void __init default_setup_apic_routing(void)
{
int version = apic_version[boot_cpu_physical_apicid];
if (num_possible_cpus() > 8) {
switch (boot_cpu_data.x86_vendor) {
case X86_VENDOR_INTEL:
if (!APIC_XAPIC(version)) {
def_to_bigsmp = 0;
break;
}
/* If P4 and above fall through */
case X86_VENDOR_AMD:
def_to_bigsmp = 1;
}
}
#ifdef CONFIG_X86_BIGSMP
/*
* This is used to switch to bigsmp mode when
* - There is no apic= option specified by the user
* - generic_apic_probe() has chosen apic_default as the sub_arch
* - we find more than 8 CPUs in acpi LAPIC listing with xAPIC support
*/
if (!cmdline_apic && apic == &apic_default)
generic_bigsmp_probe();
#endif
if (apic->setup_apic_routing)
apic->setup_apic_routing();
if (x86_platform.apic_post_init)
x86_platform.apic_post_init();
}
void __init default_setup_apic_routing(void)
{
int version = apic_version[boot_cpu_physical_apicid];
if (num_possible_cpus() > 8) {
switch (boot_cpu_data.x86_vendor) {
case X86_VENDOR_INTEL:
if (!APIC_XAPIC(version)) {
def_to_bigsmp = 0;
break;
}
case X86_VENDOR_AMD:
def_to_bigsmp = 1;
}
}
#ifdef CONFIG_X86_BIGSMP
if (!cmdline_apic && apic == &apic_default)
generic_bigsmp_probe();
#endif
if (apic->setup_apic_routing)
apic->setup_apic_routing();
}
static void __init acpi_process_madt(void)
{
#ifdef CONFIG_X86_LOCAL_APIC
int error;
if (!acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) {
/*
* Parse MADT LAPIC entries
*/
error = acpi_parse_madt_lapic_entries();
if (!error) {
acpi_lapic = 1;
generic_bigsmp_probe();
/*
* Parse MADT IO-APIC entries
*/
error = acpi_parse_madt_ioapic_entries();
if (!error) {
acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC;
acpi_irq_balance_set(NULL);
acpi_ioapic = 1;
smp_found_config = 1;
clustered_apic_check();
}
}
if (error == -EINVAL) {
/*
* Dell Precision Workstation 410, 610 come here.
*/
printk(KERN_ERR PREFIX
"Invalid BIOS MADT, disabling ACPI\n");
disable_acpi();
}
}
#endif
return;
}