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authorNamhyung Kim <namhyung@kernel.org>2022-10-03 13:46:43 -0700
committerArnaldo Carvalho de Melo <acme@redhat.com>2022-10-06 08:03:53 -0300
commit06b552ee378193a3a67d7124f3f0e76989881fed (patch)
tree95ece3a2b4d0af161d31b8b38c744582c39a2a27 /tools/lib/perf/evlist.c
parentperf vendor events: Update Intel broadwellde (diff)
downloadlinux-dev-06b552ee378193a3a67d7124f3f0e76989881fed.tar.xz
linux-dev-06b552ee378193a3a67d7124f3f0e76989881fed.zip
libperf: Populate system-wide evsel maps
Setting proper cpu and thread maps for system wide evsels regardless of user requested cpu in __perf_evlist__propagate_maps(). Those evsels need to be active on all cpus always. Do it in the libperf so that we can guarantee it has proper maps. Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20221003204647.1481128-2-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to '')
-rw-r--r--tools/lib/perf/evlist.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/tools/lib/perf/evlist.c b/tools/lib/perf/evlist.c
index 0e7347d1583d..19eaea99aa4f 100644
--- a/tools/lib/perf/evlist.c
+++ b/tools/lib/perf/evlist.c
@@ -40,11 +40,11 @@ static void __perf_evlist__propagate_maps(struct perf_evlist *evlist,
* We already have cpus for evsel (via PMU sysfs) so
* keep it, if there's no target cpu list defined.
*/
- if (!evsel->own_cpus ||
- (!evsel->system_wide && evlist->has_user_cpus) ||
- (!evsel->system_wide &&
- !evsel->requires_cpu &&
- perf_cpu_map__empty(evlist->user_requested_cpus))) {
+ if (evsel->system_wide) {
+ perf_cpu_map__put(evsel->cpus);
+ evsel->cpus = perf_cpu_map__new(NULL);
+ } else if (!evsel->own_cpus || evlist->has_user_cpus ||
+ (!evsel->requires_cpu && perf_cpu_map__empty(evlist->user_requested_cpus))) {
perf_cpu_map__put(evsel->cpus);
evsel->cpus = perf_cpu_map__get(evlist->user_requested_cpus);
} else if (evsel->cpus != evsel->own_cpus) {
@@ -52,7 +52,10 @@ static void __perf_evlist__propagate_maps(struct perf_evlist *evlist,
evsel->cpus = perf_cpu_map__get(evsel->own_cpus);
}
- if (!evsel->system_wide) {
+ if (evsel->system_wide) {
+ perf_thread_map__put(evsel->threads);
+ evsel->threads = perf_thread_map__new_dummy();
+ } else {
perf_thread_map__put(evsel->threads);
evsel->threads = perf_thread_map__get(evlist->threads);
}