1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright 2004 James Cleverdon, IBM.
5 * Generic APIC sub-arch probe layer.
7 * Hacked for x86-64 by James Cleverdon from i386 architecture code by
8 * Martin Bligh, Andi Kleen, James Bottomley, John Stultz, and
11 #include <linux/thread_info.h>
17 * Check the APIC IDs in bios_cpu_apicid and choose the APIC mode.
19 void __init default_setup_apic_routing(void)
25 for (drv = __apicdrivers; drv < __apicdrivers_end; drv++) {
26 if ((*drv)->probe && (*drv)->probe()) {
29 pr_info("Switched APIC routing to %s.\n",
37 int __init default_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
41 for (drv = __apicdrivers; drv < __apicdrivers_end; drv++) {
42 if ((*drv)->acpi_madt_oem_check(oem_id, oem_table_id)) {
45 pr_info("Setting APIC routing to %s.\n",