From: Dave Airlie <airlied@xxxxxxxxxx>
Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 887483b..3142d70 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -1111,6 +1111,8 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
DRM_ERROR("Failed initializing VRAM heap.\n");
return r;
}
+
+ ttm_io_reserve_memtype_wc(adev->mc.aper_base, adev->mc.aper_base + adev->mc.aper_size);
/* Change the size here instead of the init above so only lpfn is affected */
amdgpu_ttm_set_active_vram_size(adev, adev->mc.visible_vram_size);
@@ -1203,6 +1205,7 @@ void amdgpu_ttm_fini(struct amdgpu_device *adev)
ttm_bo_clean_mm(&adev->mman.bdev, AMDGPU_PL_GWS);
ttm_bo_clean_mm(&adev->mman.bdev, AMDGPU_PL_OA);
ttm_bo_device_release(&adev->mman.bdev);
+ ttm_io_free_memtype(adev->mc.aper_base, adev->mc.aper_base + adev->mc.aper_size);
amdgpu_gart_fini(adev);
amdgpu_ttm_global_fini(adev);
adev->mman.initialized = false;
--
2.5.5
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