int
mmu_init(void)
{
if (CPU_ISSUN4 || CPU_ISSUN4C) {
pmap_map = pmap_map4;
pmap_extract = pmap_extract4;
if (CPU_ISSUN4) {
/* Find out if we're on a 3-lvl sun4 MMU. */
struct idprom *idp = prom_getidprom();
if (idp->id_machine == ID_SUN4_400)
sun4_mmu3l = 1;
}
/*
* XXX - we just guess which MMU cookies are free:
* region 0 maps [0-16MB]
* segment 0-16 map [0-4MB]
* the PROM mappings use high-valued cookies.
*/
rcookie = 2;
scookie = 17;
} else if (CPU_ISSUN4M || CPU_ISSUN4D) {
char buf[32];
pmap_map = pmap_map_srmmu;
pmap_extract = pmap_extract_srmmu;
snprintf(buf, sizeof buf, "obmem %lx L!", (u_long)&obmem);
prom_interpret(buf);
} else
return (ENOTSUP);
return (0);
}
/*
* Attach the mainbus.
*
* Our main job is to attach the CPU (the root node we got in configure())
* and iterate down the list of `mainbus devices' (children of that node).
* We also record the `node id' of the default frame buffer, if any.
*/
static void
mainbus_attach(device_t parent, device_t dev, void *aux)
{
extern struct sparc_bus_dma_tag mainbus_dma_tag;
extern struct sparc_bus_space_tag mainbus_space_tag;
struct mainbus_attach_args ma;
char sbuf[32];
const char *const *ssp, *sp = NULL;
char *c;
int node0, node, rv, i;
static const char *const openboot_special[] = {
/* ignore these (end with NULL) */
/*
* These are _root_ devices to ignore. Others must be handled
* elsewhere.
*/
"virtual-memory",
"aliases",
"memory",
"openprom",
"options",
"packages",
"chosen",
NULL
};
if (OF_getprop(findroot(), "banner-name", machine_banner,
sizeof machine_banner) < 0)
i = 0;
else {
i = 1;
if (((c = strchr(machine_banner, '(')) != NULL) &&
c != &machine_banner[0]) {
while (*c == '(' || *c == ' ') {
*c = '\0';
c--;
}
}
}
OF_getprop(findroot(), "name", machine_model, sizeof machine_model);
prom_getidprom();
if (i)
aprint_normal(": %s (%s): hostid %lx\n", machine_model,
machine_banner, hostid);
else
aprint_normal(": %s: hostid %lx\n", machine_model, hostid);
aprint_naive("\n");
/*
* Locate and configure the ``early'' devices. These must be
* configured before we can do the rest. For instance, the
* EEPROM contains the Ethernet address for the LANCE chip.
* If the device cannot be located or configured, panic.
*/
if (sparc_ncpus == 0)
panic("None of the CPUs found");
/*
* Init static interrupt eventcounters
*/
for (i = 0; i < __arraycount(intr_evcnts); i++)
evcnt_attach_static(&intr_evcnts[i]);
node = findroot();
/* first early device to be configured is the CPU */
for (node = OF_child(node); node; node = OF_peer(node)) {
if (OF_getprop(node, "device_type", sbuf, sizeof(sbuf)) <= 0)
continue;
if (strcmp(sbuf, "cpu") != 0)
continue;
memset(&ma, 0, sizeof(ma));
ma.ma_bustag = &mainbus_space_tag;
ma.ma_dmatag = &mainbus_dma_tag;
ma.ma_node = node;
ma.ma_name = "cpu";
config_found(dev, &ma, mbprint);
}
node = findroot(); /* re-init root node */
/* Find the "options" node */
node0 = OF_child(node);
/*
* Configure the devices, in PROM order. Skip
* PROM entries that are not for devices, or which must be
* done before we get here.
*/
for (node = node0; node; node = OF_peer(node)) {
int portid;
DPRINTF(ACDB_PROBE, ("Node: %x", node));
if ((OF_getprop(node, "device_type", sbuf, sizeof(sbuf)) > 0) &&
strcmp(sbuf, "cpu") == 0)
continue;
OF_getprop(node, "name", sbuf, sizeof(sbuf));
DPRINTF(ACDB_PROBE, (" name %s\n", sbuf));
for (ssp = openboot_special; (sp = *ssp) != NULL; ssp++)
if (strcmp(sbuf, sp) == 0)
break;
if (sp != NULL)
continue; /* an "early" device already configured */
memset(&ma, 0, sizeof ma);
ma.ma_bustag = &mainbus_space_tag;
ma.ma_dmatag = &mainbus_dma_tag;
ma.ma_name = sbuf;
ma.ma_node = node;
if (OF_getprop(node, "upa-portid", &portid, sizeof(portid)) !=
sizeof(portid) &&
OF_getprop(node, "portid", &portid, sizeof(portid)) !=
sizeof(portid))
portid = -1;
ma.ma_upaid = portid;
if (prom_getprop(node, "reg", sizeof(*ma.ma_reg),
&ma.ma_nreg, &ma.ma_reg) != 0)
continue;
#ifdef DEBUG
if (autoconf_debug & ACDB_PROBE) {
if (ma.ma_nreg)
printf(" reg %08lx.%08lx\n",
(long)ma.ma_reg->ur_paddr,
(long)ma.ma_reg->ur_len);
else
printf(" no reg\n");
}
#endif
rv = prom_getprop(node, "interrupts", sizeof(*ma.ma_interrupts),
&ma.ma_ninterrupts, &ma.ma_interrupts);
if (rv != 0 && rv != ENOENT) {
free(ma.ma_reg, M_DEVBUF);
continue;
}
#ifdef DEBUG
if (autoconf_debug & ACDB_PROBE) {
if (ma.ma_interrupts)
printf(" interrupts %08x\n", *ma.ma_interrupts);
else
printf(" no interrupts\n");
}
#endif
rv = prom_getprop(node, "address", sizeof(*ma.ma_address),
&ma.ma_naddress, &ma.ma_address);
if (rv != 0 && rv != ENOENT) {
free(ma.ma_reg, M_DEVBUF);
if (ma.ma_ninterrupts)
free(ma.ma_interrupts, M_DEVBUF);
continue;
}
#ifdef DEBUG
if (autoconf_debug & ACDB_PROBE) {
if (ma.ma_naddress)
printf(" address %08x\n", *ma.ma_address);
else
printf(" no address\n");
}
#endif
(void) config_found(dev, (void *)&ma, mbprint);
free(ma.ma_reg, M_DEVBUF);
if (ma.ma_ninterrupts)
free(ma.ma_interrupts, M_DEVBUF);
if (ma.ma_naddress)
free(ma.ma_address, M_DEVBUF);
}
/* Try to attach PROM console */
memset(&ma, 0, sizeof ma);
ma.ma_name = "pcons";
(void) config_found(dev, (void *)&ma, mbprint);
}
