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| author |   Ravi Bangoria <ravi.bangoria@amd.com> | 2022-06-04 10:15:16 +0530 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-06-24 13:18:55 -0300 |
| commit | 2139f7424819818afc25fbfd0effda4babe235f6 (patch) | |
| tree | a0ca575eea30cf2361612202fbe69350f0eb2ce3 /tools/perf/builtin-inject.c | |
| parent | perf header: Store PMU caps in an array of strings (diff) | |
| download | linux-dev-2139f7424819818afc25fbfd0effda4babe235f6.tar.xz linux-dev-2139f7424819818afc25fbfd0effda4babe235f6.zip | |
perf header: Record non-CPU PMU capabilities
PMUs advertise their capabilities via sysfs attribute files but
the perf tool currently parses only core(CPU) or hybrid core PMU
capabilities. Add support of recording non-core PMU capabilities
int perf.data header.
Note that a newly proposed HEADER_PMU_CAPS is replacing existing
HEADER_HYBRID_CPU_PMU_CAPS. Special care is taken for hybrid core
PMUs by writing their capabilities first in the perf.data header
to make sure new perf.data file being read by old perf tool does
not break.
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ananth Narayan <ananth.narayan@amd.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Robert Richter <rrichter@amd.com>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Santosh Shukla <santosh.shukla@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: like.xu.linux@gmail.com
Cc: x86@kernel.org
Link: https://lore.kernel.org/r/20220604044519.594-6-ravi.bangoria@amd.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-inject.c')
| -rw-r--r-- | tools/perf/builtin-inject.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c index 42e2918fd1cc..b9022d408def 100644 --- a/tools/perf/builtin-inject.c +++ b/tools/perf/builtin-inject.c @@ -809,7 +809,7 @@ static bool keep_feat(int feat) case HEADER_CPU_PMU_CAPS: case HEADER_CLOCK_DATA: case HEADER_HYBRID_TOPOLOGY: - case HEADER_HYBRID_CPU_PMU_CAPS: + case HEADER_PMU_CAPS: return true; /* Information that can be updated */ case HEADER_BUILD_ID: |