--- mach64-drm-5.6/mach64_drv.c.old	2020-04-24 00:36:27.000000000 +0000
+++ mach64-drm-5.6/mach64_drv.c	2020-08-09 20:03:14.816701578 +0000
@@ -32,6 +32,7 @@
 
 #include <drm/drm_drv.h>
 #include <drm/drm_file.h>
+#include <drm/drm_pci.h>
 
 #include "mach64_drm.h"
 #include "mach64_drv.h"