From 4a53a67e0eeed768515840f8e3c36dc399663e2a Mon Sep 17 00:00:00 2001 From: Leo Yan Date: Tue, 4 Mar 2025 11:12:38 +0000 Subject: [PATCH] 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 Reviewed-by: James Clark Signed-off-by: Leo Yan Link: https://lore.kernel.org/r/20250304111240.3378214-11-leo.yan@arm.com Signed-off-by: Namhyung Kim --- tools/perf/util/arm-spe.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c index 0e8e05c87fd7d..daecf9e1017a9 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; } } -- 2.47.3