drivers/gpu/drm/nouveau/nouveau_bo.c

   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_drv.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_device *device = nvxx_device(&drm->device);
  52         struct nvkm_fb *fb = device->fb;
  53         struct nvkm_fb_tile *tile = &fb->tile.region[i];
  54
  55         nouveau_fence_unref(&reg->fence);
  56
  57         if (tile->pitch)
  58                 nvkm_fb_tile_fini(fb, i, tile);
  59
  60         if (pitch)
  61                 nvkm_fb_tile_init(fb, i, addr, size, pitch, flags, tile);
  62
  63         nvkm_fb_tile_prog(fb, i, tile);
  64 }
  65
  66 static struct nouveau_drm_tile *
  67 nv10_bo_get_tile_region(struct drm_device *dev, int i)
  68 {
  69         struct nouveau_drm *drm = nouveau_drm(dev);
  70         struct nouveau_drm_tile *tile = &drm->tile.reg[i];
  71
  72         spin_lock(&drm->tile.lock);
  73
  74         if (!tile->used &&
  75             (!tile->fence || nouveau_fence_done(tile->fence)))
  76                 tile->used = true;
  77         else
  78                 tile = NULL;
  79
  80         spin_unlock(&drm->tile.lock);
  81         return tile;
  82 }
  83
  84 static void
  85 nv10_bo_put_tile_region(struct drm_device *dev, struct nouveau_drm_tile *tile,
  86                         struct fence *fence)
  87 {
  88         struct nouveau_drm *drm = nouveau_drm(dev);
  89
  90         if (tile) {
  91                 spin_lock(&drm->tile.lock);
  92                 tile->fence = (struct nouveau_fence *)fence_get(fence);
  93                 tile->used = false;
  94                 spin_unlock(&drm->tile.lock);
  95         }
  96 }
  97
  98 static struct nouveau_drm_tile *
  99 nv10_bo_set_tiling(struct drm_device *dev, u32 addr,
 100                    u32 size, u32 pitch, u32 flags)
 101 {
 102         struct nouveau_drm *drm = nouveau_drm(dev);
 103         struct nvkm_fb *fb = nvxx_fb(&drm->device);
 104         struct nouveau_drm_tile *tile, *found = NULL;
 105         int i;
 106
 107         for (i = 0; i < fb->tile.regions; i++) {
 108                 tile = nv10_bo_get_tile_region(dev, i);
 109
 110                 if (pitch && !found) {
 111                         found = tile;
 112                         continue;
 113
 114                 } else if (tile && fb->tile.region[i].pitch) {
 115                         /* Kill an unused tile region. */
 116                         nv10_bo_update_tile_region(dev, tile, 0, 0, 0, 0);
 117                 }
 118
 119                 nv10_bo_put_tile_region(dev, tile, NULL);
 120         }
 121
 122         if (found)
 123                 nv10_bo_update_tile_region(dev, found, addr, size,
 124                                             pitch, flags);
 125         return found;
 126 }
 127
 128 static void
 129 nouveau_bo_del_ttm(struct ttm_buffer_object *bo)
 130 {
 131         struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
 132         struct drm_device *dev = drm->dev;
 133         struct nouveau_bo *nvbo = nouveau_bo(bo);
 134
 135         if (unlikely(nvbo->gem.filp))
 136                 DRM_ERROR("bo %p still attached to GEM object\n", bo);
 137         WARN_ON(nvbo->pin_refcnt > 0);
 138         nv10_bo_put_tile_region(dev, nvbo->tile, NULL);
 139         kfree(nvbo);
 140 }
 141
 142 static void
 143 nouveau_bo_fixup_align(struct nouveau_bo *nvbo, u32 flags,
 144                        int *align, int *size)
 145 {
 146         struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
 147         struct nvif_device *device = &drm->device;
 148
 149         if (device->info.family < NV_DEVICE_INFO_V0_TESLA) {
 150                 if (nvbo->tile_mode) {
 151                         if (device->info.chipset >= 0x40) {
 152                                 *align = 65536;
 153                                 *size = roundup(*size, 64 * nvbo->tile_mode);
 154
 155                         } else if (device->info.chipset >= 0x30) {
 156                                 *align = 32768;
 157                                 *size = roundup(*size, 64 * nvbo->tile_mode);
 158
 159                         } else if (device->info.chipset >= 0x20) {
 160                                 *align = 16384;
 161                                 *size = roundup(*size, 64 * nvbo->tile_mode);
 162
 163                         } else if (device->info.chipset >= 0x10) {
 164                                 *align = 16384;
 165                                 *size = roundup(*size, 32 * nvbo->tile_mode);
 166                         }
 167                 }
 168         } else {
 169                 *size = roundup(*size, (1 << nvbo->page_shift));
 170                 *align = max((1 <<  nvbo->page_shift), *align);
 171         }
 172
 173         *size = roundup(*size, PAGE_SIZE);
 174 }
 175
 176 int
 177 nouveau_bo_new(struct drm_device *dev, int size, int align,
 178                uint32_t flags, uint32_t tile_mode, uint32_t tile_flags,
 179                struct sg_table *sg, struct reservation_object *robj,
 180                struct nouveau_bo **pnvbo)
 181 {
 182         struct nouveau_drm *drm = nouveau_drm(dev);
 183         struct nouveau_bo *nvbo;
 184         size_t acc_size;
 185         int ret;
 186         int type = ttm_bo_type_device;
 187         int lpg_shift = 12;
 188         int max_size;
 189
 190         if (drm->client.vm)
 191                 lpg_shift = drm->client.vm->mmu->lpg_shift;
 192         max_size = INT_MAX & ~((1 << lpg_shift) - 1);
 193
 194         if (size <= 0 || size > max_size) {
 195                 NV_WARN(drm, "skipped size %x\n", (u32)size);
 196                 return -EINVAL;
 197         }
 198
 199         if (sg)
 200                 type = ttm_bo_type_sg;
 201
 202         nvbo = kzalloc(sizeof(struct nouveau_bo), GFP_KERNEL);
 203         if (!nvbo)
 204                 return -ENOMEM;
 205         INIT_LIST_HEAD(&nvbo->head);
 206         INIT_LIST_HEAD(&nvbo->entry);
 207         INIT_LIST_HEAD(&nvbo->vma_list);
 208         nvbo->tile_mode = tile_mode;
 209         nvbo->tile_flags = tile_flags;
 210         nvbo->bo.bdev = &drm->ttm.bdev;
 211
 212         if (!nvxx_device(&drm->device)->func->cpu_coherent)
 213                 nvbo->force_coherent = flags & TTM_PL_FLAG_UNCACHED;
 214
 215         nvbo->page_shift = 12;
 216         if (drm->client.vm) {
 217                 if (!(flags & TTM_PL_FLAG_TT) && size > 256 * 1024)
 218                         nvbo->page_shift = drm->client.vm->mmu->lpg_shift;
 219         }
 220
 221         nouveau_bo_fixup_align(nvbo, flags, &align, &size);
 222         nvbo->bo.mem.num_pages = size >> PAGE_SHIFT;
 223         nouveau_bo_placement_set(nvbo, flags, 0);
 224
 225         acc_size = ttm_bo_dma_acc_size(&drm->ttm.bdev, size,
 226                                        sizeof(struct nouveau_bo));
 227
 228         ret = ttm_bo_init(&drm->ttm.bdev, &nvbo->bo, size,
 229                           type, &nvbo->placement,
 230                           align >> PAGE_SHIFT, false, NULL, acc_size, sg,
 231                           robj, nouveau_bo_del_ttm);
 232         if (ret) {
 233                 /* ttm will call nouveau_bo_del_ttm if it fails.. */
 234                 return ret;
 235         }
 236
 237         *pnvbo = nvbo;
 238         return 0;
 239 }
 240
 241 static void
 242 set_placement_list(struct ttm_place *pl, unsigned *n, uint32_t type, uint32_t flags)
 243 {
 244         *n = 0;
 245
 246         if (type & TTM_PL_FLAG_VRAM)
 247                 pl[(*n)++].flags = TTM_PL_FLAG_VRAM | flags;
 248         if (type & TTM_PL_FLAG_TT)
 249                 pl[(*n)++].flags = TTM_PL_FLAG_TT | flags;
 250         if (type & TTM_PL_FLAG_SYSTEM)
 251                 pl[(*n)++].flags = TTM_PL_FLAG_SYSTEM | flags;
 252 }
 253
 254 static void
 255 set_placement_range(struct nouveau_bo *nvbo, uint32_t type)
 256 {
 257         struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
 258         u32 vram_pages = drm->device.info.ram_size >> PAGE_SHIFT;
 259         unsigned i, fpfn, lpfn;
 260
 261         if (drm->device.info.family == NV_DEVICE_INFO_V0_CELSIUS &&
 262             nvbo->tile_mode && (type & TTM_PL_FLAG_VRAM) &&
 263             nvbo->bo.mem.num_pages < vram_pages / 4) {
 264                 /*
 265                  * Make sure that the color and depth buffers are handled
 266                  * by independent memory controller units. Up to a 9x
 267                  * speed up when alpha-blending and depth-test are enabled
 268                  * at the same time.
 269                  */
 270                 if (nvbo->tile_flags & NOUVEAU_GEM_TILE_ZETA) {
 271                         fpfn = vram_pages / 2;
 272                         lpfn = ~0;
 273                 } else {
 274                         fpfn = 0;
 275                         lpfn = vram_pages / 2;
 276                 }
 277                 for (i = 0; i < nvbo->placement.num_placement; ++i) {
 278                         nvbo->placements[i].fpfn = fpfn;
 279                         nvbo->placements[i].lpfn = lpfn;
 280                 }
 281                 for (i = 0; i < nvbo->placement.num_busy_placement; ++i) {
 282                         nvbo->busy_placements[i].fpfn = fpfn;
 283                         nvbo->busy_placements[i].lpfn = lpfn;
 284                 }
 285         }
 286 }
 287
 288 void
 289 nouveau_bo_placement_set(struct nouveau_bo *nvbo, uint32_t type, uint32_t busy)
 290 {
 291         struct ttm_placement *pl = &nvbo->placement;
 292         uint32_t flags = (nvbo->force_coherent ? TTM_PL_FLAG_UNCACHED :
 293                                                  TTM_PL_MASK_CACHING) |
 294                          (nvbo->pin_refcnt ? TTM_PL_FLAG_NO_EVICT : 0);
 295
 296         pl->placement = nvbo->placements;
 297         set_placement_list(nvbo->placements, &pl->num_placement,
 298                            type, flags);
 299
 300         pl->busy_placement = nvbo->busy_placements;
 301         set_placement_list(nvbo->busy_placements, &pl->num_busy_placement,
 302                            type | busy, flags);
 303
 304         set_placement_range(nvbo, type);
 305 }
 306
 307 int
 308 nouveau_bo_pin(struct nouveau_bo *nvbo, uint32_t memtype, bool contig)
 309 {
 310         struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
 311         struct ttm_buffer_object *bo = &nvbo->bo;
 312         bool force = false, evict = false;
 313         int ret;
 314
 315         ret = ttm_bo_reserve(bo, false, false, NULL);
 316         if (ret)
 317                 return ret;
 318
 319         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA &&
 320             memtype == TTM_PL_FLAG_VRAM && contig) {
 321                 if (nvbo->tile_flags & NOUVEAU_GEM_TILE_NONCONTIG) {
 322                         if (bo->mem.mem_type == TTM_PL_VRAM) {
 323                                 struct nvkm_mem *mem = bo->mem.mm_node;
 324                                 if (!list_is_singular(&mem->regions))
 325                                         evict = true;
 326                         }
 327                         nvbo->tile_flags &= ~NOUVEAU_GEM_TILE_NONCONTIG;
 328                         force = true;
 329                 }
 330         }
 331
 332         if (nvbo->pin_refcnt) {
 333                 if (!(memtype & (1 << bo->mem.mem_type)) || evict) {
 334                         NV_ERROR(drm, "bo %p pinned elsewhere: "
 335                                       "0x%08x vs 0x%08x\n", bo,
 336                                  1 << bo->mem.mem_type, memtype);
 337                         ret = -EBUSY;
 338                 }
 339                 nvbo->pin_refcnt++;
 340                 goto out;
 341         }
 342
 343         if (evict) {
 344                 nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_TT, 0);
 345                 ret = nouveau_bo_validate(nvbo, false, false);
 346                 if (ret)
 347                         goto out;
 348         }
 349
 350         nvbo->pin_refcnt++;
 351         nouveau_bo_placement_set(nvbo, memtype, 0);
 352
 353         /* drop pin_refcnt temporarily, so we don't trip the assertion
 354          * in nouveau_bo_move() that makes sure we're not trying to
 355          * move a pinned buffer
 356          */
 357         nvbo->pin_refcnt--;
 358         ret = nouveau_bo_validate(nvbo, false, false);
 359         if (ret)
 360                 goto out;
 361         nvbo->pin_refcnt++;
 362
 363         switch (bo->mem.mem_type) {
 364         case TTM_PL_VRAM:
 365                 drm->gem.vram_available -= bo->mem.size;
 366                 break;
 367         case TTM_PL_TT:
 368                 drm->gem.gart_available -= bo->mem.size;
 369                 break;
 370         default:
 371                 break;
 372         }
 373
 374 out:
 375         if (force && ret)
 376                 nvbo->tile_flags |= NOUVEAU_GEM_TILE_NONCONTIG;
 377         ttm_bo_unreserve(bo);
 378         return ret;
 379 }
 380
 381 int
 382 nouveau_bo_unpin(struct nouveau_bo *nvbo)
 383 {
 384         struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
 385         struct ttm_buffer_object *bo = &nvbo->bo;
 386         int ret, ref;
 387
 388         ret = ttm_bo_reserve(bo, false, false, NULL);
 389         if (ret)
 390                 return ret;
 391
 392         ref = --nvbo->pin_refcnt;
 393         WARN_ON_ONCE(ref < 0);
 394         if (ref)
 395                 goto out;
 396
 397         nouveau_bo_placement_set(nvbo, bo->mem.placement, 0);
 398
 399         ret = nouveau_bo_validate(nvbo, false, false);
 400         if (ret == 0) {
 401                 switch (bo->mem.mem_type) {
 402                 case TTM_PL_VRAM:
 403                         drm->gem.vram_available += bo->mem.size;
 404                         break;
 405                 case TTM_PL_TT:
 406                         drm->gem.gart_available += bo->mem.size;
 407                         break;
 408                 default:
 409                         break;
 410                 }
 411         }
 412
 413 out:
 414         ttm_bo_unreserve(bo);
 415         return ret;
 416 }
 417
 418 int
 419 nouveau_bo_map(struct nouveau_bo *nvbo)
 420 {
 421         int ret;
 422
 423         ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL);
 424         if (ret)
 425                 return ret;
 426
 427         ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages, &nvbo->kmap);
 428
 429         ttm_bo_unreserve(&nvbo->bo);
 430         return ret;
 431 }
 432
 433 void
 434 nouveau_bo_unmap(struct nouveau_bo *nvbo)
 435 {
 436         if (!nvbo)
 437                 return;
 438
 439         ttm_bo_kunmap(&nvbo->kmap);
 440 }
 441
 442 void
 443 nouveau_bo_sync_for_device(struct nouveau_bo *nvbo)
 444 {
 445         struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
 446         struct nvkm_device *device = nvxx_device(&drm->device);
 447         struct ttm_dma_tt *ttm_dma = (struct ttm_dma_tt *)nvbo->bo.ttm;
 448         int i;
 449
 450         if (!ttm_dma)
 451                 return;
 452
 453         /* Don't waste time looping if the object is coherent */
 454         if (nvbo->force_coherent)
 455                 return;
 456
 457         for (i = 0; i < ttm_dma->ttm.num_pages; i++)
 458                 dma_sync_single_for_device(device->dev, ttm_dma->dma_address[i],
 459                                            PAGE_SIZE, DMA_TO_DEVICE);
 460 }
 461
 462 void
 463 nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo)
 464 {
 465         struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
 466         struct nvkm_device *device = nvxx_device(&drm->device);
 467         struct ttm_dma_tt *ttm_dma = (struct ttm_dma_tt *)nvbo->bo.ttm;
 468         int i;
 469
 470         if (!ttm_dma)
 471                 return;
 472
 473         /* Don't waste time looping if the object is coherent */
 474         if (nvbo->force_coherent)
 475                 return;
 476
 477         for (i = 0; i < ttm_dma->ttm.num_pages; i++)
 478                 dma_sync_single_for_cpu(device->dev, ttm_dma->dma_address[i],
 479                                         PAGE_SIZE, DMA_FROM_DEVICE);
 480 }
 481
 482 int
 483 nouveau_bo_validate(struct nouveau_bo *nvbo, bool interruptible,
 484                     bool no_wait_gpu)
 485 {
 486         int ret;
 487
 488         ret = ttm_bo_validate(&nvbo->bo, &nvbo->placement,
 489                               interruptible, no_wait_gpu);
 490         if (ret)
 491                 return ret;
 492
 493         nouveau_bo_sync_for_device(nvbo);
 494
 495         return 0;
 496 }
 497
 498 void
 499 nouveau_bo_wr16(struct nouveau_bo *nvbo, unsigned index, u16 val)
 500 {
 501         bool is_iomem;
 502         u16 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
 503
 504         mem += index;
 505
 506         if (is_iomem)
 507                 iowrite16_native(val, (void __force __iomem *)mem);
 508         else
 509                 *mem = val;
 510 }
 511
 512 u32
 513 nouveau_bo_rd32(struct nouveau_bo *nvbo, unsigned index)
 514 {
 515         bool is_iomem;
 516         u32 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
 517
 518         mem += index;
 519
 520         if (is_iomem)
 521                 return ioread32_native((void __force __iomem *)mem);
 522         else
 523                 return *mem;
 524 }
 525
 526 void
 527 nouveau_bo_wr32(struct nouveau_bo *nvbo, unsigned index, u32 val)
 528 {
 529         bool is_iomem;
 530         u32 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
 531
 532         mem += index;
 533
 534         if (is_iomem)
 535                 iowrite32_native(val, (void __force __iomem *)mem);
 536         else
 537                 *mem = val;
 538 }
 539
 540 static struct ttm_tt *
 541 nouveau_ttm_tt_create(struct ttm_bo_device *bdev, unsigned long size,
 542                       uint32_t page_flags, struct page *dummy_read)
 543 {
 544 #if IS_ENABLED(CONFIG_AGP)
 545         struct nouveau_drm *drm = nouveau_bdev(bdev);
 546
 547         if (drm->agp.bridge) {
 548                 return ttm_agp_tt_create(bdev, drm->agp.bridge, size,
 549                                          page_flags, dummy_read);
 550         }
 551 #endif
 552
 553         return nouveau_sgdma_create_ttm(bdev, size, page_flags, dummy_read);
 554 }
 555
 556 static int
 557 nouveau_bo_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags)
 558 {
 559         /* We'll do this from user space. */
 560         return 0;
 561 }
 562
 563 static int
 564 nouveau_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
 565                          struct ttm_mem_type_manager *man)
 566 {
 567         struct nouveau_drm *drm = nouveau_bdev(bdev);
 568
 569         switch (type) {
 570         case TTM_PL_SYSTEM:
 571                 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
 572                 man->available_caching = TTM_PL_MASK_CACHING;
 573                 man->default_caching = TTM_PL_FLAG_CACHED;
 574                 break;
 575         case TTM_PL_VRAM:
 576                 man->flags = TTM_MEMTYPE_FLAG_FIXED |
 577                              TTM_MEMTYPE_FLAG_MAPPABLE;
 578                 man->available_caching = TTM_PL_FLAG_UNCACHED |
 579                                          TTM_PL_FLAG_WC;
 580                 man->default_caching = TTM_PL_FLAG_WC;
 581
 582                 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 583                         /* Some BARs do not support being ioremapped WC */
 584                         if (nvxx_bar(&drm->device)->iomap_uncached) {
 585                                 man->available_caching = TTM_PL_FLAG_UNCACHED;
 586                                 man->default_caching = TTM_PL_FLAG_UNCACHED;
 587                         }
 588
 589                         man->func = &nouveau_vram_manager;
 590                         man->io_reserve_fastpath = false;
 591                         man->use_io_reserve_lru = true;
 592                 } else {
 593                         man->func = &ttm_bo_manager_func;
 594                 }
 595                 break;
 596         case TTM_PL_TT:
 597                 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA)
 598                         man->func = &nouveau_gart_manager;
 599                 else
 600                 if (!drm->agp.bridge)
 601                         man->func = &nv04_gart_manager;
 602                 else
 603                         man->func = &ttm_bo_manager_func;
 604
 605                 if (drm->agp.bridge) {
 606                         man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
 607                         man->available_caching = TTM_PL_FLAG_UNCACHED |
 608                                 TTM_PL_FLAG_WC;
 609                         man->default_caching = TTM_PL_FLAG_WC;
 610                 } else {
 611                         man->flags = TTM_MEMTYPE_FLAG_MAPPABLE |
 612                                      TTM_MEMTYPE_FLAG_CMA;
 613                         man->available_caching = TTM_PL_MASK_CACHING;
 614                         man->default_caching = TTM_PL_FLAG_CACHED;
 615                 }
 616
 617                 break;
 618         default:
 619                 return -EINVAL;
 620         }
 621         return 0;
 622 }
 623
 624 static void
 625 nouveau_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl)
 626 {
 627         struct nouveau_bo *nvbo = nouveau_bo(bo);
 628
 629         switch (bo->mem.mem_type) {
 630         case TTM_PL_VRAM:
 631                 nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_TT,
 632                                          TTM_PL_FLAG_SYSTEM);
 633                 break;
 634         default:
 635                 nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_SYSTEM, 0);
 636                 break;
 637         }
 638
 639         *pl = nvbo->placement;
 640 }
 641
 642
 643 static int
 644 nve0_bo_move_init(struct nouveau_channel *chan, u32 handle)
 645 {
 646         int ret = RING_SPACE(chan, 2);
 647         if (ret == 0) {
 648                 BEGIN_NVC0(chan, NvSubCopy, 0x0000, 1);
 649                 OUT_RING  (chan, handle & 0x0000ffff);
 650                 FIRE_RING (chan);
 651         }
 652         return ret;
 653 }
 654
 655 static int
 656 nve0_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
 657                   struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem)
 658 {
 659         struct nvkm_mem *node = old_mem->mm_node;
 660         int ret = RING_SPACE(chan, 10);
 661         if (ret == 0) {
 662                 BEGIN_NVC0(chan, NvSubCopy, 0x0400, 8);
 663                 OUT_RING  (chan, upper_32_bits(node->vma[0].offset));
 664                 OUT_RING  (chan, lower_32_bits(node->vma[0].offset));
 665                 OUT_RING  (chan, upper_32_bits(node->vma[1].offset));
 666                 OUT_RING  (chan, lower_32_bits(node->vma[1].offset));
 667                 OUT_RING  (chan, PAGE_SIZE);
 668                 OUT_RING  (chan, PAGE_SIZE);
 669                 OUT_RING  (chan, PAGE_SIZE);
 670                 OUT_RING  (chan, new_mem->num_pages);
 671                 BEGIN_IMC0(chan, NvSubCopy, 0x0300, 0x0386);
 672         }
 673         return ret;
 674 }
 675
 676 static int
 677 nvc0_bo_move_init(struct nouveau_channel *chan, u32 handle)
 678 {
 679         int ret = RING_SPACE(chan, 2);
 680         if (ret == 0) {
 681                 BEGIN_NVC0(chan, NvSubCopy, 0x0000, 1);
 682                 OUT_RING  (chan, handle);
 683         }
 684         return ret;
 685 }
 686
 687 static int
 688 nvc0_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
 689                   struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem)
 690 {
 691         struct nvkm_mem *node = old_mem->mm_node;
 692         u64 src_offset = node->vma[0].offset;
 693         u64 dst_offset = node->vma[1].offset;
 694         u32 page_count = new_mem->num_pages;
 695         int ret;
 696
 697         page_count = new_mem->num_pages;
 698         while (page_count) {
 699                 int line_count = (page_count > 8191) ? 8191 : page_count;
 700
 701                 ret = RING_SPACE(chan, 11);
 702                 if (ret)
 703                         return ret;
 704
 705                 BEGIN_NVC0(chan, NvSubCopy, 0x030c, 8);
 706                 OUT_RING  (chan, upper_32_bits(src_offset));
 707                 OUT_RING  (chan, lower_32_bits(src_offset));
 708                 OUT_RING  (chan, upper_32_bits(dst_offset));
 709                 OUT_RING  (chan, lower_32_bits(dst_offset));
 710                 OUT_RING  (chan, PAGE_SIZE);
 711                 OUT_RING  (chan, PAGE_SIZE);
 712                 OUT_RING  (chan, PAGE_SIZE);
 713                 OUT_RING  (chan, line_count);
 714                 BEGIN_NVC0(chan, NvSubCopy, 0x0300, 1);
 715                 OUT_RING  (chan, 0x00000110);
 716
 717                 page_count -= line_count;
 718                 src_offset += (PAGE_SIZE * line_count);
 719                 dst_offset += (PAGE_SIZE * line_count);
 720         }
 721
 722         return 0;
 723 }
 724
 725 static int
 726 nvc0_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
 727                   struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem)
 728 {
 729         struct nvkm_mem *node = old_mem->mm_node;
 730         u64 src_offset = node->vma[0].offset;
 731         u64 dst_offset = node->vma[1].offset;
 732         u32 page_count = new_mem->num_pages;
 733         int ret;
 734
 735         page_count = new_mem->num_pages;
 736         while (page_count) {
 737                 int line_count = (page_count > 2047) ? 2047 : page_count;
 738
 739                 ret = RING_SPACE(chan, 12);
 740                 if (ret)
 741                         return ret;
 742
 743                 BEGIN_NVC0(chan, NvSubCopy, 0x0238, 2);
 744                 OUT_RING  (chan, upper_32_bits(dst_offset));
 745                 OUT_RING  (chan, lower_32_bits(dst_offset));
 746                 BEGIN_NVC0(chan, NvSubCopy, 0x030c, 6);
 747                 OUT_RING  (chan, upper_32_bits(src_offset));
 748                 OUT_RING  (chan, lower_32_bits(src_offset));
 749                 OUT_RING  (chan, PAGE_SIZE); /* src_pitch */
 750                 OUT_RING  (chan, PAGE_SIZE); /* dst_pitch */
 751                 OUT_RING  (chan, PAGE_SIZE); /* line_length */
 752                 OUT_RING  (chan, line_count);
 753                 BEGIN_NVC0(chan, NvSubCopy, 0x0300, 1);
 754                 OUT_RING  (chan, 0x00100110);
 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 nva3_bo_move_copy(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 > 8191) ? 8191 : page_count;
 777
 778                 ret = RING_SPACE(chan, 11);
 779                 if (ret)
 780                         return ret;
 781
 782                 BEGIN_NV04(chan, NvSubCopy, 0x030c, 8);
 783                 OUT_RING  (chan, upper_32_bits(src_offset));
 784                 OUT_RING  (chan, lower_32_bits(src_offset));
 785                 OUT_RING  (chan, upper_32_bits(dst_offset));
 786                 OUT_RING  (chan, lower_32_bits(dst_offset));
 787                 OUT_RING  (chan, PAGE_SIZE);
 788                 OUT_RING  (chan, PAGE_SIZE);
 789                 OUT_RING  (chan, PAGE_SIZE);
 790                 OUT_RING  (chan, line_count);
 791                 BEGIN_NV04(chan, NvSubCopy, 0x0300, 1);
 792                 OUT_RING  (chan, 0x00000110);
 793
 794                 page_count -= line_count;
 795                 src_offset += (PAGE_SIZE * line_count);
 796                 dst_offset += (PAGE_SIZE * line_count);
 797         }
 798
 799         return 0;
 800 }
 801
 802 static int
 803 nv98_bo_move_exec(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
 804                   struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem)
 805 {
 806         struct nvkm_mem *node = old_mem->mm_node;
 807         int ret = RING_SPACE(chan, 7);
 808         if (ret == 0) {
 809                 BEGIN_NV04(chan, NvSubCopy, 0x0320, 6);
 810                 OUT_RING  (chan, upper_32_bits(node->vma[0].offset));
 811                 OUT_RING  (chan, lower_32_bits(node->vma[0].offset));
 812                 OUT_RING  (chan, upper_32_bits(node->vma[1].offset));
 813                 OUT_RING  (chan, lower_32_bits(node->vma[1].offset));
 814                 OUT_RING  (chan, 0x00000000 /* COPY */);
 815                 OUT_RING  (chan, new_mem->num_pages << PAGE_SHIFT);
 816         }
 817         return ret;
 818 }
 819
 820 static int
 821 nv84_bo_move_exec(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
 822                   struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem)
 823 {
 824         struct nvkm_mem *node = old_mem->mm_node;
 825         int ret = RING_SPACE(chan, 7);
 826         if (ret == 0) {
 827                 BEGIN_NV04(chan, NvSubCopy, 0x0304, 6);
 828                 OUT_RING  (chan, new_mem->num_pages << PAGE_SHIFT);
 829                 OUT_RING  (chan, upper_32_bits(node->vma[0].offset));
 830                 OUT_RING  (chan, lower_32_bits(node->vma[0].offset));
 831                 OUT_RING  (chan, upper_32_bits(node->vma[1].offset));
 832                 OUT_RING  (chan, lower_32_bits(node->vma[1].offset));
 833                 OUT_RING  (chan, 0x00000000 /* MODE_COPY, QUERY_NONE */);
 834         }
 835         return ret;
 836 }
 837
 838 static int
 839 nv50_bo_move_init(struct nouveau_channel *chan, u32 handle)
 840 {
 841         int ret = RING_SPACE(chan, 6);
 842         if (ret == 0) {
 843                 BEGIN_NV04(chan, NvSubCopy, 0x0000, 1);
 844                 OUT_RING  (chan, handle);
 845                 BEGIN_NV04(chan, NvSubCopy, 0x0180, 3);
 846                 OUT_RING  (chan, chan->drm->ntfy.handle);
 847                 OUT_RING  (chan, chan->vram.handle);
 848                 OUT_RING  (chan, chan->vram.handle);
 849         }
 850
 851         return ret;
 852 }
 853
 854 static int
 855 nv50_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
 856                   struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem)
 857 {
 858         struct nvkm_mem *node = old_mem->mm_node;
 859         u64 length = (new_mem->num_pages << PAGE_SHIFT);
 860         u64 src_offset = node->vma[0].offset;
 861         u64 dst_offset = node->vma[1].offset;
 862         int src_tiled = !!node->memtype;
 863         int dst_tiled = !!((struct nvkm_mem *)new_mem->mm_node)->memtype;
 864         int ret;
 865
 866         while (length) {
 867                 u32 amount, stride, height;
 868
 869                 ret = RING_SPACE(chan, 18 + 6 * (src_tiled + dst_tiled));
 870                 if (ret)
 871                         return ret;
 872
 873                 amount  = min(length, (u64)(4 * 1024 * 1024));
 874                 stride  = 16 * 4;
 875                 height  = amount / stride;
 876
 877                 if (src_tiled) {
 878                         BEGIN_NV04(chan, NvSubCopy, 0x0200, 7);
 879                         OUT_RING  (chan, 0);
 880                         OUT_RING  (chan, 0);
 881                         OUT_RING  (chan, stride);
 882                         OUT_RING  (chan, height);
 883                         OUT_RING  (chan, 1);
 884                         OUT_RING  (chan, 0);
 885                         OUT_RING  (chan, 0);
 886                 } else {
 887                         BEGIN_NV04(chan, NvSubCopy, 0x0200, 1);
 888                         OUT_RING  (chan, 1);
 889                 }
 890                 if (dst_tiled) {
 891                         BEGIN_NV04(chan, NvSubCopy, 0x021c, 7);
 892                         OUT_RING  (chan, 0);
 893                         OUT_RING  (chan, 0);
 894                         OUT_RING  (chan, stride);
 895                         OUT_RING  (chan, height);
 896                         OUT_RING  (chan, 1);
 897                         OUT_RING  (chan, 0);
 898                         OUT_RING  (chan, 0);
 899                 } else {
 900                         BEGIN_NV04(chan, NvSubCopy, 0x021c, 1);
 901                         OUT_RING  (chan, 1);
 902                 }
 903
 904                 BEGIN_NV04(chan, NvSubCopy, 0x0238, 2);
 905                 OUT_RING  (chan, upper_32_bits(src_offset));
 906                 OUT_RING  (chan, upper_32_bits(dst_offset));
 907                 BEGIN_NV04(chan, NvSubCopy, 0x030c, 8);
 908                 OUT_RING  (chan, lower_32_bits(src_offset));
 909                 OUT_RING  (chan, lower_32_bits(dst_offset));
 910                 OUT_RING  (chan, stride);
 911                 OUT_RING  (chan, stride);
 912                 OUT_RING  (chan, stride);
 913                 OUT_RING  (chan, height);
 914                 OUT_RING  (chan, 0x00000101);
 915                 OUT_RING  (chan, 0x00000000);
 916                 BEGIN_NV04(chan, NvSubCopy, NV_MEMORY_TO_MEMORY_FORMAT_NOP, 1);
 917                 OUT_RING  (chan, 0);
 918
 919                 length -= amount;
 920                 src_offset += amount;
 921                 dst_offset += amount;
 922         }
 923
 924         return 0;
 925 }
 926
 927 static int
 928 nv04_bo_move_init(struct nouveau_channel *chan, u32 handle)
 929 {
 930         int ret = RING_SPACE(chan, 4);
 931         if (ret == 0) {
 932                 BEGIN_NV04(chan, NvSubCopy, 0x0000, 1);
 933                 OUT_RING  (chan, handle);
 934                 BEGIN_NV04(chan, NvSubCopy, 0x0180, 1);
 935                 OUT_RING  (chan, chan->drm->ntfy.handle);
 936         }
 937
 938         return ret;
 939 }
 940
 941 static inline uint32_t
 942 nouveau_bo_mem_ctxdma(struct ttm_buffer_object *bo,
 943                       struct nouveau_channel *chan, struct ttm_mem_reg *mem)
 944 {
 945         if (mem->mem_type == TTM_PL_TT)
 946                 return NvDmaTT;
 947         return chan->vram.handle;
 948 }
 949
 950 static int
 951 nv04_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
 952                   struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem)
 953 {
 954         u32 src_offset = old_mem->start << PAGE_SHIFT;
 955         u32 dst_offset = new_mem->start << PAGE_SHIFT;
 956         u32 page_count = new_mem->num_pages;
 957         int ret;
 958
 959         ret = RING_SPACE(chan, 3);
 960         if (ret)
 961                 return ret;
 962
 963         BEGIN_NV04(chan, NvSubCopy, NV_MEMORY_TO_MEMORY_FORMAT_DMA_SOURCE, 2);
 964         OUT_RING  (chan, nouveau_bo_mem_ctxdma(bo, chan, old_mem));
 965         OUT_RING  (chan, nouveau_bo_mem_ctxdma(bo, chan, new_mem));
 966
 967         page_count = new_mem->num_pages;
 968         while (page_count) {
 969                 int line_count = (page_count > 2047) ? 2047 : page_count;
 970
 971                 ret = RING_SPACE(chan, 11);
 972                 if (ret)
 973                         return ret;
 974
 975                 BEGIN_NV04(chan, NvSubCopy,
 976                                  NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8);
 977                 OUT_RING  (chan, src_offset);
 978                 OUT_RING  (chan, dst_offset);
 979                 OUT_RING  (chan, PAGE_SIZE); /* src_pitch */
 980                 OUT_RING  (chan, PAGE_SIZE); /* dst_pitch */
 981                 OUT_RING  (chan, PAGE_SIZE); /* line_length */
 982                 OUT_RING  (chan, line_count);
 983                 OUT_RING  (chan, 0x00000101);
 984                 OUT_RING  (chan, 0x00000000);
 985                 BEGIN_NV04(chan, NvSubCopy, NV_MEMORY_TO_MEMORY_FORMAT_NOP, 1);
 986                 OUT_RING  (chan, 0);
 987
 988                 page_count -= line_count;
 989                 src_offset += (PAGE_SIZE * line_count);
 990                 dst_offset += (PAGE_SIZE * line_count);
 991         }
 992
 993         return 0;
 994 }
 995
 996 static int
 997 nouveau_bo_move_prep(struct nouveau_drm *drm, struct ttm_buffer_object *bo,
 998                      struct ttm_mem_reg *mem)
 999 {
1000         struct nvkm_mem *old_node = bo->mem.mm_node;
1001         struct nvkm_mem *new_node = mem->mm_node;
1002         u64 size = (u64)mem->num_pages << PAGE_SHIFT;
1003         int ret;
1004
1005         ret = nvkm_vm_get(drm->client.vm, size, old_node->page_shift,
1006                           NV_MEM_ACCESS_RW, &old_node->vma[0]);
1007         if (ret)
1008                 return ret;
1009
1010         ret = nvkm_vm_get(drm->client.vm, size, new_node->page_shift,
1011                           NV_MEM_ACCESS_RW, &old_node->vma[1]);
1012         if (ret) {
1013                 nvkm_vm_put(&old_node->vma[0]);
1014                 return ret;
1015         }
1016
1017         nvkm_vm_map(&old_node->vma[0], old_node);
1018         nvkm_vm_map(&old_node->vma[1], new_node);
1019         return 0;
1020 }
1021
1022 static int
1023 nouveau_bo_move_m2mf(struct ttm_buffer_object *bo, int evict, bool intr,
1024                      bool no_wait_gpu, struct ttm_mem_reg *new_mem)
1025 {
1026         struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
1027         struct nouveau_channel *chan = drm->ttm.chan;
1028         struct nouveau_cli *cli = (void *)chan->user.client;
1029         struct nouveau_fence *fence;
1030         int ret;
1031
1032         /* create temporary vmas for the transfer and attach them to the
1033          * old nvkm_mem node, these will get cleaned up after ttm has
1034          * destroyed the ttm_mem_reg
1035          */
1036         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
1037                 ret = nouveau_bo_move_prep(drm, bo, new_mem);
1038                 if (ret)
1039                         return ret;
1040         }
1041
1042         mutex_lock_nested(&cli->mutex, SINGLE_DEPTH_NESTING);
1043         ret = nouveau_fence_sync(nouveau_bo(bo), chan, true, intr);
1044         if (ret == 0) {
1045                 ret = drm->ttm.move(chan, bo, &bo->mem, new_mem);
1046                 if (ret == 0) {
1047                         ret = nouveau_fence_new(chan, false, &fence);
1048                         if (ret == 0) {
1049                                 ret = ttm_bo_move_accel_cleanup(bo,
1050                                                                 &fence->base,
1051                                                                 evict,
1052                                                                 new_mem);
1053                                 nouveau_fence_unref(&fence);
1054                         }
1055                 }
1056         }
1057         mutex_unlock(&cli->mutex);
1058         return ret;
1059 }
1060
1061 void
1062 nouveau_bo_move_init(struct nouveau_drm *drm)
1063 {
1064         static const struct {
1065                 const char *name;
1066                 int engine;
1067                 s32 oclass;
1068                 int (*exec)(struct nouveau_channel *,
1069                             struct ttm_buffer_object *,
1070                             struct ttm_mem_reg *, struct ttm_mem_reg *);
1071                 int (*init)(struct nouveau_channel *, u32 handle);
1072         } _methods[] = {
1073                 {  "COPY", 4, 0xc1b5, nve0_bo_move_copy, nve0_bo_move_init },
1074                 {  "GRCE", 0, 0xc1b5, nve0_bo_move_copy, nvc0_bo_move_init },
1075                 {  "COPY", 4, 0xc0b5, nve0_bo_move_copy, nve0_bo_move_init },
1076                 {  "GRCE", 0, 0xc0b5, nve0_bo_move_copy, nvc0_bo_move_init },
1077                 {  "COPY", 4, 0xb0b5, nve0_bo_move_copy, nve0_bo_move_init },
1078                 {  "GRCE", 0, 0xb0b5, nve0_bo_move_copy, nvc0_bo_move_init },
1079                 {  "COPY", 4, 0xa0b5, nve0_bo_move_copy, nve0_bo_move_init },
1080                 {  "GRCE", 0, 0xa0b5, nve0_bo_move_copy, nvc0_bo_move_init },
1081                 { "COPY1", 5, 0x90b8, nvc0_bo_move_copy, nvc0_bo_move_init },
1082                 { "COPY0", 4, 0x90b5, nvc0_bo_move_copy, nvc0_bo_move_init },
1083                 {  "COPY", 0, 0x85b5, nva3_bo_move_copy, nv50_bo_move_init },
1084                 { "CRYPT", 0, 0x74c1, nv84_bo_move_exec, nv50_bo_move_init },
1085                 {  "M2MF", 0, 0x9039, nvc0_bo_move_m2mf, nvc0_bo_move_init },
1086                 {  "M2MF", 0, 0x5039, nv50_bo_move_m2mf, nv50_bo_move_init },
1087                 {  "M2MF", 0, 0x0039, nv04_bo_move_m2mf, nv04_bo_move_init },
1088                 {},
1089                 { "CRYPT", 0, 0x88b4, nv98_bo_move_exec, nv50_bo_move_init },
1090         }, *mthd = _methods;
1091         const char *name = "CPU";
1092         int ret;
1093
1094         do {
1095                 struct nouveau_channel *chan;
1096
1097                 if (mthd->engine)
1098                         chan = drm->cechan;
1099                 else
1100                         chan = drm->channel;
1101                 if (chan == NULL)
1102                         continue;
1103
1104                 ret = nvif_object_init(&chan->user,
1105                                        mthd->oclass | (mthd->engine << 16),
1106                                        mthd->oclass, NULL, 0,
1107                                        &drm->ttm.copy);
1108                 if (ret == 0) {
1109                         ret = mthd->init(chan, drm->ttm.copy.handle);
1110                         if (ret) {
1111                                 nvif_object_fini(&drm->ttm.copy);
1112                                 continue;
1113                         }
1114
1115                         drm->ttm.move = mthd->exec;
1116                         drm->ttm.chan = chan;
1117                         name = mthd->name;
1118                         break;
1119                 }
1120         } while ((++mthd)->exec);
1121
1122         NV_INFO(drm, "MM: using %s for buffer copies\n", name);
1123 }
1124
1125 static int
1126 nouveau_bo_move_flipd(struct ttm_buffer_object *bo, bool evict, bool intr,
1127                       bool no_wait_gpu, struct ttm_mem_reg *new_mem)
1128 {
1129         struct ttm_place placement_memtype = {
1130                 .fpfn = 0,
1131                 .lpfn = 0,
1132                 .flags = TTM_PL_FLAG_TT | TTM_PL_MASK_CACHING
1133         };
1134         struct ttm_placement placement;
1135         struct ttm_mem_reg tmp_mem;
1136         int ret;
1137
1138         placement.num_placement = placement.num_busy_placement = 1;
1139         placement.placement = placement.busy_placement = &placement_memtype;
1140
1141         tmp_mem = *new_mem;
1142         tmp_mem.mm_node = NULL;
1143         ret = ttm_bo_mem_space(bo, &placement, &tmp_mem, intr, no_wait_gpu);
1144         if (ret)
1145                 return ret;
1146
1147         ret = ttm_tt_bind(bo->ttm, &tmp_mem);
1148         if (ret)
1149                 goto out;
1150
1151         ret = nouveau_bo_move_m2mf(bo, true, intr, no_wait_gpu, &tmp_mem);
1152         if (ret)
1153                 goto out;
1154
1155         ret = ttm_bo_move_ttm(bo, true, intr, no_wait_gpu, new_mem);
1156 out:
1157         ttm_bo_mem_put(bo, &tmp_mem);
1158         return ret;
1159 }
1160
1161 static int
1162 nouveau_bo_move_flips(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_bo_move_ttm(bo, true, intr, no_wait_gpu, &tmp_mem);
1184         if (ret)
1185                 goto out;
1186
1187         ret = nouveau_bo_move_m2mf(bo, true, intr, no_wait_gpu, new_mem);
1188         if (ret)
1189                 goto out;
1190
1191 out:
1192         ttm_bo_mem_put(bo, &tmp_mem);
1193         return ret;
1194 }
1195
1196 static void
1197 nouveau_bo_move_ntfy(struct ttm_buffer_object *bo, struct ttm_mem_reg *new_mem)
1198 {
1199         struct nouveau_bo *nvbo = nouveau_bo(bo);
1200         struct nvkm_vma *vma;
1201
1202         /* ttm can now (stupidly) pass the driver bos it didn't create... */
1203         if (bo->destroy != nouveau_bo_del_ttm)
1204                 return;
1205
1206         list_for_each_entry(vma, &nvbo->vma_list, head) {
1207                 if (new_mem && new_mem->mem_type != TTM_PL_SYSTEM &&
1208                               (new_mem->mem_type == TTM_PL_VRAM ||
1209                                nvbo->page_shift != vma->vm->mmu->lpg_shift)) {
1210                         nvkm_vm_map(vma, new_mem->mm_node);
1211                 } else {
1212                         nvkm_vm_unmap(vma);
1213                 }
1214         }
1215 }
1216
1217 static int
1218 nouveau_bo_vm_bind(struct ttm_buffer_object *bo, struct ttm_mem_reg *new_mem,
1219                    struct nouveau_drm_tile **new_tile)
1220 {
1221         struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
1222         struct drm_device *dev = drm->dev;
1223         struct nouveau_bo *nvbo = nouveau_bo(bo);
1224         u64 offset = new_mem->start << PAGE_SHIFT;
1225
1226         *new_tile = NULL;
1227         if (new_mem->mem_type != TTM_PL_VRAM)
1228                 return 0;
1229
1230         if (drm->device.info.family >= NV_DEVICE_INFO_V0_CELSIUS) {
1231                 *new_tile = nv10_bo_set_tiling(dev, offset, new_mem->size,
1232                                                 nvbo->tile_mode,
1233                                                 nvbo->tile_flags);
1234         }
1235
1236         return 0;
1237 }
1238
1239 static void
1240 nouveau_bo_vm_cleanup(struct ttm_buffer_object *bo,
1241                       struct nouveau_drm_tile *new_tile,
1242                       struct nouveau_drm_tile **old_tile)
1243 {
1244         struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
1245         struct drm_device *dev = drm->dev;
1246         struct fence *fence = reservation_object_get_excl(bo->resv);
1247
1248         nv10_bo_put_tile_region(dev, *old_tile, fence);
1249         *old_tile = new_tile;
1250 }
1251
1252 static int
1253 nouveau_bo_move(struct ttm_buffer_object *bo, bool evict, bool intr,
1254                 bool no_wait_gpu, struct ttm_mem_reg *new_mem)
1255 {
1256         struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
1257         struct nouveau_bo *nvbo = nouveau_bo(bo);
1258         struct ttm_mem_reg *old_mem = &bo->mem;
1259         struct nouveau_drm_tile *new_tile = NULL;
1260         int ret = 0;
1261
1262         ret = ttm_bo_wait(bo, intr, no_wait_gpu);
1263         if (ret)
1264                 return ret;
1265
1266         if (nvbo->pin_refcnt)
1267                 NV_WARN(drm, "Moving pinned object %p!\n", nvbo);
1268
1269         if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
1270                 ret = nouveau_bo_vm_bind(bo, new_mem, &new_tile);
1271                 if (ret)
1272                         return ret;
1273         }
1274
1275         /* Fake bo copy. */
1276         if (old_mem->mem_type == TTM_PL_SYSTEM && !bo->ttm) {
1277                 BUG_ON(bo->mem.mm_node != NULL);
1278                 bo->mem = *new_mem;
1279                 new_mem->mm_node = NULL;
1280                 goto out;
1281         }
1282
1283         /* Hardware assisted copy. */
1284         if (drm->ttm.move) {
1285                 if (new_mem->mem_type == TTM_PL_SYSTEM)
1286                         ret = nouveau_bo_move_flipd(bo, evict, intr,
1287                                                     no_wait_gpu, new_mem);
1288                 else if (old_mem->mem_type == TTM_PL_SYSTEM)
1289                         ret = nouveau_bo_move_flips(bo, evict, intr,
1290                                                     no_wait_gpu, new_mem);
1291                 else
1292                         ret = nouveau_bo_move_m2mf(bo, evict, intr,
1293                                                    no_wait_gpu, new_mem);
1294                 if (!ret)
1295                         goto out;
1296         }
1297
1298         /* Fallback to software copy. */
1299         ret = ttm_bo_wait(bo, intr, no_wait_gpu);
1300         if (ret == 0)
1301                 ret = ttm_bo_move_memcpy(bo, evict, intr, no_wait_gpu, new_mem);
1302
1303 out:
1304         if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
1305                 if (ret)
1306                         nouveau_bo_vm_cleanup(bo, NULL, &new_tile);
1307                 else
1308                         nouveau_bo_vm_cleanup(bo, new_tile, &nvbo->tile);
1309         }
1310
1311         return ret;
1312 }
1313
1314 static int
1315 nouveau_bo_verify_access(struct ttm_buffer_object *bo, struct file *filp)
1316 {
1317         struct nouveau_bo *nvbo = nouveau_bo(bo);
1318
1319         return drm_vma_node_verify_access(&nvbo->gem.vma_node, filp);
1320 }
1321
1322 static int
1323 nouveau_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
1324 {
1325         struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
1326         struct nouveau_drm *drm = nouveau_bdev(bdev);
1327         struct nvkm_device *device = nvxx_device(&drm->device);
1328         struct nvkm_mem *node = mem->mm_node;
1329         int ret;
1330
1331         mem->bus.addr = NULL;
1332         mem->bus.offset = 0;
1333         mem->bus.size = mem->num_pages << PAGE_SHIFT;
1334         mem->bus.base = 0;
1335         mem->bus.is_iomem = false;
1336         if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
1337                 return -EINVAL;
1338         switch (mem->mem_type) {
1339         case TTM_PL_SYSTEM:
1340                 /* System memory */
1341                 return 0;
1342         case TTM_PL_TT:
1343 #if IS_ENABLED(CONFIG_AGP)
1344                 if (drm->agp.bridge) {
1345                         mem->bus.offset = mem->start << PAGE_SHIFT;
1346                         mem->bus.base = drm->agp.base;
1347                         mem->bus.is_iomem = !drm->agp.cma;
1348                 }
1349 #endif
1350                 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA || !node->memtype)
1351                         /* untiled */
1352                         break;
1353                 /* fallthrough, tiled memory */
1354         case TTM_PL_VRAM:
1355                 mem->bus.offset = mem->start << PAGE_SHIFT;
1356                 mem->bus.base = device->func->resource_addr(device, 1);
1357                 mem->bus.is_iomem = true;
1358                 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
1359                         struct nvkm_bar *bar = nvxx_bar(&drm->device);
1360                         int page_shift = 12;
1361                         if (drm->device.info.family >= NV_DEVICE_INFO_V0_FERMI)
1362                                 page_shift = node->page_shift;
1363
1364                         ret = nvkm_bar_umap(bar, node->size << 12, page_shift,
1365                                             &node->bar_vma);
1366                         if (ret)
1367                                 return ret;
1368
1369                         nvkm_vm_map(&node->bar_vma, node);
1370                         mem->bus.offset = node->bar_vma.offset;
1371                 }
1372                 break;
1373         default:
1374                 return -EINVAL;
1375         }
1376         return 0;
1377 }
1378
1379 static void
1380 nouveau_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
1381 {
1382         struct nvkm_mem *node = mem->mm_node;
1383
1384         if (!node->bar_vma.node)
1385                 return;
1386
1387         nvkm_vm_unmap(&node->bar_vma);
1388         nvkm_vm_put(&node->bar_vma);
1389 }
1390
1391 static int
1392 nouveau_ttm_fault_reserve_notify(struct ttm_buffer_object *bo)
1393 {
1394         struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
1395         struct nouveau_bo *nvbo = nouveau_bo(bo);
1396         struct nvkm_device *device = nvxx_device(&drm->device);
1397         u32 mappable = device->func->resource_size(device, 1) >> PAGE_SHIFT;
1398         int i, ret;
1399
1400         /* as long as the bo isn't in vram, and isn't tiled, we've got
1401          * nothing to do here.
1402          */
1403         if (bo->mem.mem_type != TTM_PL_VRAM) {
1404                 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA ||
1405                     !nouveau_bo_tile_layout(nvbo))
1406                         return 0;
1407
1408                 if (bo->mem.mem_type == TTM_PL_SYSTEM) {
1409                         nouveau_bo_placement_set(nvbo, TTM_PL_TT, 0);
1410
1411                         ret = nouveau_bo_validate(nvbo, false, false);
1412                         if (ret)
1413                                 return ret;
1414                 }
1415                 return 0;
1416         }
1417
1418         /* make sure bo is in mappable vram */
1419         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA ||
1420             bo->mem.start + bo->mem.num_pages < mappable)
1421                 return 0;
1422
1423         for (i = 0; i < nvbo->placement.num_placement; ++i) {
1424                 nvbo->placements[i].fpfn = 0;
1425                 nvbo->placements[i].lpfn = mappable;
1426         }
1427
1428         for (i = 0; i < nvbo->placement.num_busy_placement; ++i) {
1429                 nvbo->busy_placements[i].fpfn = 0;
1430                 nvbo->busy_placements[i].lpfn = mappable;
1431         }
1432
1433         nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_VRAM, 0);
1434         return nouveau_bo_validate(nvbo, false, false);
1435 }
1436
1437 static int
1438 nouveau_ttm_tt_populate(struct ttm_tt *ttm)
1439 {
1440         struct ttm_dma_tt *ttm_dma = (void *)ttm;
1441         struct nouveau_drm *drm;
1442         struct nvkm_device *device;
1443         struct drm_device *dev;
1444         struct device *pdev;
1445         unsigned i;
1446         int r;
1447         bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG);
1448
1449         if (ttm->state != tt_unpopulated)
1450                 return 0;
1451
1452         if (slave && ttm->sg) {
1453                 /* make userspace faulting work */
1454                 drm_prime_sg_to_page_addr_arrays(ttm->sg, ttm->pages,
1455                                                  ttm_dma->dma_address, ttm->num_pages);
1456                 ttm->state = tt_unbound;
1457                 return 0;
1458         }
1459
1460         drm = nouveau_bdev(ttm->bdev);
1461         device = nvxx_device(&drm->device);
1462         dev = drm->dev;
1463         pdev = device->dev;
1464
1465 #if IS_ENABLED(CONFIG_AGP)
1466         if (drm->agp.bridge) {
1467                 return ttm_agp_tt_populate(ttm);
1468         }
1469 #endif
1470
1471 #if IS_ENABLED(CONFIG_SWIOTLB) && IS_ENABLED(CONFIG_X86)
1472         if (swiotlb_nr_tbl()) {
1473                 return ttm_dma_populate((void *)ttm, dev->dev);
1474         }
1475 #endif
1476
1477         r = ttm_pool_populate(ttm);
1478         if (r) {
1479                 return r;
1480         }
1481
1482         for (i = 0; i < ttm->num_pages; i++) {
1483                 dma_addr_t addr;
1484
1485                 addr = dma_map_page(pdev, ttm->pages[i], 0, PAGE_SIZE,
1486                                     DMA_BIDIRECTIONAL);
1487
1488                 if (dma_mapping_error(pdev, addr)) {
1489                         while (i--) {
1490                                 dma_unmap_page(pdev, ttm_dma->dma_address[i],
1491                                                PAGE_SIZE, DMA_BIDIRECTIONAL);
1492                                 ttm_dma->dma_address[i] = 0;
1493                         }
1494                         ttm_pool_unpopulate(ttm);
1495                         return -EFAULT;
1496                 }
1497
1498                 ttm_dma->dma_address[i] = addr;
1499         }
1500         return 0;
1501 }
1502
1503 static void
1504 nouveau_ttm_tt_unpopulate(struct ttm_tt *ttm)
1505 {
1506         struct ttm_dma_tt *ttm_dma = (void *)ttm;
1507         struct nouveau_drm *drm;
1508         struct nvkm_device *device;
1509         struct drm_device *dev;
1510         struct device *pdev;
1511         unsigned i;
1512         bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG);
1513
1514         if (slave)
1515                 return;
1516
1517         drm = nouveau_bdev(ttm->bdev);
1518         device = nvxx_device(&drm->device);
1519         dev = drm->dev;
1520         pdev = device->dev;
1521
1522 #if IS_ENABLED(CONFIG_AGP)
1523         if (drm->agp.bridge) {
1524                 ttm_agp_tt_unpopulate(ttm);
1525                 return;
1526         }
1527 #endif
1528
1529 #if IS_ENABLED(CONFIG_SWIOTLB) && IS_ENABLED(CONFIG_X86)
1530         if (swiotlb_nr_tbl()) {
1531                 ttm_dma_unpopulate((void *)ttm, dev->dev);
1532                 return;
1533         }
1534 #endif
1535
1536         for (i = 0; i < ttm->num_pages; i++) {
1537                 if (ttm_dma->dma_address[i]) {
1538                         dma_unmap_page(pdev, ttm_dma->dma_address[i], PAGE_SIZE,
1539                                        DMA_BIDIRECTIONAL);
1540                 }
1541         }
1542
1543         ttm_pool_unpopulate(ttm);
1544 }
1545
1546 void
1547 nouveau_bo_fence(struct nouveau_bo *nvbo, struct nouveau_fence *fence, bool exclusive)
1548 {
1549         struct reservation_object *resv = nvbo->bo.resv;
1550
1551         if (exclusive)
1552                 reservation_object_add_excl_fence(resv, &fence->base);
1553         else if (fence)
1554                 reservation_object_add_shared_fence(resv, &fence->base);
1555 }
1556
1557 struct ttm_bo_driver nouveau_bo_driver = {
1558         .ttm_tt_create = &nouveau_ttm_tt_create,
1559         .ttm_tt_populate = &nouveau_ttm_tt_populate,
1560         .ttm_tt_unpopulate = &nouveau_ttm_tt_unpopulate,
1561         .invalidate_caches = nouveau_bo_invalidate_caches,
1562         .init_mem_type = nouveau_bo_init_mem_type,
1563         .evict_flags = nouveau_bo_evict_flags,
1564         .move_notify = nouveau_bo_move_ntfy,
1565         .move = nouveau_bo_move,
1566         .verify_access = nouveau_bo_verify_access,
1567         .fault_reserve_notify = &nouveau_ttm_fault_reserve_notify,
1568         .io_mem_reserve = &nouveau_ttm_io_mem_reserve,
1569         .io_mem_free = &nouveau_ttm_io_mem_free,
1570         .lru_tail = &ttm_bo_default_lru_tail,
1571         .swap_lru_tail = &ttm_bo_default_swap_lru_tail,
1572 };
1573
1574 struct nvkm_vma *
1575 nouveau_bo_vma_find(struct nouveau_bo *nvbo, struct nvkm_vm *vm)
1576 {
1577         struct nvkm_vma *vma;
1578         list_for_each_entry(vma, &nvbo->vma_list, head) {
1579                 if (vma->vm == vm)
1580                         return vma;
1581         }
1582
1583         return NULL;
1584 }
1585
1586 int
1587 nouveau_bo_vma_add(struct nouveau_bo *nvbo, struct nvkm_vm *vm,
1588                    struct nvkm_vma *vma)
1589 {
1590         const u32 size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
1591         int ret;
1592
1593         ret = nvkm_vm_get(vm, size, nvbo->page_shift,
1594                              NV_MEM_ACCESS_RW, vma);
1595         if (ret)
1596                 return ret;
1597
1598         if ( nvbo->bo.mem.mem_type != TTM_PL_SYSTEM &&
1599             (nvbo->bo.mem.mem_type == TTM_PL_VRAM ||
1600              nvbo->page_shift != vma->vm->mmu->lpg_shift))
1601                 nvkm_vm_map(vma, nvbo->bo.mem.mm_node);
1602
1603         list_add_tail(&vma->head, &nvbo->vma_list);
1604         vma->refcount = 1;
1605         return 0;
1606 }
1607
1608 void
1609 nouveau_bo_vma_del(struct nouveau_bo *nvbo, struct nvkm_vma *vma)
1610 {
1611         if (vma->node) {
1612                 if (nvbo->bo.mem.mem_type != TTM_PL_SYSTEM)
1613                         nvkm_vm_unmap(vma);
1614                 nvkm_vm_put(vma);
1615                 list_del(&vma->head);
1616         }
1617 }