perf tests: Fix 'Convert perf time to TSC' on core-only system

If the atom CPUs are offlined, the 'cpu_atom' is not valid.
We don't need the test case for 'cpu_atom'.

Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210708013701.20347-5-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 85d75b9b25a1aaa2c480f18da47c44eacdf1ef79..7c56bc1f4cff0d1b99abba14011e3b3977c45cc8 100644 (file)
--- a/tools/perf/tests/perf-time-to-tsc.c
+++ b/tools/perf/tests/perf-time-to-tsc.c
@@ -21,6 +21,7 @@
 #include "mmap.h"
 #include "tests.h"
 #include "pmu.h"
+#include "pmu-hybrid.h"
 
 #define CHECK__(x) {                           \
        while ((x) < 0) {                       \
@@ -93,7 +94,7 @@ int test__perf_time_to_tsc(struct test *test __maybe_unused, int subtest __maybe
         * For hybrid "cycles:u", it creates two events.
         * Init the second evsel here.
         */
-       if (perf_pmu__has_hybrid()) {
+       if (perf_pmu__has_hybrid() && perf_pmu__hybrid_mounted("cpu_atom")) {
                evsel = evsel__next(evsel);
                evsel->core.attr.comm = 1;
                evsel->core.attr.disabled = 1;