1 /* 2 * Copyright (C) 2008 Ben Skeggs. 3 * All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining 6 * a copy of this software and associated documentation files (the 7 * "Software"), to deal in the Software without restriction, including 8 * without limitation the rights to use, copy, modify, merge, publish, 9 * distribute, sublicense, and/or sell copies of the Software, and to 10 * permit persons to whom the Software is furnished to do so, subject to 11 * the following conditions: 12 * 13 * The above copyright notice and this permission notice (including the 14 * next paragraph) shall be included in all copies or substantial 15 * portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 * 25 */ 26 27 #include "nouveau_drm.h" 28 #include "nouveau_dma.h" 29 #include "nouveau_fence.h" 30 #include "nouveau_abi16.h" 31 32 #include "nouveau_ttm.h" 33 #include "nouveau_gem.h" 34 35 void 36 nouveau_gem_object_del(struct drm_gem_object *gem) 37 { 38 struct nouveau_bo *nvbo = nouveau_gem_object(gem); 39 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev); 40 struct ttm_buffer_object *bo = &nvbo->bo; 41 struct device *dev = drm->dev->dev; 42 int ret; 43 44 ret = pm_runtime_get_sync(dev); 45 if (WARN_ON(ret < 0 && ret != -EACCES)) 46 return; 47 48 if (gem->import_attach) 49 drm_prime_gem_destroy(gem, nvbo->bo.sg); 50 51 drm_gem_object_release(gem); 52 53 /* reset filp so nouveau_bo_del_ttm() can test for it */ 54 gem->filp = NULL; 55 ttm_bo_unref(&bo); 56 57 pm_runtime_mark_last_busy(dev); 58 pm_runtime_put_autosuspend(dev); 59 } 60 61 int 62 nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv) 63 { 64 struct nouveau_cli *cli = nouveau_cli(file_priv); 65 struct nouveau_bo *nvbo = nouveau_gem_object(gem); 66 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev); 67 struct nouveau_vma *vma; 68 struct device *dev = drm->dev->dev; 69 int ret; 70 71 if (!cli->vm) 72 return 0; 73 74 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, NULL); 75 if (ret) 76 return ret; 77 78 vma = nouveau_bo_vma_find(nvbo, cli->vm); 79 if (!vma) { 80 vma = kzalloc(sizeof(*vma), GFP_KERNEL); 81 if (!vma) { 82 ret = -ENOMEM; 83 goto out; 84 } 85 86 ret = pm_runtime_get_sync(dev); 87 if (ret < 0 && ret != -EACCES) 88 goto out; 89 90 ret = nouveau_bo_vma_add(nvbo, cli->vm, vma); 91 if (ret) 92 kfree(vma); 93 94 pm_runtime_mark_last_busy(dev); 95 pm_runtime_put_autosuspend(dev); 96 } else { 97 vma->refcount++; 98 } 99 100 out: 101 ttm_bo_unreserve(&nvbo->bo); 102 return ret; 103 } 104 105 static void 106 nouveau_gem_object_delete(void *data) 107 { 108 struct nouveau_vma *vma = data; 109 nouveau_vm_unmap(vma); 110 nouveau_vm_put(vma); 111 kfree(vma); 112 } 113 114 static void 115 nouveau_gem_object_unmap(struct nouveau_bo *nvbo, struct nouveau_vma *vma) 116 { 117 const bool mapped = nvbo->bo.mem.mem_type != TTM_PL_SYSTEM; 118 struct reservation_object *resv = nvbo->bo.resv; 119 struct reservation_object_list *fobj; 120 struct fence *fence = NULL; 121 122 fobj = reservation_object_get_list(resv); 123 124 list_del(&vma->head); 125 126 if (fobj && fobj->shared_count > 1) 127 ttm_bo_wait(&nvbo->bo, true, false, false); 128 else if (fobj && fobj->shared_count == 1) 129 fence = rcu_dereference_protected(fobj->shared[0], 130 reservation_object_held(resv)); 131 else 132 fence = reservation_object_get_excl(nvbo->bo.resv); 133 134 if (fence && mapped) { 135 nouveau_fence_work(fence, nouveau_gem_object_delete, vma); 136 } else { 137 if (mapped) 138 nouveau_vm_unmap(vma); 139 nouveau_vm_put(vma); 140 kfree(vma); 141 } 142 } 143 144 void 145 nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv) 146 { 147 struct nouveau_cli *cli = nouveau_cli(file_priv); 148 struct nouveau_bo *nvbo = nouveau_gem_object(gem); 149 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev); 150 struct device *dev = drm->dev->dev; 151 struct nouveau_vma *vma; 152 int ret; 153 154 if (!cli->vm) 155 return; 156 157 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, NULL); 158 if (ret) 159 return; 160 161 vma = nouveau_bo_vma_find(nvbo, cli->vm); 162 if (vma) { 163 if (--vma->refcount == 0) { 164 ret = pm_runtime_get_sync(dev); 165 if (!WARN_ON(ret < 0 && ret != -EACCES)) { 166 nouveau_gem_object_unmap(nvbo, vma); 167 pm_runtime_mark_last_busy(dev); 168 pm_runtime_put_autosuspend(dev); 169 } 170 } 171 } 172 ttm_bo_unreserve(&nvbo->bo); 173 } 174 175 int 176 nouveau_gem_new(struct drm_device *dev, int size, int align, uint32_t domain, 177 uint32_t tile_mode, uint32_t tile_flags, 178 struct nouveau_bo **pnvbo) 179 { 180 struct nouveau_drm *drm = nouveau_drm(dev); 181 struct nouveau_bo *nvbo; 182 u32 flags = 0; 183 int ret; 184 185 if (domain & NOUVEAU_GEM_DOMAIN_VRAM) 186 flags |= TTM_PL_FLAG_VRAM; 187 if (domain & NOUVEAU_GEM_DOMAIN_GART) 188 flags |= TTM_PL_FLAG_TT; 189 if (!flags || domain & NOUVEAU_GEM_DOMAIN_CPU) 190 flags |= TTM_PL_FLAG_SYSTEM; 191 192 ret = nouveau_bo_new(dev, size, align, flags, tile_mode, 193 tile_flags, NULL, NULL, pnvbo); 194 if (ret) 195 return ret; 196 nvbo = *pnvbo; 197 198 /* we restrict allowed domains on nv50+ to only the types 199 * that were requested at creation time. not possibly on 200 * earlier chips without busting the ABI. 201 */ 202 nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM | 203 NOUVEAU_GEM_DOMAIN_GART; 204 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) 205 nvbo->valid_domains &= domain; 206 207 /* Initialize the embedded gem-object. We return a single gem-reference 208 * to the caller, instead of a normal nouveau_bo ttm reference. */ 209 ret = drm_gem_object_init(dev, &nvbo->gem, nvbo->bo.mem.size); 210 if (ret) { 211 nouveau_bo_ref(NULL, pnvbo); 212 return -ENOMEM; 213 } 214 215 nvbo->bo.persistent_swap_storage = nvbo->gem.filp; 216 return 0; 217 } 218 219 static int 220 nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem, 221 struct drm_nouveau_gem_info *rep) 222 { 223 struct nouveau_cli *cli = nouveau_cli(file_priv); 224 struct nouveau_bo *nvbo = nouveau_gem_object(gem); 225 struct nouveau_vma *vma; 226 227 if (nvbo->bo.mem.mem_type == TTM_PL_TT) 228 rep->domain = NOUVEAU_GEM_DOMAIN_GART; 229 else 230 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM; 231 232 rep->offset = nvbo->bo.offset; 233 if (cli->vm) { 234 vma = nouveau_bo_vma_find(nvbo, cli->vm); 235 if (!vma) 236 return -EINVAL; 237 238 rep->offset = vma->offset; 239 } 240 241 rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT; 242 rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.vma_node); 243 rep->tile_mode = nvbo->tile_mode; 244 rep->tile_flags = nvbo->tile_flags; 245 return 0; 246 } 247 248 int 249 nouveau_gem_ioctl_new(struct drm_device *dev, void *data, 250 struct drm_file *file_priv) 251 { 252 struct nouveau_drm *drm = nouveau_drm(dev); 253 struct nouveau_cli *cli = nouveau_cli(file_priv); 254 struct nouveau_fb *pfb = nvkm_fb(&drm->device); 255 struct drm_nouveau_gem_new *req = data; 256 struct nouveau_bo *nvbo = NULL; 257 int ret = 0; 258 259 if (!pfb->memtype_valid(pfb, req->info.tile_flags)) { 260 NV_PRINTK(error, cli, "bad page flags: 0x%08x\n", req->info.tile_flags); 261 return -EINVAL; 262 } 263 264 ret = nouveau_gem_new(dev, req->info.size, req->align, 265 req->info.domain, req->info.tile_mode, 266 req->info.tile_flags, &nvbo); 267 if (ret) 268 return ret; 269 270 ret = drm_gem_handle_create(file_priv, &nvbo->gem, &req->info.handle); 271 if (ret == 0) { 272 ret = nouveau_gem_info(file_priv, &nvbo->gem, &req->info); 273 if (ret) 274 drm_gem_handle_delete(file_priv, req->info.handle); 275 } 276 277 /* drop reference from allocate - handle holds it now */ 278 drm_gem_object_unreference_unlocked(&nvbo->gem); 279 return ret; 280 } 281 282 static int 283 nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains, 284 uint32_t write_domains, uint32_t valid_domains) 285 { 286 struct nouveau_bo *nvbo = nouveau_gem_object(gem); 287 struct ttm_buffer_object *bo = &nvbo->bo; 288 uint32_t domains = valid_domains & nvbo->valid_domains & 289 (write_domains ? write_domains : read_domains); 290 uint32_t pref_flags = 0, valid_flags = 0; 291 292 if (!domains) 293 return -EINVAL; 294 295 if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) 296 valid_flags |= TTM_PL_FLAG_VRAM; 297 298 if (valid_domains & NOUVEAU_GEM_DOMAIN_GART) 299 valid_flags |= TTM_PL_FLAG_TT; 300 301 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) && 302 bo->mem.mem_type == TTM_PL_VRAM) 303 pref_flags |= TTM_PL_FLAG_VRAM; 304 305 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) && 306 bo->mem.mem_type == TTM_PL_TT) 307 pref_flags |= TTM_PL_FLAG_TT; 308 309 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM) 310 pref_flags |= TTM_PL_FLAG_VRAM; 311 312 else 313 pref_flags |= TTM_PL_FLAG_TT; 314 315 nouveau_bo_placement_set(nvbo, pref_flags, valid_flags); 316 317 return 0; 318 } 319 320 struct validate_op { 321 struct list_head list; 322 struct ww_acquire_ctx ticket; 323 }; 324 325 static void 326 validate_fini_no_ticket(struct validate_op *op, struct nouveau_fence *fence, 327 struct drm_nouveau_gem_pushbuf_bo *pbbo) 328 { 329 struct nouveau_bo *nvbo; 330 struct drm_nouveau_gem_pushbuf_bo *b; 331 332 while (!list_empty(&op->list)) { 333 nvbo = list_entry(op->list.next, struct nouveau_bo, entry); 334 b = &pbbo[nvbo->pbbo_index]; 335 336 if (likely(fence)) 337 nouveau_bo_fence(nvbo, fence, !!b->write_domains); 338 339 if (unlikely(nvbo->validate_mapped)) { 340 ttm_bo_kunmap(&nvbo->kmap); 341 nvbo->validate_mapped = false; 342 } 343 344 list_del(&nvbo->entry); 345 nvbo->reserved_by = NULL; 346 ttm_bo_unreserve_ticket(&nvbo->bo, &op->ticket); 347 drm_gem_object_unreference_unlocked(&nvbo->gem); 348 } 349 } 350 351 static void 352 validate_fini(struct validate_op *op, struct nouveau_fence *fence, 353 struct drm_nouveau_gem_pushbuf_bo *pbbo) 354 { 355 validate_fini_no_ticket(op, fence, pbbo); 356 ww_acquire_fini(&op->ticket); 357 } 358 359 static int 360 validate_init(struct nouveau_channel *chan, struct drm_file *file_priv, 361 struct drm_nouveau_gem_pushbuf_bo *pbbo, 362 int nr_buffers, struct validate_op *op) 363 { 364 struct nouveau_cli *cli = nouveau_cli(file_priv); 365 struct drm_device *dev = chan->drm->dev; 366 int trycnt = 0; 367 int ret, i; 368 struct nouveau_bo *res_bo = NULL; 369 LIST_HEAD(gart_list); 370 LIST_HEAD(vram_list); 371 LIST_HEAD(both_list); 372 373 ww_acquire_init(&op->ticket, &reservation_ww_class); 374 retry: 375 if (++trycnt > 100000) { 376 NV_PRINTK(error, cli, "%s failed and gave up.\n", __func__); 377 return -EINVAL; 378 } 379 380 for (i = 0; i < nr_buffers; i++) { 381 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i]; 382 struct drm_gem_object *gem; 383 struct nouveau_bo *nvbo; 384 385 gem = drm_gem_object_lookup(dev, file_priv, b->handle); 386 if (!gem) { 387 NV_PRINTK(error, cli, "Unknown handle 0x%08x\n", b->handle); 388 ret = -ENOENT; 389 break; 390 } 391 nvbo = nouveau_gem_object(gem); 392 if (nvbo == res_bo) { 393 res_bo = NULL; 394 drm_gem_object_unreference_unlocked(gem); 395 continue; 396 } 397 398 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) { 399 NV_PRINTK(error, cli, "multiple instances of buffer %d on " 400 "validation list\n", b->handle); 401 drm_gem_object_unreference_unlocked(gem); 402 ret = -EINVAL; 403 break; 404 } 405 406 ret = ttm_bo_reserve(&nvbo->bo, true, false, true, &op->ticket); 407 if (ret) { 408 list_splice_tail_init(&vram_list, &op->list); 409 list_splice_tail_init(&gart_list, &op->list); 410 list_splice_tail_init(&both_list, &op->list); 411 validate_fini_no_ticket(op, NULL, NULL); 412 if (unlikely(ret == -EDEADLK)) { 413 ret = ttm_bo_reserve_slowpath(&nvbo->bo, true, 414 &op->ticket); 415 if (!ret) 416 res_bo = nvbo; 417 } 418 if (unlikely(ret)) { 419 if (ret != -ERESTARTSYS) 420 NV_PRINTK(error, cli, "fail reserve\n"); 421 break; 422 } 423 } 424 425 b->user_priv = (uint64_t)(unsigned long)nvbo; 426 nvbo->reserved_by = file_priv; 427 nvbo->pbbo_index = i; 428 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) && 429 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)) 430 list_add_tail(&nvbo->entry, &both_list); 431 else 432 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) 433 list_add_tail(&nvbo->entry, &vram_list); 434 else 435 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART) 436 list_add_tail(&nvbo->entry, &gart_list); 437 else { 438 NV_PRINTK(error, cli, "invalid valid domains: 0x%08x\n", 439 b->valid_domains); 440 list_add_tail(&nvbo->entry, &both_list); 441 ret = -EINVAL; 442 break; 443 } 444 if (nvbo == res_bo) 445 goto retry; 446 } 447 448 ww_acquire_done(&op->ticket); 449 list_splice_tail(&vram_list, &op->list); 450 list_splice_tail(&gart_list, &op->list); 451 list_splice_tail(&both_list, &op->list); 452 if (ret) 453 validate_fini(op, NULL, NULL); 454 return ret; 455 456 } 457 458 static int 459 validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli, 460 struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo, 461 uint64_t user_pbbo_ptr) 462 { 463 struct nouveau_drm *drm = chan->drm; 464 struct drm_nouveau_gem_pushbuf_bo __user *upbbo = 465 (void __force __user *)(uintptr_t)user_pbbo_ptr; 466 struct nouveau_bo *nvbo; 467 int ret, relocs = 0; 468 469 list_for_each_entry(nvbo, list, entry) { 470 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index]; 471 472 ret = nouveau_gem_set_domain(&nvbo->gem, b->read_domains, 473 b->write_domains, 474 b->valid_domains); 475 if (unlikely(ret)) { 476 NV_PRINTK(error, cli, "fail set_domain\n"); 477 return ret; 478 } 479 480 ret = nouveau_bo_validate(nvbo, true, false); 481 if (unlikely(ret)) { 482 if (ret != -ERESTARTSYS) 483 NV_PRINTK(error, cli, "fail ttm_validate\n"); 484 return ret; 485 } 486 487 ret = nouveau_fence_sync(nvbo, chan, !!b->write_domains, true); 488 if (unlikely(ret)) { 489 if (ret != -ERESTARTSYS) 490 NV_PRINTK(error, cli, "fail post-validate sync\n"); 491 return ret; 492 } 493 494 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) { 495 if (nvbo->bo.offset == b->presumed.offset && 496 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM && 497 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) || 498 (nvbo->bo.mem.mem_type == TTM_PL_TT && 499 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART))) 500 continue; 501 502 if (nvbo->bo.mem.mem_type == TTM_PL_TT) 503 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART; 504 else 505 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM; 506 b->presumed.offset = nvbo->bo.offset; 507 b->presumed.valid = 0; 508 relocs++; 509 510 if (copy_to_user(&upbbo[nvbo->pbbo_index].presumed, 511 &b->presumed, sizeof(b->presumed))) 512 return -EFAULT; 513 } 514 } 515 516 return relocs; 517 } 518 519 static int 520 nouveau_gem_pushbuf_validate(struct nouveau_channel *chan, 521 struct drm_file *file_priv, 522 struct drm_nouveau_gem_pushbuf_bo *pbbo, 523 uint64_t user_buffers, int nr_buffers, 524 struct validate_op *op, int *apply_relocs) 525 { 526 struct nouveau_cli *cli = nouveau_cli(file_priv); 527 int ret; 528 529 INIT_LIST_HEAD(&op->list); 530 531 if (nr_buffers == 0) 532 return 0; 533 534 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op); 535 if (unlikely(ret)) { 536 if (ret != -ERESTARTSYS) 537 NV_PRINTK(error, cli, "validate_init\n"); 538 return ret; 539 } 540 541 ret = validate_list(chan, cli, &op->list, pbbo, user_buffers); 542 if (unlikely(ret < 0)) { 543 if (ret != -ERESTARTSYS) 544 NV_PRINTK(error, cli, "validating bo list\n"); 545 validate_fini(op, NULL, NULL); 546 return ret; 547 } 548 *apply_relocs = ret; 549 return 0; 550 } 551 552 static inline void 553 u_free(void *addr) 554 { 555 if (!is_vmalloc_addr(addr)) 556 kfree(addr); 557 else 558 vfree(addr); 559 } 560 561 static inline void * 562 u_memcpya(uint64_t user, unsigned nmemb, unsigned size) 563 { 564 void *mem; 565 void __user *userptr = (void __force __user *)(uintptr_t)user; 566 567 size *= nmemb; 568 569 mem = kmalloc(size, GFP_KERNEL | __GFP_NOWARN); 570 if (!mem) 571 mem = vmalloc(size); 572 if (!mem) 573 return ERR_PTR(-ENOMEM); 574 575 if (copy_from_user(mem, userptr, size)) { 576 u_free(mem); 577 return ERR_PTR(-EFAULT); 578 } 579 580 return mem; 581 } 582 583 static int 584 nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli, 585 struct drm_nouveau_gem_pushbuf *req, 586 struct drm_nouveau_gem_pushbuf_bo *bo) 587 { 588 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL; 589 int ret = 0; 590 unsigned i; 591 592 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc)); 593 if (IS_ERR(reloc)) 594 return PTR_ERR(reloc); 595 596 for (i = 0; i < req->nr_relocs; i++) { 597 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i]; 598 struct drm_nouveau_gem_pushbuf_bo *b; 599 struct nouveau_bo *nvbo; 600 uint32_t data; 601 602 if (unlikely(r->bo_index > req->nr_buffers)) { 603 NV_PRINTK(error, cli, "reloc bo index invalid\n"); 604 ret = -EINVAL; 605 break; 606 } 607 608 b = &bo[r->bo_index]; 609 if (b->presumed.valid) 610 continue; 611 612 if (unlikely(r->reloc_bo_index > req->nr_buffers)) { 613 NV_PRINTK(error, cli, "reloc container bo index invalid\n"); 614 ret = -EINVAL; 615 break; 616 } 617 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv; 618 619 if (unlikely(r->reloc_bo_offset + 4 > 620 nvbo->bo.mem.num_pages << PAGE_SHIFT)) { 621 NV_PRINTK(error, cli, "reloc outside of bo\n"); 622 ret = -EINVAL; 623 break; 624 } 625 626 if (!nvbo->kmap.virtual) { 627 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages, 628 &nvbo->kmap); 629 if (ret) { 630 NV_PRINTK(error, cli, "failed kmap for reloc\n"); 631 break; 632 } 633 nvbo->validate_mapped = true; 634 } 635 636 if (r->flags & NOUVEAU_GEM_RELOC_LOW) 637 data = b->presumed.offset + r->data; 638 else 639 if (r->flags & NOUVEAU_GEM_RELOC_HIGH) 640 data = (b->presumed.offset + r->data) >> 32; 641 else 642 data = r->data; 643 644 if (r->flags & NOUVEAU_GEM_RELOC_OR) { 645 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART) 646 data |= r->tor; 647 else 648 data |= r->vor; 649 } 650 651 ret = ttm_bo_wait(&nvbo->bo, true, false, false); 652 if (ret) { 653 NV_PRINTK(error, cli, "reloc wait_idle failed: %d\n", ret); 654 break; 655 } 656 657 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data); 658 } 659 660 u_free(reloc); 661 return ret; 662 } 663 664 int 665 nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data, 666 struct drm_file *file_priv) 667 { 668 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev); 669 struct nouveau_cli *cli = nouveau_cli(file_priv); 670 struct nouveau_abi16_chan *temp; 671 struct nouveau_drm *drm = nouveau_drm(dev); 672 struct drm_nouveau_gem_pushbuf *req = data; 673 struct drm_nouveau_gem_pushbuf_push *push; 674 struct drm_nouveau_gem_pushbuf_bo *bo; 675 struct nouveau_channel *chan = NULL; 676 struct validate_op op; 677 struct nouveau_fence *fence = NULL; 678 int i, j, ret = 0, do_reloc = 0; 679 680 if (unlikely(!abi16)) 681 return -ENOMEM; 682 683 list_for_each_entry(temp, &abi16->channels, head) { 684 if (temp->chan->object->handle == (NVDRM_CHAN | req->channel)) { 685 chan = temp->chan; 686 break; 687 } 688 } 689 690 if (!chan) 691 return nouveau_abi16_put(abi16, -ENOENT); 692 693 req->vram_available = drm->gem.vram_available; 694 req->gart_available = drm->gem.gart_available; 695 if (unlikely(req->nr_push == 0)) 696 goto out_next; 697 698 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) { 699 NV_PRINTK(error, cli, "pushbuf push count exceeds limit: %d max %d\n", 700 req->nr_push, NOUVEAU_GEM_MAX_PUSH); 701 return nouveau_abi16_put(abi16, -EINVAL); 702 } 703 704 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) { 705 NV_PRINTK(error, cli, "pushbuf bo count exceeds limit: %d max %d\n", 706 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS); 707 return nouveau_abi16_put(abi16, -EINVAL); 708 } 709 710 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) { 711 NV_PRINTK(error, cli, "pushbuf reloc count exceeds limit: %d max %d\n", 712 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS); 713 return nouveau_abi16_put(abi16, -EINVAL); 714 } 715 716 push = u_memcpya(req->push, req->nr_push, sizeof(*push)); 717 if (IS_ERR(push)) 718 return nouveau_abi16_put(abi16, PTR_ERR(push)); 719 720 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo)); 721 if (IS_ERR(bo)) { 722 u_free(push); 723 return nouveau_abi16_put(abi16, PTR_ERR(bo)); 724 } 725 726 /* Ensure all push buffers are on validate list */ 727 for (i = 0; i < req->nr_push; i++) { 728 if (push[i].bo_index >= req->nr_buffers) { 729 NV_PRINTK(error, cli, "push %d buffer not in list\n", i); 730 ret = -EINVAL; 731 goto out_prevalid; 732 } 733 } 734 735 /* Validate buffer list */ 736 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers, 737 req->nr_buffers, &op, &do_reloc); 738 if (ret) { 739 if (ret != -ERESTARTSYS) 740 NV_PRINTK(error, cli, "validate: %d\n", ret); 741 goto out_prevalid; 742 } 743 744 /* Apply any relocations that are required */ 745 if (do_reloc) { 746 ret = nouveau_gem_pushbuf_reloc_apply(cli, req, bo); 747 if (ret) { 748 NV_PRINTK(error, cli, "reloc apply: %d\n", ret); 749 goto out; 750 } 751 } 752 753 if (chan->dma.ib_max) { 754 ret = nouveau_dma_wait(chan, req->nr_push + 1, 16); 755 if (ret) { 756 NV_PRINTK(error, cli, "nv50cal_space: %d\n", ret); 757 goto out; 758 } 759 760 for (i = 0; i < req->nr_push; i++) { 761 struct nouveau_bo *nvbo = (void *)(unsigned long) 762 bo[push[i].bo_index].user_priv; 763 764 nv50_dma_push(chan, nvbo, push[i].offset, 765 push[i].length); 766 } 767 } else 768 if (drm->device.info.chipset >= 0x25) { 769 ret = RING_SPACE(chan, req->nr_push * 2); 770 if (ret) { 771 NV_PRINTK(error, cli, "cal_space: %d\n", ret); 772 goto out; 773 } 774 775 for (i = 0; i < req->nr_push; i++) { 776 struct nouveau_bo *nvbo = (void *)(unsigned long) 777 bo[push[i].bo_index].user_priv; 778 779 OUT_RING(chan, (nvbo->bo.offset + push[i].offset) | 2); 780 OUT_RING(chan, 0); 781 } 782 } else { 783 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS)); 784 if (ret) { 785 NV_PRINTK(error, cli, "jmp_space: %d\n", ret); 786 goto out; 787 } 788 789 for (i = 0; i < req->nr_push; i++) { 790 struct nouveau_bo *nvbo = (void *)(unsigned long) 791 bo[push[i].bo_index].user_priv; 792 uint32_t cmd; 793 794 cmd = chan->push.vma.offset + ((chan->dma.cur + 2) << 2); 795 cmd |= 0x20000000; 796 if (unlikely(cmd != req->suffix0)) { 797 if (!nvbo->kmap.virtual) { 798 ret = ttm_bo_kmap(&nvbo->bo, 0, 799 nvbo->bo.mem. 800 num_pages, 801 &nvbo->kmap); 802 if (ret) { 803 WIND_RING(chan); 804 goto out; 805 } 806 nvbo->validate_mapped = true; 807 } 808 809 nouveau_bo_wr32(nvbo, (push[i].offset + 810 push[i].length - 8) / 4, cmd); 811 } 812 813 OUT_RING(chan, 0x20000000 | 814 (nvbo->bo.offset + push[i].offset)); 815 OUT_RING(chan, 0); 816 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++) 817 OUT_RING(chan, 0); 818 } 819 } 820 821 ret = nouveau_fence_new(chan, false, &fence); 822 if (ret) { 823 NV_PRINTK(error, cli, "error fencing pushbuf: %d\n", ret); 824 WIND_RING(chan); 825 goto out; 826 } 827 828 out: 829 validate_fini(&op, fence, bo); 830 nouveau_fence_unref(&fence); 831 832 out_prevalid: 833 u_free(bo); 834 u_free(push); 835 836 out_next: 837 if (chan->dma.ib_max) { 838 req->suffix0 = 0x00000000; 839 req->suffix1 = 0x00000000; 840 } else 841 if (drm->device.info.chipset >= 0x25) { 842 req->suffix0 = 0x00020000; 843 req->suffix1 = 0x00000000; 844 } else { 845 req->suffix0 = 0x20000000 | 846 (chan->push.vma.offset + ((chan->dma.cur + 2) << 2)); 847 req->suffix1 = 0x00000000; 848 } 849 850 return nouveau_abi16_put(abi16, ret); 851 } 852 853 static inline uint32_t 854 domain_to_ttm(struct nouveau_bo *nvbo, uint32_t domain) 855 { 856 uint32_t flags = 0; 857 858 if (domain & NOUVEAU_GEM_DOMAIN_VRAM) 859 flags |= TTM_PL_FLAG_VRAM; 860 if (domain & NOUVEAU_GEM_DOMAIN_GART) 861 flags |= TTM_PL_FLAG_TT; 862 863 return flags; 864 } 865 866 int 867 nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data, 868 struct drm_file *file_priv) 869 { 870 struct drm_nouveau_gem_cpu_prep *req = data; 871 struct drm_gem_object *gem; 872 struct nouveau_bo *nvbo; 873 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT); 874 bool write = !!(req->flags & NOUVEAU_GEM_CPU_PREP_WRITE); 875 int ret; 876 877 gem = drm_gem_object_lookup(dev, file_priv, req->handle); 878 if (!gem) 879 return -ENOENT; 880 nvbo = nouveau_gem_object(gem); 881 882 if (no_wait) 883 ret = reservation_object_test_signaled_rcu(nvbo->bo.resv, write) ? 0 : -EBUSY; 884 else { 885 long lret; 886 887 lret = reservation_object_wait_timeout_rcu(nvbo->bo.resv, write, true, 30 * HZ); 888 if (!lret) 889 ret = -EBUSY; 890 else if (lret > 0) 891 ret = 0; 892 else 893 ret = lret; 894 } 895 nouveau_bo_sync_for_cpu(nvbo); 896 drm_gem_object_unreference_unlocked(gem); 897 898 return ret; 899 } 900 901 int 902 nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data, 903 struct drm_file *file_priv) 904 { 905 struct drm_nouveau_gem_cpu_fini *req = data; 906 struct drm_gem_object *gem; 907 struct nouveau_bo *nvbo; 908 909 gem = drm_gem_object_lookup(dev, file_priv, req->handle); 910 if (!gem) 911 return -ENOENT; 912 nvbo = nouveau_gem_object(gem); 913 914 nouveau_bo_sync_for_device(nvbo); 915 drm_gem_object_unreference_unlocked(gem); 916 return 0; 917 } 918 919 int 920 nouveau_gem_ioctl_info(struct drm_device *dev, void *data, 921 struct drm_file *file_priv) 922 { 923 struct drm_nouveau_gem_info *req = data; 924 struct drm_gem_object *gem; 925 int ret; 926 927 gem = drm_gem_object_lookup(dev, file_priv, req->handle); 928 if (!gem) 929 return -ENOENT; 930 931 ret = nouveau_gem_info(file_priv, gem, req); 932 drm_gem_object_unreference_unlocked(gem); 933 return ret; 934 } 935 936