1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright 2004 James Cleverdon, IBM.
4 *
5 * Generic APIC sub-arch probe layer.
6 *
7 * Hacked for x86-64 by James Cleverdon from i386 architecture code by
8 * Martin Bligh, Andi Kleen, James Bottomley, John Stultz, and
9 * James Cleverdon.
10 */
11#include <linux/thread_info.h>
12#include <asm/apic.h>
13
14#include "local.h"
15
16/* Select the appropriate APIC driver */
17void __init x86_64_probe_apic(void)
18{
19 struct apic **drv;
20
21 enable_IR_x2apic();
22
23 for (drv = __apicdrivers; drv < __apicdrivers_end; drv++) {
24 if ((*drv)->probe && (*drv)->probe()) {
25 apic_install_driver(driver: *drv);
26 break;
27 }
28 }
29}
30
31int __init default_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
32{
33 struct apic **drv;
34
35 for (drv = __apicdrivers; drv < __apicdrivers_end; drv++) {
36 if ((*drv)->acpi_madt_oem_check(oem_id, oem_table_id)) {
37 apic_install_driver(driver: *drv);
38 return 1;
39 }
40 }
41 return 0;
42}
43