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 <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         struct nouveau_drm *drm = nouveau_bdev(man->bdev);
  39         struct nouveau_fb *pfb = nouveau_fb(drm->device);
  40         man->priv = pfb;
  41         return 0;
  42 }
  43
  44 static int
  45 nouveau_vram_manager_fini(struct ttm_mem_type_manager *man)
  46 {
  47         man->priv = NULL;
  48         return 0;
  49 }
  50
  51 static inline void
  52 nouveau_mem_node_cleanup(struct nouveau_mem *node)
  53 {
  54         if (node->vma[0].node) {
  55                 nouveau_vm_unmap(&node->vma[0]);
  56                 nouveau_vm_put(&node->vma[0]);
  57         }
  58
  59         if (node->vma[1].node) {
  60                 nouveau_vm_unmap(&node->vma[1]);
  61                 nouveau_vm_put(&node->vma[1]);
  62         }
  63 }
  64
  65 static void
  66 nouveau_vram_manager_del(struct ttm_mem_type_manager *man,
  67                          struct ttm_mem_reg *mem)
  68 {
  69         struct nouveau_drm *drm = nouveau_bdev(man->bdev);
  70         struct nouveau_fb *pfb = nouveau_fb(drm->device);
  71         nouveau_mem_node_cleanup(mem->mm_node);
  72         pfb->ram.put(pfb, (struct nouveau_mem **)&mem->mm_node);
  73 }
  74
  75 static int
  76 nouveau_vram_manager_new(struct ttm_mem_type_manager *man,
  77                          struct ttm_buffer_object *bo,
  78                          struct ttm_placement *placement,
  79                          struct ttm_mem_reg *mem)
  80 {
  81         struct nouveau_drm *drm = nouveau_bdev(man->bdev);
  82         struct nouveau_fb *pfb = nouveau_fb(drm->device);
  83         struct nouveau_bo *nvbo = nouveau_bo(bo);
  84         struct nouveau_mem *node;
  85         u32 size_nc = 0;
  86         int ret;
  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 nouveau_fb *pfb = man->priv;
 110         struct nouveau_mm *mm = &pfb->vram;
 111         struct nouveau_mm_node *r;
 112         u32 total = 0, free = 0;
 113
 114         mutex_lock(&mm->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(&mm->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         nouveau_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                          struct ttm_placement *placement,
 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 nouveau_mem *node;
 170
 171         if (unlikely((mem->num_pages << PAGE_SHIFT) >= 512 * 1024 * 1024))
 172                 return -ENOMEM;
 173
 174         node = kzalloc(sizeof(*node), GFP_KERNEL);
 175         if (!node)
 176                 return -ENOMEM;
 177         node->page_shift = 12;
 178
 179         switch (nv_device(drm->device)->card_type) {
 180         case NV_50:
 181                 if (nv_device(drm->device)->chipset != 0x50)
 182                         node->memtype = (nvbo->tile_flags & 0x7f00) >> 8;
 183                 break;
 184         case NV_C0:
 185         case NV_D0:
 186         case NV_E0:
 187                 node->memtype = (nvbo->tile_flags & 0xff00) >> 8;
 188                 break;
 189         default:
 190                 break;
 191         }
 192
 193         mem->mm_node = node;
 194         mem->start   = 0;
 195         return 0;
 196 }
 197
 198 static void
 199 nouveau_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
 200 {
 201 }
 202
 203 const struct ttm_mem_type_manager_func nouveau_gart_manager = {
 204         nouveau_gart_manager_init,
 205         nouveau_gart_manager_fini,
 206         nouveau_gart_manager_new,
 207         nouveau_gart_manager_del,
 208         nouveau_gart_manager_debug
 209 };
 210
 211 #include <core/subdev/vm/nv04.h>
 212 static int
 213 nv04_gart_manager_init(struct ttm_mem_type_manager *man, unsigned long psize)
 214 {
 215         struct nouveau_drm *drm = nouveau_bdev(man->bdev);
 216         struct nouveau_vmmgr *vmm = nouveau_vmmgr(drm->device);
 217         struct nv04_vmmgr_priv *priv = (void *)vmm;
 218         struct nouveau_vm *vm = NULL;
 219         nouveau_vm_ref(priv->vm, &vm, NULL);
 220         man->priv = vm;
 221         return 0;
 222 }
 223
 224 static int
 225 nv04_gart_manager_fini(struct ttm_mem_type_manager *man)
 226 {
 227         struct nouveau_vm *vm = man->priv;
 228         nouveau_vm_ref(NULL, &vm, NULL);
 229         man->priv = NULL;
 230         return 0;
 231 }
 232
 233 static void
 234 nv04_gart_manager_del(struct ttm_mem_type_manager *man, struct ttm_mem_reg *mem)
 235 {
 236         struct nouveau_mem *node = mem->mm_node;
 237         if (node->vma[0].node)
 238                 nouveau_vm_put(&node->vma[0]);
 239         kfree(mem->mm_node);
 240         mem->mm_node = NULL;
 241 }
 242
 243 static int
 244 nv04_gart_manager_new(struct ttm_mem_type_manager *man,
 245                       struct ttm_buffer_object *bo,
 246                       struct ttm_placement *placement,
 247                       struct ttm_mem_reg *mem)
 248 {
 249         struct nouveau_mem *node;
 250         int ret;
 251
 252         node = kzalloc(sizeof(*node), GFP_KERNEL);
 253         if (!node)
 254                 return -ENOMEM;
 255
 256         node->page_shift = 12;
 257
 258         ret = nouveau_vm_get(man->priv, mem->num_pages << 12, node->page_shift,
 259                              NV_MEM_ACCESS_RW, &node->vma[0]);
 260         if (ret) {
 261                 kfree(node);
 262                 return ret;
 263         }
 264
 265         mem->mm_node = node;
 266         mem->start   = node->vma[0].offset >> PAGE_SHIFT;
 267         return 0;
 268 }
 269
 270 static void
 271 nv04_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
 272 {
 273 }
 274
 275 const struct ttm_mem_type_manager_func nv04_gart_manager = {
 276         nv04_gart_manager_init,
 277         nv04_gart_manager_fini,
 278         nv04_gart_manager_new,
 279         nv04_gart_manager_del,
 280         nv04_gart_manager_debug
 281 };
 282
 283 int
 284 nouveau_ttm_mmap(struct file *filp, struct vm_area_struct *vma)
 285 {
 286         struct drm_file *file_priv = filp->private_data;
 287         struct nouveau_drm *drm = nouveau_drm(file_priv->minor->dev);
 288
 289         if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET))
 290                 return drm_mmap(filp, vma);
 291
 292         return ttm_bo_mmap(filp, vma, &drm->ttm.bdev);
 293 }
 294
 295 static int
 296 nouveau_ttm_mem_global_init(struct drm_global_reference *ref)
 297 {
 298         return ttm_mem_global_init(ref->object);
 299 }
 300
 301 static void
 302 nouveau_ttm_mem_global_release(struct drm_global_reference *ref)
 303 {
 304         ttm_mem_global_release(ref->object);
 305 }
 306
 307 int
 308 nouveau_ttm_global_init(struct nouveau_drm *drm)
 309 {
 310         struct drm_global_reference *global_ref;
 311         int ret;
 312
 313         global_ref = &drm->ttm.mem_global_ref;
 314         global_ref->global_type = DRM_GLOBAL_TTM_MEM;
 315         global_ref->size = sizeof(struct ttm_mem_global);
 316         global_ref->init = &nouveau_ttm_mem_global_init;
 317         global_ref->release = &nouveau_ttm_mem_global_release;
 318
 319         ret = drm_global_item_ref(global_ref);
 320         if (unlikely(ret != 0)) {
 321                 DRM_ERROR("Failed setting up TTM memory accounting\n");
 322                 drm->ttm.mem_global_ref.release = NULL;
 323                 return ret;
 324         }
 325
 326         drm->ttm.bo_global_ref.mem_glob = global_ref->object;
 327         global_ref = &drm->ttm.bo_global_ref.ref;
 328         global_ref->global_type = DRM_GLOBAL_TTM_BO;
 329         global_ref->size = sizeof(struct ttm_bo_global);
 330         global_ref->init = &ttm_bo_global_init;
 331         global_ref->release = &ttm_bo_global_release;
 332
 333         ret = drm_global_item_ref(global_ref);
 334         if (unlikely(ret != 0)) {
 335                 DRM_ERROR("Failed setting up TTM BO subsystem\n");
 336                 drm_global_item_unref(&drm->ttm.mem_global_ref);
 337                 drm->ttm.mem_global_ref.release = NULL;
 338                 return ret;
 339         }
 340
 341         return 0;
 342 }
 343
 344 void
 345 nouveau_ttm_global_release(struct nouveau_drm *drm)
 346 {
 347         if (drm->ttm.mem_global_ref.release == NULL)
 348                 return;
 349
 350         drm_global_item_unref(&drm->ttm.bo_global_ref.ref);
 351         drm_global_item_unref(&drm->ttm.mem_global_ref);
 352         drm->ttm.mem_global_ref.release = NULL;
 353 }
 354
 355 int
 356 nouveau_ttm_init(struct nouveau_drm *drm)
 357 {
 358         struct drm_device *dev = drm->dev;
 359         u32 bits;
 360         int ret;
 361
 362         bits = nouveau_vmmgr(drm->device)->dma_bits;
 363         if ( drm->agp.stat == ENABLED ||
 364             !pci_dma_supported(dev->pdev, DMA_BIT_MASK(bits)))
 365                 bits = 32;
 366
 367         ret = pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(bits));
 368         if (ret)
 369                 return ret;
 370
 371         ret = pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(bits));
 372         if (ret)
 373                 pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(32));
 374
 375         ret = nouveau_ttm_global_init(drm);
 376         if (ret)
 377                 return ret;
 378
 379         ret = ttm_bo_device_init(&drm->ttm.bdev,
 380                                   drm->ttm.bo_global_ref.ref.object,
 381                                   &nouveau_bo_driver, DRM_FILE_PAGE_OFFSET,
 382                                   bits <= 32 ? true : false);
 383         if (ret) {
 384                 NV_ERROR(drm, "error initialising bo driver, %d\n", ret);
 385                 return ret;
 386         }
 387
 388         /* VRAM init */
 389         drm->gem.vram_available  = nouveau_fb(drm->device)->ram.size;
 390         drm->gem.vram_available -= nouveau_instmem(drm->device)->reserved;
 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 = drm_mtrr_add(pci_resource_start(dev->pdev, 1),
 400                                      pci_resource_len(dev->pdev, 1),
 401                                      DRM_MTRR_WC);
 402
 403         /* GART init */
 404         if (drm->agp.stat != ENABLED) {
 405                 drm->gem.gart_available = nouveau_vmmgr(drm->device)->limit;
 406                 if (drm->gem.gart_available > 512 * 1024 * 1024)
 407                         drm->gem.gart_available = 512 * 1024 * 1024;
 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         if (drm->ttm.mtrr >= 0) {
 437                 drm_mtrr_del(drm->ttm.mtrr,
 438                              pci_resource_start(drm->dev->pdev, 1),
 439                              pci_resource_len(drm->dev->pdev, 1), DRM_MTRR_WC);
 440                 drm->ttm.mtrr = -1;
 441         }
 442 }