC0301 DRIVER -P: Luca Risolia -M: luca.risolia@studio.unibo.it +M: Luca Risolia L: linux-usb@vger.kernel.org L: linux-media@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git @@ -6230,16 +5373,14 @@ F: Documentation/video4linux/zc0301.txt F: drivers/media/video/zc0301/ USB ZD1201 DRIVER -P: Jeroen Vreeken -M: pe1rxq@amsat.org +M: Jeroen Vreeken L: linux-usb@vger.kernel.org W: http://linux-lc100020.sourceforge.net S: Maintained F: drivers/net/wireless/zd1201.* USB ZR364XX DRIVER -P: Antoine Jacquet -M: royale@zerezo.com +M: Antoine Jacquet L: linux-usb@vger.kernel.org L: linux-media@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git @@ -6249,8 +5390,7 @@ F: Documentation/video4linux/zr364xx.txt F: drivers/media/video/zr364xx.c USER-MODE LINUX (UML) -P: Jeff Dike -M: jdike@addtoit.com +M: Jeff Dike L: user-mode-linux-devel@lists.sourceforge.net L: user-mode-linux-user@lists.sourceforge.net W: http://user-mode-linux.sourceforge.net @@ -6261,26 +5401,22 @@ F: fs/hostfs/ F: fs/hppfs/ USERSPACE I/O (UIO) -P: Hans J. Koch -M: hjk@linutronix.de -P: Greg Kroah-Hartman -M: gregkh@suse.de +M: "Hans J. Koch" +M: Greg Kroah-Hartman S: Maintained F: Documentation/DocBook/uio-howto.tmpl F: drivers/uio/ F: include/linux/uio*.h UTIL-LINUX-NG PACKAGE -P: Karel Zak -M: kzak@redhat.com +M: Karel Zak L: util-linux-ng@vger.kernel.org W: http://kernel.org/~kzak/util-linux-ng/ T: git git://git.kernel.org/pub/scm/utils/util-linux-ng/util-linux-ng.git S: Maintained UVESAFB DRIVER -P: Michal Januszewski -M: spock@gentoo.org +M: Michal Januszewski L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers) W: http://dev.gentoo.org/~spock/projects/uvesafb/ S: Maintained @@ -6288,53 +5424,44 @@ F: Documentation/fb/uvesafb.txt F: drivers/video/uvesafb.* VFAT/FAT/MSDOS FILESYSTEM -P: OGAWA Hirofumi -M: hirofumi@mail.parknet.co.jp +M: OGAWA Hirofumi S: Maintained F: Documentation/filesystems/vfat.txt F: fs/fat/ VIA RHINE NETWORK DRIVER -P: Roger Luethi -M: rl@hellgate.ch +M: Roger Luethi S: Maintained F: drivers/net/via-rhine.c VIAPRO SMBUS DRIVER -P: Jean Delvare -M: khali@linux-fr.org +M: Jean Delvare L: linux-i2c@vger.kernel.org S: Maintained F: Documentation/i2c/busses/i2c-viapro F: drivers/i2c/busses/i2c-viapro.c VIA SD/MMC CARD CONTROLLER DRIVER -P: Joseph Chan -M: JosephChan@via.com.tw -P: Harald Welte -M: HaraldWelte@viatech.com +M: Joseph Chan +M: Harald Welte S: Maintained F: drivers/mmc/host/via-sdmmc.c VIA UNICHROME(PRO)/CHROME9 FRAMEBUFFER DRIVER -P: Joseph Chan -M: JosephChan@via.com.tw -P: Scott Fang -M: ScottFang@viatech.com.cn +M: Joseph Chan +M: Scott Fang L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers) S: Maintained F: drivers/video/via/ VIA VELOCITY NETWORK DRIVER -P: Francois Romieu -M: romieu@fr.zoreil.com +M: Francois Romieu L: netdev@vger.kernel.org S: Maintained F: drivers/net/via-velocity.* VLAN (802.1Q) -P: Patrick McHardy -M: kaber@trash.net +M: Patrick McHardy L: netdev@vger.kernel.org S: Maintained F: drivers/net/macvlan.c @@ -6342,18 +5469,15 @@ F: include/linux/if_*vlan.h F: net/8021q/ VLYNQ BUS -P: Florian Fainelli -M: florian@openwrt.org +M: Florian Fainelli L: openwrt-devel@lists.openwrt.org S: Maintained F: drivers/vlynq/vlynq.c F: include/linux/vlynq.h VOLTAGE AND CURRENT REGULATOR FRAMEWORK -P: Liam Girdwood -M: lrg@slimlogic.co.uk -P: Mark Brown -M: broonie@opensource.wolfsonmicro.com +M: Liam Girdwood +M: Mark Brown W: http://opensource.wolfsonmicro.com/node/15 W: http://www.slimlogic.co.uk/?p=48 T: git git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6.git @@ -6362,52 +5486,45 @@ F: drivers/regulator/ F: include/linux/regulator/ VT1211 HARDWARE MONITOR DRIVER -P: Juerg Haefliger -M: juergh@gmail.com +M: Juerg Haefliger L: lm-sensors@lm-sensors.org S: Maintained F: Documentation/hwmon/vt1211 F: drivers/hwmon/vt1211.c VT8231 HARDWARE MONITOR DRIVER -P: Roger Lucas -M: vt8231@hiddenengine.co.uk +M: Roger Lucas L: lm-sensors@lm-sensors.org S: Maintained F: drivers/hwmon/vt8231.c W1 DALLAS'S 1-WIRE BUS -P: Evgeniy Polyakov -M: johnpol@2ka.mipt.ru +M: Evgeniy Polyakov S: Maintained F: Documentation/w1/ F: drivers/w1/ W83791D HARDWARE MONITORING DRIVER -P: Marc Hulsman -M: m.hulsman@tudelft.nl +M: Marc Hulsman L: lm-sensors@lm-sensors.org S: Maintained F: Documentation/hwmon/w83791d F: drivers/hwmon/w83791d.c W83793 HARDWARE MONITORING DRIVER -P: Rudolf Marek -M: r.marek@assembler.cz +M: Rudolf Marek L: lm-sensors@lm-sensors.org S: Maintained F: Documentation/hwmon/w83793 F: drivers/hwmon/w83793.c W83L51xD SD/MMC CARD INTERFACE DRIVER -P: Pierre Ossman -M: pierre@ossman.eu +M: Pierre Ossman S: Maintained F: drivers/mmc/host/wbsd.* WATCHDOG DEVICE DRIVERS -P: Wim Van Sebroeck -M: wim@iguana.be +M: Wim Van Sebroeck T: git git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog.git S: Maintained F: Documentation/watchdog/ @@ -6415,8 +5532,7 @@ F: drivers/watchdog/ F: include/linux/watchdog.h WAVELAN NETWORK DRIVER & WIRELESS EXTENSIONS -P: Jean Tourrilhes -M: jt@hpl.hp.com +M: Jean Tourrilhes L: linux-wireless@vger.kernel.org W: http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/ S: Maintained @@ -6424,46 +5540,39 @@ F: Documentation/networking/wavelan.txt F: drivers/net/wireless/wavelan* WD7000 SCSI DRIVER -P: Miroslav Zagorac -M: zaga@fly.cc.fer.hr +M: Miroslav Zagorac L: linux-scsi@vger.kernel.org S: Maintained F: drivers/scsi/wd7000.c WIMAX STACK -P: Inaky Perez-Gonzalez -M: inaky.perez-gonzalez@intel.com +M: Inaky Perez-Gonzalez M: linux-wimax@intel.com L: wimax@linuxwimax.org S: Supported W: http://linuxwimax.org WIMEDIA LLC PROTOCOL (WLP) SUBSYSTEM -P: David Vrabel -M: david.vrabel@csr.com +M: David Vrabel S: Maintained F: include/linux/wlp.h F: drivers/uwb/wlp/ WISTRON LAPTOP BUTTON DRIVER -P: Miloslav Trmac -M: mitr@volny.cz +M: Miloslav Trmac S: Maintained F: drivers/input/misc/wistron_btns.c WL3501 WIRELESS PCMCIA CARD DRIVER -P: Arnaldo Carvalho de Melo -M: acme@ghostprotocols.net +M: Arnaldo Carvalho de Melo L: linux-wireless@vger.kernel.org W: http://oops.ghostprotocols.net:81/blog S: Maintained F: drivers/net/wireless/wl3501* WM97XX TOUCHSCREEN DRIVERS -P: Mark Brown -M: broonie@opensource.wolfsonmicro.com -P: Liam Girdwood -M: lrg@slimlogic.co.uk +M: Mark Brown +M: Liam Girdwood L: linux-input@vger.kernel.org T: git git://opensource.wolfsonmicro.com/linux-2.6-touch W: http://opensource.wolfsonmicro.com/node/7 @@ -6472,8 +5581,7 @@ F: drivers/input/touchscreen/*wm97* F: include/linux/wm97xx.h X.25 NETWORK LAYER -P: Henner Eisen -M: eis@baty.hanse.de +M: Henner Eisen L: linux-x25@vger.kernel.org S: Maintained F: Documentation/networking/x25* @@ -6481,12 +5589,9 @@ F: include/net/x25* F: net/x25/ X86 ARCHITECTURE (32-BIT AND 64-BIT) -P: Thomas Gleixner -M: tglx@linutronix.de -P: Ingo Molnar -M: mingo@redhat.com -P: H. Peter Anvin -M: hpa@zytor.com +M: Thomas Gleixner +M: Ingo Molnar +M: "H. Peter Anvin" M: x86@kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git S: Maintained @@ -6494,10 +5599,8 @@ F: Documentation/x86/ F: arch/x86/ XEN HYPERVISOR INTERFACE -P: Jeremy Fitzhardinge -M: jeremy@xensource.com -P: Chris Wright -M: chrisw@sous-sol.org +M: Jeremy Fitzhardinge +M: Chris Wright L: virtualization@lists.osdl.org L: xen-devel@lists.xensource.com S: Supported @@ -6509,8 +5612,7 @@ F: include/xen/ XFS FILESYSTEM P: Silicon Graphics Inc -P: Felix Blyakher -M: felixb@sgi.com +M: Felix Blyakher M: xfs-masters@oss.sgi.com L: xfs@oss.sgi.com W: http://oss.sgi.com/projects/xfs @@ -6520,38 +5622,33 @@ F: Documentation/filesystems/xfs.txt F: fs/xfs/ XILINX SYSTEMACE DRIVER -P: Grant Likely -M: grant.likely@secretlab.ca +M: Grant Likely W: http://www.secretlab.ca/ S: Maintained F: drivers/block/xsysace.c XILINX UARTLITE SERIAL DRIVER -P: Peter Korsgaard -M: jacmet@sunsite.dk +M: Peter Korsgaard L: linux-serial@vger.kernel.org S: Maintained F: drivers/serial/uartlite.c YAM DRIVER FOR AX.25 -P: Jean-Paul Roubelat -M: jpr@f6fbb.org +M: Jean-Paul Roubelat L: linux-hams@vger.kernel.org S: Maintained F: drivers/net/hamradio/yam* F: include/linux/yam.h YEALINK PHONE DRIVER -P: Henk Vergonet -M: Henk.Vergonet@gmail.com +M: Henk Vergonet L: usbb2k-api-dev@nongnu.org S: Maintained F: Documentation/input/yealink.txt F: drivers/input/misc/yealink.* Z8530 DRIVER FOR AX.25 -P: Joerg Reuter -M: jreuter@yaina.de +M: Joerg Reuter W: http://yaina.de/jreuter/ W: http://www.qsl.net/dl1bke/ L: linux-hams@vger.kernel.org @@ -6561,10 +5658,8 @@ F: drivers/net/hamradio/*scc.c F: drivers/net/hamradio/z8530.h ZD1211RW WIRELESS DRIVER -P: Daniel Drake -M: dsd@gentoo.org -P: Ulrich Kunitz -M: kune@deine-taler.de +M: Daniel Drake +M: Ulrich Kunitz W: http://zd1211.ath.cx/wiki/DriverRewrite L: linux-wireless@vger.kernel.org L: zd1211-devs@lists.sourceforge.net (subscribers-only) @@ -6580,14 +5675,12 @@ S: Odd Fixes F: drivers/media/video/zoran/ ZS DECSTATION Z85C30 SERIAL DRIVER -P: Maciej W. Rozycki -M: macro@linux-mips.org +M: "Maciej W. Rozycki" S: Maintained F: drivers/serial/zs.* THE REST -P: Linus Torvalds -M: torvalds@linux-foundation.org +M: Linus Torvalds L: linux-kernel@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git S: Buried alive in reporters -- cgit v1.2.3 From 2bed6eeb8cb0b5198d8f93e415ee595704bc3534 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Wed, 29 Jul 2009 15:04:32 -0700 Subject: MAINTAINERS: finish off the email address coalescing Add some touchups to the sample record. Signed-off-by: Joe Perches Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- MAINTAINERS | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index a013e963fc0..a39f3cf940b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -73,8 +73,8 @@ Note: For the hard of thinking, this list is meant to remain in alphabetical order. If you could add yourselves to it in alphabetical order that would be so much easier [Ed] -P: Person -M: Mail patches to +P: Person (obsolete) +M: Mail patches to: FullName L: Mailing list that is relevant to this area W: Web-page with status/info T: SCM tree type and location. Type is one of: git, hg, quilt, stgit. -- cgit v1.2.3 From 084bad91afd0f40ff4db9ceb56e29234c314d8d1 Mon Sep 17 00:00:00 2001 From: Kristoffer Ericson Date: Wed, 29 Jul 2009 15:04:32 -0700 Subject: MAINTAINERS: update HP Jornada 700-series and Epson s1d13xxxfb support Add the relevant git repositories and affected files to the maintainership of HP Jornada 700-series and Epson s1d13xxxfb support. Signed-off-by: Kristoffer Ericson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- MAINTAINERS | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index a39f3cf940b..66a3865da88 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -624,6 +624,9 @@ ARM/HP JORNADA 7XX MACHINE SUPPORT M: Kristoffer Ericson W: www.jlime.com S: Maintained +T: git git://git.kernel.org/pub/scm/linux/kernel/git/kristoffer/linux-hpc.git +F: arch/arm/mach-sa1100/jornada720.c +F: arch/arm/mach-sa1100/include/mach/jornada720.h ARM/INTEL IOP32X ARM ARCHITECTURE M: Lennert Buytenhek @@ -1900,6 +1903,7 @@ F: drivers/video/epson1355fb.c EPSON S1D13XXX FRAMEBUFFER DRIVER M: Kristoffer Ericson S: Maintained +T: git git://git.kernel.org/pub/scm/linux/kernel/git/kristoffer/linux-hpc.git F: drivers/video/s1d13xxxfb.c F: include/video/s1d13xxxfb.h -- cgit v1.2.3 From 5bd9052d79daa4c8beb45436c408b6de672adb82 Mon Sep 17 00:00:00 2001 From: Steve French Date: Thu, 30 Jul 2009 02:26:14 +0000 Subject: [CIFS] Updates fs/cifs/CHANGES Signed-off-by: Steve French --- fs/cifs/CHANGES | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES index 92888aa9074..651cefde385 100644 --- a/fs/cifs/CHANGES +++ b/fs/cifs/CHANGES @@ -1,3 +1,9 @@ +Version 1.60 +------------- +Fix memory leak in reconnect. Fix oops in DFS mount error path. +Set s_maxbytes to smaller (the max that vfs can handle) so that +sendfile will now work over cifs mounts again. + Version 1.59 ------------ Client uses server inode numbers (which are persistent) rather than -- cgit v1.2.3 From 5156ddce6c0a152ee7ccab2c976c6a8abc8a49b5 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Wed, 29 Jul 2009 23:04:25 -0500 Subject: powerpc/mm: Fix SMP issue with MMU context handling code In switch_mmu_context() if we call steal_context_smp() to get a context to use we shouldn't fall through and than call steal_context_up(). Doing so can be problematic in that the 'mm' that steal_context_up() ends up using will not get marked dirty in the stale_map[] for other CPUs that might have used that mm. Thus we could end up with stale TLB entries in the other CPUs that can cause all kinda of havoc. Signed-off-by: Kumar Gala --- arch/powerpc/mm/mmu_context_nohash.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/mm/mmu_context_nohash.c b/arch/powerpc/mm/mmu_context_nohash.c index 92a197117d5..b1a727def15 100644 --- a/arch/powerpc/mm/mmu_context_nohash.c +++ b/arch/powerpc/mm/mmu_context_nohash.c @@ -217,6 +217,7 @@ void switch_mmu_context(struct mm_struct *prev, struct mm_struct *next) id = steal_context_smp(id); if (id == MMU_NO_CONTEXT) goto again; + goto stolen; } #endif /* CONFIG_SMP */ id = steal_context_up(id); -- cgit v1.2.3 From c4673f9a32d7b02bcd2057763d3d368efe5809c3 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Wed, 24 Jun 2009 20:30:28 +0400 Subject: powerpc/85xx: Fix ethernet link detection on MPC8569E-MDS boards Linux isn't able to detect link changes on ethernet ports that were used by U-Boot. This is because U-Boot wrongly clears interrupt polarity bit (INTPOL, 0x400) in the extended status register (EXT_SR, 0x1b) of Marvell PHYs. There is no easy way for PHY drivers to know IRQ line polarity (we could extract it from the device tree and pass it to phydevs, but that'll be quite a lot of work), so for now just reset the PHYs to their default states. Signed-off-by: Anton Vorontsov Signed-off-by: Kumar Gala --- arch/powerpc/platforms/85xx/mpc85xx_mds.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c index 60ed9c067b1..bfb32834ab0 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c @@ -233,6 +233,19 @@ static void __init mpc85xx_mds_setup_arch(void) /* Turn UCC1 & UCC2 on */ setbits8(&bcsr_regs[8], BCSR_UCC1_GETH_EN); setbits8(&bcsr_regs[9], BCSR_UCC2_GETH_EN); + } else if (machine_is(mpc8569_mds)) { +#define BCSR7_UCC12_GETHnRST (0x1 << 2) +#define BCSR8_UEM_MARVELL_RST (0x1 << 1) + /* + * U-Boot mangles interrupt polarity for Marvell PHYs, + * so reset built-in and UEM Marvell PHYs, this puts + * the PHYs into their normal state. + */ + clrbits8(&bcsr_regs[7], BCSR7_UCC12_GETHnRST); + setbits8(&bcsr_regs[8], BCSR8_UEM_MARVELL_RST); + + setbits8(&bcsr_regs[7], BCSR7_UCC12_GETHnRST); + clrbits8(&bcsr_regs[8], BCSR8_UEM_MARVELL_RST); } iounmap(bcsr_regs); } -- cgit v1.2.3 From 8a0b177f367a8fd03dc5ba1f5a4494d1424471aa Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Wed, 1 Jul 2009 21:39:25 +0400 Subject: powerpc/85xx: Don't scan for TBI PHY addresses on MPC8569E-MDS boards Sometimes (e.g. when there are no UEMs attached to a board) fsl_pq_mdio_find_free() fails to find a spare address for a TBI PHY, this is because get_phy_id() returns bogus 0x0000ffff values (0xffffffff is expected), and therefore mdio bus probing fails with the following message: fsl-pq_mdio: probe of e0082120.mdio failed with error -16 And obviously ethernet doesn't work after this. This patch solves the problem by adding tbi-phy node into mdio node, so that we won't scan for spare addresses, we'll just use a fixed one. Signed-off-by: Anton Vorontsov Signed-off-by: Kumar Gala --- arch/powerpc/boot/dts/mpc8569mds.dts | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/powerpc/boot/dts/mpc8569mds.dts b/arch/powerpc/boot/dts/mpc8569mds.dts index a680165292f..9e4ce99e161 100644 --- a/arch/powerpc/boot/dts/mpc8569mds.dts +++ b/arch/powerpc/boot/dts/mpc8569mds.dts @@ -501,6 +501,10 @@ reg = <0x6>; device_type = "ethernet-phy"; }; + tbi-phy@11 { + reg = <0x11>; + device_type = "tbi-phy"; + }; }; mdio@3520 { #address-cells = <1>; -- cgit v1.2.3 From 1333c3d6d35bdb109ddbd4b7086cbf066a27b156 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Tue, 21 Jul 2009 01:36:43 +0400 Subject: powerpc/83xx: Fix PCI IO base address on MPC837xE-RDB boards U-Boot maps PCI IO at 0xe0300000, while current dts files specify 0xe2000000. This leads to the following oops with CONFIG_8139TOO_PIO=y. 8139too Fast Ethernet driver 0.9.28 Machine check in kernel mode. Caused by (from SRR1=41000): Transfer error ack signal Oops: Machine check, sig: 7 [#1] MPC837x RDB [...] NIP [00000900] 0x900 LR [c0439df8] rtl8139_init_board+0x238/0x524 Call Trace: [cf831d90] [c0439dcc] rtl8139_init_board+0x20c/0x524 (unreliable) [cf831de0] [c043a15c] rtl8139_init_one+0x78/0x65c [cf831e40] [c0235250] pci_call_probe+0x20/0x30 [...] This patch fixes the issue by specifying the correct PCI IO base address. Signed-off-by: Anton Vorontsov Signed-off-by: Kumar Gala --- arch/powerpc/boot/dts/mpc8377_rdb.dts | 2 +- arch/powerpc/boot/dts/mpc8378_rdb.dts | 2 +- arch/powerpc/boot/dts/mpc8379_rdb.dts | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/boot/dts/mpc8377_rdb.dts b/arch/powerpc/boot/dts/mpc8377_rdb.dts index 224b4f0704b..4f06dbc0d27 100644 --- a/arch/powerpc/boot/dts/mpc8377_rdb.dts +++ b/arch/powerpc/boot/dts/mpc8377_rdb.dts @@ -410,7 +410,7 @@ bus-range = <0 0>; ranges = <0x02000000 0x0 0x90000000 0x90000000 0x0 0x10000000 0x42000000 0x0 0x80000000 0x80000000 0x0 0x10000000 - 0x01000000 0x0 0x00000000 0xe2000000 0x0 0x00100000>; + 0x01000000 0x0 0x00000000 0xe0300000 0x0 0x00100000>; sleep = <&pmc 0x00010000>; clock-frequency = <66666666>; #interrupt-cells = <1>; diff --git a/arch/powerpc/boot/dts/mpc8378_rdb.dts b/arch/powerpc/boot/dts/mpc8378_rdb.dts index 474ea2fa3f8..aabf3437cad 100644 --- a/arch/powerpc/boot/dts/mpc8378_rdb.dts +++ b/arch/powerpc/boot/dts/mpc8378_rdb.dts @@ -394,7 +394,7 @@ bus-range = <0 0>; ranges = <0x02000000 0x0 0x90000000 0x90000000 0x0 0x10000000 0x42000000 0x0 0x80000000 0x80000000 0x0 0x10000000 - 0x01000000 0x0 0x00000000 0xe2000000 0x0 0x00100000>; + 0x01000000 0x0 0x00000000 0xe0300000 0x0 0x00100000>; sleep = <&pmc 0x00010000>; clock-frequency = <66666666>; #interrupt-cells = <1>; diff --git a/arch/powerpc/boot/dts/mpc8379_rdb.dts b/arch/powerpc/boot/dts/mpc8379_rdb.dts index d4838af8d37..9b1da864d89 100644 --- a/arch/powerpc/boot/dts/mpc8379_rdb.dts +++ b/arch/powerpc/boot/dts/mpc8379_rdb.dts @@ -424,7 +424,7 @@ bus-range = <0x0 0x0>; ranges = <0x02000000 0x0 0x90000000 0x90000000 0x0 0x10000000 0x42000000 0x0 0x80000000 0x80000000 0x0 0x10000000 - 0x01000000 0x0 0x00000000 0xe2000000 0x0 0x00100000>; + 0x01000000 0x0 0x00000000 0xe0300000 0x0 0x00100000>; sleep = <&pmc 0x00010000>; clock-frequency = <66666666>; #interrupt-cells = <1>; -- cgit v1.2.3 From 6e900de3fff01e84c96632409359a84825c54b28 Mon Sep 17 00:00:00 2001 From: Mark Ware Date: Mon, 20 Jul 2009 21:51:03 +1000 Subject: cpm_uart: Don't use alloc_bootmem in cpm_uart_cpm2.c This is another alloc_bootmem() -> kzalloc() change, this time to fix the non-fatal badness caused when booting with a cpm2_uart console. Signed-off-by: Mark Ware Signed-off-by: Kumar Gala --- drivers/serial/cpm_uart/cpm_uart_cpm2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm2.c b/drivers/serial/cpm_uart/cpm_uart_cpm2.c index 141c0a3333a..a9802e76b5f 100644 --- a/drivers/serial/cpm_uart/cpm_uart_cpm2.c +++ b/drivers/serial/cpm_uart/cpm_uart_cpm2.c @@ -132,7 +132,7 @@ int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con) memsz = L1_CACHE_ALIGN(pinfo->rx_nrfifos * pinfo->rx_fifosize) + L1_CACHE_ALIGN(pinfo->tx_nrfifos * pinfo->tx_fifosize); if (is_con) { - mem_addr = alloc_bootmem(memsz); + mem_addr = kzalloc(memsz, GFP_NOWAIT); dma_addr = virt_to_bus(mem_addr); } else -- cgit v1.2.3 From f27d4d47dcf8906c8a22908dc1d32ec641e9fbe0 Mon Sep 17 00:00:00 2001 From: Martyn Welch Date: Thu, 2 Jul 2009 15:18:35 +0100 Subject: powerpc/86xx: Update defconfig for GE Fanuc's PPC9A General update of defconfig including the following notable changes: - Enable GPIO access via sysfs on GE Fanuc's PPC9A. - Enable Highmem support. - Support for PCMCIA based daughter card. Signed-off-by: Martyn Welch Signed-off-by: Kumar Gala --- arch/powerpc/configs/86xx/gef_ppc9a_defconfig | 518 ++++++++++---------------- 1 file changed, 196 insertions(+), 322 deletions(-) diff --git a/arch/powerpc/configs/86xx/gef_ppc9a_defconfig b/arch/powerpc/configs/86xx/gef_ppc9a_defconfig index b6a23af57f4..d8354d993b2 100644 --- a/arch/powerpc/configs/86xx/gef_ppc9a_defconfig +++ b/arch/powerpc/configs/86xx/gef_ppc9a_defconfig @@ -1,26 +1,28 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:31 2009 +# Linux kernel version: 2.6.30 +# Thu Jul 2 13:55:24 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_PHYS_64BIT is not set CONFIG_ALTIVEC=y CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y CONFIG_SMP=y CONFIG_NR_CPUS=2 CONFIG_PPC32=y @@ -32,6 +34,7 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y @@ -41,7 +44,6 @@ CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_GENERIC_LOCKBREAK=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_GPIO=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set @@ -56,11 +58,13 @@ CONFIG_PPC_UDBG_16550=y CONFIG_GENERIC_TBSYNC=y CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -112,9 +116,7 @@ CONFIG_ANON_INODES=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y -# CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -127,8 +129,15 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y CONFIG_SLAB=y # CONFIG_SLUB is not set @@ -143,6 +152,10 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_USE_GENERIC_SMP_HELPERS=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -156,7 +169,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_STOP_MACHINE=y CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -216,7 +229,7 @@ CONFIG_MPIC=y # # Kernel options # -# CONFIG_HIGHMEM is not set +CONFIG_HIGHMEM=y CONFIG_TICK_ONESHOT=y # CONFIG_NO_HZ is not set CONFIG_HIGH_RES_TIMERS=y @@ -235,6 +248,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set CONFIG_BINFMT_MISC=m # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -256,9 +270,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -285,14 +299,32 @@ CONFIG_PCI_DOMAINS=y CONFIG_PCI_SYSCALL=y CONFIG_PCIEPORTBUS=y CONFIG_PCIEAER=y +# CONFIG_PCIE_ECRC is not set +# CONFIG_PCIEAER_INJECT is not set # CONFIG_PCIEASPM is not set CONFIG_ARCH_SUPPORTS_MSI=y # CONFIG_PCI_MSI is not set # CONFIG_PCI_LEGACY is not set -CONFIG_PCI_DEBUG=y # CONFIG_PCI_STUB is not set # CONFIG_PCI_IOV is not set -# CONFIG_PCCARD is not set +CONFIG_PCCARD=y +# CONFIG_PCMCIA_DEBUG is not set +CONFIG_PCMCIA=y +# CONFIG_PCMCIA_LOAD_CIS is not set +# CONFIG_PCMCIA_IOCTL is not set +# CONFIG_CARDBUS is not set + +# +# PC-card bridges +# +CONFIG_YENTA=y +# CONFIG_YENTA_O2 is not set +# CONFIG_YENTA_RICOH is not set +CONFIG_YENTA_TI=y +# CONFIG_YENTA_TOSHIBA is not set +# CONFIG_PD6729 is not set +# CONFIG_I82092 is not set +CONFIG_PCCARD_NONSTATIC=y # CONFIG_HOTPLUG_PCI is not set # CONFIG_HAS_RAPIDIO is not set @@ -353,8 +385,8 @@ CONFIG_INET_XFRM_TUNNEL=m CONFIG_INET_TUNNEL=m CONFIG_INET_XFRM_MODE_TRANSPORT=y CONFIG_INET_XFRM_MODE_TUNNEL=y -CONFIG_INET_XFRM_MODE_BEET=y -# CONFIG_INET_LRO is not set +# CONFIG_INET_XFRM_MODE_BEET is not set +CONFIG_INET_LRO=y CONFIG_INET_DIAG=y CONFIG_INET_TCP_DIAG=y # CONFIG_TCP_CONG_ADVANCED is not set @@ -380,174 +412,26 @@ CONFIG_IPV6_NDISC_NODETYPE=y CONFIG_IPV6_TUNNEL=m # CONFIG_IPV6_MULTIPLE_TABLES is not set # CONFIG_IPV6_MROUTE is not set -# CONFIG_NETLABEL is not set # CONFIG_NETWORK_SECMARK is not set -CONFIG_NETFILTER=y -# CONFIG_NETFILTER_DEBUG is not set -CONFIG_NETFILTER_ADVANCED=y -CONFIG_BRIDGE_NETFILTER=y - -# -# Core Netfilter Configuration -# -# CONFIG_NETFILTER_NETLINK_QUEUE is not set -# CONFIG_NETFILTER_NETLINK_LOG is not set -# CONFIG_NF_CONNTRACK is not set -# CONFIG_NETFILTER_TPROXY is not set -CONFIG_NETFILTER_XTABLES=m -# CONFIG_NETFILTER_XT_TARGET_CLASSIFY is not set -# CONFIG_NETFILTER_XT_TARGET_DSCP is not set -# CONFIG_NETFILTER_XT_TARGET_HL is not set -# CONFIG_NETFILTER_XT_TARGET_MARK is not set -# CONFIG_NETFILTER_XT_TARGET_NFLOG is not set -# CONFIG_NETFILTER_XT_TARGET_NFQUEUE is not set -# CONFIG_NETFILTER_XT_TARGET_RATEEST is not set -# CONFIG_NETFILTER_XT_TARGET_TRACE is not set -# CONFIG_NETFILTER_XT_TARGET_TCPMSS is not set -# CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP is not set -# CONFIG_NETFILTER_XT_MATCH_COMMENT is not set -# CONFIG_NETFILTER_XT_MATCH_DCCP is not set -# CONFIG_NETFILTER_XT_MATCH_DSCP is not set -# CONFIG_NETFILTER_XT_MATCH_ESP is not set -# CONFIG_NETFILTER_XT_MATCH_HASHLIMIT is not set -CONFIG_NETFILTER_XT_MATCH_HL=m -# CONFIG_NETFILTER_XT_MATCH_IPRANGE is not set -# CONFIG_NETFILTER_XT_MATCH_LENGTH is not set -# CONFIG_NETFILTER_XT_MATCH_LIMIT is not set -# CONFIG_NETFILTER_XT_MATCH_MAC is not set -# CONFIG_NETFILTER_XT_MATCH_MARK is not set -# CONFIG_NETFILTER_XT_MATCH_MULTIPORT is not set -# CONFIG_NETFILTER_XT_MATCH_OWNER is not set -# CONFIG_NETFILTER_XT_MATCH_POLICY is not set -# CONFIG_NETFILTER_XT_MATCH_PHYSDEV is not set -# CONFIG_NETFILTER_XT_MATCH_PKTTYPE is not set -# CONFIG_NETFILTER_XT_MATCH_QUOTA is not set -# CONFIG_NETFILTER_XT_MATCH_RATEEST is not set -# CONFIG_NETFILTER_XT_MATCH_REALM is not set -# CONFIG_NETFILTER_XT_MATCH_RECENT is not set -# CONFIG_NETFILTER_XT_MATCH_SCTP is not set -# CONFIG_NETFILTER_XT_MATCH_STATISTIC is not set -# CONFIG_NETFILTER_XT_MATCH_STRING is not set -# CONFIG_NETFILTER_XT_MATCH_TCPMSS is not set -# CONFIG_NETFILTER_XT_MATCH_TIME is not set -# CONFIG_NETFILTER_XT_MATCH_U32 is not set -# CONFIG_IP_VS is not set - -# -# IP: Netfilter Configuration -# -# CONFIG_NF_DEFRAG_IPV4 is not set -CONFIG_IP_NF_QUEUE=m -CONFIG_IP_NF_IPTABLES=m -CONFIG_IP_NF_MATCH_ADDRTYPE=m -# CONFIG_IP_NF_MATCH_AH is not set -CONFIG_IP_NF_MATCH_ECN=m -CONFIG_IP_NF_MATCH_TTL=m -CONFIG_IP_NF_FILTER=m -CONFIG_IP_NF_TARGET_REJECT=m -CONFIG_IP_NF_TARGET_LOG=m -CONFIG_IP_NF_TARGET_ULOG=m -CONFIG_IP_NF_MANGLE=m -CONFIG_IP_NF_TARGET_ECN=m -# CONFIG_IP_NF_TARGET_TTL is not set -CONFIG_IP_NF_RAW=m -# CONFIG_IP_NF_SECURITY is not set -CONFIG_IP_NF_ARPTABLES=m -CONFIG_IP_NF_ARPFILTER=m -CONFIG_IP_NF_ARP_MANGLE=m - -# -# IPv6: Netfilter Configuration -# -CONFIG_IP6_NF_QUEUE=m -CONFIG_IP6_NF_IPTABLES=m -# CONFIG_IP6_NF_MATCH_AH is not set -CONFIG_IP6_NF_MATCH_EUI64=m -CONFIG_IP6_NF_MATCH_FRAG=m -CONFIG_IP6_NF_MATCH_OPTS=m -CONFIG_IP6_NF_MATCH_HL=m -CONFIG_IP6_NF_MATCH_IPV6HEADER=m -# CONFIG_IP6_NF_MATCH_MH is not set -CONFIG_IP6_NF_MATCH_RT=m -# CONFIG_IP6_NF_TARGET_HL is not set -CONFIG_IP6_NF_TARGET_LOG=m -CONFIG_IP6_NF_FILTER=m -# CONFIG_IP6_NF_TARGET_REJECT is not set -CONFIG_IP6_NF_MANGLE=m -CONFIG_IP6_NF_RAW=m -# CONFIG_IP6_NF_SECURITY is not set -# CONFIG_BRIDGE_NF_EBTABLES is not set +# CONFIG_NETFILTER is not set # CONFIG_IP_DCCP is not set -CONFIG_IP_SCTP=m -# CONFIG_SCTP_DBG_MSG is not set -# CONFIG_SCTP_DBG_OBJCNT is not set -# CONFIG_SCTP_HMAC_NONE is not set -# CONFIG_SCTP_HMAC_SHA1 is not set -CONFIG_SCTP_HMAC_MD5=y -CONFIG_TIPC=m -# CONFIG_TIPC_ADVANCED is not set -# CONFIG_TIPC_DEBUG is not set -CONFIG_ATM=m -CONFIG_ATM_CLIP=m -# CONFIG_ATM_CLIP_NO_ICMP is not set -CONFIG_ATM_LANE=m -CONFIG_ATM_MPOA=m -CONFIG_ATM_BR2684=m -# CONFIG_ATM_BR2684_IPFILTER is not set -CONFIG_STP=m -CONFIG_BRIDGE=m +# CONFIG_IP_SCTP is not set +# CONFIG_TIPC is not set +# CONFIG_ATM is not set +# CONFIG_BRIDGE is not set # CONFIG_NET_DSA is not set -CONFIG_VLAN_8021Q=m -# CONFIG_VLAN_8021Q_GVRP is not set +# CONFIG_VLAN_8021Q is not set # CONFIG_DECNET is not set -CONFIG_LLC=m # CONFIG_LLC2 is not set # CONFIG_IPX is not set # CONFIG_ATALK is not set # CONFIG_X25 is not set # CONFIG_LAPB is not set # CONFIG_ECONET is not set -CONFIG_WAN_ROUTER=m +# CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set -CONFIG_NET_SCHED=y - -# -# Queueing/Scheduling -# -CONFIG_NET_SCH_CBQ=m -CONFIG_NET_SCH_HTB=m -CONFIG_NET_SCH_HFSC=m -CONFIG_NET_SCH_ATM=m -CONFIG_NET_SCH_PRIO=m -# CONFIG_NET_SCH_MULTIQ is not set -CONFIG_NET_SCH_RED=m -CONFIG_NET_SCH_SFQ=m -CONFIG_NET_SCH_TEQL=m -CONFIG_NET_SCH_TBF=m -CONFIG_NET_SCH_GRED=m -CONFIG_NET_SCH_DSMARK=m -CONFIG_NET_SCH_NETEM=m -# CONFIG_NET_SCH_DRR is not set - -# -# Classification -# -CONFIG_NET_CLS=y -# CONFIG_NET_CLS_BASIC is not set -CONFIG_NET_CLS_TCINDEX=m -CONFIG_NET_CLS_ROUTE4=m -CONFIG_NET_CLS_ROUTE=y -CONFIG_NET_CLS_FW=m -CONFIG_NET_CLS_U32=m -# CONFIG_CLS_U32_PERF is not set -# CONFIG_CLS_U32_MARK is not set -CONFIG_NET_CLS_RSVP=m -CONFIG_NET_CLS_RSVP6=m -# CONFIG_NET_CLS_FLOW is not set -# CONFIG_NET_EMATCH is not set -# CONFIG_NET_CLS_ACT is not set -# CONFIG_NET_CLS_IND is not set -CONFIG_NET_SCH_FIFO=y +# CONFIG_IEEE802154 is not set +# CONFIG_NET_SCHED is not set # CONFIG_DCB is not set # @@ -560,12 +444,7 @@ CONFIG_NET_PKTGEN=m # CONFIG_BT is not set # CONFIG_AF_RXRPC is not set CONFIG_FIB_RULES=y -CONFIG_WIRELESS=y -# CONFIG_CFG80211 is not set -CONFIG_WIRELESS_OLD_REGULATORY=y -# CONFIG_WIRELESS_EXT is not set -# CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set +# CONFIG_WIRELESS is not set # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -580,9 +459,9 @@ CONFIG_WIRELESS_OLD_REGULATORY=y CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_STANDALONE=y CONFIG_PREVENT_FIRMWARE_BUILD=y -# CONFIG_FW_LOADER is not set -# CONFIG_DEBUG_DRIVER is not set -# CONFIG_DEBUG_DEVRES is not set +CONFIG_FW_LOADER=y +CONFIG_FIRMWARE_IN_KERNEL=y +CONFIG_EXTRA_FIRMWARE="" # CONFIG_SYS_HYPERVISOR is not set # CONFIG_CONNECTOR is not set CONFIG_MTD=y @@ -672,6 +551,7 @@ CONFIG_MTD_PHYSMAP_OF=y CONFIG_OF_DEVICE=y CONFIG_OF_GPIO=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -707,9 +587,60 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y -# CONFIG_IDE is not set +CONFIG_IDE=y + +# +# Please see Documentation/ide/ide.txt for help/info on IDE drives +# +# CONFIG_BLK_DEV_IDE_SATA is not set +CONFIG_IDE_GD=y +CONFIG_IDE_GD_ATA=y +# CONFIG_IDE_GD_ATAPI is not set +CONFIG_BLK_DEV_IDECS=y +# CONFIG_BLK_DEV_IDECD is not set +# CONFIG_BLK_DEV_IDETAPE is not set +# CONFIG_IDE_TASK_IOCTL is not set +CONFIG_IDE_PROC_FS=y + +# +# IDE chipset support/bugfixes +# +# CONFIG_BLK_DEV_PLATFORM is not set + +# +# PCI IDE chipsets support +# +# CONFIG_BLK_DEV_GENERIC is not set +# CONFIG_BLK_DEV_OPTI621 is not set +# CONFIG_BLK_DEV_AEC62XX is not set +# CONFIG_BLK_DEV_ALI15X3 is not set +# CONFIG_BLK_DEV_AMD74XX is not set +# CONFIG_BLK_DEV_CMD64X is not set +# CONFIG_BLK_DEV_TRIFLEX is not set +# CONFIG_BLK_DEV_CS5520 is not set +# CONFIG_BLK_DEV_CS5530 is not set +# CONFIG_BLK_DEV_HPT366 is not set +# CONFIG_BLK_DEV_JMICRON is not set +# CONFIG_BLK_DEV_SC1200 is not set +# CONFIG_BLK_DEV_PIIX is not set +# CONFIG_BLK_DEV_IT8172 is not set +# CONFIG_BLK_DEV_IT8213 is not set +# CONFIG_BLK_DEV_IT821X is not set +# CONFIG_BLK_DEV_NS87415 is not set +# CONFIG_BLK_DEV_PDC202XX_OLD is not set +# CONFIG_BLK_DEV_PDC202XX_NEW is not set +# CONFIG_BLK_DEV_SVWKS is not set +# CONFIG_BLK_DEV_SIIMAGE is not set +# CONFIG_BLK_DEV_SL82C105 is not set +# CONFIG_BLK_DEV_SLC90E66 is not set +# CONFIG_BLK_DEV_TRM290 is not set +# CONFIG_BLK_DEV_VIA82CXXX is not set +# CONFIG_BLK_DEV_TC86C001 is not set +# CONFIG_BLK_DEV_IDEDMA is not set # # SCSI device support @@ -731,10 +662,6 @@ CONFIG_BLK_DEV_SR=y # CONFIG_BLK_DEV_SR_VENDOR is not set # CONFIG_CHR_DEV_SG is not set # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -751,6 +678,7 @@ CONFIG_SCSI_WAIT_SCAN=m # CONFIG_SCSI_SRP_ATTRS is not set CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -759,6 +687,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -778,7 +707,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set @@ -791,6 +719,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_NSP32 is not set # CONFIG_SCSI_DEBUG is not set # CONFIG_SCSI_SRP is not set +# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set # CONFIG_SCSI_DH is not set # CONFIG_SCSI_OSD_INITIATOR is not set CONFIG_ATA=y @@ -842,6 +771,7 @@ CONFIG_SATA_SIL=y # CONFIG_PATA_NS87415 is not set # CONFIG_PATA_OPTI is not set # CONFIG_PATA_OPTIDMA is not set +# CONFIG_PATA_PCMCIA is not set # CONFIG_PATA_PDC_OLD is not set # CONFIG_PATA_RADISYS is not set # CONFIG_PATA_RZ1000 is not set @@ -862,14 +792,17 @@ CONFIG_SATA_SIL=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y CONFIG_DUMMY=m CONFIG_BONDING=m # CONFIG_MACVLAN is not set @@ -916,6 +849,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -935,8 +869,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -963,22 +899,8 @@ CONFIG_GIANFAR=y # CONFIG_USB_PEGASUS is not set # CONFIG_USB_RTL8150 is not set # CONFIG_USB_USBNET is not set +# CONFIG_NET_PCMCIA is not set # CONFIG_WAN is not set -CONFIG_ATM_DRIVERS=y -# CONFIG_ATM_DUMMY is not set -# CONFIG_ATM_TCP is not set -# CONFIG_ATM_LANAI is not set -# CONFIG_ATM_ENI is not set -# CONFIG_ATM_FIRESTREAM is not set -# CONFIG_ATM_ZATM is not set -# CONFIG_ATM_NICSTAR is not set -# CONFIG_ATM_IDT77252 is not set -# CONFIG_ATM_AMBASSADOR is not set -# CONFIG_ATM_HORIZON is not set -# CONFIG_ATM_IA is not set -# CONFIG_ATM_FORE200E is not set -# CONFIG_ATM_HE is not set -# CONFIG_ATM_SOLOS is not set # CONFIG_FDDI is not set # CONFIG_HIPPI is not set CONFIG_PPP=m @@ -990,7 +912,6 @@ CONFIG_PPP_DEFLATE=m CONFIG_PPP_BSDCOMP=m # CONFIG_PPP_MPPE is not set CONFIG_PPPOE=m -CONFIG_PPPOATM=m # CONFIG_PPPOL2TP is not set CONFIG_SLIP=m CONFIG_SLIP_COMPRESSED=y @@ -1010,7 +931,7 @@ CONFIG_NET_POLL_CONTROLLER=y # Input device support # CONFIG_INPUT=y -CONFIG_INPUT_FF_MEMLESS=m +# CONFIG_INPUT_FF_MEMLESS is not set # CONFIG_INPUT_POLLDEV is not set # @@ -1058,6 +979,7 @@ CONFIG_DEVKMEM=y CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y # CONFIG_SERIAL_8250_PCI is not set +# CONFIG_SERIAL_8250_CS is not set CONFIG_SERIAL_8250_NR_UARTS=2 CONFIG_SERIAL_8250_RUNTIME_UARTS=2 # CONFIG_SERIAL_8250_EXTENDED is not set @@ -1080,6 +1002,14 @@ CONFIG_HW_RANDOM=y CONFIG_NVRAM=y # CONFIG_R3964 is not set # CONFIG_APPLICOM is not set + +# +# PCMCIA character devices +# +# CONFIG_SYNCLINK_CS is not set +# CONFIG_CARDMAN_4000 is not set +# CONFIG_CARDMAN_4040 is not set +# CONFIG_IPWIRELESS is not set # CONFIG_RAW_DRIVER is not set # CONFIG_TCG_TPM is not set CONFIG_DEVPORT=y @@ -1143,18 +1073,21 @@ CONFIG_DS1682=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_ARCH_REQUIRE_GPIOLIB=y CONFIG_GPIOLIB=y -# CONFIG_DEBUG_GPIO is not set -# CONFIG_GPIO_SYSFS is not set +CONFIG_GPIO_SYSFS=y # # Memory mapped GPIO expanders: @@ -1229,6 +1162,7 @@ CONFIG_SENSORS_LM92=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -1284,24 +1218,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y -# CONFIG_USB_DABUSB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1346,7 +1265,7 @@ CONFIG_HID_BELKIN=y CONFIG_HID_CHERRY=y CONFIG_HID_CHICONY=y CONFIG_HID_CYPRESS=y -# CONFIG_DRAGONRISE_FF is not set +# CONFIG_HID_DRAGONRISE is not set CONFIG_HID_EZKEY=y # CONFIG_HID_KYE is not set CONFIG_HID_GYRATION=y @@ -1363,10 +1282,11 @@ CONFIG_HID_PETALYNX=y CONFIG_HID_SAMSUNG=y CONFIG_HID_SONY=y CONFIG_HID_SUNPLUS=y -# CONFIG_GREENASIA_FF is not set +# CONFIG_HID_GREENASIA is not set +# CONFIG_HID_SMARTJOYPLUS is not set # CONFIG_HID_TOPSEED is not set -CONFIG_THRUSTMASTER_FF=m -CONFIG_ZEROPLUS_FF=m +# CONFIG_HID_THRUSTMASTER is not set +# CONFIG_HID_ZEROPLUS is not set CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y @@ -1392,6 +1312,7 @@ CONFIG_USB=y # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set CONFIG_USB_EHCI_HCD=y # CONFIG_USB_EHCI_ROOT_HUB_TT is not set # CONFIG_USB_EHCI_TT_NEWSCHED is not set @@ -1475,7 +1396,6 @@ CONFIG_USB_STORAGE=y # CONFIG_USB_IOWARRIOR is not set # CONFIG_USB_ISIGHTFW is not set # CONFIG_USB_VST is not set -# CONFIG_USB_ATM is not set # CONFIG_USB_GADGET is not set # @@ -1521,6 +1441,7 @@ CONFIG_RTC_INTF_DEV=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set CONFIG_RTC_DRV_RX8581=y +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1548,6 +1469,10 @@ CONFIG_RTC_DRV_RX8581=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1569,10 +1494,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set CONFIG_FS_POSIX_ACL=y -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1589,8 +1516,11 @@ CONFIG_INOTIFY_USER=y # # CD-ROM/DVD Filesystems # -# CONFIG_ISO9660_FS is not set -# CONFIG_UDF_FS is not set +CONFIG_ISO9660_FS=y +CONFIG_JOLIET=y +CONFIG_ZISOFS=y +CONFIG_UDF_FS=y +CONFIG_UDF_NLS=y # # DOS/FAT/NT Filesystems @@ -1598,8 +1528,8 @@ CONFIG_INOTIFY_USER=y CONFIG_FAT_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y -CONFIG_FAT_DEFAULT_CODEPAGE=437 -CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" +CONFIG_FAT_DEFAULT_CODEPAGE=850 +CONFIG_FAT_DEFAULT_IOCHARSET="ascii" # CONFIG_NTFS_FS is not set # @@ -1649,6 +1579,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set CONFIG_LOCKD=y @@ -1723,13 +1654,13 @@ CONFIG_NLS_UTF8=m # CONFIG_BITREVERSE=y CONFIG_GENERIC_FIND_LAST_BIT=y -CONFIG_CRC_CCITT=m +CONFIG_CRC_CCITT=y # CONFIG_CRC16 is not set -# CONFIG_CRC_T10DIF is not set -# CONFIG_CRC_ITU_T is not set +CONFIG_CRC_T10DIF=y +CONFIG_CRC_ITU_T=y CONFIG_CRC32=y # CONFIG_CRC7 is not set -CONFIG_LIBCRC32C=m +CONFIG_LIBCRC32C=y CONFIG_ZLIB_INFLATE=y CONFIG_ZLIB_DEFLATE=y CONFIG_DECOMPRESS_GZIP=y @@ -1738,6 +1669,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1750,75 +1682,24 @@ CONFIG_MAGIC_SYSRQ=y # CONFIG_UNUSED_SYMBOLS is not set # CONFIG_DEBUG_FS is not set # CONFIG_HEADERS_CHECK is not set -CONFIG_DEBUG_KERNEL=y -# CONFIG_DEBUG_SHIRQ is not set -CONFIG_DETECT_SOFTLOCKUP=y -# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set -CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0 -CONFIG_DETECT_HUNG_TASK=y -# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set -CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0 -CONFIG_SCHED_DEBUG=y -# CONFIG_SCHEDSTATS is not set -# CONFIG_TIMER_STATS is not set -# CONFIG_DEBUG_OBJECTS is not set -# CONFIG_DEBUG_SLAB is not set -# CONFIG_DEBUG_RT_MUTEXES is not set -# CONFIG_RT_MUTEX_TESTER is not set -# CONFIG_DEBUG_SPINLOCK is not set -# CONFIG_DEBUG_MUTEXES is not set -# CONFIG_DEBUG_SPINLOCK_SLEEP is not set -# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set -# CONFIG_DEBUG_KOBJECT is not set +# CONFIG_DEBUG_KERNEL is not set # CONFIG_DEBUG_BUGVERBOSE is not set -CONFIG_DEBUG_INFO=y -# CONFIG_DEBUG_VM is not set -# CONFIG_DEBUG_WRITECOUNT is not set # CONFIG_DEBUG_MEMORY_INIT is not set -# CONFIG_DEBUG_LIST is not set -# CONFIG_DEBUG_SG is not set -# CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set -# CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set -# CONFIG_BACKTRACE_SELF_TEST is not set -# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set -# CONFIG_FAULT_INJECTION is not set # CONFIG_LATENCYTOP is not set CONFIG_SYSCTL_SYSCALL_CHECK=y -# CONFIG_DEBUG_PAGEALLOC is not set CONFIG_HAVE_FUNCTION_TRACER=y CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_PREEMPT_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y -# CONFIG_KGDB is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 -# CONFIG_DEBUG_STACKOVERFLOW is not set -# CONFIG_DEBUG_STACK_USAGE is not set -# CONFIG_CODE_PATCHING_SELFTEST is not set -# CONFIG_FTR_FIXUP_SELFTEST is not set -# CONFIG_MSI_BITMAP_SELFTEST is not set -# CONFIG_XMON is not set # CONFIG_IRQSTACKS is not set -# CONFIG_BDI_SWITCH is not set # CONFIG_BOOTX_TEXT is not set # CONFIG_PPC_EARLY_DEBUG is not set @@ -1826,15 +1707,9 @@ CONFIG_PRINT_STACK_DEPTH=64 # Security options # # CONFIG_KEYS is not set -CONFIG_SECURITY=y +# CONFIG_SECURITY is not set # CONFIG_SECURITYFS is not set -CONFIG_SECURITY_NETWORK=y -# CONFIG_SECURITY_NETWORK_XFRM is not set -# CONFIG_SECURITY_PATH is not set # CONFIG_SECURITY_FILE_CAPABILITIES is not set -# CONFIG_SECURITY_ROOTPLUG is not set -CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR=0 -# CONFIG_SECURITY_TOMOYO is not set CONFIG_CRYPTO=y # @@ -1854,11 +1729,11 @@ CONFIG_CRYPTO_PCOMP=y CONFIG_CRYPTO_MANAGER=y CONFIG_CRYPTO_MANAGER2=y # CONFIG_CRYPTO_GF128MUL is not set -CONFIG_CRYPTO_NULL=m +# CONFIG_CRYPTO_NULL is not set CONFIG_CRYPTO_WORKQUEUE=y # CONFIG_CRYPTO_CRYPTD is not set CONFIG_CRYPTO_AUTHENC=m -CONFIG_CRYPTO_TEST=m +# CONFIG_CRYPTO_TEST is not set # # Authenticated Encryption with Associated Data @@ -1873,53 +1748,52 @@ CONFIG_CRYPTO_TEST=m CONFIG_CRYPTO_CBC=y # CONFIG_CRYPTO_CTR is not set # CONFIG_CRYPTO_CTS is not set -CONFIG_CRYPTO_ECB=m +# CONFIG_CRYPTO_ECB is not set # CONFIG_CRYPTO_LRW is not set -CONFIG_CRYPTO_PCBC=m +# CONFIG_CRYPTO_PCBC is not set # CONFIG_CRYPTO_XTS is not set # # Hash modes # -CONFIG_CRYPTO_HMAC=y +CONFIG_CRYPTO_HMAC=m # CONFIG_CRYPTO_XCBC is not set # # Digest # -CONFIG_CRYPTO_CRC32C=m -CONFIG_CRYPTO_MD4=m +CONFIG_CRYPTO_CRC32C=y +# CONFIG_CRYPTO_MD4 is not set CONFIG_CRYPTO_MD5=y -CONFIG_CRYPTO_MICHAEL_MIC=m +# CONFIG_CRYPTO_MICHAEL_MIC is not set # CONFIG_CRYPTO_RMD128 is not set # CONFIG_CRYPTO_RMD160 is not set # CONFIG_CRYPTO_RMD256 is not set # CONFIG_CRYPTO_RMD320 is not set CONFIG_CRYPTO_SHA1=m -CONFIG_CRYPTO_SHA256=m -CONFIG_CRYPTO_SHA512=m +# CONFIG_CRYPTO_SHA256 is not set +# CONFIG_CRYPTO_SHA512 is not set # CONFIG_CRYPTO_TGR192 is not set -CONFIG_CRYPTO_WP512=m +# CONFIG_CRYPTO_WP512 is not set # # Ciphers # -CONFIG_CRYPTO_AES=m -CONFIG_CRYPTO_ANUBIS=m -CONFIG_CRYPTO_ARC4=m -CONFIG_CRYPTO_BLOWFISH=m +# CONFIG_CRYPTO_AES is not set +# CONFIG_CRYPTO_ANUBIS is not set +# CONFIG_CRYPTO_ARC4 is not set +# CONFIG_CRYPTO_BLOWFISH is not set # CONFIG_CRYPTO_CAMELLIA is not set -CONFIG_CRYPTO_CAST5=m -CONFIG_CRYPTO_CAST6=m +# CONFIG_CRYPTO_CAST5 is not set +# CONFIG_CRYPTO_CAST6 is not set CONFIG_CRYPTO_DES=y # CONFIG_CRYPTO_FCRYPT is not set -CONFIG_CRYPTO_KHAZAD=m +# CONFIG_CRYPTO_KHAZAD is not set # CONFIG_CRYPTO_SALSA20 is not set # CONFIG_CRYPTO_SEED is not set -CONFIG_CRYPTO_SERPENT=m -CONFIG_CRYPTO_TEA=m -CONFIG_CRYPTO_TWOFISH=m -CONFIG_CRYPTO_TWOFISH_COMMON=m +# CONFIG_CRYPTO_SERPENT is not set +# CONFIG_CRYPTO_TEA is not set +# CONFIG_CRYPTO_TWOFISH is not set # # Compression -- cgit v1.2.3 From 083e268c8b78606658f2e4524168ff45825d879e Mon Sep 17 00:00:00 2001 From: Martyn Welch Date: Thu, 2 Jul 2009 15:18:44 +0100 Subject: powerpc/86xx: Update GE Fanuc sbc310 default configuration General update of defconfig including the following notable changes: - Enable Highmem support. - Support for PCMCIA based daughter card. Signed-off-by: Martyn Welch Signed-off-by: Kumar Gala --- arch/powerpc/configs/86xx/gef_sbc310_defconfig | 213 ++++++++++++++++++------- 1 file changed, 154 insertions(+), 59 deletions(-) diff --git a/arch/powerpc/configs/86xx/gef_sbc310_defconfig b/arch/powerpc/configs/86xx/gef_sbc310_defconfig index a66910e6334..f2362e5bf06 100644 --- a/arch/powerpc/configs/86xx/gef_sbc310_defconfig +++ b/arch/powerpc/configs/86xx/gef_sbc310_defconfig @@ -1,26 +1,28 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:29 2009 +# Linux kernel version: 2.6.30 +# Thu Jul 2 14:10:12 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_PHYS_64BIT is not set CONFIG_ALTIVEC=y CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y CONFIG_SMP=y CONFIG_NR_CPUS=2 CONFIG_PPC32=y @@ -32,6 +34,7 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y @@ -41,7 +44,6 @@ CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_GENERIC_LOCKBREAK=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_GPIO=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set @@ -56,11 +58,13 @@ CONFIG_PPC_UDBG_16550=y CONFIG_GENERIC_TBSYNC=y CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -91,7 +95,11 @@ CONFIG_CLASSIC_RCU=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y CONFIG_LOG_BUF_SHIFT=14 -# CONFIG_GROUP_SCHED is not set +CONFIG_GROUP_SCHED=y +CONFIG_FAIR_GROUP_SCHED=y +# CONFIG_RT_GROUP_SCHED is not set +CONFIG_USER_SCHED=y +# CONFIG_CGROUP_SCHED is not set # CONFIG_CGROUPS is not set CONFIG_SYSFS_DEPRECATED=y CONFIG_SYSFS_DEPRECATED_V2=y @@ -109,7 +117,6 @@ CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -122,8 +129,15 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y CONFIG_SLAB=y # CONFIG_SLUB is not set @@ -138,6 +152,10 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_USE_GENERIC_SMP_HELPERS=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -151,7 +169,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_STOP_MACHINE=y CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -168,7 +186,6 @@ CONFIG_DEFAULT_CFQ=y # CONFIG_DEFAULT_NOOP is not set CONFIG_DEFAULT_IOSCHED="cfq" # CONFIG_FREEZER is not set -CONFIG_PPC_MSI_BITMAP=y # # Platform support @@ -212,7 +229,7 @@ CONFIG_MPIC=y # # Kernel options # -# CONFIG_HIGHMEM is not set +CONFIG_HIGHMEM=y CONFIG_TICK_ONESHOT=y # CONFIG_NO_HZ is not set CONFIG_HIGH_RES_TIMERS=y @@ -231,6 +248,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set CONFIG_BINFMT_MISC=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -252,9 +270,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -281,13 +299,32 @@ CONFIG_PCI_DOMAINS=y CONFIG_PCI_SYSCALL=y CONFIG_PCIEPORTBUS=y CONFIG_PCIEAER=y +# CONFIG_PCIE_ECRC is not set +# CONFIG_PCIEAER_INJECT is not set # CONFIG_PCIEASPM is not set CONFIG_ARCH_SUPPORTS_MSI=y -CONFIG_PCI_MSI=y +# CONFIG_PCI_MSI is not set # CONFIG_PCI_LEGACY is not set # CONFIG_PCI_STUB is not set # CONFIG_PCI_IOV is not set -# CONFIG_PCCARD is not set +CONFIG_PCCARD=y +# CONFIG_PCMCIA_DEBUG is not set +CONFIG_PCMCIA=y +# CONFIG_PCMCIA_LOAD_CIS is not set +# CONFIG_PCMCIA_IOCTL is not set +# CONFIG_CARDBUS is not set + +# +# PC-card bridges +# +CONFIG_YENTA=y +# CONFIG_YENTA_O2 is not set +# CONFIG_YENTA_RICOH is not set +CONFIG_YENTA_TI=y +# CONFIG_YENTA_TOSHIBA is not set +# CONFIG_PD6729 is not set +# CONFIG_I82092 is not set +CONFIG_PCCARD_NONSTATIC=y # CONFIG_HOTPLUG_PCI is not set # CONFIG_HAS_RAPIDIO is not set @@ -393,6 +430,7 @@ CONFIG_IPV6_TUNNEL=m # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -421,7 +459,9 @@ CONFIG_FIB_RULES=y CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_STANDALONE=y CONFIG_PREVENT_FIRMWARE_BUILD=y -# CONFIG_FW_LOADER is not set +CONFIG_FW_LOADER=y +CONFIG_FIRMWARE_IN_KERNEL=y +CONFIG_EXTRA_FIRMWARE="" # CONFIG_SYS_HYPERVISOR is not set # CONFIG_CONNECTOR is not set CONFIG_MTD=y @@ -511,6 +551,7 @@ CONFIG_MTD_PHYSMAP_OF=y CONFIG_OF_DEVICE=y CONFIG_OF_GPIO=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -546,9 +587,60 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y -# CONFIG_IDE is not set +CONFIG_IDE=y + +# +# Please see Documentation/ide/ide.txt for help/info on IDE drives +# +# CONFIG_BLK_DEV_IDE_SATA is not set +CONFIG_IDE_GD=y +CONFIG_IDE_GD_ATA=y +# CONFIG_IDE_GD_ATAPI is not set +CONFIG_BLK_DEV_IDECS=y +# CONFIG_BLK_DEV_IDECD is not set +# CONFIG_BLK_DEV_IDETAPE is not set +# CONFIG_IDE_TASK_IOCTL is not set +CONFIG_IDE_PROC_FS=y + +# +# IDE chipset support/bugfixes +# +# CONFIG_BLK_DEV_PLATFORM is not set + +# +# PCI IDE chipsets support +# +# CONFIG_BLK_DEV_GENERIC is not set +# CONFIG_BLK_DEV_OPTI621 is not set +# CONFIG_BLK_DEV_AEC62XX is not set +# CONFIG_BLK_DEV_ALI15X3 is not set +# CONFIG_BLK_DEV_AMD74XX is not set +# CONFIG_BLK_DEV_CMD64X is not set +# CONFIG_BLK_DEV_TRIFLEX is not set +# CONFIG_BLK_DEV_CS5520 is not set +# CONFIG_BLK_DEV_CS5530 is not set +# CONFIG_BLK_DEV_HPT366 is not set +# CONFIG_BLK_DEV_JMICRON is not set +# CONFIG_BLK_DEV_SC1200 is not set +# CONFIG_BLK_DEV_PIIX is not set +# CONFIG_BLK_DEV_IT8172 is not set +# CONFIG_BLK_DEV_IT8213 is not set +# CONFIG_BLK_DEV_IT821X is not set +# CONFIG_BLK_DEV_NS87415 is not set +# CONFIG_BLK_DEV_PDC202XX_OLD is not set +# CONFIG_BLK_DEV_PDC202XX_NEW is not set +# CONFIG_BLK_DEV_SVWKS is not set +# CONFIG_BLK_DEV_SIIMAGE is not set +# CONFIG_BLK_DEV_SL82C105 is not set +# CONFIG_BLK_DEV_SLC90E66 is not set +# CONFIG_BLK_DEV_TRM290 is not set +# CONFIG_BLK_DEV_VIA82CXXX is not set +# CONFIG_BLK_DEV_TC86C001 is not set +# CONFIG_BLK_DEV_IDEDMA is not set # # SCSI device support @@ -570,10 +662,6 @@ CONFIG_BLK_DEV_SR=y # CONFIG_BLK_DEV_SR_VENDOR is not set # CONFIG_CHR_DEV_SG is not set # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -590,6 +678,7 @@ CONFIG_SCSI_WAIT_SCAN=m # CONFIG_SCSI_SRP_ATTRS is not set CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -598,6 +687,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -617,7 +707,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set @@ -630,6 +719,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_NSP32 is not set # CONFIG_SCSI_DEBUG is not set # CONFIG_SCSI_SRP is not set +# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set # CONFIG_SCSI_DH is not set # CONFIG_SCSI_OSD_INITIATOR is not set CONFIG_ATA=y @@ -647,14 +737,17 @@ CONFIG_SATA_SIL24=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y CONFIG_DUMMY=m CONFIG_BONDING=m # CONFIG_MACVLAN is not set @@ -701,6 +794,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -720,8 +814,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -748,6 +844,7 @@ CONFIG_GIANFAR=y # CONFIG_USB_PEGASUS is not set # CONFIG_USB_RTL8150 is not set # CONFIG_USB_USBNET is not set +# CONFIG_NET_PCMCIA is not set # CONFIG_WAN is not set # CONFIG_FDDI is not set # CONFIG_HIPPI is not set @@ -827,6 +924,7 @@ CONFIG_DEVKMEM=y CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y # CONFIG_SERIAL_8250_PCI is not set +# CONFIG_SERIAL_8250_CS is not set CONFIG_SERIAL_8250_NR_UARTS=2 CONFIG_SERIAL_8250_RUNTIME_UARTS=2 # CONFIG_SERIAL_8250_EXTENDED is not set @@ -849,6 +947,14 @@ CONFIG_HW_RANDOM=y CONFIG_NVRAM=y # CONFIG_R3964 is not set # CONFIG_APPLICOM is not set + +# +# PCMCIA character devices +# +# CONFIG_SYNCLINK_CS is not set +# CONFIG_CARDMAN_4000 is not set +# CONFIG_CARDMAN_4040 is not set +# CONFIG_IPWIRELESS is not set # CONFIG_RAW_DRIVER is not set # CONFIG_TCG_TPM is not set CONFIG_DEVPORT=y @@ -912,13 +1018,17 @@ CONFIG_DS1682=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_ARCH_REQUIRE_GPIOLIB=y CONFIG_GPIOLIB=y @@ -997,6 +1107,7 @@ CONFIG_SENSORS_LM92=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -1052,24 +1163,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y -# CONFIG_USB_DABUSB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1114,7 +1210,7 @@ CONFIG_HID_BELKIN=y CONFIG_HID_CHERRY=y CONFIG_HID_CHICONY=y CONFIG_HID_CYPRESS=y -# CONFIG_DRAGONRISE_FF is not set +# CONFIG_HID_DRAGONRISE is not set CONFIG_HID_EZKEY=y # CONFIG_HID_KYE is not set CONFIG_HID_GYRATION=y @@ -1131,10 +1227,11 @@ CONFIG_HID_PETALYNX=y CONFIG_HID_SAMSUNG=y CONFIG_HID_SONY=y CONFIG_HID_SUNPLUS=y -# CONFIG_GREENASIA_FF is not set +# CONFIG_HID_GREENASIA is not set +# CONFIG_HID_SMARTJOYPLUS is not set # CONFIG_HID_TOPSEED is not set -# CONFIG_THRUSTMASTER_FF is not set -# CONFIG_ZEROPLUS_FF is not set +# CONFIG_HID_THRUSTMASTER is not set +# CONFIG_HID_ZEROPLUS is not set CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y @@ -1160,6 +1257,7 @@ CONFIG_USB=y # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set CONFIG_USB_EHCI_HCD=y # CONFIG_USB_EHCI_ROOT_HUB_TT is not set # CONFIG_USB_EHCI_TT_NEWSCHED is not set @@ -1288,6 +1386,7 @@ CONFIG_RTC_INTF_DEV=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set CONFIG_RTC_DRV_RX8581=y +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1315,6 +1414,10 @@ CONFIG_RTC_DRV_RX8581=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1336,10 +1439,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set CONFIG_FS_POSIX_ACL=y -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1419,6 +1524,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set CONFIG_LOCKD=y @@ -1508,6 +1614,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1531,23 +1638,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_PREEMPT_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_BOOTX_TEXT is not set -- cgit v1.2.3 From 34466c5be4dd1490acf98e6d2ff8f3728d8ca5c1 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Wed, 29 Jul 2009 23:34:01 -0500 Subject: powerpc: Update defconfigs for embedded 6xx/7xxx, 8xx, 8{3,5,6}xxx Signed-off-by: Kumar Gala --- arch/powerpc/configs/83xx/asp8347_defconfig | 106 +++++++----- arch/powerpc/configs/83xx/kmeter1_defconfig | 176 +++++++++++++------- arch/powerpc/configs/83xx/mpc8313_rdb_defconfig | 168 +++++++++++++------ arch/powerpc/configs/83xx/mpc8315_rdb_defconfig | 168 +++++++++++++------ arch/powerpc/configs/83xx/mpc832x_mds_defconfig | 111 +++++++------ arch/powerpc/configs/83xx/mpc832x_rdb_defconfig | 120 ++++++++------ arch/powerpc/configs/83xx/mpc834x_itx_defconfig | 114 +++++++------ arch/powerpc/configs/83xx/mpc834x_itxgp_defconfig | 114 +++++++------ arch/powerpc/configs/83xx/mpc834x_mds_defconfig | 104 +++++++----- arch/powerpc/configs/83xx/mpc836x_mds_defconfig | 111 +++++++------ arch/powerpc/configs/83xx/mpc836x_rdk_defconfig | 104 +++++++----- arch/powerpc/configs/83xx/mpc837x_mds_defconfig | 110 ++++++------ arch/powerpc/configs/83xx/mpc837x_rdb_defconfig | 162 ++++++++++++------ arch/powerpc/configs/83xx/sbc834x_defconfig | 103 +++++++----- arch/powerpc/configs/85xx/ksi8560_defconfig | 93 +++++++---- arch/powerpc/configs/85xx/mpc8540_ads_defconfig | 91 ++++++---- arch/powerpc/configs/85xx/mpc8560_ads_defconfig | 99 +++++++---- arch/powerpc/configs/85xx/mpc85xx_cds_defconfig | 99 +++++++---- arch/powerpc/configs/85xx/sbc8548_defconfig | 96 ++++++----- arch/powerpc/configs/85xx/sbc8560_defconfig | 91 ++++++---- arch/powerpc/configs/85xx/socrates_defconfig | 165 ++++++++++++------ arch/powerpc/configs/85xx/stx_gp3_defconfig | 119 ++++++++----- arch/powerpc/configs/85xx/tqm8540_defconfig | 100 ++++++----- arch/powerpc/configs/85xx/tqm8541_defconfig | 101 ++++++----- arch/powerpc/configs/85xx/tqm8548_defconfig | 100 +++++++---- arch/powerpc/configs/85xx/tqm8555_defconfig | 101 ++++++----- arch/powerpc/configs/85xx/tqm8560_defconfig | 101 ++++++----- arch/powerpc/configs/85xx/xes_mpc85xx_defconfig | 118 +++++++------ arch/powerpc/configs/86xx/gef_ppc9a_defconfig | 7 +- arch/powerpc/configs/86xx/gef_sbc310_defconfig | 7 +- arch/powerpc/configs/86xx/gef_sbc610_defconfig | 130 +++++++++------ arch/powerpc/configs/86xx/mpc8610_hpcd_defconfig | 118 ++++++++----- arch/powerpc/configs/86xx/mpc8641_hpcn_defconfig | 186 ++++++++++----------- arch/powerpc/configs/86xx/sbc8641d_defconfig | 112 ++++++++----- arch/powerpc/configs/adder875_defconfig | 97 +++++++---- arch/powerpc/configs/c2k_defconfig | 121 ++++++++------ arch/powerpc/configs/ep8248e_defconfig | 97 +++++++---- arch/powerpc/configs/ep88xc_defconfig | 91 ++++++---- arch/powerpc/configs/linkstation_defconfig | 116 ++++++++----- arch/powerpc/configs/mgcoge_defconfig | 97 +++++++---- arch/powerpc/configs/mgsuvd_defconfig | 89 +++++----- arch/powerpc/configs/mpc7448_hpc2_defconfig | 103 ++++++------ arch/powerpc/configs/mpc8272_ads_defconfig | 104 +++++++----- arch/powerpc/configs/mpc83xx_defconfig | 162 ++++++++++++------ arch/powerpc/configs/mpc85xx_defconfig | 193 ++++++++++------------ arch/powerpc/configs/mpc85xx_smp_defconfig | 193 ++++++++++------------ arch/powerpc/configs/mpc866_ads_defconfig | 92 ++++++----- arch/powerpc/configs/mpc86xx_defconfig | 186 ++++++++++----------- arch/powerpc/configs/mpc885_ads_defconfig | 91 ++++++---- arch/powerpc/configs/pq2fads_defconfig | 110 +++++++----- arch/powerpc/configs/prpmc2800_defconfig | 158 ++++++++++++------ arch/powerpc/configs/storcenter_defconfig | 108 ++++++------ 52 files changed, 3639 insertions(+), 2374 deletions(-) diff --git a/arch/powerpc/configs/83xx/asp8347_defconfig b/arch/powerpc/configs/83xx/asp8347_defconfig index 27893971377..a2df0635b6d 100644 --- a/arch/powerpc/configs/83xx/asp8347_defconfig +++ b/arch/powerpc/configs/83xx/asp8347_defconfig @@ -1,26 +1,28 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:05 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:02 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y CONFIG_FSL_EMB_PERFMON=y # CONFIG_ALTIVEC is not set CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -31,15 +33,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -53,6 +56,7 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y # CONFIG_DEFAULT_UIMAGE is not set CONFIG_REDBOOT=y CONFIG_ARCH_SUSPEND_POSSIBLE=y @@ -60,6 +64,7 @@ CONFIG_ARCH_SUSPEND_POSSIBLE=y # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -108,7 +113,6 @@ CONFIG_ANON_INODES=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y # CONFIG_KALLSYMS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -121,9 +125,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -136,6 +147,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -148,7 +163,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -190,6 +205,7 @@ CONFIG_PPC_83xx=y # CONFIG_MPC837x_RDB is not set # CONFIG_SBC834x is not set CONFIG_ASP834x=y +# CONFIG_KMETER1 is not set CONFIG_PPC_MPC834x=y # CONFIG_PPC_86xx is not set # CONFIG_EMBEDDED6xx is not set @@ -235,6 +251,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set # CONFIG_BINFMT_MISC is not set # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -255,9 +272,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -366,6 +383,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -383,7 +401,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -490,6 +512,7 @@ CONFIG_MTD_PHYSMAP_OF=y # CONFIG_MTD_UBI is not set CONFIG_OF_DEVICE=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -525,7 +548,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -545,14 +570,17 @@ CONFIG_HAVE_IDE=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -599,6 +627,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -618,8 +647,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -786,13 +817,17 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -847,6 +882,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -900,24 +936,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y -# CONFIG_USB_DABUSB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -960,6 +981,7 @@ CONFIG_USB_MON=y # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_ROOT_HUB_TT=y # CONFIG_USB_EHCI_TT_NEWSCHED is not set @@ -1069,6 +1091,7 @@ CONFIG_RTC_DRV_DS1374=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # CONFIG_RTC_DRV_RX8581 is not set +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1096,6 +1119,10 @@ CONFIG_RTC_DRV_DS1374=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1115,10 +1142,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1192,6 +1221,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set CONFIG_LOCKD=y @@ -1287,6 +1317,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1312,22 +1343,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_BOOTX_TEXT is not set diff --git a/arch/powerpc/configs/83xx/kmeter1_defconfig b/arch/powerpc/configs/83xx/kmeter1_defconfig index bf0853f29f3..93ebd443a18 100644 --- a/arch/powerpc/configs/83xx/kmeter1_defconfig +++ b/arch/powerpc/configs/83xx/kmeter1_defconfig @@ -1,25 +1,28 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.28 -# Fri Apr 3 10:34:33 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:03 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set +CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_FSL_EMB_PERFMON is not set # CONFIG_ALTIVEC is not set CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -30,21 +33,22 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y CONFIG_EARLY_PRINTK=y CONFIG_GENERIC_NVRAM=y -CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y +CONFIG_SCHED_OMIT_FRAME_POINTER=y CONFIG_ARCH_MAY_HAVE_PC_FDC=y CONFIG_PPC_OF=y CONFIG_OF=y @@ -52,11 +56,14 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y CONFIG_ARCH_SUSPEND_POSSIBLE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set +CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -71,19 +78,30 @@ CONFIG_LOCALVERSION_AUTO=y CONFIG_SYSVIPC=y CONFIG_SYSVIPC_SYSCTL=y CONFIG_POSIX_MQUEUE=y +CONFIG_POSIX_MQUEUE_SYSCTL=y # CONFIG_BSD_PROCESS_ACCT is not set # CONFIG_TASKSTATS is not set # CONFIG_AUDIT is not set + +# +# RCU Subsystem +# +CONFIG_CLASSIC_RCU=y +# CONFIG_TREE_RCU is not set +# CONFIG_PREEMPT_RCU is not set +# CONFIG_TREE_RCU_TRACE is not set +# CONFIG_PREEMPT_RCU_TRACE is not set # CONFIG_IKCONFIG is not set CONFIG_LOG_BUF_SHIFT=14 -# CONFIG_CGROUPS is not set # CONFIG_GROUP_SCHED is not set +# CONFIG_CGROUPS is not set # CONFIG_SYSFS_DEPRECATED_V2 is not set # CONFIG_RELAY is not set # CONFIG_NAMESPACES is not set # CONFIG_BLK_DEV_INITRD is not set CONFIG_CC_OPTIMIZE_FOR_SIZE=y CONFIG_SYSCTL=y +CONFIG_ANON_INODES=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y @@ -93,17 +111,23 @@ CONFIG_KALLSYMS_ALL=y CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y -CONFIG_COMPAT_BRK=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y -CONFIG_ANON_INODES=y CONFIG_EPOLL=y CONFIG_SIGNALFD=y CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y +# CONFIG_STRIP_ASM_SYMS is not set +CONFIG_COMPAT_BRK=y CONFIG_SLAB=y # CONFIG_SLUB is not set # CONFIG_SLOB is not set @@ -116,10 +140,15 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# +# CONFIG_GCOV_KERNEL is not set +# CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y CONFIG_RT_MUTEXES=y -# CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=0 CONFIG_MODULES=y # CONFIG_MODULE_FORCE_LOAD is not set @@ -127,11 +156,8 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODULE_FORCE_UNLOAD is not set # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set -CONFIG_KMOD=y CONFIG_BLOCK=y -# CONFIG_LBD is not set -# CONFIG_BLK_DEV_IO_TRACE is not set -# CONFIG_LSF is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -147,14 +173,11 @@ CONFIG_IOSCHED_NOOP=y # CONFIG_DEFAULT_CFQ is not set CONFIG_DEFAULT_NOOP=y CONFIG_DEFAULT_IOSCHED="noop" -CONFIG_CLASSIC_RCU=y # CONFIG_FREEZER is not set # # Platform support # -CONFIG_PPC_MULTIPLATFORM=y -CONFIG_CLASSIC32=y # CONFIG_PPC_CHRP is not set # CONFIG_MPC5121_ADS is not set # CONFIG_MPC5121_GENERIC is not set @@ -179,6 +202,8 @@ CONFIG_PPC_83xx=y CONFIG_KMETER1=y # CONFIG_PPC_86xx is not set # CONFIG_EMBEDDED6xx is not set +# CONFIG_AMIGAONE is not set +CONFIG_PPC_OF_BOOT_TRAMPOLINE=y CONFIG_IPIC=y # CONFIG_MPIC is not set # CONFIG_MPIC_WEIRD is not set @@ -194,6 +219,8 @@ CONFIG_IPIC=y CONFIG_QUICC_ENGINE=y # CONFIG_QE_GPIO is not set # CONFIG_FSL_ULI1575 is not set +# CONFIG_SIMPLE_GPIO is not set +# CONFIG_MCU_MPC8349EMITX is not set # # Kernel options @@ -212,16 +239,17 @@ CONFIG_SCHED_HRTICK=y # CONFIG_PREEMPT_NONE is not set # CONFIG_PREEMPT_VOLUNTARY is not set CONFIG_PREEMPT=y -# CONFIG_PREEMPT_RCU is not set CONFIG_BINFMT_ELF=y # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set # CONFIG_HAVE_AOUT is not set # CONFIG_BINFMT_MISC is not set # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y # CONFIG_KEXEC is not set +# CONFIG_CRASH_DUMP is not set CONFIG_ARCH_FLATMEM_ENABLE=y CONFIG_ARCH_POPULATES_NODE_MAP=y CONFIG_SELECT_MEMORY_MODEL=y @@ -233,12 +261,17 @@ CONFIG_FLAT_NODE_MEM_MAP=y CONFIG_PAGEFLAGS_EXTENDED=y CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_MIGRATION=y -# CONFIG_RESOURCES_64BIT is not set # CONFIG_PHYS_ADDR_T_64BIT is not set CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y +CONFIG_HAVE_MLOCK=y +CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 +CONFIG_PPC_4K_PAGES=y +# CONFIG_PPC_16K_PAGES is not set +# CONFIG_PPC_64K_PAGES is not set +# CONFIG_PPC_256K_PAGES is not set CONFIG_FORCE_MAX_ZONEORDER=11 CONFIG_PROC_DEVICETREE=y # CONFIG_CMDLINE_BOOL is not set @@ -331,7 +364,10 @@ CONFIG_LLC=m # CONFIG_LAPB is not set # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set +# CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set +# CONFIG_DCB is not set # # Network testing @@ -342,8 +378,8 @@ CONFIG_LLC=m # CONFIG_IRDA is not set # CONFIG_BT is not set # CONFIG_AF_RXRPC is not set -# CONFIG_PHONET is not set # CONFIG_WIRELESS is not set +# CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -362,6 +398,7 @@ CONFIG_MTD=y # CONFIG_MTD_DEBUG is not set CONFIG_MTD_CONCAT=y CONFIG_MTD_PARTITIONS=y +# CONFIG_MTD_TESTS is not set # CONFIG_MTD_REDBOOT_PARTS is not set CONFIG_MTD_CMDLINE_PARTS=y CONFIG_MTD_OF_PARTS=y @@ -430,6 +467,11 @@ CONFIG_MTD_PHRAM=y # CONFIG_MTD_NAND is not set # CONFIG_MTD_ONENAND is not set +# +# LPDDR flash memory drivers +# +# CONFIG_MTD_LPDDR is not set + # # UBI - Unsorted block images # @@ -445,7 +487,6 @@ CONFIG_MTD_UBI_DEBUG=y # CONFIG_MTD_UBI_DEBUG_MSG is not set # CONFIG_MTD_UBI_DEBUG_PARANOID is not set # CONFIG_MTD_UBI_DEBUG_DISABLE_BGT is not set -# CONFIG_MTD_UBI_DEBUG_USERSPACE_IO is not set # CONFIG_MTD_UBI_DEBUG_EMULATE_BITFLIPS is not set # CONFIG_MTD_UBI_DEBUG_EMULATE_WRITE_FAILURES is not set # CONFIG_MTD_UBI_DEBUG_EMULATE_ERASE_FAILURES is not set @@ -459,6 +500,7 @@ CONFIG_MTD_UBI_DEBUG=y # CONFIG_MTD_UBI_DEBUG_MSG_IO is not set CONFIG_OF_DEVICE=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -505,10 +547,15 @@ CONFIG_MARVELL_PHY=y # CONFIG_BROADCOM_PHY is not set # CONFIG_ICPLUS_PHY is not set # CONFIG_REALTEK_PHY is not set +# CONFIG_NATIONAL_PHY is not set +# CONFIG_STE10XP is not set +# CONFIG_LSI_ET1011C_PHY is not set # CONFIG_FIXED_PHY is not set # CONFIG_MDIO_BITBANG is not set CONFIG_NET_ETHERNET=y CONFIG_MII=y +# CONFIG_ETHOC is not set +# CONFIG_DNET is not set # CONFIG_IBM_NEW_EMAC_ZMII is not set # CONFIG_IBM_NEW_EMAC_RGMII is not set # CONFIG_IBM_NEW_EMAC_TAH is not set @@ -517,11 +564,12 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set CONFIG_NETDEV_1000=y +CONFIG_FSL_PQ_MDIO=y # CONFIG_GIANFAR is not set CONFIG_UCC_GETH=y # CONFIG_UGETH_MAGIC_PACKET is not set -# CONFIG_UGETH_FILTERING is not set # CONFIG_UGETH_TX_ON_DEMAND is not set # CONFIG_MV643XX_ETH is not set # CONFIG_NETDEV_10000 is not set @@ -531,7 +579,10 @@ CONFIG_UCC_GETH=y # # CONFIG_WLAN_PRE80211 is not set # CONFIG_WLAN_80211 is not set -# CONFIG_IWLWIFI_LEDS is not set + +# +# Enable WiMAX (Networking options) to see the WiMAX drivers +# CONFIG_WAN=y CONFIG_HDLC=y # CONFIG_HDLC_RAW is not set @@ -543,8 +594,6 @@ CONFIG_HDLC=y # # X.25/LAPB support is disabled # -CONFIG_HDLC_KM=y -CONFIG_FS_UCC_HDLC=y # CONFIG_DLCI is not set CONFIG_PPP=y CONFIG_PPP_MULTILINK=y @@ -600,16 +649,18 @@ CONFIG_SERIAL_CORE_CONSOLE=y # CONFIG_SERIAL_OF_PLATFORM is not set # CONFIG_SERIAL_QE is not set CONFIG_UNIX98_PTYS=y +# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 +# CONFIG_HVC_UDBG is not set # CONFIG_IPMI_HANDLER is not set CONFIG_HW_RANDOM=y +# CONFIG_HW_RANDOM_TIMERIOMEM is not set # CONFIG_NVRAM is not set # CONFIG_GEN_RTC is not set # CONFIG_R3964 is not set # CONFIG_RAW_DRIVER is not set # CONFIG_TCG_TPM is not set -CONFIG_BOOTCOUNT=y CONFIG_I2C=y CONFIG_I2C_BOARDINFO=y CONFIG_I2C_CHARDEV=y @@ -642,20 +693,20 @@ CONFIG_I2C_MPC=y # Miscellaneous I2C Chip support # # CONFIG_DS1682 is not set -# CONFIG_AT24 is not set -# CONFIG_SENSORS_EEPROM is not set # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_PCF8591 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set -# CONFIG_MCU_MPC8349EMITX is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -677,27 +728,15 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_CORE is not set # CONFIG_MFD_SM501 is not set # CONFIG_HTC_PASIC3 is not set +# CONFIG_TWL4030_CORE is not set # CONFIG_MFD_TMIO is not set # CONFIG_PMIC_DA903X is not set # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set +# CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -# CONFIG_DAB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -720,11 +759,16 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_EDAC is not set # CONFIG_RTC_CLASS is not set # CONFIG_DMADEVICES is not set +# CONFIG_AUXDISPLAY is not set CONFIG_UIO=y # CONFIG_UIO_PDRV is not set # CONFIG_UIO_PDRV_GENIRQ is not set # CONFIG_UIO_SMX is not set # CONFIG_UIO_SERCOS3 is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -736,9 +780,12 @@ CONFIG_UIO=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set +# CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y # CONFIG_DNOTIFY is not set CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -747,6 +794,11 @@ CONFIG_INOTIFY_USER=y # CONFIG_AUTOFS4_FS is not set # CONFIG_FUSE_FS is not set +# +# Caches +# +# CONFIG_FSCACHE is not set + # # CD-ROM/DVD Filesystems # @@ -772,10 +824,7 @@ CONFIG_TMPFS=y # CONFIG_TMPFS_POSIX_ACL is not set # CONFIG_HUGETLB_PAGE is not set # CONFIG_CONFIGFS_FS is not set - -# -# Miscellaneous filesystems -# +CONFIG_MISC_FILESYSTEMS=y # CONFIG_ADFS_FS is not set # CONFIG_AFFS_FS is not set # CONFIG_HFS_FS is not set @@ -796,6 +845,7 @@ CONFIG_JFFS2_RTIME=y # CONFIG_JFFS2_RUBIN is not set # CONFIG_UBIFS_FS is not set # CONFIG_CRAMFS is not set +# CONFIG_SQUASHFS is not set # CONFIG_VXFS_FS is not set # CONFIG_MINIX_FS is not set # CONFIG_OMFS_FS is not set @@ -804,6 +854,7 @@ CONFIG_JFFS2_RTIME=y # CONFIG_ROMFS_FS is not set # CONFIG_SYSV_FS is not set # CONFIG_UFS_FS is not set +# CONFIG_NILFS2_FS is not set CONFIG_NETWORK_FILESYSTEMS=y CONFIG_NFS_FS=y CONFIG_NFS_V3=y @@ -815,7 +866,6 @@ CONFIG_LOCKD=y CONFIG_LOCKD_V4=y CONFIG_NFS_COMMON=y CONFIG_SUNRPC=y -# CONFIG_SUNRPC_REGISTER_V4 is not set # CONFIG_RPCSEC_GSS_KRB5 is not set # CONFIG_RPCSEC_GSS_SPKM3 is not set # CONFIG_SMB_FS is not set @@ -845,11 +895,13 @@ CONFIG_PARTITION_ADVANCED=y # CONFIG_DLM is not set CONFIG_UCC_FAST=y CONFIG_UCC=y +# CONFIG_BINARY_PRINTF is not set # # Library routines # CONFIG_BITREVERSE=y +CONFIG_GENERIC_FIND_LAST_BIT=y # CONFIG_CRC_CCITT is not set # CONFIG_CRC16 is not set # CONFIG_CRC_T10DIF is not set @@ -859,11 +911,12 @@ CONFIG_CRC32=y # CONFIG_LIBCRC32C is not set CONFIG_ZLIB_INFLATE=y CONFIG_ZLIB_DEFLATE=y -CONFIG_PLIST=y CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y +CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -883,13 +936,18 @@ CONFIG_DEBUG_FS=y # CONFIG_LATENCYTOP is not set CONFIG_SYSCTL_SYSCALL_CHECK=y CONFIG_HAVE_FUNCTION_TRACER=y - -# -# Tracers -# -# CONFIG_DYNAMIC_PRINTK_DEBUG is not set +CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y +CONFIG_HAVE_DYNAMIC_FTRACE=y +CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y +CONFIG_TRACING_SUPPORT=y +# CONFIG_FTRACE is not set +# CONFIG_DYNAMIC_DEBUG is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y +CONFIG_PRINT_STACK_DEPTH=64 +# CONFIG_PPC_EMULATED_STATS is not set # CONFIG_IRQSTACKS is not set # CONFIG_VIRQ_DEBUG is not set # CONFIG_BOOTX_TEXT is not set diff --git a/arch/powerpc/configs/83xx/mpc8313_rdb_defconfig b/arch/powerpc/configs/83xx/mpc8313_rdb_defconfig index c5c0fe71a43..ff33a7db2ea 100644 --- a/arch/powerpc/configs/83xx/mpc8313_rdb_defconfig +++ b/arch/powerpc/configs/83xx/mpc8313_rdb_defconfig @@ -1,26 +1,28 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:06 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:04 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_FSL_EMB_PERFMON is not set # CONFIG_ALTIVEC is not set CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -31,15 +33,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -53,12 +56,14 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y CONFIG_ARCH_SUSPEND_POSSIBLE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -107,7 +112,6 @@ CONFIG_ANON_INODES=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y # CONFIG_KALLSYMS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -120,9 +124,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -135,6 +146,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -147,7 +162,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -189,6 +204,7 @@ CONFIG_MPC831x_RDB=y # CONFIG_MPC837x_RDB is not set # CONFIG_SBC834x is not set # CONFIG_ASP834x is not set +# CONFIG_KMETER1 is not set CONFIG_PPC_MPC831x=y # CONFIG_PPC_86xx is not set # CONFIG_EMBEDDED6xx is not set @@ -234,6 +250,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set # CONFIG_BINFMT_MISC is not set # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -254,9 +271,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -366,6 +383,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -383,7 +401,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -503,6 +525,7 @@ CONFIG_MTD_NAND_FSL_ELBC=y CONFIG_OF_DEVICE=y CONFIG_OF_I2C=y CONFIG_OF_SPI=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -539,7 +562,9 @@ CONFIG_MISC_DEVICES=y # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_AT25 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -562,10 +587,6 @@ CONFIG_SCSI_PROC_FS=y # CONFIG_BLK_DEV_SR is not set CONFIG_CHR_DEV_SG=y # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -583,6 +604,7 @@ CONFIG_SCSI_SPI_ATTRS=y CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set # CONFIG_SCSI_CXGB3_ISCSI is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -591,6 +613,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -610,7 +633,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_QLOGIC_1280 is not set @@ -643,14 +665,17 @@ CONFIG_MD_RAID1=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -714,6 +739,8 @@ CONFIG_E100=y # CONFIG_SMSC9420 is not set # CONFIG_SUNDANCE is not set # CONFIG_TLAN is not set +# CONFIG_KS8842 is not set +# CONFIG_KS8851 is not set # CONFIG_VIA_RHINE is not set # CONFIG_SC92031 is not set # CONFIG_ATL2 is not set @@ -735,8 +762,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -924,7 +953,6 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set @@ -938,13 +966,18 @@ CONFIG_SPI_MASTER=y # SPI Master Controller Drivers # CONFIG_SPI_BITBANG=y -CONFIG_SPI_MPC83xx=y +# CONFIG_SPI_MPC8xxx is not set # # SPI Protocol Masters # # CONFIG_SPI_SPIDEV is not set # CONFIG_SPI_TLE62X0 is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -1002,6 +1035,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -1056,24 +1090,10 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set +# CONFIG_EZX_PCAP is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y -# CONFIG_USB_DABUSB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1135,6 +1155,7 @@ CONFIG_USB_MON=y # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_ROOT_HUB_TT=y # CONFIG_USB_EHCI_TT_NEWSCHED is not set @@ -1144,9 +1165,9 @@ CONFIG_USB_EHCI_HCD_PPC_OF=y # CONFIG_USB_ISP116X_HCD is not set # CONFIG_USB_ISP1760_HCD is not set CONFIG_USB_OHCI_HCD=y -CONFIG_USB_OHCI_HCD_PPC_OF=y CONFIG_USB_OHCI_HCD_PPC_OF_BE=y # CONFIG_USB_OHCI_HCD_PPC_OF_LE is not set +CONFIG_USB_OHCI_HCD_PPC_OF=y CONFIG_USB_OHCI_HCD_PCI=y CONFIG_USB_OHCI_BIG_ENDIAN_DESC=y CONFIG_USB_OHCI_BIG_ENDIAN_MMIO=y @@ -1235,8 +1256,9 @@ CONFIG_USB_GADGET_SELECTED=y # CONFIG_USB_GADGET_OMAP is not set # CONFIG_USB_GADGET_PXA25X is not set # CONFIG_USB_GADGET_PXA27X is not set -# CONFIG_USB_GADGET_S3C2410 is not set +# CONFIG_USB_GADGET_S3C_HSOTG is not set # CONFIG_USB_GADGET_IMX is not set +# CONFIG_USB_GADGET_S3C2410 is not set # CONFIG_USB_GADGET_M66592 is not set # CONFIG_USB_GADGET_AMD5536UDC is not set # CONFIG_USB_GADGET_FSL_QE is not set @@ -1244,9 +1266,11 @@ CONFIG_USB_GADGET_SELECTED=y CONFIG_USB_GADGET_NET2280=y CONFIG_USB_NET2280=y # CONFIG_USB_GADGET_GOKU is not set +# CONFIG_USB_GADGET_LANGWELL is not set # CONFIG_USB_GADGET_DUMMY_HCD is not set CONFIG_USB_GADGET_DUALSPEED=y # CONFIG_USB_ZERO is not set +# CONFIG_USB_AUDIO is not set CONFIG_USB_ETH=y CONFIG_USB_ETH_RNDIS=y # CONFIG_USB_GADGETFS is not set @@ -1298,6 +1322,7 @@ CONFIG_RTC_DRV_DS1307=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # CONFIG_RTC_DRV_RX8581 is not set +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1332,6 +1357,10 @@ CONFIG_RTC_DRV_DS1307=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1351,10 +1380,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1428,6 +1459,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set CONFIG_LOCKD=y @@ -1464,7 +1496,46 @@ CONFIG_MSDOS_PARTITION=y # CONFIG_KARMA_PARTITION is not set # CONFIG_EFI_PARTITION is not set # CONFIG_SYSV68_PARTITION is not set -# CONFIG_NLS is not set +CONFIG_NLS=y +CONFIG_NLS_DEFAULT="iso8859-1" +# CONFIG_NLS_CODEPAGE_437 is not set +# CONFIG_NLS_CODEPAGE_737 is not set +# CONFIG_NLS_CODEPAGE_775 is not set +# CONFIG_NLS_CODEPAGE_850 is not set +# CONFIG_NLS_CODEPAGE_852 is not set +# CONFIG_NLS_CODEPAGE_855 is not set +# CONFIG_NLS_CODEPAGE_857 is not set +# CONFIG_NLS_CODEPAGE_860 is not set +# CONFIG_NLS_CODEPAGE_861 is not set +# CONFIG_NLS_CODEPAGE_862 is not set +# CONFIG_NLS_CODEPAGE_863 is not set +# CONFIG_NLS_CODEPAGE_864 is not set +# CONFIG_NLS_CODEPAGE_865 is not set +# CONFIG_NLS_CODEPAGE_866 is not set +# CONFIG_NLS_CODEPAGE_869 is not set +# CONFIG_NLS_CODEPAGE_936 is not set +# CONFIG_NLS_CODEPAGE_950 is not set +# CONFIG_NLS_CODEPAGE_932 is not set +# CONFIG_NLS_CODEPAGE_949 is not set +# CONFIG_NLS_CODEPAGE_874 is not set +# CONFIG_NLS_ISO8859_8 is not set +# CONFIG_NLS_CODEPAGE_1250 is not set +# CONFIG_NLS_CODEPAGE_1251 is not set +# CONFIG_NLS_ASCII is not set +# CONFIG_NLS_ISO8859_1 is not set +# CONFIG_NLS_ISO8859_2 is not set +# CONFIG_NLS_ISO8859_3 is not set +# CONFIG_NLS_ISO8859_4 is not set +# CONFIG_NLS_ISO8859_5 is not set +# CONFIG_NLS_ISO8859_6 is not set +# CONFIG_NLS_ISO8859_7 is not set +# CONFIG_NLS_ISO8859_9 is not set +# CONFIG_NLS_ISO8859_13 is not set +# CONFIG_NLS_ISO8859_14 is not set +# CONFIG_NLS_ISO8859_15 is not set +# CONFIG_NLS_KOI8_R is not set +# CONFIG_NLS_KOI8_U is not set +# CONFIG_NLS_UTF8 is not set # CONFIG_DLM is not set # CONFIG_BINARY_PRINTF is not set @@ -1488,6 +1559,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1518,6 +1590,9 @@ CONFIG_SCHED_DEBUG=y # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -1529,7 +1604,6 @@ CONFIG_SCHED_DEBUG=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -1543,16 +1617,15 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set @@ -1560,6 +1633,9 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_KMEMCHECK is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set diff --git a/arch/powerpc/configs/83xx/mpc8315_rdb_defconfig b/arch/powerpc/configs/83xx/mpc8315_rdb_defconfig index af4952feba3..76237d46670 100644 --- a/arch/powerpc/configs/83xx/mpc8315_rdb_defconfig +++ b/arch/powerpc/configs/83xx/mpc8315_rdb_defconfig @@ -1,26 +1,28 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:06 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:05 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_FSL_EMB_PERFMON is not set # CONFIG_ALTIVEC is not set CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -31,15 +33,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -53,12 +56,14 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y CONFIG_ARCH_SUSPEND_POSSIBLE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -107,7 +112,6 @@ CONFIG_ANON_INODES=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y # CONFIG_KALLSYMS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -120,9 +124,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -135,6 +146,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -147,7 +162,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -189,6 +204,7 @@ CONFIG_MPC831x_RDB=y # CONFIG_MPC837x_RDB is not set # CONFIG_SBC834x is not set # CONFIG_ASP834x is not set +# CONFIG_KMETER1 is not set CONFIG_PPC_MPC831x=y # CONFIG_PPC_86xx is not set # CONFIG_EMBEDDED6xx is not set @@ -234,6 +250,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set # CONFIG_BINFMT_MISC is not set # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -254,9 +271,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -366,6 +383,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -383,7 +401,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -503,6 +525,7 @@ CONFIG_MTD_NAND_IDS=y CONFIG_OF_DEVICE=y CONFIG_OF_I2C=y CONFIG_OF_SPI=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -539,7 +562,9 @@ CONFIG_MISC_DEVICES=y # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_AT25 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -562,10 +587,6 @@ CONFIG_SCSI_PROC_FS=y # CONFIG_BLK_DEV_SR is not set CONFIG_CHR_DEV_SG=y # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -583,6 +604,7 @@ CONFIG_SCSI_SPI_ATTRS=y CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set # CONFIG_SCSI_CXGB3_ISCSI is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -591,6 +613,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -610,7 +633,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set @@ -704,14 +726,17 @@ CONFIG_MD_RAID1=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -775,6 +800,8 @@ CONFIG_E100=y # CONFIG_SMSC9420 is not set # CONFIG_SUNDANCE is not set # CONFIG_TLAN is not set +# CONFIG_KS8842 is not set +# CONFIG_KS8851 is not set # CONFIG_VIA_RHINE is not set # CONFIG_SC92031 is not set # CONFIG_ATL2 is not set @@ -796,8 +823,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -985,7 +1014,6 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set @@ -999,13 +1027,18 @@ CONFIG_SPI_MASTER=y # SPI Master Controller Drivers # CONFIG_SPI_BITBANG=y -CONFIG_SPI_MPC83xx=y +# CONFIG_SPI_MPC8xxx is not set # # SPI Protocol Masters # # CONFIG_SPI_SPIDEV is not set # CONFIG_SPI_TLE62X0 is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -1063,6 +1096,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -1117,24 +1151,10 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set +# CONFIG_EZX_PCAP is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y -# CONFIG_USB_DABUSB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1196,6 +1216,7 @@ CONFIG_USB_MON=y # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_ROOT_HUB_TT=y # CONFIG_USB_EHCI_TT_NEWSCHED is not set @@ -1205,9 +1226,9 @@ CONFIG_USB_EHCI_HCD_PPC_OF=y # CONFIG_USB_ISP116X_HCD is not set # CONFIG_USB_ISP1760_HCD is not set CONFIG_USB_OHCI_HCD=y -CONFIG_USB_OHCI_HCD_PPC_OF=y CONFIG_USB_OHCI_HCD_PPC_OF_BE=y # CONFIG_USB_OHCI_HCD_PPC_OF_LE is not set +CONFIG_USB_OHCI_HCD_PPC_OF=y CONFIG_USB_OHCI_HCD_PCI=y CONFIG_USB_OHCI_BIG_ENDIAN_DESC=y CONFIG_USB_OHCI_BIG_ENDIAN_MMIO=y @@ -1296,8 +1317,9 @@ CONFIG_USB_GADGET_SELECTED=y # CONFIG_USB_GADGET_OMAP is not set # CONFIG_USB_GADGET_PXA25X is not set # CONFIG_USB_GADGET_PXA27X is not set -# CONFIG_USB_GADGET_S3C2410 is not set +# CONFIG_USB_GADGET_S3C_HSOTG is not set # CONFIG_USB_GADGET_IMX is not set +# CONFIG_USB_GADGET_S3C2410 is not set # CONFIG_USB_GADGET_M66592 is not set # CONFIG_USB_GADGET_AMD5536UDC is not set # CONFIG_USB_GADGET_FSL_QE is not set @@ -1305,9 +1327,11 @@ CONFIG_USB_GADGET_SELECTED=y CONFIG_USB_GADGET_NET2280=y CONFIG_USB_NET2280=y # CONFIG_USB_GADGET_GOKU is not set +# CONFIG_USB_GADGET_LANGWELL is not set # CONFIG_USB_GADGET_DUMMY_HCD is not set CONFIG_USB_GADGET_DUALSPEED=y # CONFIG_USB_ZERO is not set +# CONFIG_USB_AUDIO is not set CONFIG_USB_ETH=y CONFIG_USB_ETH_RNDIS=y # CONFIG_USB_GADGETFS is not set @@ -1359,6 +1383,7 @@ CONFIG_RTC_DRV_DS1307=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # CONFIG_RTC_DRV_RX8581 is not set +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1393,6 +1418,10 @@ CONFIG_RTC_DRV_DS1307=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1412,10 +1441,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1489,6 +1520,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set CONFIG_LOCKD=y @@ -1525,7 +1557,46 @@ CONFIG_MSDOS_PARTITION=y # CONFIG_KARMA_PARTITION is not set # CONFIG_EFI_PARTITION is not set # CONFIG_SYSV68_PARTITION is not set -# CONFIG_NLS is not set +CONFIG_NLS=y +CONFIG_NLS_DEFAULT="iso8859-1" +# CONFIG_NLS_CODEPAGE_437 is not set +# CONFIG_NLS_CODEPAGE_737 is not set +# CONFIG_NLS_CODEPAGE_775 is not set +# CONFIG_NLS_CODEPAGE_850 is not set +# CONFIG_NLS_CODEPAGE_852 is not set +# CONFIG_NLS_CODEPAGE_855 is not set +# CONFIG_NLS_CODEPAGE_857 is not set +# CONFIG_NLS_CODEPAGE_860 is not set +# CONFIG_NLS_CODEPAGE_861 is not set +# CONFIG_NLS_CODEPAGE_862 is not set +# CONFIG_NLS_CODEPAGE_863 is not set +# CONFIG_NLS_CODEPAGE_864 is not set +# CONFIG_NLS_CODEPAGE_865 is not set +# CONFIG_NLS_CODEPAGE_866 is not set +# CONFIG_NLS_CODEPAGE_869 is not set +# CONFIG_NLS_CODEPAGE_936 is not set +# CONFIG_NLS_CODEPAGE_950 is not set +# CONFIG_NLS_CODEPAGE_932 is not set +# CONFIG_NLS_CODEPAGE_949 is not set +# CONFIG_NLS_CODEPAGE_874 is not set +# CONFIG_NLS_ISO8859_8 is not set +# CONFIG_NLS_CODEPAGE_1250 is not set +# CONFIG_NLS_CODEPAGE_1251 is not set +# CONFIG_NLS_ASCII is not set +# CONFIG_NLS_ISO8859_1 is not set +# CONFIG_NLS_ISO8859_2 is not set +# CONFIG_NLS_ISO8859_3 is not set +# CONFIG_NLS_ISO8859_4 is not set +# CONFIG_NLS_ISO8859_5 is not set +# CONFIG_NLS_ISO8859_6 is not set +# CONFIG_NLS_ISO8859_7 is not set +# CONFIG_NLS_ISO8859_9 is not set +# CONFIG_NLS_ISO8859_13 is not set +# CONFIG_NLS_ISO8859_14 is not set +# CONFIG_NLS_ISO8859_15 is not set +# CONFIG_NLS_KOI8_R is not set +# CONFIG_NLS_KOI8_U is not set +# CONFIG_NLS_UTF8 is not set # CONFIG_DLM is not set # CONFIG_BINARY_PRINTF is not set @@ -1549,6 +1620,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1579,6 +1651,9 @@ CONFIG_SCHED_DEBUG=y # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -1590,7 +1665,6 @@ CONFIG_SCHED_DEBUG=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -1604,16 +1678,15 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set @@ -1621,6 +1694,9 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_KMEMCHECK is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set diff --git a/arch/powerpc/configs/83xx/mpc832x_mds_defconfig b/arch/powerpc/configs/83xx/mpc832x_mds_defconfig index 8c8f660b4fc..e0e36a11340 100644 --- a/arch/powerpc/configs/83xx/mpc832x_mds_defconfig +++ b/arch/powerpc/configs/83xx/mpc832x_mds_defconfig @@ -1,26 +1,28 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:07 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:06 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_FSL_EMB_PERFMON is not set # CONFIG_ALTIVEC is not set CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -31,15 +33,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -53,12 +56,14 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y CONFIG_ARCH_SUSPEND_POSSIBLE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -107,7 +112,6 @@ CONFIG_ANON_INODES=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y # CONFIG_KALLSYMS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -120,9 +124,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -135,6 +146,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -147,7 +162,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -189,6 +204,7 @@ CONFIG_MPC832x_MDS=y # CONFIG_MPC837x_RDB is not set # CONFIG_SBC834x is not set # CONFIG_ASP834x is not set +# CONFIG_KMETER1 is not set CONFIG_PPC_MPC832x=y # CONFIG_PPC_86xx is not set # CONFIG_EMBEDDED6xx is not set @@ -235,6 +251,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set CONFIG_MATH_EMULATION=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -255,9 +272,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -366,6 +383,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -383,7 +401,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -404,6 +426,7 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y # CONFIG_MTD is not set CONFIG_OF_DEVICE=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -438,7 +461,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -461,10 +486,6 @@ CONFIG_SCSI_PROC_FS=y # CONFIG_BLK_DEV_SR is not set # CONFIG_CHR_DEV_SG is not set # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -482,6 +503,7 @@ CONFIG_SCSI_WAIT_SCAN=m CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set # CONFIG_SCSI_CXGB3_ISCSI is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -490,6 +512,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -509,7 +532,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_QLOGIC_1280 is not set @@ -532,14 +554,17 @@ CONFIG_SCSI_LOWLEVEL=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -586,6 +611,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -605,11 +631,13 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y # CONFIG_GIANFAR is not set CONFIG_UCC_GETH=y # CONFIG_UGETH_MAGIC_PACKET is not set # CONFIG_UGETH_TX_ON_DEMAND is not set +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -787,13 +815,17 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -848,6 +880,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -896,23 +929,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -996,6 +1015,7 @@ CONFIG_RTC_DRV_DS1374=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # CONFIG_RTC_DRV_RX8581 is not set +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1023,6 +1043,10 @@ CONFIG_RTC_DRV_DS1374=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1042,10 +1066,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1108,6 +1134,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set CONFIG_LOCKD=y @@ -1165,6 +1192,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1190,22 +1218,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_BOOTX_TEXT is not set diff --git a/arch/powerpc/configs/83xx/mpc832x_rdb_defconfig b/arch/powerpc/configs/83xx/mpc832x_rdb_defconfig index 227dbba7679..4f27d454822 100644 --- a/arch/powerpc/configs/83xx/mpc832x_rdb_defconfig +++ b/arch/powerpc/configs/83xx/mpc832x_rdb_defconfig @@ -1,26 +1,28 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:08 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:07 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_FSL_EMB_PERFMON is not set # CONFIG_ALTIVEC is not set CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -31,15 +33,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -53,12 +56,14 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y CONFIG_ARCH_SUSPEND_POSSIBLE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -107,7 +112,6 @@ CONFIG_ANON_INODES=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y # CONFIG_KALLSYMS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -120,9 +124,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -135,6 +146,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -147,7 +162,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -189,6 +204,7 @@ CONFIG_MPC832x_RDB=y # CONFIG_MPC837x_RDB is not set # CONFIG_SBC834x is not set # CONFIG_ASP834x is not set +# CONFIG_KMETER1 is not set CONFIG_PPC_MPC832x=y # CONFIG_PPC_86xx is not set # CONFIG_EMBEDDED6xx is not set @@ -235,6 +251,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set CONFIG_MATH_EMULATION=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -255,9 +272,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -366,6 +383,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -383,7 +401,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -405,6 +427,7 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y CONFIG_OF_DEVICE=y CONFIG_OF_I2C=y CONFIG_OF_SPI=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -441,7 +464,9 @@ CONFIG_MISC_DEVICES=y # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_AT25 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -464,10 +489,6 @@ CONFIG_BLK_DEV_SD=y # CONFIG_BLK_DEV_SR is not set # CONFIG_CHR_DEV_SG is not set # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -485,6 +506,7 @@ CONFIG_SCSI_WAIT_SCAN=m CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set # CONFIG_SCSI_CXGB3_ISCSI is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -493,6 +515,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -512,7 +535,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_QLOGIC_1280 is not set @@ -535,14 +557,17 @@ CONFIG_SCSI_LOWLEVEL=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -590,6 +615,8 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set +# CONFIG_KS8851 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -609,11 +636,13 @@ CONFIG_E1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y # CONFIG_GIANFAR is not set CONFIG_UCC_GETH=y # CONFIG_UGETH_MAGIC_PACKET is not set # CONFIG_UGETH_TX_ON_DEMAND is not set +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -804,7 +833,6 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set @@ -817,13 +845,18 @@ CONFIG_SPI_MASTER=y # SPI Master Controller Drivers # CONFIG_SPI_BITBANG=y -CONFIG_SPI_MPC83xx=y +# CONFIG_SPI_MPC8xxx is not set # # SPI Protocol Masters # # CONFIG_SPI_SPIDEV is not set # CONFIG_SPI_TLE62X0 is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -881,6 +914,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -935,24 +969,10 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set +# CONFIG_EZX_PCAP is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y -# CONFIG_USB_DABUSB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1014,6 +1034,7 @@ CONFIG_USB_MON=y # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set CONFIG_USB_EHCI_HCD=y # CONFIG_USB_EHCI_ROOT_HUB_TT is not set # CONFIG_USB_EHCI_TT_NEWSCHED is not set @@ -1023,9 +1044,9 @@ CONFIG_USB_EHCI_HCD_PPC_OF=y # CONFIG_USB_ISP116X_HCD is not set # CONFIG_USB_ISP1760_HCD is not set CONFIG_USB_OHCI_HCD=y -CONFIG_USB_OHCI_HCD_PPC_OF=y CONFIG_USB_OHCI_HCD_PPC_OF_BE=y # CONFIG_USB_OHCI_HCD_PPC_OF_LE is not set +CONFIG_USB_OHCI_HCD_PPC_OF=y CONFIG_USB_OHCI_HCD_PCI=y CONFIG_USB_OHCI_BIG_ENDIAN_DESC=y CONFIG_USB_OHCI_BIG_ENDIAN_MMIO=y @@ -1127,6 +1148,8 @@ CONFIG_MMC_BLOCK_BOUNCE=y # CONFIG_MMC_WBSD is not set # CONFIG_MMC_TIFM_SD is not set CONFIG_MMC_SPI=y +# CONFIG_MMC_CB710 is not set +# CONFIG_MMC_VIA_SDMMC is not set # CONFIG_MEMSTICK is not set # CONFIG_NEW_LEDS is not set # CONFIG_ACCESSIBILITY is not set @@ -1136,6 +1159,10 @@ CONFIG_MMC_SPI=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1155,10 +1182,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1224,6 +1253,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set CONFIG_LOCKD=y @@ -1325,6 +1355,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1350,22 +1381,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_BOOTX_TEXT is not set diff --git a/arch/powerpc/configs/83xx/mpc834x_itx_defconfig b/arch/powerpc/configs/83xx/mpc834x_itx_defconfig index 24ee7fcac87..648dac0c9d8 100644 --- a/arch/powerpc/configs/83xx/mpc834x_itx_defconfig +++ b/arch/powerpc/configs/83xx/mpc834x_itx_defconfig @@ -1,26 +1,28 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:09 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:07 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_FSL_EMB_PERFMON is not set # CONFIG_ALTIVEC is not set CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -31,15 +33,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -53,12 +56,14 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y CONFIG_ARCH_SUSPEND_POSSIBLE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -107,7 +112,6 @@ CONFIG_ANON_INODES=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y # CONFIG_KALLSYMS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -120,9 +124,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -135,6 +146,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -147,7 +162,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -189,6 +204,7 @@ CONFIG_MPC834x_ITX=y # CONFIG_MPC837x_RDB is not set # CONFIG_SBC834x is not set # CONFIG_ASP834x is not set +# CONFIG_KMETER1 is not set CONFIG_PPC_MPC834x=y # CONFIG_PPC_86xx is not set # CONFIG_EMBEDDED6xx is not set @@ -234,6 +250,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set # CONFIG_BINFMT_MISC is not set # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -254,9 +271,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -365,6 +382,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -382,7 +400,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -487,6 +509,7 @@ CONFIG_MTD_PHYSMAP=y CONFIG_OF_DEVICE=y CONFIG_OF_I2C=y CONFIG_OF_SPI=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -523,7 +546,9 @@ CONFIG_MISC_DEVICES=y # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_AT25 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y CONFIG_IDE=y @@ -594,10 +619,6 @@ CONFIG_BLK_DEV_SD=y # CONFIG_BLK_DEV_SR is not set CONFIG_CHR_DEV_SG=y # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -615,6 +636,7 @@ CONFIG_SCSI_SPI_ATTRS=y CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set # CONFIG_SCSI_CXGB3_ISCSI is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -623,6 +645,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -642,7 +665,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set @@ -737,14 +759,17 @@ CONFIG_MD_RAID1=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -791,8 +816,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -960,7 +987,6 @@ CONFIG_I2C_MPC=y CONFIG_SENSORS_PCF8574=y # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set @@ -973,13 +999,18 @@ CONFIG_SPI_MASTER=y # SPI Master Controller Drivers # CONFIG_SPI_BITBANG=y -CONFIG_SPI_MPC83xx=y +# CONFIG_SPI_MPC8xxx is not set # # SPI Protocol Masters # # CONFIG_SPI_SPIDEV is not set # CONFIG_SPI_TLE62X0 is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -1026,24 +1057,10 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set +# CONFIG_EZX_PCAP is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y -# CONFIG_USB_DABUSB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1085,6 +1102,7 @@ CONFIG_USB_MON=y # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_ROOT_HUB_TT=y # CONFIG_USB_EHCI_TT_NEWSCHED is not set @@ -1208,6 +1226,7 @@ CONFIG_RTC_DRV_DS1307=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # CONFIG_RTC_DRV_RX8581 is not set +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1242,6 +1261,10 @@ CONFIG_RTC_DRV_DS1307=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1261,10 +1284,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1331,6 +1356,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set CONFIG_LOCKD=y @@ -1429,6 +1455,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1454,22 +1481,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_BOOTX_TEXT is not set diff --git a/arch/powerpc/configs/83xx/mpc834x_itxgp_defconfig b/arch/powerpc/configs/83xx/mpc834x_itxgp_defconfig index 7f39543205a..bf6deb831dc 100644 --- a/arch/powerpc/configs/83xx/mpc834x_itxgp_defconfig +++ b/arch/powerpc/configs/83xx/mpc834x_itxgp_defconfig @@ -1,26 +1,28 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:10 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:08 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_FSL_EMB_PERFMON is not set # CONFIG_ALTIVEC is not set CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -31,15 +33,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -53,12 +56,14 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y CONFIG_ARCH_SUSPEND_POSSIBLE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -107,7 +112,6 @@ CONFIG_ANON_INODES=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y # CONFIG_KALLSYMS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -120,9 +124,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -135,6 +146,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -147,7 +162,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -189,6 +204,7 @@ CONFIG_MPC834x_ITX=y # CONFIG_MPC837x_RDB is not set # CONFIG_SBC834x is not set # CONFIG_ASP834x is not set +# CONFIG_KMETER1 is not set CONFIG_PPC_MPC834x=y # CONFIG_PPC_86xx is not set # CONFIG_EMBEDDED6xx is not set @@ -234,6 +250,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set # CONFIG_BINFMT_MISC is not set # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -254,9 +271,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -365,6 +382,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -382,7 +400,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -487,6 +509,7 @@ CONFIG_MTD_PHYSMAP=y CONFIG_OF_DEVICE=y CONFIG_OF_I2C=y CONFIG_OF_SPI=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -523,7 +546,9 @@ CONFIG_MISC_DEVICES=y # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_AT25 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -546,10 +571,6 @@ CONFIG_BLK_DEV_SD=y # CONFIG_BLK_DEV_SR is not set CONFIG_CHR_DEV_SG=y # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -567,6 +588,7 @@ CONFIG_SCSI_SPI_ATTRS=y CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set # CONFIG_SCSI_CXGB3_ISCSI is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -575,6 +597,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -594,7 +617,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_QLOGIC_1280 is not set @@ -617,14 +639,17 @@ CONFIG_SCSI_LOWLEVEL=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -671,8 +696,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -840,7 +867,6 @@ CONFIG_I2C_MPC=y CONFIG_SENSORS_PCF8574=y # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set @@ -853,13 +879,18 @@ CONFIG_SPI_MASTER=y # SPI Master Controller Drivers # CONFIG_SPI_BITBANG=y -CONFIG_SPI_MPC83xx=y +# CONFIG_SPI_MPC8xxx is not set # # SPI Protocol Masters # # CONFIG_SPI_SPIDEV is not set # CONFIG_SPI_TLE62X0 is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -906,24 +937,10 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set +# CONFIG_EZX_PCAP is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y -# CONFIG_USB_DABUSB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -965,6 +982,7 @@ CONFIG_USB_MON=y # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_ROOT_HUB_TT=y # CONFIG_USB_EHCI_TT_NEWSCHED is not set @@ -1087,6 +1105,7 @@ CONFIG_RTC_DRV_DS1307=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # CONFIG_RTC_DRV_RX8581 is not set +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1121,6 +1140,10 @@ CONFIG_RTC_DRV_DS1307=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1140,10 +1163,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1210,6 +1235,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set CONFIG_LOCKD=y @@ -1308,6 +1334,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1333,22 +1360,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_BOOTX_TEXT is not set diff --git a/arch/powerpc/configs/83xx/mpc834x_mds_defconfig b/arch/powerpc/configs/83xx/mpc834x_mds_defconfig index 1cd1fcac22c..3236c47712c 100644 --- a/arch/powerpc/configs/83xx/mpc834x_mds_defconfig +++ b/arch/powerpc/configs/83xx/mpc834x_mds_defconfig @@ -1,26 +1,28 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:11 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:09 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_FSL_EMB_PERFMON is not set # CONFIG_ALTIVEC is not set CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -31,15 +33,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -53,12 +56,14 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y CONFIG_ARCH_SUSPEND_POSSIBLE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -107,7 +112,6 @@ CONFIG_ANON_INODES=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y # CONFIG_KALLSYMS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -120,9 +124,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -135,6 +146,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -147,7 +162,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -189,6 +204,7 @@ CONFIG_MPC834x_MDS=y # CONFIG_MPC837x_RDB is not set # CONFIG_SBC834x is not set # CONFIG_ASP834x is not set +# CONFIG_KMETER1 is not set CONFIG_PPC_MPC834x=y # CONFIG_PPC_86xx is not set # CONFIG_EMBEDDED6xx is not set @@ -234,6 +250,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set # CONFIG_BINFMT_MISC is not set # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -254,9 +271,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -365,6 +382,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -382,7 +400,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -403,6 +425,7 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y # CONFIG_MTD is not set CONFIG_OF_DEVICE=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -437,7 +460,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -457,14 +482,17 @@ CONFIG_HAVE_IDE=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -527,6 +555,7 @@ CONFIG_E100=y # CONFIG_SMSC9420 is not set # CONFIG_SUNDANCE is not set # CONFIG_TLAN is not set +# CONFIG_KS8842 is not set # CONFIG_VIA_RHINE is not set # CONFIG_SC92031 is not set # CONFIG_ATL2 is not set @@ -548,8 +577,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -724,13 +755,17 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -785,6 +820,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -833,23 +869,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -933,6 +955,7 @@ CONFIG_RTC_DRV_DS1374=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # CONFIG_RTC_DRV_RX8581 is not set +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -960,6 +983,10 @@ CONFIG_RTC_DRV_DS1374=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -979,10 +1006,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1045,6 +1074,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set CONFIG_LOCKD=y @@ -1100,6 +1130,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1125,22 +1156,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_BOOTX_TEXT is not set diff --git a/arch/powerpc/configs/83xx/mpc836x_mds_defconfig b/arch/powerpc/configs/83xx/mpc836x_mds_defconfig index ce5177393a0..8c5299d7481 100644 --- a/arch/powerpc/configs/83xx/mpc836x_mds_defconfig +++ b/arch/powerpc/configs/83xx/mpc836x_mds_defconfig @@ -1,26 +1,28 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:12 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:10 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_FSL_EMB_PERFMON is not set # CONFIG_ALTIVEC is not set CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -31,15 +33,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -53,12 +56,14 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y CONFIG_ARCH_SUSPEND_POSSIBLE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -107,7 +112,6 @@ CONFIG_ANON_INODES=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y # CONFIG_KALLSYMS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -120,9 +124,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -135,6 +146,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -147,7 +162,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -189,6 +204,7 @@ CONFIG_MPC836x_MDS=y # CONFIG_MPC837x_RDB is not set # CONFIG_SBC834x is not set # CONFIG_ASP834x is not set +# CONFIG_KMETER1 is not set # CONFIG_PPC_86xx is not set # CONFIG_EMBEDDED6xx is not set # CONFIG_AMIGAONE is not set @@ -233,6 +249,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set # CONFIG_BINFMT_MISC is not set # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -253,9 +270,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -364,6 +381,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -381,7 +399,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -485,6 +507,7 @@ CONFIG_MTD_PHYSMAP_OF=y # CONFIG_MTD_UBI is not set CONFIG_OF_DEVICE=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -519,7 +542,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -542,10 +567,6 @@ CONFIG_SCSI_PROC_FS=y # CONFIG_BLK_DEV_SR is not set # CONFIG_CHR_DEV_SG is not set # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -563,6 +584,7 @@ CONFIG_SCSI_WAIT_SCAN=m CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set # CONFIG_SCSI_CXGB3_ISCSI is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -571,6 +593,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -590,7 +613,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_QLOGIC_1280 is not set @@ -613,14 +635,17 @@ CONFIG_SCSI_LOWLEVEL=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -667,6 +692,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -686,11 +712,13 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y # CONFIG_GIANFAR is not set CONFIG_UCC_GETH=y # CONFIG_UGETH_MAGIC_PACKET is not set # CONFIG_UGETH_TX_ON_DEMAND is not set +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -868,13 +896,17 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -929,6 +961,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -977,23 +1010,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1077,6 +1096,7 @@ CONFIG_RTC_DRV_DS1374=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # CONFIG_RTC_DRV_RX8581 is not set +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1104,6 +1124,10 @@ CONFIG_RTC_DRV_DS1374=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1123,10 +1147,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1190,6 +1216,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set CONFIG_LOCKD=y @@ -1247,6 +1274,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1272,22 +1300,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_BOOTX_TEXT is not set diff --git a/arch/powerpc/configs/83xx/mpc836x_rdk_defconfig b/arch/powerpc/configs/83xx/mpc836x_rdk_defconfig index 7f1d1383a24..ff31667a890 100644 --- a/arch/powerpc/configs/83xx/mpc836x_rdk_defconfig +++ b/arch/powerpc/configs/83xx/mpc836x_rdk_defconfig @@ -1,26 +1,28 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:13 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:12 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_FSL_EMB_PERFMON is not set # CONFIG_ALTIVEC is not set CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -31,15 +33,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_GPIO=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set @@ -54,12 +57,14 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y CONFIG_ARCH_SUSPEND_POSSIBLE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -108,7 +113,6 @@ CONFIG_ANON_INODES=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y # CONFIG_KALLSYMS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -121,9 +125,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -136,6 +147,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -148,7 +163,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -190,6 +205,7 @@ CONFIG_MPC836x_RDK=y # CONFIG_MPC837x_RDB is not set # CONFIG_SBC834x is not set # CONFIG_ASP834x is not set +# CONFIG_KMETER1 is not set # CONFIG_PPC_86xx is not set # CONFIG_EMBEDDED6xx is not set # CONFIG_AMIGAONE is not set @@ -233,6 +249,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set # CONFIG_BINFMT_MISC is not set # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -253,9 +270,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -366,6 +383,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -383,7 +401,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -498,6 +520,7 @@ CONFIG_OF_DEVICE=y CONFIG_OF_GPIO=y CONFIG_OF_I2C=y CONFIG_OF_SPI=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -533,7 +556,9 @@ CONFIG_MISC_DEVICES=y # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_AT25 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -553,14 +578,17 @@ CONFIG_HAVE_IDE=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -607,11 +635,13 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y # CONFIG_GIANFAR is not set CONFIG_UCC_GETH=y # CONFIG_UGETH_MAGIC_PACKET is not set # CONFIG_UGETH_TX_ON_DEMAND is not set +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -777,7 +807,6 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set @@ -791,13 +820,18 @@ CONFIG_SPI_MASTER=y # CONFIG_SPI_BITBANG=y # CONFIG_SPI_GPIO is not set -CONFIG_SPI_MPC83xx=y +# CONFIG_SPI_MPC8xxx is not set # # SPI Protocol Masters # CONFIG_SPI_SPIDEV=y # CONFIG_SPI_TLE62X0 is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_ARCH_REQUIRE_GPIOLIB=y CONFIG_GPIOLIB=y @@ -865,23 +899,10 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set +# CONFIG_EZX_PCAP is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -990,6 +1011,10 @@ CONFIG_HID=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1009,10 +1034,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1086,6 +1113,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set CONFIG_LOCKD=y @@ -1145,6 +1173,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1170,22 +1199,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_BOOTX_TEXT is not set diff --git a/arch/powerpc/configs/83xx/mpc837x_mds_defconfig b/arch/powerpc/configs/83xx/mpc837x_mds_defconfig index bf636fd560a..e285ec0fe95 100644 --- a/arch/powerpc/configs/83xx/mpc837x_mds_defconfig +++ b/arch/powerpc/configs/83xx/mpc837x_mds_defconfig @@ -1,26 +1,28 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:12 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:11 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_FSL_EMB_PERFMON is not set # CONFIG_ALTIVEC is not set CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -31,15 +33,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -53,12 +56,14 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y CONFIG_ARCH_SUSPEND_POSSIBLE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -108,7 +113,6 @@ CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -121,8 +125,15 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y CONFIG_SLAB=y # CONFIG_SLUB is not set @@ -136,6 +147,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -148,7 +163,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -190,6 +205,7 @@ CONFIG_MPC837x_MDS=y # CONFIG_MPC837x_RDB is not set # CONFIG_SBC834x is not set # CONFIG_ASP834x is not set +# CONFIG_KMETER1 is not set CONFIG_PPC_MPC837x=y # CONFIG_PPC_86xx is not set # CONFIG_EMBEDDED6xx is not set @@ -234,6 +250,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set # CONFIG_BINFMT_MISC is not set # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -254,9 +271,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -365,6 +382,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -382,7 +400,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -403,6 +425,7 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y # CONFIG_MTD is not set CONFIG_OF_DEVICE=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -437,7 +460,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -460,10 +485,6 @@ CONFIG_BLK_DEV_SD=y # CONFIG_BLK_DEV_SR is not set CONFIG_CHR_DEV_SG=y # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -481,6 +502,7 @@ CONFIG_SCSI_WAIT_SCAN=m CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set # CONFIG_SCSI_CXGB3_ISCSI is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -489,6 +511,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -508,7 +531,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set @@ -592,14 +614,17 @@ CONFIG_ATA_SFF=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -646,6 +671,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -665,8 +691,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -844,13 +872,17 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -905,6 +937,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -953,23 +986,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1026,6 +1045,10 @@ CONFIG_USB_ARCH_HAS_EHCI=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1045,10 +1068,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1111,6 +1136,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set CONFIG_LOCKD=y @@ -1170,6 +1196,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1193,22 +1220,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_BOOTX_TEXT is not set diff --git a/arch/powerpc/configs/83xx/mpc837x_rdb_defconfig b/arch/powerpc/configs/83xx/mpc837x_rdb_defconfig index fe6454eacbd..1ab3e4cd301 100644 --- a/arch/powerpc/configs/83xx/mpc837x_rdb_defconfig +++ b/arch/powerpc/configs/83xx/mpc837x_rdb_defconfig @@ -1,26 +1,28 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:14 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:13 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_FSL_EMB_PERFMON is not set # CONFIG_ALTIVEC is not set CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -31,15 +33,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -53,12 +56,14 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y CONFIG_ARCH_SUSPEND_POSSIBLE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -108,7 +113,6 @@ CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -121,8 +125,15 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y CONFIG_SLAB=y # CONFIG_SLUB is not set @@ -136,6 +147,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -148,7 +163,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -190,6 +205,7 @@ CONFIG_PPC_83xx=y CONFIG_MPC837x_RDB=y # CONFIG_SBC834x is not set # CONFIG_ASP834x is not set +# CONFIG_KMETER1 is not set CONFIG_PPC_MPC837x=y # CONFIG_PPC_86xx is not set # CONFIG_EMBEDDED6xx is not set @@ -234,6 +250,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set # CONFIG_BINFMT_MISC is not set # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -254,9 +271,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -360,6 +377,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -377,7 +395,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -398,6 +420,7 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y # CONFIG_MTD is not set CONFIG_OF_DEVICE=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -433,7 +456,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -456,10 +481,6 @@ CONFIG_BLK_DEV_SD=y # CONFIG_BLK_DEV_SR is not set CONFIG_CHR_DEV_SG=y # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -476,6 +497,7 @@ CONFIG_SCSI_WAIT_SCAN=m # CONFIG_SCSI_SRP_ATTRS is not set CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -484,6 +506,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -503,7 +526,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set @@ -598,14 +620,17 @@ CONFIG_MD_RAID6_PQ=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -652,6 +677,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -671,8 +697,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -842,13 +870,17 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -903,6 +935,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -956,24 +989,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y -# CONFIG_USB_DABUSB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1011,7 +1029,7 @@ CONFIG_HID_BELKIN=y CONFIG_HID_CHERRY=y CONFIG_HID_CHICONY=y CONFIG_HID_CYPRESS=y -# CONFIG_DRAGONRISE_FF is not set +# CONFIG_HID_DRAGONRISE is not set CONFIG_HID_EZKEY=y # CONFIG_HID_KYE is not set CONFIG_HID_GYRATION=y @@ -1028,10 +1046,11 @@ CONFIG_HID_PETALYNX=y CONFIG_HID_SAMSUNG=y CONFIG_HID_SONY=y CONFIG_HID_SUNPLUS=y -# CONFIG_GREENASIA_FF is not set +# CONFIG_HID_GREENASIA is not set +# CONFIG_HID_SMARTJOYPLUS is not set # CONFIG_HID_TOPSEED is not set -CONFIG_THRUSTMASTER_FF=m -CONFIG_ZEROPLUS_FF=m +# CONFIG_HID_THRUSTMASTER is not set +# CONFIG_HID_ZEROPLUS is not set CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y @@ -1057,6 +1076,7 @@ CONFIG_USB_MON=y # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_ROOT_HUB_TT=y # CONFIG_USB_EHCI_TT_NEWSCHED is not set @@ -1141,6 +1161,10 @@ CONFIG_USB_EHCI_HCD_PPC_OF=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1160,10 +1184,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1226,6 +1252,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set CONFIG_LOCKD=y @@ -1262,7 +1289,46 @@ CONFIG_MSDOS_PARTITION=y # CONFIG_KARMA_PARTITION is not set # CONFIG_EFI_PARTITION is not set # CONFIG_SYSV68_PARTITION is not set -# CONFIG_NLS is not set +CONFIG_NLS=y +CONFIG_NLS_DEFAULT="iso8859-1" +# CONFIG_NLS_CODEPAGE_437 is not set +# CONFIG_NLS_CODEPAGE_737 is not set +# CONFIG_NLS_CODEPAGE_775 is not set +# CONFIG_NLS_CODEPAGE_850 is not set +# CONFIG_NLS_CODEPAGE_852 is not set +# CONFIG_NLS_CODEPAGE_855 is not set +# CONFIG_NLS_CODEPAGE_857 is not set +# CONFIG_NLS_CODEPAGE_860 is not set +# CONFIG_NLS_CODEPAGE_861 is not set +# CONFIG_NLS_CODEPAGE_862 is not set +# CONFIG_NLS_CODEPAGE_863 is not set +# CONFIG_NLS_CODEPAGE_864 is not set +# CONFIG_NLS_CODEPAGE_865 is not set +# CONFIG_NLS_CODEPAGE_866 is not set +# CONFIG_NLS_CODEPAGE_869 is not set +# CONFIG_NLS_CODEPAGE_936 is not set +# CONFIG_NLS_CODEPAGE_950 is not set +# CONFIG_NLS_CODEPAGE_932 is not set +# CONFIG_NLS_CODEPAGE_949 is not set +# CONFIG_NLS_CODEPAGE_874 is not set +# CONFIG_NLS_ISO8859_8 is not set +# CONFIG_NLS_CODEPAGE_1250 is not set +# CONFIG_NLS_CODEPAGE_1251 is not set +# CONFIG_NLS_ASCII is not set +# CONFIG_NLS_ISO8859_1 is not set +# CONFIG_NLS_ISO8859_2 is not set +# CONFIG_NLS_ISO8859_3 is not set +# CONFIG_NLS_ISO8859_4 is not set +# CONFIG_NLS_ISO8859_5 is not set +# CONFIG_NLS_ISO8859_6 is not set +# CONFIG_NLS_ISO8859_7 is not set +# CONFIG_NLS_ISO8859_9 is not set +# CONFIG_NLS_ISO8859_13 is not set +# CONFIG_NLS_ISO8859_14 is not set +# CONFIG_NLS_ISO8859_15 is not set +# CONFIG_NLS_KOI8_R is not set +# CONFIG_NLS_KOI8_U is not set +# CONFIG_NLS_UTF8 is not set # CONFIG_DLM is not set # CONFIG_BINARY_PRINTF is not set @@ -1285,6 +1351,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1308,22 +1375,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_BOOTX_TEXT is not set diff --git a/arch/powerpc/configs/83xx/sbc834x_defconfig b/arch/powerpc/configs/83xx/sbc834x_defconfig index fe08f672cb2..a592b5efdc4 100644 --- a/arch/powerpc/configs/83xx/sbc834x_defconfig +++ b/arch/powerpc/configs/83xx/sbc834x_defconfig @@ -1,26 +1,28 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:15 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:13 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_FSL_EMB_PERFMON is not set # CONFIG_ALTIVEC is not set CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -31,15 +33,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -53,12 +56,14 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y CONFIG_ARCH_SUSPEND_POSSIBLE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -107,7 +112,6 @@ CONFIG_ANON_INODES=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y # CONFIG_KALLSYMS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -120,8 +124,15 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y CONFIG_SLAB=y # CONFIG_SLUB is not set @@ -134,6 +145,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -146,7 +161,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -188,6 +203,7 @@ CONFIG_PPC_83xx=y # CONFIG_MPC837x_RDB is not set CONFIG_SBC834x=y # CONFIG_ASP834x is not set +# CONFIG_KMETER1 is not set CONFIG_PPC_MPC834x=y # CONFIG_PPC_86xx is not set # CONFIG_EMBEDDED6xx is not set @@ -232,6 +248,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set # CONFIG_BINFMT_MISC is not set # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -252,9 +269,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -363,6 +380,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -380,7 +398,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -401,6 +423,7 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y # CONFIG_MTD is not set CONFIG_OF_DEVICE=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -435,7 +458,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -455,14 +480,17 @@ CONFIG_HAVE_IDE=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -509,6 +537,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -528,8 +557,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -688,13 +719,17 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -749,6 +784,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -797,23 +833,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -# CONFIG_DAB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -851,6 +873,10 @@ CONFIG_HID=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -862,10 +888,12 @@ CONFIG_HID=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -928,6 +956,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set CONFIG_LOCKD=y @@ -971,6 +1000,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -994,22 +1024,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_BOOTX_TEXT is not set diff --git a/arch/powerpc/configs/85xx/ksi8560_defconfig b/arch/powerpc/configs/85xx/ksi8560_defconfig index 09146ddaa3c..ff04e1028f5 100644 --- a/arch/powerpc/configs/85xx/ksi8560_defconfig +++ b/arch/powerpc/configs/85xx/ksi8560_defconfig @@ -1,14 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:16 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:14 2009 # # CONFIG_PPC64 is not set # # Processor support # -# CONFIG_6xx is not set +# CONFIG_PPC_BOOK3S_32 is not set CONFIG_PPC_85xx=y # CONFIG_PPC_8xx is not set # CONFIG_40x is not set @@ -34,15 +34,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_GPIO=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set @@ -57,11 +58,13 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -108,7 +111,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -121,8 +123,15 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -136,6 +145,11 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_CLK=y + +# +# GCOV-based kernel profiling +# +# CONFIG_GCOV_KERNEL is not set # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -143,7 +157,7 @@ CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 # CONFIG_MODULES is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -176,6 +190,7 @@ CONFIG_MPC85xx=y # CONFIG_MPC85xx_DS is not set # CONFIG_SOCRATES is not set CONFIG_KSI8560=y +# CONFIG_XES_MPC85xx is not set # CONFIG_STX_GP3 is not set # CONFIG_TQM8540 is not set # CONFIG_TQM8541 is not set @@ -224,6 +239,7 @@ CONFIG_BINFMT_ELF=y CONFIG_BINFMT_MISC=y CONFIG_MATH_EMULATION=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -242,9 +258,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -346,6 +362,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -363,7 +380,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -466,6 +487,7 @@ CONFIG_MTD_PHYSMAP_OF=y # CONFIG_MTD_UBI is not set CONFIG_OF_DEVICE=y CONFIG_OF_GPIO=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -520,7 +542,6 @@ CONFIG_IDE_PROC_FS=y # CONFIG_MD is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -560,6 +581,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set CONFIG_FS_ENET=y # CONFIG_FS_ENET_HAS_SCC is not set CONFIG_FS_ENET_HAS_FCC=y @@ -567,6 +589,7 @@ CONFIG_FS_ENET_MDIO_FCC=y CONFIG_NETDEV_1000=y CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set CONFIG_NETDEV_10000=y # @@ -654,6 +677,11 @@ CONFIG_GEN_RTC=y # CONFIG_TCG_TPM is not set # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_ARCH_REQUIRE_GPIOLIB=y CONFIG_GPIOLIB=y @@ -710,22 +738,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -777,6 +790,10 @@ CONFIG_USB_SUPPORT=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -797,10 +814,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -916,6 +935,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -946,6 +966,9 @@ CONFIG_SCHED_DEBUG=y # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set CONFIG_DEBUG_MUTEXES=y +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -958,7 +981,6 @@ CONFIG_DEBUG_MUTEXES=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -972,16 +994,15 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set @@ -990,9 +1011,13 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_KMEMCHECK is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set +# CONFIG_PPC_EMULATED_STATS is not set # CONFIG_CODE_PATCHING_SELFTEST is not set # CONFIG_FTR_FIXUP_SELFTEST is not set # CONFIG_MSI_BITMAP_SELFTEST is not set diff --git a/arch/powerpc/configs/85xx/mpc8540_ads_defconfig b/arch/powerpc/configs/85xx/mpc8540_ads_defconfig index 7b43be7586b..fb10cc83702 100644 --- a/arch/powerpc/configs/85xx/mpc8540_ads_defconfig +++ b/arch/powerpc/configs/85xx/mpc8540_ads_defconfig @@ -1,14 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:17 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:15 2009 # # CONFIG_PPC64 is not set # # Processor support # -# CONFIG_6xx is not set +# CONFIG_PPC_BOOK3S_32 is not set CONFIG_PPC_85xx=y # CONFIG_PPC_8xx is not set # CONFIG_40x is not set @@ -34,15 +34,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -56,11 +57,13 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -111,7 +114,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -124,8 +126,15 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -138,6 +147,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -145,7 +158,7 @@ CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 # CONFIG_MODULES is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -178,6 +191,7 @@ CONFIG_MPC8540_ADS=y # CONFIG_MPC85xx_DS is not set # CONFIG_SOCRATES is not set # CONFIG_KSI8560 is not set +# CONFIG_XES_MPC85xx is not set # CONFIG_STX_GP3 is not set # CONFIG_TQM8540 is not set # CONFIG_TQM8541 is not set @@ -226,6 +240,7 @@ CONFIG_BINFMT_ELF=y CONFIG_BINFMT_MISC=y CONFIG_MATH_EMULATION=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -244,9 +259,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -348,6 +363,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -365,7 +381,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -387,6 +407,7 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y # CONFIG_CONNECTOR is not set # CONFIG_MTD is not set CONFIG_OF_DEVICE=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -423,7 +444,6 @@ CONFIG_HAVE_IDE=y # CONFIG_MD is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -462,9 +482,11 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set CONFIG_NETDEV_1000=y CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set CONFIG_NETDEV_10000=y # @@ -555,6 +577,11 @@ CONFIG_GEN_RTC=y # CONFIG_TCG_TPM is not set # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -590,22 +617,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -657,6 +669,10 @@ CONFIG_USB_SUPPORT=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -676,10 +692,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -794,6 +812,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -824,6 +843,9 @@ CONFIG_SCHED_DEBUG=y # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set CONFIG_DEBUG_MUTEXES=y +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -835,7 +857,6 @@ CONFIG_DEBUG_MUTEXES=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -849,16 +870,15 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set @@ -866,6 +886,9 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_KMEMCHECK is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set diff --git a/arch/powerpc/configs/85xx/mpc8560_ads_defconfig b/arch/powerpc/configs/85xx/mpc8560_ads_defconfig index 62adb71a5d4..5c8ce697882 100644 --- a/arch/powerpc/configs/85xx/mpc8560_ads_defconfig +++ b/arch/powerpc/configs/85xx/mpc8560_ads_defconfig @@ -1,14 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:17 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:16 2009 # # CONFIG_PPC64 is not set # # Processor support # -# CONFIG_6xx is not set +# CONFIG_PPC_BOOK3S_32 is not set CONFIG_PPC_85xx=y # CONFIG_PPC_8xx is not set # CONFIG_40x is not set @@ -34,15 +34,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_GPIO=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set @@ -57,11 +58,13 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -112,7 +115,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -125,9 +127,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -141,6 +150,10 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_CLK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -148,7 +161,7 @@ CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 # CONFIG_MODULES is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -181,6 +194,7 @@ CONFIG_MPC8560_ADS=y # CONFIG_MPC85xx_DS is not set # CONFIG_SOCRATES is not set # CONFIG_KSI8560 is not set +# CONFIG_XES_MPC85xx is not set # CONFIG_STX_GP3 is not set # CONFIG_TQM8540 is not set # CONFIG_TQM8541 is not set @@ -229,6 +243,7 @@ CONFIG_BINFMT_ELF=y CONFIG_BINFMT_MISC=y CONFIG_MATH_EMULATION=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -247,9 +262,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -360,6 +375,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -377,7 +393,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -400,6 +420,7 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y # CONFIG_MTD is not set CONFIG_OF_DEVICE=y CONFIG_OF_GPIO=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -431,6 +452,7 @@ CONFIG_MISC_DEVICES=y # EEPROM support # # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -450,14 +472,17 @@ CONFIG_HAVE_IDE=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -504,6 +529,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_FS_ENET=y # CONFIG_FS_ENET_HAS_SCC is not set @@ -527,8 +553,10 @@ CONFIG_E1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -646,6 +674,11 @@ CONFIG_GEN_RTC=y CONFIG_DEVPORT=y # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_ARCH_REQUIRE_GPIOLIB=y CONFIG_GPIOLIB=y @@ -707,22 +740,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -779,6 +797,10 @@ CONFIG_USB_ARCH_HAS_EHCI=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -798,10 +820,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -916,6 +940,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -946,6 +971,9 @@ CONFIG_SCHED_DEBUG=y # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set CONFIG_DEBUG_MUTEXES=y +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -957,7 +985,6 @@ CONFIG_DEBUG_MUTEXES=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -971,16 +998,15 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set @@ -988,6 +1014,9 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_KMEMCHECK is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set diff --git a/arch/powerpc/configs/85xx/mpc85xx_cds_defconfig b/arch/powerpc/configs/85xx/mpc85xx_cds_defconfig index 41209e3a654..158e63e8607 100644 --- a/arch/powerpc/configs/85xx/mpc85xx_cds_defconfig +++ b/arch/powerpc/configs/85xx/mpc85xx_cds_defconfig @@ -1,14 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:18 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:17 2009 # # CONFIG_PPC64 is not set # # Processor support # -# CONFIG_6xx is not set +# CONFIG_PPC_BOOK3S_32 is not set CONFIG_PPC_85xx=y # CONFIG_PPC_8xx is not set # CONFIG_40x is not set @@ -34,15 +34,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -56,11 +57,13 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -111,7 +114,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -124,9 +126,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -139,6 +148,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -146,7 +159,7 @@ CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 # CONFIG_MODULES is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -179,6 +192,7 @@ CONFIG_MPC85xx_CDS=y # CONFIG_MPC85xx_DS is not set # CONFIG_SOCRATES is not set # CONFIG_KSI8560 is not set +# CONFIG_XES_MPC85xx is not set # CONFIG_STX_GP3 is not set # CONFIG_TQM8540 is not set # CONFIG_TQM8541 is not set @@ -227,6 +241,7 @@ CONFIG_BINFMT_ELF=y CONFIG_BINFMT_MISC=y CONFIG_MATH_EMULATION=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -245,9 +260,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -358,6 +373,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -375,7 +391,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -397,6 +417,7 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y # CONFIG_CONNECTOR is not set # CONFIG_MTD is not set CONFIG_OF_DEVICE=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -428,6 +449,7 @@ CONFIG_MISC_DEVICES=y # EEPROM support # # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y CONFIG_IDE=y @@ -502,14 +524,17 @@ CONFIG_BLK_DEV_IDEDMA=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -556,6 +581,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -575,8 +601,10 @@ CONFIG_E1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -698,6 +726,11 @@ CONFIG_GEN_RTC=y CONFIG_DEVPORT=y # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -737,22 +770,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -809,6 +827,10 @@ CONFIG_USB_ARCH_HAS_EHCI=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -828,10 +850,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -946,6 +970,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -976,6 +1001,9 @@ CONFIG_SCHED_DEBUG=y # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set CONFIG_DEBUG_MUTEXES=y +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -987,7 +1015,6 @@ CONFIG_DEBUG_MUTEXES=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -1001,16 +1028,15 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set @@ -1018,6 +1044,9 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_KMEMCHECK is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set diff --git a/arch/powerpc/configs/85xx/sbc8548_defconfig b/arch/powerpc/configs/85xx/sbc8548_defconfig index 6c36c9c7abf..2726fca1d69 100644 --- a/arch/powerpc/configs/85xx/sbc8548_defconfig +++ b/arch/powerpc/configs/85xx/sbc8548_defconfig @@ -1,14 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:19 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:18 2009 # # CONFIG_PPC64 is not set # # Processor support # -# CONFIG_6xx is not set +# CONFIG_PPC_BOOK3S_32 is not set CONFIG_PPC_85xx=y # CONFIG_PPC_8xx is not set # CONFIG_40x is not set @@ -34,15 +34,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -56,11 +57,13 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -110,7 +113,6 @@ CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -123,8 +125,15 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y CONFIG_SLAB=y # CONFIG_SLUB is not set @@ -137,6 +146,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -144,7 +157,7 @@ CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 # CONFIG_MODULES is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -177,6 +190,7 @@ CONFIG_MPC85xx=y # CONFIG_MPC85xx_DS is not set # CONFIG_SOCRATES is not set # CONFIG_KSI8560 is not set +# CONFIG_XES_MPC85xx is not set # CONFIG_STX_GP3 is not set # CONFIG_TQM8540 is not set # CONFIG_TQM8541 is not set @@ -224,6 +238,7 @@ CONFIG_BINFMT_ELF=y CONFIG_BINFMT_MISC=y CONFIG_MATH_EMULATION=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -242,9 +257,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -354,6 +369,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -371,7 +387,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -391,6 +411,7 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y # CONFIG_CONNECTOR is not set # CONFIG_MTD is not set CONFIG_OF_DEVICE=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -422,6 +443,7 @@ CONFIG_MISC_DEVICES=y # EEPROM support # # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -441,14 +463,17 @@ CONFIG_HAVE_IDE=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -495,6 +520,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -514,8 +540,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -637,6 +665,11 @@ CONFIG_GEN_RTC=y CONFIG_DEVPORT=y # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -676,22 +709,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -721,6 +739,10 @@ CONFIG_VIDEO_OUTPUT_CONTROL=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -732,10 +754,12 @@ CONFIG_VIDEO_OUTPUT_CONTROL=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -838,6 +862,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -861,22 +886,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_PPC_EARLY_DEBUG is not set diff --git a/arch/powerpc/configs/85xx/sbc8560_defconfig b/arch/powerpc/configs/85xx/sbc8560_defconfig index 4aaf1a6bdc7..b0c469823b0 100644 --- a/arch/powerpc/configs/85xx/sbc8560_defconfig +++ b/arch/powerpc/configs/85xx/sbc8560_defconfig @@ -1,14 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:20 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:19 2009 # # CONFIG_PPC64 is not set # # Processor support # -# CONFIG_6xx is not set +# CONFIG_PPC_BOOK3S_32 is not set CONFIG_PPC_85xx=y # CONFIG_PPC_8xx is not set # CONFIG_40x is not set @@ -34,15 +34,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -56,11 +57,13 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -111,7 +114,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -124,7 +126,14 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y CONFIG_SLAB=y # CONFIG_SLUB is not set @@ -137,6 +146,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -144,7 +157,7 @@ CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 # CONFIG_MODULES is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -177,6 +190,7 @@ CONFIG_MPC85xx=y # CONFIG_MPC85xx_DS is not set # CONFIG_SOCRATES is not set # CONFIG_KSI8560 is not set +# CONFIG_XES_MPC85xx is not set # CONFIG_STX_GP3 is not set # CONFIG_TQM8540 is not set # CONFIG_TQM8541 is not set @@ -224,6 +238,7 @@ CONFIG_BINFMT_ELF=y CONFIG_BINFMT_MISC=y # CONFIG_MATH_EMULATION is not set # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -242,9 +257,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -346,6 +361,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -363,7 +379,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -385,6 +405,7 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y # CONFIG_CONNECTOR is not set # CONFIG_MTD is not set CONFIG_OF_DEVICE=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -421,7 +442,6 @@ CONFIG_HAVE_IDE=y # CONFIG_MD is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -460,9 +480,11 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set CONFIG_NETDEV_1000=y CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set CONFIG_NETDEV_10000=y # @@ -551,6 +573,11 @@ CONFIG_LEGACY_PTY_COUNT=256 # CONFIG_TCG_TPM is not set # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -586,22 +613,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -690,6 +702,10 @@ CONFIG_RTC_DRV_M48T59=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -701,10 +717,12 @@ CONFIG_RTC_DRV_M48T59=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -819,6 +837,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -848,6 +867,9 @@ CONFIG_SCHED_DEBUG=y # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set CONFIG_DEBUG_MUTEXES=y +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -859,7 +881,6 @@ CONFIG_DEBUG_MUTEXES=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -873,16 +894,15 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set @@ -890,6 +910,9 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_KMEMCHECK is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set diff --git a/arch/powerpc/configs/85xx/socrates_defconfig b/arch/powerpc/configs/85xx/socrates_defconfig index 79984589db6..04c85dada84 100644 --- a/arch/powerpc/configs/85xx/socrates_defconfig +++ b/arch/powerpc/configs/85xx/socrates_defconfig @@ -1,14 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:21 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:19 2009 # # CONFIG_PPC64 is not set # # Processor support # -# CONFIG_6xx is not set +# CONFIG_PPC_BOOK3S_32 is not set CONFIG_PPC_85xx=y # CONFIG_PPC_8xx is not set # CONFIG_40x is not set @@ -34,15 +34,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -56,11 +57,13 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -109,7 +112,6 @@ CONFIG_ANON_INODES=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y # CONFIG_KALLSYMS is not set -# CONFIG_STRIP_ASM_SYMS is not set # CONFIG_HOTPLUG is not set CONFIG_PRINTK=y CONFIG_BUG=y @@ -122,9 +124,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -137,6 +146,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -149,7 +162,7 @@ CONFIG_MODULE_FORCE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -182,6 +195,7 @@ CONFIG_MPC85xx=y # CONFIG_MPC85xx_DS is not set CONFIG_SOCRATES=y # CONFIG_KSI8560 is not set +# CONFIG_XES_MPC85xx is not set # CONFIG_STX_GP3 is not set # CONFIG_TQM8540 is not set # CONFIG_TQM8541 is not set @@ -229,6 +243,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set CONFIG_MATH_EMULATION=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -247,9 +262,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -357,6 +372,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -373,6 +389,7 @@ CONFIG_CAN_BCM=y # CAN Device Drivers # # CONFIG_CAN_VCAN is not set +# CONFIG_CAN_DEV is not set # CONFIG_CAN_DEBUG_DEVICES is not set # CONFIG_IRDA is not set # CONFIG_BT is not set @@ -382,7 +399,11 @@ CONFIG_WIRELESS=y # CONFIG_WIRELESS_OLD_REGULATORY is not set # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -499,6 +520,7 @@ CONFIG_MTD_NAND_SOCRATES=y CONFIG_OF_DEVICE=y CONFIG_OF_I2C=y CONFIG_OF_SPI=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -535,7 +557,9 @@ CONFIG_MISC_DEVICES=y # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_AT25 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -558,10 +582,6 @@ CONFIG_BLK_DEV_SD=y # CONFIG_BLK_DEV_SR is not set # CONFIG_CHR_DEV_SG is not set # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -588,14 +608,17 @@ CONFIG_SCSI_WAIT_SCAN=m # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -643,6 +666,8 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set +# CONFIG_KS8851 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -662,8 +687,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -733,6 +760,7 @@ CONFIG_INPUT_TOUCHSCREEN=y # CONFIG_TOUCHSCREEN_AD7879_I2C is not set # CONFIG_TOUCHSCREEN_AD7879_SPI is not set # CONFIG_TOUCHSCREEN_AD7879 is not set +# CONFIG_TOUCHSCREEN_EETI is not set # CONFIG_TOUCHSCREEN_FUJITSU is not set # CONFIG_TOUCHSCREEN_GUNZE is not set # CONFIG_TOUCHSCREEN_ELO is not set @@ -746,6 +774,7 @@ CONFIG_INPUT_TOUCHSCREEN=y # CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set # CONFIG_TOUCHSCREEN_TOUCHIT213 is not set # CONFIG_TOUCHSCREEN_TSC2007 is not set +# CONFIG_TOUCHSCREEN_W90X900 is not set # CONFIG_INPUT_MISC is not set # @@ -862,7 +891,6 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set @@ -875,12 +903,18 @@ CONFIG_SPI_MASTER=y # SPI Master Controller Drivers # # CONFIG_SPI_BITBANG is not set +# CONFIG_SPI_MPC8xxx is not set # # SPI Protocol Masters # # CONFIG_SPI_SPIDEV is not set # CONFIG_SPI_TLE62X0 is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -938,6 +972,7 @@ CONFIG_SENSORS_LM75=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -973,24 +1008,10 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set +# CONFIG_EZX_PCAP is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y -# CONFIG_USB_DABUSB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1110,7 +1131,7 @@ CONFIG_USB_HID=y # CONFIG_HID_CHERRY is not set # CONFIG_HID_CHICONY is not set # CONFIG_HID_CYPRESS is not set -# CONFIG_DRAGONRISE_FF is not set +# CONFIG_HID_DRAGONRISE is not set # CONFIG_HID_EZKEY is not set # CONFIG_HID_KYE is not set # CONFIG_HID_GYRATION is not set @@ -1124,10 +1145,11 @@ CONFIG_USB_HID=y # CONFIG_HID_SAMSUNG is not set # CONFIG_HID_SONY is not set # CONFIG_HID_SUNPLUS is not set -# CONFIG_GREENASIA_FF is not set +# CONFIG_HID_GREENASIA is not set +# CONFIG_HID_SMARTJOYPLUS is not set # CONFIG_HID_TOPSEED is not set -# CONFIG_THRUSTMASTER_FF is not set -# CONFIG_ZEROPLUS_FF is not set +# CONFIG_HID_THRUSTMASTER is not set +# CONFIG_HID_ZEROPLUS is not set CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y @@ -1153,6 +1175,7 @@ CONFIG_USB_MON=y # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set CONFIG_USB_EHCI_HCD=y # CONFIG_USB_EHCI_ROOT_HUB_TT is not set # CONFIG_USB_EHCI_TT_NEWSCHED is not set @@ -1162,9 +1185,9 @@ CONFIG_USB_EHCI_HCD_PPC_OF=y # CONFIG_USB_ISP116X_HCD is not set # CONFIG_USB_ISP1760_HCD is not set CONFIG_USB_OHCI_HCD=y -CONFIG_USB_OHCI_HCD_PPC_OF=y CONFIG_USB_OHCI_HCD_PPC_OF_BE=y # CONFIG_USB_OHCI_HCD_PPC_OF_LE is not set +CONFIG_USB_OHCI_HCD_PPC_OF=y CONFIG_USB_OHCI_HCD_PCI=y CONFIG_USB_OHCI_BIG_ENDIAN_DESC=y CONFIG_USB_OHCI_BIG_ENDIAN_MMIO=y @@ -1284,6 +1307,7 @@ CONFIG_RTC_INTF_DEV=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # CONFIG_RTC_DRV_RX8581 is not set +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1318,6 +1342,10 @@ CONFIG_RTC_INTF_DEV=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1337,10 +1365,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1449,7 +1479,46 @@ CONFIG_MSDOS_PARTITION=y # CONFIG_KARMA_PARTITION is not set # CONFIG_EFI_PARTITION is not set # CONFIG_SYSV68_PARTITION is not set -# CONFIG_NLS is not set +CONFIG_NLS=y +CONFIG_NLS_DEFAULT="iso8859-1" +# CONFIG_NLS_CODEPAGE_437 is not set +# CONFIG_NLS_CODEPAGE_737 is not set +# CONFIG_NLS_CODEPAGE_775 is not set +# CONFIG_NLS_CODEPAGE_850 is not set +# CONFIG_NLS_CODEPAGE_852 is not set +# CONFIG_NLS_CODEPAGE_855 is not set +# CONFIG_NLS_CODEPAGE_857 is not set +# CONFIG_NLS_CODEPAGE_860 is not set +# CONFIG_NLS_CODEPAGE_861 is not set +# CONFIG_NLS_CODEPAGE_862 is not set +# CONFIG_NLS_CODEPAGE_863 is not set +# CONFIG_NLS_CODEPAGE_864 is not set +# CONFIG_NLS_CODEPAGE_865 is not set +# CONFIG_NLS_CODEPAGE_866 is not set +# CONFIG_NLS_CODEPAGE_869 is not set +# CONFIG_NLS_CODEPAGE_936 is not set +# CONFIG_NLS_CODEPAGE_950 is not set +# CONFIG_NLS_CODEPAGE_932 is not set +# CONFIG_NLS_CODEPAGE_949 is not set +# CONFIG_NLS_CODEPAGE_874 is not set +# CONFIG_NLS_ISO8859_8 is not set +# CONFIG_NLS_CODEPAGE_1250 is not set +# CONFIG_NLS_CODEPAGE_1251 is not set +# CONFIG_NLS_ASCII is not set +# CONFIG_NLS_ISO8859_1 is not set +# CONFIG_NLS_ISO8859_2 is not set +# CONFIG_NLS_ISO8859_3 is not set +# CONFIG_NLS_ISO8859_4 is not set +# CONFIG_NLS_ISO8859_5 is not set +# CONFIG_NLS_ISO8859_6 is not set +# CONFIG_NLS_ISO8859_7 is not set +# CONFIG_NLS_ISO8859_9 is not set +# CONFIG_NLS_ISO8859_13 is not set +# CONFIG_NLS_ISO8859_14 is not set +# CONFIG_NLS_ISO8859_15 is not set +# CONFIG_NLS_KOI8_R is not set +# CONFIG_NLS_KOI8_U is not set +# CONFIG_NLS_UTF8 is not set # CONFIG_DLM is not set # CONFIG_BINARY_PRINTF is not set @@ -1473,6 +1542,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1498,22 +1568,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_PPC_EARLY_DEBUG is not set diff --git a/arch/powerpc/configs/85xx/stx_gp3_defconfig b/arch/powerpc/configs/85xx/stx_gp3_defconfig index bd1bfcddbd0..e7e81d6769f 100644 --- a/arch/powerpc/configs/85xx/stx_gp3_defconfig +++ b/arch/powerpc/configs/85xx/stx_gp3_defconfig @@ -1,14 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:22 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:20 2009 # # CONFIG_PPC64 is not set # # Processor support # -# CONFIG_6xx is not set +# CONFIG_PPC_BOOK3S_32 is not set CONFIG_PPC_85xx=y # CONFIG_PPC_8xx is not set # CONFIG_40x is not set @@ -34,15 +34,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_GPIO=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set @@ -57,11 +58,13 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -112,7 +115,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -125,9 +127,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -142,6 +151,10 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_CLK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -153,7 +166,7 @@ CONFIG_MODULES=y CONFIG_MODVERSIONS=y # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -186,6 +199,7 @@ CONFIG_MPC85xx=y # CONFIG_MPC85xx_DS is not set # CONFIG_SOCRATES is not set # CONFIG_KSI8560 is not set +# CONFIG_XES_MPC85xx is not set CONFIG_STX_GP3=y # CONFIG_TQM8540 is not set # CONFIG_TQM8541 is not set @@ -234,6 +248,7 @@ CONFIG_BINFMT_ELF=y CONFIG_BINFMT_MISC=m CONFIG_MATH_EMULATION=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -252,9 +267,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -425,6 +440,7 @@ CONFIG_IP_NF_FILTER=m # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -442,7 +458,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -466,6 +486,7 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y CONFIG_OF_DEVICE=y CONFIG_OF_GPIO=y CONFIG_OF_I2C=m +CONFIG_OF_MDIO=y CONFIG_PARPORT=m CONFIG_PARPORT_PC=m # CONFIG_PARPORT_PC_FIFO is not set @@ -507,7 +528,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y CONFIG_IDE=y @@ -581,10 +604,6 @@ CONFIG_BLK_DEV_SR=m # CONFIG_BLK_DEV_SR_VENDOR is not set CONFIG_CHR_DEV_SG=m # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# CONFIG_SCSI_MULTI_LUN=y CONFIG_SCSI_CONSTANTS=y # CONFIG_SCSI_LOGGING is not set @@ -602,6 +621,7 @@ CONFIG_SCSI_WAIT_SCAN=m CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set # CONFIG_SCSI_CXGB3_ISCSI is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -610,6 +630,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -631,7 +652,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_INIA100 is not set # CONFIG_SCSI_PPA is not set # CONFIG_SCSI_IMM is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_QLOGIC_1280 is not set @@ -654,14 +674,17 @@ CONFIG_SCSI_LOWLEVEL=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -708,6 +731,7 @@ CONFIG_NET_ETHERNET=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_NET_POCKET is not set # CONFIG_ATL2 is not set # CONFIG_FS_ENET is not set @@ -729,8 +753,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -802,12 +828,13 @@ CONFIG_INPUT_EVDEV=m # CONFIG_INPUT_KEYBOARD=y CONFIG_KEYBOARD_ATKBD=y -# CONFIG_KEYBOARD_SUNKBD is not set # CONFIG_KEYBOARD_LKKBD is not set -# CONFIG_KEYBOARD_XTKBD is not set +# CONFIG_KEYBOARD_GPIO is not set +# CONFIG_KEYBOARD_MATRIX is not set # CONFIG_KEYBOARD_NEWTON is not set # CONFIG_KEYBOARD_STOWAWAY is not set -# CONFIG_KEYBOARD_GPIO is not set +# CONFIG_KEYBOARD_SUNKBD is not set +# CONFIG_KEYBOARD_XTKBD is not set CONFIG_INPUT_MOUSE=y CONFIG_MOUSE_PS2=y CONFIG_MOUSE_PS2_ALPS=y @@ -821,6 +848,7 @@ CONFIG_MOUSE_PS2_TRACKPOINT=y # CONFIG_MOUSE_BCM5974 is not set # CONFIG_MOUSE_VSXXXAA is not set # CONFIG_MOUSE_GPIO is not set +# CONFIG_MOUSE_SYNAPTICS_I2C is not set # CONFIG_INPUT_JOYSTICK is not set # CONFIG_INPUT_TABLET is not set # CONFIG_INPUT_TOUCHSCREEN is not set @@ -911,6 +939,7 @@ CONFIG_I2C_ALGOBIT=m # I2C system bus drivers (mostly embedded / system-on-chip) # # CONFIG_I2C_CPM is not set +# CONFIG_I2C_DESIGNWARE is not set # CONFIG_I2C_GPIO is not set # CONFIG_I2C_MPC is not set # CONFIG_I2C_OCORES is not set @@ -941,13 +970,17 @@ CONFIG_I2C_ALGOBIT=m # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_ARCH_REQUIRE_GPIOLIB=y CONFIG_GPIOLIB=y @@ -1027,6 +1060,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -1060,23 +1094,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1143,6 +1163,10 @@ CONFIG_USB_ARCH_HAS_EHCI=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1162,10 +1186,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1316,6 +1342,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1346,6 +1373,9 @@ CONFIG_SCHED_DEBUG=y # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -1358,7 +1388,6 @@ CONFIG_SCHED_DEBUG=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -1372,16 +1401,15 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set @@ -1389,6 +1417,9 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_KMEMCHECK is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set diff --git a/arch/powerpc/configs/85xx/tqm8540_defconfig b/arch/powerpc/configs/85xx/tqm8540_defconfig index 767600145fb..2c407523aad 100644 --- a/arch/powerpc/configs/85xx/tqm8540_defconfig +++ b/arch/powerpc/configs/85xx/tqm8540_defconfig @@ -1,14 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:23 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:21 2009 # # CONFIG_PPC64 is not set # # Processor support # -# CONFIG_6xx is not set +# CONFIG_PPC_BOOK3S_32 is not set CONFIG_PPC_85xx=y # CONFIG_PPC_8xx is not set # CONFIG_40x is not set @@ -34,15 +34,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -56,11 +57,13 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -109,7 +112,6 @@ CONFIG_ANON_INODES=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y # CONFIG_KALLSYMS is not set -# CONFIG_STRIP_ASM_SYMS is not set # CONFIG_HOTPLUG is not set CONFIG_PRINTK=y CONFIG_BUG=y @@ -122,9 +124,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -137,6 +146,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -144,7 +157,7 @@ CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 # CONFIG_MODULES is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -177,6 +190,7 @@ CONFIG_MPC85xx=y # CONFIG_MPC85xx_DS is not set # CONFIG_SOCRATES is not set # CONFIG_KSI8560 is not set +# CONFIG_XES_MPC85xx is not set # CONFIG_STX_GP3 is not set CONFIG_TQM8540=y # CONFIG_TQM8541 is not set @@ -225,6 +239,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set CONFIG_MATH_EMULATION=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -243,9 +258,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -353,6 +368,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -370,7 +386,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -471,6 +491,7 @@ CONFIG_MTD_CFI_UTIL=y # CONFIG_MTD_UBI is not set CONFIG_OF_DEVICE=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -505,7 +526,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y CONFIG_IDE=y @@ -580,14 +603,17 @@ CONFIG_BLK_DEV_IDEDMA=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -650,6 +676,7 @@ CONFIG_E100=y # CONFIG_SMSC9420 is not set # CONFIG_SUNDANCE is not set # CONFIG_TLAN is not set +# CONFIG_KS8842 is not set # CONFIG_VIA_RHINE is not set # CONFIG_SC92031 is not set # CONFIG_ATL2 is not set @@ -671,8 +698,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -850,13 +879,17 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -911,6 +944,7 @@ CONFIG_SENSORS_LM75=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -945,23 +979,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1018,6 +1038,10 @@ CONFIG_USB_ARCH_HAS_EHCI=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1037,10 +1061,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1167,6 +1193,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1192,22 +1219,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_PPC_EARLY_DEBUG is not set diff --git a/arch/powerpc/configs/85xx/tqm8541_defconfig b/arch/powerpc/configs/85xx/tqm8541_defconfig index 52fafc006dd..845731dc51c 100644 --- a/arch/powerpc/configs/85xx/tqm8541_defconfig +++ b/arch/powerpc/configs/85xx/tqm8541_defconfig @@ -1,14 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:23 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:22 2009 # # CONFIG_PPC64 is not set # # Processor support # -# CONFIG_6xx is not set +# CONFIG_PPC_BOOK3S_32 is not set CONFIG_PPC_85xx=y # CONFIG_PPC_8xx is not set # CONFIG_40x is not set @@ -34,15 +34,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_GPIO=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set @@ -57,11 +58,13 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -110,7 +113,6 @@ CONFIG_ANON_INODES=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y # CONFIG_KALLSYMS is not set -# CONFIG_STRIP_ASM_SYMS is not set # CONFIG_HOTPLUG is not set CONFIG_PRINTK=y CONFIG_BUG=y @@ -123,9 +125,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -139,6 +148,10 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_CLK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -146,7 +159,7 @@ CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 # CONFIG_MODULES is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -179,6 +192,7 @@ CONFIG_MPC85xx=y # CONFIG_MPC85xx_DS is not set # CONFIG_SOCRATES is not set # CONFIG_KSI8560 is not set +# CONFIG_XES_MPC85xx is not set # CONFIG_STX_GP3 is not set # CONFIG_TQM8540 is not set CONFIG_TQM8541=y @@ -228,6 +242,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set CONFIG_MATH_EMULATION=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -246,9 +261,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -356,6 +371,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -373,7 +389,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -475,6 +495,7 @@ CONFIG_MTD_CFI_UTIL=y CONFIG_OF_DEVICE=y CONFIG_OF_GPIO=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -509,7 +530,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y CONFIG_IDE=y @@ -584,14 +607,17 @@ CONFIG_BLK_DEV_IDEDMA=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -654,6 +680,7 @@ CONFIG_E100=y # CONFIG_SMSC9420 is not set # CONFIG_SUNDANCE is not set # CONFIG_TLAN is not set +# CONFIG_KS8842 is not set # CONFIG_VIA_RHINE is not set # CONFIG_SC92031 is not set # CONFIG_ATL2 is not set @@ -676,8 +703,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -831,6 +860,7 @@ CONFIG_I2C_HELPER_AUTO=y # I2C system bus drivers (mostly embedded / system-on-chip) # # CONFIG_I2C_CPM is not set +# CONFIG_I2C_DESIGNWARE is not set # CONFIG_I2C_GPIO is not set CONFIG_I2C_MPC=y # CONFIG_I2C_OCORES is not set @@ -859,13 +889,17 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_ARCH_REQUIRE_GPIOLIB=y CONFIG_GPIOLIB=y @@ -944,6 +978,7 @@ CONFIG_SENSORS_LM75=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -979,23 +1014,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1052,6 +1073,10 @@ CONFIG_USB_ARCH_HAS_EHCI=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1071,10 +1096,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1201,6 +1228,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1226,22 +1254,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_PPC_EARLY_DEBUG is not set diff --git a/arch/powerpc/configs/85xx/tqm8548_defconfig b/arch/powerpc/configs/85xx/tqm8548_defconfig index 8b4faae7a9a..4f228a90527 100644 --- a/arch/powerpc/configs/85xx/tqm8548_defconfig +++ b/arch/powerpc/configs/85xx/tqm8548_defconfig @@ -1,14 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:24 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:23 2009 # # CONFIG_PPC64 is not set # # Processor support # -# CONFIG_6xx is not set +# CONFIG_PPC_BOOK3S_32 is not set CONFIG_PPC_85xx=y # CONFIG_PPC_8xx is not set # CONFIG_40x is not set @@ -34,15 +34,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -56,11 +57,13 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -111,7 +114,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -124,9 +126,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -140,6 +149,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -152,7 +165,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -185,6 +198,7 @@ CONFIG_MPC85xx=y # CONFIG_MPC85xx_DS is not set # CONFIG_SOCRATES is not set # CONFIG_KSI8560 is not set +# CONFIG_XES_MPC85xx is not set # CONFIG_STX_GP3 is not set # CONFIG_TQM8540 is not set # CONFIG_TQM8541 is not set @@ -234,6 +248,7 @@ CONFIG_BINFMT_ELF=y CONFIG_BINFMT_MISC=y CONFIG_MATH_EMULATION=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -252,9 +267,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -281,6 +296,8 @@ CONFIG_PCI_DOMAINS=y CONFIG_PCI_SYSCALL=y CONFIG_PCIEPORTBUS=y CONFIG_PCIEAER=y +# CONFIG_PCIE_ECRC is not set +# CONFIG_PCIEAER_INJECT is not set # CONFIG_PCIEASPM is not set CONFIG_ARCH_SUPPORTS_MSI=y # CONFIG_PCI_MSI is not set @@ -368,6 +385,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -497,6 +515,7 @@ CONFIG_MTD_NAND_FSL_UPM=y # CONFIG_MTD_UBI is not set CONFIG_OF_DEVICE=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -531,7 +550,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -551,14 +572,17 @@ CONFIG_HAVE_IDE=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -605,6 +629,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -624,8 +649,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -801,13 +828,17 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -862,6 +893,7 @@ CONFIG_SENSORS_LM75=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -896,23 +928,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -977,6 +995,7 @@ CONFIG_RTC_DRV_DS1307=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # CONFIG_RTC_DRV_RX8581 is not set +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1004,6 +1023,10 @@ CONFIG_RTC_DRV_DS1307=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1015,10 +1038,12 @@ CONFIG_RTC_DRV_DS1307=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1145,6 +1170,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1175,6 +1201,9 @@ CONFIG_SCHED_DEBUG=y # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set CONFIG_DEBUG_MUTEXES=y +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -1187,7 +1216,6 @@ CONFIG_DEBUG_MUTEXES=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -1201,16 +1229,15 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set @@ -1218,6 +1245,9 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_KMEMCHECK is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set diff --git a/arch/powerpc/configs/85xx/tqm8555_defconfig b/arch/powerpc/configs/85xx/tqm8555_defconfig index 170360934ce..9196724bebc 100644 --- a/arch/powerpc/configs/85xx/tqm8555_defconfig +++ b/arch/powerpc/configs/85xx/tqm8555_defconfig @@ -1,14 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:25 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:24 2009 # # CONFIG_PPC64 is not set # # Processor support # -# CONFIG_6xx is not set +# CONFIG_PPC_BOOK3S_32 is not set CONFIG_PPC_85xx=y # CONFIG_PPC_8xx is not set # CONFIG_40x is not set @@ -34,15 +34,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_GPIO=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set @@ -57,11 +58,13 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -110,7 +113,6 @@ CONFIG_ANON_INODES=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y # CONFIG_KALLSYMS is not set -# CONFIG_STRIP_ASM_SYMS is not set # CONFIG_HOTPLUG is not set CONFIG_PRINTK=y CONFIG_BUG=y @@ -123,9 +125,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -139,6 +148,10 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_CLK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -146,7 +159,7 @@ CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 # CONFIG_MODULES is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -179,6 +192,7 @@ CONFIG_MPC85xx=y # CONFIG_MPC85xx_DS is not set # CONFIG_SOCRATES is not set # CONFIG_KSI8560 is not set +# CONFIG_XES_MPC85xx is not set # CONFIG_STX_GP3 is not set # CONFIG_TQM8540 is not set # CONFIG_TQM8541 is not set @@ -228,6 +242,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set CONFIG_MATH_EMULATION=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -246,9 +261,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -356,6 +371,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -373,7 +389,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -475,6 +495,7 @@ CONFIG_MTD_CFI_UTIL=y CONFIG_OF_DEVICE=y CONFIG_OF_GPIO=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -509,7 +530,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y CONFIG_IDE=y @@ -584,14 +607,17 @@ CONFIG_BLK_DEV_IDEDMA=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -654,6 +680,7 @@ CONFIG_E100=y # CONFIG_SMSC9420 is not set # CONFIG_SUNDANCE is not set # CONFIG_TLAN is not set +# CONFIG_KS8842 is not set # CONFIG_VIA_RHINE is not set # CONFIG_SC92031 is not set # CONFIG_ATL2 is not set @@ -676,8 +703,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -831,6 +860,7 @@ CONFIG_I2C_HELPER_AUTO=y # I2C system bus drivers (mostly embedded / system-on-chip) # # CONFIG_I2C_CPM is not set +# CONFIG_I2C_DESIGNWARE is not set # CONFIG_I2C_GPIO is not set CONFIG_I2C_MPC=y # CONFIG_I2C_OCORES is not set @@ -859,13 +889,17 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_ARCH_REQUIRE_GPIOLIB=y CONFIG_GPIOLIB=y @@ -944,6 +978,7 @@ CONFIG_SENSORS_LM75=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -979,23 +1014,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1052,6 +1073,10 @@ CONFIG_USB_ARCH_HAS_EHCI=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1071,10 +1096,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1201,6 +1228,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1226,22 +1254,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_PPC_EARLY_DEBUG is not set diff --git a/arch/powerpc/configs/85xx/tqm8560_defconfig b/arch/powerpc/configs/85xx/tqm8560_defconfig index f41cc2444d4..2e49a6e9faf 100644 --- a/arch/powerpc/configs/85xx/tqm8560_defconfig +++ b/arch/powerpc/configs/85xx/tqm8560_defconfig @@ -1,14 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:26 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:25 2009 # # CONFIG_PPC64 is not set # # Processor support # -# CONFIG_6xx is not set +# CONFIG_PPC_BOOK3S_32 is not set CONFIG_PPC_85xx=y # CONFIG_PPC_8xx is not set # CONFIG_40x is not set @@ -34,15 +34,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_GPIO=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set @@ -57,11 +58,13 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -110,7 +113,6 @@ CONFIG_ANON_INODES=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y # CONFIG_KALLSYMS is not set -# CONFIG_STRIP_ASM_SYMS is not set # CONFIG_HOTPLUG is not set CONFIG_PRINTK=y CONFIG_BUG=y @@ -123,9 +125,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -139,6 +148,10 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_CLK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -146,7 +159,7 @@ CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 # CONFIG_MODULES is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -179,6 +192,7 @@ CONFIG_MPC85xx=y # CONFIG_MPC85xx_DS is not set # CONFIG_SOCRATES is not set # CONFIG_KSI8560 is not set +# CONFIG_XES_MPC85xx is not set # CONFIG_STX_GP3 is not set # CONFIG_TQM8540 is not set # CONFIG_TQM8541 is not set @@ -228,6 +242,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set CONFIG_MATH_EMULATION=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -246,9 +261,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -356,6 +371,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -373,7 +389,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -475,6 +495,7 @@ CONFIG_MTD_CFI_UTIL=y CONFIG_OF_DEVICE=y CONFIG_OF_GPIO=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -509,7 +530,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y CONFIG_IDE=y @@ -584,14 +607,17 @@ CONFIG_BLK_DEV_IDEDMA=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -654,6 +680,7 @@ CONFIG_E100=y # CONFIG_SMSC9420 is not set # CONFIG_SUNDANCE is not set # CONFIG_TLAN is not set +# CONFIG_KS8842 is not set # CONFIG_VIA_RHINE is not set # CONFIG_SC92031 is not set # CONFIG_ATL2 is not set @@ -676,8 +703,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -831,6 +860,7 @@ CONFIG_I2C_HELPER_AUTO=y # I2C system bus drivers (mostly embedded / system-on-chip) # # CONFIG_I2C_CPM is not set +# CONFIG_I2C_DESIGNWARE is not set # CONFIG_I2C_GPIO is not set CONFIG_I2C_MPC=y # CONFIG_I2C_OCORES is not set @@ -859,13 +889,17 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_ARCH_REQUIRE_GPIOLIB=y CONFIG_GPIOLIB=y @@ -944,6 +978,7 @@ CONFIG_SENSORS_LM75=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -979,23 +1014,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1052,6 +1073,10 @@ CONFIG_USB_ARCH_HAS_EHCI=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1071,10 +1096,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1201,6 +1228,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1226,22 +1254,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_PPC_EARLY_DEBUG is not set diff --git a/arch/powerpc/configs/85xx/xes_mpc85xx_defconfig b/arch/powerpc/configs/85xx/xes_mpc85xx_defconfig index 2552cbefba6..1025da2bf06 100644 --- a/arch/powerpc/configs/85xx/xes_mpc85xx_defconfig +++ b/arch/powerpc/configs/85xx/xes_mpc85xx_defconfig @@ -1,14 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc6 -# Thu Jun 11 11:25:17 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:25 2009 # # CONFIG_PPC64 is not set # # Processor support # -# CONFIG_6xx is not set +# CONFIG_PPC_BOOK3S_32 is not set CONFIG_PPC_85xx=y # CONFIG_PPC_8xx is not set # CONFIG_40x is not set @@ -35,15 +35,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_GPIO=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set @@ -64,6 +65,7 @@ CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -114,7 +116,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y CONFIG_KALLSYMS_EXTRA_PASS=y -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -127,9 +128,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -144,6 +152,10 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_USE_GENERIC_SMP_HELPERS=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -157,7 +169,7 @@ CONFIG_MODVERSIONS=y # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_STOP_MACHINE=y CONFIG_BLOCK=y -CONFIG_LBD=y +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -239,6 +251,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set CONFIG_MATH_EMULATION=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -258,9 +271,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -287,6 +300,8 @@ CONFIG_PCI_DOMAINS=y CONFIG_PCI_SYSCALL=y CONFIG_PCIEPORTBUS=y CONFIG_PCIEAER=y +# CONFIG_PCIE_ECRC is not set +# CONFIG_PCIEAER_INJECT is not set # CONFIG_PCIEASPM is not set CONFIG_ARCH_SUPPORTS_MSI=y CONFIG_PCI_MSI=y @@ -404,6 +419,7 @@ CONFIG_IPV6_NDISC_NODETYPE=y # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -540,6 +556,7 @@ CONFIG_MTD_NAND_FSL_UPM=y CONFIG_OF_DEVICE=y CONFIG_OF_GPIO=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -575,7 +592,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -599,10 +618,6 @@ CONFIG_BLK_DEV_SR=y # CONFIG_BLK_DEV_SR_VENDOR is not set CONFIG_CHR_DEV_SG=y # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# CONFIG_SCSI_MULTI_LUN=y # CONFIG_SCSI_CONSTANTS is not set CONFIG_SCSI_LOGGING=y @@ -619,6 +634,7 @@ CONFIG_SCSI_WAIT_SCAN=m # CONFIG_SCSI_SRP_ATTRS is not set CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -627,6 +643,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -646,7 +663,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set @@ -730,14 +746,17 @@ CONFIG_PATA_ALI=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y CONFIG_DUMMY=y # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -784,6 +803,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -803,8 +823,10 @@ CONFIG_E1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -986,13 +1008,17 @@ CONFIG_I2C_MPC=y # CONFIG_DS1682 is not set # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_ARCH_REQUIRE_GPIOLIB=y CONFIG_GPIOLIB=y @@ -1072,6 +1098,7 @@ CONFIG_SENSORS_LM90=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -1126,23 +1153,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -# CONFIG_DAB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1187,7 +1200,7 @@ CONFIG_USB_HID=y # CONFIG_HID_CHERRY is not set # CONFIG_HID_CHICONY is not set # CONFIG_HID_CYPRESS is not set -# CONFIG_DRAGONRISE_FF is not set +# CONFIG_HID_DRAGONRISE is not set # CONFIG_HID_EZKEY is not set # CONFIG_HID_KYE is not set # CONFIG_HID_GYRATION is not set @@ -1201,10 +1214,11 @@ CONFIG_USB_HID=y # CONFIG_HID_SAMSUNG is not set # CONFIG_HID_SONY is not set # CONFIG_HID_SUNPLUS is not set -# CONFIG_GREENASIA_FF is not set +# CONFIG_HID_GREENASIA is not set +# CONFIG_HID_SMARTJOYPLUS is not set # CONFIG_HID_TOPSEED is not set -# CONFIG_THRUSTMASTER_FF is not set -# CONFIG_ZEROPLUS_FF is not set +# CONFIG_HID_THRUSTMASTER is not set +# CONFIG_HID_ZEROPLUS is not set CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y @@ -1230,6 +1244,7 @@ CONFIG_USB_MON=y # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set # CONFIG_USB_EHCI_HCD is not set # CONFIG_USB_OXU210HP_HCD is not set # CONFIG_USB_ISP116X_HCD is not set @@ -1325,7 +1340,7 @@ CONFIG_LEDS_CLASS=y CONFIG_LEDS_GPIO=y CONFIG_LEDS_GPIO_PLATFORM=y CONFIG_LEDS_GPIO_OF=y -# CONFIG_LEDS_LP5521 is not set +# CONFIG_LEDS_LP3944 is not set CONFIG_LEDS_PCA955X=y # CONFIG_LEDS_BD2802 is not set @@ -1352,8 +1367,6 @@ CONFIG_EDAC=y # CONFIG_EDAC_DEBUG is not set CONFIG_EDAC_MM_EDAC=y CONFIG_EDAC_MPC85XX=y -# CONFIG_EDAC_AMD8131 is not set -# CONFIG_EDAC_AMD8111 is not set CONFIG_RTC_LIB=y CONFIG_RTC_CLASS=y CONFIG_RTC_HCTOSYS=y @@ -1385,6 +1398,7 @@ CONFIG_RTC_DRV_DS1307=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # CONFIG_RTC_DRV_RX8581 is not set +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1425,6 +1439,10 @@ CONFIG_NET_DMA=y # CONFIG_DMATEST is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1444,11 +1462,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1629,6 +1648,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1659,6 +1679,9 @@ CONFIG_SCHED_DEBUG=y # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -1671,7 +1694,6 @@ CONFIG_SCHED_DEBUG=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -1685,16 +1707,15 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set @@ -1702,6 +1723,9 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_KMEMCHECK is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set diff --git a/arch/powerpc/configs/86xx/gef_ppc9a_defconfig b/arch/powerpc/configs/86xx/gef_ppc9a_defconfig index d8354d993b2..527ad1a5e80 100644 --- a/arch/powerpc/configs/86xx/gef_ppc9a_defconfig +++ b/arch/powerpc/configs/86xx/gef_ppc9a_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30 -# Thu Jul 2 13:55:24 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:31 2009 # # CONFIG_PPC64 is not set @@ -39,6 +39,7 @@ CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_GENERIC_LOCKBREAK=y @@ -1322,6 +1323,8 @@ CONFIG_USB_EHCI_HCD=y # CONFIG_USB_ISP116X_HCD is not set # CONFIG_USB_ISP1760_HCD is not set CONFIG_USB_OHCI_HCD=y +# CONFIG_USB_OHCI_HCD_PPC_OF_BE is not set +# CONFIG_USB_OHCI_HCD_PPC_OF_LE is not set # CONFIG_USB_OHCI_HCD_PPC_OF is not set # CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set # CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set diff --git a/arch/powerpc/configs/86xx/gef_sbc310_defconfig b/arch/powerpc/configs/86xx/gef_sbc310_defconfig index f2362e5bf06..cd338d493be 100644 --- a/arch/powerpc/configs/86xx/gef_sbc310_defconfig +++ b/arch/powerpc/configs/86xx/gef_sbc310_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30 -# Thu Jul 2 14:10:12 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:29 2009 # # CONFIG_PPC64 is not set @@ -39,6 +39,7 @@ CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_GENERIC_LOCKBREAK=y @@ -1267,6 +1268,8 @@ CONFIG_USB_EHCI_HCD=y # CONFIG_USB_ISP116X_HCD is not set # CONFIG_USB_ISP1760_HCD is not set CONFIG_USB_OHCI_HCD=y +# CONFIG_USB_OHCI_HCD_PPC_OF_BE is not set +# CONFIG_USB_OHCI_HCD_PPC_OF_LE is not set # CONFIG_USB_OHCI_HCD_PPC_OF is not set # CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set # CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set diff --git a/arch/powerpc/configs/86xx/gef_sbc610_defconfig b/arch/powerpc/configs/86xx/gef_sbc610_defconfig index c6a7fc82b69..ba47883f4aa 100644 --- a/arch/powerpc/configs/86xx/gef_sbc610_defconfig +++ b/arch/powerpc/configs/86xx/gef_sbc610_defconfig @@ -1,26 +1,28 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:30 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:30 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_PHYS_64BIT is not set CONFIG_ALTIVEC=y CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y CONFIG_SMP=y CONFIG_NR_CPUS=2 CONFIG_PPC32=y @@ -32,16 +34,17 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_GENERIC_LOCKBREAK=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_GPIO=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set @@ -56,11 +59,13 @@ CONFIG_PPC_UDBG_16550=y CONFIG_GENERIC_TBSYNC=y CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -114,7 +119,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -127,8 +131,15 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y CONFIG_SLAB=y # CONFIG_SLUB is not set @@ -143,6 +154,10 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_USE_GENERIC_SMP_HELPERS=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -156,7 +171,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_STOP_MACHINE=y CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -235,6 +250,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set CONFIG_BINFMT_MISC=m # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -256,9 +272,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -285,6 +301,8 @@ CONFIG_PCI_DOMAINS=y CONFIG_PCI_SYSCALL=y CONFIG_PCIEPORTBUS=y CONFIG_PCIEAER=y +# CONFIG_PCIE_ECRC is not set +# CONFIG_PCIEAER_INJECT is not set # CONFIG_PCIEASPM is not set CONFIG_ARCH_SUPPORTS_MSI=y # CONFIG_PCI_MSI is not set @@ -510,6 +528,7 @@ CONFIG_LLC=m # CONFIG_ECONET is not set CONFIG_WAN_ROUTER=m # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set CONFIG_NET_SCHED=y # @@ -566,7 +585,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -678,6 +701,7 @@ CONFIG_MTD_PHYSMAP_OF=y CONFIG_OF_DEVICE=y CONFIG_OF_GPIO=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -713,7 +737,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -737,10 +763,6 @@ CONFIG_BLK_DEV_SR=y # CONFIG_BLK_DEV_SR_VENDOR is not set # CONFIG_CHR_DEV_SG is not set # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -757,6 +779,7 @@ CONFIG_SCSI_WAIT_SCAN=m # CONFIG_SCSI_SRP_ATTRS is not set CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -765,6 +788,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -784,7 +808,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set @@ -868,14 +891,17 @@ CONFIG_SATA_SIL=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y CONFIG_DUMMY=m CONFIG_BONDING=m # CONFIG_MACVLAN is not set @@ -922,6 +948,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -941,8 +968,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -1149,13 +1178,17 @@ CONFIG_DS1682=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_ARCH_REQUIRE_GPIOLIB=y CONFIG_GPIOLIB=y @@ -1235,6 +1268,7 @@ CONFIG_SENSORS_LM92=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -1290,24 +1324,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y -# CONFIG_USB_DABUSB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1352,7 +1371,7 @@ CONFIG_HID_BELKIN=y CONFIG_HID_CHERRY=y CONFIG_HID_CHICONY=y CONFIG_HID_CYPRESS=y -# CONFIG_DRAGONRISE_FF is not set +# CONFIG_HID_DRAGONRISE is not set CONFIG_HID_EZKEY=y # CONFIG_HID_KYE is not set CONFIG_HID_GYRATION=y @@ -1369,10 +1388,11 @@ CONFIG_HID_PETALYNX=y CONFIG_HID_SAMSUNG=y CONFIG_HID_SONY=y CONFIG_HID_SUNPLUS=y -# CONFIG_GREENASIA_FF is not set +# CONFIG_HID_GREENASIA is not set +# CONFIG_HID_SMARTJOYPLUS is not set # CONFIG_HID_TOPSEED is not set -CONFIG_THRUSTMASTER_FF=m -CONFIG_ZEROPLUS_FF=m +# CONFIG_HID_THRUSTMASTER is not set +# CONFIG_HID_ZEROPLUS is not set CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y @@ -1398,6 +1418,7 @@ CONFIG_USB=y # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set CONFIG_USB_EHCI_HCD=y # CONFIG_USB_EHCI_ROOT_HUB_TT is not set # CONFIG_USB_EHCI_TT_NEWSCHED is not set @@ -1407,6 +1428,8 @@ CONFIG_USB_EHCI_HCD=y # CONFIG_USB_ISP116X_HCD is not set # CONFIG_USB_ISP1760_HCD is not set CONFIG_USB_OHCI_HCD=y +# CONFIG_USB_OHCI_HCD_PPC_OF_BE is not set +# CONFIG_USB_OHCI_HCD_PPC_OF_LE is not set # CONFIG_USB_OHCI_HCD_PPC_OF is not set # CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set # CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set @@ -1527,6 +1550,7 @@ CONFIG_RTC_INTF_DEV=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set CONFIG_RTC_DRV_RX8581=y +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1554,6 +1578,10 @@ CONFIG_RTC_DRV_RX8581=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1575,10 +1603,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set CONFIG_FS_POSIX_ACL=y -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1645,6 +1675,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set CONFIG_LOCKD=y @@ -1734,6 +1765,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1759,10 +1791,14 @@ CONFIG_SCHED_DEBUG=y # CONFIG_TIMER_STATS is not set # CONFIG_DEBUG_OBJECTS is not set # CONFIG_DEBUG_SLAB is not set +CONFIG_DEBUG_PREEMPT=y # CONFIG_DEBUG_RT_MUTEXES is not set # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -1774,7 +1810,6 @@ CONFIG_DEBUG_INFO=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -1788,17 +1823,16 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_PREEMPT_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set @@ -1806,6 +1840,9 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_KMEMCHECK is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set @@ -1829,7 +1866,6 @@ CONFIG_SECURITY_NETWORK=y # CONFIG_SECURITY_PATH is not set # CONFIG_SECURITY_FILE_CAPABILITIES is not set # CONFIG_SECURITY_ROOTPLUG is not set -CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR=0 # CONFIG_SECURITY_TOMOYO is not set CONFIG_CRYPTO=y diff --git a/arch/powerpc/configs/86xx/mpc8610_hpcd_defconfig b/arch/powerpc/configs/86xx/mpc8610_hpcd_defconfig index cfd2efcc6bc..a61f183f718 100644 --- a/arch/powerpc/configs/86xx/mpc8610_hpcd_defconfig +++ b/arch/powerpc/configs/86xx/mpc8610_hpcd_defconfig @@ -1,26 +1,28 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:28 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:27 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_PHYS_64BIT is not set CONFIG_ALTIVEC=y CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -31,15 +33,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -53,11 +56,13 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -109,7 +114,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set CONFIG_KALLSYMS_EXTRA_PASS=y -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -122,9 +126,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -138,6 +149,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -150,7 +165,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -230,6 +245,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set # CONFIG_BINFMT_MISC is not set # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -250,9 +266,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -279,6 +295,8 @@ CONFIG_PCI_DOMAINS=y CONFIG_PCI_SYSCALL=y CONFIG_PCIEPORTBUS=y CONFIG_PCIEAER=y +# CONFIG_PCIE_ECRC is not set +# CONFIG_PCIEAER_INJECT is not set # CONFIG_PCIEASPM is not set CONFIG_ARCH_SUPPORTS_MSI=y # CONFIG_PCI_MSI is not set @@ -381,6 +399,7 @@ CONFIG_IPV6_NDISC_NODETYPE=y # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -398,7 +417,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -549,7 +572,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y CONFIG_IDE=y @@ -620,10 +645,6 @@ CONFIG_BLK_DEV_SD=y # CONFIG_BLK_DEV_SR is not set CONFIG_CHR_DEV_SG=y # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -640,6 +661,7 @@ CONFIG_SCSI_WAIT_SCAN=m # CONFIG_SCSI_SRP_ATTRS is not set CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -648,6 +670,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -667,7 +690,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set @@ -751,14 +773,17 @@ CONFIG_PATA_ALI=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y CONFIG_DUMMY=y # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -792,6 +817,7 @@ CONFIG_ULI526X=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set # CONFIG_NETDEV_1000 is not set # CONFIG_NETDEV_10000 is not set @@ -959,13 +985,17 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -993,23 +1023,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1106,6 +1122,11 @@ CONFIG_SND_PCM_OSS_PLUGINS=y CONFIG_SND_VERBOSE_PROCFS=y # CONFIG_SND_VERBOSE_PRINTK is not set # CONFIG_SND_DEBUG is not set +# CONFIG_SND_RAWMIDI_SEQ is not set +# CONFIG_SND_OPL3_LIB_SEQ is not set +# CONFIG_SND_OPL4_LIB_SEQ is not set +# CONFIG_SND_SBAWE_SEQ is not set +# CONFIG_SND_EMU10K1_SEQ is not set CONFIG_SND_DRIVERS=y # CONFIG_SND_DUMMY is not set # CONFIG_SND_MTPAV is not set @@ -1130,6 +1151,7 @@ CONFIG_SND_PCI=y # CONFIG_SND_CS4281 is not set # CONFIG_SND_CS46XX is not set # CONFIG_SND_CS5530 is not set +# CONFIG_SND_CTXFI is not set # CONFIG_SND_DARLA20 is not set # CONFIG_SND_GINA20 is not set # CONFIG_SND_LAYLA20 is not set @@ -1160,6 +1182,7 @@ CONFIG_SND_PCI=y # CONFIG_SND_INTEL8X0 is not set # CONFIG_SND_INTEL8X0M is not set # CONFIG_SND_KORG1212 is not set +# CONFIG_SND_LX6464ES is not set # CONFIG_SND_MAESTRO3 is not set # CONFIG_SND_MIXART is not set # CONFIG_SND_NM256 is not set @@ -1251,6 +1274,7 @@ CONFIG_RTC_INTF_DEV=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # CONFIG_RTC_DRV_RX8581 is not set +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1278,6 +1302,10 @@ CONFIG_RTC_DRV_CMOS=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1297,12 +1325,15 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y # CONFIG_DNOTIFY is not set # CONFIG_INOTIFY is not set +CONFIG_INOTIFY_USER=y # CONFIG_QUOTA is not set # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS is not set @@ -1464,6 +1495,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1494,6 +1526,9 @@ CONFIG_SCHED_DEBUG=y # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -1506,7 +1541,6 @@ CONFIG_DEBUG_INFO=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -1520,16 +1554,15 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set @@ -1537,6 +1570,9 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_KMEMCHECK is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set diff --git a/arch/powerpc/configs/86xx/mpc8641_hpcn_defconfig b/arch/powerpc/configs/86xx/mpc8641_hpcn_defconfig index 0bee3e30394..7016ce73260 100644 --- a/arch/powerpc/configs/86xx/mpc8641_hpcn_defconfig +++ b/arch/powerpc/configs/86xx/mpc8641_hpcn_defconfig @@ -1,26 +1,28 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:28 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:28 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_PHYS_64BIT is not set CONFIG_ALTIVEC=y CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y CONFIG_SMP=y CONFIG_NR_CPUS=2 CONFIG_PPC32=y @@ -32,15 +34,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -54,11 +57,13 @@ CONFIG_PPC_UDBG_16550=y CONFIG_GENERIC_TBSYNC=y CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -113,7 +118,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y CONFIG_KALLSYMS_EXTRA_PASS=y -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -126,9 +130,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -143,6 +154,10 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_USE_GENERIC_SMP_HELPERS=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -156,7 +171,7 @@ CONFIG_MODVERSIONS=y # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_STOP_MACHINE=y CONFIG_BLOCK=y -CONFIG_LBD=y +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -234,7 +249,9 @@ CONFIG_BINFMT_ELF=y # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set # CONFIG_HAVE_AOUT is not set CONFIG_BINFMT_MISC=m -# CONFIG_IOMMU_HELPER is not set +CONFIG_IOMMU_HELPER=y +CONFIG_SWIOTLB=y +CONFIG_PPC_NEED_DMA_SYNC_OPS=y CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -256,9 +273,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -401,6 +418,7 @@ CONFIG_SCTP_HMAC_MD5=y # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -419,7 +437,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -444,6 +466,7 @@ CONFIG_EXTRA_FIRMWARE="" # CONFIG_MTD is not set CONFIG_OF_DEVICE=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -479,7 +502,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set CONFIG_EEPROM_LEGACY=y +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -503,10 +528,6 @@ CONFIG_BLK_DEV_SR=y # CONFIG_BLK_DEV_SR_VENDOR is not set CONFIG_CHR_DEV_SG=y # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# CONFIG_SCSI_MULTI_LUN=y # CONFIG_SCSI_CONSTANTS is not set CONFIG_SCSI_LOGGING=y @@ -524,6 +545,7 @@ CONFIG_SCSI_WAIT_SCAN=m CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set # CONFIG_SCSI_CXGB3_ISCSI is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -532,6 +554,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -551,7 +574,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set @@ -635,14 +657,17 @@ CONFIG_PATA_ALI=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y CONFIG_DUMMY=y # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -689,6 +714,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -708,8 +734,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -909,13 +937,17 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -943,76 +975,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -CONFIG_DVB_CORE=m -CONFIG_VIDEO_MEDIA=m - -# -# Multimedia drivers -# -# CONFIG_MEDIA_ATTACH is not set -CONFIG_MEDIA_TUNER=m -# CONFIG_MEDIA_TUNER_CUSTOMISE is not set -CONFIG_MEDIA_TUNER_SIMPLE=m -CONFIG_MEDIA_TUNER_TDA8290=m -CONFIG_MEDIA_TUNER_TDA9887=m -CONFIG_MEDIA_TUNER_TEA5761=m -CONFIG_MEDIA_TUNER_TEA5767=m -CONFIG_MEDIA_TUNER_MT20XX=m -CONFIG_MEDIA_TUNER_XC2028=m -CONFIG_MEDIA_TUNER_XC5000=m -CONFIG_MEDIA_TUNER_MC44S803=m -# CONFIG_DVB_DYNAMIC_MINORS is not set -CONFIG_DVB_CAPTURE_DRIVERS=y - -# -# Supported SAA7146 based PCI Adapters -# -# CONFIG_TTPCI_EEPROM is not set -# CONFIG_DVB_BUDGET_CORE is not set - -# -# Supported USB Adapters -# -# CONFIG_DVB_USB is not set -# CONFIG_DVB_TTUSB_BUDGET is not set -# CONFIG_DVB_TTUSB_DEC is not set -# CONFIG_DVB_SIANO_SMS1XXX is not set - -# -# Supported FlexCopII (B2C2) Adapters -# -# CONFIG_DVB_B2C2_FLEXCOP is not set - -# -# Supported BT878 Adapters -# - -# -# Supported Pluto2 Adapters -# -# CONFIG_DVB_PLUTO2 is not set - -# -# Supported SDMC DM1105 Adapters -# -# CONFIG_DVB_DM1105 is not set - -# -# Supported DVB Frontends -# -# CONFIG_DVB_FE_CUSTOMISE is not set -CONFIG_DAB=y -# CONFIG_USB_DABUSB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1052,6 +1017,11 @@ CONFIG_SND_VERBOSE_PROCFS=y # CONFIG_SND_VERBOSE_PRINTK is not set # CONFIG_SND_DEBUG is not set CONFIG_SND_VMASTER=y +# CONFIG_SND_RAWMIDI_SEQ is not set +# CONFIG_SND_OPL3_LIB_SEQ is not set +# CONFIG_SND_OPL4_LIB_SEQ is not set +# CONFIG_SND_SBAWE_SEQ is not set +# CONFIG_SND_EMU10K1_SEQ is not set CONFIG_SND_AC97_CODEC=y CONFIG_SND_DRIVERS=y # CONFIG_SND_DUMMY is not set @@ -1078,6 +1048,7 @@ CONFIG_SND_PCI=y # CONFIG_SND_CS4281 is not set # CONFIG_SND_CS46XX is not set # CONFIG_SND_CS5530 is not set +# CONFIG_SND_CTXFI is not set # CONFIG_SND_DARLA20 is not set # CONFIG_SND_GINA20 is not set # CONFIG_SND_LAYLA20 is not set @@ -1108,6 +1079,7 @@ CONFIG_SND_PCI=y CONFIG_SND_INTEL8X0=y # CONFIG_SND_INTEL8X0M is not set # CONFIG_SND_KORG1212 is not set +# CONFIG_SND_LX6464ES is not set # CONFIG_SND_MAESTRO3 is not set # CONFIG_SND_MIXART is not set # CONFIG_SND_NM256 is not set @@ -1152,7 +1124,7 @@ CONFIG_HID_BELKIN=y CONFIG_HID_CHERRY=y CONFIG_HID_CHICONY=y CONFIG_HID_CYPRESS=y -# CONFIG_DRAGONRISE_FF is not set +# CONFIG_HID_DRAGONRISE is not set CONFIG_HID_EZKEY=y # CONFIG_HID_KYE is not set CONFIG_HID_GYRATION=y @@ -1169,10 +1141,11 @@ CONFIG_HID_PETALYNX=y CONFIG_HID_SAMSUNG=y CONFIG_HID_SONY=y CONFIG_HID_SUNPLUS=y -# CONFIG_GREENASIA_FF is not set +# CONFIG_HID_GREENASIA is not set +# CONFIG_HID_SMARTJOYPLUS is not set # CONFIG_HID_TOPSEED is not set -CONFIG_THRUSTMASTER_FF=m -CONFIG_ZEROPLUS_FF=m +# CONFIG_HID_THRUSTMASTER is not set +# CONFIG_HID_ZEROPLUS is not set CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y @@ -1198,6 +1171,7 @@ CONFIG_USB_MON=y # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set CONFIG_USB_EHCI_HCD=y # CONFIG_USB_EHCI_ROOT_HUB_TT is not set # CONFIG_USB_EHCI_TT_NEWSCHED is not set @@ -1207,9 +1181,9 @@ CONFIG_USB_EHCI_HCD_PPC_OF=y # CONFIG_USB_ISP116X_HCD is not set # CONFIG_USB_ISP1760_HCD is not set CONFIG_USB_OHCI_HCD=y -CONFIG_USB_OHCI_HCD_PPC_OF=y CONFIG_USB_OHCI_HCD_PPC_OF_BE=y CONFIG_USB_OHCI_HCD_PPC_OF_LE=y +CONFIG_USB_OHCI_HCD_PPC_OF=y CONFIG_USB_OHCI_HCD_PCI=y CONFIG_USB_OHCI_BIG_ENDIAN_DESC=y CONFIG_USB_OHCI_BIG_ENDIAN_MMIO=y @@ -1329,6 +1303,7 @@ CONFIG_RTC_INTF_DEV=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # CONFIG_RTC_DRV_RX8581 is not set +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1356,6 +1331,10 @@ CONFIG_RTC_DRV_CMOS=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1375,11 +1354,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1454,6 +1434,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y CONFIG_NFSD=y # CONFIG_NFSD_V3 is not set @@ -1555,6 +1536,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1585,6 +1567,9 @@ CONFIG_SCHED_DEBUG=y # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -1597,7 +1582,6 @@ CONFIG_DEBUG_INFO=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -1611,16 +1595,15 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set @@ -1628,6 +1611,9 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_KMEMCHECK is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set diff --git a/arch/powerpc/configs/86xx/sbc8641d_defconfig b/arch/powerpc/configs/86xx/sbc8641d_defconfig index c30a0c71587..f5ca2e0cd40 100644 --- a/arch/powerpc/configs/86xx/sbc8641d_defconfig +++ b/arch/powerpc/configs/86xx/sbc8641d_defconfig @@ -1,26 +1,28 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:27 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:26 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_PHYS_64BIT is not set CONFIG_ALTIVEC=y CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y CONFIG_SMP=y CONFIG_NR_CPUS=2 CONFIG_PPC32=y @@ -32,16 +34,17 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_GENERIC_LOCKBREAK=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -55,11 +58,13 @@ CONFIG_PPC_UDBG_16550=y CONFIG_GENERIC_TBSYNC=y CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -113,7 +118,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -126,8 +130,15 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y CONFIG_SLAB=y # CONFIG_SLUB is not set @@ -142,6 +153,11 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_USE_GENERIC_SMP_HELPERS=y + +# +# GCOV-based kernel profiling +# +# CONFIG_GCOV_KERNEL is not set # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -155,7 +171,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_STOP_MACHINE=y CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -234,6 +250,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set CONFIG_BINFMT_MISC=m # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -255,9 +272,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -284,6 +301,8 @@ CONFIG_PCI_DOMAINS=y CONFIG_PCI_SYSCALL=y CONFIG_PCIEPORTBUS=y CONFIG_PCIEAER=y +# CONFIG_PCIE_ECRC is not set +# CONFIG_PCIEAER_INJECT is not set # CONFIG_PCIEASPM is not set CONFIG_ARCH_SUPPORTS_MSI=y # CONFIG_PCI_MSI is not set @@ -508,6 +527,7 @@ CONFIG_LLC=m # CONFIG_ECONET is not set CONFIG_WAN_ROUTER=m # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set CONFIG_NET_SCHED=y # @@ -564,7 +584,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -675,6 +699,7 @@ CONFIG_MTD_PHYSMAP_OF=y # CONFIG_MTD_UBI is not set CONFIG_OF_DEVICE=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -709,7 +734,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -736,6 +763,7 @@ CONFIG_BLK_DEV_DM=y CONFIG_DM_CRYPT=y CONFIG_DM_SNAPSHOT=y CONFIG_DM_MIRROR=y +# CONFIG_DM_LOG_USERSPACE is not set CONFIG_DM_ZERO=y # CONFIG_DM_MULTIPATH is not set # CONFIG_DM_DELAY is not set @@ -747,14 +775,17 @@ CONFIG_DM_ZERO=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y CONFIG_DUMMY=m CONFIG_BONDING=m # CONFIG_MACVLAN is not set @@ -801,6 +832,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -820,8 +852,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -1018,13 +1052,17 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -1079,6 +1117,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -1127,23 +1166,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1207,6 +1232,10 @@ CONFIG_USB_ARCH_HAS_EHCI=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1236,8 +1265,8 @@ CONFIG_REISERFS_FS_POSIX_ACL=y # CONFIG_REISERFS_FS_SECURITY is not set # CONFIG_JFS_FS is not set CONFIG_FS_POSIX_ACL=y -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set CONFIG_OCFS2_FS=m CONFIG_OCFS2_FS_O2CB=m CONFIG_OCFS2_FS_STATS=y @@ -1245,6 +1274,8 @@ CONFIG_OCFS2_DEBUG_MASKLOG=y # CONFIG_OCFS2_DEBUG_FS is not set # CONFIG_OCFS2_FS_POSIX_ACL is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1318,6 +1349,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set CONFIG_LOCKD=y @@ -1409,6 +1441,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1434,10 +1467,14 @@ CONFIG_SCHED_DEBUG=y # CONFIG_TIMER_STATS is not set # CONFIG_DEBUG_OBJECTS is not set # CONFIG_DEBUG_SLAB is not set +CONFIG_DEBUG_PREEMPT=y # CONFIG_DEBUG_RT_MUTEXES is not set # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -1449,7 +1486,6 @@ CONFIG_DEBUG_INFO=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -1463,17 +1499,16 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_PREEMPT_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set @@ -1482,9 +1517,13 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_KMEMCHECK is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set +# CONFIG_PPC_EMULATED_STATS is not set # CONFIG_CODE_PATCHING_SELFTEST is not set # CONFIG_FTR_FIXUP_SELFTEST is not set # CONFIG_MSI_BITMAP_SELFTEST is not set @@ -1505,7 +1544,6 @@ CONFIG_SECURITY_NETWORK=y # CONFIG_SECURITY_NETWORK_XFRM is not set # CONFIG_SECURITY_PATH is not set # CONFIG_SECURITY_FILE_CAPABILITIES is not set -CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR=0 # CONFIG_SECURITY_TOMOYO is not set CONFIG_CRYPTO=y diff --git a/arch/powerpc/configs/adder875_defconfig b/arch/powerpc/configs/adder875_defconfig index 74f7f7c6fdc..aece6bb5f73 100644 --- a/arch/powerpc/configs/adder875_defconfig +++ b/arch/powerpc/configs/adder875_defconfig @@ -1,14 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:21:50 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:31:47 2009 # # CONFIG_PPC64 is not set # # Processor support # -# CONFIG_6xx is not set +# CONFIG_PPC_BOOK3S_32 is not set # CONFIG_PPC_85xx is not set CONFIG_PPC_8xx=y # CONFIG_40x is not set @@ -27,15 +27,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -49,12 +50,14 @@ CONFIG_OF=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y # CONFIG_DEFAULT_UIMAGE is not set CONFIG_REDBOOT=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -101,7 +104,6 @@ CONFIG_EMBEDDED=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -114,8 +116,15 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set # CONFIG_VM_EVENT_COUNTERS is not set CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -129,13 +138,18 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_CLK=y + +# +# GCOV-based kernel profiling +# +# CONFIG_GCOV_KERNEL is not set # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y CONFIG_BASE_SMALL=1 # CONFIG_MODULES is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -220,6 +234,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_MATH_EMULATION is not set # CONFIG_8XX_MINIMAL_FPEMU is not set # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_PPC_NEED_DMA_SYNC_OPS=y CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y @@ -239,9 +254,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -280,6 +295,7 @@ CONFIG_PAGE_OFFSET=0xc0000000 CONFIG_KERNEL_START=0xc0000000 CONFIG_PHYSICAL_START=0x00000000 CONFIG_TASK_SIZE=0x80000000 +CONFIG_CONSISTENT_SIZE=0x00200000 CONFIG_NET=y # @@ -336,6 +352,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -353,7 +370,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -452,6 +473,7 @@ CONFIG_MTD_PHYSMAP_OF=y # # CONFIG_MTD_UBI is not set CONFIG_OF_DEVICE=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set # CONFIG_BLK_DEV is not set # CONFIG_MISC_DEVICES is not set @@ -469,7 +491,6 @@ CONFIG_HAVE_IDE=y # CONFIG_MD is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -508,6 +529,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set CONFIG_FS_ENET=y # CONFIG_FS_ENET_HAS_SCC is not set CONFIG_FS_ENET_HAS_FEC=y @@ -556,11 +578,11 @@ CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 # CONFIG_INPUT_KEYBOARD=y CONFIG_KEYBOARD_ATKBD=y -# CONFIG_KEYBOARD_SUNKBD is not set # CONFIG_KEYBOARD_LKKBD is not set -# CONFIG_KEYBOARD_XTKBD is not set # CONFIG_KEYBOARD_NEWTON is not set # CONFIG_KEYBOARD_STOWAWAY is not set +# CONFIG_KEYBOARD_SUNKBD is not set +# CONFIG_KEYBOARD_XTKBD is not set CONFIG_INPUT_MOUSE=y CONFIG_MOUSE_PS2=y CONFIG_MOUSE_PS2_ALPS=y @@ -622,6 +644,11 @@ CONFIG_GEN_RTC=y # CONFIG_TCG_TPM is not set # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -644,22 +671,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -685,6 +697,10 @@ CONFIG_VIDEO_OUTPUT_CONTROL=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -696,12 +712,15 @@ CONFIG_VIDEO_OUTPUT_CONTROL=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y # CONFIG_DNOTIFY is not set # CONFIG_INOTIFY is not set +CONFIG_INOTIFY_USER=y # CONFIG_QUOTA is not set # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS is not set @@ -818,6 +837,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -846,6 +866,9 @@ CONFIG_SCHED_DEBUG=y # CONFIG_SLUB_STATS is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -857,7 +880,6 @@ CONFIG_DEBUG_INFO=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -870,16 +892,15 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set @@ -888,9 +909,13 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_KMEMCHECK is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set +# CONFIG_PPC_EMULATED_STATS is not set # CONFIG_CODE_PATCHING_SELFTEST is not set # CONFIG_FTR_FIXUP_SELFTEST is not set # CONFIG_MSI_BITMAP_SELFTEST is not set diff --git a/arch/powerpc/configs/c2k_defconfig b/arch/powerpc/configs/c2k_defconfig index 9ffa8de9280..8105360d53f 100644 --- a/arch/powerpc/configs/c2k_defconfig +++ b/arch/powerpc/configs/c2k_defconfig @@ -1,25 +1,27 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:21:51 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:31:48 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_ALTIVEC is not set CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_NOT_COHERENT_CACHE=y CONFIG_CHECK_CACHE_COHERENCY=y @@ -32,15 +34,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -54,11 +57,13 @@ CONFIG_OF=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y # CONFIG_DEFAULT_UIMAGE is not set # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -118,7 +123,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set CONFIG_KALLSYMS_EXTRA_PASS=y -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -131,16 +135,23 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y # CONFIG_SLOB is not set CONFIG_PROFILING=y CONFIG_TRACEPOINTS=y -# CONFIG_MARKERS is not set +CONFIG_MARKERS=y CONFIG_OPROFILE=m CONFIG_HAVE_OPROFILE=y CONFIG_KPROBES=y @@ -150,6 +161,11 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# +# CONFIG_GCOV_KERNEL is not set # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -162,7 +178,7 @@ CONFIG_MODULE_UNLOAD=y CONFIG_MODVERSIONS=y # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -CONFIG_LBD=y +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -258,6 +274,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set CONFIG_BINFMT_MISC=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_PPC_NEED_DMA_SYNC_OPS=y CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y @@ -279,9 +296,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -331,6 +348,7 @@ CONFIG_PAGE_OFFSET=0xc0000000 CONFIG_KERNEL_START=0xc0000000 CONFIG_PHYSICAL_START=0x00000000 CONFIG_TASK_SIZE=0xc0000000 +CONFIG_CONSISTENT_SIZE=0x00200000 CONFIG_NET=y # @@ -583,6 +601,7 @@ CONFIG_LLC=m # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set CONFIG_NET_SCHED=y # @@ -663,7 +682,11 @@ CONFIG_WIRELESS_OLD_REGULATORY=y CONFIG_WIRELESS_EXT=y CONFIG_WIRELESS_EXT_SYSFS=y # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -772,6 +795,7 @@ CONFIG_MTD_PHYSMAP_OF=y # CONFIG_MTD_UBI is not set CONFIG_OF_DEVICE=y CONFIG_OF_I2C=m +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -816,10 +840,6 @@ CONFIG_BLK_DEV_SR=m CONFIG_BLK_DEV_SR_VENDOR=y CONFIG_CHR_DEV_SG=m # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# # CONFIG_SCSI_MULTI_LUN is not set CONFIG_SCSI_CONSTANTS=y CONFIG_SCSI_LOGGING=y @@ -836,6 +856,7 @@ CONFIG_SCSI_ISCSI_ATTRS=m CONFIG_SCSI_SRP_ATTRS=m CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set +# CONFIG_SCSI_BNX2_ISCSI is not set CONFIG_BLK_DEV_3W_XXXX_RAID=m CONFIG_SCSI_3W_9XXX=m CONFIG_SCSI_ACARD=m @@ -854,6 +875,7 @@ CONFIG_AIC79XX_RESET_DELAY_MS=15000 CONFIG_AIC79XX_DEBUG_MASK=0 # CONFIG_AIC79XX_REG_PRETTY_PRINT is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set CONFIG_SCSI_ARCMSR=m @@ -875,7 +897,6 @@ CONFIG_SCSI_GDTH=m CONFIG_SCSI_IPS=m CONFIG_SCSI_INITIO=m # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set CONFIG_SCSI_SYM53C8XX_2=m CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1 @@ -903,14 +924,17 @@ CONFIG_SCSI_LPFC=m # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y CONFIG_DUMMY=m CONFIG_BONDING=m # CONFIG_MACVLAN is not set @@ -957,6 +981,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -976,6 +1001,7 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_MV643XX_ETH=y # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set @@ -1177,13 +1203,17 @@ CONFIG_I2C_MV64XXX=m CONFIG_SENSORS_PCF8574=m # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -1238,6 +1268,7 @@ CONFIG_SENSORS_SMSC47M1=m CONFIG_SENSORS_SMSC47B397=m # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set CONFIG_SENSORS_VIA686A=m # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -1266,7 +1297,6 @@ CONFIG_SOFT_WATCHDOG=m # CONFIG_PCIPCWATCHDOG=m CONFIG_WDTPCI=m -CONFIG_WDT_501_PCI=y # # USB-based Watchdog Cards @@ -1289,23 +1319,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -# CONFIG_DAB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1354,6 +1370,7 @@ CONFIG_USB_MON=m # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set CONFIG_USB_EHCI_HCD=m CONFIG_USB_EHCI_ROOT_HUB_TT=y # CONFIG_USB_EHCI_TT_NEWSCHED is not set @@ -1362,9 +1379,9 @@ CONFIG_USB_EHCI_HCD_PPC_OF=y # CONFIG_USB_ISP116X_HCD is not set # CONFIG_USB_ISP1760_HCD is not set CONFIG_USB_OHCI_HCD=m -CONFIG_USB_OHCI_HCD_PPC_OF=y CONFIG_USB_OHCI_HCD_PPC_OF_BE=y # CONFIG_USB_OHCI_HCD_PPC_OF_LE is not set +CONFIG_USB_OHCI_HCD_PPC_OF=y CONFIG_USB_OHCI_HCD_PCI=y CONFIG_USB_OHCI_BIG_ENDIAN_DESC=y CONFIG_USB_OHCI_BIG_ENDIAN_MMIO=y @@ -1545,6 +1562,10 @@ CONFIG_DMADEVICES=y # # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1563,11 +1584,12 @@ CONFIG_FS_MBCACHE=m # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set CONFIG_FS_POSIX_ACL=y -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1652,6 +1674,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y CONFIG_NFS_V3_ACL=y CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set CONFIG_LOCKD=y @@ -1764,6 +1787,7 @@ CONFIG_HAS_DMA=y CONFIG_CHECK_SIGNATURE=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1794,6 +1818,9 @@ CONFIG_SCHED_DEBUG=y # CONFIG_RT_MUTEX_TESTER is not set CONFIG_DEBUG_SPINLOCK=y # CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set CONFIG_DEBUG_SPINLOCK_SLEEP=y # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set CONFIG_STACKTRACE=y @@ -1807,7 +1834,6 @@ CONFIG_DEBUG_MEMORY_INIT=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_KPROBES_SANITY_TEST is not set @@ -1824,30 +1850,34 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_RING_BUFFER=y +CONFIG_EVENT_TRACING=y +CONFIG_CONTEXT_SWITCH_TRACER=y CONFIG_TRACING=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set # CONFIG_BLK_DEV_IO_TRACE is not set -# CONFIG_FTRACE_STARTUP_TEST is not set +# CONFIG_RING_BUFFER_BENCHMARK is not set # CONFIG_DYNAMIC_DEBUG is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 CONFIG_DEBUG_STACKOVERFLOW=y CONFIG_DEBUG_STACK_USAGE=y +# CONFIG_PPC_EMULATED_STATS is not set # CONFIG_CODE_PATCHING_SELFTEST is not set # CONFIG_FTR_FIXUP_SELFTEST is not set # CONFIG_MSI_BITMAP_SELFTEST is not set @@ -1869,7 +1899,6 @@ CONFIG_SECURITY_NETWORK=y # CONFIG_SECURITY_NETWORK_XFRM is not set # CONFIG_SECURITY_PATH is not set # CONFIG_SECURITY_FILE_CAPABILITIES is not set -CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR=0 CONFIG_SECURITY_SELINUX=y CONFIG_SECURITY_SELINUX_BOOTPARAM=y CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=1 diff --git a/arch/powerpc/configs/ep8248e_defconfig b/arch/powerpc/configs/ep8248e_defconfig index 04915c3a43f..0aa5b43ffeb 100644 --- a/arch/powerpc/configs/ep8248e_defconfig +++ b/arch/powerpc/configs/ep8248e_defconfig @@ -1,25 +1,27 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:21:52 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:31:49 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_ALTIVEC is not set CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -30,15 +32,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_GPIO=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set @@ -53,11 +56,13 @@ CONFIG_OF=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y # CONFIG_DEFAULT_UIMAGE is not set # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -99,7 +104,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -112,8 +116,15 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y CONFIG_SLAB=y # CONFIG_SLUB is not set @@ -127,6 +138,10 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_CLK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -134,7 +149,7 @@ CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 # CONFIG_MODULES is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_INTEGRITY is not set # @@ -213,6 +228,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set CONFIG_BINFMT_MISC=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -228,9 +244,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -300,6 +316,7 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_NET_IPIP is not set # CONFIG_NET_IPGRE is not set # CONFIG_IP_MROUTE is not set +# CONFIG_ARPD is not set CONFIG_SYN_COOKIES=y # CONFIG_INET_AH is not set # CONFIG_INET_ESP is not set @@ -380,7 +397,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set @@ -485,6 +506,7 @@ CONFIG_MTD_PHYSMAP_OF=y # CONFIG_MTD_UBI is not set CONFIG_OF_DEVICE=y CONFIG_OF_GPIO=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -520,13 +542,17 @@ CONFIG_HAVE_IDE=y # # -# A new alternative FireWire stack is available with EXPERIMENTAL=y +# You can enable one or both FireWire driver stacks. # + +# +# See the help texts for more information. +# +# CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_EQUALIZER is not set @@ -573,6 +599,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_FS_ENET=y # CONFIG_FS_ENET_HAS_SCC is not set @@ -594,8 +621,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set # CONFIG_FSL_PQ_MDIO is not set # CONFIG_GIANFAR is not set +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_JME is not set @@ -685,6 +714,10 @@ CONFIG_HW_RANDOM=y CONFIG_DEVPORT=y # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_ARCH_REQUIRE_GPIOLIB=y CONFIG_GPIOLIB=y @@ -728,22 +761,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -771,6 +789,10 @@ CONFIG_DAB=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -787,9 +809,10 @@ CONFIG_JBD=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set # CONFIG_OCFS2_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -935,6 +958,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -960,6 +984,9 @@ CONFIG_DEBUG_KERNEL=y # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -971,7 +998,6 @@ CONFIG_DEBUG_INFO=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -985,22 +1011,23 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set # CONFIG_BLK_DEV_IO_TRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set diff --git a/arch/powerpc/configs/ep88xc_defconfig b/arch/powerpc/configs/ep88xc_defconfig index c2a439595f4..2c292e25cc0 100644 --- a/arch/powerpc/configs/ep88xc_defconfig +++ b/arch/powerpc/configs/ep88xc_defconfig @@ -1,14 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:21:53 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:31:49 2009 # # CONFIG_PPC64 is not set # # Processor support # -# CONFIG_6xx is not set +# CONFIG_PPC_BOOK3S_32 is not set # CONFIG_PPC_85xx is not set CONFIG_PPC_8xx=y # CONFIG_40x is not set @@ -27,15 +27,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -49,11 +50,13 @@ CONFIG_OF=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y # CONFIG_DEFAULT_UIMAGE is not set # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -100,7 +103,6 @@ CONFIG_EMBEDDED=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -113,8 +115,15 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set # CONFIG_VM_EVENT_COUNTERS is not set CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -128,13 +137,17 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_CLK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y CONFIG_BASE_SMALL=1 # CONFIG_MODULES is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -220,6 +233,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_MATH_EMULATION is not set CONFIG_8XX_MINIMAL_FPEMU=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_PPC_NEED_DMA_SYNC_OPS=y CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y @@ -239,9 +253,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -280,6 +294,7 @@ CONFIG_PAGE_OFFSET=0xc0000000 CONFIG_KERNEL_START=0xc0000000 CONFIG_PHYSICAL_START=0x00000000 CONFIG_TASK_SIZE=0x80000000 +CONFIG_CONSISTENT_SIZE=0x00200000 CONFIG_NET=y # @@ -336,6 +351,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -353,7 +369,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -452,6 +472,7 @@ CONFIG_MTD_PHYSMAP_OF=y # # CONFIG_MTD_UBI is not set CONFIG_OF_DEVICE=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set # CONFIG_BLK_DEV is not set # CONFIG_MISC_DEVICES is not set @@ -469,7 +490,6 @@ CONFIG_HAVE_IDE=y # CONFIG_MD is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -508,6 +528,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set CONFIG_FS_ENET=y # CONFIG_FS_ENET_HAS_SCC is not set CONFIG_FS_ENET_HAS_FEC=y @@ -579,6 +600,11 @@ CONFIG_GEN_RTC=y # CONFIG_TCG_TPM is not set # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -602,22 +628,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -642,6 +653,10 @@ CONFIG_DAB=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -653,12 +668,15 @@ CONFIG_DAB=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y # CONFIG_DNOTIFY is not set # CONFIG_INOTIFY is not set +CONFIG_INOTIFY_USER=y # CONFIG_QUOTA is not set # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS is not set @@ -775,6 +793,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -803,6 +822,9 @@ CONFIG_SCHED_DEBUG=y # CONFIG_SLUB_STATS is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -814,7 +836,6 @@ CONFIG_DEBUG_INFO=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -827,16 +848,15 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set @@ -844,6 +864,9 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_KMEMCHECK is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set diff --git a/arch/powerpc/configs/linkstation_defconfig b/arch/powerpc/configs/linkstation_defconfig index a4053ab9e24..45671e7dd2c 100644 --- a/arch/powerpc/configs/linkstation_defconfig +++ b/arch/powerpc/configs/linkstation_defconfig @@ -1,25 +1,27 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:21:54 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:31:50 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_ALTIVEC is not set CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -30,15 +32,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -52,11 +55,13 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -114,7 +119,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -127,9 +131,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set # CONFIG_COMPAT_BRK is not set # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -143,6 +154,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -155,7 +170,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -237,6 +252,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set # CONFIG_BINFMT_MISC is not set # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -257,9 +273,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -480,6 +496,7 @@ CONFIG_IP_NF_ARP_MANGLE=m # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -498,7 +515,11 @@ CONFIG_WIRELESS_OLD_REGULATORY=y CONFIG_WIRELESS_EXT=y CONFIG_WIRELESS_EXT_SYSFS=y # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -647,7 +668,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set CONFIG_EEPROM_LEGACY=m +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -670,10 +693,6 @@ CONFIG_BLK_DEV_SD=y # CONFIG_BLK_DEV_SR is not set CONFIG_CHR_DEV_SG=y # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# CONFIG_SCSI_MULTI_LUN=y # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -691,6 +710,7 @@ CONFIG_SCSI_WAIT_SCAN=m CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set # CONFIG_SCSI_CXGB3_ISCSI is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -699,6 +719,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -718,7 +739,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set @@ -802,14 +822,17 @@ CONFIG_PATA_SIL680=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -846,6 +869,7 @@ CONFIG_TULIP_MMIO=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -865,8 +889,10 @@ CONFIG_R8169=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set # CONFIG_FSL_PQ_MDIO is not set # CONFIG_GIANFAR is not set +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -1074,13 +1100,17 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -1135,6 +1165,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -1169,23 +1200,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -# CONFIG_DAB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1245,6 +1262,7 @@ CONFIG_USB_MON=y # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set CONFIG_USB_EHCI_HCD=y # CONFIG_USB_EHCI_ROOT_HUB_TT is not set # CONFIG_USB_EHCI_TT_NEWSCHED is not set @@ -1254,9 +1272,9 @@ CONFIG_USB_EHCI_HCD_PPC_OF=y # CONFIG_USB_ISP116X_HCD is not set # CONFIG_USB_ISP1760_HCD is not set CONFIG_USB_OHCI_HCD=y -CONFIG_USB_OHCI_HCD_PPC_OF=y CONFIG_USB_OHCI_HCD_PPC_OF_BE=y # CONFIG_USB_OHCI_HCD_PPC_OF_LE is not set +CONFIG_USB_OHCI_HCD_PPC_OF=y CONFIG_USB_OHCI_HCD_PCI=y CONFIG_USB_OHCI_BIG_ENDIAN_DESC=y CONFIG_USB_OHCI_BIG_ENDIAN_MMIO=y @@ -1423,6 +1441,7 @@ CONFIG_RTC_DRV_RS5C372=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # CONFIG_RTC_DRV_RX8581 is not set +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1450,6 +1469,10 @@ CONFIG_RTC_DRV_RS5C372=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1469,14 +1492,16 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set CONFIG_FS_POSIX_ACL=y -CONFIG_FILE_LOCKING=y CONFIG_XFS_FS=m # CONFIG_XFS_QUOTA is not set # CONFIG_XFS_POSIX_ACL is not set # CONFIG_XFS_RT is not set # CONFIG_XFS_DEBUG is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1548,6 +1573,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y CONFIG_NFS_V3_ACL=y CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y CONFIG_NFSD=m CONFIG_NFSD_V3=y @@ -1578,7 +1604,7 @@ CONFIG_CIFS=m # # CONFIG_PARTITION_ADVANCED is not set CONFIG_MSDOS_PARTITION=y -CONFIG_NLS=m +CONFIG_NLS=y CONFIG_NLS_DEFAULT="iso8859-1" CONFIG_NLS_CODEPAGE_437=m # CONFIG_NLS_CODEPAGE_737 is not set @@ -1645,6 +1671,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1675,6 +1702,9 @@ CONFIG_SCHED_DEBUG=y # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -1686,7 +1716,6 @@ CONFIG_DEBUG_MEMORY_INIT=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -1700,16 +1729,15 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set @@ -1717,6 +1745,8 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set diff --git a/arch/powerpc/configs/mgcoge_defconfig b/arch/powerpc/configs/mgcoge_defconfig index 31e1df66515..e9491c1c3f3 100644 --- a/arch/powerpc/configs/mgcoge_defconfig +++ b/arch/powerpc/configs/mgcoge_defconfig @@ -1,25 +1,27 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:21:55 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:31:51 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_ALTIVEC is not set CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -30,15 +32,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_GPIO=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set @@ -53,6 +56,7 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y # CONFIG_DEFAULT_UIMAGE is not set CONFIG_HIBERNATE_32=y CONFIG_ARCH_HIBERNATION_POSSIBLE=y @@ -60,6 +64,7 @@ CONFIG_ARCH_HIBERNATION_POSSIBLE=y # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -105,7 +110,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -119,8 +123,15 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y CONFIG_SLAB=y # CONFIG_SLUB is not set @@ -134,6 +145,11 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_CLK=y + +# +# GCOV-based kernel profiling +# +# CONFIG_GCOV_KERNEL is not set # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -141,7 +157,7 @@ CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 # CONFIG_MODULES is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_INTEGRITY is not set # @@ -225,6 +241,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set CONFIG_BINFMT_MISC=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -240,9 +257,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -313,6 +330,7 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_NET_IPIP is not set # CONFIG_NET_IPGRE is not set # CONFIG_IP_MROUTE is not set +# CONFIG_ARPD is not set CONFIG_SYN_COOKIES=y # CONFIG_INET_AH is not set # CONFIG_INET_ESP is not set @@ -374,7 +392,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set @@ -484,6 +506,7 @@ CONFIG_MTD_PHYSMAP_OF=y # CONFIG_MTD_UBI is not set CONFIG_OF_DEVICE=y CONFIG_OF_GPIO=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -523,13 +546,17 @@ CONFIG_HAVE_IDE=y # # -# A new alternative FireWire stack is available with EXPERIMENTAL=y +# You can enable one or both FireWire driver stacks. # + +# +# See the help texts for more information. +# +# CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_EQUALIZER is not set @@ -577,6 +604,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_FS_ENET=y CONFIG_FS_ENET_HAS_SCC=y @@ -654,6 +682,10 @@ CONFIG_HW_RANDOM=y CONFIG_DEVPORT=y # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_ARCH_REQUIRE_GPIOLIB=y CONFIG_GPIOLIB=y @@ -697,22 +729,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -# CONFIG_DAB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -740,6 +757,10 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -757,9 +778,10 @@ CONFIG_JBD=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set # CONFIG_OCFS2_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -916,6 +938,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -941,6 +964,9 @@ CONFIG_DEBUG_KERNEL=y # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -952,7 +978,6 @@ CONFIG_DEBUG_INFO=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -966,16 +991,15 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set @@ -983,9 +1007,12 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_DYNAMIC_DEBUG is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set +# CONFIG_PPC_EMULATED_STATS is not set # CONFIG_CODE_PATCHING_SELFTEST is not set # CONFIG_FTR_FIXUP_SELFTEST is not set # CONFIG_MSI_BITMAP_SELFTEST is not set diff --git a/arch/powerpc/configs/mgsuvd_defconfig b/arch/powerpc/configs/mgsuvd_defconfig index 24fa90792c5..1ae85a3b294 100644 --- a/arch/powerpc/configs/mgsuvd_defconfig +++ b/arch/powerpc/configs/mgsuvd_defconfig @@ -1,14 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:21:55 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:31:52 2009 # # CONFIG_PPC64 is not set # # Processor support # -# CONFIG_6xx is not set +# CONFIG_PPC_BOOK3S_32 is not set # CONFIG_PPC_85xx is not set CONFIG_PPC_8xx=y # CONFIG_40x is not set @@ -27,15 +27,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -48,11 +49,13 @@ CONFIG_OF=y # CONFIG_PPC_UDBG_16550 is not set # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y +CONFIG_DTC=y # CONFIG_DEFAULT_UIMAGE is not set # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -102,7 +105,6 @@ CONFIG_EMBEDDED=y # CONFIG_SYSCTL_SYSCALL is not set CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set # CONFIG_HOTPLUG is not set CONFIG_PRINTK=y # CONFIG_BUG is not set @@ -115,7 +117,14 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set # CONFIG_VM_EVENT_COUNTERS is not set +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y CONFIG_SLAB=y # CONFIG_SLUB is not set @@ -129,6 +138,11 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_CLK=y + +# +# GCOV-based kernel profiling +# +# CONFIG_GCOV_KERNEL is not set # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -136,7 +150,7 @@ CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=1 # CONFIG_MODULES is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -222,6 +236,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set CONFIG_MATH_EMULATION=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_PPC_NEED_DMA_SYNC_OPS=y CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y @@ -241,9 +256,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -281,6 +296,7 @@ CONFIG_PAGE_OFFSET=0xc0000000 CONFIG_KERNEL_START=0xc0000000 CONFIG_PHYSICAL_START=0x00000000 CONFIG_TASK_SIZE=0x80000000 +CONFIG_CONSISTENT_SIZE=0x00200000 CONFIG_NET=y # @@ -342,6 +358,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -359,7 +376,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -463,6 +484,7 @@ CONFIG_MTD_PHYSMAP_OF=y # # CONFIG_MTD_UBI is not set CONFIG_OF_DEVICE=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -492,7 +514,6 @@ CONFIG_HAVE_IDE=y # CONFIG_MD is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -531,6 +552,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set CONFIG_FS_ENET=y CONFIG_FS_ENET_HAS_SCC=y # CONFIG_FS_ENET_HAS_FEC is not set @@ -602,6 +624,11 @@ CONFIG_GEN_RTC=y # CONFIG_TCG_TPM is not set # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -625,22 +652,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -# CONFIG_DAB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -665,6 +677,10 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -687,10 +703,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -823,6 +841,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -844,24 +863,14 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_DYNAMIC_DEBUG is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 +# CONFIG_PPC_EMULATED_STATS is not set # CONFIG_IRQSTACKS is not set # CONFIG_VIRQ_DEBUG is not set # CONFIG_PPC_EARLY_DEBUG is not set diff --git a/arch/powerpc/configs/mpc7448_hpc2_defconfig b/arch/powerpc/configs/mpc7448_hpc2_defconfig index 642ab67c843..f23428c3b34 100644 --- a/arch/powerpc/configs/mpc7448_hpc2_defconfig +++ b/arch/powerpc/configs/mpc7448_hpc2_defconfig @@ -1,25 +1,27 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:21:56 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:31:53 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y CONFIG_ALTIVEC=y CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -30,15 +32,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -52,11 +55,13 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -106,7 +111,6 @@ CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -119,9 +123,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -134,6 +145,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -141,7 +156,7 @@ CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 # CONFIG_MODULES is not set CONFIG_BLOCK=y -CONFIG_LBD=y +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -220,6 +235,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set CONFIG_BINFMT_MISC=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -240,9 +256,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -348,6 +364,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -365,7 +382,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -385,6 +406,7 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y # CONFIG_CONNECTOR is not set # CONFIG_MTD is not set CONFIG_OF_DEVICE=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -416,6 +438,7 @@ CONFIG_MISC_DEVICES=y # EEPROM support # # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -438,10 +461,6 @@ CONFIG_BLK_DEV_SD=y # CONFIG_BLK_DEV_SR is not set # CONFIG_CHR_DEV_SG is not set # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -458,6 +477,7 @@ CONFIG_BLK_DEV_SD=y CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set # CONFIG_SCSI_CXGB3_ISCSI is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -466,6 +486,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -485,7 +506,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set @@ -568,14 +588,17 @@ CONFIG_SATA_MV=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -642,6 +665,7 @@ CONFIG_8139TOO=y # CONFIG_SMSC9420 is not set # CONFIG_SUNDANCE is not set # CONFIG_TLAN is not set +# CONFIG_KS8842 is not set # CONFIG_VIA_RHINE is not set # CONFIG_SC92031 is not set # CONFIG_ATL2 is not set @@ -663,7 +687,9 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_TSI108_ETH=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -785,6 +811,11 @@ CONFIG_GEN_RTC=y CONFIG_DEVPORT=y # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -824,22 +855,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -896,6 +912,10 @@ CONFIG_USB_ARCH_HAS_EHCI=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -915,11 +935,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1038,6 +1059,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1063,22 +1085,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_BOOTX_TEXT is not set diff --git a/arch/powerpc/configs/mpc8272_ads_defconfig b/arch/powerpc/configs/mpc8272_ads_defconfig index cb966ca2ce8..02716f72db6 100644 --- a/arch/powerpc/configs/mpc8272_ads_defconfig +++ b/arch/powerpc/configs/mpc8272_ads_defconfig @@ -1,25 +1,27 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:21:57 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:31:54 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_ALTIVEC is not set CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -30,15 +32,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_GPIO=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set @@ -53,11 +56,13 @@ CONFIG_OF=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -99,7 +104,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -112,9 +116,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -128,6 +139,10 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_CLK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -135,7 +150,7 @@ CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 # CONFIG_MODULES is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_INTEGRITY is not set # @@ -216,6 +231,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set CONFIG_BINFMT_MISC=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -231,9 +247,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -303,6 +319,7 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_NET_IPIP is not set # CONFIG_NET_IPGRE is not set # CONFIG_IP_MROUTE is not set +# CONFIG_ARPD is not set CONFIG_SYN_COOKIES=y # CONFIG_INET_AH is not set # CONFIG_INET_ESP is not set @@ -383,7 +400,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set @@ -489,6 +510,7 @@ CONFIG_MTD_PHYSMAP_OF=y # CONFIG_MTD_UBI is not set CONFIG_OF_DEVICE=y CONFIG_OF_GPIO=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -524,13 +546,17 @@ CONFIG_HAVE_IDE=y # # -# A new alternative FireWire stack is available with EXPERIMENTAL=y +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # +# CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_EQUALIZER is not set @@ -577,6 +603,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_FS_ENET=y # CONFIG_FS_ENET_HAS_SCC is not set @@ -598,8 +625,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set # CONFIG_FSL_PQ_MDIO is not set # CONFIG_GIANFAR is not set +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_JME is not set @@ -671,12 +700,13 @@ CONFIG_INPUT_EVDEV=y # CONFIG_INPUT_KEYBOARD=y CONFIG_KEYBOARD_ATKBD=y -# CONFIG_KEYBOARD_SUNKBD is not set # CONFIG_KEYBOARD_LKKBD is not set -# CONFIG_KEYBOARD_XTKBD is not set +# CONFIG_KEYBOARD_GPIO is not set +# CONFIG_KEYBOARD_MATRIX is not set # CONFIG_KEYBOARD_NEWTON is not set # CONFIG_KEYBOARD_STOWAWAY is not set -# CONFIG_KEYBOARD_GPIO is not set +# CONFIG_KEYBOARD_SUNKBD is not set +# CONFIG_KEYBOARD_XTKBD is not set CONFIG_INPUT_MOUSE=y CONFIG_MOUSE_PS2=y CONFIG_MOUSE_PS2_ALPS=y @@ -741,6 +771,10 @@ CONFIG_HW_RANDOM=y CONFIG_DEVPORT=y # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_ARCH_REQUIRE_GPIOLIB=y CONFIG_GPIOLIB=y @@ -784,22 +818,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -828,6 +847,10 @@ CONFIG_DAB=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -847,9 +870,10 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set CONFIG_FS_POSIX_ACL=y -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set # CONFIG_OCFS2_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -998,6 +1022,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1028,6 +1053,9 @@ CONFIG_SCHED_DEBUG=y # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -1039,7 +1067,6 @@ CONFIG_DEBUG_INFO=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -1053,22 +1080,23 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set # CONFIG_BLK_DEV_IO_TRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set diff --git a/arch/powerpc/configs/mpc83xx_defconfig b/arch/powerpc/configs/mpc83xx_defconfig index 433c303eb82..4a96cb6925b 100644 --- a/arch/powerpc/configs/mpc83xx_defconfig +++ b/arch/powerpc/configs/mpc83xx_defconfig @@ -1,26 +1,28 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:21:58 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:31:55 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_FSL_EMB_PERFMON is not set # CONFIG_ALTIVEC is not set CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -31,15 +33,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_GPIO=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set @@ -54,6 +57,7 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y CONFIG_REDBOOT=y CONFIG_ARCH_SUSPEND_POSSIBLE=y @@ -61,6 +65,7 @@ CONFIG_ARCH_SUSPEND_POSSIBLE=y # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -110,7 +115,6 @@ CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -123,8 +127,15 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y CONFIG_SLAB=y # CONFIG_SLUB is not set @@ -138,6 +149,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -150,7 +165,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -192,6 +207,7 @@ CONFIG_MPC837x_MDS=y CONFIG_MPC837x_RDB=y CONFIG_SBC834x=y CONFIG_ASP834x=y +# CONFIG_KMETER1 is not set CONFIG_PPC_MPC831x=y CONFIG_PPC_MPC832x=y CONFIG_PPC_MPC834x=y @@ -241,6 +257,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set CONFIG_MATH_EMULATION=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -261,9 +278,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -374,6 +391,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -391,7 +409,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -507,6 +529,7 @@ CONFIG_MTD_NAND_FSL_ELBC=y CONFIG_OF_DEVICE=y CONFIG_OF_GPIO=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -542,7 +565,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -565,10 +590,6 @@ CONFIG_BLK_DEV_SD=y # CONFIG_BLK_DEV_SR is not set CONFIG_CHR_DEV_SG=y # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -586,6 +607,7 @@ CONFIG_SCSI_WAIT_SCAN=m CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set # CONFIG_SCSI_CXGB3_ISCSI is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -594,6 +616,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -613,7 +636,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set @@ -697,14 +719,17 @@ CONFIG_ATA_SFF=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -751,6 +776,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -770,11 +796,13 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y CONFIG_UCC_GETH=y # CONFIG_UGETH_MAGIC_PACKET is not set # CONFIG_UGETH_TX_ON_DEMAND is not set +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -965,13 +993,17 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_ARCH_REQUIRE_GPIOLIB=y CONFIG_GPIOLIB=y @@ -1050,6 +1082,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -1104,24 +1137,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y -# CONFIG_USB_DABUSB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1159,7 +1177,7 @@ CONFIG_HID_BELKIN=y CONFIG_HID_CHERRY=y CONFIG_HID_CHICONY=y CONFIG_HID_CYPRESS=y -# CONFIG_DRAGONRISE_FF is not set +# CONFIG_HID_DRAGONRISE is not set CONFIG_HID_EZKEY=y # CONFIG_HID_KYE is not set CONFIG_HID_GYRATION=y @@ -1176,10 +1194,11 @@ CONFIG_HID_PETALYNX=y CONFIG_HID_SAMSUNG=y CONFIG_HID_SONY=y CONFIG_HID_SUNPLUS=y -# CONFIG_GREENASIA_FF is not set +# CONFIG_HID_GREENASIA is not set +# CONFIG_HID_SMARTJOYPLUS is not set # CONFIG_HID_TOPSEED is not set -CONFIG_THRUSTMASTER_FF=m -CONFIG_ZEROPLUS_FF=m +# CONFIG_HID_THRUSTMASTER is not set +# CONFIG_HID_ZEROPLUS is not set CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y @@ -1205,6 +1224,7 @@ CONFIG_USB_MON=y # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_ROOT_HUB_TT=y # CONFIG_USB_EHCI_TT_NEWSCHED is not set @@ -1291,6 +1311,10 @@ CONFIG_USB_EHCI_HCD_PPC_OF=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1310,10 +1334,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1377,6 +1403,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set CONFIG_LOCKD=y @@ -1413,7 +1440,46 @@ CONFIG_MSDOS_PARTITION=y # CONFIG_KARMA_PARTITION is not set # CONFIG_EFI_PARTITION is not set # CONFIG_SYSV68_PARTITION is not set -# CONFIG_NLS is not set +CONFIG_NLS=y +CONFIG_NLS_DEFAULT="iso8859-1" +# CONFIG_NLS_CODEPAGE_437 is not set +# CONFIG_NLS_CODEPAGE_737 is not set +# CONFIG_NLS_CODEPAGE_775 is not set +# CONFIG_NLS_CODEPAGE_850 is not set +# CONFIG_NLS_CODEPAGE_852 is not set +# CONFIG_NLS_CODEPAGE_855 is not set +# CONFIG_NLS_CODEPAGE_857 is not set +# CONFIG_NLS_CODEPAGE_860 is not set +# CONFIG_NLS_CODEPAGE_861 is not set +# CONFIG_NLS_CODEPAGE_862 is not set +# CONFIG_NLS_CODEPAGE_863 is not set +# CONFIG_NLS_CODEPAGE_864 is not set +# CONFIG_NLS_CODEPAGE_865 is not set +# CONFIG_NLS_CODEPAGE_866 is not set +# CONFIG_NLS_CODEPAGE_869 is not set +# CONFIG_NLS_CODEPAGE_936 is not set +# CONFIG_NLS_CODEPAGE_950 is not set +# CONFIG_NLS_CODEPAGE_932 is not set +# CONFIG_NLS_CODEPAGE_949 is not set +# CONFIG_NLS_CODEPAGE_874 is not set +# CONFIG_NLS_ISO8859_8 is not set +# CONFIG_NLS_CODEPAGE_1250 is not set +# CONFIG_NLS_CODEPAGE_1251 is not set +# CONFIG_NLS_ASCII is not set +# CONFIG_NLS_ISO8859_1 is not set +# CONFIG_NLS_ISO8859_2 is not set +# CONFIG_NLS_ISO8859_3 is not set +# CONFIG_NLS_ISO8859_4 is not set +# CONFIG_NLS_ISO8859_5 is not set +# CONFIG_NLS_ISO8859_6 is not set +# CONFIG_NLS_ISO8859_7 is not set +# CONFIG_NLS_ISO8859_9 is not set +# CONFIG_NLS_ISO8859_13 is not set +# CONFIG_NLS_ISO8859_14 is not set +# CONFIG_NLS_ISO8859_15 is not set +# CONFIG_NLS_KOI8_R is not set +# CONFIG_NLS_KOI8_U is not set +# CONFIG_NLS_UTF8 is not set # CONFIG_DLM is not set CONFIG_UCC_FAST=y CONFIG_UCC=y @@ -1438,6 +1504,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1461,22 +1528,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_BOOTX_TEXT is not set diff --git a/arch/powerpc/configs/mpc85xx_defconfig b/arch/powerpc/configs/mpc85xx_defconfig index c162724fed4..ada595898af 100644 --- a/arch/powerpc/configs/mpc85xx_defconfig +++ b/arch/powerpc/configs/mpc85xx_defconfig @@ -1,14 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc2 -# Tue Apr 21 15:40:23 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:31:55 2009 # # CONFIG_PPC64 is not set # # Processor support # -# CONFIG_6xx is not set +# CONFIG_PPC_BOOK3S_32 is not set CONFIG_PPC_85xx=y # CONFIG_PPC_8xx is not set # CONFIG_40x is not set @@ -34,15 +34,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_GPIO=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set @@ -57,11 +58,13 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -116,7 +119,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y CONFIG_KALLSYMS_EXTRA_PASS=y -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -129,9 +131,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -146,6 +155,11 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_CLK=y + +# +# GCOV-based kernel profiling +# +# CONFIG_GCOV_KERNEL is not set # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -158,7 +172,7 @@ CONFIG_MODULE_FORCE_UNLOAD=y CONFIG_MODVERSIONS=y # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -CONFIG_LBD=y +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -191,6 +205,7 @@ CONFIG_MPC8536_DS=y CONFIG_MPC85xx_DS=y CONFIG_SOCRATES=y CONFIG_KSI8560=y +# CONFIG_XES_MPC85xx is not set CONFIG_STX_GP3=y CONFIG_TQM8540=y CONFIG_TQM8541=y @@ -241,7 +256,9 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set CONFIG_BINFMT_MISC=m CONFIG_MATH_EMULATION=y -# CONFIG_IOMMU_HELPER is not set +CONFIG_IOMMU_HELPER=y +CONFIG_SWIOTLB=y +CONFIG_PPC_NEED_DMA_SYNC_OPS=y CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -260,9 +277,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -296,7 +313,8 @@ CONFIG_ARCH_SUPPORTS_MSI=y # CONFIG_PCI_IOV is not set # CONFIG_PCCARD is not set # CONFIG_HOTPLUG_PCI is not set -# CONFIG_HAS_RAPIDIO is not set +CONFIG_HAS_RAPIDIO=y +# CONFIG_RAPIDIO is not set # # Advanced setup @@ -406,6 +424,7 @@ CONFIG_SCTP_HMAC_MD5=y # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -424,7 +443,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -450,6 +473,7 @@ CONFIG_EXTRA_FIRMWARE="" CONFIG_OF_DEVICE=y CONFIG_OF_GPIO=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -485,7 +509,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set CONFIG_EEPROM_LEGACY=y +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -509,10 +535,6 @@ CONFIG_BLK_DEV_SR=y # CONFIG_BLK_DEV_SR_VENDOR is not set CONFIG_CHR_DEV_SG=y # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# CONFIG_SCSI_MULTI_LUN=y # CONFIG_SCSI_CONSTANTS is not set CONFIG_SCSI_LOGGING=y @@ -530,6 +552,7 @@ CONFIG_SCSI_WAIT_SCAN=m CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set # CONFIG_SCSI_CXGB3_ISCSI is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -538,6 +561,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -557,7 +581,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set @@ -641,14 +664,17 @@ CONFIG_PATA_ALI=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y CONFIG_DUMMY=y # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -695,6 +721,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_FS_ENET=y CONFIG_FS_ENET_HAS_SCC=y @@ -718,11 +745,13 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y CONFIG_UCC_GETH=y # CONFIG_UGETH_MAGIC_PACKET is not set # CONFIG_UGETH_TX_ON_DEMAND is not set +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -897,6 +926,7 @@ CONFIG_I2C_HELPER_AUTO=y # I2C system bus drivers (mostly embedded / system-on-chip) # CONFIG_I2C_CPM=m +# CONFIG_I2C_DESIGNWARE is not set # CONFIG_I2C_GPIO is not set CONFIG_I2C_MPC=y # CONFIG_I2C_OCORES is not set @@ -927,13 +957,17 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_ARCH_REQUIRE_GPIOLIB=y CONFIG_GPIOLIB=y @@ -987,76 +1021,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -CONFIG_DVB_CORE=m -CONFIG_VIDEO_MEDIA=m - -# -# Multimedia drivers -# -# CONFIG_MEDIA_ATTACH is not set -CONFIG_MEDIA_TUNER=m -# CONFIG_MEDIA_TUNER_CUSTOMISE is not set -CONFIG_MEDIA_TUNER_SIMPLE=m -CONFIG_MEDIA_TUNER_TDA8290=m -CONFIG_MEDIA_TUNER_TDA9887=m -CONFIG_MEDIA_TUNER_TEA5761=m -CONFIG_MEDIA_TUNER_TEA5767=m -CONFIG_MEDIA_TUNER_MT20XX=m -CONFIG_MEDIA_TUNER_XC2028=m -CONFIG_MEDIA_TUNER_XC5000=m -CONFIG_MEDIA_TUNER_MC44S803=m -# CONFIG_DVB_DYNAMIC_MINORS is not set -CONFIG_DVB_CAPTURE_DRIVERS=y - -# -# Supported SAA7146 based PCI Adapters -# -# CONFIG_TTPCI_EEPROM is not set -# CONFIG_DVB_BUDGET_CORE is not set - -# -# Supported USB Adapters -# -# CONFIG_DVB_USB is not set -# CONFIG_DVB_TTUSB_BUDGET is not set -# CONFIG_DVB_TTUSB_DEC is not set -# CONFIG_DVB_SIANO_SMS1XXX is not set - -# -# Supported FlexCopII (B2C2) Adapters -# -# CONFIG_DVB_B2C2_FLEXCOP is not set - -# -# Supported BT878 Adapters -# - -# -# Supported Pluto2 Adapters -# -# CONFIG_DVB_PLUTO2 is not set - -# -# Supported SDMC DM1105 Adapters -# -# CONFIG_DVB_DM1105 is not set - -# -# Supported DVB Frontends -# -# CONFIG_DVB_FE_CUSTOMISE is not set -CONFIG_DAB=y -# CONFIG_USB_DABUSB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1096,6 +1063,11 @@ CONFIG_SND_VERBOSE_PROCFS=y # CONFIG_SND_VERBOSE_PRINTK is not set # CONFIG_SND_DEBUG is not set CONFIG_SND_VMASTER=y +# CONFIG_SND_RAWMIDI_SEQ is not set +# CONFIG_SND_OPL3_LIB_SEQ is not set +# CONFIG_SND_OPL4_LIB_SEQ is not set +# CONFIG_SND_SBAWE_SEQ is not set +# CONFIG_SND_EMU10K1_SEQ is not set CONFIG_SND_AC97_CODEC=y CONFIG_SND_DRIVERS=y # CONFIG_SND_DUMMY is not set @@ -1122,6 +1094,7 @@ CONFIG_SND_PCI=y # CONFIG_SND_CS4281 is not set # CONFIG_SND_CS46XX is not set # CONFIG_SND_CS5530 is not set +# CONFIG_SND_CTXFI is not set # CONFIG_SND_DARLA20 is not set # CONFIG_SND_GINA20 is not set # CONFIG_SND_LAYLA20 is not set @@ -1152,6 +1125,7 @@ CONFIG_SND_PCI=y CONFIG_SND_INTEL8X0=y # CONFIG_SND_INTEL8X0M is not set # CONFIG_SND_KORG1212 is not set +# CONFIG_SND_LX6464ES is not set # CONFIG_SND_MAESTRO3 is not set # CONFIG_SND_MIXART is not set # CONFIG_SND_NM256 is not set @@ -1196,7 +1170,7 @@ CONFIG_HID_BELKIN=y CONFIG_HID_CHERRY=y CONFIG_HID_CHICONY=y CONFIG_HID_CYPRESS=y -# CONFIG_DRAGONRISE_FF is not set +# CONFIG_HID_DRAGONRISE is not set CONFIG_HID_EZKEY=y # CONFIG_HID_KYE is not set CONFIG_HID_GYRATION=y @@ -1213,10 +1187,11 @@ CONFIG_HID_PETALYNX=y CONFIG_HID_SAMSUNG=y CONFIG_HID_SONY=y CONFIG_HID_SUNPLUS=y -# CONFIG_GREENASIA_FF is not set +# CONFIG_HID_GREENASIA is not set +# CONFIG_HID_SMARTJOYPLUS is not set # CONFIG_HID_TOPSEED is not set -CONFIG_THRUSTMASTER_FF=m -CONFIG_ZEROPLUS_FF=m +# CONFIG_HID_THRUSTMASTER is not set +# CONFIG_HID_ZEROPLUS is not set CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y @@ -1242,6 +1217,7 @@ CONFIG_USB_MON=y # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_ROOT_HUB_TT=y # CONFIG_USB_EHCI_TT_NEWSCHED is not set @@ -1251,9 +1227,9 @@ CONFIG_USB_EHCI_HCD_PPC_OF=y # CONFIG_USB_ISP116X_HCD is not set # CONFIG_USB_ISP1760_HCD is not set CONFIG_USB_OHCI_HCD=y -CONFIG_USB_OHCI_HCD_PPC_OF=y CONFIG_USB_OHCI_HCD_PPC_OF_BE=y CONFIG_USB_OHCI_HCD_PPC_OF_LE=y +CONFIG_USB_OHCI_HCD_PPC_OF=y CONFIG_USB_OHCI_HCD_PCI=y CONFIG_USB_OHCI_BIG_ENDIAN_DESC=y CONFIG_USB_OHCI_BIG_ENDIAN_MMIO=y @@ -1352,8 +1328,6 @@ CONFIG_EDAC=y # CONFIG_EDAC_DEBUG is not set CONFIG_EDAC_MM_EDAC=y CONFIG_EDAC_MPC85XX=y -# CONFIG_EDAC_AMD8131 is not set -# CONFIG_EDAC_AMD8111 is not set CONFIG_RTC_LIB=y CONFIG_RTC_CLASS=y CONFIG_RTC_HCTOSYS=y @@ -1385,6 +1359,7 @@ CONFIG_RTC_INTF_DEV=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # CONFIG_RTC_DRV_RX8581 is not set +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1425,6 +1400,10 @@ CONFIG_DMA_ENGINE=y # CONFIG_DMATEST is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1445,11 +1424,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1524,6 +1504,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y CONFIG_NFSD=y # CONFIG_NFSD_V3 is not set @@ -1628,6 +1609,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1658,6 +1640,9 @@ CONFIG_SCHED_DEBUG=y # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -1670,7 +1655,6 @@ CONFIG_DEBUG_INFO=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -1684,16 +1668,15 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set @@ -1702,9 +1685,13 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_KMEMCHECK is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set +# CONFIG_PPC_EMULATED_STATS is not set # CONFIG_CODE_PATCHING_SELFTEST is not set # CONFIG_FTR_FIXUP_SELFTEST is not set # CONFIG_MSI_BITMAP_SELFTEST is not set diff --git a/arch/powerpc/configs/mpc85xx_smp_defconfig b/arch/powerpc/configs/mpc85xx_smp_defconfig index 1aa1c508d60..db082ce5a1c 100644 --- a/arch/powerpc/configs/mpc85xx_smp_defconfig +++ b/arch/powerpc/configs/mpc85xx_smp_defconfig @@ -1,14 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc2 -# Tue Apr 21 15:41:18 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:31:56 2009 # # CONFIG_PPC64 is not set # # Processor support # -# CONFIG_6xx is not set +# CONFIG_PPC_BOOK3S_32 is not set CONFIG_PPC_85xx=y # CONFIG_PPC_8xx is not set # CONFIG_40x is not set @@ -35,15 +35,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_GPIO=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set @@ -58,11 +59,13 @@ CONFIG_PPC_UDBG_16550=y CONFIG_GENERIC_TBSYNC=y CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -117,7 +120,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y CONFIG_KALLSYMS_EXTRA_PASS=y -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -130,9 +132,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -148,6 +157,11 @@ CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_USE_GENERIC_SMP_HELPERS=y CONFIG_HAVE_CLK=y + +# +# GCOV-based kernel profiling +# +# CONFIG_GCOV_KERNEL is not set # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -161,7 +175,7 @@ CONFIG_MODVERSIONS=y # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_STOP_MACHINE=y CONFIG_BLOCK=y -CONFIG_LBD=y +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -194,6 +208,7 @@ CONFIG_MPC8536_DS=y CONFIG_MPC85xx_DS=y CONFIG_SOCRATES=y CONFIG_KSI8560=y +# CONFIG_XES_MPC85xx is not set CONFIG_STX_GP3=y CONFIG_TQM8540=y CONFIG_TQM8541=y @@ -244,7 +259,9 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set CONFIG_BINFMT_MISC=m CONFIG_MATH_EMULATION=y -# CONFIG_IOMMU_HELPER is not set +CONFIG_IOMMU_HELPER=y +CONFIG_SWIOTLB=y +CONFIG_PPC_NEED_DMA_SYNC_OPS=y CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -264,9 +281,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -300,7 +317,8 @@ CONFIG_ARCH_SUPPORTS_MSI=y # CONFIG_PCI_IOV is not set # CONFIG_PCCARD is not set # CONFIG_HOTPLUG_PCI is not set -# CONFIG_HAS_RAPIDIO is not set +CONFIG_HAS_RAPIDIO=y +# CONFIG_RAPIDIO is not set # # Advanced setup @@ -410,6 +428,7 @@ CONFIG_SCTP_HMAC_MD5=y # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -428,7 +447,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -454,6 +477,7 @@ CONFIG_EXTRA_FIRMWARE="" CONFIG_OF_DEVICE=y CONFIG_OF_GPIO=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -489,7 +513,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set CONFIG_EEPROM_LEGACY=y +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -513,10 +539,6 @@ CONFIG_BLK_DEV_SR=y # CONFIG_BLK_DEV_SR_VENDOR is not set CONFIG_CHR_DEV_SG=y # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# CONFIG_SCSI_MULTI_LUN=y # CONFIG_SCSI_CONSTANTS is not set CONFIG_SCSI_LOGGING=y @@ -534,6 +556,7 @@ CONFIG_SCSI_WAIT_SCAN=m CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set # CONFIG_SCSI_CXGB3_ISCSI is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -542,6 +565,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -561,7 +585,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set @@ -645,14 +668,17 @@ CONFIG_PATA_ALI=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y CONFIG_DUMMY=y # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -699,6 +725,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_FS_ENET=y CONFIG_FS_ENET_HAS_SCC=y @@ -722,11 +749,13 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y CONFIG_UCC_GETH=y # CONFIG_UGETH_MAGIC_PACKET is not set # CONFIG_UGETH_TX_ON_DEMAND is not set +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -901,6 +930,7 @@ CONFIG_I2C_HELPER_AUTO=y # I2C system bus drivers (mostly embedded / system-on-chip) # CONFIG_I2C_CPM=m +# CONFIG_I2C_DESIGNWARE is not set # CONFIG_I2C_GPIO is not set CONFIG_I2C_MPC=y # CONFIG_I2C_OCORES is not set @@ -931,13 +961,17 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_ARCH_REQUIRE_GPIOLIB=y CONFIG_GPIOLIB=y @@ -991,76 +1025,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -CONFIG_DVB_CORE=m -CONFIG_VIDEO_MEDIA=m - -# -# Multimedia drivers -# -# CONFIG_MEDIA_ATTACH is not set -CONFIG_MEDIA_TUNER=m -# CONFIG_MEDIA_TUNER_CUSTOMISE is not set -CONFIG_MEDIA_TUNER_SIMPLE=m -CONFIG_MEDIA_TUNER_TDA8290=m -CONFIG_MEDIA_TUNER_TDA9887=m -CONFIG_MEDIA_TUNER_TEA5761=m -CONFIG_MEDIA_TUNER_TEA5767=m -CONFIG_MEDIA_TUNER_MT20XX=m -CONFIG_MEDIA_TUNER_XC2028=m -CONFIG_MEDIA_TUNER_XC5000=m -CONFIG_MEDIA_TUNER_MC44S803=m -# CONFIG_DVB_DYNAMIC_MINORS is not set -CONFIG_DVB_CAPTURE_DRIVERS=y - -# -# Supported SAA7146 based PCI Adapters -# -# CONFIG_TTPCI_EEPROM is not set -# CONFIG_DVB_BUDGET_CORE is not set - -# -# Supported USB Adapters -# -# CONFIG_DVB_USB is not set -# CONFIG_DVB_TTUSB_BUDGET is not set -# CONFIG_DVB_TTUSB_DEC is not set -# CONFIG_DVB_SIANO_SMS1XXX is not set - -# -# Supported FlexCopII (B2C2) Adapters -# -# CONFIG_DVB_B2C2_FLEXCOP is not set - -# -# Supported BT878 Adapters -# - -# -# Supported Pluto2 Adapters -# -# CONFIG_DVB_PLUTO2 is not set - -# -# Supported SDMC DM1105 Adapters -# -# CONFIG_DVB_DM1105 is not set - -# -# Supported DVB Frontends -# -# CONFIG_DVB_FE_CUSTOMISE is not set -CONFIG_DAB=y -# CONFIG_USB_DABUSB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1100,6 +1067,11 @@ CONFIG_SND_VERBOSE_PROCFS=y # CONFIG_SND_VERBOSE_PRINTK is not set # CONFIG_SND_DEBUG is not set CONFIG_SND_VMASTER=y +# CONFIG_SND_RAWMIDI_SEQ is not set +# CONFIG_SND_OPL3_LIB_SEQ is not set +# CONFIG_SND_OPL4_LIB_SEQ is not set +# CONFIG_SND_SBAWE_SEQ is not set +# CONFIG_SND_EMU10K1_SEQ is not set CONFIG_SND_AC97_CODEC=y CONFIG_SND_DRIVERS=y # CONFIG_SND_DUMMY is not set @@ -1126,6 +1098,7 @@ CONFIG_SND_PCI=y # CONFIG_SND_CS4281 is not set # CONFIG_SND_CS46XX is not set # CONFIG_SND_CS5530 is not set +# CONFIG_SND_CTXFI is not set # CONFIG_SND_DARLA20 is not set # CONFIG_SND_GINA20 is not set # CONFIG_SND_LAYLA20 is not set @@ -1156,6 +1129,7 @@ CONFIG_SND_PCI=y CONFIG_SND_INTEL8X0=y # CONFIG_SND_INTEL8X0M is not set # CONFIG_SND_KORG1212 is not set +# CONFIG_SND_LX6464ES is not set # CONFIG_SND_MAESTRO3 is not set # CONFIG_SND_MIXART is not set # CONFIG_SND_NM256 is not set @@ -1200,7 +1174,7 @@ CONFIG_HID_BELKIN=y CONFIG_HID_CHERRY=y CONFIG_HID_CHICONY=y CONFIG_HID_CYPRESS=y -# CONFIG_DRAGONRISE_FF is not set +# CONFIG_HID_DRAGONRISE is not set CONFIG_HID_EZKEY=y # CONFIG_HID_KYE is not set CONFIG_HID_GYRATION=y @@ -1217,10 +1191,11 @@ CONFIG_HID_PETALYNX=y CONFIG_HID_SAMSUNG=y CONFIG_HID_SONY=y CONFIG_HID_SUNPLUS=y -# CONFIG_GREENASIA_FF is not set +# CONFIG_HID_GREENASIA is not set +# CONFIG_HID_SMARTJOYPLUS is not set # CONFIG_HID_TOPSEED is not set -CONFIG_THRUSTMASTER_FF=m -CONFIG_ZEROPLUS_FF=m +# CONFIG_HID_THRUSTMASTER is not set +# CONFIG_HID_ZEROPLUS is not set CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y @@ -1246,6 +1221,7 @@ CONFIG_USB_MON=y # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_ROOT_HUB_TT=y # CONFIG_USB_EHCI_TT_NEWSCHED is not set @@ -1255,9 +1231,9 @@ CONFIG_USB_EHCI_HCD_PPC_OF=y # CONFIG_USB_ISP116X_HCD is not set # CONFIG_USB_ISP1760_HCD is not set CONFIG_USB_OHCI_HCD=y -CONFIG_USB_OHCI_HCD_PPC_OF=y CONFIG_USB_OHCI_HCD_PPC_OF_BE=y CONFIG_USB_OHCI_HCD_PPC_OF_LE=y +CONFIG_USB_OHCI_HCD_PPC_OF=y CONFIG_USB_OHCI_HCD_PCI=y CONFIG_USB_OHCI_BIG_ENDIAN_DESC=y CONFIG_USB_OHCI_BIG_ENDIAN_MMIO=y @@ -1356,8 +1332,6 @@ CONFIG_EDAC=y # CONFIG_EDAC_DEBUG is not set CONFIG_EDAC_MM_EDAC=y CONFIG_EDAC_MPC85XX=y -# CONFIG_EDAC_AMD8131 is not set -# CONFIG_EDAC_AMD8111 is not set CONFIG_RTC_LIB=y CONFIG_RTC_CLASS=y CONFIG_RTC_HCTOSYS=y @@ -1389,6 +1363,7 @@ CONFIG_RTC_INTF_DEV=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # CONFIG_RTC_DRV_RX8581 is not set +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1429,6 +1404,10 @@ CONFIG_DMA_ENGINE=y # CONFIG_DMATEST is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1449,11 +1428,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1528,6 +1508,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y CONFIG_NFSD=y # CONFIG_NFSD_V3 is not set @@ -1632,6 +1613,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1662,6 +1644,9 @@ CONFIG_SCHED_DEBUG=y # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -1674,7 +1659,6 @@ CONFIG_DEBUG_INFO=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -1688,16 +1672,15 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set @@ -1706,9 +1689,13 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_KMEMCHECK is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set +# CONFIG_PPC_EMULATED_STATS is not set # CONFIG_CODE_PATCHING_SELFTEST is not set # CONFIG_FTR_FIXUP_SELFTEST is not set # CONFIG_MSI_BITMAP_SELFTEST is not set diff --git a/arch/powerpc/configs/mpc866_ads_defconfig b/arch/powerpc/configs/mpc866_ads_defconfig index 3add6f62b21..6809b61ed3d 100644 --- a/arch/powerpc/configs/mpc866_ads_defconfig +++ b/arch/powerpc/configs/mpc866_ads_defconfig @@ -1,14 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:00 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:31:57 2009 # # CONFIG_PPC64 is not set # # Processor support # -# CONFIG_6xx is not set +# CONFIG_PPC_BOOK3S_32 is not set # CONFIG_PPC_85xx is not set CONFIG_PPC_8xx=y # CONFIG_40x is not set @@ -27,15 +27,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -48,11 +49,13 @@ CONFIG_OF=y # CONFIG_PPC_UDBG_16550 is not set # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y +CONFIG_DTC=y # CONFIG_DEFAULT_UIMAGE is not set # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -98,7 +101,6 @@ CONFIG_EMBEDDED=y # CONFIG_SYSCTL_SYSCALL is not set CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set # CONFIG_HOTPLUG is not set CONFIG_PRINTK=y # CONFIG_BUG is not set @@ -111,8 +113,15 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set # CONFIG_VM_EVENT_COUNTERS is not set CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -126,6 +135,10 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_CLK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -133,7 +146,7 @@ CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=1 # CONFIG_MODULES is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -219,6 +232,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set CONFIG_MATH_EMULATION=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_PPC_NEED_DMA_SYNC_OPS=y CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y @@ -238,9 +252,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -278,6 +292,7 @@ CONFIG_PAGE_OFFSET=0xc0000000 CONFIG_KERNEL_START=0xc0000000 CONFIG_PHYSICAL_START=0x00000000 CONFIG_TASK_SIZE=0x80000000 +CONFIG_CONSISTENT_SIZE=0x00200000 CONFIG_NET=y # @@ -339,6 +354,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -356,7 +372,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -374,6 +394,7 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y # CONFIG_CONNECTOR is not set # CONFIG_MTD is not set CONFIG_OF_DEVICE=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -407,7 +428,6 @@ CONFIG_HAVE_IDE=y # CONFIG_MD is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -446,6 +466,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set CONFIG_FS_ENET=y CONFIG_FS_ENET_HAS_SCC=y CONFIG_FS_ENET_HAS_FEC=y @@ -453,6 +474,7 @@ CONFIG_FS_ENET_MDIO_FEC=y CONFIG_NETDEV_1000=y # CONFIG_FSL_PQ_MDIO is not set # CONFIG_GIANFAR is not set +# CONFIG_MV643XX_ETH is not set CONFIG_NETDEV_10000=y # @@ -496,11 +518,11 @@ CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 # CONFIG_INPUT_KEYBOARD=y CONFIG_KEYBOARD_ATKBD=y -# CONFIG_KEYBOARD_SUNKBD is not set # CONFIG_KEYBOARD_LKKBD is not set -# CONFIG_KEYBOARD_XTKBD is not set # CONFIG_KEYBOARD_NEWTON is not set # CONFIG_KEYBOARD_STOWAWAY is not set +# CONFIG_KEYBOARD_SUNKBD is not set +# CONFIG_KEYBOARD_XTKBD is not set CONFIG_INPUT_MOUSE=y CONFIG_MOUSE_PS2=y CONFIG_MOUSE_PS2_ALPS=y @@ -562,6 +584,11 @@ CONFIG_GEN_RTC=y # CONFIG_TCG_TPM is not set # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -597,22 +624,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -664,6 +676,10 @@ CONFIG_USB_SUPPORT=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -685,10 +701,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -808,6 +826,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -831,22 +850,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_PPC_EARLY_DEBUG is not set diff --git a/arch/powerpc/configs/mpc86xx_defconfig b/arch/powerpc/configs/mpc86xx_defconfig index 5bb1b8eb0b4..0e8684a3138 100644 --- a/arch/powerpc/configs/mpc86xx_defconfig +++ b/arch/powerpc/configs/mpc86xx_defconfig @@ -1,26 +1,28 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:00 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:31:58 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_PHYS_64BIT is not set CONFIG_ALTIVEC=y CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y CONFIG_SMP=y CONFIG_NR_CPUS=2 CONFIG_PPC32=y @@ -32,15 +34,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_GPIO=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set @@ -55,11 +58,13 @@ CONFIG_PPC_UDBG_16550=y CONFIG_GENERIC_TBSYNC=y CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -114,7 +119,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y CONFIG_KALLSYMS_EXTRA_PASS=y -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -127,9 +131,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -144,6 +155,10 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_USE_GENERIC_SMP_HELPERS=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -157,7 +172,7 @@ CONFIG_MODVERSIONS=y # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_STOP_MACHINE=y CONFIG_BLOCK=y -CONFIG_LBD=y +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -236,7 +251,9 @@ CONFIG_BINFMT_ELF=y # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set # CONFIG_HAVE_AOUT is not set CONFIG_BINFMT_MISC=m -# CONFIG_IOMMU_HELPER is not set +CONFIG_IOMMU_HELPER=y +CONFIG_SWIOTLB=y +CONFIG_PPC_NEED_DMA_SYNC_OPS=y CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -258,9 +275,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -403,6 +420,7 @@ CONFIG_SCTP_HMAC_MD5=y # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -421,7 +439,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -447,6 +469,7 @@ CONFIG_EXTRA_FIRMWARE="" CONFIG_OF_DEVICE=y CONFIG_OF_GPIO=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -482,7 +505,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set CONFIG_EEPROM_LEGACY=y +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -506,10 +531,6 @@ CONFIG_BLK_DEV_SR=y # CONFIG_BLK_DEV_SR_VENDOR is not set CONFIG_CHR_DEV_SG=y # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# CONFIG_SCSI_MULTI_LUN=y # CONFIG_SCSI_CONSTANTS is not set CONFIG_SCSI_LOGGING=y @@ -527,6 +548,7 @@ CONFIG_SCSI_WAIT_SCAN=m CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set # CONFIG_SCSI_CXGB3_ISCSI is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -535,6 +557,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -554,7 +577,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set @@ -638,14 +660,17 @@ CONFIG_PATA_ALI=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y CONFIG_DUMMY=y # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -692,6 +717,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set @@ -711,8 +737,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_FSL_PQ_MDIO=y CONFIG_GIANFAR=y +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -913,13 +941,17 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_ARCH_REQUIRE_GPIOLIB=y CONFIG_GPIOLIB=y @@ -973,76 +1005,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -CONFIG_DVB_CORE=m -CONFIG_VIDEO_MEDIA=m - -# -# Multimedia drivers -# -# CONFIG_MEDIA_ATTACH is not set -CONFIG_MEDIA_TUNER=m -# CONFIG_MEDIA_TUNER_CUSTOMISE is not set -CONFIG_MEDIA_TUNER_SIMPLE=m -CONFIG_MEDIA_TUNER_TDA8290=m -CONFIG_MEDIA_TUNER_TDA9887=m -CONFIG_MEDIA_TUNER_TEA5761=m -CONFIG_MEDIA_TUNER_TEA5767=m -CONFIG_MEDIA_TUNER_MT20XX=m -CONFIG_MEDIA_TUNER_XC2028=m -CONFIG_MEDIA_TUNER_XC5000=m -CONFIG_MEDIA_TUNER_MC44S803=m -# CONFIG_DVB_DYNAMIC_MINORS is not set -CONFIG_DVB_CAPTURE_DRIVERS=y - -# -# Supported SAA7146 based PCI Adapters -# -# CONFIG_TTPCI_EEPROM is not set -# CONFIG_DVB_BUDGET_CORE is not set - -# -# Supported USB Adapters -# -# CONFIG_DVB_USB is not set -# CONFIG_DVB_TTUSB_BUDGET is not set -# CONFIG_DVB_TTUSB_DEC is not set -# CONFIG_DVB_SIANO_SMS1XXX is not set - -# -# Supported FlexCopII (B2C2) Adapters -# -# CONFIG_DVB_B2C2_FLEXCOP is not set - -# -# Supported BT878 Adapters -# - -# -# Supported Pluto2 Adapters -# -# CONFIG_DVB_PLUTO2 is not set - -# -# Supported SDMC DM1105 Adapters -# -# CONFIG_DVB_DM1105 is not set - -# -# Supported DVB Frontends -# -# CONFIG_DVB_FE_CUSTOMISE is not set -CONFIG_DAB=y -# CONFIG_USB_DABUSB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1082,6 +1047,11 @@ CONFIG_SND_VERBOSE_PROCFS=y # CONFIG_SND_VERBOSE_PRINTK is not set # CONFIG_SND_DEBUG is not set CONFIG_SND_VMASTER=y +# CONFIG_SND_RAWMIDI_SEQ is not set +# CONFIG_SND_OPL3_LIB_SEQ is not set +# CONFIG_SND_OPL4_LIB_SEQ is not set +# CONFIG_SND_SBAWE_SEQ is not set +# CONFIG_SND_EMU10K1_SEQ is not set CONFIG_SND_AC97_CODEC=y CONFIG_SND_DRIVERS=y # CONFIG_SND_DUMMY is not set @@ -1108,6 +1078,7 @@ CONFIG_SND_PCI=y # CONFIG_SND_CS4281 is not set # CONFIG_SND_CS46XX is not set # CONFIG_SND_CS5530 is not set +# CONFIG_SND_CTXFI is not set # CONFIG_SND_DARLA20 is not set # CONFIG_SND_GINA20 is not set # CONFIG_SND_LAYLA20 is not set @@ -1138,6 +1109,7 @@ CONFIG_SND_PCI=y CONFIG_SND_INTEL8X0=y # CONFIG_SND_INTEL8X0M is not set # CONFIG_SND_KORG1212 is not set +# CONFIG_SND_LX6464ES is not set # CONFIG_SND_MAESTRO3 is not set # CONFIG_SND_MIXART is not set # CONFIG_SND_NM256 is not set @@ -1182,7 +1154,7 @@ CONFIG_HID_BELKIN=y CONFIG_HID_CHERRY=y CONFIG_HID_CHICONY=y CONFIG_HID_CYPRESS=y -# CONFIG_DRAGONRISE_FF is not set +# CONFIG_HID_DRAGONRISE is not set CONFIG_HID_EZKEY=y # CONFIG_HID_KYE is not set CONFIG_HID_GYRATION=y @@ -1199,10 +1171,11 @@ CONFIG_HID_PETALYNX=y CONFIG_HID_SAMSUNG=y CONFIG_HID_SONY=y CONFIG_HID_SUNPLUS=y -# CONFIG_GREENASIA_FF is not set +# CONFIG_HID_GREENASIA is not set +# CONFIG_HID_SMARTJOYPLUS is not set # CONFIG_HID_TOPSEED is not set -CONFIG_THRUSTMASTER_FF=m -CONFIG_ZEROPLUS_FF=m +# CONFIG_HID_THRUSTMASTER is not set +# CONFIG_HID_ZEROPLUS is not set CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y @@ -1228,6 +1201,7 @@ CONFIG_USB_MON=y # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set CONFIG_USB_EHCI_HCD=y # CONFIG_USB_EHCI_ROOT_HUB_TT is not set # CONFIG_USB_EHCI_TT_NEWSCHED is not set @@ -1237,9 +1211,9 @@ CONFIG_USB_EHCI_HCD_PPC_OF=y # CONFIG_USB_ISP116X_HCD is not set # CONFIG_USB_ISP1760_HCD is not set CONFIG_USB_OHCI_HCD=y -CONFIG_USB_OHCI_HCD_PPC_OF=y CONFIG_USB_OHCI_HCD_PPC_OF_BE=y CONFIG_USB_OHCI_HCD_PPC_OF_LE=y +CONFIG_USB_OHCI_HCD_PPC_OF=y CONFIG_USB_OHCI_HCD_PCI=y CONFIG_USB_OHCI_BIG_ENDIAN_DESC=y CONFIG_USB_OHCI_BIG_ENDIAN_MMIO=y @@ -1360,6 +1334,7 @@ CONFIG_RTC_INTF_DEV=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # CONFIG_RTC_DRV_RX8581 is not set +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1387,6 +1362,10 @@ CONFIG_RTC_DRV_CMOS=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1406,11 +1385,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1485,6 +1465,7 @@ CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_NFS_V3_ACL is not set CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set CONFIG_ROOT_NFS=y CONFIG_NFSD=y # CONFIG_NFSD_V3 is not set @@ -1586,6 +1567,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1616,6 +1598,9 @@ CONFIG_SCHED_DEBUG=y # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -1628,7 +1613,6 @@ CONFIG_DEBUG_INFO=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -1642,16 +1626,15 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set @@ -1659,6 +1642,9 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_KMEMCHECK is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set diff --git a/arch/powerpc/configs/mpc885_ads_defconfig b/arch/powerpc/configs/mpc885_ads_defconfig index 42e64ebc279..dbe8e869a82 100644 --- a/arch/powerpc/configs/mpc885_ads_defconfig +++ b/arch/powerpc/configs/mpc885_ads_defconfig @@ -1,14 +1,14 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:01 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:31:59 2009 # # CONFIG_PPC64 is not set # # Processor support # -# CONFIG_6xx is not set +# CONFIG_PPC_BOOK3S_32 is not set # CONFIG_PPC_85xx is not set CONFIG_PPC_8xx=y # CONFIG_40x is not set @@ -27,15 +27,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -49,11 +50,13 @@ CONFIG_OF=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y # CONFIG_DEFAULT_UIMAGE is not set # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -100,7 +103,6 @@ CONFIG_EMBEDDED=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -113,8 +115,15 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set # CONFIG_VM_EVENT_COUNTERS is not set CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -128,13 +137,17 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_CLK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y CONFIG_BASE_SMALL=1 # CONFIG_MODULES is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -227,6 +240,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_MATH_EMULATION is not set CONFIG_8XX_MINIMAL_FPEMU=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_PPC_NEED_DMA_SYNC_OPS=y CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y @@ -246,9 +260,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -287,6 +301,7 @@ CONFIG_PAGE_OFFSET=0xc0000000 CONFIG_KERNEL_START=0xc0000000 CONFIG_PHYSICAL_START=0x00000000 CONFIG_TASK_SIZE=0x80000000 +CONFIG_CONSISTENT_SIZE=0x00200000 CONFIG_NET=y # @@ -343,6 +358,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -360,7 +376,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -463,6 +483,7 @@ CONFIG_MTD_PHYSMAP_OF=y # # CONFIG_MTD_UBI is not set CONFIG_OF_DEVICE=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set # CONFIG_BLK_DEV is not set # CONFIG_MISC_DEVICES is not set @@ -480,7 +501,6 @@ CONFIG_HAVE_IDE=y # CONFIG_MD is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -519,6 +539,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set CONFIG_FS_ENET=y # CONFIG_FS_ENET_HAS_SCC is not set CONFIG_FS_ENET_HAS_FEC=y @@ -590,6 +611,11 @@ CONFIG_GEN_RTC=y # CONFIG_TCG_TPM is not set # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -613,22 +639,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -653,6 +664,10 @@ CONFIG_DAB=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -664,12 +679,15 @@ CONFIG_DAB=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y # CONFIG_DNOTIFY is not set # CONFIG_INOTIFY is not set +CONFIG_INOTIFY_USER=y # CONFIG_QUOTA is not set # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS is not set @@ -786,6 +804,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -814,6 +833,9 @@ CONFIG_SCHED_DEBUG=y # CONFIG_SLUB_STATS is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -825,7 +847,6 @@ CONFIG_DEBUG_INFO=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -838,16 +859,15 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set @@ -855,6 +875,9 @@ CONFIG_TRACING_SUPPORT=y # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set +# CONFIG_KMEMCHECK is not set +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set diff --git a/arch/powerpc/configs/pq2fads_defconfig b/arch/powerpc/configs/pq2fads_defconfig index 129d80860f2..ff96bb43c32 100644 --- a/arch/powerpc/configs/pq2fads_defconfig +++ b/arch/powerpc/configs/pq2fads_defconfig @@ -1,25 +1,27 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:02 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:00 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_ALTIVEC is not set CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -30,15 +32,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_GPIO=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set @@ -53,11 +56,13 @@ CONFIG_OF=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y CONFIG_DEFAULT_UIMAGE=y # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -103,7 +108,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -116,9 +120,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -132,6 +143,10 @@ CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_CLK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -139,7 +154,7 @@ CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 # CONFIG_MODULES is not set CONFIG_BLOCK=y -# CONFIG_LBD is not set +CONFIG_LBDAF=y # CONFIG_BLK_DEV_INTEGRITY is not set # @@ -219,6 +234,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set CONFIG_BINFMT_MISC=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -234,9 +250,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -307,6 +323,7 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_NET_IPIP is not set # CONFIG_NET_IPGRE is not set # CONFIG_IP_MROUTE is not set +# CONFIG_ARPD is not set CONFIG_SYN_COOKIES=y # CONFIG_INET_AH is not set # CONFIG_INET_ESP is not set @@ -387,7 +404,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set @@ -493,6 +514,7 @@ CONFIG_MTD_PHYSMAP_OF=y # CONFIG_MTD_UBI is not set CONFIG_OF_DEVICE=y CONFIG_OF_GPIO=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -518,6 +540,7 @@ CONFIG_MISC_DEVICES=y # EEPROM support # # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y CONFIG_IDE=y @@ -583,13 +606,17 @@ CONFIG_IDE_PROC_FS=y # # -# A new alternative FireWire stack is available with EXPERIMENTAL=y +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # +# CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_EQUALIZER is not set @@ -636,6 +663,7 @@ CONFIG_MII=y # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set # CONFIG_NET_PCI is not set # CONFIG_B44 is not set +# CONFIG_KS8842 is not set # CONFIG_ATL2 is not set CONFIG_FS_ENET=y # CONFIG_FS_ENET_HAS_SCC is not set @@ -657,8 +685,10 @@ CONFIG_NETDEV_1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set # CONFIG_FSL_PQ_MDIO is not set # CONFIG_GIANFAR is not set +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_JME is not set @@ -730,12 +760,13 @@ CONFIG_INPUT_EVDEV=y # CONFIG_INPUT_KEYBOARD=y CONFIG_KEYBOARD_ATKBD=y -# CONFIG_KEYBOARD_SUNKBD is not set # CONFIG_KEYBOARD_LKKBD is not set -# CONFIG_KEYBOARD_XTKBD is not set +# CONFIG_KEYBOARD_GPIO is not set +# CONFIG_KEYBOARD_MATRIX is not set # CONFIG_KEYBOARD_NEWTON is not set # CONFIG_KEYBOARD_STOWAWAY is not set -# CONFIG_KEYBOARD_GPIO is not set +# CONFIG_KEYBOARD_SUNKBD is not set +# CONFIG_KEYBOARD_XTKBD is not set CONFIG_INPUT_MOUSE=y CONFIG_MOUSE_PS2=y CONFIG_MOUSE_PS2_ALPS=y @@ -802,6 +833,10 @@ CONFIG_HW_RANDOM=y CONFIG_DEVPORT=y # CONFIG_I2C is not set # CONFIG_SPI is not set + +# +# PPS support +# CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_ARCH_REQUIRE_GPIOLIB=y CONFIG_GPIOLIB=y @@ -845,22 +880,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_HTC_PASIC3 is not set # CONFIG_MFD_TMIO is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -CONFIG_DAB=y +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -903,8 +923,9 @@ CONFIG_USB_GADGET_SELECTED=y # CONFIG_USB_GADGET_OMAP is not set # CONFIG_USB_GADGET_PXA25X is not set # CONFIG_USB_GADGET_PXA27X is not set -# CONFIG_USB_GADGET_S3C2410 is not set +# CONFIG_USB_GADGET_S3C_HSOTG is not set # CONFIG_USB_GADGET_IMX is not set +# CONFIG_USB_GADGET_S3C2410 is not set CONFIG_USB_GADGET_M66592=y CONFIG_USB_M66592=y # CONFIG_USB_GADGET_AMD5536UDC is not set @@ -912,9 +933,11 @@ CONFIG_USB_M66592=y # CONFIG_USB_GADGET_CI13XXX is not set # CONFIG_USB_GADGET_NET2280 is not set # CONFIG_USB_GADGET_GOKU is not set +# CONFIG_USB_GADGET_LANGWELL is not set # CONFIG_USB_GADGET_DUMMY_HCD is not set CONFIG_USB_GADGET_DUALSPEED=y # CONFIG_USB_ZERO is not set +# CONFIG_USB_AUDIO is not set CONFIG_USB_ETH=y CONFIG_USB_ETH_RNDIS=y # CONFIG_USB_GADGETFS is not set @@ -939,6 +962,10 @@ CONFIG_USB_ETH_RNDIS=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -958,9 +985,10 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set CONFIG_FS_POSIX_ACL=y -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set # CONFIG_OCFS2_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1110,6 +1138,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1140,6 +1169,9 @@ CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0 # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set @@ -1151,7 +1183,6 @@ CONFIG_DEBUG_INFO=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set @@ -1165,22 +1196,23 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set +# CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set +# CONFIG_ENABLE_DEFAULT_TRACERS is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set # CONFIG_BLK_DEV_IO_TRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set diff --git a/arch/powerpc/configs/prpmc2800_defconfig b/arch/powerpc/configs/prpmc2800_defconfig index e9f287f313f..1293c465d7f 100644 --- a/arch/powerpc/configs/prpmc2800_defconfig +++ b/arch/powerpc/configs/prpmc2800_defconfig @@ -1,25 +1,27 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:03 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:01 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y CONFIG_ALTIVEC=y CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_NOT_COHERENT_CACHE=y CONFIG_CHECK_CACHE_COHERENCY=y @@ -32,15 +34,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -54,11 +57,13 @@ CONFIG_OF=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y # CONFIG_DEFAULT_UIMAGE is not set # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -114,7 +119,6 @@ CONFIG_ANON_INODES=y CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -127,9 +131,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -142,6 +153,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -149,7 +164,7 @@ CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 # CONFIG_MODULES is not set CONFIG_BLOCK=y -CONFIG_LBD=y +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -228,6 +243,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set CONFIG_BINFMT_MISC=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_PPC_NEED_DMA_SYNC_OPS=y CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y @@ -249,9 +265,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -296,6 +312,7 @@ CONFIG_PAGE_OFFSET=0xc0000000 CONFIG_KERNEL_START=0xc0000000 CONFIG_PHYSICAL_START=0x00000000 CONFIG_TASK_SIZE=0xc0000000 +CONFIG_CONSISTENT_SIZE=0x00200000 CONFIG_NET=y # @@ -357,6 +374,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -374,7 +392,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -479,6 +501,7 @@ CONFIG_MTD_PHYSMAP_OF=y # CONFIG_MTD_UBI is not set CONFIG_OF_DEVICE=y CONFIG_OF_I2C=y +CONFIG_OF_MDIO=y # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -514,7 +537,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y CONFIG_IDE=y @@ -591,10 +616,6 @@ CONFIG_BLK_DEV_SD=y # CONFIG_BLK_DEV_SR is not set # CONFIG_CHR_DEV_SG is not set # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -611,6 +632,7 @@ CONFIG_BLK_DEV_SD=y CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set # CONFIG_SCSI_CXGB3_ISCSI is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -619,6 +641,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -638,7 +661,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set @@ -721,7 +743,11 @@ CONFIG_SATA_MV=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set @@ -730,7 +756,6 @@ CONFIG_MACINTOSH_DRIVERS=y # CONFIG_MAC_EMUMOUSEBTN is not set # CONFIG_WINDFARM is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -797,6 +822,7 @@ CONFIG_8139TOO=y # CONFIG_SMSC9420 is not set # CONFIG_SUNDANCE is not set # CONFIG_TLAN is not set +# CONFIG_KS8842 is not set # CONFIG_VIA_RHINE is not set # CONFIG_SC92031 is not set # CONFIG_ATL2 is not set @@ -818,6 +844,7 @@ CONFIG_E1000=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set CONFIG_MV643XX_ETH=y # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set @@ -1007,13 +1034,17 @@ CONFIG_I2C_MV64XXX=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -1068,6 +1099,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_ADS7828 is not set # CONFIG_SENSORS_THMC50 is not set +# CONFIG_SENSORS_TMP401 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_SENSORS_VT8231 is not set @@ -1102,23 +1134,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -# CONFIG_DAB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -1163,6 +1181,7 @@ CONFIG_HID_BELKIN=y CONFIG_HID_CHERRY=y CONFIG_HID_CHICONY=y CONFIG_HID_CYPRESS=y +CONFIG_HID_DRAGONRISE=y # CONFIG_DRAGONRISE_FF is not set CONFIG_HID_EZKEY=y CONFIG_HID_KYE=y @@ -1180,9 +1199,14 @@ CONFIG_HID_PETALYNX=y CONFIG_HID_SAMSUNG=y CONFIG_HID_SONY=y CONFIG_HID_SUNPLUS=y +CONFIG_HID_GREENASIA=y # CONFIG_GREENASIA_FF is not set +CONFIG_HID_SMARTJOYPLUS=y +# CONFIG_SMARTJOYPLUS_FF is not set CONFIG_HID_TOPSEED=y +CONFIG_HID_THRUSTMASTER=y CONFIG_THRUSTMASTER_FF=y +CONFIG_HID_ZEROPLUS=y CONFIG_ZEROPLUS_FF=y CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y @@ -1207,6 +1231,7 @@ CONFIG_USB_MON=y # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set CONFIG_USB_EHCI_HCD=y # CONFIG_USB_EHCI_ROOT_HUB_TT is not set # CONFIG_USB_EHCI_TT_NEWSCHED is not set @@ -1215,6 +1240,8 @@ CONFIG_USB_EHCI_HCD_PPC_OF=y # CONFIG_USB_ISP116X_HCD is not set # CONFIG_USB_ISP1760_HCD is not set CONFIG_USB_OHCI_HCD=y +# CONFIG_USB_OHCI_HCD_PPC_OF_BE is not set +# CONFIG_USB_OHCI_HCD_PPC_OF_LE is not set # CONFIG_USB_OHCI_HCD_PPC_OF is not set # CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set # CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set @@ -1322,6 +1349,7 @@ CONFIG_RTC_DRV_MAX6900=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # CONFIG_RTC_DRV_RX8581 is not set +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1349,6 +1377,10 @@ CONFIG_RTC_DRV_MAX6900=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1368,11 +1400,12 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1469,7 +1502,46 @@ CONFIG_MSDOS_PARTITION=y # CONFIG_KARMA_PARTITION is not set # CONFIG_EFI_PARTITION is not set # CONFIG_SYSV68_PARTITION is not set -# CONFIG_NLS is not set +CONFIG_NLS=y +CONFIG_NLS_DEFAULT="iso8859-1" +# CONFIG_NLS_CODEPAGE_437 is not set +# CONFIG_NLS_CODEPAGE_737 is not set +# CONFIG_NLS_CODEPAGE_775 is not set +# CONFIG_NLS_CODEPAGE_850 is not set +# CONFIG_NLS_CODEPAGE_852 is not set +# CONFIG_NLS_CODEPAGE_855 is not set +# CONFIG_NLS_CODEPAGE_857 is not set +# CONFIG_NLS_CODEPAGE_860 is not set +# CONFIG_NLS_CODEPAGE_861 is not set +# CONFIG_NLS_CODEPAGE_862 is not set +# CONFIG_NLS_CODEPAGE_863 is not set +# CONFIG_NLS_CODEPAGE_864 is not set +# CONFIG_NLS_CODEPAGE_865 is not set +# CONFIG_NLS_CODEPAGE_866 is not set +# CONFIG_NLS_CODEPAGE_869 is not set +# CONFIG_NLS_CODEPAGE_936 is not set +# CONFIG_NLS_CODEPAGE_950 is not set +# CONFIG_NLS_CODEPAGE_932 is not set +# CONFIG_NLS_CODEPAGE_949 is not set +# CONFIG_NLS_CODEPAGE_874 is not set +# CONFIG_NLS_ISO8859_8 is not set +# CONFIG_NLS_CODEPAGE_1250 is not set +# CONFIG_NLS_CODEPAGE_1251 is not set +# CONFIG_NLS_ASCII is not set +# CONFIG_NLS_ISO8859_1 is not set +# CONFIG_NLS_ISO8859_2 is not set +# CONFIG_NLS_ISO8859_3 is not set +# CONFIG_NLS_ISO8859_4 is not set +# CONFIG_NLS_ISO8859_5 is not set +# CONFIG_NLS_ISO8859_6 is not set +# CONFIG_NLS_ISO8859_7 is not set +# CONFIG_NLS_ISO8859_9 is not set +# CONFIG_NLS_ISO8859_13 is not set +# CONFIG_NLS_ISO8859_14 is not set +# CONFIG_NLS_ISO8859_15 is not set +# CONFIG_NLS_KOI8_R is not set +# CONFIG_NLS_KOI8_U is not set +# CONFIG_NLS_UTF8 is not set # CONFIG_DLM is not set # CONFIG_BINARY_PRINTF is not set @@ -1494,6 +1566,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1519,22 +1592,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_BOOTX_TEXT is not set diff --git a/arch/powerpc/configs/storcenter_defconfig b/arch/powerpc/configs/storcenter_defconfig index bd4a8d435c5..28384dc0100 100644 --- a/arch/powerpc/configs/storcenter_defconfig +++ b/arch/powerpc/configs/storcenter_defconfig @@ -1,25 +1,27 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc3 -# Wed May 13 17:22:04 2009 +# Linux kernel version: 2.6.31-rc4 +# Wed Jul 29 23:32:01 2009 # # CONFIG_PPC64 is not set # # Processor support # -CONFIG_6xx=y +CONFIG_PPC_BOOK3S_32=y # CONFIG_PPC_85xx is not set # CONFIG_PPC_8xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_E200 is not set CONFIG_PPC_BOOK3S=y +CONFIG_6xx=y CONFIG_PPC_FPU=y # CONFIG_ALTIVEC is not set CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_PPC_MM_SLICES is not set +CONFIG_PPC_HAVE_PMU_SUPPORT=y # CONFIG_SMP is not set CONFIG_PPC32=y CONFIG_WORD_SIZE=32 @@ -30,15 +32,16 @@ CONFIG_GENERIC_TIME=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y # CONFIG_HAVE_SETUP_PER_CPU_AREA is not set CONFIG_IRQ_PER_CPU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_ILOG2_U32=y CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_ARCH_NO_VIRT_TO_BUS is not set CONFIG_PPC=y @@ -52,11 +55,13 @@ CONFIG_PPC_UDBG_16550=y # CONFIG_GENERIC_TBSYNC is not set CONFIG_AUDIT_ARCH=y CONFIG_GENERIC_BUG=y +CONFIG_DTC=y # CONFIG_DEFAULT_UIMAGE is not set # CONFIG_PPC_DCR_NATIVE is not set # CONFIG_PPC_DCR_MMIO is not set CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_CONSTRUCTORS=y # # General setup @@ -101,7 +106,6 @@ CONFIG_ANON_INODES=y CONFIG_EMBEDDED=y CONFIG_SYSCTL_SYSCALL=y # CONFIG_KALLSYMS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -114,9 +118,16 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y + +# +# Performance Counters +# +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set CONFIG_COMPAT_BRK=y # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -129,6 +140,10 @@ CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y + +# +# GCOV-based kernel profiling +# # CONFIG_SLOW_WORK is not set # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y @@ -141,7 +156,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_BLOCK=y -CONFIG_LBD=y +CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_BLK_DEV_INTEGRITY is not set @@ -222,6 +237,7 @@ CONFIG_BINFMT_ELF=y # CONFIG_HAVE_AOUT is not set CONFIG_BINFMT_MISC=y # CONFIG_IOMMU_HELPER is not set +# CONFIG_SWIOTLB is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_ARCH_HAS_WALK_MEMORY=y CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y @@ -242,9 +258,9 @@ CONFIG_MIGRATION=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_PPC_4K_PAGES=y # CONFIG_PPC_16K_PAGES is not set # CONFIG_PPC_64K_PAGES is not set @@ -347,6 +363,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -364,7 +381,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -501,7 +522,9 @@ CONFIG_MISC_DEVICES=y # # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set +# CONFIG_EEPROM_MAX6875 is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y CONFIG_IDE=y @@ -579,10 +602,6 @@ CONFIG_BLK_DEV_SR=y # CONFIG_BLK_DEV_SR_VENDOR is not set # CONFIG_CHR_DEV_SG is not set # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set @@ -599,6 +618,7 @@ CONFIG_SCSI_SPI_ATTRS=y # CONFIG_SCSI_SRP_ATTRS is not set CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -607,6 +627,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_ARCMSR is not set @@ -626,7 +647,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_QLOGIC_1280 is not set @@ -660,14 +680,17 @@ CONFIG_MD_RAID6_PQ=y # # -# Enable only one of the two stacks, unless you know what you are doing +# You can enable one or both FireWire driver stacks. +# + +# +# See the help texts for more information. # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set # CONFIG_MACINTOSH_DRIVERS is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y CONFIG_DUMMY=m # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -695,8 +718,10 @@ CONFIG_R8169=y # CONFIG_VIA_VELOCITY is not set # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set +# CONFIG_CNIC is not set # CONFIG_FSL_PQ_MDIO is not set # CONFIG_GIANFAR is not set +# CONFIG_MV643XX_ETH is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set # CONFIG_ATL1E is not set @@ -845,13 +870,17 @@ CONFIG_I2C_MPC=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y # CONFIG_GPIOLIB is not set # CONFIG_W1 is not set @@ -879,23 +908,9 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set # CONFIG_MFD_PCF50633 is not set +# CONFIG_AB3100_CORE is not set # CONFIG_REGULATOR is not set - -# -# Multimedia devices -# - -# -# Multimedia core support -# -# CONFIG_VIDEO_DEV is not set -# CONFIG_DVB_CORE is not set -# CONFIG_VIDEO_MEDIA is not set - -# -# Multimedia drivers -# -# CONFIG_DAB is not set +# CONFIG_MEDIA_SUPPORT is not set # # Graphics support @@ -937,6 +952,7 @@ CONFIG_USB_DEVICE_CLASS=y # USB Host Controller Drivers # # CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_XHCI_HCD is not set CONFIG_USB_EHCI_HCD=y # CONFIG_USB_EHCI_ROOT_HUB_TT is not set # CONFIG_USB_EHCI_TT_NEWSCHED is not set @@ -946,6 +962,8 @@ CONFIG_USB_EHCI_HCD_PPC_OF=y # CONFIG_USB_ISP116X_HCD is not set # CONFIG_USB_ISP1760_HCD is not set CONFIG_USB_OHCI_HCD=y +# CONFIG_USB_OHCI_HCD_PPC_OF_BE is not set +# CONFIG_USB_OHCI_HCD_PPC_OF_LE is not set # CONFIG_USB_OHCI_HCD_PPC_OF is not set # CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set # CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set @@ -1064,6 +1082,7 @@ CONFIG_RTC_DRV_DS1307=y # CONFIG_RTC_DRV_S35390A is not set # CONFIG_RTC_DRV_FM3130 is not set # CONFIG_RTC_DRV_RX8581 is not set +# CONFIG_RTC_DRV_RX8025 is not set # # SPI RTC drivers @@ -1091,6 +1110,10 @@ CONFIG_RTC_DRV_DS1307=y # CONFIG_DMADEVICES is not set # CONFIG_AUXDISPLAY is not set # CONFIG_UIO is not set + +# +# TI VLYNQ +# # CONFIG_STAGING is not set # @@ -1110,7 +1133,6 @@ CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set -CONFIG_FILE_LOCKING=y CONFIG_XFS_FS=m # CONFIG_XFS_QUOTA is not set # CONFIG_XFS_POSIX_ACL is not set @@ -1119,6 +1141,8 @@ CONFIG_XFS_FS=m # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1273,6 +1297,7 @@ CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_HAVE_LMB=y CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y # # Kernel hacking @@ -1298,22 +1323,11 @@ CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set -# CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_FTRACE is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_PPC_DISABLE_WERROR is not set +CONFIG_PPC_WERROR=y CONFIG_PRINT_STACK_DEPTH=64 # CONFIG_IRQSTACKS is not set # CONFIG_BOOTX_TEXT is not set -- cgit v1.2.3 From f294526279cda8934b0313ebd02184a16ba888c9 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sun, 19 Jul 2009 14:46:09 +0300 Subject: lguest: dereferencing freed mem in add_eventfd() "new" was freed and then dereferenced. Also the return value wasn't being used so I modified the caller as well. Compile tested only. Found by smatch (http://repo.or.cz/w/smatch.git). regards, dan carpenter Signed-off-by: Dan Carpenter Signed-off-by: Rusty Russell --- drivers/lguest/lguest_user.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/lguest/lguest_user.c b/drivers/lguest/lguest_user.c index 9f9a2953b38..407722a8e0c 100644 --- a/drivers/lguest/lguest_user.c +++ b/drivers/lguest/lguest_user.c @@ -52,8 +52,9 @@ static int add_eventfd(struct lguest *lg, unsigned long addr, int fd) new->map[new->num].addr = addr; new->map[new->num].event = eventfd_ctx_fdget(fd); if (IS_ERR(new->map[new->num].event)) { + int err = PTR_ERR(new->map[new->num].event); kfree(new); - return PTR_ERR(new->map[new->num].event); + return err; } new->num++; @@ -83,7 +84,7 @@ static int attach_eventfd(struct lguest *lg, const unsigned long __user *input) err = add_eventfd(lg, addr, fd); mutex_unlock(&lguest_lock); - return 0; + return err; } /*L:050 Sending an interrupt is done by writing LHREQ_IRQ and an interrupt -- cgit v1.2.3 From 8ef562d112c82ec539775698f8b63ac5ec1bd766 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Thu, 30 Jul 2009 16:03:43 -0600 Subject: lguest: fix descriptor corruption in example launcher 1d589bb16b825b3a7b4edd34d997f1f1f953033d "Add serial number support for virtio_blk, V4a" extended 'struct virtio_blk_config' to 536 bytes. Lguest and S/390 both use an 8 bit value for the feature length, and this change broke them (if the code is naive). Signed-off-by: Rusty Russell Cc: John Cooper Cc: Christian Borntraeger --- Documentation/lguest/lguest.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/Documentation/lguest/lguest.c b/Documentation/lguest/lguest.c index 9ebcd6ef361..45d7d6dcae7 100644 --- a/Documentation/lguest/lguest.c +++ b/Documentation/lguest/lguest.c @@ -1105,6 +1105,9 @@ static void set_config(struct device *dev, unsigned len, const void *conf) /* Copy in the config information, and store the length. */ memcpy(device_config(dev), conf, len); dev->desc->config_len = len; + + /* Size must fit in config_len field (8 bits)! */ + assert(dev->desc->config_len == len); } /* This routine does all the creation and setup of a new device, including @@ -1515,7 +1518,8 @@ static void setup_block_file(const char *filename) add_feature(dev, VIRTIO_BLK_F_SEG_MAX); conf.seg_max = cpu_to_le32(VIRTQUEUE_NUM - 2); - set_config(dev, sizeof(conf), &conf); + /* Don't try to put whole struct: we have 8 bit limit. */ + set_config(dev, offsetof(struct virtio_blk_config, geometry), &conf); verbose("device %u: virtblock %llu sectors\n", ++devices.device_num, le64_to_cpu(conf.capacity)); -- cgit v1.2.3 From ff52c3fc7188855ede75d87b022271f0da309e5b Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Thu, 23 Jul 2009 14:57:37 +0300 Subject: virtio: fix memory leak on device removal Make vp_free_vectors do the reverse of vq_request_vectors. Signed-off-by: Michael S. Tsirkin Signed-off-by: Rusty Russell --- drivers/virtio/virtio_pci.c | 28 +++++++++++++++------------- 1 file changed, 15 insertions(+), 13 deletions(-) diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c index bcec78ffc76..ca40517ef9c 100644 --- a/drivers/virtio/virtio_pci.c +++ b/drivers/virtio/virtio_pci.c @@ -258,7 +258,6 @@ static void vp_free_vectors(struct virtio_device *vdev) for (i = 0; i < vp_dev->msix_used_vectors; ++i) free_irq(vp_dev->msix_entries[i].vector, vp_dev); - vp_dev->msix_used_vectors = 0; if (vp_dev->msix_enabled) { /* Disable the vector used for configuration */ @@ -267,9 +266,16 @@ static void vp_free_vectors(struct virtio_device *vdev) /* Flush the write out to device */ ioread16(vp_dev->ioaddr + VIRTIO_MSI_CONFIG_VECTOR); - vp_dev->msix_enabled = 0; pci_disable_msix(vp_dev->pci_dev); + vp_dev->msix_enabled = 0; + vp_dev->msix_vectors = 0; } + + vp_dev->msix_used_vectors = 0; + kfree(vp_dev->msix_names); + vp_dev->msix_names = NULL; + kfree(vp_dev->msix_entries); + vp_dev->msix_entries = NULL; } static int vp_enable_msix(struct pci_dev *dev, struct msix_entry *entries, @@ -297,11 +303,11 @@ static int vp_request_vectors(struct virtio_device *vdev, unsigned max_vqs) vp_dev->msix_entries = kmalloc(nvectors * sizeof *vp_dev->msix_entries, GFP_KERNEL); if (!vp_dev->msix_entries) - goto error_entries; + goto error; vp_dev->msix_names = kmalloc(nvectors * sizeof *vp_dev->msix_names, GFP_KERNEL); if (!vp_dev->msix_names) - goto error_names; + goto error; for (i = 0; i < nvectors; ++i) vp_dev->msix_entries[i].entry = i; @@ -314,7 +320,7 @@ static int vp_request_vectors(struct virtio_device *vdev, unsigned max_vqs) err = request_irq(vp_dev->pci_dev->irq, vp_interrupt, IRQF_SHARED, name, vp_dev); if (err) - goto error_irq; + goto error; vp_dev->intx_enabled = 1; } else { vp_dev->msix_vectors = err; @@ -328,7 +334,7 @@ static int vp_request_vectors(struct virtio_device *vdev, unsigned max_vqs) vp_config_changed, 0, vp_dev->msix_names[v], vp_dev); if (err) - goto error_irq; + goto error; ++vp_dev->msix_used_vectors; iowrite16(v, vp_dev->ioaddr + VIRTIO_MSI_CONFIG_VECTOR); @@ -336,7 +342,7 @@ static int vp_request_vectors(struct virtio_device *vdev, unsigned max_vqs) v = ioread16(vp_dev->ioaddr + VIRTIO_MSI_CONFIG_VECTOR); if (v == VIRTIO_MSI_NO_VECTOR) { err = -EBUSY; - goto error_irq; + goto error; } } @@ -349,16 +355,12 @@ static int vp_request_vectors(struct virtio_device *vdev, unsigned max_vqs) vp_vring_interrupt, 0, vp_dev->msix_names[v], vp_dev); if (err) - goto error_irq; + goto error; ++vp_dev->msix_used_vectors; } return 0; -error_irq: +error: vp_free_vectors(vdev); - kfree(vp_dev->msix_names); -error_names: - kfree(vp_dev->msix_entries); -error_entries: return err; } -- cgit v1.2.3 From f6c82507030d61e15928d5cad946d3eac1c4a384 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Sun, 26 Jul 2009 15:48:01 +0300 Subject: virtio: delete vq from list This makes delete vq the reverse of find vq. This is required to make it possible to retry find_vqs after a failure, otherwise the list gets corrupted. Signed-off-by: Michael S. Tsirkin Signed-off-by: Rusty Russell --- drivers/virtio/virtio_pci.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c index ca40517ef9c..a1cb1a1c652 100644 --- a/drivers/virtio/virtio_pci.c +++ b/drivers/virtio/virtio_pci.c @@ -464,7 +464,11 @@ static void vp_del_vq(struct virtqueue *vq) { struct virtio_pci_device *vp_dev = to_vp_device(vq->vdev); struct virtio_pci_vq_info *info = vq->priv; - unsigned long size; + unsigned long flags, size; + + spin_lock_irqsave(&vp_dev->lock, flags); + list_del(&info->node); + spin_unlock_irqrestore(&vp_dev->lock, flags); iowrite16(info->queue_index, vp_dev->ioaddr + VIRTIO_PCI_QUEUE_SEL); -- cgit v1.2.3 From e969fed542cae08cb11d666efac4f7c5d624d09f Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Sun, 26 Jul 2009 15:48:08 +0300 Subject: virtio: refactor find_vqs This refactors find_vqs, making it more readable and robust, and fixing two regressions from 2.6.30: - double free_irq causing BUG_ON on device removal - probe failure when vq can't be assigned to msi-x vector (reported on old host kernels) Tested-by: Amit Shah Signed-off-by: Michael S. Tsirkin Signed-off-by: Rusty Russell --- drivers/virtio/virtio_pci.c | 212 +++++++++++++++++++++++++------------------- 1 file changed, 119 insertions(+), 93 deletions(-) diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c index a1cb1a1c652..248e00ec4dc 100644 --- a/drivers/virtio/virtio_pci.c +++ b/drivers/virtio/virtio_pci.c @@ -52,8 +52,10 @@ struct virtio_pci_device char (*msix_names)[256]; /* Number of available vectors */ unsigned msix_vectors; - /* Vectors allocated */ + /* Vectors allocated, excluding per-vq vectors if any */ unsigned msix_used_vectors; + /* Whether we have vector per vq */ + bool per_vq_vectors; }; /* Constants for MSI-X */ @@ -278,27 +280,24 @@ static void vp_free_vectors(struct virtio_device *vdev) vp_dev->msix_entries = NULL; } -static int vp_enable_msix(struct pci_dev *dev, struct msix_entry *entries, - int *options, int noptions) -{ - int i; - for (i = 0; i < noptions; ++i) - if (!pci_enable_msix(dev, entries, options[i])) - return options[i]; - return -EBUSY; -} - -static int vp_request_vectors(struct virtio_device *vdev, unsigned max_vqs) +static int vp_request_vectors(struct virtio_device *vdev, int nvectors, + bool per_vq_vectors) { struct virtio_pci_device *vp_dev = to_vp_device(vdev); const char *name = dev_name(&vp_dev->vdev.dev); unsigned i, v; int err = -ENOMEM; - /* We want at most one vector per queue and one for config changes. - * Fallback to separate vectors for config and a shared for queues. - * Finally fall back to regular interrupts. */ - int options[] = { max_vqs + 1, 2 }; - int nvectors = max(options[0], options[1]); + + if (!nvectors) { + /* Can't allocate MSI-X vectors, use regular interrupt */ + vp_dev->msix_vectors = 0; + err = request_irq(vp_dev->pci_dev->irq, vp_interrupt, + IRQF_SHARED, name, vp_dev); + if (err) + return err; + vp_dev->intx_enabled = 1; + return 0; + } vp_dev->msix_entries = kmalloc(nvectors * sizeof *vp_dev->msix_entries, GFP_KERNEL); @@ -312,41 +311,34 @@ static int vp_request_vectors(struct virtio_device *vdev, unsigned max_vqs) for (i = 0; i < nvectors; ++i) vp_dev->msix_entries[i].entry = i; - err = vp_enable_msix(vp_dev->pci_dev, vp_dev->msix_entries, - options, ARRAY_SIZE(options)); - if (err < 0) { - /* Can't allocate enough MSI-X vectors, use regular interrupt */ - vp_dev->msix_vectors = 0; - err = request_irq(vp_dev->pci_dev->irq, vp_interrupt, - IRQF_SHARED, name, vp_dev); - if (err) - goto error; - vp_dev->intx_enabled = 1; - } else { - vp_dev->msix_vectors = err; - vp_dev->msix_enabled = 1; - - /* Set the vector used for configuration */ - v = vp_dev->msix_used_vectors; - snprintf(vp_dev->msix_names[v], sizeof *vp_dev->msix_names, - "%s-config", name); - err = request_irq(vp_dev->msix_entries[v].vector, - vp_config_changed, 0, vp_dev->msix_names[v], - vp_dev); - if (err) - goto error; - ++vp_dev->msix_used_vectors; + err = pci_enable_msix(vp_dev->pci_dev, vp_dev->msix_entries, nvectors); + if (err > 0) + err = -ENOSPC; + if (err) + goto error; + vp_dev->msix_vectors = nvectors; + vp_dev->msix_enabled = 1; + + /* Set the vector used for configuration */ + v = vp_dev->msix_used_vectors; + snprintf(vp_dev->msix_names[v], sizeof *vp_dev->msix_names, + "%s-config", name); + err = request_irq(vp_dev->msix_entries[v].vector, + vp_config_changed, 0, vp_dev->msix_names[v], + vp_dev); + if (err) + goto error; + ++vp_dev->msix_used_vectors; - iowrite16(v, vp_dev->ioaddr + VIRTIO_MSI_CONFIG_VECTOR); - /* Verify we had enough resources to assign the vector */ - v = ioread16(vp_dev->ioaddr + VIRTIO_MSI_CONFIG_VECTOR); - if (v == VIRTIO_MSI_NO_VECTOR) { - err = -EBUSY; - goto error; - } + iowrite16(v, vp_dev->ioaddr + VIRTIO_MSI_CONFIG_VECTOR); + /* Verify we had enough resources to assign the vector */ + v = ioread16(vp_dev->ioaddr + VIRTIO_MSI_CONFIG_VECTOR); + if (v == VIRTIO_MSI_NO_VECTOR) { + err = -EBUSY; + goto error; } - if (vp_dev->msix_vectors && vp_dev->msix_vectors != max_vqs + 1) { + if (!per_vq_vectors) { /* Shared vector for all VQs */ v = vp_dev->msix_used_vectors; snprintf(vp_dev->msix_names[v], sizeof *vp_dev->msix_names, @@ -366,13 +358,14 @@ error: static struct virtqueue *vp_find_vq(struct virtio_device *vdev, unsigned index, void (*callback)(struct virtqueue *vq), - const char *name) + const char *name, + u16 vector) { struct virtio_pci_device *vp_dev = to_vp_device(vdev); struct virtio_pci_vq_info *info; struct virtqueue *vq; unsigned long flags, size; - u16 num, vector; + u16 num; int err; /* Select the queue we're interested in */ @@ -391,7 +384,7 @@ static struct virtqueue *vp_find_vq(struct virtio_device *vdev, unsigned index, info->queue_index = index; info->num = num; - info->vector = VIRTIO_MSI_NO_VECTOR; + info->vector = vector; size = PAGE_ALIGN(vring_size(num, VIRTIO_PCI_VRING_ALIGN)); info->queue = alloc_pages_exact(size, GFP_KERNEL|__GFP_ZERO); @@ -415,22 +408,7 @@ static struct virtqueue *vp_find_vq(struct virtio_device *vdev, unsigned index, vq->priv = info; info->vq = vq; - /* allocate per-vq vector if available and necessary */ - if (callback && vp_dev->msix_used_vectors < vp_dev->msix_vectors) { - vector = vp_dev->msix_used_vectors; - snprintf(vp_dev->msix_names[vector], sizeof *vp_dev->msix_names, - "%s-%s", dev_name(&vp_dev->vdev.dev), name); - err = request_irq(vp_dev->msix_entries[vector].vector, - vring_interrupt, 0, - vp_dev->msix_names[vector], vq); - if (err) - goto out_request_irq; - info->vector = vector; - ++vp_dev->msix_used_vectors; - } else - vector = VP_MSIX_VQ_VECTOR; - - if (callback && vp_dev->msix_enabled) { + if (vector != VIRTIO_MSI_NO_VECTOR) { iowrite16(vector, vp_dev->ioaddr + VIRTIO_MSI_QUEUE_VECTOR); vector = ioread16(vp_dev->ioaddr + VIRTIO_MSI_QUEUE_VECTOR); if (vector == VIRTIO_MSI_NO_VECTOR) { @@ -446,11 +424,6 @@ static struct virtqueue *vp_find_vq(struct virtio_device *vdev, unsigned index, return vq; out_assign: - if (info->vector != VIRTIO_MSI_NO_VECTOR) { - free_irq(vp_dev->msix_entries[info->vector].vector, vq); - --vp_dev->msix_used_vectors; - } -out_request_irq: vring_del_virtqueue(vq); out_activate_queue: iowrite32(0, vp_dev->ioaddr + VIRTIO_PCI_QUEUE_PFN); @@ -472,9 +445,6 @@ static void vp_del_vq(struct virtqueue *vq) iowrite16(info->queue_index, vp_dev->ioaddr + VIRTIO_PCI_QUEUE_SEL); - if (info->vector != VIRTIO_MSI_NO_VECTOR) - free_irq(vp_dev->msix_entries[info->vector].vector, vq); - if (vp_dev->msix_enabled) { iowrite16(VIRTIO_MSI_NO_VECTOR, vp_dev->ioaddr + VIRTIO_MSI_QUEUE_VECTOR); @@ -495,36 +465,62 @@ static void vp_del_vq(struct virtqueue *vq) /* the config->del_vqs() implementation */ static void vp_del_vqs(struct virtio_device *vdev) { + struct virtio_pci_device *vp_dev = to_vp_device(vdev); struct virtqueue *vq, *n; + struct virtio_pci_vq_info *info; - list_for_each_entry_safe(vq, n, &vdev->vqs, list) + list_for_each_entry_safe(vq, n, &vdev->vqs, list) { + info = vq->priv; + if (vp_dev->per_vq_vectors) + free_irq(vp_dev->msix_entries[info->vector].vector, vq); vp_del_vq(vq); + } + vp_dev->per_vq_vectors = false; vp_free_vectors(vdev); } -/* the config->find_vqs() implementation */ -static int vp_find_vqs(struct virtio_device *vdev, unsigned nvqs, - struct virtqueue *vqs[], - vq_callback_t *callbacks[], - const char *names[]) +static int vp_try_to_find_vqs(struct virtio_device *vdev, unsigned nvqs, + struct virtqueue *vqs[], + vq_callback_t *callbacks[], + const char *names[], + int nvectors, + bool per_vq_vectors) { - int vectors = 0; - int i, err; - - /* How many vectors would we like? */ - for (i = 0; i < nvqs; ++i) - if (callbacks[i]) - ++vectors; + struct virtio_pci_device *vp_dev = to_vp_device(vdev); + u16 vector; + int i, err, allocated_vectors; - err = vp_request_vectors(vdev, vectors); + err = vp_request_vectors(vdev, nvectors, per_vq_vectors); if (err) goto error_request; + vp_dev->per_vq_vectors = per_vq_vectors; + allocated_vectors = vp_dev->msix_used_vectors; for (i = 0; i < nvqs; ++i) { - vqs[i] = vp_find_vq(vdev, i, callbacks[i], names[i]); - if (IS_ERR(vqs[i])) + if (!callbacks[i] || !vp_dev->msix_enabled) + vector = VIRTIO_MSI_NO_VECTOR; + else if (vp_dev->per_vq_vectors) + vector = allocated_vectors++; + else + vector = VP_MSIX_VQ_VECTOR; + vqs[i] = vp_find_vq(vdev, i, callbacks[i], names[i], vector); + if (IS_ERR(vqs[i])) { + err = PTR_ERR(vqs[i]); goto error_find; + } + /* allocate per-vq irq if available and necessary */ + if (vp_dev->per_vq_vectors && vector != VIRTIO_MSI_NO_VECTOR) { + snprintf(vp_dev->msix_names[vector], sizeof *vp_dev->msix_names, + "%s-%s", dev_name(&vp_dev->vdev.dev), names[i]); + err = request_irq(vp_dev->msix_entries[vector].vector, + vring_interrupt, 0, + vp_dev->msix_names[vector], vqs[i]); + if (err) { + vp_del_vq(vqs[i]); + goto error_find; + } + } } return 0; @@ -532,7 +528,37 @@ error_find: vp_del_vqs(vdev); error_request: - return PTR_ERR(vqs[i]); + return err; +} + +/* the config->find_vqs() implementation */ +static int vp_find_vqs(struct virtio_device *vdev, unsigned nvqs, + struct virtqueue *vqs[], + vq_callback_t *callbacks[], + const char *names[]) +{ + int vectors = 0; + int i, uninitialized_var(err); + + /* How many vectors would we like? */ + for (i = 0; i < nvqs; ++i) + if (callbacks[i]) + ++vectors; + + /* We want at most one vector per queue and one for config changes. */ + err = vp_try_to_find_vqs(vdev, nvqs, vqs, callbacks, names, + vectors + 1, true); + if (!err) + return 0; + /* Fallback to separate vectors for config and a shared for queues. */ + err = vp_try_to_find_vqs(vdev, nvqs, vqs, callbacks, names, + 2, false); + if (!err) + return 0; + /* Finally fall back to regular interrupts. */ + err = vp_try_to_find_vqs(vdev, nvqs, vqs, callbacks, names, + 0, false); + return err; } static struct virtio_config_ops virtio_pci_config_ops = { -- cgit v1.2.3 From 2e04ef76916d1e29a077ea9d0f2003c8fd86724d Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Thu, 30 Jul 2009 16:03:45 -0600 Subject: lguest: fix comment style I don't really notice it (except to begrudge the extra vertical space), but Ingo does. And he pointed out that one excuse of lguest is as a teaching tool, it should set a good example. Signed-off-by: Rusty Russell Cc: Ingo Molnar --- Documentation/lguest/lguest.c | 540 ++++++++++++++++++++++------------ arch/x86/include/asm/lguest.h | 3 +- arch/x86/include/asm/lguest_hcall.h | 10 +- arch/x86/lguest/boot.c | 428 +++++++++++++++++---------- arch/x86/lguest/i386_head.S | 110 ++++--- drivers/lguest/core.c | 114 ++++--- drivers/lguest/hypercalls.c | 141 ++++++--- drivers/lguest/interrupts_and_traps.c | 288 ++++++++++++------ drivers/lguest/lg.h | 23 +- drivers/lguest/lguest_device.c | 150 ++++++---- drivers/lguest/lguest_user.c | 137 ++++++--- drivers/lguest/page_tables.c | 427 ++++++++++++++++++--------- drivers/lguest/segments.c | 106 ++++--- drivers/lguest/x86/core.c | 372 +++++++++++++++-------- drivers/lguest/x86/switcher_32.S | 18 +- include/linux/lguest.h | 36 ++- include/linux/lguest_launcher.h | 18 +- 17 files changed, 1906 insertions(+), 1015 deletions(-) diff --git a/Documentation/lguest/lguest.c b/Documentation/lguest/lguest.c index 45d7d6dcae7..aa66a52b73e 100644 --- a/Documentation/lguest/lguest.c +++ b/Documentation/lguest/lguest.c @@ -1,7 +1,9 @@ -/*P:100 This is the Launcher code, a simple program which lays out the - * "physical" memory for the new Guest by mapping the kernel image and - * the virtual devices, then opens /dev/lguest to tell the kernel - * about the Guest and control it. :*/ +/*P:100 + * This is the Launcher code, a simple program which lays out the "physical" + * memory for the new Guest by mapping the kernel image and the virtual + * devices, then opens /dev/lguest to tell the kernel about the Guest and + * control it. +:*/ #define _LARGEFILE64_SOURCE #define _GNU_SOURCE #include @@ -46,13 +48,15 @@ #include "linux/virtio_rng.h" #include "linux/virtio_ring.h" #include "asm/bootparam.h" -/*L:110 We can ignore the 39 include files we need for this program, but I do - * want to draw attention to the use of kernel-style types. +/*L:110 + * We can ignore the 39 include files we need for this program, but I do want + * to draw attention to the use of kernel-style types. * * As Linus said, "C is a Spartan language, and so should your naming be." I * like these abbreviations, so we define them here. Note that u64 is always * unsigned long long, which works on all Linux systems: this means that we can - * use %llu in printf for any u64. */ + * use %llu in printf for any u64. + */ typedef unsigned long long u64; typedef uint32_t u32; typedef uint16_t u16; @@ -69,8 +73,10 @@ typedef uint8_t u8; /* This will occupy 3 pages: it must be a power of 2. */ #define VIRTQUEUE_NUM 256 -/*L:120 verbose is both a global flag and a macro. The C preprocessor allows - * this, and although I wouldn't recommend it, it works quite nicely here. */ +/*L:120 + * verbose is both a global flag and a macro. The C preprocessor allows + * this, and although I wouldn't recommend it, it works quite nicely here. + */ static bool verbose; #define verbose(args...) \ do { if (verbose) printf(args); } while(0) @@ -100,8 +106,7 @@ struct device_list /* A single linked list of devices. */ struct device *dev; - /* And a pointer to the last device for easy append and also for - * configuration appending. */ + /* And a pointer to the last device for easy append. */ struct device *lastdev; }; @@ -168,20 +173,24 @@ static char **main_args; /* The original tty settings to restore on exit. */ static struct termios orig_term; -/* We have to be careful with barriers: our devices are all run in separate +/* + * We have to be careful with barriers: our devices are all run in separate * threads and so we need to make sure that changes visible to the Guest happen - * in precise order. */ + * in precise order. + */ #define wmb() __asm__ __volatile__("" : : : "memory") #define mb() __asm__ __volatile__("" : : : "memory") -/* Convert an iovec element to the given type. +/* + * Convert an iovec element to the given type. * * This is a fairly ugly trick: we need to know the size of the type and * alignment requirement to check the pointer is kosher. It's also nice to * have the name of the type in case we report failure. * * Typing those three things all the time is cumbersome and error prone, so we - * have a macro which sets them all up and passes to the real function. */ + * have a macro which sets them all up and passes to the real function. + */ #define convert(iov, type) \ ((type *)_convert((iov), sizeof(type), __alignof__(type), #type)) @@ -198,8 +207,10 @@ static void *_convert(struct iovec *iov, size_t size, size_t align, /* Wrapper for the last available index. Makes it easier to change. */ #define lg_last_avail(vq) ((vq)->last_avail_idx) -/* The virtio configuration space is defined to be little-endian. x86 is - * little-endian too, but it's nice to be explicit so we have these helpers. */ +/* + * The virtio configuration space is defined to be little-endian. x86 is + * little-endian too, but it's nice to be explicit so we have these helpers. + */ #define cpu_to_le16(v16) (v16) #define cpu_to_le32(v32) (v32) #define cpu_to_le64(v64) (v64) @@ -241,11 +252,12 @@ static u8 *get_feature_bits(struct device *dev) + dev->num_vq * sizeof(struct lguest_vqconfig); } -/*L:100 The Launcher code itself takes us out into userspace, that scary place - * where pointers run wild and free! Unfortunately, like most userspace - * programs, it's quite boring (which is why everyone likes to hack on the - * kernel!). Perhaps if you make up an Lguest Drinking Game at this point, it - * will get you through this section. Or, maybe not. +/*L:100 + * The Launcher code itself takes us out into userspace, that scary place where + * pointers run wild and free! Unfortunately, like most userspace programs, + * it's quite boring (which is why everyone likes to hack on the kernel!). + * Perhaps if you make up an Lguest Drinking Game at this point, it will get + * you through this section. Or, maybe not. * * The Launcher sets up a big chunk of memory to be the Guest's "physical" * memory and stores it in "guest_base". In other words, Guest physical == @@ -253,7 +265,8 @@ static u8 *get_feature_bits(struct device *dev) * * This can be tough to get your head around, but usually it just means that we * use these trivial conversion functions when the Guest gives us it's - * "physical" addresses: */ + * "physical" addresses: + */ static void *from_guest_phys(unsigned long addr) { return guest_base + addr; @@ -268,7 +281,8 @@ static unsigned long to_guest_phys(const void *addr) * Loading the Kernel. * * We start with couple of simple helper routines. open_or_die() avoids - * error-checking code cluttering the callers: */ + * error-checking code cluttering the callers: + */ static int open_or_die(const char *name, int flags) { int fd = open(name, flags); @@ -283,8 +297,10 @@ static void *map_zeroed_pages(unsigned int num) int fd = open_or_die("/dev/zero", O_RDONLY); void *addr; - /* We use a private mapping (ie. if we write to the page, it will be - * copied). */ + /* + * We use a private mapping (ie. if we write to the page, it will be + * copied). + */ addr = mmap(NULL, getpagesize() * num, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE, fd, 0); if (addr == MAP_FAILED) @@ -305,20 +321,24 @@ static void *get_pages(unsigned int num) return addr; } -/* This routine is used to load the kernel or initrd. It tries mmap, but if +/* + * This routine is used to load the kernel or initrd. It tries mmap, but if * that fails (Plan 9's kernel file isn't nicely aligned on page boundaries), - * it falls back to reading the memory in. */ + * it falls back to reading the memory in. + */ static void map_at(int fd, void *addr, unsigned long offset, unsigned long len) { ssize_t r; - /* We map writable even though for some segments are marked read-only. + /* + * We map writable even though for some segments are marked read-only. * The kernel really wants to be writable: it patches its own * instructions. * * MAP_PRIVATE means that the page won't be copied until a write is * done to it. This allows us to share untouched memory between - * Guests. */ + * Guests. + */ if (mmap(addr, len, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_FIXED|MAP_PRIVATE, fd, offset) != MAP_FAILED) return; @@ -329,7 +349,8 @@ static void map_at(int fd, void *addr, unsigned long offset, unsigned long len) err(1, "Reading offset %lu len %lu gave %zi", offset, len, r); } -/* This routine takes an open vmlinux image, which is in ELF, and maps it into +/* + * This routine takes an open vmlinux image, which is in ELF, and maps it into * the Guest memory. ELF = Embedded Linking Format, which is the format used * by all modern binaries on Linux including the kernel. * @@ -337,23 +358,28 @@ static void map_at(int fd, void *addr, unsigned long offset, unsigned long len) * address. We use the physical address; the Guest will map itself to the * virtual address. * - * We return the starting address. */ + * We return the starting address. + */ static unsigned long map_elf(int elf_fd, const Elf32_Ehdr *ehdr) { Elf32_Phdr phdr[ehdr->e_phnum]; unsigned int i; - /* Sanity checks on the main ELF header: an x86 executable with a - * reasonable number of correctly-sized program headers. */ + /* + * Sanity checks on the main ELF header: an x86 executable with a + * reasonable number of correctly-sized program headers. + */ if (ehdr->e_type != ET_EXEC || ehdr->e_machine != EM_386 || ehdr->e_phentsize != sizeof(Elf32_Phdr) || ehdr->e_phnum < 1 || ehdr->e_phnum > 65536U/sizeof(Elf32_Phdr)) errx(1, "Malformed elf header"); - /* An ELF executable contains an ELF header and a number of "program" + /* + * An ELF executable contains an ELF header and a number of "program" * headers which indicate which parts ("segments") of the program to - * load where. */ + * load where. + */ /* We read in all the program headers at once: */ if (lseek(elf_fd, ehdr->e_phoff, SEEK_SET) < 0) @@ -361,8 +387,10 @@ static unsigned long map_elf(int elf_fd, const Elf32_Ehdr *ehdr) if (read(elf_fd, phdr, sizeof(phdr)) != sizeof(phdr)) err(1, "Reading program headers"); - /* Try all the headers: there are usually only three. A read-only one, - * a read-write one, and a "note" section which we don't load. */ + /* + * Try all the headers: there are usually only three. A read-only one, + * a read-write one, and a "note" section which we don't load. + */ for (i = 0; i < ehdr->e_phnum; i++) { /* If this isn't a loadable segment, we ignore it */ if (phdr[i].p_type != PT_LOAD) @@ -380,13 +408,15 @@ static unsigned long map_elf(int elf_fd, const Elf32_Ehdr *ehdr) return ehdr->e_entry; } -/*L:150 A bzImage, unlike an ELF file, is not meant to be loaded. You're - * supposed to jump into it and it will unpack itself. We used to have to - * perform some hairy magic because the unpacking code scared me. +/*L:150 + * A bzImage, unlike an ELF file, is not meant to be loaded. You're supposed + * to jump into it and it will unpack itself. We used to have to perform some + * hairy magic because the unpacking code scared me. * * Fortunately, Jeremy Fitzhardinge convinced me it wasn't that hard and wrote * a small patch to jump over the tricky bits in the Guest, so now we just read - * the funky header so we know where in the file to load, and away we go! */ + * the funky header so we know where in the file to load, and away we go! + */ static unsigned long load_bzimage(int fd) { struct boot_params boot; @@ -394,8 +424,10 @@ static unsigned long load_bzimage(int fd) /* Modern bzImages get loaded at 1M. */ void *p = from_guest_phys(0x100000); - /* Go back to the start of the file and read the header. It should be - * a Linux boot header (see Documentation/x86/i386/boot.txt) */ + /* + * Go back to the start of the file and read the header. It should be + * a Linux boot header (see Documentation/x86/i386/boot.txt) + */ lseek(fd, 0, SEEK_SET); read(fd, &boot, sizeof(boot)); @@ -414,9 +446,11 @@ static unsigned long load_bzimage(int fd) return boot.hdr.code32_start; } -/*L:140 Loading the kernel is easy when it's a "vmlinux", but most kernels +/*L:140 + * Loading the kernel is easy when it's a "vmlinux", but most kernels * come wrapped up in the self-decompressing "bzImage" format. With a little - * work, we can load those, too. */ + * work, we can load those, too. + */ static unsigned long load_kernel(int fd) { Elf32_Ehdr hdr; @@ -433,24 +467,28 @@ static unsigned long load_kernel(int fd) return load_bzimage(fd); } -/* This is a trivial little helper to align pages. Andi Kleen hated it because +/* + * This is a trivial little helper to align pages. Andi Kleen hated it because * it calls getpagesize() twice: "it's dumb code." * * Kernel guys get really het up about optimization, even when it's not - * necessary. I leave this code as a reaction against that. */ + * necessary. I leave this code as a reaction against that. + */ static inline unsigned long page_align(unsigned long addr) { /* Add upwards and truncate downwards. */ return ((addr + getpagesize()-1) & ~(getpagesize()-1)); } -/*L:180 An "initial ram disk" is a disk image loaded into memory along with - * the kernel which the kernel can use to boot from without needing any - * drivers. Most distributions now use this as standard: the initrd contains - * the code to load the appropriate driver modules for the current machine. +/*L:180 + * An "initial ram disk" is a disk image loaded into memory along with the + * kernel which the kernel can use to boot from without needing any drivers. + * Most distributions now use this as standard: the initrd contains the code to + * load the appropriate driver modules for the current machine. * * Importantly, James Morris works for RedHat, and Fedora uses initrds for its - * kernels. He sent me this (and tells me when I break it). */ + * kernels. He sent me this (and tells me when I break it). + */ static unsigned long load_initrd(const char *name, unsigned long mem) { int ifd; @@ -462,12 +500,16 @@ static unsigned long load_initrd(const char *name, unsigned long mem) if (fstat(ifd, &st) < 0) err(1, "fstat() on initrd '%s'", name); - /* We map the initrd at the top of memory, but mmap wants it to be - * page-aligned, so we round the size up for that. */ + /* + * We map the initrd at the top of memory, but mmap wants it to be + * page-aligned, so we round the size up for that. + */ len = page_align(st.st_size); map_at(ifd, from_guest_phys(mem - len), 0, st.st_size); - /* Once a file is mapped, you can close the file descriptor. It's a - * little odd, but quite useful. */ + /* + * Once a file is mapped, you can close the file descriptor. It's a + * little odd, but quite useful. + */ close(ifd); verbose("mapped initrd %s size=%lu @ %p\n", name, len, (void*)mem-len); @@ -476,8 +518,10 @@ static unsigned long load_initrd(const char *name, unsigned long mem) } /*:*/ -/* Simple routine to roll all the commandline arguments together with spaces - * between them. */ +/* + * Simple routine to roll all the commandline arguments together with spaces + * between them. + */ static void concat(char *dst, char *args[]) { unsigned int i, len = 0; @@ -494,10 +538,12 @@ static void concat(char *dst, char *args[]) dst[len] = '\0'; } -/*L:185 This is where we actually tell the kernel to initialize the Guest. We +/*L:185 + * This is where we actually tell the kernel to initialize the Guest. We * saw the arguments it expects when we looked at initialize() in lguest_user.c: * the base of Guest "physical" memory, the top physical page to allow and the - * entry point for the Guest. */ + * entry point for the Guest. + */ static void tell_kernel(unsigned long start) { unsigned long args[] = { LHREQ_INITIALIZE, @@ -522,20 +568,26 @@ static void tell_kernel(unsigned long start) static void *_check_pointer(unsigned long addr, unsigned int size, unsigned int line) { - /* We have to separately check addr and addr+size, because size could - * be huge and addr + size might wrap around. */ + /* + * We have to separately check addr and addr+size, because size could + * be huge and addr + size might wrap around. + */ if (addr >= guest_limit || addr + size >= guest_limit) errx(1, "%s:%i: Invalid address %#lx", __FILE__, line, addr); - /* We return a pointer for the caller's convenience, now we know it's - * safe to use. */ + /* + * We return a pointer for the caller's convenience, now we know it's + * safe to use. + */ return from_guest_phys(addr); } /* A macro which transparently hands the line number to the real function. */ #define check_pointer(addr,size) _check_pointer(addr, size, __LINE__) -/* Each buffer in the virtqueues is actually a chain of descriptors. This +/* + * Each buffer in the virtqueues is actually a chain of descriptors. This * function returns the next descriptor in the chain, or vq->vring.num if we're - * at the end. */ + * at the end. + */ static unsigned next_desc(struct vring_desc *desc, unsigned int i, unsigned int max) { @@ -576,12 +628,14 @@ static void trigger_irq(struct virtqueue *vq) err(1, "Triggering irq %i", vq->config.irq); } -/* This looks in the virtqueue and for the first available buffer, and converts +/* + * This looks in the virtqueue and for the first available buffer, and converts * it to an iovec for convenient access. Since descriptors consist of some * number of output then some number of input descriptors, it's actually two * iovecs, but we pack them into one and note how many of each there were. * - * This function returns the descriptor number found. */ + * This function returns the descriptor number found. + */ static unsigned wait_for_vq_desc(struct virtqueue *vq, struct iovec iov[], unsigned int *out_num, unsigned int *in_num) @@ -599,8 +653,10 @@ static unsigned wait_for_vq_desc(struct virtqueue *vq, /* OK, now we need to know about added descriptors. */ vq->vring.used->flags &= ~VRING_USED_F_NO_NOTIFY; - /* They could have slipped one in as we were doing that: make - * sure it's written, then check again. */ + /* + * They could have slipped one in as we were doing that: make + * sure it's written, then check again. + */ mb(); if (last_avail != vq->vring.avail->idx) { vq->vring.used->flags |= VRING_USED_F_NO_NOTIFY; @@ -620,8 +676,10 @@ static unsigned wait_for_vq_desc(struct virtqueue *vq, errx(1, "Guest moved used index from %u to %u", last_avail, vq->vring.avail->idx); - /* Grab the next descriptor number they're advertising, and increment - * the index we've seen. */ + /* + * Grab the next descriptor number they're advertising, and increment + * the index we've seen. + */ head = vq->vring.avail->ring[last_avail % vq->vring.num]; lg_last_avail(vq)++; @@ -636,8 +694,10 @@ static unsigned wait_for_vq_desc(struct virtqueue *vq, desc = vq->vring.desc; i = head; - /* If this is an indirect entry, then this buffer contains a descriptor - * table which we handle as if it's any normal descriptor chain. */ + /* + * If this is an indirect entry, then this buffer contains a descriptor + * table which we handle as if it's any normal descriptor chain. + */ if (desc[i].flags & VRING_DESC_F_INDIRECT) { if (desc[i].len % sizeof(struct vring_desc)) errx(1, "Invalid size for indirect buffer table"); @@ -656,8 +716,10 @@ static unsigned wait_for_vq_desc(struct virtqueue *vq, if (desc[i].flags & VRING_DESC_F_WRITE) (*in_num)++; else { - /* If it's an output descriptor, they're all supposed - * to come before any input descriptors. */ + /* + * If it's an output descriptor, they're all supposed + * to come before any input descriptors. + */ if (*in_num) errx(1, "Descriptor has out after in"); (*out_num)++; @@ -671,14 +733,18 @@ static unsigned wait_for_vq_desc(struct virtqueue *vq, return head; } -/* After we've used one of their buffers, we tell them about it. We'll then - * want to send them an interrupt, using trigger_irq(). */ +/* + * After we've used one of their buffers, we tell them about it. We'll then + * want to send them an interrupt, using trigger_irq(). + */ static void add_used(struct virtqueue *vq, unsigned int head, int len) { struct vring_used_elem *used; - /* The virtqueue contains a ring of used buffers. Get a pointer to the - * next entry in that used ring. */ + /* + * The virtqueue contains a ring of used buffers. Get a pointer to the + * next entry in that used ring. + */ used = &vq->vring.used->ring[vq->vring.used->idx % vq->vring.num]; used->id = head; used->len = len; @@ -698,7 +764,8 @@ static void add_used_and_trigger(struct virtqueue *vq, unsigned head, int len) /* * The Console * - * We associate some data with the console for our exit hack. */ + * We associate some data with the console for our exit hack. + */ struct console_abort { /* How many times have they hit ^C? */ @@ -725,20 +792,24 @@ static void console_input(struct virtqueue *vq) if (len <= 0) { /* Ran out of input? */ warnx("Failed to get console input, ignoring console."); - /* For simplicity, dying threads kill the whole Launcher. So - * just nap here. */ + /* + * For simplicity, dying threads kill the whole Launcher. So + * just nap here. + */ for (;;) pause(); } add_used_and_trigger(vq, head, len); - /* Three ^C within one second? Exit. + /* + * Three ^C within one second? Exit. * * This is such a hack, but works surprisingly well. Each ^C has to * be in a buffer by itself, so they can't be too fast. But we check * that we get three within about a second, so they can't be too - * slow. */ + * slow. + */ if (len != 1 || ((char *)iov[0].iov_base)[0] != 3) { abort->count = 0; return; @@ -809,8 +880,7 @@ static bool will_block(int fd) return select(fd+1, &fdset, NULL, NULL, &zero) != 1; } -/* This is where we handle packets coming in from the tun device to our - * Guest. */ +/* This handles packets coming in from the tun device to our Guest. */ static void net_input(struct virtqueue *vq) { int len; @@ -842,8 +912,10 @@ static int do_thread(void *_vq) return 0; } -/* When a child dies, we kill our entire process group with SIGTERM. This - * also has the side effect that the shell restores the console for us! */ +/* + * When a child dies, we kill our entire process group with SIGTERM. This + * also has the side effect that the shell restores the console for us! + */ static void kill_launcher(int signal) { kill(0, SIGTERM); @@ -880,9 +952,10 @@ static void reset_device(struct device *dev) static void create_thread(struct virtqueue *vq) { - /* Create stack for thread and run it. Since stack grows - * upwards, we point the stack pointer to the end of this - * region. */ + /* + * Create stack for thread and run it. Since the stack grows upwards, + * we point the stack pointer to the end of this region. + */ char *stack = malloc(32768); unsigned long args[] = { LHREQ_EVENTFD, vq->config.pfn*getpagesize(), 0 }; @@ -981,8 +1054,11 @@ static void handle_output(unsigned long addr) } } - /* Early console write is done using notify on a nul-terminated string - * in Guest memory. */ + /* + * Early console write is done using notify on a nul-terminated string + * in Guest memory. It's also great for hacking debugging messages + * into a Guest. + */ if (addr >= guest_limit) errx(1, "Bad NOTIFY %#lx", addr); @@ -998,10 +1074,12 @@ static void handle_output(unsigned long addr) * routines to allocate and manage them. */ -/* The layout of the device page is a "struct lguest_device_desc" followed by a +/* + * The layout of the device page is a "struct lguest_device_desc" followed by a * number of virtqueue descriptors, then two sets of feature bits, then an * array of configuration bytes. This routine returns the configuration - * pointer. */ + * pointer. + */ static u8 *device_config(const struct device *dev) { return (void *)(dev->desc + 1) @@ -1009,9 +1087,11 @@ static u8 *device_config(const struct device *dev) + dev->feature_len * 2; } -/* This routine allocates a new "struct lguest_device_desc" from descriptor +/* + * This routine allocates a new "struct lguest_device_desc" from descriptor * table page just above the Guest's normal memory. It returns a pointer to - * that descriptor. */ + * that descriptor. + */ static struct lguest_device_desc *new_dev_desc(u16 type) { struct lguest_device_desc d = { .type = type }; @@ -1032,8 +1112,10 @@ static struct lguest_device_desc *new_dev_desc(u16 type) return memcpy(p, &d, sizeof(d)); } -/* Each device descriptor is followed by the description of its virtqueues. We - * specify how many descriptors the virtqueue is to have. */ +/* + * Each device descriptor is followed by the description of its virtqueues. We + * specify how many descriptors the virtqueue is to have. + */ static void add_virtqueue(struct device *dev, unsigned int num_descs, void (*service)(struct virtqueue *)) { @@ -1061,10 +1143,12 @@ static void add_virtqueue(struct device *dev, unsigned int num_descs, /* Initialize the vring. */ vring_init(&vq->vring, num_descs, p, LGUEST_VRING_ALIGN); - /* Append virtqueue to this device's descriptor. We use + /* + * Append virtqueue to this device's descriptor. We use * device_config() to get the end of the device's current virtqueues; * we check that we haven't added any config or feature information - * yet, otherwise we'd be overwriting them. */ + * yet, otherwise we'd be overwriting them. + */ assert(dev->desc->config_len == 0 && dev->desc->feature_len == 0); memcpy(device_config(dev), &vq->config, sizeof(vq->config)); dev->num_vq++; @@ -1072,14 +1156,18 @@ static void add_virtqueue(struct device *dev, unsigned int num_descs, verbose("Virtqueue page %#lx\n", to_guest_phys(p)); - /* Add to tail of list, so dev->vq is first vq, dev->vq->next is - * second. */ + /* + * Add to tail of list, so dev->vq is first vq, dev->vq->next is + * second. + */ for (i = &dev->vq; *i; i = &(*i)->next); *i = vq; } -/* The first half of the feature bitmask is for us to advertise features. The - * second half is for the Guest to accept features. */ +/* + * The first half of the feature bitmask is for us to advertise features. The + * second half is for the Guest to accept features. + */ static void add_feature(struct device *dev, unsigned bit) { u8 *features = get_feature_bits(dev); @@ -1093,9 +1181,11 @@ static void add_feature(struct device *dev, unsigned bit) features[bit / CHAR_BIT] |= (1 << (bit % CHAR_BIT)); } -/* This routine sets the configuration fields for an existing device's +/* + * This routine sets the configuration fields for an existing device's * descriptor. It only works for the last device, but that's OK because that's - * how we use it. */ + * how we use it. + */ static void set_config(struct device *dev, unsigned len, const void *conf) { /* Check we haven't overflowed our single page. */ @@ -1110,10 +1200,12 @@ static void set_config(struct device *dev, unsigned len, const void *conf) assert(dev->desc->config_len == len); } -/* This routine does all the creation and setup of a new device, including +/* + * This routine does all the creation and setup of a new device, including * calling new_dev_desc() to allocate the descriptor and device memory. * - * See what I mean about userspace being boring? */ + * See what I mean about userspace being boring? + */ static struct device *new_device(const char *name, u16 type) { struct device *dev = malloc(sizeof(*dev)); @@ -1126,10 +1218,12 @@ static struct device *new_device(const char *name, u16 type) dev->num_vq = 0; dev->running = false; - /* Append to device list. Prepending to a single-linked list is + /* + * Append to device list. Prepending to a single-linked list is * easier, but the user expects the devices to be arranged on the bus * in command-line order. The first network device on the command line - * is eth0, the first block device /dev/vda, etc. */ + * is eth0, the first block device /dev/vda, etc. + */ if (devices.lastdev) devices.lastdev->next = dev; else @@ -1139,8 +1233,10 @@ static struct device *new_device(const char *name, u16 type) return dev; } -/* Our first setup routine is the console. It's a fairly simple device, but - * UNIX tty handling makes it uglier than it could be. */ +/* + * Our first setup routine is the console. It's a fairly simple device, but + * UNIX tty handling makes it uglier than it could be. + */ static void setup_console(void) { struct device *dev; @@ -1148,8 +1244,10 @@ static void setup_console(void) /* If we can save the initial standard input settings... */ if (tcgetattr(STDIN_FILENO, &orig_term) == 0) { struct termios term = orig_term; - /* Then we turn off echo, line buffering and ^C etc. We want a - * raw input stream to the Guest. */ + /* + * Then we turn off echo, line buffering and ^C etc: We want a + * raw input stream to the Guest. + */ term.c_lflag &= ~(ISIG|ICANON|ECHO); tcsetattr(STDIN_FILENO, TCSANOW, &term); } @@ -1160,10 +1258,12 @@ static void setup_console(void) dev->priv = malloc(sizeof(struct console_abort)); ((struct console_abort *)dev->priv)->count = 0; - /* The console needs two virtqueues: the input then the output. When + /* + * The console needs two virtqueues: the input then the output. When * they put something the input queue, we make sure we're listening to * stdin. When they put something in the output queue, we write it to - * stdout. */ + * stdout. + */ add_virtqueue(dev, VIRTQUEUE_NUM, console_input); add_virtqueue(dev, VIRTQUEUE_NUM, console_output); @@ -1171,7 +1271,8 @@ static void setup_console(void) } /*:*/ -/*M:010 Inter-guest networking is an interesting area. Simplest is to have a +/*M:010 + * Inter-guest networking is an interesting area. Simplest is to have a * --sharenet= option which opens or creates a named pipe. This can be * used to send packets to another guest in a 1:1 manner. * @@ -1185,7 +1286,8 @@ static void setup_console(void) * multiple inter-guest channels behind one interface, although it would * require some manner of hotplugging new virtio channels. * - * Finally, we could implement a virtio network switch in the kernel. :*/ + * Finally, we could implement a virtio network switch in the kernel. +:*/ static u32 str2ip(const char *ipaddr) { @@ -1210,11 +1312,13 @@ static void str2mac(const char *macaddr, unsigned char mac[6]) mac[5] = m[5]; } -/* This code is "adapted" from libbridge: it attaches the Host end of the +/* + * This code is "adapted" from libbridge: it attaches the Host end of the * network device to the bridge device specified by the command line. * * This is yet another James Morris contribution (I'm an IP-level guy, so I - * dislike bridging), and I just try not to break it. */ + * dislike bridging), and I just try not to break it. + */ static void add_to_bridge(int fd, const char *if_name, const char *br_name) { int ifidx; @@ -1234,9 +1338,11 @@ static void add_to_bridge(int fd, const char *if_name, const char *br_name) err(1, "can't add %s to bridge %s", if_name, br_name); } -/* This sets up the Host end of the network device with an IP address, brings +/* + * This sets up the Host end of the network device with an IP address, brings * it up so packets will flow, the copies the MAC address into the hwaddr - * pointer. */ + * pointer. + */ static void configure_device(int fd, const char *tapif, u32 ipaddr) { struct ifreq ifr; @@ -1263,10 +1369,12 @@ static int get_tun_device(char tapif[IFNAMSIZ]) /* Start with this zeroed. Messy but sure. */ memset(&ifr, 0, sizeof(ifr)); - /* We open the /dev/net/tun device and tell it we want a tap device. A + /* + * We open the /dev/net/tun device and tell it we want a tap device. A * tap device is like a tun device, only somehow different. To tell * the truth, I completely blundered my way through this code, but it - * works now! */ + * works now! + */ netfd = open_or_die("/dev/net/tun", O_RDWR); ifr.ifr_flags = IFF_TAP | IFF_NO_PI | IFF_VNET_HDR; strcpy(ifr.ifr_name, "tap%d"); @@ -1277,18 +1385,22 @@ static int get_tun_device(char tapif[IFNAMSIZ]) TUN_F_CSUM|TUN_F_TSO4|TUN_F_TSO6|TUN_F_TSO_ECN) != 0) err(1, "Could not set features for tun device"); - /* We don't need checksums calculated for packets coming in this - * device: trust us! */ + /* + * We don't need checksums calculated for packets coming in this + * device: trust us! + */ ioctl(netfd, TUNSETNOCSUM, 1); memcpy(tapif, ifr.ifr_name, IFNAMSIZ); return netfd; } -/*L:195 Our network is a Host<->Guest network. This can either use bridging or +/*L:195 + * Our network is a Host<->Guest network. This can either use bridging or * routing, but the principle is the same: it uses the "tun" device to inject * packets into the Host as if they came in from a normal network card. We - * just shunt packets between the Guest and the tun device. */ + * just shunt packets between the Guest and the tun device. + */ static void setup_tun_net(char *arg) { struct device *dev; @@ -1305,13 +1417,14 @@ static void setup_tun_net(char *arg) dev = new_device("net", VIRTIO_ID_NET); dev->priv = net_info; - /* Network devices need a receive and a send queue, just like - * console. */ + /* Network devices need a recv and a send queue, just like console. */ add_virtqueue(dev, VIRTQUEUE_NUM, net_input); add_virtqueue(dev, VIRTQUEUE_NUM, net_output); - /* We need a socket to perform the magic network ioctls to bring up the - * tap interface, connect to the bridge etc. Any socket will do! */ + /* + * We need a socket to perform the magic network ioctls to bring up the + * tap interface, connect to the bridge etc. Any socket will do! + */ ipfd = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP); if (ipfd < 0) err(1, "opening IP socket"); @@ -1366,7 +1479,8 @@ static void setup_tun_net(char *arg) devices.device_num, tapif, arg); } -/* Our block (disk) device should be really simple: the Guest asks for a block +/* + * Our block (disk) device should be really simple: the Guest asks for a block * number and we read or write that position in the file. Unfortunately, that * was amazingly slow: the Guest waits until the read is finished before * running anything else, even if it could have been doing useful work. @@ -1374,7 +1488,9 @@ static void setup_tun_net(char *arg) * We could use async I/O, except it's reputed to suck so hard that characters * actually go missing from your code when you try to use it. * - * So we farm the I/O out to thread, and communicate with it via a pipe. */ + * So this was one reason why lguest now does all virtqueue servicing in + * separate threads: it's more efficient and more like a real device. + */ /* This hangs off device->priv. */ struct vblk_info @@ -1412,9 +1528,11 @@ static void blk_request(struct virtqueue *vq) /* Get the next request. */ head = wait_for_vq_desc(vq, iov, &out_num, &in_num); - /* Every block request should contain at least one output buffer + /* + * Every block request should contain at least one output buffer * (detailing the location on disk and the type of request) and one - * input buffer (to hold the result). */ + * input buffer (to hold the result). + */ if (out_num == 0 || in_num == 0) errx(1, "Bad virtblk cmd %u out=%u in=%u", head, out_num, in_num); @@ -1423,33 +1541,41 @@ static void blk_request(struct virtqueue *vq) in = convert(&iov[out_num+in_num-1], u8); off = out->sector * 512; - /* The block device implements "barriers", where the Guest indicates + /* + * The block device implements "barriers", where the Guest indicates * that it wants all previous writes to occur before this write. We * don't have a way of asking our kernel to do a barrier, so we just - * synchronize all the data in the file. Pretty poor, no? */ + * synchronize all the data in the file. Pretty poor, no? + */ if (out->type & VIRTIO_BLK_T_BARRIER) fdatasync(vblk->fd); - /* In general the virtio block driver is allowed to try SCSI commands. - * It'd be nice if we supported eject, for example, but we don't. */ + /* + * In general the virtio block driver is allowed to try SCSI commands. + * It'd be nice if we supported eject, for example, but we don't. + */ if (out->type & VIRTIO_BLK_T_SCSI_CMD) { fprintf(stderr, "Scsi commands unsupported\n"); *in = VIRTIO_BLK_S_UNSUPP; wlen = sizeof(*in); } else if (out->type & VIRTIO_BLK_T_OUT) { - /* Write */ - - /* Move to the right location in the block file. This can fail - * if they try to write past end. */ + /* + * Write + * + * Move to the right location in the block file. This can fail + * if they try to write past end. + */ if (lseek64(vblk->fd, off, SEEK_SET) != off) err(1, "Bad seek to sector %llu", out->sector); ret = writev(vblk->fd, iov+1, out_num-1); verbose("WRITE to sector %llu: %i\n", out->sector, ret); - /* Grr... Now we know how long the descriptor they sent was, we + /* + * Grr... Now we know how long the descriptor they sent was, we * make sure they didn't try to write over the end of the block - * file (possibly extending it). */ + * file (possibly extending it). + */ if (ret > 0 && off + ret > vblk->len) { /* Trim it back to the correct length */ ftruncate64(vblk->fd, vblk->len); @@ -1459,10 +1585,12 @@ static void blk_request(struct virtqueue *vq) wlen = sizeof(*in); *in = (ret >= 0 ? VIRTIO_BLK_S_OK : VIRTIO_BLK_S_IOERR); } else { - /* Read */ - - /* Move to the right location in the block file. This can fail - * if they try to read past end. */ + /* + * Read + * + * Move to the right location in the block file. This can fail + * if they try to read past end. + */ if (lseek64(vblk->fd, off, SEEK_SET) != off) err(1, "Bad seek to sector %llu", out->sector); @@ -1477,10 +1605,12 @@ static void blk_request(struct virtqueue *vq) } } - /* OK, so we noted that it was pretty poor to use an fdatasync as a + /* + * OK, so we noted that it was pretty poor to use an fdatasync as a * barrier. But Christoph Hellwig points out that we need a sync * *afterwards* as well: "Barriers specify no reordering to the front - * or the back." And Jens Axboe confirmed it, so here we are: */ + * or the back." And Jens Axboe confirmed it, so here we are: + */ if (out->type & VIRTIO_BLK_T_BARRIER) fdatasync(vblk->fd); @@ -1494,7 +1624,7 @@ static void setup_block_file(const char *filename) struct vblk_info *vblk; struct virtio_blk_config conf; - /* The device responds to return from I/O thread. */ + /* Creat the device. */ dev = new_device("block", VIRTIO_ID_BLOCK); /* The device has one virtqueue, where the Guest places requests. */ @@ -1513,8 +1643,10 @@ static void setup_block_file(const char *filename) /* Tell Guest how many sectors this device has. */ conf.capacity = cpu_to_le64(vblk->len / 512); - /* Tell Guest not to put in too many descriptors at once: two are used - * for the in and out elements. */ + /* + * Tell Guest not to put in too many descriptors at once: two are used + * for the in and out elements. + */ add_feature(dev, VIRTIO_BLK_F_SEG_MAX); conf.seg_max = cpu_to_le32(VIRTQUEUE_NUM - 2); @@ -1525,16 +1657,18 @@ static void setup_block_file(const char *filename) ++devices.device_num, le64_to_cpu(conf.capacity)); } -struct rng_info { - int rfd; -}; - -/* Our random number generator device reads from /dev/random into the Guest's +/*L:211 + * Our random number generator device reads from /dev/random into the Guest's * input buffers. The usual case is that the Guest doesn't want random numbers * and so has no buffers although /dev/random is still readable, whereas * console is the reverse. * - * The same logic applies, however. */ + * The same logic applies, however. + */ +struct rng_info { + int rfd; +}; + static void rng_input(struct virtqueue *vq) { int len; @@ -1547,9 +1681,11 @@ static void rng_input(struct virtqueue *vq) if (out_num) errx(1, "Output buffers in rng?"); - /* This is why we convert to iovecs: the readv() call uses them, and so + /* + * This is why we convert to iovecs: the readv() call uses them, and so * it reads straight into the Guest's buffer. We loop to make sure we - * fill it. */ + * fill it. + */ while (!iov_empty(iov, in_num)) { len = readv(rng_info->rfd, iov, in_num); if (len <= 0) @@ -1562,15 +1698,18 @@ static void rng_input(struct virtqueue *vq) add_used(vq, head, totlen); } -/* And this creates a "hardware" random number device for the Guest. */ +/*L:199 + * This creates a "hardware" random number device for the Guest. + */ static void setup_rng(void) { struct device *dev; struct rng_info *rng_info = malloc(sizeof(*rng_info)); + /* Our device's privat info simply contains the /dev/random fd. */ rng_info->rfd = open_or_die("/dev/random", O_RDONLY); - /* The device responds to return from I/O thread. */ + /* Create the new device. */ dev = new_device("rng", VIRTIO_ID_RNG); dev->priv = rng_info; @@ -1586,8 +1725,10 @@ static void __attribute__((noreturn)) restart_guest(void) { unsigned int i; - /* Since we don't track all open fds, we simply close everything beyond - * stderr. */ + /* + * Since we don't track all open fds, we simply close everything beyond + * stderr. + */ for (i = 3; i < FD_SETSIZE; i++) close(i); @@ -1598,8 +1739,10 @@ static void __attribute__((noreturn)) restart_guest(void) err(1, "Could not exec %s", main_args[0]); } -/*L:220 Finally we reach the core of the Launcher which runs the Guest, serves - * its input and output, and finally, lays it to rest. */ +/*L:220 + * Finally we reach the core of the Launcher which runs the Guest, serves + * its input and output, and finally, lays it to rest. + */ static void __attribute__((noreturn)) run_guest(void) { for (;;) { @@ -1634,7 +1777,7 @@ static void __attribute__((noreturn)) run_guest(void) * * Are you ready? Take a deep breath and join me in the core of the Host, in * "make Host". - :*/ +:*/ static struct option opts[] = { { "verbose", 0, NULL, 'v' }, @@ -1655,8 +1798,7 @@ static void usage(void) /*L:105 The main routine is where the real work begins: */ int main(int argc, char *argv[]) { - /* Memory, top-level pagetable, code startpoint and size of the - * (optional) initrd. */ + /* Memory, code startpoint and size of the (optional) initrd. */ unsigned long mem = 0, start, initrd_size = 0; /* Two temporaries. */ int i, c; @@ -1668,24 +1810,30 @@ int main(int argc, char *argv[]) /* Save the args: we "reboot" by execing ourselves again. */ main_args = argv; - /* First we initialize the device list. We keep a pointer to the last + /* + * First we initialize the device list. We keep a pointer to the last * device, and the next interrupt number to use for devices (1: - * remember that 0 is used by the timer). */ + * remember that 0 is used by the timer). + */ devices.lastdev = NULL; devices.next_irq = 1; cpu_id = 0; - /* We need to know how much memory so we can set up the device + /* + * We need to know how much memory so we can set up the device * descriptor and memory pages for the devices as we parse the command * line. So we quickly look through the arguments to find the amount - * of memory now. */ + * of memory now. + */ for (i = 1; i < argc; i++) { if (argv[i][0] != '-') { mem = atoi(argv[i]) * 1024 * 1024; - /* We start by mapping anonymous pages over all of + /* + * We start by mapping anonymous pages over all of * guest-physical memory range. This fills it with 0, * and ensures that the Guest won't be killed when it - * tries to access it. */ + * tries to access it. + */ guest_base = map_zeroed_pages(mem / getpagesize() + DEVICE_PAGES); guest_limit = mem; @@ -1718,8 +1866,10 @@ int main(int argc, char *argv[]) usage(); } } - /* After the other arguments we expect memory and kernel image name, - * followed by command line arguments for the kernel. */ + /* + * After the other arguments we expect memory and kernel image name, + * followed by command line arguments for the kernel. + */ if (optind + 2 > argc) usage(); @@ -1737,20 +1887,26 @@ int main(int argc, char *argv[]) /* Map the initrd image if requested (at top of physical memory) */ if (initrd_name) { initrd_size = load_initrd(initrd_name, mem); - /* These are the location in the Linux boot header where the - * start and size of the initrd are expected to be found. */ + /* + * These are the location in the Linux boot header where the + * start and size of the initrd are expected to be found. + */ boot->hdr.ramdisk_image = mem - initrd_size; boot->hdr.ramdisk_size = initrd_size; /* The bootloader type 0xFF means "unknown"; that's OK. */ boot->hdr.type_of_loader = 0xFF; } - /* The Linux boot header contains an "E820" memory map: ours is a - * simple, single region. */ + /* + * The Linux boot header contains an "E820" memory map: ours is a + * simple, single region. + */ boot->e820_entries = 1; boot->e820_map[0] = ((struct e820entry) { 0, mem, E820_RAM }); - /* The boot header contains a command line pointer: we put the command - * line after the boot header. */ + /* + * The boot header contains a command line pointer: we put the command + * line after the boot header. + */ boot->hdr.cmd_line_ptr = to_guest_phys(boot + 1); /* We use a simple helper to copy the arguments separated by spaces. */ concat((char *)(boot + 1), argv+optind+2); @@ -1764,8 +1920,10 @@ int main(int argc, char *argv[]) /* Tell the entry path not to try to reload segment registers. */ boot->hdr.loadflags |= KEEP_SEGMENTS; - /* We tell the kernel to initialize the Guest: this returns the open - * /dev/lguest file descriptor. */ + /* + * We tell the kernel to initialize the Guest: this returns the open + * /dev/lguest file descriptor. + */ tell_kernel(start); /* Ensure that we terminate if a child dies. */ diff --git a/arch/x86/include/asm/lguest.h b/arch/x86/include/asm/lguest.h index 313389cd50d..5136dad57cb 100644 --- a/arch/x86/include/asm/lguest.h +++ b/arch/x86/include/asm/lguest.h @@ -17,8 +17,7 @@ /* Pages for switcher itself, then two pages per cpu */ #define TOTAL_SWITCHER_PAGES (SHARED_SWITCHER_PAGES + 2 * nr_cpu_ids) -/* We map at -4M (-2M when PAE is activated) for ease of mapping - * into the guest (one PTE page). */ +/* We map at -4M (-2M for PAE) for ease of mapping (one PTE page). */ #ifdef CONFIG_X86_PAE #define SWITCHER_ADDR 0xFFE00000 #else diff --git a/arch/x86/include/asm/lguest_hcall.h b/arch/x86/include/asm/lguest_hcall.h index 33600a66755..cceb73e12e5 100644 --- a/arch/x86/include/asm/lguest_hcall.h +++ b/arch/x86/include/asm/lguest_hcall.h @@ -30,7 +30,8 @@ #include #include -/*G:030 But first, how does our Guest contact the Host to ask for privileged +/*G:030 + * But first, how does our Guest contact the Host to ask for privileged * operations? There are two ways: the direct way is to make a "hypercall", * to make requests of the Host Itself. * @@ -41,16 +42,15 @@ * * Grossly invalid calls result in Sudden Death at the hands of the vengeful * Host, rather than returning failure. This reflects Winston Churchill's - * definition of a gentleman: "someone who is only rude intentionally". */ -/*:*/ + * definition of a gentleman: "someone who is only rude intentionally". +:*/ /* Can't use our min() macro here: needs to be a constant */ #define LGUEST_IRQS (NR_IRQS < 32 ? NR_IRQS: 32) #define LHCALL_RING_SIZE 64 struct hcall_args { - /* These map directly onto eax, ebx, ecx, edx and esi - * in struct lguest_regs */ + /* These map directly onto eax/ebx/ecx/edx/esi in struct lguest_regs */ unsigned long arg0, arg1, arg2, arg3, arg4; }; diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c index f2bf1f73d46..025c04d18f2 100644 --- a/arch/x86/lguest/boot.c +++ b/arch/x86/lguest/boot.c @@ -22,7 +22,8 @@ * * So how does the kernel know it's a Guest? We'll see that later, but let's * just say that we end up here where we replace the native functions various - * "paravirt" structures with our Guest versions, then boot like normal. :*/ + * "paravirt" structures with our Guest versions, then boot like normal. +:*/ /* * Copyright (C) 2006, Rusty Russell IBM Corporation. @@ -74,7 +75,8 @@ * * The Guest in our tale is a simple creature: identical to the Host but * behaving in simplified but equivalent ways. In particular, the Guest is the - * same kernel as the Host (or at least, built from the same source code). :*/ + * same kernel as the Host (or at least, built from the same source code). +:*/ struct lguest_data lguest_data = { .hcall_status = { [0 ... LHCALL_RING_SIZE-1] = 0xFF }, @@ -85,7 +87,8 @@ struct lguest_data lguest_data = { .syscall_vec = SYSCALL_VECTOR, }; -/*G:037 async_hcall() is pretty simple: I'm quite proud of it really. We have a +/*G:037 + * async_hcall() is pretty simple: I'm quite proud of it really. We have a * ring buffer of stored hypercalls which the Host will run though next time we * do a normal hypercall. Each entry in the ring has 5 slots for the hypercall * arguments, and a "hcall_status" word which is 0 if the call is ready to go, @@ -94,7 +97,8 @@ struct lguest_data lguest_data = { * If we come around to a slot which hasn't been finished, then the table is * full and we just make the hypercall directly. This has the nice side * effect of causing the Host to run all the stored calls in the ring buffer - * which empties it for next time! */ + * which empties it for next time! + */ static void async_hcall(unsigned long call, unsigned long arg1, unsigned long arg2, unsigned long arg3, unsigned long arg4) @@ -103,9 +107,11 @@ static void async_hcall(unsigned long call, unsigned long arg1, static unsigned int next_call; unsigned long flags; - /* Disable interrupts if not already disabled: we don't want an + /* + * Disable interrupts if not already disabled: we don't want an * interrupt handler making a hypercall while we're already doing - * one! */ + * one! + */ local_irq_save(flags); if (lguest_data.hcall_status[next_call] != 0xFF) { /* Table full, so do normal hcall which will flush table. */ @@ -125,8 +131,9 @@ static void async_hcall(unsigned long call, unsigned long arg1, local_irq_restore(flags); } -/*G:035 Notice the lazy_hcall() above, rather than hcall(). This is our first - * real optimization trick! +/*G:035 + * Notice the lazy_hcall() above, rather than hcall(). This is our first real + * optimization trick! * * When lazy_mode is set, it means we're allowed to defer all hypercalls and do * them as a batch when lazy_mode is eventually turned off. Because hypercalls @@ -136,7 +143,8 @@ static void async_hcall(unsigned long call, unsigned long arg1, * lguest_leave_lazy_mode(). * * So, when we're in lazy mode, we call async_hcall() to store the call for - * future processing: */ + * future processing: + */ static void lazy_hcall1(unsigned long call, unsigned long arg1) { @@ -208,9 +216,11 @@ static void lguest_end_context_switch(struct task_struct *next) * check there before it tries to deliver an interrupt. */ -/* save_flags() is expected to return the processor state (ie. "flags"). The +/* + * save_flags() is expected to return the processor state (ie. "flags"). The * flags word contains all kind of stuff, but in practice Linux only cares - * about the interrupt flag. Our "save_flags()" just returns that. */ + * about the interrupt flag. Our "save_flags()" just returns that. + */ static unsigned long save_fl(void) { return lguest_data.irq_enabled; @@ -222,13 +232,15 @@ static void irq_disable(void) lguest_data.irq_enabled = 0; } -/* Let's pause a moment. Remember how I said these are called so often? +/* + * Let's pause a moment. Remember how I said these are called so often? * Jeremy Fitzhardinge optimized them so hard early in 2009 that he had to * break some rules. In particular, these functions are assumed to save their * own registers if they need to: normal C functions assume they can trash the * eax register. To use normal C functions, we use * PV_CALLEE_SAVE_REGS_THUNK(), which pushes %eax onto the stack, calls the - * C function, then restores it. */ + * C function, then restores it. + */ PV_CALLEE_SAVE_REGS_THUNK(save_fl); PV_CALLEE_SAVE_REGS_THUNK(irq_disable); /*:*/ @@ -237,18 +249,20 @@ PV_CALLEE_SAVE_REGS_THUNK(irq_disable); extern void lg_irq_enable(void); extern void lg_restore_fl(unsigned long flags); -/*M:003 Note that we don't check for outstanding interrupts when we re-enable - * them (or when we unmask an interrupt). This seems to work for the moment, - * since interrupts are rare and we'll just get the interrupt on the next timer - * tick, but now we can run with CONFIG_NO_HZ, we should revisit this. One way - * would be to put the "irq_enabled" field in a page by itself, and have the - * Host write-protect it when an interrupt comes in when irqs are disabled. - * There will then be a page fault as soon as interrupts are re-enabled. +/*M:003 + * Note that we don't check for outstanding interrupts when we re-enable them + * (or when we unmask an interrupt). This seems to work for the moment, since + * interrupts are rare and we'll just get the interrupt on the next timer tick, + * but now we can run with CONFIG_NO_HZ, we should revisit this. One way would + * be to put the "irq_enabled" field in a page by itself, and have the Host + * write-protect it when an interrupt comes in when irqs are disabled. There + * will then be a page fault as soon as interrupts are re-enabled. * * A better method is to implement soft interrupt disable generally for x86: * instead of disabling interrupts, we set a flag. If an interrupt does come * in, we then disable them for real. This is uncommon, so we could simply use - * a hypercall for interrupt control and not worry about efficiency. :*/ + * a hypercall for interrupt control and not worry about efficiency. +:*/ /*G:034 * The Interrupt Descriptor Table (IDT). @@ -261,10 +275,12 @@ extern void lg_restore_fl(unsigned long flags); static void lguest_write_idt_entry(gate_desc *dt, int entrynum, const gate_desc *g) { - /* The gate_desc structure is 8 bytes long: we hand it to the Host in + /* + * The gate_desc structure is 8 bytes long: we hand it to the Host in * two 32-bit chunks. The whole 32-bit kernel used to hand descriptors * around like this; typesafety wasn't a big concern in Linux's early - * years. */ + * years. + */ u32 *desc = (u32 *)g; /* Keep the local copy up to date. */ native_write_idt_entry(dt, entrynum, g); @@ -272,9 +288,11 @@ static void lguest_write_idt_entry(gate_desc *dt, kvm_hypercall3(LHCALL_LOAD_IDT_ENTRY, entrynum, desc[0], desc[1]); } -/* Changing to a different IDT is very rare: we keep the IDT up-to-date every +/* + * Changing to a different IDT is very rare: we keep the IDT up-to-date every * time it is written, so we can simply loop through all entries and tell the - * Host about them. */ + * Host about them. + */ static void lguest_load_idt(const struct desc_ptr *desc) { unsigned int i; @@ -305,9 +323,11 @@ static void lguest_load_gdt(const struct desc_ptr *desc) kvm_hypercall3(LHCALL_LOAD_GDT_ENTRY, i, gdt[i].a, gdt[i].b); } -/* For a single GDT entry which changes, we do the lazy thing: alter our GDT, +/* + * For a single GDT entry which changes, we do the lazy thing: alter our GDT, * then tell the Host to reload the entire thing. This operation is so rare - * that this naive implementation is reasonable. */ + * that this naive implementation is reasonable. + */ static void lguest_write_gdt_entry(struct desc_struct *dt, int entrynum, const void *desc, int type) { @@ -317,29 +337,36 @@ static void lguest_write_gdt_entry(struct desc_struct *dt, int entrynum, dt[entrynum].a, dt[entrynum].b); } -/* OK, I lied. There are three "thread local storage" GDT entries which change +/* + * OK, I lied. There are three "thread local storage" GDT entries which change * on every context switch (these three entries are how glibc implements - * __thread variables). So we have a hypercall specifically for this case. */ + * __thread variables). So we have a hypercall specifically for this case. + */ static void lguest_load_tls(struct thread_struct *t, unsigned int cpu) { - /* There's one problem which normal hardware doesn't have: the Host + /* + * There's one problem which normal hardware doesn't have: the Host * can't handle us removing entries we're currently using. So we clear - * the GS register here: if it's needed it'll be reloaded anyway. */ + * the GS register here: if it's needed it'll be reloaded anyway. + */ lazy_load_gs(0); lazy_hcall2(LHCALL_LOAD_TLS, __pa(&t->tls_array), cpu); } -/*G:038 That's enough excitement for now, back to ploughing through each of - * the different pv_ops structures (we're about 1/3 of the way through). +/*G:038 + * That's enough excitement for now, back to ploughing through each of the + * different pv_ops structures (we're about 1/3 of the way through). * * This is the Local Descriptor Table, another weird Intel thingy. Linux only * uses this for some strange applications like Wine. We don't do anything - * here, so they'll get an informative and friendly Segmentation Fault. */ + * here, so they'll get an informative and friendly Segmentation Fault. + */ static void lguest_set_ldt(const void *addr, unsigned entries) { } -/* This loads a GDT entry into the "Task Register": that entry points to a +/* + * This loads a GDT entry into the "Task Register": that entry points to a * structure called the Task State Segment. Some comments scattered though the * kernel code indicate that this used for task switching in ages past, along * with blood sacrifice and astrology. @@ -347,19 +374,21 @@ static void lguest_set_ldt(const void *addr, unsigned entries) * Now there's nothing interesting in here that we don't get told elsewhere. * But the native version uses the "ltr" instruction, which makes the Host * complain to the Guest about a Segmentation Fault and it'll oops. So we - * override the native version with a do-nothing version. */ + * override the native version with a do-nothing version. + */ static void lguest_load_tr_desc(void) { } -/* The "cpuid" instruction is a way of querying both the CPU identity +/* + * The "cpuid" instruction is a way of querying both the CPU identity * (manufacturer, model, etc) and its features. It was introduced before the * Pentium in 1993 and keeps getting extended by both Intel, AMD and others. * As you might imagine, after a decade and a half this treatment, it is now a * giant ball of hair. Its entry in the current Intel manual runs to 28 pages. * * This instruction even it has its own Wikipedia entry. The Wikipedia entry - * has been translated into 4 languages. I am not making this up! + * has been translated into 5 languages. I am not making this up! * * We could get funky here and identify ourselves as "GenuineLguest", but * instead we just use the real "cpuid" instruction. Then I pretty much turned @@ -371,7 +400,8 @@ static void lguest_load_tr_desc(void) * Replacing the cpuid so we can turn features off is great for the kernel, but * anyone (including userspace) can just use the raw "cpuid" instruction and * the Host won't even notice since it isn't privileged. So we try not to get - * too worked up about it. */ + * too worked up about it. + */ static void lguest_cpuid(unsigned int *ax, unsigned int *bx, unsigned int *cx, unsigned int *dx) { @@ -379,43 +409,63 @@ static void lguest_cpuid(unsigned int *ax, unsigned int *bx, native_cpuid(ax, bx, cx, dx); switch (function) { - case 0: /* ID and highest CPUID. Futureproof a little by sticking to - * older ones. */ + /* + * CPUID 0 gives the highest legal CPUID number (and the ID string). + * We futureproof our code a little by sticking to known CPUID values. + */ + case 0: if (*ax > 5) *ax = 5; break; - case 1: /* Basic feature request. */ - /* We only allow kernel to see SSE3, CMPXCHG16B and SSSE3 */ + + /* + * CPUID 1 is a basic feature request. + * + * CX: we only allow kernel to see SSE3, CMPXCHG16B and SSSE3 + * DX: SSE, SSE2, FXSR, MMX, CMOV, CMPXCHG8B, TSC, FPU and PAE. + */ + case 1: *cx &= 0x00002201; - /* SSE, SSE2, FXSR, MMX, CMOV, CMPXCHG8B, TSC, FPU, PAE. */ *dx &= 0x07808151; - /* The Host can do a nice optimization if it knows that the + /* + * The Host can do a nice optimization if it knows that the * kernel mappings (addresses above 0xC0000000 or whatever * PAGE_OFFSET is set to) haven't changed. But Linux calls * flush_tlb_user() for both user and kernel mappings unless - * the Page Global Enable (PGE) feature bit is set. */ + * the Page Global Enable (PGE) feature bit is set. + */ *dx |= 0x00002000; - /* We also lie, and say we're family id 5. 6 or greater + /* + * We also lie, and say we're family id 5. 6 or greater * leads to a rdmsr in early_init_intel which we can't handle. - * Family ID is returned as bits 8-12 in ax. */ + * Family ID is returned as bits 8-12 in ax. + */ *ax &= 0xFFFFF0FF; *ax |= 0x00000500; break; + /* + * 0x80000000 returns the highest Extended Function, so we futureproof + * like we do above by limiting it to known fields. + */ case 0x80000000: - /* Futureproof this a little: if they ask how much extended - * processor information there is, limit it to known fields. */ if (*ax > 0x80000008) *ax = 0x80000008; break; + + /* + * PAE systems can mark pages as non-executable. Linux calls this the + * NX bit. Intel calls it XD (eXecute Disable), AMD EVP (Enhanced + * Virus Protection). We just switch turn if off here, since we don't + * support it. + */ case 0x80000001: - /* Here we should fix nx cap depending on host. */ - /* For this version of PAE, we just clear NX bit. */ *dx &= ~(1 << 20); break; } } -/* Intel has four control registers, imaginatively named cr0, cr2, cr3 and cr4. +/* + * Intel has four control registers, imaginatively named cr0, cr2, cr3 and cr4. * I assume there's a cr1, but it hasn't bothered us yet, so we'll not bother * it. The Host needs to know when the Guest wants to change them, so we have * a whole series of functions like read_cr0() and write_cr0(). @@ -430,7 +480,8 @@ static void lguest_cpuid(unsigned int *ax, unsigned int *bx, * name like "FPUTRAP bit" be a little less cryptic? * * We store cr0 locally because the Host never changes it. The Guest sometimes - * wants to read it and we'd prefer not to bother the Host unnecessarily. */ + * wants to read it and we'd prefer not to bother the Host unnecessarily. + */ static unsigned long current_cr0; static void lguest_write_cr0(unsigned long val) { @@ -443,18 +494,22 @@ static unsigned long lguest_read_cr0(void) return current_cr0; } -/* Intel provided a special instruction to clear the TS bit for people too cool +/* + * Intel provided a special instruction to clear the TS bit for people too cool * to use write_cr0() to do it. This "clts" instruction is faster, because all - * the vowels have been optimized out. */ + * the vowels have been optimized out. + */ static void lguest_clts(void) { lazy_hcall1(LHCALL_TS, 0); current_cr0 &= ~X86_CR0_TS; } -/* cr2 is the virtual address of the last page fault, which the Guest only ever +/* + * cr2 is the virtual address of the last page fault, which the Guest only ever * reads. The Host kindly writes this into our "struct lguest_data", so we - * just read it out of there. */ + * just read it out of there. + */ static unsigned long lguest_read_cr2(void) { return lguest_data.cr2; @@ -463,10 +518,12 @@ static unsigned long lguest_read_cr2(void) /* See lguest_set_pte() below. */ static bool cr3_changed = false; -/* cr3 is the current toplevel pagetable page: the principle is the same as +/* + * cr3 is the current toplevel pagetable page: the principle is the same as * cr0. Keep a local copy, and tell the Host when it changes. The only * difference is that our local copy is in lguest_data because the Host needs - * to set it upon our initial hypercall. */ + * to set it upon our initial hypercall. + */ static void lguest_write_cr3(unsigned long cr3) { lguest_data.pgdir = cr3; @@ -538,10 +595,12 @@ static void lguest_write_cr4(unsigned long val) * the real page tables based on the Guests'. */ -/* The Guest calls this to set a second-level entry (pte), ie. to map a page +/* + * The Guest calls this to set a second-level entry (pte), ie. to map a page * into a process' address space. We set the entry then tell the Host the * toplevel and address this corresponds to. The Guest uses one pagetable per - * process, so we need to tell the Host which one we're changing (mm->pgd). */ + * process, so we need to tell the Host which one we're changing (mm->pgd). + */ static void lguest_pte_update(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { @@ -560,10 +619,13 @@ static void lguest_set_pte_at(struct mm_struct *mm, unsigned long addr, lguest_pte_update(mm, addr, ptep); } -/* The Guest calls lguest_set_pud to set a top-level entry and lguest_set_pmd +/* + * The Guest calls lguest_set_pud to set a top-level entry and lguest_set_pmd * to set a middle-level entry when PAE is activated. + * * Again, we set the entry then tell the Host which page we changed, - * and the index of the entry we changed. */ + * and the index of the entry we changed. + */ #ifdef CONFIG_X86_PAE static void lguest_set_pud(pud_t *pudp, pud_t pudval) { @@ -582,8 +644,7 @@ static void lguest_set_pmd(pmd_t *pmdp, pmd_t pmdval) } #else -/* The Guest calls lguest_set_pmd to set a top-level entry when PAE is not - * activated. */ +/* The Guest calls lguest_set_pmd to set a top-level entry when !PAE. */ static void lguest_set_pmd(pmd_t *pmdp, pmd_t pmdval) { native_set_pmd(pmdp, pmdval); @@ -592,7 +653,8 @@ static void lguest_set_pmd(pmd_t *pmdp, pmd_t pmdval) } #endif -/* There are a couple of legacy places where the kernel sets a PTE, but we +/* + * There are a couple of legacy places where the kernel sets a PTE, but we * don't know the top level any more. This is useless for us, since we don't * know which pagetable is changing or what address, so we just tell the Host * to forget all of them. Fortunately, this is very rare. @@ -600,7 +662,8 @@ static void lguest_set_pmd(pmd_t *pmdp, pmd_t pmdval) * ... except in early boot when the kernel sets up the initial pagetables, * which makes booting astonishingly slow: 1.83 seconds! So we don't even tell * the Host anything changed until we've done the first page table switch, - * which brings boot back to 0.25 seconds. */ + * which brings boot back to 0.25 seconds. + */ static void lguest_set_pte(pte_t *ptep, pte_t pteval) { native_set_pte(ptep, pteval); @@ -628,7 +691,8 @@ void lguest_pmd_clear(pmd_t *pmdp) } #endif -/* Unfortunately for Lguest, the pv_mmu_ops for page tables were based on +/* + * Unfortunately for Lguest, the pv_mmu_ops for page tables were based on * native page table operations. On native hardware you can set a new page * table entry whenever you want, but if you want to remove one you have to do * a TLB flush (a TLB is a little cache of page table entries kept by the CPU). @@ -637,24 +701,29 @@ void lguest_pmd_clear(pmd_t *pmdp) * called when a valid entry is written, not when it's removed (ie. marked not * present). Instead, this is where we come when the Guest wants to remove a * page table entry: we tell the Host to set that entry to 0 (ie. the present - * bit is zero). */ + * bit is zero). + */ static void lguest_flush_tlb_single(unsigned long addr) { /* Simply set it to zero: if it was not, it will fault back in. */ lazy_hcall3(LHCALL_SET_PTE, lguest_data.pgdir, addr, 0); } -/* This is what happens after the Guest has removed a large number of entries. +/* + * This is what happens after the Guest has removed a large number of entries. * This tells the Host that any of the page table entries for userspace might - * have changed, ie. virtual addresses below PAGE_OFFSET. */ + * have changed, ie. virtual addresses below PAGE_OFFSET. + */ static void lguest_flush_tlb_user(void) { lazy_hcall1(LHCALL_FLUSH_TLB, 0); } -/* This is called when the kernel page tables have changed. That's not very +/* + * This is called when the kernel page tables have changed. That's not very * common (unless the Guest is using highmem, which makes the Guest extremely - * slow), so it's worth separating this from the user flushing above. */ + * slow), so it's worth separating this from the user flushing above. + */ static void lguest_flush_tlb_kernel(void) { lazy_hcall1(LHCALL_FLUSH_TLB, 1); @@ -691,23 +760,27 @@ static struct irq_chip lguest_irq_controller = { .unmask = enable_lguest_irq, }; -/* This sets up the Interrupt Descriptor Table (IDT) entry for each hardware +/* + * This sets up the Interrupt Descriptor Table (IDT) entry for each hardware * interrupt (except 128, which is used for system calls), and then tells the * Linux infrastructure that each interrupt is controlled by our level-based - * lguest interrupt controller. */ + * lguest interrupt controller. + */ static void __init lguest_init_IRQ(void) { unsigned int i; for (i = FIRST_EXTERNAL_VECTOR; i < NR_VECTORS; i++) { - /* Some systems map "vectors" to interrupts weirdly. Lguest has - * a straightforward 1 to 1 mapping, so force that here. */ + /* Some systems map "vectors" to interrupts weirdly. Not us! */ __get_cpu_var(vector_irq)[i] = i - FIRST_EXTERNAL_VECTOR; if (i != SYSCALL_VECTOR) set_intr_gate(i, interrupt[i - FIRST_EXTERNAL_VECTOR]); } - /* This call is required to set up for 4k stacks, where we have - * separate stacks for hard and soft interrupts. */ + + /* + * This call is required to set up for 4k stacks, where we have + * separate stacks for hard and soft interrupts. + */ irq_ctx_init(smp_processor_id()); } @@ -729,31 +802,39 @@ static unsigned long lguest_get_wallclock(void) return lguest_data.time.tv_sec; } -/* The TSC is an Intel thing called the Time Stamp Counter. The Host tells us +/* + * The TSC is an Intel thing called the Time Stamp Counter. The Host tells us * what speed it runs at, or 0 if it's unusable as a reliable clock source. * This matches what we want here: if we return 0 from this function, the x86 - * TSC clock will give up and not register itself. */ + * TSC clock will give up and not register itself. + */ static unsigned long lguest_tsc_khz(void) { return lguest_data.tsc_khz; } -/* If we can't use the TSC, the kernel falls back to our lower-priority - * "lguest_clock", where we read the time value given to us by the Host. */ +/* + * If we can't use the TSC, the kernel falls back to our lower-priority + * "lguest_clock", where we read the time value given to us by the Host. + */ static cycle_t lguest_clock_read(struct clocksource *cs) { unsigned long sec, nsec; - /* Since the time is in two parts (seconds and nanoseconds), we risk + /* + * Since the time is in two parts (seconds and nanoseconds), we risk * reading it just as it's changing from 99 & 0.999999999 to 100 and 0, * and getting 99 and 0. As Linux tends to come apart under the stress - * of time travel, we must be careful: */ + * of time travel, we must be careful: + */ do { /* First we read the seconds part. */ sec = lguest_data.time.tv_sec; - /* This read memory barrier tells the compiler and the CPU that + /* + * This read memory barrier tells the compiler and the CPU that * this can't be reordered: we have to complete the above - * before going on. */ + * before going on. + */ rmb(); /* Now we read the nanoseconds part. */ nsec = lguest_data.time.tv_nsec; @@ -777,9 +858,11 @@ static struct clocksource lguest_clock = { .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; -/* We also need a "struct clock_event_device": Linux asks us to set it to go +/* + * We also need a "struct clock_event_device": Linux asks us to set it to go * off some time in the future. Actually, James Morris figured all this out, I - * just applied the patch. */ + * just applied the patch. + */ static int lguest_clockevent_set_next_event(unsigned long delta, struct clock_event_device *evt) { @@ -829,8 +912,10 @@ static struct clock_event_device lguest_clockevent = { .max_delta_ns = LG_CLOCK_MAX_DELTA, }; -/* This is the Guest timer interrupt handler (hardware interrupt 0). We just - * call the clockevent infrastructure and it does whatever needs doing. */ +/* + * This is the Guest timer interrupt handler (hardware interrupt 0). We just + * call the clockevent infrastructure and it does whatever needs doing. + */ static void lguest_time_irq(unsigned int irq, struct irq_desc *desc) { unsigned long flags; @@ -841,10 +926,12 @@ static void lguest_time_irq(unsigned int irq, struct irq_desc *desc) local_irq_restore(flags); } -/* At some point in the boot process, we get asked to set up our timing +/* + * At some point in the boot process, we get asked to set up our timing * infrastructure. The kernel doesn't expect timer interrupts before this, but * we cleverly initialized the "blocked_interrupts" field of "struct - * lguest_data" so that timer interrupts were blocked until now. */ + * lguest_data" so that timer interrupts were blocked until now. + */ static void lguest_time_init(void) { /* Set up the timer interrupt (0) to go to our simple timer routine */ @@ -868,14 +955,16 @@ static void lguest_time_init(void) * to work. They're pretty simple. */ -/* The Guest needs to tell the Host what stack it expects traps to use. For +/* + * The Guest needs to tell the Host what stack it expects traps to use. For * native hardware, this is part of the Task State Segment mentioned above in * lguest_load_tr_desc(), but to help hypervisors there's this special call. * * We tell the Host the segment we want to use (__KERNEL_DS is the kernel data * segment), the privilege level (we're privilege level 1, the Host is 0 and * will not tolerate us trying to use that), the stack pointer, and the number - * of pages in the stack. */ + * of pages in the stack. + */ static void lguest_load_sp0(struct tss_struct *tss, struct thread_struct *thread) { @@ -889,7 +978,8 @@ static void lguest_set_debugreg(int regno, unsigned long value) /* FIXME: Implement */ } -/* There are times when the kernel wants to make sure that no memory writes are +/* + * There are times when the kernel wants to make sure that no memory writes are * caught in the cache (that they've all reached real hardware devices). This * doesn't matter for the Guest which has virtual hardware. * @@ -903,11 +993,13 @@ static void lguest_wbinvd(void) { } -/* If the Guest expects to have an Advanced Programmable Interrupt Controller, +/* + * If the Guest expects to have an Advanced Programmable Interrupt Controller, * we play dumb by ignoring writes and returning 0 for reads. So it's no * longer Programmable nor Controlling anything, and I don't think 8 lines of * code qualifies for Advanced. It will also never interrupt anything. It - * does, however, allow us to get through the Linux boot code. */ + * does, however, allow us to get through the Linux boot code. + */ #ifdef CONFIG_X86_LOCAL_APIC static void lguest_apic_write(u32 reg, u32 v) { @@ -956,11 +1048,13 @@ static void lguest_safe_halt(void) kvm_hypercall0(LHCALL_HALT); } -/* The SHUTDOWN hypercall takes a string to describe what's happening, and +/* + * The SHUTDOWN hypercall takes a string to describe what's happening, and * an argument which says whether this to restart (reboot) the Guest or not. * * Note that the Host always prefers that the Guest speak in physical addresses - * rather than virtual addresses, so we use __pa() here. */ + * rather than virtual addresses, so we use __pa() here. + */ static void lguest_power_off(void) { kvm_hypercall2(LHCALL_SHUTDOWN, __pa("Power down"), @@ -991,8 +1085,10 @@ static __init char *lguest_memory_setup(void) * nice to move it back to lguest_init. Patch welcome... */ atomic_notifier_chain_register(&panic_notifier_list, &paniced); - /* The Linux bootloader header contains an "e820" memory map: the - * Launcher populated the first entry with our memory limit. */ + /* + *The Linux bootloader header contains an "e820" memory map: the + * Launcher populated the first entry with our memory limit. + */ e820_add_region(boot_params.e820_map[0].addr, boot_params.e820_map[0].size, boot_params.e820_map[0].type); @@ -1001,16 +1097,17 @@ static __init char *lguest_memory_setup(void) return "LGUEST"; } -/* We will eventually use the virtio console device to produce console output, +/* + * We will eventually use the virtio console device to produce console output, * but before that is set up we use LHCALL_NOTIFY on normal memory to produce - * console output. */ + * console output. + */ static __init int early_put_chars(u32 vtermno, const char *buf, int count) { char scratch[17]; unsigned int len = count; - /* We use a nul-terminated string, so we have to make a copy. Icky, - * huh? */ + /* We use a nul-terminated string, so we make a copy. Icky, huh? */ if (len > sizeof(scratch) - 1) len = sizeof(scratch) - 1; scratch[len] = '\0'; @@ -1021,8 +1118,10 @@ static __init int early_put_chars(u32 vtermno, const char *buf, int count) return len; } -/* Rebooting also tells the Host we're finished, but the RESTART flag tells the - * Launcher to reboot us. */ +/* + * Rebooting also tells the Host we're finished, but the RESTART flag tells the + * Launcher to reboot us. + */ static void lguest_restart(char *reason) { kvm_hypercall2(LHCALL_SHUTDOWN, __pa(reason), LGUEST_SHUTDOWN_RESTART); @@ -1049,7 +1148,8 @@ static void lguest_restart(char *reason) * fit comfortably. * * First we need assembly templates of each of the patchable Guest operations, - * and these are in i386_head.S. */ + * and these are in i386_head.S. + */ /*G:060 We construct a table from the assembler templates: */ static const struct lguest_insns @@ -1060,9 +1160,11 @@ static const struct lguest_insns [PARAVIRT_PATCH(pv_irq_ops.save_fl)] = { lgstart_pushf, lgend_pushf }, }; -/* Now our patch routine is fairly simple (based on the native one in +/* + * Now our patch routine is fairly simple (based on the native one in * paravirt.c). If we have a replacement, we copy it in and return how much of - * the available space we used. */ + * the available space we used. + */ static unsigned lguest_patch(u8 type, u16 clobber, void *ibuf, unsigned long addr, unsigned len) { @@ -1074,8 +1176,7 @@ static unsigned lguest_patch(u8 type, u16 clobber, void *ibuf, insn_len = lguest_insns[type].end - lguest_insns[type].start; - /* Similarly if we can't fit replacement (shouldn't happen, but let's - * be thorough). */ + /* Similarly if it can't fit (doesn't happen, but let's be thorough). */ if (len < insn_len) return paravirt_patch_default(type, clobber, ibuf, addr, len); @@ -1084,22 +1185,28 @@ static unsigned lguest_patch(u8 type, u16 clobber, void *ibuf, return insn_len; } -/*G:029 Once we get to lguest_init(), we know we're a Guest. The various +/*G:029 + * Once we get to lguest_init(), we know we're a Guest. The various * pv_ops structures in the kernel provide points for (almost) every routine we - * have to override to avoid privileged instructions. */ + * have to override to avoid privileged instructions. + */ __init void lguest_init(void) { - /* We're under lguest, paravirt is enabled, and we're running at - * privilege level 1, not 0 as normal. */ + /* We're under lguest. */ pv_info.name = "lguest"; + /* Paravirt is enabled. */ pv_info.paravirt_enabled = 1; + /* We're running at privilege level 1, not 0 as normal. */ pv_info.kernel_rpl = 1; + /* Everyone except Xen runs with this set. */ pv_info.shared_kernel_pmd = 1; - /* We set up all the lguest overrides for sensitive operations. These - * are detailed with the operations themselves. */ + /* + * We set up all the lguest overrides for sensitive operations. These + * are detailed with the operations themselves. + */ - /* interrupt-related operations */ + /* Interrupt-related operations */ pv_irq_ops.init_IRQ = lguest_init_IRQ; pv_irq_ops.save_fl = PV_CALLEE_SAVE(save_fl); pv_irq_ops.restore_fl = __PV_IS_CALLEE_SAVE(lg_restore_fl); @@ -1107,11 +1214,11 @@ __init void lguest_init(void) pv_irq_ops.irq_enable = __PV_IS_CALLEE_SAVE(lg_irq_enable); pv_irq_ops.safe_halt = lguest_safe_halt; - /* init-time operations */ + /* Setup operations */ pv_init_ops.memory_setup = lguest_memory_setup; pv_init_ops.patch = lguest_patch; - /* Intercepts of various cpu instructions */ + /* Intercepts of various CPU instructions */ pv_cpu_ops.load_gdt = lguest_load_gdt; pv_cpu_ops.cpuid = lguest_cpuid; pv_cpu_ops.load_idt = lguest_load_idt; @@ -1132,7 +1239,7 @@ __init void lguest_init(void) pv_cpu_ops.start_context_switch = paravirt_start_context_switch; pv_cpu_ops.end_context_switch = lguest_end_context_switch; - /* pagetable management */ + /* Pagetable management */ pv_mmu_ops.write_cr3 = lguest_write_cr3; pv_mmu_ops.flush_tlb_user = lguest_flush_tlb_user; pv_mmu_ops.flush_tlb_single = lguest_flush_tlb_single; @@ -1154,54 +1261,71 @@ __init void lguest_init(void) pv_mmu_ops.pte_update_defer = lguest_pte_update; #ifdef CONFIG_X86_LOCAL_APIC - /* apic read/write intercepts */ + /* APIC read/write intercepts */ set_lguest_basic_apic_ops(); #endif - /* time operations */ + /* Time operations */ pv_time_ops.get_wallclock = lguest_get_wallclock; pv_time_ops.time_init = lguest_time_init; pv_time_ops.get_tsc_khz = lguest_tsc_khz; - /* Now is a good time to look at the implementations of these functions - * before returning to the rest of lguest_init(). */ + /* + * Now is a good time to look at the implementations of these functions + * before returning to the rest of lguest_init(). + */ - /*G:070 Now we've seen all the paravirt_ops, we return to + /*G:070 + * Now we've seen all the paravirt_ops, we return to * lguest_init() where the rest of the fairly chaotic boot setup - * occurs. */ + * occurs. + */ - /* The stack protector is a weird thing where gcc places a canary + /* + * The stack protector is a weird thing where gcc places a canary * value on the stack and then checks it on return. This file is * compiled with -fno-stack-protector it, so we got this far without * problems. The value of the canary is kept at offset 20 from the * %gs register, so we need to set that up before calling C functions - * in other files. */ + * in other files. + */ setup_stack_canary_segment(0); - /* We could just call load_stack_canary_segment(), but we might as - * call switch_to_new_gdt() which loads the whole table and sets up - * the per-cpu segment descriptor register %fs as well. */ + + /* + * We could just call load_stack_canary_segment(), but we might as well + * call switch_to_new_gdt() which loads the whole table and sets up the + * per-cpu segment descriptor register %fs as well. + */ switch_to_new_gdt(0); /* As described in head_32.S, we map the first 128M of memory. */ max_pfn_mapped = (128*1024*1024) >> PAGE_SHIFT; - /* The Host<->Guest Switcher lives at the top of our address space, and + /* + * The Host<->Guest Switcher lives at the top of our address space, and * the Host told us how big it is when we made LGUEST_INIT hypercall: - * it put the answer in lguest_data.reserve_mem */ + * it put the answer in lguest_data.reserve_mem + */ reserve_top_address(lguest_data.reserve_mem); - /* If we don't initialize the lock dependency checker now, it crashes - * paravirt_disable_iospace. */ + /* + * If we don't initialize the lock dependency checker now, it crashes + * paravirt_disable_iospace. + */ lockdep_init(); - /* The IDE code spends about 3 seconds probing for disks: if we reserve + /* + * The IDE code spends about 3 seconds probing for disks: if we reserve * all the I/O ports up front it can't get them and so doesn't probe. * Other device drivers are similar (but less severe). This cuts the - * kernel boot time on my machine from 4.1 seconds to 0.45 seconds. */ + * kernel boot time on my machine from 4.1 seconds to 0.45 seconds. + */ paravirt_disable_iospace(); - /* This is messy CPU setup stuff which the native boot code does before - * start_kernel, so we have to do, too: */ + /* + * This is messy CPU setup stuff which the native boot code does before + * start_kernel, so we have to do, too: + */ cpu_detect(&new_cpu_data); /* head.S usually sets up the first capability word, so do it here. */ new_cpu_data.x86_capability[0] = cpuid_edx(1); @@ -1218,22 +1342,28 @@ __init void lguest_init(void) acpi_ht = 0; #endif - /* We set the preferred console to "hvc". This is the "hypervisor + /* + * We set the preferred console to "hvc". This is the "hypervisor * virtual console" driver written by the PowerPC people, which we also - * adapted for lguest's use. */ + * adapted for lguest's use. + */ add_preferred_console("hvc", 0, NULL); /* Register our very early console. */ virtio_cons_early_init(early_put_chars); - /* Last of all, we set the power management poweroff hook to point to + /* + * Last of all, we set the power management poweroff hook to point to * the Guest routine to power off, and the reboot hook to our restart - * routine. */ + * routine. + */ pm_power_off = lguest_power_off; machine_ops.restart = lguest_restart; - /* Now we're set up, call i386_start_kernel() in head32.c and we proceed - * to boot as normal. It never returns. */ + /* + * Now we're set up, call i386_start_kernel() in head32.c and we proceed + * to boot as normal. It never returns. + */ i386_start_kernel(); } /* diff --git a/arch/x86/lguest/i386_head.S b/arch/x86/lguest/i386_head.S index a9c8cfe61cd..db6aa95eb05 100644 --- a/arch/x86/lguest/i386_head.S +++ b/arch/x86/lguest/i386_head.S @@ -5,7 +5,8 @@ #include #include -/*G:020 Our story starts with the kernel booting into startup_32 in +/*G:020 + * Our story starts with the kernel booting into startup_32 in * arch/x86/kernel/head_32.S. It expects a boot header, which is created by * the bootloader (the Launcher in our case). * @@ -21,11 +22,14 @@ * data without remembering to subtract __PAGE_OFFSET! * * The .section line puts this code in .init.text so it will be discarded after - * boot. */ + * boot. + */ .section .init.text, "ax", @progbits ENTRY(lguest_entry) - /* We make the "initialization" hypercall now to tell the Host about - * us, and also find out where it put our page tables. */ + /* + * We make the "initialization" hypercall now to tell the Host about + * us, and also find out where it put our page tables. + */ movl $LHCALL_LGUEST_INIT, %eax movl $lguest_data - __PAGE_OFFSET, %ebx .byte 0x0f,0x01,0xc1 /* KVM_HYPERCALL */ @@ -33,13 +37,14 @@ ENTRY(lguest_entry) /* Set up the initial stack so we can run C code. */ movl $(init_thread_union+THREAD_SIZE),%esp - /* Jumps are relative, and we're running __PAGE_OFFSET too low at the - * moment. */ + /* Jumps are relative: we're running __PAGE_OFFSET too low. */ jmp lguest_init+__PAGE_OFFSET -/*G:055 We create a macro which puts the assembler code between lgstart_ and - * lgend_ markers. These templates are put in the .text section: they can't be - * discarded after boot as we may need to patch modules, too. */ +/*G:055 + * We create a macro which puts the assembler code between lgstart_ and lgend_ + * markers. These templates are put in the .text section: they can't be + * discarded after boot as we may need to patch modules, too. + */ .text #define LGUEST_PATCH(name, insns...) \ lgstart_##name: insns; lgend_##name:; \ @@ -48,58 +53,74 @@ ENTRY(lguest_entry) LGUEST_PATCH(cli, movl $0, lguest_data+LGUEST_DATA_irq_enabled) LGUEST_PATCH(pushf, movl lguest_data+LGUEST_DATA_irq_enabled, %eax) -/*G:033 But using those wrappers is inefficient (we'll see why that doesn't - * matter for save_fl and irq_disable later). If we write our routines - * carefully in assembler, we can avoid clobbering any registers and avoid - * jumping through the wrapper functions. +/*G:033 + * But using those wrappers is inefficient (we'll see why that doesn't matter + * for save_fl and irq_disable later). If we write our routines carefully in + * assembler, we can avoid clobbering any registers and avoid jumping through + * the wrapper functions. * * I skipped over our first piece of assembler, but this one is worth studying - * in a bit more detail so I'll describe in easy stages. First, the routine - * to enable interrupts: */ + * in a bit more detail so I'll describe in easy stages. First, the routine to + * enable interrupts: + */ ENTRY(lg_irq_enable) - /* The reverse of irq_disable, this sets lguest_data.irq_enabled to - * X86_EFLAGS_IF (ie. "Interrupts enabled"). */ + /* + * The reverse of irq_disable, this sets lguest_data.irq_enabled to + * X86_EFLAGS_IF (ie. "Interrupts enabled"). + */ movl $X86_EFLAGS_IF, lguest_data+LGUEST_DATA_irq_enabled - /* But now we need to check if the Host wants to know: there might have + /* + * But now we need to check if the Host wants to know: there might have * been interrupts waiting to be delivered, in which case it will have * set lguest_data.irq_pending to X86_EFLAGS_IF. If it's not zero, we - * jump to send_interrupts, otherwise we're done. */ + * jump to send_interrupts, otherwise we're done. + */ testl $0, lguest_data+LGUEST_DATA_irq_pending jnz send_interrupts - /* One cool thing about x86 is that you can do many things without using + /* + * One cool thing about x86 is that you can do many things without using * a register. In this case, the normal path hasn't needed to save or - * restore any registers at all! */ + * restore any registers at all! + */ ret send_interrupts: - /* OK, now we need a register: eax is used for the hypercall number, + /* + * OK, now we need a register: eax is used for the hypercall number, * which is LHCALL_SEND_INTERRUPTS. * * We used not to bother with this pending detection at all, which was * much simpler. Sooner or later the Host would realize it had to * send us an interrupt. But that turns out to make performance 7 * times worse on a simple tcp benchmark. So now we do this the hard - * way. */ + * way. + */ pushl %eax movl $LHCALL_SEND_INTERRUPTS, %eax - /* This is a vmcall instruction (same thing that KVM uses). Older + /* + * This is a vmcall instruction (same thing that KVM uses). Older * assembler versions might not know the "vmcall" instruction, so we - * create one manually here. */ + * create one manually here. + */ .byte 0x0f,0x01,0xc1 /* KVM_HYPERCALL */ popl %eax ret -/* Finally, the "popf" or "restore flags" routine. The %eax register holds the +/* + * Finally, the "popf" or "restore flags" routine. The %eax register holds the * flags (in practice, either X86_EFLAGS_IF or 0): if it's X86_EFLAGS_IF we're - * enabling interrupts again, if it's 0 we're leaving them off. */ + * enabling interrupts again, if it's 0 we're leaving them off. + */ ENTRY(lg_restore_fl) /* This is just "lguest_data.irq_enabled = flags;" */ movl %eax, lguest_data+LGUEST_DATA_irq_enabled - /* Now, if the %eax value has enabled interrupts and + /* + * Now, if the %eax value has enabled interrupts and * lguest_data.irq_pending is set, we want to tell the Host so it can * deliver any outstanding interrupts. Fortunately, both values will * be X86_EFLAGS_IF (ie. 512) in that case, and the "testl" * instruction will AND them together for us. If both are set, we - * jump to send_interrupts. */ + * jump to send_interrupts. + */ testl lguest_data+LGUEST_DATA_irq_pending, %eax jnz send_interrupts /* Again, the normal path has used no extra registers. Clever, huh? */ @@ -109,22 +130,24 @@ ENTRY(lg_restore_fl) .global lguest_noirq_start .global lguest_noirq_end -/*M:004 When the Host reflects a trap or injects an interrupt into the Guest, - * it sets the eflags interrupt bit on the stack based on - * lguest_data.irq_enabled, so the Guest iret logic does the right thing when - * restoring it. However, when the Host sets the Guest up for direct traps, - * such as system calls, the processor is the one to push eflags onto the - * stack, and the interrupt bit will be 1 (in reality, interrupts are always - * enabled in the Guest). +/*M:004 + * When the Host reflects a trap or injects an interrupt into the Guest, it + * sets the eflags interrupt bit on the stack based on lguest_data.irq_enabled, + * so the Guest iret logic does the right thing when restoring it. However, + * when the Host sets the Guest up for direct traps, such as system calls, the + * processor is the one to push eflags onto the stack, and the interrupt bit + * will be 1 (in reality, interrupts are always enabled in the Guest). * * This turns out to be harmless: the only trap which should happen under Linux * with interrupts disabled is Page Fault (due to our lazy mapping of vmalloc * regions), which has to be reflected through the Host anyway. If another * trap *does* go off when interrupts are disabled, the Guest will panic, and - * we'll never get to this iret! :*/ + * we'll never get to this iret! +:*/ -/*G:045 There is one final paravirt_op that the Guest implements, and glancing - * at it you can see why I left it to last. It's *cool*! It's in *assembler*! +/*G:045 + * There is one final paravirt_op that the Guest implements, and glancing at it + * you can see why I left it to last. It's *cool*! It's in *assembler*! * * The "iret" instruction is used to return from an interrupt or trap. The * stack looks like this: @@ -148,15 +171,18 @@ ENTRY(lg_restore_fl) * return to userspace or wherever. Our solution to this is to surround the * code with lguest_noirq_start: and lguest_noirq_end: labels. We tell the * Host that it is *never* to interrupt us there, even if interrupts seem to be - * enabled. */ + * enabled. + */ ENTRY(lguest_iret) pushl %eax movl 12(%esp), %eax lguest_noirq_start: - /* Note the %ss: segment prefix here. Normal data accesses use the + /* + * Note the %ss: segment prefix here. Normal data accesses use the * "ds" segment, but that will have already been restored for whatever * we're returning to (such as userspace): we can't trust it. The %ss: - * prefix makes sure we use the stack segment, which is still valid. */ + * prefix makes sure we use the stack segment, which is still valid. + */ movl %eax,%ss:lguest_data+LGUEST_DATA_irq_enabled popl %eax iret diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c index a6974e9b8eb..cd058bc903f 100644 --- a/drivers/lguest/core.c +++ b/drivers/lguest/core.c @@ -1,6 +1,8 @@ -/*P:400 This contains run_guest() which actually calls into the Host<->Guest +/*P:400 + * This contains run_guest() which actually calls into the Host<->Guest * Switcher and analyzes the return, such as determining if the Guest wants the - * Host to do something. This file also contains useful helper routines. :*/ + * Host to do something. This file also contains useful helper routines. +:*/ #include #include #include @@ -24,7 +26,8 @@ static struct page **switcher_page; /* This One Big lock protects all inter-guest data structures. */ DEFINE_MUTEX(lguest_lock); -/*H:010 We need to set up the Switcher at a high virtual address. Remember the +/*H:010 + * We need to set up the Switcher at a high virtual address. Remember the * Switcher is a few hundred bytes of assembler code which actually changes the * CPU to run the Guest, and then changes back to the Host when a trap or * interrupt happens. @@ -33,7 +36,8 @@ DEFINE_MUTEX(lguest_lock); * Host since it will be running as the switchover occurs. * * Trying to map memory at a particular address is an unusual thing to do, so - * it's not a simple one-liner. */ + * it's not a simple one-liner. + */ static __init int map_switcher(void) { int i, err; @@ -47,8 +51,10 @@ static __init int map_switcher(void) * easy. */ - /* We allocate an array of struct page pointers. map_vm_area() wants - * this, rather than just an array of pages. */ + /* + * We allocate an array of struct page pointers. map_vm_area() wants + * this, rather than just an array of pages. + */ switcher_page = kmalloc(sizeof(switcher_page[0])*TOTAL_SWITCHER_PAGES, GFP_KERNEL); if (!switcher_page) { @@ -56,8 +62,10 @@ static __init int map_switcher(void) goto out; } - /* Now we actually allocate the pages. The Guest will see these pages, - * so we make sure they're zeroed. */ + /* + * Now we actually allocate the pages. The Guest will see these pages, + * so we make sure they're zeroed. + */ for (i = 0; i < TOTAL_SWITCHER_PAGES; i++) { unsigned long addr = get_zeroed_page(GFP_KERNEL); if (!addr) { @@ -67,19 +75,23 @@ static __init int map_switcher(void) switcher_page[i] = virt_to_page(addr); } - /* First we check that the Switcher won't overlap the fixmap area at + /* + * First we check that the Switcher won't overlap the fixmap area at * the top of memory. It's currently nowhere near, but it could have - * very strange effects if it ever happened. */ + * very strange effects if it ever happened. + */ if (SWITCHER_ADDR + (TOTAL_SWITCHER_PAGES+1)*PAGE_SIZE > FIXADDR_START){ err = -ENOMEM; printk("lguest: mapping switcher would thwack fixmap\n"); goto free_pages; } - /* Now we reserve the "virtual memory area" we want: 0xFFC00000 + /* + * Now we reserve the "virtual memory area" we want: 0xFFC00000 * (SWITCHER_ADDR). We might not get it in theory, but in practice * it's worked so far. The end address needs +1 because __get_vm_area - * allocates an extra guard page, so we need space for that. */ + * allocates an extra guard page, so we need space for that. + */ switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE, VM_ALLOC, SWITCHER_ADDR, SWITCHER_ADDR + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE); @@ -89,11 +101,13 @@ static __init int map_switcher(void) goto free_pages; } - /* This code actually sets up the pages we've allocated to appear at + /* + * This code actually sets up the pages we've allocated to appear at * SWITCHER_ADDR. map_vm_area() takes the vma we allocated above, the * kind of pages we're mapping (kernel pages), and a pointer to our * array of struct pages. It increments that pointer, but we don't - * care. */ + * care. + */ pagep = switcher_page; err = map_vm_area(switcher_vma, PAGE_KERNEL_EXEC, &pagep); if (err) { @@ -101,8 +115,10 @@ static __init int map_switcher(void) goto free_vma; } - /* Now the Switcher is mapped at the right address, we can't fail! - * Copy in the compiled-in Switcher code (from _switcher.S). */ + /* + * Now the Switcher is mapped at the right address, we can't fail! + * Copy in the compiled-in Switcher code (from _switcher.S). + */ memcpy(switcher_vma->addr, start_switcher_text, end_switcher_text - start_switcher_text); @@ -124,8 +140,7 @@ out: } /*:*/ -/* Cleaning up the mapping when the module is unloaded is almost... - * too easy. */ +/* Cleaning up the mapping when the module is unloaded is almost... too easy. */ static void unmap_switcher(void) { unsigned int i; @@ -151,16 +166,19 @@ static void unmap_switcher(void) * But we can't trust the Guest: it might be trying to access the Launcher * code. We have to check that the range is below the pfn_limit the Launcher * gave us. We have to make sure that addr + len doesn't give us a false - * positive by overflowing, too. */ + * positive by overflowing, too. + */ bool lguest_address_ok(const struct lguest *lg, unsigned long addr, unsigned long len) { return (addr+len) / PAGE_SIZE < lg->pfn_limit && (addr+len >= addr); } -/* This routine copies memory from the Guest. Here we can see how useful the +/* + * This routine copies memory from the Guest. Here we can see how useful the * kill_lguest() routine we met in the Launcher can be: we return a random - * value (all zeroes) instead of needing to return an error. */ + * value (all zeroes) instead of needing to return an error. + */ void __lgread(struct lg_cpu *cpu, void *b, unsigned long addr, unsigned bytes) { if (!lguest_address_ok(cpu->lg, addr, bytes) @@ -181,9 +199,11 @@ void __lgwrite(struct lg_cpu *cpu, unsigned long addr, const void *b, } /*:*/ -/*H:030 Let's jump straight to the the main loop which runs the Guest. +/*H:030 + * Let's jump straight to the the main loop which runs the Guest. * Remember, this is called by the Launcher reading /dev/lguest, and we keep - * going around and around until something interesting happens. */ + * going around and around until something interesting happens. + */ int run_guest(struct lg_cpu *cpu, unsigned long __user *user) { /* We stop running once the Guest is dead. */ @@ -195,8 +215,10 @@ int run_guest(struct lg_cpu *cpu, unsigned long __user *user) if (cpu->hcall) do_hypercalls(cpu); - /* It's possible the Guest did a NOTIFY hypercall to the - * Launcher, in which case we return from the read() now. */ + /* + * It's possible the Guest did a NOTIFY hypercall to the + * Launcher, in which case we return from the read() now. + */ if (cpu->pending_notify) { if (!send_notify_to_eventfd(cpu)) { if (put_user(cpu->pending_notify, user)) @@ -209,29 +231,39 @@ int run_guest(struct lg_cpu *cpu, unsigned long __user *user) if (signal_pending(current)) return -ERESTARTSYS; - /* Check if there are any interrupts which can be delivered now: + /* + * Check if there are any interrupts which can be delivered now: * if so, this sets up the hander to be executed when we next - * run the Guest. */ + * run the Guest. + */ irq = interrupt_pending(cpu, &more); if (irq < LGUEST_IRQS) try_deliver_interrupt(cpu, irq, more); - /* All long-lived kernel loops need to check with this horrible + /* + * All long-lived kernel loops need to check with this horrible * thing called the freezer. If the Host is trying to suspend, - * it stops us. */ + * it stops us. + */ try_to_freeze(); - /* Just make absolutely sure the Guest is still alive. One of - * those hypercalls could have been fatal, for example. */ + /* + * Just make absolutely sure the Guest is still alive. One of + * those hypercalls could have been fatal, for example. + */ if (cpu->lg->dead) break; - /* If the Guest asked to be stopped, we sleep. The Guest's - * clock timer will wake us. */ + /* + * If the Guest asked to be stopped, we sleep. The Guest's + * clock timer will wake us. + */ if (cpu->halted) { set_current_state(TASK_INTERRUPTIBLE); - /* Just before we sleep, make sure no interrupt snuck in - * which we should be doing. */ + /* + * Just before we sleep, make sure no interrupt snuck in + * which we should be doing. + */ if (interrupt_pending(cpu, &more) < LGUEST_IRQS) set_current_state(TASK_RUNNING); else @@ -239,8 +271,10 @@ int run_guest(struct lg_cpu *cpu, unsigned long __user *user) continue; } - /* OK, now we're ready to jump into the Guest. First we put up - * the "Do Not Disturb" sign: */ + /* + * OK, now we're ready to jump into the Guest. First we put up + * the "Do Not Disturb" sign: + */ local_irq_disable(); /* Actually run the Guest until something happens. */ @@ -327,8 +361,10 @@ static void __exit fini(void) } /*:*/ -/* The Host side of lguest can be a module. This is a nice way for people to - * play with it. */ +/* + * The Host side of lguest can be a module. This is a nice way for people to + * play with it. + */ module_init(init); module_exit(fini); MODULE_LICENSE("GPL"); diff --git a/drivers/lguest/hypercalls.c b/drivers/lguest/hypercalls.c index c29ffa19cb7..787ab4bc09f 100644 --- a/drivers/lguest/hypercalls.c +++ b/drivers/lguest/hypercalls.c @@ -1,8 +1,10 @@ -/*P:500 Just as userspace programs request kernel operations through a system +/*P:500 + * Just as userspace programs request kernel operations through a system * call, the Guest requests Host operations through a "hypercall". You might * notice this nomenclature doesn't really follow any logic, but the name has * been around for long enough that we're stuck with it. As you'd expect, this - * code is basically a one big switch statement. :*/ + * code is basically a one big switch statement. +:*/ /* Copyright (C) 2006 Rusty Russell IBM Corporation @@ -28,30 +30,41 @@ #include #include "lg.h" -/*H:120 This is the core hypercall routine: where the Guest gets what it wants. - * Or gets killed. Or, in the case of LHCALL_SHUTDOWN, both. */ +/*H:120 + * This is the core hypercall routine: where the Guest gets what it wants. + * Or gets killed. Or, in the case of LHCALL_SHUTDOWN, both. + */ static void do_hcall(struct lg_cpu *cpu, struct hcall_args *args) { switch (args->arg0) { case LHCALL_FLUSH_ASYNC: - /* This call does nothing, except by breaking out of the Guest - * it makes us process all the asynchronous hypercalls. */ + /* + * This call does nothing, except by breaking out of the Guest + * it makes us process all the asynchronous hypercalls. + */ break; case LHCALL_SEND_INTERRUPTS: - /* This call does nothing too, but by breaking out of the Guest - * it makes us process any pending interrupts. */ + /* + * This call does nothing too, but by breaking out of the Guest + * it makes us process any pending interrupts. + */ break; case LHCALL_LGUEST_INIT: - /* You can't get here unless you're already initialized. Don't - * do that. */ + /* + * You can't get here unless you're already initialized. Don't + * do that. + */ kill_guest(cpu, "already have lguest_data"); break; case LHCALL_SHUTDOWN: { - /* Shutdown is such a trivial hypercall that we do it in four - * lines right here. */ char msg[128]; - /* If the lgread fails, it will call kill_guest() itself; the - * kill_guest() with the message will be ignored. */ + /* + * Shutdown is such a trivial hypercall that we do it in four + * lines right here. + * + * If the lgread fails, it will call kill_guest() itself; the + * kill_guest() with the message will be ignored. + */ __lgread(cpu, msg, args->arg1, sizeof(msg)); msg[sizeof(msg)-1] = '\0'; kill_guest(cpu, "CRASH: %s", msg); @@ -60,16 +73,17 @@ static void do_hcall(struct lg_cpu *cpu, struct hcall_args *args) break; } case LHCALL_FLUSH_TLB: - /* FLUSH_TLB comes in two flavors, depending on the - * argument: */ + /* FLUSH_TLB comes in two flavors, depending on the argument: */ if (args->arg1) guest_pagetable_clear_all(cpu); else guest_pagetable_flush_user(cpu); break; - /* All these calls simply pass the arguments through to the right - * routines. */ + /* + * All these calls simply pass the arguments through to the right + * routines. + */ case LHCALL_NEW_PGTABLE: guest_new_pagetable(cpu, args->arg1); break; @@ -112,15 +126,16 @@ static void do_hcall(struct lg_cpu *cpu, struct hcall_args *args) kill_guest(cpu, "Bad hypercall %li\n", args->arg0); } } -/*:*/ -/*H:124 Asynchronous hypercalls are easy: we just look in the array in the +/*H:124 + * Asynchronous hypercalls are easy: we just look in the array in the * Guest's "struct lguest_data" to see if any new ones are marked "ready". * * We are careful to do these in order: obviously we respect the order the * Guest put them in the ring, but we also promise the Guest that they will * happen before any normal hypercall (which is why we check this before - * checking for a normal hcall). */ + * checking for a normal hcall). + */ static void do_async_hcalls(struct lg_cpu *cpu) { unsigned int i; @@ -133,22 +148,28 @@ static void do_async_hcalls(struct lg_cpu *cpu) /* We process "struct lguest_data"s hcalls[] ring once. */ for (i = 0; i < ARRAY_SIZE(st); i++) { struct hcall_args args; - /* We remember where we were up to from last time. This makes + /* + * We remember where we were up to from last time. This makes * sure that the hypercalls are done in the order the Guest - * places them in the ring. */ + * places them in the ring. + */ unsigned int n = cpu->next_hcall; /* 0xFF means there's no call here (yet). */ if (st[n] == 0xFF) break; - /* OK, we have hypercall. Increment the "next_hcall" cursor, - * and wrap back to 0 if we reach the end. */ + /* + * OK, we have hypercall. Increment the "next_hcall" cursor, + * and wrap back to 0 if we reach the end. + */ if (++cpu->next_hcall == LHCALL_RING_SIZE) cpu->next_hcall = 0; - /* Copy the hypercall arguments into a local copy of - * the hcall_args struct. */ + /* + * Copy the hypercall arguments into a local copy of the + * hcall_args struct. + */ if (copy_from_user(&args, &cpu->lg->lguest_data->hcalls[n], sizeof(struct hcall_args))) { kill_guest(cpu, "Fetching async hypercalls"); @@ -164,19 +185,25 @@ static void do_async_hcalls(struct lg_cpu *cpu) break; } - /* Stop doing hypercalls if they want to notify the Launcher: - * it needs to service this first. */ + /* + * Stop doing hypercalls if they want to notify the Launcher: + * it needs to service this first. + */ if (cpu->pending_notify) break; } } -/* Last of all, we look at what happens first of all. The very first time the - * Guest makes a hypercall, we end up here to set things up: */ +/* + * Last of all, we look at what happens first of all. The very first time the + * Guest makes a hypercall, we end up here to set things up: + */ static void initialize(struct lg_cpu *cpu) { - /* You can't do anything until you're initialized. The Guest knows the - * rules, so we're unforgiving here. */ + /* + * You can't do anything until you're initialized. The Guest knows the + * rules, so we're unforgiving here. + */ if (cpu->hcall->arg0 != LHCALL_LGUEST_INIT) { kill_guest(cpu, "hypercall %li before INIT", cpu->hcall->arg0); return; @@ -185,32 +212,40 @@ static void initialize(struct lg_cpu *cpu) if (lguest_arch_init_hypercalls(cpu)) kill_guest(cpu, "bad guest page %p", cpu->lg->lguest_data); - /* The Guest tells us where we're not to deliver interrupts by putting - * the range of addresses into "struct lguest_data". */ + /* + * The Guest tells us where we're not to deliver interrupts by putting + * the range of addresses into "struct lguest_data". + */ if (get_user(cpu->lg->noirq_start, &cpu->lg->lguest_data->noirq_start) || get_user(cpu->lg->noirq_end, &cpu->lg->lguest_data->noirq_end)) kill_guest(cpu, "bad guest page %p", cpu->lg->lguest_data); - /* We write the current time into the Guest's data page once so it can - * set its clock. */ + /* + * We write the current time into the Guest's data page once so it can + * set its clock. + */ write_timestamp(cpu); /* page_tables.c will also do some setup. */ page_table_guest_data_init(cpu); - /* This is the one case where the above accesses might have been the + /* + * This is the one case where the above accesses might have been the * first write to a Guest page. This may have caused a copy-on-write * fault, but the old page might be (read-only) in the Guest - * pagetable. */ + * pagetable. + */ guest_pagetable_clear_all(cpu); } /*:*/ -/*M:013 If a Guest reads from a page (so creates a mapping) that it has never +/*M:013 + * If a Guest reads from a page (so creates a mapping) that it has never * written to, and then the Launcher writes to it (ie. the output of a virtual * device), the Guest will still see the old page. In practice, this never * happens: why would the Guest read a page which it has never written to? But - * a similar scenario might one day bite us, so it's worth mentioning. :*/ + * a similar scenario might one day bite us, so it's worth mentioning. +:*/ /*H:100 * Hypercalls @@ -229,17 +264,22 @@ void do_hypercalls(struct lg_cpu *cpu) return; } - /* The Guest has initialized. + /* + * The Guest has initialized. * - * Look in the hypercall ring for the async hypercalls: */ + * Look in the hypercall ring for the async hypercalls: + */ do_async_hcalls(cpu); - /* If we stopped reading the hypercall ring because the Guest did a + /* + * If we stopped reading the hypercall ring because the Guest did a * NOTIFY to the Launcher, we want to return now. Otherwise we do - * the hypercall. */ + * the hypercall. + */ if (!cpu->pending_notify) { do_hcall(cpu, cpu->hcall); - /* Tricky point: we reset the hcall pointer to mark the + /* + * Tricky point: we reset the hcall pointer to mark the * hypercall as "done". We use the hcall pointer rather than * the trap number to indicate a hypercall is pending. * Normally it doesn't matter: the Guest will run again and @@ -248,13 +288,16 @@ void do_hypercalls(struct lg_cpu *cpu) * However, if we are signalled or the Guest sends I/O to the * Launcher, the run_guest() loop will exit without running the * Guest. When it comes back it would try to re-run the - * hypercall. Finding that bug sucked. */ + * hypercall. Finding that bug sucked. + */ cpu->hcall = NULL; } } -/* This routine supplies the Guest with time: it's used for wallclock time at - * initial boot and as a rough time source if the TSC isn't available. */ +/* + * This routine supplies the Guest with time: it's used for wallclock time at + * initial boot and as a rough time source if the TSC isn't available. + */ void write_timestamp(struct lg_cpu *cpu) { struct timespec now; diff --git a/drivers/lguest/interrupts_and_traps.c b/drivers/lguest/interrupts_and_traps.c index 0e9067b0d50..18648180db0 100644 --- a/drivers/lguest/interrupts_and_traps.c +++ b/drivers/lguest/interrupts_and_traps.c @@ -1,4 +1,5 @@ -/*P:800 Interrupts (traps) are complicated enough to earn their own file. +/*P:800 + * Interrupts (traps) are complicated enough to earn their own file. * There are three classes of interrupts: * * 1) Real hardware interrupts which occur while we're running the Guest, @@ -10,7 +11,8 @@ * just like real hardware would deliver them. Traps from the Guest can be set * up to go directly back into the Guest, but sometimes the Host wants to see * them first, so we also have a way of "reflecting" them into the Guest as if - * they had been delivered to it directly. :*/ + * they had been delivered to it directly. +:*/ #include #include #include @@ -26,8 +28,10 @@ static unsigned long idt_address(u32 lo, u32 hi) return (lo & 0x0000FFFF) | (hi & 0xFFFF0000); } -/* The "type" of the interrupt handler is a 4 bit field: we only support a - * couple of types. */ +/* + * The "type" of the interrupt handler is a 4 bit field: we only support a + * couple of types. + */ static int idt_type(u32 lo, u32 hi) { return (hi >> 8) & 0xF; @@ -39,8 +43,10 @@ static bool idt_present(u32 lo, u32 hi) return (hi & 0x8000); } -/* We need a helper to "push" a value onto the Guest's stack, since that's a - * big part of what delivering an interrupt does. */ +/* + * We need a helper to "push" a value onto the Guest's stack, since that's a + * big part of what delivering an interrupt does. + */ static void push_guest_stack(struct lg_cpu *cpu, unsigned long *gstack, u32 val) { /* Stack grows upwards: move stack then write value. */ @@ -48,7 +54,8 @@ static void push_guest_stack(struct lg_cpu *cpu, unsigned long *gstack, u32 val) lgwrite(cpu, *gstack, u32, val); } -/*H:210 The set_guest_interrupt() routine actually delivers the interrupt or +/*H:210 + * The set_guest_interrupt() routine actually delivers the interrupt or * trap. The mechanics of delivering traps and interrupts to the Guest are the * same, except some traps have an "error code" which gets pushed onto the * stack as well: the caller tells us if this is one. @@ -59,7 +66,8 @@ static void push_guest_stack(struct lg_cpu *cpu, unsigned long *gstack, u32 val) * * We set up the stack just like the CPU does for a real interrupt, so it's * identical for the Guest (and the standard "iret" instruction will undo - * it). */ + * it). + */ static void set_guest_interrupt(struct lg_cpu *cpu, u32 lo, u32 hi, bool has_err) { @@ -67,20 +75,26 @@ static void set_guest_interrupt(struct lg_cpu *cpu, u32 lo, u32 hi, u32 eflags, ss, irq_enable; unsigned long virtstack; - /* There are two cases for interrupts: one where the Guest is already + /* + * There are two cases for interrupts: one where the Guest is already * in the kernel, and a more complex one where the Guest is in - * userspace. We check the privilege level to find out. */ + * userspace. We check the privilege level to find out. + */ if ((cpu->regs->ss&0x3) != GUEST_PL) { - /* The Guest told us their kernel stack with the SET_STACK - * hypercall: both the virtual address and the segment */ + /* + * The Guest told us their kernel stack with the SET_STACK + * hypercall: both the virtual address and the segment. + */ virtstack = cpu->esp1; ss = cpu->ss1; origstack = gstack = guest_pa(cpu, virtstack); - /* We push the old stack segment and pointer onto the new + /* + * We push the old stack segment and pointer onto the new * stack: when the Guest does an "iret" back from the interrupt * handler the CPU will notice they're dropping privilege - * levels and expect these here. */ + * levels and expect these here. + */ push_guest_stack(cpu, &gstack, cpu->regs->ss); push_guest_stack(cpu, &gstack, cpu->regs->esp); } else { @@ -91,18 +105,22 @@ static void set_guest_interrupt(struct lg_cpu *cpu, u32 lo, u32 hi, origstack = gstack = guest_pa(cpu, virtstack); } - /* Remember that we never let the Guest actually disable interrupts, so + /* + * Remember that we never let the Guest actually disable interrupts, so * the "Interrupt Flag" bit is always set. We copy that bit from the * Guest's "irq_enabled" field into the eflags word: we saw the Guest - * copy it back in "lguest_iret". */ + * copy it back in "lguest_iret". + */ eflags = cpu->regs->eflags; if (get_user(irq_enable, &cpu->lg->lguest_data->irq_enabled) == 0 && !(irq_enable & X86_EFLAGS_IF)) eflags &= ~X86_EFLAGS_IF; - /* An interrupt is expected to push three things on the stack: the old + /* + * An interrupt is expected to push three things on the stack: the old * "eflags" word, the old code segment, and the old instruction - * pointer. */ + * pointer. + */ push_guest_stack(cpu, &gstack, eflags); push_guest_stack(cpu, &gstack, cpu->regs->cs); push_guest_stack(cpu, &gstack, cpu->regs->eip); @@ -111,15 +129,19 @@ static void set_guest_interrupt(struct lg_cpu *cpu, u32 lo, u32 hi, if (has_err) push_guest_stack(cpu, &gstack, cpu->regs->errcode); - /* Now we've pushed all the old state, we change the stack, the code - * segment and the address to execute. */ + /* + * Now we've pushed all the old state, we change the stack, the code + * segment and the address to execute. + */ cpu->regs->ss = ss; cpu->regs->esp = virtstack + (gstack - origstack); cpu->regs->cs = (__KERNEL_CS|GUEST_PL); cpu->regs->eip = idt_address(lo, hi); - /* There are two kinds of interrupt handlers: 0xE is an "interrupt - * gate" which expects interrupts to be disabled on entry. */ + /* + * There are two kinds of interrupt handlers: 0xE is an "interrupt + * gate" which expects interrupts to be disabled on entry. + */ if (idt_type(lo, hi) == 0xE) if (put_user(0, &cpu->lg->lguest_data->irq_enabled)) kill_guest(cpu, "Disabling interrupts"); @@ -130,7 +152,8 @@ static void set_guest_interrupt(struct lg_cpu *cpu, u32 lo, u32 hi, * * interrupt_pending() returns the first pending interrupt which isn't blocked * by the Guest. It is called before every entry to the Guest, and just before - * we go to sleep when the Guest has halted itself. */ + * we go to sleep when the Guest has halted itself. + */ unsigned int interrupt_pending(struct lg_cpu *cpu, bool *more) { unsigned int irq; @@ -140,8 +163,10 @@ unsigned int interrupt_pending(struct lg_cpu *cpu, bool *more) if (!cpu->lg->lguest_data) return LGUEST_IRQS; - /* Take our "irqs_pending" array and remove any interrupts the Guest - * wants blocked: the result ends up in "blk". */ + /* + * Take our "irqs_pending" array and remove any interrupts the Guest + * wants blocked: the result ends up in "blk". + */ if (copy_from_user(&blk, cpu->lg->lguest_data->blocked_interrupts, sizeof(blk))) return LGUEST_IRQS; @@ -154,16 +179,20 @@ unsigned int interrupt_pending(struct lg_cpu *cpu, bool *more) return irq; } -/* This actually diverts the Guest to running an interrupt handler, once an - * interrupt has been identified by interrupt_pending(). */ +/* + * This actually diverts the Guest to running an interrupt handler, once an + * interrupt has been identified by interrupt_pending(). + */ void try_deliver_interrupt(struct lg_cpu *cpu, unsigned int irq, bool more) { struct desc_struct *idt; BUG_ON(irq >= LGUEST_IRQS); - /* They may be in the middle of an iret, where they asked us never to - * deliver interrupts. */ + /* + * They may be in the middle of an iret, where they asked us never to + * deliver interrupts. + */ if (cpu->regs->eip >= cpu->lg->noirq_start && (cpu->regs->eip < cpu->lg->noirq_end)) return; @@ -187,29 +216,37 @@ void try_deliver_interrupt(struct lg_cpu *cpu, unsigned int irq, bool more) } } - /* Look at the IDT entry the Guest gave us for this interrupt. The + /* + * Look at the IDT entry the Guest gave us for this interrupt. The * first 32 (FIRST_EXTERNAL_VECTOR) entries are for traps, so we skip - * over them. */ + * over them. + */ idt = &cpu->arch.idt[FIRST_EXTERNAL_VECTOR+irq]; /* If they don't have a handler (yet?), we just ignore it */ if (idt_present(idt->a, idt->b)) { /* OK, mark it no longer pending and deliver it. */ clear_bit(irq, cpu->irqs_pending); - /* set_guest_interrupt() takes the interrupt descriptor and a + /* + * set_guest_interrupt() takes the interrupt descriptor and a * flag to say whether this interrupt pushes an error code onto - * the stack as well: virtual interrupts never do. */ + * the stack as well: virtual interrupts never do. + */ set_guest_interrupt(cpu, idt->a, idt->b, false); } - /* Every time we deliver an interrupt, we update the timestamp in the + /* + * Every time we deliver an interrupt, we update the timestamp in the * Guest's lguest_data struct. It would be better for the Guest if we * did this more often, but it can actually be quite slow: doing it * here is a compromise which means at least it gets updated every - * timer interrupt. */ + * timer interrupt. + */ write_timestamp(cpu); - /* If there are no other interrupts we want to deliver, clear - * the pending flag. */ + /* + * If there are no other interrupts we want to deliver, clear + * the pending flag. + */ if (!more) put_user(0, &cpu->lg->lguest_data->irq_pending); } @@ -217,24 +254,29 @@ void try_deliver_interrupt(struct lg_cpu *cpu, unsigned int irq, bool more) /* And this is the routine when we want to set an interrupt for the Guest. */ void set_interrupt(struct lg_cpu *cpu, unsigned int irq) { - /* Next time the Guest runs, the core code will see if it can deliver - * this interrupt. */ + /* + * Next time the Guest runs, the core code will see if it can deliver + * this interrupt. + */ set_bit(irq, cpu->irqs_pending); - /* Make sure it sees it; it might be asleep (eg. halted), or - * running the Guest right now, in which case kick_process() - * will knock it out. */ + /* + * Make sure it sees it; it might be asleep (eg. halted), or running + * the Guest right now, in which case kick_process() will knock it out. + */ if (!wake_up_process(cpu->tsk)) kick_process(cpu->tsk); } /*:*/ -/* Linux uses trap 128 for system calls. Plan9 uses 64, and Ron Minnich sent +/* + * Linux uses trap 128 for system calls. Plan9 uses 64, and Ron Minnich sent * me a patch, so we support that too. It'd be a big step for lguest if half * the Plan 9 user base were to start using it. * * Actually now I think of it, it's possible that Ron *is* half the Plan 9 - * userbase. Oh well. */ + * userbase. Oh well. + */ static bool could_be_syscall(unsigned int num) { /* Normal Linux SYSCALL_VECTOR or reserved vector? */ @@ -274,9 +316,11 @@ void free_interrupts(void) clear_bit(syscall_vector, used_vectors); } -/*H:220 Now we've got the routines to deliver interrupts, delivering traps like +/*H:220 + * Now we've got the routines to deliver interrupts, delivering traps like * page fault is easy. The only trick is that Intel decided that some traps - * should have error codes: */ + * should have error codes: + */ static bool has_err(unsigned int trap) { return (trap == 8 || (trap >= 10 && trap <= 14) || trap == 17); @@ -285,13 +329,17 @@ static bool has_err(unsigned int trap) /* deliver_trap() returns true if it could deliver the trap. */ bool deliver_trap(struct lg_cpu *cpu, unsigned int num) { - /* Trap numbers are always 8 bit, but we set an impossible trap number - * for traps inside the Switcher, so check that here. */ + /* + * Trap numbers are always 8 bit, but we set an impossible trap number + * for traps inside the Switcher, so check that here. + */ if (num >= ARRAY_SIZE(cpu->arch.idt)) return false; - /* Early on the Guest hasn't set the IDT entries (or maybe it put a - * bogus one in): if we fail here, the Guest will be killed. */ + /* + * Early on the Guest hasn't set the IDT entries (or maybe it put a + * bogus one in): if we fail here, the Guest will be killed. + */ if (!idt_present(cpu->arch.idt[num].a, cpu->arch.idt[num].b)) return false; set_guest_interrupt(cpu, cpu->arch.idt[num].a, @@ -299,7 +347,8 @@ bool deliver_trap(struct lg_cpu *cpu, unsigned int num) return true; } -/*H:250 Here's the hard part: returning to the Host every time a trap happens +/*H:250 + * Here's the hard part: returning to the Host every time a trap happens * and then calling deliver_trap() and re-entering the Guest is slow. * Particularly because Guest userspace system calls are traps (usually trap * 128). @@ -311,69 +360,87 @@ bool deliver_trap(struct lg_cpu *cpu, unsigned int num) * the other hypervisors would beat it up at lunchtime. * * This routine indicates if a particular trap number could be delivered - * directly. */ + * directly. + */ static bool direct_trap(unsigned int num) { - /* Hardware interrupts don't go to the Guest at all (except system - * call). */ + /* + * Hardware interrupts don't go to the Guest at all (except system + * call). + */ if (num >= FIRST_EXTERNAL_VECTOR && !could_be_syscall(num)) return false; - /* The Host needs to see page faults (for shadow paging and to save the + /* + * The Host needs to see page faults (for shadow paging and to save the * fault address), general protection faults (in/out emulation) and * device not available (TS handling), invalid opcode fault (kvm hcall), - * and of course, the hypercall trap. */ + * and of course, the hypercall trap. + */ return num != 14 && num != 13 && num != 7 && num != 6 && num != LGUEST_TRAP_ENTRY; } /*:*/ -/*M:005 The Guest has the ability to turn its interrupt gates into trap gates, +/*M:005 + * The Guest has the ability to turn its interrupt gates into trap gates, * if it is careful. The Host will let trap gates can go directly to the * Guest, but the Guest needs the interrupts atomically disabled for an * interrupt gate. It can do this by pointing the trap gate at instructions - * within noirq_start and noirq_end, where it can safely disable interrupts. */ + * within noirq_start and noirq_end, where it can safely disable interrupts. + */ -/*M:006 The Guests do not use the sysenter (fast system call) instruction, +/*M:006 + * The Guests do not use the sysenter (fast system call) instruction, * because it's hardcoded to enter privilege level 0 and so can't go direct. * It's about twice as fast as the older "int 0x80" system call, so it might * still be worthwhile to handle it in the Switcher and lcall down to the * Guest. The sysenter semantics are hairy tho: search for that keyword in - * entry.S :*/ + * entry.S +:*/ -/*H:260 When we make traps go directly into the Guest, we need to make sure +/*H:260 + * When we make traps go directly into the Guest, we need to make sure * the kernel stack is valid (ie. mapped in the page tables). Otherwise, the * CPU trying to deliver the trap will fault while trying to push the interrupt * words on the stack: this is called a double fault, and it forces us to kill * the Guest. * - * Which is deeply unfair, because (literally!) it wasn't the Guests' fault. */ + * Which is deeply unfair, because (literally!) it wasn't the Guests' fault. + */ void pin_stack_pages(struct lg_cpu *cpu) { unsigned int i; - /* Depending on the CONFIG_4KSTACKS option, the Guest can have one or - * two pages of stack space. */ + /* + * Depending on the CONFIG_4KSTACKS option, the Guest can have one or + * two pages of stack space. + */ for (i = 0; i < cpu->lg->stack_pages; i++) - /* The stack grows *upwards*, so the address we're given is the + /* + * The stack grows *upwards*, so the address we're given is the * start of the page after the kernel stack. Subtract one to * get back onto the first stack page, and keep subtracting to - * get to the rest of the stack pages. */ + * get to the rest of the stack pages. + */ pin_page(cpu, cpu->esp1 - 1 - i * PAGE_SIZE); } -/* Direct traps also mean that we need to know whenever the Guest wants to use +/* + * Direct traps also mean that we need to know whenever the Guest wants to use * a different kernel stack, so we can change the IDT entries to use that * stack. The IDT entries expect a virtual address, so unlike most addresses * the Guest gives us, the "esp" (stack pointer) value here is virtual, not * physical. * * In Linux each process has its own kernel stack, so this happens a lot: we - * change stacks on each context switch. */ + * change stacks on each context switch. + */ void guest_set_stack(struct lg_cpu *cpu, u32 seg, u32 esp, unsigned int pages) { - /* You are not allowed have a stack segment with privilege level 0: bad - * Guest! */ + /* + * You're not allowed a stack segment with privilege level 0: bad Guest! + */ if ((seg & 0x3) != GUEST_PL) kill_guest(cpu, "bad stack segment %i", seg); /* We only expect one or two stack pages. */ @@ -387,11 +454,15 @@ void guest_set_stack(struct lg_cpu *cpu, u32 seg, u32 esp, unsigned int pages) pin_stack_pages(cpu); } -/* All this reference to mapping stacks leads us neatly into the other complex - * part of the Host: page table handling. */ +/* + * All this reference to mapping stacks leads us neatly into the other complex + * part of the Host: page table handling. + */ -/*H:235 This is the routine which actually checks the Guest's IDT entry and - * transfers it into the entry in "struct lguest": */ +/*H:235 + * This is the routine which actually checks the Guest's IDT entry and + * transfers it into the entry in "struct lguest": + */ static void set_trap(struct lg_cpu *cpu, struct desc_struct *trap, unsigned int num, u32 lo, u32 hi) { @@ -407,30 +478,38 @@ static void set_trap(struct lg_cpu *cpu, struct desc_struct *trap, if (type != 0xE && type != 0xF) kill_guest(cpu, "bad IDT type %i", type); - /* We only copy the handler address, present bit, privilege level and + /* + * We only copy the handler address, present bit, privilege level and * type. The privilege level controls where the trap can be triggered * manually with an "int" instruction. This is usually GUEST_PL, - * except for system calls which userspace can use. */ + * except for system calls which userspace can use. + */ trap->a = ((__KERNEL_CS|GUEST_PL)<<16) | (lo&0x0000FFFF); trap->b = (hi&0xFFFFEF00); } -/*H:230 While we're here, dealing with delivering traps and interrupts to the +/*H:230 + * While we're here, dealing with delivering traps and interrupts to the * Guest, we might as well complete the picture: how the Guest tells us where * it wants them to go. This would be simple, except making traps fast * requires some tricks. * * We saw the Guest setting Interrupt Descriptor Table (IDT) entries with the - * LHCALL_LOAD_IDT_ENTRY hypercall before: that comes here. */ + * LHCALL_LOAD_IDT_ENTRY hypercall before: that comes here. + */ void load_guest_idt_entry(struct lg_cpu *cpu, unsigned int num, u32 lo, u32 hi) { - /* Guest never handles: NMI, doublefault, spurious interrupt or - * hypercall. We ignore when it tries to set them. */ + /* + * Guest never handles: NMI, doublefault, spurious interrupt or + * hypercall. We ignore when it tries to set them. + */ if (num == 2 || num == 8 || num == 15 || num == LGUEST_TRAP_ENTRY) return; - /* Mark the IDT as changed: next time the Guest runs we'll know we have - * to copy this again. */ + /* + * Mark the IDT as changed: next time the Guest runs we'll know we have + * to copy this again. + */ cpu->changed |= CHANGED_IDT; /* Check that the Guest doesn't try to step outside the bounds. */ @@ -440,9 +519,11 @@ void load_guest_idt_entry(struct lg_cpu *cpu, unsigned int num, u32 lo, u32 hi) set_trap(cpu, &cpu->arch.idt[num], num, lo, hi); } -/* The default entry for each interrupt points into the Switcher routines which +/* + * The default entry for each interrupt points into the Switcher routines which * simply return to the Host. The run_guest() loop will then call - * deliver_trap() to bounce it back into the Guest. */ + * deliver_trap() to bounce it back into the Guest. + */ static void default_idt_entry(struct desc_struct *idt, int trap, const unsigned long handler, @@ -451,13 +532,17 @@ static void default_idt_entry(struct desc_struct *idt, /* A present interrupt gate. */ u32 flags = 0x8e00; - /* Set the privilege level on the entry for the hypercall: this allows - * the Guest to use the "int" instruction to trigger it. */ + /* + * Set the privilege level on the entry for the hypercall: this allows + * the Guest to use the "int" instruction to trigger it. + */ if (trap == LGUEST_TRAP_ENTRY) flags |= (GUEST_PL << 13); else if (base) - /* Copy priv. level from what Guest asked for. This allows - * debug (int 3) traps from Guest userspace, for example. */ + /* + * Copy privilege level from what Guest asked for. This allows + * debug (int 3) traps from Guest userspace, for example. + */ flags |= (base->b & 0x6000); /* Now pack it into the IDT entry in its weird format. */ @@ -475,16 +560,20 @@ void setup_default_idt_entries(struct lguest_ro_state *state, default_idt_entry(&state->guest_idt[i], i, def[i], NULL); } -/*H:240 We don't use the IDT entries in the "struct lguest" directly, instead +/*H:240 + * We don't use the IDT entries in the "struct lguest" directly, instead * we copy them into the IDT which we've set up for Guests on this CPU, just - * before we run the Guest. This routine does that copy. */ + * before we run the Guest. This routine does that copy. + */ void copy_traps(const struct lg_cpu *cpu, struct desc_struct *idt, const unsigned long *def) { unsigned int i; - /* We can simply copy the direct traps, otherwise we use the default - * ones in the Switcher: they will return to the Host. */ + /* + * We can simply copy the direct traps, otherwise we use the default + * ones in the Switcher: they will return to the Host. + */ for (i = 0; i < ARRAY_SIZE(cpu->arch.idt); i++) { const struct desc_struct *gidt = &cpu->arch.idt[i]; @@ -492,14 +581,16 @@ void copy_traps(const struct lg_cpu *cpu, struct desc_struct *idt, if (!direct_trap(i)) continue; - /* Only trap gates (type 15) can go direct to the Guest. + /* + * Only trap gates (type 15) can go direct to the Guest. * Interrupt gates (type 14) disable interrupts as they are * entered, which we never let the Guest do. Not present * entries (type 0x0) also can't go direct, of course. * * If it can't go direct, we still need to copy the priv. level: * they might want to give userspace access to a software - * interrupt. */ + * interrupt. + */ if (idt_type(gidt->a, gidt->b) == 0xF) idt[i] = *gidt; else @@ -518,7 +609,8 @@ void copy_traps(const struct lg_cpu *cpu, struct desc_struct *idt, * the next timer interrupt (in nanoseconds). We use the high-resolution timer * infrastructure to set a callback at that time. * - * 0 means "turn off the clock". */ + * 0 means "turn off the clock". + */ void guest_set_clockevent(struct lg_cpu *cpu, unsigned long delta) { ktime_t expires; @@ -529,9 +621,11 @@ void guest_set_clockevent(struct lg_cpu *cpu, unsigned long delta) return; } - /* We use wallclock time here, so the Guest might not be running for + /* + * We use wallclock time here, so the Guest might not be running for * all the time between now and the timer interrupt it asked for. This - * is almost always the right thing to do. */ + * is almost always the right thing to do. + */ expires = ktime_add_ns(ktime_get_real(), delta); hrtimer_start(&cpu->hrt, expires, HRTIMER_MODE_ABS); } diff --git a/drivers/lguest/lg.h b/drivers/lguest/lg.h index 01c59192379..74c0db691b5 100644 --- a/drivers/lguest/lg.h +++ b/drivers/lguest/lg.h @@ -54,13 +54,13 @@ struct lg_cpu { unsigned long pending_notify; /* pfn from LHCALL_NOTIFY */ - /* At end of a page shared mapped over lguest_pages in guest. */ + /* At end of a page shared mapped over lguest_pages in guest. */ unsigned long regs_page; struct lguest_regs *regs; struct lguest_pages *last_pages; - int cpu_pgd; /* which pgd this cpu is currently using */ + int cpu_pgd; /* Which pgd this cpu is currently using */ /* If a hypercall was asked for, this points to the arguments. */ struct hcall_args *hcall; @@ -96,8 +96,11 @@ struct lguest unsigned int nr_cpus; u32 pfn_limit; - /* This provides the offset to the base of guest-physical - * memory in the Launcher. */ + + /* + * This provides the offset to the base of guest-physical memory in the + * Launcher. + */ void __user *mem_base; unsigned long kernel_address; @@ -122,11 +125,13 @@ bool lguest_address_ok(const struct lguest *lg, void __lgread(struct lg_cpu *, void *, unsigned long, unsigned); void __lgwrite(struct lg_cpu *, unsigned long, const void *, unsigned); -/*H:035 Using memory-copy operations like that is usually inconvient, so we +/*H:035 + * Using memory-copy operations like that is usually inconvient, so we * have the following helper macros which read and write a specific type (often * an unsigned long). * - * This reads into a variable of the given type then returns that. */ + * This reads into a variable of the given type then returns that. + */ #define lgread(cpu, addr, type) \ ({ type _v; __lgread((cpu), &_v, (addr), sizeof(_v)); _v; }) @@ -140,9 +145,11 @@ void __lgwrite(struct lg_cpu *, unsigned long, const void *, unsigned); int run_guest(struct lg_cpu *cpu, unsigned long __user *user); -/* Helper macros to obtain the first 12 or the last 20 bits, this is only the +/* + * Helper macros to obtain the first 12 or the last 20 bits, this is only the * first step in the migration to the kernel types. pte_pfn is already defined - * in the kernel. */ + * in the kernel. + */ #define pgd_flags(x) (pgd_val(x) & ~PAGE_MASK) #define pgd_pfn(x) (pgd_val(x) >> PAGE_SHIFT) #define pmd_flags(x) (pmd_val(x) & ~PAGE_MASK) diff --git a/drivers/lguest/lguest_device.c b/drivers/lguest/lguest_device.c index e082cdac88b..cc000e79c3d 100644 --- a/drivers/lguest/lguest_device.c +++ b/drivers/lguest/lguest_device.c @@ -1,10 +1,12 @@ -/*P:050 Lguest guests use a very simple method to describe devices. It's a +/*P:050 + * Lguest guests use a very simple method to describe devices. It's a * series of device descriptors contained just above the top of normal Guest * memory. * * We use the standard "virtio" device infrastructure, which provides us with a * console, a network and a block driver. Each one expects some configuration - * information and a "virtqueue" or two to send and receive data. :*/ + * information and a "virtqueue" or two to send and receive data. +:*/ #include #include #include @@ -20,8 +22,10 @@ /* The pointer to our (page) of device descriptions. */ static void *lguest_devices; -/* For Guests, device memory can be used as normal memory, so we cast away the - * __iomem to quieten sparse. */ +/* + * For Guests, device memory can be used as normal memory, so we cast away the + * __iomem to quieten sparse. + */ static inline void *lguest_map(unsigned long phys_addr, unsigned long pages) { return (__force void *)ioremap_cache(phys_addr, PAGE_SIZE*pages); @@ -32,8 +36,10 @@ static inline void lguest_unmap(void *addr) iounmap((__force void __iomem *)addr); } -/*D:100 Each lguest device is just a virtio device plus a pointer to its entry - * in the lguest_devices page. */ +/*D:100 + * Each lguest device is just a virtio device plus a pointer to its entry + * in the lguest_devices page. + */ struct lguest_device { struct virtio_device vdev; @@ -41,9 +47,11 @@ struct lguest_device { struct lguest_device_desc *desc; }; -/* Since the virtio infrastructure hands us a pointer to the virtio_device all +/* + * Since the virtio infrastructure hands us a pointer to the virtio_device all * the time, it helps to have a curt macro to get a pointer to the struct - * lguest_device it's enclosed in. */ + * lguest_device it's enclosed in. + */ #define to_lgdev(vd) container_of(vd, struct lguest_device, vdev) /*D:130 @@ -55,7 +63,8 @@ struct lguest_device { * the driver will look at them during setup. * * A convenient routine to return the device's virtqueue config array: - * immediately after the descriptor. */ + * immediately after the descriptor. + */ static struct lguest_vqconfig *lg_vq(const struct lguest_device_desc *desc) { return (void *)(desc + 1); @@ -98,10 +107,12 @@ static u32 lg_get_features(struct virtio_device *vdev) return features; } -/* The virtio core takes the features the Host offers, and copies the - * ones supported by the driver into the vdev->features array. Once - * that's all sorted out, this routine is called so we can tell the - * Host which features we understand and accept. */ +/* + * The virtio core takes the features the Host offers, and copies the ones + * supported by the driver into the vdev->features array. Once that's all + * sorted out, this routine is called so we can tell the Host which features we + * understand and accept. + */ static void lg_finalize_features(struct virtio_device *vdev) { unsigned int i, bits; @@ -112,10 +123,11 @@ static void lg_finalize_features(struct virtio_device *vdev) /* Give virtio_ring a chance to accept features. */ vring_transport_features(vdev); - /* The vdev->feature array is a Linux bitmask: this isn't the - * same as a the simple array of bits used by lguest devices - * for features. So we do this slow, manual conversion which is - * completely general. */ + /* + * The vdev->feature array is a Linux bitmask: this isn't the same as a + * the simple array of bits used by lguest devices for features. So we + * do this slow, manual conversion which is completely general. + */ memset(out_features, 0, desc->feature_len); bits = min_t(unsigned, desc->feature_len, sizeof(vdev->features)) * 8; for (i = 0; i < bits; i++) { @@ -146,15 +158,19 @@ static void lg_set(struct virtio_device *vdev, unsigned int offset, memcpy(lg_config(desc) + offset, buf, len); } -/* The operations to get and set the status word just access the status field - * of the device descriptor. */ +/* + * The operations to get and set the status word just access the status field + * of the device descriptor. + */ static u8 lg_get_status(struct virtio_device *vdev) { return to_lgdev(vdev)->desc->status; } -/* To notify on status updates, we (ab)use the NOTIFY hypercall, with the - * descriptor address of the device. A zero status means "reset". */ +/* + * To notify on status updates, we (ab)use the NOTIFY hypercall, with the + * descriptor address of the device. A zero status means "reset". + */ static void set_status(struct virtio_device *vdev, u8 status) { unsigned long offset = (void *)to_lgdev(vdev)->desc - lguest_devices; @@ -200,13 +216,17 @@ struct lguest_vq_info void *pages; }; -/* When the virtio_ring code wants to prod the Host, it calls us here and we +/* + * When the virtio_ring code wants to prod the Host, it calls us here and we * make a hypercall. We hand the physical address of the virtqueue so the Host - * knows which virtqueue we're talking about. */ + * knows which virtqueue we're talking about. + */ static void lg_notify(struct virtqueue *vq) { - /* We store our virtqueue information in the "priv" pointer of the - * virtqueue structure. */ + /* + * We store our virtqueue information in the "priv" pointer of the + * virtqueue structure. + */ struct lguest_vq_info *lvq = vq->priv; kvm_hypercall1(LHCALL_NOTIFY, lvq->config.pfn << PAGE_SHIFT); @@ -215,7 +235,8 @@ static void lg_notify(struct virtqueue *vq) /* An extern declaration inside a C file is bad form. Don't do it. */ extern void lguest_setup_irq(unsigned int irq); -/* This routine finds the first virtqueue described in the configuration of +/* + * This routine finds the first virtqueue described in the configuration of * this device and sets it up. * * This is kind of an ugly duckling. It'd be nicer to have a standard @@ -225,7 +246,8 @@ extern void lguest_setup_irq(unsigned int irq); * simpler for the Host to simply tell us where the pages are. * * So we provide drivers with a "find the Nth virtqueue and set it up" - * function. */ + * function. + */ static struct virtqueue *lg_find_vq(struct virtio_device *vdev, unsigned index, void (*callback)(struct virtqueue *vq), @@ -244,9 +266,11 @@ static struct virtqueue *lg_find_vq(struct virtio_device *vdev, if (!lvq) return ERR_PTR(-ENOMEM); - /* Make a copy of the "struct lguest_vqconfig" entry, which sits after + /* + * Make a copy of the "struct lguest_vqconfig" entry, which sits after * the descriptor. We need a copy because the config space might not - * be aligned correctly. */ + * be aligned correctly. + */ memcpy(&lvq->config, lg_vq(ldev->desc)+index, sizeof(lvq->config)); printk("Mapping virtqueue %i addr %lx\n", index, @@ -261,8 +285,10 @@ static struct virtqueue *lg_find_vq(struct virtio_device *vdev, goto free_lvq; } - /* OK, tell virtio_ring.c to set up a virtqueue now we know its size - * and we've got a pointer to its pages. */ + /* + * OK, tell virtio_ring.c to set up a virtqueue now we know its size + * and we've got a pointer to its pages. + */ vq = vring_new_virtqueue(lvq->config.num, LGUEST_VRING_ALIGN, vdev, lvq->pages, lg_notify, callback, name); if (!vq) { @@ -273,18 +299,23 @@ static struct virtqueue *lg_find_vq(struct virtio_device *vdev, /* Make sure the interrupt is allocated. */ lguest_setup_irq(lvq->config.irq); - /* Tell the interrupt for this virtqueue to go to the virtio_ring - * interrupt handler. */ - /* FIXME: We used to have a flag for the Host to tell us we could use + /* + * Tell the interrupt for this virtqueue to go to the virtio_ring + * interrupt handler. + * + * FIXME: We used to have a flag for the Host to tell us we could use * the interrupt as a source of randomness: it'd be nice to have that - * back.. */ + * back. + */ err = request_irq(lvq->config.irq, vring_interrupt, IRQF_SHARED, dev_name(&vdev->dev), vq); if (err) goto destroy_vring; - /* Last of all we hook up our 'struct lguest_vq_info" to the - * virtqueue's priv pointer. */ + /* + * Last of all we hook up our 'struct lguest_vq_info" to the + * virtqueue's priv pointer. + */ vq->priv = lvq; return vq; @@ -358,11 +389,14 @@ static struct virtio_config_ops lguest_config_ops = { .del_vqs = lg_del_vqs, }; -/* The root device for the lguest virtio devices. This makes them appear as - * /sys/devices/lguest/0,1,2 not /sys/devices/0,1,2. */ +/* + * The root device for the lguest virtio devices. This makes them appear as + * /sys/devices/lguest/0,1,2 not /sys/devices/0,1,2. + */ static struct device *lguest_root; -/*D:120 This is the core of the lguest bus: actually adding a new device. +/*D:120 + * This is the core of the lguest bus: actually adding a new device. * It's a separate function because it's neater that way, and because an * earlier version of the code supported hotplug and unplug. They were removed * early on because they were never used. @@ -371,14 +405,14 @@ static struct device *lguest_root; * * It's worth reading this carefully: we start with a pointer to the new device * descriptor in the "lguest_devices" page, and the offset into the device - * descriptor page so we can uniquely identify it if things go badly wrong. */ + * descriptor page so we can uniquely identify it if things go badly wrong. + */ static void add_lguest_device(struct lguest_device_desc *d, unsigned int offset) { struct lguest_device *ldev; - /* Start with zeroed memory; Linux's device layer seems to count on - * it. */ + /* Start with zeroed memory; Linux's device layer counts on it. */ ldev = kzalloc(sizeof(*ldev), GFP_KERNEL); if (!ldev) { printk(KERN_EMERG "Cannot allocate lguest dev %u type %u\n", @@ -390,15 +424,19 @@ static void add_lguest_device(struct lguest_device_desc *d, ldev->vdev.dev.parent = lguest_root; /* We have a unique device index thanks to the dev_index counter. */ ldev->vdev.id.device = d->type; - /* We have a simple set of routines for querying the device's - * configuration information and setting its status. */ + /* + * We have a simple set of routines for querying the device's + * configuration information and setting its status. + */ ldev->vdev.config = &lguest_config_ops; /* And we remember the device's descriptor for lguest_config_ops. */ ldev->desc = d; - /* register_virtio_device() sets up the generic fields for the struct + /* + * register_virtio_device() sets up the generic fields for the struct * virtio_device and calls device_register(). This makes the bus - * infrastructure look for a matching driver. */ + * infrastructure look for a matching driver. + */ if (register_virtio_device(&ldev->vdev) != 0) { printk(KERN_ERR "Failed to register lguest dev %u type %u\n", offset, d->type); @@ -406,8 +444,10 @@ static void add_lguest_device(struct lguest_device_desc *d, } } -/*D:110 scan_devices() simply iterates through the device page. The type 0 is - * reserved to mean "end of devices". */ +/*D:110 + * scan_devices() simply iterates through the device page. The type 0 is + * reserved to mean "end of devices". + */ static void scan_devices(void) { unsigned int i; @@ -426,7 +466,8 @@ static void scan_devices(void) } } -/*D:105 Fairly early in boot, lguest_devices_init() is called to set up the +/*D:105 + * Fairly early in boot, lguest_devices_init() is called to set up the * lguest device infrastructure. We check that we are a Guest by checking * pv_info.name: there are other ways of checking, but this seems most * obvious to me. @@ -437,7 +478,8 @@ static void scan_devices(void) * correct sysfs incantation). * * Finally we call scan_devices() which adds all the devices found in the - * lguest_devices page. */ + * lguest_devices page. + */ static int __init lguest_devices_init(void) { if (strcmp(pv_info.name, "lguest") != 0) @@ -456,11 +498,13 @@ static int __init lguest_devices_init(void) /* We do this after core stuff, but before the drivers. */ postcore_initcall(lguest_devices_init); -/*D:150 At this point in the journey we used to now wade through the lguest +/*D:150 + * At this point in the journey we used to now wade through the lguest * devices themselves: net, block and console. Since they're all now virtio * devices rather than lguest-specific, I've decided to ignore them. Mostly, * they're kind of boring. But this does mean you'll never experience the * thrill of reading the forbidden love scene buried deep in the block driver. * * "make Launcher" beckons, where we answer questions like "Where do Guests - * come from?", and "What do you do when someone asks for optimization?". */ + * come from?", and "What do you do when someone asks for optimization?". + */ diff --git a/drivers/lguest/lguest_user.c b/drivers/lguest/lguest_user.c index 407722a8e0c..7e92017103d 100644 --- a/drivers/lguest/lguest_user.c +++ b/drivers/lguest/lguest_user.c @@ -1,8 +1,10 @@ -/*P:200 This contains all the /dev/lguest code, whereby the userspace launcher +/*P:200 + * This contains all the /dev/lguest code, whereby the userspace launcher * controls and communicates with the Guest. For example, the first write will * tell us the Guest's memory layout, pagetable, entry point and kernel address * offset. A read will run the Guest until something happens, such as a signal - * or the Guest doing a NOTIFY out to the Launcher. :*/ + * or the Guest doing a NOTIFY out to the Launcher. +:*/ #include #include #include @@ -37,8 +39,10 @@ static int add_eventfd(struct lguest *lg, unsigned long addr, int fd) if (!addr) return -EINVAL; - /* Replace the old array with the new one, carefully: others can - * be accessing it at the same time */ + /* + * Replace the old array with the new one, carefully: others can + * be accessing it at the same time. + */ new = kmalloc(sizeof(*new) + sizeof(new->map[0]) * (old->num + 1), GFP_KERNEL); if (!new) @@ -61,8 +65,10 @@ static int add_eventfd(struct lguest *lg, unsigned long addr, int fd) /* Now put new one in place. */ rcu_assign_pointer(lg->eventfds, new); - /* We're not in a big hurry. Wait until noone's looking at old - * version, then delete it. */ + /* + * We're not in a big hurry. Wait until noone's looking at old + * version, then delete it. + */ synchronize_rcu(); kfree(old); @@ -87,8 +93,10 @@ static int attach_eventfd(struct lguest *lg, const unsigned long __user *input) return err; } -/*L:050 Sending an interrupt is done by writing LHREQ_IRQ and an interrupt - * number to /dev/lguest. */ +/*L:050 + * Sending an interrupt is done by writing LHREQ_IRQ and an interrupt + * number to /dev/lguest. + */ static int user_send_irq(struct lg_cpu *cpu, const unsigned long __user *input) { unsigned long irq; @@ -102,8 +110,10 @@ static int user_send_irq(struct lg_cpu *cpu, const unsigned long __user *input) return 0; } -/*L:040 Once our Guest is initialized, the Launcher makes it run by reading - * from /dev/lguest. */ +/*L:040 + * Once our Guest is initialized, the Launcher makes it run by reading + * from /dev/lguest. + */ static ssize_t read(struct file *file, char __user *user, size_t size,loff_t*o) { struct lguest *lg = file->private_data; @@ -139,8 +149,10 @@ static ssize_t read(struct file *file, char __user *user, size_t size,loff_t*o) return len; } - /* If we returned from read() last time because the Guest sent I/O, - * clear the flag. */ + /* + * If we returned from read() last time because the Guest sent I/O, + * clear the flag. + */ if (cpu->pending_notify) cpu->pending_notify = 0; @@ -148,8 +160,10 @@ static ssize_t read(struct file *file, char __user *user, size_t size,loff_t*o) return run_guest(cpu, (unsigned long __user *)user); } -/*L:025 This actually initializes a CPU. For the moment, a Guest is only - * uniprocessor, so "id" is always 0. */ +/*L:025 + * This actually initializes a CPU. For the moment, a Guest is only + * uniprocessor, so "id" is always 0. + */ static int lg_cpu_start(struct lg_cpu *cpu, unsigned id, unsigned long start_ip) { /* We have a limited number the number of CPUs in the lguest struct. */ @@ -164,8 +178,10 @@ static int lg_cpu_start(struct lg_cpu *cpu, unsigned id, unsigned long start_ip) /* Each CPU has a timer it can set. */ init_clockdev(cpu); - /* We need a complete page for the Guest registers: they are accessible - * to the Guest and we can only grant it access to whole pages. */ + /* + * We need a complete page for the Guest registers: they are accessible + * to the Guest and we can only grant it access to whole pages. + */ cpu->regs_page = get_zeroed_page(GFP_KERNEL); if (!cpu->regs_page) return -ENOMEM; @@ -173,29 +189,38 @@ static int lg_cpu_start(struct lg_cpu *cpu, unsigned id, unsigned long start_ip) /* We actually put the registers at the bottom of the page. */ cpu->regs = (void *)cpu->regs_page + PAGE_SIZE - sizeof(*cpu->regs); - /* Now we initialize the Guest's registers, handing it the start - * address. */ + /* + * Now we initialize the Guest's registers, handing it the start + * address. + */ lguest_arch_setup_regs(cpu, start_ip); - /* We keep a pointer to the Launcher task (ie. current task) for when - * other Guests want to wake this one (eg. console input). */ + /* + * We keep a pointer to the Launcher task (ie. current task) for when + * other Guests want to wake this one (eg. console input). + */ cpu->tsk = current; - /* We need to keep a pointer to the Launcher's memory map, because if + /* + * We need to keep a pointer to the Launcher's memory map, because if * the Launcher dies we need to clean it up. If we don't keep a - * reference, it is destroyed before close() is called. */ + * reference, it is destroyed before close() is called. + */ cpu->mm = get_task_mm(cpu->tsk); - /* We remember which CPU's pages this Guest used last, for optimization - * when the same Guest runs on the same CPU twice. */ + /* + * We remember which CPU's pages this Guest used last, for optimization + * when the same Guest runs on the same CPU twice. + */ cpu->last_pages = NULL; /* No error == success. */ return 0; } -/*L:020 The initialization write supplies 3 pointer sized (32 or 64 bit) - * values (in addition to the LHREQ_INITIALIZE value). These are: +/*L:020 + * The initialization write supplies 3 pointer sized (32 or 64 bit) values (in + * addition to the LHREQ_INITIALIZE value). These are: * * base: The start of the Guest-physical memory inside the Launcher memory. * @@ -207,14 +232,15 @@ static int lg_cpu_start(struct lg_cpu *cpu, unsigned id, unsigned long start_ip) */ static int initialize(struct file *file, const unsigned long __user *input) { - /* "struct lguest" contains everything we (the Host) know about a - * Guest. */ + /* "struct lguest" contains all we (the Host) know about a Guest. */ struct lguest *lg; int err; unsigned long args[3]; - /* We grab the Big Lguest lock, which protects against multiple - * simultaneous initializations. */ + /* + * We grab the Big Lguest lock, which protects against multiple + * simultaneous initializations. + */ mutex_lock(&lguest_lock); /* You can't initialize twice! Close the device and start again... */ if (file->private_data) { @@ -249,8 +275,10 @@ static int initialize(struct file *file, const unsigned long __user *input) if (err) goto free_eventfds; - /* Initialize the Guest's shadow page tables, using the toplevel - * address the Launcher gave us. This allocates memory, so can fail. */ + /* + * Initialize the Guest's shadow page tables, using the toplevel + * address the Launcher gave us. This allocates memory, so can fail. + */ err = init_guest_pagetable(lg); if (err) goto free_regs; @@ -275,7 +303,8 @@ unlock: return err; } -/*L:010 The first operation the Launcher does must be a write. All writes +/*L:010 + * The first operation the Launcher does must be a write. All writes * start with an unsigned long number: for the first write this must be * LHREQ_INITIALIZE to set up the Guest. After that the Launcher can use * writes of other values to send interrupts. @@ -283,12 +312,15 @@ unlock: * Note that we overload the "offset" in the /dev/lguest file to indicate what * CPU number we're dealing with. Currently this is always 0, since we only * support uniprocessor Guests, but you can see the beginnings of SMP support - * here. */ + * here. + */ static ssize_t write(struct file *file, const char __user *in, size_t size, loff_t *off) { - /* Once the Guest is initialized, we hold the "struct lguest" in the - * file private data. */ + /* + * Once the Guest is initialized, we hold the "struct lguest" in the + * file private data. + */ struct lguest *lg = file->private_data; const unsigned long __user *input = (const unsigned long __user *)in; unsigned long req; @@ -323,13 +355,15 @@ static ssize_t write(struct file *file, const char __user *in, } } -/*L:060 The final piece of interface code is the close() routine. It reverses +/*L:060 + * The final piece of interface code is the close() routine. It reverses * everything done in initialize(). This is usually called because the * Launcher exited. * * Note that the close routine returns 0 or a negative error number: it can't * really fail, but it can whine. I blame Sun for this wart, and K&R C for - * letting them do it. :*/ + * letting them do it. +:*/ static int close(struct inode *inode, struct file *file) { struct lguest *lg = file->private_data; @@ -339,8 +373,10 @@ static int close(struct inode *inode, struct file *file) if (!lg) return 0; - /* We need the big lock, to protect from inter-guest I/O and other - * Launchers initializing guests. */ + /* + * We need the big lock, to protect from inter-guest I/O and other + * Launchers initializing guests. + */ mutex_lock(&lguest_lock); /* Free up the shadow page tables for the Guest. */ @@ -351,8 +387,10 @@ static int close(struct inode *inode, struct file *file) hrtimer_cancel(&lg->cpus[i].hrt); /* We can free up the register page we allocated. */ free_page(lg->cpus[i].regs_page); - /* Now all the memory cleanups are done, it's safe to release - * the Launcher's memory management structure. */ + /* + * Now all the memory cleanups are done, it's safe to release + * the Launcher's memory management structure. + */ mmput(lg->cpus[i].mm); } @@ -361,8 +399,10 @@ static int close(struct inode *inode, struct file *file) eventfd_ctx_put(lg->eventfds->map[i].event); kfree(lg->eventfds); - /* If lg->dead doesn't contain an error code it will be NULL or a - * kmalloc()ed string, either of which is ok to hand to kfree(). */ + /* + * If lg->dead doesn't contain an error code it will be NULL or a + * kmalloc()ed string, either of which is ok to hand to kfree(). + */ if (!IS_ERR(lg->dead)) kfree(lg->dead); /* Free the memory allocated to the lguest_struct */ @@ -386,7 +426,8 @@ static int close(struct inode *inode, struct file *file) * * We begin our understanding with the Host kernel interface which the Launcher * uses: reading and writing a character device called /dev/lguest. All the - * work happens in the read(), write() and close() routines: */ + * work happens in the read(), write() and close() routines: + */ static struct file_operations lguest_fops = { .owner = THIS_MODULE, .release = close, @@ -394,8 +435,10 @@ static struct file_operations lguest_fops = { .read = read, }; -/* This is a textbook example of a "misc" character device. Populate a "struct - * miscdevice" and register it with misc_register(). */ +/* + * This is a textbook example of a "misc" character device. Populate a "struct + * miscdevice" and register it with misc_register(). + */ static struct miscdevice lguest_dev = { .minor = MISC_DYNAMIC_MINOR, .name = "lguest", diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c index a6fe1abda24..3da902e4b4c 100644 --- a/drivers/lguest/page_tables.c +++ b/drivers/lguest/page_tables.c @@ -1,9 +1,11 @@ -/*P:700 The pagetable code, on the other hand, still shows the scars of +/*P:700 + * The pagetable code, on the other hand, still shows the scars of * previous encounters. It's functional, and as neat as it can be in the * circumstances, but be wary, for these things are subtle and break easily. * The Guest provides a virtual to physical mapping, but we can neither trust * it nor use it: we verify and convert it here then point the CPU to the - * converted Guest pages when running the Guest. :*/ + * converted Guest pages when running the Guest. +:*/ /* Copyright (C) Rusty Russell IBM Corporation 2006. * GPL v2 and any later version */ @@ -17,10 +19,12 @@ #include #include "lg.h" -/*M:008 We hold reference to pages, which prevents them from being swapped. +/*M:008 + * We hold reference to pages, which prevents them from being swapped. * It'd be nice to have a callback in the "struct mm_struct" when Linux wants * to swap out. If we had this, and a shrinker callback to trim PTE pages, we - * could probably consider launching Guests as non-root. :*/ + * could probably consider launching Guests as non-root. +:*/ /*H:300 * The Page Table Code @@ -45,16 +49,19 @@ * (v) Flushing (throwing away) page tables, * (vi) Mapping the Switcher when the Guest is about to run, * (vii) Setting up the page tables initially. - :*/ +:*/ - -/* 1024 entries in a page table page maps 1024 pages: 4MB. The Switcher is +/* + * 1024 entries in a page table page maps 1024 pages: 4MB. The Switcher is * conveniently placed at the top 4MB, so it uses a separate, complete PTE - * page. */ + * page. + */ #define SWITCHER_PGD_INDEX (PTRS_PER_PGD - 1) -/* For PAE we need the PMD index as well. We use the last 2MB, so we - * will need the last pmd entry of the last pmd page. */ +/* + * For PAE we need the PMD index as well. We use the last 2MB, so we + * will need the last pmd entry of the last pmd page. + */ #ifdef CONFIG_X86_PAE #define SWITCHER_PMD_INDEX (PTRS_PER_PMD - 1) #define RESERVE_MEM 2U @@ -64,13 +71,16 @@ #define CHECK_GPGD_MASK _PAGE_TABLE #endif -/* We actually need a separate PTE page for each CPU. Remember that after the +/* + * We actually need a separate PTE page for each CPU. Remember that after the * Switcher code itself comes two pages for each CPU, and we don't want this - * CPU's guest to see the pages of any other CPU. */ + * CPU's guest to see the pages of any other CPU. + */ static DEFINE_PER_CPU(pte_t *, switcher_pte_pages); #define switcher_pte_page(cpu) per_cpu(switcher_pte_pages, cpu) -/*H:320 The page table code is curly enough to need helper functions to keep it +/*H:320 + * The page table code is curly enough to need helper functions to keep it * clear and clean. * * There are two functions which return pointers to the shadow (aka "real") @@ -79,7 +89,8 @@ static DEFINE_PER_CPU(pte_t *, switcher_pte_pages); * spgd_addr() takes the virtual address and returns a pointer to the top-level * page directory entry (PGD) for that address. Since we keep track of several * page tables, the "i" argument tells us which one we're interested in (it's - * usually the current one). */ + * usually the current one). + */ static pgd_t *spgd_addr(struct lg_cpu *cpu, u32 i, unsigned long vaddr) { unsigned int index = pgd_index(vaddr); @@ -96,9 +107,11 @@ static pgd_t *spgd_addr(struct lg_cpu *cpu, u32 i, unsigned long vaddr) } #ifdef CONFIG_X86_PAE -/* This routine then takes the PGD entry given above, which contains the +/* + * This routine then takes the PGD entry given above, which contains the * address of the PMD page. It then returns a pointer to the PMD entry for the - * given address. */ + * given address. + */ static pmd_t *spmd_addr(struct lg_cpu *cpu, pgd_t spgd, unsigned long vaddr) { unsigned int index = pmd_index(vaddr); @@ -119,9 +132,11 @@ static pmd_t *spmd_addr(struct lg_cpu *cpu, pgd_t spgd, unsigned long vaddr) } #endif -/* This routine then takes the page directory entry returned above, which +/* + * This routine then takes the page directory entry returned above, which * contains the address of the page table entry (PTE) page. It then returns a - * pointer to the PTE entry for the given address. */ + * pointer to the PTE entry for the given address. + */ static pte_t *spte_addr(struct lg_cpu *cpu, pgd_t spgd, unsigned long vaddr) { #ifdef CONFIG_X86_PAE @@ -139,8 +154,10 @@ static pte_t *spte_addr(struct lg_cpu *cpu, pgd_t spgd, unsigned long vaddr) return &page[pte_index(vaddr)]; } -/* These two functions just like the above two, except they access the Guest - * page tables. Hence they return a Guest address. */ +/* + * These two functions just like the above two, except they access the Guest + * page tables. Hence they return a Guest address. + */ static unsigned long gpgd_addr(struct lg_cpu *cpu, unsigned long vaddr) { unsigned int index = vaddr >> (PGDIR_SHIFT); @@ -175,17 +192,21 @@ static unsigned long gpte_addr(struct lg_cpu *cpu, #endif /*:*/ -/*M:014 get_pfn is slow: we could probably try to grab batches of pages here as - * an optimization (ie. pre-faulting). :*/ +/*M:014 + * get_pfn is slow: we could probably try to grab batches of pages here as + * an optimization (ie. pre-faulting). +:*/ -/*H:350 This routine takes a page number given by the Guest and converts it to +/*H:350 + * This routine takes a page number given by the Guest and converts it to * an actual, physical page number. It can fail for several reasons: the * virtual address might not be mapped by the Launcher, the write flag is set * and the page is read-only, or the write flag was set and the page was * shared so had to be copied, but we ran out of memory. * * This holds a reference to the page, so release_pte() is careful to put that - * back. */ + * back. + */ static unsigned long get_pfn(unsigned long virtpfn, int write) { struct page *page; @@ -198,33 +219,41 @@ static unsigned long get_pfn(unsigned long virtpfn, int write) return -1UL; } -/*H:340 Converting a Guest page table entry to a shadow (ie. real) page table +/*H:340 + * Converting a Guest page table entry to a shadow (ie. real) page table * entry can be a little tricky. The flags are (almost) the same, but the * Guest PTE contains a virtual page number: the CPU needs the real page - * number. */ + * number. + */ static pte_t gpte_to_spte(struct lg_cpu *cpu, pte_t gpte, int write) { unsigned long pfn, base, flags; - /* The Guest sets the global flag, because it thinks that it is using + /* + * The Guest sets the global flag, because it thinks that it is using * PGE. We only told it to use PGE so it would tell us whether it was * flushing a kernel mapping or a userspace mapping. We don't actually - * use the global bit, so throw it away. */ + * use the global bit, so throw it away. + */ flags = (pte_flags(gpte) & ~_PAGE_GLOBAL); /* The Guest's pages are offset inside the Launcher. */ base = (unsigned long)cpu->lg->mem_base / PAGE_SIZE; - /* We need a temporary "unsigned long" variable to hold the answer from + /* + * We need a temporary "unsigned long" variable to hold the answer from * get_pfn(), because it returns 0xFFFFFFFF on failure, which wouldn't * fit in spte.pfn. get_pfn() finds the real physical number of the - * page, given the virtual number. */ + * page, given the virtual number. + */ pfn = get_pfn(base + pte_pfn(gpte), write); if (pfn == -1UL) { kill_guest(cpu, "failed to get page %lu", pte_pfn(gpte)); - /* When we destroy the Guest, we'll go through the shadow page + /* + * When we destroy the Guest, we'll go through the shadow page * tables and release_pte() them. Make sure we don't think - * this one is valid! */ + * this one is valid! + */ flags = 0; } /* Now we assemble our shadow PTE from the page number and flags. */ @@ -234,8 +263,10 @@ static pte_t gpte_to_spte(struct lg_cpu *cpu, pte_t gpte, int write) /*H:460 And to complete the chain, release_pte() looks like this: */ static void release_pte(pte_t pte) { - /* Remember that get_user_pages_fast() took a reference to the page, in - * get_pfn()? We have to put it back now. */ + /* + * Remember that get_user_pages_fast() took a reference to the page, in + * get_pfn()? We have to put it back now. + */ if (pte_flags(pte) & _PAGE_PRESENT) put_page(pte_page(pte)); } @@ -273,7 +304,8 @@ static void check_gpmd(struct lg_cpu *cpu, pmd_t gpmd) * and return to the Guest without it knowing. * * If we fixed up the fault (ie. we mapped the address), this routine returns - * true. Otherwise, it was a real fault and we need to tell the Guest. */ + * true. Otherwise, it was a real fault and we need to tell the Guest. + */ bool demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode) { pgd_t gpgd; @@ -298,22 +330,26 @@ bool demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode) if (!(pgd_flags(*spgd) & _PAGE_PRESENT)) { /* No shadow entry: allocate a new shadow PTE page. */ unsigned long ptepage = get_zeroed_page(GFP_KERNEL); - /* This is not really the Guest's fault, but killing it is - * simple for this corner case. */ + /* + * This is not really the Guest's fault, but killing it is + * simple for this corner case. + */ if (!ptepage) { kill_guest(cpu, "out of memory allocating pte page"); return false; } /* We check that the Guest pgd is OK. */ check_gpgd(cpu, gpgd); - /* And we copy the flags to the shadow PGD entry. The page - * number in the shadow PGD is the page we just allocated. */ + /* + * And we copy the flags to the shadow PGD entry. The page + * number in the shadow PGD is the page we just allocated. + */ set_pgd(spgd, __pgd(__pa(ptepage) | pgd_flags(gpgd))); } #ifdef CONFIG_X86_PAE gpmd = lgread(cpu, gpmd_addr(gpgd, vaddr), pmd_t); - /* middle level not present? We can't map it in. */ + /* Middle level not present? We can't map it in. */ if (!(pmd_flags(gpmd) & _PAGE_PRESENT)) return false; @@ -324,8 +360,10 @@ bool demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode) /* No shadow entry: allocate a new shadow PTE page. */ unsigned long ptepage = get_zeroed_page(GFP_KERNEL); - /* This is not really the Guest's fault, but killing it is - * simple for this corner case. */ + /* + * This is not really the Guest's fault, but killing it is + * simple for this corner case. + */ if (!ptepage) { kill_guest(cpu, "out of memory allocating pte page"); return false; @@ -334,17 +372,23 @@ bool demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode) /* We check that the Guest pmd is OK. */ check_gpmd(cpu, gpmd); - /* And we copy the flags to the shadow PMD entry. The page - * number in the shadow PMD is the page we just allocated. */ + /* + * And we copy the flags to the shadow PMD entry. The page + * number in the shadow PMD is the page we just allocated. + */ native_set_pmd(spmd, __pmd(__pa(ptepage) | pmd_flags(gpmd))); } - /* OK, now we look at the lower level in the Guest page table: keep its - * address, because we might update it later. */ + /* + * OK, now we look at the lower level in the Guest page table: keep its + * address, because we might update it later. + */ gpte_ptr = gpte_addr(cpu, gpmd, vaddr); #else - /* OK, now we look at the lower level in the Guest page table: keep its - * address, because we might update it later. */ + /* + * OK, now we look at the lower level in the Guest page table: keep its + * address, because we might update it later. + */ gpte_ptr = gpte_addr(cpu, gpgd, vaddr); #endif gpte = lgread(cpu, gpte_ptr, pte_t); @@ -353,8 +397,10 @@ bool demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode) if (!(pte_flags(gpte) & _PAGE_PRESENT)) return false; - /* Check they're not trying to write to a page the Guest wants - * read-only (bit 2 of errcode == write). */ + /* + * Check they're not trying to write to a page the Guest wants + * read-only (bit 2 of errcode == write). + */ if ((errcode & 2) && !(pte_flags(gpte) & _PAGE_RW)) return false; @@ -362,8 +408,10 @@ bool demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode) if ((errcode & 4) && !(pte_flags(gpte) & _PAGE_USER)) return false; - /* Check that the Guest PTE flags are OK, and the page number is below - * the pfn_limit (ie. not mapping the Launcher binary). */ + /* + * Check that the Guest PTE flags are OK, and the page number is below + * the pfn_limit (ie. not mapping the Launcher binary). + */ check_gpte(cpu, gpte); /* Add the _PAGE_ACCESSED and (for a write) _PAGE_DIRTY flag */ @@ -373,29 +421,40 @@ bool demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode) /* Get the pointer to the shadow PTE entry we're going to set. */ spte = spte_addr(cpu, *spgd, vaddr); - /* If there was a valid shadow PTE entry here before, we release it. - * This can happen with a write to a previously read-only entry. */ + + /* + * If there was a valid shadow PTE entry here before, we release it. + * This can happen with a write to a previously read-only entry. + */ release_pte(*spte); - /* If this is a write, we insist that the Guest page is writable (the - * final arg to gpte_to_spte()). */ + /* + * If this is a write, we insist that the Guest page is writable (the + * final arg to gpte_to_spte()). + */ if (pte_dirty(gpte)) *spte = gpte_to_spte(cpu, gpte, 1); else - /* If this is a read, don't set the "writable" bit in the page + /* + * If this is a read, don't set the "writable" bit in the page * table entry, even if the Guest says it's writable. That way * we will come back here when a write does actually occur, so - * we can update the Guest's _PAGE_DIRTY flag. */ + * we can update the Guest's _PAGE_DIRTY flag. + */ native_set_pte(spte, gpte_to_spte(cpu, pte_wrprotect(gpte), 0)); - /* Finally, we write the Guest PTE entry back: we've set the - * _PAGE_ACCESSED and maybe the _PAGE_DIRTY flags. */ + /* + * Finally, we write the Guest PTE entry back: we've set the + * _PAGE_ACCESSED and maybe the _PAGE_DIRTY flags. + */ lgwrite(cpu, gpte_ptr, pte_t, gpte); - /* The fault is fixed, the page table is populated, the mapping + /* + * The fault is fixed, the page table is populated, the mapping * manipulated, the result returned and the code complete. A small * delay and a trace of alliteration are the only indications the Guest - * has that a page fault occurred at all. */ + * has that a page fault occurred at all. + */ return true; } @@ -408,7 +467,8 @@ bool demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode) * mapped, so it's overkill. * * This is a quick version which answers the question: is this virtual address - * mapped by the shadow page tables, and is it writable? */ + * mapped by the shadow page tables, and is it writable? + */ static bool page_writable(struct lg_cpu *cpu, unsigned long vaddr) { pgd_t *spgd; @@ -428,16 +488,20 @@ static bool page_writable(struct lg_cpu *cpu, unsigned long vaddr) return false; #endif - /* Check the flags on the pte entry itself: it must be present and - * writable. */ + /* + * Check the flags on the pte entry itself: it must be present and + * writable. + */ flags = pte_flags(*(spte_addr(cpu, *spgd, vaddr))); return (flags & (_PAGE_PRESENT|_PAGE_RW)) == (_PAGE_PRESENT|_PAGE_RW); } -/* So, when pin_stack_pages() asks us to pin a page, we check if it's already +/* + * So, when pin_stack_pages() asks us to pin a page, we check if it's already * in the page tables, and if not, we call demand_page() with error code 2 - * (meaning "write"). */ + * (meaning "write"). + */ void pin_page(struct lg_cpu *cpu, unsigned long vaddr) { if (!page_writable(cpu, vaddr) && !demand_page(cpu, vaddr, 2)) @@ -485,9 +549,11 @@ static void release_pgd(pgd_t *spgd) /* If the entry's not present, there's nothing to release. */ if (pgd_flags(*spgd) & _PAGE_PRESENT) { unsigned int i; - /* Converting the pfn to find the actual PTE page is easy: turn + /* + * Converting the pfn to find the actual PTE page is easy: turn * the page number into a physical address, then convert to a - * virtual address (easy for kernel pages like this one). */ + * virtual address (easy for kernel pages like this one). + */ pte_t *ptepage = __va(pgd_pfn(*spgd) << PAGE_SHIFT); /* For each entry in the page, we might need to release it. */ for (i = 0; i < PTRS_PER_PTE; i++) @@ -499,9 +565,12 @@ static void release_pgd(pgd_t *spgd) } } #endif -/*H:445 We saw flush_user_mappings() twice: once from the flush_user_mappings() + +/*H:445 + * We saw flush_user_mappings() twice: once from the flush_user_mappings() * hypercall and once in new_pgdir() when we re-used a top-level pgdir page. - * It simply releases every PTE page from 0 up to the Guest's kernel address. */ + * It simply releases every PTE page from 0 up to the Guest's kernel address. + */ static void flush_user_mappings(struct lguest *lg, int idx) { unsigned int i; @@ -510,10 +579,12 @@ static void flush_user_mappings(struct lguest *lg, int idx) release_pgd(lg->pgdirs[idx].pgdir + i); } -/*H:440 (v) Flushing (throwing away) page tables, +/*H:440 + * (v) Flushing (throwing away) page tables, * * The Guest has a hypercall to throw away the page tables: it's used when a - * large number of mappings have been changed. */ + * large number of mappings have been changed. + */ void guest_pagetable_flush_user(struct lg_cpu *cpu) { /* Drop the userspace part of the current page table. */ @@ -551,9 +622,11 @@ unsigned long guest_pa(struct lg_cpu *cpu, unsigned long vaddr) return pte_pfn(gpte) * PAGE_SIZE | (vaddr & ~PAGE_MASK); } -/* We keep several page tables. This is a simple routine to find the page +/* + * We keep several page tables. This is a simple routine to find the page * table (if any) corresponding to this top-level address the Guest has given - * us. */ + * us. + */ static unsigned int find_pgdir(struct lguest *lg, unsigned long pgtable) { unsigned int i; @@ -563,9 +636,11 @@ static unsigned int find_pgdir(struct lguest *lg, unsigned long pgtable) return i; } -/*H:435 And this is us, creating the new page directory. If we really do +/*H:435 + * And this is us, creating the new page directory. If we really do * allocate a new one (and so the kernel parts are not there), we set - * blank_pgdir. */ + * blank_pgdir. + */ static unsigned int new_pgdir(struct lg_cpu *cpu, unsigned long gpgdir, int *blank_pgdir) @@ -575,8 +650,10 @@ static unsigned int new_pgdir(struct lg_cpu *cpu, pmd_t *pmd_table; #endif - /* We pick one entry at random to throw out. Choosing the Least - * Recently Used might be better, but this is easy. */ + /* + * We pick one entry at random to throw out. Choosing the Least + * Recently Used might be better, but this is easy. + */ next = random32() % ARRAY_SIZE(cpu->lg->pgdirs); /* If it's never been allocated at all before, try now. */ if (!cpu->lg->pgdirs[next].pgdir) { @@ -587,8 +664,10 @@ static unsigned int new_pgdir(struct lg_cpu *cpu, next = cpu->cpu_pgd; else { #ifdef CONFIG_X86_PAE - /* In PAE mode, allocate a pmd page and populate the - * last pgd entry. */ + /* + * In PAE mode, allocate a pmd page and populate the + * last pgd entry. + */ pmd_table = (pmd_t *)get_zeroed_page(GFP_KERNEL); if (!pmd_table) { free_page((long)cpu->lg->pgdirs[next].pgdir); @@ -598,8 +677,10 @@ static unsigned int new_pgdir(struct lg_cpu *cpu, set_pgd(cpu->lg->pgdirs[next].pgdir + SWITCHER_PGD_INDEX, __pgd(__pa(pmd_table) | _PAGE_PRESENT)); - /* This is a blank page, so there are no kernel - * mappings: caller must map the stack! */ + /* + * This is a blank page, so there are no kernel + * mappings: caller must map the stack! + */ *blank_pgdir = 1; } #else @@ -615,19 +696,23 @@ static unsigned int new_pgdir(struct lg_cpu *cpu, return next; } -/*H:430 (iv) Switching page tables +/*H:430 + * (iv) Switching page tables * * Now we've seen all the page table setting and manipulation, let's see * what happens when the Guest changes page tables (ie. changes the top-level - * pgdir). This occurs on almost every context switch. */ + * pgdir). This occurs on almost every context switch. + */ void guest_new_pagetable(struct lg_cpu *cpu, unsigned long pgtable) { int newpgdir, repin = 0; /* Look to see if we have this one already. */ newpgdir = find_pgdir(cpu->lg, pgtable); - /* If not, we allocate or mug an existing one: if it's a fresh one, - * repin gets set to 1. */ + /* + * If not, we allocate or mug an existing one: if it's a fresh one, + * repin gets set to 1. + */ if (newpgdir == ARRAY_SIZE(cpu->lg->pgdirs)) newpgdir = new_pgdir(cpu, pgtable, &repin); /* Change the current pgd index to the new one. */ @@ -637,9 +722,11 @@ void guest_new_pagetable(struct lg_cpu *cpu, unsigned long pgtable) pin_stack_pages(cpu); } -/*H:470 Finally, a routine which throws away everything: all PGD entries in all +/*H:470 + * Finally, a routine which throws away everything: all PGD entries in all * the shadow page tables, including the Guest's kernel mappings. This is used - * when we destroy the Guest. */ + * when we destroy the Guest. + */ static void release_all_pagetables(struct lguest *lg) { unsigned int i, j; @@ -656,8 +743,10 @@ static void release_all_pagetables(struct lguest *lg) spgd = lg->pgdirs[i].pgdir + SWITCHER_PGD_INDEX; pmdpage = __va(pgd_pfn(*spgd) << PAGE_SHIFT); - /* And release the pmd entries of that pmd page, - * except for the switcher pmd. */ + /* + * And release the pmd entries of that pmd page, + * except for the switcher pmd. + */ for (k = 0; k < SWITCHER_PMD_INDEX; k++) release_pmd(&pmdpage[k]); #endif @@ -667,10 +756,12 @@ static void release_all_pagetables(struct lguest *lg) } } -/* We also throw away everything when a Guest tells us it's changed a kernel +/* + * We also throw away everything when a Guest tells us it's changed a kernel * mapping. Since kernel mappings are in every page table, it's easiest to * throw them all away. This traps the Guest in amber for a while as - * everything faults back in, but it's rare. */ + * everything faults back in, but it's rare. + */ void guest_pagetable_clear_all(struct lg_cpu *cpu) { release_all_pagetables(cpu->lg); @@ -678,15 +769,19 @@ void guest_pagetable_clear_all(struct lg_cpu *cpu) pin_stack_pages(cpu); } /*:*/ -/*M:009 Since we throw away all mappings when a kernel mapping changes, our + +/*M:009 + * Since we throw away all mappings when a kernel mapping changes, our * performance sucks for guests using highmem. In fact, a guest with * PAGE_OFFSET 0xc0000000 (the default) and more than about 700MB of RAM is * usually slower than a Guest with less memory. * * This, of course, cannot be fixed. It would take some kind of... well, I - * don't know, but the term "puissant code-fu" comes to mind. :*/ + * don't know, but the term "puissant code-fu" comes to mind. +:*/ -/*H:420 This is the routine which actually sets the page table entry for then +/*H:420 + * This is the routine which actually sets the page table entry for then * "idx"'th shadow page table. * * Normally, we can just throw out the old entry and replace it with 0: if they @@ -715,31 +810,36 @@ static void do_set_pte(struct lg_cpu *cpu, int idx, spmd = spmd_addr(cpu, *spgd, vaddr); if (pmd_flags(*spmd) & _PAGE_PRESENT) { #endif - /* Otherwise, we start by releasing - * the existing entry. */ + /* Otherwise, start by releasing the existing entry. */ pte_t *spte = spte_addr(cpu, *spgd, vaddr); release_pte(*spte); - /* If they're setting this entry as dirty or accessed, - * we might as well put that entry they've given us - * in now. This shaves 10% off a - * copy-on-write micro-benchmark. */ + /* + * If they're setting this entry as dirty or accessed, + * we might as well put that entry they've given us in + * now. This shaves 10% off a copy-on-write + * micro-benchmark. + */ if (pte_flags(gpte) & (_PAGE_DIRTY | _PAGE_ACCESSED)) { check_gpte(cpu, gpte); native_set_pte(spte, gpte_to_spte(cpu, gpte, pte_flags(gpte) & _PAGE_DIRTY)); - } else - /* Otherwise kill it and we can demand_page() - * it in later. */ + } else { + /* + * Otherwise kill it and we can demand_page() + * it in later. + */ native_set_pte(spte, __pte(0)); + } #ifdef CONFIG_X86_PAE } #endif } } -/*H:410 Updating a PTE entry is a little trickier. +/*H:410 + * Updating a PTE entry is a little trickier. * * We keep track of several different page tables (the Guest uses one for each * process, so it makes sense to cache at least a few). Each of these have @@ -748,12 +848,15 @@ static void do_set_pte(struct lg_cpu *cpu, int idx, * all the page tables, not just the current one. This is rare. * * The benefit is that when we have to track a new page table, we can keep all - * the kernel mappings. This speeds up context switch immensely. */ + * the kernel mappings. This speeds up context switch immensely. + */ void guest_set_pte(struct lg_cpu *cpu, unsigned long gpgdir, unsigned long vaddr, pte_t gpte) { - /* Kernel mappings must be changed on all top levels. Slow, but doesn't - * happen often. */ + /* + * Kernel mappings must be changed on all top levels. Slow, but doesn't + * happen often. + */ if (vaddr >= cpu->lg->kernel_address) { unsigned int i; for (i = 0; i < ARRAY_SIZE(cpu->lg->pgdirs); i++) @@ -802,12 +905,14 @@ void guest_set_pmd(struct lguest *lg, unsigned long pmdp, u32 idx) } #endif -/* Once we know how much memory we have we can construct simple identity - * (which set virtual == physical) and linear mappings - * which will get the Guest far enough into the boot to create its own. +/* + * Once we know how much memory we have we can construct simple identity (which + * set virtual == physical) and linear mappings which will get the Guest far + * enough into the boot to create its own. * * We lay them out of the way, just below the initrd (which is why we need to - * know its size here). */ + * know its size here). + */ static unsigned long setup_pagetables(struct lguest *lg, unsigned long mem, unsigned long initrd_size) @@ -825,8 +930,10 @@ static unsigned long setup_pagetables(struct lguest *lg, unsigned int phys_linear; #endif - /* We have mapped_pages frames to map, so we need - * linear_pages page tables to map them. */ + /* + * We have mapped_pages frames to map, so we need linear_pages page + * tables to map them. + */ mapped_pages = mem / PAGE_SIZE; linear_pages = (mapped_pages + PTRS_PER_PTE - 1) / PTRS_PER_PTE; @@ -839,8 +946,10 @@ static unsigned long setup_pagetables(struct lguest *lg, #ifdef CONFIG_X86_PAE pmds = (void *)linear - PAGE_SIZE; #endif - /* Linear mapping is easy: put every page's address into the - * mapping in order. */ + /* + * Linear mapping is easy: put every page's address into the + * mapping in order. + */ for (i = 0; i < mapped_pages; i++) { pte_t pte; pte = pfn_pte(i, __pgprot(_PAGE_PRESENT|_PAGE_RW|_PAGE_USER)); @@ -848,8 +957,10 @@ static unsigned long setup_pagetables(struct lguest *lg, return -EFAULT; } - /* The top level points to the linear page table pages above. - * We setup the identity and linear mappings here. */ + /* + * The top level points to the linear page table pages above. + * We setup the identity and linear mappings here. + */ #ifdef CONFIG_X86_PAE for (i = j = 0; i < mapped_pages && j < PTRS_PER_PMD; i += PTRS_PER_PTE, j++) { @@ -880,15 +991,19 @@ static unsigned long setup_pagetables(struct lguest *lg, } #endif - /* We return the top level (guest-physical) address: remember where - * this is. */ + /* + * We return the top level (guest-physical) address: remember where + * this is. + */ return (unsigned long)pgdir - mem_base; } -/*H:500 (vii) Setting up the page tables initially. +/*H:500 + * (vii) Setting up the page tables initially. * * When a Guest is first created, the Launcher tells us where the toplevel of - * its first page table is. We set some things up here: */ + * its first page table is. We set some things up here: + */ int init_guest_pagetable(struct lguest *lg) { u64 mem; @@ -898,14 +1013,18 @@ int init_guest_pagetable(struct lguest *lg) pgd_t *pgd; pmd_t *pmd_table; #endif - /* Get the Guest memory size and the ramdisk size from the boot header - * located at lg->mem_base (Guest address 0). */ + /* + * Get the Guest memory size and the ramdisk size from the boot header + * located at lg->mem_base (Guest address 0). + */ if (copy_from_user(&mem, &boot->e820_map[0].size, sizeof(mem)) || get_user(initrd_size, &boot->hdr.ramdisk_size)) return -EFAULT; - /* We start on the first shadow page table, and give it a blank PGD - * page. */ + /* + * We start on the first shadow page table, and give it a blank PGD + * page. + */ lg->pgdirs[0].gpgdir = setup_pagetables(lg, mem, initrd_size); if (IS_ERR_VALUE(lg->pgdirs[0].gpgdir)) return lg->pgdirs[0].gpgdir; @@ -931,17 +1050,21 @@ void page_table_guest_data_init(struct lg_cpu *cpu) /* We get the kernel address: above this is all kernel memory. */ if (get_user(cpu->lg->kernel_address, &cpu->lg->lguest_data->kernel_address) - /* We tell the Guest that it can't use the top 2 or 4 MB - * of virtual addresses used by the Switcher. */ + /* + * We tell the Guest that it can't use the top 2 or 4 MB + * of virtual addresses used by the Switcher. + */ || put_user(RESERVE_MEM * 1024 * 1024, &cpu->lg->lguest_data->reserve_mem) || put_user(cpu->lg->pgdirs[0].gpgdir, &cpu->lg->lguest_data->pgdir)) kill_guest(cpu, "bad guest page %p", cpu->lg->lguest_data); - /* In flush_user_mappings() we loop from 0 to + /* + * In flush_user_mappings() we loop from 0 to * "pgd_index(lg->kernel_address)". This assumes it won't hit the - * Switcher mappings, so check that now. */ + * Switcher mappings, so check that now. + */ #ifdef CONFIG_X86_PAE if (pgd_index(cpu->lg->kernel_address) == SWITCHER_PGD_INDEX && pmd_index(cpu->lg->kernel_address) == SWITCHER_PMD_INDEX) @@ -964,12 +1087,14 @@ void free_guest_pagetable(struct lguest *lg) free_page((long)lg->pgdirs[i].pgdir); } -/*H:480 (vi) Mapping the Switcher when the Guest is about to run. +/*H:480 + * (vi) Mapping the Switcher when the Guest is about to run. * * The Switcher and the two pages for this CPU need to be visible in the * Guest (and not the pages for other CPUs). We have the appropriate PTE pages * for each CPU already set up, we just need to hook them in now we know which - * Guest is about to run on this CPU. */ + * Guest is about to run on this CPU. + */ void map_switcher_in_guest(struct lg_cpu *cpu, struct lguest_pages *pages) { pte_t *switcher_pte_page = __get_cpu_var(switcher_pte_pages); @@ -990,20 +1115,24 @@ void map_switcher_in_guest(struct lg_cpu *cpu, struct lguest_pages *pages) #else pgd_t switcher_pgd; - /* Make the last PGD entry for this Guest point to the Switcher's PTE - * page for this CPU (with appropriate flags). */ + /* + * Make the last PGD entry for this Guest point to the Switcher's PTE + * page for this CPU (with appropriate flags). + */ switcher_pgd = __pgd(__pa(switcher_pte_page) | __PAGE_KERNEL_EXEC); cpu->lg->pgdirs[cpu->cpu_pgd].pgdir[SWITCHER_PGD_INDEX] = switcher_pgd; #endif - /* We also change the Switcher PTE page. When we're running the Guest, + /* + * We also change the Switcher PTE page. When we're running the Guest, * we want the Guest's "regs" page to appear where the first Switcher * page for this CPU is. This is an optimization: when the Switcher * saves the Guest registers, it saves them into the first page of this * CPU's "struct lguest_pages": if we make sure the Guest's register * page is already mapped there, we don't have to copy them out - * again. */ + * again. + */ pfn = __pa(cpu->regs_page) >> PAGE_SHIFT; native_set_pte(®s_pte, pfn_pte(pfn, PAGE_KERNEL)); native_set_pte(&switcher_pte_page[pte_index((unsigned long)pages)], @@ -1019,10 +1148,12 @@ static void free_switcher_pte_pages(void) free_page((long)switcher_pte_page(i)); } -/*H:520 Setting up the Switcher PTE page for given CPU is fairly easy, given +/*H:520 + * Setting up the Switcher PTE page for given CPU is fairly easy, given * the CPU number and the "struct page"s for the Switcher code itself. * - * Currently the Switcher is less than a page long, so "pages" is always 1. */ + * Currently the Switcher is less than a page long, so "pages" is always 1. + */ static __init void populate_switcher_pte_page(unsigned int cpu, struct page *switcher_page[], unsigned int pages) @@ -1043,13 +1174,16 @@ static __init void populate_switcher_pte_page(unsigned int cpu, native_set_pte(&pte[i], pfn_pte(page_to_pfn(switcher_page[i]), __pgprot(_PAGE_PRESENT|_PAGE_ACCESSED|_PAGE_RW))); - /* The second page contains the "struct lguest_ro_state", and is - * read-only. */ + /* + * The second page contains the "struct lguest_ro_state", and is + * read-only. + */ native_set_pte(&pte[i+1], pfn_pte(page_to_pfn(switcher_page[i+1]), __pgprot(_PAGE_PRESENT|_PAGE_ACCESSED))); } -/* We've made it through the page table code. Perhaps our tired brains are +/* + * We've made it through the page table code. Perhaps our tired brains are * still processing the details, or perhaps we're simply glad it's over. * * If nothing else, note that all this complexity in juggling shadow page tables @@ -1058,10 +1192,13 @@ static __init void populate_switcher_pte_page(unsigned int cpu, * uses exotic direct Guest pagetable manipulation, and why both Intel and AMD * have implemented shadow page table support directly into hardware. * - * There is just one file remaining in the Host. */ + * There is just one file remaining in the Host. + */ -/*H:510 At boot or module load time, init_pagetables() allocates and populates - * the Switcher PTE page for each CPU. */ +/*H:510 + * At boot or module load time, init_pagetables() allocates and populates + * the Switcher PTE page for each CPU. + */ __init int init_pagetables(struct page **switcher_page, unsigned int pages) { unsigned int i; diff --git a/drivers/lguest/segments.c b/drivers/lguest/segments.c index 482ed5a1875..951c57b0a7e 100644 --- a/drivers/lguest/segments.c +++ b/drivers/lguest/segments.c @@ -1,4 +1,5 @@ -/*P:600 The x86 architecture has segments, which involve a table of descriptors +/*P:600 + * The x86 architecture has segments, which involve a table of descriptors * which can be used to do funky things with virtual address interpretation. * We originally used to use segments so the Guest couldn't alter the * Guest<->Host Switcher, and then we had to trim Guest segments, and restore @@ -8,7 +9,8 @@ * * In these modern times, the segment handling code consists of simple sanity * checks, and the worst you'll experience reading this code is butterfly-rash - * from frolicking through its parklike serenity. :*/ + * from frolicking through its parklike serenity. +:*/ #include "lg.h" /*H:600 @@ -41,10 +43,12 @@ * begin. */ -/* There are several entries we don't let the Guest set. The TSS entry is the +/* + * There are several entries we don't let the Guest set. The TSS entry is the * "Task State Segment" which controls all kinds of delicate things. The * LGUEST_CS and LGUEST_DS entries are reserved for the Switcher, and the - * the Guest can't be trusted to deal with double faults. */ + * the Guest can't be trusted to deal with double faults. + */ static bool ignored_gdt(unsigned int num) { return (num == GDT_ENTRY_TSS @@ -53,42 +57,52 @@ static bool ignored_gdt(unsigned int num) || num == GDT_ENTRY_DOUBLEFAULT_TSS); } -/*H:630 Once the Guest gave us new GDT entries, we fix them up a little. We +/*H:630 + * Once the Guest gave us new GDT entries, we fix them up a little. We * don't care if they're invalid: the worst that can happen is a General * Protection Fault in the Switcher when it restores a Guest segment register * which tries to use that entry. Then we kill the Guest for causing such a - * mess: the message will be "unhandled trap 256". */ + * mess: the message will be "unhandled trap 256". + */ static void fixup_gdt_table(struct lg_cpu *cpu, unsigned start, unsigned end) { unsigned int i; for (i = start; i < end; i++) { - /* We never copy these ones to real GDT, so we don't care what - * they say */ + /* + * We never copy these ones to real GDT, so we don't care what + * they say + */ if (ignored_gdt(i)) continue; - /* Segment descriptors contain a privilege level: the Guest is + /* + * Segment descriptors contain a privilege level: the Guest is * sometimes careless and leaves this as 0, even though it's - * running at privilege level 1. If so, we fix it here. */ + * running at privilege level 1. If so, we fix it here. + */ if ((cpu->arch.gdt[i].b & 0x00006000) == 0) cpu->arch.gdt[i].b |= (GUEST_PL << 13); - /* Each descriptor has an "accessed" bit. If we don't set it + /* + * Each descriptor has an "accessed" bit. If we don't set it * now, the CPU will try to set it when the Guest first loads * that entry into a segment register. But the GDT isn't - * writable by the Guest, so bad things can happen. */ + * writable by the Guest, so bad things can happen. + */ cpu->arch.gdt[i].b |= 0x00000100; } } -/*H:610 Like the IDT, we never simply use the GDT the Guest gives us. We keep +/*H:610 + * Like the IDT, we never simply use the GDT the Guest gives us. We keep * a GDT for each CPU, and copy across the Guest's entries each time we want to * run the Guest on that CPU. * * This routine is called at boot or modprobe time for each CPU to set up the * constant GDT entries: the ones which are the same no matter what Guest we're - * running. */ + * running. + */ void setup_default_gdt_entries(struct lguest_ro_state *state) { struct desc_struct *gdt = state->guest_gdt; @@ -98,30 +112,37 @@ void setup_default_gdt_entries(struct lguest_ro_state *state) gdt[GDT_ENTRY_LGUEST_CS] = FULL_EXEC_SEGMENT; gdt[GDT_ENTRY_LGUEST_DS] = FULL_SEGMENT; - /* The TSS segment refers to the TSS entry for this particular CPU. + /* + * The TSS segment refers to the TSS entry for this particular CPU. * Forgive the magic flags: the 0x8900 means the entry is Present, it's * privilege level 0 Available 386 TSS system segment, and the 0x67 - * means Saturn is eclipsed by Mercury in the twelfth house. */ + * means Saturn is eclipsed by Mercury in the twelfth house. + */ gdt[GDT_ENTRY_TSS].a = 0x00000067 | (tss << 16); gdt[GDT_ENTRY_TSS].b = 0x00008900 | (tss & 0xFF000000) | ((tss >> 16) & 0x000000FF); } -/* This routine sets up the initial Guest GDT for booting. All entries start - * as 0 (unusable). */ +/* + * This routine sets up the initial Guest GDT for booting. All entries start + * as 0 (unusable). + */ void setup_guest_gdt(struct lg_cpu *cpu) { - /* Start with full 0-4G segments... */ + /* + * Start with full 0-4G segments...except the Guest is allowed to use + * them, so set the privilege level appropriately in the flags. + */ cpu->arch.gdt[GDT_ENTRY_KERNEL_CS] = FULL_EXEC_SEGMENT; cpu->arch.gdt[GDT_ENTRY_KERNEL_DS] = FULL_SEGMENT; - /* ...except the Guest is allowed to use them, so set the privilege - * level appropriately in the flags. */ cpu->arch.gdt[GDT_ENTRY_KERNEL_CS].b |= (GUEST_PL << 13); cpu->arch.gdt[GDT_ENTRY_KERNEL_DS].b |= (GUEST_PL << 13); } -/*H:650 An optimization of copy_gdt(), for just the three "thead-local storage" - * entries. */ +/*H:650 + * An optimization of copy_gdt(), for just the three "thead-local storage" + * entries. + */ void copy_gdt_tls(const struct lg_cpu *cpu, struct desc_struct *gdt) { unsigned int i; @@ -130,26 +151,34 @@ void copy_gdt_tls(const struct lg_cpu *cpu, struct desc_struct *gdt) gdt[i] = cpu->arch.gdt[i]; } -/*H:640 When the Guest is run on a different CPU, or the GDT entries have - * changed, copy_gdt() is called to copy the Guest's GDT entries across to this - * CPU's GDT. */ +/*H:640 + * When the Guest is run on a different CPU, or the GDT entries have changed, + * copy_gdt() is called to copy the Guest's GDT entries across to this CPU's + * GDT. + */ void copy_gdt(const struct lg_cpu *cpu, struct desc_struct *gdt) { unsigned int i; - /* The default entries from setup_default_gdt_entries() are not - * replaced. See ignored_gdt() above. */ + /* + * The default entries from setup_default_gdt_entries() are not + * replaced. See ignored_gdt() above. + */ for (i = 0; i < GDT_ENTRIES; i++) if (!ignored_gdt(i)) gdt[i] = cpu->arch.gdt[i]; } -/*H:620 This is where the Guest asks us to load a new GDT entry - * (LHCALL_LOAD_GDT_ENTRY). We tweak the entry and copy it in. */ +/*H:620 + * This is where the Guest asks us to load a new GDT entry + * (LHCALL_LOAD_GDT_ENTRY). We tweak the entry and copy it in. + */ void load_guest_gdt_entry(struct lg_cpu *cpu, u32 num, u32 lo, u32 hi) { - /* We assume the Guest has the same number of GDT entries as the - * Host, otherwise we'd have to dynamically allocate the Guest GDT. */ + /* + * We assume the Guest has the same number of GDT entries as the + * Host, otherwise we'd have to dynamically allocate the Guest GDT. + */ if (num >= ARRAY_SIZE(cpu->arch.gdt)) kill_guest(cpu, "too many gdt entries %i", num); @@ -157,15 +186,19 @@ void load_guest_gdt_entry(struct lg_cpu *cpu, u32 num, u32 lo, u32 hi) cpu->arch.gdt[num].a = lo; cpu->arch.gdt[num].b = hi; fixup_gdt_table(cpu, num, num+1); - /* Mark that the GDT changed so the core knows it has to copy it again, - * even if the Guest is run on the same CPU. */ + /* + * Mark that the GDT changed so the core knows it has to copy it again, + * even if the Guest is run on the same CPU. + */ cpu->changed |= CHANGED_GDT; } -/* This is the fast-track version for just changing the three TLS entries. +/* + * This is the fast-track version for just changing the three TLS entries. * Remember that this happens on every context switch, so it's worth * optimizing. But wouldn't it be neater to have a single hypercall to cover - * both cases? */ + * both cases? + */ void guest_load_tls(struct lg_cpu *cpu, unsigned long gtls) { struct desc_struct *tls = &cpu->arch.gdt[GDT_ENTRY_TLS_MIN]; @@ -175,7 +208,6 @@ void guest_load_tls(struct lg_cpu *cpu, unsigned long gtls) /* Note that just the TLS entries have changed. */ cpu->changed |= CHANGED_GDT_TLS; } -/*:*/ /*H:660 * With this, we have finished the Host. diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c index eaf722fe309..96f7d88ec7f 100644 --- a/drivers/lguest/x86/core.c +++ b/drivers/lguest/x86/core.c @@ -17,13 +17,15 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ -/*P:450 This file contains the x86-specific lguest code. It used to be all +/*P:450 + * This file contains the x86-specific lguest code. It used to be all * mixed in with drivers/lguest/core.c but several foolhardy code slashers * wrestled most of the dependencies out to here in preparation for porting * lguest to other architectures (see what I mean by foolhardy?). * * This also contains a couple of non-obvious setup and teardown pieces which - * were implemented after days of debugging pain. :*/ + * were implemented after days of debugging pain. +:*/ #include #include #include @@ -82,25 +84,33 @@ static DEFINE_PER_CPU(struct lg_cpu *, last_cpu); */ static void copy_in_guest_info(struct lg_cpu *cpu, struct lguest_pages *pages) { - /* Copying all this data can be quite expensive. We usually run the + /* + * Copying all this data can be quite expensive. We usually run the * same Guest we ran last time (and that Guest hasn't run anywhere else * meanwhile). If that's not the case, we pretend everything in the - * Guest has changed. */ + * Guest has changed. + */ if (__get_cpu_var(last_cpu) != cpu || cpu->last_pages != pages) { __get_cpu_var(last_cpu) = cpu; cpu->last_pages = pages; cpu->changed = CHANGED_ALL; } - /* These copies are pretty cheap, so we do them unconditionally: */ - /* Save the current Host top-level page directory. */ + /* + * These copies are pretty cheap, so we do them unconditionally: */ + /* Save the current Host top-level page directory. + */ pages->state.host_cr3 = __pa(current->mm->pgd); - /* Set up the Guest's page tables to see this CPU's pages (and no - * other CPU's pages). */ + /* + * Set up the Guest's page tables to see this CPU's pages (and no + * other CPU's pages). + */ map_switcher_in_guest(cpu, pages); - /* Set up the two "TSS" members which tell the CPU what stack to use + /* + * Set up the two "TSS" members which tell the CPU what stack to use * for traps which do directly into the Guest (ie. traps at privilege - * level 1). */ + * level 1). + */ pages->state.guest_tss.sp1 = cpu->esp1; pages->state.guest_tss.ss1 = cpu->ss1; @@ -125,40 +135,53 @@ static void run_guest_once(struct lg_cpu *cpu, struct lguest_pages *pages) /* This is a dummy value we need for GCC's sake. */ unsigned int clobber; - /* Copy the guest-specific information into this CPU's "struct - * lguest_pages". */ + /* + * Copy the guest-specific information into this CPU's "struct + * lguest_pages". + */ copy_in_guest_info(cpu, pages); - /* Set the trap number to 256 (impossible value). If we fault while + /* + * Set the trap number to 256 (impossible value). If we fault while * switching to the Guest (bad segment registers or bug), this will - * cause us to abort the Guest. */ + * cause us to abort the Guest. + */ cpu->regs->trapnum = 256; - /* Now: we push the "eflags" register on the stack, then do an "lcall". + /* + * Now: we push the "eflags" register on the stack, then do an "lcall". * This is how we change from using the kernel code segment to using * the dedicated lguest code segment, as well as jumping into the * Switcher. * * The lcall also pushes the old code segment (KERNEL_CS) onto the * stack, then the address of this call. This stack layout happens to - * exactly match the stack layout created by an interrupt... */ + * exactly match the stack layout created by an interrupt... + */ asm volatile("pushf; lcall *lguest_entry" - /* This is how we tell GCC that %eax ("a") and %ebx ("b") - * are changed by this routine. The "=" means output. */ + /* + * This is how we tell GCC that %eax ("a") and %ebx ("b") + * are changed by this routine. The "=" means output. + */ : "=a"(clobber), "=b"(clobber) - /* %eax contains the pages pointer. ("0" refers to the + /* + * %eax contains the pages pointer. ("0" refers to the * 0-th argument above, ie "a"). %ebx contains the * physical address of the Guest's top-level page - * directory. */ + * directory. + */ : "0"(pages), "1"(__pa(cpu->lg->pgdirs[cpu->cpu_pgd].pgdir)) - /* We tell gcc that all these registers could change, + /* + * We tell gcc that all these registers could change, * which means we don't have to save and restore them in - * the Switcher. */ + * the Switcher. + */ : "memory", "%edx", "%ecx", "%edi", "%esi"); } /*:*/ -/*M:002 There are hooks in the scheduler which we can register to tell when we +/*M:002 + * There are hooks in the scheduler which we can register to tell when we * get kicked off the CPU (preempt_notifier_register()). This would allow us * to lazily disable SYSENTER which would regain some performance, and should * also simplify copy_in_guest_info(). Note that we'd still need to restore @@ -166,56 +189,72 @@ static void run_guest_once(struct lg_cpu *cpu, struct lguest_pages *pages) * * We could also try using this hooks for PGE, but that might be too expensive. * - * The hooks were designed for KVM, but we can also put them to good use. :*/ + * The hooks were designed for KVM, but we can also put them to good use. +:*/ -/*H:040 This is the i386-specific code to setup and run the Guest. Interrupts - * are disabled: we own the CPU. */ +/*H:040 + * This is the i386-specific code to setup and run the Guest. Interrupts + * are disabled: we own the CPU. + */ void lguest_arch_run_guest(struct lg_cpu *cpu) { - /* Remember the awfully-named TS bit? If the Guest has asked to set it + /* + * Remember the awfully-named TS bit? If the Guest has asked to set it * we set it now, so we can trap and pass that trap to the Guest if it - * uses the FPU. */ + * uses the FPU. + */ if (cpu->ts) unlazy_fpu(current); - /* SYSENTER is an optimized way of doing system calls. We can't allow + /* + * SYSENTER is an optimized way of doing system calls. We can't allow * it because it always jumps to privilege level 0. A normal Guest * won't try it because we don't advertise it in CPUID, but a malicious * Guest (or malicious Guest userspace program) could, so we tell the - * CPU to disable it before running the Guest. */ + * CPU to disable it before running the Guest. + */ if (boot_cpu_has(X86_FEATURE_SEP)) wrmsr(MSR_IA32_SYSENTER_CS, 0, 0); - /* Now we actually run the Guest. It will return when something + /* + * Now we actually run the Guest. It will return when something * interesting happens, and we can examine its registers to see what it - * was doing. */ + * was doing. + */ run_guest_once(cpu, lguest_pages(raw_smp_processor_id())); - /* Note that the "regs" structure contains two extra entries which are + /* + * Note that the "regs" structure contains two extra entries which are * not really registers: a trap number which says what interrupt or * trap made the switcher code come back, and an error code which some - * traps set. */ + * traps set. + */ /* Restore SYSENTER if it's supposed to be on. */ if (boot_cpu_has(X86_FEATURE_SEP)) wrmsr(MSR_IA32_SYSENTER_CS, __KERNEL_CS, 0); - /* If the Guest page faulted, then the cr2 register will tell us the + /* + * If the Guest page faulted, then the cr2 register will tell us the * bad virtual address. We have to grab this now, because once we * re-enable interrupts an interrupt could fault and thus overwrite - * cr2, or we could even move off to a different CPU. */ + * cr2, or we could even move off to a different CPU. + */ if (cpu->regs->trapnum == 14) cpu->arch.last_pagefault = read_cr2(); - /* Similarly, if we took a trap because the Guest used the FPU, + /* + * Similarly, if we took a trap because the Guest used the FPU, * we have to restore the FPU it expects to see. * math_state_restore() may sleep and we may even move off to * a different CPU. So all the critical stuff should be done - * before this. */ + * before this. + */ else if (cpu->regs->trapnum == 7) math_state_restore(); } -/*H:130 Now we've examined the hypercall code; our Guest can make requests. +/*H:130 + * Now we've examined the hypercall code; our Guest can make requests. * Our Guest is usually so well behaved; it never tries to do things it isn't * allowed to, and uses hypercalls instead. Unfortunately, Linux's paravirtual * infrastructure isn't quite complete, because it doesn't contain replacements @@ -225,26 +264,33 @@ void lguest_arch_run_guest(struct lg_cpu *cpu) * * When the Guest uses one of these instructions, we get a trap (General * Protection Fault) and come here. We see if it's one of those troublesome - * instructions and skip over it. We return true if we did. */ + * instructions and skip over it. We return true if we did. + */ static int emulate_insn(struct lg_cpu *cpu) { u8 insn; unsigned int insnlen = 0, in = 0, shift = 0; - /* The eip contains the *virtual* address of the Guest's instruction: - * guest_pa just subtracts the Guest's page_offset. */ + /* + * The eip contains the *virtual* address of the Guest's instruction: + * guest_pa just subtracts the Guest's page_offset. + */ unsigned long physaddr = guest_pa(cpu, cpu->regs->eip); - /* This must be the Guest kernel trying to do something, not userspace! + /* + * This must be the Guest kernel trying to do something, not userspace! * The bottom two bits of the CS segment register are the privilege - * level. */ + * level. + */ if ((cpu->regs->cs & 3) != GUEST_PL) return 0; /* Decoding x86 instructions is icky. */ insn = lgread(cpu, physaddr, u8); - /* 0x66 is an "operand prefix". It means it's using the upper 16 bits - of the eax register. */ + /* + * 0x66 is an "operand prefix". It means it's using the upper 16 bits + * of the eax register. + */ if (insn == 0x66) { shift = 16; /* The instruction is 1 byte so far, read the next byte. */ @@ -252,8 +298,10 @@ static int emulate_insn(struct lg_cpu *cpu) insn = lgread(cpu, physaddr + insnlen, u8); } - /* We can ignore the lower bit for the moment and decode the 4 opcodes - * we need to emulate. */ + /* + * We can ignore the lower bit for the moment and decode the 4 opcodes + * we need to emulate. + */ switch (insn & 0xFE) { case 0xE4: /* in ,%al */ insnlen += 2; @@ -274,9 +322,11 @@ static int emulate_insn(struct lg_cpu *cpu) return 0; } - /* If it was an "IN" instruction, they expect the result to be read + /* + * If it was an "IN" instruction, they expect the result to be read * into %eax, so we change %eax. We always return all-ones, which - * traditionally means "there's nothing there". */ + * traditionally means "there's nothing there". + */ if (in) { /* Lower bit tells is whether it's a 16 or 32 bit access */ if (insn & 0x1) @@ -290,7 +340,8 @@ static int emulate_insn(struct lg_cpu *cpu) return 1; } -/* Our hypercalls mechanism used to be based on direct software interrupts. +/* + * Our hypercalls mechanism used to be based on direct software interrupts. * After Anthony's "Refactor hypercall infrastructure" kvm patch, we decided to * change over to using kvm hypercalls. * @@ -318,16 +369,20 @@ static int emulate_insn(struct lg_cpu *cpu) */ static void rewrite_hypercall(struct lg_cpu *cpu) { - /* This are the opcodes we use to patch the Guest. The opcode for "int + /* + * This are the opcodes we use to patch the Guest. The opcode for "int * $0x1f" is "0xcd 0x1f" but vmcall instruction is 3 bytes long, so we - * complete the sequence with a NOP (0x90). */ + * complete the sequence with a NOP (0x90). + */ u8 insn[3] = {0xcd, 0x1f, 0x90}; __lgwrite(cpu, guest_pa(cpu, cpu->regs->eip), insn, sizeof(insn)); - /* The above write might have caused a copy of that page to be made + /* + * The above write might have caused a copy of that page to be made * (if it was read-only). We need to make sure the Guest has * up-to-date pagetables. As this doesn't happen often, we can just - * drop them all. */ + * drop them all. + */ guest_pagetable_clear_all(cpu); } @@ -335,9 +390,11 @@ static bool is_hypercall(struct lg_cpu *cpu) { u8 insn[3]; - /* This must be the Guest kernel trying to do something. + /* + * This must be the Guest kernel trying to do something. * The bottom two bits of the CS segment register are the privilege - * level. */ + * level. + */ if ((cpu->regs->cs & 3) != GUEST_PL) return false; @@ -351,86 +408,105 @@ void lguest_arch_handle_trap(struct lg_cpu *cpu) { switch (cpu->regs->trapnum) { case 13: /* We've intercepted a General Protection Fault. */ - /* Check if this was one of those annoying IN or OUT + /* + * Check if this was one of those annoying IN or OUT * instructions which we need to emulate. If so, we just go - * back into the Guest after we've done it. */ + * back into the Guest after we've done it. + */ if (cpu->regs->errcode == 0) { if (emulate_insn(cpu)) return; } - /* If KVM is active, the vmcall instruction triggers a - * General Protection Fault. Normally it triggers an - * invalid opcode fault (6): */ + /* + * If KVM is active, the vmcall instruction triggers a General + * Protection Fault. Normally it triggers an invalid opcode + * fault (6): + */ case 6: - /* We need to check if ring == GUEST_PL and - * faulting instruction == vmcall. */ + /* + * We need to check if ring == GUEST_PL and faulting + * instruction == vmcall. + */ if (is_hypercall(cpu)) { rewrite_hypercall(cpu); return; } break; case 14: /* We've intercepted a Page Fault. */ - /* The Guest accessed a virtual address that wasn't mapped. + /* + * The Guest accessed a virtual address that wasn't mapped. * This happens a lot: we don't actually set up most of the page * tables for the Guest at all when we start: as it runs it asks * for more and more, and we set them up as required. In this * case, we don't even tell the Guest that the fault happened. * * The errcode tells whether this was a read or a write, and - * whether kernel or userspace code. */ + * whether kernel or userspace code. + */ if (demand_page(cpu, cpu->arch.last_pagefault, cpu->regs->errcode)) return; - /* OK, it's really not there (or not OK): the Guest needs to + /* + * OK, it's really not there (or not OK): the Guest needs to * know. We write out the cr2 value so it knows where the * fault occurred. * * Note that if the Guest were really messed up, this could * happen before it's done the LHCALL_LGUEST_INIT hypercall, so - * lg->lguest_data could be NULL */ + * lg->lguest_data could be NULL + */ if (cpu->lg->lguest_data && put_user(cpu->arch.last_pagefault, &cpu->lg->lguest_data->cr2)) kill_guest(cpu, "Writing cr2"); break; case 7: /* We've intercepted a Device Not Available fault. */ - /* If the Guest doesn't want to know, we already restored the - * Floating Point Unit, so we just continue without telling - * it. */ + /* + * If the Guest doesn't want to know, we already restored the + * Floating Point Unit, so we just continue without telling it. + */ if (!cpu->ts) return; break; case 32 ... 255: - /* These values mean a real interrupt occurred, in which case + /* + * These values mean a real interrupt occurred, in which case * the Host handler has already been run. We just do a * friendly check if another process should now be run, then - * return to run the Guest again */ + * return to run the Guest again + */ cond_resched(); return; case LGUEST_TRAP_ENTRY: - /* Our 'struct hcall_args' maps directly over our regs: we set - * up the pointer now to indicate a hypercall is pending. */ + /* + * Our 'struct hcall_args' maps directly over our regs: we set + * up the pointer now to indicate a hypercall is pending. + */ cpu->hcall = (struct hcall_args *)cpu->regs; return; } /* We didn't handle the trap, so it needs to go to the Guest. */ if (!deliver_trap(cpu, cpu->regs->trapnum)) - /* If the Guest doesn't have a handler (either it hasn't + /* + * If the Guest doesn't have a handler (either it hasn't * registered any yet, or it's one of the faults we don't let - * it handle), it dies with this cryptic error message. */ + * it handle), it dies with this cryptic error message. + */ kill_guest(cpu, "unhandled trap %li at %#lx (%#lx)", cpu->regs->trapnum, cpu->regs->eip, cpu->regs->trapnum == 14 ? cpu->arch.last_pagefault : cpu->regs->errcode); } -/* Now we can look at each of the routines this calls, in increasing order of +/* + * Now we can look at each of the routines this calls, in increasing order of * complexity: do_hypercalls(), emulate_insn(), maybe_do_interrupt(), * deliver_trap() and demand_page(). After all those, we'll be ready to * examine the Switcher, and our philosophical understanding of the Host/Guest - * duality will be complete. :*/ + * duality will be complete. +:*/ static void adjust_pge(void *on) { if (on) @@ -439,13 +515,16 @@ static void adjust_pge(void *on) write_cr4(read_cr4() & ~X86_CR4_PGE); } -/*H:020 Now the Switcher is mapped and every thing else is ready, we need to do - * some more i386-specific initialization. */ +/*H:020 + * Now the Switcher is mapped and every thing else is ready, we need to do + * some more i386-specific initialization. + */ void __init lguest_arch_host_init(void) { int i; - /* Most of the i386/switcher.S doesn't care that it's been moved; on + /* + * Most of the i386/switcher.S doesn't care that it's been moved; on * Intel, jumps are relative, and it doesn't access any references to * external code or data. * @@ -453,7 +532,8 @@ void __init lguest_arch_host_init(void) * addresses are placed in a table (default_idt_entries), so we need to * update the table with the new addresses. switcher_offset() is a * convenience function which returns the distance between the - * compiled-in switcher code and the high-mapped copy we just made. */ + * compiled-in switcher code and the high-mapped copy we just made. + */ for (i = 0; i < IDT_ENTRIES; i++) default_idt_entries[i] += switcher_offset(); @@ -468,63 +548,81 @@ void __init lguest_arch_host_init(void) for_each_possible_cpu(i) { /* lguest_pages() returns this CPU's two pages. */ struct lguest_pages *pages = lguest_pages(i); - /* This is a convenience pointer to make the code fit one - * statement to a line. */ + /* This is a convenience pointer to make the code neater. */ struct lguest_ro_state *state = &pages->state; - /* The Global Descriptor Table: the Host has a different one + /* + * The Global Descriptor Table: the Host has a different one * for each CPU. We keep a descriptor for the GDT which says * where it is and how big it is (the size is actually the last - * byte, not the size, hence the "-1"). */ + * byte, not the size, hence the "-1"). + */ state->host_gdt_desc.size = GDT_SIZE-1; state->host_gdt_desc.address = (long)get_cpu_gdt_table(i); - /* All CPUs on the Host use the same Interrupt Descriptor + /* + * All CPUs on the Host use the same Interrupt Descriptor * Table, so we just use store_idt(), which gets this CPU's IDT - * descriptor. */ + * descriptor. + */ store_idt(&state->host_idt_desc); - /* The descriptors for the Guest's GDT and IDT can be filled + /* + * The descriptors for the Guest's GDT and IDT can be filled * out now, too. We copy the GDT & IDT into ->guest_gdt and - * ->guest_idt before actually running the Guest. */ + * ->guest_idt before actually running the Guest. + */ state->guest_idt_desc.size = sizeof(state->guest_idt)-1; state->guest_idt_desc.address = (long)&state->guest_idt; state->guest_gdt_desc.size = sizeof(state->guest_gdt)-1; state->guest_gdt_desc.address = (long)&state->guest_gdt; - /* We know where we want the stack to be when the Guest enters + /* + * We know where we want the stack to be when the Guest enters * the Switcher: in pages->regs. The stack grows upwards, so - * we start it at the end of that structure. */ + * we start it at the end of that structure. + */ state->guest_tss.sp0 = (long)(&pages->regs + 1); - /* And this is the GDT entry to use for the stack: we keep a - * couple of special LGUEST entries. */ + /* + * And this is the GDT entry to use for the stack: we keep a + * couple of special LGUEST entries. + */ state->guest_tss.ss0 = LGUEST_DS; - /* x86 can have a finegrained bitmap which indicates what I/O + /* + * x86 can have a finegrained bitmap which indicates what I/O * ports the process can use. We set it to the end of our - * structure, meaning "none". */ + * structure, meaning "none". + */ state->guest_tss.io_bitmap_base = sizeof(state->guest_tss); - /* Some GDT entries are the same across all Guests, so we can - * set them up now. */ + /* + * Some GDT entries are the same across all Guests, so we can + * set them up now. + */ setup_default_gdt_entries(state); /* Most IDT entries are the same for all Guests, too.*/ setup_default_idt_entries(state, default_idt_entries); - /* The Host needs to be able to use the LGUEST segments on this - * CPU, too, so put them in the Host GDT. */ + /* + * The Host needs to be able to use the LGUEST segments on this + * CPU, too, so put them in the Host GDT. + */ get_cpu_gdt_table(i)[GDT_ENTRY_LGUEST_CS] = FULL_EXEC_SEGMENT; get_cpu_gdt_table(i)[GDT_ENTRY_LGUEST_DS] = FULL_SEGMENT; } - /* In the Switcher, we want the %cs segment register to use the + /* + * In the Switcher, we want the %cs segment register to use the * LGUEST_CS GDT entry: we've put that in the Host and Guest GDTs, so * it will be undisturbed when we switch. To change %cs and jump we - * need this structure to feed to Intel's "lcall" instruction. */ + * need this structure to feed to Intel's "lcall" instruction. + */ lguest_entry.offset = (long)switch_to_guest + switcher_offset(); lguest_entry.segment = LGUEST_CS; - /* Finally, we need to turn off "Page Global Enable". PGE is an + /* + * Finally, we need to turn off "Page Global Enable". PGE is an * optimization where page table entries are specially marked to show * they never change. The Host kernel marks all the kernel pages this * way because it's always present, even when userspace is running. @@ -534,16 +632,21 @@ void __init lguest_arch_host_init(void) * you'll get really weird bugs that you'll chase for two days. * * I used to turn PGE off every time we switched to the Guest and back - * on when we return, but that slowed the Switcher down noticibly. */ + * on when we return, but that slowed the Switcher down noticibly. + */ - /* We don't need the complexity of CPUs coming and going while we're - * doing this. */ + /* + * We don't need the complexity of CPUs coming and going while we're + * doing this. + */ get_online_cpus(); if (cpu_has_pge) { /* We have a broader idea of "global". */ /* Remember that this was originally set (for cleanup). */ cpu_had_pge = 1; - /* adjust_pge is a helper function which sets or unsets the PGE - * bit on its CPU, depending on the argument (0 == unset). */ + /* + * adjust_pge is a helper function which sets or unsets the PGE + * bit on its CPU, depending on the argument (0 == unset). + */ on_each_cpu(adjust_pge, (void *)0, 1); /* Turn off the feature in the global feature set. */ clear_cpu_cap(&boot_cpu_data, X86_FEATURE_PGE); @@ -590,26 +693,32 @@ int lguest_arch_init_hypercalls(struct lg_cpu *cpu) { u32 tsc_speed; - /* The pointer to the Guest's "struct lguest_data" is the only argument. - * We check that address now. */ + /* + * The pointer to the Guest's "struct lguest_data" is the only argument. + * We check that address now. + */ if (!lguest_address_ok(cpu->lg, cpu->hcall->arg1, sizeof(*cpu->lg->lguest_data))) return -EFAULT; - /* Having checked it, we simply set lg->lguest_data to point straight + /* + * Having checked it, we simply set lg->lguest_data to point straight * into the Launcher's memory at the right place and then use * copy_to_user/from_user from now on, instead of lgread/write. I put * this in to show that I'm not immune to writing stupid - * optimizations. */ + * optimizations. + */ cpu->lg->lguest_data = cpu->lg->mem_base + cpu->hcall->arg1; - /* We insist that the Time Stamp Counter exist and doesn't change with + /* + * We insist that the Time Stamp Counter exist and doesn't change with * cpu frequency. Some devious chip manufacturers decided that TSC * changes could be handled in software. I decided that time going * backwards might be good for benchmarks, but it's bad for users. * * We also insist that the TSC be stable: the kernel detects unreliable - * TSCs for its own purposes, and we use that here. */ + * TSCs for its own purposes, and we use that here. + */ if (boot_cpu_has(X86_FEATURE_CONSTANT_TSC) && !check_tsc_unstable()) tsc_speed = tsc_khz; else @@ -625,38 +734,47 @@ int lguest_arch_init_hypercalls(struct lg_cpu *cpu) } /*:*/ -/*L:030 lguest_arch_setup_regs() +/*L:030 + * lguest_arch_setup_regs() * * Most of the Guest's registers are left alone: we used get_zeroed_page() to - * allocate the structure, so they will be 0. */ + * allocate the structure, so they will be 0. + */ void lguest_arch_setup_regs(struct lg_cpu *cpu, unsigned long start) { struct lguest_regs *regs = cpu->regs; - /* There are four "segment" registers which the Guest needs to boot: + /* + * There are four "segment" registers which the Guest needs to boot: * The "code segment" register (cs) refers to the kernel code segment * __KERNEL_CS, and the "data", "extra" and "stack" segment registers * refer to the kernel data segment __KERNEL_DS. * * The privilege level is packed into the lower bits. The Guest runs - * at privilege level 1 (GUEST_PL).*/ + * at privilege level 1 (GUEST_PL). + */ regs->ds = regs->es = regs->ss = __KERNEL_DS|GUEST_PL; regs->cs = __KERNEL_CS|GUEST_PL; - /* The "eflags" register contains miscellaneous flags. Bit 1 (0x002) + /* + * The "eflags" register contains miscellaneous flags. Bit 1 (0x002) * is supposed to always be "1". Bit 9 (0x200) controls whether * interrupts are enabled. We always leave interrupts enabled while - * running the Guest. */ + * running the Guest. + */ regs->eflags = X86_EFLAGS_IF | 0x2; - /* The "Extended Instruction Pointer" register says where the Guest is - * running. */ + /* + * The "Extended Instruction Pointer" register says where the Guest is + * running. + */ regs->eip = start; - /* %esi points to our boot information, at physical address 0, so don't - * touch it. */ + /* + * %esi points to our boot information, at physical address 0, so don't + * touch it. + */ - /* There are a couple of GDT entries the Guest expects when first - * booting. */ + /* There are a couple of GDT entries the Guest expects at boot. */ setup_guest_gdt(cpu); } diff --git a/drivers/lguest/x86/switcher_32.S b/drivers/lguest/x86/switcher_32.S index 3fc15318a80..6dec0979383 100644 --- a/drivers/lguest/x86/switcher_32.S +++ b/drivers/lguest/x86/switcher_32.S @@ -1,12 +1,15 @@ -/*P:900 This is the Switcher: code which sits at 0xFFC00000 astride both the +/*P:900 + * This is the Switcher: code which sits at 0xFFC00000 astride both the * Host and Guest to do the low-level Guest<->Host switch. It is as simple as * it can be made, but it's naturally very specific to x86. * * You have now completed Preparation. If this has whet your appetite; if you * are feeling invigorated and refreshed then the next, more challenging stage - * can be found in "make Guest". :*/ + * can be found in "make Guest". + :*/ -/*M:012 Lguest is meant to be simple: my rule of thumb is that 1% more LOC must +/*M:012 + * Lguest is meant to be simple: my rule of thumb is that 1% more LOC must * gain at least 1% more performance. Since neither LOC nor performance can be * measured beforehand, it generally means implementing a feature then deciding * if it's worth it. And once it's implemented, who can say no? @@ -31,11 +34,14 @@ * Host (which is actually really easy). * * Two questions remain. Would the performance gain outweigh the complexity? - * And who would write the verse documenting it? :*/ + * And who would write the verse documenting it? +:*/ -/*M:011 Lguest64 handles NMI. This gave me NMI envy (until I looked at their +/*M:011 + * Lguest64 handles NMI. This gave me NMI envy (until I looked at their * code). It's worth doing though, since it would let us use oprofile in the - * Host when a Guest is running. :*/ + * Host when a Guest is running. +:*/ /*S:100 * Welcome to the Switcher itself! diff --git a/include/linux/lguest.h b/include/linux/lguest.h index dbf2479e808..0a3a11afd64 100644 --- a/include/linux/lguest.h +++ b/include/linux/lguest.h @@ -1,5 +1,7 @@ -/* Things the lguest guest needs to know. Note: like all lguest interfaces, - * this is subject to wild and random change between versions. */ +/* + * Things the lguest guest needs to know. Note: like all lguest interfaces, + * this is subject to wild and random change between versions. + */ #ifndef _LINUX_LGUEST_H #define _LINUX_LGUEST_H @@ -11,32 +13,42 @@ #define LG_CLOCK_MIN_DELTA 100UL #define LG_CLOCK_MAX_DELTA ULONG_MAX -/*G:031 The second method of communicating with the Host is to via "struct +/*G:031 + * The second method of communicating with the Host is to via "struct * lguest_data". Once the Guest's initialization hypercall tells the Host where - * this is, the Guest and Host both publish information in it. :*/ + * this is, the Guest and Host both publish information in it. +:*/ struct lguest_data { - /* 512 == enabled (same as eflags in normal hardware). The Guest - * changes interrupts so often that a hypercall is too slow. */ + /* + * 512 == enabled (same as eflags in normal hardware). The Guest + * changes interrupts so often that a hypercall is too slow. + */ unsigned int irq_enabled; /* Fine-grained interrupt disabling by the Guest */ DECLARE_BITMAP(blocked_interrupts, LGUEST_IRQS); - /* The Host writes the virtual address of the last page fault here, + /* + * The Host writes the virtual address of the last page fault here, * which saves the Guest a hypercall. CR2 is the native register where - * this address would normally be found. */ + * this address would normally be found. + */ unsigned long cr2; /* Wallclock time set by the Host. */ struct timespec time; - /* Interrupt pending set by the Host. The Guest should do a hypercall - * if it re-enables interrupts and sees this set (to X86_EFLAGS_IF). */ + /* + * Interrupt pending set by the Host. The Guest should do a hypercall + * if it re-enables interrupts and sees this set (to X86_EFLAGS_IF). + */ int irq_pending; - /* Async hypercall ring. Instead of directly making hypercalls, we can + /* + * Async hypercall ring. Instead of directly making hypercalls, we can * place them in here for processing the next time the Host wants. - * This batching can be quite efficient. */ + * This batching can be quite efficient. + */ /* 0xFF == done (set by Host), 0 == pending (set by Guest). */ u8 hcall_status[LHCALL_RING_SIZE]; diff --git a/include/linux/lguest_launcher.h b/include/linux/lguest_launcher.h index bfefbdf7498..495203ff221 100644 --- a/include/linux/lguest_launcher.h +++ b/include/linux/lguest_launcher.h @@ -29,8 +29,10 @@ struct lguest_device_desc { __u8 type; /* The number of virtqueues (first in config array) */ __u8 num_vq; - /* The number of bytes of feature bits. Multiply by 2: one for host - * features and one for Guest acknowledgements. */ + /* + * The number of bytes of feature bits. Multiply by 2: one for host + * features and one for Guest acknowledgements. + */ __u8 feature_len; /* The number of bytes of the config array after virtqueues. */ __u8 config_len; @@ -39,8 +41,10 @@ struct lguest_device_desc { __u8 config[0]; }; -/*D:135 This is how we expect the device configuration field for a virtqueue - * to be laid out in config space. */ +/*D:135 + * This is how we expect the device configuration field for a virtqueue + * to be laid out in config space. + */ struct lguest_vqconfig { /* The number of entries in the virtio_ring */ __u16 num; @@ -61,7 +65,9 @@ enum lguest_req LHREQ_EVENTFD, /* + address, fd. */ }; -/* The alignment to use between consumer and producer parts of vring. - * x86 pagesize for historical reasons. */ +/* + * The alignment to use between consumer and producer parts of vring. + * x86 pagesize for historical reasons. + */ #define LGUEST_VRING_ALIGN 4096 #endif /* _LINUX_LGUEST_LAUNCHER */ -- cgit v1.2.3 From a91d74a3c4de8115295ee87350c13a329164aaaf Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Thu, 30 Jul 2009 16:03:45 -0600 Subject: lguest: update commentry Every so often, after code shuffles, I need to go through and unbitrot the Lguest Journey (see drivers/lguest/README). Since we now use RCU in a simple form in one place I took the opportunity to expand that explanation. Signed-off-by: Rusty Russell Cc: Ingo Molnar Cc: Paul McKenney --- Documentation/lguest/lguest.c | 184 +++++++++++++++++++++++++++--------- arch/x86/include/asm/lguest_hcall.h | 8 +- arch/x86/lguest/boot.c | 99 ++++++++++++++----- arch/x86/lguest/i386_head.S | 2 + drivers/lguest/core.c | 7 +- drivers/lguest/hypercalls.c | 6 +- drivers/lguest/lguest_device.c | 11 ++- drivers/lguest/lguest_user.c | 100 ++++++++++++++++++-- drivers/lguest/page_tables.c | 84 ++++++++++++---- drivers/lguest/x86/core.c | 2 +- drivers/lguest/x86/switcher_32.S | 6 +- 11 files changed, 398 insertions(+), 111 deletions(-) diff --git a/Documentation/lguest/lguest.c b/Documentation/lguest/lguest.c index aa66a52b73e..45163651b51 100644 --- a/Documentation/lguest/lguest.c +++ b/Documentation/lguest/lguest.c @@ -49,7 +49,7 @@ #include "linux/virtio_ring.h" #include "asm/bootparam.h" /*L:110 - * We can ignore the 39 include files we need for this program, but I do want + * We can ignore the 42 include files we need for this program, but I do want * to draw attention to the use of kernel-style types. * * As Linus said, "C is a Spartan language, and so should your naming be." I @@ -305,6 +305,11 @@ static void *map_zeroed_pages(unsigned int num) PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE, fd, 0); if (addr == MAP_FAILED) err(1, "Mmaping %u pages of /dev/zero", num); + + /* + * One neat mmap feature is that you can close the fd, and it + * stays mapped. + */ close(fd); return addr; @@ -557,7 +562,7 @@ static void tell_kernel(unsigned long start) } /*:*/ -/* +/*L:200 * Device Handling. * * When the Guest gives us a buffer, it sends an array of addresses and sizes. @@ -608,7 +613,10 @@ static unsigned next_desc(struct vring_desc *desc, return next; } -/* This actually sends the interrupt for this virtqueue */ +/* + * This actually sends the interrupt for this virtqueue, if we've used a + * buffer. + */ static void trigger_irq(struct virtqueue *vq) { unsigned long buf[] = { LHREQ_IRQ, vq->config.irq }; @@ -629,12 +637,12 @@ static void trigger_irq(struct virtqueue *vq) } /* - * This looks in the virtqueue and for the first available buffer, and converts + * This looks in the virtqueue for the first available buffer, and converts * it to an iovec for convenient access. Since descriptors consist of some * number of output then some number of input descriptors, it's actually two * iovecs, but we pack them into one and note how many of each there were. * - * This function returns the descriptor number found. + * This function waits if necessary, and returns the descriptor number found. */ static unsigned wait_for_vq_desc(struct virtqueue *vq, struct iovec iov[], @@ -644,10 +652,14 @@ static unsigned wait_for_vq_desc(struct virtqueue *vq, struct vring_desc *desc; u16 last_avail = lg_last_avail(vq); + /* There's nothing available? */ while (last_avail == vq->vring.avail->idx) { u64 event; - /* OK, tell Guest about progress up to now. */ + /* + * Since we're about to sleep, now is a good time to tell the + * Guest about what we've used up to now. + */ trigger_irq(vq); /* OK, now we need to know about added descriptors. */ @@ -734,8 +746,9 @@ static unsigned wait_for_vq_desc(struct virtqueue *vq, } /* - * After we've used one of their buffers, we tell them about it. We'll then - * want to send them an interrupt, using trigger_irq(). + * After we've used one of their buffers, we tell the Guest about it. Sometime + * later we'll want to send them an interrupt using trigger_irq(); note that + * wait_for_vq_desc() does that for us if it has to wait. */ static void add_used(struct virtqueue *vq, unsigned int head, int len) { @@ -782,12 +795,12 @@ static void console_input(struct virtqueue *vq) struct console_abort *abort = vq->dev->priv; struct iovec iov[vq->vring.num]; - /* Make sure there's a descriptor waiting. */ + /* Make sure there's a descriptor available. */ head = wait_for_vq_desc(vq, iov, &out_num, &in_num); if (out_num) errx(1, "Output buffers in console in queue?"); - /* Read it in. */ + /* Read into it. This is where we usually wait. */ len = readv(STDIN_FILENO, iov, in_num); if (len <= 0) { /* Ran out of input? */ @@ -800,6 +813,7 @@ static void console_input(struct virtqueue *vq) pause(); } + /* Tell the Guest we used a buffer. */ add_used_and_trigger(vq, head, len); /* @@ -834,15 +848,23 @@ static void console_output(struct virtqueue *vq) unsigned int head, out, in; struct iovec iov[vq->vring.num]; + /* We usually wait in here, for the Guest to give us something. */ head = wait_for_vq_desc(vq, iov, &out, &in); if (in) errx(1, "Input buffers in console output queue?"); + + /* writev can return a partial write, so we loop here. */ while (!iov_empty(iov, out)) { int len = writev(STDOUT_FILENO, iov, out); if (len <= 0) err(1, "Write to stdout gave %i", len); iov_consume(iov, out, len); } + + /* + * We're finished with that buffer: if we're going to sleep, + * wait_for_vq_desc() will prod the Guest with an interrupt. + */ add_used(vq, head, 0); } @@ -862,15 +884,30 @@ static void net_output(struct virtqueue *vq) unsigned int head, out, in; struct iovec iov[vq->vring.num]; + /* We usually wait in here for the Guest to give us a packet. */ head = wait_for_vq_desc(vq, iov, &out, &in); if (in) errx(1, "Input buffers in net output queue?"); + /* + * Send the whole thing through to /dev/net/tun. It expects the exact + * same format: what a coincidence! + */ if (writev(net_info->tunfd, iov, out) < 0) errx(1, "Write to tun failed?"); + + /* + * Done with that one; wait_for_vq_desc() will send the interrupt if + * all packets are processed. + */ add_used(vq, head, 0); } -/* Will reading from this file descriptor block? */ +/* + * Handling network input is a bit trickier, because I've tried to optimize it. + * + * First we have a helper routine which tells is if from this file descriptor + * (ie. the /dev/net/tun device) will block: + */ static bool will_block(int fd) { fd_set fdset; @@ -880,7 +917,11 @@ static bool will_block(int fd) return select(fd+1, &fdset, NULL, NULL, &zero) != 1; } -/* This handles packets coming in from the tun device to our Guest. */ +/* + * This handles packets coming in from the tun device to our Guest. Like all + * service routines, it gets called again as soon as it returns, so you don't + * see a while(1) loop here. + */ static void net_input(struct virtqueue *vq) { int len; @@ -888,21 +929,38 @@ static void net_input(struct virtqueue *vq) struct iovec iov[vq->vring.num]; struct net_info *net_info = vq->dev->priv; + /* + * Get a descriptor to write an incoming packet into. This will also + * send an interrupt if they're out of descriptors. + */ head = wait_for_vq_desc(vq, iov, &out, &in); if (out) errx(1, "Output buffers in net input queue?"); - /* Deliver interrupt now, since we're about to sleep. */ + /* + * If it looks like we'll block reading from the tun device, send them + * an interrupt. + */ if (vq->pending_used && will_block(net_info->tunfd)) trigger_irq(vq); + /* + * Read in the packet. This is where we normally wait (when there's no + * incoming network traffic). + */ len = readv(net_info->tunfd, iov, in); if (len <= 0) err(1, "Failed to read from tun."); + + /* + * Mark that packet buffer as used, but don't interrupt here. We want + * to wait until we've done as much work as we can. + */ add_used(vq, head, len); } +/*:*/ -/* This is the helper to create threads. */ +/* This is the helper to create threads: run the service routine in a loop. */ static int do_thread(void *_vq) { struct virtqueue *vq = _vq; @@ -950,11 +1008,14 @@ static void reset_device(struct device *dev) signal(SIGCHLD, (void *)kill_launcher); } +/*L:216 + * This actually creates the thread which services the virtqueue for a device. + */ static void create_thread(struct virtqueue *vq) { /* - * Create stack for thread and run it. Since the stack grows upwards, - * we point the stack pointer to the end of this region. + * Create stack for thread. Since the stack grows upwards, we point + * the stack pointer to the end of this region. */ char *stack = malloc(32768); unsigned long args[] = { LHREQ_EVENTFD, @@ -966,17 +1027,22 @@ static void create_thread(struct virtqueue *vq) err(1, "Creating eventfd"); args[2] = vq->eventfd; - /* Attach an eventfd to this virtqueue: it will go off - * when the Guest does an LHCALL_NOTIFY for this vq. */ + /* + * Attach an eventfd to this virtqueue: it will go off when the Guest + * does an LHCALL_NOTIFY for this vq. + */ if (write(lguest_fd, &args, sizeof(args)) != 0) err(1, "Attaching eventfd"); - /* CLONE_VM: because it has to access the Guest memory, and - * SIGCHLD so we get a signal if it dies. */ + /* + * CLONE_VM: because it has to access the Guest memory, and SIGCHLD so + * we get a signal if it dies. + */ vq->thread = clone(do_thread, stack + 32768, CLONE_VM | SIGCHLD, vq); if (vq->thread == (pid_t)-1) err(1, "Creating clone"); - /* We close our local copy, now the child has it. */ + + /* We close our local copy now the child has it. */ close(vq->eventfd); } @@ -1028,7 +1094,10 @@ static void update_device_status(struct device *dev) } } -/* This is the generic routine we call when the Guest uses LHCALL_NOTIFY. */ +/*L:215 + * This is the generic routine we call when the Guest uses LHCALL_NOTIFY. In + * particular, it's used to notify us of device status changes during boot. + */ static void handle_output(unsigned long addr) { struct device *i; @@ -1037,18 +1106,32 @@ static void handle_output(unsigned long addr) for (i = devices.dev; i; i = i->next) { struct virtqueue *vq; - /* Notifications to device descriptors update device status. */ + /* + * Notifications to device descriptors mean they updated the + * device status. + */ if (from_guest_phys(addr) == i->desc) { update_device_status(i); return; } - /* Devices *can* be used before status is set to DRIVER_OK. */ + /* + * Devices *can* be used before status is set to DRIVER_OK. + * The original plan was that they would never do this: they + * would always finish setting up their status bits before + * actually touching the virtqueues. In practice, we allowed + * them to, and they do (eg. the disk probes for partition + * tables as part of initialization). + * + * If we see this, we start the device: once it's running, we + * expect the device to catch all the notifications. + */ for (vq = i->vq; vq; vq = vq->next) { if (addr != vq->config.pfn*getpagesize()) continue; if (i->running) errx(1, "Notification on running %s", i->name); + /* This just calls create_thread() for each virtqueue */ start_device(i); return; } @@ -1132,6 +1215,11 @@ static void add_virtqueue(struct device *dev, unsigned int num_descs, vq->next = NULL; vq->last_avail_idx = 0; vq->dev = dev; + + /* + * This is the routine the service thread will run, and its Process ID + * once it's running. + */ vq->service = service; vq->thread = (pid_t)-1; @@ -1202,7 +1290,8 @@ static void set_config(struct device *dev, unsigned len, const void *conf) /* * This routine does all the creation and setup of a new device, including - * calling new_dev_desc() to allocate the descriptor and device memory. + * calling new_dev_desc() to allocate the descriptor and device memory. We + * don't actually start the service threads until later. * * See what I mean about userspace being boring? */ @@ -1478,19 +1567,7 @@ static void setup_tun_net(char *arg) verbose("device %u: tun %s: %s\n", devices.device_num, tapif, arg); } - -/* - * Our block (disk) device should be really simple: the Guest asks for a block - * number and we read or write that position in the file. Unfortunately, that - * was amazingly slow: the Guest waits until the read is finished before - * running anything else, even if it could have been doing useful work. - * - * We could use async I/O, except it's reputed to suck so hard that characters - * actually go missing from your code when you try to use it. - * - * So this was one reason why lguest now does all virtqueue servicing in - * separate threads: it's more efficient and more like a real device. - */ +/*:*/ /* This hangs off device->priv. */ struct vblk_info @@ -1512,8 +1589,16 @@ struct vblk_info /*L:210 * The Disk * - * Remember that the block device is handled by a separate I/O thread. We head - * straight into the core of that thread here: + * The disk only has one virtqueue, so it only has one thread. It is really + * simple: the Guest asks for a block number and we read or write that position + * in the file. + * + * Before we serviced each virtqueue in a separate thread, that was unacceptably + * slow: the Guest waits until the read is finished before running anything + * else, even if it could have been doing useful work. + * + * We could have used async I/O, except it's reputed to suck so hard that + * characters actually go missing from your code when you try to use it. */ static void blk_request(struct virtqueue *vq) { @@ -1525,7 +1610,10 @@ static void blk_request(struct virtqueue *vq) struct iovec iov[vq->vring.num]; off64_t off; - /* Get the next request. */ + /* + * Get the next request, where we normally wait. It triggers the + * interrupt to acknowledge previously serviced requests (if any). + */ head = wait_for_vq_desc(vq, iov, &out_num, &in_num); /* @@ -1539,6 +1627,10 @@ static void blk_request(struct virtqueue *vq) out = convert(&iov[0], struct virtio_blk_outhdr); in = convert(&iov[out_num+in_num-1], u8); + /* + * For historical reasons, block operations are expressed in 512 byte + * "sectors". + */ off = out->sector * 512; /* @@ -1614,6 +1706,7 @@ static void blk_request(struct virtqueue *vq) if (out->type & VIRTIO_BLK_T_BARRIER) fdatasync(vblk->fd); + /* Finished that request. */ add_used(vq, head, wlen); } @@ -1682,9 +1775,8 @@ static void rng_input(struct virtqueue *vq) errx(1, "Output buffers in rng?"); /* - * This is why we convert to iovecs: the readv() call uses them, and so - * it reads straight into the Guest's buffer. We loop to make sure we - * fill it. + * Just like the console write, we loop to cover the whole iovec. + * In this case, short reads actually happen quite a bit. */ while (!iov_empty(iov, in_num)) { len = readv(rng_info->rfd, iov, in_num); @@ -1818,7 +1910,9 @@ int main(int argc, char *argv[]) devices.lastdev = NULL; devices.next_irq = 1; + /* We're CPU 0. In fact, that's the only CPU possible right now. */ cpu_id = 0; + /* * We need to know how much memory so we can set up the device * descriptor and memory pages for the devices as we parse the command @@ -1926,7 +2020,7 @@ int main(int argc, char *argv[]) */ tell_kernel(start); - /* Ensure that we terminate if a child dies. */ + /* Ensure that we terminate if a device-servicing child dies. */ signal(SIGCHLD, kill_launcher); /* If we exit via err(), this kills all the threads, restores tty. */ diff --git a/arch/x86/include/asm/lguest_hcall.h b/arch/x86/include/asm/lguest_hcall.h index cceb73e12e5..ba0eed8aa1a 100644 --- a/arch/x86/include/asm/lguest_hcall.h +++ b/arch/x86/include/asm/lguest_hcall.h @@ -35,10 +35,10 @@ * operations? There are two ways: the direct way is to make a "hypercall", * to make requests of the Host Itself. * - * We use the KVM hypercall mechanism. Seventeen hypercalls are - * available: the hypercall number is put in the %eax register, and the - * arguments (when required) are placed in %ebx, %ecx, %edx and %esi. - * If a return value makes sense, it's returned in %eax. + * We use the KVM hypercall mechanism, though completely different hypercall + * numbers. Seventeen hypercalls are available: the hypercall number is put in + * the %eax register, and the arguments (when required) are placed in %ebx, + * %ecx, %edx and %esi. If a return value makes sense, it's returned in %eax. * * Grossly invalid calls result in Sudden Death at the hands of the vengeful * Host, rather than returning failure. This reflects Winston Churchill's diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c index 025c04d18f2..d677fa9ca65 100644 --- a/arch/x86/lguest/boot.c +++ b/arch/x86/lguest/boot.c @@ -154,6 +154,7 @@ static void lazy_hcall1(unsigned long call, async_hcall(call, arg1, 0, 0, 0); } +/* You can imagine what lazy_hcall2, 3 and 4 look like. :*/ static void lazy_hcall2(unsigned long call, unsigned long arg1, unsigned long arg2) @@ -189,8 +190,10 @@ static void lazy_hcall4(unsigned long call, } #endif -/* When lazy mode is turned off reset the per-cpu lazy mode variable and then - * issue the do-nothing hypercall to flush any stored calls. */ +/*G:036 + * When lazy mode is turned off reset the per-cpu lazy mode variable and then + * issue the do-nothing hypercall to flush any stored calls. +:*/ static void lguest_leave_lazy_mmu_mode(void) { kvm_hypercall0(LHCALL_FLUSH_ASYNC); @@ -250,13 +253,11 @@ extern void lg_irq_enable(void); extern void lg_restore_fl(unsigned long flags); /*M:003 - * Note that we don't check for outstanding interrupts when we re-enable them - * (or when we unmask an interrupt). This seems to work for the moment, since - * interrupts are rare and we'll just get the interrupt on the next timer tick, - * but now we can run with CONFIG_NO_HZ, we should revisit this. One way would - * be to put the "irq_enabled" field in a page by itself, and have the Host - * write-protect it when an interrupt comes in when irqs are disabled. There - * will then be a page fault as soon as interrupts are re-enabled. + * We could be more efficient in our checking of outstanding interrupts, rather + * than using a branch. One way would be to put the "irq_enabled" field in a + * page by itself, and have the Host write-protect it when an interrupt comes + * in when irqs are disabled. There will then be a page fault as soon as + * interrupts are re-enabled. * * A better method is to implement soft interrupt disable generally for x86: * instead of disabling interrupts, we set a flag. If an interrupt does come @@ -568,7 +569,7 @@ static void lguest_write_cr4(unsigned long val) * cr3 ---> +---------+ * | --------->+---------+ * | | | PADDR1 | - * Top-level | | PADDR2 | + * Mid-level | | PADDR2 | * (PMD) page | | | * | | Lower-level | * | | (PTE) page | @@ -588,23 +589,62 @@ static void lguest_write_cr4(unsigned long val) * Index into top Index into second Offset within page * page directory page pagetable page * - * The kernel spends a lot of time changing both the top-level page directory - * and lower-level pagetable pages. The Guest doesn't know physical addresses, - * so while it maintains these page tables exactly like normal, it also needs - * to keep the Host informed whenever it makes a change: the Host will create - * the real page tables based on the Guests'. + * Now, unfortunately, this isn't the whole story: Intel added Physical Address + * Extension (PAE) to allow 32 bit systems to use 64GB of memory (ie. 36 bits). + * These are held in 64-bit page table entries, so we can now only fit 512 + * entries in a page, and the neat three-level tree breaks down. + * + * The result is a four level page table: + * + * cr3 --> [ 4 Upper ] + * [ Level ] + * [ Entries ] + * [(PUD Page)]---> +---------+ + * | --------->+---------+ + * | | | PADDR1 | + * Mid-level | | PADDR2 | + * (PMD) page | | | + * | | Lower-level | + * | | (PTE) page | + * | | | | + * .... .... + * + * + * And the virtual address is decoded as: + * + * 1 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 + * |<-2->|<--- 9 bits ---->|<---- 9 bits --->|<------ 12 bits ------>| + * Index into Index into mid Index into lower Offset within page + * top entries directory page pagetable page + * + * It's too hard to switch between these two formats at runtime, so Linux only + * supports one or the other depending on whether CONFIG_X86_PAE is set. Many + * distributions turn it on, and not just for people with silly amounts of + * memory: the larger PTE entries allow room for the NX bit, which lets the + * kernel disable execution of pages and increase security. + * + * This was a problem for lguest, which couldn't run on these distributions; + * then Matias Zabaljauregui figured it all out and implemented it, and only a + * handful of puppies were crushed in the process! + * + * Back to our point: the kernel spends a lot of time changing both the + * top-level page directory and lower-level pagetable pages. The Guest doesn't + * know physical addresses, so while it maintains these page tables exactly + * like normal, it also needs to keep the Host informed whenever it makes a + * change: the Host will create the real page tables based on the Guests'. */ /* - * The Guest calls this to set a second-level entry (pte), ie. to map a page - * into a process' address space. We set the entry then tell the Host the - * toplevel and address this corresponds to. The Guest uses one pagetable per - * process, so we need to tell the Host which one we're changing (mm->pgd). + * The Guest calls this after it has set a second-level entry (pte), ie. to map + * a page into a process' address space. Wetell the Host the toplevel and + * address this corresponds to. The Guest uses one pagetable per process, so + * we need to tell the Host which one we're changing (mm->pgd). */ static void lguest_pte_update(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { #ifdef CONFIG_X86_PAE + /* PAE needs to hand a 64 bit page table entry, so it uses two args. */ lazy_hcall4(LHCALL_SET_PTE, __pa(mm->pgd), addr, ptep->pte_low, ptep->pte_high); #else @@ -612,6 +652,7 @@ static void lguest_pte_update(struct mm_struct *mm, unsigned long addr, #endif } +/* This is the "set and update" combo-meal-deal version. */ static void lguest_set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pteval) { @@ -672,6 +713,11 @@ static void lguest_set_pte(pte_t *ptep, pte_t pteval) } #ifdef CONFIG_X86_PAE +/* + * With 64-bit PTE values, we need to be careful setting them: if we set 32 + * bits at a time, the hardware could see a weird half-set entry. These + * versions ensure we update all 64 bits at once. + */ static void lguest_set_pte_atomic(pte_t *ptep, pte_t pte) { native_set_pte_atomic(ptep, pte); @@ -679,13 +725,14 @@ static void lguest_set_pte_atomic(pte_t *ptep, pte_t pte) lazy_hcall1(LHCALL_FLUSH_TLB, 1); } -void lguest_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) +static void lguest_pte_clear(struct mm_struct *mm, unsigned long addr, + pte_t *ptep) { native_pte_clear(mm, addr, ptep); lguest_pte_update(mm, addr, ptep); } -void lguest_pmd_clear(pmd_t *pmdp) +static void lguest_pmd_clear(pmd_t *pmdp) { lguest_set_pmd(pmdp, __pmd(0)); } @@ -784,6 +831,14 @@ static void __init lguest_init_IRQ(void) irq_ctx_init(smp_processor_id()); } +/* + * With CONFIG_SPARSE_IRQ, interrupt descriptors are allocated as-needed, so + * rather than set them in lguest_init_IRQ we are called here every time an + * lguest device needs an interrupt. + * + * FIXME: irq_to_desc_alloc_node() can fail due to lack of memory, we should + * pass that up! + */ void lguest_setup_irq(unsigned int irq) { irq_to_desc_alloc_node(irq, 0); @@ -1298,7 +1353,7 @@ __init void lguest_init(void) */ switch_to_new_gdt(0); - /* As described in head_32.S, we map the first 128M of memory. */ + /* We actually boot with all memory mapped, but let's say 128MB. */ max_pfn_mapped = (128*1024*1024) >> PAGE_SHIFT; /* diff --git a/arch/x86/lguest/i386_head.S b/arch/x86/lguest/i386_head.S index db6aa95eb05..27eac0faee4 100644 --- a/arch/x86/lguest/i386_head.S +++ b/arch/x86/lguest/i386_head.S @@ -102,6 +102,7 @@ send_interrupts: * create one manually here. */ .byte 0x0f,0x01,0xc1 /* KVM_HYPERCALL */ + /* Put eax back the way we found it. */ popl %eax ret @@ -125,6 +126,7 @@ ENTRY(lg_restore_fl) jnz send_interrupts /* Again, the normal path has used no extra registers. Clever, huh? */ ret +/*:*/ /* These demark the EIP range where host should never deliver interrupts. */ .global lguest_noirq_start diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c index cd058bc903f..1e2cb846b3c 100644 --- a/drivers/lguest/core.c +++ b/drivers/lguest/core.c @@ -217,10 +217,15 @@ int run_guest(struct lg_cpu *cpu, unsigned long __user *user) /* * It's possible the Guest did a NOTIFY hypercall to the - * Launcher, in which case we return from the read() now. + * Launcher. */ if (cpu->pending_notify) { + /* + * Does it just needs to write to a registered + * eventfd (ie. the appropriate virtqueue thread)? + */ if (!send_notify_to_eventfd(cpu)) { + /* OK, we tell the main Laucher. */ if (put_user(cpu->pending_notify, user)) return -EFAULT; return sizeof(cpu->pending_notify); diff --git a/drivers/lguest/hypercalls.c b/drivers/lguest/hypercalls.c index 787ab4bc09f..83511eb0923 100644 --- a/drivers/lguest/hypercalls.c +++ b/drivers/lguest/hypercalls.c @@ -59,7 +59,7 @@ static void do_hcall(struct lg_cpu *cpu, struct hcall_args *args) case LHCALL_SHUTDOWN: { char msg[128]; /* - * Shutdown is such a trivial hypercall that we do it in four + * Shutdown is such a trivial hypercall that we do it in five * lines right here. * * If the lgread fails, it will call kill_guest() itself; the @@ -245,6 +245,10 @@ static void initialize(struct lg_cpu *cpu) * device), the Guest will still see the old page. In practice, this never * happens: why would the Guest read a page which it has never written to? But * a similar scenario might one day bite us, so it's worth mentioning. + * + * Note that if we used a shared anonymous mapping in the Launcher instead of + * mapping /dev/zero private, we wouldn't worry about cop-on-write. And we + * need that to switch the Launcher to processes (away from threads) anyway. :*/ /*H:100 diff --git a/drivers/lguest/lguest_device.c b/drivers/lguest/lguest_device.c index cc000e79c3d..1401c1ace1e 100644 --- a/drivers/lguest/lguest_device.c +++ b/drivers/lguest/lguest_device.c @@ -236,7 +236,7 @@ static void lg_notify(struct virtqueue *vq) extern void lguest_setup_irq(unsigned int irq); /* - * This routine finds the first virtqueue described in the configuration of + * This routine finds the Nth virtqueue described in the configuration of * this device and sets it up. * * This is kind of an ugly duckling. It'd be nicer to have a standard @@ -244,9 +244,6 @@ extern void lguest_setup_irq(unsigned int irq); * everyone wants to do it differently. The KVM coders want the Guest to * allocate its own pages and tell the Host where they are, but for lguest it's * simpler for the Host to simply tell us where the pages are. - * - * So we provide drivers with a "find the Nth virtqueue and set it up" - * function. */ static struct virtqueue *lg_find_vq(struct virtio_device *vdev, unsigned index, @@ -422,7 +419,11 @@ static void add_lguest_device(struct lguest_device_desc *d, /* This devices' parent is the lguest/ dir. */ ldev->vdev.dev.parent = lguest_root; - /* We have a unique device index thanks to the dev_index counter. */ + /* + * The device type comes straight from the descriptor. There's also a + * device vendor field in the virtio_device struct, which we leave as + * 0. + */ ldev->vdev.id.device = d->type; /* * We have a simple set of routines for querying the device's diff --git a/drivers/lguest/lguest_user.c b/drivers/lguest/lguest_user.c index 7e92017103d..b4d3f7ca554 100644 --- a/drivers/lguest/lguest_user.c +++ b/drivers/lguest/lguest_user.c @@ -1,9 +1,8 @@ -/*P:200 - * This contains all the /dev/lguest code, whereby the userspace launcher +/*P:200 This contains all the /dev/lguest code, whereby the userspace launcher * controls and communicates with the Guest. For example, the first write will - * tell us the Guest's memory layout, pagetable, entry point and kernel address - * offset. A read will run the Guest until something happens, such as a signal - * or the Guest doing a NOTIFY out to the Launcher. + * tell us the Guest's memory layout and entry point. A read will run the + * Guest until something happens, such as a signal or the Guest doing a NOTIFY + * out to the Launcher. :*/ #include #include @@ -13,14 +12,41 @@ #include #include "lg.h" +/*L:056 + * Before we move on, let's jump ahead and look at what the kernel does when + * it needs to look up the eventfds. That will complete our picture of how we + * use RCU. + * + * The notification value is in cpu->pending_notify: we return true if it went + * to an eventfd. + */ bool send_notify_to_eventfd(struct lg_cpu *cpu) { unsigned int i; struct lg_eventfd_map *map; - /* lg->eventfds is RCU-protected */ + /* + * This "rcu_read_lock()" helps track when someone is still looking at + * the (RCU-using) eventfds array. It's not actually a lock at all; + * indeed it's a noop in many configurations. (You didn't expect me to + * explain all the RCU secrets here, did you?) + */ rcu_read_lock(); + /* + * rcu_dereference is the counter-side of rcu_assign_pointer(); it + * makes sure we don't access the memory pointed to by + * cpu->lg->eventfds before cpu->lg->eventfds is set. Sounds crazy, + * but Alpha allows this! Paul McKenney points out that a really + * aggressive compiler could have the same effect: + * http://lists.ozlabs.org/pipermail/lguest/2009-July/001560.html + * + * So play safe, use rcu_dereference to get the rcu-protected pointer: + */ map = rcu_dereference(cpu->lg->eventfds); + /* + * Simple array search: even if they add an eventfd while we do this, + * we'll continue to use the old array and just won't see the new one. + */ for (i = 0; i < map->num; i++) { if (map->map[i].addr == cpu->pending_notify) { eventfd_signal(map->map[i].event, 1); @@ -28,14 +54,43 @@ bool send_notify_to_eventfd(struct lg_cpu *cpu) break; } } + /* We're done with the rcu-protected variable cpu->lg->eventfds. */ rcu_read_unlock(); + + /* If we cleared the notification, it's because we found a match. */ return cpu->pending_notify == 0; } +/*L:055 + * One of the more tricksy tricks in the Linux Kernel is a technique called + * Read Copy Update. Since one point of lguest is to teach lguest journeyers + * about kernel coding, I use it here. (In case you're curious, other purposes + * include learning about virtualization and instilling a deep appreciation for + * simplicity and puppies). + * + * We keep a simple array which maps LHCALL_NOTIFY values to eventfds, but we + * add new eventfds without ever blocking readers from accessing the array. + * The current Launcher only does this during boot, so that never happens. But + * Read Copy Update is cool, and adding a lock risks damaging even more puppies + * than this code does. + * + * We allocate a brand new one-larger array, copy the old one and add our new + * element. Then we make the lg eventfd pointer point to the new array. + * That's the easy part: now we need to free the old one, but we need to make + * sure no slow CPU somewhere is still looking at it. That's what + * synchronize_rcu does for us: waits until every CPU has indicated that it has + * moved on to know it's no longer using the old one. + * + * If that's unclear, see http://en.wikipedia.org/wiki/Read-copy-update. + */ static int add_eventfd(struct lguest *lg, unsigned long addr, int fd) { struct lg_eventfd_map *new, *old = lg->eventfds; + /* + * We don't allow notifications on value 0 anyway (pending_notify of + * 0 means "nothing pending"). + */ if (!addr) return -EINVAL; @@ -62,12 +117,20 @@ static int add_eventfd(struct lguest *lg, unsigned long addr, int fd) } new->num++; - /* Now put new one in place. */ + /* + * Now put new one in place: rcu_assign_pointer() is a fancy way of + * doing "lg->eventfds = new", but it uses memory barriers to make + * absolutely sure that the contents of "new" written above is nailed + * down before we actually do the assignment. + * + * We have to think about these kinds of things when we're operating on + * live data without locks. + */ rcu_assign_pointer(lg->eventfds, new); /* * We're not in a big hurry. Wait until noone's looking at old - * version, then delete it. + * version, then free it. */ synchronize_rcu(); kfree(old); @@ -75,6 +138,14 @@ static int add_eventfd(struct lguest *lg, unsigned long addr, int fd) return 0; } +/*L:052 + * Receiving notifications from the Guest is usually done by attaching a + * particular LHCALL_NOTIFY value to an event filedescriptor. The eventfd will + * become readable when the Guest does an LHCALL_NOTIFY with that value. + * + * This is really convenient for processing each virtqueue in a separate + * thread. + */ static int attach_eventfd(struct lguest *lg, const unsigned long __user *input) { unsigned long addr, fd; @@ -86,6 +157,11 @@ static int attach_eventfd(struct lguest *lg, const unsigned long __user *input) if (get_user(fd, input) != 0) return -EFAULT; + /* + * Just make sure two callers don't add eventfds at once. We really + * only need to lock against callers adding to the same Guest, so using + * the Big Lguest Lock is overkill. But this is setup, not a fast path. + */ mutex_lock(&lguest_lock); err = add_eventfd(lg, addr, fd); mutex_unlock(&lguest_lock); @@ -106,6 +182,10 @@ static int user_send_irq(struct lg_cpu *cpu, const unsigned long __user *input) if (irq >= LGUEST_IRQS) return -EINVAL; + /* + * Next time the Guest runs, the core code will see if it can deliver + * this interrupt. + */ set_interrupt(cpu, irq); return 0; } @@ -307,10 +387,10 @@ unlock: * The first operation the Launcher does must be a write. All writes * start with an unsigned long number: for the first write this must be * LHREQ_INITIALIZE to set up the Guest. After that the Launcher can use - * writes of other values to send interrupts. + * writes of other values to send interrupts or set up receipt of notifications. * * Note that we overload the "offset" in the /dev/lguest file to indicate what - * CPU number we're dealing with. Currently this is always 0, since we only + * CPU number we're dealing with. Currently this is always 0 since we only * support uniprocessor Guests, but you can see the beginnings of SMP support * here. */ diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c index 3da902e4b4c..a8d0aee3bc0 100644 --- a/drivers/lguest/page_tables.c +++ b/drivers/lguest/page_tables.c @@ -29,10 +29,10 @@ /*H:300 * The Page Table Code * - * We use two-level page tables for the Guest. If you're not entirely - * comfortable with virtual addresses, physical addresses and page tables then - * I recommend you review arch/x86/lguest/boot.c's "Page Table Handling" (with - * diagrams!). + * We use two-level page tables for the Guest, or three-level with PAE. If + * you're not entirely comfortable with virtual addresses, physical addresses + * and page tables then I recommend you review arch/x86/lguest/boot.c's "Page + * Table Handling" (with diagrams!). * * The Guest keeps page tables, but we maintain the actual ones here: these are * called "shadow" page tables. Which is a very Guest-centric name: these are @@ -52,9 +52,8 @@ :*/ /* - * 1024 entries in a page table page maps 1024 pages: 4MB. The Switcher is - * conveniently placed at the top 4MB, so it uses a separate, complete PTE - * page. + * The Switcher uses the complete top PTE page. That's 1024 PTE entries (4MB) + * or 512 PTE entries with PAE (2MB). */ #define SWITCHER_PGD_INDEX (PTRS_PER_PGD - 1) @@ -81,7 +80,8 @@ static DEFINE_PER_CPU(pte_t *, switcher_pte_pages); /*H:320 * The page table code is curly enough to need helper functions to keep it - * clear and clean. + * clear and clean. The kernel itself provides many of them; one advantage + * of insisting that the Guest and Host use the same CONFIG_PAE setting. * * There are two functions which return pointers to the shadow (aka "real") * page tables. @@ -155,7 +155,7 @@ static pte_t *spte_addr(struct lg_cpu *cpu, pgd_t spgd, unsigned long vaddr) } /* - * These two functions just like the above two, except they access the Guest + * These functions are just like the above two, except they access the Guest * page tables. Hence they return a Guest address. */ static unsigned long gpgd_addr(struct lg_cpu *cpu, unsigned long vaddr) @@ -165,6 +165,7 @@ static unsigned long gpgd_addr(struct lg_cpu *cpu, unsigned long vaddr) } #ifdef CONFIG_X86_PAE +/* Follow the PGD to the PMD. */ static unsigned long gpmd_addr(pgd_t gpgd, unsigned long vaddr) { unsigned long gpage = pgd_pfn(gpgd) << PAGE_SHIFT; @@ -172,6 +173,7 @@ static unsigned long gpmd_addr(pgd_t gpgd, unsigned long vaddr) return gpage + pmd_index(vaddr) * sizeof(pmd_t); } +/* Follow the PMD to the PTE. */ static unsigned long gpte_addr(struct lg_cpu *cpu, pmd_t gpmd, unsigned long vaddr) { @@ -181,6 +183,7 @@ static unsigned long gpte_addr(struct lg_cpu *cpu, return gpage + pte_index(vaddr) * sizeof(pte_t); } #else +/* Follow the PGD to the PTE (no mid-level for !PAE). */ static unsigned long gpte_addr(struct lg_cpu *cpu, pgd_t gpgd, unsigned long vaddr) { @@ -314,6 +317,7 @@ bool demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode) pte_t gpte; pte_t *spte; + /* Mid level for PAE. */ #ifdef CONFIG_X86_PAE pmd_t *spmd; pmd_t gpmd; @@ -391,6 +395,8 @@ bool demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode) */ gpte_ptr = gpte_addr(cpu, gpgd, vaddr); #endif + + /* Read the actual PTE value. */ gpte = lgread(cpu, gpte_ptr, pte_t); /* If this page isn't in the Guest page tables, we can't page it in. */ @@ -507,6 +513,7 @@ void pin_page(struct lg_cpu *cpu, unsigned long vaddr) if (!page_writable(cpu, vaddr) && !demand_page(cpu, vaddr, 2)) kill_guest(cpu, "bad stack page %#lx", vaddr); } +/*:*/ #ifdef CONFIG_X86_PAE static void release_pmd(pmd_t *spmd) @@ -543,7 +550,11 @@ static void release_pgd(pgd_t *spgd) } #else /* !CONFIG_X86_PAE */ -/*H:450 If we chase down the release_pgd() code, it looks like this: */ +/*H:450 + * If we chase down the release_pgd() code, the non-PAE version looks like + * this. The PAE version is almost identical, but instead of calling + * release_pte it calls release_pmd(), which looks much like this. + */ static void release_pgd(pgd_t *spgd) { /* If the entry's not present, there's nothing to release. */ @@ -898,17 +909,21 @@ void guest_set_pgd(struct lguest *lg, unsigned long gpgdir, u32 idx) /* ... throw it away. */ release_pgd(lg->pgdirs[pgdir].pgdir + idx); } + #ifdef CONFIG_X86_PAE +/* For setting a mid-level, we just throw everything away. It's easy. */ void guest_set_pmd(struct lguest *lg, unsigned long pmdp, u32 idx) { guest_pagetable_clear_all(&lg->cpus[0]); } #endif -/* - * Once we know how much memory we have we can construct simple identity (which +/*H:505 + * To get through boot, we construct simple identity page mappings (which * set virtual == physical) and linear mappings which will get the Guest far - * enough into the boot to create its own. + * enough into the boot to create its own. The linear mapping means we + * simplify the Guest boot, but it makes assumptions about their PAGE_OFFSET, + * as you'll see. * * We lay them out of the way, just below the initrd (which is why we need to * know its size here). @@ -944,6 +959,10 @@ static unsigned long setup_pagetables(struct lguest *lg, linear = (void *)pgdir - linear_pages * PAGE_SIZE; #ifdef CONFIG_X86_PAE + /* + * And the single mid page goes below that. We only use one, but + * that's enough to map 1G, which definitely gets us through boot. + */ pmds = (void *)linear - PAGE_SIZE; #endif /* @@ -957,13 +976,14 @@ static unsigned long setup_pagetables(struct lguest *lg, return -EFAULT; } +#ifdef CONFIG_X86_PAE /* - * The top level points to the linear page table pages above. - * We setup the identity and linear mappings here. + * Make the Guest PMD entries point to the corresponding place in the + * linear mapping (up to one page worth of PMD). */ -#ifdef CONFIG_X86_PAE for (i = j = 0; i < mapped_pages && j < PTRS_PER_PMD; i += PTRS_PER_PTE, j++) { + /* FIXME: native_set_pmd is overkill here. */ native_set_pmd(&pmd, __pmd(((unsigned long)(linear + i) - mem_base) | _PAGE_PRESENT | _PAGE_RW | _PAGE_USER)); @@ -971,18 +991,36 @@ static unsigned long setup_pagetables(struct lguest *lg, return -EFAULT; } + /* One PGD entry, pointing to that PMD page. */ set_pgd(&pgd, __pgd(((u32)pmds - mem_base) | _PAGE_PRESENT)); + /* Copy it in as the first PGD entry (ie. addresses 0-1G). */ if (copy_to_user(&pgdir[0], &pgd, sizeof(pgd)) != 0) return -EFAULT; + /* + * And the third PGD entry (ie. addresses 3G-4G). + * + * FIXME: This assumes that PAGE_OFFSET for the Guest is 0xC0000000. + */ if (copy_to_user(&pgdir[3], &pgd, sizeof(pgd)) != 0) return -EFAULT; #else + /* + * The top level points to the linear page table pages above. + * We setup the identity and linear mappings here. + */ phys_linear = (unsigned long)linear - mem_base; for (i = 0; i < mapped_pages; i += PTRS_PER_PTE) { pgd_t pgd; + /* + * Create a PGD entry which points to the right part of the + * linear PTE pages. + */ pgd = __pgd((phys_linear + i * sizeof(pte_t)) | (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER)); + /* + * Copy it into the PGD page at 0 and PAGE_OFFSET. + */ if (copy_to_user(&pgdir[i / PTRS_PER_PTE], &pgd, sizeof(pgd)) || copy_to_user(&pgdir[pgd_index(PAGE_OFFSET) + i / PTRS_PER_PTE], @@ -992,8 +1030,8 @@ static unsigned long setup_pagetables(struct lguest *lg, #endif /* - * We return the top level (guest-physical) address: remember where - * this is. + * We return the top level (guest-physical) address: we remember where + * this is to write it into lguest_data when the Guest initializes. */ return (unsigned long)pgdir - mem_base; } @@ -1031,7 +1069,9 @@ int init_guest_pagetable(struct lguest *lg) lg->pgdirs[0].pgdir = (pgd_t *)get_zeroed_page(GFP_KERNEL); if (!lg->pgdirs[0].pgdir) return -ENOMEM; + #ifdef CONFIG_X86_PAE + /* For PAE, we also create the initial mid-level. */ pgd = lg->pgdirs[0].pgdir; pmd_table = (pmd_t *) get_zeroed_page(GFP_KERNEL); if (!pmd_table) @@ -1040,11 +1080,13 @@ int init_guest_pagetable(struct lguest *lg) set_pgd(pgd + SWITCHER_PGD_INDEX, __pgd(__pa(pmd_table) | _PAGE_PRESENT)); #endif + + /* This is the current page table. */ lg->cpus[0].cpu_pgd = 0; return 0; } -/* When the Guest calls LHCALL_LGUEST_INIT we do more setup. */ +/*H:508 When the Guest calls LHCALL_LGUEST_INIT we do more setup. */ void page_table_guest_data_init(struct lg_cpu *cpu) { /* We get the kernel address: above this is all kernel memory. */ @@ -1105,12 +1147,16 @@ void map_switcher_in_guest(struct lg_cpu *cpu, struct lguest_pages *pages) pmd_t switcher_pmd; pmd_t *pmd_table; + /* FIXME: native_set_pmd is overkill here. */ native_set_pmd(&switcher_pmd, pfn_pmd(__pa(switcher_pte_page) >> PAGE_SHIFT, PAGE_KERNEL_EXEC)); + /* Figure out where the pmd page is, by reading the PGD, and converting + * it to a virtual address. */ pmd_table = __va(pgd_pfn(cpu->lg-> pgdirs[cpu->cpu_pgd].pgdir[SWITCHER_PGD_INDEX]) << PAGE_SHIFT); + /* Now write it into the shadow page table. */ native_set_pmd(&pmd_table[SWITCHER_PMD_INDEX], switcher_pmd); #else pgd_t switcher_pgd; diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c index 96f7d88ec7f..6ae388849a3 100644 --- a/drivers/lguest/x86/core.c +++ b/drivers/lguest/x86/core.c @@ -187,7 +187,7 @@ static void run_guest_once(struct lg_cpu *cpu, struct lguest_pages *pages) * also simplify copy_in_guest_info(). Note that we'd still need to restore * things when we exit to Launcher userspace, but that's fairly easy. * - * We could also try using this hooks for PGE, but that might be too expensive. + * We could also try using these hooks for PGE, but that might be too expensive. * * The hooks were designed for KVM, but we can also put them to good use. :*/ diff --git a/drivers/lguest/x86/switcher_32.S b/drivers/lguest/x86/switcher_32.S index 6dec0979383..40634b0db9f 100644 --- a/drivers/lguest/x86/switcher_32.S +++ b/drivers/lguest/x86/switcher_32.S @@ -1,7 +1,7 @@ /*P:900 - * This is the Switcher: code which sits at 0xFFC00000 astride both the - * Host and Guest to do the low-level Guest<->Host switch. It is as simple as - * it can be made, but it's naturally very specific to x86. + * This is the Switcher: code which sits at 0xFFC00000 (or 0xFFE00000) astride + * both the Host and Guest to do the low-level Guest<->Host switch. It is as + * simple as it can be made, but it's naturally very specific to x86. * * You have now completed Preparation. If this has whet your appetite; if you * are feeling invigorated and refreshed then the next, more challenging stage -- cgit v1.2.3 From 1842f23c05b6a866be831aa60bc8a8731c58ddd0 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Thu, 30 Jul 2009 16:03:46 -0600 Subject: lguest and virtio: cleanup struct definitions to Linux style. I've been doing this for years, and akpm picked me up on it about 12 months ago. lguest partly serves as example code, so let's do it Right. Also, remove two unused fields in struct vblk_info in the example launcher. Signed-off-by: Rusty Russell Cc: Ingo Molnar --- Documentation/lguest/lguest.c | 21 +++++---------------- drivers/lguest/lg.h | 9 +++------ drivers/lguest/lguest_device.c | 3 +-- include/linux/lguest.h | 3 +-- include/linux/virtio_blk.h | 6 ++---- include/linux/virtio_config.h | 3 +-- include/linux/virtio_net.h | 6 ++---- include/linux/virtio_ring.h | 12 ++++-------- 8 files changed, 19 insertions(+), 44 deletions(-) diff --git a/Documentation/lguest/lguest.c b/Documentation/lguest/lguest.c index 45163651b51..950cde6d6e5 100644 --- a/Documentation/lguest/lguest.c +++ b/Documentation/lguest/lguest.c @@ -93,8 +93,7 @@ static int lguest_fd; static unsigned int __thread cpu_id; /* This is our list of devices. */ -struct device_list -{ +struct device_list { /* Counter to assign interrupt numbers. */ unsigned int next_irq; @@ -114,8 +113,7 @@ struct device_list static struct device_list devices; /* The device structure describes a single device. */ -struct device -{ +struct device { /* The linked-list pointer. */ struct device *next; @@ -140,8 +138,7 @@ struct device }; /* The virtqueue structure describes a queue attached to a device. */ -struct virtqueue -{ +struct virtqueue { struct virtqueue *next; /* Which device owns me. */ @@ -779,8 +776,7 @@ static void add_used_and_trigger(struct virtqueue *vq, unsigned head, int len) * * We associate some data with the console for our exit hack. */ -struct console_abort -{ +struct console_abort { /* How many times have they hit ^C? */ int count; /* When did they start? */ @@ -1570,20 +1566,13 @@ static void setup_tun_net(char *arg) /*:*/ /* This hangs off device->priv. */ -struct vblk_info -{ +struct vblk_info { /* The size of the file. */ off64_t len; /* The file descriptor for the file. */ int fd; - /* IO thread listens on this file descriptor [0]. */ - int workpipe[2]; - - /* IO thread writes to this file descriptor to mark it done, then - * Launcher triggers interrupt to Guest. */ - int done_fd; }; /*L:210 diff --git a/drivers/lguest/lg.h b/drivers/lguest/lg.h index 74c0db691b5..bc28745d05a 100644 --- a/drivers/lguest/lg.h +++ b/drivers/lguest/lg.h @@ -16,15 +16,13 @@ void free_pagetables(void); int init_pagetables(struct page **switcher_page, unsigned int pages); -struct pgdir -{ +struct pgdir { unsigned long gpgdir; pgd_t *pgdir; }; /* We have two pages shared with guests, per cpu. */ -struct lguest_pages -{ +struct lguest_pages { /* This is the stack page mapped rw in guest */ char spare[PAGE_SIZE - sizeof(struct lguest_regs)]; struct lguest_regs regs; @@ -89,8 +87,7 @@ struct lg_eventfd_map { }; /* The private info the thread maintains about the guest. */ -struct lguest -{ +struct lguest { struct lguest_data __user *lguest_data; struct lg_cpu cpus[NR_CPUS]; unsigned int nr_cpus; diff --git a/drivers/lguest/lguest_device.c b/drivers/lguest/lguest_device.c index 1401c1ace1e..b6200bc39b5 100644 --- a/drivers/lguest/lguest_device.c +++ b/drivers/lguest/lguest_device.c @@ -207,8 +207,7 @@ static void lg_reset(struct virtio_device *vdev) */ /*D:140 This is the information we remember about each virtqueue. */ -struct lguest_vq_info -{ +struct lguest_vq_info { /* A copy of the information contained in the device config. */ struct lguest_vqconfig config; diff --git a/include/linux/lguest.h b/include/linux/lguest.h index 0a3a11afd64..2fb1dcbcb5a 100644 --- a/include/linux/lguest.h +++ b/include/linux/lguest.h @@ -18,8 +18,7 @@ * lguest_data". Once the Guest's initialization hypercall tells the Host where * this is, the Guest and Host both publish information in it. :*/ -struct lguest_data -{ +struct lguest_data { /* * 512 == enabled (same as eflags in normal hardware). The Guest * changes interrupts so often that a hypercall is too slow. diff --git a/include/linux/virtio_blk.h b/include/linux/virtio_blk.h index be7d255fc7c..8dab9f2b883 100644 --- a/include/linux/virtio_blk.h +++ b/include/linux/virtio_blk.h @@ -20,8 +20,7 @@ #define VIRTIO_BLK_ID_BYTES (sizeof(__u16[256])) /* IDENTIFY DATA */ -struct virtio_blk_config -{ +struct virtio_blk_config { /* The capacity (in 512-byte sectors). */ __u64 capacity; /* The maximum segment size (if VIRTIO_BLK_F_SIZE_MAX) */ @@ -50,8 +49,7 @@ struct virtio_blk_config #define VIRTIO_BLK_T_BARRIER 0x80000000 /* This is the first element of the read scatter-gather list. */ -struct virtio_blk_outhdr -{ +struct virtio_blk_outhdr { /* VIRTIO_BLK_T* */ __u32 type; /* io priority. */ diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h index 99f514575f6..e547e3c8ee9 100644 --- a/include/linux/virtio_config.h +++ b/include/linux/virtio_config.h @@ -79,8 +79,7 @@ * the dev->feature bits if it wants. */ typedef void vq_callback_t(struct virtqueue *); -struct virtio_config_ops -{ +struct virtio_config_ops { void (*get)(struct virtio_device *vdev, unsigned offset, void *buf, unsigned len); void (*set)(struct virtio_device *vdev, unsigned offset, diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h index 9c543d6ac53..d8dd539c9f4 100644 --- a/include/linux/virtio_net.h +++ b/include/linux/virtio_net.h @@ -31,8 +31,7 @@ #define VIRTIO_NET_S_LINK_UP 1 /* Link is up */ -struct virtio_net_config -{ +struct virtio_net_config { /* The config defining mac address (if VIRTIO_NET_F_MAC) */ __u8 mac[6]; /* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */ @@ -41,8 +40,7 @@ struct virtio_net_config /* This is the first element of the scatter-gather list. If you don't * specify GSO or CSUM features, you can simply ignore the header. */ -struct virtio_net_hdr -{ +struct virtio_net_hdr { #define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 // Use csum_start, csum_offset __u8 flags; #define VIRTIO_NET_HDR_GSO_NONE 0 // Not a GSO frame diff --git a/include/linux/virtio_ring.h b/include/linux/virtio_ring.h index 693e0ec5afa..e4d144b132b 100644 --- a/include/linux/virtio_ring.h +++ b/include/linux/virtio_ring.h @@ -30,8 +30,7 @@ #define VIRTIO_RING_F_INDIRECT_DESC 28 /* Virtio ring descriptors: 16 bytes. These can chain together via "next". */ -struct vring_desc -{ +struct vring_desc { /* Address (guest-physical). */ __u64 addr; /* Length. */ @@ -42,24 +41,21 @@ struct vring_desc __u16 next; }; -struct vring_avail -{ +struct vring_avail { __u16 flags; __u16 idx; __u16 ring[]; }; /* u32 is used here for ids for padding reasons. */ -struct vring_used_elem -{ +struct vring_used_elem { /* Index of start of used descriptor chain. */ __u32 id; /* Total length of the descriptor chain which was used (written to) */ __u32 len; }; -struct vring_used -{ +struct vring_used { __u16 flags; __u16 idx; struct vring_used_elem ring[]; -- cgit v1.2.3 From e624859e7eb6ae2930df3923af73406dc6ccdad8 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 27 Jul 2009 22:11:59 +0100 Subject: ARM: 5624/1: Document cache aliasing region Augment the memory.txt file for ARM to list the cache aliasing region ffff4000-fffffff. Signed-off-by: Linus Walleij Signed-off-by: Russell King --- Documentation/arm/memory.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/arm/memory.txt b/Documentation/arm/memory.txt index 43cb1004d35..9d58c7c5edd 100644 --- a/Documentation/arm/memory.txt +++ b/Documentation/arm/memory.txt @@ -21,6 +21,8 @@ ffff8000 ffffffff copy_user_page / clear_user_page use. For SA11xx and Xscale, this is used to setup a minicache mapping. +ffff4000 ffffffff cache aliasing on ARMv6 and later CPUs. + ffff1000 ffff7fff Reserved. Platforms must not use this address range. -- cgit v1.2.3 From 3ef7143d2287b21e09e00a25a8cb4fbdcf0c6c4c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Wed, 29 Jul 2009 19:31:30 +0100 Subject: ARM: 5627/1: Fix restoring of lr at the end of mcount MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit After ftrace_trace_function is called r1 is probably clobbered so don't try to use its value for restoring. This was introduced in v2.6.29~38^2~7 Signed-off-by: Uwe Kleine-König Signed-off-by: Russell King --- arch/arm/kernel/entry-common.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S index 366e5097a41..8c3de1a350b 100644 --- a/arch/arm/kernel/entry-common.S +++ b/arch/arm/kernel/entry-common.S @@ -148,7 +148,7 @@ trace: sub r0, r0, #MCOUNT_INSN_SIZE mov lr, pc mov pc, r2 - mov lr, r1 @ restore lr + ldr lr, [fp, #-4] @ restore lr ldmia sp!, {r0-r3, pc} #endif /* CONFIG_DYNAMIC_FTRACE */ -- cgit v1.2.3 From 320145fac91955ee35a6af7e1c2b42388a17b3d8 Mon Sep 17 00:00:00 2001 From: Yegor Yefremov Date: Thu, 9 Jul 2009 08:48:03 +0100 Subject: ARM: 5597/1: [PCI] reset all internal hardware prior PCI initialization Make software reset to avoid freeze if PCI bus was messed up Signed-off-by: Yegor Yefremov Acked-by: Andrew Victor Signed-off-by: Russell King --- arch/arm/mach-ks8695/pci.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm/mach-ks8695/pci.c b/arch/arm/mach-ks8695/pci.c index f5ebcc0fcab..78499667eb7 100644 --- a/arch/arm/mach-ks8695/pci.c +++ b/arch/arm/mach-ks8695/pci.c @@ -245,6 +245,9 @@ static int ks8695_pci_fault(unsigned long addr, unsigned int fsr, struct pt_regs static void __init ks8695_pci_preinit(void) { + /* make software reset to avoid freeze if PCI bus was messed up */ + __raw_writel(0x80000000, KS8695_PCI_VA + KS8695_PBCS); + /* stage 1 initialization, subid, subdevice = 0x0001 */ __raw_writel(0x00010001, KS8695_PCI_VA + KS8695_CRCSID); -- cgit v1.2.3 From 2163b1e616c41c286f5ab79912671cd4bf52057c Mon Sep 17 00:00:00 2001 From: Steven Whitehouse Date: Thu, 25 Jun 2009 16:30:26 +0100 Subject: GFS2: Shrink the shrinker This patch removes some of the special cases that the shrinker was trying to deal with. As a result we leave fewer items on the list and none at all which cannot be demoted. This makes the list scanning more efficient and solves some issues seen with large numbers of inodes. Signed-off-by: Steven Whitehouse --- fs/gfs2/glock.c | 23 +++++------------------ 1 file changed, 5 insertions(+), 18 deletions(-) diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index 297421c0427..fdb796c4f94 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -1300,7 +1300,6 @@ static int gfs2_shrink_glock_memory(int nr, gfp_t gfp_mask) struct gfs2_glock *gl; int may_demote; int nr_skipped = 0; - int got_ref = 0; LIST_HEAD(skipped); if (nr == 0) @@ -1318,7 +1317,6 @@ static int gfs2_shrink_glock_memory(int nr, gfp_t gfp_mask) /* Test for being demotable */ if (!test_and_set_bit(GLF_LOCK, &gl->gl_flags)) { gfs2_glock_hold(gl); - got_ref = 1; spin_unlock(&lru_lock); spin_lock(&gl->gl_spin); may_demote = demote_ok(gl); @@ -1327,25 +1325,14 @@ static int gfs2_shrink_glock_memory(int nr, gfp_t gfp_mask) if (may_demote) { handle_callback(gl, LM_ST_UNLOCKED, 0); nr--; - if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0) - gfs2_glock_put(gl); - got_ref = 0; } + if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0) + gfs2_glock_put(gl); spin_lock(&lru_lock); - if (may_demote) - continue; - } - if (list_empty(&gl->gl_lru) && - (atomic_read(&gl->gl_ref) <= (2 + got_ref))) { - nr_skipped++; - list_add(&gl->gl_lru, &skipped); - } - if (got_ref) { - spin_unlock(&lru_lock); - gfs2_glock_put(gl); - spin_lock(&lru_lock); - got_ref = 0; + continue; } + nr_skipped++; + list_add(&gl->gl_lru, &skipped); } list_splice(&skipped, &lru_list); atomic_add(nr_skipped, &lru_count); -- cgit v1.2.3 From 1946f70ab5e4eb8b54a8eaaedba2293a3750ab7e Mon Sep 17 00:00:00 2001 From: Benjamin Marzinski Date: Thu, 25 Jun 2009 15:09:51 -0500 Subject: GFS2: keep statfs info in sync on grows GFS2 wasn't syncing its statfs info on grows. This causes a problem when you grow the filesystem on multiple nodes. GFS2 would calculate the new space based on the resource groups (which are always current), and then assume that the filesystem had grown the from the existing statfs size. If you grew the filesystem on two different nodes in a short time, the second node wouldn't see the statfs size change from the first node, and would assume that it was grown by a larger amount than it was. When all these changes were synced out, the total fileystem size would be incorrect (the first grow would be counted twice). This patch syncs makes GFS2 read in the statfs changes from disk before a grow, and write them out after the grow, while the master statfs inode is locked. Signed-off-by: Benjamin Marzinski Signed-off-by: Steven Whitehouse --- fs/gfs2/aops.c | 39 +++++++++++++++++++++++++++++++++++++++ fs/gfs2/super.c | 39 +++++++++++++++++++++++++-------------- fs/gfs2/super.h | 4 ++++ 3 files changed, 68 insertions(+), 14 deletions(-) diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c index 03ebb439ace..7ebae9a4ecc 100644 --- a/fs/gfs2/aops.c +++ b/fs/gfs2/aops.c @@ -624,6 +624,7 @@ static int gfs2_write_begin(struct file *file, struct address_space *mapping, { struct gfs2_inode *ip = GFS2_I(mapping->host); struct gfs2_sbd *sdp = GFS2_SB(mapping->host); + struct gfs2_inode *m_ip = GFS2_I(sdp->sd_statfs_inode); unsigned int data_blocks = 0, ind_blocks = 0, rblocks; int alloc_required; int error = 0; @@ -637,6 +638,14 @@ static int gfs2_write_begin(struct file *file, struct address_space *mapping, error = gfs2_glock_nq(&ip->i_gh); if (unlikely(error)) goto out_uninit; + if (&ip->i_inode == sdp->sd_rindex) { + error = gfs2_glock_nq_init(m_ip->i_gl, LM_ST_EXCLUSIVE, + GL_NOCACHE, &m_ip->i_gh); + if (unlikely(error)) { + gfs2_glock_dq(&ip->i_gh); + goto out_uninit; + } + } error = gfs2_write_alloc_required(ip, pos, len, &alloc_required); if (error) @@ -667,6 +676,8 @@ static int gfs2_write_begin(struct file *file, struct address_space *mapping, rblocks += data_blocks ? data_blocks : 1; if (ind_blocks || data_blocks) rblocks += RES_STATFS + RES_QUOTA; + if (&ip->i_inode == sdp->sd_rindex) + rblocks += 2 * RES_STATFS; error = gfs2_trans_begin(sdp, rblocks, PAGE_CACHE_SIZE/sdp->sd_sb.sb_bsize); @@ -712,6 +723,10 @@ out_alloc_put: gfs2_alloc_put(ip); } out_unlock: + if (&ip->i_inode == sdp->sd_rindex) { + gfs2_glock_dq(&m_ip->i_gh); + gfs2_holder_uninit(&m_ip->i_gh); + } gfs2_glock_dq(&ip->i_gh); out_uninit: gfs2_holder_uninit(&ip->i_gh); @@ -725,14 +740,21 @@ out_uninit: static void adjust_fs_space(struct inode *inode) { struct gfs2_sbd *sdp = inode->i_sb->s_fs_info; + struct gfs2_inode *m_ip = GFS2_I(sdp->sd_statfs_inode); + struct gfs2_inode *l_ip = GFS2_I(sdp->sd_sc_inode); struct gfs2_statfs_change_host *m_sc = &sdp->sd_statfs_master; struct gfs2_statfs_change_host *l_sc = &sdp->sd_statfs_local; + struct buffer_head *m_bh, *l_bh; u64 fs_total, new_free; /* Total up the file system space, according to the latest rindex. */ fs_total = gfs2_ri_total(sdp); + if (gfs2_meta_inode_buffer(m_ip, &m_bh) != 0) + return; spin_lock(&sdp->sd_statfs_spin); + gfs2_statfs_change_in(m_sc, m_bh->b_data + + sizeof(struct gfs2_dinode)); if (fs_total > (m_sc->sc_total + l_sc->sc_total)) new_free = fs_total - (m_sc->sc_total + l_sc->sc_total); else @@ -741,6 +763,13 @@ static void adjust_fs_space(struct inode *inode) fs_warn(sdp, "File system extended by %llu blocks.\n", (unsigned long long)new_free); gfs2_statfs_change(sdp, new_free, new_free, 0); + + if (gfs2_meta_inode_buffer(l_ip, &l_bh) != 0) + goto out; + update_statfs(sdp, m_bh, l_bh); + brelse(l_bh); +out: + brelse(m_bh); } /** @@ -763,6 +792,7 @@ static int gfs2_stuffed_write_end(struct inode *inode, struct buffer_head *dibh, { struct gfs2_inode *ip = GFS2_I(inode); struct gfs2_sbd *sdp = GFS2_SB(inode); + struct gfs2_inode *m_ip = GFS2_I(sdp->sd_statfs_inode); u64 to = pos + copied; void *kaddr; unsigned char *buf = dibh->b_data + sizeof(struct gfs2_dinode); @@ -794,6 +824,10 @@ static int gfs2_stuffed_write_end(struct inode *inode, struct buffer_head *dibh, brelse(dibh); gfs2_trans_end(sdp); + if (inode == sdp->sd_rindex) { + gfs2_glock_dq(&m_ip->i_gh); + gfs2_holder_uninit(&m_ip->i_gh); + } gfs2_glock_dq(&ip->i_gh); gfs2_holder_uninit(&ip->i_gh); return copied; @@ -823,6 +857,7 @@ static int gfs2_write_end(struct file *file, struct address_space *mapping, struct inode *inode = page->mapping->host; struct gfs2_inode *ip = GFS2_I(inode); struct gfs2_sbd *sdp = GFS2_SB(inode); + struct gfs2_inode *m_ip = GFS2_I(sdp->sd_statfs_inode); struct buffer_head *dibh; struct gfs2_alloc *al = ip->i_alloc; unsigned int from = pos & (PAGE_CACHE_SIZE - 1); @@ -865,6 +900,10 @@ failed: gfs2_quota_unlock(ip); gfs2_alloc_put(ip); } + if (inode == sdp->sd_rindex) { + gfs2_glock_dq(&m_ip->i_gh); + gfs2_holder_uninit(&m_ip->i_gh); + } gfs2_glock_dq(&ip->i_gh); gfs2_holder_uninit(&ip->i_gh); return ret; diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c index 0a680133647..552e321cee5 100644 --- a/fs/gfs2/super.c +++ b/fs/gfs2/super.c @@ -353,7 +353,7 @@ fail: return error; } -static void gfs2_statfs_change_in(struct gfs2_statfs_change_host *sc, const void *buf) +void gfs2_statfs_change_in(struct gfs2_statfs_change_host *sc, const void *buf) { const struct gfs2_statfs_change *str = buf; @@ -441,6 +441,29 @@ void gfs2_statfs_change(struct gfs2_sbd *sdp, s64 total, s64 free, brelse(l_bh); } +void update_statfs(struct gfs2_sbd *sdp, struct buffer_head *m_bh, + struct buffer_head *l_bh) +{ + struct gfs2_inode *m_ip = GFS2_I(sdp->sd_statfs_inode); + struct gfs2_inode *l_ip = GFS2_I(sdp->sd_sc_inode); + struct gfs2_statfs_change_host *m_sc = &sdp->sd_statfs_master; + struct gfs2_statfs_change_host *l_sc = &sdp->sd_statfs_local; + + gfs2_trans_add_bh(l_ip->i_gl, l_bh, 1); + + spin_lock(&sdp->sd_statfs_spin); + m_sc->sc_total += l_sc->sc_total; + m_sc->sc_free += l_sc->sc_free; + m_sc->sc_dinodes += l_sc->sc_dinodes; + memset(l_sc, 0, sizeof(struct gfs2_statfs_change)); + memset(l_bh->b_data + sizeof(struct gfs2_dinode), + 0, sizeof(struct gfs2_statfs_change)); + spin_unlock(&sdp->sd_statfs_spin); + + gfs2_trans_add_bh(m_ip->i_gl, m_bh, 1); + gfs2_statfs_change_out(m_sc, m_bh->b_data + sizeof(struct gfs2_dinode)); +} + int gfs2_statfs_sync(struct gfs2_sbd *sdp) { struct gfs2_inode *m_ip = GFS2_I(sdp->sd_statfs_inode); @@ -477,19 +500,7 @@ int gfs2_statfs_sync(struct gfs2_sbd *sdp) if (error) goto out_bh2; - gfs2_trans_add_bh(l_ip->i_gl, l_bh, 1); - - spin_lock(&sdp->sd_statfs_spin); - m_sc->sc_total += l_sc->sc_total; - m_sc->sc_free += l_sc->sc_free; - m_sc->sc_dinodes += l_sc->sc_dinodes; - memset(l_sc, 0, sizeof(struct gfs2_statfs_change)); - memset(l_bh->b_data + sizeof(struct gfs2_dinode), - 0, sizeof(struct gfs2_statfs_change)); - spin_unlock(&sdp->sd_statfs_spin); - - gfs2_trans_add_bh(m_ip->i_gl, m_bh, 1); - gfs2_statfs_change_out(m_sc, m_bh->b_data + sizeof(struct gfs2_dinode)); + update_statfs(sdp, m_bh, l_bh); gfs2_trans_end(sdp); diff --git a/fs/gfs2/super.h b/fs/gfs2/super.h index b56413e3e40..22e0417ed99 100644 --- a/fs/gfs2/super.h +++ b/fs/gfs2/super.h @@ -40,6 +40,10 @@ extern int gfs2_make_fs_rw(struct gfs2_sbd *sdp); extern int gfs2_statfs_init(struct gfs2_sbd *sdp); extern void gfs2_statfs_change(struct gfs2_sbd *sdp, s64 total, s64 free, s64 dinodes); +extern void gfs2_statfs_change_in(struct gfs2_statfs_change_host *sc, + const void *buf); +extern void update_statfs(struct gfs2_sbd *sdp, struct buffer_head *m_bh, + struct buffer_head *l_bh); extern int gfs2_statfs_sync(struct gfs2_sbd *sdp); extern int gfs2_freeze_fs(struct gfs2_sbd *sdp); -- cgit v1.2.3 From a51b56fff3f04fc5aa66b21a2a6d693ee9862d66 Mon Sep 17 00:00:00 2001 From: Benjamin Marzinski Date: Tue, 30 Jun 2009 13:51:11 -0500 Subject: GFS2: Fix panic in glock memory shrinker It is possible for gfs2_shrink_glock_memory() to check a glock for demotion that's in the process of being freed by gfs2_glock_put(). In this case, gfs2_shrink_glock_memory() will acquire a new reference to this glock, and then try to free the glock itself when it drops the refernce. To solve this, gfs2_shrink_glock_memory() just needs to check if the glock is in the process of being freed, and if so skip it without ever unlocking the lru_lock. Signed-off-by: Benjamin Marzinski Acked-by: Bob Peterson Signed-off-by: Steven Whitehouse --- fs/gfs2/glock.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index fdb796c4f94..827136ee794 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -1314,6 +1314,10 @@ static int gfs2_shrink_glock_memory(int nr, gfp_t gfp_mask) list_del_init(&gl->gl_lru); atomic_dec(&lru_count); + /* Check if glock is about to be freed */ + if (atomic_read(&gl->gl_ref) == 0) + continue; + /* Test for being demotable */ if (!test_and_set_bit(GLF_LOCK, &gl->gl_flags)) { gfs2_glock_hold(gl); -- cgit v1.2.3 From 1e19a19584b332eb92a573b66b7342fb97e67507 Mon Sep 17 00:00:00 2001 From: Steven Whitehouse Date: Fri, 10 Jul 2009 21:13:38 +0100 Subject: GFS2: Don't try and dealloc own inode When searching for unlinked, but still allocated inodes during block allocation, avoid the block relating to the inode that is doing the allocation. This fixes a hang caused when an unlinked, but still open, inode tries to allocate some more blocks and lands up finding itself during the search for deallocatable inodes. Signed-off-by: Steven Whitehouse --- fs/gfs2/rgrp.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c index daa4ae341a2..5e5074176da 100644 --- a/fs/gfs2/rgrp.c +++ b/fs/gfs2/rgrp.c @@ -961,7 +961,8 @@ static int try_rgrp_fit(struct gfs2_rgrpd *rgd, struct gfs2_alloc *al) * Returns: The inode, if one has been found */ -static struct inode *try_rgrp_unlink(struct gfs2_rgrpd *rgd, u64 *last_unlinked) +static struct inode *try_rgrp_unlink(struct gfs2_rgrpd *rgd, u64 *last_unlinked, + u64 skip) { struct inode *inode; u32 goal = 0, block; @@ -985,6 +986,8 @@ static struct inode *try_rgrp_unlink(struct gfs2_rgrpd *rgd, u64 *last_unlinked) goal++; if (*last_unlinked != NO_BLOCK && no_addr <= *last_unlinked) continue; + if (no_addr == skip) + continue; *last_unlinked = no_addr; inode = gfs2_inode_lookup(rgd->rd_sbd->sd_vfs, DT_UNKNOWN, no_addr, -1, 1); @@ -1104,7 +1107,7 @@ static struct inode *get_local_rgrp(struct gfs2_inode *ip, u64 *last_unlinked) if (try_rgrp_fit(rgd, al)) goto out; if (rgd->rd_flags & GFS2_RDF_CHECK) - inode = try_rgrp_unlink(rgd, last_unlinked); + inode = try_rgrp_unlink(rgd, last_unlinked, ip->i_no_addr); if (!rg_locked) gfs2_glock_dq_uninit(&al->al_rgd_gh); if (inode) @@ -1138,7 +1141,7 @@ static struct inode *get_local_rgrp(struct gfs2_inode *ip, u64 *last_unlinked) if (try_rgrp_fit(rgd, al)) goto out; if (rgd->rd_flags & GFS2_RDF_CHECK) - inode = try_rgrp_unlink(rgd, last_unlinked); + inode = try_rgrp_unlink(rgd, last_unlinked, ip->i_no_addr); if (!rg_locked) gfs2_glock_dq_uninit(&al->al_rgd_gh); if (inode) -- cgit v1.2.3 From 8ff22a6f9bdaac87c0eeb1d56c736181f11b4221 Mon Sep 17 00:00:00 2001 From: Benjamin Marzinski Date: Fri, 10 Jul 2009 18:04:24 -0500 Subject: GFS2: Don't put unlikely reclaim candidates on the reclaim list. GFS2 was placing far too many glocks on the reclaim list that were not good candidates for freeing up from cache. These locks would sit there and repeatedly get scanned to see if they could be reclaimed, wasting a lot of time when there was memory pressure. This fix does more checks on the locks to see if they are actually likely to be removable from cache. Signed-off-by: Benjamin Marzinski Signed-off-by: Steven Whitehouse --- fs/gfs2/glock.c | 72 ++++++++++++++++++++++++++++++++++++--------------------- 1 file changed, 46 insertions(+), 26 deletions(-) diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index 827136ee794..f041a89e1ab 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -173,6 +173,26 @@ static void gfs2_glock_hold(struct gfs2_glock *gl) atomic_inc(&gl->gl_ref); } +/** + * demote_ok - Check to see if it's ok to unlock a glock + * @gl: the glock + * + * Returns: 1 if it's ok + */ + +static int demote_ok(const struct gfs2_glock *gl) +{ + const struct gfs2_glock_operations *glops = gl->gl_ops; + + if (gl->gl_state == LM_ST_UNLOCKED) + return 0; + if (!list_empty(&gl->gl_holders)) + return 0; + if (glops->go_demote_ok) + return glops->go_demote_ok(gl); + return 1; +} + /** * gfs2_glock_schedule_for_reclaim - Add a glock to the reclaim list * @gl: the glock @@ -181,14 +201,34 @@ static void gfs2_glock_hold(struct gfs2_glock *gl) static void gfs2_glock_schedule_for_reclaim(struct gfs2_glock *gl) { + int may_reclaim; + may_reclaim = (demote_ok(gl) && + (atomic_read(&gl->gl_ref) == 1 || + (gl->gl_name.ln_type == LM_TYPE_INODE && + atomic_read(&gl->gl_ref) <= 2))); spin_lock(&lru_lock); - if (list_empty(&gl->gl_lru) && gl->gl_state != LM_ST_UNLOCKED) { + if (list_empty(&gl->gl_lru) && may_reclaim) { list_add_tail(&gl->gl_lru, &lru_list); atomic_inc(&lru_count); } spin_unlock(&lru_lock); } +/** + * gfs2_glock_put_nolock() - Decrement reference count on glock + * @gl: The glock to put + * + * This function should only be used if the caller has its own reference + * to the glock, in addition to the one it is dropping. + */ + +static void gfs2_glock_put_nolock(struct gfs2_glock *gl) +{ + if (atomic_dec_and_test(&gl->gl_ref)) + GLOCK_BUG_ON(gl, 1); + gfs2_glock_schedule_for_reclaim(gl); +} + /** * gfs2_glock_put() - Decrement reference count on glock * @gl: The glock to put @@ -214,9 +254,9 @@ int gfs2_glock_put(struct gfs2_glock *gl) rv = 1; goto out; } - /* 1 for being hashed, 1 for having state != LM_ST_UNLOCKED */ - if (atomic_read(&gl->gl_ref) == 2) - gfs2_glock_schedule_for_reclaim(gl); + spin_lock(&gl->gl_spin); + gfs2_glock_schedule_for_reclaim(gl); + spin_unlock(&gl->gl_spin); write_unlock(gl_lock_addr(gl->gl_hash)); out: return rv; @@ -398,7 +438,7 @@ static void state_change(struct gfs2_glock *gl, unsigned int new_state) if (held2) gfs2_glock_hold(gl); else - gfs2_glock_put(gl); + gfs2_glock_put_nolock(gl); } gl->gl_state = new_state; @@ -633,7 +673,7 @@ out: out_sched: gfs2_glock_hold(gl); if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0) - gfs2_glock_put(gl); + gfs2_glock_put_nolock(gl); out_unlock: clear_bit(GLF_LOCK, &gl->gl_flags); goto out; @@ -1274,26 +1314,6 @@ void gfs2_glock_complete(struct gfs2_glock *gl, int ret) gfs2_glock_put(gl); } -/** - * demote_ok - Check to see if it's ok to unlock a glock - * @gl: the glock - * - * Returns: 1 if it's ok - */ - -static int demote_ok(const struct gfs2_glock *gl) -{ - const struct gfs2_glock_operations *glops = gl->gl_ops; - - if (gl->gl_state == LM_ST_UNLOCKED) - return 0; - if (!list_empty(&gl->gl_holders)) - return 0; - if (glops->go_demote_ok) - return glops->go_demote_ok(gl); - return 1; -} - static int gfs2_shrink_glock_memory(int nr, gfp_t gfp_mask) { -- cgit v1.2.3 From 6b94617024bd6810cde1d0d491202c30d5a38d91 Mon Sep 17 00:00:00 2001 From: Benjamin Marzinski Date: Fri, 10 Jul 2009 18:13:26 -0500 Subject: GFS2: Fix incorrent statfs consistency check Since both linked and unlinked inodes are counted by rgd->rd_dinodes, It makes no sense to count them with the used data blocks (first check that I changed), it makes sense to count them with the linked inodes (second check), and it makes no sense to care if there are more unlinked inodes than linked ones. This fixes these errors. Signed-off-by: Benjamin Marzinski Signed-off-by: Steven Whitehouse --- fs/gfs2/rgrp.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c index 5e5074176da..fba795798d3 100644 --- a/fs/gfs2/rgrp.c +++ b/fs/gfs2/rgrp.c @@ -285,27 +285,19 @@ void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd) } tmp = rgd->rd_data - rgd->rd_free - rgd->rd_dinodes; - if (count[1] + count[2] != tmp) { + if (count[1] != tmp) { if (gfs2_consist_rgrpd(rgd)) fs_err(sdp, "used data mismatch: %u != %u\n", count[1], tmp); return; } - if (count[3] != rgd->rd_dinodes) { + if (count[2] + count[3] != rgd->rd_dinodes) { if (gfs2_consist_rgrpd(rgd)) fs_err(sdp, "used metadata mismatch: %u != %u\n", - count[3], rgd->rd_dinodes); + count[2] + count[3], rgd->rd_dinodes); return; } - - if (count[2] > count[3]) { - if (gfs2_consist_rgrpd(rgd)) - fs_err(sdp, "unlinked inodes > inodes: %u\n", - count[2]); - return; - } - } static inline int rgrp_contains_block(struct gfs2_rgrpd *rgd, u64 block) -- cgit v1.2.3 From b94a170e96dc416828af9d350ae2e34b70ae7347 Mon Sep 17 00:00:00 2001 From: Benjamin Marzinski Date: Thu, 23 Jul 2009 18:52:34 -0500 Subject: GFS2: remove dcache entries for remote deleted inodes When a file is deleted from a gfs2 filesystem on one node, a dcache entry for it may still exist on other nodes in the cluster. If this happens, gfs2 will be unable to free this file on disk. Because of this, it's possible to have a gfs2 filesystem with no files on it and no free space. With this patch, when a node receives a callback notifying it that the file is being deleted on another node, it schedules a new workqueue thread to remove the file's dcache entry. Signed-off-by: Benjamin Marzinski Signed-off-by: Steven Whitehouse --- fs/gfs2/glock.c | 43 ++++++++++++++++++++++++++++++++++++++----- fs/gfs2/glock.h | 3 +++ fs/gfs2/glops.c | 21 +++++++++++++++++++++ fs/gfs2/incore.h | 2 ++ fs/gfs2/super.c | 1 + 5 files changed, 65 insertions(+), 5 deletions(-) diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index f041a89e1ab..8b674b1f3a5 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -63,6 +63,7 @@ static void do_xmote(struct gfs2_glock *gl, struct gfs2_holder *gh, unsigned int static DECLARE_RWSEM(gfs2_umount_flush_sem); static struct dentry *gfs2_root; static struct workqueue_struct *glock_workqueue; +struct workqueue_struct *gfs2_delete_workqueue; static LIST_HEAD(lru_list); static atomic_t lru_count = ATOMIC_INIT(0); static DEFINE_SPINLOCK(lru_lock); @@ -167,7 +168,7 @@ static void glock_free(struct gfs2_glock *gl) * */ -static void gfs2_glock_hold(struct gfs2_glock *gl) +void gfs2_glock_hold(struct gfs2_glock *gl) { GLOCK_BUG_ON(gl, atomic_read(&gl->gl_ref) == 0); atomic_inc(&gl->gl_ref); @@ -222,7 +223,7 @@ static void gfs2_glock_schedule_for_reclaim(struct gfs2_glock *gl) * to the glock, in addition to the one it is dropping. */ -static void gfs2_glock_put_nolock(struct gfs2_glock *gl) +void gfs2_glock_put_nolock(struct gfs2_glock *gl) { if (atomic_dec_and_test(&gl->gl_ref)) GLOCK_BUG_ON(gl, 1); @@ -679,6 +680,29 @@ out_unlock: goto out; } +static void delete_work_func(struct work_struct *work) +{ + struct gfs2_glock *gl = container_of(work, struct gfs2_glock, gl_delete); + struct gfs2_sbd *sdp = gl->gl_sbd; + struct gfs2_inode *ip = NULL; + struct inode *inode; + u64 no_addr = 0; + + spin_lock(&gl->gl_spin); + ip = (struct gfs2_inode *)gl->gl_object; + if (ip) + no_addr = ip->i_no_addr; + spin_unlock(&gl->gl_spin); + if (ip) { + inode = gfs2_ilookup(sdp->sd_vfs, no_addr); + if (inode) { + d_prune_aliases(inode); + iput(inode); + } + } + gfs2_glock_put(gl); +} + static void glock_work_func(struct work_struct *work) { unsigned long delay = 0; @@ -757,6 +781,7 @@ int gfs2_glock_get(struct gfs2_sbd *sdp, u64 number, gl->gl_sbd = sdp; gl->gl_aspace = NULL; INIT_DELAYED_WORK(&gl->gl_work, glock_work_func); + INIT_WORK(&gl->gl_delete, delete_work_func); /* If this glock protects actual on-disk data or metadata blocks, create a VFS inode to manage the pages/buffers holding them. */ @@ -898,6 +923,8 @@ static void handle_callback(struct gfs2_glock *gl, unsigned int state, gl->gl_demote_state != state) { gl->gl_demote_state = LM_ST_UNLOCKED; } + if (gl->gl_ops->go_callback) + gl->gl_ops->go_callback(gl); trace_gfs2_demote_rq(gl); } @@ -1344,14 +1371,14 @@ static int gfs2_shrink_glock_memory(int nr, gfp_t gfp_mask) spin_unlock(&lru_lock); spin_lock(&gl->gl_spin); may_demote = demote_ok(gl); - spin_unlock(&gl->gl_spin); - clear_bit(GLF_LOCK, &gl->gl_flags); if (may_demote) { handle_callback(gl, LM_ST_UNLOCKED, 0); nr--; } if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0) - gfs2_glock_put(gl); + gfs2_glock_put_nolock(gl); + spin_unlock(&gl->gl_spin); + clear_bit(GLF_LOCK, &gl->gl_flags); spin_lock(&lru_lock); continue; } @@ -1738,6 +1765,11 @@ int __init gfs2_glock_init(void) glock_workqueue = create_workqueue("glock_workqueue"); if (IS_ERR(glock_workqueue)) return PTR_ERR(glock_workqueue); + gfs2_delete_workqueue = create_workqueue("delete_workqueue"); + if (IS_ERR(gfs2_delete_workqueue)) { + destroy_workqueue(glock_workqueue); + return PTR_ERR(gfs2_delete_workqueue); + } register_shrinker(&glock_shrinker); @@ -1748,6 +1780,7 @@ void gfs2_glock_exit(void) { unregister_shrinker(&glock_shrinker); destroy_workqueue(glock_workqueue); + destroy_workqueue(gfs2_delete_workqueue); } static int gfs2_glock_iter_next(struct gfs2_glock_iter *gi) diff --git a/fs/gfs2/glock.h b/fs/gfs2/glock.h index a602a28f6f0..c609894ec0d 100644 --- a/fs/gfs2/glock.h +++ b/fs/gfs2/glock.h @@ -143,6 +143,7 @@ struct lm_lockops { #define GLR_TRYFAILED 13 +extern struct workqueue_struct *gfs2_delete_workqueue; static inline struct gfs2_holder *gfs2_glock_is_locked_by_me(struct gfs2_glock *gl) { struct gfs2_holder *gh; @@ -191,6 +192,8 @@ static inline int gfs2_glock_is_blocking(struct gfs2_glock *gl) int gfs2_glock_get(struct gfs2_sbd *sdp, u64 number, const struct gfs2_glock_operations *glops, int create, struct gfs2_glock **glp); +void gfs2_glock_hold(struct gfs2_glock *gl); +void gfs2_glock_put_nolock(struct gfs2_glock *gl); int gfs2_glock_put(struct gfs2_glock *gl); void gfs2_holder_init(struct gfs2_glock *gl, unsigned int state, unsigned flags, struct gfs2_holder *gh); diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c index d5e4ab155ca..6985eef06c3 100644 --- a/fs/gfs2/glops.c +++ b/fs/gfs2/glops.c @@ -323,6 +323,7 @@ static void trans_go_sync(struct gfs2_glock *gl) if (gl->gl_state != LM_ST_UNLOCKED && test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) { + flush_workqueue(gfs2_delete_workqueue); gfs2_meta_syncfs(sdp); gfs2_log_shutdown(sdp); } @@ -372,6 +373,25 @@ static int trans_go_demote_ok(const struct gfs2_glock *gl) return 0; } +/** + * iopen_go_callback - schedule the dcache entry for the inode to be deleted + * @gl: the glock + * + * gl_spin lock is held while calling this + */ +static void iopen_go_callback(struct gfs2_glock *gl) +{ + struct gfs2_inode *ip = (struct gfs2_inode *)gl->gl_object; + + if (gl->gl_demote_state == LM_ST_UNLOCKED && + gl->gl_state == LM_ST_SHARED && + ip && test_bit(GIF_USER, &ip->i_flags)) { + gfs2_glock_hold(gl); + if (queue_work(gfs2_delete_workqueue, &gl->gl_delete) == 0) + gfs2_glock_put_nolock(gl); + } +} + const struct gfs2_glock_operations gfs2_meta_glops = { .go_type = LM_TYPE_META, }; @@ -406,6 +426,7 @@ const struct gfs2_glock_operations gfs2_trans_glops = { const struct gfs2_glock_operations gfs2_iopen_glops = { .go_type = LM_TYPE_IOPEN, + .go_callback = iopen_go_callback, }; const struct gfs2_glock_operations gfs2_flock_glops = { diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h index 225347fbff3..61801ada36f 100644 --- a/fs/gfs2/incore.h +++ b/fs/gfs2/incore.h @@ -159,6 +159,7 @@ struct gfs2_glock_operations { int (*go_lock) (struct gfs2_holder *gh); void (*go_unlock) (struct gfs2_holder *gh); int (*go_dump)(struct seq_file *seq, const struct gfs2_glock *gl); + void (*go_callback) (struct gfs2_glock *gl); const int go_type; const unsigned long go_min_hold_time; }; @@ -228,6 +229,7 @@ struct gfs2_glock { struct list_head gl_ail_list; atomic_t gl_ail_count; struct delayed_work gl_work; + struct work_struct gl_delete; }; #define GFS2_MIN_LVB_SIZE 32 /* Min size of LVB that gfs2 supports */ diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c index 552e321cee5..f522bb01797 100644 --- a/fs/gfs2/super.c +++ b/fs/gfs2/super.c @@ -691,6 +691,7 @@ static int gfs2_make_fs_ro(struct gfs2_sbd *sdp) struct gfs2_holder t_gh; int error; + flush_workqueue(gfs2_delete_workqueue); gfs2_quota_sync(sdp); gfs2_statfs_sync(sdp); -- cgit v1.2.3 From 276e680d192a67d222fcea51af37b056feffb665 Mon Sep 17 00:00:00 2001 From: Yan Zheng Date: Thu, 30 Jul 2009 09:40:40 -0400 Subject: Btrfs: preserve commit_root for async caching The async block group caching code uses the commit_root pointer to get a stable version of the extent allocation tree for scanning. This copy of the tree root isn't going to change and it significantly reduces the complexity of the scanning code. During a commit, we have a loop where we update the extent allocation tree root. We need to loop because updating the root pointer in the tree of tree roots may allocate blocks which may change the extent allocation tree. Right now the commit_root pointer is changed inside this loop. It is more correct to change the commit_root pointer only after all the looping is done. Signed-off-by: Yan Zheng Signed-off-by: Chris Mason --- fs/btrfs/ctree.h | 4 +--- fs/btrfs/disk-io.c | 2 +- fs/btrfs/extent-tree.c | 6 +++--- fs/btrfs/transaction.c | 12 +++++++++--- 4 files changed, 14 insertions(+), 10 deletions(-) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 17ad92c29cf..38eeb6c49c8 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -827,6 +827,7 @@ struct btrfs_fs_info { struct mutex drop_mutex; struct mutex volume_mutex; struct mutex tree_reloc_mutex; + struct rw_semaphore extent_commit_sem; /* * this protects the ordered operations list only while we are @@ -961,9 +962,6 @@ struct btrfs_root { /* the node lock is held while changing the node pointer */ spinlock_t node_lock; - /* taken when updating the commit root */ - struct rw_semaphore commit_root_sem; - struct extent_buffer *commit_root; struct btrfs_root *log_root; struct btrfs_root *reloc_root; diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 3a9b8875988..3cf4cfa575c 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -907,7 +907,6 @@ static int __setup_root(u32 nodesize, u32 leafsize, u32 sectorsize, spin_lock_init(&root->inode_lock); mutex_init(&root->objectid_mutex); mutex_init(&root->log_mutex); - init_rwsem(&root->commit_root_sem); init_waitqueue_head(&root->log_writer_wait); init_waitqueue_head(&root->log_commit_wait[0]); init_waitqueue_head(&root->log_commit_wait[1]); @@ -1624,6 +1623,7 @@ struct btrfs_root *open_ctree(struct super_block *sb, mutex_init(&fs_info->cleaner_mutex); mutex_init(&fs_info->volume_mutex); mutex_init(&fs_info->tree_reloc_mutex); + init_rwsem(&fs_info->extent_commit_sem); btrfs_init_free_cluster(&fs_info->meta_alloc_cluster); btrfs_init_free_cluster(&fs_info->data_alloc_cluster); diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index fadf69a2764..2fe21fa7491 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -267,7 +267,7 @@ static int caching_kthread(void *data) last = max_t(u64, block_group->key.objectid, BTRFS_SUPER_INFO_OFFSET); again: /* need to make sure the commit_root doesn't disappear */ - down_read(&fs_info->extent_root->commit_root_sem); + down_read(&fs_info->extent_commit_sem); /* * We don't want to deadlock with somebody trying to allocate a new @@ -304,7 +304,7 @@ again: if (need_resched()) { btrfs_release_path(fs_info->extent_root, path); - up_read(&fs_info->extent_root->commit_root_sem); + up_read(&fs_info->extent_commit_sem); cond_resched(); goto again; } @@ -345,7 +345,7 @@ next: err: btrfs_free_path(path); - up_read(&fs_info->extent_root->commit_root_sem); + up_read(&fs_info->extent_commit_sem); atomic_dec(&block_group->space_info->caching_threads); wake_up(&block_group->caching_q); diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index e51d2bc532f..de48e4ec808 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -42,10 +42,8 @@ static noinline void put_transaction(struct btrfs_transaction *transaction) static noinline void switch_commit_root(struct btrfs_root *root) { - down_write(&root->commit_root_sem); free_extent_buffer(root->commit_root); root->commit_root = btrfs_root_node(root); - up_write(&root->commit_root_sem); } /* @@ -466,7 +464,10 @@ static int update_cowonly_root(struct btrfs_trans_handle *trans, ret = btrfs_write_dirty_block_groups(trans, root); BUG_ON(ret); } - switch_commit_root(root); + + if (root != root->fs_info->extent_root) + switch_commit_root(root); + return 0; } @@ -499,6 +500,11 @@ static noinline int commit_cowonly_roots(struct btrfs_trans_handle *trans, update_cowonly_root(trans, root); } + + down_write(&fs_info->extent_commit_sem); + switch_commit_root(fs_info->extent_root); + up_write(&fs_info->extent_commit_sem); + return 0; } -- cgit v1.2.3 From dfb3cf00e402686f671db697adbd8b9f4c219268 Mon Sep 17 00:00:00 2001 From: Swen Schillig Date: Mon, 13 Jul 2009 15:06:02 +0200 Subject: [SCSI] zfcp: Fix invalid command order We should not modify the port status after triggering an ERP action for the port. It is not guaranteed which status is finally active when the ERP action is performed. This can lead to situations which are unwanted and hard to debug in case of a failure. Signed-off-by: Swen Schillig Signed-off-by: Christof Schmitt Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_fsf.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index c57658f3d34..bbb7ef0b052 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -1731,15 +1731,16 @@ static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req) zfcp_fsf_access_denied_port(req, port); break; case FSF_PORT_BOXED: - zfcp_erp_port_boxed(port, "fscpph2", req); - req->status |= ZFCP_STATUS_FSFREQ_ERROR | - ZFCP_STATUS_FSFREQ_RETRY; /* can't use generic zfcp_erp_modify_port_status because * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */ atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); list_for_each_entry(unit, &port->unit_list_head, list) atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); + zfcp_erp_port_boxed(port, "fscpph2", req); + req->status |= ZFCP_STATUS_FSFREQ_ERROR | + ZFCP_STATUS_FSFREQ_RETRY; + break; case FSF_ADAPTER_STATUS_AVAILABLE: switch (header->fsf_status_qual.word[0]) { -- cgit v1.2.3 From acf7b86150701de105aa8307b4b3f9dc533c45bb Mon Sep 17 00:00:00 2001 From: Christof Schmitt Date: Mon, 13 Jul 2009 15:06:03 +0200 Subject: [SCSI] zfcp: Acquire qdio_stat_lock when reading the queue utilization req_q_util is not atomic, so the qdio_stat_lock must be held when reading this variable. Reviewed-by: Swen Schillig Signed-off-by: Christof Schmitt Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_sysfs.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/s390/scsi/zfcp_sysfs.c b/drivers/s390/scsi/zfcp_sysfs.c index 3e51e64d110..0fe5cce818c 100644 --- a/drivers/s390/scsi/zfcp_sysfs.c +++ b/drivers/s390/scsi/zfcp_sysfs.c @@ -494,9 +494,14 @@ static ssize_t zfcp_sysfs_adapter_q_full_show(struct device *dev, struct Scsi_Host *scsi_host = class_to_shost(dev); struct zfcp_adapter *adapter = (struct zfcp_adapter *) scsi_host->hostdata[0]; + u64 util; + + spin_lock_bh(&adapter->qdio_stat_lock); + util = adapter->req_q_util; + spin_unlock_bh(&adapter->qdio_stat_lock); return sprintf(buf, "%d %llu\n", atomic_read(&adapter->qdio_outb_full), - (unsigned long long)adapter->req_q_util); + (unsigned long long)util); } static DEVICE_ATTR(queue_full, S_IRUGO, zfcp_sysfs_adapter_q_full_show, NULL); -- cgit v1.2.3 From 1e9b16430ff4fd09408a74342d6b8338228e2f70 Mon Sep 17 00:00:00 2001 From: Christof Schmitt Date: Mon, 13 Jul 2009 15:06:04 +0200 Subject: [SCSI] zfcp: Return -ENOMEM for allocation failures in zfcp_fsf When a fsf_req or a qtcb cannot be allocated return -ENOMEM instead of -EIO. Reviewed-by: Swen Schillig Signed-off-by: Christof Schmitt Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_fsf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index bbb7ef0b052..c4eb62b32a3 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -722,7 +722,7 @@ static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_adapter *adapter, req = zfcp_fsf_alloc_qtcb(pool); if (unlikely(!req)) - return ERR_PTR(-EIO); + return ERR_PTR(-ENOMEM); if (adapter->req_no == 0) adapter->req_no++; -- cgit v1.2.3 From 688a1820bde27749f22b18b94ef1c9bc179b1b29 Mon Sep 17 00:00:00 2001 From: Christof Schmitt Date: Mon, 13 Jul 2009 15:06:05 +0200 Subject: [SCSI] zfcp: Use correct flags for zfcp_erp_notify zfcp_erp_notify uses the ZFCP_ERP_STATUS_* flags, so it is ZFCP_STATUS_ERP_LOWMEM instead of ZFCP_ERP_NOMEM. Signalling ZFCP_ERP_FAILED is not necessary, the missing d_id will show that the nameserver did not return the d_id. Reviewed-by: Swen Schillig Signed-off-by: Christof Schmitt Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_erp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index 8030e25152f..e7d7ef55e37 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -854,10 +854,10 @@ void zfcp_erp_port_strategy_open_lookup(struct work_struct *work) retval = zfcp_fc_ns_gid_pn(&port->erp_action); if (retval == -ENOMEM) - zfcp_erp_notify(&port->erp_action, ZFCP_ERP_NOMEM); + zfcp_erp_notify(&port->erp_action, ZFCP_STATUS_ERP_LOWMEM); port->erp_action.step = ZFCP_ERP_STEP_NAMESERVER_LOOKUP; if (retval) - zfcp_erp_notify(&port->erp_action, ZFCP_ERP_FAILED); + zfcp_erp_notify(&port->erp_action, 0); zfcp_port_put(port); } -- cgit v1.2.3 From 426f6059b0eb66cec139f4b9066168ab72b85774 Mon Sep 17 00:00:00 2001 From: Christof Schmitt Date: Mon, 13 Jul 2009 15:06:06 +0200 Subject: [SCSI] zfcp: Use unchained mode for small ct and els requests The ELS ADISC and the GID_PN requests sent from zfcp fit into unchained FSF requests. Change the FSF allocation logic to use unchained requests whenever possible where everything fits in one SBAL. This avoids acquiring more SBALs than necessary, especially during zfcp recovery when things might be stalled. Reviewed-by: Swen Schillig Signed-off-by: Christof Schmitt Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_fsf.c | 33 +++++++++++++++++++++++++-------- 1 file changed, 25 insertions(+), 8 deletions(-) diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index c4eb62b32a3..bec912547fb 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -1010,6 +1010,23 @@ skip_fsfstatus: send_ct->handler(send_ct->handler_data); } +static void zfcp_fsf_setup_ct_els_unchained(struct qdio_buffer_element *sbale, + struct scatterlist *sg_req, + struct scatterlist *sg_resp) +{ + sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE_READ; + sbale[2].addr = sg_virt(sg_req); + sbale[2].length = sg_req->length; + sbale[3].addr = sg_virt(sg_resp); + sbale[3].length = sg_resp->length; + sbale[3].flags |= SBAL_FLAGS_LAST_ENTRY; +} + +static int zfcp_fsf_one_sbal(struct scatterlist *sg) +{ + return sg_is_last(sg) && sg->length <= PAGE_SIZE; +} + static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req, struct scatterlist *sg_req, struct scatterlist *sg_resp, @@ -1020,16 +1037,16 @@ static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req, int bytes; if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) { - if (sg_req->length > PAGE_SIZE || sg_resp->length > PAGE_SIZE || - !sg_is_last(sg_req) || !sg_is_last(sg_resp)) + if (!zfcp_fsf_one_sbal(sg_req) || !zfcp_fsf_one_sbal(sg_resp)) return -EOPNOTSUPP; - sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE_READ; - sbale[2].addr = sg_virt(sg_req); - sbale[2].length = sg_req->length; - sbale[3].addr = sg_virt(sg_resp); - sbale[3].length = sg_resp->length; - sbale[3].flags |= SBAL_FLAGS_LAST_ENTRY; + zfcp_fsf_setup_ct_els_unchained(sbale, sg_req, sg_resp); + return 0; + } + + /* use single, unchained SBAL if it can hold the request */ + if (zfcp_fsf_one_sbal(sg_req) && zfcp_fsf_one_sbal(sg_resp)) { + zfcp_fsf_setup_ct_els_unchained(sbale, sg_req, sg_resp); return 0; } -- cgit v1.2.3 From 9072df4dc6e8fd569d583815edb0198af4b688b8 Mon Sep 17 00:00:00 2001 From: Christof Schmitt Date: Mon, 13 Jul 2009 15:06:07 +0200 Subject: [SCSI] zfcp: Use -EIO for SBAL allocation failures -ENOMEM is for memory allocation problems, -EIO for queue/SBAL allocation problems. Reviewed-by: Swen Schillig Signed-off-by: Christof Schmitt Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_fsf.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index bec912547fb..0c24695a53c 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -1053,14 +1053,14 @@ static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req, bytes = zfcp_qdio_sbals_from_sg(req, SBAL_FLAGS0_TYPE_WRITE_READ, sg_req, max_sbals); if (bytes <= 0) - return -ENOMEM; + return -EIO; req->qtcb->bottom.support.req_buf_length = bytes; req->sbale_curr = ZFCP_LAST_SBALE_PER_SBAL; bytes = zfcp_qdio_sbals_from_sg(req, SBAL_FLAGS0_TYPE_WRITE_READ, sg_resp, max_sbals); if (bytes <= 0) - return -ENOMEM; + return -EIO; req->qtcb->bottom.support.resp_buf_length = bytes; return 0; @@ -2559,7 +2559,6 @@ struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, bytes = zfcp_qdio_sbals_from_sg(req, direction, fsf_cfdc->sg, FSF_MAX_SBALS_PER_REQ); if (bytes != ZFCP_CFDC_MAX_SIZE) { - retval = -ENOMEM; zfcp_fsf_req_free(req); goto out; } -- cgit v1.2.3 From ddb3e0c111fed0a8bf74884dc918274acec2b618 Mon Sep 17 00:00:00 2001 From: Christof Schmitt Date: Mon, 13 Jul 2009 15:06:08 +0200 Subject: [SCSI] zfcp: Fix logic for physical port close After closing the port, we want it to be "not open" to consider the action to be successful. Reviewed-by: Swen Schillig Signed-off-by: Christof Schmitt Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_erp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index e7d7ef55e37..0a7c6aef532 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -801,7 +801,7 @@ static int zfcp_erp_port_forced_strategy(struct zfcp_erp_action *erp_action) return ZFCP_ERP_FAILED; case ZFCP_ERP_STEP_PHYS_PORT_CLOSING: - if (status & ZFCP_STATUS_PORT_PHYS_OPEN) + if (!(status & ZFCP_STATUS_PORT_PHYS_OPEN)) return ZFCP_ERP_SUCCEEDED; } return ZFCP_ERP_FAILED; -- cgit v1.2.3 From 85600f7f8370fe5b4be0debd8b401de7986b52ae Mon Sep 17 00:00:00 2001 From: Christof Schmitt Date: Mon, 13 Jul 2009 15:06:09 +0200 Subject: [SCSI] zfcp: Fix erp escalation procedure If an action fails, retry it until the erp count exceeds the threshold. If there is something fundamentally wrong, the FSF layer will trigger a more appropriate action depending on the FSF status codes. The followup for successful actions is a different followup than retrying failed actions, so split the code two functions to make this clear. Reviewed-by: Swen Schillig Signed-off-by: Christof Schmitt Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_erp.c | 50 +++++++++++++++++++++----------------------- 1 file changed, 24 insertions(+), 26 deletions(-) diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index 0a7c6aef532..b5562f95265 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -553,40 +553,35 @@ static void _zfcp_erp_unit_reopen_all(struct zfcp_port *port, int clear, _zfcp_erp_unit_reopen(unit, clear, id, ref); } -static void zfcp_erp_strategy_followup_actions(struct zfcp_erp_action *act) +static void zfcp_erp_strategy_followup_failed(struct zfcp_erp_action *act) { - struct zfcp_adapter *adapter = act->adapter; - struct zfcp_port *port = act->port; - struct zfcp_unit *unit = act->unit; - u32 status = act->status; - - /* initiate follow-up actions depending on success of finished action */ switch (act->action) { - case ZFCP_ERP_ACTION_REOPEN_ADAPTER: - if (status == ZFCP_ERP_SUCCEEDED) - _zfcp_erp_port_reopen_all(adapter, 0, "ersfa_1", NULL); - else - _zfcp_erp_adapter_reopen(adapter, 0, "ersfa_2", NULL); + _zfcp_erp_adapter_reopen(act->adapter, 0, "ersff_1", NULL); break; - case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED: - if (status == ZFCP_ERP_SUCCEEDED) - _zfcp_erp_port_reopen(port, 0, "ersfa_3", NULL); - else - _zfcp_erp_adapter_reopen(adapter, 0, "ersfa_4", NULL); + _zfcp_erp_port_forced_reopen(act->port, 0, "ersff_2", NULL); break; - case ZFCP_ERP_ACTION_REOPEN_PORT: - if (status == ZFCP_ERP_SUCCEEDED) - _zfcp_erp_unit_reopen_all(port, 0, "ersfa_5", NULL); - else - _zfcp_erp_port_forced_reopen(port, 0, "ersfa_6", NULL); + _zfcp_erp_port_reopen(act->port, 0, "ersff_3", NULL); break; - case ZFCP_ERP_ACTION_REOPEN_UNIT: - if (status != ZFCP_ERP_SUCCEEDED) - _zfcp_erp_port_reopen(unit->port, 0, "ersfa_7", NULL); + _zfcp_erp_unit_reopen(act->unit, 0, "ersff_4", NULL); + break; + } +} + +static void zfcp_erp_strategy_followup_success(struct zfcp_erp_action *act) +{ + switch (act->action) { + case ZFCP_ERP_ACTION_REOPEN_ADAPTER: + _zfcp_erp_port_reopen_all(act->adapter, 0, "ersfs_1", NULL); + break; + case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED: + _zfcp_erp_port_reopen(act->port, 0, "ersfs_2", NULL); + break; + case ZFCP_ERP_ACTION_REOPEN_PORT: + _zfcp_erp_unit_reopen_all(act->port, 0, "ersfs_3", NULL); break; } } @@ -1289,7 +1284,10 @@ static int zfcp_erp_strategy(struct zfcp_erp_action *erp_action) retval = zfcp_erp_strategy_statechange(erp_action, retval); if (retval == ZFCP_ERP_EXIT) goto unlock; - zfcp_erp_strategy_followup_actions(erp_action); + if (retval == ZFCP_ERP_SUCCEEDED) + zfcp_erp_strategy_followup_success(erp_action); + if (retval == ZFCP_ERP_FAILED) + zfcp_erp_strategy_followup_failed(erp_action); unlock: write_unlock(&adapter->erp_lock); -- cgit v1.2.3 From cbf1ed0264da104573458aedc220ebfcd02567f6 Mon Sep 17 00:00:00 2001 From: Christof Schmitt Date: Mon, 13 Jul 2009 15:06:10 +0200 Subject: [SCSI] zfcp: Recover from stalled outbound queue Depending on interruptions on some storage systems, the complete channel can stall which looks like an outbound queue stall to Linux. When trying to acquire a free SBAL for a non-SCSI command, zfcp waits for 5 seconds for a free slot to appear. This is the right place to detect a queue stall: If the wait times out, we assume a stalled queue and try to recover this. The overall strategy should be to trigger the erp from specific events, and not try an overall escalation from one failed port to a full-blown queue recovery. If we manage to send a command, the status codes for this command or a timeout will trigger the right follow-on actions. Reviewed-by: Swen Schillig Signed-off-by: Christof Schmitt Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_fsf.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index 0c24695a53c..b7e48844056 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -670,8 +670,11 @@ static int zfcp_fsf_req_sbal_get(struct zfcp_adapter *adapter) zfcp_fsf_sbal_check(adapter), 5 * HZ); if (ret > 0) return 0; - if (!ret) + if (!ret) { atomic_inc(&adapter->qdio_outb_full); + /* assume hanging outbound queue, try queue recovery */ + zfcp_erp_adapter_reopen(adapter, 0, "fsrsg_1", NULL); + } spin_lock_bh(&adapter->req_q_lock); return -EIO; -- cgit v1.2.3 From 379d6bf6573ee6541a38bbe9140c1f0b94e3feae Mon Sep 17 00:00:00 2001 From: Christof Schmitt Date: Mon, 13 Jul 2009 15:06:11 +0200 Subject: [SCSI] zfcp: Add port only once to FC transport class When calling fc_remote_port_add make sure to not call it again before fc_remote_port_delete has been called. In other words, ensure to create a new fc_rport, then delete it, then create a new one again. Reviewed-by: Swen Schillig Signed-off-by: Christof Schmitt Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_scsi.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index 967ede73f4c..ba32709921a 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -534,6 +534,9 @@ static void zfcp_scsi_rport_register(struct zfcp_port *port) struct fc_rport_identifiers ids; struct fc_rport *rport; + if (port->rport) + return; + ids.node_name = port->wwnn; ids.port_name = port->wwpn; ids.port_id = port->d_id; @@ -557,8 +560,10 @@ static void zfcp_scsi_rport_block(struct zfcp_port *port) { struct fc_rport *rport = port->rport; - if (rport) + if (rport) { fc_remote_port_delete(rport); + port->rport = NULL; + } } void zfcp_scsi_schedule_rport_register(struct zfcp_port *port) -- cgit v1.2.3 From 17a093ef018481ee1760da19568bad3c11da395d Mon Sep 17 00:00:00 2001 From: Swen Schillig Date: Mon, 13 Jul 2009 15:06:12 +0200 Subject: [SCSI] zfcp: avoid double notify in lowmem scenario In a LOWMEM condition an ERP notification would have been sent twice causing an unpredictable behaviour of the ERP. Signed-off-by: Swen Schillig Signed-off-by: Christof Schmitt Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_erp.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index b5562f95265..c75d6f35cb5 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -848,11 +848,17 @@ void zfcp_erp_port_strategy_open_lookup(struct work_struct *work) gid_pn_work); retval = zfcp_fc_ns_gid_pn(&port->erp_action); - if (retval == -ENOMEM) + if (!retval) { + port->erp_action.step = ZFCP_ERP_STEP_NAMESERVER_LOOKUP; + goto out; + } + if (retval == -ENOMEM) { zfcp_erp_notify(&port->erp_action, ZFCP_STATUS_ERP_LOWMEM); - port->erp_action.step = ZFCP_ERP_STEP_NAMESERVER_LOOKUP; - if (retval) - zfcp_erp_notify(&port->erp_action, 0); + goto out; + } + /* all other error condtions */ + zfcp_erp_notify(&port->erp_action, 0); +out: zfcp_port_put(port); } -- cgit v1.2.3 From 27f492ccec94b6acd8440c83bfe0515ce4db0af0 Mon Sep 17 00:00:00 2001 From: Swen Schillig Date: Mon, 13 Jul 2009 15:06:13 +0200 Subject: [SCSI] zfcp: Fix wka port processing Under certain conditions it is possible that a WKA port ist not opened within the expected timeframe of half a second. In this situation the WKA port remains in the state OPENING preventing any succeding request to open the port. This led to unrecoverable remote ports. Fixing this by always setting an appropriate WKA port status before leaving the function and removing the timeout value here since it's not needed here because the general timeout processing would deal with it if required. Signed-off-by: Swen Schillig Signed-off-by: Christof Schmitt Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_fc.c | 8 +++----- drivers/s390/scsi/zfcp_fsf.c | 4 ++-- 2 files changed, 5 insertions(+), 7 deletions(-) diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c index 2f0705d76b7..47daebfa7e5 100644 --- a/drivers/s390/scsi/zfcp_fc.c +++ b/drivers/s390/scsi/zfcp_fc.c @@ -79,11 +79,9 @@ static int zfcp_wka_port_get(struct zfcp_wka_port *wka_port) mutex_unlock(&wka_port->mutex); - wait_event_timeout( - wka_port->completion_wq, - wka_port->status == ZFCP_WKA_PORT_ONLINE || - wka_port->status == ZFCP_WKA_PORT_OFFLINE, - HZ >> 1); + wait_event(wka_port->completion_wq, + wka_port->status == ZFCP_WKA_PORT_ONLINE || + wka_port->status == ZFCP_WKA_PORT_OFFLINE); if (wka_port->status == ZFCP_WKA_PORT_ONLINE) { atomic_inc(&wka_port->refcount); diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index b7e48844056..47795fbf081 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -1627,10 +1627,10 @@ static void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req) case FSF_ACCESS_DENIED: wka_port->status = ZFCP_WKA_PORT_OFFLINE; break; - case FSF_PORT_ALREADY_OPEN: - break; case FSF_GOOD: wka_port->handle = header->port_handle; + /* fall through */ + case FSF_PORT_ALREADY_OPEN: wka_port->status = ZFCP_WKA_PORT_ONLINE; } out: -- cgit v1.2.3 From a11a52be115889a5d1f738ed2e154807bceed4ee Mon Sep 17 00:00:00 2001 From: Christof Schmitt Date: Mon, 13 Jul 2009 15:06:14 +0200 Subject: [SCSI] zfcp: Fix tracing of request id for abort requests The trace record for SCSI abort requests has a field for the request id of the request to be aborted. Put the real request id instead of zero. Reviewed-by: Swen Schillig Signed-off-by: Christof Schmitt Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_scsi.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index ba32709921a..6925a178468 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -167,20 +167,21 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt) struct zfcp_unit *unit = scpnt->device->hostdata; struct zfcp_fsf_req *old_req, *abrt_req; unsigned long flags; - unsigned long old_req_id = (unsigned long) scpnt->host_scribble; + unsigned long old_reqid = (unsigned long) scpnt->host_scribble; int retval = SUCCESS; int retry = 3; + char *dbf_tag; /* avoid race condition between late normal completion and abort */ write_lock_irqsave(&adapter->abort_lock, flags); spin_lock(&adapter->req_list_lock); - old_req = zfcp_reqlist_find(adapter, old_req_id); + old_req = zfcp_reqlist_find(adapter, old_reqid); spin_unlock(&adapter->req_list_lock); if (!old_req) { write_unlock_irqrestore(&adapter->abort_lock, flags); zfcp_scsi_dbf_event_abort("lte1", adapter, scpnt, NULL, - old_req_id); + old_reqid); return FAILED; /* completion could be in progress */ } old_req->data = NULL; @@ -189,7 +190,7 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt) write_unlock_irqrestore(&adapter->abort_lock, flags); while (retry--) { - abrt_req = zfcp_fsf_abort_fcp_command(old_req_id, unit); + abrt_req = zfcp_fsf_abort_fcp_command(old_reqid, unit); if (abrt_req) break; @@ -197,7 +198,7 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt) if (!(atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_RUNNING)) { zfcp_scsi_dbf_event_abort("nres", adapter, scpnt, NULL, - old_req_id); + old_reqid); return SUCCESS; } } @@ -208,13 +209,14 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt) abrt_req->status & ZFCP_STATUS_FSFREQ_COMPLETED); if (abrt_req->status & ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED) - zfcp_scsi_dbf_event_abort("okay", adapter, scpnt, abrt_req, 0); + dbf_tag = "okay"; else if (abrt_req->status & ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED) - zfcp_scsi_dbf_event_abort("lte2", adapter, scpnt, abrt_req, 0); + dbf_tag = "lte2"; else { - zfcp_scsi_dbf_event_abort("fail", adapter, scpnt, abrt_req, 0); + dbf_tag = "fail"; retval = FAILED; } + zfcp_scsi_dbf_event_abort(dbf_tag, adapter, scpnt, abrt_req, old_reqid); zfcp_fsf_req_free(abrt_req); return retval; } -- cgit v1.2.3 From 6187c242089d334102be76427a5a020240e6c19a Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Wed, 15 Jul 2009 15:02:57 -0500 Subject: [SCSI] libiscsi: disable bh in and abort handler. The session lock can be held in the scsi eh thread or the completion paths run from the net softirq. This disables bhs in iscsi_eh_abort when taking the session lock. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/libiscsi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 716cc344c5d..a751f6230c2 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -1974,10 +1974,10 @@ int iscsi_eh_abort(struct scsi_cmnd *sc) * good and have never sent us a successful tmf response * then sent more data for the cmd. */ - spin_lock(&session->lock); + spin_lock_bh(&session->lock); fail_scsi_task(task, DID_ABORT); conn->tmf_state = TMF_INITIAL; - spin_unlock(&session->lock); + spin_unlock_bh(&session->lock); iscsi_start_tx(conn); goto success_unlocked; case TMF_TIMEDOUT: -- cgit v1.2.3 From 94bced3c1b371014cbd187f2df5539b13a0e3b90 Mon Sep 17 00:00:00 2001 From: Karen Higgins Date: Wed, 15 Jul 2009 15:02:58 -0500 Subject: [SCSI] qla4xxx: Correct Extended Sense Data Errors Fixed sense data errors occurring above the first 32 bytes, as required by some third party applications. Sense data in the first 32 bytes has always been correct. Patch updated to use srb data variables instead of scsi command scratchpad data area, as scratchpad area is already used. Also, corrected debug print alignment bug in dump_buffer routine. Changed KERN_DEBUG to KERN_INFO in printk statements in this routine. Changed version number to 5.01.00-k9 Signed-off-by: Karen Higgins [michaelc: fixed checkpath.pl errors] Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/qla4xxx/ql4_dbg.c | 15 ++-- drivers/scsi/qla4xxx/ql4_def.h | 7 ++ drivers/scsi/qla4xxx/ql4_fw.h | 7 ++ drivers/scsi/qla4xxx/ql4_isr.c | 145 +++++++++++++++++++++++++------------ drivers/scsi/qla4xxx/ql4_version.h | 2 +- 5 files changed, 122 insertions(+), 54 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_dbg.c b/drivers/scsi/qla4xxx/ql4_dbg.c index fcc184cd066..cbceb0ebabf 100644 --- a/drivers/scsi/qla4xxx/ql4_dbg.c +++ b/drivers/scsi/qla4xxx/ql4_dbg.c @@ -15,19 +15,18 @@ void qla4xxx_dump_buffer(void *b, uint32_t size) uint32_t cnt; uint8_t *c = b; - printk(" 0 1 2 3 4 5 6 7 8 9 Ah Bh Ch Dh Eh " + printk(" 0 1 2 3 4 5 6 7 8 9 Ah Bh Ch Dh Eh " "Fh\n"); printk("------------------------------------------------------------" "--\n"); - for (cnt = 0; cnt < size; cnt++, c++) { - printk(KERN_DEBUG "%02x", *c); - if (!(cnt % 16)) - printk(KERN_DEBUG "\n"); + for (cnt = 0; cnt < size; c++) { + printk(KERN_INFO "%02x", *c); + if (!(++cnt % 16)) + printk(KERN_INFO "\n"); else - printk(KERN_DEBUG " "); + printk(KERN_INFO " "); } - if (cnt % 16) - printk(KERN_DEBUG "\n"); + printk(KERN_INFO "\n"); } diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h index b586f27c3bd..963e8553d21 100644 --- a/drivers/scsi/qla4xxx/ql4_def.h +++ b/drivers/scsi/qla4xxx/ql4_def.h @@ -184,6 +184,11 @@ struct srb { uint16_t cc_stat; u_long r_start; /* Time we recieve a cmd from OS */ u_long u_start; /* Time when we handed the cmd to F/W */ + + /* Used for extended sense / status continuation */ + uint8_t *req_sense_ptr; + uint16_t req_sense_len; + uint16_t reserved2; }; /* @@ -436,6 +441,8 @@ struct scsi_qla_host { /* Map ddb_list entry by FW ddb index */ struct ddb_entry *fw_ddb_index_map[MAX_DDB_ENTRIES]; + /* Saved srb for status continuation entry processing */ + struct srb *status_srb; }; static inline int is_qla4010(struct scsi_qla_host *ha) diff --git a/drivers/scsi/qla4xxx/ql4_fw.h b/drivers/scsi/qla4xxx/ql4_fw.h index 1b667a70cff..9cd7a608df3 100644 --- a/drivers/scsi/qla4xxx/ql4_fw.h +++ b/drivers/scsi/qla4xxx/ql4_fw.h @@ -572,6 +572,7 @@ struct conn_event_log_entry { *************************************************************************/ #define IOCB_MAX_CDB_LEN 16 /* Bytes in a CBD */ #define IOCB_MAX_SENSEDATA_LEN 32 /* Bytes of sense data */ +#define IOCB_MAX_EXT_SENSEDATA_LEN 60 /* Bytes of extended sense data */ /* IOCB header structure */ struct qla4_header { @@ -733,6 +734,12 @@ struct status_entry { }; +/* Status Continuation entry */ +struct status_cont_entry { + struct qla4_header hdr; /* 00-03 */ + uint8_t ext_sense_data[IOCB_MAX_EXT_SENSEDATA_LEN]; /* 04-63 */ +}; + struct passthru0 { struct qla4_header hdr; /* 00-03 */ uint32_t handle; /* 04-07 */ diff --git a/drivers/scsi/qla4xxx/ql4_isr.c b/drivers/scsi/qla4xxx/ql4_isr.c index 799120fcb9b..8025ee16588 100644 --- a/drivers/scsi/qla4xxx/ql4_isr.c +++ b/drivers/scsi/qla4xxx/ql4_isr.c @@ -10,6 +10,98 @@ #include "ql4_dbg.h" #include "ql4_inline.h" +/** + * qla4xxx_copy_sense - copy sense data into cmd sense buffer + * @ha: Pointer to host adapter structure. + * @sts_entry: Pointer to status entry structure. + * @srb: Pointer to srb structure. + **/ +static void qla4xxx_copy_sense(struct scsi_qla_host *ha, + struct status_entry *sts_entry, + struct srb *srb) +{ + struct scsi_cmnd *cmd = srb->cmd; + uint16_t sense_len; + + memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); + sense_len = le16_to_cpu(sts_entry->senseDataByteCnt); + if (sense_len == 0) + return; + + /* Save total available sense length, + * not to exceed cmd's sense buffer size */ + sense_len = min_t(uint16_t, sense_len, SCSI_SENSE_BUFFERSIZE); + srb->req_sense_ptr = cmd->sense_buffer; + srb->req_sense_len = sense_len; + + /* Copy sense from sts_entry pkt */ + sense_len = min_t(uint16_t, sense_len, IOCB_MAX_SENSEDATA_LEN); + memcpy(cmd->sense_buffer, sts_entry->senseData, sense_len); + + DEBUG2(printk(KERN_INFO "scsi%ld:%d:%d:%d: %s: sense key = %x, " + "ASL= %02x, ASC/ASCQ = %02x/%02x\n", ha->host_no, + cmd->device->channel, cmd->device->id, + cmd->device->lun, __func__, + sts_entry->senseData[2] & 0x0f, + sts_entry->senseData[7], + sts_entry->senseData[12], + sts_entry->senseData[13])); + + DEBUG5(qla4xxx_dump_buffer(cmd->sense_buffer, sense_len)); + srb->flags |= SRB_GOT_SENSE; + + /* Update srb, in case a sts_cont pkt follows */ + srb->req_sense_ptr += sense_len; + srb->req_sense_len -= sense_len; + if (srb->req_sense_len != 0) + ha->status_srb = srb; + else + ha->status_srb = NULL; +} + +/** + * qla4xxx_status_cont_entry - Process a Status Continuations entry. + * @ha: SCSI driver HA context + * @sts_cont: Entry pointer + * + * Extended sense data. + */ +static void +qla4xxx_status_cont_entry(struct scsi_qla_host *ha, + struct status_cont_entry *sts_cont) +{ + struct srb *srb = ha->status_srb; + struct scsi_cmnd *cmd; + uint8_t sense_len; + + if (srb == NULL) + return; + + cmd = srb->cmd; + if (cmd == NULL) { + DEBUG2(printk(KERN_INFO "scsi%ld: %s: Cmd already returned " + "back to OS srb=%p srb->state:%d\n", ha->host_no, + __func__, srb, srb->state)); + ha->status_srb = NULL; + return; + } + + /* Copy sense data. */ + sense_len = min_t(uint16_t, srb->req_sense_len, + IOCB_MAX_EXT_SENSEDATA_LEN); + memcpy(srb->req_sense_ptr, sts_cont->ext_sense_data, sense_len); + DEBUG5(qla4xxx_dump_buffer(srb->req_sense_ptr, sense_len)); + + srb->req_sense_ptr += sense_len; + srb->req_sense_len -= sense_len; + + /* Place command on done queue. */ + if (srb->req_sense_len == 0) { + qla4xxx_srb_compl(ha, srb); + ha->status_srb = NULL; + } +} + /** * qla4xxx_status_entry - processes status IOCBs * @ha: Pointer to host adapter structure. @@ -23,7 +115,6 @@ static void qla4xxx_status_entry(struct scsi_qla_host *ha, struct srb *srb; struct ddb_entry *ddb_entry; uint32_t residual; - uint16_t sensebytecnt; srb = qla4xxx_del_from_active_array(ha, le32_to_cpu(sts_entry->handle)); if (!srb) { @@ -92,24 +183,7 @@ static void qla4xxx_status_entry(struct scsi_qla_host *ha, break; /* Copy Sense Data into sense buffer. */ - memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); - - sensebytecnt = le16_to_cpu(sts_entry->senseDataByteCnt); - if (sensebytecnt == 0) - break; - - memcpy(cmd->sense_buffer, sts_entry->senseData, - min_t(uint16_t, sensebytecnt, SCSI_SENSE_BUFFERSIZE)); - - DEBUG2(printk("scsi%ld:%d:%d:%d: %s: sense key = %x, " - "ASC/ASCQ = %02x/%02x\n", ha->host_no, - cmd->device->channel, cmd->device->id, - cmd->device->lun, __func__, - sts_entry->senseData[2] & 0x0f, - sts_entry->senseData[12], - sts_entry->senseData[13])); - - srb->flags |= SRB_GOT_SENSE; + qla4xxx_copy_sense(ha, sts_entry, srb); break; case SCS_INCOMPLETE: @@ -176,23 +250,7 @@ static void qla4xxx_status_entry(struct scsi_qla_host *ha, break; /* Copy Sense Data into sense buffer. */ - memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); - - sensebytecnt = - le16_to_cpu(sts_entry->senseDataByteCnt); - if (sensebytecnt == 0) - break; - - memcpy(cmd->sense_buffer, sts_entry->senseData, - min_t(uint16_t, sensebytecnt, SCSI_SENSE_BUFFERSIZE)); - - DEBUG2(printk("scsi%ld:%d:%d:%d: %s: sense key = %x, " - "ASC/ASCQ = %02x/%02x\n", ha->host_no, - cmd->device->channel, cmd->device->id, - cmd->device->lun, __func__, - sts_entry->senseData[2] & 0x0f, - sts_entry->senseData[12], - sts_entry->senseData[13])); + qla4xxx_copy_sense(ha, sts_entry, srb); } else { /* * If RISC reports underrun and target does not @@ -268,9 +326,10 @@ static void qla4xxx_status_entry(struct scsi_qla_host *ha, status_entry_exit: - /* complete the request */ + /* complete the request, if not waiting for status_continuation pkt */ srb->cc_stat = sts_entry->completionStatus; - qla4xxx_srb_compl(ha, srb); + if (ha->status_srb == NULL) + qla4xxx_srb_compl(ha, srb); } /** @@ -305,10 +364,7 @@ static void qla4xxx_process_response_queue(struct scsi_qla_host * ha) /* process entry */ switch (sts_entry->hdr.entryType) { case ET_STATUS: - /* - * Common status - Single completion posted in single - * IOSB. - */ + /* Common status */ qla4xxx_status_entry(ha, sts_entry); break; @@ -316,9 +372,8 @@ static void qla4xxx_process_response_queue(struct scsi_qla_host * ha) break; case ET_STATUS_CONTINUATION: - /* Just throw away the status continuation entries */ - DEBUG2(printk("scsi%ld: %s: Status Continuation entry " - "- ignoring\n", ha->host_no, __func__)); + qla4xxx_status_cont_entry(ha, + (struct status_cont_entry *) sts_entry); break; case ET_COMMAND: diff --git a/drivers/scsi/qla4xxx/ql4_version.h b/drivers/scsi/qla4xxx/ql4_version.h index ab984cb89ce..6980cb279c8 100644 --- a/drivers/scsi/qla4xxx/ql4_version.h +++ b/drivers/scsi/qla4xxx/ql4_version.h @@ -5,5 +5,5 @@ * See LICENSE.qla4xxx for copyright and licensing details. */ -#define QLA4XXX_DRIVER_VERSION "5.01.00-k8" +#define QLA4XXX_DRIVER_VERSION "5.01.00-k9" -- cgit v1.2.3 From 5c656af7e4edfe44c85034d6fa7002909f9c3c59 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Wed, 15 Jul 2009 15:02:59 -0500 Subject: [SCSI] qla4xxx: add timeout handler Recently dm-multipath began calling blk_abort_queue. This causes all the commands/request running on the path to have the timeout function called. If a path does go down, and the LLD returns DID_*, dm-multpiath will eventually get this error and begin to call the cmd timeout handler. qla4xxx currently does not set a timed out handler and so the default one could return BLK_EH_NOT_HANDLED and end up firing the scsi eh and stopping IO to all paths on the host when only one path is affected. For software and offload iscsi we have a timed out handler already. This patch adds a driver specific one to qla4xxx because there are some ddb->state and session->state and command completion races that are better handled in the LLD. This also handles the problem where if the session is down, we do not need the scsi eh to run until the transport code has tried to reconnect us. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/qla4xxx/ql4_os.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index ec9da6ce848..6841883b361 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -66,6 +66,7 @@ static int qla4xxx_sess_get_param(struct iscsi_cls_session *sess, static int qla4xxx_host_get_param(struct Scsi_Host *shost, enum iscsi_host_param param, char *buf); static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session); +static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc); /* * SCSI host template entry points @@ -89,6 +90,7 @@ static struct scsi_host_template qla4xxx_driver_template = { .eh_device_reset_handler = qla4xxx_eh_device_reset, .eh_target_reset_handler = qla4xxx_eh_target_reset, .eh_host_reset_handler = qla4xxx_eh_host_reset, + .eh_timed_out = qla4xxx_eh_cmd_timed_out, .slave_configure = qla4xxx_slave_configure, .slave_alloc = qla4xxx_slave_alloc, @@ -124,6 +126,21 @@ static struct iscsi_transport qla4xxx_iscsi_transport = { static struct scsi_transport_template *qla4xxx_scsi_transport; +static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) +{ + struct iscsi_cls_session *session; + struct ddb_entry *ddb_entry; + + session = starget_to_session(scsi_target(sc->device)); + ddb_entry = session->dd_data; + + /* if we are not logged in then the LLD is going to clean up the cmd */ + if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) + return BLK_EH_RESET_TIMER; + else + return BLK_EH_NOT_HANDLED; +} + static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session) { struct ddb_entry *ddb_entry = session->dd_data; -- cgit v1.2.3 From dca05c4c07c48da0509708d9e562578d269e90e5 Mon Sep 17 00:00:00 2001 From: Karen Higgins Date: Wed, 15 Jul 2009 15:03:00 -0500 Subject: [SCSI] qla4xxx: Fix Driver Fault Recovery Completion Fixed driver bug where adapter recovery did not complete if there were outstanding commands detected on that host adapter. Signed-off-by: Karen Higgins Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/qla4xxx/ql4_os.c | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 6841883b361..e1cc0d21d89 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -921,18 +921,17 @@ static int qla4xxx_recover_adapter(struct scsi_qla_host *ha, /* Flush any pending ddb changed AENs */ qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); + qla4xxx_flush_active_srbs(ha); + /* Reset the firmware. If successful, function * returns with ISP interrupts enabled. */ - if (status == QLA_SUCCESS) { - DEBUG2(printk("scsi%ld: %s - Performing soft reset..\n", - ha->host_no, __func__)); - qla4xxx_flush_active_srbs(ha); - if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) - status = qla4xxx_soft_reset(ha); - else - status = QLA_ERROR; - } + DEBUG2(printk("scsi%ld: %s - Performing soft reset..\n", + ha->host_no, __func__)); + if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) + status = qla4xxx_soft_reset(ha); + else + status = QLA_ERROR; /* Flush any pending ddb changed AENs */ qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); @@ -1661,7 +1660,7 @@ static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) ha = (struct scsi_qla_host *) cmd->device->host->hostdata; dev_info(&ha->pdev->dev, - "scsi(%ld:%d:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, + "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no, cmd->device->channel, cmd->device->id, cmd->device->lun); if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { -- cgit v1.2.3 From 612f73488785829d4f34aad00bfe30b904c94c9e Mon Sep 17 00:00:00 2001 From: Karen Higgins Date: Wed, 15 Jul 2009 15:03:01 -0500 Subject: [SCSI] qla4xxx: Fix srb lookup in qla4xxx_eh_device_reset eh_device_reset may be called from scsi error handler or sg_reset, etc. When called from sg_reset, there will not be an associated srb. The driver should lookup the corresponding device handle given information from the supplied cmd structure and should not assume that there exists an srb. Signed-off-by: Karen Higgins Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/qla4xxx/ql4_os.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index e1cc0d21d89..40e3cafb3a9 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -1543,11 +1543,9 @@ static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) { struct scsi_qla_host *ha = to_qla_host(cmd->device->host); struct ddb_entry *ddb_entry = cmd->device->hostdata; - struct srb *sp; int ret = FAILED, stat; - sp = (struct srb *) cmd->SCp.ptr; - if (!sp || !ddb_entry) + if (!ddb_entry) return ret; dev_info(&ha->pdev->dev, -- cgit v1.2.3 From 16ed55f9de6743ceece9bf528362cadff10f1c5c Mon Sep 17 00:00:00 2001 From: Karen Higgins Date: Wed, 15 Jul 2009 15:03:02 -0500 Subject: [SCSI] qla4xxx: Remove hiwat code so scsi eh does not get escalated when we can make progress Removed unnecessary hiwat code to free up the number available IOCBs. Eliminates unnecessary eh_ escalations due to inability to obtain IOCB pkt for marker. v2. - Remove define not used anymore and fix req_q_coun accounting. Signed-off-by: Karen Higgins [michaelc: ported patch from qlogic.com driver to upstream] Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/qla4xxx/ql4_def.h | 2 - drivers/scsi/qla4xxx/ql4_iocb.c | 133 ++++++++++++++++++---------------------- drivers/scsi/qla4xxx/ql4_mbx.c | 10 --- 3 files changed, 60 insertions(+), 85 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h index 963e8553d21..81b5f29254e 100644 --- a/drivers/scsi/qla4xxx/ql4_def.h +++ b/drivers/scsi/qla4xxx/ql4_def.h @@ -100,7 +100,6 @@ #define MAX_SRBS MAX_CMDS_TO_RISC #define MBOX_AEN_REG_COUNT 5 #define MAX_INIT_RETRIES 5 -#define IOCB_HIWAT_CUSHION 16 /* * Buffer sizes @@ -307,7 +306,6 @@ struct scsi_qla_host { uint32_t tot_ddbs; uint16_t iocb_cnt; - uint16_t iocb_hiwat; /* SRB cache. */ #define SRB_MIN_REQ 128 diff --git a/drivers/scsi/qla4xxx/ql4_iocb.c b/drivers/scsi/qla4xxx/ql4_iocb.c index 912a67494ad..e0c32159749 100644 --- a/drivers/scsi/qla4xxx/ql4_iocb.c +++ b/drivers/scsi/qla4xxx/ql4_iocb.c @@ -10,9 +10,42 @@ #include "ql4_dbg.h" #include "ql4_inline.h" - #include +static int +qla4xxx_space_in_req_ring(struct scsi_qla_host *ha, uint16_t req_cnt) +{ + uint16_t cnt; + + /* Calculate number of free request entries. */ + if ((req_cnt + 2) >= ha->req_q_count) { + cnt = (uint16_t) le32_to_cpu(ha->shadow_regs->req_q_out); + if (ha->request_in < cnt) + ha->req_q_count = cnt - ha->request_in; + else + ha->req_q_count = REQUEST_QUEUE_DEPTH - + (ha->request_in - cnt); + } + + /* Check if room for request in request ring. */ + if ((req_cnt + 2) < ha->req_q_count) + return 1; + else + return 0; +} + +static void qla4xxx_advance_req_ring_ptr(struct scsi_qla_host *ha) +{ + /* Advance request queue pointer */ + if (ha->request_in == (REQUEST_QUEUE_DEPTH - 1)) { + ha->request_in = 0; + ha->request_ptr = ha->request_ring; + } else { + ha->request_in++; + ha->request_ptr++; + } +} + /** * qla4xxx_get_req_pkt - returns a valid entry in request queue. * @ha: Pointer to host adapter structure. @@ -26,35 +59,18 @@ static int qla4xxx_get_req_pkt(struct scsi_qla_host *ha, struct queue_entry **queue_entry) { - uint16_t request_in; - uint8_t status = QLA_SUCCESS; - - *queue_entry = ha->request_ptr; + uint16_t req_cnt = 1; - /* get the latest request_in and request_out index */ - request_in = ha->request_in; - ha->request_out = (uint16_t) le32_to_cpu(ha->shadow_regs->req_q_out); - - /* Advance request queue pointer and check for queue full */ - if (request_in == (REQUEST_QUEUE_DEPTH - 1)) { - request_in = 0; - ha->request_ptr = ha->request_ring; - } else { - request_in++; - ha->request_ptr++; - } - - /* request queue is full, try again later */ - if ((ha->iocb_cnt + 1) >= ha->iocb_hiwat) { - /* restore request pointer */ - ha->request_ptr = *queue_entry; - status = QLA_ERROR; - } else { - ha->request_in = request_in; + if (qla4xxx_space_in_req_ring(ha, req_cnt)) { + *queue_entry = ha->request_ptr; memset(*queue_entry, 0, sizeof(**queue_entry)); + + qla4xxx_advance_req_ring_ptr(ha); + ha->req_q_count -= req_cnt; + return QLA_SUCCESS; } - return status; + return QLA_ERROR; } /** @@ -100,21 +116,14 @@ exit_send_marker: return status; } -static struct continuation_t1_entry* qla4xxx_alloc_cont_entry( - struct scsi_qla_host *ha) +static struct continuation_t1_entry * +qla4xxx_alloc_cont_entry(struct scsi_qla_host *ha) { struct continuation_t1_entry *cont_entry; cont_entry = (struct continuation_t1_entry *)ha->request_ptr; - /* Advance request queue pointer */ - if (ha->request_in == (REQUEST_QUEUE_DEPTH - 1)) { - ha->request_in = 0; - ha->request_ptr = ha->request_ring; - } else { - ha->request_in++; - ha->request_ptr++; - } + qla4xxx_advance_req_ring_ptr(ha); /* Load packet defaults */ cont_entry->hdr.entryType = ET_CONTINUE; @@ -197,13 +206,10 @@ int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb * srb) struct scsi_cmnd *cmd = srb->cmd; struct ddb_entry *ddb_entry; struct command_t3_entry *cmd_entry; - int nseg; uint16_t tot_dsds; uint16_t req_cnt; - unsigned long flags; - uint16_t cnt; uint32_t index; char tag[2]; @@ -217,6 +223,19 @@ int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb * srb) index = (uint32_t)cmd->request->tag; + /* + * Check to see if adapter is online before placing request on + * request queue. If a reset occurs and a request is in the queue, + * the firmware will still attempt to process the request, retrieving + * garbage for pointers. + */ + if (!test_bit(AF_ONLINE, &ha->flags)) { + DEBUG2(printk("scsi%ld: %s: Adapter OFFLINE! " + "Do not issue command.\n", + ha->host_no, __func__)); + goto queuing_error; + } + /* Calculate the number of request entries needed. */ nseg = scsi_dma_map(cmd); if (nseg < 0) @@ -224,17 +243,7 @@ int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb * srb) tot_dsds = nseg; req_cnt = qla4xxx_calc_request_entries(tot_dsds); - - if (ha->req_q_count < (req_cnt + 2)) { - cnt = (uint16_t) le32_to_cpu(ha->shadow_regs->req_q_out); - if (ha->request_in < cnt) - ha->req_q_count = cnt - ha->request_in; - else - ha->req_q_count = REQUEST_QUEUE_DEPTH - - (ha->request_in - cnt); - } - - if (ha->req_q_count < (req_cnt + 2)) + if (!qla4xxx_space_in_req_ring(ha, req_cnt)) goto queuing_error; /* total iocbs active */ @@ -286,32 +295,10 @@ int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb * srb) break; } - - /* Advance request queue pointer */ - ha->request_in++; - if (ha->request_in == REQUEST_QUEUE_DEPTH) { - ha->request_in = 0; - ha->request_ptr = ha->request_ring; - } else - ha->request_ptr++; - - + qla4xxx_advance_req_ring_ptr(ha); qla4xxx_build_scsi_iocbs(srb, cmd_entry, tot_dsds); wmb(); - /* - * Check to see if adapter is online before placing request on - * request queue. If a reset occurs and a request is in the queue, - * the firmware will still attempt to process the request, retrieving - * garbage for pointers. - */ - if (!test_bit(AF_ONLINE, &ha->flags)) { - DEBUG2(printk("scsi%ld: %s: Adapter OFFLINE! " - "Do not issue command.\n", - ha->host_no, __func__)); - goto queuing_error; - } - srb->cmd->host_scribble = (unsigned char *)srb; /* update counters */ diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c index 051b0f5e8c8..09d6d4b76f3 100644 --- a/drivers/scsi/qla4xxx/ql4_mbx.c +++ b/drivers/scsi/qla4xxx/ql4_mbx.c @@ -385,16 +385,6 @@ int qla4xxx_get_firmware_status(struct scsi_qla_host * ha) mbox_sts[0])); return QLA_ERROR; } - - /* High-water mark of IOCBs */ - ha->iocb_hiwat = mbox_sts[2]; - if (ha->iocb_hiwat > IOCB_HIWAT_CUSHION) - ha->iocb_hiwat -= IOCB_HIWAT_CUSHION; - else - dev_info(&ha->pdev->dev, "WARNING!!! You have less than %d " - "firmware IOCBs available (%d).\n", - IOCB_HIWAT_CUSHION, ha->iocb_hiwat); - return QLA_SUCCESS; } -- cgit v1.2.3 From a0cc1ecc098e31d03b3265712a3e280a7fabf438 Mon Sep 17 00:00:00 2001 From: Vasu Dev Date: Tue, 28 Jul 2009 17:33:37 -0700 Subject: [SCSI] libfc: fix a circular locking warning during sending RRQ Currently the fc_exch_rrq is called with fc_exch's ex_lock held. The fc_exch_rrq allocates new exch and that requires taking ex_lock again after EM lock. This locking order causes warning, see more details on this warning at :- http://www.open-fcoe.org/pipermail/devel/2009-July/003251.html This patch fixes this by dropping the ex_lock before calling fc_exch_rrq(). The fc_exch_rrq needs to grab ex_lock lock again to schedule RRQ retry and in the meanwhile fc_exch_reset could occur before ex_lock is grabbed inside fc_exch_rrq. So to handle this case, this patch adds additional check to detect fc_exch_reset after ex_lock acquired and in case the fc_exch_reset occurred then abandons the RRQ retry and releases the exch. Signed-off-by: Vasu Dev Signed-off-by: Robert Love Signed-off-by: James Bottomley --- drivers/scsi/libfc/fc_exch.c | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-) diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c index 2bc22be5f84..145ab9ba55e 100644 --- a/drivers/scsi/libfc/fc_exch.c +++ b/drivers/scsi/libfc/fc_exch.c @@ -415,9 +415,9 @@ static void fc_exch_timeout(struct work_struct *work) e_stat = ep->esb_stat; if (e_stat & ESB_ST_COMPLETE) { ep->esb_stat = e_stat & ~ESB_ST_REC_QUAL; + spin_unlock_bh(&ep->ex_lock); if (e_stat & ESB_ST_REC_QUAL) fc_exch_rrq(ep); - spin_unlock_bh(&ep->ex_lock); goto done; } else { resp = ep->resp; @@ -1624,14 +1624,14 @@ static void fc_exch_rrq(struct fc_exch *ep) struct fc_lport *lp; struct fc_els_rrq *rrq; struct fc_frame *fp; - struct fc_seq *rrq_sp; u32 did; lp = ep->lp; fp = fc_frame_alloc(lp, sizeof(*rrq)); if (!fp) - return; + goto retry; + rrq = fc_frame_payload_get(fp, sizeof(*rrq)); memset(rrq, 0, sizeof(*rrq)); rrq->rrq_cmd = ELS_RRQ; @@ -1647,13 +1647,20 @@ static void fc_exch_rrq(struct fc_exch *ep) fc_host_port_id(lp->host), FC_TYPE_ELS, FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT, 0); - rrq_sp = fc_exch_seq_send(lp, fp, fc_exch_rrq_resp, NULL, ep, - lp->e_d_tov); - if (!rrq_sp) { - ep->esb_stat |= ESB_ST_REC_QUAL; - fc_exch_timer_set_locked(ep, ep->r_a_tov); + if (fc_exch_seq_send(lp, fp, fc_exch_rrq_resp, NULL, ep, lp->e_d_tov)) + return; + +retry: + spin_lock_bh(&ep->ex_lock); + if (ep->state & (FC_EX_RST_CLEANUP | FC_EX_DONE)) { + spin_unlock_bh(&ep->ex_lock); + /* drop hold for rec qual */ + fc_exch_release(ep); return; } + ep->esb_stat |= ESB_ST_REC_QUAL; + fc_exch_timer_set_locked(ep, ep->r_a_tov); + spin_unlock_bh(&ep->ex_lock); } -- cgit v1.2.3 From f36f3042eae238bdaefe7c79310afe573bfc3622 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Thu, 30 Jul 2009 10:04:48 -0400 Subject: Btrfs: be more polite in the async caching threads The semaphore used by the async caching threads can prevent a transaction commit, which can make the FS appear to stall. This releases the semaphore more often when a transaction commit is in progress. Signed-off-by: Chris Mason --- fs/btrfs/extent-tree.c | 5 +++-- fs/btrfs/transaction.c | 10 ++++++++++ fs/btrfs/transaction.h | 1 + 3 files changed, 14 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 2fe21fa7491..dc84daee6bc 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -302,10 +302,11 @@ again: else if (ret) break; - if (need_resched()) { + if (need_resched() || + btrfs_transaction_in_commit(fs_info)) { btrfs_release_path(fs_info->extent_root, path); up_read(&fs_info->extent_commit_sem); - cond_resched(); + schedule_timeout(1); goto again; } diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index de48e4ec808..cdbb5022da5 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -857,6 +857,16 @@ static void update_super_roots(struct btrfs_root *root) super->root_level = root_item->level; } +int btrfs_transaction_in_commit(struct btrfs_fs_info *info) +{ + int ret = 0; + spin_lock(&info->new_trans_lock); + if (info->running_transaction) + ret = info->running_transaction->in_commit; + spin_unlock(&info->new_trans_lock); + return ret; +} + int btrfs_commit_transaction(struct btrfs_trans_handle *trans, struct btrfs_root *root) { diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h index 961c3ee5a2e..663c6740491 100644 --- a/fs/btrfs/transaction.h +++ b/fs/btrfs/transaction.h @@ -107,4 +107,5 @@ int btrfs_record_root_in_trans(struct btrfs_trans_handle *trans, struct btrfs_root *root); int btrfs_write_and_wait_marked_extents(struct btrfs_root *root, struct extent_io_tree *dirty_pages); +int btrfs_transaction_in_commit(struct btrfs_fs_info *info); #endif -- cgit v1.2.3 From 19252de6818ced0def0551d64a0a2975f52a523d Mon Sep 17 00:00:00 2001 From: Tom Peng Date: Fri, 17 Jul 2009 16:02:04 +0800 Subject: [SCSI] libsas: fix wide port hotplug issues Hotplug of phys which form wide ports simply does not work at the moment. Fix this by adding checks at the hotplug points to see if the attached sas address of the phy already exists (in which case it's part of a wide port) and act accordingly. Signed-off-by: Tom Peng Signed-off-by: Jack Wang Signed-off-by: Lindar Liu Signed-off-by: Kevin Ao [jejb: tidied up coding, fixed an error case and made TRUE/FALSE lower case to fix a ppc64 compile error in linux-next] Signed-off-by: James Bottomley --- drivers/scsi/libsas/sas_expander.c | 147 +++++++++++++++++++++++++++---------- 1 file changed, 107 insertions(+), 40 deletions(-) diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index 54fa1e42dc4..b3381959acc 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -766,6 +766,7 @@ static int sas_ex_join_wide_port(struct domain_device *parent, int phy_id) if (!memcmp(phy->attached_sas_addr, ephy->attached_sas_addr, SAS_ADDR_SIZE) && ephy->port) { sas_port_add_phy(ephy->port, phy->phy); + phy->port = ephy->port; phy->phy_state = PHY_DEVICE_DISCOVERED; return 0; } @@ -945,11 +946,21 @@ static int sas_ex_discover_dev(struct domain_device *dev, int phy_id) if (ex->ex_phy[i].phy_state == PHY_VACANT || ex->ex_phy[i].phy_state == PHY_NOT_PRESENT) continue; - + /* + * Due to races, the phy might not get added to the + * wide port, so we add the phy to the wide port here. + */ if (SAS_ADDR(ex->ex_phy[i].attached_sas_addr) == - SAS_ADDR(child->sas_addr)) + SAS_ADDR(child->sas_addr)) { ex->ex_phy[i].phy_state= PHY_DEVICE_DISCOVERED; + res = sas_ex_join_wide_port(dev, i); + if (!res) + SAS_DPRINTK("Attaching ex phy%d to wide port %016llx\n", + i, SAS_ADDR(ex->ex_phy[i].attached_sas_addr)); + + } } + res = 0; } return res; @@ -1598,7 +1609,7 @@ static int sas_get_phy_attached_sas_addr(struct domain_device *dev, } static int sas_find_bcast_phy(struct domain_device *dev, int *phy_id, - int from_phy) + int from_phy, bool update) { struct expander_device *ex = &dev->ex_dev; int res = 0; @@ -1611,7 +1622,9 @@ static int sas_find_bcast_phy(struct domain_device *dev, int *phy_id, if (res) goto out; else if (phy_change_count != ex->ex_phy[i].phy_change_count) { - ex->ex_phy[i].phy_change_count = phy_change_count; + if (update) + ex->ex_phy[i].phy_change_count = + phy_change_count; *phy_id = i; return 0; } @@ -1653,31 +1666,52 @@ out: kfree(rg_req); return res; } +/** + * sas_find_bcast_dev - find the device issue BROADCAST(CHANGE). + * @dev:domain device to be detect. + * @src_dev: the device which originated BROADCAST(CHANGE). + * + * Add self-configuration expander suport. Suppose two expander cascading, + * when the first level expander is self-configuring, hotplug the disks in + * second level expander, BROADCAST(CHANGE) will not only be originated + * in the second level expander, but also be originated in the first level + * expander (see SAS protocol SAS 2r-14, 7.11 for detail), it is to say, + * expander changed count in two level expanders will all increment at least + * once, but the phy which chang count has changed is the source device which + * we concerned. + */ static int sas_find_bcast_dev(struct domain_device *dev, struct domain_device **src_dev) { struct expander_device *ex = &dev->ex_dev; int ex_change_count = -1; + int phy_id = -1; int res; + struct domain_device *ch; res = sas_get_ex_change_count(dev, &ex_change_count); if (res) goto out; - if (ex_change_count != -1 && - ex_change_count != ex->ex_change_count) { - *src_dev = dev; - ex->ex_change_count = ex_change_count; - } else { - struct domain_device *ch; - - list_for_each_entry(ch, &ex->children, siblings) { - if (ch->dev_type == EDGE_DEV || - ch->dev_type == FANOUT_DEV) { - res = sas_find_bcast_dev(ch, src_dev); - if (src_dev) - return res; - } + if (ex_change_count != -1 && ex_change_count != ex->ex_change_count) { + /* Just detect if this expander phys phy change count changed, + * in order to determine if this expander originate BROADCAST, + * and do not update phy change count field in our structure. + */ + res = sas_find_bcast_phy(dev, &phy_id, 0, false); + if (phy_id != -1) { + *src_dev = dev; + ex->ex_change_count = ex_change_count; + SAS_DPRINTK("Expander phy change count has changed\n"); + return res; + } else + SAS_DPRINTK("Expander phys DID NOT change\n"); + } + list_for_each_entry(ch, &ex->children, siblings) { + if (ch->dev_type == EDGE_DEV || ch->dev_type == FANOUT_DEV) { + res = sas_find_bcast_dev(ch, src_dev); + if (src_dev) + return res; } } out: @@ -1700,24 +1734,26 @@ static void sas_unregister_ex_tree(struct domain_device *dev) } static void sas_unregister_devs_sas_addr(struct domain_device *parent, - int phy_id) + int phy_id, bool last) { struct expander_device *ex_dev = &parent->ex_dev; struct ex_phy *phy = &ex_dev->ex_phy[phy_id]; struct domain_device *child, *n; - - list_for_each_entry_safe(child, n, &ex_dev->children, siblings) { - if (SAS_ADDR(child->sas_addr) == - SAS_ADDR(phy->attached_sas_addr)) { - if (child->dev_type == EDGE_DEV || - child->dev_type == FANOUT_DEV) - sas_unregister_ex_tree(child); - else - sas_unregister_dev(child); - break; + if (last) { + list_for_each_entry_safe(child, n, + &ex_dev->children, siblings) { + if (SAS_ADDR(child->sas_addr) == + SAS_ADDR(phy->attached_sas_addr)) { + if (child->dev_type == EDGE_DEV || + child->dev_type == FANOUT_DEV) + sas_unregister_ex_tree(child); + else + sas_unregister_dev(child); + break; + } } + sas_disable_routing(parent, phy->attached_sas_addr); } - sas_disable_routing(parent, phy->attached_sas_addr); memset(phy->attached_sas_addr, 0, SAS_ADDR_SIZE); sas_port_delete_phy(phy->port, phy->phy); if (phy->port->num_phys == 0) @@ -1770,15 +1806,31 @@ static int sas_discover_new(struct domain_device *dev, int phy_id) { struct ex_phy *ex_phy = &dev->ex_dev.ex_phy[phy_id]; struct domain_device *child; - int res; + bool found = false; + int res, i; SAS_DPRINTK("ex %016llx phy%d new device attached\n", SAS_ADDR(dev->sas_addr), phy_id); res = sas_ex_phy_discover(dev, phy_id); if (res) goto out; + /* to support the wide port inserted */ + for (i = 0; i < dev->ex_dev.num_phys; i++) { + struct ex_phy *ex_phy_temp = &dev->ex_dev.ex_phy[i]; + if (i == phy_id) + continue; + if (SAS_ADDR(ex_phy_temp->attached_sas_addr) == + SAS_ADDR(ex_phy->attached_sas_addr)) { + found = true; + break; + } + } + if (found) { + sas_ex_join_wide_port(dev, phy_id); + return 0; + } res = sas_ex_discover_devices(dev, phy_id); - if (res) + if (!res) goto out; list_for_each_entry(child, &dev->ex_dev.children, siblings) { if (SAS_ADDR(child->sas_addr) == @@ -1793,7 +1845,7 @@ out: return res; } -static int sas_rediscover_dev(struct domain_device *dev, int phy_id) +static int sas_rediscover_dev(struct domain_device *dev, int phy_id, bool last) { struct expander_device *ex = &dev->ex_dev; struct ex_phy *phy = &ex->ex_phy[phy_id]; @@ -1804,11 +1856,11 @@ static int sas_rediscover_dev(struct domain_device *dev, int phy_id) switch (res) { case SMP_RESP_NO_PHY: phy->phy_state = PHY_NOT_PRESENT; - sas_unregister_devs_sas_addr(dev, phy_id); + sas_unregister_devs_sas_addr(dev, phy_id, last); goto out; break; case SMP_RESP_PHY_VACANT: phy->phy_state = PHY_VACANT; - sas_unregister_devs_sas_addr(dev, phy_id); + sas_unregister_devs_sas_addr(dev, phy_id, last); goto out; break; case SMP_RESP_FUNC_ACC: break; @@ -1816,7 +1868,7 @@ static int sas_rediscover_dev(struct domain_device *dev, int phy_id) if (SAS_ADDR(attached_sas_addr) == 0) { phy->phy_state = PHY_EMPTY; - sas_unregister_devs_sas_addr(dev, phy_id); + sas_unregister_devs_sas_addr(dev, phy_id, last); } else if (SAS_ADDR(attached_sas_addr) == SAS_ADDR(phy->attached_sas_addr)) { SAS_DPRINTK("ex %016llx phy 0x%x broadcast flutter\n", @@ -1828,12 +1880,27 @@ out: return res; } +/** + * sas_rediscover - revalidate the domain. + * @dev:domain device to be detect. + * @phy_id: the phy id will be detected. + * + * NOTE: this process _must_ quit (return) as soon as any connection + * errors are encountered. Connection recovery is done elsewhere. + * Discover process only interrogates devices in order to discover the + * domain.For plugging out, we un-register the device only when it is + * the last phy in the port, for other phys in this port, we just delete it + * from the port.For inserting, we do discovery when it is the + * first phy,for other phys in this port, we add it to the port to + * forming the wide-port. + */ static int sas_rediscover(struct domain_device *dev, const int phy_id) { struct expander_device *ex = &dev->ex_dev; struct ex_phy *changed_phy = &ex->ex_phy[phy_id]; int res = 0; int i; + bool last = true; /* is this the last phy of the port */ SAS_DPRINTK("ex %016llx phy%d originated BROADCAST(CHANGE)\n", SAS_ADDR(dev->sas_addr), phy_id); @@ -1848,13 +1915,13 @@ static int sas_rediscover(struct domain_device *dev, const int phy_id) SAS_ADDR(changed_phy->attached_sas_addr)) { SAS_DPRINTK("phy%d part of wide port with " "phy%d\n", phy_id, i); - goto out; + last = false; + break; } } - res = sas_rediscover_dev(dev, phy_id); + res = sas_rediscover_dev(dev, phy_id, last); } else res = sas_discover_new(dev, phy_id); -out: return res; } @@ -1881,7 +1948,7 @@ int sas_ex_revalidate_domain(struct domain_device *port_dev) do { phy_id = -1; - res = sas_find_bcast_phy(dev, &phy_id, i); + res = sas_find_bcast_phy(dev, &phy_id, i, true); if (phy_id == -1) break; res = sas_rediscover(dev, phy_id); -- cgit v1.2.3 From 4bf17af0dbfe4cf20cb750e22e8e926273e7a7a4 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Tue, 14 Jul 2009 19:30:23 +0200 Subject: udf: Fix loading of VAT inode when drive wrongly reports number of recorded blocks VAT inode is located in the last block recorded block of the medium. When the drive errorneously reports number of recorded blocks, we failed to load the VAT inode and thus mount the medium. This patch makes kernel try to read VAT inode from the last block of the device if it is different from the last recorded block. Signed-off-by: Jan Kara --- fs/udf/super.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/fs/udf/super.c b/fs/udf/super.c index 6832135159b..9d1b8c2e6c4 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -1087,11 +1087,23 @@ static int udf_load_vat(struct super_block *sb, int p_index, int type1_index) struct udf_inode_info *vati; uint32_t pos; struct virtualAllocationTable20 *vat20; + sector_t blocks = sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits; /* VAT file entry is in the last recorded block */ ino.partitionReferenceNum = type1_index; ino.logicalBlockNum = sbi->s_last_block - map->s_partition_root; sbi->s_vat_inode = udf_iget(sb, &ino); + if (!sbi->s_vat_inode && + sbi->s_last_block != blocks - 1) { + printk(KERN_NOTICE "UDF-fs: Failed to read VAT inode from the" + " last recorded block (%lu), retrying with the last " + "block of the device (%lu).\n", + (unsigned long)sbi->s_last_block, + (unsigned long)blocks - 1); + ino.partitionReferenceNum = type1_index; + ino.logicalBlockNum = blocks - 1 - map->s_partition_root; + sbi->s_vat_inode = udf_iget(sb, &ino); + } if (!sbi->s_vat_inode) return 1; -- cgit v1.2.3 From dee865656f2d8b866f8ac22c60d6363b914e9f12 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 22 Jul 2009 18:12:17 +0200 Subject: quota: Silence lockdep on quota_on Commit d01730d74d2b0155da50d44555001706294014f7 didn't completely fix the problem since we still take dqio_mutex and i_mutex in the wrong order. Move taking of i_mutex further down (luckily it's needed only for updating inode flags) below where dqio_mutex is taken. Tested-by: Valdis Kletnieks Signed-off-by: Jan Kara --- fs/quota/dquot.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index 70f36c043d6..38f7bd559f3 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -2043,7 +2043,6 @@ static int vfs_load_quota_inode(struct inode *inode, int type, int format_id, invalidate_bdev(sb->s_bdev); } mutex_lock(&dqopt->dqonoff_mutex); - mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA); if (sb_has_quota_loaded(sb, type)) { error = -EBUSY; goto out_lock; @@ -2054,9 +2053,11 @@ static int vfs_load_quota_inode(struct inode *inode, int type, int format_id, * possible) Also nobody should write to the file - we use * special IO operations which ignore the immutable bit. */ down_write(&dqopt->dqptr_sem); + mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA); oldflags = inode->i_flags & (S_NOATIME | S_IMMUTABLE | S_NOQUOTA); inode->i_flags |= S_NOQUOTA | S_NOATIME | S_IMMUTABLE; + mutex_unlock(&inode->i_mutex); up_write(&dqopt->dqptr_sem); sb->dq_op->drop(inode); } @@ -2080,7 +2081,6 @@ static int vfs_load_quota_inode(struct inode *inode, int type, int format_id, goto out_file_init; } mutex_unlock(&dqopt->dqio_mutex); - mutex_unlock(&inode->i_mutex); spin_lock(&dq_state_lock); dqopt->flags |= dquot_state_flag(flags, type); spin_unlock(&dq_state_lock); @@ -2096,13 +2096,14 @@ out_file_init: out_lock: if (oldflags != -1) { down_write(&dqopt->dqptr_sem); + mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA); /* Set the flags back (in the case of accidental quotaon() * on a wrong file we don't want to mess up the flags) */ inode->i_flags &= ~(S_NOATIME | S_NOQUOTA | S_IMMUTABLE); inode->i_flags |= oldflags; + mutex_unlock(&inode->i_mutex); up_write(&dqopt->dqptr_sem); } - mutex_unlock(&inode->i_mutex); mutex_unlock(&dqopt->dqonoff_mutex); out_fmt: put_quota_format(fmt); -- cgit v1.2.3 From ffd4bc2a984fab40ed969163efdff321490e8032 Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Wed, 29 Jul 2009 14:06:53 -0400 Subject: [SCSI] sd: Avoid sending extended inquiry to legacy devices Some USB devices crash when we send them an inquiry with the EVPD bit set, regardless of page requested (i.e. including page 0). We only need the extended inquiry to gain access to VPD pages 0xB0 and 0xB1. These appeared in SBC2 and SBC3 respectively, so we can restrict sending the extended inquiry to devices reporting SPC3 or higher. This fixes bugzilla.kernel.org #13657. Signed-off-by: Martin K. Petersen [jejb: added comment] Signed-off-by: James Bottomley --- drivers/scsi/sd.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 5616cd780ff..b7b9fec67a9 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1840,6 +1840,18 @@ static void sd_read_block_characteristics(struct scsi_disk *sdkp) kfree(buffer); } +static int sd_try_extended_inquiry(struct scsi_device *sdp) +{ + /* + * Although VPD inquiries can go to SCSI-2 type devices, + * some USB ones crash on receiving them, and the pages + * we currently ask for are for SPC-3 and beyond + */ + if (sdp->scsi_level > SCSI_SPC_2) + return 1; + return 0; +} + /** * sd_revalidate_disk - called the first time a new disk is seen, * performs disk spin up, read_capacity, etc. @@ -1877,8 +1889,12 @@ static int sd_revalidate_disk(struct gendisk *disk) */ if (sdkp->media_present) { sd_read_capacity(sdkp, buffer); - sd_read_block_limits(sdkp); - sd_read_block_characteristics(sdkp); + + if (sd_try_extended_inquiry(sdp)) { + sd_read_block_limits(sdkp); + sd_read_block_characteristics(sdkp); + } + sd_read_write_protect_flag(sdkp, buffer); sd_read_cache_type(sdkp, buffer); sd_read_app_tag_own(sdkp, buffer); -- cgit v1.2.3 From 2b8d33f714477d1719f96459370037993520de84 Mon Sep 17 00:00:00 2001 From: "ling.ma@intel.com" Date: Wed, 29 Jul 2009 11:31:18 +0800 Subject: drm/i915: Return disconnected for SDVO DVI when there's no digital EDID. The patch fixed a bug on MP965-D. When VGA is connected to a DVI-I connector, it incorrectly shows sdvo dvi as connected. Signed-off-by: Ma Ling [anholt: hand-resolved against previous commit and fixed up commit message] Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/intel_sdvo.c | 27 +++++++++++++++++++++------ 1 file changed, 21 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index b68746f0380..5371d933255 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -31,6 +31,7 @@ #include "drm.h" #include "drm_crtc.h" #include "intel_drv.h" +#include "drm_edid.h" #include "i915_drm.h" #include "i915_drv.h" #include "intel_sdvo_regs.h" @@ -1477,20 +1478,35 @@ intel_sdvo_multifunc_encoder(struct intel_output *intel_output) return (caps > 1); } -static void -intel_sdvo_hdmi_sink_detect(struct drm_connector *connector) +enum drm_connector_status +intel_sdvo_hdmi_sink_detect(struct drm_connector *connector, u16 response) { struct intel_output *intel_output = to_intel_output(connector); struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv; + enum drm_connector_status status = connector_status_connected; struct edid *edid = NULL; edid = drm_get_edid(&intel_output->base, intel_output->ddc_bus); if (edid != NULL) { - sdvo_priv->is_hdmi = drm_detect_hdmi_monitor(edid); + /* Don't report the output as connected if it's a DVI-I + * connector with a non-digital EDID coming out. + */ + if (response & (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1)) { + if (edid->input & DRM_EDID_INPUT_DIGITAL) + sdvo_priv->is_hdmi = + drm_detect_hdmi_monitor(edid); + else + status = connector_status_disconnected; + } + kfree(edid); intel_output->base.display_info.raw_edid = NULL; - } + + } else if (response & (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1)) + status = connector_status_disconnected; + + return status; } static enum drm_connector_status intel_sdvo_detect(struct drm_connector *connector) @@ -1518,8 +1534,7 @@ static enum drm_connector_status intel_sdvo_detect(struct drm_connector *connect return connector_status_unknown; sdvo_priv->attached_output = response; } - intel_sdvo_hdmi_sink_detect(connector); - return connector_status_connected; + return intel_sdvo_hdmi_sink_detect(connector, response); } static void intel_sdvo_get_ddc_modes(struct drm_connector *connector) -- cgit v1.2.3 From 0c2e39525b3b53a97a0202c5f35058147e53977e Mon Sep 17 00:00:00 2001 From: "ling.ma@intel.com" Date: Fri, 17 Jul 2009 11:44:30 +0800 Subject: drm/i915: Add support for dual-channel LVDS on 8xx. This corresponds to a fix to UMS back in 2007. Fixes fd.o bug #20115. Signed-off-by: Ma Ling Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/intel_display.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 1da7b0b9ed3..d6fce213341 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -90,7 +90,7 @@ struct intel_limit { #define I8XX_P2_SLOW 4 #define I8XX_P2_FAST 2 #define I8XX_P2_LVDS_SLOW 14 -#define I8XX_P2_LVDS_FAST 14 /* No fast option */ +#define I8XX_P2_LVDS_FAST 7 #define I8XX_P2_SLOW_LIMIT 165000 #define I9XX_DOT_MIN 20000 -- cgit v1.2.3 From daed953721850381673687c59f3a0df553eb6626 Mon Sep 17 00:00:00 2001 From: Frans Pop Date: Thu, 30 Jul 2009 17:16:05 -0400 Subject: hp-wmi: check that an input device exists in resume handler MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Some systems may not support input events, or registering the input handler may have failed. So check that an input device exists before trying to set the docking and tablet mode state during resume. Fixes: http://bugzilla.kernel.org/show_bug.cgi?id=13865 Reported-and-tested-by: Cédric Godin Signed-off-by: Frans Pop Acked-by: Matthew Garrett Signed-off-by: Len Brown --- drivers/platform/x86/hp-wmi.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c index ca508564a18..a2ad53e1587 100644 --- a/drivers/platform/x86/hp-wmi.c +++ b/drivers/platform/x86/hp-wmi.c @@ -520,11 +520,13 @@ static int hp_wmi_resume_handler(struct platform_device *device) * the input layer will only actually pass it on if the state * changed. */ - - input_report_switch(hp_wmi_input_dev, SW_DOCK, hp_wmi_dock_state()); - input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, - hp_wmi_tablet_state()); - input_sync(hp_wmi_input_dev); + if (hp_wmi_input_dev) { + input_report_switch(hp_wmi_input_dev, SW_DOCK, + hp_wmi_dock_state()); + input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, + hp_wmi_tablet_state()); + input_sync(hp_wmi_input_dev); + } return 0; } -- cgit v1.2.3 From 165f5f64199f972a21f21effc125d89ed2488e58 Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Wed, 1 Jul 2009 17:47:08 +0200 Subject: ARM: S3C: PWM fix for low duty cycle The pwm hardware only checks the compare register after a decrement, so the pin never toggles if tcmp = tcnt. This happens when a very low duty cycle is requested. Fix it by always ensuring that tcmp < tcnt. Signed-off-by: Peter Korsgaard Signed-off-by: Ben Dooks --- arch/arm/plat-s3c24xx/pwm.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/plat-s3c24xx/pwm.c b/arch/arm/plat-s3c24xx/pwm.c index 0120b760315..82a6d4de02a 100644 --- a/arch/arm/plat-s3c24xx/pwm.c +++ b/arch/arm/plat-s3c24xx/pwm.c @@ -246,6 +246,10 @@ int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns) tcmp = duty_ns / tin_ns; tcmp = tcnt - tcmp; + /* the pwm hw only checks the compare register after a decrement, + so the pin never toggles if tcmp = tcnt */ + if (tcmp == tcnt) + tcmp--; pwm_dbg(pwm, "tin_ns=%lu, tcmp=%ld/%lu\n", tin_ns, tcmp, tcnt); -- cgit v1.2.3 From 8fe70a5f7167e02bbc18086970f0e92a5e55b80d Mon Sep 17 00:00:00 2001 From: Ramax Lo Date: Thu, 9 Jul 2009 16:28:33 +0800 Subject: ARM: S3C24XX: serial: Fix section mismatch warnings During kernel build process, the following warning was found: WARNING: drivers/serial/built-in.o(.data+0x304): Section mismatch in reference from the variable s3c2440_serial_drv to the function .devexit.text:s3c24xx_serial_remove() The variable s3c2440_serial_drv references the function __devexit s3c24xx_serial_remove() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, The same warning happened for s3c241x platform. We rename variables to avoid these warnings. These changes also apply to s3c2400 & s3c24a0 for consistency. Signed-off-by: Ramax Lo Signed-off-by: Ben Dooks --- drivers/serial/s3c2400.c | 8 ++++---- drivers/serial/s3c2410.c | 8 ++++---- drivers/serial/s3c2412.c | 8 ++++---- drivers/serial/s3c2440.c | 8 ++++---- drivers/serial/s3c24a0.c | 8 ++++---- 5 files changed, 20 insertions(+), 20 deletions(-) diff --git a/drivers/serial/s3c2400.c b/drivers/serial/s3c2400.c index fb00ed5296e..fed1a9a1ffb 100644 --- a/drivers/serial/s3c2400.c +++ b/drivers/serial/s3c2400.c @@ -76,7 +76,7 @@ static int s3c2400_serial_probe(struct platform_device *dev) return s3c24xx_serial_probe(dev, &s3c2400_uart_inf); } -static struct platform_driver s3c2400_serial_drv = { +static struct platform_driver s3c2400_serial_driver = { .probe = s3c2400_serial_probe, .remove = __devexit_p(s3c24xx_serial_remove), .driver = { @@ -85,16 +85,16 @@ static struct platform_driver s3c2400_serial_drv = { }, }; -s3c24xx_console_init(&s3c2400_serial_drv, &s3c2400_uart_inf); +s3c24xx_console_init(&s3c2400_serial_driver, &s3c2400_uart_inf); static inline int s3c2400_serial_init(void) { - return s3c24xx_serial_init(&s3c2400_serial_drv, &s3c2400_uart_inf); + return s3c24xx_serial_init(&s3c2400_serial_driver, &s3c2400_uart_inf); } static inline void s3c2400_serial_exit(void) { - platform_driver_unregister(&s3c2400_serial_drv); + platform_driver_unregister(&s3c2400_serial_driver); } module_init(s3c2400_serial_init); diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c index b5d7cbcba2a..c99f0821cae 100644 --- a/drivers/serial/s3c2410.c +++ b/drivers/serial/s3c2410.c @@ -88,7 +88,7 @@ static int s3c2410_serial_probe(struct platform_device *dev) return s3c24xx_serial_probe(dev, &s3c2410_uart_inf); } -static struct platform_driver s3c2410_serial_drv = { +static struct platform_driver s3c2410_serial_driver = { .probe = s3c2410_serial_probe, .remove = __devexit_p(s3c24xx_serial_remove), .driver = { @@ -97,16 +97,16 @@ static struct platform_driver s3c2410_serial_drv = { }, }; -s3c24xx_console_init(&s3c2410_serial_drv, &s3c2410_uart_inf); +s3c24xx_console_init(&s3c2410_serial_driver, &s3c2410_uart_inf); static int __init s3c2410_serial_init(void) { - return s3c24xx_serial_init(&s3c2410_serial_drv, &s3c2410_uart_inf); + return s3c24xx_serial_init(&s3c2410_serial_driver, &s3c2410_uart_inf); } static void __exit s3c2410_serial_exit(void) { - platform_driver_unregister(&s3c2410_serial_drv); + platform_driver_unregister(&s3c2410_serial_driver); } module_init(s3c2410_serial_init); diff --git a/drivers/serial/s3c2412.c b/drivers/serial/s3c2412.c index 11dcb90bdfe..6e057d8809d 100644 --- a/drivers/serial/s3c2412.c +++ b/drivers/serial/s3c2412.c @@ -121,7 +121,7 @@ static int s3c2412_serial_probe(struct platform_device *dev) return s3c24xx_serial_probe(dev, &s3c2412_uart_inf); } -static struct platform_driver s3c2412_serial_drv = { +static struct platform_driver s3c2412_serial_driver = { .probe = s3c2412_serial_probe, .remove = __devexit_p(s3c24xx_serial_remove), .driver = { @@ -130,16 +130,16 @@ static struct platform_driver s3c2412_serial_drv = { }, }; -s3c24xx_console_init(&s3c2412_serial_drv, &s3c2412_uart_inf); +s3c24xx_console_init(&s3c2412_serial_driver, &s3c2412_uart_inf); static inline int s3c2412_serial_init(void) { - return s3c24xx_serial_init(&s3c2412_serial_drv, &s3c2412_uart_inf); + return s3c24xx_serial_init(&s3c2412_serial_driver, &s3c2412_uart_inf); } static inline void s3c2412_serial_exit(void) { - platform_driver_unregister(&s3c2412_serial_drv); + platform_driver_unregister(&s3c2412_serial_driver); } module_init(s3c2412_serial_init); diff --git a/drivers/serial/s3c2440.c b/drivers/serial/s3c2440.c index 06c5b0cc47a..69ff5d340f0 100644 --- a/drivers/serial/s3c2440.c +++ b/drivers/serial/s3c2440.c @@ -151,7 +151,7 @@ static int s3c2440_serial_probe(struct platform_device *dev) return s3c24xx_serial_probe(dev, &s3c2440_uart_inf); } -static struct platform_driver s3c2440_serial_drv = { +static struct platform_driver s3c2440_serial_driver = { .probe = s3c2440_serial_probe, .remove = __devexit_p(s3c24xx_serial_remove), .driver = { @@ -160,16 +160,16 @@ static struct platform_driver s3c2440_serial_drv = { }, }; -s3c24xx_console_init(&s3c2440_serial_drv, &s3c2440_uart_inf); +s3c24xx_console_init(&s3c2440_serial_driver, &s3c2440_uart_inf); static int __init s3c2440_serial_init(void) { - return s3c24xx_serial_init(&s3c2440_serial_drv, &s3c2440_uart_inf); + return s3c24xx_serial_init(&s3c2440_serial_driver, &s3c2440_uart_inf); } static void __exit s3c2440_serial_exit(void) { - platform_driver_unregister(&s3c2440_serial_drv); + platform_driver_unregister(&s3c2440_serial_driver); } module_init(s3c2440_serial_init); diff --git a/drivers/serial/s3c24a0.c b/drivers/serial/s3c24a0.c index 786a067d62a..26c49e18bdd 100644 --- a/drivers/serial/s3c24a0.c +++ b/drivers/serial/s3c24a0.c @@ -92,7 +92,7 @@ static int s3c24a0_serial_probe(struct platform_device *dev) return s3c24xx_serial_probe(dev, &s3c24a0_uart_inf); } -static struct platform_driver s3c24a0_serial_drv = { +static struct platform_driver s3c24a0_serial_driver = { .probe = s3c24a0_serial_probe, .remove = __devexit_p(s3c24xx_serial_remove), .driver = { @@ -101,16 +101,16 @@ static struct platform_driver s3c24a0_serial_drv = { }, }; -s3c24xx_console_init(&s3c24a0_serial_drv, &s3c24a0_uart_inf); +s3c24xx_console_init(&s3c24a0_serial_driver, &s3c24a0_uart_inf); static int __init s3c24a0_serial_init(void) { - return s3c24xx_serial_init(&s3c24a0_serial_drv, &s3c24a0_uart_inf); + return s3c24xx_serial_init(&s3c24a0_serial_driver, &s3c24a0_uart_inf); } static void __exit s3c24a0_serial_exit(void) { - platform_driver_unregister(&s3c24a0_serial_drv); + platform_driver_unregister(&s3c24a0_serial_driver); } module_init(s3c24a0_serial_init); -- cgit v1.2.3 From 909db80297ba65699a77d877f7bf618ba960f6fc Mon Sep 17 00:00:00 2001 From: Ramax Lo Date: Fri, 10 Jul 2009 19:30:56 +0800 Subject: ARM: S3C64XX: serial: Fix section mismatch warning Rename the structure to avoid the following warning: WARNING: vmlinux.o(.data+0x11ef4): Section mismatch in reference from the variable s3c6400_serial_drv to the function .devexit.text:s3c24xx_serial_remove() The variable s3c6400_serial_drv references the function __devexit s3c24xx_serial_remove() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, Signed-off-by: Ramax Lo Signed-off-by: Ben Dooks --- drivers/serial/s3c6400.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/serial/s3c6400.c b/drivers/serial/s3c6400.c index 48f1a3781f0..4be92ab5005 100644 --- a/drivers/serial/s3c6400.c +++ b/drivers/serial/s3c6400.c @@ -122,7 +122,7 @@ static int s3c6400_serial_probe(struct platform_device *dev) return s3c24xx_serial_probe(dev, &s3c6400_uart_inf); } -static struct platform_driver s3c6400_serial_drv = { +static struct platform_driver s3c6400_serial_driver = { .probe = s3c6400_serial_probe, .remove = __devexit_p(s3c24xx_serial_remove), .driver = { @@ -131,16 +131,16 @@ static struct platform_driver s3c6400_serial_drv = { }, }; -s3c24xx_console_init(&s3c6400_serial_drv, &s3c6400_uart_inf); +s3c24xx_console_init(&s3c6400_serial_driver, &s3c6400_uart_inf); static int __init s3c6400_serial_init(void) { - return s3c24xx_serial_init(&s3c6400_serial_drv, &s3c6400_uart_inf); + return s3c24xx_serial_init(&s3c6400_serial_driver, &s3c6400_uart_inf); } static void __exit s3c6400_serial_exit(void) { - platform_driver_unregister(&s3c6400_serial_drv); + platform_driver_unregister(&s3c6400_serial_driver); } module_init(s3c6400_serial_init); -- cgit v1.2.3 From 90a09c9cf78344d18e2438c3b87363b949629fa3 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Thu, 30 Jul 2009 16:40:37 -0700 Subject: Alan doesn't want to maintain tty code any more Not that anybody can blame him. It's a morass. But hey, it's way better than it _used_ to be, though, so thanks for all the fish. Signed-off-by: Linus Torvalds --- MAINTAINERS | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index 66a3865da88..79471ba4981 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -155,10 +155,9 @@ S: Maintained F: drivers/net/r8169.c 8250/16?50 (AND CLONE UARTS) SERIAL DRIVER -M: Alan Cox L: linux-serial@vger.kernel.org W: http://serial.sourceforge.net -S: Odd Fixes +S: Orphan F: drivers/serial/8250* F: include/linux/serial_8250.h @@ -4997,9 +4996,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial.git S: Maintained TTY LAYER -M: Alan Cox -S: Maintained -T: stgit http://zeniv.linux.org.uk/~alan/ttydev/ +S: Orphan F: drivers/char/tty_* F: drivers/serial/serial_core.c F: include/linux/serial_core.h -- cgit v1.2.3 From ec30c5f3a18722f8fcf8c83146a10b03ac4d9ff1 Mon Sep 17 00:00:00 2001 From: Masami Hiramatsu Date: Tue, 28 Jul 2009 19:47:23 -0400 Subject: kprobes: Use kernel_text_address() for checking probe address Use kernel_text_address() for checking probe address instead of __kernel_text_address(), because __kernel_text_address() returns true for init functions even after relaseing those functions. That will hit a BUG() in text_poke(). Signed-off-by: Masami Hiramatsu Cc: Ananth N Mavinakayanahalli Cc: Jim Keniston Signed-off-by: Linus Torvalds --- kernel/kprobes.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 16b5739c516..0540948e29a 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -694,7 +694,7 @@ int __kprobes register_kprobe(struct kprobe *p) p->addr = addr; preempt_disable(); - if (!__kernel_text_address((unsigned long) p->addr) || + if (!kernel_text_address((unsigned long) p->addr) || in_kprobes_functions((unsigned long) p->addr)) { preempt_enable(); return -EINVAL; -- cgit v1.2.3 From bdc6340f4eb68295b1e7c0ade2356b56dca93d93 Mon Sep 17 00:00:00 2001 From: "Pallipadi, Venkatesh" Date: Thu, 30 Jul 2009 14:43:19 -0700 Subject: x86, pat: Fix set_memory_wc related corruption Changeset 3869c4aa18835c8c61b44bd0f3ace36e9d3b5bd0 that went in after 2.6.30-rc1 was a seemingly small change to _set_memory_wc() to make it complaint with SDM requirements. But, introduced a nasty bug, which can result in crash and/or strange corruptions when set_memory_wc is used. One such crash reported here http://lkml.org/lkml/2009/7/30/94 Actually, that changeset introduced two bugs. * change_page_attr_set() takes &addr as first argument and can the addr value might have changed on return, even for single page change_page_attr_set() call. That will make the second change_page_attr_set() in this routine operate on unrelated addr, that can eventually cause strange corruptions and bad page state crash. * The second change_page_attr_set() call, before setting _PAGE_CACHE_WC, should clear the earlier _PAGE_CACHE_UC_MINUS, as otherwise cache attribute will not be WC (will be UC instead). The patch below fixes both these problems. Sending a single patch to fix both the problems, as the change is to the same line of code. The change to have a addr_copy is not very clean. But, it is simpler than making more changes through various routines in pageattr.c. A huge thanks to Jerome for reporting this problem and providing a simple test case that helped us root cause the problem. Reported-by: Jerome Glisse Signed-off-by: Venkatesh Pallipadi Signed-off-by: Suresh Siddha LKML-Reference: <20090730214319.GA1889@linux-os.sc.intel.com> Acked-by: Dave Airlie Signed-off-by: H. Peter Anvin --- arch/x86/mm/pageattr.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 1b734d7a896..895d90e1a81 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -997,12 +997,15 @@ EXPORT_SYMBOL(set_memory_array_uc); int _set_memory_wc(unsigned long addr, int numpages) { int ret; + unsigned long addr_copy = addr; + ret = change_page_attr_set(&addr, numpages, __pgprot(_PAGE_CACHE_UC_MINUS), 0); - if (!ret) { - ret = change_page_attr_set(&addr, numpages, - __pgprot(_PAGE_CACHE_WC), 0); + ret = change_page_attr_set_clr(&addr_copy, numpages, + __pgprot(_PAGE_CACHE_WC), + __pgprot(_PAGE_CACHE_MASK), + 0, 0, NULL); } return ret; } -- cgit v1.2.3 From 95fc17aac45300f45968aacd97a536ddd8db8101 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 31 Jul 2009 12:39:15 +1000 Subject: md/raid6: release spare page at ->stop() Add missing call to safe_put_page from stop() by unifying open coded raid5_conf_t de-allocation under free_conf(). Cc: Signed-off-by: Dan Williams Signed-off-by: NeilBrown --- drivers/md/raid5.c | 26 ++++++++++++-------------- 1 file changed, 12 insertions(+), 14 deletions(-) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 37835538b58..39374230a46 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -4316,6 +4316,15 @@ raid5_size(mddev_t *mddev, sector_t sectors, int raid_disks) return sectors * (raid_disks - conf->max_degraded); } +static void free_conf(raid5_conf_t *conf) +{ + shrink_stripes(conf); + safe_put_page(conf->spare_page); + kfree(conf->disks); + kfree(conf->stripe_hashtbl); + kfree(conf); +} + static raid5_conf_t *setup_conf(mddev_t *mddev) { raid5_conf_t *conf; @@ -4447,11 +4456,7 @@ static raid5_conf_t *setup_conf(mddev_t *mddev) abort: if (conf) { - shrink_stripes(conf); - safe_put_page(conf->spare_page); - kfree(conf->disks); - kfree(conf->stripe_hashtbl); - kfree(conf); + free_conf(conf); return ERR_PTR(-EIO); } else return ERR_PTR(-ENOMEM); @@ -4629,12 +4634,8 @@ abort: md_unregister_thread(mddev->thread); mddev->thread = NULL; if (conf) { - shrink_stripes(conf); print_raid5_conf(conf); - safe_put_page(conf->spare_page); - kfree(conf->disks); - kfree(conf->stripe_hashtbl); - kfree(conf); + free_conf(conf); } mddev->private = NULL; printk(KERN_ALERT "raid5: failed to run raid set %s\n", mdname(mddev)); @@ -4649,13 +4650,10 @@ static int stop(mddev_t *mddev) md_unregister_thread(mddev->thread); mddev->thread = NULL; - shrink_stripes(conf); - kfree(conf->stripe_hashtbl); mddev->queue->backing_dev_info.congested_fn = NULL; blk_sync_queue(mddev->queue); /* the unplug fn references 'conf'*/ sysfs_remove_group(&mddev->kobj, &raid5_attrs_group); - kfree(conf->disks); - kfree(conf); + free_conf(conf); mddev->private = NULL; return 0; } -- cgit v1.2.3 From 97db39a1f6f69e906e98118392400de5217aa33a Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Sun, 26 Jul 2009 21:52:01 -0500 Subject: xfs: reduce bmv_count in xfs_vn_fiemap commit 6321e3ed2acf3ee9643cdd403e1c88605d7944ba caused the full bmv_count's worth of getbmapx structures to get allocated; telling it to do MAXEXTNUM was a bit insane, resulting in ENOMEM every time. Chop it down to something reasonable, the number of slots in the caller's input buffer. If this is too large the caller may get ENOMEM but the reason should not be a mystery, and they can try again with something smaller. We add 1 to the value because in the normal getbmap world, bmv_count includes the header and xfs_getbmap does: nex = bmv->bmv_count - 1; if (nex <= 0) return XFS_ERROR(EINVAL); Signed-off-by: Eric Sandeen Reviewed-by: Olaf Weber Reviewed-by: Christoph Hellwig Signed-off-by: Felix Blyakher --- fs/xfs/linux-2.6/xfs_iops.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c index 58973bb4603..8070b34cc28 100644 --- a/fs/xfs/linux-2.6/xfs_iops.c +++ b/fs/xfs/linux-2.6/xfs_iops.c @@ -680,8 +680,8 @@ xfs_vn_fiemap( else bm.bmv_length = BTOBB(length); - /* our formatter will tell xfs_getbmap when to stop. */ - bm.bmv_count = MAXEXTNUM; + /* We add one because in getbmap world count includes the header */ + bm.bmv_count = fieinfo->fi_extents_max + 1; bm.bmv_iflags = BMV_IF_PREALLOC; if (fieinfo->fi_flags & FIEMAP_FLAG_XATTR) bm.bmv_iflags |= BMV_IF_ATTRFORK; -- cgit v1.2.3 From c8a4051c3731b6db224482218cfd535ab9393ff8 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Fri, 31 Jul 2009 00:02:17 -0500 Subject: xfs: bump up nr_to_write in xfs_vm_writepage VM calculation for nr_to_write seems off. Bump it way up, this gets simple streaming writes zippy again. To be reviewed again after Jens' writeback changes. Signed-off-by: Christoph Hellwig Signed-off-by: Eric Sandeen Cc: Chris Mason Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher --- fs/xfs/linux-2.6/xfs_aops.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c index 7ec89fc05b2..aecf2519db7 100644 --- a/fs/xfs/linux-2.6/xfs_aops.c +++ b/fs/xfs/linux-2.6/xfs_aops.c @@ -1268,6 +1268,14 @@ xfs_vm_writepage( if (!page_has_buffers(page)) create_empty_buffers(page, 1 << inode->i_blkbits, 0); + + /* + * VM calculation for nr_to_write seems off. Bump it way + * up, this gets simple streaming writes zippy again. + * To be reviewed again after Jens' writeback changes. + */ + wbc->nr_to_write *= 4; + /* * Convert delayed allocate, unwritten or unmapped space * to real space and flush out to disk. -- cgit v1.2.3 From cbb4f2646d77b536ed2b1500ef6641083228ed8f Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Fri, 31 Jul 2009 08:55:48 +0200 Subject: io context: fix ref counting Commit d9c7d394a8ebacb60097b192939ae9f15235225e ("block: prevent possible io_context->refcount overflow") mistakenly changed atomic_inc(&ioc->nr_tasks) to atomic_long_inc(&ioc->refcount). Signed-off-by: Li Zefan Acked-by: Nikanth Karthikesan Signed-off-by: Jens Axboe --- include/linux/iocontext.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/iocontext.h b/include/linux/iocontext.h index dd05434fa45..4da4a75c3f1 100644 --- a/include/linux/iocontext.h +++ b/include/linux/iocontext.h @@ -92,7 +92,7 @@ static inline struct io_context *ioc_task_link(struct io_context *ioc) * a race). */ if (ioc && atomic_long_inc_not_zero(&ioc->refcount)) { - atomic_long_inc(&ioc->refcount); + atomic_inc(&ioc->nr_tasks); return ioc; } -- cgit v1.2.3 From aa563af763373a7e67a7b8fdb427d2a2fcbeab3b Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 31 Jul 2009 10:05:11 +0200 Subject: ALSA: hda - Increase PCM stream name buf in patch_realtek.c The name buf with size 16 is too short for some codec names, e.g. truncated like "ALC861-VD Analo". Now the size is doubled. Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 8c8b273116f..b95df5d5dcc 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -275,13 +275,13 @@ struct alc_spec { */ unsigned int num_init_verbs; - char stream_name_analog[16]; /* analog PCM stream */ + char stream_name_analog[32]; /* analog PCM stream */ struct hda_pcm_stream *stream_analog_playback; struct hda_pcm_stream *stream_analog_capture; struct hda_pcm_stream *stream_analog_alt_playback; struct hda_pcm_stream *stream_analog_alt_capture; - char stream_name_digital[16]; /* digital PCM stream */ + char stream_name_digital[32]; /* digital PCM stream */ struct hda_pcm_stream *stream_digital_playback; struct hda_pcm_stream *stream_digital_capture; -- cgit v1.2.3 From f065fabc864f4c98857bf67caa2365e9f8545751 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Fri, 31 Jul 2009 08:32:03 +0200 Subject: ALSA: sound/aoa: Add kmalloc NULL tests Check that the result of kzalloc is not NULL before a dereference. The semantic match that finds this problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // @@ expression *x; identifier f; constant char *C; @@ x = \(kmalloc\|kcalloc\|kzalloc\)(...); ... when != x == NULL when != x != NULL when != (x || ...) ( kfree(x) | f(...,C,...,x,...) | *f(...,x,...) | *x->f ) // Signed-off-by: Julia Lawall Signed-off-by: Takashi Iwai --- sound/aoa/core/gpio-pmf.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sound/aoa/core/gpio-pmf.c b/sound/aoa/core/gpio-pmf.c index 5ca2220eac7..1dd0c28d1fb 100644 --- a/sound/aoa/core/gpio-pmf.c +++ b/sound/aoa/core/gpio-pmf.c @@ -182,6 +182,10 @@ static int pmf_set_notify(struct gpio_runtime *rt, if (!old && notify) { irq_client = kzalloc(sizeof(struct pmf_irq_client), GFP_KERNEL); + if (!irq_client) { + err = -ENOMEM; + goto out_unlock; + } irq_client->data = notif; irq_client->handler = pmf_handle_notify_irq; irq_client->owner = THIS_MODULE; -- cgit v1.2.3 From 6de7e356faf54aa75de5b624bbce28a5b776dfa8 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Thu, 18 Jun 2009 10:19:12 +0200 Subject: lib/scatterlist: add a flags to signalize mapping direction sg_miter_start() is currently unaware of the direction of the copy process (to or from the scatter list). It is important to know the direction because the page has to be flushed in case the data written is seen on a different mapping in user land on cache incoherent architectures. Signed-off-by: Sebastian Andrzej Siewior Acked-by: FUJITA Tomonori Acked-by: Tejun Heo Signed-off-by: Pierre Ossman --- include/linux/scatterlist.h | 2 ++ lib/scatterlist.c | 16 ++++++++++++---- 2 files changed, 14 insertions(+), 4 deletions(-) diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h index e5996984ddd..9aaf5bfdad1 100644 --- a/include/linux/scatterlist.h +++ b/include/linux/scatterlist.h @@ -242,6 +242,8 @@ size_t sg_copy_to_buffer(struct scatterlist *sgl, unsigned int nents, */ #define SG_MITER_ATOMIC (1 << 0) /* use kmap_atomic */ +#define SG_MITER_TO_SG (1 << 1) /* flush back to phys on unmap */ +#define SG_MITER_FROM_SG (1 << 2) /* nop */ struct sg_mapping_iter { /* the following three fields can be accessed directly */ diff --git a/lib/scatterlist.c b/lib/scatterlist.c index a295e404e90..0d475d8167b 100644 --- a/lib/scatterlist.c +++ b/lib/scatterlist.c @@ -314,6 +314,7 @@ void sg_miter_start(struct sg_mapping_iter *miter, struct scatterlist *sgl, miter->__sg = sgl; miter->__nents = nents; miter->__offset = 0; + WARN_ON(!(flags & (SG_MITER_TO_SG | SG_MITER_FROM_SG))); miter->__flags = flags; } EXPORT_SYMBOL(sg_miter_start); @@ -394,6 +395,9 @@ void sg_miter_stop(struct sg_mapping_iter *miter) if (miter->addr) { miter->__offset += miter->consumed; + if (miter->__flags & SG_MITER_TO_SG) + flush_kernel_dcache_page(miter->page); + if (miter->__flags & SG_MITER_ATOMIC) { WARN_ON(!irqs_disabled()); kunmap_atomic(miter->addr, KM_BIO_SRC_IRQ); @@ -426,8 +430,14 @@ static size_t sg_copy_buffer(struct scatterlist *sgl, unsigned int nents, unsigned int offset = 0; struct sg_mapping_iter miter; unsigned long flags; + unsigned int sg_flags = SG_MITER_ATOMIC; + + if (to_buffer) + sg_flags |= SG_MITER_FROM_SG; + else + sg_flags |= SG_MITER_TO_SG; - sg_miter_start(&miter, sgl, nents, SG_MITER_ATOMIC); + sg_miter_start(&miter, sgl, nents, sg_flags); local_irq_save(flags); @@ -438,10 +448,8 @@ static size_t sg_copy_buffer(struct scatterlist *sgl, unsigned int nents, if (to_buffer) memcpy(buf + offset, miter.addr, len); - else { + else memcpy(miter.addr, buf + offset, len); - flush_kernel_dcache_page(miter.page); - } offset += len; } -- cgit v1.2.3 From da60a91d012bcb10bc5bcd86d585c4281742832c Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Thu, 18 Jun 2009 09:33:32 +0200 Subject: sdhci: use SG_MITER_TO_SG/SG_MITER_FROM_SG so the page will be flushed on unmap on ARCH which need it. Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Pierre Ossman --- drivers/mmc/host/sdhci.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 62041c7e924..fc96f8cb9c0 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -773,8 +773,14 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data) } if (!(host->flags & SDHCI_REQ_USE_DMA)) { - sg_miter_start(&host->sg_miter, - data->sg, data->sg_len, SG_MITER_ATOMIC); + int flags; + + flags = SG_MITER_ATOMIC; + if (host->data->flags & MMC_DATA_READ) + flags |= SG_MITER_TO_SG; + else + flags |= SG_MITER_FROM_SG; + sg_miter_start(&host->sg_miter, data->sg, data->sg_len, flags); host->blocks = data->blocks; } -- cgit v1.2.3 From 4b2a108cd0d34880fe9d932258ca5b2ccebcd05e Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Mon, 22 Jun 2009 09:18:05 +0200 Subject: cb710: use SG_MITER_TO_SG/SG_MITER_FROM_SG MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit the code allready uses flush_kernel_dcache_page(). This patch updates the driver to the recent sg API changes which require that either SG_MITER_TO_SG or SG_MITER_FROM_SG is set. SG_MITER_TO_SG calls flush_kernel_dcache_page() in sg_mitter_stop() Signed-off-by: Sebastian Andrzej Siewior Acked-by: Michał Mirosław Signed-off-by: Pierre Ossman --- drivers/misc/cb710/sgbuf2.c | 4 ---- drivers/mmc/host/cb710-mmc.c | 6 +++--- include/linux/cb710.h | 29 +++-------------------------- 3 files changed, 6 insertions(+), 33 deletions(-) diff --git a/drivers/misc/cb710/sgbuf2.c b/drivers/misc/cb710/sgbuf2.c index d38a7acdb6e..d019746551f 100644 --- a/drivers/misc/cb710/sgbuf2.c +++ b/drivers/misc/cb710/sgbuf2.c @@ -114,7 +114,6 @@ static void sg_dwiter_write_slow(struct sg_mapping_iter *miter, uint32_t data) if (!left) return; addr += len; - flush_kernel_dcache_page(miter->page); } while (sg_dwiter_next(miter)); } @@ -142,9 +141,6 @@ void cb710_sg_dwiter_write_next_block(struct sg_mapping_iter *miter, uint32_t da return; } else sg_dwiter_write_slow(miter, data); - - if (miter->length == miter->consumed) - flush_kernel_dcache_page(miter->page); } EXPORT_SYMBOL_GPL(cb710_sg_dwiter_write_next_block); diff --git a/drivers/mmc/host/cb710-mmc.c b/drivers/mmc/host/cb710-mmc.c index 11efefb1af5..4e72964a7b4 100644 --- a/drivers/mmc/host/cb710-mmc.c +++ b/drivers/mmc/host/cb710-mmc.c @@ -278,7 +278,7 @@ static int cb710_mmc_receive(struct cb710_slot *slot, struct mmc_data *data) if (unlikely(data->blksz & 15 && (data->blocks != 1 || data->blksz != 8))) return -EINVAL; - sg_miter_start(&miter, data->sg, data->sg_len, 0); + sg_miter_start(&miter, data->sg, data->sg_len, SG_MITER_TO_SG); cb710_modify_port_8(slot, CB710_MMC_CONFIG2_PORT, 15, CB710_MMC_C2_READ_PIO_SIZE_MASK); @@ -307,7 +307,7 @@ static int cb710_mmc_receive(struct cb710_slot *slot, struct mmc_data *data) goto out; } out: - cb710_sg_miter_stop_writing(&miter); + sg_miter_stop(&miter); return err; } @@ -322,7 +322,7 @@ static int cb710_mmc_send(struct cb710_slot *slot, struct mmc_data *data) if (unlikely(data->blocks > 1 && data->blksz & 15)) return -EINVAL; - sg_miter_start(&miter, data->sg, data->sg_len, 0); + sg_miter_start(&miter, data->sg, data->sg_len, SG_MITER_FROM_SG); cb710_modify_port_8(slot, CB710_MMC_CONFIG2_PORT, 0, CB710_MMC_C2_READ_PIO_SIZE_MASK); diff --git a/include/linux/cb710.h b/include/linux/cb710.h index 63bc9a4d292..8cc10411bab 100644 --- a/include/linux/cb710.h +++ b/include/linux/cb710.h @@ -140,29 +140,6 @@ void cb710_dump_regs(struct cb710_chip *chip, unsigned dump); #include #include -/** - * cb710_sg_miter_stop_writing - stop mapping iteration after writing - * @miter: sg mapping iter to be stopped - * - * Description: - * Stops mapping iterator @miter. @miter should have been started - * started using sg_miter_start(). A stopped iteration can be - * resumed by calling sg_miter_next() on it. This is useful when - * resources (kmap) need to be released during iteration. - * - * This is a convenience wrapper that will be optimized out for arches - * that don't need flush_kernel_dcache_page(). - * - * Context: - * IRQ disabled if the SG_MITER_ATOMIC is set. Don't care otherwise. - */ -static inline void cb710_sg_miter_stop_writing(struct sg_mapping_iter *miter) -{ - if (miter->page) - flush_kernel_dcache_page(miter->page); - sg_miter_stop(miter); -} - /* * 32-bit PIO mapping sg iterator * @@ -171,12 +148,12 @@ static inline void cb710_sg_miter_stop_writing(struct sg_mapping_iter *miter) * without DMA support). * * Best-case reading (transfer from device): - * sg_miter_start(); + * sg_miter_start(, SG_MITER_TO_SG); * cb710_sg_dwiter_write_from_io(); - * cb710_sg_miter_stop_writing(); + * sg_miter_stop(); * * Best-case writing (transfer to device): - * sg_miter_start(); + * sg_miter_start(, SG_MITER_FROM_SG); * cb710_sg_dwiter_read_to_io(); * sg_miter_stop(); */ -- cgit v1.2.3 From a9239d750d9991f2feee78fc5669a4613abc1adb Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Sun, 28 Jun 2009 09:26:31 -0700 Subject: imxmmc: Remove unnecessary semicolons Signed-off-by: Joe Perches Acked-by: Pavel Pisa Signed-off-by: Pierre Ossman --- drivers/mmc/host/imxmmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/host/imxmmc.c b/drivers/mmc/host/imxmmc.c index e0be21a4a69..bf98d7cc928 100644 --- a/drivers/mmc/host/imxmmc.c +++ b/drivers/mmc/host/imxmmc.c @@ -652,7 +652,7 @@ static irqreturn_t imxmci_irq(int irq, void *devid) set_bit(IMXMCI_PEND_STARTED_b, &host->pending_events); tasklet_schedule(&host->tasklet); - return IRQ_RETVAL(handled);; + return IRQ_RETVAL(handled); } static void imxmci_tasklet_fnc(unsigned long data) -- cgit v1.2.3 From 3822a0e38c329a598cb6f5baa16be7504e0db8d9 Mon Sep 17 00:00:00 2001 From: Pierre Ossman Date: Fri, 31 Jul 2009 12:27:28 +0200 Subject: mmc: orphan subsystem I do not have the time to take care of this, so remove myself as maintainer. Signed-off-by: Pierre Ossman --- MAINTAINERS | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index 79471ba4981..d6befb2c470 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3420,8 +3420,7 @@ S: Supported F: drivers/mfd/ MULTIMEDIA CARD (MMC), SECURE DIGITAL (SD) AND SDIO SUBSYSTEM -M: Pierre Ossman -S: Maintained +S: Orphan F: drivers/mmc/ F: include/linux/mmc/ -- cgit v1.2.3 From c7121843685de2bf7f3afd3ae1d6a146010bf1fc Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Tue, 28 Jul 2009 14:09:55 -0700 Subject: clocksource: Save mult_orig in clocksource_disable() To fix the common case where ->enable() does not set up mult, make sure mult_orig is saved in mult on disable. Also add comments to explain why we do this. Signed-off-by: Magnus Damm Cc: johnstul@us.ibm.com Cc: lethal@linux-sh.org Cc: akpm@linux-foundation.org LKML-Reference: <20090618152432.10136.9932.sendpatchset@rx1.opensource.se> Signed-off-by: Thomas Gleixner --- include/linux/clocksource.h | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h index c56457c8334..1219be4fb42 100644 --- a/include/linux/clocksource.h +++ b/include/linux/clocksource.h @@ -293,7 +293,12 @@ static inline int clocksource_enable(struct clocksource *cs) if (cs->enable) ret = cs->enable(cs); - /* save mult_orig on enable */ + /* + * The frequency may have changed while the clocksource + * was disabled. If so the code in ->enable() must update + * the mult value to reflect the new frequency. Make sure + * mult_orig follows this change. + */ cs->mult_orig = cs->mult; return ret; @@ -309,6 +314,13 @@ static inline int clocksource_enable(struct clocksource *cs) */ static inline void clocksource_disable(struct clocksource *cs) { + /* + * Save mult_orig in mult so clocksource_enable() can + * restore the value regardless if ->enable() updates + * the value of mult or not. + */ + cs->mult = cs->mult_orig; + if (cs->disable) cs->disable(cs); } -- cgit v1.2.3 From 6606bb97e146a387932efee263745b7240a11193 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Fri, 31 Jul 2009 11:03:58 -0400 Subject: Btrfs: fix btrfs_remove_from_free_space corner case Yan Zheng hit a problem where we tried to remove some free space but failed because we couldn't find the free space entry. This is because the free space was held within a bitmap that had a starting offset well before the actual offset of the free space, and there were free space extents that were in the same range as that offset, so tree_search_offset returned with NULL because we couldn't find a free space extent that had that offset. This is fixed by making sure that if we fail to find the entry, we re-search again with bitmap_only set to 1 and do an offset_to_bitmap so we can get the appropriate bitmap. A similar problem happens in btrfs_alloc_from_bitmap for the clustering code, but that is not as bad since we will just go and redo our cluster allocation. Also this adds some debugging checks to make sure that the free space we are trying to remove from the bitmap is in fact there. This can probably go away after a while, but since this code is only used by the tree-logging stuff it would be nice to run with it for a while to make sure there are no problems. Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/free-space-cache.c | 73 +++++++++++++++++++++++++++++++++++++++------ 1 file changed, 64 insertions(+), 9 deletions(-) diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index af99b78b288..5edcee3a617 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -414,11 +414,29 @@ static noinline int remove_from_bitmap(struct btrfs_block_group_cache *block_gro u64 *offset, u64 *bytes) { u64 end; + u64 search_start, search_bytes; + int ret; again: end = bitmap_info->offset + (u64)(BITS_PER_BITMAP * block_group->sectorsize) - 1; + /* + * XXX - this can go away after a few releases. + * + * since the only user of btrfs_remove_free_space is the tree logging + * stuff, and the only way to test that is under crash conditions, we + * want to have this debug stuff here just in case somethings not + * working. Search the bitmap for the space we are trying to use to + * make sure its actually there. If its not there then we need to stop + * because something has gone wrong. + */ + search_start = *offset; + search_bytes = *bytes; + ret = search_bitmap(block_group, bitmap_info, &search_start, + &search_bytes); + BUG_ON(ret < 0 || search_start != *offset); + if (*offset > bitmap_info->offset && *offset + *bytes > end) { bitmap_clear_bits(block_group, bitmap_info, *offset, end - *offset + 1); @@ -430,6 +448,7 @@ again: } if (*bytes) { + struct rb_node *next = rb_next(&bitmap_info->offset_index); if (!bitmap_info->bytes) { unlink_free_space(block_group, bitmap_info); kfree(bitmap_info->bitmap); @@ -438,16 +457,36 @@ again: recalculate_thresholds(block_group); } - bitmap_info = tree_search_offset(block_group, - offset_to_bitmap(block_group, - *offset), - 1, 0); - if (!bitmap_info) + /* + * no entry after this bitmap, but we still have bytes to + * remove, so something has gone wrong. + */ + if (!next) return -EINVAL; + bitmap_info = rb_entry(next, struct btrfs_free_space, + offset_index); + + /* + * if the next entry isn't a bitmap we need to return to let the + * extent stuff do its work. + */ if (!bitmap_info->bitmap) return -EAGAIN; + /* + * Ok the next item is a bitmap, but it may not actually hold + * the information for the rest of this free space stuff, so + * look for it, and if we don't find it return so we can try + * everything over again. + */ + search_start = *offset; + search_bytes = *bytes; + ret = search_bitmap(block_group, bitmap_info, &search_start, + &search_bytes); + if (ret < 0 || search_start != *offset) + return -EAGAIN; + goto again; } else if (!bitmap_info->bytes) { unlink_free_space(block_group, bitmap_info); @@ -644,8 +683,17 @@ int btrfs_remove_free_space(struct btrfs_block_group_cache *block_group, again: info = tree_search_offset(block_group, offset, 0, 0); if (!info) { - WARN_ON(1); - goto out_lock; + /* + * oops didn't find an extent that matched the space we wanted + * to remove, look for a bitmap instead + */ + info = tree_search_offset(block_group, + offset_to_bitmap(block_group, offset), + 1, 0); + if (!info) { + WARN_ON(1); + goto out_lock; + } } if (info->bytes < bytes && rb_next(&info->offset_index)) { @@ -957,8 +1005,15 @@ static u64 btrfs_alloc_from_bitmap(struct btrfs_block_group_cache *block_group, if (cluster->block_group != block_group) goto out; - entry = tree_search_offset(block_group, search_start, 0, 0); - + /* + * search_start is the beginning of the bitmap, but at some point it may + * be a good idea to point to the actual start of the free area in the + * bitmap, so do the offset_to_bitmap trick anyway, and set bitmap_only + * to 1 to make sure we get the bitmap entry + */ + entry = tree_search_offset(block_group, + offset_to_bitmap(block_group, search_start), + 1, 0); if (!entry || !entry->bitmap) goto out; -- cgit v1.2.3 From 013f1b12f4fc479f697acae2f31bad220162cd03 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Fri, 31 Jul 2009 14:57:55 -0400 Subject: Btrfs: make sure the async caching thread advances the key The async caching thread can end up looping forever if a given search puts it at the last key in a leaf. It will end up calling btrfs_next_leaf and then checking if it needs to politely drop the read semaphore. Most of the time this looping isn't noticed because it is able to make progress the next time around. But, during log replay, we wait on the async caching thread to finish, and the async thread is waiting on the commit, and no progress is really made. The fix used here is to copy the key out of the next leaf, that way our search lands there properly. Signed-off-by: Chris Mason --- fs/btrfs/extent-tree.c | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index dc84daee6bc..72a2b9c28e9 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -265,10 +265,6 @@ static int caching_kthread(void *data) atomic_inc(&block_group->space_info->caching_threads); last = max_t(u64, block_group->key.objectid, BTRFS_SUPER_INFO_OFFSET); -again: - /* need to make sure the commit_root doesn't disappear */ - down_read(&fs_info->extent_commit_sem); - /* * We don't want to deadlock with somebody trying to allocate a new * extent for the extent root while also trying to search the extent @@ -282,6 +278,10 @@ again: key.objectid = last; key.offset = 0; btrfs_set_key_type(&key, BTRFS_EXTENT_ITEM_KEY); +again: + /* need to make sure the commit_root doesn't disappear */ + down_read(&fs_info->extent_commit_sem); + ret = btrfs_search_slot(NULL, fs_info->extent_root, &key, path, 0, 0); if (ret < 0) goto err; @@ -304,6 +304,19 @@ again: if (need_resched() || btrfs_transaction_in_commit(fs_info)) { + leaf = path->nodes[0]; + + /* this shouldn't happen, but if the + * leaf is empty just move on. + */ + if (btrfs_header_nritems(leaf) == 0) + break; + /* + * we need to copy the key out so that + * we are sure the next search advances + * us forward in the btree. + */ + btrfs_item_key_to_cpu(leaf, &key, 0); btrfs_release_path(fs_info->extent_root, path); up_read(&fs_info->extent_commit_sem); schedule_timeout(1); -- cgit v1.2.3 From ed680c4ad478d0fee9740f7d029087f181346564 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 31 Jul 2009 17:40:45 -0700 Subject: Linux 2.6.31-rc5 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 063d738405e..0d46615bffe 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 2 PATCHLEVEL = 6 SUBLEVEL = 31 -EXTRAVERSION = -rc4 +EXTRAVERSION = -rc5 NAME = Man-Eating Seals of Antiquity # *DOCUMENTATION* -- cgit v1.2.3 From fef246672b009cf3f7a74e2fc9a76932ef2eeed2 Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Fri, 31 Jul 2009 11:49:10 -0400 Subject: block: Make blk_queue_stack_limits use the new stacking interface blk_queue_stack_limits() has been superceded by blk_stack_limits() and disk_stack_limits(). Wrap the function call for now, we'll deprecate it later. Signed-off-by: Martin K. Petersen Signed-off-by: Jens Axboe --- block/blk-settings.c | 22 +--------------------- 1 file changed, 1 insertion(+), 21 deletions(-) diff --git a/block/blk-settings.c b/block/blk-settings.c index 8a3ea3bba10..8e86e2d2b14 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -433,27 +433,7 @@ EXPORT_SYMBOL(blk_queue_io_opt); **/ void blk_queue_stack_limits(struct request_queue *t, struct request_queue *b) { - /* zero is "infinity" */ - t->limits.max_sectors = min_not_zero(queue_max_sectors(t), - queue_max_sectors(b)); - - t->limits.max_hw_sectors = min_not_zero(queue_max_hw_sectors(t), - queue_max_hw_sectors(b)); - - t->limits.seg_boundary_mask = min_not_zero(queue_segment_boundary(t), - queue_segment_boundary(b)); - - t->limits.max_phys_segments = min_not_zero(queue_max_phys_segments(t), - queue_max_phys_segments(b)); - - t->limits.max_hw_segments = min_not_zero(queue_max_hw_segments(t), - queue_max_hw_segments(b)); - - t->limits.max_segment_size = min_not_zero(queue_max_segment_size(t), - queue_max_segment_size(b)); - - t->limits.logical_block_size = max(queue_logical_block_size(t), - queue_logical_block_size(b)); + blk_stack_limits(&t->limits, &b->limits, 0); if (!t->queue_lock) WARN_ON_ONCE(1); -- cgit v1.2.3 From 7c958e32649e0c35801762878fb0b6da8c55a515 Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Fri, 31 Jul 2009 11:49:11 -0400 Subject: block: Add a wrapper for setting minimum request size without a queue Introduce blk_limits_io_min() and make blk_queue_io_min() call it. Signed-off-by: Mike Snitzer Signed-off-by: Martin K. Petersen Signed-off-by: Jens Axboe --- block/blk-settings.c | 31 ++++++++++++++++++++++++------- include/linux/blkdev.h | 1 + 2 files changed, 25 insertions(+), 7 deletions(-) diff --git a/block/blk-settings.c b/block/blk-settings.c index 8e86e2d2b14..1f719743416 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -383,6 +383,29 @@ void blk_queue_alignment_offset(struct request_queue *q, unsigned int offset) } EXPORT_SYMBOL(blk_queue_alignment_offset); +/** + * blk_limits_io_min - set minimum request size for a device + * @limits: the queue limits + * @min: smallest I/O size in bytes + * + * Description: + * Some devices have an internal block size bigger than the reported + * hardware sector size. This function can be used to signal the + * smallest I/O the device can perform without incurring a performance + * penalty. + */ +void blk_limits_io_min(struct queue_limits *limits, unsigned int min) +{ + limits->io_min = min; + + if (limits->io_min < limits->logical_block_size) + limits->io_min = limits->logical_block_size; + + if (limits->io_min < limits->physical_block_size) + limits->io_min = limits->physical_block_size; +} +EXPORT_SYMBOL(blk_limits_io_min); + /** * blk_queue_io_min - set minimum request size for the queue * @q: the request queue for the device @@ -396,13 +419,7 @@ EXPORT_SYMBOL(blk_queue_alignment_offset); */ void blk_queue_io_min(struct request_queue *q, unsigned int min) { - q->limits.io_min = min; - - if (q->limits.io_min < q->limits.logical_block_size) - q->limits.io_min = q->limits.logical_block_size; - - if (q->limits.io_min < q->limits.physical_block_size) - q->limits.io_min = q->limits.physical_block_size; + blk_limits_io_min(&q->limits, min); } EXPORT_SYMBOL(blk_queue_io_min); diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index e7cb5dbf6c2..69103e053c9 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -913,6 +913,7 @@ extern void blk_queue_logical_block_size(struct request_queue *, unsigned short) extern void blk_queue_physical_block_size(struct request_queue *, unsigned short); extern void blk_queue_alignment_offset(struct request_queue *q, unsigned int alignment); +extern void blk_limits_io_min(struct queue_limits *limits, unsigned int min); extern void blk_queue_io_min(struct request_queue *q, unsigned int min); extern void blk_queue_io_opt(struct request_queue *q, unsigned int opt); extern void blk_set_default_limits(struct queue_limits *lim); -- cgit v1.2.3 From 70dd5bf3b99964d52862ad2810c24cc32a553535 Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Fri, 31 Jul 2009 11:49:12 -0400 Subject: block: Stack optimal I/O size When stacking block devices ensure that optimal I/O size is scaled accordingly. Signed-off-by: Martin K. Petersen Reviewed-by: Mike Snitzer Signed-off-by: Jens Axboe --- block/blk-settings.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/block/blk-settings.c b/block/blk-settings.c index 1f719743416..e1327ddfc13 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -7,6 +7,7 @@ #include #include #include /* for max_pfn/max_low_pfn */ +#include #include "blk.h" @@ -520,6 +521,16 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b, return -1; } + /* Find lcm() of optimal I/O size */ + if (t->io_opt && b->io_opt) + t->io_opt = (t->io_opt * b->io_opt) / gcd(t->io_opt, b->io_opt); + else if (b->io_opt) + t->io_opt = b->io_opt; + + /* Verify that optimal I/O size is a multiple of io_min */ + if (t->io_min && t->io_opt % t->io_min) + return -1; + return 0; } EXPORT_SYMBOL(blk_stack_limits); -- cgit v1.2.3 From 7e5f5fb09e6fc657f21816b5a18ba645a913368e Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Fri, 31 Jul 2009 11:49:13 -0400 Subject: block: Update topology documentation Update topology comments and sysfs documentation based upon discussions with Neil Brown. Signed-off-by: Martin K. Petersen Signed-off-by: Jens Axboe --- Documentation/ABI/testing/sysfs-block | 37 ++++++++++++++++++++++------------- block/blk-settings.c | 19 ++++++++++++------ 2 files changed, 36 insertions(+), 20 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-block b/Documentation/ABI/testing/sysfs-block index cbbd3e06994..5f3bedaf8e3 100644 --- a/Documentation/ABI/testing/sysfs-block +++ b/Documentation/ABI/testing/sysfs-block @@ -94,28 +94,37 @@ What: /sys/block//queue/physical_block_size Date: May 2009 Contact: Martin K. Petersen Description: - This is the smallest unit the storage device can write - without resorting to read-modify-write operation. It is - usually the same as the logical block size but may be - bigger. One example is SATA drives with 4KB sectors - that expose a 512-byte logical block size to the - operating system. + This is the smallest unit a physical storage device can + write atomically. It is usually the same as the logical + block size but may be bigger. One example is SATA + drives with 4KB sectors that expose a 512-byte logical + block size to the operating system. For stacked block + devices the physical_block_size variable contains the + maximum physical_block_size of the component devices. What: /sys/block//queue/minimum_io_size Date: April 2009 Contact: Martin K. Petersen Description: - Storage devices may report a preferred minimum I/O size, - which is the smallest request the device can perform - without incurring a read-modify-write penalty. For disk - drives this is often the physical block size. For RAID - arrays it is often the stripe chunk size. + Storage devices may report a granularity or preferred + minimum I/O size which is the smallest request the + device can perform without incurring a performance + penalty. For disk drives this is often the physical + block size. For RAID arrays it is often the stripe + chunk size. A properly aligned multiple of + minimum_io_size is the preferred request size for + workloads where a high number of I/O operations is + desired. What: /sys/block//queue/optimal_io_size Date: April 2009 Contact: Martin K. Petersen Description: Storage devices may report an optimal I/O size, which is - the device's preferred unit of receiving I/O. This is - rarely reported for disk drives. For RAID devices it is - usually the stripe width or the internal block size. + the device's preferred unit for sustained I/O. This is + rarely reported for disk drives. For RAID arrays it is + usually the stripe width or the internal track size. A + properly aligned multiple of optimal_io_size is the + preferred request size for workloads where sustained + throughput is desired. If no optimal I/O size is + reported this file contains 0. diff --git a/block/blk-settings.c b/block/blk-settings.c index e1327ddfc13..476d8706507 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -413,10 +413,13 @@ EXPORT_SYMBOL(blk_limits_io_min); * @min: smallest I/O size in bytes * * Description: - * Some devices have an internal block size bigger than the reported - * hardware sector size. This function can be used to signal the - * smallest I/O the device can perform without incurring a performance - * penalty. + * Storage devices may report a granularity or preferred minimum I/O + * size which is the smallest request the device can perform without + * incurring a performance penalty. For disk drives this is often the + * physical block size. For RAID arrays it is often the stripe chunk + * size. A properly aligned multiple of minimum_io_size is the + * preferred request size for workloads where a high number of I/O + * operations is desired. */ void blk_queue_io_min(struct request_queue *q, unsigned int min) { @@ -430,8 +433,12 @@ EXPORT_SYMBOL(blk_queue_io_min); * @opt: optimal request size in bytes * * Description: - * Drivers can call this function to set the preferred I/O request - * size for devices that report such a value. + * Storage devices may report an optimal I/O size, which is the + * device's preferred unit for sustained I/O. This is rarely reported + * for disk drives. For RAID arrays it is usually the stripe width or + * the internal track size. A properly aligned multiple of + * optimal_io_size is the preferred request size for workloads where + * sustained throughput is desired. */ void blk_queue_io_opt(struct request_queue *q, unsigned int opt) { -- cgit v1.2.3 From 2d1b6949d2c855f195de0f5146625015ecca3944 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Sat, 1 Aug 2009 13:15:36 +0200 Subject: perf_counter tools: Fix link errors with older toolchains On older distros (F8 for example) the perf build could fail with such missing symbols: LINK perf /usr/lib/gcc/x86_64-redhat-linux/4.3.2/../../../../lib64/libbfd.a(bfd.o): In function `bfd_demangle': (.text+0x2b3): undefined reference to `cplus_demangle' /usr/lib/gcc/x86_64-redhat-linux/4.3.2/../../../../lib64/libbfd.a(bfd.o): In function `bfd_demangle': Link in -liberty too. Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker LKML-Reference: Signed-off-by: Ingo Molnar --- tools/perf/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/Makefile b/tools/perf/Makefile index a5e9b876ca0..4b20fa47c3a 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -345,7 +345,7 @@ BUILTIN_OBJS += builtin-stat.o BUILTIN_OBJS += builtin-top.o PERFLIBS = $(LIB_FILE) -EXTLIBS = -lbfd +EXTLIBS = -lbfd -liberty # # Platform specific tweaks -- cgit v1.2.3 From a97778457f22181e8c38c4cd7d7e528378738a98 Mon Sep 17 00:00:00 2001 From: Ryusuke Konishi Date: Tue, 28 Jul 2009 17:55:29 +0900 Subject: nilfs2: fix oops due to inconsistent state in page with discrete b-tree nodes Andrea Gelmini gave me a report that a kernel oops hit on a nilfs filesystem with a 1KB block size when doing rsync. This turned out to be caused by an inconsistency of dirty state between a page and its buffers storing b-tree node blocks. If the page had multiple buffers split over multiple logs, and if the logs were written at a time, a dirty flag remained in the page even every dirty flag in the buffers was cleared. This will fix the failure by dropping the dirty flag properly for pages with the discrete multiple b-tree nodes. Reported-by: Andrea Gelmini Signed-off-by: Ryusuke Konishi Tested-by: Andrea Gelmini Cc: stable@kernel.org --- fs/nilfs2/segment.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c index 8b5e4778cf2..51ff3d0a4ee 100644 --- a/fs/nilfs2/segment.c +++ b/fs/nilfs2/segment.c @@ -1859,12 +1859,26 @@ static void nilfs_end_page_io(struct page *page, int err) if (!page) return; - if (buffer_nilfs_node(page_buffers(page)) && !PageWriteback(page)) + if (buffer_nilfs_node(page_buffers(page)) && !PageWriteback(page)) { /* * For b-tree node pages, this function may be called twice * or more because they might be split in a segment. */ + if (PageDirty(page)) { + /* + * For pages holding split b-tree node buffers, dirty + * flag on the buffers may be cleared discretely. + * In that case, the page is once redirtied for + * remaining buffers, and it must be cancelled if + * all the buffers get cleaned later. + */ + lock_page(page); + if (nilfs_page_buffers_clean(page)) + __nilfs_clear_page_dirty(page); + unlock_page(page); + } return; + } __nilfs_end_page_io(page, err); } -- cgit v1.2.3 From 0083fc2c50e6c5127c2802ad323adf8143ab7856 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 1 Aug 2009 10:34:56 -0700 Subject: do_sigaltstack: avoid copying 'stack_t' as a structure to user space Ulrich Drepper correctly points out that there is generally padding in the structure on 64-bit hosts, and that copying the structure from kernel to user space can leak information from the kernel stack in those padding bytes. Avoid the whole issue by just copying the three members one by one instead, which also means that the function also can avoid the need for a stack frame. This also happens to match how we copy the new structure from user space, so it all even makes sense. [ The obvious solution of adding a memset() generates horrid code, gcc does really stupid things. ] Reported-by: Ulrich Drepper Signed-off-by: Linus Torvalds --- kernel/signal.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/kernel/signal.c b/kernel/signal.c index ccf1ceedaeb..f268372c0cc 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -2454,11 +2454,9 @@ do_sigaltstack (const stack_t __user *uss, stack_t __user *uoss, unsigned long s stack_t oss; int error; - if (uoss) { - oss.ss_sp = (void __user *) current->sas_ss_sp; - oss.ss_size = current->sas_ss_size; - oss.ss_flags = sas_ss_flags(sp); - } + oss.ss_sp = (void __user *) current->sas_ss_sp; + oss.ss_size = current->sas_ss_size; + oss.ss_flags = sas_ss_flags(sp); if (uss) { void __user *ss_sp; @@ -2501,13 +2499,16 @@ do_sigaltstack (const stack_t __user *uss, stack_t __user *uoss, unsigned long s current->sas_ss_size = ss_size; } + error = 0; if (uoss) { error = -EFAULT; - if (copy_to_user(uoss, &oss, sizeof(oss))) + if (!access_ok(VERIFY_WRITE, uoss, sizeof(*uoss))) goto out; + error = __put_user(oss.ss_sp, &uoss->ss_sp) | + __put_user(oss.ss_size, &uoss->ss_size) | + __put_user(oss.ss_flags, &uoss->ss_flags); } - error = 0; out: return error; } -- cgit v1.2.3 From 0dd8486b5cfe8048e0613334659d9252ecd1b08a Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 1 Aug 2009 11:18:56 -0700 Subject: do_sigaltstack: small cleanups The previous commit ("do_sigaltstack: avoid copying 'stack_t' as a structure to user space") fixed a real bug. This one just cleans up the copy from user space to that gcc can generate better code for it (and so that it looks the same as the later copy back to user space). Signed-off-by: Linus Torvalds --- kernel/signal.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/kernel/signal.c b/kernel/signal.c index f268372c0cc..64c5deeaca5 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -2464,10 +2464,12 @@ do_sigaltstack (const stack_t __user *uss, stack_t __user *uoss, unsigned long s int ss_flags; error = -EFAULT; - if (!access_ok(VERIFY_READ, uss, sizeof(*uss)) - || __get_user(ss_sp, &uss->ss_sp) - || __get_user(ss_flags, &uss->ss_flags) - || __get_user(ss_size, &uss->ss_size)) + if (!access_ok(VERIFY_READ, uss, sizeof(*uss))) + goto out; + error = __get_user(ss_sp, &uss->ss_sp) | + __get_user(ss_flags, &uss->ss_flags) | + __get_user(ss_size, &uss->ss_size); + if (error) goto out; error = -EPERM; -- cgit v1.2.3 From 550e7fd8afb7664ae7cedb398c407694e2bf7d3c Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Sat, 1 Aug 2009 12:04:17 -0300 Subject: thinkpad-acpi: disable broken bay and dock subdrivers Currently, the ThinkPad-ACPI bay and dock drivers are completely broken, and cause a NULL pointer derreference in kernel mode (and, therefore, an OOPS) when they try to issue events (i.e. on dock, undock, bay ejection, etc). OTOH, the standard ACPI dock driver can handle the hotplug bays and docks of the ThinkPads just fine (including batteries) as of 2.6.27. In fact, it does a much better job of it than thinkpad-acpi ever did. It is just not worth the hassle to find a way to fix this crap without breaking the (deprecated) thinkpad-acpi dock/bay ABI. This is old, deprecated code that sees little testing or use. As a quick fix suitable for -stable backports, mark the thinkpad-acpi bay and dock subdrivers as BROKEN in Kconfig. The dead code will be removed by a later patch. This fixes bugzilla #13669, and should be applied to 2.6.27 and later. Signed-off-by: Henrique de Moraes Holschuh Reported-by: Joerg Platte Cc: stable@kernel.org Signed-off-by: Len Brown --- drivers/platform/x86/Kconfig | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 46dad12f952..6335f63892d 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -281,6 +281,7 @@ config THINKPAD_ACPI_DOCK bool "Legacy Docking Station Support" depends on THINKPAD_ACPI depends on ACPI_DOCK=n + depends on BROKEN default n ---help--- Allows the thinkpad_acpi driver to handle docking station events. @@ -294,7 +295,8 @@ config THINKPAD_ACPI_DOCK config THINKPAD_ACPI_BAY bool "Legacy Removable Bay Support" depends on THINKPAD_ACPI - default y + depends on BROKEN + default n ---help--- Allows the thinkpad_acpi driver to handle removable bays. It will electrically disable the device in the bay, and also generate -- cgit v1.2.3 From 1f6fc2de9525e34ee93bd392fa046369a8cfbf1e Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Sat, 1 Aug 2009 12:04:18 -0300 Subject: thinkpad-acpi: remove dock and bay subdrivers The standard ACPI dock driver can handle the hotplug bays and docks of the ThinkPads just fine (including batteries) as of 2.6.27, and the code in thinkpad-acpi for the dock and bay subdrivers is currently broken anyway... Userspace needs some love to support the two-stage ejection nicely, but it is simple enough to do through udev rules (you don't even need HAL) so this wouldn't justify fixing the dock and bay subdrivers, either. That leaves warm-swap bays (_EJ3) support for thinkpad-acpi, as well as support for the weird dock of the model 570, but since such support has never left the "experimental" stage, it is also not a strong enough reason to find a way to fix this code. Users of ThinkPads with warm-swap bays are urged to request that _EJ3 support be added to the regular ACPI dock driver, if such feature is indeed useful for them. Signed-off-by: Henrique de Moraes Holschuh Signed-off-by: Len Brown --- Documentation/laptops/thinkpad-acpi.txt | 127 ------------- drivers/platform/x86/Kconfig | 27 --- drivers/platform/x86/thinkpad_acpi.c | 327 -------------------------------- 3 files changed, 481 deletions(-) diff --git a/Documentation/laptops/thinkpad-acpi.txt b/Documentation/laptops/thinkpad-acpi.txt index f2296ecedb8..e2ddcdeb61b 100644 --- a/Documentation/laptops/thinkpad-acpi.txt +++ b/Documentation/laptops/thinkpad-acpi.txt @@ -36,8 +36,6 @@ detailed description): - Bluetooth enable and disable - video output switching, expansion control - ThinkLight on and off - - limited docking and undocking - - UltraBay eject - CMOS/UCMS control - LED control - ACPI sounds @@ -729,131 +727,6 @@ cannot be read or if it is unknown, thinkpad-acpi will report it as "off". It is impossible to know if the status returned through sysfs is valid. -Docking / undocking -- /proc/acpi/ibm/dock ------------------------------------------- - -Docking and undocking (e.g. with the X4 UltraBase) requires some -actions to be taken by the operating system to safely make or break -the electrical connections with the dock. - -The docking feature of this driver generates the following ACPI events: - - ibm/dock GDCK 00000003 00000001 -- eject request - ibm/dock GDCK 00000003 00000002 -- undocked - ibm/dock GDCK 00000000 00000003 -- docked - -NOTE: These events will only be generated if the laptop was docked -when originally booted. This is due to the current lack of support for -hot plugging of devices in the Linux ACPI framework. If the laptop was -booted while not in the dock, the following message is shown in the -logs: - - Mar 17 01:42:34 aero kernel: thinkpad_acpi: dock device not present - -In this case, no dock-related events are generated but the dock and -undock commands described below still work. They can be executed -manually or triggered by Fn key combinations (see the example acpid -configuration files included in the driver tarball package available -on the web site). - -When the eject request button on the dock is pressed, the first event -above is generated. The handler for this event should issue the -following command: - - echo undock > /proc/acpi/ibm/dock - -After the LED on the dock goes off, it is safe to eject the laptop. -Note: if you pressed this key by mistake, go ahead and eject the -laptop, then dock it back in. Otherwise, the dock may not function as -expected. - -When the laptop is docked, the third event above is generated. The -handler for this event should issue the following command to fully -enable the dock: - - echo dock > /proc/acpi/ibm/dock - -The contents of the /proc/acpi/ibm/dock file shows the current status -of the dock, as provided by the ACPI framework. - -The docking support in this driver does not take care of enabling or -disabling any other devices you may have attached to the dock. For -example, a CD drive plugged into the UltraBase needs to be disabled or -enabled separately. See the provided example acpid configuration files -for how this can be accomplished. - -There is no support yet for PCI devices that may be attached to a -docking station, e.g. in the ThinkPad Dock II. The driver currently -does not recognize, enable or disable such devices. This means that -the only docking stations currently supported are the X-series -UltraBase docks and "dumb" port replicators like the Mini Dock (the -latter don't need any ACPI support, actually). - - -UltraBay eject -- /proc/acpi/ibm/bay ------------------------------------- - -Inserting or ejecting an UltraBay device requires some actions to be -taken by the operating system to safely make or break the electrical -connections with the device. - -This feature generates the following ACPI events: - - ibm/bay MSTR 00000003 00000000 -- eject request - ibm/bay MSTR 00000001 00000000 -- eject lever inserted - -NOTE: These events will only be generated if the UltraBay was present -when the laptop was originally booted (on the X series, the UltraBay -is in the dock, so it may not be present if the laptop was undocked). -This is due to the current lack of support for hot plugging of devices -in the Linux ACPI framework. If the laptop was booted without the -UltraBay, the following message is shown in the logs: - - Mar 17 01:42:34 aero kernel: thinkpad_acpi: bay device not present - -In this case, no bay-related events are generated but the eject -command described below still works. It can be executed manually or -triggered by a hot key combination. - -Sliding the eject lever generates the first event shown above. The -handler for this event should take whatever actions are necessary to -shut down the device in the UltraBay (e.g. call idectl), then issue -the following command: - - echo eject > /proc/acpi/ibm/bay - -After the LED on the UltraBay goes off, it is safe to pull out the -device. - -When the eject lever is inserted, the second event above is -generated. The handler for this event should take whatever actions are -necessary to enable the UltraBay device (e.g. call idectl). - -The contents of the /proc/acpi/ibm/bay file shows the current status -of the UltraBay, as provided by the ACPI framework. - -EXPERIMENTAL warm eject support on the 600e/x, A22p and A3x (To use -this feature, you need to supply the experimental=1 parameter when -loading the module): - -These models do not have a button near the UltraBay device to request -a hot eject but rather require the laptop to be put to sleep -(suspend-to-ram) before the bay device is ejected or inserted). -The sequence of steps to eject the device is as follows: - - echo eject > /proc/acpi/ibm/bay - put the ThinkPad to sleep - remove the drive - resume from sleep - cat /proc/acpi/ibm/bay should show that the drive was removed - -On the A3x, both the UltraBay 2000 and UltraBay Plus devices are -supported. Use "eject2" instead of "eject" for the second bay. - -Note: the UltraBay eject support on the 600e/x, A22p and A3x is -EXPERIMENTAL and may not work as expected. USE WITH CAUTION! - - CMOS/UCMS control ----------------- diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 6335f63892d..77c6097ced8 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -277,33 +277,6 @@ config THINKPAD_ACPI_UNSAFE_LEDS Say N here, unless you are building a kernel for your own use, and need to control the important firmware LEDs. -config THINKPAD_ACPI_DOCK - bool "Legacy Docking Station Support" - depends on THINKPAD_ACPI - depends on ACPI_DOCK=n - depends on BROKEN - default n - ---help--- - Allows the thinkpad_acpi driver to handle docking station events. - This support was made obsolete by the generic ACPI docking station - support (CONFIG_ACPI_DOCK). It will allow locking and removing the - laptop from the docking station, but will not properly connect PCI - devices. - - If you are not sure, say N here. - -config THINKPAD_ACPI_BAY - bool "Legacy Removable Bay Support" - depends on THINKPAD_ACPI - depends on BROKEN - default n - ---help--- - Allows the thinkpad_acpi driver to handle removable bays. It will - electrically disable the device in the bay, and also generate - notifications when the bay lever is ejected or inserted. - - If you are not sure, say Y here. - config THINKPAD_ACPI_VIDEO bool "Video output control support" depends on THINKPAD_ACPI diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index a463fd72c49..27d68e719e9 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -239,12 +239,6 @@ struct ibm_init_struct { }; static struct { -#ifdef CONFIG_THINKPAD_ACPI_BAY - u32 bay_status:1; - u32 bay_eject:1; - u32 bay_status2:1; - u32 bay_eject2:1; -#endif u32 bluetooth:1; u32 hotkey:1; u32 hotkey_mask:1; @@ -589,18 +583,6 @@ static int acpi_ec_write(int i, u8 v) return 1; } -#if defined(CONFIG_THINKPAD_ACPI_DOCK) || defined(CONFIG_THINKPAD_ACPI_BAY) -static int _sta(acpi_handle handle) -{ - int status; - - if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) - status = 0; - - return status; -} -#endif - static int issue_thinkpad_cmos_command(int cmos_cmd) { if (!cmos_handle) @@ -4441,293 +4423,6 @@ static struct ibm_struct light_driver_data = { .exit = light_exit, }; -/************************************************************************* - * Dock subdriver - */ - -#ifdef CONFIG_THINKPAD_ACPI_DOCK - -static void dock_notify(struct ibm_struct *ibm, u32 event); -static int dock_read(char *p); -static int dock_write(char *buf); - -TPACPI_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ - "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ - "\\_SB.PCI0.PCI1.DOCK", /* all others */ - "\\_SB.PCI.ISA.SLCE", /* 570 */ - ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ - -/* don't list other alternatives as we install a notify handler on the 570 */ -TPACPI_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ - -static const struct acpi_device_id ibm_pci_device_ids[] = { - {PCI_ROOT_HID_STRING, 0}, - {"", 0}, -}; - -static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { - { - .notify = dock_notify, - .handle = &dock_handle, - .type = ACPI_SYSTEM_NOTIFY, - }, - { - /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING. - * We just use it to get notifications of dock hotplug - * in very old thinkpads */ - .hid = ibm_pci_device_ids, - .notify = dock_notify, - .handle = &pci_handle, - .type = ACPI_SYSTEM_NOTIFY, - }, -}; - -static struct ibm_struct dock_driver_data[2] = { - { - .name = "dock", - .read = dock_read, - .write = dock_write, - .acpi = &ibm_dock_acpidriver[0], - }, - { - .name = "dock", - .acpi = &ibm_dock_acpidriver[1], - }, -}; - -#define dock_docked() (_sta(dock_handle) & 1) - -static int __init dock_init(struct ibm_init_struct *iibm) -{ - vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); - - TPACPI_ACPIHANDLE_INIT(dock); - - vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", - str_supported(dock_handle != NULL)); - - return (dock_handle)? 0 : 1; -} - -static int __init dock_init2(struct ibm_init_struct *iibm) -{ - int dock2_needed; - - vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); - - if (dock_driver_data[0].flags.acpi_driver_registered && - dock_driver_data[0].flags.acpi_notify_installed) { - TPACPI_ACPIHANDLE_INIT(pci); - dock2_needed = (pci_handle != NULL); - vdbg_printk(TPACPI_DBG_INIT, - "dock PCI handler for the TP 570 is %s\n", - str_supported(dock2_needed)); - } else { - vdbg_printk(TPACPI_DBG_INIT, - "dock subdriver part 2 not required\n"); - dock2_needed = 0; - } - - return (dock2_needed)? 0 : 1; -} - -static void dock_notify(struct ibm_struct *ibm, u32 event) -{ - int docked = dock_docked(); - int pci = ibm->acpi->hid && ibm->acpi->device && - acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids); - int data; - - if (event == 1 && !pci) /* 570 */ - data = 1; /* button */ - else if (event == 1 && pci) /* 570 */ - data = 3; /* dock */ - else if (event == 3 && docked) - data = 1; /* button */ - else if (event == 3 && !docked) - data = 2; /* undock */ - else if (event == 0 && docked) - data = 3; /* dock */ - else { - printk(TPACPI_ERR "unknown dock event %d, status %d\n", - event, _sta(dock_handle)); - data = 0; /* unknown */ - } - acpi_bus_generate_proc_event(ibm->acpi->device, event, data); - acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, - dev_name(&ibm->acpi->device->dev), - event, data); -} - -static int dock_read(char *p) -{ - int len = 0; - int docked = dock_docked(); - - if (!dock_handle) - len += sprintf(p + len, "status:\t\tnot supported\n"); - else if (!docked) - len += sprintf(p + len, "status:\t\tundocked\n"); - else { - len += sprintf(p + len, "status:\t\tdocked\n"); - len += sprintf(p + len, "commands:\tdock, undock\n"); - } - - return len; -} - -static int dock_write(char *buf) -{ - char *cmd; - - if (!dock_docked()) - return -ENODEV; - - while ((cmd = next_cmd(&buf))) { - if (strlencmp(cmd, "undock") == 0) { - if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || - !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) - return -EIO; - } else if (strlencmp(cmd, "dock") == 0) { - if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) - return -EIO; - } else - return -EINVAL; - } - - return 0; -} - -#endif /* CONFIG_THINKPAD_ACPI_DOCK */ - -/************************************************************************* - * Bay subdriver - */ - -#ifdef CONFIG_THINKPAD_ACPI_BAY - -TPACPI_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ - "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ - "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ - "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ - ); /* A21e, R30, R31 */ -TPACPI_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ - "_EJ0", /* all others */ - ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ -TPACPI_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ - "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ - ); /* all others */ -TPACPI_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ - "_EJ0", /* 770x */ - ); /* all others */ - -static int __init bay_init(struct ibm_init_struct *iibm) -{ - vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); - - TPACPI_ACPIHANDLE_INIT(bay); - if (bay_handle) - TPACPI_ACPIHANDLE_INIT(bay_ej); - TPACPI_ACPIHANDLE_INIT(bay2); - if (bay2_handle) - TPACPI_ACPIHANDLE_INIT(bay2_ej); - - tp_features.bay_status = bay_handle && - acpi_evalf(bay_handle, NULL, "_STA", "qv"); - tp_features.bay_status2 = bay2_handle && - acpi_evalf(bay2_handle, NULL, "_STA", "qv"); - - tp_features.bay_eject = bay_handle && bay_ej_handle && - (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); - tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && - (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); - - vdbg_printk(TPACPI_DBG_INIT, - "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", - str_supported(tp_features.bay_status), - str_supported(tp_features.bay_eject), - str_supported(tp_features.bay_status2), - str_supported(tp_features.bay_eject2)); - - return (tp_features.bay_status || tp_features.bay_eject || - tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; -} - -static void bay_notify(struct ibm_struct *ibm, u32 event) -{ - acpi_bus_generate_proc_event(ibm->acpi->device, event, 0); - acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, - dev_name(&ibm->acpi->device->dev), - event, 0); -} - -#define bay_occupied(b) (_sta(b##_handle) & 1) - -static int bay_read(char *p) -{ - int len = 0; - int occupied = bay_occupied(bay); - int occupied2 = bay_occupied(bay2); - int eject, eject2; - - len += sprintf(p + len, "status:\t\t%s\n", - tp_features.bay_status ? - (occupied ? "occupied" : "unoccupied") : - "not supported"); - if (tp_features.bay_status2) - len += sprintf(p + len, "status2:\t%s\n", occupied2 ? - "occupied" : "unoccupied"); - - eject = tp_features.bay_eject && occupied; - eject2 = tp_features.bay_eject2 && occupied2; - - if (eject && eject2) - len += sprintf(p + len, "commands:\teject, eject2\n"); - else if (eject) - len += sprintf(p + len, "commands:\teject\n"); - else if (eject2) - len += sprintf(p + len, "commands:\teject2\n"); - - return len; -} - -static int bay_write(char *buf) -{ - char *cmd; - - if (!tp_features.bay_eject && !tp_features.bay_eject2) - return -ENODEV; - - while ((cmd = next_cmd(&buf))) { - if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { - if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) - return -EIO; - } else if (tp_features.bay_eject2 && - strlencmp(cmd, "eject2") == 0) { - if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) - return -EIO; - } else - return -EINVAL; - } - - return 0; -} - -static struct tp_acpi_drv_struct ibm_bay_acpidriver = { - .notify = bay_notify, - .handle = &bay_handle, - .type = ACPI_SYSTEM_NOTIFY, -}; - -static struct ibm_struct bay_driver_data = { - .name = "bay", - .read = bay_read, - .write = bay_write, - .acpi = &ibm_bay_acpidriver, -}; - -#endif /* CONFIG_THINKPAD_ACPI_BAY */ - /************************************************************************* * CMOS subdriver */ @@ -7854,22 +7549,6 @@ static struct ibm_init_struct ibms_init[] __initdata = { .init = light_init, .data = &light_driver_data, }, -#ifdef CONFIG_THINKPAD_ACPI_DOCK - { - .init = dock_init, - .data = &dock_driver_data[0], - }, - { - .init = dock_init2, - .data = &dock_driver_data[1], - }, -#endif -#ifdef CONFIG_THINKPAD_ACPI_BAY - { - .init = bay_init, - .data = &bay_driver_data, - }, -#endif { .init = cmos_init, .data = &cmos_driver_data, @@ -7968,12 +7647,6 @@ TPACPI_PARAM(hotkey); TPACPI_PARAM(bluetooth); TPACPI_PARAM(video); TPACPI_PARAM(light); -#ifdef CONFIG_THINKPAD_ACPI_DOCK -TPACPI_PARAM(dock); -#endif -#ifdef CONFIG_THINKPAD_ACPI_BAY -TPACPI_PARAM(bay); -#endif /* CONFIG_THINKPAD_ACPI_BAY */ TPACPI_PARAM(cmos); TPACPI_PARAM(led); TPACPI_PARAM(beep); -- cgit v1.2.3 From 9b9d6b2434fe942895c341b9a982f158529788ec Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Fri, 31 Jul 2009 06:56:09 -0400 Subject: cifs: reinstate original behavior when uid=/gid= options are specified This patch fixes the regression reported here: http://bugzilla.kernel.org/show_bug.cgi?id=13861 commit 4ae1507f6d266d0cc3dd36e474d83aad70fec9e4 changed the default behavior when the uid= or gid= option was specified for a mount. The existing behavior was to always clobber the ownership information provided by the server when these options were specified. The above commit changed this behavior so that these options simply provided defaults when the server did not provide this information (unless "forceuid" or "forcegid" were specified) This patch reverts this change so that the default behavior is restored. It also adds "noforceuid" and "noforcegid" options to make it so that ownership information from the server is preserved, even when the mount has uid= or gid= options specified. It also adds a couple of printk notices that pop up when forceuid or forcegid options are specified without a uid= or gid= option. Reported-by: Tom Chiverton Reviewed-by: Shirish Pargaonkar Signed-off-by: Jeff Layton Signed-off-by: Steve French --- fs/cifs/connect.c | 42 ++++++++++++++++++++++++++++++------------ 1 file changed, 30 insertions(+), 12 deletions(-) diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index f2486889b7b..1f3345d7fa7 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -803,6 +803,10 @@ cifs_parse_mount_options(char *options, const char *devname, char *data; unsigned int temp_len, i, j; char separator[2]; + short int override_uid = -1; + short int override_gid = -1; + bool uid_specified = false; + bool gid_specified = false; separator[0] = ','; separator[1] = 0; @@ -1093,18 +1097,20 @@ cifs_parse_mount_options(char *options, const char *devname, "too long.\n"); return 1; } - } else if (strnicmp(data, "uid", 3) == 0) { - if (value && *value) - vol->linux_uid = - simple_strtoul(value, &value, 0); - } else if (strnicmp(data, "forceuid", 8) == 0) { - vol->override_uid = 1; - } else if (strnicmp(data, "gid", 3) == 0) { - if (value && *value) - vol->linux_gid = - simple_strtoul(value, &value, 0); - } else if (strnicmp(data, "forcegid", 8) == 0) { - vol->override_gid = 1; + } else if (!strnicmp(data, "uid", 3) && value && *value) { + vol->linux_uid = simple_strtoul(value, &value, 0); + uid_specified = true; + } else if (!strnicmp(data, "forceuid", 8)) { + override_uid = 1; + } else if (!strnicmp(data, "noforceuid", 10)) { + override_uid = 0; + } else if (!strnicmp(data, "gid", 3) && value && *value) { + vol->linux_gid = simple_strtoul(value, &value, 0); + gid_specified = true; + } else if (!strnicmp(data, "forcegid", 8)) { + override_gid = 1; + } else if (!strnicmp(data, "noforcegid", 10)) { + override_gid = 0; } else if (strnicmp(data, "file_mode", 4) == 0) { if (value && *value) { vol->file_mode = @@ -1355,6 +1361,18 @@ cifs_parse_mount_options(char *options, const char *devname, if (vol->UNCip == NULL) vol->UNCip = &vol->UNC[2]; + if (uid_specified) + vol->override_uid = override_uid; + else if (override_uid == 1) + printk(KERN_NOTICE "CIFS: ignoring forceuid mount option " + "specified with no uid= option.\n"); + + if (gid_specified) + vol->override_gid = override_gid; + else if (override_gid == 1) + printk(KERN_NOTICE "CIFS: ignoring forcegid mount option " + "specified with no gid= option.\n"); + return 0; } -- cgit v1.2.3 From 5b05d4696d38c3172e79e855cc1e2ed044589508 Mon Sep 17 00:00:00 2001 From: Michael Buesch Date: Sat, 1 Aug 2009 12:04:19 -0300 Subject: thinkpad-acpi: restrict procfs count value to sane upper limit Signed-off-by: Michael Buesch Acked-by: Henrique de Moraes Holschuh Signed-off-by: Len Brown --- drivers/platform/x86/thinkpad_acpi.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 27d68e719e9..18f9ee63c50 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -766,6 +766,8 @@ static int dispatch_procfs_write(struct file *file, if (!ibm || !ibm->write) return -EINVAL; + if (count > PAGE_SIZE - 2) + return -EINVAL; kernbuf = kmalloc(count + 2, GFP_KERNEL); if (!kernbuf) -- cgit v1.2.3 From 59fe4fe34d7afdf63208124f313be9056feaa2f4 Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Sat, 1 Aug 2009 12:04:20 -0300 Subject: thinkpad-acpi: fix incorrect use of TPACPI_BRGHT_MODE_ECNVRAM HBRV-based default selection of backlight control strategy didn't work well, at least the X41 defines it but doesn't use it and I don't think it will stop there. Switch to a white/blacklist. All models that have HBRV defined have been included in the list, and initially all ATI GPUs will get ECNVRAM, and the Intel GPUs will get UCMS_STEP. Symptoms of incorrect backlight mode selection are: 1. Non-working backlight control through sysfs; 2. Backlight gets reset to the lowest level at every shutdown, reboot and when thinkpad-acpi gets unloaded; This fixes a regression in 2.6.30, bugzilla #13826 Signed-off-by: Henrique de Moraes Holschuh Reported-by: Tobias Diedrich Cc: stable@kernel.org Signed-off-by: Len Brown --- drivers/platform/x86/thinkpad_acpi.c | 61 +++++++++++++++++++++++++++--------- 1 file changed, 47 insertions(+), 14 deletions(-) diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 18f9ee63c50..e8560085250 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -5642,14 +5642,48 @@ static struct backlight_ops ibm_backlight_data = { /* --------------------------------------------------------------------- */ +/* + * These are only useful for models that have only one possibility + * of GPU. If the BIOS model handles both ATI and Intel, don't use + * these quirks. + */ +#define TPACPI_BRGHT_Q_NOEC 0x0001 /* Must NOT use EC HBRV */ +#define TPACPI_BRGHT_Q_EC 0x0002 /* Should or must use EC HBRV */ +#define TPACPI_BRGHT_Q_ASK 0x8000 /* Ask for user report */ + +static const struct tpacpi_quirk brightness_quirk_table[] __initconst = { + /* Models with ATI GPUs known to require ECNVRAM mode */ + TPACPI_Q_IBM('1', 'Y', TPACPI_BRGHT_Q_EC), /* T43/p ATI */ + + /* Models with ATI GPUs (waiting confirmation) */ + TPACPI_Q_IBM('1', 'R', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), + TPACPI_Q_IBM('1', 'Q', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), + TPACPI_Q_IBM('7', '6', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), + TPACPI_Q_IBM('7', '8', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), + + /* Models with Intel Extreme Graphics 2 (waiting confirmation) */ + TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_NOEC), + TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_NOEC), + TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_NOEC), + + /* Models with Intel GMA900 */ + TPACPI_Q_IBM('7', '0', TPACPI_BRGHT_Q_NOEC), /* T43, R52 */ + TPACPI_Q_IBM('7', '4', TPACPI_BRGHT_Q_NOEC), /* X41 */ + TPACPI_Q_IBM('7', '5', TPACPI_BRGHT_Q_NOEC), /* X41 Tablet */ +}; + static int __init brightness_init(struct ibm_init_struct *iibm) { int b; + unsigned long quirks; vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); mutex_init(&brightness_mutex); + quirks = tpacpi_check_quirks(brightness_quirk_table, + ARRAY_SIZE(brightness_quirk_table)); + /* * We always attempt to detect acpi support, so as to switch * Lenovo Vista BIOS to ACPI brightness mode even if we are not @@ -5706,23 +5740,13 @@ static int __init brightness_init(struct ibm_init_struct *iibm) /* TPACPI_BRGHT_MODE_AUTO not implemented yet, just use default */ if (brightness_mode == TPACPI_BRGHT_MODE_AUTO || brightness_mode == TPACPI_BRGHT_MODE_MAX) { - if (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) { - /* - * IBM models that define HBRV probably have - * EC-based backlight level control - */ - if (acpi_evalf(ec_handle, NULL, "HBRV", "qd")) - /* T40-T43, R50-R52, R50e, R51e, X31-X41 */ - brightness_mode = TPACPI_BRGHT_MODE_ECNVRAM; - else - /* all other IBM ThinkPads */ - brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP; - } else - /* All Lenovo ThinkPads */ + if (quirks & TPACPI_BRGHT_Q_EC) + brightness_mode = TPACPI_BRGHT_MODE_ECNVRAM; + else brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP; dbg_printk(TPACPI_DBG_BRGHT, - "selected brightness_mode=%d\n", + "driver auto-selected brightness_mode=%d\n", brightness_mode); } @@ -5749,6 +5773,15 @@ static int __init brightness_init(struct ibm_init_struct *iibm) vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, "brightness is supported\n"); + if (quirks & TPACPI_BRGHT_Q_ASK) { + printk(TPACPI_NOTICE + "brightness: will use unverified default: " + "brightness_mode=%d\n", brightness_mode); + printk(TPACPI_NOTICE + "brightness: please report to %s whether it works well " + "or not on your ThinkPad\n", TPACPI_MAIL); + } + ibm_backlight_device->props.max_brightness = (tp_features.bright_16levels)? 15 : 7; ibm_backlight_device->props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; -- cgit v1.2.3 From b4f2e2ad5348063ef94aa623f6f09b52ecaf0990 Mon Sep 17 00:00:00 2001 From: John David Anglin Date: Sun, 2 Aug 2009 12:34:08 +0200 Subject: parisc: Fix GOT overflow during module load on 64bit kernel Signed-off-by: John David Anglin Signed-off-by: Helge Deller --- arch/parisc/kernel/module.c | 50 ++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 45 insertions(+), 5 deletions(-) diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c index ef5caf2e6ed..61ee0eec4e6 100644 --- a/arch/parisc/kernel/module.c +++ b/arch/parisc/kernel/module.c @@ -86,8 +86,12 @@ * the bottom of the table, which has a maximum signed displacement of * 0x3fff; however, since we're only going forward, this becomes * 0x1fff, and thus, since each GOT entry is 8 bytes long we can have - * at most 1023 entries */ -#define MAX_GOTS 1023 + * at most 1023 entries. + * To overcome this 14bit displacement with some kernel modules, we'll + * use instead the unusal 16bit displacement method (see reassemble_16a) + * which gives us a maximum positive displacement of 0x7fff, and as such + * allows us to allocate up to 4095 GOT entries. */ +#define MAX_GOTS 4095 /* three functions to determine where in the module core * or init pieces the location is */ @@ -145,12 +149,40 @@ struct stub_entry { /* The reassemble_* functions prepare an immediate value for insertion into an opcode. pa-risc uses all sorts of weird bitfields in the instruction to hold the value. */ +static inline int sign_unext(int x, int len) +{ + int len_ones; + + len_ones = (1 << len) - 1; + return x & len_ones; +} + +static inline int low_sign_unext(int x, int len) +{ + int sign, temp; + + sign = (x >> (len-1)) & 1; + temp = sign_unext(x, len-1); + return (temp << 1) | sign; +} + static inline int reassemble_14(int as14) { return (((as14 & 0x1fff) << 1) | ((as14 & 0x2000) >> 13)); } +static inline int reassemble_16a(int as16) +{ + int s, t; + + /* Unusual 16-bit encoding, for wide mode only. */ + t = (as16 << 1) & 0xffff; + s = (as16 & 0x8000); + return (t ^ s ^ (s >> 1)) | (s >> 15); +} + + static inline int reassemble_17(int as17) { return (((as17 & 0x10000) >> 16) | @@ -407,6 +439,7 @@ static Elf_Addr get_stub(struct module *me, unsigned long value, long addend, enum elf_stub_type stub_type, Elf_Addr loc0, unsigned int targetsec) { struct stub_entry *stub; + int __maybe_unused d; /* initialize stub_offset to point in front of the section */ if (!me->arch.section[targetsec].stub_offset) { @@ -460,12 +493,19 @@ static Elf_Addr get_stub(struct module *me, unsigned long value, long addend, */ switch (stub_type) { case ELF_STUB_GOT: - stub->insns[0] = 0x537b0000; /* ldd 0(%dp),%dp */ + d = get_got(me, value, addend); + if (d <= 15) { + /* Format 5 */ + stub->insns[0] = 0x0f6010db; /* ldd 0(%dp),%dp */ + stub->insns[0] |= low_sign_unext(d, 5) << 16; + } else { + /* Format 3 */ + stub->insns[0] = 0x537b0000; /* ldd 0(%dp),%dp */ + stub->insns[0] |= reassemble_16a(d); + } stub->insns[1] = 0x53610020; /* ldd 10(%dp),%r1 */ stub->insns[2] = 0xe820d000; /* bve (%r1) */ stub->insns[3] = 0x537b0030; /* ldd 18(%dp),%dp */ - - stub->insns[0] |= reassemble_14(get_got(me, value, addend) & 0x3fff); break; case ELF_STUB_MILLI: stub->insns[0] = 0x20200000; /* ldil 0,%r1 */ -- cgit v1.2.3 From 447c233da4d109c6194fefd69e5185cbc93cc062 Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Sun, 2 Aug 2009 08:02:28 +0000 Subject: parisc: Fix read buffer overflow in pdc_stable driver Check whether index is within bounds before testing the element. Signed-off-by: Roel Kluin Signed-off-by: Helge Deller --- drivers/parisc/pdc_stable.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c index f9f9a5f1bbd..13a64bc081b 100644 --- a/drivers/parisc/pdc_stable.c +++ b/drivers/parisc/pdc_stable.c @@ -370,7 +370,7 @@ pdcspath_layer_read(struct pdcspath_entry *entry, char *buf) if (!i) /* entry is not ready */ return -ENODATA; - for (i = 0; devpath->layers[i] && (likely(i < 6)); i++) + for (i = 0; i < 6 && devpath->layers[i]; i++) out += sprintf(out, "%u ", devpath->layers[i]); out += sprintf(out, "\n"); -- cgit v1.2.3 From 450d6e306b4717bfae11218a02648509baf04ce1 Mon Sep 17 00:00:00 2001 From: Stoyan Gaydarov Date: Thu, 30 Jul 2009 10:25:19 +0000 Subject: parisc: fixed faulty check in lba_pci This patche fixes a spelling error that has resulted from copy and pasting. The location of the error was found using a semantic patch but the semantic patch was not trying to find these errors. After looking things over it seemed logical that this change was needed. Signed-off-by: Stoyan Gaydarov Signed-off-by: Helge Deller --- drivers/parisc/lba_pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c index ede614616f8..3aeb3279c92 100644 --- a/drivers/parisc/lba_pci.c +++ b/drivers/parisc/lba_pci.c @@ -992,7 +992,7 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev) return; io_pdc_cell = kzalloc(sizeof(pdc_pat_cell_mod_maddr_block_t), GFP_KERNEL); - if (!pa_pdc_cell) { + if (!io_pdc_cell) { kfree(pa_pdc_cell); return; } -- cgit v1.2.3 From 6b4dbcd86a9d464057fcc7abe4d0574093071fcc Mon Sep 17 00:00:00 2001 From: Michael Buesch Date: Mon, 20 Jul 2009 22:58:44 +0000 Subject: parisc: isa-eeprom - Fix loff_t usage loff_t is a signed type. If userspace passes a negative ppos, the "count" range check is weakened. "count"s bigger than HPEE_MAX_LENGTH will pass the check. Also, if ppos is negative, the readb(eisa_eeprom_addr + *ppos) will poke in random memory. Signed-off-by: Michael Buesch Cc: stable@kernel.org Signed-off-by: Helge Deller --- drivers/parisc/eisa_eeprom.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/parisc/eisa_eeprom.c b/drivers/parisc/eisa_eeprom.c index 685d94e69d4..8c0b26e9b98 100644 --- a/drivers/parisc/eisa_eeprom.c +++ b/drivers/parisc/eisa_eeprom.c @@ -55,7 +55,7 @@ static ssize_t eisa_eeprom_read(struct file * file, ssize_t ret; int i; - if (*ppos >= HPEE_MAX_LENGTH) + if (*ppos < 0 || *ppos >= HPEE_MAX_LENGTH) return 0; count = *ppos + count < HPEE_MAX_LENGTH ? count : HPEE_MAX_LENGTH - *ppos; -- cgit v1.2.3 From 2678251b207394aa8b9d92c653c05a8b3449f1f5 Mon Sep 17 00:00:00 2001 From: John David Anglin Date: Mon, 13 Jul 2009 01:44:37 +0000 Subject: parisc: Set correct bit in protection flags Signed-off-by: John David Anglin Signed-off-by: Helge Deller --- arch/parisc/kernel/entry.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S index ae3e70cd1e1..e552e547cb9 100644 --- a/arch/parisc/kernel/entry.S +++ b/arch/parisc/kernel/entry.S @@ -553,7 +553,7 @@ * on most of those machines only handles cache transactions. */ extrd,u,*= \pte,_PAGE_NO_CACHE_BIT+32,1,%r0 - depi 1,12,1,\prot + depdi 1,12,1,\prot /* Drop prot bits and convert to page addr for iitlbt and idtlbt */ convert_for_tlb_insert20 \pte -- cgit v1.2.3 From b10ff54f9f58adfb708b53e6e56ed3d7804ade74 Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Wed, 8 Jul 2009 15:27:20 +0000 Subject: parisc: includecheck fix for ccio-dma.c fix the following 'make includecheck' warning: drivers/parisc/ccio-dma.c: linux/proc_fs.h is included more than once. Signed-off-by: Jaswinder Singh Rajput Signed-off-by: Helge Deller --- drivers/parisc/ccio-dma.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c index 0f0e0b919ef..a45b0c0d574 100644 --- a/drivers/parisc/ccio-dma.c +++ b/drivers/parisc/ccio-dma.c @@ -70,7 +70,6 @@ #undef CCIO_COLLECT_STATS #endif -#include #include /* for proc_runway_root */ #ifdef DEBUG_CCIO_INIT -- cgit v1.2.3 From 470a1396c25c27b4aff08b14d5c9cd9b3da15e09 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Wed, 29 Jul 2009 10:50:09 +0200 Subject: tracing, perf_counter: Add help text to CONFIG_EVENT_PROFILE Explain what tracepoint profiling sources are about. Signed-off-by: Peter Zijlstra Acked-by: Jeff Garzik LKML-Reference: <1248856508.6987.3041.camel@twins> Signed-off-by: Ingo Molnar --- init/Kconfig | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/init/Kconfig b/init/Kconfig index cb2c0927022..823ee0a2d2a 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -961,9 +961,17 @@ config PERF_COUNTERS Say Y if unsure. config EVENT_PROFILE - bool "Tracepoint profile sources" + bool "Tracepoint profiling sources" depends on PERF_COUNTERS && EVENT_TRACING default y + help + Allow the use of tracepoints as software performance counters. + + When this is enabled, you can create perf counters based on + tracepoints using PERF_TYPE_TRACEPOINT and the tracepoint ID + found in debugfs://tracing/events/*/*/id. (The -e/--events + option to the perf tool can parse and interpret symbolic + tracepoints, in the subsystem:tracepoint_name format.) endmenu -- cgit v1.2.3 From e53c0994709166b111fbe9162d1a16ece7dfc45b Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Fri, 24 Jul 2009 14:42:10 +0200 Subject: perf_counter: Collapse inherit on read() Currently the counter value returned by read() is the value of the parent counter, to which child counters are only fed back on child exit. Thus read() can return rather erratic (and meaningless) numbers depending on the state of the child processes. Change this by always iterating the full child hierarchy on read() and sum all counters. Suggested-by: Corey Ashford Signed-off-by: Peter Zijlstra LKML-Reference: Signed-off-by: Ingo Molnar --- kernel/perf_counter.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 95093104195..48471d75ae0 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -1688,6 +1688,18 @@ static int perf_release(struct inode *inode, struct file *file) return 0; } +static u64 perf_counter_read_tree(struct perf_counter *counter) +{ + struct perf_counter *child; + u64 total = 0; + + total += perf_counter_read(counter); + list_for_each_entry(child, &counter->child_list, child_list) + total += perf_counter_read(child); + + return total; +} + /* * Read the performance counter - simple non blocking version for now */ @@ -1707,7 +1719,7 @@ perf_read_hw(struct perf_counter *counter, char __user *buf, size_t count) WARN_ON_ONCE(counter->ctx->parent_ctx); mutex_lock(&counter->child_mutex); - values[0] = perf_counter_read(counter); + values[0] = perf_counter_read_tree(counter); n = 1; if (counter->attr.read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) values[n++] = counter->total_time_enabled + -- cgit v1.2.3 From 9f498cc5be7e013d8d6e4c616980ed0ffc8680d2 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Thu, 23 Jul 2009 14:46:33 +0200 Subject: perf_counter: Full task tracing In order to be able to distinguish between no samples due to inactivity and no samples due to task ended, Arjan asked for PERF_EVENT_EXIT events. This is useful to the boot delay instrumentation (bootchart) app. This patch changes the PERF_EVENT_FORK to be emitted on every clone, and adds PERF_EVENT_EXIT to be emitted on task exit, after the task's counters have been closed. This task tracing is controlled through: attr.comm || attr.mmap and through the new attr.task field. Suggested-by: Arjan van de Ven Cc: Paul Mackerras Cc: Anton Blanchard Signed-off-by: Peter Zijlstra [ cleaned up perf_counter.h a bit ] Signed-off-by: Ingo Molnar --- include/linux/perf_counter.h | 13 ++++++- kernel/fork.c | 4 +- kernel/perf_counter.c | 87 +++++++++++++++++++++++++++++--------------- 3 files changed, 71 insertions(+), 33 deletions(-) diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h index bd15d7a5f5c..e604e6ef72d 100644 --- a/include/linux/perf_counter.h +++ b/include/linux/perf_counter.h @@ -181,8 +181,9 @@ struct perf_counter_attr { freq : 1, /* use freq, not period */ inherit_stat : 1, /* per task counts */ enable_on_exec : 1, /* next exec enables */ + task : 1, /* trace fork/exit */ - __reserved_1 : 51; + __reserved_1 : 50; __u32 wakeup_events; /* wakeup every n events */ __u32 __reserved_2; @@ -308,6 +309,15 @@ enum perf_event_type { */ PERF_EVENT_COMM = 3, + /* + * struct { + * struct perf_event_header header; + * u32 pid, ppid; + * u32 tid, ptid; + * }; + */ + PERF_EVENT_EXIT = 4, + /* * struct { * struct perf_event_header header; @@ -323,6 +333,7 @@ enum perf_event_type { * struct { * struct perf_event_header header; * u32 pid, ppid; + * u32 tid, ptid; * }; */ PERF_EVENT_FORK = 7, diff --git a/kernel/fork.c b/kernel/fork.c index 29b532e718f..466531eb92c 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1269,6 +1269,7 @@ static struct task_struct *copy_process(unsigned long clone_flags, write_unlock_irq(&tasklist_lock); proc_fork_connector(p); cgroup_post_fork(p); + perf_counter_fork(p); return p; bad_fork_free_pid: @@ -1410,9 +1411,6 @@ long do_fork(unsigned long clone_flags, init_completion(&vfork); } - if (!(clone_flags & CLONE_THREAD)) - perf_counter_fork(p); - audit_finish_fork(p); tracehook_report_clone(regs, clone_flags, nr, p); diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 48471d75ae0..199ed477131 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -42,6 +42,7 @@ static int perf_overcommit __read_mostly = 1; static atomic_t nr_counters __read_mostly; static atomic_t nr_mmap_counters __read_mostly; static atomic_t nr_comm_counters __read_mostly; +static atomic_t nr_task_counters __read_mostly; /* * perf counter paranoia level: @@ -1654,6 +1655,8 @@ static void free_counter(struct perf_counter *counter) atomic_dec(&nr_mmap_counters); if (counter->attr.comm) atomic_dec(&nr_comm_counters); + if (counter->attr.task) + atomic_dec(&nr_task_counters); } if (counter->destroy) @@ -2831,10 +2834,12 @@ perf_counter_read_event(struct perf_counter *counter, } /* - * fork tracking + * task tracking -- fork/exit + * + * enabled by: attr.comm | attr.mmap | attr.task */ -struct perf_fork_event { +struct perf_task_event { struct task_struct *task; struct { @@ -2842,37 +2847,42 @@ struct perf_fork_event { u32 pid; u32 ppid; + u32 tid; + u32 ptid; } event; }; -static void perf_counter_fork_output(struct perf_counter *counter, - struct perf_fork_event *fork_event) +static void perf_counter_task_output(struct perf_counter *counter, + struct perf_task_event *task_event) { struct perf_output_handle handle; - int size = fork_event->event.header.size; - struct task_struct *task = fork_event->task; + int size = task_event->event.header.size; + struct task_struct *task = task_event->task; int ret = perf_output_begin(&handle, counter, size, 0, 0); if (ret) return; - fork_event->event.pid = perf_counter_pid(counter, task); - fork_event->event.ppid = perf_counter_pid(counter, task->real_parent); + task_event->event.pid = perf_counter_pid(counter, task); + task_event->event.ppid = perf_counter_pid(counter, task->real_parent); - perf_output_put(&handle, fork_event->event); + task_event->event.tid = perf_counter_tid(counter, task); + task_event->event.ptid = perf_counter_tid(counter, task->real_parent); + + perf_output_put(&handle, task_event->event); perf_output_end(&handle); } -static int perf_counter_fork_match(struct perf_counter *counter) +static int perf_counter_task_match(struct perf_counter *counter) { - if (counter->attr.comm || counter->attr.mmap) + if (counter->attr.comm || counter->attr.mmap || counter->attr.task) return 1; return 0; } -static void perf_counter_fork_ctx(struct perf_counter_context *ctx, - struct perf_fork_event *fork_event) +static void perf_counter_task_ctx(struct perf_counter_context *ctx, + struct perf_task_event *task_event) { struct perf_counter *counter; @@ -2881,19 +2891,19 @@ static void perf_counter_fork_ctx(struct perf_counter_context *ctx, rcu_read_lock(); list_for_each_entry_rcu(counter, &ctx->event_list, event_entry) { - if (perf_counter_fork_match(counter)) - perf_counter_fork_output(counter, fork_event); + if (perf_counter_task_match(counter)) + perf_counter_task_output(counter, task_event); } rcu_read_unlock(); } -static void perf_counter_fork_event(struct perf_fork_event *fork_event) +static void perf_counter_task_event(struct perf_task_event *task_event) { struct perf_cpu_context *cpuctx; struct perf_counter_context *ctx; cpuctx = &get_cpu_var(perf_cpu_context); - perf_counter_fork_ctx(&cpuctx->ctx, fork_event); + perf_counter_task_ctx(&cpuctx->ctx, task_event); put_cpu_var(perf_cpu_context); rcu_read_lock(); @@ -2903,32 +2913,40 @@ static void perf_counter_fork_event(struct perf_fork_event *fork_event) */ ctx = rcu_dereference(current->perf_counter_ctxp); if (ctx) - perf_counter_fork_ctx(ctx, fork_event); + perf_counter_task_ctx(ctx, task_event); rcu_read_unlock(); } -void perf_counter_fork(struct task_struct *task) +static void perf_counter_task(struct task_struct *task, int new) { - struct perf_fork_event fork_event; + struct perf_task_event task_event; if (!atomic_read(&nr_comm_counters) && - !atomic_read(&nr_mmap_counters)) + !atomic_read(&nr_mmap_counters) && + !atomic_read(&nr_task_counters)) return; - fork_event = (struct perf_fork_event){ + task_event = (struct perf_task_event){ .task = task, .event = { .header = { - .type = PERF_EVENT_FORK, + .type = new ? PERF_EVENT_FORK : PERF_EVENT_EXIT, .misc = 0, - .size = sizeof(fork_event.event), + .size = sizeof(task_event.event), }, /* .pid */ /* .ppid */ + /* .tid */ + /* .ptid */ }, }; - perf_counter_fork_event(&fork_event); + perf_counter_task_event(&task_event); +} + +void perf_counter_fork(struct task_struct *task) +{ + perf_counter_task(task, 1); } /* @@ -3887,6 +3905,8 @@ done: atomic_inc(&nr_mmap_counters); if (counter->attr.comm) atomic_inc(&nr_comm_counters); + if (counter->attr.task) + atomic_inc(&nr_task_counters); } return counter; @@ -4248,8 +4268,10 @@ void perf_counter_exit_task(struct task_struct *child) struct perf_counter_context *child_ctx; unsigned long flags; - if (likely(!child->perf_counter_ctxp)) + if (likely(!child->perf_counter_ctxp)) { + perf_counter_task(child, 0); return; + } local_irq_save(flags); /* @@ -4267,15 +4289,22 @@ void perf_counter_exit_task(struct task_struct *child) * incremented the context's refcount before we do put_ctx below. */ spin_lock(&child_ctx->lock); - child->perf_counter_ctxp = NULL; /* * If this context is a clone; unclone it so it can't get * swapped to another process while we're removing all * the counters from it. */ unclone_ctx(child_ctx); - spin_unlock(&child_ctx->lock); - local_irq_restore(flags); + spin_unlock_irqrestore(&child_ctx->lock, flags); + + /* + * Report the task dead after unscheduling the counters so that we + * won't get any samples after PERF_EVENT_EXIT. We can however still + * get a few PERF_EVENT_READ events. + */ + perf_counter_task(child, 0); + + child->perf_counter_ctxp = NULL; /* * We can recurse on the same lock type through: -- cgit v1.2.3 From 27d028de64bd7e1f8e72bdeae6b0586939574fcb Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Thu, 23 Jul 2009 16:52:41 +0200 Subject: perf report: Update for the new FORK/EXIT events Since FORK is now also issued for threads, detect those by comparing the parent and child PID. Teach it about EXIT events and ignore them. Signed-off-by: Peter Zijlstra Cc: Paul Mackerras Signed-off-by: Ingo Molnar --- tools/perf/builtin-report.c | 22 ++++++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-) diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index b20a4b6e31b..95fd06cdaa9 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -99,6 +99,7 @@ struct comm_event { struct fork_event { struct perf_event_header header; u32 pid, ppid; + u32 tid, ptid; }; struct lost_event { @@ -1608,15 +1609,27 @@ process_comm_event(event_t *event, unsigned long offset, unsigned long head) } static int -process_fork_event(event_t *event, unsigned long offset, unsigned long head) +process_task_event(event_t *event, unsigned long offset, unsigned long head) { struct thread *thread = threads__findnew(event->fork.pid); struct thread *parent = threads__findnew(event->fork.ppid); - dprintf("%p [%p]: PERF_EVENT_FORK: %d:%d\n", + dprintf("%p [%p]: PERF_EVENT_%s: (%d:%d):(%d:%d)\n", (void *)(offset + head), (void *)(long)(event->header.size), - event->fork.pid, event->fork.ppid); + event->header.type == PERF_EVENT_FORK ? "FORK" : "EXIT", + event->fork.pid, event->fork.tid, + event->fork.ppid, event->fork.ptid); + + /* + * A thread clone will have the same PID for both + * parent and child. + */ + if (thread == parent) + return 0; + + if (event->header.type == PERF_EVENT_EXIT) + return 0; if (!thread || !parent || thread__fork(thread, parent)) { dprintf("problem processing PERF_EVENT_FORK, skipping event.\n"); @@ -1706,7 +1719,8 @@ process_event(event_t *event, unsigned long offset, unsigned long head) return process_comm_event(event, offset, head); case PERF_EVENT_FORK: - return process_fork_event(event, offset, head); + case PERF_EVENT_EXIT: + return process_task_event(event, offset, head); case PERF_EVENT_LOST: return process_lost_event(event, offset, head); -- cgit v1.2.3 From 9b30a26bf3d2c56dcb1c3afaca28b73fcd6ed405 Mon Sep 17 00:00:00 2001 From: Stoyan Gaydarov Date: Thu, 30 Jul 2009 05:25:29 -0500 Subject: perf tools: Fix faulty check This patch fixes a spelling error that has resulted from copy and pasting. The location of the error was found using a semantic patch but the semantic patch was not trying to find these errors. After looking things over it seemed logical that this change was needed. Please review it and then include the patch if it is in fact the correct change. Signed-off-by: Stoyan Gaydarov Signed-off-by: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker LKML-Reference: <1248949529-20891-1-git-send-email-sgayda2@uiuc.edu> Signed-off-by: Ingo Molnar --- tools/perf/util/symbol.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 28106059bf1..b4fe0579bd6 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -565,7 +565,7 @@ static int dso__load_sym(struct dso *self, int fd, const char *name, goto out_elf_end; secstrs = elf_getdata(sec_strndx, NULL); - if (symstrs == NULL) + if (secstrs == NULL) goto out_elf_end; nr_syms = shdr.sh_size / shdr.sh_entsize; -- cgit v1.2.3 From 59b9005692d4c8b5d73cfc41aa7229f47be163a9 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Sun, 26 Jul 2009 19:06:19 -0300 Subject: perf top: Add mwait_idle_with_hints to skip_symbols[] We skip the display of idle routine related symbols because they are typically rather erratic and confusing: they depend on the IRQ rate or sometimes they dominate the profile if they are polling based. Add mwait_idle_with_hints too, this is one of the idle routines on x86. Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Ingo Molnar --- tools/perf/builtin-top.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index c0a423004e1..f139f1ab933 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -285,6 +285,7 @@ static const char *skip_symbols[] = { "enter_idle", "exit_idle", "mwait_idle", + "mwait_idle_with_hints", "ppc64_runlatch_off", "pseries_dedicated_idle_sleep", NULL -- cgit v1.2.3 From e414314cce7539788dd5d2c35decad11782dd858 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Thu, 23 Jul 2009 20:13:26 +0200 Subject: sched: Fix latencytop and sleep profiling vs group scheduling The latencytop and sleep accounting code assumes that any scheduler entity represents a task, this is not so. Cc: Arjan van de Ven Signed-off-by: Peter Zijlstra Signed-off-by: Ingo Molnar --- kernel/sched_fair.c | 32 +++++++++++++++++++------------- 1 file changed, 19 insertions(+), 13 deletions(-) diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index 9ffb2b2ceba..652e8bdef9a 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -611,9 +611,13 @@ account_entity_dequeue(struct cfs_rq *cfs_rq, struct sched_entity *se) static void enqueue_sleeper(struct cfs_rq *cfs_rq, struct sched_entity *se) { #ifdef CONFIG_SCHEDSTATS + struct task_struct *tsk = NULL; + + if (entity_is_task(se)) + tsk = task_of(se); + if (se->sleep_start) { u64 delta = rq_of(cfs_rq)->clock - se->sleep_start; - struct task_struct *tsk = task_of(se); if ((s64)delta < 0) delta = 0; @@ -624,11 +628,11 @@ static void enqueue_sleeper(struct cfs_rq *cfs_rq, struct sched_entity *se) se->sleep_start = 0; se->sum_sleep_runtime += delta; - account_scheduler_latency(tsk, delta >> 10, 1); + if (tsk) + account_scheduler_latency(tsk, delta >> 10, 1); } if (se->block_start) { u64 delta = rq_of(cfs_rq)->clock - se->block_start; - struct task_struct *tsk = task_of(se); if ((s64)delta < 0) delta = 0; @@ -639,17 +643,19 @@ static void enqueue_sleeper(struct cfs_rq *cfs_rq, struct sched_entity *se) se->block_start = 0; se->sum_sleep_runtime += delta; - /* - * Blocking time is in units of nanosecs, so shift by 20 to - * get a milliseconds-range estimation of the amount of - * time that the task spent sleeping: - */ - if (unlikely(prof_on == SLEEP_PROFILING)) { - - profile_hits(SLEEP_PROFILING, (void *)get_wchan(tsk), - delta >> 20); + if (tsk) { + /* + * Blocking time is in units of nanosecs, so shift by + * 20 to get a milliseconds-range estimation of the + * amount of time that the task spent sleeping: + */ + if (unlikely(prof_on == SLEEP_PROFILING)) { + profile_hits(SLEEP_PROFILING, + (void *)get_wchan(tsk), + delta >> 20); + } + account_scheduler_latency(tsk, delta >> 10, 0); } - account_scheduler_latency(tsk, delta >> 10, 0); } #endif } -- cgit v1.2.3 From 07903af152b0597d94e9b0030746b63c4664e787 Mon Sep 17 00:00:00 2001 From: Gregory Haskins Date: Thu, 30 Jul 2009 10:57:28 -0400 Subject: sched: Fix race in cpupri introduced by cpumask_var changes Background: Several race conditions in the scheduler have cropped up recently, which Steven and I have tracked down using ftrace. The most recent one turns out to be a race in how the scheduler determines a suitable migration target for RT tasks, introduced recently with commit: commit 68e74568fbe5854952355e942acca51f138096d9 Date: Tue Nov 25 02:35:13 2008 +1030 sched: convert struct cpupri_vec cpumask_var_t. The original design of cpupri allowed lockless readers to quickly determine a best-estimate target. Races between the pri_active bitmap and the vec->mask were handled in the original code because we would detect and return "0" when this occured. The design was predicated on the *effective* atomicity (*) of caching the result of cpus_and() between the cpus_allowed and the vec->mask. Commit 68e74568 changed the behavior such that vec->mask is accessed multiple times. This introduces a subtle race, the result of which means we can have a result that returns "1", but with an empty bitmap. *) yes, we know cpus_and() is not a locked operator across the entire composite array, but it is implicitly atomic on a per-word basis which is all the design required to work. Implementation: Rather than forgoing the lockless design, or reverting to a stack-based cpumask_t, we simply check for when the race has been encountered and continue processing in the event that the race is hit. This renders the removal race as if the priority bit had been atomically cleared as well, and allows the algorithm to execute correctly. Signed-off-by: Gregory Haskins CC: Rusty Russell CC: Steven Rostedt Signed-off-by: Peter Zijlstra LKML-Reference: <20090730145728.25226.92769.stgit@dev.haskins.net> Signed-off-by: Ingo Molnar --- kernel/sched_cpupri.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/kernel/sched_cpupri.c b/kernel/sched_cpupri.c index e6c251790dd..d014efbf947 100644 --- a/kernel/sched_cpupri.c +++ b/kernel/sched_cpupri.c @@ -81,8 +81,21 @@ int cpupri_find(struct cpupri *cp, struct task_struct *p, if (cpumask_any_and(&p->cpus_allowed, vec->mask) >= nr_cpu_ids) continue; - if (lowest_mask) + if (lowest_mask) { cpumask_and(lowest_mask, &p->cpus_allowed, vec->mask); + + /* + * We have to ensure that we have at least one bit + * still set in the array, since the map could have + * been concurrently emptied between the first and + * second reads of vec->mask. If we hit this + * condition, simply act as though we never hit this + * priority level and continue on. + */ + if (cpumask_any(lowest_mask) >= nr_cpu_ids) + continue; + } + return 1; } -- cgit v1.2.3 From c6fe6b0783a8fd923d11dd0388cbd561ff15bdf1 Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Sun, 2 Aug 2009 15:13:29 +0200 Subject: parisc: hp_sdc_mlc.c - check return value of down_trylock() Signed-off-by: Helge Deller --- drivers/input/serio/hp_sdc_mlc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/input/serio/hp_sdc_mlc.c b/drivers/input/serio/hp_sdc_mlc.c index b587e2d576a..820e51673b2 100644 --- a/drivers/input/serio/hp_sdc_mlc.c +++ b/drivers/input/serio/hp_sdc_mlc.c @@ -296,7 +296,7 @@ static void hp_sdc_mlc_out(hil_mlc *mlc) priv->tseq[3] = 0; if (mlc->opacket & HIL_CTRL_APE) { priv->tseq[3] |= HP_SDC_LPC_APE_IPF; - down_trylock(&mlc->csem); + BUG_ON(down_trylock(&mlc->csem)); } enqueue: hp_sdc_enqueue_transaction(&priv->trans); -- cgit v1.2.3 From 1e0deabd35f210f22c03cc734a0335c07ae71ff3 Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Sun, 2 Aug 2009 15:17:37 +0200 Subject: parisc: dino.c - check return value of pci_assign_resource() Signed-off-by: Helge Deller --- drivers/parisc/dino.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c index c590974e981..d69bde6a234 100644 --- a/drivers/parisc/dino.c +++ b/drivers/parisc/dino.c @@ -614,7 +614,7 @@ dino_fixup_bus(struct pci_bus *bus) dev_name(&bus->self->dev), i, bus->self->resource[i].start, bus->self->resource[i].end); - pci_assign_resource(bus->self, i); + WARN_ON(pci_assign_resource(bus->self, i)); DBG("DEBUG %s after assign %d [0x%lx,0x%lx]\n", dev_name(&bus->self->dev), i, bus->self->resource[i].start, -- cgit v1.2.3 From 01a261e09a21e0ba342d3907a79cf5c78ee3f37a Mon Sep 17 00:00:00 2001 From: Ryusuke Konishi Date: Sun, 2 Aug 2009 17:45:55 +0900 Subject: nilfs2: fix missing unlock in error path of nilfs_mdt_write_page This adds a missing unlock of nilfs->ns_writer_mutex in nilfs_mdt_write_page() function. Signed-off-by: Ryusuke Konishi --- fs/nilfs2/mdt.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c index 3d3ddb3f517..2dfd47714ae 100644 --- a/fs/nilfs2/mdt.c +++ b/fs/nilfs2/mdt.c @@ -412,8 +412,10 @@ nilfs_mdt_write_page(struct page *page, struct writeback_control *wbc) return 0; /* Do not request flush for shadow page cache */ if (!sb) { writer = nilfs_get_writer(NILFS_MDT(inode)->mi_nilfs); - if (!writer) + if (!writer) { + nilfs_put_writer(NILFS_MDT(inode)->mi_nilfs); return -EROFS; + } sb = writer->s_super; } -- cgit v1.2.3 From 1a1dba32412c15c51d5fc0b9efadd2ea310356d7 Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Sun, 2 Aug 2009 15:26:51 +0200 Subject: parisc: sticore.c - check return values Signed-off-by: Helge Deller --- drivers/video/console/sticore.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/video/console/sticore.c b/drivers/video/console/sticore.c index ef7870f5ea0..857b3668b3b 100644 --- a/drivers/video/console/sticore.c +++ b/drivers/video/console/sticore.c @@ -957,9 +957,14 @@ static int __devinit sticore_pci_init(struct pci_dev *pd, #ifdef CONFIG_PCI unsigned long fb_base, rom_base; unsigned int fb_len, rom_len; + int err; struct sti_struct *sti; - pci_enable_device(pd); + err = pci_enable_device(pd); + if (err < 0) { + dev_err(&pd->dev, "Cannot enable PCI device\n"); + return err; + } fb_base = pci_resource_start(pd, 0); fb_len = pci_resource_len(pd, 0); @@ -1048,7 +1053,7 @@ static void __devinit sti_init_roms(void) /* Register drivers for native & PCI cards */ register_parisc_driver(&pa_sti_driver); - pci_register_driver(&pci_sti_driver); + WARN_ON(pci_register_driver(&pci_sti_driver)); /* if we didn't find the given default sti, take the first one */ if (!default_sti) -- cgit v1.2.3 From c43962321e8af5309dd3ffcd78743c89581265e5 Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Sun, 2 Aug 2009 15:35:43 +0200 Subject: parisc: parisc-agp.c - use correct page_mask function Fix those compiler warnings, which indeed point to a bug: drivers/char/agp/parisc-agp.c:228: warning: initialization from incompatible pointer type drivers/char/agp/parisc-agp.c:201: warning: 'parisc_agp_page_mask_memory' defined but not used Signed-off-by: Helge Deller --- drivers/char/agp/parisc-agp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/char/agp/parisc-agp.c b/drivers/char/agp/parisc-agp.c index f4bb43fb801..e077701ae3d 100644 --- a/drivers/char/agp/parisc-agp.c +++ b/drivers/char/agp/parisc-agp.c @@ -225,7 +225,7 @@ static const struct agp_bridge_driver parisc_agp_driver = { .configure = parisc_agp_configure, .fetch_size = parisc_agp_fetch_size, .tlb_flush = parisc_agp_tlbflush, - .mask_memory = parisc_agp_mask_memory, + .mask_memory = parisc_agp_page_mask_memory, .masks = parisc_agp_masks, .agp_enable = parisc_agp_enable, .cache_flush = global_cache_flush, -- cgit v1.2.3 From cae5a39f34d52c46ca49edfc3f297656a0fd60b7 Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Sun, 2 Aug 2009 15:42:39 +0200 Subject: parisc: hppb.c - fix printk format strings Fix those warnings: drivers/parisc/hppb.c: In function 'hppb_probe': drivers/parisc/hppb.c:65: warning: format '%x' expects type 'unsigned int', but argument 2 has type 'resource_size_t' drivers/parisc/hppb.c:77: warning: format '%08x' expects type 'unsigned int', but argument 3 has type 'resource_size_t' drivers/parisc/hppb.c:77: warning: format '%08x' expects type 'unsigned int', but argument 4 has type 'resource_size_t' Signed-off-by: Helge Deller --- drivers/parisc/hppb.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/parisc/hppb.c b/drivers/parisc/hppb.c index 13856415b43..815db175d42 100644 --- a/drivers/parisc/hppb.c +++ b/drivers/parisc/hppb.c @@ -62,7 +62,8 @@ static int hppb_probe(struct parisc_device *dev) } card = card->next; } - printk(KERN_INFO "Found GeckoBoa at 0x%x\n", dev->hpa.start); + printk(KERN_INFO "Found GeckoBoa at 0x%llx\n", + (unsigned long long) dev->hpa.start); card->hpa = dev->hpa.start; card->mmio_region.name = "HP-PB Bus"; @@ -73,8 +74,10 @@ static int hppb_probe(struct parisc_device *dev) status = ccio_request_resource(dev, &card->mmio_region); if(status < 0) { - printk(KERN_ERR "%s: failed to claim HP-PB bus space (%08x, %08x)\n", - __FILE__, card->mmio_region.start, card->mmio_region.end); + printk(KERN_ERR "%s: failed to claim HP-PB " + "bus space (0x%08llx, 0x%08llx)\n", + __FILE__, (unsigned long long) card->mmio_region.start, + (unsigned long long) card->mmio_region.end); } return 0; -- cgit v1.2.3 From d0006f3281c920fbfead0f5035c62ec8053f980a Mon Sep 17 00:00:00 2001 From: Len Brown Date: Thu, 30 Jul 2009 16:00:53 -0400 Subject: ACPI: root-only read protection on /sys/firmware/acpi/tables/* they were world readable. Signed-off-by: Len Brown --- drivers/acpi/system.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c index 0944daec064..9c61ab2177c 100644 --- a/drivers/acpi/system.c +++ b/drivers/acpi/system.c @@ -121,7 +121,7 @@ static void acpi_table_attr_init(struct acpi_table_attr *table_attr, table_attr->attr.size = 0; table_attr->attr.read = acpi_table_show; table_attr->attr.attr.name = table_attr->name; - table_attr->attr.attr.mode = 0444; + table_attr->attr.attr.mode = 0400; return; } -- cgit v1.2.3 From 74b5820808215f65b70b05a099d6d3c969b82689 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Wed, 29 Jul 2009 15:54:25 -0600 Subject: ACPI: bind workqueues to CPU 0 to avoid SMI corruption On some machines, a software-initiated SMI causes corruption unless the SMI runs on CPU 0. An SMI can be initiated by any AML, but typically it's done in GPE-related methods that are run via workqueues, so we can avoid the known corruption cases by binding the workqueues to CPU 0. References: http://bugzilla.kernel.org/show_bug.cgi?id=13751 https://bugs.launchpad.net/bugs/157171 https://bugs.launchpad.net/bugs/157691 Signed-off-by: Bjorn Helgaas Signed-off-by: Len Brown --- drivers/acpi/osl.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 71670719d61..5691f165a95 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -189,11 +189,36 @@ acpi_status __init acpi_os_initialize(void) return AE_OK; } +static void bind_to_cpu0(struct work_struct *work) +{ + set_cpus_allowed(current, cpumask_of_cpu(0)); + kfree(work); +} + +static void bind_workqueue(struct workqueue_struct *wq) +{ + struct work_struct *work; + + work = kzalloc(sizeof(struct work_struct), GFP_KERNEL); + INIT_WORK(work, bind_to_cpu0); + queue_work(wq, work); +} + acpi_status acpi_os_initialize1(void) { + /* + * On some machines, a software-initiated SMI causes corruption unless + * the SMI runs on CPU 0. An SMI can be initiated by any AML, but + * typically it's done in GPE-related methods that are run via + * workqueues, so we can avoid the known corruption cases by binding + * the workqueues to CPU 0. + */ kacpid_wq = create_singlethread_workqueue("kacpid"); + bind_workqueue(kacpid_wq); kacpi_notify_wq = create_singlethread_workqueue("kacpi_notify"); + bind_workqueue(kacpi_notify_wq); kacpi_hotplug_wq = create_singlethread_workqueue("kacpi_hotplug"); + bind_workqueue(kacpi_hotplug_wq); BUG_ON(!kacpid_wq); BUG_ON(!kacpi_notify_wq); BUG_ON(!kacpi_hotplug_wq); -- cgit v1.2.3 From aa7b2b2e973874df99a45b31adbed5978b46be1f Mon Sep 17 00:00:00 2001 From: Zhao Yakui Date: Fri, 3 Jul 2009 10:49:03 +0800 Subject: ACPI: Don't treat generic error as ACPI error code in acpi memory hotplug driver Don't treat the generic error as ACPI error code. Otherwise when the generic code is returned, it will complain the following warning messag: >ACPI Exception (acpi_memhotplug-0171): UNKNOWN_STATUS_CODE, Cannot get acpi bus device [20080609] >ACPI: Cannot find driver data > ACPI Error (utglobal-0127): Unknown exception code: 0xFFFFFFED [20080609] > Pid: 85, comm: kacpi_notify Not tainted 2.6.27.19-5-default #1 Call Trace: [] show_trace_log_lvl+0x41/0x58 [] dump_stack+0x69/0x6f ..... At the same time when the generic error code is returned, the ACPI_EXCEPTION is replaced by the printk. Signed-off-by: Zhao Yakui Signed-off-by: Len Brown --- drivers/acpi/acpi_memhotplug.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c index 7a0f4aa4fa1..37cbe72d17e 100644 --- a/drivers/acpi/acpi_memhotplug.c +++ b/drivers/acpi/acpi_memhotplug.c @@ -38,6 +38,9 @@ #define _COMPONENT ACPI_MEMORY_DEVICE_COMPONENT +#undef PREFIX +#define PREFIX "ACPI:memory_hp:" + ACPI_MODULE_NAME("acpi_memhotplug"); MODULE_AUTHOR("Naveen B S "); MODULE_DESCRIPTION("Hotplug Mem Driver"); @@ -153,6 +156,7 @@ acpi_memory_get_device(acpi_handle handle, acpi_handle phandle; struct acpi_device *device = NULL; struct acpi_device *pdevice = NULL; + int result; if (!acpi_bus_get_device(handle, &device) && device) @@ -165,9 +169,9 @@ acpi_memory_get_device(acpi_handle handle, } /* Get the parent device */ - status = acpi_bus_get_device(phandle, &pdevice); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, "Cannot get acpi bus device")); + result = acpi_bus_get_device(phandle, &pdevice); + if (result) { + printk(KERN_WARNING PREFIX "Cannot get acpi bus device"); return -EINVAL; } @@ -175,9 +179,9 @@ acpi_memory_get_device(acpi_handle handle, * Now add the notified device. This creates the acpi_device * and invokes .add function */ - status = acpi_bus_add(&device, pdevice, handle, ACPI_BUS_TYPE_DEVICE); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, "Cannot add acpi bus")); + result = acpi_bus_add(&device, pdevice, handle, ACPI_BUS_TYPE_DEVICE); + if (result) { + printk(KERN_WARNING PREFIX "Cannot add acpi bus"); return -EINVAL; } -- cgit v1.2.3 From 5d2619fca753d270e63e76c9e18437b0d9bc8d75 Mon Sep 17 00:00:00 2001 From: Zhao Yakui Date: Tue, 7 Jul 2009 10:56:11 +0800 Subject: ACPI: Ingore the memory block with zero block size in course of memory hotplug If the memory block size is zero, ignore it and don't do the memory hotplug flowchart. Otherwise it will complain the following warning message: >System RAM resource 0 - ffffffffffffffff cannot be added Signed-off-by: Zhao Yakui Signed-off-by: Len Brown --- drivers/acpi/acpi_memhotplug.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c index 37cbe72d17e..9a62224cc27 100644 --- a/drivers/acpi/acpi_memhotplug.c +++ b/drivers/acpi/acpi_memhotplug.c @@ -242,7 +242,12 @@ static int acpi_memory_enable_device(struct acpi_memory_device *mem_device) num_enabled++; continue; } - + /* + * If the memory block size is zero, please ignore it. + * Don't try to do the following memory hotplug flowchart. + */ + if (!info->length) + continue; if (node < 0) node = memory_add_physaddr_to_nid(info->start_addr); @@ -257,8 +262,15 @@ static int acpi_memory_enable_device(struct acpi_memory_device *mem_device) mem_device->state = MEMORY_INVALID_STATE; return -EINVAL; } - - return result; + /* + * Sometimes the memory device will contain several memory blocks. + * When one memory block is hot-added to the system memory, it will + * be regarded as a success. + * Otherwise if the last memory block can't be hot-added to the system + * memory, it will be failure and the memory device can't be bound with + * driver. + */ + return 0; } static int acpi_memory_powerdown_device(struct acpi_memory_device *mem_device) -- cgit v1.2.3 From 7334546a52c6764df120459509b1f803a073eacc Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Mon, 29 Jun 2009 09:40:07 +0100 Subject: eeepc-laptop: fix hot-unplug on resume OOPS on resume when the wireless adaptor is disabled during suspend was introduced by "eeepc-laptop: read rfkill soft-blocked state on resume". Unable to handle kernel NULL pointer dereference Process s2disk Tainted: G W IP: klist_put Call trace: ? klist_del ? device_del ? device_unregister ? pci_stop_dev ? pci_stop_bus ? pci_remove_device ? eeepc_rfkill_hotplug [eeepc_laptop] ? eeepc_hotk_resume [eeepc_laptop] ? acpi_device_resume ? device_resume ? hibernation_snapshot It appears the PCI device is removed twice. The eeepc_rfkill_hotplug() call from the resume handler is racing against the call from the ACPI notifier callback. The ACPI notification is triggered by the resume handler when it refreshes the value of CM_ASL_WLAN. The fix is to serialize hotplug calls using a workqueue. http://bugzilla.kernel.org/show_bug.cgi?id=13825 Signed-off-by: Alan Jenkins Acked-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index ec560f16d72..222ffb892f2 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -143,6 +143,7 @@ struct eeepc_hotk { struct rfkill *bluetooth_rfkill; struct rfkill *wwan3g_rfkill; struct hotplug_slot *hotplug_slot; + struct work_struct hotplug_work; }; /* The actual device the driver binds to */ @@ -660,7 +661,7 @@ static int eeepc_get_adapter_status(struct hotplug_slot *hotplug_slot, return 0; } -static void eeepc_rfkill_hotplug(void) +static void eeepc_hotplug_work(struct work_struct *work) { struct pci_dev *dev; struct pci_bus *bus = pci_find_bus(0, 1); @@ -701,7 +702,7 @@ static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data) if (event != ACPI_NOTIFY_BUS_CHECK) return; - eeepc_rfkill_hotplug(); + schedule_work(&ehotk->hotplug_work); } static void eeepc_hotk_notify(struct acpi_device *device, u32 event) @@ -892,7 +893,7 @@ static int eeepc_hotk_resume(struct acpi_device *device) rfkill_set_sw_state(ehotk->wlan_rfkill, wlan != 1); - eeepc_rfkill_hotplug(); + schedule_work(&ehotk->hotplug_work); } if (ehotk->bluetooth_rfkill) @@ -1093,6 +1094,8 @@ static int eeepc_rfkill_init(struct device *dev) { int result = 0; + INIT_WORK(&ehotk->hotplug_work, eeepc_hotplug_work); + eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P6"); eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P7"); -- cgit v1.2.3 From 5973bee46fe66db94fab198979dec87f263fc2a8 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 21 Jul 2009 00:40:46 +0200 Subject: [WATCHDOG] Fix COH 901 327 watchdog enablement Since the COH 901 327 found in U300 is clocked at 32 kHz we need to wait for the interrupt clearing flag to propagate through hardware in order not to accidentally fire off any interrupts when we enable them. Signed-off-by: Linus Walleij Signed-off-by: Wim Van Sebroeck --- drivers/watchdog/coh901327_wdt.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/watchdog/coh901327_wdt.c b/drivers/watchdog/coh901327_wdt.c index fecb307d28e..aec7cefdef2 100644 --- a/drivers/watchdog/coh901327_wdt.c +++ b/drivers/watchdog/coh901327_wdt.c @@ -18,6 +18,7 @@ #include #include #include +#include #define DRV_NAME "WDOG COH 901 327" @@ -92,6 +93,8 @@ static struct clk *clk; static void coh901327_enable(u16 timeout) { u16 val; + unsigned long freq; + unsigned long delay_ns; clk_enable(clk); /* Restart timer if it is disabled */ @@ -102,6 +105,14 @@ static void coh901327_enable(u16 timeout) /* Acknowledge any pending interrupt so it doesn't just fire off */ writew(U300_WDOG_IER_WILL_BARK_IRQ_ACK_ENABLE, virtbase + U300_WDOG_IER); + /* + * The interrupt is cleared in the 32 kHz clock domain. + * Wait 3 32 kHz cycles for it to take effect + */ + freq = clk_get_rate(clk); + delay_ns = (1000000000 + freq - 1) / freq; /* Freq to ns and round up */ + delay_ns = 3 * delay_ns; /* Wait 3 cycles */ + ndelay(delay_ns); /* Enable the watchdog interrupt */ writew(U300_WDOG_IMR_WILL_BARK_IRQ_ENABLE, virtbase + U300_WDOG_IMR); /* Activate the watchdog timer */ -- cgit v1.2.3 From 79896cf42f6a96d7e14f2dc3473443d68d74031d Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 2 Aug 2009 14:04:19 -0700 Subject: Make pci_claim_resource() use request_resource() rather than insert_resource() This function has traditionally used "insert_resource()", because before commit cebd78a8c5 ("Fix pci_claim_resource") it used to just insert the resource into whatever root resource tree that was indicated by "pcibios_select_root()". So there Matthew fixed it to actually look up the proper parent resource, which means that now it's actively wrong to then traverse the resource tree any more: we already know exactly where the new resource should go. And when we then did commit a76117dfd6 ("x86: Use pci_claim_resource"), which changed the x86 PCI code from the open-coded pr = pci_find_parent_resource(dev, r); if (!pr || request_resource(pr, r) < 0) { to using if (pci_claim_resource(dev, idx) < 0) { that "insert_resource()" now suddenly became a problem, and causes a regression covered by http://bugzilla.kernel.org/show_bug.cgi?id=13891 which this fixes. Reported-and-tested-by: Rafael J. Wysocki Cc: Matthew Wilcox Cc: Andrew Patterson Cc: Linux PCI Signed-off-by: Linus Torvalds --- drivers/pci/setup-res.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c index b711fb7181e..1898c7b4790 100644 --- a/drivers/pci/setup-res.c +++ b/drivers/pci/setup-res.c @@ -100,16 +100,16 @@ int pci_claim_resource(struct pci_dev *dev, int resource) { struct resource *res = &dev->resource[resource]; struct resource *root; - char *dtype = resource < PCI_BRIDGE_RESOURCES ? "device" : "bridge"; int err; root = pci_find_parent_resource(dev, res); err = -EINVAL; if (root != NULL) - err = insert_resource(root, res); + err = request_resource(root, res); if (err) { + const char *dtype = resource < PCI_BRIDGE_RESOURCES ? "device" : "bridge"; dev_err(&dev->dev, "BAR %d: %s of %s %pR\n", resource, root ? "address space collision on" : -- cgit v1.2.3 From 57d7f282271a83fe4ca4bd15eee79be577210210 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Fri, 31 Jul 2009 21:28:16 -0700 Subject: TTY: Maintainer change Clearly, I am a glutton for punishment. I'll see if I can see Alan's changes through to the end, otherwise I'll be fending off a lot of bug reports for usb-serial devices. Cc: Alan Cox Signed-off-by: Greg Kroah-Hartman Signed-off-by: Linus Torvalds --- MAINTAINERS | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index d6befb2c470..b1114cfac6b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4995,7 +4995,9 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial.git S: Maintained TTY LAYER -S: Orphan +M: Greg Kroah-Hartman +S: Maintained +T: quilt kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/ F: drivers/char/tty_* F: drivers/serial/serial_core.c F: include/linux/serial_core.h -- cgit v1.2.3 From ac5e7113e74872928844d00085bd47c988f12728 Mon Sep 17 00:00:00 2001 From: Andre Noll Date: Mon, 3 Aug 2009 10:59:47 +1000 Subject: md: Push down data integrity code to personalities. This patch replaces md_integrity_check() by two new public functions: md_integrity_register() and md_integrity_add_rdev() which are both personality-independent. md_integrity_register() is called from the ->run and ->hot_remove methods of all personalities that support data integrity. The function iterates over the component devices of the array and determines if all active devices are integrity capable and if their profiles match. If this is the case, the common profile is registered for the mddev via blk_integrity_register(). The second new function, md_integrity_add_rdev() is called from the ->hot_add_disk methods, i.e. whenever a new device is being added to a raid array. If the new device does not support data integrity, or has a profile different from the one already registered, data integrity for the mddev is disabled. For raid0 and linear, only the call to md_integrity_register() from the ->run method is necessary. Signed-off-by: Andre Noll Signed-off-by: NeilBrown --- drivers/md/linear.c | 1 + drivers/md/md.c | 94 ++++++++++++++++++++++++++++++++++---------------- drivers/md/md.h | 2 ++ drivers/md/multipath.c | 5 ++- drivers/md/raid0.c | 1 + drivers/md/raid1.c | 6 ++-- drivers/md/raid10.c | 4 +++ 7 files changed, 80 insertions(+), 33 deletions(-) diff --git a/drivers/md/linear.c b/drivers/md/linear.c index 5810fa906af..54c8677f1e5 100644 --- a/drivers/md/linear.c +++ b/drivers/md/linear.c @@ -220,6 +220,7 @@ static int linear_run (mddev_t *mddev) mddev->queue->unplug_fn = linear_unplug; mddev->queue->backing_dev_info.congested_fn = linear_congested; mddev->queue->backing_dev_info.congested_data = mddev; + md_integrity_register(mddev); return 0; } diff --git a/drivers/md/md.c b/drivers/md/md.c index d4351ff0849..180949e94a7 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1487,37 +1487,76 @@ static int match_mddev_units(mddev_t *mddev1, mddev_t *mddev2) static LIST_HEAD(pending_raid_disks); -static void md_integrity_check(mdk_rdev_t *rdev, mddev_t *mddev) +/* + * Try to register data integrity profile for an mddev + * + * This is called when an array is started and after a disk has been kicked + * from the array. It only succeeds if all working and active component devices + * are integrity capable with matching profiles. + */ +int md_integrity_register(mddev_t *mddev) +{ + mdk_rdev_t *rdev, *reference = NULL; + + if (list_empty(&mddev->disks)) + return 0; /* nothing to do */ + if (blk_get_integrity(mddev->gendisk)) + return 0; /* already registered */ + list_for_each_entry(rdev, &mddev->disks, same_set) { + /* skip spares and non-functional disks */ + if (test_bit(Faulty, &rdev->flags)) + continue; + if (rdev->raid_disk < 0) + continue; + /* + * If at least one rdev is not integrity capable, we can not + * enable data integrity for the md device. + */ + if (!bdev_get_integrity(rdev->bdev)) + return -EINVAL; + if (!reference) { + /* Use the first rdev as the reference */ + reference = rdev; + continue; + } + /* does this rdev's profile match the reference profile? */ + if (blk_integrity_compare(reference->bdev->bd_disk, + rdev->bdev->bd_disk) < 0) + return -EINVAL; + } + /* + * All component devices are integrity capable and have matching + * profiles, register the common profile for the md device. + */ + if (blk_integrity_register(mddev->gendisk, + bdev_get_integrity(reference->bdev)) != 0) { + printk(KERN_ERR "md: failed to register integrity for %s\n", + mdname(mddev)); + return -EINVAL; + } + printk(KERN_NOTICE "md: data integrity on %s enabled\n", + mdname(mddev)); + return 0; +} +EXPORT_SYMBOL(md_integrity_register); + +/* Disable data integrity if non-capable/non-matching disk is being added */ +void md_integrity_add_rdev(mdk_rdev_t *rdev, mddev_t *mddev) { - struct mdk_personality *pers = mddev->pers; - struct gendisk *disk = mddev->gendisk; struct blk_integrity *bi_rdev = bdev_get_integrity(rdev->bdev); - struct blk_integrity *bi_mddev = blk_get_integrity(disk); + struct blk_integrity *bi_mddev = blk_get_integrity(mddev->gendisk); - /* Data integrity passthrough not supported on RAID 4, 5 and 6 */ - if (pers && pers->level >= 4 && pers->level <= 6) + if (!bi_mddev) /* nothing to do */ return; - - /* If rdev is integrity capable, register profile for mddev */ - if (!bi_mddev && bi_rdev) { - if (blk_integrity_register(disk, bi_rdev)) - printk(KERN_ERR "%s: %s Could not register integrity!\n", - __func__, disk->disk_name); - else - printk(KERN_NOTICE "Enabling data integrity on %s\n", - disk->disk_name); + if (rdev->raid_disk < 0) /* skip spares */ return; - } - - /* Check that mddev and rdev have matching profiles */ - if (blk_integrity_compare(disk, rdev->bdev->bd_disk) < 0) { - printk(KERN_ERR "%s: %s/%s integrity mismatch!\n", __func__, - disk->disk_name, rdev->bdev->bd_disk->disk_name); - printk(KERN_NOTICE "Disabling data integrity on %s\n", - disk->disk_name); - blk_integrity_unregister(disk); - } + if (bi_rdev && blk_integrity_compare(mddev->gendisk, + rdev->bdev->bd_disk) >= 0) + return; + printk(KERN_NOTICE "disabling data integrity on %s\n", mdname(mddev)); + blk_integrity_unregister(mddev->gendisk); } +EXPORT_SYMBOL(md_integrity_add_rdev); static int bind_rdev_to_array(mdk_rdev_t * rdev, mddev_t * mddev) { @@ -1591,7 +1630,6 @@ static int bind_rdev_to_array(mdk_rdev_t * rdev, mddev_t * mddev) /* May as well allow recovery to be retried once */ mddev->recovery_disabled = 0; - md_integrity_check(rdev, mddev); return 0; fail: @@ -4048,10 +4086,6 @@ static int do_md_run(mddev_t * mddev) } strlcpy(mddev->clevel, pers->name, sizeof(mddev->clevel)); - if (pers->level >= 4 && pers->level <= 6) - /* Cannot support integrity (yet) */ - blk_integrity_unregister(mddev->gendisk); - if (mddev->reshape_position != MaxSector && pers->start_reshape == NULL) { /* This personality cannot handle reshaping... */ diff --git a/drivers/md/md.h b/drivers/md/md.h index 9430a110db9..78f03168baf 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -431,5 +431,7 @@ extern int md_allow_write(mddev_t *mddev); extern void md_wait_for_blocked_rdev(mdk_rdev_t *rdev, mddev_t *mddev); extern void md_set_array_sectors(mddev_t *mddev, sector_t array_sectors); extern int md_check_no_bitmap(mddev_t *mddev); +extern int md_integrity_register(mddev_t *mddev); +void md_integrity_add_rdev(mdk_rdev_t *rdev, mddev_t *mddev); #endif /* _MD_MD_H */ diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c index 237fe3fd235..7140909f666 100644 --- a/drivers/md/multipath.c +++ b/drivers/md/multipath.c @@ -313,6 +313,7 @@ static int multipath_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) set_bit(In_sync, &rdev->flags); rcu_assign_pointer(p->rdev, rdev); err = 0; + md_integrity_add_rdev(rdev, mddev); break; } @@ -345,7 +346,9 @@ static int multipath_remove_disk(mddev_t *mddev, int number) /* lost the race, try later */ err = -EBUSY; p->rdev = rdev; + goto abort; } + md_integrity_register(mddev); } abort: @@ -519,7 +522,7 @@ static int multipath_run (mddev_t *mddev) mddev->queue->unplug_fn = multipath_unplug; mddev->queue->backing_dev_info.congested_fn = multipath_congested; mddev->queue->backing_dev_info.congested_data = mddev; - + md_integrity_register(mddev); return 0; out_free_conf: diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index 335f490dcad..898e2bdfee4 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -351,6 +351,7 @@ static int raid0_run(mddev_t *mddev) blk_queue_merge_bvec(mddev->queue, raid0_mergeable_bvec); dump_zones(mddev); + md_integrity_register(mddev); return 0; } diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 0569efba0c0..67e794d0097 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1144,7 +1144,7 @@ static int raid1_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) rcu_assign_pointer(p->rdev, rdev); break; } - + md_integrity_add_rdev(rdev, mddev); print_conf(conf); return err; } @@ -1178,7 +1178,9 @@ static int raid1_remove_disk(mddev_t *mddev, int number) /* lost the race, try later */ err = -EBUSY; p->rdev = rdev; + goto abort; } + md_integrity_register(mddev); } abort: @@ -2067,7 +2069,7 @@ static int run(mddev_t *mddev) mddev->queue->unplug_fn = raid1_unplug; mddev->queue->backing_dev_info.congested_fn = raid1_congested; mddev->queue->backing_dev_info.congested_data = mddev; - + md_integrity_register(mddev); return 0; out_no_mem: diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 7298a5e5a18..3d9020cf6f6 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1170,6 +1170,7 @@ static int raid10_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) break; } + md_integrity_add_rdev(rdev, mddev); print_conf(conf); return err; } @@ -1203,7 +1204,9 @@ static int raid10_remove_disk(mddev_t *mddev, int number) /* lost the race, try later */ err = -EBUSY; p->rdev = rdev; + goto abort; } + md_integrity_register(mddev); } abort: @@ -2225,6 +2228,7 @@ static int run(mddev_t *mddev) if (conf->near_copies < mddev->raid_disks) blk_queue_merge_bvec(mddev->queue, raid10_mergeable_bvec); + md_integrity_register(mddev); return 0; out_free_conf: -- cgit v1.2.3 From 3a981b03f38dc3b8a69b77cbc679e66c1318a44a Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 3 Aug 2009 10:59:55 +1000 Subject: md: when a level change reduces the number of devices, remove the excess. When an array is changed from RAID6 to RAID5, fewer drives are needed. So any device that is made superfluous by the level conversion must be marked as not-active. For the RAID6->RAID5 conversion, this will be a drive which only has 'Q' blocks on it. Cc: stable@kernel.org Signed-off-by: NeilBrown --- drivers/md/md.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/md/md.c b/drivers/md/md.c index 180949e94a7..c194955aeca 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -2695,6 +2695,7 @@ level_store(mddev_t *mddev, const char *buf, size_t len) ssize_t rv = len; struct mdk_personality *pers; void *priv; + mdk_rdev_t *rdev; if (mddev->pers == NULL) { if (len == 0) @@ -2774,6 +2775,12 @@ level_store(mddev_t *mddev, const char *buf, size_t len) mddev_suspend(mddev); mddev->pers->stop(mddev); module_put(mddev->pers->owner); + /* Invalidate devices that are now superfluous */ + list_for_each_entry(rdev, &mddev->disks, same_set) + if (rdev->raid_disk >= mddev->raid_disks) { + rdev->raid_disk = -1; + clear_bit(In_sync, &rdev->flags); + } mddev->pers = pers; mddev->private = priv; strlcpy(mddev->clevel, pers->name, sizeof(mddev->clevel)); -- cgit v1.2.3 From 3673f305faf1bc66ead751344f8262ace851ff44 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 3 Aug 2009 10:59:56 +1000 Subject: md: avoid array overflow with bad v1.x metadata We trust the 'desc_nr' field in v1.x metadata enough to use it as an index in an array. This isn't really safe. So range-check the value first. Signed-off-by: NeilBrown --- drivers/md/md.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index c194955aeca..249b2896d4e 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1308,7 +1308,12 @@ static int super_1_validate(mddev_t *mddev, mdk_rdev_t *rdev) } if (mddev->level != LEVEL_MULTIPATH) { int role; - role = le16_to_cpu(sb->dev_roles[rdev->desc_nr]); + if (rdev->desc_nr < 0 || + rdev->desc_nr >= le32_to_cpu(sb->max_dev)) { + role = 0xffff; + rdev->desc_nr = -1; + } else + role = le16_to_cpu(sb->dev_roles[rdev->desc_nr]); switch(role) { case 0xffff: /* spare */ break; -- cgit v1.2.3 From 70471dafe3390243c598a3165dfb86b8b8b3f4fe Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 3 Aug 2009 10:59:57 +1000 Subject: md: Handle growth of v1.x metadata correctly. The v1.x metadata does not have a fixed size and can grow when devices are added. If it grows enough to require an extra sector of storage, we need to update the 'sb_size' to match. Without this, md can write out an incomplete superblock with a bad checksum, which will be rejected when trying to re-assemble the array. Cc: stable@kernel.org Signed-off-by: NeilBrown --- drivers/md/md.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index 249b2896d4e..52c988b072d 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1399,8 +1399,14 @@ static void super_1_sync(mddev_t *mddev, mdk_rdev_t *rdev) if (rdev2->desc_nr+1 > max_dev) max_dev = rdev2->desc_nr+1; - if (max_dev > le32_to_cpu(sb->max_dev)) + if (max_dev > le32_to_cpu(sb->max_dev)) { + int bmask; sb->max_dev = cpu_to_le32(max_dev); + rdev->sb_size = max_dev * 2 + 256; + bmask = queue_logical_block_size(rdev->bdev->bd_disk->queue)-1; + if (rdev->sb_size & bmask) + rdev->sb_size = (rdev->sb_size | bmask) + 1; + } for (i=0; idev_roles[i] = cpu_to_le16(0xfffe); -- cgit v1.2.3 From e516402c0d4fc02be4af9fa8c18954d4f9deb44e Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 3 Aug 2009 10:59:57 +1000 Subject: md/raid5: set reshape_position correctly when reshape starts. As the internal reshape_progress counter is the main driver for reshape, the fact that reshape_position sometimes starts with the wrong value has minimal effect. It is visible in sysfs and that is all. Signed-off-by: NeilBrown --- drivers/md/raid5.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 39374230a46..659151e5eda 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -5000,7 +5000,7 @@ static int raid5_start_reshape(mddev_t *mddev) spin_unlock_irqrestore(&conf->device_lock, flags); } mddev->raid_disks = conf->raid_disks; - mddev->reshape_position = 0; + mddev->reshape_position = conf->reshape_progress; set_bit(MD_CHANGE_DEVS, &mddev->flags); clear_bit(MD_RECOVERY_SYNC, &mddev->recovery); -- cgit v1.2.3 From 64bd660b51b2da92e99a5e97349f6558349f11c5 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 3 Aug 2009 10:59:58 +1000 Subject: md: allow raid5_quiesce to work properly when reshape is happening. The ->quiesce method is not supposed to stop resync/recovery/reshape, just normal IO. But in raid5 we don't have a way to know which stripes are being used for normal IO and which for resync etc, so we need to wait for all stripes to be idle to be sure that all writes have completed. However reshape keeps at least some stripe busy for an extended period of time, so a call to raid5_quiesce can block for several seconds needlessly. So arrange for reshape etc to pause briefly while raid5_quiesce is trying to quiesce the array so that the active_stripes count can drop to zero. Signed-off-by: NeilBrown --- drivers/md/raid5.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 659151e5eda..2dc35b4c20a 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3999,6 +3999,9 @@ static inline sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *ski return 0; } + /* Allow raid5_quiesce to complete */ + wait_event(conf->wait_for_overlap, conf->quiesce != 2); + if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery)) return reshape_request(mddev, sector_nr, skipped); @@ -5104,12 +5107,18 @@ static void raid5_quiesce(mddev_t *mddev, int state) case 1: /* stop all writes */ spin_lock_irq(&conf->device_lock); - conf->quiesce = 1; + /* '2' tells resync/reshape to pause so that all + * active stripes can drain + */ + conf->quiesce = 2; wait_event_lock_irq(conf->wait_for_stripe, atomic_read(&conf->active_stripes) == 0 && atomic_read(&conf->active_aligned_reads) == 0, conf->device_lock, /* nothing */); + conf->quiesce = 1; spin_unlock_irq(&conf->device_lock); + /* allow reshape to continue */ + wake_up(&conf->wait_for_overlap); break; case 0: /* re-enable writes */ -- cgit v1.2.3 From 449aad3e25358812c43afc60918c5ad3819488e7 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 3 Aug 2009 10:59:58 +1000 Subject: md: Use revalidate_disk to effect changes in size of device. As revalidate_disk calls check_disk_size_change, it will cause any capacity change of a gendisk to be propagated to the blockdev inode. So use that instead of mucking about with locks and i_size_write. Also add a call to revalidate_disk in do_md_run and a few other places where the gendisk capacity is changed. Signed-off-by: NeilBrown --- drivers/md/linear.c | 1 + drivers/md/md.c | 28 +++++----------------------- drivers/md/raid1.c | 1 + drivers/md/raid5.c | 12 ++---------- 4 files changed, 9 insertions(+), 33 deletions(-) diff --git a/drivers/md/linear.c b/drivers/md/linear.c index 54c8677f1e5..5fe39c2a3d2 100644 --- a/drivers/md/linear.c +++ b/drivers/md/linear.c @@ -257,6 +257,7 @@ static int linear_add(mddev_t *mddev, mdk_rdev_t *rdev) rcu_assign_pointer(mddev->private, newconf); md_set_array_sectors(mddev, linear_size(mddev, 0, 0)); set_capacity(mddev->gendisk, mddev->array_sectors); + revalidate_disk(mddev->gendisk); call_rcu(&oldconf->rcu, free_conf); return 0; } diff --git a/drivers/md/md.c b/drivers/md/md.c index 52c988b072d..5b98bea4ff9 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -3741,17 +3741,8 @@ array_size_store(mddev_t *mddev, const char *buf, size_t len) mddev->array_sectors = sectors; set_capacity(mddev->gendisk, mddev->array_sectors); - if (mddev->pers) { - struct block_device *bdev = bdget_disk(mddev->gendisk, 0); - - if (bdev) { - mutex_lock(&bdev->bd_inode->i_mutex); - i_size_write(bdev->bd_inode, - (loff_t)mddev->array_sectors << 9); - mutex_unlock(&bdev->bd_inode->i_mutex); - bdput(bdev); - } - } + if (mddev->pers) + revalidate_disk(mddev->gendisk); return len; } @@ -4241,6 +4232,7 @@ static int do_md_run(mddev_t * mddev) md_wakeup_thread(mddev->thread); md_wakeup_thread(mddev->sync_thread); /* possibly kick off a reshape */ + revalidate_disk(mddev->gendisk); mddev->changed = 1; md_new_event(mddev); sysfs_notify_dirent(mddev->sysfs_state); @@ -5139,18 +5131,8 @@ static int update_size(mddev_t *mddev, sector_t num_sectors) return -ENOSPC; } rv = mddev->pers->resize(mddev, num_sectors); - if (!rv) { - struct block_device *bdev; - - bdev = bdget_disk(mddev->gendisk, 0); - if (bdev) { - mutex_lock(&bdev->bd_inode->i_mutex); - i_size_write(bdev->bd_inode, - (loff_t)mddev->array_sectors << 9); - mutex_unlock(&bdev->bd_inode->i_mutex); - bdput(bdev); - } - } + if (!rv) + revalidate_disk(mddev->gendisk); return rv; } diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 67e794d0097..8726fd7ebce 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -2134,6 +2134,7 @@ static int raid1_resize(mddev_t *mddev, sector_t sectors) return -EINVAL; set_capacity(mddev->gendisk, mddev->array_sectors); mddev->changed = 1; + revalidate_disk(mddev->gendisk); if (sectors > mddev->dev_sectors && mddev->recovery_cp == MaxSector) { mddev->recovery_cp = mddev->dev_sectors; diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 2dc35b4c20a..2b521ee67df 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -4858,6 +4858,7 @@ static int raid5_resize(mddev_t *mddev, sector_t sectors) return -EINVAL; set_capacity(mddev->gendisk, mddev->array_sectors); mddev->changed = 1; + revalidate_disk(mddev->gendisk); if (sectors > mddev->dev_sectors && mddev->recovery_cp == MaxSector) { mddev->recovery_cp = mddev->dev_sectors; set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); @@ -5058,7 +5059,6 @@ static void end_reshape(raid5_conf_t *conf) */ static void raid5_finish_reshape(mddev_t *mddev) { - struct block_device *bdev; raid5_conf_t *conf = mddev->private; if (!test_bit(MD_RECOVERY_INTR, &mddev->recovery)) { @@ -5067,15 +5067,7 @@ static void raid5_finish_reshape(mddev_t *mddev) md_set_array_sectors(mddev, raid5_size(mddev, 0, 0)); set_capacity(mddev->gendisk, mddev->array_sectors); mddev->changed = 1; - - bdev = bdget_disk(mddev->gendisk, 0); - if (bdev) { - mutex_lock(&bdev->bd_inode->i_mutex); - i_size_write(bdev->bd_inode, - (loff_t)mddev->array_sectors << 9); - mutex_unlock(&bdev->bd_inode->i_mutex); - bdput(bdev); - } + revalidate_disk(mddev->gendisk); } else { int d; mddev->degraded = conf->raid_disks; -- cgit v1.2.3 From ce577e8cf5ddb4216553c9d563a9835d6de70ffa Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 3 Aug 2009 08:23:52 +0200 Subject: ALSA: hda - Fix quirk for Toshiba Satellite A135-S4527 Use model=lenovo instead of model=dallas for Toshiba Satellite A135-S4527 with ALC861-VD codec. Reference: Novell bnc#526325 https://bugzilla.novell.com/show_bug.cgi?id=526325 Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index b95df5d5dcc..f6b4cbf1ead 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -15157,7 +15157,7 @@ static struct snd_pci_quirk alc861vd_cfg_tbl[] = { SND_PCI_QUIRK(0x10de, 0x03f0, "Realtek ALC660 demo", ALC660VD_3ST), SND_PCI_QUIRK(0x1179, 0xff00, "Toshiba A135", ALC861VD_LENOVO), /*SND_PCI_QUIRK(0x1179, 0xff00, "DALLAS", ALC861VD_DALLAS),*/ /*lenovo*/ - SND_PCI_QUIRK(0x1179, 0xff01, "DALLAS", ALC861VD_DALLAS), + SND_PCI_QUIRK(0x1179, 0xff01, "Toshiba A135", ALC861VD_LENOVO), SND_PCI_QUIRK(0x1179, 0xff03, "Toshiba P205", ALC861VD_LENOVO), SND_PCI_QUIRK(0x1179, 0xff31, "Toshiba L30-149", ALC861VD_DALLAS), SND_PCI_QUIRK(0x1565, 0x820d, "Biostar NF61S SE", ALC861VD_6ST_DIG), -- cgit v1.2.3 From deadff1665491afce124a8ff83f00f784161f660 Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Sat, 1 Aug 2009 18:45:16 +0800 Subject: ALSA: hda: track CIRB/CORB command/response states for each codec Recently we hit a bug in our dev board, whose HDMI codec#3 may emit redundant/spurious responses, which were then taken as responses to command for another onboard Realtek codec#2, and mess up both codecs. Extend the azx_rb.cmds and azx_rb.res to array and track each codec's commands/responses separately. This helps keep good codec safe from broken ones. Signed-off-by: Wu Fengguang Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_codec.c | 2 +- sound/pci/hda/hda_codec.h | 2 +- sound/pci/hda/hda_intel.c | 76 +++++++++++++++++++++++++++++++++-------------- 3 files changed, 56 insertions(+), 24 deletions(-) diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 88480c0c58a..c7df01b72ca 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -174,7 +174,7 @@ static int codec_exec_verb(struct hda_codec *codec, unsigned int cmd, mutex_lock(&bus->cmd_mutex); err = bus->ops.command(bus, cmd); if (!err && res) - *res = bus->ops.get_response(bus); + *res = bus->ops.get_response(bus, codec->addr); mutex_unlock(&bus->cmd_mutex); snd_hda_power_down(codec); if (res && *res == -1 && bus->rirb_error) { diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h index cad79efaabc..1b75f28ed09 100644 --- a/sound/pci/hda/hda_codec.h +++ b/sound/pci/hda/hda_codec.h @@ -568,7 +568,7 @@ struct hda_bus_ops { /* send a single command */ int (*command)(struct hda_bus *bus, unsigned int cmd); /* get a response from the last command */ - unsigned int (*get_response)(struct hda_bus *bus); + unsigned int (*get_response)(struct hda_bus *bus, unsigned int addr); /* free the private data */ void (*private_free)(struct hda_bus *); /* attach a PCM stream */ diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 77c1b840ca8..19e67a1b602 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -253,7 +253,7 @@ enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 }; /* STATESTS int mask: S3,SD2,SD1,SD0 */ #define AZX_MAX_CODECS 4 -#define STATESTS_INT_MASK 0x0f +#define STATESTS_INT_MASK ((1 << AZX_MAX_CODECS) - 1) /* SD_CTL bits */ #define SD_CTL_STREAM_RESET 0x01 /* stream reset bit */ @@ -361,8 +361,8 @@ struct azx_rb { dma_addr_t addr; /* physical address of CORB/RIRB buffer */ /* for RIRB */ unsigned short rp, wp; /* read/write pointers */ - int cmds; /* number of pending requests */ - u32 res; /* last read value */ + int cmds[AZX_MAX_CODECS]; /* number of pending requests */ + u32 res[AZX_MAX_CODECS]; /* last read value */ }; struct azx { @@ -531,7 +531,8 @@ static void azx_init_cmd_io(struct azx *chip) /* RIRB set up */ chip->rirb.addr = chip->rb.addr + 2048; chip->rirb.buf = (u32 *)(chip->rb.area + 2048); - chip->rirb.wp = chip->rirb.rp = chip->rirb.cmds = 0; + chip->rirb.wp = chip->rirb.rp = 0; + memset(chip->rirb.cmds, 0, sizeof(chip->rirb.cmds)); azx_writel(chip, RIRBLBASE, (u32)chip->rirb.addr); azx_writel(chip, RIRBUBASE, upper_32_bits(chip->rirb.addr)); @@ -552,10 +553,35 @@ static void azx_free_cmd_io(struct azx *chip) azx_writeb(chip, CORBCTL, 0); } +static unsigned int azx_command_addr(u32 cmd) +{ + unsigned int addr = cmd >> 28; + + if (addr >= AZX_MAX_CODECS) { + snd_BUG(); + addr = 0; + } + + return addr; +} + +static unsigned int azx_response_addr(u32 res) +{ + unsigned int addr = res & 0xf; + + if (addr >= AZX_MAX_CODECS) { + snd_BUG(); + addr = 0; + } + + return addr; +} + /* send a command */ static int azx_corb_send_cmd(struct hda_bus *bus, u32 val) { struct azx *chip = bus->private_data; + unsigned int addr = azx_command_addr(val); unsigned int wp; /* add command to corb */ @@ -564,7 +590,7 @@ static int azx_corb_send_cmd(struct hda_bus *bus, u32 val) wp %= ICH6_MAX_CORB_ENTRIES; spin_lock_irq(&chip->reg_lock); - chip->rirb.cmds++; + chip->rirb.cmds[addr]++; chip->corb.buf[wp] = cpu_to_le32(val); azx_writel(chip, CORBWP, wp); spin_unlock_irq(&chip->reg_lock); @@ -578,13 +604,14 @@ static int azx_corb_send_cmd(struct hda_bus *bus, u32 val) static void azx_update_rirb(struct azx *chip) { unsigned int rp, wp; + unsigned int addr; u32 res, res_ex; wp = azx_readb(chip, RIRBWP); if (wp == chip->rirb.wp) return; chip->rirb.wp = wp; - + while (chip->rirb.rp != wp) { chip->rirb.rp++; chip->rirb.rp %= ICH6_MAX_RIRB_ENTRIES; @@ -592,18 +619,20 @@ static void azx_update_rirb(struct azx *chip) rp = chip->rirb.rp << 1; /* an RIRB entry is 8-bytes */ res_ex = le32_to_cpu(chip->rirb.buf[rp + 1]); res = le32_to_cpu(chip->rirb.buf[rp]); + addr = azx_response_addr(res_ex); if (res_ex & ICH6_RIRB_EX_UNSOL_EV) snd_hda_queue_unsol_event(chip->bus, res, res_ex); - else if (chip->rirb.cmds) { - chip->rirb.res = res; + else if (chip->rirb.cmds[addr]) { + chip->rirb.res[addr] = res; smp_wmb(); - chip->rirb.cmds--; + chip->rirb.cmds[addr]--; } } } /* receive a response */ -static unsigned int azx_rirb_get_response(struct hda_bus *bus) +static unsigned int azx_rirb_get_response(struct hda_bus *bus, + unsigned int addr) { struct azx *chip = bus->private_data; unsigned long timeout; @@ -616,10 +645,10 @@ static unsigned int azx_rirb_get_response(struct hda_bus *bus) azx_update_rirb(chip); spin_unlock_irq(&chip->reg_lock); } - if (!chip->rirb.cmds) { + if (!chip->rirb.cmds[addr]) { smp_rmb(); bus->rirb_error = 0; - return chip->rirb.res; /* the last value */ + return chip->rirb.res[addr]; /* the last value */ } if (time_after(jiffies, timeout)) break; @@ -692,7 +721,7 @@ static unsigned int azx_rirb_get_response(struct hda_bus *bus) */ /* receive a response */ -static int azx_single_wait_for_response(struct azx *chip) +static int azx_single_wait_for_response(struct azx *chip, unsigned int addr) { int timeout = 50; @@ -700,7 +729,7 @@ static int azx_single_wait_for_response(struct azx *chip) /* check IRV busy bit */ if (azx_readw(chip, IRS) & ICH6_IRS_VALID) { /* reuse rirb.res as the response return value */ - chip->rirb.res = azx_readl(chip, IR); + chip->rirb.res[addr] = azx_readl(chip, IR); return 0; } udelay(1); @@ -708,7 +737,7 @@ static int azx_single_wait_for_response(struct azx *chip) if (printk_ratelimit()) snd_printd(SFX "get_response timeout: IRS=0x%x\n", azx_readw(chip, IRS)); - chip->rirb.res = -1; + chip->rirb.res[addr] = -1; return -EIO; } @@ -716,6 +745,7 @@ static int azx_single_wait_for_response(struct azx *chip) static int azx_single_send_cmd(struct hda_bus *bus, u32 val) { struct azx *chip = bus->private_data; + unsigned int addr = azx_command_addr(val); int timeout = 50; bus->rirb_error = 0; @@ -728,7 +758,7 @@ static int azx_single_send_cmd(struct hda_bus *bus, u32 val) azx_writel(chip, IC, val); azx_writew(chip, IRS, azx_readw(chip, IRS) | ICH6_IRS_BUSY); - return azx_single_wait_for_response(chip); + return azx_single_wait_for_response(chip, addr); } udelay(1); } @@ -739,10 +769,11 @@ static int azx_single_send_cmd(struct hda_bus *bus, u32 val) } /* receive a response */ -static unsigned int azx_single_get_response(struct hda_bus *bus) +static unsigned int azx_single_get_response(struct hda_bus *bus, + unsigned int addr) { struct azx *chip = bus->private_data; - return chip->rirb.res; + return chip->rirb.res[addr]; } /* @@ -765,13 +796,14 @@ static int azx_send_cmd(struct hda_bus *bus, unsigned int val) } /* get a response */ -static unsigned int azx_get_response(struct hda_bus *bus) +static unsigned int azx_get_response(struct hda_bus *bus, + unsigned int addr) { struct azx *chip = bus->private_data; if (chip->single_cmd) - return azx_single_get_response(bus); + return azx_single_get_response(bus, addr); else - return azx_rirb_get_response(bus); + return azx_rirb_get_response(bus, addr); } #ifdef CONFIG_SND_HDA_POWER_SAVE @@ -1245,7 +1277,7 @@ static int probe_codec(struct azx *chip, int addr) chip->probing = 1; azx_send_cmd(chip->bus, cmd); - res = azx_get_response(chip->bus); + res = azx_get_response(chip->bus, addr); chip->probing = 0; if (res == -1) return -EIO; -- cgit v1.2.3 From a678cdee25a387c8fc3b2754974695412baf1d85 Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Sat, 1 Aug 2009 18:46:46 +0800 Subject: ALSA: hda: take cmd_mutex in probe_codec() Now that each codec will have its own module, it is possible for the user to load one codec while another one is running. So cmd_mutex would be a safe addition to probe_codec(). Signed-off-by: Wu Fengguang Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_intel.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 19e67a1b602..ddabc827ac4 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -1275,10 +1275,12 @@ static int probe_codec(struct azx *chip, int addr) (AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID; unsigned int res; + mutex_lock(&chip->bus->cmd_mutex); chip->probing = 1; azx_send_cmd(chip->bus, cmd); res = azx_get_response(chip->bus, addr); chip->probing = 0; + mutex_unlock(&chip->bus->cmd_mutex); if (res == -1) return -EIO; snd_printdd(SFX "codec #%d probed OK\n", addr); -- cgit v1.2.3 From cdb1fbf23181c133fb24f12ad14ccea7dc399599 Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Sat, 1 Aug 2009 18:47:41 +0800 Subject: ALSA: hda: take reg_lock in azx_init_cmd_io/azx_free_cmd_io Just for safety. azx_init_cmd_io() and azx_free_cmd_io() may be called when switching to single command mode. Signed-off-by: Wu Fengguang Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_intel.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index ddabc827ac4..b6e6314d006 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -513,6 +513,7 @@ static int azx_alloc_cmd_io(struct azx *chip) static void azx_init_cmd_io(struct azx *chip) { + spin_lock_irq(&chip->reg_lock); /* CORB set up */ chip->corb.addr = chip->rb.addr; chip->corb.buf = (u32 *)chip->rb.area; @@ -544,13 +545,16 @@ static void azx_init_cmd_io(struct azx *chip) azx_writew(chip, RINTCNT, 1); /* enable rirb dma and response irq */ azx_writeb(chip, RIRBCTL, ICH6_RBCTL_DMA_EN | ICH6_RBCTL_IRQ_EN); + spin_unlock_irq(&chip->reg_lock); } static void azx_free_cmd_io(struct azx *chip) { + spin_lock_irq(&chip->reg_lock); /* disable ringbuffer DMAs */ azx_writeb(chip, RIRBCTL, 0); azx_writeb(chip, CORBCTL, 0); + spin_unlock_irq(&chip->reg_lock); } static unsigned int azx_command_addr(u32 cmd) -- cgit v1.2.3 From c32649feb4573b31f0a2bfdf35cbe1351256c764 Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Sat, 1 Aug 2009 18:48:12 +0800 Subject: ALSA: hda: read CORBWP inside reg_lock This converts the last CORBWP access outside of reg_lock. Signed-off-by: Wu Fengguang Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_intel.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index b6e6314d006..df6d9820efa 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -588,15 +588,17 @@ static int azx_corb_send_cmd(struct hda_bus *bus, u32 val) unsigned int addr = azx_command_addr(val); unsigned int wp; + spin_lock_irq(&chip->reg_lock); + /* add command to corb */ wp = azx_readb(chip, CORBWP); wp++; wp %= ICH6_MAX_CORB_ENTRIES; - spin_lock_irq(&chip->reg_lock); chip->rirb.cmds[addr]++; chip->corb.buf[wp] = cpu_to_le32(val); azx_writel(chip, CORBWP, wp); + spin_unlock_irq(&chip->reg_lock); return 0; -- cgit v1.2.3 From feb273404f15d86098cb0e81e46330d5c1e22b1b Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Sat, 1 Aug 2009 19:17:14 +0800 Subject: ALSA: hda: remember last command for each codec Signed-off-by: Wu Fengguang Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_intel.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index df6d9820efa..7c43f92de2f 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -418,7 +418,7 @@ struct azx { unsigned int probing :1; /* codec probing phase */ /* for debugging */ - unsigned int last_cmd; /* last issued command (to sync) */ + unsigned int last_cmd[AZX_MAX_CODECS]; /* for pending irqs */ struct work_struct irq_pending_work; @@ -668,7 +668,8 @@ static unsigned int azx_rirb_get_response(struct hda_bus *bus, if (chip->msi) { snd_printk(KERN_WARNING SFX "No response from codec, " - "disabling MSI: last cmd=0x%08x\n", chip->last_cmd); + "disabling MSI: last cmd=0x%08x\n", + chip->last_cmd[addr]); free_irq(chip->irq, chip); chip->irq = -1; pci_disable_msi(chip->pci); @@ -683,7 +684,7 @@ static unsigned int azx_rirb_get_response(struct hda_bus *bus, if (!chip->polling_mode) { snd_printk(KERN_WARNING SFX "azx_get_response timeout, " "switching to polling mode: last cmd=0x%08x\n", - chip->last_cmd); + chip->last_cmd[addr]); chip->polling_mode = 1; goto again; } @@ -707,7 +708,7 @@ static unsigned int azx_rirb_get_response(struct hda_bus *bus, snd_printk(KERN_ERR "hda_intel: azx_get_response timeout, " "switching to single_cmd mode: last cmd=0x%08x\n", - chip->last_cmd); + chip->last_cmd[addr]); chip->single_cmd = 1; bus->response_reset = 0; /* re-initialize CORB/RIRB */ @@ -794,7 +795,7 @@ static int azx_send_cmd(struct hda_bus *bus, unsigned int val) { struct azx *chip = bus->private_data; - chip->last_cmd = val; + chip->last_cmd[azx_command_addr(val)] = val; if (chip->single_cmd) return azx_single_send_cmd(bus, val); else -- cgit v1.2.3 From e310bb0646e57a4f9182865115c5780931456c65 Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Sat, 1 Aug 2009 19:18:45 +0800 Subject: ALSA: hda: warn on spurious response To help disclose hardware bugs. Signed-off-by: Wu Fengguang Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_intel.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 7c43f92de2f..175f07a381b 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -632,7 +632,11 @@ static void azx_update_rirb(struct azx *chip) chip->rirb.res[addr] = res; smp_wmb(); chip->rirb.cmds[addr]--; - } + } else + snd_printk(KERN_ERR SFX "spurious response %#x:%#x, " + "last cmd=%#08x\n", + res, res_ex, + chip->last_cmd[addr]); } } -- cgit v1.2.3 From 84d3dc200fc8b878acf7c1840b238e6a0450e4d0 Mon Sep 17 00:00:00 2001 From: Chengu Wang Date: Thu, 30 Jul 2009 19:43:55 +0800 Subject: ALSA: hda: Correct EAPD for Dell Inspiron 1525 The commit 24918b61b55c21e09a3e07cd82e1b3a8154782dc statically changes the model from dell-bios to dell-3stack to solve the sound decreasing regression (http://lkml.org/lkml/2008/9/12/203), however it leads to another problem that the 2nd headphone jack doesn't work (https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3987). So I think the commit 249**2dc is just a workaround. I would like to give a true solution here. The datasheet for STAC9228 says, GPIO2 is the same pin as VOL DOWN, and the EAPD pin is GPIO0. This is why the sound decreases if we set EAPD as GPIO2. This patch changes EAPD to GPIO0 to solve the problem. Signed-off-by: Chengu Wang Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_sigmatel.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 5383d8cff88..456ef6ac12e 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -2266,7 +2266,7 @@ static struct snd_pci_quirk stac927x_cfg_tbl[] = { SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x01f3, "Dell Inspiron 1420", STAC_DELL_BIOS), SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x0227, "Dell Vostro 1400 ", STAC_DELL_BIOS), SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x022e, "Dell ", STAC_DELL_BIOS), - SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x022f, "Dell Inspiron 1525", STAC_DELL_3ST), + SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x022f, "Dell Inspiron 1525", STAC_DELL_BIOS), SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x0242, "Dell ", STAC_DELL_BIOS), SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x0243, "Dell ", STAC_DELL_BIOS), SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x02ff, "Dell ", STAC_DELL_BIOS), @@ -5645,6 +5645,13 @@ static int patch_stac927x(struct hda_codec *codec) /* GPIO2 High = Enable EAPD */ spec->eapd_mask = spec->gpio_mask = spec->gpio_dir = 0x04; spec->gpio_data = 0x04; + switch (codec->subsystem_id) { + case 0x1028022f: + /* correct EAPD to be GPIO0 */ + spec->eapd_mask = spec->gpio_mask = 0x01; + spec->gpio_dir = spec->gpio_data = 0x01; + break; + }; spec->dmic_nids = stac927x_dmic_nids; spec->num_dmics = STAC927X_NUM_DMICS; -- cgit v1.2.3 From 4b35d2ca2307d40ccb6b3b6f9cc25ac9178b2a6c Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Sun, 2 Aug 2009 13:30:45 +0200 Subject: ALSA: hda - Read buffer overflow Check whether index is within bounds before testing the element. Signed-off-by: Roel Kluin Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index f6b4cbf1ead..51c44fdbc0f 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -559,7 +559,7 @@ static int alc_pin_mode_get(struct snd_kcontrol *kcontrol, /* Find enumerated value for current pinctl setting */ i = alc_pin_mode_min(dir); - while (alc_pin_mode_values[i] != pinctl && i <= alc_pin_mode_max(dir)) + while (i <= alc_pin_mode_max(dir) && alc_pin_mode_values[i] != pinctl) i++; *valp = i <= alc_pin_mode_max(dir) ? i: alc_pin_mode_min(dir); return 0; -- cgit v1.2.3 From 7699ad35ed06044c4fc1be162553880f98658616 Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Mon, 15 Jun 2009 01:10:18 -0400 Subject: mtd: let include/linux/mtd/partitions.h stand on its own When declaring static MTD partitions in board specific code, only including should suffice without gcc nagging us with: In file included from arch/arm/mach-kirkwood/sheevaplug-setup.c:14: include/linux/mtd/partitions.h:50: warning: 'struct mtd_info' declared inside parameter list include/linux/mtd/partitions.h:50: warning: its scope is only this definition or declaration, which is probably not what you want include/linux/mtd/partitions.h:51: warning: 'struct mtd_info' declared inside parameter list include/linux/mtd/partitions.h:61: warning: 'struct mtd_info' declared inside parameter list include/linux/mtd/partitions.h:67: warning: 'struct mtd_info' declared inside parameter list Signed-off-by: Nicolas Pitre Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- include/linux/mtd/partitions.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h index af6dcb992bc..b70313d33ff 100644 --- a/include/linux/mtd/partitions.h +++ b/include/linux/mtd/partitions.h @@ -47,6 +47,8 @@ struct mtd_partition { #define MTDPART_SIZ_FULL (0) +struct mtd_info; + int add_mtd_partitions(struct mtd_info *, const struct mtd_partition *, int); int del_mtd_partitions(struct mtd_info *); -- cgit v1.2.3 From 6afc4fdb3e94ba60cd566cb878b60c6c01979277 Mon Sep 17 00:00:00 2001 From: Saeed Bishara Date: Tue, 28 Jul 2009 04:56:43 -0700 Subject: mtd: fix the conversion from dev to mtd_info The patch fixes a bug when converting dev to mtd_info by using the drvdata of the dev, the previous code used container_of(dev, struct mtd_info, dev), but won't work for the mtdXro devices as they created without being contained inside mtd_info structure. Signed-off-by: Saeed Bishara Signed-off-by: David Woodhouse --- drivers/mtd/mtdcore.c | 7 ++++--- include/linux/mtd/mtd.h | 2 +- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index fac54a3fa3f..00ebf7af746 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -65,8 +65,8 @@ static void mtd_release(struct device *dev) static int mtd_cls_suspend(struct device *dev, pm_message_t state) { struct mtd_info *mtd = dev_to_mtd(dev); - - if (mtd->suspend) + + if (mtd && mtd->suspend) return mtd->suspend(mtd); else return 0; @@ -76,7 +76,7 @@ static int mtd_cls_resume(struct device *dev) { struct mtd_info *mtd = dev_to_mtd(dev); - if (mtd->resume) + if (mtd && mtd->resume) mtd->resume(mtd); return 0; } @@ -298,6 +298,7 @@ int add_mtd_device(struct mtd_info *mtd) mtd->dev.class = &mtd_class; mtd->dev.devt = MTD_DEVT(i); dev_set_name(&mtd->dev, "mtd%d", i); + dev_set_drvdata(&mtd->dev, mtd); if (device_register(&mtd->dev) != 0) { mtd_table[i] = NULL; break; diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 5675b63a063..0f32a9b6ff5 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -251,7 +251,7 @@ struct mtd_info { static inline struct mtd_info *dev_to_mtd(struct device *dev) { - return dev ? container_of(dev, struct mtd_info, dev) : NULL; + return dev ? dev_get_drvdata(dev) : NULL; } static inline uint32_t mtd_div_by_eb(uint64_t sz, struct mtd_info *mtd) -- cgit v1.2.3 From 8022c13c27b822cf22f13df10b42aae89cd56bf0 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Fri, 10 Jul 2009 17:02:17 +0300 Subject: mtd: blkdevs: do not forget to get MTD devices Nowadays MTD devices have to be "get" before they can be used. This has to be done with 'get_mtd_device()'. The 'blktrans_open()' function did not do this and instead used 'try_module_get()'. Fix this. Since 'get_mtd_device()' already gets the module, extra 'try_module_get()' is not needed. This fixes oops when one tries to use mtdblock on top of gluebi. Reported-by: Holger Brunck Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/mtd_blkdevs.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index c3f62654b6d..7baba40c1ed 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -144,7 +144,7 @@ static int blktrans_open(struct block_device *bdev, fmode_t mode) struct mtd_blktrans_ops *tr = dev->tr; int ret = -ENODEV; - if (!try_module_get(dev->mtd->owner)) + if (!get_mtd_device(NULL, dev->mtd->index)) goto out; if (!try_module_get(tr->owner)) @@ -158,7 +158,7 @@ static int blktrans_open(struct block_device *bdev, fmode_t mode) ret = 0; if (tr->open && (ret = tr->open(dev))) { dev->mtd->usecount--; - module_put(dev->mtd->owner); + put_mtd_device(dev->mtd); out_tr: module_put(tr->owner); } @@ -177,7 +177,7 @@ static int blktrans_release(struct gendisk *disk, fmode_t mode) if (!ret) { dev->mtd->usecount--; - module_put(dev->mtd->owner); + put_mtd_device(dev->mtd); module_put(tr->owner); } -- cgit v1.2.3 From 00acf4a80779611a7ea77ff5b5ffab886ed5cc42 Mon Sep 17 00:00:00 2001 From: Mika Korhonen Date: Thu, 11 Jun 2009 14:05:07 +0300 Subject: mtd: OneNAND: fix incorrect bufferram offset Fixes the case where CONFIG_MTD_ONENAND_2X_PROGRAM is set and the real page size differs from mtd_info.writesize. Signed-off-by: Mika Korhonen Acked-by: Kyungmin Park Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/onenand/omap2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c index 38d656b9b2e..6fac1f496d4 100644 --- a/drivers/mtd/onenand/omap2.c +++ b/drivers/mtd/onenand/omap2.c @@ -266,7 +266,7 @@ static inline int omap2_onenand_bufferram_offset(struct mtd_info *mtd, int area) if (ONENAND_CURRENT_BUFFERRAM(this)) { if (area == ONENAND_DATARAM) - return mtd->writesize; + return this->writesize; if (area == ONENAND_SPARERAM) return mtd->oobsize; } -- cgit v1.2.3 From 3cae1cc149c40c14424162496eb5a7c8db1cd4fb Mon Sep 17 00:00:00 2001 From: Mika Korhonen Date: Thu, 25 Jun 2009 15:32:19 +0300 Subject: mtd: OneNAND: OMAP2/3: free GPMC CS on module removal GPMC CS was not freed in omap2_onenand_remove() preventing the module from reloading after removal. Signed-off-by: Mika Korhonen Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/onenand/omap2.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c index 6fac1f496d4..0108ed42e87 100644 --- a/drivers/mtd/onenand/omap2.c +++ b/drivers/mtd/onenand/omap2.c @@ -770,6 +770,7 @@ static int __devexit omap2_onenand_remove(struct platform_device *pdev) } iounmap(c->onenand.base); release_mem_region(c->phys_base, ONENAND_IO_SIZE); + gpmc_cs_free(c->gpmc_cs); kfree(c); return 0; -- cgit v1.2.3 From 2bf961b7ccd69e108ac435c67e2b0522b403c578 Mon Sep 17 00:00:00 2001 From: Subrata Modak Date: Wed, 1 Jul 2009 19:22:47 +0530 Subject: mtd: remove 'SBC8240 Wind River' Device Driver Code This driver is causing build errors and is no longer needed -- it is obsoleted by physmap_of. Signed-off-by: Subrata Modak Tested-on-PPC64-by: Subrata Modak Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/maps/Kconfig | 7 -- drivers/mtd/maps/Makefile | 1 - drivers/mtd/maps/sbc8240.c | 250 --------------------------------------------- 3 files changed, 258 deletions(-) diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig index 0b98654d8ee..7a58bd5522f 100644 --- a/drivers/mtd/maps/Kconfig +++ b/drivers/mtd/maps/Kconfig @@ -284,13 +284,6 @@ config MTD_L440GX BE VERY CAREFUL. -config MTD_SBC8240 - tristate "Flash device on SBC8240" - depends on MTD_JEDECPROBE && 8260 - help - Flash access on the SBC8240 board from Wind River. See - - config MTD_TQM8XXL tristate "CFI Flash device mapped on TQM8XXL" depends on MTD_CFI && TQM8xxL diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile index 8bae7f9850c..5beb0662d72 100644 --- a/drivers/mtd/maps/Makefile +++ b/drivers/mtd/maps/Makefile @@ -50,7 +50,6 @@ obj-$(CONFIG_MTD_UCLINUX) += uclinux.o obj-$(CONFIG_MTD_NETtel) += nettel.o obj-$(CONFIG_MTD_SCB2_FLASH) += scb2_flash.o obj-$(CONFIG_MTD_H720X) += h720x-flash.o -obj-$(CONFIG_MTD_SBC8240) += sbc8240.o obj-$(CONFIG_MTD_IXP4XX) += ixp4xx.o obj-$(CONFIG_MTD_IXP2000) += ixp2000.o obj-$(CONFIG_MTD_WRSBC8260) += wr_sbc82xx_flash.o diff --git a/drivers/mtd/maps/sbc8240.c b/drivers/mtd/maps/sbc8240.c index d5374cdcb16..e69de29bb2d 100644 --- a/drivers/mtd/maps/sbc8240.c +++ b/drivers/mtd/maps/sbc8240.c @@ -1,250 +0,0 @@ -/* - * Handle mapping of the flash memory access routines on the SBC8240 board. - * - * Carolyn Smith, Tektronix, Inc. - * - * This code is GPLed - */ - -/* - * The SBC8240 has 2 flash banks. - * Bank 0 is a 512 KiB AMD AM29F040B; 8 x 64 KiB sectors. - * It contains the U-Boot code (7 sectors) and the environment (1 sector). - * Bank 1 is 4 x 1 MiB AMD AM29LV800BT; 15 x 64 KiB sectors, 1 x 32 KiB sector, - * 2 x 8 KiB sectors, 1 x 16 KiB sectors. - * Both parts are JEDEC compatible. - */ - -#include -#include -#include -#include - -#include -#include -#include - -#ifdef CONFIG_MTD_PARTITIONS -#include -#endif - -#define DEBUG - -#ifdef DEBUG -# define debugk(fmt,args...) printk(fmt ,##args) -#else -# define debugk(fmt,args...) -#endif - - -#define WINDOW_ADDR0 0xFFF00000 /* 512 KiB */ -#define WINDOW_SIZE0 0x00080000 -#define BUSWIDTH0 1 - -#define WINDOW_ADDR1 0xFF000000 /* 4 MiB */ -#define WINDOW_SIZE1 0x00400000 -#define BUSWIDTH1 8 - -#define MSG_PREFIX "sbc8240:" /* prefix for our printk()'s */ -#define MTDID "sbc8240-%d" /* for mtdparts= partitioning */ - - -static struct map_info sbc8240_map[2] = { - { - .name = "sbc8240 Flash Bank #0", - .size = WINDOW_SIZE0, - .bankwidth = BUSWIDTH0, - }, - { - .name = "sbc8240 Flash Bank #1", - .size = WINDOW_SIZE1, - .bankwidth = BUSWIDTH1, - } -}; - -#define NUM_FLASH_BANKS ARRAY_SIZE(sbc8240_map) - -/* - * The following defines the partition layout of SBC8240 boards. - * - * See include/linux/mtd/partitions.h for definition of the - * mtd_partition structure. - * - * The *_max_flash_size is the maximum possible mapped flash size - * which is not necessarily the actual flash size. It must correspond - * to the value specified in the mapping definition defined by the - * "struct map_desc *_io_desc" for the corresponding machine. - */ - -#ifdef CONFIG_MTD_PARTITIONS - -static struct mtd_partition sbc8240_uboot_partitions [] = { - /* Bank 0 */ - { - .name = "U-boot", /* U-Boot Firmware */ - .offset = 0, - .size = 0x00070000, /* 7 x 64 KiB sectors */ - .mask_flags = MTD_WRITEABLE, /* force read-only */ - }, - { - .name = "environment", /* U-Boot environment */ - .offset = 0x00070000, - .size = 0x00010000, /* 1 x 64 KiB sector */ - }, -}; - -static struct mtd_partition sbc8240_fs_partitions [] = { - { - .name = "jffs", /* JFFS filesystem */ - .offset = 0, - .size = 0x003C0000, /* 4 * 15 * 64KiB */ - }, - { - .name = "tmp32", - .offset = 0x003C0000, - .size = 0x00020000, /* 4 * 32KiB */ - }, - { - .name = "tmp8a", - .offset = 0x003E0000, - .size = 0x00008000, /* 4 * 8KiB */ - }, - { - .name = "tmp8b", - .offset = 0x003E8000, - .size = 0x00008000, /* 4 * 8KiB */ - }, - { - .name = "tmp16", - .offset = 0x003F0000, - .size = 0x00010000, /* 4 * 16KiB */ - } -}; - -/* trivial struct to describe partition information */ -struct mtd_part_def -{ - int nums; - unsigned char *type; - struct mtd_partition* mtd_part; -}; - -static struct mtd_info *sbc8240_mtd[NUM_FLASH_BANKS]; -static struct mtd_part_def sbc8240_part_banks[NUM_FLASH_BANKS]; - - -#endif /* CONFIG_MTD_PARTITIONS */ - - -static int __init init_sbc8240_mtd (void) -{ - static struct _cjs { - u_long addr; - u_long size; - } pt[NUM_FLASH_BANKS] = { - { - .addr = WINDOW_ADDR0, - .size = WINDOW_SIZE0 - }, - { - .addr = WINDOW_ADDR1, - .size = WINDOW_SIZE1 - }, - }; - - int devicesfound = 0; - int i,j; - - for (i = 0; i < NUM_FLASH_BANKS; i++) { - printk (KERN_NOTICE MSG_PREFIX - "Probing 0x%08lx at 0x%08lx\n", pt[i].size, pt[i].addr); - - sbc8240_map[i].map_priv_1 = - (unsigned long) ioremap (pt[i].addr, pt[i].size); - if (!sbc8240_map[i].map_priv_1) { - printk (MSG_PREFIX "failed to ioremap\n"); - for (j = 0; j < i; j++) { - iounmap((void *) sbc8240_map[j].map_priv_1); - sbc8240_map[j].map_priv_1 = 0; - } - return -EIO; - } - simple_map_init(&sbc8240_mtd[i]); - - sbc8240_mtd[i] = do_map_probe("jedec_probe", &sbc8240_map[i]); - - if (sbc8240_mtd[i]) { - sbc8240_mtd[i]->module = THIS_MODULE; - devicesfound++; - } else { - if (sbc8240_map[i].map_priv_1) { - iounmap((void *) sbc8240_map[i].map_priv_1); - sbc8240_map[i].map_priv_1 = 0; - } - } - } - - if (!devicesfound) { - printk(KERN_NOTICE MSG_PREFIX - "No suppported flash chips found!\n"); - return -ENXIO; - } - -#ifdef CONFIG_MTD_PARTITIONS - sbc8240_part_banks[0].mtd_part = sbc8240_uboot_partitions; - sbc8240_part_banks[0].type = "static image"; - sbc8240_part_banks[0].nums = ARRAY_SIZE(sbc8240_uboot_partitions); - sbc8240_part_banks[1].mtd_part = sbc8240_fs_partitions; - sbc8240_part_banks[1].type = "static file system"; - sbc8240_part_banks[1].nums = ARRAY_SIZE(sbc8240_fs_partitions); - - for (i = 0; i < NUM_FLASH_BANKS; i++) { - - if (!sbc8240_mtd[i]) continue; - if (sbc8240_part_banks[i].nums == 0) { - printk (KERN_NOTICE MSG_PREFIX - "No partition info available, registering whole device\n"); - add_mtd_device(sbc8240_mtd[i]); - } else { - printk (KERN_NOTICE MSG_PREFIX - "Using %s partition definition\n", sbc8240_part_banks[i].mtd_part->name); - add_mtd_partitions (sbc8240_mtd[i], - sbc8240_part_banks[i].mtd_part, - sbc8240_part_banks[i].nums); - } - } -#else - printk(KERN_NOTICE MSG_PREFIX - "Registering %d flash banks at once\n", devicesfound); - - for (i = 0; i < devicesfound; i++) { - add_mtd_device(sbc8240_mtd[i]); - } -#endif /* CONFIG_MTD_PARTITIONS */ - - return devicesfound == 0 ? -ENXIO : 0; -} - -static void __exit cleanup_sbc8240_mtd (void) -{ - int i; - - for (i = 0; i < NUM_FLASH_BANKS; i++) { - if (sbc8240_mtd[i]) { - del_mtd_device (sbc8240_mtd[i]); - map_destroy (sbc8240_mtd[i]); - } - if (sbc8240_map[i].map_priv_1) { - iounmap ((void *) sbc8240_map[i].map_priv_1); - sbc8240_map[i].map_priv_1 = 0; - } - } -} - -module_init (init_sbc8240_mtd); -module_exit (cleanup_sbc8240_mtd); - -MODULE_LICENSE ("GPL"); -MODULE_AUTHOR ("Carolyn Smith "); -MODULE_DESCRIPTION ("MTD map driver for SBC8240 boards"); - -- cgit v1.2.3 From d676c11727815761e41a81b00c054b4bec452ae5 Mon Sep 17 00:00:00 2001 From: Matthias Kaehlcke Date: Tue, 14 Jul 2009 22:04:29 +0200 Subject: mtd: mtdblock: introduce mtdblks_lock The mtdblks array and its content are prone to race conditions. Introduce the mutex mtdblks_lock in order to solve this. [Amended by Artem Bityutskiy] Signed-off-by: Matthias Kaehlcke Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/mtdblock.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c index 208c6faa035..77db5ce24d9 100644 --- a/drivers/mtd/mtdblock.c +++ b/drivers/mtd/mtdblock.c @@ -29,6 +29,8 @@ static struct mtdblk_dev { enum { STATE_EMPTY, STATE_CLEAN, STATE_DIRTY } cache_state; } *mtdblks[MAX_MTD_DEVICES]; +static struct mutex mtdblks_lock; + /* * Cache stuff... * @@ -270,15 +272,19 @@ static int mtdblock_open(struct mtd_blktrans_dev *mbd) DEBUG(MTD_DEBUG_LEVEL1,"mtdblock_open\n"); + mutex_lock(&mtdblks_lock); if (mtdblks[dev]) { mtdblks[dev]->count++; + mutex_unlock(&mtdblks_lock); return 0; } /* OK, it's not open. Create cache info for it */ mtdblk = kzalloc(sizeof(struct mtdblk_dev), GFP_KERNEL); - if (!mtdblk) + if (!mtdblk) { + mutex_unlock(&mtdblks_lock); return -ENOMEM; + } mtdblk->count = 1; mtdblk->mtd = mtd; @@ -291,6 +297,7 @@ static int mtdblock_open(struct mtd_blktrans_dev *mbd) } mtdblks[dev] = mtdblk; + mutex_unlock(&mtdblks_lock); DEBUG(MTD_DEBUG_LEVEL1, "ok\n"); @@ -304,6 +311,8 @@ static int mtdblock_release(struct mtd_blktrans_dev *mbd) DEBUG(MTD_DEBUG_LEVEL1, "mtdblock_release\n"); + mutex_lock(&mtdblks_lock); + mutex_lock(&mtdblk->cache_mutex); write_cached_data(mtdblk); mutex_unlock(&mtdblk->cache_mutex); @@ -316,6 +325,9 @@ static int mtdblock_release(struct mtd_blktrans_dev *mbd) vfree(mtdblk->cache_data); kfree(mtdblk); } + + mutex_unlock(&mtdblks_lock); + DEBUG(MTD_DEBUG_LEVEL1, "ok\n"); return 0; @@ -376,6 +388,8 @@ static struct mtd_blktrans_ops mtdblock_tr = { static int __init init_mtdblock(void) { + mutex_init(&mtdblks_lock); + return register_mtd_blktrans(&mtdblock_tr); } -- cgit v1.2.3 From 126b67b8d26f6623d199aa59279f2e3243f2144c Mon Sep 17 00:00:00 2001 From: Doug Thompson Date: Mon, 3 Aug 2009 12:37:06 +0200 Subject: amd64_edac: fix ECC checking On the good path of BIOS enabled ECC and no override, the value returned is 1 by omission and thus is deemed failing by the probe-function. Allow proper module initialization by clearing the retval explicitly. Signed-off-by: Doug Thompson Signed-off-by: Borislav Petkov --- drivers/edac/amd64_edac.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index 24964c1d0af..5fa924d61b1 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -2977,6 +2977,9 @@ static int amd64_check_ecc_enabled(struct amd64_pvt *pvt) "ECC is enabled by BIOS, Proceeding " "with EDAC module initialization\n"); + /* Signal good ECC status */ + ret = 0; + /* CLEAR the override, since BIOS controlled it */ ecc_enable_override = 0; } -- cgit v1.2.3 From 1c1a90d866c5fb029099b9f0f40534e01b7c4d91 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Sun, 5 Jul 2009 19:23:30 +0100 Subject: [PATCH] MIPS: Cavium: Move swapped comments to their rightful place. Signed-off-by: Ralf Baechle --- arch/mips/mm/c-octeon.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/mips/mm/c-octeon.c b/arch/mips/mm/c-octeon.c index b165cdcb281..10ab69f7183 100644 --- a/arch/mips/mm/c-octeon.c +++ b/arch/mips/mm/c-octeon.c @@ -289,7 +289,7 @@ static void cache_parity_error_octeon(int non_recoverable) } /** - * Called when the the exception is not recoverable + * Called when the the exception is recoverable */ asmlinkage void cache_parity_error_octeon_recoverable(void) @@ -298,7 +298,7 @@ asmlinkage void cache_parity_error_octeon_recoverable(void) } /** - * Called when the the exception is recoverable + * Called when the the exception is not recoverable */ asmlinkage void cache_parity_error_octeon_non_recoverable(void) -- cgit v1.2.3 From 49316cbf0a9875f102f98dc8b7c80cfa142e33cf Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 6 Jul 2009 09:13:17 +0100 Subject: MIPS: Eleminate filenames from comments They tend to get not updated when files are moved around or copied and lack any obvious use. While at it zap some only too obvious comments and as per Shinya's suggestion, add a copyright header to extable.c. Signed-off-by: Ralf Baechle Acked-by: Shinya Kuribayashi Acked-by: Thadeu Lima de Souza Cascardo --- arch/mips/dec/ecc-berr.c | 2 -- arch/mips/dec/int-handler.S | 2 -- arch/mips/dec/ioasic-irq.c | 2 -- arch/mips/dec/kn01-berr.c | 2 -- arch/mips/dec/kn02-irq.c | 2 -- arch/mips/dec/kn02xa-berr.c | 2 -- arch/mips/dec/prom/call_o32.S | 2 -- arch/mips/dec/prom/console.c | 2 -- arch/mips/dec/time.c | 2 -- arch/mips/emma/common/Makefile | 3 --- arch/mips/emma/common/prom.c | 3 --- arch/mips/emma/markeins/Makefile | 3 --- arch/mips/emma/markeins/irq.c | 3 --- arch/mips/emma/markeins/led.c | 3 --- arch/mips/emma/markeins/platform.c | 3 --- arch/mips/emma/markeins/setup.c | 3 --- arch/mips/fw/lib/call_o32.S | 2 -- arch/mips/include/asm/emma/emma2rh.h | 3 --- arch/mips/include/asm/emma/markeins.h | 3 --- arch/mips/kernel/irq_txx9.c | 2 -- arch/mips/kernel/proc.c | 2 -- arch/mips/kernel/stacktrace.c | 2 -- arch/mips/mm/extable.c | 6 +++++- arch/mips/pci/fixup-emma2rh.c | 3 --- arch/mips/pci/fixup-sb1250.c | 2 -- arch/mips/pci/ops-emma2rh.c | 3 --- arch/mips/pci/pci-emma2rh.c | 3 --- arch/mips/pci/pci-tx4927.c | 2 -- arch/mips/pci/pci-tx4938.c | 2 -- arch/mips/pci/pci-tx4939.c | 2 -- arch/mips/pmc-sierra/msp71xx/gpio.c | 2 -- arch/mips/pmc-sierra/msp71xx/gpio_extended.c | 2 -- arch/mips/pmc-sierra/yosemite/atmel_read_eeprom.c | 2 -- arch/mips/sibyte/swarm/swarm-i2c.c | 2 -- arch/mips/txx9/generic/mem_tx4927.c | 2 -- arch/mips/txx9/generic/setup.c | 2 -- 36 files changed, 5 insertions(+), 83 deletions(-) diff --git a/arch/mips/dec/ecc-berr.c b/arch/mips/dec/ecc-berr.c index 6a17c9b508e..7abce661b90 100644 --- a/arch/mips/dec/ecc-berr.c +++ b/arch/mips/dec/ecc-berr.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/dec/ecc-berr.c - * * Bus error event handling code for systems equipped with ECC * handling logic, i.e. DECstation/DECsystem 5000/200 (KN02), * 5000/240 (KN03), 5000/260 (KN05) and DECsystem 5900 (KN03), diff --git a/arch/mips/dec/int-handler.S b/arch/mips/dec/int-handler.S index 00cecdcc75f..82c85281878 100644 --- a/arch/mips/dec/int-handler.S +++ b/arch/mips/dec/int-handler.S @@ -1,6 +1,4 @@ /* - * arch/mips/dec/int-handler.S - * * Copyright (C) 1995, 1996, 1997 Paul M. Antoine and Harald Koerfgen * Copyright (C) 2000, 2001, 2002, 2003, 2005 Maciej W. Rozycki * diff --git a/arch/mips/dec/ioasic-irq.c b/arch/mips/dec/ioasic-irq.c index 3acb133668d..cb41954fc32 100644 --- a/arch/mips/dec/ioasic-irq.c +++ b/arch/mips/dec/ioasic-irq.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/dec/ioasic-irq.c - * * DEC I/O ASIC interrupts. * * Copyright (c) 2002, 2003 Maciej W. Rozycki diff --git a/arch/mips/dec/kn01-berr.c b/arch/mips/dec/kn01-berr.c index d3b8002bf1e..b0dc6d53edd 100644 --- a/arch/mips/dec/kn01-berr.c +++ b/arch/mips/dec/kn01-berr.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/dec/kn01-berr.c - * * Bus error event handling code for DECstation/DECsystem 3100 * and 2100 (KN01) systems equipped with parity error detection * logic. diff --git a/arch/mips/dec/kn02-irq.c b/arch/mips/dec/kn02-irq.c index 02439dc0ba8..ed90a8deabc 100644 --- a/arch/mips/dec/kn02-irq.c +++ b/arch/mips/dec/kn02-irq.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/dec/kn02-irq.c - * * DECstation 5000/200 (KN02) Control and Status Register * interrupts. * diff --git a/arch/mips/dec/kn02xa-berr.c b/arch/mips/dec/kn02xa-berr.c index 5f04545c360..07ca5405d48 100644 --- a/arch/mips/dec/kn02xa-berr.c +++ b/arch/mips/dec/kn02xa-berr.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/dec/kn02xa-berr.c - * * Bus error event handling code for 5000-series systems equipped * with parity error detection logic, i.e. DECstation/DECsystem * 5000/120, /125, /133 (KN02-BA), 5000/150 (KN04-BA) and Personal diff --git a/arch/mips/dec/prom/call_o32.S b/arch/mips/dec/prom/call_o32.S index e523454bda3..8c8498159e4 100644 --- a/arch/mips/dec/prom/call_o32.S +++ b/arch/mips/dec/prom/call_o32.S @@ -1,6 +1,4 @@ /* - * arch/mips/dec/prom/call_o32.S - * * O32 interface for the 64 (or N32) ABI. * * Copyright (C) 2002 Maciej W. Rozycki diff --git a/arch/mips/dec/prom/console.c b/arch/mips/dec/prom/console.c index 078e1a12421..caa6e047caf 100644 --- a/arch/mips/dec/prom/console.c +++ b/arch/mips/dec/prom/console.c @@ -1,6 +1,4 @@ /* - * arch/mips/dec/prom/console.c - * * DECstation PROM-based early console support. * * Copyright (C) 2004, 2007 Maciej W. Rozycki diff --git a/arch/mips/dec/time.c b/arch/mips/dec/time.c index 1359c03ded5..463136e6685 100644 --- a/arch/mips/dec/time.c +++ b/arch/mips/dec/time.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/dec/time.c - * * Copyright (C) 1991, 1992, 1995 Linus Torvalds * Copyright (C) 2000, 2003 Maciej W. Rozycki * diff --git a/arch/mips/emma/common/Makefile b/arch/mips/emma/common/Makefile index c392d28c1ef..f27d84d1904 100644 --- a/arch/mips/emma/common/Makefile +++ b/arch/mips/emma/common/Makefile @@ -1,7 +1,4 @@ # -# arch/mips/emma2rh/common/Makefile -# Makefile for the common code of NEC EMMA2RH based board. -# # Copyright (C) NEC Electronics Corporation 2005-2006 # # This program is free software; you can redistribute it and/or modify diff --git a/arch/mips/emma/common/prom.c b/arch/mips/emma/common/prom.c index 120f53fbdb4..708f0876140 100644 --- a/arch/mips/emma/common/prom.c +++ b/arch/mips/emma/common/prom.c @@ -1,7 +1,4 @@ /* - * arch/mips/emma2rh/common/prom.c - * This file is prom file. - * * Copyright (C) NEC Electronics Corporation 2004-2006 * * This file is based on the arch/mips/ddb5xxx/common/prom.c diff --git a/arch/mips/emma/markeins/Makefile b/arch/mips/emma/markeins/Makefile index 16e0017ba91..f8ba2508fa2 100644 --- a/arch/mips/emma/markeins/Makefile +++ b/arch/mips/emma/markeins/Makefile @@ -1,7 +1,4 @@ # -# arch/mips/emma2rh/markeins/Makefile -# Makefile for the common code of NEC EMMA2RH based board. -# # Copyright (C) NEC Electronics Corporation 2005-2006 # # This program is free software; you can redistribute it and/or modify diff --git a/arch/mips/emma/markeins/irq.c b/arch/mips/emma/markeins/irq.c index 43828ae796e..9504b7ee0b7 100644 --- a/arch/mips/emma/markeins/irq.c +++ b/arch/mips/emma/markeins/irq.c @@ -1,7 +1,4 @@ /* - * arch/mips/emma2rh/markeins/irq.c - * This file defines the irq handler for EMMA2RH. - * * Copyright (C) NEC Electronics Corporation 2004-2006 * * This file is based on the arch/mips/ddb5xxx/ddb5477/irq.c diff --git a/arch/mips/emma/markeins/led.c b/arch/mips/emma/markeins/led.c index 377a181b656..49755896857 100644 --- a/arch/mips/emma/markeins/led.c +++ b/arch/mips/emma/markeins/led.c @@ -1,7 +1,4 @@ /* - * arch/mips/emma2rh/markeins/led.c - * This file defines the led display for Mark-eins. - * * Copyright (C) NEC Electronics Corporation 2004-2006 * * This program is free software; you can redistribute it and/or modify diff --git a/arch/mips/emma/markeins/platform.c b/arch/mips/emma/markeins/platform.c index 80ae12ef87d..b05b08b92a3 100644 --- a/arch/mips/emma/markeins/platform.c +++ b/arch/mips/emma/markeins/platform.c @@ -1,7 +1,4 @@ /* - * arch/mips/emma2rh/markeins/platofrm.c - * This file sets up platform devices for EMMA2RH Mark-eins. - * * Copyright(C) MontaVista Software Inc, 2006 * * Author: dmitry pervushin diff --git a/arch/mips/emma/markeins/setup.c b/arch/mips/emma/markeins/setup.c index 67f45650008..335dc8c1a1b 100644 --- a/arch/mips/emma/markeins/setup.c +++ b/arch/mips/emma/markeins/setup.c @@ -1,7 +1,4 @@ /* - * arch/mips/emma2rh/markeins/setup.c - * This file is setup for EMMA2RH Mark-eins. - * * Copyright (C) NEC Electronics Corporation 2004-2006 * * This file is based on the arch/mips/ddb5xxx/ddb5477/setup.c. diff --git a/arch/mips/fw/lib/call_o32.S b/arch/mips/fw/lib/call_o32.S index bdf7d1d4081..e0a68713b3c 100644 --- a/arch/mips/fw/lib/call_o32.S +++ b/arch/mips/fw/lib/call_o32.S @@ -1,6 +1,4 @@ /* - * arch/mips/dec/prom/call_o32.S - * * O32 interface for the 64 (or N32) ABI. * * Copyright (C) 2002 Maciej W. Rozycki diff --git a/arch/mips/include/asm/emma/emma2rh.h b/arch/mips/include/asm/emma/emma2rh.h index 30aea91de62..2afb2fe11b3 100644 --- a/arch/mips/include/asm/emma/emma2rh.h +++ b/arch/mips/include/asm/emma/emma2rh.h @@ -1,7 +1,4 @@ /* - * arch/mips/include/asm/emma/emma2rh.h - * This file is EMMA2RH common header. - * * Copyright (C) NEC Electronics Corporation 2005-2006 * * This file based on include/asm-mips/ddb5xxx/ddb5xxx.h diff --git a/arch/mips/include/asm/emma/markeins.h b/arch/mips/include/asm/emma/markeins.h index 973b0628490..2618bf23024 100644 --- a/arch/mips/include/asm/emma/markeins.h +++ b/arch/mips/include/asm/emma/markeins.h @@ -1,7 +1,4 @@ /* - * include/asm-mips/emma2rh/markeins.h - * This file is EMMA2RH board depended header. - * * Copyright (C) NEC Electronics Corporation 2005-2006 * * This file based on include/asm-mips/ddb5xxx/ddb5xxx.h diff --git a/arch/mips/kernel/irq_txx9.c b/arch/mips/kernel/irq_txx9.c index a4d1462c27f..9b78029bea7 100644 --- a/arch/mips/kernel/irq_txx9.c +++ b/arch/mips/kernel/irq_txx9.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/kernel/irq_txx9.c - * * Based on linux/arch/mips/jmr3927/rbhma3100/irq.c, * linux/arch/mips/tx4927/common/tx4927_irq.c, * linux/arch/mips/tx4938/common/irq.c diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c index e0a4ac18fa0..26109c4d517 100644 --- a/arch/mips/kernel/proc.c +++ b/arch/mips/kernel/proc.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/kernel/proc.c - * * Copyright (C) 1995, 1996, 2001 Ralf Baechle * Copyright (C) 2001, 2004 MIPS Technologies, Inc. * Copyright (C) 2004 Maciej W. Rozycki diff --git a/arch/mips/kernel/stacktrace.c b/arch/mips/kernel/stacktrace.c index 58f5cd76c8c..d52ff77baf3 100644 --- a/arch/mips/kernel/stacktrace.c +++ b/arch/mips/kernel/stacktrace.c @@ -1,6 +1,4 @@ /* - * arch/mips/kernel/stacktrace.c - * * Stack trace management functions * * Copyright (C) 2006 Atsushi Nemoto diff --git a/arch/mips/mm/extable.c b/arch/mips/mm/extable.c index 297fb9f390d..9d25d2ba4b9 100644 --- a/arch/mips/mm/extable.c +++ b/arch/mips/mm/extable.c @@ -1,5 +1,9 @@ /* - * linux/arch/mips/mm/extable.c + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 1997, 99, 2001 - 2004 Ralf Baechle */ #include #include diff --git a/arch/mips/pci/fixup-emma2rh.c b/arch/mips/pci/fixup-emma2rh.c index fba5aad00d5..0d9ccf4dfc5 100644 --- a/arch/mips/pci/fixup-emma2rh.c +++ b/arch/mips/pci/fixup-emma2rh.c @@ -1,7 +1,4 @@ /* - * arch/mips/pci/fixup-emma2rh.c - * This file defines the PCI configration. - * * Copyright (C) NEC Electronics Corporation 2004-2006 * * This file is based on the arch/mips/ddb5xxx/ddb5477/pci.c diff --git a/arch/mips/pci/fixup-sb1250.c b/arch/mips/pci/fixup-sb1250.c index 0ad39e53f7b..f0bb9146e6c 100644 --- a/arch/mips/pci/fixup-sb1250.c +++ b/arch/mips/pci/fixup-sb1250.c @@ -1,6 +1,4 @@ /* - * arch/mips/pci/fixup-sb1250.c - * * Copyright (C) 2004, 2006 MIPS Technologies, Inc. All rights reserved. * Author: Maciej W. Rozycki * diff --git a/arch/mips/pci/ops-emma2rh.c b/arch/mips/pci/ops-emma2rh.c index 5947a70b0b7..710aef5c070 100644 --- a/arch/mips/pci/ops-emma2rh.c +++ b/arch/mips/pci/ops-emma2rh.c @@ -1,7 +1,4 @@ /* - * arch/mips/pci/ops-emma2rh.c - * This file defines the PCI operation for EMMA2RH. - * * Copyright (C) NEC Electronics Corporation 2004-2006 * * This file is based on the arch/mips/pci/ops-vr41xx.c diff --git a/arch/mips/pci/pci-emma2rh.c b/arch/mips/pci/pci-emma2rh.c index 2df4190232c..773e34ff4d1 100644 --- a/arch/mips/pci/pci-emma2rh.c +++ b/arch/mips/pci/pci-emma2rh.c @@ -1,7 +1,4 @@ /* - * arch/mips/pci/pci-emma2rh.c - * This file defines the PCI configration. - * * Copyright (C) NEC Electronics Corporation 2004-2006 * * This file is based on the arch/mips/ddb5xxx/ddb5477/pci.c diff --git a/arch/mips/pci/pci-tx4927.c b/arch/mips/pci/pci-tx4927.c index aaa90059679..a5807406a7f 100644 --- a/arch/mips/pci/pci-tx4927.c +++ b/arch/mips/pci/pci-tx4927.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/pci/pci-tx4927.c - * * Based on linux/arch/mips/txx9/rbtx4938/setup.c, * and RBTX49xx patch from CELF patch archive. * diff --git a/arch/mips/pci/pci-tx4938.c b/arch/mips/pci/pci-tx4938.c index 1ea257bc3b8..20e45f30b2e 100644 --- a/arch/mips/pci/pci-tx4938.c +++ b/arch/mips/pci/pci-tx4938.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/pci/pci-tx4938.c - * * Based on linux/arch/mips/txx9/rbtx4938/setup.c, * and RBTX49xx patch from CELF patch archive. * diff --git a/arch/mips/pci/pci-tx4939.c b/arch/mips/pci/pci-tx4939.c index 5fecf1cdc32..9ef840693ba 100644 --- a/arch/mips/pci/pci-tx4939.c +++ b/arch/mips/pci/pci-tx4939.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/pci/pci-tx4939.c - * * Based on linux/arch/mips/txx9/rbtx4939/setup.c, * and RBTX49xx patch from CELF patch archive. * diff --git a/arch/mips/pmc-sierra/msp71xx/gpio.c b/arch/mips/pmc-sierra/msp71xx/gpio.c index 69848c5813e..aaccbe52438 100644 --- a/arch/mips/pmc-sierra/msp71xx/gpio.c +++ b/arch/mips/pmc-sierra/msp71xx/gpio.c @@ -1,6 +1,4 @@ /* - * @file /arch/mips/pmc-sierra/msp71xx/gpio.c - * * Generic PMC MSP71xx GPIO handling. These base gpio are controlled by two * types of registers. The data register sets the output level when in output * mode and when in input mode will contain the value at the input. The config diff --git a/arch/mips/pmc-sierra/msp71xx/gpio_extended.c b/arch/mips/pmc-sierra/msp71xx/gpio_extended.c index fc6dbc6cf1c..2a99f360fae 100644 --- a/arch/mips/pmc-sierra/msp71xx/gpio_extended.c +++ b/arch/mips/pmc-sierra/msp71xx/gpio_extended.c @@ -1,6 +1,4 @@ /* - * @file /arch/mips/pmc-sierra/msp71xx/gpio_extended.c - * * Generic PMC MSP71xx EXTENDED (EXD) GPIO handling. The extended gpio is * a set of hardware registers that have no need for explicit locking as * it is handled by unique method of writing individual set/clr bits. diff --git a/arch/mips/pmc-sierra/yosemite/atmel_read_eeprom.c b/arch/mips/pmc-sierra/yosemite/atmel_read_eeprom.c index caf5e9a0acc..fc990cb3194 100644 --- a/arch/mips/pmc-sierra/yosemite/atmel_read_eeprom.c +++ b/arch/mips/pmc-sierra/yosemite/atmel_read_eeprom.c @@ -1,6 +1,4 @@ /* - * arch/mips/pmc-sierra/yosemite/atmel_read_eeprom.c - * * Copyright (C) 2003 PMC-Sierra Inc. * Author: Manish Lachwani (lachwani@pmc-sierra.com) * diff --git a/arch/mips/sibyte/swarm/swarm-i2c.c b/arch/mips/sibyte/swarm/swarm-i2c.c index 4282ac9d01d..062505054d4 100644 --- a/arch/mips/sibyte/swarm/swarm-i2c.c +++ b/arch/mips/sibyte/swarm/swarm-i2c.c @@ -1,6 +1,4 @@ /* - * arch/mips/sibyte/swarm/swarm-i2c.c - * * Broadcom BCM91250A (SWARM), etc. I2C platform setup. * * Copyright (c) 2008 Maciej W. Rozycki diff --git a/arch/mips/txx9/generic/mem_tx4927.c b/arch/mips/txx9/generic/mem_tx4927.c index ef6ea6e9787..70f9626f822 100644 --- a/arch/mips/txx9/generic/mem_tx4927.c +++ b/arch/mips/txx9/generic/mem_tx4927.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/txx9/generic/mem_tx4927.c - * * common tx4927 memory interface * * Author: MontaVista Software, Inc. diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c index 3b7d77d61ce..a205e2ba8e7 100644 --- a/arch/mips/txx9/generic/setup.c +++ b/arch/mips/txx9/generic/setup.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/txx9/generic/setup.c - * * Based on linux/arch/mips/txx9/rbtx4938/setup.c, * and RBTX49xx patch from CELF patch archive. * -- cgit v1.2.3 From a887b4dada2f23b2ff2aa725e0509c92dc652597 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Sat, 4 Jul 2009 01:33:09 +0900 Subject: MIPS: Drop mmap_sem in pagefault oom path Fix the pagefault oom path which does not drop mm->mmap_sem. This was introduced by commit c7c1e3846bac1e4b8a8941f6a194812e28b0a519 Signed-off-by: Akinobu Mita Signed-off-by: Ralf Baechle --- arch/mips/mm/fault.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c index 6751ce9ede9..f956ecbb813 100644 --- a/arch/mips/mm/fault.c +++ b/arch/mips/mm/fault.c @@ -171,6 +171,7 @@ out_of_memory: * We ran out of memory, call the OOM killer, and return the userspace * (which will retry the fault, or kill us if we got oom-killed). */ + up_read(&mm->mmap_sem); pagefault_out_of_memory(); return; -- cgit v1.2.3 From 7d35cdc07dd26eb6667f66f8e2f43f833a926ecf Mon Sep 17 00:00:00 2001 From: Alexander Clouter Date: Sun, 5 Jul 2009 12:00:55 +0100 Subject: MIPS: Fix compile for !CONFIG_SMP Commit fc03bc1715ca0ad4ccfe97aab16bcc9e7129c1a4 breaks compiling MIPS with SMP disabled. This patch fixes that. Signed-off-by: Alexander Clouter Signed-off-by: Ralf Baechle --- arch/mips/include/asm/gic.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/include/asm/gic.h b/arch/mips/include/asm/gic.h index 10292e37c1f..a8f57341f12 100644 --- a/arch/mips/include/asm/gic.h +++ b/arch/mips/include/asm/gic.h @@ -20,7 +20,7 @@ #define GIC_TRIG_EDGE 1 #define GIC_TRIG_LEVEL 0 -#if CONFIG_SMP +#ifdef CONFIG_SMP #define GIC_NUM_INTRS (24 + NR_CPUS * 2) #else #define GIC_NUM_INTRS 32 -- cgit v1.2.3 From 78fe01a5a80da4621321a1dc199c3a0875e2fbb0 Mon Sep 17 00:00:00 2001 From: Yoichi Yuasa Date: Wed, 8 Jul 2009 15:08:19 +0900 Subject: MIPS: MIPSsim: Fix unbalance brace in mipssim get_c0_compare_int() cc1: warnings being treated as errors arch/mips/mipssim/sim_time.c: In function 'get_c0_compare_int': arch/mips/mipssim/sim_time.c:103: warning: ISO C90 forbids mixed declarations and code arch/mips/mipssim/sim_time.c:116: error: expected declaration or statement at end of input make[1]: *** [arch/mips/mipssim/sim_time.o] Error 1 Signed-off-by: Yoichi Yuasa Signed-off-by: Ralf Baechle --- arch/mips/mipssim/sim_time.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/mips/mipssim/sim_time.c b/arch/mips/mipssim/sim_time.c index 0cea932f124..5492c42f765 100644 --- a/arch/mips/mipssim/sim_time.c +++ b/arch/mips/mipssim/sim_time.c @@ -89,13 +89,13 @@ unsigned __cpuinit get_c0_compare_int(void) if (cpu_has_veic) { set_vi_handler(MSC01E_INT_CPUCTR, mips_timer_dispatch); mips_cpu_timer_irq = MSC01E_INT_BASE + MSC01E_INT_CPUCTR; - } else { -#endif - { - if (cpu_has_vint) - set_vi_handler(cp0_compare_irq, mips_timer_dispatch); - mips_cpu_timer_irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq; + + return mips_cpu_timer_irq; } +#endif + if (cpu_has_vint) + set_vi_handler(cp0_compare_irq, mips_timer_dispatch); + mips_cpu_timer_irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq; return mips_cpu_timer_irq; } -- cgit v1.2.3 From 1de010a2702eb21d90883b83bf8c737d5e69d234 Mon Sep 17 00:00:00 2001 From: Huang Weiyi Date: Thu, 9 Jul 2009 06:14:37 +0800 Subject: MIPS: AR7: Remove unused inclusions of . Signed-off-by: Huang Weiyi Signed-off-by: Ralf Baechle --- arch/mips/ar7/platform.c | 1 - arch/mips/ar7/setup.c | 1 - 2 files changed, 2 deletions(-) diff --git a/arch/mips/ar7/platform.c b/arch/mips/ar7/platform.c index 54224496178..c4d71fb18de 100644 --- a/arch/mips/ar7/platform.c +++ b/arch/mips/ar7/platform.c @@ -28,7 +28,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/mips/ar7/setup.c b/arch/mips/ar7/setup.c index 6ebb5f16d96..39f6b5b9646 100644 --- a/arch/mips/ar7/setup.c +++ b/arch/mips/ar7/setup.c @@ -15,7 +15,6 @@ * with this program; if not, write to the Free Software Foundation, Inc., * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. */ -#include #include #include #include -- cgit v1.2.3 From 484889fc85a223ef56edc31828b86751b2296b7c Mon Sep 17 00:00:00 2001 From: David Daney Date: Wed, 8 Jul 2009 10:07:50 -0700 Subject: MIPS: Avoid clobbering struct pt_regs in kthreads The resume() implementation octeon_switch.S examines the saved cp0_status register. We were clobbering the entire pt_regs structure in kernel threads leading to random crashes. When switching away from a kernel thread, the saved cp0_status is examined and if bit 30 is set it is cleared and the CP2 state saved into the pt_regs structure. Since the kernel thread stack overlaid the pt_regs structure this resulted in a corrupt stack. When the kthread with the corrupt stack was resumed, it could crash if it used any of the data in the stack that was clobbered. We fix it by moving the kernel thread stack down so it doesn't overlay pt_regs. Signed-off-by: David Daney Signed-off-by: Ralf Baechle --- arch/mips/include/asm/processor.h | 5 +++-- arch/mips/kernel/head.S | 3 ++- arch/mips/kernel/process.c | 4 +++- 3 files changed, 8 insertions(+), 4 deletions(-) diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h index 0f926aa0cb4..087a8884ef0 100644 --- a/arch/mips/include/asm/processor.h +++ b/arch/mips/include/asm/processor.h @@ -311,8 +311,9 @@ extern void start_thread(struct pt_regs * regs, unsigned long pc, unsigned long unsigned long get_wchan(struct task_struct *p); -#define __KSTK_TOS(tsk) ((unsigned long)task_stack_page(tsk) + THREAD_SIZE - 32) -#define task_pt_regs(tsk) ((struct pt_regs *)__KSTK_TOS(tsk) - 1) +#define __KSTK_TOS(tsk) ((unsigned long)task_stack_page(tsk) + \ + THREAD_SIZE - 32 - sizeof(struct pt_regs)) +#define task_pt_regs(tsk) ((struct pt_regs *)__KSTK_TOS(tsk)) #define KSTK_EIP(tsk) (task_pt_regs(tsk)->cp0_epc) #define KSTK_ESP(tsk) (task_pt_regs(tsk)->regs[29]) #define KSTK_STATUS(tsk) (task_pt_regs(tsk)->cp0_status) diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S index 492a0a8d70f..531ce7b1612 100644 --- a/arch/mips/kernel/head.S +++ b/arch/mips/kernel/head.S @@ -188,7 +188,8 @@ NESTED(kernel_entry, 16, sp) # kernel entry point MTC0 zero, CP0_CONTEXT # clear context register PTR_LA $28, init_thread_union - PTR_LI sp, _THREAD_SIZE - 32 + /* Set the SP after an empty pt_regs. */ + PTR_LI sp, _THREAD_SIZE - 32 - PT_SIZE PTR_ADDU sp, $28 set_saved_sp sp, t0, t1 PTR_SUBU sp, 4 * SZREG # init stack pointer diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index c09d681b718..f3d73e1831c 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c @@ -115,7 +115,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, { struct thread_info *ti = task_thread_info(p); struct pt_regs *childregs; - long childksp; + unsigned long childksp; p->set_child_tid = p->clear_child_tid = NULL; childksp = (unsigned long)task_stack_page(p) + THREAD_SIZE - 32; @@ -132,6 +132,8 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, /* set up new TSS. */ childregs = (struct pt_regs *) childksp - 1; + /* Put the stack after the struct pt_regs. */ + childksp = (unsigned long) childregs; *childregs = *regs; childregs->regs[7] = 0; /* Clear error flag */ -- cgit v1.2.3 From 008ee96f1204225503934cb57ac38c49f519c7ab Mon Sep 17 00:00:00 2001 From: Raghu Gandham Date: Wed, 8 Jul 2009 17:00:44 -0700 Subject: [PATCH] MIPS: SMTC: Fix compile error Commit fc03bc1715ca0ad4ccfe97aab16bcc9e7129c1a4 breaks when SMTC support is enabled on Malta. Signed-off-by: Raghu Gandham Signed-off-by: Ralf Baechle --- arch/mips/mti-malta/malta-int.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c index a8756f82c31..3e0a9b35ba5 100644 --- a/arch/mips/mti-malta/malta-int.c +++ b/arch/mips/mti-malta/malta-int.c @@ -331,6 +331,7 @@ static struct irqaction irq_call = { .flags = IRQF_DISABLED|IRQF_PERCPU, .name = "IPI_call" }; +#endif /* CONFIG_MIPS_MT_SMP */ static int gic_resched_int_base; static int gic_call_int_base; @@ -346,7 +347,6 @@ unsigned int plat_ipi_resched_int_xlate(unsigned int cpu) { return GIC_RESCHED_INT(cpu); } -#endif /* CONFIG_MIPS_MT_SMP */ static struct irqaction i8259irq = { .handler = no_action, -- cgit v1.2.3 From d8e5f9fe5dab0e07985f2456cb6cc57788f53131 Mon Sep 17 00:00:00 2001 From: Kurt Martin Date: Wed, 8 Jul 2009 19:22:35 -0700 Subject: MIPS: SMTC: Move cross VPE writes to after a TC is assigned to VPE. Signed-off-by: Chris Dearman Signed-off-by: Raghu Gandham Signed-off-by: Ralf Baechle --- arch/mips/kernel/smtc.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c index 8a0626cbb10..c16bb6d6c25 100644 --- a/arch/mips/kernel/smtc.c +++ b/arch/mips/kernel/smtc.c @@ -465,11 +465,8 @@ void smtc_prepare_cpus(int cpus) smtc_configure_tlb(); for (tc = 0, vpe = 0 ; (vpe < nvpe) && (tc < ntc) ; vpe++) { - /* - * Set the MVP bits. - */ - settc(tc); - write_vpe_c0_vpeconf0(read_vpe_c0_vpeconf0() | VPECONF0_MVP); + if (tcpervpe[vpe] == 0) + continue; if (vpe != 0) printk(", "); printk("VPE %d: TC", vpe); @@ -487,6 +484,12 @@ void smtc_prepare_cpus(int cpus) tc++; } if (vpe != 0) { + /* + * Allow this VPE to control others. + */ + write_vpe_c0_vpeconf0(read_vpe_c0_vpeconf0() | + VPECONF0_MVP); + /* * Clear any stale software interrupts from VPE's Cause */ -- cgit v1.2.3 From 0e66fff883ef1b6e4c5031e8add8827cd0e2a195 Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Mon, 13 Jul 2009 11:14:24 +0200 Subject: MIPS: Fix loading of modules with unresolved weak symbols Loading of modules with unresolved weak symbols fails on MIPS since '88173507e4fc1e7ecd111b0565e8cba0cb7dae6d'. Modules: handle symbols that have a zero value The module subsystem cannot handle symbols that are zero. If symbols are present that have a zero value then the module resolver prints out a message that these symbols are unresolved. We have to use IS_ERR_VALUE() to check that a symbol has been resolved or not. Signed-off-by: Gabor Juhos Signed-off-by: Ralf Baechle --- arch/mips/kernel/module.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c index 3e9100dcc12..e465851a616 100644 --- a/arch/mips/kernel/module.c +++ b/arch/mips/kernel/module.c @@ -301,7 +301,7 @@ int apply_relocate(Elf_Shdr *sechdrs, const char *strtab, /* This is the symbol it is referring to */ sym = (Elf_Sym *)sechdrs[symindex].sh_addr + ELF_MIPS_R_SYM(rel[i]); - if (!sym->st_value) { + if (IS_ERR_VALUE(sym->st_value)) { /* Ignore unresolved weak symbol */ if (ELF_ST_BIND(sym->st_info) == STB_WEAK) continue; @@ -341,7 +341,7 @@ int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab, /* This is the symbol it is referring to */ sym = (Elf_Sym *)sechdrs[symindex].sh_addr + ELF_MIPS_R_SYM(rel[i]); - if (!sym->st_value) { + if (IS_ERR_VALUE(sym->st_value)) { /* Ignore unresolved weak symbol */ if (ELF_ST_BIND(sym->st_info) == STB_WEAK) continue; -- cgit v1.2.3 From 4824f20c8b3adcbc5067c1bdd88408ee68da6bb2 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Mon, 27 Apr 2009 16:59:48 +0200 Subject: MIPS: MSP71xx: fix build failures on msp_irq_slp.c Trying to build MSP4200 VoIP defconfig also fails on msp_irq_slp.c with a non-existing reference to mask_slp_irq, which is in turn mask_msp_slp_irq. Passed that, we will also miss a comma when calling set_irq_chip_and_handler. This patch fixes both issues. Signed-off-by: Florian Fainelli Acked-by: Shane McDonald Signed-off-by: Ralf Baechle --- arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c b/arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c index f5f1b8d2bb9..66f6f8505e7 100644 --- a/arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c +++ b/arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c @@ -45,7 +45,7 @@ static inline void mask_msp_slp_irq(unsigned int irq) */ static inline void ack_msp_slp_irq(unsigned int irq) { - mask_slp_irq(irq); + mask_msp_slp_irq(irq); /* * only really necessary for 18, 16-14 and sometimes 3:0 (since @@ -79,7 +79,7 @@ void __init msp_slp_irq_init(void) /* initialize all the IRQ descriptors */ for (i = MSP_SLP_INTBASE; i < MSP_PER_INTBASE + 32; i++) - set_irq_chip_and_handler(i, &msp_slp_irq_controller + set_irq_chip_and_handler(i, &msp_slp_irq_controller, handle_level_irq); } -- cgit v1.2.3 From 6577890fd68c2671850214663dd9ae97feacbc47 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Mon, 27 Apr 2009 16:47:23 +0200 Subject: MIPS: MSPxxxx: define MIPS34K_MISSED_ITLB_WAR for other PMC-Sierra SoC Trying to build a PMC-Sierra MSP4200 VoIP gateway defconfig will not work since MIPS34K_MISSED_ITLB_WAR is not defined for all boards supported within pmc-serria/msp71xx. This patch defines MIPS34K_MISSED_ITLB_WAR to prevent such build failures: CHK include/linux/version.h CHK include/linux/utsrelease.h SYMLINK include/asm -> include/asm-mips CC arch/mips/kernel/asm-offsets.s In file included fromlinux-msp71xx/linux-2.6.29/arch/mips/include/asm/bitops.h:24, from include/linux/bitops.h:17, from include/linux/kernel.h:15, from include/linux/sched.h:52, from arch/mips/kernel/asm-offsets.c:13: linux-msp71xx/linux-2.6.29/arch/mips/include/asm/war.h:241:2: error: #error Check setting of MIPS34K_MISSED_ITLB_WAR for your platform This fixes a compile error when building for the MSP4200 boards. Identical patches to fix this were send by Florian Fainelli Shane McDonald Signed-off-by: Florian Fainelli Signed-off-by: Ralf Baechle --- arch/mips/include/asm/pmc-sierra/msp71xx/war.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/mips/include/asm/pmc-sierra/msp71xx/war.h b/arch/mips/include/asm/pmc-sierra/msp71xx/war.h index 0bf48fc1892..9e2ee429c52 100644 --- a/arch/mips/include/asm/pmc-sierra/msp71xx/war.h +++ b/arch/mips/include/asm/pmc-sierra/msp71xx/war.h @@ -23,6 +23,8 @@ #if defined(CONFIG_PMC_MSP7120_EVAL) || defined(CONFIG_PMC_MSP7120_GW) || \ defined(CONFIG_PMC_MSP7120_FPGA) #define MIPS34K_MISSED_ITLB_WAR 1 +#else +#define MIPS34K_MISSED_ITLB_WAR 0 #endif #endif /* __ASM_MIPS_PMC_SIERRA_WAR_H */ -- cgit v1.2.3 From 0ca71737fee65521ede964afbd2d5484976ed0ed Mon Sep 17 00:00:00 2001 From: Shane McDonald Date: Sun, 12 Jul 2009 10:42:06 -0600 Subject: MIPS: Simplify and correct interrupt handling for MSP4200 The current interrupt handling code for the MSP4200 always masks an interrupt before acknowledging it. This is not required, as that will be handled by the level interrupt handler. This change simplifies the MSP4200 code to remove the masking in the ack routine, and makes sure that the minimum required operation is performed for masking and acking, rather than always both masking and acking the interrupt. Signed-off-by: Shane McDonald Signed-off-by: Ralf Baechle --- arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c b/arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c index 66f6f8505e7..61f39023234 100644 --- a/arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c +++ b/arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c @@ -45,13 +45,6 @@ static inline void mask_msp_slp_irq(unsigned int irq) */ static inline void ack_msp_slp_irq(unsigned int irq) { - mask_msp_slp_irq(irq); - - /* - * only really necessary for 18, 16-14 and sometimes 3:0 (since - * these can be edge sensitive) but it doesn't hurt for the others. - */ - /* check for PER interrupt range */ if (irq < MSP_PER_INTBASE) *SLP_INT_STS_REG = (1 << (irq - MSP_SLP_INTBASE)); @@ -62,8 +55,7 @@ static inline void ack_msp_slp_irq(unsigned int irq) static struct irq_chip msp_slp_irq_controller = { .name = "MSP_SLP", .ack = ack_msp_slp_irq, - .mask = ack_msp_slp_irq, - .mask_ack = ack_msp_slp_irq, + .mask = mask_msp_slp_irq, .unmask = unmask_msp_slp_irq, }; -- cgit v1.2.3 From 3e6e92183118d26d856e8efb549987164d1b49b4 Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto Date: Wed, 15 Jul 2009 22:03:56 +0900 Subject: MIPS: RBTX4939: Fix IOC pin-enable register updating The rbtx4939_update_ioc_pen() expects txx9_ce_res[] already initialized. Call it after tx4939_setup(). Signed-off-by: Atsushi Nemoto Signed-off-by: Ralf Baechle --- arch/mips/txx9/rbtx4939/setup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/txx9/rbtx4939/setup.c b/arch/mips/txx9/rbtx4939/setup.c index c033ffe71cd..b0c241ecf60 100644 --- a/arch/mips/txx9/rbtx4939/setup.c +++ b/arch/mips/txx9/rbtx4939/setup.c @@ -512,10 +512,10 @@ static void __init rbtx4939_setup(void) rbtx4939_ebusc_setup(); /* always enable ATA0 */ txx9_set64(&tx4939_ccfgptr->pcfg, TX4939_PCFG_ATA0MODE); - rbtx4939_update_ioc_pen(); if (txx9_master_clock == 0) txx9_master_clock = 20000000; tx4939_setup(); + rbtx4939_update_ioc_pen(); #ifdef HAVE_RBTX4939_IOSWAB ioswabw = rbtx4939_ioswabw; __mem_ioswabw = rbtx4939_mem_ioswabw; -- cgit v1.2.3 From 838c05705ef8c110037a713526bb18762db0a241 Mon Sep 17 00:00:00 2001 From: David Daney Date: Tue, 14 Jul 2009 18:16:50 -0700 Subject: MIPS: Octeon PCIe: Make hardware and software bus numbers match. Some SiliconImage PCIe SATA controlers are not detected when the bus numbers differ. Signed-off-by: David Daney Signed-off-by: Ralf Baechle --- arch/mips/pci/pcie-octeon.c | 31 +++++++++++++++++-------------- 1 file changed, 17 insertions(+), 14 deletions(-) diff --git a/arch/mips/pci/pcie-octeon.c b/arch/mips/pci/pcie-octeon.c index 75262247f3e..6aa5c542d52 100644 --- a/arch/mips/pci/pcie-octeon.c +++ b/arch/mips/pci/pcie-octeon.c @@ -1040,19 +1040,29 @@ static inline int octeon_pcie_read_config(int pcie_port, struct pci_bus *bus, int bus_number = bus->number; /* - * We need to force the bus number to be zero on the root - * bus. Linux numbers the 2nd root bus to start after all - * buses on root 0. + * For the top level bus make sure our hardware bus number + * matches the software one. */ - if (bus->parent == NULL) - bus_number = 0; + if (bus->parent == NULL) { + union cvmx_pciercx_cfg006 pciercx_cfg006; + pciercx_cfg006.u32 = cvmx_pcie_cfgx_read(pcie_port, + CVMX_PCIERCX_CFG006(pcie_port)); + if (pciercx_cfg006.s.pbnum != bus_number) { + pciercx_cfg006.s.pbnum = bus_number; + pciercx_cfg006.s.sbnum = bus_number; + pciercx_cfg006.s.subbnum = bus_number; + cvmx_pcie_cfgx_write(pcie_port, + CVMX_PCIERCX_CFG006(pcie_port), + pciercx_cfg006.u32); + } + } /* * PCIe only has a single device connected to Octeon. It is * always device ID 0. Don't bother doing reads for other * device IDs on the first segment. */ - if ((bus_number == 0) && (devfn >> 3 != 0)) + if ((bus->parent == NULL) && (devfn >> 3 != 0)) return PCIBIOS_FUNC_NOT_SUPPORTED; /* @@ -1070,7 +1080,7 @@ static inline int octeon_pcie_read_config(int pcie_port, struct pci_bus *bus, * bridge only respondes to device ID 0, function * 0-1 */ - if ((bus_number == 0) && (devfn >= 2)) + if ((bus->parent == NULL) && (devfn >= 2)) return PCIBIOS_FUNC_NOT_SUPPORTED; /* * The PCI-X slots are device ID 2,3. Choose one of @@ -1167,13 +1177,6 @@ static inline int octeon_pcie_write_config(int pcie_port, struct pci_bus *bus, int size, u32 val) { int bus_number = bus->number; - /* - * We need to force the bus number to be zero on the root - * bus. Linux numbers the 2nd root bus to start after all - * busses on root 0. - */ - if (bus->parent == NULL) - bus_number = 0; switch (size) { case 4: -- cgit v1.2.3 From dd34b5a82feadfaee4f8dea83a694d9349f94a28 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Tue, 21 Jul 2009 12:38:10 +0200 Subject: MIPS: AR7: Fix build warning on memory.c This patch fixes the following build warning: arch/mips/ar7/memory.c: In function 'memsize': arch/mips/ar7/memory.c:55: warning: passing argument 1 of 'writel' makes integer from pointer without a cast Signed-off-by: Florian Fainelli Signed-off-by: Ralf Baechle --- arch/mips/ar7/memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/ar7/memory.c b/arch/mips/ar7/memory.c index 46fed44825a..696c723dc6d 100644 --- a/arch/mips/ar7/memory.c +++ b/arch/mips/ar7/memory.c @@ -52,7 +52,7 @@ static int __init memsize(void) size <<= 1; } while (size < (64 << 20)); - writel(tmpaddr, &addr); + writel((u32)tmpaddr, &addr); return size; } -- cgit v1.2.3 From ea85a0e4cc870d2bb92e3b2007007901209bb7de Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Wed, 29 Jul 2009 22:02:53 +0200 Subject: MIPS: Fix read buffer overflow Signed-off-by: Roel Kluin Signed-off-by: Ralf Baechle --- arch/mips/ar7/prom.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/ar7/prom.c b/arch/mips/ar7/prom.c index a320bceb2f9..5ad6f1db656 100644 --- a/arch/mips/ar7/prom.c +++ b/arch/mips/ar7/prom.c @@ -144,7 +144,7 @@ static char * __init lookup_psp_var_map(u8 num) { int i; - for (i = 0; i < sizeof(psp_var_map); i++) + for (i = 0; i < ARRAY_SIZE(psp_var_map); i++) if (psp_var_map[i].num == num) return psp_var_map[i].value; -- cgit v1.2.3 From 50ca961912be315035cb0f3508e35c974851da2a Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Fri, 24 Jul 2009 13:24:15 +0200 Subject: MIPS: AR7: Fix build failures when CONFIG_SERIAL_8250 is not enabled This patch fixes the following build failure when CONFIG_SERIAL_8250 is not enabled in the kernel configuration: arch/mips/ar7/built-in.o: In function 'ar7_register_devices': platform.c:(.init.text+0x61c): undefined reference to 'early_serial_setup' platform.c:(.init.text+0x61c): relocation truncated to fit: R_MIPS_26 against 'early_serial_setup' platform.c:(.init.text+0x68c): undefined reference to 'early_serial_setup' platform.c:(.init.text+0x68c): relocation truncated to fit: R_MIPS_26 against 'early_serial_setup' Signed-off-by: Florian Fainelli Signed-off-by: Ralf Baechle --- arch/mips/ar7/platform.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/mips/ar7/platform.c b/arch/mips/ar7/platform.c index c4d71fb18de..8ef8266e47f 100644 --- a/arch/mips/ar7/platform.c +++ b/arch/mips/ar7/platform.c @@ -480,6 +480,7 @@ static void __init detect_leds(void) static int __init ar7_register_devices(void) { int res; +#ifdef CONFIG_SERIAL_8250 static struct uart_port uart_port[2]; memset(uart_port, 0, sizeof(struct uart_port) * 2); @@ -511,7 +512,7 @@ static int __init ar7_register_devices(void) if (res) return res; } - +#endif /* CONFIG_SERIAL_8250 */ res = platform_device_register(&physmap_flash); if (res) return res; -- cgit v1.2.3 From 8e84c1480d2e7d98d487b567100717b9cc9dcfd7 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Fri, 24 Jul 2009 13:18:16 +0200 Subject: MIPS: AR7: Use DMA_BIT_MASK(nn) instead of deprecated DMA_nnBIT_MASK Signed-off-by: Florian Fainelli Signed-off-by: Ralf Baechle --- arch/mips/ar7/platform.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/mips/ar7/platform.c b/arch/mips/ar7/platform.c index 8ef8266e47f..2ecab615593 100644 --- a/arch/mips/ar7/platform.c +++ b/arch/mips/ar7/platform.c @@ -242,13 +242,13 @@ static struct platform_device physmap_flash = { .num_resources = 1, }; -static u64 cpmac_dma_mask = DMA_32BIT_MASK; +static u64 cpmac_dma_mask = DMA_BIT_MASK(32); static struct platform_device cpmac_low = { .id = 0, .name = "cpmac", .dev = { .dma_mask = &cpmac_dma_mask, - .coherent_dma_mask = DMA_32BIT_MASK, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &cpmac_low_data, }, .resource = cpmac_low_res, @@ -260,7 +260,7 @@ static struct platform_device cpmac_high = { .name = "cpmac", .dev = { .dma_mask = &cpmac_dma_mask, - .coherent_dma_mask = DMA_32BIT_MASK, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &cpmac_high_data, }, .resource = cpmac_high_res, -- cgit v1.2.3 From e5b3837a52c7fe5c7086590bed902f0fac5f9ec0 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Fri, 24 Jul 2009 13:18:42 +0200 Subject: MIPS: AR7: Remove unused tnetd7200_get_clock function Signed-off-by: Florian Fainelli Signed-off-by: Ralf Baechle --- arch/mips/ar7/clock.c | 13 ------------- 1 file changed, 13 deletions(-) diff --git a/arch/mips/ar7/clock.c b/arch/mips/ar7/clock.c index 27dc6663f2f..cc65c8eb391 100644 --- a/arch/mips/ar7/clock.c +++ b/arch/mips/ar7/clock.c @@ -264,19 +264,6 @@ static void __init tnetd7300_init_clocks(void) iounmap(bootcr); } -static int tnetd7200_get_clock(int base, struct tnetd7200_clock *clock, - u32 *bootcr, u32 bus_clock) -{ - int divisor = ((readl(&clock->prediv) & 0x1f) + 1) * - ((readl(&clock->postdiv) & 0x1f) + 1); - - if (*bootcr & BOOT_PLL_BYPASS) - return base / divisor; - - return base * ((readl(&clock->mul) & 0xf) + 1) / divisor; -} - - static void tnetd7200_set_clock(int base, struct tnetd7200_clock *clock, int prediv, int postdiv, int postdiv2, int mul, u32 frequency) { -- cgit v1.2.3 From 619e22632ea3110323b1851a7fecb52bf8505fd2 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Fri, 24 Jul 2009 13:19:10 +0200 Subject: MIPS: AR7: Override CFLAGS with -Werror Now that we have removed all warnings from the ar7 board code we can use -Werror like on other MIPS boards. Signed-off-by: Florian Fainelli Signed-off-by: Ralf Baechle --- arch/mips/ar7/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/mips/ar7/Makefile b/arch/mips/ar7/Makefile index 7435e44b396..26bc5da1899 100644 --- a/arch/mips/ar7/Makefile +++ b/arch/mips/ar7/Makefile @@ -8,3 +8,4 @@ obj-y := \ platform.o \ gpio.o \ clock.o +EXTRA_CFLAGS += -Werror -- cgit v1.2.3 From a1b021d3992d9be03b0abec1a7ed78e713b94206 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Sat, 1 Aug 2009 23:51:20 +0200 Subject: MIPS: MTX-1: Request button GPIO before setting its direction This patch fixes the following warning at boot time: WARNING: at drivers/gpio/gpiolib.c:83 0x8021d5e0() autorequest GPIO-207 Modules linked in: Call Trace:[<8011e0ec>] 0x8011e0ec [<80110a28>] 0x80110a28 [<80110a28>] 0x80110a28 [..snip..] The current code does not request the GPIO and attempts to set its direction, which is a violation of the GPIO API. This patch also unhardcode the GPIO we request and use the one we defined in the button driver. Signed-off-by: Florian Fainelli Signed-off-by: Ralf Baechle --- arch/mips/alchemy/mtx-1/platform.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/arch/mips/alchemy/mtx-1/platform.c b/arch/mips/alchemy/mtx-1/platform.c index 8b5914d1241..e30e42add69 100644 --- a/arch/mips/alchemy/mtx-1/platform.c +++ b/arch/mips/alchemy/mtx-1/platform.c @@ -1,7 +1,7 @@ /* * MTX-1 platform devices registration * - * Copyright (C) 2007, Florian Fainelli + * Copyright (C) 2007-2009, Florian Fainelli * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -142,7 +142,17 @@ static struct __initdata platform_device * mtx1_devs[] = { static int __init mtx1_register_devices(void) { - gpio_direction_input(207); + int rc; + + rc = gpio_request(mtx1_gpio_button[0].gpio, + mtx1_gpio_button[0].desc); + if (rc < 0) { + printk(KERN_INFO "mtx1: failed to request %d\n", + mtx1_gpio_button[0].gpio); + goto out; + } + gpio_direction_input(mtx1_gpio_button[0].gpio); +out: return platform_add_devices(mtx1_devs, ARRAY_SIZE(mtx1_devs)); } -- cgit v1.2.3 From 64f1815507f207ec54ee6b9ae69c48bd153e83b4 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sun, 2 Aug 2009 10:48:08 +0200 Subject: MIPS: Use DIV_ROUND_CLOSEST The kernel.h macro DIV_ROUND_CLOSEST performs the computation (x + d/2)/d but is perhaps more readable. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // @haskernel@ @@ #include @depends on haskernel@ expression x,__divisor; @@ - (((x) + ((__divisor) / 2)) / (__divisor)) + DIV_ROUND_CLOSEST(x,__divisor) // Signed-off-by: Julia Lawall Signed-off-by: Ralf Baechle --- arch/mips/nxp/pnx8550/common/time.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/nxp/pnx8550/common/time.c b/arch/mips/nxp/pnx8550/common/time.c index 8df43e9e4d9..18b19278487 100644 --- a/arch/mips/nxp/pnx8550/common/time.c +++ b/arch/mips/nxp/pnx8550/common/time.c @@ -138,7 +138,7 @@ __init void plat_time_init(void) * HZ timer interrupts per second. */ mips_hpt_frequency = 27UL * ((1000000UL * n)/(m * pow2p)); - cpj = (mips_hpt_frequency + HZ / 2) / HZ; + cpj = DIV_ROUND_CLOSEST(mips_hpt_frequency, HZ); write_c0_count(0); timer_ack(); -- cgit v1.2.3 From 3d4656d68bad84604f5b01f93e066cd02f77154b Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Fri, 31 Jul 2009 14:52:51 +0200 Subject: MIPS: Jazz: Fix read buffer overflow Check whether index is within bounds before testing the element. Signed-off-by: Roel Kluin Signed-off-by: Ralf Baechle --- arch/mips/jazz/jazzdma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/jazz/jazzdma.c b/arch/mips/jazz/jazzdma.c index f0fd636723b..0d64d0f4641 100644 --- a/arch/mips/jazz/jazzdma.c +++ b/arch/mips/jazz/jazzdma.c @@ -190,7 +190,7 @@ int vdma_free(unsigned long laddr) return -1; } - while (pgtbl[i].owner == laddr && i < VDMA_PGTBL_ENTRIES) { + while (i < VDMA_PGTBL_ENTRIES && pgtbl[i].owner == laddr) { pgtbl[i].owner = VDMA_PAGE_EMPTY; i++; } -- cgit v1.2.3 From 39b3d44624e9c54e7406274beaf569fe33af2b96 Mon Sep 17 00:00:00 2001 From: David Daney Date: Fri, 31 Jul 2009 14:30:07 -0700 Subject: MIPS: Octeon: Run IPI code with interrupts disabled. In mm/slab.c the function do_ccupdate_local requires that interrupts be disabled. If they are not, we panic with CONFIG_DEBUG_SLAB. So we disable interrupts while processing IPIs. Also these are not shared irqs, so get rid of the IRQF_SHARED flag. Signed-off-by: David Daney Signed-off-by: Ralf Baechle --- arch/mips/cavium-octeon/smp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/mips/cavium-octeon/smp.c b/arch/mips/cavium-octeon/smp.c index 0b891a9c625..32d51a31dc4 100644 --- a/arch/mips/cavium-octeon/smp.c +++ b/arch/mips/cavium-octeon/smp.c @@ -194,11 +194,11 @@ static void octeon_init_secondary(void) void octeon_prepare_cpus(unsigned int max_cpus) { cvmx_write_csr(CVMX_CIU_MBOX_CLRX(cvmx_get_core_num()), 0xffffffff); - if (request_irq(OCTEON_IRQ_MBOX0, mailbox_interrupt, IRQF_SHARED, + if (request_irq(OCTEON_IRQ_MBOX0, mailbox_interrupt, IRQF_DISABLED, "mailbox0", mailbox_interrupt)) { panic("Cannot request_irq(OCTEON_IRQ_MBOX0)\n"); } - if (request_irq(OCTEON_IRQ_MBOX1, mailbox_interrupt, IRQF_SHARED, + if (request_irq(OCTEON_IRQ_MBOX1, mailbox_interrupt, IRQF_DISABLED, "mailbox1", mailbox_interrupt)) { panic("Cannot request_irq(OCTEON_IRQ_MBOX1)\n"); } -- cgit v1.2.3 From 6f9fdeb6761a46ded6bf4b799993a3f235ab853d Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 3 Aug 2009 10:50:19 +0100 Subject: MIPS: Module: Make error messages unique. There were three different errors resulting in a "dangerous relocation" message. Add the relocation type to the messgages to make them more useful. Signed-off-by: Ralf Baechle --- arch/mips/kernel/module.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c index e465851a616..6f51dda87fc 100644 --- a/arch/mips/kernel/module.c +++ b/arch/mips/kernel/module.c @@ -98,7 +98,8 @@ static int apply_r_mips_32_rela(struct module *me, u32 *location, Elf_Addr v) static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v) { if (v % 4) { - printk(KERN_ERR "module %s: dangerous relocation\n", me->name); + pr_err("module %s: dangerous R_MIPS_26 REL relocation\n", + me->name); return -ENOEXEC; } @@ -118,7 +119,8 @@ static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v) static int apply_r_mips_26_rela(struct module *me, u32 *location, Elf_Addr v) { if (v % 4) { - printk(KERN_ERR "module %s: dangerous relocation\n", me->name); + pr_err("module %s: dangerous R_MIPS_26 RELArelocation\n", + me->name); return -ENOEXEC; } @@ -222,7 +224,7 @@ static int apply_r_mips_lo16_rel(struct module *me, u32 *location, Elf_Addr v) return 0; out_danger: - printk(KERN_ERR "module %s: dangerous " "relocation\n", me->name); + pr_err("module %s: dangerous R_MIPS_LO16 REL relocation\n", me->name); return -ENOEXEC; } -- cgit v1.2.3 From e2a9cf96a0af24f33206b4bb98cc3a12242260c1 Mon Sep 17 00:00:00 2001 From: Raghu Gandham Date: Fri, 10 Jul 2009 02:01:32 -0700 Subject: MIPS: VPE: Fix compiler warning. Signed-off-by: Raghu Gandham Signed-off-by: Ralf Baechle --- arch/mips/kernel/vpe.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c index 07b9ec2c6e3..3d4ef841d82 100644 --- a/arch/mips/kernel/vpe.c +++ b/arch/mips/kernel/vpe.c @@ -327,7 +327,8 @@ static void layout_sections(struct module *mod, const Elf_Ehdr * hdr, || (s->sh_flags & masks[m][1]) || s->sh_entsize != ~0UL) continue; - s->sh_entsize = get_offset(&mod->core_size, s); + s->sh_entsize = + get_offset((unsigned long *)&mod->core_size, s); } if (m == 0) -- cgit v1.2.3 From 477c4b07406357ad93d0e32788dbf3ee814eadaa Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 3 Aug 2009 12:26:40 +0100 Subject: MIPS: VPE: Free relocation chain on error. This may happen if a bad sequence of relocations is being encountered. Signed-off-by: Ralf Baechle --- arch/mips/kernel/vpe.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c index 3d4ef841d82..245b03e8808 100644 --- a/arch/mips/kernel/vpe.c +++ b/arch/mips/kernel/vpe.c @@ -462,16 +462,15 @@ static int apply_r_mips_lo16(struct module *me, uint32_t *location, { unsigned long insnlo = *location; Elf32_Addr val, vallo; + struct mips_hi16 *l, *next; /* Sign extend the addend we extract from the lo insn. */ vallo = ((insnlo & 0xffff) ^ 0x8000) - 0x8000; if (mips_hi16_list != NULL) { - struct mips_hi16 *l; l = mips_hi16_list; while (l != NULL) { - struct mips_hi16 *next; unsigned long insn; /* @@ -481,7 +480,7 @@ static int apply_r_mips_lo16(struct module *me, uint32_t *location, printk(KERN_DEBUG "VPE loader: " "apply_r_mips_lo16/hi16: \t" "inconsistent value information\n"); - return -ENOEXEC; + goto out_free; } /* @@ -519,6 +518,16 @@ static int apply_r_mips_lo16(struct module *me, uint32_t *location, *location = insnlo; return 0; + +out_free: + while (l != NULL) { + next = l->next; + kfree(l); + l = next; + } + mips_hi16_list = NULL; + + return -ENOEXEC; } static int (*reloc_handlers[]) (struct module *me, uint32_t *location, -- cgit v1.2.3 From f18b51cc1f97ca290256e8f94127f6856a42d605 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 3 Aug 2009 12:54:35 +0100 Subject: MIPS: VPE: Make various functions static. None of these is used outside the VPE loader. Signed-off-by: Ralf Baechle --- arch/mips/kernel/vpe.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c index 245b03e8808..6cbeb2a5452 100644 --- a/arch/mips/kernel/vpe.c +++ b/arch/mips/kernel/vpe.c @@ -155,10 +155,9 @@ struct { }; static void release_progmem(void *ptr); -extern void save_gp_address(unsigned int secbase, unsigned int rel); /* get the vpe associated with this minor */ -struct vpe *get_vpe(int minor) +static struct vpe *get_vpe(int minor) { struct vpe *v; @@ -174,7 +173,7 @@ struct vpe *get_vpe(int minor) } /* get the vpe associated with this minor */ -struct tc *get_tc(int index) +static struct tc *get_tc(int index) { struct tc *t; @@ -199,7 +198,7 @@ struct tc *get_tc_unused(void) } /* allocate a vpe and associate it with this minor (or index) */ -struct vpe *alloc_vpe(int minor) +static struct vpe *alloc_vpe(int minor) { struct vpe *v; @@ -216,7 +215,7 @@ struct vpe *alloc_vpe(int minor) } /* allocate a tc. At startup only tc0 is running, all other can be halted. */ -struct tc *alloc_tc(int index) +static struct tc *alloc_tc(int index) { struct tc *tc; @@ -232,7 +231,7 @@ out: } /* clean up and free everything */ -void release_vpe(struct vpe *v) +static void release_vpe(struct vpe *v) { list_del(&v->list); if (v->load_addr) @@ -240,7 +239,7 @@ void release_vpe(struct vpe *v) kfree(v); } -void dump_mtregs(void) +static void dump_mtregs(void) { unsigned long val; @@ -551,7 +550,7 @@ static char *rstrs[] = { [R_MIPS_PC16] = "MIPS_PC16" }; -int apply_relocations(Elf32_Shdr *sechdrs, +static int apply_relocations(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex, unsigned int relsec, @@ -596,7 +595,7 @@ int apply_relocations(Elf32_Shdr *sechdrs, return 0; } -void save_gp_address(unsigned int secbase, unsigned int rel) +static inline void save_gp_address(unsigned int secbase, unsigned int rel) { gp_addr = secbase + rel; gp_offs = gp_addr - (secbase & 0xffff0000); -- cgit v1.2.3 From 349c4229ed305146a558008d393c622d715cd11d Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 3 Aug 2009 12:56:39 +0100 Subject: MIPS: VPE: Fix bogus indentation. Signed-off-by: Ralf Baechle --- arch/mips/kernel/vpe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c index 6cbeb2a5452..e3687524fdb 100644 --- a/arch/mips/kernel/vpe.c +++ b/arch/mips/kernel/vpe.c @@ -73,7 +73,7 @@ static int major; static const int minor = 1; /* fixed for now */ #ifdef CONFIG_MIPS_APSP_KSPD - static struct kspd_notifications kspd_events; +static struct kspd_notifications kspd_events; static int kspd_events_reqd = 0; #endif -- cgit v1.2.3 From ce21f4e86f89d352efecd044958db1917033b49b Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 3 Aug 2009 12:57:52 +0100 Subject: MIPS: VPE: Delete unused function get_tc_unused(). Signed-off-by: Ralf Baechle --- arch/mips/kernel/vpe.c | 12 ------------ 1 file changed, 12 deletions(-) diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c index e3687524fdb..9a1ab7e87fd 100644 --- a/arch/mips/kernel/vpe.c +++ b/arch/mips/kernel/vpe.c @@ -185,18 +185,6 @@ static struct tc *get_tc(int index) return NULL; } -struct tc *get_tc_unused(void) -{ - struct tc *t; - - list_for_each_entry(t, &vpecontrol.tc_list, list) { - if (t->state == TC_STATE_UNUSED) - return t; - } - - return NULL; -} - /* allocate a vpe and associate it with this minor (or index) */ static struct vpe *alloc_vpe(int minor) { -- cgit v1.2.3 From 54822de7793bf9aa56d79cc173281cdb23b37f9f Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 3 Aug 2009 17:27:19 +0100 Subject: MIPS: Wire up accept4 syscall. Signed-off-by: Ralf Baechle --- arch/mips/include/asm/unistd.h | 15 +++++++++------ arch/mips/kernel/scall32-o32.S | 1 + arch/mips/kernel/scall64-64.S | 1 + arch/mips/kernel/scall64-n32.S | 1 + arch/mips/kernel/scall64-o32.S | 1 + 5 files changed, 13 insertions(+), 6 deletions(-) diff --git a/arch/mips/include/asm/unistd.h b/arch/mips/include/asm/unistd.h index b70c49fdda2..e753a777949 100644 --- a/arch/mips/include/asm/unistd.h +++ b/arch/mips/include/asm/unistd.h @@ -354,16 +354,17 @@ #define __NR_pwritev (__NR_Linux + 331) #define __NR_rt_tgsigqueueinfo (__NR_Linux + 332) #define __NR_perf_counter_open (__NR_Linux + 333) +#define __NR_accept4 (__NR_Linux + 334) /* * Offset of the last Linux o32 flavoured syscall */ -#define __NR_Linux_syscalls 333 +#define __NR_Linux_syscalls 334 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */ #define __NR_O32_Linux 4000 -#define __NR_O32_Linux_syscalls 333 +#define __NR_O32_Linux_syscalls 334 #if _MIPS_SIM == _MIPS_SIM_ABI64 @@ -664,16 +665,17 @@ #define __NR_pwritev (__NR_Linux + 290) #define __NR_rt_tgsigqueueinfo (__NR_Linux + 291) #define __NR_perf_counter_open (__NR_Linux + 292) +#define __NR_accept4 (__NR_Linux + 293) /* * Offset of the last Linux 64-bit flavoured syscall */ -#define __NR_Linux_syscalls 292 +#define __NR_Linux_syscalls 293 #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */ #define __NR_64_Linux 5000 -#define __NR_64_Linux_syscalls 292 +#define __NR_64_Linux_syscalls 293 #if _MIPS_SIM == _MIPS_SIM_NABI32 @@ -978,16 +980,17 @@ #define __NR_pwritev (__NR_Linux + 294) #define __NR_rt_tgsigqueueinfo (__NR_Linux + 295) #define __NR_perf_counter_open (__NR_Linux + 296) +#define __NR_accept4 (__NR_Linux + 297) /* * Offset of the last N32 flavoured syscall */ -#define __NR_Linux_syscalls 296 +#define __NR_Linux_syscalls 297 #endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */ #define __NR_N32_Linux 6000 -#define __NR_N32_Linux_syscalls 296 +#define __NR_N32_Linux_syscalls 297 #ifdef __KERNEL__ diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S index 20a86e08fd5..b5708212353 100644 --- a/arch/mips/kernel/scall32-o32.S +++ b/arch/mips/kernel/scall32-o32.S @@ -654,6 +654,7 @@ einval: li v0, -ENOSYS sys sys_pwritev 6 sys sys_rt_tgsigqueueinfo 4 sys sys_perf_counter_open 5 + sys sys_accept4 4 .endm /* We pre-compute the number of _instruction_ bytes needed to diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S index b046130d4c5..3d866f24e06 100644 --- a/arch/mips/kernel/scall64-64.S +++ b/arch/mips/kernel/scall64-64.S @@ -491,4 +491,5 @@ sys_call_table: PTR sys_pwritev /* 5390 */ PTR sys_rt_tgsigqueueinfo PTR sys_perf_counter_open + PTR sys_accept4 .size sys_call_table,.-sys_call_table diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index 15874f9812c..e855b118a07 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S @@ -417,4 +417,5 @@ EXPORT(sysn32_call_table) PTR sys_pwritev PTR compat_sys_rt_tgsigqueueinfo /* 5295 */ PTR sys_perf_counter_open + PTR sys_accept4 .size sysn32_call_table,.-sysn32_call_table diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index 781e0f1e953..0c49f1a660b 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -537,4 +537,5 @@ sys_call_table: PTR compat_sys_pwritev PTR compat_sys_rt_tgsigqueueinfo PTR sys_perf_counter_open + PTR sys_accept4 .size sys_call_table,.-sys_call_table -- cgit v1.2.3 From 8523acfe40efc1a8d3da8f473ca67cb195b06f0c Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Mon, 3 Aug 2009 09:25:45 +0200 Subject: x86: Fix CPA memtype reserving in the set_pages_array*() cases The code was incorrectly reserving memtypes using the page virtual address instead of the physical address. Furthermore, the code was not ignoring highmem pages as it ought to. ( upstream does not pass in highmem pages yet - but upcoming graphics code will do it and there's no reason to not handle this properly in the CPA APIs.) Fixes: http://bugzilla.kernel.org/show_bug.cgi?id=13884 Signed-off-by: Thomas Hellstrom Acked-by: Suresh Siddha Cc: Cc: dri-devel@lists.sourceforge.net Cc: venkatesh.pallipadi@intel.com LKML-Reference: <1249284345-7654-1-git-send-email-thellstrom@vmware.com> Signed-off-by: Ingo Molnar --- arch/x86/mm/pageattr.c | 30 +++++++++++++++++++++--------- 1 file changed, 21 insertions(+), 9 deletions(-) diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 895d90e1a81..7e600c1962d 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -591,9 +591,12 @@ static int __change_page_attr(struct cpa_data *cpa, int primary) unsigned int level; pte_t *kpte, old_pte; - if (cpa->flags & CPA_PAGES_ARRAY) - address = (unsigned long)page_address(cpa->pages[cpa->curpage]); - else if (cpa->flags & CPA_ARRAY) + if (cpa->flags & CPA_PAGES_ARRAY) { + struct page *page = cpa->pages[cpa->curpage]; + if (unlikely(PageHighMem(page))) + return 0; + address = (unsigned long)page_address(page); + } else if (cpa->flags & CPA_ARRAY) address = cpa->vaddr[cpa->curpage]; else address = *cpa->vaddr; @@ -697,9 +700,12 @@ static int cpa_process_alias(struct cpa_data *cpa) * No need to redo, when the primary call touched the direct * mapping already: */ - if (cpa->flags & CPA_PAGES_ARRAY) - vaddr = (unsigned long)page_address(cpa->pages[cpa->curpage]); - else if (cpa->flags & CPA_ARRAY) + if (cpa->flags & CPA_PAGES_ARRAY) { + struct page *page = cpa->pages[cpa->curpage]; + if (unlikely(PageHighMem(page))) + return 0; + vaddr = (unsigned long)page_address(page); + } else if (cpa->flags & CPA_ARRAY) vaddr = cpa->vaddr[cpa->curpage]; else vaddr = *cpa->vaddr; @@ -1122,7 +1128,9 @@ int set_pages_array_uc(struct page **pages, int addrinarray) int free_idx; for (i = 0; i < addrinarray; i++) { - start = (unsigned long)page_address(pages[i]); + if (PageHighMem(pages[i])) + continue; + start = page_to_pfn(pages[i]) << PAGE_SHIFT; end = start + PAGE_SIZE; if (reserve_memtype(start, end, _PAGE_CACHE_UC_MINUS, NULL)) goto err_out; @@ -1135,7 +1143,9 @@ int set_pages_array_uc(struct page **pages, int addrinarray) err_out: free_idx = i; for (i = 0; i < free_idx; i++) { - start = (unsigned long)page_address(pages[i]); + if (PageHighMem(pages[i])) + continue; + start = page_to_pfn(pages[i]) << PAGE_SHIFT; end = start + PAGE_SIZE; free_memtype(start, end); } @@ -1164,7 +1174,9 @@ int set_pages_array_wb(struct page **pages, int addrinarray) return retval; for (i = 0; i < addrinarray; i++) { - start = (unsigned long)page_address(pages[i]); + if (PageHighMem(pages[i])) + continue; + start = page_to_pfn(pages[i]) << PAGE_SHIFT; end = start + PAGE_SIZE; free_memtype(start, end); } -- cgit v1.2.3 From 6c6c51e4cc11a5456fb1172008f7c69d955af9f6 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Mon, 3 Aug 2009 22:47:32 +1000 Subject: x86: Add quirk to make Apple MacBook5,2 use reboot=pci The latest Apple MacBook (MacBook5,2) doesn't reboot successfully under Linux; neither the EFI reboot method nor the default method using the keyboard controller works (the system just hangs and doesn't reset). However, the method using the "PCI reset register" at 0xcf9 does work. This adds a quirk to detect this machine via DMI and force the reboot_type to BOOT_CF9. With this it reboots successfully without requiring a command-line option. Note that the EFI code forces reboot_type to BOOT_EFI when the machine is booted via EFI, but this overrides that since the core_initcall runs after the EFI initialization code. Signed-off-by: Paul Mackerras LKML-Reference: <19062.56420.501516.316181@cargo.ozlabs.ibm.com> Signed-off-by: H. Peter Anvin --- arch/x86/kernel/reboot.c | 34 +++++++++++++++++++++++++++++++++- 1 file changed, 33 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c index 508e982dd07..834c9da8bf9 100644 --- a/arch/x86/kernel/reboot.c +++ b/arch/x86/kernel/reboot.c @@ -3,6 +3,7 @@ #include #include #include +#include #include #include #include @@ -17,7 +18,6 @@ #include #ifdef CONFIG_X86_32 -# include # include # include #else @@ -404,6 +404,38 @@ EXPORT_SYMBOL(machine_real_restart); #endif /* CONFIG_X86_32 */ +/* + * Apple MacBook5,2 (2009 MacBook) needs reboot=p + */ +static int __init set_pci_reboot(const struct dmi_system_id *d) +{ + if (reboot_type != BOOT_CF9) { + reboot_type = BOOT_CF9; + printk(KERN_INFO "%s series board detected. " + "Selecting PCI-method for reboots.\n", d->ident); + } + return 0; +} + +static struct dmi_system_id __initdata pci_reboot_dmi_table[] = { + { /* Handle problems with rebooting on Apple MacBook5,2 */ + .callback = set_pci_reboot, + .ident = "Apple MacBook", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBook5,2"), + }, + }, + { } +}; + +static int __init pci_reboot_init(void) +{ + dmi_check_system(pci_reboot_dmi_table); + return 0; +} +core_initcall(pci_reboot_init); + static inline void kb_wait(void) { int i; -- cgit v1.2.3 From 6a7bbd57ed50bb62c9a81ae5f2e202ca689e5964 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Mon, 3 Aug 2009 22:38:10 +1000 Subject: x86: Make 64-bit efi_ioremap use ioremap on MMIO regions Booting current 64-bit x86 kernels on the latest Apple MacBook (MacBook5,2) via EFI gives the following warning: [ 0.182209] ------------[ cut here ]------------ [ 0.182222] WARNING: at arch/x86/mm/pageattr.c:581 __cpa_process_fault+0x44/0xa0() [ 0.182227] Hardware name: MacBook5,2 [ 0.182231] CPA: called for zero pte. vaddr = ffff8800ffe00000 cpa->vaddr = ffff8800ffe00000 [ 0.182236] Modules linked in: [ 0.182242] Pid: 0, comm: swapper Not tainted 2.6.31-rc4 #6 [ 0.182246] Call Trace: [ 0.182254] [] ? __cpa_process_fault+0x44/0xa0 [ 0.182261] [] warn_slowpath_common+0x78/0xd0 [ 0.182266] [] warn_slowpath_fmt+0x64/0x70 [ 0.182272] [] ? update_page_count+0x3c/0x50 [ 0.182280] [] ? phys_pmd_init+0x140/0x22e [ 0.182286] [] __cpa_process_fault+0x44/0xa0 [ 0.182292] [] __change_page_attr_set_clr+0x5f0/0xb40 [ 0.182301] [] ? vm_unmap_aliases+0x175/0x190 [ 0.182307] [] change_page_attr_set_clr+0xfe/0x3d0 [ 0.182314] [] _set_memory_uc+0x2a/0x30 [ 0.182319] [] set_memory_uc+0x7b/0xb0 [ 0.182327] [] efi_enter_virtual_mode+0x2ad/0x2c9 [ 0.182334] [] start_kernel+0x2db/0x3f4 [ 0.182340] [] x86_64_start_reservations+0x99/0xb9 [ 0.182345] [] x86_64_start_kernel+0xe0/0xf2 [ 0.182357] ---[ end trace 4eaa2a86a8e2da22 ]--- [ 0.182982] init_memory_mapping: 00000000ffffc000-0000000100000000 [ 0.182993] 00ffffc000 - 0100000000 page 4k This happens because the 64-bit version of efi_ioremap calls init_memory_mapping for all addresses, regardless of whether they are RAM or MMIO. The EFI tables on this machine ask for runtime access to some MMIO regions: [ 0.000000] EFI: mem195: type=11, attr=0x8000000000000000, range=[0x0000000093400000-0x0000000093401000) (0MB) [ 0.000000] EFI: mem196: type=11, attr=0x8000000000000000, range=[0x00000000ffc00000-0x00000000ffc40000) (0MB) [ 0.000000] EFI: mem197: type=11, attr=0x8000000000000000, range=[0x00000000ffc40000-0x00000000ffc80000) (0MB) [ 0.000000] EFI: mem198: type=11, attr=0x8000000000000000, range=[0x00000000ffc80000-0x00000000ffca4000) (0MB) [ 0.000000] EFI: mem199: type=11, attr=0x8000000000000000, range=[0x00000000ffca4000-0x00000000ffcb4000) (0MB) [ 0.000000] EFI: mem200: type=11, attr=0x8000000000000000, range=[0x00000000ffcb4000-0x00000000ffffc000) (3MB) [ 0.000000] EFI: mem201: type=11, attr=0x8000000000000000, range=[0x00000000ffffc000-0x0000000100000000) (0MB) This arranges to pass the EFI memory type through to efi_ioremap, and makes efi_ioremap use ioremap rather than init_memory_mapping if the type is EFI_MEMORY_MAPPED_IO. With this, the above warning goes away. Signed-off-by: Paul Mackerras LKML-Reference: <19062.55858.533494.471153@cargo.ozlabs.ibm.com> Cc: Huang Ying Signed-off-by: H. Peter Anvin --- arch/x86/include/asm/efi.h | 5 +++-- arch/x86/kernel/efi.c | 2 +- arch/x86/kernel/efi_64.c | 6 +++++- 3 files changed, 9 insertions(+), 4 deletions(-) diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h index edc90f23e70..8406ed7f992 100644 --- a/arch/x86/include/asm/efi.h +++ b/arch/x86/include/asm/efi.h @@ -33,7 +33,7 @@ extern unsigned long asmlinkage efi_call_phys(void *, ...); #define efi_call_virt6(f, a1, a2, a3, a4, a5, a6) \ efi_call_virt(f, a1, a2, a3, a4, a5, a6) -#define efi_ioremap(addr, size) ioremap_cache(addr, size) +#define efi_ioremap(addr, size, type) ioremap_cache(addr, size) #else /* !CONFIG_X86_32 */ @@ -84,7 +84,8 @@ extern u64 efi_call6(void *fp, u64 arg1, u64 arg2, u64 arg3, efi_call6((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \ (u64)(a3), (u64)(a4), (u64)(a5), (u64)(a6)) -extern void __iomem *efi_ioremap(unsigned long addr, unsigned long size); +extern void __iomem *efi_ioremap(unsigned long addr, unsigned long size, + u32 type); #endif /* CONFIG_X86_32 */ diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c index 96f7ac0bbf0..19ccf6d0dcc 100644 --- a/arch/x86/kernel/efi.c +++ b/arch/x86/kernel/efi.c @@ -512,7 +512,7 @@ void __init efi_enter_virtual_mode(void) && end_pfn <= max_pfn_mapped)) va = __va(md->phys_addr); else - va = efi_ioremap(md->phys_addr, size); + va = efi_ioremap(md->phys_addr, size, md->type); md->virt_addr = (u64) (unsigned long) va; diff --git a/arch/x86/kernel/efi_64.c b/arch/x86/kernel/efi_64.c index 22c3b7828c5..ac0621a7ac3 100644 --- a/arch/x86/kernel/efi_64.c +++ b/arch/x86/kernel/efi_64.c @@ -98,10 +98,14 @@ void __init efi_call_phys_epilog(void) early_runtime_code_mapping_set_exec(0); } -void __iomem *__init efi_ioremap(unsigned long phys_addr, unsigned long size) +void __iomem *__init efi_ioremap(unsigned long phys_addr, unsigned long size, + u32 type) { unsigned long last_map_pfn; + if (type == EFI_MEMORY_MAPPED_IO) + return ioremap(phys_addr, size); + last_map_pfn = init_memory_mapping(phys_addr, phys_addr + size); if ((last_map_pfn << PAGE_SHIFT) < phys_addr + size) return NULL; -- cgit v1.2.3 From 4486d6ede16b362f89b29845af6fe1a26ae78a54 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Mon, 3 Aug 2009 12:45:10 -0400 Subject: cifs: show noforceuid/noforcegid mount options (try #2) Since forceuid is the default, we now need to show when it's disabled. Signed-off-by: Jeff Layton Signed-off-by: Steve French --- fs/cifs/cifsfs.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 44f30504b82..84b75253b05 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -376,10 +376,14 @@ cifs_show_options(struct seq_file *s, struct vfsmount *m) seq_printf(s, ",uid=%d", cifs_sb->mnt_uid); if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) seq_printf(s, ",forceuid"); + else + seq_printf(s, ",noforceuid"); seq_printf(s, ",gid=%d", cifs_sb->mnt_gid); if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) seq_printf(s, ",forcegid"); + else + seq_printf(s, ",noforcegid"); cifs_show_address(s, tcon->ses->server); -- cgit v1.2.3 From 24e2fb615fd6b624c320cec9ea9d91a75dad902e Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Sun, 2 Aug 2009 13:00:18 +0200 Subject: cifs: Read buffer overflow Check whether index is within bounds before testing the element. Acked-by: Jeff Layton Signed-off-by: Roel Kluin Signed-off-by: Steve French --- fs/cifs/cifs_unicode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c index 60e3c4253de..714a542cbaf 100644 --- a/fs/cifs/cifs_unicode.c +++ b/fs/cifs/cifs_unicode.c @@ -44,7 +44,7 @@ cifs_ucs2_bytes(const __le16 *from, int maxbytes, int maxwords = maxbytes / 2; char tmp[NLS_MAX_CHARSET_SIZE]; - for (i = 0; from[i] && i < maxwords; i++) { + for (i = 0; i < maxwords && from[i]; i++) { charlen = codepage->uni2char(le16_to_cpu(from[i]), tmp, NLS_MAX_CHARSET_SIZE); if (charlen > 0) -- cgit v1.2.3 From d2ba8b211bb8abc29aa627dbd4dce08cfbc8082b Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Mon, 3 Aug 2009 14:44:54 -0700 Subject: x86: Fix assert syntax in vmlinux.lds.S Older versions of binutils did not accept the naked "ASSERT" syntax; it is considered an expression whose value needs to be assigned to something. Reported-tested-and-fixed-by: Jean Delvare Signed-off-by: H. Peter Anvin --- arch/x86/kernel/vmlinux.lds.S | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S index 59f31d2dd43..78d185d797d 100644 --- a/arch/x86/kernel/vmlinux.lds.S +++ b/arch/x86/kernel/vmlinux.lds.S @@ -393,8 +393,8 @@ SECTIONS #ifdef CONFIG_X86_32 -ASSERT((_end - LOAD_OFFSET <= KERNEL_IMAGE_SIZE), - "kernel image bigger than KERNEL_IMAGE_SIZE") +. = ASSERT((_end - LOAD_OFFSET <= KERNEL_IMAGE_SIZE), + "kernel image bigger than KERNEL_IMAGE_SIZE"); #else /* * Per-cpu symbols which need to be offset from __per_cpu_load @@ -407,12 +407,12 @@ INIT_PER_CPU(irq_stack_union); /* * Build-time check on the image size: */ -ASSERT((_end - _text <= KERNEL_IMAGE_SIZE), - "kernel image bigger than KERNEL_IMAGE_SIZE") +. = ASSERT((_end - _text <= KERNEL_IMAGE_SIZE), + "kernel image bigger than KERNEL_IMAGE_SIZE"); #ifdef CONFIG_SMP -ASSERT((per_cpu__irq_stack_union == 0), - "irq_stack_union is not at start of per-cpu area"); +. = ASSERT((per_cpu__irq_stack_union == 0), + "irq_stack_union is not at start of per-cpu area"); #endif #endif /* CONFIG_X86_32 */ @@ -420,7 +420,7 @@ ASSERT((per_cpu__irq_stack_union == 0), #ifdef CONFIG_KEXEC #include -ASSERT(kexec_control_code_size <= KEXEC_CONTROL_CODE_MAX_SIZE, - "kexec control code size is too big") +. = ASSERT(kexec_control_code_size <= KEXEC_CONTROL_CODE_MAX_SIZE, + "kexec control code size is too big"); #endif -- cgit v1.2.3 From bab9a3da93bfe09c609407dedae5708b07a7ac56 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Thu, 30 Jul 2009 11:10:01 +0200 Subject: x86, msr: execute on the correct CPU subset Make rdmsr_on_cpus/wrmsr_on_cpus execute on the current CPU only if it is in the supplied bitmask. Signed-off-by: Borislav Petkov Signed-off-by: H. Peter Anvin --- arch/x86/lib/msr.c | 26 ++++++++++---------------- 1 file changed, 10 insertions(+), 16 deletions(-) diff --git a/arch/x86/lib/msr.c b/arch/x86/lib/msr.c index 1440b9c0547..caa24aca811 100644 --- a/arch/x86/lib/msr.c +++ b/arch/x86/lib/msr.c @@ -89,16 +89,13 @@ void rdmsr_on_cpus(const cpumask_t *mask, u32 msr_no, struct msr *msrs) rv.msrs = msrs; rv.msr_no = msr_no; - preempt_disable(); - /* - * FIXME: handle the CPU we're executing on separately for now until - * smp_call_function_many has been fixed to not skip it. - */ - this_cpu = raw_smp_processor_id(); - smp_call_function_single(this_cpu, __rdmsr_on_cpu, &rv, 1); + this_cpu = get_cpu(); + + if (cpumask_test_cpu(this_cpu, mask)) + __rdmsr_on_cpu(&rv); smp_call_function_many(mask, __rdmsr_on_cpu, &rv, 1); - preempt_enable(); + put_cpu(); } EXPORT_SYMBOL(rdmsr_on_cpus); @@ -121,16 +118,13 @@ void wrmsr_on_cpus(const cpumask_t *mask, u32 msr_no, struct msr *msrs) rv.msrs = msrs; rv.msr_no = msr_no; - preempt_disable(); - /* - * FIXME: handle the CPU we're executing on separately for now until - * smp_call_function_many has been fixed to not skip it. - */ - this_cpu = raw_smp_processor_id(); - smp_call_function_single(this_cpu, __wrmsr_on_cpu, &rv, 1); + this_cpu = get_cpu(); + + if (cpumask_test_cpu(this_cpu, mask)) + __wrmsr_on_cpu(&rv); smp_call_function_many(mask, __wrmsr_on_cpu, &rv, 1); - preempt_enable(); + put_cpu(); } EXPORT_SYMBOL(wrmsr_on_cpus); -- cgit v1.2.3 From f1f029c7bfbf4ee1918b90a431ab823bed812504 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Mon, 3 Aug 2009 16:33:40 -0700 Subject: x86: fix assembly constraints in native_save_fl() From Gabe Black in bugzilla 13888: native_save_fl is implemented as follows: 11static inline unsigned long native_save_fl(void) 12{ 13 unsigned long flags; 14 15 asm volatile("# __raw_save_flags\n\t" 16 "pushf ; pop %0" 17 : "=g" (flags) 18 : /* no input */ 19 : "memory"); 20 21 return flags; 22} If gcc chooses to put flags on the stack, for instance because this is inlined into a larger function with more register pressure, the offset of the flags variable from the stack pointer will change when the pushf is performed. gcc doesn't attempt to understand that fact, and address used for pop will still be the same. It will write to somewhere near flags on the stack but not actually into it and overwrite some other value. I saw this happen in the ide_device_add_all function when running in a simulator I work on. I'm assuming that some quirk of how the simulated hardware is set up caused the code path this is on to be executed when it normally wouldn't. A simple fix might be to change "=g" to "=r". Reported-by: Gabe Black Signed-off-by: H. Peter Anvin Cc: Stable Team --- arch/x86/include/asm/irqflags.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h index 2bdab21f089..c6ccbe7e81a 100644 --- a/arch/x86/include/asm/irqflags.h +++ b/arch/x86/include/asm/irqflags.h @@ -12,9 +12,15 @@ static inline unsigned long native_save_fl(void) { unsigned long flags; + /* + * Note: this needs to be "=r" not "=rm", because we have the + * stack offset from what gcc expects at the time the "pop" is + * executed, and so a memory reference with respect to the stack + * would end up using the wrong address. + */ asm volatile("# __raw_save_flags\n\t" "pushf ; pop %0" - : "=g" (flags) + : "=r" (flags) : /* no input */ : "memory"); -- cgit v1.2.3 From 7781de74568bddfefbd2d32a934a8c791a2420cd Mon Sep 17 00:00:00 2001 From: Jakob Bornecrantz Date: Mon, 3 Aug 2009 13:43:58 +0100 Subject: drm: Small logic fix in drm_mode_setcrtc Match the logic to the comments in the debug message Signed-off-by: Jakob Bornecrantz Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_crtc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 8fab7890a36..33be210d672 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -1461,7 +1461,7 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, goto out; } - if (crtc_req->count_connectors > 0 && !mode && !fb) { + if (crtc_req->count_connectors > 0 && (!mode || !fb)) { DRM_DEBUG("Count connectors is %d but no mode or fb set\n", crtc_req->count_connectors); ret = -EINVAL; -- cgit v1.2.3 From 4cb72b1727140f131b2df5f37c2e54f5965f98c2 Mon Sep 17 00:00:00 2001 From: Jakob Bornecrantz Date: Mon, 3 Aug 2009 13:43:59 +0100 Subject: drm: Catch stop possible NULL pointer reference This was caught by Weiss. Also added some comments to the fb_changed and mode_changed variables to explain what they do. Signed-off-by: Jakob Bornecrantz Tested-by: Thomas White Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_crtc_helper.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c index 3da9cfa3184..6aaa2cb2336 100644 --- a/drivers/gpu/drm/drm_crtc_helper.c +++ b/drivers/gpu/drm/drm_crtc_helper.c @@ -706,8 +706,8 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set) struct drm_encoder **save_encoders, *new_encoder; struct drm_framebuffer *old_fb = NULL; bool save_enabled; - bool mode_changed = false; - bool fb_changed = false; + bool mode_changed = false; /* if true do a full mode set */ + bool fb_changed = false; /* if true and !mode_changed just do a flip */ struct drm_connector *connector; int count = 0, ro, fail = 0; struct drm_crtc_helper_funcs *crtc_funcs; @@ -758,6 +758,8 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set) if (set->crtc->fb == NULL) { DRM_DEBUG("crtc has no fb, full mode set\n"); mode_changed = true; + } else if (set->fb == NULL) { + mode_changed = true; } else if ((set->fb->bits_per_pixel != set->crtc->fb->bits_per_pixel) || set->fb->depth != set->crtc->fb->depth) -- cgit v1.2.3 From 7320700df1864b601cef5adbddce8654a0e3f78b Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 3 Aug 2009 17:01:53 -0400 Subject: drm/radeon: add some new r7xx pci ids Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- include/drm/drm_pciids.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h index 7174818c2c1..9d4c0049154 100644 --- a/include/drm/drm_pciids.h +++ b/include/drm/drm_pciids.h @@ -257,9 +257,12 @@ {0x1002, 0x940F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R600|RADEON_NEW_MEMMAP}, \ {0x1002, 0x94A0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV740|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ {0x1002, 0x94A1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV740|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x94A3, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV740|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ {0x1002, 0x94B1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV740|RADEON_NEW_MEMMAP}, \ {0x1002, 0x94B3, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV740|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x94B4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV740|RADEON_NEW_MEMMAP}, \ {0x1002, 0x94B5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV740|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x94B9, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV740|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ {0x1002, 0x9440, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV770|RADEON_NEW_MEMMAP}, \ {0x1002, 0x9441, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV770|RADEON_NEW_MEMMAP}, \ {0x1002, 0x9442, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV770|RADEON_NEW_MEMMAP}, \ @@ -288,6 +291,7 @@ {0x1002, 0x948F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV730|RADEON_NEW_MEMMAP}, \ {0x1002, 0x9490, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV730|RADEON_NEW_MEMMAP}, \ {0x1002, 0x9491, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV730|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x9495, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV730|RADEON_NEW_MEMMAP}, \ {0x1002, 0x9498, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV730|RADEON_NEW_MEMMAP}, \ {0x1002, 0x949C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV730|RADEON_NEW_MEMMAP}, \ {0x1002, 0x949E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV730|RADEON_NEW_MEMMAP}, \ @@ -325,6 +329,7 @@ {0x1002, 0x9552, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV710|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ {0x1002, 0x9553, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV710|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ {0x1002, 0x9555, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV710|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x9557, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV710|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ {0x1002, 0x9580, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV630|RADEON_NEW_MEMMAP}, \ {0x1002, 0x9581, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV630|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ {0x1002, 0x9583, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV630|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ -- cgit v1.2.3 From 0924d942256ac470c5f7b4ebaf7fe0415fc6fa59 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 3 Aug 2009 12:03:03 +1000 Subject: drm/radeon/kms: fix rv515 VRAM initialisation. This got missed in the VRAM init re-workings. Signed-of-by: Dave Airlie --- drivers/gpu/drm/radeon/rv515.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c index 551e608702e..fd8f3ca716e 100644 --- a/drivers/gpu/drm/radeon/rv515.c +++ b/drivers/gpu/drm/radeon/rv515.c @@ -370,6 +370,7 @@ void rv515_vram_info(struct radeon_device *rdev) rv515_vram_get_type(rdev); + r100_vram_init_sizes(rdev); /* FIXME: we should enforce default clock in case GPU is not in * default setup */ -- cgit v1.2.3 From 6d0897ba58139523d37e97855ee0fe2d78629da6 Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Fri, 31 Jul 2009 10:47:51 +0200 Subject: drm/ttm: Fix a potential comparison of structs. On some architectures the comparison may cause a compilation failure. Original partial fix Signed-off-by: Thomas Hellstrom Signed-off-by: Pekka Paalanen Signed-off-by: Dave Airlie --- drivers/gpu/drm/ttm/ttm_bo_util.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c index ce2e6f38ea0..ad4ada07c6c 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -150,7 +150,7 @@ static int ttm_copy_io_ttm_page(struct ttm_tt *ttm, void *src, #ifdef CONFIG_X86 dst = kmap_atomic_prot(d, KM_USER0, prot); #else - if (prot != PAGE_KERNEL) + if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL)) dst = vmap(&d, 1, 0, prot); else dst = kmap(d); @@ -163,7 +163,7 @@ static int ttm_copy_io_ttm_page(struct ttm_tt *ttm, void *src, #ifdef CONFIG_X86 kunmap_atomic(dst, KM_USER0); #else - if (prot != PAGE_KERNEL) + if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL)) vunmap(dst); else kunmap(d); @@ -186,7 +186,7 @@ static int ttm_copy_ttm_io_page(struct ttm_tt *ttm, void *dst, #ifdef CONFIG_X86 src = kmap_atomic_prot(s, KM_USER0, prot); #else - if (prot != PAGE_KERNEL) + if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL)) src = vmap(&s, 1, 0, prot); else src = kmap(s); @@ -199,7 +199,7 @@ static int ttm_copy_ttm_io_page(struct ttm_tt *ttm, void *dst, #ifdef CONFIG_X86 kunmap_atomic(src, KM_USER0); #else - if (prot != PAGE_KERNEL) + if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL)) vunmap(src); else kunmap(s); -- cgit v1.2.3 From de05065ff5d6878523317ff4a0b48a1239f80f73 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 3 Aug 2009 12:05:34 +1000 Subject: drm/radeon/kms: fix nomodeset. The ordering was wrong to get the nomodeset parameter to work. Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_drv.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index 3cfcee17dc5..0bd5879a495 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -318,6 +318,14 @@ static int __init radeon_init(void) driver = &driver_old; driver->num_ioctls = radeon_max_ioctl; #if defined(CONFIG_DRM_RADEON_KMS) +#ifdef CONFIG_VGA_CONSOLE + if (vgacon_text_force() && radeon_modeset == -1) { + DRM_INFO("VGACON disable radeon kernel modesetting.\n"); + driver = &driver_old; + driver->driver_features &= ~DRIVER_MODESET; + radeon_modeset = 0; + } +#endif /* if enabled by default */ if (radeon_modeset == -1) { DRM_INFO("radeon default to kernel modesetting.\n"); @@ -329,17 +337,8 @@ static int __init radeon_init(void) driver->driver_features |= DRIVER_MODESET; driver->num_ioctls = radeon_max_kms_ioctl; } - /* if the vga console setting is enabled still * let modprobe override it */ -#ifdef CONFIG_VGA_CONSOLE - if (vgacon_text_force() && radeon_modeset == -1) { - DRM_INFO("VGACON disable radeon kernel modesetting.\n"); - driver = &driver_old; - driver->driver_features &= ~DRIVER_MODESET; - radeon_modeset = 0; - } -#endif #endif return drm_init(driver); } -- cgit v1.2.3 From c9b7fb54f0a51e587fa09be3a85666b43d36a850 Mon Sep 17 00:00:00 2001 From: Xiaotian Feng Date: Wed, 29 Jul 2009 21:28:24 +0800 Subject: drm/radeon/kms: fix memory leak in radeon_driver_load_kms This patch fixes following kmemleak report: unreferenced object 0xffff88022cb53000 (size 4096): comm "work_for_cpu", pid 97, jiffies 4294672345 backtrace: [] create_object+0x19f/0x2a0 [] kmemleak_alloc+0x26/0x4c [] __kmalloc+0x187/0x1b0 [] kzalloc.clone.0+0x13/0x15 [radeon] [] radeon_driver_load_kms+0x26/0xe1 [radeon] [] drm_get_dev+0x37f/0x480 [drm] [] radeon_pci_probe+0x15/0x269 [radeon] [] local_pci_probe+0x17/0x1b [] do_work_for_cpu+0x18/0x2a [] kthread+0x8a/0x92 [] child_rip+0xa/0x20 [] 0xffffffffffffffff Signed-off-by: Xiaotian Feng Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_kms.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c index 937a2f1cdb4..3357110e30c 100644 --- a/drivers/gpu/drm/radeon/radeon_kms.c +++ b/drivers/gpu/drm/radeon/radeon_kms.c @@ -58,6 +58,8 @@ int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags) if (r) { DRM_ERROR("Failed to initialize radeon, disabling IOCTL\n"); radeon_device_fini(rdev); + kfree(rdev); + dev->dev_private = NULL; return r; } return 0; -- cgit v1.2.3 From fee280d3fd9bc5247bef9f4ab35a4693bfffdcfd Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Mon, 3 Aug 2009 12:39:06 +0200 Subject: drm/ttm: Fix a sync object leak. If there are multiple simultaneous waiters for the same buffer object, a temporary reference to its sync object may be leaked. Signed-off-by: Thomas Hellstrom Signed-off-by: Dave Airlie --- drivers/gpu/drm/ttm/ttm_bo.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 6538d423698..aa82d5370c3 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -1575,6 +1575,10 @@ int ttm_bo_wait(struct ttm_buffer_object *bo, driver->sync_obj_unref(&sync_obj); driver->sync_obj_unref(&tmp_obj); spin_lock(&bo->lock); + } else { + spin_unlock(&bo->lock); + driver->sync_obj_unref(&sync_obj); + spin_lock(&bo->lock); } } return 0; -- cgit v1.2.3 From fa99239cb73dbf419bea9f334b85ba94ac88a532 Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Mon, 3 Aug 2009 14:20:32 +0200 Subject: drm/radeon: Read buffer overflow Check whether index is within bounds before grabbing the element. Signed-off-by: Roel Kluin Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r100.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index 05a44896dff..f1ba8ff4113 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -722,13 +722,14 @@ int r100_cs_packet_parse(struct radeon_cs_parser *p, unsigned idx) { struct radeon_cs_chunk *ib_chunk = &p->chunks[p->chunk_ib_idx]; - uint32_t header = ib_chunk->kdata[idx]; + uint32_t header; if (idx >= ib_chunk->length_dw) { DRM_ERROR("Can not parse packet at %d after CS end %d !\n", idx, ib_chunk->length_dw); return -EINVAL; } + header = ib_chunk->kdata[idx]; pkt->idx = idx; pkt->type = CP_PACKET_GET_TYPE(header); pkt->count = CP_PACKET_GET_COUNT(header); -- cgit v1.2.3 From c96e7c7a3a79931446ecf9494a8415e4d164ebd8 Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Mon, 3 Aug 2009 14:22:53 +0200 Subject: drm/ttm: Read buffer overflow Check whether index is within bounds before grabbing the element. Signed-off-by: Roel Kluin Signed-off-by: Dave Airlie --- drivers/gpu/drm/ttm/ttm_bo.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index aa82d5370c3..c2b0d710d10 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -1182,13 +1182,14 @@ static int ttm_bo_force_list_clean(struct ttm_bo_device *bdev, int ttm_bo_clean_mm(struct ttm_bo_device *bdev, unsigned mem_type) { - struct ttm_mem_type_manager *man = &bdev->man[mem_type]; + struct ttm_mem_type_manager *man; int ret = -EINVAL; if (mem_type >= TTM_NUM_MEM_TYPES) { printk(KERN_ERR TTM_PFX "Illegal memory type %d\n", mem_type); return ret; } + man = &bdev->man[mem_type]; if (!man->has_type) { printk(KERN_ERR TTM_PFX "Trying to take down uninitialized " -- cgit v1.2.3 From d098564f3b2b5d555e51bca765a6a9e0dda8f2cd Mon Sep 17 00:00:00 2001 From: Steve French Date: Tue, 4 Aug 2009 03:53:28 +0000 Subject: [CIFS] Update readme to reflect forceuid mount parms Signed-off-by: Steve French --- fs/cifs/CHANGES | 3 ++- fs/cifs/README | 25 ++++++++++++------------- 2 files changed, 14 insertions(+), 14 deletions(-) diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES index 651cefde385..e85b1e4389e 100644 --- a/fs/cifs/CHANGES +++ b/fs/cifs/CHANGES @@ -2,7 +2,8 @@ Version 1.60 ------------- Fix memory leak in reconnect. Fix oops in DFS mount error path. Set s_maxbytes to smaller (the max that vfs can handle) so that -sendfile will now work over cifs mounts again. +sendfile will now work over cifs mounts again. Add noforcegid +and noforceuid mount parameters. Version 1.59 ------------ diff --git a/fs/cifs/README b/fs/cifs/README index ad92921dbde..79c1a93400b 100644 --- a/fs/cifs/README +++ b/fs/cifs/README @@ -262,11 +262,11 @@ A partial list of the supported mount options follows: mount. domain Set the SMB/CIFS workgroup name prepended to the username during CIFS session establishment - forceuid Set the default uid for inodes based on the uid - passed in. For mounts to servers + forceuid Set the default uid for inodes to the uid + passed in on mount. For mounts to servers which do support the CIFS Unix extensions, such as a properly configured Samba server, the server provides - the uid, gid and mode so this parameter should not be + the uid, gid and mode so this parameter should not be specified unless the server and clients uid and gid numbering differ. If the server and client are in the same domain (e.g. running winbind or nss_ldap) and @@ -278,11 +278,7 @@ A partial list of the supported mount options follows: of existing files will be the uid (gid) of the person who executed the mount (root, except when mount.cifs is configured setuid for user mounts) unless the "uid=" - (gid) mount option is specified. For the uid (gid) of newly - created files and directories, ie files created since - the last mount of the server share, the expected uid - (gid) is cached as long as the inode remains in - memory on the client. Also note that permission + (gid) mount option is specified. Also note that permission checks (authorization checks) on accesses to a file occur at the server, but there are cases in which an administrator may want to restrict at the client as well. For those @@ -290,12 +286,15 @@ A partial list of the supported mount options follows: (such as Windows), permissions can also be checked at the client, and a crude form of client side permission checking can be enabled by specifying file_mode and dir_mode on - the client. Note that the mount.cifs helper must be - at version 1.10 or higher to support specifying the uid - (or gid) in non-numeric form. - forcegid (similar to above but for the groupid instead of uid) + the client. (default) + forcegid (similar to above but for the groupid instead of uid) (default) + noforceuid Fill in file owner information (uid) by requesting it from + the server if possible. With this option, the value given in + the uid= option (on mount) will only be used if the server + can not support returning uids on inodes. + noforcegid (similar to above but for the group owner, gid, instead of uid) uid Set the default uid for inodes, and indicate to the - cifs kernel driver which local user mounted . If the server + cifs kernel driver which local user mounted. If the server supports the unix extensions the default uid is not used to fill in the owner fields of inodes (files) unless the "forceuid" parameter is specified. -- cgit v1.2.3 From 70d715fd0597f18528f389b5ac59102263067744 Mon Sep 17 00:00:00 2001 From: Hiroshi Shimamoto Date: Mon, 3 Aug 2009 11:48:19 +0900 Subject: posix-timers: Fix oops in clock_nanosleep() with CLOCK_MONOTONIC_RAW Prevent calling do_nanosleep() with clockid CLOCK_MONOTONIC_RAW, it may cause oops, such as NULL pointer dereference. Signed-off-by: Hiroshi Shimamoto Cc: Andrew Morton Cc: Thomas Gleixner Cc: John Stultz Cc: LKML-Reference: <4A764FF3.50607@ct.jp.nec.com> Signed-off-by: Ingo Molnar --- kernel/posix-timers.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c index 052ec4d195c..d089d052c4a 100644 --- a/kernel/posix-timers.c +++ b/kernel/posix-timers.c @@ -202,6 +202,12 @@ static int no_timer_create(struct k_itimer *new_timer) return -EOPNOTSUPP; } +static int no_nsleep(const clockid_t which_clock, int flags, + struct timespec *tsave, struct timespec __user *rmtp) +{ + return -EOPNOTSUPP; +} + /* * Return nonzero if we know a priori this clockid_t value is bogus. */ @@ -254,6 +260,7 @@ static __init int init_posix_timers(void) .clock_get = posix_get_monotonic_raw, .clock_set = do_posix_clock_nosettime, .timer_create = no_timer_create, + .nsleep = no_nsleep, }; register_posix_clock(CLOCK_REALTIME, &clock_realtime); -- cgit v1.2.3 From 7e030655dda5b5efc4305e2a8f46c4967d32eb3d Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Sun, 2 Aug 2009 13:43:11 +0200 Subject: perf: Fix read buffer overflow Check whether index is within bounds before testing the element. Signed-off-by: Roel Kluin Cc: a.p.zijlstra@chello.nl Cc: Andrew Morton LKML-Reference: <4A757BCF.40101@gmail.com> Signed-off-by: Ingo Molnar --- tools/perf/builtin-report.c | 2 +- tools/perf/util/quote.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 95fd06cdaa9..ce4f28645e6 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -253,7 +253,7 @@ static int strcommon(const char *pathname) { int n = 0; - while (pathname[n] == cwd[n] && n < cwdlen) + while (n < cwdlen && pathname[n] == cwd[n]) ++n; return n; diff --git a/tools/perf/util/quote.c b/tools/perf/util/quote.c index c6e5dc0dc82..2726fe40eb5 100644 --- a/tools/perf/util/quote.c +++ b/tools/perf/util/quote.c @@ -318,7 +318,7 @@ char *quote_path_relative(const char *in, int len, strbuf_addch(out, '"'); if (prefix) { int off = 0; - while (prefix[off] && off < len && prefix[off] == in[off]) + while (off < len && prefix[off] && prefix[off] == in[off]) if (prefix[off] == '/') { prefix += off + 1; in += off + 1; -- cgit v1.2.3 From c2718348b41a8e7646516d9af8bb0231c6a44374 Mon Sep 17 00:00:00 2001 From: Doug Thompson Date: Tue, 4 Aug 2009 12:02:20 +0200 Subject: amd64_edac: print debug statements only on error Add forgotten return calls for the successful cases. Signed-off-by: Doug Thompson Signed-off-by: Borislav Petkov --- drivers/edac/amd64_edac.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index 5fa924d61b1..e2a10bcba7a 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -868,6 +868,8 @@ static void amd64_read_dbam_reg(struct amd64_pvt *pvt) goto err_reg; } + return; + err_reg: debugf0("Error reading F2x%03x.\n", reg); } @@ -2634,6 +2636,8 @@ static void amd64_read_mc_registers(struct amd64_pvt *pvt) amd64_dump_misc_regs(pvt); + return; + err_reg: debugf0("Reading an MC register failed\n"); -- cgit v1.2.3 From 57ca7deb062abf56168d15f000c16e25f88a9cf3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Anders=20Grafstr=C3=B6m?= Date: Tue, 4 Aug 2009 13:11:47 +0200 Subject: jffs2: Fix return value from jffs2_do_readpage_nolock() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This fixes "kernel BUG at fs/jffs2/file.c:251!". This pseudocode hopefully illustrates the scenario that triggers it: jffs2_write_begin { jffs2_do_readpage_nolock { jffs2_read_inode_range { jffs2_read_dnode { Data CRC 33c102e9 != calculated CRC 0ef77e7b for node at 005d42e4 return -EIO; } } ClearPageUptodate(pg); return 0; } } jffs2_write_end { BUG_ON(!PageUptodate(pg)); } Signed-off-by: Anders Grafström Signed-off-by: David Woodhouse --- fs/jffs2/file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c index 5edc2bf2058..23c94753986 100644 --- a/fs/jffs2/file.c +++ b/fs/jffs2/file.c @@ -99,7 +99,7 @@ static int jffs2_do_readpage_nolock (struct inode *inode, struct page *pg) kunmap(pg); D2(printk(KERN_DEBUG "readpage finished\n")); - return 0; + return ret; } int jffs2_do_readpage_unlock(struct inode *inode, struct page *pg) -- cgit v1.2.3 From 6c7184b77464261b7d55583a48accbd1350923a3 Mon Sep 17 00:00:00 2001 From: Jack Steiner Date: Mon, 27 Jul 2009 09:35:07 -0500 Subject: x86, UV: Handle missing blade-local memory correctly UV blades may not have any blade-local memory. Add a field (nid) to the UV blade structure to indicates whether the node has local memory. This is needed by the GRU driver (pushed separately). Signed-off-by: Jack Steiner Cc: linux-mm@kvack.org LKML-Reference: <20090727143507.GA7006@sgi.com> Signed-off-by: Ingo Molnar --- arch/x86/include/asm/uv/uv_hub.h | 7 +++++++ arch/x86/kernel/apic/x2apic_uv_x.c | 5 +++++ 2 files changed, 12 insertions(+) diff --git a/arch/x86/include/asm/uv/uv_hub.h b/arch/x86/include/asm/uv/uv_hub.h index 341070f7ad5..a6dde059e02 100644 --- a/arch/x86/include/asm/uv/uv_hub.h +++ b/arch/x86/include/asm/uv/uv_hub.h @@ -327,6 +327,7 @@ struct uv_blade_info { unsigned short nr_possible_cpus; unsigned short nr_online_cpus; unsigned short pnode; + short memory_nid; }; extern struct uv_blade_info *uv_blade_info; extern short *uv_node_to_blade; @@ -363,6 +364,12 @@ static inline int uv_blade_to_pnode(int bid) return uv_blade_info[bid].pnode; } +/* Nid of memory node on blade. -1 if no blade-local memory */ +static inline int uv_blade_to_memory_nid(int bid) +{ + return uv_blade_info[bid].memory_nid; +} + /* Determine the number of possible cpus on a blade */ static inline int uv_blade_nr_possible_cpus(int bid) { diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c index 096d19aea2f..ad3f0a984ca 100644 --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -591,6 +591,8 @@ void __init uv_system_init(void) bytes = sizeof(struct uv_blade_info) * uv_num_possible_blades(); uv_blade_info = kmalloc(bytes, GFP_KERNEL); BUG_ON(!uv_blade_info); + for (blade = 0; blade < uv_num_possible_blades(); blade++) + uv_blade_info[blade].memory_nid = -1; get_lowmem_redirect(&lowmem_redir_base, &lowmem_redir_size); @@ -629,6 +631,9 @@ void __init uv_system_init(void) lcpu = uv_blade_info[blade].nr_possible_cpus; uv_blade_info[blade].nr_possible_cpus++; + /* Any node on the blade, else will contain -1. */ + uv_blade_info[blade].memory_nid = nid; + uv_cpu_hub_info(cpu)->lowmem_remap_base = lowmem_redir_base; uv_cpu_hub_info(cpu)->lowmem_remap_top = lowmem_redir_size; uv_cpu_hub_info(cpu)->m_val = m_val; -- cgit v1.2.3 From cc5e4fa1bd4d2f56da07f9092281afdcd2374ab9 Mon Sep 17 00:00:00 2001 From: Jack Steiner Date: Mon, 27 Jul 2009 09:36:56 -0500 Subject: x86, UV: Delete mapping of MMR rangs mapped by BIOS The UV BIOS has added additional MMR ranges that are mapped via EFI virtual mode mappings. These ranges should be deleted from ranges mapped by uv_system_init(). Signed-off-by: Jack Steiner Cc: linux-mm@kvack.org LKML-Reference: <20090727143656.GA7698@sgi.com> Signed-off-by: Ingo Molnar --- arch/x86/kernel/apic/x2apic_uv_x.c | 31 +------------------------------ 1 file changed, 1 insertion(+), 30 deletions(-) diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c index ad3f0a984ca..445c210daf8 100644 --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -362,12 +362,6 @@ static __init void get_lowmem_redirect(unsigned long *base, unsigned long *size) BUG(); } -static __init void map_low_mmrs(void) -{ - init_extra_mapping_uc(UV_GLOBAL_MMR32_BASE, UV_GLOBAL_MMR32_SIZE); - init_extra_mapping_uc(UV_LOCAL_MMR_BASE, UV_LOCAL_MMR_SIZE); -} - enum map_type {map_wb, map_uc}; static __init void map_high(char *id, unsigned long base, int shift, @@ -395,26 +389,6 @@ static __init void map_gru_high(int max_pnode) map_high("GRU", gru.s.base, shift, max_pnode, map_wb); } -static __init void map_config_high(int max_pnode) -{ - union uvh_rh_gam_cfg_overlay_config_mmr_u cfg; - int shift = UVH_RH_GAM_CFG_OVERLAY_CONFIG_MMR_BASE_SHFT; - - cfg.v = uv_read_local_mmr(UVH_RH_GAM_CFG_OVERLAY_CONFIG_MMR); - if (cfg.s.enable) - map_high("CONFIG", cfg.s.base, shift, max_pnode, map_uc); -} - -static __init void map_mmr_high(int max_pnode) -{ - union uvh_rh_gam_mmr_overlay_config_mmr_u mmr; - int shift = UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR_BASE_SHFT; - - mmr.v = uv_read_local_mmr(UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR); - if (mmr.s.enable) - map_high("MMR", mmr.s.base, shift, max_pnode, map_uc); -} - static __init void map_mmioh_high(int max_pnode) { union uvh_rh_gam_mmioh_overlay_config_mmr_u mmioh; @@ -566,8 +540,6 @@ void __init uv_system_init(void) unsigned long mmr_base, present, paddr; unsigned short pnode_mask; - map_low_mmrs(); - m_n_config.v = uv_read_local_mmr(UVH_SI_ADDR_MAP_CONFIG); m_val = m_n_config.s.m_skt; n_val = m_n_config.s.n_skt; @@ -667,11 +639,10 @@ void __init uv_system_init(void) pnode = (paddr >> m_val) & pnode_mask; blade = boot_pnode_to_blade(pnode); uv_node_to_blade[nid] = blade; + max_pnode = max(pnode, max_pnode); } map_gru_high(max_pnode); - map_mmr_high(max_pnode); - map_config_high(max_pnode); map_mmioh_high(max_pnode); uv_cpu_init(); -- cgit v1.2.3 From 67e83f309ed0baaf01a2c956b5174905bcdc1242 Mon Sep 17 00:00:00 2001 From: Jack Steiner Date: Mon, 27 Jul 2009 09:38:08 -0500 Subject: x86, UV: Fix macros for accessing large node numbers The UV chipset automatically supplies the upper bits on nodes being referenced by MMR accesses. These bit can be deleted from the hub addressing macros. Signed-off-by: Jack Steiner LKML-Reference: <20090727143808.GA8076@sgi.com> Signed-off-by: Ingo Molnar --- arch/x86/include/asm/uv/uv_hub.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/include/asm/uv/uv_hub.h b/arch/x86/include/asm/uv/uv_hub.h index a6dde059e02..77a68505419 100644 --- a/arch/x86/include/asm/uv/uv_hub.h +++ b/arch/x86/include/asm/uv/uv_hub.h @@ -175,7 +175,7 @@ DECLARE_PER_CPU(struct uv_hub_info_s, __uv_hub_info); #define UV_GLOBAL_MMR32_PNODE_BITS(p) ((p) << (UV_GLOBAL_MMR32_PNODE_SHIFT)) #define UV_GLOBAL_MMR64_PNODE_BITS(p) \ - ((unsigned long)(UV_PNODE_TO_GNODE(p)) << UV_GLOBAL_MMR64_PNODE_SHIFT) + (((unsigned long)(p)) << UV_GLOBAL_MMR64_PNODE_SHIFT) #define UV_APIC_PNODE_SHIFT 6 -- cgit v1.2.3 From c5997fa8d7aca3c9876a6ff71bacf27c41095ce9 Mon Sep 17 00:00:00 2001 From: Jack Steiner Date: Mon, 27 Jul 2009 09:38:56 -0500 Subject: x86, UV: Fix UV apic mode Change SGI UV default apicid mode to "physical". This is required to match settings in the UV hub chip. Signed-off-by: Jack Steiner LKML-Reference: <20090727143856.GA8905@sgi.com> Signed-off-by: Ingo Molnar --- arch/x86/kernel/apic/x2apic_uv_x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c index 445c210daf8..832e908adcb 100644 --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -261,7 +261,7 @@ struct apic apic_x2apic_uv_x = { .apic_id_registered = uv_apic_id_registered, .irq_delivery_mode = dest_Fixed, - .irq_dest_mode = 1, /* logical */ + .irq_dest_mode = 0, /* physical */ .target_cpus = uv_target_cpus, .disable_esr = 0, -- cgit v1.2.3 From d8c7eb34c2db6268909ae8c3958be63bde254292 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Sat, 25 Jul 2009 03:23:09 -0700 Subject: x86: Don't use current_cpu_data in x2apic phys_pkg_id One system has socket 1 come up as BSP. kexeced kernel reports BSP as: [ 1.524550] Initializing cgroup subsys cpuacct [ 1.536064] initial_apicid:20 [ 1.537135] ht_mask_width:1 [ 1.538128] core_select_mask:f [ 1.539126] core_plus_mask_width:5 [ 1.558479] CPU: Physical Processor ID: 0 [ 1.559501] CPU: Processor Core ID: 0 [ 1.560539] CPU: L1 I cache: 32K, L1 D cache: 32K [ 1.579098] CPU: L2 cache: 256K [ 1.580085] CPU: L3 cache: 24576K [ 1.581108] CPU 0/0x20 -> Node 0 [ 1.596193] CPU 0 microcode level: 0xffff0008 It doesn't have correct physical processor id and will get an error: [ 38.840859] CPU0 attaching sched-domain: [ 38.848287] domain 0: span 0,8,72 level SIBLING [ 38.851151] groups: 0 8 72 [ 38.858137] domain 1: span 0,8-15,72-79 level MC [ 38.868944] groups: 0,8,72 9,73 10,74 11,75 12,76 13,77 14,78 15,79 [ 38.881383] ERROR: parent span is not a superset of domain->span [ 38.890724] domain 2: span 0-7,64-71 level CPU [ 38.899237] ERROR: domain->groups does not contain CPU0 [ 38.909229] groups: 8-15,72-79 [ 38.912547] ERROR: groups don't span domain->span [ 38.919665] domain 3: span 0-127 level NODE [ 38.930739] groups: 0-7,64-71 8-15,72-79 16-23,80-87 24-31,88-95 32-39,96-103 40-47,104-111 48-55,112-119 56-63,120-127 it turns out: we can not use current_cpu_data in phys_pgd_id for x2apic. identify_boot_cpu() is called by check_bugs() before smp_prepare_cpus() and till smp_prepare_cpus() current_cpu_data for bsp is assigned with boot_cpu_data. Just make phys_pkg_id for x2apic is aligned to xapic. Signed-off-by: Yinghai Lu Acked-by: Suresh Siddha Cc: Andrew Morton LKML-Reference: <4A6ADD0D.10002@kernel.org> Signed-off-by: Ingo Molnar --- arch/x86/kernel/apic/x2apic_cluster.c | 2 +- arch/x86/kernel/apic/x2apic_phys.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c index 8e4cbb255c3..2ed4e2bb3b3 100644 --- a/arch/x86/kernel/apic/x2apic_cluster.c +++ b/arch/x86/kernel/apic/x2apic_cluster.c @@ -170,7 +170,7 @@ static unsigned long set_apic_id(unsigned int id) static int x2apic_cluster_phys_pkg_id(int initial_apicid, int index_msb) { - return current_cpu_data.initial_apicid >> index_msb; + return initial_apicid >> index_msb; } static void x2apic_send_IPI_self(int vector) diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c index a284359627e..0b631c6a2e0 100644 --- a/arch/x86/kernel/apic/x2apic_phys.c +++ b/arch/x86/kernel/apic/x2apic_phys.c @@ -162,7 +162,7 @@ static unsigned long set_apic_id(unsigned int id) static int x2apic_phys_pkg_id(int initial_apicid, int index_msb) { - return current_cpu_data.initial_apicid >> index_msb; + return initial_apicid >> index_msb; } static void x2apic_send_IPI_self(int vector) -- cgit v1.2.3 From 6abf65510944d33b47575d151c6b318993c8d2b5 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Thu, 30 Jul 2009 16:49:30 +0100 Subject: x86, 32-bit: Fix double accounting in reserve_top_address() With VMALLOC_END included in the calculation of MAXMEM (as of 2.6.28) it is no longer correct to also bump __VMALLOC_RESERVE in reserve_top_address(). Doing so results in needlessly small lowmem. Signed-off-by: Jan Beulich LKML-Reference: <4A71DD2A020000780000D482@vpn.id2.novell.com> Signed-off-by: Ingo Molnar --- arch/x86/mm/pgtable.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c index af8f9650058..ed34f5e3599 100644 --- a/arch/x86/mm/pgtable.c +++ b/arch/x86/mm/pgtable.c @@ -329,7 +329,6 @@ void __init reserve_top_address(unsigned long reserve) printk(KERN_INFO "Reserving virtual address space above 0x%08x\n", (int)-reserve); __FIXADDR_TOP = -reserve - PAGE_SIZE; - __VMALLOC_RESERVE += reserve; #endif } -- cgit v1.2.3 From 2a5ef41661b56cf4eee042a6967c4e14b63e8eac Mon Sep 17 00:00:00 2001 From: Jack Steiner Date: Mon, 20 Jul 2009 09:28:41 -0500 Subject: x86, UV: Complete IRQ interrupt migration in arch_enable_uv_irq() In uv_setup_irq(), the call to create_irq() initially assigns IRQ vectors to cpu 0. The subsequent call to assign_irq_vector() in arch_enable_uv_irq() migrates the IRQ to another cpu and frees the cpu 0 vector - at least it will be freed as soon as the "IRQ move" completes. arch_enable_uv_irq() needs to send a cleanup IPI to complete the IRQ move. Otherwise, assignment of GRU interrupts on large systems (>200 cpus) will exhaust the cpu 0 interrupt vectors and initialization of the GRU driver will fail. Signed-off-by: Jack Steiner LKML-Reference: <20090720142840.GA8885@sgi.com> Signed-off-by: Ingo Molnar --- arch/x86/kernel/apic/io_apic.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index 2284a4812b6..d2ed6c5ddc8 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -3793,6 +3793,9 @@ int arch_enable_uv_irq(char *irq_name, unsigned int irq, int cpu, int mmr_blade, mmr_pnode = uv_blade_to_pnode(mmr_blade); uv_write_global_mmr64(mmr_pnode, mmr_offset, mmr_value); + if (cfg->move_in_progress) + send_cleanup_vector(cfg); + return irq; } -- cgit v1.2.3 From dc731fbbadf5d65c98fcd6c86472aa286c16458a Mon Sep 17 00:00:00 2001 From: Subrata Modak Date: Tue, 21 Jul 2009 08:02:27 +0530 Subject: x86: Work around compilation warning in arch/x86/kernel/apm_32.c The following fix was initially inspired by David Howells fix few days back: http://lkml.org/lkml/2009/7/9/109 However, Ingo disapproves such fixes as it's dangerous (it can hide future, relevant warnings) - in something as performance-uncritical. So, initialize 'err' to '0' to work around a GCC false positive warning: http://lkml.org/lkml/2009/7/18/89 Signed-off-by: Subrata Modak Cc: Sachin P Sant Cc: David Howells Cc: Balbir Singh Cc: Stephen Rothwell LKML-Reference: <20090721023226.31855.67236.sendpatchset@subratamodak.linux.ibm.com> Signed-off-by: Ingo Molnar --- arch/x86/kernel/apm_32.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c index 79302e9a33a..442b5508893 100644 --- a/arch/x86/kernel/apm_32.c +++ b/arch/x86/kernel/apm_32.c @@ -811,7 +811,7 @@ static int apm_do_idle(void) u8 ret = 0; int idled = 0; int polling; - int err; + int err = 0; polling = !!(current_thread_info()->status & TS_POLLING); if (polling) { -- cgit v1.2.3 From f26542600e605482a1231c44ddb2966d69bd09b0 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 29 Jun 2009 10:40:20 +0200 Subject: perf_counter: Set the CONFIG_PERF_COUNTERS default to y if CONFIG_PROFILING=y If user has already enabled profiling support in the kernel (for oprofile, old-style profiling of ftrace) then offer up perfcounters with a y default in interactive kconfig sessions. Still keep it off by default otherwise. Cc: Peter Zijlstra Cc: Linus Torvalds Signed-off-by: Ingo Molnar --- init/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/init/Kconfig b/init/Kconfig index 823ee0a2d2a..3f7e60995c8 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -940,6 +940,7 @@ menu "Performance Counters" config PERF_COUNTERS bool "Kernel Performance Counters" + default y if PROFILING depends on HAVE_PERF_COUNTERS select ANON_INODES help -- cgit v1.2.3 From 1cef8e41073efe47e809f49670eb461307e52ccc Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 27 Jul 2009 11:30:48 +0530 Subject: mfd: twl4030 irq fixes The TWL4030 IRQ handler has a bug which leads to spinlock lock-up. It is calling the 'unmask' function in a process context. :The mask/unmask/ack functions are only designed to be called from the IRQ handler code, or the proper API interfaces found in linux/interrupt.h. Also there is no need to have IRQ chaining mechanism. The right way to handle this is to claim the parent interrupt as a standard interrupt and arrange for handle_twl4030_pih to take care of the rest of the devices. Mail thread on this issue can be found at: http://marc.info/?l=linux-arm-kernel&m=124629940123396&w=2 Signed-off-by: Russell King Tested-by: Santosh Shilimkar Acked-by: Tony Lindgren Signed-off-by: Samuel Ortiz --- drivers/mfd/twl4030-irq.c | 55 +++++++++++++++++++++-------------------------- 1 file changed, 24 insertions(+), 31 deletions(-) diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c index bae61b22501..7d430835655 100644 --- a/drivers/mfd/twl4030-irq.c +++ b/drivers/mfd/twl4030-irq.c @@ -180,14 +180,9 @@ static struct completion irq_event; static int twl4030_irq_thread(void *data) { long irq = (long)data; - struct irq_desc *desc = irq_to_desc(irq); static unsigned i2c_errors; static const unsigned max_i2c_errors = 100; - if (!desc) { - pr_err("twl4030: Invalid IRQ: %ld\n", irq); - return -EINVAL; - } current->flags |= PF_NOFREEZE; @@ -240,7 +235,7 @@ static int twl4030_irq_thread(void *data) } local_irq_enable(); - desc->chip->unmask(irq); + enable_irq(irq); } return 0; @@ -255,25 +250,13 @@ static int twl4030_irq_thread(void *data) * thread. All we do here is acknowledge and mask the interrupt and wakeup * the kernel thread. */ -static void handle_twl4030_pih(unsigned int irq, struct irq_desc *desc) +static irqreturn_t handle_twl4030_pih(int irq, void *devid) { /* Acknowledge, clear *AND* mask the interrupt... */ - desc->chip->ack(irq); - complete(&irq_event); -} - -static struct task_struct *start_twl4030_irq_thread(long irq) -{ - struct task_struct *thread; - - init_completion(&irq_event); - thread = kthread_run(twl4030_irq_thread, (void *)irq, "twl4030-irq"); - if (!thread) - pr_err("twl4030: could not create irq %ld thread!\n", irq); - - return thread; + disable_irq_nosync(irq); + complete(devid); + return IRQ_HANDLED; } - /*----------------------------------------------------------------------*/ /* @@ -734,18 +717,28 @@ int twl_init_irq(int irq_num, unsigned irq_base, unsigned irq_end) } /* install an irq handler to demultiplex the TWL4030 interrupt */ - task = start_twl4030_irq_thread(irq_num); - if (!task) { - pr_err("twl4030: irq thread FAIL\n"); - status = -ESRCH; - goto fail; - } - set_irq_data(irq_num, task); - set_irq_chained_handler(irq_num, handle_twl4030_pih); - return status; + init_completion(&irq_event); + status = request_irq(irq_num, handle_twl4030_pih, IRQF_DISABLED, + "TWL4030-PIH", &irq_event); + if (status < 0) { + pr_err("twl4030: could not claim irq%d: %d\n", irq_num, status); + goto fail_rqirq; + } + + task = kthread_run(twl4030_irq_thread, (void *)irq_num, "twl4030-irq"); + if (IS_ERR(task)) { + pr_err("twl4030: could not create irq %d thread!\n", irq_num); + status = PTR_ERR(task); + goto fail_kthread; + } + return status; +fail_kthread: + free_irq(irq_num, &irq_event); +fail_rqirq: + /* clean up twl4030_sih_setup */ fail: for (i = irq_base; i < irq_end; i++) set_irq_chip_and_handler(i, NULL, NULL); -- cgit v1.2.3 From 26d204afa18f7df177f21bdb3759e0098ca8f7d5 Mon Sep 17 00:00:00 2001 From: "Pallipadi, Venkatesh" Date: Wed, 29 Jul 2009 13:36:10 -0700 Subject: [CPUFREQ] Fix NULL pointer dereference regression in conservative governor Commit ee88415caf736b89500f16e0a545614541a45005 introduced this regression when it removed enable bit in cpu_dbs_info_s. That added a possibility of dbs_cpufreq_notifier getting called for a CPU that is not yet managed by conservative governor. That will happen as the transition notifier is set as soon as one CPU switches to conservative governor and other CPUs can get a NULL pointer dereference without the enable bit check. Add the enable bit back again. Reported-by: Lermytte Christophe Signed-off-by: Venkatesh Pallipadi Signed-off-by: Dave Jones --- drivers/cpufreq/cpufreq_conservative.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c index 57490502b21..bdea7e2f94b 100644 --- a/drivers/cpufreq/cpufreq_conservative.c +++ b/drivers/cpufreq/cpufreq_conservative.c @@ -63,6 +63,7 @@ struct cpu_dbs_info_s { unsigned int down_skip; unsigned int requested_freq; int cpu; + unsigned int enable:1; /* * percpu mutex that serializes governor limit change with * do_dbs_timer invocation. We do not want do_dbs_timer to run @@ -141,6 +142,9 @@ dbs_cpufreq_notifier(struct notifier_block *nb, unsigned long val, struct cpufreq_policy *policy; + if (!this_dbs_info->enable) + return 0; + policy = this_dbs_info->cur_policy; /* @@ -497,6 +501,7 @@ static inline void dbs_timer_init(struct cpu_dbs_info_s *dbs_info) int delay = usecs_to_jiffies(dbs_tuners_ins.sampling_rate); delay -= jiffies % delay; + dbs_info->enable = 1; INIT_DELAYED_WORK_DEFERRABLE(&dbs_info->work, do_dbs_timer); queue_delayed_work_on(dbs_info->cpu, kconservative_wq, &dbs_info->work, delay); @@ -504,6 +509,7 @@ static inline void dbs_timer_init(struct cpu_dbs_info_s *dbs_info) static inline void dbs_timer_exit(struct cpu_dbs_info_s *dbs_info) { + dbs_info->enable = 0; cancel_delayed_work_sync(&dbs_info->work); } -- cgit v1.2.3 From 42c74b84c64633dd3badbfc2abd2ef1728b64b30 Mon Sep 17 00:00:00 2001 From: Prarit Bhargava Date: Mon, 3 Aug 2009 10:58:11 -0400 Subject: [CPUFREQ] Do not set policy for offline cpus Suspend/Resume fails on multi socket, multi core systems because the cpufreq code erroneously sets the per_cpu policy_cpu value when a logical cpu is offline. This most notably results in missing sysfs files that are used to set the cpu frequencies of the various cpus. Signed-off-by: Prarit Bhargava Signed-off-by: Dave Jones --- drivers/cpufreq/cpufreq.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index b90eda8b344..120d236c0ff 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -924,6 +924,8 @@ static int cpufreq_add_dev(struct sys_device *sys_dev) spin_lock_irqsave(&cpufreq_driver_lock, flags); for_each_cpu(j, policy->cpus) { + if (!cpu_online(j)) + continue; per_cpu(cpufreq_cpu_data, j) = policy; per_cpu(policy_cpu, j) = policy->cpu; } -- cgit v1.2.3 From d5194decd0a6f792b2789eebd4ddf022a248f655 Mon Sep 17 00:00:00 2001 From: Thomas Renninger Date: Wed, 29 Jul 2009 11:26:20 +0200 Subject: [CPUFREQ] Fix a kobject reference bug related to managed CPUs The first offline/online cycle is successful, the second not. Doing: echo 0 >cpu1/online echo 1 >cpu1/online echo 0 >cpu1/online The last command will trigger: Jul 22 14:39:50 linux kernel: [ 593.210125] ------------[ cut here ]------------ Jul 22 14:39:50 linux kernel: [ 593.210139] WARNING: at lib/kref.c:43 kref_get+0x23/0x2b() Jul 22 14:39:50 linux kernel: [ 593.210144] Hardware name: To Be Filled By O.E.M. Jul 22 14:39:50 linux kernel: [ 593.210148] Modules linked in: powernow_k8 Jul 22 14:39:50 linux kernel: [ 593.210158] Pid: 378, comm: kondemand/2 Tainted: G W 2.6.31-rc2 #38 Jul 22 14:39:50 linux kernel: [ 593.210163] Call Trace: Jul 22 14:39:50 linux kernel: [ 593.210171] [] ? kref_get+0x23/0x2b Jul 22 14:39:50 linux kernel: [ 593.210181] [] warn_slowpath_common+0x77/0xa4 Jul 22 14:39:50 linux kernel: [ 593.210190] [] warn_slowpath_null+0xf/0x11 Jul 22 14:39:50 linux kernel: [ 593.210198] [] kref_get+0x23/0x2b Jul 22 14:39:50 linux kernel: [ 593.210206] [] kobject_get+0x1a/0x22 Jul 22 14:39:50 linux kernel: [ 593.210214] [] cpufreq_cpu_get+0x8a/0xcb Jul 22 14:39:50 linux kernel: [ 593.210222] [] __cpufreq_driver_getavg+0x1d/0x67 Jul 22 14:39:50 linux kernel: [ 593.210231] [] do_dbs_timer+0x158/0x27f Jul 22 14:39:50 linux kernel: [ 593.210240] [] worker_thread+0x200/0x313 ... The output continues on every do_dbs_timer ondemand freq checking poll. This regression was introduced by git commit: 3f4a782b5ce2698b1870b5a7b573cd721d4fce33 The policy is released when the cpufreq device is removed in: __cpufreq_remove_dev(): /* if this isn't the CPU which is the parent of the kobj, we * only need to unlink, put and exit */ Not creating the symlink is not sever at all. As long as: sysfs_remove_link(&sys_dev->kobj, "cpufreq"); handles it gracefully that the symlink did not exist. Possibly no error should be returned at all, because ondemand governor would still provide the same functionality. Userspace in userspace gov case might be confused if the link is missing. Resolves http://bugzilla.kernel.org/show_bug.cgi?id=13903 CC: Mathieu Desnoyers CC: Venkatesh Pallipadi Signed-off-by: Thomas Renninger Signed-off-by: Dave Jones --- drivers/cpufreq/cpufreq.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 120d236c0ff..bd74a0b1217 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -858,6 +858,8 @@ static int cpufreq_add_dev(struct sys_device *sys_dev) /* Check for existing affected CPUs. * They may not be aware of it due to CPU Hotplug. + * cpufreq_cpu_put is called when the device is removed + * in __cpufreq_remove_dev() */ managed_policy = cpufreq_cpu_get(j); if (unlikely(managed_policy)) { @@ -884,7 +886,7 @@ static int cpufreq_add_dev(struct sys_device *sys_dev) ret = sysfs_create_link(&sys_dev->kobj, &managed_policy->kobj, "cpufreq"); - if (!ret) + if (ret) cpufreq_cpu_put(managed_policy); /* * Success. We only needed to be added to the mask. -- cgit v1.2.3 From 4bc5d34135039566b8d6efa2de7515b2be505da8 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Tue, 4 Aug 2009 14:03:25 -0400 Subject: [CPUFREQ] Make cpufreq suspend code conditional on powerpc. The suspend code runs with interrupts disabled, and the powerpc workaround we do in the cpufreq suspend hook calls the drivers ->get method. powernow-k8's ->get does an smp_call_function_single which needs interrupts enabled cpufreq's suspend/resume code was added in 42d4dc3f4e1e to work around a hardware problem on ppc powerbooks. If we make all this code conditional on powerpc, we avoid the issue above. Signed-off-by: Dave Jones --- drivers/cpufreq/cpufreq.c | 21 +++++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-) diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index bd74a0b1217..fd69086d08d 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1248,13 +1248,22 @@ EXPORT_SYMBOL(cpufreq_get); static int cpufreq_suspend(struct sys_device *sysdev, pm_message_t pmsg) { - int cpu = sysdev->id; int ret = 0; + +#ifdef __powerpc__ + int cpu = sysdev->id; unsigned int cur_freq = 0; struct cpufreq_policy *cpu_policy; dprintk("suspending cpu %u\n", cpu); + /* + * This whole bogosity is here because Powerbooks are made of fail. + * No sane platform should need any of the code below to be run. + * (it's entirely the wrong thing to do, as driver->get may + * reenable interrupts on some architectures). + */ + if (!cpu_online(cpu)) return 0; @@ -1313,6 +1322,7 @@ static int cpufreq_suspend(struct sys_device *sysdev, pm_message_t pmsg) out: cpufreq_cpu_put(cpu_policy); +#endif /* __powerpc__ */ return ret; } @@ -1326,12 +1336,18 @@ out: */ static int cpufreq_resume(struct sys_device *sysdev) { - int cpu = sysdev->id; int ret = 0; + +#ifdef __powerpc__ + int cpu = sysdev->id; struct cpufreq_policy *cpu_policy; dprintk("resuming cpu %u\n", cpu); + /* As with the ->suspend method, all the code below is + * only necessary because Powerbooks suck. + * See commit 42d4dc3f4e1e for jokes. */ + if (!cpu_online(cpu)) return 0; @@ -1395,6 +1411,7 @@ out: schedule_work(&cpu_policy->update); fail: cpufreq_cpu_put(cpu_policy); +#endif /* __powerpc__ */ return ret; } -- cgit v1.2.3 From 14d9fa352592582e457cf75022202766baac1348 Mon Sep 17 00:00:00 2001 From: John Stoffel Date: Tue, 4 Aug 2009 22:10:17 +0200 Subject: Make SCSI SG v4 driver enabled by default and remove EXPERIMENTAL dependency, since udev depends on BSG Make Block Layer SG support v4 the default, since recent udev versions depend on this to access serial numbers and other low level info properly. This should be backported to older kernels as well, since most distros have enabled this for a long time. Signed-off-by: John Stoffel Cc: stable@kernel.org Signed-off-by: Jens Axboe --- block/Kconfig | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/block/Kconfig b/block/Kconfig index 95a86adc33a..9be0b56eaee 100644 --- a/block/Kconfig +++ b/block/Kconfig @@ -48,9 +48,9 @@ config LBDAF If unsure, say Y. config BLK_DEV_BSG - bool "Block layer SG support v4 (EXPERIMENTAL)" - depends on EXPERIMENTAL - ---help--- + bool "Block layer SG support v4" + default y + help Saying Y here will enable generic SG (SCSI generic) v4 support for any block device. @@ -60,7 +60,10 @@ config BLK_DEV_BSG protocols (e.g. Task Management Functions and SMP in Serial Attached SCSI). - If unsure, say N. + This option is required by recent UDEV versions to properly + access device serial numbers, etc. + + If unsure, say Y. config BLK_DEV_INTEGRITY bool "Block layer data integrity support" -- cgit v1.2.3 From 18eac1cc100fa2afd5f39085aae6b694e417734b Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 3 Aug 2009 10:58:29 -0700 Subject: tty-ldisc: make refcount be atomic_t 'users' count This is pure preparation of changing the ldisc reference counting to be a true refcount that defines the lifetime of the ldisc. But this is a purely syntactic change for now to make the next steps easier. This patch should make no semantic changes at all. But I wanted to make the ldisc refcount be an atomic (I will be touching it without locks soon enough), and I wanted to rename it so that there isn't quite as much confusion between 'ldo->refcount' (ldisk operations refcount) and 'ld->refcount' (ldisc refcount itself) in the same file. So it's now an atomic 'ld->users' count. It still starts at zero, despite having a reference from 'tty->ldisc', but that will change once we turn it into a _real_ refcount. Signed-off-by: Linus Torvalds Tested-by: OGAWA Hirofumi Tested-by: Sergey Senozhatsky Acked-by: Alan Cox Signed-off-by: Greg Kroah-Hartman --- drivers/char/tty_ldisc.c | 18 ++++++++---------- include/linux/tty_ldisc.h | 2 +- 2 files changed, 9 insertions(+), 11 deletions(-) diff --git a/drivers/char/tty_ldisc.c b/drivers/char/tty_ldisc.c index acd76b767d4..fd175e60aad 100644 --- a/drivers/char/tty_ldisc.c +++ b/drivers/char/tty_ldisc.c @@ -142,7 +142,7 @@ static struct tty_ldisc *tty_ldisc_try_get(int disc) /* lock it */ ldops->refcount++; ld->ops = ldops; - ld->refcount = 0; + atomic_set(&ld->users, 0); err = 0; } } @@ -206,7 +206,7 @@ static void tty_ldisc_put(struct tty_ldisc *ld) ldo->refcount--; module_put(ldo->owner); spin_unlock_irqrestore(&tty_ldisc_lock, flags); - WARN_ON(ld->refcount); + WARN_ON(atomic_read(&ld->users)); kfree(ld); } @@ -297,7 +297,7 @@ static int tty_ldisc_try(struct tty_struct *tty) spin_lock_irqsave(&tty_ldisc_lock, flags); ld = tty->ldisc; if (test_bit(TTY_LDISC, &tty->flags)) { - ld->refcount++; + atomic_inc(&ld->users); ret = 1; } spin_unlock_irqrestore(&tty_ldisc_lock, flags); @@ -324,7 +324,7 @@ struct tty_ldisc *tty_ldisc_ref_wait(struct tty_struct *tty) { /* wait_event is a macro */ wait_event(tty_ldisc_wait, tty_ldisc_try(tty)); - WARN_ON(tty->ldisc->refcount == 0); + WARN_ON(atomic_read(&tty->ldisc->users) == 0); return tty->ldisc; } EXPORT_SYMBOL_GPL(tty_ldisc_ref_wait); @@ -365,11 +365,9 @@ void tty_ldisc_deref(struct tty_ldisc *ld) BUG_ON(ld == NULL); spin_lock_irqsave(&tty_ldisc_lock, flags); - if (ld->refcount == 0) + if (atomic_read(&ld->users) == 0) printk(KERN_ERR "tty_ldisc_deref: no references.\n"); - else - ld->refcount--; - if (ld->refcount == 0) + else if (atomic_dec_and_test(&ld->users)) wake_up(&tty_ldisc_wait); spin_unlock_irqrestore(&tty_ldisc_lock, flags); } @@ -536,10 +534,10 @@ static int tty_ldisc_wait_idle(struct tty_struct *tty) { unsigned long flags; spin_lock_irqsave(&tty_ldisc_lock, flags); - while (tty->ldisc->refcount) { + while (atomic_read(&tty->ldisc->users)) { spin_unlock_irqrestore(&tty_ldisc_lock, flags); if (wait_event_timeout(tty_ldisc_wait, - tty->ldisc->refcount == 0, 5 * HZ) == 0) + atomic_read(&tty->ldisc->users) == 0, 5 * HZ) == 0) return -EBUSY; spin_lock_irqsave(&tty_ldisc_lock, flags); } diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h index 40f38d89677..0c4ee9b88f8 100644 --- a/include/linux/tty_ldisc.h +++ b/include/linux/tty_ldisc.h @@ -144,7 +144,7 @@ struct tty_ldisc_ops { struct tty_ldisc { struct tty_ldisc_ops *ops; - int refcount; + atomic_t users; }; #define TTY_LDISC_MAGIC 0x5403 -- cgit v1.2.3 From 65b770468e98941e45e19780dff9283e663e6b8b Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 3 Aug 2009 11:11:19 -0700 Subject: tty-ldisc: turn ldisc user count into a proper refcount By using the user count for the actual lifetime rules, we can get rid of the silly "wait_for_idle" logic, because any busy ldisc will automatically stay around until the last user releases it. This avoids a host of odd issues, and simplifies the code. So now, when the last ldisc reference is dropped, we just release the ldisc operations struct reference, and free the ldisc. It looks obvious enough, and it does work for me, but the counting _could_ be off. It probably isn't (bad counting in the new version would generally imply that the old code did something really bad, like free an ldisc with a non-zero count), but it does need some testing, and preferably somebody looking at it. With this change, both 'tty_ldisc_put()' and 'tty_ldisc_deref()' are just aliases for the new ref-counting 'put_ldisc()'. Both of them decrement the ldisc user count and free it if it goes down to zero. They're identical functions, in other words. But the reason they still exist as sepate functions is that one of them was exported (tty_ldisc_deref) and had a stupid name (so I don't want to use it as the main name), and the other one was used in multiple places (and I didn't want to make the patch larger just to rename the users). In addition to the refcounting, I did do some minimal cleanup. For example, now "tty_ldisc_try()" actually returns the ldisc it got under the lock, rather than returning true/false and then the caller would look up the ldisc again (now without the protection of the lock). That said, there's tons of dubious use of 'tty->ldisc' without obviously proper locking or refcounting left. I expressly did _not_ want to try to fix it all, keeping the patch minimal. There may or may not be bugs in that kind of code, but they wouldn't be _new_ bugs. That said, even if the bugs aren't new, the timing and lifetime will change. For example, some silly code may depend on the 'tty->ldisc' pointer not changing because they hold a refcount on the 'ldisc'. And that's no longer true - if you hold a ref on the ldisc, the 'ldisc' itself is safe, but tty->ldisc may change. So the proper locking (remains) to hold tty->ldisc_mutex if you expect tty->ldisc to be stable. That's not really a _new_ rule, but it's an example of something that the old code might have unintentionally depended on and hidden bugs. Whatever. The patch _looks_ sensible to me. The only users of ldisc->users are: - get_ldisc() - atomically increment the count - put_ldisc() - atomically decrements the count and releases if zero - tty_ldisc_try_get() - creates the ldisc, and sets the count to 1. The ldisc should then either be released, or be attached to a tty. Signed-off-by: Linus Torvalds Tested-by: OGAWA Hirofumi Tested-by: Sergey Senozhatsky Acked-by: Alan Cox Signed-off-by: Greg Kroah-Hartman --- drivers/char/tty_ldisc.c | 143 +++++++++++++++-------------------------------- 1 file changed, 46 insertions(+), 97 deletions(-) diff --git a/drivers/char/tty_ldisc.c b/drivers/char/tty_ldisc.c index fd175e60aad..be55dfcf59a 100644 --- a/drivers/char/tty_ldisc.c +++ b/drivers/char/tty_ldisc.c @@ -48,6 +48,34 @@ static DECLARE_WAIT_QUEUE_HEAD(tty_ldisc_wait); /* Line disc dispatch table */ static struct tty_ldisc_ops *tty_ldiscs[NR_LDISCS]; +static inline struct tty_ldisc *get_ldisc(struct tty_ldisc *ld) +{ + if (ld) + atomic_inc(&ld->users); + return ld; +} + +static inline void put_ldisc(struct tty_ldisc *ld) +{ + if (WARN_ON_ONCE(!ld)) + return; + + /* + * If this is the last user, free the ldisc, and + * release the ldisc ops. + */ + if (atomic_dec_and_test(&ld->users)) { + unsigned long flags; + struct tty_ldisc_ops *ldo = ld->ops; + + kfree(ld); + spin_lock_irqsave(&tty_ldisc_lock, flags); + ldo->refcount--; + module_put(ldo->owner); + spin_unlock_irqrestore(&tty_ldisc_lock, flags); + } +} + /** * tty_register_ldisc - install a line discipline * @disc: ldisc number @@ -142,7 +170,7 @@ static struct tty_ldisc *tty_ldisc_try_get(int disc) /* lock it */ ldops->refcount++; ld->ops = ldops; - atomic_set(&ld->users, 0); + atomic_set(&ld->users, 1); err = 0; } } @@ -181,35 +209,6 @@ static struct tty_ldisc *tty_ldisc_get(int disc) return ld; } -/** - * tty_ldisc_put - drop ldisc reference - * @ld: ldisc - * - * Drop a reference to a line discipline. Manage refcounts and - * module usage counts. Free the ldisc once the recount hits zero. - * - * Locking: - * takes tty_ldisc_lock to guard against ldisc races - */ - -static void tty_ldisc_put(struct tty_ldisc *ld) -{ - unsigned long flags; - int disc = ld->ops->num; - struct tty_ldisc_ops *ldo; - - BUG_ON(disc < N_TTY || disc >= NR_LDISCS); - - spin_lock_irqsave(&tty_ldisc_lock, flags); - ldo = tty_ldiscs[disc]; - BUG_ON(ldo->refcount == 0); - ldo->refcount--; - module_put(ldo->owner); - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - WARN_ON(atomic_read(&ld->users)); - kfree(ld); -} - static void *tty_ldiscs_seq_start(struct seq_file *m, loff_t *pos) { return (*pos < NR_LDISCS) ? pos : NULL; @@ -234,7 +233,7 @@ static int tty_ldiscs_seq_show(struct seq_file *m, void *v) if (IS_ERR(ld)) return 0; seq_printf(m, "%-10s %2d\n", ld->ops->name ? ld->ops->name : "???", i); - tty_ldisc_put(ld); + put_ldisc(ld); return 0; } @@ -288,20 +287,17 @@ static void tty_ldisc_assign(struct tty_struct *tty, struct tty_ldisc *ld) * Locking: takes tty_ldisc_lock */ -static int tty_ldisc_try(struct tty_struct *tty) +static struct tty_ldisc *tty_ldisc_try(struct tty_struct *tty) { unsigned long flags; struct tty_ldisc *ld; - int ret = 0; spin_lock_irqsave(&tty_ldisc_lock, flags); - ld = tty->ldisc; - if (test_bit(TTY_LDISC, &tty->flags)) { - atomic_inc(&ld->users); - ret = 1; - } + ld = NULL; + if (test_bit(TTY_LDISC, &tty->flags)) + ld = get_ldisc(tty->ldisc); spin_unlock_irqrestore(&tty_ldisc_lock, flags); - return ret; + return ld; } /** @@ -322,10 +318,11 @@ static int tty_ldisc_try(struct tty_struct *tty) struct tty_ldisc *tty_ldisc_ref_wait(struct tty_struct *tty) { + struct tty_ldisc *ld; + /* wait_event is a macro */ - wait_event(tty_ldisc_wait, tty_ldisc_try(tty)); - WARN_ON(atomic_read(&tty->ldisc->users) == 0); - return tty->ldisc; + wait_event(tty_ldisc_wait, (ld = tty_ldisc_try(tty)) != NULL); + return ld; } EXPORT_SYMBOL_GPL(tty_ldisc_ref_wait); @@ -342,9 +339,7 @@ EXPORT_SYMBOL_GPL(tty_ldisc_ref_wait); struct tty_ldisc *tty_ldisc_ref(struct tty_struct *tty) { - if (tty_ldisc_try(tty)) - return tty->ldisc; - return NULL; + return tty_ldisc_try(tty); } EXPORT_SYMBOL_GPL(tty_ldisc_ref); @@ -360,19 +355,15 @@ EXPORT_SYMBOL_GPL(tty_ldisc_ref); void tty_ldisc_deref(struct tty_ldisc *ld) { - unsigned long flags; - - BUG_ON(ld == NULL); - - spin_lock_irqsave(&tty_ldisc_lock, flags); - if (atomic_read(&ld->users) == 0) - printk(KERN_ERR "tty_ldisc_deref: no references.\n"); - else if (atomic_dec_and_test(&ld->users)) - wake_up(&tty_ldisc_wait); - spin_unlock_irqrestore(&tty_ldisc_lock, flags); + put_ldisc(ld); } EXPORT_SYMBOL_GPL(tty_ldisc_deref); +static inline void tty_ldisc_put(struct tty_ldisc *ld) +{ + put_ldisc(ld); +} + /** * tty_ldisc_enable - allow ldisc use * @tty: terminal to activate ldisc on @@ -520,31 +511,6 @@ static int tty_ldisc_halt(struct tty_struct *tty) return cancel_delayed_work(&tty->buf.work); } -/** - * tty_ldisc_wait_idle - wait for the ldisc to become idle - * @tty: tty to wait for - * - * Wait for the line discipline to become idle. The discipline must - * have been halted for this to guarantee it remains idle. - * - * tty_ldisc_lock protects the ref counts currently. - */ - -static int tty_ldisc_wait_idle(struct tty_struct *tty) -{ - unsigned long flags; - spin_lock_irqsave(&tty_ldisc_lock, flags); - while (atomic_read(&tty->ldisc->users)) { - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - if (wait_event_timeout(tty_ldisc_wait, - atomic_read(&tty->ldisc->users) == 0, 5 * HZ) == 0) - return -EBUSY; - spin_lock_irqsave(&tty_ldisc_lock, flags); - } - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - return 0; -} - /** * tty_set_ldisc - set line discipline * @tty: the terminal to set @@ -640,14 +606,6 @@ int tty_set_ldisc(struct tty_struct *tty, int ldisc) flush_scheduled_work(); - /* Let any existing reference holders finish */ - retval = tty_ldisc_wait_idle(tty); - if (retval < 0) { - clear_bit(TTY_LDISC_CHANGING, &tty->flags); - tty_ldisc_put(new_ldisc); - return retval; - } - mutex_lock(&tty->ldisc_mutex); if (test_bit(TTY_HUPPED, &tty->flags)) { /* We were raced by the hangup method. It will have stomped @@ -793,7 +751,6 @@ void tty_ldisc_hangup(struct tty_struct *tty) if (tty->ldisc) { /* Not yet closed */ /* Switch back to N_TTY */ tty_ldisc_halt(tty); - tty_ldisc_wait_idle(tty); tty_ldisc_reinit(tty); /* At this point we have a closed ldisc and we want to reopen it. We could defer this to the next open but @@ -858,14 +815,6 @@ void tty_ldisc_release(struct tty_struct *tty, struct tty_struct *o_tty) tty_ldisc_halt(tty); flush_scheduled_work(); - /* - * Wait for any short term users (we know they are just driver - * side waiters as the file is closing so user count on the file - * side is zero. - */ - - tty_ldisc_wait_idle(tty); - mutex_lock(&tty->ldisc_mutex); /* * Now kill off the ldisc -- cgit v1.2.3 From cbe9352fa08f90aa03b4dbf1bbabfc95d196e562 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 3 Aug 2009 14:54:56 -0700 Subject: tty-ldisc: be more careful in 'put_ldisc' locking Use 'atomic_dec_and_lock()' to make sure that we always hold the tty_ldisc_lock when the ldisc count goes to zero. That way we can never race against 'tty_ldisc_try()' increasing the count again. Reported-by: OGAWA Hirofumi Signed-off-by: Linus Torvalds Tested-by: Sergey Senozhatsky Signed-off-by: Greg Kroah-Hartman --- drivers/char/tty_ldisc.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/char/tty_ldisc.c b/drivers/char/tty_ldisc.c index be55dfcf59a..1733d3439ad 100644 --- a/drivers/char/tty_ldisc.c +++ b/drivers/char/tty_ldisc.c @@ -55,25 +55,32 @@ static inline struct tty_ldisc *get_ldisc(struct tty_ldisc *ld) return ld; } -static inline void put_ldisc(struct tty_ldisc *ld) +static void put_ldisc(struct tty_ldisc *ld) { + unsigned long flags; + if (WARN_ON_ONCE(!ld)) return; /* * If this is the last user, free the ldisc, and * release the ldisc ops. + * + * We really want an "atomic_dec_and_lock_irqsave()", + * but we don't have it, so this does it by hand. */ - if (atomic_dec_and_test(&ld->users)) { - unsigned long flags; + local_irq_save(flags); + if (atomic_dec_and_lock(&ld->users, &tty_ldisc_lock)) { struct tty_ldisc_ops *ldo = ld->ops; - kfree(ld); - spin_lock_irqsave(&tty_ldisc_lock, flags); ldo->refcount--; module_put(ldo->owner); spin_unlock_irqrestore(&tty_ldisc_lock, flags); + + kfree(ld); + return; } + local_irq_restore(flags); } /** -- cgit v1.2.3 From 07868201070d87484bd00610a4921e879be78746 Mon Sep 17 00:00:00 2001 From: Jonathan Corbet Date: Tue, 4 Aug 2009 13:35:17 -0600 Subject: flex_array: remove unneeded index calculation flex_array_get() calculates an index value, then drops it on the floor; simply remove it. Signed-off-by: Jonathan Corbet Acked-by: Dave Hansen Signed-off-by: Linus Torvalds --- lib/flex_array.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/lib/flex_array.c b/lib/flex_array.c index 0e7894ce888..08f1636d296 100644 --- a/lib/flex_array.c +++ b/lib/flex_array.c @@ -254,7 +254,6 @@ void *flex_array_get(struct flex_array *fa, int element_nr) { int part_nr = fa_element_to_part_nr(fa, element_nr); struct flex_array_part *part; - int index; if (element_nr >= fa->total_nr_elements) return NULL; @@ -264,6 +263,5 @@ void *flex_array_get(struct flex_array *fa, int element_nr) part = (struct flex_array_part *)&fa->parts[0]; else part = fa->parts[part_nr]; - index = index_inside_part(fa, element_nr); return &part->elements[index_inside_part(fa, element_nr)]; } -- cgit v1.2.3 From 6502fbfaf81b09b3f474bb7b3796257e9450273e Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 4 Aug 2009 11:24:24 -0400 Subject: drm/radeon: Add support for RS880 chips These are new AMD IGP chips Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r600_cp.c | 22 +++++++++++++++------- drivers/gpu/drm/radeon/radeon_drv.h | 1 + include/drm/drm_pciids.h | 5 +++++ 3 files changed, 21 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/radeon/r600_cp.c b/drivers/gpu/drm/radeon/r600_cp.c index 146f3570af8..20f17908b03 100644 --- a/drivers/gpu/drm/radeon/r600_cp.c +++ b/drivers/gpu/drm/radeon/r600_cp.c @@ -384,8 +384,9 @@ static void r600_cp_load_microcode(drm_radeon_private_t *dev_priv) DRM_INFO("Loading RV670 PFP Microcode\n"); for (i = 0; i < PFP_UCODE_SIZE; i++) RADEON_WRITE(R600_CP_PFP_UCODE_DATA, RV670_pfp_microcode[i]); - } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS780)) { - DRM_INFO("Loading RS780 CP Microcode\n"); + } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS780) || + ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS880)) { + DRM_INFO("Loading RS780/RS880 CP Microcode\n"); for (i = 0; i < PM4_UCODE_SIZE; i++) { RADEON_WRITE(R600_CP_ME_RAM_DATA, RS780_cp_microcode[i][0]); @@ -396,7 +397,7 @@ static void r600_cp_load_microcode(drm_radeon_private_t *dev_priv) } RADEON_WRITE(R600_CP_PFP_UCODE_ADDR, 0); - DRM_INFO("Loading RS780 PFP Microcode\n"); + DRM_INFO("Loading RS780/RS880 PFP Microcode\n"); for (i = 0; i < PFP_UCODE_SIZE; i++) RADEON_WRITE(R600_CP_PFP_UCODE_DATA, RS780_pfp_microcode[i]); } @@ -783,6 +784,7 @@ static void r600_gfx_init(struct drm_device *dev, break; case CHIP_RV610: case CHIP_RS780: + case CHIP_RS880: case CHIP_RV620: dev_priv->r600_max_pipes = 1; dev_priv->r600_max_tile_pipes = 1; @@ -917,7 +919,8 @@ static void r600_gfx_init(struct drm_device *dev, ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV630) || ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV610) || ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV620) || - ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS780)) + ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS780) || + ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS880)) RADEON_WRITE(R600_DB_DEBUG, R600_PREZ_MUST_WAIT_FOR_POSTZ_DONE); else RADEON_WRITE(R600_DB_DEBUG, 0); @@ -935,7 +938,8 @@ static void r600_gfx_init(struct drm_device *dev, sq_ms_fifo_sizes = RADEON_READ(R600_SQ_MS_FIFO_SIZES); if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV610) || ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV620) || - ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS780)) { + ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS780) || + ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS880)) { sq_ms_fifo_sizes = (R600_CACHE_FIFO_SIZE(0xa) | R600_FETCH_FIFO_HIWATER(0xa) | R600_DONE_FIFO_HIWATER(0xe0) | @@ -978,7 +982,8 @@ static void r600_gfx_init(struct drm_device *dev, R600_NUM_ES_STACK_ENTRIES(0)); } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV610) || ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV620) || - ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS780)) { + ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS780) || + ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS880)) { /* no vertex cache */ sq_config &= ~R600_VC_ENABLE; @@ -1035,7 +1040,8 @@ static void r600_gfx_init(struct drm_device *dev, if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV610) || ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV620) || - ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS780)) + ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS780) || + ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS880)) RADEON_WRITE(R600_VGT_CACHE_INVALIDATION, R600_CACHE_INVALIDATION(R600_TC_ONLY)); else RADEON_WRITE(R600_VGT_CACHE_INVALIDATION, R600_CACHE_INVALIDATION(R600_VC_AND_TC)); @@ -1078,6 +1084,7 @@ static void r600_gfx_init(struct drm_device *dev, break; case CHIP_RV610: case CHIP_RS780: + case CHIP_RS880: case CHIP_RV620: gs_prim_buffer_depth = 32; break; @@ -1123,6 +1130,7 @@ static void r600_gfx_init(struct drm_device *dev, switch (dev_priv->flags & RADEON_FAMILY_MASK) { case CHIP_RV610: case CHIP_RS780: + case CHIP_RS880: case CHIP_RV620: tc_cntl = R600_TC_L2_SIZE(8); break; diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h index 127d0456f62..3933f8216a3 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.h +++ b/drivers/gpu/drm/radeon/radeon_drv.h @@ -143,6 +143,7 @@ enum radeon_family { CHIP_RV635, CHIP_RV670, CHIP_RS780, + CHIP_RS880, CHIP_RV770, CHIP_RV730, CHIP_RV710, diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h index 9d4c0049154..853508499d2 100644 --- a/include/drm/drm_pciids.h +++ b/include/drm/drm_pciids.h @@ -370,6 +370,11 @@ {0x1002, 0x9614, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS780|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ {0x1002, 0x9615, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS780|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ {0x1002, 0x9616, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS780|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ + {0x1002, 0x9710, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS880|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ + {0x1002, 0x9711, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS880|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ + {0x1002, 0x9712, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS880|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ + {0x1002, 0x9713, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS880|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ + {0x1002, 0x9714, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS880|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ {0, 0, 0} #define r128_PCI_IDS \ -- cgit v1.2.3 From 685aaca751271b2c5191901931a19ccaceeae1ce Mon Sep 17 00:00:00 2001 From: "Jory A. Pratt" Date: Mon, 3 Aug 2009 09:32:34 -0700 Subject: Input: i8042 - add Asus G1S to noloop exception list The synaptic touchpad on the Asus G1S is not properly detected when rebooting machine or on cold boot from time to time. Adding the Asus G1S to the noloop exception table resolves the issue. # dmidecode 2.10 SMBIOS 2.4 present. Handle 0x0001, DMI type 1, 27 bytes System Information Manufacturer: ASUSTeK Computer Inc. Product Name: G1S Version: 1.0 Wake-up Type: Power Switch SKU Number: Family: Signed-off-by: Jory A. Pratt Signed-off-by: Dmitry Torokhov --- drivers/input/serio/i8042-x86ia64io.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h index 924e8ed7f2c..ae04d8a494e 100644 --- a/drivers/input/serio/i8042-x86ia64io.h +++ b/drivers/input/serio/i8042-x86ia64io.h @@ -77,6 +77,14 @@ static struct dmi_system_id __initdata i8042_dmi_noloop_table[] = { DMI_MATCH(DMI_BOARD_VERSION, "Rev E"), }, }, + { + .ident = "ASUS G1S", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer Inc."), + DMI_MATCH(DMI_BOARD_NAME, "G1S"), + DMI_MATCH(DMI_BOARD_VERSION, "1.0"), + }, + }, { /* AUX LOOP command does not raise AUX IRQ */ .ident = "ASUS P65UP5", -- cgit v1.2.3 From f532959b77e5e567c84c914cb7c7b07d2582448b Mon Sep 17 00:00:00 2001 From: Fenghua Yu Date: Tue, 4 Aug 2009 15:09:37 -0700 Subject: intel-iommu: Correct sglist size calculation. In domain_sg_mapping(), use aligned_nrpages() instead of hand-coded rounding code for calculating the size of each sg elem. This means that on IA64 we correctly round up to the MM page size, not just to the VT-d page size. Also remove the incorrect mm_to_dma_pfn() when intel_map_sg() calls domain_sg_mapping() -- the 'size' variable is in VT-d pages already. Signed-off-by: Fenghua Yu Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index ebc9b8dca88..11b317a78b4 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -1648,6 +1648,14 @@ static int domain_context_mapped(struct pci_dev *pdev) tmp->devfn); } +/* Returns a number of VTD pages, but aligned to MM page size */ +static inline unsigned long aligned_nrpages(unsigned long host_addr, + size_t size) +{ + host_addr &= ~PAGE_MASK; + return PAGE_ALIGN(host_addr + size) >> VTD_PAGE_SHIFT; +} + static int __domain_mapping(struct dmar_domain *domain, unsigned long iov_pfn, struct scatterlist *sg, unsigned long phys_pfn, unsigned long nr_pages, int prot) @@ -1675,7 +1683,7 @@ static int __domain_mapping(struct dmar_domain *domain, unsigned long iov_pfn, uint64_t tmp; if (!sg_res) { - sg_res = (sg->offset + sg->length + VTD_PAGE_SIZE - 1) >> VTD_PAGE_SHIFT; + sg_res = aligned_nrpages(sg->offset, sg->length); sg->dma_address = ((dma_addr_t)iov_pfn << VTD_PAGE_SHIFT) + sg->offset; sg->dma_length = sg->length; pteval = page_to_phys(sg_page(sg)) | prot; @@ -2415,14 +2423,6 @@ error: return ret; } -/* Returns a number of VTD pages, but aligned to MM page size */ -static inline unsigned long aligned_nrpages(unsigned long host_addr, - size_t size) -{ - host_addr &= ~PAGE_MASK; - return PAGE_ALIGN(host_addr + size) >> VTD_PAGE_SHIFT; -} - /* This takes a number of _MM_ pages, not VTD pages */ static struct iova *intel_alloc_iova(struct device *dev, struct dmar_domain *domain, @@ -2875,7 +2875,7 @@ static int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int ne start_vpfn = mm_to_dma_pfn(iova->pfn_lo); - ret = domain_sg_mapping(domain, start_vpfn, sglist, mm_to_dma_pfn(size), prot); + ret = domain_sg_mapping(domain, start_vpfn, sglist, size, prot); if (unlikely(ret)) { /* clear the page */ dma_pte_clear_range(domain, start_vpfn, -- cgit v1.2.3 From 33041ec049d39a6e0463c7edc7b6f631d24559e3 Mon Sep 17 00:00:00 2001 From: Fenghua Yu Date: Tue, 4 Aug 2009 15:10:59 -0700 Subject: intel-iommu: Mask physical address to correct page size in intel_map_single() The physical address passed to domain_pfn_mapping() should be rounded down to the start of the MM page, not the VT-d page. This issue causes kernel panic on PAGE_SIZE>VTD_PAGE_SIZE platforms e.g. ia64 platforms. Signed-off-by: Fenghua Yu Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 11b317a78b4..af7ff9b5aed 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -2551,6 +2551,7 @@ static dma_addr_t __intel_map_single(struct device *hwdev, phys_addr_t paddr, int prot = 0; int ret; struct intel_iommu *iommu; + unsigned long paddr_pfn = paddr >> PAGE_SHIFT; BUG_ON(dir == DMA_NONE); @@ -2585,7 +2586,7 @@ static dma_addr_t __intel_map_single(struct device *hwdev, phys_addr_t paddr, * is not a big problem */ ret = domain_pfn_mapping(domain, mm_to_dma_pfn(iova->pfn_lo), - paddr >> VTD_PAGE_SHIFT, size, prot); + mm_to_dma_pfn(paddr_pfn), size, prot); if (ret) goto error; -- cgit v1.2.3 From 7d5b005652bc5ae3e1e0efc53fd0e25a643ec506 Mon Sep 17 00:00:00 2001 From: Alok Kataria Date: Tue, 4 Aug 2009 15:34:22 -0700 Subject: x86: Fix VMI && stack protector With CONFIG_STACK_PROTECTOR turned on, VMI doesn't boot with more than one processor. The problem is with the gs value not being initialized correctly when registering the secondary processor for VMI's case. The patch below initializes the gs value for the AP to __KERNEL_STACK_CANARY. Without this the secondary processor keeps on taking a GP on every gs access. Signed-off-by: Alok N Kataria Cc: # for v2.6.30.x LKML-Reference: <1249425262.18955.40.camel@ank32.eng.vmware.com> Signed-off-by: Ingo Molnar --- arch/x86/kernel/vmi_32.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c index b263423fbe2..95a7289e4b0 100644 --- a/arch/x86/kernel/vmi_32.c +++ b/arch/x86/kernel/vmi_32.c @@ -441,7 +441,7 @@ vmi_startup_ipi_hook(int phys_apicid, unsigned long start_eip, ap.ds = __USER_DS; ap.es = __USER_DS; ap.fs = __KERNEL_PERCPU; - ap.gs = 0; + ap.gs = __KERNEL_STACK_CANARY; ap.eflags = 0; -- cgit v1.2.3 From e125e7b6944898831b56739a5448e705578bf7e2 Mon Sep 17 00:00:00 2001 From: Jan Kiszka Date: Thu, 2 Jul 2009 21:45:47 +0200 Subject: KVM: Fix KVM_GET_MSR_INDEX_LIST So far, KVM copied the emulated_msrs (only MSR_IA32_MISC_ENABLE) to a wrong address in user space due to broken pointer arithmetic. This caused subtle corruption up there (missing MSR_IA32_MISC_ENABLE had probably no practical relevance). Moreover, the size check for the user-provided kvm_msr_list forgot about emulated MSRs. Cc: stable@kernel.org Signed-off-by: Jan Kiszka Signed-off-by: Avi Kivity --- arch/x86/kvm/x86.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index fe5474aec41..7bc311464fa 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1079,14 +1079,13 @@ long kvm_arch_dev_ioctl(struct file *filp, if (copy_to_user(user_msr_list, &msr_list, sizeof msr_list)) goto out; r = -E2BIG; - if (n < num_msrs_to_save) + if (n < msr_list.nmsrs) goto out; r = -EFAULT; if (copy_to_user(user_msr_list->indices, &msrs_to_save, num_msrs_to_save * sizeof(u32))) goto out; - if (copy_to_user(user_msr_list->indices - + num_msrs_to_save * sizeof(u32), + if (copy_to_user(user_msr_list->indices + num_msrs_to_save, &emulated_msrs, ARRAY_SIZE(emulated_msrs) * sizeof(u32))) goto out; -- cgit v1.2.3 From 0ff77873b1318fc2d77a85e70690d3cd6cafbd41 Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Thu, 2 Jul 2009 20:02:15 -0300 Subject: KVM: PIT: fix kpit_elapsed division by zero Fix division by zero triggered by latch count command on uninitialized counter. Cc: stable@kernel.org Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity --- arch/x86/kvm/i8254.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c index 4d6f0d293ee..21f68e00524 100644 --- a/arch/x86/kvm/i8254.c +++ b/arch/x86/kvm/i8254.c @@ -104,6 +104,9 @@ static s64 __kpit_elapsed(struct kvm *kvm) ktime_t remaining; struct kvm_kpit_state *ps = &kvm->arch.vpit->pit_state; + if (!ps->pit_timer.period) + return 0; + /* * The Counter does not stop when it reaches zero. In * Modes 0, 1, 4, and 5 the Counter ``wraps around'' to -- cgit v1.2.3 From d6289b9365c3f622a8cfe62c4fb054bb70b5061a Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Mon, 22 Jun 2009 15:27:56 -0300 Subject: KVM: x86: verify MTRR/PAT validity Do not allow invalid memory types in MTRR/PAT (generating a #GP otherwise). Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity --- arch/x86/kvm/x86.c | 39 ++++++++++++++++++++++++++++++++++++++- 1 file changed, 38 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 7bc311464fa..3d452901182 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -704,11 +704,48 @@ static bool msr_mtrr_valid(unsigned msr) return false; } +static bool valid_pat_type(unsigned t) +{ + return t < 8 && (1 << t) & 0xf3; /* 0, 1, 4, 5, 6, 7 */ +} + +static bool valid_mtrr_type(unsigned t) +{ + return t < 8 && (1 << t) & 0x73; /* 0, 1, 4, 5, 6 */ +} + +static bool mtrr_valid(struct kvm_vcpu *vcpu, u32 msr, u64 data) +{ + int i; + + if (!msr_mtrr_valid(msr)) + return false; + + if (msr == MSR_IA32_CR_PAT) { + for (i = 0; i < 8; i++) + if (!valid_pat_type((data >> (i * 8)) & 0xff)) + return false; + return true; + } else if (msr == MSR_MTRRdefType) { + if (data & ~0xcff) + return false; + return valid_mtrr_type(data & 0xff); + } else if (msr >= MSR_MTRRfix64K_00000 && msr <= MSR_MTRRfix4K_F8000) { + for (i = 0; i < 8 ; i++) + if (!valid_mtrr_type((data >> (i * 8)) & 0xff)) + return false; + return true; + } + + /* variable MTRRs */ + return valid_mtrr_type(data & 0xff); +} + static int set_msr_mtrr(struct kvm_vcpu *vcpu, u32 msr, u64 data) { u64 *p = (u64 *)&vcpu->arch.mtrr_state.fixed_ranges; - if (!msr_mtrr_valid(msr)) + if (!mtrr_valid(vcpu, msr, data)) return 1; if (msr == MSR_MTRRdefType) { -- cgit v1.2.3 From 4b656b1202498184a0ecef86b3b89ff613b9c6ab Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Tue, 21 Jul 2009 12:47:45 -0300 Subject: KVM: SVM: force new asid on vcpu migration If a migrated vcpu matches the asid_generation value of the target pcpu, there will be no TLB flush via TLB_CONTROL_FLUSH_ALL_ASID. The check for vcpu.cpu in pre_svm_run is meaningless since svm_vcpu_load already updated it on schedule in. Such vcpu will VMRUN with stale TLB entries. Based on original patch from Joerg Roedel (http://patchwork.kernel.org/patch/10021/) Signed-off-by: Marcelo Tosatti Acked-by: Joerg Roedel Signed-off-by: Avi Kivity --- arch/x86/kvm/svm.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 71510e07e69..b1f658ad2f0 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -711,6 +711,7 @@ static void svm_vcpu_load(struct kvm_vcpu *vcpu, int cpu) svm->vmcb->control.tsc_offset += delta; vcpu->cpu = cpu; kvm_migrate_timers(vcpu); + svm->asid_generation = 0; } for (i = 0; i < NR_HOST_SAVE_USER_MSRS; i++) @@ -1031,7 +1032,6 @@ static void new_asid(struct vcpu_svm *svm, struct svm_cpu_data *svm_data) svm->vmcb->control.tlb_ctl = TLB_CONTROL_FLUSH_ALL_ASID; } - svm->vcpu.cpu = svm_data->cpu; svm->asid_generation = svm_data->asid_generation; svm->vmcb->control.asid = svm_data->next_asid++; } @@ -2300,8 +2300,8 @@ static void pre_svm_run(struct vcpu_svm *svm) struct svm_cpu_data *svm_data = per_cpu(svm_data, cpu); svm->vmcb->control.tlb_ctl = TLB_CONTROL_DO_NOTHING; - if (svm->vcpu.cpu != cpu || - svm->asid_generation != svm_data->asid_generation) + /* FIXME: handle wraparound of asid_generation */ + if (svm->asid_generation != svm_data->asid_generation) new_asid(svm, svm_data); } -- cgit v1.2.3 From 025dbbf36a7680bffe54d9dcbf0a8bc01a7cbd10 Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Wed, 22 Jul 2009 13:05:49 -0300 Subject: KVM: MMU: handle n_free_mmu_pages > n_alloc_mmu_pages in kvm_mmu_change_mmu_pages kvm_mmu_change_mmu_pages mishandles the case where n_alloc_mmu_pages is smaller then n_free_mmu_pages, by not checking if the result of the subtraction is negative. Its a valid condition which can happen if a large number of pages has been recently freed. Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity --- arch/x86/kvm/mmu.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 7030b5f911b..49a10d00830 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -1407,24 +1407,25 @@ static int kvm_mmu_zap_page(struct kvm *kvm, struct kvm_mmu_page *sp) */ void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages) { + int used_pages; + + used_pages = kvm->arch.n_alloc_mmu_pages - kvm->arch.n_free_mmu_pages; + used_pages = max(0, used_pages); + /* * If we set the number of mmu pages to be smaller be than the * number of actived pages , we must to free some mmu pages before we * change the value */ - if ((kvm->arch.n_alloc_mmu_pages - kvm->arch.n_free_mmu_pages) > - kvm_nr_mmu_pages) { - int n_used_mmu_pages = kvm->arch.n_alloc_mmu_pages - - kvm->arch.n_free_mmu_pages; - - while (n_used_mmu_pages > kvm_nr_mmu_pages) { + if (used_pages > kvm_nr_mmu_pages) { + while (used_pages > kvm_nr_mmu_pages) { struct kvm_mmu_page *page; page = container_of(kvm->arch.active_mmu_pages.prev, struct kvm_mmu_page, link); kvm_mmu_zap_page(kvm, page); - n_used_mmu_pages--; + used_pages--; } kvm->arch.n_free_mmu_pages = 0; } -- cgit v1.2.3 From 34f0c1ad27a74bd5eb0f99ea43ab6a4658d6419d Mon Sep 17 00:00:00 2001 From: Jan Kiszka Date: Wed, 22 Jul 2009 23:53:26 +0200 Subject: KVM: VMX: Fix locking order in handle_invalid_guest_state Release and re-acquire preemption and IRQ lock in the same order as vcpu_enter_guest does. Signed-off-by: Jan Kiszka Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity --- arch/x86/kvm/vmx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 356a0ce85c6..6bf58c083f0 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -3157,8 +3157,8 @@ static void handle_invalid_guest_state(struct kvm_vcpu *vcpu, struct vcpu_vmx *vmx = to_vmx(vcpu); enum emulation_result err = EMULATE_DONE; - preempt_enable(); local_irq_enable(); + preempt_enable(); while (!guest_state_valid(vcpu)) { err = emulate_instruction(vcpu, kvm_run, 0, 0, 0); @@ -3177,8 +3177,8 @@ static void handle_invalid_guest_state(struct kvm_vcpu *vcpu, schedule(); } - local_irq_disable(); preempt_disable(); + local_irq_disable(); vmx->invalid_state_emulation_result = err; } -- cgit v1.2.3 From 263799a3616242201e20fd2025fe84047b1379b1 Mon Sep 17 00:00:00 2001 From: Jan Kiszka Date: Tue, 21 Jul 2009 10:43:07 +0200 Subject: KVM: VMX: Fix locking imbalance on emulation failure We have to disable preemption and IRQs on every exit from handle_invalid_guest_state, otherwise we generate at least a preempt_disable imbalance. Signed-off-by: Jan Kiszka Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity --- arch/x86/kvm/vmx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 6bf58c083f0..29f912927a5 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -3168,7 +3168,7 @@ static void handle_invalid_guest_state(struct kvm_vcpu *vcpu, if (err != EMULATE_DONE) { kvm_report_emulation_failure(vcpu, "emulation failure"); - return; + break; } if (signal_pending(current)) -- cgit v1.2.3 From d3bc2f91b4761a8d9f96bea167fef2f8c00dea54 Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Thu, 16 Jul 2009 17:17:37 +0200 Subject: KVM: s390: fix wait_queue handling There are two waitqueues in kvm for wait handling: vcpu->wq for virt/kvm/kvm_main.c and vpcu->arch.local_int.wq for the s390 specific wait code. the wait handling in kvm_s390_handle_wait was broken by using different wait_queues for add_wait queue and remove_wait_queue. There are two options to fix the problem: o move all the s390 specific code to vcpu->wq and remove vcpu->arch.local_int.wq o move all the s390 specific code to vcpu->arch.local_int.wq This patch chooses the 2nd variant for two reasons: o s390 does not use kvm_vcpu_block but implements its own enabled wait handling. Having a separate wait_queue make it clear, that our wait mechanism is different o the patch is much smaller Report-by: Julia Lawall Signed-off-by: Christian Borntraeger Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity --- arch/s390/kvm/interrupt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c index f04f5301b1b..4d613415c43 100644 --- a/arch/s390/kvm/interrupt.c +++ b/arch/s390/kvm/interrupt.c @@ -386,7 +386,7 @@ no_timer: } __unset_cpu_idle(vcpu); __set_current_state(TASK_RUNNING); - remove_wait_queue(&vcpu->wq, &wait); + remove_wait_queue(&vcpu->arch.local_int.wq, &wait); spin_unlock_bh(&vcpu->arch.local_int.lock); spin_unlock(&vcpu->arch.local_int.float_int->lock); hrtimer_try_to_cancel(&vcpu->arch.ckc_timer); -- cgit v1.2.3 From 5116d8f6b977970ebefc1932c0f313163a6ec91f Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Sun, 26 Jul 2009 17:10:01 +0300 Subject: KVM: fix ack not being delivered when msi present kvm_notify_acked_irq does not check irq type, so that it sometimes interprets msi vector as irq. As a result, ack notifiers are not called, which typially hangs the guest. The fix is to track and check irq type. Signed-off-by: Michael S. Tsirkin Signed-off-by: Avi Kivity --- include/linux/kvm_host.h | 1 + virt/kvm/irq_comm.c | 4 +++- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 16713dc672e..3060bdc35ff 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -110,6 +110,7 @@ struct kvm_memory_slot { struct kvm_kernel_irq_routing_entry { u32 gsi; + u32 type; int (*set)(struct kvm_kernel_irq_routing_entry *e, struct kvm *kvm, int level); union { diff --git a/virt/kvm/irq_comm.c b/virt/kvm/irq_comm.c index a8bd466d00c..ddc17f0e2f3 100644 --- a/virt/kvm/irq_comm.c +++ b/virt/kvm/irq_comm.c @@ -160,7 +160,8 @@ void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin) unsigned gsi = pin; list_for_each_entry(e, &kvm->irq_routing, link) - if (e->irqchip.irqchip == irqchip && + if (e->type == KVM_IRQ_ROUTING_IRQCHIP && + e->irqchip.irqchip == irqchip && e->irqchip.pin == pin) { gsi = e->gsi; break; @@ -259,6 +260,7 @@ static int setup_routing_entry(struct kvm_kernel_irq_routing_entry *e, int delta; e->gsi = ue->gsi; + e->type = ue->type; switch (ue->type) { case KVM_IRQ_ROUTING_IRQCHIP: delta = 0; -- cgit v1.2.3 From 114cfab222233f50f46d7162cf7d99fdc6c271e5 Mon Sep 17 00:00:00 2001 From: Pekka Enberg Date: Wed, 5 Aug 2009 13:25:21 +0300 Subject: perf report: Make --sort comm,dso,symbol the default If you're doing performance testing, you're interested in the symbols anyway so lets make "--sort comm,dso,symbol" the default sort option. Signed-off-by: Pekka Enberg Acked-by: Peter Zijlstra Cc: acme@redhat.com LKML-Reference: <1249467921-10450-1-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar --- tools/perf/builtin-report.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index ce4f28645e6..8cb58d68a00 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -31,7 +31,7 @@ static char const *input_name = "perf.data"; static char *vmlinux = NULL; -static char default_sort_order[] = "comm,dso"; +static char default_sort_order[] = "comm,dso,symbol"; static char *sort_order = default_sort_order; static char *dso_list_str, *comm_list_str, *sym_list_str, *col_width_list_str; @@ -1424,7 +1424,7 @@ print_entries: if (sort_order == default_sort_order && parent_pattern == default_parent_pattern) { fprintf(fp, "#\n"); - fprintf(fp, "# (For more details, try: perf report --sort comm,dso,symbol)\n"); + fprintf(fp, "# (For a higher level overview, try: perf report --sort comm,dso)\n"); fprintf(fp, "#\n"); } fprintf(fp, "\n"); -- cgit v1.2.3 From c428dcc9b9f967945992a2f8529e8c50a31d7913 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Wed, 17 Jun 2009 15:04:19 +1000 Subject: KVM: Make KVM_HPAGES_PER_HPAGE unsigned long to avoid build error on powerpc Eliminates this compiler warning: arch/powerpc/kvm/../../../virt/kvm/kvm_main.c:1178: error: integer overflow in expression Signed-off-by: Stephen Rothwell Signed-off-by: Avi Kivity --- arch/powerpc/include/asm/kvm_host.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h index dfdf13c9fef..fddc3ed715f 100644 --- a/arch/powerpc/include/asm/kvm_host.h +++ b/arch/powerpc/include/asm/kvm_host.h @@ -34,7 +34,7 @@ #define KVM_COALESCED_MMIO_PAGE_OFFSET 1 /* We don't currently support large pages. */ -#define KVM_PAGES_PER_HPAGE (1<<31) +#define KVM_PAGES_PER_HPAGE (1UL << 31) struct kvm; struct kvm_run; -- cgit v1.2.3 From e9cbde8c158629cc96a26b2323c4a243536c1951 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Mon, 6 Jul 2009 12:49:39 +0300 Subject: KVM: ia64: fix build failures due to ia64/unsigned long mismatches Signed-off-by: Avi Kivity --- arch/ia64/kvm/mmio.c | 6 ++++-- arch/ia64/kvm/vcpu.c | 6 +++--- arch/ia64/kvm/vcpu.h | 13 +++++++------ 3 files changed, 14 insertions(+), 11 deletions(-) diff --git a/arch/ia64/kvm/mmio.c b/arch/ia64/kvm/mmio.c index 21f63fffc37..9bf55afd08d 100644 --- a/arch/ia64/kvm/mmio.c +++ b/arch/ia64/kvm/mmio.c @@ -247,7 +247,8 @@ void emulate_io_inst(struct kvm_vcpu *vcpu, u64 padr, u64 ma) vcpu_get_fpreg(vcpu, inst.M9.f2, &v); /* Write high word. FIXME: this is a kludge! */ v.u.bits[1] &= 0x3ffff; - mmio_access(vcpu, padr + 8, &v.u.bits[1], 8, ma, IOREQ_WRITE); + mmio_access(vcpu, padr + 8, (u64 *)&v.u.bits[1], 8, + ma, IOREQ_WRITE); data = v.u.bits[0]; size = 3; } else if (inst.M10.major == 7 && inst.M10.x6 == 0x3B) { @@ -265,7 +266,8 @@ void emulate_io_inst(struct kvm_vcpu *vcpu, u64 padr, u64 ma) /* Write high word.FIXME: this is a kludge! */ v.u.bits[1] &= 0x3ffff; - mmio_access(vcpu, padr + 8, &v.u.bits[1], 8, ma, IOREQ_WRITE); + mmio_access(vcpu, padr + 8, (u64 *)&v.u.bits[1], + 8, ma, IOREQ_WRITE); data = v.u.bits[0]; size = 3; } else if (inst.M10.major == 7 && inst.M10.x6 == 0x31) { diff --git a/arch/ia64/kvm/vcpu.c b/arch/ia64/kvm/vcpu.c index 46b02cbcc87..cc406d064a0 100644 --- a/arch/ia64/kvm/vcpu.c +++ b/arch/ia64/kvm/vcpu.c @@ -461,7 +461,7 @@ void setreg(unsigned long regnum, unsigned long val, u64 vcpu_get_gr(struct kvm_vcpu *vcpu, unsigned long reg) { struct kvm_pt_regs *regs = vcpu_regs(vcpu); - u64 val; + unsigned long val; if (!reg) return 0; @@ -469,7 +469,7 @@ u64 vcpu_get_gr(struct kvm_vcpu *vcpu, unsigned long reg) return val; } -void vcpu_set_gr(struct kvm_vcpu *vcpu, u64 reg, u64 value, int nat) +void vcpu_set_gr(struct kvm_vcpu *vcpu, unsigned long reg, u64 value, int nat) { struct kvm_pt_regs *regs = vcpu_regs(vcpu); long sof = (regs->cr_ifs) & 0x7f; @@ -1072,7 +1072,7 @@ void kvm_ttag(struct kvm_vcpu *vcpu, INST64 inst) vcpu_set_gr(vcpu, inst.M46.r1, tag, 0); } -int vcpu_tpa(struct kvm_vcpu *vcpu, u64 vadr, u64 *padr) +int vcpu_tpa(struct kvm_vcpu *vcpu, u64 vadr, unsigned long *padr) { struct thash_data *data; union ia64_isr visr, pt_isr; diff --git a/arch/ia64/kvm/vcpu.h b/arch/ia64/kvm/vcpu.h index 042af92ced8..360724d3ae6 100644 --- a/arch/ia64/kvm/vcpu.h +++ b/arch/ia64/kvm/vcpu.h @@ -686,14 +686,15 @@ static inline int highest_inservice_irq(struct kvm_vcpu *vcpu) return highest_bits((int *)&(VMX(vcpu, insvc[0]))); } -extern void vcpu_get_fpreg(struct kvm_vcpu *vcpu, u64 reg, +extern void vcpu_get_fpreg(struct kvm_vcpu *vcpu, unsigned long reg, struct ia64_fpreg *val); -extern void vcpu_set_fpreg(struct kvm_vcpu *vcpu, u64 reg, +extern void vcpu_set_fpreg(struct kvm_vcpu *vcpu, unsigned long reg, struct ia64_fpreg *val); -extern u64 vcpu_get_gr(struct kvm_vcpu *vcpu, u64 reg); -extern void vcpu_set_gr(struct kvm_vcpu *vcpu, u64 reg, u64 val, int nat); -extern u64 vcpu_get_psr(struct kvm_vcpu *vcpu); -extern void vcpu_set_psr(struct kvm_vcpu *vcpu, u64 val); +extern u64 vcpu_get_gr(struct kvm_vcpu *vcpu, unsigned long reg); +extern void vcpu_set_gr(struct kvm_vcpu *vcpu, unsigned long reg, + u64 val, int nat); +extern unsigned long vcpu_get_psr(struct kvm_vcpu *vcpu); +extern void vcpu_set_psr(struct kvm_vcpu *vcpu, unsigned long val); extern u64 vcpu_thash(struct kvm_vcpu *vcpu, u64 vadr); extern void vcpu_bsw0(struct kvm_vcpu *vcpu); extern void thash_vhpt_insert(struct kvm_vcpu *v, u64 pte, -- cgit v1.2.3 From 2cdbc46d7b2cb0acb68c3ecad93b000552121fa6 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Wed, 5 Aug 2009 14:05:16 +0200 Subject: perf: Auto-detect libbfd Since the C++ demangling isn't needed for everybody and bfd/iberty aren't widely/easily available on all machines, make it optional. It also allows you to forcefully disable demangling by using NO_DEMANGLE=1 and otherwise tries to detect libbfd/libiberty combinations that result in a compiling demangler. Reported-by: Jens Axboe Signed-off-by: Peter Zijlstra Cc: Arnaldo Carvalho de Melo Cc: Kyle McMartin LKML-Reference: <20090801082048.GX12579@kernel.dk> Signed-off-by: Ingo Molnar --- tools/perf/Makefile | 18 +++++++++++++++++- tools/perf/util/symbol.c | 9 +++++++++ 2 files changed, 26 insertions(+), 1 deletion(-) diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 4b20fa47c3a..ff905aceb4f 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -345,7 +345,6 @@ BUILTIN_OBJS += builtin-stat.o BUILTIN_OBJS += builtin-top.o PERFLIBS = $(LIB_FILE) -EXTLIBS = -lbfd -liberty # # Platform specific tweaks @@ -374,6 +373,23 @@ ifeq ($(uname_S),Darwin) PTHREAD_LIBS = endif +ifdef NO_DEMANGLE + BASIC_CFLAGS += -DNO_DEMANGLE +else + + has_bfd := $(shell sh -c "(echo '\#include '; echo '\#include '; echo '\#ifndef DMGL_PARAMS'; echo '\#define DMGL_PARAMS (1 << 0)'; echo '\#define DMGL_ANSI (1 << 1)'; echo '\#endif'; echo 'int main(int argc, char **argv) { bfd_demangle(NULL, argv[0], DMGL_PARAMS | DMGL_ANSI); return 0; }') | gcc -x c - -lbfd > /dev/null 2>&1 && echo y") + + has_bfd_iberty := $(shell sh -c "(echo '\#include '; echo '\#include '; echo '\#ifndef DMGL_PARAMS'; echo '\#define DMGL_PARAMS (1 << 0)'; echo '\#define DMGL_ANSI (1 << 1)'; echo '\#endif'; echo 'int main(int argc, char **argv) { bfd_demangle(NULL, argv[0], DMGL_PARAMS | DMGL_ANSI); return 0; }') | gcc -x c - -lbfd -liberty > /dev/null 2>&1 && echo y") + + ifeq ($(has_bfd),y) + EXTLIBS += -lbfd + else ifeq ($(has_bfd_iberty),y) + EXTLIBS += -lbfd -liberty + else + BASIC_CFLAGS += -DNO_DEMANGLE + endif +endif + ifndef CC_LD_DYNPATH ifdef NO_R_TO_GCC_LINKER # Some gcc does not accept and pass -R to the linker to specify diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index b4fe0579bd6..0580b94785e 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -6,7 +6,16 @@ #include #include #include + +#ifndef NO_DEMANGLE #include +#else +static inline +char *bfd_demangle(void __used *v, const char __used *c, int __used i) +{ + return NULL; +} +#endif const char *sym_hist_filter; -- cgit v1.2.3 From 386c0b702b1ea81c0f54f5c9832a3d4a52270f14 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Wed, 5 Aug 2009 10:04:53 -0300 Subject: perf report: Add missing command line options to man page Signed-off-by: Arnaldo Carvalho de Melo Cc: Peter Zijlstra LKML-Reference: <20090805130453.GC10688@ghostprotocols.net> Signed-off-by: Ingo Molnar --- tools/perf/Documentation/perf-record.txt | 60 ++++++++++++++++++++++++++++++-- 1 file changed, 57 insertions(+), 3 deletions(-) diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt index 1dbc1eeb4c0..6be696b0a2b 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -29,13 +29,67 @@ OPTIONS Select the PMU event. Selection can be a symbolic event name (use 'perf list' to list all events) or a raw PMU event (eventsel+umask) in the form of rNNN where NNN is a - hexadecimal event descriptor. + hexadecimal event descriptor. -a:: - system-wide collection + System-wide collection. -l:: - scale counter values + Scale counter values. + +-p:: +--pid=:: + Record events on existing pid. + +-r:: +--realtime=:: + Collect data with this RT SCHED_FIFO priority. +-A:: +--append:: + Append to the output file to do incremental profiling. + +-f:: +--force:: + Overwrite existing data file. + +-c:: +--count=:: + Event period to sample. + +-o:: +--output=:: + Output file name. + +-i:: +--inherit:: + Child tasks inherit counters. +-F:: +--freq=:: + Profile at this frequency. + +-m:: +--mmap-pages=:: + Number of mmap data pages. + +-g:: +--call-graph:: + Do call-graph (stack chain/backtrace) recording. + +-v:: +--verbose:: + Be more verbose (show counter open errors, etc). + +-s:: +--stat:: + Per thread counts. + +-d:: +--data:: + Sample addresses. + +-n:: +--no-samples:: + Don't sample. SEE ALSO -------- -- cgit v1.2.3 From 9c9fe1f841745184bbc5460c6f3909fded3b929b Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Mon, 3 Aug 2009 16:09:16 -0700 Subject: drm/i915: Use our own workqueue to avoid wedging the system along with the GPU. Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_dma.c | 15 +++++++++++++-- drivers/gpu/drm/i915/i915_drv.h | 1 + drivers/gpu/drm/i915/i915_gem.c | 4 ++-- drivers/gpu/drm/i915/i915_irq.c | 5 +++-- 4 files changed, 19 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 8c4783180bf..50d1f782768 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1186,6 +1186,13 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) if (ret) goto out_iomapfree; + dev_priv->wq = create_workqueue("i915"); + if (dev_priv->wq == NULL) { + DRM_ERROR("Failed to create our workqueue.\n"); + ret = -ENOMEM; + goto out_iomapfree; + } + /* enable GEM by default */ dev_priv->has_gem = 1; @@ -1211,7 +1218,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) if (!I915_NEED_GFX_HWS(dev)) { ret = i915_init_phys_hws(dev); if (ret != 0) - goto out_iomapfree; + goto out_workqueue_free; } i915_get_mem_freq(dev); @@ -1245,7 +1252,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) ret = i915_load_modeset_init(dev, prealloc_size, agp_size); if (ret < 0) { DRM_ERROR("failed to init modeset\n"); - goto out_rmmap; + goto out_workqueue_free; } } @@ -1256,6 +1263,8 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) return 0; +out_workqueue_free: + destroy_workqueue(dev_priv->wq); out_iomapfree: io_mapping_free(dev_priv->mm.gtt_mapping); out_rmmap: @@ -1269,6 +1278,8 @@ int i915_driver_unload(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; + destroy_workqueue(dev_priv->wq); + io_mapping_free(dev_priv->mm.gtt_mapping); if (dev_priv->mm.gtt_mtrr >= 0) { mtrr_del(dev_priv->mm.gtt_mtrr, dev->agp->base, diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 5f3a259d95e..7537f57d8a8 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -231,6 +231,7 @@ typedef struct drm_i915_private { spinlock_t error_lock; struct drm_i915_error_state *first_error; struct work_struct error_work; + struct workqueue_struct *wq; /* Register state */ u8 saveLBB; diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 5bf420378b6..140bee142fc 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1570,7 +1570,7 @@ i915_add_request(struct drm_device *dev, struct drm_file *file_priv, } if (was_empty && !dev_priv->mm.suspended) - schedule_delayed_work(&dev_priv->mm.retire_work, HZ); + queue_delayed_work(dev_priv->wq, &dev_priv->mm.retire_work, HZ); return seqno; } @@ -1719,7 +1719,7 @@ i915_gem_retire_work_handler(struct work_struct *work) i915_gem_retire_requests(dev); if (!dev_priv->mm.suspended && !list_empty(&dev_priv->mm.request_list)) - schedule_delayed_work(&dev_priv->mm.retire_work, HZ); + queue_delayed_work(dev_priv->wq, &dev_priv->mm.retire_work, HZ); mutex_unlock(&dev->struct_mutex); } diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index f340b3fd54e..83aee80e77a 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -482,7 +482,7 @@ static void i915_handle_error(struct drm_device *dev) I915_WRITE(IIR, I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT); } - schedule_work(&dev_priv->error_work); + queue_work(dev_priv->wq, &dev_priv->error_work); } irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS) @@ -560,7 +560,8 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS) DRM_DEBUG("hotplug event received, stat 0x%08x\n", hotplug_status); if (hotplug_status & dev_priv->hotplug_supported_mask) - schedule_work(&dev_priv->hotplug_work); + queue_work(dev_priv->wq, + &dev_priv->hotplug_work); I915_WRITE(PORT_HOTPLUG_STAT, hotplug_status); I915_READ(PORT_HOTPLUG_STAT); -- cgit v1.2.3 From 819e0064634f580ab618189e657ea58341d214b7 Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Sun, 26 Jul 2009 00:50:38 +0200 Subject: drm/i915: Fix read outside array bounds in restoring the SWF10 range. dev_priv->saveSWF1 is a 16 element array, but this reads up to index 22, and restored values from the wrong registers. Signed-off-by: Roel Kluin Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_suspend.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c index 9e1d16e5c3e..1d04e1904ac 100644 --- a/drivers/gpu/drm/i915/i915_suspend.c +++ b/drivers/gpu/drm/i915/i915_suspend.c @@ -598,7 +598,7 @@ int i915_restore_state(struct drm_device *dev) for (i = 0; i < 16; i++) { I915_WRITE(SWF00 + (i << 2), dev_priv->saveSWF0[i]); - I915_WRITE(SWF10 + (i << 2), dev_priv->saveSWF1[i+7]); + I915_WRITE(SWF10 + (i << 2), dev_priv->saveSWF1[i]); } for (i = 0; i < 3; i++) I915_WRITE(SWF30 + (i << 2), dev_priv->saveSWF2[i]); -- cgit v1.2.3 From 0a51810aa058a0a4ac76dd6f87f4d10bee774e2e Mon Sep 17 00:00:00 2001 From: Andrew Victor Date: Tue, 4 Aug 2009 19:55:56 +0100 Subject: ARM: 5637/1: [KS8695] Don't reference CLOCK_TICK_RATE in drivers Stop referencing CLOCK_TICK_RATE in the KS8695 drivers, rather refer to a KS8695_CLOCK_RATE. Issue pointed out by Russell King on arm-linux-kernel mailing list. Signed-off-by: Andrew Victor Signed-off-by: Russell King --- arch/arm/mach-ks8695/include/mach/hardware.h | 5 +++++ arch/arm/mach-ks8695/include/mach/timex.h | 5 +++-- drivers/serial/serial_ks8695.c | 2 +- drivers/watchdog/ks8695_wdt.c | 4 ++-- 4 files changed, 11 insertions(+), 5 deletions(-) diff --git a/arch/arm/mach-ks8695/include/mach/hardware.h b/arch/arm/mach-ks8695/include/mach/hardware.h index 1d640d075b7..e0f911d9e02 100644 --- a/arch/arm/mach-ks8695/include/mach/hardware.h +++ b/arch/arm/mach-ks8695/include/mach/hardware.h @@ -16,6 +16,11 @@ #include +/* + * Clocks are derived from MCLK, which is 25Mhz + */ +#define KS8695_CLOCK_RATE 25000000 + /* * Physical RAM address. */ diff --git a/arch/arm/mach-ks8695/include/mach/timex.h b/arch/arm/mach-ks8695/include/mach/timex.h index 4682e350369..10f716371bd 100644 --- a/arch/arm/mach-ks8695/include/mach/timex.h +++ b/arch/arm/mach-ks8695/include/mach/timex.h @@ -14,7 +14,8 @@ #ifndef __ASM_ARCH_TIMEX_H #define __ASM_ARCH_TIMEX_H -/* timers are derived from MCLK, which is 25MHz */ -#define CLOCK_TICK_RATE 25000000 +#include + +#define CLOCK_TICK_RATE KS8695_CLOCK_RATE #endif diff --git a/drivers/serial/serial_ks8695.c b/drivers/serial/serial_ks8695.c index 998e89dc5aa..e0665630e4d 100644 --- a/drivers/serial/serial_ks8695.c +++ b/drivers/serial/serial_ks8695.c @@ -549,7 +549,7 @@ static struct uart_port ks8695uart_ports[SERIAL_KS8695_NR] = { .mapbase = KS8695_UART_VA, .iotype = SERIAL_IO_MEM, .irq = KS8695_IRQ_UART_TX, - .uartclk = CLOCK_TICK_RATE * 16, + .uartclk = KS8695_CLOCK_RATE * 16, .fifosize = 16, .ops = &ks8695uart_pops, .flags = ASYNC_BOOT_AUTOCONF, diff --git a/drivers/watchdog/ks8695_wdt.c b/drivers/watchdog/ks8695_wdt.c index 00b03eb43bf..e1c82769b08 100644 --- a/drivers/watchdog/ks8695_wdt.c +++ b/drivers/watchdog/ks8695_wdt.c @@ -66,7 +66,7 @@ static inline void ks8695_wdt_stop(void) static inline void ks8695_wdt_start(void) { unsigned long tmcon; - unsigned long tval = wdt_time * CLOCK_TICK_RATE; + unsigned long tval = wdt_time * KS8695_CLOCK_RATE; spin_lock(&ks8695_lock); /* disable timer0 */ @@ -103,7 +103,7 @@ static inline void ks8695_wdt_reload(void) static int ks8695_wdt_settimeout(int new_time) { /* - * All counting occurs at SLOW_CLOCK / 128 = 0.256 Hz + * All counting occurs at KS8695_CLOCK_RATE / 128 = 0.256 Hz * * Since WDV is a 16-bit counter, the maximum period is * 65536 / 0.256 = 256 seconds. -- cgit v1.2.3 From 65a5053b764a42d33b334ba55810bb5b56eb92df Mon Sep 17 00:00:00 2001 From: Hartley Sweeten Date: Tue, 4 Aug 2009 23:20:45 +0100 Subject: ARM: 5638/1: arch/arm/kernel/signal.c: use correct address space for CRUNCH preserve_crunch_context() calls __copy_to_user() which expects the destination address to be in __user space. setup_sigframe() properly passes the destination address. restore_crunch_context() calls __copy_from_user() which expects the source address to be in __user space. restore_sigframe() properly passes the source address. This fixes {preserve/restore}_crunch_context() to accept the address as __user space and resolves the following sparse warnings: arch/arm/kernel/signal.c:146:31: warning: incorrect type in argument 1 (different address spaces) expected void [noderef] *to got struct crunch_sigframe *frame arch/arm/kernel/signal.c:156:38: warning: incorrect type in argument 2 (different address spaces) expected void const [noderef] *from got struct crunch_sigframe *frame arch/arm/kernel/signal.c:250:48: warning: incorrect type in argument 1 (different address spaces) expected struct crunch_sigframe *frame got struct crunch_sigframe [noderef] * arch/arm/kernel/signal.c:365:49: warning: incorrect type in argument 1 (different address spaces) expected struct crunch_sigframe *frame got struct crunch_sigframe [noderef] * Signed-off-by: H Hartley Sweeten Signed-off-by: Russell King --- arch/arm/kernel/signal.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index 93bb4247b7e..f6bc5d44278 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -133,7 +133,7 @@ sys_sigaction(int sig, const struct old_sigaction __user *act, } #ifdef CONFIG_CRUNCH -static int preserve_crunch_context(struct crunch_sigframe *frame) +static int preserve_crunch_context(struct crunch_sigframe __user *frame) { char kbuf[sizeof(*frame) + 8]; struct crunch_sigframe *kframe; @@ -146,7 +146,7 @@ static int preserve_crunch_context(struct crunch_sigframe *frame) return __copy_to_user(frame, kframe, sizeof(*frame)); } -static int restore_crunch_context(struct crunch_sigframe *frame) +static int restore_crunch_context(struct crunch_sigframe __user *frame) { char kbuf[sizeof(*frame) + 8]; struct crunch_sigframe *kframe; -- cgit v1.2.3 From c0c60c4b9ab45bb02b20796401dd6a90770fd0ee Mon Sep 17 00:00:00 2001 From: Hartley Sweeten Date: Tue, 4 Aug 2009 23:38:06 +0100 Subject: ARM: 5639/1: arm: clkdev.c should include should be included to get the base API prototypes. This fixes the following sparse warnings: arch/arm/common/clkdev.c:65:12: warning: symbol 'clk_get_sys' was not declared. Should it be static? arch/arm/common/clkdev.c:79:12: warning: symbol 'clk_get' was not declared. Should it be static? arch/arm/common/clkdev.c:87:6: warning: symbol 'clk_put' was not declared. Should it be static? Signed-off-by: H Hartley Sweeten Signed-off-by: Russell King --- arch/arm/common/clkdev.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/common/clkdev.c b/arch/arm/common/clkdev.c index f37afd9422f..aae5bc01acc 100644 --- a/arch/arm/common/clkdev.c +++ b/arch/arm/common/clkdev.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include -- cgit v1.2.3 From 0f2541d299d233eddddee4345795e0c46264fd56 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Wed, 5 Aug 2009 12:02:48 -0400 Subject: ring-buffer: fix check of try_to_discard result The function ring_buffer_discard_commit inversed the code path of the result of try_to_discard. It should skip incrementing the entry counter if try_to_discard succeeded. But instead, it increments the entry conder if it succeeded to discard, and does not increment it if it fails. The result of this bug is that filtering will make the stat counters incorrect. Signed-off-by: Steven Rostedt --- kernel/trace/ring_buffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index bf27bb7a63e..2fd1752f0c8 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -1785,7 +1785,7 @@ void ring_buffer_discard_commit(struct ring_buffer *buffer, */ RB_WARN_ON(buffer, !local_read(&cpu_buffer->committing)); - if (!rb_try_to_discard(cpu_buffer, event)) + if (rb_try_to_discard(cpu_buffer, event)) goto out; /* -- cgit v1.2.3 From 464e85eb0e63096bd52e4c3e2a6fb8357fb95828 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Wed, 5 Aug 2009 15:26:37 -0400 Subject: ring-buffer: do not disable ring buffer on oops_in_progress The commit: commit e0fdace10e75dac67d906213b780ff1b1a4cc360 Author: David Miller Date: Fri Aug 1 01:11:22 2008 -0700 debug_locks: set oops_in_progress if we will log messages. Otherwise lock debugging messages on runqueue locks can deadlock the system due to the wakeups performed by printk(). Signed-off-by: David S. Miller Signed-off-by: Ingo Molnar Will permanently set oops_in_progress on any lockdep failure. When this triggers it will cause any read from the ring buffer to permanently disable the ring buffer (not to mention no locking of printk). This patch removes the check. It keeps the print in NMI which makes sense. This is probably OK, since the ring buffer should not cause something to set oops_in_progress anyway. Signed-off-by: Steven Rostedt --- kernel/trace/ring_buffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 2fd1752f0c8..2606cee433d 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -2486,7 +2486,7 @@ static inline int rb_ok_to_lock(void) * buffer too. A one time deal is all you get from reading * the ring buffer from an NMI. */ - if (likely(!in_nmi() && !oops_in_progress)) + if (likely(!in_nmi())) return 1; tracing_off_permanent(); -- cgit v1.2.3 From 3f6e968ef4e1d8d93d8a8505461b0e50a9e97ad8 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Wed, 5 Aug 2009 22:00:14 -0400 Subject: tracing: do not use functions starting with .L in recordmcount.pl On Wed, 5 Aug 2009, Ingo Molnar wrote: > * Dave Airlie wrote: > > > Hey, > > > > So I spent 3-4 hrs today (I'm stupid yes) tracking down a .o > > breakage by blaming rawhide gcc/binutils as I was using make > > V=1and seeing only the compiler chain running, > > Hm, is this that powerpc related build bug you just reported? Well we tracked it down and it is powerpc64 specific. Seems that in drivers/hwmon/lm93.c there's a function called: LM93_IN_FROM_REG() But PPC64 has function descriptors and the real function names (the ones you see in objdump) start with a '.'. Thus this in objdump you have: Disassembly of section .text: 0000000000000000 <.LM93_IN_FROM_REG>: 0: 7c 08 02 a6 mflr r0 4: fb 81 ff e0 std r28,-32(r1) The function name used is .LM93_IN_FROM_REG. But gcc considers symbols that start with ".L" as a special symbol that is used inside the assembly stage. The nm passed into recordmcount uses the --synthetic option which shows the ".L" symbols (my runs outside of the build did not include the --synthetic option, so my older patch worked). We see the function as a local. Now to capture all the locations that use "mcount" we need to have a reference to link into the object file a list of mcount callers. We need a reference that will not disappear. We try to use a global function and if that does not work, we use a local function as a reference. But to relink the section back into the object, we need to make it global. In this case, we run objcopy using --globalize-symbol and --localize-symbol to convert the symbol into a global symbol, link the mcount list, then convert it back to a local symbol. This works great except for this case. .L* symbols can not be converted into a global symbol, and the mcount section referencing it will remain unresolved. Reported-by: Dave Airlie LKML-Reference: Signed-off-by: Steven Rostedt --- scripts/recordmcount.pl | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl index d29baa2e063..4889c44d71b 100755 --- a/scripts/recordmcount.pl +++ b/scripts/recordmcount.pl @@ -414,7 +414,10 @@ while () { $offset = hex $1; } else { # if we already have a function, and this is weak, skip it - if (!defined($ref_func) && !defined($weak{$text})) { + if (!defined($ref_func) && !defined($weak{$text}) && + # PPC64 can have symbols that start with .L and + # gcc considers these special. Don't use them! + $text !~ /^\.L/) { $ref_func = $text; $offset = hex $1; } -- cgit v1.2.3 From 1bbf20835c4e088667a090ce6523a0f70b62dc76 Mon Sep 17 00:00:00 2001 From: Darren Hart Date: Wed, 5 Aug 2009 12:05:21 -0700 Subject: rtmutex: Avoid deadlock in rt_mutex_start_proxy_lock() In the event of a lock steal or owner died, rt_mutex_start_proxy_lock() will give the rt_mutex to the waiting task, but it fails to release the wait_lock. This leads to subsequent deadlocks when other tasks try to acquire the rt_mutex. I also removed a few extra blank lines that really spaced this routine out. I must have been high on the \n when I wrote this originally... Signed-off-by: Darren Hart Cc: Peter Zijlstra Cc: Steven Rostedt Cc: Dinakar Guniguntala Cc: John Stultz LKML-Reference: <4A79D7F1.4000405@us.ibm.com> Signed-off-by: Ingo Molnar --- kernel/rtmutex.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/kernel/rtmutex.c b/kernel/rtmutex.c index fcd107a78c5..29bd4baf9e7 100644 --- a/kernel/rtmutex.c +++ b/kernel/rtmutex.c @@ -1039,16 +1039,14 @@ int rt_mutex_start_proxy_lock(struct rt_mutex *lock, if (!rt_mutex_owner(lock) || try_to_steal_lock(lock, task)) { /* We got the lock for task. */ debug_rt_mutex_lock(lock); - rt_mutex_set_owner(lock, task, 0); - + spin_unlock(&lock->wait_lock); rt_mutex_deadlock_account_lock(lock, task); return 1; } ret = task_blocks_on_rt_mutex(lock, waiter, task, detect_deadlock); - if (ret && !waiter->task) { /* * Reset the return value. We might have -- cgit v1.2.3 From af6af30c0fcd77e621638e53ef8b176bca8bd3b4 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Wed, 5 Aug 2009 20:41:04 +0200 Subject: ftrace: Fix perf-tracepoint OOPS Not all tracepoints are created equal, in specific the ftrace tracepoints are created with TRACE_EVENT_FORMAT() which does not generate the needed bits to tie them into perf counters. For those events, don't create the 'id' file and fail ->profile_enable when their ID is specified through other means. Reported-by: Chris Mason Signed-off-by: Peter Zijlstra Cc: Steven Rostedt LKML-Reference: <1249497664.5890.4.camel@laptop> [ v2: fix build error in the !CONFIG_EVENT_PROFILE case ] Signed-off-by: Ingo Molnar --- include/linux/ftrace_event.h | 8 +++----- kernel/trace/trace_event_profile.c | 2 +- kernel/trace/trace_events.c | 2 +- 3 files changed, 5 insertions(+), 7 deletions(-) diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h index 5c093ffc655..d7cd193c227 100644 --- a/include/linux/ftrace_event.h +++ b/include/linux/ftrace_event.h @@ -119,11 +119,9 @@ struct ftrace_event_call { void *filter; void *mod; -#ifdef CONFIG_EVENT_PROFILE - atomic_t profile_count; - int (*profile_enable)(struct ftrace_event_call *); - void (*profile_disable)(struct ftrace_event_call *); -#endif + atomic_t profile_count; + int (*profile_enable)(struct ftrace_event_call *); + void (*profile_disable)(struct ftrace_event_call *); }; #define MAX_FILTER_PRED 32 diff --git a/kernel/trace/trace_event_profile.c b/kernel/trace/trace_event_profile.c index 5b5895afecf..11ba5bb4ed0 100644 --- a/kernel/trace/trace_event_profile.c +++ b/kernel/trace/trace_event_profile.c @@ -14,7 +14,7 @@ int ftrace_profile_enable(int event_id) mutex_lock(&event_mutex); list_for_each_entry(event, &ftrace_events, list) { - if (event->id == event_id) { + if (event->id == event_id && event->profile_enable) { ret = event->profile_enable(event); break; } diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c index 23d2972b22d..e75276a49cf 100644 --- a/kernel/trace/trace_events.c +++ b/kernel/trace/trace_events.c @@ -940,7 +940,7 @@ event_create_dir(struct ftrace_event_call *call, struct dentry *d_events, entry = trace_create_file("enable", 0644, call->dir, call, enable); - if (call->id) + if (call->id && call->profile_enable) entry = trace_create_file("id", 0444, call->dir, call, id); -- cgit v1.2.3 From 985fe845aea9cd56fd351800302270444556e45a Mon Sep 17 00:00:00 2001 From: Jerome Glisse Date: Wed, 29 Jul 2009 18:55:53 +0200 Subject: drm/radeon/kms: Fix caching mode selection for GTT object GTT object can either be cached,uncached or wc just let core ttm pick the best mode according to how the bo driver and GTT memory type was initialized. Signed-off-by: Jerome Glisse Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_object.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c index dd9ac2fed6d..e98cae3bf4a 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -106,7 +106,7 @@ static inline uint32_t radeon_object_flags_from_domain(uint32_t domain) flags |= TTM_PL_FLAG_VRAM | TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED; } if (domain & RADEON_GEM_DOMAIN_GTT) { - flags |= TTM_PL_FLAG_TT | TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED; + flags |= TTM_PL_FLAG_TT | TTM_PL_MASK_CACHING; } if (domain & RADEON_GEM_DOMAIN_CPU) { flags |= TTM_PL_FLAG_SYSTEM | TTM_PL_MASK_CACHING; -- cgit v1.2.3 From 194934785a846e0a7b1b674b7b475a9d0125d2f8 Mon Sep 17 00:00:00 2001 From: TJ Date: Mon, 3 Aug 2009 13:39:09 -0700 Subject: Input: wistron_btns - support Prestigio Wifi RF kill button The Prestigio 157, an old no-name clone laptop uses input keys very similar to the Wistron 1557/MS2141 with the addition of BIOS-controlled wireless radio frequency kill switch. This patch adds support for the RF kill switch control and adds manual identification of the model. The Prestigio does not expose any recognisable identity via dmidecode and so requires manual selection at module init using force=1 keymap=prestigio Signed-off-by: TJ Signed-off-by: Dmitry Torokhov --- drivers/input/misc/wistron_btns.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/input/misc/wistron_btns.c b/drivers/input/misc/wistron_btns.c index 26e17a9a22e..27ee976eb54 100644 --- a/drivers/input/misc/wistron_btns.c +++ b/drivers/input/misc/wistron_btns.c @@ -611,6 +611,20 @@ static struct key_entry keymap_wistron_generic[] __initdata = { { KE_END, 0 } }; +static struct key_entry keymap_prestigio[] __initdata = { + { KE_KEY, 0x11, {KEY_PROG1} }, + { KE_KEY, 0x12, {KEY_PROG2} }, + { KE_WIFI, 0x30 }, + { KE_KEY, 0x22, {KEY_REWIND} }, + { KE_KEY, 0x23, {KEY_FORWARD} }, + { KE_KEY, 0x24, {KEY_PLAYPAUSE} }, + { KE_KEY, 0x25, {KEY_STOPCD} }, + { KE_KEY, 0x31, {KEY_MAIL} }, + { KE_KEY, 0x36, {KEY_WWW} }, + { KE_END, 0 } +}; + + /* * If your machine is not here (which is currently rather likely), please send * a list of buttons and their key codes (reported when loading this module @@ -971,6 +985,8 @@ static int __init select_keymap(void) if (keymap_name != NULL) { if (strcmp (keymap_name, "1557/MS2141") == 0) keymap = keymap_wistron_ms2141; + else if (strcmp (keymap_name, "prestigio") == 0) + keymap = keymap_prestigio; else if (strcmp (keymap_name, "generic") == 0) keymap = keymap_wistron_generic; else { -- cgit v1.2.3 From d82f1c35348cebe2fb2d4a4d31ce0ab0769e3d93 Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Wed, 5 Aug 2009 01:24:41 -0700 Subject: Input: matrix_keypad - make matrix keymap size dynamic Remove assumption on the shift and size of rows/columns form matrix_keypad driver. Signed-off-by: Eric Miao Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/matrix_keypad.c | 18 +++++++++--------- include/linux/input/matrix_keypad.h | 13 +++++++------ 2 files changed, 16 insertions(+), 15 deletions(-) diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c index e9b2e7cb05b..541b981ff07 100644 --- a/drivers/input/keyboard/matrix_keypad.c +++ b/drivers/input/keyboard/matrix_keypad.c @@ -27,6 +27,7 @@ struct matrix_keypad { const struct matrix_keypad_platform_data *pdata; struct input_dev *input_dev; unsigned short *keycodes; + unsigned int row_shift; uint32_t last_key_state[MATRIX_MAX_COLS]; struct delayed_work work; @@ -136,7 +137,7 @@ static void matrix_keypad_scan(struct work_struct *work) if ((bits_changed & (1 << row)) == 0) continue; - code = (row << 4) + col; + code = MATRIX_SCAN_CODE(row, col, keypad->row_shift); input_event(input_dev, EV_MSC, MSC_SCAN, code); input_report_key(input_dev, keypad->keycodes[code], @@ -317,6 +318,7 @@ static int __devinit matrix_keypad_probe(struct platform_device *pdev) struct matrix_keypad *keypad; struct input_dev *input_dev; unsigned short *keycodes; + unsigned int row_shift; int i; int err; @@ -332,14 +334,11 @@ static int __devinit matrix_keypad_probe(struct platform_device *pdev) return -EINVAL; } - if (!keymap_data->max_keymap_size) { - dev_err(&pdev->dev, "invalid keymap data supplied\n"); - return -EINVAL; - } + row_shift = get_count_order(pdata->num_col_gpios); keypad = kzalloc(sizeof(struct matrix_keypad), GFP_KERNEL); - keycodes = kzalloc(keymap_data->max_keymap_size * - sizeof(keypad->keycodes), + keycodes = kzalloc((pdata->num_row_gpios << row_shift) * + sizeof(*keycodes), GFP_KERNEL); input_dev = input_allocate_device(); if (!keypad || !keycodes || !input_dev) { @@ -350,6 +349,7 @@ static int __devinit matrix_keypad_probe(struct platform_device *pdev) keypad->input_dev = input_dev; keypad->pdata = pdata; keypad->keycodes = keycodes; + keypad->row_shift = row_shift; keypad->stopped = true; INIT_DELAYED_WORK(&keypad->work, matrix_keypad_scan); spin_lock_init(&keypad->lock); @@ -363,7 +363,7 @@ static int __devinit matrix_keypad_probe(struct platform_device *pdev) input_dev->keycode = keycodes; input_dev->keycodesize = sizeof(*keycodes); - input_dev->keycodemax = keymap_data->max_keymap_size; + input_dev->keycodemax = pdata->num_row_gpios << keypad->row_shift; for (i = 0; i < keymap_data->keymap_size; i++) { unsigned int key = keymap_data->keymap[i]; @@ -371,7 +371,7 @@ static int __devinit matrix_keypad_probe(struct platform_device *pdev) unsigned int col = KEY_COL(key); unsigned short code = KEY_VAL(key); - keycodes[(row << 4) + col] = code; + keycodes[MATRIX_SCAN_CODE(row, col, row_shift)] = code; __set_bit(code, input_dev->keybit); } __clear_bit(KEY_RESERVED, input_dev->keybit); diff --git a/include/linux/input/matrix_keypad.h b/include/linux/input/matrix_keypad.h index 7964516c695..15d5903af2d 100644 --- a/include/linux/input/matrix_keypad.h +++ b/include/linux/input/matrix_keypad.h @@ -15,12 +15,13 @@ #define KEY_COL(k) (((k) >> 16) & 0xff) #define KEY_VAL(k) ((k) & 0xffff) +#define MATRIX_SCAN_CODE(row, col, row_shift) (((row) << (row_shift)) + (col)) + /** * struct matrix_keymap_data - keymap for matrix keyboards * @keymap: pointer to array of uint32 values encoded with KEY() macro * representing keymap * @keymap_size: number of entries (initialized) in this keymap - * @max_keymap_size: maximum size of keymap supported by the device * * This structure is supposed to be used by platform code to supply * keymaps to drivers that implement matrix-like keypads/keyboards. @@ -28,14 +29,13 @@ struct matrix_keymap_data { const uint32_t *keymap; unsigned int keymap_size; - unsigned int max_keymap_size; }; /** * struct matrix_keypad_platform_data - platform-dependent keypad data * @keymap_data: pointer to &matrix_keymap_data - * @row_gpios: array of gpio numbers reporesenting rows - * @col_gpios: array of gpio numbers reporesenting colums + * @row_gpios: pointer to array of gpio numbers representing rows + * @col_gpios: pointer to array of gpio numbers reporesenting colums * @num_row_gpios: actual number of row gpios used by device * @num_col_gpios: actual number of col gpios used by device * @col_scan_delay_us: delay, measured in microseconds, that is @@ -48,8 +48,9 @@ struct matrix_keymap_data { struct matrix_keypad_platform_data { const struct matrix_keymap_data *keymap_data; - unsigned int row_gpios[MATRIX_MAX_ROWS]; - unsigned int col_gpios[MATRIX_MAX_COLS]; + const unsigned int *row_gpios; + const unsigned int *col_gpios; + unsigned int num_row_gpios; unsigned int num_col_gpios; -- cgit v1.2.3 From 53a27b39ff4d2492f84b1fdc2f0047175f0b0b93 Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Wed, 5 Aug 2009 15:43:58 -0300 Subject: KVM: MMU: limit rmap chain length Otherwise the host can spend too long traversing an rmap chain, which happens under a spinlock. Cc: stable@kernel.org Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity --- arch/x86/kvm/mmu.c | 33 ++++++++++++++++++++++++++++----- 1 file changed, 28 insertions(+), 5 deletions(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 49a10d00830..0ef5bb2b404 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -489,16 +489,20 @@ static unsigned long *gfn_to_rmap(struct kvm *kvm, gfn_t gfn, int lpage) * * If rmapp bit zero is one, (then rmap & ~1) points to a struct kvm_rmap_desc * containing more mappings. + * + * Returns the number of rmap entries before the spte was added or zero if + * the spte was not added. + * */ -static void rmap_add(struct kvm_vcpu *vcpu, u64 *spte, gfn_t gfn, int lpage) +static int rmap_add(struct kvm_vcpu *vcpu, u64 *spte, gfn_t gfn, int lpage) { struct kvm_mmu_page *sp; struct kvm_rmap_desc *desc; unsigned long *rmapp; - int i; + int i, count = 0; if (!is_rmap_pte(*spte)) - return; + return count; gfn = unalias_gfn(vcpu->kvm, gfn); sp = page_header(__pa(spte)); sp->gfns[spte - sp->spt] = gfn; @@ -515,8 +519,10 @@ static void rmap_add(struct kvm_vcpu *vcpu, u64 *spte, gfn_t gfn, int lpage) } else { rmap_printk("rmap_add: %p %llx many->many\n", spte, *spte); desc = (struct kvm_rmap_desc *)(*rmapp & ~1ul); - while (desc->shadow_ptes[RMAP_EXT-1] && desc->more) + while (desc->shadow_ptes[RMAP_EXT-1] && desc->more) { desc = desc->more; + count += RMAP_EXT; + } if (desc->shadow_ptes[RMAP_EXT-1]) { desc->more = mmu_alloc_rmap_desc(vcpu); desc = desc->more; @@ -525,6 +531,7 @@ static void rmap_add(struct kvm_vcpu *vcpu, u64 *spte, gfn_t gfn, int lpage) ; desc->shadow_ptes[i] = spte; } + return count; } static void rmap_desc_remove_entry(unsigned long *rmapp, @@ -754,6 +761,19 @@ static int kvm_age_rmapp(struct kvm *kvm, unsigned long *rmapp) return young; } +#define RMAP_RECYCLE_THRESHOLD 1000 + +static void rmap_recycle(struct kvm_vcpu *vcpu, gfn_t gfn, int lpage) +{ + unsigned long *rmapp; + + gfn = unalias_gfn(vcpu->kvm, gfn); + rmapp = gfn_to_rmap(vcpu->kvm, gfn, lpage); + + kvm_unmap_rmapp(vcpu->kvm, rmapp); + kvm_flush_remote_tlbs(vcpu->kvm); +} + int kvm_age_hva(struct kvm *kvm, unsigned long hva) { return kvm_handle_hva(kvm, hva, kvm_age_rmapp); @@ -1741,6 +1761,7 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *shadow_pte, { int was_rmapped = 0; int was_writeble = is_writeble_pte(*shadow_pte); + int rmap_count; pgprintk("%s: spte %llx access %x write_fault %d" " user_fault %d gfn %lx\n", @@ -1782,9 +1803,11 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *shadow_pte, page_header_update_slot(vcpu->kvm, shadow_pte, gfn); if (!was_rmapped) { - rmap_add(vcpu, shadow_pte, gfn, largepage); + rmap_count = rmap_add(vcpu, shadow_pte, gfn, largepage); if (!is_rmap_pte(*shadow_pte)) kvm_release_pfn_clean(pfn); + if (rmap_count > RMAP_RECYCLE_THRESHOLD) + rmap_recycle(vcpu, gfn, largepage); } else { if (was_writeble) kvm_release_pfn_dirty(pfn); -- cgit v1.2.3 From c5b1525533c484238015c48c78f86d49a1bfb86b Mon Sep 17 00:00:00 2001 From: Sheng Yang Date: Thu, 6 Aug 2009 13:31:56 +0800 Subject: intel-iommu: Fix enabling snooping feature by mistake Two defects work together result in KVM device passthrough randomly can't work: 1. iommu_snooping is not initialized to zero when vm_iommu_init() called. So it is possible to get a random value. 2. One line added by commit 2c2e2c38("IOMMU Identity Mapping Support") change the code path, let it bypass domain_update_iommu_cap(), as well as missing the increment of domain iommu reference count. The latter is also likely to cause a leak of domains on repeated VMM assignment and deassignment. Signed-off-by: Sheng Yang Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index af7ff9b5aed..2314ad7ee5f 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -1505,7 +1505,6 @@ static int domain_context_mapping_one(struct dmar_domain *domain, int segment, } set_bit(num, iommu->domain_ids); - set_bit(iommu->seq_id, &domain->iommu_bmp); iommu->domains[num] = domain; id = num; } @@ -3409,6 +3408,7 @@ static int md_domain_init(struct dmar_domain *domain, int guest_width) domain->iommu_count = 0; domain->iommu_coherency = 0; + domain->iommu_snooping = 0; domain->max_addr = 0; /* always allocate the top pgd */ -- cgit v1.2.3 From e0d82a0a4e9841b787e6431ccfbb515546c55dc2 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 6 Aug 2009 21:16:44 +1000 Subject: perf_counter/powerpc: Check oprofile_cpu_type for NULL before using it If the current CPU doesn't support performance counters, cur_cpu_spec->oprofile_cpu_type can be NULL. The current perf_counter modules don't test for that case and would thus crash at boot time. Bug reported by David Woodhouse. Reported-by: David Woodhouse Signed-off-by: Benjamin Herrenschmidt Cc: Peter Zijlstra Signed-off-by: Paul Mackerras LKML-Reference: <19066.48028.446975.501454@cargo.ozlabs.ibm.com> Signed-off-by: Ingo Molnar --- arch/powerpc/kernel/mpc7450-pmu.c | 3 ++- arch/powerpc/kernel/power4-pmu.c | 3 ++- arch/powerpc/kernel/power5+-pmu.c | 5 +++-- arch/powerpc/kernel/power5-pmu.c | 3 ++- arch/powerpc/kernel/power6-pmu.c | 3 ++- arch/powerpc/kernel/power7-pmu.c | 3 ++- arch/powerpc/kernel/ppc970-pmu.c | 5 +++-- 7 files changed, 16 insertions(+), 9 deletions(-) diff --git a/arch/powerpc/kernel/mpc7450-pmu.c b/arch/powerpc/kernel/mpc7450-pmu.c index c244133c67a..cc466d039af 100644 --- a/arch/powerpc/kernel/mpc7450-pmu.c +++ b/arch/powerpc/kernel/mpc7450-pmu.c @@ -407,7 +407,8 @@ struct power_pmu mpc7450_pmu = { static int init_mpc7450_pmu(void) { - if (strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc/7450")) + if (!cur_cpu_spec->oprofile_cpu_type || + strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc/7450")) return -ENODEV; return register_power_pmu(&mpc7450_pmu); diff --git a/arch/powerpc/kernel/power4-pmu.c b/arch/powerpc/kernel/power4-pmu.c index db90b0c5c27..3c90a3d9173 100644 --- a/arch/powerpc/kernel/power4-pmu.c +++ b/arch/powerpc/kernel/power4-pmu.c @@ -606,7 +606,8 @@ static struct power_pmu power4_pmu = { static int init_power4_pmu(void) { - if (strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power4")) + if (!cur_cpu_spec->oprofile_cpu_type || + strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power4")) return -ENODEV; return register_power_pmu(&power4_pmu); diff --git a/arch/powerpc/kernel/power5+-pmu.c b/arch/powerpc/kernel/power5+-pmu.c index f4adca8e98a..31918af3e35 100644 --- a/arch/powerpc/kernel/power5+-pmu.c +++ b/arch/powerpc/kernel/power5+-pmu.c @@ -678,8 +678,9 @@ static struct power_pmu power5p_pmu = { static int init_power5p_pmu(void) { - if (strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power5+") - && strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power5++")) + if (!cur_cpu_spec->oprofile_cpu_type || + (strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power5+") + && strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power5++"))) return -ENODEV; return register_power_pmu(&power5p_pmu); diff --git a/arch/powerpc/kernel/power5-pmu.c b/arch/powerpc/kernel/power5-pmu.c index 29b2c6c0e83..867f6f66396 100644 --- a/arch/powerpc/kernel/power5-pmu.c +++ b/arch/powerpc/kernel/power5-pmu.c @@ -618,7 +618,8 @@ static struct power_pmu power5_pmu = { static int init_power5_pmu(void) { - if (strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power5")) + if (!cur_cpu_spec->oprofile_cpu_type || + strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power5")) return -ENODEV; return register_power_pmu(&power5_pmu); diff --git a/arch/powerpc/kernel/power6-pmu.c b/arch/powerpc/kernel/power6-pmu.c index 09ae5bf5bda..fa21890531d 100644 --- a/arch/powerpc/kernel/power6-pmu.c +++ b/arch/powerpc/kernel/power6-pmu.c @@ -537,7 +537,8 @@ static struct power_pmu power6_pmu = { static int init_power6_pmu(void) { - if (strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power6")) + if (!cur_cpu_spec->oprofile_cpu_type || + strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power6")) return -ENODEV; return register_power_pmu(&power6_pmu); diff --git a/arch/powerpc/kernel/power7-pmu.c b/arch/powerpc/kernel/power7-pmu.c index 5a9f5cbd40a..388cf57ad82 100644 --- a/arch/powerpc/kernel/power7-pmu.c +++ b/arch/powerpc/kernel/power7-pmu.c @@ -366,7 +366,8 @@ static struct power_pmu power7_pmu = { static int init_power7_pmu(void) { - if (strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power7")) + if (!cur_cpu_spec->oprofile_cpu_type || + strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power7")) return -ENODEV; return register_power_pmu(&power7_pmu); diff --git a/arch/powerpc/kernel/ppc970-pmu.c b/arch/powerpc/kernel/ppc970-pmu.c index 833097ac45d..75dccb71a04 100644 --- a/arch/powerpc/kernel/ppc970-pmu.c +++ b/arch/powerpc/kernel/ppc970-pmu.c @@ -488,8 +488,9 @@ static struct power_pmu ppc970_pmu = { static int init_ppc970_pmu(void) { - if (strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/970") - && strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/970MP")) + if (!cur_cpu_spec->oprofile_cpu_type || + (strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/970") + && strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/970MP"))) return -ENODEV; return register_power_pmu(&ppc970_pmu); -- cgit v1.2.3 From 469535a598f28c13a2a42037e1b778f671af1d16 Mon Sep 17 00:00:00 2001 From: Robert Richter Date: Thu, 30 Jul 2009 19:19:18 +0200 Subject: ring-buffer: Fix advance of reader in rb_buffer_peek() When calling rb_buffer_peek() from ring_buffer_consume() and a padding event is returned, the function rb_advance_reader() is called twice. This may lead to missing samples or under high workloads to the warning below. This patch fixes this. If a padding event is returned by rb_buffer_peek() it will be consumed by the calling function now. Also, I simplified some code in ring_buffer_consume(). ------------[ cut here ]------------ WARNING: at /dev/shm/.source/linux/kernel/trace/ring_buffer.c:2289 rb_advance_reader+0x2e/0xc5() Hardware name: Anaheim Modules linked in: Pid: 29, comm: events/2 Tainted: G W 2.6.31-rc3-oprofile-x86_64-standard-00059-g5050dc2 #1 Call Trace: [] ? rb_advance_reader+0x2e/0xc5 [] warn_slowpath_common+0x77/0x8f [] warn_slowpath_null+0xf/0x11 [] rb_advance_reader+0x2e/0xc5 [] ring_buffer_consume+0xa0/0xd2 [] op_cpu_buffer_read_entry+0x21/0x9e [] ? __find_get_block+0x4b/0x165 [] sync_buffer+0xa5/0x401 [] ? __find_get_block+0x4b/0x165 [] ? wq_sync_buffer+0x0/0x78 [] wq_sync_buffer+0x5b/0x78 [] worker_thread+0x113/0x1ac [] ? autoremove_wake_function+0x0/0x38 [] ? worker_thread+0x0/0x1ac [] kthread+0x88/0x92 [] child_rip+0xa/0x20 [] ? kthread+0x0/0x92 [] ? child_rip+0x0/0x20 ---[ end trace f561c0a58fcc89bd ]--- Cc: Steven Rostedt Cc: Signed-off-by: Robert Richter Signed-off-by: Ingo Molnar --- kernel/trace/ring_buffer.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 2606cee433d..d4d3580a894 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -2383,7 +2383,6 @@ rb_buffer_peek(struct ring_buffer *buffer, int cpu, u64 *ts) * the box. Return the padding, and we will release * the current locks, and try again. */ - rb_advance_reader(cpu_buffer); return event; case RINGBUF_TYPE_TIME_EXTEND: @@ -2519,6 +2518,8 @@ ring_buffer_peek(struct ring_buffer *buffer, int cpu, u64 *ts) if (dolock) spin_lock(&cpu_buffer->reader_lock); event = rb_buffer_peek(buffer, cpu, ts); + if (event && event->type_len == RINGBUF_TYPE_PADDING) + rb_advance_reader(cpu_buffer); if (dolock) spin_unlock(&cpu_buffer->reader_lock); local_irq_restore(flags); @@ -2590,12 +2591,9 @@ ring_buffer_consume(struct ring_buffer *buffer, int cpu, u64 *ts) spin_lock(&cpu_buffer->reader_lock); event = rb_buffer_peek(buffer, cpu, ts); - if (!event) - goto out_unlock; - - rb_advance_reader(cpu_buffer); + if (event) + rb_advance_reader(cpu_buffer); - out_unlock: if (dolock) spin_unlock(&cpu_buffer->reader_lock); local_irq_restore(flags); -- cgit v1.2.3 From 4d1e00a8af426500edfb8643fa6c375b89f1f804 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Wed, 5 Aug 2009 19:02:49 -0300 Subject: perf symbol: Fix symbol parsing in certain cases: use the build-id as a symlink In some cases distros have binaries and debuginfo in weird places: [root@doppio tuna]# ls -la /usr/lib64/{xulrunner-1.9.1/xulrunner-stub,firefox-3.5.2/firefox} -rwxr-xr-x 1 root root 90024 2009-08-03 19:45 /usr/lib64/firefox-3.5.2/firefox -rwxr-xr-x 1 root root 90024 2009-08-03 18:23 /usr/lib64/xulrunner-1.9.1/xulrunner-stub [root@doppio tuna]# sha1sum /usr/lib64/{xulrunner-1.9.1/xulrunner-stub,firefox-3.5.2/firefox} 19a858077d263d5de22c9c5da250d3e4396ae739 /usr/lib64/xulrunner-1.9.1/xulrunner-stub 19a858077d263d5de22c9c5da250d3e4396ae739 /usr/lib64/firefox-3.5.2/firefox [root@doppio tuna]# rpm -qf /usr/lib64/{xulrunner-1.9.1/xulrunner-stub,firefox-3.5.2/firefox} xulrunner-1.9.1.2-1.fc11.x86_64 firefox-3.5.2-2.fc11.x86_64 [root@doppio tuna]# ls -la /usr/lib/debug/{usr/lib64/xulrunner-1.9.1/xulrunner-stub,usr/lib64/firefox-3.5.2/firefox}.debug ls: cannot access /usr/lib/debug/usr/lib64/firefox-3.5.2/firefox.debug: No such file or directory -rwxr-xr-x 1 root root 403608 2009-08-03 18:22 /usr/lib/debug/usr/lib64/xulrunner-1.9.1/xulrunner-stub.debug Seemingly we don't have a .symtab when we actually can find it if we use the .note.gnu.build-id ELF section put in place by some distros. Use it and find the symbols we need. Signed-off-by: Arnaldo Carvalho de Melo Acked-by: Peter Zijlstra LKML-Reference: Signed-off-by: Ingo Molnar --- tools/perf/util/symbol.c | 76 ++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 73 insertions(+), 3 deletions(-) diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 0580b94785e..16ddca20294 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -661,10 +661,69 @@ out_close: return err; } +#define BUILD_ID_SIZE 128 + +static char *dso__read_build_id(struct dso *self, int verbose) +{ + int i; + GElf_Ehdr ehdr; + GElf_Shdr shdr; + Elf_Data *build_id_data; + Elf_Scn *sec; + char *build_id = NULL, *bid; + unsigned char *raw; + Elf *elf; + int fd = open(self->name, O_RDONLY); + + if (fd < 0) + goto out; + + elf = elf_begin(fd, ELF_C_READ_MMAP, NULL); + if (elf == NULL) { + if (verbose) + fprintf(stderr, "%s: cannot read %s ELF file.\n", + __func__, self->name); + goto out_close; + } + + if (gelf_getehdr(elf, &ehdr) == NULL) { + if (verbose) + fprintf(stderr, "%s: cannot get elf header.\n", __func__); + goto out_elf_end; + } + + sec = elf_section_by_name(elf, &ehdr, &shdr, ".note.gnu.build-id", NULL); + if (sec == NULL) + goto out_elf_end; + + build_id_data = elf_getdata(sec, NULL); + if (build_id_data == NULL) + goto out_elf_end; + build_id = malloc(BUILD_ID_SIZE); + if (build_id == NULL) + goto out_elf_end; + raw = build_id_data->d_buf + 16; + bid = build_id; + + for (i = 0; i < 20; ++i) { + sprintf(bid, "%02x", *raw); + ++raw; + bid += 2; + } + if (verbose) + printf("%s(%s): %s\n", __func__, self->name, build_id); +out_elf_end: + elf_end(elf); +out_close: + close(fd); +out: + return build_id; +} + int dso__load(struct dso *self, symbol_filter_t filter, int verbose) { - int size = strlen(self->name) + sizeof("/usr/lib/debug%s.debug"); - char *name = malloc(size); + int size = PATH_MAX; + char *name = malloc(size), *build_id = NULL; int variant = 0; int ret = -1; int fd; @@ -686,7 +745,18 @@ more: case 1: /* Ubuntu */ snprintf(name, size, "/usr/lib/debug%s", self->name); break; - case 2: /* Sane people */ + case 2: + build_id = dso__read_build_id(self, verbose); + if (build_id != NULL) { + snprintf(name, size, + "/usr/lib/debug/.build-id/%.2s/%s.debug", + build_id, build_id + 2); + free(build_id); + break; + } + variant++; + /* Fall thru */ + case 3: /* Sane people */ snprintf(name, size, "%s", self->name); break; -- cgit v1.2.3 From 9424edc2da097c8589fcc24a72552d33e54be161 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Wed, 5 Aug 2009 14:05:16 +0200 Subject: perf: Auto-detect libelf Adds autodetection for libelf as well, and simplifies the libbfd code. Furthermore, fail make with an error when libelf is not found and warn about the lack of libbfd. Also provide an option to build a 32bit version even though you might be running a 64bit kernel. Signed-off-by: Peter Zijlstra Signed-off-by: Ingo Molnar --- tools/perf/Makefile | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/tools/perf/Makefile b/tools/perf/Makefile index ff905aceb4f..1916e44b9bb 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -158,8 +158,10 @@ uname_P := $(shell sh -c 'uname -p 2>/dev/null || echo not') uname_V := $(shell sh -c 'uname -v 2>/dev/null || echo not') # If we're on a 64-bit kernel, use -m64 -ifneq ($(patsubst %64,%,$(uname_M)),$(uname_M)) - M64 := -m64 +ifndef NO_64BIT + ifneq ($(patsubst %64,%,$(uname_M)),$(uname_M)) + M64 := -m64 + endif endif # CFLAGS and LDFLAGS are for the users to override from the command line. @@ -373,19 +375,24 @@ ifeq ($(uname_S),Darwin) PTHREAD_LIBS = endif +ifneq ($(shell sh -c "(echo '\#include '; echo 'int main(void) { Elf * elf = elf_begin(0, ELF_C_READ_MMAP, 0); return (long)elf; }') | $(CC) -x c - $(ALL_CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -o /dev/null $(ALL_LDFLAGS) > /dev/null 2>&1 && echo y"), y) + msg := $(error No libelf.h/libelf found, please install libelf-dev/elfutils-libelf-devel); +endif + ifdef NO_DEMANGLE BASIC_CFLAGS += -DNO_DEMANGLE else - has_bfd := $(shell sh -c "(echo '\#include '; echo '\#include '; echo '\#ifndef DMGL_PARAMS'; echo '\#define DMGL_PARAMS (1 << 0)'; echo '\#define DMGL_ANSI (1 << 1)'; echo '\#endif'; echo 'int main(int argc, char **argv) { bfd_demangle(NULL, argv[0], DMGL_PARAMS | DMGL_ANSI); return 0; }') | gcc -x c - -lbfd > /dev/null 2>&1 && echo y") + has_bfd := $(shell sh -c "(echo '\#include '; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o /dev/null $(ALL_LDFLAGS) -lbfd > /dev/null 2>&1 && echo y") - has_bfd_iberty := $(shell sh -c "(echo '\#include '; echo '\#include '; echo '\#ifndef DMGL_PARAMS'; echo '\#define DMGL_PARAMS (1 << 0)'; echo '\#define DMGL_ANSI (1 << 1)'; echo '\#endif'; echo 'int main(int argc, char **argv) { bfd_demangle(NULL, argv[0], DMGL_PARAMS | DMGL_ANSI); return 0; }') | gcc -x c - -lbfd -liberty > /dev/null 2>&1 && echo y") + has_bfd_iberty := $(shell sh -c "(echo '\#include '; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o /dev/null $(ALL_LDFLAGS) -lbfd -liberty > /dev/null 2>&1 && echo y") ifeq ($(has_bfd),y) EXTLIBS += -lbfd else ifeq ($(has_bfd_iberty),y) EXTLIBS += -lbfd -liberty else + msg := $(warning No bfd.h/libbfd found, install binutils-dev[el] to gain symbol demangling) BASIC_CFLAGS += -DNO_DEMANGLE endif endif -- cgit v1.2.3 From 1054598cab8674438675085fae459e960eb10799 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Thu, 6 Aug 2009 18:06:26 +0200 Subject: perf_counter: Fix double list iteration in per task precise stats Brice Goglin reported this crash with per task precise stats: > I finally managed to test the threaded perfcounter statistics (thanks a > lot for implementing it). I am running 2.6.31-rc5 (with the AMD > magny-cours patches but I don't think they matter here). I am trying to > measure local/remote memory accesses per thread during the well-known > stream benchmark. It's compiled with OpenMP using 16 threads on a > quad-socket quad-core barcelona machine. > > Command line is: > /mnt/scratch/bgoglin/cpunode/linux-2.6.31/tools/perf/perf record -f -s > -e r1000001e0 -e r1000002e0 -e r1000004e0 -e r1000008e0 ./stream > > It seems to work fine with a single -e on the command line > while it crashes when there are at least 2 of them. > It seems to work fine without -s as well. A silly copy-paste resulted in a messed up iteration which would cause the OOPS. Reported-by: Brice Goglin Signed-off-by: Peter Zijlstra Tested-by: Brice Goglin LKML-Reference: <1249574786.32113.550.camel@twins> Signed-off-by: Ingo Molnar --- kernel/perf_counter.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 199ed477131..673c1aaf733 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -1104,7 +1104,7 @@ static void perf_counter_sync_stat(struct perf_counter_context *ctx, __perf_counter_sync_stat(counter, next_counter); counter = list_next_entry(counter, event_entry); - next_counter = list_next_entry(counter, event_entry); + next_counter = list_next_entry(next_counter, event_entry); } } -- cgit v1.2.3 From 7dbdee2e9a2ac42ea5135801bcc9d1a8e3f672aa Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Thu, 6 Aug 2009 19:53:18 -0400 Subject: tracing: Fix recordmcount.pl to handle sections with only weak functions Roland Dreier found that a section that contained only a weak function in one of the staging drivers and this caused recordmcount.pl to spit out a warning and fail. Although it is strange that a driver would have a weak function, and this function only be used in one place, it should not be something to make recordmcount.pl fail. This patch fixes the issue in a simple manner: if only weak functions exist in a section, then that section will not be recorded. Reported-by: Roland Dreier Signed-off-by: Steven Rostedt Signed-off-by: Ingo Molnar --- scripts/recordmcount.pl | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl index 4889c44d71b..911ba7ffab8 100755 --- a/scripts/recordmcount.pl +++ b/scripts/recordmcount.pl @@ -393,7 +393,7 @@ while () { $read_function = 0; } # print out any recorded offsets - update_funcs() if ($text_found); + update_funcs() if (defined($ref_func)); # reset all markers and arrays $text_found = 0; @@ -444,7 +444,7 @@ while () { } # dump out anymore offsets that may have been found -update_funcs() if ($text_found); +update_funcs() if (defined($ref_func)); # If we did not find any mcount callers, we are done (do nothing). if (!$opened) { -- cgit v1.2.3 From 677c1dd706d9cc384730cbd52baf821923d8be9b Mon Sep 17 00:00:00 2001 From: Hendrik Brueckner Date: Fri, 7 Aug 2009 10:39:24 +0200 Subject: [S390] kernel: Storing machine flags early in lowcore Currently, the machine_flags are stored late in the startup initialization which results in failing machine type checks (e.g. for MACHINE_IS_VM). To allow these checks, store the machine flags in the lowcore when the machine type has been detected. Moving the machine_flags to the lowcore has been introduced with git commit 25097bf153391f7be4c591d47061b3dc4990dac2 Signed-off-by: Hendrik Brueckner Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/early.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index 8d15314381e..cae14c49951 100644 --- a/arch/s390/kernel/early.c +++ b/arch/s390/kernel/early.c @@ -208,6 +208,9 @@ static noinline __init void detect_machine_type(void) machine_flags |= MACHINE_FLAG_KVM; else machine_flags |= MACHINE_FLAG_VM; + + /* Store machine flags for setting up lowcore early */ + S390_lowcore.machine_flags = machine_flags; } static __init void early_pgm_check_handler(void) -- cgit v1.2.3 From 53cb780adbe69df90c8dc23e992ce40455e687c3 Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Fri, 7 Aug 2009 10:39:25 +0200 Subject: [S390] KVM: Read buffer overflow Check whether index is within bounds before testing the element. Signed-off-by: Roel Kluin Signed-off-by: Martin Schwidefsky --- arch/s390/kvm/sigp.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c index 36678835034..0ef81d6776e 100644 --- a/arch/s390/kvm/sigp.c +++ b/arch/s390/kvm/sigp.c @@ -169,7 +169,7 @@ static int __sigp_set_prefix(struct kvm_vcpu *vcpu, u16 cpu_addr, u32 address, unsigned long *reg) { struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int; - struct kvm_s390_local_interrupt *li; + struct kvm_s390_local_interrupt *li = NULL; struct kvm_s390_interrupt_info *inti; int rc; u8 tmp; @@ -189,9 +189,10 @@ static int __sigp_set_prefix(struct kvm_vcpu *vcpu, u16 cpu_addr, u32 address, return 2; /* busy */ spin_lock(&fi->lock); - li = fi->local_int[cpu_addr]; + if (cpu_addr < KVM_MAX_VCPUS) + li = fi->local_int[cpu_addr]; - if ((cpu_addr >= KVM_MAX_VCPUS) || (li == NULL)) { + if (li == NULL) { rc = 1; /* incorrect state */ *reg &= SIGP_STAT_INCORRECT_STATE; kfree(inti); -- cgit v1.2.3 From 9795447f71324d8f14c19ed68b43c883135c3f59 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Fri, 7 Aug 2009 16:37:10 +0800 Subject: lockdep: Fix file mode of lock_stat /proc/lock_stat is writable. Signed-off-by: Li Zefan Cc: Peter Zijlstra LKML-Reference: <4A7BE7B6.10904@cn.fujitsu.com> Signed-off-by: Ingo Molnar --- kernel/lockdep_proc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/lockdep_proc.c b/kernel/lockdep_proc.c index d7135aa2d2c..e94caa666db 100644 --- a/kernel/lockdep_proc.c +++ b/kernel/lockdep_proc.c @@ -758,7 +758,8 @@ static int __init lockdep_proc_init(void) &proc_lockdep_stats_operations); #ifdef CONFIG_LOCK_STAT - proc_create("lock_stat", S_IRUSR, NULL, &proc_lock_stat_operations); + proc_create("lock_stat", S_IRUSR | S_IWUSR, NULL, + &proc_lock_stat_operations); #endif return 0; -- cgit v1.2.3 From 0e692a94e378628b7d527260ad939894454bcca8 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Fri, 7 Aug 2009 15:10:54 +0800 Subject: lockdep: Fix typos in documentation s/head/held Signed-off-by: Li Zefan Cc: Peter Zijlstra LKML-Reference: <4A7BD37E.9060806@cn.fujitsu.com> Signed-off-by: Ingo Molnar --- Documentation/lockdep-design.txt | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/Documentation/lockdep-design.txt b/Documentation/lockdep-design.txt index e20d913d591..abf768c681e 100644 --- a/Documentation/lockdep-design.txt +++ b/Documentation/lockdep-design.txt @@ -30,9 +30,9 @@ State The validator tracks lock-class usage history into 4n + 1 separate state bits: - 'ever held in STATE context' -- 'ever head as readlock in STATE context' -- 'ever head with STATE enabled' -- 'ever head as readlock with STATE enabled' +- 'ever held as readlock in STATE context' +- 'ever held with STATE enabled' +- 'ever held as readlock with STATE enabled' Where STATE can be either one of (kernel/lockdep_states.h) - hardirq -- cgit v1.2.3 From 17332925d7b11bb6c2d0c49450ae58dd836005da Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Fri, 7 Aug 2009 11:03:26 +1000 Subject: drm/radeon/kms: setup MC/VRAM the same way for suspend/resume we should align the GTT after VRAM no matter what, as we can come back from resume and put in a different place and bad things happen. Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_device.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index a162ade74b7..9ff6dcb97f9 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -152,7 +152,9 @@ int radeon_mc_setup(struct radeon_device *rdev) } } else { rdev->mc.vram_location = 0; - rdev->mc.gtt_location = rdev->mc.mc_vram_size; + tmp = rdev->mc.mc_vram_size; + tmp = (tmp + rdev->mc.gtt_size - 1) & ~(rdev->mc.gtt_size - 1); + rdev->mc.gtt_location = tmp; } DRM_INFO("radeon: VRAM %uM\n", rdev->mc.real_vram_size >> 20); DRM_INFO("radeon: VRAM from 0x%08X to 0x%08X\n", -- cgit v1.2.3 From bd3f02212d6a457267e0c9c02c426151c436d9d4 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 7 Aug 2009 12:49:29 +0200 Subject: ring-buffer: Fix memleak in ring_buffer_free() I noticed oprofile memleaked in linux-2.6 current tree, and tracked this ring-buffer leak. Signed-off-by: Eric Dumazet LKML-Reference: <4A7C06B9.2090302@gmail.com> Cc: stable@kernel.org Signed-off-by: Steven Rostedt --- kernel/trace/ring_buffer.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index d4d3580a894..a330513d96c 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -735,6 +735,7 @@ ring_buffer_free(struct ring_buffer *buffer) put_online_cpus(); + kfree(buffer->buffers); free_cpumask_var(buffer->cpumask); kfree(buffer); -- cgit v1.2.3 From 54e346215e4fe2ca8c94c54e546cc61902060510 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 7 Aug 2009 14:38:25 -0300 Subject: vfs: fix inode_init_always calling convention Currently inode_init_always calls into ->destroy_inode if the additional initialization fails. That's not only counter-intuitive because inode_init_always did not allocate the inode structure, but in case of XFS it's actively harmful as ->destroy_inode might delete the inode from a radix-tree that has never been added. This in turn might end up deleting the inode for the same inum that has been instanciated by another process and cause lots of cause subtile problems. Also in the case of re-initializing a reclaimable inode in XFS it would free an inode we still want to keep alive. Signed-off-by: Christoph Hellwig Reviewed-by: Eric Sandeen --- fs/inode.c | 30 +++++++++++++++++------------- fs/xfs/xfs_iget.c | 17 +++++------------ include/linux/fs.h | 2 +- 3 files changed, 23 insertions(+), 26 deletions(-) diff --git a/fs/inode.c b/fs/inode.c index 901bad1e5f1..af2c05235cc 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -120,12 +120,11 @@ static void wake_up_inode(struct inode *inode) * These are initializations that need to be done on every inode * allocation as the fields are not initialised by slab allocation. */ -struct inode *inode_init_always(struct super_block *sb, struct inode *inode) +int inode_init_always(struct super_block *sb, struct inode *inode) { static const struct address_space_operations empty_aops; static struct inode_operations empty_iops; static const struct file_operations empty_fops; - struct address_space *const mapping = &inode->i_data; inode->i_sb = sb; @@ -152,7 +151,7 @@ struct inode *inode_init_always(struct super_block *sb, struct inode *inode) inode->dirtied_when = 0; if (security_inode_alloc(inode)) - goto out_free_inode; + goto out; /* allocate and initialize an i_integrity */ if (ima_inode_alloc(inode)) @@ -198,16 +197,12 @@ struct inode *inode_init_always(struct super_block *sb, struct inode *inode) inode->i_fsnotify_mask = 0; #endif - return inode; + return 0; out_free_security: security_inode_free(inode); -out_free_inode: - if (inode->i_sb->s_op->destroy_inode) - inode->i_sb->s_op->destroy_inode(inode); - else - kmem_cache_free(inode_cachep, (inode)); - return NULL; +out: + return -ENOMEM; } EXPORT_SYMBOL(inode_init_always); @@ -220,9 +215,18 @@ static struct inode *alloc_inode(struct super_block *sb) else inode = kmem_cache_alloc(inode_cachep, GFP_KERNEL); - if (inode) - return inode_init_always(sb, inode); - return NULL; + if (!inode) + return NULL; + + if (unlikely(inode_init_always(sb, inode))) { + if (inode->i_sb->s_op->destroy_inode) + inode->i_sb->s_op->destroy_inode(inode); + else + kmem_cache_free(inode_cachep, inode); + return NULL; + } + + return inode; } void destroy_inode(struct inode *inode) diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c index 5fcec6f020a..719c85b155f 100644 --- a/fs/xfs/xfs_iget.c +++ b/fs/xfs/xfs_iget.c @@ -64,6 +64,10 @@ xfs_inode_alloc( ip = kmem_zone_alloc(xfs_inode_zone, KM_SLEEP); if (!ip) return NULL; + if (inode_init_always(mp->m_super, VFS_I(ip))) { + kmem_zone_free(xfs_inode_zone, ip); + return NULL; + } ASSERT(atomic_read(&ip->i_iocount) == 0); ASSERT(atomic_read(&ip->i_pincount) == 0); @@ -105,17 +109,6 @@ xfs_inode_alloc( #ifdef XFS_DIR2_TRACE ip->i_dir_trace = ktrace_alloc(XFS_DIR2_KTRACE_SIZE, KM_NOFS); #endif - /* - * Now initialise the VFS inode. We do this after the xfs_inode - * initialisation as internal failures will result in ->destroy_inode - * being called and that will pass down through the reclaim path and - * free the XFS inode. This path requires the XFS inode to already be - * initialised. Hence if this call fails, the xfs_inode has already - * been freed and we should not reference it at all in the error - * handling. - */ - if (!inode_init_always(mp->m_super, VFS_I(ip))) - return NULL; /* prevent anyone from using this yet */ VFS_I(ip)->i_state = I_NEW|I_LOCK; @@ -167,7 +160,7 @@ xfs_iget_cache_hit( * errors cleanly, then tag it so it can be set up correctly * later. */ - if (!inode_init_always(mp->m_super, VFS_I(ip))) { + if (inode_init_always(mp->m_super, VFS_I(ip))) { error = ENOMEM; goto out_error; } diff --git a/include/linux/fs.h b/include/linux/fs.h index a36ffa5a77a..0c3b5e58a98 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2137,7 +2137,7 @@ extern loff_t default_llseek(struct file *file, loff_t offset, int origin); extern loff_t vfs_llseek(struct file *file, loff_t offset, int origin); -extern struct inode * inode_init_always(struct super_block *, struct inode *); +extern int inode_init_always(struct super_block *, struct inode *); extern void inode_init_once(struct inode *); extern void inode_add_to_lists(struct super_block *, struct inode *); extern void iput(struct inode *); -- cgit v1.2.3 From 2e00c97e2c1d2ffc9e26252ca26b237678b0b772 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 7 Aug 2009 14:38:29 -0300 Subject: vfs: add __destroy_inode When we want to tear down an inode that lost the add to the cache race in XFS we must not call into ->destroy_inode because that would delete the inode that won the race from the inode cache radix tree. This patch provides the __destroy_inode helper needed to fix this, the actual fix will be in th next patch. As XFS was the only reason destroy_inode was exported we shift the export to the new __destroy_inode. Signed-off-by: Christoph Hellwig Reviewed-by: Eric Sandeen --- fs/inode.c | 10 +++++++--- include/linux/fs.h | 1 + 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/fs/inode.c b/fs/inode.c index af2c05235cc..ae7b67e4866 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -229,7 +229,7 @@ static struct inode *alloc_inode(struct super_block *sb) return inode; } -void destroy_inode(struct inode *inode) +void __destroy_inode(struct inode *inode) { BUG_ON(inode_has_buffers(inode)); ima_inode_free(inode); @@ -241,13 +241,17 @@ void destroy_inode(struct inode *inode) if (inode->i_default_acl && inode->i_default_acl != ACL_NOT_CACHED) posix_acl_release(inode->i_default_acl); #endif +} +EXPORT_SYMBOL(__destroy_inode); + +void destroy_inode(struct inode *inode) +{ + __destroy_inode(inode); if (inode->i_sb->s_op->destroy_inode) inode->i_sb->s_op->destroy_inode(inode); else kmem_cache_free(inode_cachep, (inode)); } -EXPORT_SYMBOL(destroy_inode); - /* * These are initializations that only need to be done diff --git a/include/linux/fs.h b/include/linux/fs.h index 0c3b5e58a98..67888a9e065 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2164,6 +2164,7 @@ extern void __iget(struct inode * inode); extern void iget_failed(struct inode *); extern void clear_inode(struct inode *); extern void destroy_inode(struct inode *); +extern void __destroy_inode(struct inode *); extern struct inode *new_inode(struct super_block *); extern int should_remove_suid(struct dentry *); extern int file_remove_suid(struct file *); -- cgit v1.2.3 From b36ec0428a06fcbdb67d61e9e664154e5dd9a8c7 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 7 Aug 2009 14:38:34 -0300 Subject: xfs: fix freeing of inodes not yet added to the inode cache When freeing an inode that lost race getting added to the inode cache we must not call into ->destroy_inode, because that would delete the inode that won the race from the inode cache radix tree. This patch uses splits a new xfs_inode_free helper out of xfs_ireclaim and uses that plus __destroy_inode to make sure we really only free the memory allocted for the inode that lost the race, and not mess with the inode cache state. Signed-off-by: Christoph Hellwig Reviewed-by: Eric Sandeen Reported-by: Alex Samad Reported-by: Andrew Randrianasulu Reported-by: Stephane Reported-by: Tommy Reported-by: Miah Gregory Reported-by: Gabriel Barazer Reported-by: Leandro Lucarella Reported-by: Daniel Burr Reported-by: Nickolay Reported-by: Michael Guntsche Reported-by: Dan Carley Reported-by: Michael Ole Olsen Reported-by: Michael Weissenbacher Reported-by: Martin Spott Reported-by: Christian Kujau Tested-by: Michael Guntsche Tested-by: Dan Carley Tested-by: Christian Kujau --- fs/xfs/xfs_iget.c | 125 +++++++++++++++++++++++++++++------------------------ fs/xfs/xfs_inode.h | 17 -------- 2 files changed, 68 insertions(+), 74 deletions(-) diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c index 719c85b155f..34ec86923f7 100644 --- a/fs/xfs/xfs_iget.c +++ b/fs/xfs/xfs_iget.c @@ -116,6 +116,71 @@ xfs_inode_alloc( return ip; } +STATIC void +xfs_inode_free( + struct xfs_inode *ip) +{ + switch (ip->i_d.di_mode & S_IFMT) { + case S_IFREG: + case S_IFDIR: + case S_IFLNK: + xfs_idestroy_fork(ip, XFS_DATA_FORK); + break; + } + + if (ip->i_afp) + xfs_idestroy_fork(ip, XFS_ATTR_FORK); + +#ifdef XFS_INODE_TRACE + ktrace_free(ip->i_trace); +#endif +#ifdef XFS_BMAP_TRACE + ktrace_free(ip->i_xtrace); +#endif +#ifdef XFS_BTREE_TRACE + ktrace_free(ip->i_btrace); +#endif +#ifdef XFS_RW_TRACE + ktrace_free(ip->i_rwtrace); +#endif +#ifdef XFS_ILOCK_TRACE + ktrace_free(ip->i_lock_trace); +#endif +#ifdef XFS_DIR2_TRACE + ktrace_free(ip->i_dir_trace); +#endif + + if (ip->i_itemp) { + /* + * Only if we are shutting down the fs will we see an + * inode still in the AIL. If it is there, we should remove + * it to prevent a use-after-free from occurring. + */ + xfs_log_item_t *lip = &ip->i_itemp->ili_item; + struct xfs_ail *ailp = lip->li_ailp; + + ASSERT(((lip->li_flags & XFS_LI_IN_AIL) == 0) || + XFS_FORCED_SHUTDOWN(ip->i_mount)); + if (lip->li_flags & XFS_LI_IN_AIL) { + spin_lock(&ailp->xa_lock); + if (lip->li_flags & XFS_LI_IN_AIL) + xfs_trans_ail_delete(ailp, lip); + else + spin_unlock(&ailp->xa_lock); + } + xfs_inode_item_destroy(ip); + ip->i_itemp = NULL; + } + + /* asserts to verify all state is correct here */ + ASSERT(atomic_read(&ip->i_iocount) == 0); + ASSERT(atomic_read(&ip->i_pincount) == 0); + ASSERT(!spin_is_locked(&ip->i_flags_lock)); + ASSERT(completion_done(&ip->i_flush)); + + kmem_zone_free(xfs_inode_zone, ip); +} + /* * Check the validity of the inode we just found it the cache */ @@ -292,7 +357,8 @@ out_preload_end: if (lock_flags) xfs_iunlock(ip, lock_flags); out_destroy: - xfs_destroy_inode(ip); + __destroy_inode(VFS_I(ip)); + xfs_inode_free(ip); return error; } @@ -497,62 +563,7 @@ xfs_ireclaim( xfs_qm_dqdetach(ip); xfs_iunlock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL); - switch (ip->i_d.di_mode & S_IFMT) { - case S_IFREG: - case S_IFDIR: - case S_IFLNK: - xfs_idestroy_fork(ip, XFS_DATA_FORK); - break; - } - - if (ip->i_afp) - xfs_idestroy_fork(ip, XFS_ATTR_FORK); - -#ifdef XFS_INODE_TRACE - ktrace_free(ip->i_trace); -#endif -#ifdef XFS_BMAP_TRACE - ktrace_free(ip->i_xtrace); -#endif -#ifdef XFS_BTREE_TRACE - ktrace_free(ip->i_btrace); -#endif -#ifdef XFS_RW_TRACE - ktrace_free(ip->i_rwtrace); -#endif -#ifdef XFS_ILOCK_TRACE - ktrace_free(ip->i_lock_trace); -#endif -#ifdef XFS_DIR2_TRACE - ktrace_free(ip->i_dir_trace); -#endif - if (ip->i_itemp) { - /* - * Only if we are shutting down the fs will we see an - * inode still in the AIL. If it is there, we should remove - * it to prevent a use-after-free from occurring. - */ - xfs_log_item_t *lip = &ip->i_itemp->ili_item; - struct xfs_ail *ailp = lip->li_ailp; - - ASSERT(((lip->li_flags & XFS_LI_IN_AIL) == 0) || - XFS_FORCED_SHUTDOWN(ip->i_mount)); - if (lip->li_flags & XFS_LI_IN_AIL) { - spin_lock(&ailp->xa_lock); - if (lip->li_flags & XFS_LI_IN_AIL) - xfs_trans_ail_delete(ailp, lip); - else - spin_unlock(&ailp->xa_lock); - } - xfs_inode_item_destroy(ip); - ip->i_itemp = NULL; - } - /* asserts to verify all state is correct here */ - ASSERT(atomic_read(&ip->i_iocount) == 0); - ASSERT(atomic_read(&ip->i_pincount) == 0); - ASSERT(!spin_is_locked(&ip->i_flags_lock)); - ASSERT(completion_done(&ip->i_flush)); - kmem_zone_free(xfs_inode_zone, ip); + xfs_inode_free(ip); } /* diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h index 1804f866a71..65f24a3cc99 100644 --- a/fs/xfs/xfs_inode.h +++ b/fs/xfs/xfs_inode.h @@ -309,23 +309,6 @@ static inline struct inode *VFS_I(struct xfs_inode *ip) return &ip->i_vnode; } -/* - * Get rid of a partially initialized inode. - * - * We have to go through destroy_inode to make sure allocations - * from init_inode_always like the security data are undone. - * - * We mark the inode bad so that it takes the short cut in - * the reclaim path instead of going through the flush path - * which doesn't make sense for an inode that has never seen the - * light of day. - */ -static inline void xfs_destroy_inode(struct xfs_inode *ip) -{ - make_bad_inode(VFS_I(ip)); - return destroy_inode(VFS_I(ip)); -} - /* * i_flags helper functions */ -- cgit v1.2.3 From 2020002a878403a6858868d85a43623f74859dba Mon Sep 17 00:00:00 2001 From: Stoyan Gaydarov Date: Thu, 6 Aug 2009 15:07:28 -0700 Subject: drivers/w1/masters/omap_hdq.c: fix missing mutex unlock This was found using a semantic patch, more info can be found at: http://www.emn.fr/x-info/coccinelle/ Signed-off-by: Stoyan Gaydarov Acked-by: Evgeniy Polyakov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/w1/masters/omap_hdq.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/w1/masters/omap_hdq.c b/drivers/w1/masters/omap_hdq.c index a7e3b706b9d..0d92969404c 100644 --- a/drivers/w1/masters/omap_hdq.c +++ b/drivers/w1/masters/omap_hdq.c @@ -687,6 +687,7 @@ static int omap_hdq_remove(struct platform_device *pdev) if (hdq_data->hdq_usecount) { dev_dbg(&pdev->dev, "removed when use count is not zero\n"); + mutex_unlock(&hdq_data->hdq_mutex); return -EBUSY; } -- cgit v1.2.3 From 69dd647f969c28d18de77e2153f30d05a1874571 Mon Sep 17 00:00:00 2001 From: Xiao Guangrong Date: Thu, 6 Aug 2009 15:07:29 -0700 Subject: generic-ipi: fix hotplug_cfd() Use CONFIG_HOTPLUG_CPU, not CONFIG_CPU_HOTPLUG When hot-unpluging a cpu, it will leak memory allocated at cpu hotplug, but only if CPUMASK_OFFSTACK=y, which is default to n. The bug was introduced by 8969a5ede0f9e17da4b943712429aef2c9bcd82b ("generic-ipi: remove kmalloc()"). Signed-off-by: Xiao Guangrong Cc: Ingo Molnar Cc: Jens Axboe Cc: Nick Piggin Cc: Peter Zijlstra Cc: Rusty Russell Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/smp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/smp.c b/kernel/smp.c index ad63d850120..94188b8ecc3 100644 --- a/kernel/smp.c +++ b/kernel/smp.c @@ -57,7 +57,7 @@ hotplug_cfd(struct notifier_block *nfb, unsigned long action, void *hcpu) return NOTIFY_BAD; break; -#ifdef CONFIG_CPU_HOTPLUG +#ifdef CONFIG_HOTPLUG_CPU case CPU_UP_CANCELED: case CPU_UP_CANCELED_FROZEN: -- cgit v1.2.3 From 93274e4d4e9416ad1fa47e2f26011e2c483fe5fe Mon Sep 17 00:00:00 2001 From: Stefani Seibold Date: Thu, 6 Aug 2009 15:07:30 -0700 Subject: fbcon: fix rotate upside down crash Fix the rotate_ud() function not to crash in case of a font which has not a width of multiple by 8: The inner loop of the font pixel copy should not access a bit outside the font memory area. Subtract the shift offset from the font width will prevent this. Signed-off-by: Stefani Seibold Cc: Krzysztof Helt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/console/fbcon_rotate.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/video/console/fbcon_rotate.h b/drivers/video/console/fbcon_rotate.h index 75be5ce53dc..e233444cda6 100644 --- a/drivers/video/console/fbcon_rotate.h +++ b/drivers/video/console/fbcon_rotate.h @@ -45,7 +45,7 @@ static inline void rotate_ud(const char *in, char *out, u32 width, u32 height) width = (width + 7) & ~7; for (i = 0; i < height; i++) { - for (j = 0; j < width; j++) { + for (j = 0; j < width - shift; j++) { if (pattern_test_bit(j, i, width, in)) pattern_set_bit(width - (1 + j + shift), height - (1 + i), -- cgit v1.2.3 From 4bfc44958e499af9a73f62201543b3a1f617cfeb Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Thu, 6 Aug 2009 15:07:33 -0700 Subject: mm: make set_mempolicy(MPOL_INTERLEAV) N_HIGH_MEMORY aware At first, init_task's mems_allowed is initialized as this. init_task->mems_allowed == node_state[N_POSSIBLE] And cpuset's top_cpuset mask is initialized as this top_cpuset->mems_allowed = node_state[N_HIGH_MEMORY] Before 2.6.29: policy's mems_allowed is initialized as this. 1. update tasks->mems_allowed by its cpuset->mems_allowed. 2. policy->mems_allowed = nodes_and(tasks->mems_allowed, user's mask) Updating task's mems_allowed in reference to top_cpuset's one. cpuset's mems_allowed is aware of N_HIGH_MEMORY, always. In 2.6.30: After commit 58568d2a8215cb6f55caf2332017d7bdff954e1c ("cpuset,mm: update tasks' mems_allowed in time"), policy's mems_allowed is initialized as this. 1. policy->mems_allowd = nodes_and(task->mems_allowed, user's mask) Here, if task is in top_cpuset, task->mems_allowed is not updated from init's one. Assume user excutes command as #numactrl --interleave=all ,.... policy->mems_allowd = nodes_and(N_POSSIBLE, ALL_SET_MASK) Then, policy's mems_allowd can includes a possible node, which has no pgdat. MPOL's INTERLEAVE just scans nodemask of task->mems_allowd and access this directly. NODE_DATA(nid)->zonelist even if NODE_DATA(nid)==NULL Then, what's we need is making policy->mems_allowed be aware of N_HIGH_MEMORY. This patch does that. But to do so, extra nodemask will be on statck. Because I know cpumask has a new interface of CPUMASK_ALLOC(), I added it to node. This patch stands on old behavior. But I feel this fix itself is just a Band-Aid. But to do fundametal fix, we have to take care of memory hotplug and it takes time. (task->mems_allowd should be N_HIGH_MEMORY, I think.) mpol_set_nodemask() should be aware of N_HIGH_MEMORY and policy's nodemask should be includes only online nodes. In old behavior, this is guaranteed by frequent reference to cpuset's code. Now, most of them are removed and mempolicy has to check it by itself. To do check, a few nodemask_t will be used for calculating nodemask. But, size of nodemask_t can be big and it's not good to allocate them on stack. Now, cpumask_t has CPUMASK_ALLOC/FREE an easy code for get scratch area. NODEMASK_ALLOC/FREE shoudl be there. [akpm@linux-foundation.org: cleanups & tweaks] Tested-by: KOSAKI Motohiro Signed-off-by: KAMEZAWA Hiroyuki Cc: Miao Xie Cc: Ingo Molnar Cc: Peter Zijlstra Cc: Christoph Lameter Cc: Paul Menage Cc: Nick Piggin Cc: Yasunori Goto Cc: Pekka Enberg Cc: David Rientjes Cc: Lee Schermerhorn Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/nodemask.h | 28 ++++++++++++++++ mm/mempolicy.c | 84 +++++++++++++++++++++++++++++++++--------------- 2 files changed, 86 insertions(+), 26 deletions(-) diff --git a/include/linux/nodemask.h b/include/linux/nodemask.h index 829b94b156f..b359c4a9ec9 100644 --- a/include/linux/nodemask.h +++ b/include/linux/nodemask.h @@ -82,6 +82,12 @@ * to generate slightly worse code. So use a simple one-line #define * for node_isset(), instead of wrapping an inline inside a macro, the * way we do the other calls. + * + * NODEMASK_SCRATCH + * When doing above logical AND, OR, XOR, Remap operations the callers tend to + * need temporary nodemask_t's on the stack. But if NODES_SHIFT is large, + * nodemask_t's consume too much stack space. NODEMASK_SCRATCH is a helper + * for such situations. See below and CPUMASK_ALLOC also. */ #include @@ -473,4 +479,26 @@ static inline int num_node_state(enum node_states state) #define for_each_node(node) for_each_node_state(node, N_POSSIBLE) #define for_each_online_node(node) for_each_node_state(node, N_ONLINE) +/* + * For nodemask scrach area.(See CPUMASK_ALLOC() in cpumask.h) + */ + +#if NODES_SHIFT > 8 /* nodemask_t > 64 bytes */ +#define NODEMASK_ALLOC(x, m) struct x *m = kmalloc(sizeof(*m), GFP_KERNEL) +#define NODEMASK_FREE(m) kfree(m) +#else +#define NODEMASK_ALLOC(x, m) struct x _m, *m = &_m +#define NODEMASK_FREE(m) +#endif + +/* A example struture for using NODEMASK_ALLOC, used in mempolicy. */ +struct nodemask_scratch { + nodemask_t mask1; + nodemask_t mask2; +}; + +#define NODEMASK_SCRATCH(x) NODEMASK_ALLOC(nodemask_scratch, x) +#define NODEMASK_SCRATCH_FREE(x) NODEMASK_FREE(x) + + #endif /* __LINUX_NODEMASK_H */ diff --git a/mm/mempolicy.c b/mm/mempolicy.c index e08e2c4da63..7dd9d9f8069 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -191,25 +191,27 @@ static int mpol_new_bind(struct mempolicy *pol, const nodemask_t *nodes) * Must be called holding task's alloc_lock to protect task's mems_allowed * and mempolicy. May also be called holding the mmap_semaphore for write. */ -static int mpol_set_nodemask(struct mempolicy *pol, const nodemask_t *nodes) +static int mpol_set_nodemask(struct mempolicy *pol, + const nodemask_t *nodes, struct nodemask_scratch *nsc) { - nodemask_t cpuset_context_nmask; int ret; /* if mode is MPOL_DEFAULT, pol is NULL. This is right. */ if (pol == NULL) return 0; + /* Check N_HIGH_MEMORY */ + nodes_and(nsc->mask1, + cpuset_current_mems_allowed, node_states[N_HIGH_MEMORY]); VM_BUG_ON(!nodes); if (pol->mode == MPOL_PREFERRED && nodes_empty(*nodes)) nodes = NULL; /* explicit local allocation */ else { if (pol->flags & MPOL_F_RELATIVE_NODES) - mpol_relative_nodemask(&cpuset_context_nmask, nodes, - &cpuset_current_mems_allowed); + mpol_relative_nodemask(&nsc->mask2, nodes,&nsc->mask1); else - nodes_and(cpuset_context_nmask, *nodes, - cpuset_current_mems_allowed); + nodes_and(nsc->mask2, *nodes, nsc->mask1); + if (mpol_store_user_nodemask(pol)) pol->w.user_nodemask = *nodes; else @@ -217,8 +219,10 @@ static int mpol_set_nodemask(struct mempolicy *pol, const nodemask_t *nodes) cpuset_current_mems_allowed; } - ret = mpol_ops[pol->mode].create(pol, - nodes ? &cpuset_context_nmask : NULL); + if (nodes) + ret = mpol_ops[pol->mode].create(pol, &nsc->mask2); + else + ret = mpol_ops[pol->mode].create(pol, NULL); return ret; } @@ -620,12 +624,17 @@ static long do_set_mempolicy(unsigned short mode, unsigned short flags, { struct mempolicy *new, *old; struct mm_struct *mm = current->mm; + NODEMASK_SCRATCH(scratch); int ret; - new = mpol_new(mode, flags, nodes); - if (IS_ERR(new)) - return PTR_ERR(new); + if (!scratch) + return -ENOMEM; + new = mpol_new(mode, flags, nodes); + if (IS_ERR(new)) { + ret = PTR_ERR(new); + goto out; + } /* * prevent changing our mempolicy while show_numa_maps() * is using it. @@ -635,13 +644,13 @@ static long do_set_mempolicy(unsigned short mode, unsigned short flags, if (mm) down_write(&mm->mmap_sem); task_lock(current); - ret = mpol_set_nodemask(new, nodes); + ret = mpol_set_nodemask(new, nodes, scratch); if (ret) { task_unlock(current); if (mm) up_write(&mm->mmap_sem); mpol_put(new); - return ret; + goto out; } old = current->mempolicy; current->mempolicy = new; @@ -654,7 +663,10 @@ static long do_set_mempolicy(unsigned short mode, unsigned short flags, up_write(&mm->mmap_sem); mpol_put(old); - return 0; + ret = 0; +out: + NODEMASK_SCRATCH_FREE(scratch); + return ret; } /* @@ -1014,12 +1026,20 @@ static long do_mbind(unsigned long start, unsigned long len, if (err) return err; } - down_write(&mm->mmap_sem); - task_lock(current); - err = mpol_set_nodemask(new, nmask); - task_unlock(current); + { + NODEMASK_SCRATCH(scratch); + if (scratch) { + down_write(&mm->mmap_sem); + task_lock(current); + err = mpol_set_nodemask(new, nmask, scratch); + task_unlock(current); + if (err) + up_write(&mm->mmap_sem); + } else + err = -ENOMEM; + NODEMASK_SCRATCH_FREE(scratch); + } if (err) { - up_write(&mm->mmap_sem); mpol_put(new); return err; } @@ -1891,6 +1911,7 @@ restart: * Install non-NULL @mpol in inode's shared policy rb-tree. * On entry, the current task has a reference on a non-NULL @mpol. * This must be released on exit. + * This is called at get_inode() calls and we can use GFP_KERNEL. */ void mpol_shared_policy_init(struct shared_policy *sp, struct mempolicy *mpol) { @@ -1902,19 +1923,24 @@ void mpol_shared_policy_init(struct shared_policy *sp, struct mempolicy *mpol) if (mpol) { struct vm_area_struct pvma; struct mempolicy *new; + NODEMASK_SCRATCH(scratch); + if (!scratch) + return; /* contextualize the tmpfs mount point mempolicy */ new = mpol_new(mpol->mode, mpol->flags, &mpol->w.user_nodemask); if (IS_ERR(new)) { mpol_put(mpol); /* drop our ref on sb mpol */ + NODEMASK_SCRATCH_FREE(scratch); return; /* no valid nodemask intersection */ } task_lock(current); - ret = mpol_set_nodemask(new, &mpol->w.user_nodemask); + ret = mpol_set_nodemask(new, &mpol->w.user_nodemask, scratch); task_unlock(current); mpol_put(mpol); /* drop our ref on sb mpol */ if (ret) { + NODEMASK_SCRATCH_FREE(scratch); mpol_put(new); return; } @@ -1924,6 +1950,7 @@ void mpol_shared_policy_init(struct shared_policy *sp, struct mempolicy *mpol) pvma.vm_end = TASK_SIZE; /* policy covers entire file */ mpol_set_shared_policy(sp, &pvma, new); /* adds ref */ mpol_put(new); /* drop initial ref */ + NODEMASK_SCRATCH_FREE(scratch); } } @@ -2140,13 +2167,18 @@ int mpol_parse_str(char *str, struct mempolicy **mpol, int no_context) err = 1; else { int ret; - - task_lock(current); - ret = mpol_set_nodemask(new, &nodes); - task_unlock(current); - if (ret) + NODEMASK_SCRATCH(scratch); + if (scratch) { + task_lock(current); + ret = mpol_set_nodemask(new, &nodes, scratch); + task_unlock(current); + } else + ret = -ENOMEM; + NODEMASK_SCRATCH_FREE(scratch); + if (ret) { err = 1; - else if (no_context) { + mpol_put(new); + } else if (no_context) { /* save for contextualization */ new->w.user_nodemask = nodes; } -- cgit v1.2.3 From 521594442cc62d1c2af8436a05ab5918b7730b19 Mon Sep 17 00:00:00 2001 From: Florian Tobias Schandinat Date: Thu, 6 Aug 2009 15:07:34 -0700 Subject: viafb: fix rmmod bug This fixes a bug caused by changing pointers (viafb_mode, viafb_mode1) assigned by module_param. It reduces driver complexity by not needlessly changing these vars as they are only read once and removing now superfluous code. On unpatched kernels loading viafb with viafb_mode or viafb_mode1 option used and afterwards unloading it results in: kernel BUG at mm/slub.c:2926! invalid opcode: 0000 [#1] PREEMPT last sysfs file: /sys/devices/virtual/block/loop0/removable Modules linked in: snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm rtl8187 snd_timer eeprom_93cx6 mmc_block snd soundcore via_sdmmc fb snd_page_alloc i2c_algo_bit i2c_viapro ehci_hcd uhci_hcd cfbcopyarea mmc_core cfbimgblt cfbfillrect video output [last unloaded: viafb] Pid: 3355, comm: rmmod Not tainted (2.6.31-rc1 #0) EIP: 0060:[] EFLAGS: 00010246 CPU: 0 EIP is at kfree+0x80/0xda EAX: c17c2da0 EBX: dc7edbdc ECX: 0000010f EDX: 00000000 ESI: c102c700 EDI: dc7ed8fa EBP: d703ff2c ESP: d703ff20 DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 Process rmmod (pid: 3355, ti=d703e000 task=db1412c0 task.ti=d703e000) Stack: dc7edbdc 00000014 00000016 d703ff40 c102c700 dc7f45d4 dc7f45d4 00000880 d703ff4c c103e571 00000000 d703ffac c103e751 66616976 da140062 db89ba80 00000328 d702edf8 db89ba80 d703ff9c c105d0f0 00000200 da14f898 00000014 Call Trace: [] ? destroy_params+0x1e/0x2b [] ? free_module+0xa2/0xd7 [] ? sys_delete_module+0x1ab/0x1da [] ? do_munmap+0x20a/0x225 [] ? sysenter_do_call+0x12/0x26 Code: 10 76 7a 8d 87 00 00 00 40 c1 e8 0c c1 e0 05 03 05 1c 87 41 c1 66 83 38 00 79 03 8b 40 0c 8b 10 84 d2 78 12 66 f7 c2 00 c0 75 04 <0f> 0b eb fe e8 6f 5a fe ff eb 47 8b 55 04 8b 58 0c 9c 5e fa 3b EIP: [] kfree+0x80/0xda SS:ESP 0068:d703ff20 This is caused by the current code changing the pointers assigned by module_param. During unload it tries to free the memory the pointers point at which is now part of an internal structure. The patch simply avoids changing the pointers. This is okay as they are read only once during the initialization process. Signed-off-by: Florian Tobias Schandinat Cc: Scott Fang Cc: Joseph Chan Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/via/hw.c | 4 +- drivers/video/via/lcd.c | 15 ++----- drivers/video/via/viafbdev.c | 101 ++++++++++++++++++++----------------------- drivers/video/via/viafbdev.h | 3 +- 4 files changed, 53 insertions(+), 70 deletions(-) diff --git a/drivers/video/via/hw.c b/drivers/video/via/hw.c index fcd53ceb88f..c8960003f47 100644 --- a/drivers/video/via/hw.c +++ b/drivers/video/via/hw.c @@ -2407,14 +2407,14 @@ int viafb_setmode(int vmode_index, int hor_res, int ver_res, int video_bpp, viafb_dvi_set_mode(viafb_get_mode_index (viaparinfo->tmds_setting_info->h_active, viaparinfo->tmds_setting_info-> - v_active, 1), + v_active), video_bpp1, viaparinfo-> tmds_setting_info->iga_path); } else { viafb_dvi_set_mode(viafb_get_mode_index (viaparinfo->tmds_setting_info->h_active, viaparinfo-> - tmds_setting_info->v_active, 0), + tmds_setting_info->v_active), video_bpp, viaparinfo-> tmds_setting_info->iga_path); } diff --git a/drivers/video/via/lcd.c b/drivers/video/via/lcd.c index 6c7290a6a44..78c6b338794 100644 --- a/drivers/video/via/lcd.c +++ b/drivers/video/via/lcd.c @@ -580,10 +580,7 @@ static void load_lcd_k400_patch_tbl(int set_hres, int set_vres, int reg_num = 0; struct io_reg *lcd_patch_reg = NULL; - if (viaparinfo->lvds_setting_info->iga_path == IGA2) - vmode_index = viafb_get_mode_index(set_hres, set_vres, 1); - else - vmode_index = viafb_get_mode_index(set_hres, set_vres, 0); + vmode_index = viafb_get_mode_index(set_hres, set_vres); switch (panel_id) { /* LCD 800x600 */ case LCD_PANEL_ID1_800X600: @@ -761,10 +758,7 @@ static void load_lcd_p880_patch_tbl(int set_hres, int set_vres, int reg_num = 0; struct io_reg *lcd_patch_reg = NULL; - if (viaparinfo->lvds_setting_info->iga_path == IGA2) - vmode_index = viafb_get_mode_index(set_hres, set_vres, 1); - else - vmode_index = viafb_get_mode_index(set_hres, set_vres, 0); + vmode_index = viafb_get_mode_index(set_hres, set_vres); switch (panel_id) { case LCD_PANEL_ID5_1400X1050: @@ -832,10 +826,7 @@ static void load_lcd_patch_regs(int set_hres, int set_vres, { int vmode_index; - if (viaparinfo->lvds_setting_info->iga_path == IGA2) - vmode_index = viafb_get_mode_index(set_hres, set_vres, 1); - else - vmode_index = viafb_get_mode_index(set_hres, set_vres, 0); + vmode_index = viafb_get_mode_index(set_hres, set_vres); viafb_unlock_crt(); diff --git a/drivers/video/via/viafbdev.c b/drivers/video/via/viafbdev.c index a0fec298216..72833f3334b 100644 --- a/drivers/video/via/viafbdev.c +++ b/drivers/video/via/viafbdev.c @@ -32,7 +32,6 @@ static u32 pseudo_pal[17]; /* video mode */ static char *viafb_mode = "640x480"; static char *viafb_mode1 = "640x480"; -static int viafb_resMode = VIA_RES_640X480; /* Added for specifying active devices.*/ char *viafb_active_dev = ""; @@ -56,47 +55,47 @@ static void viafb_get_video_device(u32 *video_dev_info); /* Mode information */ static const struct viafb_modeinfo viafb_modentry[] = { - {480, 640, VIA_RES_480X640, "480x640"}, - {640, 480, VIA_RES_640X480, "640x480"}, - {800, 480, VIA_RES_800X480, "800x480"}, - {800, 600, VIA_RES_800X600, "800x600"}, - {1024, 768, VIA_RES_1024X768, "1024x768"}, - {1152, 864, VIA_RES_1152X864, "1152x864"}, - {1280, 1024, VIA_RES_1280X1024, "1280x1024"}, - {1600, 1200, VIA_RES_1600X1200, "1600x1200"}, - {1440, 1050, VIA_RES_1440X1050, "1440x1050"}, - {1280, 768, VIA_RES_1280X768, "1280x768"}, - {1280, 800, VIA_RES_1280X800, "1280x800"}, - {1280, 960, VIA_RES_1280X960, "1280x960"}, - {1920, 1440, VIA_RES_1920X1440, "1920x1440"}, - {848, 480, VIA_RES_848X480, "848x480"}, - {1400, 1050, VIA_RES_1400X1050, "1400x1050"}, - {720, 480, VIA_RES_720X480, "720x480"}, - {720, 576, VIA_RES_720X576, "720x576"}, - {1024, 512, VIA_RES_1024X512, "1024x512"}, - {1024, 576, VIA_RES_1024X576, "1024x576"}, - {1024, 600, VIA_RES_1024X600, "1024x600"}, - {1280, 720, VIA_RES_1280X720, "1280x720"}, - {1920, 1080, VIA_RES_1920X1080, "1920x1080"}, - {1366, 768, VIA_RES_1368X768, "1368x768"}, - {1680, 1050, VIA_RES_1680X1050, "1680x1050"}, - {960, 600, VIA_RES_960X600, "960x600"}, - {1000, 600, VIA_RES_1000X600, "1000x600"}, - {1024, 576, VIA_RES_1024X576, "1024x576"}, - {1024, 600, VIA_RES_1024X600, "1024x600"}, - {1088, 612, VIA_RES_1088X612, "1088x612"}, - {1152, 720, VIA_RES_1152X720, "1152x720"}, - {1200, 720, VIA_RES_1200X720, "1200x720"}, - {1280, 600, VIA_RES_1280X600, "1280x600"}, - {1360, 768, VIA_RES_1360X768, "1360x768"}, - {1440, 900, VIA_RES_1440X900, "1440x900"}, - {1600, 900, VIA_RES_1600X900, "1600x900"}, - {1600, 1024, VIA_RES_1600X1024, "1600x1024"}, - {1792, 1344, VIA_RES_1792X1344, "1792x1344"}, - {1856, 1392, VIA_RES_1856X1392, "1856x1392"}, - {1920, 1200, VIA_RES_1920X1200, "1920x1200"}, - {2048, 1536, VIA_RES_2048X1536, "2048x1536"}, - {0, 0, VIA_RES_INVALID, "640x480"} + {480, 640, VIA_RES_480X640}, + {640, 480, VIA_RES_640X480}, + {800, 480, VIA_RES_800X480}, + {800, 600, VIA_RES_800X600}, + {1024, 768, VIA_RES_1024X768}, + {1152, 864, VIA_RES_1152X864}, + {1280, 1024, VIA_RES_1280X1024}, + {1600, 1200, VIA_RES_1600X1200}, + {1440, 1050, VIA_RES_1440X1050}, + {1280, 768, VIA_RES_1280X768,}, + {1280, 800, VIA_RES_1280X800}, + {1280, 960, VIA_RES_1280X960}, + {1920, 1440, VIA_RES_1920X1440}, + {848, 480, VIA_RES_848X480}, + {1400, 1050, VIA_RES_1400X1050}, + {720, 480, VIA_RES_720X480}, + {720, 576, VIA_RES_720X576}, + {1024, 512, VIA_RES_1024X512}, + {1024, 576, VIA_RES_1024X576}, + {1024, 600, VIA_RES_1024X600}, + {1280, 720, VIA_RES_1280X720}, + {1920, 1080, VIA_RES_1920X1080}, + {1366, 768, VIA_RES_1368X768}, + {1680, 1050, VIA_RES_1680X1050}, + {960, 600, VIA_RES_960X600}, + {1000, 600, VIA_RES_1000X600}, + {1024, 576, VIA_RES_1024X576}, + {1024, 600, VIA_RES_1024X600}, + {1088, 612, VIA_RES_1088X612}, + {1152, 720, VIA_RES_1152X720}, + {1200, 720, VIA_RES_1200X720}, + {1280, 600, VIA_RES_1280X600}, + {1360, 768, VIA_RES_1360X768}, + {1440, 900, VIA_RES_1440X900}, + {1600, 900, VIA_RES_1600X900}, + {1600, 1024, VIA_RES_1600X1024}, + {1792, 1344, VIA_RES_1792X1344}, + {1856, 1392, VIA_RES_1856X1392}, + {1920, 1200, VIA_RES_1920X1200}, + {2048, 1536, VIA_RES_2048X1536}, + {0, 0, VIA_RES_INVALID} }; static struct fb_ops viafb_ops; @@ -177,7 +176,7 @@ static int viafb_check_var(struct fb_var_screeninfo *var, if (var->vmode & FB_VMODE_INTERLACED || var->vmode & FB_VMODE_DOUBLE) return -EINVAL; - vmode_index = viafb_get_mode_index(var->xres, var->yres, 0); + vmode_index = viafb_get_mode_index(var->xres, var->yres); if (vmode_index == VIA_RES_INVALID) { DEBUG_MSG(KERN_INFO "viafb: Mode %dx%dx%d not supported!!\n", @@ -233,14 +232,14 @@ static int viafb_set_par(struct fb_info *info) viafb_update_device_setting(info->var.xres, info->var.yres, info->var.bits_per_pixel, viafb_refresh, 0); - vmode_index = viafb_get_mode_index(info->var.xres, info->var.yres, 0); + vmode_index = viafb_get_mode_index(info->var.xres, info->var.yres); if (viafb_SAMM_ON == 1) { DEBUG_MSG(KERN_INFO "viafb_second_xres = %d, viafb_second_yres = %d, bpp = %d\n", viafb_second_xres, viafb_second_yres, viafb_bpp1); vmode_index1 = viafb_get_mode_index(viafb_second_xres, - viafb_second_yres, 1); + viafb_second_yres); DEBUG_MSG(KERN_INFO "->viafb_SAMM_ON: index=%d\n", vmode_index1); @@ -1262,7 +1261,7 @@ static int viafb_sync(struct fb_info *info) return 0; } -int viafb_get_mode_index(int hres, int vres, int flag) +int viafb_get_mode_index(int hres, int vres) { u32 i; DEBUG_MSG(KERN_INFO "viafb_get_mode_index!\n"); @@ -1272,13 +1271,7 @@ int viafb_get_mode_index(int hres, int vres, int flag) viafb_modentry[i].yres == vres) break; - viafb_resMode = viafb_modentry[i].mode_index; - if (flag) - viafb_mode1 = viafb_modentry[i].mode_res; - else - viafb_mode = viafb_modentry[i].mode_res; - - return viafb_resMode; + return viafb_modentry[i].mode_index; } static void check_available_device_to_enable(int device_id) @@ -2199,7 +2192,7 @@ static int __devinit via_pci_probe(void) strict_strtoul(tmpc, 0, &default_xres); strict_strtoul(tmpm, 0, &default_yres); - vmode_index = viafb_get_mode_index(default_xres, default_yres, 0); + vmode_index = viafb_get_mode_index(default_xres, default_yres); DEBUG_MSG(KERN_INFO "0->index=%d\n", vmode_index); if (viafb_SAMM_ON == 1) { diff --git a/drivers/video/via/viafbdev.h b/drivers/video/via/viafbdev.h index a4158e87287..227b000feb3 100644 --- a/drivers/video/via/viafbdev.h +++ b/drivers/video/via/viafbdev.h @@ -81,7 +81,6 @@ struct viafb_modeinfo { u32 xres; u32 yres; int mode_index; - char *mode_res; }; extern unsigned int viafb_second_virtual_yres; extern unsigned int viafb_second_virtual_xres; @@ -102,7 +101,7 @@ extern int strict_strtoul(const char *cp, unsigned int base, void viafb_memory_pitch_patch(struct fb_info *info); void viafb_fill_var_timing_info(struct fb_var_screeninfo *var, int refresh, int mode_index); -int viafb_get_mode_index(int hres, int vres, int flag); +int viafb_get_mode_index(int hres, int vres); u8 viafb_gpio_i2c_read_lvds(struct lvds_setting_information *plvds_setting_info, struct lvds_chip_information *plvds_chip_info, u8 index); -- cgit v1.2.3 From 0035fe00f77d2b0a1a2d001f7442136d1ec5aefa Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Thu, 6 Aug 2009 15:07:36 -0700 Subject: fbcon: don't use vc_resize() on initialization Catalin and kmemleak spotted a leak of a VC screen buffer in vc_allocate() due to the following chain of events: vc_allocate() visual_init(init=1) vc->vc_sw->con_init(init=1) fbcon_init() vc_resize() vc->screen_buf = kmalloc() vc->screen_buf = kmalloc() The common way for the VC drivers is to set the screen dimension parameters manually in the init case and only call vc_resize() for !init - which allocates a screen buffer according to the new dimensions. fbcon instead would do vc_resize() unconditionally and afterwards set the dimensions manually (again) for !init - i.e. completely upside down. The vc_resize() allocated buffer would then get lost by vc_allocate() allocating a fresh one. Use vc_resize() only for actual resizing to close the leak. Set the dimensions manually only in initialization mode to remove the redundant setting in resize mode. The kmemleak trace from Catalin: unreferenced object 0xde158000 (size 12288): comm "Xorg", pid 1439, jiffies 4294961016 hex dump (first 32 bytes): 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 . . . . . . . . 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 . . . . . . . . backtrace: [] __save_stack_trace+0x17/0x1c [] create_object+0xcd/0x188 [] kmemleak_alloc+0x1b/0x3c [] __kmalloc+0xdb/0xe8 [] vc_do_resize+0x73/0x1e0 [] vc_resize+0x15/0x18 [] fbcon_init+0x1f9/0x2b8 [] visual_init+0x9f/0xdc [] vc_allocate+0x7f/0xfc [] con_open+0x17/0x80 [] tty_open+0x1f7/0x2e4 [] chrdev_open+0x101/0x118 [] __dentry_open+0x105/0x1cc [] nameidata_to_filp+0x2d/0x38 [] do_filp_open+0x2c1/0x54c [] do_sys_open+0x3b/0xb4 Reported-by: Catalin Marinas Signed-off-by: Johannes Weiner Tested-by: Catalin Marinas Cc: Pekka Enberg Cc: Krzysztof Helt Tested-by: Dave Young Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/console/fbcon.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c index 471a9a60376..3a44695b9c0 100644 --- a/drivers/video/console/fbcon.c +++ b/drivers/video/console/fbcon.c @@ -1082,7 +1082,6 @@ static void fbcon_init(struct vc_data *vc, int init) new_rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); new_cols /= vc->vc_font.width; new_rows /= vc->vc_font.height; - vc_resize(vc, new_cols, new_rows); /* * We must always set the mode. The mode of the previous console @@ -1111,10 +1110,11 @@ static void fbcon_init(struct vc_data *vc, int init) * vc_{cols,rows}, but we must not set those if we are only * resizing the console. */ - if (!init) { + if (init) { vc->vc_cols = new_cols; vc->vc_rows = new_rows; - } + } else + vc_resize(vc, new_cols, new_rows); if (logo) fbcon_prepare_logo(vc, info, cols, rows, new_cols, new_rows); -- cgit v1.2.3 From 69130c7cf96ea853dc5be599dd6a4b98907d39cc Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Thu, 6 Aug 2009 15:07:37 -0700 Subject: compat_ioctl: hook up compat handler for FIEMAP ioctl The FIEMAP_IOC_FIEMAP mapping ioctl was missing a 32-bit compat handler, which means that 32-bit suerspace on 64-bit kernels cannot use this ioctl command. The structure is nicely aligned, padded, and sized, so it is just this simple. Tested w/ 32-bit ioctl tester (from Josef) on a 64-bit kernel on ext4. Signed-off-by: Eric Sandeen Cc: Cc: Mark Lord Cc: Arnd Bergmann Cc: Josef Bacik Cc: Jan Kara Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/compat_ioctl.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c index f28f070a60f..f91fd51b32e 100644 --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -1905,6 +1905,7 @@ COMPATIBLE_IOCTL(FIONCLEX) COMPATIBLE_IOCTL(FIOASYNC) COMPATIBLE_IOCTL(FIONBIO) COMPATIBLE_IOCTL(FIONREAD) /* This is also TIOCINQ */ +COMPATIBLE_IOCTL(FS_IOC_FIEMAP) /* 0x00 */ COMPATIBLE_IOCTL(FIBMAP) COMPATIBLE_IOCTL(FIGETBSZ) -- cgit v1.2.3 From 2d8dd38a5aa0cc2490bbad9b75e77fa154e1d145 Mon Sep 17 00:00:00 2001 From: OGAWA Hirofumi Date: Thu, 6 Aug 2009 15:07:39 -0700 Subject: vfs: mnt_want_write_file(): fix special file handling I suspect that mnt_want_write_file() may have wrong assumption. I think mnt_want_write_file() is assuming it increments ->mnt_writers if (file->f_mode & FMODE_WRITE). But, if it's special_file(), it is false? Signed-off-by: OGAWA Hirofumi Acked-by: Dave Hansen Cc: Al Viro Cc: Nick Piggin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/namespace.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/namespace.c b/fs/namespace.c index 277c28a63ea..7230787d18b 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -316,7 +316,8 @@ EXPORT_SYMBOL_GPL(mnt_clone_write); */ int mnt_want_write_file(struct file *file) { - if (!(file->f_mode & FMODE_WRITE)) + struct inode *inode = file->f_dentry->d_inode; + if (!(file->f_mode & FMODE_WRITE) || special_file(inode->i_mode)) return mnt_want_write(file->f_path.mnt); else return mnt_clone_write(file->f_path.mnt); -- cgit v1.2.3 From 20de03dae54e10271ffd308654dfb4a117f4789d Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Thu, 6 Aug 2009 15:07:40 -0700 Subject: i.MX31: fix framebuffer locking regressions Recent framebuffer locking patches first made affected systems unbootable, then the dead-lock has been fixed but as of 2.6.31-rc4 the framebuffer on mx3 machines doesn't work. Fix this. Signed-off-by: Guennadi Liakhovetski Cc: Sascha Hauer Cc: Krzysztof Helt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/mx3fb.c | 86 +++++++++++++++++++++++++++++++++------------------ 1 file changed, 56 insertions(+), 30 deletions(-) diff --git a/drivers/video/mx3fb.c b/drivers/video/mx3fb.c index f8778cde218..054ef29be47 100644 --- a/drivers/video/mx3fb.c +++ b/drivers/video/mx3fb.c @@ -669,7 +669,8 @@ static uint32_t bpp_to_pixfmt(int bpp) } static int mx3fb_blank(int blank, struct fb_info *fbi); -static int mx3fb_map_video_memory(struct fb_info *fbi, unsigned int mem_len); +static int mx3fb_map_video_memory(struct fb_info *fbi, unsigned int mem_len, + bool lock); static int mx3fb_unmap_video_memory(struct fb_info *fbi); /** @@ -711,12 +712,7 @@ static void mx3fb_dma_done(void *arg) complete(&mx3_fbi->flip_cmpl); } -/** - * mx3fb_set_par() - set framebuffer parameters and change the operating mode. - * @fbi: framebuffer information pointer. - * @return: 0 on success or negative error code on failure. - */ -static int mx3fb_set_par(struct fb_info *fbi) +static int __set_par(struct fb_info *fbi, bool lock) { u32 mem_len; struct ipu_di_signal_cfg sig_cfg; @@ -727,10 +723,6 @@ static int mx3fb_set_par(struct fb_info *fbi) struct idmac_video_param *video = &ichan->params.video; struct scatterlist *sg = mx3_fbi->sg; - dev_dbg(mx3fb->dev, "%s [%c]\n", __func__, list_empty(&ichan->queue) ? '-' : '+'); - - mutex_lock(&mx3_fbi->mutex); - /* Total cleanup */ if (mx3_fbi->txd) sdc_disable_channel(mx3_fbi); @@ -742,10 +734,8 @@ static int mx3fb_set_par(struct fb_info *fbi) if (fbi->fix.smem_start) mx3fb_unmap_video_memory(fbi); - if (mx3fb_map_video_memory(fbi, mem_len) < 0) { - mutex_unlock(&mx3_fbi->mutex); + if (mx3fb_map_video_memory(fbi, mem_len, lock) < 0) return -ENOMEM; - } } sg_init_table(&sg[0], 1); @@ -791,7 +781,6 @@ static int mx3fb_set_par(struct fb_info *fbi) fbi->var.vsync_len, fbi->var.lower_margin + fbi->var.vsync_len, sig_cfg) != 0) { - mutex_unlock(&mx3_fbi->mutex); dev_err(fbi->device, "mx3fb: Error initializing panel.\n"); return -EINVAL; @@ -810,9 +799,30 @@ static int mx3fb_set_par(struct fb_info *fbi) if (mx3_fbi->blank == FB_BLANK_UNBLANK) sdc_enable_channel(mx3_fbi); + return 0; +} + +/** + * mx3fb_set_par() - set framebuffer parameters and change the operating mode. + * @fbi: framebuffer information pointer. + * @return: 0 on success or negative error code on failure. + */ +static int mx3fb_set_par(struct fb_info *fbi) +{ + struct mx3fb_info *mx3_fbi = fbi->par; + struct mx3fb_data *mx3fb = mx3_fbi->mx3fb; + struct idmac_channel *ichan = mx3_fbi->idmac_channel; + int ret; + + dev_dbg(mx3fb->dev, "%s [%c]\n", __func__, list_empty(&ichan->queue) ? '-' : '+'); + + mutex_lock(&mx3_fbi->mutex); + + ret = __set_par(fbi, true); + mutex_unlock(&mx3_fbi->mutex); - return 0; + return ret; } /** @@ -966,21 +976,11 @@ static int mx3fb_setcolreg(unsigned int regno, unsigned int red, return ret; } -/** - * mx3fb_blank() - blank the display. - */ -static int mx3fb_blank(int blank, struct fb_info *fbi) +static void __blank(int blank, struct fb_info *fbi) { struct mx3fb_info *mx3_fbi = fbi->par; struct mx3fb_data *mx3fb = mx3_fbi->mx3fb; - dev_dbg(fbi->device, "%s, blank = %d, base %p, len %u\n", __func__, - blank, fbi->screen_base, fbi->fix.smem_len); - - if (mx3_fbi->blank == blank) - return 0; - - mutex_lock(&mx3_fbi->mutex); mx3_fbi->blank = blank; switch (blank) { @@ -999,6 +999,23 @@ static int mx3fb_blank(int blank, struct fb_info *fbi) sdc_set_brightness(mx3fb, mx3fb->backlight_level); break; } +} + +/** + * mx3fb_blank() - blank the display. + */ +static int mx3fb_blank(int blank, struct fb_info *fbi) +{ + struct mx3fb_info *mx3_fbi = fbi->par; + + dev_dbg(fbi->device, "%s, blank = %d, base %p, len %u\n", __func__, + blank, fbi->screen_base, fbi->fix.smem_len); + + if (mx3_fbi->blank == blank) + return 0; + + mutex_lock(&mx3_fbi->mutex); + __blank(blank, fbi); mutex_unlock(&mx3_fbi->mutex); return 0; @@ -1198,6 +1215,7 @@ static int mx3fb_resume(struct platform_device *pdev) * mx3fb_map_video_memory() - allocates the DRAM memory for the frame buffer. * @fbi: framebuffer information pointer * @mem_len: length of mapped memory + * @lock: do not lock during initialisation * @return: Error code indicating success or failure * * This buffer is remapped into a non-cached, non-buffered, memory region to @@ -1205,7 +1223,8 @@ static int mx3fb_resume(struct platform_device *pdev) * area is remapped, all virtual memory access to the video memory should occur * at the new region. */ -static int mx3fb_map_video_memory(struct fb_info *fbi, unsigned int mem_len) +static int mx3fb_map_video_memory(struct fb_info *fbi, unsigned int mem_len, + bool lock) { int retval = 0; dma_addr_t addr; @@ -1221,10 +1240,12 @@ static int mx3fb_map_video_memory(struct fb_info *fbi, unsigned int mem_len) goto err0; } - mutex_lock(&fbi->mm_lock); + if (lock) + mutex_lock(&fbi->mm_lock); fbi->fix.smem_start = addr; fbi->fix.smem_len = mem_len; - mutex_unlock(&fbi->mm_lock); + if (lock) + mutex_unlock(&fbi->mm_lock); dev_dbg(fbi->device, "allocated fb @ p=0x%08x, v=0x%p, size=%d.\n", (uint32_t) fbi->fix.smem_start, fbi->screen_base, fbi->fix.smem_len); @@ -1365,6 +1386,11 @@ static int init_fb_chan(struct mx3fb_data *mx3fb, struct idmac_channel *ichan) init_completion(&mx3fbi->flip_cmpl); disable_irq(ichan->eof_irq); dev_dbg(mx3fb->dev, "disabling irq %d\n", ichan->eof_irq); + ret = __set_par(fbi, false); + if (ret < 0) + goto esetpar; + + __blank(FB_BLANK_UNBLANK, fbi); dev_info(dev, "registered, using mode %s\n", fb_mode); -- cgit v1.2.3 From 2198a64a7487aba036f71998ade8a6528070d32c Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Thu, 6 Aug 2009 15:07:41 -0700 Subject: drivers/mmc: correct error-handling code sdhci_alloc_host returns an ERR_PTR value in an error case instead of NULL. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @match exists@ expression x, E; statement S1, S2; @@ x = sdhci_alloc_host(...) ... when != x = E ( * if (x == NULL || ...) S1 else S2 | * if (x == NULL && ...) S1 else S2 ) // Signed-off-by: Julia Lawall Acked-by: Anton Vorontsov Cc: Matt Fleming Cc: Ian Molton Cc: "Roberto A. Foglietta" Cc: Philip Langdale Cc: Pierre Ossman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/mmc/host/sdhci-of.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci-of.c b/drivers/mmc/host/sdhci-of.c index 908844327db..1e8aa590bb3 100644 --- a/drivers/mmc/host/sdhci-of.c +++ b/drivers/mmc/host/sdhci-of.c @@ -234,7 +234,7 @@ static int __devinit sdhci_of_probe(struct of_device *ofdev, return -ENODEV; host = sdhci_alloc_host(&ofdev->dev, sizeof(*of_host)); - if (!host) + if (IS_ERR(host)) return -ENOMEM; of_host = sdhci_priv(host); -- cgit v1.2.3 From 9c8a8228d0827e0d91d28527209988f672f97d28 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 6 Aug 2009 15:09:28 -0700 Subject: execve: must clear current->clear_child_tid While looking at Jens Rosenboom bug report (http://lkml.org/lkml/2009/7/27/35) about strange sys_futex call done from a dying "ps" program, we found following problem. clone() syscall has special support for TID of created threads. This support includes two features. One (CLONE_CHILD_SETTID) is to set an integer into user memory with the TID value. One (CLONE_CHILD_CLEARTID) is to clear this same integer once the created thread dies. The integer location is a user provided pointer, provided at clone() time. kernel keeps this pointer value into current->clear_child_tid. At execve() time, we should make sure kernel doesnt keep this user provided pointer, as full user memory is replaced by a new one. As glibc fork() actually uses clone() syscall with CLONE_CHILD_SETTID and CLONE_CHILD_CLEARTID set, chances are high that we might corrupt user memory in forked processes. Following sequence could happen: 1) bash (or any program) starts a new process, by a fork() call that glibc maps to a clone( ... CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID ...) syscall 2) When new process starts, its current->clear_child_tid is set to a location that has a meaning only in bash (or initial program) context (&THREAD_SELF->tid) 3) This new process does the execve() syscall to start a new program. current->clear_child_tid is left unchanged (a non NULL value) 4) If this new program creates some threads, and initial thread exits, kernel will attempt to clear the integer pointed by current->clear_child_tid from mm_release() : if (tsk->clear_child_tid && !(tsk->flags & PF_SIGNALED) && atomic_read(&mm->mm_users) > 1) { u32 __user * tidptr = tsk->clear_child_tid; tsk->clear_child_tid = NULL; /* * We don't check the error code - if userspace has * not set up a proper pointer then tough luck. */ << here >> put_user(0, tidptr); sys_futex(tidptr, FUTEX_WAKE, 1, NULL, NULL, 0); } 5) OR : if new program is not multi-threaded, but spied by /proc/pid users (ps command for example), mm_users > 1, and the exiting program could corrupt 4 bytes in a persistent memory area (shm or memory mapped file) If current->clear_child_tid points to a writeable portion of memory of the new program, kernel happily and silently corrupts 4 bytes of memory, with unexpected effects. Fix is straightforward and should not break any sane program. Reported-by: Jens Rosenboom Acked-by: Linus Torvalds Signed-off-by: Eric Dumazet Signed-off-by: Oleg Nesterov Cc: Peter Zijlstra Cc: Sonny Rao Cc: Ingo Molnar Cc: Thomas Gleixner Cc: Ulrich Drepper Cc: Oleg Nesterov Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/fork.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/kernel/fork.c b/kernel/fork.c index 466531eb92c..021e1138556 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -568,18 +568,18 @@ void mm_release(struct task_struct *tsk, struct mm_struct *mm) * the value intact in a core dump, and to save the unnecessary * trouble otherwise. Userland only wants this done for a sys_exit. */ - if (tsk->clear_child_tid - && !(tsk->flags & PF_SIGNALED) - && atomic_read(&mm->mm_users) > 1) { - u32 __user * tidptr = tsk->clear_child_tid; + if (tsk->clear_child_tid) { + if (!(tsk->flags & PF_SIGNALED) && + atomic_read(&mm->mm_users) > 1) { + /* + * We don't check the error code - if userspace has + * not set up a proper pointer then tough luck. + */ + put_user(0, tsk->clear_child_tid); + sys_futex(tsk->clear_child_tid, FUTEX_WAKE, + 1, NULL, NULL, 0); + } tsk->clear_child_tid = NULL; - - /* - * We don't check the error code - if userspace has - * not set up a proper pointer then tough luck. - */ - put_user(0, tidptr); - sys_futex(tidptr, FUTEX_WAKE, 1, NULL, NULL, 0); } } -- cgit v1.2.3 From daeb6b6fbe27049f465c48a7d0ee5555c3b84064 Mon Sep 17 00:00:00 2001 From: Phillip Lougher Date: Thu, 6 Aug 2009 15:09:30 -0700 Subject: bzip2/lzma/gzip: fix comments describing decompressor API Fix and improve comments in decompress/generic.h that describe the decompressor API. Also remove an unused definition, and rename INBUF_LEN in lib/decompress_inflate.c to conform to bzip2/lzma naming. Signed-off-by: Phillip Lougher Cc: "H. Peter Anvin" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/decompress/generic.h | 32 +++++++++++++++++++------------- lib/decompress_inflate.c | 8 ++++---- 2 files changed, 23 insertions(+), 17 deletions(-) diff --git a/include/linux/decompress/generic.h b/include/linux/decompress/generic.h index 6dfb856327b..0c7111a55a1 100644 --- a/include/linux/decompress/generic.h +++ b/include/linux/decompress/generic.h @@ -1,31 +1,37 @@ #ifndef DECOMPRESS_GENERIC_H #define DECOMPRESS_GENERIC_H -/* Minimal chunksize to be read. - *Bzip2 prefers at least 4096 - *Lzma prefers 0x10000 */ -#define COMPR_IOBUF_SIZE 4096 - typedef int (*decompress_fn) (unsigned char *inbuf, int len, int(*fill)(void*, unsigned int), - int(*writebb)(void*, unsigned int), - unsigned char *output, + int(*flush)(void*, unsigned int), + unsigned char *outbuf, int *posp, void(*error)(char *x)); /* inbuf - input buffer *len - len of pre-read data in inbuf - *fill - function to fill inbuf if empty - *writebb - function to write out outbug + *fill - function to fill inbuf when empty + *flush - function to write out outbuf + *outbuf - output buffer *posp - if non-null, input position (number of bytes read) will be * returned here * - *If len != 0, the inbuf is initialized (with as much data), and fill - *should not be called - *If len = 0, the inbuf is allocated, but empty. Its size is IOBUF_SIZE - *fill should be called (repeatedly...) to read data, at most IOBUF_SIZE + *If len != 0, inbuf should contain all the necessary input data, and fill + *should be NULL + *If len = 0, inbuf can be NULL, in which case the decompressor will allocate + *the input buffer. If inbuf != NULL it must be at least XXX_IOBUF_SIZE bytes. + *fill will be called (repeatedly...) to read data, at most XXX_IOBUF_SIZE + *bytes should be read per call. Replace XXX with the appropriate decompressor + *name, i.e. LZMA_IOBUF_SIZE. + * + *If flush = NULL, outbuf must be large enough to buffer all the expected + *output. If flush != NULL, the output buffer will be allocated by the + *decompressor (outbuf = NULL), and the flush function will be called to + *flush the output buffer at the appropriate time (decompressor and stream + *dependent). */ + /* Utility routine to detect the decompression method */ decompress_fn decompress_method(const unsigned char *inbuf, int len, const char **name); diff --git a/lib/decompress_inflate.c b/lib/decompress_inflate.c index e36b296fc9f..bfe605ac534 100644 --- a/lib/decompress_inflate.c +++ b/lib/decompress_inflate.c @@ -25,7 +25,7 @@ #include #include -#define INBUF_LEN (16*1024) +#define GZIP_IOBUF_SIZE (16*1024) /* Included from initramfs et al code */ STATIC int INIT gunzip(unsigned char *buf, int len, @@ -55,7 +55,7 @@ STATIC int INIT gunzip(unsigned char *buf, int len, if (buf) zbuf = buf; else { - zbuf = malloc(INBUF_LEN); + zbuf = malloc(GZIP_IOBUF_SIZE); len = 0; } if (!zbuf) { @@ -77,7 +77,7 @@ STATIC int INIT gunzip(unsigned char *buf, int len, } if (len == 0) - len = fill(zbuf, INBUF_LEN); + len = fill(zbuf, GZIP_IOBUF_SIZE); /* verify the gzip header */ if (len < 10 || @@ -113,7 +113,7 @@ STATIC int INIT gunzip(unsigned char *buf, int len, while (rc == Z_OK) { if (strm->avail_in == 0) { /* TODO: handle case where both pos and fill are set */ - len = fill(zbuf, INBUF_LEN); + len = fill(zbuf, GZIP_IOBUF_SIZE); if (len < 0) { rc = -1; error("read error"); -- cgit v1.2.3 From b1af4315d823a2b6659c5b14bc17f7bc61878ef4 Mon Sep 17 00:00:00 2001 From: Phillip Lougher Date: Thu, 6 Aug 2009 15:09:31 -0700 Subject: bzip2/lzma: remove nasty uncompressed size hack in pre-boot environment decompress_bunzip2 and decompress_unlzma have a nasty hack that subtracts 4 from the input length if being called in the pre-boot environment. This is a nasty hack because it relies on the fact that flush = NULL only when called from the pre-boot environment (i.e. arch/x86/boot/compressed/misc.c). initramfs.c/do_mounts_rd.c pass in a flush buffer (flush != NULL). This hack prevents the decompressors from being used with flush = NULL by other callers unless knowledge of the hack is propagated to them. This patch removes the hack by making decompress (called only from the pre-boot environment) a wrapper function that subtracts 4 from the input length before calling the decompressor. Signed-off-by: Phillip Lougher Cc: "H. Peter Anvin" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- lib/decompress_bunzip2.c | 22 ++++++++++++++++------ lib/decompress_unlzma.c | 21 ++++++++++++++++----- 2 files changed, 32 insertions(+), 11 deletions(-) diff --git a/lib/decompress_bunzip2.c b/lib/decompress_bunzip2.c index 708e2a86d87..d3dc9f2beb2 100644 --- a/lib/decompress_bunzip2.c +++ b/lib/decompress_bunzip2.c @@ -45,9 +45,11 @@ */ -#ifndef STATIC +#ifdef STATIC +#define PREBOOT +#else #include -#endif /* !STATIC */ +#endif /* STATIC */ #include #include @@ -681,9 +683,7 @@ STATIC int INIT bunzip2(unsigned char *buf, int len, set_error_fn(error_fn); if (flush) outbuf = malloc(BZIP2_IOBUF_SIZE); - else - len -= 4; /* Uncompressed size hack active in pre-boot - environment */ + if (!outbuf) { error("Could not allocate output bufer"); return -1; @@ -733,4 +733,14 @@ exit_0: return i; } -#define decompress bunzip2 +#ifdef PREBOOT +STATIC int INIT decompress(unsigned char *buf, int len, + int(*fill)(void*, unsigned int), + int(*flush)(void*, unsigned int), + unsigned char *outbuf, + int *pos, + void(*error_fn)(char *x)) +{ + return bunzip2(buf, len - 4, fill, flush, outbuf, pos, error_fn); +} +#endif diff --git a/lib/decompress_unlzma.c b/lib/decompress_unlzma.c index 32123a1340e..d3f9468e49d 100644 --- a/lib/decompress_unlzma.c +++ b/lib/decompress_unlzma.c @@ -29,7 +29,9 @@ *Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ -#ifndef STATIC +#ifdef STATIC +#define PREBOOT +#else #include #endif /* STATIC */ @@ -543,9 +545,7 @@ STATIC inline int INIT unlzma(unsigned char *buf, int in_len, int ret = -1; set_error_fn(error_fn); - if (!flush) - in_len -= 4; /* Uncompressed size hack active in pre-boot - environment */ + if (buf) inbuf = buf; else @@ -645,4 +645,15 @@ exit_0: return ret; } -#define decompress unlzma +#ifdef PREBOOT +STATIC int INIT decompress(unsigned char *buf, int in_len, + int(*fill)(void*, unsigned int), + int(*flush)(void*, unsigned int), + unsigned char *output, + int *posp, + void(*error_fn)(char *x) + ) +{ + return unlzma(buf, in_len - 4, fill, flush, output, posp, error_fn); +} +#endif -- cgit v1.2.3 From 9e5cf0ca2e9b65110ae5f094d7f0f7165cd1bbbb Mon Sep 17 00:00:00 2001 From: Albin Tonnerre Date: Thu, 6 Aug 2009 15:09:32 -0700 Subject: lib/decompress_*: only include if STATIC is not defined These includes were added by 079effb6933f34b9b1b67b08bd4fd7fb672d16ef ("kmemtrace, kbuild: fix slab.h dependency problem in lib/decompress_inflate.c") to fix the build when using kmemtrace. However this is not necessary when used to create a compressed kernel, and actually creates issues (brings a lot of things unavailable in the decompression environment), so don't include it if STATIC is defined. Signed-off-by: Albin Tonnerre Cc: Sam Ravnborg Cc: Russell King Cc: Ingo Molnar Cc: Thomas Gleixner Cc: "H. Peter Anvin" Cc: Pekka Enberg Cc: Eduard - Gabriel Munteanu Cc: Phillip Lougher Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- lib/decompress_bunzip2.c | 2 +- lib/decompress_inflate.c | 2 +- lib/decompress_unlzma.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/lib/decompress_bunzip2.c b/lib/decompress_bunzip2.c index d3dc9f2beb2..600f473a561 100644 --- a/lib/decompress_bunzip2.c +++ b/lib/decompress_bunzip2.c @@ -49,10 +49,10 @@ #define PREBOOT #else #include +#include #endif /* STATIC */ #include -#include #ifndef INT_MAX #define INT_MAX 0x7fffffff diff --git a/lib/decompress_inflate.c b/lib/decompress_inflate.c index bfe605ac534..68dfce59c1b 100644 --- a/lib/decompress_inflate.c +++ b/lib/decompress_inflate.c @@ -19,11 +19,11 @@ #include "zlib_inflate/inflate.h" #include "zlib_inflate/infutil.h" +#include #endif /* STATIC */ #include -#include #define GZIP_IOBUF_SIZE (16*1024) diff --git a/lib/decompress_unlzma.c b/lib/decompress_unlzma.c index d3f9468e49d..0b954e04bd3 100644 --- a/lib/decompress_unlzma.c +++ b/lib/decompress_unlzma.c @@ -33,10 +33,10 @@ #define PREBOOT #else #include +#include #endif /* STATIC */ #include -#include #define MIN(a, b) (((a) < (b)) ? (a) : (b)) -- cgit v1.2.3 From 3440625d78711bee41a84cf29c3d8c579b522666 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Thu, 6 Aug 2009 15:09:34 -0700 Subject: flat: fix uninitialized ptr with shared libs The new credentials code broke load_flat_shared_library() as it now uses an uninitialized cred pointer. Reported-by: Bernd Schmidt Tested-by: Bernd Schmidt Cc: Mike Frysinger Cc: David Howells Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/binfmt_flat.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c index 697f6b5f131..e92f229e3c6 100644 --- a/fs/binfmt_flat.c +++ b/fs/binfmt_flat.c @@ -828,15 +828,22 @@ static int load_flat_shared_library(int id, struct lib_info *libs) if (IS_ERR(bprm.file)) return res; + bprm.cred = prepare_exec_creds(); + res = -ENOMEM; + if (!bprm.cred) + goto out; + res = prepare_binprm(&bprm); if (res <= (unsigned long)-4096) res = load_flat_file(&bprm, libs, id, NULL); - if (bprm.file) { - allow_write_access(bprm.file); - fput(bprm.file); - bprm.file = NULL; - } + + abort_creds(bprm.cred); + +out: + allow_write_access(bprm.file); + fput(bprm.file); + return(res); } -- cgit v1.2.3 From 4baf8c9201e88546918cbfa61ea8062c38bc1644 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 7 Aug 2009 13:47:08 -0400 Subject: Btrfs: remove superfluous NULL pointer check in btrfs_rename() This takes care of the following entry from Dan's list: fs/btrfs/inode.c +4788 btrfs_rename(36) warning: variable derefenced before check 'old_inode' Reported-by: Dan Carpenter Cc: Jonathan Corbet Cc: Eugene Teo Cc: Julia Lawall Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Chris Mason --- fs/btrfs/inode.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 3ea827ddf0f..04b53b5ebe5 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -4806,8 +4806,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry, * and the replacement file is large. Start IO on it now so * we don't add too much work to the end of the transaction */ - if (new_inode && old_inode && S_ISREG(old_inode->i_mode) && - new_inode->i_size && + if (new_inode && S_ISREG(old_inode->i_mode) && new_inode->i_size && old_inode->i_size > BTRFS_ORDERED_OPERATIONS_FLUSH_LIMIT) filemap_flush(old_inode->i_mapping); -- cgit v1.2.3 From 60f2e8f8a07331097a57ec4abcdc680405579377 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Fri, 7 Aug 2009 13:51:33 -0400 Subject: Btrfs: correct error-handling zlib error handling find_zlib_workspace returns an ERR_PTR value in an error case instead of NULL. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @match exists@ expression x, E; statement S1, S2; @@ x = find_zlib_workspace(...) ... when != x = E ( * if (x == NULL || ...) S1 else S2 | * if (x == NULL && ...) S1 else S2 ) // Signed-off-by: Julia Lawall Signed-off-by: Chris Mason --- fs/btrfs/zlib.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/btrfs/zlib.c b/fs/btrfs/zlib.c index ecfbce836d3..3e2b90eaa23 100644 --- a/fs/btrfs/zlib.c +++ b/fs/btrfs/zlib.c @@ -208,7 +208,7 @@ int btrfs_zlib_compress_pages(struct address_space *mapping, *total_in = 0; workspace = find_zlib_workspace(); - if (!workspace) + if (IS_ERR(workspace)) return -1; if (Z_OK != zlib_deflateInit(&workspace->def_strm, 3)) { @@ -366,7 +366,7 @@ int btrfs_zlib_decompress_biovec(struct page **pages_in, char *kaddr; workspace = find_zlib_workspace(); - if (!workspace) + if (IS_ERR(workspace)) return -ENOMEM; data_in = kmap(pages_in[page_in_index]); @@ -547,7 +547,7 @@ int btrfs_zlib_decompress(unsigned char *data_in, return -ENOMEM; workspace = find_zlib_workspace(); - if (!workspace) + if (IS_ERR(workspace)) return -ENOMEM; workspace->inf_strm.next_in = data_in; -- cgit v1.2.3 From ceab36edd3d3ad3ffd01d41d6d1e05ac1ff8357e Mon Sep 17 00:00:00 2001 From: Yan Zheng Date: Fri, 7 Aug 2009 13:51:33 -0400 Subject: Btrfs: fix balancing oops when invalidate_inode_pages2 returns EBUSY invalidate_inode_pages2_range may return -EBUSY occasionally which results Oops. This patch fixes the issue by moving invalidate_inode_pages2_range into a loop and keeping calling it until the return value is not -EBUSY. The EBUSY return is temporary, and can happen when the btrfs release page function is unable to release a page because the EXTENT_LOCK bit is set. Signed-off-by: Yan Zheng Signed-off-by: Chris Mason --- fs/btrfs/relocation.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index e71264d1c2c..c04f7f21260 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -2553,8 +2553,13 @@ int relocate_inode_pages(struct inode *inode, u64 start, u64 len) last_index = (start + len - 1) >> PAGE_CACHE_SHIFT; /* make sure the dirty trick played by the caller work */ - ret = invalidate_inode_pages2_range(inode->i_mapping, - first_index, last_index); + while (1) { + ret = invalidate_inode_pages2_range(inode->i_mapping, + first_index, last_index); + if (ret != -EBUSY) + break; + schedule_timeout(HZ/10); + } if (ret) goto out_unlock; -- cgit v1.2.3 From 49276560c9004fce24c42e3c0ad75f34d956fc63 Mon Sep 17 00:00:00 2001 From: Khanh-Dang Nguyen Thu Lam Date: Tue, 28 Jul 2009 19:41:17 +0200 Subject: USB: pl2303: New vendor and product id I am submitting a patch for the pl2303 driver. This patch adds support for the "Sony QN-3USB" cable (vendor=0x054c, product=0x0437). This USB cable is a so-called data cable used to connect a Sony mobile phone to a computer. Supported models are Sony CMD-J5, J6, J7, J16, J26, J70 and Z7. I have used this patch with my Sony CMD-J70 for several days and I haven't encountered any kernel/hardware issue. From: Khanh-Dang Nguyen Thu Lam Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/pl2303.c | 1 + drivers/usb/serial/pl2303.h | 4 ++++ 2 files changed, 5 insertions(+) diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 7d15bfa7c2d..3e86815b270 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -95,6 +95,7 @@ static struct usb_device_id id_table [] = { { USB_DEVICE(SUPERIAL_VENDOR_ID, SUPERIAL_PRODUCT_ID) }, { USB_DEVICE(HP_VENDOR_ID, HP_LD220_PRODUCT_ID) }, { USB_DEVICE(CRESSI_VENDOR_ID, CRESSI_EDY_PRODUCT_ID) }, + { USB_DEVICE(SONY_VENDOR_ID, SONY_QN3USB_PRODUCT_ID) }, { } /* Terminating entry */ }; diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h index 12aac7d2462..ee9505e1dd9 100644 --- a/drivers/usb/serial/pl2303.h +++ b/drivers/usb/serial/pl2303.h @@ -126,3 +126,7 @@ /* Cressi Edy (diving computer) PC interface */ #define CRESSI_VENDOR_ID 0x04b8 #define CRESSI_EDY_PRODUCT_ID 0x0521 + +/* Sony, USB data cable for CMD-Jxx mobile phones */ +#define SONY_VENDOR_ID 0x054c +#define SONY_QN3USB_PRODUCT_ID 0x0437 -- cgit v1.2.3 From 18753ebc8a98efe0e8ff6167afb31cef220c8e50 Mon Sep 17 00:00:00 2001 From: Michael Buesch Date: Wed, 29 Jul 2009 11:39:03 +0200 Subject: USB: devio: Properly do access_ok() checks access_ok() checks must be done on every part of the userspace structure that is accessed. If access_ok() on one part of the struct succeeded, it does not imply it will succeed on other parts of the struct. (Does depend on the architecture implementation of access_ok()). This changes the __get_user() users to first check access_ok() on the data structure. Signed-off-by: Michael Buesch Cc: stable Cc: Pete Zaitcev Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/devio.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 38b8bce782d..e192fa05f8a 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -1321,7 +1321,8 @@ static int get_urb32(struct usbdevfs_urb *kurb, struct usbdevfs_urb32 __user *uurb) { __u32 uptr; - if (get_user(kurb->type, &uurb->type) || + if (!access_ok(VERIFY_READ, uurb, sizeof(*uurb)) || + __get_user(kurb->type, &uurb->type) || __get_user(kurb->endpoint, &uurb->endpoint) || __get_user(kurb->status, &uurb->status) || __get_user(kurb->flags, &uurb->flags) || @@ -1536,8 +1537,9 @@ static int proc_ioctl_compat(struct dev_state *ps, compat_uptr_t arg) u32 udata; uioc = compat_ptr((long)arg); - if (get_user(ctrl.ifno, &uioc->ifno) || - get_user(ctrl.ioctl_code, &uioc->ioctl_code) || + if (!access_ok(VERIFY_READ, uioc, sizeof(*uioc)) || + __get_user(ctrl.ifno, &uioc->ifno) || + __get_user(ctrl.ioctl_code, &uioc->ioctl_code) || __get_user(udata, &uioc->data)) return -EFAULT; ctrl.data = compat_ptr(udata); -- cgit v1.2.3 From e8e2ff462dd92693f29eb848f42d3eb720390d59 Mon Sep 17 00:00:00 2001 From: "Gupta, Ajay Kumar" Date: Wed, 29 Jul 2009 11:58:57 +0530 Subject: USB: musb: fix the nop registration for OMAP3EVM OMAP3EVM uses ISP1504 phy which doesn't require any programming and thus has to use NOP otg transceiver. Cleanups being done: - Remove unwanted code in usb-musb.c file - Register NOP in OMAP3EVM board file using usb_nop_xceiv_register(). - Select NOP_USB_XCEIV for OMAP3EVM boards. - Don't enable TWL4030_USB in omap3_evm_defconfig Signed-off-by: Ajay Kumar Gupta Signed-off-by: Eino-Ville Talvala Acked-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- arch/arm/configs/omap3_evm_defconfig | 2 +- arch/arm/mach-omap2/board-omap3evm.c | 5 +++++ arch/arm/mach-omap2/usb-musb.c | 21 --------------------- drivers/usb/musb/Kconfig | 1 + 4 files changed, 7 insertions(+), 22 deletions(-) diff --git a/arch/arm/configs/omap3_evm_defconfig b/arch/arm/configs/omap3_evm_defconfig index 28be17fbc15..d5ff4776cd0 100644 --- a/arch/arm/configs/omap3_evm_defconfig +++ b/arch/arm/configs/omap3_evm_defconfig @@ -1107,7 +1107,7 @@ CONFIG_USB_ZERO=m CONFIG_USB_OTG_UTILS=y # CONFIG_USB_GPIO_VBUS is not set # CONFIG_ISP1301_OMAP is not set -CONFIG_TWL4030_USB=y +# CONFIG_TWL4030_USB is not set # CONFIG_NOP_USB_XCEIV is not set CONFIG_MMC=y # CONFIG_MMC_DEBUG is not set diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c index d3cc145814d..cf3dd771a67 100644 --- a/arch/arm/mach-omap2/board-omap3evm.c +++ b/arch/arm/mach-omap2/board-omap3evm.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include @@ -307,6 +308,10 @@ static void __init omap3_evm_init(void) ARRAY_SIZE(omap3evm_spi_board_info)); omap_serial_init(); +#ifdef CONFIG_NOP_USB_XCEIV + /* OMAP3EVM uses ISP1504 phy and so register nop transceiver */ + usb_nop_xceiv_register(); +#endif usb_musb_init(); ads7846_dev_init(); } diff --git a/arch/arm/mach-omap2/usb-musb.c b/arch/arm/mach-omap2/usb-musb.c index d85296dc896..739e59e8025 100644 --- a/arch/arm/mach-omap2/usb-musb.c +++ b/arch/arm/mach-omap2/usb-musb.c @@ -155,20 +155,6 @@ static struct platform_device musb_device = { .resource = musb_resources, }; -#ifdef CONFIG_NOP_USB_XCEIV -static u64 nop_xceiv_dmamask = DMA_BIT_MASK(32); - -static struct platform_device nop_xceiv_device = { - .name = "nop_usb_xceiv", - .id = -1, - .dev = { - .dma_mask = &nop_xceiv_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(32), - .platform_data = NULL, - }, -}; -#endif - void __init usb_musb_init(void) { if (cpu_is_omap243x()) @@ -183,13 +169,6 @@ void __init usb_musb_init(void) */ musb_plat.clock = "ick"; -#ifdef CONFIG_NOP_USB_XCEIV - if (platform_device_register(&nop_xceiv_device) < 0) { - printk(KERN_ERR "Unable to register NOP-XCEIV device\n"); - return; - } -#endif - if (platform_device_register(&musb_device) < 0) { printk(KERN_ERR "Unable to register HS-USB (MUSB) device\n"); return; diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig index 70073b157f0..803adcb5ac1 100644 --- a/drivers/usb/musb/Kconfig +++ b/drivers/usb/musb/Kconfig @@ -12,6 +12,7 @@ config USB_MUSB_HDRC depends on !SUPERH select NOP_USB_XCEIV if ARCH_DAVINCI select TWL4030_USB if MACH_OMAP_3430SDP + select NOP_USB_XCEIV if MACH_OMAP3EVM select USB_OTG_UTILS tristate 'Inventra Highspeed Dual Role Controller (TI, ADI, ...)' help -- cgit v1.2.3 From 01105a246345f011fde64d24a601090b646e9e4c Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Thu, 30 Jul 2009 15:28:14 -0400 Subject: USB: usbfs: fix -ENOENT error code to be -ENODEV This patch (as1272) changes the error code returned when an open call for a USB device node fails to locate the corresponding device. The appropriate error code is -ENODEV, not -ENOENT. Signed-off-by: Alan Stern CC: Kay Sievers Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/devio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index e192fa05f8a..4247eccf858 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -595,7 +595,7 @@ static int usbdev_open(struct inode *inode, struct file *file) if (!ps) goto out; - ret = -ENOENT; + ret = -ENODEV; /* usbdev device-node */ if (imajor(inode) == USB_DEVICE_MAJOR) -- cgit v1.2.3 From 7a0f0d951273eee889c2441846842348ebc00a2a Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Fri, 31 Jul 2009 10:40:22 -0400 Subject: USB: EHCI: fix two new bugs related to Clear-TT-Buffer This patch (as1273) fixes two(!) bugs introduced by the new Clear-TT-Buffer implementation in ehci-hcd. It is now possible for an idle QH to have some URBs on its queue -- this will happen if a Clear-TT-Buffer is pending for the QH's endpoint. Consequently we should not issue a warning when someone tries to unlink an URB from an idle QH; instead we should process the request immediately. The refcounts for QHs could get messed up, because submit_async() would increment the refcount when calling qh_link_async() and qh_link_async() would then refuse to link the QH into the schedule if a Clear-TT-Buffer was pending. Instead we should increment the refcount only when the QH actually is added to the schedule. The current code tries to be clever by leaving the refcount alone if an unlink is immediately followed by a relink; the patch changes this to an unconditional decrement and increment (although they occur in the opposite order). Signed-off-by: Alan Stern CC: David Brownell Tested-by: Manuel Lauss Tested-by: Matthijs Kooijman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-hcd.c | 3 ++- drivers/usb/host/ehci-q.c | 6 +++--- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 7d03549c333..11c627ce602 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -903,7 +903,8 @@ static int ehci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) /* already started */ break; case QH_STATE_IDLE: - WARN_ON(1); + /* QH might be waiting for a Clear-TT-Buffer */ + qh_completions(ehci, qh); break; } break; diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index 9a1384747f3..b2738050557 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -940,6 +940,7 @@ static void qh_link_async (struct ehci_hcd *ehci, struct ehci_qh *qh) head->qh_next.qh = qh; head->hw_next = dma; + qh_get(qh); qh->xacterrs = QH_XACTERR_MAX; qh->qh_state = QH_STATE_LINKED; /* qtd completions reported later by interrupt */ @@ -1080,7 +1081,7 @@ submit_async ( * the HC and TT handle it when the TT has a buffer ready. */ if (likely (qh->qh_state == QH_STATE_IDLE)) - qh_link_async (ehci, qh_get (qh)); + qh_link_async(ehci, qh); done: spin_unlock_irqrestore (&ehci->lock, flags); if (unlikely (qh == NULL)) @@ -1115,8 +1116,6 @@ static void end_unlink_async (struct ehci_hcd *ehci) && HC_IS_RUNNING (ehci_to_hcd(ehci)->state)) qh_link_async (ehci, qh); else { - qh_put (qh); // refcount from async list - /* it's not free to turn the async schedule on/off; leave it * active but idle for a while once it empties. */ @@ -1124,6 +1123,7 @@ static void end_unlink_async (struct ehci_hcd *ehci) && ehci->async->qh_next.qh == NULL) timer_action (ehci, TIMER_ASYNC_OFF); } + qh_put(qh); /* refcount from async list */ if (next) { ehci->reclaim = NULL; -- cgit v1.2.3 From ef4638f955f2c4a667c8af20769d03f5ed3781ca Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Fri, 31 Jul 2009 10:41:40 -0400 Subject: USB: EHCI: fix counting of transaction error retries This patch (as1274) simplifies the counting of transaction-error retries. Now we will count up from 0 to QH_XACTERR_MAX instead of down from QH_XACTERR_MAX to 0. The patch also fixes a small bug: qh->xacterr was not getting initialized for interrupt endpoints. Signed-off-by: Alan Stern Tested-by: Matthijs Kooijman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-q.c | 9 ++++----- drivers/usb/host/ehci-sched.c | 1 + 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index b2738050557..7673554fa64 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -375,12 +375,11 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh) */ if ((token & QTD_STS_XACT) && QTD_CERR(token) == 0 && - --qh->xacterrs > 0 && + ++qh->xacterrs < QH_XACTERR_MAX && !urb->unlinked) { ehci_dbg(ehci, "detected XactErr len %zu/%zu retry %d\n", - qtd->length - QTD_LENGTH(token), qtd->length, - QH_XACTERR_MAX - qh->xacterrs); + qtd->length - QTD_LENGTH(token), qtd->length, qh->xacterrs); /* reset the token in the qtd and the * qh overlay (which still contains @@ -494,7 +493,7 @@ halt: last = qtd; /* reinit the xacterr counter for the next qtd */ - qh->xacterrs = QH_XACTERR_MAX; + qh->xacterrs = 0; } /* last urb's completion might still need calling */ @@ -941,7 +940,7 @@ static void qh_link_async (struct ehci_hcd *ehci, struct ehci_qh *qh) head->hw_next = dma; qh_get(qh); - qh->xacterrs = QH_XACTERR_MAX; + qh->xacterrs = 0; qh->qh_state = QH_STATE_LINKED; /* qtd completions reported later by interrupt */ } diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index 74f7f83b29a..edd61ee9032 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -542,6 +542,7 @@ static int qh_link_periodic (struct ehci_hcd *ehci, struct ehci_qh *qh) } } qh->qh_state = QH_STATE_LINKED; + qh->xacterrs = 0; qh_get (qh); /* update per-qh bandwidth for usbfs */ -- cgit v1.2.3 From c47aacc67a3d26dfab9c9b8965975ed2b2010b30 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marko=20H=C3=A4nninen?= Date: Fri, 31 Jul 2009 22:32:39 +0300 Subject: USB: ftdi_sio: add vendor and product id for Bayer glucose meter serial converter cable MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Attached patch adds USB vendor and product IDs for Bayer's USB to serial converter cable used by Bayer blood glucose meters. It seems to be a FT232RL based device and works without any problem with ftdi_sio driver when this patch is applied. See: http://winglucofacts.com/cables/ Signed-off-by: Marko Hänninen Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ftdi_sio.c | 1 + drivers/usb/serial/ftdi_sio.h | 7 +++++++ 2 files changed, 8 insertions(+) diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index b574878c78b..500087ea58a 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -699,6 +699,7 @@ static struct usb_device_id id_table_combined [] = { .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, { USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) }, { USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) }, + { USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) }, { }, /* Optional parameter entry */ { } /* Terminating entry */ }; diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h index 24dbd99e87d..f203b2a5130 100644 --- a/drivers/usb/serial/ftdi_sio.h +++ b/drivers/usb/serial/ftdi_sio.h @@ -953,6 +953,13 @@ #define GN_OTOMETRICS_VID 0x0c33 /* Vendor ID */ #define AURICAL_USB_PID 0x0010 /* Aurical USB Audiometer */ +/* + * Bayer Ascensia Contour blood glucose meter USB-converter cable. + * http://winglucofacts.com/cables/ + */ +#define BAYER_VID 0x1A79 +#define BAYER_CONTOUR_CABLE_PID 0x6001 + /* * BmRequestType: 1100 0000b * bRequest: FTDI_E2_READ -- cgit v1.2.3 From 50d0678e2026c18e4147f0b16b5853113659b82d Mon Sep 17 00:00:00 2001 From: Dhaval Vasa Date: Fri, 7 Aug 2009 17:26:49 +0530 Subject: USB: ftdi_sio: add product_id for Marvell OpenRD Base, Client reference: http://www.open-rd.org Signed-off-by: Dhaval Vasa Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ftdi_sio.c | 2 ++ drivers/usb/serial/ftdi_sio.h | 7 +++++++ 2 files changed, 9 insertions(+) diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 500087ea58a..8fec5d4455c 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -700,6 +700,8 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) }, { USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) }, { USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) }, + { USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID), + .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, { }, /* Optional parameter entry */ { } /* Terminating entry */ }; diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h index f203b2a5130..8c92b88166a 100644 --- a/drivers/usb/serial/ftdi_sio.h +++ b/drivers/usb/serial/ftdi_sio.h @@ -960,6 +960,13 @@ #define BAYER_VID 0x1A79 #define BAYER_CONTOUR_CABLE_PID 0x6001 +/* + * Marvell OpenRD Base, Client + * http://www.open-rd.org + * OpenRD Base, Client use VID 0x0403 + */ +#define MARVELL_OPENRD_PID 0x9e90 + /* * BmRequestType: 1100 0000b * bRequest: FTDI_E2_READ -- cgit v1.2.3 From c15e3ca1d822abba78c00b1ffc3e7b382a50396e Mon Sep 17 00:00:00 2001 From: Rogerio Brito Date: Thu, 6 Aug 2009 15:20:19 -0700 Subject: USB: storage: include Prolific Technology USB drive in unusual_devs list Add a quirk entry for the Leading Driver UD-11 usb flash drive. As Alan Stern told me, the device doesn't deal correctly with the locking media feature of the device, and this patch incorporates it. Compiled, tested, working. Signed-off-by: Rogerio Brito Cc: Phil Dibowitz Cc: Alan Stern Cc: Robert Hancock Cc: stable Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- drivers/usb/storage/unusual_devs.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index 1b9c5dd0fb2..7477d411959 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -838,6 +838,13 @@ UNUSUAL_DEV( 0x066f, 0x8000, 0x0001, 0x0001, US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_FIX_CAPACITY ), +/* Reported by Rogerio Brito */ +UNUSUAL_DEV( 0x067b, 0x2317, 0x0001, 0x001, + "Prolific Technology, Inc.", + "Mass Storage Device", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_NOT_LOCKABLE ), + /* Reported by Richard -=[]=- */ /* Change to bcdDeviceMin (0x0100 to 0x0001) reported by * Thomas Bartosik */ -- cgit v1.2.3 From cf7fdd57f978d40ceb9a0f58a25f5cf9c84d6f33 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Tue, 4 Aug 2009 23:52:09 +0200 Subject: USB: fix oops on disconnect in cdc-acm This patch fixes an oops caused when during an unplug a device's table of endpoints is zeroed before the driver is notified. A pointer to the endpoint must be cached. this fixes a regression caused by commit 5186ffee2320942c3dc9745f7930e0eb15329ca6 Therefore it should go into 2.6.31 Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-acm.c | 10 +++++----- drivers/usb/class/cdc-acm.h | 2 ++ 2 files changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index e1f89416ef8..2bfc41ece0e 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -387,7 +387,6 @@ static void acm_rx_tasklet(unsigned long _acm) struct acm_ru *rcv; unsigned long flags; unsigned char throttled; - struct usb_host_endpoint *ep; dbg("Entering acm_rx_tasklet"); @@ -463,14 +462,12 @@ urbs: rcv->buffer = buf; - ep = (usb_pipein(acm->rx_endpoint) ? acm->dev->ep_in : acm->dev->ep_out) - [usb_pipeendpoint(acm->rx_endpoint)]; - if (usb_endpoint_xfer_int(&ep->desc)) + if (acm->is_int_ep) usb_fill_int_urb(rcv->urb, acm->dev, acm->rx_endpoint, buf->base, acm->readsize, - acm_read_bulk, rcv, ep->desc.bInterval); + acm_read_bulk, rcv, acm->bInterval); else usb_fill_bulk_urb(rcv->urb, acm->dev, acm->rx_endpoint, @@ -1183,6 +1180,9 @@ made_compressed_probe: spin_lock_init(&acm->read_lock); mutex_init(&acm->mutex); acm->rx_endpoint = usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress); + acm->is_int_ep = usb_endpoint_xfer_int(epread); + if (acm->is_int_ep) + acm->bInterval = epread->bInterval; tty_port_init(&acm->port); acm->port.ops = &acm_port_ops; diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h index 1602324808b..c4a0ee8ffcc 100644 --- a/drivers/usb/class/cdc-acm.h +++ b/drivers/usb/class/cdc-acm.h @@ -126,6 +126,8 @@ struct acm { unsigned int ctrl_caps; /* control capabilities from the class specific header */ unsigned int susp_count; /* number of suspended interfaces */ int combined_interfaces:1; /* control and data collapsed */ + int is_int_ep:1; /* interrupt endpoints contrary to spec used */ + u8 bInterval; struct acm_wb *delayed_wb; /* write queued for a device about to be woken */ }; -- cgit v1.2.3 From 4d2da07bc876fc5bc455e0721df388a3db7e4ba5 Mon Sep 17 00:00:00 2001 From: Jakob Gruber Date: Thu, 30 Jul 2009 20:37:36 +0200 Subject: Staging: rt2870: Add USB ID for Linksys, Planex Communications, Belkin Linksys WUSB100, Belkin F5D8053 N, Planex Communications unknown model. Signed-off-by: Jakob Gruber Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rt2870/rt2870.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/staging/rt2870/rt2870.h b/drivers/staging/rt2870/rt2870.h index 29e3b53e52a..10e1640d61e 100644 --- a/drivers/staging/rt2870/rt2870.h +++ b/drivers/staging/rt2870/rt2870.h @@ -79,6 +79,7 @@ { \ {USB_DEVICE(0x148F,0x2770)}, /* Ralink */ \ {USB_DEVICE(0x1737,0x0071)}, /* Linksys WUSB600N */ \ + {USB_DEVICE(0x1737,0x0070)}, /* Linksys */ \ {USB_DEVICE(0x148F,0x2870)}, /* Ralink */ \ {USB_DEVICE(0x148F,0x3070)}, /* Ralink */ \ {USB_DEVICE(0x0B05,0x1731)}, /* Asus */ \ @@ -93,12 +94,14 @@ {USB_DEVICE(0x14B2,0x3C06)}, /* Conceptronic */ \ {USB_DEVICE(0x14B2,0x3C28)}, /* Conceptronic */ \ {USB_DEVICE(0x2019,0xED06)}, /* Planex Communications, Inc. */ \ + {USB_DEVICE(0x2019,0xED14)}, /* Planex Communications, Inc. */ \ {USB_DEVICE(0x2019,0xAB25)}, /* Planex Communications, Inc. RT3070 */ \ {USB_DEVICE(0x07D1,0x3C09)}, /* D-Link */ \ {USB_DEVICE(0x07D1,0x3C11)}, /* D-Link */ \ {USB_DEVICE(0x14B2,0x3C07)}, /* AL */ \ {USB_DEVICE(0x14B2,0x3C12)}, /* AL */ \ {USB_DEVICE(0x050D,0x8053)}, /* Belkin */ \ + {USB_DEVICE(0x050D,0x815C)}, /* Belkin */ \ {USB_DEVICE(0x14B2,0x3C23)}, /* Airlink */ \ {USB_DEVICE(0x14B2,0x3C27)}, /* Airlink */ \ {USB_DEVICE(0x07AA,0x002F)}, /* Corega */ \ -- cgit v1.2.3 From 2c63abf9e8a51dec886da482dfd8ae752581a61c Mon Sep 17 00:00:00 2001 From: Mike Galbraith Date: Fri, 31 Jul 2009 07:14:04 +0200 Subject: Staging: rt2870: Revert d44ca7 Removal of kernel_thread() API Staging: rt2870: Revert d44ca7 Removal of kernel_thread() API The sanity check this patch introduced triggers on shutdown, apparently due to threads having already exited by the time BUG_ON() is reached. Signed-off-by: Mike Galbraith Cc: Peter Teoh Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rt2860/rt_linux.h | 13 ++--- drivers/staging/rt2870/2870_main_dev.c | 67 +++++++++++++++++--------- drivers/staging/rt2870/common/2870_rtmp_init.c | 33 ++++++------- drivers/staging/rt2870/common/rtusb_io.c | 3 +- drivers/staging/rt2870/rt2870.h | 6 +-- 5 files changed, 68 insertions(+), 54 deletions(-) diff --git a/drivers/staging/rt2860/rt_linux.h b/drivers/staging/rt2860/rt_linux.h index 85175c18243..25b53ac3f82 100644 --- a/drivers/staging/rt2860/rt_linux.h +++ b/drivers/staging/rt2860/rt_linux.h @@ -43,9 +43,6 @@ #include "rtmp_type.h" #include #include -#if !defined(RT2860) && !defined(RT30xx) -#include -#endif #include #include @@ -166,9 +163,7 @@ typedef int (*HARD_START_XMIT_FUNC)(struct sk_buff *skb, struct net_device *net_ #ifndef RT30xx typedef struct pid * THREAD_PID; -#ifdef RT2860 #define THREAD_PID_INIT_VALUE NULL -#endif #define GET_PID(_v) find_get_pid(_v) #define GET_PID_NUMBER(_v) pid_nr(_v) #define CHECK_PID_LEGALITY(_pid) if (pid_nr(_pid) >= 0) @@ -188,12 +183,12 @@ struct os_cookie { dma_addr_t pAd_pa; #endif #ifdef RT2870 - struct usb_device *pUsb_Dev; + struct usb_device *pUsb_Dev; #ifndef RT30xx - struct task_struct *MLMEThr_task; - struct task_struct *RTUSBCmdThr_task; - struct task_struct *TimerQThr_task; + THREAD_PID MLMEThr_pid; + THREAD_PID RTUSBCmdThr_pid; + THREAD_PID TimerQThr_pid; #endif #ifdef RT30xx struct pid *MLMEThr_pid; diff --git a/drivers/staging/rt2870/2870_main_dev.c b/drivers/staging/rt2870/2870_main_dev.c index dd01c64fbf6..a4e8696ca39 100644 --- a/drivers/staging/rt2870/2870_main_dev.c +++ b/drivers/staging/rt2870/2870_main_dev.c @@ -235,7 +235,7 @@ INT MlmeThread( DBGPRINT(RT_DEBUG_TRACE,( "<---%s\n",__func__)); #ifndef RT30xx - pObj->MLMEThr_task = NULL; + pObj->MLMEThr_pid = THREAD_PID_INIT_VALUE; #endif #ifdef RT30xx pObj->MLMEThr_pid = NULL; @@ -348,7 +348,7 @@ INT RTUSBCmdThread( DBGPRINT(RT_DEBUG_TRACE,( "<---RTUSBCmdThread\n")); #ifndef RT30xx - pObj->RTUSBCmdThr_task = NULL; + pObj->RTUSBCmdThr_pid = THREAD_PID_INIT_VALUE; #endif #ifdef RT30xx pObj->RTUSBCmdThr_pid = NULL; @@ -447,7 +447,7 @@ INT TimerQThread( DBGPRINT(RT_DEBUG_TRACE,( "<---%s\n",__func__)); #ifndef RT30xx - pObj->TimerQThr_task = NULL; + pObj->TimerQThr_pid = THREAD_PID_INIT_VALUE; #endif #ifdef RT30xx pObj->TimerQThr_pid = NULL; @@ -883,46 +883,69 @@ VOID RT28xxThreadTerminate( // Terminate Threads #ifndef RT30xx - BUG_ON(pObj->TimerQThr_task == NULL); - CHECK_PID_LEGALITY(task_pid(pObj->TimerQThr_task)) + CHECK_PID_LEGALITY(pObj->TimerQThr_pid) { POS_COOKIE pObj = (POS_COOKIE)pAd->OS_Cookie; - printk(KERN_DEBUG "Terminate the TimerQThr pid=%d!\n", - pid_nr(task_pid(pObj->TimerQThr_task))); + printk("Terminate the TimerQThr_pid=%d!\n", GET_PID_NUMBER(pObj->TimerQThr_pid)); mb(); pAd->TimerFunc_kill = 1; mb(); - kthread_stop(pObj->TimerQThr_task); - pObj->TimerQThr_task = NULL; + ret = KILL_THREAD_PID(pObj->TimerQThr_pid, SIGTERM, 1); + if (ret) + { + printk(KERN_WARNING "%s: unable to stop TimerQThread, pid=%d, ret=%d!\n", + pAd->net_dev->name, GET_PID_NUMBER(pObj->TimerQThr_pid), ret); + } + else + { + wait_for_completion(&pAd->TimerQComplete); + pObj->TimerQThr_pid = THREAD_PID_INIT_VALUE; + } } - BUG_ON(pObj->MLMEThr_task == NULL); - CHECK_PID_LEGALITY(task_pid(pObj->MLMEThr_task)) + CHECK_PID_LEGALITY(pObj->MLMEThr_pid) { - printk(KERN_DEBUG "Terminate the MLMEThr pid=%d!\n", - pid_nr(task_pid(pObj->MLMEThr_task))); + printk("Terminate the MLMEThr_pid=%d!\n", GET_PID_NUMBER(pObj->MLMEThr_pid)); mb(); pAd->mlme_kill = 1; //RT28XX_MLME_HANDLER(pAd); mb(); - kthread_stop(pObj->MLMEThr_task); - pObj->MLMEThr_task = NULL; + ret = KILL_THREAD_PID(pObj->MLMEThr_pid, SIGTERM, 1); + if (ret) + { + printk (KERN_WARNING "%s: unable to Mlme thread, pid=%d, ret=%d!\n", + pAd->net_dev->name, GET_PID_NUMBER(pObj->MLMEThr_pid), ret); + } + else + { + //wait_for_completion (&pAd->notify); + wait_for_completion (&pAd->mlmeComplete); + pObj->MLMEThr_pid = THREAD_PID_INIT_VALUE; + } } - BUG_ON(pObj->RTUSBCmdThr_task == NULL); - CHECK_PID_LEGALITY(task_pid(pObj->RTUSBCmdThr_task)) + CHECK_PID_LEGALITY(pObj->RTUSBCmdThr_pid) { - printk(KERN_DEBUG "Terminate the RTUSBCmdThr pid=%d!\n", - pid_nr(task_pid(pObj->RTUSBCmdThr_task))); + printk("Terminate the RTUSBCmdThr_pid=%d!\n", GET_PID_NUMBER(pObj->RTUSBCmdThr_pid)); mb(); NdisAcquireSpinLock(&pAd->CmdQLock); pAd->CmdQ.CmdQState = RT2870_THREAD_STOPED; NdisReleaseSpinLock(&pAd->CmdQLock); mb(); //RTUSBCMDUp(pAd); - kthread_stop(pObj->RTUSBCmdThr_task); - pObj->RTUSBCmdThr_task = NULL; + ret = KILL_THREAD_PID(pObj->RTUSBCmdThr_pid, SIGTERM, 1); + if (ret) + { + printk(KERN_WARNING "%s: unable to RTUSBCmd thread, pid=%d, ret=%d!\n", + pAd->net_dev->name, GET_PID_NUMBER(pObj->RTUSBCmdThr_pid), ret); + } + else + { + //wait_for_completion (&pAd->notify); + wait_for_completion (&pAd->CmdQComplete); + pObj->RTUSBCmdThr_pid = THREAD_PID_INIT_VALUE; + } } #endif #ifdef RT30xx @@ -1045,7 +1068,7 @@ BOOLEAN RT28XXChipsetCheck( dev_p->descriptor.idProduct == rtusb_usb_id[i].idProduct) { #ifndef RT30xx - printk(KERN_DEBUG "rt2870: idVendor = 0x%x, idProduct = 0x%x\n", + printk("rt2870: idVendor = 0x%x, idProduct = 0x%x\n", #endif #ifdef RT30xx printk("rt2870: idVendor = 0x%x, idProduct = 0x%x\n", diff --git a/drivers/staging/rt2870/common/2870_rtmp_init.c b/drivers/staging/rt2870/common/2870_rtmp_init.c index 0f4c8af97e4..80909e9ab5a 100644 --- a/drivers/staging/rt2870/common/2870_rtmp_init.c +++ b/drivers/staging/rt2870/common/2870_rtmp_init.c @@ -700,8 +700,8 @@ NDIS_STATUS AdapterBlockAllocateMemory( usb_dev = pObj->pUsb_Dev; #ifndef RT30xx - pObj->MLMEThr_task = NULL; - pObj->RTUSBCmdThr_task = NULL; + pObj->MLMEThr_pid = THREAD_PID_INIT_VALUE; + pObj->RTUSBCmdThr_pid = THREAD_PID_INIT_VALUE; #endif #ifdef RT30xx pObj->MLMEThr_pid = NULL; @@ -743,7 +743,7 @@ NDIS_STATUS CreateThreads( PRTMP_ADAPTER pAd = net_dev->ml_priv; POS_COOKIE pObj = (POS_COOKIE) pAd->OS_Cookie; #ifndef RT30xx - struct task_struct *tsk; + pid_t pid_number = -1; #endif #ifdef RT30xx pid_t pid_number; @@ -762,10 +762,10 @@ NDIS_STATUS CreateThreads( // Creat MLME Thread #ifndef RT30xx - pObj->MLMEThr_task = NULL; - tsk = kthread_run(MlmeThread, pAd, "%s", pAd->net_dev->name); - - if (IS_ERR(tsk)) { + pObj->MLMEThr_pid= THREAD_PID_INIT_VALUE; + pid_number = kernel_thread(MlmeThread, pAd, CLONE_VM); + if (pid_number < 0) + { #endif #ifdef RT30xx pObj->MLMEThr_pid = NULL; @@ -778,7 +778,7 @@ NDIS_STATUS CreateThreads( } #ifndef RT30xx - pObj->MLMEThr_task = tsk; + pObj->MLMEThr_pid = GET_PID(pid_number); #endif #ifdef RT30xx pObj->MLMEThr_pid = find_get_pid(pid_number); @@ -788,10 +788,9 @@ NDIS_STATUS CreateThreads( // Creat Command Thread #ifndef RT30xx - pObj->RTUSBCmdThr_task = NULL; - tsk = kthread_run(RTUSBCmdThread, pAd, "%s", pAd->net_dev->name); - - if (IS_ERR(tsk) < 0) + pObj->RTUSBCmdThr_pid= THREAD_PID_INIT_VALUE; + pid_number = kernel_thread(RTUSBCmdThread, pAd, CLONE_VM); + if (pid_number < 0) #endif #ifdef RT30xx pObj->RTUSBCmdThr_pid = NULL; @@ -804,7 +803,7 @@ NDIS_STATUS CreateThreads( } #ifndef RT30xx - pObj->RTUSBCmdThr_task = tsk; + pObj->RTUSBCmdThr_pid = GET_PID(pid_number); #endif #ifdef RT30xx pObj->RTUSBCmdThr_pid = find_get_pid(pid_number); @@ -812,9 +811,9 @@ NDIS_STATUS CreateThreads( wait_for_completion(&(pAd->CmdQComplete)); #ifndef RT30xx - pObj->TimerQThr_task = NULL; - tsk = kthread_run(TimerQThread, pAd, "%s", pAd->net_dev->name); - if (IS_ERR(tsk) < 0) + pObj->TimerQThr_pid= THREAD_PID_INIT_VALUE; + pid_number = kernel_thread(TimerQThread, pAd, CLONE_VM); + if (pid_number < 0) #endif #ifdef RT30xx pObj->TimerQThr_pid = NULL; @@ -826,7 +825,7 @@ NDIS_STATUS CreateThreads( return NDIS_STATUS_FAILURE; } #ifndef RT30xx - pObj->TimerQThr_task = tsk; + pObj->TimerQThr_pid = GET_PID(pid_number); #endif #ifdef RT30xx pObj->TimerQThr_pid = find_get_pid(pid_number); diff --git a/drivers/staging/rt2870/common/rtusb_io.c b/drivers/staging/rt2870/common/rtusb_io.c index fd1b0c18f2a..704b5c2d509 100644 --- a/drivers/staging/rt2870/common/rtusb_io.c +++ b/drivers/staging/rt2870/common/rtusb_io.c @@ -984,8 +984,7 @@ NDIS_STATUS RTUSBEnqueueCmdFromNdis( POS_COOKIE pObj = (POS_COOKIE) pAd->OS_Cookie; #ifndef RT30xx - BUG_ON(pObj->RTUSBCmdThr_task == NULL); - CHECK_PID_LEGALITY(task_pid(pObj->RTUSBCmdThr_task)) + CHECK_PID_LEGALITY(pObj->RTUSBCmdThr_pid) #endif #ifdef RT30xx if (pObj->RTUSBCmdThr_pid < 0) diff --git a/drivers/staging/rt2870/rt2870.h b/drivers/staging/rt2870/rt2870.h index 10e1640d61e..2b8872b2fd9 100644 --- a/drivers/staging/rt2870/rt2870.h +++ b/drivers/staging/rt2870/rt2870.h @@ -590,16 +590,14 @@ VOID RTUSBBulkRxComplete(purbb_t pUrb, struct pt_regs *pt_regs); #define RTUSBMlmeUp(pAd) \ { \ POS_COOKIE pObj = (POS_COOKIE) pAd->OS_Cookie; \ - BUG_ON(pObj->MLMEThr_task == NULL); \ - CHECK_PID_LEGALITY(task_pid(pObj->MLMEThr_task)) \ + CHECK_PID_LEGALITY(pObj->MLMEThr_pid) \ up(&(pAd->mlme_semaphore)); \ } #define RTUSBCMDUp(pAd) \ { \ POS_COOKIE pObj = (POS_COOKIE) pAd->OS_Cookie; \ - BUG_ON(pObj->RTUSBCmdThr_task == NULL); \ - CHECK_PID_LEGALITY(task_pid(pObj->RTUSBCmdThr_task)) \ + CHECK_PID_LEGALITY(pObj->RTUSBCmdThr_pid) \ up(&(pAd->RTUSBCmd_semaphore)); \ } #endif -- cgit v1.2.3 From ce9c010c5c39df05ed81a06aba492c45ee0c6f19 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 4 Aug 2009 16:53:36 -0700 Subject: Staging: rtl8192su: fix build error This fixes a build error when selecting the rtl8192su driver as a module. This has been reported by me, and the opensuse kernel developer team, and I finally tracked it down. Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8192su/ieee80211.h | 2 +- drivers/staging/rtl8192su/ieee80211/ieee80211.h | 2 +- drivers/staging/rtl8192su/ieee80211/ieee80211_tx.c | 3 ++- drivers/staging/rtl8192su/r8192U_core.c | 2 +- 4 files changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/staging/rtl8192su/ieee80211.h b/drivers/staging/rtl8192su/ieee80211.h index 0edb09a536f..ea973931803 100644 --- a/drivers/staging/rtl8192su/ieee80211.h +++ b/drivers/staging/rtl8192su/ieee80211.h @@ -2645,7 +2645,7 @@ extern int ieee80211_encrypt_fragment( struct sk_buff *frag, int hdr_len); -extern int ieee80211_xmit(struct sk_buff *skb, +extern int rtl8192_ieee80211_xmit(struct sk_buff *skb, struct net_device *dev); extern void ieee80211_txb_free(struct ieee80211_txb *); diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211.h b/drivers/staging/rtl8192su/ieee80211/ieee80211.h index 720bfcbfadc..5e3a2cbed2b 100644 --- a/drivers/staging/rtl8192su/ieee80211/ieee80211.h +++ b/drivers/staging/rtl8192su/ieee80211/ieee80211.h @@ -2645,7 +2645,7 @@ extern int ieee80211_encrypt_fragment( struct sk_buff *frag, int hdr_len); -extern int ieee80211_xmit(struct sk_buff *skb, +extern int rtl8192_ieee80211_xmit(struct sk_buff *skb, struct net_device *dev); extern void ieee80211_txb_free(struct ieee80211_txb *); diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_tx.c index 7294572b990..cba12b84be5 100644 --- a/drivers/staging/rtl8192su/ieee80211/ieee80211_tx.c +++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_tx.c @@ -618,7 +618,7 @@ void ieee80211_query_seqnum(struct ieee80211_device*ieee, struct sk_buff* skb, u } } -int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev) +int rtl8192_ieee80211_xmit(struct sk_buff *skb, struct net_device *dev) { #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)) struct ieee80211_device *ieee = netdev_priv(dev); @@ -943,5 +943,6 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev) return 1; } +EXPORT_SYMBOL(rtl8192_ieee80211_xmit); EXPORT_SYMBOL(ieee80211_txb_free); diff --git a/drivers/staging/rtl8192su/r8192U_core.c b/drivers/staging/rtl8192su/r8192U_core.c index 4ab250743e8..70f81a8f129 100644 --- a/drivers/staging/rtl8192su/r8192U_core.c +++ b/drivers/staging/rtl8192su/r8192U_core.c @@ -12142,7 +12142,7 @@ static const struct net_device_ops rtl8192_netdev_ops = { .ndo_set_mac_address = r8192_set_mac_adr, .ndo_validate_addr = eth_validate_addr, .ndo_change_mtu = eth_change_mtu, - .ndo_start_xmit = ieee80211_xmit, + .ndo_start_xmit = rtl8192_ieee80211_xmit, }; #if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0) -- cgit v1.2.3 From 5fb4d2525b6dcffbb8bc26a7dfc7ed17ad323a06 Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Fri, 7 Aug 2009 16:12:03 -0700 Subject: staging: add dependencies on PCI for drivers that require it This patch adds PCI dependencies to staging drivers that require it. Signed-off-by: Jeff Mahoney Signed-off-by: Greg Kroah-Hartman --- drivers/staging/b3dfg/Kconfig | 1 + drivers/staging/heci/Kconfig | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/staging/b3dfg/Kconfig b/drivers/staging/b3dfg/Kconfig index 524231047de..9e6573cf97d 100644 --- a/drivers/staging/b3dfg/Kconfig +++ b/drivers/staging/b3dfg/Kconfig @@ -1,5 +1,6 @@ config B3DFG tristate "Brontes 3d Frame Framegrabber" + depends on PCI default n ---help--- This driver provides support for the Brontes 3d Framegrabber diff --git a/drivers/staging/heci/Kconfig b/drivers/staging/heci/Kconfig index ae8d588d3a2..c7206f8bcd9 100644 --- a/drivers/staging/heci/Kconfig +++ b/drivers/staging/heci/Kconfig @@ -1,5 +1,6 @@ config HECI tristate "Intel Management Engine Interface (MEI) Support" + depends on PCI ---help--- The Intel Management Engine Interface (Intel MEI) driver allows applications to access the Active Management Technology -- cgit v1.2.3 From 749d00dbf154fc2f9ac59df669205039de0d5b45 Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Fri, 7 Aug 2009 21:00:10 +0200 Subject: Staging: rspiusb: Fix buffer overflow usb_buffer_map_sg() may return -1. This will result in a read from pdx->PixelUrb[frameInfo][-1] Signed-off-by: Roel Kluin Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rspiusb/rspiusb.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/staging/rspiusb/rspiusb.c b/drivers/staging/rspiusb/rspiusb.c index 2f8155c1968..04e2f92c0f6 100644 --- a/drivers/staging/rspiusb/rspiusb.c +++ b/drivers/staging/rspiusb/rspiusb.c @@ -716,6 +716,8 @@ static int MapUserBuffer(struct ioctl_struct *io, struct device_extension *pdx) pdx->PixelUrb[frameInfo][i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP | URB_NO_INTERRUPT; } + if (i == 0) + return -EINVAL; /* only interrupt when last URB completes */ pdx->PixelUrb[frameInfo][--i]->transfer_flags &= ~URB_NO_INTERRUPT; pdx->pendedPixelUrbs[frameInfo] = -- cgit v1.2.3 From 087d7e56deffb611a098e7e257388a41edbeef1f Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 4 Aug 2009 08:59:59 -0700 Subject: x86: Fix MSI-X initialization by using online_mask for x2apic target_cpus found a system where x2apic reports an MSI-X irq initialization failure: [ 302.859446] igbvf 0000:81:10.4: enabling device (0000 -> 0002) [ 302.874369] igbvf 0000:81:10.4: using 64bit DMA mask [ 302.879023] igbvf 0000:81:10.4: using 64bit consistent DMA mask [ 302.894386] igbvf 0000:81:10.4: enabling bus mastering [ 302.898171] igbvf 0000:81:10.4: setting latency timer to 64 [ 302.914050] reserve_memtype added 0xefb08000-0xefb0c000, track uncached-minus, req uncached-minus, ret uncached-minus [ 302.933839] reserve_memtype added 0xefb28000-0xefb29000, track uncached-minus, req uncached-minus, ret uncached-minus [ 302.940367] alloc irq_desc for 265 on node 4 [ 302.956874] alloc kstat_irqs on node 4 [ 302.959452] alloc irq_2_iommu on node 0 [ 302.974328] igbvf 0000:81:10.4: irq 265 for MSI/MSI-X [ 302.977778] alloc irq_desc for 266 on node 4 [ 302.980347] alloc kstat_irqs on node 4 [ 302.995312] free_memtype request 0xefb28000-0xefb29000 [ 302.998816] igbvf 0000:81:10.4: Failed to initialize MSI-X interrupts. ... it turns out that when trying to enable MSI-X, __assign_irq_vector(new, cfg_new, apic->target_cpus()) can not get vector because for x2apic target-cpus returns cpumask_of(0) Update that to online_mask like xapic. Signed-off-by: Yinghai Lu Acked-by: Suresh Siddha LKML-Reference: <4A785AFF.3050902@kernel.org> Signed-off-by: Ingo Molnar --- arch/x86/kernel/apic/x2apic_cluster.c | 8 +++++--- arch/x86/kernel/apic/x2apic_phys.c | 8 +++++--- 2 files changed, 10 insertions(+), 6 deletions(-) diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c index 2ed4e2bb3b3..a5371ec3677 100644 --- a/arch/x86/kernel/apic/x2apic_cluster.c +++ b/arch/x86/kernel/apic/x2apic_cluster.c @@ -17,11 +17,13 @@ static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id) return x2apic_enabled(); } -/* Start with all IRQs pointing to boot CPU. IRQ balancing will shift them. */ - +/* + * need to use more than cpu 0, because we need more vectors when + * MSI-X are used. + */ static const struct cpumask *x2apic_target_cpus(void) { - return cpumask_of(0); + return cpu_online_mask; } /* diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c index 0b631c6a2e0..a8989aadc99 100644 --- a/arch/x86/kernel/apic/x2apic_phys.c +++ b/arch/x86/kernel/apic/x2apic_phys.c @@ -27,11 +27,13 @@ static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id) return 0; } -/* Start with all IRQs pointing to boot CPU. IRQ balancing will shift them. */ - +/* + * need to use more than cpu 0, because we need more vectors when + * MSI-X are used. + */ static const struct cpumask *x2apic_target_cpus(void) { - return cpumask_of(0); + return cpu_online_mask; } static void x2apic_vector_allocation_domain(int cpu, struct cpumask *retmask) -- cgit v1.2.3 From 498cdbfbcf98e0d2c90a26e6a02a82f043876e48 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ozan=20=C3=87a=C4=9Flayan?= Date: Tue, 4 Aug 2009 19:39:31 +0300 Subject: x86: Add quirk to make Apple MacBookPro5,1 use reboot=pci MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit MacBookPro5,1 is not able to reboot unless reboot=pci is set. This patch forces it through a DMI quirk specific to this device. Signed-off-by: Ozan Çağlayan LKML-Reference: <1249403971-6543-1-git-send-email-ozan@pardus.org.tr> Signed-off-by: Ingo Molnar --- arch/x86/kernel/reboot.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c index 834c9da8bf9..9eb89760370 100644 --- a/arch/x86/kernel/reboot.c +++ b/arch/x86/kernel/reboot.c @@ -405,7 +405,7 @@ EXPORT_SYMBOL(machine_real_restart); #endif /* CONFIG_X86_32 */ /* - * Apple MacBook5,2 (2009 MacBook) needs reboot=p + * Some Apple MacBook and MacBookPro's needs reboot=p to be able to reboot */ static int __init set_pci_reboot(const struct dmi_system_id *d) { @@ -426,6 +426,14 @@ static struct dmi_system_id __initdata pci_reboot_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "MacBook5,2"), }, }, + { /* Handle problems with rebooting on Apple MacBookPro5,1 */ + .callback = set_pci_reboot, + .ident = "Apple MacBookPro5,1", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro5,1"), + }, + }, { } }; -- cgit v1.2.3 From 96b2de313b1e0e02aea80ee47df6a2b5cbdf8e13 Mon Sep 17 00:00:00 2001 From: Tom Zanussi Date: Sat, 8 Aug 2009 10:49:09 -0500 Subject: tracing/filters: Don't use pred on alloc failure Dan Carpenter sent me a fix to prevent pred from being used if it couldn't be allocated. I noticed the same problem also existed for the create_pred() case and added a fix for that. Reported-by: Dan Carpenter Signed-off-by: Tom Zanussi Cc: Steven Rostedt Cc: Frederic Weisbecker Cc: Li Zefan LKML-Reference: <1249746549.6453.29.camel@tropicana> Signed-off-by: Ingo Molnar --- kernel/trace/trace_events_filter.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c index 936c621bbf4..1557148be34 100644 --- a/kernel/trace/trace_events_filter.c +++ b/kernel/trace/trace_events_filter.c @@ -1029,6 +1029,8 @@ static int replace_preds(struct event_subsystem *system, if (elt->op == OP_AND || elt->op == OP_OR) { pred = create_logical_pred(elt->op); + if (!pred) + return -ENOMEM; if (call) { err = filter_add_pred(ps, call, pred); filter_free_pred(pred); @@ -1048,6 +1050,8 @@ static int replace_preds(struct event_subsystem *system, } pred = create_pred(elt->op, operand1, operand2); + if (!pred) + return -ENOMEM; if (call) { err = filter_add_pred(ps, call, pred); filter_free_pred(pred); -- cgit v1.2.3 From 26528e773ecc74fb1b61b7275f86f761cbb340ec Mon Sep 17 00:00:00 2001 From: Tom Zanussi Date: Sat, 8 Aug 2009 10:49:53 -0500 Subject: tracing/filters: Always free pred on filter_add_subsystem_pred() failure If filter_add_subsystem_pred() fails due to ENOSPC or ENOMEM, the pred doesn't get freed, while as a side effect it does for other errors. Make it so the caller always frees the pred for any error. Signed-off-by: Tom Zanussi Cc: Steven Rostedt Cc: Frederic Weisbecker Cc: Li Zefan LKML-Reference: <1249746593.6453.32.camel@tropicana> Signed-off-by: Ingo Molnar --- kernel/trace/trace_events_filter.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c index 1557148be34..f32dc9d1ea7 100644 --- a/kernel/trace/trace_events_filter.c +++ b/kernel/trace/trace_events_filter.c @@ -624,9 +624,6 @@ static int filter_add_subsystem_pred(struct filter_parse_state *ps, return -ENOSPC; } - filter->preds[filter->n_preds] = pred; - filter->n_preds++; - list_for_each_entry(call, &ftrace_events, list) { if (!call->define_fields) @@ -643,6 +640,9 @@ static int filter_add_subsystem_pred(struct filter_parse_state *ps, } replace_filter_string(call->filter, filter_string); } + + filter->preds[filter->n_preds] = pred; + filter->n_preds++; out: return err; } @@ -1034,9 +1034,12 @@ static int replace_preds(struct event_subsystem *system, if (call) { err = filter_add_pred(ps, call, pred); filter_free_pred(pred); - } else + } else { err = filter_add_subsystem_pred(ps, system, pred, filter_string); + if (err) + filter_free_pred(pred); + } if (err) return err; @@ -1055,9 +1058,12 @@ static int replace_preds(struct event_subsystem *system, if (call) { err = filter_add_pred(ps, call, pred); filter_free_pred(pred); - } else + } else { err = filter_add_subsystem_pred(ps, system, pred, filter_string); + if (err) + filter_free_pred(pred); + } if (err) return err; -- cgit v1.2.3 From 17d42c1c497aa54952b9e58c1502a46f0df40315 Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Thu, 6 Aug 2009 16:03:30 -0700 Subject: posix_cpu_timers_exit_group(): Do not use thread_group_cputimer() When the process exits we don't have to run new cputimer nor use running one (as it not accounts when tsk->exit_state != 0) to get process CPU times. As there is only one thread we can just use CPU times fields from task and signal structs. Signed-off-by: Stanislaw Gruszka Cc: Peter Zijlstra Cc: Roland McGrath Cc: Vitaly Mayatskikh Signed-off-by: Andrew Morton Signed-off-by: Ingo Molnar --- kernel/posix-cpu-timers.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c index bece7c0b67b..e33a21cb940 100644 --- a/kernel/posix-cpu-timers.c +++ b/kernel/posix-cpu-timers.c @@ -521,11 +521,12 @@ void posix_cpu_timers_exit(struct task_struct *tsk) } void posix_cpu_timers_exit_group(struct task_struct *tsk) { - struct task_cputime cputime; + struct signal_struct *const sig = tsk->signal; - thread_group_cputimer(tsk, &cputime); cleanup_timers(tsk->signal->cpu_timers, - cputime.utime, cputime.stime, cputime.sum_exec_runtime); + cputime_add(tsk->utime, sig->utime), + cputime_add(tsk->stime, sig->stime), + tsk->se.sum_exec_runtime + sig->sum_sched_runtime); } static void clear_dead_task(struct k_itimer *timer, union cpu_time_count now) -- cgit v1.2.3 From 38d5487db7f289be1d56ac7df704ee49ed3213b9 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Mon, 20 Jul 2009 14:49:17 -0700 Subject: drm: When adding probed modes, preserve duplicate mode types The code which takes probed modes and adds them to a connector eliminates duplicate modes by comparing them using drm_mode_equal. That function doesn't consider the type bits, which means that any modes which differ only in the type field will be lost. One of the bits in the mode->type field is the DRM_MODE_TYPE_PREFERRED bit. If the mode with that bit is lost, then higher level code will not know which mode to select, causing a random mode to be used instead. This patch simply merges the two mode type bits together; that seems reasonable to me, but perhaps only a subset of the bits should be used? None of these can be user defined as they all come from looking at just the hardware. Signed-off-by: Keith Packard Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_modes.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c index 54f492a488a..7914097b09c 100644 --- a/drivers/gpu/drm/drm_modes.c +++ b/drivers/gpu/drm/drm_modes.c @@ -566,6 +566,8 @@ void drm_mode_connector_list_update(struct drm_connector *connector) found_it = 1; /* if equal delete the probed mode */ mode->status = pmode->status; + /* Merge type bits together */ + mode->type |= pmode->type; list_del(&pmode->head); drm_mode_destroy(connector->dev, pmode); break; -- cgit v1.2.3 From 8d3457ec3198a569dd14dc9e3ae8b6163bcaa0b5 Mon Sep 17 00:00:00 2001 From: Paul Rolland Date: Sun, 9 Aug 2009 12:24:01 +1000 Subject: drm: silence pointless vblank warning. Some applications/hardware combinations are triggering the message "failed to acquire vblank counter" to be issued up to 20 times a second, which makes it both useless and dangerous, as this may hide other important messages. This changes makes it only appear when people are debugging. Signed-off-by: Paul Rolland Reviewed-by: Jesse Barnes Lost-twice-by: Dave Airlie Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_irq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index b4a3dbcebe9..f85aaf21e78 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -566,7 +566,7 @@ int drm_wait_vblank(struct drm_device *dev, void *data, ret = drm_vblank_get(dev, crtc); if (ret) { - DRM_ERROR("failed to acquire vblank counter, %d\n", ret); + DRM_DEBUG("failed to acquire vblank counter, %d\n", ret); return ret; } seq = drm_vblank_count(dev, crtc); -- cgit v1.2.3 From 6cb504c29b1338925c83e4430e42a51eaa43781e Mon Sep 17 00:00:00 2001 From: Frans Pop Date: Sun, 9 Aug 2009 12:25:29 +1000 Subject: drm/i915: silence vblank warnings these errors are pretty pointless Reviewed-by: Jesse Barnes Signed-off-by: Dave Airlie --- drivers/gpu/drm/i915/i915_irq.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 83aee80e77a..7ebc84c2881 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -190,7 +190,7 @@ u32 i915_get_vblank_counter(struct drm_device *dev, int pipe) low_frame = pipe ? PIPEBFRAMEPIXEL : PIPEAFRAMEPIXEL; if (!i915_pipe_enabled(dev, pipe)) { - DRM_ERROR("trying to get vblank count for disabled pipe %d\n", pipe); + DRM_DEBUG("trying to get vblank count for disabled pipe %d\n", pipe); return 0; } @@ -219,7 +219,7 @@ u32 gm45_get_vblank_counter(struct drm_device *dev, int pipe) int reg = pipe ? PIPEB_FRMCOUNT_GM45 : PIPEA_FRMCOUNT_GM45; if (!i915_pipe_enabled(dev, pipe)) { - DRM_ERROR("trying to get vblank count for disabled pipe %d\n", pipe); + DRM_DEBUG("trying to get vblank count for disabled pipe %d\n", pipe); return 0; } -- cgit v1.2.3 From fdb8a42742ac95606668f73481dfb2f760658fdd Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Thu, 6 Aug 2009 15:58:13 -0700 Subject: x86: fix buffer overflow in efi_init() If the vendor name (from c16) can be longer than 100 bytes (or missing a terminating null), then the null is written past the end of vendor[]. Found with Parfait, http://research.sun.com/projects/parfait/ Signed-off-by: Roel Kluin Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: H. Peter Anvin Cc: Huang Ying --- arch/x86/kernel/efi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c index 19ccf6d0dcc..fe26ba3e345 100644 --- a/arch/x86/kernel/efi.c +++ b/arch/x86/kernel/efi.c @@ -354,7 +354,7 @@ void __init efi_init(void) */ c16 = tmp = early_ioremap(efi.systab->fw_vendor, 2); if (c16) { - for (i = 0; i < sizeof(vendor) && *c16; ++i) + for (i = 0; i < sizeof(vendor) - 1 && *c16; ++i) vendor[i] = *c16++; vendor[i] = '\0'; } else -- cgit v1.2.3 From b4a2f5e723e4f7df46731106faf9e2405673c073 Mon Sep 17 00:00:00 2001 From: Gleb Natapov Date: Sun, 5 Jul 2009 18:48:11 +0300 Subject: KVM: Avoid redelivery of edge interrupt before next edge The check for an edge is broken in current ioapic code. ioapic->irr is cleared on each edge interrupt by ioapic_service() and this makes old_irr != ioapic->irr condition in kvm_ioapic_set_irq() to be always true. The patch fixes the code to properly recognise edge. Some HW emulation calls set_irq() without level change. If each such call is propagated to an OS it may confuse a device driver. This is the case with keyboard device emulation and Windows XP x64 installer on SMP VM. Each keystroke produce two interrupts (down/up) one interrupt is submitted to CPU0 and another to CPU1. This confuses Windows somehow and it ignores keystrokes. Signed-off-by: Gleb Natapov Signed-off-by: Avi Kivity --- virt/kvm/ioapic.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c index 1eddae94bab..1150c6d5c7b 100644 --- a/virt/kvm/ioapic.c +++ b/virt/kvm/ioapic.c @@ -95,8 +95,6 @@ static int ioapic_service(struct kvm_ioapic *ioapic, unsigned int idx) if (injected && pent->fields.trig_mode == IOAPIC_LEVEL_TRIG) pent->fields.remote_irr = 1; } - if (!pent->fields.trig_mode) - ioapic->irr &= ~(1 << idx); return injected; } @@ -136,7 +134,8 @@ static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val) mask_after = ioapic->redirtbl[index].fields.mask; if (mask_before != mask_after) kvm_fire_mask_notifiers(ioapic->kvm, index, mask_after); - if (ioapic->irr & (1 << index)) + if (ioapic->redirtbl[index].fields.trig_mode == IOAPIC_LEVEL_TRIG + && ioapic->irr & (1 << index)) ioapic_service(ioapic, index); break; } @@ -184,9 +183,10 @@ int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level) if (!level) ioapic->irr &= ~mask; else { + int edge = (entry.fields.trig_mode == IOAPIC_EDGE_TRIG); ioapic->irr |= mask; - if ((!entry.fields.trig_mode && old_irr != ioapic->irr) - || !entry.fields.remote_irr) + if ((edge && old_irr != ioapic->irr) || + (!edge && !entry.fields.remote_irr)) ret = ioapic_service(ioapic, irq); } } -- cgit v1.2.3 From 3a6593050fbd8bbcaed3a44d01c31d907315c86c Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Tue, 21 Jul 2009 17:34:57 +0200 Subject: perf_counter, ftrace: Fix perf_counter integration Adds possible second part to the assign argument of TP_EVENT(). TP_perf_assign( __perf_count(foo); __perf_addr(bar); ) Which, when specified make the swcounter increment with @foo instead of the usual 1, and report @bar for PERF_SAMPLE_ADDR (data address associated with the event) when this triggers a counter overflow. Signed-off-by: Peter Zijlstra Acked-by: Steven Rostedt Cc: Frederic Weisbecker Cc: Jason Baron Cc: Paul Mackerras Signed-off-by: Ingo Molnar --- include/trace/ftrace.h | 110 ++++++++++++++++++++++++++++++++++++++----------- kernel/perf_counter.c | 6 +-- 2 files changed, 88 insertions(+), 28 deletions(-) diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h index 1867553c61e..fec71f8dbc4 100644 --- a/include/trace/ftrace.h +++ b/include/trace/ftrace.h @@ -144,6 +144,9 @@ #undef TP_fast_assign #define TP_fast_assign(args...) args +#undef TP_perf_assign +#define TP_perf_assign(args...) + #undef TRACE_EVENT #define TRACE_EVENT(call, proto, args, tstruct, func, print) \ static int \ @@ -345,6 +348,88 @@ static inline int ftrace_get_offsets_##call( \ #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) +#ifdef CONFIG_EVENT_PROFILE + +/* + * Generate the functions needed for tracepoint perf_counter support. + * + * static void ftrace_profile_(proto) + * { + * extern void perf_tpcounter_event(int, u64, u64); + * u64 __addr = 0, __count = 1; + * + * <-- here we expand the TP_perf_assign() macro + * + * perf_tpcounter_event(event_.id, __addr, __count); + * } + * + * static int ftrace_profile_enable_(struct ftrace_event_call *event_call) + * { + * int ret = 0; + * + * if (!atomic_inc_return(&event_call->profile_count)) + * ret = register_trace_(ftrace_profile_); + * + * return ret; + * } + * + * static void ftrace_profile_disable_(struct ftrace_event_call *event_call) + * { + * if (atomic_add_negative(-1, &event->call->profile_count)) + * unregister_trace_(ftrace_profile_); + * } + * + */ + +#undef TP_fast_assign +#define TP_fast_assign(args...) + +#undef TP_perf_assign +#define TP_perf_assign(args...) args + +#undef __perf_addr +#define __perf_addr(a) __addr = (a) + +#undef __perf_count +#define __perf_count(c) __count = (c) + +#undef TRACE_EVENT +#define TRACE_EVENT(call, proto, args, tstruct, assign, print) \ + \ +static void ftrace_profile_##call(proto) \ +{ \ + extern void perf_tpcounter_event(int, u64, u64); \ + u64 __addr = 0, __count = 1; \ + { assign; } \ + perf_tpcounter_event(event_##call.id, __addr, __count); \ +} \ + \ +static int ftrace_profile_enable_##call(struct ftrace_event_call *event_call) \ +{ \ + int ret = 0; \ + \ + if (!atomic_inc_return(&event_call->profile_count)) \ + ret = register_trace_##call(ftrace_profile_##call); \ + \ + return ret; \ +} \ + \ +static void ftrace_profile_disable_##call(struct ftrace_event_call *event_call)\ +{ \ + if (atomic_add_negative(-1, &event_call->profile_count)) \ + unregister_trace_##call(ftrace_profile_##call); \ +} + +#include TRACE_INCLUDE(TRACE_INCLUDE_FILE) + +#undef TP_fast_assign +#define TP_fast_assign(args...) args + +#undef TP_perf_assign +#define TP_perf_assign(args...) + +#endif + /* * Stage 4 of the trace events. * @@ -447,28 +532,6 @@ static inline int ftrace_get_offsets_##call( \ #define TP_FMT(fmt, args...) fmt "\n", ##args #ifdef CONFIG_EVENT_PROFILE -#define _TRACE_PROFILE(call, proto, args) \ -static void ftrace_profile_##call(proto) \ -{ \ - extern void perf_tpcounter_event(int); \ - perf_tpcounter_event(event_##call.id); \ -} \ - \ -static int ftrace_profile_enable_##call(struct ftrace_event_call *event_call) \ -{ \ - int ret = 0; \ - \ - if (!atomic_inc_return(&event_call->profile_count)) \ - ret = register_trace_##call(ftrace_profile_##call); \ - \ - return ret; \ -} \ - \ -static void ftrace_profile_disable_##call(struct ftrace_event_call *event_call)\ -{ \ - if (atomic_add_negative(-1, &event_call->profile_count)) \ - unregister_trace_##call(ftrace_profile_##call); \ -} #define _TRACE_PROFILE_INIT(call) \ .profile_count = ATOMIC_INIT(-1), \ @@ -476,7 +539,6 @@ static void ftrace_profile_disable_##call(struct ftrace_event_call *event_call)\ .profile_disable = ftrace_profile_disable_##call, #else -#define _TRACE_PROFILE(call, proto, args) #define _TRACE_PROFILE_INIT(call) #endif @@ -502,7 +564,6 @@ static void ftrace_profile_disable_##call(struct ftrace_event_call *event_call)\ #undef TRACE_EVENT #define TRACE_EVENT(call, proto, args, tstruct, assign, print) \ -_TRACE_PROFILE(call, PARAMS(proto), PARAMS(args)) \ \ static struct ftrace_event_call event_##call; \ \ @@ -586,6 +647,5 @@ __attribute__((section("_ftrace_events"))) event_##call = { \ #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) -#undef _TRACE_PROFILE #undef _TRACE_PROFILE_INIT diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 673c1aaf733..52eb4b68d34 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -3703,17 +3703,17 @@ static const struct pmu perf_ops_task_clock = { }; #ifdef CONFIG_EVENT_PROFILE -void perf_tpcounter_event(int event_id) +void perf_tpcounter_event(int event_id, u64 addr, u64 count) { struct perf_sample_data data = { .regs = get_irq_regs(), - .addr = 0, + .addr = addr, }; if (!data.regs) data.regs = task_pt_regs(current); - do_perf_swcounter_event(PERF_TYPE_TRACEPOINT, event_id, 1, 1, &data); + do_perf_swcounter_event(PERF_TYPE_TRACEPOINT, event_id, count, 1, &data); } EXPORT_SYMBOL_GPL(perf_tpcounter_event); -- cgit v1.2.3 From f413cdb80ce00ec1a4d0ab949b5d96c81cae7f75 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Fri, 7 Aug 2009 01:25:54 +0200 Subject: perf_counter: Fix/complete ftrace event records sampling This patch implements the kernel side support for ftrace event record sampling. A new counter sampling attribute is added: PERF_SAMPLE_TP_RECORD which requests ftrace events record sampling. In this case if a PERF_TYPE_TRACEPOINT counter is active and a tracepoint fires, we emit the tracepoint binary record to the perfcounter event buffer, as a sample. Result, after setting PERF_SAMPLE_TP_RECORD attribute from perf record: perf record -f -F 1 -a -e workqueue:workqueue_execution perf report -D 0x21e18 [0x48]: event: 9 . . ... raw event: size 72 bytes . 0000: 09 00 00 00 01 00 48 00 d0 c7 00 81 ff ff ff ff ......H........ . 0010: 0a 00 00 00 0a 00 00 00 21 00 00 00 00 00 00 00 ........!...... . 0020: 2b 00 01 02 0a 00 00 00 0a 00 00 00 65 76 65 6e +...........eve . 0030: 74 73 2f 31 00 00 00 00 00 00 00 00 0a 00 00 00 ts/1........... . 0040: e0 b1 31 81 ff ff ff ff ....... . 0x21e18 [0x48]: PERF_EVENT_SAMPLE (IP, 1): 10: 0xffffffff8100c7d0 period: 33 The raw ftrace binary record starts at offset 0020. Translation: struct trace_entry { type = 0x2b = 43; flags = 1; preempt_count = 2; pid = 0xa = 10; tgid = 0xa = 10; } thread_comm = "events/1" thread_pid = 0xa = 10; func = 0xffffffff8131b1e0 = flush_to_ldisc() What will come next? - Userspace support ('perf trace'), 'flight data recorder' mode for perf trace, etc. - The unconditional copy from the profiling callback brings some costs however if someone wants no such sampling to occur, and needs to be fixed in the future. For that we need to have an instant access to the perf counter attribute. This is a matter of a flag to add in the struct ftrace_event. - Take care of the events recursivity! Don't ever try to record a lock event for example, it seems some locking is used in the profiling fast path and lead to a tracing recursivity. That will be fixed using raw spinlock or recursivity protection. - [...] - Profit! :-) Signed-off-by: Frederic Weisbecker Cc: Li Zefan Cc: Tom Zanussi Cc: Arnaldo Carvalho de Melo Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Steven Rostedt Cc: Paul Mackerras Cc: Pekka Enberg Cc: Gabriel Munteanu Cc: Lai Jiangshan Signed-off-by: Ingo Molnar --- include/linux/ftrace_event.h | 4 +- include/linux/perf_counter.h | 9 ++- include/trace/ftrace.h | 130 ++++++++++++++++++++++++++++++++----------- kernel/perf_counter.c | 18 +++++- kernel/trace/trace.c | 1 + kernel/trace/trace.h | 4 -- tools/perf/builtin-record.c | 1 + 7 files changed, 126 insertions(+), 41 deletions(-) diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h index d7cd193c227..a81170de7f6 100644 --- a/include/linux/ftrace_event.h +++ b/include/linux/ftrace_event.h @@ -89,7 +89,9 @@ enum print_line_t { TRACE_TYPE_NO_CONSUME = 3 /* Handled but ask to not consume */ }; - +void tracing_generic_entry_update(struct trace_entry *entry, + unsigned long flags, + int pc); struct ring_buffer_event * trace_current_buffer_lock_reserve(int type, unsigned long len, unsigned long flags, int pc); diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h index e604e6ef72d..a67dd5c5b6d 100644 --- a/include/linux/perf_counter.h +++ b/include/linux/perf_counter.h @@ -121,8 +121,9 @@ enum perf_counter_sample_format { PERF_SAMPLE_CPU = 1U << 7, PERF_SAMPLE_PERIOD = 1U << 8, PERF_SAMPLE_STREAM_ID = 1U << 9, + PERF_SAMPLE_TP_RECORD = 1U << 10, - PERF_SAMPLE_MAX = 1U << 10, /* non-ABI */ + PERF_SAMPLE_MAX = 1U << 11, /* non-ABI */ }; /* @@ -413,6 +414,11 @@ struct perf_callchain_entry { __u64 ip[PERF_MAX_STACK_DEPTH]; }; +struct perf_tracepoint_record { + int size; + char *record; +}; + struct task_struct; /** @@ -681,6 +687,7 @@ struct perf_sample_data { struct pt_regs *regs; u64 addr; u64 period; + void *private; }; extern int perf_counter_overflow(struct perf_counter *counter, int nmi, diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h index fec71f8dbc4..7fb16d90e7b 100644 --- a/include/trace/ftrace.h +++ b/include/trace/ftrace.h @@ -353,15 +353,7 @@ static inline int ftrace_get_offsets_##call( \ /* * Generate the functions needed for tracepoint perf_counter support. * - * static void ftrace_profile_(proto) - * { - * extern void perf_tpcounter_event(int, u64, u64); - * u64 __addr = 0, __count = 1; - * - * <-- here we expand the TP_perf_assign() macro - * - * perf_tpcounter_event(event_.id, __addr, __count); - * } + * NOTE: The insertion profile callback (ftrace_profile_) is defined later * * static int ftrace_profile_enable_(struct ftrace_event_call *event_call) * { @@ -381,28 +373,10 @@ static inline int ftrace_get_offsets_##call( \ * */ -#undef TP_fast_assign -#define TP_fast_assign(args...) - -#undef TP_perf_assign -#define TP_perf_assign(args...) args - -#undef __perf_addr -#define __perf_addr(a) __addr = (a) - -#undef __perf_count -#define __perf_count(c) __count = (c) - #undef TRACE_EVENT #define TRACE_EVENT(call, proto, args, tstruct, assign, print) \ \ -static void ftrace_profile_##call(proto) \ -{ \ - extern void perf_tpcounter_event(int, u64, u64); \ - u64 __addr = 0, __count = 1; \ - { assign; } \ - perf_tpcounter_event(event_##call.id, __addr, __count); \ -} \ +static void ftrace_profile_##call(proto); \ \ static int ftrace_profile_enable_##call(struct ftrace_event_call *event_call) \ { \ @@ -422,12 +396,6 @@ static void ftrace_profile_disable_##call(struct ftrace_event_call *event_call)\ #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) -#undef TP_fast_assign -#define TP_fast_assign(args...) args - -#undef TP_perf_assign -#define TP_perf_assign(args...) - #endif /* @@ -647,5 +615,99 @@ __attribute__((section("_ftrace_events"))) event_##call = { \ #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) +/* + * Define the insertion callback to profile events + * + * The job is very similar to ftrace_raw_event_ except that we don't + * insert in the ring buffer but in a perf counter. + * + * static void ftrace_profile_(proto) + * { + * struct ftrace_data_offsets_ __maybe_unused __data_offsets; + * struct ftrace_event_call *event_call = &event_; + * extern void perf_tpcounter_event(int, u64, u64, void *, int); + * struct ftrace_raw_##call *entry; + * u64 __addr = 0, __count = 1; + * unsigned long irq_flags; + * int __entry_size; + * int __data_size; + * int pc; + * + * local_save_flags(irq_flags); + * pc = preempt_count(); + * + * __data_size = ftrace_get_offsets_(&__data_offsets, args); + * __entry_size = __data_size + sizeof(*entry); + * + * do { + * char raw_data[__entry_size]; <- allocate our sample in the stack + * struct trace_entry *ent; + * + * entry = (struct ftrace_raw_ *)raw_data; + * ent = &entry->ent; + * tracing_generic_entry_update(ent, irq_flags, pc); + * ent->type = event_call->id; + * + * <- do some jobs with dynamic arrays + * + * <- affect our values + * + * perf_tpcounter_event(event_call->id, __addr, __count, entry, + * __entry_size); <- submit them to perf counter + * } while (0); + * + * } + */ + +#ifdef CONFIG_EVENT_PROFILE + +#undef __perf_addr +#define __perf_addr(a) __addr = (a) + +#undef __perf_count +#define __perf_count(c) __count = (c) + +#undef TRACE_EVENT +#define TRACE_EVENT(call, proto, args, tstruct, assign, print) \ +static void ftrace_profile_##call(proto) \ +{ \ + struct ftrace_data_offsets_##call __maybe_unused __data_offsets;\ + struct ftrace_event_call *event_call = &event_##call; \ + extern void perf_tpcounter_event(int, u64, u64, void *, int); \ + struct ftrace_raw_##call *entry; \ + u64 __addr = 0, __count = 1; \ + unsigned long irq_flags; \ + int __entry_size; \ + int __data_size; \ + int pc; \ + \ + local_save_flags(irq_flags); \ + pc = preempt_count(); \ + \ + __data_size = ftrace_get_offsets_##call(&__data_offsets, args); \ + __entry_size = ALIGN(__data_size + sizeof(*entry), sizeof(u64));\ + \ + do { \ + char raw_data[__entry_size]; \ + struct trace_entry *ent; \ + \ + entry = (struct ftrace_raw_##call *)raw_data; \ + ent = &entry->ent; \ + tracing_generic_entry_update(ent, irq_flags, pc); \ + ent->type = event_call->id; \ + \ + tstruct \ + \ + { assign; } \ + \ + perf_tpcounter_event(event_call->id, __addr, __count, entry,\ + __entry_size); \ + } while (0); \ + \ +} + +#include TRACE_INCLUDE(TRACE_INCLUDE_FILE) +#endif /* CONFIG_EVENT_PROFILE */ + #undef _TRACE_PROFILE_INIT diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 52eb4b68d34..868102172aa 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -2646,6 +2646,7 @@ static void perf_counter_output(struct perf_counter *counter, int nmi, u64 counter; } group_entry; struct perf_callchain_entry *callchain = NULL; + struct perf_tracepoint_record *tp; int callchain_size = 0; u64 time; struct { @@ -2714,6 +2715,11 @@ static void perf_counter_output(struct perf_counter *counter, int nmi, header.size += sizeof(u64); } + if (sample_type & PERF_SAMPLE_TP_RECORD) { + tp = data->private; + header.size += tp->size; + } + ret = perf_output_begin(&handle, counter, header.size, nmi, 1); if (ret) return; @@ -2777,6 +2783,9 @@ static void perf_counter_output(struct perf_counter *counter, int nmi, } } + if (sample_type & PERF_SAMPLE_TP_RECORD) + perf_output_copy(&handle, tp->record, tp->size); + perf_output_end(&handle); } @@ -3703,11 +3712,18 @@ static const struct pmu perf_ops_task_clock = { }; #ifdef CONFIG_EVENT_PROFILE -void perf_tpcounter_event(int event_id, u64 addr, u64 count) +void perf_tpcounter_event(int event_id, u64 addr, u64 count, void *record, + int entry_size) { + struct perf_tracepoint_record tp = { + .size = entry_size, + .record = record, + }; + struct perf_sample_data data = { .regs = get_irq_regs(), .addr = addr, + .private = &tp, }; if (!data.regs) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 8930e39b9d8..c22b40f8f57 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -848,6 +848,7 @@ tracing_generic_entry_update(struct trace_entry *entry, unsigned long flags, ((pc & SOFTIRQ_MASK) ? TRACE_FLAG_SOFTIRQ : 0) | (need_resched() ? TRACE_FLAG_NEED_RESCHED : 0); } +EXPORT_SYMBOL_GPL(tracing_generic_entry_update); struct ring_buffer_event *trace_buffer_lock_reserve(struct trace_array *tr, int type, diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 3548ae5cc78..8b9f4f6e955 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -438,10 +438,6 @@ struct trace_entry *tracing_get_trace_entry(struct trace_array *tr, struct trace_entry *trace_find_next_entry(struct trace_iterator *iter, int *ent_cpu, u64 *ent_ts); -void tracing_generic_entry_update(struct trace_entry *entry, - unsigned long flags, - int pc); - void default_wait_pipe(struct trace_iterator *iter); void poll_wait_pipe(struct trace_iterator *iter); diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 6da09928130..90c98082af1 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -412,6 +412,7 @@ static void create_counter(int counter, int cpu, pid_t pid) if (call_graph) attr->sample_type |= PERF_SAMPLE_CALLCHAIN; + attr->mmap = track; attr->comm = track; attr->inherit = (cpu < 0) && inherit; -- cgit v1.2.3