--- zzzz-none-000/linux-2.6.39.4/drivers/gpu/drm/radeon/nid.h	2011-08-03 19:43:28.000000000 +0000
+++ puma6-arm-6490-729/linux-2.6.39.4/drivers/gpu/drm/radeon/nid.h	2021-11-10 13:23:10.000000000 +0000
@@ -136,8 +136,6 @@
 #define	HDP_NONSURFACE_INFO				0x2C08
 #define	HDP_NONSURFACE_SIZE				0x2C0C
 #define HDP_ADDR_CONFIG  				0x2F48
-#define HDP_MISC_CNTL					0x2F4C
-#define 	HDP_FLUSH_INVALIDATE_CACHE			(1 << 0)
 
 #define	CC_SYS_RB_BACKEND_DISABLE			0x3F88
 #define	GC_USER_SYS_RB_BACKEND_DISABLE			0x3F8C