diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c
index 0f3384aa6134c920b99f53637bacbe1fec8dcae4..c6c3e6ceb24e9878da076cc0c2ef43acec84c9b0 100644
--- a/drivers/gpu/drm/nouveau/nv50_display.c
+++ b/drivers/gpu/drm/nouveau/nv50_display.c
@@ -24,6 +24,7 @@
  *
  */
 
+#define NOUVEAU_DMA_DEBUG (nouveau_reg_debug & NOUVEAU_REG_DEBUG_EVO)
 #include "nv50_display.h"
 #include "nouveau_crtc.h"
 #include "nouveau_encoder.h"