예제 #1
0
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();
}
예제 #3
0
파일: boot.c 프로젝트: a2k2/xen-unstable
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;
}