arch/arm/include/asm/localtimer.h

   1 /*
   2  *  arch/arm/include/asm/localtimer.h
   3  *
   4  *  Copyright (C) 2004-2005 ARM Ltd.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10 #ifndef __ASM_ARM_LOCALTIMER_H
  11 #define __ASM_ARM_LOCALTIMER_H
  12
  13 #include <linux/interrupt.h>
  14
  15 struct clock_event_device;
  16
  17 /*
  18  * Setup a per-cpu timer, whether it be a local timer or dummy broadcast
  19  */
  20 void percpu_timer_setup(void);
  21
  22 #ifdef CONFIG_LOCAL_TIMERS
  23
  24 #ifdef CONFIG_HAVE_ARM_TWD
  25
  26 #include "smp_twd.h"
  27
  28 #define local_timer_stop(c)     twd_timer_stop((c))
  29
  30 #else
  31
  32 /*
  33  * Stop the local timer
  34  */
  35 void local_timer_stop(struct clock_event_device *);
  36
  37 #endif
  38
  39 /*
  40  * Setup a local timer interrupt for a CPU.
  41  */
  42 int local_timer_setup(struct clock_event_device *);
  43
  44 #else
  45
  46 static inline int local_timer_setup(struct clock_event_device *evt)
  47 {
  48         return -ENXIO;
  49 }
  50
  51 static inline void local_timer_stop(struct clock_event_device *evt)
  52 {
  53 }
  54 #endif
  55
  56 #endif