linux-kernel - [PATCH v3 14/20] perf arm-spe: Refactor event type handling

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Message-Id: <20201022145816.14069-15-leo.yan@linaro.org>
Date:   Thu, 22 Oct 2020 15:58:10 +0100
From:   Leo Yan <leo.yan@...aro.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Wei Li <liwei391@...wei.com>,
        James Clark <james.clark@....com>,
        Andre Przywara <andre.przywara@....com>,
        Al Grant <Al.Grant@....com>, Dave Martin <Dave.Martin@....com>,
        linux-kernel@...r.kernel.org
Cc:     Leo Yan <leo.yan@...aro.org>
Subject: [PATCH v3 14/20] perf arm-spe: Refactor event type handling

Move the enums of event types to arm-spe-pkt-decoder.h, thus function
arm_spe_pkt_desc() can them for bitmasks.

Suggested-by: Andre Przywara <andre.przywara@....com>
Signed-off-by: Leo Yan <leo.yan@...aro.org>
---
 .../util/arm-spe-decoder/arm-spe-decoder.h    | 17 --------------
 .../arm-spe-decoder/arm-spe-pkt-decoder.c     | 22 +++++++++----------
 .../arm-spe-decoder/arm-spe-pkt-decoder.h     | 18 +++++++++++++++
 3 files changed, 29 insertions(+), 28 deletions(-)

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 a5111a8d4360..24727b8ca7ff 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
@@ -13,23 +13,6 @@
 
 #include "arm-spe-pkt-decoder.h"
 
-enum arm_spe_events {
-	EV_EXCEPTION_GEN	= 0,
-	EV_RETIRED		= 1,
-	EV_L1D_ACCESS		= 2,
-	EV_L1D_REFILL		= 3,
-	EV_TLB_ACCESS		= 4,
-	EV_TLB_WALK		= 5,
-	EV_NOT_TAKEN		= 6,
-	EV_MISPRED		= 7,
-	EV_LLC_ACCESS		= 8,
-	EV_LLC_MISS		= 9,
-	EV_REMOTE_ACCESS	= 10,
-	EV_ALIGNMENT		= 11,
-	EV_PARTIAL_PREDICATE	= 17,
-	EV_EMPTY_PREDICATE	= 18,
-};
-
 enum arm_spe_sample_type {
 	ARM_SPE_L1D_ACCESS	= 1 << 0,
 	ARM_SPE_L1D_MISS	= 1 << 1,
diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c
index 8a6b50f32a52..58a1390b7a43 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c
@@ -277,58 +277,58 @@ static int arm_spe_pkt_desc_event(const struct arm_spe_pkt *packet,
 	if (ret < 0)
 		return ret;
 
-	if (payload & 0x1) {
+	if (payload & BIT(EV_EXCEPTION_GEN)) {
 		ret = arm_spe_pkt_snprintf(&buf, &blen, " EXCEPTION-GEN");
 		if (ret < 0)
 			return ret;
 	}
-	if (payload & 0x2) {
+	if (payload & BIT(EV_RETIRED)) {
 		ret = arm_spe_pkt_snprintf(&buf, &blen, " RETIRED");
 		if (ret < 0)
 			return ret;
 	}
-	if (payload & 0x4) {
+	if (payload & BIT(EV_L1D_ACCESS)) {
 		ret = arm_spe_pkt_snprintf(&buf, &blen, " L1D-ACCESS");
 		if (ret < 0)
 			return ret;
 	}
-	if (payload & 0x8) {
+	if (payload & BIT(EV_L1D_REFILL)) {
 		ret = arm_spe_pkt_snprintf(&buf, &blen, " L1D-REFILL");
 		if (ret < 0)
 			return ret;
 	}
-	if (payload & 0x10) {
+	if (payload & BIT(EV_TLB_ACCESS)) {
 		ret = arm_spe_pkt_snprintf(&buf, &blen, " TLB-ACCESS");
 		if (ret < 0)
 			return ret;
 	}
-	if (payload & 0x20) {
+	if (payload & BIT(EV_TLB_WALK)) {
 		ret = arm_spe_pkt_snprintf(&buf, &blen, " TLB-REFILL");
 		if (ret < 0)
 			return ret;
 	}
-	if (payload & 0x40) {
+	if (payload & BIT(EV_NOT_TAKEN)) {
 		ret = arm_spe_pkt_snprintf(&buf, &blen, " NOT-TAKEN");
 		if (ret < 0)
 			return ret;
 	}
-	if (payload & 0x80) {
+	if (payload & BIT(EV_MISPRED)) {
 		ret = arm_spe_pkt_snprintf(&buf, &blen, " MISPRED");
 		if (ret < 0)
 			return ret;
 	}
 	if (packet->index > 1) {
-		if (payload & 0x100) {
+		if (payload & BIT(EV_LLC_ACCESS)) {
 			ret = arm_spe_pkt_snprintf(&buf, &blen, " LLC-ACCESS");
 			if (ret < 0)
 				return ret;
 		}
-		if (payload & 0x200) {
+		if (payload & BIT(EV_LLC_MISS)) {
 			ret = arm_spe_pkt_snprintf(&buf, &blen, " LLC-REFILL");
 			if (ret < 0)
 				return ret;
 		}
-		if (payload & 0x400) {
+		if (payload & BIT(EV_REMOTE_ACCESS)) {
 			ret = arm_spe_pkt_snprintf(&buf, &blen, " REMOTE-ACCESS");
 			if (ret < 0)
 				return ret;
diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h
index 8a291f451ef8..12c344454cf1 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h
@@ -92,6 +92,24 @@ struct arm_spe_pkt {
 #define SPE_CNT_PKT_HDR_INDEX_ISSUE_LAT		0x1
 #define SPE_CNT_PKT_HDR_INDEX_TRANS_LAT		0x2
 
+/* Event packet payload */
+enum arm_spe_events {
+	EV_EXCEPTION_GEN	= 0,
+	EV_RETIRED		= 1,
+	EV_L1D_ACCESS		= 2,
+	EV_L1D_REFILL		= 3,
+	EV_TLB_ACCESS		= 4,
+	EV_TLB_WALK		= 5,
+	EV_NOT_TAKEN		= 6,
+	EV_MISPRED		= 7,
+	EV_LLC_ACCESS		= 8,
+	EV_LLC_MISS		= 9,
+	EV_REMOTE_ACCESS	= 10,
+	EV_ALIGNMENT		= 11,
+	EV_PARTIAL_PREDICATE	= 17,
+	EV_EMPTY_PREDICATE	= 18,
+};
+
 const char *arm_spe_pkt_name(enum arm_spe_pkt_type);
 
 int arm_spe_get_packet(const unsigned char *buf, size_t len,
-- 
2.17.1