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 * $FreeBSD: head/sys/dev/drm2/radeon/radeon_gem.c 254885 2013-08-25 19:37:15Z dumbbell $ 29 */ 30 31 #include <drm/drmP.h> 32 #include <uapi_drm/radeon_drm.h> 33 #include "radeon.h" 34 #include "radeon_gem.h" 35 36 int radeon_gem_object_init(struct drm_gem_object *obj) 37 { 38 panic("radeon_gem_object_init() must not be called"); 39 40 return 0; 41 } 42 43 void radeon_gem_object_free(struct drm_gem_object *gobj) 44 { 45 struct radeon_bo *robj = gem_to_radeon_bo(gobj); 46 47 if (robj) { 48 #ifdef DUMBBELL_WIP 49 if (robj->gem_base.import_attach) 50 drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg); 51 #endif /* DUMBBELL_WIP */ 52 radeon_bo_unref(&robj); 53 } 54 } 55 56 int radeon_gem_object_create(struct radeon_device *rdev, int size, 57 int alignment, int initial_domain, 58 bool discardable, bool kernel, 59 struct drm_gem_object **obj) 60 { 61 struct radeon_bo *robj; 62 unsigned long max_size; 63 int r; 64 65 *obj = NULL; 66 /* At least align on page size */ 67 if (alignment < PAGE_SIZE) { 68 alignment = PAGE_SIZE; 69 } 70 71 /* maximun bo size is the minimun btw visible vram and gtt size */ 72 max_size = min(rdev->mc.visible_vram_size, rdev->mc.gtt_size); 73 if (size > max_size) { 74 DRM_ERROR("%s:%d alloc size %dMb bigger than %ldMb limit\n", 75 __func__, __LINE__, size >> 20, max_size >> 20); 76 return -ENOMEM; 77 } 78 79 retry: 80 r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain, NULL, &robj); 81 if (r) { 82 if (r != -ERESTART) { 83 if (initial_domain == RADEON_GEM_DOMAIN_VRAM) { 84 initial_domain |= RADEON_GEM_DOMAIN_GTT; 85 goto retry; 86 } 87 DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n", 88 size, initial_domain, alignment, r); 89 } 90 return r; 91 } 92 *obj = &robj->gem_base; 93 94 spin_lock(&rdev->gem.mutex); 95 list_add_tail(&robj->list, &rdev->gem.objects); 96 spin_unlock(&rdev->gem.mutex); 97 98 return 0; 99 } 100 101 static int radeon_gem_set_domain(struct drm_gem_object *gobj, 102 uint32_t rdomain, uint32_t wdomain) 103 { 104 struct radeon_bo *robj; 105 uint32_t domain; 106 int r; 107 108 /* FIXME: reeimplement */ 109 robj = gem_to_radeon_bo(gobj); 110 /* work out where to validate the buffer to */ 111 domain = wdomain; 112 if (!domain) { 113 domain = rdomain; 114 } 115 if (!domain) { 116 /* Do nothings */ 117 DRM_ERROR("Set domain without domain !\n"); 118 return 0; 119 } 120 if (domain == RADEON_GEM_DOMAIN_CPU) { 121 /* Asking for cpu access wait for object idle */ 122 r = radeon_bo_wait(robj, NULL, false); 123 if (r) { 124 DRM_ERROR("Failed to wait for object !\n"); 125 return r; 126 } 127 } 128 return 0; 129 } 130 131 int radeon_gem_init(struct radeon_device *rdev) 132 { 133 INIT_LIST_HEAD(&rdev->gem.objects); 134 return 0; 135 } 136 137 void radeon_gem_fini(struct radeon_device *rdev) 138 { 139 radeon_bo_force_delete(rdev); 140 } 141 142 /* 143 * Call from drm_gem_handle_create which appear in both new and open ioctl 144 * case. 145 */ 146 int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv) 147 { 148 struct radeon_bo *rbo = gem_to_radeon_bo(obj); 149 struct radeon_device *rdev = rbo->rdev; 150 struct radeon_fpriv *fpriv = file_priv->driver_priv; 151 struct radeon_vm *vm = &fpriv->vm; 152 struct radeon_bo_va *bo_va; 153 int r; 154 155 if (rdev->family < CHIP_CAYMAN) { 156 return 0; 157 } 158 159 r = radeon_bo_reserve(rbo, false); 160 if (r) { 161 return r; 162 } 163 164 bo_va = radeon_vm_bo_find(vm, rbo); 165 if (!bo_va) { 166 bo_va = radeon_vm_bo_add(rdev, vm, rbo); 167 } else { 168 ++bo_va->ref_count; 169 } 170 radeon_bo_unreserve(rbo); 171 172 return 0; 173 } 174 175 void radeon_gem_object_close(struct drm_gem_object *obj, 176 struct drm_file *file_priv) 177 { 178 struct radeon_bo *rbo = gem_to_radeon_bo(obj); 179 struct radeon_device *rdev = rbo->rdev; 180 struct radeon_fpriv *fpriv = file_priv->driver_priv; 181 struct radeon_vm *vm = &fpriv->vm; 182 struct radeon_bo_va *bo_va; 183 int r; 184 185 if (rdev->family < CHIP_CAYMAN) { 186 return; 187 } 188 189 r = radeon_bo_reserve(rbo, true); 190 if (r) { 191 dev_err(rdev->dev, "leaking bo va because " 192 "we fail to reserve bo (%d)\n", r); 193 return; 194 } 195 bo_va = radeon_vm_bo_find(vm, rbo); 196 if (bo_va) { 197 if (--bo_va->ref_count == 0) { 198 radeon_vm_bo_rmv(rdev, bo_va); 199 } 200 } 201 radeon_bo_unreserve(rbo); 202 } 203 204 static int radeon_gem_handle_lockup(struct radeon_device *rdev, int r) 205 { 206 if (r == -EDEADLK) { 207 r = radeon_gpu_reset(rdev); 208 if (!r) 209 r = -EAGAIN; 210 } 211 return r; 212 } 213 214 /* 215 * GEM ioctls. 216 */ 217 int radeon_gem_info_ioctl(struct drm_device *dev, void *data, 218 struct drm_file *filp) 219 { 220 struct radeon_device *rdev = dev->dev_private; 221 struct drm_radeon_gem_info *args = data; 222 struct ttm_mem_type_manager *man; 223 unsigned i; 224 225 man = &rdev->mman.bdev.man[TTM_PL_VRAM]; 226 227 args->vram_size = rdev->mc.real_vram_size; 228 args->vram_visible = (u64)man->size << PAGE_SHIFT; 229 if (rdev->stollen_vga_memory) 230 args->vram_visible -= radeon_bo_size(rdev->stollen_vga_memory); 231 args->vram_visible -= radeon_fbdev_total_size(rdev); 232 args->gart_size = rdev->mc.gtt_size - 4096 - RADEON_IB_POOL_SIZE*64*1024; 233 for(i = 0; i < RADEON_NUM_RINGS; ++i) 234 args->gart_size -= rdev->ring[i].ring_size; 235 return 0; 236 } 237 238 int radeon_gem_pread_ioctl(struct drm_device *dev, void *data, 239 struct drm_file *filp) 240 { 241 /* TODO: implement */ 242 DRM_ERROR("unimplemented %s\n", __func__); 243 return -ENOSYS; 244 } 245 246 int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data, 247 struct drm_file *filp) 248 { 249 /* TODO: implement */ 250 DRM_ERROR("unimplemented %s\n", __func__); 251 return -ENOSYS; 252 } 253 254 int radeon_gem_create_ioctl(struct drm_device *dev, void *data, 255 struct drm_file *filp) 256 { 257 struct radeon_device *rdev = dev->dev_private; 258 struct drm_radeon_gem_create *args = data; 259 struct drm_gem_object *gobj; 260 uint32_t handle; 261 int r; 262 263 lockmgr(&rdev->exclusive_lock, LK_SHARED); 264 /* create a gem object to contain this object in */ 265 args->size = roundup(args->size, PAGE_SIZE); 266 r = radeon_gem_object_create(rdev, args->size, args->alignment, 267 args->initial_domain, false, 268 false, &gobj); 269 if (r) { 270 lockmgr(&rdev->exclusive_lock, LK_RELEASE); 271 r = radeon_gem_handle_lockup(rdev, r); 272 return r; 273 } 274 handle = 0; 275 r = drm_gem_handle_create(filp, gobj, &handle); 276 /* drop reference from allocate - handle holds it now */ 277 drm_gem_object_unreference_unlocked(gobj); 278 if (r) { 279 lockmgr(&rdev->exclusive_lock, LK_RELEASE); 280 r = radeon_gem_handle_lockup(rdev, r); 281 return r; 282 } 283 args->handle = handle; 284 lockmgr(&rdev->exclusive_lock, LK_RELEASE); 285 return 0; 286 } 287 288 int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data, 289 struct drm_file *filp) 290 { 291 /* transition the BO to a domain - 292 * just validate the BO into a certain domain */ 293 struct radeon_device *rdev = dev->dev_private; 294 struct drm_radeon_gem_set_domain *args = data; 295 struct drm_gem_object *gobj; 296 struct radeon_bo *robj; 297 int r; 298 299 /* for now if someone requests domain CPU - 300 * just make sure the buffer is finished with */ 301 lockmgr(&rdev->exclusive_lock, LK_SHARED); 302 303 /* just do a BO wait for now */ 304 gobj = drm_gem_object_lookup(dev, filp, args->handle); 305 if (gobj == NULL) { 306 lockmgr(&rdev->exclusive_lock, LK_RELEASE); 307 return -ENOENT; 308 } 309 robj = gem_to_radeon_bo(gobj); 310 311 r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain); 312 313 drm_gem_object_unreference_unlocked(gobj); 314 lockmgr(&rdev->exclusive_lock, LK_RELEASE); 315 r = radeon_gem_handle_lockup(robj->rdev, r); 316 return r; 317 } 318 319 int radeon_mode_dumb_mmap(struct drm_file *filp, 320 struct drm_device *dev, 321 uint32_t handle, uint64_t *offset_p) 322 { 323 struct drm_gem_object *gobj; 324 struct radeon_bo *robj; 325 326 gobj = drm_gem_object_lookup(dev, filp, handle); 327 if (gobj == NULL) { 328 return -ENOENT; 329 } 330 robj = gem_to_radeon_bo(gobj); 331 *offset_p = radeon_bo_mmap_offset(robj); 332 drm_gem_object_unreference_unlocked(gobj); 333 return 0; 334 } 335 336 int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data, 337 struct drm_file *filp) 338 { 339 struct drm_radeon_gem_mmap *args = data; 340 341 return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr); 342 } 343 344 int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, 345 struct drm_file *filp) 346 { 347 struct radeon_device *rdev = dev->dev_private; 348 struct drm_radeon_gem_busy *args = data; 349 struct drm_gem_object *gobj; 350 struct radeon_bo *robj; 351 int r; 352 uint32_t cur_placement = 0; 353 354 gobj = drm_gem_object_lookup(dev, filp, args->handle); 355 if (gobj == NULL) { 356 return -ENOENT; 357 } 358 robj = gem_to_radeon_bo(gobj); 359 r = radeon_bo_wait(robj, &cur_placement, true); 360 switch (cur_placement) { 361 case TTM_PL_VRAM: 362 args->domain = RADEON_GEM_DOMAIN_VRAM; 363 break; 364 case TTM_PL_TT: 365 args->domain = RADEON_GEM_DOMAIN_GTT; 366 break; 367 case TTM_PL_SYSTEM: 368 args->domain = RADEON_GEM_DOMAIN_CPU; 369 default: 370 break; 371 } 372 drm_gem_object_unreference_unlocked(gobj); 373 r = radeon_gem_handle_lockup(rdev, r); 374 return r; 375 } 376 377 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data, 378 struct drm_file *filp) 379 { 380 struct radeon_device *rdev = dev->dev_private; 381 struct drm_radeon_gem_wait_idle *args = data; 382 struct drm_gem_object *gobj; 383 struct radeon_bo *robj; 384 int r; 385 386 gobj = drm_gem_object_lookup(dev, filp, args->handle); 387 if (gobj == NULL) { 388 return -ENOENT; 389 } 390 robj = gem_to_radeon_bo(gobj); 391 r = radeon_bo_wait(robj, NULL, false); 392 /* callback hw specific functions if any */ 393 if (rdev->asic->ioctl_wait_idle) 394 robj->rdev->asic->ioctl_wait_idle(rdev, robj); 395 drm_gem_object_unreference_unlocked(gobj); 396 r = radeon_gem_handle_lockup(rdev, r); 397 return r; 398 } 399 400 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data, 401 struct drm_file *filp) 402 { 403 struct drm_radeon_gem_set_tiling *args = data; 404 struct drm_gem_object *gobj; 405 struct radeon_bo *robj; 406 int r = 0; 407 408 DRM_DEBUG("%d \n", args->handle); 409 gobj = drm_gem_object_lookup(dev, filp, args->handle); 410 if (gobj == NULL) 411 return -ENOENT; 412 robj = gem_to_radeon_bo(gobj); 413 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch); 414 drm_gem_object_unreference_unlocked(gobj); 415 return r; 416 } 417 418 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data, 419 struct drm_file *filp) 420 { 421 struct drm_radeon_gem_get_tiling *args = data; 422 struct drm_gem_object *gobj; 423 struct radeon_bo *rbo; 424 int r = 0; 425 426 DRM_DEBUG("\n"); 427 gobj = drm_gem_object_lookup(dev, filp, args->handle); 428 if (gobj == NULL) 429 return -ENOENT; 430 rbo = gem_to_radeon_bo(gobj); 431 r = radeon_bo_reserve(rbo, false); 432 if (unlikely(r != 0)) 433 goto out; 434 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch); 435 radeon_bo_unreserve(rbo); 436 out: 437 drm_gem_object_unreference_unlocked(gobj); 438 return r; 439 } 440 441 int radeon_gem_va_ioctl(struct drm_device *dev, void *data, 442 struct drm_file *filp) 443 { 444 struct drm_radeon_gem_va *args = data; 445 struct drm_gem_object *gobj; 446 struct radeon_device *rdev = dev->dev_private; 447 struct radeon_fpriv *fpriv = filp->driver_priv; 448 struct radeon_bo *rbo; 449 struct radeon_bo_va *bo_va; 450 u32 invalid_flags; 451 int r = 0; 452 453 if (!rdev->vm_manager.enabled) { 454 args->operation = RADEON_VA_RESULT_ERROR; 455 return -ENOTTY; 456 } 457 458 /* !! DONT REMOVE !! 459 * We don't support vm_id yet, to be sure we don't have have broken 460 * userspace, reject anyone trying to use non 0 value thus moving 461 * forward we can use those fields without breaking existant userspace 462 */ 463 if (args->vm_id) { 464 args->operation = RADEON_VA_RESULT_ERROR; 465 return -EINVAL; 466 } 467 468 if (args->offset < RADEON_VA_RESERVED_SIZE) { 469 dev_err(dev->dev, 470 "offset 0x%lX is in reserved area 0x%X\n", 471 (unsigned long)args->offset, 472 RADEON_VA_RESERVED_SIZE); 473 args->operation = RADEON_VA_RESULT_ERROR; 474 return -EINVAL; 475 } 476 477 /* don't remove, we need to enforce userspace to set the snooped flag 478 * otherwise we will endup with broken userspace and we won't be able 479 * to enable this feature without adding new interface 480 */ 481 invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM; 482 if ((args->flags & invalid_flags)) { 483 dev_err(dev->dev, "invalid flags 0x%08X vs 0x%08X\n", 484 args->flags, invalid_flags); 485 args->operation = RADEON_VA_RESULT_ERROR; 486 return -EINVAL; 487 } 488 if (!(args->flags & RADEON_VM_PAGE_SNOOPED)) { 489 dev_err(dev->dev, "only supported snooped mapping for now\n"); 490 args->operation = RADEON_VA_RESULT_ERROR; 491 return -EINVAL; 492 } 493 494 switch (args->operation) { 495 case RADEON_VA_MAP: 496 case RADEON_VA_UNMAP: 497 break; 498 default: 499 dev_err(dev->dev, "unsupported operation %d\n", 500 args->operation); 501 args->operation = RADEON_VA_RESULT_ERROR; 502 return -EINVAL; 503 } 504 505 gobj = drm_gem_object_lookup(dev, filp, args->handle); 506 if (gobj == NULL) { 507 args->operation = RADEON_VA_RESULT_ERROR; 508 return -ENOENT; 509 } 510 rbo = gem_to_radeon_bo(gobj); 511 r = radeon_bo_reserve(rbo, false); 512 if (r) { 513 args->operation = RADEON_VA_RESULT_ERROR; 514 drm_gem_object_unreference_unlocked(gobj); 515 return r; 516 } 517 bo_va = radeon_vm_bo_find(&fpriv->vm, rbo); 518 if (!bo_va) { 519 args->operation = RADEON_VA_RESULT_ERROR; 520 drm_gem_object_unreference_unlocked(gobj); 521 return -ENOENT; 522 } 523 524 switch (args->operation) { 525 case RADEON_VA_MAP: 526 if (bo_va->soffset) { 527 args->operation = RADEON_VA_RESULT_VA_EXIST; 528 args->offset = bo_va->soffset; 529 goto out; 530 } 531 r = radeon_vm_bo_set_addr(rdev, bo_va, args->offset, args->flags); 532 break; 533 case RADEON_VA_UNMAP: 534 r = radeon_vm_bo_set_addr(rdev, bo_va, 0, 0); 535 break; 536 default: 537 break; 538 } 539 args->operation = RADEON_VA_RESULT_OK; 540 if (r) { 541 args->operation = RADEON_VA_RESULT_ERROR; 542 } 543 out: 544 radeon_bo_unreserve(rbo); 545 drm_gem_object_unreference_unlocked(gobj); 546 return r; 547 } 548 549 int radeon_mode_dumb_create(struct drm_file *file_priv, 550 struct drm_device *dev, 551 struct drm_mode_create_dumb *args) 552 { 553 struct radeon_device *rdev = dev->dev_private; 554 struct drm_gem_object *gobj; 555 uint32_t handle; 556 int r; 557 558 args->pitch = radeon_align_pitch(rdev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8); 559 args->size = args->pitch * args->height; 560 args->size = roundup2(args->size, PAGE_SIZE); 561 562 r = radeon_gem_object_create(rdev, args->size, 0, 563 RADEON_GEM_DOMAIN_VRAM, 564 false, ttm_bo_type_device, 565 &gobj); 566 if (r) 567 return -ENOMEM; 568 569 r = drm_gem_handle_create(file_priv, gobj, &handle); 570 /* drop reference from allocate - handle holds it now */ 571 drm_gem_object_unreference_unlocked(gobj); 572 if (r) { 573 return r; 574 } 575 args->handle = handle; 576 return 0; 577 } 578 579 int radeon_mode_dumb_destroy(struct drm_file *file_priv, 580 struct drm_device *dev, 581 uint32_t handle) 582 { 583 return drm_gem_handle_delete(file_priv, handle); 584 } 585