1 // SPDX-License-Identifier: MIT 2 /* 3 * Copyright 2014 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 "amdgpu_amdkfd.h" 25 #include "amd_pcie.h" 26 #include "amd_shared.h" 27 28 #include "amdgpu.h" 29 #include "amdgpu_gfx.h" 30 #include "amdgpu_dma_buf.h" 31 #include <linux/module.h> 32 #include <linux/dma-buf.h> 33 #include "amdgpu_xgmi.h" 34 #include <uapi/linux/kfd_ioctl.h> 35 #include "amdgpu_ras.h" 36 #include "amdgpu_umc.h" 37 #include "amdgpu_reset.h" 38 39 /* Total memory size in system memory and all GPU VRAM. Used to 40 * estimate worst case amount of memory to reserve for page tables 41 */ 42 uint64_t amdgpu_amdkfd_total_mem_size; 43 44 static bool kfd_initialized; 45 46 int amdgpu_amdkfd_init(void) 47 { 48 struct sysinfo si; 49 int ret; 50 51 si_meminfo(&si); 52 amdgpu_amdkfd_total_mem_size = si.freeram - si.freehigh; 53 amdgpu_amdkfd_total_mem_size *= si.mem_unit; 54 55 ret = kgd2kfd_init(); 56 amdgpu_amdkfd_gpuvm_init_mem_limits(); 57 kfd_initialized = !ret; 58 59 return ret; 60 } 61 62 void amdgpu_amdkfd_fini(void) 63 { 64 if (kfd_initialized) { 65 kgd2kfd_exit(); 66 kfd_initialized = false; 67 } 68 } 69 70 void amdgpu_amdkfd_device_probe(struct amdgpu_device *adev) 71 { 72 bool vf = amdgpu_sriov_vf(adev); 73 74 if (!kfd_initialized) 75 return; 76 77 adev->kfd.dev = kgd2kfd_probe(adev, vf); 78 } 79 80 /** 81 * amdgpu_doorbell_get_kfd_info - Report doorbell configuration required to 82 * setup amdkfd 83 * 84 * @adev: amdgpu_device pointer 85 * @aperture_base: output returning doorbell aperture base physical address 86 * @aperture_size: output returning doorbell aperture size in bytes 87 * @start_offset: output returning # of doorbell bytes reserved for amdgpu. 88 * 89 * amdgpu and amdkfd share the doorbell aperture. amdgpu sets it up, 90 * takes doorbells required for its own rings and reports the setup to amdkfd. 91 * amdgpu reserved doorbells are at the start of the doorbell aperture. 92 */ 93 static void amdgpu_doorbell_get_kfd_info(struct amdgpu_device *adev, 94 phys_addr_t *aperture_base, 95 size_t *aperture_size, 96 size_t *start_offset) 97 { 98 /* 99 * The first num_doorbells are used by amdgpu. 100 * amdkfd takes whatever's left in the aperture. 101 */ 102 if (adev->enable_mes) { 103 /* 104 * With MES enabled, we only need to initialize 105 * the base address. The size and offset are 106 * not initialized as AMDGPU manages the whole 107 * doorbell space. 108 */ 109 *aperture_base = adev->doorbell.base; 110 *aperture_size = 0; 111 *start_offset = 0; 112 } else if (adev->doorbell.size > adev->doorbell.num_doorbells * 113 sizeof(u32)) { 114 *aperture_base = adev->doorbell.base; 115 *aperture_size = adev->doorbell.size; 116 *start_offset = adev->doorbell.num_doorbells * sizeof(u32); 117 } else { 118 *aperture_base = 0; 119 *aperture_size = 0; 120 *start_offset = 0; 121 } 122 } 123 124 125 static void amdgpu_amdkfd_reset_work(struct work_struct *work) 126 { 127 struct amdgpu_device *adev = container_of(work, struct amdgpu_device, 128 kfd.reset_work); 129 130 struct amdgpu_reset_context reset_context; 131 132 memset(&reset_context, 0, sizeof(reset_context)); 133 134 reset_context.method = AMD_RESET_METHOD_NONE; 135 reset_context.reset_req_dev = adev; 136 clear_bit(AMDGPU_NEED_FULL_RESET, &reset_context.flags); 137 138 amdgpu_device_gpu_recover(adev, NULL, &reset_context); 139 } 140 141 void amdgpu_amdkfd_device_init(struct amdgpu_device *adev) 142 { 143 int i; 144 int last_valid_bit; 145 146 if (adev->kfd.dev) { 147 struct kgd2kfd_shared_resources gpu_resources = { 148 .compute_vmid_bitmap = 149 ((1 << AMDGPU_NUM_VMID) - 1) - 150 ((1 << adev->vm_manager.first_kfd_vmid) - 1), 151 .num_pipe_per_mec = adev->gfx.mec.num_pipe_per_mec, 152 .num_queue_per_pipe = adev->gfx.mec.num_queue_per_pipe, 153 .gpuvm_size = min(adev->vm_manager.max_pfn 154 << AMDGPU_GPU_PAGE_SHIFT, 155 AMDGPU_GMC_HOLE_START), 156 .drm_render_minor = adev_to_drm(adev)->render->index, 157 .sdma_doorbell_idx = adev->doorbell_index.sdma_engine, 158 .enable_mes = adev->enable_mes, 159 }; 160 161 /* this is going to have a few of the MSBs set that we need to 162 * clear 163 */ 164 bitmap_complement(gpu_resources.cp_queue_bitmap, 165 adev->gfx.mec.queue_bitmap, 166 KGD_MAX_QUEUES); 167 168 /* According to linux/bitmap.h we shouldn't use bitmap_clear if 169 * nbits is not compile time constant 170 */ 171 last_valid_bit = 1 /* only first MEC can have compute queues */ 172 * adev->gfx.mec.num_pipe_per_mec 173 * adev->gfx.mec.num_queue_per_pipe; 174 for (i = last_valid_bit; i < KGD_MAX_QUEUES; ++i) 175 clear_bit(i, gpu_resources.cp_queue_bitmap); 176 177 amdgpu_doorbell_get_kfd_info(adev, 178 &gpu_resources.doorbell_physical_address, 179 &gpu_resources.doorbell_aperture_size, 180 &gpu_resources.doorbell_start_offset); 181 182 /* Since SOC15, BIF starts to statically use the 183 * lower 12 bits of doorbell addresses for routing 184 * based on settings in registers like 185 * SDMA0_DOORBELL_RANGE etc.. 186 * In order to route a doorbell to CP engine, the lower 187 * 12 bits of its address has to be outside the range 188 * set for SDMA, VCN, and IH blocks. 189 */ 190 if (adev->asic_type >= CHIP_VEGA10) { 191 gpu_resources.non_cp_doorbells_start = 192 adev->doorbell_index.first_non_cp; 193 gpu_resources.non_cp_doorbells_end = 194 adev->doorbell_index.last_non_cp; 195 } 196 197 adev->kfd.init_complete = kgd2kfd_device_init(adev->kfd.dev, 198 adev_to_drm(adev), &gpu_resources); 199 200 amdgpu_amdkfd_total_mem_size += adev->gmc.real_vram_size; 201 202 INIT_WORK(&adev->kfd.reset_work, amdgpu_amdkfd_reset_work); 203 } 204 } 205 206 void amdgpu_amdkfd_device_fini_sw(struct amdgpu_device *adev) 207 { 208 if (adev->kfd.dev) { 209 kgd2kfd_device_exit(adev->kfd.dev); 210 adev->kfd.dev = NULL; 211 amdgpu_amdkfd_total_mem_size -= adev->gmc.real_vram_size; 212 } 213 } 214 215 void amdgpu_amdkfd_interrupt(struct amdgpu_device *adev, 216 const void *ih_ring_entry) 217 { 218 if (adev->kfd.dev) 219 kgd2kfd_interrupt(adev->kfd.dev, ih_ring_entry); 220 } 221 222 void amdgpu_amdkfd_suspend(struct amdgpu_device *adev, bool run_pm) 223 { 224 if (adev->kfd.dev) 225 kgd2kfd_suspend(adev->kfd.dev, run_pm); 226 } 227 228 int amdgpu_amdkfd_resume_iommu(struct amdgpu_device *adev) 229 { 230 int r = 0; 231 232 if (adev->kfd.dev) 233 r = kgd2kfd_resume_iommu(adev->kfd.dev); 234 235 return r; 236 } 237 238 int amdgpu_amdkfd_resume(struct amdgpu_device *adev, bool run_pm) 239 { 240 int r = 0; 241 242 if (adev->kfd.dev) 243 r = kgd2kfd_resume(adev->kfd.dev, run_pm); 244 245 return r; 246 } 247 248 int amdgpu_amdkfd_pre_reset(struct amdgpu_device *adev) 249 { 250 int r = 0; 251 252 if (adev->kfd.dev) 253 r = kgd2kfd_pre_reset(adev->kfd.dev); 254 255 return r; 256 } 257 258 int amdgpu_amdkfd_post_reset(struct amdgpu_device *adev) 259 { 260 int r = 0; 261 262 if (adev->kfd.dev) 263 r = kgd2kfd_post_reset(adev->kfd.dev); 264 265 return r; 266 } 267 268 void amdgpu_amdkfd_gpu_reset(struct amdgpu_device *adev) 269 { 270 if (amdgpu_device_should_recover_gpu(adev)) 271 amdgpu_reset_domain_schedule(adev->reset_domain, 272 &adev->kfd.reset_work); 273 } 274 275 int amdgpu_amdkfd_alloc_gtt_mem(struct amdgpu_device *adev, size_t size, 276 void **mem_obj, uint64_t *gpu_addr, 277 void **cpu_ptr, bool cp_mqd_gfx9) 278 { 279 struct amdgpu_bo *bo = NULL; 280 struct amdgpu_bo_param bp; 281 int r; 282 void *cpu_ptr_tmp = NULL; 283 284 memset(&bp, 0, sizeof(bp)); 285 bp.size = size; 286 bp.byte_align = PAGE_SIZE; 287 bp.domain = AMDGPU_GEM_DOMAIN_GTT; 288 bp.flags = AMDGPU_GEM_CREATE_CPU_GTT_USWC; 289 bp.type = ttm_bo_type_kernel; 290 bp.resv = NULL; 291 bp.bo_ptr_size = sizeof(struct amdgpu_bo); 292 293 if (cp_mqd_gfx9) 294 bp.flags |= AMDGPU_GEM_CREATE_CP_MQD_GFX9; 295 296 r = amdgpu_bo_create(adev, &bp, &bo); 297 if (r) { 298 dev_err(adev->dev, 299 "failed to allocate BO for amdkfd (%d)\n", r); 300 return r; 301 } 302 303 /* map the buffer */ 304 r = amdgpu_bo_reserve(bo, true); 305 if (r) { 306 dev_err(adev->dev, "(%d) failed to reserve bo for amdkfd\n", r); 307 goto allocate_mem_reserve_bo_failed; 308 } 309 310 r = amdgpu_bo_pin(bo, AMDGPU_GEM_DOMAIN_GTT); 311 if (r) { 312 dev_err(adev->dev, "(%d) failed to pin bo for amdkfd\n", r); 313 goto allocate_mem_pin_bo_failed; 314 } 315 316 r = amdgpu_ttm_alloc_gart(&bo->tbo); 317 if (r) { 318 dev_err(adev->dev, "%p bind failed\n", bo); 319 goto allocate_mem_kmap_bo_failed; 320 } 321 322 r = amdgpu_bo_kmap(bo, &cpu_ptr_tmp); 323 if (r) { 324 dev_err(adev->dev, 325 "(%d) failed to map bo to kernel for amdkfd\n", r); 326 goto allocate_mem_kmap_bo_failed; 327 } 328 329 *mem_obj = bo; 330 *gpu_addr = amdgpu_bo_gpu_offset(bo); 331 *cpu_ptr = cpu_ptr_tmp; 332 333 amdgpu_bo_unreserve(bo); 334 335 return 0; 336 337 allocate_mem_kmap_bo_failed: 338 amdgpu_bo_unpin(bo); 339 allocate_mem_pin_bo_failed: 340 amdgpu_bo_unreserve(bo); 341 allocate_mem_reserve_bo_failed: 342 amdgpu_bo_unref(&bo); 343 344 return r; 345 } 346 347 void amdgpu_amdkfd_free_gtt_mem(struct amdgpu_device *adev, void *mem_obj) 348 { 349 struct amdgpu_bo *bo = (struct amdgpu_bo *) mem_obj; 350 351 amdgpu_bo_reserve(bo, true); 352 amdgpu_bo_kunmap(bo); 353 amdgpu_bo_unpin(bo); 354 amdgpu_bo_unreserve(bo); 355 amdgpu_bo_unref(&(bo)); 356 } 357 358 int amdgpu_amdkfd_alloc_gws(struct amdgpu_device *adev, size_t size, 359 void **mem_obj) 360 { 361 struct amdgpu_bo *bo = NULL; 362 struct amdgpu_bo_user *ubo; 363 struct amdgpu_bo_param bp; 364 int r; 365 366 memset(&bp, 0, sizeof(bp)); 367 bp.size = size; 368 bp.byte_align = 1; 369 bp.domain = AMDGPU_GEM_DOMAIN_GWS; 370 bp.flags = AMDGPU_GEM_CREATE_NO_CPU_ACCESS; 371 bp.type = ttm_bo_type_device; 372 bp.resv = NULL; 373 bp.bo_ptr_size = sizeof(struct amdgpu_bo); 374 375 r = amdgpu_bo_create_user(adev, &bp, &ubo); 376 if (r) { 377 dev_err(adev->dev, 378 "failed to allocate gws BO for amdkfd (%d)\n", r); 379 return r; 380 } 381 382 bo = &ubo->bo; 383 *mem_obj = bo; 384 return 0; 385 } 386 387 void amdgpu_amdkfd_free_gws(struct amdgpu_device *adev, void *mem_obj) 388 { 389 struct amdgpu_bo *bo = (struct amdgpu_bo *)mem_obj; 390 391 amdgpu_bo_unref(&bo); 392 } 393 394 uint32_t amdgpu_amdkfd_get_fw_version(struct amdgpu_device *adev, 395 enum kgd_engine_type type) 396 { 397 switch (type) { 398 case KGD_ENGINE_PFP: 399 return adev->gfx.pfp_fw_version; 400 401 case KGD_ENGINE_ME: 402 return adev->gfx.me_fw_version; 403 404 case KGD_ENGINE_CE: 405 return adev->gfx.ce_fw_version; 406 407 case KGD_ENGINE_MEC1: 408 return adev->gfx.mec_fw_version; 409 410 case KGD_ENGINE_MEC2: 411 return adev->gfx.mec2_fw_version; 412 413 case KGD_ENGINE_RLC: 414 return adev->gfx.rlc_fw_version; 415 416 case KGD_ENGINE_SDMA1: 417 return adev->sdma.instance[0].fw_version; 418 419 case KGD_ENGINE_SDMA2: 420 return adev->sdma.instance[1].fw_version; 421 422 default: 423 return 0; 424 } 425 426 return 0; 427 } 428 429 void amdgpu_amdkfd_get_local_mem_info(struct amdgpu_device *adev, 430 struct kfd_local_mem_info *mem_info) 431 { 432 memset(mem_info, 0, sizeof(*mem_info)); 433 434 mem_info->local_mem_size_public = adev->gmc.visible_vram_size; 435 mem_info->local_mem_size_private = adev->gmc.real_vram_size - 436 adev->gmc.visible_vram_size; 437 438 mem_info->vram_width = adev->gmc.vram_width; 439 440 pr_debug("Address base: %pap public 0x%llx private 0x%llx\n", 441 &adev->gmc.aper_base, 442 mem_info->local_mem_size_public, 443 mem_info->local_mem_size_private); 444 445 if (amdgpu_sriov_vf(adev)) 446 mem_info->mem_clk_max = adev->clock.default_mclk / 100; 447 else if (adev->pm.dpm_enabled) { 448 if (amdgpu_emu_mode == 1) 449 mem_info->mem_clk_max = 0; 450 else 451 mem_info->mem_clk_max = amdgpu_dpm_get_mclk(adev, false) / 100; 452 } else 453 mem_info->mem_clk_max = 100; 454 } 455 456 uint64_t amdgpu_amdkfd_get_gpu_clock_counter(struct amdgpu_device *adev) 457 { 458 if (adev->gfx.funcs->get_gpu_clock_counter) 459 return adev->gfx.funcs->get_gpu_clock_counter(adev); 460 return 0; 461 } 462 463 uint32_t amdgpu_amdkfd_get_max_engine_clock_in_mhz(struct amdgpu_device *adev) 464 { 465 /* the sclk is in quantas of 10kHz */ 466 if (amdgpu_sriov_vf(adev)) 467 return adev->clock.default_sclk / 100; 468 else if (adev->pm.dpm_enabled) 469 return amdgpu_dpm_get_sclk(adev, false) / 100; 470 else 471 return 100; 472 } 473 474 void amdgpu_amdkfd_get_cu_info(struct amdgpu_device *adev, struct kfd_cu_info *cu_info) 475 { 476 struct amdgpu_cu_info acu_info = adev->gfx.cu_info; 477 478 memset(cu_info, 0, sizeof(*cu_info)); 479 if (sizeof(cu_info->cu_bitmap) != sizeof(acu_info.bitmap)) 480 return; 481 482 cu_info->cu_active_number = acu_info.number; 483 cu_info->cu_ao_mask = acu_info.ao_cu_mask; 484 memcpy(&cu_info->cu_bitmap[0], &acu_info.bitmap[0], 485 sizeof(acu_info.bitmap)); 486 cu_info->num_shader_engines = adev->gfx.config.max_shader_engines; 487 cu_info->num_shader_arrays_per_engine = adev->gfx.config.max_sh_per_se; 488 cu_info->num_cu_per_sh = adev->gfx.config.max_cu_per_sh; 489 cu_info->simd_per_cu = acu_info.simd_per_cu; 490 cu_info->max_waves_per_simd = acu_info.max_waves_per_simd; 491 cu_info->wave_front_size = acu_info.wave_front_size; 492 cu_info->max_scratch_slots_per_cu = acu_info.max_scratch_slots_per_cu; 493 cu_info->lds_size = acu_info.lds_size; 494 } 495 496 int amdgpu_amdkfd_get_dmabuf_info(struct amdgpu_device *adev, int dma_buf_fd, 497 struct amdgpu_device **dmabuf_adev, 498 uint64_t *bo_size, void *metadata_buffer, 499 size_t buffer_size, uint32_t *metadata_size, 500 uint32_t *flags) 501 { 502 struct dma_buf *dma_buf; 503 struct drm_gem_object *obj; 504 struct amdgpu_bo *bo; 505 uint64_t metadata_flags; 506 int r = -EINVAL; 507 508 dma_buf = dma_buf_get(dma_buf_fd); 509 if (IS_ERR(dma_buf)) 510 return PTR_ERR(dma_buf); 511 512 if (dma_buf->ops != &amdgpu_dmabuf_ops) 513 /* Can't handle non-graphics buffers */ 514 goto out_put; 515 516 obj = dma_buf->priv; 517 if (obj->dev->driver != adev_to_drm(adev)->driver) 518 /* Can't handle buffers from different drivers */ 519 goto out_put; 520 521 adev = drm_to_adev(obj->dev); 522 bo = gem_to_amdgpu_bo(obj); 523 if (!(bo->preferred_domains & (AMDGPU_GEM_DOMAIN_VRAM | 524 AMDGPU_GEM_DOMAIN_GTT))) 525 /* Only VRAM and GTT BOs are supported */ 526 goto out_put; 527 528 r = 0; 529 if (dmabuf_adev) 530 *dmabuf_adev = adev; 531 if (bo_size) 532 *bo_size = amdgpu_bo_size(bo); 533 if (metadata_buffer) 534 r = amdgpu_bo_get_metadata(bo, metadata_buffer, buffer_size, 535 metadata_size, &metadata_flags); 536 if (flags) { 537 *flags = (bo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM) ? 538 KFD_IOC_ALLOC_MEM_FLAGS_VRAM 539 : KFD_IOC_ALLOC_MEM_FLAGS_GTT; 540 541 if (bo->flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED) 542 *flags |= KFD_IOC_ALLOC_MEM_FLAGS_PUBLIC; 543 } 544 545 out_put: 546 dma_buf_put(dma_buf); 547 return r; 548 } 549 550 uint8_t amdgpu_amdkfd_get_xgmi_hops_count(struct amdgpu_device *dst, 551 struct amdgpu_device *src) 552 { 553 struct amdgpu_device *peer_adev = src; 554 struct amdgpu_device *adev = dst; 555 int ret = amdgpu_xgmi_get_hops_count(adev, peer_adev); 556 557 if (ret < 0) { 558 DRM_ERROR("amdgpu: failed to get xgmi hops count between node %d and %d. ret = %d\n", 559 adev->gmc.xgmi.physical_node_id, 560 peer_adev->gmc.xgmi.physical_node_id, ret); 561 ret = 0; 562 } 563 return (uint8_t)ret; 564 } 565 566 int amdgpu_amdkfd_get_xgmi_bandwidth_mbytes(struct amdgpu_device *dst, 567 struct amdgpu_device *src, 568 bool is_min) 569 { 570 struct amdgpu_device *adev = dst, *peer_adev; 571 int num_links; 572 573 if (adev->asic_type != CHIP_ALDEBARAN) 574 return 0; 575 576 if (src) 577 peer_adev = src; 578 579 /* num links returns 0 for indirect peers since indirect route is unknown. */ 580 num_links = is_min ? 1 : amdgpu_xgmi_get_num_links(adev, peer_adev); 581 if (num_links < 0) { 582 DRM_ERROR("amdgpu: failed to get xgmi num links between node %d and %d. ret = %d\n", 583 adev->gmc.xgmi.physical_node_id, 584 peer_adev->gmc.xgmi.physical_node_id, num_links); 585 num_links = 0; 586 } 587 588 /* Aldebaran xGMI DPM is defeatured so assume x16 x 25Gbps for bandwidth. */ 589 return (num_links * 16 * 25000)/BITS_PER_BYTE; 590 } 591 592 int amdgpu_amdkfd_get_pcie_bandwidth_mbytes(struct amdgpu_device *adev, bool is_min) 593 { 594 int num_lanes_shift = (is_min ? ffs(adev->pm.pcie_mlw_mask) : 595 fls(adev->pm.pcie_mlw_mask)) - 1; 596 int gen_speed_shift = (is_min ? ffs(adev->pm.pcie_gen_mask & 597 CAIL_PCIE_LINK_SPEED_SUPPORT_MASK) : 598 fls(adev->pm.pcie_gen_mask & 599 CAIL_PCIE_LINK_SPEED_SUPPORT_MASK)) - 1; 600 uint32_t num_lanes_mask = 1 << num_lanes_shift; 601 uint32_t gen_speed_mask = 1 << gen_speed_shift; 602 int num_lanes_factor = 0, gen_speed_mbits_factor = 0; 603 604 switch (num_lanes_mask) { 605 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X1: 606 num_lanes_factor = 1; 607 break; 608 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X2: 609 num_lanes_factor = 2; 610 break; 611 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X4: 612 num_lanes_factor = 4; 613 break; 614 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X8: 615 num_lanes_factor = 8; 616 break; 617 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X12: 618 num_lanes_factor = 12; 619 break; 620 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X16: 621 num_lanes_factor = 16; 622 break; 623 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X32: 624 num_lanes_factor = 32; 625 break; 626 } 627 628 switch (gen_speed_mask) { 629 case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1: 630 gen_speed_mbits_factor = 2500; 631 break; 632 case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2: 633 gen_speed_mbits_factor = 5000; 634 break; 635 case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3: 636 gen_speed_mbits_factor = 8000; 637 break; 638 case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN4: 639 gen_speed_mbits_factor = 16000; 640 break; 641 case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN5: 642 gen_speed_mbits_factor = 32000; 643 break; 644 } 645 646 return (num_lanes_factor * gen_speed_mbits_factor)/BITS_PER_BYTE; 647 } 648 649 int amdgpu_amdkfd_submit_ib(struct amdgpu_device *adev, 650 enum kgd_engine_type engine, 651 uint32_t vmid, uint64_t gpu_addr, 652 uint32_t *ib_cmd, uint32_t ib_len) 653 { 654 struct amdgpu_job *job; 655 struct amdgpu_ib *ib; 656 struct amdgpu_ring *ring; 657 struct dma_fence *f = NULL; 658 int ret; 659 660 switch (engine) { 661 case KGD_ENGINE_MEC1: 662 ring = &adev->gfx.compute_ring[0]; 663 break; 664 case KGD_ENGINE_SDMA1: 665 ring = &adev->sdma.instance[0].ring; 666 break; 667 case KGD_ENGINE_SDMA2: 668 ring = &adev->sdma.instance[1].ring; 669 break; 670 default: 671 pr_err("Invalid engine in IB submission: %d\n", engine); 672 ret = -EINVAL; 673 goto err; 674 } 675 676 ret = amdgpu_job_alloc(adev, 1, &job, NULL); 677 if (ret) 678 goto err; 679 680 ib = &job->ibs[0]; 681 memset(ib, 0, sizeof(struct amdgpu_ib)); 682 683 ib->gpu_addr = gpu_addr; 684 ib->ptr = ib_cmd; 685 ib->length_dw = ib_len; 686 /* This works for NO_HWS. TODO: need to handle without knowing VMID */ 687 job->vmid = vmid; 688 job->num_ibs = 1; 689 690 ret = amdgpu_ib_schedule(ring, 1, ib, job, &f); 691 692 if (ret) { 693 DRM_ERROR("amdgpu: failed to schedule IB.\n"); 694 goto err_ib_sched; 695 } 696 697 /* Drop the initial kref_init count (see drm_sched_main as example) */ 698 dma_fence_put(f); 699 ret = dma_fence_wait(f, false); 700 701 err_ib_sched: 702 amdgpu_job_free(job); 703 err: 704 return ret; 705 } 706 707 void amdgpu_amdkfd_set_compute_idle(struct amdgpu_device *adev, bool idle) 708 { 709 /* Temporary workaround to fix issues observed in some 710 * compute applications when GFXOFF is enabled on GFX11. 711 */ 712 if (IP_VERSION_MAJ(adev->ip_versions[GC_HWIP][0]) == 11) { 713 pr_debug("GFXOFF is %s\n", idle ? "enabled" : "disabled"); 714 amdgpu_gfx_off_ctrl(adev, idle); 715 } 716 amdgpu_dpm_switch_power_profile(adev, 717 PP_SMC_POWER_PROFILE_COMPUTE, 718 !idle); 719 } 720 721 bool amdgpu_amdkfd_is_kfd_vmid(struct amdgpu_device *adev, u32 vmid) 722 { 723 if (adev->kfd.dev) 724 return vmid >= adev->vm_manager.first_kfd_vmid; 725 726 return false; 727 } 728 729 int amdgpu_amdkfd_flush_gpu_tlb_vmid(struct amdgpu_device *adev, 730 uint16_t vmid) 731 { 732 if (adev->family == AMDGPU_FAMILY_AI) { 733 int i; 734 735 for (i = 0; i < adev->num_vmhubs; i++) 736 amdgpu_gmc_flush_gpu_tlb(adev, vmid, i, 0); 737 } else { 738 amdgpu_gmc_flush_gpu_tlb(adev, vmid, AMDGPU_GFXHUB_0, 0); 739 } 740 741 return 0; 742 } 743 744 int amdgpu_amdkfd_flush_gpu_tlb_pasid(struct amdgpu_device *adev, 745 uint16_t pasid, enum TLB_FLUSH_TYPE flush_type) 746 { 747 bool all_hub = false; 748 749 if (adev->family == AMDGPU_FAMILY_AI || 750 adev->family == AMDGPU_FAMILY_RV) 751 all_hub = true; 752 753 return amdgpu_gmc_flush_gpu_tlb_pasid(adev, pasid, flush_type, all_hub); 754 } 755 756 bool amdgpu_amdkfd_have_atomics_support(struct amdgpu_device *adev) 757 { 758 return adev->have_atomics_support; 759 } 760 761 void amdgpu_amdkfd_ras_poison_consumption_handler(struct amdgpu_device *adev, bool reset) 762 { 763 struct ras_err_data err_data = {0, 0, 0, NULL}; 764 765 amdgpu_umc_poison_handler(adev, &err_data, reset); 766 } 767 768 bool amdgpu_amdkfd_ras_query_utcl2_poison_status(struct amdgpu_device *adev) 769 { 770 if (adev->gfx.ras && adev->gfx.ras->query_utcl2_poison_status) 771 return adev->gfx.ras->query_utcl2_poison_status(adev); 772 else 773 return false; 774 } 775