diff options
| author | Yan, Zheng <zheng.z.yan@intel.com> | 2015-05-06 15:33:51 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-06-07 10:08:54 -0400 |
| commit | 9c964efa4330a58520783effe9847f15126fef1f (patch) | |
| tree | ce0ab6b36e279c9038806fc4bd05d6cd3cf46af1 /arch/x86/kernel/cpu/perf_event.h | |
| parent | 3569c0d7c5440d6fd06b10e1ef9614588a049bc7 (diff) | |
perf/x86/intel: Drain the PEBS buffer during context switches
Flush the PEBS buffer during context switches if PEBS interrupt threshold
is larger than one. This allows perf to supply TID for sample outputs.
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Signed-off-by: Kan Liang <kan.liang@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: acme@infradead.org
Cc: eranian@google.com
Link: http://lkml.kernel.org/r/1430940834-8964-6-git-send-email-kan.liang@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/cpu/perf_event.h')
| -rw-r--r-- | arch/x86/kernel/cpu/perf_event.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/perf_event.h b/arch/x86/kernel/cpu/perf_event.h index a73dfc97226b..74089bcb6d74 100644 --- a/arch/x86/kernel/cpu/perf_event.h +++ b/arch/x86/kernel/cpu/perf_event.h | |||
| @@ -92,9 +92,11 @@ struct amd_nb { | |||
| 92 | /* | 92 | /* |
| 93 | * Flags PEBS can handle without an PMI. | 93 | * Flags PEBS can handle without an PMI. |
| 94 | * | 94 | * |
| 95 | * TID can only be handled by flushing at context switch. | ||
| 96 | * | ||
| 95 | */ | 97 | */ |
| 96 | #define PEBS_FREERUNNING_FLAGS \ | 98 | #define PEBS_FREERUNNING_FLAGS \ |
| 97 | (PERF_SAMPLE_IP | PERF_SAMPLE_ADDR | \ | 99 | (PERF_SAMPLE_IP | PERF_SAMPLE_TID | PERF_SAMPLE_ADDR | \ |
| 98 | PERF_SAMPLE_ID | PERF_SAMPLE_CPU | PERF_SAMPLE_STREAM_ID | \ | 100 | PERF_SAMPLE_ID | PERF_SAMPLE_CPU | PERF_SAMPLE_STREAM_ID | \ |
| 99 | PERF_SAMPLE_DATA_SRC | PERF_SAMPLE_IDENTIFIER | \ | 101 | PERF_SAMPLE_DATA_SRC | PERF_SAMPLE_IDENTIFIER | \ |
| 100 | PERF_SAMPLE_TRANSACTION) | 102 | PERF_SAMPLE_TRANSACTION) |
| @@ -877,6 +879,8 @@ void intel_pmu_pebs_enable_all(void); | |||
| 877 | 879 | ||
| 878 | void intel_pmu_pebs_disable_all(void); | 880 | void intel_pmu_pebs_disable_all(void); |
| 879 | 881 | ||
| 882 | void intel_pmu_pebs_sched_task(struct perf_event_context *ctx, bool sched_in); | ||
| 883 | |||
| 880 | void intel_ds_init(void); | 884 | void intel_ds_init(void); |
| 881 | 885 | ||
| 882 | void intel_pmu_lbr_sched_task(struct perf_event_context *ctx, bool sched_in); | 886 | void intel_pmu_lbr_sched_task(struct perf_event_context *ctx, bool sched_in); |