linux-kernel - [PATCH v3 12/25] perf arm_spe: Report extended memory operations in records

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Message-Id: <20251112-perf_support_arm_spev1-3-v3-12-e63c9829f9d9@arm.com>
Date: Wed, 12 Nov 2025 18:24:38 +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 12/25] perf arm_spe: Report extended memory operations
 in records

Extended memory operations include atomic (AT), acquire/release (AR),
and exclusive (EXCL) operations. Save the relevant information
in the records.

Signed-off-by: Leo Yan <leo.yan@....com>
---
 tools/perf/util/arm-spe-decoder/arm-spe-decoder.c | 7 +++++++
 1 file changed, 7 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 6696448bdf4f347e2032a1b4da46fcdd4016f9fc..949c20816826a4d45d6cf9a5efaa125acea90b0a 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
@@ -211,6 +211,13 @@ static int arm_spe_read_record(struct arm_spe_decoder *decoder)
 					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_EXTENDED(payload)) {
+					if (payload & SPE_OP_PKT_AR)
+						decoder->record.op |= ARM_SPE_OP_AR;
+					if (payload & SPE_OP_PKT_EXCL)
+						decoder->record.op |= ARM_SPE_OP_EXCL;
+					if (payload & SPE_OP_PKT_AT)
+						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;
 				}

-- 
2.34.1