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Linux kernel mirror (for testing)
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kernel
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linux
1#ifndef _ASM_X86_IRQ_H
2#define _ASM_X86_IRQ_H
3/*
4 * (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
5 *
6 * IRQ/IPI changes taken from work by Thomas Radke
7 * <tomsoft@informatik.tu-chemnitz.de>
8 */
9
10#include <asm/apicdef.h>
11#include <asm/irq_vectors.h>
12
13static inline int irq_canonicalize(int irq)
14{
15 return ((irq == 2) ? 9 : irq);
16}
17
18#ifdef CONFIG_X86_LOCAL_APIC
19# define ARCH_HAS_NMI_WATCHDOG
20#endif
21
22#ifdef CONFIG_4KSTACKS
23 extern void irq_ctx_init(int cpu);
24 extern void irq_ctx_exit(int cpu);
25# define __ARCH_HAS_DO_SOFTIRQ
26#else
27# define irq_ctx_init(cpu) do { } while (0)
28# define irq_ctx_exit(cpu) do { } while (0)
29# ifdef CONFIG_X86_64
30# define __ARCH_HAS_DO_SOFTIRQ
31# endif
32#endif
33
34#ifdef CONFIG_HOTPLUG_CPU
35#include <linux/cpumask.h>
36extern void fixup_irqs(void);
37#endif
38
39extern void (*generic_interrupt_extension)(void);
40extern void init_IRQ(void);
41extern void native_init_IRQ(void);
42extern bool handle_irq(unsigned irq, struct pt_regs *regs);
43
44extern unsigned int do_IRQ(struct pt_regs *regs);
45
46/* Interrupt vector management */
47extern DECLARE_BITMAP(used_vectors, NR_VECTORS);
48extern int vector_used_by_percpu_irq(unsigned int vector);
49
50#endif /* _ASM_X86_IRQ_H */