linux-kernel - [PATCH 01/19] perf tools: Save evsel->pmu in parse

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Date:   Thu, 13 Oct 2022 23:15:32 -0700
From:   Namhyung Kim <namhyung@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...nel.org>
Cc:     Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        linux-perf-users@...r.kernel.org,
        Kan Liang <kan.liang@...ux.intel.com>,
        Leo Yan <leo.yan@...aro.org>, Andi Kleen <ak@...ux.intel.com>,
        Athira Rajeev <atrajeev@...ux.vnet.ibm.com>,
        James Clark <james.clark@....com>,
        Xing Zhengjun <zhengjun.xing@...ux.intel.com>
Subject: [PATCH 01/19] perf tools: Save evsel->pmu in parse_events()

Now evsel has a pmu pointer, let's save the info and use it like in
evsel__find_pmu().

Acked-by: Ian Rogers <irogers@...gle.com>
Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/util/evsel.c        | 1 +
 tools/perf/util/parse-events.c | 1 +
 tools/perf/util/pmu.c          | 4 ++++
 3 files changed, 6 insertions(+)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 76605fde3507..196f8e4859d7 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -467,6 +467,7 @@ struct evsel *evsel__clone(struct evsel *orig)
 	evsel->collect_stat = orig->collect_stat;
 	evsel->weak_group = orig->weak_group;
 	evsel->use_config_name = orig->use_config_name;
+	evsel->pmu = orig->pmu;
 
 	if (evsel__copy_config_terms(evsel, orig) < 0)
 		goto out_err;
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 437389dacf48..9e704841273d 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -263,6 +263,7 @@ __add_event(struct list_head *list, int *idx,
 	evsel->core.own_cpus = perf_cpu_map__get(cpus);
 	evsel->core.requires_cpu = pmu ? pmu->is_uncore : false;
 	evsel->auto_merge_stats = auto_merge_stats;
+	evsel->pmu = pmu;
 
 	if (name)
 		evsel->name = strdup(name);
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 74a2cafb4e8d..15bf5943083a 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -1048,11 +1048,15 @@ struct perf_pmu *evsel__find_pmu(struct evsel *evsel)
 {
 	struct perf_pmu *pmu = NULL;
 
+	if (evsel->pmu)
+		return evsel->pmu;
+
 	while ((pmu = perf_pmu__scan(pmu)) != NULL) {
 		if (pmu->type == evsel->core.attr.type)
 			break;
 	}
 
+	evsel->pmu = pmu;
 	return pmu;
 }
 
-- 
2.38.0.413.g74048e4d9e-goog