From 62e10d937d6d5d0f100d6d13c17b4376d1466044 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Sun, 19 Feb 2023 01:28:31 -0800
Subject: [PATCH] perf pmu-events: Test parsing metric thresholds with the fake
 PMU

Test the correctness of metric thresholds by testing them all with the
fake PMU logic.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Eduard Zingerman <eddyz87@gmail.com>
Cc: Florian Fischer <florian.fischer@muhq.space>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-stm32@st-md-mailman.stormreply.com
Link: https://lore.kernel.org/r/20230219092848.639226-35-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/tests/pmu-events.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c
index 521557c396bce..db2fed0c69935 100644
--- a/tools/perf/tests/pmu-events.c
+++ b/tools/perf/tests/pmu-events.c
@@ -1021,12 +1021,34 @@ static int test__parsing_fake(struct test_suite *test __maybe_unused,
 	return pmu_for_each_sys_metric(test__parsing_fake_callback, NULL);
 }
 
+static int test__parsing_threshold_callback(const struct pmu_metric *pm,
+					const struct pmu_metrics_table *table __maybe_unused,
+					void *data __maybe_unused)
+{
+	if (!pm->metric_threshold)
+		return 0;
+	return metric_parse_fake(pm->metric_name, pm->metric_threshold);
+}
+
+static int test__parsing_threshold(struct test_suite *test __maybe_unused,
+			      int subtest __maybe_unused)
+{
+	int err = 0;
+
+	err = pmu_for_each_core_metric(test__parsing_threshold_callback, NULL);
+	if (err)
+		return err;
+
+	return pmu_for_each_sys_metric(test__parsing_threshold_callback, NULL);
+}
+
 static struct test_case pmu_events_tests[] = {
 	TEST_CASE("PMU event table sanity", pmu_event_table),
 	TEST_CASE("PMU event map aliases", aliases),
 	TEST_CASE_REASON("Parsing of PMU event table metrics", parsing,
 			 "some metrics failed"),
 	TEST_CASE("Parsing of PMU event table metrics with fake PMUs", parsing_fake),
+	TEST_CASE("Parsing of metric thresholds with fake PMUs", parsing_threshold),
 	{ .name = NULL, }
 };