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 int radeon_gem_object_init(struct drm_gem_object *obj) 33 { 34 BUG(); 35 36 return 0; 37 } 38 39 void radeon_gem_object_free(struct drm_gem_object *gobj) 40 { 41 struct radeon_bo *robj = gem_to_radeon_bo(gobj); 42 43 if (robj) { 44 if (robj->gem_base.import_attach) 45 drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg); 46 radeon_bo_unref(&robj); 47 } 48 } 49 50 int radeon_gem_object_create(struct radeon_device *rdev, int size, 51 int alignment, int initial_domain, 52 bool discardable, bool kernel, 53 struct drm_gem_object **obj) 54 { 55 struct radeon_bo *robj; 56 unsigned long max_size; 57 int r; 58 59 *obj = NULL; 60 /* At least align on page size */ 61 if (alignment < PAGE_SIZE) { 62 alignment = PAGE_SIZE; 63 } 64 65 /* maximun bo size is the minimun btw visible vram and gtt size */ 66 max_size = min(rdev->mc.visible_vram_size, rdev->mc.gtt_size); 67 if (size > max_size) { 68 printk(KERN_WARNING "%s:%d alloc size %dMb bigger than %ldMb limit\n", 69 __func__, __LINE__, size >> 20, max_size >> 20); 70 return -ENOMEM; 71 } 72 73 retry: 74 r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain, NULL, &robj); 75 if (r) { 76 if (r != -ERESTARTSYS) { 77 if (initial_domain == RADEON_GEM_DOMAIN_VRAM) { 78 initial_domain |= RADEON_GEM_DOMAIN_GTT; 79 goto retry; 80 } 81 DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n", 82 size, initial_domain, alignment, r); 83 } 84 return r; 85 } 86 *obj = &robj->gem_base; 87 88 mutex_lock(&rdev->gem.mutex); 89 list_add_tail(&robj->list, &rdev->gem.objects); 90 mutex_unlock(&rdev->gem.mutex); 91 92 return 0; 93 } 94 95 int radeon_gem_set_domain(struct drm_gem_object *gobj, 96 uint32_t rdomain, uint32_t wdomain) 97 { 98 struct radeon_bo *robj; 99 uint32_t domain; 100 int r; 101 102 /* FIXME: reeimplement */ 103 robj = gem_to_radeon_bo(gobj); 104 /* work out where to validate the buffer to */ 105 domain = wdomain; 106 if (!domain) { 107 domain = rdomain; 108 } 109 if (!domain) { 110 /* Do nothings */ 111 printk(KERN_WARNING "Set domain without domain !\n"); 112 return 0; 113 } 114 if (domain == RADEON_GEM_DOMAIN_CPU) { 115 /* Asking for cpu access wait for object idle */ 116 r = radeon_bo_wait(robj, NULL, false); 117 if (r) { 118 printk(KERN_ERR "Failed to wait for object !\n"); 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 unsigned i; 218 219 man = &rdev->mman.bdev.man[TTM_PL_VRAM]; 220 221 args->vram_size = rdev->mc.real_vram_size; 222 args->vram_visible = (u64)man->size << PAGE_SHIFT; 223 if (rdev->stollen_vga_memory) 224 args->vram_visible -= radeon_bo_size(rdev->stollen_vga_memory); 225 args->vram_visible -= radeon_fbdev_total_size(rdev); 226 args->gart_size = rdev->mc.gtt_size - 4096 - RADEON_IB_POOL_SIZE*64*1024; 227 for(i = 0; i < RADEON_NUM_RINGS; ++i) 228 args->gart_size -= rdev->ring[i].ring_size; 229 return 0; 230 } 231 232 int radeon_gem_pread_ioctl(struct drm_device *dev, void *data, 233 struct drm_file *filp) 234 { 235 /* TODO: implement */ 236 DRM_ERROR("unimplemented %s\n", __func__); 237 return -ENOSYS; 238 } 239 240 int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data, 241 struct drm_file *filp) 242 { 243 /* TODO: implement */ 244 DRM_ERROR("unimplemented %s\n", __func__); 245 return -ENOSYS; 246 } 247 248 int radeon_gem_create_ioctl(struct drm_device *dev, void *data, 249 struct drm_file *filp) 250 { 251 struct radeon_device *rdev = dev->dev_private; 252 struct drm_radeon_gem_create *args = data; 253 struct drm_gem_object *gobj; 254 uint32_t handle; 255 int r; 256 257 down_read(&rdev->exclusive_lock); 258 /* create a gem object to contain this object in */ 259 args->size = roundup(args->size, PAGE_SIZE); 260 r = radeon_gem_object_create(rdev, args->size, args->alignment, 261 args->initial_domain, false, 262 false, &gobj); 263 if (r) { 264 up_read(&rdev->exclusive_lock); 265 r = radeon_gem_handle_lockup(rdev, r); 266 return r; 267 } 268 r = drm_gem_handle_create(filp, gobj, &handle); 269 /* drop reference from allocate - handle holds it now */ 270 drm_gem_object_unreference_unlocked(gobj); 271 if (r) { 272 up_read(&rdev->exclusive_lock); 273 r = radeon_gem_handle_lockup(rdev, r); 274 return r; 275 } 276 args->handle = handle; 277 up_read(&rdev->exclusive_lock); 278 return 0; 279 } 280 281 int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data, 282 struct drm_file *filp) 283 { 284 /* transition the BO to a domain - 285 * just validate the BO into a certain domain */ 286 struct radeon_device *rdev = dev->dev_private; 287 struct drm_radeon_gem_set_domain *args = data; 288 struct drm_gem_object *gobj; 289 struct radeon_bo *robj; 290 int r; 291 292 /* for now if someone requests domain CPU - 293 * just make sure the buffer is finished with */ 294 down_read(&rdev->exclusive_lock); 295 296 /* just do a BO wait for now */ 297 gobj = drm_gem_object_lookup(dev, filp, args->handle); 298 if (gobj == NULL) { 299 up_read(&rdev->exclusive_lock); 300 return -ENOENT; 301 } 302 robj = gem_to_radeon_bo(gobj); 303 304 r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain); 305 306 drm_gem_object_unreference_unlocked(gobj); 307 up_read(&rdev->exclusive_lock); 308 r = radeon_gem_handle_lockup(robj->rdev, r); 309 return r; 310 } 311 312 int radeon_mode_dumb_mmap(struct drm_file *filp, 313 struct drm_device *dev, 314 uint32_t handle, uint64_t *offset_p) 315 { 316 struct drm_gem_object *gobj; 317 struct radeon_bo *robj; 318 319 gobj = drm_gem_object_lookup(dev, filp, handle); 320 if (gobj == NULL) { 321 return -ENOENT; 322 } 323 robj = gem_to_radeon_bo(gobj); 324 *offset_p = radeon_bo_mmap_offset(robj); 325 drm_gem_object_unreference_unlocked(gobj); 326 return 0; 327 } 328 329 int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data, 330 struct drm_file *filp) 331 { 332 struct drm_radeon_gem_mmap *args = data; 333 334 return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr); 335 } 336 337 int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, 338 struct drm_file *filp) 339 { 340 struct radeon_device *rdev = dev->dev_private; 341 struct drm_radeon_gem_busy *args = data; 342 struct drm_gem_object *gobj; 343 struct radeon_bo *robj; 344 int r; 345 uint32_t cur_placement = 0; 346 347 gobj = drm_gem_object_lookup(dev, filp, args->handle); 348 if (gobj == NULL) { 349 return -ENOENT; 350 } 351 robj = gem_to_radeon_bo(gobj); 352 r = radeon_bo_wait(robj, &cur_placement, true); 353 switch (cur_placement) { 354 case TTM_PL_VRAM: 355 args->domain = RADEON_GEM_DOMAIN_VRAM; 356 break; 357 case TTM_PL_TT: 358 args->domain = RADEON_GEM_DOMAIN_GTT; 359 break; 360 case TTM_PL_SYSTEM: 361 args->domain = RADEON_GEM_DOMAIN_CPU; 362 default: 363 break; 364 } 365 drm_gem_object_unreference_unlocked(gobj); 366 r = radeon_gem_handle_lockup(rdev, r); 367 return r; 368 } 369 370 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data, 371 struct drm_file *filp) 372 { 373 struct radeon_device *rdev = dev->dev_private; 374 struct drm_radeon_gem_wait_idle *args = data; 375 struct drm_gem_object *gobj; 376 struct radeon_bo *robj; 377 int r; 378 379 gobj = drm_gem_object_lookup(dev, filp, args->handle); 380 if (gobj == NULL) { 381 return -ENOENT; 382 } 383 robj = gem_to_radeon_bo(gobj); 384 r = radeon_bo_wait(robj, NULL, false); 385 /* callback hw specific functions if any */ 386 if (rdev->asic->ioctl_wait_idle) 387 robj->rdev->asic->ioctl_wait_idle(rdev, robj); 388 drm_gem_object_unreference_unlocked(gobj); 389 r = radeon_gem_handle_lockup(rdev, r); 390 return r; 391 } 392 393 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data, 394 struct drm_file *filp) 395 { 396 struct drm_radeon_gem_set_tiling *args = data; 397 struct drm_gem_object *gobj; 398 struct radeon_bo *robj; 399 int r = 0; 400 401 DRM_DEBUG("%d \n", args->handle); 402 gobj = drm_gem_object_lookup(dev, filp, args->handle); 403 if (gobj == NULL) 404 return -ENOENT; 405 robj = gem_to_radeon_bo(gobj); 406 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch); 407 drm_gem_object_unreference_unlocked(gobj); 408 return r; 409 } 410 411 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data, 412 struct drm_file *filp) 413 { 414 struct drm_radeon_gem_get_tiling *args = data; 415 struct drm_gem_object *gobj; 416 struct radeon_bo *rbo; 417 int r = 0; 418 419 DRM_DEBUG("\n"); 420 gobj = drm_gem_object_lookup(dev, filp, args->handle); 421 if (gobj == NULL) 422 return -ENOENT; 423 rbo = gem_to_radeon_bo(gobj); 424 r = radeon_bo_reserve(rbo, false); 425 if (unlikely(r != 0)) 426 goto out; 427 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch); 428 radeon_bo_unreserve(rbo); 429 out: 430 drm_gem_object_unreference_unlocked(gobj); 431 return r; 432 } 433 434 int radeon_gem_va_ioctl(struct drm_device *dev, void *data, 435 struct drm_file *filp) 436 { 437 struct drm_radeon_gem_va *args = data; 438 struct drm_gem_object *gobj; 439 struct radeon_device *rdev = dev->dev_private; 440 struct radeon_fpriv *fpriv = filp->driver_priv; 441 struct radeon_bo *rbo; 442 struct radeon_bo_va *bo_va; 443 u32 invalid_flags; 444 int r = 0; 445 446 if (!rdev->vm_manager.enabled) { 447 args->operation = RADEON_VA_RESULT_ERROR; 448 return -ENOTTY; 449 } 450 451 /* !! DONT REMOVE !! 452 * We don't support vm_id yet, to be sure we don't have have broken 453 * userspace, reject anyone trying to use non 0 value thus moving 454 * forward we can use those fields without breaking existant userspace 455 */ 456 if (args->vm_id) { 457 args->operation = RADEON_VA_RESULT_ERROR; 458 return -EINVAL; 459 } 460 461 if (args->offset < RADEON_VA_RESERVED_SIZE) { 462 dev_err(&dev->pdev->dev, 463 "offset 0x%lX is in reserved area 0x%X\n", 464 (unsigned long)args->offset, 465 RADEON_VA_RESERVED_SIZE); 466 args->operation = RADEON_VA_RESULT_ERROR; 467 return -EINVAL; 468 } 469 470 /* don't remove, we need to enforce userspace to set the snooped flag 471 * otherwise we will endup with broken userspace and we won't be able 472 * to enable this feature without adding new interface 473 */ 474 invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM; 475 if ((args->flags & invalid_flags)) { 476 dev_err(&dev->pdev->dev, "invalid flags 0x%08X vs 0x%08X\n", 477 args->flags, invalid_flags); 478 args->operation = RADEON_VA_RESULT_ERROR; 479 return -EINVAL; 480 } 481 if (!(args->flags & RADEON_VM_PAGE_SNOOPED)) { 482 dev_err(&dev->pdev->dev, "only supported snooped mapping for now\n"); 483 args->operation = RADEON_VA_RESULT_ERROR; 484 return -EINVAL; 485 } 486 487 switch (args->operation) { 488 case RADEON_VA_MAP: 489 case RADEON_VA_UNMAP: 490 break; 491 default: 492 dev_err(&dev->pdev->dev, "unsupported operation %d\n", 493 args->operation); 494 args->operation = RADEON_VA_RESULT_ERROR; 495 return -EINVAL; 496 } 497 498 gobj = drm_gem_object_lookup(dev, filp, args->handle); 499 if (gobj == NULL) { 500 args->operation = RADEON_VA_RESULT_ERROR; 501 return -ENOENT; 502 } 503 rbo = gem_to_radeon_bo(gobj); 504 r = radeon_bo_reserve(rbo, false); 505 if (r) { 506 args->operation = RADEON_VA_RESULT_ERROR; 507 drm_gem_object_unreference_unlocked(gobj); 508 return r; 509 } 510 bo_va = radeon_vm_bo_find(&fpriv->vm, rbo); 511 if (!bo_va) { 512 args->operation = RADEON_VA_RESULT_ERROR; 513 drm_gem_object_unreference_unlocked(gobj); 514 return -ENOENT; 515 } 516 517 switch (args->operation) { 518 case RADEON_VA_MAP: 519 if (bo_va->soffset) { 520 args->operation = RADEON_VA_RESULT_VA_EXIST; 521 args->offset = bo_va->soffset; 522 goto out; 523 } 524 r = radeon_vm_bo_set_addr(rdev, bo_va, args->offset, args->flags); 525 break; 526 case RADEON_VA_UNMAP: 527 r = radeon_vm_bo_set_addr(rdev, bo_va, 0, 0); 528 break; 529 default: 530 break; 531 } 532 args->operation = RADEON_VA_RESULT_OK; 533 if (r) { 534 args->operation = RADEON_VA_RESULT_ERROR; 535 } 536 out: 537 radeon_bo_unreserve(rbo); 538 drm_gem_object_unreference_unlocked(gobj); 539 return r; 540 } 541 542 int radeon_mode_dumb_create(struct drm_file *file_priv, 543 struct drm_device *dev, 544 struct drm_mode_create_dumb *args) 545 { 546 struct radeon_device *rdev = dev->dev_private; 547 struct drm_gem_object *gobj; 548 uint32_t handle; 549 int r; 550 551 args->pitch = radeon_align_pitch(rdev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8); 552 args->size = args->pitch * args->height; 553 args->size = ALIGN(args->size, PAGE_SIZE); 554 555 r = radeon_gem_object_create(rdev, args->size, 0, 556 RADEON_GEM_DOMAIN_VRAM, 557 false, ttm_bo_type_device, 558 &gobj); 559 if (r) 560 return -ENOMEM; 561 562 r = drm_gem_handle_create(file_priv, gobj, &handle); 563 /* drop reference from allocate - handle holds it now */ 564 drm_gem_object_unreference_unlocked(gobj); 565 if (r) { 566 return r; 567 } 568 args->handle = handle; 569 return 0; 570 } 571 572 int radeon_mode_dumb_destroy(struct drm_file *file_priv, 573 struct drm_device *dev, 574 uint32_t handle) 575 { 576 return drm_gem_handle_delete(file_priv, handle); 577 } 578