Messages in this thread Patch in this message | | | From | Leo Yan <> | Subject | [PATCH v2 4/7] perf arm-spe: Convert event kernel time to counter value | Date | Sat, 3 Apr 2021 15:23:43 +0800 |
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When handle a perf event, Arm SPE decoder needs to decide if this perf event is earlier or later than the samples from Arm SPE trace data; to do comparision, it needs to use the same unit for the time.
This patch converts the event kernel time to arch timer's counter value, thus it can be used to compare with counter value contained in Arm SPE Timestamp packet.
Signed-off-by: Leo Yan <leo.yan@linaro.org> --- 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 69ce3483d1af..4cf558b0218a 100644 --- a/tools/perf/util/arm-spe.c +++ b/tools/perf/util/arm-spe.c @@ -669,7 +669,7 @@ static int arm_spe_process_event(struct perf_session *session, } if (sample->time && (sample->time != (u64) -1)) - timestamp = sample->time; + timestamp = perf_time_to_tsc(sample->time, &spe->tc); else timestamp = 0; -- 2.25.1
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