1 /* 2 * Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA, 3 * All Rights Reserved. 4 * Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA, 5 * All Rights Reserved. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * the rights to use, copy, modify, merge, publish, distribute, sub license, 11 * and/or sell copies of the Software, and to permit persons to whom the 12 * Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, 22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 24 * USE OR OTHER DEALINGS IN THE SOFTWARE. 25 */ 26 27 #include <subdev/fb.h> 28 #include <subdev/vm.h> 29 #include <subdev/instmem.h> 30 31 #include "nouveau_drm.h" 32 #include "nouveau_ttm.h" 33 #include "nouveau_gem.h" 34 35 static int 36 nouveau_vram_manager_init(struct ttm_mem_type_manager *man, unsigned long psize) 37 { 38 /* nothing to do */ 39 return 0; 40 } 41 42 static int 43 nouveau_vram_manager_fini(struct ttm_mem_type_manager *man) 44 { 45 /* nothing to do */ 46 return 0; 47 } 48 49 static inline void 50 nouveau_mem_node_cleanup(struct nouveau_mem *node) 51 { 52 if (node->vma[0].node) { 53 nouveau_vm_unmap(&node->vma[0]); 54 nouveau_vm_put(&node->vma[0]); 55 } 56 57 if (node->vma[1].node) { 58 nouveau_vm_unmap(&node->vma[1]); 59 nouveau_vm_put(&node->vma[1]); 60 } 61 } 62 63 static void 64 nouveau_vram_manager_del(struct ttm_mem_type_manager *man, 65 struct ttm_mem_reg *mem) 66 { 67 struct nouveau_drm *drm = nouveau_bdev(man->bdev); 68 struct nouveau_fb *pfb = nouveau_fb(drm->device); 69 nouveau_mem_node_cleanup(mem->mm_node); 70 pfb->ram.put(pfb, (struct nouveau_mem **)&mem->mm_node); 71 } 72 73 static int 74 nouveau_vram_manager_new(struct ttm_mem_type_manager *man, 75 struct ttm_buffer_object *bo, 76 struct ttm_placement *placement, 77 struct ttm_mem_reg *mem) 78 { 79 struct nouveau_drm *drm = nouveau_bdev(man->bdev); 80 struct nouveau_fb *pfb = nouveau_fb(drm->device); 81 struct nouveau_bo *nvbo = nouveau_bo(bo); 82 struct nouveau_mem *node; 83 u32 size_nc = 0; 84 int ret; 85 86 if (nvbo->tile_flags & NOUVEAU_GEM_TILE_NONCONTIG) 87 size_nc = 1 << nvbo->page_shift; 88 89 ret = pfb->ram.get(pfb, mem->num_pages << PAGE_SHIFT, 90 mem->page_alignment << PAGE_SHIFT, size_nc, 91 (nvbo->tile_flags >> 8) & 0x3ff, &node); 92 if (ret) { 93 mem->mm_node = NULL; 94 return (ret == -ENOSPC) ? 0 : ret; 95 } 96 97 node->page_shift = nvbo->page_shift; 98 99 mem->mm_node = node; 100 mem->start = node->offset >> PAGE_SHIFT; 101 return 0; 102 } 103 104 static void 105 nouveau_vram_manager_debug(struct ttm_mem_type_manager *man, const char *prefix) 106 { 107 struct nouveau_mm *mm = man->priv; 108 struct nouveau_mm_node *r; 109 u32 total = 0, free = 0; 110 111 mutex_lock(&mm->mutex); 112 list_for_each_entry(r, &mm->nodes, nl_entry) { 113 printk(KERN_DEBUG "%s %d: 0x%010llx 0x%010llx\n", 114 prefix, r->type, ((u64)r->offset << 12), 115 (((u64)r->offset + r->length) << 12)); 116 117 total += r->length; 118 if (!r->type) 119 free += r->length; 120 } 121 mutex_unlock(&mm->mutex); 122 123 printk(KERN_DEBUG "%s total: 0x%010llx free: 0x%010llx\n", 124 prefix, (u64)total << 12, (u64)free << 12); 125 printk(KERN_DEBUG "%s block: 0x%08x\n", 126 prefix, mm->block_size << 12); 127 } 128 129 const struct ttm_mem_type_manager_func nouveau_vram_manager = { 130 nouveau_vram_manager_init, 131 nouveau_vram_manager_fini, 132 nouveau_vram_manager_new, 133 nouveau_vram_manager_del, 134 nouveau_vram_manager_debug 135 }; 136 137 static int 138 nouveau_gart_manager_init(struct ttm_mem_type_manager *man, unsigned long psize) 139 { 140 return 0; 141 } 142 143 static int 144 nouveau_gart_manager_fini(struct ttm_mem_type_manager *man) 145 { 146 return 0; 147 } 148 149 static void 150 nouveau_gart_manager_del(struct ttm_mem_type_manager *man, 151 struct ttm_mem_reg *mem) 152 { 153 nouveau_mem_node_cleanup(mem->mm_node); 154 kfree(mem->mm_node); 155 mem->mm_node = NULL; 156 } 157 158 static int 159 nouveau_gart_manager_new(struct ttm_mem_type_manager *man, 160 struct ttm_buffer_object *bo, 161 struct ttm_placement *placement, 162 struct ttm_mem_reg *mem) 163 { 164 struct nouveau_mem *node; 165 166 if (unlikely((mem->num_pages << PAGE_SHIFT) >= 512 * 1024 * 1024)) 167 return -ENOMEM; 168 169 node = kzalloc(sizeof(*node), GFP_KERNEL); 170 if (!node) 171 return -ENOMEM; 172 node->page_shift = 12; 173 174 mem->mm_node = node; 175 mem->start = 0; 176 return 0; 177 } 178 179 static void 180 nouveau_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix) 181 { 182 } 183 184 const struct ttm_mem_type_manager_func nouveau_gart_manager = { 185 nouveau_gart_manager_init, 186 nouveau_gart_manager_fini, 187 nouveau_gart_manager_new, 188 nouveau_gart_manager_del, 189 nouveau_gart_manager_debug 190 }; 191 192 #include <core/subdev/vm/nv04.h> 193 static int 194 nv04_gart_manager_init(struct ttm_mem_type_manager *man, unsigned long psize) 195 { 196 struct nouveau_drm *drm = nouveau_bdev(man->bdev); 197 struct nouveau_vmmgr *vmm = nouveau_vmmgr(drm->device); 198 struct nv04_vmmgr_priv *priv = (void *)vmm; 199 struct nouveau_vm *vm = NULL; 200 nouveau_vm_ref(priv->vm, &vm, NULL); 201 man->priv = vm; 202 return 0; 203 } 204 205 static int 206 nv04_gart_manager_fini(struct ttm_mem_type_manager *man) 207 { 208 struct nouveau_vm *vm = man->priv; 209 nouveau_vm_ref(NULL, &vm, NULL); 210 man->priv = NULL; 211 return 0; 212 } 213 214 static void 215 nv04_gart_manager_del(struct ttm_mem_type_manager *man, struct ttm_mem_reg *mem) 216 { 217 struct nouveau_mem *node = mem->mm_node; 218 if (node->vma[0].node) 219 nouveau_vm_put(&node->vma[0]); 220 kfree(mem->mm_node); 221 mem->mm_node = NULL; 222 } 223 224 static int 225 nv04_gart_manager_new(struct ttm_mem_type_manager *man, 226 struct ttm_buffer_object *bo, 227 struct ttm_placement *placement, 228 struct ttm_mem_reg *mem) 229 { 230 struct nouveau_mem *node; 231 int ret; 232 233 node = kzalloc(sizeof(*node), GFP_KERNEL); 234 if (!node) 235 return -ENOMEM; 236 237 node->page_shift = 12; 238 239 ret = nouveau_vm_get(man->priv, mem->num_pages << 12, node->page_shift, 240 NV_MEM_ACCESS_RW, &node->vma[0]); 241 if (ret) { 242 kfree(node); 243 return ret; 244 } 245 246 mem->mm_node = node; 247 mem->start = node->vma[0].offset >> PAGE_SHIFT; 248 return 0; 249 } 250 251 static void 252 nv04_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix) 253 { 254 } 255 256 const struct ttm_mem_type_manager_func nv04_gart_manager = { 257 nv04_gart_manager_init, 258 nv04_gart_manager_fini, 259 nv04_gart_manager_new, 260 nv04_gart_manager_del, 261 nv04_gart_manager_debug 262 }; 263 264 int 265 nouveau_ttm_mmap(struct file *filp, struct vm_area_struct *vma) 266 { 267 struct drm_file *file_priv = filp->private_data; 268 struct nouveau_drm *drm = nouveau_drm(file_priv->minor->dev); 269 270 if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET)) 271 return drm_mmap(filp, vma); 272 273 return ttm_bo_mmap(filp, vma, &drm->ttm.bdev); 274 } 275 276 static int 277 nouveau_ttm_mem_global_init(struct drm_global_reference *ref) 278 { 279 return ttm_mem_global_init(ref->object); 280 } 281 282 static void 283 nouveau_ttm_mem_global_release(struct drm_global_reference *ref) 284 { 285 ttm_mem_global_release(ref->object); 286 } 287 288 int 289 nouveau_ttm_global_init(struct nouveau_drm *drm) 290 { 291 struct drm_global_reference *global_ref; 292 int ret; 293 294 global_ref = &drm->ttm.mem_global_ref; 295 global_ref->global_type = DRM_GLOBAL_TTM_MEM; 296 global_ref->size = sizeof(struct ttm_mem_global); 297 global_ref->init = &nouveau_ttm_mem_global_init; 298 global_ref->release = &nouveau_ttm_mem_global_release; 299 300 ret = drm_global_item_ref(global_ref); 301 if (unlikely(ret != 0)) { 302 DRM_ERROR("Failed setting up TTM memory accounting\n"); 303 drm->ttm.mem_global_ref.release = NULL; 304 return ret; 305 } 306 307 drm->ttm.bo_global_ref.mem_glob = global_ref->object; 308 global_ref = &drm->ttm.bo_global_ref.ref; 309 global_ref->global_type = DRM_GLOBAL_TTM_BO; 310 global_ref->size = sizeof(struct ttm_bo_global); 311 global_ref->init = &ttm_bo_global_init; 312 global_ref->release = &ttm_bo_global_release; 313 314 ret = drm_global_item_ref(global_ref); 315 if (unlikely(ret != 0)) { 316 DRM_ERROR("Failed setting up TTM BO subsystem\n"); 317 drm_global_item_unref(&drm->ttm.mem_global_ref); 318 drm->ttm.mem_global_ref.release = NULL; 319 return ret; 320 } 321 322 return 0; 323 } 324 325 void 326 nouveau_ttm_global_release(struct nouveau_drm *drm) 327 { 328 if (drm->ttm.mem_global_ref.release == NULL) 329 return; 330 331 drm_global_item_unref(&drm->ttm.bo_global_ref.ref); 332 drm_global_item_unref(&drm->ttm.mem_global_ref); 333 drm->ttm.mem_global_ref.release = NULL; 334 } 335 336 int 337 nouveau_ttm_init(struct nouveau_drm *drm) 338 { 339 struct drm_device *dev = drm->dev; 340 u32 bits; 341 int ret; 342 343 bits = nouveau_vmmgr(drm->device)->dma_bits; 344 if ( drm->agp.stat == ENABLED || 345 !pci_dma_supported(dev->pdev, DMA_BIT_MASK(bits))) 346 bits = 32; 347 348 ret = pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(bits)); 349 if (ret) 350 return ret; 351 352 ret = pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(bits)); 353 if (ret) 354 pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(32)); 355 356 ret = nouveau_ttm_global_init(drm); 357 if (ret) 358 return ret; 359 360 ret = ttm_bo_device_init(&drm->ttm.bdev, 361 drm->ttm.bo_global_ref.ref.object, 362 &nouveau_bo_driver, DRM_FILE_PAGE_OFFSET, 363 bits <= 32 ? true : false); 364 if (ret) { 365 NV_ERROR(drm, "error initialising bo driver, %d\n", ret); 366 return ret; 367 } 368 369 /* VRAM init */ 370 drm->gem.vram_available = nouveau_fb(drm->device)->ram.size; 371 drm->gem.vram_available -= nouveau_instmem(drm->device)->reserved; 372 373 ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_VRAM, 374 drm->gem.vram_available >> PAGE_SHIFT); 375 if (ret) { 376 NV_ERROR(drm, "VRAM mm init failed, %d\n", ret); 377 return ret; 378 } 379 380 drm->ttm.mtrr = drm_mtrr_add(pci_resource_start(dev->pdev, 1), 381 pci_resource_len(dev->pdev, 1), 382 DRM_MTRR_WC); 383 384 /* GART init */ 385 if (drm->agp.stat != ENABLED) { 386 drm->gem.gart_available = nouveau_vmmgr(drm->device)->limit; 387 if (drm->gem.gart_available > 512 * 1024 * 1024) 388 drm->gem.gart_available = 512 * 1024 * 1024; 389 } else { 390 drm->gem.gart_available = drm->agp.size; 391 } 392 393 ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_TT, 394 drm->gem.gart_available >> PAGE_SHIFT); 395 if (ret) { 396 NV_ERROR(drm, "GART mm init failed, %d\n", ret); 397 return ret; 398 } 399 400 NV_INFO(drm, "VRAM: %d MiB\n", (u32)(drm->gem.vram_available >> 20)); 401 NV_INFO(drm, "GART: %d MiB\n", (u32)(drm->gem.gart_available >> 20)); 402 return 0; 403 } 404 405 void 406 nouveau_ttm_fini(struct nouveau_drm *drm) 407 { 408 mutex_lock(&drm->dev->struct_mutex); 409 ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_VRAM); 410 ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_TT); 411 mutex_unlock(&drm->dev->struct_mutex); 412 413 ttm_bo_device_release(&drm->ttm.bdev); 414 415 nouveau_ttm_global_release(drm); 416 417 if (drm->ttm.mtrr >= 0) { 418 drm_mtrr_del(drm->ttm.mtrr, 419 pci_resource_start(drm->dev->pdev, 1), 420 pci_resource_len(drm->dev->pdev, 1), DRM_MTRR_WC); 421 drm->ttm.mtrr = -1; 422 } 423 } 424