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         long 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 = reservation_object_wait_timeout_rcu(robj->tbo.resv, true, true, 30 * HZ);
 114                 if (!r)
 115                         r = -EBUSY;
 116
 117                 if (r < 0 && r != -EINTR) {
 118                         printk(KERN_ERR "Failed to wait for object: %li\n", r);
 119                         return r;
 120                 }
 121         }
 122         return 0;
 123 }
 124
 125 int radeon_gem_init(struct radeon_device *rdev)
 126 {
 127         INIT_LIST_HEAD(&rdev->gem.objects);
 128         return 0;
 129 }
 130
 131 void radeon_gem_fini(struct radeon_device *rdev)
 132 {
 133         radeon_bo_force_delete(rdev);
 134 }
 135
 136 /*
 137  * Call from drm_gem_handle_create which appear in both new and open ioctl
 138  * case.
 139  */
 140 int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
 141 {
 142         struct radeon_bo *rbo = gem_to_radeon_bo(obj);
 143         struct radeon_device *rdev = rbo->rdev;
 144         struct radeon_fpriv *fpriv = file_priv->driver_priv;
 145         struct radeon_vm *vm = &fpriv->vm;
 146         struct radeon_bo_va *bo_va;
 147         int r;
 148
 149         if (rdev->family < CHIP_CAYMAN) {
 150                 return 0;
 151         }
 152
 153         r = radeon_bo_reserve(rbo, false);
 154         if (r) {
 155                 return r;
 156         }
 157
 158         bo_va = radeon_vm_bo_find(vm, rbo);
 159         if (!bo_va) {
 160                 bo_va = radeon_vm_bo_add(rdev, vm, rbo);
 161         } else {
 162                 ++bo_va->ref_count;
 163         }
 164         radeon_bo_unreserve(rbo);
 165
 166         return 0;
 167 }
 168
 169 void radeon_gem_object_close(struct drm_gem_object *obj,
 170                              struct drm_file *file_priv)
 171 {
 172         struct radeon_bo *rbo = gem_to_radeon_bo(obj);
 173         struct radeon_device *rdev = rbo->rdev;
 174         struct radeon_fpriv *fpriv = file_priv->driver_priv;
 175         struct radeon_vm *vm = &fpriv->vm;
 176         struct radeon_bo_va *bo_va;
 177         int r;
 178
 179         if (rdev->family < CHIP_CAYMAN) {
 180                 return;
 181         }
 182
 183         r = radeon_bo_reserve(rbo, true);
 184         if (r) {
 185                 dev_err(rdev->dev, "leaking bo va because "
 186                         "we fail to reserve bo (%d)\n", r);
 187                 return;
 188         }
 189         bo_va = radeon_vm_bo_find(vm, rbo);
 190         if (bo_va) {
 191                 if (--bo_va->ref_count == 0) {
 192                         radeon_vm_bo_rmv(rdev, bo_va);
 193                 }
 194         }
 195         radeon_bo_unreserve(rbo);
 196 }
 197
 198 static int radeon_gem_handle_lockup(struct radeon_device *rdev, int r)
 199 {
 200         if (r == -EDEADLK) {
 201                 r = radeon_gpu_reset(rdev);
 202                 if (!r)
 203                         r = -EAGAIN;
 204         }
 205         return r;
 206 }
 207
 208 /*
 209  * GEM ioctls.
 210  */
 211 int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
 212                           struct drm_file *filp)
 213 {
 214         struct radeon_device *rdev = dev->dev_private;
 215         struct drm_radeon_gem_info *args = data;
 216         struct ttm_mem_type_manager *man;
 217
 218         man = &rdev->mman.bdev.man[TTM_PL_VRAM];
 219
 220         args->vram_size = rdev->mc.real_vram_size;
 221         args->vram_visible = (u64)man->size << PAGE_SHIFT;
 222         args->vram_visible -= rdev->vram_pin_size;
 223         args->gart_size = rdev->mc.gtt_size;
 224         args->gart_size -= rdev->gart_pin_size;
 225
 226         return 0;
 227 }
 228
 229 int radeon_gem_pread_ioctl(struct drm_device *dev, void *data,
 230                            struct drm_file *filp)
 231 {
 232         /* TODO: implement */
 233         DRM_ERROR("unimplemented %s\n", __func__);
 234         return -ENOSYS;
 235 }
 236
 237 int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data,
 238                             struct drm_file *filp)
 239 {
 240         /* TODO: implement */
 241         DRM_ERROR("unimplemented %s\n", __func__);
 242         return -ENOSYS;
 243 }
 244
 245 int radeon_gem_create_ioctl(struct drm_device *dev, void *data,
 246                             struct drm_file *filp)
 247 {
 248         struct radeon_device *rdev = dev->dev_private;
 249         struct drm_radeon_gem_create *args = data;
 250         struct drm_gem_object *gobj;
 251         uint32_t handle;
 252         int r;
 253
 254         down_read(&rdev->exclusive_lock);
 255         /* create a gem object to contain this object in */
 256         args->size = roundup(args->size, PAGE_SIZE);
 257         r = radeon_gem_object_create(rdev, args->size, args->alignment,
 258                                      args->initial_domain, args->flags,
 259                                      false, &gobj);
 260         if (r) {
 261                 up_read(&rdev->exclusive_lock);
 262                 r = radeon_gem_handle_lockup(rdev, r);
 263                 return r;
 264         }
 265         r = drm_gem_handle_create(filp, gobj, &handle);
 266         /* drop reference from allocate - handle holds it now */
 267         drm_gem_object_unreference_unlocked(gobj);
 268         if (r) {
 269                 up_read(&rdev->exclusive_lock);
 270                 r = radeon_gem_handle_lockup(rdev, r);
 271                 return r;
 272         }
 273         args->handle = handle;
 274         up_read(&rdev->exclusive_lock);
 275         return 0;
 276 }
 277
 278 int radeon_gem_userptr_ioctl(struct drm_device *dev, void *data,
 279                              struct drm_file *filp)
 280 {
 281         struct radeon_device *rdev = dev->dev_private;
 282         struct drm_radeon_gem_userptr *args = data;
 283         struct drm_gem_object *gobj;
 284         struct radeon_bo *bo;
 285         uint32_t handle;
 286         int r;
 287
 288         if (offset_in_page(args->addr | args->size))
 289                 return -EINVAL;
 290
 291         /* reject unknown flag values */
 292         if (args->flags & ~(RADEON_GEM_USERPTR_READONLY |
 293             RADEON_GEM_USERPTR_ANONONLY | RADEON_GEM_USERPTR_VALIDATE |
 294             RADEON_GEM_USERPTR_REGISTER))
 295                 return -EINVAL;
 296
 297         if (args->flags & RADEON_GEM_USERPTR_READONLY) {
 298                 /* readonly pages not tested on older hardware */
 299                 if (rdev->family < CHIP_R600)
 300                         return -EINVAL;
 301
 302         } else if (!(args->flags & RADEON_GEM_USERPTR_ANONONLY) ||
 303                    !(args->flags & RADEON_GEM_USERPTR_REGISTER)) {
 304
 305                 /* if we want to write to it we must require anonymous
 306                    memory and install a MMU notifier */
 307                 return -EACCES;
 308         }
 309
 310         down_read(&rdev->exclusive_lock);
 311
 312         /* create a gem object to contain this object in */
 313         r = radeon_gem_object_create(rdev, args->size, 0,
 314                                      RADEON_GEM_DOMAIN_CPU, 0,
 315                                      false, &gobj);
 316         if (r)
 317                 goto handle_lockup;
 318
 319         bo = gem_to_radeon_bo(gobj);
 320         r = radeon_ttm_tt_set_userptr(bo->tbo.ttm, args->addr, args->flags);
 321         if (r)
 322                 goto release_object;
 323
 324         if (args->flags & RADEON_GEM_USERPTR_REGISTER) {
 325                 r = radeon_mn_register(bo, args->addr);
 326                 if (r)
 327                         goto release_object;
 328         }
 329
 330         if (args->flags & RADEON_GEM_USERPTR_VALIDATE) {
 331                 down_read(&current->mm->mmap_sem);
 332                 r = radeon_bo_reserve(bo, true);
 333                 if (r) {
 334                         up_read(&current->mm->mmap_sem);
 335                         goto release_object;
 336                 }
 337
 338                 radeon_ttm_placement_from_domain(bo, RADEON_GEM_DOMAIN_GTT);
 339                 r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false);
 340                 radeon_bo_unreserve(bo);
 341                 up_read(&current->mm->mmap_sem);
 342                 if (r)
 343                         goto release_object;
 344         }
 345
 346         r = drm_gem_handle_create(filp, gobj, &handle);
 347         /* drop reference from allocate - handle holds it now */
 348         drm_gem_object_unreference_unlocked(gobj);
 349         if (r)
 350                 goto handle_lockup;
 351
 352         args->handle = handle;
 353         up_read(&rdev->exclusive_lock);
 354         return 0;
 355
 356 release_object:
 357         drm_gem_object_unreference_unlocked(gobj);
 358
 359 handle_lockup:
 360         up_read(&rdev->exclusive_lock);
 361         r = radeon_gem_handle_lockup(rdev, r);
 362
 363         return r;
 364 }
 365
 366 int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data,
 367                                 struct drm_file *filp)
 368 {
 369         /* transition the BO to a domain -
 370          * just validate the BO into a certain domain */
 371         struct radeon_device *rdev = dev->dev_private;
 372         struct drm_radeon_gem_set_domain *args = data;
 373         struct drm_gem_object *gobj;
 374         struct radeon_bo *robj;
 375         int r;
 376
 377         /* for now if someone requests domain CPU -
 378          * just make sure the buffer is finished with */
 379         down_read(&rdev->exclusive_lock);
 380
 381         /* just do a BO wait for now */
 382         gobj = drm_gem_object_lookup(dev, filp, args->handle);
 383         if (gobj == NULL) {
 384                 up_read(&rdev->exclusive_lock);
 385                 return -ENOENT;
 386         }
 387         robj = gem_to_radeon_bo(gobj);
 388
 389         r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain);
 390
 391         drm_gem_object_unreference_unlocked(gobj);
 392         up_read(&rdev->exclusive_lock);
 393         r = radeon_gem_handle_lockup(robj->rdev, r);
 394         return r;
 395 }
 396
 397 int radeon_mode_dumb_mmap(struct drm_file *filp,
 398                           struct drm_device *dev,
 399                           uint32_t handle, uint64_t *offset_p)
 400 {
 401         struct drm_gem_object *gobj;
 402         struct radeon_bo *robj;
 403
 404         gobj = drm_gem_object_lookup(dev, filp, handle);
 405         if (gobj == NULL) {
 406                 return -ENOENT;
 407         }
 408         robj = gem_to_radeon_bo(gobj);
 409         if (radeon_ttm_tt_has_userptr(robj->tbo.ttm)) {
 410                 drm_gem_object_unreference_unlocked(gobj);
 411                 return -EPERM;
 412         }
 413         *offset_p = radeon_bo_mmap_offset(robj);
 414         drm_gem_object_unreference_unlocked(gobj);
 415         return 0;
 416 }
 417
 418 int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data,
 419                           struct drm_file *filp)
 420 {
 421         struct drm_radeon_gem_mmap *args = data;
 422
 423         return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr);
 424 }
 425
 426 int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
 427                           struct drm_file *filp)
 428 {
 429         struct radeon_device *rdev = dev->dev_private;
 430         struct drm_radeon_gem_busy *args = data;
 431         struct drm_gem_object *gobj;
 432         struct radeon_bo *robj;
 433         int r;
 434         uint32_t cur_placement = 0;
 435
 436         gobj = drm_gem_object_lookup(dev, filp, args->handle);
 437         if (gobj == NULL) {
 438                 return -ENOENT;
 439         }
 440         robj = gem_to_radeon_bo(gobj);
 441         r = radeon_bo_wait(robj, &cur_placement, true);
 442         args->domain = radeon_mem_type_to_domain(cur_placement);
 443         drm_gem_object_unreference_unlocked(gobj);
 444         r = radeon_gem_handle_lockup(rdev, r);
 445         return r;
 446 }
 447
 448 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
 449                               struct drm_file *filp)
 450 {
 451         struct radeon_device *rdev = dev->dev_private;
 452         struct drm_radeon_gem_wait_idle *args = data;
 453         struct drm_gem_object *gobj;
 454         struct radeon_bo *robj;
 455         int r = 0;
 456         uint32_t cur_placement = 0;
 457         long ret;
 458
 459         gobj = drm_gem_object_lookup(dev, filp, args->handle);
 460         if (gobj == NULL) {
 461                 return -ENOENT;
 462         }
 463         robj = gem_to_radeon_bo(gobj);
 464
 465         ret = reservation_object_wait_timeout_rcu(robj->tbo.resv, true, true, 30 * HZ);
 466         if (ret == 0)
 467                 r = -EBUSY;
 468         else if (ret < 0)
 469                 r = ret;
 470
 471         /* Flush HDP cache via MMIO if necessary */
 472         if (rdev->asic->mmio_hdp_flush &&
 473             radeon_mem_type_to_domain(cur_placement) == RADEON_GEM_DOMAIN_VRAM)
 474                 robj->rdev->asic->mmio_hdp_flush(rdev);
 475         drm_gem_object_unreference_unlocked(gobj);
 476         r = radeon_gem_handle_lockup(rdev, r);
 477         return r;
 478 }
 479
 480 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
 481                                 struct drm_file *filp)
 482 {
 483         struct drm_radeon_gem_set_tiling *args = data;
 484         struct drm_gem_object *gobj;
 485         struct radeon_bo *robj;
 486         int r = 0;
 487
 488         DRM_DEBUG("%d \n", args->handle);
 489         gobj = drm_gem_object_lookup(dev, filp, args->handle);
 490         if (gobj == NULL)
 491                 return -ENOENT;
 492         robj = gem_to_radeon_bo(gobj);
 493         r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch);
 494         drm_gem_object_unreference_unlocked(gobj);
 495         return r;
 496 }
 497
 498 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data,
 499                                 struct drm_file *filp)
 500 {
 501         struct drm_radeon_gem_get_tiling *args = data;
 502         struct drm_gem_object *gobj;
 503         struct radeon_bo *rbo;
 504         int r = 0;
 505
 506         DRM_DEBUG("\n");
 507         gobj = drm_gem_object_lookup(dev, filp, args->handle);
 508         if (gobj == NULL)
 509                 return -ENOENT;
 510         rbo = gem_to_radeon_bo(gobj);
 511         r = radeon_bo_reserve(rbo, false);
 512         if (unlikely(r != 0))
 513                 goto out;
 514         radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch);
 515         radeon_bo_unreserve(rbo);
 516 out:
 517         drm_gem_object_unreference_unlocked(gobj);
 518         return r;
 519 }
 520
 521 int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
 522                           struct drm_file *filp)
 523 {
 524         struct drm_radeon_gem_va *args = data;
 525         struct drm_gem_object *gobj;
 526         struct radeon_device *rdev = dev->dev_private;
 527         struct radeon_fpriv *fpriv = filp->driver_priv;
 528         struct radeon_bo *rbo;
 529         struct radeon_bo_va *bo_va;
 530         u32 invalid_flags;
 531         int r = 0;
 532
 533         if (!rdev->vm_manager.enabled) {
 534                 args->operation = RADEON_VA_RESULT_ERROR;
 535                 return -ENOTTY;
 536         }
 537
 538         /* !! DONT REMOVE !!
 539          * We don't support vm_id yet, to be sure we don't have have broken
 540          * userspace, reject anyone trying to use non 0 value thus moving
 541          * forward we can use those fields without breaking existant userspace
 542          */
 543         if (args->vm_id) {
 544                 args->operation = RADEON_VA_RESULT_ERROR;
 545                 return -EINVAL;
 546         }
 547
 548         if (args->offset < RADEON_VA_RESERVED_SIZE) {
 549                 dev_err(&dev->pdev->dev,
 550                         "offset 0x%lX is in reserved area 0x%X\n",
 551                         (unsigned long)args->offset,
 552                         RADEON_VA_RESERVED_SIZE);
 553                 args->operation = RADEON_VA_RESULT_ERROR;
 554                 return -EINVAL;
 555         }
 556
 557         /* don't remove, we need to enforce userspace to set the snooped flag
 558          * otherwise we will endup with broken userspace and we won't be able
 559          * to enable this feature without adding new interface
 560          */
 561         invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM;
 562         if ((args->flags & invalid_flags)) {
 563                 dev_err(&dev->pdev->dev, "invalid flags 0x%08X vs 0x%08X\n",
 564                         args->flags, invalid_flags);
 565                 args->operation = RADEON_VA_RESULT_ERROR;
 566                 return -EINVAL;
 567         }
 568
 569         switch (args->operation) {
 570         case RADEON_VA_MAP:
 571         case RADEON_VA_UNMAP:
 572                 break;
 573         default:
 574                 dev_err(&dev->pdev->dev, "unsupported operation %d\n",
 575                         args->operation);
 576                 args->operation = RADEON_VA_RESULT_ERROR;
 577                 return -EINVAL;
 578         }
 579
 580         gobj = drm_gem_object_lookup(dev, filp, args->handle);
 581         if (gobj == NULL) {
 582                 args->operation = RADEON_VA_RESULT_ERROR;
 583                 return -ENOENT;
 584         }
 585         rbo = gem_to_radeon_bo(gobj);
 586         r = radeon_bo_reserve(rbo, false);
 587         if (r) {
 588                 args->operation = RADEON_VA_RESULT_ERROR;
 589                 drm_gem_object_unreference_unlocked(gobj);
 590                 return r;
 591         }
 592         bo_va = radeon_vm_bo_find(&fpriv->vm, rbo);
 593         if (!bo_va) {
 594                 args->operation = RADEON_VA_RESULT_ERROR;
 595                 drm_gem_object_unreference_unlocked(gobj);
 596                 return -ENOENT;
 597         }
 598
 599         switch (args->operation) {
 600         case RADEON_VA_MAP:
 601                 if (bo_va->it.start) {
 602                         args->operation = RADEON_VA_RESULT_VA_EXIST;
 603                         args->offset = bo_va->it.start * RADEON_GPU_PAGE_SIZE;
 604                         goto out;
 605                 }
 606                 r = radeon_vm_bo_set_addr(rdev, bo_va, args->offset, args->flags);
 607                 break;
 608         case RADEON_VA_UNMAP:
 609                 r = radeon_vm_bo_set_addr(rdev, bo_va, 0, 0);
 610                 break;
 611         default:
 612                 break;
 613         }
 614         args->operation = RADEON_VA_RESULT_OK;
 615         if (r) {
 616                 args->operation = RADEON_VA_RESULT_ERROR;
 617         }
 618 out:
 619         radeon_bo_unreserve(rbo);
 620         drm_gem_object_unreference_unlocked(gobj);
 621         return r;
 622 }
 623
 624 int radeon_gem_op_ioctl(struct drm_device *dev, void *data,
 625                         struct drm_file *filp)
 626 {
 627         struct drm_radeon_gem_op *args = data;
 628         struct drm_gem_object *gobj;
 629         struct radeon_bo *robj;
 630         int r;
 631
 632         gobj = drm_gem_object_lookup(dev, filp, args->handle);
 633         if (gobj == NULL) {
 634                 return -ENOENT;
 635         }
 636         robj = gem_to_radeon_bo(gobj);
 637
 638         r = -EPERM;
 639         if (radeon_ttm_tt_has_userptr(robj->tbo.ttm))
 640                 goto out;
 641
 642         r = radeon_bo_reserve(robj, false);
 643         if (unlikely(r))
 644                 goto out;
 645
 646         switch (args->op) {
 647         case RADEON_GEM_OP_GET_INITIAL_DOMAIN:
 648                 args->value = robj->initial_domain;
 649                 break;
 650         case RADEON_GEM_OP_SET_INITIAL_DOMAIN:
 651                 robj->initial_domain = args->value & (RADEON_GEM_DOMAIN_VRAM |
 652                                                       RADEON_GEM_DOMAIN_GTT |
 653                                                       RADEON_GEM_DOMAIN_CPU);
 654                 break;
 655         default:
 656                 r = -EINVAL;
 657         }
 658
 659         radeon_bo_unreserve(robj);
 660 out:
 661         drm_gem_object_unreference_unlocked(gobj);
 662         return r;
 663 }
 664
 665 int radeon_mode_dumb_create(struct drm_file *file_priv,
 666                             struct drm_device *dev,
 667                             struct drm_mode_create_dumb *args)
 668 {
 669         struct radeon_device *rdev = dev->dev_private;
 670         struct drm_gem_object *gobj;
 671         uint32_t handle;
 672         int r;
 673
 674         args->pitch = radeon_align_pitch(rdev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8);
 675         args->size = args->pitch * args->height;
 676         args->size = ALIGN(args->size, PAGE_SIZE);
 677
 678         r = radeon_gem_object_create(rdev, args->size, 0,
 679                                      RADEON_GEM_DOMAIN_VRAM, 0,
 680                                      false, &gobj);
 681         if (r)
 682                 return -ENOMEM;
 683
 684         r = drm_gem_handle_create(file_priv, gobj, &handle);
 685         /* drop reference from allocate - handle holds it now */
 686         drm_gem_object_unreference_unlocked(gobj);
 687         if (r) {
 688                 return r;
 689         }
 690         args->handle = handle;
 691         return 0;
 692 }
 693
 694 #if defined(CONFIG_DEBUG_FS)
 695 static int radeon_debugfs_gem_info(struct seq_file *m, void *data)
 696 {
 697         struct drm_info_node *node = (struct drm_info_node *)m->private;
 698         struct drm_device *dev = node->minor->dev;
 699         struct radeon_device *rdev = dev->dev_private;
 700         struct radeon_bo *rbo;
 701         unsigned i = 0;
 702
 703         mutex_lock(&rdev->gem.mutex);
 704         list_for_each_entry(rbo, &rdev->gem.objects, list) {
 705                 unsigned domain;
 706                 const char *placement;
 707
 708                 domain = radeon_mem_type_to_domain(rbo->tbo.mem.mem_type);
 709                 switch (domain) {
 710                 case RADEON_GEM_DOMAIN_VRAM:
 711                         placement = "VRAM";
 712                         break;
 713                 case RADEON_GEM_DOMAIN_GTT:
 714                         placement = " GTT";
 715                         break;
 716                 case RADEON_GEM_DOMAIN_CPU:
 717                 default:
 718                         placement = " CPU";
 719                         break;
 720                 }
 721                 seq_printf(m, "bo[0x%08x] %8ldkB %8ldMB %s pid %8ld\n",
 722                            i, radeon_bo_size(rbo) >> 10, radeon_bo_size(rbo) >> 20,
 723                            placement, (unsigned long)rbo->pid);
 724                 i++;
 725         }
 726         mutex_unlock(&rdev->gem.mutex);
 727         return 0;
 728 }
 729
 730 static struct drm_info_list radeon_debugfs_gem_list[] = {
 731         {"radeon_gem_info", &radeon_debugfs_gem_info, 0, NULL},
 732 };
 733 #endif
 734
 735 int radeon_gem_debugfs_init(struct radeon_device *rdev)
 736 {
 737 #if defined(CONFIG_DEBUG_FS)
 738         return radeon_debugfs_add_files(rdev, radeon_debugfs_gem_list, 1);
 739 #endif
 740         return 0;
 741 }