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Date: Thu, 6 Aug 2020 11:07:26 +0800
From: Leo Yan <leo.yan@...aro.org>
To: Arnaldo Carvalho de Melo <acme@...nel.org>,
Jiri Olsa <jolsa@...hat.com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Mark Rutland <mark.rutland@....com>,
Namhyung Kim <namhyung@...nel.org>,
"Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com>,
Ian Rogers <irogers@...gle.com>,
Kemeng Shi <shikemeng@...wei.com>,
James Clark <james.clark@....com>,
Wei Li <liwei391@...wei.com>,
Adrian Hunter <adrian.hunter@...el.com>,
Al Grant <Al.Grant@....com>, linux-kernel@...r.kernel.org,
Mathieu Poirier <mathieu.poirier@...aro.org>,
Mike Leach <mike.leach@...aro.org>
Cc: Leo Yan <leo.yan@...aro.org>
Subject: [PATCH RESEND v1 10/11] perf arm-spe: Fill address info for memory samples
Since the Arm SPE backend decoder has passed virtual and physical
addresses info through packet, these addresses info can be filled into
the synthesize samples, finally the address info can be used for memory
profiling.
To support memory related samples, this patch divides into two functions
for generating samples:
- arm_spe__synth_mem_sample() is for synthesizing memory accessing and
TLB related samples;
- arm_spe__synth_branch_sample() is to synthesize branch samples which
is mainly for branch miss prediction.
Signed-off-by: Leo Yan <leo.yan@...aro.org>
---
tools/perf/util/arm-spe.c | 52 +++++++++++++++++++++++----------------
1 file changed, 31 insertions(+), 21 deletions(-)
diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c
index c2cf5058648f..74308a72b000 100644
--- a/tools/perf/util/arm-spe.c
+++ b/tools/perf/util/arm-spe.c
@@ -235,7 +235,6 @@ static void arm_spe_prep_sample(struct arm_spe *spe,
sample->cpumode = arm_spe_cpumode(spe, sample->ip);
sample->pid = speq->pid;
sample->tid = speq->tid;
- sample->addr = record->to_ip;
sample->period = 1;
sample->cpu = speq->cpu;
@@ -259,18 +258,37 @@ arm_spe_deliver_synth_event(struct arm_spe *spe,
return ret;
}
-static int
-arm_spe_synth_spe_events_sample(struct arm_spe_queue *speq,
- u64 spe_events_id)
+static int arm_spe__synth_mem_sample(struct arm_spe_queue *speq,
+ u64 spe_events_id)
{
struct arm_spe *spe = speq->spe;
+ struct arm_spe_record *record = &speq->decoder->record;
+ union perf_event *event = speq->event_buf;
+ struct perf_sample sample = { 0 };
+
+ arm_spe_prep_sample(spe, speq, event, &sample);
+
+ sample.id = spe_events_id;
+ sample.stream_id = spe_events_id;
+ sample.addr = record->addr;
+ sample.phys_addr = record->phys_addr;
+
+ return arm_spe_deliver_synth_event(spe, speq, event, &sample);
+}
+
+static int arm_spe__synth_branch_sample(struct arm_spe_queue *speq,
+ u64 spe_events_id)
+{
+ struct arm_spe *spe = speq->spe;
+ struct arm_spe_record *record = &speq->decoder->record;
union perf_event *event = speq->event_buf;
- struct perf_sample sample = { .ip = 0, };
+ struct perf_sample sample = { 0 };
arm_spe_prep_sample(spe, speq, event, &sample);
sample.id = spe_events_id;
sample.stream_id = spe_events_id;
+ sample.addr = record->to_ip;
return arm_spe_deliver_synth_event(spe, speq, event, &sample);
}
@@ -283,15 +301,13 @@ static int arm_spe_sample(struct arm_spe_queue *speq)
if (spe->sample_flc) {
if (record->type & ARM_SPE_L1D_MISS) {
- err = arm_spe_synth_spe_events_sample(
- speq, spe->l1d_miss_id);
+ err = arm_spe__synth_mem_sample(speq, spe->l1d_miss_id);
if (err)
return err;
}
if (record->type & ARM_SPE_L1D_ACCESS) {
- err = arm_spe_synth_spe_events_sample(
- speq, spe->l1d_access_id);
+ err = arm_spe__synth_mem_sample(speq, spe->l1d_access_id);
if (err)
return err;
}
@@ -299,15 +315,13 @@ static int arm_spe_sample(struct arm_spe_queue *speq)
if (spe->sample_llc) {
if (record->type & ARM_SPE_LLC_MISS) {
- err = arm_spe_synth_spe_events_sample(
- speq, spe->llc_miss_id);
+ err = arm_spe__synth_mem_sample(speq, spe->llc_miss_id);
if (err)
return err;
}
if (record->type & ARM_SPE_LLC_ACCESS) {
- err = arm_spe_synth_spe_events_sample(
- speq, spe->llc_access_id);
+ err = arm_spe__synth_mem_sample(speq, spe->llc_access_id);
if (err)
return err;
}
@@ -315,31 +329,27 @@ static int arm_spe_sample(struct arm_spe_queue *speq)
if (spe->sample_tlb) {
if (record->type & ARM_SPE_TLB_MISS) {
- err = arm_spe_synth_spe_events_sample(
- speq, spe->tlb_miss_id);
+ err = arm_spe__synth_mem_sample(speq, spe->tlb_miss_id);
if (err)
return err;
}
if (record->type & ARM_SPE_TLB_ACCESS) {
- err = arm_spe_synth_spe_events_sample(
- speq, spe->tlb_access_id);
+ err = arm_spe__synth_mem_sample(speq, spe->tlb_access_id);
if (err)
return err;
}
}
if (spe->sample_branch && (record->type & ARM_SPE_BRANCH_MISS)) {
- err = arm_spe_synth_spe_events_sample(speq,
- spe->branch_miss_id);
+ err = arm_spe__synth_branch_sample(speq, spe->branch_miss_id);
if (err)
return err;
}
if (spe->sample_remote_access &&
(record->type & ARM_SPE_REMOTE_ACCESS)) {
- err = arm_spe_synth_spe_events_sample(speq,
- spe->remote_access_id);
+ err = arm_spe__synth_mem_sample(speq, spe->remote_access_id);
if (err)
return err;
}
--
2.17.1
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