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 #include "nouveau_mem.h"
  41 #include "nouveau_vmm.h"
  42
  43 #include <nvif/class.h>
  44 #include <nvif/if500b.h>
  45 #include <nvif/if900b.h>
  46
  47 /*
  48  * NV10-NV40 tiling helpers
  49  */
  50
  51 static void
  52 nv10_bo_update_tile_region(struct drm_device *dev, struct nouveau_drm_tile *reg,
  53                            u32 addr, u32 size, u32 pitch, u32 flags)
  54 {
  55         struct nouveau_drm *drm = nouveau_drm(dev);
  56         int i = reg - drm->tile.reg;
  57         struct nvkm_fb *fb = nvxx_fb(&drm->client.device);
  58         struct nvkm_fb_tile *tile = &fb->tile.region[i];
  59
  60         nouveau_fence_unref(&reg->fence);
  61
  62         if (tile->pitch)
  63                 nvkm_fb_tile_fini(fb, i, tile);
  64
  65         if (pitch)
  66                 nvkm_fb_tile_init(fb, i, addr, size, pitch, flags, tile);
  67
  68         nvkm_fb_tile_prog(fb, i, tile);
  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 dma_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 *)dma_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 zeta)
 106 {
 107         struct nouveau_drm *drm = nouveau_drm(dev);
 108         struct nvkm_fb *fb = nvxx_fb(&drm->client.device);
 109         struct nouveau_drm_tile *tile, *found = NULL;
 110         int i;
 111
 112         for (i = 0; i < fb->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 && fb->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, pitch, zeta);
 129         return found;
 130 }
 131
 132 static void
 133 nouveau_bo_del_ttm(struct ttm_buffer_object *bo)
 134 {
 135         struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
 136         struct drm_device *dev = drm->dev;
 137         struct nouveau_bo *nvbo = nouveau_bo(bo);
 138
 139         WARN_ON(nvbo->pin_refcnt > 0);
 140         nv10_bo_put_tile_region(dev, nvbo->tile, NULL);
 141
 142         /*
 143          * If nouveau_bo_new() allocated this buffer, the GEM object was never
 144          * initialized, so don't attempt to release it.
 145          */
 146         if (bo->base.dev)
 147                 drm_gem_object_release(&bo->base);
 148
 149         kfree(nvbo);
 150 }
 151
 152 static inline u64
 153 roundup_64(u64 x, u32 y)
 154 {
 155         x += y - 1;
 156         do_div(x, y);
 157         return x * y;
 158 }
 159
 160 static void
 161 nouveau_bo_fixup_align(struct nouveau_bo *nvbo, u32 flags,
 162                        int *align, u64 *size)
 163 {
 164         struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
 165         struct nvif_device *device = &drm->client.device;
 166
 167         if (device->info.family < NV_DEVICE_INFO_V0_TESLA) {
 168                 if (nvbo->mode) {
 169                         if (device->info.chipset >= 0x40) {
 170                                 *align = 65536;
 171                                 *size = roundup_64(*size, 64 * nvbo->mode);
 172
 173                         } else if (device->info.chipset >= 0x30) {
 174                                 *align = 32768;
 175                                 *size = roundup_64(*size, 64 * nvbo->mode);
 176
 177                         } else if (device->info.chipset >= 0x20) {
 178                                 *align = 16384;
 179                                 *size = roundup_64(*size, 64 * nvbo->mode);
 180
 181                         } else if (device->info.chipset >= 0x10) {
 182                                 *align = 16384;
 183                                 *size = roundup_64(*size, 32 * nvbo->mode);
 184                         }
 185                 }
 186         } else {
 187                 *size = roundup_64(*size, (1 << nvbo->page));
 188                 *align = max((1 <<  nvbo->page), *align);
 189         }
 190
 191         *size = roundup_64(*size, PAGE_SIZE);
 192 }
 193
 194 struct nouveau_bo *
 195 nouveau_bo_alloc(struct nouveau_cli *cli, u64 *size, int *align, u32 flags,
 196                  u32 tile_mode, u32 tile_flags)
 197 {
 198         struct nouveau_drm *drm = cli->drm;
 199         struct nouveau_bo *nvbo;
 200         struct nvif_mmu *mmu = &cli->mmu;
 201         struct nvif_vmm *vmm = cli->svm.cli ? &cli->svm.vmm : &cli->vmm.vmm;
 202         int i, pi = -1;
 203
 204         if (!*size) {
 205                 NV_WARN(drm, "skipped size %016llx\n", *size);
 206                 return ERR_PTR(-EINVAL);
 207         }
 208
 209         nvbo = kzalloc(sizeof(struct nouveau_bo), GFP_KERNEL);
 210         if (!nvbo)
 211                 return ERR_PTR(-ENOMEM);
 212         INIT_LIST_HEAD(&nvbo->head);
 213         INIT_LIST_HEAD(&nvbo->entry);
 214         INIT_LIST_HEAD(&nvbo->vma_list);
 215         nvbo->bo.bdev = &drm->ttm.bdev;
 216
 217         /* This is confusing, and doesn't actually mean we want an uncached
 218          * mapping, but is what NOUVEAU_GEM_DOMAIN_COHERENT gets translated
 219          * into in nouveau_gem_new().
 220          */
 221         if (flags & TTM_PL_FLAG_UNCACHED) {
 222                 /* Determine if we can get a cache-coherent map, forcing
 223                  * uncached mapping if we can't.
 224                  */
 225                 if (!nouveau_drm_use_coherent_gpu_mapping(drm))
 226                         nvbo->force_coherent = true;
 227         }
 228
 229         if (cli->device.info.family >= NV_DEVICE_INFO_V0_FERMI) {
 230                 nvbo->kind = (tile_flags & 0x0000ff00) >> 8;
 231                 if (!nvif_mmu_kind_valid(mmu, nvbo->kind)) {
 232                         kfree(nvbo);
 233                         return ERR_PTR(-EINVAL);
 234                 }
 235
 236                 nvbo->comp = mmu->kind[nvbo->kind] != nvbo->kind;
 237         } else
 238         if (cli->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 239                 nvbo->kind = (tile_flags & 0x00007f00) >> 8;
 240                 nvbo->comp = (tile_flags & 0x00030000) >> 16;
 241                 if (!nvif_mmu_kind_valid(mmu, nvbo->kind)) {
 242                         kfree(nvbo);
 243                         return ERR_PTR(-EINVAL);
 244                 }
 245         } else {
 246                 nvbo->zeta = (tile_flags & 0x00000007);
 247         }
 248         nvbo->mode = tile_mode;
 249         nvbo->contig = !(tile_flags & NOUVEAU_GEM_TILE_NONCONTIG);
 250
 251         /* Determine the desirable target GPU page size for the buffer. */
 252         for (i = 0; i < vmm->page_nr; i++) {
 253                 /* Because we cannot currently allow VMM maps to fail
 254                  * during buffer migration, we need to determine page
 255                  * size for the buffer up-front, and pre-allocate its
 256                  * page tables.
 257                  *
 258                  * Skip page sizes that can't support needed domains.
 259                  */
 260                 if (cli->device.info.family > NV_DEVICE_INFO_V0_CURIE &&
 261                     (flags & TTM_PL_FLAG_VRAM) && !vmm->page[i].vram)
 262                         continue;
 263                 if ((flags & TTM_PL_FLAG_TT) &&
 264                     (!vmm->page[i].host || vmm->page[i].shift > PAGE_SHIFT))
 265                         continue;
 266
 267                 /* Select this page size if it's the first that supports
 268                  * the potential memory domains, or when it's compatible
 269                  * with the requested compression settings.
 270                  */
 271                 if (pi < 0 || !nvbo->comp || vmm->page[i].comp)
 272                         pi = i;
 273
 274                 /* Stop once the buffer is larger than the current page size. */
 275                 if (*size >= 1ULL << vmm->page[i].shift)
 276                         break;
 277         }
 278
 279         if (WARN_ON(pi < 0))
 280                 return ERR_PTR(-EINVAL);
 281
 282         /* Disable compression if suitable settings couldn't be found. */
 283         if (nvbo->comp && !vmm->page[pi].comp) {
 284                 if (mmu->object.oclass >= NVIF_CLASS_MMU_GF100)
 285                         nvbo->kind = mmu->kind[nvbo->kind];
 286                 nvbo->comp = 0;
 287         }
 288         nvbo->page = vmm->page[pi].shift;
 289
 290         nouveau_bo_fixup_align(nvbo, flags, align, size);
 291
 292         return nvbo;
 293 }
 294
 295 int
 296 nouveau_bo_init(struct nouveau_bo *nvbo, u64 size, int align, u32 flags,
 297                 struct sg_table *sg, struct dma_resv *robj)
 298 {
 299         int type = sg ? ttm_bo_type_sg : ttm_bo_type_device;
 300         size_t acc_size;
 301         int ret;
 302
 303         acc_size = ttm_bo_dma_acc_size(nvbo->bo.bdev, size, sizeof(*nvbo));
 304
 305         nvbo->bo.mem.num_pages = size >> PAGE_SHIFT;
 306         nouveau_bo_placement_set(nvbo, flags, 0);
 307
 308         ret = ttm_bo_init(nvbo->bo.bdev, &nvbo->bo, size, type,
 309                           &nvbo->placement, align >> PAGE_SHIFT, false,
 310                           acc_size, sg, robj, nouveau_bo_del_ttm);
 311         if (ret) {
 312                 /* ttm will call nouveau_bo_del_ttm if it fails.. */
 313                 return ret;
 314         }
 315
 316         return 0;
 317 }
 318
 319 int
 320 nouveau_bo_new(struct nouveau_cli *cli, u64 size, int align,
 321                uint32_t flags, uint32_t tile_mode, uint32_t tile_flags,
 322                struct sg_table *sg, struct dma_resv *robj,
 323                struct nouveau_bo **pnvbo)
 324 {
 325         struct nouveau_bo *nvbo;
 326         int ret;
 327
 328         nvbo = nouveau_bo_alloc(cli, &size, &align, flags, tile_mode,
 329                                 tile_flags);
 330         if (IS_ERR(nvbo))
 331                 return PTR_ERR(nvbo);
 332
 333         ret = nouveau_bo_init(nvbo, size, align, flags, sg, robj);
 334         if (ret)
 335                 return ret;
 336
 337         *pnvbo = nvbo;
 338         return 0;
 339 }
 340
 341 static void
 342 set_placement_list(struct ttm_place *pl, unsigned *n, uint32_t type, uint32_t flags)
 343 {
 344         *n = 0;
 345
 346         if (type & TTM_PL_FLAG_VRAM)
 347                 pl[(*n)++].flags = TTM_PL_FLAG_VRAM | flags;
 348         if (type & TTM_PL_FLAG_TT)
 349                 pl[(*n)++].flags = TTM_PL_FLAG_TT | flags;
 350         if (type & TTM_PL_FLAG_SYSTEM)
 351                 pl[(*n)++].flags = TTM_PL_FLAG_SYSTEM | flags;
 352 }
 353
 354 static void
 355 set_placement_range(struct nouveau_bo *nvbo, uint32_t type)
 356 {
 357         struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
 358         u32 vram_pages = drm->client.device.info.ram_size >> PAGE_SHIFT;
 359         unsigned i, fpfn, lpfn;
 360
 361         if (drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS &&
 362             nvbo->mode && (type & TTM_PL_FLAG_VRAM) &&
 363             nvbo->bo.mem.num_pages < vram_pages / 4) {
 364                 /*
 365                  * Make sure that the color and depth buffers are handled
 366                  * by independent memory controller units. Up to a 9x
 367                  * speed up when alpha-blending and depth-test are enabled
 368                  * at the same time.
 369                  */
 370                 if (nvbo->zeta) {
 371                         fpfn = vram_pages / 2;
 372                         lpfn = ~0;
 373                 } else {
 374                         fpfn = 0;
 375                         lpfn = vram_pages / 2;
 376                 }
 377                 for (i = 0; i < nvbo->placement.num_placement; ++i) {
 378                         nvbo->placements[i].fpfn = fpfn;
 379                         nvbo->placements[i].lpfn = lpfn;
 380                 }
 381                 for (i = 0; i < nvbo->placement.num_busy_placement; ++i) {
 382                         nvbo->busy_placements[i].fpfn = fpfn;
 383                         nvbo->busy_placements[i].lpfn = lpfn;
 384                 }
 385         }
 386 }
 387
 388 void
 389 nouveau_bo_placement_set(struct nouveau_bo *nvbo, uint32_t type, uint32_t busy)
 390 {
 391         struct ttm_placement *pl = &nvbo->placement;
 392         uint32_t flags = (nvbo->force_coherent ? TTM_PL_FLAG_UNCACHED :
 393                                                  TTM_PL_MASK_CACHING) |
 394                          (nvbo->pin_refcnt ? TTM_PL_FLAG_NO_EVICT : 0);
 395
 396         pl->placement = nvbo->placements;
 397         set_placement_list(nvbo->placements, &pl->num_placement,
 398                            type, flags);
 399
 400         pl->busy_placement = nvbo->busy_placements;
 401         set_placement_list(nvbo->busy_placements, &pl->num_busy_placement,
 402                            type | busy, flags);
 403
 404         set_placement_range(nvbo, type);
 405 }
 406
 407 int
 408 nouveau_bo_pin(struct nouveau_bo *nvbo, uint32_t memtype, bool contig)
 409 {
 410         struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
 411         struct ttm_buffer_object *bo = &nvbo->bo;
 412         bool force = false, evict = false;
 413         int ret;
 414
 415         ret = ttm_bo_reserve(bo, false, false, NULL);
 416         if (ret)
 417                 return ret;
 418
 419         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA &&
 420             memtype == TTM_PL_FLAG_VRAM && contig) {
 421                 if (!nvbo->contig) {
 422                         nvbo->contig = true;
 423                         force = true;
 424                         evict = true;
 425                 }
 426         }
 427
 428         if (nvbo->pin_refcnt) {
 429                 if (!(memtype & (1 << bo->mem.mem_type)) || evict) {
 430                         NV_ERROR(drm, "bo %p pinned elsewhere: "
 431                                       "0x%08x vs 0x%08x\n", bo,
 432                                  1 << bo->mem.mem_type, memtype);
 433                         ret = -EBUSY;
 434                 }
 435                 nvbo->pin_refcnt++;
 436                 goto out;
 437         }
 438
 439         if (evict) {
 440                 nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_TT, 0);
 441                 ret = nouveau_bo_validate(nvbo, false, false);
 442                 if (ret)
 443                         goto out;
 444         }
 445
 446         nvbo->pin_refcnt++;
 447         nouveau_bo_placement_set(nvbo, memtype, 0);
 448
 449         /* drop pin_refcnt temporarily, so we don't trip the assertion
 450          * in nouveau_bo_move() that makes sure we're not trying to
 451          * move a pinned buffer
 452          */
 453         nvbo->pin_refcnt--;
 454         ret = nouveau_bo_validate(nvbo, false, false);
 455         if (ret)
 456                 goto out;
 457         nvbo->pin_refcnt++;
 458
 459         switch (bo->mem.mem_type) {
 460         case TTM_PL_VRAM:
 461                 drm->gem.vram_available -= bo->mem.size;
 462                 break;
 463         case TTM_PL_TT:
 464                 drm->gem.gart_available -= bo->mem.size;
 465                 break;
 466         default:
 467                 break;
 468         }
 469
 470 out:
 471         if (force && ret)
 472                 nvbo->contig = false;
 473         ttm_bo_unreserve(bo);
 474         return ret;
 475 }
 476
 477 int
 478 nouveau_bo_unpin(struct nouveau_bo *nvbo)
 479 {
 480         struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
 481         struct ttm_buffer_object *bo = &nvbo->bo;
 482         int ret, ref;
 483
 484         ret = ttm_bo_reserve(bo, false, false, NULL);
 485         if (ret)
 486                 return ret;
 487
 488         ref = --nvbo->pin_refcnt;
 489         WARN_ON_ONCE(ref < 0);
 490         if (ref)
 491                 goto out;
 492
 493         nouveau_bo_placement_set(nvbo, bo->mem.placement, 0);
 494
 495         ret = nouveau_bo_validate(nvbo, false, false);
 496         if (ret == 0) {
 497                 switch (bo->mem.mem_type) {
 498                 case TTM_PL_VRAM:
 499                         drm->gem.vram_available += bo->mem.size;
 500                         break;
 501                 case TTM_PL_TT:
 502                         drm->gem.gart_available += bo->mem.size;
 503                         break;
 504                 default:
 505                         break;
 506                 }
 507         }
 508
 509 out:
 510         ttm_bo_unreserve(bo);
 511         return ret;
 512 }
 513
 514 int
 515 nouveau_bo_map(struct nouveau_bo *nvbo)
 516 {
 517         int ret;
 518
 519         ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL);
 520         if (ret)
 521                 return ret;
 522
 523         ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages, &nvbo->kmap);
 524
 525         ttm_bo_unreserve(&nvbo->bo);
 526         return ret;
 527 }
 528
 529 void
 530 nouveau_bo_unmap(struct nouveau_bo *nvbo)
 531 {
 532         if (!nvbo)
 533                 return;
 534
 535         ttm_bo_kunmap(&nvbo->kmap);
 536 }
 537
 538 void
 539 nouveau_bo_sync_for_device(struct nouveau_bo *nvbo)
 540 {
 541         struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
 542         struct ttm_dma_tt *ttm_dma = (struct ttm_dma_tt *)nvbo->bo.ttm;
 543         int i;
 544
 545         if (!ttm_dma)
 546                 return;
 547
 548         /* Don't waste time looping if the object is coherent */
 549         if (nvbo->force_coherent)
 550                 return;
 551
 552         for (i = 0; i < ttm_dma->ttm.num_pages; i++)
 553                 dma_sync_single_for_device(drm->dev->dev,
 554                                            ttm_dma->dma_address[i],
 555                                            PAGE_SIZE, DMA_TO_DEVICE);
 556 }
 557
 558 void
 559 nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo)
 560 {
 561         struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
 562         struct ttm_dma_tt *ttm_dma = (struct ttm_dma_tt *)nvbo->bo.ttm;
 563         int i;
 564
 565         if (!ttm_dma)
 566                 return;
 567
 568         /* Don't waste time looping if the object is coherent */
 569         if (nvbo->force_coherent)
 570                 return;
 571
 572         for (i = 0; i < ttm_dma->ttm.num_pages; i++)
 573                 dma_sync_single_for_cpu(drm->dev->dev, ttm_dma->dma_address[i],
 574                                         PAGE_SIZE, DMA_FROM_DEVICE);
 575 }
 576
 577 int
 578 nouveau_bo_validate(struct nouveau_bo *nvbo, bool interruptible,
 579                     bool no_wait_gpu)
 580 {
 581         struct ttm_operation_ctx ctx = { interruptible, no_wait_gpu };
 582         int ret;
 583
 584         ret = ttm_bo_validate(&nvbo->bo, &nvbo->placement, &ctx);
 585         if (ret)
 586                 return ret;
 587
 588         nouveau_bo_sync_for_device(nvbo);
 589
 590         return 0;
 591 }
 592
 593 void
 594 nouveau_bo_wr16(struct nouveau_bo *nvbo, unsigned index, u16 val)
 595 {
 596         bool is_iomem;
 597         u16 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
 598
 599         mem += index;
 600
 601         if (is_iomem)
 602                 iowrite16_native(val, (void __force __iomem *)mem);
 603         else
 604                 *mem = val;
 605 }
 606
 607 u32
 608 nouveau_bo_rd32(struct nouveau_bo *nvbo, unsigned index)
 609 {
 610         bool is_iomem;
 611         u32 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
 612
 613         mem += index;
 614
 615         if (is_iomem)
 616                 return ioread32_native((void __force __iomem *)mem);
 617         else
 618                 return *mem;
 619 }
 620
 621 void
 622 nouveau_bo_wr32(struct nouveau_bo *nvbo, unsigned index, u32 val)
 623 {
 624         bool is_iomem;
 625         u32 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
 626
 627         mem += index;
 628
 629         if (is_iomem)
 630                 iowrite32_native(val, (void __force __iomem *)mem);
 631         else
 632                 *mem = val;
 633 }
 634
 635 static struct ttm_tt *
 636 nouveau_ttm_tt_create(struct ttm_buffer_object *bo, uint32_t page_flags)
 637 {
 638 #if IS_ENABLED(CONFIG_AGP)
 639         struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
 640
 641         if (drm->agp.bridge) {
 642                 return ttm_agp_tt_create(bo, drm->agp.bridge, page_flags);
 643         }
 644 #endif
 645
 646         return nouveau_sgdma_create_ttm(bo, page_flags);
 647 }
 648
 649 static int
 650 nouveau_bo_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags)
 651 {
 652         /* We'll do this from user space. */
 653         return 0;
 654 }
 655
 656 static int
 657 nouveau_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
 658                          struct ttm_mem_type_manager *man)
 659 {
 660         struct nouveau_drm *drm = nouveau_bdev(bdev);
 661         struct nvif_mmu *mmu = &drm->client.mmu;
 662
 663         switch (type) {
 664         case TTM_PL_SYSTEM:
 665                 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
 666                 man->available_caching = TTM_PL_MASK_CACHING;
 667                 man->default_caching = TTM_PL_FLAG_CACHED;
 668                 break;
 669         case TTM_PL_VRAM:
 670                 man->flags = TTM_MEMTYPE_FLAG_FIXED |
 671                              TTM_MEMTYPE_FLAG_MAPPABLE;
 672                 man->available_caching = TTM_PL_FLAG_UNCACHED |
 673                                          TTM_PL_FLAG_WC;
 674                 man->default_caching = TTM_PL_FLAG_WC;
 675
 676                 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 677                         /* Some BARs do not support being ioremapped WC */
 678                         const u8 type = mmu->type[drm->ttm.type_vram].type;
 679                         if (type & NVIF_MEM_UNCACHED) {
 680                                 man->available_caching = TTM_PL_FLAG_UNCACHED;
 681                                 man->default_caching = TTM_PL_FLAG_UNCACHED;
 682                         }
 683
 684                         man->func = &nouveau_vram_manager;
 685                         man->io_reserve_fastpath = false;
 686                         man->use_io_reserve_lru = true;
 687                 } else {
 688                         man->func = &ttm_bo_manager_func;
 689                 }
 690                 break;
 691         case TTM_PL_TT:
 692                 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA)
 693                         man->func = &nouveau_gart_manager;
 694                 else
 695                 if (!drm->agp.bridge)
 696                         man->func = &nv04_gart_manager;
 697                 else
 698                         man->func = &ttm_bo_manager_func;
 699
 700                 if (drm->agp.bridge) {
 701                         man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
 702                         man->available_caching = TTM_PL_FLAG_UNCACHED |
 703                                 TTM_PL_FLAG_WC;
 704                         man->default_caching = TTM_PL_FLAG_WC;
 705                 } else {
 706                         man->flags = TTM_MEMTYPE_FLAG_MAPPABLE |
 707                                      TTM_MEMTYPE_FLAG_CMA;
 708                         man->available_caching = TTM_PL_MASK_CACHING;
 709                         man->default_caching = TTM_PL_FLAG_CACHED;
 710                 }
 711
 712                 break;
 713         default:
 714                 return -EINVAL;
 715         }
 716         return 0;
 717 }
 718
 719 static void
 720 nouveau_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl)
 721 {
 722         struct nouveau_bo *nvbo = nouveau_bo(bo);
 723
 724         switch (bo->mem.mem_type) {
 725         case TTM_PL_VRAM:
 726                 nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_TT,
 727                                          TTM_PL_FLAG_SYSTEM);
 728                 break;
 729         default:
 730                 nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_SYSTEM, 0);
 731                 break;
 732         }
 733
 734         *pl = nvbo->placement;
 735 }
 736
 737
 738 static int
 739 nve0_bo_move_init(struct nouveau_channel *chan, u32 handle)
 740 {
 741         int ret = RING_SPACE(chan, 2);
 742         if (ret == 0) {
 743                 BEGIN_NVC0(chan, NvSubCopy, 0x0000, 1);
 744                 OUT_RING  (chan, handle & 0x0000ffff);
 745                 FIRE_RING (chan);
 746         }
 747         return ret;
 748 }
 749
 750 static int
 751 nve0_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
 752                   struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
 753 {
 754         struct nouveau_mem *mem = nouveau_mem(old_reg);
 755         int ret = RING_SPACE(chan, 10);
 756         if (ret == 0) {
 757                 BEGIN_NVC0(chan, NvSubCopy, 0x0400, 8);
 758                 OUT_RING  (chan, upper_32_bits(mem->vma[0].addr));
 759                 OUT_RING  (chan, lower_32_bits(mem->vma[0].addr));
 760                 OUT_RING  (chan, upper_32_bits(mem->vma[1].addr));
 761                 OUT_RING  (chan, lower_32_bits(mem->vma[1].addr));
 762                 OUT_RING  (chan, PAGE_SIZE);
 763                 OUT_RING  (chan, PAGE_SIZE);
 764                 OUT_RING  (chan, PAGE_SIZE);
 765                 OUT_RING  (chan, new_reg->num_pages);
 766                 BEGIN_IMC0(chan, NvSubCopy, 0x0300, 0x0386);
 767         }
 768         return ret;
 769 }
 770
 771 static int
 772 nvc0_bo_move_init(struct nouveau_channel *chan, u32 handle)
 773 {
 774         int ret = RING_SPACE(chan, 2);
 775         if (ret == 0) {
 776                 BEGIN_NVC0(chan, NvSubCopy, 0x0000, 1);
 777                 OUT_RING  (chan, handle);
 778         }
 779         return ret;
 780 }
 781
 782 static int
 783 nvc0_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
 784                   struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
 785 {
 786         struct nouveau_mem *mem = nouveau_mem(old_reg);
 787         u64 src_offset = mem->vma[0].addr;
 788         u64 dst_offset = mem->vma[1].addr;
 789         u32 page_count = new_reg->num_pages;
 790         int ret;
 791
 792         page_count = new_reg->num_pages;
 793         while (page_count) {
 794                 int line_count = (page_count > 8191) ? 8191 : page_count;
 795
 796                 ret = RING_SPACE(chan, 11);
 797                 if (ret)
 798                         return ret;
 799
 800                 BEGIN_NVC0(chan, NvSubCopy, 0x030c, 8);
 801                 OUT_RING  (chan, upper_32_bits(src_offset));
 802                 OUT_RING  (chan, lower_32_bits(src_offset));
 803                 OUT_RING  (chan, upper_32_bits(dst_offset));
 804                 OUT_RING  (chan, lower_32_bits(dst_offset));
 805                 OUT_RING  (chan, PAGE_SIZE);
 806                 OUT_RING  (chan, PAGE_SIZE);
 807                 OUT_RING  (chan, PAGE_SIZE);
 808                 OUT_RING  (chan, line_count);
 809                 BEGIN_NVC0(chan, NvSubCopy, 0x0300, 1);
 810                 OUT_RING  (chan, 0x00000110);
 811
 812                 page_count -= line_count;
 813                 src_offset += (PAGE_SIZE * line_count);
 814                 dst_offset += (PAGE_SIZE * line_count);
 815         }
 816
 817         return 0;
 818 }
 819
 820 static int
 821 nvc0_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
 822                   struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
 823 {
 824         struct nouveau_mem *mem = nouveau_mem(old_reg);
 825         u64 src_offset = mem->vma[0].addr;
 826         u64 dst_offset = mem->vma[1].addr;
 827         u32 page_count = new_reg->num_pages;
 828         int ret;
 829
 830         page_count = new_reg->num_pages;
 831         while (page_count) {
 832                 int line_count = (page_count > 2047) ? 2047 : page_count;
 833
 834                 ret = RING_SPACE(chan, 12);
 835                 if (ret)
 836                         return ret;
 837
 838                 BEGIN_NVC0(chan, NvSubCopy, 0x0238, 2);
 839                 OUT_RING  (chan, upper_32_bits(dst_offset));
 840                 OUT_RING  (chan, lower_32_bits(dst_offset));
 841                 BEGIN_NVC0(chan, NvSubCopy, 0x030c, 6);
 842                 OUT_RING  (chan, upper_32_bits(src_offset));
 843                 OUT_RING  (chan, lower_32_bits(src_offset));
 844                 OUT_RING  (chan, PAGE_SIZE); /* src_pitch */
 845                 OUT_RING  (chan, PAGE_SIZE); /* dst_pitch */
 846                 OUT_RING  (chan, PAGE_SIZE); /* line_length */
 847                 OUT_RING  (chan, line_count);
 848                 BEGIN_NVC0(chan, NvSubCopy, 0x0300, 1);
 849                 OUT_RING  (chan, 0x00100110);
 850
 851                 page_count -= line_count;
 852                 src_offset += (PAGE_SIZE * line_count);
 853                 dst_offset += (PAGE_SIZE * line_count);
 854         }
 855
 856         return 0;
 857 }
 858
 859 static int
 860 nva3_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
 861                   struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
 862 {
 863         struct nouveau_mem *mem = nouveau_mem(old_reg);
 864         u64 src_offset = mem->vma[0].addr;
 865         u64 dst_offset = mem->vma[1].addr;
 866         u32 page_count = new_reg->num_pages;
 867         int ret;
 868
 869         page_count = new_reg->num_pages;
 870         while (page_count) {
 871                 int line_count = (page_count > 8191) ? 8191 : page_count;
 872
 873                 ret = RING_SPACE(chan, 11);
 874                 if (ret)
 875                         return ret;
 876
 877                 BEGIN_NV04(chan, NvSubCopy, 0x030c, 8);
 878                 OUT_RING  (chan, upper_32_bits(src_offset));
 879                 OUT_RING  (chan, lower_32_bits(src_offset));
 880                 OUT_RING  (chan, upper_32_bits(dst_offset));
 881                 OUT_RING  (chan, lower_32_bits(dst_offset));
 882                 OUT_RING  (chan, PAGE_SIZE);
 883                 OUT_RING  (chan, PAGE_SIZE);
 884                 OUT_RING  (chan, PAGE_SIZE);
 885                 OUT_RING  (chan, line_count);
 886                 BEGIN_NV04(chan, NvSubCopy, 0x0300, 1);
 887                 OUT_RING  (chan, 0x00000110);
 888
 889                 page_count -= line_count;
 890                 src_offset += (PAGE_SIZE * line_count);
 891                 dst_offset += (PAGE_SIZE * line_count);
 892         }
 893
 894         return 0;
 895 }
 896
 897 static int
 898 nv98_bo_move_exec(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
 899                   struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
 900 {
 901         struct nouveau_mem *mem = nouveau_mem(old_reg);
 902         int ret = RING_SPACE(chan, 7);
 903         if (ret == 0) {
 904                 BEGIN_NV04(chan, NvSubCopy, 0x0320, 6);
 905                 OUT_RING  (chan, upper_32_bits(mem->vma[0].addr));
 906                 OUT_RING  (chan, lower_32_bits(mem->vma[0].addr));
 907                 OUT_RING  (chan, upper_32_bits(mem->vma[1].addr));
 908                 OUT_RING  (chan, lower_32_bits(mem->vma[1].addr));
 909                 OUT_RING  (chan, 0x00000000 /* COPY */);
 910                 OUT_RING  (chan, new_reg->num_pages << PAGE_SHIFT);
 911         }
 912         return ret;
 913 }
 914
 915 static int
 916 nv84_bo_move_exec(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
 917                   struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
 918 {
 919         struct nouveau_mem *mem = nouveau_mem(old_reg);
 920         int ret = RING_SPACE(chan, 7);
 921         if (ret == 0) {
 922                 BEGIN_NV04(chan, NvSubCopy, 0x0304, 6);
 923                 OUT_RING  (chan, new_reg->num_pages << PAGE_SHIFT);
 924                 OUT_RING  (chan, upper_32_bits(mem->vma[0].addr));
 925                 OUT_RING  (chan, lower_32_bits(mem->vma[0].addr));
 926                 OUT_RING  (chan, upper_32_bits(mem->vma[1].addr));
 927                 OUT_RING  (chan, lower_32_bits(mem->vma[1].addr));
 928                 OUT_RING  (chan, 0x00000000 /* MODE_COPY, QUERY_NONE */);
 929         }
 930         return ret;
 931 }
 932
 933 static int
 934 nv50_bo_move_init(struct nouveau_channel *chan, u32 handle)
 935 {
 936         int ret = RING_SPACE(chan, 6);
 937         if (ret == 0) {
 938                 BEGIN_NV04(chan, NvSubCopy, 0x0000, 1);
 939                 OUT_RING  (chan, handle);
 940                 BEGIN_NV04(chan, NvSubCopy, 0x0180, 3);
 941                 OUT_RING  (chan, chan->drm->ntfy.handle);
 942                 OUT_RING  (chan, chan->vram.handle);
 943                 OUT_RING  (chan, chan->vram.handle);
 944         }
 945
 946         return ret;
 947 }
 948
 949 static int
 950 nv50_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
 951                   struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
 952 {
 953         struct nouveau_mem *mem = nouveau_mem(old_reg);
 954         u64 length = (new_reg->num_pages << PAGE_SHIFT);
 955         u64 src_offset = mem->vma[0].addr;
 956         u64 dst_offset = mem->vma[1].addr;
 957         int src_tiled = !!mem->kind;
 958         int dst_tiled = !!nouveau_mem(new_reg)->kind;
 959         int ret;
 960
 961         while (length) {
 962                 u32 amount, stride, height;
 963
 964                 ret = RING_SPACE(chan, 18 + 6 * (src_tiled + dst_tiled));
 965                 if (ret)
 966                         return ret;
 967
 968                 amount  = min(length, (u64)(4 * 1024 * 1024));
 969                 stride  = 16 * 4;
 970                 height  = amount / stride;
 971
 972                 if (src_tiled) {
 973                         BEGIN_NV04(chan, NvSubCopy, 0x0200, 7);
 974                         OUT_RING  (chan, 0);
 975                         OUT_RING  (chan, 0);
 976                         OUT_RING  (chan, stride);
 977                         OUT_RING  (chan, height);
 978                         OUT_RING  (chan, 1);
 979                         OUT_RING  (chan, 0);
 980                         OUT_RING  (chan, 0);
 981                 } else {
 982                         BEGIN_NV04(chan, NvSubCopy, 0x0200, 1);
 983                         OUT_RING  (chan, 1);
 984                 }
 985                 if (dst_tiled) {
 986                         BEGIN_NV04(chan, NvSubCopy, 0x021c, 7);
 987                         OUT_RING  (chan, 0);
 988                         OUT_RING  (chan, 0);
 989                         OUT_RING  (chan, stride);
 990                         OUT_RING  (chan, height);
 991                         OUT_RING  (chan, 1);
 992                         OUT_RING  (chan, 0);
 993                         OUT_RING  (chan, 0);
 994                 } else {
 995                         BEGIN_NV04(chan, NvSubCopy, 0x021c, 1);
 996                         OUT_RING  (chan, 1);
 997                 }
 998
 999                 BEGIN_NV04(chan, NvSubCopy, 0x0238, 2);
1000                 OUT_RING  (chan, upper_32_bits(src_offset));
1001                 OUT_RING  (chan, upper_32_bits(dst_offset));
1002                 BEGIN_NV04(chan, NvSubCopy, 0x030c, 8);
1003                 OUT_RING  (chan, lower_32_bits(src_offset));
1004                 OUT_RING  (chan, lower_32_bits(dst_offset));
1005                 OUT_RING  (chan, stride);
1006                 OUT_RING  (chan, stride);
1007                 OUT_RING  (chan, stride);
1008                 OUT_RING  (chan, height);
1009                 OUT_RING  (chan, 0x00000101);
1010                 OUT_RING  (chan, 0x00000000);
1011                 BEGIN_NV04(chan, NvSubCopy, NV_MEMORY_TO_MEMORY_FORMAT_NOP, 1);
1012                 OUT_RING  (chan, 0);
1013
1014                 length -= amount;
1015                 src_offset += amount;
1016                 dst_offset += amount;
1017         }
1018
1019         return 0;
1020 }
1021
1022 static int
1023 nv04_bo_move_init(struct nouveau_channel *chan, u32 handle)
1024 {
1025         int ret = RING_SPACE(chan, 4);
1026         if (ret == 0) {
1027                 BEGIN_NV04(chan, NvSubCopy, 0x0000, 1);
1028                 OUT_RING  (chan, handle);
1029                 BEGIN_NV04(chan, NvSubCopy, 0x0180, 1);
1030                 OUT_RING  (chan, chan->drm->ntfy.handle);
1031         }
1032
1033         return ret;
1034 }
1035
1036 static inline uint32_t
1037 nouveau_bo_mem_ctxdma(struct ttm_buffer_object *bo,
1038                       struct nouveau_channel *chan, struct ttm_mem_reg *reg)
1039 {
1040         if (reg->mem_type == TTM_PL_TT)
1041                 return NvDmaTT;
1042         return chan->vram.handle;
1043 }
1044
1045 static int
1046 nv04_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
1047                   struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
1048 {
1049         u32 src_offset = old_reg->start << PAGE_SHIFT;
1050         u32 dst_offset = new_reg->start << PAGE_SHIFT;
1051         u32 page_count = new_reg->num_pages;
1052         int ret;
1053
1054         ret = RING_SPACE(chan, 3);
1055         if (ret)
1056                 return ret;
1057
1058         BEGIN_NV04(chan, NvSubCopy, NV_MEMORY_TO_MEMORY_FORMAT_DMA_SOURCE, 2);
1059         OUT_RING  (chan, nouveau_bo_mem_ctxdma(bo, chan, old_reg));
1060         OUT_RING  (chan, nouveau_bo_mem_ctxdma(bo, chan, new_reg));
1061
1062         page_count = new_reg->num_pages;
1063         while (page_count) {
1064                 int line_count = (page_count > 2047) ? 2047 : page_count;
1065
1066                 ret = RING_SPACE(chan, 11);
1067                 if (ret)
1068                         return ret;
1069
1070                 BEGIN_NV04(chan, NvSubCopy,
1071                                  NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8);
1072                 OUT_RING  (chan, src_offset);
1073                 OUT_RING  (chan, dst_offset);
1074                 OUT_RING  (chan, PAGE_SIZE); /* src_pitch */
1075                 OUT_RING  (chan, PAGE_SIZE); /* dst_pitch */
1076                 OUT_RING  (chan, PAGE_SIZE); /* line_length */
1077                 OUT_RING  (chan, line_count);
1078                 OUT_RING  (chan, 0x00000101);
1079                 OUT_RING  (chan, 0x00000000);
1080                 BEGIN_NV04(chan, NvSubCopy, NV_MEMORY_TO_MEMORY_FORMAT_NOP, 1);
1081                 OUT_RING  (chan, 0);
1082
1083                 page_count -= line_count;
1084                 src_offset += (PAGE_SIZE * line_count);
1085                 dst_offset += (PAGE_SIZE * line_count);
1086         }
1087
1088         return 0;
1089 }
1090
1091 static int
1092 nouveau_bo_move_prep(struct nouveau_drm *drm, struct ttm_buffer_object *bo,
1093                      struct ttm_mem_reg *reg)
1094 {
1095         struct nouveau_mem *old_mem = nouveau_mem(&bo->mem);
1096         struct nouveau_mem *new_mem = nouveau_mem(reg);
1097         struct nvif_vmm *vmm = &drm->client.vmm.vmm;
1098         int ret;
1099
1100         ret = nvif_vmm_get(vmm, LAZY, false, old_mem->mem.page, 0,
1101                            old_mem->mem.size, &old_mem->vma[0]);
1102         if (ret)
1103                 return ret;
1104
1105         ret = nvif_vmm_get(vmm, LAZY, false, new_mem->mem.page, 0,
1106                            new_mem->mem.size, &old_mem->vma[1]);
1107         if (ret)
1108                 goto done;
1109
1110         ret = nouveau_mem_map(old_mem, vmm, &old_mem->vma[0]);
1111         if (ret)
1112                 goto done;
1113
1114         ret = nouveau_mem_map(new_mem, vmm, &old_mem->vma[1]);
1115 done:
1116         if (ret) {
1117                 nvif_vmm_put(vmm, &old_mem->vma[1]);
1118                 nvif_vmm_put(vmm, &old_mem->vma[0]);
1119         }
1120         return 0;
1121 }
1122
1123 static int
1124 nouveau_bo_move_m2mf(struct ttm_buffer_object *bo, int evict, bool intr,
1125                      bool no_wait_gpu, struct ttm_mem_reg *new_reg)
1126 {
1127         struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
1128         struct nouveau_channel *chan = drm->ttm.chan;
1129         struct nouveau_cli *cli = (void *)chan->user.client;
1130         struct nouveau_fence *fence;
1131         int ret;
1132
1133         /* create temporary vmas for the transfer and attach them to the
1134          * old nvkm_mem node, these will get cleaned up after ttm has
1135          * destroyed the ttm_mem_reg
1136          */
1137         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
1138                 ret = nouveau_bo_move_prep(drm, bo, new_reg);
1139                 if (ret)
1140                         return ret;
1141         }
1142
1143         mutex_lock_nested(&cli->mutex, SINGLE_DEPTH_NESTING);
1144         ret = nouveau_fence_sync(nouveau_bo(bo), chan, true, intr);
1145         if (ret == 0) {
1146                 ret = drm->ttm.move(chan, bo, &bo->mem, new_reg);
1147                 if (ret == 0) {
1148                         ret = nouveau_fence_new(chan, false, &fence);
1149                         if (ret == 0) {
1150                                 ret = ttm_bo_move_accel_cleanup(bo,
1151                                                                 &fence->base,
1152                                                                 evict,
1153                                                                 new_reg);
1154                                 nouveau_fence_unref(&fence);
1155                         }
1156                 }
1157         }
1158         mutex_unlock(&cli->mutex);
1159         return ret;
1160 }
1161
1162 void
1163 nouveau_bo_move_init(struct nouveau_drm *drm)
1164 {
1165         static const struct _method_table {
1166                 const char *name;
1167                 int engine;
1168                 s32 oclass;
1169                 int (*exec)(struct nouveau_channel *,
1170                             struct ttm_buffer_object *,
1171                             struct ttm_mem_reg *, struct ttm_mem_reg *);
1172                 int (*init)(struct nouveau_channel *, u32 handle);
1173         } _methods[] = {
1174                 {  "COPY", 4, 0xc5b5, nve0_bo_move_copy, nve0_bo_move_init },
1175                 {  "GRCE", 0, 0xc5b5, nve0_bo_move_copy, nvc0_bo_move_init },
1176                 {  "COPY", 4, 0xc3b5, nve0_bo_move_copy, nve0_bo_move_init },
1177                 {  "GRCE", 0, 0xc3b5, nve0_bo_move_copy, nvc0_bo_move_init },
1178                 {  "COPY", 4, 0xc1b5, nve0_bo_move_copy, nve0_bo_move_init },
1179                 {  "GRCE", 0, 0xc1b5, nve0_bo_move_copy, nvc0_bo_move_init },
1180                 {  "COPY", 4, 0xc0b5, nve0_bo_move_copy, nve0_bo_move_init },
1181                 {  "GRCE", 0, 0xc0b5, nve0_bo_move_copy, nvc0_bo_move_init },
1182                 {  "COPY", 4, 0xb0b5, nve0_bo_move_copy, nve0_bo_move_init },
1183                 {  "GRCE", 0, 0xb0b5, nve0_bo_move_copy, nvc0_bo_move_init },
1184                 {  "COPY", 4, 0xa0b5, nve0_bo_move_copy, nve0_bo_move_init },
1185                 {  "GRCE", 0, 0xa0b5, nve0_bo_move_copy, nvc0_bo_move_init },
1186                 { "COPY1", 5, 0x90b8, nvc0_bo_move_copy, nvc0_bo_move_init },
1187                 { "COPY0", 4, 0x90b5, nvc0_bo_move_copy, nvc0_bo_move_init },
1188                 {  "COPY", 0, 0x85b5, nva3_bo_move_copy, nv50_bo_move_init },
1189                 { "CRYPT", 0, 0x74c1, nv84_bo_move_exec, nv50_bo_move_init },
1190                 {  "M2MF", 0, 0x9039, nvc0_bo_move_m2mf, nvc0_bo_move_init },
1191                 {  "M2MF", 0, 0x5039, nv50_bo_move_m2mf, nv50_bo_move_init },
1192                 {  "M2MF", 0, 0x0039, nv04_bo_move_m2mf, nv04_bo_move_init },
1193                 {},
1194                 { "CRYPT", 0, 0x88b4, nv98_bo_move_exec, nv50_bo_move_init },
1195         };
1196         const struct _method_table *mthd = _methods;
1197         const char *name = "CPU";
1198         int ret;
1199
1200         do {
1201                 struct nouveau_channel *chan;
1202
1203                 if (mthd->engine)
1204                         chan = drm->cechan;
1205                 else
1206                         chan = drm->channel;
1207                 if (chan == NULL)
1208                         continue;
1209
1210                 ret = nvif_object_init(&chan->user,
1211                                        mthd->oclass | (mthd->engine << 16),
1212                                        mthd->oclass, NULL, 0,
1213                                        &drm->ttm.copy);
1214                 if (ret == 0) {
1215                         ret = mthd->init(chan, drm->ttm.copy.handle);
1216                         if (ret) {
1217                                 nvif_object_fini(&drm->ttm.copy);
1218                                 continue;
1219                         }
1220
1221                         drm->ttm.move = mthd->exec;
1222                         drm->ttm.chan = chan;
1223                         name = mthd->name;
1224                         break;
1225                 }
1226         } while ((++mthd)->exec);
1227
1228         NV_INFO(drm, "MM: using %s for buffer copies\n", name);
1229 }
1230
1231 static int
1232 nouveau_bo_move_flipd(struct ttm_buffer_object *bo, bool evict, bool intr,
1233                       bool no_wait_gpu, struct ttm_mem_reg *new_reg)
1234 {
1235         struct ttm_operation_ctx ctx = { intr, no_wait_gpu };
1236         struct ttm_place placement_memtype = {
1237                 .fpfn = 0,
1238                 .lpfn = 0,
1239                 .flags = TTM_PL_FLAG_TT | TTM_PL_MASK_CACHING
1240         };
1241         struct ttm_placement placement;
1242         struct ttm_mem_reg tmp_reg;
1243         int ret;
1244
1245         placement.num_placement = placement.num_busy_placement = 1;
1246         placement.placement = placement.busy_placement = &placement_memtype;
1247
1248         tmp_reg = *new_reg;
1249         tmp_reg.mm_node = NULL;
1250         ret = ttm_bo_mem_space(bo, &placement, &tmp_reg, &ctx);
1251         if (ret)
1252                 return ret;
1253
1254         ret = ttm_tt_bind(bo->ttm, &tmp_reg, &ctx);
1255         if (ret)
1256                 goto out;
1257
1258         ret = nouveau_bo_move_m2mf(bo, true, intr, no_wait_gpu, &tmp_reg);
1259         if (ret)
1260                 goto out;
1261
1262         ret = ttm_bo_move_ttm(bo, &ctx, new_reg);
1263 out:
1264         ttm_bo_mem_put(bo, &tmp_reg);
1265         return ret;
1266 }
1267
1268 static int
1269 nouveau_bo_move_flips(struct ttm_buffer_object *bo, bool evict, bool intr,
1270                       bool no_wait_gpu, struct ttm_mem_reg *new_reg)
1271 {
1272         struct ttm_operation_ctx ctx = { intr, no_wait_gpu };
1273         struct ttm_place placement_memtype = {
1274                 .fpfn = 0,
1275                 .lpfn = 0,
1276                 .flags = TTM_PL_FLAG_TT | TTM_PL_MASK_CACHING
1277         };
1278         struct ttm_placement placement;
1279         struct ttm_mem_reg tmp_reg;
1280         int ret;
1281
1282         placement.num_placement = placement.num_busy_placement = 1;
1283         placement.placement = placement.busy_placement = &placement_memtype;
1284
1285         tmp_reg = *new_reg;
1286         tmp_reg.mm_node = NULL;
1287         ret = ttm_bo_mem_space(bo, &placement, &tmp_reg, &ctx);
1288         if (ret)
1289                 return ret;
1290
1291         ret = ttm_bo_move_ttm(bo, &ctx, &tmp_reg);
1292         if (ret)
1293                 goto out;
1294
1295         ret = nouveau_bo_move_m2mf(bo, true, intr, no_wait_gpu, new_reg);
1296         if (ret)
1297                 goto out;
1298
1299 out:
1300         ttm_bo_mem_put(bo, &tmp_reg);
1301         return ret;
1302 }
1303
1304 static void
1305 nouveau_bo_move_ntfy(struct ttm_buffer_object *bo, bool evict,
1306                      struct ttm_mem_reg *new_reg)
1307 {
1308         struct nouveau_mem *mem = new_reg ? nouveau_mem(new_reg) : NULL;
1309         struct nouveau_bo *nvbo = nouveau_bo(bo);
1310         struct nouveau_vma *vma;
1311
1312         /* ttm can now (stupidly) pass the driver bos it didn't create... */
1313         if (bo->destroy != nouveau_bo_del_ttm)
1314                 return;
1315
1316         if (mem && new_reg->mem_type != TTM_PL_SYSTEM &&
1317             mem->mem.page == nvbo->page) {
1318                 list_for_each_entry(vma, &nvbo->vma_list, head) {
1319                         nouveau_vma_map(vma, mem);
1320                 }
1321         } else {
1322                 list_for_each_entry(vma, &nvbo->vma_list, head) {
1323                         WARN_ON(ttm_bo_wait(bo, false, false));
1324                         nouveau_vma_unmap(vma);
1325                 }
1326         }
1327 }
1328
1329 static int
1330 nouveau_bo_vm_bind(struct ttm_buffer_object *bo, struct ttm_mem_reg *new_reg,
1331                    struct nouveau_drm_tile **new_tile)
1332 {
1333         struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
1334         struct drm_device *dev = drm->dev;
1335         struct nouveau_bo *nvbo = nouveau_bo(bo);
1336         u64 offset = new_reg->start << PAGE_SHIFT;
1337
1338         *new_tile = NULL;
1339         if (new_reg->mem_type != TTM_PL_VRAM)
1340                 return 0;
1341
1342         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_CELSIUS) {
1343                 *new_tile = nv10_bo_set_tiling(dev, offset, new_reg->size,
1344                                                nvbo->mode, nvbo->zeta);
1345         }
1346
1347         return 0;
1348 }
1349
1350 static void
1351 nouveau_bo_vm_cleanup(struct ttm_buffer_object *bo,
1352                       struct nouveau_drm_tile *new_tile,
1353                       struct nouveau_drm_tile **old_tile)
1354 {
1355         struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
1356         struct drm_device *dev = drm->dev;
1357         struct dma_fence *fence = dma_resv_get_excl(bo->base.resv);
1358
1359         nv10_bo_put_tile_region(dev, *old_tile, fence);
1360         *old_tile = new_tile;
1361 }
1362
1363 static int
1364 nouveau_bo_move(struct ttm_buffer_object *bo, bool evict,
1365                 struct ttm_operation_ctx *ctx,
1366                 struct ttm_mem_reg *new_reg)
1367 {
1368         struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
1369         struct nouveau_bo *nvbo = nouveau_bo(bo);
1370         struct ttm_mem_reg *old_reg = &bo->mem;
1371         struct nouveau_drm_tile *new_tile = NULL;
1372         int ret = 0;
1373
1374         ret = ttm_bo_wait(bo, ctx->interruptible, ctx->no_wait_gpu);
1375         if (ret)
1376                 return ret;
1377
1378         if (nvbo->pin_refcnt)
1379                 NV_WARN(drm, "Moving pinned object %p!\n", nvbo);
1380
1381         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
1382                 ret = nouveau_bo_vm_bind(bo, new_reg, &new_tile);
1383                 if (ret)
1384                         return ret;
1385         }
1386
1387         /* Fake bo copy. */
1388         if (old_reg->mem_type == TTM_PL_SYSTEM && !bo->ttm) {
1389                 BUG_ON(bo->mem.mm_node != NULL);
1390                 bo->mem = *new_reg;
1391                 new_reg->mm_node = NULL;
1392                 goto out;
1393         }
1394
1395         /* Hardware assisted copy. */
1396         if (drm->ttm.move) {
1397                 if (new_reg->mem_type == TTM_PL_SYSTEM)
1398                         ret = nouveau_bo_move_flipd(bo, evict,
1399                                                     ctx->interruptible,
1400                                                     ctx->no_wait_gpu, new_reg);
1401                 else if (old_reg->mem_type == TTM_PL_SYSTEM)
1402                         ret = nouveau_bo_move_flips(bo, evict,
1403                                                     ctx->interruptible,
1404                                                     ctx->no_wait_gpu, new_reg);
1405                 else
1406                         ret = nouveau_bo_move_m2mf(bo, evict,
1407                                                    ctx->interruptible,
1408                                                    ctx->no_wait_gpu, new_reg);
1409                 if (!ret)
1410                         goto out;
1411         }
1412
1413         /* Fallback to software copy. */
1414         ret = ttm_bo_wait(bo, ctx->interruptible, ctx->no_wait_gpu);
1415         if (ret == 0)
1416                 ret = ttm_bo_move_memcpy(bo, ctx, new_reg);
1417
1418 out:
1419         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
1420                 if (ret)
1421                         nouveau_bo_vm_cleanup(bo, NULL, &new_tile);
1422                 else
1423                         nouveau_bo_vm_cleanup(bo, new_tile, &nvbo->tile);
1424         }
1425
1426         return ret;
1427 }
1428
1429 static int
1430 nouveau_bo_verify_access(struct ttm_buffer_object *bo, struct file *filp)
1431 {
1432         struct nouveau_bo *nvbo = nouveau_bo(bo);
1433
1434         return drm_vma_node_verify_access(&nvbo->bo.base.vma_node,
1435                                           filp->private_data);
1436 }
1437
1438 static int
1439 nouveau_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *reg)
1440 {
1441         struct ttm_mem_type_manager *man = &bdev->man[reg->mem_type];
1442         struct nouveau_drm *drm = nouveau_bdev(bdev);
1443         struct nvkm_device *device = nvxx_device(&drm->client.device);
1444         struct nouveau_mem *mem = nouveau_mem(reg);
1445
1446         reg->bus.addr = NULL;
1447         reg->bus.offset = 0;
1448         reg->bus.size = reg->num_pages << PAGE_SHIFT;
1449         reg->bus.base = 0;
1450         reg->bus.is_iomem = false;
1451         if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
1452                 return -EINVAL;
1453         switch (reg->mem_type) {
1454         case TTM_PL_SYSTEM:
1455                 /* System memory */
1456                 return 0;
1457         case TTM_PL_TT:
1458 #if IS_ENABLED(CONFIG_AGP)
1459                 if (drm->agp.bridge) {
1460                         reg->bus.offset = reg->start << PAGE_SHIFT;
1461                         reg->bus.base = drm->agp.base;
1462                         reg->bus.is_iomem = !drm->agp.cma;
1463                 }
1464 #endif
1465                 if (drm->client.mem->oclass < NVIF_CLASS_MEM_NV50 || !mem->kind)
1466                         /* untiled */
1467                         break;
1468                 /* fall through - tiled memory */
1469         case TTM_PL_VRAM:
1470                 reg->bus.offset = reg->start << PAGE_SHIFT;
1471                 reg->bus.base = device->func->resource_addr(device, 1);
1472                 reg->bus.is_iomem = true;
1473                 if (drm->client.mem->oclass >= NVIF_CLASS_MEM_NV50) {
1474                         union {
1475                                 struct nv50_mem_map_v0 nv50;
1476                                 struct gf100_mem_map_v0 gf100;
1477                         } args;
1478                         u64 handle, length;
1479                         u32 argc = 0;
1480                         int ret;
1481
1482                         switch (mem->mem.object.oclass) {
1483                         case NVIF_CLASS_MEM_NV50:
1484                                 args.nv50.version = 0;
1485                                 args.nv50.ro = 0;
1486                                 args.nv50.kind = mem->kind;
1487                                 args.nv50.comp = mem->comp;
1488                                 argc = sizeof(args.nv50);
1489                                 break;
1490                         case NVIF_CLASS_MEM_GF100:
1491                                 args.gf100.version = 0;
1492                                 args.gf100.ro = 0;
1493                                 args.gf100.kind = mem->kind;
1494                                 argc = sizeof(args.gf100);
1495                                 break;
1496                         default:
1497                                 WARN_ON(1);
1498                                 break;
1499                         }
1500
1501                         ret = nvif_object_map_handle(&mem->mem.object,
1502                                                      &args, argc,
1503                                                      &handle, &length);
1504                         if (ret != 1)
1505                                 return ret ? ret : -EINVAL;
1506
1507                         reg->bus.base = 0;
1508                         reg->bus.offset = handle;
1509                 }
1510                 break;
1511         default:
1512                 return -EINVAL;
1513         }
1514         return 0;
1515 }
1516
1517 static void
1518 nouveau_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *reg)
1519 {
1520         struct nouveau_drm *drm = nouveau_bdev(bdev);
1521         struct nouveau_mem *mem = nouveau_mem(reg);
1522
1523         if (drm->client.mem->oclass >= NVIF_CLASS_MEM_NV50) {
1524                 switch (reg->mem_type) {
1525                 case TTM_PL_TT:
1526                         if (mem->kind)
1527                                 nvif_object_unmap_handle(&mem->mem.object);
1528                         break;
1529                 case TTM_PL_VRAM:
1530                         nvif_object_unmap_handle(&mem->mem.object);
1531                         break;
1532                 default:
1533                         break;
1534                 }
1535         }
1536 }
1537
1538 static int
1539 nouveau_ttm_fault_reserve_notify(struct ttm_buffer_object *bo)
1540 {
1541         struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
1542         struct nouveau_bo *nvbo = nouveau_bo(bo);
1543         struct nvkm_device *device = nvxx_device(&drm->client.device);
1544         u32 mappable = device->func->resource_size(device, 1) >> PAGE_SHIFT;
1545         int i, ret;
1546
1547         /* as long as the bo isn't in vram, and isn't tiled, we've got
1548          * nothing to do here.
1549          */
1550         if (bo->mem.mem_type != TTM_PL_VRAM) {
1551                 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA ||
1552                     !nvbo->kind)
1553                         return 0;
1554
1555                 if (bo->mem.mem_type == TTM_PL_SYSTEM) {
1556                         nouveau_bo_placement_set(nvbo, TTM_PL_TT, 0);
1557
1558                         ret = nouveau_bo_validate(nvbo, false, false);
1559                         if (ret)
1560                                 return ret;
1561                 }
1562                 return 0;
1563         }
1564
1565         /* make sure bo is in mappable vram */
1566         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA ||
1567             bo->mem.start + bo->mem.num_pages < mappable)
1568                 return 0;
1569
1570         for (i = 0; i < nvbo->placement.num_placement; ++i) {
1571                 nvbo->placements[i].fpfn = 0;
1572                 nvbo->placements[i].lpfn = mappable;
1573         }
1574
1575         for (i = 0; i < nvbo->placement.num_busy_placement; ++i) {
1576                 nvbo->busy_placements[i].fpfn = 0;
1577                 nvbo->busy_placements[i].lpfn = mappable;
1578         }
1579
1580         nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_VRAM, 0);
1581         return nouveau_bo_validate(nvbo, false, false);
1582 }
1583
1584 static int
1585 nouveau_ttm_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
1586 {
1587         struct ttm_dma_tt *ttm_dma = (void *)ttm;
1588         struct nouveau_drm *drm;
1589         struct device *dev;
1590         unsigned i;
1591         int r;
1592         bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG);
1593
1594         if (ttm->state != tt_unpopulated)
1595                 return 0;
1596
1597         if (slave && ttm->sg) {
1598                 /* make userspace faulting work */
1599                 drm_prime_sg_to_page_addr_arrays(ttm->sg, ttm->pages,
1600                                                  ttm_dma->dma_address, ttm->num_pages);
1601                 ttm->state = tt_unbound;
1602                 return 0;
1603         }
1604
1605         drm = nouveau_bdev(ttm->bdev);
1606         dev = drm->dev->dev;
1607
1608 #if IS_ENABLED(CONFIG_AGP)
1609         if (drm->agp.bridge) {
1610                 return ttm_agp_tt_populate(ttm, ctx);
1611         }
1612 #endif
1613
1614 #if IS_ENABLED(CONFIG_SWIOTLB) && IS_ENABLED(CONFIG_X86)
1615         if (swiotlb_nr_tbl()) {
1616                 return ttm_dma_populate((void *)ttm, dev, ctx);
1617         }
1618 #endif
1619
1620         r = ttm_pool_populate(ttm, ctx);
1621         if (r) {
1622                 return r;
1623         }
1624
1625         for (i = 0; i < ttm->num_pages; i++) {
1626                 dma_addr_t addr;
1627
1628                 addr = dma_map_page(dev, ttm->pages[i], 0, PAGE_SIZE,
1629                                     DMA_BIDIRECTIONAL);
1630
1631                 if (dma_mapping_error(dev, addr)) {
1632                         while (i--) {
1633                                 dma_unmap_page(dev, ttm_dma->dma_address[i],
1634                                                PAGE_SIZE, DMA_BIDIRECTIONAL);
1635                                 ttm_dma->dma_address[i] = 0;
1636                         }
1637                         ttm_pool_unpopulate(ttm);
1638                         return -EFAULT;
1639                 }
1640
1641                 ttm_dma->dma_address[i] = addr;
1642         }
1643         return 0;
1644 }
1645
1646 static void
1647 nouveau_ttm_tt_unpopulate(struct ttm_tt *ttm)
1648 {
1649         struct ttm_dma_tt *ttm_dma = (void *)ttm;
1650         struct nouveau_drm *drm;
1651         struct device *dev;
1652         unsigned i;
1653         bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG);
1654
1655         if (slave)
1656                 return;
1657
1658         drm = nouveau_bdev(ttm->bdev);
1659         dev = drm->dev->dev;
1660
1661 #if IS_ENABLED(CONFIG_AGP)
1662         if (drm->agp.bridge) {
1663                 ttm_agp_tt_unpopulate(ttm);
1664                 return;
1665         }
1666 #endif
1667
1668 #if IS_ENABLED(CONFIG_SWIOTLB) && IS_ENABLED(CONFIG_X86)
1669         if (swiotlb_nr_tbl()) {
1670                 ttm_dma_unpopulate((void *)ttm, dev);
1671                 return;
1672         }
1673 #endif
1674
1675         for (i = 0; i < ttm->num_pages; i++) {
1676                 if (ttm_dma->dma_address[i]) {
1677                         dma_unmap_page(dev, ttm_dma->dma_address[i], PAGE_SIZE,
1678                                        DMA_BIDIRECTIONAL);
1679                 }
1680         }
1681
1682         ttm_pool_unpopulate(ttm);
1683 }
1684
1685 void
1686 nouveau_bo_fence(struct nouveau_bo *nvbo, struct nouveau_fence *fence, bool exclusive)
1687 {
1688         struct dma_resv *resv = nvbo->bo.base.resv;
1689
1690         if (exclusive)
1691                 dma_resv_add_excl_fence(resv, &fence->base);
1692         else if (fence)
1693                 dma_resv_add_shared_fence(resv, &fence->base);
1694 }
1695
1696 struct ttm_bo_driver nouveau_bo_driver = {
1697         .ttm_tt_create = &nouveau_ttm_tt_create,
1698         .ttm_tt_populate = &nouveau_ttm_tt_populate,
1699         .ttm_tt_unpopulate = &nouveau_ttm_tt_unpopulate,
1700         .invalidate_caches = nouveau_bo_invalidate_caches,
1701         .init_mem_type = nouveau_bo_init_mem_type,
1702         .eviction_valuable = ttm_bo_eviction_valuable,
1703         .evict_flags = nouveau_bo_evict_flags,
1704         .move_notify = nouveau_bo_move_ntfy,
1705         .move = nouveau_bo_move,
1706         .verify_access = nouveau_bo_verify_access,
1707         .fault_reserve_notify = &nouveau_ttm_fault_reserve_notify,
1708         .io_mem_reserve = &nouveau_ttm_io_mem_reserve,
1709         .io_mem_free = &nouveau_ttm_io_mem_free,
1710 };