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 nvkm_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 nvkm_vma *vma = data; 109 nvkm_vm_unmap(vma); 110 nvkm_vm_put(vma); 111 kfree(vma); 112 } 113 114 static void 115 nouveau_gem_object_unmap(struct nouveau_bo *nvbo, struct nvkm_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 nvkm_vm_unmap(vma); 139 nvkm_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 nvkm_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 if (domain & NOUVEAU_GEM_DOMAIN_COHERENT) 193 flags |= TTM_PL_FLAG_UNCACHED; 194 195 ret = nouveau_bo_new(dev, size, align, flags, tile_mode, 196 tile_flags, NULL, NULL, pnvbo); 197 if (ret) 198 return ret; 199 nvbo = *pnvbo; 200 201 /* we restrict allowed domains on nv50+ to only the types 202 * that were requested at creation time. not possibly on 203 * earlier chips without busting the ABI. 204 */ 205 nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM | 206 NOUVEAU_GEM_DOMAIN_GART; 207 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) 208 nvbo->valid_domains &= domain; 209 210 /* Initialize the embedded gem-object. We return a single gem-reference 211 * to the caller, instead of a normal nouveau_bo ttm reference. */ 212 ret = drm_gem_object_init(dev, &nvbo->gem, nvbo->bo.mem.size); 213 if (ret) { 214 nouveau_bo_ref(NULL, pnvbo); 215 return -ENOMEM; 216 } 217 218 nvbo->bo.persistent_swap_storage = nvbo->gem.filp; 219 return 0; 220 } 221 222 static int 223 nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem, 224 struct drm_nouveau_gem_info *rep) 225 { 226 struct nouveau_cli *cli = nouveau_cli(file_priv); 227 struct nouveau_bo *nvbo = nouveau_gem_object(gem); 228 struct nvkm_vma *vma; 229 230 if (nvbo->bo.mem.mem_type == TTM_PL_TT) 231 rep->domain = NOUVEAU_GEM_DOMAIN_GART; 232 else 233 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM; 234 235 rep->offset = nvbo->bo.offset; 236 if (cli->vm) { 237 vma = nouveau_bo_vma_find(nvbo, cli->vm); 238 if (!vma) 239 return -EINVAL; 240 241 rep->offset = vma->offset; 242 } 243 244 rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT; 245 rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.vma_node); 246 rep->tile_mode = nvbo->tile_mode; 247 rep->tile_flags = nvbo->tile_flags; 248 return 0; 249 } 250 251 int 252 nouveau_gem_ioctl_new(struct drm_device *dev, void *data, 253 struct drm_file *file_priv) 254 { 255 struct nouveau_drm *drm = nouveau_drm(dev); 256 struct nouveau_cli *cli = nouveau_cli(file_priv); 257 struct nvkm_fb *fb = nvxx_fb(&drm->device); 258 struct drm_nouveau_gem_new *req = data; 259 struct nouveau_bo *nvbo = NULL; 260 int ret = 0; 261 262 if (!fb->memtype_valid(fb, req->info.tile_flags)) { 263 NV_PRINTK(error, cli, "bad page flags: 0x%08x\n", req->info.tile_flags); 264 return -EINVAL; 265 } 266 267 ret = nouveau_gem_new(dev, req->info.size, req->align, 268 req->info.domain, req->info.tile_mode, 269 req->info.tile_flags, &nvbo); 270 if (ret) 271 return ret; 272 273 ret = drm_gem_handle_create(file_priv, &nvbo->gem, &req->info.handle); 274 if (ret == 0) { 275 ret = nouveau_gem_info(file_priv, &nvbo->gem, &req->info); 276 if (ret) 277 drm_gem_handle_delete(file_priv, req->info.handle); 278 } 279 280 /* drop reference from allocate - handle holds it now */ 281 drm_gem_object_unreference_unlocked(&nvbo->gem); 282 return ret; 283 } 284 285 static int 286 nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains, 287 uint32_t write_domains, uint32_t valid_domains) 288 { 289 struct nouveau_bo *nvbo = nouveau_gem_object(gem); 290 struct ttm_buffer_object *bo = &nvbo->bo; 291 uint32_t domains = valid_domains & nvbo->valid_domains & 292 (write_domains ? write_domains : read_domains); 293 uint32_t pref_flags = 0, valid_flags = 0; 294 295 if (!domains) 296 return -EINVAL; 297 298 if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) 299 valid_flags |= TTM_PL_FLAG_VRAM; 300 301 if (valid_domains & NOUVEAU_GEM_DOMAIN_GART) 302 valid_flags |= TTM_PL_FLAG_TT; 303 304 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) && 305 bo->mem.mem_type == TTM_PL_VRAM) 306 pref_flags |= TTM_PL_FLAG_VRAM; 307 308 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) && 309 bo->mem.mem_type == TTM_PL_TT) 310 pref_flags |= TTM_PL_FLAG_TT; 311 312 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM) 313 pref_flags |= TTM_PL_FLAG_VRAM; 314 315 else 316 pref_flags |= TTM_PL_FLAG_TT; 317 318 nouveau_bo_placement_set(nvbo, pref_flags, valid_flags); 319 320 return 0; 321 } 322 323 struct validate_op { 324 struct list_head list; 325 struct ww_acquire_ctx ticket; 326 }; 327 328 static void 329 validate_fini_no_ticket(struct validate_op *op, struct nouveau_fence *fence, 330 struct drm_nouveau_gem_pushbuf_bo *pbbo) 331 { 332 struct nouveau_bo *nvbo; 333 struct drm_nouveau_gem_pushbuf_bo *b; 334 335 while (!list_empty(&op->list)) { 336 nvbo = list_entry(op->list.next, struct nouveau_bo, entry); 337 b = &pbbo[nvbo->pbbo_index]; 338 339 if (likely(fence)) 340 nouveau_bo_fence(nvbo, fence, !!b->write_domains); 341 342 if (unlikely(nvbo->validate_mapped)) { 343 ttm_bo_kunmap(&nvbo->kmap); 344 nvbo->validate_mapped = false; 345 } 346 347 list_del(&nvbo->entry); 348 nvbo->reserved_by = NULL; 349 ttm_bo_unreserve_ticket(&nvbo->bo, &op->ticket); 350 drm_gem_object_unreference_unlocked(&nvbo->gem); 351 } 352 } 353 354 static void 355 validate_fini(struct validate_op *op, struct nouveau_fence *fence, 356 struct drm_nouveau_gem_pushbuf_bo *pbbo) 357 { 358 validate_fini_no_ticket(op, fence, pbbo); 359 ww_acquire_fini(&op->ticket); 360 } 361 362 static int 363 validate_init(struct nouveau_channel *chan, struct drm_file *file_priv, 364 struct drm_nouveau_gem_pushbuf_bo *pbbo, 365 int nr_buffers, struct validate_op *op) 366 { 367 struct nouveau_cli *cli = nouveau_cli(file_priv); 368 struct drm_device *dev = chan->drm->dev; 369 int trycnt = 0; 370 int ret, i; 371 struct nouveau_bo *res_bo = NULL; 372 LIST_HEAD(gart_list); 373 LIST_HEAD(vram_list); 374 LIST_HEAD(both_list); 375 376 ww_acquire_init(&op->ticket, &reservation_ww_class); 377 retry: 378 if (++trycnt > 100000) { 379 NV_PRINTK(error, cli, "%s failed and gave up.\n", __func__); 380 return -EINVAL; 381 } 382 383 for (i = 0; i < nr_buffers; i++) { 384 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i]; 385 struct drm_gem_object *gem; 386 struct nouveau_bo *nvbo; 387 388 gem = drm_gem_object_lookup(dev, file_priv, b->handle); 389 if (!gem) { 390 NV_PRINTK(error, cli, "Unknown handle 0x%08x\n", b->handle); 391 ret = -ENOENT; 392 break; 393 } 394 nvbo = nouveau_gem_object(gem); 395 if (nvbo == res_bo) { 396 res_bo = NULL; 397 drm_gem_object_unreference_unlocked(gem); 398 continue; 399 } 400 401 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) { 402 NV_PRINTK(error, cli, "multiple instances of buffer %d on " 403 "validation list\n", b->handle); 404 drm_gem_object_unreference_unlocked(gem); 405 ret = -EINVAL; 406 break; 407 } 408 409 ret = ttm_bo_reserve(&nvbo->bo, true, false, true, &op->ticket); 410 if (ret) { 411 list_splice_tail_init(&vram_list, &op->list); 412 list_splice_tail_init(&gart_list, &op->list); 413 list_splice_tail_init(&both_list, &op->list); 414 validate_fini_no_ticket(op, NULL, NULL); 415 if (unlikely(ret == -EDEADLK)) { 416 ret = ttm_bo_reserve_slowpath(&nvbo->bo, true, 417 &op->ticket); 418 if (!ret) 419 res_bo = nvbo; 420 } 421 if (unlikely(ret)) { 422 if (ret != -ERESTARTSYS) 423 NV_PRINTK(error, cli, "fail reserve\n"); 424 break; 425 } 426 } 427 428 b->user_priv = (uint64_t)(unsigned long)nvbo; 429 nvbo->reserved_by = file_priv; 430 nvbo->pbbo_index = i; 431 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) && 432 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)) 433 list_add_tail(&nvbo->entry, &both_list); 434 else 435 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) 436 list_add_tail(&nvbo->entry, &vram_list); 437 else 438 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART) 439 list_add_tail(&nvbo->entry, &gart_list); 440 else { 441 NV_PRINTK(error, cli, "invalid valid domains: 0x%08x\n", 442 b->valid_domains); 443 list_add_tail(&nvbo->entry, &both_list); 444 ret = -EINVAL; 445 break; 446 } 447 if (nvbo == res_bo) 448 goto retry; 449 } 450 451 ww_acquire_done(&op->ticket); 452 list_splice_tail(&vram_list, &op->list); 453 list_splice_tail(&gart_list, &op->list); 454 list_splice_tail(&both_list, &op->list); 455 if (ret) 456 validate_fini(op, NULL, NULL); 457 return ret; 458 459 } 460 461 static int 462 validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli, 463 struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo, 464 uint64_t user_pbbo_ptr) 465 { 466 struct nouveau_drm *drm = chan->drm; 467 struct drm_nouveau_gem_pushbuf_bo __user *upbbo = 468 (void __force __user *)(uintptr_t)user_pbbo_ptr; 469 struct nouveau_bo *nvbo; 470 int ret, relocs = 0; 471 472 list_for_each_entry(nvbo, list, entry) { 473 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index]; 474 475 ret = nouveau_gem_set_domain(&nvbo->gem, b->read_domains, 476 b->write_domains, 477 b->valid_domains); 478 if (unlikely(ret)) { 479 NV_PRINTK(error, cli, "fail set_domain\n"); 480 return ret; 481 } 482 483 ret = nouveau_bo_validate(nvbo, true, false); 484 if (unlikely(ret)) { 485 if (ret != -ERESTARTSYS) 486 NV_PRINTK(error, cli, "fail ttm_validate\n"); 487 return ret; 488 } 489 490 ret = nouveau_fence_sync(nvbo, chan, !!b->write_domains, true); 491 if (unlikely(ret)) { 492 if (ret != -ERESTARTSYS) 493 NV_PRINTK(error, cli, "fail post-validate sync\n"); 494 return ret; 495 } 496 497 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) { 498 if (nvbo->bo.offset == b->presumed.offset && 499 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM && 500 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) || 501 (nvbo->bo.mem.mem_type == TTM_PL_TT && 502 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART))) 503 continue; 504 505 if (nvbo->bo.mem.mem_type == TTM_PL_TT) 506 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART; 507 else 508 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM; 509 b->presumed.offset = nvbo->bo.offset; 510 b->presumed.valid = 0; 511 relocs++; 512 513 if (copy_to_user(&upbbo[nvbo->pbbo_index].presumed, 514 &b->presumed, sizeof(b->presumed))) 515 return -EFAULT; 516 } 517 } 518 519 return relocs; 520 } 521 522 static int 523 nouveau_gem_pushbuf_validate(struct nouveau_channel *chan, 524 struct drm_file *file_priv, 525 struct drm_nouveau_gem_pushbuf_bo *pbbo, 526 uint64_t user_buffers, int nr_buffers, 527 struct validate_op *op, int *apply_relocs) 528 { 529 struct nouveau_cli *cli = nouveau_cli(file_priv); 530 int ret; 531 532 INIT_LIST_HEAD(&op->list); 533 534 if (nr_buffers == 0) 535 return 0; 536 537 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op); 538 if (unlikely(ret)) { 539 if (ret != -ERESTARTSYS) 540 NV_PRINTK(error, cli, "validate_init\n"); 541 return ret; 542 } 543 544 ret = validate_list(chan, cli, &op->list, pbbo, user_buffers); 545 if (unlikely(ret < 0)) { 546 if (ret != -ERESTARTSYS) 547 NV_PRINTK(error, cli, "validating bo list\n"); 548 validate_fini(op, NULL, NULL); 549 return ret; 550 } 551 *apply_relocs = ret; 552 return 0; 553 } 554 555 static inline void 556 u_free(void *addr) 557 { 558 kvfree(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 int 854 nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data, 855 struct drm_file *file_priv) 856 { 857 struct drm_nouveau_gem_cpu_prep *req = data; 858 struct drm_gem_object *gem; 859 struct nouveau_bo *nvbo; 860 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT); 861 bool write = !!(req->flags & NOUVEAU_GEM_CPU_PREP_WRITE); 862 int ret; 863 864 gem = drm_gem_object_lookup(dev, file_priv, req->handle); 865 if (!gem) 866 return -ENOENT; 867 nvbo = nouveau_gem_object(gem); 868 869 if (no_wait) 870 ret = reservation_object_test_signaled_rcu(nvbo->bo.resv, write) ? 0 : -EBUSY; 871 else { 872 long lret; 873 874 lret = reservation_object_wait_timeout_rcu(nvbo->bo.resv, write, true, 30 * HZ); 875 if (!lret) 876 ret = -EBUSY; 877 else if (lret > 0) 878 ret = 0; 879 else 880 ret = lret; 881 } 882 nouveau_bo_sync_for_cpu(nvbo); 883 drm_gem_object_unreference_unlocked(gem); 884 885 return ret; 886 } 887 888 int 889 nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data, 890 struct drm_file *file_priv) 891 { 892 struct drm_nouveau_gem_cpu_fini *req = data; 893 struct drm_gem_object *gem; 894 struct nouveau_bo *nvbo; 895 896 gem = drm_gem_object_lookup(dev, file_priv, req->handle); 897 if (!gem) 898 return -ENOENT; 899 nvbo = nouveau_gem_object(gem); 900 901 nouveau_bo_sync_for_device(nvbo); 902 drm_gem_object_unreference_unlocked(gem); 903 return 0; 904 } 905 906 int 907 nouveau_gem_ioctl_info(struct drm_device *dev, void *data, 908 struct drm_file *file_priv) 909 { 910 struct drm_nouveau_gem_info *req = data; 911 struct drm_gem_object *gem; 912 int ret; 913 914 gem = drm_gem_object_lookup(dev, file_priv, req->handle); 915 if (!gem) 916 return -ENOENT; 917 918 ret = nouveau_gem_info(file_priv, gem, req); 919 drm_gem_object_unreference_unlocked(gem); 920 return ret; 921 } 922 923