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 #include <drm/drmP.h> 29 #include <drm/radeon_drm.h> 30 #include "radeon.h" 31 32 void radeon_gem_object_free(struct drm_gem_object *gobj) 33 { 34 struct radeon_bo *robj = gem_to_radeon_bo(gobj); 35 36 if (robj) { 37 #ifndef __NetBSD__ /* XXX drm prime */ 38 if (robj->gem_base.import_attach) 39 drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg); 40 #endif 41 radeon_bo_unref(&robj); 42 } 43 } 44 45 int radeon_gem_object_create(struct radeon_device *rdev, int size, 46 int alignment, int initial_domain, 47 bool discardable, bool kernel, 48 struct drm_gem_object **obj) 49 { 50 struct radeon_bo *robj; 51 unsigned long max_size; 52 int r; 53 54 *obj = NULL; 55 /* At least align on page size */ 56 if (alignment < PAGE_SIZE) { 57 alignment = PAGE_SIZE; 58 } 59 60 /* maximun bo size is the minimun btw visible vram and gtt size */ 61 max_size = min(rdev->mc.visible_vram_size, rdev->mc.gtt_size); 62 if (size > max_size) { 63 printk(KERN_WARNING "%s:%d alloc size %dMb bigger than %ldMb limit\n", 64 __func__, __LINE__, size >> 20, max_size >> 20); 65 return -ENOMEM; 66 } 67 68 retry: 69 r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain, NULL, &robj); 70 if (r) { 71 if (r != -ERESTARTSYS) { 72 if (initial_domain == RADEON_GEM_DOMAIN_VRAM) { 73 initial_domain |= RADEON_GEM_DOMAIN_GTT; 74 goto retry; 75 } 76 DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n", 77 size, initial_domain, alignment, r); 78 } 79 return r; 80 } 81 *obj = &robj->gem_base; 82 #ifndef __NetBSD__ 83 robj->pid = task_pid_nr(current); 84 #endif 85 86 mutex_lock(&rdev->gem.mutex); 87 list_add_tail(&robj->list, &rdev->gem.objects); 88 mutex_unlock(&rdev->gem.mutex); 89 90 return 0; 91 } 92 93 static int radeon_gem_set_domain(struct drm_gem_object *gobj, 94 uint32_t rdomain, uint32_t wdomain) 95 { 96 struct radeon_bo *robj; 97 uint32_t domain; 98 int r; 99 100 /* FIXME: reeimplement */ 101 robj = gem_to_radeon_bo(gobj); 102 /* work out where to validate the buffer to */ 103 domain = wdomain; 104 if (!domain) { 105 domain = rdomain; 106 } 107 if (!domain) { 108 /* Do nothings */ 109 printk(KERN_WARNING "Set domain without domain !\n"); 110 return 0; 111 } 112 if (domain == RADEON_GEM_DOMAIN_CPU) { 113 /* Asking for cpu access wait for object idle */ 114 r = radeon_bo_wait(robj, NULL, false); 115 if (r) { 116 printk(KERN_ERR "Failed to wait for object !\n"); 117 return r; 118 } 119 } 120 return 0; 121 } 122 123 int radeon_gem_init(struct radeon_device *rdev) 124 { 125 INIT_LIST_HEAD(&rdev->gem.objects); 126 return 0; 127 } 128 129 void radeon_gem_fini(struct radeon_device *rdev) 130 { 131 radeon_bo_force_delete(rdev); 132 } 133 134 /* 135 * Call from drm_gem_handle_create which appear in both new and open ioctl 136 * case. 137 */ 138 int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv) 139 { 140 struct radeon_bo *rbo = gem_to_radeon_bo(obj); 141 struct radeon_device *rdev = rbo->rdev; 142 struct radeon_fpriv *fpriv = file_priv->driver_priv; 143 struct radeon_vm *vm = &fpriv->vm; 144 struct radeon_bo_va *bo_va; 145 int r; 146 147 if (rdev->family < CHIP_CAYMAN) { 148 return 0; 149 } 150 151 r = radeon_bo_reserve(rbo, false); 152 if (r) { 153 return r; 154 } 155 156 bo_va = radeon_vm_bo_find(vm, rbo); 157 if (!bo_va) { 158 bo_va = radeon_vm_bo_add(rdev, vm, rbo); 159 } else { 160 ++bo_va->ref_count; 161 } 162 radeon_bo_unreserve(rbo); 163 164 return 0; 165 } 166 167 void radeon_gem_object_close(struct drm_gem_object *obj, 168 struct drm_file *file_priv) 169 { 170 struct radeon_bo *rbo = gem_to_radeon_bo(obj); 171 struct radeon_device *rdev = rbo->rdev; 172 struct radeon_fpriv *fpriv = file_priv->driver_priv; 173 struct radeon_vm *vm = &fpriv->vm; 174 struct radeon_bo_va *bo_va; 175 int r; 176 177 if (rdev->family < CHIP_CAYMAN) { 178 return; 179 } 180 181 r = radeon_bo_reserve(rbo, true); 182 if (r) { 183 dev_err(rdev->dev, "leaking bo va because " 184 "we fail to reserve bo (%d)\n", r); 185 return; 186 } 187 bo_va = radeon_vm_bo_find(vm, rbo); 188 if (bo_va) { 189 if (--bo_va->ref_count == 0) { 190 radeon_vm_bo_rmv(rdev, bo_va); 191 } 192 } 193 radeon_bo_unreserve(rbo); 194 } 195 196 static int radeon_gem_handle_lockup(struct radeon_device *rdev, int r) 197 { 198 if (r == -EDEADLK) { 199 r = radeon_gpu_reset(rdev); 200 if (!r) 201 r = -EAGAIN; 202 } 203 return r; 204 } 205 206 /* 207 * GEM ioctls. 208 */ 209 int radeon_gem_info_ioctl(struct drm_device *dev, void *data, 210 struct drm_file *filp) 211 { 212 struct radeon_device *rdev = dev->dev_private; 213 struct drm_radeon_gem_info *args = data; 214 struct ttm_mem_type_manager *man; 215 unsigned i; 216 217 man = &rdev->mman.bdev.man[TTM_PL_VRAM]; 218 219 args->vram_size = rdev->mc.real_vram_size; 220 args->vram_visible = (u64)man->size << PAGE_SHIFT; 221 if (rdev->stollen_vga_memory) 222 args->vram_visible -= radeon_bo_size(rdev->stollen_vga_memory); 223 args->vram_visible -= radeon_fbdev_total_size(rdev); 224 args->gart_size = rdev->mc.gtt_size - 4096 - RADEON_IB_POOL_SIZE*64*1024; 225 for(i = 0; i < RADEON_NUM_RINGS; ++i) 226 args->gart_size -= rdev->ring[i].ring_size; 227 return 0; 228 } 229 230 int radeon_gem_pread_ioctl(struct drm_device *dev, void *data, 231 struct drm_file *filp) 232 { 233 /* TODO: implement */ 234 DRM_ERROR("unimplemented %s\n", __func__); 235 return -ENOSYS; 236 } 237 238 int radeon_gem_pwrite_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_create_ioctl(struct drm_device *dev, void *data, 247 struct drm_file *filp) 248 { 249 struct radeon_device *rdev = dev->dev_private; 250 struct drm_radeon_gem_create *args = data; 251 struct drm_gem_object *gobj; 252 uint32_t handle; 253 int r; 254 255 down_read(&rdev->exclusive_lock); 256 /* create a gem object to contain this object in */ 257 args->size = roundup(args->size, PAGE_SIZE); 258 r = radeon_gem_object_create(rdev, args->size, args->alignment, 259 args->initial_domain, false, 260 false, &gobj); 261 if (r) { 262 up_read(&rdev->exclusive_lock); 263 r = radeon_gem_handle_lockup(rdev, r); 264 return r; 265 } 266 r = drm_gem_handle_create(filp, gobj, &handle); 267 /* drop reference from allocate - handle holds it now */ 268 drm_gem_object_unreference_unlocked(gobj); 269 if (r) { 270 up_read(&rdev->exclusive_lock); 271 r = radeon_gem_handle_lockup(rdev, r); 272 return r; 273 } 274 args->handle = handle; 275 up_read(&rdev->exclusive_lock); 276 return 0; 277 } 278 279 int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data, 280 struct drm_file *filp) 281 { 282 /* transition the BO to a domain - 283 * just validate the BO into a certain domain */ 284 struct radeon_device *rdev = dev->dev_private; 285 struct drm_radeon_gem_set_domain *args = data; 286 struct drm_gem_object *gobj; 287 struct radeon_bo *robj; 288 int r; 289 290 /* for now if someone requests domain CPU - 291 * just make sure the buffer is finished with */ 292 down_read(&rdev->exclusive_lock); 293 294 /* just do a BO wait for now */ 295 gobj = drm_gem_object_lookup(dev, filp, args->handle); 296 if (gobj == NULL) { 297 up_read(&rdev->exclusive_lock); 298 return -ENOENT; 299 } 300 robj = gem_to_radeon_bo(gobj); 301 302 r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain); 303 304 drm_gem_object_unreference_unlocked(gobj); 305 up_read(&rdev->exclusive_lock); 306 r = radeon_gem_handle_lockup(robj->rdev, r); 307 return r; 308 } 309 310 int radeon_mode_dumb_mmap(struct drm_file *filp, 311 struct drm_device *dev, 312 uint32_t handle, uint64_t *offset_p) 313 { 314 struct drm_gem_object *gobj; 315 struct radeon_bo *robj; 316 317 gobj = drm_gem_object_lookup(dev, filp, handle); 318 if (gobj == NULL) { 319 return -ENOENT; 320 } 321 robj = gem_to_radeon_bo(gobj); 322 *offset_p = radeon_bo_mmap_offset(robj); 323 drm_gem_object_unreference_unlocked(gobj); 324 return 0; 325 } 326 327 int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data, 328 struct drm_file *filp) 329 { 330 struct drm_radeon_gem_mmap *args = data; 331 332 return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr); 333 } 334 335 int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, 336 struct drm_file *filp) 337 { 338 struct radeon_device *rdev = dev->dev_private; 339 struct drm_radeon_gem_busy *args = data; 340 struct drm_gem_object *gobj; 341 struct radeon_bo *robj; 342 int r; 343 uint32_t cur_placement = 0; 344 345 gobj = drm_gem_object_lookup(dev, filp, args->handle); 346 if (gobj == NULL) { 347 return -ENOENT; 348 } 349 robj = gem_to_radeon_bo(gobj); 350 r = radeon_bo_wait(robj, &cur_placement, true); 351 args->domain = radeon_mem_type_to_domain(cur_placement); 352 drm_gem_object_unreference_unlocked(gobj); 353 r = radeon_gem_handle_lockup(rdev, r); 354 return r; 355 } 356 357 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data, 358 struct drm_file *filp) 359 { 360 struct radeon_device *rdev = dev->dev_private; 361 struct drm_radeon_gem_wait_idle *args = data; 362 struct drm_gem_object *gobj; 363 struct radeon_bo *robj; 364 int r; 365 366 gobj = drm_gem_object_lookup(dev, filp, args->handle); 367 if (gobj == NULL) { 368 return -ENOENT; 369 } 370 robj = gem_to_radeon_bo(gobj); 371 r = radeon_bo_wait(robj, NULL, false); 372 /* callback hw specific functions if any */ 373 if (rdev->asic->ioctl_wait_idle) 374 robj->rdev->asic->ioctl_wait_idle(rdev, robj); 375 drm_gem_object_unreference_unlocked(gobj); 376 r = radeon_gem_handle_lockup(rdev, r); 377 return r; 378 } 379 380 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data, 381 struct drm_file *filp) 382 { 383 struct drm_radeon_gem_set_tiling *args = data; 384 struct drm_gem_object *gobj; 385 struct radeon_bo *robj; 386 int r = 0; 387 388 DRM_DEBUG("%d \n", args->handle); 389 gobj = drm_gem_object_lookup(dev, filp, args->handle); 390 if (gobj == NULL) 391 return -ENOENT; 392 robj = gem_to_radeon_bo(gobj); 393 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch); 394 drm_gem_object_unreference_unlocked(gobj); 395 return r; 396 } 397 398 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data, 399 struct drm_file *filp) 400 { 401 struct drm_radeon_gem_get_tiling *args = data; 402 struct drm_gem_object *gobj; 403 struct radeon_bo *rbo; 404 int r = 0; 405 406 DRM_DEBUG("\n"); 407 gobj = drm_gem_object_lookup(dev, filp, args->handle); 408 if (gobj == NULL) 409 return -ENOENT; 410 rbo = gem_to_radeon_bo(gobj); 411 r = radeon_bo_reserve(rbo, false); 412 if (unlikely(r != 0)) 413 goto out; 414 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch); 415 radeon_bo_unreserve(rbo); 416 out: 417 drm_gem_object_unreference_unlocked(gobj); 418 return r; 419 } 420 421 int radeon_gem_va_ioctl(struct drm_device *dev, void *data, 422 struct drm_file *filp) 423 { 424 struct drm_radeon_gem_va *args = data; 425 struct drm_gem_object *gobj; 426 struct radeon_device *rdev = dev->dev_private; 427 struct radeon_fpriv *fpriv = filp->driver_priv; 428 struct radeon_bo *rbo; 429 struct radeon_bo_va *bo_va; 430 u32 invalid_flags; 431 int r = 0; 432 433 if (!rdev->vm_manager.enabled) { 434 args->operation = RADEON_VA_RESULT_ERROR; 435 return -ENOTTY; 436 } 437 438 /* !! DONT REMOVE !! 439 * We don't support vm_id yet, to be sure we don't have have broken 440 * userspace, reject anyone trying to use non 0 value thus moving 441 * forward we can use those fields without breaking existant userspace 442 */ 443 if (args->vm_id) { 444 args->operation = RADEON_VA_RESULT_ERROR; 445 return -EINVAL; 446 } 447 448 if (args->offset < RADEON_VA_RESERVED_SIZE) { 449 dev_err(dev->dev, 450 "offset 0x%lX is in reserved area 0x%X\n", 451 (unsigned long)args->offset, 452 RADEON_VA_RESERVED_SIZE); 453 args->operation = RADEON_VA_RESULT_ERROR; 454 return -EINVAL; 455 } 456 457 /* don't remove, we need to enforce userspace to set the snooped flag 458 * otherwise we will endup with broken userspace and we won't be able 459 * to enable this feature without adding new interface 460 */ 461 invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM; 462 if ((args->flags & invalid_flags)) { 463 dev_err(dev->dev, "invalid flags 0x%08X vs 0x%08X\n", 464 args->flags, invalid_flags); 465 args->operation = RADEON_VA_RESULT_ERROR; 466 return -EINVAL; 467 } 468 if (!(args->flags & RADEON_VM_PAGE_SNOOPED)) { 469 dev_err(dev->dev, "only supported snooped mapping for now\n"); 470 args->operation = RADEON_VA_RESULT_ERROR; 471 return -EINVAL; 472 } 473 474 switch (args->operation) { 475 case RADEON_VA_MAP: 476 case RADEON_VA_UNMAP: 477 break; 478 default: 479 dev_err(dev->dev, "unsupported operation %d\n", 480 args->operation); 481 args->operation = RADEON_VA_RESULT_ERROR; 482 return -EINVAL; 483 } 484 485 gobj = drm_gem_object_lookup(dev, filp, args->handle); 486 if (gobj == NULL) { 487 args->operation = RADEON_VA_RESULT_ERROR; 488 return -ENOENT; 489 } 490 rbo = gem_to_radeon_bo(gobj); 491 r = radeon_bo_reserve(rbo, false); 492 if (r) { 493 args->operation = RADEON_VA_RESULT_ERROR; 494 drm_gem_object_unreference_unlocked(gobj); 495 return r; 496 } 497 bo_va = radeon_vm_bo_find(&fpriv->vm, rbo); 498 if (!bo_va) { 499 args->operation = RADEON_VA_RESULT_ERROR; 500 drm_gem_object_unreference_unlocked(gobj); 501 return -ENOENT; 502 } 503 504 switch (args->operation) { 505 case RADEON_VA_MAP: 506 if (bo_va->soffset) { 507 args->operation = RADEON_VA_RESULT_VA_EXIST; 508 args->offset = bo_va->soffset; 509 goto out; 510 } 511 r = radeon_vm_bo_set_addr(rdev, bo_va, args->offset, args->flags); 512 break; 513 case RADEON_VA_UNMAP: 514 r = radeon_vm_bo_set_addr(rdev, bo_va, 0, 0); 515 break; 516 default: 517 break; 518 } 519 args->operation = RADEON_VA_RESULT_OK; 520 if (r) { 521 args->operation = RADEON_VA_RESULT_ERROR; 522 } 523 out: 524 radeon_bo_unreserve(rbo); 525 drm_gem_object_unreference_unlocked(gobj); 526 return r; 527 } 528 529 int radeon_gem_op_ioctl(struct drm_device *dev, void *data, 530 struct drm_file *filp) 531 { 532 struct drm_radeon_gem_op *args = data; 533 struct drm_gem_object *gobj; 534 struct radeon_bo *robj; 535 int r; 536 537 gobj = drm_gem_object_lookup(dev, filp, args->handle); 538 if (gobj == NULL) { 539 return -ENOENT; 540 } 541 robj = gem_to_radeon_bo(gobj); 542 r = radeon_bo_reserve(robj, false); 543 if (unlikely(r)) 544 goto out; 545 546 switch (args->op) { 547 case RADEON_GEM_OP_GET_INITIAL_DOMAIN: 548 args->value = robj->initial_domain; 549 break; 550 case RADEON_GEM_OP_SET_INITIAL_DOMAIN: 551 robj->initial_domain = args->value & (RADEON_GEM_DOMAIN_VRAM | 552 RADEON_GEM_DOMAIN_GTT | 553 RADEON_GEM_DOMAIN_CPU); 554 break; 555 default: 556 r = -EINVAL; 557 } 558 559 radeon_bo_unreserve(robj); 560 out: 561 drm_gem_object_unreference_unlocked(gobj); 562 return r; 563 } 564 565 int radeon_mode_dumb_create(struct drm_file *file_priv, 566 struct drm_device *dev, 567 struct drm_mode_create_dumb *args) 568 { 569 struct radeon_device *rdev = dev->dev_private; 570 struct drm_gem_object *gobj; 571 uint32_t handle; 572 int r; 573 574 args->pitch = radeon_align_pitch(rdev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8); 575 args->size = args->pitch * args->height; 576 #ifdef __NetBSD__ /* XXX ALIGN means something else. */ 577 args->size = round_up(args->size, PAGE_SIZE); 578 #else 579 args->size = ALIGN(args->size, PAGE_SIZE); 580 #endif 581 582 r = radeon_gem_object_create(rdev, args->size, 0, 583 RADEON_GEM_DOMAIN_VRAM, 584 false, ttm_bo_type_device, 585 &gobj); 586 if (r) 587 return -ENOMEM; 588 589 r = drm_gem_handle_create(file_priv, gobj, &handle); 590 /* drop reference from allocate - handle holds it now */ 591 drm_gem_object_unreference_unlocked(gobj); 592 if (r) { 593 return r; 594 } 595 args->handle = handle; 596 return 0; 597 } 598 599 #if defined(CONFIG_DEBUG_FS) 600 static int radeon_debugfs_gem_info(struct seq_file *m, void *data) 601 { 602 struct drm_info_node *node = (struct drm_info_node *)m->private; 603 struct drm_device *dev = node->minor->dev; 604 struct radeon_device *rdev = dev->dev_private; 605 struct radeon_bo *rbo; 606 unsigned i = 0; 607 608 mutex_lock(&rdev->gem.mutex); 609 list_for_each_entry(rbo, &rdev->gem.objects, list) { 610 unsigned domain; 611 const char *placement; 612 613 domain = radeon_mem_type_to_domain(rbo->tbo.mem.mem_type); 614 switch (domain) { 615 case RADEON_GEM_DOMAIN_VRAM: 616 placement = "VRAM"; 617 break; 618 case RADEON_GEM_DOMAIN_GTT: 619 placement = " GTT"; 620 break; 621 case RADEON_GEM_DOMAIN_CPU: 622 default: 623 placement = " CPU"; 624 break; 625 } 626 seq_printf(m, "bo[0x%08x] %8ldkB %8ldMB %s pid %8ld\n", 627 i, radeon_bo_size(rbo) >> 10, radeon_bo_size(rbo) >> 20, 628 placement, (unsigned long)rbo->pid); 629 i++; 630 } 631 mutex_unlock(&rdev->gem.mutex); 632 return 0; 633 } 634 635 static struct drm_info_list radeon_debugfs_gem_list[] = { 636 {"radeon_gem_info", &radeon_debugfs_gem_info, 0, NULL}, 637 }; 638 #endif 639 640 int radeon_gem_debugfs_init(struct radeon_device *rdev) 641 { 642 #if defined(CONFIG_DEBUG_FS) 643 return radeon_debugfs_add_files(rdev, radeon_debugfs_gem_list, 1); 644 #endif 645 return 0; 646 } 647