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->cpu_filp)) 52 ttm_bo_synccpu_write_release(bo); 53 54 if (unlikely(nvbo->pin_refcnt)) { 55 nvbo->pin_refcnt = 1; 56 nouveau_bo_unpin(nvbo); 57 } 58 59 ttm_bo_unref(&bo); 60 61 drm_gem_object_release(gem); 62 kfree(gem); 63 } 64 65 int 66 nouveau_gem_new(struct drm_device *dev, struct nouveau_channel *chan, 67 int size, int align, uint32_t flags, uint32_t tile_mode, 68 uint32_t tile_flags, bool no_vm, bool mappable, 69 struct nouveau_bo **pnvbo) 70 { 71 struct nouveau_bo *nvbo; 72 int ret; 73 74 ret = nouveau_bo_new(dev, chan, size, align, flags, tile_mode, 75 tile_flags, no_vm, mappable, pnvbo); 76 if (ret) 77 return ret; 78 nvbo = *pnvbo; 79 80 nvbo->gem = drm_gem_object_alloc(dev, nvbo->bo.mem.size); 81 if (!nvbo->gem) { 82 nouveau_bo_ref(NULL, pnvbo); 83 return -ENOMEM; 84 } 85 86 nvbo->bo.persistant_swap_storage = nvbo->gem->filp; 87 nvbo->gem->driver_private = nvbo; 88 return 0; 89 } 90 91 static int 92 nouveau_gem_info(struct drm_gem_object *gem, struct drm_nouveau_gem_info *rep) 93 { 94 struct nouveau_bo *nvbo = nouveau_gem_object(gem); 95 96 if (nvbo->bo.mem.mem_type == TTM_PL_TT) 97 rep->domain = NOUVEAU_GEM_DOMAIN_GART; 98 else 99 rep->domain = NOUVEAU_GEM_DOMAIN_VRAM; 100 101 rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT; 102 rep->offset = nvbo->bo.offset; 103 rep->map_handle = nvbo->mappable ? nvbo->bo.addr_space_offset : 0; 104 rep->tile_mode = nvbo->tile_mode; 105 rep->tile_flags = nvbo->tile_flags; 106 return 0; 107 } 108 109 static bool 110 nouveau_gem_tile_flags_valid(struct drm_device *dev, uint32_t tile_flags) 111 { 112 struct drm_nouveau_private *dev_priv = dev->dev_private; 113 114 if (dev_priv->card_type >= NV_50) { 115 switch (tile_flags & NOUVEAU_GEM_TILE_LAYOUT_MASK) { 116 case 0x0000: 117 case 0x1800: 118 case 0x2800: 119 case 0x4800: 120 case 0x7000: 121 case 0x7400: 122 case 0x7a00: 123 case 0xe000: 124 return true; 125 } 126 } else { 127 if (!(tile_flags & NOUVEAU_GEM_TILE_LAYOUT_MASK)) 128 return true; 129 } 130 131 NV_ERROR(dev, "bad page flags: 0x%08x\n", tile_flags); 132 return false; 133 } 134 135 int 136 nouveau_gem_ioctl_new(struct drm_device *dev, void *data, 137 struct drm_file *file_priv) 138 { 139 struct drm_nouveau_private *dev_priv = dev->dev_private; 140 struct drm_nouveau_gem_new *req = data; 141 struct nouveau_bo *nvbo = NULL; 142 struct nouveau_channel *chan = NULL; 143 uint32_t flags = 0; 144 int ret = 0; 145 146 if (unlikely(dev_priv->ttm.bdev.dev_mapping == NULL)) 147 dev_priv->ttm.bdev.dev_mapping = dev_priv->dev->dev_mapping; 148 149 if (req->channel_hint) { 150 NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel_hint, 151 file_priv, chan); 152 } 153 154 if (req->info.domain & NOUVEAU_GEM_DOMAIN_VRAM) 155 flags |= TTM_PL_FLAG_VRAM; 156 if (req->info.domain & NOUVEAU_GEM_DOMAIN_GART) 157 flags |= TTM_PL_FLAG_TT; 158 if (!flags || req->info.domain & NOUVEAU_GEM_DOMAIN_CPU) 159 flags |= TTM_PL_FLAG_SYSTEM; 160 161 if (!nouveau_gem_tile_flags_valid(dev, req->info.tile_flags)) 162 return -EINVAL; 163 164 ret = nouveau_gem_new(dev, chan, req->info.size, req->align, flags, 165 req->info.tile_mode, req->info.tile_flags, false, 166 (req->info.domain & NOUVEAU_GEM_DOMAIN_MAPPABLE), 167 &nvbo); 168 if (ret) 169 return ret; 170 171 ret = nouveau_gem_info(nvbo->gem, &req->info); 172 if (ret) 173 goto out; 174 175 ret = drm_gem_handle_create(file_priv, nvbo->gem, &req->info.handle); 176 /* drop reference from allocate - handle holds it now */ 177 drm_gem_object_unreference_unlocked(nvbo->gem); 178 out: 179 return ret; 180 } 181 182 static int 183 nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains, 184 uint32_t write_domains, uint32_t valid_domains) 185 { 186 struct nouveau_bo *nvbo = gem->driver_private; 187 struct ttm_buffer_object *bo = &nvbo->bo; 188 uint32_t domains = valid_domains & 189 (write_domains ? write_domains : read_domains); 190 uint32_t pref_flags = 0, valid_flags = 0; 191 192 if (!domains) 193 return -EINVAL; 194 195 if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) 196 valid_flags |= TTM_PL_FLAG_VRAM; 197 198 if (valid_domains & NOUVEAU_GEM_DOMAIN_GART) 199 valid_flags |= TTM_PL_FLAG_TT; 200 201 if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) && 202 bo->mem.mem_type == TTM_PL_VRAM) 203 pref_flags |= TTM_PL_FLAG_VRAM; 204 205 else if ((domains & NOUVEAU_GEM_DOMAIN_GART) && 206 bo->mem.mem_type == TTM_PL_TT) 207 pref_flags |= TTM_PL_FLAG_TT; 208 209 else if (domains & NOUVEAU_GEM_DOMAIN_VRAM) 210 pref_flags |= TTM_PL_FLAG_VRAM; 211 212 else 213 pref_flags |= TTM_PL_FLAG_TT; 214 215 nouveau_bo_placement_set(nvbo, pref_flags, valid_flags); 216 217 return 0; 218 } 219 220 struct validate_op { 221 struct list_head vram_list; 222 struct list_head gart_list; 223 struct list_head both_list; 224 }; 225 226 static void 227 validate_fini_list(struct list_head *list, struct nouveau_fence *fence) 228 { 229 struct list_head *entry, *tmp; 230 struct nouveau_bo *nvbo; 231 232 list_for_each_safe(entry, tmp, list) { 233 nvbo = list_entry(entry, struct nouveau_bo, entry); 234 if (likely(fence)) { 235 struct nouveau_fence *prev_fence; 236 237 spin_lock(&nvbo->bo.lock); 238 prev_fence = nvbo->bo.sync_obj; 239 nvbo->bo.sync_obj = nouveau_fence_ref(fence); 240 spin_unlock(&nvbo->bo.lock); 241 nouveau_fence_unref((void *)&prev_fence); 242 } 243 244 if (unlikely(nvbo->validate_mapped)) { 245 ttm_bo_kunmap(&nvbo->kmap); 246 nvbo->validate_mapped = false; 247 } 248 249 list_del(&nvbo->entry); 250 nvbo->reserved_by = NULL; 251 ttm_bo_unreserve(&nvbo->bo); 252 drm_gem_object_unreference_unlocked(nvbo->gem); 253 } 254 } 255 256 static void 257 validate_fini(struct validate_op *op, struct nouveau_fence* fence) 258 { 259 validate_fini_list(&op->vram_list, fence); 260 validate_fini_list(&op->gart_list, fence); 261 validate_fini_list(&op->both_list, fence); 262 } 263 264 static int 265 validate_init(struct nouveau_channel *chan, struct drm_file *file_priv, 266 struct drm_nouveau_gem_pushbuf_bo *pbbo, 267 int nr_buffers, struct validate_op *op) 268 { 269 struct drm_device *dev = chan->dev; 270 struct drm_nouveau_private *dev_priv = dev->dev_private; 271 uint32_t sequence; 272 int trycnt = 0; 273 int ret, i; 274 275 sequence = atomic_add_return(1, &dev_priv->ttm.validate_sequence); 276 retry: 277 if (++trycnt > 100000) { 278 NV_ERROR(dev, "%s failed and gave up.\n", __func__); 279 return -EINVAL; 280 } 281 282 for (i = 0; i < nr_buffers; i++) { 283 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i]; 284 struct drm_gem_object *gem; 285 struct nouveau_bo *nvbo; 286 287 gem = drm_gem_object_lookup(dev, file_priv, b->handle); 288 if (!gem) { 289 NV_ERROR(dev, "Unknown handle 0x%08x\n", b->handle); 290 validate_fini(op, NULL); 291 return -ENOENT; 292 } 293 nvbo = gem->driver_private; 294 295 if (nvbo->reserved_by && nvbo->reserved_by == file_priv) { 296 NV_ERROR(dev, "multiple instances of buffer %d on " 297 "validation list\n", b->handle); 298 validate_fini(op, NULL); 299 return -EINVAL; 300 } 301 302 ret = ttm_bo_reserve(&nvbo->bo, false, false, true, sequence); 303 if (ret) { 304 validate_fini(op, NULL); 305 if (ret == -EAGAIN) 306 ret = ttm_bo_wait_unreserved(&nvbo->bo, false); 307 drm_gem_object_unreference_unlocked(gem); 308 if (ret) { 309 NV_ERROR(dev, "fail reserve\n"); 310 return ret; 311 } 312 goto retry; 313 } 314 315 b->user_priv = (uint64_t)(unsigned long)nvbo; 316 nvbo->reserved_by = file_priv; 317 nvbo->pbbo_index = i; 318 if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) && 319 (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)) 320 list_add_tail(&nvbo->entry, &op->both_list); 321 else 322 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) 323 list_add_tail(&nvbo->entry, &op->vram_list); 324 else 325 if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART) 326 list_add_tail(&nvbo->entry, &op->gart_list); 327 else { 328 NV_ERROR(dev, "invalid valid domains: 0x%08x\n", 329 b->valid_domains); 330 list_add_tail(&nvbo->entry, &op->both_list); 331 validate_fini(op, NULL); 332 return -EINVAL; 333 } 334 335 if (unlikely(atomic_read(&nvbo->bo.cpu_writers) > 0)) { 336 validate_fini(op, NULL); 337 338 if (nvbo->cpu_filp == file_priv) { 339 NV_ERROR(dev, "bo %p mapped by process trying " 340 "to validate it!\n", nvbo); 341 return -EINVAL; 342 } 343 344 mutex_unlock(&drm_global_mutex); 345 ret = ttm_bo_wait_cpu(&nvbo->bo, false); 346 mutex_lock(&drm_global_mutex); 347 if (ret) { 348 NV_ERROR(dev, "fail wait_cpu\n"); 349 return ret; 350 } 351 goto retry; 352 } 353 } 354 355 return 0; 356 } 357 358 static int 359 validate_list(struct nouveau_channel *chan, struct list_head *list, 360 struct drm_nouveau_gem_pushbuf_bo *pbbo, uint64_t user_pbbo_ptr) 361 { 362 struct drm_nouveau_gem_pushbuf_bo __user *upbbo = 363 (void __force __user *)(uintptr_t)user_pbbo_ptr; 364 struct drm_device *dev = chan->dev; 365 struct nouveau_bo *nvbo; 366 int ret, relocs = 0; 367 368 list_for_each_entry(nvbo, list, entry) { 369 struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index]; 370 371 ret = nouveau_fence_sync(nvbo->bo.sync_obj, chan); 372 if (unlikely(ret)) { 373 NV_ERROR(dev, "fail pre-validate sync\n"); 374 return ret; 375 } 376 377 ret = nouveau_gem_set_domain(nvbo->gem, b->read_domains, 378 b->write_domains, 379 b->valid_domains); 380 if (unlikely(ret)) { 381 NV_ERROR(dev, "fail set_domain\n"); 382 return ret; 383 } 384 385 nvbo->channel = (b->read_domains & (1 << 31)) ? NULL : chan; 386 ret = ttm_bo_validate(&nvbo->bo, &nvbo->placement, 387 false, false, false); 388 nvbo->channel = NULL; 389 if (unlikely(ret)) { 390 NV_ERROR(dev, "fail ttm_validate\n"); 391 return ret; 392 } 393 394 ret = nouveau_fence_sync(nvbo->bo.sync_obj, chan); 395 if (unlikely(ret)) { 396 NV_ERROR(dev, "fail post-validate sync\n"); 397 return ret; 398 } 399 400 if (nvbo->bo.offset == b->presumed.offset && 401 ((nvbo->bo.mem.mem_type == TTM_PL_VRAM && 402 b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) || 403 (nvbo->bo.mem.mem_type == TTM_PL_TT && 404 b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART))) 405 continue; 406 407 if (nvbo->bo.mem.mem_type == TTM_PL_TT) 408 b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART; 409 else 410 b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM; 411 b->presumed.offset = nvbo->bo.offset; 412 b->presumed.valid = 0; 413 relocs++; 414 415 if (DRM_COPY_TO_USER(&upbbo[nvbo->pbbo_index].presumed, 416 &b->presumed, sizeof(b->presumed))) 417 return -EFAULT; 418 } 419 420 return relocs; 421 } 422 423 static int 424 nouveau_gem_pushbuf_validate(struct nouveau_channel *chan, 425 struct drm_file *file_priv, 426 struct drm_nouveau_gem_pushbuf_bo *pbbo, 427 uint64_t user_buffers, int nr_buffers, 428 struct validate_op *op, int *apply_relocs) 429 { 430 struct drm_device *dev = chan->dev; 431 int ret, relocs = 0; 432 433 INIT_LIST_HEAD(&op->vram_list); 434 INIT_LIST_HEAD(&op->gart_list); 435 INIT_LIST_HEAD(&op->both_list); 436 437 if (nr_buffers == 0) 438 return 0; 439 440 ret = validate_init(chan, file_priv, pbbo, nr_buffers, op); 441 if (unlikely(ret)) { 442 NV_ERROR(dev, "validate_init\n"); 443 return ret; 444 } 445 446 ret = validate_list(chan, &op->vram_list, pbbo, user_buffers); 447 if (unlikely(ret < 0)) { 448 NV_ERROR(dev, "validate vram_list\n"); 449 validate_fini(op, NULL); 450 return ret; 451 } 452 relocs += ret; 453 454 ret = validate_list(chan, &op->gart_list, pbbo, user_buffers); 455 if (unlikely(ret < 0)) { 456 NV_ERROR(dev, "validate gart_list\n"); 457 validate_fini(op, NULL); 458 return ret; 459 } 460 relocs += ret; 461 462 ret = validate_list(chan, &op->both_list, pbbo, user_buffers); 463 if (unlikely(ret < 0)) { 464 NV_ERROR(dev, "validate both_list\n"); 465 validate_fini(op, NULL); 466 return ret; 467 } 468 relocs += ret; 469 470 *apply_relocs = relocs; 471 return 0; 472 } 473 474 static inline void * 475 u_memcpya(uint64_t user, unsigned nmemb, unsigned size) 476 { 477 void *mem; 478 void __user *userptr = (void __force __user *)(uintptr_t)user; 479 480 mem = kmalloc(nmemb * size, GFP_KERNEL); 481 if (!mem) 482 return ERR_PTR(-ENOMEM); 483 484 if (DRM_COPY_FROM_USER(mem, userptr, nmemb * size)) { 485 kfree(mem); 486 return ERR_PTR(-EFAULT); 487 } 488 489 return mem; 490 } 491 492 static int 493 nouveau_gem_pushbuf_reloc_apply(struct drm_device *dev, 494 struct drm_nouveau_gem_pushbuf *req, 495 struct drm_nouveau_gem_pushbuf_bo *bo) 496 { 497 struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL; 498 int ret = 0; 499 unsigned i; 500 501 reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc)); 502 if (IS_ERR(reloc)) 503 return PTR_ERR(reloc); 504 505 for (i = 0; i < req->nr_relocs; i++) { 506 struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i]; 507 struct drm_nouveau_gem_pushbuf_bo *b; 508 struct nouveau_bo *nvbo; 509 uint32_t data; 510 511 if (unlikely(r->bo_index > req->nr_buffers)) { 512 NV_ERROR(dev, "reloc bo index invalid\n"); 513 ret = -EINVAL; 514 break; 515 } 516 517 b = &bo[r->bo_index]; 518 if (b->presumed.valid) 519 continue; 520 521 if (unlikely(r->reloc_bo_index > req->nr_buffers)) { 522 NV_ERROR(dev, "reloc container bo index invalid\n"); 523 ret = -EINVAL; 524 break; 525 } 526 nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv; 527 528 if (unlikely(r->reloc_bo_offset + 4 > 529 nvbo->bo.mem.num_pages << PAGE_SHIFT)) { 530 NV_ERROR(dev, "reloc outside of bo\n"); 531 ret = -EINVAL; 532 break; 533 } 534 535 if (!nvbo->kmap.virtual) { 536 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages, 537 &nvbo->kmap); 538 if (ret) { 539 NV_ERROR(dev, "failed kmap for reloc\n"); 540 break; 541 } 542 nvbo->validate_mapped = true; 543 } 544 545 if (r->flags & NOUVEAU_GEM_RELOC_LOW) 546 data = b->presumed.offset + r->data; 547 else 548 if (r->flags & NOUVEAU_GEM_RELOC_HIGH) 549 data = (b->presumed.offset + r->data) >> 32; 550 else 551 data = r->data; 552 553 if (r->flags & NOUVEAU_GEM_RELOC_OR) { 554 if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART) 555 data |= r->tor; 556 else 557 data |= r->vor; 558 } 559 560 spin_lock(&nvbo->bo.lock); 561 ret = ttm_bo_wait(&nvbo->bo, false, false, false); 562 spin_unlock(&nvbo->bo.lock); 563 if (ret) { 564 NV_ERROR(dev, "reloc wait_idle failed: %d\n", ret); 565 break; 566 } 567 568 nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data); 569 } 570 571 kfree(reloc); 572 return ret; 573 } 574 575 int 576 nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data, 577 struct drm_file *file_priv) 578 { 579 struct drm_nouveau_private *dev_priv = dev->dev_private; 580 struct drm_nouveau_gem_pushbuf *req = data; 581 struct drm_nouveau_gem_pushbuf_push *push; 582 struct drm_nouveau_gem_pushbuf_bo *bo; 583 struct nouveau_channel *chan; 584 struct validate_op op; 585 struct nouveau_fence *fence = NULL; 586 int i, j, ret = 0, do_reloc = 0; 587 588 NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel, file_priv, chan); 589 590 req->vram_available = dev_priv->fb_aper_free; 591 req->gart_available = dev_priv->gart_info.aper_free; 592 if (unlikely(req->nr_push == 0)) 593 goto out_next; 594 595 if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) { 596 NV_ERROR(dev, "pushbuf push count exceeds limit: %d max %d\n", 597 req->nr_push, NOUVEAU_GEM_MAX_PUSH); 598 return -EINVAL; 599 } 600 601 if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) { 602 NV_ERROR(dev, "pushbuf bo count exceeds limit: %d max %d\n", 603 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS); 604 return -EINVAL; 605 } 606 607 if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) { 608 NV_ERROR(dev, "pushbuf reloc count exceeds limit: %d max %d\n", 609 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS); 610 return -EINVAL; 611 } 612 613 push = u_memcpya(req->push, req->nr_push, sizeof(*push)); 614 if (IS_ERR(push)) 615 return PTR_ERR(push); 616 617 bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo)); 618 if (IS_ERR(bo)) { 619 kfree(push); 620 return PTR_ERR(bo); 621 } 622 623 /* Mark push buffers as being used on PFIFO, the validation code 624 * will then make sure that if the pushbuf bo moves, that they 625 * happen on the kernel channel, which will in turn cause a sync 626 * to happen before we try and submit the push buffer. 627 */ 628 for (i = 0; i < req->nr_push; i++) { 629 if (push[i].bo_index >= req->nr_buffers) { 630 NV_ERROR(dev, "push %d buffer not in list\n", i); 631 ret = -EINVAL; 632 goto out; 633 } 634 635 bo[push[i].bo_index].read_domains |= (1 << 31); 636 } 637 638 /* Validate buffer list */ 639 ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers, 640 req->nr_buffers, &op, &do_reloc); 641 if (ret) { 642 NV_ERROR(dev, "validate: %d\n", ret); 643 goto out; 644 } 645 646 /* Apply any relocations that are required */ 647 if (do_reloc) { 648 ret = nouveau_gem_pushbuf_reloc_apply(dev, req, bo); 649 if (ret) { 650 NV_ERROR(dev, "reloc apply: %d\n", ret); 651 goto out; 652 } 653 } 654 655 if (chan->dma.ib_max) { 656 ret = nouveau_dma_wait(chan, req->nr_push + 1, 6); 657 if (ret) { 658 NV_INFO(dev, "nv50cal_space: %d\n", ret); 659 goto out; 660 } 661 662 for (i = 0; i < req->nr_push; i++) { 663 struct nouveau_bo *nvbo = (void *)(unsigned long) 664 bo[push[i].bo_index].user_priv; 665 666 nv50_dma_push(chan, nvbo, push[i].offset, 667 push[i].length); 668 } 669 } else 670 if (dev_priv->chipset >= 0x25) { 671 ret = RING_SPACE(chan, req->nr_push * 2); 672 if (ret) { 673 NV_ERROR(dev, "cal_space: %d\n", ret); 674 goto out; 675 } 676 677 for (i = 0; i < req->nr_push; i++) { 678 struct nouveau_bo *nvbo = (void *)(unsigned long) 679 bo[push[i].bo_index].user_priv; 680 struct drm_mm_node *mem = nvbo->bo.mem.mm_node; 681 682 OUT_RING(chan, ((mem->start << PAGE_SHIFT) + 683 push[i].offset) | 2); 684 OUT_RING(chan, 0); 685 } 686 } else { 687 ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS)); 688 if (ret) { 689 NV_ERROR(dev, "jmp_space: %d\n", ret); 690 goto out; 691 } 692 693 for (i = 0; i < req->nr_push; i++) { 694 struct nouveau_bo *nvbo = (void *)(unsigned long) 695 bo[push[i].bo_index].user_priv; 696 struct drm_mm_node *mem = nvbo->bo.mem.mm_node; 697 uint32_t cmd; 698 699 cmd = chan->pushbuf_base + ((chan->dma.cur + 2) << 2); 700 cmd |= 0x20000000; 701 if (unlikely(cmd != req->suffix0)) { 702 if (!nvbo->kmap.virtual) { 703 ret = ttm_bo_kmap(&nvbo->bo, 0, 704 nvbo->bo.mem. 705 num_pages, 706 &nvbo->kmap); 707 if (ret) { 708 WIND_RING(chan); 709 goto out; 710 } 711 nvbo->validate_mapped = true; 712 } 713 714 nouveau_bo_wr32(nvbo, (push[i].offset + 715 push[i].length - 8) / 4, cmd); 716 } 717 718 OUT_RING(chan, ((mem->start << PAGE_SHIFT) + 719 push[i].offset) | 0x20000000); 720 OUT_RING(chan, 0); 721 for (j = 0; j < NOUVEAU_DMA_SKIPS; j++) 722 OUT_RING(chan, 0); 723 } 724 } 725 726 ret = nouveau_fence_new(chan, &fence, true); 727 if (ret) { 728 NV_ERROR(dev, "error fencing pushbuf: %d\n", ret); 729 WIND_RING(chan); 730 goto out; 731 } 732 733 out: 734 validate_fini(&op, fence); 735 nouveau_fence_unref((void**)&fence); 736 kfree(bo); 737 kfree(push); 738 739 out_next: 740 if (chan->dma.ib_max) { 741 req->suffix0 = 0x00000000; 742 req->suffix1 = 0x00000000; 743 } else 744 if (dev_priv->chipset >= 0x25) { 745 req->suffix0 = 0x00020000; 746 req->suffix1 = 0x00000000; 747 } else { 748 req->suffix0 = 0x20000000 | 749 (chan->pushbuf_base + ((chan->dma.cur + 2) << 2)); 750 req->suffix1 = 0x00000000; 751 } 752 753 return ret; 754 } 755 756 static inline uint32_t 757 domain_to_ttm(struct nouveau_bo *nvbo, uint32_t domain) 758 { 759 uint32_t flags = 0; 760 761 if (domain & NOUVEAU_GEM_DOMAIN_VRAM) 762 flags |= TTM_PL_FLAG_VRAM; 763 if (domain & NOUVEAU_GEM_DOMAIN_GART) 764 flags |= TTM_PL_FLAG_TT; 765 766 return flags; 767 } 768 769 int 770 nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data, 771 struct drm_file *file_priv) 772 { 773 struct drm_nouveau_gem_cpu_prep *req = data; 774 struct drm_gem_object *gem; 775 struct nouveau_bo *nvbo; 776 bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT); 777 int ret = -EINVAL; 778 779 gem = drm_gem_object_lookup(dev, file_priv, req->handle); 780 if (!gem) 781 return -ENOENT; 782 nvbo = nouveau_gem_object(gem); 783 784 if (nvbo->cpu_filp) { 785 if (nvbo->cpu_filp == file_priv) 786 goto out; 787 788 ret = ttm_bo_wait_cpu(&nvbo->bo, no_wait); 789 if (ret) 790 goto out; 791 } 792 793 if (req->flags & NOUVEAU_GEM_CPU_PREP_NOBLOCK) { 794 spin_lock(&nvbo->bo.lock); 795 ret = ttm_bo_wait(&nvbo->bo, false, false, no_wait); 796 spin_unlock(&nvbo->bo.lock); 797 } else { 798 ret = ttm_bo_synccpu_write_grab(&nvbo->bo, no_wait); 799 if (ret == 0) 800 nvbo->cpu_filp = file_priv; 801 } 802 803 out: 804 drm_gem_object_unreference_unlocked(gem); 805 return ret; 806 } 807 808 int 809 nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data, 810 struct drm_file *file_priv) 811 { 812 struct drm_nouveau_gem_cpu_prep *req = data; 813 struct drm_gem_object *gem; 814 struct nouveau_bo *nvbo; 815 int ret = -EINVAL; 816 817 gem = drm_gem_object_lookup(dev, file_priv, req->handle); 818 if (!gem) 819 return -ENOENT; 820 nvbo = nouveau_gem_object(gem); 821 822 if (nvbo->cpu_filp != file_priv) 823 goto out; 824 nvbo->cpu_filp = NULL; 825 826 ttm_bo_synccpu_write_release(&nvbo->bo); 827 ret = 0; 828 829 out: 830 drm_gem_object_unreference_unlocked(gem); 831 return ret; 832 } 833 834 int 835 nouveau_gem_ioctl_info(struct drm_device *dev, void *data, 836 struct drm_file *file_priv) 837 { 838 struct drm_nouveau_gem_info *req = data; 839 struct drm_gem_object *gem; 840 int ret; 841 842 gem = drm_gem_object_lookup(dev, file_priv, req->handle); 843 if (!gem) 844 return -ENOENT; 845 846 ret = nouveau_gem_info(gem, req); 847 drm_gem_object_unreference_unlocked(gem); 848 return ret; 849 } 850 851