Commit c165812c authored by Michel Dänzer's avatar Michel Dänzer Committed by Alex Deucher
Browse files

drm/ttm: Add DRM_MM_SEARCH_BELOW for TTM_PL_FLAG_TOPDOWN 



If the BO should be placed at the top of the area, we should start looking
for holes from the top.

Reviewed-by: default avatarLauri Kasanen <cand@gmx.com>
Signed-off-by: default avatarMichel Dänzer <michel.daenzer@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent a8b5ebe6

drivers/gpu/drm/ttm/ttm_bo_manager.c

+5 −3
Original line number Diff line number Diff line
@@ -55,6 +55,7 @@ static int ttm_bo_man_get_node(struct ttm_mem_type_manager *man, 
	struct ttm_range_manager *rman = (struct ttm_range_manager *) man->priv;

	struct drm_mm *mm = &rman->mm;

	struct drm_mm_node *node = NULL;

	enum drm_mm_search_flags sflags = DRM_MM_SEARCH_BEST;

	enum drm_mm_allocator_flags aflags = DRM_MM_CREATE_DEFAULT;

	unsigned long lpfn;

	int ret;
@@ -67,15 +68,16 @@ static int ttm_bo_man_get_node(struct ttm_mem_type_manager *man, 
	if (!node)

		return -ENOMEM;



	if (place->flags & TTM_PL_FLAG_TOPDOWN)

	if (place->flags & TTM_PL_FLAG_TOPDOWN) {

		sflags |= DRM_MM_SEARCH_BELOW;

		aflags = DRM_MM_CREATE_TOP;

	}



	spin_lock(&rman->lock);

	ret = drm_mm_insert_node_in_range_generic(mm, node, mem->num_pages,

					  mem->page_alignment, 0,

					  place->fpfn, lpfn,

					  DRM_MM_SEARCH_BEST,

					  aflags);

					  sflags, aflags);

	spin_unlock(&rman->lock);



	if (unlikely(ret)) {

CRA Git | Maintained and supported by SUSTech CRA and CCSE