1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Performance counter support for POWER10 processors. 4 * 5 * Copyright 2020 Madhavan Srinivasan, IBM Corporation. 6 * Copyright 2020 Athira Rajeev, IBM Corporation. 7 */ 8 9 #define pr_fmt(fmt) "power10-pmu: " fmt 10 11 #include "isa207-common.h" 12 13 /* 14 * Raw event encoding for Power10: 15 * 16 * 60 56 52 48 44 40 36 32 17 * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | 18 * | | [ ] [ src_match ] [ src_mask ] | [ ] [ l2l3_sel ] [ thresh_ctl ] 19 * | | | | | | 20 * | | *- IFM (Linux) | | thresh start/stop -* 21 * | *- BHRB (Linux) | src_sel 22 * *- EBB (Linux) *invert_bit 23 * 24 * 28 24 20 16 12 8 4 0 25 * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | 26 * [ ] [ sample ] [ ] [ ] [ pmc ] [unit ] [ ] | m [ pmcxsel ] 27 * | | | | | | | 28 * | | | | | | *- mark 29 * | | | *- L1/L2/L3 cache_sel | |*-radix_scope_qual 30 * | | sdar_mode | 31 * | *- sampling mode for marked events *- combine 32 * | 33 * *- thresh_sel 34 * 35 * Below uses IBM bit numbering. 36 * 37 * MMCR1[x:y] = unit (PMCxUNIT) 38 * MMCR1[24] = pmc1combine[0] 39 * MMCR1[25] = pmc1combine[1] 40 * MMCR1[26] = pmc2combine[0] 41 * MMCR1[27] = pmc2combine[1] 42 * MMCR1[28] = pmc3combine[0] 43 * MMCR1[29] = pmc3combine[1] 44 * MMCR1[30] = pmc4combine[0] 45 * MMCR1[31] = pmc4combine[1] 46 * 47 * if pmc == 3 and unit == 0 and pmcxsel[0:6] == 0b0101011 48 * MMCR1[20:27] = thresh_ctl 49 * else if pmc == 4 and unit == 0xf and pmcxsel[0:6] == 0b0101001 50 * MMCR1[20:27] = thresh_ctl 51 * else 52 * MMCRA[48:55] = thresh_ctl (THRESH START/END) 53 * 54 * if thresh_sel: 55 * MMCRA[45:47] = thresh_sel 56 * 57 * if l2l3_sel: 58 * MMCR2[56:60] = l2l3_sel[0:4] 59 * 60 * MMCR1[16] = cache_sel[0] 61 * MMCR1[17] = cache_sel[1] 62 * MMCR1[18] = radix_scope_qual 63 * 64 * if mark: 65 * MMCRA[63] = 1 (SAMPLE_ENABLE) 66 * MMCRA[57:59] = sample[0:2] (RAND_SAMP_ELIG) 67 * MMCRA[61:62] = sample[3:4] (RAND_SAMP_MODE) 68 * 69 * if EBB and BHRB: 70 * MMCRA[32:33] = IFM 71 * 72 * MMCRA[SDAR_MODE] = sdar_mode[0:1] 73 */ 74 75 /* 76 * Some power10 event codes. 77 */ 78 #define EVENT(_name, _code) enum{_name = _code} 79 80 #include "power10-events-list.h" 81 82 #undef EVENT 83 84 /* MMCRA IFM bits - POWER10 */ 85 #define POWER10_MMCRA_IFM1 0x0000000040000000UL 86 #define POWER10_MMCRA_IFM2 0x0000000080000000UL 87 #define POWER10_MMCRA_IFM3 0x00000000C0000000UL 88 #define POWER10_MMCRA_BHRB_MASK 0x00000000C0000000UL 89 90 extern u64 PERF_REG_EXTENDED_MASK; 91 92 /* Table of alternatives, sorted by column 0 */ 93 static const unsigned int power10_event_alternatives[][MAX_ALT] = { 94 { PM_CYC_ALT, PM_CYC }, 95 { PM_INST_CMPL_ALT, PM_INST_CMPL }, 96 }; 97 98 static int power10_get_alternatives(u64 event, unsigned int flags, u64 alt[]) 99 { 100 int num_alt = 0; 101 102 num_alt = isa207_get_alternatives(event, alt, 103 ARRAY_SIZE(power10_event_alternatives), flags, 104 power10_event_alternatives); 105 106 return num_alt; 107 } 108 109 static int power10_check_attr_config(struct perf_event *ev) 110 { 111 u64 val; 112 u64 event = ev->attr.config; 113 114 val = (event >> EVENT_SAMPLE_SHIFT) & EVENT_SAMPLE_MASK; 115 if (val == 0x10 || isa3XX_check_attr_config(ev)) 116 return -EINVAL; 117 118 return 0; 119 } 120 121 GENERIC_EVENT_ATTR(cpu-cycles, PM_CYC); 122 GENERIC_EVENT_ATTR(instructions, PM_INST_CMPL); 123 GENERIC_EVENT_ATTR(branch-instructions, PM_BR_CMPL); 124 GENERIC_EVENT_ATTR(branch-misses, PM_BR_MPRED_CMPL); 125 GENERIC_EVENT_ATTR(cache-references, PM_LD_REF_L1); 126 GENERIC_EVENT_ATTR(cache-misses, PM_LD_MISS_L1); 127 GENERIC_EVENT_ATTR(mem-loads, MEM_LOADS); 128 GENERIC_EVENT_ATTR(mem-stores, MEM_STORES); 129 GENERIC_EVENT_ATTR(branch-instructions, PM_BR_FIN); 130 GENERIC_EVENT_ATTR(branch-misses, PM_MPRED_BR_FIN); 131 GENERIC_EVENT_ATTR(cache-misses, PM_LD_DEMAND_MISS_L1_FIN); 132 133 CACHE_EVENT_ATTR(L1-dcache-load-misses, PM_LD_MISS_L1); 134 CACHE_EVENT_ATTR(L1-dcache-loads, PM_LD_REF_L1); 135 CACHE_EVENT_ATTR(L1-dcache-prefetches, PM_LD_PREFETCH_CACHE_LINE_MISS); 136 CACHE_EVENT_ATTR(L1-dcache-store-misses, PM_ST_MISS_L1); 137 CACHE_EVENT_ATTR(L1-icache-load-misses, PM_L1_ICACHE_MISS); 138 CACHE_EVENT_ATTR(L1-icache-loads, PM_INST_FROM_L1); 139 CACHE_EVENT_ATTR(L1-icache-prefetches, PM_IC_PREF_REQ); 140 CACHE_EVENT_ATTR(LLC-load-misses, PM_DATA_FROM_L3MISS); 141 CACHE_EVENT_ATTR(LLC-loads, PM_DATA_FROM_L3); 142 CACHE_EVENT_ATTR(LLC-prefetches, PM_L3_PF_MISS_L3); 143 CACHE_EVENT_ATTR(LLC-store-misses, PM_L2_ST_MISS); 144 CACHE_EVENT_ATTR(LLC-stores, PM_L2_ST); 145 CACHE_EVENT_ATTR(branch-load-misses, PM_BR_MPRED_CMPL); 146 CACHE_EVENT_ATTR(branch-loads, PM_BR_CMPL); 147 CACHE_EVENT_ATTR(dTLB-load-misses, PM_DTLB_MISS); 148 CACHE_EVENT_ATTR(iTLB-load-misses, PM_ITLB_MISS); 149 150 static struct attribute *power10_events_attr_dd1[] = { 151 GENERIC_EVENT_PTR(PM_CYC), 152 GENERIC_EVENT_PTR(PM_INST_CMPL), 153 GENERIC_EVENT_PTR(PM_BR_CMPL), 154 GENERIC_EVENT_PTR(PM_BR_MPRED_CMPL), 155 GENERIC_EVENT_PTR(PM_LD_REF_L1), 156 GENERIC_EVENT_PTR(PM_LD_MISS_L1), 157 GENERIC_EVENT_PTR(MEM_LOADS), 158 GENERIC_EVENT_PTR(MEM_STORES), 159 CACHE_EVENT_PTR(PM_LD_MISS_L1), 160 CACHE_EVENT_PTR(PM_LD_REF_L1), 161 CACHE_EVENT_PTR(PM_LD_PREFETCH_CACHE_LINE_MISS), 162 CACHE_EVENT_PTR(PM_ST_MISS_L1), 163 CACHE_EVENT_PTR(PM_L1_ICACHE_MISS), 164 CACHE_EVENT_PTR(PM_INST_FROM_L1), 165 CACHE_EVENT_PTR(PM_IC_PREF_REQ), 166 CACHE_EVENT_PTR(PM_DATA_FROM_L3MISS), 167 CACHE_EVENT_PTR(PM_DATA_FROM_L3), 168 CACHE_EVENT_PTR(PM_BR_MPRED_CMPL), 169 CACHE_EVENT_PTR(PM_BR_CMPL), 170 CACHE_EVENT_PTR(PM_DTLB_MISS), 171 CACHE_EVENT_PTR(PM_ITLB_MISS), 172 NULL 173 }; 174 175 static struct attribute *power10_events_attr[] = { 176 GENERIC_EVENT_PTR(PM_CYC), 177 GENERIC_EVENT_PTR(PM_INST_CMPL), 178 GENERIC_EVENT_PTR(PM_BR_FIN), 179 GENERIC_EVENT_PTR(PM_MPRED_BR_FIN), 180 GENERIC_EVENT_PTR(PM_LD_REF_L1), 181 GENERIC_EVENT_PTR(PM_LD_DEMAND_MISS_L1_FIN), 182 GENERIC_EVENT_PTR(MEM_LOADS), 183 GENERIC_EVENT_PTR(MEM_STORES), 184 CACHE_EVENT_PTR(PM_LD_MISS_L1), 185 CACHE_EVENT_PTR(PM_LD_REF_L1), 186 CACHE_EVENT_PTR(PM_LD_PREFETCH_CACHE_LINE_MISS), 187 CACHE_EVENT_PTR(PM_ST_MISS_L1), 188 CACHE_EVENT_PTR(PM_L1_ICACHE_MISS), 189 CACHE_EVENT_PTR(PM_INST_FROM_L1), 190 CACHE_EVENT_PTR(PM_IC_PREF_REQ), 191 CACHE_EVENT_PTR(PM_DATA_FROM_L3MISS), 192 CACHE_EVENT_PTR(PM_DATA_FROM_L3), 193 CACHE_EVENT_PTR(PM_L3_PF_MISS_L3), 194 CACHE_EVENT_PTR(PM_L2_ST_MISS), 195 CACHE_EVENT_PTR(PM_L2_ST), 196 CACHE_EVENT_PTR(PM_BR_MPRED_CMPL), 197 CACHE_EVENT_PTR(PM_BR_CMPL), 198 CACHE_EVENT_PTR(PM_DTLB_MISS), 199 CACHE_EVENT_PTR(PM_ITLB_MISS), 200 NULL 201 }; 202 203 static struct attribute_group power10_pmu_events_group_dd1 = { 204 .name = "events", 205 .attrs = power10_events_attr_dd1, 206 }; 207 208 static struct attribute_group power10_pmu_events_group = { 209 .name = "events", 210 .attrs = power10_events_attr, 211 }; 212 213 PMU_FORMAT_ATTR(event, "config:0-59"); 214 PMU_FORMAT_ATTR(pmcxsel, "config:0-7"); 215 PMU_FORMAT_ATTR(mark, "config:8"); 216 PMU_FORMAT_ATTR(combine, "config:10-11"); 217 PMU_FORMAT_ATTR(unit, "config:12-15"); 218 PMU_FORMAT_ATTR(pmc, "config:16-19"); 219 PMU_FORMAT_ATTR(cache_sel, "config:20-21"); 220 PMU_FORMAT_ATTR(sdar_mode, "config:22-23"); 221 PMU_FORMAT_ATTR(sample_mode, "config:24-28"); 222 PMU_FORMAT_ATTR(thresh_sel, "config:29-31"); 223 PMU_FORMAT_ATTR(thresh_stop, "config:32-35"); 224 PMU_FORMAT_ATTR(thresh_start, "config:36-39"); 225 PMU_FORMAT_ATTR(l2l3_sel, "config:40-44"); 226 PMU_FORMAT_ATTR(src_sel, "config:45-46"); 227 PMU_FORMAT_ATTR(invert_bit, "config:47"); 228 PMU_FORMAT_ATTR(src_mask, "config:48-53"); 229 PMU_FORMAT_ATTR(src_match, "config:54-59"); 230 PMU_FORMAT_ATTR(radix_scope, "config:9"); 231 PMU_FORMAT_ATTR(thresh_cmp, "config1:0-17"); 232 233 static struct attribute *power10_pmu_format_attr[] = { 234 &format_attr_event.attr, 235 &format_attr_pmcxsel.attr, 236 &format_attr_mark.attr, 237 &format_attr_combine.attr, 238 &format_attr_unit.attr, 239 &format_attr_pmc.attr, 240 &format_attr_cache_sel.attr, 241 &format_attr_sdar_mode.attr, 242 &format_attr_sample_mode.attr, 243 &format_attr_thresh_sel.attr, 244 &format_attr_thresh_stop.attr, 245 &format_attr_thresh_start.attr, 246 &format_attr_l2l3_sel.attr, 247 &format_attr_src_sel.attr, 248 &format_attr_invert_bit.attr, 249 &format_attr_src_mask.attr, 250 &format_attr_src_match.attr, 251 &format_attr_radix_scope.attr, 252 &format_attr_thresh_cmp.attr, 253 NULL, 254 }; 255 256 static struct attribute_group power10_pmu_format_group = { 257 .name = "format", 258 .attrs = power10_pmu_format_attr, 259 }; 260 261 static const struct attribute_group *power10_pmu_attr_groups_dd1[] = { 262 &power10_pmu_format_group, 263 &power10_pmu_events_group_dd1, 264 NULL, 265 }; 266 267 static const struct attribute_group *power10_pmu_attr_groups[] = { 268 &power10_pmu_format_group, 269 &power10_pmu_events_group, 270 NULL, 271 }; 272 273 static int power10_generic_events_dd1[] = { 274 [PERF_COUNT_HW_CPU_CYCLES] = PM_CYC, 275 [PERF_COUNT_HW_INSTRUCTIONS] = PM_INST_CMPL, 276 [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = PM_BR_CMPL, 277 [PERF_COUNT_HW_BRANCH_MISSES] = PM_BR_MPRED_CMPL, 278 [PERF_COUNT_HW_CACHE_REFERENCES] = PM_LD_REF_L1, 279 [PERF_COUNT_HW_CACHE_MISSES] = PM_LD_MISS_L1, 280 }; 281 282 static int power10_generic_events[] = { 283 [PERF_COUNT_HW_CPU_CYCLES] = PM_CYC, 284 [PERF_COUNT_HW_INSTRUCTIONS] = PM_INST_CMPL, 285 [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = PM_BR_FIN, 286 [PERF_COUNT_HW_BRANCH_MISSES] = PM_MPRED_BR_FIN, 287 [PERF_COUNT_HW_CACHE_REFERENCES] = PM_LD_REF_L1, 288 [PERF_COUNT_HW_CACHE_MISSES] = PM_LD_DEMAND_MISS_L1_FIN, 289 }; 290 291 static u64 power10_bhrb_filter_map(u64 branch_sample_type) 292 { 293 u64 pmu_bhrb_filter = 0; 294 295 /* BHRB and regular PMU events share the same privilege state 296 * filter configuration. BHRB is always recorded along with a 297 * regular PMU event. As the privilege state filter is handled 298 * in the basic PMC configuration of the accompanying regular 299 * PMU event, we ignore any separate BHRB specific request. 300 */ 301 302 /* No branch filter requested */ 303 if (branch_sample_type & PERF_SAMPLE_BRANCH_ANY) 304 return pmu_bhrb_filter; 305 306 /* Invalid branch filter options - HW does not support */ 307 if (branch_sample_type & PERF_SAMPLE_BRANCH_ANY_RETURN) 308 return -1; 309 310 if (branch_sample_type & PERF_SAMPLE_BRANCH_IND_CALL) { 311 pmu_bhrb_filter |= POWER10_MMCRA_IFM2; 312 return pmu_bhrb_filter; 313 } 314 315 if (branch_sample_type & PERF_SAMPLE_BRANCH_COND) { 316 pmu_bhrb_filter |= POWER10_MMCRA_IFM3; 317 return pmu_bhrb_filter; 318 } 319 320 if (branch_sample_type & PERF_SAMPLE_BRANCH_CALL) 321 return -1; 322 323 if (branch_sample_type & PERF_SAMPLE_BRANCH_ANY_CALL) { 324 pmu_bhrb_filter |= POWER10_MMCRA_IFM1; 325 return pmu_bhrb_filter; 326 } 327 328 /* Every thing else is unsupported */ 329 return -1; 330 } 331 332 static void power10_config_bhrb(u64 pmu_bhrb_filter) 333 { 334 pmu_bhrb_filter &= POWER10_MMCRA_BHRB_MASK; 335 336 /* Enable BHRB filter in PMU */ 337 mtspr(SPRN_MMCRA, (mfspr(SPRN_MMCRA) | pmu_bhrb_filter)); 338 } 339 340 #define C(x) PERF_COUNT_HW_CACHE_##x 341 342 /* 343 * Table of generalized cache-related events. 344 * 0 means not supported, -1 means nonsensical, other values 345 * are event codes. 346 */ 347 static u64 power10_cache_events_dd1[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { 348 [C(L1D)] = { 349 [C(OP_READ)] = { 350 [C(RESULT_ACCESS)] = PM_LD_REF_L1, 351 [C(RESULT_MISS)] = PM_LD_MISS_L1, 352 }, 353 [C(OP_WRITE)] = { 354 [C(RESULT_ACCESS)] = 0, 355 [C(RESULT_MISS)] = PM_ST_MISS_L1, 356 }, 357 [C(OP_PREFETCH)] = { 358 [C(RESULT_ACCESS)] = PM_LD_PREFETCH_CACHE_LINE_MISS, 359 [C(RESULT_MISS)] = 0, 360 }, 361 }, 362 [C(L1I)] = { 363 [C(OP_READ)] = { 364 [C(RESULT_ACCESS)] = PM_INST_FROM_L1, 365 [C(RESULT_MISS)] = PM_L1_ICACHE_MISS, 366 }, 367 [C(OP_WRITE)] = { 368 [C(RESULT_ACCESS)] = PM_INST_FROM_L1MISS, 369 [C(RESULT_MISS)] = -1, 370 }, 371 [C(OP_PREFETCH)] = { 372 [C(RESULT_ACCESS)] = PM_IC_PREF_REQ, 373 [C(RESULT_MISS)] = 0, 374 }, 375 }, 376 [C(LL)] = { 377 [C(OP_READ)] = { 378 [C(RESULT_ACCESS)] = PM_DATA_FROM_L3, 379 [C(RESULT_MISS)] = PM_DATA_FROM_L3MISS, 380 }, 381 [C(OP_WRITE)] = { 382 [C(RESULT_ACCESS)] = -1, 383 [C(RESULT_MISS)] = -1, 384 }, 385 [C(OP_PREFETCH)] = { 386 [C(RESULT_ACCESS)] = -1, 387 [C(RESULT_MISS)] = 0, 388 }, 389 }, 390 [C(DTLB)] = { 391 [C(OP_READ)] = { 392 [C(RESULT_ACCESS)] = 0, 393 [C(RESULT_MISS)] = PM_DTLB_MISS, 394 }, 395 [C(OP_WRITE)] = { 396 [C(RESULT_ACCESS)] = -1, 397 [C(RESULT_MISS)] = -1, 398 }, 399 [C(OP_PREFETCH)] = { 400 [C(RESULT_ACCESS)] = -1, 401 [C(RESULT_MISS)] = -1, 402 }, 403 }, 404 [C(ITLB)] = { 405 [C(OP_READ)] = { 406 [C(RESULT_ACCESS)] = 0, 407 [C(RESULT_MISS)] = PM_ITLB_MISS, 408 }, 409 [C(OP_WRITE)] = { 410 [C(RESULT_ACCESS)] = -1, 411 [C(RESULT_MISS)] = -1, 412 }, 413 [C(OP_PREFETCH)] = { 414 [C(RESULT_ACCESS)] = -1, 415 [C(RESULT_MISS)] = -1, 416 }, 417 }, 418 [C(BPU)] = { 419 [C(OP_READ)] = { 420 [C(RESULT_ACCESS)] = PM_BR_CMPL, 421 [C(RESULT_MISS)] = PM_BR_MPRED_CMPL, 422 }, 423 [C(OP_WRITE)] = { 424 [C(RESULT_ACCESS)] = -1, 425 [C(RESULT_MISS)] = -1, 426 }, 427 [C(OP_PREFETCH)] = { 428 [C(RESULT_ACCESS)] = -1, 429 [C(RESULT_MISS)] = -1, 430 }, 431 }, 432 [C(NODE)] = { 433 [C(OP_READ)] = { 434 [C(RESULT_ACCESS)] = -1, 435 [C(RESULT_MISS)] = -1, 436 }, 437 [C(OP_WRITE)] = { 438 [C(RESULT_ACCESS)] = -1, 439 [C(RESULT_MISS)] = -1, 440 }, 441 [C(OP_PREFETCH)] = { 442 [C(RESULT_ACCESS)] = -1, 443 [C(RESULT_MISS)] = -1, 444 }, 445 }, 446 }; 447 448 static u64 power10_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { 449 [C(L1D)] = { 450 [C(OP_READ)] = { 451 [C(RESULT_ACCESS)] = PM_LD_REF_L1, 452 [C(RESULT_MISS)] = PM_LD_MISS_L1, 453 }, 454 [C(OP_WRITE)] = { 455 [C(RESULT_ACCESS)] = 0, 456 [C(RESULT_MISS)] = PM_ST_MISS_L1, 457 }, 458 [C(OP_PREFETCH)] = { 459 [C(RESULT_ACCESS)] = PM_LD_PREFETCH_CACHE_LINE_MISS, 460 [C(RESULT_MISS)] = 0, 461 }, 462 }, 463 [C(L1I)] = { 464 [C(OP_READ)] = { 465 [C(RESULT_ACCESS)] = PM_INST_FROM_L1, 466 [C(RESULT_MISS)] = PM_L1_ICACHE_MISS, 467 }, 468 [C(OP_WRITE)] = { 469 [C(RESULT_ACCESS)] = PM_INST_FROM_L1MISS, 470 [C(RESULT_MISS)] = -1, 471 }, 472 [C(OP_PREFETCH)] = { 473 [C(RESULT_ACCESS)] = PM_IC_PREF_REQ, 474 [C(RESULT_MISS)] = 0, 475 }, 476 }, 477 [C(LL)] = { 478 [C(OP_READ)] = { 479 [C(RESULT_ACCESS)] = PM_DATA_FROM_L3, 480 [C(RESULT_MISS)] = PM_DATA_FROM_L3MISS, 481 }, 482 [C(OP_WRITE)] = { 483 [C(RESULT_ACCESS)] = PM_L2_ST, 484 [C(RESULT_MISS)] = PM_L2_ST_MISS, 485 }, 486 [C(OP_PREFETCH)] = { 487 [C(RESULT_ACCESS)] = PM_L3_PF_MISS_L3, 488 [C(RESULT_MISS)] = 0, 489 }, 490 }, 491 [C(DTLB)] = { 492 [C(OP_READ)] = { 493 [C(RESULT_ACCESS)] = 0, 494 [C(RESULT_MISS)] = PM_DTLB_MISS, 495 }, 496 [C(OP_WRITE)] = { 497 [C(RESULT_ACCESS)] = -1, 498 [C(RESULT_MISS)] = -1, 499 }, 500 [C(OP_PREFETCH)] = { 501 [C(RESULT_ACCESS)] = -1, 502 [C(RESULT_MISS)] = -1, 503 }, 504 }, 505 [C(ITLB)] = { 506 [C(OP_READ)] = { 507 [C(RESULT_ACCESS)] = 0, 508 [C(RESULT_MISS)] = PM_ITLB_MISS, 509 }, 510 [C(OP_WRITE)] = { 511 [C(RESULT_ACCESS)] = -1, 512 [C(RESULT_MISS)] = -1, 513 }, 514 [C(OP_PREFETCH)] = { 515 [C(RESULT_ACCESS)] = -1, 516 [C(RESULT_MISS)] = -1, 517 }, 518 }, 519 [C(BPU)] = { 520 [C(OP_READ)] = { 521 [C(RESULT_ACCESS)] = PM_BR_CMPL, 522 [C(RESULT_MISS)] = PM_BR_MPRED_CMPL, 523 }, 524 [C(OP_WRITE)] = { 525 [C(RESULT_ACCESS)] = -1, 526 [C(RESULT_MISS)] = -1, 527 }, 528 [C(OP_PREFETCH)] = { 529 [C(RESULT_ACCESS)] = -1, 530 [C(RESULT_MISS)] = -1, 531 }, 532 }, 533 [C(NODE)] = { 534 [C(OP_READ)] = { 535 [C(RESULT_ACCESS)] = -1, 536 [C(RESULT_MISS)] = -1, 537 }, 538 [C(OP_WRITE)] = { 539 [C(RESULT_ACCESS)] = -1, 540 [C(RESULT_MISS)] = -1, 541 }, 542 [C(OP_PREFETCH)] = { 543 [C(RESULT_ACCESS)] = -1, 544 [C(RESULT_MISS)] = -1, 545 }, 546 }, 547 }; 548 549 #undef C 550 551 /* 552 * Set the MMCR0[CC56RUN] bit to enable counting for 553 * PMC5 and PMC6 regardless of the state of CTRL[RUN], 554 * so that we can use counters 5 and 6 as PM_INST_CMPL and 555 * PM_CYC. 556 */ 557 static int power10_compute_mmcr(u64 event[], int n_ev, 558 unsigned int hwc[], struct mmcr_regs *mmcr, 559 struct perf_event *pevents[], u32 flags) 560 { 561 int ret; 562 563 ret = isa207_compute_mmcr(event, n_ev, hwc, mmcr, pevents, flags); 564 if (!ret) 565 mmcr->mmcr0 |= MMCR0_C56RUN; 566 return ret; 567 } 568 569 static struct power_pmu power10_pmu = { 570 .name = "POWER10", 571 .n_counter = MAX_PMU_COUNTERS, 572 .add_fields = ISA207_ADD_FIELDS, 573 .test_adder = ISA207_TEST_ADDER, 574 .group_constraint_mask = CNST_CACHE_PMC4_MASK, 575 .group_constraint_val = CNST_CACHE_PMC4_VAL, 576 .compute_mmcr = power10_compute_mmcr, 577 .config_bhrb = power10_config_bhrb, 578 .bhrb_filter_map = power10_bhrb_filter_map, 579 .get_constraint = isa207_get_constraint, 580 .get_alternatives = power10_get_alternatives, 581 .get_mem_data_src = isa207_get_mem_data_src, 582 .get_mem_weight = isa207_get_mem_weight, 583 .disable_pmc = isa207_disable_pmc, 584 .flags = PPMU_HAS_SIER | PPMU_ARCH_207S | 585 PPMU_ARCH_31 | PPMU_HAS_ATTR_CONFIG1, 586 .n_generic = ARRAY_SIZE(power10_generic_events), 587 .generic_events = power10_generic_events, 588 .cache_events = &power10_cache_events, 589 .attr_groups = power10_pmu_attr_groups, 590 .bhrb_nr = 32, 591 .capabilities = PERF_PMU_CAP_EXTENDED_REGS, 592 .check_attr_config = power10_check_attr_config, 593 }; 594 595 int __init init_power10_pmu(void) 596 { 597 unsigned int pvr; 598 int rc; 599 600 /* Comes from cpu_specs[] */ 601 if (!cur_cpu_spec->oprofile_cpu_type || 602 strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power10")) 603 return -ENODEV; 604 605 pvr = mfspr(SPRN_PVR); 606 /* Add the ppmu flag for power10 DD1 */ 607 if ((PVR_CFG(pvr) == 1)) 608 power10_pmu.flags |= PPMU_P10_DD1; 609 610 /* Set the PERF_REG_EXTENDED_MASK here */ 611 PERF_REG_EXTENDED_MASK = PERF_REG_PMU_MASK_31; 612 613 if ((PVR_CFG(pvr) == 1)) { 614 power10_pmu.generic_events = power10_generic_events_dd1; 615 power10_pmu.attr_groups = power10_pmu_attr_groups_dd1; 616 power10_pmu.cache_events = &power10_cache_events_dd1; 617 } 618 619 rc = register_power_pmu(&power10_pmu); 620 if (rc) 621 return rc; 622 623 /* Tell userspace that EBB is supported */ 624 cur_cpu_spec->cpu_user_features2 |= PPC_FEATURE2_EBB; 625 626 return 0; 627 } 628