diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
index d937324..68600c1 100644
--- a/drivers/gpu/drm/radeon/r420.c
+++ b/drivers/gpu/drm/radeon/r420.c
@@ -45,7 +45,9 @@ int r420_mc_init(struct radeon_device *rdev)
 	int r;
 
 	/* Setup GPU memory space */
-	rdev->mc.vram_location = 0xFFFFFFFFUL;
+	/* attempt to put at same address as on CPU side */
+	rdev->mc.vram_location = rdev->mc.aper_base;
+	//rdev->mc.vram_location = 0xFFFFFFFFUL;
 	rdev->mc.gtt_location = 0xFFFFFFFFUL;
 	if (rdev->flags & RADEON_IS_AGP) {
 		r = radeon_agp_init(rdev);