perf tests: Support 'Convert perf time to TSC' test for hybrid

Since for "cycles:u' on hybrid platform, it creates two "cycles".  So
the second evsel in evlist also needs initialization.

With this patch,

  # ./perf test 71
  71: Convert perf time to TSC                                        : Ok

Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210427070139.25256-25-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/tests/perf-time-to-tsc.c b/tools/perf/tests/perf-time-to-tsc.c
index 680c3cf..85d75b9 100644 (file)
--- a/tools/perf/tests/perf-time-to-tsc.c
+++ b/tools/perf/tests/perf-time-to-tsc.c
@@ -20,6 +20,7 @@
 #include "tsc.h"
 #include "mmap.h"
 #include "tests.h"
+#include "pmu.h"
 
 #define CHECK__(x) {                           \
        while ((x) < 0) {                       \
@@ -88,6 +89,17 @@ int test__perf_time_to_tsc(struct test *test __maybe_unused, int subtest __maybe
        evsel->core.attr.disabled = 1;
        evsel->core.attr.enable_on_exec = 0;
 
+       /*
+        * For hybrid "cycles:u", it creates two events.
+        * Init the second evsel here.
+        */
+       if (perf_pmu__has_hybrid()) {
+               evsel = evsel__next(evsel);
+               evsel->core.attr.comm = 1;
+               evsel->core.attr.disabled = 1;
+               evsel->core.attr.enable_on_exec = 0;
+       }
+
        CHECK__(evlist__open(evlist));
 
        CHECK__(evlist__mmap(evlist, UINT_MAX));