CHIP_EXTENT
#define CHIP_EXTENT(v) (((struct p4032_config *)(v))->ac_io_ex)
#define CHIP_EXTENT(v) (((struct p4032_config *)(v))->ac_mem_ex)
#define CHIP_EXTENT(v) (((struct p5064_config *)(v))->ac_io_ex)
#define CHIP_EXTENT(v) (((struct p5064_config *)(v))->ac_mem_ex)
#define CHIP_EXTENT(v) (((struct p6032_config *)(v))->ac_io_ex)
#define CHIP_EXTENT(v) (((struct p6032_config *)(v))->ac_mem_ex)
#define CHIP_EXTENT(v) (((struct p4032_config *)(v))->ac_io_ex)
#define CHIP_EXTENT(v) (((struct gdium_config *)(v))->gc_io_ex)
#define CHIP_EXTENT(v) (loongson_io_ex)
#define CHIP_EXTENT(v) (((struct malta_config *)(v))->mc_io_ex)
#define CHIP_EXTENT(v) (((struct malta_config *)(v))->mc_mem_ex)
#define CHIP_EXTENT(v) (((struct mipssim_config *)(v))->mc_io_ex)
#define CHIP_EXTENT /* defined */
#define CHIP_EXTENT(v) (((struct rmixl_config *)(v))->rc_iobus_ex)
#define CHIP_EXTENT(v) (((struct rmixl_config *)(v))->rc_obio_eb_ex)
#define CHIP_EXTENT(v) (((struct rmixl_config *)(v))->rc_obio_el_ex)
#define CHIP_EXTENT(v) (((struct rmixl_config *)(v))->rc_pci_cfg_ex)
#define CHIP_EXTENT(v) (((struct rmixl_config *)(v))->rc_pci_ecfg_ex)
#define CHIP_EXTENT(v) (((struct rmixl_config *)(v))->rc_pci_io_ex)
#define CHIP_EXTENT(v) (((struct rmixl_config *)(v))->rc_pci_mem_ex)
#define CHIP_EXTENT(v) (((struct sbbrz_softc *)(v))->sc_io_ex)
#define CHIP_EXTENT(v) (((struct sbbrz_softc *)(v))->sc_mem_ex)