Linus Torvalds [Mon, 4 Feb 2008 20:14:55 +0000 (12:14 -0800)]
Merge branch 'slub-linus' of git://git./linux/kernel/git/christoph/vm
* 'slub-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm:
Explain kmem_cache_cpu fields
SLUB: Do not upset lockdep
SLUB: Fix coding style violations
Add parameter to add_partial to avoid having two functions
SLUB: rename defrag to remote_node_defrag_ratio
Move count_partial before kmem_cache_shrink
SLUB: Fix sysfs refcounting
slub: fix shadowed variable sparse warnings
Christoph Lameter [Tue, 8 Jan 2008 07:20:31 +0000 (23:20 -0800)]
Explain kmem_cache_cpu fields
Add some comments explaining the fields of the kmem_cache_cpu structure.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
root [Tue, 8 Jan 2008 07:20:28 +0000 (23:20 -0800)]
SLUB: Do not upset lockdep
inconsistent {softirq-on-W} -> {in-softirq-W} usage.
swapper/0 [HC0[0]:SC1[1]:HE0:SE0] takes:
(&n->list_lock){-+..}, at: [<
ffffffff802935c1>] add_partial+0x31/0xa0
{softirq-on-W} state was registered at:
[<
ffffffff80259fb8>] __lock_acquire+0x3e8/0x1140
[<
ffffffff80259838>] debug_check_no_locks_freed+0x188/0x1a0
[<
ffffffff8025ad65>] lock_acquire+0x55/0x70
[<
ffffffff802935c1>] add_partial+0x31/0xa0
[<
ffffffff805c76de>] _spin_lock+0x1e/0x30
[<
ffffffff802935c1>] add_partial+0x31/0xa0
[<
ffffffff80296f9c>] kmem_cache_open+0x1cc/0x330
[<
ffffffff805c7984>] _spin_unlock_irq+0x24/0x30
[<
ffffffff802974f4>] create_kmalloc_cache+0x64/0xf0
[<
ffffffff80295640>] init_alloc_cpu_cpu+0x70/0x90
[<
ffffffff8080ada5>] kmem_cache_init+0x65/0x1d0
[<
ffffffff807f1b4e>] start_kernel+0x23e/0x350
[<
ffffffff807f112d>] _sinittext+0x12d/0x140
[<
ffffffffffffffff>] 0xffffffffffffffff
This change isn't really necessary for correctness, but it prevents lockdep
from getting upset and then disabling itself.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Pekka Enberg [Tue, 8 Jan 2008 07:20:27 +0000 (23:20 -0800)]
SLUB: Fix coding style violations
This fixes most of the obvious coding style violations in mm/slub.c as
reported by checkpatch.
Acked-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Christoph Lameter [Tue, 8 Jan 2008 07:20:27 +0000 (23:20 -0800)]
Add parameter to add_partial to avoid having two functions
Add a parameter to add_partial instead of having separate functions. The
parameter allows a more detailed control of where the slab pages is placed in
the partial queues.
If we put slabs back to the front then they are likely immediately used for
allocations. If they are put at the end then we can maximize the time that
the partial slabs spent without being subject to allocations.
When deactivating slab we can put the slabs that had remote objects freed (we
can see that because objects were put on the freelist that requires locks) to
them at the end of the list so that the cachelines of remote processors can
cool down. Slabs that had objects from the local cpu freed to them (objects
exist in the lockless freelist) are put in the front of the list to be reused
ASAP in order to exploit the cache hot state of the local cpu.
Patch seems to slightly improve tbench speed (1-2%).
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Christoph Lameter [Tue, 8 Jan 2008 07:20:26 +0000 (23:20 -0800)]
SLUB: rename defrag to remote_node_defrag_ratio
The NUMA defrag works by allocating objects from partial slabs on remote
nodes. Rename it to
remote_node_defrag_ratio
to be clear about this.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Christoph Lameter [Tue, 8 Jan 2008 07:20:26 +0000 (23:20 -0800)]
Move count_partial before kmem_cache_shrink
Move the counting function for objects in partial slabs so that it is placed
before kmem_cache_shrink.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Christoph Lameter [Tue, 8 Jan 2008 06:29:05 +0000 (22:29 -0800)]
SLUB: Fix sysfs refcounting
If CONFIG_SYSFS is set then free the kmem_cache structure when
sysfs tells us its okay.
Otherwise there is the danger (as pointed out by
Al Viro) that sysfs thinks the kobject still exists after
kmem_cache_destroy() removed it.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Reviewed-by: Pekka J Enberg <penberg@cs.helsinki.fi>
Harvey Harrison [Thu, 31 Jan 2008 23:20:50 +0000 (15:20 -0800)]
slub: fix shadowed variable sparse warnings
Introduce 'len' at outer level:
mm/slub.c:3406:26: warning: symbol 'n' shadows an earlier one
mm/slub.c:3393:6: originally declared here
No need to declare new node:
mm/slub.c:3501:7: warning: symbol 'node' shadows an earlier one
mm/slub.c:3491:6: originally declared here
No need to declare new x:
mm/slub.c:3513:9: warning: symbol 'x' shadows an earlier one
mm/slub.c:3492:6: originally declared here
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Linus Torvalds [Mon, 4 Feb 2008 17:16:03 +0000 (09:16 -0800)]
Merge git://git./linux/kernel/git/x86/linux-2.6-x86
* git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: (78 commits)
x86: fix RTC lockdep warning: potential hardirq recursion
x86: cpa, micro-optimization
x86: cpa, clean up code flow
x86: cpa, eliminate CPA_ enum
x86: cpa, cleanups
x86: implement gbpages support in change_page_attr()
x86: support gbpages in pagetable dump
x86: add gbpages support to lookup_address
x86: add pgtable accessor functions for gbpages
x86: add PUD_PAGE_SIZE
x86: add feature macros for the gbpages cpuid bit
x86: switch direct mapping setup over to set_pte
x86: fix page-present check in cpa_flush_range
x86: remove cpa warning
x86: remove now unused clear_kernel_mapping
x86: switch pci-gart over to using set_memory_np() instead of clear_kernel_mapping()
x86: cpa selftest, skip non present entries
x86: CPA fix pagetable split
x86: rename LARGE_PAGE_SIZE to PMD_PAGE_SIZE
x86: cpa, fix lookup_address
...
Linus Torvalds [Mon, 4 Feb 2008 16:00:54 +0000 (08:00 -0800)]
Merge git://git./linux/kernel/git/rusty/linux-2.6-for-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: (25 commits)
virtio: balloon driver
virtio: Use PCI revision field to indicate virtio PCI ABI version
virtio: PCI device
virtio_blk: implement naming for vda-vdz,vdaa-vdzz,vdaaa-vdzzz
virtio_blk: Dont waste major numbers
virtio_blk: provide getgeo
virtio_net: parametrize the napi_weight for virtio receive queue.
virtio: free transmit skbs when notified, not on next xmit.
virtio: flush buffers on open
virtnet: remove double ether_setup
virtio: Allow virtio to be modular and used by modules
virtio: Use the sg_phys convenience function.
virtio: Put the virtio under the virtualization menu
virtio: handle interrupts after callbacks turned off
virtio: reset function
virtio: populate network rings in the probe routine, not open
virtio: Tweak virtio_net defines
virtio: Net header needs hdr_len
virtio: remove unused id field from struct virtio_blk_outhdr
virtio: clarify NO_NOTIFY flag usage
...
Linus Torvalds [Mon, 4 Feb 2008 15:58:52 +0000 (07:58 -0800)]
Merge git://git./linux/kernel/git/bunk/trivial
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (79 commits)
Jesper Juhl is the new trivial patches maintainer
Documentation: mention email-clients.txt in SubmittingPatches
fs/binfmt_elf.c: spello fix
do_invalidatepage() comment typo fix
Documentation/filesystems/porting fixes
typo fixes in net/core/net_namespace.c
typo fix in net/rfkill/rfkill.c
typo fixes in net/sctp/sm_statefuns.c
lib/: Spelling fixes
kernel/: Spelling fixes
include/scsi/: Spelling fixes
include/linux/: Spelling fixes
include/asm-m68knommu/: Spelling fixes
include/asm-frv/: Spelling fixes
fs/: Spelling fixes
drivers/watchdog/: Spelling fixes
drivers/video/: Spelling fixes
drivers/ssb/: Spelling fixes
drivers/serial/: Spelling fixes
drivers/scsi/: Spelling fixes
...
Linus Torvalds [Mon, 4 Feb 2008 15:58:03 +0000 (07:58 -0800)]
Merge branch 'locks' of git://linux-nfs.org/~bfields/linux
* 'locks' of git://linux-nfs.org/~bfields/linux:
pid-namespaces-vs-locks-interaction
file locks: Use wait_event_interruptible_timeout()
locks: clarify posix_locks_deadlock
Haavard Skinnemoen [Mon, 4 Feb 2008 11:44:48 +0000 (12:44 +0100)]
kbuild: Fix instrumentation removal breakage on avr32
AVR32 still includes Kconfig.instrumentation, so it won't build after
this...
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Mon, 4 Feb 2008 15:56:17 +0000 (07:56 -0800)]
Merge git://git./linux/kernel/git/sam/kbuild
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild:
scsi: fix dependency bug in aic7 Makefile
kbuild: add svn revision information to setlocalversion
kbuild: do not warn about __*init/__*exit symbols being exported
Move Kconfig.instrumentation to arch/Kconfig and init/Kconfig
Add HAVE_KPROBES
Add HAVE_OPROFILE
Create arch/Kconfig
Fix ARM to play nicely with generic Instrumentation menu
kconfig: ignore select of unknown symbol
kconfig: mark config as changed when loading an alternate config
kbuild: Spelling/grammar fixes for config DEBUG_SECTION_MISMATCH
Remove __INIT_REFOK and __INITDATA_REFOK
kbuild: print only total number of section mismatces found
Nick Piggin [Sat, 2 Feb 2008 02:08:53 +0000 (03:08 +0100)]
vm audit: add VM_DONTEXPAND to mmap for drivers that need it
Drivers that register a ->fault handler, but do not range-check the
offset argument, must set VM_DONTEXPAND in the vm_flags in order to
prevent an expanding mremap from overflowing the resource.
I've audited the tree and attempted to fix these problems (usually by
adding VM_DONTEXPAND where it is not obvious).
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Geert Uytterhoeven [Sun, 3 Feb 2008 15:49:09 +0000 (16:49 +0100)]
ADB: Add missing #include <linux/platform_device.h>
Commit
c9f6d3d5c6d4f4cd3a53549a69c92951180e2a76 ("[POWERPC] adb: Replace
sleep notifier with platform driver suspend/resume hooks") introduced
compile errors on m68k because <linux/platform_device.h> is not
explicitly included. On powerpc, it's pulled in through <asm/prom.h>.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrew Morton [Mon, 4 Feb 2008 15:48:10 +0000 (16:48 +0100)]
x86: fix RTC lockdep warning: potential hardirq recursion
After disabling both CONFIG_DEBUG_LOCKING_API_SELFTESTS and netconsole
(using current mainline) I get a login prompt, and also...
[ 5.181668] SELinux: policy loaded with handle_unknown=deny
[ 5.183315] type=1403 audit(
1202100038.157:3): policy loaded auid=
4294967295 ses=
4294967295
[ 5.822073] SELinux: initialized (dev usbfs, type usbfs), uses genfs_contexts
[ 7.819146] ------------[ cut here ]------------
[ 7.819146] WARNING: at kernel/lockdep.c:2033 trace_hardirqs_on+0x9b/0x10d()
[ 7.819146] Modules linked in: generic ext3 jbd ide_disk ide_core
[ 7.819146] Pid: 399, comm: hwclock Not tainted 2.6.24 #4
[ 7.819146] [<
c011d140>] warn_on_slowpath+0x41/0x51
[ 7.819146] [<
c01364a9>] ? lock_release_holdtime+0x50/0x56
[ 7.819146] [<
c013770c>] ? check_usage_forwards+0x19/0x3b
[ 7.819146] [<
c01390c4>] ? __lock_acquire+0xac3/0xb0b
[ 7.819146] [<
c0108c98>] ? native_sched_clock+0x8b/0x9f
[ 7.819146] [<
c01364a9>] ? lock_release_holdtime+0x50/0x56
[ 7.819146] [<
c030ca6c>] ? _spin_unlock_irq+0x22/0x42
[ 7.819146] [<
c013848b>] trace_hardirqs_on+0x9b/0x10d
[ 7.819146] [<
c030ca6c>] _spin_unlock_irq+0x22/0x42
[ 7.819146] [<
c011481e>] hpet_rtc_interrupt+0xdf/0x290
[ 7.819146] [<
c014ea90>] handle_IRQ_event+0x1a/0x46
[ 7.819146] [<
c014f8ea>] handle_edge_irq+0xbe/0xff
[ 7.819146] [<
c0106e08>] do_IRQ+0x6d/0x84
[ 7.819146] [<
c0105596>] common_interrupt+0x2e/0x34
[ 7.819146] [<
c013007b>] ? ktime_get_ts+0x8/0x3f
[ 7.819146] [<
c0139420>] ? lock_release+0x167/0x16f
[ 7.819146] [<
c017974a>] ? core_sys_select+0x2c/0x327
[ 7.819146] [<
c0179792>] core_sys_select+0x74/0x327
[ 7.819146] [<
c0108c98>] ? native_sched_clock+0x8b/0x9f
[ 7.819146] [<
c01364a9>] ? lock_release_holdtime+0x50/0x56
[ 7.819146] [<
c030ca6c>] ? _spin_unlock_irq+0x22/0x42
[ 7.819146] [<
c01384d6>] ? trace_hardirqs_on+0xe6/0x10d
[ 7.819146] [<
c030ca77>] ? _spin_unlock_irq+0x2d/0x42
[ 7.819146] [<
c023b437>] ? rtc_do_ioctl+0x11b/0x677
[ 7.819146] [<
c01c487e>] ? inode_has_perm+0x5e/0x68
[ 7.819146] [<
c01364a9>] ? lock_release_holdtime+0x50/0x56
[ 7.819146] [<
c0108c98>] ? native_sched_clock+0x8b/0x9f
[ 7.819146] [<
c01c490b>] ? file_has_perm+0x83/0x8c
[ 7.819146] [<
c023ba08>] ? rtc_ioctl+0xf/0x11
[ 7.819146] [<
c017898d>] ? do_ioctl+0x55/0x67
[ 7.819146] [<
c0179d15>] sys_select+0x93/0x163
[ 7.819146] [<
c0104b39>] ? sysenter_past_esp+0x9a/0xa5
[ 7.819146] [<
c0104afe>] sysenter_past_esp+0x5f/0xa5
[ 7.819146] =======================
[ 7.819146] ---[ end trace
96540ca301ffb84c ]---
[ 7.819210] rtc: lost 6 interrupts
[ 7.870668] type=1400 audit(
1202128840.794:4): avc: denied { audit_write } for pid=399 comm="hwclock" capability=29 scontext=system_u:system_r:hwclock_t:s0 tcontext=system_u:system_r:hwclock_t:s0 tclass=capability
[ 9.538866] input: PC Speaker as /class/input/input5
Because hpet_rtc_interrupt()'s call to get_rtc_time() ends up
resolving to include/asm-generic/rtc.h's (hilariously inlined)
get_rtc_time(), which does spin_unlock_irq() from hard IRQ context.
The obvious patch fixes it.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Mon, 4 Feb 2008 15:48:10 +0000 (16:48 +0100)]
x86: cpa, micro-optimization
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Mon, 4 Feb 2008 15:48:10 +0000 (16:48 +0100)]
x86: cpa, clean up code flow
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Ingo Molnar [Mon, 4 Feb 2008 15:48:09 +0000 (16:48 +0100)]
x86: cpa, eliminate CPA_ enum
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Ingo Molnar [Mon, 4 Feb 2008 15:48:09 +0000 (16:48 +0100)]
x86: cpa, cleanups
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Andi Kleen [Mon, 4 Feb 2008 15:48:09 +0000 (16:48 +0100)]
x86: implement gbpages support in change_page_attr()
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Andi Kleen [Mon, 4 Feb 2008 15:48:09 +0000 (16:48 +0100)]
x86: support gbpages in pagetable dump
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Andi Kleen [Mon, 4 Feb 2008 15:48:09 +0000 (16:48 +0100)]
x86: add gbpages support to lookup_address
[ tglx@linutronix.de: fix bootup crash on sparse mappings. ]
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Andi Kleen [Mon, 4 Feb 2008 15:48:09 +0000 (16:48 +0100)]
x86: add pgtable accessor functions for gbpages
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Andi Kleen [Mon, 4 Feb 2008 15:48:09 +0000 (16:48 +0100)]
x86: add PUD_PAGE_SIZE
a PUD entry covers 1GB of virtual memory.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Andi Kleen [Mon, 4 Feb 2008 15:48:09 +0000 (16:48 +0100)]
x86: add feature macros for the gbpages cpuid bit
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Andi Kleen [Mon, 4 Feb 2008 15:48:09 +0000 (16:48 +0100)]
x86: switch direct mapping setup over to set_pte
Use set_pte() for setting up the 2MB pages in the direct mapping.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Mon, 4 Feb 2008 15:48:08 +0000 (16:48 +0100)]
x86: fix page-present check in cpa_flush_range
pte_present() might return true for PROT_NONE mappings.
Explicitely check the present bit.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Mon, 4 Feb 2008 15:48:08 +0000 (16:48 +0100)]
x86: remove cpa warning
this race is legit and can happen on SMP systems.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Andi Kleen [Mon, 4 Feb 2008 15:48:08 +0000 (16:48 +0100)]
x86: remove now unused clear_kernel_mapping
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Andi Kleen [Mon, 4 Feb 2008 15:48:08 +0000 (16:48 +0100)]
x86: switch pci-gart over to using set_memory_np() instead of clear_kernel_mapping()
pci-gart needs to unmap the IOMMU aperture to prevent cache corruptions.
Switch this over to using set_memory_np() instead of clear_kernel_mapping().
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Mon, 4 Feb 2008 15:48:08 +0000 (16:48 +0100)]
x86: cpa selftest, skip non present entries
pud and pmd entries in the RAM area might be marked as non present.
Do not try to modify them in the selftest.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Mon, 4 Feb 2008 15:48:08 +0000 (16:48 +0100)]
x86: CPA fix pagetable split
Move the readout of the large entry into the spinlock section to
prevent an unlikely but possible race.
Mark the pmd/pud entry present after the split. We preserved the
non present bit in the new split mapping.
Remove the stale gfp_flags double initialization.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Andi Kleen [Mon, 4 Feb 2008 15:48:08 +0000 (16:48 +0100)]
x86: rename LARGE_PAGE_SIZE to PMD_PAGE_SIZE
Fix up all users.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Mon, 4 Feb 2008 15:48:07 +0000 (16:48 +0100)]
x86: cpa, fix lookup_address
lookup_address() returns a wrong level and a wrong pointer to a non
existing pte, when pmd or pud entries are marked !present. This
happens for example due to boot time mapping of GART into the low
memory space.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Mon, 4 Feb 2008 15:48:07 +0000 (16:48 +0100)]
x86: AMD Athlon X2 hard hang fix
An Athlon 64 X2 test system showed hard hangs shortly after marking
the kernel text read-only, if we tried to preserve largepages and
changed the PSE entry from RW to RO. The pagetable code itself is
correct, it's the CPU that locked up hard (and not even the NMI
watchdog could punch through that hard hang).
So be conservative and always do splitups - like we did in the past.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Mon, 4 Feb 2008 15:48:07 +0000 (16:48 +0100)]
x86: cpa, preserve large pages if possible
When CPA is called on a range which fits into a large page mapping,
avoid to split the page when:
1) There is no change of attributes
2) The range to change is a complete large mapping
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Mon, 4 Feb 2008 15:48:07 +0000 (16:48 +0100)]
x86: cpa, check if we changed anything and tlb flushing is necessary
Flush tlbs only when there was a real change.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Mon, 4 Feb 2008 15:48:07 +0000 (16:48 +0100)]
x86: introduce struct cpa_data
The number of arguments which need to be transported is increasing
and we want to add flush optimizations and large page preserving.
Create struct cpa data and pass a pointer instead of increasing the
number of arguments further.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Andi Kleen [Mon, 4 Feb 2008 15:48:06 +0000 (16:48 +0100)]
x86: cpa, only flush the cache if the caching attributes have changed
We only need to flush the caches in cpa() if the the caching attributes
have changed. Otherwise only flush the TLBs.
This checks the PAT bits too although they are currently not used by
the kernel.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Andi Kleen [Mon, 4 Feb 2008 15:48:06 +0000 (16:48 +0100)]
x86: cpa, add the PAT bit defines
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Mon, 4 Feb 2008 15:48:06 +0000 (16:48 +0100)]
x86: CPA return early when requested feature is not available
Mask out the not supported bits (e.g. NX). If the clr/set masks
are empty after the mask return without changing anything.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Huang, Ying [Mon, 4 Feb 2008 15:48:06 +0000 (16:48 +0100)]
x86: fix EFI mapping
The patch updates EFI runtime memory mapping code, by making EFI
areas explicitly executable.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Mon, 4 Feb 2008 15:48:05 +0000 (16:48 +0100)]
x86: no CPA on iounmap
When an ioremap is unmapped, do not change the page attributes. There might
be another mapping of the same physical address. PAT might detect a conflicting
mapping attribute for no good reason. The mapping is removed anyway.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Mon, 4 Feb 2008 15:48:05 +0000 (16:48 +0100)]
x86: ioremap remove the range check of cpa
Now that cpa works on non-direct mappings as well, we can safely
remove the range check in ioremap_change_attr().
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Mon, 4 Feb 2008 15:48:05 +0000 (16:48 +0100)]
x86: simplify __ioremap
Remove tons of castings which make the code hard to read.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Mon, 4 Feb 2008 15:48:05 +0000 (16:48 +0100)]
x86: CPA use the existing pfn in split as well
When splitting large pages, we ge the pfn from the existing entry
instead of calculating it ourself.
This removes the last remaining range restriction of the cpa code.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Arjan van de Ven [Mon, 4 Feb 2008 15:48:05 +0000 (16:48 +0100)]
x86: use the pfn from the page when change its attributes
When changing the attributes of a pte, we should use the PFN from the
existing PTE rather than going through hoops calculating what we think
it might have been; this is both fragile and totally unneeded. It also
makes it more hairy to call any of these functions on non-direct maps
for no good reason whatsover.
With this change, __change_page_attr() no longer takes a pfn as argument,
which simplifies all the callers.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@tglx.de>
Arjan van de Ven [Mon, 4 Feb 2008 15:48:05 +0000 (16:48 +0100)]
x86: teach the static_protection function about high mappings
Right now, enforcing that the high mapping of the kernel text doesn't
get the NX bit is done deep in the guts of CPA, rather than in the
static_protection() function that enforces all other per-arch sanity
checks.
This patch moves this sanity check into the central static_protection()
function instead, and makes it apply ONLY to the kernel text, not to all
other areas in the high mapping.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Harvey Harrison [Mon, 4 Feb 2008 15:48:05 +0000 (16:48 +0100)]
x86: add cpu mtrr init function definitions to mtrr.h
mtrr.h was included everywhere needed. Fixes the following sparse
warnings. Also, the return types in the extern definitions were
incorrect.
arch/x86/kernel/cpu/mtrr/amd.c:113:12: warning: symbol 'amd_init_mtrr' was not declared. Should it be static?
arch/x86/kernel/cpu/mtrr/cyrix.c:268:12: warning: symbol 'cyrix_init_mtrr' was not declared. Should it be static?
arch/x86/kernel/cpu/mtrr/centaur.c:218:12: warning: symbol 'centaur_init_mtrr' was not declared. Should it be static?
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Harvey Harrison [Mon, 4 Feb 2008 15:48:04 +0000 (16:48 +0100)]
x86: add cpu init function defintions to cpu.h
cpu.h was already included everywhere needed.
Fixes following sparse warnings:
arch/x86/kernel/cpu/amd.c:343:12: warning: symbol 'amd_init_cpu' was not declared. Should it be static?
arch/x86/kernel/cpu/cyrix.c:444:12: warning: symbol 'cyrix_init_cpu' was not declared. Should it be static?
arch/x86/kernel/cpu/cyrix.c:456:12: warning: symbol 'nsc_init_cpu' was not declared. Should it be static?
arch/x86/kernel/cpu/centaur.c:467:12: warning: symbol 'centaur_init_cpu' was not declared. Should it be static?
arch/x86/kernel/cpu/transmeta.c:112:12: warning: symbol 'transmeta_init_cpu' was not declared. Should it be static?
arch/x86/kernel/cpu/intel.c:296:12: warning: symbol 'intel_cpu_init' was not declared. Should it be static?
arch/x86/kernel/cpu/nexgen.c:56:12: warning: symbol 'nexgen_init_cpu' was not declared. Should it be static?
arch/x86/kernel/cpu/umc.c:22:12: warning: symbol 'umc_init_cpu' was not declared. Should it be static?
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Harvey Harrison [Mon, 4 Feb 2008 15:48:04 +0000 (16:48 +0100)]
x86: small sparse fix in process_32.c
arch/x86/kernel/process_32.c:254:43: warning: Using plain integer as NULL pointer
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Harvey Harrison [Mon, 4 Feb 2008 15:48:04 +0000 (16:48 +0100)]
x86: add function prototype to vm86.h
Global functions should include their prototypes.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Harvey Harrison [Mon, 4 Feb 2008 15:48:04 +0000 (16:48 +0100)]
x86: add include to cpu/intel.c
Fixes sparse warning:
arch/x86/kernel/cpu/intel.c:48:15: warning: symbol 'ppro_with_ram_bug' was not declared. Should it be static?
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Harvey Harrison [Mon, 4 Feb 2008 15:48:03 +0000 (16:48 +0100)]
x86: remove final FASTCALL() uses
A few snuck back in to x86.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Andi Kleen [Mon, 4 Feb 2008 15:48:03 +0000 (16:48 +0100)]
x86: remove special NUMAQ support in io_32.h
Now that the only user does it on its own remove the NUMAQ support macros
in io_32.h
The next step would be to convert the preprocessor mess to actually readable
standard inlines.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Andi Kleen [Mon, 4 Feb 2008 15:48:03 +0000 (16:48 +0100)]
x86: move NUMAQ io handling into arch/x86/pci/numa.c
numa.c is the only user of the {in,out}*_quad functions. And it has only a few call
sites. Change them to open code the magic NUMAQ port access.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cyrill Gorcunov [Mon, 4 Feb 2008 15:48:03 +0000 (16:48 +0100)]
x86: cleanup - eliminate numbers in LDT allocation code
This patch eliminates numbers in LDT allocation code
trying to make it clear to understand from where
these numbers come.
No code changed:
text data bss dec hex filename
1896 0 0 1896 768 ldt.o.before
1896 0 0 1896 768 ldt.o.after
md5:
6cbec8705008ddb4b704aade60bceda3 ldt.o.before.asm
6cbec8705008ddb4b704aade60bceda3 ldt.o.after.asm
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Jeremy Fitzhardinge [Mon, 4 Feb 2008 15:48:02 +0000 (16:48 +0100)]
x86: update reference for PAE tlb flushing
Remove bogus reference to "Pentium-II erratum A13" and point to the
actual canonical source of information about what requirements x86
processors have for PAE pagetable updates.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Jeremy Fitzhardinge [Mon, 4 Feb 2008 15:48:02 +0000 (16:48 +0100)]
x86: pud_clear: only reload cr3 if necessary
Rather than unconditionally reloading cr3, only do so if the pud we're
updating is within the active pgd.
This eliminates TLB flushes most of the time. The
performance-critical uses of pud_clear are during execve and exit, but
in those cases cr3 is referring to some other pagetable. The only
other use of pud_clear is during a large (1Gbyte+) munmap, and those
are sufficiently rare that a couple of cr3 reloads won't hurt.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Jeremy Fitzhardinge [Mon, 4 Feb 2008 15:48:02 +0000 (16:48 +0100)]
x86: revert "defer cr3 reload when doing pud_clear()"
Revert "defer cr3 reload when doing pud_clear()" since I'm going to
replace it.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Jeremy Fitzhardinge [Mon, 4 Feb 2008 15:48:02 +0000 (16:48 +0100)]
x86: unify PAE/non-PAE pgd_ctor
The constructors for PAE and non-PAE pgd_ctors are more or less
identical, and can be made into the same function.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: William Irwin <wli@holomorphy.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Rob Landley [Mon, 4 Feb 2008 15:48:02 +0000 (16:48 +0100)]
documentation: add Documentation/x86-64/00-INDEX
Signed-off-by: Rob Landley <rob@landley.net>
Cc: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Pavel Machek [Mon, 4 Feb 2008 15:48:01 +0000 (16:48 +0100)]
x86: remove misleading comments in trampoline_*.S
Both trampolines actually *do* set up stack. (Is the "we jump into
compressed/head.S" comment still true?)
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Harvey Harrison [Mon, 4 Feb 2008 15:48:01 +0000 (16:48 +0100)]
x86: sparse errors from string_32.h
include/asm/string_32.h:216:26: warning: cast truncates bits from constant value (
cccccccc becomes cc)
include/asm/string_32.h:219:27: warning: cast truncates bits from constant value (
cccccccc becomes cccc)
include/asm/string_32.h:222:27: warning: cast truncates bits from constant value (
cccccccc becomes cccc)
include/asm/string_32.h:223:30: warning: cast truncates bits from constant value (
cccccccc becomes cc)
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Harvey Harrison [Mon, 4 Feb 2008 15:48:01 +0000 (16:48 +0100)]
x86: remove long dead cyrix mtrr code
cyrix_arr_init was #if 0 all the way back to at least v2.6.12.
This was the only place where arr3_protected was set to anything
but zero. Eliminate this variable.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
H. Peter Anvin [Mon, 4 Feb 2008 15:48:00 +0000 (16:48 +0100)]
asm-generic/tlb.h: remove <linux/quicklist.h>
Remove unused <linux/quicklist.h> from <asm-generic/tlb.h>; per
Christoph Lameter this should have been part of a previous patch
reversal but apparently didn't get removed.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
H. Peter Anvin [Mon, 4 Feb 2008 15:48:00 +0000 (16:48 +0100)]
x86 setup: print missing CPU features in cleartext
Instead of obscure numbers, print the list of missing CPU features in
cleartext. To conserve space, use a host program (mkcpustr.c) to
produce a compact list of mandatory features only.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
H. Peter Anvin [Mon, 4 Feb 2008 15:48:00 +0000 (16:48 +0100)]
x86: unify CPU feature string names
Move the CPU feature string names to a separate file (common to 32
and 64 bits); additionally, make <asm/cpufeature.h> includable by host
code in preparation for including the CPU feature strings in the boot
code.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
H. Peter Anvin [Mon, 4 Feb 2008 15:48:00 +0000 (16:48 +0100)]
x86: reintroduce volatile keyword in prototype to clflush()
The volatile keyword was removed from the clflush() prototype
in commit
e34907ae180f4fe6c28bb4516c679c2f81b0c9ed; the comment there
states:
x86: remove volatile keyword from clflush.
the p parameter is an explicit memory reference, and is
enough to prevent gcc to being nasty here. The volatile
seems completely not needed.
This reflects incorrect understanding of the function of the volatile
keyword there. The purpose of the volatile keyword is informing gcc
that it is safe to pass a volatile pointer to this function.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
H. Peter Anvin [Mon, 4 Feb 2008 15:47:59 +0000 (16:47 +0100)]
x86: cpuid, msr: use inode mutex instead of big kernel lock
Instead of grabbing the BKL on seek, use the inode mutex in the style
of generic_file_llseek().
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
H. Peter Anvin [Mon, 4 Feb 2008 15:47:59 +0000 (16:47 +0100)]
x86: cpuid: allow querying %ecx-sensitive CPUID levels
After /dev/*/cpuid was introduced, Intel changed the semantics of the
CPUID instruction to be sentitive to %ecx as well as %eax. This patch
allows querying of %ecx-sensitive levels by placing the %ecx value in
the upper 32 bits of the file position (lower 32 bits always were used
for the %eax value.)
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
H. Peter Anvin [Mon, 4 Feb 2008 15:47:59 +0000 (16:47 +0100)]
x86: use _ASM_EXTABLE macro in include/asm-x86/uaccess_64.h
Use the _ASM_EXTABLE macro from <asm/asm.h>, instead of open-coding
__ex_table entires in include/asm-x86/uaccess_64.h.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
H. Peter Anvin [Mon, 4 Feb 2008 15:47:59 +0000 (16:47 +0100)]
x86: use _ASM_EXTABLE macro in include/asm-x86/uaccess_32.h
Use the _ASM_EXTABLE macro from <asm/asm.h>, instead of open-coding
__ex_table entires in include/asm-x86/uaccess_32.h.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
H. Peter Anvin [Mon, 4 Feb 2008 15:47:58 +0000 (16:47 +0100)]
x86: use _ASM_EXTABLE macro in include/asm-x86/system.h
Use the _ASM_EXTABLE macro from <asm/asm.h>, instead of open-coding
__ex_table entires in include/asm-x86/system.h.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
H. Peter Anvin [Mon, 4 Feb 2008 15:47:58 +0000 (16:47 +0100)]
x86: use _ASM_EXTABLE macro in include/asm-x86/msr.h
Use the _ASM_EXTABLE macro from <asm/asm.h>, instead of open-coding
__ex_table entires in include/asm-x86/msr.h.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
H. Peter Anvin [Mon, 4 Feb 2008 15:47:58 +0000 (16:47 +0100)]
x86: use _ASM_EXTABLE macro in include/asm-x86/i387.h
Use the _ASM_EXTABLE macro from <asm/asm.h>, instead of open-coding
__ex_table entires in include/asm-x86/i387.h.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
H. Peter Anvin [Mon, 4 Feb 2008 15:47:58 +0000 (16:47 +0100)]
x86: use _ASM_EXTABLE macro in include/asm-x86/futex.h
Use the _ASM_EXTABLE macro from <asm/asm.h>, instead of open-coding
__ex_table entires in include/asm-x86/futex.h.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
H. Peter Anvin [Mon, 4 Feb 2008 15:47:58 +0000 (16:47 +0100)]
x86: use _ASM_EXTABLE macro in arch/x86/mm/init_32.c
Use the _ASM_EXTABLE macro from <asm/asm.h>, instead of open-coding
__ex_table entires in arch/x86/mm/init_32.c.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
H. Peter Anvin [Mon, 4 Feb 2008 15:47:57 +0000 (16:47 +0100)]
x86: use _ASM_EXTABLE macro in arch/x86/lib/usercopy_64.c
Use the _ASM_EXTABLE macro from <asm/asm.h>, instead of open-coding
__ex_table entires in arch/x86/lib/usercopy_64.c.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
H. Peter Anvin [Mon, 4 Feb 2008 15:47:57 +0000 (16:47 +0100)]
x86: use _ASM_EXTABLE macro in arch/x86/lib/usercopy_32.c
Use the _ASM_EXTABLE macro from <asm/asm.h>, instead of open-coding
__ex_table entires in arch/x86/lib/usercopy_32.c.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
H. Peter Anvin [Mon, 4 Feb 2008 15:47:57 +0000 (16:47 +0100)]
x86: use _ASM_EXTABLE macro in arch/x86/lib/mmx_32.c
Use the _ASM_EXTABLE macro from <asm/asm.h>, instead of open-coding
__ex_table entires in arch/x86/lib/mmx_32.c.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
H. Peter Anvin [Mon, 4 Feb 2008 15:47:56 +0000 (16:47 +0100)]
x86: use _ASM_EXTABLE macro in arch/x86/kernel/test_nx.c
Use the _ASM_EXTABLE macro from <asm/asm.h>, instead of open-coding
__ex_table entires in arch/x86/kernel/test_nx.c.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
H. Peter Anvin [Mon, 4 Feb 2008 15:47:56 +0000 (16:47 +0100)]
x86: add _ASM_EXTABLE macro to <asm/asm.h>
Instead of open-coding the __ex_table information at each callsite,
construct a common macro that can work regardless of CPU size.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Ian Campbell [Mon, 4 Feb 2008 15:47:56 +0000 (16:47 +0100)]
x86: define OBJCOPYFLAGS explicitly for each target.
Do this rather than defining a global version and overriding it in
almost all cases in order to make subsequent patches simpler.
Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Harvey Harrison [Mon, 4 Feb 2008 15:47:56 +0000 (16:47 +0100)]
x86: reduce ifdef sections in fault.c
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Yinghai Lu [Mon, 4 Feb 2008 15:47:56 +0000 (16:47 +0100)]
x86: print out node_data addr and bootmap_start addr
print out node_data addr and bootmap_start addr.
helpful for debugging early crashes on high-end NUMA systems.
Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Thomas Gleixner [Mon, 4 Feb 2008 15:47:55 +0000 (16:47 +0100)]
x86: CPA remove bogus NX clear
In split_large_page we clear the NX bit for the new split ptes, but we
need to preserve the original setting of it for the split ptes.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Florian Fainelli [Mon, 4 Feb 2008 15:47:55 +0000 (16:47 +0100)]
x86: mach-rdc321x Kconfig fix
The mach-rdc321x uses the leds-gpio driver and explicitely
selects it, this driver also depends on the leds class module,
select it as well.
Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Sam Ravnborg [Mon, 4 Feb 2008 15:47:55 +0000 (16:47 +0100)]
x86: rename module scx200_32 to scx200
The module scx200 were renamed to scx200_32 by the
merge of the 32 and 64 bit x86 arch trees.
Keep the _32 prefix on the .c file as it is 32 bit
specific and fix the module name in the Makefile.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Sam Ravnborg [Mon, 4 Feb 2008 15:47:55 +0000 (16:47 +0100)]
x86: restore correct module name for apm
The apm module were renamed to apm_32 during the merge of 32 and 64 bit
x86 which is unfortunate. As apm is 32 bit specific we like to keep the
_32 in the filename but the module should be named apm.
Fix this in the Makefile.
Reported-by: "A.E.Lawrence" <lawrence_a_e@ntlworld.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "A.E.Lawrence" <lawrence_a_e@ntlworld.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Ingo Molnar [Mon, 4 Feb 2008 15:47:54 +0000 (16:47 +0100)]
x86: VMI fix
Jeff Chua bisected down a vmware guest boot breakage (hang) to
this paravirt change:
commit
8d947344c47a40626730bb80d136d8daac9f2060
Author: Glauber de Oliveira Costa <gcosta@redhat.com>
Date: Wed Jan 30 13:31:12 2008 +0100
x86: change write_idt_entry signature
fix the off-by-one indexing bug ...
Bisected-by: Jeff Chua <jeff.chua.linux@gmail.com>
Tested-by: Jeff Chua <jeff.chua.linux@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Mon, 4 Feb 2008 15:47:54 +0000 (16:47 +0100)]
x86: relax RAM check in ioremap()
Kevin Winchester reported the loss of direct rendering, due to:
[ 0.588184] agpgart: Detected AGP bridge 0
[ 0.588184] agpgart: unable to get memory for graphics translation table.
[ 0.588184] agpgart: agp_backend_initialize() failed.
[ 0.588207] agpgart-amd64: probe of 0000:00:00.0 failed with error -12
and bisected it down to:
commit
266b9f8727976769e2ed2dad77ac9295f37e321e
Author: Thomas Gleixner <tglx@linutronix.de>
Date: Wed Jan 30 13:34:06 2008 +0100
x86: fix ioremap RAM check
this check was too strict and caused an ioremap() failure.
the problem is due to the somewhat unclean way of how the GART code
reserves a memory range for its aperture, and how it utilizes it
later on.
Allow RAM pages to be ioremap()-ed too, as long as they are reserved.
Bisected-by: Kevin Winchester <kjwinchester@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Tested-by: Kevin Winchester <kjwinchester@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Linus Torvalds [Mon, 4 Feb 2008 15:43:36 +0000 (07:43 -0800)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (77 commits)
[IPV6]: Reorg struct ifmcaddr6 to save some bytes
[INET_TIMEWAIT_SOCK]: Reorganize struct inet_timewait_sock to save some bytes
[DCCP]: Reorganize struct dccp_sock to save 8 bytes
[INET6]: Reorganize struct inet6_dev to save 8 bytes
[SOCK] proto: Add hashinfo member to struct proto
EMAC driver: Fix bug: The clock divisor is set to all ones at reset.
EMAC driver: fix bug - invalidate data cache of new_skb->data range when cache is WB
EMAC driver: add power down mode
EMAC driver: ADSP-BF52x arch/mach support
EMAC driver: use simpler comment headers and strip out information that is maintained in the scm's log
EMAC driver: bf537 MAC multicast hash filtering patch
EMAC driver: define MDC_CLK=2.5MHz and caculate mdc_div according to SCLK.
EMAC driver: shorten the mdelay value to solve netperf performance issue
[netdrvr] sis190: build fix
sky2: fix Wake On Lan interaction with BIOS
sky2: restore multicast addresses after recovery
pci-skeleton: Misc fixes to build neatly
phylib: Add Realtek 821x eth PHY support
natsemi: Update locking documentation
PHYLIB: Locking fixes for PHY I/O potentially sleeping
...
Linus Torvalds [Mon, 4 Feb 2008 15:42:46 +0000 (07:42 -0800)]
Merge git://git./linux/kernel/git/gregkh/driver-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6:
Driver core: Remove unneeded get_{device,driver}() calls.
Driver core: Update some prototypes in platform.txt
driver core: convert to use class_find_device api
PM: Export device_pm_schedule_removal
nozomi: finish constification
nozomi: constify driver
nozomi driver update
Add ja_JP translation of stable_kernel_rules.txt
kobject: kerneldoc comment fix
kobject: Always build in kernel/ksysfs.o.
Linus Torvalds [Mon, 4 Feb 2008 15:42:16 +0000 (07:42 -0800)]
Merge git://git./linux/kernel/git/gregkh/pci-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6:
PCI: fix 4x section mismatch warnings
PCI: fix section mismatch warnings referring to pci_do_scan_bus
pci: pci_enable_device_bars() fix for lpfc driver
Revert "PCI: PCIE ASPM support"
Rusty Russell [Tue, 5 Feb 2008 04:50:12 +0000 (23:50 -0500)]
virtio: balloon driver
After discussions with Anthony Liguori, it seems that the virtio
balloon can be made even simpler. Here's my attempt.
The device configuration tells the driver how much memory it should
take from the guest (ie. balloon size). The guest feeds the page
numbers it has taken via one virtqueue.
A second virtqueue feeds the page numbers the driver wants back: if
the device has the VIRTIO_BALLOON_F_MUST_TELL_HOST bit, then this
queue is compulsory, otherwise it's advisory (and the guest can simply
fault the pages back in).
This driver can be enhanced later to deflate the balloon via a
shrinker, oom callback or we could even go for a complete set of
in-guest regulators.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Anthony Liguori [Mon, 28 Jan 2008 15:59:59 +0000 (09:59 -0600)]
virtio: Use PCI revision field to indicate virtio PCI ABI version
As Avi pointed out, as we continue to massage the virtio PCI ABI, we can make
things a little more friendly to users by utilizing the PCI revision field to
indicate which version of the ABI we're using. This is a hard ABI version
and incrementing it will cause the guest driver to break.
This is the necessary changes to virtio_pci to support this.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
git.samba.org / sfrench / cifs-2.6.git / log