1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2018, Matthew Macy 5 * Copyright (c) 2021, The FreeBSD Foundation 6 * 7 * Portions of this software were developed by Mitchell Horne 8 * under sponsorship from the FreeBSD Foundation. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 */ 32 33 #include <sys/types.h> 34 #include <sys/errno.h> 35 #include <sys/pmc.h> 36 #include <sys/sysctl.h> 37 #include <stddef.h> 38 #include <stdlib.h> 39 #include <limits.h> 40 #include <regex.h> 41 #include <string.h> 42 #include <pmc.h> 43 #include <pmclog.h> 44 #include <assert.h> 45 #include <libpmcstat.h> 46 #include "pmu-events/pmu-events.h" 47 48 struct pmu_alias { 49 const char *pa_alias; 50 const char *pa_name; 51 }; 52 53 #if defined(__amd64__) || defined(__i386__) 54 typedef enum { 55 PMU_INVALID, 56 PMU_INTEL, 57 PMU_AMD, 58 } pmu_mfr_t; 59 60 static struct pmu_alias pmu_intel_alias_table[] = { 61 {"UNHALTED_CORE_CYCLES", "cpu_clk_unhalted.thread"}, 62 {"UNHALTED-CORE-CYCLES", "cpu_clk_unhalted.thread"}, 63 {"LLC_MISSES", "LONGEST_LAT_CACHE.MISS"}, 64 {"LLC-MISSES", "LONGEST_LAT_CACHE.MISS"}, 65 {"LLC_REFERENCE", "LONGEST_LAT_CACHE.REFERENCE"}, 66 {"LLC-REFERENCE", "LONGEST_LAT_CACHE.REFERENCE"}, 67 {"LLC_MISS_RHITM", "mem_load_l3_miss_retired.remote_hitm"}, 68 {"LLC-MISS-RHITM", "mem_load_l3_miss_retired.remote_hitm"}, 69 {"RESOURCE_STALL", "RESOURCE_STALLS.ANY"}, 70 {"RESOURCE_STALLS_ANY", "RESOURCE_STALLS.ANY"}, 71 {"BRANCH_INSTRUCTION_RETIRED", "BR_INST_RETIRED.ALL_BRANCHES"}, 72 {"BRANCH-INSTRUCTION-RETIRED", "BR_INST_RETIRED.ALL_BRANCHES"}, 73 {"BRANCH_MISSES_RETIRED", "BR_MISP_RETIRED.ALL_BRANCHES"}, 74 {"BRANCH-MISSES-RETIRED", "BR_MISP_RETIRED.ALL_BRANCHES"}, 75 {"unhalted-cycles", "cpu_clk_unhalted.thread"}, 76 {"instructions", "inst_retired.any"}, 77 {"branch-mispredicts", "br_misp_retired.all_branches"}, 78 {"branches", "br_inst_retired.all_branches"}, 79 {"interrupts", "hw_interrupts.received"}, 80 {"ic-misses", "frontend_retired.l1i_miss"}, 81 {NULL, NULL}, 82 }; 83 84 static struct pmu_alias pmu_amd_alias_table[] = { 85 {"UNHALTED_CORE_CYCLES", "ls_not_halted_cyc"}, 86 {"UNHALTED-CORE-CYCLES", "ls_not_halted_cyc"}, 87 {"LLC_MISSES", "l3_comb_clstr_state.request_miss"}, 88 {"LLC-MISSES", "l3_comb_clstr_state.request_miss"}, 89 {"LLC_REFERENCE", "l3_request_g1.caching_l3_cache_accesses"}, 90 {"LLC-REFERENCE", "l3_request_g1.caching_l3_cache_accesses"}, 91 {"BRANCH_INSTRUCTION_RETIRED", "ex_ret_brn"}, 92 {"BRANCH-INSTRUCTION-RETIRED", "ex_ret_brn"}, 93 {"BRANCH_MISSES_RETIRED", "ex_ret_brn_misp"}, 94 {"BRANCH-MISSES-RETIRED", "ex_ret_brn_misp"}, 95 {"unhalted-cycles", "ls_not_halted_cyc"}, 96 {"instructions", "ex_ret_instr",}, 97 {"branch-mispredicts", "ex_ret_brn_misp"}, 98 {"branches", "ex_ret_brn"}, 99 {"interrupts", "ls_int_taken"}, /* Not on amdzen1 */ 100 {NULL, NULL}, 101 }; 102 103 104 static pmu_mfr_t 105 pmu_events_mfr(void) 106 { 107 char buf[PMC_CPUID_LEN]; 108 size_t s = sizeof(buf); 109 pmu_mfr_t mfr; 110 111 if (sysctlbyname("kern.hwpmc.cpuid", buf, &s, 112 (void *)NULL, 0) == -1) 113 return (PMU_INVALID); 114 if (strcasestr(buf, "AuthenticAMD") != NULL || 115 strcasestr(buf, "HygonGenuine") != NULL) 116 mfr = PMU_AMD; 117 else if (strcasestr(buf, "GenuineIntel") != NULL) 118 mfr = PMU_INTEL; 119 else 120 mfr = PMU_INVALID; 121 return (mfr); 122 } 123 124 static int 125 pmu_events_x86_family(void) 126 { 127 char buf[PMC_CPUID_LEN]; 128 size_t s = sizeof(buf); 129 char *cpuid, *family; 130 131 if (sysctlbyname("kern.hwpmc.cpuid", buf, &s, 132 (void *)NULL, 0) == -1) 133 return (-1); 134 cpuid = &buf[0]; 135 136 strsep(&cpuid, "-"); 137 family = strsep(&cpuid, "-"); 138 139 return (strtol(family, NULL, 10)); 140 } 141 142 /* 143 * The Intel fixed mode counters are: 144 * "inst_retired.any", 145 * "cpu_clk_unhalted.thread", 146 * "cpu_clk_unhalted.thread_any", 147 * "cpu_clk_unhalted.ref_tsc", 148 * 149 */ 150 151 static const char * 152 pmu_alias_get(const char *name) 153 { 154 pmu_mfr_t mfr; 155 struct pmu_alias *pa; 156 struct pmu_alias *pmu_alias_table; 157 158 if ((mfr = pmu_events_mfr()) == PMU_INVALID) 159 return (name); 160 if (mfr == PMU_AMD) 161 pmu_alias_table = pmu_amd_alias_table; 162 else if (mfr == PMU_INTEL) 163 pmu_alias_table = pmu_intel_alias_table; 164 else 165 return (name); 166 167 for (pa = pmu_alias_table; pa->pa_alias != NULL; pa++) 168 if (strcasecmp(name, pa->pa_alias) == 0) 169 return (pa->pa_name); 170 171 return (name); 172 } 173 #elif defined(__powerpc64__) 174 175 static const char * 176 pmu_alias_get(const char *name) 177 { 178 return (name); 179 } 180 181 #elif defined(__aarch64__) 182 183 static struct pmu_alias pmu_armv8_alias_table[] = { 184 {"UNHALTED_CORE_CYCLES", "CPU_CYCLES"}, 185 {"UNHALTED-CORE-CYCLES", "CPU_CYCLES"}, 186 {"LLC_MISSES", "LL_CACHE_MISS_RD"}, 187 {"LLC-MISSES", "LL_CACHE_MISS_RD"}, 188 {"LLC_REFERENCE", "LL_CACHE_RD"}, 189 {"LLC-REFERENCE", "LL_CACHE_RD"}, 190 {"BRANCH_INSTRUCTION_RETIRED", "BR_RETIRED"}, 191 {"BRANCH-INSTRUCTION-RETIRED", "BR_RETIRED"}, 192 {"BRANCH_MISSES_RETIRED", "BR_MIS_PRED_RETIRED"}, 193 {"BRANCH-MISSES-RETIRED", "BR_MIS_PRED_RETIRED"}, 194 {"unhalted-cycles", "CPU_CYCLES"}, 195 {"instructions", "INST_RETIRED",}, 196 {"branch-mispredicts", "BR_MIS_PRED_RETIRED"}, 197 {"branches", "BR_RETIRED"}, 198 {"interrupts", "EXC_IRQ"}, 199 {NULL, NULL}, 200 }; 201 202 static const char * 203 pmu_alias_get(const char *name) 204 { 205 struct pmu_alias *pa; 206 207 for (pa = pmu_armv8_alias_table; pa->pa_alias != NULL; pa++) 208 if (strcasecmp(name, pa->pa_alias) == 0) 209 return (pa->pa_name); 210 211 return (name); 212 } 213 214 #else 215 216 static const char * 217 pmu_alias_get(const char *name) 218 { 219 220 return (name); 221 } 222 #endif 223 224 struct pmu_event_desc { 225 uint64_t ped_period; 226 uint64_t ped_offcore_rsp; 227 uint64_t ped_l3_thread; 228 uint64_t ped_l3_slice; 229 uint32_t ped_sourceid; 230 uint32_t ped_coreid; 231 uint32_t ped_allsources; 232 uint32_t ped_allcores; 233 uint32_t ped_event; 234 uint32_t ped_frontend; 235 uint32_t ped_ldlat; 236 uint32_t ped_config1; 237 int16_t ped_umask; 238 uint8_t ped_cmask; 239 uint8_t ped_any; 240 uint8_t ped_inv; 241 uint8_t ped_edge; 242 uint8_t ped_fc_mask; 243 uint8_t ped_ch_mask; 244 }; 245 246 static const struct pmu_events_map * 247 pmu_events_map_get(const char *cpuid) 248 { 249 regex_t re; 250 regmatch_t pmatch[1]; 251 char buf[PMC_CPUID_LEN]; 252 size_t s = sizeof(buf); 253 int match; 254 const struct pmu_events_map *pme; 255 256 if (cpuid != NULL) { 257 strlcpy(buf, cpuid, s); 258 } else { 259 if (sysctlbyname("kern.hwpmc.cpuid", buf, &s, 260 (void *)NULL, 0) == -1) 261 return (NULL); 262 } 263 for (pme = pmu_events_map; pme->cpuid != NULL; pme++) { 264 if (regcomp(&re, pme->cpuid, REG_EXTENDED) != 0) { 265 printf("regex '%s' failed to compile, ignoring\n", 266 pme->cpuid); 267 continue; 268 } 269 match = regexec(&re, buf, 1, pmatch, 0); 270 regfree(&re); 271 if (match == 0) { 272 if (pmatch[0].rm_so == 0 && (buf[pmatch[0].rm_eo] == 0 273 || buf[pmatch[0].rm_eo] == '-')) 274 return (pme); 275 } 276 } 277 return (NULL); 278 } 279 280 static const struct pmu_event * 281 pmu_event_get(const char *cpuid, const char *event_name, int *idx) 282 { 283 const struct pmu_events_map *pme; 284 const struct pmu_event *pe; 285 int i; 286 287 if ((pme = pmu_events_map_get(cpuid)) == NULL) 288 return (NULL); 289 for (i = 0, pe = pme->table; pe->name || pe->desc || pe->event; pe++, i++) { 290 if (pe->name == NULL) 291 continue; 292 if (strcasecmp(pe->name, event_name) == 0) { 293 if (idx) 294 *idx = i; 295 return (pe); 296 } 297 } 298 return (NULL); 299 } 300 301 int 302 pmc_pmu_idx_get_by_event(const char *cpuid, const char *event) 303 { 304 int idx; 305 const char *realname; 306 307 realname = pmu_alias_get(event); 308 if (pmu_event_get(cpuid, realname, &idx) == NULL) 309 return (-1); 310 return (idx); 311 } 312 313 const char * 314 pmc_pmu_event_get_by_idx(const char *cpuid, int idx) 315 { 316 const struct pmu_events_map *pme; 317 318 if ((pme = pmu_events_map_get(cpuid)) == NULL) 319 return (NULL); 320 assert(pme->table[idx].name); 321 return (pme->table[idx].name); 322 } 323 324 static int 325 pmu_parse_event(struct pmu_event_desc *ped, const char *eventin) 326 { 327 char *event; 328 char *kvp, *key, *value, *r; 329 char *debug; 330 331 if ((event = strdup(eventin)) == NULL) 332 return (ENOMEM); 333 r = event; 334 bzero(ped, sizeof(*ped)); 335 ped->ped_period = DEFAULT_SAMPLE_COUNT; 336 ped->ped_umask = -1; 337 while ((kvp = strsep(&event, ",")) != NULL) { 338 key = strsep(&kvp, "="); 339 if (key == NULL) 340 abort(); 341 value = kvp; 342 if (strcmp(key, "umask") == 0) 343 ped->ped_umask = strtol(value, NULL, 16); 344 else if (strcmp(key, "event") == 0) 345 ped->ped_event = strtol(value, NULL, 16); 346 else if (strcmp(key, "period") == 0) 347 ped->ped_period = strtol(value, NULL, 10); 348 else if (strcmp(key, "offcore_rsp") == 0) 349 ped->ped_offcore_rsp = strtol(value, NULL, 16); 350 else if (strcmp(key, "any") == 0) 351 ped->ped_any = strtol(value, NULL, 10); 352 else if (strcmp(key, "cmask") == 0) 353 ped->ped_cmask = strtol(value, NULL, 10); 354 else if (strcmp(key, "inv") == 0) 355 ped->ped_inv = strtol(value, NULL, 10); 356 else if (strcmp(key, "edge") == 0) 357 ped->ped_edge = strtol(value, NULL, 10); 358 else if (strcmp(key, "frontend") == 0) 359 ped->ped_frontend = strtol(value, NULL, 16); 360 else if (strcmp(key, "ldlat") == 0) 361 ped->ped_ldlat = strtol(value, NULL, 16); 362 else if (strcmp(key, "fc_mask") == 0) 363 ped->ped_fc_mask = strtol(value, NULL, 16); 364 else if (strcmp(key, "ch_mask") == 0) 365 ped->ped_ch_mask = strtol(value, NULL, 16); 366 else if (strcmp(key, "config1") == 0) 367 ped->ped_config1 = strtol(value, NULL, 16); 368 else if (strcmp(key, "l3_thread_mask") == 0) 369 ped->ped_l3_thread = strtol(value, NULL, 16); 370 else if (strcmp(key, "l3_slice_mask") == 0) 371 ped->ped_l3_slice = strtol(value, NULL, 16); 372 else if (strcmp(key, "sourceid") == 0) 373 ped->ped_sourceid = strtol(value, NULL, 16); 374 else if (strcmp(key, "coreid") == 0) 375 ped->ped_coreid = strtol(value, NULL, 16); 376 else if (strcmp(key, "allcores") == 0) 377 ped->ped_allcores = strtol(value, NULL, 10); 378 else if (strcmp(key, "allsources") == 0) 379 ped->ped_allsources = strtol(value, NULL, 10); 380 else { 381 debug = getenv("PMUDEBUG"); 382 if (debug != NULL && strcmp(debug, "true") == 0 && value != NULL) 383 printf("unrecognized kvpair: %s:%s\n", key, value); 384 } 385 } 386 free(r); 387 return (0); 388 } 389 390 uint64_t 391 pmc_pmu_sample_rate_get(const char *event_name) 392 { 393 const struct pmu_event *pe; 394 struct pmu_event_desc ped; 395 396 event_name = pmu_alias_get(event_name); 397 if ((pe = pmu_event_get(NULL, event_name, NULL)) == NULL) 398 return (DEFAULT_SAMPLE_COUNT); 399 if (pe->event == NULL) 400 return (DEFAULT_SAMPLE_COUNT); 401 if (pmu_parse_event(&ped, pe->event)) 402 return (DEFAULT_SAMPLE_COUNT); 403 return (ped.ped_period); 404 } 405 406 int 407 pmc_pmu_enabled(void) 408 { 409 410 return (pmu_events_map_get(NULL) != NULL); 411 } 412 413 void 414 pmc_pmu_print_counters(const char *event_name) 415 { 416 const struct pmu_events_map *pme; 417 const struct pmu_event *pe; 418 struct pmu_event_desc ped; 419 char *debug; 420 int do_debug; 421 422 debug = getenv("PMUDEBUG"); 423 do_debug = 0; 424 425 if (debug != NULL && strcmp(debug, "true") == 0) 426 do_debug = 1; 427 if ((pme = pmu_events_map_get(NULL)) == NULL) 428 return; 429 for (pe = pme->table; pe->name || pe->desc || pe->event; pe++) { 430 if (pe->name == NULL) 431 continue; 432 if (event_name != NULL && strcasestr(pe->name, event_name) == NULL) 433 continue; 434 printf("\t%s\n", pe->name); 435 if (do_debug) 436 pmu_parse_event(&ped, pe->event); 437 } 438 } 439 440 void 441 pmc_pmu_print_counter_desc(const char *ev) 442 { 443 const struct pmu_events_map *pme; 444 const struct pmu_event *pe; 445 446 if ((pme = pmu_events_map_get(NULL)) == NULL) 447 return; 448 for (pe = pme->table; pe->name || pe->desc || pe->event; pe++) { 449 if (pe->name == NULL) 450 continue; 451 if (strcasestr(pe->name, ev) != NULL && 452 pe->desc != NULL) 453 printf("%s:\t%s\n", pe->name, pe->desc); 454 } 455 } 456 457 void 458 pmc_pmu_print_counter_desc_long(const char *ev) 459 { 460 const struct pmu_events_map *pme; 461 const struct pmu_event *pe; 462 463 if ((pme = pmu_events_map_get(NULL)) == NULL) 464 return; 465 for (pe = pme->table; pe->name || pe->desc || pe->event; pe++) { 466 if (pe->name == NULL) 467 continue; 468 if (strcasestr(pe->name, ev) != NULL) { 469 if (pe->long_desc != NULL) 470 printf("%s:\n%s\n", pe->name, pe->long_desc); 471 else if (pe->desc != NULL) 472 printf("%s:\t%s\n", pe->name, pe->desc); 473 } 474 } 475 } 476 477 void 478 pmc_pmu_print_counter_full(const char *ev) 479 { 480 const struct pmu_events_map *pme; 481 const struct pmu_event *pe; 482 483 if ((pme = pmu_events_map_get(NULL)) == NULL) 484 return; 485 for (pe = pme->table; pe->name || pe->desc || pe->event; pe++) { 486 if (pe->name == NULL) 487 continue; 488 if (strcasestr(pe->name, ev) == NULL) 489 continue; 490 printf("name: %s\n", pe->name); 491 if (pe->long_desc != NULL) 492 printf("desc: %s\n", pe->long_desc); 493 else if (pe->desc != NULL) 494 printf("desc: %s\n", pe->desc); 495 if (pe->event != NULL) 496 printf("event: %s\n", pe->event); 497 if (pe->topic != NULL) 498 printf("topic: %s\n", pe->topic); 499 if (pe->pmu != NULL) 500 printf("pmu: %s\n", pe->pmu); 501 if (pe->unit != NULL) 502 printf("unit: %s\n", pe->unit); 503 if (pe->perpkg != NULL) 504 printf("perpkg: %s\n", pe->perpkg); 505 if (pe->metric_expr != NULL) 506 printf("metric_expr: %s\n", pe->metric_expr); 507 if (pe->metric_name != NULL) 508 printf("metric_name: %s\n", pe->metric_name); 509 if (pe->metric_group != NULL) 510 printf("metric_group: %s\n", pe->metric_group); 511 } 512 } 513 514 #if defined(__amd64__) || defined(__i386__) 515 static int 516 pmc_pmu_amd_pmcallocate(const char *event_name, struct pmc_op_pmcallocate *pm, 517 struct pmu_event_desc *ped) 518 { 519 int cpu_family; 520 struct pmc_md_amd_op_pmcallocate *amd; 521 const struct pmu_event *pe; 522 int idx = -1; 523 524 cpu_family = pmu_events_x86_family(); 525 526 amd = &pm->pm_md.pm_amd; 527 if (ped->ped_umask > 0) { 528 pm->pm_caps |= PMC_CAP_QUALIFIER; 529 } 530 pm->pm_class = PMC_CLASS_K8; 531 pe = pmu_event_get(NULL, event_name, &idx); 532 533 if (pe->pmu == NULL) { 534 amd->pm_amd_config |= AMD_PMC_TO_EVENTMASK(ped->ped_event); 535 amd->pm_amd_config |= AMD_PMC_TO_UNITMASK(ped->ped_umask); 536 amd->pm_amd_sub_class = PMC_AMD_SUB_CLASS_CORE; 537 if ((pm->pm_caps & (PMC_CAP_USER|PMC_CAP_SYSTEM)) == 0 || 538 (pm->pm_caps & (PMC_CAP_USER|PMC_CAP_SYSTEM)) == 539 (PMC_CAP_USER|PMC_CAP_SYSTEM)) 540 amd->pm_amd_config |= (AMD_PMC_USR | AMD_PMC_OS); 541 else if (pm->pm_caps & PMC_CAP_USER) 542 amd->pm_amd_config |= AMD_PMC_USR; 543 else if (pm->pm_caps & PMC_CAP_SYSTEM) 544 amd->pm_amd_config |= AMD_PMC_OS; 545 if (ped->ped_edge) 546 amd->pm_amd_config |= AMD_PMC_EDGE; 547 if (ped->ped_inv) 548 amd->pm_amd_config |= AMD_PMC_INVERT; 549 if (pm->pm_caps & PMC_CAP_INTERRUPT) 550 amd->pm_amd_config |= AMD_PMC_INT; 551 if (pm->pm_caps & PMC_CAP_PRECISE) 552 amd->pm_amd_config |= AMD_PMC_PRECISERETIRE; 553 } else if (strcmp("amd_l3", pe->pmu) == 0) { 554 amd->pm_amd_config |= AMD_PMC_L3_TO_EVENTMASK(ped->ped_event); 555 amd->pm_amd_config |= AMD_PMC_L3_TO_UNITMASK(ped->ped_umask); 556 amd->pm_amd_sub_class = PMC_AMD_SUB_CLASS_L3_CACHE; 557 if (cpu_family <= 0x17) { 558 amd->pm_amd_config |= 559 AMD_PMC_L31_TO_SLICE(ped->ped_l3_slice); 560 amd->pm_amd_config |= 561 AMD_PMC_L31_TO_CORE(ped->ped_l3_thread); 562 } else { 563 amd->pm_amd_config |= 564 AMD_PMC_L32_TO_THREAD(ped->ped_l3_thread); 565 amd->pm_amd_config |= 566 AMD_PMC_L32_TO_SOURCEID(ped->ped_sourceid); 567 amd->pm_amd_config |= 568 AMD_PMC_L32_TO_COREID(ped->ped_coreid); 569 if (ped->ped_allcores) 570 amd->pm_amd_config |= AMD_PMC_L32_ALLCORES; 571 if (ped->ped_allsources) 572 amd->pm_amd_config |= AMD_PMC_L32_ALLSOURCES; 573 } 574 } else if (strcmp("amd_df", pe->pmu) == 0) { 575 amd->pm_amd_sub_class = PMC_AMD_SUB_CLASS_DATA_FABRIC; 576 if (cpu_family <= 19) { 577 amd->pm_amd_config |= 578 AMD_PMC_DF1_TO_EVENTMASK(ped->ped_event); 579 amd->pm_amd_config |= 580 AMD_PMC_DF1_TO_UNITMASK(ped->ped_umask); 581 } else { 582 amd->pm_amd_config |= 583 AMD_PMC_DF2_TO_EVENTMASK(ped->ped_event); 584 amd->pm_amd_config |= 585 AMD_PMC_DF2_TO_UNITMASK(ped->ped_umask); 586 } 587 } else { 588 printf("PMC pmu '%s' is not supported!\n", pe->pmu); 589 return (EOPNOTSUPP); 590 } 591 592 return (0); 593 } 594 595 static int 596 pmc_pmu_intel_pmcallocate(const char *event_name, struct pmc_op_pmcallocate *pm, 597 struct pmu_event_desc *ped) 598 { 599 struct pmc_md_iap_op_pmcallocate *iap; 600 601 iap = &pm->pm_md.pm_iap; 602 if (strcasestr(event_name, "UNC_") == event_name || 603 strcasestr(event_name, "uncore") != NULL) { 604 pm->pm_class = PMC_CLASS_UCP; 605 pm->pm_caps |= PMC_CAP_QUALIFIER; 606 } else if (ped->ped_event == 0x0) { 607 pm->pm_class = PMC_CLASS_IAF; 608 } else { 609 pm->pm_class = PMC_CLASS_IAP; 610 pm->pm_caps |= PMC_CAP_QUALIFIER; 611 } 612 iap->pm_iap_config |= IAP_EVSEL(ped->ped_event); 613 if (ped->ped_umask > 0) 614 iap->pm_iap_config |= IAP_UMASK(ped->ped_umask); 615 iap->pm_iap_config |= IAP_CMASK(ped->ped_cmask); 616 iap->pm_iap_rsp = ped->ped_offcore_rsp; 617 618 if ((pm->pm_caps & (PMC_CAP_USER|PMC_CAP_SYSTEM)) == 0 || 619 (pm->pm_caps & (PMC_CAP_USER|PMC_CAP_SYSTEM)) == 620 (PMC_CAP_USER|PMC_CAP_SYSTEM)) 621 iap->pm_iap_config |= (IAP_USR | IAP_OS); 622 else if (pm->pm_caps & PMC_CAP_USER) 623 iap->pm_iap_config |= IAP_USR; 624 else if (pm->pm_caps & PMC_CAP_SYSTEM) 625 iap->pm_iap_config |= IAP_OS; 626 if (ped->ped_edge) 627 iap->pm_iap_config |= IAP_EDGE; 628 if (ped->ped_any) 629 iap->pm_iap_config |= IAP_ANY; 630 if (ped->ped_inv) 631 iap->pm_iap_config |= IAP_INV; 632 if (pm->pm_caps & PMC_CAP_INTERRUPT) 633 iap->pm_iap_config |= IAP_INT; 634 return (0); 635 } 636 637 static int 638 pmc_pmu_pmcallocate_md(const char *event_name, struct pmc_op_pmcallocate *pm) 639 { 640 const struct pmu_event *pe; 641 struct pmu_event_desc ped; 642 pmu_mfr_t mfr; 643 int idx = -1; 644 645 if ((mfr = pmu_events_mfr()) == PMU_INVALID) 646 return (ENOENT); 647 648 bzero(&pm->pm_md, sizeof(pm->pm_md)); 649 pm->pm_caps |= (PMC_CAP_READ | PMC_CAP_WRITE); 650 event_name = pmu_alias_get(event_name); 651 if ((pe = pmu_event_get(NULL, event_name, &idx)) == NULL) 652 return (ENOENT); 653 assert(idx >= 0); 654 pm->pm_ev = idx; 655 656 if (pe->event == NULL) 657 return (ENOENT); 658 if (pmu_parse_event(&ped, pe->event)) 659 return (ENOENT); 660 661 if (mfr == PMU_INTEL) 662 return (pmc_pmu_intel_pmcallocate(event_name, pm, &ped)); 663 else 664 return (pmc_pmu_amd_pmcallocate(event_name, pm, &ped)); 665 } 666 667 #elif defined(__powerpc64__) 668 669 static int 670 pmc_pmu_pmcallocate_md(const char *event_name, struct pmc_op_pmcallocate *pm) 671 { 672 const struct pmu_event *pe; 673 struct pmu_event_desc ped; 674 int idx = -1; 675 676 bzero(&pm->pm_md, sizeof(pm->pm_md)); 677 pm->pm_caps |= (PMC_CAP_READ | PMC_CAP_WRITE); 678 event_name = pmu_alias_get(event_name); 679 680 if ((pe = pmu_event_get(NULL, event_name, &idx)) == NULL) 681 return (ENOENT); 682 if (pe->event == NULL) 683 return (ENOENT); 684 if (pmu_parse_event(&ped, pe->event)) 685 return (ENOENT); 686 687 pm->pm_ev = idx; 688 pm->pm_md.pm_event = ped.ped_event; 689 pm->pm_class = PMC_CLASS_POWER8; 690 return (0); 691 } 692 693 #elif defined(__aarch64__) 694 695 static int 696 pmc_pmu_pmcallocate_md(const char *event_name, struct pmc_op_pmcallocate *pm) 697 { 698 const struct pmu_event *pe; 699 struct pmu_event_desc ped; 700 int idx = -1; 701 702 event_name = pmu_alias_get(event_name); 703 if ((pe = pmu_event_get(NULL, event_name, &idx)) == NULL) 704 return (ENOENT); 705 if (pe->event == NULL) 706 return (ENOENT); 707 if (pmu_parse_event(&ped, pe->event)) 708 return (ENOENT); 709 710 assert(idx >= 0); 711 pm->pm_ev = idx; 712 pm->pm_md.pm_md_config = ped.ped_event; 713 pm->pm_class = PMC_CLASS_ARMV8; 714 pm->pm_caps |= (PMC_CAP_READ | PMC_CAP_WRITE); 715 716 return (0); 717 } 718 719 #else 720 721 static int 722 pmc_pmu_pmcallocate_md(const char *e __unused, struct pmc_op_pmcallocate *p __unused) 723 { 724 return (EOPNOTSUPP); 725 } 726 #endif 727 728 int 729 pmc_pmu_pmcallocate(const char *event_name, struct pmc_op_pmcallocate *pm) 730 { 731 int error; 732 733 error = pmc_pmu_pmcallocate_md(event_name, pm); 734 if (error != 0) { 735 /* Reset any changes. */ 736 pm->pm_ev = 0; 737 pm->pm_caps = 0; 738 pm->pm_class = 0; 739 740 return (error); 741 } 742 743 pm->pm_flags |= PMC_F_EV_PMU; 744 return (0); 745 } 746