uint32_t
cpu_get_mid(u_int cpu_impl)
{
switch (cpu_impl) {
case CPU_IMPL_SPARC64:
case CPU_IMPL_SPARC64V:
case CPU_IMPL_ULTRASPARCI:
case CPU_IMPL_ULTRASPARCII:
case CPU_IMPL_ULTRASPARCIIi:
case CPU_IMPL_ULTRASPARCIIe:
return (UPA_CR_GET_MID(ldxa(0, ASI_UPA_CONFIG_REG)));
case CPU_IMPL_ULTRASPARCIII:
case CPU_IMPL_ULTRASPARCIIIp:
return (FIREPLANE_CR_GET_AID(ldxa(AA_FIREPLANE_CONFIG,
ASI_FIREPLANE_CONFIG_REG)));
case CPU_IMPL_ULTRASPARCIIIi:
case CPU_IMPL_ULTRASPARCIIIip:
return (JBUS_CR_GET_JID(ldxa(0, ASI_JBUS_CONFIG_REG)));
case CPU_IMPL_ULTRASPARCIV:
case CPU_IMPL_ULTRASPARCIVp:
return (INTR_ID_GET_ID(ldxa(AA_INTR_ID, ASI_INTR_ID)));
default:
return (0);
}
}
static void
tlb_init(void)
{
phandle_t child;
phandle_t root;
char buf[128];
u_int bootcpu;
u_int cpu;
bootcpu = UPA_CR_GET_MID(ldxa(0, ASI_UPA_CONFIG_REG));
if ((root = OF_peer(0)) == -1)
panic("main: OF_peer");
for (child = OF_child(root); child != 0; child = OF_peer(child)) {
if (child == -1)
panic("main: OF_child");
if (OF_getprop(child, "device_type", buf, sizeof(buf)) > 0 &&
strcmp(buf, "cpu") == 0) {
if (OF_getprop(child, "upa-portid", &cpu,
sizeof(cpu)) == -1 && OF_getprop(child, "portid",
&cpu, sizeof(cpu)) == -1)
panic("main: OF_getprop");
if (cpu == bootcpu)
break;
}
}
if (cpu != bootcpu)
panic("init_tlb: no node for bootcpu?!?!");
if (OF_getprop(child, "#dtlb-entries", &dtlb_slot_max,
sizeof(dtlb_slot_max)) == -1 ||
OF_getprop(child, "#itlb-entries", &itlb_slot_max,
sizeof(itlb_slot_max)) == -1)
panic("init_tlb: OF_getprop");
dtlb_store = malloc(dtlb_slot_max * sizeof(*dtlb_store));
itlb_store = malloc(itlb_slot_max * sizeof(*itlb_store));
if (dtlb_store == NULL || itlb_store == NULL)
panic("init_tlb: malloc");
}
