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 static int
  32 nouveau_vram_manager_init(struct ttm_mem_type_manager *man, unsigned long psize)
  33 {
  34         struct nouveau_drm *drm = nouveau_bdev(man->bdev);
  35         struct nouveau_fb *pfb = nvkm_fb(&drm->device);
  36         man->priv = pfb;
  37         return 0;
  38 }
  39
  40 static int
  41 nouveau_vram_manager_fini(struct ttm_mem_type_manager *man)
  42 {
  43         man->priv = NULL;
  44         return 0;
  45 }
  46
  47 static inline void
  48 nouveau_mem_node_cleanup(struct nouveau_mem *node)
  49 {
  50         if (node->vma[0].node) {
  51                 nouveau_vm_unmap(&node->vma[0]);
  52                 nouveau_vm_put(&node->vma[0]);
  53         }
  54
  55         if (node->vma[1].node) {
  56                 nouveau_vm_unmap(&node->vma[1]);
  57                 nouveau_vm_put(&node->vma[1]);
  58         }
  59 }
  60
  61 static void
  62 nouveau_vram_manager_del(struct ttm_mem_type_manager *man,
  63                          struct ttm_mem_reg *mem)
  64 {
  65         struct nouveau_drm *drm = nouveau_bdev(man->bdev);
  66         struct nouveau_fb *pfb = nvkm_fb(&drm->device);
  67         nouveau_mem_node_cleanup(mem->mm_node);
  68         pfb->ram->put(pfb, (struct nouveau_mem **)&mem->mm_node);
  69 }
  70
  71 static int
  72 nouveau_vram_manager_new(struct ttm_mem_type_manager *man,
  73                          struct ttm_buffer_object *bo,
  74                          struct ttm_placement *placement,
  75                          uint32_t flags,
  76                          struct ttm_mem_reg *mem)
  77 {
  78         struct nouveau_drm *drm = nouveau_bdev(man->bdev);
  79         struct nouveau_fb *pfb = nvkm_fb(&drm->device);
  80         struct nouveau_bo *nvbo = nouveau_bo(bo);
  81         struct nouveau_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 nouveau_fb *pfb = man->priv;
 107         struct nouveau_mm *mm = &pfb->vram;
 108         struct nouveau_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         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                          uint32_t flags,
 163                          struct ttm_mem_reg *mem)
 164 {
 165         struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
 166         struct nouveau_bo *nvbo = nouveau_bo(bo);
 167         struct nouveau_mem *node;
 168
 169         node = kzalloc(sizeof(*node), GFP_KERNEL);
 170         if (!node)
 171                 return -ENOMEM;
 172
 173         node->page_shift = 12;
 174
 175         switch (drm->device.info.family) {
 176         case NV_DEVICE_INFO_V0_TESLA:
 177                 if (drm->device.info.chipset != 0x50)
 178                         node->memtype = (nvbo->tile_flags & 0x7f00) >> 8;
 179                 break;
 180         case NV_DEVICE_INFO_V0_FERMI:
 181         case NV_DEVICE_INFO_V0_KEPLER:
 182                 node->memtype = (nvbo->tile_flags & 0xff00) >> 8;
 183                 break;
 184         default:
 185                 break;
 186         }
 187
 188         mem->mm_node = node;
 189         mem->start   = 0;
 190         return 0;
 191 }
 192
 193 static void
 194 nouveau_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
 195 {
 196 }
 197
 198 const struct ttm_mem_type_manager_func nouveau_gart_manager = {
 199         nouveau_gart_manager_init,
 200         nouveau_gart_manager_fini,
 201         nouveau_gart_manager_new,
 202         nouveau_gart_manager_del,
 203         nouveau_gart_manager_debug
 204 };
 205
 206 /*XXX*/
 207 #include <core/subdev/vm/nv04.h>
 208 static int
 209 nv04_gart_manager_init(struct ttm_mem_type_manager *man, unsigned long psize)
 210 {
 211         struct nouveau_drm *drm = nouveau_bdev(man->bdev);
 212         struct nouveau_vmmgr *vmm = nvkm_vmmgr(&drm->device);
 213         struct nv04_vmmgr_priv *priv = (void *)vmm;
 214         struct nouveau_vm *vm = NULL;
 215         nouveau_vm_ref(priv->vm, &vm, NULL);
 216         man->priv = vm;
 217         return 0;
 218 }
 219
 220 static int
 221 nv04_gart_manager_fini(struct ttm_mem_type_manager *man)
 222 {
 223         struct nouveau_vm *vm = man->priv;
 224         nouveau_vm_ref(NULL, &vm, NULL);
 225         man->priv = NULL;
 226         return 0;
 227 }
 228
 229 static void
 230 nv04_gart_manager_del(struct ttm_mem_type_manager *man, struct ttm_mem_reg *mem)
 231 {
 232         struct nouveau_mem *node = mem->mm_node;
 233         if (node->vma[0].node)
 234                 nouveau_vm_put(&node->vma[0]);
 235         kfree(mem->mm_node);
 236         mem->mm_node = NULL;
 237 }
 238
 239 static int
 240 nv04_gart_manager_new(struct ttm_mem_type_manager *man,
 241                       struct ttm_buffer_object *bo,
 242                       struct ttm_placement *placement,
 243                       uint32_t flags,
 244                       struct ttm_mem_reg *mem)
 245 {
 246         struct nouveau_mem *node;
 247         int ret;
 248
 249         node = kzalloc(sizeof(*node), GFP_KERNEL);
 250         if (!node)
 251                 return -ENOMEM;
 252
 253         node->page_shift = 12;
 254
 255         ret = nouveau_vm_get(man->priv, mem->num_pages << 12, node->page_shift,
 256                              NV_MEM_ACCESS_RW, &node->vma[0]);
 257         if (ret) {
 258                 kfree(node);
 259                 return ret;
 260         }
 261
 262         mem->mm_node = node;
 263         mem->start   = node->vma[0].offset >> PAGE_SHIFT;
 264         return 0;
 265 }
 266
 267 static void
 268 nv04_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
 269 {
 270 }
 271
 272 const struct ttm_mem_type_manager_func nv04_gart_manager = {
 273         nv04_gart_manager_init,
 274         nv04_gart_manager_fini,
 275         nv04_gart_manager_new,
 276         nv04_gart_manager_del,
 277         nv04_gart_manager_debug
 278 };
 279
 280 int
 281 nouveau_ttm_mmap(struct file *filp, struct vm_area_struct *vma)
 282 {
 283         struct drm_file *file_priv = filp->private_data;
 284         struct nouveau_drm *drm = nouveau_drm(file_priv->minor->dev);
 285
 286         if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET))
 287                 return drm_mmap(filp, vma);
 288
 289         return ttm_bo_mmap(filp, vma, &drm->ttm.bdev);
 290 }
 291
 292 static int
 293 nouveau_ttm_mem_global_init(struct drm_global_reference *ref)
 294 {
 295         return ttm_mem_global_init(ref->object);
 296 }
 297
 298 static void
 299 nouveau_ttm_mem_global_release(struct drm_global_reference *ref)
 300 {
 301         ttm_mem_global_release(ref->object);
 302 }
 303
 304 int
 305 nouveau_ttm_global_init(struct nouveau_drm *drm)
 306 {
 307         struct drm_global_reference *global_ref;
 308         int ret;
 309
 310         global_ref = &drm->ttm.mem_global_ref;
 311         global_ref->global_type = DRM_GLOBAL_TTM_MEM;
 312         global_ref->size = sizeof(struct ttm_mem_global);
 313         global_ref->init = &nouveau_ttm_mem_global_init;
 314         global_ref->release = &nouveau_ttm_mem_global_release;
 315
 316         ret = drm_global_item_ref(global_ref);
 317         if (unlikely(ret != 0)) {
 318                 DRM_ERROR("Failed setting up TTM memory accounting\n");
 319                 drm->ttm.mem_global_ref.release = NULL;
 320                 return ret;
 321         }
 322
 323         drm->ttm.bo_global_ref.mem_glob = global_ref->object;
 324         global_ref = &drm->ttm.bo_global_ref.ref;
 325         global_ref->global_type = DRM_GLOBAL_TTM_BO;
 326         global_ref->size = sizeof(struct ttm_bo_global);
 327         global_ref->init = &ttm_bo_global_init;
 328         global_ref->release = &ttm_bo_global_release;
 329
 330         ret = drm_global_item_ref(global_ref);
 331         if (unlikely(ret != 0)) {
 332                 DRM_ERROR("Failed setting up TTM BO subsystem\n");
 333                 drm_global_item_unref(&drm->ttm.mem_global_ref);
 334                 drm->ttm.mem_global_ref.release = NULL;
 335                 return ret;
 336         }
 337
 338         return 0;
 339 }
 340
 341 void
 342 nouveau_ttm_global_release(struct nouveau_drm *drm)
 343 {
 344         if (drm->ttm.mem_global_ref.release == NULL)
 345                 return;
 346
 347         drm_global_item_unref(&drm->ttm.bo_global_ref.ref);
 348         drm_global_item_unref(&drm->ttm.mem_global_ref);
 349         drm->ttm.mem_global_ref.release = NULL;
 350 }
 351
 352 int
 353 nouveau_ttm_init(struct nouveau_drm *drm)
 354 {
 355         struct drm_device *dev = drm->dev;
 356         u32 bits;
 357         int ret;
 358
 359         bits = nvkm_vmmgr(&drm->device)->dma_bits;
 360         if (nv_device_is_pci(nvkm_device(&drm->device))) {
 361                 if (drm->agp.stat == ENABLED ||
 362                      !pci_dma_supported(dev->pdev, DMA_BIT_MASK(bits)))
 363                         bits = 32;
 364
 365                 ret = pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(bits));
 366                 if (ret)
 367                         return ret;
 368
 369                 ret = pci_set_consistent_dma_mask(dev->pdev,
 370                                                   DMA_BIT_MASK(bits));
 371                 if (ret)
 372                         pci_set_consistent_dma_mask(dev->pdev,
 373                                                     DMA_BIT_MASK(32));
 374         }
 375
 376         ret = nouveau_ttm_global_init(drm);
 377         if (ret)
 378                 return ret;
 379
 380         ret = ttm_bo_device_init(&drm->ttm.bdev,
 381                                   drm->ttm.bo_global_ref.ref.object,
 382                                   &nouveau_bo_driver,
 383                                   dev->anon_inode->i_mapping,
 384                                   DRM_FILE_PAGE_OFFSET,
 385                                   bits <= 32 ? true : false);
 386         if (ret) {
 387                 NV_ERROR(drm, "error initialising bo driver, %d\n", ret);
 388                 return ret;
 389         }
 390
 391         /* VRAM init */
 392         drm->gem.vram_available = drm->device.info.ram_user;
 393
 394         ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_VRAM,
 395                               drm->gem.vram_available >> PAGE_SHIFT);
 396         if (ret) {
 397                 NV_ERROR(drm, "VRAM mm init failed, %d\n", ret);
 398                 return ret;
 399         }
 400
 401         drm->ttm.mtrr = arch_phys_wc_add(nv_device_resource_start(nvkm_device(&drm->device), 1),
 402                                          nv_device_resource_len(nvkm_device(&drm->device), 1));
 403
 404         /* GART init */
 405         if (drm->agp.stat != ENABLED) {
 406                 drm->gem.gart_available = nvkm_vmmgr(&drm->device)->limit;
 407         } else {
 408                 drm->gem.gart_available = drm->agp.size;
 409         }
 410
 411         ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_TT,
 412                               drm->gem.gart_available >> PAGE_SHIFT);
 413         if (ret) {
 414                 NV_ERROR(drm, "GART mm init failed, %d\n", ret);
 415                 return ret;
 416         }
 417
 418         NV_INFO(drm, "VRAM: %d MiB\n", (u32)(drm->gem.vram_available >> 20));
 419         NV_INFO(drm, "GART: %d MiB\n", (u32)(drm->gem.gart_available >> 20));
 420         return 0;
 421 }
 422
 423 void
 424 nouveau_ttm_fini(struct nouveau_drm *drm)
 425 {
 426         mutex_lock(&drm->dev->struct_mutex);
 427         ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 428         ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_TT);
 429         mutex_unlock(&drm->dev->struct_mutex);
 430
 431         ttm_bo_device_release(&drm->ttm.bdev);
 432
 433         nouveau_ttm_global_release(drm);
 434
 435         arch_phys_wc_del(drm->ttm.mtrr);
 436         drm->ttm.mtrr = 0;
 437 }