Messages in this thread Patch in this message | | | From | James Clark <> | Subject | [PATCH 3/4] perf arm-spe: Add SVE flags to the SPE samples | Date | Mon, 19 Dec 2022 16:12:57 +0000 |
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From: German Gomez <german.gomez@arm.com>
Add flags from the Scalable Vector Extension (SVE) to the SPE samples which are available from Armv8.3 (FEAT_SPEv1p1).
These will be displayed in a new SIMD sort field in a later commit.
Signed-off-by: German Gomez <german.gomez@arm.com> Signed-off-by: James Clark <james.clark@arm.com> --- tools/perf/util/arm-spe.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)
diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c index bfae4731a47a..7b36ba6b4079 100644 --- a/tools/perf/util/arm-spe.c +++ b/tools/perf/util/arm-spe.c @@ -273,6 +273,25 @@ static int arm_spe_set_tid(struct arm_spe_queue *speq, pid_t tid) return 0; } +static struct simd_flags arm_spe__synth_simd_flags(const struct arm_spe_record *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)) + simd_flags.arch |= SIMD_OP_FLAGS_ARCH_SVE; + + if (record->type & ARM_SPE_SVE_PARTIAL_PRED) + simd_flags.pred |= SIMD_OP_FLAGS_PRED_PARTIAL; + + if (record->type & ARM_SPE_SVE_EMPTY_PRED) + simd_flags.pred |= SIMD_OP_FLAGS_PRED_EMPTY; + + return simd_flags; +} + static void arm_spe_prep_sample(struct arm_spe *spe, struct arm_spe_queue *speq, union perf_event *event, @@ -289,6 +308,7 @@ static void arm_spe_prep_sample(struct arm_spe *spe, sample->tid = speq->tid; sample->period = 1; sample->cpu = speq->cpu; + sample->simd_flags = arm_spe__synth_simd_flags(record); event->sample.header.type = PERF_RECORD_SAMPLE; event->sample.header.misc = sample->cpumode; -- 2.25.1
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