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Subject[PATCH v2 10/14] perf arm-spe: Refactor event type handling
Date
Use macros instead of the enum values for event types, this is more
directive and without bit shifting when parse packet.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
---
.../util/arm-spe-decoder/arm-spe-decoder.c | 16 +++++++-------
.../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 | 16 ++++++++++++++
4 files changed, 35 insertions(+), 36 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 9d3de163d47c..ac66e7f42a58 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
@@ -168,31 +168,31 @@ static int arm_spe_read_record(struct arm_spe_decoder *decoder)
case ARM_SPE_OP_TYPE:
break;
case ARM_SPE_EVENTS:
- if (payload & BIT(EV_L1D_REFILL))
+ if (payload & SPE_EVT_PKT_L1D_REFILL)
decoder->record.type |= ARM_SPE_L1D_MISS;

- if (payload & BIT(EV_L1D_ACCESS))
+ if (payload & SPE_EVT_PKT_L1D_ACCESS)
decoder->record.type |= ARM_SPE_L1D_ACCESS;

- if (payload & BIT(EV_TLB_WALK))
+ if (payload & SPE_EVT_PKT_TLB_WALK)
decoder->record.type |= ARM_SPE_TLB_MISS;

- if (payload & BIT(EV_TLB_ACCESS))
+ if (payload & SPE_EVT_PKT_TLB_ACCESS)
decoder->record.type |= ARM_SPE_TLB_ACCESS;

if ((idx == 2 || idx == 4 || idx == 8) &&
- (payload & BIT(EV_LLC_MISS)))
+ (payload & SPE_EVT_PKT_LLC_MISS))
decoder->record.type |= ARM_SPE_LLC_MISS;

if ((idx == 2 || idx == 4 || idx == 8) &&
- (payload & BIT(EV_LLC_ACCESS)))
+ (payload & SPE_EVT_PKT_LLC_ACCESS))
decoder->record.type |= ARM_SPE_LLC_ACCESS;

if ((idx == 2 || idx == 4 || idx == 8) &&
- (payload & BIT(EV_REMOTE_ACCESS)))
+ (payload & SPE_EVT_PKT_REMOTE_ACCESS))
decoder->record.type |= ARM_SPE_REMOTE_ACCESS;

- if (payload & BIT(EV_MISPRED))
+ if (payload & SPE_EVT_PKT_MISPREDICTED)
decoder->record.type |= ARM_SPE_BRANCH_MISS;

break;
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 ed0f4c74dfc5..b8f343320abf 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
@@ -284,58 +284,58 @@ int arm_spe_pkt_desc(const struct arm_spe_pkt *packet, char *buf,
if (ret < 0)
return ret;

- if (payload & 0x1) {
+ if (payload & SPE_EVT_PKT_GEN_EXCEPTION) {
ret = arm_spe_pkt_snprintf(&buf, &blen, " EXCEPTION-GEN");
if (ret < 0)
return ret;
}
- if (payload & 0x2) {
+ if (payload & SPE_EVT_PKT_ARCH_RETIRED) {
ret = arm_spe_pkt_snprintf(&buf, &blen, " RETIRED");
if (ret < 0)
return ret;
}
- if (payload & 0x4) {
+ if (payload & SPE_EVT_PKT_L1D_ACCESS) {
ret = arm_spe_pkt_snprintf(&buf, &blen, " L1D-ACCESS");
if (ret < 0)
return ret;
}
- if (payload & 0x8) {
+ if (payload & SPE_EVT_PKT_L1D_REFILL) {
ret = arm_spe_pkt_snprintf(&buf, &blen, " L1D-REFILL");
if (ret < 0)
return ret;
}
- if (payload & 0x10) {
+ if (payload & SPE_EVT_PKT_TLB_ACCESS) {
ret = arm_spe_pkt_snprintf(&buf, &blen, " TLB-ACCESS");
if (ret < 0)
return ret;
}
- if (payload & 0x20) {
+ if (payload & SPE_EVT_PKT_TLB_WALK) {
ret = arm_spe_pkt_snprintf(&buf, &blen, " TLB-REFILL");
if (ret < 0)
return ret;
}
- if (payload & 0x40) {
+ if (payload & SPE_EVT_PKT_NOT_TAKEN) {
ret = arm_spe_pkt_snprintf(&buf, &blen, " NOT-TAKEN");
if (ret < 0)
return ret;
}
- if (payload & 0x80) {
+ if (payload & SPE_EVT_PKT_MISPREDICTED) {
ret = arm_spe_pkt_snprintf(&buf, &blen, " MISPRED");
if (ret < 0)
return ret;
}
if (idx > 1) {
- if (payload & 0x100) {
+ if (payload & SPE_EVT_PKT_LLC_ACCESS) {
ret = arm_spe_pkt_snprintf(&buf, &blen, " LLC-ACCESS");
if (ret < 0)
return ret;
}
- if (payload & 0x200) {
+ if (payload & SPE_EVT_PKT_LLC_MISS) {
ret = arm_spe_pkt_snprintf(&buf, &blen, " LLC-REFILL");
if (ret < 0)
return ret;
}
- if (payload & 0x400) {
+ if (payload & SPE_EVT_PKT_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 18667a63f5ba..e9a88cf685bb 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
@@ -98,6 +98,22 @@ struct arm_spe_pkt {
#define SPE_CNT_PKT_HDR_EXT_INDEX_MASK GENMASK_ULL(1, 0)
#define SPE_CNT_PKT_HDR_EXT_INDEX_SHIFT (3)

+/* Event packet payload */
+#define SPE_EVT_PKT_SVE_EMPTY_PREDICATE BIT(18)
+#define SPE_EVT_PKT_SVE_PARTIAL_PREDICATE BIT(17)
+#define SPE_EVT_PKT_ALIGNMENT BIT(11)
+#define SPE_EVT_PKT_REMOTE_ACCESS BIT(10)
+#define SPE_EVT_PKT_LLC_MISS BIT(9)
+#define SPE_EVT_PKT_LLC_ACCESS BIT(8)
+#define SPE_EVT_PKT_MISPREDICTED BIT(7)
+#define SPE_EVT_PKT_NOT_TAKEN BIT(6)
+#define SPE_EVT_PKT_TLB_WALK BIT(5)
+#define SPE_EVT_PKT_TLB_ACCESS BIT(4)
+#define SPE_EVT_PKT_L1D_REFILL BIT(3)
+#define SPE_EVT_PKT_L1D_ACCESS BIT(2)
+#define SPE_EVT_PKT_ARCH_RETIRED BIT(1)
+#define SPE_EVT_PKT_GEN_EXCEPTION BIT(0)
+
const char *arm_spe_pkt_name(enum arm_spe_pkt_type);

int arm_spe_get_packet(const unsigned char *buf, size_t len,
--
2.20.1
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