/**
* 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);
}
