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/init.h>
15 #include <linux/kernel.h>
16 #include <linux/ctype.h>
17 #include <linux/hardirq.h>
18 #include <linux/dmar.h>
23 #include <asm/setup.h>
26 * Check the APIC IDs in bios_cpu_apicid and choose the APIC mode.
28 void __init default_setup_apic_routing(void)
34 for (drv = __apicdrivers; drv < __apicdrivers_end; drv++) {
35 if ((*drv)->probe && (*drv)->probe()) {
38 pr_info("Switched APIC routing to %s.\n",
45 if (x86_platform.apic_post_init)
46 x86_platform.apic_post_init();
49 /* Same for both flat and physical. */
51 void apic_send_IPI_self(int vector)
53 __default_send_IPI_shortcut(APIC_DEST_SELF, vector, APIC_DEST_PHYSICAL);
56 int __init default_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
60 for (drv = __apicdrivers; drv < __apicdrivers_end; drv++) {
61 if ((*drv)->acpi_madt_oem_check(oem_id, oem_table_id)) {
64 pr_info("Setting APIC routing to %s.\n",