1 /* 2 * Copyright 2007 Dave Airlied 3 * All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice (including the next 13 * paragraph) shall be included in all copies or substantial portions of the 14 * Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 */ 24 /* 25 * Authors: Dave Airlied <airlied@linux.ie> 26 * Ben Skeggs <darktama@iinet.net.au> 27 * Jeremy Kolb <jkolb@brandeis.edu> 28 */ 29 30 #include <linux/dma-mapping.h> 31 #include <linux/swiotlb.h> 32 33 #include "nouveau_drm.h" 34 #include "nouveau_dma.h" 35 #include "nouveau_fence.h" 36 37 #include "nouveau_bo.h" 38 #include "nouveau_ttm.h" 39 #include "nouveau_gem.h" 40 41 /* 42 * NV10-NV40 tiling helpers 43 */ 44 45 static void 46 nv10_bo_update_tile_region(struct drm_device *dev, struct nouveau_drm_tile *reg, 47 u32 addr, u32 size, u32 pitch, u32 flags) 48 { 49 struct nouveau_drm *drm = nouveau_drm(dev); 50 int i = reg - drm->tile.reg; 51 struct nvkm_fb *pfb = nvxx_fb(&drm->device); 52 struct nvkm_fb_tile *tile = &pfb->tile.region[i]; 53 struct nvkm_engine *engine; 54 55 nouveau_fence_unref(®->fence); 56 57 if (tile->pitch) 58 pfb->tile.fini(pfb, i, tile); 59 60 if (pitch) 61 pfb->tile.init(pfb, i, addr, size, pitch, flags, tile); 62 63 pfb->tile.prog(pfb, i, tile); 64 65 if ((engine = nvkm_engine(pfb, NVDEV_ENGINE_GR))) 66 engine->tile_prog(engine, i); 67 if ((engine = nvkm_engine(pfb, NVDEV_ENGINE_MPEG))) 68 engine->tile_prog(engine, i); 69 } 70 71 static struct nouveau_drm_tile * 72 nv10_bo_get_tile_region(struct drm_device *dev, int i) 73 { 74 struct nouveau_drm *drm = nouveau_drm(dev); 75 struct nouveau_drm_tile *tile = &drm->tile.reg[i]; 76 77 spin_lock(&drm->tile.lock); 78 79 if (!tile->used && 80 (!tile->fence || nouveau_fence_done(tile->fence))) 81 tile->used = true; 82 else 83 tile = NULL; 84 85 spin_unlock(&drm->tile.lock); 86 return tile; 87 } 88 89 static void 90 nv10_bo_put_tile_region(struct drm_device *dev, struct nouveau_drm_tile *tile, 91 struct fence *fence) 92 { 93 struct nouveau_drm *drm = nouveau_drm(dev); 94 95 if (tile) { 96 spin_lock(&drm->tile.lock); 97 tile->fence = (struct nouveau_fence *)fence_get(fence); 98 tile->used = false; 99 spin_unlock(&drm->tile.lock); 100 } 101 } 102 103 static struct nouveau_drm_tile * 104 nv10_bo_set_tiling(struct drm_device *dev, u32 addr, 105 u32 size, u32 pitch, u32 flags) 106 { 107 struct nouveau_drm *drm = nouveau_drm(dev); 108 struct nvkm_fb *pfb = nvxx_fb(&drm->device); 109 struct nouveau_drm_tile *tile, *found = NULL; 110 int i; 111 112 for (i = 0; i < pfb->tile.regions; i++) { 113 tile = nv10_bo_get_tile_region(dev, i); 114 115 if (pitch && !found) { 116 found = tile; 117 continue; 118 119 } else if (tile && pfb->tile.region[i].pitch) { 120 /* Kill an unused tile region. */ 121 nv10_bo_update_tile_region(dev, tile, 0, 0, 0, 0); 122 } 123 124 nv10_bo_put_tile_region(dev, tile, NULL); 125 } 126 127 if (found) 128 nv10_bo_update_tile_region(dev, found, addr, size, 129 pitch, flags); 130 return found; 131 } 132 133 static void 134 nouveau_bo_del_ttm(struct ttm_buffer_object *bo) 135 { 136 struct nouveau_drm *drm = nouveau_bdev(bo->bdev); 137 struct drm_device *dev = drm->dev; 138 struct nouveau_bo *nvbo = nouveau_bo(bo); 139 140 if (unlikely(nvbo->gem.filp)) 141 DRM_ERROR("bo %p still attached to GEM object\n", bo); 142 WARN_ON(nvbo->pin_refcnt > 0); 143 nv10_bo_put_tile_region(dev, nvbo->tile, NULL); 144 kfree(nvbo); 145 } 146 147 static void 148 nouveau_bo_fixup_align(struct nouveau_bo *nvbo, u32 flags, 149 int *align, int *size) 150 { 151 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev); 152 struct nvif_device *device = &drm->device; 153 154 if (device->info.family < NV_DEVICE_INFO_V0_TESLA) { 155 if (nvbo->tile_mode) { 156 if (device->info.chipset >= 0x40) { 157 *align = 65536; 158 *size = roundup(*size, 64 * nvbo->tile_mode); 159 160 } else if (device->info.chipset >= 0x30) { 161 *align = 32768; 162 *size = roundup(*size, 64 * nvbo->tile_mode); 163 164 } else if (device->info.chipset >= 0x20) { 165 *align = 16384; 166 *size = roundup(*size, 64 * nvbo->tile_mode); 167 168 } else if (device->info.chipset >= 0x10) { 169 *align = 16384; 170 *size = roundup(*size, 32 * nvbo->tile_mode); 171 } 172 } 173 } else { 174 *size = roundup(*size, (1 << nvbo->page_shift)); 175 *align = max((1 << nvbo->page_shift), *align); 176 } 177 178 *size = roundup(*size, PAGE_SIZE); 179 } 180 181 int 182 nouveau_bo_new(struct drm_device *dev, int size, int align, 183 uint32_t flags, uint32_t tile_mode, uint32_t tile_flags, 184 struct sg_table *sg, struct reservation_object *robj, 185 struct nouveau_bo **pnvbo) 186 { 187 struct nouveau_drm *drm = nouveau_drm(dev); 188 struct nouveau_bo *nvbo; 189 size_t acc_size; 190 int ret; 191 int type = ttm_bo_type_device; 192 int lpg_shift = 12; 193 int max_size; 194 195 if (drm->client.vm) 196 lpg_shift = drm->client.vm->mmu->lpg_shift; 197 max_size = INT_MAX & ~((1 << lpg_shift) - 1); 198 199 if (size <= 0 || size > max_size) { 200 NV_WARN(drm, "skipped size %x\n", (u32)size); 201 return -EINVAL; 202 } 203 204 if (sg) 205 type = ttm_bo_type_sg; 206 207 nvbo = kzalloc(sizeof(struct nouveau_bo), GFP_KERNEL); 208 if (!nvbo) 209 return -ENOMEM; 210 INIT_LIST_HEAD(&nvbo->head); 211 INIT_LIST_HEAD(&nvbo->entry); 212 INIT_LIST_HEAD(&nvbo->vma_list); 213 nvbo->tile_mode = tile_mode; 214 nvbo->tile_flags = tile_flags; 215 nvbo->bo.bdev = &drm->ttm.bdev; 216 217 if (!nv_device_is_cpu_coherent(nvxx_device(&drm->device))) 218 nvbo->force_coherent = flags & TTM_PL_FLAG_UNCACHED; 219 220 nvbo->page_shift = 12; 221 if (drm->client.vm) { 222 if (!(flags & TTM_PL_FLAG_TT) && size > 256 * 1024) 223 nvbo->page_shift = drm->client.vm->mmu->lpg_shift; 224 } 225 226 nouveau_bo_fixup_align(nvbo, flags, &align, &size); 227 nvbo->bo.mem.num_pages = size >> PAGE_SHIFT; 228 nouveau_bo_placement_set(nvbo, flags, 0); 229 230 acc_size = ttm_bo_dma_acc_size(&drm->ttm.bdev, size, 231 sizeof(struct nouveau_bo)); 232 233 ret = ttm_bo_init(&drm->ttm.bdev, &nvbo->bo, size, 234 type, &nvbo->placement, 235 align >> PAGE_SHIFT, false, NULL, acc_size, sg, 236 robj, nouveau_bo_del_ttm); 237 if (ret) { 238 /* ttm will call nouveau_bo_del_ttm if it fails.. */ 239 return ret; 240 } 241 242 *pnvbo = nvbo; 243 return 0; 244 } 245 246 static void 247 set_placement_list(struct ttm_place *pl, unsigned *n, uint32_t type, uint32_t flags) 248 { 249 *n = 0; 250 251 if (type & TTM_PL_FLAG_VRAM) 252 pl[(*n)++].flags = TTM_PL_FLAG_VRAM | flags; 253 if (type & TTM_PL_FLAG_TT) 254 pl[(*n)++].flags = TTM_PL_FLAG_TT | flags; 255 if (type & TTM_PL_FLAG_SYSTEM) 256 pl[(*n)++].flags = TTM_PL_FLAG_SYSTEM | flags; 257 } 258 259 static void 260 set_placement_range(struct nouveau_bo *nvbo, uint32_t type) 261 { 262 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev); 263 u32 vram_pages = drm->device.info.ram_size >> PAGE_SHIFT; 264 unsigned i, fpfn, lpfn; 265 266 if (drm->device.info.family == NV_DEVICE_INFO_V0_CELSIUS && 267 nvbo->tile_mode && (type & TTM_PL_FLAG_VRAM) && 268 nvbo->bo.mem.num_pages < vram_pages / 4) { 269 /* 270 * Make sure that the color and depth buffers are handled 271 * by independent memory controller units. Up to a 9x 272 * speed up when alpha-blending and depth-test are enabled 273 * at the same time. 274 */ 275 if (nvbo->tile_flags & NOUVEAU_GEM_TILE_ZETA) { 276 fpfn = vram_pages / 2; 277 lpfn = ~0; 278 } else { 279 fpfn = 0; 280 lpfn = vram_pages / 2; 281 } 282 for (i = 0; i < nvbo->placement.num_placement; ++i) { 283 nvbo->placements[i].fpfn = fpfn; 284 nvbo->placements[i].lpfn = lpfn; 285 } 286 for (i = 0; i < nvbo->placement.num_busy_placement; ++i) { 287 nvbo->busy_placements[i].fpfn = fpfn; 288 nvbo->busy_placements[i].lpfn = lpfn; 289 } 290 } 291 } 292 293 void 294 nouveau_bo_placement_set(struct nouveau_bo *nvbo, uint32_t type, uint32_t busy) 295 { 296 struct ttm_placement *pl = &nvbo->placement; 297 uint32_t flags = (nvbo->force_coherent ? TTM_PL_FLAG_UNCACHED : 298 TTM_PL_MASK_CACHING) | 299 (nvbo->pin_refcnt ? TTM_PL_FLAG_NO_EVICT : 0); 300 301 pl->placement = nvbo->placements; 302 set_placement_list(nvbo->placements, &pl->num_placement, 303 type, flags); 304 305 pl->busy_placement = nvbo->busy_placements; 306 set_placement_list(nvbo->busy_placements, &pl->num_busy_placement, 307 type | busy, flags); 308 309 set_placement_range(nvbo, type); 310 } 311 312 int 313 nouveau_bo_pin(struct nouveau_bo *nvbo, uint32_t memtype, bool contig) 314 { 315 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev); 316 struct ttm_buffer_object *bo = &nvbo->bo; 317 bool force = false, evict = false; 318 int ret; 319 320 ret = ttm_bo_reserve(bo, false, false, false, NULL); 321 if (ret) 322 return ret; 323 324 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA && 325 memtype == TTM_PL_FLAG_VRAM && contig) { 326 if (nvbo->tile_flags & NOUVEAU_GEM_TILE_NONCONTIG) { 327 if (bo->mem.mem_type == TTM_PL_VRAM) { 328 struct nvkm_mem *mem = bo->mem.mm_node; 329 if (!list_is_singular(&mem->regions)) 330 evict = true; 331 } 332 nvbo->tile_flags &= ~NOUVEAU_GEM_TILE_NONCONTIG; 333 force = true; 334 } 335 } 336 337 if (nvbo->pin_refcnt) { 338 if (!(memtype & (1 << bo->mem.mem_type)) || evict) { 339 NV_ERROR(drm, "bo %p pinned elsewhere: " 340 "0x%08x vs 0x%08x\n", bo, 341 1 << bo->mem.mem_type, memtype); 342 ret = -EBUSY; 343 } 344 nvbo->pin_refcnt++; 345 goto out; 346 } 347 348 if (evict) { 349 nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_TT, 0); 350 ret = nouveau_bo_validate(nvbo, false, false); 351 if (ret) 352 goto out; 353 } 354 355 nvbo->pin_refcnt++; 356 nouveau_bo_placement_set(nvbo, memtype, 0); 357 358 /* drop pin_refcnt temporarily, so we don't trip the assertion 359 * in nouveau_bo_move() that makes sure we're not trying to 360 * move a pinned buffer 361 */ 362 nvbo->pin_refcnt--; 363 ret = nouveau_bo_validate(nvbo, false, false); 364 if (ret) 365 goto out; 366 nvbo->pin_refcnt++; 367 368 switch (bo->mem.mem_type) { 369 case TTM_PL_VRAM: 370 drm->gem.vram_available -= bo->mem.size; 371 break; 372 case TTM_PL_TT: 373 drm->gem.gart_available -= bo->mem.size; 374 break; 375 default: 376 break; 377 } 378 379 out: 380 if (force && ret) 381 nvbo->tile_flags |= NOUVEAU_GEM_TILE_NONCONTIG; 382 ttm_bo_unreserve(bo); 383 return ret; 384 } 385 386 int 387 nouveau_bo_unpin(struct nouveau_bo *nvbo) 388 { 389 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev); 390 struct ttm_buffer_object *bo = &nvbo->bo; 391 int ret, ref; 392 393 ret = ttm_bo_reserve(bo, false, false, false, NULL); 394 if (ret) 395 return ret; 396 397 ref = --nvbo->pin_refcnt; 398 WARN_ON_ONCE(ref < 0); 399 if (ref) 400 goto out; 401 402 nouveau_bo_placement_set(nvbo, bo->mem.placement, 0); 403 404 ret = nouveau_bo_validate(nvbo, false, false); 405 if (ret == 0) { 406 switch (bo->mem.mem_type) { 407 case TTM_PL_VRAM: 408 drm->gem.vram_available += bo->mem.size; 409 break; 410 case TTM_PL_TT: 411 drm->gem.gart_available += bo->mem.size; 412 break; 413 default: 414 break; 415 } 416 } 417 418 out: 419 ttm_bo_unreserve(bo); 420 return ret; 421 } 422 423 int 424 nouveau_bo_map(struct nouveau_bo *nvbo) 425 { 426 int ret; 427 428 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, NULL); 429 if (ret) 430 return ret; 431 432 /* 433 * TTM buffers allocated using the DMA API already have a mapping, let's 434 * use it instead. 435 */ 436 if (!nvbo->force_coherent) 437 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages, 438 &nvbo->kmap); 439 440 ttm_bo_unreserve(&nvbo->bo); 441 return ret; 442 } 443 444 void 445 nouveau_bo_unmap(struct nouveau_bo *nvbo) 446 { 447 if (!nvbo) 448 return; 449 450 /* 451 * TTM buffers allocated using the DMA API already had a coherent 452 * mapping which we used, no need to unmap. 453 */ 454 if (!nvbo->force_coherent) 455 ttm_bo_kunmap(&nvbo->kmap); 456 } 457 458 void 459 nouveau_bo_sync_for_device(struct nouveau_bo *nvbo) 460 { 461 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev); 462 struct nvkm_device *device = nvxx_device(&drm->device); 463 struct ttm_dma_tt *ttm_dma = (struct ttm_dma_tt *)nvbo->bo.ttm; 464 int i; 465 466 if (!ttm_dma) 467 return; 468 469 /* Don't waste time looping if the object is coherent */ 470 if (nvbo->force_coherent) 471 return; 472 473 for (i = 0; i < ttm_dma->ttm.num_pages; i++) 474 dma_sync_single_for_device(nv_device_base(device), 475 ttm_dma->dma_address[i], PAGE_SIZE, DMA_TO_DEVICE); 476 } 477 478 void 479 nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo) 480 { 481 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev); 482 struct nvkm_device *device = nvxx_device(&drm->device); 483 struct ttm_dma_tt *ttm_dma = (struct ttm_dma_tt *)nvbo->bo.ttm; 484 int i; 485 486 if (!ttm_dma) 487 return; 488 489 /* Don't waste time looping if the object is coherent */ 490 if (nvbo->force_coherent) 491 return; 492 493 for (i = 0; i < ttm_dma->ttm.num_pages; i++) 494 dma_sync_single_for_cpu(nv_device_base(device), 495 ttm_dma->dma_address[i], PAGE_SIZE, DMA_FROM_DEVICE); 496 } 497 498 int 499 nouveau_bo_validate(struct nouveau_bo *nvbo, bool interruptible, 500 bool no_wait_gpu) 501 { 502 int ret; 503 504 ret = ttm_bo_validate(&nvbo->bo, &nvbo->placement, 505 interruptible, no_wait_gpu); 506 if (ret) 507 return ret; 508 509 nouveau_bo_sync_for_device(nvbo); 510 511 return 0; 512 } 513 514 static inline void * 515 _nouveau_bo_mem_index(struct nouveau_bo *nvbo, unsigned index, void *mem, u8 sz) 516 { 517 struct ttm_dma_tt *dma_tt; 518 u8 *m = mem; 519 520 index *= sz; 521 522 if (m) { 523 /* kmap'd address, return the corresponding offset */ 524 m += index; 525 } else { 526 /* DMA-API mapping, lookup the right address */ 527 dma_tt = (struct ttm_dma_tt *)nvbo->bo.ttm; 528 m = dma_tt->cpu_address[index / PAGE_SIZE]; 529 m += index % PAGE_SIZE; 530 } 531 532 return m; 533 } 534 #define nouveau_bo_mem_index(o, i, m) _nouveau_bo_mem_index(o, i, m, sizeof(*m)) 535 536 void 537 nouveau_bo_wr16(struct nouveau_bo *nvbo, unsigned index, u16 val) 538 { 539 bool is_iomem; 540 u16 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem); 541 542 mem = nouveau_bo_mem_index(nvbo, index, mem); 543 544 if (is_iomem) 545 iowrite16_native(val, (void __force __iomem *)mem); 546 else 547 *mem = val; 548 } 549 550 u32 551 nouveau_bo_rd32(struct nouveau_bo *nvbo, unsigned index) 552 { 553 bool is_iomem; 554 u32 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem); 555 556 mem = nouveau_bo_mem_index(nvbo, index, mem); 557 558 if (is_iomem) 559 return ioread32_native((void __force __iomem *)mem); 560 else 561 return *mem; 562 } 563 564 void 565 nouveau_bo_wr32(struct nouveau_bo *nvbo, unsigned index, u32 val) 566 { 567 bool is_iomem; 568 u32 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem); 569 570 mem = nouveau_bo_mem_index(nvbo, index, mem); 571 572 if (is_iomem) 573 iowrite32_native(val, (void __force __iomem *)mem); 574 else 575 *mem = val; 576 } 577 578 static struct ttm_tt * 579 nouveau_ttm_tt_create(struct ttm_bo_device *bdev, unsigned long size, 580 uint32_t page_flags, struct page *dummy_read) 581 { 582 #if __OS_HAS_AGP 583 struct nouveau_drm *drm = nouveau_bdev(bdev); 584 struct drm_device *dev = drm->dev; 585 586 if (drm->agp.stat == ENABLED) { 587 return ttm_agp_tt_create(bdev, dev->agp->bridge, size, 588 page_flags, dummy_read); 589 } 590 #endif 591 592 return nouveau_sgdma_create_ttm(bdev, size, page_flags, dummy_read); 593 } 594 595 static int 596 nouveau_bo_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags) 597 { 598 /* We'll do this from user space. */ 599 return 0; 600 } 601 602 static int 603 nouveau_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type, 604 struct ttm_mem_type_manager *man) 605 { 606 struct nouveau_drm *drm = nouveau_bdev(bdev); 607 608 switch (type) { 609 case TTM_PL_SYSTEM: 610 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE; 611 man->available_caching = TTM_PL_MASK_CACHING; 612 man->default_caching = TTM_PL_FLAG_CACHED; 613 break; 614 case TTM_PL_VRAM: 615 man->flags = TTM_MEMTYPE_FLAG_FIXED | 616 TTM_MEMTYPE_FLAG_MAPPABLE; 617 man->available_caching = TTM_PL_FLAG_UNCACHED | 618 TTM_PL_FLAG_WC; 619 man->default_caching = TTM_PL_FLAG_WC; 620 621 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 622 /* Some BARs do not support being ioremapped WC */ 623 if (nvxx_bar(&drm->device)->iomap_uncached) { 624 man->available_caching = TTM_PL_FLAG_UNCACHED; 625 man->default_caching = TTM_PL_FLAG_UNCACHED; 626 } 627 628 man->func = &nouveau_vram_manager; 629 man->io_reserve_fastpath = false; 630 man->use_io_reserve_lru = true; 631 } else { 632 man->func = &ttm_bo_manager_func; 633 } 634 break; 635 case TTM_PL_TT: 636 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) 637 man->func = &nouveau_gart_manager; 638 else 639 if (drm->agp.stat != ENABLED) 640 man->func = &nv04_gart_manager; 641 else 642 man->func = &ttm_bo_manager_func; 643 644 if (drm->agp.stat == ENABLED) { 645 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE; 646 man->available_caching = TTM_PL_FLAG_UNCACHED | 647 TTM_PL_FLAG_WC; 648 man->default_caching = TTM_PL_FLAG_WC; 649 } else { 650 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | 651 TTM_MEMTYPE_FLAG_CMA; 652 man->available_caching = TTM_PL_MASK_CACHING; 653 man->default_caching = TTM_PL_FLAG_CACHED; 654 } 655 656 break; 657 default: 658 return -EINVAL; 659 } 660 return 0; 661 } 662 663 static void 664 nouveau_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl) 665 { 666 struct nouveau_bo *nvbo = nouveau_bo(bo); 667 668 switch (bo->mem.mem_type) { 669 case TTM_PL_VRAM: 670 nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_TT, 671 TTM_PL_FLAG_SYSTEM); 672 break; 673 default: 674 nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_SYSTEM, 0); 675 break; 676 } 677 678 *pl = nvbo->placement; 679 } 680 681 682 static int 683 nve0_bo_move_init(struct nouveau_channel *chan, u32 handle) 684 { 685 int ret = RING_SPACE(chan, 2); 686 if (ret == 0) { 687 BEGIN_NVC0(chan, NvSubCopy, 0x0000, 1); 688 OUT_RING (chan, handle & 0x0000ffff); 689 FIRE_RING (chan); 690 } 691 return ret; 692 } 693 694 static int 695 nve0_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo, 696 struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem) 697 { 698 struct nvkm_mem *node = old_mem->mm_node; 699 int ret = RING_SPACE(chan, 10); 700 if (ret == 0) { 701 BEGIN_NVC0(chan, NvSubCopy, 0x0400, 8); 702 OUT_RING (chan, upper_32_bits(node->vma[0].offset)); 703 OUT_RING (chan, lower_32_bits(node->vma[0].offset)); 704 OUT_RING (chan, upper_32_bits(node->vma[1].offset)); 705 OUT_RING (chan, lower_32_bits(node->vma[1].offset)); 706 OUT_RING (chan, PAGE_SIZE); 707 OUT_RING (chan, PAGE_SIZE); 708 OUT_RING (chan, PAGE_SIZE); 709 OUT_RING (chan, new_mem->num_pages); 710 BEGIN_IMC0(chan, NvSubCopy, 0x0300, 0x0386); 711 } 712 return ret; 713 } 714 715 static int 716 nvc0_bo_move_init(struct nouveau_channel *chan, u32 handle) 717 { 718 int ret = RING_SPACE(chan, 2); 719 if (ret == 0) { 720 BEGIN_NVC0(chan, NvSubCopy, 0x0000, 1); 721 OUT_RING (chan, handle); 722 } 723 return ret; 724 } 725 726 static int 727 nvc0_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo, 728 struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem) 729 { 730 struct nvkm_mem *node = old_mem->mm_node; 731 u64 src_offset = node->vma[0].offset; 732 u64 dst_offset = node->vma[1].offset; 733 u32 page_count = new_mem->num_pages; 734 int ret; 735 736 page_count = new_mem->num_pages; 737 while (page_count) { 738 int line_count = (page_count > 8191) ? 8191 : page_count; 739 740 ret = RING_SPACE(chan, 11); 741 if (ret) 742 return ret; 743 744 BEGIN_NVC0(chan, NvSubCopy, 0x030c, 8); 745 OUT_RING (chan, upper_32_bits(src_offset)); 746 OUT_RING (chan, lower_32_bits(src_offset)); 747 OUT_RING (chan, upper_32_bits(dst_offset)); 748 OUT_RING (chan, lower_32_bits(dst_offset)); 749 OUT_RING (chan, PAGE_SIZE); 750 OUT_RING (chan, PAGE_SIZE); 751 OUT_RING (chan, PAGE_SIZE); 752 OUT_RING (chan, line_count); 753 BEGIN_NVC0(chan, NvSubCopy, 0x0300, 1); 754 OUT_RING (chan, 0x00000110); 755 756 page_count -= line_count; 757 src_offset += (PAGE_SIZE * line_count); 758 dst_offset += (PAGE_SIZE * line_count); 759 } 760 761 return 0; 762 } 763 764 static int 765 nvc0_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo, 766 struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem) 767 { 768 struct nvkm_mem *node = old_mem->mm_node; 769 u64 src_offset = node->vma[0].offset; 770 u64 dst_offset = node->vma[1].offset; 771 u32 page_count = new_mem->num_pages; 772 int ret; 773 774 page_count = new_mem->num_pages; 775 while (page_count) { 776 int line_count = (page_count > 2047) ? 2047 : page_count; 777 778 ret = RING_SPACE(chan, 12); 779 if (ret) 780 return ret; 781 782 BEGIN_NVC0(chan, NvSubCopy, 0x0238, 2); 783 OUT_RING (chan, upper_32_bits(dst_offset)); 784 OUT_RING (chan, lower_32_bits(dst_offset)); 785 BEGIN_NVC0(chan, NvSubCopy, 0x030c, 6); 786 OUT_RING (chan, upper_32_bits(src_offset)); 787 OUT_RING (chan, lower_32_bits(src_offset)); 788 OUT_RING (chan, PAGE_SIZE); /* src_pitch */ 789 OUT_RING (chan, PAGE_SIZE); /* dst_pitch */ 790 OUT_RING (chan, PAGE_SIZE); /* line_length */ 791 OUT_RING (chan, line_count); 792 BEGIN_NVC0(chan, NvSubCopy, 0x0300, 1); 793 OUT_RING (chan, 0x00100110); 794 795 page_count -= line_count; 796 src_offset += (PAGE_SIZE * line_count); 797 dst_offset += (PAGE_SIZE * line_count); 798 } 799 800 return 0; 801 } 802 803 static int 804 nva3_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo, 805 struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem) 806 { 807 struct nvkm_mem *node = old_mem->mm_node; 808 u64 src_offset = node->vma[0].offset; 809 u64 dst_offset = node->vma[1].offset; 810 u32 page_count = new_mem->num_pages; 811 int ret; 812 813 page_count = new_mem->num_pages; 814 while (page_count) { 815 int line_count = (page_count > 8191) ? 8191 : page_count; 816 817 ret = RING_SPACE(chan, 11); 818 if (ret) 819 return ret; 820 821 BEGIN_NV04(chan, NvSubCopy, 0x030c, 8); 822 OUT_RING (chan, upper_32_bits(src_offset)); 823 OUT_RING (chan, lower_32_bits(src_offset)); 824 OUT_RING (chan, upper_32_bits(dst_offset)); 825 OUT_RING (chan, lower_32_bits(dst_offset)); 826 OUT_RING (chan, PAGE_SIZE); 827 OUT_RING (chan, PAGE_SIZE); 828 OUT_RING (chan, PAGE_SIZE); 829 OUT_RING (chan, line_count); 830 BEGIN_NV04(chan, NvSubCopy, 0x0300, 1); 831 OUT_RING (chan, 0x00000110); 832 833 page_count -= line_count; 834 src_offset += (PAGE_SIZE * line_count); 835 dst_offset += (PAGE_SIZE * line_count); 836 } 837 838 return 0; 839 } 840 841 static int 842 nv98_bo_move_exec(struct nouveau_channel *chan, struct ttm_buffer_object *bo, 843 struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem) 844 { 845 struct nvkm_mem *node = old_mem->mm_node; 846 int ret = RING_SPACE(chan, 7); 847 if (ret == 0) { 848 BEGIN_NV04(chan, NvSubCopy, 0x0320, 6); 849 OUT_RING (chan, upper_32_bits(node->vma[0].offset)); 850 OUT_RING (chan, lower_32_bits(node->vma[0].offset)); 851 OUT_RING (chan, upper_32_bits(node->vma[1].offset)); 852 OUT_RING (chan, lower_32_bits(node->vma[1].offset)); 853 OUT_RING (chan, 0x00000000 /* COPY */); 854 OUT_RING (chan, new_mem->num_pages << PAGE_SHIFT); 855 } 856 return ret; 857 } 858 859 static int 860 nv84_bo_move_exec(struct nouveau_channel *chan, struct ttm_buffer_object *bo, 861 struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem) 862 { 863 struct nvkm_mem *node = old_mem->mm_node; 864 int ret = RING_SPACE(chan, 7); 865 if (ret == 0) { 866 BEGIN_NV04(chan, NvSubCopy, 0x0304, 6); 867 OUT_RING (chan, new_mem->num_pages << PAGE_SHIFT); 868 OUT_RING (chan, upper_32_bits(node->vma[0].offset)); 869 OUT_RING (chan, lower_32_bits(node->vma[0].offset)); 870 OUT_RING (chan, upper_32_bits(node->vma[1].offset)); 871 OUT_RING (chan, lower_32_bits(node->vma[1].offset)); 872 OUT_RING (chan, 0x00000000 /* MODE_COPY, QUERY_NONE */); 873 } 874 return ret; 875 } 876 877 static int 878 nv50_bo_move_init(struct nouveau_channel *chan, u32 handle) 879 { 880 int ret = RING_SPACE(chan, 6); 881 if (ret == 0) { 882 BEGIN_NV04(chan, NvSubCopy, 0x0000, 1); 883 OUT_RING (chan, handle); 884 BEGIN_NV04(chan, NvSubCopy, 0x0180, 3); 885 OUT_RING (chan, chan->drm->ntfy.handle); 886 OUT_RING (chan, chan->vram.handle); 887 OUT_RING (chan, chan->vram.handle); 888 } 889 890 return ret; 891 } 892 893 static int 894 nv50_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo, 895 struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem) 896 { 897 struct nvkm_mem *node = old_mem->mm_node; 898 u64 length = (new_mem->num_pages << PAGE_SHIFT); 899 u64 src_offset = node->vma[0].offset; 900 u64 dst_offset = node->vma[1].offset; 901 int src_tiled = !!node->memtype; 902 int dst_tiled = !!((struct nvkm_mem *)new_mem->mm_node)->memtype; 903 int ret; 904 905 while (length) { 906 u32 amount, stride, height; 907 908 ret = RING_SPACE(chan, 18 + 6 * (src_tiled + dst_tiled)); 909 if (ret) 910 return ret; 911 912 amount = min(length, (u64)(4 * 1024 * 1024)); 913 stride = 16 * 4; 914 height = amount / stride; 915 916 if (src_tiled) { 917 BEGIN_NV04(chan, NvSubCopy, 0x0200, 7); 918 OUT_RING (chan, 0); 919 OUT_RING (chan, 0); 920 OUT_RING (chan, stride); 921 OUT_RING (chan, height); 922 OUT_RING (chan, 1); 923 OUT_RING (chan, 0); 924 OUT_RING (chan, 0); 925 } else { 926 BEGIN_NV04(chan, NvSubCopy, 0x0200, 1); 927 OUT_RING (chan, 1); 928 } 929 if (dst_tiled) { 930 BEGIN_NV04(chan, NvSubCopy, 0x021c, 7); 931 OUT_RING (chan, 0); 932 OUT_RING (chan, 0); 933 OUT_RING (chan, stride); 934 OUT_RING (chan, height); 935 OUT_RING (chan, 1); 936 OUT_RING (chan, 0); 937 OUT_RING (chan, 0); 938 } else { 939 BEGIN_NV04(chan, NvSubCopy, 0x021c, 1); 940 OUT_RING (chan, 1); 941 } 942 943 BEGIN_NV04(chan, NvSubCopy, 0x0238, 2); 944 OUT_RING (chan, upper_32_bits(src_offset)); 945 OUT_RING (chan, upper_32_bits(dst_offset)); 946 BEGIN_NV04(chan, NvSubCopy, 0x030c, 8); 947 OUT_RING (chan, lower_32_bits(src_offset)); 948 OUT_RING (chan, lower_32_bits(dst_offset)); 949 OUT_RING (chan, stride); 950 OUT_RING (chan, stride); 951 OUT_RING (chan, stride); 952 OUT_RING (chan, height); 953 OUT_RING (chan, 0x00000101); 954 OUT_RING (chan, 0x00000000); 955 BEGIN_NV04(chan, NvSubCopy, NV_MEMORY_TO_MEMORY_FORMAT_NOP, 1); 956 OUT_RING (chan, 0); 957 958 length -= amount; 959 src_offset += amount; 960 dst_offset += amount; 961 } 962 963 return 0; 964 } 965 966 static int 967 nv04_bo_move_init(struct nouveau_channel *chan, u32 handle) 968 { 969 int ret = RING_SPACE(chan, 4); 970 if (ret == 0) { 971 BEGIN_NV04(chan, NvSubCopy, 0x0000, 1); 972 OUT_RING (chan, handle); 973 BEGIN_NV04(chan, NvSubCopy, 0x0180, 1); 974 OUT_RING (chan, chan->drm->ntfy.handle); 975 } 976 977 return ret; 978 } 979 980 static inline uint32_t 981 nouveau_bo_mem_ctxdma(struct ttm_buffer_object *bo, 982 struct nouveau_channel *chan, struct ttm_mem_reg *mem) 983 { 984 if (mem->mem_type == TTM_PL_TT) 985 return NvDmaTT; 986 return chan->vram.handle; 987 } 988 989 static int 990 nv04_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo, 991 struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem) 992 { 993 u32 src_offset = old_mem->start << PAGE_SHIFT; 994 u32 dst_offset = new_mem->start << PAGE_SHIFT; 995 u32 page_count = new_mem->num_pages; 996 int ret; 997 998 ret = RING_SPACE(chan, 3); 999 if (ret) 1000 return ret; 1001 1002 BEGIN_NV04(chan, NvSubCopy, NV_MEMORY_TO_MEMORY_FORMAT_DMA_SOURCE, 2); 1003 OUT_RING (chan, nouveau_bo_mem_ctxdma(bo, chan, old_mem)); 1004 OUT_RING (chan, nouveau_bo_mem_ctxdma(bo, chan, new_mem)); 1005 1006 page_count = new_mem->num_pages; 1007 while (page_count) { 1008 int line_count = (page_count > 2047) ? 2047 : page_count; 1009 1010 ret = RING_SPACE(chan, 11); 1011 if (ret) 1012 return ret; 1013 1014 BEGIN_NV04(chan, NvSubCopy, 1015 NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8); 1016 OUT_RING (chan, src_offset); 1017 OUT_RING (chan, dst_offset); 1018 OUT_RING (chan, PAGE_SIZE); /* src_pitch */ 1019 OUT_RING (chan, PAGE_SIZE); /* dst_pitch */ 1020 OUT_RING (chan, PAGE_SIZE); /* line_length */ 1021 OUT_RING (chan, line_count); 1022 OUT_RING (chan, 0x00000101); 1023 OUT_RING (chan, 0x00000000); 1024 BEGIN_NV04(chan, NvSubCopy, NV_MEMORY_TO_MEMORY_FORMAT_NOP, 1); 1025 OUT_RING (chan, 0); 1026 1027 page_count -= line_count; 1028 src_offset += (PAGE_SIZE * line_count); 1029 dst_offset += (PAGE_SIZE * line_count); 1030 } 1031 1032 return 0; 1033 } 1034 1035 static int 1036 nouveau_bo_move_prep(struct nouveau_drm *drm, struct ttm_buffer_object *bo, 1037 struct ttm_mem_reg *mem) 1038 { 1039 struct nvkm_mem *old_node = bo->mem.mm_node; 1040 struct nvkm_mem *new_node = mem->mm_node; 1041 u64 size = (u64)mem->num_pages << PAGE_SHIFT; 1042 int ret; 1043 1044 ret = nvkm_vm_get(drm->client.vm, size, old_node->page_shift, 1045 NV_MEM_ACCESS_RW, &old_node->vma[0]); 1046 if (ret) 1047 return ret; 1048 1049 ret = nvkm_vm_get(drm->client.vm, size, new_node->page_shift, 1050 NV_MEM_ACCESS_RW, &old_node->vma[1]); 1051 if (ret) { 1052 nvkm_vm_put(&old_node->vma[0]); 1053 return ret; 1054 } 1055 1056 nvkm_vm_map(&old_node->vma[0], old_node); 1057 nvkm_vm_map(&old_node->vma[1], new_node); 1058 return 0; 1059 } 1060 1061 static int 1062 nouveau_bo_move_m2mf(struct ttm_buffer_object *bo, int evict, bool intr, 1063 bool no_wait_gpu, struct ttm_mem_reg *new_mem) 1064 { 1065 struct nouveau_drm *drm = nouveau_bdev(bo->bdev); 1066 struct nouveau_channel *chan = drm->ttm.chan; 1067 struct nouveau_cli *cli = (void *)nvif_client(&chan->device->base); 1068 struct nouveau_fence *fence; 1069 int ret; 1070 1071 /* create temporary vmas for the transfer and attach them to the 1072 * old nvkm_mem node, these will get cleaned up after ttm has 1073 * destroyed the ttm_mem_reg 1074 */ 1075 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 1076 ret = nouveau_bo_move_prep(drm, bo, new_mem); 1077 if (ret) 1078 return ret; 1079 } 1080 1081 mutex_lock_nested(&cli->mutex, SINGLE_DEPTH_NESTING); 1082 ret = nouveau_fence_sync(nouveau_bo(bo), chan, true, intr); 1083 if (ret == 0) { 1084 ret = drm->ttm.move(chan, bo, &bo->mem, new_mem); 1085 if (ret == 0) { 1086 ret = nouveau_fence_new(chan, false, &fence); 1087 if (ret == 0) { 1088 ret = ttm_bo_move_accel_cleanup(bo, 1089 &fence->base, 1090 evict, 1091 no_wait_gpu, 1092 new_mem); 1093 nouveau_fence_unref(&fence); 1094 } 1095 } 1096 } 1097 mutex_unlock(&cli->mutex); 1098 return ret; 1099 } 1100 1101 void 1102 nouveau_bo_move_init(struct nouveau_drm *drm) 1103 { 1104 static const struct { 1105 const char *name; 1106 int engine; 1107 u32 oclass; 1108 int (*exec)(struct nouveau_channel *, 1109 struct ttm_buffer_object *, 1110 struct ttm_mem_reg *, struct ttm_mem_reg *); 1111 int (*init)(struct nouveau_channel *, u32 handle); 1112 } _methods[] = { 1113 { "COPY", 4, 0xb0b5, nve0_bo_move_copy, nve0_bo_move_init }, 1114 { "GRCE", 0, 0xb0b5, nve0_bo_move_copy, nvc0_bo_move_init }, 1115 { "COPY", 4, 0xa0b5, nve0_bo_move_copy, nve0_bo_move_init }, 1116 { "GRCE", 0, 0xa0b5, nve0_bo_move_copy, nvc0_bo_move_init }, 1117 { "COPY1", 5, 0x90b8, nvc0_bo_move_copy, nvc0_bo_move_init }, 1118 { "COPY0", 4, 0x90b5, nvc0_bo_move_copy, nvc0_bo_move_init }, 1119 { "COPY", 0, 0x85b5, nva3_bo_move_copy, nv50_bo_move_init }, 1120 { "CRYPT", 0, 0x74c1, nv84_bo_move_exec, nv50_bo_move_init }, 1121 { "M2MF", 0, 0x9039, nvc0_bo_move_m2mf, nvc0_bo_move_init }, 1122 { "M2MF", 0, 0x5039, nv50_bo_move_m2mf, nv50_bo_move_init }, 1123 { "M2MF", 0, 0x0039, nv04_bo_move_m2mf, nv04_bo_move_init }, 1124 {}, 1125 { "CRYPT", 0, 0x88b4, nv98_bo_move_exec, nv50_bo_move_init }, 1126 }, *mthd = _methods; 1127 const char *name = "CPU"; 1128 int ret; 1129 1130 do { 1131 struct nouveau_channel *chan; 1132 1133 if (mthd->engine) 1134 chan = drm->cechan; 1135 else 1136 chan = drm->channel; 1137 if (chan == NULL) 1138 continue; 1139 1140 ret = nvif_object_init(chan->object, NULL, 1141 mthd->oclass | (mthd->engine << 16), 1142 mthd->oclass, NULL, 0, 1143 &drm->ttm.copy); 1144 if (ret == 0) { 1145 ret = mthd->init(chan, drm->ttm.copy.handle); 1146 if (ret) { 1147 nvif_object_fini(&drm->ttm.copy); 1148 continue; 1149 } 1150 1151 drm->ttm.move = mthd->exec; 1152 drm->ttm.chan = chan; 1153 name = mthd->name; 1154 break; 1155 } 1156 } while ((++mthd)->exec); 1157 1158 NV_INFO(drm, "MM: using %s for buffer copies\n", name); 1159 } 1160 1161 static int 1162 nouveau_bo_move_flipd(struct ttm_buffer_object *bo, bool evict, bool intr, 1163 bool no_wait_gpu, struct ttm_mem_reg *new_mem) 1164 { 1165 struct ttm_place placement_memtype = { 1166 .fpfn = 0, 1167 .lpfn = 0, 1168 .flags = TTM_PL_FLAG_TT | TTM_PL_MASK_CACHING 1169 }; 1170 struct ttm_placement placement; 1171 struct ttm_mem_reg tmp_mem; 1172 int ret; 1173 1174 placement.num_placement = placement.num_busy_placement = 1; 1175 placement.placement = placement.busy_placement = &placement_memtype; 1176 1177 tmp_mem = *new_mem; 1178 tmp_mem.mm_node = NULL; 1179 ret = ttm_bo_mem_space(bo, &placement, &tmp_mem, intr, no_wait_gpu); 1180 if (ret) 1181 return ret; 1182 1183 ret = ttm_tt_bind(bo->ttm, &tmp_mem); 1184 if (ret) 1185 goto out; 1186 1187 ret = nouveau_bo_move_m2mf(bo, true, intr, no_wait_gpu, &tmp_mem); 1188 if (ret) 1189 goto out; 1190 1191 ret = ttm_bo_move_ttm(bo, true, no_wait_gpu, new_mem); 1192 out: 1193 ttm_bo_mem_put(bo, &tmp_mem); 1194 return ret; 1195 } 1196 1197 static int 1198 nouveau_bo_move_flips(struct ttm_buffer_object *bo, bool evict, bool intr, 1199 bool no_wait_gpu, struct ttm_mem_reg *new_mem) 1200 { 1201 struct ttm_place placement_memtype = { 1202 .fpfn = 0, 1203 .lpfn = 0, 1204 .flags = TTM_PL_FLAG_TT | TTM_PL_MASK_CACHING 1205 }; 1206 struct ttm_placement placement; 1207 struct ttm_mem_reg tmp_mem; 1208 int ret; 1209 1210 placement.num_placement = placement.num_busy_placement = 1; 1211 placement.placement = placement.busy_placement = &placement_memtype; 1212 1213 tmp_mem = *new_mem; 1214 tmp_mem.mm_node = NULL; 1215 ret = ttm_bo_mem_space(bo, &placement, &tmp_mem, intr, no_wait_gpu); 1216 if (ret) 1217 return ret; 1218 1219 ret = ttm_bo_move_ttm(bo, true, no_wait_gpu, &tmp_mem); 1220 if (ret) 1221 goto out; 1222 1223 ret = nouveau_bo_move_m2mf(bo, true, intr, no_wait_gpu, new_mem); 1224 if (ret) 1225 goto out; 1226 1227 out: 1228 ttm_bo_mem_put(bo, &tmp_mem); 1229 return ret; 1230 } 1231 1232 static void 1233 nouveau_bo_move_ntfy(struct ttm_buffer_object *bo, struct ttm_mem_reg *new_mem) 1234 { 1235 struct nouveau_bo *nvbo = nouveau_bo(bo); 1236 struct nvkm_vma *vma; 1237 1238 /* ttm can now (stupidly) pass the driver bos it didn't create... */ 1239 if (bo->destroy != nouveau_bo_del_ttm) 1240 return; 1241 1242 list_for_each_entry(vma, &nvbo->vma_list, head) { 1243 if (new_mem && new_mem->mem_type != TTM_PL_SYSTEM && 1244 (new_mem->mem_type == TTM_PL_VRAM || 1245 nvbo->page_shift != vma->vm->mmu->lpg_shift)) { 1246 nvkm_vm_map(vma, new_mem->mm_node); 1247 } else { 1248 nvkm_vm_unmap(vma); 1249 } 1250 } 1251 } 1252 1253 static int 1254 nouveau_bo_vm_bind(struct ttm_buffer_object *bo, struct ttm_mem_reg *new_mem, 1255 struct nouveau_drm_tile **new_tile) 1256 { 1257 struct nouveau_drm *drm = nouveau_bdev(bo->bdev); 1258 struct drm_device *dev = drm->dev; 1259 struct nouveau_bo *nvbo = nouveau_bo(bo); 1260 u64 offset = new_mem->start << PAGE_SHIFT; 1261 1262 *new_tile = NULL; 1263 if (new_mem->mem_type != TTM_PL_VRAM) 1264 return 0; 1265 1266 if (drm->device.info.family >= NV_DEVICE_INFO_V0_CELSIUS) { 1267 *new_tile = nv10_bo_set_tiling(dev, offset, new_mem->size, 1268 nvbo->tile_mode, 1269 nvbo->tile_flags); 1270 } 1271 1272 return 0; 1273 } 1274 1275 static void 1276 nouveau_bo_vm_cleanup(struct ttm_buffer_object *bo, 1277 struct nouveau_drm_tile *new_tile, 1278 struct nouveau_drm_tile **old_tile) 1279 { 1280 struct nouveau_drm *drm = nouveau_bdev(bo->bdev); 1281 struct drm_device *dev = drm->dev; 1282 struct fence *fence = reservation_object_get_excl(bo->resv); 1283 1284 nv10_bo_put_tile_region(dev, *old_tile, fence); 1285 *old_tile = new_tile; 1286 } 1287 1288 static int 1289 nouveau_bo_move(struct ttm_buffer_object *bo, bool evict, bool intr, 1290 bool no_wait_gpu, struct ttm_mem_reg *new_mem) 1291 { 1292 struct nouveau_drm *drm = nouveau_bdev(bo->bdev); 1293 struct nouveau_bo *nvbo = nouveau_bo(bo); 1294 struct ttm_mem_reg *old_mem = &bo->mem; 1295 struct nouveau_drm_tile *new_tile = NULL; 1296 int ret = 0; 1297 1298 if (nvbo->pin_refcnt) 1299 NV_WARN(drm, "Moving pinned object %p!\n", nvbo); 1300 1301 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) { 1302 ret = nouveau_bo_vm_bind(bo, new_mem, &new_tile); 1303 if (ret) 1304 return ret; 1305 } 1306 1307 /* Fake bo copy. */ 1308 if (old_mem->mem_type == TTM_PL_SYSTEM && !bo->ttm) { 1309 BUG_ON(bo->mem.mm_node != NULL); 1310 bo->mem = *new_mem; 1311 new_mem->mm_node = NULL; 1312 goto out; 1313 } 1314 1315 /* Hardware assisted copy. */ 1316 if (drm->ttm.move) { 1317 if (new_mem->mem_type == TTM_PL_SYSTEM) 1318 ret = nouveau_bo_move_flipd(bo, evict, intr, 1319 no_wait_gpu, new_mem); 1320 else if (old_mem->mem_type == TTM_PL_SYSTEM) 1321 ret = nouveau_bo_move_flips(bo, evict, intr, 1322 no_wait_gpu, new_mem); 1323 else 1324 ret = nouveau_bo_move_m2mf(bo, evict, intr, 1325 no_wait_gpu, new_mem); 1326 if (!ret) 1327 goto out; 1328 } 1329 1330 /* Fallback to software copy. */ 1331 ret = ttm_bo_wait(bo, true, intr, no_wait_gpu); 1332 if (ret == 0) 1333 ret = ttm_bo_move_memcpy(bo, evict, no_wait_gpu, new_mem); 1334 1335 out: 1336 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) { 1337 if (ret) 1338 nouveau_bo_vm_cleanup(bo, NULL, &new_tile); 1339 else 1340 nouveau_bo_vm_cleanup(bo, new_tile, &nvbo->tile); 1341 } 1342 1343 return ret; 1344 } 1345 1346 static int 1347 nouveau_bo_verify_access(struct ttm_buffer_object *bo, struct file *filp) 1348 { 1349 struct nouveau_bo *nvbo = nouveau_bo(bo); 1350 1351 return drm_vma_node_verify_access(&nvbo->gem.vma_node, filp); 1352 } 1353 1354 static int 1355 nouveau_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem) 1356 { 1357 struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type]; 1358 struct nouveau_drm *drm = nouveau_bdev(bdev); 1359 struct nvkm_mem *node = mem->mm_node; 1360 int ret; 1361 1362 mem->bus.addr = NULL; 1363 mem->bus.offset = 0; 1364 mem->bus.size = mem->num_pages << PAGE_SHIFT; 1365 mem->bus.base = 0; 1366 mem->bus.is_iomem = false; 1367 if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE)) 1368 return -EINVAL; 1369 switch (mem->mem_type) { 1370 case TTM_PL_SYSTEM: 1371 /* System memory */ 1372 return 0; 1373 case TTM_PL_TT: 1374 #if __OS_HAS_AGP 1375 if (drm->agp.stat == ENABLED) { 1376 mem->bus.offset = mem->start << PAGE_SHIFT; 1377 mem->bus.base = drm->agp.base; 1378 mem->bus.is_iomem = !drm->dev->agp->cant_use_aperture; 1379 } 1380 #endif 1381 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA || !node->memtype) 1382 /* untiled */ 1383 break; 1384 /* fallthrough, tiled memory */ 1385 case TTM_PL_VRAM: 1386 mem->bus.offset = mem->start << PAGE_SHIFT; 1387 mem->bus.base = nv_device_resource_start(nvxx_device(&drm->device), 1); 1388 mem->bus.is_iomem = true; 1389 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 1390 struct nvkm_bar *bar = nvxx_bar(&drm->device); 1391 1392 ret = bar->umap(bar, node, NV_MEM_ACCESS_RW, 1393 &node->bar_vma); 1394 if (ret) 1395 return ret; 1396 1397 mem->bus.offset = node->bar_vma.offset; 1398 } 1399 break; 1400 default: 1401 return -EINVAL; 1402 } 1403 return 0; 1404 } 1405 1406 static void 1407 nouveau_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem) 1408 { 1409 struct nouveau_drm *drm = nouveau_bdev(bdev); 1410 struct nvkm_bar *bar = nvxx_bar(&drm->device); 1411 struct nvkm_mem *node = mem->mm_node; 1412 1413 if (!node->bar_vma.node) 1414 return; 1415 1416 bar->unmap(bar, &node->bar_vma); 1417 } 1418 1419 static int 1420 nouveau_ttm_fault_reserve_notify(struct ttm_buffer_object *bo) 1421 { 1422 struct nouveau_drm *drm = nouveau_bdev(bo->bdev); 1423 struct nouveau_bo *nvbo = nouveau_bo(bo); 1424 struct nvif_device *device = &drm->device; 1425 u32 mappable = nv_device_resource_len(nvxx_device(device), 1) >> PAGE_SHIFT; 1426 int i, ret; 1427 1428 /* as long as the bo isn't in vram, and isn't tiled, we've got 1429 * nothing to do here. 1430 */ 1431 if (bo->mem.mem_type != TTM_PL_VRAM) { 1432 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA || 1433 !nouveau_bo_tile_layout(nvbo)) 1434 return 0; 1435 1436 if (bo->mem.mem_type == TTM_PL_SYSTEM) { 1437 nouveau_bo_placement_set(nvbo, TTM_PL_TT, 0); 1438 1439 ret = nouveau_bo_validate(nvbo, false, false); 1440 if (ret) 1441 return ret; 1442 } 1443 return 0; 1444 } 1445 1446 /* make sure bo is in mappable vram */ 1447 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA || 1448 bo->mem.start + bo->mem.num_pages < mappable) 1449 return 0; 1450 1451 for (i = 0; i < nvbo->placement.num_placement; ++i) { 1452 nvbo->placements[i].fpfn = 0; 1453 nvbo->placements[i].lpfn = mappable; 1454 } 1455 1456 for (i = 0; i < nvbo->placement.num_busy_placement; ++i) { 1457 nvbo->busy_placements[i].fpfn = 0; 1458 nvbo->busy_placements[i].lpfn = mappable; 1459 } 1460 1461 nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_VRAM, 0); 1462 return nouveau_bo_validate(nvbo, false, false); 1463 } 1464 1465 static int 1466 nouveau_ttm_tt_populate(struct ttm_tt *ttm) 1467 { 1468 struct ttm_dma_tt *ttm_dma = (void *)ttm; 1469 struct nouveau_drm *drm; 1470 struct nvkm_device *device; 1471 struct drm_device *dev; 1472 struct device *pdev; 1473 unsigned i; 1474 int r; 1475 bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG); 1476 1477 if (ttm->state != tt_unpopulated) 1478 return 0; 1479 1480 if (slave && ttm->sg) { 1481 /* make userspace faulting work */ 1482 drm_prime_sg_to_page_addr_arrays(ttm->sg, ttm->pages, 1483 ttm_dma->dma_address, ttm->num_pages); 1484 ttm->state = tt_unbound; 1485 return 0; 1486 } 1487 1488 drm = nouveau_bdev(ttm->bdev); 1489 device = nvxx_device(&drm->device); 1490 dev = drm->dev; 1491 pdev = nv_device_base(device); 1492 1493 /* 1494 * Objects matching this condition have been marked as force_coherent, 1495 * so use the DMA API for them. 1496 */ 1497 if (!nv_device_is_cpu_coherent(device) && 1498 ttm->caching_state == tt_uncached) 1499 return ttm_dma_populate(ttm_dma, dev->dev); 1500 1501 #if __OS_HAS_AGP 1502 if (drm->agp.stat == ENABLED) { 1503 return ttm_agp_tt_populate(ttm); 1504 } 1505 #endif 1506 1507 #ifdef CONFIG_SWIOTLB 1508 if (swiotlb_nr_tbl()) { 1509 return ttm_dma_populate((void *)ttm, dev->dev); 1510 } 1511 #endif 1512 1513 r = ttm_pool_populate(ttm); 1514 if (r) { 1515 return r; 1516 } 1517 1518 for (i = 0; i < ttm->num_pages; i++) { 1519 dma_addr_t addr; 1520 1521 addr = dma_map_page(pdev, ttm->pages[i], 0, PAGE_SIZE, 1522 DMA_BIDIRECTIONAL); 1523 1524 if (dma_mapping_error(pdev, addr)) { 1525 while (--i) { 1526 dma_unmap_page(pdev, ttm_dma->dma_address[i], 1527 PAGE_SIZE, DMA_BIDIRECTIONAL); 1528 ttm_dma->dma_address[i] = 0; 1529 } 1530 ttm_pool_unpopulate(ttm); 1531 return -EFAULT; 1532 } 1533 1534 ttm_dma->dma_address[i] = addr; 1535 } 1536 return 0; 1537 } 1538 1539 static void 1540 nouveau_ttm_tt_unpopulate(struct ttm_tt *ttm) 1541 { 1542 struct ttm_dma_tt *ttm_dma = (void *)ttm; 1543 struct nouveau_drm *drm; 1544 struct nvkm_device *device; 1545 struct drm_device *dev; 1546 struct device *pdev; 1547 unsigned i; 1548 bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG); 1549 1550 if (slave) 1551 return; 1552 1553 drm = nouveau_bdev(ttm->bdev); 1554 device = nvxx_device(&drm->device); 1555 dev = drm->dev; 1556 pdev = nv_device_base(device); 1557 1558 /* 1559 * Objects matching this condition have been marked as force_coherent, 1560 * so use the DMA API for them. 1561 */ 1562 if (!nv_device_is_cpu_coherent(device) && 1563 ttm->caching_state == tt_uncached) { 1564 ttm_dma_unpopulate(ttm_dma, dev->dev); 1565 return; 1566 } 1567 1568 #if __OS_HAS_AGP 1569 if (drm->agp.stat == ENABLED) { 1570 ttm_agp_tt_unpopulate(ttm); 1571 return; 1572 } 1573 #endif 1574 1575 #ifdef CONFIG_SWIOTLB 1576 if (swiotlb_nr_tbl()) { 1577 ttm_dma_unpopulate((void *)ttm, dev->dev); 1578 return; 1579 } 1580 #endif 1581 1582 for (i = 0; i < ttm->num_pages; i++) { 1583 if (ttm_dma->dma_address[i]) { 1584 dma_unmap_page(pdev, ttm_dma->dma_address[i], PAGE_SIZE, 1585 DMA_BIDIRECTIONAL); 1586 } 1587 } 1588 1589 ttm_pool_unpopulate(ttm); 1590 } 1591 1592 void 1593 nouveau_bo_fence(struct nouveau_bo *nvbo, struct nouveau_fence *fence, bool exclusive) 1594 { 1595 struct reservation_object *resv = nvbo->bo.resv; 1596 1597 if (exclusive) 1598 reservation_object_add_excl_fence(resv, &fence->base); 1599 else if (fence) 1600 reservation_object_add_shared_fence(resv, &fence->base); 1601 } 1602 1603 struct ttm_bo_driver nouveau_bo_driver = { 1604 .ttm_tt_create = &nouveau_ttm_tt_create, 1605 .ttm_tt_populate = &nouveau_ttm_tt_populate, 1606 .ttm_tt_unpopulate = &nouveau_ttm_tt_unpopulate, 1607 .invalidate_caches = nouveau_bo_invalidate_caches, 1608 .init_mem_type = nouveau_bo_init_mem_type, 1609 .evict_flags = nouveau_bo_evict_flags, 1610 .move_notify = nouveau_bo_move_ntfy, 1611 .move = nouveau_bo_move, 1612 .verify_access = nouveau_bo_verify_access, 1613 .fault_reserve_notify = &nouveau_ttm_fault_reserve_notify, 1614 .io_mem_reserve = &nouveau_ttm_io_mem_reserve, 1615 .io_mem_free = &nouveau_ttm_io_mem_free, 1616 }; 1617 1618 struct nvkm_vma * 1619 nouveau_bo_vma_find(struct nouveau_bo *nvbo, struct nvkm_vm *vm) 1620 { 1621 struct nvkm_vma *vma; 1622 list_for_each_entry(vma, &nvbo->vma_list, head) { 1623 if (vma->vm == vm) 1624 return vma; 1625 } 1626 1627 return NULL; 1628 } 1629 1630 int 1631 nouveau_bo_vma_add(struct nouveau_bo *nvbo, struct nvkm_vm *vm, 1632 struct nvkm_vma *vma) 1633 { 1634 const u32 size = nvbo->bo.mem.num_pages << PAGE_SHIFT; 1635 int ret; 1636 1637 ret = nvkm_vm_get(vm, size, nvbo->page_shift, 1638 NV_MEM_ACCESS_RW, vma); 1639 if (ret) 1640 return ret; 1641 1642 if ( nvbo->bo.mem.mem_type != TTM_PL_SYSTEM && 1643 (nvbo->bo.mem.mem_type == TTM_PL_VRAM || 1644 nvbo->page_shift != vma->vm->mmu->lpg_shift)) 1645 nvkm_vm_map(vma, nvbo->bo.mem.mm_node); 1646 1647 list_add_tail(&vma->head, &nvbo->vma_list); 1648 vma->refcount = 1; 1649 return 0; 1650 } 1651 1652 void 1653 nouveau_bo_vma_del(struct nouveau_bo *nvbo, struct nvkm_vma *vma) 1654 { 1655 if (vma->node) { 1656 if (nvbo->bo.mem.mem_type != TTM_PL_SYSTEM) 1657 nvkm_vm_unmap(vma); 1658 nvkm_vm_put(vma); 1659 list_del(&vma->head); 1660 } 1661 } 1662