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-rw-r--r--tools/perf/util/evlist-hybrid.c73
1 files changed, 73 insertions, 0 deletions
diff --git a/tools/perf/util/evlist-hybrid.c b/tools/perf/util/evlist-hybrid.c
index db3f5fbdebe1..7c554234b43d 100644
--- a/tools/perf/util/evlist-hybrid.c
+++ b/tools/perf/util/evlist-hybrid.c
@@ -86,3 +86,76 @@ bool evlist__has_hybrid(struct evlist *evlist)
return false;
}
+
+int evlist__fix_hybrid_cpus(struct evlist *evlist, const char *cpu_list)
+{
+ struct perf_cpu_map *cpus;
+ struct evsel *evsel, *tmp;
+ struct perf_pmu *pmu;
+ int ret, unmatched_count = 0, events_nr = 0;
+
+ if (!perf_pmu__has_hybrid() || !cpu_list)
+ return 0;
+
+ cpus = perf_cpu_map__new(cpu_list);
+ if (!cpus)
+ return -1;
+
+ /*
+ * The evsels are created with hybrid pmu's cpus. But now we
+ * need to check and adjust the cpus of evsel by cpu_list because
+ * cpu_list may cause conflicts with cpus of evsel. For example,
+ * cpus of evsel is cpu0-7, but the cpu_list is cpu6-8, we need
+ * to adjust the cpus of evsel to cpu6-7. And then propatate maps
+ * in evlist__create_maps().
+ */
+ evlist__for_each_entry_safe(evlist, tmp, evsel) {
+ struct perf_cpu_map *matched_cpus, *unmatched_cpus;
+ char buf1[128], buf2[128];
+
+ pmu = perf_pmu__find_hybrid_pmu(evsel->pmu_name);
+ if (!pmu)
+ continue;
+
+ ret = perf_pmu__cpus_match(pmu, cpus, &matched_cpus,
+ &unmatched_cpus);
+ if (ret)
+ goto out;
+
+ events_nr++;
+
+ if (matched_cpus->nr > 0 && (unmatched_cpus->nr > 0 ||
+ matched_cpus->nr < cpus->nr ||
+ matched_cpus->nr < pmu->cpus->nr)) {
+ perf_cpu_map__put(evsel->core.cpus);
+ perf_cpu_map__put(evsel->core.own_cpus);
+ evsel->core.cpus = perf_cpu_map__get(matched_cpus);
+ evsel->core.own_cpus = perf_cpu_map__get(matched_cpus);
+
+ if (unmatched_cpus->nr > 0) {
+ cpu_map__snprint(matched_cpus, buf1, sizeof(buf1));
+ pr_warning("WARNING: use %s in '%s' for '%s', skip other cpus in list.\n",
+ buf1, pmu->name, evsel->name);
+ }
+ }
+
+ if (matched_cpus->nr == 0) {
+ evlist__remove(evlist, evsel);
+ evsel__delete(evsel);
+
+ cpu_map__snprint(cpus, buf1, sizeof(buf1));
+ cpu_map__snprint(pmu->cpus, buf2, sizeof(buf2));
+ pr_warning("WARNING: %s isn't a '%s', please use a CPU list in the '%s' range (%s)\n",
+ buf1, pmu->name, pmu->name, buf2);
+ unmatched_count++;
+ }
+
+ perf_cpu_map__put(matched_cpus);
+ perf_cpu_map__put(unmatched_cpus);
+ }
+
+ ret = (unmatched_count == events_nr) ? -1 : 0;
+out:
+ perf_cpu_map__put(cpus);
+ return ret;
+}