/**
   * @file oprof.h
   *
   * @remark Copyright 2002 OProfile authors
   * @remark Read the file COPYING
   *
   * @author John Levon <levon@movementarian.org>
   */
  
  #ifndef OPROF_H
  #define OPROF_H
  
  int oprofile_setup(void);

  void oprofile_shutdown(void);

  
  int oprofilefs_register(void);
  void oprofilefs_unregister(void);
  
  int oprofile_start(void);
  void oprofile_stop(void);
  
  struct oprofile_operations;

  extern unsigned long oprofile_buffer_size;
  extern unsigned long oprofile_cpu_buffer_size;
  extern unsigned long oprofile_buffer_watershed;

  extern unsigned long oprofile_time_slice;

  extern struct oprofile_operations oprofile_ops;
  extern unsigned long oprofile_started;

  extern unsigned long oprofile_backtrace_depth;

  struct super_block;
  struct dentry;

  void oprofile_create_files(struct super_block *sb, struct dentry *root);

  int oprofile_timer_init(struct oprofile_operations *ops);

  #ifdef CONFIG_OPROFILE_NMI_TIMER
  int op_nmi_timer_init(struct oprofile_operations *ops);
  #else
  static inline int op_nmi_timer_init(struct oprofile_operations *ops)
  {
  	return -ENODEV;
  }
  #endif

  int oprofile_set_ulong(unsigned long *addr, unsigned long val);

  int oprofile_set_timeout(unsigned long time);

  #endif /* OPROF_H */