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| author | Arnaldo Carvalho de Melo <acme@kernel.org> | 2023-11-07 14:03:31 +0530 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-11-10 08:31:13 -0300 |
| commit | dd678532f913c1a742f1a2add6adacfb7ae2b166 (patch) | |
| tree | 0ce37cbb002e26da31b62c850384d098402914cb /tools/perf/util/env.h | |
| parent | a399ee6773d6a0203f9bd764f8bd9d978878cef1 (diff) | |
| download | linux-stable-dd678532f913c1a742f1a2add6adacfb7ae2b166.tar.gz linux-stable-dd678532f913c1a742f1a2add6adacfb7ae2b166.tar.bz2 linux-stable-dd678532f913c1a742f1a2add6adacfb7ae2b166.zip | |
perf header: Additional note on AMD IBS for max_precise pmu cap
x86 core PMU exposes supported maximum precision level via max_precise
PMU capability. Although, AMD core PMU does not support precise mode,
certain core PMU events with precise_ip > 0 are allowed and forwarded to
IBS OP PMU.
Display a note about this in the 'perf report' header output and
document the details in the perf-list man page.
Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ananth Narayan <ananth.narayan@amd.com>
Cc: Changbin Du <changbin.du@huawei.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: K Prateek Nayak <kprateek.nayak@amd.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ming Wang <wangming01@loongson.cn>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ross Zwisler <zwisler@chromium.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Santosh Shukla <santosh.shukla@amd.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Link: https://lore.kernel.org/r/20231107083331.901-2-ravi.bangoria@amd.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/env.h')
| -rw-r--r-- | tools/perf/util/env.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/env.h b/tools/perf/util/env.h index 48d7f8759a2a..94596ff124d5 100644 --- a/tools/perf/util/env.h +++ b/tools/perf/util/env.h @@ -179,4 +179,6 @@ struct btf_node *perf_env__find_btf(struct perf_env *env, __u32 btf_id); int perf_env__numa_node(struct perf_env *env, struct perf_cpu cpu); char *perf_env__find_pmu_cap(struct perf_env *env, const char *pmu_name, const char *cap); + +bool perf_env__has_pmu_mapping(struct perf_env *env, const char *pmu_name); #endif /* __PERF_ENV_H */ |