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 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 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, true, 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, 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 drm_device *dev, int 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(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(dev, 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->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(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->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(dev, 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 struct drm_device *dev = chan->drm->dev; 372 int trycnt = 0; 373 int ret, i; 374 struct nouveau_bo *res_bo = NULL; 375 LIST_HEAD(gart_list); 376 LIST_HEAD(vram_list); 377 LIST_HEAD(both_list); 378 379 ww_acquire_init(&op->ticket, &reservation_ww_class); 380 retry: 381 if (++trycnt > 100000) { 382 NV_PRINTK(err, cli, "%s failed and gave up.\n", __func__); 383 return -EINVAL; 384 } 385 386 for (i = 0; i < nr_buffers; i++) { 387 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i]; 388 struct drm_gem_object *gem; 389 struct nouveau_bo *nvbo; 390 391 gem = drm_gem_object_lookup(dev, file_priv, b->handle); 392 if (!gem) { 393 NV_PRINTK(err, cli, "Unknown handle 0x%08x\n", b->handle); 394 ret = -ENOENT; 395 break; 396 } 397 nvbo = nouveau_gem_object(gem); 398 if (nvbo == res_bo) { 399 res_bo = NULL; 400 drm_gem_object_unreference_unlocked(gem); 401 continue; 402 } 403 404 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) { 405 NV_PRINTK(err, cli, "multiple instances of buffer %d on " 406 "validation list\n", b->handle); 407 drm_gem_object_unreference_unlocked(gem); 408 ret = -EINVAL; 409 break; 410 } 411 412 ret = ttm_bo_reserve(&nvbo->bo, true, false, true, &op->ticket); 413 if (ret) { 414 list_splice_tail_init(&vram_list, &op->list); 415 list_splice_tail_init(&gart_list, &op->list); 416 list_splice_tail_init(&both_list, &op->list); 417 validate_fini_no_ticket(op, NULL, NULL); 418 if (unlikely(ret == -EDEADLK)) { 419 ret = ttm_bo_reserve_slowpath(&nvbo->bo, true, 420 &op->ticket); 421 if (!ret) 422 res_bo = nvbo; 423 } 424 if (unlikely(ret)) { 425 if (ret != -ERESTARTSYS) 426 NV_PRINTK(err, cli, "fail reserve\n"); 427 break; 428 } 429 } 430 431 b->user_priv = (uint64_t)(unsigned long)nvbo; 432 nvbo->reserved_by = file_priv; 433 nvbo->pbbo_index = i; 434 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) && 435 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)) 436 list_add_tail(&nvbo->entry, &both_list); 437 else 438 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) 439 list_add_tail(&nvbo->entry, &vram_list); 440 else 441 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART) 442 list_add_tail(&nvbo->entry, &gart_list); 443 else { 444 NV_PRINTK(err, cli, "invalid valid domains: 0x%08x\n", 445 b->valid_domains); 446 list_add_tail(&nvbo->entry, &both_list); 447 ret = -EINVAL; 448 break; 449 } 450 if (nvbo == res_bo) 451 goto retry; 452 } 453 454 ww_acquire_done(&op->ticket); 455 list_splice_tail(&vram_list, &op->list); 456 list_splice_tail(&gart_list, &op->list); 457 list_splice_tail(&both_list, &op->list); 458 if (ret) 459 validate_fini(op, NULL, NULL); 460 return ret; 461 462 } 463 464 static int 465 validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli, 466 struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo, 467 uint64_t user_pbbo_ptr) 468 { 469 struct nouveau_drm *drm = chan->drm; 470 struct drm_nouveau_gem_pushbuf_bo __user *upbbo = 471 (void __force __user *)(uintptr_t)user_pbbo_ptr; 472 struct nouveau_bo *nvbo; 473 int ret, relocs = 0; 474 475 list_for_each_entry(nvbo, list, entry) { 476 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index]; 477 478 ret = nouveau_gem_set_domain(&nvbo->gem, b->read_domains, 479 b->write_domains, 480 b->valid_domains); 481 if (unlikely(ret)) { 482 NV_PRINTK(err, cli, "fail set_domain\n"); 483 return ret; 484 } 485 486 ret = nouveau_bo_validate(nvbo, true, false); 487 if (unlikely(ret)) { 488 if (ret != -ERESTARTSYS) 489 NV_PRINTK(err, cli, "fail ttm_validate\n"); 490 return ret; 491 } 492 493 ret = nouveau_fence_sync(nvbo, chan, !!b->write_domains, true); 494 if (unlikely(ret)) { 495 if (ret != -ERESTARTSYS) 496 NV_PRINTK(err, cli, "fail post-validate sync\n"); 497 return ret; 498 } 499 500 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) { 501 if (nvbo->bo.offset == b->presumed.offset && 502 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM && 503 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) || 504 (nvbo->bo.mem.mem_type == TTM_PL_TT && 505 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART))) 506 continue; 507 508 if (nvbo->bo.mem.mem_type == TTM_PL_TT) 509 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART; 510 else 511 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM; 512 b->presumed.offset = nvbo->bo.offset; 513 b->presumed.valid = 0; 514 relocs++; 515 516 if (copy_to_user(&upbbo[nvbo->pbbo_index].presumed, 517 &b->presumed, sizeof(b->presumed))) 518 return -EFAULT; 519 } 520 } 521 522 return relocs; 523 } 524 525 static int 526 nouveau_gem_pushbuf_validate(struct nouveau_channel *chan, 527 struct drm_file *file_priv, 528 struct drm_nouveau_gem_pushbuf_bo *pbbo, 529 uint64_t user_buffers, int nr_buffers, 530 struct validate_op *op, int *apply_relocs) 531 { 532 struct nouveau_cli *cli = nouveau_cli(file_priv); 533 int ret; 534 535 INIT_LIST_HEAD(&op->list); 536 537 if (nr_buffers == 0) 538 return 0; 539 540 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op); 541 if (unlikely(ret)) { 542 if (ret != -ERESTARTSYS) 543 NV_PRINTK(err, cli, "validate_init\n"); 544 return ret; 545 } 546 547 ret = validate_list(chan, cli, &op->list, pbbo, user_buffers); 548 if (unlikely(ret < 0)) { 549 if (ret != -ERESTARTSYS) 550 NV_PRINTK(err, cli, "validating bo list\n"); 551 validate_fini(op, NULL, NULL); 552 return ret; 553 } 554 *apply_relocs = ret; 555 return 0; 556 } 557 558 static inline void 559 u_free(void *addr) 560 { 561 kvfree(addr); 562 } 563 564 static inline void * 565 u_memcpya(uint64_t user, unsigned nmemb, unsigned size) 566 { 567 void *mem; 568 void __user *userptr = (void __force __user *)(uintptr_t)user; 569 570 size *= nmemb; 571 572 mem = kmalloc(size, GFP_KERNEL | __GFP_NOWARN); 573 if (!mem) 574 mem = vmalloc(size); 575 if (!mem) 576 return ERR_PTR(-ENOMEM); 577 578 if (copy_from_user(mem, userptr, size)) { 579 u_free(mem); 580 return ERR_PTR(-EFAULT); 581 } 582 583 return mem; 584 } 585 586 static int 587 nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli, 588 struct drm_nouveau_gem_pushbuf *req, 589 struct drm_nouveau_gem_pushbuf_bo *bo) 590 { 591 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL; 592 int ret = 0; 593 unsigned i; 594 595 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc)); 596 if (IS_ERR(reloc)) 597 return PTR_ERR(reloc); 598 599 for (i = 0; i < req->nr_relocs; i++) { 600 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i]; 601 struct drm_nouveau_gem_pushbuf_bo *b; 602 struct nouveau_bo *nvbo; 603 uint32_t data; 604 605 if (unlikely(r->bo_index > req->nr_buffers)) { 606 NV_PRINTK(err, cli, "reloc bo index invalid\n"); 607 ret = -EINVAL; 608 break; 609 } 610 611 b = &bo[r->bo_index]; 612 if (b->presumed.valid) 613 continue; 614 615 if (unlikely(r->reloc_bo_index > req->nr_buffers)) { 616 NV_PRINTK(err, cli, "reloc container bo index invalid\n"); 617 ret = -EINVAL; 618 break; 619 } 620 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv; 621 622 if (unlikely(r->reloc_bo_offset + 4 > 623 nvbo->bo.mem.num_pages << PAGE_SHIFT)) { 624 NV_PRINTK(err, cli, "reloc outside of bo\n"); 625 ret = -EINVAL; 626 break; 627 } 628 629 if (!nvbo->kmap.virtual) { 630 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages, 631 &nvbo->kmap); 632 if (ret) { 633 NV_PRINTK(err, cli, "failed kmap for reloc\n"); 634 break; 635 } 636 nvbo->validate_mapped = true; 637 } 638 639 if (r->flags & NOUVEAU_GEM_RELOC_LOW) 640 data = b->presumed.offset + r->data; 641 else 642 if (r->flags & NOUVEAU_GEM_RELOC_HIGH) 643 data = (b->presumed.offset + r->data) >> 32; 644 else 645 data = r->data; 646 647 if (r->flags & NOUVEAU_GEM_RELOC_OR) { 648 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART) 649 data |= r->tor; 650 else 651 data |= r->vor; 652 } 653 654 ret = ttm_bo_wait(&nvbo->bo, true, false, false); 655 if (ret) { 656 NV_PRINTK(err, cli, "reloc wait_idle failed: %d\n", ret); 657 break; 658 } 659 660 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data); 661 } 662 663 u_free(reloc); 664 return ret; 665 } 666 667 int 668 nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data, 669 struct drm_file *file_priv) 670 { 671 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv); 672 struct nouveau_cli *cli = nouveau_cli(file_priv); 673 struct nouveau_abi16_chan *temp; 674 struct nouveau_drm *drm = nouveau_drm(dev); 675 struct drm_nouveau_gem_pushbuf *req = data; 676 struct drm_nouveau_gem_pushbuf_push *push; 677 struct drm_nouveau_gem_pushbuf_bo *bo; 678 struct nouveau_channel *chan = NULL; 679 struct validate_op op; 680 struct nouveau_fence *fence = NULL; 681 int i, j, ret = 0, do_reloc = 0; 682 683 if (unlikely(!abi16)) 684 return -ENOMEM; 685 686 list_for_each_entry(temp, &abi16->channels, head) { 687 if (temp->chan->chid == req->channel) { 688 chan = temp->chan; 689 break; 690 } 691 } 692 693 if (!chan) 694 return nouveau_abi16_put(abi16, -ENOENT); 695 696 req->vram_available = drm->gem.vram_available; 697 req->gart_available = drm->gem.gart_available; 698 if (unlikely(req->nr_push == 0)) 699 goto out_next; 700 701 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) { 702 NV_PRINTK(err, cli, "pushbuf push count exceeds limit: %d max %d\n", 703 req->nr_push, NOUVEAU_GEM_MAX_PUSH); 704 return nouveau_abi16_put(abi16, -EINVAL); 705 } 706 707 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) { 708 NV_PRINTK(err, cli, "pushbuf bo count exceeds limit: %d max %d\n", 709 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS); 710 return nouveau_abi16_put(abi16, -EINVAL); 711 } 712 713 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) { 714 NV_PRINTK(err, cli, "pushbuf reloc count exceeds limit: %d max %d\n", 715 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS); 716 return nouveau_abi16_put(abi16, -EINVAL); 717 } 718 719 push = u_memcpya(req->push, req->nr_push, sizeof(*push)); 720 if (IS_ERR(push)) 721 return nouveau_abi16_put(abi16, PTR_ERR(push)); 722 723 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo)); 724 if (IS_ERR(bo)) { 725 u_free(push); 726 return nouveau_abi16_put(abi16, PTR_ERR(bo)); 727 } 728 729 /* Ensure all push buffers are on validate list */ 730 for (i = 0; i < req->nr_push; i++) { 731 if (push[i].bo_index >= req->nr_buffers) { 732 NV_PRINTK(err, cli, "push %d buffer not in list\n", i); 733 ret = -EINVAL; 734 goto out_prevalid; 735 } 736 } 737 738 /* Validate buffer list */ 739 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers, 740 req->nr_buffers, &op, &do_reloc); 741 if (ret) { 742 if (ret != -ERESTARTSYS) 743 NV_PRINTK(err, cli, "validate: %d\n", ret); 744 goto out_prevalid; 745 } 746 747 /* Apply any relocations that are required */ 748 if (do_reloc) { 749 ret = nouveau_gem_pushbuf_reloc_apply(cli, req, bo); 750 if (ret) { 751 NV_PRINTK(err, cli, "reloc apply: %d\n", ret); 752 goto out; 753 } 754 } 755 756 if (chan->dma.ib_max) { 757 ret = nouveau_dma_wait(chan, req->nr_push + 1, 16); 758 if (ret) { 759 NV_PRINTK(err, cli, "nv50cal_space: %d\n", ret); 760 goto out; 761 } 762 763 for (i = 0; i < req->nr_push; i++) { 764 struct nouveau_bo *nvbo = (void *)(unsigned long) 765 bo[push[i].bo_index].user_priv; 766 767 nv50_dma_push(chan, nvbo, push[i].offset, 768 push[i].length); 769 } 770 } else 771 if (drm->device.info.chipset >= 0x25) { 772 ret = RING_SPACE(chan, req->nr_push * 2); 773 if (ret) { 774 NV_PRINTK(err, cli, "cal_space: %d\n", ret); 775 goto out; 776 } 777 778 for (i = 0; i < req->nr_push; i++) { 779 struct nouveau_bo *nvbo = (void *)(unsigned long) 780 bo[push[i].bo_index].user_priv; 781 782 OUT_RING(chan, (nvbo->bo.offset + push[i].offset) | 2); 783 OUT_RING(chan, 0); 784 } 785 } else { 786 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS)); 787 if (ret) { 788 NV_PRINTK(err, cli, "jmp_space: %d\n", ret); 789 goto out; 790 } 791 792 for (i = 0; i < req->nr_push; i++) { 793 struct nouveau_bo *nvbo = (void *)(unsigned long) 794 bo[push[i].bo_index].user_priv; 795 uint32_t cmd; 796 797 cmd = chan->push.vma.offset + ((chan->dma.cur + 2) << 2); 798 cmd |= 0x20000000; 799 if (unlikely(cmd != req->suffix0)) { 800 if (!nvbo->kmap.virtual) { 801 ret = ttm_bo_kmap(&nvbo->bo, 0, 802 nvbo->bo.mem. 803 num_pages, 804 &nvbo->kmap); 805 if (ret) { 806 WIND_RING(chan); 807 goto out; 808 } 809 nvbo->validate_mapped = true; 810 } 811 812 nouveau_bo_wr32(nvbo, (push[i].offset + 813 push[i].length - 8) / 4, cmd); 814 } 815 816 OUT_RING(chan, 0x20000000 | 817 (nvbo->bo.offset + push[i].offset)); 818 OUT_RING(chan, 0); 819 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++) 820 OUT_RING(chan, 0); 821 } 822 } 823 824 ret = nouveau_fence_new(chan, false, &fence); 825 if (ret) { 826 NV_PRINTK(err, cli, "error fencing pushbuf: %d\n", ret); 827 WIND_RING(chan); 828 goto out; 829 } 830 831 out: 832 validate_fini(&op, fence, bo); 833 nouveau_fence_unref(&fence); 834 835 out_prevalid: 836 u_free(bo); 837 u_free(push); 838 839 out_next: 840 if (chan->dma.ib_max) { 841 req->suffix0 = 0x00000000; 842 req->suffix1 = 0x00000000; 843 } else 844 if (drm->device.info.chipset >= 0x25) { 845 req->suffix0 = 0x00020000; 846 req->suffix1 = 0x00000000; 847 } else { 848 req->suffix0 = 0x20000000 | 849 (chan->push.vma.offset + ((chan->dma.cur + 2) << 2)); 850 req->suffix1 = 0x00000000; 851 } 852 853 return nouveau_abi16_put(abi16, ret); 854 } 855 856 int 857 nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data, 858 struct drm_file *file_priv) 859 { 860 struct drm_nouveau_gem_cpu_prep *req = data; 861 struct drm_gem_object *gem; 862 struct nouveau_bo *nvbo; 863 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT); 864 bool write = !!(req->flags & NOUVEAU_GEM_CPU_PREP_WRITE); 865 int ret; 866 867 gem = drm_gem_object_lookup(dev, file_priv, req->handle); 868 if (!gem) 869 return -ENOENT; 870 nvbo = nouveau_gem_object(gem); 871 872 if (no_wait) 873 ret = reservation_object_test_signaled_rcu(nvbo->bo.resv, write) ? 0 : -EBUSY; 874 else { 875 long lret; 876 877 lret = reservation_object_wait_timeout_rcu(nvbo->bo.resv, write, true, 30 * HZ); 878 if (!lret) 879 ret = -EBUSY; 880 else if (lret > 0) 881 ret = 0; 882 else 883 ret = lret; 884 } 885 nouveau_bo_sync_for_cpu(nvbo); 886 drm_gem_object_unreference_unlocked(gem); 887 888 return ret; 889 } 890 891 int 892 nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data, 893 struct drm_file *file_priv) 894 { 895 struct drm_nouveau_gem_cpu_fini *req = data; 896 struct drm_gem_object *gem; 897 struct nouveau_bo *nvbo; 898 899 gem = drm_gem_object_lookup(dev, file_priv, req->handle); 900 if (!gem) 901 return -ENOENT; 902 nvbo = nouveau_gem_object(gem); 903 904 nouveau_bo_sync_for_device(nvbo); 905 drm_gem_object_unreference_unlocked(gem); 906 return 0; 907 } 908 909 int 910 nouveau_gem_ioctl_info(struct drm_device *dev, void *data, 911 struct drm_file *file_priv) 912 { 913 struct drm_nouveau_gem_info *req = data; 914 struct drm_gem_object *gem; 915 int ret; 916 917 gem = drm_gem_object_lookup(dev, file_priv, req->handle); 918 if (!gem) 919 return -ENOENT; 920 921 ret = nouveau_gem_info(file_priv, gem, req); 922 drm_gem_object_unreference_unlocked(gem); 923 return ret; 924 } 925 926