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 void radeon_gem_object_free(struct drm_gem_object *gobj) 37 { 38 struct radeon_bo *robj = gem_to_radeon_bo(gobj); 39 40 if (robj) { 41 #ifdef DUMBBELL_WIP 42 if (robj->gem_base.import_attach) 43 drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg); 44 #endif /* DUMBBELL_WIP */ 45 radeon_bo_unref(&robj); 46 } 47 } 48 49 int radeon_gem_object_create(struct radeon_device *rdev, unsigned long size, 50 int alignment, int initial_domain, 51 u32 flags, bool kernel, 52 struct drm_gem_object **obj) 53 { 54 struct radeon_bo *robj; 55 unsigned long max_size; 56 int r; 57 58 *obj = NULL; 59 /* At least align on page size */ 60 if (alignment < PAGE_SIZE) { 61 alignment = PAGE_SIZE; 62 } 63 64 /* Maximum bo size is the unpinned gtt size since we use the gtt to 65 * handle vram to system pool migrations. 66 */ 67 max_size = rdev->mc.gtt_size - rdev->gart_pin_size; 68 if (size > max_size) { 69 DRM_DEBUG("Allocation size %ldMb bigger than %ldMb limit\n", 70 size >> 20, max_size >> 20); 71 return -ENOMEM; 72 } 73 74 retry: 75 r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain, 76 flags, NULL, &robj); 77 if (r) { 78 if (r != -ERESTARTSYS) { 79 if (initial_domain == RADEON_GEM_DOMAIN_VRAM) { 80 initial_domain |= RADEON_GEM_DOMAIN_GTT; 81 goto retry; 82 } 83 DRM_ERROR("Failed to allocate GEM object (%ld, %d, %u, %d)\n", 84 size, initial_domain, alignment, r); 85 } 86 return r; 87 } 88 *obj = &robj->gem_base; 89 robj->pid = curproc ? curproc->p_pid : 0; 90 91 mutex_lock(&rdev->gem.mutex); 92 list_add_tail(&robj->list, &rdev->gem.objects); 93 mutex_unlock(&rdev->gem.mutex); 94 95 return 0; 96 } 97 98 static int radeon_gem_set_domain(struct drm_gem_object *gobj, 99 uint32_t rdomain, uint32_t wdomain) 100 { 101 struct radeon_bo *robj; 102 uint32_t domain; 103 int r; 104 105 /* FIXME: reeimplement */ 106 robj = gem_to_radeon_bo(gobj); 107 /* work out where to validate the buffer to */ 108 domain = wdomain; 109 if (!domain) { 110 domain = rdomain; 111 } 112 if (!domain) { 113 /* Do nothings */ 114 printk(KERN_WARNING "Set domain without domain !\n"); 115 return 0; 116 } 117 if (domain == RADEON_GEM_DOMAIN_CPU) { 118 /* Asking for cpu access wait for object idle */ 119 r = radeon_bo_wait(robj, NULL, false); 120 if (r) { 121 printk(KERN_ERR "Failed to wait for object !\n"); 122 return r; 123 } 124 } 125 return 0; 126 } 127 128 int radeon_gem_init(struct radeon_device *rdev) 129 { 130 INIT_LIST_HEAD(&rdev->gem.objects); 131 return 0; 132 } 133 134 void radeon_gem_fini(struct radeon_device *rdev) 135 { 136 radeon_bo_force_delete(rdev); 137 } 138 139 /* 140 * Call from drm_gem_handle_create which appear in both new and open ioctl 141 * case. 142 */ 143 int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv) 144 { 145 struct radeon_bo *rbo = gem_to_radeon_bo(obj); 146 struct radeon_device *rdev = rbo->rdev; 147 struct radeon_fpriv *fpriv = file_priv->driver_priv; 148 struct radeon_vm *vm = &fpriv->vm; 149 struct radeon_bo_va *bo_va; 150 int r; 151 152 if ((rdev->family < CHIP_CAYMAN) || 153 (!rdev->accel_working)) { 154 return 0; 155 } 156 157 r = radeon_bo_reserve(rbo, false); 158 if (r) { 159 return r; 160 } 161 162 bo_va = radeon_vm_bo_find(vm, rbo); 163 if (!bo_va) { 164 bo_va = radeon_vm_bo_add(rdev, vm, rbo); 165 } else { 166 ++bo_va->ref_count; 167 } 168 radeon_bo_unreserve(rbo); 169 170 return 0; 171 } 172 173 void radeon_gem_object_close(struct drm_gem_object *obj, 174 struct drm_file *file_priv) 175 { 176 struct radeon_bo *rbo = gem_to_radeon_bo(obj); 177 struct radeon_device *rdev = rbo->rdev; 178 struct radeon_fpriv *fpriv = file_priv->driver_priv; 179 struct radeon_vm *vm = &fpriv->vm; 180 struct radeon_bo_va *bo_va; 181 int r; 182 183 if ((rdev->family < CHIP_CAYMAN) || 184 (!rdev->accel_working)) { 185 return; 186 } 187 188 r = radeon_bo_reserve(rbo, true); 189 if (r) { 190 dev_err(rdev->dev, "leaking bo va because " 191 "we fail to reserve bo (%d)\n", r); 192 return; 193 } 194 bo_va = radeon_vm_bo_find(vm, rbo); 195 if (bo_va) { 196 if (--bo_va->ref_count == 0) { 197 radeon_vm_bo_rmv(rdev, bo_va); 198 } 199 } 200 radeon_bo_unreserve(rbo); 201 } 202 203 static int radeon_gem_handle_lockup(struct radeon_device *rdev, int r) 204 { 205 if (r == -EDEADLK) { 206 r = radeon_gpu_reset(rdev); 207 if (!r) 208 r = -EAGAIN; 209 } 210 return r; 211 } 212 213 /* 214 * GEM ioctls. 215 */ 216 int radeon_gem_info_ioctl(struct drm_device *dev, void *data, 217 struct drm_file *filp) 218 { 219 struct radeon_device *rdev = dev->dev_private; 220 struct drm_radeon_gem_info *args = data; 221 struct ttm_mem_type_manager *man; 222 223 man = &rdev->mman.bdev.man[TTM_PL_VRAM]; 224 225 args->vram_size = rdev->mc.real_vram_size; 226 args->vram_visible = (u64)man->size << PAGE_SHIFT; 227 args->vram_visible -= rdev->vram_pin_size; 228 args->gart_size = rdev->mc.gtt_size; 229 args->gart_size -= rdev->gart_pin_size; 230 231 return 0; 232 } 233 234 int radeon_gem_pread_ioctl(struct drm_device *dev, void *data, 235 struct drm_file *filp) 236 { 237 /* TODO: implement */ 238 DRM_ERROR("unimplemented %s\n", __func__); 239 return -ENOSYS; 240 } 241 242 int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data, 243 struct drm_file *filp) 244 { 245 /* TODO: implement */ 246 DRM_ERROR("unimplemented %s\n", __func__); 247 return -ENOSYS; 248 } 249 250 int radeon_gem_create_ioctl(struct drm_device *dev, void *data, 251 struct drm_file *filp) 252 { 253 struct radeon_device *rdev = dev->dev_private; 254 struct drm_radeon_gem_create *args = data; 255 struct drm_gem_object *gobj; 256 uint32_t handle; 257 int r; 258 259 lockmgr(&rdev->exclusive_lock, LK_SHARED); 260 /* create a gem object to contain this object in */ 261 args->size = roundup(args->size, PAGE_SIZE); 262 r = radeon_gem_object_create(rdev, args->size, args->alignment, 263 args->initial_domain, args->flags, 264 false, &gobj); 265 if (r) { 266 if (r == -ERESTARTSYS) 267 r = -EINTR; 268 lockmgr(&rdev->exclusive_lock, LK_RELEASE); 269 r = radeon_gem_handle_lockup(rdev, r); 270 return r; 271 } 272 handle = 0; 273 r = drm_gem_handle_create(filp, gobj, &handle); 274 /* drop reference from allocate - handle holds it now */ 275 drm_gem_object_unreference_unlocked(gobj); 276 if (r) { 277 lockmgr(&rdev->exclusive_lock, LK_RELEASE); 278 r = radeon_gem_handle_lockup(rdev, r); 279 return r; 280 } 281 args->handle = handle; 282 lockmgr(&rdev->exclusive_lock, LK_RELEASE); 283 return 0; 284 } 285 286 int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data, 287 struct drm_file *filp) 288 { 289 /* transition the BO to a domain - 290 * just validate the BO into a certain domain */ 291 struct radeon_device *rdev = dev->dev_private; 292 struct drm_radeon_gem_set_domain *args = data; 293 struct drm_gem_object *gobj; 294 struct radeon_bo *robj; 295 int r; 296 297 /* for now if someone requests domain CPU - 298 * just make sure the buffer is finished with */ 299 lockmgr(&rdev->exclusive_lock, LK_SHARED); 300 301 /* just do a BO wait for now */ 302 gobj = drm_gem_object_lookup(filp, args->handle); 303 if (gobj == NULL) { 304 lockmgr(&rdev->exclusive_lock, LK_RELEASE); 305 return -ENOENT; 306 } 307 robj = gem_to_radeon_bo(gobj); 308 309 r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain); 310 311 drm_gem_object_unreference_unlocked(gobj); 312 lockmgr(&rdev->exclusive_lock, LK_RELEASE); 313 r = radeon_gem_handle_lockup(robj->rdev, r); 314 return r; 315 } 316 317 int radeon_mode_dumb_mmap(struct drm_file *filp, 318 struct drm_device *dev, 319 uint32_t handle, uint64_t *offset_p) 320 { 321 struct drm_gem_object *gobj; 322 struct radeon_bo *robj; 323 324 gobj = drm_gem_object_lookup(filp, handle); 325 if (gobj == NULL) { 326 return -ENOENT; 327 } 328 robj = gem_to_radeon_bo(gobj); 329 *offset_p = radeon_bo_mmap_offset(robj); 330 drm_gem_object_unreference_unlocked(gobj); 331 return 0; 332 } 333 334 int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data, 335 struct drm_file *filp) 336 { 337 struct drm_radeon_gem_mmap *args = data; 338 339 return radeon_mode_dumb_mmap(filp, dev, args->handle, (uint64_t *)&args->addr_ptr); 340 } 341 342 int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, 343 struct drm_file *filp) 344 { 345 struct radeon_device *rdev = dev->dev_private; 346 struct drm_radeon_gem_busy *args = data; 347 struct drm_gem_object *gobj; 348 struct radeon_bo *robj; 349 int r; 350 uint32_t cur_placement = 0; 351 352 gobj = drm_gem_object_lookup(filp, args->handle); 353 if (gobj == NULL) { 354 return -ENOENT; 355 } 356 robj = gem_to_radeon_bo(gobj); 357 r = radeon_bo_wait(robj, &cur_placement, true); 358 args->domain = radeon_mem_type_to_domain(cur_placement); 359 drm_gem_object_unreference_unlocked(gobj); 360 r = radeon_gem_handle_lockup(rdev, r); 361 return r; 362 } 363 364 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data, 365 struct drm_file *filp) 366 { 367 struct radeon_device *rdev = dev->dev_private; 368 struct drm_radeon_gem_wait_idle *args = data; 369 struct drm_gem_object *gobj; 370 struct radeon_bo *robj; 371 int r; 372 uint32_t cur_placement = 0; 373 374 gobj = drm_gem_object_lookup(filp, args->handle); 375 if (gobj == NULL) { 376 return -ENOENT; 377 } 378 robj = gem_to_radeon_bo(gobj); 379 r = radeon_bo_wait(robj, &cur_placement, false); 380 /* Flush HDP cache via MMIO if necessary */ 381 if (rdev->asic->mmio_hdp_flush && 382 radeon_mem_type_to_domain(cur_placement) == RADEON_GEM_DOMAIN_VRAM) 383 robj->rdev->asic->mmio_hdp_flush(rdev); 384 drm_gem_object_unreference_unlocked(gobj); 385 if (r == -ERESTARTSYS) 386 r = -EINTR; 387 r = radeon_gem_handle_lockup(rdev, r); 388 return r; 389 } 390 391 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data, 392 struct drm_file *filp) 393 { 394 struct drm_radeon_gem_set_tiling *args = data; 395 struct drm_gem_object *gobj; 396 struct radeon_bo *robj; 397 int r = 0; 398 399 DRM_DEBUG("%d \n", args->handle); 400 gobj = drm_gem_object_lookup(filp, args->handle); 401 if (gobj == NULL) 402 return -ENOENT; 403 robj = gem_to_radeon_bo(gobj); 404 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch); 405 drm_gem_object_unreference_unlocked(gobj); 406 return r; 407 } 408 409 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data, 410 struct drm_file *filp) 411 { 412 struct drm_radeon_gem_get_tiling *args = data; 413 struct drm_gem_object *gobj; 414 struct radeon_bo *rbo; 415 int r = 0; 416 417 DRM_DEBUG("\n"); 418 gobj = drm_gem_object_lookup(filp, args->handle); 419 if (gobj == NULL) 420 return -ENOENT; 421 rbo = gem_to_radeon_bo(gobj); 422 r = radeon_bo_reserve(rbo, false); 423 if (unlikely(r != 0)) 424 goto out; 425 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch); 426 radeon_bo_unreserve(rbo); 427 out: 428 drm_gem_object_unreference_unlocked(gobj); 429 return r; 430 } 431 432 int radeon_gem_va_ioctl(struct drm_device *dev, void *data, 433 struct drm_file *filp) 434 { 435 struct drm_radeon_gem_va *args = data; 436 struct drm_gem_object *gobj; 437 struct radeon_device *rdev = dev->dev_private; 438 struct radeon_fpriv *fpriv = filp->driver_priv; 439 struct radeon_bo *rbo; 440 struct radeon_bo_va *bo_va; 441 u32 invalid_flags; 442 int r = 0; 443 444 if (!rdev->vm_manager.enabled) { 445 args->operation = RADEON_VA_RESULT_ERROR; 446 return -ENOTTY; 447 } 448 449 /* !! DONT REMOVE !! 450 * We don't support vm_id yet, to be sure we don't have have broken 451 * userspace, reject anyone trying to use non 0 value thus moving 452 * forward we can use those fields without breaking existant userspace 453 */ 454 if (args->vm_id) { 455 args->operation = RADEON_VA_RESULT_ERROR; 456 return -EINVAL; 457 } 458 459 if (args->offset < RADEON_VA_RESERVED_SIZE) { 460 dev_err(&dev->pdev->dev, 461 "offset 0x%lX is in reserved area 0x%X\n", 462 (unsigned long)args->offset, 463 RADEON_VA_RESERVED_SIZE); 464 args->operation = RADEON_VA_RESULT_ERROR; 465 return -EINVAL; 466 } 467 468 /* don't remove, we need to enforce userspace to set the snooped flag 469 * otherwise we will endup with broken userspace and we won't be able 470 * to enable this feature without adding new interface 471 */ 472 invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM; 473 if ((args->flags & invalid_flags)) { 474 dev_err(&dev->pdev->dev, "invalid flags 0x%08X vs 0x%08X\n", 475 args->flags, invalid_flags); 476 args->operation = RADEON_VA_RESULT_ERROR; 477 return -EINVAL; 478 } 479 480 switch (args->operation) { 481 case RADEON_VA_MAP: 482 case RADEON_VA_UNMAP: 483 break; 484 default: 485 dev_err(&dev->pdev->dev, "unsupported operation %d\n", 486 args->operation); 487 args->operation = RADEON_VA_RESULT_ERROR; 488 return -EINVAL; 489 } 490 491 gobj = drm_gem_object_lookup(filp, args->handle); 492 if (gobj == NULL) { 493 args->operation = RADEON_VA_RESULT_ERROR; 494 return -ENOENT; 495 } 496 rbo = gem_to_radeon_bo(gobj); 497 r = radeon_bo_reserve(rbo, false); 498 if (r) { 499 args->operation = RADEON_VA_RESULT_ERROR; 500 drm_gem_object_unreference_unlocked(gobj); 501 return r; 502 } 503 bo_va = radeon_vm_bo_find(&fpriv->vm, rbo); 504 if (!bo_va) { 505 args->operation = RADEON_VA_RESULT_ERROR; 506 radeon_bo_unreserve(rbo); 507 drm_gem_object_unreference_unlocked(gobj); 508 return -ENOENT; 509 } 510 511 switch (args->operation) { 512 case RADEON_VA_MAP: 513 if (bo_va->soffset) { 514 args->operation = RADEON_VA_RESULT_VA_EXIST; 515 args->offset = bo_va->soffset; 516 radeon_bo_unreserve(rbo); 517 goto out; 518 } 519 r = radeon_vm_bo_set_addr(rdev, bo_va, args->offset, args->flags); 520 break; 521 case RADEON_VA_UNMAP: 522 r = radeon_vm_bo_set_addr(rdev, bo_va, 0, 0); 523 break; 524 default: 525 break; 526 } 527 args->operation = RADEON_VA_RESULT_OK; 528 if (r) { 529 args->operation = RADEON_VA_RESULT_ERROR; 530 } 531 out: 532 drm_gem_object_unreference_unlocked(gobj); 533 return r; 534 } 535 536 int radeon_gem_op_ioctl(struct drm_device *dev, void *data, 537 struct drm_file *filp) 538 { 539 struct drm_radeon_gem_op *args = data; 540 struct drm_gem_object *gobj; 541 struct radeon_bo *robj; 542 int r; 543 544 gobj = drm_gem_object_lookup(filp, args->handle); 545 if (gobj == NULL) { 546 return -ENOENT; 547 } 548 robj = gem_to_radeon_bo(gobj); 549 r = radeon_bo_reserve(robj, false); 550 if (unlikely(r)) 551 goto out; 552 553 switch (args->op) { 554 case RADEON_GEM_OP_GET_INITIAL_DOMAIN: 555 args->value = robj->initial_domain; 556 break; 557 case RADEON_GEM_OP_SET_INITIAL_DOMAIN: 558 robj->initial_domain = args->value & (RADEON_GEM_DOMAIN_VRAM | 559 RADEON_GEM_DOMAIN_GTT | 560 RADEON_GEM_DOMAIN_CPU); 561 break; 562 default: 563 r = -EINVAL; 564 } 565 566 radeon_bo_unreserve(robj); 567 out: 568 drm_gem_object_unreference_unlocked(gobj); 569 return r; 570 } 571 572 int radeon_mode_dumb_create(struct drm_file *file_priv, 573 struct drm_device *dev, 574 struct drm_mode_create_dumb *args) 575 { 576 struct radeon_device *rdev = dev->dev_private; 577 struct drm_gem_object *gobj; 578 uint32_t handle; 579 int r; 580 581 args->pitch = radeon_align_pitch(rdev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8); 582 args->size = args->pitch * args->height; 583 args->size = ALIGN(args->size, PAGE_SIZE); 584 585 r = radeon_gem_object_create(rdev, args->size, 0, 586 RADEON_GEM_DOMAIN_VRAM, 0, 587 false, &gobj); 588 if (r) 589 return -ENOMEM; 590 591 r = drm_gem_handle_create(file_priv, gobj, &handle); 592 /* drop reference from allocate - handle holds it now */ 593 drm_gem_object_unreference_unlocked(gobj); 594 if (r) { 595 return r; 596 } 597 args->handle = handle; 598 return 0; 599 } 600 601 #if defined(CONFIG_DEBUG_FS) 602 static int radeon_debugfs_gem_info(struct seq_file *m, void *data) 603 { 604 struct drm_info_node *node = (struct drm_info_node *)m->private; 605 struct drm_device *dev = node->minor->dev; 606 struct radeon_device *rdev = dev->dev_private; 607 struct radeon_bo *rbo; 608 unsigned i = 0; 609 610 mutex_lock(&rdev->gem.mutex); 611 list_for_each_entry(rbo, &rdev->gem.objects, list) { 612 unsigned domain; 613 const char *placement; 614 615 domain = radeon_mem_type_to_domain(rbo->tbo.mem.mem_type); 616 switch (domain) { 617 case RADEON_GEM_DOMAIN_VRAM: 618 placement = "VRAM"; 619 break; 620 case RADEON_GEM_DOMAIN_GTT: 621 placement = " GTT"; 622 break; 623 case RADEON_GEM_DOMAIN_CPU: 624 default: 625 placement = " CPU"; 626 break; 627 } 628 seq_printf(m, "bo[0x%08x] %8ldkB %8ldMB %s pid %8ld\n", 629 i, radeon_bo_size(rbo) >> 10, radeon_bo_size(rbo) >> 20, 630 placement, (unsigned long)rbo->pid); 631 i++; 632 } 633 mutex_unlock(&rdev->gem.mutex); 634 return 0; 635 } 636 637 static struct drm_info_list radeon_debugfs_gem_list[] = { 638 {"radeon_gem_info", &radeon_debugfs_gem_info, 0, NULL}, 639 }; 640 #endif 641 642 int radeon_gem_debugfs_init(struct radeon_device *rdev) 643 { 644 #if defined(CONFIG_DEBUG_FS) 645 return radeon_debugfs_add_files(rdev, radeon_debugfs_gem_list, 1); 646 #endif 647 return 0; 648 } 649