kernel/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_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(&reg->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 }