1 // SPDX-License-Identifier: GPL-2.0 OR MIT 2 /* 3 * Copyright 2015-2022 Advanced Micro Devices, Inc. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be included in 13 * all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 21 * OTHER DEALINGS IN THE SOFTWARE. 22 */ 23 24 #include <linux/pci.h> 25 #include <linux/acpi.h> 26 #include "kfd_crat.h" 27 #include "kfd_priv.h" 28 #include "kfd_topology.h" 29 #include "amdgpu.h" 30 #include "amdgpu_amdkfd.h" 31 32 /* GPU Processor ID base for dGPUs for which VCRAT needs to be created. 33 * GPU processor ID are expressed with Bit[31]=1. 34 * The base is set to 0x8000_0000 + 0x1000 to avoid collision with GPU IDs 35 * used in the CRAT. 36 */ 37 static uint32_t gpu_processor_id_low = 0x80001000; 38 39 /* Return the next available gpu_processor_id and increment it for next GPU 40 * @total_cu_count - Total CUs present in the GPU including ones 41 * masked off 42 */ 43 static inline unsigned int get_and_inc_gpu_processor_id( 44 unsigned int total_cu_count) 45 { 46 int current_id = gpu_processor_id_low; 47 48 gpu_processor_id_low += total_cu_count; 49 return current_id; 50 } 51 52 53 static struct kfd_gpu_cache_info kaveri_cache_info[] = { 54 { 55 /* TCP L1 Cache per CU */ 56 .cache_size = 16, 57 .cache_level = 1, 58 .cache_line_size = 64, 59 .flags = (CRAT_CACHE_FLAGS_ENABLED | 60 CRAT_CACHE_FLAGS_DATA_CACHE | 61 CRAT_CACHE_FLAGS_SIMD_CACHE), 62 .num_cu_shared = 1, 63 }, 64 { 65 /* Scalar L1 Instruction Cache (in SQC module) per bank */ 66 .cache_size = 16, 67 .cache_level = 1, 68 .cache_line_size = 64, 69 .flags = (CRAT_CACHE_FLAGS_ENABLED | 70 CRAT_CACHE_FLAGS_INST_CACHE | 71 CRAT_CACHE_FLAGS_SIMD_CACHE), 72 .num_cu_shared = 2, 73 }, 74 { 75 /* Scalar L1 Data Cache (in SQC module) per bank */ 76 .cache_size = 8, 77 .cache_level = 1, 78 .cache_line_size = 64, 79 .flags = (CRAT_CACHE_FLAGS_ENABLED | 80 CRAT_CACHE_FLAGS_DATA_CACHE | 81 CRAT_CACHE_FLAGS_SIMD_CACHE), 82 .num_cu_shared = 2, 83 }, 84 85 /* TODO: Add L2 Cache information */ 86 }; 87 88 89 static struct kfd_gpu_cache_info carrizo_cache_info[] = { 90 { 91 /* TCP L1 Cache per CU */ 92 .cache_size = 16, 93 .cache_level = 1, 94 .cache_line_size = 64, 95 .flags = (CRAT_CACHE_FLAGS_ENABLED | 96 CRAT_CACHE_FLAGS_DATA_CACHE | 97 CRAT_CACHE_FLAGS_SIMD_CACHE), 98 .num_cu_shared = 1, 99 }, 100 { 101 /* Scalar L1 Instruction Cache (in SQC module) per bank */ 102 .cache_size = 32, 103 .cache_level = 1, 104 .cache_line_size = 64, 105 .flags = (CRAT_CACHE_FLAGS_ENABLED | 106 CRAT_CACHE_FLAGS_INST_CACHE | 107 CRAT_CACHE_FLAGS_SIMD_CACHE), 108 .num_cu_shared = 4, 109 }, 110 { 111 /* Scalar L1 Data Cache (in SQC module) per bank. */ 112 .cache_size = 16, 113 .cache_level = 1, 114 .cache_line_size = 64, 115 .flags = (CRAT_CACHE_FLAGS_ENABLED | 116 CRAT_CACHE_FLAGS_DATA_CACHE | 117 CRAT_CACHE_FLAGS_SIMD_CACHE), 118 .num_cu_shared = 4, 119 }, 120 121 /* TODO: Add L2 Cache information */ 122 }; 123 124 #define hawaii_cache_info kaveri_cache_info 125 #define tonga_cache_info carrizo_cache_info 126 #define fiji_cache_info carrizo_cache_info 127 #define polaris10_cache_info carrizo_cache_info 128 #define polaris11_cache_info carrizo_cache_info 129 #define polaris12_cache_info carrizo_cache_info 130 #define vegam_cache_info carrizo_cache_info 131 132 /* NOTE: L1 cache information has been updated and L2/L3 133 * cache information has been added for Vega10 and 134 * newer ASICs. The unit for cache_size is KiB. 135 * In future, check & update cache details 136 * for every new ASIC is required. 137 */ 138 139 static struct kfd_gpu_cache_info vega10_cache_info[] = { 140 { 141 /* TCP L1 Cache per CU */ 142 .cache_size = 16, 143 .cache_level = 1, 144 .cache_line_size = 64, 145 .flags = (CRAT_CACHE_FLAGS_ENABLED | 146 CRAT_CACHE_FLAGS_DATA_CACHE | 147 CRAT_CACHE_FLAGS_SIMD_CACHE), 148 .num_cu_shared = 1, 149 }, 150 { 151 /* Scalar L1 Instruction Cache per SQC */ 152 .cache_size = 32, 153 .cache_level = 1, 154 .cache_line_size = 64, 155 .flags = (CRAT_CACHE_FLAGS_ENABLED | 156 CRAT_CACHE_FLAGS_INST_CACHE | 157 CRAT_CACHE_FLAGS_SIMD_CACHE), 158 .num_cu_shared = 3, 159 }, 160 { 161 /* Scalar L1 Data Cache per SQC */ 162 .cache_size = 16, 163 .cache_level = 1, 164 .cache_line_size = 64, 165 .flags = (CRAT_CACHE_FLAGS_ENABLED | 166 CRAT_CACHE_FLAGS_DATA_CACHE | 167 CRAT_CACHE_FLAGS_SIMD_CACHE), 168 .num_cu_shared = 3, 169 }, 170 { 171 /* L2 Data Cache per GPU (Total Tex Cache) */ 172 .cache_size = 4096, 173 .cache_level = 2, 174 .cache_line_size = 64, 175 .flags = (CRAT_CACHE_FLAGS_ENABLED | 176 CRAT_CACHE_FLAGS_DATA_CACHE | 177 CRAT_CACHE_FLAGS_SIMD_CACHE), 178 .num_cu_shared = 16, 179 }, 180 }; 181 182 static struct kfd_gpu_cache_info raven_cache_info[] = { 183 { 184 /* TCP L1 Cache per CU */ 185 .cache_size = 16, 186 .cache_level = 1, 187 .cache_line_size = 64, 188 .flags = (CRAT_CACHE_FLAGS_ENABLED | 189 CRAT_CACHE_FLAGS_DATA_CACHE | 190 CRAT_CACHE_FLAGS_SIMD_CACHE), 191 .num_cu_shared = 1, 192 }, 193 { 194 /* Scalar L1 Instruction Cache per SQC */ 195 .cache_size = 32, 196 .cache_level = 1, 197 .cache_line_size = 64, 198 .flags = (CRAT_CACHE_FLAGS_ENABLED | 199 CRAT_CACHE_FLAGS_INST_CACHE | 200 CRAT_CACHE_FLAGS_SIMD_CACHE), 201 .num_cu_shared = 3, 202 }, 203 { 204 /* Scalar L1 Data Cache per SQC */ 205 .cache_size = 16, 206 .cache_level = 1, 207 .cache_line_size = 64, 208 .flags = (CRAT_CACHE_FLAGS_ENABLED | 209 CRAT_CACHE_FLAGS_DATA_CACHE | 210 CRAT_CACHE_FLAGS_SIMD_CACHE), 211 .num_cu_shared = 3, 212 }, 213 { 214 /* L2 Data Cache per GPU (Total Tex Cache) */ 215 .cache_size = 1024, 216 .cache_level = 2, 217 .cache_line_size = 64, 218 .flags = (CRAT_CACHE_FLAGS_ENABLED | 219 CRAT_CACHE_FLAGS_DATA_CACHE | 220 CRAT_CACHE_FLAGS_SIMD_CACHE), 221 .num_cu_shared = 11, 222 }, 223 }; 224 225 static struct kfd_gpu_cache_info renoir_cache_info[] = { 226 { 227 /* TCP L1 Cache per CU */ 228 .cache_size = 16, 229 .cache_level = 1, 230 .cache_line_size = 64, 231 .flags = (CRAT_CACHE_FLAGS_ENABLED | 232 CRAT_CACHE_FLAGS_DATA_CACHE | 233 CRAT_CACHE_FLAGS_SIMD_CACHE), 234 .num_cu_shared = 1, 235 }, 236 { 237 /* Scalar L1 Instruction Cache per SQC */ 238 .cache_size = 32, 239 .cache_level = 1, 240 .cache_line_size = 64, 241 .flags = (CRAT_CACHE_FLAGS_ENABLED | 242 CRAT_CACHE_FLAGS_INST_CACHE | 243 CRAT_CACHE_FLAGS_SIMD_CACHE), 244 .num_cu_shared = 3, 245 }, 246 { 247 /* Scalar L1 Data Cache per SQC */ 248 .cache_size = 16, 249 .cache_level = 1, 250 .cache_line_size = 64, 251 .flags = (CRAT_CACHE_FLAGS_ENABLED | 252 CRAT_CACHE_FLAGS_DATA_CACHE | 253 CRAT_CACHE_FLAGS_SIMD_CACHE), 254 .num_cu_shared = 3, 255 }, 256 { 257 /* L2 Data Cache per GPU (Total Tex Cache) */ 258 .cache_size = 1024, 259 .cache_level = 2, 260 .cache_line_size = 64, 261 .flags = (CRAT_CACHE_FLAGS_ENABLED | 262 CRAT_CACHE_FLAGS_DATA_CACHE | 263 CRAT_CACHE_FLAGS_SIMD_CACHE), 264 .num_cu_shared = 8, 265 }, 266 }; 267 268 static struct kfd_gpu_cache_info vega12_cache_info[] = { 269 { 270 /* TCP L1 Cache per CU */ 271 .cache_size = 16, 272 .cache_level = 1, 273 .cache_line_size = 64, 274 .flags = (CRAT_CACHE_FLAGS_ENABLED | 275 CRAT_CACHE_FLAGS_DATA_CACHE | 276 CRAT_CACHE_FLAGS_SIMD_CACHE), 277 .num_cu_shared = 1, 278 }, 279 { 280 /* Scalar L1 Instruction Cache per SQC */ 281 .cache_size = 32, 282 .cache_level = 1, 283 .cache_line_size = 64, 284 .flags = (CRAT_CACHE_FLAGS_ENABLED | 285 CRAT_CACHE_FLAGS_INST_CACHE | 286 CRAT_CACHE_FLAGS_SIMD_CACHE), 287 .num_cu_shared = 3, 288 }, 289 { 290 /* Scalar L1 Data Cache per SQC */ 291 .cache_size = 16, 292 .cache_level = 1, 293 .cache_line_size = 64, 294 .flags = (CRAT_CACHE_FLAGS_ENABLED | 295 CRAT_CACHE_FLAGS_DATA_CACHE | 296 CRAT_CACHE_FLAGS_SIMD_CACHE), 297 .num_cu_shared = 3, 298 }, 299 { 300 /* L2 Data Cache per GPU (Total Tex Cache) */ 301 .cache_size = 2048, 302 .cache_level = 2, 303 .cache_line_size = 64, 304 .flags = (CRAT_CACHE_FLAGS_ENABLED | 305 CRAT_CACHE_FLAGS_DATA_CACHE | 306 CRAT_CACHE_FLAGS_SIMD_CACHE), 307 .num_cu_shared = 5, 308 }, 309 }; 310 311 static struct kfd_gpu_cache_info vega20_cache_info[] = { 312 { 313 /* TCP L1 Cache per CU */ 314 .cache_size = 16, 315 .cache_level = 1, 316 .cache_line_size = 64, 317 .flags = (CRAT_CACHE_FLAGS_ENABLED | 318 CRAT_CACHE_FLAGS_DATA_CACHE | 319 CRAT_CACHE_FLAGS_SIMD_CACHE), 320 .num_cu_shared = 1, 321 }, 322 { 323 /* Scalar L1 Instruction Cache per SQC */ 324 .cache_size = 32, 325 .cache_level = 1, 326 .cache_line_size = 64, 327 .flags = (CRAT_CACHE_FLAGS_ENABLED | 328 CRAT_CACHE_FLAGS_INST_CACHE | 329 CRAT_CACHE_FLAGS_SIMD_CACHE), 330 .num_cu_shared = 3, 331 }, 332 { 333 /* Scalar L1 Data Cache per SQC */ 334 .cache_size = 16, 335 .cache_level = 1, 336 .cache_line_size = 64, 337 .flags = (CRAT_CACHE_FLAGS_ENABLED | 338 CRAT_CACHE_FLAGS_DATA_CACHE | 339 CRAT_CACHE_FLAGS_SIMD_CACHE), 340 .num_cu_shared = 3, 341 }, 342 { 343 /* L2 Data Cache per GPU (Total Tex Cache) */ 344 .cache_size = 8192, 345 .cache_level = 2, 346 .cache_line_size = 64, 347 .flags = (CRAT_CACHE_FLAGS_ENABLED | 348 CRAT_CACHE_FLAGS_DATA_CACHE | 349 CRAT_CACHE_FLAGS_SIMD_CACHE), 350 .num_cu_shared = 16, 351 }, 352 }; 353 354 static struct kfd_gpu_cache_info aldebaran_cache_info[] = { 355 { 356 /* TCP L1 Cache per CU */ 357 .cache_size = 16, 358 .cache_level = 1, 359 .cache_line_size = 64, 360 .flags = (CRAT_CACHE_FLAGS_ENABLED | 361 CRAT_CACHE_FLAGS_DATA_CACHE | 362 CRAT_CACHE_FLAGS_SIMD_CACHE), 363 .num_cu_shared = 1, 364 }, 365 { 366 /* Scalar L1 Instruction Cache per SQC */ 367 .cache_size = 32, 368 .cache_level = 1, 369 .cache_line_size = 64, 370 .flags = (CRAT_CACHE_FLAGS_ENABLED | 371 CRAT_CACHE_FLAGS_INST_CACHE | 372 CRAT_CACHE_FLAGS_SIMD_CACHE), 373 .num_cu_shared = 2, 374 }, 375 { 376 /* Scalar L1 Data Cache per SQC */ 377 .cache_size = 16, 378 .cache_level = 1, 379 .cache_line_size = 64, 380 .flags = (CRAT_CACHE_FLAGS_ENABLED | 381 CRAT_CACHE_FLAGS_DATA_CACHE | 382 CRAT_CACHE_FLAGS_SIMD_CACHE), 383 .num_cu_shared = 2, 384 }, 385 { 386 /* L2 Data Cache per GPU (Total Tex Cache) */ 387 .cache_size = 8192, 388 .cache_level = 2, 389 .cache_line_size = 128, 390 .flags = (CRAT_CACHE_FLAGS_ENABLED | 391 CRAT_CACHE_FLAGS_DATA_CACHE | 392 CRAT_CACHE_FLAGS_SIMD_CACHE), 393 .num_cu_shared = 14, 394 }, 395 }; 396 397 static struct kfd_gpu_cache_info navi10_cache_info[] = { 398 { 399 /* TCP L1 Cache per CU */ 400 .cache_size = 16, 401 .cache_level = 1, 402 .cache_line_size = 128, 403 .flags = (CRAT_CACHE_FLAGS_ENABLED | 404 CRAT_CACHE_FLAGS_DATA_CACHE | 405 CRAT_CACHE_FLAGS_SIMD_CACHE), 406 .num_cu_shared = 1, 407 }, 408 { 409 /* Scalar L1 Instruction Cache per SQC */ 410 .cache_size = 32, 411 .cache_level = 1, 412 .cache_line_size = 64, 413 .flags = (CRAT_CACHE_FLAGS_ENABLED | 414 CRAT_CACHE_FLAGS_INST_CACHE | 415 CRAT_CACHE_FLAGS_SIMD_CACHE), 416 .num_cu_shared = 2, 417 }, 418 { 419 /* Scalar L1 Data Cache per SQC */ 420 .cache_size = 16, 421 .cache_level = 1, 422 .cache_line_size = 64, 423 .flags = (CRAT_CACHE_FLAGS_ENABLED | 424 CRAT_CACHE_FLAGS_DATA_CACHE | 425 CRAT_CACHE_FLAGS_SIMD_CACHE), 426 .num_cu_shared = 2, 427 }, 428 { 429 /* GL1 Data Cache per SA */ 430 .cache_size = 128, 431 .cache_level = 1, 432 .cache_line_size = 128, 433 .flags = (CRAT_CACHE_FLAGS_ENABLED | 434 CRAT_CACHE_FLAGS_DATA_CACHE | 435 CRAT_CACHE_FLAGS_SIMD_CACHE), 436 .num_cu_shared = 10, 437 }, 438 { 439 /* L2 Data Cache per GPU (Total Tex Cache) */ 440 .cache_size = 4096, 441 .cache_level = 2, 442 .cache_line_size = 128, 443 .flags = (CRAT_CACHE_FLAGS_ENABLED | 444 CRAT_CACHE_FLAGS_DATA_CACHE | 445 CRAT_CACHE_FLAGS_SIMD_CACHE), 446 .num_cu_shared = 10, 447 }, 448 }; 449 450 static struct kfd_gpu_cache_info vangogh_cache_info[] = { 451 { 452 /* TCP L1 Cache per CU */ 453 .cache_size = 16, 454 .cache_level = 1, 455 .cache_line_size = 128, 456 .flags = (CRAT_CACHE_FLAGS_ENABLED | 457 CRAT_CACHE_FLAGS_DATA_CACHE | 458 CRAT_CACHE_FLAGS_SIMD_CACHE), 459 .num_cu_shared = 1, 460 }, 461 { 462 /* Scalar L1 Instruction Cache per SQC */ 463 .cache_size = 32, 464 .cache_level = 1, 465 .cache_line_size = 64, 466 .flags = (CRAT_CACHE_FLAGS_ENABLED | 467 CRAT_CACHE_FLAGS_INST_CACHE | 468 CRAT_CACHE_FLAGS_SIMD_CACHE), 469 .num_cu_shared = 2, 470 }, 471 { 472 /* Scalar L1 Data Cache per SQC */ 473 .cache_size = 16, 474 .cache_level = 1, 475 .cache_line_size = 64, 476 .flags = (CRAT_CACHE_FLAGS_ENABLED | 477 CRAT_CACHE_FLAGS_DATA_CACHE | 478 CRAT_CACHE_FLAGS_SIMD_CACHE), 479 .num_cu_shared = 2, 480 }, 481 { 482 /* GL1 Data Cache per SA */ 483 .cache_size = 128, 484 .cache_level = 1, 485 .cache_line_size = 128, 486 .flags = (CRAT_CACHE_FLAGS_ENABLED | 487 CRAT_CACHE_FLAGS_DATA_CACHE | 488 CRAT_CACHE_FLAGS_SIMD_CACHE), 489 .num_cu_shared = 8, 490 }, 491 { 492 /* L2 Data Cache per GPU (Total Tex Cache) */ 493 .cache_size = 1024, 494 .cache_level = 2, 495 .cache_line_size = 128, 496 .flags = (CRAT_CACHE_FLAGS_ENABLED | 497 CRAT_CACHE_FLAGS_DATA_CACHE | 498 CRAT_CACHE_FLAGS_SIMD_CACHE), 499 .num_cu_shared = 8, 500 }, 501 }; 502 503 static struct kfd_gpu_cache_info navi14_cache_info[] = { 504 { 505 /* TCP L1 Cache per CU */ 506 .cache_size = 16, 507 .cache_level = 1, 508 .cache_line_size = 128, 509 .flags = (CRAT_CACHE_FLAGS_ENABLED | 510 CRAT_CACHE_FLAGS_DATA_CACHE | 511 CRAT_CACHE_FLAGS_SIMD_CACHE), 512 .num_cu_shared = 1, 513 }, 514 { 515 /* Scalar L1 Instruction Cache per SQC */ 516 .cache_size = 32, 517 .cache_level = 1, 518 .cache_line_size = 64, 519 .flags = (CRAT_CACHE_FLAGS_ENABLED | 520 CRAT_CACHE_FLAGS_INST_CACHE | 521 CRAT_CACHE_FLAGS_SIMD_CACHE), 522 .num_cu_shared = 2, 523 }, 524 { 525 /* Scalar L1 Data Cache per SQC */ 526 .cache_size = 16, 527 .cache_level = 1, 528 .cache_line_size = 64, 529 .flags = (CRAT_CACHE_FLAGS_ENABLED | 530 CRAT_CACHE_FLAGS_DATA_CACHE | 531 CRAT_CACHE_FLAGS_SIMD_CACHE), 532 .num_cu_shared = 2, 533 }, 534 { 535 /* GL1 Data Cache per SA */ 536 .cache_size = 128, 537 .cache_level = 1, 538 .cache_line_size = 128, 539 .flags = (CRAT_CACHE_FLAGS_ENABLED | 540 CRAT_CACHE_FLAGS_DATA_CACHE | 541 CRAT_CACHE_FLAGS_SIMD_CACHE), 542 .num_cu_shared = 12, 543 }, 544 { 545 /* L2 Data Cache per GPU (Total Tex Cache) */ 546 .cache_size = 2048, 547 .cache_level = 2, 548 .cache_line_size = 128, 549 .flags = (CRAT_CACHE_FLAGS_ENABLED | 550 CRAT_CACHE_FLAGS_DATA_CACHE | 551 CRAT_CACHE_FLAGS_SIMD_CACHE), 552 .num_cu_shared = 12, 553 }, 554 }; 555 556 static struct kfd_gpu_cache_info sienna_cichlid_cache_info[] = { 557 { 558 /* TCP L1 Cache per CU */ 559 .cache_size = 16, 560 .cache_level = 1, 561 .cache_line_size = 128, 562 .flags = (CRAT_CACHE_FLAGS_ENABLED | 563 CRAT_CACHE_FLAGS_DATA_CACHE | 564 CRAT_CACHE_FLAGS_SIMD_CACHE), 565 .num_cu_shared = 1, 566 }, 567 { 568 /* Scalar L1 Instruction Cache per SQC */ 569 .cache_size = 32, 570 .cache_level = 1, 571 .cache_line_size = 64, 572 .flags = (CRAT_CACHE_FLAGS_ENABLED | 573 CRAT_CACHE_FLAGS_INST_CACHE | 574 CRAT_CACHE_FLAGS_SIMD_CACHE), 575 .num_cu_shared = 2, 576 }, 577 { 578 /* Scalar L1 Data Cache per SQC */ 579 .cache_size = 16, 580 .cache_level = 1, 581 .cache_line_size = 64, 582 .flags = (CRAT_CACHE_FLAGS_ENABLED | 583 CRAT_CACHE_FLAGS_DATA_CACHE | 584 CRAT_CACHE_FLAGS_SIMD_CACHE), 585 .num_cu_shared = 2, 586 }, 587 { 588 /* GL1 Data Cache per SA */ 589 .cache_size = 128, 590 .cache_level = 1, 591 .cache_line_size = 128, 592 .flags = (CRAT_CACHE_FLAGS_ENABLED | 593 CRAT_CACHE_FLAGS_DATA_CACHE | 594 CRAT_CACHE_FLAGS_SIMD_CACHE), 595 .num_cu_shared = 10, 596 }, 597 { 598 /* L2 Data Cache per GPU (Total Tex Cache) */ 599 .cache_size = 4096, 600 .cache_level = 2, 601 .cache_line_size = 128, 602 .flags = (CRAT_CACHE_FLAGS_ENABLED | 603 CRAT_CACHE_FLAGS_DATA_CACHE | 604 CRAT_CACHE_FLAGS_SIMD_CACHE), 605 .num_cu_shared = 10, 606 }, 607 { 608 /* L3 Data Cache per GPU */ 609 .cache_size = 128*1024, 610 .cache_level = 3, 611 .cache_line_size = 64, 612 .flags = (CRAT_CACHE_FLAGS_ENABLED | 613 CRAT_CACHE_FLAGS_DATA_CACHE | 614 CRAT_CACHE_FLAGS_SIMD_CACHE), 615 .num_cu_shared = 10, 616 }, 617 }; 618 619 static struct kfd_gpu_cache_info navy_flounder_cache_info[] = { 620 { 621 /* TCP L1 Cache per CU */ 622 .cache_size = 16, 623 .cache_level = 1, 624 .cache_line_size = 128, 625 .flags = (CRAT_CACHE_FLAGS_ENABLED | 626 CRAT_CACHE_FLAGS_DATA_CACHE | 627 CRAT_CACHE_FLAGS_SIMD_CACHE), 628 .num_cu_shared = 1, 629 }, 630 { 631 /* Scalar L1 Instruction Cache per SQC */ 632 .cache_size = 32, 633 .cache_level = 1, 634 .cache_line_size = 64, 635 .flags = (CRAT_CACHE_FLAGS_ENABLED | 636 CRAT_CACHE_FLAGS_INST_CACHE | 637 CRAT_CACHE_FLAGS_SIMD_CACHE), 638 .num_cu_shared = 2, 639 }, 640 { 641 /* Scalar L1 Data Cache per SQC */ 642 .cache_size = 16, 643 .cache_level = 1, 644 .cache_line_size = 64, 645 .flags = (CRAT_CACHE_FLAGS_ENABLED | 646 CRAT_CACHE_FLAGS_DATA_CACHE | 647 CRAT_CACHE_FLAGS_SIMD_CACHE), 648 .num_cu_shared = 2, 649 }, 650 { 651 /* GL1 Data Cache per SA */ 652 .cache_size = 128, 653 .cache_level = 1, 654 .cache_line_size = 128, 655 .flags = (CRAT_CACHE_FLAGS_ENABLED | 656 CRAT_CACHE_FLAGS_DATA_CACHE | 657 CRAT_CACHE_FLAGS_SIMD_CACHE), 658 .num_cu_shared = 10, 659 }, 660 { 661 /* L2 Data Cache per GPU (Total Tex Cache) */ 662 .cache_size = 3072, 663 .cache_level = 2, 664 .cache_line_size = 128, 665 .flags = (CRAT_CACHE_FLAGS_ENABLED | 666 CRAT_CACHE_FLAGS_DATA_CACHE | 667 CRAT_CACHE_FLAGS_SIMD_CACHE), 668 .num_cu_shared = 10, 669 }, 670 { 671 /* L3 Data Cache per GPU */ 672 .cache_size = 96*1024, 673 .cache_level = 3, 674 .cache_line_size = 64, 675 .flags = (CRAT_CACHE_FLAGS_ENABLED | 676 CRAT_CACHE_FLAGS_DATA_CACHE | 677 CRAT_CACHE_FLAGS_SIMD_CACHE), 678 .num_cu_shared = 10, 679 }, 680 }; 681 682 static struct kfd_gpu_cache_info dimgrey_cavefish_cache_info[] = { 683 { 684 /* TCP L1 Cache per CU */ 685 .cache_size = 16, 686 .cache_level = 1, 687 .cache_line_size = 128, 688 .flags = (CRAT_CACHE_FLAGS_ENABLED | 689 CRAT_CACHE_FLAGS_DATA_CACHE | 690 CRAT_CACHE_FLAGS_SIMD_CACHE), 691 .num_cu_shared = 1, 692 }, 693 { 694 /* Scalar L1 Instruction Cache per SQC */ 695 .cache_size = 32, 696 .cache_level = 1, 697 .cache_line_size = 64, 698 .flags = (CRAT_CACHE_FLAGS_ENABLED | 699 CRAT_CACHE_FLAGS_INST_CACHE | 700 CRAT_CACHE_FLAGS_SIMD_CACHE), 701 .num_cu_shared = 2, 702 }, 703 { 704 /* Scalar L1 Data Cache per SQC */ 705 .cache_size = 16, 706 .cache_level = 1, 707 .cache_line_size = 64, 708 .flags = (CRAT_CACHE_FLAGS_ENABLED | 709 CRAT_CACHE_FLAGS_DATA_CACHE | 710 CRAT_CACHE_FLAGS_SIMD_CACHE), 711 .num_cu_shared = 2, 712 }, 713 { 714 /* GL1 Data Cache per SA */ 715 .cache_size = 128, 716 .cache_level = 1, 717 .cache_line_size = 128, 718 .flags = (CRAT_CACHE_FLAGS_ENABLED | 719 CRAT_CACHE_FLAGS_DATA_CACHE | 720 CRAT_CACHE_FLAGS_SIMD_CACHE), 721 .num_cu_shared = 8, 722 }, 723 { 724 /* L2 Data Cache per GPU (Total Tex Cache) */ 725 .cache_size = 2048, 726 .cache_level = 2, 727 .cache_line_size = 128, 728 .flags = (CRAT_CACHE_FLAGS_ENABLED | 729 CRAT_CACHE_FLAGS_DATA_CACHE | 730 CRAT_CACHE_FLAGS_SIMD_CACHE), 731 .num_cu_shared = 8, 732 }, 733 { 734 /* L3 Data Cache per GPU */ 735 .cache_size = 32*1024, 736 .cache_level = 3, 737 .cache_line_size = 64, 738 .flags = (CRAT_CACHE_FLAGS_ENABLED | 739 CRAT_CACHE_FLAGS_DATA_CACHE | 740 CRAT_CACHE_FLAGS_SIMD_CACHE), 741 .num_cu_shared = 8, 742 }, 743 }; 744 745 static struct kfd_gpu_cache_info beige_goby_cache_info[] = { 746 { 747 /* TCP L1 Cache per CU */ 748 .cache_size = 16, 749 .cache_level = 1, 750 .cache_line_size = 128, 751 .flags = (CRAT_CACHE_FLAGS_ENABLED | 752 CRAT_CACHE_FLAGS_DATA_CACHE | 753 CRAT_CACHE_FLAGS_SIMD_CACHE), 754 .num_cu_shared = 1, 755 }, 756 { 757 /* Scalar L1 Instruction Cache per SQC */ 758 .cache_size = 32, 759 .cache_level = 1, 760 .cache_line_size = 64, 761 .flags = (CRAT_CACHE_FLAGS_ENABLED | 762 CRAT_CACHE_FLAGS_INST_CACHE | 763 CRAT_CACHE_FLAGS_SIMD_CACHE), 764 .num_cu_shared = 2, 765 }, 766 { 767 /* Scalar L1 Data Cache per SQC */ 768 .cache_size = 16, 769 .cache_level = 1, 770 .cache_line_size = 64, 771 .flags = (CRAT_CACHE_FLAGS_ENABLED | 772 CRAT_CACHE_FLAGS_DATA_CACHE | 773 CRAT_CACHE_FLAGS_SIMD_CACHE), 774 .num_cu_shared = 2, 775 }, 776 { 777 /* GL1 Data Cache per SA */ 778 .cache_size = 128, 779 .cache_level = 1, 780 .cache_line_size = 128, 781 .flags = (CRAT_CACHE_FLAGS_ENABLED | 782 CRAT_CACHE_FLAGS_DATA_CACHE | 783 CRAT_CACHE_FLAGS_SIMD_CACHE), 784 .num_cu_shared = 8, 785 }, 786 { 787 /* L2 Data Cache per GPU (Total Tex Cache) */ 788 .cache_size = 1024, 789 .cache_level = 2, 790 .cache_line_size = 128, 791 .flags = (CRAT_CACHE_FLAGS_ENABLED | 792 CRAT_CACHE_FLAGS_DATA_CACHE | 793 CRAT_CACHE_FLAGS_SIMD_CACHE), 794 .num_cu_shared = 8, 795 }, 796 { 797 /* L3 Data Cache per GPU */ 798 .cache_size = 16*1024, 799 .cache_level = 3, 800 .cache_line_size = 64, 801 .flags = (CRAT_CACHE_FLAGS_ENABLED | 802 CRAT_CACHE_FLAGS_DATA_CACHE | 803 CRAT_CACHE_FLAGS_SIMD_CACHE), 804 .num_cu_shared = 8, 805 }, 806 }; 807 808 static struct kfd_gpu_cache_info yellow_carp_cache_info[] = { 809 { 810 /* TCP L1 Cache per CU */ 811 .cache_size = 16, 812 .cache_level = 1, 813 .cache_line_size = 128, 814 .flags = (CRAT_CACHE_FLAGS_ENABLED | 815 CRAT_CACHE_FLAGS_DATA_CACHE | 816 CRAT_CACHE_FLAGS_SIMD_CACHE), 817 .num_cu_shared = 1, 818 }, 819 { 820 /* Scalar L1 Instruction Cache per SQC */ 821 .cache_size = 32, 822 .cache_level = 1, 823 .cache_line_size = 64, 824 .flags = (CRAT_CACHE_FLAGS_ENABLED | 825 CRAT_CACHE_FLAGS_INST_CACHE | 826 CRAT_CACHE_FLAGS_SIMD_CACHE), 827 .num_cu_shared = 2, 828 }, 829 { 830 /* Scalar L1 Data Cache per SQC */ 831 .cache_size = 16, 832 .cache_level = 1, 833 .cache_line_size = 64, 834 .flags = (CRAT_CACHE_FLAGS_ENABLED | 835 CRAT_CACHE_FLAGS_DATA_CACHE | 836 CRAT_CACHE_FLAGS_SIMD_CACHE), 837 .num_cu_shared = 2, 838 }, 839 { 840 /* GL1 Data Cache per SA */ 841 .cache_size = 128, 842 .cache_level = 1, 843 .cache_line_size = 128, 844 .flags = (CRAT_CACHE_FLAGS_ENABLED | 845 CRAT_CACHE_FLAGS_DATA_CACHE | 846 CRAT_CACHE_FLAGS_SIMD_CACHE), 847 .num_cu_shared = 6, 848 }, 849 { 850 /* L2 Data Cache per GPU (Total Tex Cache) */ 851 .cache_size = 2048, 852 .cache_level = 2, 853 .cache_line_size = 128, 854 .flags = (CRAT_CACHE_FLAGS_ENABLED | 855 CRAT_CACHE_FLAGS_DATA_CACHE | 856 CRAT_CACHE_FLAGS_SIMD_CACHE), 857 .num_cu_shared = 6, 858 }, 859 }; 860 861 static struct kfd_gpu_cache_info gfx1037_cache_info[] = { 862 { 863 /* TCP L1 Cache per CU */ 864 .cache_size = 16, 865 .cache_level = 1, 866 .cache_line_size = 128, 867 .flags = (CRAT_CACHE_FLAGS_ENABLED | 868 CRAT_CACHE_FLAGS_DATA_CACHE | 869 CRAT_CACHE_FLAGS_SIMD_CACHE), 870 .num_cu_shared = 1, 871 }, 872 { 873 /* Scalar L1 Instruction Cache per SQC */ 874 .cache_size = 32, 875 .cache_level = 1, 876 .cache_line_size = 64, 877 .flags = (CRAT_CACHE_FLAGS_ENABLED | 878 CRAT_CACHE_FLAGS_INST_CACHE | 879 CRAT_CACHE_FLAGS_SIMD_CACHE), 880 .num_cu_shared = 2, 881 }, 882 { 883 /* Scalar L1 Data Cache per SQC */ 884 .cache_size = 16, 885 .cache_level = 1, 886 .cache_line_size = 64, 887 .flags = (CRAT_CACHE_FLAGS_ENABLED | 888 CRAT_CACHE_FLAGS_DATA_CACHE | 889 CRAT_CACHE_FLAGS_SIMD_CACHE), 890 .num_cu_shared = 2, 891 }, 892 { 893 /* GL1 Data Cache per SA */ 894 .cache_size = 128, 895 .cache_level = 1, 896 .cache_line_size = 128, 897 .flags = (CRAT_CACHE_FLAGS_ENABLED | 898 CRAT_CACHE_FLAGS_DATA_CACHE | 899 CRAT_CACHE_FLAGS_SIMD_CACHE), 900 .num_cu_shared = 2, 901 }, 902 { 903 /* L2 Data Cache per GPU (Total Tex Cache) */ 904 .cache_size = 256, 905 .cache_level = 2, 906 .cache_line_size = 128, 907 .flags = (CRAT_CACHE_FLAGS_ENABLED | 908 CRAT_CACHE_FLAGS_DATA_CACHE | 909 CRAT_CACHE_FLAGS_SIMD_CACHE), 910 .num_cu_shared = 2, 911 }, 912 }; 913 914 static struct kfd_gpu_cache_info gc_10_3_6_cache_info[] = { 915 { 916 /* TCP L1 Cache per CU */ 917 .cache_size = 16, 918 .cache_level = 1, 919 .cache_line_size = 128, 920 .flags = (CRAT_CACHE_FLAGS_ENABLED | 921 CRAT_CACHE_FLAGS_DATA_CACHE | 922 CRAT_CACHE_FLAGS_SIMD_CACHE), 923 .num_cu_shared = 1, 924 }, 925 { 926 /* Scalar L1 Instruction Cache per SQC */ 927 .cache_size = 32, 928 .cache_level = 1, 929 .cache_line_size = 64, 930 .flags = (CRAT_CACHE_FLAGS_ENABLED | 931 CRAT_CACHE_FLAGS_INST_CACHE | 932 CRAT_CACHE_FLAGS_SIMD_CACHE), 933 .num_cu_shared = 2, 934 }, 935 { 936 /* Scalar L1 Data Cache per SQC */ 937 .cache_size = 16, 938 .cache_level = 1, 939 .cache_line_size = 64, 940 .flags = (CRAT_CACHE_FLAGS_ENABLED | 941 CRAT_CACHE_FLAGS_DATA_CACHE | 942 CRAT_CACHE_FLAGS_SIMD_CACHE), 943 .num_cu_shared = 2, 944 }, 945 { 946 /* GL1 Data Cache per SA */ 947 .cache_size = 128, 948 .cache_level = 1, 949 .cache_line_size = 128, 950 .flags = (CRAT_CACHE_FLAGS_ENABLED | 951 CRAT_CACHE_FLAGS_DATA_CACHE | 952 CRAT_CACHE_FLAGS_SIMD_CACHE), 953 .num_cu_shared = 2, 954 }, 955 { 956 /* L2 Data Cache per GPU (Total Tex Cache) */ 957 .cache_size = 256, 958 .cache_level = 2, 959 .cache_line_size = 128, 960 .flags = (CRAT_CACHE_FLAGS_ENABLED | 961 CRAT_CACHE_FLAGS_DATA_CACHE | 962 CRAT_CACHE_FLAGS_SIMD_CACHE), 963 .num_cu_shared = 2, 964 }, 965 }; 966 967 static struct kfd_gpu_cache_info dummy_cache_info[] = { 968 { 969 /* TCP L1 Cache per CU */ 970 .cache_size = 16, 971 .cache_level = 1, 972 .cache_line_size = 64, 973 .flags = (CRAT_CACHE_FLAGS_ENABLED | 974 CRAT_CACHE_FLAGS_DATA_CACHE | 975 CRAT_CACHE_FLAGS_SIMD_CACHE), 976 .num_cu_shared = 1, 977 }, 978 { 979 /* Scalar L1 Instruction Cache per SQC */ 980 .cache_size = 32, 981 .cache_level = 1, 982 .cache_line_size = 64, 983 .flags = (CRAT_CACHE_FLAGS_ENABLED | 984 CRAT_CACHE_FLAGS_INST_CACHE | 985 CRAT_CACHE_FLAGS_SIMD_CACHE), 986 .num_cu_shared = 2, 987 }, 988 { 989 /* Scalar L1 Data Cache per SQC */ 990 .cache_size = 16, 991 .cache_level = 1, 992 .cache_line_size = 64, 993 .flags = (CRAT_CACHE_FLAGS_ENABLED | 994 CRAT_CACHE_FLAGS_DATA_CACHE | 995 CRAT_CACHE_FLAGS_SIMD_CACHE), 996 .num_cu_shared = 2, 997 }, 998 { 999 /* GL1 Data Cache per SA */ 1000 .cache_size = 128, 1001 .cache_level = 1, 1002 .cache_line_size = 64, 1003 .flags = (CRAT_CACHE_FLAGS_ENABLED | 1004 CRAT_CACHE_FLAGS_DATA_CACHE | 1005 CRAT_CACHE_FLAGS_SIMD_CACHE), 1006 .num_cu_shared = 6, 1007 }, 1008 { 1009 /* L2 Data Cache per GPU (Total Tex Cache) */ 1010 .cache_size = 2048, 1011 .cache_level = 2, 1012 .cache_line_size = 64, 1013 .flags = (CRAT_CACHE_FLAGS_ENABLED | 1014 CRAT_CACHE_FLAGS_DATA_CACHE | 1015 CRAT_CACHE_FLAGS_SIMD_CACHE), 1016 .num_cu_shared = 6, 1017 }, 1018 }; 1019 1020 static void kfd_populated_cu_info_cpu(struct kfd_topology_device *dev, 1021 struct crat_subtype_computeunit *cu) 1022 { 1023 dev->node_props.cpu_cores_count = cu->num_cpu_cores; 1024 dev->node_props.cpu_core_id_base = cu->processor_id_low; 1025 if (cu->hsa_capability & CRAT_CU_FLAGS_IOMMU_PRESENT) 1026 dev->node_props.capability |= HSA_CAP_ATS_PRESENT; 1027 1028 pr_debug("CU CPU: cores=%d id_base=%d\n", cu->num_cpu_cores, 1029 cu->processor_id_low); 1030 } 1031 1032 static void kfd_populated_cu_info_gpu(struct kfd_topology_device *dev, 1033 struct crat_subtype_computeunit *cu) 1034 { 1035 dev->node_props.simd_id_base = cu->processor_id_low; 1036 dev->node_props.simd_count = cu->num_simd_cores; 1037 dev->node_props.lds_size_in_kb = cu->lds_size_in_kb; 1038 dev->node_props.max_waves_per_simd = cu->max_waves_simd; 1039 dev->node_props.wave_front_size = cu->wave_front_size; 1040 dev->node_props.array_count = cu->array_count; 1041 dev->node_props.cu_per_simd_array = cu->num_cu_per_array; 1042 dev->node_props.simd_per_cu = cu->num_simd_per_cu; 1043 dev->node_props.max_slots_scratch_cu = cu->max_slots_scatch_cu; 1044 if (cu->hsa_capability & CRAT_CU_FLAGS_HOT_PLUGGABLE) 1045 dev->node_props.capability |= HSA_CAP_HOT_PLUGGABLE; 1046 pr_debug("CU GPU: id_base=%d\n", cu->processor_id_low); 1047 } 1048 1049 /* kfd_parse_subtype_cu - parse compute unit subtypes and attach it to correct 1050 * topology device present in the device_list 1051 */ 1052 static int kfd_parse_subtype_cu(struct crat_subtype_computeunit *cu, 1053 struct list_head *device_list) 1054 { 1055 struct kfd_topology_device *dev; 1056 1057 pr_debug("Found CU entry in CRAT table with proximity_domain=%d caps=%x\n", 1058 cu->proximity_domain, cu->hsa_capability); 1059 list_for_each_entry(dev, device_list, list) { 1060 if (cu->proximity_domain == dev->proximity_domain) { 1061 if (cu->flags & CRAT_CU_FLAGS_CPU_PRESENT) 1062 kfd_populated_cu_info_cpu(dev, cu); 1063 1064 if (cu->flags & CRAT_CU_FLAGS_GPU_PRESENT) 1065 kfd_populated_cu_info_gpu(dev, cu); 1066 break; 1067 } 1068 } 1069 1070 return 0; 1071 } 1072 1073 static struct kfd_mem_properties * 1074 find_subtype_mem(uint32_t heap_type, uint32_t flags, uint32_t width, 1075 struct kfd_topology_device *dev) 1076 { 1077 struct kfd_mem_properties *props; 1078 1079 list_for_each_entry(props, &dev->mem_props, list) { 1080 if (props->heap_type == heap_type 1081 && props->flags == flags 1082 && props->width == width) 1083 return props; 1084 } 1085 1086 return NULL; 1087 } 1088 /* kfd_parse_subtype_mem - parse memory subtypes and attach it to correct 1089 * topology device present in the device_list 1090 */ 1091 static int kfd_parse_subtype_mem(struct crat_subtype_memory *mem, 1092 struct list_head *device_list) 1093 { 1094 struct kfd_mem_properties *props; 1095 struct kfd_topology_device *dev; 1096 uint32_t heap_type; 1097 uint64_t size_in_bytes; 1098 uint32_t flags = 0; 1099 uint32_t width; 1100 1101 pr_debug("Found memory entry in CRAT table with proximity_domain=%d\n", 1102 mem->proximity_domain); 1103 list_for_each_entry(dev, device_list, list) { 1104 if (mem->proximity_domain == dev->proximity_domain) { 1105 /* We're on GPU node */ 1106 if (dev->node_props.cpu_cores_count == 0) { 1107 /* APU */ 1108 if (mem->visibility_type == 0) 1109 heap_type = 1110 HSA_MEM_HEAP_TYPE_FB_PRIVATE; 1111 /* dGPU */ 1112 else 1113 heap_type = mem->visibility_type; 1114 } else 1115 heap_type = HSA_MEM_HEAP_TYPE_SYSTEM; 1116 1117 if (mem->flags & CRAT_MEM_FLAGS_HOT_PLUGGABLE) 1118 flags |= HSA_MEM_FLAGS_HOT_PLUGGABLE; 1119 if (mem->flags & CRAT_MEM_FLAGS_NON_VOLATILE) 1120 flags |= HSA_MEM_FLAGS_NON_VOLATILE; 1121 1122 size_in_bytes = 1123 ((uint64_t)mem->length_high << 32) + 1124 mem->length_low; 1125 width = mem->width; 1126 1127 /* Multiple banks of the same type are aggregated into 1128 * one. User mode doesn't care about multiple physical 1129 * memory segments. It's managed as a single virtual 1130 * heap for user mode. 1131 */ 1132 props = find_subtype_mem(heap_type, flags, width, dev); 1133 if (props) { 1134 props->size_in_bytes += size_in_bytes; 1135 break; 1136 } 1137 1138 props = kfd_alloc_struct(props); 1139 if (!props) 1140 return -ENOMEM; 1141 1142 props->heap_type = heap_type; 1143 props->flags = flags; 1144 props->size_in_bytes = size_in_bytes; 1145 props->width = width; 1146 1147 dev->node_props.mem_banks_count++; 1148 list_add_tail(&props->list, &dev->mem_props); 1149 1150 break; 1151 } 1152 } 1153 1154 return 0; 1155 } 1156 1157 /* kfd_parse_subtype_cache - parse cache subtypes and attach it to correct 1158 * topology device present in the device_list 1159 */ 1160 static int kfd_parse_subtype_cache(struct crat_subtype_cache *cache, 1161 struct list_head *device_list) 1162 { 1163 struct kfd_cache_properties *props; 1164 struct kfd_topology_device *dev; 1165 uint32_t id; 1166 uint32_t total_num_of_cu; 1167 1168 id = cache->processor_id_low; 1169 1170 pr_debug("Found cache entry in CRAT table with processor_id=%d\n", id); 1171 list_for_each_entry(dev, device_list, list) { 1172 total_num_of_cu = (dev->node_props.array_count * 1173 dev->node_props.cu_per_simd_array); 1174 1175 /* Cache infomration in CRAT doesn't have proximity_domain 1176 * information as it is associated with a CPU core or GPU 1177 * Compute Unit. So map the cache using CPU core Id or SIMD 1178 * (GPU) ID. 1179 * TODO: This works because currently we can safely assume that 1180 * Compute Units are parsed before caches are parsed. In 1181 * future, remove this dependency 1182 */ 1183 if ((id >= dev->node_props.cpu_core_id_base && 1184 id <= dev->node_props.cpu_core_id_base + 1185 dev->node_props.cpu_cores_count) || 1186 (id >= dev->node_props.simd_id_base && 1187 id < dev->node_props.simd_id_base + 1188 total_num_of_cu)) { 1189 props = kfd_alloc_struct(props); 1190 if (!props) 1191 return -ENOMEM; 1192 1193 props->processor_id_low = id; 1194 props->cache_level = cache->cache_level; 1195 props->cache_size = cache->cache_size; 1196 props->cacheline_size = cache->cache_line_size; 1197 props->cachelines_per_tag = cache->lines_per_tag; 1198 props->cache_assoc = cache->associativity; 1199 props->cache_latency = cache->cache_latency; 1200 1201 memcpy(props->sibling_map, cache->sibling_map, 1202 CRAT_SIBLINGMAP_SIZE); 1203 1204 /* set the sibling_map_size as 32 for CRAT from ACPI */ 1205 props->sibling_map_size = CRAT_SIBLINGMAP_SIZE; 1206 1207 if (cache->flags & CRAT_CACHE_FLAGS_DATA_CACHE) 1208 props->cache_type |= HSA_CACHE_TYPE_DATA; 1209 if (cache->flags & CRAT_CACHE_FLAGS_INST_CACHE) 1210 props->cache_type |= HSA_CACHE_TYPE_INSTRUCTION; 1211 if (cache->flags & CRAT_CACHE_FLAGS_CPU_CACHE) 1212 props->cache_type |= HSA_CACHE_TYPE_CPU; 1213 if (cache->flags & CRAT_CACHE_FLAGS_SIMD_CACHE) 1214 props->cache_type |= HSA_CACHE_TYPE_HSACU; 1215 1216 dev->node_props.caches_count++; 1217 list_add_tail(&props->list, &dev->cache_props); 1218 1219 break; 1220 } 1221 } 1222 1223 return 0; 1224 } 1225 1226 /* kfd_parse_subtype_iolink - parse iolink subtypes and attach it to correct 1227 * topology device present in the device_list 1228 */ 1229 static int kfd_parse_subtype_iolink(struct crat_subtype_iolink *iolink, 1230 struct list_head *device_list) 1231 { 1232 struct kfd_iolink_properties *props = NULL, *props2; 1233 struct kfd_topology_device *dev, *to_dev; 1234 uint32_t id_from; 1235 uint32_t id_to; 1236 1237 id_from = iolink->proximity_domain_from; 1238 id_to = iolink->proximity_domain_to; 1239 1240 pr_debug("Found IO link entry in CRAT table with id_from=%d, id_to %d\n", 1241 id_from, id_to); 1242 list_for_each_entry(dev, device_list, list) { 1243 if (id_from == dev->proximity_domain) { 1244 props = kfd_alloc_struct(props); 1245 if (!props) 1246 return -ENOMEM; 1247 1248 props->node_from = id_from; 1249 props->node_to = id_to; 1250 props->ver_maj = iolink->version_major; 1251 props->ver_min = iolink->version_minor; 1252 props->iolink_type = iolink->io_interface_type; 1253 1254 if (props->iolink_type == CRAT_IOLINK_TYPE_PCIEXPRESS) 1255 props->weight = 20; 1256 else if (props->iolink_type == CRAT_IOLINK_TYPE_XGMI) 1257 props->weight = iolink->weight_xgmi; 1258 else 1259 props->weight = node_distance(id_from, id_to); 1260 1261 props->min_latency = iolink->minimum_latency; 1262 props->max_latency = iolink->maximum_latency; 1263 props->min_bandwidth = iolink->minimum_bandwidth_mbs; 1264 props->max_bandwidth = iolink->maximum_bandwidth_mbs; 1265 props->rec_transfer_size = 1266 iolink->recommended_transfer_size; 1267 1268 dev->node_props.io_links_count++; 1269 list_add_tail(&props->list, &dev->io_link_props); 1270 break; 1271 } 1272 } 1273 1274 /* CPU topology is created before GPUs are detected, so CPU->GPU 1275 * links are not built at that time. If a PCIe type is discovered, it 1276 * means a GPU is detected and we are adding GPU->CPU to the topology. 1277 * At this time, also add the corresponded CPU->GPU link if GPU 1278 * is large bar. 1279 * For xGMI, we only added the link with one direction in the crat 1280 * table, add corresponded reversed direction link now. 1281 */ 1282 if (props && (iolink->flags & CRAT_IOLINK_FLAGS_BI_DIRECTIONAL)) { 1283 to_dev = kfd_topology_device_by_proximity_domain_no_lock(id_to); 1284 if (!to_dev) 1285 return -ENODEV; 1286 /* same everything but the other direction */ 1287 props2 = kmemdup(props, sizeof(*props2), GFP_KERNEL); 1288 if (!props2) 1289 return -ENOMEM; 1290 1291 props2->node_from = id_to; 1292 props2->node_to = id_from; 1293 props2->kobj = NULL; 1294 to_dev->node_props.io_links_count++; 1295 list_add_tail(&props2->list, &to_dev->io_link_props); 1296 } 1297 1298 return 0; 1299 } 1300 1301 /* kfd_parse_subtype - parse subtypes and attach it to correct topology device 1302 * present in the device_list 1303 * @sub_type_hdr - subtype section of crat_image 1304 * @device_list - list of topology devices present in this crat_image 1305 */ 1306 static int kfd_parse_subtype(struct crat_subtype_generic *sub_type_hdr, 1307 struct list_head *device_list) 1308 { 1309 struct crat_subtype_computeunit *cu; 1310 struct crat_subtype_memory *mem; 1311 struct crat_subtype_cache *cache; 1312 struct crat_subtype_iolink *iolink; 1313 int ret = 0; 1314 1315 switch (sub_type_hdr->type) { 1316 case CRAT_SUBTYPE_COMPUTEUNIT_AFFINITY: 1317 cu = (struct crat_subtype_computeunit *)sub_type_hdr; 1318 ret = kfd_parse_subtype_cu(cu, device_list); 1319 break; 1320 case CRAT_SUBTYPE_MEMORY_AFFINITY: 1321 mem = (struct crat_subtype_memory *)sub_type_hdr; 1322 ret = kfd_parse_subtype_mem(mem, device_list); 1323 break; 1324 case CRAT_SUBTYPE_CACHE_AFFINITY: 1325 cache = (struct crat_subtype_cache *)sub_type_hdr; 1326 ret = kfd_parse_subtype_cache(cache, device_list); 1327 break; 1328 case CRAT_SUBTYPE_TLB_AFFINITY: 1329 /* 1330 * For now, nothing to do here 1331 */ 1332 pr_debug("Found TLB entry in CRAT table (not processing)\n"); 1333 break; 1334 case CRAT_SUBTYPE_CCOMPUTE_AFFINITY: 1335 /* 1336 * For now, nothing to do here 1337 */ 1338 pr_debug("Found CCOMPUTE entry in CRAT table (not processing)\n"); 1339 break; 1340 case CRAT_SUBTYPE_IOLINK_AFFINITY: 1341 iolink = (struct crat_subtype_iolink *)sub_type_hdr; 1342 ret = kfd_parse_subtype_iolink(iolink, device_list); 1343 break; 1344 default: 1345 pr_warn("Unknown subtype %d in CRAT\n", 1346 sub_type_hdr->type); 1347 } 1348 1349 return ret; 1350 } 1351 1352 /* kfd_parse_crat_table - parse CRAT table. For each node present in CRAT 1353 * create a kfd_topology_device and add in to device_list. Also parse 1354 * CRAT subtypes and attach it to appropriate kfd_topology_device 1355 * @crat_image - input image containing CRAT 1356 * @device_list - [OUT] list of kfd_topology_device generated after 1357 * parsing crat_image 1358 * @proximity_domain - Proximity domain of the first device in the table 1359 * 1360 * Return - 0 if successful else -ve value 1361 */ 1362 int kfd_parse_crat_table(void *crat_image, struct list_head *device_list, 1363 uint32_t proximity_domain) 1364 { 1365 struct kfd_topology_device *top_dev = NULL; 1366 struct crat_subtype_generic *sub_type_hdr; 1367 uint16_t node_id; 1368 int ret = 0; 1369 struct crat_header *crat_table = (struct crat_header *)crat_image; 1370 uint16_t num_nodes; 1371 uint32_t image_len; 1372 1373 if (!crat_image) 1374 return -EINVAL; 1375 1376 if (!list_empty(device_list)) { 1377 pr_warn("Error device list should be empty\n"); 1378 return -EINVAL; 1379 } 1380 1381 num_nodes = crat_table->num_domains; 1382 image_len = crat_table->length; 1383 1384 pr_debug("Parsing CRAT table with %d nodes\n", num_nodes); 1385 1386 for (node_id = 0; node_id < num_nodes; node_id++) { 1387 top_dev = kfd_create_topology_device(device_list); 1388 if (!top_dev) 1389 break; 1390 top_dev->proximity_domain = proximity_domain++; 1391 } 1392 1393 if (!top_dev) { 1394 ret = -ENOMEM; 1395 goto err; 1396 } 1397 1398 memcpy(top_dev->oem_id, crat_table->oem_id, CRAT_OEMID_LENGTH); 1399 memcpy(top_dev->oem_table_id, crat_table->oem_table_id, 1400 CRAT_OEMTABLEID_LENGTH); 1401 top_dev->oem_revision = crat_table->oem_revision; 1402 1403 sub_type_hdr = (struct crat_subtype_generic *)(crat_table+1); 1404 while ((char *)sub_type_hdr + sizeof(struct crat_subtype_generic) < 1405 ((char *)crat_image) + image_len) { 1406 if (sub_type_hdr->flags & CRAT_SUBTYPE_FLAGS_ENABLED) { 1407 ret = kfd_parse_subtype(sub_type_hdr, device_list); 1408 if (ret) 1409 break; 1410 } 1411 1412 sub_type_hdr = (typeof(sub_type_hdr))((char *)sub_type_hdr + 1413 sub_type_hdr->length); 1414 } 1415 1416 err: 1417 if (ret) 1418 kfd_release_topology_device_list(device_list); 1419 1420 return ret; 1421 } 1422 1423 1424 static int kfd_fill_gpu_cache_info_from_gfx_config(struct kfd_dev *kdev, 1425 struct kfd_gpu_cache_info *pcache_info) 1426 { 1427 struct amdgpu_device *adev = kdev->adev; 1428 int i = 0; 1429 1430 /* TCP L1 Cache per CU */ 1431 if (adev->gfx.config.gc_tcp_l1_size) { 1432 pcache_info[i].cache_size = adev->gfx.config.gc_tcp_l1_size; 1433 pcache_info[i].cache_level = 1; 1434 pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED | 1435 CRAT_CACHE_FLAGS_DATA_CACHE | 1436 CRAT_CACHE_FLAGS_SIMD_CACHE); 1437 pcache_info[i].num_cu_shared = adev->gfx.config.gc_num_tcp_per_wpg / 2; 1438 pcache_info[i].cache_line_size = adev->gfx.config.gc_tcp_cache_line_size; 1439 i++; 1440 } 1441 /* Scalar L1 Instruction Cache per SQC */ 1442 if (adev->gfx.config.gc_l1_instruction_cache_size_per_sqc) { 1443 pcache_info[i].cache_size = 1444 adev->gfx.config.gc_l1_instruction_cache_size_per_sqc; 1445 pcache_info[i].cache_level = 1; 1446 pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED | 1447 CRAT_CACHE_FLAGS_INST_CACHE | 1448 CRAT_CACHE_FLAGS_SIMD_CACHE); 1449 pcache_info[i].num_cu_shared = adev->gfx.config.gc_num_sqc_per_wgp * 2; 1450 pcache_info[i].cache_line_size = adev->gfx.config.gc_instruction_cache_line_size; 1451 i++; 1452 } 1453 /* Scalar L1 Data Cache per SQC */ 1454 if (adev->gfx.config.gc_l1_data_cache_size_per_sqc) { 1455 pcache_info[i].cache_size = adev->gfx.config.gc_l1_data_cache_size_per_sqc; 1456 pcache_info[i].cache_level = 1; 1457 pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED | 1458 CRAT_CACHE_FLAGS_DATA_CACHE | 1459 CRAT_CACHE_FLAGS_SIMD_CACHE); 1460 pcache_info[i].num_cu_shared = adev->gfx.config.gc_num_sqc_per_wgp * 2; 1461 pcache_info[i].cache_line_size = adev->gfx.config.gc_scalar_data_cache_line_size; 1462 i++; 1463 } 1464 /* GL1 Data Cache per SA */ 1465 if (adev->gfx.config.gc_gl1c_per_sa && 1466 adev->gfx.config.gc_gl1c_size_per_instance) { 1467 pcache_info[i].cache_size = adev->gfx.config.gc_gl1c_per_sa * 1468 adev->gfx.config.gc_gl1c_size_per_instance; 1469 pcache_info[i].cache_level = 1; 1470 pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED | 1471 CRAT_CACHE_FLAGS_DATA_CACHE | 1472 CRAT_CACHE_FLAGS_SIMD_CACHE); 1473 pcache_info[i].num_cu_shared = adev->gfx.config.max_cu_per_sh; 1474 pcache_info[i].cache_line_size = 0; 1475 i++; 1476 } 1477 /* L2 Data Cache per GPU (Total Tex Cache) */ 1478 if (adev->gfx.config.gc_gl2c_per_gpu) { 1479 pcache_info[i].cache_size = adev->gfx.config.gc_gl2c_per_gpu; 1480 pcache_info[i].cache_level = 2; 1481 pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED | 1482 CRAT_CACHE_FLAGS_DATA_CACHE | 1483 CRAT_CACHE_FLAGS_SIMD_CACHE); 1484 pcache_info[i].num_cu_shared = adev->gfx.config.max_cu_per_sh; 1485 pcache_info[i].cache_line_size = adev->gfx.config.gc_tcc_cache_line_size; 1486 i++; 1487 } 1488 /* L3 Data Cache per GPU */ 1489 if (adev->gmc.mall_size) { 1490 pcache_info[i].cache_size = adev->gmc.mall_size / 1024; 1491 pcache_info[i].cache_level = 3; 1492 pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED | 1493 CRAT_CACHE_FLAGS_DATA_CACHE | 1494 CRAT_CACHE_FLAGS_SIMD_CACHE); 1495 pcache_info[i].num_cu_shared = adev->gfx.config.max_cu_per_sh; 1496 pcache_info[i].cache_line_size = 0; 1497 i++; 1498 } 1499 return i; 1500 } 1501 1502 static int kfd_fill_gpu_cache_info_from_gfx_config_v2(struct kfd_dev *kdev, 1503 struct kfd_gpu_cache_info *pcache_info) 1504 { 1505 struct amdgpu_device *adev = kdev->adev; 1506 int i = 0; 1507 1508 /* TCP L1 Cache per CU */ 1509 if (adev->gfx.config.gc_tcp_size_per_cu) { 1510 pcache_info[i].cache_size = adev->gfx.config.gc_tcp_size_per_cu; 1511 pcache_info[i].cache_level = 1; 1512 pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED | 1513 CRAT_CACHE_FLAGS_DATA_CACHE | 1514 CRAT_CACHE_FLAGS_SIMD_CACHE); 1515 pcache_info[i].num_cu_shared = 1; 1516 i++; 1517 } 1518 /* Scalar L1 Instruction Cache per SQC */ 1519 if (adev->gfx.config.gc_l1_instruction_cache_size_per_sqc) { 1520 pcache_info[i].cache_size = 1521 adev->gfx.config.gc_l1_instruction_cache_size_per_sqc; 1522 pcache_info[i].cache_level = 1; 1523 pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED | 1524 CRAT_CACHE_FLAGS_INST_CACHE | 1525 CRAT_CACHE_FLAGS_SIMD_CACHE); 1526 pcache_info[i].num_cu_shared = adev->gfx.config.gc_num_cu_per_sqc; 1527 i++; 1528 } 1529 /* Scalar L1 Data Cache per SQC */ 1530 if (adev->gfx.config.gc_l1_data_cache_size_per_sqc) { 1531 pcache_info[i].cache_size = adev->gfx.config.gc_l1_data_cache_size_per_sqc; 1532 pcache_info[i].cache_level = 1; 1533 pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED | 1534 CRAT_CACHE_FLAGS_DATA_CACHE | 1535 CRAT_CACHE_FLAGS_SIMD_CACHE); 1536 pcache_info[i].num_cu_shared = adev->gfx.config.gc_num_cu_per_sqc; 1537 i++; 1538 } 1539 /* L2 Data Cache per GPU (Total Tex Cache) */ 1540 if (adev->gfx.config.gc_tcc_size) { 1541 pcache_info[i].cache_size = adev->gfx.config.gc_tcc_size; 1542 pcache_info[i].cache_level = 2; 1543 pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED | 1544 CRAT_CACHE_FLAGS_DATA_CACHE | 1545 CRAT_CACHE_FLAGS_SIMD_CACHE); 1546 pcache_info[i].num_cu_shared = adev->gfx.config.max_cu_per_sh; 1547 i++; 1548 } 1549 /* L3 Data Cache per GPU */ 1550 if (adev->gmc.mall_size) { 1551 pcache_info[i].cache_size = adev->gmc.mall_size / 1024; 1552 pcache_info[i].cache_level = 3; 1553 pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED | 1554 CRAT_CACHE_FLAGS_DATA_CACHE | 1555 CRAT_CACHE_FLAGS_SIMD_CACHE); 1556 pcache_info[i].num_cu_shared = adev->gfx.config.max_cu_per_sh; 1557 i++; 1558 } 1559 return i; 1560 } 1561 1562 int kfd_get_gpu_cache_info(struct kfd_node *kdev, struct kfd_gpu_cache_info **pcache_info) 1563 { 1564 int num_of_cache_types = 0; 1565 1566 switch (kdev->adev->asic_type) { 1567 case CHIP_KAVERI: 1568 *pcache_info = kaveri_cache_info; 1569 num_of_cache_types = ARRAY_SIZE(kaveri_cache_info); 1570 break; 1571 case CHIP_HAWAII: 1572 *pcache_info = hawaii_cache_info; 1573 num_of_cache_types = ARRAY_SIZE(hawaii_cache_info); 1574 break; 1575 case CHIP_CARRIZO: 1576 *pcache_info = carrizo_cache_info; 1577 num_of_cache_types = ARRAY_SIZE(carrizo_cache_info); 1578 break; 1579 case CHIP_TONGA: 1580 *pcache_info = tonga_cache_info; 1581 num_of_cache_types = ARRAY_SIZE(tonga_cache_info); 1582 break; 1583 case CHIP_FIJI: 1584 *pcache_info = fiji_cache_info; 1585 num_of_cache_types = ARRAY_SIZE(fiji_cache_info); 1586 break; 1587 case CHIP_POLARIS10: 1588 *pcache_info = polaris10_cache_info; 1589 num_of_cache_types = ARRAY_SIZE(polaris10_cache_info); 1590 break; 1591 case CHIP_POLARIS11: 1592 *pcache_info = polaris11_cache_info; 1593 num_of_cache_types = ARRAY_SIZE(polaris11_cache_info); 1594 break; 1595 case CHIP_POLARIS12: 1596 *pcache_info = polaris12_cache_info; 1597 num_of_cache_types = ARRAY_SIZE(polaris12_cache_info); 1598 break; 1599 case CHIP_VEGAM: 1600 *pcache_info = vegam_cache_info; 1601 num_of_cache_types = ARRAY_SIZE(vegam_cache_info); 1602 break; 1603 default: 1604 switch (KFD_GC_VERSION(kdev)) { 1605 case IP_VERSION(9, 0, 1): 1606 *pcache_info = vega10_cache_info; 1607 num_of_cache_types = ARRAY_SIZE(vega10_cache_info); 1608 break; 1609 case IP_VERSION(9, 2, 1): 1610 *pcache_info = vega12_cache_info; 1611 num_of_cache_types = ARRAY_SIZE(vega12_cache_info); 1612 break; 1613 case IP_VERSION(9, 4, 0): 1614 case IP_VERSION(9, 4, 1): 1615 *pcache_info = vega20_cache_info; 1616 num_of_cache_types = ARRAY_SIZE(vega20_cache_info); 1617 break; 1618 case IP_VERSION(9, 4, 2): 1619 *pcache_info = aldebaran_cache_info; 1620 num_of_cache_types = ARRAY_SIZE(aldebaran_cache_info); 1621 break; 1622 case IP_VERSION(9, 4, 3): 1623 case IP_VERSION(9, 4, 4): 1624 num_of_cache_types = 1625 kfd_fill_gpu_cache_info_from_gfx_config_v2(kdev->kfd, 1626 *pcache_info); 1627 break; 1628 case IP_VERSION(9, 1, 0): 1629 case IP_VERSION(9, 2, 2): 1630 *pcache_info = raven_cache_info; 1631 num_of_cache_types = ARRAY_SIZE(raven_cache_info); 1632 break; 1633 case IP_VERSION(9, 3, 0): 1634 *pcache_info = renoir_cache_info; 1635 num_of_cache_types = ARRAY_SIZE(renoir_cache_info); 1636 break; 1637 case IP_VERSION(10, 1, 10): 1638 case IP_VERSION(10, 1, 2): 1639 case IP_VERSION(10, 1, 3): 1640 case IP_VERSION(10, 1, 4): 1641 *pcache_info = navi10_cache_info; 1642 num_of_cache_types = ARRAY_SIZE(navi10_cache_info); 1643 break; 1644 case IP_VERSION(10, 1, 1): 1645 *pcache_info = navi14_cache_info; 1646 num_of_cache_types = ARRAY_SIZE(navi14_cache_info); 1647 break; 1648 case IP_VERSION(10, 3, 0): 1649 *pcache_info = sienna_cichlid_cache_info; 1650 num_of_cache_types = ARRAY_SIZE(sienna_cichlid_cache_info); 1651 break; 1652 case IP_VERSION(10, 3, 2): 1653 *pcache_info = navy_flounder_cache_info; 1654 num_of_cache_types = ARRAY_SIZE(navy_flounder_cache_info); 1655 break; 1656 case IP_VERSION(10, 3, 4): 1657 *pcache_info = dimgrey_cavefish_cache_info; 1658 num_of_cache_types = ARRAY_SIZE(dimgrey_cavefish_cache_info); 1659 break; 1660 case IP_VERSION(10, 3, 1): 1661 *pcache_info = vangogh_cache_info; 1662 num_of_cache_types = ARRAY_SIZE(vangogh_cache_info); 1663 break; 1664 case IP_VERSION(10, 3, 5): 1665 *pcache_info = beige_goby_cache_info; 1666 num_of_cache_types = ARRAY_SIZE(beige_goby_cache_info); 1667 break; 1668 case IP_VERSION(10, 3, 3): 1669 *pcache_info = yellow_carp_cache_info; 1670 num_of_cache_types = ARRAY_SIZE(yellow_carp_cache_info); 1671 break; 1672 case IP_VERSION(10, 3, 6): 1673 *pcache_info = gc_10_3_6_cache_info; 1674 num_of_cache_types = ARRAY_SIZE(gc_10_3_6_cache_info); 1675 break; 1676 case IP_VERSION(10, 3, 7): 1677 *pcache_info = gfx1037_cache_info; 1678 num_of_cache_types = ARRAY_SIZE(gfx1037_cache_info); 1679 break; 1680 case IP_VERSION(11, 0, 0): 1681 case IP_VERSION(11, 0, 1): 1682 case IP_VERSION(11, 0, 2): 1683 case IP_VERSION(11, 0, 3): 1684 case IP_VERSION(11, 0, 4): 1685 case IP_VERSION(11, 5, 0): 1686 case IP_VERSION(11, 5, 1): 1687 case IP_VERSION(11, 5, 2): 1688 case IP_VERSION(12, 0, 0): 1689 case IP_VERSION(12, 0, 1): 1690 num_of_cache_types = 1691 kfd_fill_gpu_cache_info_from_gfx_config(kdev->kfd, *pcache_info); 1692 break; 1693 default: 1694 *pcache_info = dummy_cache_info; 1695 num_of_cache_types = ARRAY_SIZE(dummy_cache_info); 1696 pr_warn("dummy cache info is used temporarily and real cache info need update later.\n"); 1697 break; 1698 } 1699 } 1700 return num_of_cache_types; 1701 } 1702 1703 /* Memory required to create Virtual CRAT. 1704 * Since there is no easy way to predict the amount of memory required, the 1705 * following amount is allocated for GPU Virtual CRAT. This is 1706 * expected to cover all known conditions. But to be safe additional check 1707 * is put in the code to ensure we don't overwrite. 1708 */ 1709 #define VCRAT_SIZE_FOR_GPU (4 * PAGE_SIZE) 1710 1711 /* kfd_fill_cu_for_cpu - Fill in Compute info for the given CPU NUMA node 1712 * 1713 * @numa_node_id: CPU NUMA node id 1714 * @avail_size: Available size in the memory 1715 * @sub_type_hdr: Memory into which compute info will be filled in 1716 * 1717 * Return 0 if successful else return -ve value 1718 */ 1719 static int kfd_fill_cu_for_cpu(int numa_node_id, int *avail_size, 1720 int proximity_domain, 1721 struct crat_subtype_computeunit *sub_type_hdr) 1722 { 1723 const struct cpumask *cpumask; 1724 1725 *avail_size -= sizeof(struct crat_subtype_computeunit); 1726 if (*avail_size < 0) 1727 return -ENOMEM; 1728 1729 memset(sub_type_hdr, 0, sizeof(struct crat_subtype_computeunit)); 1730 1731 /* Fill in subtype header data */ 1732 sub_type_hdr->type = CRAT_SUBTYPE_COMPUTEUNIT_AFFINITY; 1733 sub_type_hdr->length = sizeof(struct crat_subtype_computeunit); 1734 sub_type_hdr->flags = CRAT_SUBTYPE_FLAGS_ENABLED; 1735 1736 cpumask = cpumask_of_node(numa_node_id); 1737 1738 /* Fill in CU data */ 1739 sub_type_hdr->flags |= CRAT_CU_FLAGS_CPU_PRESENT; 1740 sub_type_hdr->proximity_domain = proximity_domain; 1741 sub_type_hdr->processor_id_low = kfd_numa_node_to_apic_id(numa_node_id); 1742 if (sub_type_hdr->processor_id_low == -1) 1743 return -EINVAL; 1744 1745 sub_type_hdr->num_cpu_cores = cpumask_weight(cpumask); 1746 1747 return 0; 1748 } 1749 1750 /* kfd_fill_mem_info_for_cpu - Fill in Memory info for the given CPU NUMA node 1751 * 1752 * @numa_node_id: CPU NUMA node id 1753 * @avail_size: Available size in the memory 1754 * @sub_type_hdr: Memory into which compute info will be filled in 1755 * 1756 * Return 0 if successful else return -ve value 1757 */ 1758 static int kfd_fill_mem_info_for_cpu(int numa_node_id, int *avail_size, 1759 int proximity_domain, 1760 struct crat_subtype_memory *sub_type_hdr) 1761 { 1762 uint64_t mem_in_bytes = 0; 1763 pg_data_t *pgdat; 1764 int zone_type; 1765 1766 *avail_size -= sizeof(struct crat_subtype_memory); 1767 if (*avail_size < 0) 1768 return -ENOMEM; 1769 1770 memset(sub_type_hdr, 0, sizeof(struct crat_subtype_memory)); 1771 1772 /* Fill in subtype header data */ 1773 sub_type_hdr->type = CRAT_SUBTYPE_MEMORY_AFFINITY; 1774 sub_type_hdr->length = sizeof(struct crat_subtype_memory); 1775 sub_type_hdr->flags = CRAT_SUBTYPE_FLAGS_ENABLED; 1776 1777 /* Fill in Memory Subunit data */ 1778 1779 /* Unlike si_meminfo, si_meminfo_node is not exported. So 1780 * the following lines are duplicated from si_meminfo_node 1781 * function 1782 */ 1783 pgdat = NODE_DATA(numa_node_id); 1784 for (zone_type = 0; zone_type < MAX_NR_ZONES; zone_type++) 1785 mem_in_bytes += zone_managed_pages(&pgdat->node_zones[zone_type]); 1786 mem_in_bytes <<= PAGE_SHIFT; 1787 1788 sub_type_hdr->length_low = lower_32_bits(mem_in_bytes); 1789 sub_type_hdr->length_high = upper_32_bits(mem_in_bytes); 1790 sub_type_hdr->proximity_domain = proximity_domain; 1791 1792 return 0; 1793 } 1794 1795 #ifdef CONFIG_X86_64 1796 static int kfd_fill_iolink_info_for_cpu(int numa_node_id, int *avail_size, 1797 uint32_t *num_entries, 1798 struct crat_subtype_iolink *sub_type_hdr) 1799 { 1800 int nid; 1801 struct cpuinfo_x86 *c = &cpu_data(0); 1802 uint8_t link_type; 1803 1804 if (c->x86_vendor == X86_VENDOR_AMD) 1805 link_type = CRAT_IOLINK_TYPE_HYPERTRANSPORT; 1806 else 1807 link_type = CRAT_IOLINK_TYPE_QPI_1_1; 1808 1809 *num_entries = 0; 1810 1811 /* Create IO links from this node to other CPU nodes */ 1812 for_each_online_node(nid) { 1813 if (nid == numa_node_id) /* node itself */ 1814 continue; 1815 1816 *avail_size -= sizeof(struct crat_subtype_iolink); 1817 if (*avail_size < 0) 1818 return -ENOMEM; 1819 1820 memset(sub_type_hdr, 0, sizeof(struct crat_subtype_iolink)); 1821 1822 /* Fill in subtype header data */ 1823 sub_type_hdr->type = CRAT_SUBTYPE_IOLINK_AFFINITY; 1824 sub_type_hdr->length = sizeof(struct crat_subtype_iolink); 1825 sub_type_hdr->flags = CRAT_SUBTYPE_FLAGS_ENABLED; 1826 1827 /* Fill in IO link data */ 1828 sub_type_hdr->proximity_domain_from = numa_node_id; 1829 sub_type_hdr->proximity_domain_to = nid; 1830 sub_type_hdr->io_interface_type = link_type; 1831 1832 (*num_entries)++; 1833 sub_type_hdr++; 1834 } 1835 1836 return 0; 1837 } 1838 #endif 1839 1840 /* kfd_create_vcrat_image_cpu - Create Virtual CRAT for CPU 1841 * 1842 * @pcrat_image: Fill in VCRAT for CPU 1843 * @size: [IN] allocated size of crat_image. 1844 * [OUT] actual size of data filled in crat_image 1845 */ 1846 static int kfd_create_vcrat_image_cpu(void *pcrat_image, size_t *size) 1847 { 1848 struct crat_header *crat_table = (struct crat_header *)pcrat_image; 1849 struct acpi_table_header *acpi_table; 1850 acpi_status status; 1851 struct crat_subtype_generic *sub_type_hdr; 1852 int avail_size = *size; 1853 int numa_node_id; 1854 #ifdef CONFIG_X86_64 1855 uint32_t entries = 0; 1856 #endif 1857 int ret = 0; 1858 1859 if (!pcrat_image) 1860 return -EINVAL; 1861 1862 /* Fill in CRAT Header. 1863 * Modify length and total_entries as subunits are added. 1864 */ 1865 avail_size -= sizeof(struct crat_header); 1866 if (avail_size < 0) 1867 return -ENOMEM; 1868 1869 memset(crat_table, 0, sizeof(struct crat_header)); 1870 memcpy(&crat_table->signature, CRAT_SIGNATURE, 1871 sizeof(crat_table->signature)); 1872 crat_table->length = sizeof(struct crat_header); 1873 1874 status = acpi_get_table("DSDT", 0, &acpi_table); 1875 if (status != AE_OK) 1876 pr_warn("DSDT table not found for OEM information\n"); 1877 else { 1878 crat_table->oem_revision = acpi_table->revision; 1879 memcpy(crat_table->oem_id, acpi_table->oem_id, 1880 CRAT_OEMID_LENGTH); 1881 memcpy(crat_table->oem_table_id, acpi_table->oem_table_id, 1882 CRAT_OEMTABLEID_LENGTH); 1883 acpi_put_table(acpi_table); 1884 } 1885 crat_table->total_entries = 0; 1886 crat_table->num_domains = 0; 1887 1888 sub_type_hdr = (struct crat_subtype_generic *)(crat_table+1); 1889 1890 for_each_online_node(numa_node_id) { 1891 if (kfd_numa_node_to_apic_id(numa_node_id) == -1) 1892 continue; 1893 1894 /* Fill in Subtype: Compute Unit */ 1895 ret = kfd_fill_cu_for_cpu(numa_node_id, &avail_size, 1896 crat_table->num_domains, 1897 (struct crat_subtype_computeunit *)sub_type_hdr); 1898 if (ret < 0) 1899 return ret; 1900 crat_table->length += sub_type_hdr->length; 1901 crat_table->total_entries++; 1902 1903 sub_type_hdr = (typeof(sub_type_hdr))((char *)sub_type_hdr + 1904 sub_type_hdr->length); 1905 1906 /* Fill in Subtype: Memory */ 1907 ret = kfd_fill_mem_info_for_cpu(numa_node_id, &avail_size, 1908 crat_table->num_domains, 1909 (struct crat_subtype_memory *)sub_type_hdr); 1910 if (ret < 0) 1911 return ret; 1912 crat_table->length += sub_type_hdr->length; 1913 crat_table->total_entries++; 1914 1915 sub_type_hdr = (typeof(sub_type_hdr))((char *)sub_type_hdr + 1916 sub_type_hdr->length); 1917 1918 /* Fill in Subtype: IO Link */ 1919 #ifdef CONFIG_X86_64 1920 ret = kfd_fill_iolink_info_for_cpu(numa_node_id, &avail_size, 1921 &entries, 1922 (struct crat_subtype_iolink *)sub_type_hdr); 1923 if (ret < 0) 1924 return ret; 1925 1926 if (entries) { 1927 crat_table->length += (sub_type_hdr->length * entries); 1928 crat_table->total_entries += entries; 1929 1930 sub_type_hdr = (typeof(sub_type_hdr))((char *)sub_type_hdr + 1931 sub_type_hdr->length * entries); 1932 } 1933 #else 1934 pr_info("IO link not available for non x86 platforms\n"); 1935 #endif 1936 1937 crat_table->num_domains++; 1938 } 1939 1940 /* TODO: Add cache Subtype for CPU. 1941 * Currently, CPU cache information is available in function 1942 * detect_cache_attributes(cpu) defined in the file 1943 * ./arch/x86/kernel/cpu/intel_cacheinfo.c. This function is not 1944 * exported and to get the same information the code needs to be 1945 * duplicated. 1946 */ 1947 1948 *size = crat_table->length; 1949 pr_info("Virtual CRAT table created for CPU\n"); 1950 1951 return 0; 1952 } 1953 1954 static int kfd_fill_gpu_memory_affinity(int *avail_size, 1955 struct kfd_node *kdev, uint8_t type, uint64_t size, 1956 struct crat_subtype_memory *sub_type_hdr, 1957 uint32_t proximity_domain, 1958 const struct kfd_local_mem_info *local_mem_info) 1959 { 1960 *avail_size -= sizeof(struct crat_subtype_memory); 1961 if (*avail_size < 0) 1962 return -ENOMEM; 1963 1964 memset((void *)sub_type_hdr, 0, sizeof(struct crat_subtype_memory)); 1965 sub_type_hdr->type = CRAT_SUBTYPE_MEMORY_AFFINITY; 1966 sub_type_hdr->length = sizeof(struct crat_subtype_memory); 1967 sub_type_hdr->flags |= CRAT_SUBTYPE_FLAGS_ENABLED; 1968 1969 sub_type_hdr->proximity_domain = proximity_domain; 1970 1971 pr_debug("Fill gpu memory affinity - type 0x%x size 0x%llx\n", 1972 type, size); 1973 1974 sub_type_hdr->length_low = lower_32_bits(size); 1975 sub_type_hdr->length_high = upper_32_bits(size); 1976 1977 sub_type_hdr->width = local_mem_info->vram_width; 1978 sub_type_hdr->visibility_type = type; 1979 1980 return 0; 1981 } 1982 1983 #ifdef CONFIG_ACPI_NUMA 1984 static void kfd_find_numa_node_in_srat(struct kfd_node *kdev) 1985 { 1986 struct acpi_table_header *table_header = NULL; 1987 struct acpi_subtable_header *sub_header = NULL; 1988 unsigned long table_end, subtable_len; 1989 u32 pci_id = pci_domain_nr(kdev->adev->pdev->bus) << 16 | 1990 pci_dev_id(kdev->adev->pdev); 1991 u32 bdf; 1992 acpi_status status; 1993 struct acpi_srat_cpu_affinity *cpu; 1994 struct acpi_srat_generic_affinity *gpu; 1995 int pxm = 0, max_pxm = 0; 1996 int numa_node = NUMA_NO_NODE; 1997 bool found = false; 1998 1999 /* Fetch the SRAT table from ACPI */ 2000 status = acpi_get_table(ACPI_SIG_SRAT, 0, &table_header); 2001 if (status == AE_NOT_FOUND) { 2002 pr_warn("SRAT table not found\n"); 2003 return; 2004 } else if (ACPI_FAILURE(status)) { 2005 const char *err = acpi_format_exception(status); 2006 pr_err("SRAT table error: %s\n", err); 2007 return; 2008 } 2009 2010 table_end = (unsigned long)table_header + table_header->length; 2011 2012 /* Parse all entries looking for a match. */ 2013 sub_header = (struct acpi_subtable_header *) 2014 ((unsigned long)table_header + 2015 sizeof(struct acpi_table_srat)); 2016 subtable_len = sub_header->length; 2017 2018 while (((unsigned long)sub_header) + subtable_len < table_end) { 2019 /* 2020 * If length is 0, break from this loop to avoid 2021 * infinite loop. 2022 */ 2023 if (subtable_len == 0) { 2024 pr_err("SRAT invalid zero length\n"); 2025 break; 2026 } 2027 2028 switch (sub_header->type) { 2029 case ACPI_SRAT_TYPE_CPU_AFFINITY: 2030 cpu = (struct acpi_srat_cpu_affinity *)sub_header; 2031 pxm = *((u32 *)cpu->proximity_domain_hi) << 8 | 2032 cpu->proximity_domain_lo; 2033 if (pxm > max_pxm) 2034 max_pxm = pxm; 2035 break; 2036 case ACPI_SRAT_TYPE_GENERIC_AFFINITY: 2037 gpu = (struct acpi_srat_generic_affinity *)sub_header; 2038 bdf = *((u16 *)(&gpu->device_handle[0])) << 16 | 2039 *((u16 *)(&gpu->device_handle[2])); 2040 if (bdf == pci_id) { 2041 found = true; 2042 numa_node = pxm_to_node(gpu->proximity_domain); 2043 } 2044 break; 2045 default: 2046 break; 2047 } 2048 2049 if (found) 2050 break; 2051 2052 sub_header = (struct acpi_subtable_header *) 2053 ((unsigned long)sub_header + subtable_len); 2054 subtable_len = sub_header->length; 2055 } 2056 2057 acpi_put_table(table_header); 2058 2059 /* Workaround bad cpu-gpu binding case */ 2060 if (found && (numa_node < 0 || 2061 numa_node > pxm_to_node(max_pxm))) 2062 numa_node = 0; 2063 2064 if (numa_node != NUMA_NO_NODE) 2065 set_dev_node(&kdev->adev->pdev->dev, numa_node); 2066 } 2067 #endif 2068 2069 #define KFD_CRAT_INTRA_SOCKET_WEIGHT 13 2070 #define KFD_CRAT_XGMI_WEIGHT 15 2071 2072 /* kfd_fill_gpu_direct_io_link - Fill in direct io link from GPU 2073 * to its NUMA node 2074 * @avail_size: Available size in the memory 2075 * @kdev - [IN] GPU device 2076 * @sub_type_hdr: Memory into which io link info will be filled in 2077 * @proximity_domain - proximity domain of the GPU node 2078 * 2079 * Return 0 if successful else return -ve value 2080 */ 2081 static int kfd_fill_gpu_direct_io_link_to_cpu(int *avail_size, 2082 struct kfd_node *kdev, 2083 struct crat_subtype_iolink *sub_type_hdr, 2084 uint32_t proximity_domain) 2085 { 2086 *avail_size -= sizeof(struct crat_subtype_iolink); 2087 if (*avail_size < 0) 2088 return -ENOMEM; 2089 2090 memset((void *)sub_type_hdr, 0, sizeof(struct crat_subtype_iolink)); 2091 2092 /* Fill in subtype header data */ 2093 sub_type_hdr->type = CRAT_SUBTYPE_IOLINK_AFFINITY; 2094 sub_type_hdr->length = sizeof(struct crat_subtype_iolink); 2095 sub_type_hdr->flags |= CRAT_SUBTYPE_FLAGS_ENABLED; 2096 if (kfd_dev_is_large_bar(kdev)) 2097 sub_type_hdr->flags |= CRAT_IOLINK_FLAGS_BI_DIRECTIONAL; 2098 2099 /* Fill in IOLINK subtype. 2100 * TODO: Fill-in other fields of iolink subtype 2101 */ 2102 if (kdev->adev->gmc.xgmi.connected_to_cpu || 2103 (KFD_GC_VERSION(kdev) == IP_VERSION(9, 4, 3) && 2104 kdev->adev->smuio.funcs->get_pkg_type(kdev->adev) == 2105 AMDGPU_PKG_TYPE_APU)) { 2106 bool ext_cpu = KFD_GC_VERSION(kdev) != IP_VERSION(9, 4, 3); 2107 int mem_bw = 819200, weight = ext_cpu ? KFD_CRAT_XGMI_WEIGHT : 2108 KFD_CRAT_INTRA_SOCKET_WEIGHT; 2109 uint32_t bandwidth = ext_cpu ? amdgpu_amdkfd_get_xgmi_bandwidth_mbytes( 2110 kdev->adev, NULL, true) : mem_bw; 2111 2112 /* 2113 * with host gpu xgmi link, host can access gpu memory whether 2114 * or not pcie bar type is large, so always create bidirectional 2115 * io link. 2116 */ 2117 sub_type_hdr->flags |= CRAT_IOLINK_FLAGS_BI_DIRECTIONAL; 2118 sub_type_hdr->io_interface_type = CRAT_IOLINK_TYPE_XGMI; 2119 sub_type_hdr->weight_xgmi = weight; 2120 sub_type_hdr->minimum_bandwidth_mbs = bandwidth; 2121 sub_type_hdr->maximum_bandwidth_mbs = bandwidth; 2122 } else { 2123 sub_type_hdr->io_interface_type = CRAT_IOLINK_TYPE_PCIEXPRESS; 2124 sub_type_hdr->minimum_bandwidth_mbs = 2125 amdgpu_amdkfd_get_pcie_bandwidth_mbytes(kdev->adev, true); 2126 sub_type_hdr->maximum_bandwidth_mbs = 2127 amdgpu_amdkfd_get_pcie_bandwidth_mbytes(kdev->adev, false); 2128 } 2129 2130 sub_type_hdr->proximity_domain_from = proximity_domain; 2131 2132 #ifdef CONFIG_ACPI_NUMA 2133 if (kdev->adev->pdev->dev.numa_node == NUMA_NO_NODE && 2134 num_possible_nodes() > 1) 2135 kfd_find_numa_node_in_srat(kdev); 2136 #endif 2137 #ifdef CONFIG_NUMA 2138 if (kdev->adev->pdev->dev.numa_node == NUMA_NO_NODE) 2139 sub_type_hdr->proximity_domain_to = 0; 2140 else 2141 sub_type_hdr->proximity_domain_to = kdev->adev->pdev->dev.numa_node; 2142 #else 2143 sub_type_hdr->proximity_domain_to = 0; 2144 #endif 2145 return 0; 2146 } 2147 2148 static int kfd_fill_gpu_xgmi_link_to_gpu(int *avail_size, 2149 struct kfd_node *kdev, 2150 struct kfd_node *peer_kdev, 2151 struct crat_subtype_iolink *sub_type_hdr, 2152 uint32_t proximity_domain_from, 2153 uint32_t proximity_domain_to) 2154 { 2155 bool use_ta_info = kdev->kfd->num_nodes == 1; 2156 2157 *avail_size -= sizeof(struct crat_subtype_iolink); 2158 if (*avail_size < 0) 2159 return -ENOMEM; 2160 2161 memset((void *)sub_type_hdr, 0, sizeof(struct crat_subtype_iolink)); 2162 2163 sub_type_hdr->type = CRAT_SUBTYPE_IOLINK_AFFINITY; 2164 sub_type_hdr->length = sizeof(struct crat_subtype_iolink); 2165 sub_type_hdr->flags |= CRAT_SUBTYPE_FLAGS_ENABLED | 2166 CRAT_IOLINK_FLAGS_BI_DIRECTIONAL; 2167 2168 sub_type_hdr->io_interface_type = CRAT_IOLINK_TYPE_XGMI; 2169 sub_type_hdr->proximity_domain_from = proximity_domain_from; 2170 sub_type_hdr->proximity_domain_to = proximity_domain_to; 2171 2172 if (use_ta_info) { 2173 sub_type_hdr->weight_xgmi = KFD_CRAT_XGMI_WEIGHT * 2174 amdgpu_amdkfd_get_xgmi_hops_count(kdev->adev, peer_kdev->adev); 2175 sub_type_hdr->maximum_bandwidth_mbs = 2176 amdgpu_amdkfd_get_xgmi_bandwidth_mbytes(kdev->adev, 2177 peer_kdev->adev, false); 2178 sub_type_hdr->minimum_bandwidth_mbs = sub_type_hdr->maximum_bandwidth_mbs ? 2179 amdgpu_amdkfd_get_xgmi_bandwidth_mbytes(kdev->adev, NULL, true) : 0; 2180 } else { 2181 bool is_single_hop = kdev->kfd == peer_kdev->kfd; 2182 int weight = is_single_hop ? KFD_CRAT_INTRA_SOCKET_WEIGHT : 2183 (2 * KFD_CRAT_INTRA_SOCKET_WEIGHT) + KFD_CRAT_XGMI_WEIGHT; 2184 int mem_bw = 819200; 2185 2186 sub_type_hdr->weight_xgmi = weight; 2187 sub_type_hdr->maximum_bandwidth_mbs = is_single_hop ? mem_bw : 0; 2188 sub_type_hdr->minimum_bandwidth_mbs = is_single_hop ? mem_bw : 0; 2189 } 2190 2191 return 0; 2192 } 2193 2194 /* kfd_create_vcrat_image_gpu - Create Virtual CRAT for CPU 2195 * 2196 * @pcrat_image: Fill in VCRAT for GPU 2197 * @size: [IN] allocated size of crat_image. 2198 * [OUT] actual size of data filled in crat_image 2199 */ 2200 static int kfd_create_vcrat_image_gpu(void *pcrat_image, 2201 size_t *size, struct kfd_node *kdev, 2202 uint32_t proximity_domain) 2203 { 2204 struct crat_header *crat_table = (struct crat_header *)pcrat_image; 2205 struct amdgpu_gfx_config *gfx_info = &kdev->adev->gfx.config; 2206 struct amdgpu_cu_info *cu_info = &kdev->adev->gfx.cu_info; 2207 struct crat_subtype_generic *sub_type_hdr; 2208 struct kfd_local_mem_info local_mem_info; 2209 struct kfd_topology_device *peer_dev; 2210 struct crat_subtype_computeunit *cu; 2211 int avail_size = *size; 2212 uint32_t total_num_of_cu; 2213 uint32_t nid = 0; 2214 int ret = 0; 2215 2216 if (!pcrat_image || avail_size < VCRAT_SIZE_FOR_GPU) 2217 return -EINVAL; 2218 2219 /* Fill the CRAT Header. 2220 * Modify length and total_entries as subunits are added. 2221 */ 2222 avail_size -= sizeof(struct crat_header); 2223 memset(crat_table, 0, sizeof(struct crat_header)); 2224 2225 memcpy(&crat_table->signature, CRAT_SIGNATURE, 2226 sizeof(crat_table->signature)); 2227 /* Change length as we add more subtypes*/ 2228 crat_table->length = sizeof(struct crat_header); 2229 crat_table->num_domains = 1; 2230 crat_table->total_entries = 0; 2231 2232 /* Fill in Subtype: Compute Unit 2233 * First fill in the sub type header and then sub type data 2234 */ 2235 avail_size -= sizeof(struct crat_subtype_computeunit); 2236 sub_type_hdr = (struct crat_subtype_generic *)(crat_table + 1); 2237 memset(sub_type_hdr, 0, sizeof(struct crat_subtype_computeunit)); 2238 2239 sub_type_hdr->type = CRAT_SUBTYPE_COMPUTEUNIT_AFFINITY; 2240 sub_type_hdr->length = sizeof(struct crat_subtype_computeunit); 2241 sub_type_hdr->flags = CRAT_SUBTYPE_FLAGS_ENABLED; 2242 2243 /* Fill CU subtype data */ 2244 cu = (struct crat_subtype_computeunit *)sub_type_hdr; 2245 cu->flags |= CRAT_CU_FLAGS_GPU_PRESENT; 2246 cu->proximity_domain = proximity_domain; 2247 2248 cu->num_simd_per_cu = cu_info->simd_per_cu; 2249 cu->num_simd_cores = cu_info->simd_per_cu * 2250 (cu_info->number / kdev->kfd->num_nodes); 2251 cu->max_waves_simd = cu_info->max_waves_per_simd; 2252 2253 cu->wave_front_size = cu_info->wave_front_size; 2254 cu->array_count = gfx_info->max_sh_per_se * 2255 gfx_info->max_shader_engines; 2256 total_num_of_cu = (cu->array_count * gfx_info->max_cu_per_sh); 2257 cu->processor_id_low = get_and_inc_gpu_processor_id(total_num_of_cu); 2258 cu->num_cu_per_array = gfx_info->max_cu_per_sh; 2259 cu->max_slots_scatch_cu = cu_info->max_scratch_slots_per_cu; 2260 cu->num_banks = gfx_info->max_shader_engines; 2261 cu->lds_size_in_kb = cu_info->lds_size; 2262 2263 cu->hsa_capability = 0; 2264 2265 crat_table->length += sub_type_hdr->length; 2266 crat_table->total_entries++; 2267 2268 /* Fill in Subtype: Memory. Only on systems with large BAR (no 2269 * private FB), report memory as public. On other systems 2270 * report the total FB size (public+private) as a single 2271 * private heap. 2272 */ 2273 local_mem_info = kdev->local_mem_info; 2274 sub_type_hdr = (typeof(sub_type_hdr))((char *)sub_type_hdr + 2275 sub_type_hdr->length); 2276 2277 if (kdev->adev->debug_largebar) 2278 local_mem_info.local_mem_size_private = 0; 2279 2280 if (local_mem_info.local_mem_size_private == 0) 2281 ret = kfd_fill_gpu_memory_affinity(&avail_size, 2282 kdev, HSA_MEM_HEAP_TYPE_FB_PUBLIC, 2283 local_mem_info.local_mem_size_public, 2284 (struct crat_subtype_memory *)sub_type_hdr, 2285 proximity_domain, 2286 &local_mem_info); 2287 else 2288 ret = kfd_fill_gpu_memory_affinity(&avail_size, 2289 kdev, HSA_MEM_HEAP_TYPE_FB_PRIVATE, 2290 local_mem_info.local_mem_size_public + 2291 local_mem_info.local_mem_size_private, 2292 (struct crat_subtype_memory *)sub_type_hdr, 2293 proximity_domain, 2294 &local_mem_info); 2295 if (ret < 0) 2296 return ret; 2297 2298 crat_table->length += sizeof(struct crat_subtype_memory); 2299 crat_table->total_entries++; 2300 2301 /* Fill in Subtype: IO_LINKS 2302 * Only direct links are added here which is Link from GPU to 2303 * its NUMA node. Indirect links are added by userspace. 2304 */ 2305 sub_type_hdr = (typeof(sub_type_hdr))((char *)sub_type_hdr + 2306 sub_type_hdr->length); 2307 ret = kfd_fill_gpu_direct_io_link_to_cpu(&avail_size, kdev, 2308 (struct crat_subtype_iolink *)sub_type_hdr, proximity_domain); 2309 2310 if (ret < 0) 2311 return ret; 2312 2313 crat_table->length += sub_type_hdr->length; 2314 crat_table->total_entries++; 2315 2316 2317 /* Fill in Subtype: IO_LINKS 2318 * Direct links from GPU to other GPUs through xGMI. 2319 * We will loop GPUs that already be processed (with lower value 2320 * of proximity_domain), add the link for the GPUs with same 2321 * hive id (from this GPU to other GPU) . The reversed iolink 2322 * (from other GPU to this GPU) will be added 2323 * in kfd_parse_subtype_iolink. 2324 */ 2325 if (kdev->kfd->hive_id) { 2326 for (nid = 0; nid < proximity_domain; ++nid) { 2327 peer_dev = kfd_topology_device_by_proximity_domain_no_lock(nid); 2328 if (!peer_dev->gpu) 2329 continue; 2330 if (peer_dev->gpu->kfd->hive_id != kdev->kfd->hive_id) 2331 continue; 2332 sub_type_hdr = (typeof(sub_type_hdr))( 2333 (char *)sub_type_hdr + 2334 sizeof(struct crat_subtype_iolink)); 2335 ret = kfd_fill_gpu_xgmi_link_to_gpu( 2336 &avail_size, kdev, peer_dev->gpu, 2337 (struct crat_subtype_iolink *)sub_type_hdr, 2338 proximity_domain, nid); 2339 if (ret < 0) 2340 return ret; 2341 crat_table->length += sub_type_hdr->length; 2342 crat_table->total_entries++; 2343 } 2344 } 2345 *size = crat_table->length; 2346 pr_info("Virtual CRAT table created for GPU\n"); 2347 2348 return ret; 2349 } 2350 2351 /* kfd_create_crat_image_virtual - Allocates memory for CRAT image and 2352 * creates a Virtual CRAT (VCRAT) image 2353 * 2354 * NOTE: Call kfd_destroy_crat_image to free CRAT image memory 2355 * 2356 * @crat_image: VCRAT image created because ACPI does not have a 2357 * CRAT for this device 2358 * @size: [OUT] size of virtual crat_image 2359 * @flags: COMPUTE_UNIT_CPU - Create VCRAT for CPU device 2360 * COMPUTE_UNIT_GPU - Create VCRAT for GPU 2361 * (COMPUTE_UNIT_CPU | COMPUTE_UNIT_GPU) - Create VCRAT for APU 2362 * -- this option is not currently implemented. 2363 * The assumption is that all AMD APUs will have CRAT 2364 * @kdev: Valid kfd_node required if flags contain COMPUTE_UNIT_GPU 2365 * 2366 * Return 0 if successful else return -ve value 2367 */ 2368 int kfd_create_crat_image_virtual(void **crat_image, size_t *size, 2369 int flags, struct kfd_node *kdev, 2370 uint32_t proximity_domain) 2371 { 2372 void *pcrat_image = NULL; 2373 int ret = 0, num_nodes; 2374 size_t dyn_size; 2375 2376 if (!crat_image) 2377 return -EINVAL; 2378 2379 *crat_image = NULL; 2380 2381 /* Allocate the CPU Virtual CRAT size based on the number of online 2382 * nodes. Allocate VCRAT_SIZE_FOR_GPU for GPU virtual CRAT image. 2383 * This should cover all the current conditions. A check is put not 2384 * to overwrite beyond allocated size for GPUs 2385 */ 2386 switch (flags) { 2387 case COMPUTE_UNIT_CPU: 2388 num_nodes = num_online_nodes(); 2389 dyn_size = sizeof(struct crat_header) + 2390 num_nodes * (sizeof(struct crat_subtype_computeunit) + 2391 sizeof(struct crat_subtype_memory) + 2392 (num_nodes - 1) * sizeof(struct crat_subtype_iolink)); 2393 pcrat_image = kvmalloc(dyn_size, GFP_KERNEL); 2394 if (!pcrat_image) 2395 return -ENOMEM; 2396 *size = dyn_size; 2397 pr_debug("CRAT size is %ld", dyn_size); 2398 ret = kfd_create_vcrat_image_cpu(pcrat_image, size); 2399 break; 2400 case COMPUTE_UNIT_GPU: 2401 if (!kdev) 2402 return -EINVAL; 2403 pcrat_image = kvmalloc(VCRAT_SIZE_FOR_GPU, GFP_KERNEL); 2404 if (!pcrat_image) 2405 return -ENOMEM; 2406 *size = VCRAT_SIZE_FOR_GPU; 2407 ret = kfd_create_vcrat_image_gpu(pcrat_image, size, kdev, 2408 proximity_domain); 2409 break; 2410 case (COMPUTE_UNIT_CPU | COMPUTE_UNIT_GPU): 2411 /* TODO: */ 2412 ret = -EINVAL; 2413 pr_err("VCRAT not implemented for APU\n"); 2414 break; 2415 default: 2416 ret = -EINVAL; 2417 } 2418 2419 if (!ret) 2420 *crat_image = pcrat_image; 2421 else 2422 kvfree(pcrat_image); 2423 2424 return ret; 2425 } 2426 2427 2428 /* kfd_destroy_crat_image 2429 * 2430 * @crat_image: [IN] - crat_image from kfd_create_crat_image_xxx(..) 2431 * 2432 */ 2433 void kfd_destroy_crat_image(void *crat_image) 2434 { 2435 kvfree(crat_image); 2436 } 2437