1 // SPDX-License-Identifier: GPL-2.0
2 #include "evlist.h"
3 #include "evsel.h"
4 #include "parse-events.h"
5 #include "pmu.h"
6 #include "pmus.h"
7 #include "tests.h"
8 #include "debug.h"
9 #include "fncache.h"
10 #include <api/fs/fs.h>
11 #include <ctype.h>
12 #include <dirent.h>
13 #include <errno.h>
14 #include <fcntl.h>
15 #include <stdio.h>
16 #include <stdlib.h>
17 #include <unistd.h>
18 #include <sys/stat.h>
19 #include <sys/types.h>
20
21 /* Cleanup test PMU directory. */
test_pmu_put(const char * dir,struct perf_pmu * pmu)22 static int test_pmu_put(const char *dir, struct perf_pmu *pmu)
23 {
24 char buf[PATH_MAX + 20];
25 int ret;
26
27 if (scnprintf(buf, sizeof(buf), "rm -fr %s", dir) < 0) {
28 pr_err("Failure to set up buffer for \"%s\"\n", dir);
29 return -EINVAL;
30 }
31 ret = system(buf);
32 if (ret)
33 pr_err("Failure to \"%s\"\n", buf);
34
35 list_del(&pmu->list);
36 perf_pmu__delete(pmu);
37 return ret;
38 }
39
40 /*
41 * Prepare test PMU directory data, normally exported by kernel at
42 * /sys/bus/event_source/devices/<pmu>/. Give as input a buffer to hold the file
43 * path, the result is PMU loaded using that directory.
44 */
test_pmu_get(char * dir,size_t sz)45 static struct perf_pmu *test_pmu_get(char *dir, size_t sz)
46 {
47 /* Simulated format definitions. */
48 const struct test_format {
49 const char *name;
50 const char *value;
51 } test_formats[] = {
52 { "krava01", "config:0-1,62-63\n", },
53 { "krava02", "config:10-17\n", },
54 { "krava03", "config:5\n", },
55 { "krava11", "config1:0,2,4,6,8,20-28\n", },
56 { "krava12", "config1:63\n", },
57 { "krava13", "config1:45-47\n", },
58 { "krava21", "config2:0-3,10-13,20-23,30-33,40-43,50-53,60-63\n", },
59 { "krava22", "config2:8,18,48,58\n", },
60 { "krava23", "config2:28-29,38\n", },
61 };
62 const char *test_event = "krava01=15,krava02=170,krava03=1,krava11=27,krava12=1,"
63 "krava13=2,krava21=119,krava22=11,krava23=2\n";
64
65 char name[PATH_MAX];
66 int dirfd, file;
67 struct perf_pmu *pmu = NULL;
68 ssize_t len;
69
70 /* Create equivalent of sysfs mount point. */
71 scnprintf(dir, sz, "/tmp/perf-pmu-test-XXXXXX");
72 if (!mkdtemp(dir)) {
73 pr_err("mkdtemp failed\n");
74 dir[0] = '\0';
75 return NULL;
76 }
77 dirfd = open(dir, O_DIRECTORY);
78 if (dirfd < 0) {
79 pr_err("Failed to open test directory \"%s\"\n", dir);
80 goto err_out;
81 }
82
83 /* Create the test PMU directory and give it a perf_event_attr type number. */
84 if (mkdirat(dirfd, "perf-pmu-test", 0755) < 0) {
85 pr_err("Failed to mkdir PMU directory\n");
86 goto err_out;
87 }
88 file = openat(dirfd, "perf-pmu-test/type", O_WRONLY | O_CREAT, 0600);
89 if (!file) {
90 pr_err("Failed to open for writing file \"type\"\n");
91 goto err_out;
92 }
93 len = strlen("9999");
94 if (write(file, "9999\n", len) < len) {
95 close(file);
96 pr_err("Failed to write to 'type' file\n");
97 goto err_out;
98 }
99 close(file);
100
101 /* Create format directory and files. */
102 if (mkdirat(dirfd, "perf-pmu-test/format", 0755) < 0) {
103 pr_err("Failed to mkdir PMU format directory\n)");
104 goto err_out;
105 }
106 for (size_t i = 0; i < ARRAY_SIZE(test_formats); i++) {
107 const struct test_format *format = &test_formats[i];
108
109 if (scnprintf(name, PATH_MAX, "perf-pmu-test/format/%s", format->name) < 0) {
110 pr_err("Failure to set up path for \"%s\"\n", format->name);
111 goto err_out;
112 }
113 file = openat(dirfd, name, O_WRONLY | O_CREAT, 0600);
114 if (!file) {
115 pr_err("Failed to open for writing file \"%s\"\n", name);
116 goto err_out;
117 }
118
119 if (write(file, format->value, strlen(format->value)) < 0) {
120 pr_err("Failed to write to file \"%s\"\n", name);
121 close(file);
122 goto err_out;
123 }
124 close(file);
125 }
126
127 /* Create test event. */
128 if (mkdirat(dirfd, "perf-pmu-test/events", 0755) < 0) {
129 pr_err("Failed to mkdir PMU events directory\n");
130 goto err_out;
131 }
132 file = openat(dirfd, "perf-pmu-test/events/test-event", O_WRONLY | O_CREAT, 0600);
133 if (!file) {
134 pr_err("Failed to open for writing file \"type\"\n");
135 goto err_out;
136 }
137 len = strlen(test_event);
138 if (write(file, test_event, len) < len) {
139 close(file);
140 pr_err("Failed to write to 'test-event' file\n");
141 goto err_out;
142 }
143 close(file);
144
145 /* Make the PMU reading the files created above. */
146 pmu = perf_pmus__add_test_pmu(dirfd, "perf-pmu-test");
147 if (!pmu)
148 pr_err("Test PMU creation failed\n");
149
150 err_out:
151 if (!pmu)
152 test_pmu_put(dir, pmu);
153 if (dirfd >= 0)
154 close(dirfd);
155 return pmu;
156 }
157
test__pmu_format(struct test_suite * test __maybe_unused,int subtest __maybe_unused)158 static int test__pmu_format(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
159 {
160 char dir[PATH_MAX];
161 struct perf_event_attr attr;
162 struct parse_events_terms terms;
163 int ret = TEST_FAIL;
164 struct perf_pmu *pmu = test_pmu_get(dir, sizeof(dir));
165
166 if (!pmu)
167 return TEST_FAIL;
168
169 parse_events_terms__init(&terms);
170 if (parse_events_terms(&terms,
171 "krava01=15,krava02=170,krava03=1,krava11=27,krava12=1,"
172 "krava13=2,krava21=119,krava22=11,krava23=2")) {
173 pr_err("Term parsing failed\n");
174 goto err_out;
175 }
176
177 memset(&attr, 0, sizeof(attr));
178 ret = perf_pmu__config_terms(pmu, &attr, &terms, /*zero=*/false,
179 /*apply_hardcoded=*/false, /*err=*/NULL);
180 if (ret) {
181 pr_err("perf_pmu__config_terms failed");
182 goto err_out;
183 }
184
185 if (attr.config != 0xc00000000002a823) {
186 pr_err("Unexpected config value %llx\n", attr.config);
187 goto err_out;
188 }
189 if (attr.config1 != 0x8000400000000145) {
190 pr_err("Unexpected config1 value %llx\n", attr.config1);
191 goto err_out;
192 }
193 if (attr.config2 != 0x0400000020041d07) {
194 pr_err("Unexpected config2 value %llx\n", attr.config2);
195 }
196
197 ret = TEST_OK;
198 err_out:
199 parse_events_terms__exit(&terms);
200 test_pmu_put(dir, pmu);
201 return ret;
202 }
203
test__pmu_usr_chgs(struct test_suite * test __maybe_unused,int subtest __maybe_unused)204 static int test__pmu_usr_chgs(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
205 {
206 const char *event = "perf-pmu-test/config=15,config1=4,krava02=170,"
207 "krava03=1,krava11=27,krava12=1/";
208 struct parse_events_terms terms;
209 struct parse_events_error err;
210 LIST_HEAD(config_terms);
211 struct evlist *evlist;
212 struct perf_pmu *pmu;
213 struct evsel *evsel;
214 int ret = TEST_FAIL;
215 char dir[PATH_MAX];
216 u64 val;
217
218 pmu = test_pmu_get(dir, sizeof(dir));
219 if (!pmu)
220 return TEST_FAIL;
221
222 evlist = evlist__new();
223 if (evlist == NULL) {
224 pr_err("Failed allocation");
225 goto err_out;
226 }
227
228 parse_events_terms__init(&terms);
229 ret = parse_events(evlist, event, &err);
230 if (ret) {
231 pr_debug("failed to parse event '%s', err %d\n", event, ret);
232 parse_events_error__print(&err, event);
233 if (parse_events_error__contains(&err, "can't access trace events"))
234 ret = TEST_SKIP;
235 goto err_out;
236 }
237 evsel = evlist__first(evlist);
238
239 /*
240 * Set via config=15, krava01 bits 0-1
241 * Set via config1=4, krava11 bit 1
242 * Set values: krava02=170, krava03=1, krava11=27, krava12=1
243 *
244 * Test that already set values aren't overwritten.
245 */
246 evsel__set_config_if_unset(evsel, "krava01", 16);
247 evsel__get_config_val(evsel, "krava01", &val);
248 TEST_ASSERT_EQUAL("krava01 overwritten", (int) val, (15 & 0b11));
249
250 evsel__set_config_if_unset(evsel, "krava11", 45);
251 evsel__get_config_val(evsel, "krava11", &val);
252 TEST_ASSERT_EQUAL("krava11 overwritten", (int) val, (27 | (4 << 1)));
253
254 evsel__set_config_if_unset(evsel, "krava02", 32);
255 evsel__get_config_val(evsel, "krava02", &val);
256 TEST_ASSERT_EQUAL("krava02 overwritten", (int) val, 170);
257
258 evsel__set_config_if_unset(evsel, "krava03", 0);
259 evsel__get_config_val(evsel, "krava03", &val);
260 TEST_ASSERT_EQUAL("krava03 overwritten", (int) val, 1);
261
262 /*
263 * krava13 doesn't have any bits set by either krava13= or config1=
264 * but setting _any_ raw value for config1 implies that krava13
265 * shouldn't be overwritten. So it's value should remain as 0.
266 */
267 evsel__set_config_if_unset(evsel, "krava13", 5);
268 evsel__get_config_val(evsel, "krava13", &val);
269 TEST_ASSERT_EQUAL("krava13 overwritten", (int) val, 0);
270
271 /*
272 * Unset values: krava21, krava22, krava23
273 *
274 * Test that unset values are overwritten.
275 */
276 evsel__set_config_if_unset(evsel, "krava21", 13905);
277 evsel__get_config_val(evsel, "krava21", &val);
278 TEST_ASSERT_EQUAL("krava21 not overwritten", (int) val, 13905);
279
280 evsel__set_config_if_unset(evsel, "krava22", 11);
281 evsel__get_config_val(evsel, "krava22", &val);
282 TEST_ASSERT_EQUAL("krava22 not overwritten", (int) val, 11);
283
284 evsel__set_config_if_unset(evsel, "krava23", 0);
285 evsel__get_config_val(evsel, "krava23", &val);
286 TEST_ASSERT_EQUAL("krava23 not overwritten", (int) val, 0);
287 ret = TEST_OK;
288 err_out:
289 parse_events_terms__exit(&terms);
290 evlist__delete(evlist);
291 test_pmu_put(dir, pmu);
292 return ret;
293 }
294
test__pmu_events(struct test_suite * test __maybe_unused,int subtest __maybe_unused)295 static int test__pmu_events(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
296 {
297 char dir[PATH_MAX];
298 struct parse_events_error err;
299 struct evlist *evlist;
300 struct evsel *evsel;
301 struct perf_event_attr *attr;
302 int ret = TEST_FAIL;
303 struct perf_pmu *pmu = test_pmu_get(dir, sizeof(dir));
304 const char *event = "perf-pmu-test/test-event/";
305
306
307 if (!pmu)
308 return TEST_FAIL;
309
310 evlist = evlist__new();
311 if (evlist == NULL) {
312 pr_err("Failed allocation");
313 goto err_out;
314 }
315 parse_events_error__init(&err);
316 ret = parse_events(evlist, event, &err);
317 if (ret) {
318 pr_debug("failed to parse event '%s', err %d\n", event, ret);
319 parse_events_error__print(&err, event);
320 if (parse_events_error__contains(&err, "can't access trace events"))
321 ret = TEST_SKIP;
322 goto err_out;
323 }
324 evsel = evlist__first(evlist);
325 attr = &evsel->core.attr;
326 if (attr->config != 0xc00000000002a823) {
327 pr_err("Unexpected config value %llx\n", attr->config);
328 goto err_out;
329 }
330 if (attr->config1 != 0x8000400000000145) {
331 pr_err("Unexpected config1 value %llx\n", attr->config1);
332 goto err_out;
333 }
334 if (attr->config2 != 0x0400000020041d07) {
335 pr_err("Unexpected config2 value %llx\n", attr->config2);
336 goto err_out;
337 }
338
339 ret = TEST_OK;
340 err_out:
341 parse_events_error__exit(&err);
342 evlist__delete(evlist);
343 test_pmu_put(dir, pmu);
344 return ret;
345 }
346
permitted_event_name(const char * name)347 static bool permitted_event_name(const char *name)
348 {
349 bool has_lower = false, has_upper = false;
350 __u64 config;
351
352 for (size_t i = 0; i < strlen(name); i++) {
353 char c = name[i];
354
355 if (islower(c)) {
356 if (has_upper)
357 goto check_legacy;
358 has_lower = true;
359 continue;
360 }
361 if (isupper(c)) {
362 if (has_lower)
363 goto check_legacy;
364 has_upper = true;
365 continue;
366 }
367 if (!isdigit(c) && c != '.' && c != '_' && c != '-')
368 goto check_legacy;
369 }
370 return true;
371 check_legacy:
372 /*
373 * If the event name matches a legacy cache name the legacy encoding
374 * will still be used. This isn't quite WAI as sysfs events should take
375 * priority, but this case happens on PowerPC and matches the behavior
376 * in older perf tools where legacy events were the priority. Be
377 * permissive and assume later PMU drivers will use all lower or upper
378 * case names.
379 */
380 if (parse_events__decode_legacy_cache(name, /*extended_pmu_type=*/0, &config) == 0) {
381 pr_warning("sysfs event '%s' should be all lower/upper case, it will be matched using legacy encoding.",
382 name);
383 return true;
384 }
385 return false;
386 }
387
test__pmu_event_names(struct test_suite * test __maybe_unused,int subtest __maybe_unused)388 static int test__pmu_event_names(struct test_suite *test __maybe_unused,
389 int subtest __maybe_unused)
390 {
391 char path[PATH_MAX];
392 DIR *pmu_dir, *event_dir;
393 struct dirent *pmu_dent, *event_dent;
394 const char *sysfs = sysfs__mountpoint();
395 int ret = TEST_OK;
396
397 if (!sysfs) {
398 pr_err("Sysfs not mounted\n");
399 return TEST_FAIL;
400 }
401
402 snprintf(path, sizeof(path), "%s/bus/event_source/devices/", sysfs);
403 pmu_dir = opendir(path);
404 if (!pmu_dir) {
405 pr_err("Error opening \"%s\"\n", path);
406 return TEST_FAIL;
407 }
408 while ((pmu_dent = readdir(pmu_dir))) {
409 if (!strcmp(pmu_dent->d_name, ".") ||
410 !strcmp(pmu_dent->d_name, ".."))
411 continue;
412
413 snprintf(path, sizeof(path), "%s/bus/event_source/devices/%s/type",
414 sysfs, pmu_dent->d_name);
415
416 /* Does it look like a PMU? */
417 if (!file_available(path))
418 continue;
419
420 /* Process events. */
421 snprintf(path, sizeof(path), "%s/bus/event_source/devices/%s/events",
422 sysfs, pmu_dent->d_name);
423
424 event_dir = opendir(path);
425 if (!event_dir) {
426 pr_debug("Skipping as no event directory \"%s\"\n", path);
427 continue;
428 }
429 while ((event_dent = readdir(event_dir))) {
430 const char *event_name = event_dent->d_name;
431
432 if (!strcmp(event_name, ".") || !strcmp(event_name, ".."))
433 continue;
434
435 if (!permitted_event_name(event_name)) {
436 pr_err("Invalid sysfs event name: %s/%s\n",
437 pmu_dent->d_name, event_name);
438 ret = TEST_FAIL;
439 }
440 }
441 closedir(event_dir);
442 }
443 closedir(pmu_dir);
444 return ret;
445 }
446
447 static const char * const uncore_chas[] = {
448 "uncore_cha_0",
449 "uncore_cha_1",
450 "uncore_cha_2",
451 "uncore_cha_3",
452 "uncore_cha_4",
453 "uncore_cha_5",
454 "uncore_cha_6",
455 "uncore_cha_7",
456 "uncore_cha_8",
457 "uncore_cha_9",
458 "uncore_cha_10",
459 "uncore_cha_11",
460 "uncore_cha_12",
461 "uncore_cha_13",
462 "uncore_cha_14",
463 "uncore_cha_15",
464 "uncore_cha_16",
465 "uncore_cha_17",
466 "uncore_cha_18",
467 "uncore_cha_19",
468 "uncore_cha_20",
469 "uncore_cha_21",
470 "uncore_cha_22",
471 "uncore_cha_23",
472 "uncore_cha_24",
473 "uncore_cha_25",
474 "uncore_cha_26",
475 "uncore_cha_27",
476 "uncore_cha_28",
477 "uncore_cha_29",
478 "uncore_cha_30",
479 "uncore_cha_31",
480 };
481
482 static const char * const mrvl_ddrs[] = {
483 "mrvl_ddr_pmu_87e1b0000000",
484 "mrvl_ddr_pmu_87e1b1000000",
485 "mrvl_ddr_pmu_87e1b2000000",
486 "mrvl_ddr_pmu_87e1b3000000",
487 "mrvl_ddr_pmu_87e1b4000000",
488 "mrvl_ddr_pmu_87e1b5000000",
489 "mrvl_ddr_pmu_87e1b6000000",
490 "mrvl_ddr_pmu_87e1b7000000",
491 "mrvl_ddr_pmu_87e1b8000000",
492 "mrvl_ddr_pmu_87e1b9000000",
493 "mrvl_ddr_pmu_87e1ba000000",
494 "mrvl_ddr_pmu_87e1bb000000",
495 "mrvl_ddr_pmu_87e1bc000000",
496 "mrvl_ddr_pmu_87e1bd000000",
497 "mrvl_ddr_pmu_87e1be000000",
498 "mrvl_ddr_pmu_87e1bf000000",
499 };
500
test__name_len(struct test_suite * test __maybe_unused,int subtest __maybe_unused)501 static int test__name_len(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
502 {
503 TEST_ASSERT_VAL("cpu", pmu_name_len_no_suffix("cpu") == strlen("cpu"));
504 TEST_ASSERT_VAL("i915", pmu_name_len_no_suffix("i915") == strlen("i915"));
505 TEST_ASSERT_VAL("cpum_cf", pmu_name_len_no_suffix("cpum_cf") == strlen("cpum_cf"));
506 for (size_t i = 0; i < ARRAY_SIZE(uncore_chas); i++) {
507 TEST_ASSERT_VAL("Strips uncore_cha suffix",
508 pmu_name_len_no_suffix(uncore_chas[i]) ==
509 strlen("uncore_cha"));
510 }
511 for (size_t i = 0; i < ARRAY_SIZE(mrvl_ddrs); i++) {
512 TEST_ASSERT_VAL("Strips mrvl_ddr_pmu suffix",
513 pmu_name_len_no_suffix(mrvl_ddrs[i]) ==
514 strlen("mrvl_ddr_pmu"));
515 }
516 return TEST_OK;
517 }
518
test__name_cmp(struct test_suite * test __maybe_unused,int subtest __maybe_unused)519 static int test__name_cmp(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
520 {
521 TEST_ASSERT_EQUAL("cpu", pmu_name_cmp("cpu", "cpu"), 0);
522 TEST_ASSERT_EQUAL("i915", pmu_name_cmp("i915", "i915"), 0);
523 TEST_ASSERT_EQUAL("cpum_cf", pmu_name_cmp("cpum_cf", "cpum_cf"), 0);
524 TEST_ASSERT_VAL("i915", pmu_name_cmp("cpu", "i915") < 0);
525 TEST_ASSERT_VAL("i915", pmu_name_cmp("i915", "cpu") > 0);
526 TEST_ASSERT_VAL("cpum_cf", pmu_name_cmp("cpum_cf", "cpum_ce") > 0);
527 TEST_ASSERT_VAL("cpum_cf", pmu_name_cmp("cpum_cf", "cpum_d0") < 0);
528 for (size_t i = 1; i < ARRAY_SIZE(uncore_chas); i++) {
529 TEST_ASSERT_VAL("uncore_cha suffixes ordered lt",
530 pmu_name_cmp(uncore_chas[i-1], uncore_chas[i]) < 0);
531 TEST_ASSERT_VAL("uncore_cha suffixes ordered gt",
532 pmu_name_cmp(uncore_chas[i], uncore_chas[i-1]) > 0);
533 }
534 for (size_t i = 1; i < ARRAY_SIZE(mrvl_ddrs); i++) {
535 TEST_ASSERT_VAL("mrvl_ddr_pmu suffixes ordered lt",
536 pmu_name_cmp(mrvl_ddrs[i-1], mrvl_ddrs[i]) < 0);
537 TEST_ASSERT_VAL("mrvl_ddr_pmu suffixes ordered gt",
538 pmu_name_cmp(mrvl_ddrs[i], mrvl_ddrs[i-1]) > 0);
539 }
540 return TEST_OK;
541 }
542
543 /**
544 * Test perf_pmu__wildcard_match() that's used to search for a PMU given a name passed
545 * on the command line. The name that's passed may also be a filename type glob
546 * match. If the name does not match, perf_pmu__wildcard_match() attempts to match the
547 * alias of the PMU, if provided.
548 */
test__pmu_match(struct test_suite * test __maybe_unused,int subtest __maybe_unused)549 static int test__pmu_match(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
550 {
551 struct perf_pmu test_pmu = {
552 .name = "pmuname",
553 };
554
555 #define TEST_PMU_MATCH(msg, to_match, expect) \
556 TEST_ASSERT_EQUAL(msg, perf_pmu__wildcard_match(&test_pmu, to_match), expect)
557
558 TEST_PMU_MATCH("Exact match", "pmuname", true);
559 TEST_PMU_MATCH("Longer token", "longertoken", false);
560 TEST_PMU_MATCH("Shorter token", "pmu", false);
561
562 test_pmu.name = "pmuname_10";
563 TEST_PMU_MATCH("Diff suffix_", "pmuname_2", false);
564 TEST_PMU_MATCH("Sub suffix_", "pmuname_1", true);
565 TEST_PMU_MATCH("Same suffix_", "pmuname_10", true);
566 TEST_PMU_MATCH("No suffix_", "pmuname", true);
567 TEST_PMU_MATCH("Underscore_", "pmuname_", true);
568 TEST_PMU_MATCH("Substring_", "pmuna", false);
569
570 test_pmu.name = "pmuname_ab23";
571 TEST_PMU_MATCH("Diff suffix hex_", "pmuname_2", false);
572 TEST_PMU_MATCH("Sub suffix hex_", "pmuname_ab", true);
573 TEST_PMU_MATCH("Same suffix hex_", "pmuname_ab23", true);
574 TEST_PMU_MATCH("No suffix hex_", "pmuname", true);
575 TEST_PMU_MATCH("Underscore hex_", "pmuname_", true);
576 TEST_PMU_MATCH("Substring hex_", "pmuna", false);
577
578 test_pmu.name = "pmuname10";
579 TEST_PMU_MATCH("Diff suffix", "pmuname2", false);
580 TEST_PMU_MATCH("Sub suffix", "pmuname1", true);
581 TEST_PMU_MATCH("Same suffix", "pmuname10", true);
582 TEST_PMU_MATCH("No suffix", "pmuname", true);
583 TEST_PMU_MATCH("Underscore", "pmuname_", false);
584 TEST_PMU_MATCH("Substring", "pmuna", false);
585
586 test_pmu.name = "pmunameab23";
587 TEST_PMU_MATCH("Diff suffix hex", "pmuname2", false);
588 TEST_PMU_MATCH("Sub suffix hex", "pmunameab", true);
589 TEST_PMU_MATCH("Same suffix hex", "pmunameab23", true);
590 TEST_PMU_MATCH("No suffix hex", "pmuname", true);
591 TEST_PMU_MATCH("Underscore hex", "pmuname_", false);
592 TEST_PMU_MATCH("Substring hex", "pmuna", false);
593
594 /*
595 * 2 hex chars or less are not considered suffixes so it shouldn't be
596 * possible to wildcard by skipping the suffix. Therefore there are more
597 * false results here than above.
598 */
599 test_pmu.name = "pmuname_a3";
600 TEST_PMU_MATCH("Diff suffix 2 hex_", "pmuname_2", false);
601 /*
602 * This one should be false, but because pmuname_a3 ends in 3 which is
603 * decimal, it's not possible to determine if it's a short hex suffix or
604 * a normal decimal suffix following text. And we want to match on any
605 * length of decimal suffix. Run the test anyway and expect the wrong
606 * result. And slightly fuzzy matching shouldn't do too much harm.
607 */
608 TEST_PMU_MATCH("Sub suffix 2 hex_", "pmuname_a", true);
609 TEST_PMU_MATCH("Same suffix 2 hex_", "pmuname_a3", true);
610 TEST_PMU_MATCH("No suffix 2 hex_", "pmuname", false);
611 TEST_PMU_MATCH("Underscore 2 hex_", "pmuname_", false);
612 TEST_PMU_MATCH("Substring 2 hex_", "pmuna", false);
613
614 test_pmu.name = "pmuname_5";
615 TEST_PMU_MATCH("Glob 1", "pmu*", true);
616 TEST_PMU_MATCH("Glob 2", "nomatch*", false);
617 TEST_PMU_MATCH("Seq 1", "pmuname_[12345]", true);
618 TEST_PMU_MATCH("Seq 2", "pmuname_[67890]", false);
619 TEST_PMU_MATCH("? 1", "pmuname_?", true);
620 TEST_PMU_MATCH("? 2", "pmuname_1?", false);
621
622 return TEST_OK;
623 }
624
625 static struct test_case tests__pmu[] = {
626 TEST_CASE("Parsing with PMU format directory", pmu_format),
627 TEST_CASE("Parsing with PMU event", pmu_events),
628 TEST_CASE("PMU event names", pmu_event_names),
629 TEST_CASE("PMU name combining", name_len),
630 TEST_CASE("PMU name comparison", name_cmp),
631 TEST_CASE("PMU cmdline match", pmu_match),
632 TEST_CASE("PMU user config changes", pmu_usr_chgs),
633 { .name = NULL, }
634 };
635
636 struct test_suite suite__pmu = {
637 .desc = "Sysfs PMU tests",
638 .test_cases = tests__pmu,
639 };
640