linux-kernel - [PATCH v2 24/27] perf tests: Support 'Session topology' test for hybrid

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Message-Id: <20210311070742.9318-25-yao.jin@linux.intel.com>
Date:   Thu, 11 Mar 2021 15:07:39 +0800
From:   Jin Yao <yao.jin@...ux.intel.com>
To:     acme@...nel.org, jolsa@...nel.org, peterz@...radead.org,
        mingo@...hat.com, alexander.shishkin@...ux.intel.com
Cc:     Linux-kernel@...r.kernel.org, ak@...ux.intel.com,
        kan.liang@...el.com, yao.jin@...el.com,
        Jin Yao <yao.jin@...ux.intel.com>
Subject: [PATCH v2 24/27] perf tests: Support 'Session topology' test for hybrid

Force to create one event "cpu_core/cycles/" by default,
otherwise in evlist__valid_sample_type, the checking of
'if (evlist->core.nr_entries == 1)' would be failed.

root@...pl-adl-s-2:~# ./perf test 41
41: Session topology                                                : Ok

Signed-off-by: Jin Yao <yao.jin@...ux.intel.com>
---
 tools/perf/tests/topology.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/tools/perf/tests/topology.c b/tools/perf/tests/topology.c
index 74748ed75b2c..0f6e73baab2d 100644
--- a/tools/perf/tests/topology.c
+++ b/tools/perf/tests/topology.c
@@ -40,7 +40,15 @@ static int session_write_header(char *path)
 	session = perf_session__new(&data, false, NULL);
 	TEST_ASSERT_VAL("can't get session", !IS_ERR(session));
 
-	session->evlist = evlist__new_default();
+	perf_pmu__scan(NULL);
+	if (!perf_pmu__hybrid_exist()) {
+		session->evlist = evlist__new_default();
+	} else {
+		struct parse_events_error err;
+
+		session->evlist = evlist__new();
+		parse_events(session->evlist, "cpu_core/cycles/", &err);
+	}
 	TEST_ASSERT_VAL("can't get evlist", session->evlist);
 
 	perf_header__set_feat(&session->header, HEADER_CPU_TOPOLOGY);
-- 
2.17.1