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perf arm-spe: Correctly set sample flags

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Set flags on all synthesized instruction and branch samples.

Signed-off-by: Graham Woodward <graham.woodward@arm.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Tested-by: Leo Yan <leo.yan@arm.com>
Cc: nd@arm.com
Cc: mike.leach@linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20241025143009.25419-4-graham.woodward@arm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
Graham Woodward 2024-10-25 15:30:08 +01:00 committed by Namhyung Kim
parent c1b67c8510
commit edff8dad3f
3 changed files with 19 additions and 0 deletions
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1
tools/perf/builtin-script.c
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@ -1728,6 +1728,7 @@ static struct {
{PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_TRACE_END, "tr end"},
{PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | PERF_IP_FLAG_VMENTRY, "vmentry"},
{PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | PERF_IP_FLAG_VMEXIT, "vmexit"},
{PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_BRANCH_MISS, "br miss"},
{0, NULL}
};

17
tools/perf/util/arm-spe.c
View File

@ -100,6 +100,7 @@ struct arm_spe_queue {
u64 timestamp;
struct thread *thread;
u64 period_instructions;
u32 flags;
};
static void arm_spe_dump(struct arm_spe *spe __maybe_unused,
@ -394,6 +395,7 @@ static int arm_spe__synth_branch_sample(struct arm_spe_queue *speq,
sample.stream_id = spe_events_id;
sample.addr = record->to_ip;
sample.weight = record->latency;
sample.flags = speq->flags;
return arm_spe_deliver_synth_event(spe, speq, event, &sample);
}
@ -423,6 +425,7 @@ static int arm_spe__synth_instruction_sample(struct arm_spe_queue *speq,
sample.data_src = data_src;
sample.period = spe->instructions_sample_period;
sample.weight = record->latency;
sample.flags = speq->flags;
return arm_spe_deliver_synth_event(spe, speq, event, &sample);
}
@ -440,6 +443,19 @@ static const struct midr_range common_ds_encoding_cpus[] = {
{},
};
static void arm_spe__sample_flags(struct arm_spe_queue *speq)
{
const struct arm_spe_record *record = &speq->decoder->record;
speq->flags = 0;
if (record->op & ARM_SPE_OP_BRANCH_ERET) {
speq->flags = PERF_IP_FLAG_BRANCH;
if (record->type & ARM_SPE_BRANCH_MISS)
speq->flags |= PERF_IP_FLAG_BRANCH_MISS;
}
}
static void arm_spe__synth_data_source_common(const struct arm_spe_record *record,
union perf_mem_data_src *data_src)
{
@ -622,6 +638,7 @@ static int arm_spe_sample(struct arm_spe_queue *speq)
u64 data_src;
int err;
arm_spe__sample_flags(speq);
data_src = arm_spe__synth_data_source(speq, record);
if (spe->sample_flc) {

1
tools/perf/util/event.h
View File

@ -66,6 +66,7 @@ enum {
PERF_IP_FLAG_VMEXIT = 1ULL << 12,
PERF_IP_FLAG_INTR_DISABLE = 1ULL << 13,
PERF_IP_FLAG_INTR_TOGGLE = 1ULL << 14,
PERF_IP_FLAG_BRANCH_MISS = 1ULL << 15,
};
#define PERF_IP_FLAG_CHARS "bcrosyiABExghDt"