aboutsummaryrefslogtreecommitdiff
path: root/arch
AgeCommit message (Collapse)Author
2006-06-30Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC64]: Kill sun4v virtual device layer. [SERIAL] sunhv: Convert to of_driver layer. [SPARC64]: Mask out top 8-bits in physical address when building resources. [SERIAL] sunsu: Missing return statement in su_probe().
2006-06-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivialLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: Remove obsolete #include <linux/config.h> remove obsolete swsusp_encrypt arch/arm26/Kconfig typos Documentation/IPMI typos Kconfig: Typos in net/sched/Kconfig v9fs: do not include linux/version.h Documentation/DocBook/mtdnand.tmpl: typo fixes typo fixes: specfic -> specific typo fixes in Documentation/networking/pktgen.txt typo fixes: occuring -> occurring typo fixes: infomation -> information typo fixes: disadvantadge -> disadvantage typo fixes: aquire -> acquire typo fixes: mecanism -> mechanism typo fixes: bandwith -> bandwidth fix a typo in the RTC_CLASS help text smb is no longer maintained Manually merged trivial conflict in arch/um/kernel/vmlinux.lds.S
2006-06-30Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (25 commits) ACPI: Kconfig: ACPI_SRAT depends on ACPI ACPI: drivers/acpi/scan.c: make acpi_bus_type static ACPI: fixup memhotplug debug message ACPI: ACPICA 20060623 ACPI: C-States: only demote on current bus mastering activity ACPI: C-States: bm_activity improvements ACPI: C-States: accounting of sleep states ACPI: additional blacklist entry for ThinkPad R40e ACPI: restore comment justifying 'extra' P_LVLx access ACPI: fix battery on HP NX6125 ACPIPHP: prevent duplicate slot numbers when no _SUN ACPI: static-ize handle_hotplug_event_func() ACPIPHP: use ACPI dock driver ACPI: dock driver KEVENT: add new uevent for dock ACPI: asus_acpi_init: propagate correct return value [ACPI] Print error message if remove/install notify handler fails ACPI: delete tracing macros from drivers/acpi/*.c ACPI: HW P-state coordination support ACPI: un-export ACPI_ERROR() -- use printk(KERN_ERR...) ...
2006-06-30[SPARC64]: Kill sun4v virtual device layer.David S. Miller
Replace with a simple IRQ translater in the PROM device tree builder. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-30[SPARC64]: Mask out top 8-bits in physical address when building resources.David S. Miller
These top 8-bits are supposed to be ignored in the ranges and top-level reg properties on this platform. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-30ACPI: Kconfig: ACPI_SRAT depends on ACPIAndrew Morton
arch/i386/kernel/srat.c won't compile without CONFIG_ACPI. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-30[PATCH] uml: fix biarch gcc build on x86_64Jeff Dike
I run an x86_64 kernel with i386 userspace (Ubuntu Dapper) and decided to try out UML today. I found that UML wasn't quite aware of biarch compilers (which Ubuntu i386 ships). A fix similar to what was done for x86_64 should probably be committed (see http://marc.theaimsgroup.com/?l=linux-kernel&m=113425940204010&w=2). Without the FLAGS changes, the build will fail at a number of places and without the LINK change, the final link will fail. Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] uml: remove stray fileJeff Dike
Forgot to remove arch/um/kernel/time.c when it was mostly moved to arch/um/os-Linux. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] uml: remove unneeded time definitionsJeff Dike
Remove um_time() and um_stime() syscalls since they are identical to system-wide ones. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] uml: add locking to xtime accessesJeff Dike
do_timer must be called with xtime_lock held. I'm not sure boot_timer_handler needs this, however I don't think it hurts: it simply disables irq and takes a spinlock. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] uml: unregister useless console when it's not neededJeff Dike
-mm in combination with an FC5 init started dying with 'stderr=1' because init didn't like the lack of /dev/console and exited. The problem was that the stderr console, which is intended to dump printk output to the terminal before the regular console is initialized, isn't a tty, and so can't make /dev/console operational. However, since it is registered first, the normal console, when it is registered, doesn't become the preferred console, and isn't attached to /dev/console. Thus, /dev/console is never operational. This patch makes the stderr console unregister itself in an initcall, which is late enough that the normal console is registered. When that happens, the normal console will become the preferred console and will be able to run /dev/console. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] uml: fix off-by-one bug in VM file creationJeff Dike
Fix an off-by-one bug in temp file creation. Seeking to the desired length and writing a byte resulted in the file being one byte longer than expected. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] uml: fix /proc/mounts parsing boundary conditionJeff Dike
When parsing /proc/mounts looking for a tmpfs mount on /dev/shm, if a string that we are looking for if split across reads, then it won't be recognized. Fix this by refilling the buffer whenever we advance the cursor. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] add smp_setup_processor_id()Andrew Morton
Presently, smp_processor_id() isn't necessarily set up until setup_arch(). But it's used in boot_cpu_init() and printk() and perhaps in other places, prior to setup_arch() being called. So provide a new smp_setup_processor_id() which is called before anything else, wire it up for Voyager (which boots on a CPU other than #0, and broke). Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] Light weight event countersChristoph Lameter
The remaining counters in page_state after the zoned VM counter patches have been applied are all just for show in /proc/vmstat. They have no essential function for the VM. We use a simple increment of per cpu variables. In order to avoid the most severe races we disable preempt. Preempt does not prevent the race between an increment and an interrupt handler incrementing the same statistics counter. However, that race is exceedingly rare, we may only loose one increment or so and there is no requirement (at least not in kernel) that the vm event counters have to be accurate. In the non preempt case this results in a simple increment for each counter. For many architectures this will be reduced by the compiler to a single instruction. This single instruction is atomic for i386 and x86_64. And therefore even the rare race condition in an interrupt is avoided for both architectures in most cases. The patchset also adds an off switch for embedded systems that allows a building of linux kernels without these counters. The implementation of these counters is through inline code that hopefully results in only a single instruction increment instruction being emitted (i386, x86_64) or in the increment being hidden though instruction concurrency (EPIC architectures such as ia64 can get that done). Benefits: - VM event counter operations usually reduce to a single inline instruction on i386 and x86_64. - No interrupt disable, only preempt disable for the preempt case. Preempt disable can also be avoided by moving the counter into a spinlock. - Handling is similar to zoned VM counters. - Simple and easily extendable. - Can be omitted to reduce memory use for embedded use. References: RFC http://marc.theaimsgroup.com/?l=linux-kernel&m=113512330605497&w=2 RFC http://marc.theaimsgroup.com/?l=linux-kernel&m=114988082814934&w=2 local_t http://marc.theaimsgroup.com/?l=linux-kernel&m=114991748606690&w=2 V2 http://marc.theaimsgroup.com/?t=115014808400007&r=1&w=2 V3 http://marc.theaimsgroup.com/?l=linux-kernel&m=115024767022346&w=2 V4 http://marc.theaimsgroup.com/?l=linux-kernel&m=115047968808926&w=2 Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] zoned vm counters: conversion of nr_writeback to per zone counterChristoph Lameter
Conversion of nr_writeback to per zone counter. This removes the last page_state counter from arch/i386/mm/pgtable.c so we drop the page_state from there. [akpm@osdl.org: bugfix] Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] zoned vm counters: conversion of nr_dirty to per zone counterChristoph Lameter
This makes nr_dirty a per zone counter. Looping over all processors is avoided during writeback state determination. The counter aggregation for nr_dirty had to be undone in the NFS layer since we summed up the page counts from multiple zones. Someone more familiar with NFS should probably review what I have done. [akpm@osdl.org: bugfix] Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] zoned vm counters: conversion of nr_pagetables to per zone counterChristoph Lameter
Conversion of nr_page_table_pages to a per zone counter [akpm@osdl.org: bugfix] Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] zoned vm counters: conversion of nr_slab to per zone counterChristoph Lameter
- Allows reclaim to access counter without looping over processor counts. - Allows accurate statistics on how many pages are used in a zone by the slab. This may become useful to balance slab allocations over various zones. [akpm@osdl.org: bugfix] Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] zoned vm counters: conversion of nr_pagecache to per zone counterChristoph Lameter
Currently a single atomic variable is used to establish the size of the page cache in the whole machine. The zoned VM counters have the same method of implementation as the nr_pagecache code but also allow the determination of the pagecache size per zone. Remove the special implementation for nr_pagecache and make it a zoned counter named NR_FILE_PAGES. Updates of the page cache counters are always performed with interrupts off. We can therefore use the __ variant here. Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] zoned vm counters: convert nr_mapped to per zone counterChristoph Lameter
nr_mapped is important because it allows a determination of how many pages of a zone are not mapped, which would allow a more efficient means of determining when we need to reclaim memory in a zone. We take the nr_mapped field out of the page state structure and define a new per zone counter named NR_FILE_MAPPED (the anonymous pages will be split off from NR_MAPPED in the next patch). We replace the use of nr_mapped in various kernel locations. This avoids the looping over all processors in try_to_free_pages(), writeback, reclaim (swap + zone reclaim). [akpm@osdl.org: bugfix] Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] zoned vm counters: basic ZVC (zoned vm counter) implementationChristoph Lameter
Per zone counter infrastructure The counters that we currently have for the VM are split per processor. The processor however has not much to do with the zone these pages belong to. We cannot tell f.e. how many ZONE_DMA pages are dirty. So we are blind to potentially inbalances in the usage of memory in various zones. F.e. in a NUMA system we cannot tell how many pages are dirty on a particular node. If we knew then we could put measures into the VM to balance the use of memory between different zones and different nodes in a NUMA system. For example it would be possible to limit the dirty pages per node so that fast local memory is kept available even if a process is dirtying huge amounts of pages. Another example is zone reclaim. We do not know how many unmapped pages exist per zone. So we just have to try to reclaim. If it is not working then we pause and try again later. It would be better if we knew when it makes sense to reclaim unmapped pages from a zone. This patchset allows the determination of the number of unmapped pages per zone. We can remove the zone reclaim interval with the counters introduced here. Futhermore the ability to have various usage statistics available will allow the development of new NUMA balancing algorithms that may be able to improve the decision making in the scheduler of when to move a process to another node and hopefully will also enable automatic page migration through a user space program that can analyse the memory load distribution and then rebalance memory use in order to increase performance. The counter framework here implements differential counters for each processor in struct zone. The differential counters are consolidated when a threshold is exceeded (like done in the current implementation for nr_pageache), when slab reaping occurs or when a consolidation function is called. Consolidation uses atomic operations and accumulates counters per zone in the zone structure and also globally in the vm_stat array. VM functions can access the counts by simply indexing a global or zone specific array. The arrangement of counters in an array also simplifies processing when output has to be generated for /proc/*. Counters can be updated by calling inc/dec_zone_page_state or _inc/dec_zone_page_state analogous to *_page_state. The second group of functions can be called if it is known that interrupts are disabled. Special optimized increment and decrement functions are provided. These can avoid certain checks and use increment or decrement instructions that an architecture may provide. We also add a new CONFIG_DMA_IS_NORMAL that signifies that an architecture can do DMA to all memory and therefore ZONE_NORMAL will not be populated. This is only currently set for IA64 SGI SN2 and currently only affects node_page_state(). In the best case node_page_state can be reduced to retrieving a single counter for the one zone on the node. [akpm@osdl.org: cleanups] [akpm@osdl.org: export vm_stat[] for filesystems] Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30[PATCH] msr.c: use register_hotcpu_notifier()Andrew Morton
register_cpu_notifier() cannot do anything in a module, in a !CONFIG_HOTPLUG_CPU kernel. Cc: Chandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30arch/arm26/Kconfig typosMatt LaPlante
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30typo fixes: specfic -> specificAdrian Bunk
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30typo fixes: occuring -> occurringAdrian Bunk
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30typo fixes: mecanism -> mechanismAdrian Bunk
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30typo fixes: bandwith -> bandwidthAdrian Bunk
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-29Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (30 commits) [TIPC]: Initial activation message now includes TIPC version number [TIPC]: Improve response to requests for node/link information [TIPC]: Fixed skb_under_panic caused by tipc_link_bundle_buf [IrDA]: Fix the AU1000 FIR dependencies [IrDA]: Fix RCU lock pairing on error path [XFRM]: unexport xfrm_state_mtu [NET]: make skb_release_data() static [NETFILTE] ipv4: Fix typo (Bugzilla #6753) [IrDA]: MCS7780 usb_driver struct should be static [BNX2]: Turn off link during shutdown [BNX2]: Use dev_kfree_skb() instead of the _irq version [ATM]: basic sysfs support for ATM devices [ATM]: [suni] change suni_init to __devinit [ATM]: [iphase] should be __devinit not __init [ATM]: [idt77105] should be __devinit not __init [BNX2]: Add NETIF_F_TSO_ECN [NET]: Add ECN support for TSO [AF_UNIX]: Datagram getpeersec [NET]: Fix logical error in skb_gso_ok [PKT_SCHED]: PSCHED_TADD() and PSCHED_TADD2() can result,tv_usec >= 1000000 ...
2006-06-29[NET]: make skb_release_data() staticAdrian Bunk
skb_release_data() no longer has any users in other files. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29merge linus into release branchLen Brown
Conflicts: drivers/acpi/acpi_memhotplug.c
2006-06-29[SPARC64]: Print symbol name of regs->tpc on kernel unaligned accesses.David S. Miller
This makes things easier to track down, especially in modules. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29[SPARC64]: time: Kill unnecessary asm/{fhc,sbus,ebus,isa}.h includes.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29[SPARC64] power: Convert to of_driver.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29[SPARC64] auxio: Remove asm/{sbus,ebus}.h includes.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29[SPARC]: sparc32 side of of_device layer IRQ resolution.David S. Miller
Happily, life is much simpler on 32-bit sparc systems. The "intr" property, preferred over the "interrupts" property is used-as. Some minor translations of this value happen on sun4d systems. The stage is now set to rewrite the sparc serial driver probing to use the of_driver framework, and then to convert all SBUS, EBUS, and ISA drivers in-kind so that we can nuke all those special bus frameworks. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29[SPARC64]: of_device layer IRQ resolutionDavid S. Miller
Do IRQ determination generically by parsing the PROM properties, and using IRQ controller drivers for final resolution. One immediate positive effect is that all of the IRQ frobbing in the EBUS, ISA, and PCI controller layers has been eliminated. We just look up the of_device and use the properly computed value. The PCI controller irq_build() routines are gone and no longer used. Unfortunately sbus_build_irq() has to remain as there is a direct reference to this in the sunzilog driver. That can be killed off once the sparc32 side of this is written and the sunzilog driver is transformed into an "of" bus driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29[SPARC64]: Fix typo in clock_probe().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29[SPARC64] clock: Only probe central fhc clock on Enterprise boxes.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29[SPARC64] power: Do not pass SA_SHIRQ to request_irq().David S. Miller
This needs to be a unique interrupt source because we do not have a register or similar to poll to make sure the IRQ is really for us. We do not have any dev_id to pass in anyways, and the generic IRQ layer is now enforcing that when SA_SHIRQ is specified, dev_id must be non-NULL. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29[SPARC64]: Fix typo in isa_dev_get_irq_using_imap().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29[SPARC64]: Let irq_install_pre_handler() get called multiple times.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29[SPARC]: Convert clock drivers to of_driver framework.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29[SPARC64] auxio: Convert to pure of_device driver.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29[SPARC]: Add of_io{remap,unmap}().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29[SPARC]: Encode I/O space into resource flags on sparc32.David S. Miller
On sparc64 we don't need to do this because the resource values are large enough to encode the full physical address. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29[SPARC]: Beginnings of generic of_device framework.David S. Miller
The idea is to fully construct the device register and interrupt values into these of_device objects, and convert all of SBUS, EBUS, ISA drivers to use this new stuff. Much ideas and code taken from Ben H.'s powerpc work. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29[SPARC]: Add of_n_{addr,size}_cells().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-29[SPARC64]: Kill starfire_cookie from SBUS/PCI.David S. Miller
Totally unused. We need to traverse the list of global IRQ translaters, so storing it in the per-bus structures was useless. Signed-off-by: David S. Miller <davem@davemloft.net>