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 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 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 int trycnt = 0; 372 int ret, 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->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 = kmalloc(size, GFP_KERNEL | __GFP_NOWARN); 572 if (!mem) 573 mem = vmalloc(size); 574 if (!mem) 575 return ERR_PTR(-ENOMEM); 576 577 if (copy_from_user(mem, userptr, size)) { 578 u_free(mem); 579 return ERR_PTR(-EFAULT); 580 } 581 582 return mem; 583 } 584 585 static int 586 nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli, 587 struct drm_nouveau_gem_pushbuf *req, 588 struct drm_nouveau_gem_pushbuf_bo *bo) 589 { 590 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL; 591 int ret = 0; 592 unsigned i; 593 594 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc)); 595 if (IS_ERR(reloc)) 596 return PTR_ERR(reloc); 597 598 for (i = 0; i < req->nr_relocs; i++) { 599 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i]; 600 struct drm_nouveau_gem_pushbuf_bo *b; 601 struct nouveau_bo *nvbo; 602 uint32_t data; 603 604 if (unlikely(r->bo_index > req->nr_buffers)) { 605 NV_PRINTK(err, cli, "reloc bo index invalid\n"); 606 ret = -EINVAL; 607 break; 608 } 609 610 b = &bo[r->bo_index]; 611 if (b->presumed.valid) 612 continue; 613 614 if (unlikely(r->reloc_bo_index > req->nr_buffers)) { 615 NV_PRINTK(err, cli, "reloc container bo index invalid\n"); 616 ret = -EINVAL; 617 break; 618 } 619 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv; 620 621 if (unlikely(r->reloc_bo_offset + 4 > 622 nvbo->bo.mem.num_pages << PAGE_SHIFT)) { 623 NV_PRINTK(err, cli, "reloc outside of bo\n"); 624 ret = -EINVAL; 625 break; 626 } 627 628 if (!nvbo->kmap.virtual) { 629 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages, 630 &nvbo->kmap); 631 if (ret) { 632 NV_PRINTK(err, cli, "failed kmap for reloc\n"); 633 break; 634 } 635 nvbo->validate_mapped = true; 636 } 637 638 if (r->flags & NOUVEAU_GEM_RELOC_LOW) 639 data = b->presumed.offset + r->data; 640 else 641 if (r->flags & NOUVEAU_GEM_RELOC_HIGH) 642 data = (b->presumed.offset + r->data) >> 32; 643 else 644 data = r->data; 645 646 if (r->flags & NOUVEAU_GEM_RELOC_OR) { 647 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART) 648 data |= r->tor; 649 else 650 data |= r->vor; 651 } 652 653 ret = ttm_bo_wait(&nvbo->bo, false, false); 654 if (ret) { 655 NV_PRINTK(err, cli, "reloc wait_idle failed: %d\n", ret); 656 break; 657 } 658 659 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data); 660 } 661 662 u_free(reloc); 663 return ret; 664 } 665 666 int 667 nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data, 668 struct drm_file *file_priv) 669 { 670 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv); 671 struct nouveau_cli *cli = nouveau_cli(file_priv); 672 struct nouveau_abi16_chan *temp; 673 struct nouveau_drm *drm = nouveau_drm(dev); 674 struct drm_nouveau_gem_pushbuf *req = data; 675 struct drm_nouveau_gem_pushbuf_push *push; 676 struct drm_nouveau_gem_pushbuf_bo *bo; 677 struct nouveau_channel *chan = NULL; 678 struct validate_op op; 679 struct nouveau_fence *fence = NULL; 680 int i, j, ret = 0, do_reloc = 0; 681 682 if (unlikely(!abi16)) 683 return -ENOMEM; 684 685 list_for_each_entry(temp, &abi16->channels, head) { 686 if (temp->chan->chid == req->channel) { 687 chan = temp->chan; 688 break; 689 } 690 } 691 692 if (!chan) 693 return nouveau_abi16_put(abi16, -ENOENT); 694 695 req->vram_available = drm->gem.vram_available; 696 req->gart_available = drm->gem.gart_available; 697 if (unlikely(req->nr_push == 0)) 698 goto out_next; 699 700 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) { 701 NV_PRINTK(err, cli, "pushbuf push count exceeds limit: %d max %d\n", 702 req->nr_push, NOUVEAU_GEM_MAX_PUSH); 703 return nouveau_abi16_put(abi16, -EINVAL); 704 } 705 706 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) { 707 NV_PRINTK(err, cli, "pushbuf bo count exceeds limit: %d max %d\n", 708 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS); 709 return nouveau_abi16_put(abi16, -EINVAL); 710 } 711 712 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) { 713 NV_PRINTK(err, cli, "pushbuf reloc count exceeds limit: %d max %d\n", 714 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS); 715 return nouveau_abi16_put(abi16, -EINVAL); 716 } 717 718 push = u_memcpya(req->push, req->nr_push, sizeof(*push)); 719 if (IS_ERR(push)) 720 return nouveau_abi16_put(abi16, PTR_ERR(push)); 721 722 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo)); 723 if (IS_ERR(bo)) { 724 u_free(push); 725 return nouveau_abi16_put(abi16, PTR_ERR(bo)); 726 } 727 728 /* Ensure all push buffers are on validate list */ 729 for (i = 0; i < req->nr_push; i++) { 730 if (push[i].bo_index >= req->nr_buffers) { 731 NV_PRINTK(err, cli, "push %d buffer not in list\n", i); 732 ret = -EINVAL; 733 goto out_prevalid; 734 } 735 } 736 737 /* Validate buffer list */ 738 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers, 739 req->nr_buffers, &op, &do_reloc); 740 if (ret) { 741 if (ret != -ERESTARTSYS) 742 NV_PRINTK(err, cli, "validate: %d\n", ret); 743 goto out_prevalid; 744 } 745 746 /* Apply any relocations that are required */ 747 if (do_reloc) { 748 ret = nouveau_gem_pushbuf_reloc_apply(cli, req, bo); 749 if (ret) { 750 NV_PRINTK(err, cli, "reloc apply: %d\n", ret); 751 goto out; 752 } 753 } 754 755 if (chan->dma.ib_max) { 756 ret = nouveau_dma_wait(chan, req->nr_push + 1, 16); 757 if (ret) { 758 NV_PRINTK(err, cli, "nv50cal_space: %d\n", ret); 759 goto out; 760 } 761 762 for (i = 0; i < req->nr_push; i++) { 763 struct nouveau_bo *nvbo = (void *)(unsigned long) 764 bo[push[i].bo_index].user_priv; 765 766 nv50_dma_push(chan, nvbo, push[i].offset, 767 push[i].length); 768 } 769 } else 770 if (drm->device.info.chipset >= 0x25) { 771 ret = RING_SPACE(chan, req->nr_push * 2); 772 if (ret) { 773 NV_PRINTK(err, cli, "cal_space: %d\n", ret); 774 goto out; 775 } 776 777 for (i = 0; i < req->nr_push; i++) { 778 struct nouveau_bo *nvbo = (void *)(unsigned long) 779 bo[push[i].bo_index].user_priv; 780 781 OUT_RING(chan, (nvbo->bo.offset + push[i].offset) | 2); 782 OUT_RING(chan, 0); 783 } 784 } else { 785 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS)); 786 if (ret) { 787 NV_PRINTK(err, cli, "jmp_space: %d\n", ret); 788 goto out; 789 } 790 791 for (i = 0; i < req->nr_push; i++) { 792 struct nouveau_bo *nvbo = (void *)(unsigned long) 793 bo[push[i].bo_index].user_priv; 794 uint32_t cmd; 795 796 cmd = chan->push.vma.offset + ((chan->dma.cur + 2) << 2); 797 cmd |= 0x20000000; 798 if (unlikely(cmd != req->suffix0)) { 799 if (!nvbo->kmap.virtual) { 800 ret = ttm_bo_kmap(&nvbo->bo, 0, 801 nvbo->bo.mem. 802 num_pages, 803 &nvbo->kmap); 804 if (ret) { 805 WIND_RING(chan); 806 goto out; 807 } 808 nvbo->validate_mapped = true; 809 } 810 811 nouveau_bo_wr32(nvbo, (push[i].offset + 812 push[i].length - 8) / 4, cmd); 813 } 814 815 OUT_RING(chan, 0x20000000 | 816 (nvbo->bo.offset + push[i].offset)); 817 OUT_RING(chan, 0); 818 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++) 819 OUT_RING(chan, 0); 820 } 821 } 822 823 ret = nouveau_fence_new(chan, false, &fence); 824 if (ret) { 825 NV_PRINTK(err, cli, "error fencing pushbuf: %d\n", ret); 826 WIND_RING(chan); 827 goto out; 828 } 829 830 out: 831 validate_fini(&op, fence, bo); 832 nouveau_fence_unref(&fence); 833 834 out_prevalid: 835 u_free(bo); 836 u_free(push); 837 838 out_next: 839 if (chan->dma.ib_max) { 840 req->suffix0 = 0x00000000; 841 req->suffix1 = 0x00000000; 842 } else 843 if (drm->device.info.chipset >= 0x25) { 844 req->suffix0 = 0x00020000; 845 req->suffix1 = 0x00000000; 846 } else { 847 req->suffix0 = 0x20000000 | 848 (chan->push.vma.offset + ((chan->dma.cur + 2) << 2)); 849 req->suffix1 = 0x00000000; 850 } 851 852 return nouveau_abi16_put(abi16, ret); 853 } 854 855 int 856 nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data, 857 struct drm_file *file_priv) 858 { 859 struct drm_nouveau_gem_cpu_prep *req = data; 860 struct drm_gem_object *gem; 861 struct nouveau_bo *nvbo; 862 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT); 863 bool write = !!(req->flags & NOUVEAU_GEM_CPU_PREP_WRITE); 864 int ret; 865 866 gem = drm_gem_object_lookup(file_priv, req->handle); 867 if (!gem) 868 return -ENOENT; 869 nvbo = nouveau_gem_object(gem); 870 871 if (no_wait) 872 ret = reservation_object_test_signaled_rcu(nvbo->bo.resv, write) ? 0 : -EBUSY; 873 else { 874 long lret; 875 876 lret = reservation_object_wait_timeout_rcu(nvbo->bo.resv, write, true, 30 * HZ); 877 if (!lret) 878 ret = -EBUSY; 879 else if (lret > 0) 880 ret = 0; 881 else 882 ret = lret; 883 } 884 nouveau_bo_sync_for_cpu(nvbo); 885 drm_gem_object_unreference_unlocked(gem); 886 887 return ret; 888 } 889 890 int 891 nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data, 892 struct drm_file *file_priv) 893 { 894 struct drm_nouveau_gem_cpu_fini *req = data; 895 struct drm_gem_object *gem; 896 struct nouveau_bo *nvbo; 897 898 gem = drm_gem_object_lookup(file_priv, req->handle); 899 if (!gem) 900 return -ENOENT; 901 nvbo = nouveau_gem_object(gem); 902 903 nouveau_bo_sync_for_device(nvbo); 904 drm_gem_object_unreference_unlocked(gem); 905 return 0; 906 } 907 908 int 909 nouveau_gem_ioctl_info(struct drm_device *dev, void *data, 910 struct drm_file *file_priv) 911 { 912 struct drm_nouveau_gem_info *req = data; 913 struct drm_gem_object *gem; 914 int ret; 915 916 gem = drm_gem_object_lookup(file_priv, req->handle); 917 if (!gem) 918 return -ENOENT; 919 920 ret = nouveau_gem_info(file_priv, gem, req); 921 drm_gem_object_unreference_unlocked(gem); 922 return ret; 923 } 924 925