diff options
| author | Leo Yan <leo.yan@arm.com> | 2025-03-04 11:12:38 +0000 |
|---|---|---|
| committer | Namhyung Kim <namhyung@kernel.org> | 2025-03-05 09:13:20 -0800 |
| commit | 4a53a67e0eeed768515840f8e3c36dc399663e2a (patch) | |
| tree | e1f6b7361aed47b1845490096a63981107cd91bf | |
| parent | 5c1b1583966b19eb896e7c257c2f4810d35111ea (diff) | |
perf arm-spe: Set sample flags with supplement info
Based on the supplement information in the record, this commit sets the
sample flags for conditional branch, function call, return. It also
sets events in flags, such as mispredict, not taken, and in transaction.
Reviewed-by: Ian Rogers <irogers@google.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Signed-off-by: Leo Yan <leo.yan@arm.com>
Link: https://lore.kernel.org/r/20250304111240.3378214-11-leo.yan@arm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
| -rw-r--r-- | tools/perf/util/arm-spe.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c index 0e8e05c87fd7..daecf9e1017a 100644 --- a/tools/perf/util/arm-spe.c +++ b/tools/perf/util/arm-spe.c @@ -484,6 +484,26 @@ static void arm_spe__sample_flags(struct arm_spe_queue *speq) if (record->type & ARM_SPE_BRANCH_MISS) speq->flags |= PERF_IP_FLAG_BRANCH_MISS; + + if (record->type & ARM_SPE_BRANCH_NOT_TAKEN) + speq->flags |= PERF_IP_FLAG_NOT_TAKEN; + + if (record->type & ARM_SPE_IN_TXN) + speq->flags |= PERF_IP_FLAG_IN_TX; + + if (record->op & ARM_SPE_OP_BR_COND) + speq->flags |= PERF_IP_FLAG_CONDITIONAL; + + if (record->op & ARM_SPE_OP_BR_CR_BL) + speq->flags |= PERF_IP_FLAG_CALL; + else if (record->op & ARM_SPE_OP_BR_CR_RET) + speq->flags |= PERF_IP_FLAG_RETURN; + /* + * Indirect branch instruction without link (e.g. BR), + * take it as a function return. + */ + else if (record->op & ARM_SPE_OP_BR_INDIRECT) + speq->flags |= PERF_IP_FLAG_RETURN; } } |