1 /* 2 * Copyright 2008 Advanced Micro Devices, Inc. 3 * Copyright 2008 Red Hat Inc. 4 * Copyright 2009 Jerome Glisse. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: Dave Airlie 25 * Alex Deucher 26 * Jerome Glisse 27 */ 28 #include <linux/ktime.h> 29 #include <drm/drmP.h> 30 #include <drm/amdgpu_drm.h> 31 #include "amdgpu.h" 32 33 void amdgpu_gem_object_free(struct drm_gem_object *gobj) 34 { 35 struct amdgpu_bo *robj = gem_to_amdgpu_bo(gobj); 36 37 if (robj) { 38 if (robj->gem_base.import_attach) 39 drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg); 40 amdgpu_mn_unregister(robj); 41 amdgpu_bo_unref(&robj); 42 } 43 } 44 45 int amdgpu_gem_object_create(struct amdgpu_device *adev, unsigned long size, 46 int alignment, u32 initial_domain, 47 u64 flags, bool kernel, 48 struct drm_gem_object **obj) 49 { 50 struct amdgpu_bo *robj; 51 unsigned long max_size; 52 int r; 53 54 *obj = NULL; 55 /* At least align on page size */ 56 if (alignment < PAGE_SIZE) { 57 alignment = PAGE_SIZE; 58 } 59 60 if (!(initial_domain & (AMDGPU_GEM_DOMAIN_GDS | AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA))) { 61 /* Maximum bo size is the unpinned gtt size since we use the gtt to 62 * handle vram to system pool migrations. 63 */ 64 max_size = adev->mc.gtt_size - adev->gart_pin_size; 65 if (size > max_size) { 66 DRM_DEBUG("Allocation size %ldMb bigger than %ldMb limit\n", 67 size >> 20, max_size >> 20); 68 return -ENOMEM; 69 } 70 } 71 retry: 72 r = amdgpu_bo_create(adev, size, alignment, kernel, initial_domain, 73 flags, NULL, NULL, &robj); 74 if (r) { 75 if (r != -ERESTARTSYS) { 76 if (initial_domain == AMDGPU_GEM_DOMAIN_VRAM) { 77 initial_domain |= AMDGPU_GEM_DOMAIN_GTT; 78 goto retry; 79 } 80 DRM_ERROR("Failed to allocate GEM object (%ld, %d, %u, %d)\n", 81 size, initial_domain, alignment, r); 82 } 83 return r; 84 } 85 *obj = &robj->gem_base; 86 robj->pid = task_pid_nr(current); 87 88 mutex_lock(&adev->gem.mutex); 89 list_add_tail(&robj->list, &adev->gem.objects); 90 mutex_unlock(&adev->gem.mutex); 91 92 return 0; 93 } 94 95 int amdgpu_gem_init(struct amdgpu_device *adev) 96 { 97 INIT_LIST_HEAD(&adev->gem.objects); 98 return 0; 99 } 100 101 void amdgpu_gem_fini(struct amdgpu_device *adev) 102 { 103 amdgpu_bo_force_delete(adev); 104 } 105 106 /* 107 * Call from drm_gem_handle_create which appear in both new and open ioctl 108 * case. 109 */ 110 int amdgpu_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv) 111 { 112 struct amdgpu_bo *rbo = gem_to_amdgpu_bo(obj); 113 struct amdgpu_device *adev = rbo->adev; 114 struct amdgpu_fpriv *fpriv = file_priv->driver_priv; 115 struct amdgpu_vm *vm = &fpriv->vm; 116 struct amdgpu_bo_va *bo_va; 117 int r; 118 r = amdgpu_bo_reserve(rbo, false); 119 if (r) 120 return r; 121 122 bo_va = amdgpu_vm_bo_find(vm, rbo); 123 if (!bo_va) { 124 bo_va = amdgpu_vm_bo_add(adev, vm, rbo); 125 } else { 126 ++bo_va->ref_count; 127 } 128 amdgpu_bo_unreserve(rbo); 129 return 0; 130 } 131 132 void amdgpu_gem_object_close(struct drm_gem_object *obj, 133 struct drm_file *file_priv) 134 { 135 struct amdgpu_bo *rbo = gem_to_amdgpu_bo(obj); 136 struct amdgpu_device *adev = rbo->adev; 137 struct amdgpu_fpriv *fpriv = file_priv->driver_priv; 138 struct amdgpu_vm *vm = &fpriv->vm; 139 struct amdgpu_bo_va *bo_va; 140 int r; 141 r = amdgpu_bo_reserve(rbo, true); 142 if (r) { 143 dev_err(adev->dev, "leaking bo va because " 144 "we fail to reserve bo (%d)\n", r); 145 return; 146 } 147 bo_va = amdgpu_vm_bo_find(vm, rbo); 148 if (bo_va) { 149 if (--bo_va->ref_count == 0) { 150 amdgpu_vm_bo_rmv(adev, bo_va); 151 } 152 } 153 amdgpu_bo_unreserve(rbo); 154 } 155 156 static int amdgpu_gem_handle_lockup(struct amdgpu_device *adev, int r) 157 { 158 if (r == -EDEADLK) { 159 r = amdgpu_gpu_reset(adev); 160 if (!r) 161 r = -EAGAIN; 162 } 163 return r; 164 } 165 166 /* 167 * GEM ioctls. 168 */ 169 int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data, 170 struct drm_file *filp) 171 { 172 struct amdgpu_device *adev = dev->dev_private; 173 union drm_amdgpu_gem_create *args = data; 174 uint64_t size = args->in.bo_size; 175 struct drm_gem_object *gobj; 176 uint32_t handle; 177 bool kernel = false; 178 int r; 179 180 /* create a gem object to contain this object in */ 181 if (args->in.domains & (AMDGPU_GEM_DOMAIN_GDS | 182 AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA)) { 183 kernel = true; 184 if (args->in.domains == AMDGPU_GEM_DOMAIN_GDS) 185 size = size << AMDGPU_GDS_SHIFT; 186 else if (args->in.domains == AMDGPU_GEM_DOMAIN_GWS) 187 size = size << AMDGPU_GWS_SHIFT; 188 else if (args->in.domains == AMDGPU_GEM_DOMAIN_OA) 189 size = size << AMDGPU_OA_SHIFT; 190 else { 191 r = -EINVAL; 192 goto error_unlock; 193 } 194 } 195 size = roundup(size, PAGE_SIZE); 196 197 r = amdgpu_gem_object_create(adev, size, args->in.alignment, 198 (u32)(0xffffffff & args->in.domains), 199 args->in.domain_flags, 200 kernel, &gobj); 201 if (r) 202 goto error_unlock; 203 204 r = drm_gem_handle_create(filp, gobj, &handle); 205 /* drop reference from allocate - handle holds it now */ 206 drm_gem_object_unreference_unlocked(gobj); 207 if (r) 208 goto error_unlock; 209 210 memset(args, 0, sizeof(*args)); 211 args->out.handle = handle; 212 return 0; 213 214 error_unlock: 215 r = amdgpu_gem_handle_lockup(adev, r); 216 return r; 217 } 218 219 int amdgpu_gem_userptr_ioctl(struct drm_device *dev, void *data, 220 struct drm_file *filp) 221 { 222 struct amdgpu_device *adev = dev->dev_private; 223 struct drm_amdgpu_gem_userptr *args = data; 224 struct drm_gem_object *gobj; 225 struct amdgpu_bo *bo; 226 uint32_t handle; 227 int r; 228 229 if (offset_in_page(args->addr | args->size)) 230 return -EINVAL; 231 232 /* reject unknown flag values */ 233 if (args->flags & ~(AMDGPU_GEM_USERPTR_READONLY | 234 AMDGPU_GEM_USERPTR_ANONONLY | AMDGPU_GEM_USERPTR_VALIDATE | 235 AMDGPU_GEM_USERPTR_REGISTER)) 236 return -EINVAL; 237 238 if (!(args->flags & AMDGPU_GEM_USERPTR_READONLY) && ( 239 !(args->flags & AMDGPU_GEM_USERPTR_ANONONLY) || 240 !(args->flags & AMDGPU_GEM_USERPTR_REGISTER))) { 241 242 /* if we want to write to it we must require anonymous 243 memory and install a MMU notifier */ 244 return -EACCES; 245 } 246 247 /* create a gem object to contain this object in */ 248 r = amdgpu_gem_object_create(adev, args->size, 0, 249 AMDGPU_GEM_DOMAIN_CPU, 0, 250 0, &gobj); 251 if (r) 252 goto handle_lockup; 253 254 bo = gem_to_amdgpu_bo(gobj); 255 r = amdgpu_ttm_tt_set_userptr(bo->tbo.ttm, args->addr, args->flags); 256 if (r) 257 goto release_object; 258 259 if (args->flags & AMDGPU_GEM_USERPTR_REGISTER) { 260 r = amdgpu_mn_register(bo, args->addr); 261 if (r) 262 goto release_object; 263 } 264 265 if (args->flags & AMDGPU_GEM_USERPTR_VALIDATE) { 266 down_read(¤t->mm->mmap_sem); 267 r = amdgpu_bo_reserve(bo, true); 268 if (r) { 269 up_read(¤t->mm->mmap_sem); 270 goto release_object; 271 } 272 273 amdgpu_ttm_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_GTT); 274 r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false); 275 amdgpu_bo_unreserve(bo); 276 up_read(¤t->mm->mmap_sem); 277 if (r) 278 goto release_object; 279 } 280 281 r = drm_gem_handle_create(filp, gobj, &handle); 282 /* drop reference from allocate - handle holds it now */ 283 drm_gem_object_unreference_unlocked(gobj); 284 if (r) 285 goto handle_lockup; 286 287 args->handle = handle; 288 return 0; 289 290 release_object: 291 drm_gem_object_unreference_unlocked(gobj); 292 293 handle_lockup: 294 r = amdgpu_gem_handle_lockup(adev, r); 295 296 return r; 297 } 298 299 int amdgpu_mode_dumb_mmap(struct drm_file *filp, 300 struct drm_device *dev, 301 uint32_t handle, uint64_t *offset_p) 302 { 303 struct drm_gem_object *gobj; 304 struct amdgpu_bo *robj; 305 306 gobj = drm_gem_object_lookup(dev, filp, handle); 307 if (gobj == NULL) { 308 return -ENOENT; 309 } 310 robj = gem_to_amdgpu_bo(gobj); 311 if (amdgpu_ttm_tt_has_userptr(robj->tbo.ttm) || 312 (robj->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)) { 313 drm_gem_object_unreference_unlocked(gobj); 314 return -EPERM; 315 } 316 *offset_p = amdgpu_bo_mmap_offset(robj); 317 drm_gem_object_unreference_unlocked(gobj); 318 return 0; 319 } 320 321 int amdgpu_gem_mmap_ioctl(struct drm_device *dev, void *data, 322 struct drm_file *filp) 323 { 324 union drm_amdgpu_gem_mmap *args = data; 325 uint32_t handle = args->in.handle; 326 memset(args, 0, sizeof(*args)); 327 return amdgpu_mode_dumb_mmap(filp, dev, handle, &args->out.addr_ptr); 328 } 329 330 /** 331 * amdgpu_gem_timeout - calculate jiffies timeout from absolute value 332 * 333 * @timeout_ns: timeout in ns 334 * 335 * Calculate the timeout in jiffies from an absolute timeout in ns. 336 */ 337 unsigned long amdgpu_gem_timeout(uint64_t timeout_ns) 338 { 339 unsigned long timeout_jiffies; 340 ktime_t timeout; 341 342 /* clamp timeout if it's to large */ 343 if (((int64_t)timeout_ns) < 0) 344 return MAX_SCHEDULE_TIMEOUT; 345 346 timeout = ktime_sub(ns_to_ktime(timeout_ns), ktime_get()); 347 if (ktime_to_ns(timeout) < 0) 348 return 0; 349 350 timeout_jiffies = nsecs_to_jiffies(ktime_to_ns(timeout)); 351 /* clamp timeout to avoid unsigned-> signed overflow */ 352 if (timeout_jiffies > MAX_SCHEDULE_TIMEOUT ) 353 return MAX_SCHEDULE_TIMEOUT - 1; 354 355 return timeout_jiffies; 356 } 357 358 int amdgpu_gem_wait_idle_ioctl(struct drm_device *dev, void *data, 359 struct drm_file *filp) 360 { 361 struct amdgpu_device *adev = dev->dev_private; 362 union drm_amdgpu_gem_wait_idle *args = data; 363 struct drm_gem_object *gobj; 364 struct amdgpu_bo *robj; 365 uint32_t handle = args->in.handle; 366 unsigned long timeout = amdgpu_gem_timeout(args->in.timeout); 367 int r = 0; 368 long ret; 369 370 gobj = drm_gem_object_lookup(dev, filp, handle); 371 if (gobj == NULL) { 372 return -ENOENT; 373 } 374 robj = gem_to_amdgpu_bo(gobj); 375 if (timeout == 0) 376 ret = reservation_object_test_signaled_rcu(robj->tbo.resv, true); 377 else 378 ret = reservation_object_wait_timeout_rcu(robj->tbo.resv, true, true, timeout); 379 380 /* ret == 0 means not signaled, 381 * ret > 0 means signaled 382 * ret < 0 means interrupted before timeout 383 */ 384 if (ret >= 0) { 385 memset(args, 0, sizeof(*args)); 386 args->out.status = (ret == 0); 387 } else 388 r = ret; 389 390 drm_gem_object_unreference_unlocked(gobj); 391 r = amdgpu_gem_handle_lockup(adev, r); 392 return r; 393 } 394 395 int amdgpu_gem_metadata_ioctl(struct drm_device *dev, void *data, 396 struct drm_file *filp) 397 { 398 struct drm_amdgpu_gem_metadata *args = data; 399 struct drm_gem_object *gobj; 400 struct amdgpu_bo *robj; 401 int r = -1; 402 403 DRM_DEBUG("%d \n", args->handle); 404 gobj = drm_gem_object_lookup(dev, filp, args->handle); 405 if (gobj == NULL) 406 return -ENOENT; 407 robj = gem_to_amdgpu_bo(gobj); 408 409 r = amdgpu_bo_reserve(robj, false); 410 if (unlikely(r != 0)) 411 goto out; 412 413 if (args->op == AMDGPU_GEM_METADATA_OP_GET_METADATA) { 414 amdgpu_bo_get_tiling_flags(robj, &args->data.tiling_info); 415 r = amdgpu_bo_get_metadata(robj, args->data.data, 416 sizeof(args->data.data), 417 &args->data.data_size_bytes, 418 &args->data.flags); 419 } else if (args->op == AMDGPU_GEM_METADATA_OP_SET_METADATA) { 420 if (args->data.data_size_bytes > sizeof(args->data.data)) { 421 r = -EINVAL; 422 goto unreserve; 423 } 424 r = amdgpu_bo_set_tiling_flags(robj, args->data.tiling_info); 425 if (!r) 426 r = amdgpu_bo_set_metadata(robj, args->data.data, 427 args->data.data_size_bytes, 428 args->data.flags); 429 } 430 431 unreserve: 432 amdgpu_bo_unreserve(robj); 433 out: 434 drm_gem_object_unreference_unlocked(gobj); 435 return r; 436 } 437 438 /** 439 * amdgpu_gem_va_update_vm -update the bo_va in its VM 440 * 441 * @adev: amdgpu_device pointer 442 * @bo_va: bo_va to update 443 * 444 * Update the bo_va directly after setting it's address. Errors are not 445 * vital here, so they are not reported back to userspace. 446 */ 447 static void amdgpu_gem_va_update_vm(struct amdgpu_device *adev, 448 struct amdgpu_bo_va *bo_va, uint32_t operation) 449 { 450 struct ttm_validate_buffer tv, *entry; 451 struct amdgpu_bo_list_entry *vm_bos; 452 struct ww_acquire_ctx ticket; 453 struct list_head list, duplicates; 454 unsigned domain; 455 int r; 456 457 INIT_LIST_HEAD(&list); 458 INIT_LIST_HEAD(&duplicates); 459 460 tv.bo = &bo_va->bo->tbo; 461 tv.shared = true; 462 list_add(&tv.head, &list); 463 464 vm_bos = amdgpu_vm_get_bos(adev, bo_va->vm, &list); 465 if (!vm_bos) 466 return; 467 468 /* Provide duplicates to avoid -EALREADY */ 469 r = ttm_eu_reserve_buffers(&ticket, &list, true, &duplicates); 470 if (r) 471 goto error_free; 472 473 list_for_each_entry(entry, &list, head) { 474 domain = amdgpu_mem_type_to_domain(entry->bo->mem.mem_type); 475 /* if anything is swapped out don't swap it in here, 476 just abort and wait for the next CS */ 477 if (domain == AMDGPU_GEM_DOMAIN_CPU) 478 goto error_unreserve; 479 } 480 list_for_each_entry(entry, &duplicates, head) { 481 domain = amdgpu_mem_type_to_domain(entry->bo->mem.mem_type); 482 /* if anything is swapped out don't swap it in here, 483 just abort and wait for the next CS */ 484 if (domain == AMDGPU_GEM_DOMAIN_CPU) 485 goto error_unreserve; 486 } 487 488 r = amdgpu_vm_update_page_directory(adev, bo_va->vm); 489 if (r) 490 goto error_unreserve; 491 492 r = amdgpu_vm_clear_freed(adev, bo_va->vm); 493 if (r) 494 goto error_unreserve; 495 496 if (operation == AMDGPU_VA_OP_MAP) 497 r = amdgpu_vm_bo_update(adev, bo_va, &bo_va->bo->tbo.mem); 498 499 error_unreserve: 500 ttm_eu_backoff_reservation(&ticket, &list); 501 502 error_free: 503 drm_free_large(vm_bos); 504 505 if (r && r != -ERESTARTSYS) 506 DRM_ERROR("Couldn't update BO_VA (%d)\n", r); 507 } 508 509 510 511 int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data, 512 struct drm_file *filp) 513 { 514 struct drm_amdgpu_gem_va *args = data; 515 struct drm_gem_object *gobj; 516 struct amdgpu_device *adev = dev->dev_private; 517 struct amdgpu_fpriv *fpriv = filp->driver_priv; 518 struct amdgpu_bo *rbo; 519 struct amdgpu_bo_va *bo_va; 520 struct ttm_validate_buffer tv, tv_pd; 521 struct ww_acquire_ctx ticket; 522 struct list_head list, duplicates; 523 uint32_t invalid_flags, va_flags = 0; 524 int r = 0; 525 526 if (!adev->vm_manager.enabled) 527 return -ENOTTY; 528 529 if (args->va_address < AMDGPU_VA_RESERVED_SIZE) { 530 dev_err(&dev->pdev->dev, 531 "va_address 0x%lX is in reserved area 0x%X\n", 532 (unsigned long)args->va_address, 533 AMDGPU_VA_RESERVED_SIZE); 534 return -EINVAL; 535 } 536 537 invalid_flags = ~(AMDGPU_VM_DELAY_UPDATE | AMDGPU_VM_PAGE_READABLE | 538 AMDGPU_VM_PAGE_WRITEABLE | AMDGPU_VM_PAGE_EXECUTABLE); 539 if ((args->flags & invalid_flags)) { 540 dev_err(&dev->pdev->dev, "invalid flags 0x%08X vs 0x%08X\n", 541 args->flags, invalid_flags); 542 return -EINVAL; 543 } 544 545 switch (args->operation) { 546 case AMDGPU_VA_OP_MAP: 547 case AMDGPU_VA_OP_UNMAP: 548 break; 549 default: 550 dev_err(&dev->pdev->dev, "unsupported operation %d\n", 551 args->operation); 552 return -EINVAL; 553 } 554 555 gobj = drm_gem_object_lookup(dev, filp, args->handle); 556 if (gobj == NULL) 557 return -ENOENT; 558 rbo = gem_to_amdgpu_bo(gobj); 559 INIT_LIST_HEAD(&list); 560 INIT_LIST_HEAD(&duplicates); 561 tv.bo = &rbo->tbo; 562 tv.shared = true; 563 list_add(&tv.head, &list); 564 565 if (args->operation == AMDGPU_VA_OP_MAP) { 566 tv_pd.bo = &fpriv->vm.page_directory->tbo; 567 tv_pd.shared = true; 568 list_add(&tv_pd.head, &list); 569 } 570 r = ttm_eu_reserve_buffers(&ticket, &list, true, &duplicates); 571 if (r) { 572 drm_gem_object_unreference_unlocked(gobj); 573 return r; 574 } 575 576 bo_va = amdgpu_vm_bo_find(&fpriv->vm, rbo); 577 if (!bo_va) { 578 ttm_eu_backoff_reservation(&ticket, &list); 579 drm_gem_object_unreference_unlocked(gobj); 580 return -ENOENT; 581 } 582 583 switch (args->operation) { 584 case AMDGPU_VA_OP_MAP: 585 if (args->flags & AMDGPU_VM_PAGE_READABLE) 586 va_flags |= AMDGPU_PTE_READABLE; 587 if (args->flags & AMDGPU_VM_PAGE_WRITEABLE) 588 va_flags |= AMDGPU_PTE_WRITEABLE; 589 if (args->flags & AMDGPU_VM_PAGE_EXECUTABLE) 590 va_flags |= AMDGPU_PTE_EXECUTABLE; 591 r = amdgpu_vm_bo_map(adev, bo_va, args->va_address, 592 args->offset_in_bo, args->map_size, 593 va_flags); 594 break; 595 case AMDGPU_VA_OP_UNMAP: 596 r = amdgpu_vm_bo_unmap(adev, bo_va, args->va_address); 597 break; 598 default: 599 break; 600 } 601 ttm_eu_backoff_reservation(&ticket, &list); 602 if (!r && !(args->flags & AMDGPU_VM_DELAY_UPDATE)) 603 amdgpu_gem_va_update_vm(adev, bo_va, args->operation); 604 605 drm_gem_object_unreference_unlocked(gobj); 606 return r; 607 } 608 609 int amdgpu_gem_op_ioctl(struct drm_device *dev, void *data, 610 struct drm_file *filp) 611 { 612 struct drm_amdgpu_gem_op *args = data; 613 struct drm_gem_object *gobj; 614 struct amdgpu_bo *robj; 615 int r; 616 617 gobj = drm_gem_object_lookup(dev, filp, args->handle); 618 if (gobj == NULL) { 619 return -ENOENT; 620 } 621 robj = gem_to_amdgpu_bo(gobj); 622 623 r = amdgpu_bo_reserve(robj, false); 624 if (unlikely(r)) 625 goto out; 626 627 switch (args->op) { 628 case AMDGPU_GEM_OP_GET_GEM_CREATE_INFO: { 629 struct drm_amdgpu_gem_create_in info; 630 void __user *out = (void __user *)(long)args->value; 631 632 info.bo_size = robj->gem_base.size; 633 info.alignment = robj->tbo.mem.page_alignment << PAGE_SHIFT; 634 info.domains = robj->initial_domain; 635 info.domain_flags = robj->flags; 636 amdgpu_bo_unreserve(robj); 637 if (copy_to_user(out, &info, sizeof(info))) 638 r = -EFAULT; 639 break; 640 } 641 case AMDGPU_GEM_OP_SET_PLACEMENT: 642 if (amdgpu_ttm_tt_has_userptr(robj->tbo.ttm)) { 643 r = -EPERM; 644 amdgpu_bo_unreserve(robj); 645 break; 646 } 647 robj->initial_domain = args->value & (AMDGPU_GEM_DOMAIN_VRAM | 648 AMDGPU_GEM_DOMAIN_GTT | 649 AMDGPU_GEM_DOMAIN_CPU); 650 amdgpu_bo_unreserve(robj); 651 break; 652 default: 653 amdgpu_bo_unreserve(robj); 654 r = -EINVAL; 655 } 656 657 out: 658 drm_gem_object_unreference_unlocked(gobj); 659 return r; 660 } 661 662 int amdgpu_mode_dumb_create(struct drm_file *file_priv, 663 struct drm_device *dev, 664 struct drm_mode_create_dumb *args) 665 { 666 struct amdgpu_device *adev = dev->dev_private; 667 struct drm_gem_object *gobj; 668 uint32_t handle; 669 int r; 670 671 args->pitch = amdgpu_align_pitch(adev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8); 672 args->size = (u64)args->pitch * args->height; 673 args->size = ALIGN(args->size, PAGE_SIZE); 674 675 r = amdgpu_gem_object_create(adev, args->size, 0, 676 AMDGPU_GEM_DOMAIN_VRAM, 677 AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED, 678 ttm_bo_type_device, 679 &gobj); 680 if (r) 681 return -ENOMEM; 682 683 r = drm_gem_handle_create(file_priv, gobj, &handle); 684 /* drop reference from allocate - handle holds it now */ 685 drm_gem_object_unreference_unlocked(gobj); 686 if (r) { 687 return r; 688 } 689 args->handle = handle; 690 return 0; 691 } 692 693 #if defined(CONFIG_DEBUG_FS) 694 static int amdgpu_debugfs_gem_info(struct seq_file *m, void *data) 695 { 696 struct drm_info_node *node = (struct drm_info_node *)m->private; 697 struct drm_device *dev = node->minor->dev; 698 struct amdgpu_device *adev = dev->dev_private; 699 struct amdgpu_bo *rbo; 700 unsigned i = 0; 701 702 mutex_lock(&adev->gem.mutex); 703 list_for_each_entry(rbo, &adev->gem.objects, list) { 704 unsigned domain; 705 const char *placement; 706 707 domain = amdgpu_mem_type_to_domain(rbo->tbo.mem.mem_type); 708 switch (domain) { 709 case AMDGPU_GEM_DOMAIN_VRAM: 710 placement = "VRAM"; 711 break; 712 case AMDGPU_GEM_DOMAIN_GTT: 713 placement = " GTT"; 714 break; 715 case AMDGPU_GEM_DOMAIN_CPU: 716 default: 717 placement = " CPU"; 718 break; 719 } 720 seq_printf(m, "bo[0x%08x] %8ldkB %8ldMB %s pid %8ld\n", 721 i, amdgpu_bo_size(rbo) >> 10, amdgpu_bo_size(rbo) >> 20, 722 placement, (unsigned long)rbo->pid); 723 i++; 724 } 725 mutex_unlock(&adev->gem.mutex); 726 return 0; 727 } 728 729 static struct drm_info_list amdgpu_debugfs_gem_list[] = { 730 {"amdgpu_gem_info", &amdgpu_debugfs_gem_info, 0, NULL}, 731 }; 732 #endif 733 734 int amdgpu_gem_debugfs_init(struct amdgpu_device *adev) 735 { 736 #if defined(CONFIG_DEBUG_FS) 737 return amdgpu_debugfs_add_files(adev, amdgpu_debugfs_gem_list, 1); 738 #endif 739 return 0; 740 } 741