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_drv.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, 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 kfree(vma); 89 goto out; 90 } 91 92 ret = nouveau_bo_vma_add(nvbo, cli->vm, vma); 93 if (ret) 94 kfree(vma); 95 96 pm_runtime_mark_last_busy(dev); 97 pm_runtime_put_autosuspend(dev); 98 } else { 99 vma->refcount++; 100 } 101 102 out: 103 ttm_bo_unreserve(&nvbo->bo); 104 return ret; 105 } 106 107 static void 108 nouveau_gem_object_delete(void *data) 109 { 110 struct nvkm_vma *vma = data; 111 nvkm_vm_unmap(vma); 112 nvkm_vm_put(vma); 113 kfree(vma); 114 } 115 116 static void 117 nouveau_gem_object_unmap(struct nouveau_bo *nvbo, struct nvkm_vma *vma) 118 { 119 const bool mapped = nvbo->bo.mem.mem_type != TTM_PL_SYSTEM; 120 struct reservation_object *resv = nvbo->bo.resv; 121 struct reservation_object_list *fobj; 122 struct dma_fence *fence = NULL; 123 124 fobj = reservation_object_get_list(resv); 125 126 list_del(&vma->head); 127 128 if (fobj && fobj->shared_count > 1) 129 ttm_bo_wait(&nvbo->bo, false, false); 130 else if (fobj && fobj->shared_count == 1) 131 fence = rcu_dereference_protected(fobj->shared[0], 132 reservation_object_held(resv)); 133 else 134 fence = reservation_object_get_excl(nvbo->bo.resv); 135 136 if (fence && mapped) { 137 nouveau_fence_work(fence, nouveau_gem_object_delete, vma); 138 } else { 139 if (mapped) 140 nvkm_vm_unmap(vma); 141 nvkm_vm_put(vma); 142 kfree(vma); 143 } 144 } 145 146 void 147 nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv) 148 { 149 struct nouveau_cli *cli = nouveau_cli(file_priv); 150 struct nouveau_bo *nvbo = nouveau_gem_object(gem); 151 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev); 152 struct device *dev = drm->dev->dev; 153 struct nvkm_vma *vma; 154 int ret; 155 156 if (!cli->vm) 157 return; 158 159 ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL); 160 if (ret) 161 return; 162 163 vma = nouveau_bo_vma_find(nvbo, cli->vm); 164 if (vma) { 165 if (--vma->refcount == 0) { 166 ret = pm_runtime_get_sync(dev); 167 if (!WARN_ON(ret < 0 && ret != -EACCES)) { 168 nouveau_gem_object_unmap(nvbo, vma); 169 pm_runtime_mark_last_busy(dev); 170 pm_runtime_put_autosuspend(dev); 171 } 172 } 173 } 174 ttm_bo_unreserve(&nvbo->bo); 175 } 176 177 int 178 nouveau_gem_new(struct nouveau_cli *cli, u64 size, int align, uint32_t domain, 179 uint32_t tile_mode, uint32_t tile_flags, 180 struct nouveau_bo **pnvbo) 181 { 182 struct nouveau_drm *drm = nouveau_drm(cli->dev); 183 struct nouveau_bo *nvbo; 184 u32 flags = 0; 185 int ret; 186 187 if (domain & NOUVEAU_GEM_DOMAIN_VRAM) 188 flags |= TTM_PL_FLAG_VRAM; 189 if (domain & NOUVEAU_GEM_DOMAIN_GART) 190 flags |= TTM_PL_FLAG_TT; 191 if (!flags || domain & NOUVEAU_GEM_DOMAIN_CPU) 192 flags |= TTM_PL_FLAG_SYSTEM; 193 194 if (domain & NOUVEAU_GEM_DOMAIN_COHERENT) 195 flags |= TTM_PL_FLAG_UNCACHED; 196 197 ret = nouveau_bo_new(cli, size, align, flags, tile_mode, 198 tile_flags, NULL, NULL, pnvbo); 199 if (ret) 200 return ret; 201 nvbo = *pnvbo; 202 203 /* we restrict allowed domains on nv50+ to only the types 204 * that were requested at creation time. not possibly on 205 * earlier chips without busting the ABI. 206 */ 207 nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM | 208 NOUVEAU_GEM_DOMAIN_GART; 209 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) 210 nvbo->valid_domains &= domain; 211 212 /* Initialize the embedded gem-object. We return a single gem-reference 213 * to the caller, instead of a normal nouveau_bo ttm reference. */ 214 ret = drm_gem_object_init(drm->dev, &nvbo->gem, nvbo->bo.mem.size); 215 if (ret) { 216 nouveau_bo_ref(NULL, pnvbo); 217 return -ENOMEM; 218 } 219 220 nvbo->bo.persistent_swap_storage = nvbo->gem.filp; 221 return 0; 222 } 223 224 static int 225 nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem, 226 struct drm_nouveau_gem_info *rep) 227 { 228 struct nouveau_cli *cli = nouveau_cli(file_priv); 229 struct nouveau_bo *nvbo = nouveau_gem_object(gem); 230 struct nvkm_vma *vma; 231 232 if (is_power_of_2(nvbo->valid_domains)) 233 rep->domain = nvbo->valid_domains; 234 else if (nvbo->bo.mem.mem_type == TTM_PL_TT) 235 rep->domain = NOUVEAU_GEM_DOMAIN_GART; 236 else 237 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM; 238 rep->offset = nvbo->bo.offset; 239 if (cli->vm) { 240 vma = nouveau_bo_vma_find(nvbo, cli->vm); 241 if (!vma) 242 return -EINVAL; 243 244 rep->offset = vma->offset; 245 } 246 247 rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT; 248 rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.vma_node); 249 rep->tile_mode = nvbo->tile_mode; 250 rep->tile_flags = nvbo->tile_flags; 251 return 0; 252 } 253 254 int 255 nouveau_gem_ioctl_new(struct drm_device *dev, void *data, 256 struct drm_file *file_priv) 257 { 258 struct nouveau_drm *drm = nouveau_drm(dev); 259 struct nouveau_cli *cli = nouveau_cli(file_priv); 260 struct nvkm_fb *fb = nvxx_fb(&drm->client.device); 261 struct drm_nouveau_gem_new *req = data; 262 struct nouveau_bo *nvbo = NULL; 263 int ret = 0; 264 265 if (!nvkm_fb_memtype_valid(fb, req->info.tile_flags)) { 266 NV_PRINTK(err, cli, "bad page flags: 0x%08x\n", req->info.tile_flags); 267 return -EINVAL; 268 } 269 270 ret = nouveau_gem_new(cli, req->info.size, req->align, 271 req->info.domain, req->info.tile_mode, 272 req->info.tile_flags, &nvbo); 273 if (ret) 274 return ret; 275 276 ret = drm_gem_handle_create(file_priv, &nvbo->gem, &req->info.handle); 277 if (ret == 0) { 278 ret = nouveau_gem_info(file_priv, &nvbo->gem, &req->info); 279 if (ret) 280 drm_gem_handle_delete(file_priv, req->info.handle); 281 } 282 283 /* drop reference from allocate - handle holds it now */ 284 drm_gem_object_unreference_unlocked(&nvbo->gem); 285 return ret; 286 } 287 288 static int 289 nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains, 290 uint32_t write_domains, uint32_t valid_domains) 291 { 292 struct nouveau_bo *nvbo = nouveau_gem_object(gem); 293 struct ttm_buffer_object *bo = &nvbo->bo; 294 uint32_t domains = valid_domains & nvbo->valid_domains & 295 (write_domains ? write_domains : read_domains); 296 uint32_t pref_flags = 0, valid_flags = 0; 297 298 if (!domains) 299 return -EINVAL; 300 301 if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) 302 valid_flags |= TTM_PL_FLAG_VRAM; 303 304 if (valid_domains & NOUVEAU_GEM_DOMAIN_GART) 305 valid_flags |= TTM_PL_FLAG_TT; 306 307 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) && 308 bo->mem.mem_type == TTM_PL_VRAM) 309 pref_flags |= TTM_PL_FLAG_VRAM; 310 311 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) && 312 bo->mem.mem_type == TTM_PL_TT) 313 pref_flags |= TTM_PL_FLAG_TT; 314 315 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM) 316 pref_flags |= TTM_PL_FLAG_VRAM; 317 318 else 319 pref_flags |= TTM_PL_FLAG_TT; 320 321 nouveau_bo_placement_set(nvbo, pref_flags, valid_flags); 322 323 return 0; 324 } 325 326 struct validate_op { 327 struct list_head list; 328 struct ww_acquire_ctx ticket; 329 }; 330 331 static void 332 validate_fini_no_ticket(struct validate_op *op, struct nouveau_fence *fence, 333 struct drm_nouveau_gem_pushbuf_bo *pbbo) 334 { 335 struct nouveau_bo *nvbo; 336 struct drm_nouveau_gem_pushbuf_bo *b; 337 338 while (!list_empty(&op->list)) { 339 nvbo = list_entry(op->list.next, struct nouveau_bo, entry); 340 b = &pbbo[nvbo->pbbo_index]; 341 342 if (likely(fence)) 343 nouveau_bo_fence(nvbo, fence, !!b->write_domains); 344 345 if (unlikely(nvbo->validate_mapped)) { 346 ttm_bo_kunmap(&nvbo->kmap); 347 nvbo->validate_mapped = false; 348 } 349 350 list_del(&nvbo->entry); 351 nvbo->reserved_by = NULL; 352 ttm_bo_unreserve_ticket(&nvbo->bo, &op->ticket); 353 drm_gem_object_unreference_unlocked(&nvbo->gem); 354 } 355 } 356 357 static void 358 validate_fini(struct validate_op *op, struct nouveau_fence *fence, 359 struct drm_nouveau_gem_pushbuf_bo *pbbo) 360 { 361 validate_fini_no_ticket(op, fence, pbbo); 362 ww_acquire_fini(&op->ticket); 363 } 364 365 static int 366 validate_init(struct nouveau_channel *chan, struct drm_file *file_priv, 367 struct drm_nouveau_gem_pushbuf_bo *pbbo, 368 int nr_buffers, struct validate_op *op) 369 { 370 struct nouveau_cli *cli = nouveau_cli(file_priv); 371 int trycnt = 0; 372 int ret = -EINVAL, i; 373 struct nouveau_bo *res_bo = NULL; 374 LIST_HEAD(gart_list); 375 LIST_HEAD(vram_list); 376 LIST_HEAD(both_list); 377 378 ww_acquire_init(&op->ticket, &reservation_ww_class); 379 retry: 380 if (++trycnt > 100000) { 381 NV_PRINTK(err, cli, "%s failed and gave up.\n", __func__); 382 return -EINVAL; 383 } 384 385 for (i = 0; i < nr_buffers; i++) { 386 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i]; 387 struct drm_gem_object *gem; 388 struct nouveau_bo *nvbo; 389 390 gem = drm_gem_object_lookup(file_priv, b->handle); 391 if (!gem) { 392 NV_PRINTK(err, cli, "Unknown handle 0x%08x\n", b->handle); 393 ret = -ENOENT; 394 break; 395 } 396 nvbo = nouveau_gem_object(gem); 397 if (nvbo == res_bo) { 398 res_bo = NULL; 399 drm_gem_object_unreference_unlocked(gem); 400 continue; 401 } 402 403 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) { 404 NV_PRINTK(err, cli, "multiple instances of buffer %d on " 405 "validation list\n", b->handle); 406 drm_gem_object_unreference_unlocked(gem); 407 ret = -EINVAL; 408 break; 409 } 410 411 ret = ttm_bo_reserve(&nvbo->bo, true, false, &op->ticket); 412 if (ret) { 413 list_splice_tail_init(&vram_list, &op->list); 414 list_splice_tail_init(&gart_list, &op->list); 415 list_splice_tail_init(&both_list, &op->list); 416 validate_fini_no_ticket(op, NULL, NULL); 417 if (unlikely(ret == -EDEADLK)) { 418 ret = ttm_bo_reserve_slowpath(&nvbo->bo, true, 419 &op->ticket); 420 if (!ret) 421 res_bo = nvbo; 422 } 423 if (unlikely(ret)) { 424 if (ret != -ERESTARTSYS) 425 NV_PRINTK(err, cli, "fail reserve\n"); 426 break; 427 } 428 } 429 430 b->user_priv = (uint64_t)(unsigned long)nvbo; 431 nvbo->reserved_by = file_priv; 432 nvbo->pbbo_index = i; 433 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) && 434 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)) 435 list_add_tail(&nvbo->entry, &both_list); 436 else 437 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) 438 list_add_tail(&nvbo->entry, &vram_list); 439 else 440 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART) 441 list_add_tail(&nvbo->entry, &gart_list); 442 else { 443 NV_PRINTK(err, cli, "invalid valid domains: 0x%08x\n", 444 b->valid_domains); 445 list_add_tail(&nvbo->entry, &both_list); 446 ret = -EINVAL; 447 break; 448 } 449 if (nvbo == res_bo) 450 goto retry; 451 } 452 453 ww_acquire_done(&op->ticket); 454 list_splice_tail(&vram_list, &op->list); 455 list_splice_tail(&gart_list, &op->list); 456 list_splice_tail(&both_list, &op->list); 457 if (ret) 458 validate_fini(op, NULL, NULL); 459 return ret; 460 461 } 462 463 static int 464 validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli, 465 struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo, 466 uint64_t user_pbbo_ptr) 467 { 468 struct nouveau_drm *drm = chan->drm; 469 struct drm_nouveau_gem_pushbuf_bo __user *upbbo = 470 (void __force __user *)(uintptr_t)user_pbbo_ptr; 471 struct nouveau_bo *nvbo; 472 int ret, relocs = 0; 473 474 list_for_each_entry(nvbo, list, entry) { 475 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index]; 476 477 ret = nouveau_gem_set_domain(&nvbo->gem, b->read_domains, 478 b->write_domains, 479 b->valid_domains); 480 if (unlikely(ret)) { 481 NV_PRINTK(err, cli, "fail set_domain\n"); 482 return ret; 483 } 484 485 ret = nouveau_bo_validate(nvbo, true, false); 486 if (unlikely(ret)) { 487 if (ret != -ERESTARTSYS) 488 NV_PRINTK(err, cli, "fail ttm_validate\n"); 489 return ret; 490 } 491 492 ret = nouveau_fence_sync(nvbo, chan, !!b->write_domains, true); 493 if (unlikely(ret)) { 494 if (ret != -ERESTARTSYS) 495 NV_PRINTK(err, cli, "fail post-validate sync\n"); 496 return ret; 497 } 498 499 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) { 500 if (nvbo->bo.offset == b->presumed.offset && 501 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM && 502 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) || 503 (nvbo->bo.mem.mem_type == TTM_PL_TT && 504 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART))) 505 continue; 506 507 if (nvbo->bo.mem.mem_type == TTM_PL_TT) 508 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART; 509 else 510 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM; 511 b->presumed.offset = nvbo->bo.offset; 512 b->presumed.valid = 0; 513 relocs++; 514 515 if (copy_to_user(&upbbo[nvbo->pbbo_index].presumed, 516 &b->presumed, sizeof(b->presumed))) 517 return -EFAULT; 518 } 519 } 520 521 return relocs; 522 } 523 524 static int 525 nouveau_gem_pushbuf_validate(struct nouveau_channel *chan, 526 struct drm_file *file_priv, 527 struct drm_nouveau_gem_pushbuf_bo *pbbo, 528 uint64_t user_buffers, int nr_buffers, 529 struct validate_op *op, int *apply_relocs) 530 { 531 struct nouveau_cli *cli = nouveau_cli(file_priv); 532 int ret; 533 534 INIT_LIST_HEAD(&op->list); 535 536 if (nr_buffers == 0) 537 return 0; 538 539 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op); 540 if (unlikely(ret)) { 541 if (ret != -ERESTARTSYS) 542 NV_PRINTK(err, cli, "validate_init\n"); 543 return ret; 544 } 545 546 ret = validate_list(chan, cli, &op->list, pbbo, user_buffers); 547 if (unlikely(ret < 0)) { 548 if (ret != -ERESTARTSYS) 549 NV_PRINTK(err, cli, "validating bo list\n"); 550 validate_fini(op, NULL, NULL); 551 return ret; 552 } 553 *apply_relocs = ret; 554 return 0; 555 } 556 557 static inline void 558 u_free(void *addr) 559 { 560 kvfree(addr); 561 } 562 563 static inline void * 564 u_memcpya(uint64_t user, unsigned nmemb, unsigned size) 565 { 566 void *mem; 567 void __user *userptr = (void __force __user *)(uintptr_t)user; 568 569 size *= nmemb; 570 571 mem = kvmalloc(size, GFP_KERNEL); 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(err, 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(err, 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(err, 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(err, 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, false, false); 652 if (ret) { 653 NV_PRINTK(err, 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); 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->chid == 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(err, 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(err, 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(err, 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(err, 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(err, 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(err, 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(err, 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->client.device.info.chipset >= 0x25) { 769 ret = RING_SPACE(chan, req->nr_push * 2); 770 if (ret) { 771 NV_PRINTK(err, 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(err, 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(err, 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->client.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 long lret; 863 int ret; 864 865 gem = drm_gem_object_lookup(file_priv, req->handle); 866 if (!gem) 867 return -ENOENT; 868 nvbo = nouveau_gem_object(gem); 869 870 lret = reservation_object_wait_timeout_rcu(nvbo->bo.resv, write, true, 871 no_wait ? 0 : 30 * HZ); 872 if (!lret) 873 ret = -EBUSY; 874 else if (lret > 0) 875 ret = 0; 876 else 877 ret = lret; 878 879 nouveau_bo_sync_for_cpu(nvbo); 880 drm_gem_object_unreference_unlocked(gem); 881 882 return ret; 883 } 884 885 int 886 nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data, 887 struct drm_file *file_priv) 888 { 889 struct drm_nouveau_gem_cpu_fini *req = data; 890 struct drm_gem_object *gem; 891 struct nouveau_bo *nvbo; 892 893 gem = drm_gem_object_lookup(file_priv, req->handle); 894 if (!gem) 895 return -ENOENT; 896 nvbo = nouveau_gem_object(gem); 897 898 nouveau_bo_sync_for_device(nvbo); 899 drm_gem_object_unreference_unlocked(gem); 900 return 0; 901 } 902 903 int 904 nouveau_gem_ioctl_info(struct drm_device *dev, void *data, 905 struct drm_file *file_priv) 906 { 907 struct drm_nouveau_gem_info *req = data; 908 struct drm_gem_object *gem; 909 int ret; 910 911 gem = drm_gem_object_lookup(file_priv, req->handle); 912 if (!gem) 913 return -ENOENT; 914 915 ret = nouveau_gem_info(file_priv, gem, req); 916 drm_gem_object_unreference_unlocked(gem); 917 return ret; 918 } 919 920