text: #ifndef __ASM_IDLE_H
  #define __ASM_IDLE_H
  
  #include <linux/linkage.h>
  
  extern void (*cpu_wait)(void);
  extern void r4k_wait(void);
  extern asmlinkage void __r4k_wait(void);
  extern void r4k_wait_irqoff(void);
  extern void __pastwait(void);
  
  static inline int using_rollback_handler(void)
  {
  	return cpu_wait == r4k_wait;
  }
  
  static inline int address_is_in_r4k_wait_irqoff(unsigned long addr)
  {
  	return addr >= (unsigned long)r4k_wait_irqoff &&
  	       addr < (unsigned long)__pastwait;
  }
  
  #endif /* __ASM_IDLE_H  */
  