[PATCH 6.12 0433/1276] perf arm-spe: Use ARM_SPE_OP_BRANCH_ERET when synthesizing branches

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

6.12-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Graham Woodward <graham.woodward@arm.com>

[ Upstream commit c1b67c85108f99af0a80aa9e59a2b94ad95428d7 ]

Instead of checking the type for just branch misses, we can instead
check for the OP_BRANCH_ERET and synthesise branches as well as
branch misses.

Signed-off-by: Graham Woodward <graham.woodward@arm.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Tested-by: Leo Yan <leo.yan@arm.com>
Cc: nd@arm.com
Cc: mike.leach@linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20241025143009.25419-3-graham.woodward@arm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Stable-dep-of: 059e9100d82a ("perf event: Fix size of synthesized sample with branch stacks")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/perf/util/arm-spe.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c
index fcacdd87c0d2b4..ce34cc5a2e7163 100644
--- a/tools/perf/util/arm-spe.c
+++ b/tools/perf/util/arm-spe.c
@@ -71,7 +71,7 @@ struct arm_spe {
 	u64				llc_access_id;
 	u64				tlb_miss_id;
 	u64				tlb_access_id;
-	u64				branch_miss_id;
+	u64				branch_id;
 	u64				remote_access_id;
 	u64				memory_id;
 	u64				instructions_id;
@@ -668,8 +668,8 @@ static int arm_spe_sample(struct arm_spe_queue *speq)
 		}
 	}
 
-	if (spe->sample_branch && (record->type & ARM_SPE_BRANCH_MISS)) {
-		err = arm_spe__synth_branch_sample(speq, spe->branch_miss_id);
+	if (spe->sample_branch && (record->op & ARM_SPE_OP_BRANCH_ERET)) {
+		err = arm_spe__synth_branch_sample(speq, spe->branch_id);
 		if (err)
 			return err;
 	}
@@ -1269,12 +1269,12 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
 	if (spe->synth_opts.branches) {
 		spe->sample_branch = true;
 
-		/* Branch miss */
+		/* Branch */
 		err = perf_session__deliver_synth_attr_event(session, &attr, id);
 		if (err)
 			return err;
-		spe->branch_miss_id = id;
-		arm_spe_set_event_name(evlist, id, "branch-miss");
+		spe->branch_id = id;
+		arm_spe_set_event_name(evlist, id, "branch");
 		id += 1;
 	}
 
-- 
2.53.0