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 != -ERESTARTSYS) { 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 if (r == -ERESTARTSYS) 271 r = -EINTR; 272 lockmgr(&rdev->exclusive_lock, LK_RELEASE); 273 r = radeon_gem_handle_lockup(rdev, r); 274 return r; 275 } 276 handle = 0; 277 r = drm_gem_handle_create(filp, gobj, &handle); 278 /* drop reference from allocate - handle holds it now */ 279 drm_gem_object_unreference_unlocked(gobj); 280 if (r) { 281 lockmgr(&rdev->exclusive_lock, LK_RELEASE); 282 r = radeon_gem_handle_lockup(rdev, r); 283 return r; 284 } 285 args->handle = handle; 286 lockmgr(&rdev->exclusive_lock, LK_RELEASE); 287 return 0; 288 } 289 290 int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data, 291 struct drm_file *filp) 292 { 293 /* transition the BO to a domain - 294 * just validate the BO into a certain domain */ 295 struct radeon_device *rdev = dev->dev_private; 296 struct drm_radeon_gem_set_domain *args = data; 297 struct drm_gem_object *gobj; 298 struct radeon_bo *robj; 299 int r; 300 301 /* for now if someone requests domain CPU - 302 * just make sure the buffer is finished with */ 303 lockmgr(&rdev->exclusive_lock, LK_SHARED); 304 305 /* just do a BO wait for now */ 306 gobj = drm_gem_object_lookup(dev, filp, args->handle); 307 if (gobj == NULL) { 308 lockmgr(&rdev->exclusive_lock, LK_RELEASE); 309 return -ENOENT; 310 } 311 robj = gem_to_radeon_bo(gobj); 312 313 r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain); 314 315 drm_gem_object_unreference_unlocked(gobj); 316 lockmgr(&rdev->exclusive_lock, LK_RELEASE); 317 r = radeon_gem_handle_lockup(robj->rdev, r); 318 return r; 319 } 320 321 int radeon_mode_dumb_mmap(struct drm_file *filp, 322 struct drm_device *dev, 323 uint32_t handle, uint64_t *offset_p) 324 { 325 struct drm_gem_object *gobj; 326 struct radeon_bo *robj; 327 328 gobj = drm_gem_object_lookup(dev, filp, handle); 329 if (gobj == NULL) { 330 return -ENOENT; 331 } 332 robj = gem_to_radeon_bo(gobj); 333 *offset_p = radeon_bo_mmap_offset(robj); 334 drm_gem_object_unreference_unlocked(gobj); 335 return 0; 336 } 337 338 int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data, 339 struct drm_file *filp) 340 { 341 struct drm_radeon_gem_mmap *args = data; 342 343 return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr); 344 } 345 346 int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, 347 struct drm_file *filp) 348 { 349 struct radeon_device *rdev = dev->dev_private; 350 struct drm_radeon_gem_busy *args = data; 351 struct drm_gem_object *gobj; 352 struct radeon_bo *robj; 353 int r; 354 uint32_t cur_placement = 0; 355 356 gobj = drm_gem_object_lookup(dev, filp, args->handle); 357 if (gobj == NULL) { 358 return -ENOENT; 359 } 360 robj = gem_to_radeon_bo(gobj); 361 r = radeon_bo_wait(robj, &cur_placement, true); 362 switch (cur_placement) { 363 case TTM_PL_VRAM: 364 args->domain = RADEON_GEM_DOMAIN_VRAM; 365 break; 366 case TTM_PL_TT: 367 args->domain = RADEON_GEM_DOMAIN_GTT; 368 break; 369 case TTM_PL_SYSTEM: 370 args->domain = RADEON_GEM_DOMAIN_CPU; 371 default: 372 break; 373 } 374 drm_gem_object_unreference_unlocked(gobj); 375 r = radeon_gem_handle_lockup(rdev, r); 376 return r; 377 } 378 379 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data, 380 struct drm_file *filp) 381 { 382 struct radeon_device *rdev = dev->dev_private; 383 struct drm_radeon_gem_wait_idle *args = data; 384 struct drm_gem_object *gobj; 385 struct radeon_bo *robj; 386 int r; 387 388 gobj = drm_gem_object_lookup(dev, filp, args->handle); 389 if (gobj == NULL) { 390 return -ENOENT; 391 } 392 robj = gem_to_radeon_bo(gobj); 393 r = radeon_bo_wait(robj, NULL, false); 394 /* callback hw specific functions if any */ 395 if (rdev->asic->ioctl_wait_idle) 396 robj->rdev->asic->ioctl_wait_idle(rdev, robj); 397 drm_gem_object_unreference_unlocked(gobj); 398 if (r == -ERESTARTSYS) 399 r = -EINTR; 400 r = radeon_gem_handle_lockup(rdev, r); 401 return r; 402 } 403 404 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data, 405 struct drm_file *filp) 406 { 407 struct drm_radeon_gem_set_tiling *args = data; 408 struct drm_gem_object *gobj; 409 struct radeon_bo *robj; 410 int r = 0; 411 412 DRM_DEBUG("%d \n", args->handle); 413 gobj = drm_gem_object_lookup(dev, filp, args->handle); 414 if (gobj == NULL) 415 return -ENOENT; 416 robj = gem_to_radeon_bo(gobj); 417 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch); 418 drm_gem_object_unreference_unlocked(gobj); 419 return r; 420 } 421 422 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data, 423 struct drm_file *filp) 424 { 425 struct drm_radeon_gem_get_tiling *args = data; 426 struct drm_gem_object *gobj; 427 struct radeon_bo *rbo; 428 int r = 0; 429 430 DRM_DEBUG("\n"); 431 gobj = drm_gem_object_lookup(dev, filp, args->handle); 432 if (gobj == NULL) 433 return -ENOENT; 434 rbo = gem_to_radeon_bo(gobj); 435 r = radeon_bo_reserve(rbo, false); 436 if (unlikely(r != 0)) 437 goto out; 438 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch); 439 radeon_bo_unreserve(rbo); 440 out: 441 drm_gem_object_unreference_unlocked(gobj); 442 return r; 443 } 444 445 int radeon_gem_va_ioctl(struct drm_device *dev, void *data, 446 struct drm_file *filp) 447 { 448 struct drm_radeon_gem_va *args = data; 449 struct drm_gem_object *gobj; 450 struct radeon_device *rdev = dev->dev_private; 451 struct radeon_fpriv *fpriv = filp->driver_priv; 452 struct radeon_bo *rbo; 453 struct radeon_bo_va *bo_va; 454 u32 invalid_flags; 455 int r = 0; 456 457 if (!rdev->vm_manager.enabled) { 458 args->operation = RADEON_VA_RESULT_ERROR; 459 return -ENOTTY; 460 } 461 462 /* !! DONT REMOVE !! 463 * We don't support vm_id yet, to be sure we don't have have broken 464 * userspace, reject anyone trying to use non 0 value thus moving 465 * forward we can use those fields without breaking existant userspace 466 */ 467 if (args->vm_id) { 468 args->operation = RADEON_VA_RESULT_ERROR; 469 return -EINVAL; 470 } 471 472 if (args->offset < RADEON_VA_RESERVED_SIZE) { 473 dev_err(dev->dev, 474 "offset 0x%lX is in reserved area 0x%X\n", 475 (unsigned long)args->offset, 476 RADEON_VA_RESERVED_SIZE); 477 args->operation = RADEON_VA_RESULT_ERROR; 478 return -EINVAL; 479 } 480 481 /* don't remove, we need to enforce userspace to set the snooped flag 482 * otherwise we will endup with broken userspace and we won't be able 483 * to enable this feature without adding new interface 484 */ 485 invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM; 486 if ((args->flags & invalid_flags)) { 487 dev_err(dev->dev, "invalid flags 0x%08X vs 0x%08X\n", 488 args->flags, invalid_flags); 489 args->operation = RADEON_VA_RESULT_ERROR; 490 return -EINVAL; 491 } 492 if (!(args->flags & RADEON_VM_PAGE_SNOOPED)) { 493 dev_err(dev->dev, "only supported snooped mapping for now\n"); 494 args->operation = RADEON_VA_RESULT_ERROR; 495 return -EINVAL; 496 } 497 498 switch (args->operation) { 499 case RADEON_VA_MAP: 500 case RADEON_VA_UNMAP: 501 break; 502 default: 503 dev_err(dev->dev, "unsupported operation %d\n", 504 args->operation); 505 args->operation = RADEON_VA_RESULT_ERROR; 506 return -EINVAL; 507 } 508 509 gobj = drm_gem_object_lookup(dev, filp, args->handle); 510 if (gobj == NULL) { 511 args->operation = RADEON_VA_RESULT_ERROR; 512 return -ENOENT; 513 } 514 rbo = gem_to_radeon_bo(gobj); 515 r = radeon_bo_reserve(rbo, false); 516 if (r) { 517 args->operation = RADEON_VA_RESULT_ERROR; 518 drm_gem_object_unreference_unlocked(gobj); 519 return r; 520 } 521 bo_va = radeon_vm_bo_find(&fpriv->vm, rbo); 522 if (!bo_va) { 523 args->operation = RADEON_VA_RESULT_ERROR; 524 drm_gem_object_unreference_unlocked(gobj); 525 return -ENOENT; 526 } 527 528 switch (args->operation) { 529 case RADEON_VA_MAP: 530 if (bo_va->soffset) { 531 args->operation = RADEON_VA_RESULT_VA_EXIST; 532 args->offset = bo_va->soffset; 533 goto out; 534 } 535 r = radeon_vm_bo_set_addr(rdev, bo_va, args->offset, args->flags); 536 break; 537 case RADEON_VA_UNMAP: 538 r = radeon_vm_bo_set_addr(rdev, bo_va, 0, 0); 539 break; 540 default: 541 break; 542 } 543 args->operation = RADEON_VA_RESULT_OK; 544 if (r) { 545 args->operation = RADEON_VA_RESULT_ERROR; 546 } 547 out: 548 radeon_bo_unreserve(rbo); 549 drm_gem_object_unreference_unlocked(gobj); 550 return r; 551 } 552 553 int radeon_mode_dumb_create(struct drm_file *file_priv, 554 struct drm_device *dev, 555 struct drm_mode_create_dumb *args) 556 { 557 struct radeon_device *rdev = dev->dev_private; 558 struct drm_gem_object *gobj; 559 uint32_t handle; 560 int r; 561 562 args->pitch = radeon_align_pitch(rdev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8); 563 args->size = args->pitch * args->height; 564 args->size = roundup2(args->size, PAGE_SIZE); 565 566 r = radeon_gem_object_create(rdev, args->size, 0, 567 RADEON_GEM_DOMAIN_VRAM, 568 false, ttm_bo_type_device, 569 &gobj); 570 if (r) 571 return -ENOMEM; 572 573 r = drm_gem_handle_create(file_priv, gobj, &handle); 574 /* drop reference from allocate - handle holds it now */ 575 drm_gem_object_unreference_unlocked(gobj); 576 if (r) { 577 return r; 578 } 579 args->handle = handle; 580 return 0; 581 } 582 583 int radeon_mode_dumb_destroy(struct drm_file *file_priv, 584 struct drm_device *dev, 585 uint32_t handle) 586 { 587 return drm_gem_handle_delete(file_priv, handle); 588 } 589