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authorIngo Molnar <mingo@elte.hu>2009-02-17 14:35:16 -0500
committerIngo Molnar <mingo@elte.hu>2009-02-17 14:35:47 -0500
commit2a05180fe2e5b414f0cb2ccfc80e6c90563e3c67 (patch)
tree5c14afab81ee44b44ec7ff7faf08fee2c165bf50 /arch/x86/kernel/apic/probe_64.c
parentf62bae5009c1ba596cd475cafbc83e0570a36e26 (diff)
x86, apic: move remaining APIC drivers to arch/x86/kernel/apic/*
Move the 32-bit extended-arch APIC drivers to arch/x86/kernel/apic/ too, and rename apic_64.c to probe_64.c. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/apic/probe_64.c')
-rw-r--r--arch/x86/kernel/apic/probe_64.c89
1 files changed, 89 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic/probe_64.c b/arch/x86/kernel/apic/probe_64.c
new file mode 100644
index 000000000000..70935dd904db
--- /dev/null
+++ b/arch/x86/kernel/apic/probe_64.c
@@ -0,0 +1,89 @@
1/*
2 * Copyright 2004 James Cleverdon, IBM.
3 * Subject to the GNU Public License, v.2
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/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>
20
21#include <asm/smp.h>
22#include <asm/apic.h>
23#include <asm/ipi.h>
24#include <asm/setup.h>
25
26extern struct apic apic_flat;
27extern struct apic apic_physflat;
28extern struct apic apic_x2xpic_uv_x;
29extern struct apic apic_x2apic_phys;
30extern struct apic apic_x2apic_cluster;
31
32struct apic __read_mostly *apic = &apic_flat;
33EXPORT_SYMBOL_GPL(apic);
34
35static struct apic *apic_probe[] __initdata = {
36#ifdef CONFIG_X86_UV
37 &apic_x2apic_uv_x,
38#endif
39#ifdef CONFIG_X86_X2APIC
40 &apic_x2apic_phys,
41 &apic_x2apic_cluster,
42#endif
43 &apic_physflat,
44 NULL,
45};
46
47/*
48 * Check the APIC IDs in bios_cpu_apicid and choose the APIC mode.
49 */
50void __init default_setup_apic_routing(void)
51{
52#ifdef CONFIG_X86_X2APIC
53 if (apic == &apic_x2apic_phys || apic == &apic_x2apic_cluster) {
54 if (!intr_remapping_enabled)
55 apic = &apic_flat;
56 }
57#endif
58
59 if (apic == &apic_flat) {
60 if (max_physical_apicid >= 8)
61 apic = &apic_physflat;
62 printk(KERN_INFO "Setting APIC routing to %s\n", apic->name);
63 }
64
65 if (x86_quirks->update_apic)
66 x86_quirks->update_apic();
67}
68
69/* Same for both flat and physical. */
70
71void apic_send_IPI_self(int vector)
72{
73 __default_send_IPI_shortcut(APIC_DEST_SELF, vector, APIC_DEST_PHYSICAL);
74}
75
76int __init default_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
77{
78 int i;
79
80 for (i = 0; apic_probe[i]; ++i) {
81 if (apic_probe[i]->acpi_madt_oem_check(oem_id, oem_table_id)) {
82 apic = apic_probe[i];
83 printk(KERN_INFO "Setting APIC routing to %s.\n",
84 apic->name);
85 return 1;
86 }
87 }
88 return 0;
89}