1 // SPDX-License-Identifier: MIT 2 /* 3 * Copyright 2024 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 <drm/drm_drv.h> 25 #include "amdgpu.h" 26 #include "amdgpu_gfx.h" 27 #include "mes_userqueue.h" 28 #include "amdgpu_userq_fence.h" 29 30 #define AMDGPU_USERQ_PROC_CTX_SZ PAGE_SIZE 31 #define AMDGPU_USERQ_GANG_CTX_SZ PAGE_SIZE 32 33 static int 34 mes_userq_map_gtt_bo_to_gart(struct amdgpu_bo *bo) 35 { 36 int ret; 37 38 ret = amdgpu_bo_reserve(bo, true); 39 if (ret) { 40 DRM_ERROR("Failed to reserve bo. ret %d\n", ret); 41 goto err_reserve_bo_failed; 42 } 43 44 ret = amdgpu_ttm_alloc_gart(&bo->tbo); 45 if (ret) { 46 DRM_ERROR("Failed to bind bo to GART. ret %d\n", ret); 47 goto err_map_bo_gart_failed; 48 } 49 50 amdgpu_bo_unreserve(bo); 51 bo = amdgpu_bo_ref(bo); 52 53 return 0; 54 55 err_map_bo_gart_failed: 56 amdgpu_bo_unreserve(bo); 57 err_reserve_bo_failed: 58 return ret; 59 } 60 61 static int 62 mes_userq_create_wptr_mapping(struct amdgpu_userq_mgr *uq_mgr, 63 struct amdgpu_usermode_queue *queue, 64 uint64_t wptr) 65 { 66 struct amdgpu_bo_va_mapping *wptr_mapping; 67 struct amdgpu_vm *wptr_vm; 68 struct amdgpu_userq_obj *wptr_obj = &queue->wptr_obj; 69 int ret; 70 71 wptr_vm = queue->vm; 72 ret = amdgpu_bo_reserve(wptr_vm->root.bo, false); 73 if (ret) 74 return ret; 75 76 wptr &= AMDGPU_GMC_HOLE_MASK; 77 wptr_mapping = amdgpu_vm_bo_lookup_mapping(wptr_vm, wptr >> PAGE_SHIFT); 78 amdgpu_bo_unreserve(wptr_vm->root.bo); 79 if (!wptr_mapping) { 80 DRM_ERROR("Failed to lookup wptr bo\n"); 81 return -EINVAL; 82 } 83 84 wptr_obj->obj = wptr_mapping->bo_va->base.bo; 85 if (wptr_obj->obj->tbo.base.size > PAGE_SIZE) { 86 DRM_ERROR("Requested GART mapping for wptr bo larger than one page\n"); 87 return -EINVAL; 88 } 89 90 ret = mes_userq_map_gtt_bo_to_gart(wptr_obj->obj); 91 if (ret) { 92 DRM_ERROR("Failed to map wptr bo to GART\n"); 93 return ret; 94 } 95 96 queue->wptr_obj.gpu_addr = amdgpu_bo_gpu_offset_no_check(wptr_obj->obj); 97 return 0; 98 } 99 100 static int convert_to_mes_priority(int priority) 101 { 102 switch (priority) { 103 case AMDGPU_USERQ_CREATE_FLAGS_QUEUE_PRIORITY_NORMAL_LOW: 104 default: 105 return AMDGPU_MES_PRIORITY_LEVEL_NORMAL; 106 case AMDGPU_USERQ_CREATE_FLAGS_QUEUE_PRIORITY_LOW: 107 return AMDGPU_MES_PRIORITY_LEVEL_LOW; 108 case AMDGPU_USERQ_CREATE_FLAGS_QUEUE_PRIORITY_NORMAL_HIGH: 109 return AMDGPU_MES_PRIORITY_LEVEL_MEDIUM; 110 case AMDGPU_USERQ_CREATE_FLAGS_QUEUE_PRIORITY_HIGH: 111 return AMDGPU_MES_PRIORITY_LEVEL_HIGH; 112 } 113 } 114 115 static int mes_userq_map(struct amdgpu_userq_mgr *uq_mgr, 116 struct amdgpu_usermode_queue *queue) 117 { 118 struct amdgpu_device *adev = uq_mgr->adev; 119 struct amdgpu_userq_obj *ctx = &queue->fw_obj; 120 struct amdgpu_mqd_prop *userq_props = queue->userq_prop; 121 struct mes_add_queue_input queue_input; 122 int r; 123 124 memset(&queue_input, 0x0, sizeof(struct mes_add_queue_input)); 125 126 queue_input.process_va_start = 0; 127 queue_input.process_va_end = adev->vm_manager.max_pfn - 1; 128 129 /* set process quantum to 10 ms and gang quantum to 1 ms as default */ 130 queue_input.process_quantum = 100000; 131 queue_input.gang_quantum = 10000; 132 queue_input.paging = false; 133 134 queue_input.process_context_addr = ctx->gpu_addr; 135 queue_input.gang_context_addr = ctx->gpu_addr + AMDGPU_USERQ_PROC_CTX_SZ; 136 queue_input.inprocess_gang_priority = AMDGPU_MES_PRIORITY_LEVEL_NORMAL; 137 queue_input.gang_global_priority_level = convert_to_mes_priority(queue->priority); 138 139 queue_input.process_id = queue->vm->pasid; 140 queue_input.queue_type = queue->queue_type; 141 queue_input.mqd_addr = queue->mqd.gpu_addr; 142 queue_input.wptr_addr = userq_props->wptr_gpu_addr; 143 queue_input.queue_size = userq_props->queue_size >> 2; 144 queue_input.doorbell_offset = userq_props->doorbell_index; 145 queue_input.page_table_base_addr = amdgpu_gmc_pd_addr(queue->vm->root.bo); 146 queue_input.wptr_mc_addr = queue->wptr_obj.gpu_addr; 147 148 amdgpu_mes_lock(&adev->mes); 149 r = adev->mes.funcs->add_hw_queue(&adev->mes, &queue_input); 150 amdgpu_mes_unlock(&adev->mes); 151 if (r) { 152 DRM_ERROR("Failed to map queue in HW, err (%d)\n", r); 153 return r; 154 } 155 156 DRM_DEBUG_DRIVER("Queue (doorbell:%d) mapped successfully\n", userq_props->doorbell_index); 157 return 0; 158 } 159 160 static int mes_userq_unmap(struct amdgpu_userq_mgr *uq_mgr, 161 struct amdgpu_usermode_queue *queue) 162 { 163 struct amdgpu_device *adev = uq_mgr->adev; 164 struct mes_remove_queue_input queue_input; 165 struct amdgpu_userq_obj *ctx = &queue->fw_obj; 166 int r; 167 168 memset(&queue_input, 0x0, sizeof(struct mes_remove_queue_input)); 169 queue_input.doorbell_offset = queue->doorbell_index; 170 queue_input.gang_context_addr = ctx->gpu_addr + AMDGPU_USERQ_PROC_CTX_SZ; 171 172 amdgpu_mes_lock(&adev->mes); 173 r = adev->mes.funcs->remove_hw_queue(&adev->mes, &queue_input); 174 amdgpu_mes_unlock(&adev->mes); 175 if (r) 176 DRM_ERROR("Failed to unmap queue in HW, err (%d)\n", r); 177 return r; 178 } 179 180 static int mes_userq_create_ctx_space(struct amdgpu_userq_mgr *uq_mgr, 181 struct amdgpu_usermode_queue *queue, 182 struct drm_amdgpu_userq_in *mqd_user) 183 { 184 struct amdgpu_userq_obj *ctx = &queue->fw_obj; 185 int r, size; 186 187 /* 188 * The FW expects at least one page space allocated for 189 * process ctx and gang ctx each. Create an object 190 * for the same. 191 */ 192 size = AMDGPU_USERQ_PROC_CTX_SZ + AMDGPU_USERQ_GANG_CTX_SZ; 193 r = amdgpu_userq_create_object(uq_mgr, ctx, size); 194 if (r) { 195 DRM_ERROR("Failed to allocate ctx space bo for userqueue, err:%d\n", r); 196 return r; 197 } 198 199 return 0; 200 } 201 202 static int mes_userq_detect_and_reset(struct amdgpu_device *adev, 203 int queue_type) 204 { 205 int db_array_size = amdgpu_mes_get_hung_queue_db_array_size(adev); 206 struct mes_detect_and_reset_queue_input input; 207 struct amdgpu_usermode_queue *queue; 208 unsigned int hung_db_num = 0; 209 unsigned long queue_id; 210 u32 db_array[8]; 211 int r, i; 212 213 if (db_array_size > 8) { 214 dev_err(adev->dev, "DB array size (%d vs 8) too small\n", 215 db_array_size); 216 return -EINVAL; 217 } 218 219 memset(&input, 0x0, sizeof(struct mes_detect_and_reset_queue_input)); 220 221 input.queue_type = queue_type; 222 223 amdgpu_mes_lock(&adev->mes); 224 r = amdgpu_mes_detect_and_reset_hung_queues(adev, queue_type, false, 225 &hung_db_num, db_array); 226 amdgpu_mes_unlock(&adev->mes); 227 if (r) { 228 dev_err(adev->dev, "Failed to detect and reset queues, err (%d)\n", r); 229 } else if (hung_db_num) { 230 xa_for_each(&adev->userq_doorbell_xa, queue_id, queue) { 231 if (queue->queue_type == queue_type) { 232 for (i = 0; i < hung_db_num; i++) { 233 if (queue->doorbell_index == db_array[i]) { 234 queue->state = AMDGPU_USERQ_STATE_HUNG; 235 atomic_inc(&adev->gpu_reset_counter); 236 amdgpu_userq_fence_driver_force_completion(queue); 237 drm_dev_wedged_event(adev_to_drm(adev), DRM_WEDGE_RECOVERY_NONE, NULL); 238 } 239 } 240 } 241 } 242 } 243 244 return r; 245 } 246 247 static int mes_userq_mqd_create(struct amdgpu_userq_mgr *uq_mgr, 248 struct drm_amdgpu_userq_in *args_in, 249 struct amdgpu_usermode_queue *queue) 250 { 251 struct amdgpu_device *adev = uq_mgr->adev; 252 struct amdgpu_mqd *mqd_hw_default = &adev->mqds[queue->queue_type]; 253 struct drm_amdgpu_userq_in *mqd_user = args_in; 254 struct amdgpu_mqd_prop *userq_props; 255 int r; 256 257 /* Structure to initialize MQD for userqueue using generic MQD init function */ 258 userq_props = kzalloc(sizeof(struct amdgpu_mqd_prop), GFP_KERNEL); 259 if (!userq_props) { 260 DRM_ERROR("Failed to allocate memory for userq_props\n"); 261 return -ENOMEM; 262 } 263 264 r = amdgpu_userq_create_object(uq_mgr, &queue->mqd, mqd_hw_default->mqd_size); 265 if (r) { 266 DRM_ERROR("Failed to create MQD object for userqueue\n"); 267 goto free_props; 268 } 269 270 /* Initialize the MQD BO with user given values */ 271 userq_props->wptr_gpu_addr = mqd_user->wptr_va; 272 userq_props->rptr_gpu_addr = mqd_user->rptr_va; 273 userq_props->queue_size = mqd_user->queue_size; 274 userq_props->hqd_base_gpu_addr = mqd_user->queue_va; 275 userq_props->mqd_gpu_addr = queue->mqd.gpu_addr; 276 userq_props->use_doorbell = true; 277 userq_props->doorbell_index = queue->doorbell_index; 278 userq_props->fence_address = queue->fence_drv->gpu_addr; 279 280 if (queue->queue_type == AMDGPU_HW_IP_COMPUTE) { 281 struct drm_amdgpu_userq_mqd_compute_gfx11 *compute_mqd; 282 283 if (mqd_user->mqd_size != sizeof(*compute_mqd)) { 284 DRM_ERROR("Invalid compute IP MQD size\n"); 285 r = -EINVAL; 286 goto free_mqd; 287 } 288 289 compute_mqd = memdup_user(u64_to_user_ptr(mqd_user->mqd), mqd_user->mqd_size); 290 if (IS_ERR(compute_mqd)) { 291 DRM_ERROR("Failed to read user MQD\n"); 292 r = -ENOMEM; 293 goto free_mqd; 294 } 295 296 r = amdgpu_userq_input_va_validate(queue, compute_mqd->eop_va, 297 2048); 298 if (r) 299 goto free_mqd; 300 301 userq_props->eop_gpu_addr = compute_mqd->eop_va; 302 userq_props->hqd_pipe_priority = AMDGPU_GFX_PIPE_PRIO_NORMAL; 303 userq_props->hqd_queue_priority = AMDGPU_GFX_QUEUE_PRIORITY_MINIMUM; 304 userq_props->hqd_active = false; 305 userq_props->tmz_queue = 306 mqd_user->flags & AMDGPU_USERQ_CREATE_FLAGS_QUEUE_SECURE; 307 kfree(compute_mqd); 308 } else if (queue->queue_type == AMDGPU_HW_IP_GFX) { 309 struct drm_amdgpu_userq_mqd_gfx11 *mqd_gfx_v11; 310 struct amdgpu_gfx_shadow_info shadow_info; 311 312 if (adev->gfx.funcs->get_gfx_shadow_info) { 313 adev->gfx.funcs->get_gfx_shadow_info(adev, &shadow_info, true); 314 } else { 315 r = -EINVAL; 316 goto free_mqd; 317 } 318 319 if (mqd_user->mqd_size != sizeof(*mqd_gfx_v11) || !mqd_user->mqd) { 320 DRM_ERROR("Invalid GFX MQD\n"); 321 r = -EINVAL; 322 goto free_mqd; 323 } 324 325 mqd_gfx_v11 = memdup_user(u64_to_user_ptr(mqd_user->mqd), mqd_user->mqd_size); 326 if (IS_ERR(mqd_gfx_v11)) { 327 DRM_ERROR("Failed to read user MQD\n"); 328 r = -ENOMEM; 329 goto free_mqd; 330 } 331 332 userq_props->shadow_addr = mqd_gfx_v11->shadow_va; 333 userq_props->csa_addr = mqd_gfx_v11->csa_va; 334 userq_props->tmz_queue = 335 mqd_user->flags & AMDGPU_USERQ_CREATE_FLAGS_QUEUE_SECURE; 336 337 r = amdgpu_userq_input_va_validate(queue, mqd_gfx_v11->shadow_va, 338 shadow_info.shadow_size); 339 if (r) 340 goto free_mqd; 341 r = amdgpu_userq_input_va_validate(queue, mqd_gfx_v11->csa_va, 342 shadow_info.csa_size); 343 if (r) 344 goto free_mqd; 345 346 kfree(mqd_gfx_v11); 347 } else if (queue->queue_type == AMDGPU_HW_IP_DMA) { 348 struct drm_amdgpu_userq_mqd_sdma_gfx11 *mqd_sdma_v11; 349 350 if (mqd_user->mqd_size != sizeof(*mqd_sdma_v11) || !mqd_user->mqd) { 351 DRM_ERROR("Invalid SDMA MQD\n"); 352 r = -EINVAL; 353 goto free_mqd; 354 } 355 356 mqd_sdma_v11 = memdup_user(u64_to_user_ptr(mqd_user->mqd), mqd_user->mqd_size); 357 if (IS_ERR(mqd_sdma_v11)) { 358 DRM_ERROR("Failed to read sdma user MQD\n"); 359 r = -ENOMEM; 360 goto free_mqd; 361 } 362 r = amdgpu_userq_input_va_validate(queue, mqd_sdma_v11->csa_va, 363 32); 364 if (r) 365 goto free_mqd; 366 367 userq_props->csa_addr = mqd_sdma_v11->csa_va; 368 kfree(mqd_sdma_v11); 369 } 370 371 queue->userq_prop = userq_props; 372 373 r = mqd_hw_default->init_mqd(adev, (void *)queue->mqd.cpu_ptr, userq_props); 374 if (r) { 375 DRM_ERROR("Failed to initialize MQD for userqueue\n"); 376 goto free_mqd; 377 } 378 379 /* Create BO for FW operations */ 380 r = mes_userq_create_ctx_space(uq_mgr, queue, mqd_user); 381 if (r) { 382 DRM_ERROR("Failed to allocate BO for userqueue (%d)", r); 383 goto free_mqd; 384 } 385 386 /* FW expects WPTR BOs to be mapped into GART */ 387 r = mes_userq_create_wptr_mapping(uq_mgr, queue, userq_props->wptr_gpu_addr); 388 if (r) { 389 DRM_ERROR("Failed to create WPTR mapping\n"); 390 goto free_ctx; 391 } 392 393 return 0; 394 395 free_ctx: 396 amdgpu_userq_destroy_object(uq_mgr, &queue->fw_obj); 397 398 free_mqd: 399 amdgpu_userq_destroy_object(uq_mgr, &queue->mqd); 400 401 free_props: 402 kfree(userq_props); 403 404 return r; 405 } 406 407 static void 408 mes_userq_mqd_destroy(struct amdgpu_userq_mgr *uq_mgr, 409 struct amdgpu_usermode_queue *queue) 410 { 411 amdgpu_userq_destroy_object(uq_mgr, &queue->fw_obj); 412 kfree(queue->userq_prop); 413 amdgpu_userq_destroy_object(uq_mgr, &queue->mqd); 414 } 415 416 static int mes_userq_preempt(struct amdgpu_userq_mgr *uq_mgr, 417 struct amdgpu_usermode_queue *queue) 418 { 419 struct amdgpu_device *adev = uq_mgr->adev; 420 struct mes_suspend_gang_input queue_input; 421 struct amdgpu_userq_obj *ctx = &queue->fw_obj; 422 signed long timeout = 2100000; /* 2100 ms */ 423 u64 fence_gpu_addr; 424 u32 fence_offset; 425 u64 *fence_ptr; 426 int i, r; 427 428 if (queue->state != AMDGPU_USERQ_STATE_MAPPED) 429 return 0; 430 r = amdgpu_device_wb_get(adev, &fence_offset); 431 if (r) 432 return r; 433 434 fence_gpu_addr = adev->wb.gpu_addr + (fence_offset * 4); 435 fence_ptr = (u64 *)&adev->wb.wb[fence_offset]; 436 *fence_ptr = 0; 437 438 memset(&queue_input, 0x0, sizeof(struct mes_suspend_gang_input)); 439 queue_input.gang_context_addr = ctx->gpu_addr + AMDGPU_USERQ_PROC_CTX_SZ; 440 queue_input.suspend_fence_addr = fence_gpu_addr; 441 queue_input.suspend_fence_value = 1; 442 amdgpu_mes_lock(&adev->mes); 443 r = adev->mes.funcs->suspend_gang(&adev->mes, &queue_input); 444 amdgpu_mes_unlock(&adev->mes); 445 if (r) { 446 DRM_ERROR("Failed to suspend gang: %d\n", r); 447 goto out; 448 } 449 450 for (i = 0; i < timeout; i++) { 451 if (*fence_ptr == 1) 452 goto out; 453 udelay(1); 454 } 455 r = -ETIMEDOUT; 456 457 out: 458 amdgpu_device_wb_free(adev, fence_offset); 459 return r; 460 } 461 462 static int mes_userq_restore(struct amdgpu_userq_mgr *uq_mgr, 463 struct amdgpu_usermode_queue *queue) 464 { 465 struct amdgpu_device *adev = uq_mgr->adev; 466 struct mes_resume_gang_input queue_input; 467 struct amdgpu_userq_obj *ctx = &queue->fw_obj; 468 int r; 469 470 if (queue->state == AMDGPU_USERQ_STATE_HUNG) 471 return -EINVAL; 472 if (queue->state != AMDGPU_USERQ_STATE_PREEMPTED) 473 return 0; 474 475 memset(&queue_input, 0x0, sizeof(struct mes_resume_gang_input)); 476 queue_input.gang_context_addr = ctx->gpu_addr + AMDGPU_USERQ_PROC_CTX_SZ; 477 478 amdgpu_mes_lock(&adev->mes); 479 r = adev->mes.funcs->resume_gang(&adev->mes, &queue_input); 480 amdgpu_mes_unlock(&adev->mes); 481 if (r) 482 dev_err(adev->dev, "Failed to resume queue, err (%d)\n", r); 483 return r; 484 } 485 486 const struct amdgpu_userq_funcs userq_mes_funcs = { 487 .mqd_create = mes_userq_mqd_create, 488 .mqd_destroy = mes_userq_mqd_destroy, 489 .unmap = mes_userq_unmap, 490 .map = mes_userq_map, 491 .detect_and_reset = mes_userq_detect_and_reset, 492 .preempt = mes_userq_preempt, 493 .restore = mes_userq_restore, 494 }; 495