Commit 00632610 authored by Adrian Hunter's avatar Adrian Hunter Committed by Arnaldo Carvalho de Melo
Browse files

libperf evsel: Add perf_evsel__enable_thread() 



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

Signed-off-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Acked-by: default avatarIan 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: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 8586d274

tools/lib/perf/evsel.c

+15 −0
Original line number Diff line number Diff line
@@ -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;

tools/lib/perf/include/perf/evsel.h

+1 −0
Original line number Diff line number Diff line
@@ -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);