#ifndef ___ASM_SPARC_UACCESS_H
  #define ___ASM_SPARC_UACCESS_H
  #if defined(__sparc__) && defined(__arch64__)
  #include <asm/uaccess_64.h>
  #else
  #include <asm/uaccess_32.h>
  #endif
  
  #define user_addr_max() \
  	(segment_eq(get_fs(), USER_DS) ? TASK_SIZE : ~0UL)
  
  long strncpy_from_user(char *dest, const char __user *src, long count);
  
  #endif