linux-kernel - [PATCH v1 08/11] perf arm-spe: Fill branch operations and events to record

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Message-Id: <20250205121555.180606-9-leo.yan@arm.com>
Date: Wed,  5 Feb 2025 12:15:52 +0000
From: Leo Yan <leo.yan@....com>
To: Arnaldo Carvalho de Melo <acme@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Jiri Olsa <jolsa@...nel.org>,
	Ian Rogers <irogers@...gle.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	"Liang, Kan" <kan.liang@...ux.intel.com>,
	John Garry <john.g.garry@...cle.com>,
	Will Deacon <will@...nel.org>,
	James Clark <james.clark@...aro.org>,
	Mike Leach <mike.leach@...aro.org>,
	linux-perf-users@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Graham Woodward <graham.woodward@....com>
Cc: Leo Yan <leo.yan@....com>
Subject: [PATCH v1 08/11] perf arm-spe: Fill branch operations and events to record

The new added branch operations and events are filled into record, the
information will be consumed when synthesizing samples.

Signed-off-by: Leo Yan <leo.yan@....com>
---
 .../util/arm-spe-decoder/arm-spe-decoder.c     | 18 ++++++++++++++++++
 .../util/arm-spe-decoder/arm-spe-decoder.h     | 10 ++++++++--
 2 files changed, 26 insertions(+), 2 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 ba807071d3c1..52bd0a4ea96d 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
@@ -207,6 +207,18 @@ static int arm_spe_read_record(struct arm_spe_decoder *decoder)
 				break;
 			case SPE_OP_PKT_HDR_CLASS_BR_ERET:
 				decoder->record.op |= ARM_SPE_OP_BRANCH_ERET;
+				if (payload & SPE_OP_PKT_COND)
+					decoder->record.op |= ARM_SPE_OP_BR_COND;
+				if (payload & SPE_OP_PKT_INDIRECT_BRANCH)
+					decoder->record.op |= ARM_SPE_OP_BR_INDIRECT;
+				if (payload & SPE_OP_PKT_GCS)
+					decoder->record.op |= ARM_SPE_OP_BR_GCS;
+				if (SPE_OP_PKT_CR_BL(payload))
+					decoder->record.op |= ARM_SPE_OP_BR_CR_BL;
+				if (SPE_OP_PKT_CR_RET(payload))
+					decoder->record.op |= ARM_SPE_OP_BR_CR_RET;
+				if (SPE_OP_PKT_CR_NON_BL_RET(payload))
+					decoder->record.op |= ARM_SPE_OP_BR_CR_NON_BL_RET;
 				break;
 			default:
 				pr_err("Get packet error!\n");
@@ -238,6 +250,12 @@ static int arm_spe_read_record(struct arm_spe_decoder *decoder)
 			if (payload & BIT(EV_MISPRED))
 				decoder->record.type |= ARM_SPE_BRANCH_MISS;
 
+			if (payload & BIT(EV_NOT_TAKEN))
+				decoder->record.type |= ARM_SPE_BRANCH_NOT_TAKEN;
+
+			if (payload & BIT(EV_TRANSACTIONAL))
+				decoder->record.type |= ARM_SPE_IN_TXN;
+
 			if (payload & BIT(EV_PARTIAL_PREDICATE))
 				decoder->record.type |= ARM_SPE_SVE_PARTIAL_PRED;
 
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 4bcd627e859f..85b688a97436 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
@@ -24,6 +24,8 @@ enum arm_spe_sample_type {
 	ARM_SPE_REMOTE_ACCESS		= 1 << 7,
 	ARM_SPE_SVE_PARTIAL_PRED	= 1 << 8,
 	ARM_SPE_SVE_EMPTY_PRED		= 1 << 9,
+	ARM_SPE_BRANCH_NOT_TAKEN	= 1 << 10,
+	ARM_SPE_IN_TXN			= 1 << 11,
 };
 
 enum arm_spe_op_type {
@@ -52,8 +54,12 @@ enum arm_spe_op_type {
 	ARM_SPE_OP_SVE_SG		= 1 << 27,
 
 	/* Second level operation type for BRANCH_ERET */
-	ARM_SPE_OP_BR_COND	= 1 << 16,
-	ARM_SPE_OP_BR_INDIRECT	= 1 << 17,
+	ARM_SPE_OP_BR_COND		= 1 << 16,
+	ARM_SPE_OP_BR_INDIRECT		= 1 << 17,
+	ARM_SPE_OP_BR_GCS		= 1 << 18,
+	ARM_SPE_OP_BR_CR_BL		= 1 << 19,
+	ARM_SPE_OP_BR_CR_RET		= 1 << 20,
+	ARM_SPE_OP_BR_CR_NON_BL_RET	= 1 << 21,
 };
 
 enum arm_spe_common_data_source {
-- 
2.34.1