kernel-hacking-2024-linux-s.../arch/x86/kernel/cpu
Ingo Molnar 87b9cf4623 x86, perfcounters: read out MSR_CORE_PERF_GLOBAL_STATUS with counters disabled
Impact: make perfcounter NMI and IRQ sequence more robust

Make __smp_perf_counter_interrupt() a bit more conservative: first disable
all counters, then read out the status. Most invocations are because there
are real events, so there's no performance impact.

Code flow gets a bit simpler as well this way.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-12-08 15:56:42 +01:00
..
cpufreq [CPUFREQ] powernow-k8: ignore out-of-range PstateStatus value 2008-11-25 13:38:29 -05:00
mcheck Update email addresses. 2008-10-20 12:50:03 -07:00
mtrr 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
.gitignore Update .gitignore files for generated targets 2008-10-20 11:24:31 -07:00
addon_cpuid_features.c x86: use CONFIG_X86_SMP instead of CONFIG_SMP 2008-10-30 22:53:10 +01:00
amd.c x86: print out apic id in hex format 2008-10-16 16:53:09 +02:00
bugs.c x86: fdiv bug detection fix 2008-07-31 23:56:27 +02:00
bugs_64.c
centaur.c x86: move mtrr cpu cap setting early in early_init_xxxx 2008-09-06 17:50:55 +02:00
centaur_64.c x86: centaur_64.c remove duplicated setting of CONSTANT_TSC 2008-09-10 08:21:06 +02:00
cmpxchg.c x86: move cmpxchg fallbacks to a generic place 2008-08-18 16:05:47 +02:00
common.c performance counters: x86 support 2008-12-08 15:47:15 +01:00
cpu.h x86: remove duplicated get_model_name() calling 2008-09-06 14:09:12 +02:00
cyrix.c x86: move mtrr cpu cap setting early in early_init_xxxx 2008-09-06 17:50:55 +02:00
intel.c x86: print out apic id in hex format 2008-10-16 16:53:09 +02:00
intel_cacheinfo.c Merge branch 'linus' into x86/cpu 2008-08-15 16:16:15 +02:00
Makefile performance counters: x86 support 2008-12-08 15:47:15 +01:00
mkcapflags.pl x86: generate names for /proc/cpuinfo from <asm/cpufeature.h> 2008-08-27 19:23:22 -07:00
perf_counter.c x86, perfcounters: read out MSR_CORE_PERF_GLOBAL_STATUS with counters disabled 2008-12-08 15:56:42 +01:00
perfctr-watchdog.c ftrace: mark lapic_wd_event() notrace 2008-10-14 10:34:36 +02:00
powerflags.c x86: generate names for /proc/cpuinfo from <asm/cpufeature.h> 2008-08-27 19:23:22 -07:00
proc.c x86/proc: fix /proc/cpuinfo cpu offline bug 2008-10-22 14:29:37 +02:00
transmeta.c x86: move transmeta cap read to early_init_transmeta() 2008-09-14 14:09:14 +02:00
umc.c x86: remove cpu_vendor_dev 2008-09-04 21:09:45 +02:00