1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Netburst Performance Events (P4, old Xeon) 4 */ 5 6 #ifndef PERF_EVENT_P4_H 7 #define PERF_EVENT_P4_H 8 9 #include <linux/cpu.h> 10 #include <linux/bitops.h> 11 12 /* 13 * NetBurst has performance MSRs shared between 14 * threads if HT is turned on, ie for both logical 15 * processors (mem: in turn in Atom with HT support 16 * perf-MSRs are not shared and every thread has its 17 * own perf-MSRs set) 18 */ 19 #define ARCH_P4_TOTAL_ESCR (46) 20 #define ARCH_P4_RESERVED_ESCR (2) /* IQ_ESCR(0,1) not always present */ 21 #define ARCH_P4_MAX_ESCR (ARCH_P4_TOTAL_ESCR - ARCH_P4_RESERVED_ESCR) 22 #define ARCH_P4_MAX_CCCR (18) 23 24 #define ARCH_P4_CNTRVAL_BITS (40) 25 #define ARCH_P4_CNTRVAL_MASK ((1ULL << ARCH_P4_CNTRVAL_BITS) - 1) 26 #define ARCH_P4_UNFLAGGED_BIT ((1ULL) << (ARCH_P4_CNTRVAL_BITS - 1)) 27 28 #define P4_ESCR_EVENT_MASK 0x7e000000ULL 29 #define P4_ESCR_EVENT_SHIFT 25 30 #define P4_ESCR_EVENTMASK_MASK 0x01fffe00ULL 31 #define P4_ESCR_EVENTMASK_SHIFT 9 32 #define P4_ESCR_TAG_MASK 0x000001e0ULL 33 #define P4_ESCR_TAG_SHIFT 5 34 #define P4_ESCR_TAG_ENABLE 0x00000010ULL 35 #define P4_ESCR_T0_OS 0x00000008ULL 36 #define P4_ESCR_T0_USR 0x00000004ULL 37 #define P4_ESCR_T1_OS 0x00000002ULL 38 #define P4_ESCR_T1_USR 0x00000001ULL 39 40 #define P4_ESCR_EVENT(v) ((v) << P4_ESCR_EVENT_SHIFT) 41 #define P4_ESCR_EMASK(v) ((v) << P4_ESCR_EVENTMASK_SHIFT) 42 #define P4_ESCR_TAG(v) ((v) << P4_ESCR_TAG_SHIFT) 43 44 #define P4_CCCR_OVF 0x80000000ULL 45 #define P4_CCCR_CASCADE 0x40000000ULL 46 #define P4_CCCR_OVF_PMI_T0 0x04000000ULL 47 #define P4_CCCR_OVF_PMI_T1 0x08000000ULL 48 #define P4_CCCR_FORCE_OVF 0x02000000ULL 49 #define P4_CCCR_EDGE 0x01000000ULL 50 #define P4_CCCR_THRESHOLD_MASK 0x00f00000ULL 51 #define P4_CCCR_THRESHOLD_SHIFT 20 52 #define P4_CCCR_COMPLEMENT 0x00080000ULL 53 #define P4_CCCR_COMPARE 0x00040000ULL 54 #define P4_CCCR_ESCR_SELECT_MASK 0x0000e000ULL 55 #define P4_CCCR_ESCR_SELECT_SHIFT 13 56 #define P4_CCCR_ENABLE 0x00001000ULL 57 #define P4_CCCR_THREAD_SINGLE 0x00010000ULL 58 #define P4_CCCR_THREAD_BOTH 0x00020000ULL 59 #define P4_CCCR_THREAD_ANY 0x00030000ULL 60 #define P4_CCCR_RESERVED 0x00000fffULL 61 62 #define P4_CCCR_THRESHOLD(v) ((v) << P4_CCCR_THRESHOLD_SHIFT) 63 #define P4_CCCR_ESEL(v) ((v) << P4_CCCR_ESCR_SELECT_SHIFT) 64 65 #define P4_GEN_ESCR_EMASK(class, name, bit) \ 66 class##__##name = ((1ULL << bit) << P4_ESCR_EVENTMASK_SHIFT) 67 #define P4_ESCR_EMASK_BIT(class, name) class##__##name 68 69 /* 70 * config field is 64bit width and consists of 71 * HT << 63 | ESCR << 32 | CCCR 72 * where HT is HyperThreading bit (since ESCR 73 * has it reserved we may use it for own purpose) 74 * 75 * note that this is NOT the addresses of respective 76 * ESCR and CCCR but rather an only packed value should 77 * be unpacked and written to a proper addresses 78 * 79 * the base idea is to pack as much info as possible 80 */ 81 #define p4_config_pack_escr(v) (((u64)(v)) << 32) 82 #define p4_config_pack_cccr(v) (((u64)(v)) & 0xffffffffULL) 83 #define p4_config_unpack_escr(v) (((u64)(v)) >> 32) 84 #define p4_config_unpack_cccr(v) (((u64)(v)) & 0xffffffffULL) 85 86 #define p4_config_unpack_emask(v) \ 87 ({ \ 88 u32 t = p4_config_unpack_escr((v)); \ 89 t = t & P4_ESCR_EVENTMASK_MASK; \ 90 t = t >> P4_ESCR_EVENTMASK_SHIFT; \ 91 t; \ 92 }) 93 94 #define p4_config_unpack_event(v) \ 95 ({ \ 96 u32 t = p4_config_unpack_escr((v)); \ 97 t = t & P4_ESCR_EVENT_MASK; \ 98 t = t >> P4_ESCR_EVENT_SHIFT; \ 99 t; \ 100 }) 101 102 #define P4_CONFIG_HT_SHIFT 63 103 #define P4_CONFIG_HT (1ULL << P4_CONFIG_HT_SHIFT) 104 105 /* 106 * If an event has alias it should be marked 107 * with a special bit. (Don't forget to check 108 * P4_PEBS_CONFIG_MASK and related bits on 109 * modification.) 110 */ 111 #define P4_CONFIG_ALIASABLE (1ULL << 9) 112 113 /* 114 * The bits we allow to pass for RAW events 115 */ 116 #define P4_CONFIG_MASK_ESCR \ 117 P4_ESCR_EVENT_MASK | \ 118 P4_ESCR_EVENTMASK_MASK | \ 119 P4_ESCR_TAG_MASK | \ 120 P4_ESCR_TAG_ENABLE 121 122 #define P4_CONFIG_MASK_CCCR \ 123 P4_CCCR_EDGE | \ 124 P4_CCCR_THRESHOLD_MASK | \ 125 P4_CCCR_COMPLEMENT | \ 126 P4_CCCR_COMPARE | \ 127 P4_CCCR_THREAD_ANY | \ 128 P4_CCCR_RESERVED 129 130 /* some dangerous bits are reserved for kernel internals */ 131 #define P4_CONFIG_MASK \ 132 (p4_config_pack_escr(P4_CONFIG_MASK_ESCR)) | \ 133 (p4_config_pack_cccr(P4_CONFIG_MASK_CCCR)) 134 135 /* 136 * In case of event aliasing we need to preserve some 137 * caller bits, otherwise the mapping won't be complete. 138 */ 139 #define P4_CONFIG_EVENT_ALIAS_MASK \ 140 (p4_config_pack_escr(P4_CONFIG_MASK_ESCR) | \ 141 p4_config_pack_cccr(P4_CCCR_EDGE | \ 142 P4_CCCR_THRESHOLD_MASK | \ 143 P4_CCCR_COMPLEMENT | \ 144 P4_CCCR_COMPARE)) 145 146 #define P4_CONFIG_EVENT_ALIAS_IMMUTABLE_BITS \ 147 ((P4_CONFIG_HT) | \ 148 p4_config_pack_escr(P4_ESCR_T0_OS | \ 149 P4_ESCR_T0_USR | \ 150 P4_ESCR_T1_OS | \ 151 P4_ESCR_T1_USR) | \ 152 p4_config_pack_cccr(P4_CCCR_OVF | \ 153 P4_CCCR_CASCADE | \ 154 P4_CCCR_FORCE_OVF | \ 155 P4_CCCR_THREAD_ANY | \ 156 P4_CCCR_OVF_PMI_T0 | \ 157 P4_CCCR_OVF_PMI_T1 | \ 158 P4_CONFIG_ALIASABLE)) 159 160 static inline bool p4_is_event_cascaded(u64 config) 161 { 162 u32 cccr = p4_config_unpack_cccr(config); 163 return !!(cccr & P4_CCCR_CASCADE); 164 } 165 166 static inline int p4_ht_config_thread(u64 config) 167 { 168 return !!(config & P4_CONFIG_HT); 169 } 170 171 static inline u64 p4_set_ht_bit(u64 config) 172 { 173 return config | P4_CONFIG_HT; 174 } 175 176 static inline u64 p4_clear_ht_bit(u64 config) 177 { 178 return config & ~P4_CONFIG_HT; 179 } 180 181 static inline int p4_ht_active(void) 182 { 183 #ifdef CONFIG_SMP 184 return smp_num_siblings > 1; 185 #endif 186 return 0; 187 } 188 189 static inline int p4_ht_thread(int cpu) 190 { 191 #ifdef CONFIG_SMP 192 if (smp_num_siblings == 2) 193 return cpu != cpumask_first(this_cpu_cpumask_var_ptr(cpu_sibling_map)); 194 #endif 195 return 0; 196 } 197 198 static inline int p4_should_swap_ts(u64 config, int cpu) 199 { 200 return p4_ht_config_thread(config) ^ p4_ht_thread(cpu); 201 } 202 203 static inline u32 p4_default_cccr_conf(int cpu) 204 { 205 /* 206 * Note that P4_CCCR_THREAD_ANY is "required" on 207 * non-HT machines (on HT machines we count TS events 208 * regardless the state of second logical processor 209 */ 210 u32 cccr = P4_CCCR_THREAD_ANY; 211 212 if (!p4_ht_thread(cpu)) 213 cccr |= P4_CCCR_OVF_PMI_T0; 214 else 215 cccr |= P4_CCCR_OVF_PMI_T1; 216 217 return cccr; 218 } 219 220 static inline u32 p4_default_escr_conf(int cpu, int exclude_os, int exclude_usr) 221 { 222 u32 escr = 0; 223 224 if (!p4_ht_thread(cpu)) { 225 if (!exclude_os) 226 escr |= P4_ESCR_T0_OS; 227 if (!exclude_usr) 228 escr |= P4_ESCR_T0_USR; 229 } else { 230 if (!exclude_os) 231 escr |= P4_ESCR_T1_OS; 232 if (!exclude_usr) 233 escr |= P4_ESCR_T1_USR; 234 } 235 236 return escr; 237 } 238 239 /* 240 * This are the events which should be used in "Event Select" 241 * field of ESCR register, they are like unique keys which allow 242 * the kernel to determinate which CCCR and COUNTER should be 243 * used to track an event 244 */ 245 enum P4_EVENTS { 246 P4_EVENT_TC_DELIVER_MODE, 247 P4_EVENT_BPU_FETCH_REQUEST, 248 P4_EVENT_ITLB_REFERENCE, 249 P4_EVENT_MEMORY_CANCEL, 250 P4_EVENT_MEMORY_COMPLETE, 251 P4_EVENT_LOAD_PORT_REPLAY, 252 P4_EVENT_STORE_PORT_REPLAY, 253 P4_EVENT_MOB_LOAD_REPLAY, 254 P4_EVENT_PAGE_WALK_TYPE, 255 P4_EVENT_BSQ_CACHE_REFERENCE, 256 P4_EVENT_IOQ_ALLOCATION, 257 P4_EVENT_IOQ_ACTIVE_ENTRIES, 258 P4_EVENT_FSB_DATA_ACTIVITY, 259 P4_EVENT_BSQ_ALLOCATION, 260 P4_EVENT_BSQ_ACTIVE_ENTRIES, 261 P4_EVENT_SSE_INPUT_ASSIST, 262 P4_EVENT_PACKED_SP_UOP, 263 P4_EVENT_PACKED_DP_UOP, 264 P4_EVENT_SCALAR_SP_UOP, 265 P4_EVENT_SCALAR_DP_UOP, 266 P4_EVENT_64BIT_MMX_UOP, 267 P4_EVENT_128BIT_MMX_UOP, 268 P4_EVENT_X87_FP_UOP, 269 P4_EVENT_TC_MISC, 270 P4_EVENT_GLOBAL_POWER_EVENTS, 271 P4_EVENT_TC_MS_XFER, 272 P4_EVENT_UOP_QUEUE_WRITES, 273 P4_EVENT_RETIRED_MISPRED_BRANCH_TYPE, 274 P4_EVENT_RETIRED_BRANCH_TYPE, 275 P4_EVENT_RESOURCE_STALL, 276 P4_EVENT_WC_BUFFER, 277 P4_EVENT_B2B_CYCLES, 278 P4_EVENT_BNR, 279 P4_EVENT_SNOOP, 280 P4_EVENT_RESPONSE, 281 P4_EVENT_FRONT_END_EVENT, 282 P4_EVENT_EXECUTION_EVENT, 283 P4_EVENT_REPLAY_EVENT, 284 P4_EVENT_INSTR_RETIRED, 285 P4_EVENT_UOPS_RETIRED, 286 P4_EVENT_UOP_TYPE, 287 P4_EVENT_BRANCH_RETIRED, 288 P4_EVENT_MISPRED_BRANCH_RETIRED, 289 P4_EVENT_X87_ASSIST, 290 P4_EVENT_MACHINE_CLEAR, 291 P4_EVENT_INSTR_COMPLETED, 292 }; 293 294 #define P4_OPCODE(event) event##_OPCODE 295 #define P4_OPCODE_ESEL(opcode) ((opcode & 0x00ff) >> 0) 296 #define P4_OPCODE_EVNT(opcode) ((opcode & 0xff00) >> 8) 297 #define P4_OPCODE_PACK(event, sel) (((event) << 8) | sel) 298 299 /* 300 * Comments below the event represent ESCR restriction 301 * for this event and counter index per ESCR 302 * 303 * MSR_P4_IQ_ESCR0 and MSR_P4_IQ_ESCR1 are available only on early 304 * processor builds (family 0FH, models 01H-02H). These MSRs 305 * are not available on later versions, so that we don't use 306 * them completely 307 * 308 * Also note that CCCR1 do not have P4_CCCR_ENABLE bit properly 309 * working so that we should not use this CCCR and respective 310 * counter as result 311 */ 312 enum P4_EVENT_OPCODES { 313 P4_OPCODE(P4_EVENT_TC_DELIVER_MODE) = P4_OPCODE_PACK(0x01, 0x01), 314 /* 315 * MSR_P4_TC_ESCR0: 4, 5 316 * MSR_P4_TC_ESCR1: 6, 7 317 */ 318 319 P4_OPCODE(P4_EVENT_BPU_FETCH_REQUEST) = P4_OPCODE_PACK(0x03, 0x00), 320 /* 321 * MSR_P4_BPU_ESCR0: 0, 1 322 * MSR_P4_BPU_ESCR1: 2, 3 323 */ 324 325 P4_OPCODE(P4_EVENT_ITLB_REFERENCE) = P4_OPCODE_PACK(0x18, 0x03), 326 /* 327 * MSR_P4_ITLB_ESCR0: 0, 1 328 * MSR_P4_ITLB_ESCR1: 2, 3 329 */ 330 331 P4_OPCODE(P4_EVENT_MEMORY_CANCEL) = P4_OPCODE_PACK(0x02, 0x05), 332 /* 333 * MSR_P4_DAC_ESCR0: 8, 9 334 * MSR_P4_DAC_ESCR1: 10, 11 335 */ 336 337 P4_OPCODE(P4_EVENT_MEMORY_COMPLETE) = P4_OPCODE_PACK(0x08, 0x02), 338 /* 339 * MSR_P4_SAAT_ESCR0: 8, 9 340 * MSR_P4_SAAT_ESCR1: 10, 11 341 */ 342 343 P4_OPCODE(P4_EVENT_LOAD_PORT_REPLAY) = P4_OPCODE_PACK(0x04, 0x02), 344 /* 345 * MSR_P4_SAAT_ESCR0: 8, 9 346 * MSR_P4_SAAT_ESCR1: 10, 11 347 */ 348 349 P4_OPCODE(P4_EVENT_STORE_PORT_REPLAY) = P4_OPCODE_PACK(0x05, 0x02), 350 /* 351 * MSR_P4_SAAT_ESCR0: 8, 9 352 * MSR_P4_SAAT_ESCR1: 10, 11 353 */ 354 355 P4_OPCODE(P4_EVENT_MOB_LOAD_REPLAY) = P4_OPCODE_PACK(0x03, 0x02), 356 /* 357 * MSR_P4_MOB_ESCR0: 0, 1 358 * MSR_P4_MOB_ESCR1: 2, 3 359 */ 360 361 P4_OPCODE(P4_EVENT_PAGE_WALK_TYPE) = P4_OPCODE_PACK(0x01, 0x04), 362 /* 363 * MSR_P4_PMH_ESCR0: 0, 1 364 * MSR_P4_PMH_ESCR1: 2, 3 365 */ 366 367 P4_OPCODE(P4_EVENT_BSQ_CACHE_REFERENCE) = P4_OPCODE_PACK(0x0c, 0x07), 368 /* 369 * MSR_P4_BSU_ESCR0: 0, 1 370 * MSR_P4_BSU_ESCR1: 2, 3 371 */ 372 373 P4_OPCODE(P4_EVENT_IOQ_ALLOCATION) = P4_OPCODE_PACK(0x03, 0x06), 374 /* 375 * MSR_P4_FSB_ESCR0: 0, 1 376 * MSR_P4_FSB_ESCR1: 2, 3 377 */ 378 379 P4_OPCODE(P4_EVENT_IOQ_ACTIVE_ENTRIES) = P4_OPCODE_PACK(0x1a, 0x06), 380 /* 381 * MSR_P4_FSB_ESCR1: 2, 3 382 */ 383 384 P4_OPCODE(P4_EVENT_FSB_DATA_ACTIVITY) = P4_OPCODE_PACK(0x17, 0x06), 385 /* 386 * MSR_P4_FSB_ESCR0: 0, 1 387 * MSR_P4_FSB_ESCR1: 2, 3 388 */ 389 390 P4_OPCODE(P4_EVENT_BSQ_ALLOCATION) = P4_OPCODE_PACK(0x05, 0x07), 391 /* 392 * MSR_P4_BSU_ESCR0: 0, 1 393 */ 394 395 P4_OPCODE(P4_EVENT_BSQ_ACTIVE_ENTRIES) = P4_OPCODE_PACK(0x06, 0x07), 396 /* 397 * NOTE: no ESCR name in docs, it's guessed 398 * MSR_P4_BSU_ESCR1: 2, 3 399 */ 400 401 P4_OPCODE(P4_EVENT_SSE_INPUT_ASSIST) = P4_OPCODE_PACK(0x34, 0x01), 402 /* 403 * MSR_P4_FIRM_ESCR0: 8, 9 404 * MSR_P4_FIRM_ESCR1: 10, 11 405 */ 406 407 P4_OPCODE(P4_EVENT_PACKED_SP_UOP) = P4_OPCODE_PACK(0x08, 0x01), 408 /* 409 * MSR_P4_FIRM_ESCR0: 8, 9 410 * MSR_P4_FIRM_ESCR1: 10, 11 411 */ 412 413 P4_OPCODE(P4_EVENT_PACKED_DP_UOP) = P4_OPCODE_PACK(0x0c, 0x01), 414 /* 415 * MSR_P4_FIRM_ESCR0: 8, 9 416 * MSR_P4_FIRM_ESCR1: 10, 11 417 */ 418 419 P4_OPCODE(P4_EVENT_SCALAR_SP_UOP) = P4_OPCODE_PACK(0x0a, 0x01), 420 /* 421 * MSR_P4_FIRM_ESCR0: 8, 9 422 * MSR_P4_FIRM_ESCR1: 10, 11 423 */ 424 425 P4_OPCODE(P4_EVENT_SCALAR_DP_UOP) = P4_OPCODE_PACK(0x0e, 0x01), 426 /* 427 * MSR_P4_FIRM_ESCR0: 8, 9 428 * MSR_P4_FIRM_ESCR1: 10, 11 429 */ 430 431 P4_OPCODE(P4_EVENT_64BIT_MMX_UOP) = P4_OPCODE_PACK(0x02, 0x01), 432 /* 433 * MSR_P4_FIRM_ESCR0: 8, 9 434 * MSR_P4_FIRM_ESCR1: 10, 11 435 */ 436 437 P4_OPCODE(P4_EVENT_128BIT_MMX_UOP) = P4_OPCODE_PACK(0x1a, 0x01), 438 /* 439 * MSR_P4_FIRM_ESCR0: 8, 9 440 * MSR_P4_FIRM_ESCR1: 10, 11 441 */ 442 443 P4_OPCODE(P4_EVENT_X87_FP_UOP) = P4_OPCODE_PACK(0x04, 0x01), 444 /* 445 * MSR_P4_FIRM_ESCR0: 8, 9 446 * MSR_P4_FIRM_ESCR1: 10, 11 447 */ 448 449 P4_OPCODE(P4_EVENT_TC_MISC) = P4_OPCODE_PACK(0x06, 0x01), 450 /* 451 * MSR_P4_TC_ESCR0: 4, 5 452 * MSR_P4_TC_ESCR1: 6, 7 453 */ 454 455 P4_OPCODE(P4_EVENT_GLOBAL_POWER_EVENTS) = P4_OPCODE_PACK(0x13, 0x06), 456 /* 457 * MSR_P4_FSB_ESCR0: 0, 1 458 * MSR_P4_FSB_ESCR1: 2, 3 459 */ 460 461 P4_OPCODE(P4_EVENT_TC_MS_XFER) = P4_OPCODE_PACK(0x05, 0x00), 462 /* 463 * MSR_P4_MS_ESCR0: 4, 5 464 * MSR_P4_MS_ESCR1: 6, 7 465 */ 466 467 P4_OPCODE(P4_EVENT_UOP_QUEUE_WRITES) = P4_OPCODE_PACK(0x09, 0x00), 468 /* 469 * MSR_P4_MS_ESCR0: 4, 5 470 * MSR_P4_MS_ESCR1: 6, 7 471 */ 472 473 P4_OPCODE(P4_EVENT_RETIRED_MISPRED_BRANCH_TYPE) = P4_OPCODE_PACK(0x05, 0x02), 474 /* 475 * MSR_P4_TBPU_ESCR0: 4, 5 476 * MSR_P4_TBPU_ESCR1: 6, 7 477 */ 478 479 P4_OPCODE(P4_EVENT_RETIRED_BRANCH_TYPE) = P4_OPCODE_PACK(0x04, 0x02), 480 /* 481 * MSR_P4_TBPU_ESCR0: 4, 5 482 * MSR_P4_TBPU_ESCR1: 6, 7 483 */ 484 485 P4_OPCODE(P4_EVENT_RESOURCE_STALL) = P4_OPCODE_PACK(0x01, 0x01), 486 /* 487 * MSR_P4_ALF_ESCR0: 12, 13, 16 488 * MSR_P4_ALF_ESCR1: 14, 15, 17 489 */ 490 491 P4_OPCODE(P4_EVENT_WC_BUFFER) = P4_OPCODE_PACK(0x05, 0x05), 492 /* 493 * MSR_P4_DAC_ESCR0: 8, 9 494 * MSR_P4_DAC_ESCR1: 10, 11 495 */ 496 497 P4_OPCODE(P4_EVENT_B2B_CYCLES) = P4_OPCODE_PACK(0x16, 0x03), 498 /* 499 * MSR_P4_FSB_ESCR0: 0, 1 500 * MSR_P4_FSB_ESCR1: 2, 3 501 */ 502 503 P4_OPCODE(P4_EVENT_BNR) = P4_OPCODE_PACK(0x08, 0x03), 504 /* 505 * MSR_P4_FSB_ESCR0: 0, 1 506 * MSR_P4_FSB_ESCR1: 2, 3 507 */ 508 509 P4_OPCODE(P4_EVENT_SNOOP) = P4_OPCODE_PACK(0x06, 0x03), 510 /* 511 * MSR_P4_FSB_ESCR0: 0, 1 512 * MSR_P4_FSB_ESCR1: 2, 3 513 */ 514 515 P4_OPCODE(P4_EVENT_RESPONSE) = P4_OPCODE_PACK(0x04, 0x03), 516 /* 517 * MSR_P4_FSB_ESCR0: 0, 1 518 * MSR_P4_FSB_ESCR1: 2, 3 519 */ 520 521 P4_OPCODE(P4_EVENT_FRONT_END_EVENT) = P4_OPCODE_PACK(0x08, 0x05), 522 /* 523 * MSR_P4_CRU_ESCR2: 12, 13, 16 524 * MSR_P4_CRU_ESCR3: 14, 15, 17 525 */ 526 527 P4_OPCODE(P4_EVENT_EXECUTION_EVENT) = P4_OPCODE_PACK(0x0c, 0x05), 528 /* 529 * MSR_P4_CRU_ESCR2: 12, 13, 16 530 * MSR_P4_CRU_ESCR3: 14, 15, 17 531 */ 532 533 P4_OPCODE(P4_EVENT_REPLAY_EVENT) = P4_OPCODE_PACK(0x09, 0x05), 534 /* 535 * MSR_P4_CRU_ESCR2: 12, 13, 16 536 * MSR_P4_CRU_ESCR3: 14, 15, 17 537 */ 538 539 P4_OPCODE(P4_EVENT_INSTR_RETIRED) = P4_OPCODE_PACK(0x02, 0x04), 540 /* 541 * MSR_P4_CRU_ESCR0: 12, 13, 16 542 * MSR_P4_CRU_ESCR1: 14, 15, 17 543 */ 544 545 P4_OPCODE(P4_EVENT_UOPS_RETIRED) = P4_OPCODE_PACK(0x01, 0x04), 546 /* 547 * MSR_P4_CRU_ESCR0: 12, 13, 16 548 * MSR_P4_CRU_ESCR1: 14, 15, 17 549 */ 550 551 P4_OPCODE(P4_EVENT_UOP_TYPE) = P4_OPCODE_PACK(0x02, 0x02), 552 /* 553 * MSR_P4_RAT_ESCR0: 12, 13, 16 554 * MSR_P4_RAT_ESCR1: 14, 15, 17 555 */ 556 557 P4_OPCODE(P4_EVENT_BRANCH_RETIRED) = P4_OPCODE_PACK(0x06, 0x05), 558 /* 559 * MSR_P4_CRU_ESCR2: 12, 13, 16 560 * MSR_P4_CRU_ESCR3: 14, 15, 17 561 */ 562 563 P4_OPCODE(P4_EVENT_MISPRED_BRANCH_RETIRED) = P4_OPCODE_PACK(0x03, 0x04), 564 /* 565 * MSR_P4_CRU_ESCR0: 12, 13, 16 566 * MSR_P4_CRU_ESCR1: 14, 15, 17 567 */ 568 569 P4_OPCODE(P4_EVENT_X87_ASSIST) = P4_OPCODE_PACK(0x03, 0x05), 570 /* 571 * MSR_P4_CRU_ESCR2: 12, 13, 16 572 * MSR_P4_CRU_ESCR3: 14, 15, 17 573 */ 574 575 P4_OPCODE(P4_EVENT_MACHINE_CLEAR) = P4_OPCODE_PACK(0x02, 0x05), 576 /* 577 * MSR_P4_CRU_ESCR2: 12, 13, 16 578 * MSR_P4_CRU_ESCR3: 14, 15, 17 579 */ 580 581 P4_OPCODE(P4_EVENT_INSTR_COMPLETED) = P4_OPCODE_PACK(0x07, 0x04), 582 /* 583 * MSR_P4_CRU_ESCR0: 12, 13, 16 584 * MSR_P4_CRU_ESCR1: 14, 15, 17 585 */ 586 }; 587 588 /* 589 * a caller should use P4_ESCR_EMASK_NAME helper to 590 * pick the EventMask needed, for example 591 * 592 * P4_ESCR_EMASK_BIT(P4_EVENT_TC_DELIVER_MODE, DD) 593 */ 594 enum P4_ESCR_EMASKS { 595 P4_GEN_ESCR_EMASK(P4_EVENT_TC_DELIVER_MODE, DD, 0), 596 P4_GEN_ESCR_EMASK(P4_EVENT_TC_DELIVER_MODE, DB, 1), 597 P4_GEN_ESCR_EMASK(P4_EVENT_TC_DELIVER_MODE, DI, 2), 598 P4_GEN_ESCR_EMASK(P4_EVENT_TC_DELIVER_MODE, BD, 3), 599 P4_GEN_ESCR_EMASK(P4_EVENT_TC_DELIVER_MODE, BB, 4), 600 P4_GEN_ESCR_EMASK(P4_EVENT_TC_DELIVER_MODE, BI, 5), 601 P4_GEN_ESCR_EMASK(P4_EVENT_TC_DELIVER_MODE, ID, 6), 602 603 P4_GEN_ESCR_EMASK(P4_EVENT_BPU_FETCH_REQUEST, TCMISS, 0), 604 605 P4_GEN_ESCR_EMASK(P4_EVENT_ITLB_REFERENCE, HIT, 0), 606 P4_GEN_ESCR_EMASK(P4_EVENT_ITLB_REFERENCE, MISS, 1), 607 P4_GEN_ESCR_EMASK(P4_EVENT_ITLB_REFERENCE, HIT_UK, 2), 608 609 P4_GEN_ESCR_EMASK(P4_EVENT_MEMORY_CANCEL, ST_RB_FULL, 2), 610 P4_GEN_ESCR_EMASK(P4_EVENT_MEMORY_CANCEL, 64K_CONF, 3), 611 612 P4_GEN_ESCR_EMASK(P4_EVENT_MEMORY_COMPLETE, LSC, 0), 613 P4_GEN_ESCR_EMASK(P4_EVENT_MEMORY_COMPLETE, SSC, 1), 614 615 P4_GEN_ESCR_EMASK(P4_EVENT_LOAD_PORT_REPLAY, SPLIT_LD, 1), 616 617 P4_GEN_ESCR_EMASK(P4_EVENT_STORE_PORT_REPLAY, SPLIT_ST, 1), 618 619 P4_GEN_ESCR_EMASK(P4_EVENT_MOB_LOAD_REPLAY, NO_STA, 1), 620 P4_GEN_ESCR_EMASK(P4_EVENT_MOB_LOAD_REPLAY, NO_STD, 3), 621 P4_GEN_ESCR_EMASK(P4_EVENT_MOB_LOAD_REPLAY, PARTIAL_DATA, 4), 622 P4_GEN_ESCR_EMASK(P4_EVENT_MOB_LOAD_REPLAY, UNALGN_ADDR, 5), 623 624 P4_GEN_ESCR_EMASK(P4_EVENT_PAGE_WALK_TYPE, DTMISS, 0), 625 P4_GEN_ESCR_EMASK(P4_EVENT_PAGE_WALK_TYPE, ITMISS, 1), 626 627 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_CACHE_REFERENCE, RD_2ndL_HITS, 0), 628 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_CACHE_REFERENCE, RD_2ndL_HITE, 1), 629 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_CACHE_REFERENCE, RD_2ndL_HITM, 2), 630 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_CACHE_REFERENCE, RD_3rdL_HITS, 3), 631 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_CACHE_REFERENCE, RD_3rdL_HITE, 4), 632 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_CACHE_REFERENCE, RD_3rdL_HITM, 5), 633 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_CACHE_REFERENCE, RD_2ndL_MISS, 8), 634 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_CACHE_REFERENCE, RD_3rdL_MISS, 9), 635 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_CACHE_REFERENCE, WR_2ndL_MISS, 10), 636 637 P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ALLOCATION, DEFAULT, 0), 638 P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ALLOCATION, ALL_READ, 5), 639 P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ALLOCATION, ALL_WRITE, 6), 640 P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ALLOCATION, MEM_UC, 7), 641 P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ALLOCATION, MEM_WC, 8), 642 P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ALLOCATION, MEM_WT, 9), 643 P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ALLOCATION, MEM_WP, 10), 644 P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ALLOCATION, MEM_WB, 11), 645 P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ALLOCATION, OWN, 13), 646 P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ALLOCATION, OTHER, 14), 647 P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ALLOCATION, PREFETCH, 15), 648 649 P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ACTIVE_ENTRIES, DEFAULT, 0), 650 P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ACTIVE_ENTRIES, ALL_READ, 5), 651 P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ACTIVE_ENTRIES, ALL_WRITE, 6), 652 P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ACTIVE_ENTRIES, MEM_UC, 7), 653 P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ACTIVE_ENTRIES, MEM_WC, 8), 654 P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ACTIVE_ENTRIES, MEM_WT, 9), 655 P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ACTIVE_ENTRIES, MEM_WP, 10), 656 P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ACTIVE_ENTRIES, MEM_WB, 11), 657 P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ACTIVE_ENTRIES, OWN, 13), 658 P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ACTIVE_ENTRIES, OTHER, 14), 659 P4_GEN_ESCR_EMASK(P4_EVENT_IOQ_ACTIVE_ENTRIES, PREFETCH, 15), 660 661 P4_GEN_ESCR_EMASK(P4_EVENT_FSB_DATA_ACTIVITY, DRDY_DRV, 0), 662 P4_GEN_ESCR_EMASK(P4_EVENT_FSB_DATA_ACTIVITY, DRDY_OWN, 1), 663 P4_GEN_ESCR_EMASK(P4_EVENT_FSB_DATA_ACTIVITY, DRDY_OTHER, 2), 664 P4_GEN_ESCR_EMASK(P4_EVENT_FSB_DATA_ACTIVITY, DBSY_DRV, 3), 665 P4_GEN_ESCR_EMASK(P4_EVENT_FSB_DATA_ACTIVITY, DBSY_OWN, 4), 666 P4_GEN_ESCR_EMASK(P4_EVENT_FSB_DATA_ACTIVITY, DBSY_OTHER, 5), 667 668 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, REQ_TYPE0, 0), 669 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, REQ_TYPE1, 1), 670 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, REQ_LEN0, 2), 671 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, REQ_LEN1, 3), 672 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, REQ_IO_TYPE, 5), 673 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, REQ_LOCK_TYPE, 6), 674 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, REQ_CACHE_TYPE, 7), 675 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, REQ_SPLIT_TYPE, 8), 676 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, REQ_DEM_TYPE, 9), 677 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, REQ_ORD_TYPE, 10), 678 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, MEM_TYPE0, 11), 679 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, MEM_TYPE1, 12), 680 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ALLOCATION, MEM_TYPE2, 13), 681 682 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_TYPE0, 0), 683 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_TYPE1, 1), 684 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_LEN0, 2), 685 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_LEN1, 3), 686 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_IO_TYPE, 5), 687 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_LOCK_TYPE, 6), 688 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_CACHE_TYPE, 7), 689 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_SPLIT_TYPE, 8), 690 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_DEM_TYPE, 9), 691 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_ORD_TYPE, 10), 692 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, MEM_TYPE0, 11), 693 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, MEM_TYPE1, 12), 694 P4_GEN_ESCR_EMASK(P4_EVENT_BSQ_ACTIVE_ENTRIES, MEM_TYPE2, 13), 695 696 P4_GEN_ESCR_EMASK(P4_EVENT_SSE_INPUT_ASSIST, ALL, 15), 697 698 P4_GEN_ESCR_EMASK(P4_EVENT_PACKED_SP_UOP, ALL, 15), 699 700 P4_GEN_ESCR_EMASK(P4_EVENT_PACKED_DP_UOP, ALL, 15), 701 702 P4_GEN_ESCR_EMASK(P4_EVENT_SCALAR_SP_UOP, ALL, 15), 703 704 P4_GEN_ESCR_EMASK(P4_EVENT_SCALAR_DP_UOP, ALL, 15), 705 706 P4_GEN_ESCR_EMASK(P4_EVENT_64BIT_MMX_UOP, ALL, 15), 707 708 P4_GEN_ESCR_EMASK(P4_EVENT_128BIT_MMX_UOP, ALL, 15), 709 710 P4_GEN_ESCR_EMASK(P4_EVENT_X87_FP_UOP, ALL, 15), 711 712 P4_GEN_ESCR_EMASK(P4_EVENT_TC_MISC, FLUSH, 4), 713 714 P4_GEN_ESCR_EMASK(P4_EVENT_GLOBAL_POWER_EVENTS, RUNNING, 0), 715 716 P4_GEN_ESCR_EMASK(P4_EVENT_TC_MS_XFER, CISC, 0), 717 718 P4_GEN_ESCR_EMASK(P4_EVENT_UOP_QUEUE_WRITES, FROM_TC_BUILD, 0), 719 P4_GEN_ESCR_EMASK(P4_EVENT_UOP_QUEUE_WRITES, FROM_TC_DELIVER, 1), 720 P4_GEN_ESCR_EMASK(P4_EVENT_UOP_QUEUE_WRITES, FROM_ROM, 2), 721 722 P4_GEN_ESCR_EMASK(P4_EVENT_RETIRED_MISPRED_BRANCH_TYPE, CONDITIONAL, 1), 723 P4_GEN_ESCR_EMASK(P4_EVENT_RETIRED_MISPRED_BRANCH_TYPE, CALL, 2), 724 P4_GEN_ESCR_EMASK(P4_EVENT_RETIRED_MISPRED_BRANCH_TYPE, RETURN, 3), 725 P4_GEN_ESCR_EMASK(P4_EVENT_RETIRED_MISPRED_BRANCH_TYPE, INDIRECT, 4), 726 727 P4_GEN_ESCR_EMASK(P4_EVENT_RETIRED_BRANCH_TYPE, CONDITIONAL, 1), 728 P4_GEN_ESCR_EMASK(P4_EVENT_RETIRED_BRANCH_TYPE, CALL, 2), 729 P4_GEN_ESCR_EMASK(P4_EVENT_RETIRED_BRANCH_TYPE, RETURN, 3), 730 P4_GEN_ESCR_EMASK(P4_EVENT_RETIRED_BRANCH_TYPE, INDIRECT, 4), 731 732 P4_GEN_ESCR_EMASK(P4_EVENT_RESOURCE_STALL, SBFULL, 5), 733 734 P4_GEN_ESCR_EMASK(P4_EVENT_WC_BUFFER, WCB_EVICTS, 0), 735 P4_GEN_ESCR_EMASK(P4_EVENT_WC_BUFFER, WCB_FULL_EVICTS, 1), 736 737 P4_GEN_ESCR_EMASK(P4_EVENT_FRONT_END_EVENT, NBOGUS, 0), 738 P4_GEN_ESCR_EMASK(P4_EVENT_FRONT_END_EVENT, BOGUS, 1), 739 740 P4_GEN_ESCR_EMASK(P4_EVENT_EXECUTION_EVENT, NBOGUS0, 0), 741 P4_GEN_ESCR_EMASK(P4_EVENT_EXECUTION_EVENT, NBOGUS1, 1), 742 P4_GEN_ESCR_EMASK(P4_EVENT_EXECUTION_EVENT, NBOGUS2, 2), 743 P4_GEN_ESCR_EMASK(P4_EVENT_EXECUTION_EVENT, NBOGUS3, 3), 744 P4_GEN_ESCR_EMASK(P4_EVENT_EXECUTION_EVENT, BOGUS0, 4), 745 P4_GEN_ESCR_EMASK(P4_EVENT_EXECUTION_EVENT, BOGUS1, 5), 746 P4_GEN_ESCR_EMASK(P4_EVENT_EXECUTION_EVENT, BOGUS2, 6), 747 P4_GEN_ESCR_EMASK(P4_EVENT_EXECUTION_EVENT, BOGUS3, 7), 748 749 P4_GEN_ESCR_EMASK(P4_EVENT_REPLAY_EVENT, NBOGUS, 0), 750 P4_GEN_ESCR_EMASK(P4_EVENT_REPLAY_EVENT, BOGUS, 1), 751 752 P4_GEN_ESCR_EMASK(P4_EVENT_INSTR_RETIRED, NBOGUSNTAG, 0), 753 P4_GEN_ESCR_EMASK(P4_EVENT_INSTR_RETIRED, NBOGUSTAG, 1), 754 P4_GEN_ESCR_EMASK(P4_EVENT_INSTR_RETIRED, BOGUSNTAG, 2), 755 P4_GEN_ESCR_EMASK(P4_EVENT_INSTR_RETIRED, BOGUSTAG, 3), 756 757 P4_GEN_ESCR_EMASK(P4_EVENT_UOPS_RETIRED, NBOGUS, 0), 758 P4_GEN_ESCR_EMASK(P4_EVENT_UOPS_RETIRED, BOGUS, 1), 759 760 P4_GEN_ESCR_EMASK(P4_EVENT_UOP_TYPE, TAGLOADS, 1), 761 P4_GEN_ESCR_EMASK(P4_EVENT_UOP_TYPE, TAGSTORES, 2), 762 763 P4_GEN_ESCR_EMASK(P4_EVENT_BRANCH_RETIRED, MMNP, 0), 764 P4_GEN_ESCR_EMASK(P4_EVENT_BRANCH_RETIRED, MMNM, 1), 765 P4_GEN_ESCR_EMASK(P4_EVENT_BRANCH_RETIRED, MMTP, 2), 766 P4_GEN_ESCR_EMASK(P4_EVENT_BRANCH_RETIRED, MMTM, 3), 767 768 P4_GEN_ESCR_EMASK(P4_EVENT_MISPRED_BRANCH_RETIRED, NBOGUS, 0), 769 770 P4_GEN_ESCR_EMASK(P4_EVENT_X87_ASSIST, FPSU, 0), 771 P4_GEN_ESCR_EMASK(P4_EVENT_X87_ASSIST, FPSO, 1), 772 P4_GEN_ESCR_EMASK(P4_EVENT_X87_ASSIST, POAO, 2), 773 P4_GEN_ESCR_EMASK(P4_EVENT_X87_ASSIST, POAU, 3), 774 P4_GEN_ESCR_EMASK(P4_EVENT_X87_ASSIST, PREA, 4), 775 776 P4_GEN_ESCR_EMASK(P4_EVENT_MACHINE_CLEAR, CLEAR, 0), 777 P4_GEN_ESCR_EMASK(P4_EVENT_MACHINE_CLEAR, MOCLEAR, 1), 778 P4_GEN_ESCR_EMASK(P4_EVENT_MACHINE_CLEAR, SMCLEAR, 2), 779 780 P4_GEN_ESCR_EMASK(P4_EVENT_INSTR_COMPLETED, NBOGUS, 0), 781 P4_GEN_ESCR_EMASK(P4_EVENT_INSTR_COMPLETED, BOGUS, 1), 782 }; 783 784 /* 785 * Note we have UOP and PEBS bits reserved for now 786 * just in case if we will need them once 787 */ 788 #define P4_PEBS_CONFIG_ENABLE (1ULL << 7) 789 #define P4_PEBS_CONFIG_UOP_TAG (1ULL << 8) 790 #define P4_PEBS_CONFIG_METRIC_MASK 0x3FLL 791 #define P4_PEBS_CONFIG_MASK 0xFFLL 792 793 /* 794 * mem: Only counters MSR_IQ_COUNTER4 (16) and 795 * MSR_IQ_COUNTER5 (17) are allowed for PEBS sampling 796 */ 797 #define P4_PEBS_ENABLE 0x02000000ULL 798 #define P4_PEBS_ENABLE_UOP_TAG 0x01000000ULL 799 800 #define p4_config_unpack_metric(v) (((u64)(v)) & P4_PEBS_CONFIG_METRIC_MASK) 801 #define p4_config_unpack_pebs(v) (((u64)(v)) & P4_PEBS_CONFIG_MASK) 802 803 #define p4_config_pebs_has(v, mask) (p4_config_unpack_pebs(v) & (mask)) 804 805 enum P4_PEBS_METRIC { 806 P4_PEBS_METRIC__none, 807 808 P4_PEBS_METRIC__1stl_cache_load_miss_retired, 809 P4_PEBS_METRIC__2ndl_cache_load_miss_retired, 810 P4_PEBS_METRIC__dtlb_load_miss_retired, 811 P4_PEBS_METRIC__dtlb_store_miss_retired, 812 P4_PEBS_METRIC__dtlb_all_miss_retired, 813 P4_PEBS_METRIC__tagged_mispred_branch, 814 P4_PEBS_METRIC__mob_load_replay_retired, 815 P4_PEBS_METRIC__split_load_retired, 816 P4_PEBS_METRIC__split_store_retired, 817 818 P4_PEBS_METRIC__max 819 }; 820 821 /* 822 * Notes on internal configuration of ESCR+CCCR tuples 823 * 824 * Since P4 has quite the different architecture of 825 * performance registers in compare with "architectural" 826 * once and we have on 64 bits to keep configuration 827 * of performance event, the following trick is used. 828 * 829 * 1) Since both ESCR and CCCR registers have only low 830 * 32 bits valuable, we pack them into a single 64 bit 831 * configuration. Low 32 bits of such config correspond 832 * to low 32 bits of CCCR register and high 32 bits 833 * correspond to low 32 bits of ESCR register. 834 * 835 * 2) The meaning of every bit of such config field can 836 * be found in Intel SDM but it should be noted that 837 * we "borrow" some reserved bits for own usage and 838 * clean them or set to a proper value when we do 839 * a real write to hardware registers. 840 * 841 * 3) The format of bits of config is the following 842 * and should be either 0 or set to some predefined 843 * values: 844 * 845 * Low 32 bits 846 * ----------- 847 * 0-6: P4_PEBS_METRIC enum 848 * 7-11: reserved 849 * 12: reserved (Enable) 850 * 13-15: reserved (ESCR select) 851 * 16-17: Active Thread 852 * 18: Compare 853 * 19: Complement 854 * 20-23: Threshold 855 * 24: Edge 856 * 25: reserved (FORCE_OVF) 857 * 26: reserved (OVF_PMI_T0) 858 * 27: reserved (OVF_PMI_T1) 859 * 28-29: reserved 860 * 30: reserved (Cascade) 861 * 31: reserved (OVF) 862 * 863 * High 32 bits 864 * ------------ 865 * 0: reserved (T1_USR) 866 * 1: reserved (T1_OS) 867 * 2: reserved (T0_USR) 868 * 3: reserved (T0_OS) 869 * 4: Tag Enable 870 * 5-8: Tag Value 871 * 9-24: Event Mask (may use P4_ESCR_EMASK_BIT helper) 872 * 25-30: enum P4_EVENTS 873 * 31: reserved (HT thread) 874 */ 875 876 #endif /* PERF_EVENT_P4_H */ 877 878