/** * Helper function for implementing BHND_BUS_IS_REGION_VALID(). * * This implementation assumes that port and region numbers are 0-indexed and * are allocated non-sparsely, using BHND_BUS_GET_PORT_COUNT() and * BHND_BUS_GET_REGION_COUNT() to determine if @p port and @p region fall * within the defined range. */ bool bhnd_generic_is_region_valid(device_t dev, device_t child, bhnd_port_type type, u_int port, u_int region) { if (port >= bhnd_get_port_count(child, type)) return (false); if (region >= bhnd_get_region_count(child, type, port)) return (false); return (true); }
/* Initialize memory state for all chipc port regions */ static int chipc_init_rman(struct chipc_softc *sc) { u_int num_ports; int error; /* Port types for which we'll register chipc_region mappings */ bhnd_port_type types[] = { BHND_PORT_DEVICE }; /* Initialize resource manager */ sc->mem_rman.rm_start = 0; sc->mem_rman.rm_end = BUS_SPACE_MAXADDR; sc->mem_rman.rm_type = RMAN_ARRAY; sc->mem_rman.rm_descr = "ChipCommon Device Memory"; if ((error = rman_init(&sc->mem_rman))) { device_printf(sc->dev, "could not initialize mem_rman: %d\n", error); return (error); } /* Populate per-port-region state */ for (u_int i = 0; i < nitems(types); i++) { num_ports = bhnd_get_port_count(sc->dev, types[i]); for (u_int port = 0; port < num_ports; port++) { error = chipc_rman_init_regions(sc, types[i], port); if (error) { device_printf(sc->dev, "region init failed for %s%u: %d\n", bhnd_port_type_name(types[i]), port, error); goto failed; } } } return (0); failed: chipc_free_rman(sc); return (error); }