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perf arm-spe: Assign kernel time to synthesized event

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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>
This commit is contained in:
Leo Yan 2021-05-19 15:19:37 +08:00 committed by Arnaldo Carvalho de Melo
parent 630519014c
commit 85498f756f
1 changed files with 1 additions and 1 deletions
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2
tools/perf/util/arm-spe.c
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@ -234,7 +234,7 @@ static void arm_spe_prep_sample(struct arm_spe *spe,
struct arm_spe_record *record = &speq->decoder->record; struct arm_spe_record *record = &speq->decoder->record;
if (!spe->timeless_decoding) if (!spe->timeless_decoding)
sample->time = speq->timestamp; sample->time = tsc_to_perf_time(record->timestamp, &spe->tc);
sample->ip = record->from_ip; sample->ip = record->from_ip;
sample->cpumode = arm_spe_cpumode(spe, sample->ip); sample->cpumode = arm_spe_cpumode(spe, sample->ip);