[PATCH v3 20/22] perf test: TSC test, remove is_supported use

From: Ian Rogers
Date: Thu Nov 04 2021 - 02:45:36 EST


Migrate the is_supported functionality to returning TEST_SKIP.
Motivation is kunit has no is_supported function.

Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
---
tools/perf/tests/perf-time-to-tsc.c | 39 ++++++++++++-----------------
1 file changed, 16 insertions(+), 23 deletions(-)

diff --git a/tools/perf/tests/perf-time-to-tsc.c b/tools/perf/tests/perf-time-to-tsc.c
index 594013e94ed0..d12d0ad81801 100644
--- a/tools/perf/tests/perf-time-to-tsc.c
+++ b/tools/perf/tests/perf-time-to-tsc.c
@@ -23,6 +23,16 @@
#include "pmu.h"
#include "pmu-hybrid.h"

+/*
+ * Except x86_64/i386 and Arm64, other archs don't support TSC in perf. Just
+ * enable the test for x86_64/i386 and Arm64 archs.
+ */
+#if defined(__x86_64__) || defined(__i386__) || defined(__aarch64__)
+#define TSC_IS_SUPPORTED 1
+#else
+#define TSC_IS_SUPPORTED 0
+#endif
+
#define CHECK__(x) { \
while ((x) < 0) { \
pr_debug(#x " failed!\n"); \
@@ -69,6 +79,11 @@ static int test__perf_time_to_tsc(struct test_suite *test __maybe_unused, int su
u64 test_time, comm1_time = 0, comm2_time = 0;
struct mmap *md;

+ if (!TSC_IS_SUPPORTED) {
+ pr_debug("Test not supported on this architecture");
+ return TEST_SKIP;
+ }
+
threads = thread_map__new(-1, getpid(), UINT_MAX);
CHECK_NOT_NULL__(threads);

@@ -185,26 +200,4 @@ static int test__perf_time_to_tsc(struct test_suite *test __maybe_unused, int su
return err;
}

-static bool test__tsc_is_supported(void)
-{
- /*
- * Except x86_64/i386 and Arm64, other archs don't support TSC in perf.
- * Just enable the test for x86_64/i386 and Arm64 archs.
- */
-#if defined(__x86_64__) || defined(__i386__) || defined(__aarch64__)
- return true;
-#else
- return false;
-#endif
-}
-
-static struct test_case perf_time_to_tsc_tests[] = {
- TEST_CASE("Convert perf time to TSC", perf_time_to_tsc),
- { .name = NULL, }
-};
-
-struct test_suite suite__perf_time_to_tsc = {
- .desc = "Convert perf time to TSC",
- .test_cases = perf_time_to_tsc_tests,
- .is_supported = test__tsc_is_supported,
-};
+DEFINE_SUITE("Convert perf time to TSC", perf_time_to_tsc);
--
2.33.1.1089.g2158813163f-goog