ATI_REV_ID_MASK   364 drivers/gpu/drm/radeon/sumod.h #       define ATI_REV_ID_MASK                          (0xf << 28)
ATI_REV_ID_MASK   220 drivers/gpu/drm/radeon/trinityd.h #       define ATI_REV_ID_MASK                          (0xf << 28)