From 95762c2b34069bf4adb7929969f1f5f5fc8a38df Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Wed, 17 Nov 2010 12:28:30 +0000 Subject: drm/ttm: Improved fencing of buffer object lists Drastically reduce the number of spin lock / unlock operations by performing unreserving and fencing under global locks. Signed-off-by: Thomas Hellstrom Reviewed-by: Jerome Glisse Signed-off-by: Dave Airlie --- include/drm/ttm/ttm_bo_driver.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include/drm/ttm/ttm_bo_driver.h') diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index ca8131e9830..cfb9ca4ec1c 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -909,6 +909,16 @@ extern int ttm_bo_reserve_locked(struct ttm_buffer_object *bo, */ extern void ttm_bo_unreserve(struct ttm_buffer_object *bo); +/** + * ttm_bo_unreserve_locked + * + * @bo: A pointer to a struct ttm_buffer_object. + * + * Unreserve a previous reservation of @bo. + * Needs to be called with struct ttm_bo_global::lru_lock held. + */ +extern void ttm_bo_unreserve_locked(struct ttm_buffer_object *bo); + /** * ttm_bo_wait_unreserved * -- cgit v1.2.3-70-g09d2