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From 2fffe8a779e81d0385d03270ee024bc3fbe1979a Mon Sep 17 00:00:00 2001
From: "monk.liu" <monk.liu@amd.com>
Date: Thu, 22 Oct 2015 11:21:52 +0800
Subject: [PATCH 0764/4131] drm/amdgpu: improve GTT BO alloc speed in OGL
original we use ttm_dma path to allocate GTT bo, which is too much
slower than the path of ttm_pool, in most cases.
Change-Id: I3f634d826139f4df074e68ec5fc0477b1c9126cc
Signed-off-by: monk.liu <Monk.Liu@amd.com>
Reviewed-by: Jammy Zhou <jammy.zhou@amd.com>
Conflicts:
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 14 --------------
1 file changed, 14 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 0d70747..9e15cc3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -950,13 +950,6 @@ static int amdgpu_ttm_tt_populate(struct ttm_tt *ttm)
goto trace_mappings;
}
-#ifdef CONFIG_SWIOTLB
- if (swiotlb_nr_tbl()) {
- r = ttm_dma_populate(>t->ttm, adev->dev);
- goto trace_mappings;
- }
-#endif
-
r = ttm_populate_and_map_pages(adev->dev, >t->ttm);
trace_mappings:
if (likely(!r))
@@ -983,13 +976,6 @@ static void amdgpu_ttm_tt_unpopulate(struct ttm_tt *ttm)
amdgpu_trace_dma_unmap(ttm);
-#ifdef CONFIG_SWIOTLB
- if (swiotlb_nr_tbl()) {
- ttm_dma_unpopulate(>t->ttm, adev->dev);
- return;
- }
-#endif
-
ttm_unmap_and_unpopulate_pages(adev->dev, >t->ttm);
}
--
2.7.4
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