drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c

   1 /*
   2  * Copyright 2014 Advanced Micro Devices, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  */
  22
  23 #include "amdgpu_amdkfd.h"
  24 #include "amd_pcie.h"
  25 #include "amd_shared.h"
  26
  27 #include "amdgpu.h"
  28 #include "amdgpu_gfx.h"
  29 #include "amdgpu_dma_buf.h"
  30 #include <linux/module.h>
  31 #include <linux/dma-buf.h>
  32 #include "amdgpu_xgmi.h"
  33 #include <uapi/linux/kfd_ioctl.h>
  34 #include "amdgpu_ras.h"
  35 #include "amdgpu_umc.h"
  36
  37 /* Total memory size in system memory and all GPU VRAM. Used to
  38  * estimate worst case amount of memory to reserve for page tables
  39  */
  40 uint64_t amdgpu_amdkfd_total_mem_size;
  41
  42 static bool kfd_initialized;
  43
  44 int amdgpu_amdkfd_init(void)
  45 {
  46         struct sysinfo si;
  47         int ret;
  48
  49         si_meminfo(&si);
  50         amdgpu_amdkfd_total_mem_size = si.freeram - si.freehigh;
  51         amdgpu_amdkfd_total_mem_size *= si.mem_unit;
  52
  53         ret = kgd2kfd_init();
  54         amdgpu_amdkfd_gpuvm_init_mem_limits();
  55         kfd_initialized = !ret;
  56
  57         return ret;
  58 }
  59
  60 void amdgpu_amdkfd_fini(void)
  61 {
  62         if (kfd_initialized) {
  63                 kgd2kfd_exit();
  64                 kfd_initialized = false;
  65         }
  66 }
  67
  68 void amdgpu_amdkfd_device_probe(struct amdgpu_device *adev)
  69 {
  70         bool vf = amdgpu_sriov_vf(adev);
  71
  72         if (!kfd_initialized)
  73                 return;
  74
  75         adev->kfd.dev = kgd2kfd_probe((struct kgd_dev *)adev, vf);
  76
  77         if (adev->kfd.dev)
  78                 amdgpu_amdkfd_total_mem_size += adev->gmc.real_vram_size;
  79 }
  80
  81 /**
  82  * amdgpu_doorbell_get_kfd_info - Report doorbell configuration required to
  83  *                                setup amdkfd
  84  *
  85  * @adev: amdgpu_device pointer
  86  * @aperture_base: output returning doorbell aperture base physical address
  87  * @aperture_size: output returning doorbell aperture size in bytes
  88  * @start_offset: output returning # of doorbell bytes reserved for amdgpu.
  89  *
  90  * amdgpu and amdkfd share the doorbell aperture. amdgpu sets it up,
  91  * takes doorbells required for its own rings and reports the setup to amdkfd.
  92  * amdgpu reserved doorbells are at the start of the doorbell aperture.
  93  */
  94 static void amdgpu_doorbell_get_kfd_info(struct amdgpu_device *adev,
  95                                          phys_addr_t *aperture_base,
  96                                          size_t *aperture_size,
  97                                          size_t *start_offset)
  98 {
  99         /*
 100          * The first num_doorbells are used by amdgpu.
 101          * amdkfd takes whatever's left in the aperture.
 102          */
 103         if (adev->doorbell.size > adev->doorbell.num_doorbells * sizeof(u32)) {
 104                 *aperture_base = adev->doorbell.base;
 105                 *aperture_size = adev->doorbell.size;
 106                 *start_offset = adev->doorbell.num_doorbells * sizeof(u32);
 107         } else {
 108                 *aperture_base = 0;
 109                 *aperture_size = 0;
 110                 *start_offset = 0;
 111         }
 112 }
 113
 114 void amdgpu_amdkfd_device_init(struct amdgpu_device *adev)
 115 {
 116         int i;
 117         int last_valid_bit;
 118
 119         if (adev->kfd.dev) {
 120                 struct kgd2kfd_shared_resources gpu_resources = {
 121                         .compute_vmid_bitmap =
 122                                 ((1 << AMDGPU_NUM_VMID) - 1) -
 123                                 ((1 << adev->vm_manager.first_kfd_vmid) - 1),
 124                         .num_pipe_per_mec = adev->gfx.mec.num_pipe_per_mec,
 125                         .num_queue_per_pipe = adev->gfx.mec.num_queue_per_pipe,
 126                         .gpuvm_size = min(adev->vm_manager.max_pfn
 127                                           << AMDGPU_GPU_PAGE_SHIFT,
 128                                           AMDGPU_GMC_HOLE_START),
 129                         .drm_render_minor = adev_to_drm(adev)->render->index,
 130                         .sdma_doorbell_idx = adev->doorbell_index.sdma_engine,
 131
 132                 };
 133
 134                 /* this is going to have a few of the MSBs set that we need to
 135                  * clear
 136                  */
 137                 bitmap_complement(gpu_resources.cp_queue_bitmap,
 138                                   adev->gfx.mec.queue_bitmap,
 139                                   KGD_MAX_QUEUES);
 140
 141                 /* According to linux/bitmap.h we shouldn't use bitmap_clear if
 142                  * nbits is not compile time constant
 143                  */
 144                 last_valid_bit = 1 /* only first MEC can have compute queues */
 145                                 * adev->gfx.mec.num_pipe_per_mec
 146                                 * adev->gfx.mec.num_queue_per_pipe;
 147                 for (i = last_valid_bit; i < KGD_MAX_QUEUES; ++i)
 148                         clear_bit(i, gpu_resources.cp_queue_bitmap);
 149
 150                 amdgpu_doorbell_get_kfd_info(adev,
 151                                 &gpu_resources.doorbell_physical_address,
 152                                 &gpu_resources.doorbell_aperture_size,
 153                                 &gpu_resources.doorbell_start_offset);
 154
 155                 /* Since SOC15, BIF starts to statically use the
 156                  * lower 12 bits of doorbell addresses for routing
 157                  * based on settings in registers like
 158                  * SDMA0_DOORBELL_RANGE etc..
 159                  * In order to route a doorbell to CP engine, the lower
 160                  * 12 bits of its address has to be outside the range
 161                  * set for SDMA, VCN, and IH blocks.
 162                  */
 163                 if (adev->asic_type >= CHIP_VEGA10) {
 164                         gpu_resources.non_cp_doorbells_start =
 165                                         adev->doorbell_index.first_non_cp;
 166                         gpu_resources.non_cp_doorbells_end =
 167                                         adev->doorbell_index.last_non_cp;
 168                 }
 169
 170                 adev->kfd.init_complete = kgd2kfd_device_init(adev->kfd.dev,
 171                                                 adev_to_drm(adev), &gpu_resources);
 172         }
 173 }
 174
 175 void amdgpu_amdkfd_device_fini_sw(struct amdgpu_device *adev)
 176 {
 177         if (adev->kfd.dev) {
 178                 kgd2kfd_device_exit(adev->kfd.dev);
 179                 adev->kfd.dev = NULL;
 180         }
 181 }
 182
 183 void amdgpu_amdkfd_interrupt(struct amdgpu_device *adev,
 184                 const void *ih_ring_entry)
 185 {
 186         if (adev->kfd.dev)
 187                 kgd2kfd_interrupt(adev->kfd.dev, ih_ring_entry);
 188 }
 189
 190 void amdgpu_amdkfd_suspend(struct amdgpu_device *adev, bool run_pm)
 191 {
 192         if (adev->kfd.dev)
 193                 kgd2kfd_suspend(adev->kfd.dev, run_pm);
 194 }
 195
 196 int amdgpu_amdkfd_resume_iommu(struct amdgpu_device *adev)
 197 {
 198         int r = 0;
 199
 200         if (adev->kfd.dev)
 201                 r = kgd2kfd_resume_iommu(adev->kfd.dev);
 202
 203         return r;
 204 }
 205
 206 int amdgpu_amdkfd_resume(struct amdgpu_device *adev, bool run_pm)
 207 {
 208         int r = 0;
 209
 210         if (adev->kfd.dev)
 211                 r = kgd2kfd_resume(adev->kfd.dev, run_pm);
 212
 213         return r;
 214 }
 215
 216 int amdgpu_amdkfd_pre_reset(struct amdgpu_device *adev)
 217 {
 218         int r = 0;
 219
 220         if (adev->kfd.dev)
 221                 r = kgd2kfd_pre_reset(adev->kfd.dev);
 222
 223         return r;
 224 }
 225
 226 int amdgpu_amdkfd_post_reset(struct amdgpu_device *adev)
 227 {
 228         int r = 0;
 229
 230         if (adev->kfd.dev)
 231                 r = kgd2kfd_post_reset(adev->kfd.dev);
 232
 233         return r;
 234 }
 235
 236 void amdgpu_amdkfd_gpu_reset(struct kgd_dev *kgd)
 237 {
 238         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 239
 240         if (amdgpu_device_should_recover_gpu(adev))
 241                 amdgpu_device_gpu_recover(adev, NULL);
 242 }
 243
 244 int amdgpu_amdkfd_alloc_gtt_mem(struct kgd_dev *kgd, size_t size,
 245                                 void **mem_obj, uint64_t *gpu_addr,
 246                                 void **cpu_ptr, bool cp_mqd_gfx9)
 247 {
 248         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 249         struct amdgpu_bo *bo = NULL;
 250         struct amdgpu_bo_param bp;
 251         int r;
 252         void *cpu_ptr_tmp = NULL;
 253
 254         memset(&bp, 0, sizeof(bp));
 255         bp.size = size;
 256         bp.byte_align = PAGE_SIZE;
 257         bp.domain = AMDGPU_GEM_DOMAIN_GTT;
 258         bp.flags = AMDGPU_GEM_CREATE_CPU_GTT_USWC;
 259         bp.type = ttm_bo_type_kernel;
 260         bp.resv = NULL;
 261         bp.bo_ptr_size = sizeof(struct amdgpu_bo);
 262
 263         if (cp_mqd_gfx9)
 264                 bp.flags |= AMDGPU_GEM_CREATE_CP_MQD_GFX9;
 265
 266         r = amdgpu_bo_create(adev, &bp, &bo);
 267         if (r) {
 268                 dev_err(adev->dev,
 269                         "failed to allocate BO for amdkfd (%d)\n", r);
 270                 return r;
 271         }
 272
 273         /* map the buffer */
 274         r = amdgpu_bo_reserve(bo, true);
 275         if (r) {
 276                 dev_err(adev->dev, "(%d) failed to reserve bo for amdkfd\n", r);
 277                 goto allocate_mem_reserve_bo_failed;
 278         }
 279
 280         r = amdgpu_bo_pin(bo, AMDGPU_GEM_DOMAIN_GTT);
 281         if (r) {
 282                 dev_err(adev->dev, "(%d) failed to pin bo for amdkfd\n", r);
 283                 goto allocate_mem_pin_bo_failed;
 284         }
 285
 286         r = amdgpu_ttm_alloc_gart(&bo->tbo);
 287         if (r) {
 288                 dev_err(adev->dev, "%p bind failed\n", bo);
 289                 goto allocate_mem_kmap_bo_failed;
 290         }
 291
 292         r = amdgpu_bo_kmap(bo, &cpu_ptr_tmp);
 293         if (r) {
 294                 dev_err(adev->dev,
 295                         "(%d) failed to map bo to kernel for amdkfd\n", r);
 296                 goto allocate_mem_kmap_bo_failed;
 297         }
 298
 299         *mem_obj = bo;
 300         *gpu_addr = amdgpu_bo_gpu_offset(bo);
 301         *cpu_ptr = cpu_ptr_tmp;
 302
 303         amdgpu_bo_unreserve(bo);
 304
 305         return 0;
 306
 307 allocate_mem_kmap_bo_failed:
 308         amdgpu_bo_unpin(bo);
 309 allocate_mem_pin_bo_failed:
 310         amdgpu_bo_unreserve(bo);
 311 allocate_mem_reserve_bo_failed:
 312         amdgpu_bo_unref(&bo);
 313
 314         return r;
 315 }
 316
 317 void amdgpu_amdkfd_free_gtt_mem(struct kgd_dev *kgd, void *mem_obj)
 318 {
 319         struct amdgpu_bo *bo = (struct amdgpu_bo *) mem_obj;
 320
 321         amdgpu_bo_reserve(bo, true);
 322         amdgpu_bo_kunmap(bo);
 323         amdgpu_bo_unpin(bo);
 324         amdgpu_bo_unreserve(bo);
 325         amdgpu_bo_unref(&(bo));
 326 }
 327
 328 int amdgpu_amdkfd_alloc_gws(struct kgd_dev *kgd, size_t size,
 329                                 void **mem_obj)
 330 {
 331         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 332         struct amdgpu_bo *bo = NULL;
 333         struct amdgpu_bo_user *ubo;
 334         struct amdgpu_bo_param bp;
 335         int r;
 336
 337         memset(&bp, 0, sizeof(bp));
 338         bp.size = size;
 339         bp.byte_align = 1;
 340         bp.domain = AMDGPU_GEM_DOMAIN_GWS;
 341         bp.flags = AMDGPU_GEM_CREATE_NO_CPU_ACCESS;
 342         bp.type = ttm_bo_type_device;
 343         bp.resv = NULL;
 344         bp.bo_ptr_size = sizeof(struct amdgpu_bo);
 345
 346         r = amdgpu_bo_create_user(adev, &bp, &ubo);
 347         if (r) {
 348                 dev_err(adev->dev,
 349                         "failed to allocate gws BO for amdkfd (%d)\n", r);
 350                 return r;
 351         }
 352
 353         bo = &ubo->bo;
 354         *mem_obj = bo;
 355         return 0;
 356 }
 357
 358 void amdgpu_amdkfd_free_gws(struct kgd_dev *kgd, void *mem_obj)
 359 {
 360         struct amdgpu_bo *bo = (struct amdgpu_bo *)mem_obj;
 361
 362         amdgpu_bo_unref(&bo);
 363 }
 364
 365 uint32_t amdgpu_amdkfd_get_fw_version(struct kgd_dev *kgd,
 366                                       enum kgd_engine_type type)
 367 {
 368         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 369
 370         switch (type) {
 371         case KGD_ENGINE_PFP:
 372                 return adev->gfx.pfp_fw_version;
 373
 374         case KGD_ENGINE_ME:
 375                 return adev->gfx.me_fw_version;
 376
 377         case KGD_ENGINE_CE:
 378                 return adev->gfx.ce_fw_version;
 379
 380         case KGD_ENGINE_MEC1:
 381                 return adev->gfx.mec_fw_version;
 382
 383         case KGD_ENGINE_MEC2:
 384                 return adev->gfx.mec2_fw_version;
 385
 386         case KGD_ENGINE_RLC:
 387                 return adev->gfx.rlc_fw_version;
 388
 389         case KGD_ENGINE_SDMA1:
 390                 return adev->sdma.instance[0].fw_version;
 391
 392         case KGD_ENGINE_SDMA2:
 393                 return adev->sdma.instance[1].fw_version;
 394
 395         default:
 396                 return 0;
 397         }
 398
 399         return 0;
 400 }
 401
 402 void amdgpu_amdkfd_get_local_mem_info(struct kgd_dev *kgd,
 403                                       struct kfd_local_mem_info *mem_info)
 404 {
 405         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 406
 407         memset(mem_info, 0, sizeof(*mem_info));
 408
 409         mem_info->local_mem_size_public = adev->gmc.visible_vram_size;
 410         mem_info->local_mem_size_private = adev->gmc.real_vram_size -
 411                                                 adev->gmc.visible_vram_size;
 412
 413         mem_info->vram_width = adev->gmc.vram_width;
 414
 415         pr_debug("Address base: %pap public 0x%llx private 0x%llx\n",
 416                         &adev->gmc.aper_base,
 417                         mem_info->local_mem_size_public,
 418                         mem_info->local_mem_size_private);
 419
 420         if (amdgpu_sriov_vf(adev))
 421                 mem_info->mem_clk_max = adev->clock.default_mclk / 100;
 422         else if (adev->pm.dpm_enabled) {
 423                 if (amdgpu_emu_mode == 1)
 424                         mem_info->mem_clk_max = 0;
 425                 else
 426                         mem_info->mem_clk_max = amdgpu_dpm_get_mclk(adev, false) / 100;
 427         } else
 428                 mem_info->mem_clk_max = 100;
 429 }
 430
 431 uint64_t amdgpu_amdkfd_get_gpu_clock_counter(struct kgd_dev *kgd)
 432 {
 433         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 434
 435         if (adev->gfx.funcs->get_gpu_clock_counter)
 436                 return adev->gfx.funcs->get_gpu_clock_counter(adev);
 437         return 0;
 438 }
 439
 440 uint32_t amdgpu_amdkfd_get_max_engine_clock_in_mhz(struct kgd_dev *kgd)
 441 {
 442         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 443
 444         /* the sclk is in quantas of 10kHz */
 445         if (amdgpu_sriov_vf(adev))
 446                 return adev->clock.default_sclk / 100;
 447         else if (adev->pm.dpm_enabled)
 448                 return amdgpu_dpm_get_sclk(adev, false) / 100;
 449         else
 450                 return 100;
 451 }
 452
 453 void amdgpu_amdkfd_get_cu_info(struct kgd_dev *kgd, struct kfd_cu_info *cu_info)
 454 {
 455         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 456         struct amdgpu_cu_info acu_info = adev->gfx.cu_info;
 457
 458         memset(cu_info, 0, sizeof(*cu_info));
 459         if (sizeof(cu_info->cu_bitmap) != sizeof(acu_info.bitmap))
 460                 return;
 461
 462         cu_info->cu_active_number = acu_info.number;
 463         cu_info->cu_ao_mask = acu_info.ao_cu_mask;
 464         memcpy(&cu_info->cu_bitmap[0], &acu_info.bitmap[0],
 465                sizeof(acu_info.bitmap));
 466         cu_info->num_shader_engines = adev->gfx.config.max_shader_engines;
 467         cu_info->num_shader_arrays_per_engine = adev->gfx.config.max_sh_per_se;
 468         cu_info->num_cu_per_sh = adev->gfx.config.max_cu_per_sh;
 469         cu_info->simd_per_cu = acu_info.simd_per_cu;
 470         cu_info->max_waves_per_simd = acu_info.max_waves_per_simd;
 471         cu_info->wave_front_size = acu_info.wave_front_size;
 472         cu_info->max_scratch_slots_per_cu = acu_info.max_scratch_slots_per_cu;
 473         cu_info->lds_size = acu_info.lds_size;
 474 }
 475
 476 int amdgpu_amdkfd_get_dmabuf_info(struct kgd_dev *kgd, int dma_buf_fd,
 477                                   struct kgd_dev **dma_buf_kgd,
 478                                   uint64_t *bo_size, void *metadata_buffer,
 479                                   size_t buffer_size, uint32_t *metadata_size,
 480                                   uint32_t *flags)
 481 {
 482         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 483         struct dma_buf *dma_buf;
 484         struct drm_gem_object *obj;
 485         struct amdgpu_bo *bo;
 486         uint64_t metadata_flags;
 487         int r = -EINVAL;
 488
 489         dma_buf = dma_buf_get(dma_buf_fd);
 490         if (IS_ERR(dma_buf))
 491                 return PTR_ERR(dma_buf);
 492
 493         if (dma_buf->ops != &amdgpu_dmabuf_ops)
 494                 /* Can't handle non-graphics buffers */
 495                 goto out_put;
 496
 497         obj = dma_buf->priv;
 498         if (obj->dev->driver != adev_to_drm(adev)->driver)
 499                 /* Can't handle buffers from different drivers */
 500                 goto out_put;
 501
 502         adev = drm_to_adev(obj->dev);
 503         bo = gem_to_amdgpu_bo(obj);
 504         if (!(bo->preferred_domains & (AMDGPU_GEM_DOMAIN_VRAM |
 505                                     AMDGPU_GEM_DOMAIN_GTT)))
 506                 /* Only VRAM and GTT BOs are supported */
 507                 goto out_put;
 508
 509         r = 0;
 510         if (dma_buf_kgd)
 511                 *dma_buf_kgd = (struct kgd_dev *)adev;
 512         if (bo_size)
 513                 *bo_size = amdgpu_bo_size(bo);
 514         if (metadata_buffer)
 515                 r = amdgpu_bo_get_metadata(bo, metadata_buffer, buffer_size,
 516                                            metadata_size, &metadata_flags);
 517         if (flags) {
 518                 *flags = (bo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM) ?
 519                                 KFD_IOC_ALLOC_MEM_FLAGS_VRAM
 520                                 : KFD_IOC_ALLOC_MEM_FLAGS_GTT;
 521
 522                 if (bo->flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
 523                         *flags |= KFD_IOC_ALLOC_MEM_FLAGS_PUBLIC;
 524         }
 525
 526 out_put:
 527         dma_buf_put(dma_buf);
 528         return r;
 529 }
 530
 531 uint64_t amdgpu_amdkfd_get_vram_usage(struct kgd_dev *kgd)
 532 {
 533         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 534         struct ttm_resource_manager *vram_man = ttm_manager_type(&adev->mman.bdev, TTM_PL_VRAM);
 535
 536         return amdgpu_vram_mgr_usage(vram_man);
 537 }
 538
 539 uint64_t amdgpu_amdkfd_get_hive_id(struct kgd_dev *kgd)
 540 {
 541         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 542
 543         return adev->gmc.xgmi.hive_id;
 544 }
 545
 546 uint64_t amdgpu_amdkfd_get_unique_id(struct kgd_dev *kgd)
 547 {
 548         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 549
 550         return adev->unique_id;
 551 }
 552
 553 uint8_t amdgpu_amdkfd_get_xgmi_hops_count(struct kgd_dev *dst, struct kgd_dev *src)
 554 {
 555         struct amdgpu_device *peer_adev = (struct amdgpu_device *)src;
 556         struct amdgpu_device *adev = (struct amdgpu_device *)dst;
 557         int ret = amdgpu_xgmi_get_hops_count(adev, peer_adev);
 558
 559         if (ret < 0) {
 560                 DRM_ERROR("amdgpu: failed to get  xgmi hops count between node %d and %d. ret = %d\n",
 561                         adev->gmc.xgmi.physical_node_id,
 562                         peer_adev->gmc.xgmi.physical_node_id, ret);
 563                 ret = 0;
 564         }
 565         return  (uint8_t)ret;
 566 }
 567
 568 int amdgpu_amdkfd_get_xgmi_bandwidth_mbytes(struct kgd_dev *dst, struct kgd_dev *src, bool is_min)
 569 {
 570         struct amdgpu_device *adev = (struct amdgpu_device *)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 = (struct amdgpu_device *)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 kgd_dev *dev, bool is_min)
 593 {
 594         struct amdgpu_device *adev = (struct amdgpu_device *)dev;
 595         int num_lanes_shift = (is_min ? ffs(adev->pm.pcie_mlw_mask) :
 596                                                         fls(adev->pm.pcie_mlw_mask)) - 1;
 597         int gen_speed_shift = (is_min ? ffs(adev->pm.pcie_gen_mask &
 598                                                 CAIL_PCIE_LINK_SPEED_SUPPORT_MASK) :
 599                                         fls(adev->pm.pcie_gen_mask &
 600                                                 CAIL_PCIE_LINK_SPEED_SUPPORT_MASK)) - 1;
 601         uint32_t num_lanes_mask = 1 << num_lanes_shift;
 602         uint32_t gen_speed_mask = 1 << gen_speed_shift;
 603         int num_lanes_factor = 0, gen_speed_mbits_factor = 0;
 604
 605         switch (num_lanes_mask) {
 606         case CAIL_PCIE_LINK_WIDTH_SUPPORT_X1:
 607                 num_lanes_factor = 1;
 608                 break;
 609         case CAIL_PCIE_LINK_WIDTH_SUPPORT_X2:
 610                 num_lanes_factor = 2;
 611                 break;
 612         case CAIL_PCIE_LINK_WIDTH_SUPPORT_X4:
 613                 num_lanes_factor = 4;
 614                 break;
 615         case CAIL_PCIE_LINK_WIDTH_SUPPORT_X8:
 616                 num_lanes_factor = 8;
 617                 break;
 618         case CAIL_PCIE_LINK_WIDTH_SUPPORT_X12:
 619                 num_lanes_factor = 12;
 620                 break;
 621         case CAIL_PCIE_LINK_WIDTH_SUPPORT_X16:
 622                 num_lanes_factor = 16;
 623                 break;
 624         case CAIL_PCIE_LINK_WIDTH_SUPPORT_X32:
 625                 num_lanes_factor = 32;
 626                 break;
 627         }
 628
 629         switch (gen_speed_mask) {
 630         case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1:
 631                 gen_speed_mbits_factor = 2500;
 632                 break;
 633         case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2:
 634                 gen_speed_mbits_factor = 5000;
 635                 break;
 636         case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3:
 637                 gen_speed_mbits_factor = 8000;
 638                 break;
 639         case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN4:
 640                 gen_speed_mbits_factor = 16000;
 641                 break;
 642         case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN5:
 643                 gen_speed_mbits_factor = 32000;
 644                 break;
 645         }
 646
 647         return (num_lanes_factor * gen_speed_mbits_factor)/BITS_PER_BYTE;
 648 }
 649
 650 uint64_t amdgpu_amdkfd_get_mmio_remap_phys_addr(struct kgd_dev *kgd)
 651 {
 652         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 653
 654         return adev->rmmio_remap.bus_addr;
 655 }
 656
 657 uint32_t amdgpu_amdkfd_get_num_gws(struct kgd_dev *kgd)
 658 {
 659         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 660
 661         return adev->gds.gws_size;
 662 }
 663
 664 uint32_t amdgpu_amdkfd_get_asic_rev_id(struct kgd_dev *kgd)
 665 {
 666         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 667
 668         return adev->rev_id;
 669 }
 670
 671 int amdgpu_amdkfd_get_noretry(struct kgd_dev *kgd)
 672 {
 673         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 674
 675         return adev->gmc.noretry;
 676 }
 677
 678 int amdgpu_amdkfd_submit_ib(struct kgd_dev *kgd, enum kgd_engine_type engine,
 679                                 uint32_t vmid, uint64_t gpu_addr,
 680                                 uint32_t *ib_cmd, uint32_t ib_len)
 681 {
 682         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 683         struct amdgpu_job *job;
 684         struct amdgpu_ib *ib;
 685         struct amdgpu_ring *ring;
 686         struct dma_fence *f = NULL;
 687         int ret;
 688
 689         switch (engine) {
 690         case KGD_ENGINE_MEC1:
 691                 ring = &adev->gfx.compute_ring[0];
 692                 break;
 693         case KGD_ENGINE_SDMA1:
 694                 ring = &adev->sdma.instance[0].ring;
 695                 break;
 696         case KGD_ENGINE_SDMA2:
 697                 ring = &adev->sdma.instance[1].ring;
 698                 break;
 699         default:
 700                 pr_err("Invalid engine in IB submission: %d\n", engine);
 701                 ret = -EINVAL;
 702                 goto err;
 703         }
 704
 705         ret = amdgpu_job_alloc(adev, 1, &job, NULL);
 706         if (ret)
 707                 goto err;
 708
 709         ib = &job->ibs[0];
 710         memset(ib, 0, sizeof(struct amdgpu_ib));
 711
 712         ib->gpu_addr = gpu_addr;
 713         ib->ptr = ib_cmd;
 714         ib->length_dw = ib_len;
 715         /* This works for NO_HWS. TODO: need to handle without knowing VMID */
 716         job->vmid = vmid;
 717
 718         ret = amdgpu_ib_schedule(ring, 1, ib, job, &f);
 719
 720         if (ret) {
 721                 DRM_ERROR("amdgpu: failed to schedule IB.\n");
 722                 goto err_ib_sched;
 723         }
 724
 725         ret = dma_fence_wait(f, false);
 726
 727 err_ib_sched:
 728         amdgpu_job_free(job);
 729 err:
 730         return ret;
 731 }
 732
 733 void amdgpu_amdkfd_set_compute_idle(struct kgd_dev *kgd, bool idle)
 734 {
 735         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 736
 737         amdgpu_dpm_switch_power_profile(adev,
 738                                         PP_SMC_POWER_PROFILE_COMPUTE,
 739                                         !idle);
 740 }
 741
 742 bool amdgpu_amdkfd_is_kfd_vmid(struct amdgpu_device *adev, u32 vmid)
 743 {
 744         if (adev->kfd.dev)
 745                 return vmid >= adev->vm_manager.first_kfd_vmid;
 746
 747         return false;
 748 }
 749
 750 int amdgpu_amdkfd_flush_gpu_tlb_vmid(struct kgd_dev *kgd, uint16_t vmid)
 751 {
 752         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 753
 754         if (adev->family == AMDGPU_FAMILY_AI) {
 755                 int i;
 756
 757                 for (i = 0; i < adev->num_vmhubs; i++)
 758                         amdgpu_gmc_flush_gpu_tlb(adev, vmid, i, 0);
 759         } else {
 760                 amdgpu_gmc_flush_gpu_tlb(adev, vmid, AMDGPU_GFXHUB_0, 0);
 761         }
 762
 763         return 0;
 764 }
 765
 766 int amdgpu_amdkfd_flush_gpu_tlb_pasid(struct kgd_dev *kgd, uint16_t pasid,
 767                                       enum TLB_FLUSH_TYPE flush_type)
 768 {
 769         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 770         bool all_hub = false;
 771
 772         if (adev->family == AMDGPU_FAMILY_AI)
 773                 all_hub = true;
 774
 775         return amdgpu_gmc_flush_gpu_tlb_pasid(adev, pasid, flush_type, all_hub);
 776 }
 777
 778 bool amdgpu_amdkfd_have_atomics_support(struct kgd_dev *kgd)
 779 {
 780         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 781
 782         return adev->have_atomics_support;
 783 }
 784
 785 void amdgpu_amdkfd_ras_poison_consumption_handler(struct kgd_dev *kgd)
 786 {
 787         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 788         struct ras_err_data err_data = {0, 0, 0, NULL};
 789
 790         /* CPU MCA will handle page retirement if connected_to_cpu is 1 */
 791         if (!adev->gmc.xgmi.connected_to_cpu)
 792                 amdgpu_umc_process_ras_data_cb(adev, &err_data, NULL);
 793         else
 794                 amdgpu_amdkfd_gpu_reset(kgd);
 795 }