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| author | Leo Yan <leo.yan@linaro.org> | 2021-05-19 15:19:37 +0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-07-01 16:14:36 -0300 |
| commit | 85498f756f015e3ae89dbe0c94480ad76929752a (patch) | |
| tree | 82d922b02a2fad658849f09dd1e42205cb9beafa /tools/perf | |
| parent | 630519014c7b5abc544d93e07ad6e9328098bf68 (diff) | |
| download | linux-85498f756f015e3ae89dbe0c94480ad76929752a.tar.bz2 | |
perf arm-spe: Assign kernel time to synthesized event
In current code, it assigns the arch timer counter to the synthesized
samples Arm SPE trace, thus the samples don't contain the kernel time
but only contain the raw counter value.
To fix the issue, this patch converts the timer counter to kernel time
and assigns it to sample timestamp.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: James Clark <james.clark@arm.com>
Tested-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Al Grant <Al.Grant@arm.com>
Cc: Dave Martin <Dave.Martin@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20210519071939.1598923-4-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/arm-spe.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c index ff8b52e6d475..da379328442c 100644 --- a/tools/perf/util/arm-spe.c +++ b/tools/perf/util/arm-spe.c @@ -234,7 +234,7 @@ static void arm_spe_prep_sample(struct arm_spe *spe, struct arm_spe_record *record = &speq->decoder->record; if (!spe->timeless_decoding) - sample->time = speq->timestamp; + sample->time = tsc_to_perf_time(record->timestamp, &spe->tc); sample->ip = record->from_ip; sample->cpumode = arm_spe_cpumode(spe, sample->ip); |