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From: "Michel Dänzer" <michel@daenzer.net>
To: dri-devel@lists.freedesktop.org
Cc: Lauri Kasanen <cand@gmx.com>
Subject: [PATCH 3/5] drm/ttm: Use only DRM_MM_SEARCH_BELOW for TTM_PL_FLAG_TOPDOWN
Date: Tue, 28 Oct 2014 18:35:04 +0900	[thread overview]
Message-ID: <1414488906-3924-3-git-send-email-michel@daenzer.net> (raw)
In-Reply-To: <1414488906-3924-1-git-send-email-michel@daenzer.net>

From: Michel Dänzer <michel.daenzer@amd.com>

DRM_MM_SEARCH_BEST gets the smallest hole which can fit the BO. That seems
against the idea of TTM_PL_FLAG_TOPDOWN:

* The smallest hole may be in the overall bottom of the area
* If the hole isn't much larger than the BO, it doesn't make much
  difference whether the BO is placed at the bottom or at the top of the
  hole

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
---
 drivers/gpu/drm/ttm/ttm_bo_manager.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/ttm/ttm_bo_manager.c b/drivers/gpu/drm/ttm/ttm_bo_manager.c
index 1e93f6c..aa0bd05 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_manager.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_manager.c
@@ -69,7 +69,7 @@ static int ttm_bo_man_get_node(struct ttm_mem_type_manager *man,
 		return -ENOMEM;
 
 	if (place->flags & TTM_PL_FLAG_TOPDOWN) {
-		sflags |= DRM_MM_SEARCH_BELOW;
+		sflags = DRM_MM_SEARCH_BELOW;
 		aflags = DRM_MM_CREATE_TOP;
 	}
 
-- 
2.1.1

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  parent reply	other threads:[~2014-10-28  9:35 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-28  9:35 [PATCH 1/5] drm/radeon: Set TTM_PL_FLAG_TOPDOWN also for RADEON_GEM_CPU_ACCESS BOs Michel Dänzer
2014-10-28  9:35 ` [PATCH 2/5] drm/ttm: Add DRM_MM_SEARCH_BELOW for TTM_PL_FLAG_TOPDOWN Michel Dänzer
2014-10-28  9:35 ` Michel Dänzer [this message]
2014-10-28 11:10   ` [PATCH 3/5] drm/ttm: Use only " Daniel Vetter
2014-10-30  8:41     ` Michel Dänzer
2014-10-30 15:07     ` Thomas Hellstrom
2014-10-31 17:19       ` Daniel Vetter
2014-10-28  9:35 ` [PATCH 4/5] drm/ttm: Add TTM_PL_FLAG_BOTTOMUP Michel Dänzer
2014-10-30  8:36   ` [PATCH 4/4] drm/mm: Remove DRM_MM_SEARCH_BEST Michel Dänzer
2014-10-31 18:10     ` Alex Deucher
2014-11-04  8:47       ` Michel Dänzer
2014-11-04 14:30         ` Alex Deucher
2014-10-28  9:35 ` [PATCH 5/5] drm/radeon: Use TTM_PL_FLAG_BOTTOMUP Michel Dänzer
2014-10-28 10:46 ` [PATCH 1/5] drm/radeon: Set TTM_PL_FLAG_TOPDOWN also for RADEON_GEM_CPU_ACCESS BOs Lauri Kasanen

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