[PATCH 6/6] drm/amdgpu: try to make kernel allocations USWC

[ckoenig.leichtzumerken@xxxxxxxxx (Christian König)]

Not 100% sure if that is a good idea or not. In theory only the writeback BO
should be read most of the time, but who knows?

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index de990bdcdd6c..794c874309d0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -255,7 +255,8 @@ int amdgpu_bo_create_reserved(struct amdgpu_device *adev,
 	bp.byte_align = align;
 	bp.domain = domain;
 	bp.flags = AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED |
-		AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS;
+		AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS |
+		AMDGPU_GEM_CREATE_CPU_GTT_USWC;
 	bp.type = ttm_bo_type_kernel;
 	bp.resv = NULL;
 
-- 
2.17.1