nouveau_ttm.c revision 1.4
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
Indexes created Wed Oct 22 06:10:02 GMT 2025