1109 lines · c
1// SPDX-License-Identifier: GPL-2.02#include "math.h"3#include "parse-events.h"4#include "pmu.h"5#include "pmus.h"6#include "tests.h"7#include <errno.h>8#include <stdio.h>9#include <linux/kernel.h>10#include <linux/zalloc.h>11#include "debug.h"12#include "../pmu-events/pmu-events.h"13#include <perf/evlist.h>14#include "util/evlist.h"15#include "util/expr.h"16#include "util/hashmap.h"17#include "util/parse-events.h"18#include "metricgroup.h"19#include "stat.h"20 21struct perf_pmu_test_event {22 /* used for matching against events from generated pmu-events.c */23 struct pmu_event event;24 25 /* used for matching against event aliases */26 /* extra events for aliases */27 const char *alias_str;28 29 /*30 * Note: For when PublicDescription does not exist in the JSON, we31 * will have no long_desc in pmu_event.long_desc, but long_desc may32 * be set in the alias.33 */34 const char *alias_long_desc;35 36 /* PMU which we should match against */37 const char *matching_pmu;38};39 40struct perf_pmu_test_pmu {41 struct perf_pmu pmu;42 struct perf_pmu_test_event const *aliases[10];43};44 45static const struct perf_pmu_test_event bp_l1_btb_correct = {46 .event = {47 .pmu = "default_core",48 .name = "bp_l1_btb_correct",49 .event = "event=0x8a",50 .desc = "L1 BTB Correction",51 .topic = "branch",52 },53 .alias_str = "event=0x8a",54 .alias_long_desc = "L1 BTB Correction",55};56 57static const struct perf_pmu_test_event bp_l2_btb_correct = {58 .event = {59 .pmu = "default_core",60 .name = "bp_l2_btb_correct",61 .event = "event=0x8b",62 .desc = "L2 BTB Correction",63 .topic = "branch",64 },65 .alias_str = "event=0x8b",66 .alias_long_desc = "L2 BTB Correction",67};68 69static const struct perf_pmu_test_event segment_reg_loads_any = {70 .event = {71 .pmu = "default_core",72 .name = "segment_reg_loads.any",73 .event = "event=6,period=200000,umask=0x80",74 .desc = "Number of segment register loads",75 .topic = "other",76 },77 .alias_str = "event=0x6,period=0x30d40,umask=0x80",78 .alias_long_desc = "Number of segment register loads",79};80 81static const struct perf_pmu_test_event dispatch_blocked_any = {82 .event = {83 .pmu = "default_core",84 .name = "dispatch_blocked.any",85 .event = "event=9,period=200000,umask=0x20",86 .desc = "Memory cluster signals to block micro-op dispatch for any reason",87 .topic = "other",88 },89 .alias_str = "event=0x9,period=0x30d40,umask=0x20",90 .alias_long_desc = "Memory cluster signals to block micro-op dispatch for any reason",91};92 93static const struct perf_pmu_test_event eist_trans = {94 .event = {95 .pmu = "default_core",96 .name = "eist_trans",97 .event = "event=0x3a,period=200000",98 .desc = "Number of Enhanced Intel SpeedStep(R) Technology (EIST) transitions",99 .topic = "other",100 },101 .alias_str = "event=0x3a,period=0x30d40",102 .alias_long_desc = "Number of Enhanced Intel SpeedStep(R) Technology (EIST) transitions",103};104 105static const struct perf_pmu_test_event l3_cache_rd = {106 .event = {107 .pmu = "default_core",108 .name = "l3_cache_rd",109 .event = "event=0x40",110 .desc = "L3 cache access, read",111 .long_desc = "Attributable Level 3 cache access, read",112 .topic = "cache",113 },114 .alias_str = "event=0x40",115 .alias_long_desc = "Attributable Level 3 cache access, read",116};117 118static const struct perf_pmu_test_event *core_events[] = {119 &bp_l1_btb_correct,120 &bp_l2_btb_correct,121 &segment_reg_loads_any,122 &dispatch_blocked_any,123 &eist_trans,124 &l3_cache_rd,125 NULL126};127 128static const struct perf_pmu_test_event uncore_hisi_ddrc_flux_wcmd = {129 .event = {130 .name = "uncore_hisi_ddrc.flux_wcmd",131 .event = "event=2",132 .desc = "DDRC write commands",133 .topic = "uncore",134 .long_desc = "DDRC write commands",135 .pmu = "hisi_sccl,ddrc",136 },137 .alias_str = "event=0x2",138 .alias_long_desc = "DDRC write commands",139 .matching_pmu = "hisi_sccl1_ddrc2",140};141 142static const struct perf_pmu_test_event unc_cbo_xsnp_response_miss_eviction = {143 .event = {144 .name = "unc_cbo_xsnp_response.miss_eviction",145 .event = "event=0x22,umask=0x81",146 .desc = "A cross-core snoop resulted from L3 Eviction which misses in some processor core",147 .topic = "uncore",148 .long_desc = "A cross-core snoop resulted from L3 Eviction which misses in some processor core",149 .pmu = "uncore_cbox",150 },151 .alias_str = "event=0x22,umask=0x81",152 .alias_long_desc = "A cross-core snoop resulted from L3 Eviction which misses in some processor core",153 .matching_pmu = "uncore_cbox_0",154};155 156static const struct perf_pmu_test_event uncore_hyphen = {157 .event = {158 .name = "event-hyphen",159 .event = "event=0xe0",160 .desc = "UNC_CBO_HYPHEN",161 .topic = "uncore",162 .long_desc = "UNC_CBO_HYPHEN",163 .pmu = "uncore_cbox",164 },165 .alias_str = "event=0xe0",166 .alias_long_desc = "UNC_CBO_HYPHEN",167 .matching_pmu = "uncore_cbox_0",168};169 170static const struct perf_pmu_test_event uncore_two_hyph = {171 .event = {172 .name = "event-two-hyph",173 .event = "event=0xc0",174 .desc = "UNC_CBO_TWO_HYPH",175 .topic = "uncore",176 .long_desc = "UNC_CBO_TWO_HYPH",177 .pmu = "uncore_cbox",178 },179 .alias_str = "event=0xc0",180 .alias_long_desc = "UNC_CBO_TWO_HYPH",181 .matching_pmu = "uncore_cbox_0",182};183 184static const struct perf_pmu_test_event uncore_hisi_l3c_rd_hit_cpipe = {185 .event = {186 .name = "uncore_hisi_l3c.rd_hit_cpipe",187 .event = "event=7",188 .desc = "Total read hits",189 .topic = "uncore",190 .long_desc = "Total read hits",191 .pmu = "hisi_sccl,l3c",192 },193 .alias_str = "event=0x7",194 .alias_long_desc = "Total read hits",195 .matching_pmu = "hisi_sccl3_l3c7",196};197 198static const struct perf_pmu_test_event uncore_imc_free_running_cache_miss = {199 .event = {200 .name = "uncore_imc_free_running.cache_miss",201 .event = "event=0x12",202 .desc = "Total cache misses",203 .topic = "uncore",204 .long_desc = "Total cache misses",205 .pmu = "uncore_imc_free_running",206 },207 .alias_str = "event=0x12",208 .alias_long_desc = "Total cache misses",209 .matching_pmu = "uncore_imc_free_running_0",210};211 212static const struct perf_pmu_test_event uncore_imc_cache_hits = {213 .event = {214 .name = "uncore_imc.cache_hits",215 .event = "event=0x34",216 .desc = "Total cache hits",217 .topic = "uncore",218 .long_desc = "Total cache hits",219 .pmu = "uncore_imc",220 },221 .alias_str = "event=0x34",222 .alias_long_desc = "Total cache hits",223 .matching_pmu = "uncore_imc_0",224};225 226static const struct perf_pmu_test_event *uncore_events[] = {227 &uncore_hisi_ddrc_flux_wcmd,228 &unc_cbo_xsnp_response_miss_eviction,229 &uncore_hyphen,230 &uncore_two_hyph,231 &uncore_hisi_l3c_rd_hit_cpipe,232 &uncore_imc_free_running_cache_miss,233 &uncore_imc_cache_hits,234 NULL235};236 237static const struct perf_pmu_test_event sys_ddr_pmu_write_cycles = {238 .event = {239 .name = "sys_ddr_pmu.write_cycles",240 .event = "event=0x2b",241 .desc = "ddr write-cycles event",242 .topic = "uncore",243 .pmu = "uncore_sys_ddr_pmu",244 .compat = "v8",245 },246 .alias_str = "event=0x2b",247 .alias_long_desc = "ddr write-cycles event",248 .matching_pmu = "uncore_sys_ddr_pmu0",249};250 251static const struct perf_pmu_test_event sys_ccn_pmu_read_cycles = {252 .event = {253 .name = "sys_ccn_pmu.read_cycles",254 .event = "config=0x2c",255 .desc = "ccn read-cycles event",256 .topic = "uncore",257 .pmu = "uncore_sys_ccn_pmu",258 .compat = "0x01",259 },260 .alias_str = "config=0x2c",261 .alias_long_desc = "ccn read-cycles event",262 .matching_pmu = "uncore_sys_ccn_pmu4",263};264 265static const struct perf_pmu_test_event sys_cmn_pmu_hnf_cache_miss = {266 .event = {267 .name = "sys_cmn_pmu.hnf_cache_miss",268 .event = "eventid=1,type=5",269 .desc = "Counts total cache misses in first lookup result (high priority)",270 .topic = "uncore",271 .pmu = "uncore_sys_cmn_pmu",272 .compat = "(434|436|43c|43a).*",273 },274 .alias_str = "eventid=0x1,type=0x5",275 .alias_long_desc = "Counts total cache misses in first lookup result (high priority)",276 .matching_pmu = "uncore_sys_cmn_pmu0",277};278 279static const struct perf_pmu_test_event *sys_events[] = {280 &sys_ddr_pmu_write_cycles,281 &sys_ccn_pmu_read_cycles,282 &sys_cmn_pmu_hnf_cache_miss,283 NULL284};285 286static bool is_same(const char *reference, const char *test)287{288 if (!reference && !test)289 return true;290 291 if (reference && !test)292 return false;293 294 if (!reference && test)295 return false;296 297 return !strcmp(reference, test);298}299 300static int compare_pmu_events(const struct pmu_event *e1, const struct pmu_event *e2)301{302 if (!is_same(e1->name, e2->name)) {303 pr_debug2("testing event e1 %s: mismatched name string, %s vs %s\n",304 e1->name, e1->name, e2->name);305 return -1;306 }307 308 if (!is_same(e1->compat, e2->compat)) {309 pr_debug2("testing event e1 %s: mismatched compat string, %s vs %s\n",310 e1->name, e1->compat, e2->compat);311 return -1;312 }313 314 if (!is_same(e1->event, e2->event)) {315 pr_debug2("testing event e1 %s: mismatched event, %s vs %s\n",316 e1->name, e1->event, e2->event);317 return -1;318 }319 320 if (!is_same(e1->desc, e2->desc)) {321 pr_debug2("testing event e1 %s: mismatched desc, %s vs %s\n",322 e1->name, e1->desc, e2->desc);323 return -1;324 }325 326 if (!is_same(e1->topic, e2->topic)) {327 pr_debug2("testing event e1 %s: mismatched topic, %s vs %s\n",328 e1->name, e1->topic, e2->topic);329 return -1;330 }331 332 if (!is_same(e1->long_desc, e2->long_desc)) {333 pr_debug2("testing event e1 %s: mismatched long_desc, %s vs %s\n",334 e1->name, e1->long_desc, e2->long_desc);335 return -1;336 }337 338 if (!is_same(e1->pmu, e2->pmu)) {339 pr_debug2("testing event e1 %s: mismatched pmu string, %s vs %s\n",340 e1->name, e1->pmu, e2->pmu);341 return -1;342 }343 344 if (!is_same(e1->unit, e2->unit)) {345 pr_debug2("testing event e1 %s: mismatched unit, %s vs %s\n",346 e1->name, e1->unit, e2->unit);347 return -1;348 }349 350 if (e1->perpkg != e2->perpkg) {351 pr_debug2("testing event e1 %s: mismatched perpkg, %d vs %d\n",352 e1->name, e1->perpkg, e2->perpkg);353 return -1;354 }355 356 if (e1->deprecated != e2->deprecated) {357 pr_debug2("testing event e1 %s: mismatched deprecated, %d vs %d\n",358 e1->name, e1->deprecated, e2->deprecated);359 return -1;360 }361 362 return 0;363}364 365static int compare_alias_to_test_event(struct pmu_event_info *alias,366 struct perf_pmu_test_event const *test_event,367 char const *pmu_name)368{369 struct pmu_event const *event = &test_event->event;370 371 /* An alias was found, ensure everything is in order */372 if (!is_same(alias->name, event->name)) {373 pr_debug("testing aliases PMU %s: mismatched name, %s vs %s\n",374 pmu_name, alias->name, event->name);375 return -1;376 }377 378 if (!is_same(alias->desc, event->desc)) {379 pr_debug("testing aliases PMU %s: mismatched desc, %s vs %s\n",380 pmu_name, alias->desc, event->desc);381 return -1;382 }383 384 if (!is_same(alias->long_desc, test_event->alias_long_desc)) {385 pr_debug("testing aliases PMU %s: mismatched long_desc, %s vs %s\n",386 pmu_name, alias->long_desc,387 test_event->alias_long_desc);388 return -1;389 }390 391 if (!is_same(alias->topic, event->topic)) {392 pr_debug("testing aliases PMU %s: mismatched topic, %s vs %s\n",393 pmu_name, alias->topic, event->topic);394 return -1;395 }396 397 if (!is_same(alias->str, test_event->alias_str)) {398 pr_debug("testing aliases PMU %s: mismatched str, %s vs %s\n",399 pmu_name, alias->str, test_event->alias_str);400 return -1;401 }402 403 if (!is_same(alias->long_desc, test_event->alias_long_desc)) {404 pr_debug("testing aliases PMU %s: mismatched long desc, %s vs %s\n",405 pmu_name, alias->str, test_event->alias_long_desc);406 return -1;407 }408 409 if (!is_same(alias->pmu_name, test_event->event.pmu) &&410 !is_same(alias->pmu_name, "default_core")) {411 pr_debug("testing aliases PMU %s: mismatched pmu_name, %s vs %s\n",412 pmu_name, alias->pmu_name, test_event->event.pmu);413 return -1;414 }415 416 return 0;417}418 419static int test__pmu_event_table_core_callback(const struct pmu_event *pe,420 const struct pmu_events_table *table __maybe_unused,421 void *data)422{423 int *map_events = data;424 struct perf_pmu_test_event const **test_event_table;425 bool found = false;426 427 if (strcmp(pe->pmu, "default_core"))428 test_event_table = &uncore_events[0];429 else430 test_event_table = &core_events[0];431 432 for (; *test_event_table; test_event_table++) {433 struct perf_pmu_test_event const *test_event = *test_event_table;434 struct pmu_event const *event = &test_event->event;435 436 if (strcmp(pe->name, event->name))437 continue;438 found = true;439 (*map_events)++;440 441 if (compare_pmu_events(pe, event))442 return -1;443 444 pr_debug("testing event table %s: pass\n", pe->name);445 }446 if (!found) {447 pr_err("testing event table: could not find event %s\n", pe->name);448 return -1;449 }450 return 0;451}452 453static int test__pmu_event_table_sys_callback(const struct pmu_event *pe,454 const struct pmu_events_table *table __maybe_unused,455 void *data)456{457 int *map_events = data;458 struct perf_pmu_test_event const **test_event_table;459 bool found = false;460 461 test_event_table = &sys_events[0];462 463 for (; *test_event_table; test_event_table++) {464 struct perf_pmu_test_event const *test_event = *test_event_table;465 struct pmu_event const *event = &test_event->event;466 467 if (strcmp(pe->name, event->name))468 continue;469 found = true;470 (*map_events)++;471 472 if (compare_pmu_events(pe, event))473 return TEST_FAIL;474 475 pr_debug("testing sys event table %s: pass\n", pe->name);476 }477 if (!found) {478 pr_debug("testing sys event table: could not find event %s\n", pe->name);479 return TEST_FAIL;480 }481 return TEST_OK;482}483 484/* Verify generated events from pmu-events.c are as expected */485static int test__pmu_event_table(struct test_suite *test __maybe_unused,486 int subtest __maybe_unused)487{488 const struct pmu_events_table *sys_event_table =489 find_sys_events_table("pmu_events__test_soc_sys");490 const struct pmu_events_table *table = find_core_events_table("testarch", "testcpu");491 int map_events = 0, expected_events, err;492 493 /* ignore 3x sentinels */494 expected_events = ARRAY_SIZE(core_events) +495 ARRAY_SIZE(uncore_events) +496 ARRAY_SIZE(sys_events) - 3;497 498 if (!table || !sys_event_table)499 return -1;500 501 err = pmu_events_table__for_each_event(table, /*pmu=*/ NULL,502 test__pmu_event_table_core_callback,503 &map_events);504 if (err)505 return err;506 507 err = pmu_events_table__for_each_event(sys_event_table, /*pmu=*/ NULL,508 test__pmu_event_table_sys_callback,509 &map_events);510 if (err)511 return err;512 513 if (map_events != expected_events) {514 pr_err("testing event table: found %d, but expected %d\n",515 map_events, expected_events);516 return TEST_FAIL;517 }518 519 return 0;520}521 522struct test_core_pmu_event_aliases_cb_args {523 struct perf_pmu_test_event const *test_event;524 int *count;525};526 527static int test_core_pmu_event_aliases_cb(void *state, struct pmu_event_info *alias)528{529 struct test_core_pmu_event_aliases_cb_args *args = state;530 531 if (compare_alias_to_test_event(alias, args->test_event, alias->pmu->name))532 return -1;533 (*args->count)++;534 pr_debug2("testing aliases core PMU %s: matched event %s\n",535 alias->pmu_name, alias->name);536 return 0;537}538 539/* Verify aliases are as expected */540static int __test_core_pmu_event_aliases(const char *pmu_name, int *count)541{542 struct perf_pmu_test_event const **test_event_table;543 struct perf_pmu *pmu;544 int res = 0;545 const struct pmu_events_table *table = find_core_events_table("testarch", "testcpu");546 547 if (!table)548 return -1;549 550 test_event_table = &core_events[0];551 552 pmu = zalloc(sizeof(*pmu));553 if (!pmu)554 return -1;555 556 INIT_LIST_HEAD(&pmu->format);557 INIT_LIST_HEAD(&pmu->aliases);558 INIT_LIST_HEAD(&pmu->caps);559 INIT_LIST_HEAD(&pmu->list);560 pmu->name = strdup(pmu_name);561 pmu->is_core = true;562 563 pmu->events_table = table;564 pmu_add_cpu_aliases_table(pmu, table);565 pmu->cpu_aliases_added = true;566 pmu->sysfs_aliases_loaded = true;567 568 res = pmu_events_table__find_event(table, pmu, "bp_l1_btb_correct", NULL, NULL);569 if (res != 0) {570 pr_debug("Missing test event in test architecture");571 return res;572 }573 for (; *test_event_table; test_event_table++) {574 struct perf_pmu_test_event test_event = **test_event_table;575 struct pmu_event const *event = &test_event.event;576 struct test_core_pmu_event_aliases_cb_args args = {577 .test_event = &test_event,578 .count = count,579 };580 int err;581 582 test_event.event.pmu = pmu_name;583 err = perf_pmu__find_event(pmu, event->name, &args,584 test_core_pmu_event_aliases_cb);585 if (err)586 res = err;587 }588 perf_pmu__delete(pmu);589 590 return res;591}592 593static int __test_uncore_pmu_event_aliases(struct perf_pmu_test_pmu *test_pmu)594{595 int alias_count = 0, to_match_count = 0, matched_count = 0;596 struct perf_pmu_test_event const **table;597 struct perf_pmu *pmu = &test_pmu->pmu;598 const char *pmu_name = pmu->name;599 const struct pmu_events_table *events_table;600 int res = 0;601 602 events_table = find_core_events_table("testarch", "testcpu");603 if (!events_table)604 return -1;605 pmu->events_table = events_table;606 pmu_add_cpu_aliases_table(pmu, events_table);607 pmu->cpu_aliases_added = true;608 pmu->sysfs_aliases_loaded = true;609 pmu_add_sys_aliases(pmu);610 611 /* Count how many aliases we generated */612 alias_count = perf_pmu__num_events(pmu);613 614 /* Count how many aliases we expect from the known table */615 for (table = &test_pmu->aliases[0]; *table; table++)616 to_match_count++;617 618 if (alias_count != to_match_count) {619 pr_debug("testing aliases uncore PMU %s: mismatch expected aliases (%d) vs found (%d)\n",620 pmu_name, to_match_count, alias_count);621 return -1;622 }623 624 for (table = &test_pmu->aliases[0]; *table; table++) {625 struct perf_pmu_test_event test_event = **table;626 struct pmu_event const *event = &test_event.event;627 int err;628 struct test_core_pmu_event_aliases_cb_args args = {629 .test_event = &test_event,630 .count = &matched_count,631 };632 633 if (strcmp(pmu_name, test_event.matching_pmu)) {634 pr_debug("testing aliases uncore PMU %s: mismatched matching_pmu, %s vs %s\n",635 pmu_name, test_event.matching_pmu, pmu_name);636 return -1;637 }638 639 err = perf_pmu__find_event(pmu, event->name, &args,640 test_core_pmu_event_aliases_cb);641 if (err) {642 res = err;643 pr_debug("testing aliases uncore PMU %s: could not match alias %s\n",644 pmu_name, event->name);645 return -1;646 }647 }648 649 if (alias_count != matched_count) {650 pr_debug("testing aliases uncore PMU %s: mismatch found aliases (%d) vs matched (%d)\n",651 pmu_name, matched_count, alias_count);652 res = -1;653 }654 return res;655}656 657static struct perf_pmu_test_pmu test_pmus[] = {658 {659 .pmu = {660 .name = "hisi_sccl1_ddrc2",661 .is_uncore = 1,662 },663 .aliases = {664 &uncore_hisi_ddrc_flux_wcmd,665 },666 },667 {668 .pmu = {669 .name = "uncore_cbox_0",670 .is_uncore = 1,671 },672 .aliases = {673 &unc_cbo_xsnp_response_miss_eviction,674 &uncore_hyphen,675 &uncore_two_hyph,676 },677 },678 {679 .pmu = {680 .name = "hisi_sccl3_l3c7",681 .is_uncore = 1,682 },683 .aliases = {684 &uncore_hisi_l3c_rd_hit_cpipe,685 },686 },687 {688 .pmu = {689 .name = "uncore_imc_free_running_0",690 .is_uncore = 1,691 },692 .aliases = {693 &uncore_imc_free_running_cache_miss,694 },695 },696 {697 .pmu = {698 .name = "uncore_imc_0",699 .is_uncore = 1,700 },701 .aliases = {702 &uncore_imc_cache_hits,703 },704 },705 {706 .pmu = {707 .name = "uncore_sys_ddr_pmu0",708 .is_uncore = 1,709 .id = "v8",710 },711 .aliases = {712 &sys_ddr_pmu_write_cycles,713 },714 },715 {716 .pmu = {717 .name = "uncore_sys_ccn_pmu4",718 .is_uncore = 1,719 .id = "0x01",720 },721 .aliases = {722 &sys_ccn_pmu_read_cycles,723 },724 },725 {726 .pmu = {727 .name = (char *)"uncore_sys_cmn_pmu0",728 .is_uncore = 1,729 .id = (char *)"43401",730 },731 .aliases = {732 &sys_cmn_pmu_hnf_cache_miss,733 },734 },735 {736 .pmu = {737 .name = (char *)"uncore_sys_cmn_pmu0",738 .is_uncore = 1,739 .id = (char *)"43602",740 },741 .aliases = {742 &sys_cmn_pmu_hnf_cache_miss,743 },744 },745 {746 .pmu = {747 .name = (char *)"uncore_sys_cmn_pmu0",748 .is_uncore = 1,749 .id = (char *)"43c03",750 },751 .aliases = {752 &sys_cmn_pmu_hnf_cache_miss,753 },754 },755 {756 .pmu = {757 .name = (char *)"uncore_sys_cmn_pmu0",758 .is_uncore = 1,759 .id = (char *)"43a01",760 },761 .aliases = {762 &sys_cmn_pmu_hnf_cache_miss,763 },764 }765};766 767/* Test that aliases generated are as expected */768static int test__aliases(struct test_suite *test __maybe_unused,769 int subtest __maybe_unused)770{771 struct perf_pmu *pmu = NULL;772 unsigned long i;773 774 while ((pmu = perf_pmus__scan_core(pmu)) != NULL) {775 int count = 0;776 777 if (list_empty(&pmu->format)) {778 pr_debug2("skipping testing core PMU %s\n", pmu->name);779 continue;780 }781 782 if (__test_core_pmu_event_aliases(pmu->name, &count)) {783 pr_debug("testing core PMU %s aliases: failed\n", pmu->name);784 return -1;785 }786 787 if (count == 0) {788 pr_debug("testing core PMU %s aliases: no events to match\n",789 pmu->name);790 return -1;791 }792 793 pr_debug("testing core PMU %s aliases: pass\n", pmu->name);794 }795 796 for (i = 0; i < ARRAY_SIZE(test_pmus); i++) {797 int res;798 799 INIT_LIST_HEAD(&test_pmus[i].pmu.format);800 INIT_LIST_HEAD(&test_pmus[i].pmu.aliases);801 INIT_LIST_HEAD(&test_pmus[i].pmu.caps);802 803 res = __test_uncore_pmu_event_aliases(&test_pmus[i]);804 if (res)805 return res;806 }807 808 return 0;809}810 811static bool is_number(const char *str)812{813 char *end_ptr;814 double v;815 816 errno = 0;817 v = strtod(str, &end_ptr);818 (void)v; // We're not interested in this value, only if it is valid819 return errno == 0 && end_ptr != str;820}821 822static int check_parse_id(const char *id, struct parse_events_error *error)823{824 struct evlist *evlist;825 int ret;826 char *dup, *cur;827 828 /* Numbers are always valid. */829 if (is_number(id))830 return 0;831 832 evlist = evlist__new();833 if (!evlist)834 return -ENOMEM;835 836 dup = strdup(id);837 if (!dup)838 return -ENOMEM;839 840 for (cur = strchr(dup, '@') ; cur; cur = strchr(++cur, '@'))841 *cur = '/';842 843 ret = __parse_events(evlist, dup, /*pmu_filter=*/NULL, error, /*fake_pmu=*/true,844 /*warn_if_reordered=*/true, /*fake_tp=*/false);845 free(dup);846 847 evlist__delete(evlist);848 return ret;849}850 851static int check_parse_fake(const char *id)852{853 struct parse_events_error error;854 int ret;855 856 parse_events_error__init(&error);857 ret = check_parse_id(id, &error);858 parse_events_error__exit(&error);859 return ret;860}861 862struct metric {863 struct list_head list;864 struct metric_ref metric_ref;865};866 867static int test__parsing_callback(const struct pmu_metric *pm,868 const struct pmu_metrics_table *table,869 void *data)870{871 int *failures = data;872 int k;873 struct evlist *evlist;874 struct perf_cpu_map *cpus;875 struct evsel *evsel;876 struct rblist metric_events = {877 .nr_entries = 0,878 };879 int err = 0;880 881 if (!pm->metric_expr)882 return 0;883 884 pr_debug("Found metric '%s'\n", pm->metric_name);885 (*failures)++;886 887 /*888 * We need to prepare evlist for stat mode running on CPU 0889 * because that's where all the stats are going to be created.890 */891 evlist = evlist__new();892 if (!evlist)893 return -ENOMEM;894 895 cpus = perf_cpu_map__new("0");896 if (!cpus) {897 evlist__delete(evlist);898 return -ENOMEM;899 }900 901 perf_evlist__set_maps(&evlist->core, cpus, NULL);902 903 err = metricgroup__parse_groups_test(evlist, table, pm->metric_name, &metric_events);904 if (err) {905 if (!strcmp(pm->metric_name, "M1") || !strcmp(pm->metric_name, "M2") ||906 !strcmp(pm->metric_name, "M3")) {907 (*failures)--;908 pr_debug("Expected broken metric %s skipping\n", pm->metric_name);909 err = 0;910 }911 goto out_err;912 }913 914 err = evlist__alloc_stats(/*config=*/NULL, evlist, /*alloc_raw=*/false);915 if (err)916 goto out_err;917 /*918 * Add all ids with a made up value. The value may trigger divide by919 * zero when subtracted and so try to make them unique.920 */921 k = 1;922 evlist__alloc_aggr_stats(evlist, 1);923 evlist__for_each_entry(evlist, evsel) {924 evsel->stats->aggr->counts.val = k;925 if (evsel__name_is(evsel, "duration_time"))926 update_stats(&walltime_nsecs_stats, k);927 k++;928 }929 evlist__for_each_entry(evlist, evsel) {930 struct metric_event *me = metricgroup__lookup(&metric_events, evsel, false);931 932 if (me != NULL) {933 struct metric_expr *mexp;934 935 list_for_each_entry (mexp, &me->head, nd) {936 if (strcmp(mexp->metric_name, pm->metric_name))937 continue;938 pr_debug("Result %f\n", test_generic_metric(mexp, 0));939 err = 0;940 (*failures)--;941 goto out_err;942 }943 }944 }945 pr_debug("Didn't find parsed metric %s", pm->metric_name);946 err = 1;947out_err:948 if (err)949 pr_debug("Broken metric %s\n", pm->metric_name);950 951 /* ... cleanup. */952 metricgroup__rblist_exit(&metric_events);953 evlist__free_stats(evlist);954 perf_cpu_map__put(cpus);955 evlist__delete(evlist);956 return err;957}958 959static int test__parsing(struct test_suite *test __maybe_unused,960 int subtest __maybe_unused)961{962 int failures = 0;963 964 pmu_for_each_core_metric(test__parsing_callback, &failures);965 pmu_for_each_sys_metric(test__parsing_callback, &failures);966 967 return failures == 0 ? TEST_OK : TEST_FAIL;968}969 970struct test_metric {971 const char *str;972};973 974static struct test_metric metrics[] = {975 { "(unc_p_power_state_occupancy.cores_c0 / unc_p_clockticks) * 100." },976 { "imx8_ddr0@read\\-cycles@ * 4 * 4", },977 { "imx8_ddr0@axid\\-read\\,axi_mask\\=0xffff\\,axi_id\\=0x0000@ * 4", },978 { "(cstate_pkg@c2\\-residency@ / msr@tsc@) * 100", },979 { "(imx8_ddr0@read\\-cycles@ + imx8_ddr0@write\\-cycles@)", },980};981 982static int metric_parse_fake(const char *metric_name, const char *str)983{984 struct expr_parse_ctx *ctx;985 struct hashmap_entry *cur;986 double result;987 int ret = -1;988 size_t bkt;989 int i;990 991 pr_debug("parsing '%s': '%s'\n", metric_name, str);992 993 ctx = expr__ctx_new();994 if (!ctx) {995 pr_debug("expr__ctx_new failed");996 return TEST_FAIL;997 }998 ctx->sctx.is_test = true;999 if (expr__find_ids(str, NULL, ctx) < 0) {1000 pr_err("expr__find_ids failed\n");1001 return -1;1002 }1003 1004 /*1005 * Add all ids with a made up value. The value may1006 * trigger divide by zero when subtracted and so try to1007 * make them unique.1008 */1009 i = 1;1010 hashmap__for_each_entry(ctx->ids, cur, bkt)1011 expr__add_id_val(ctx, strdup(cur->pkey), i++);1012 1013 hashmap__for_each_entry(ctx->ids, cur, bkt) {1014 if (check_parse_fake(cur->pkey)) {1015 pr_err("check_parse_fake failed\n");1016 goto out;1017 }1018 }1019 1020 ret = 0;1021 if (expr__parse(&result, ctx, str)) {1022 /*1023 * Parsing failed, make numbers go from large to small which can1024 * resolve divide by zero issues.1025 */1026 i = 1024;1027 hashmap__for_each_entry(ctx->ids, cur, bkt)1028 expr__add_id_val(ctx, strdup(cur->pkey), i--);1029 if (expr__parse(&result, ctx, str)) {1030 pr_err("expr__parse failed for %s\n", metric_name);1031 /* The following have hard to avoid divide by zero. */1032 if (!strcmp(metric_name, "tma_clears_resteers") ||1033 !strcmp(metric_name, "tma_mispredicts_resteers"))1034 ret = 0;1035 else1036 ret = -1;1037 }1038 }1039 1040out:1041 expr__ctx_free(ctx);1042 return ret;1043}1044 1045static int test__parsing_fake_callback(const struct pmu_metric *pm,1046 const struct pmu_metrics_table *table __maybe_unused,1047 void *data __maybe_unused)1048{1049 return metric_parse_fake(pm->metric_name, pm->metric_expr);1050}1051 1052/*1053 * Parse all the metrics for current architecture, or all defined cpus via the1054 * 'fake_pmu' in parse_events.1055 */1056static int test__parsing_fake(struct test_suite *test __maybe_unused,1057 int subtest __maybe_unused)1058{1059 int err = 0;1060 1061 for (size_t i = 0; i < ARRAY_SIZE(metrics); i++) {1062 err = metric_parse_fake("", metrics[i].str);1063 if (err)1064 return err;1065 }1066 1067 err = pmu_for_each_core_metric(test__parsing_fake_callback, NULL);1068 if (err)1069 return err;1070 1071 return pmu_for_each_sys_metric(test__parsing_fake_callback, NULL);1072}1073 1074static int test__parsing_threshold_callback(const struct pmu_metric *pm,1075 const struct pmu_metrics_table *table __maybe_unused,1076 void *data __maybe_unused)1077{1078 if (!pm->metric_threshold)1079 return 0;1080 return metric_parse_fake(pm->metric_name, pm->metric_threshold);1081}1082 1083static int test__parsing_threshold(struct test_suite *test __maybe_unused,1084 int subtest __maybe_unused)1085{1086 int err = 0;1087 1088 err = pmu_for_each_core_metric(test__parsing_threshold_callback, NULL);1089 if (err)1090 return err;1091 1092 return pmu_for_each_sys_metric(test__parsing_threshold_callback, NULL);1093}1094 1095static struct test_case pmu_events_tests[] = {1096 TEST_CASE("PMU event table sanity", pmu_event_table),1097 TEST_CASE("PMU event map aliases", aliases),1098 TEST_CASE_REASON("Parsing of PMU event table metrics", parsing,1099 "some metrics failed"),1100 TEST_CASE("Parsing of PMU event table metrics with fake PMUs", parsing_fake),1101 TEST_CASE("Parsing of metric thresholds with fake PMUs", parsing_threshold),1102 { .name = NULL, }1103};1104 1105struct test_suite suite__pmu_events = {1106 .desc = "PMU JSON event tests",1107 .test_cases = pmu_events_tests,1108};1109