diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.c
index 9795896763610bf9214804ababf5cfdb6cda36b6..edd4b867a1e22c7458a88b037b2e21b4baff7548 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.c
@@ -1410,6 +1410,8 @@ gf100_grctx_generate_main(struct gf100_gr_chan *chan)
 		grctx->r408840(gr);
 	if (grctx->r419c0c)
 		grctx->r419c0c(gr);
+
+	gf100_gr_wait_idle(gr);
 }
 
 #define CB_RESERVED 0x80000