Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1049 insertions, 0 deletions

diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c
new file mode 100644
index 0000000000..f5321fbdee
--- /dev/null
+++ b/tools/perf/tests/pmu-events.c
@@ -0,0 +1,1049 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "math.h"
+#include "parse-events.h"
+#include "pmu.h"
+#include "pmus.h"
+#include "tests.h"
+#include <errno.h>
+#include <stdio.h>
+#include <linux/kernel.h>
+#include <linux/zalloc.h>
+#include "debug.h"
+#include "../pmu-events/pmu-events.h"
+#include <perf/evlist.h>
+#include "util/evlist.h"
+#include "util/expr.h"
+#include "util/hashmap.h"
+#include "util/parse-events.h"
+#include "metricgroup.h"
+#include "stat.h"
+
+struct perf_pmu_test_event {
+	/* used for matching against events from generated pmu-events.c */
+	struct pmu_event event;
+
+	/* used for matching against event aliases */
+	/* extra events for aliases */
+	const char *alias_str;
+
+	/*
+	 * Note: For when PublicDescription does not exist in the JSON, we
+	 * will have no long_desc in pmu_event.long_desc, but long_desc may
+	 * be set in the alias.
+	 */
+	const char *alias_long_desc;
+
+	/* PMU which we should match against */
+	const char *matching_pmu;
+};
+
+struct perf_pmu_test_pmu {
+	struct perf_pmu pmu;
+	struct perf_pmu_test_event const *aliases[10];
+};
+
+static const struct perf_pmu_test_event bp_l1_btb_correct = {
+	.event = {
+		.pmu = "default_core",
+		.name = "bp_l1_btb_correct",
+		.event = "event=0x8a",
+		.desc = "L1 BTB Correction",
+		.topic = "branch",
+	},
+	.alias_str = "event=0x8a",
+	.alias_long_desc = "L1 BTB Correction",
+};
+
+static const struct perf_pmu_test_event bp_l2_btb_correct = {
+	.event = {
+		.pmu = "default_core",
+		.name = "bp_l2_btb_correct",
+		.event = "event=0x8b",
+		.desc = "L2 BTB Correction",
+		.topic = "branch",
+	},
+	.alias_str = "event=0x8b",
+	.alias_long_desc = "L2 BTB Correction",
+};
+
+static const struct perf_pmu_test_event segment_reg_loads_any = {
+	.event = {
+		.pmu = "default_core",
+		.name = "segment_reg_loads.any",
+		.event = "event=0x6,period=200000,umask=0x80",
+		.desc = "Number of segment register loads",
+		.topic = "other",
+	},
+	.alias_str = "event=0x6,period=0x30d40,umask=0x80",
+	.alias_long_desc = "Number of segment register loads",
+};
+
+static const struct perf_pmu_test_event dispatch_blocked_any = {
+	.event = {
+		.pmu = "default_core",
+		.name = "dispatch_blocked.any",
+		.event = "event=0x9,period=200000,umask=0x20",
+		.desc = "Memory cluster signals to block micro-op dispatch for any reason",
+		.topic = "other",
+	},
+	.alias_str = "event=0x9,period=0x30d40,umask=0x20",
+	.alias_long_desc = "Memory cluster signals to block micro-op dispatch for any reason",
+};
+
+static const struct perf_pmu_test_event eist_trans = {
+	.event = {
+		.pmu = "default_core",
+		.name = "eist_trans",
+		.event = "event=0x3a,period=200000,umask=0x0",
+		.desc = "Number of Enhanced Intel SpeedStep(R) Technology (EIST) transitions",
+		.topic = "other",
+	},
+	.alias_str = "event=0x3a,period=0x30d40,umask=0",
+	.alias_long_desc = "Number of Enhanced Intel SpeedStep(R) Technology (EIST) transitions",
+};
+
+static const struct perf_pmu_test_event l3_cache_rd = {
+	.event = {
+		.pmu = "default_core",
+		.name = "l3_cache_rd",
+		.event = "event=0x40",
+		.desc = "L3 cache access, read",
+		.long_desc = "Attributable Level 3 cache access, read",
+		.topic = "cache",
+	},
+	.alias_str = "event=0x40",
+	.alias_long_desc = "Attributable Level 3 cache access, read",
+};
+
+static const struct perf_pmu_test_event *core_events[] = {
+	&bp_l1_btb_correct,
+	&bp_l2_btb_correct,
+	&segment_reg_loads_any,
+	&dispatch_blocked_any,
+	&eist_trans,
+	&l3_cache_rd,
+	NULL
+};
+
+static const struct perf_pmu_test_event uncore_hisi_ddrc_flux_wcmd = {
+	.event = {
+		.name = "uncore_hisi_ddrc.flux_wcmd",
+		.event = "event=0x2",
+		.desc = "DDRC write commands",
+		.topic = "uncore",
+		.long_desc = "DDRC write commands",
+		.pmu = "hisi_sccl,ddrc",
+	},
+	.alias_str = "event=0x2",
+	.alias_long_desc = "DDRC write commands",
+	.matching_pmu = "hisi_sccl1_ddrc2",
+};
+
+static const struct perf_pmu_test_event unc_cbo_xsnp_response_miss_eviction = {
+	.event = {
+		.name = "unc_cbo_xsnp_response.miss_eviction",
+		.event = "event=0x22,umask=0x81",
+		.desc = "A cross-core snoop resulted from L3 Eviction which misses in some processor core",
+		.topic = "uncore",
+		.long_desc = "A cross-core snoop resulted from L3 Eviction which misses in some processor core",
+		.pmu = "uncore_cbox",
+	},
+	.alias_str = "event=0x22,umask=0x81",
+	.alias_long_desc = "A cross-core snoop resulted from L3 Eviction which misses in some processor core",
+	.matching_pmu = "uncore_cbox_0",
+};
+
+static const struct perf_pmu_test_event uncore_hyphen = {
+	.event = {
+		.name = "event-hyphen",
+		.event = "event=0xe0,umask=0x00",
+		.desc = "UNC_CBO_HYPHEN",
+		.topic = "uncore",
+		.long_desc = "UNC_CBO_HYPHEN",
+		.pmu = "uncore_cbox",
+	},
+	.alias_str = "event=0xe0,umask=0",
+	.alias_long_desc = "UNC_CBO_HYPHEN",
+	.matching_pmu = "uncore_cbox_0",
+};
+
+static const struct perf_pmu_test_event uncore_two_hyph = {
+	.event = {
+		.name = "event-two-hyph",
+		.event = "event=0xc0,umask=0x00",
+		.desc = "UNC_CBO_TWO_HYPH",
+		.topic = "uncore",
+		.long_desc = "UNC_CBO_TWO_HYPH",
+		.pmu = "uncore_cbox",
+	},
+	.alias_str = "event=0xc0,umask=0",
+	.alias_long_desc = "UNC_CBO_TWO_HYPH",
+	.matching_pmu = "uncore_cbox_0",
+};
+
+static const struct perf_pmu_test_event uncore_hisi_l3c_rd_hit_cpipe = {
+	.event = {
+		.name = "uncore_hisi_l3c.rd_hit_cpipe",
+		.event = "event=0x7",
+		.desc = "Total read hits",
+		.topic = "uncore",
+		.long_desc = "Total read hits",
+		.pmu = "hisi_sccl,l3c",
+	},
+	.alias_str = "event=0x7",
+	.alias_long_desc = "Total read hits",
+	.matching_pmu = "hisi_sccl3_l3c7",
+};
+
+static const struct perf_pmu_test_event uncore_imc_free_running_cache_miss = {
+	.event = {
+		.name = "uncore_imc_free_running.cache_miss",
+		.event = "event=0x12",
+		.desc = "Total cache misses",
+		.topic = "uncore",
+		.long_desc = "Total cache misses",
+		.pmu = "uncore_imc_free_running",
+	},
+	.alias_str = "event=0x12",
+	.alias_long_desc = "Total cache misses",
+	.matching_pmu = "uncore_imc_free_running_0",
+};
+
+static const struct perf_pmu_test_event uncore_imc_cache_hits = {
+	.event = {
+		.name = "uncore_imc.cache_hits",
+		.event = "event=0x34",
+		.desc = "Total cache hits",
+		.topic = "uncore",
+		.long_desc = "Total cache hits",
+		.pmu = "uncore_imc",
+	},
+	.alias_str = "event=0x34",
+	.alias_long_desc = "Total cache hits",
+	.matching_pmu = "uncore_imc_0",
+};
+
+static const struct perf_pmu_test_event *uncore_events[] = {
+	&uncore_hisi_ddrc_flux_wcmd,
+	&unc_cbo_xsnp_response_miss_eviction,
+	&uncore_hyphen,
+	&uncore_two_hyph,
+	&uncore_hisi_l3c_rd_hit_cpipe,
+	&uncore_imc_free_running_cache_miss,
+	&uncore_imc_cache_hits,
+	NULL
+};
+
+static const struct perf_pmu_test_event sys_ddr_pmu_write_cycles = {
+	.event = {
+		.name = "sys_ddr_pmu.write_cycles",
+		.event = "event=0x2b",
+		.desc = "ddr write-cycles event",
+		.topic = "uncore",
+		.pmu = "uncore_sys_ddr_pmu",
+		.compat = "v8",
+	},
+	.alias_str = "event=0x2b",
+	.alias_long_desc = "ddr write-cycles event",
+	.matching_pmu = "uncore_sys_ddr_pmu",
+};
+
+static const struct perf_pmu_test_event sys_ccn_pmu_read_cycles = {
+	.event = {
+		.name = "sys_ccn_pmu.read_cycles",
+		.event = "config=0x2c",
+		.desc = "ccn read-cycles event",
+		.topic = "uncore",
+		.pmu = "uncore_sys_ccn_pmu",
+		.compat = "0x01",
+	},
+	.alias_str = "config=0x2c",
+	.alias_long_desc = "ccn read-cycles event",
+	.matching_pmu = "uncore_sys_ccn_pmu",
+};
+
+static const struct perf_pmu_test_event *sys_events[] = {
+	&sys_ddr_pmu_write_cycles,
+	&sys_ccn_pmu_read_cycles,
+	NULL
+};
+
+static bool is_same(const char *reference, const char *test)
+{
+	if (!reference && !test)
+		return true;
+
+	if (reference && !test)
+		return false;
+
+	if (!reference && test)
+		return false;
+
+	return !strcmp(reference, test);
+}
+
+static int compare_pmu_events(const struct pmu_event *e1, const struct pmu_event *e2)
+{
+	if (!is_same(e1->name, e2->name)) {
+		pr_debug2("testing event e1 %s: mismatched name string, %s vs %s\n",
+			  e1->name, e1->name, e2->name);
+		return -1;
+	}
+
+	if (!is_same(e1->compat, e2->compat)) {
+		pr_debug2("testing event e1 %s: mismatched compat string, %s vs %s\n",
+			  e1->name, e1->compat, e2->compat);
+		return -1;
+	}
+
+	if (!is_same(e1->event, e2->event)) {
+		pr_debug2("testing event e1 %s: mismatched event, %s vs %s\n",
+			  e1->name, e1->event, e2->event);
+		return -1;
+	}
+
+	if (!is_same(e1->desc, e2->desc)) {
+		pr_debug2("testing event e1 %s: mismatched desc, %s vs %s\n",
+			  e1->name, e1->desc, e2->desc);
+		return -1;
+	}
+
+	if (!is_same(e1->topic, e2->topic)) {
+		pr_debug2("testing event e1 %s: mismatched topic, %s vs %s\n",
+			  e1->name, e1->topic, e2->topic);
+		return -1;
+	}
+
+	if (!is_same(e1->long_desc, e2->long_desc)) {
+		pr_debug2("testing event e1 %s: mismatched long_desc, %s vs %s\n",
+			  e1->name, e1->long_desc, e2->long_desc);
+		return -1;
+	}
+
+	if (!is_same(e1->pmu, e2->pmu)) {
+		pr_debug2("testing event e1 %s: mismatched pmu string, %s vs %s\n",
+			  e1->name, e1->pmu, e2->pmu);
+		return -1;
+	}
+
+	if (!is_same(e1->unit, e2->unit)) {
+		pr_debug2("testing event e1 %s: mismatched unit, %s vs %s\n",
+			  e1->name, e1->unit, e2->unit);
+		return -1;
+	}
+
+	if (e1->perpkg != e2->perpkg) {
+		pr_debug2("testing event e1 %s: mismatched perpkg, %d vs %d\n",
+			  e1->name, e1->perpkg, e2->perpkg);
+		return -1;
+	}
+
+	if (e1->deprecated != e2->deprecated) {
+		pr_debug2("testing event e1 %s: mismatched deprecated, %d vs %d\n",
+			  e1->name, e1->deprecated, e2->deprecated);
+		return -1;
+	}
+
+	return 0;
+}
+
+static int compare_alias_to_test_event(struct pmu_event_info *alias,
+				struct perf_pmu_test_event const *test_event,
+				char const *pmu_name)
+{
+	struct pmu_event const *event = &test_event->event;
+
+	/* An alias was found, ensure everything is in order */
+	if (!is_same(alias->name, event->name)) {
+		pr_debug("testing aliases PMU %s: mismatched name, %s vs %s\n",
+			  pmu_name, alias->name, event->name);
+		return -1;
+	}
+
+	if (!is_same(alias->desc, event->desc)) {
+		pr_debug("testing aliases PMU %s: mismatched desc, %s vs %s\n",
+			  pmu_name, alias->desc, event->desc);
+		return -1;
+	}
+
+	if (!is_same(alias->long_desc, test_event->alias_long_desc)) {
+		pr_debug("testing aliases PMU %s: mismatched long_desc, %s vs %s\n",
+			  pmu_name, alias->long_desc,
+			  test_event->alias_long_desc);
+		return -1;
+	}
+
+	if (!is_same(alias->topic, event->topic)) {
+		pr_debug("testing aliases PMU %s: mismatched topic, %s vs %s\n",
+			  pmu_name, alias->topic, event->topic);
+		return -1;
+	}
+
+	if (!is_same(alias->str, test_event->alias_str)) {
+		pr_debug("testing aliases PMU %s: mismatched str, %s vs %s\n",
+			  pmu_name, alias->str, test_event->alias_str);
+		return -1;
+	}
+
+	if (!is_same(alias->long_desc, test_event->alias_long_desc)) {
+		pr_debug("testing aliases PMU %s: mismatched long desc, %s vs %s\n",
+			  pmu_name, alias->str, test_event->alias_long_desc);
+		return -1;
+	}
+
+	if (!is_same(alias->pmu_name, test_event->event.pmu) &&
+	    !is_same(alias->pmu_name, "default_core")) {
+		pr_debug("testing aliases PMU %s: mismatched pmu_name, %s vs %s\n",
+			  pmu_name, alias->pmu_name, test_event->event.pmu);
+		return -1;
+	}
+
+	return 0;
+}
+
+static int test__pmu_event_table_core_callback(const struct pmu_event *pe,
+					       const struct pmu_events_table *table __maybe_unused,
+					       void *data)
+{
+	int *map_events = data;
+	struct perf_pmu_test_event const **test_event_table;
+	bool found = false;
+
+	if (strcmp(pe->pmu, "default_core"))
+		test_event_table = &uncore_events[0];
+	else
+		test_event_table = &core_events[0];
+
+	for (; *test_event_table; test_event_table++) {
+		struct perf_pmu_test_event const *test_event = *test_event_table;
+		struct pmu_event const *event = &test_event->event;
+
+		if (strcmp(pe->name, event->name))
+			continue;
+		found = true;
+		(*map_events)++;
+
+		if (compare_pmu_events(pe, event))
+			return -1;
+
+		pr_debug("testing event table %s: pass\n", pe->name);
+	}
+	if (!found) {
+		pr_err("testing event table: could not find event %s\n", pe->name);
+		return -1;
+	}
+	return 0;
+}
+
+static int test__pmu_event_table_sys_callback(const struct pmu_event *pe,
+					      const struct pmu_events_table *table __maybe_unused,
+					      void *data)
+{
+	int *map_events = data;
+	struct perf_pmu_test_event const **test_event_table;
+	bool found = false;
+
+	test_event_table = &sys_events[0];
+
+	for (; *test_event_table; test_event_table++) {
+		struct perf_pmu_test_event const *test_event = *test_event_table;
+		struct pmu_event const *event = &test_event->event;
+
+		if (strcmp(pe->name, event->name))
+			continue;
+		found = true;
+		(*map_events)++;
+
+		if (compare_pmu_events(pe, event))
+			return TEST_FAIL;
+
+		pr_debug("testing sys event table %s: pass\n", pe->name);
+	}
+	if (!found) {
+		pr_debug("testing sys event table: could not find event %s\n", pe->name);
+		return TEST_FAIL;
+	}
+	return TEST_OK;
+}
+
+/* Verify generated events from pmu-events.c are as expected */
+static int test__pmu_event_table(struct test_suite *test __maybe_unused,
+				 int subtest __maybe_unused)
+{
+	const struct pmu_events_table *sys_event_table =
+		find_sys_events_table("pmu_events__test_soc_sys");
+	const struct pmu_events_table *table = find_core_events_table("testarch", "testcpu");
+	int map_events = 0, expected_events, err;
+
+	/* ignore 3x sentinels */
+	expected_events = ARRAY_SIZE(core_events) +
+			  ARRAY_SIZE(uncore_events) +
+			  ARRAY_SIZE(sys_events) - 3;
+
+	if (!table || !sys_event_table)
+		return -1;
+
+	err = pmu_events_table__for_each_event(table, /*pmu=*/ NULL,
+					      test__pmu_event_table_core_callback,
+					      &map_events);
+	if (err)
+		return err;
+
+	err = pmu_events_table__for_each_event(sys_event_table, /*pmu=*/ NULL,
+					      test__pmu_event_table_sys_callback,
+					      &map_events);
+	if (err)
+		return err;
+
+	if (map_events != expected_events) {
+		pr_err("testing event table: found %d, but expected %d\n",
+		       map_events, expected_events);
+		return TEST_FAIL;
+	}
+
+	return 0;
+}
+
+struct test_core_pmu_event_aliases_cb_args {
+	struct perf_pmu_test_event const *test_event;
+	int *count;
+};
+
+static int test_core_pmu_event_aliases_cb(void *state, struct pmu_event_info *alias)
+{
+	struct test_core_pmu_event_aliases_cb_args *args = state;
+
+	if (compare_alias_to_test_event(alias, args->test_event, alias->pmu->name))
+		return -1;
+	(*args->count)++;
+	pr_debug2("testing aliases core PMU %s: matched event %s\n",
+		alias->pmu_name, alias->name);
+	return 0;
+}
+
+/* Verify aliases are as expected */
+static int __test_core_pmu_event_aliases(const char *pmu_name, int *count)
+{
+	struct perf_pmu_test_event const **test_event_table;
+	struct perf_pmu *pmu;
+	int res = 0;
+	const struct pmu_events_table *table = find_core_events_table("testarch", "testcpu");
+
+	if (!table)
+		return -1;
+
+	test_event_table = &core_events[0];
+
+	pmu = zalloc(sizeof(*pmu));
+	if (!pmu)
+		return -1;
+
+	INIT_LIST_HEAD(&pmu->format);
+	INIT_LIST_HEAD(&pmu->aliases);
+	INIT_LIST_HEAD(&pmu->caps);
+	INIT_LIST_HEAD(&pmu->list);
+	pmu->name = strdup(pmu_name);
+	pmu->is_core = true;
+
+	pmu->events_table = table;
+	pmu_add_cpu_aliases_table(pmu, table);
+	pmu->cpu_aliases_added = true;
+	pmu->sysfs_aliases_loaded = true;
+
+	res = pmu_events_table__find_event(table, pmu, "bp_l1_btb_correct", NULL, NULL);
+	if (res != 0) {
+		pr_debug("Missing test event in test architecture");
+		return res;
+	}
+	for (; *test_event_table; test_event_table++) {
+		struct perf_pmu_test_event test_event = **test_event_table;
+		struct pmu_event const *event = &test_event.event;
+		struct test_core_pmu_event_aliases_cb_args args = {
+			.test_event = &test_event,
+			.count = count,
+		};
+		int err;
+
+		test_event.event.pmu = pmu_name;
+		err = perf_pmu__find_event(pmu, event->name, &args,
+					   test_core_pmu_event_aliases_cb);
+		if (err)
+			res = err;
+	}
+	perf_pmu__delete(pmu);
+
+	return res;
+}
+
+static int __test_uncore_pmu_event_aliases(struct perf_pmu_test_pmu *test_pmu)
+{
+	int alias_count = 0, to_match_count = 0, matched_count = 0;
+	struct perf_pmu_test_event const **table;
+	struct perf_pmu *pmu = &test_pmu->pmu;
+	const char *pmu_name = pmu->name;
+	const struct pmu_events_table *events_table;
+	int res = 0;
+
+	events_table = find_core_events_table("testarch", "testcpu");
+	if (!events_table)
+		return -1;
+	pmu->events_table = events_table;
+	pmu_add_cpu_aliases_table(pmu, events_table);
+	pmu->cpu_aliases_added = true;
+	pmu->sysfs_aliases_loaded = true;
+	pmu_add_sys_aliases(pmu);
+
+	/* Count how many aliases we generated */
+	alias_count = perf_pmu__num_events(pmu);
+
+	/* Count how many aliases we expect from the known table */
+	for (table = &test_pmu->aliases[0]; *table; table++)
+		to_match_count++;
+
+	if (alias_count != to_match_count) {
+		pr_debug("testing aliases uncore PMU %s: mismatch expected aliases (%d) vs found (%d)\n",
+			 pmu_name, to_match_count, alias_count);
+		return -1;
+	}
+
+	for (table = &test_pmu->aliases[0]; *table; table++) {
+		struct perf_pmu_test_event test_event = **table;
+		struct pmu_event const *event = &test_event.event;
+		int err;
+		struct test_core_pmu_event_aliases_cb_args args = {
+			.test_event = &test_event,
+			.count = &matched_count,
+		};
+
+		err = perf_pmu__find_event(pmu, event->name, &args,
+					   test_core_pmu_event_aliases_cb);
+		if (err) {
+			res = err;
+			pr_debug("testing aliases uncore PMU %s: could not match alias %s\n",
+				 pmu_name, event->name);
+			return -1;
+		}
+	}
+
+	if (alias_count != matched_count) {
+		pr_debug("testing aliases uncore PMU %s: mismatch found aliases (%d) vs matched (%d)\n",
+			 pmu_name, matched_count, alias_count);
+		res = -1;
+	}
+	return res;
+}
+
+static struct perf_pmu_test_pmu test_pmus[] = {
+	{
+		.pmu = {
+			.name = "hisi_sccl1_ddrc2",
+			.is_uncore = 1,
+		},
+		.aliases = {
+			&uncore_hisi_ddrc_flux_wcmd,
+		},
+	},
+	{
+		.pmu = {
+			.name = "uncore_cbox_0",
+			.is_uncore = 1,
+		},
+		.aliases = {
+			&unc_cbo_xsnp_response_miss_eviction,
+			&uncore_hyphen,
+			&uncore_two_hyph,
+		},
+	},
+	{
+		.pmu = {
+			.name = "hisi_sccl3_l3c7",
+			.is_uncore = 1,
+		},
+		.aliases = {
+			&uncore_hisi_l3c_rd_hit_cpipe,
+		},
+	},
+	{
+		.pmu = {
+			.name = "uncore_imc_free_running_0",
+			.is_uncore = 1,
+		},
+		.aliases = {
+			&uncore_imc_free_running_cache_miss,
+		},
+	},
+	{
+		.pmu = {
+			.name = "uncore_imc_0",
+			.is_uncore = 1,
+		},
+		.aliases = {
+			&uncore_imc_cache_hits,
+		},
+	},
+	{
+		.pmu = {
+			.name = "uncore_sys_ddr_pmu0",
+			.is_uncore = 1,
+			.id = "v8",
+		},
+		.aliases = {
+			&sys_ddr_pmu_write_cycles,
+		},
+	},
+	{
+		.pmu = {
+			.name = "uncore_sys_ccn_pmu4",
+			.is_uncore = 1,
+			.id = "0x01",
+		},
+		.aliases = {
+			&sys_ccn_pmu_read_cycles,
+		},
+	},
+};
+
+/* Test that aliases generated are as expected */
+static int test__aliases(struct test_suite *test __maybe_unused,
+			int subtest __maybe_unused)
+{
+	struct perf_pmu *pmu = NULL;
+	unsigned long i;
+
+	while ((pmu = perf_pmus__scan_core(pmu)) != NULL) {
+		int count = 0;
+
+		if (list_empty(&pmu->format)) {
+			pr_debug2("skipping testing core PMU %s\n", pmu->name);
+			continue;
+		}
+
+		if (__test_core_pmu_event_aliases(pmu->name, &count)) {
+			pr_debug("testing core PMU %s aliases: failed\n", pmu->name);
+			return -1;
+		}
+
+		if (count == 0) {
+			pr_debug("testing core PMU %s aliases: no events to match\n",
+				  pmu->name);
+			return -1;
+		}
+
+		pr_debug("testing core PMU %s aliases: pass\n", pmu->name);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(test_pmus); i++) {
+		int res;
+
+		INIT_LIST_HEAD(&test_pmus[i].pmu.format);
+		INIT_LIST_HEAD(&test_pmus[i].pmu.aliases);
+		INIT_LIST_HEAD(&test_pmus[i].pmu.caps);
+
+		res = __test_uncore_pmu_event_aliases(&test_pmus[i]);
+		if (res)
+			return res;
+	}
+
+	return 0;
+}
+
+static bool is_number(const char *str)
+{
+	char *end_ptr;
+	double v;
+
+	errno = 0;
+	v = strtod(str, &end_ptr);
+	(void)v; // We're not interested in this value, only if it is valid
+	return errno == 0 && end_ptr != str;
+}
+
+static int check_parse_id(const char *id, struct parse_events_error *error,
+			  struct perf_pmu *fake_pmu)
+{
+	struct evlist *evlist;
+	int ret;
+	char *dup, *cur;
+
+	/* Numbers are always valid. */
+	if (is_number(id))
+		return 0;
+
+	evlist = evlist__new();
+	if (!evlist)
+		return -ENOMEM;
+
+	dup = strdup(id);
+	if (!dup)
+		return -ENOMEM;
+
+	for (cur = strchr(dup, '@') ; cur; cur = strchr(++cur, '@'))
+		*cur = '/';
+
+	ret = __parse_events(evlist, dup, /*pmu_filter=*/NULL, error, fake_pmu,
+			     /*warn_if_reordered=*/true);
+	free(dup);
+
+	evlist__delete(evlist);
+	return ret;
+}
+
+static int check_parse_fake(const char *id)
+{
+	struct parse_events_error error;
+	int ret;
+
+	parse_events_error__init(&error);
+	ret = check_parse_id(id, &error, &perf_pmu__fake);
+	parse_events_error__exit(&error);
+	return ret;
+}
+
+struct metric {
+	struct list_head list;
+	struct metric_ref metric_ref;
+};
+
+static int test__parsing_callback(const struct pmu_metric *pm,
+				  const struct pmu_metrics_table *table,
+				  void *data)
+{
+	int *failures = data;
+	int k;
+	struct evlist *evlist;
+	struct perf_cpu_map *cpus;
+	struct evsel *evsel;
+	struct rblist metric_events = {
+		.nr_entries = 0,
+	};
+	int err = 0;
+
+	if (!pm->metric_expr)
+		return 0;
+
+	pr_debug("Found metric '%s'\n", pm->metric_name);
+	(*failures)++;
+
+	/*
+	 * We need to prepare evlist for stat mode running on CPU 0
+	 * because that's where all the stats are going to be created.
+	 */
+	evlist = evlist__new();
+	if (!evlist)
+		return -ENOMEM;
+
+	cpus = perf_cpu_map__new("0");
+	if (!cpus) {
+		evlist__delete(evlist);
+		return -ENOMEM;
+	}
+
+	perf_evlist__set_maps(&evlist->core, cpus, NULL);
+
+	err = metricgroup__parse_groups_test(evlist, table, pm->metric_name, &metric_events);
+	if (err) {
+		if (!strcmp(pm->metric_name, "M1") || !strcmp(pm->metric_name, "M2") ||
+		    !strcmp(pm->metric_name, "M3")) {
+			(*failures)--;
+			pr_debug("Expected broken metric %s skipping\n", pm->metric_name);
+			err = 0;
+		}
+		goto out_err;
+	}
+
+	err = evlist__alloc_stats(/*config=*/NULL, evlist, /*alloc_raw=*/false);
+	if (err)
+		goto out_err;
+	/*
+	 * Add all ids with a made up value. The value may trigger divide by
+	 * zero when subtracted and so try to make them unique.
+	 */
+	k = 1;
+	evlist__alloc_aggr_stats(evlist, 1);
+	evlist__for_each_entry(evlist, evsel) {
+		evsel->stats->aggr->counts.val = k;
+		if (evsel__name_is(evsel, "duration_time"))
+			update_stats(&walltime_nsecs_stats, k);
+		k++;
+	}
+	evlist__for_each_entry(evlist, evsel) {
+		struct metric_event *me = metricgroup__lookup(&metric_events, evsel, false);
+
+		if (me != NULL) {
+			struct metric_expr *mexp;
+
+			list_for_each_entry (mexp, &me->head, nd) {
+				if (strcmp(mexp->metric_name, pm->metric_name))
+					continue;
+				pr_debug("Result %f\n", test_generic_metric(mexp, 0));
+				err = 0;
+				(*failures)--;
+				goto out_err;
+			}
+		}
+	}
+	pr_debug("Didn't find parsed metric %s", pm->metric_name);
+	err = 1;
+out_err:
+	if (err)
+		pr_debug("Broken metric %s\n", pm->metric_name);
+
+	/* ... cleanup. */
+	metricgroup__rblist_exit(&metric_events);
+	evlist__free_stats(evlist);
+	perf_cpu_map__put(cpus);
+	evlist__delete(evlist);
+	return err;
+}
+
+static int test__parsing(struct test_suite *test __maybe_unused,
+			 int subtest __maybe_unused)
+{
+	int failures = 0;
+
+	pmu_for_each_core_metric(test__parsing_callback, &failures);
+	pmu_for_each_sys_metric(test__parsing_callback, &failures);
+
+	return failures == 0 ? TEST_OK : TEST_FAIL;
+}
+
+struct test_metric {
+	const char *str;
+};
+
+static struct test_metric metrics[] = {
+	{ "(unc_p_power_state_occupancy.cores_c0 / unc_p_clockticks) * 100." },
+	{ "imx8_ddr0@read\\-cycles@ * 4 * 4", },
+	{ "imx8_ddr0@axid\\-read\\,axi_mask\\=0xffff\\,axi_id\\=0x0000@ * 4", },
+	{ "(cstate_pkg@c2\\-residency@ / msr@tsc@) * 100", },
+	{ "(imx8_ddr0@read\\-cycles@ + imx8_ddr0@write\\-cycles@)", },
+};
+
+static int metric_parse_fake(const char *metric_name, const char *str)
+{
+	struct expr_parse_ctx *ctx;
+	struct hashmap_entry *cur;
+	double result;
+	int ret = -1;
+	size_t bkt;
+	int i;
+
+	pr_debug("parsing '%s': '%s'\n", metric_name, str);
+
+	ctx = expr__ctx_new();
+	if (!ctx) {
+		pr_debug("expr__ctx_new failed");
+		return TEST_FAIL;
+	}
+	ctx->sctx.is_test = true;
+	if (expr__find_ids(str, NULL, ctx) < 0) {
+		pr_err("expr__find_ids failed\n");
+		return -1;
+	}
+
+	/*
+	 * Add all ids with a made up value. The value may
+	 * trigger divide by zero when subtracted and so try to
+	 * make them unique.
+	 */
+	i = 1;
+	hashmap__for_each_entry(ctx->ids, cur, bkt)
+		expr__add_id_val(ctx, strdup(cur->pkey), i++);
+
+	hashmap__for_each_entry(ctx->ids, cur, bkt) {
+		if (check_parse_fake(cur->pkey)) {
+			pr_err("check_parse_fake failed\n");
+			goto out;
+		}
+	}
+
+	ret = 0;
+	if (expr__parse(&result, ctx, str)) {
+		/*
+		 * Parsing failed, make numbers go from large to small which can
+		 * resolve divide by zero issues.
+		 */
+		i = 1024;
+		hashmap__for_each_entry(ctx->ids, cur, bkt)
+			expr__add_id_val(ctx, strdup(cur->pkey), i--);
+		if (expr__parse(&result, ctx, str)) {
+			pr_err("expr__parse failed for %s\n", metric_name);
+			/* The following have hard to avoid divide by zero. */
+			if (!strcmp(metric_name, "tma_clears_resteers") ||
+			    !strcmp(metric_name, "tma_mispredicts_resteers"))
+				ret = 0;
+			else
+				ret = -1;
+		}
+	}
+
+out:
+	expr__ctx_free(ctx);
+	return ret;
+}
+
+static int test__parsing_fake_callback(const struct pmu_metric *pm,
+				       const struct pmu_metrics_table *table __maybe_unused,
+				       void *data __maybe_unused)
+{
+	return metric_parse_fake(pm->metric_name, pm->metric_expr);
+}
+
+/*
+ * 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)
+{
+	int err = 0;
+
+	for (size_t i = 0; i < ARRAY_SIZE(metrics); i++) {
+		err = metric_parse_fake("", metrics[i].str);
+		if (err)
+			return err;
+	}
+
+	err = pmu_for_each_core_metric(test__parsing_fake_callback, NULL);
+	if (err)
+		return err;
+
+	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, }
+};
+
+struct test_suite suite__pmu_events = {
+	.desc = "PMU events",
+	.test_cases = pmu_events_tests,
+};