kevin/linux
1
Fork 0
Code
95492e4646
linux/arch/i386/kernel
History
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 ACPICA: Allow ACPI id to be u32 instead of u8. 2007-02-02 21:14:31 -05:00
cpu [PATCH] i386: fix 32-bit ioctls on x64_32 2007-02-13 13:26:26 +01:00
.gitignore
alternative.c [PATCH] paravirt: Patch inline replacements for paravirt intercepts 2006-12-07 02:14:08 +01:00
apic.c [PATCH] i386: add idle notifier 2007-02-13 13:26:22 +01:00
apm.c [PATCH] i386: use GTOD persistent clock support 2007-02-16 08:13:57 -08:00
asm-offsets.c [PATCH] i386: Convert i386 PDA code to use %fs 2007-02-13 13:26:20 +01:00
bootflag.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
cpuid.c [PATCH] i386: use smp_call_function_single() 2007-02-13 13:26:23 +01:00
crash_dump.c
crash.c [PATCH] Kexec / Kdump: Unify elf note code 2006-12-07 08:39:46 -08:00
doublefault.c [PATCH] i386: cpu_relax() in crash.c and doublefault.c 2006-06-25 10:00:55 -07:00
e820.c [PATCH] i386: romsignature/checksum cleanup 2007-02-13 13:26:22 +01:00
early_printk.c
efi_stub.S [PATCH] x86: remove unused include from efi_stub.S 2006-09-26 08:48:56 -07:00
efi.c [PATCH] EFI x86: pass firmware call parameters on the stack 2007-02-04 10:27:10 -08:00
entry.S [PATCH] i386: entry.S END/ENDPROC annotations 2007-02-13 13:26:24 +01:00
head.S [PATCH] i386: Rename cpu_gdt_descr and remove extern declaration from smpboot.c 2007-02-13 13:26:26 +01:00
hpet.c [PATCH] hpet: trivial __iomem annotations 2007-02-09 09:14:07 -08:00
i386_ksyms.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
i387.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
i8237.c [PATCH] mmc (mainly): add "or later" clause to licence statement. 2006-10-01 00:39:23 -07:00
i8253.c [PATCH] i386 Time: Avoid PIT SMP lockups 2006-10-17 08:18:42 -07:00
i8259.c [PATCH] paravirt: header and stubs for paravirtualisation 2006-12-07 02:14:07 +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] Add irq flag to disable balancing for an interrupt 2007-02-16 08:13:56 -08:00
ioport.c [PATCH] i386: use thread_info flags for debug regs and IO bitmaps 2006-07-09 18:47:12 -07:00
irq.c [PATCH] i386: add idle notifier 2007-02-13 13:26:22 +01:00
kprobes.c [PATCH] i386: Kprobe rpl fix 2007-02-13 13:26:21 +01:00
ldt.c [PATCH] i386: remove default_ldt, and simplify ldt-setting. 2006-12-07 02:14:01 +01:00
machine_kexec.c [PATCH] i386: Avoid overwriting the current pgd (V4, i386) 2006-09-26 10:52:38 +02:00
Makefile [PATCH] x86: rewrite SMP TSC sync code 2007-02-16 08:13:57 -08:00
mca.c [PATCH] i386: replace kmalloc+memset with kzalloc 2006-12-07 02:14:19 +01:00
microcode.c [PATCH] i386: Fix warning in microcode.c 2007-02-13 13:26:25 +01:00
module.c [PATCH] Generic BUG for i386 2006-12-08 08:28:39 -08:00
mpparse.c ACPICA: use new ACPI headers. 2007-02-02 21:14:28 -05:00
msr.c [PATCH] i386: use smp_call_function_single() 2007-02-13 13:26:23 +01:00
nmi.c [PATCH] x86: Enable NMI watchdog for AMD Family 0x10 CPUs 2007-02-13 13:26:25 +01:00
numaq.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
paravirt.c [PATCH] i386: paravirt unhandled fallthrough 2007-02-13 13:26:26 +01:00
pci-dma.c [PATCH] i386: replace kmalloc+memset with kzalloc 2006-12-07 02:14:19 +01:00
pcspeaker.c [PATCH] x86: Unify pcspeaker platform device code between i386/x86-64 2007-02-13 13:26:26 +01:00
process.c [PATCH] i386: add idle notifier 2007-02-13 13:26:22 +01:00
ptrace.c [PATCH] i386: Convert i386 PDA code to use %fs 2007-02-13 13:26:20 +01:00
quirks.c [PATCH] x86: Fix verify_quirk_intel_irqbalance() 2006-12-09 21:33:35 +01:00
reboot_fixups.c [PATCH] i386: Remove printk about reboot fixups at reboot 2006-04-09 11:53:53 -07:00
reboot.c [PATCH] arch/i386/kernel/reboot.c should #include <linux/reboot.h> 2006-12-07 08:39:44 -08:00
relocate_kernel.S [PATCH] i386: Avoid overwriting the current pgd (V4, i386) 2006-09-26 10:52:38 +02:00
scx200.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
setup.c [PATCH] x86: Unify pcspeaker platform device code between i386/x86-64 2007-02-13 13:26:26 +01:00
sigframe.h
signal.c [PATCH] x86: Don't require the vDSO for handling a.out signals 2007-02-13 13:26:26 +01:00
smp.c [PATCH] i386: Small cleanup to TLB flush code 2007-02-13 13:26:23 +01:00
smpboot.c [PATCH] x86: rewrite SMP TSC sync code 2007-02-16 08:13:57 -08:00
srat.c ACPI: build fix for IBM x440 - CONFIG_X86_SUMMIT 2007-02-02 21:47:33 -05:00
summit.c
sys_i386.c [PATCH] provide kernel_execve on all architectures 2006-10-02 07:57:23 -07:00
syscall_table.S [PATCH] epoll_pwait() 2006-10-11 11:14:21 -07:00
sysenter.c [PATCH] i386: Fix broken CONFIG_COMPAT_VDSO on i386 2007-02-13 13:26:26 +01:00
time_hpet.c [PATCH] i386: Add iounmap in error paths in hpet code 2006-12-07 02:14:02 +01:00
time.c [PATCH] i386: use GTOD persistent clock support 2007-02-16 08:13:57 -08:00
topology.c [PATCH] i386: change the 'no_control' field to 'hotpluggable' in the struct cpu 2006-12-07 02:14:10 +01:00
trampoline.S [PATCH] i386: fix modpost warning in SMP trampoline code 2007-01-05 23:55:23 -08:00
traps.c [PATCH] i386: add option to show more code in oops reports 2007-02-13 13:26:25 +01:00
tsc_sync.c [PATCH] x86: rewrite SMP TSC sync code 2007-02-16 08:13:57 -08:00
tsc.c [PATCH] x86: rewrite SMP TSC sync code 2007-02-16 08:13:57 -08:00
vm86.c [PATCH] i386: Convert i386 PDA code to use %fs 2007-02-13 13:26:20 +01:00
vmi.c [PATCH] i386: vMI timer patches 2007-02-13 13:26:21 +01:00
vmitime.c [PATCH] i386: Vmi timer race 2007-02-13 13:26:21 +01:00
vmlinux.lds.S [PATCH] i386: move startup_32() in text.head section 2007-02-13 13:26:22 +01:00
vsyscall-int80.S
vsyscall-note.S
vsyscall-sigreturn.S
vsyscall-sysenter.S [PATCH] vdso: randomize the i386 vDSO by moving it into a vma 2006-06-27 17:32:38 -07:00
vsyscall.lds.S [PATCH] vDSO hash-style fix 2006-07-31 13:28:43 -07:00
vsyscall.S