Messages in this thread Patch in this message | | | Date | Wed, 21 Dec 2011 02:24:14 -0800 | From | tip-bot for Stephane Eranian <> | Subject | [tip:perf/core] perf events: Add Intel x86 mapping for PERF_COUNT_HW_REF_CPU_CYCLES |
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Commit-ID: 9c1497ea591b25d491f8e795f90a1405100b75ef Gitweb: http://git.kernel.org/tip/9c1497ea591b25d491f8e795f90a1405100b75ef Author: Stephane Eranian <eranian@google.com> AuthorDate: Sun, 11 Dec 2011 00:28:53 +0100 Committer: Ingo Molnar <mingo@elte.hu> CommitDate: Wed, 21 Dec 2011 10:26:39 +0100
perf events: Add Intel x86 mapping for PERF_COUNT_HW_REF_CPU_CYCLES
Add event maps for Intel x86 processors (with architected PMU v2 or later).
On AMD, there is frequency scaling but no Turbo. There is no core cycle event not subject to frequency scaling, therefore we do not provide a mapping.
Signed-off-by: Stephane Eranian <eranian@google.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1323559734-3488-4-git-send-email-eranian@google.com Signed-off-by: Ingo Molnar <mingo@elte.hu> --- arch/x86/kernel/cpu/perf_event_intel.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c index 61f865f..cbfaaa2 100644 --- a/arch/x86/kernel/cpu/perf_event_intel.c +++ b/arch/x86/kernel/cpu/perf_event_intel.c @@ -28,6 +28,7 @@ static u64 intel_perfmon_event_map[PERF_COUNT_HW_MAX] __read_mostly = [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c4, [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c5, [PERF_COUNT_HW_BUS_CYCLES] = 0x013c, + [PERF_COUNT_HW_REF_CPU_CYCLES] = 0x0300, /* pseudo-encoding */ }; static struct event_constraint intel_core_event_constraints[] __read_mostly =
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