diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_ttm.c | 229 |
1 files changed, 228 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c index bd35f930568..e729535e9b2 100644 --- a/drivers/gpu/drm/nouveau/nouveau_ttm.c +++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c @@ -28,6 +28,234 @@ #include "nouveau_drv.h" +static int +nouveau_vram_manager_init(struct ttm_mem_type_manager *man, unsigned long psize) +{ + /* nothing to do */ + return 0; +} + +static int +nouveau_vram_manager_fini(struct ttm_mem_type_manager *man) +{ + /* nothing to do */ + return 0; +} + +static inline void +nouveau_mem_node_cleanup(struct nouveau_mem *node) +{ + if (node->vma[0].node) { + nouveau_vm_unmap(&node->vma[0]); + nouveau_vm_put(&node->vma[0]); + } + + if (node->vma[1].node) { + nouveau_vm_unmap(&node->vma[1]); + nouveau_vm_put(&node->vma[1]); + } +} + +static void +nouveau_vram_manager_del(struct ttm_mem_type_manager *man, + struct ttm_mem_reg *mem) +{ + struct drm_nouveau_private *dev_priv = nouveau_bdev(man->bdev); + struct drm_device *dev = dev_priv->dev; + + nouveau_mem_node_cleanup(mem->mm_node); + nvfb_vram_put(dev, (struct nouveau_mem **)&mem->mm_node); +} + +static int +nouveau_vram_manager_new(struct ttm_mem_type_manager *man, + struct ttm_buffer_object *bo, + struct ttm_placement *placement, + struct ttm_mem_reg *mem) +{ + struct drm_nouveau_private *dev_priv = nouveau_bdev(man->bdev); + struct drm_device *dev = dev_priv->dev; + struct nouveau_bo *nvbo = nouveau_bo(bo); + struct nouveau_mem *node; + u32 size_nc = 0; + int ret; + + if (nvbo->tile_flags & NOUVEAU_GEM_TILE_NONCONTIG) + size_nc = 1 << nvbo->page_shift; + + ret = nvfb_vram_get(dev, mem->num_pages << PAGE_SHIFT, + mem->page_alignment << PAGE_SHIFT, size_nc, + (nvbo->tile_flags >> 8) & 0x3ff, &node); + if (ret) { + mem->mm_node = NULL; + return (ret == -ENOSPC) ? 0 : ret; + } + + node->page_shift = nvbo->page_shift; + + mem->mm_node = node; + mem->start = node->offset >> PAGE_SHIFT; + return 0; +} + +void +nouveau_vram_manager_debug(struct ttm_mem_type_manager *man, const char *prefix) +{ + struct nouveau_mm *mm = man->priv; + struct nouveau_mm_node *r; + u32 total = 0, free = 0; + + mutex_lock(&mm->mutex); + list_for_each_entry(r, &mm->nodes, nl_entry) { + printk(KERN_DEBUG "%s %d: 0x%010llx 0x%010llx\n", + prefix, r->type, ((u64)r->offset << 12), + (((u64)r->offset + r->length) << 12)); + + total += r->length; + if (!r->type) + free += r->length; + } + mutex_unlock(&mm->mutex); + + printk(KERN_DEBUG "%s total: 0x%010llx free: 0x%010llx\n", + prefix, (u64)total << 12, (u64)free << 12); + printk(KERN_DEBUG "%s block: 0x%08x\n", + prefix, mm->block_size << 12); +} + +const struct ttm_mem_type_manager_func nouveau_vram_manager = { + nouveau_vram_manager_init, + nouveau_vram_manager_fini, + nouveau_vram_manager_new, + nouveau_vram_manager_del, + nouveau_vram_manager_debug +}; + +static int +nouveau_gart_manager_init(struct ttm_mem_type_manager *man, unsigned long psize) +{ + return 0; +} + +static int +nouveau_gart_manager_fini(struct ttm_mem_type_manager *man) +{ + return 0; +} + +static void +nouveau_gart_manager_del(struct ttm_mem_type_manager *man, + struct ttm_mem_reg *mem) +{ + nouveau_mem_node_cleanup(mem->mm_node); + kfree(mem->mm_node); + mem->mm_node = NULL; +} + +static int +nouveau_gart_manager_new(struct ttm_mem_type_manager *man, + struct ttm_buffer_object *bo, + struct ttm_placement *placement, + struct ttm_mem_reg *mem) +{ + struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev); + struct nouveau_mem *node; + + if (unlikely((mem->num_pages << PAGE_SHIFT) >= + dev_priv->gart_info.aper_size)) + return -ENOMEM; + + node = kzalloc(sizeof(*node), GFP_KERNEL); + if (!node) + return -ENOMEM; + node->page_shift = 12; + + mem->mm_node = node; + mem->start = 0; + return 0; +} + +void +nouveau_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix) +{ +} + +const struct ttm_mem_type_manager_func nouveau_gart_manager = { + nouveau_gart_manager_init, + nouveau_gart_manager_fini, + nouveau_gart_manager_new, + nouveau_gart_manager_del, + nouveau_gart_manager_debug +}; + +static int +nv04_gart_manager_init(struct ttm_mem_type_manager *man, unsigned long psize) +{ + struct drm_nouveau_private *dev_priv = nouveau_bdev(man->bdev); + struct drm_device *dev = dev_priv->dev; + man->priv = nv04vm_ref(dev); + return (man->priv != NULL) ? 0 : -ENODEV; +} + +static int +nv04_gart_manager_fini(struct ttm_mem_type_manager *man) +{ + struct nouveau_vm *vm = man->priv; + nouveau_vm_ref(NULL, &vm, NULL); + man->priv = NULL; + return 0; +} + +static void +nv04_gart_manager_del(struct ttm_mem_type_manager *man, struct ttm_mem_reg *mem) +{ + struct nouveau_mem *node = mem->mm_node; + if (node->vma[0].node) + nouveau_vm_put(&node->vma[0]); + kfree(mem->mm_node); + mem->mm_node = NULL; +} + +static int +nv04_gart_manager_new(struct ttm_mem_type_manager *man, + struct ttm_buffer_object *bo, + struct ttm_placement *placement, + struct ttm_mem_reg *mem) +{ + struct nouveau_mem *node; + int ret; + + node = kzalloc(sizeof(*node), GFP_KERNEL); + if (!node) + return -ENOMEM; + + node->page_shift = 12; + + ret = nouveau_vm_get(man->priv, mem->num_pages << 12, node->page_shift, + NV_MEM_ACCESS_RW, &node->vma[0]); + if (ret) { + kfree(node); + return ret; + } + + mem->mm_node = node; + mem->start = node->vma[0].offset >> PAGE_SHIFT; + return 0; +} + +void +nv04_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix) +{ +} + +const struct ttm_mem_type_manager_func nv04_gart_manager = { + nv04_gart_manager_init, + nv04_gart_manager_fini, + nv04_gart_manager_new, + nv04_gart_manager_del, + nv04_gart_manager_debug +}; + int nouveau_ttm_mmap(struct file *filp, struct vm_area_struct *vma) { @@ -100,4 +328,3 @@ nouveau_ttm_global_release(struct drm_nouveau_private *dev_priv) drm_global_item_unref(&dev_priv->ttm.mem_global_ref); dev_priv->ttm.mem_global_ref.release = NULL; } - |