Re: [PATCH 1/8] perf arm-spe: Enable sample type PERF_SAMPLE_DATA_SRC

From: Arnaldo Carvalho de Melo
Date: Fri Jan 22 2021 - 07:53:35 EST


Em Tue, Jan 19, 2021 at 04:46:51PM +0200, James Clark escreveu:
> From: Leo Yan <leo.yan@xxxxxxxxxx>
>
> This patch is to enable sample type PERF_SAMPLE_DATA_SRC for Arm SPE in
> the perf data, when output the tracing data, it tells tools that it
> contains data source in the memory event.
>
> Signed-off-by: Leo Yan <leo.yan@xxxxxxxxxx>
> Signed-off-by: James Clark <james.clark@xxxxxxx>

I see two Signed-off-by, ok, any Reviewed-by?

- Arnaldo

> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> Cc: Ingo Molnar <mingo@xxxxxxxxxx>
> Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
> Cc: Mark Rutland <mark.rutland@xxxxxxx>
> Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
> Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
> Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
> Cc: John Garry <john.garry@xxxxxxxxxx>
> Cc: Will Deacon <will@xxxxxxxxxx>
> Cc: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
> Cc: Al Grant <al.grant@xxxxxxx>
> Cc: Andre Przywara <andre.przywara@xxxxxxx>
> Cc: Wei Li <liwei391@xxxxxxxxxx>
> Cc: Tan Xiaojun <tanxiaojun@xxxxxxxxxx>
> Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> ---
> tools/perf/util/arm-spe.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c
> index 8901a1656a41..b134516e890b 100644
> --- a/tools/perf/util/arm-spe.c
> +++ b/tools/perf/util/arm-spe.c
> @@ -803,7 +803,7 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
> attr.type = PERF_TYPE_HARDWARE;
> attr.sample_type = evsel->core.attr.sample_type & PERF_SAMPLE_MASK;
> attr.sample_type |= PERF_SAMPLE_IP | PERF_SAMPLE_TID |
> - PERF_SAMPLE_PERIOD;
> + PERF_SAMPLE_PERIOD | PERF_SAMPLE_DATA_SRC;
> if (spe->timeless_decoding)
> attr.sample_type &= ~(u64)PERF_SAMPLE_TIME;
> else
> --
> 2.28.0
>

--

- Arnaldo