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); 37extern void irq_force_complete_move(int); 38#endif 39 40extern void (*x86_platform_ipi_callback)(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 50extern void init_ISA_irqs(void); 51 52#endif /* _ASM_X86_IRQ_H */ 53