lib/libpmc/libpmc_pmu_util.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 2018, Matthew Macy
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25  * SUCH DAMAGE.
  26  *
  27  * $FreeBSD$
  28  *
  29  */
  30
  31 #include <sys/types.h>
  32 #include <sys/errno.h>
  33 #include <sys/sysctl.h>
  34 #include <stddef.h>
  35 #include <stdlib.h>
  36 #include <limits.h>
  37 #include <string.h>
  38 #include <pmc.h>
  39 #include <pmclog.h>
  40 #include <assert.h>
  41 #include <libpmcstat.h>
  42 #include "pmu-events/pmu-events.h"
  43
  44 #if defined(__amd64__) || defined(__i386__)
  45 struct pmu_alias {
  46         const char *pa_alias;
  47         const char *pa_name;
  48 };
  49
  50 typedef enum {
  51         PMU_INVALID,
  52         PMU_INTEL,
  53         PMU_AMD,
  54 } pmu_mfr_t;
  55
  56 static struct pmu_alias pmu_intel_alias_table[] = {
  57         {"UNHALTED_CORE_CYCLES", "CPU_CLK_UNHALTED.THREAD_P_ANY"},
  58         {"UNHALTED-CORE-CYCLES", "CPU_CLK_UNHALTED.THREAD_P_ANY"},
  59         {"LLC_MISSES", "LONGEST_LAT_CACHE.MISS"},
  60         {"LLC-MISSES", "LONGEST_LAT_CACHE.MISS"},
  61         {"LLC_REFERENCE", "LONGEST_LAT_CACHE.REFERENCE"},
  62         {"LLC-REFERENCE", "LONGEST_LAT_CACHE.REFERENCE"},
  63         {"LLC_MISS_RHITM", "mem_load_l3_miss_retired.remote_hitm"},
  64         {"LLC-MISS-RHITM", "mem_load_l3_miss_retired.remote_hitm"},
  65         {"RESOURCE_STALL", "RESOURCE_STALLS.ANY"},
  66         {"RESOURCE_STALLS_ANY", "RESOURCE_STALLS.ANY"},
  67         {"BRANCH_INSTRUCTION_RETIRED", "BR_INST_RETIRED.ALL_BRANCHES"},
  68         {"BRANCH-INSTRUCTION-RETIRED", "BR_INST_RETIRED.ALL_BRANCHES"},
  69         {"BRANCH_MISSES_RETIRED", "BR_MISP_RETIRED.ALL_BRANCHES"},
  70         {"BRANCH-MISSES-RETIRED", "BR_MISP_RETIRED.ALL_BRANCHES"},
  71         {"cycles", "tsc-tsc"},
  72         {"unhalted-cycles", "CPU_CLK_UNHALTED.THREAD_P_ANY"},
  73         {"instructions", "inst-retired.any_p"},
  74         {"branch-mispredicts", "br_misp_retired.all_branches"},
  75         {"branches", "br_inst_retired.all_branches"},
  76         {"interrupts", "hw_interrupts.received"},
  77         {"ic-misses", "frontend_retired.l1i_miss"},
  78         {NULL, NULL},
  79 };
  80
  81 static struct pmu_alias pmu_amd_alias_table[] = {
  82         {"UNHALTED_CORE_CYCLES", "ls_not_halted_cyc"},
  83         {"UNHALTED-CORE-CYCLES", "ls_not_halted_cyc"},
  84         {NULL, NULL},
  85 };
  86
  87
  88 static pmu_mfr_t
  89 pmu_events_mfr(void)
  90 {
  91         char *buf;
  92         size_t s;
  93         pmu_mfr_t mfr;
  94
  95         if (sysctlbyname("kern.hwpmc.cpuid", (void *)NULL, &s,
  96             (void *)NULL, 0) == -1)
  97                 return (PMU_INVALID);
  98         if ((buf = malloc(s + 1)) == NULL)
  99                 return (PMU_INVALID);
 100         if (sysctlbyname("kern.hwpmc.cpuid", buf, &s,
 101                 (void *)NULL, 0) == -1) {
 102                 free(buf);
 103                 return (PMU_INVALID);
 104         }
 105         if (strcasestr(buf, "AuthenticAMD") != NULL)
 106                 mfr = PMU_AMD;
 107         else if (strcasestr(buf, "GenuineIntel") != NULL)
 108                 mfr = PMU_INTEL;
 109         else
 110                 mfr = PMU_INVALID;
 111         free(buf);
 112         return (mfr);
 113 }
 114
 115 /*
 116  *  The Intel fixed mode counters are:
 117  *      "inst_retired.any",
 118  *      "cpu_clk_unhalted.thread",
 119  *      "cpu_clk_unhalted.thread_any",
 120  *      "cpu_clk_unhalted.ref_tsc",
 121  *
 122  */
 123
 124 static const char *
 125 pmu_alias_get(const char *name)
 126 {
 127         pmu_mfr_t mfr;
 128         struct pmu_alias *pa;
 129         struct pmu_alias *pmu_alias_table;
 130
 131         if ((mfr = pmu_events_mfr()) == PMU_INVALID)
 132                 return (name);
 133         if (mfr == PMU_AMD)
 134                 pmu_alias_table = pmu_amd_alias_table;
 135         else if (mfr == PMU_INTEL)
 136                 pmu_alias_table = pmu_intel_alias_table;
 137         else
 138                 return (name);
 139
 140         for (pa = pmu_alias_table; pa->pa_alias != NULL; pa++)
 141                 if (strcasecmp(name, pa->pa_alias) == 0)
 142                         return (pa->pa_name);
 143
 144         return (name);
 145 }
 146
 147 struct pmu_event_desc {
 148         uint64_t ped_period;
 149         uint64_t ped_offcore_rsp;
 150         uint64_t ped_l3_thread;
 151         uint64_t ped_l3_slice;
 152         uint32_t ped_event;
 153         uint32_t ped_frontend;
 154         uint32_t ped_ldlat;
 155         uint32_t ped_config1;
 156         int16_t ped_umask;
 157         uint8_t ped_cmask;
 158         uint8_t ped_any;
 159         uint8_t ped_inv;
 160         uint8_t ped_edge;
 161         uint8_t ped_fc_mask;
 162         uint8_t ped_ch_mask;
 163 };
 164
 165 static const struct pmu_events_map *
 166 pmu_events_map_get(const char *cpuid)
 167 {
 168         size_t s;
 169         char buf[64];
 170         const struct pmu_events_map *pme;
 171
 172         if (cpuid != NULL) {
 173                 memcpy(buf, cpuid, 64);
 174         } else {
 175                 if (sysctlbyname("kern.hwpmc.cpuid", (void *)NULL, &s,
 176                     (void *)NULL, 0) == -1)
 177                         return (NULL);
 178                 if (sysctlbyname("kern.hwpmc.cpuid", buf, &s,
 179                     (void *)NULL, 0) == -1)
 180                         return (NULL);
 181         }
 182         for (pme = pmu_events_map; pme->cpuid != NULL; pme++)
 183                 if (strcmp(buf, pme->cpuid) == 0)
 184                         return (pme);
 185         return (NULL);
 186 }
 187
 188 static const struct pmu_event *
 189 pmu_event_get(const char *cpuid, const char *event_name, int *idx)
 190 {
 191         const struct pmu_events_map *pme;
 192         const struct pmu_event *pe;
 193         int i;
 194
 195         if ((pme = pmu_events_map_get(cpuid)) == NULL)
 196                 return (NULL);
 197         for (i = 0, pe = pme->table; pe->name || pe->desc || pe->event; pe++, i++) {
 198                 if (pe->name == NULL)
 199                         continue;
 200                 if (strcasecmp(pe->name, event_name) == 0) {
 201                         if (idx)
 202                                 *idx = i;
 203                         return (pe);
 204                 }
 205         }
 206         return (NULL);
 207 }
 208
 209 int
 210 pmc_pmu_idx_get_by_event(const char *cpuid, const char *event)
 211 {
 212         int idx;
 213         const char *realname;
 214
 215         realname = pmu_alias_get(event);
 216         if (pmu_event_get(cpuid, realname, &idx) == NULL)
 217                 return (-1);
 218         return (idx);
 219 }
 220
 221 const char *
 222 pmc_pmu_event_get_by_idx(const char *cpuid, int idx)
 223 {
 224         const struct pmu_events_map *pme;
 225
 226         if ((pme = pmu_events_map_get(cpuid)) == NULL)
 227                 return (NULL);
 228         assert(pme->table[idx].name);
 229         return (pme->table[idx].name);
 230 }
 231
 232 static int
 233 pmu_parse_event(struct pmu_event_desc *ped, const char *eventin)
 234 {
 235         char *event;
 236         char *kvp, *key, *value, *r;
 237         char *debug;
 238
 239         if ((event = strdup(eventin)) == NULL)
 240                 return (ENOMEM);
 241         r = event;
 242         bzero(ped, sizeof(*ped));
 243         ped->ped_period = DEFAULT_SAMPLE_COUNT;
 244         ped->ped_umask = -1;
 245         while ((kvp = strsep(&event, ",")) != NULL) {
 246                 key = strsep(&kvp, "=");
 247                 if (key == NULL)
 248                         abort();
 249                 value = kvp;
 250                 if (strcmp(key, "umask") == 0)
 251                         ped->ped_umask = strtol(value, NULL, 16);
 252                 else if (strcmp(key, "event") == 0)
 253                         ped->ped_event = strtol(value, NULL, 16);
 254                 else if (strcmp(key, "period") == 0)
 255                         ped->ped_period = strtol(value, NULL, 10);
 256                 else if (strcmp(key, "offcore_rsp") == 0)
 257                         ped->ped_offcore_rsp = strtol(value, NULL, 16);
 258                 else if (strcmp(key, "any") == 0)
 259                         ped->ped_any = strtol(value, NULL, 10);
 260                 else if (strcmp(key, "cmask") == 0)
 261                         ped->ped_cmask = strtol(value, NULL, 10);
 262                 else if (strcmp(key, "inv") == 0)
 263                         ped->ped_inv = strtol(value, NULL, 10);
 264                 else if (strcmp(key, "edge") == 0)
 265                         ped->ped_edge = strtol(value, NULL, 10);
 266                 else if (strcmp(key, "frontend") == 0)
 267                         ped->ped_frontend = strtol(value, NULL, 16);
 268                 else if (strcmp(key, "ldlat") == 0)
 269                         ped->ped_ldlat = strtol(value, NULL, 16);
 270                 else if (strcmp(key, "fc_mask") == 0)
 271                         ped->ped_fc_mask = strtol(value, NULL, 16);
 272                 else if (strcmp(key, "ch_mask") == 0)
 273                         ped->ped_ch_mask = strtol(value, NULL, 16);
 274                 else if (strcmp(key, "config1") == 0)
 275                         ped->ped_config1 = strtol(value, NULL, 16);
 276                 else if (strcmp(key, "l3_thread_mask") == 0)
 277                         ped->ped_l3_thread = strtol(value, NULL, 16);
 278                 else if (strcmp(key, "l3_slice_mask") == 0)
 279                         ped->ped_l3_slice = strtol(value, NULL, 16);
 280                 else {
 281                         debug = getenv("PMUDEBUG");
 282                         if (debug != NULL && strcmp(debug, "true") == 0 && value != NULL)
 283                                 printf("unrecognized kvpair: %s:%s\n", key, value);
 284                 }
 285         }
 286         free(r);
 287         return (0);
 288 }
 289
 290 uint64_t
 291 pmc_pmu_sample_rate_get(const char *event_name)
 292 {
 293         const struct pmu_event *pe;
 294         struct pmu_event_desc ped;
 295
 296         event_name = pmu_alias_get(event_name);
 297         if ((pe = pmu_event_get(NULL, event_name, NULL)) == NULL)
 298                 return (DEFAULT_SAMPLE_COUNT);
 299         if (pe->alias && (pe = pmu_event_get(NULL, pe->alias, NULL)) == NULL)
 300                 return (DEFAULT_SAMPLE_COUNT);
 301         if (pe->event == NULL)
 302                 return (DEFAULT_SAMPLE_COUNT);
 303         if (pmu_parse_event(&ped, pe->event))
 304                 return (DEFAULT_SAMPLE_COUNT);
 305         return (ped.ped_period);
 306 }
 307
 308 int
 309 pmc_pmu_enabled(void)
 310 {
 311
 312         return (pmu_events_map_get(NULL) != NULL);
 313 }
 314
 315 void
 316 pmc_pmu_print_counters(const char *event_name)
 317 {
 318         const struct pmu_events_map *pme;
 319         const struct pmu_event *pe;
 320         struct pmu_event_desc ped;
 321         char *debug;
 322         int do_debug;
 323
 324         debug = getenv("PMUDEBUG");
 325         do_debug = 0;
 326
 327         if (debug != NULL && strcmp(debug, "true") == 0)
 328                 do_debug = 1;
 329         if ((pme = pmu_events_map_get(NULL)) == NULL)
 330                 return;
 331         for (pe = pme->table; pe->name || pe->desc || pe->event; pe++) {
 332                 if (pe->name == NULL)
 333                         continue;
 334                 if (event_name != NULL && strcasestr(pe->name, event_name) == NULL)
 335                         continue;
 336                 printf("\t%s\n", pe->name);
 337                 if (do_debug)
 338                         pmu_parse_event(&ped, pe->event);
 339         }
 340 }
 341
 342 void
 343 pmc_pmu_print_counter_desc(const char *ev)
 344 {
 345         const struct pmu_events_map *pme;
 346         const struct pmu_event *pe;
 347
 348         if ((pme = pmu_events_map_get(NULL)) == NULL)
 349                 return;
 350         for (pe = pme->table; pe->name || pe->desc || pe->event; pe++) {
 351                 if (pe->name == NULL)
 352                         continue;
 353                 if (strcasestr(pe->name, ev) != NULL &&
 354                     pe->desc != NULL)
 355                         printf("%s:\t%s\n", pe->name, pe->desc);
 356         }
 357 }
 358
 359 void
 360 pmc_pmu_print_counter_desc_long(const char *ev)
 361 {
 362         const struct pmu_events_map *pme;
 363         const struct pmu_event *pe;
 364
 365         if ((pme = pmu_events_map_get(NULL)) == NULL)
 366                 return;
 367         for (pe = pme->table; pe->name || pe->desc || pe->event; pe++) {
 368                 if (pe->name == NULL)
 369                         continue;
 370                 if (strcasestr(pe->name, ev) != NULL) {
 371                         if (pe->long_desc != NULL)
 372                                 printf("%s:\n%s\n", pe->name, pe->long_desc);
 373                         else if (pe->desc != NULL)
 374                                 printf("%s:\t%s\n", pe->name, pe->desc);
 375                 }
 376         }
 377 }
 378
 379 void
 380 pmc_pmu_print_counter_full(const char *ev)
 381 {
 382         const struct pmu_events_map *pme;
 383         const struct pmu_event *pe;
 384
 385         if ((pme = pmu_events_map_get(NULL)) == NULL)
 386                 return;
 387         for (pe = pme->table; pe->name || pe->desc || pe->event; pe++) {
 388                 if (pe->name == NULL)
 389                         continue;
 390                 if (strcasestr(pe->name, ev) == NULL)
 391                         continue;
 392                 printf("name: %s\n", pe->name);
 393                 if (pe->long_desc != NULL)
 394                         printf("desc: %s\n", pe->long_desc);
 395                 else if (pe->desc != NULL)
 396                         printf("desc: %s\n", pe->desc);
 397                 if (pe->event != NULL)
 398                         printf("event: %s\n", pe->event);
 399                 if (pe->topic != NULL)
 400                         printf("topic: %s\n", pe->topic);
 401                 if (pe->pmu != NULL)
 402                         printf("pmu: %s\n", pe->pmu);
 403                 if (pe->unit != NULL)
 404                         printf("unit: %s\n", pe->unit);
 405                 if (pe->perpkg != NULL)
 406                         printf("perpkg: %s\n", pe->perpkg);
 407                 if (pe->metric_expr != NULL)
 408                         printf("metric_expr: %s\n", pe->metric_expr);
 409                 if (pe->metric_name != NULL)
 410                         printf("metric_name: %s\n", pe->metric_name);
 411                 if (pe->metric_group != NULL)
 412                         printf("metric_group: %s\n", pe->metric_group);
 413         }
 414 }
 415
 416 static int
 417 pmc_pmu_amd_pmcallocate(const char *event_name, struct pmc_op_pmcallocate *pm,
 418         struct pmu_event_desc *ped)
 419 {
 420         struct pmc_md_amd_op_pmcallocate *amd;
 421         const struct pmu_event *pe;
 422         int idx = -1;
 423
 424         amd = &pm->pm_md.pm_amd;
 425         if (ped->ped_umask > 0) {
 426                 pm->pm_caps |= PMC_CAP_QUALIFIER;
 427                 amd->pm_amd_config |= AMD_PMC_TO_UNITMASK(ped->ped_umask);
 428         }
 429         pm->pm_class = PMC_CLASS_K8;
 430         pe = pmu_event_get(NULL, event_name, &idx);
 431
 432         if (strcmp("l3cache", pe->topic) == 0){
 433                 amd->pm_amd_config |= AMD_PMC_TO_EVENTMASK(ped->ped_event);
 434                 amd->pm_amd_sub_class = PMC_AMD_SUB_CLASS_L3_CACHE;
 435                 amd->pm_amd_config |= AMD_PMC_TO_L3SLICE(ped->ped_l3_slice);
 436                 amd->pm_amd_config |= AMD_PMC_TO_L3CORE(ped->ped_l3_thread);
 437         }
 438         else if (strcmp("data fabric", pe->topic) == 0){
 439
 440                 amd->pm_amd_config |= AMD_PMC_TO_EVENTMASK_DF(ped->ped_event);
 441                 amd->pm_amd_sub_class = PMC_AMD_SUB_CLASS_DATA_FABRIC;
 442         }
 443         else{
 444                 amd->pm_amd_config |= AMD_PMC_TO_EVENTMASK(ped->ped_event);
 445                 amd->pm_amd_sub_class = PMC_AMD_SUB_CLASS_CORE;
 446                 if ((pm->pm_caps & (PMC_CAP_USER|PMC_CAP_SYSTEM)) == 0 ||
 447                         (pm->pm_caps & (PMC_CAP_USER|PMC_CAP_SYSTEM)) ==
 448                         (PMC_CAP_USER|PMC_CAP_SYSTEM))
 449                         amd->pm_amd_config |= (AMD_PMC_USR | AMD_PMC_OS);
 450                 else if (pm->pm_caps & PMC_CAP_USER)
 451                         amd->pm_amd_config |= AMD_PMC_USR;
 452                 else if (pm->pm_caps & PMC_CAP_SYSTEM)
 453                         amd->pm_amd_config |= AMD_PMC_OS;
 454                 if (ped->ped_edge)
 455                         amd->pm_amd_config |= AMD_PMC_EDGE;
 456                 if (ped->ped_inv)
 457                         amd->pm_amd_config |= AMD_PMC_EDGE;
 458                 if (pm->pm_caps & PMC_CAP_INTERRUPT)
 459                         amd->pm_amd_config |= AMD_PMC_INT;
 460         }
 461         return (0);
 462 }
 463
 464 static int
 465 pmc_pmu_intel_pmcallocate(const char *event_name, struct pmc_op_pmcallocate *pm,
 466         struct pmu_event_desc *ped)
 467 {
 468         struct pmc_md_iap_op_pmcallocate *iap;
 469         int isfixed;
 470
 471         isfixed = 0;
 472         iap = &pm->pm_md.pm_iap;
 473         if (strcasestr(event_name, "UNC_") == event_name ||
 474             strcasestr(event_name, "uncore") != NULL) {
 475                 pm->pm_class = PMC_CLASS_UCP;
 476                 pm->pm_caps |= PMC_CAP_QUALIFIER;
 477         } else if ((ped->ped_umask == -1) ||
 478             (ped->ped_event == 0x0 && ped->ped_umask == 0x3)) {
 479                 pm->pm_class = PMC_CLASS_IAF;
 480         } else {
 481                 pm->pm_class = PMC_CLASS_IAP;
 482                 pm->pm_caps |= PMC_CAP_QUALIFIER;
 483         }
 484         iap->pm_iap_config |= IAP_EVSEL(ped->ped_event);
 485         if (ped->ped_umask > 0)
 486                 iap->pm_iap_config |= IAP_UMASK(ped->ped_umask);
 487         iap->pm_iap_config |= IAP_CMASK(ped->ped_cmask);
 488         iap->pm_iap_rsp = ped->ped_offcore_rsp;
 489
 490         if ((pm->pm_caps & (PMC_CAP_USER|PMC_CAP_SYSTEM)) == 0 ||
 491                 (pm->pm_caps & (PMC_CAP_USER|PMC_CAP_SYSTEM)) ==
 492                 (PMC_CAP_USER|PMC_CAP_SYSTEM))
 493                 iap->pm_iap_config |= (IAP_USR | IAP_OS);
 494         else if (pm->pm_caps & PMC_CAP_USER)
 495                 iap->pm_iap_config |= IAP_USR;
 496         else if (pm->pm_caps & PMC_CAP_SYSTEM)
 497                 iap->pm_iap_config |= IAP_OS;
 498         if (ped->ped_edge)
 499                 iap->pm_iap_config |= IAP_EDGE;
 500         if (ped->ped_any)
 501                 iap->pm_iap_config |= IAP_ANY;
 502         if (ped->ped_inv)
 503                 iap->pm_iap_config |= IAP_EDGE;
 504         if (pm->pm_caps & PMC_CAP_INTERRUPT)
 505                 iap->pm_iap_config |= IAP_INT;
 506         return (0);
 507 }
 508
 509 int
 510 pmc_pmu_pmcallocate(const char *event_name, struct pmc_op_pmcallocate *pm)
 511 {
 512         const struct pmu_event *pe;
 513         struct pmu_event_desc ped;
 514         pmu_mfr_t mfr;
 515         int idx = -1;
 516
 517         if ((mfr = pmu_events_mfr()) == PMU_INVALID)
 518                 return (ENOENT);
 519
 520         bzero(&pm->pm_md, sizeof(pm->pm_md));
 521         pm->pm_caps |= (PMC_CAP_READ | PMC_CAP_WRITE);
 522         event_name = pmu_alias_get(event_name);
 523         if ((pe = pmu_event_get(NULL, event_name, &idx)) == NULL)
 524                 return (ENOENT);
 525         if (pe->alias && (pe = pmu_event_get(NULL, pe->alias, &idx)) == NULL)
 526                 return (ENOENT);
 527         assert(idx >= 0);
 528         pm->pm_ev = idx;
 529
 530         if (pe->event == NULL)
 531                 return (ENOENT);
 532         if (pmu_parse_event(&ped, pe->event))
 533                 return (ENOENT);
 534
 535         if (mfr == PMU_INTEL)
 536                 return (pmc_pmu_intel_pmcallocate(event_name, pm, &ped));
 537         else
 538                 return (pmc_pmu_amd_pmcallocate(event_name, pm, &ped));
 539 }
 540
 541 /*
 542  * Ultimately rely on AMD calling theirs the same
 543  */
 544 static const char *stat_mode_cntrs[] = {
 545         "cpu_clk_unhalted.thread",
 546         "inst_retired.any",
 547         "br_inst_retired.all_branches",
 548         "br_misp_retired.all_branches",
 549         "longest_lat_cache.reference",
 550         "longest_lat_cache.miss",
 551 };
 552
 553 int
 554 pmc_pmu_stat_mode(const char ***cntrs)
 555 {
 556         if (pmc_pmu_enabled()) {
 557                 *cntrs = stat_mode_cntrs;
 558                 return (0);
 559         }
 560         return (EOPNOTSUPP);
 561 }
 562
 563 #else
 564
 565 uint64_t
 566 pmc_pmu_sample_rate_get(const char *event_name __unused)
 567 {
 568         return (DEFAULT_SAMPLE_COUNT);
 569 }
 570
 571 void
 572 pmc_pmu_print_counters(const char *event_name __unused)
 573 {
 574 }
 575
 576 void
 577 pmc_pmu_print_counter_desc(const char *e __unused)
 578 {
 579 }
 580
 581 void
 582 pmc_pmu_print_counter_desc_long(const char *e __unused)
 583 {
 584 }
 585
 586 void
 587 pmc_pmu_print_counter_full(const char *e __unused)
 588 {
 589
 590 }
 591
 592 int
 593 pmc_pmu_enabled(void)
 594 {
 595         return (0);
 596 }
 597
 598 int
 599 pmc_pmu_pmcallocate(const char *e __unused, struct pmc_op_pmcallocate *p __unused)
 600 {
 601         return (EOPNOTSUPP);
 602 }
 603
 604 const char *
 605 pmc_pmu_event_get_by_idx(const char *c __unused, int idx __unused)
 606 {
 607         return (NULL);
 608 }
 609
 610 int
 611 pmc_pmu_stat_mode(const char ***a __unused)
 612 {
 613         return (EOPNOTSUPP);
 614 }
 615
 616 int
 617 pmc_pmu_idx_get_by_event(const char *c __unused, const char *e __unused)
 618 {
 619         return (-1);
 620 }
 621
 622 #endif