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 35void 36nouveau_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 61int 62nouveau_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 100out: 101 ttm_bo_unreserve(&nvbo->bo); 102 return ret; 103} 104 105static void 106nouveau_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 114static void 115nouveau_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 144void 145nouveau_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 175int 176nouveau_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 222static int 223nouveau_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 252int 253nouveau_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 *pfb = 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 (!pfb->memtype_valid(pfb, req->info.tile_flags)) { 264 NV_PRINTK(error, 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 286static int 287nouveau_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 324struct validate_op { 325 struct list_head list; 326 struct ww_acquire_ctx ticket; 327}; 328 329static void 330validate_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 355static void 356validate_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 363static int 364validate_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); 378retry: 379 if (++trycnt > 100000) { 380 NV_PRINTK(error, 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(error, 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(error, 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(error, 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(error, 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 462static int 463validate_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(error, 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(error, 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(error, 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 523static int 524nouveau_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(error, 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(error, cli, "validating bo list\n"); 549 validate_fini(op, NULL, NULL); 550 return ret; 551 } 552 *apply_relocs = ret; 553 return 0; 554} 555 556static inline void 557u_free(void *addr) 558{ 559 if (!is_vmalloc_addr(addr)) 560 kfree(addr); 561 else 562 vfree(addr); 563} 564 565static inline void * 566u_memcpya(uint64_t user, unsigned nmemb, unsigned size) 567{ 568 void *mem; 569 void __user *userptr = (void __force __user *)(uintptr_t)user; 570 571 size *= nmemb; 572 573 mem = kmalloc(size, GFP_KERNEL | __GFP_NOWARN); 574 if (!mem) 575 mem = vmalloc(size); 576 if (!mem) 577 return ERR_PTR(-ENOMEM); 578 579 if (copy_from_user(mem, userptr, size)) { 580 u_free(mem); 581 return ERR_PTR(-EFAULT); 582 } 583 584 return mem; 585} 586 587static int 588nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli, 589 struct drm_nouveau_gem_pushbuf *req, 590 struct drm_nouveau_gem_pushbuf_bo *bo) 591{ 592 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL; 593 int ret = 0; 594 unsigned i; 595 596 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc)); 597 if (IS_ERR(reloc)) 598 return PTR_ERR(reloc); 599 600 for (i = 0; i < req->nr_relocs; i++) { 601 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i]; 602 struct drm_nouveau_gem_pushbuf_bo *b; 603 struct nouveau_bo *nvbo; 604 uint32_t data; 605 606 if (unlikely(r->bo_index > req->nr_buffers)) { 607 NV_PRINTK(error, cli, "reloc bo index invalid\n"); 608 ret = -EINVAL; 609 break; 610 } 611 612 b = &bo[r->bo_index]; 613 if (b->presumed.valid) 614 continue; 615 616 if (unlikely(r->reloc_bo_index > req->nr_buffers)) { 617 NV_PRINTK(error, cli, "reloc container bo index invalid\n"); 618 ret = -EINVAL; 619 break; 620 } 621 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv; 622 623 if (unlikely(r->reloc_bo_offset + 4 > 624 nvbo->bo.mem.num_pages << PAGE_SHIFT)) { 625 NV_PRINTK(error, cli, "reloc outside of bo\n"); 626 ret = -EINVAL; 627 break; 628 } 629 630 if (!nvbo->kmap.virtual) { 631 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages, 632 &nvbo->kmap); 633 if (ret) { 634 NV_PRINTK(error, cli, "failed kmap for reloc\n"); 635 break; 636 } 637 nvbo->validate_mapped = true; 638 } 639 640 if (r->flags & NOUVEAU_GEM_RELOC_LOW) 641 data = b->presumed.offset + r->data; 642 else 643 if (r->flags & NOUVEAU_GEM_RELOC_HIGH) 644 data = (b->presumed.offset + r->data) >> 32; 645 else 646 data = r->data; 647 648 if (r->flags & NOUVEAU_GEM_RELOC_OR) { 649 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART) 650 data |= r->tor; 651 else 652 data |= r->vor; 653 } 654 655 ret = ttm_bo_wait(&nvbo->bo, true, false, false); 656 if (ret) { 657 NV_PRINTK(error, cli, "reloc wait_idle failed: %d\n", ret); 658 break; 659 } 660 661 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data); 662 } 663 664 u_free(reloc); 665 return ret; 666} 667 668int 669nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data, 670 struct drm_file *file_priv) 671{ 672 struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev); 673 struct nouveau_cli *cli = nouveau_cli(file_priv); 674 struct nouveau_abi16_chan *temp; 675 struct nouveau_drm *drm = nouveau_drm(dev); 676 struct drm_nouveau_gem_pushbuf *req = data; 677 struct drm_nouveau_gem_pushbuf_push *push; 678 struct drm_nouveau_gem_pushbuf_bo *bo; 679 struct nouveau_channel *chan = NULL; 680 struct validate_op op; 681 struct nouveau_fence *fence = NULL; 682 int i, j, ret = 0, do_reloc = 0; 683 684 if (unlikely(!abi16)) 685 return -ENOMEM; 686 687 list_for_each_entry(temp, &abi16->channels, head) { 688 if (temp->chan->object->handle == (NVDRM_CHAN | req->channel)) { 689 chan = temp->chan; 690 break; 691 } 692 } 693 694 if (!chan) 695 return nouveau_abi16_put(abi16, -ENOENT); 696 697 req->vram_available = drm->gem.vram_available; 698 req->gart_available = drm->gem.gart_available; 699 if (unlikely(req->nr_push == 0)) 700 goto out_next; 701 702 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) { 703 NV_PRINTK(error, cli, "pushbuf push count exceeds limit: %d max %d\n", 704 req->nr_push, NOUVEAU_GEM_MAX_PUSH); 705 return nouveau_abi16_put(abi16, -EINVAL); 706 } 707 708 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) { 709 NV_PRINTK(error, cli, "pushbuf bo count exceeds limit: %d max %d\n", 710 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS); 711 return nouveau_abi16_put(abi16, -EINVAL); 712 } 713 714 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) { 715 NV_PRINTK(error, cli, "pushbuf reloc count exceeds limit: %d max %d\n", 716 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS); 717 return nouveau_abi16_put(abi16, -EINVAL); 718 } 719 720 push = u_memcpya(req->push, req->nr_push, sizeof(*push)); 721 if (IS_ERR(push)) 722 return nouveau_abi16_put(abi16, PTR_ERR(push)); 723 724 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo)); 725 if (IS_ERR(bo)) { 726 u_free(push); 727 return nouveau_abi16_put(abi16, PTR_ERR(bo)); 728 } 729 730 /* Ensure all push buffers are on validate list */ 731 for (i = 0; i < req->nr_push; i++) { 732 if (push[i].bo_index >= req->nr_buffers) { 733 NV_PRINTK(error, cli, "push %d buffer not in list\n", i); 734 ret = -EINVAL; 735 goto out_prevalid; 736 } 737 } 738 739 /* Validate buffer list */ 740 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers, 741 req->nr_buffers, &op, &do_reloc); 742 if (ret) { 743 if (ret != -ERESTARTSYS) 744 NV_PRINTK(error, cli, "validate: %d\n", ret); 745 goto out_prevalid; 746 } 747 748 /* Apply any relocations that are required */ 749 if (do_reloc) { 750 ret = nouveau_gem_pushbuf_reloc_apply(cli, req, bo); 751 if (ret) { 752 NV_PRINTK(error, cli, "reloc apply: %d\n", ret); 753 goto out; 754 } 755 } 756 757 if (chan->dma.ib_max) { 758 ret = nouveau_dma_wait(chan, req->nr_push + 1, 16); 759 if (ret) { 760 NV_PRINTK(error, cli, "nv50cal_space: %d\n", ret); 761 goto out; 762 } 763 764 for (i = 0; i < req->nr_push; i++) { 765 struct nouveau_bo *nvbo = (void *)(unsigned long) 766 bo[push[i].bo_index].user_priv; 767 768 nv50_dma_push(chan, nvbo, push[i].offset, 769 push[i].length); 770 } 771 } else 772 if (drm->device.info.chipset >= 0x25) { 773 ret = RING_SPACE(chan, req->nr_push * 2); 774 if (ret) { 775 NV_PRINTK(error, cli, "cal_space: %d\n", ret); 776 goto out; 777 } 778 779 for (i = 0; i < req->nr_push; i++) { 780 struct nouveau_bo *nvbo = (void *)(unsigned long) 781 bo[push[i].bo_index].user_priv; 782 783 OUT_RING(chan, (nvbo->bo.offset + push[i].offset) | 2); 784 OUT_RING(chan, 0); 785 } 786 } else { 787 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS)); 788 if (ret) { 789 NV_PRINTK(error, cli, "jmp_space: %d\n", ret); 790 goto out; 791 } 792 793 for (i = 0; i < req->nr_push; i++) { 794 struct nouveau_bo *nvbo = (void *)(unsigned long) 795 bo[push[i].bo_index].user_priv; 796 uint32_t cmd; 797 798 cmd = chan->push.vma.offset + ((chan->dma.cur + 2) << 2); 799 cmd |= 0x20000000; 800 if (unlikely(cmd != req->suffix0)) { 801 if (!nvbo->kmap.virtual) { 802 ret = ttm_bo_kmap(&nvbo->bo, 0, 803 nvbo->bo.mem. 804 num_pages, 805 &nvbo->kmap); 806 if (ret) { 807 WIND_RING(chan); 808 goto out; 809 } 810 nvbo->validate_mapped = true; 811 } 812 813 nouveau_bo_wr32(nvbo, (push[i].offset + 814 push[i].length - 8) / 4, cmd); 815 } 816 817 OUT_RING(chan, 0x20000000 | 818 (nvbo->bo.offset + push[i].offset)); 819 OUT_RING(chan, 0); 820 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++) 821 OUT_RING(chan, 0); 822 } 823 } 824 825 ret = nouveau_fence_new(chan, false, &fence); 826 if (ret) { 827 NV_PRINTK(error, cli, "error fencing pushbuf: %d\n", ret); 828 WIND_RING(chan); 829 goto out; 830 } 831 832out: 833 validate_fini(&op, fence, bo); 834 nouveau_fence_unref(&fence); 835 836out_prevalid: 837 u_free(bo); 838 u_free(push); 839 840out_next: 841 if (chan->dma.ib_max) { 842 req->suffix0 = 0x00000000; 843 req->suffix1 = 0x00000000; 844 } else 845 if (drm->device.info.chipset >= 0x25) { 846 req->suffix0 = 0x00020000; 847 req->suffix1 = 0x00000000; 848 } else { 849 req->suffix0 = 0x20000000 | 850 (chan->push.vma.offset + ((chan->dma.cur + 2) << 2)); 851 req->suffix1 = 0x00000000; 852 } 853 854 return nouveau_abi16_put(abi16, ret); 855} 856 857int 858nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data, 859 struct drm_file *file_priv) 860{ 861 struct drm_nouveau_gem_cpu_prep *req = data; 862 struct drm_gem_object *gem; 863 struct nouveau_bo *nvbo; 864 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT); 865 bool write = !!(req->flags & NOUVEAU_GEM_CPU_PREP_WRITE); 866 int ret; 867 868 gem = drm_gem_object_lookup(dev, file_priv, req->handle); 869 if (!gem) 870 return -ENOENT; 871 nvbo = nouveau_gem_object(gem); 872 873 if (no_wait) 874 ret = reservation_object_test_signaled_rcu(nvbo->bo.resv, write) ? 0 : -EBUSY; 875 else { 876 long lret; 877 878 lret = reservation_object_wait_timeout_rcu(nvbo->bo.resv, write, true, 30 * HZ); 879 if (!lret) 880 ret = -EBUSY; 881 else if (lret > 0) 882 ret = 0; 883 else 884 ret = lret; 885 } 886 nouveau_bo_sync_for_cpu(nvbo); 887 drm_gem_object_unreference_unlocked(gem); 888 889 return ret; 890} 891 892int 893nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data, 894 struct drm_file *file_priv) 895{ 896 struct drm_nouveau_gem_cpu_fini *req = data; 897 struct drm_gem_object *gem; 898 struct nouveau_bo *nvbo; 899 900 gem = drm_gem_object_lookup(dev, file_priv, req->handle); 901 if (!gem) 902 return -ENOENT; 903 nvbo = nouveau_gem_object(gem); 904 905 nouveau_bo_sync_for_device(nvbo); 906 drm_gem_object_unreference_unlocked(gem); 907 return 0; 908} 909 910int 911nouveau_gem_ioctl_info(struct drm_device *dev, void *data, 912 struct drm_file *file_priv) 913{ 914 struct drm_nouveau_gem_info *req = data; 915 struct drm_gem_object *gem; 916 int ret; 917 918 gem = drm_gem_object_lookup(dev, file_priv, req->handle); 919 if (!gem) 920 return -ENOENT; 921 922 ret = nouveau_gem_info(file_priv, gem, req); 923 drm_gem_object_unreference_unlocked(gem); 924 return ret; 925} 926 927