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From:   Leo Yan <leo.yan@linaro.org>
To:     Arnaldo Carvalho de Melo <acme@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
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        Will Deacon <will@kernel.org>,
        James Clark <james.clark@arm.com>, linux-kernel@vger.kernel.org
Cc:     Leo Yan <leo.yan@linaro.org>
Subject: [PATCH v3 6/6] perf tests tsc: Add checking helper is_supported()
Date:   Wed,  2 Sep 2020 14:21:31 +0100
Message-Id: <20200902132131.36304-7-leo.yan@linaro.org>
In-Reply-To: <20200902132131.36304-1-leo.yan@linaro.org>
References: <20200902132131.36304-1-leo.yan@linaro.org>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

So far tsc is enabled on x86_64, i386 and Arm64 architectures, add
checking helper to skip this testing for other architectures.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
---
 tools/perf/tests/builtin-test.c     |  1 +
 tools/perf/tests/perf-time-to-tsc.c | 13 +++++++++++++
 tools/perf/tests/tests.h            |  1 +
 3 files changed, 15 insertions(+)

diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 67e6a1c6c793..4b57ea79d3e7 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -344,6 +344,7 @@ static struct test generic_tests[] = {
 	{
 		.desc = "Convert perf time to TSC",
 		.func = test__perf_time_to_tsc,
+		.is_supported = test__tsc_is_supported,
 	},
 	{
 		.func = NULL,
diff --git a/tools/perf/tests/perf-time-to-tsc.c b/tools/perf/tests/perf-time-to-tsc.c
index 026d32ed078e..41dadd4cd097 100644
--- a/tools/perf/tests/perf-time-to-tsc.c
+++ b/tools/perf/tests/perf-time-to-tsc.c
@@ -171,3 +171,16 @@ int test__perf_time_to_tsc(struct test *test __maybe_unused, int subtest __maybe
 	evlist__delete(evlist);
 	return err;
 }
+
+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
+}
diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index 1633f54d6156..86466a518d8e 100644
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -127,6 +127,7 @@ int test__perf_time_to_tsc(struct test *test, int subtest);
 bool test__bp_signal_is_supported(void);
 bool test__bp_account_is_supported(void);
 bool test__wp_is_supported(void);
+bool test__tsc_is_supported(void);
 
 #if defined(__arm__) || defined(__aarch64__)
 #ifdef HAVE_DWARF_UNWIND_SUPPORT
-- 
2.17.1