#ifndef __ASM_IDMAP_H
  #define __ASM_IDMAP_H
  
  #include <linux/compiler.h>
  #include <asm/pgtable.h>
  
  /* Tag a function as requiring to be executed via an identity mapping. */
  #define __idmap __section(.idmap.text) noinline notrace
  
  extern pgd_t *idmap_pgd;
  
  void setup_mm_for_reboot(void);
  
  #endif	/* __ASM_IDMAP_H */