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                          const struct ttm_place *place,
  75                          struct ttm_mem_reg *mem)
  76 {
  77         struct nouveau_drm *drm = nouveau_bdev(man->bdev);
  78         struct nouveau_fb *pfb = nvkm_fb(&drm->device);
  79         struct nouveau_bo *nvbo = nouveau_bo(bo);
  80         struct nouveau_mem *node;
  81         u32 size_nc = 0;
  82         int ret;
  83
  84         if (nvbo->tile_flags & NOUVEAU_GEM_TILE_NONCONTIG)
  85                 size_nc = 1 << nvbo->page_shift;
  86
  87         ret = pfb->ram->get(pfb, mem->num_pages << PAGE_SHIFT,
  88                            mem->page_alignment << PAGE_SHIFT, size_nc,
  89                            (nvbo->tile_flags >> 8) & 0x3ff, &node);
  90         if (ret) {
  91                 mem->mm_node = NULL;
  92                 return (ret == -ENOSPC) ? 0 : ret;
  93         }
  94
  95         node->page_shift = nvbo->page_shift;
  96
  97         mem->mm_node = node;
  98         mem->start   = node->offset >> PAGE_SHIFT;
  99         return 0;
 100 }
 101
 102 static void
 103 nouveau_vram_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
 104 {
 105         struct nouveau_fb *pfb = man->priv;
 106         struct nouveau_mm *mm = &pfb->vram;
 107         struct nouveau_mm_node *r;
 108         u32 total = 0, free = 0;
 109
 110         mutex_lock(&nv_subdev(pfb)->mutex);
 111         list_for_each_entry(r, &mm->nodes, nl_entry) {
 112                 printk(KERN_DEBUG "%s %d: 0x%010llx 0x%010llx\n",
 113                        prefix, r->type, ((u64)r->offset << 12),
 114                        (((u64)r->offset + r->length) << 12));
 115
 116                 total += r->length;
 117                 if (!r->type)
 118                         free += r->length;
 119         }
 120         mutex_unlock(&nv_subdev(pfb)->mutex);
 121
 122         printk(KERN_DEBUG "%s  total: 0x%010llx free: 0x%010llx\n",
 123                prefix, (u64)total << 12, (u64)free << 12);
 124         printk(KERN_DEBUG "%s  block: 0x%08x\n",
 125                prefix, mm->block_size << 12);
 126 }
 127
 128 const struct ttm_mem_type_manager_func nouveau_vram_manager = {
 129         nouveau_vram_manager_init,
 130         nouveau_vram_manager_fini,
 131         nouveau_vram_manager_new,
 132         nouveau_vram_manager_del,
 133         nouveau_vram_manager_debug
 134 };
 135
 136 static int
 137 nouveau_gart_manager_init(struct ttm_mem_type_manager *man, unsigned long psize)
 138 {
 139         return 0;
 140 }
 141
 142 static int
 143 nouveau_gart_manager_fini(struct ttm_mem_type_manager *man)
 144 {
 145         return 0;
 146 }
 147
 148 static void
 149 nouveau_gart_manager_del(struct ttm_mem_type_manager *man,
 150                          struct ttm_mem_reg *mem)
 151 {
 152         nouveau_mem_node_cleanup(mem->mm_node);
 153         kfree(mem->mm_node);
 154         mem->mm_node = NULL;
 155 }
 156
 157 static int
 158 nouveau_gart_manager_new(struct ttm_mem_type_manager *man,
 159                          struct ttm_buffer_object *bo,
 160                          const struct ttm_place *place,
 161                          struct ttm_mem_reg *mem)
 162 {
 163         struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
 164         struct nouveau_bo *nvbo = nouveau_bo(bo);
 165         struct nouveau_mem *node;
 166
 167         node = kzalloc(sizeof(*node), GFP_KERNEL);
 168         if (!node)
 169                 return -ENOMEM;
 170
 171         node->page_shift = 12;
 172
 173         switch (drm->device.info.family) {
 174         case NV_DEVICE_INFO_V0_TESLA:
 175                 if (drm->device.info.chipset != 0x50)
 176                         node->memtype = (nvbo->tile_flags & 0x7f00) >> 8;
 177                 break;
 178         case NV_DEVICE_INFO_V0_FERMI:
 179         case NV_DEVICE_INFO_V0_KEPLER:
 180                 node->memtype = (nvbo->tile_flags & 0xff00) >> 8;
 181                 break;
 182         default:
 183                 break;
 184         }
 185
 186         mem->mm_node = node;
 187         mem->start   = 0;
 188         return 0;
 189 }
 190
 191 static void
 192 nouveau_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
 193 {
 194 }
 195
 196 const struct ttm_mem_type_manager_func nouveau_gart_manager = {
 197         nouveau_gart_manager_init,
 198         nouveau_gart_manager_fini,
 199         nouveau_gart_manager_new,
 200         nouveau_gart_manager_del,
 201         nouveau_gart_manager_debug
 202 };
 203
 204 /*XXX*/
 205 #include <core/subdev/vm/nv04.h>
 206 static int
 207 nv04_gart_manager_init(struct ttm_mem_type_manager *man, unsigned long psize)
 208 {
 209         struct nouveau_drm *drm = nouveau_bdev(man->bdev);
 210         struct nouveau_vmmgr *vmm = nvkm_vmmgr(&drm->device);
 211         struct nv04_vmmgr_priv *priv = (void *)vmm;
 212         struct nouveau_vm *vm = NULL;
 213         nouveau_vm_ref(priv->vm, &vm, NULL);
 214         man->priv = vm;
 215         return 0;
 216 }
 217
 218 static int
 219 nv04_gart_manager_fini(struct ttm_mem_type_manager *man)
 220 {
 221         struct nouveau_vm *vm = man->priv;
 222         nouveau_vm_ref(NULL, &vm, NULL);
 223         man->priv = NULL;
 224         return 0;
 225 }
 226
 227 static void
 228 nv04_gart_manager_del(struct ttm_mem_type_manager *man, struct ttm_mem_reg *mem)
 229 {
 230         struct nouveau_mem *node = mem->mm_node;
 231         if (node->vma[0].node)
 232                 nouveau_vm_put(&node->vma[0]);
 233         kfree(mem->mm_node);
 234         mem->mm_node = NULL;
 235 }
 236
 237 static int
 238 nv04_gart_manager_new(struct ttm_mem_type_manager *man,
 239                       struct ttm_buffer_object *bo,
 240                       const struct ttm_place *place,
 241                       struct ttm_mem_reg *mem)
 242 {
 243         struct nouveau_mem *node;
 244         int ret;
 245
 246         node = kzalloc(sizeof(*node), GFP_KERNEL);
 247         if (!node)
 248                 return -ENOMEM;
 249
 250         node->page_shift = 12;
 251
 252         ret = nouveau_vm_get(man->priv, mem->num_pages << 12, node->page_shift,
 253                              NV_MEM_ACCESS_RW, &node->vma[0]);
 254         if (ret) {
 255                 kfree(node);
 256                 return ret;
 257         }
 258
 259         mem->mm_node = node;
 260         mem->start   = node->vma[0].offset >> PAGE_SHIFT;
 261         return 0;
 262 }
 263
 264 static void
 265 nv04_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
 266 {
 267 }
 268
 269 const struct ttm_mem_type_manager_func nv04_gart_manager = {
 270         nv04_gart_manager_init,
 271         nv04_gart_manager_fini,
 272         nv04_gart_manager_new,
 273         nv04_gart_manager_del,
 274         nv04_gart_manager_debug
 275 };
 276
 277 int
 278 nouveau_ttm_mmap(struct file *filp, struct vm_area_struct *vma)
 279 {
 280         struct drm_file *file_priv = filp->private_data;
 281         struct nouveau_drm *drm = nouveau_drm(file_priv->minor->dev);
 282
 283         if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET))
 284                 return -EINVAL;
 285
 286         return ttm_bo_mmap(filp, vma, &drm->ttm.bdev);
 287 }
 288
 289 static int
 290 nouveau_ttm_mem_global_init(struct drm_global_reference *ref)
 291 {
 292         return ttm_mem_global_init(ref->object);
 293 }
 294
 295 static void
 296 nouveau_ttm_mem_global_release(struct drm_global_reference *ref)
 297 {
 298         ttm_mem_global_release(ref->object);
 299 }
 300
 301 int
 302 nouveau_ttm_global_init(struct nouveau_drm *drm)
 303 {
 304         struct drm_global_reference *global_ref;
 305         int ret;
 306
 307         global_ref = &drm->ttm.mem_global_ref;
 308         global_ref->global_type = DRM_GLOBAL_TTM_MEM;
 309         global_ref->size = sizeof(struct ttm_mem_global);
 310         global_ref->init = &nouveau_ttm_mem_global_init;
 311         global_ref->release = &nouveau_ttm_mem_global_release;
 312
 313         ret = drm_global_item_ref(global_ref);
 314         if (unlikely(ret != 0)) {
 315                 DRM_ERROR("Failed setting up TTM memory accounting\n");
 316                 drm->ttm.mem_global_ref.release = NULL;
 317                 return ret;
 318         }
 319
 320         drm->ttm.bo_global_ref.mem_glob = global_ref->object;
 321         global_ref = &drm->ttm.bo_global_ref.ref;
 322         global_ref->global_type = DRM_GLOBAL_TTM_BO;
 323         global_ref->size = sizeof(struct ttm_bo_global);
 324         global_ref->init = &ttm_bo_global_init;
 325         global_ref->release = &ttm_bo_global_release;
 326
 327         ret = drm_global_item_ref(global_ref);
 328         if (unlikely(ret != 0)) {
 329                 DRM_ERROR("Failed setting up TTM BO subsystem\n");
 330                 drm_global_item_unref(&drm->ttm.mem_global_ref);
 331                 drm->ttm.mem_global_ref.release = NULL;
 332                 return ret;
 333         }
 334
 335         return 0;
 336 }
 337
 338 void
 339 nouveau_ttm_global_release(struct nouveau_drm *drm)
 340 {
 341         if (drm->ttm.mem_global_ref.release == NULL)
 342                 return;
 343
 344         drm_global_item_unref(&drm->ttm.bo_global_ref.ref);
 345         drm_global_item_unref(&drm->ttm.mem_global_ref);
 346         drm->ttm.mem_global_ref.release = NULL;
 347 }
 348
 349 int
 350 nouveau_ttm_init(struct nouveau_drm *drm)
 351 {
 352         struct drm_device *dev = drm->dev;
 353         u32 bits;
 354         int ret;
 355
 356         bits = nvkm_vmmgr(&drm->device)->dma_bits;
 357         if (nv_device_is_pci(nvkm_device(&drm->device))) {
 358                 if (drm->agp.stat == ENABLED ||
 359                      !pci_dma_supported(dev->pdev, DMA_BIT_MASK(bits)))
 360                         bits = 32;
 361
 362                 ret = pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(bits));
 363                 if (ret)
 364                         return ret;
 365
 366                 ret = pci_set_consistent_dma_mask(dev->pdev,
 367                                                   DMA_BIT_MASK(bits));
 368                 if (ret)
 369                         pci_set_consistent_dma_mask(dev->pdev,
 370                                                     DMA_BIT_MASK(32));
 371         }
 372
 373         ret = nouveau_ttm_global_init(drm);
 374         if (ret)
 375                 return ret;
 376
 377         ret = ttm_bo_device_init(&drm->ttm.bdev,
 378                                   drm->ttm.bo_global_ref.ref.object,
 379                                   &nouveau_bo_driver,
 380                                   dev->anon_inode->i_mapping,
 381                                   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 = drm->device.info.ram_user;
 390
 391         ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_VRAM,
 392                               drm->gem.vram_available >> PAGE_SHIFT);
 393         if (ret) {
 394                 NV_ERROR(drm, "VRAM mm init failed, %d\n", ret);
 395                 return ret;
 396         }
 397
 398         drm->ttm.mtrr = arch_phys_wc_add(nv_device_resource_start(nvkm_device(&drm->device), 1),
 399                                          nv_device_resource_len(nvkm_device(&drm->device), 1));
 400
 401         /* GART init */
 402         if (drm->agp.stat != ENABLED) {
 403                 drm->gem.gart_available = nvkm_vmmgr(&drm->device)->limit;
 404         } else {
 405                 drm->gem.gart_available = drm->agp.size;
 406         }
 407
 408         ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_TT,
 409                               drm->gem.gart_available >> PAGE_SHIFT);
 410         if (ret) {
 411                 NV_ERROR(drm, "GART mm init failed, %d\n", ret);
 412                 return ret;
 413         }
 414
 415         NV_INFO(drm, "VRAM: %d MiB\n", (u32)(drm->gem.vram_available >> 20));
 416         NV_INFO(drm, "GART: %d MiB\n", (u32)(drm->gem.gart_available >> 20));
 417         return 0;
 418 }
 419
 420 void
 421 nouveau_ttm_fini(struct nouveau_drm *drm)
 422 {
 423         mutex_lock(&drm->dev->struct_mutex);
 424         ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 425         ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_TT);
 426         mutex_unlock(&drm->dev->struct_mutex);
 427
 428         ttm_bo_device_release(&drm->ttm.bdev);
 429
 430         nouveau_ttm_global_release(drm);
 431
 432         arch_phys_wc_del(drm->ttm.mtrr);
 433         drm->ttm.mtrr = 0;
 434 }