}
EXPORT_SYMBOL(drm_gem_handle_delete);
+/**
+ * drm_gem_dumb_map_offset - return the fake mmap offset for a gem object
+ * @file: drm file-private structure containing the gem object
+ * @dev: corresponding drm_device
+ * @handle: gem object handle
+ * @offset: return location for the fake mmap offset
+ *
+ * This implements the &drm_driver.dumb_map_offset kms driver callback for
+ * drivers which use gem to manage their backing storage.
+ *
+ * Returns:
+ * 0 on success or a negative error code on failure.
+ */
+int drm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
+ u32 handle, u64 *offset)
+{
+ struct drm_gem_object *obj;
+ int ret;
+
+ obj = drm_gem_object_lookup(file, handle);
+ if (!obj)
+ return -ENOENT;
+
+ ret = drm_gem_create_mmap_offset(obj);
+ if (ret)
+ goto out;
+
+ *offset = drm_vma_node_offset_addr(&obj->vma_node);
+out:
+ drm_gem_object_put_unlocked(obj);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(drm_gem_dumb_map_offset);
+
/**
* drm_gem_dumb_destroy - dumb fb callback helper for gem based drivers
* @file: drm file-private structure to remove the dumb handle from
return;
dev = obj->dev;
- might_lock(&dev->struct_mutex);
- if (dev->driver->gem_free_object_unlocked)
+ if (dev->driver->gem_free_object_unlocked) {
kref_put(&obj->refcount, drm_gem_object_free);
- else if (kref_put_mutex(&obj->refcount, drm_gem_object_free,
+ } else {
+ might_lock(&dev->struct_mutex);
+ if (kref_put_mutex(&obj->refcount, drm_gem_object_free,
&dev->struct_mutex))
- mutex_unlock(&dev->struct_mutex);
+ mutex_unlock(&dev->struct_mutex);
+ }
}
EXPORT_SYMBOL(drm_gem_object_put_unlocked);
struct drm_vma_offset_node *node;
int ret;
- if (drm_device_is_unplugged(dev))
+ if (drm_dev_is_unplugged(dev))
return -ENODEV;
drm_vma_offset_lock_lookup(dev->vma_offset_manager);