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authorDavid S. Miller <davem@davemloft.net>2010-04-11 17:53:53 -0400
committerDavid S. Miller <davem@davemloft.net>2010-04-11 17:53:53 -0400
commit871039f02f8ec4ab2e5e9010718caa8e085786f1 (patch)
treef0d2b3127fc48c862967d68c46c2d46668137515 /arch/x86/kernel/irqinit.c
parente4077e018b5ead3de9951fc01d8bf12eeeeeefed (diff)
parent4a1032faac94ebbf647460ae3e06fc21146eb280 (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts: drivers/net/stmmac/stmmac_main.c drivers/net/wireless/wl12xx/wl1271_cmd.c drivers/net/wireless/wl12xx/wl1271_main.c drivers/net/wireless/wl12xx/wl1271_spi.c net/core/ethtool.c net/mac80211/scan.c
Diffstat (limited to 'arch/x86/kernel/irqinit.c')
-rw-r--r--arch/x86/kernel/irqinit.c23
1 files changed, 22 insertions, 1 deletions
diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c
index ef257fc2921b..0ed2d300cd46 100644
--- a/arch/x86/kernel/irqinit.c
+++ b/arch/x86/kernel/irqinit.c
@@ -5,7 +5,6 @@
5#include <linux/ioport.h> 5#include <linux/ioport.h>
6#include <linux/interrupt.h> 6#include <linux/interrupt.h>
7#include <linux/timex.h> 7#include <linux/timex.h>
8#include <linux/slab.h>
9#include <linux/random.h> 8#include <linux/random.h>
10#include <linux/kprobes.h> 9#include <linux/kprobes.h>
11#include <linux/init.h> 10#include <linux/init.h>
@@ -141,6 +140,28 @@ void __init init_IRQ(void)
141 x86_init.irqs.intr_init(); 140 x86_init.irqs.intr_init();
142} 141}
143 142
143/*
144 * Setup the vector to irq mappings.
145 */
146void setup_vector_irq(int cpu)
147{
148#ifndef CONFIG_X86_IO_APIC
149 int irq;
150
151 /*
152 * On most of the platforms, legacy PIC delivers the interrupts on the
153 * boot cpu. But there are certain platforms where PIC interrupts are
154 * delivered to multiple cpu's. If the legacy IRQ is handled by the
155 * legacy PIC, for the new cpu that is coming online, setup the static
156 * legacy vector to irq mapping:
157 */
158 for (irq = 0; irq < legacy_pic->nr_legacy_irqs; irq++)
159 per_cpu(vector_irq, cpu)[IRQ0_VECTOR + irq] = irq;
160#endif
161
162 __setup_vector_irq(cpu);
163}
164
144static void __init smp_intr_init(void) 165static void __init smp_intr_init(void)
145{ 166{
146#ifdef CONFIG_SMP 167#ifdef CONFIG_SMP