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authorJiri Olsa <jolsa@kernel.org>2015-06-23 00:36:06 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-06-25 15:15:51 -0300
commitb7f0c203586b91419ff9aa9b1115e261082ff5b4 (patch)
treed9733ff295a7b4ef1e898e60052b45b1be4b5ac6
parent186fbb7432f4a740b4fbaf4145375442210110bb (diff)
downloadblackbird-op-linux-b7f0c203586b91419ff9aa9b1115e261082ff5b4.tar.gz
blackbird-op-linux-b7f0c203586b91419ff9aa9b1115e261082ff5b4.zip
perf evlist: Propagate cpu maps to evsels in an evlist
Propagate evlist's cpu_map object through all the evsel objects, while keeping already configured evsel->cpus. It'll be handy to access evsel's cpus directly in following patches. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435012588-9007-6-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/util/evlist.c25
1 files changed, 24 insertions, 1 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index a8d18a3d2164..214affaf1cf6 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1101,6 +1101,29 @@ int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
return perf_evlist__mmap_ex(evlist, pages, overwrite, 0, false);
}
+static int perf_evlist__propagate_maps(struct perf_evlist *evlist,
+ struct target *target)
+{
+ struct perf_evsel *evsel;
+
+ evlist__for_each(evlist, evsel) {
+ /*
+ * We already have cpus for evsel (via PMU sysfs) so
+ * keep it, if there's no target cpu list defined.
+ */
+ if (evsel->cpus && target->cpu_list)
+ cpu_map__put(evsel->cpus);
+
+ if (!evsel->cpus || target->cpu_list)
+ evsel->cpus = cpu_map__get(evlist->cpus);
+
+ if (!evsel->cpus)
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target)
{
evlist->threads = thread_map__new_str(target->pid, target->tid,
@@ -1117,7 +1140,7 @@ int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target)
if (evlist->cpus == NULL)
goto out_delete_threads;
- return 0;
+ return perf_evlist__propagate_maps(evlist, target);
out_delete_threads:
thread_map__put(evlist->threads);
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