text: /* drivers/cpufreq/cpufreq_times.c
   *
   * Copyright (C) 2018 Google, Inc.
   *
   * This software is licensed under the terms of the GNU General Public
   * License version 2, as published by the Free Software Foundation, and
   * may be copied, distributed, and modified under those terms.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   */
  
  #ifndef _LINUX_CPUFREQ_TIMES_H
  #define _LINUX_CPUFREQ_TIMES_H
  
  #include <linux/cpufreq.h>
  #include <linux/cputime.h>
  #include <linux/pid.h>
  
  #ifdef CONFIG_CPU_FREQ_TIMES
  void cpufreq_task_times_init(struct task_struct *p);
  void cpufreq_task_times_alloc(struct task_struct *p);
  void cpufreq_task_times_exit(struct task_struct *p);
  int proc_time_in_state_show(struct seq_file *m, struct pid_namespace *ns,
  			    struct pid *pid, struct task_struct *p);
  void cpufreq_acct_update_power(struct task_struct *p, cputime_t cputime);
  void cpufreq_times_create_policy(struct cpufreq_policy *policy);
  void cpufreq_times_record_transition(struct cpufreq_freqs *freq);
  void cpufreq_task_times_remove_uids(uid_t uid_start, uid_t uid_end);
  int single_uid_time_in_state_open(struct inode *inode, struct file *file);
  #else
  static inline void cpufreq_task_times_init(struct task_struct *p) {}
  static inline void cpufreq_task_times_alloc(struct task_struct *p) {}
  static inline void cpufreq_task_times_exit(struct task_struct *p) {}
  static inline void cpufreq_acct_update_power(struct task_struct *p,
  					     u64 cputime) {}
  static inline void cpufreq_times_create_policy(struct cpufreq_policy *policy) {}
  static inline void cpufreq_times_record_transition(
  	struct cpufreq_freqs *freq) {}
  static inline void cpufreq_task_times_remove_uids(uid_t uid_start,
  						  uid_t uid_end) {}
  #endif /* CONFIG_CPU_FREQ_TIMES */
  #endif /* _LINUX_CPUFREQ_TIMES_H */
  