linux-kernel - [PATCH v3 13/25] perf arm_spe: Report associated info for SVE / SME operations

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Message-Id: <20251112-perf_support_arm_spev1-3-v3-13-e63c9829f9d9@arm.com>
Date: Wed, 12 Nov 2025 18:24:39 +0000
From: Leo Yan <leo.yan@....com>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
 Arnaldo Carvalho de Melo <acme@...nel.org>, 
 Namhyung Kim <namhyung@...nel.org>, Jiri Olsa <jolsa@...nel.org>, 
 Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, 
 James Clark <james.clark@...aro.org>, Mark Rutland <mark.rutland@....com>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>, 
 linux-perf-users@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, Leo Yan <leo.yan@....com>
Subject: [PATCH v3 13/25] perf arm_spe: Report associated info for SVE /
 SME operations

SVE / SME operations can be predicated or Gather load / scatter store,
save the relevant info into record.

Signed-off-by: Leo Yan <leo.yan@....com>
---
 tools/perf/util/arm-spe-decoder/arm-spe-decoder.c | 4 ++++
 tools/perf/util/arm-spe-decoder/arm-spe-decoder.h | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
index 949c20816826a4d45d6cf9a5efaa125acea90b0a..5b214fc4ca9f67cf11700a18939f37f4a5400b84 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
@@ -220,6 +220,10 @@ static int arm_spe_read_record(struct arm_spe_decoder *decoder)
 						decoder->record.op |= ARM_SPE_OP_ATOMIC;
 				} else if (SPE_OP_PKT_LDST_SUBCLASS_SVE_SME_REG(payload)) {
 					decoder->record.op |= ARM_SPE_OP_SVE;
+					if (payload & SPE_OP_PKT_SVE_PRED)
+						decoder->record.op |= ARM_SPE_OP_PRED;
+					if (payload & SPE_OP_PKT_SVE_SG)
+						decoder->record.op |= ARM_SPE_OP_SG;
 				}
 
 				break;
diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
index 7b4d26f2ebfe17a9187f959e5ec0b2479f70cc2f..d14cf6b95507bcbdb1f7e6d4908e6c40c4a8279c 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
@@ -53,6 +53,8 @@ enum arm_spe_2nd_op_ldst {
 	ARM_SPE_OP_EXCL			= 1 << 23,
 	ARM_SPE_OP_AR			= 1 << 24,
 	ARM_SPE_OP_DP			= 1 << 25,	/* Data processing */
+	ARM_SPE_OP_PRED			= 1 << 26,	/* Predicated */
+	ARM_SPE_OP_SG			= 1 << 27,	/* Gather/Scatter */
 };
 
 enum arm_spe_2nd_op_branch {

-- 
2.34.1