include/asm-x86/irq.h

   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
  13 extern int pin_map_size;
  14 extern int first_free_entry;
  15
  16 static inline int irq_canonicalize(int irq)
  17 {
  18         return ((irq == 2) ? 9 : irq);
  19 }
  20
  21 #ifdef CONFIG_X86_LOCAL_APIC
  22 # define ARCH_HAS_NMI_WATCHDOG
  23 #endif
  24
  25 #ifdef CONFIG_4KSTACKS
  26   extern void irq_ctx_init(int cpu);
  27   extern void irq_ctx_exit(int cpu);
  28 # define __ARCH_HAS_DO_SOFTIRQ
  29 #else
  30 # define irq_ctx_init(cpu) do { } while (0)
  31 # define irq_ctx_exit(cpu) do { } while (0)
  32 # ifdef CONFIG_X86_64
  33 #  define __ARCH_HAS_DO_SOFTIRQ
  34 # endif
  35 #endif
  36
  37 #ifdef CONFIG_IRQBALANCE
  38 extern int irqbalance_disable(char *str);
  39 #endif
  40
  41 #ifdef CONFIG_HOTPLUG_CPU
  42 #include <linux/cpumask.h>
  43 extern void fixup_irqs(cpumask_t map);
  44 #endif
  45
  46 extern unsigned int do_IRQ(struct pt_regs *regs);
  47 extern void init_IRQ(void);
  48 extern void native_init_IRQ(void);
  49
  50 /* Interrupt vector management */
  51 extern DECLARE_BITMAP(used_vectors, NR_VECTORS);
  52
  53 #endif /* ASM_X86__IRQ_H */