drivers/gpu/drm/radeon/radeon_gem.c

   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 <drm/drmP.h>
  29 #include <drm/radeon_drm.h>
  30 #include "radeon.h"
  31
  32 void radeon_gem_object_free(struct drm_gem_object *gobj)
  33 {
  34         struct radeon_bo *robj = gem_to_radeon_bo(gobj);
  35
  36         if (robj) {
  37                 if (robj->gem_base.import_attach)
  38                         drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg);
  39                 radeon_bo_unref(&robj);
  40         }
  41 }
  42
  43 int radeon_gem_object_create(struct radeon_device *rdev, unsigned long size,
  44                                 int alignment, int initial_domain,
  45                                 u32 flags, bool kernel,
  46                                 struct drm_gem_object **obj)
  47 {
  48         struct radeon_bo *robj;
  49         unsigned long max_size;
  50         int r;
  51
  52         *obj = NULL;
  53         /* At least align on page size */
  54         if (alignment < PAGE_SIZE) {
  55                 alignment = PAGE_SIZE;
  56         }
  57
  58         /* Maximum bo size is the unpinned gtt size since we use the gtt to
  59          * handle vram to system pool migrations.
  60          */
  61         max_size = rdev->mc.gtt_size - rdev->gart_pin_size;
  62         if (size > max_size) {
  63                 DRM_DEBUG("Allocation size %ldMb bigger than %ldMb limit\n",
  64                           size >> 20, max_size >> 20);
  65                 return -ENOMEM;
  66         }
  67
  68 retry:
  69         r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain,
  70                              flags, NULL, &robj);
  71         if (r) {
  72                 if (r != -ERESTARTSYS) {
  73                         if (initial_domain == RADEON_GEM_DOMAIN_VRAM) {
  74                                 initial_domain |= RADEON_GEM_DOMAIN_GTT;
  75                                 goto retry;
  76                         }
  77                         DRM_ERROR("Failed to allocate GEM object (%ld, %d, %u, %d)\n",
  78                                   size, initial_domain, alignment, r);
  79                 }
  80                 return r;
  81         }
  82         *obj = &robj->gem_base;
  83         robj->pid = task_pid_nr(current);
  84
  85         mutex_lock(&rdev->gem.mutex);
  86         list_add_tail(&robj->list, &rdev->gem.objects);
  87         mutex_unlock(&rdev->gem.mutex);
  88
  89         return 0;
  90 }
  91
  92 static int radeon_gem_set_domain(struct drm_gem_object *gobj,
  93                           uint32_t rdomain, uint32_t wdomain)
  94 {
  95         struct radeon_bo *robj;
  96         uint32_t domain;
  97         int r;
  98
  99         /* FIXME: reeimplement */
 100         robj = gem_to_radeon_bo(gobj);
 101         /* work out where to validate the buffer to */
 102         domain = wdomain;
 103         if (!domain) {
 104                 domain = rdomain;
 105         }
 106         if (!domain) {
 107                 /* Do nothings */
 108                 printk(KERN_WARNING "Set domain without domain !\n");
 109                 return 0;
 110         }
 111         if (domain == RADEON_GEM_DOMAIN_CPU) {
 112                 /* Asking for cpu access wait for object idle */
 113                 r = radeon_bo_wait(robj, NULL, false);
 114                 if (r) {
 115                         printk(KERN_ERR "Failed to wait for object !\n");
 116                         return r;
 117                 }
 118         }
 119         return 0;
 120 }
 121
 122 int radeon_gem_init(struct radeon_device *rdev)
 123 {
 124         INIT_LIST_HEAD(&rdev->gem.objects);
 125         return 0;
 126 }
 127
 128 void radeon_gem_fini(struct radeon_device *rdev)
 129 {
 130         radeon_bo_force_delete(rdev);
 131 }
 132
 133 /*
 134  * Call from drm_gem_handle_create which appear in both new and open ioctl
 135  * case.
 136  */
 137 int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
 138 {
 139         struct radeon_bo *rbo = gem_to_radeon_bo(obj);
 140         struct radeon_device *rdev = rbo->rdev;
 141         struct radeon_fpriv *fpriv = file_priv->driver_priv;
 142         struct radeon_vm *vm = &fpriv->vm;
 143         struct radeon_bo_va *bo_va;
 144         int r;
 145
 146         if (rdev->family < CHIP_CAYMAN) {
 147                 return 0;
 148         }
 149
 150         r = radeon_bo_reserve(rbo, false);
 151         if (r) {
 152                 return r;
 153         }
 154
 155         bo_va = radeon_vm_bo_find(vm, rbo);
 156         if (!bo_va) {
 157                 bo_va = radeon_vm_bo_add(rdev, vm, rbo);
 158         } else {
 159                 ++bo_va->ref_count;
 160         }
 161         radeon_bo_unreserve(rbo);
 162
 163         return 0;
 164 }
 165
 166 void radeon_gem_object_close(struct drm_gem_object *obj,
 167                              struct drm_file *file_priv)
 168 {
 169         struct radeon_bo *rbo = gem_to_radeon_bo(obj);
 170         struct radeon_device *rdev = rbo->rdev;
 171         struct radeon_fpriv *fpriv = file_priv->driver_priv;
 172         struct radeon_vm *vm = &fpriv->vm;
 173         struct radeon_bo_va *bo_va;
 174         int r;
 175
 176         if (rdev->family < CHIP_CAYMAN) {
 177                 return;
 178         }
 179
 180         r = radeon_bo_reserve(rbo, true);
 181         if (r) {
 182                 dev_err(rdev->dev, "leaking bo va because "
 183                         "we fail to reserve bo (%d)\n", r);
 184                 return;
 185         }
 186         bo_va = radeon_vm_bo_find(vm, rbo);
 187         if (bo_va) {
 188                 if (--bo_va->ref_count == 0) {
 189                         radeon_vm_bo_rmv(rdev, bo_va);
 190                 }
 191         }
 192         radeon_bo_unreserve(rbo);
 193 }
 194
 195 static int radeon_gem_handle_lockup(struct radeon_device *rdev, int r)
 196 {
 197         if (r == -EDEADLK) {
 198                 r = radeon_gpu_reset(rdev);
 199                 if (!r)
 200                         r = -EAGAIN;
 201         }
 202         return r;
 203 }
 204
 205 /*
 206  * GEM ioctls.
 207  */
 208 int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
 209                           struct drm_file *filp)
 210 {
 211         struct radeon_device *rdev = dev->dev_private;
 212         struct drm_radeon_gem_info *args = data;
 213         struct ttm_mem_type_manager *man;
 214
 215         man = &rdev->mman.bdev.man[TTM_PL_VRAM];
 216
 217         args->vram_size = rdev->mc.real_vram_size;
 218         args->vram_visible = (u64)man->size << PAGE_SHIFT;
 219         args->vram_visible -= rdev->vram_pin_size;
 220         args->gart_size = rdev->mc.gtt_size;
 221         args->gart_size -= rdev->gart_pin_size;
 222
 223         return 0;
 224 }
 225
 226 int radeon_gem_pread_ioctl(struct drm_device *dev, void *data,
 227                            struct drm_file *filp)
 228 {
 229         /* TODO: implement */
 230         DRM_ERROR("unimplemented %s\n", __func__);
 231         return -ENOSYS;
 232 }
 233
 234 int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data,
 235                             struct drm_file *filp)
 236 {
 237         /* TODO: implement */
 238         DRM_ERROR("unimplemented %s\n", __func__);
 239         return -ENOSYS;
 240 }
 241
 242 int radeon_gem_create_ioctl(struct drm_device *dev, void *data,
 243                             struct drm_file *filp)
 244 {
 245         struct radeon_device *rdev = dev->dev_private;
 246         struct drm_radeon_gem_create *args = data;
 247         struct drm_gem_object *gobj;
 248         uint32_t handle;
 249         int r;
 250
 251         down_read(&rdev->exclusive_lock);
 252         /* create a gem object to contain this object in */
 253         args->size = roundup(args->size, PAGE_SIZE);
 254         r = radeon_gem_object_create(rdev, args->size, args->alignment,
 255                                      args->initial_domain, args->flags,
 256                                      false, &gobj);
 257         if (r) {
 258                 up_read(&rdev->exclusive_lock);
 259                 r = radeon_gem_handle_lockup(rdev, r);
 260                 return r;
 261         }
 262         r = drm_gem_handle_create(filp, gobj, &handle);
 263         /* drop reference from allocate - handle holds it now */
 264         drm_gem_object_unreference_unlocked(gobj);
 265         if (r) {
 266                 up_read(&rdev->exclusive_lock);
 267                 r = radeon_gem_handle_lockup(rdev, r);
 268                 return r;
 269         }
 270         args->handle = handle;
 271         up_read(&rdev->exclusive_lock);
 272         return 0;
 273 }
 274
 275 int radeon_gem_userptr_ioctl(struct drm_device *dev, void *data,
 276                              struct drm_file *filp)
 277 {
 278         struct radeon_device *rdev = dev->dev_private;
 279         struct drm_radeon_gem_userptr *args = data;
 280         struct drm_gem_object *gobj;
 281         struct radeon_bo *bo;
 282         uint32_t handle;
 283         int r;
 284
 285         if (offset_in_page(args->addr | args->size))
 286                 return -EINVAL;
 287
 288         /* reject unknown flag values */
 289         if (args->flags & ~(RADEON_GEM_USERPTR_READONLY |
 290             RADEON_GEM_USERPTR_ANONONLY | RADEON_GEM_USERPTR_VALIDATE |
 291             RADEON_GEM_USERPTR_REGISTER))
 292                 return -EINVAL;
 293
 294         if (args->flags & RADEON_GEM_USERPTR_READONLY) {
 295                 /* readonly pages not tested on older hardware */
 296                 if (rdev->family < CHIP_R600)
 297                         return -EINVAL;
 298
 299         } else if (!(args->flags & RADEON_GEM_USERPTR_ANONONLY) ||
 300                    !(args->flags & RADEON_GEM_USERPTR_REGISTER)) {
 301
 302                 /* if we want to write to it we must require anonymous
 303                    memory and install a MMU notifier */
 304                 return -EACCES;
 305         }
 306
 307         down_read(&rdev->exclusive_lock);
 308
 309         /* create a gem object to contain this object in */
 310         r = radeon_gem_object_create(rdev, args->size, 0,
 311                                      RADEON_GEM_DOMAIN_CPU, 0,
 312                                      false, &gobj);
 313         if (r)
 314                 goto handle_lockup;
 315
 316         bo = gem_to_radeon_bo(gobj);
 317         r = radeon_ttm_tt_set_userptr(bo->tbo.ttm, args->addr, args->flags);
 318         if (r)
 319                 goto release_object;
 320
 321         if (args->flags & RADEON_GEM_USERPTR_REGISTER) {
 322                 r = radeon_mn_register(bo, args->addr);
 323                 if (r)
 324                         goto release_object;
 325         }
 326
 327         if (args->flags & RADEON_GEM_USERPTR_VALIDATE) {
 328                 down_read(&current->mm->mmap_sem);
 329                 r = radeon_bo_reserve(bo, true);
 330                 if (r) {
 331                         up_read(&current->mm->mmap_sem);
 332                         goto release_object;
 333                 }
 334
 335                 radeon_ttm_placement_from_domain(bo, RADEON_GEM_DOMAIN_GTT);
 336                 r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false);
 337                 radeon_bo_unreserve(bo);
 338                 up_read(&current->mm->mmap_sem);
 339                 if (r)
 340                         goto release_object;
 341         }
 342
 343         r = drm_gem_handle_create(filp, gobj, &handle);
 344         /* drop reference from allocate - handle holds it now */
 345         drm_gem_object_unreference_unlocked(gobj);
 346         if (r)
 347                 goto handle_lockup;
 348
 349         args->handle = handle;
 350         up_read(&rdev->exclusive_lock);
 351         return 0;
 352
 353 release_object:
 354         drm_gem_object_unreference_unlocked(gobj);
 355
 356 handle_lockup:
 357         up_read(&rdev->exclusive_lock);
 358         r = radeon_gem_handle_lockup(rdev, r);
 359
 360         return r;
 361 }
 362
 363 int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data,
 364                                 struct drm_file *filp)
 365 {
 366         /* transition the BO to a domain -
 367          * just validate the BO into a certain domain */
 368         struct radeon_device *rdev = dev->dev_private;
 369         struct drm_radeon_gem_set_domain *args = data;
 370         struct drm_gem_object *gobj;
 371         struct radeon_bo *robj;
 372         int r;
 373
 374         /* for now if someone requests domain CPU -
 375          * just make sure the buffer is finished with */
 376         down_read(&rdev->exclusive_lock);
 377
 378         /* just do a BO wait for now */
 379         gobj = drm_gem_object_lookup(dev, filp, args->handle);
 380         if (gobj == NULL) {
 381                 up_read(&rdev->exclusive_lock);
 382                 return -ENOENT;
 383         }
 384         robj = gem_to_radeon_bo(gobj);
 385
 386         r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain);
 387
 388         drm_gem_object_unreference_unlocked(gobj);
 389         up_read(&rdev->exclusive_lock);
 390         r = radeon_gem_handle_lockup(robj->rdev, r);
 391         return r;
 392 }
 393
 394 int radeon_mode_dumb_mmap(struct drm_file *filp,
 395                           struct drm_device *dev,
 396                           uint32_t handle, uint64_t *offset_p)
 397 {
 398         struct drm_gem_object *gobj;
 399         struct radeon_bo *robj;
 400
 401         gobj = drm_gem_object_lookup(dev, filp, handle);
 402         if (gobj == NULL) {
 403                 return -ENOENT;
 404         }
 405         robj = gem_to_radeon_bo(gobj);
 406         if (radeon_ttm_tt_has_userptr(robj->tbo.ttm)) {
 407                 drm_gem_object_unreference_unlocked(gobj);
 408                 return -EPERM;
 409         }
 410         *offset_p = radeon_bo_mmap_offset(robj);
 411         drm_gem_object_unreference_unlocked(gobj);
 412         return 0;
 413 }
 414
 415 int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data,
 416                           struct drm_file *filp)
 417 {
 418         struct drm_radeon_gem_mmap *args = data;
 419
 420         return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr);
 421 }
 422
 423 int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
 424                           struct drm_file *filp)
 425 {
 426         struct radeon_device *rdev = dev->dev_private;
 427         struct drm_radeon_gem_busy *args = data;
 428         struct drm_gem_object *gobj;
 429         struct radeon_bo *robj;
 430         int r;
 431         uint32_t cur_placement = 0;
 432
 433         gobj = drm_gem_object_lookup(dev, filp, args->handle);
 434         if (gobj == NULL) {
 435                 return -ENOENT;
 436         }
 437         robj = gem_to_radeon_bo(gobj);
 438         r = radeon_bo_wait(robj, &cur_placement, true);
 439         args->domain = radeon_mem_type_to_domain(cur_placement);
 440         drm_gem_object_unreference_unlocked(gobj);
 441         r = radeon_gem_handle_lockup(rdev, r);
 442         return r;
 443 }
 444
 445 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
 446                               struct drm_file *filp)
 447 {
 448         struct radeon_device *rdev = dev->dev_private;
 449         struct drm_radeon_gem_wait_idle *args = data;
 450         struct drm_gem_object *gobj;
 451         struct radeon_bo *robj;
 452         int r;
 453         uint32_t cur_placement = 0;
 454
 455         gobj = drm_gem_object_lookup(dev, filp, args->handle);
 456         if (gobj == NULL) {
 457                 return -ENOENT;
 458         }
 459         robj = gem_to_radeon_bo(gobj);
 460         r = radeon_bo_wait(robj, &cur_placement, false);
 461         /* Flush HDP cache via MMIO if necessary */
 462         if (rdev->asic->mmio_hdp_flush &&
 463             radeon_mem_type_to_domain(cur_placement) == RADEON_GEM_DOMAIN_VRAM)
 464                 robj->rdev->asic->mmio_hdp_flush(rdev);
 465         drm_gem_object_unreference_unlocked(gobj);
 466         r = radeon_gem_handle_lockup(rdev, r);
 467         return r;
 468 }
 469
 470 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
 471                                 struct drm_file *filp)
 472 {
 473         struct drm_radeon_gem_set_tiling *args = data;
 474         struct drm_gem_object *gobj;
 475         struct radeon_bo *robj;
 476         int r = 0;
 477
 478         DRM_DEBUG("%d \n", args->handle);
 479         gobj = drm_gem_object_lookup(dev, filp, args->handle);
 480         if (gobj == NULL)
 481                 return -ENOENT;
 482         robj = gem_to_radeon_bo(gobj);
 483         r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch);
 484         drm_gem_object_unreference_unlocked(gobj);
 485         return r;
 486 }
 487
 488 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data,
 489                                 struct drm_file *filp)
 490 {
 491         struct drm_radeon_gem_get_tiling *args = data;
 492         struct drm_gem_object *gobj;
 493         struct radeon_bo *rbo;
 494         int r = 0;
 495
 496         DRM_DEBUG("\n");
 497         gobj = drm_gem_object_lookup(dev, filp, args->handle);
 498         if (gobj == NULL)
 499                 return -ENOENT;
 500         rbo = gem_to_radeon_bo(gobj);
 501         r = radeon_bo_reserve(rbo, false);
 502         if (unlikely(r != 0))
 503                 goto out;
 504         radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch);
 505         radeon_bo_unreserve(rbo);
 506 out:
 507         drm_gem_object_unreference_unlocked(gobj);
 508         return r;
 509 }
 510
 511 int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
 512                           struct drm_file *filp)
 513 {
 514         struct drm_radeon_gem_va *args = data;
 515         struct drm_gem_object *gobj;
 516         struct radeon_device *rdev = dev->dev_private;
 517         struct radeon_fpriv *fpriv = filp->driver_priv;
 518         struct radeon_bo *rbo;
 519         struct radeon_bo_va *bo_va;
 520         u32 invalid_flags;
 521         int r = 0;
 522
 523         if (!rdev->vm_manager.enabled) {
 524                 args->operation = RADEON_VA_RESULT_ERROR;
 525                 return -ENOTTY;
 526         }
 527
 528         /* !! DONT REMOVE !!
 529          * We don't support vm_id yet, to be sure we don't have have broken
 530          * userspace, reject anyone trying to use non 0 value thus moving
 531          * forward we can use those fields without breaking existant userspace
 532          */
 533         if (args->vm_id) {
 534                 args->operation = RADEON_VA_RESULT_ERROR;
 535                 return -EINVAL;
 536         }
 537
 538         if (args->offset < RADEON_VA_RESERVED_SIZE) {
 539                 dev_err(&dev->pdev->dev,
 540                         "offset 0x%lX is in reserved area 0x%X\n",
 541                         (unsigned long)args->offset,
 542                         RADEON_VA_RESERVED_SIZE);
 543                 args->operation = RADEON_VA_RESULT_ERROR;
 544                 return -EINVAL;
 545         }
 546
 547         /* don't remove, we need to enforce userspace to set the snooped flag
 548          * otherwise we will endup with broken userspace and we won't be able
 549          * to enable this feature without adding new interface
 550          */
 551         invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM;
 552         if ((args->flags & invalid_flags)) {
 553                 dev_err(&dev->pdev->dev, "invalid flags 0x%08X vs 0x%08X\n",
 554                         args->flags, invalid_flags);
 555                 args->operation = RADEON_VA_RESULT_ERROR;
 556                 return -EINVAL;
 557         }
 558
 559         switch (args->operation) {
 560         case RADEON_VA_MAP:
 561         case RADEON_VA_UNMAP:
 562                 break;
 563         default:
 564                 dev_err(&dev->pdev->dev, "unsupported operation %d\n",
 565                         args->operation);
 566                 args->operation = RADEON_VA_RESULT_ERROR;
 567                 return -EINVAL;
 568         }
 569
 570         gobj = drm_gem_object_lookup(dev, filp, args->handle);
 571         if (gobj == NULL) {
 572                 args->operation = RADEON_VA_RESULT_ERROR;
 573                 return -ENOENT;
 574         }
 575         rbo = gem_to_radeon_bo(gobj);
 576         r = radeon_bo_reserve(rbo, false);
 577         if (r) {
 578                 args->operation = RADEON_VA_RESULT_ERROR;
 579                 drm_gem_object_unreference_unlocked(gobj);
 580                 return r;
 581         }
 582         bo_va = radeon_vm_bo_find(&fpriv->vm, rbo);
 583         if (!bo_va) {
 584                 args->operation = RADEON_VA_RESULT_ERROR;
 585                 drm_gem_object_unreference_unlocked(gobj);
 586                 return -ENOENT;
 587         }
 588
 589         switch (args->operation) {
 590         case RADEON_VA_MAP:
 591                 if (bo_va->it.start) {
 592                         args->operation = RADEON_VA_RESULT_VA_EXIST;
 593                         args->offset = bo_va->it.start * RADEON_GPU_PAGE_SIZE;
 594                         goto out;
 595                 }
 596                 r = radeon_vm_bo_set_addr(rdev, bo_va, args->offset, args->flags);
 597                 break;
 598         case RADEON_VA_UNMAP:
 599                 r = radeon_vm_bo_set_addr(rdev, bo_va, 0, 0);
 600                 break;
 601         default:
 602                 break;
 603         }
 604         args->operation = RADEON_VA_RESULT_OK;
 605         if (r) {
 606                 args->operation = RADEON_VA_RESULT_ERROR;
 607         }
 608 out:
 609         radeon_bo_unreserve(rbo);
 610         drm_gem_object_unreference_unlocked(gobj);
 611         return r;
 612 }
 613
 614 int radeon_gem_op_ioctl(struct drm_device *dev, void *data,
 615                         struct drm_file *filp)
 616 {
 617         struct drm_radeon_gem_op *args = data;
 618         struct drm_gem_object *gobj;
 619         struct radeon_bo *robj;
 620         int r;
 621
 622         gobj = drm_gem_object_lookup(dev, filp, args->handle);
 623         if (gobj == NULL) {
 624                 return -ENOENT;
 625         }
 626         robj = gem_to_radeon_bo(gobj);
 627
 628         r = -EPERM;
 629         if (radeon_ttm_tt_has_userptr(robj->tbo.ttm))
 630                 goto out;
 631
 632         r = radeon_bo_reserve(robj, false);
 633         if (unlikely(r))
 634                 goto out;
 635
 636         switch (args->op) {
 637         case RADEON_GEM_OP_GET_INITIAL_DOMAIN:
 638                 args->value = robj->initial_domain;
 639                 break;
 640         case RADEON_GEM_OP_SET_INITIAL_DOMAIN:
 641                 robj->initial_domain = args->value & (RADEON_GEM_DOMAIN_VRAM |
 642                                                       RADEON_GEM_DOMAIN_GTT |
 643                                                       RADEON_GEM_DOMAIN_CPU);
 644                 break;
 645         default:
 646                 r = -EINVAL;
 647         }
 648
 649         radeon_bo_unreserve(robj);
 650 out:
 651         drm_gem_object_unreference_unlocked(gobj);
 652         return r;
 653 }
 654
 655 int radeon_mode_dumb_create(struct drm_file *file_priv,
 656                             struct drm_device *dev,
 657                             struct drm_mode_create_dumb *args)
 658 {
 659         struct radeon_device *rdev = dev->dev_private;
 660         struct drm_gem_object *gobj;
 661         uint32_t handle;
 662         int r;
 663
 664         args->pitch = radeon_align_pitch(rdev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8);
 665         args->size = args->pitch * args->height;
 666         args->size = ALIGN(args->size, PAGE_SIZE);
 667
 668         r = radeon_gem_object_create(rdev, args->size, 0,
 669                                      RADEON_GEM_DOMAIN_VRAM, 0,
 670                                      false, &gobj);
 671         if (r)
 672                 return -ENOMEM;
 673
 674         r = drm_gem_handle_create(file_priv, gobj, &handle);
 675         /* drop reference from allocate - handle holds it now */
 676         drm_gem_object_unreference_unlocked(gobj);
 677         if (r) {
 678                 return r;
 679         }
 680         args->handle = handle;
 681         return 0;
 682 }
 683
 684 #if defined(CONFIG_DEBUG_FS)
 685 static int radeon_debugfs_gem_info(struct seq_file *m, void *data)
 686 {
 687         struct drm_info_node *node = (struct drm_info_node *)m->private;
 688         struct drm_device *dev = node->minor->dev;
 689         struct radeon_device *rdev = dev->dev_private;
 690         struct radeon_bo *rbo;
 691         unsigned i = 0;
 692
 693         mutex_lock(&rdev->gem.mutex);
 694         list_for_each_entry(rbo, &rdev->gem.objects, list) {
 695                 unsigned domain;
 696                 const char *placement;
 697
 698                 domain = radeon_mem_type_to_domain(rbo->tbo.mem.mem_type);
 699                 switch (domain) {
 700                 case RADEON_GEM_DOMAIN_VRAM:
 701                         placement = "VRAM";
 702                         break;
 703                 case RADEON_GEM_DOMAIN_GTT:
 704                         placement = " GTT";
 705                         break;
 706                 case RADEON_GEM_DOMAIN_CPU:
 707                 default:
 708                         placement = " CPU";
 709                         break;
 710                 }
 711                 seq_printf(m, "bo[0x%08x] %8ldkB %8ldMB %s pid %8ld\n",
 712                            i, radeon_bo_size(rbo) >> 10, radeon_bo_size(rbo) >> 20,
 713                            placement, (unsigned long)rbo->pid);
 714                 i++;
 715         }
 716         mutex_unlock(&rdev->gem.mutex);
 717         return 0;
 718 }
 719
 720 static struct drm_info_list radeon_debugfs_gem_list[] = {
 721         {"radeon_gem_info", &radeon_debugfs_gem_info, 0, NULL},
 722 };
 723 #endif
 724
 725 int radeon_gem_debugfs_init(struct radeon_device *rdev)
 726 {
 727 #if defined(CONFIG_DEBUG_FS)
 728         return radeon_debugfs_add_files(rdev, radeon_debugfs_gem_list, 1);
 729 #endif
 730         return 0;
 731 }