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| author | Ingo Molnar | 2011-04-30 09:14:54 +0200 |
|---|---|---|
| committer | Ingo Molnar | 2011-04-29 16:22:37 +0200 |
| commit | 301120396b766ae4480e52ece220516a1707822b (patch) | |
| tree | 06cef0743459a7ae86664e8518df98a64f44a05b | |
| parent | perf stat: Fail softly on unsupported events (diff) | |
| download | kernel-qcow2-linux-301120396b766ae4480e52ece220516a1707822b.tar.gz kernel-qcow2-linux-301120396b766ae4480e52ece220516a1707822b.tar.xz kernel-qcow2-linux-301120396b766ae4480e52ece220516a1707822b.zip | |
perf events, x86: Add Westmere stalled-cycles-frontend/backend events
Extend the Intel Westmere PMU driver with definitions for generic front-end and
back-end stall events.
( These are only approximations. )
Reported-by: David Ahern <dsahern@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/n/tip-7y40wib8n008io7hjpn1dsrm@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | arch/x86/kernel/cpu/perf_event_intel.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c index 7983b9a9533b..be8363adf4e2 100644 --- a/arch/x86/kernel/cpu/perf_event_intel.c +++ b/arch/x86/kernel/cpu/perf_event_intel.c @@ -1458,6 +1458,12 @@ static __init int intel_pmu_init(void) x86_pmu.enable_all = intel_pmu_nhm_enable_all; x86_pmu.pebs_constraints = intel_westmere_pebs_event_constraints; x86_pmu.extra_regs = intel_westmere_extra_regs; + + /* UOPS_ISSUED.STALLED_CYCLES */ + intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x180010e; + /* UOPS_EXECUTED.CORE_ACTIVE_CYCLES,c=1,i=1 */ + intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x1803fb1; + pr_cont("Westmere events, "); break; |