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 29#include <sys/cdefs.h> 30__FBSDID("$FreeBSD$"); 31 32#include <dev/drm2/drmP.h> 33#include <dev/drm2/radeon/radeon_drm.h> 34#include "radeon.h" 35#include "radeon_gem.h" 36 37int radeon_gem_object_init(struct drm_gem_object *obj) 38{ 39 panic("radeon_gem_object_init() must not be called"); 40 41 return 0; 42} 43 44void radeon_gem_object_free(struct drm_gem_object *gobj) 45{ 46 struct radeon_bo *robj = gem_to_radeon_bo(gobj); 47 48 if (robj) { 49#ifdef DUMBBELL_WIP 50 if (robj->gem_base.import_attach) 51 drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg); 52#endif /* DUMBBELL_WIP */ 53 radeon_bo_unref(&robj); 54 } 55} 56 57int radeon_gem_object_create(struct radeon_device *rdev, int size, 58 int alignment, int initial_domain, 59 bool discardable, bool kernel, 60 struct drm_gem_object **obj) 61{ 62 struct radeon_bo *robj; 63 unsigned long max_size; 64 int r; 65 66 *obj = NULL; 67 /* At least align on page size */ 68 if (alignment < PAGE_SIZE) { 69 alignment = PAGE_SIZE; 70 } 71 72 /* maximun bo size is the minimun btw visible vram and gtt size */ 73 max_size = min(rdev->mc.visible_vram_size, rdev->mc.gtt_size); 74 if (size > max_size) { 75 DRM_ERROR("%s:%d alloc size %dMb bigger than %ldMb limit\n", 76 __func__, __LINE__, size >> 20, max_size >> 20); 77 return -ENOMEM; 78 } 79 80retry: 81 r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain, NULL, &robj); 82 if (r) { 83 if (r != -ERESTART) { 84 if (initial_domain == RADEON_GEM_DOMAIN_VRAM) { 85 initial_domain |= RADEON_GEM_DOMAIN_GTT; 86 goto retry; 87 } 88 DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n", 89 size, initial_domain, alignment, r); 90 } 91 return r; 92 } 93 *obj = &robj->gem_base; 94 95 sx_xlock(&rdev->gem.mutex); 96 list_add_tail(&robj->list, &rdev->gem.objects); 97 sx_xunlock(&rdev->gem.mutex); 98 99 return 0; 100} 101 102static int radeon_gem_set_domain(struct drm_gem_object *gobj, 103 uint32_t rdomain, uint32_t wdomain) 104{ 105 struct radeon_bo *robj; 106 uint32_t domain; 107 int r; 108 109 /* FIXME: reeimplement */ 110 robj = gem_to_radeon_bo(gobj); 111 /* work out where to validate the buffer to */ 112 domain = wdomain; 113 if (!domain) { 114 domain = rdomain; 115 } 116 if (!domain) { 117 /* Do nothings */ 118 DRM_ERROR("Set domain without domain !\n"); 119 return 0; 120 } 121 if (domain == RADEON_GEM_DOMAIN_CPU) { 122 /* Asking for cpu access wait for object idle */ 123 r = radeon_bo_wait(robj, NULL, false); 124 if (r) { 125 DRM_ERROR("Failed to wait for object !\n"); 126 return r; 127 } 128 } 129 return 0; 130} 131 132int radeon_gem_init(struct radeon_device *rdev) 133{ 134 INIT_LIST_HEAD(&rdev->gem.objects); 135 return 0; 136} 137 138void radeon_gem_fini(struct radeon_device *rdev) 139{ 140 radeon_bo_force_delete(rdev); 141} 142 143/* 144 * Call from drm_gem_handle_create which appear in both new and open ioctl 145 * case. 146 */ 147int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv) 148{ 149 struct radeon_bo *rbo = gem_to_radeon_bo(obj); 150 struct radeon_device *rdev = rbo->rdev; 151 struct radeon_fpriv *fpriv = file_priv->driver_priv; 152 struct radeon_vm *vm = &fpriv->vm; 153 struct radeon_bo_va *bo_va; 154 int r; 155 156 if (rdev->family < CHIP_CAYMAN) { 157 return 0; 158 } 159 160 r = radeon_bo_reserve(rbo, false); 161 if (r) { 162 return r; 163 } 164 165 bo_va = radeon_vm_bo_find(vm, rbo); 166 if (!bo_va) { 167 bo_va = radeon_vm_bo_add(rdev, vm, rbo); 168 } else { 169 ++bo_va->ref_count; 170 } 171 radeon_bo_unreserve(rbo); 172 173 return 0; 174} 175 176void radeon_gem_object_close(struct drm_gem_object *obj, 177 struct drm_file *file_priv) 178{ 179 struct radeon_bo *rbo = gem_to_radeon_bo(obj); 180 struct radeon_device *rdev = rbo->rdev; 181 struct radeon_fpriv *fpriv = file_priv->driver_priv; 182 struct radeon_vm *vm = &fpriv->vm; 183 struct radeon_bo_va *bo_va; 184 int r; 185 186 if (rdev->family < CHIP_CAYMAN) { 187 return; 188 } 189 190 r = radeon_bo_reserve(rbo, true); 191 if (r) { 192 dev_err(rdev->dev, "leaking bo va because " 193 "we fail to reserve bo (%d)\n", r); 194 return; 195 } 196 bo_va = radeon_vm_bo_find(vm, rbo); 197 if (bo_va) { 198 if (--bo_va->ref_count == 0) { 199 radeon_vm_bo_rmv(rdev, bo_va); 200 } 201 } 202 radeon_bo_unreserve(rbo); 203} 204 205static int radeon_gem_handle_lockup(struct radeon_device *rdev, int r) 206{ 207 if (r == -EDEADLK) { 208 r = radeon_gpu_reset(rdev); 209 if (!r) 210 r = -EAGAIN; 211 } 212 return r; 213} 214 215/* 216 * GEM ioctls. 217 */ 218int radeon_gem_info_ioctl(struct drm_device *dev, void *data, 219 struct drm_file *filp) 220{ 221 struct radeon_device *rdev = dev->dev_private; 222 struct drm_radeon_gem_info *args = data; 223 struct ttm_mem_type_manager *man; 224 unsigned i; 225 226 man = &rdev->mman.bdev.man[TTM_PL_VRAM]; 227 228 args->vram_size = rdev->mc.real_vram_size; 229 args->vram_visible = (u64)man->size << PAGE_SHIFT; 230 if (rdev->stollen_vga_memory) 231 args->vram_visible -= radeon_bo_size(rdev->stollen_vga_memory); 232 args->vram_visible -= radeon_fbdev_total_size(rdev); 233 args->gart_size = rdev->mc.gtt_size - 4096 - RADEON_IB_POOL_SIZE*64*1024; 234 for(i = 0; i < RADEON_NUM_RINGS; ++i) 235 args->gart_size -= rdev->ring[i].ring_size; 236 return 0; 237} 238 239int radeon_gem_pread_ioctl(struct drm_device *dev, void *data, 240 struct drm_file *filp) 241{ 242 /* TODO: implement */ 243 DRM_ERROR("unimplemented %s\n", __func__); 244 return -ENOSYS; 245} 246 247int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data, 248 struct drm_file *filp) 249{ 250 /* TODO: implement */ 251 DRM_ERROR("unimplemented %s\n", __func__); 252 return -ENOSYS; 253} 254 255int radeon_gem_create_ioctl(struct drm_device *dev, void *data, 256 struct drm_file *filp) 257{ 258 struct radeon_device *rdev = dev->dev_private; 259 struct drm_radeon_gem_create *args = data; 260 struct drm_gem_object *gobj; 261 uint32_t handle; 262 int r; 263 264 sx_slock(&rdev->exclusive_lock); 265 /* create a gem object to contain this object in */ 266 args->size = roundup(args->size, PAGE_SIZE); 267 r = radeon_gem_object_create(rdev, args->size, args->alignment, 268 args->initial_domain, false, 269 false, &gobj); 270 if (r) { 271 sx_sunlock(&rdev->exclusive_lock); 272 r = radeon_gem_handle_lockup(rdev, r); 273 return r; 274 } 275 handle = 0; 276 r = drm_gem_handle_create(filp, gobj, &handle); 277 /* drop reference from allocate - handle holds it now */ 278 drm_gem_object_unreference_unlocked(gobj); 279 if (r) { 280 sx_sunlock(&rdev->exclusive_lock); 281 r = radeon_gem_handle_lockup(rdev, r); 282 return r; 283 } 284 args->handle = handle; 285 sx_sunlock(&rdev->exclusive_lock); 286 return 0; 287} 288 289int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data, 290 struct drm_file *filp) 291{ 292 /* transition the BO to a domain - 293 * just validate the BO into a certain domain */ 294 struct radeon_device *rdev = dev->dev_private; 295 struct drm_radeon_gem_set_domain *args = data; 296 struct drm_gem_object *gobj; 297 struct radeon_bo *robj; 298 int r; 299 300 /* for now if someone requests domain CPU - 301 * just make sure the buffer is finished with */ 302 sx_slock(&rdev->exclusive_lock); 303 304 /* just do a BO wait for now */ 305 gobj = drm_gem_object_lookup(dev, filp, args->handle); 306 if (gobj == NULL) { 307 sx_sunlock(&rdev->exclusive_lock); 308 return -ENOENT; 309 } 310 robj = gem_to_radeon_bo(gobj); 311 312 r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain); 313 314 drm_gem_object_unreference_unlocked(gobj); 315 sx_sunlock(&rdev->exclusive_lock); 316 r = radeon_gem_handle_lockup(robj->rdev, r); 317 return r; 318} 319 320int radeon_mode_dumb_mmap(struct drm_file *filp, 321 struct drm_device *dev, 322 uint32_t handle, uint64_t *offset_p) 323{ 324 struct drm_gem_object *gobj; 325 struct radeon_bo *robj; 326 327 gobj = drm_gem_object_lookup(dev, filp, handle); 328 if (gobj == NULL) { 329 return -ENOENT; 330 } 331 robj = gem_to_radeon_bo(gobj); 332 *offset_p = radeon_bo_mmap_offset(robj); 333 drm_gem_object_unreference_unlocked(gobj); 334 return 0; 335} 336 337int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data, 338 struct drm_file *filp) 339{ 340 struct drm_radeon_gem_mmap *args = data; 341 342 return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr); 343} 344 345int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, 346 struct drm_file *filp) 347{ 348 struct radeon_device *rdev = dev->dev_private; 349 struct drm_radeon_gem_busy *args = data; 350 struct drm_gem_object *gobj; 351 struct radeon_bo *robj; 352 int r; 353 uint32_t cur_placement = 0; 354 355 gobj = drm_gem_object_lookup(dev, filp, args->handle); 356 if (gobj == NULL) { 357 return -ENOENT; 358 } 359 robj = gem_to_radeon_bo(gobj); 360 r = radeon_bo_wait(robj, &cur_placement, true); 361 switch (cur_placement) { 362 case TTM_PL_VRAM: 363 args->domain = RADEON_GEM_DOMAIN_VRAM; 364 break; 365 case TTM_PL_TT: 366 args->domain = RADEON_GEM_DOMAIN_GTT; 367 break; 368 case TTM_PL_SYSTEM: 369 args->domain = RADEON_GEM_DOMAIN_CPU; 370 default: 371 break; 372 } 373 drm_gem_object_unreference_unlocked(gobj); 374 r = radeon_gem_handle_lockup(rdev, r); 375 return r; 376} 377 378int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data, 379 struct drm_file *filp) 380{ 381 struct radeon_device *rdev = dev->dev_private; 382 struct drm_radeon_gem_wait_idle *args = data; 383 struct drm_gem_object *gobj; 384 struct radeon_bo *robj; 385 int r; 386 387 gobj = drm_gem_object_lookup(dev, filp, args->handle); 388 if (gobj == NULL) { 389 return -ENOENT; 390 } 391 robj = gem_to_radeon_bo(gobj); 392 r = radeon_bo_wait(robj, NULL, false); 393 /* callback hw specific functions if any */ 394 if (rdev->asic->ioctl_wait_idle) 395 robj->rdev->asic->ioctl_wait_idle(rdev, robj); 396 drm_gem_object_unreference_unlocked(gobj); 397 r = radeon_gem_handle_lockup(rdev, r); 398 return r; 399} 400 401int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data, 402 struct drm_file *filp) 403{ 404 struct drm_radeon_gem_set_tiling *args = data; 405 struct drm_gem_object *gobj; 406 struct radeon_bo *robj; 407 int r = 0; 408 409 DRM_DEBUG("%d \n", args->handle); 410 gobj = drm_gem_object_lookup(dev, filp, args->handle); 411 if (gobj == NULL) 412 return -ENOENT; 413 robj = gem_to_radeon_bo(gobj); 414 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch); 415 drm_gem_object_unreference_unlocked(gobj); 416 return r; 417} 418 419int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data, 420 struct drm_file *filp) 421{ 422 struct drm_radeon_gem_get_tiling *args = data; 423 struct drm_gem_object *gobj; 424 struct radeon_bo *rbo; 425 int r = 0; 426 427 DRM_DEBUG("\n"); 428 gobj = drm_gem_object_lookup(dev, filp, args->handle); 429 if (gobj == NULL) 430 return -ENOENT; 431 rbo = gem_to_radeon_bo(gobj); 432 r = radeon_bo_reserve(rbo, false); 433 if (unlikely(r != 0)) 434 goto out; 435 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch); 436 radeon_bo_unreserve(rbo); 437out: 438 drm_gem_object_unreference_unlocked(gobj); 439 return r; 440} 441 442int radeon_gem_va_ioctl(struct drm_device *dev, void *data, 443 struct drm_file *filp) 444{ 445 struct drm_radeon_gem_va *args = data; 446 struct drm_gem_object *gobj; 447 struct radeon_device *rdev = dev->dev_private; 448 struct radeon_fpriv *fpriv = filp->driver_priv; 449 struct radeon_bo *rbo; 450 struct radeon_bo_va *bo_va; 451 u32 invalid_flags; 452 int r = 0; 453 454 if (!rdev->vm_manager.enabled) { 455 args->operation = RADEON_VA_RESULT_ERROR; 456 return -ENOTTY; 457 } 458 459 /* !! DONT REMOVE !! 460 * We don't support vm_id yet, to be sure we don't have have broken 461 * userspace, reject anyone trying to use non 0 value thus moving 462 * forward we can use those fields without breaking existant userspace 463 */ 464 if (args->vm_id) { 465 args->operation = RADEON_VA_RESULT_ERROR; 466 return -EINVAL; 467 } 468 469 if (args->offset < RADEON_VA_RESERVED_SIZE) { 470 dev_err(dev->device, 471 "offset 0x%lX is in reserved area 0x%X\n", 472 (unsigned long)args->offset, 473 RADEON_VA_RESERVED_SIZE); 474 args->operation = RADEON_VA_RESULT_ERROR; 475 return -EINVAL; 476 } 477 478 /* don't remove, we need to enforce userspace to set the snooped flag 479 * otherwise we will endup with broken userspace and we won't be able 480 * to enable this feature without adding new interface 481 */ 482 invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM; 483 if ((args->flags & invalid_flags)) { 484 dev_err(dev->device, "invalid flags 0x%08X vs 0x%08X\n", 485 args->flags, invalid_flags); 486 args->operation = RADEON_VA_RESULT_ERROR; 487 return -EINVAL; 488 } 489 if (!(args->flags & RADEON_VM_PAGE_SNOOPED)) { 490 dev_err(dev->device, "only supported snooped mapping for now\n"); 491 args->operation = RADEON_VA_RESULT_ERROR; 492 return -EINVAL; 493 } 494 495 switch (args->operation) { 496 case RADEON_VA_MAP: 497 case RADEON_VA_UNMAP: 498 break; 499 default: 500 dev_err(dev->device, "unsupported operation %d\n", 501 args->operation); 502 args->operation = RADEON_VA_RESULT_ERROR; 503 return -EINVAL; 504 } 505 506 gobj = drm_gem_object_lookup(dev, filp, args->handle); 507 if (gobj == NULL) { 508 args->operation = RADEON_VA_RESULT_ERROR; 509 return -ENOENT; 510 } 511 rbo = gem_to_radeon_bo(gobj); 512 r = radeon_bo_reserve(rbo, false); 513 if (r) { 514 args->operation = RADEON_VA_RESULT_ERROR; 515 drm_gem_object_unreference_unlocked(gobj); 516 return r; 517 } 518 bo_va = radeon_vm_bo_find(&fpriv->vm, rbo); 519 if (!bo_va) { 520 args->operation = RADEON_VA_RESULT_ERROR; 521 drm_gem_object_unreference_unlocked(gobj); 522 return -ENOENT; 523 } 524 525 switch (args->operation) { 526 case RADEON_VA_MAP: 527 if (bo_va->soffset) { 528 args->operation = RADEON_VA_RESULT_VA_EXIST; 529 args->offset = bo_va->soffset; 530 goto out; 531 } 532 r = radeon_vm_bo_set_addr(rdev, bo_va, args->offset, args->flags); 533 break; 534 case RADEON_VA_UNMAP: 535 r = radeon_vm_bo_set_addr(rdev, bo_va, 0, 0); 536 break; 537 default: 538 break; 539 } 540 args->operation = RADEON_VA_RESULT_OK; 541 if (r) { 542 args->operation = RADEON_VA_RESULT_ERROR; 543 } 544out: 545 radeon_bo_unreserve(rbo); 546 drm_gem_object_unreference_unlocked(gobj); 547 return r; 548} 549 550int radeon_mode_dumb_create(struct drm_file *file_priv, 551 struct drm_device *dev, 552 struct drm_mode_create_dumb *args) 553{ 554 struct radeon_device *rdev = dev->dev_private; 555 struct drm_gem_object *gobj; 556 uint32_t handle; 557 int r; 558 559 args->pitch = radeon_align_pitch(rdev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8); 560 args->size = args->pitch * args->height; 561 args->size = roundup2(args->size, PAGE_SIZE); 562 563 r = radeon_gem_object_create(rdev, args->size, 0, 564 RADEON_GEM_DOMAIN_VRAM, 565 false, ttm_bo_type_device, 566 &gobj); 567 if (r) 568 return -ENOMEM; 569 570 handle = 0; 571 r = drm_gem_handle_create(file_priv, gobj, &handle); 572 /* drop reference from allocate - handle holds it now */ 573 drm_gem_object_unreference_unlocked(gobj); 574 if (r) { 575 return r; 576 } 577 args->handle = handle; 578 return 0; 579} 580 581int radeon_mode_dumb_destroy(struct drm_file *file_priv, 582 struct drm_device *dev, 583 uint32_t handle) 584{ 585 return drm_gem_handle_delete(file_priv, handle); 586} 587