drm/nv50: support for compression

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nvc0_vram.c b/drivers/gpu/drm/nouveau/nvc0_vram.c
index 6d777a2..67c6ec6 100644
--- a/drivers/gpu/drm/nouveau/nvc0_vram.c
+++ b/drivers/gpu/drm/nouveau/nvc0_vram.c
@@ -78,7 +78,7 @@
 
 	INIT_LIST_HEAD(&mem->regions);
 	mem->dev = dev_priv->dev;
-	mem->memtype = type;
+	mem->memtype = (type & 0xff);
 	mem->size = size;
 
 	mutex_lock(&mm->mutex);