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 #include "drmP.h" 27 #include "drm.h" 28 29 #include "nouveau_drv.h" 30 #include "nouveau_drm.h" 31 #include "nouveau_dma.h" 32 33 #define nouveau_gem_pushbuf_sync(chan) 0 34 35 int 36 nouveau_gem_object_new(struct drm_gem_object *gem) 37 { 38 return 0; 39 } 40 41 void 42 nouveau_gem_object_del(struct drm_gem_object *gem) 43 { 44 struct nouveau_bo *nvbo = gem->driver_private; 45 struct ttm_buffer_object *bo = &nvbo->bo; 46 47 if (!nvbo) 48 return; 49 nvbo->gem = NULL; 50 51 if (unlikely(nvbo->pin_refcnt)) { 52 nvbo->pin_refcnt = 1; 53 nouveau_bo_unpin(nvbo); 54 } 55 56 ttm_bo_unref(&bo); 57 58 drm_gem_object_release(gem); 59 kfree(gem); 60 } 61 62 int 63 nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv) 64 { 65 struct nouveau_fpriv *fpriv = nouveau_fpriv(file_priv); 66 struct nouveau_bo *nvbo = nouveau_gem_object(gem); 67 struct nouveau_vma *vma; 68 int ret; 69 70 if (!fpriv->vm) 71 return 0; 72 73 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0); 74 if (ret) 75 return ret; 76 77 vma = nouveau_bo_vma_find(nvbo, fpriv->vm); 78 if (!vma) { 79 vma = kzalloc(sizeof(*vma), GFP_KERNEL); 80 if (!vma) { 81 ret = -ENOMEM; 82 goto out; 83 } 84 85 ret = nouveau_bo_vma_add(nvbo, fpriv->vm, vma); 86 if (ret) { 87 kfree(vma); 88 goto out; 89 } 90 } else { 91 vma->refcount++; 92 } 93 94 out: 95 ttm_bo_unreserve(&nvbo->bo); 96 return ret; 97 } 98 99 void 100 nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv) 101 { 102 struct nouveau_fpriv *fpriv = nouveau_fpriv(file_priv); 103 struct nouveau_bo *nvbo = nouveau_gem_object(gem); 104 struct nouveau_vma *vma; 105 int ret; 106 107 if (!fpriv->vm) 108 return; 109 110 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0); 111 if (ret) 112 return; 113 114 vma = nouveau_bo_vma_find(nvbo, fpriv->vm); 115 if (vma) { 116 if (--vma->refcount == 0) { 117 nouveau_bo_vma_del(nvbo, vma); 118 kfree(vma); 119 } 120 } 121 ttm_bo_unreserve(&nvbo->bo); 122 } 123 124 int 125 nouveau_gem_new(struct drm_device *dev, int size, int align, uint32_t domain, 126 uint32_t tile_mode, uint32_t tile_flags, 127 struct nouveau_bo **pnvbo) 128 { 129 struct drm_nouveau_private *dev_priv = dev->dev_private; 130 struct nouveau_bo *nvbo; 131 u32 flags = 0; 132 int ret; 133 134 if (domain & NOUVEAU_GEM_DOMAIN_VRAM) 135 flags |= TTM_PL_FLAG_VRAM; 136 if (domain & NOUVEAU_GEM_DOMAIN_GART) 137 flags |= TTM_PL_FLAG_TT; 138 if (!flags || domain & NOUVEAU_GEM_DOMAIN_CPU) 139 flags |= TTM_PL_FLAG_SYSTEM; 140 141 ret = nouveau_bo_new(dev, size, align, flags, tile_mode, 142 tile_flags, pnvbo); 143 if (ret) 144 return ret; 145 nvbo = *pnvbo; 146 147 /* we restrict allowed domains on nv50+ to only the types 148 * that were requested at creation time. not possibly on 149 * earlier chips without busting the ABI. 150 */ 151 nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM | 152 NOUVEAU_GEM_DOMAIN_GART; 153 if (dev_priv->card_type >= NV_50) 154 nvbo->valid_domains &= domain; 155 156 nvbo->gem = drm_gem_object_alloc(dev, nvbo->bo.mem.size); 157 if (!nvbo->gem) { 158 nouveau_bo_ref(NULL, pnvbo); 159 return -ENOMEM; 160 } 161 162 nvbo->bo.persistent_swap_storage = nvbo->gem->filp; 163 nvbo->gem->driver_private = nvbo; 164 return 0; 165 } 166 167 static int 168 nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem, 169 struct drm_nouveau_gem_info *rep) 170 { 171 struct nouveau_fpriv *fpriv = nouveau_fpriv(file_priv); 172 struct nouveau_bo *nvbo = nouveau_gem_object(gem); 173 struct nouveau_vma *vma; 174 175 if (nvbo->bo.mem.mem_type == TTM_PL_TT) 176 rep->domain = NOUVEAU_GEM_DOMAIN_GART; 177 else 178 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM; 179 180 rep->offset = nvbo->bo.offset; 181 if (fpriv->vm) { 182 vma = nouveau_bo_vma_find(nvbo, fpriv->vm); 183 if (!vma) 184 return -EINVAL; 185 186 rep->offset = vma->offset; 187 } 188 189 rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT; 190 rep->map_handle = nvbo->bo.addr_space_offset; 191 rep->tile_mode = nvbo->tile_mode; 192 rep->tile_flags = nvbo->tile_flags; 193 return 0; 194 } 195 196 int 197 nouveau_gem_ioctl_new(struct drm_device *dev, void *data, 198 struct drm_file *file_priv) 199 { 200 struct drm_nouveau_private *dev_priv = dev->dev_private; 201 struct drm_nouveau_gem_new *req = data; 202 struct nouveau_bo *nvbo = NULL; 203 int ret = 0; 204 205 if (unlikely(dev_priv->ttm.bdev.dev_mapping == NULL)) 206 dev_priv->ttm.bdev.dev_mapping = dev_priv->dev->dev_mapping; 207 208 if (!dev_priv->engine.vram.flags_valid(dev, req->info.tile_flags)) { 209 NV_ERROR(dev, "bad page flags: 0x%08x\n", req->info.tile_flags); 210 return -EINVAL; 211 } 212 213 ret = nouveau_gem_new(dev, req->info.size, req->align, 214 req->info.domain, req->info.tile_mode, 215 req->info.tile_flags, &nvbo); 216 if (ret) 217 return ret; 218 219 ret = drm_gem_handle_create(file_priv, nvbo->gem, &req->info.handle); 220 if (ret == 0) { 221 ret = nouveau_gem_info(file_priv, nvbo->gem, &req->info); 222 if (ret) 223 drm_gem_handle_delete(file_priv, req->info.handle); 224 } 225 226 /* drop reference from allocate - handle holds it now */ 227 drm_gem_object_unreference_unlocked(nvbo->gem); 228 return ret; 229 } 230 231 static int 232 nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains, 233 uint32_t write_domains, uint32_t valid_domains) 234 { 235 struct nouveau_bo *nvbo = gem->driver_private; 236 struct ttm_buffer_object *bo = &nvbo->bo; 237 uint32_t domains = valid_domains & nvbo->valid_domains & 238 (write_domains ? write_domains : read_domains); 239 uint32_t pref_flags = 0, valid_flags = 0; 240 241 if (!domains) 242 return -EINVAL; 243 244 if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) 245 valid_flags |= TTM_PL_FLAG_VRAM; 246 247 if (valid_domains & NOUVEAU_GEM_DOMAIN_GART) 248 valid_flags |= TTM_PL_FLAG_TT; 249 250 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) && 251 bo->mem.mem_type == TTM_PL_VRAM) 252 pref_flags |= TTM_PL_FLAG_VRAM; 253 254 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) && 255 bo->mem.mem_type == TTM_PL_TT) 256 pref_flags |= TTM_PL_FLAG_TT; 257 258 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM) 259 pref_flags |= TTM_PL_FLAG_VRAM; 260 261 else 262 pref_flags |= TTM_PL_FLAG_TT; 263 264 nouveau_bo_placement_set(nvbo, pref_flags, valid_flags); 265 266 return 0; 267 } 268 269 struct validate_op { 270 struct list_head vram_list; 271 struct list_head gart_list; 272 struct list_head both_list; 273 }; 274 275 static void 276 validate_fini_list(struct list_head *list, struct nouveau_fence *fence) 277 { 278 struct list_head *entry, *tmp; 279 struct nouveau_bo *nvbo; 280 281 list_for_each_safe(entry, tmp, list) { 282 nvbo = list_entry(entry, struct nouveau_bo, entry); 283 284 nouveau_bo_fence(nvbo, fence); 285 286 if (unlikely(nvbo->validate_mapped)) { 287 ttm_bo_kunmap(&nvbo->kmap); 288 nvbo->validate_mapped = false; 289 } 290 291 list_del(&nvbo->entry); 292 nvbo->reserved_by = NULL; 293 ttm_bo_unreserve(&nvbo->bo); 294 drm_gem_object_unreference_unlocked(nvbo->gem); 295 } 296 } 297 298 static void 299 validate_fini(struct validate_op *op, struct nouveau_fence* fence) 300 { 301 validate_fini_list(&op->vram_list, fence); 302 validate_fini_list(&op->gart_list, fence); 303 validate_fini_list(&op->both_list, fence); 304 } 305 306 static int 307 validate_init(struct nouveau_channel *chan, struct drm_file *file_priv, 308 struct drm_nouveau_gem_pushbuf_bo *pbbo, 309 int nr_buffers, struct validate_op *op) 310 { 311 struct drm_device *dev = chan->dev; 312 struct drm_nouveau_private *dev_priv = dev->dev_private; 313 uint32_t sequence; 314 int trycnt = 0; 315 int ret, i; 316 317 sequence = atomic_add_return(1, &dev_priv->ttm.validate_sequence); 318 retry: 319 if (++trycnt > 100000) { 320 NV_ERROR(dev, "%s failed and gave up.\n", __func__); 321 return -EINVAL; 322 } 323 324 for (i = 0; i < nr_buffers; i++) { 325 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i]; 326 struct drm_gem_object *gem; 327 struct nouveau_bo *nvbo; 328 329 gem = drm_gem_object_lookup(dev, file_priv, b->handle); 330 if (!gem) { 331 NV_ERROR(dev, "Unknown handle 0x%08x\n", b->handle); 332 validate_fini(op, NULL); 333 return -ENOENT; 334 } 335 nvbo = gem->driver_private; 336 337 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) { 338 NV_ERROR(dev, "multiple instances of buffer %d on " 339 "validation list\n", b->handle); 340 validate_fini(op, NULL); 341 return -EINVAL; 342 } 343 344 ret = ttm_bo_reserve(&nvbo->bo, true, false, true, sequence); 345 if (ret) { 346 validate_fini(op, NULL); 347 if (unlikely(ret == -EAGAIN)) 348 ret = ttm_bo_wait_unreserved(&nvbo->bo, true); 349 drm_gem_object_unreference_unlocked(gem); 350 if (unlikely(ret)) { 351 if (ret != -ERESTARTSYS) 352 NV_ERROR(dev, "fail reserve\n"); 353 return ret; 354 } 355 goto retry; 356 } 357 358 b->user_priv = (uint64_t)(unsigned long)nvbo; 359 nvbo->reserved_by = file_priv; 360 nvbo->pbbo_index = i; 361 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) && 362 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)) 363 list_add_tail(&nvbo->entry, &op->both_list); 364 else 365 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) 366 list_add_tail(&nvbo->entry, &op->vram_list); 367 else 368 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART) 369 list_add_tail(&nvbo->entry, &op->gart_list); 370 else { 371 NV_ERROR(dev, "invalid valid domains: 0x%08x\n", 372 b->valid_domains); 373 list_add_tail(&nvbo->entry, &op->both_list); 374 validate_fini(op, NULL); 375 return -EINVAL; 376 } 377 } 378 379 return 0; 380 } 381 382 static int 383 validate_list(struct nouveau_channel *chan, struct list_head *list, 384 struct drm_nouveau_gem_pushbuf_bo *pbbo, uint64_t user_pbbo_ptr) 385 { 386 struct drm_nouveau_private *dev_priv = chan->dev->dev_private; 387 struct drm_nouveau_gem_pushbuf_bo __user *upbbo = 388 (void __force __user *)(uintptr_t)user_pbbo_ptr; 389 struct drm_device *dev = chan->dev; 390 struct nouveau_bo *nvbo; 391 int ret, relocs = 0; 392 393 list_for_each_entry(nvbo, list, entry) { 394 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index]; 395 396 ret = nouveau_fence_sync(nvbo->bo.sync_obj, chan); 397 if (unlikely(ret)) { 398 NV_ERROR(dev, "fail pre-validate sync\n"); 399 return ret; 400 } 401 402 ret = nouveau_gem_set_domain(nvbo->gem, b->read_domains, 403 b->write_domains, 404 b->valid_domains); 405 if (unlikely(ret)) { 406 NV_ERROR(dev, "fail set_domain\n"); 407 return ret; 408 } 409 410 nvbo->channel = (b->read_domains & (1 << 31)) ? NULL : chan; 411 ret = nouveau_bo_validate(nvbo, true, false, false); 412 nvbo->channel = NULL; 413 if (unlikely(ret)) { 414 if (ret != -ERESTARTSYS) 415 NV_ERROR(dev, "fail ttm_validate\n"); 416 return ret; 417 } 418 419 ret = nouveau_fence_sync(nvbo->bo.sync_obj, chan); 420 if (unlikely(ret)) { 421 NV_ERROR(dev, "fail post-validate sync\n"); 422 return ret; 423 } 424 425 if (dev_priv->card_type < NV_50) { 426 if (nvbo->bo.offset == b->presumed.offset && 427 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM && 428 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) || 429 (nvbo->bo.mem.mem_type == TTM_PL_TT && 430 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART))) 431 continue; 432 433 if (nvbo->bo.mem.mem_type == TTM_PL_TT) 434 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART; 435 else 436 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM; 437 b->presumed.offset = nvbo->bo.offset; 438 b->presumed.valid = 0; 439 relocs++; 440 441 if (DRM_COPY_TO_USER(&upbbo[nvbo->pbbo_index].presumed, 442 &b->presumed, sizeof(b->presumed))) 443 return -EFAULT; 444 } 445 } 446 447 return relocs; 448 } 449 450 static int 451 nouveau_gem_pushbuf_validate(struct nouveau_channel *chan, 452 struct drm_file *file_priv, 453 struct drm_nouveau_gem_pushbuf_bo *pbbo, 454 uint64_t user_buffers, int nr_buffers, 455 struct validate_op *op, int *apply_relocs) 456 { 457 struct drm_device *dev = chan->dev; 458 int ret, relocs = 0; 459 460 INIT_LIST_HEAD(&op->vram_list); 461 INIT_LIST_HEAD(&op->gart_list); 462 INIT_LIST_HEAD(&op->both_list); 463 464 if (nr_buffers == 0) 465 return 0; 466 467 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op); 468 if (unlikely(ret)) { 469 if (ret != -ERESTARTSYS) 470 NV_ERROR(dev, "validate_init\n"); 471 return ret; 472 } 473 474 ret = validate_list(chan, &op->vram_list, pbbo, user_buffers); 475 if (unlikely(ret < 0)) { 476 if (ret != -ERESTARTSYS) 477 NV_ERROR(dev, "validate vram_list\n"); 478 validate_fini(op, NULL); 479 return ret; 480 } 481 relocs += ret; 482 483 ret = validate_list(chan, &op->gart_list, pbbo, user_buffers); 484 if (unlikely(ret < 0)) { 485 if (ret != -ERESTARTSYS) 486 NV_ERROR(dev, "validate gart_list\n"); 487 validate_fini(op, NULL); 488 return ret; 489 } 490 relocs += ret; 491 492 ret = validate_list(chan, &op->both_list, pbbo, user_buffers); 493 if (unlikely(ret < 0)) { 494 if (ret != -ERESTARTSYS) 495 NV_ERROR(dev, "validate both_list\n"); 496 validate_fini(op, NULL); 497 return ret; 498 } 499 relocs += ret; 500 501 *apply_relocs = relocs; 502 return 0; 503 } 504 505 static inline void * 506 u_memcpya(uint64_t user, unsigned nmemb, unsigned size) 507 { 508 void *mem; 509 void __user *userptr = (void __force __user *)(uintptr_t)user; 510 511 mem = kmalloc(nmemb * size, GFP_KERNEL); 512 if (!mem) 513 return ERR_PTR(-ENOMEM); 514 515 if (DRM_COPY_FROM_USER(mem, userptr, nmemb * size)) { 516 kfree(mem); 517 return ERR_PTR(-EFAULT); 518 } 519 520 return mem; 521 } 522 523 static int 524 nouveau_gem_pushbuf_reloc_apply(struct drm_device *dev, 525 struct drm_nouveau_gem_pushbuf *req, 526 struct drm_nouveau_gem_pushbuf_bo *bo) 527 { 528 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL; 529 int ret = 0; 530 unsigned i; 531 532 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc)); 533 if (IS_ERR(reloc)) 534 return PTR_ERR(reloc); 535 536 for (i = 0; i < req->nr_relocs; i++) { 537 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i]; 538 struct drm_nouveau_gem_pushbuf_bo *b; 539 struct nouveau_bo *nvbo; 540 uint32_t data; 541 542 if (unlikely(r->bo_index > req->nr_buffers)) { 543 NV_ERROR(dev, "reloc bo index invalid\n"); 544 ret = -EINVAL; 545 break; 546 } 547 548 b = &bo[r->bo_index]; 549 if (b->presumed.valid) 550 continue; 551 552 if (unlikely(r->reloc_bo_index > req->nr_buffers)) { 553 NV_ERROR(dev, "reloc container bo index invalid\n"); 554 ret = -EINVAL; 555 break; 556 } 557 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv; 558 559 if (unlikely(r->reloc_bo_offset + 4 > 560 nvbo->bo.mem.num_pages << PAGE_SHIFT)) { 561 NV_ERROR(dev, "reloc outside of bo\n"); 562 ret = -EINVAL; 563 break; 564 } 565 566 if (!nvbo->kmap.virtual) { 567 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages, 568 &nvbo->kmap); 569 if (ret) { 570 NV_ERROR(dev, "failed kmap for reloc\n"); 571 break; 572 } 573 nvbo->validate_mapped = true; 574 } 575 576 if (r->flags & NOUVEAU_GEM_RELOC_LOW) 577 data = b->presumed.offset + r->data; 578 else 579 if (r->flags & NOUVEAU_GEM_RELOC_HIGH) 580 data = (b->presumed.offset + r->data) >> 32; 581 else 582 data = r->data; 583 584 if (r->flags & NOUVEAU_GEM_RELOC_OR) { 585 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART) 586 data |= r->tor; 587 else 588 data |= r->vor; 589 } 590 591 spin_lock(&nvbo->bo.bdev->fence_lock); 592 ret = ttm_bo_wait(&nvbo->bo, false, false, false); 593 spin_unlock(&nvbo->bo.bdev->fence_lock); 594 if (ret) { 595 NV_ERROR(dev, "reloc wait_idle failed: %d\n", ret); 596 break; 597 } 598 599 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data); 600 } 601 602 kfree(reloc); 603 return ret; 604 } 605 606 int 607 nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data, 608 struct drm_file *file_priv) 609 { 610 struct drm_nouveau_private *dev_priv = dev->dev_private; 611 struct drm_nouveau_gem_pushbuf *req = data; 612 struct drm_nouveau_gem_pushbuf_push *push; 613 struct drm_nouveau_gem_pushbuf_bo *bo; 614 struct nouveau_channel *chan; 615 struct validate_op op; 616 struct nouveau_fence *fence = NULL; 617 int i, j, ret = 0, do_reloc = 0; 618 619 chan = nouveau_channel_get(file_priv, req->channel); 620 if (IS_ERR(chan)) 621 return PTR_ERR(chan); 622 623 req->vram_available = dev_priv->fb_aper_free; 624 req->gart_available = dev_priv->gart_info.aper_free; 625 if (unlikely(req->nr_push == 0)) 626 goto out_next; 627 628 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) { 629 NV_ERROR(dev, "pushbuf push count exceeds limit: %d max %d\n", 630 req->nr_push, NOUVEAU_GEM_MAX_PUSH); 631 nouveau_channel_put(&chan); 632 return -EINVAL; 633 } 634 635 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) { 636 NV_ERROR(dev, "pushbuf bo count exceeds limit: %d max %d\n", 637 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS); 638 nouveau_channel_put(&chan); 639 return -EINVAL; 640 } 641 642 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) { 643 NV_ERROR(dev, "pushbuf reloc count exceeds limit: %d max %d\n", 644 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS); 645 nouveau_channel_put(&chan); 646 return -EINVAL; 647 } 648 649 push = u_memcpya(req->push, req->nr_push, sizeof(*push)); 650 if (IS_ERR(push)) { 651 nouveau_channel_put(&chan); 652 return PTR_ERR(push); 653 } 654 655 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo)); 656 if (IS_ERR(bo)) { 657 kfree(push); 658 nouveau_channel_put(&chan); 659 return PTR_ERR(bo); 660 } 661 662 /* Mark push buffers as being used on PFIFO, the validation code 663 * will then make sure that if the pushbuf bo moves, that they 664 * happen on the kernel channel, which will in turn cause a sync 665 * to happen before we try and submit the push buffer. 666 */ 667 for (i = 0; i < req->nr_push; i++) { 668 if (push[i].bo_index >= req->nr_buffers) { 669 NV_ERROR(dev, "push %d buffer not in list\n", i); 670 ret = -EINVAL; 671 goto out_prevalid; 672 } 673 674 bo[push[i].bo_index].read_domains |= (1 << 31); 675 } 676 677 /* Validate buffer list */ 678 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers, 679 req->nr_buffers, &op, &do_reloc); 680 if (ret) { 681 if (ret != -ERESTARTSYS) 682 NV_ERROR(dev, "validate: %d\n", ret); 683 goto out_prevalid; 684 } 685 686 /* Apply any relocations that are required */ 687 if (do_reloc) { 688 ret = nouveau_gem_pushbuf_reloc_apply(dev, req, bo); 689 if (ret) { 690 NV_ERROR(dev, "reloc apply: %d\n", ret); 691 goto out; 692 } 693 } 694 695 if (chan->dma.ib_max) { 696 ret = nouveau_dma_wait(chan, req->nr_push + 1, 6); 697 if (ret) { 698 NV_INFO(dev, "nv50cal_space: %d\n", ret); 699 goto out; 700 } 701 702 for (i = 0; i < req->nr_push; i++) { 703 struct nouveau_bo *nvbo = (void *)(unsigned long) 704 bo[push[i].bo_index].user_priv; 705 706 nv50_dma_push(chan, nvbo, push[i].offset, 707 push[i].length); 708 } 709 } else 710 if (dev_priv->chipset >= 0x25) { 711 ret = RING_SPACE(chan, req->nr_push * 2); 712 if (ret) { 713 NV_ERROR(dev, "cal_space: %d\n", ret); 714 goto out; 715 } 716 717 for (i = 0; i < req->nr_push; i++) { 718 struct nouveau_bo *nvbo = (void *)(unsigned long) 719 bo[push[i].bo_index].user_priv; 720 struct drm_mm_node *mem = nvbo->bo.mem.mm_node; 721 722 OUT_RING(chan, ((mem->start << PAGE_SHIFT) + 723 push[i].offset) | 2); 724 OUT_RING(chan, 0); 725 } 726 } else { 727 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS)); 728 if (ret) { 729 NV_ERROR(dev, "jmp_space: %d\n", ret); 730 goto out; 731 } 732 733 for (i = 0; i < req->nr_push; i++) { 734 struct nouveau_bo *nvbo = (void *)(unsigned long) 735 bo[push[i].bo_index].user_priv; 736 struct drm_mm_node *mem = nvbo->bo.mem.mm_node; 737 uint32_t cmd; 738 739 cmd = chan->pushbuf_base + ((chan->dma.cur + 2) << 2); 740 cmd |= 0x20000000; 741 if (unlikely(cmd != req->suffix0)) { 742 if (!nvbo->kmap.virtual) { 743 ret = ttm_bo_kmap(&nvbo->bo, 0, 744 nvbo->bo.mem. 745 num_pages, 746 &nvbo->kmap); 747 if (ret) { 748 WIND_RING(chan); 749 goto out; 750 } 751 nvbo->validate_mapped = true; 752 } 753 754 nouveau_bo_wr32(nvbo, (push[i].offset + 755 push[i].length - 8) / 4, cmd); 756 } 757 758 OUT_RING(chan, ((mem->start << PAGE_SHIFT) + 759 push[i].offset) | 0x20000000); 760 OUT_RING(chan, 0); 761 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++) 762 OUT_RING(chan, 0); 763 } 764 } 765 766 ret = nouveau_fence_new(chan, &fence, true); 767 if (ret) { 768 NV_ERROR(dev, "error fencing pushbuf: %d\n", ret); 769 WIND_RING(chan); 770 goto out; 771 } 772 773 out: 774 validate_fini(&op, fence); 775 nouveau_fence_unref(&fence); 776 777 out_prevalid: 778 kfree(bo); 779 kfree(push); 780 781 out_next: 782 if (chan->dma.ib_max) { 783 req->suffix0 = 0x00000000; 784 req->suffix1 = 0x00000000; 785 } else 786 if (dev_priv->chipset >= 0x25) { 787 req->suffix0 = 0x00020000; 788 req->suffix1 = 0x00000000; 789 } else { 790 req->suffix0 = 0x20000000 | 791 (chan->pushbuf_base + ((chan->dma.cur + 2) << 2)); 792 req->suffix1 = 0x00000000; 793 } 794 795 nouveau_channel_put(&chan); 796 return ret; 797 } 798 799 static inline uint32_t 800 domain_to_ttm(struct nouveau_bo *nvbo, uint32_t domain) 801 { 802 uint32_t flags = 0; 803 804 if (domain & NOUVEAU_GEM_DOMAIN_VRAM) 805 flags |= TTM_PL_FLAG_VRAM; 806 if (domain & NOUVEAU_GEM_DOMAIN_GART) 807 flags |= TTM_PL_FLAG_TT; 808 809 return flags; 810 } 811 812 int 813 nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data, 814 struct drm_file *file_priv) 815 { 816 struct drm_nouveau_gem_cpu_prep *req = data; 817 struct drm_gem_object *gem; 818 struct nouveau_bo *nvbo; 819 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT); 820 int ret = -EINVAL; 821 822 gem = drm_gem_object_lookup(dev, file_priv, req->handle); 823 if (!gem) 824 return -ENOENT; 825 nvbo = nouveau_gem_object(gem); 826 827 spin_lock(&nvbo->bo.bdev->fence_lock); 828 ret = ttm_bo_wait(&nvbo->bo, true, true, no_wait); 829 spin_unlock(&nvbo->bo.bdev->fence_lock); 830 drm_gem_object_unreference_unlocked(gem); 831 return ret; 832 } 833 834 int 835 nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data, 836 struct drm_file *file_priv) 837 { 838 return 0; 839 } 840 841 int 842 nouveau_gem_ioctl_info(struct drm_device *dev, void *data, 843 struct drm_file *file_priv) 844 { 845 struct drm_nouveau_gem_info *req = data; 846 struct drm_gem_object *gem; 847 int ret; 848 849 gem = drm_gem_object_lookup(dev, file_priv, req->handle); 850 if (!gem) 851 return -ENOENT; 852 853 ret = nouveau_gem_info(file_priv, gem, req); 854 drm_gem_object_unreference_unlocked(gem); 855 return ret; 856 } 857 858