[PATCH] drm/ttm: Doc the unit of ttm_resource_manager.usage

[Nirmoy Das]

Document the unit of ttm_resource_manager.usage which was
missing before.

Cc: Thomas Hellström <thomas.hellstrom at linux.intel.com>
Cc: Christian König <christian.koenig at amd.com>
Cc: Anshuman Gupta <anshuman.gupta at intel.com>

Signed-off-by: Nirmoy Das <nirmoy.das at intel.com>
---
 include/drm/ttm/ttm_resource.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/drm/ttm/ttm_resource.h b/include/drm/ttm/ttm_resource.h
index 78a226eba953..32d6b9c91c40 100644
--- a/include/drm/ttm/ttm_resource.h
+++ b/include/drm/ttm/ttm_resource.h
@@ -145,6 +145,7 @@ struct ttm_resource_manager_func {
  * @move_lock: lock for move fence
  * @move: The fence of the last pipelined move operation.
  * @lru: The lru list for this memory type.
+ * @usage: How much of the resources are used, in bytes.
  *
  * This structure is used to identify and manage memory types for a device.
  */
@@ -170,8 +171,7 @@ struct ttm_resource_manager {
 	struct list_head lru[TTM_MAX_BO_PRIORITY];
 
 	/**
-	 * @usage: How much of the resources are used, protected by the
-	 * bdev->lru_lock.
+	 * Protected by the bdev->lru_lock.
 	 */
 	uint64_t usage;
 };
-- 
2.39.0