text: #ifndef _ASM_X86_IRQ_H
  #define _ASM_X86_IRQ_H
  /*
   *	(C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
   *
   *	IRQ/IPI changes taken from work by Thomas Radke
   *	<tomsoft@informatik.tu-chemnitz.de>
   */
  
  #include <asm/apicdef.h>
  #include <asm/irq_vectors.h>
  
  static inline int irq_canonicalize(int irq)
  {
  	return ((irq == 2) ? 9 : irq);
  }
  
  #ifdef CONFIG_X86_32
  extern void irq_ctx_init(int cpu);
  #else
  # define irq_ctx_init(cpu) do { } while (0)
  #endif
  
  #define __ARCH_HAS_DO_SOFTIRQ
  
  struct irq_desc;
  
  #ifdef CONFIG_HOTPLUG_CPU
  #include <linux/cpumask.h>
  extern int check_irq_vectors_for_cpu_disable(void);
  extern void fixup_irqs(void);
  #endif
  
  #ifdef CONFIG_HAVE_KVM
  extern void kvm_set_posted_intr_wakeup_handler(void (*handler)(void));
  #endif
  
  extern void (*x86_platform_ipi_callback)(void);
  extern void native_init_IRQ(void);
  
  extern bool handle_irq(struct irq_desc *desc, struct pt_regs *regs);
  
  extern __visible unsigned int do_IRQ(struct pt_regs *regs);
  
  /* Interrupt vector management */
  extern DECLARE_BITMAP(used_vectors, NR_VECTORS);
  extern int vector_used_by_percpu_irq(unsigned int vector);
  
  extern void init_ISA_irqs(void);
  
  #ifdef CONFIG_X86_LOCAL_APIC
  void arch_trigger_cpumask_backtrace(const struct cpumask *mask,
  				    bool exclude_self);
  #define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
  #endif
  
  #endif /* _ASM_X86_IRQ_H */
  