static struct drm_gem_object *vgem_gem_create(struct drm_device *dev,
struct drm_file *file,
unsigned int *handle,
unsigned long size)
{
struct drm_vgem_gem_object *obj;
int ret;
obj = __vgem_gem_create(dev, size);
if (IS_ERR(obj))
return ERR_CAST(obj);
ret = drm_gem_handle_create(file, &obj->base, handle);
drm_gem_object_put_unlocked(&obj->base);
if (ret)
goto err;
return &obj->base;
err:
__vgem_gem_destroy(obj);
return ERR_PTR(ret);
}
static struct drm_gem_object *vgem_prime_import_sg_table(struct drm_device *dev,
struct dma_buf_attachment *attach, struct sg_table *sg)
{
struct drm_vgem_gem_object *obj;
int npages;
obj = __vgem_gem_create(dev, attach->dmabuf->size);
if (IS_ERR(obj))
return ERR_CAST(obj);
npages = PAGE_ALIGN(attach->dmabuf->size) / PAGE_SIZE;
obj->table = sg;
obj->pages = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL);
if (!obj->pages) {
__vgem_gem_destroy(obj);
return ERR_PTR(-ENOMEM);
}
obj->pages_pin_count++; /* perma-pinned */
drm_prime_sg_to_page_addr_arrays(obj->table, obj->pages, NULL,
npages);
return &obj->base;
}
