drivers/gpu/drm/nouveau/nouveau_ttm.c

   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 "nouveau_drm.h"
  28 #include "nouveau_ttm.h"
  29 #include "nouveau_gem.h"
  30
  31 #include "drm_legacy.h"
  32 static int
  33 nouveau_vram_manager_init(struct ttm_mem_type_manager *man, unsigned long psize)
  34 {
  35         struct nouveau_drm *drm = nouveau_bdev(man->bdev);
  36         struct nvkm_fb *pfb = nvxx_fb(&drm->device);
  37         man->priv = pfb;
  38         return 0;
  39 }
  40
  41 static int
  42 nouveau_vram_manager_fini(struct ttm_mem_type_manager *man)
  43 {
  44         man->priv = NULL;
  45         return 0;
  46 }
  47
  48 static inline void
  49 nvkm_mem_node_cleanup(struct nvkm_mem *node)
  50 {
  51         if (node->vma[0].node) {
  52                 nvkm_vm_unmap(&node->vma[0]);
  53                 nvkm_vm_put(&node->vma[0]);
  54         }
  55
  56         if (node->vma[1].node) {
  57                 nvkm_vm_unmap(&node->vma[1]);
  58                 nvkm_vm_put(&node->vma[1]);
  59         }
  60 }
  61
  62 static void
  63 nouveau_vram_manager_del(struct ttm_mem_type_manager *man,
  64                          struct ttm_mem_reg *mem)
  65 {
  66         struct nouveau_drm *drm = nouveau_bdev(man->bdev);
  67         struct nvkm_fb *pfb = nvxx_fb(&drm->device);
  68         nvkm_mem_node_cleanup(mem->mm_node);
  69         pfb->ram->put(pfb, (struct nvkm_mem **)&mem->mm_node);
  70 }
  71
  72 static int
  73 nouveau_vram_manager_new(struct ttm_mem_type_manager *man,
  74                          struct ttm_buffer_object *bo,
  75                          const struct ttm_place *place,
  76                          struct ttm_mem_reg *mem)
  77 {
  78         struct nouveau_drm *drm = nouveau_bdev(man->bdev);
  79         struct nvkm_fb *pfb = nvxx_fb(&drm->device);
  80         struct nouveau_bo *nvbo = nouveau_bo(bo);
  81         struct nvkm_mem *node;
  82         u32 size_nc = 0;
  83         int ret;
  84
  85         if (nvbo->tile_flags & NOUVEAU_GEM_TILE_NONCONTIG)
  86                 size_nc = 1 << nvbo->page_shift;
  87
  88         ret = pfb->ram->get(pfb, mem->num_pages << PAGE_SHIFT,
  89                            mem->page_alignment << PAGE_SHIFT, size_nc,
  90                            (nvbo->tile_flags >> 8) & 0x3ff, &node);
  91         if (ret) {
  92                 mem->mm_node = NULL;
  93                 return (ret == -ENOSPC) ? 0 : ret;
  94         }
  95
  96         node->page_shift = nvbo->page_shift;
  97
  98         mem->mm_node = node;
  99         mem->start   = node->offset >> PAGE_SHIFT;
 100         return 0;
 101 }
 102
 103 static void
 104 nouveau_vram_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
 105 {
 106         struct nvkm_fb *pfb = man->priv;
 107         struct nvkm_mm *mm = &pfb->vram;
 108         struct nvkm_mm_node *r;
 109         u32 total = 0, free = 0;
 110
 111         mutex_lock(&nv_subdev(pfb)->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(&nv_subdev(pfb)->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         nvkm_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                          const struct ttm_place *place,
 162                          struct ttm_mem_reg *mem)
 163 {
 164         struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
 165         struct nouveau_bo *nvbo = nouveau_bo(bo);
 166         struct nvkm_mem *node;
 167
 168         node = kzalloc(sizeof(*node), GFP_KERNEL);
 169         if (!node)
 170                 return -ENOMEM;
 171
 172         node->page_shift = 12;
 173
 174         switch (drm->device.info.family) {
 175         case NV_DEVICE_INFO_V0_TESLA:
 176                 if (drm->device.info.chipset != 0x50)
 177                         node->memtype = (nvbo->tile_flags & 0x7f00) >> 8;
 178                 break;
 179         case NV_DEVICE_INFO_V0_FERMI:
 180         case NV_DEVICE_INFO_V0_KEPLER:
 181                 node->memtype = (nvbo->tile_flags & 0xff00) >> 8;
 182                 break;
 183         default:
 184                 break;
 185         }
 186
 187         mem->mm_node = node;
 188         mem->start   = 0;
 189         return 0;
 190 }
 191
 192 static void
 193 nouveau_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
 194 {
 195 }
 196
 197 const struct ttm_mem_type_manager_func nouveau_gart_manager = {
 198         nouveau_gart_manager_init,
 199         nouveau_gart_manager_fini,
 200         nouveau_gart_manager_new,
 201         nouveau_gart_manager_del,
 202         nouveau_gart_manager_debug
 203 };
 204
 205 /*XXX*/
 206 #include <subdev/mmu/nv04.h>
 207 static int
 208 nv04_gart_manager_init(struct ttm_mem_type_manager *man, unsigned long psize)
 209 {
 210         struct nouveau_drm *drm = nouveau_bdev(man->bdev);
 211         struct nvkm_mmu *mmu = nvxx_mmu(&drm->device);
 212         struct nv04_mmu_priv *priv = (void *)mmu;
 213         struct nvkm_vm *vm = NULL;
 214         nvkm_vm_ref(priv->vm, &vm, NULL);
 215         man->priv = vm;
 216         return 0;
 217 }
 218
 219 static int
 220 nv04_gart_manager_fini(struct ttm_mem_type_manager *man)
 221 {
 222         struct nvkm_vm *vm = man->priv;
 223         nvkm_vm_ref(NULL, &vm, NULL);
 224         man->priv = NULL;
 225         return 0;
 226 }
 227
 228 static void
 229 nv04_gart_manager_del(struct ttm_mem_type_manager *man, struct ttm_mem_reg *mem)
 230 {
 231         struct nvkm_mem *node = mem->mm_node;
 232         if (node->vma[0].node)
 233                 nvkm_vm_put(&node->vma[0]);
 234         kfree(mem->mm_node);
 235         mem->mm_node = NULL;
 236 }
 237
 238 static int
 239 nv04_gart_manager_new(struct ttm_mem_type_manager *man,
 240                       struct ttm_buffer_object *bo,
 241                       const struct ttm_place *place,
 242                       struct ttm_mem_reg *mem)
 243 {
 244         struct nvkm_mem *node;
 245         int ret;
 246
 247         node = kzalloc(sizeof(*node), GFP_KERNEL);
 248         if (!node)
 249                 return -ENOMEM;
 250
 251         node->page_shift = 12;
 252
 253         ret = nvkm_vm_get(man->priv, mem->num_pages << 12, node->page_shift,
 254                           NV_MEM_ACCESS_RW, &node->vma[0]);
 255         if (ret) {
 256                 kfree(node);
 257                 return ret;
 258         }
 259
 260         mem->mm_node = node;
 261         mem->start   = node->vma[0].offset >> PAGE_SHIFT;
 262         return 0;
 263 }
 264
 265 static void
 266 nv04_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
 267 {
 268 }
 269
 270 const struct ttm_mem_type_manager_func nv04_gart_manager = {
 271         nv04_gart_manager_init,
 272         nv04_gart_manager_fini,
 273         nv04_gart_manager_new,
 274         nv04_gart_manager_del,
 275         nv04_gart_manager_debug
 276 };
 277
 278 int
 279 nouveau_ttm_mmap(struct file *filp, struct vm_area_struct *vma)
 280 {
 281         struct drm_file *file_priv = filp->private_data;
 282         struct nouveau_drm *drm = nouveau_drm(file_priv->minor->dev);
 283
 284         if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET))
 285                 return drm_legacy_mmap(filp, vma);
 286
 287         return ttm_bo_mmap(filp, vma, &drm->ttm.bdev);
 288 }
 289
 290 static int
 291 nouveau_ttm_mem_global_init(struct drm_global_reference *ref)
 292 {
 293         return ttm_mem_global_init(ref->object);
 294 }
 295
 296 static void
 297 nouveau_ttm_mem_global_release(struct drm_global_reference *ref)
 298 {
 299         ttm_mem_global_release(ref->object);
 300 }
 301
 302 int
 303 nouveau_ttm_global_init(struct nouveau_drm *drm)
 304 {
 305         struct drm_global_reference *global_ref;
 306         int ret;
 307
 308         global_ref = &drm->ttm.mem_global_ref;
 309         global_ref->global_type = DRM_GLOBAL_TTM_MEM;
 310         global_ref->size = sizeof(struct ttm_mem_global);
 311         global_ref->init = &nouveau_ttm_mem_global_init;
 312         global_ref->release = &nouveau_ttm_mem_global_release;
 313
 314         ret = drm_global_item_ref(global_ref);
 315         if (unlikely(ret != 0)) {
 316                 DRM_ERROR("Failed setting up TTM memory accounting\n");
 317                 drm->ttm.mem_global_ref.release = NULL;
 318                 return ret;
 319         }
 320
 321         drm->ttm.bo_global_ref.mem_glob = global_ref->object;
 322         global_ref = &drm->ttm.bo_global_ref.ref;
 323         global_ref->global_type = DRM_GLOBAL_TTM_BO;
 324         global_ref->size = sizeof(struct ttm_bo_global);
 325         global_ref->init = &ttm_bo_global_init;
 326         global_ref->release = &ttm_bo_global_release;
 327
 328         ret = drm_global_item_ref(global_ref);
 329         if (unlikely(ret != 0)) {
 330                 DRM_ERROR("Failed setting up TTM BO subsystem\n");
 331                 drm_global_item_unref(&drm->ttm.mem_global_ref);
 332                 drm->ttm.mem_global_ref.release = NULL;
 333                 return ret;
 334         }
 335
 336         return 0;
 337 }
 338
 339 void
 340 nouveau_ttm_global_release(struct nouveau_drm *drm)
 341 {
 342         if (drm->ttm.mem_global_ref.release == NULL)
 343                 return;
 344
 345         drm_global_item_unref(&drm->ttm.bo_global_ref.ref);
 346         drm_global_item_unref(&drm->ttm.mem_global_ref);
 347         drm->ttm.mem_global_ref.release = NULL;
 348 }
 349
 350 int
 351 nouveau_ttm_init(struct nouveau_drm *drm)
 352 {
 353         struct drm_device *dev = drm->dev;
 354         u32 bits;
 355         int ret;
 356
 357         bits = nvxx_mmu(&drm->device)->dma_bits;
 358         if (nv_device_is_pci(nvxx_device(&drm->device))) {
 359                 if (drm->agp.stat == ENABLED ||
 360                      !pci_dma_supported(dev->pdev, DMA_BIT_MASK(bits)))
 361                         bits = 32;
 362
 363                 ret = pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(bits));
 364                 if (ret)
 365                         return ret;
 366
 367                 ret = pci_set_consistent_dma_mask(dev->pdev,
 368                                                   DMA_BIT_MASK(bits));
 369                 if (ret)
 370                         pci_set_consistent_dma_mask(dev->pdev,
 371                                                     DMA_BIT_MASK(32));
 372         }
 373
 374         ret = nouveau_ttm_global_init(drm);
 375         if (ret)
 376                 return ret;
 377
 378         ret = ttm_bo_device_init(&drm->ttm.bdev,
 379                                   drm->ttm.bo_global_ref.ref.object,
 380                                   &nouveau_bo_driver,
 381                                   dev->anon_inode->i_mapping,
 382                                   DRM_FILE_PAGE_OFFSET,
 383                                   bits <= 32 ? true : false);
 384         if (ret) {
 385                 NV_ERROR(drm, "error initialising bo driver, %d\n", ret);
 386                 return ret;
 387         }
 388
 389         /* VRAM init */
 390         drm->gem.vram_available = drm->device.info.ram_user;
 391
 392         ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_VRAM,
 393                               drm->gem.vram_available >> PAGE_SHIFT);
 394         if (ret) {
 395                 NV_ERROR(drm, "VRAM mm init failed, %d\n", ret);
 396                 return ret;
 397         }
 398
 399         drm->ttm.mtrr = arch_phys_wc_add(nv_device_resource_start(nvxx_device(&drm->device), 1),
 400                                          nv_device_resource_len(nvxx_device(&drm->device), 1));
 401
 402         /* GART init */
 403         if (drm->agp.stat != ENABLED) {
 404                 drm->gem.gart_available = nvxx_mmu(&drm->device)->limit;
 405         } else {
 406                 drm->gem.gart_available = drm->agp.size;
 407         }
 408
 409         ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_TT,
 410                               drm->gem.gart_available >> PAGE_SHIFT);
 411         if (ret) {
 412                 NV_ERROR(drm, "GART mm init failed, %d\n", ret);
 413                 return ret;
 414         }
 415
 416         NV_INFO(drm, "VRAM: %d MiB\n", (u32)(drm->gem.vram_available >> 20));
 417         NV_INFO(drm, "GART: %d MiB\n", (u32)(drm->gem.gart_available >> 20));
 418         return 0;
 419 }
 420
 421 void
 422 nouveau_ttm_fini(struct nouveau_drm *drm)
 423 {
 424         mutex_lock(&drm->dev->struct_mutex);
 425         ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 426         ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_TT);
 427         mutex_unlock(&drm->dev->struct_mutex);
 428
 429         ttm_bo_device_release(&drm->ttm.bdev);
 430
 431         nouveau_ttm_global_release(drm);
 432
 433         arch_phys_wc_del(drm->ttm.mtrr);
 434         drm->ttm.mtrr = 0;
 435 }