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| author | Peter Zijlstra <peterz@infradead.org> | 2010-03-26 16:08:44 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-03-26 17:47:24 +0300 |
| commit | 11164cd4f6dab326a88bdf27f2f8f7c11977e91a (patch) | |
| tree | 260a9f48f66cce8c5f4e23111ba6be8af6cfa578 /arch/x86/kernel/cpu/perf_event.c | |
| parent | ea8e61b7bbc4a2faef77db34eb2db2a2c2372ff6 (diff) | |
| download | linux-11164cd4f6dab326a88bdf27f2f8f7c11977e91a.tar.xz | |
perf, x86: Add Nehelem PMU programming errata workaround
Implement the workaround for Intel Errata AAK100 and AAP53.
Also, remove the Core-i7 name for Nehalem events since there are
also Westmere based i7 chips.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
LKML-Reference: <1269608924.12097.147.camel@laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/cpu/perf_event.c')
| -rw-r--r-- | arch/x86/kernel/cpu/perf_event.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c index f571f514de2a..6f66d4a845ff 100644 --- a/arch/x86/kernel/cpu/perf_event.c +++ b/arch/x86/kernel/cpu/perf_event.c @@ -184,7 +184,7 @@ struct x86_pmu { int version; int (*handle_irq)(struct pt_regs *); void (*disable_all)(void); - void (*enable_all)(void); + void (*enable_all)(int added); void (*enable)(struct perf_event *); void (*disable)(struct perf_event *); int (*hw_config)(struct perf_event_attr *attr, struct hw_perf_event *hwc); @@ -576,7 +576,7 @@ void hw_perf_disable(void) x86_pmu.disable_all(); } -static void x86_pmu_enable_all(void) +static void x86_pmu_enable_all(int added) { struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); int idx; @@ -784,7 +784,7 @@ void hw_perf_enable(void) struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); struct perf_event *event; struct hw_perf_event *hwc; - int i; + int i, added = cpuc->n_added; if (!x86_pmu_initialized()) return; @@ -836,7 +836,7 @@ void hw_perf_enable(void) cpuc->enabled = 1; barrier(); - x86_pmu.enable_all(); + x86_pmu.enable_all(added); } static inline void __x86_pmu_enable_event(struct hw_perf_event *hwc) |