From: Leo Yan <leo.yan@arm.com>
Date: Fri, 12 Sep 2025 15:42:12 +0000 (+0100)
Subject: perf arm_spe: Decode event types for new features
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=e44e2b2b16dffc56c86cc062d85721644dcf37f4;p=users%2Fhch%2Fmisc.git

perf arm_spe: Decode event types for new features

Decode new event types introduced by FEAT_SPEv1p4, FEAT_SPE_SME and
FEAT_SPE_SME.

The printed event names don't strictly follow the naming in the Arm ARM.
For example, the "Cache data modified" event is shown as "HITM", and the
"Data snooped" event is printed as "SNOOPED". Shorter names are easier
to read while preserving core meanings.

Reviewed-by: James Clark <james.clark@linaro.org>
Signed-off-by: Leo Yan <leo.yan@arm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ali Saidi <alisaidi@amazon.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---

diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c
index 13cadb2f1cea..80561630253d 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c
@@ -314,6 +314,20 @@ static int arm_spe_pkt_desc_event(const struct arm_spe_pkt *packet,
 		arm_spe_pkt_out_string(&err, &buf, &buf_len, " SVE-PARTIAL-PRED");
 	if (payload & BIT(EV_EMPTY_PREDICATE))
 		arm_spe_pkt_out_string(&err, &buf, &buf_len, " SVE-EMPTY-PRED");
+	if (payload & BIT(EV_L2D_ACCESS))
+		arm_spe_pkt_out_string(&err, &buf, &buf_len, " L2D-ACCESS");
+	if (payload & BIT(EV_L2D_MISS))
+		arm_spe_pkt_out_string(&err, &buf, &buf_len, " L2D-MISS");
+	if (payload & BIT(EV_CACHE_DATA_MODIFIED))
+		arm_spe_pkt_out_string(&err, &buf, &buf_len, " HITM");
+	if (payload & BIT(EV_RECENTLY_FETCHED))
+		arm_spe_pkt_out_string(&err, &buf, &buf_len, " LFB");
+	if (payload & BIT(EV_DATA_SNOOPED))
+		arm_spe_pkt_out_string(&err, &buf, &buf_len, " SNOOPED");
+	if (payload & BIT(EV_STREAMING_SVE_MODE))
+		arm_spe_pkt_out_string(&err, &buf, &buf_len, " STREAMING-SVE");
+	if (payload & BIT(EV_SMCU))
+		arm_spe_pkt_out_string(&err, &buf, &buf_len, " SMCU");
 
 	return err;
 }
diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h
index 2cdf9f6da268..d00c2481712d 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h
@@ -108,6 +108,13 @@ enum arm_spe_events {
 	EV_TRANSACTIONAL	= 16,
 	EV_PARTIAL_PREDICATE	= 17,
 	EV_EMPTY_PREDICATE	= 18,
+	EV_L2D_ACCESS		= 19,
+	EV_L2D_MISS		= 20,
+	EV_CACHE_DATA_MODIFIED	= 21,
+	EV_RECENTLY_FETCHED	= 22,
+	EV_DATA_SNOOPED		= 23,
+	EV_STREAMING_SVE_MODE	= 24,
+	EV_SMCU			= 25,
 };
 
 /* Operation packet header */