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/errno.h>
  14 #include <linux/interrupt.h>
  15
  16 struct clock_event_device;
  17
  18 /*
  19  * Setup a per-cpu timer, whether it be a local timer or dummy broadcast
  20  */
  21 void percpu_timer_setup(void);
  22
  23 #ifdef CONFIG_LOCAL_TIMERS
  24
  25 #ifdef CONFIG_HAVE_ARM_TWD
  26
  27 #include "smp_twd.h"
  28
  29 #define local_timer_stop(c)     twd_timer_stop((c))
  30
  31 #else
  32
  33 /*
  34  * Stop the local timer
  35  */
  36 void local_timer_stop(struct clock_event_device *);
  37
  38 #endif
  39
  40 /*
  41  * Setup a local timer interrupt for a CPU.
  42  */
  43 int local_timer_setup(struct clock_event_device *);
  44
  45 #else
  46
  47 static inline int local_timer_setup(struct clock_event_device *evt)
  48 {
  49         return -ENXIO;
  50 }
  51
  52 static inline void local_timer_stop(struct clock_event_device *evt)
  53 {
  54 }
  55 #endif
  56
  57 #endif