linux-kernel - [PATCH v3 11/25] perf arm_spe: Report MTE allocation tag in record

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Message-Id: <20251112-perf_support_arm_spev1-3-v3-11-e63c9829f9d9@arm.com>
Date: Wed, 12 Nov 2025 18:24:37 +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 11/25] perf arm_spe: Report MTE allocation tag in record

Save MTE tag info in memory record.

Signed-off-by: Leo Yan <leo.yan@....com>
---
 tools/perf/util/arm-spe-decoder/arm-spe-decoder.c | 2 ++
 tools/perf/util/arm-spe-decoder/arm-spe-decoder.h | 1 +
 2 files changed, 3 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 804dce129121b9d2600be01af7f1f2780a9d0fc9..6696448bdf4f347e2032a1b4da46fcdd4016f9fc 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
@@ -209,6 +209,8 @@ static int arm_spe_read_record(struct arm_spe_decoder *decoder)
 					decoder->record.op |= ARM_SPE_OP_UNSPEC_REG;
 				} else if (SPE_OP_PKT_LDST_SUBCLASS_NV_SYSREG(payload)) {
 					decoder->record.op |= ARM_SPE_OP_NV_SYSREG;
+				} else if (SPE_OP_PKT_LDST_SUBCLASS_MTE_TAG(payload)) {
+					decoder->record.op |= ARM_SPE_OP_MTE_TAG;
 				} else if (SPE_OP_PKT_LDST_SUBCLASS_SVE_SME_REG(payload)) {
 					decoder->record.op |= ARM_SPE_OP_SVE;
 				}
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 acab6d11096b19b1d31a553c83cba9732ecf5ddb..7b4d26f2ebfe17a9187f959e5ec0b2479f70cc2f 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
@@ -44,6 +44,7 @@ enum arm_spe_2nd_op_ldst {
 	ARM_SPE_OP_NV_SYSREG		= 1 << 10,
 	ARM_SPE_OP_SIMD_FP		= 1 << 11,
 	ARM_SPE_OP_SVE			= 1 << 12,
+	ARM_SPE_OP_MTE_TAG		= 1 << 13,
 
 	/* Assisted information for memory / SIMD */
 	ARM_SPE_OP_LD			= 1 << 20,

-- 
2.34.1