drm_gem_mmap_obj
EXPORT_SYMBOL(drm_gem_mmap_obj);
ret = drm_gem_mmap_obj(obj, drm_vma_node_size(node) << PAGE_SHIFT,
ret = drm_gem_mmap_obj(obj, drm_vma_node_size(node) << PAGE_SHIFT,
int drm_gem_mmap_obj(struct drm_gem_object *obj, unsigned long obj_size,