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[0].num_cu_shared = adev->gfx.config.gc_num_tcp_per_wpg / 2; 1438 i++; 1439 } 1440 /* Scalar L1 Instruction Cache per SQC */ 1441 if (adev->gfx.config.gc_l1_instruction_cache_size_per_sqc) { 1442 pcache_info[i].cache_size = 1443 adev->gfx.config.gc_l1_instruction_cache_size_per_sqc; 1444 pcache_info[i].cache_level = 1; 1445 pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED | 1446 CRAT_CACHE_FLAGS_INST_CACHE | 1447 CRAT_CACHE_FLAGS_SIMD_CACHE); 1448 pcache_info[i].num_cu_shared = adev->gfx.config.gc_num_sqc_per_wgp * 2; 1449 i++; 1450 } 1451 /* Scalar L1 Data Cache per SQC */ 1452 if (adev->gfx.config.gc_l1_data_cache_size_per_sqc) { 1453 pcache_info[i].cache_size = adev->gfx.config.gc_l1_data_cache_size_per_sqc; 1454 pcache_info[i].cache_level = 1; 1455 pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED | 1456 CRAT_CACHE_FLAGS_DATA_CACHE | 1457 CRAT_CACHE_FLAGS_SIMD_CACHE); 1458 pcache_info[i].num_cu_shared = adev->gfx.config.gc_num_sqc_per_wgp * 2; 1459 i++; 1460 } 1461 /* GL1 Data Cache per SA */ 1462 if (adev->gfx.config.gc_gl1c_per_sa && 1463 adev->gfx.config.gc_gl1c_size_per_instance) { 1464 pcache_info[i].cache_size = adev->gfx.config.gc_gl1c_per_sa * 1465 adev->gfx.config.gc_gl1c_size_per_instance; 1466 pcache_info[i].cache_level = 1; 1467 pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED | 1468 CRAT_CACHE_FLAGS_DATA_CACHE | 1469 CRAT_CACHE_FLAGS_SIMD_CACHE); 1470 pcache_info[i].num_cu_shared = adev->gfx.config.max_cu_per_sh; 1471 i++; 1472 } 1473 /* L2 Data Cache per GPU (Total Tex Cache) */ 1474 if (adev->gfx.config.gc_gl2c_per_gpu) { 1475 pcache_info[i].cache_size = adev->gfx.config.gc_gl2c_per_gpu; 1476 pcache_info[i].cache_level = 2; 1477 pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED | 1478 CRAT_CACHE_FLAGS_DATA_CACHE | 1479 CRAT_CACHE_FLAGS_SIMD_CACHE); 1480 pcache_info[i].num_cu_shared = adev->gfx.config.max_cu_per_sh; 1481 i++; 1482 } 1483 /* L3 Data Cache per GPU */ 1484 if (adev->gmc.mall_size) { 1485 pcache_info[i].cache_size = adev->gmc.mall_size / 1024; 1486 pcache_info[i].cache_level = 3; 1487 pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED | 1488 CRAT_CACHE_FLAGS_DATA_CACHE | 1489 CRAT_CACHE_FLAGS_SIMD_CACHE); 1490 pcache_info[i].num_cu_shared = adev->gfx.config.max_cu_per_sh; 1491 i++; 1492 } 1493 return i; 1494 } 1495 1496 static int kfd_fill_gpu_cache_info_from_gfx_config_v2(struct kfd_dev *kdev, 1497 struct kfd_gpu_cache_info *pcache_info) 1498 { 1499 struct amdgpu_device *adev = kdev->adev; 1500 int i = 0; 1501 1502 /* TCP L1 Cache per CU */ 1503 if (adev->gfx.config.gc_tcp_size_per_cu) { 1504 pcache_info[i].cache_size = adev->gfx.config.gc_tcp_size_per_cu; 1505 pcache_info[i].cache_level = 1; 1506 pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED | 1507 CRAT_CACHE_FLAGS_DATA_CACHE | 1508 CRAT_CACHE_FLAGS_SIMD_CACHE); 1509 pcache_info[i].num_cu_shared = 1; 1510 i++; 1511 } 1512 /* Scalar L1 Instruction Cache per SQC */ 1513 if (adev->gfx.config.gc_l1_instruction_cache_size_per_sqc) { 1514 pcache_info[i].cache_size = 1515 adev->gfx.config.gc_l1_instruction_cache_size_per_sqc; 1516 pcache_info[i].cache_level = 1; 1517 pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED | 1518 CRAT_CACHE_FLAGS_INST_CACHE | 1519 CRAT_CACHE_FLAGS_SIMD_CACHE); 1520 pcache_info[i].num_cu_shared = adev->gfx.config.gc_num_cu_per_sqc; 1521 i++; 1522 } 1523 /* Scalar L1 Data Cache per SQC */ 1524 if (adev->gfx.config.gc_l1_data_cache_size_per_sqc) { 1525 pcache_info[i].cache_size = adev->gfx.config.gc_l1_data_cache_size_per_sqc; 1526 pcache_info[i].cache_level = 1; 1527 pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED | 1528 CRAT_CACHE_FLAGS_DATA_CACHE | 1529 CRAT_CACHE_FLAGS_SIMD_CACHE); 1530 pcache_info[i].num_cu_shared = adev->gfx.config.gc_num_cu_per_sqc; 1531 i++; 1532 } 1533 /* L2 Data Cache per GPU (Total Tex Cache) */ 1534 if (adev->gfx.config.gc_tcc_size) { 1535 pcache_info[i].cache_size = adev->gfx.config.gc_tcc_size; 1536 pcache_info[i].cache_level = 2; 1537 pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED | 1538 CRAT_CACHE_FLAGS_DATA_CACHE | 1539 CRAT_CACHE_FLAGS_SIMD_CACHE); 1540 pcache_info[i].num_cu_shared = adev->gfx.config.max_cu_per_sh; 1541 i++; 1542 } 1543 /* L3 Data Cache per GPU */ 1544 if (adev->gmc.mall_size) { 1545 pcache_info[i].cache_size = adev->gmc.mall_size / 1024; 1546 pcache_info[i].cache_level = 3; 1547 pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED | 1548 CRAT_CACHE_FLAGS_DATA_CACHE | 1549 CRAT_CACHE_FLAGS_SIMD_CACHE); 1550 pcache_info[i].num_cu_shared = adev->gfx.config.max_cu_per_sh; 1551 i++; 1552 } 1553 return i; 1554 } 1555 1556 int kfd_get_gpu_cache_info(struct kfd_node *kdev, struct kfd_gpu_cache_info **pcache_info) 1557 { 1558 int num_of_cache_types = 0; 1559 1560 switch (kdev->adev->asic_type) { 1561 case CHIP_KAVERI: 1562 *pcache_info = kaveri_cache_info; 1563 num_of_cache_types = ARRAY_SIZE(kaveri_cache_info); 1564 break; 1565 case CHIP_HAWAII: 1566 *pcache_info = hawaii_cache_info; 1567 num_of_cache_types = ARRAY_SIZE(hawaii_cache_info); 1568 break; 1569 case CHIP_CARRIZO: 1570 *pcache_info = carrizo_cache_info; 1571 num_of_cache_types = ARRAY_SIZE(carrizo_cache_info); 1572 break; 1573 case CHIP_TONGA: 1574 *pcache_info = tonga_cache_info; 1575 num_of_cache_types = ARRAY_SIZE(tonga_cache_info); 1576 break; 1577 case CHIP_FIJI: 1578 *pcache_info = fiji_cache_info; 1579 num_of_cache_types = ARRAY_SIZE(fiji_cache_info); 1580 break; 1581 case CHIP_POLARIS10: 1582 *pcache_info = polaris10_cache_info; 1583 num_of_cache_types = ARRAY_SIZE(polaris10_cache_info); 1584 break; 1585 case CHIP_POLARIS11: 1586 *pcache_info = polaris11_cache_info; 1587 num_of_cache_types = ARRAY_SIZE(polaris11_cache_info); 1588 break; 1589 case CHIP_POLARIS12: 1590 *pcache_info = polaris12_cache_info; 1591 num_of_cache_types = ARRAY_SIZE(polaris12_cache_info); 1592 break; 1593 case CHIP_VEGAM: 1594 *pcache_info = vegam_cache_info; 1595 num_of_cache_types = ARRAY_SIZE(vegam_cache_info); 1596 break; 1597 default: 1598 switch (KFD_GC_VERSION(kdev)) { 1599 case IP_VERSION(9, 0, 1): 1600 *pcache_info = vega10_cache_info; 1601 num_of_cache_types = ARRAY_SIZE(vega10_cache_info); 1602 break; 1603 case IP_VERSION(9, 2, 1): 1604 *pcache_info = vega12_cache_info; 1605 num_of_cache_types = ARRAY_SIZE(vega12_cache_info); 1606 break; 1607 case IP_VERSION(9, 4, 0): 1608 case IP_VERSION(9, 4, 1): 1609 *pcache_info = vega20_cache_info; 1610 num_of_cache_types = ARRAY_SIZE(vega20_cache_info); 1611 break; 1612 case IP_VERSION(9, 4, 2): 1613 *pcache_info = aldebaran_cache_info; 1614 num_of_cache_types = ARRAY_SIZE(aldebaran_cache_info); 1615 break; 1616 case IP_VERSION(9, 4, 3): 1617 num_of_cache_types = 1618 kfd_fill_gpu_cache_info_from_gfx_config_v2(kdev->kfd, 1619 *pcache_info); 1620 break; 1621 case IP_VERSION(9, 1, 0): 1622 case IP_VERSION(9, 2, 2): 1623 *pcache_info = raven_cache_info; 1624 num_of_cache_types = ARRAY_SIZE(raven_cache_info); 1625 break; 1626 case IP_VERSION(9, 3, 0): 1627 *pcache_info = renoir_cache_info; 1628 num_of_cache_types = ARRAY_SIZE(renoir_cache_info); 1629 break; 1630 case IP_VERSION(10, 1, 10): 1631 case IP_VERSION(10, 1, 2): 1632 case IP_VERSION(10, 1, 3): 1633 case IP_VERSION(10, 1, 4): 1634 *pcache_info = navi10_cache_info; 1635 num_of_cache_types = ARRAY_SIZE(navi10_cache_info); 1636 break; 1637 case IP_VERSION(10, 1, 1): 1638 *pcache_info = navi14_cache_info; 1639 num_of_cache_types = ARRAY_SIZE(navi14_cache_info); 1640 break; 1641 case IP_VERSION(10, 3, 0): 1642 *pcache_info = sienna_cichlid_cache_info; 1643 num_of_cache_types = ARRAY_SIZE(sienna_cichlid_cache_info); 1644 break; 1645 case IP_VERSION(10, 3, 2): 1646 *pcache_info = navy_flounder_cache_info; 1647 num_of_cache_types = ARRAY_SIZE(navy_flounder_cache_info); 1648 break; 1649 case IP_VERSION(10, 3, 4): 1650 *pcache_info = dimgrey_cavefish_cache_info; 1651 num_of_cache_types = ARRAY_SIZE(dimgrey_cavefish_cache_info); 1652 break; 1653 case IP_VERSION(10, 3, 1): 1654 *pcache_info = vangogh_cache_info; 1655 num_of_cache_types = ARRAY_SIZE(vangogh_cache_info); 1656 break; 1657 case IP_VERSION(10, 3, 5): 1658 *pcache_info = beige_goby_cache_info; 1659 num_of_cache_types = ARRAY_SIZE(beige_goby_cache_info); 1660 break; 1661 case IP_VERSION(10, 3, 3): 1662 *pcache_info = yellow_carp_cache_info; 1663 num_of_cache_types = ARRAY_SIZE(yellow_carp_cache_info); 1664 break; 1665 case IP_VERSION(10, 3, 6): 1666 *pcache_info = gc_10_3_6_cache_info; 1667 num_of_cache_types = ARRAY_SIZE(gc_10_3_6_cache_info); 1668 break; 1669 case IP_VERSION(10, 3, 7): 1670 *pcache_info = gfx1037_cache_info; 1671 num_of_cache_types = ARRAY_SIZE(gfx1037_cache_info); 1672 break; 1673 case IP_VERSION(11, 0, 0): 1674 case IP_VERSION(11, 0, 1): 1675 case IP_VERSION(11, 0, 2): 1676 case IP_VERSION(11, 0, 3): 1677 case IP_VERSION(11, 0, 4): 1678 case IP_VERSION(11, 5, 0): 1679 case IP_VERSION(11, 5, 1): 1680 num_of_cache_types = 1681 kfd_fill_gpu_cache_info_from_gfx_config(kdev->kfd, *pcache_info); 1682 break; 1683 default: 1684 *pcache_info = dummy_cache_info; 1685 num_of_cache_types = ARRAY_SIZE(dummy_cache_info); 1686 pr_warn("dummy cache info is used temporarily and real cache info need update later.\n"); 1687 break; 1688 } 1689 } 1690 return num_of_cache_types; 1691 } 1692 1693 /* Memory required to create Virtual CRAT. 1694 * Since there is no easy way to predict the amount of memory required, the 1695 * following amount is allocated for GPU Virtual CRAT. This is 1696 * expected to cover all known conditions. But to be safe additional check 1697 * is put in the code to ensure we don't overwrite. 1698 */ 1699 #define VCRAT_SIZE_FOR_GPU (4 * PAGE_SIZE) 1700 1701 /* kfd_fill_cu_for_cpu - Fill in Compute info for the given CPU NUMA node 1702 * 1703 * @numa_node_id: CPU NUMA node id 1704 * @avail_size: Available size in the memory 1705 * @sub_type_hdr: Memory into which compute info will be filled in 1706 * 1707 * Return 0 if successful else return -ve value 1708 */ 1709 static int kfd_fill_cu_for_cpu(int numa_node_id, int *avail_size, 1710 int proximity_domain, 1711 struct crat_subtype_computeunit *sub_type_hdr) 1712 { 1713 const struct cpumask *cpumask; 1714 1715 *avail_size -= sizeof(struct crat_subtype_computeunit); 1716 if (*avail_size < 0) 1717 return -ENOMEM; 1718 1719 memset(sub_type_hdr, 0, sizeof(struct crat_subtype_computeunit)); 1720 1721 /* Fill in subtype header data */ 1722 sub_type_hdr->type = CRAT_SUBTYPE_COMPUTEUNIT_AFFINITY; 1723 sub_type_hdr->length = sizeof(struct crat_subtype_computeunit); 1724 sub_type_hdr->flags = CRAT_SUBTYPE_FLAGS_ENABLED; 1725 1726 cpumask = cpumask_of_node(numa_node_id); 1727 1728 /* Fill in CU data */ 1729 sub_type_hdr->flags |= CRAT_CU_FLAGS_CPU_PRESENT; 1730 sub_type_hdr->proximity_domain = proximity_domain; 1731 sub_type_hdr->processor_id_low = kfd_numa_node_to_apic_id(numa_node_id); 1732 if (sub_type_hdr->processor_id_low == -1) 1733 return -EINVAL; 1734 1735 sub_type_hdr->num_cpu_cores = cpumask_weight(cpumask); 1736 1737 return 0; 1738 } 1739 1740 /* kfd_fill_mem_info_for_cpu - Fill in Memory info for the given CPU NUMA node 1741 * 1742 * @numa_node_id: CPU NUMA node id 1743 * @avail_size: Available size in the memory 1744 * @sub_type_hdr: Memory into which compute info will be filled in 1745 * 1746 * Return 0 if successful else return -ve value 1747 */ 1748 static int kfd_fill_mem_info_for_cpu(int numa_node_id, int *avail_size, 1749 int proximity_domain, 1750 struct crat_subtype_memory *sub_type_hdr) 1751 { 1752 uint64_t mem_in_bytes = 0; 1753 pg_data_t *pgdat; 1754 int zone_type; 1755 1756 *avail_size -= sizeof(struct crat_subtype_memory); 1757 if (*avail_size < 0) 1758 return -ENOMEM; 1759 1760 memset(sub_type_hdr, 0, sizeof(struct crat_subtype_memory)); 1761 1762 /* Fill in subtype header data */ 1763 sub_type_hdr->type = CRAT_SUBTYPE_MEMORY_AFFINITY; 1764 sub_type_hdr->length = sizeof(struct crat_subtype_memory); 1765 sub_type_hdr->flags = CRAT_SUBTYPE_FLAGS_ENABLED; 1766 1767 /* Fill in Memory Subunit data */ 1768 1769 /* Unlike si_meminfo, si_meminfo_node is not exported. So 1770 * the following lines are duplicated from si_meminfo_node 1771 * function 1772 */ 1773 pgdat = NODE_DATA(numa_node_id); 1774 for (zone_type = 0; zone_type < MAX_NR_ZONES; zone_type++) 1775 mem_in_bytes += zone_managed_pages(&pgdat->node_zones[zone_type]); 1776 mem_in_bytes <<= PAGE_SHIFT; 1777 1778 sub_type_hdr->length_low = lower_32_bits(mem_in_bytes); 1779 sub_type_hdr->length_high = upper_32_bits(mem_in_bytes); 1780 sub_type_hdr->proximity_domain = proximity_domain; 1781 1782 return 0; 1783 } 1784 1785 #ifdef CONFIG_X86_64 1786 static int kfd_fill_iolink_info_for_cpu(int numa_node_id, int *avail_size, 1787 uint32_t *num_entries, 1788 struct crat_subtype_iolink *sub_type_hdr) 1789 { 1790 int nid; 1791 struct cpuinfo_x86 *c = &cpu_data(0); 1792 uint8_t link_type; 1793 1794 if (c->x86_vendor == X86_VENDOR_AMD) 1795 link_type = CRAT_IOLINK_TYPE_HYPERTRANSPORT; 1796 else 1797 link_type = CRAT_IOLINK_TYPE_QPI_1_1; 1798 1799 *num_entries = 0; 1800 1801 /* Create IO links from this node to other CPU nodes */ 1802 for_each_online_node(nid) { 1803 if (nid == numa_node_id) /* node itself */ 1804 continue; 1805 1806 *avail_size -= sizeof(struct crat_subtype_iolink); 1807 if (*avail_size < 0) 1808 return -ENOMEM; 1809 1810 memset(sub_type_hdr, 0, sizeof(struct crat_subtype_iolink)); 1811 1812 /* Fill in subtype header data */ 1813 sub_type_hdr->type = CRAT_SUBTYPE_IOLINK_AFFINITY; 1814 sub_type_hdr->length = sizeof(struct crat_subtype_iolink); 1815 sub_type_hdr->flags = CRAT_SUBTYPE_FLAGS_ENABLED; 1816 1817 /* Fill in IO link data */ 1818 sub_type_hdr->proximity_domain_from = numa_node_id; 1819 sub_type_hdr->proximity_domain_to = nid; 1820 sub_type_hdr->io_interface_type = link_type; 1821 1822 (*num_entries)++; 1823 sub_type_hdr++; 1824 } 1825 1826 return 0; 1827 } 1828 #endif 1829 1830 /* kfd_create_vcrat_image_cpu - Create Virtual CRAT for CPU 1831 * 1832 * @pcrat_image: Fill in VCRAT for CPU 1833 * @size: [IN] allocated size of crat_image. 1834 * [OUT] actual size of data filled in crat_image 1835 */ 1836 static int kfd_create_vcrat_image_cpu(void *pcrat_image, size_t *size) 1837 { 1838 struct crat_header *crat_table = (struct crat_header *)pcrat_image; 1839 struct acpi_table_header *acpi_table; 1840 acpi_status status; 1841 struct crat_subtype_generic *sub_type_hdr; 1842 int avail_size = *size; 1843 int numa_node_id; 1844 #ifdef CONFIG_X86_64 1845 uint32_t entries = 0; 1846 #endif 1847 int ret = 0; 1848 1849 if (!pcrat_image) 1850 return -EINVAL; 1851 1852 /* Fill in CRAT Header. 1853 * Modify length and total_entries as subunits are added. 1854 */ 1855 avail_size -= sizeof(struct crat_header); 1856 if (avail_size < 0) 1857 return -ENOMEM; 1858 1859 memset(crat_table, 0, sizeof(struct crat_header)); 1860 memcpy(&crat_table->signature, CRAT_SIGNATURE, 1861 sizeof(crat_table->signature)); 1862 crat_table->length = sizeof(struct crat_header); 1863 1864 status = acpi_get_table("DSDT", 0, &acpi_table); 1865 if (status != AE_OK) 1866 pr_warn("DSDT table not found for OEM information\n"); 1867 else { 1868 crat_table->oem_revision = acpi_table->revision; 1869 memcpy(crat_table->oem_id, acpi_table->oem_id, 1870 CRAT_OEMID_LENGTH); 1871 memcpy(crat_table->oem_table_id, acpi_table->oem_table_id, 1872 CRAT_OEMTABLEID_LENGTH); 1873 acpi_put_table(acpi_table); 1874 } 1875 crat_table->total_entries = 0; 1876 crat_table->num_domains = 0; 1877 1878 sub_type_hdr = (struct crat_subtype_generic *)(crat_table+1); 1879 1880 for_each_online_node(numa_node_id) { 1881 if (kfd_numa_node_to_apic_id(numa_node_id) == -1) 1882 continue; 1883 1884 /* Fill in Subtype: Compute Unit */ 1885 ret = kfd_fill_cu_for_cpu(numa_node_id, &avail_size, 1886 crat_table->num_domains, 1887 (struct crat_subtype_computeunit *)sub_type_hdr); 1888 if (ret < 0) 1889 return ret; 1890 crat_table->length += sub_type_hdr->length; 1891 crat_table->total_entries++; 1892 1893 sub_type_hdr = (typeof(sub_type_hdr))((char *)sub_type_hdr + 1894 sub_type_hdr->length); 1895 1896 /* Fill in Subtype: Memory */ 1897 ret = kfd_fill_mem_info_for_cpu(numa_node_id, &avail_size, 1898 crat_table->num_domains, 1899 (struct crat_subtype_memory *)sub_type_hdr); 1900 if (ret < 0) 1901 return ret; 1902 crat_table->length += sub_type_hdr->length; 1903 crat_table->total_entries++; 1904 1905 sub_type_hdr = (typeof(sub_type_hdr))((char *)sub_type_hdr + 1906 sub_type_hdr->length); 1907 1908 /* Fill in Subtype: IO Link */ 1909 #ifdef CONFIG_X86_64 1910 ret = kfd_fill_iolink_info_for_cpu(numa_node_id, &avail_size, 1911 &entries, 1912 (struct crat_subtype_iolink *)sub_type_hdr); 1913 if (ret < 0) 1914 return ret; 1915 1916 if (entries) { 1917 crat_table->length += (sub_type_hdr->length * entries); 1918 crat_table->total_entries += entries; 1919 1920 sub_type_hdr = (typeof(sub_type_hdr))((char *)sub_type_hdr + 1921 sub_type_hdr->length * entries); 1922 } 1923 #else 1924 pr_info("IO link not available for non x86 platforms\n"); 1925 #endif 1926 1927 crat_table->num_domains++; 1928 } 1929 1930 /* TODO: Add cache Subtype for CPU. 1931 * Currently, CPU cache information is available in function 1932 * detect_cache_attributes(cpu) defined in the file 1933 * ./arch/x86/kernel/cpu/intel_cacheinfo.c. This function is not 1934 * exported and to get the same information the code needs to be 1935 * duplicated. 1936 */ 1937 1938 *size = crat_table->length; 1939 pr_info("Virtual CRAT table created for CPU\n"); 1940 1941 return 0; 1942 } 1943 1944 static int kfd_fill_gpu_memory_affinity(int *avail_size, 1945 struct kfd_node *kdev, uint8_t type, uint64_t size, 1946 struct crat_subtype_memory *sub_type_hdr, 1947 uint32_t proximity_domain, 1948 const struct kfd_local_mem_info *local_mem_info) 1949 { 1950 *avail_size -= sizeof(struct crat_subtype_memory); 1951 if (*avail_size < 0) 1952 return -ENOMEM; 1953 1954 memset((void *)sub_type_hdr, 0, sizeof(struct crat_subtype_memory)); 1955 sub_type_hdr->type = CRAT_SUBTYPE_MEMORY_AFFINITY; 1956 sub_type_hdr->length = sizeof(struct crat_subtype_memory); 1957 sub_type_hdr->flags |= CRAT_SUBTYPE_FLAGS_ENABLED; 1958 1959 sub_type_hdr->proximity_domain = proximity_domain; 1960 1961 pr_debug("Fill gpu memory affinity - type 0x%x size 0x%llx\n", 1962 type, size); 1963 1964 sub_type_hdr->length_low = lower_32_bits(size); 1965 sub_type_hdr->length_high = upper_32_bits(size); 1966 1967 sub_type_hdr->width = local_mem_info->vram_width; 1968 sub_type_hdr->visibility_type = type; 1969 1970 return 0; 1971 } 1972 1973 #ifdef CONFIG_ACPI_NUMA 1974 static void kfd_find_numa_node_in_srat(struct kfd_node *kdev) 1975 { 1976 struct acpi_table_header *table_header = NULL; 1977 struct acpi_subtable_header *sub_header = NULL; 1978 unsigned long table_end, subtable_len; 1979 u32 pci_id = pci_domain_nr(kdev->adev->pdev->bus) << 16 | 1980 pci_dev_id(kdev->adev->pdev); 1981 u32 bdf; 1982 acpi_status status; 1983 struct acpi_srat_cpu_affinity *cpu; 1984 struct acpi_srat_generic_affinity *gpu; 1985 int pxm = 0, max_pxm = 0; 1986 int numa_node = NUMA_NO_NODE; 1987 bool found = false; 1988 1989 /* Fetch the SRAT table from ACPI */ 1990 status = acpi_get_table(ACPI_SIG_SRAT, 0, &table_header); 1991 if (status == AE_NOT_FOUND) { 1992 pr_warn("SRAT table not found\n"); 1993 return; 1994 } else if (ACPI_FAILURE(status)) { 1995 const char *err = acpi_format_exception(status); 1996 pr_err("SRAT table error: %s\n", err); 1997 return; 1998 } 1999 2000 table_end = (unsigned long)table_header + table_header->length; 2001 2002 /* Parse all entries looking for a match. */ 2003 sub_header = (struct acpi_subtable_header *) 2004 ((unsigned long)table_header + 2005 sizeof(struct acpi_table_srat)); 2006 subtable_len = sub_header->length; 2007 2008 while (((unsigned long)sub_header) + subtable_len < table_end) { 2009 /* 2010 * If length is 0, break from this loop to avoid 2011 * infinite loop. 2012 */ 2013 if (subtable_len == 0) { 2014 pr_err("SRAT invalid zero length\n"); 2015 break; 2016 } 2017 2018 switch (sub_header->type) { 2019 case ACPI_SRAT_TYPE_CPU_AFFINITY: 2020 cpu = (struct acpi_srat_cpu_affinity *)sub_header; 2021 pxm = *((u32 *)cpu->proximity_domain_hi) << 8 | 2022 cpu->proximity_domain_lo; 2023 if (pxm > max_pxm) 2024 max_pxm = pxm; 2025 break; 2026 case ACPI_SRAT_TYPE_GENERIC_AFFINITY: 2027 gpu = (struct acpi_srat_generic_affinity *)sub_header; 2028 bdf = *((u16 *)(&gpu->device_handle[0])) << 16 | 2029 *((u16 *)(&gpu->device_handle[2])); 2030 if (bdf == pci_id) { 2031 found = true; 2032 numa_node = pxm_to_node(gpu->proximity_domain); 2033 } 2034 break; 2035 default: 2036 break; 2037 } 2038 2039 if (found) 2040 break; 2041 2042 sub_header = (struct acpi_subtable_header *) 2043 ((unsigned long)sub_header + subtable_len); 2044 subtable_len = sub_header->length; 2045 } 2046 2047 acpi_put_table(table_header); 2048 2049 /* Workaround bad cpu-gpu binding case */ 2050 if (found && (numa_node < 0 || 2051 numa_node > pxm_to_node(max_pxm))) 2052 numa_node = 0; 2053 2054 if (numa_node != NUMA_NO_NODE) 2055 set_dev_node(&kdev->adev->pdev->dev, numa_node); 2056 } 2057 #endif 2058 2059 #define KFD_CRAT_INTRA_SOCKET_WEIGHT 13 2060 #define KFD_CRAT_XGMI_WEIGHT 15 2061 2062 /* kfd_fill_gpu_direct_io_link - Fill in direct io link from GPU 2063 * to its NUMA node 2064 * @avail_size: Available size in the memory 2065 * @kdev - [IN] GPU device 2066 * @sub_type_hdr: Memory into which io link info will be filled in 2067 * @proximity_domain - proximity domain of the GPU node 2068 * 2069 * Return 0 if successful else return -ve value 2070 */ 2071 static int kfd_fill_gpu_direct_io_link_to_cpu(int *avail_size, 2072 struct kfd_node *kdev, 2073 struct crat_subtype_iolink *sub_type_hdr, 2074 uint32_t proximity_domain) 2075 { 2076 *avail_size -= sizeof(struct crat_subtype_iolink); 2077 if (*avail_size < 0) 2078 return -ENOMEM; 2079 2080 memset((void *)sub_type_hdr, 0, sizeof(struct crat_subtype_iolink)); 2081 2082 /* Fill in subtype header data */ 2083 sub_type_hdr->type = CRAT_SUBTYPE_IOLINK_AFFINITY; 2084 sub_type_hdr->length = sizeof(struct crat_subtype_iolink); 2085 sub_type_hdr->flags |= CRAT_SUBTYPE_FLAGS_ENABLED; 2086 if (kfd_dev_is_large_bar(kdev)) 2087 sub_type_hdr->flags |= CRAT_IOLINK_FLAGS_BI_DIRECTIONAL; 2088 2089 /* Fill in IOLINK subtype. 2090 * TODO: Fill-in other fields of iolink subtype 2091 */ 2092 if (kdev->adev->gmc.xgmi.connected_to_cpu || 2093 (KFD_GC_VERSION(kdev) == IP_VERSION(9, 4, 3) && 2094 kdev->adev->smuio.funcs->get_pkg_type(kdev->adev) == 2095 AMDGPU_PKG_TYPE_APU)) { 2096 bool ext_cpu = KFD_GC_VERSION(kdev) != IP_VERSION(9, 4, 3); 2097 int mem_bw = 819200, weight = ext_cpu ? KFD_CRAT_XGMI_WEIGHT : 2098 KFD_CRAT_INTRA_SOCKET_WEIGHT; 2099 uint32_t bandwidth = ext_cpu ? amdgpu_amdkfd_get_xgmi_bandwidth_mbytes( 2100 kdev->adev, NULL, true) : mem_bw; 2101 2102 /* 2103 * with host gpu xgmi link, host can access gpu memory whether 2104 * or not pcie bar type is large, so always create bidirectional 2105 * io link. 2106 */ 2107 sub_type_hdr->flags |= CRAT_IOLINK_FLAGS_BI_DIRECTIONAL; 2108 sub_type_hdr->io_interface_type = CRAT_IOLINK_TYPE_XGMI; 2109 sub_type_hdr->weight_xgmi = weight; 2110 sub_type_hdr->minimum_bandwidth_mbs = bandwidth; 2111 sub_type_hdr->maximum_bandwidth_mbs = bandwidth; 2112 } else { 2113 sub_type_hdr->io_interface_type = CRAT_IOLINK_TYPE_PCIEXPRESS; 2114 sub_type_hdr->minimum_bandwidth_mbs = 2115 amdgpu_amdkfd_get_pcie_bandwidth_mbytes(kdev->adev, true); 2116 sub_type_hdr->maximum_bandwidth_mbs = 2117 amdgpu_amdkfd_get_pcie_bandwidth_mbytes(kdev->adev, false); 2118 } 2119 2120 sub_type_hdr->proximity_domain_from = proximity_domain; 2121 2122 #ifdef CONFIG_ACPI_NUMA 2123 if (kdev->adev->pdev->dev.numa_node == NUMA_NO_NODE && 2124 num_possible_nodes() > 1) 2125 kfd_find_numa_node_in_srat(kdev); 2126 #endif 2127 #ifdef CONFIG_NUMA 2128 if (kdev->adev->pdev->dev.numa_node == NUMA_NO_NODE) 2129 sub_type_hdr->proximity_domain_to = 0; 2130 else 2131 sub_type_hdr->proximity_domain_to = kdev->adev->pdev->dev.numa_node; 2132 #else 2133 sub_type_hdr->proximity_domain_to = 0; 2134 #endif 2135 return 0; 2136 } 2137 2138 static int kfd_fill_gpu_xgmi_link_to_gpu(int *avail_size, 2139 struct kfd_node *kdev, 2140 struct kfd_node *peer_kdev, 2141 struct crat_subtype_iolink *sub_type_hdr, 2142 uint32_t proximity_domain_from, 2143 uint32_t proximity_domain_to) 2144 { 2145 bool use_ta_info = kdev->kfd->num_nodes == 1; 2146 2147 *avail_size -= sizeof(struct crat_subtype_iolink); 2148 if (*avail_size < 0) 2149 return -ENOMEM; 2150 2151 memset((void *)sub_type_hdr, 0, sizeof(struct crat_subtype_iolink)); 2152 2153 sub_type_hdr->type = CRAT_SUBTYPE_IOLINK_AFFINITY; 2154 sub_type_hdr->length = sizeof(struct crat_subtype_iolink); 2155 sub_type_hdr->flags |= CRAT_SUBTYPE_FLAGS_ENABLED | 2156 CRAT_IOLINK_FLAGS_BI_DIRECTIONAL; 2157 2158 sub_type_hdr->io_interface_type = CRAT_IOLINK_TYPE_XGMI; 2159 sub_type_hdr->proximity_domain_from = proximity_domain_from; 2160 sub_type_hdr->proximity_domain_to = proximity_domain_to; 2161 2162 if (use_ta_info) { 2163 sub_type_hdr->weight_xgmi = KFD_CRAT_XGMI_WEIGHT * 2164 amdgpu_amdkfd_get_xgmi_hops_count(kdev->adev, peer_kdev->adev); 2165 sub_type_hdr->maximum_bandwidth_mbs = 2166 amdgpu_amdkfd_get_xgmi_bandwidth_mbytes(kdev->adev, 2167 peer_kdev->adev, false); 2168 sub_type_hdr->minimum_bandwidth_mbs = sub_type_hdr->maximum_bandwidth_mbs ? 2169 amdgpu_amdkfd_get_xgmi_bandwidth_mbytes(kdev->adev, NULL, true) : 0; 2170 } else { 2171 bool is_single_hop = kdev->kfd == peer_kdev->kfd; 2172 int weight = is_single_hop ? KFD_CRAT_INTRA_SOCKET_WEIGHT : 2173 (2 * KFD_CRAT_INTRA_SOCKET_WEIGHT) + KFD_CRAT_XGMI_WEIGHT; 2174 int mem_bw = 819200; 2175 2176 sub_type_hdr->weight_xgmi = weight; 2177 sub_type_hdr->maximum_bandwidth_mbs = is_single_hop ? mem_bw : 0; 2178 sub_type_hdr->minimum_bandwidth_mbs = is_single_hop ? mem_bw : 0; 2179 } 2180 2181 return 0; 2182 } 2183 2184 /* kfd_create_vcrat_image_gpu - Create Virtual CRAT for CPU 2185 * 2186 * @pcrat_image: Fill in VCRAT for GPU 2187 * @size: [IN] allocated size of crat_image. 2188 * [OUT] actual size of data filled in crat_image 2189 */ 2190 static int kfd_create_vcrat_image_gpu(void *pcrat_image, 2191 size_t *size, struct kfd_node *kdev, 2192 uint32_t proximity_domain) 2193 { 2194 struct crat_header *crat_table = (struct crat_header *)pcrat_image; 2195 struct amdgpu_gfx_config *gfx_info = &kdev->adev->gfx.config; 2196 struct amdgpu_cu_info *cu_info = &kdev->adev->gfx.cu_info; 2197 struct crat_subtype_generic *sub_type_hdr; 2198 struct kfd_local_mem_info local_mem_info; 2199 struct kfd_topology_device *peer_dev; 2200 struct crat_subtype_computeunit *cu; 2201 int avail_size = *size; 2202 uint32_t total_num_of_cu; 2203 uint32_t nid = 0; 2204 int ret = 0; 2205 2206 if (!pcrat_image || avail_size < VCRAT_SIZE_FOR_GPU) 2207 return -EINVAL; 2208 2209 /* Fill the CRAT Header. 2210 * Modify length and total_entries as subunits are added. 2211 */ 2212 avail_size -= sizeof(struct crat_header); 2213 if (avail_size < 0) 2214 return -ENOMEM; 2215 2216 memset(crat_table, 0, sizeof(struct crat_header)); 2217 2218 memcpy(&crat_table->signature, CRAT_SIGNATURE, 2219 sizeof(crat_table->signature)); 2220 /* Change length as we add more subtypes*/ 2221 crat_table->length = sizeof(struct crat_header); 2222 crat_table->num_domains = 1; 2223 crat_table->total_entries = 0; 2224 2225 /* Fill in Subtype: Compute Unit 2226 * First fill in the sub type header and then sub type data 2227 */ 2228 avail_size -= sizeof(struct crat_subtype_computeunit); 2229 if (avail_size < 0) 2230 return -ENOMEM; 2231 2232 sub_type_hdr = (struct crat_subtype_generic *)(crat_table + 1); 2233 memset(sub_type_hdr, 0, sizeof(struct crat_subtype_computeunit)); 2234 2235 sub_type_hdr->type = CRAT_SUBTYPE_COMPUTEUNIT_AFFINITY; 2236 sub_type_hdr->length = sizeof(struct crat_subtype_computeunit); 2237 sub_type_hdr->flags = CRAT_SUBTYPE_FLAGS_ENABLED; 2238 2239 /* Fill CU subtype data */ 2240 cu = (struct crat_subtype_computeunit *)sub_type_hdr; 2241 cu->flags |= CRAT_CU_FLAGS_GPU_PRESENT; 2242 cu->proximity_domain = proximity_domain; 2243 2244 cu->num_simd_per_cu = cu_info->simd_per_cu; 2245 cu->num_simd_cores = cu_info->simd_per_cu * 2246 (cu_info->number / kdev->kfd->num_nodes); 2247 cu->max_waves_simd = cu_info->max_waves_per_simd; 2248 2249 cu->wave_front_size = cu_info->wave_front_size; 2250 cu->array_count = gfx_info->max_sh_per_se * 2251 gfx_info->max_shader_engines; 2252 total_num_of_cu = (cu->array_count * gfx_info->max_cu_per_sh); 2253 cu->processor_id_low = get_and_inc_gpu_processor_id(total_num_of_cu); 2254 cu->num_cu_per_array = gfx_info->max_cu_per_sh; 2255 cu->max_slots_scatch_cu = cu_info->max_scratch_slots_per_cu; 2256 cu->num_banks = gfx_info->max_shader_engines; 2257 cu->lds_size_in_kb = cu_info->lds_size; 2258 2259 cu->hsa_capability = 0; 2260 2261 crat_table->length += sub_type_hdr->length; 2262 crat_table->total_entries++; 2263 2264 /* Fill in Subtype: Memory. Only on systems with large BAR (no 2265 * private FB), report memory as public. On other systems 2266 * report the total FB size (public+private) as a single 2267 * private heap. 2268 */ 2269 local_mem_info = kdev->local_mem_info; 2270 sub_type_hdr = (typeof(sub_type_hdr))((char *)sub_type_hdr + 2271 sub_type_hdr->length); 2272 2273 if (kdev->adev->debug_largebar) 2274 local_mem_info.local_mem_size_private = 0; 2275 2276 if (local_mem_info.local_mem_size_private == 0) 2277 ret = kfd_fill_gpu_memory_affinity(&avail_size, 2278 kdev, HSA_MEM_HEAP_TYPE_FB_PUBLIC, 2279 local_mem_info.local_mem_size_public, 2280 (struct crat_subtype_memory *)sub_type_hdr, 2281 proximity_domain, 2282 &local_mem_info); 2283 else 2284 ret = kfd_fill_gpu_memory_affinity(&avail_size, 2285 kdev, HSA_MEM_HEAP_TYPE_FB_PRIVATE, 2286 local_mem_info.local_mem_size_public + 2287 local_mem_info.local_mem_size_private, 2288 (struct crat_subtype_memory *)sub_type_hdr, 2289 proximity_domain, 2290 &local_mem_info); 2291 if (ret < 0) 2292 return ret; 2293 2294 crat_table->length += sizeof(struct crat_subtype_memory); 2295 crat_table->total_entries++; 2296 2297 /* Fill in Subtype: IO_LINKS 2298 * Only direct links are added here which is Link from GPU to 2299 * its NUMA node. Indirect links are added by userspace. 2300 */ 2301 sub_type_hdr = (typeof(sub_type_hdr))((char *)sub_type_hdr + 2302 sub_type_hdr->length); 2303 ret = kfd_fill_gpu_direct_io_link_to_cpu(&avail_size, kdev, 2304 (struct crat_subtype_iolink *)sub_type_hdr, proximity_domain); 2305 2306 if (ret < 0) 2307 return ret; 2308 2309 crat_table->length += sub_type_hdr->length; 2310 crat_table->total_entries++; 2311 2312 2313 /* Fill in Subtype: IO_LINKS 2314 * Direct links from GPU to other GPUs through xGMI. 2315 * We will loop GPUs that already be processed (with lower value 2316 * of proximity_domain), add the link for the GPUs with same 2317 * hive id (from this GPU to other GPU) . The reversed iolink 2318 * (from other GPU to this GPU) will be added 2319 * in kfd_parse_subtype_iolink. 2320 */ 2321 if (kdev->kfd->hive_id) { 2322 for (nid = 0; nid < proximity_domain; ++nid) { 2323 peer_dev = kfd_topology_device_by_proximity_domain_no_lock(nid); 2324 if (!peer_dev->gpu) 2325 continue; 2326 if (peer_dev->gpu->kfd->hive_id != kdev->kfd->hive_id) 2327 continue; 2328 sub_type_hdr = (typeof(sub_type_hdr))( 2329 (char *)sub_type_hdr + 2330 sizeof(struct crat_subtype_iolink)); 2331 ret = kfd_fill_gpu_xgmi_link_to_gpu( 2332 &avail_size, kdev, peer_dev->gpu, 2333 (struct crat_subtype_iolink *)sub_type_hdr, 2334 proximity_domain, nid); 2335 if (ret < 0) 2336 return ret; 2337 crat_table->length += sub_type_hdr->length; 2338 crat_table->total_entries++; 2339 } 2340 } 2341 *size = crat_table->length; 2342 pr_info("Virtual CRAT table created for GPU\n"); 2343 2344 return ret; 2345 } 2346 2347 /* kfd_create_crat_image_virtual - Allocates memory for CRAT image and 2348 * creates a Virtual CRAT (VCRAT) image 2349 * 2350 * NOTE: Call kfd_destroy_crat_image to free CRAT image memory 2351 * 2352 * @crat_image: VCRAT image created because ACPI does not have a 2353 * CRAT for this device 2354 * @size: [OUT] size of virtual crat_image 2355 * @flags: COMPUTE_UNIT_CPU - Create VCRAT for CPU device 2356 * COMPUTE_UNIT_GPU - Create VCRAT for GPU 2357 * (COMPUTE_UNIT_CPU | COMPUTE_UNIT_GPU) - Create VCRAT for APU 2358 * -- this option is not currently implemented. 2359 * The assumption is that all AMD APUs will have CRAT 2360 * @kdev: Valid kfd_node required if flags contain COMPUTE_UNIT_GPU 2361 * 2362 * Return 0 if successful else return -ve value 2363 */ 2364 int kfd_create_crat_image_virtual(void **crat_image, size_t *size, 2365 int flags, struct kfd_node *kdev, 2366 uint32_t proximity_domain) 2367 { 2368 void *pcrat_image = NULL; 2369 int ret = 0, num_nodes; 2370 size_t dyn_size; 2371 2372 if (!crat_image) 2373 return -EINVAL; 2374 2375 *crat_image = NULL; 2376 2377 /* Allocate the CPU Virtual CRAT size based on the number of online 2378 * nodes. Allocate VCRAT_SIZE_FOR_GPU for GPU virtual CRAT image. 2379 * This should cover all the current conditions. A check is put not 2380 * to overwrite beyond allocated size for GPUs 2381 */ 2382 switch (flags) { 2383 case COMPUTE_UNIT_CPU: 2384 num_nodes = num_online_nodes(); 2385 dyn_size = sizeof(struct crat_header) + 2386 num_nodes * (sizeof(struct crat_subtype_computeunit) + 2387 sizeof(struct crat_subtype_memory) + 2388 (num_nodes - 1) * sizeof(struct crat_subtype_iolink)); 2389 pcrat_image = kvmalloc(dyn_size, GFP_KERNEL); 2390 if (!pcrat_image) 2391 return -ENOMEM; 2392 *size = dyn_size; 2393 pr_debug("CRAT size is %ld", dyn_size); 2394 ret = kfd_create_vcrat_image_cpu(pcrat_image, size); 2395 break; 2396 case COMPUTE_UNIT_GPU: 2397 if (!kdev) 2398 return -EINVAL; 2399 pcrat_image = kvmalloc(VCRAT_SIZE_FOR_GPU, GFP_KERNEL); 2400 if (!pcrat_image) 2401 return -ENOMEM; 2402 *size = VCRAT_SIZE_FOR_GPU; 2403 ret = kfd_create_vcrat_image_gpu(pcrat_image, size, kdev, 2404 proximity_domain); 2405 break; 2406 case (COMPUTE_UNIT_CPU | COMPUTE_UNIT_GPU): 2407 /* TODO: */ 2408 ret = -EINVAL; 2409 pr_err("VCRAT not implemented for APU\n"); 2410 break; 2411 default: 2412 ret = -EINVAL; 2413 } 2414 2415 if (!ret) 2416 *crat_image = pcrat_image; 2417 else 2418 kvfree(pcrat_image); 2419 2420 return ret; 2421 } 2422 2423 2424 /* kfd_destroy_crat_image 2425 * 2426 * @crat_image: [IN] - crat_image from kfd_create_crat_image_xxx(..) 2427 * 2428 */ 2429 void kfd_destroy_crat_image(void *crat_image) 2430 { 2431 kvfree(crat_image); 2432 } 2433