[PATCH v9 4/7] perf test: Make matching_pmu effective

From: Jing Zhang
Date: Mon Sep 18 2023 - 07:53:37 EST


The perf_pmu_test_event.matching_pmu didn't work. No matter what its
value is, it does not affect the test results. So let matching_pmu be
used for matching perf_pmu_test_pmu.pmu.name.

Signed-off-by: Jing Zhang <renyu.zj@xxxxxxxxxxxxxxxxx>
Reviewed-by: John Garry <john.g.garry@xxxxxxxxxx>
---
tools/perf/tests/pmu-events.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c
index f5321fb..0cf572f 100644
--- a/tools/perf/tests/pmu-events.c
+++ b/tools/perf/tests/pmu-events.c
@@ -245,7 +245,7 @@ struct perf_pmu_test_pmu {
},
.alias_str = "event=0x2b",
.alias_long_desc = "ddr write-cycles event",
- .matching_pmu = "uncore_sys_ddr_pmu",
+ .matching_pmu = "uncore_sys_ddr_pmu0",
};

static const struct perf_pmu_test_event sys_ccn_pmu_read_cycles = {
@@ -259,7 +259,7 @@ struct perf_pmu_test_pmu {
},
.alias_str = "config=0x2c",
.alias_long_desc = "ccn read-cycles event",
- .matching_pmu = "uncore_sys_ccn_pmu",
+ .matching_pmu = "uncore_sys_ccn_pmu4",
};

static const struct perf_pmu_test_event *sys_events[] = {
@@ -615,6 +615,12 @@ static int __test_uncore_pmu_event_aliases(struct perf_pmu_test_pmu *test_pmu)
.count = &matched_count,
};

+ if (strcmp(pmu_name, test_event.matching_pmu)) {
+ pr_debug("testing aliases uncore PMU %s: mismatched matching_pmu, %s vs %s\n",
+ pmu_name, test_event.matching_pmu, pmu_name);
+ return -1;
+ }
+
err = perf_pmu__find_event(pmu, event->name, &args,
test_core_pmu_event_aliases_cb);
if (err) {
--
1.8.3.1