perf pmus: Fake PMU clean up

Rather than passing a fake PMU around, just pass that the fake PMU
should be used - true when doing testing. Move the fake PMU into
pmus.[ch] and try to abstract the PMU's properties in pmu.c, ie so
there is less "if fake_pmu" in non-PMU code. Give the fake PMU a made
up type number.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Benjamin Gray <bgray@linux.ibm.com>
Cc: Changbin Du <changbin.du@huawei.com>
Cc: Clément Le Goffic <clement.legoffic@foss.st.com>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Dominique Martinet <asmadeus@codewreck.org>
Cc: Dr. David Alan Gilbert <linux@treblig.org>
Cc: Howard Chu <howardchu95@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Junhao He <hejunhao3@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Sun Haiyong <sunhaiyong@loongson.cn>
Cc: Tiezhu Yang <yangtiezhu@loongson.cn>
Cc: Veronika Molnarova <vmolnaro@redhat.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xu Yang <xu.yang_2@nxp.com>
Cc: Yang Jihong <yangjihong@bytedance.com>
Cc: Yicong Yang <yangyicong@hisilicon.com>
Cc: Ze Gao <zegao2021@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20240907050830.6752-3-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

2 files changed, 7 insertions, 9 deletions

diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index e228511c85a5..9e3086d02150 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -2500,7 +2500,7 @@ static int test_event(const struct evlist_test *e)
 		return TEST_FAIL;
 	}
 	parse_events_error__init(&err);
-	ret = __parse_events(evlist, e->name, /*pmu_filter=*/NULL, &err, /*fake_pmu=*/NULL,
+	ret = __parse_events(evlist, e->name, /*pmu_filter=*/NULL, &err, /*fake_pmu=*/false,
 			     /*warn_if_reordered=*/true, /*fake_tp=*/true);
 	if (ret) {
 		pr_debug("failed to parse event '%s', err %d\n", e->name, ret);
@@ -2529,7 +2529,7 @@ static int test_event_fake_pmu(const char *str)
 
 	parse_events_error__init(&err);
 	ret = __parse_events(evlist, str, /*pmu_filter=*/NULL, &err,
-			     &perf_pmu__fake, /*warn_if_reordered=*/true,
+			     /*fake_pmu=*/true, /*warn_if_reordered=*/true,
 			     /*fake_tp=*/true);
 	if (ret) {
 		pr_debug("failed to parse event '%s', err %d\n",
diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c
index ff3e7bc0a77f..db004d26fcb0 100644
--- a/tools/perf/tests/pmu-events.c
+++ b/tools/perf/tests/pmu-events.c
@@ -819,8 +819,7 @@ static bool is_number(const char *str)
 	return errno == 0 && end_ptr != str;
 }
 
-static int check_parse_id(const char *id, struct parse_events_error *error,
-			  struct perf_pmu *fake_pmu)
+static int check_parse_id(const char *id, struct parse_events_error *error)
 {
 	struct evlist *evlist;
 	int ret;
@@ -841,7 +840,7 @@ static int check_parse_id(const char *id, struct parse_events_error *error,
 	for (cur = strchr(dup, '@') ; cur; cur = strchr(++cur, '@'))
 		*cur = '/';
 
-	ret = __parse_events(evlist, dup, /*pmu_filter=*/NULL, error, fake_pmu,
+	ret = __parse_events(evlist, dup, /*pmu_filter=*/NULL, error, /*fake_pmu=*/true,
 			     /*warn_if_reordered=*/true, /*fake_tp=*/false);
 	free(dup);
 
@@ -855,7 +854,7 @@ static int check_parse_fake(const char *id)
 	int ret;
 
 	parse_events_error__init(&error);
-	ret = check_parse_id(id, &error, &perf_pmu__fake);
+	ret = check_parse_id(id, &error);
 	parse_events_error__exit(&error);
 	return ret;
 }
@@ -1051,9 +1050,8 @@ static int test__parsing_fake_callback(const struct pmu_metric *pm,
 }
 
 /*
- * Parse all the metrics for current architecture,
- * or all defined cpus via the 'fake_pmu'
- * in parse_events.
+ * Parse all the metrics for current architecture, or all defined cpus via the
+ * 'fake_pmu' in parse_events.
  */
 static int test__parsing_fake(struct test_suite *test __maybe_unused,
 			      int subtest __maybe_unused)