2 files changed, 18 insertions, 6 deletions

diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index 8d95a42cf21e..974c8f801c39 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -429,9 +429,9 @@ extern void ttm_bo_unlock_delayed_workqueue(struct ttm_bo_device *bdev,
  * -EBUSY if the buffer is busy and no_wait is true.
  * -ERESTARTSYS if interrupted by a signal.
  */
-
 extern int
 ttm_bo_synccpu_write_grab(struct ttm_buffer_object *bo, bool no_wait);
+
 /**
  * ttm_bo_synccpu_write_release:
  *
@@ -442,6 +442,22 @@ ttm_bo_synccpu_write_grab(struct ttm_buffer_object *bo, bool no_wait);
 extern void ttm_bo_synccpu_write_release(struct ttm_buffer_object *bo);
 
 /**
+ * ttm_bo_acc_size
+ *
+ * @bdev: Pointer to a ttm_bo_device struct.
+ * @bo_size: size of the buffer object in byte.
+ * @struct_size: size of the structure holding buffer object datas
+ *
+ * Returns size to account for a buffer object
+ */
+size_t ttm_bo_acc_size(struct ttm_bo_device *bdev,
+                       unsigned long bo_size,
+                       unsigned struct_size);
+size_t ttm_bo_dma_acc_size(struct ttm_bo_device *bdev,
+                           unsigned long bo_size,
+                           unsigned struct_size);
+
+/**
  * ttm_bo_init
  *
  * @bdev: Pointer to a ttm_bo_device struct.
@@ -488,6 +504,7 @@ extern int ttm_bo_init(struct ttm_bo_device *bdev,
                         struct file *persistent_swap_storage,
                         size_t acc_size,
                         void (*destroy) (struct ttm_buffer_object *));
+
 /**
  * ttm_bo_synccpu_object_init
  *
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index b2a0848a4d02..2be889161b4c 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -469,9 +469,6 @@ struct ttm_bo_global_ref {
  * @dummy_read_page: Pointer to a dummy page used for mapping requests
  * of unpopulated pages.
  * @shrink: A shrink callback object used for buffer object swap.
- * @ttm_bo_extra_size: Extra size (sizeof(struct ttm_buffer_object) excluded)
- * used by a buffer object. This is excluding page arrays and backing pages.
- * @ttm_bo_size: This is @ttm_bo_extra_size + sizeof(struct ttm_buffer_object).
  * @device_list_mutex: Mutex protecting the device list.
  * This mutex is held while traversing the device list for pm options.
  * @lru_lock: Spinlock protecting the bo subsystem lru lists.
@@ -489,8 +486,6 @@ struct ttm_bo_global {
         struct ttm_mem_global *mem_glob;
         struct page *dummy_read_page;
         struct ttm_mem_shrink shrink;
-        size_t ttm_bo_extra_size;
-        size_t ttm_bo_size;
         struct mutex device_list_mutex;
         spinlock_t lru_lock;