kernel/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 (drm->device.info.ram_size == 0)
  86                 return -ENOMEM;
  87
  88         if (nvbo->tile_flags & NOUVEAU_GEM_TILE_NONCONTIG)
  89                 size_nc = 1 << nvbo->page_shift;
  90
  91         ret = pfb->ram->get(pfb, mem->num_pages << PAGE_SHIFT,
  92                            mem->page_alignment << PAGE_SHIFT, size_nc,
  93                            (nvbo->tile_flags >> 8) & 0x3ff, &node);
  94         if (ret) {
  95                 mem->mm_node = NULL;
  96                 return (ret == -ENOSPC) ? 0 : ret;
  97         }
  98
  99         node->page_shift = nvbo->page_shift;
 100
 101         mem->mm_node = node;
 102         mem->start   = node->offset >> PAGE_SHIFT;
 103         return 0;
 104 }
 105
 106 static void
 107 nouveau_vram_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
 108 {
 109         struct nvkm_fb *pfb = man->priv;
 110         struct nvkm_mm *mm = &pfb->vram;
 111         struct nvkm_mm_node *r;
 112         u32 total = 0, free = 0;
 113
 114         mutex_lock(&nv_subdev(pfb)->mutex);
 115         list_for_each_entry(r, &mm->nodes, nl_entry) {
 116                 printk(KERN_DEBUG "%s %d: 0x%010llx 0x%010llx\n",
 117                        prefix, r->type, ((u64)r->offset << 12),
 118                        (((u64)r->offset + r->length) << 12));
 119
 120                 total += r->length;
 121                 if (!r->type)
 122                         free += r->length;
 123         }
 124         mutex_unlock(&nv_subdev(pfb)->mutex);
 125
 126         printk(KERN_DEBUG "%s  total: 0x%010llx free: 0x%010llx\n",
 127                prefix, (u64)total << 12, (u64)free << 12);
 128         printk(KERN_DEBUG "%s  block: 0x%08x\n",
 129                prefix, mm->block_size << 12);
 130 }
 131
 132 const struct ttm_mem_type_manager_func nouveau_vram_manager = {
 133         nouveau_vram_manager_init,
 134         nouveau_vram_manager_fini,
 135         nouveau_vram_manager_new,
 136         nouveau_vram_manager_del,
 137         nouveau_vram_manager_debug
 138 };
 139
 140 static int
 141 nouveau_gart_manager_init(struct ttm_mem_type_manager *man, unsigned long psize)
 142 {
 143         return 0;
 144 }
 145
 146 static int
 147 nouveau_gart_manager_fini(struct ttm_mem_type_manager *man)
 148 {
 149         return 0;
 150 }
 151
 152 static void
 153 nouveau_gart_manager_del(struct ttm_mem_type_manager *man,
 154                          struct ttm_mem_reg *mem)
 155 {
 156         nvkm_mem_node_cleanup(mem->mm_node);
 157         kfree(mem->mm_node);
 158         mem->mm_node = NULL;
 159 }
 160
 161 static int
 162 nouveau_gart_manager_new(struct ttm_mem_type_manager *man,
 163                          struct ttm_buffer_object *bo,
 164                          const struct ttm_place *place,
 165                          struct ttm_mem_reg *mem)
 166 {
 167         struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
 168         struct nouveau_bo *nvbo = nouveau_bo(bo);
 169         struct nvkm_mem *node;
 170
 171         node = kzalloc(sizeof(*node), GFP_KERNEL);
 172         if (!node)
 173                 return -ENOMEM;
 174
 175         node->page_shift = 12;
 176
 177         switch (drm->device.info.family) {
 178         case NV_DEVICE_INFO_V0_TESLA:
 179                 if (drm->device.info.chipset != 0x50)
 180                         node->memtype = (nvbo->tile_flags & 0x7f00) >> 8;
 181                 break;
 182         case NV_DEVICE_INFO_V0_FERMI:
 183         case NV_DEVICE_INFO_V0_KEPLER:
 184                 node->memtype = (nvbo->tile_flags & 0xff00) >> 8;
 185                 break;
 186         default:
 187                 break;
 188         }
 189
 190         mem->mm_node = node;
 191         mem->start   = 0;
 192         return 0;
 193 }
 194
 195 static void
 196 nouveau_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
 197 {
 198 }
 199
 200 const struct ttm_mem_type_manager_func nouveau_gart_manager = {
 201         nouveau_gart_manager_init,
 202         nouveau_gart_manager_fini,
 203         nouveau_gart_manager_new,
 204         nouveau_gart_manager_del,
 205         nouveau_gart_manager_debug
 206 };
 207
 208 /*XXX*/
 209 #include <subdev/mmu/nv04.h>
 210 static int
 211 nv04_gart_manager_init(struct ttm_mem_type_manager *man, unsigned long psize)
 212 {
 213         struct nouveau_drm *drm = nouveau_bdev(man->bdev);
 214         struct nvkm_mmu *mmu = nvxx_mmu(&drm->device);
 215         struct nv04_mmu_priv *priv = (void *)mmu;
 216         struct nvkm_vm *vm = NULL;
 217         nvkm_vm_ref(priv->vm, &vm, NULL);
 218         man->priv = vm;
 219         return 0;
 220 }
 221
 222 static int
 223 nv04_gart_manager_fini(struct ttm_mem_type_manager *man)
 224 {
 225         struct nvkm_vm *vm = man->priv;
 226         nvkm_vm_ref(NULL, &vm, NULL);
 227         man->priv = NULL;
 228         return 0;
 229 }
 230
 231 static void
 232 nv04_gart_manager_del(struct ttm_mem_type_manager *man, struct ttm_mem_reg *mem)
 233 {
 234         struct nvkm_mem *node = mem->mm_node;
 235         if (node->vma[0].node)
 236                 nvkm_vm_put(&node->vma[0]);
 237         kfree(mem->mm_node);
 238         mem->mm_node = NULL;
 239 }
 240
 241 static int
 242 nv04_gart_manager_new(struct ttm_mem_type_manager *man,
 243                       struct ttm_buffer_object *bo,
 244                       const struct ttm_place *place,
 245                       struct ttm_mem_reg *mem)
 246 {
 247         struct nvkm_mem *node;
 248         int ret;
 249
 250         node = kzalloc(sizeof(*node), GFP_KERNEL);
 251         if (!node)
 252                 return -ENOMEM;
 253
 254         node->page_shift = 12;
 255
 256         ret = nvkm_vm_get(man->priv, mem->num_pages << 12, node->page_shift,
 257                           NV_MEM_ACCESS_RW, &node->vma[0]);
 258         if (ret) {
 259                 kfree(node);
 260                 return ret;
 261         }
 262
 263         mem->mm_node = node;
 264         mem->start   = node->vma[0].offset >> PAGE_SHIFT;
 265         return 0;
 266 }
 267
 268 static void
 269 nv04_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
 270 {
 271 }
 272
 273 const struct ttm_mem_type_manager_func nv04_gart_manager = {
 274         nv04_gart_manager_init,
 275         nv04_gart_manager_fini,
 276         nv04_gart_manager_new,
 277         nv04_gart_manager_del,
 278         nv04_gart_manager_debug
 279 };
 280
 281 int
 282 nouveau_ttm_mmap(struct file *filp, struct vm_area_struct *vma)
 283 {
 284         struct drm_file *file_priv = filp->private_data;
 285         struct nouveau_drm *drm = nouveau_drm(file_priv->minor->dev);
 286
 287         if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET))
 288                 return drm_legacy_mmap(filp, vma);
 289
 290         return ttm_bo_mmap(filp, vma, &drm->ttm.bdev);
 291 }
 292
 293 static int
 294 nouveau_ttm_mem_global_init(struct drm_global_reference *ref)
 295 {
 296         return ttm_mem_global_init(ref->object);
 297 }
 298
 299 static void
 300 nouveau_ttm_mem_global_release(struct drm_global_reference *ref)
 301 {
 302         ttm_mem_global_release(ref->object);
 303 }
 304
 305 int
 306 nouveau_ttm_global_init(struct nouveau_drm *drm)
 307 {
 308         struct drm_global_reference *global_ref;
 309         int ret;
 310
 311         global_ref = &drm->ttm.mem_global_ref;
 312         global_ref->global_type = DRM_GLOBAL_TTM_MEM;
 313         global_ref->size = sizeof(struct ttm_mem_global);
 314         global_ref->init = &nouveau_ttm_mem_global_init;
 315         global_ref->release = &nouveau_ttm_mem_global_release;
 316
 317         ret = drm_global_item_ref(global_ref);
 318         if (unlikely(ret != 0)) {
 319                 DRM_ERROR("Failed setting up TTM memory accounting\n");
 320                 drm->ttm.mem_global_ref.release = NULL;
 321                 return ret;
 322         }
 323
 324         drm->ttm.bo_global_ref.mem_glob = global_ref->object;
 325         global_ref = &drm->ttm.bo_global_ref.ref;
 326         global_ref->global_type = DRM_GLOBAL_TTM_BO;
 327         global_ref->size = sizeof(struct ttm_bo_global);
 328         global_ref->init = &ttm_bo_global_init;
 329         global_ref->release = &ttm_bo_global_release;
 330
 331         ret = drm_global_item_ref(global_ref);
 332         if (unlikely(ret != 0)) {
 333                 DRM_ERROR("Failed setting up TTM BO subsystem\n");
 334                 drm_global_item_unref(&drm->ttm.mem_global_ref);
 335                 drm->ttm.mem_global_ref.release = NULL;
 336                 return ret;
 337         }
 338
 339         return 0;
 340 }
 341
 342 void
 343 nouveau_ttm_global_release(struct nouveau_drm *drm)
 344 {
 345         if (drm->ttm.mem_global_ref.release == NULL)
 346                 return;
 347
 348         drm_global_item_unref(&drm->ttm.bo_global_ref.ref);
 349         drm_global_item_unref(&drm->ttm.mem_global_ref);
 350         drm->ttm.mem_global_ref.release = NULL;
 351 }
 352
 353 int
 354 nouveau_ttm_init(struct nouveau_drm *drm)
 355 {
 356         struct drm_device *dev = drm->dev;
 357         u32 bits;
 358         int ret;
 359
 360         bits = nvxx_mmu(&drm->device)->dma_bits;
 361         if (nv_device_is_pci(nvxx_device(&drm->device))) {
 362                 if (drm->agp.stat == ENABLED ||
 363                      !pci_dma_supported(dev->pdev, DMA_BIT_MASK(bits)))
 364                         bits = 32;
 365
 366                 ret = pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(bits));
 367                 if (ret)
 368                         return ret;
 369
 370                 ret = pci_set_consistent_dma_mask(dev->pdev,
 371                                                   DMA_BIT_MASK(bits));
 372                 if (ret)
 373                         pci_set_consistent_dma_mask(dev->pdev,
 374                                                     DMA_BIT_MASK(32));
 375         }
 376
 377         ret = nouveau_ttm_global_init(drm);
 378         if (ret)
 379                 return ret;
 380
 381         ret = ttm_bo_device_init(&drm->ttm.bdev,
 382                                   drm->ttm.bo_global_ref.ref.object,
 383                                   &nouveau_bo_driver,
 384                                   dev->anon_inode->i_mapping,
 385                                   DRM_FILE_PAGE_OFFSET,
 386                                   bits <= 32 ? true : false);
 387         if (ret) {
 388                 NV_ERROR(drm, "error initialising bo driver, %d\n", ret);
 389                 return ret;
 390         }
 391
 392         /* VRAM init */
 393         drm->gem.vram_available = drm->device.info.ram_user;
 394
 395         ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_VRAM,
 396                               drm->gem.vram_available >> PAGE_SHIFT);
 397         if (ret) {
 398                 NV_ERROR(drm, "VRAM mm init failed, %d\n", ret);
 399                 return ret;
 400         }
 401
 402         drm->ttm.mtrr = arch_phys_wc_add(nv_device_resource_start(nvxx_device(&drm->device), 1),
 403                                          nv_device_resource_len(nvxx_device(&drm->device), 1));
 404
 405         /* GART init */
 406         if (drm->agp.stat != ENABLED) {
 407                 drm->gem.gart_available = nvxx_mmu(&drm->device)->limit;
 408         } else {
 409                 drm->gem.gart_available = drm->agp.size;
 410         }
 411
 412         ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_TT,
 413                               drm->gem.gart_available >> PAGE_SHIFT);
 414         if (ret) {
 415                 NV_ERROR(drm, "GART mm init failed, %d\n", ret);
 416                 return ret;
 417         }
 418
 419         NV_INFO(drm, "VRAM: %d MiB\n", (u32)(drm->gem.vram_available >> 20));
 420         NV_INFO(drm, "GART: %d MiB\n", (u32)(drm->gem.gart_available >> 20));
 421         return 0;
 422 }
 423
 424 void
 425 nouveau_ttm_fini(struct nouveau_drm *drm)
 426 {
 427         mutex_lock(&drm->dev->struct_mutex);
 428         ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 429         ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_TT);
 430         mutex_unlock(&drm->dev->struct_mutex);
 431
 432         ttm_bo_device_release(&drm->ttm.bdev);
 433
 434         nouveau_ttm_global_release(drm);
 435
 436         arch_phys_wc_del(drm->ttm.mtrr);
 437         drm->ttm.mtrr = 0;
 438 }