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 FREEBSD_WIP 50 if (robj->gem_base.import_attach) 51 drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg); 52#endif /* FREEBSD_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 != -ERESTARTSYS) { 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 if (r == -ERESTARTSYS) 272 r = -EINTR; 273 sx_sunlock(&rdev->exclusive_lock); 274 r = radeon_gem_handle_lockup(rdev, r); 275 return r; 276 } 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 sx_sunlock(&rdev->exclusive_lock); 282 r = radeon_gem_handle_lockup(rdev, r); 283 return r; 284 } 285 args->handle = handle; 286 sx_sunlock(&rdev->exclusive_lock); 287 return 0; 288} 289 290int 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 sx_slock(&rdev->exclusive_lock); 304 305 /* just do a BO wait for now */ 306 gobj = drm_gem_object_lookup(dev, filp, args->handle); 307 if (gobj == NULL) { 308 sx_sunlock(&rdev->exclusive_lock); 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 sx_sunlock(&rdev->exclusive_lock); 317 r = radeon_gem_handle_lockup(robj->rdev, r); 318 return r; 319} 320 321int 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 338int 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 346int 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 379int 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 404int 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 422int 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); 440out: 441 drm_gem_object_unreference_unlocked(gobj); 442 return r; 443} 444 445int 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 } 547out: 548 radeon_bo_unreserve(rbo); 549 drm_gem_object_unreference_unlocked(gobj); 550 return r; 551} 552 553int 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 583int 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