drm/shmem-helper: Add .gem_create_object helper that sets map_cached flag

}

EXPORT_SYMBOL(drm_gem_shmem_purge);

/**

 * drm_gem_shmem_create_object_cached - Create a shmem buffer object with

 *                                      cached mappings

 * @dev: DRM device

 * @size: Size of the object to allocate

 *

 * By default, shmem buffer objects use writecombine mappings. This

 * function implements struct drm_driver.gem_create_object for shmem

 * buffer objects with cached mappings.

 *

 * Returns:

 * A struct drm_gem_shmem_object * on success or NULL negative on failure.

 */

struct drm_gem_object *

drm_gem_shmem_create_object_cached(struct drm_device *dev, size_t size)

{

	struct drm_gem_shmem_object *shmem;

	shmem = kzalloc(sizeof(*shmem), GFP_KERNEL);

	if (!shmem)

		return NULL;

	shmem->map_cached = true;

	return &shmem->base;

}

EXPORT_SYMBOL(drm_gem_shmem_create_object_cached);

/**

 * drm_gem_shmem_dumb_create - Create a dumb shmem buffer object

 * @file: DRM file structure to create the dumb buffer for

drm_gem_shmem_create_with_handle(struct drm_file *file_priv,

				 struct drm_device *dev, size_t size,

				 uint32_t *handle);

struct drm_gem_object *

drm_gem_shmem_create_object_cached(struct drm_device *dev, size_t size);

int drm_gem_shmem_dumb_create(struct drm_file *file, struct drm_device *dev,

			      struct drm_mode_create_dumb *args);