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 (is_power_of_2(nvbo->valid_domains)) 231 rep->domain = nvbo->valid_domains; 232 else if (nvbo->bo.mem.mem_type == TTM_PL_TT) 233 rep->domain = NOUVEAU_GEM_DOMAIN_GART; 234 else 235 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM; 236 rep->offset = nvbo->bo.offset; 237 if (cli->vm) { 238 vma = nouveau_bo_vma_find(nvbo, cli->vm); 239 if (!vma) 240 return -EINVAL; 241 242 rep->offset = vma->offset; 243 } 244 245 rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT; 246 rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.vma_node); 247 rep->tile_mode = nvbo->tile_mode; 248 rep->tile_flags = nvbo->tile_flags; 249 return 0; 250 } 251 252 int 253 nouveau_gem_ioctl_new(struct drm_device *dev, void *data, 254 struct drm_file *file_priv) 255 { 256 struct nouveau_drm *drm = nouveau_drm(dev); 257 struct nouveau_cli *cli = nouveau_cli(file_priv); 258 struct nvkm_fb *fb = nvxx_fb(&drm->device); 259 struct drm_nouveau_gem_new *req = data; 260 struct nouveau_bo *nvbo = NULL; 261 int ret = 0; 262 263 if (!nvkm_fb_memtype_valid(fb, req->info.tile_flags)) { 264 NV_PRINTK(err, cli, "bad page flags: 0x%08x\n", req->info.tile_flags); 265 return -EINVAL; 266 } 267 268 ret = nouveau_gem_new(dev, req->info.size, req->align, 269 req->info.domain, req->info.tile_mode, 270 req->info.tile_flags, &nvbo); 271 if (ret) 272 return ret; 273 274 ret = drm_gem_handle_create(file_priv, &nvbo->gem, &req->info.handle); 275 if (ret == 0) { 276 ret = nouveau_gem_info(file_priv, &nvbo->gem, &req->info); 277 if (ret) 278 drm_gem_handle_delete(file_priv, req->info.handle); 279 } 280 281 /* drop reference from allocate - handle holds it now */ 282 drm_gem_object_unreference_unlocked(&nvbo->gem); 283 return ret; 284 } 285 286 static int 287 nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains, 288 uint32_t write_domains, uint32_t valid_domains) 289 { 290 struct nouveau_bo *nvbo = nouveau_gem_object(gem); 291 struct ttm_buffer_object *bo = &nvbo->bo; 292 uint32_t domains = valid_domains & nvbo->valid_domains & 293 (write_domains ? write_domains : read_domains); 294 uint32_t pref_flags = 0, valid_flags = 0; 295 296 if (!domains) 297 return -EINVAL; 298 299 if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) 300 valid_flags |= TTM_PL_FLAG_VRAM; 301 302 if (valid_domains & NOUVEAU_GEM_DOMAIN_GART) 303 valid_flags |= TTM_PL_FLAG_TT; 304 305 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) && 306 bo->mem.mem_type == TTM_PL_VRAM) 307 pref_flags |= TTM_PL_FLAG_VRAM; 308 309 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) && 310 bo->mem.mem_type == TTM_PL_TT) 311 pref_flags |= TTM_PL_FLAG_TT; 312 313 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM) 314 pref_flags |= TTM_PL_FLAG_VRAM; 315 316 else 317 pref_flags |= TTM_PL_FLAG_TT; 318 319 nouveau_bo_placement_set(nvbo, pref_flags, valid_flags); 320 321 return 0; 322 } 323 324 struct validate_op { 325 struct list_head list; 326 struct ww_acquire_ctx ticket; 327 }; 328 329 static void 330 validate_fini_no_ticket(struct validate_op *op, struct nouveau_fence *fence, 331 struct drm_nouveau_gem_pushbuf_bo *pbbo) 332 { 333 struct nouveau_bo *nvbo; 334 struct drm_nouveau_gem_pushbuf_bo *b; 335 336 while (!list_empty(&op->list)) { 337 nvbo = list_entry(op->list.next, struct nouveau_bo, entry); 338 b = &pbbo[nvbo->pbbo_index]; 339 340 if (likely(fence)) 341 nouveau_bo_fence(nvbo, fence, !!b->write_domains); 342 343 if (unlikely(nvbo->validate_mapped)) { 344 ttm_bo_kunmap(&nvbo->kmap); 345 nvbo->validate_mapped = false; 346 } 347 348 list_del(&nvbo->entry); 349 nvbo->reserved_by = NULL; 350 ttm_bo_unreserve_ticket(&nvbo->bo, &op->ticket); 351 drm_gem_object_unreference_unlocked(&nvbo->gem); 352 } 353 } 354 355 static void 356 validate_fini(struct validate_op *op, struct nouveau_fence *fence, 357 struct drm_nouveau_gem_pushbuf_bo *pbbo) 358 { 359 validate_fini_no_ticket(op, fence, pbbo); 360 ww_acquire_fini(&op->ticket); 361 } 362 363 static int 364 validate_init(struct nouveau_channel *chan, struct drm_file *file_priv, 365 struct drm_nouveau_gem_pushbuf_bo *pbbo, 366 int nr_buffers, struct validate_op *op) 367 { 368 struct nouveau_cli *cli = nouveau_cli(file_priv); 369 struct drm_device *dev = chan->drm->dev; 370 int trycnt = 0; 371 int ret, i; 372 struct nouveau_bo *res_bo = NULL; 373 LIST_HEAD(gart_list); 374 LIST_HEAD(vram_list); 375 LIST_HEAD(both_list); 376 377 ww_acquire_init(&op->ticket, &reservation_ww_class); 378 retry: 379 if (++trycnt > 100000) { 380 NV_PRINTK(err, cli, "%s failed and gave up.\n", __func__); 381 return -EINVAL; 382 } 383 384 for (i = 0; i < nr_buffers; i++) { 385 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i]; 386 struct drm_gem_object *gem; 387 struct nouveau_bo *nvbo; 388 389 gem = drm_gem_object_lookup(dev, file_priv, b->handle); 390 if (!gem) { 391 NV_PRINTK(err, cli, "Unknown handle 0x%08x\n", b->handle); 392 ret = -ENOENT; 393 break; 394 } 395 nvbo = nouveau_gem_object(gem); 396 if (nvbo == res_bo) { 397 res_bo = NULL; 398 drm_gem_object_unreference_unlocked(gem); 399 continue; 400 } 401 402 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) { 403 NV_PRINTK(err, cli, "multiple instances of buffer %d on " 404 "validation list\n", b->handle); 405 drm_gem_object_unreference_unlocked(gem); 406 ret = -EINVAL; 407 break; 408 } 409 410 ret = ttm_bo_reserve(&nvbo->bo, true, false, true, &op->ticket); 411 if (ret) { 412 list_splice_tail_init(&vram_list, &op->list); 413 list_splice_tail_init(&gart_list, &op->list); 414 list_splice_tail_init(&both_list, &op->list); 415 validate_fini_no_ticket(op, NULL, NULL); 416 if (unlikely(ret == -EDEADLK)) { 417 ret = ttm_bo_reserve_slowpath(&nvbo->bo, true, 418 &op->ticket); 419 if (!ret) 420 res_bo = nvbo; 421 } 422 if (unlikely(ret)) { 423 if (ret != -ERESTARTSYS) 424 NV_PRINTK(err, cli, "fail reserve\n"); 425 break; 426 } 427 } 428 429 b->user_priv = (uint64_t)(unsigned long)nvbo; 430 nvbo->reserved_by = file_priv; 431 nvbo->pbbo_index = i; 432 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) && 433 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)) 434 list_add_tail(&nvbo->entry, &both_list); 435 else 436 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) 437 list_add_tail(&nvbo->entry, &vram_list); 438 else 439 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART) 440 list_add_tail(&nvbo->entry, &gart_list); 441 else { 442 NV_PRINTK(err, cli, "invalid valid domains: 0x%08x\n", 443 b->valid_domains); 444 list_add_tail(&nvbo->entry, &both_list); 445 ret = -EINVAL; 446 break; 447 } 448 if (nvbo == res_bo) 449 goto retry; 450 } 451 452 ww_acquire_done(&op->ticket); 453 list_splice_tail(&vram_list, &op->list); 454 list_splice_tail(&gart_list, &op->list); 455 list_splice_tail(&both_list, &op->list); 456 if (ret) 457 validate_fini(op, NULL, NULL); 458 return ret; 459 460 } 461 462 static int 463 validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli, 464 struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo, 465 uint64_t user_pbbo_ptr) 466 { 467 struct nouveau_drm *drm = chan->drm; 468 struct drm_nouveau_gem_pushbuf_bo __user *upbbo = 469 (void __force __user *)(uintptr_t)user_pbbo_ptr; 470 struct nouveau_bo *nvbo; 471 int ret, relocs = 0; 472 473 list_for_each_entry(nvbo, list, entry) { 474 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index]; 475 476 ret = nouveau_gem_set_domain(&nvbo->gem, b->read_domains, 477 b->write_domains, 478 b->valid_domains); 479 if (unlikely(ret)) { 480 NV_PRINTK(err, cli, "fail set_domain\n"); 481 return ret; 482 } 483 484 ret = nouveau_bo_validate(nvbo, true, false); 485 if (unlikely(ret)) { 486 if (ret != -ERESTARTSYS) 487 NV_PRINTK(err, cli, "fail ttm_validate\n"); 488 return ret; 489 } 490 491 ret = nouveau_fence_sync(nvbo, chan, !!b->write_domains, true); 492 if (unlikely(ret)) { 493 if (ret != -ERESTARTSYS) 494 NV_PRINTK(err, cli, "fail post-validate sync\n"); 495 return ret; 496 } 497 498 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) { 499 if (nvbo->bo.offset == b->presumed.offset && 500 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM && 501 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) || 502 (nvbo->bo.mem.mem_type == TTM_PL_TT && 503 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART))) 504 continue; 505 506 if (nvbo->bo.mem.mem_type == TTM_PL_TT) 507 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART; 508 else 509 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM; 510 b->presumed.offset = nvbo->bo.offset; 511 b->presumed.valid = 0; 512 relocs++; 513 514 if (copy_to_user(&upbbo[nvbo->pbbo_index].presumed, 515 &b->presumed, sizeof(b->presumed))) 516 return -EFAULT; 517 } 518 } 519 520 return relocs; 521 } 522 523 static int 524 nouveau_gem_pushbuf_validate(struct nouveau_channel *chan, 525 struct drm_file *file_priv, 526 struct drm_nouveau_gem_pushbuf_bo *pbbo, 527 uint64_t user_buffers, int nr_buffers, 528 struct validate_op *op, int *apply_relocs) 529 { 530 struct nouveau_cli *cli = nouveau_cli(file_priv); 531 int ret; 532 533 INIT_LIST_HEAD(&op->list); 534 535 if (nr_buffers == 0) 536 return 0; 537 538 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op); 539 if (unlikely(ret)) { 540 if (ret != -ERESTARTSYS) 541 NV_PRINTK(err, cli, "validate_init\n"); 542 return ret; 543 } 544 545 ret = validate_list(chan, cli, &op->list, pbbo, user_buffers); 546 if (unlikely(ret < 0)) { 547 if (ret != -ERESTARTSYS) 548 NV_PRINTK(err, cli, "validating bo list\n"); 549 validate_fini(op, NULL, NULL); 550 return ret; 551 } 552 *apply_relocs = ret; 553 return 0; 554 } 555 556 static inline void 557 u_free(void *addr) 558 { 559 kvfree(addr); 560 } 561 562 static inline void * 563 u_memcpya(uint64_t user, unsigned nmemb, unsigned size) 564 { 565 void *mem; 566 void __user *userptr = (void __force __user *)(uintptr_t)user; 567 568 size *= nmemb; 569 570 mem = kmalloc(size, GFP_KERNEL | __GFP_NOWARN); 571 if (!mem) 572 mem = vmalloc(size); 573 if (!mem) 574 return ERR_PTR(-ENOMEM); 575 576 if (copy_from_user(mem, userptr, size)) { 577 u_free(mem); 578 return ERR_PTR(-EFAULT); 579 } 580 581 return mem; 582 } 583 584 static int 585 nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli, 586 struct drm_nouveau_gem_pushbuf *req, 587 struct drm_nouveau_gem_pushbuf_bo *bo) 588 { 589 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL; 590 int ret = 0; 591 unsigned i; 592 593 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc)); 594 if (IS_ERR(reloc)) 595 return PTR_ERR(reloc); 596 597 for (i = 0; i < req->nr_relocs; i++) { 598 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i]; 599 struct drm_nouveau_gem_pushbuf_bo *b; 600 struct nouveau_bo *nvbo; 601 uint32_t data; 602 603 if (unlikely(r->bo_index > req->nr_buffers)) { 604 NV_PRINTK(err, cli, "reloc bo index invalid\n"); 605 ret = -EINVAL; 606 break; 607 } 608 609 b = &bo[r->bo_index]; 610 if (b->presumed.valid) 611 continue; 612 613 if (unlikely(r->reloc_bo_index > req->nr_buffers)) { 614 NV_PRINTK(err, cli, "reloc container bo index invalid\n"); 615 ret = -EINVAL; 616 break; 617 } 618 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv; 619 620 if (unlikely(r->reloc_bo_offset + 4 > 621 nvbo->bo.mem.num_pages << PAGE_SHIFT)) { 622 NV_PRINTK(err, cli, "reloc outside of bo\n"); 623 ret = -EINVAL; 624 break; 625 } 626 627 if (!nvbo->kmap.virtual) { 628 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages, 629 &nvbo->kmap); 630 if (ret) { 631 NV_PRINTK(err, cli, "failed kmap for reloc\n"); 632 break; 633 } 634 nvbo->validate_mapped = true; 635 } 636 637 if (r->flags & NOUVEAU_GEM_RELOC_LOW) 638 data = b->presumed.offset + r->data; 639 else 640 if (r->flags & NOUVEAU_GEM_RELOC_HIGH) 641 data = (b->presumed.offset + r->data) >> 32; 642 else 643 data = r->data; 644 645 if (r->flags & NOUVEAU_GEM_RELOC_OR) { 646 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART) 647 data |= r->tor; 648 else 649 data |= r->vor; 650 } 651 652 ret = ttm_bo_wait(&nvbo->bo, true, false, false); 653 if (ret) { 654 NV_PRINTK(err, cli, "reloc wait_idle failed: %d\n", ret); 655 break; 656 } 657 658 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data); 659 } 660 661 u_free(reloc); 662 return ret; 663 } 664 665 int 666 nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data, 667 struct drm_file *file_priv) 668 { 669 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev); 670 struct nouveau_cli *cli = nouveau_cli(file_priv); 671 struct nouveau_abi16_chan *temp; 672 struct nouveau_drm *drm = nouveau_drm(dev); 673 struct drm_nouveau_gem_pushbuf *req = data; 674 struct drm_nouveau_gem_pushbuf_push *push; 675 struct drm_nouveau_gem_pushbuf_bo *bo; 676 struct nouveau_channel *chan = NULL; 677 struct validate_op op; 678 struct nouveau_fence *fence = NULL; 679 int i, j, ret = 0, do_reloc = 0; 680 681 if (unlikely(!abi16)) 682 return -ENOMEM; 683 684 list_for_each_entry(temp, &abi16->channels, head) { 685 if (temp->chan->user.handle == (NVDRM_CHAN | req->channel)) { 686 chan = temp->chan; 687 break; 688 } 689 } 690 691 if (!chan) 692 return nouveau_abi16_put(abi16, -ENOENT); 693 694 req->vram_available = drm->gem.vram_available; 695 req->gart_available = drm->gem.gart_available; 696 if (unlikely(req->nr_push == 0)) 697 goto out_next; 698 699 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) { 700 NV_PRINTK(err, cli, "pushbuf push count exceeds limit: %d max %d\n", 701 req->nr_push, NOUVEAU_GEM_MAX_PUSH); 702 return nouveau_abi16_put(abi16, -EINVAL); 703 } 704 705 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) { 706 NV_PRINTK(err, cli, "pushbuf bo count exceeds limit: %d max %d\n", 707 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS); 708 return nouveau_abi16_put(abi16, -EINVAL); 709 } 710 711 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) { 712 NV_PRINTK(err, cli, "pushbuf reloc count exceeds limit: %d max %d\n", 713 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS); 714 return nouveau_abi16_put(abi16, -EINVAL); 715 } 716 717 push = u_memcpya(req->push, req->nr_push, sizeof(*push)); 718 if (IS_ERR(push)) 719 return nouveau_abi16_put(abi16, PTR_ERR(push)); 720 721 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo)); 722 if (IS_ERR(bo)) { 723 u_free(push); 724 return nouveau_abi16_put(abi16, PTR_ERR(bo)); 725 } 726 727 /* Ensure all push buffers are on validate list */ 728 for (i = 0; i < req->nr_push; i++) { 729 if (push[i].bo_index >= req->nr_buffers) { 730 NV_PRINTK(err, cli, "push %d buffer not in list\n", i); 731 ret = -EINVAL; 732 goto out_prevalid; 733 } 734 } 735 736 /* Validate buffer list */ 737 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers, 738 req->nr_buffers, &op, &do_reloc); 739 if (ret) { 740 if (ret != -ERESTARTSYS) 741 NV_PRINTK(err, cli, "validate: %d\n", ret); 742 goto out_prevalid; 743 } 744 745 /* Apply any relocations that are required */ 746 if (do_reloc) { 747 ret = nouveau_gem_pushbuf_reloc_apply(cli, req, bo); 748 if (ret) { 749 NV_PRINTK(err, cli, "reloc apply: %d\n", ret); 750 goto out; 751 } 752 } 753 754 if (chan->dma.ib_max) { 755 ret = nouveau_dma_wait(chan, req->nr_push + 1, 16); 756 if (ret) { 757 NV_PRINTK(err, cli, "nv50cal_space: %d\n", ret); 758 goto out; 759 } 760 761 for (i = 0; i < req->nr_push; i++) { 762 struct nouveau_bo *nvbo = (void *)(unsigned long) 763 bo[push[i].bo_index].user_priv; 764 765 nv50_dma_push(chan, nvbo, push[i].offset, 766 push[i].length); 767 } 768 } else 769 if (drm->device.info.chipset >= 0x25) { 770 ret = RING_SPACE(chan, req->nr_push * 2); 771 if (ret) { 772 NV_PRINTK(err, cli, "cal_space: %d\n", ret); 773 goto out; 774 } 775 776 for (i = 0; i < req->nr_push; i++) { 777 struct nouveau_bo *nvbo = (void *)(unsigned long) 778 bo[push[i].bo_index].user_priv; 779 780 OUT_RING(chan, (nvbo->bo.offset + push[i].offset) | 2); 781 OUT_RING(chan, 0); 782 } 783 } else { 784 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS)); 785 if (ret) { 786 NV_PRINTK(err, cli, "jmp_space: %d\n", ret); 787 goto out; 788 } 789 790 for (i = 0; i < req->nr_push; i++) { 791 struct nouveau_bo *nvbo = (void *)(unsigned long) 792 bo[push[i].bo_index].user_priv; 793 uint32_t cmd; 794 795 cmd = chan->push.vma.offset + ((chan->dma.cur + 2) << 2); 796 cmd |= 0x20000000; 797 if (unlikely(cmd != req->suffix0)) { 798 if (!nvbo->kmap.virtual) { 799 ret = ttm_bo_kmap(&nvbo->bo, 0, 800 nvbo->bo.mem. 801 num_pages, 802 &nvbo->kmap); 803 if (ret) { 804 WIND_RING(chan); 805 goto out; 806 } 807 nvbo->validate_mapped = true; 808 } 809 810 nouveau_bo_wr32(nvbo, (push[i].offset + 811 push[i].length - 8) / 4, cmd); 812 } 813 814 OUT_RING(chan, 0x20000000 | 815 (nvbo->bo.offset + push[i].offset)); 816 OUT_RING(chan, 0); 817 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++) 818 OUT_RING(chan, 0); 819 } 820 } 821 822 ret = nouveau_fence_new(chan, false, &fence); 823 if (ret) { 824 NV_PRINTK(err, cli, "error fencing pushbuf: %d\n", ret); 825 WIND_RING(chan); 826 goto out; 827 } 828 829 out: 830 validate_fini(&op, fence, bo); 831 nouveau_fence_unref(&fence); 832 833 out_prevalid: 834 u_free(bo); 835 u_free(push); 836 837 out_next: 838 if (chan->dma.ib_max) { 839 req->suffix0 = 0x00000000; 840 req->suffix1 = 0x00000000; 841 } else 842 if (drm->device.info.chipset >= 0x25) { 843 req->suffix0 = 0x00020000; 844 req->suffix1 = 0x00000000; 845 } else { 846 req->suffix0 = 0x20000000 | 847 (chan->push.vma.offset + ((chan->dma.cur + 2) << 2)); 848 req->suffix1 = 0x00000000; 849 } 850 851 return nouveau_abi16_put(abi16, ret); 852 } 853 854 int 855 nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data, 856 struct drm_file *file_priv) 857 { 858 struct drm_nouveau_gem_cpu_prep *req = data; 859 struct drm_gem_object *gem; 860 struct nouveau_bo *nvbo; 861 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT); 862 bool write = !!(req->flags & NOUVEAU_GEM_CPU_PREP_WRITE); 863 int ret; 864 865 gem = drm_gem_object_lookup(dev, file_priv, req->handle); 866 if (!gem) 867 return -ENOENT; 868 nvbo = nouveau_gem_object(gem); 869 870 if (no_wait) 871 ret = reservation_object_test_signaled_rcu(nvbo->bo.resv, write) ? 0 : -EBUSY; 872 else { 873 long lret; 874 875 lret = reservation_object_wait_timeout_rcu(nvbo->bo.resv, write, true, 30 * HZ); 876 if (!lret) 877 ret = -EBUSY; 878 else if (lret > 0) 879 ret = 0; 880 else 881 ret = lret; 882 } 883 nouveau_bo_sync_for_cpu(nvbo); 884 drm_gem_object_unreference_unlocked(gem); 885 886 return ret; 887 } 888 889 int 890 nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data, 891 struct drm_file *file_priv) 892 { 893 struct drm_nouveau_gem_cpu_fini *req = data; 894 struct drm_gem_object *gem; 895 struct nouveau_bo *nvbo; 896 897 gem = drm_gem_object_lookup(dev, file_priv, req->handle); 898 if (!gem) 899 return -ENOENT; 900 nvbo = nouveau_gem_object(gem); 901 902 nouveau_bo_sync_for_device(nvbo); 903 drm_gem_object_unreference_unlocked(gem); 904 return 0; 905 } 906 907 int 908 nouveau_gem_ioctl_info(struct drm_device *dev, void *data, 909 struct drm_file *file_priv) 910 { 911 struct drm_nouveau_gem_info *req = data; 912 struct drm_gem_object *gem; 913 int ret; 914 915 gem = drm_gem_object_lookup(dev, file_priv, req->handle); 916 if (!gem) 917 return -ENOENT; 918 919 ret = nouveau_gem_info(file_priv, gem, req); 920 drm_gem_object_unreference_unlocked(gem); 921 return ret; 922 } 923 924