diff options
-rw-r--r-- | arch/s390/kernel/head31.S | 12 | ||||
-rw-r--r-- | arch/s390/kernel/head64.S | 12 | ||||
-rw-r--r-- | arch/s390/kernel/setup.c | 2 | ||||
-rw-r--r-- | arch/s390/kernel/smp.c | 5 | ||||
-rw-r--r-- | arch/s390/lib/uaccess_pt.c | 3 | ||||
-rw-r--r-- | arch/s390/lib/uaccess_std.c | 3 | ||||
-rw-r--r-- | drivers/pci/quirks.c | 14 | ||||
-rw-r--r-- | drivers/s390/char/vmcp.c | 2 | ||||
-rw-r--r-- | drivers/s390/cio/cio.c | 12 | ||||
-rw-r--r-- | include/asm-s390/futex.h | 4 |
10 files changed, 46 insertions, 23 deletions
diff --git a/arch/s390/kernel/head31.S b/arch/s390/kernel/head31.S index 4388b3309e0..eca507050e4 100644 --- a/arch/s390/kernel/head31.S +++ b/arch/s390/kernel/head31.S @@ -164,11 +164,14 @@ startup_continue: srl %r7,28 clr %r6,%r7 # compare cc with last access code be .Lsame-.LPG1(%r13) - b .Lchkmem-.LPG1(%r13) + lhi %r8,0 # no program checks + b .Lsavchk-.LPG1(%r13) .Lsame: ar %r5,%r1 # add 128KB to end of chunk bno .Lloop-.LPG1(%r13) # r1 < 0x80000000 -> loop .Lchkmem: # > 2GB or tprot got a program check + lhi %r8,1 # set program check flag +.Lsavchk: clr %r4,%r5 # chunk size > 0? be .Lchkloop-.LPG1(%r13) st %r4,0(%r3) # store start address of chunk @@ -190,8 +193,15 @@ startup_continue: je .Ldonemem # if not, leave chi %r10,0 # do we have chunks left? je .Ldonemem + chi %r8,1 # program check ? + je .Lpgmchk + lr %r4,%r5 # potential new chunk + alr %r5,%r1 # add 128KB to end of chunk + j .Llpcnt +.Lpgmchk: alr %r5,%r1 # add 128KB to end of chunk lr %r4,%r5 # potential new chunk +.Llpcnt: clr %r5,%r9 # should we go on? jl .Lloop .Ldonemem: diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S index c526279e112..6ba3f4512dd 100644 --- a/arch/s390/kernel/head64.S +++ b/arch/s390/kernel/head64.S @@ -172,12 +172,15 @@ startup_continue: srl %r7,28 clr %r6,%r7 # compare cc with last access code je .Lsame - j .Lchkmem + lghi %r8,0 # no program checks + j .Lsavchk .Lsame: algr %r5,%r1 # add 128KB to end of chunk # no need to check here, brc 12,.Lloop # this is the same chunk .Lchkmem: # > 16EB or tprot got a program check + lghi %r8,1 # set program check flag +.Lsavchk: clgr %r4,%r5 # chunk size > 0? je .Lchkloop stg %r4,0(%r3) # store start address of chunk @@ -204,8 +207,15 @@ startup_continue: chi %r10, 0 # do we have chunks left? je .Ldonemem .Lhsaskip: + chi %r8,1 # program check ? + je .Lpgmchk + lgr %r4,%r5 # potential new chunk + algr %r5,%r1 # add 128KB to end of chunk + j .Llpcnt +.Lpgmchk: algr %r5,%r1 # add 128KB to end of chunk lgr %r4,%r5 # potential new chunk +.Llpcnt: clgr %r5,%r9 # should we go on? jl .Lloop .Ldonemem: diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 49ef206ec88..5d8ee3baac1 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -476,7 +476,7 @@ static void __init setup_memory_end(void) int i; memory_size = real_size = 0; - max_phys = VMALLOC_END - VMALLOC_MIN_SIZE; + max_phys = VMALLOC_END_INIT - VMALLOC_MIN_SIZE; memory_end &= PAGE_MASK; max_mem = memory_end ? min(max_phys, memory_end) : max_phys; diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 19090f7d4f5..c0cd255fddb 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -794,7 +794,10 @@ static int __init topology_init(void) int ret; for_each_possible_cpu(cpu) { - ret = register_cpu(&per_cpu(cpu_devices, cpu), cpu); + struct cpu *c = &per_cpu(cpu_devices, cpu); + + c->hotpluggable = 1; + ret = register_cpu(c, cpu); if (ret) printk(KERN_WARNING "topology_init: register_cpu %d " "failed (%d)\n", cpu, ret); diff --git a/arch/s390/lib/uaccess_pt.c b/arch/s390/lib/uaccess_pt.c index 633249c3ba9..49c3e46b406 100644 --- a/arch/s390/lib/uaccess_pt.c +++ b/arch/s390/lib/uaccess_pt.c @@ -8,6 +8,7 @@ */ #include <linux/errno.h> +#include <linux/hardirq.h> #include <linux/mm.h> #include <asm/uaccess.h> #include <asm/futex.h> @@ -18,6 +19,8 @@ static inline int __handle_fault(struct mm_struct *mm, unsigned long address, struct vm_area_struct *vma; int ret = -EFAULT; + if (in_atomic()) + return ret; down_read(&mm->mmap_sem); vma = find_vma(mm, address); if (unlikely(!vma)) diff --git a/arch/s390/lib/uaccess_std.c b/arch/s390/lib/uaccess_std.c index bbaca66fa29..56a0214e992 100644 --- a/arch/s390/lib/uaccess_std.c +++ b/arch/s390/lib/uaccess_std.c @@ -258,8 +258,6 @@ int futex_atomic_op(int op, int __user *uaddr, int oparg, int *old) { int oldval = 0, newval, ret; - pagefault_disable(); - switch (op) { case FUTEX_OP_SET: __futex_atomic_op("lr %2,%5\n", @@ -284,7 +282,6 @@ int futex_atomic_op(int op, int __user *uaddr, int oparg, int *old) default: ret = -ENOSYS; } - pagefault_enable(); *old = oldval; return ret; } diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 8f0322d6f3b..0535efc4f18 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1117,10 +1117,11 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_h static void quirk_sis_96x_smbus(struct pci_dev *dev) { u8 val = 0; - printk(KERN_INFO "Enabling SiS 96x SMBus.\n"); - pci_read_config_byte(dev, 0x77, &val); - pci_write_config_byte(dev, 0x77, val & ~0x10); pci_read_config_byte(dev, 0x77, &val); + if (val & 0x10) { + printk(KERN_INFO "Enabling SiS 96x SMBus.\n"); + pci_write_config_byte(dev, 0x77, val & ~0x10); + } } /* @@ -1152,11 +1153,12 @@ static void quirk_sis_503(struct pci_dev *dev) printk(KERN_WARNING "Uncovering SIS%x that hid as a SIS503 (compatible=%d)\n", devid, sis_96x_compatible); /* - * Ok, it now shows up as a 96x.. The 96x quirks are after - * the 503 quirk in the quirk table, so they'll automatically - * run and enable things like the SMBus device + * Ok, it now shows up as a 96x.. run the 96x quirk by + * hand in case it has already been processed. + * (depends on link order, which is apparently not guaranteed) */ dev->device = devid; + quirk_sis_96x_smbus(dev); } static void __init quirk_sis_96x_compatible(struct pci_dev *dev) diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c index 1678b6c757e..a420cd09904 100644 --- a/drivers/s390/char/vmcp.c +++ b/drivers/s390/char/vmcp.c @@ -117,7 +117,7 @@ vmcp_write(struct file *file, const char __user * buff, size_t count, return -ENOMEM; } debug_text_event(vmcp_debug, 1, cmd); - session->resp_size = __cpcmd(cmd, session->response, + session->resp_size = cpcmd(cmd, session->response, session->bufsize, &session->resp_code); up(&session->mutex); diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index b471ac4a1bf..ae1bf231d08 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -880,19 +880,15 @@ static void cio_reset_pgm_check_handler(void) static int stsch_reset(struct subchannel_id schid, volatile struct schib *addr) { int rc; - register struct subchannel_id reg1 asm ("1") = schid; pgm_check_occured = 0; s390_reset_pgm_handler = cio_reset_pgm_check_handler; + rc = stsch(schid, addr); + s390_reset_pgm_handler = NULL; - asm volatile( - " stsch 0(%2)\n" - " ipm %0\n" - " srl %0,28" - : "=d" (rc) - : "d" (reg1), "a" (addr), "m" (*addr) : "memory", "cc"); + /* The program check handler could have changed pgm_check_occured */ + barrier(); - s390_reset_pgm_handler = NULL; if (pgm_check_occured) return -EIO; else diff --git a/include/asm-s390/futex.h b/include/asm-s390/futex.h index 5e261e1de67..5c5d02de49e 100644 --- a/include/asm-s390/futex.h +++ b/include/asm-s390/futex.h @@ -4,8 +4,8 @@ #ifdef __KERNEL__ #include <linux/futex.h> +#include <linux/uaccess.h> #include <asm/errno.h> -#include <asm/uaccess.h> static inline int futex_atomic_op_inuser (int encoded_op, int __user *uaddr) { @@ -21,7 +21,9 @@ static inline int futex_atomic_op_inuser (int encoded_op, int __user *uaddr) if (! access_ok (VERIFY_WRITE, uaddr, sizeof(int))) return -EFAULT; + pagefault_disable(); ret = uaccess.futex_atomic_op(op, uaddr, oparg, &oldval); + pagefault_enable(); if (!ret) { switch (cmp) { |