Eric Lee / smarc-ti-linux-kernel

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kernel/time/tick-internal.h 4.31 KB
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f8381cba0   Thomas Gleixner   [PATCH] tick-mana... 
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  /*
   * tick internal variable and functions used by low/high res code
   */
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  #define TICK_DO_TIMER_NONE	-1
  #define TICK_DO_TIMER_BOOT	-2
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  DECLARE_PER_CPU(struct tick_device, tick_cpu_device);
  extern spinlock_t tick_device_lock;
  extern ktime_t tick_next_period;
  extern ktime_t tick_period;
d3ed78245   Thomas Gleixner   highres/dyntick: ... 
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  extern int tick_do_timer_cpu __read_mostly;
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  extern void tick_setup_periodic(struct clock_event_device *dev, int broadcast);
  extern void tick_handle_periodic(struct clock_event_device *dev);
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  extern void clockevents_shutdown(struct clock_event_device *dev);
f8381cba0   Thomas Gleixner   [PATCH] tick-mana... 
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  /*
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   * NO_HZ / high resolution timer shared code
   */
  #ifdef CONFIG_TICK_ONESHOT
  extern void tick_setup_oneshot(struct clock_event_device *newdev,
  			       void (*handler)(struct clock_event_device *),
  			       ktime_t nextevt);
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  extern int tick_dev_program_event(struct clock_event_device *dev,
  				  ktime_t expires, int force);
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  extern int tick_program_event(ktime_t expires, int force);
  extern void tick_oneshot_notify(void);
  extern int tick_switch_to_oneshot(void (*handler)(struct clock_event_device *));
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  extern void tick_resume_oneshot(void);
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  # ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
  extern void tick_broadcast_setup_oneshot(struct clock_event_device *bc);
  extern void tick_broadcast_oneshot_control(unsigned long reason);
  extern void tick_broadcast_switch_to_oneshot(void);
  extern void tick_shutdown_broadcast_oneshot(unsigned int *cpup);
cd05a1f81   Thomas Gleixner   [PATCH] clockeven... 
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  extern int tick_resume_broadcast_oneshot(struct clock_event_device *bc);
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  extern int tick_broadcast_oneshot_active(void);
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  # else /* BROADCAST */
  static inline void tick_broadcast_setup_oneshot(struct clock_event_device *bc)
  {
  	BUG();
  }
  static inline void tick_broadcast_oneshot_control(unsigned long reason) { }
  static inline void tick_broadcast_switch_to_oneshot(void) { }
  static inline void tick_shutdown_broadcast_oneshot(unsigned int *cpup) { }
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  static inline int tick_broadcast_oneshot_active(void) { return 0; }
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  # endif /* !BROADCAST */
  
  #else /* !ONESHOT */
  static inline
  void tick_setup_oneshot(struct clock_event_device *newdev,
  			void (*handler)(struct clock_event_device *),
  			ktime_t nextevt)
  {
  	BUG();
  }
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  static inline void tick_resume_oneshot(void)
  {
  	BUG();
  }
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  static inline int tick_program_event(ktime_t expires, int force)
  {
  	return 0;
  }
  static inline void tick_oneshot_notify(void) { }
  static inline void tick_broadcast_setup_oneshot(struct clock_event_device *bc)
  {
  	BUG();
  }
  static inline void tick_broadcast_oneshot_control(unsigned long reason) { }
  static inline void tick_shutdown_broadcast_oneshot(unsigned int *cpup) { }
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  static inline int tick_resume_broadcast_oneshot(struct clock_event_device *bc)
  {
  	return 0;
  }
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  static inline int tick_broadcast_oneshot_active(void) { return 0; }
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  #endif /* !TICK_ONESHOT */
  
  /*
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   * Broadcasting support
   */
  #ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
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  extern int tick_device_uses_broadcast(struct clock_event_device *dev, int cpu);
  extern int tick_check_broadcast_device(struct clock_event_device *dev);
  extern int tick_is_broadcast_device(struct clock_event_device *dev);
  extern void tick_broadcast_on_off(unsigned long reason, int *oncpu);
  extern void tick_shutdown_broadcast(unsigned int *cpup);
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  extern void tick_suspend_broadcast(void);
  extern int tick_resume_broadcast(void);
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  extern void
  tick_set_periodic_handler(struct clock_event_device *dev, int broadcast);
  
  #else /* !BROADCAST */
  
  static inline int tick_check_broadcast_device(struct clock_event_device *dev)
  {
  	return 0;
  }
  
  static inline int tick_is_broadcast_device(struct clock_event_device *dev)
  {
  	return 0;
  }
  static inline int tick_device_uses_broadcast(struct clock_event_device *dev,
  					     int cpu)
  {
  	return 0;
  }
  static inline void tick_do_periodic_broadcast(struct clock_event_device *d) { }
  static inline void tick_broadcast_on_off(unsigned long reason, int *oncpu) { }
  static inline void tick_shutdown_broadcast(unsigned int *cpup) { }
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  static inline void tick_suspend_broadcast(void) { }
  static inline int tick_resume_broadcast(void) { return 0; }
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  /*
   * Set the periodic handler in non broadcast mode
   */
  static inline void tick_set_periodic_handler(struct clock_event_device *dev,
  					     int broadcast)
  {
  	dev->event_handler = tick_handle_periodic;
  }
  #endif /* !BROADCAST */
  
  /*
   * Check, if the device is functional or a dummy for broadcast
   */
  static inline int tick_device_is_functional(struct clock_event_device *dev)
  {
  	return !(dev->features & CLOCK_EVT_FEAT_DUMMY);
  }