drm/ttm: add reservation_object as argument to ttm_bo_init

This allows importing reservation objects from dma-bufs.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index 70b4491..0ccf7f2 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -460,6 +460,7 @@
  * point to the shmem object backing a GEM object if TTM is used to back a
  * GEM user interface.
  * @acc_size: Accounted size for this object.
+ * @resv: Pointer to a reservation_object, or NULL to let ttm allocate one.
  * @destroy: Destroy function. Use NULL for kfree().
  *
  * This function initializes a pre-allocated struct ttm_buffer_object.
@@ -487,6 +488,7 @@
 			struct file *persistent_swap_storage,
 			size_t acc_size,
 			struct sg_table *sg,
+			struct reservation_object *resv,
 			void (*destroy) (struct ttm_buffer_object *));
 
 /**