linux-kernel - Re: [PATCH V2 02/23] libperf evsel: Add perf_evsel__enable

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Message-ID: <YnqepF/2T0VDrkJu@kernel.org>
Date:   Tue, 10 May 2022 14:19:32 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Adrian Hunter <adrian.hunter@...el.com>
Cc:     Jiri Olsa <jolsa@...hat.com>, Ian Rogers <irogers@...gle.com>,
        Alexey Bayduraev <alexey.v.bayduraev@...ux.intel.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Leo Yan <leo.yan@...aro.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2 02/23] libperf evsel: Add perf_evsel__enable_thread()

Em Fri, May 06, 2022 at 03:25:40PM +0300, Adrian Hunter escreveu:
> Add perf_evsel__enable_thread() as a counterpart to
> perf_evsel__enable_cpu(), to enable all events for a thread.

Thanks, applied.

- Arnaldo

 
> Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
> ---
>  tools/lib/perf/evsel.c              | 15 +++++++++++++++
>  tools/lib/perf/include/perf/evsel.h |  1 +
>  2 files changed, 16 insertions(+)
> 
> diff --git a/tools/lib/perf/evsel.c b/tools/lib/perf/evsel.c
> index 20ae9f5f8b30..c1d58673f6ef 100644
> --- a/tools/lib/perf/evsel.c
> +++ b/tools/lib/perf/evsel.c
> @@ -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;
> diff --git a/tools/lib/perf/include/perf/evsel.h b/tools/lib/perf/include/perf/evsel.h
> index 2a9516b42d15..699c0ed97d34 100644
> --- a/tools/lib/perf/include/perf/evsel.h
> +++ b/tools/lib/perf/include/perf/evsel.h
> @@ -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);
> -- 
> 2.25.1

-- 

- Arnaldo