include/asm-x86/irq_32.h

   1 #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
  13 #include <linux/sched.h>
  14 /* include comes from machine specific directory */
  15 #include "irq_vectors.h"
  16 #include <asm/thread_info.h>
  17
  18 static inline int irq_canonicalize(int irq)
  19 {
  20         return ((irq == 2) ? 9 : irq);
  21 }
  22
  23 #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);
  29   extern void irq_ctx_exit(int cpu);
  30 # define __ARCH_HAS_DO_SOFTIRQ
  31 #else
  32 # define irq_ctx_init(cpu) do { } while (0)
  33 # define irq_ctx_exit(cpu) do { } while (0)
  34 #endif
  35
  36 #ifdef CONFIG_IRQBALANCE
  37 extern int irqbalance_disable(char *str);
  38 #endif
  39
  40 #ifdef CONFIG_HOTPLUG_CPU
  41 extern void fixup_irqs(cpumask_t map);
  42 #endif
  43
  44 unsigned int do_IRQ(struct pt_regs *regs);
  45 void init_IRQ(void);
  46 void __init native_init_IRQ(void);
  47
  48 /* Interrupt vector management */
  49 extern DECLARE_BITMAP(used_vectors, NR_VECTORS);
  50
  51 #endif /* _ASM_IRQ_H */