--- a/drivers/gpu/drm/radeon/radeon_ttm.c	2020-01-09 17:25:43.790673516 -0500
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c	2020-01-09 17:26:11.909557848 -0500
@@ -795,7 +795,7 @@ int radeon_ttm_init(struct radeon_device
 			       &radeon_bo_driver,
 			       rdev->ddev->anon_inode->i_mapping,
 			       rdev->ddev->vma_offset_manager,
-			       dma_addressing_limited(&rdev->pdev->dev));
+			       true);	//dma_addressing_limited(&rdev->pdev->dev));
 	if (r) {
 		DRM_ERROR("failed initializing buffer object driver(%d).\n", r);
 		return r;