Suresh Siddha ce4e240c27 x86: add x2apic_wrmsr_fence() to x2apic flush tlb paths ...

Impact: optimize APIC IPI related barriers

Uncached MMIO accesses for xapic are inherently serializing and hence
we don't need explicit barriers for xapic IPI paths.

x2apic MSR writes/reads don't have serializing semantics and hence need
a serializing instruction or mfence, to make all the previous memory
stores globally visisble before the x2apic msr write for IPI.

Add x2apic_wrmsr_fence() in flush tlb path to x2apic specific paths.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: "steiner@sgi.com" <steiner@sgi.com>
Cc: Nick Piggin <npiggin@suse.de>
LKML-Reference: <1237313814.27006.203.camel@localhost.localdomain>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

2009-03-18 09:36:14 +01:00

..

acpi

Merge branches 'x86/acpi', 'x86/apic', 'x86/asm', 'x86/cleanups', 'x86/mm', 'x86/signal' and 'x86/urgent'; commit 'v2.6.29-rc6' into x86/core

2009-02-24 21:50:43 +01:00

apic

x86: add x2apic_wrmsr_fence() to x2apic flush tlb paths

2009-03-18 09:36:14 +01:00

cpu

Merge branches 'x86/apic', 'x86/asm', 'x86/cleanups', 'x86/debug', 'x86/kconfig', 'x86/mm', 'x86/ptrace', 'x86/setup' and 'x86/urgent'; commit 'v2.6.29-rc8' into x86/core

2009-03-14 16:25:40 +01:00

.gitignore

arch/x86/kernel/.gitignore: Added vmlinux.lds to .gitignore file because it shouldn't be tracked.

2008-07-10 10:13:51 -07:00

alternative.c

Merge branch 'x86/core' into x86/mce2

2009-03-03 21:05:42 -08:00

amd_iommu_init.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu

2009-01-03 12:03:52 -08:00

amd_iommu.c

AMD IOMMU: remove now unnecessary #ifdefs

2009-01-03 16:44:15 +01:00

aperture_64.c

aperture_64.c: clarify that too small aperture is valid reason for this code

2008-11-28 15:24:39 +01:00

apm_32.c

Merge branch 'linus' into x86/apic

2009-02-22 20:05:19 +01:00

asm-offsets_32.c

x86: make lazy %gs optional on x86_32

2009-02-10 00:42:00 +01:00

asm-offsets_64.c

x86: remove pda.h

2009-01-20 12:29:20 +09:00

asm-offsets.c

…

audit_64.c

x86_64: move kernel

2007-10-11 11:17:24 +02:00

bios_uv.c

x86: bios_uv.c: uv_systab should be static

2008-12-29 22:08:28 -08:00

bootflag.c

x86: coding style cleanup for kernel/bootflag.c

2008-01-30 13:32:31 +01:00

check.c

x86: fix code paths used by update_mptable

2009-03-13 02:37:19 +01:00

cpuid.c

Merge branch 'cpus4096-for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-01-03 12:04:39 -08:00

crash_dump_32.c

kdump: make elfcorehdr_addr independent of CONFIG_PROC_VMCORE

2008-10-20 08:52:39 -07:00

crash_dump_64.c

kdump: make elfcorehdr_addr independent of CONFIG_PROC_VMCORE

2008-10-20 08:52:39 -07:00

crash.c

x86, apic: remove duplicate asm/apic.h inclusions

2009-02-17 17:52:44 +01:00

doublefault_32.c

x86: fix virt_addr_valid() with CONFIG_DEBUG_VIRTUAL=y, v2

2008-10-13 10:33:15 +02:00

ds.c

x86, pebs: correct qualifier passed to ds_write_config() from ds_request_pebs()

2009-03-06 16:13:15 +01:00

dumpstack_32.c

ftrace: print real return in dumpstack for function graph

2008-12-03 08:56:25 +01:00

dumpstack_64.c

x86-64: Move current task from PDA to per-cpu and consolidate with 32-bit.

2009-01-19 00:38:58 +09:00

dumpstack.c

x86: don't pretend that non-framepointer stack traces are reliable

2009-02-09 09:45:29 +01:00

dumpstack.h

ftrace: print real return in dumpstack for function graph

2008-12-03 08:56:25 +01:00

e820.c

x86: fix e820_update_range()

2009-03-13 05:38:29 +01:00

early_printk.c

x86: properly __init-annotate recent early_printk additions

2009-03-13 02:37:18 +01:00

early-quirks.c

x86: only scan the root bus in early PCI quirks

2009-01-09 12:46:22 -08:00

efi_32.c

x86: fix i486 suspend to disk CR4 oops

2008-08-18 08:50:19 +02:00

efi_64.c

Merge branch 'linus' into core/percpu

2009-03-11 10:29:28 +01:00

efi_stub_32.S

Merge branch 'x86/asm' into x86/mm

2009-02-25 08:27:46 +01:00

efi_stub_64.S

x86: efi_stub_32,64 - add missing ENDPROCs

2009-02-24 18:08:40 +01:00

efi.c

Merge branch 'linus' into core/percpu

2009-03-11 10:29:28 +01:00

entry_32.S

x86: entry_32.S fix compile warnings - fix work mask bit width

2009-03-14 09:42:51 +01:00

entry_64.S

x86-64: move save_paranoid into .kprobes.text

2009-03-12 11:57:46 +01:00

ftrace.c

tracing, x86: fix constraint for parent variable

2009-02-11 10:06:13 +01:00

geode_32.c

x86, geode: add a VSA2 ID for General Software

2008-06-19 14:19:03 +02:00

head32.c

x86: change static allocation of trampoline area

2008-12-08 13:49:45 +01:00

head64.c

x86: remove pda_init()

2009-01-20 12:29:19 +09:00

head_32.S

x86: use _types.h headers in asm where available

2009-02-13 11:35:01 -08:00

head_64.S

x86: head_64.S - use IDT_ENTRIES instead of hardcoded number

2009-02-24 18:08:38 +01:00

head.c

x86, debug: remove EBDA debug printk

2008-12-12 11:08:42 +01:00

hpet.c

Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-02-17 14:27:39 -08:00

i386_ksyms_32.c

ftrace: rename FTRACE to FUNCTION_TRACER

2008-10-20 18:27:03 +02:00

i387.c

x86, math-emu: fix init_fpu for task != current

2009-03-04 20:33:16 +01:00

i8237.c

i8327: fix outb() parameter order

2009-02-10 13:13:23 +01:00

i8253.c

cpumask: convert struct clock_event_device to cpumask pointers.

2008-12-13 21:20:26 +10:30

i8259.c

x86: refactor x86_quirks support

2009-02-23 00:08:11 +01:00

init_task.c

take init_fs to saner place

2008-12-31 18:07:42 -05:00

io_delay.c

x86: add io delay quirk for Presario F700

2008-09-03 16:42:51 -07:00

ioport.c

x86-32: use non-lazy io bitmap context switching

2009-03-02 12:07:48 +01:00

irq_32.c

Merge branch 'tj-percpu' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc into core/percpu

2009-02-24 21:52:45 +01:00

irq_64.c

x86: unify do_IRQ()

2009-02-09 12:16:05 +01:00

irq.c

x86: smarten /proc/interrupts output

2009-03-13 02:36:52 +01:00

irqinit_32.c

x86: UV, SGI RTC: add generic system vector

2009-03-04 20:25:37 +01:00

irqinit_64.c

x86: UV, SGI RTC: add generic system vector

2009-03-04 20:25:37 +01:00

k8.c

x86, gart: fix gart detection for Fam11h CPUs

2008-10-28 17:10:27 +01:00

kdebugfs.c

arch/x86/kernel/kdebugfs.c: introduce missing kfree

2008-09-10 14:03:49 +02:00

kgdb.c

x86, apic: remove genapic.h

2009-02-17 17:52:44 +01:00

kprobes.c

kprobes: check CONFIG_FREEZER instead of CONFIG_PM

2009-01-16 14:32:17 -05:00

kvm.c

x86, paravirt_ops: use unsigned long instead of u32 for alloc_p*() pfn args

2008-08-22 05:34:44 +02:00

kvmclock.c

x86: refactor x86_quirks support

2009-02-23 00:08:11 +01:00

ldt.c

x86: ldt.c fix style problems

2009-01-02 17:46:24 +01:00

machine_kexec_32.c

x86, kexec: fix kexec x86 coding style

2009-03-10 18:13:25 -07:00

machine_kexec_64.c

x86, kexec: x86_64: add kexec jump support for x86_64

2009-03-10 18:13:25 -07:00

Makefile

x86: UV, SGI RTC: add UV RTC clocksource/clockevents

2009-03-04 20:25:38 +01:00

mca_32.c

x86: refactor x86_quirks support

2009-02-23 00:08:11 +01:00

mfgpt_32.c

trivial: fix then -> than typos in comments and documentation

2009-01-06 11:28:06 +01:00

microcode_amd.c

x86: fix warning in arch/x86/kernel/microcode_amd.c

2008-12-19 01:31:54 +01:00

microcode_core.c

Merge branches 'x86/apic', 'x86/cleanups', 'x86/cpufeature', 'x86/crashdump', 'x86/debug', 'x86/defconfig', 'x86/detect-hyper', 'x86/doc', 'x86/dumpstack', 'x86/early-printk', 'x86/fpu', 'x86/idle', 'x86/io', 'x86/memory-corruption-check', 'x86/microcode', 'x86/mm', 'x86/mtrr', 'x86/nmi-watchdog', 'x86/pat2', 'x86/pci-ioapic-boot-irq-quirks', 'x86/ptrace', 'x86/quirks', 'x86/reboot', 'x86/setup-memory', 'x86/signal', 'x86/sparse-fixes', 'x86/time', 'x86/uv' and 'x86/xen' into x86/core

2008-12-23 16:27:23 +01:00

microcode_intel.c

x86: microcode_intel.c fix style problems

2009-01-12 11:22:40 +01:00

mmconf-fam10h_64.c

x86: move various CPU initialization objects into .cpuinit.rodata

2009-03-12 13:13:07 +01:00

module_32.c

x86: module_32.c fix style problems

2009-01-12 11:22:55 +01:00

module_64.c

x86: module_64.c fix style problems

2009-01-12 11:23:01 +01:00

mpparse.c

x86: clean up output resulting from update_mptable option

2009-03-13 02:37:19 +01:00

msr.c

x86: msr.c fix style problems

2009-01-12 11:22:50 +01:00

olpc.c

x86, olpc: fix model detection without OFW

2009-02-14 23:05:25 +01:00

paravirt_patch_32.c

x86/pvops: add a paravirt_ident functions to allow special patching

2009-01-30 14:51:44 -08:00

paravirt_patch_64.c

x86/pvops: add a paravirt_ident functions to allow special patching

2009-01-30 14:51:44 -08:00

paravirt-spinlocks.c

x86: remove byte locks

2009-01-20 17:14:28 +01:00

paravirt.c

x86: refactor x86_quirks support

2009-02-23 00:08:11 +01:00

pci-calgary_64.c

arch/x86/kernel/pci-calgary_64.c: change simple_strtol to simple_strtoul

2008-11-25 15:56:03 +01:00

pci-dma.c

PCI: struct device - replace bus_id with dev_name(), dev_set_name()

2009-01-07 11:12:23 -08:00

pci-gart_64.c

Documentation: move DMA-mapping.txt to Doc/PCI/

2009-01-29 18:19:29 -08:00

pci-nommu.c

x86: export pci-nommu's alloc_coherent

2008-09-25 11:02:25 +02:00

pci-swiotlb_64.c

Merge branch 'core/iommu' into core/urgent

2009-01-05 14:17:24 +01:00

pcspeaker.c

x86: use platform_device_register_simple()

2008-09-22 12:58:36 +02:00

pmtimer_64.c

x86: move pmtmr related declarations

2008-01-30 13:30:18 +01:00

probe_roms_32.c

x86: move mach-default/*.h files to asm/

2009-01-29 14:16:51 +01:00

process_32.c

x86: unify chunks of kernel/process*.c

2009-03-02 12:07:48 +01:00

process_64.c

x86: unify chunks of kernel/process*.c

2009-03-02 12:07:48 +01:00

process.c

x86: unify chunks of kernel/process*.c

2009-03-02 12:07:48 +01:00

ptrace.c

x86: ptrace, bts: fix an unreachable statement

2009-03-13 10:27:57 +01:00

pvclock.c

x86: pvclock: fix shadowed variable warning

2008-10-15 14:25:14 +02:00

quirks.c

x86: BUG to BUG_ON changes

2009-03-10 09:55:18 +01:00

reboot_fixups_32.c

x86: constify data in reboot.c

2008-05-25 08:58:30 +02:00

reboot.c

Merge branch 'linus' into core/percpu

2009-03-11 10:29:28 +01:00

relocate_kernel_32.S

x86, kexec: fix kexec x86 coding style

2009-03-10 18:13:25 -07:00

relocate_kernel_64.S

x86, kexec: x86_64: add kexec jump support for x86_64

2009-03-10 18:13:25 -07:00

rtc.c

rtc: use bcd2bin/bin2bcd

2008-10-20 08:52:41 -07:00

scx200_32.c

x86: fix sparse warning in kernel/scx200_32.c

2008-01-31 22:05:45 +01:00

setup_percpu.c

percpu: generalize embedding first chunk setup helper

2009-03-10 16:27:48 +09:00

setup.c

Merge branch 'linus' into core/percpu

2009-03-11 10:29:28 +01:00

signal.c

x86, signals: fix xine & firefox bustage

2009-03-03 09:03:12 +01:00

smp.c

x86, apic: remove genapic.h

2009-02-17 17:52:44 +01:00

smpboot.c

x86: remove smp_apply_quirks()/smp_checks()

2009-03-08 16:22:56 +01:00

stacktrace.c

x86: update copyrights

2009-01-31 04:21:18 +01:00

step.c

x86 ptrace: user-sets-TF nits

2008-07-16 12:15:17 -07:00

sys_i386_32.c

x86: Introducing asm/syscalls.h

2008-07-22 14:35:57 +02:00

sys_x86_64.c

Merge branches 'x86/alternatives', 'x86/cleanups', 'x86/commandline', 'x86/crashdump', 'x86/debug', 'x86/defconfig', 'x86/doc', 'x86/exports', 'x86/fpu', 'x86/gart', 'x86/idle', 'x86/mm', 'x86/mtrr', 'x86/nmi-watchdog', 'x86/oprofile', 'x86/paravirt', 'x86/reboot', 'x86/sparse-fixes', 'x86/tsc', 'x86/urgent' and 'x86/vmalloc' into x86-v28-for-linus-phase1

2008-10-06 18:17:07 +02:00

syscall_64.c

x86: Fix ASM_X86__ header guards

2008-10-22 22:55:23 -07:00

syscall_table_32.S

x86: pass in pt_regs pointer for syscalls that need it

2009-02-11 12:40:45 +01:00

tce_64.c

x86: Create clflush() inline, remove hardcoded wbinvd

2007-10-17 20:16:12 +02:00

test_nx.c

x86: Explicitly include required header files.

2008-04-17 17:41:15 +02:00

test_rodata.c

x86: include proper prototypes for rodata_test

2008-02-14 23:30:20 +01:00

time_32.c

x86: refactor x86_quirks support

2009-02-23 00:08:11 +01:00

time_64.c

x86: Add IRQF_TIMER to legacy x86 timer interrupt descriptors

2009-02-22 10:27:49 -08:00

tlb_uv.c

x86: UV: remove uv_flush_tlb_others() WARN_ON

2009-03-08 11:17:15 +01:00

tls.c

x86: Introducing asm/syscalls.h

2008-07-22 14:35:57 +02:00

tls.h

x86: x86 user_regset TLS

2008-01-30 13:31:52 +01:00

topology.c

x86: fix section mismatch warning in topology.c:arch_register_cpu

2008-02-19 16:18:30 +01:00

trampoline_32.S

x86: use _types.h headers in asm where available

2009-02-13 11:35:01 -08:00

trampoline_64.S

x86: use _types.h headers in asm where available

2009-02-13 11:35:01 -08:00

trampoline.c

x86: change static allocation of trampoline area

2008-12-08 13:49:45 +01:00

traps.c

x86-32: use non-lazy io bitmap context switching

2009-03-02 12:07:48 +01:00

tsc_sync.c

Merge branches 'x86/apic', 'x86/cleanups', 'x86/cpufeature', 'x86/crashdump', 'x86/debug', 'x86/defconfig', 'x86/detect-hyper', 'x86/doc', 'x86/dumpstack', 'x86/early-printk', 'x86/fpu', 'x86/idle', 'x86/io', 'x86/memory-corruption-check', 'x86/microcode', 'x86/mm', 'x86/mtrr', 'x86/nmi-watchdog', 'x86/pat2', 'x86/pci-ioapic-boot-irq-quirks', 'x86/ptrace', 'x86/quirks', 'x86/reboot', 'x86/setup-memory', 'x86/signal', 'x86/sparse-fixes', 'x86/time', 'x86/uv' and 'x86/xen' into x86/core

2008-12-23 16:27:23 +01:00

tsc.c

x86: replace CONFIG_X86_SMP with CONFIG_SMP

2009-01-29 14:17:00 +01:00

uv_irq.c

x86, apic: remove genapic.h

2009-02-17 17:52:44 +01:00

uv_sysfs.c

x86: Add sysfs entries for UV v4

2008-10-16 16:53:13 +02:00

uv_time.c

x86: UV, SGI RTC: fix uv_time.c for UP

2009-03-05 11:27:49 +01:00

verify_cpu_64.S

x86_64: move kernel

2007-10-11 11:17:24 +02:00

visws_quirks.c

x86: convert obsolete irq_desc_t typedef to struct irq_desc

2009-03-11 09:49:01 +01:00

vm86_32.c

x86: use regparm(3) for passed-in pt_regs pointer

2009-02-11 14:00:56 -08:00

vmi_32.c

x86, apic: remove genapic.h

2009-02-17 17:52:44 +01:00

vmiclock_32.c

Merge branches 'x86/acpi', 'x86/apic', 'x86/asm', 'x86/cleanups', 'x86/mm', 'x86/signal' and 'x86/urgent'; commit 'v2.6.29-rc6' into x86/core

2009-02-24 21:50:43 +01:00

vmlinux_32.lds.S

x86: use _types.h headers in asm where available

2009-02-13 11:35:01 -08:00

vmlinux_64.lds.S

x86, kexec: x86_64: add kexec jump support for x86_64

2009-03-10 18:13:25 -07:00

vmlinux.lds.S

…

vsmp_64.c

x86: don't compile vsmp_64 for 32bit

2009-02-26 06:40:06 +01:00

vsyscall_64.c

Merge branch 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2008-12-28 12:21:10 -08:00

x8664_ksyms_64.c

x86: convert pda ops to wrappers around x86 percpu accessors

2009-01-16 14:20:22 +01:00

xsave.c

x86: xsave.c: restore_user_xstate should be static

2008-12-30 13:31:41 -08:00