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95492e4646
kernel-ark/arch/x86_64/kernel
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Ingo Molnar 95492e4646 [PATCH] x86: rewrite SMP TSC sync code 
make the TSC synchronization code more robust, and unify it between x86_64 and
i386.

The biggest change is the removal of the 'fix up TSCs' code on x86_64 and
i386, in some rare cases it was /causing/ time-warps on SMP systems.

The new code only checks for TSC asynchronity - and if it can prove a
time-warp (if it can observe the TSC going backwards when going from one CPU
to another within a critical section), then the TSC clock-source is turned
off.

The TSC synchronization-checking code also got moved into a separate file.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-16 08:13:57 -08:00
..
acpi [PATCH] x86-64: Remove fastcall references in x86_64 code 2007-02-13 13:26:22 +01:00
cpufreq [CPUFREQ] select consistently 2006-12-22 22:45:41 -05:00
aperture.c [PATCH] x86: Allow disabling early pci scans with pci=noearly or disallowing conf1 2006-09-26 10:52:41 +02:00
apic.c [PATCH] x86-64: Remove unused GET_APIC_VERSION call from clear_local_APIC 2006-12-07 02:14:11 +01:00
asm-offsets.c
audit.c [PATCH] audit: AUDIT_PERM support 2006-09-11 13:32:30 -04:00
crash_dump.c
crash.c [PATCH] Kexec / Kdump: Unify elf note code 2006-12-07 08:39:46 -08:00
e820.c [PATCH] x86-64: Fix fake numa for x86_64 machines with big IO hole 2007-02-13 13:26:22 +01:00
early_printk.c [PATCH] x86_64: fix 'earlyprintk=...,keep' regression 2006-11-28 10:58:21 -08:00
early-quirks.c ACPICA: Remove duplicate table definitions (non-conflicting), cont 2007-02-02 21:14:29 -05:00
entry.S Remove stack unwinder for now 2006-12-15 08:47:51 -08:00
functionlist
genapic_cluster.c [PATCH] x86_64 irq: Allocate a vector across all cpus for genapic_flat. 2006-10-08 12:24:02 -07:00
genapic_flat.c [PATCH] x86-64: Put more than one cpu in TARGET_CPUS 2006-10-21 18:37:02 +02:00
genapic.c ACPICA: use new ACPI headers. 2007-02-02 21:14:28 -05:00
head64.c [PATCH] Dynamic kernel command-line: fixups 2007-02-12 09:48:39 -08:00
head.S [PATCH] x86-64: x86_64 - Fix FS/GS registers for VT execution 2007-02-13 13:26:24 +01:00
i387.c [PATCH] x86-64: use BUILD_BUG_ON in FPU code 2006-12-07 02:14:01 +01:00
i8259.c [PATCH] x86_64: interrupt array size should be aligned to NR_VECTORS 2006-12-07 02:14:12 +01:00
init_task.c [PATCH] nsproxy: move init_nsproxy into kernel/nsproxy.c 2006-10-02 07:57:20 -07:00
io_apic.c [PATCH] x86-64: update IO-APIC dest field to 8-bit for xAPIC 2007-02-13 13:26:25 +01:00
ioport.c [PATCH] x86-64: Use constant instead of raw number in x86_64 ioperm.c 2007-02-13 13:26:22 +01:00
irq.c [PATCH] x86-64: survive having no irq mapping for a vector 2007-02-13 13:26:25 +01:00
k8.c
kprobes.c [PATCH] kprobes: enable booster on the preemptible kernel 2006-12-07 08:39:38 -08:00
ldt.c
machine_kexec.c [PATCH] Avoid overwriting the current pgd (V4, x86_64) 2006-09-26 10:52:38 +02:00
Makefile [PATCH] x86: rewrite SMP TSC sync code 2007-02-16 08:13:57 -08:00
mce_amd.c [PATCH] x86-64: Allow to run a program when a machine check event is detected 2007-02-13 13:26:23 +01:00
mce_intel.c [PATCH] x86: Add a cumulative thermal throttle event counter. 2006-09-26 10:52:42 +02:00
mce.c [PATCH] x86-64: Allow to run a program when a machine check event is detected 2007-02-13 13:26:23 +01:00
module.c [PATCH] Generic BUG for x86-64 2006-12-08 08:28:39 -08:00
mpparse.c ACPICA: use new ACPI headers. 2007-02-02 21:14:28 -05:00
nmi.c [PATCH] x86: Enable NMI watchdog for AMD Family 0x10 CPUs 2007-02-13 13:26:25 +01:00
pci-calgary.c [PATCH] x86-64: robustify bad_dma_address handling 2007-02-13 13:26:24 +01:00
pci-dma.c [PATCH] x86-64: improved iommu documentation 2007-02-13 13:26:21 +01:00
pci-gart.c [PATCH] x86-64: Fix off by one error in IOMMU boundary checking 2007-02-13 13:26:24 +01:00
pci-nommu.c [PATCH] remove superflous BUG_ON's in nommu and gart 2006-09-26 10:52:32 +02:00
pci-swiotlb.c [IA64] swiotlb cleanup 2007-02-05 18:51:25 -08:00
pmtimer.c
process.c [PATCH] sched: fix bad missed wakeups in the i386, x86_64, ia64, ACPI and APM idle code 2006-12-22 08:55:51 -08:00
ptrace.c [PATCH] x86-64: Check return value of putreg in PTRACE_SETREGS 2007-02-13 13:26:24 +01:00
reboot.c
relocate_kernel.S [PATCH] Avoid overwriting the current pgd (V4, x86_64) 2006-09-26 10:52:38 +02:00
setup64.c [PATCH] x86-64: Unexport __supported_pte_mask 2007-02-13 13:26:24 +01:00
setup.c [PATCH] x86: Unify pcspeaker platform device code between i386/x86-64 2007-02-13 13:26:26 +01:00
signal.c [PATCH] Remove all traces of signal number conversion 2006-09-26 10:52:41 +02:00
smp.c Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2006-12-07 08:59:11 -08:00
smpboot.c [PATCH] x86: rewrite SMP TSC sync code 2007-02-16 08:13:57 -08:00
stacktrace.c [PATCH] x86-64: do not always end the stack trace with ULONG_MAX 2007-02-13 13:26:21 +01:00
suspend_asm.S [PATCH] Change the name of pagedir_nosave 2006-09-26 08:49:01 -07:00
suspend.c
sys_x86_64.c [PATCH] namespaces: utsname: switch to using uts namespaces 2006-10-02 07:57:21 -07:00
syscall.c
tce.c Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
time.c [PATCH] x86: rewrite SMP TSC sync code 2007-02-16 08:13:57 -08:00
trampoline.S [PATCH] Fix gdt table size in trampoline.S 2006-09-26 10:52:32 +02:00
traps.c [PATCH] x86_64: Fix dump_trace() 2007-01-03 08:49:59 -08:00
tsc_sync.c [PATCH] x86: rewrite SMP TSC sync code 2007-02-16 08:13:57 -08:00
vmlinux.lds.S [PATCH] disable init/initramfs.c: architectures 2007-02-11 10:51:25 -08:00
vsmp.c [PATCH] Fix build breakage with CONFIG_X86_VSMP 2006-10-12 12:25:27 -07:00
vsyscall.c [PATCH] sysctl: remove insert_at_head from register_sysctl 2007-02-14 08:09:59 -08:00
x8664_ksyms.c [PATCH] x86-64: Remove fastcall references in x86_64 code 2007-02-13 13:26:22 +01:00