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-rw-r--r--include/drm/ttm/ttm_tt.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/drm/ttm/ttm_tt.h b/include/drm/ttm/ttm_tt.h
index f20832139815..17a0310e8aaa 100644
--- a/include/drm/ttm/ttm_tt.h
+++ b/include/drm/ttm/ttm_tt.h
@@ -140,6 +140,7 @@ int ttm_tt_create(struct ttm_buffer_object *bo, bool zero_alloc);
* @bo: The buffer object we create the ttm for.
* @page_flags: Page flags as identified by TTM_TT_FLAG_XX flags.
* @caching: the desired caching state of the pages
+ * @extra_pages: Extra pages needed for the driver.
*
* Create a struct ttm_tt to back data with system memory pages.
* No pages are actually allocated.
@@ -147,7 +148,8 @@ int ttm_tt_create(struct ttm_buffer_object *bo, bool zero_alloc);
* NULL: Out of memory.
*/
int ttm_tt_init(struct ttm_tt *ttm, struct ttm_buffer_object *bo,
- uint32_t page_flags, enum ttm_caching caching);
+ uint32_t page_flags, enum ttm_caching caching,
+ unsigned long extra_pages);
int ttm_sg_tt_init(struct ttm_tt *ttm_dma, struct ttm_buffer_object *bo,
uint32_t page_flags, enum ttm_caching caching);