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