PACKET3_SET_CTL_CONST_START 1686 drivers/gpu/drm/radeon/evergreend.h #define		PACKET3_SET_CTL_CONST_START			0x0003cff0
PACKET3_SET_CTL_CONST_START 1290 drivers/gpu/drm/radeon/nid.h #define		PACKET3_SET_CTL_CONST_START			0x0003cff0