diff --git a/drivers/gpu/drm/nouveau/nouveau_calc.c b/drivers/gpu/drm/nouveau/nouveau_calc.c
index dad96cc..37271ae 100644
--- a/drivers/gpu/drm/nouveau/nouveau_calc.c
+++ b/drivers/gpu/drm/nouveau/nouveau_calc.c
@@ -238,7 +238,7 @@ nv20_update_arb(int *burst, int *lwm)
 {
 	unsigned int fifo_size, burst_size, graphics_lwm;
 
-	fifo_size = 2048;
+	fifo_size = 4096;
 	burst_size = 512;
 	graphics_lwm = fifo_size - burst_size;