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Russell Kingbc282482009-05-17 18:58:34 +01001/*
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
13struct clock_event_device;
14
15/*
16 * Setup a per-cpu timer, whether it be a local timer or dummy broadcast
17 */
18void percpu_timer_setup(void);
19
20/*
21 * Called from assembly, this is the local timer IRQ handler
22 */
23asmlinkage void do_local_timer(struct pt_regs *);
24
25
26#ifdef CONFIG_LOCAL_TIMERS
Russell Kingf32f4ce2009-05-16 12:14:21 +010027
28#ifdef CONFIG_HAVE_ARM_TWD
29
30#include "smp_twd.h"
31
32#define local_timer_ack() twd_timer_ack()
33#define local_timer_stop() twd_timer_stop()
34
35#else
36
Russell Kingbc282482009-05-17 18:58:34 +010037/*
38 * Platform provides this to acknowledge a local timer IRQ.
39 * Returns true if the local timer IRQ is to be processed.
40 */
41int local_timer_ack(void);
42
43/*
44 * Stop a local timer interrupt.
45 */
46void local_timer_stop(void);
47
Russell Kingf32f4ce2009-05-16 12:14:21 +010048#endif
49
Russell Kingbc282482009-05-17 18:58:34 +010050/*
51 * Setup a local timer interrupt for a CPU.
52 */
53void local_timer_setup(struct clock_event_device *);
54
55#else
56
57static inline void local_timer_stop(void)
58{
59}
60
61#endif
62
63#endif