From: Dave Airlie airlied@redhat.com
Signed-off-by: Dave Airlie airlied@redhat.com --- 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;