From ab74961810ba7935b5f9643da10daaa36690f48e Mon Sep 17 00:00:00 2001 From: Christian König Date: Mon, 11 Jan 2016 15:35:20 +0100 Subject: drm/ttm: add ttm_bo_move_to_lru_tail function v2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This allows the drivers to move a BO to the end of the LRU without removing and adding it again. v2: Make it more robust, handle pinned and swapable BOs as well. Reviewed-by: Thomas Hellstrom Signed-off-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/ttm/ttm_bo.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 3ea9a01c960c..4cbf26555093 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -228,6 +228,27 @@ void ttm_bo_del_sub_from_lru(struct ttm_buffer_object *bo) } EXPORT_SYMBOL(ttm_bo_del_sub_from_lru); +void ttm_bo_move_to_lru_tail(struct ttm_buffer_object *bo) +{ + struct ttm_bo_device *bdev = bo->bdev; + struct ttm_mem_type_manager *man; + + lockdep_assert_held(&bo->resv->lock.base); + + if (bo->mem.placement & TTM_PL_FLAG_NO_EVICT) { + list_del_init(&bo->swap); + list_del_init(&bo->lru); + + } else { + if (bo->ttm && !(bo->ttm->page_flags & TTM_PAGE_FLAG_SG)) + list_move_tail(&bo->swap, &bo->glob->swap_lru); + + man = &bdev->man[bo->mem.mem_type]; + list_move_tail(&bo->lru, &man->lru); + } +} +EXPORT_SYMBOL(ttm_bo_move_to_lru_tail); + /* * Call bo->mutex locked. */ -- cgit v1.2.3