| 1 | /* $NetBSD: nouveau_ttm.c,v 1.4 2015/04/03 01:09:42 riastradh Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA, |
| 5 | * All Rights Reserved. |
| 6 | * Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA, |
| 7 | * All Rights Reserved. |
| 8 | * |
| 9 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 10 | * copy of this software and associated documentation files (the "Software"), |
| 11 | * to deal in the Software without restriction, including without limitation |
| 12 | * the rights to use, copy, modify, merge, publish, distribute, sub license, |
| 13 | * and/or sell copies of the Software, and to permit persons to whom the |
| 14 | * Software is furnished to do so, subject to the following conditions: |
| 15 | * |
| 16 | * The above copyright notice and this permission notice (including the |
| 17 | * next paragraph) shall be included in all copies or substantial portions |
| 18 | * of the Software. |
| 19 | * |
| 20 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 21 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 22 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
| 23 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, |
| 24 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| 25 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| 26 | * USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 27 | */ |
| 28 | |
| 29 | #include <sys/cdefs.h> |
| 30 | __KERNEL_RCSID(0, "$NetBSD: nouveau_ttm.c,v 1.4 2015/04/03 01:09:42 riastradh Exp $" ); |
| 31 | |
| 32 | #include <subdev/fb.h> |
| 33 | #include <subdev/vm.h> |
| 34 | #include <subdev/instmem.h> |
| 35 | |
| 36 | #include "nouveau_drm.h" |
| 37 | #include "nouveau_ttm.h" |
| 38 | #include "nouveau_gem.h" |
| 39 | |
| 40 | static int |
| 41 | nouveau_vram_manager_init(struct ttm_mem_type_manager *man, unsigned long psize) |
| 42 | { |
| 43 | struct nouveau_drm *drm = nouveau_bdev(man->bdev); |
| 44 | struct nouveau_fb *pfb = nouveau_fb(drm->device); |
| 45 | man->priv = pfb; |
| 46 | return 0; |
| 47 | } |
| 48 | |
| 49 | static int |
| 50 | nouveau_vram_manager_fini(struct ttm_mem_type_manager *man) |
| 51 | { |
| 52 | man->priv = NULL; |
| 53 | return 0; |
| 54 | } |
| 55 | |
| 56 | static inline void |
| 57 | nouveau_mem_node_cleanup(struct nouveau_mem *node) |
| 58 | { |
| 59 | if (node->vma[0].node) { |
| 60 | nouveau_vm_unmap(&node->vma[0]); |
| 61 | nouveau_vm_put(&node->vma[0]); |
| 62 | } |
| 63 | |
| 64 | if (node->vma[1].node) { |
| 65 | nouveau_vm_unmap(&node->vma[1]); |
| 66 | nouveau_vm_put(&node->vma[1]); |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | static void |
| 71 | nouveau_vram_manager_del(struct ttm_mem_type_manager *man, |
| 72 | struct ttm_mem_reg *mem) |
| 73 | { |
| 74 | struct nouveau_drm *drm = nouveau_bdev(man->bdev); |
| 75 | struct nouveau_fb *pfb = nouveau_fb(drm->device); |
| 76 | nouveau_mem_node_cleanup(mem->mm_node); |
| 77 | pfb->ram->put(pfb, (struct nouveau_mem **)&mem->mm_node); |
| 78 | } |
| 79 | |
| 80 | static int |
| 81 | nouveau_vram_manager_new(struct ttm_mem_type_manager *man, |
| 82 | struct ttm_buffer_object *bo, |
| 83 | struct ttm_placement *placement, |
| 84 | struct ttm_mem_reg *mem) |
| 85 | { |
| 86 | struct nouveau_drm *drm = nouveau_bdev(man->bdev); |
| 87 | struct nouveau_fb *pfb = nouveau_fb(drm->device); |
| 88 | struct nouveau_bo *nvbo = nouveau_bo(bo); |
| 89 | struct nouveau_mem *node; |
| 90 | u32 size_nc = 0; |
| 91 | int ret; |
| 92 | |
| 93 | if (nvbo->tile_flags & NOUVEAU_GEM_TILE_NONCONTIG) |
| 94 | size_nc = 1 << nvbo->page_shift; |
| 95 | |
| 96 | ret = pfb->ram->get(pfb, mem->num_pages << PAGE_SHIFT, |
| 97 | mem->page_alignment << PAGE_SHIFT, size_nc, |
| 98 | (nvbo->tile_flags >> 8) & 0x3ff, &node); |
| 99 | if (ret) { |
| 100 | mem->mm_node = NULL; |
| 101 | return (ret == -ENOSPC) ? 0 : ret; |
| 102 | } |
| 103 | |
| 104 | node->page_shift = nvbo->page_shift; |
| 105 | |
| 106 | mem->mm_node = node; |
| 107 | mem->start = node->offset >> PAGE_SHIFT; |
| 108 | return 0; |
| 109 | } |
| 110 | |
| 111 | static void |
| 112 | nouveau_vram_manager_debug(struct ttm_mem_type_manager *man, const char *prefix) |
| 113 | { |
| 114 | struct nouveau_fb *pfb = man->priv; |
| 115 | struct nouveau_mm *mm = &pfb->vram; |
| 116 | struct nouveau_mm_node *r; |
| 117 | u32 total = 0, free = 0; |
| 118 | |
| 119 | mutex_lock(&nv_subdev(pfb)->mutex); |
| 120 | list_for_each_entry(r, &mm->nodes, nl_entry) { |
| 121 | printk(KERN_DEBUG "%s %d: 0x%010" PRIx64" 0x%010" PRIx64"\n" , |
| 122 | prefix, r->type, ((u64)r->offset << 12), |
| 123 | (((u64)r->offset + r->length) << 12)); |
| 124 | |
| 125 | total += r->length; |
| 126 | if (!r->type) |
| 127 | free += r->length; |
| 128 | } |
| 129 | mutex_unlock(&nv_subdev(pfb)->mutex); |
| 130 | |
| 131 | printk(KERN_DEBUG "%s total: 0x%010" PRIx64" free: 0x%010" PRIx64"\n" , |
| 132 | prefix, (u64)total << 12, (u64)free << 12); |
| 133 | printk(KERN_DEBUG "%s block: 0x%08x\n" , |
| 134 | prefix, mm->block_size << 12); |
| 135 | } |
| 136 | |
| 137 | const struct ttm_mem_type_manager_func nouveau_vram_manager = { |
| 138 | nouveau_vram_manager_init, |
| 139 | nouveau_vram_manager_fini, |
| 140 | nouveau_vram_manager_new, |
| 141 | nouveau_vram_manager_del, |
| 142 | nouveau_vram_manager_debug |
| 143 | }; |
| 144 | |
| 145 | static int |
| 146 | nouveau_gart_manager_init(struct ttm_mem_type_manager *man, unsigned long psize) |
| 147 | { |
| 148 | return 0; |
| 149 | } |
| 150 | |
| 151 | static int |
| 152 | nouveau_gart_manager_fini(struct ttm_mem_type_manager *man) |
| 153 | { |
| 154 | return 0; |
| 155 | } |
| 156 | |
| 157 | static void |
| 158 | nouveau_gart_manager_del(struct ttm_mem_type_manager *man, |
| 159 | struct ttm_mem_reg *mem) |
| 160 | { |
| 161 | nouveau_mem_node_cleanup(mem->mm_node); |
| 162 | kfree(mem->mm_node); |
| 163 | mem->mm_node = NULL; |
| 164 | } |
| 165 | |
| 166 | static int |
| 167 | nouveau_gart_manager_new(struct ttm_mem_type_manager *man, |
| 168 | struct ttm_buffer_object *bo, |
| 169 | struct ttm_placement *placement, |
| 170 | struct ttm_mem_reg *mem) |
| 171 | { |
| 172 | struct nouveau_drm *drm = nouveau_bdev(bo->bdev); |
| 173 | struct nouveau_bo *nvbo = nouveau_bo(bo); |
| 174 | struct nouveau_mem *node; |
| 175 | |
| 176 | node = kzalloc(sizeof(*node), GFP_KERNEL); |
| 177 | if (!node) |
| 178 | return -ENOMEM; |
| 179 | |
| 180 | node->page_shift = 12; |
| 181 | |
| 182 | switch (nv_device(drm->device)->card_type) { |
| 183 | case NV_50: |
| 184 | if (nv_device(drm->device)->chipset != 0x50) |
| 185 | node->memtype = (nvbo->tile_flags & 0x7f00) >> 8; |
| 186 | break; |
| 187 | case NV_C0: |
| 188 | case NV_D0: |
| 189 | case NV_E0: |
| 190 | node->memtype = (nvbo->tile_flags & 0xff00) >> 8; |
| 191 | break; |
| 192 | default: |
| 193 | break; |
| 194 | } |
| 195 | |
| 196 | mem->mm_node = node; |
| 197 | mem->start = 0; |
| 198 | return 0; |
| 199 | } |
| 200 | |
| 201 | static void |
| 202 | nouveau_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix) |
| 203 | { |
| 204 | } |
| 205 | |
| 206 | const struct ttm_mem_type_manager_func nouveau_gart_manager = { |
| 207 | nouveau_gart_manager_init, |
| 208 | nouveau_gart_manager_fini, |
| 209 | nouveau_gart_manager_new, |
| 210 | nouveau_gart_manager_del, |
| 211 | nouveau_gart_manager_debug |
| 212 | }; |
| 213 | |
| 214 | #include <core/subdev/vm/nv04.h> |
| 215 | static int |
| 216 | nv04_gart_manager_init(struct ttm_mem_type_manager *man, unsigned long psize) |
| 217 | { |
| 218 | struct nouveau_drm *drm = nouveau_bdev(man->bdev); |
| 219 | struct nouveau_vmmgr *vmm = nouveau_vmmgr(drm->device); |
| 220 | struct nv04_vmmgr_priv *priv = (void *)vmm; |
| 221 | struct nouveau_vm *vm = NULL; |
| 222 | nouveau_vm_ref(priv->vm, &vm, NULL); |
| 223 | man->priv = vm; |
| 224 | return 0; |
| 225 | } |
| 226 | |
| 227 | static int |
| 228 | nv04_gart_manager_fini(struct ttm_mem_type_manager *man) |
| 229 | { |
| 230 | struct nouveau_vm *vm = man->priv; |
| 231 | nouveau_vm_ref(NULL, &vm, NULL); |
| 232 | man->priv = NULL; |
| 233 | return 0; |
| 234 | } |
| 235 | |
| 236 | static void |
| 237 | nv04_gart_manager_del(struct ttm_mem_type_manager *man, struct ttm_mem_reg *mem) |
| 238 | { |
| 239 | struct nouveau_mem *node = mem->mm_node; |
| 240 | if (node->vma[0].node) |
| 241 | nouveau_vm_put(&node->vma[0]); |
| 242 | kfree(mem->mm_node); |
| 243 | mem->mm_node = NULL; |
| 244 | } |
| 245 | |
| 246 | static int |
| 247 | nv04_gart_manager_new(struct ttm_mem_type_manager *man, |
| 248 | struct ttm_buffer_object *bo, |
| 249 | struct ttm_placement *placement, |
| 250 | struct ttm_mem_reg *mem) |
| 251 | { |
| 252 | struct nouveau_mem *node; |
| 253 | int ret; |
| 254 | |
| 255 | node = kzalloc(sizeof(*node), GFP_KERNEL); |
| 256 | if (!node) |
| 257 | return -ENOMEM; |
| 258 | |
| 259 | node->page_shift = 12; |
| 260 | |
| 261 | ret = nouveau_vm_get(man->priv, mem->num_pages << 12, node->page_shift, |
| 262 | NV_MEM_ACCESS_RW, &node->vma[0]); |
| 263 | if (ret) { |
| 264 | kfree(node); |
| 265 | return ret; |
| 266 | } |
| 267 | |
| 268 | mem->mm_node = node; |
| 269 | mem->start = node->vma[0].offset >> PAGE_SHIFT; |
| 270 | return 0; |
| 271 | } |
| 272 | |
| 273 | static void |
| 274 | nv04_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix) |
| 275 | { |
| 276 | } |
| 277 | |
| 278 | const struct ttm_mem_type_manager_func nv04_gart_manager = { |
| 279 | nv04_gart_manager_init, |
| 280 | nv04_gart_manager_fini, |
| 281 | nv04_gart_manager_new, |
| 282 | nv04_gart_manager_del, |
| 283 | nv04_gart_manager_debug |
| 284 | }; |
| 285 | |
| 286 | #ifdef __NetBSD__ |
| 287 | |
| 288 | int |
| 289 | nouveau_ttm_mmap_object(struct drm_device *dev, off_t offset, size_t size, |
| 290 | vm_prot_t prot, struct uvm_object **uobjp, voff_t *uoffsetp, |
| 291 | struct file *file) |
| 292 | { |
| 293 | struct nouveau_drm *const drm = nouveau_drm(dev); |
| 294 | |
| 295 | KASSERT(0 == (offset & (PAGE_SIZE - 1))); |
| 296 | |
| 297 | if (__predict_false((offset >> PAGE_SHIFT) < DRM_FILE_PAGE_OFFSET)) |
| 298 | return drm_mmap_object(dev, offset, size, prot, uobjp, |
| 299 | uoffsetp, file); |
| 300 | else |
| 301 | return ttm_bo_mmap_object(&drm->ttm.bdev, offset, size, prot, |
| 302 | uobjp, uoffsetp, file); |
| 303 | } |
| 304 | |
| 305 | #else |
| 306 | |
| 307 | int |
| 308 | nouveau_ttm_mmap(struct file *filp, struct vm_area_struct *vma) |
| 309 | { |
| 310 | struct drm_file *file_priv = filp->private_data; |
| 311 | struct nouveau_drm *drm = nouveau_drm(file_priv->minor->dev); |
| 312 | |
| 313 | if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET)) |
| 314 | return drm_mmap(filp, vma); |
| 315 | |
| 316 | return ttm_bo_mmap(filp, vma, &drm->ttm.bdev); |
| 317 | } |
| 318 | |
| 319 | #endif |
| 320 | |
| 321 | static int |
| 322 | nouveau_ttm_mem_global_init(struct drm_global_reference *ref) |
| 323 | { |
| 324 | return ttm_mem_global_init(ref->object); |
| 325 | } |
| 326 | |
| 327 | static void |
| 328 | nouveau_ttm_mem_global_release(struct drm_global_reference *ref) |
| 329 | { |
| 330 | ttm_mem_global_release(ref->object); |
| 331 | } |
| 332 | |
| 333 | int |
| 334 | nouveau_ttm_global_init(struct nouveau_drm *drm) |
| 335 | { |
| 336 | struct drm_global_reference *global_ref; |
| 337 | int ret; |
| 338 | |
| 339 | global_ref = &drm->ttm.mem_global_ref; |
| 340 | global_ref->global_type = DRM_GLOBAL_TTM_MEM; |
| 341 | global_ref->size = sizeof(struct ttm_mem_global); |
| 342 | global_ref->init = &nouveau_ttm_mem_global_init; |
| 343 | global_ref->release = &nouveau_ttm_mem_global_release; |
| 344 | |
| 345 | ret = drm_global_item_ref(global_ref); |
| 346 | if (unlikely(ret != 0)) { |
| 347 | DRM_ERROR("Failed setting up TTM memory accounting\n" ); |
| 348 | drm->ttm.mem_global_ref.release = NULL; |
| 349 | return ret; |
| 350 | } |
| 351 | |
| 352 | drm->ttm.bo_global_ref.mem_glob = global_ref->object; |
| 353 | global_ref = &drm->ttm.bo_global_ref.ref; |
| 354 | global_ref->global_type = DRM_GLOBAL_TTM_BO; |
| 355 | global_ref->size = sizeof(struct ttm_bo_global); |
| 356 | global_ref->init = &ttm_bo_global_init; |
| 357 | global_ref->release = &ttm_bo_global_release; |
| 358 | |
| 359 | ret = drm_global_item_ref(global_ref); |
| 360 | if (unlikely(ret != 0)) { |
| 361 | DRM_ERROR("Failed setting up TTM BO subsystem\n" ); |
| 362 | drm_global_item_unref(&drm->ttm.mem_global_ref); |
| 363 | drm->ttm.mem_global_ref.release = NULL; |
| 364 | return ret; |
| 365 | } |
| 366 | |
| 367 | return 0; |
| 368 | } |
| 369 | |
| 370 | void |
| 371 | nouveau_ttm_global_release(struct nouveau_drm *drm) |
| 372 | { |
| 373 | if (drm->ttm.mem_global_ref.release == NULL) |
| 374 | return; |
| 375 | |
| 376 | drm_global_item_unref(&drm->ttm.bo_global_ref.ref); |
| 377 | drm_global_item_unref(&drm->ttm.mem_global_ref); |
| 378 | drm->ttm.mem_global_ref.release = NULL; |
| 379 | } |
| 380 | |
| 381 | int |
| 382 | nouveau_ttm_init(struct nouveau_drm *drm) |
| 383 | { |
| 384 | struct drm_device *dev = drm->dev; |
| 385 | struct nouveau_device *device = nv_device(drm->device); |
| 386 | u32 bits; |
| 387 | int ret; |
| 388 | |
| 389 | bits = nouveau_vmmgr(drm->device)->dma_bits; |
| 390 | if (nv_device_is_pci(device)) { |
| 391 | if (drm->agp.stat == ENABLED || |
| 392 | !pci_dma_supported(dev->pdev, DMA_BIT_MASK(bits))) |
| 393 | bits = 32; |
| 394 | |
| 395 | #ifdef __NetBSD__ |
| 396 | ret = drm_limit_dma_space(dev, 0, DMA_BIT_MASK(bits)); |
| 397 | if (ret) |
| 398 | return ret; |
| 399 | #else |
| 400 | ret = pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(bits)); |
| 401 | if (ret) |
| 402 | return ret; |
| 403 | |
| 404 | ret = pci_set_consistent_dma_mask(dev->pdev, |
| 405 | DMA_BIT_MASK(bits)); |
| 406 | if (ret) |
| 407 | pci_set_consistent_dma_mask(dev->pdev, |
| 408 | DMA_BIT_MASK(32)); |
| 409 | #endif |
| 410 | } |
| 411 | |
| 412 | ret = nouveau_ttm_global_init(drm); |
| 413 | if (ret) |
| 414 | return ret; |
| 415 | |
| 416 | ret = ttm_bo_device_init(&drm->ttm.bdev, |
| 417 | drm->ttm.bo_global_ref.ref.object, |
| 418 | &nouveau_bo_driver, |
| 419 | #ifdef __NetBSD__ |
| 420 | dev->bst, |
| 421 | dev->dmat, |
| 422 | #else |
| 423 | dev->anon_inode->i_mapping, |
| 424 | #endif |
| 425 | DRM_FILE_PAGE_OFFSET, |
| 426 | bits <= 32 ? true : false); |
| 427 | if (ret) { |
| 428 | NV_ERROR(drm, "error initialising bo driver, %d\n" , ret); |
| 429 | return ret; |
| 430 | } |
| 431 | |
| 432 | /* VRAM init */ |
| 433 | drm->gem.vram_available = nouveau_fb(drm->device)->ram->size; |
| 434 | drm->gem.vram_available -= nouveau_instmem(drm->device)->reserved; |
| 435 | |
| 436 | ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_VRAM, |
| 437 | drm->gem.vram_available >> PAGE_SHIFT); |
| 438 | if (ret) { |
| 439 | NV_ERROR(drm, "VRAM mm init failed, %d\n" , ret); |
| 440 | return ret; |
| 441 | } |
| 442 | |
| 443 | drm->ttm.mtrr = arch_phys_wc_add(nv_device_resource_start(device, 1), |
| 444 | nv_device_resource_len(device, 1)); |
| 445 | |
| 446 | #ifdef __NetBSD__ |
| 447 | pmap_pv_track(nv_device_resource_start(device, 1), |
| 448 | nv_device_resource_len(device, 1)); |
| 449 | #endif |
| 450 | |
| 451 | /* GART init */ |
| 452 | if (drm->agp.stat != ENABLED) { |
| 453 | drm->gem.gart_available = nouveau_vmmgr(drm->device)->limit; |
| 454 | } else { |
| 455 | drm->gem.gart_available = drm->agp.size; |
| 456 | } |
| 457 | |
| 458 | ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_TT, |
| 459 | drm->gem.gart_available >> PAGE_SHIFT); |
| 460 | if (ret) { |
| 461 | NV_ERROR(drm, "GART mm init failed, %d\n" , ret); |
| 462 | return ret; |
| 463 | } |
| 464 | |
| 465 | NV_INFO(drm, "VRAM: %d MiB\n" , (u32)(drm->gem.vram_available >> 20)); |
| 466 | NV_INFO(drm, "GART: %d MiB\n" , (u32)(drm->gem.gart_available >> 20)); |
| 467 | return 0; |
| 468 | } |
| 469 | |
| 470 | void |
| 471 | nouveau_ttm_fini(struct nouveau_drm *drm) |
| 472 | { |
| 473 | mutex_lock(&drm->dev->struct_mutex); |
| 474 | ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_VRAM); |
| 475 | ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_TT); |
| 476 | mutex_unlock(&drm->dev->struct_mutex); |
| 477 | |
| 478 | ttm_bo_device_release(&drm->ttm.bdev); |
| 479 | |
| 480 | nouveau_ttm_global_release(drm); |
| 481 | |
| 482 | arch_phys_wc_del(drm->ttm.mtrr); |
| 483 | drm->ttm.mtrr = 0; |
| 484 | |
| 485 | #ifdef __NetBSD__ |
| 486 | pmap_pv_untrack(nv_device_resource_start(nv_device(drm->device), 1), |
| 487 | nv_device_resource_len(nv_device(drm->device), 1)); |
| 488 | #endif |
| 489 | } |
| 490 | |