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libperf evsel: Add perf_evsel__enable_thread()

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Add perf_evsel__enable_thread() as a counterpart to
perf_evsel__enable_cpu(), to enable all events for a thread.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/20220506122601.367589-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter
2022-05-06 15:25:40 +03:00
committed by Arnaldo Carvalho de Melo
parent 8586d2744f
commit 00632610c2
2 changed files with 16 additions and 0 deletions
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15
tools/lib/perf/evsel.c
View File

@@ -360,6 +360,21 @@ int perf_evsel__enable_cpu(struct perf_evsel *evsel, int cpu_map_idx)
return perf_evsel__run_ioctl(evsel, PERF_EVENT_IOC_ENABLE, NULL, cpu_map_idx);
}
int perf_evsel__enable_thread(struct perf_evsel *evsel, int thread)
{
struct perf_cpu cpu __maybe_unused;
int idx;
int err;
perf_cpu_map__for_each_cpu(cpu, idx, evsel->cpus) {
err = perf_evsel__ioctl(evsel, PERF_EVENT_IOC_ENABLE, NULL, idx, thread);
if (err)
return err;
}
return 0;
}
int perf_evsel__enable(struct perf_evsel *evsel)
{
int i;

1
tools/lib/perf/include/perf/evsel.h
View File

@@ -36,6 +36,7 @@ LIBPERF_API int perf_evsel__read(struct perf_evsel *evsel, int cpu_map_idx, int
struct perf_counts_values *count);
LIBPERF_API int perf_evsel__enable(struct perf_evsel *evsel);
LIBPERF_API int perf_evsel__enable_cpu(struct perf_evsel *evsel, int cpu_map_idx);
LIBPERF_API int perf_evsel__enable_thread(struct perf_evsel *evsel, int thread);
LIBPERF_API int perf_evsel__disable(struct perf_evsel *evsel);
LIBPERF_API int perf_evsel__disable_cpu(struct perf_evsel *evsel, int cpu_map_idx);
LIBPERF_API struct perf_cpu_map *perf_evsel__cpus(struct perf_evsel *evsel);