diff --git a/shared-core/radeon_drv.h b/shared-core/radeon_drv.h
index 9f896d24..7f5fb989 100644
--- a/shared-core/radeon_drv.h
+++ b/shared-core/radeon_drv.h
@@ -657,6 +657,8 @@ extern void radeon_driver_free_filp_priv(drm_device_t * dev,
 #	define RADEON_3D_DRAW_IMMD		0x00002900
 #	define RADEON_3D_DRAW_INDX		0x00002A00
 #	define RADEON_3D_LOAD_VBPNTR		0x00002F00
+#	define RADEON_MPEG_IDCT_MACROBLOCK	0x00003000
+#	define RADEON_MPEG_IDCT_MACROBLOCK_REV	0x00003100
 #	define RADEON_3D_CLEAR_ZMASK		0x00003200
 #	define RADEON_3D_CLEAR_HIZ		0x00003700
 #	define RADEON_CNTL_HOSTDATA_BLT		0x00009400