1 files changed, 504 insertions, 159 deletions

diff --git a/tools/perf/tests/pmu.c b/tools/perf/tests/pmu.c
index 8f18127d876a..4a9f8e090cf4 100644
--- a/tools/perf/tests/pmu.c
+++ b/tools/perf/tests/pmu.c
@@ -1,204 +1,549 @@
 // SPDX-License-Identifier: GPL-2.0
+#include "evlist.h"
+#include "evsel.h"
 #include "parse-events.h"
 #include "pmu.h"
+#include "pmus.h"
 #include "tests.h"
+#include "debug.h"
+#include "fncache.h"
+#include <api/fs/fs.h>
+#include <ctype.h>
+#include <dirent.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <stdio.h>
-#include <linux/kernel.h>
-#include <linux/limits.h>
-#include <linux/zalloc.h>
-
-/* Simulated format definitions. */
-static struct test_format {
-	const char *name;
-	const char *value;
-} test_formats[] = {
-	{ "krava01", "config:0-1,62-63\n", },
-	{ "krava02", "config:10-17\n", },
-	{ "krava03", "config:5\n", },
-	{ "krava11", "config1:0,2,4,6,8,20-28\n", },
-	{ "krava12", "config1:63\n", },
-	{ "krava13", "config1:45-47\n", },
-	{ "krava21", "config2:0-3,10-13,20-23,30-33,40-43,50-53,60-63\n", },
-	{ "krava22", "config2:8,18,48,58\n", },
-	{ "krava23", "config2:28-29,38\n", },
-};
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/types.h>
 
-/* Simulated users input. */
-static struct parse_events_term test_terms[] = {
-	{
-		.config    = "krava01",
-		.val.num   = 15,
-		.type_val  = PARSE_EVENTS__TERM_TYPE_NUM,
-		.type_term = PARSE_EVENTS__TERM_TYPE_USER,
-	},
-	{
-		.config    = "krava02",
-		.val.num   = 170,
-		.type_val  = PARSE_EVENTS__TERM_TYPE_NUM,
-		.type_term = PARSE_EVENTS__TERM_TYPE_USER,
-	},
-	{
-		.config    = "krava03",
-		.val.num   = 1,
-		.type_val  = PARSE_EVENTS__TERM_TYPE_NUM,
-		.type_term = PARSE_EVENTS__TERM_TYPE_USER,
-	},
-	{
-		.config    = "krava11",
-		.val.num   = 27,
-		.type_val  = PARSE_EVENTS__TERM_TYPE_NUM,
-		.type_term = PARSE_EVENTS__TERM_TYPE_USER,
-	},
-	{
-		.config    = "krava12",
-		.val.num   = 1,
-		.type_val  = PARSE_EVENTS__TERM_TYPE_NUM,
-		.type_term = PARSE_EVENTS__TERM_TYPE_USER,
-	},
-	{
-		.config    = "krava13",
-		.val.num   = 2,
-		.type_val  = PARSE_EVENTS__TERM_TYPE_NUM,
-		.type_term = PARSE_EVENTS__TERM_TYPE_USER,
-	},
-	{
-		.config    = "krava21",
-		.val.num   = 119,
-		.type_val  = PARSE_EVENTS__TERM_TYPE_NUM,
-		.type_term = PARSE_EVENTS__TERM_TYPE_USER,
-	},
-	{
-		.config    = "krava22",
-		.val.num   = 11,
-		.type_val  = PARSE_EVENTS__TERM_TYPE_NUM,
-		.type_term = PARSE_EVENTS__TERM_TYPE_USER,
-	},
-	{
-		.config    = "krava23",
-		.val.num   = 2,
-		.type_val  = PARSE_EVENTS__TERM_TYPE_NUM,
-		.type_term = PARSE_EVENTS__TERM_TYPE_USER,
-	},
-};
+/* Cleanup test PMU directory. */
+static int test_pmu_put(const char *dir, struct perf_pmu *pmu)
+{
+	char buf[PATH_MAX + 20];
+	int ret;
+
+	if (scnprintf(buf, sizeof(buf), "rm -fr %s", dir) < 0) {
+		pr_err("Failure to set up buffer for \"%s\"\n", dir);
+		return -EINVAL;
+	}
+	ret = system(buf);
+	if (ret)
+		pr_err("Failure to \"%s\"\n", buf);
+
+	list_del(&pmu->list);
+	perf_pmu__delete(pmu);
+	return ret;
+}
 
 /*
- * Prepare format directory data, exported by kernel
- * at /sys/bus/event_source/devices/<dev>/format.
+ * Prepare test PMU directory data, normally exported by kernel at
+ * /sys/bus/event_source/devices/<pmu>/. Give as input a buffer to hold the file
+ * path, the result is PMU loaded using that directory.
  */
-static char *test_format_dir_get(char *dir, size_t sz)
+static struct perf_pmu *test_pmu_get(char *dir, size_t sz)
 {
-	unsigned int i;
+	/* Simulated format definitions. */
+	const struct test_format {
+		const char *name;
+		const char *value;
+	} test_formats[] = {
+		{ "krava01", "config:0-1,62-63\n", },
+		{ "krava02", "config:10-17\n", },
+		{ "krava03", "config:5\n", },
+		{ "krava11", "config1:0,2,4,6,8,20-28\n", },
+		{ "krava12", "config1:63\n", },
+		{ "krava13", "config1:45-47\n", },
+		{ "krava21", "config2:0-3,10-13,20-23,30-33,40-43,50-53,60-63\n", },
+		{ "krava22", "config2:8,18,48,58\n", },
+		{ "krava23", "config2:28-29,38\n", },
+	};
+	const char *test_event = "krava01=15,krava02=170,krava03=1,krava11=27,krava12=1,"
+		"krava13=2,krava21=119,krava22=11,krava23=2\n";
 
-	snprintf(dir, sz, "/tmp/perf-pmu-test-format-XXXXXX");
-	if (!mkdtemp(dir))
+	char name[PATH_MAX];
+	int dirfd, file;
+	struct perf_pmu *pmu = NULL;
+	ssize_t len;
+
+	/* Create equivalent of sysfs mount point. */
+	scnprintf(dir, sz, "/tmp/perf-pmu-test-XXXXXX");
+	if (!mkdtemp(dir)) {
+		pr_err("mkdtemp failed\n");
+		dir[0] = '\0';
 		return NULL;
+	}
+	dirfd = open(dir, O_DIRECTORY);
+	if (dirfd < 0) {
+		pr_err("Failed to open test directory \"%s\"\n", dir);
+		goto err_out;
+	}
 
-	for (i = 0; i < ARRAY_SIZE(test_formats); i++) {
-		char name[PATH_MAX];
-		struct test_format *format = &test_formats[i];
-		FILE *file;
+	/* Create the test PMU directory and give it a perf_event_attr type number. */
+	if (mkdirat(dirfd, "perf-pmu-test", 0755) < 0) {
+		pr_err("Failed to mkdir PMU directory\n");
+		goto err_out;
+	}
+	file = openat(dirfd, "perf-pmu-test/type", O_WRONLY | O_CREAT, 0600);
+	if (!file) {
+		pr_err("Failed to open for writing file \"type\"\n");
+		goto err_out;
+	}
+	len = strlen("9999");
+	if (write(file, "9999\n", len) < len) {
+		close(file);
+		pr_err("Failed to write to 'type' file\n");
+		goto err_out;
+	}
+	close(file);
 
-		scnprintf(name, PATH_MAX, "%s/%s", dir, format->name);
+	/* Create format directory and files. */
+	if (mkdirat(dirfd, "perf-pmu-test/format", 0755) < 0) {
+		pr_err("Failed to mkdir PMU format directory\n)");
+		goto err_out;
+	}
+	for (size_t i = 0; i < ARRAY_SIZE(test_formats); i++) {
+		const struct test_format *format = &test_formats[i];
 
-		file = fopen(name, "w");
-		if (!file)
-			return NULL;
+		if (scnprintf(name, PATH_MAX, "perf-pmu-test/format/%s", format->name) < 0) {
+			pr_err("Failure to set up path for \"%s\"\n", format->name);
+			goto err_out;
+		}
+		file = openat(dirfd, name, O_WRONLY | O_CREAT, 0600);
+		if (!file) {
+			pr_err("Failed to open for writing file \"%s\"\n", name);
+			goto err_out;
+		}
 
-		if (1 != fwrite(format->value, strlen(format->value), 1, file))
-			break;
+		if (write(file, format->value, strlen(format->value)) < 0) {
+			pr_err("Failed to write to file \"%s\"\n", name);
+			close(file);
+			goto err_out;
+		}
+		close(file);
+	}
 
-		fclose(file);
+	/* Create test event. */
+	if (mkdirat(dirfd, "perf-pmu-test/events", 0755) < 0) {
+		pr_err("Failed to mkdir PMU events directory\n");
+		goto err_out;
+	}
+	file = openat(dirfd, "perf-pmu-test/events/test-event", O_WRONLY | O_CREAT, 0600);
+	if (!file) {
+		pr_err("Failed to open for writing file \"type\"\n");
+		goto err_out;
 	}
+	len = strlen(test_event);
+	if (write(file, test_event, len) < len) {
+		close(file);
+		pr_err("Failed to write to 'test-event' file\n");
+		goto err_out;
+	}
+	close(file);
+
+	/* Make the PMU reading the files created above. */
+	pmu = perf_pmus__add_test_pmu(dirfd, "perf-pmu-test");
+	if (!pmu)
+		pr_err("Test PMU creation failed\n");
 
-	return dir;
+err_out:
+	if (!pmu)
+		test_pmu_put(dir, pmu);
+	if (dirfd >= 0)
+		close(dirfd);
+	return pmu;
 }
 
-/* Cleanup format directory. */
-static int test_format_dir_put(char *dir)
+static int test__pmu_format(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
 {
-	char buf[PATH_MAX + 20];
+	char dir[PATH_MAX];
+	struct perf_event_attr attr;
+	struct parse_events_terms terms;
+	int ret = TEST_FAIL;
+	struct perf_pmu *pmu = test_pmu_get(dir, sizeof(dir));
+
+	if (!pmu)
+		return TEST_FAIL;
+
+	parse_events_terms__init(&terms);
+	if (parse_events_terms(&terms,
+				"krava01=15,krava02=170,krava03=1,krava11=27,krava12=1,"
+				"krava13=2,krava21=119,krava22=11,krava23=2",
+				NULL)) {
+		pr_err("Term parsing failed\n");
+		goto err_out;
+	}
 
-	snprintf(buf, sizeof(buf), "rm -f %s/*\n", dir);
-	if (system(buf))
-		return -1;
+	memset(&attr, 0, sizeof(attr));
+	ret = perf_pmu__config_terms(pmu, &attr, &terms, /*zero=*/false,
+				     /*apply_hardcoded=*/false, /*err=*/NULL);
+	if (ret) {
+		pr_err("perf_pmu__config_terms failed");
+		goto err_out;
+	}
+
+	if (attr.config  != 0xc00000000002a823) {
+		pr_err("Unexpected config value %llx\n", attr.config);
+		goto err_out;
+	}
+	if (attr.config1 != 0x8000400000000145) {
+		pr_err("Unexpected config1 value %llx\n", attr.config1);
+		goto err_out;
+	}
+	if (attr.config2 != 0x0400000020041d07) {
+		pr_err("Unexpected config2 value %llx\n", attr.config2);
+		goto err_out;
+	}
 
-	snprintf(buf, sizeof(buf), "rmdir %s\n", dir);
-	return system(buf);
+	ret = TEST_OK;
+err_out:
+	parse_events_terms__exit(&terms);
+	test_pmu_put(dir, pmu);
+	return ret;
 }
 
-static void add_test_terms(struct parse_events_terms *terms)
+static int test__pmu_events(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
 {
-	unsigned int i;
+	char dir[PATH_MAX];
+	struct parse_events_error err;
+	struct evlist *evlist;
+	struct evsel *evsel;
+	struct perf_event_attr *attr;
+	int ret = TEST_FAIL;
+	struct perf_pmu *pmu = test_pmu_get(dir, sizeof(dir));
+	const char *event = "perf-pmu-test/test-event/";
 
-	for (i = 0; i < ARRAY_SIZE(test_terms); i++) {
-		struct parse_events_term *clone;
 
-		parse_events_term__clone(&clone, &test_terms[i]);
-		list_add_tail(&clone->list, &terms->terms);
+	if (!pmu)
+		return TEST_FAIL;
+
+	evlist = evlist__new();
+	if (evlist == NULL) {
+		pr_err("Failed allocation");
+		goto err_out;
+	}
+	parse_events_error__init(&err);
+	ret = parse_events(evlist, event, &err);
+	if (ret) {
+		pr_debug("failed to parse event '%s', err %d\n", event, ret);
+		parse_events_error__print(&err, event);
+		if (parse_events_error__contains(&err, "can't access trace events"))
+			ret = TEST_SKIP;
+		goto err_out;
+	}
+	evsel = evlist__first(evlist);
+	attr = &evsel->core.attr;
+	if (attr->config  != 0xc00000000002a823) {
+		pr_err("Unexpected config value %llx\n", attr->config);
+		goto err_out;
 	}
+	if (attr->config1 != 0x8000400000000145) {
+		pr_err("Unexpected config1 value %llx\n", attr->config1);
+		goto err_out;
+	}
+	if (attr->config2 != 0x0400000020041d07) {
+		pr_err("Unexpected config2 value %llx\n", attr->config2);
+		goto err_out;
+	}
+
+	ret = TEST_OK;
+err_out:
+	parse_events_error__exit(&err);
+	evlist__delete(evlist);
+	test_pmu_put(dir, pmu);
+	return ret;
 }
 
-static int test__pmu(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
+static bool permitted_event_name(const char *name)
 {
-	char dir[PATH_MAX];
-	char *format;
-	struct parse_events_terms terms;
-	struct perf_event_attr attr;
-	struct perf_pmu *pmu;
-	int fd;
-	int ret;
+	bool has_lower = false, has_upper = false;
+	__u64 config;
 
-	parse_events_terms__init(&terms);
-	add_test_terms(&terms);
-	pmu = zalloc(sizeof(*pmu));
-	if (!pmu) {
-		parse_events_terms__exit(&terms);
-		return -ENOMEM;
-	}
-
-	INIT_LIST_HEAD(&pmu->format);
-	INIT_LIST_HEAD(&pmu->aliases);
-	INIT_LIST_HEAD(&pmu->caps);
-	format = test_format_dir_get(dir, sizeof(dir));
-	if (!format) {
-		free(pmu);
-		parse_events_terms__exit(&terms);
-		return -EINVAL;
+	for (size_t i = 0; i < strlen(name); i++) {
+		char c = name[i];
+
+		if (islower(c)) {
+			if (has_upper)
+				goto check_legacy;
+			has_lower = true;
+			continue;
+		}
+		if (isupper(c)) {
+			if (has_lower)
+				goto check_legacy;
+			has_upper = true;
+			continue;
+		}
+		if (!isdigit(c) && c != '.' && c != '_' && c != '-')
+			goto check_legacy;
+	}
+	return true;
+check_legacy:
+	/*
+	 * If the event name matches a legacy cache name the legacy encoding
+	 * will still be used. This isn't quite WAI as sysfs events should take
+	 * priority, but this case happens on PowerPC and matches the behavior
+	 * in older perf tools where legacy events were the priority. Be
+	 * permissive and assume later PMU drivers will use all lower or upper
+	 * case names.
+	 */
+	if (parse_events__decode_legacy_cache(name, /*extended_pmu_type=*/0, &config) == 0) {
+		pr_warning("sysfs event '%s' should be all lower/upper case, it will be matched using legacy encoding.",
+			   name);
+		return true;
 	}
+	return false;
+}
 
-	memset(&attr, 0, sizeof(attr));
+static int test__pmu_event_names(struct test_suite *test __maybe_unused,
+				 int subtest __maybe_unused)
+{
+	char path[PATH_MAX];
+	DIR *pmu_dir, *event_dir;
+	struct dirent *pmu_dent, *event_dent;
+	const char *sysfs = sysfs__mountpoint();
+	int ret = TEST_OK;
 
-	fd = open(format, O_DIRECTORY);
-	if (fd < 0) {
-		ret = fd;
-		goto out;
+	if (!sysfs) {
+		pr_err("Sysfs not mounted\n");
+		return TEST_FAIL;
 	}
 
-	pmu->name = strdup("perf-pmu-test");
-	ret = perf_pmu__format_parse(pmu, fd, /*eager_load=*/true);
-	if (ret)
-		goto out;
+	snprintf(path, sizeof(path), "%s/bus/event_source/devices/", sysfs);
+	pmu_dir = opendir(path);
+	if (!pmu_dir) {
+		pr_err("Error opening \"%s\"\n", path);
+		return TEST_FAIL;
+	}
+	while ((pmu_dent = readdir(pmu_dir))) {
+		if (!strcmp(pmu_dent->d_name, ".") ||
+		    !strcmp(pmu_dent->d_name, ".."))
+			continue;
 
-	ret = perf_pmu__config_terms(pmu, &attr, &terms, /*zero=*/false, /*err=*/NULL);
-	if (ret)
-		goto out;
-
-	ret = -EINVAL;
-	if (attr.config  != 0xc00000000002a823)
-		goto out;
-	if (attr.config1 != 0x8000400000000145)
-		goto out;
-	if (attr.config2 != 0x0400000020041d07)
-		goto out;
-
-	ret = 0;
-out:
-	test_format_dir_put(format);
-	perf_pmu__delete(pmu);
-	parse_events_terms__exit(&terms);
+		snprintf(path, sizeof(path), "%s/bus/event_source/devices/%s/type",
+			 sysfs, pmu_dent->d_name);
+
+		/* Does it look like a PMU? */
+		if (!file_available(path))
+			continue;
+
+		/* Process events. */
+		snprintf(path, sizeof(path), "%s/bus/event_source/devices/%s/events",
+			 sysfs, pmu_dent->d_name);
+
+		event_dir = opendir(path);
+		if (!event_dir) {
+			pr_debug("Skipping as no event directory \"%s\"\n", path);
+			continue;
+		}
+		while ((event_dent = readdir(event_dir))) {
+			const char *event_name = event_dent->d_name;
+
+			if (!strcmp(event_name, ".") || !strcmp(event_name, ".."))
+				continue;
+
+			if (!permitted_event_name(event_name)) {
+				pr_err("Invalid sysfs event name: %s/%s\n",
+					pmu_dent->d_name, event_name);
+				ret = TEST_FAIL;
+			}
+		}
+		closedir(event_dir);
+	}
+	closedir(pmu_dir);
 	return ret;
 }
 
-DEFINE_SUITE("Parse perf pmu format", pmu);
+static const char * const uncore_chas[] = {
+	"uncore_cha_0",
+	"uncore_cha_1",
+	"uncore_cha_2",
+	"uncore_cha_3",
+	"uncore_cha_4",
+	"uncore_cha_5",
+	"uncore_cha_6",
+	"uncore_cha_7",
+	"uncore_cha_8",
+	"uncore_cha_9",
+	"uncore_cha_10",
+	"uncore_cha_11",
+	"uncore_cha_12",
+	"uncore_cha_13",
+	"uncore_cha_14",
+	"uncore_cha_15",
+	"uncore_cha_16",
+	"uncore_cha_17",
+	"uncore_cha_18",
+	"uncore_cha_19",
+	"uncore_cha_20",
+	"uncore_cha_21",
+	"uncore_cha_22",
+	"uncore_cha_23",
+	"uncore_cha_24",
+	"uncore_cha_25",
+	"uncore_cha_26",
+	"uncore_cha_27",
+	"uncore_cha_28",
+	"uncore_cha_29",
+	"uncore_cha_30",
+	"uncore_cha_31",
+};
+
+static const char * const mrvl_ddrs[] = {
+	"mrvl_ddr_pmu_87e1b0000000",
+	"mrvl_ddr_pmu_87e1b1000000",
+	"mrvl_ddr_pmu_87e1b2000000",
+	"mrvl_ddr_pmu_87e1b3000000",
+	"mrvl_ddr_pmu_87e1b4000000",
+	"mrvl_ddr_pmu_87e1b5000000",
+	"mrvl_ddr_pmu_87e1b6000000",
+	"mrvl_ddr_pmu_87e1b7000000",
+	"mrvl_ddr_pmu_87e1b8000000",
+	"mrvl_ddr_pmu_87e1b9000000",
+	"mrvl_ddr_pmu_87e1ba000000",
+	"mrvl_ddr_pmu_87e1bb000000",
+	"mrvl_ddr_pmu_87e1bc000000",
+	"mrvl_ddr_pmu_87e1bd000000",
+	"mrvl_ddr_pmu_87e1be000000",
+	"mrvl_ddr_pmu_87e1bf000000",
+};
+
+static int test__name_len(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
+{
+	TEST_ASSERT_VAL("cpu", pmu_name_len_no_suffix("cpu") == strlen("cpu"));
+	TEST_ASSERT_VAL("i915", pmu_name_len_no_suffix("i915") == strlen("i915"));
+	TEST_ASSERT_VAL("cpum_cf", pmu_name_len_no_suffix("cpum_cf") == strlen("cpum_cf"));
+	for (size_t i = 0; i < ARRAY_SIZE(uncore_chas); i++) {
+		TEST_ASSERT_VAL("Strips uncore_cha suffix",
+				pmu_name_len_no_suffix(uncore_chas[i]) ==
+				strlen("uncore_cha"));
+	}
+	for (size_t i = 0; i < ARRAY_SIZE(mrvl_ddrs); i++) {
+		TEST_ASSERT_VAL("Strips mrvl_ddr_pmu suffix",
+				pmu_name_len_no_suffix(mrvl_ddrs[i]) ==
+				strlen("mrvl_ddr_pmu"));
+	}
+	return TEST_OK;
+}
+
+static int test__name_cmp(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
+{
+	TEST_ASSERT_EQUAL("cpu", pmu_name_cmp("cpu", "cpu"), 0);
+	TEST_ASSERT_EQUAL("i915", pmu_name_cmp("i915", "i915"), 0);
+	TEST_ASSERT_EQUAL("cpum_cf", pmu_name_cmp("cpum_cf", "cpum_cf"), 0);
+	TEST_ASSERT_VAL("i915", pmu_name_cmp("cpu", "i915") < 0);
+	TEST_ASSERT_VAL("i915", pmu_name_cmp("i915", "cpu") > 0);
+	TEST_ASSERT_VAL("cpum_cf", pmu_name_cmp("cpum_cf", "cpum_ce") > 0);
+	TEST_ASSERT_VAL("cpum_cf", pmu_name_cmp("cpum_cf", "cpum_d0") < 0);
+	for (size_t i = 1; i < ARRAY_SIZE(uncore_chas); i++) {
+		TEST_ASSERT_VAL("uncore_cha suffixes ordered lt",
+				pmu_name_cmp(uncore_chas[i-1], uncore_chas[i]) < 0);
+		TEST_ASSERT_VAL("uncore_cha suffixes ordered gt",
+				pmu_name_cmp(uncore_chas[i], uncore_chas[i-1]) > 0);
+	}
+	for (size_t i = 1; i < ARRAY_SIZE(mrvl_ddrs); i++) {
+		TEST_ASSERT_VAL("mrvl_ddr_pmu suffixes ordered lt",
+				pmu_name_cmp(mrvl_ddrs[i-1], mrvl_ddrs[i]) < 0);
+		TEST_ASSERT_VAL("mrvl_ddr_pmu suffixes ordered gt",
+				pmu_name_cmp(mrvl_ddrs[i], mrvl_ddrs[i-1]) > 0);
+	}
+	return TEST_OK;
+}
+
+/**
+ * Test perf_pmu__wildcard_match() that's used to search for a PMU given a name passed
+ * on the command line. The name that's passed may also be a filename type glob
+ * match. If the name does not match, perf_pmu__wildcard_match() attempts to match the
+ * alias of the PMU, if provided.
+ */
+static int test__pmu_match(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
+{
+	struct perf_pmu test_pmu = {
+		.name = "pmuname",
+	};
+
+#define TEST_PMU_MATCH(msg, to_match, expect)				\
+	TEST_ASSERT_EQUAL(msg, perf_pmu__wildcard_match(&test_pmu, to_match), expect)
+
+	TEST_PMU_MATCH("Exact match", "pmuname", true);
+	TEST_PMU_MATCH("Longer token", "longertoken", false);
+	TEST_PMU_MATCH("Shorter token", "pmu", false);
+
+	test_pmu.name = "pmuname_10";
+	TEST_PMU_MATCH("Diff suffix_", "pmuname_2", false);
+	TEST_PMU_MATCH("Sub suffix_", "pmuname_1", true);
+	TEST_PMU_MATCH("Same suffix_", "pmuname_10", true);
+	TEST_PMU_MATCH("No suffix_", "pmuname", true);
+	TEST_PMU_MATCH("Underscore_", "pmuname_", true);
+	TEST_PMU_MATCH("Substring_", "pmuna", false);
+
+	test_pmu.name = "pmuname_ab23";
+	TEST_PMU_MATCH("Diff suffix hex_", "pmuname_2", false);
+	TEST_PMU_MATCH("Sub suffix hex_", "pmuname_ab", true);
+	TEST_PMU_MATCH("Same suffix hex_", "pmuname_ab23", true);
+	TEST_PMU_MATCH("No suffix hex_", "pmuname", true);
+	TEST_PMU_MATCH("Underscore hex_", "pmuname_", true);
+	TEST_PMU_MATCH("Substring hex_", "pmuna", false);
+
+	test_pmu.name = "pmuname10";
+	TEST_PMU_MATCH("Diff suffix", "pmuname2", false);
+	TEST_PMU_MATCH("Sub suffix", "pmuname1", true);
+	TEST_PMU_MATCH("Same suffix", "pmuname10", true);
+	TEST_PMU_MATCH("No suffix", "pmuname", true);
+	TEST_PMU_MATCH("Underscore", "pmuname_", false);
+	TEST_PMU_MATCH("Substring", "pmuna", false);
+
+	test_pmu.name = "pmunameab23";
+	TEST_PMU_MATCH("Diff suffix hex", "pmuname2", false);
+	TEST_PMU_MATCH("Sub suffix hex", "pmunameab", true);
+	TEST_PMU_MATCH("Same suffix hex", "pmunameab23", true);
+	TEST_PMU_MATCH("No suffix hex", "pmuname", true);
+	TEST_PMU_MATCH("Underscore hex", "pmuname_", false);
+	TEST_PMU_MATCH("Substring hex",   "pmuna", false);
+
+	/*
+	 * 2 hex chars or less are not considered suffixes so it shouldn't be
+	 * possible to wildcard by skipping the suffix. Therefore there are more
+	 * false results here than above.
+	 */
+	test_pmu.name = "pmuname_a3";
+	TEST_PMU_MATCH("Diff suffix 2 hex_", "pmuname_2", false);
+	/*
+	 * This one should be false, but because pmuname_a3 ends in 3 which is
+	 * decimal, it's not possible to determine if it's a short hex suffix or
+	 * a normal decimal suffix following text. And we want to match on any
+	 * length of decimal suffix. Run the test anyway and expect the wrong
+	 * result. And slightly fuzzy matching shouldn't do too much harm.
+	 */
+	TEST_PMU_MATCH("Sub suffix 2 hex_", "pmuname_a", true);
+	TEST_PMU_MATCH("Same suffix 2 hex_", "pmuname_a3", true);
+	TEST_PMU_MATCH("No suffix 2 hex_", "pmuname", false);
+	TEST_PMU_MATCH("Underscore 2 hex_", "pmuname_", false);
+	TEST_PMU_MATCH("Substring 2 hex_", "pmuna", false);
+
+	test_pmu.name = "pmuname_5";
+	TEST_PMU_MATCH("Glob 1", "pmu*", true);
+	TEST_PMU_MATCH("Glob 2", "nomatch*", false);
+	TEST_PMU_MATCH("Seq 1", "pmuname_[12345]", true);
+	TEST_PMU_MATCH("Seq 2", "pmuname_[67890]", false);
+	TEST_PMU_MATCH("? 1", "pmuname_?", true);
+	TEST_PMU_MATCH("? 2", "pmuname_1?", false);
+
+	return TEST_OK;
+}
+
+static struct test_case tests__pmu[] = {
+	TEST_CASE("Parsing with PMU format directory", pmu_format),
+	TEST_CASE("Parsing with PMU event", pmu_events),
+	TEST_CASE("PMU event names", pmu_event_names),
+	TEST_CASE("PMU name combining", name_len),
+	TEST_CASE("PMU name comparison", name_cmp),
+	TEST_CASE("PMU cmdline match", pmu_match),
+	{	.name = NULL, }
+};
+
+struct test_suite suite__pmu = {
+	.desc = "Sysfs PMU tests",
+	.test_cases = tests__pmu,
+};