linux-kernel - [PATCH v3 09/25] perf arm_spe: Introduce data processing macro for SVE operations

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Message-Id: <20251112-perf_support_arm_spev1-3-v3-9-e63c9829f9d9@arm.com>
Date: Wed, 12 Nov 2025 18:24:35 +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 09/25] perf arm_spe: Introduce data processing macro for
 SVE operations

Introduce the ARM_SPE_OP_DP (data processing) macro as associated
information for SVE operations. For SVE register access, only
ARM_SPE_OP_SVE is set; for SVE data processing, both ARM_SPE_OP_SVE and
ARM_SPE_OP_DP are set together.

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 | 4 ++--
 tools/perf/util/arm-spe.c                         | 5 +----
 3 files changed, 5 insertions(+), 8 deletions(-)

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 847c29385bea8618e14b2eb21a08896041890d89..6974f594f37c9916fff591ced1e9c2d60cf84f14 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
@@ -201,12 +201,12 @@ static int arm_spe_read_record(struct arm_spe_decoder *decoder)
 				else
 					decoder->record.op |= ARM_SPE_OP_LD;
 				if (SPE_OP_PKT_LDST_SUBCLASS_SVE_SME_REG(payload))
-					decoder->record.op |= ARM_SPE_OP_SVE_LDST;
+					decoder->record.op |= ARM_SPE_OP_SVE;
 				break;
 			case SPE_OP_PKT_HDR_CLASS_OTHER:
 				decoder->record.op |= ARM_SPE_OP_OTHER;
 				if (SPE_OP_PKT_OTHER_SUBCLASS_SVE(payload))
-					decoder->record.op |= ARM_SPE_OP_SVE_OTHER;
+					decoder->record.op |= ARM_SPE_OP_SVE | ARM_SPE_OP_DP;
 				break;
 			case SPE_OP_PKT_HDR_CLASS_BR_ERET:
 				decoder->record.op |= ARM_SPE_OP_BRANCH_ERET;
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 b555e2cc1dc36f209c23b0d84378da0ee65c1ab3..acab6d11096b19b1d31a553c83cba9732ecf5ddb 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
@@ -43,8 +43,7 @@ enum arm_spe_2nd_op_ldst {
 	ARM_SPE_OP_UNSPEC_REG		= 1 << 9,
 	ARM_SPE_OP_NV_SYSREG		= 1 << 10,
 	ARM_SPE_OP_SIMD_FP		= 1 << 11,
-	ARM_SPE_OP_SVE_OTHER		= 1 << 12,
-	ARM_SPE_OP_SVE_LDST		= 1 << 13,
+	ARM_SPE_OP_SVE			= 1 << 12,
 
 	/* Assisted information for memory / SIMD */
 	ARM_SPE_OP_LD			= 1 << 20,
@@ -52,6 +51,7 @@ enum arm_spe_2nd_op_ldst {
 	ARM_SPE_OP_ATOMIC		= 1 << 22,
 	ARM_SPE_OP_EXCL			= 1 << 23,
 	ARM_SPE_OP_AR			= 1 << 24,
+	ARM_SPE_OP_DP			= 1 << 25,	/* Data processing */
 };
 
 enum arm_spe_2nd_op_branch {
diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c
index 614ce032f87e46d1f3754258f51bb1693ec128b7..881257d3958705e725f1b7d47b41a93defd231ea 100644
--- a/tools/perf/util/arm-spe.c
+++ b/tools/perf/util/arm-spe.c
@@ -346,10 +346,7 @@ static struct simd_flags arm_spe__synth_simd_flags(const struct arm_spe_record *
 {
 	struct simd_flags simd_flags = {};
 
-	if ((record->op & ARM_SPE_OP_LDST) && (record->op & ARM_SPE_OP_SVE_LDST))
-		simd_flags.arch |= SIMD_OP_FLAGS_ARCH_SVE;
-
-	if ((record->op & ARM_SPE_OP_OTHER) && (record->op & ARM_SPE_OP_SVE_OTHER))
+	if (record->op & ARM_SPE_OP_SVE)
 		simd_flags.arch |= SIMD_OP_FLAGS_ARCH_SVE;
 
 	if (record->type & ARM_SPE_SVE_PARTIAL_PRED)

-- 
2.34.1