2 * Copyright 2004 James Cleverdon, IBM.
3 * Subject to the GNU Public License, v.2
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/threads.h>
12 #include <linux/cpumask.h>
13 #include <linux/string.h>
14 #include <linux/module.h>
15 #include <linux/kernel.h>
16 #include <linux/ctype.h>
17 #include <linux/init.h>
18 #include <linux/hardirq.h>
19 #include <linux/dmar.h>
24 #include <asm/setup.h>
27 * Check the APIC IDs in bios_cpu_apicid and choose the APIC mode.
29 void __init
default_setup_apic_routing(void)
35 for (drv
= __apicdrivers
; drv
< __apicdrivers_end
; drv
++) {
36 if ((*drv
)->probe
&& (*drv
)->probe()) {
39 pr_info("Switched APIC routing to %s.\n",
46 if (x86_platform
.apic_post_init
)
47 x86_platform
.apic_post_init();
50 /* Same for both flat and physical. */
52 void apic_send_IPI_self(int vector
)
54 __default_send_IPI_shortcut(APIC_DEST_SELF
, vector
, APIC_DEST_PHYSICAL
);
57 int __init
default_acpi_madt_oem_check(char *oem_id
, char *oem_table_id
)
61 for (drv
= __apicdrivers
; drv
< __apicdrivers_end
; drv
++) {
62 if ((*drv
)->acpi_madt_oem_check(oem_id
, oem_table_id
)) {
65 pr_info("Setting APIC routing to %s.\n",