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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef _ASM_IRQ_H
2#define _ASM_IRQ_H
3
4/*
5 * linux/include/asm/irq.h
6 *
7 * (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
8 *
9 * IRQ/IPI changes taken from work by Thomas Radke
10 * <tomsoft@informatik.tu-chemnitz.de>
11 */
12
Linus Torvalds1da177e2005-04-16 15:20:36 -070013#include <linux/sched.h>
14/* include comes from machine specific directory */
15#include "irq_vectors.h"
16#include <asm/thread_info.h>
17
18static __inline__ int irq_canonicalize(int irq)
19{
20 return ((irq == 2) ? 9 : irq);
21}
22
Linus Torvalds1da177e2005-04-16 15:20:36 -070023#ifdef CONFIG_X86_LOCAL_APIC
24# define ARCH_HAS_NMI_WATCHDOG /* See include/linux/nmi.h */
25#endif
26
27#ifdef CONFIG_4KSTACKS
28 extern void irq_ctx_init(int cpu);
Li Shaohuae1367da2005-06-25 14:54:56 -070029 extern void irq_ctx_exit(int cpu);
Linus Torvalds1da177e2005-04-16 15:20:36 -070030# define __ARCH_HAS_DO_SOFTIRQ
31#else
32# define irq_ctx_init(cpu) do { } while (0)
Li Shaohuae1367da2005-06-25 14:54:56 -070033# define irq_ctx_exit(cpu) do { } while (0)
Linus Torvalds1da177e2005-04-16 15:20:36 -070034#endif
35
36#ifdef CONFIG_IRQBALANCE
37extern int irqbalance_disable(char *str);
38#endif
39
Zwane Mwaikambof3705132005-06-25 14:54:50 -070040#ifdef CONFIG_HOTPLUG_CPU
41extern void fixup_irqs(cpumask_t map);
42#endif
43
Jeremy Fitzhardinge5ead97c2007-07-17 18:37:04 -070044unsigned int do_IRQ(struct pt_regs *regs);
Rusty Russelld3561b72006-12-07 02:14:07 +010045void init_IRQ(void);
46void __init native_init_IRQ(void);
47
Rusty Russelldbeb2be2007-10-19 20:35:03 +020048/* Interrupt vector management */
49extern DECLARE_BITMAP(used_vectors, NR_VECTORS);
50
Linus Torvalds1da177e2005-04-16 15:20:36 -070051#endif /* _ASM_IRQ_H */