CB_COLOR3_BASE   2241 drivers/gpu/drm/radeon/evergreend.h #define	CB_COLOR3_BASE					0x28d14
CB_COLOR3_BASE     73 drivers/gpu/drm/radeon/r600d.h #define	CB_COLOR3_BASE					0x2804C
CB_COLOR3_BASE    316 drivers/gpu/drm/radeon/rv770d.h #define	CB_COLOR3_BASE					0x2804C