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| author | Mathieu Poirier <mathieu.poirier@linaro.org> | 2019-05-24 11:34:54 -0600 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-06-10 15:50:01 -0300 |
| commit | e5993c42e8bb8dd90eb81a05fb58d5aa243325dd (patch) | |
| tree | 7fffa0aef0c340e887eeb53576d7417257a87b64 | |
| parent | 1c839a5a4061bf4554430037b04a115efc9dd8a1 (diff) | |
| download | linux-e5993c42e8bb8dd90eb81a05fb58d5aa243325dd.tar.gz linux-e5993c42e8bb8dd90eb81a05fb58d5aa243325dd.tar.bz2 linux-e5993c42e8bb8dd90eb81a05fb58d5aa243325dd.zip | |
perf cs-etm: Configure SWITCH_EVENTS in CPU-wide mode
Ask the perf core to generate an event when processes are swapped in/out
of context. That way proper action can be taken by the decoding code
when faced with such event.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Tested-by: Leo Yan <leo.yan@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/20190524173508.29044-4-mathieu.poirier@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/arch/arm/util/cs-etm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/arch/arm/util/cs-etm.c b/tools/perf/arch/arm/util/cs-etm.c index be1e4f20affa..cc7f1cd23b14 100644 --- a/tools/perf/arch/arm/util/cs-etm.c +++ b/tools/perf/arch/arm/util/cs-etm.c @@ -257,6 +257,9 @@ static int cs_etm_recording_options(struct auxtrace_record *itr, ptr->evlist = evlist; ptr->snapshot_mode = opts->auxtrace_snapshot_mode; + if (perf_can_record_switch_events()) + opts->record_switch_events = true; + evlist__for_each_entry(evlist, evsel) { if (evsel->attr.type == cs_etm_pmu->type) { if (cs_etm_evsel) { |