arch/arm/include/asm/irq.h

   1 #ifndef __ASM_ARM_IRQ_H
   2 #define __ASM_ARM_IRQ_H
   3
   4 #define NR_IRQS_LEGACY  16
   5
   6 #ifndef CONFIG_SPARSE_IRQ
   7 #include <mach/irqs.h>
   8 #else
   9 #define NR_IRQS NR_IRQS_LEGACY
  10 #endif
  11
  12 #ifndef irq_canonicalize
  13 #define irq_canonicalize(i)     (i)
  14 #endif
  15
  16 /*
  17  * Use this value to indicate lack of interrupt
  18  * capability
  19  */
  20 #ifndef NO_IRQ
  21 #define NO_IRQ  ((unsigned int)(-1))
  22 #endif
  23
  24 #ifndef __ASSEMBLY__
  25 struct irqaction;
  26 struct pt_regs;
  27 extern void migrate_irqs(void);
  28
  29 extern void asm_do_IRQ(unsigned int, struct pt_regs *);
  30 void handle_IRQ(unsigned int, struct pt_regs *);
  31 void init_IRQ(void);
  32
  33 #ifdef CONFIG_MULTI_IRQ_HANDLER
  34 extern void (*handle_arch_irq)(struct pt_regs *);
  35 extern void set_handle_irq(void (*handle_irq)(struct pt_regs *));
  36 #endif
  37
  38 #ifdef CONFIG_SMP
  39 extern void arch_trigger_all_cpu_backtrace(bool);
  40 #define arch_trigger_all_cpu_backtrace(x) arch_trigger_all_cpu_backtrace(x)
  41 #endif
  42
  43 static inline int nr_legacy_irqs(void)
  44 {
  45         return NR_IRQS_LEGACY;
  46 }
  47
  48 #endif
  49
  50 #endif
  51