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authorLeo Yan <leo.yan@arm.com>2025-09-12 16:42:11 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2025-09-19 12:14:28 -0300
commit45854b6d775b3a0610cdd5e00393253539338d14 (patch)
tree9079f00af0c9019263e07c4d85ae8e99c8328883
parent7203a22492e6c1836e641c8f65786c40e456dd42 (diff)
downloadlinux-next-45854b6d775b3a0610cdd5e00393253539338d14.tar.gz
linux-next-45854b6d775b3a0610cdd5e00393253539338d14.zip
perf arm_spe: Directly propagate raw event
Two sets of event bits are defined: one for generating samples and another are raw event bits used in the backend decoder. Reduce the redundancy by using the raw event bits directly in the frontend code. To avoid overflow issues, change the type of the event variable from enum to u64. Reviewed-by: James Clark <james.clark@linaro.org> Signed-off-by: Leo Yan <leo.yan@arm.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ali Saidi <alisaidi@amazon.com> Cc: German Gomez <german.gomez@arm.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Will Deacon <will@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/util/arm-spe-decoder/arm-spe-decoder.c37
-rw-r--r--tools/perf/util/arm-spe-decoder/arm-spe-decoder.h28
2 files changed, 14 insertions, 51 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 688fe6d75244..96eb7cced6fd 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
@@ -229,42 +229,7 @@ static int arm_spe_read_record(struct arm_spe_decoder *decoder)
}
break;
case ARM_SPE_EVENTS:
- if (payload & BIT(EV_L1D_REFILL))
- decoder->record.type |= ARM_SPE_L1D_MISS;
-
- if (payload & BIT(EV_L1D_ACCESS))
- decoder->record.type |= ARM_SPE_L1D_ACCESS;
-
- if (payload & BIT(EV_TLB_WALK))
- decoder->record.type |= ARM_SPE_TLB_MISS;
-
- if (payload & BIT(EV_TLB_ACCESS))
- decoder->record.type |= ARM_SPE_TLB_ACCESS;
-
- if (payload & BIT(EV_LLC_MISS))
- decoder->record.type |= ARM_SPE_LLC_MISS;
-
- if (payload & BIT(EV_LLC_ACCESS))
- decoder->record.type |= ARM_SPE_LLC_ACCESS;
-
- if (payload & BIT(EV_REMOTE_ACCESS))
- decoder->record.type |= ARM_SPE_REMOTE_ACCESS;
-
- 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;
-
- if (payload & BIT(EV_EMPTY_PREDICATE))
- decoder->record.type |= ARM_SPE_SVE_EMPTY_PRED;
-
+ decoder->record.type = payload;
break;
case ARM_SPE_DATA_SOURCE:
decoder->record.source = payload;
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 881d9f29c138..03da55453da8 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
@@ -13,20 +13,18 @@
#include "arm-spe-pkt-decoder.h"
-enum arm_spe_sample_type {
- ARM_SPE_L1D_ACCESS = 1 << 0,
- ARM_SPE_L1D_MISS = 1 << 1,
- ARM_SPE_LLC_ACCESS = 1 << 2,
- ARM_SPE_LLC_MISS = 1 << 3,
- ARM_SPE_TLB_ACCESS = 1 << 4,
- ARM_SPE_TLB_MISS = 1 << 5,
- ARM_SPE_BRANCH_MISS = 1 << 6,
- 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,
-};
+#define ARM_SPE_L1D_ACCESS BIT(EV_L1D_ACCESS)
+#define ARM_SPE_L1D_MISS BIT(EV_L1D_REFILL)
+#define ARM_SPE_LLC_ACCESS BIT(EV_LLC_ACCESS)
+#define ARM_SPE_LLC_MISS BIT(EV_LLC_MISS)
+#define ARM_SPE_TLB_ACCESS BIT(EV_TLB_ACCESS)
+#define ARM_SPE_TLB_MISS BIT(EV_TLB_WALK)
+#define ARM_SPE_BRANCH_MISS BIT(EV_MISPRED)
+#define ARM_SPE_BRANCH_NOT_TAKEN BIT(EV_NOT_TAKEN)
+#define ARM_SPE_REMOTE_ACCESS BIT(EV_REMOTE_ACCESS)
+#define ARM_SPE_SVE_PARTIAL_PRED BIT(EV_PARTIAL_PREDICATE)
+#define ARM_SPE_SVE_EMPTY_PRED BIT(EV_EMPTY_PREDICATE)
+#define ARM_SPE_IN_TXN BIT(EV_TRANSACTIONAL)
enum arm_spe_op_type {
/* First level operation type */
@@ -100,7 +98,7 @@ enum arm_spe_hisi_hip_data_source {
};
struct arm_spe_record {
- enum arm_spe_sample_type type;
+ u64 type;
int err;
u32 op;
u32 latency;