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Linux kernel mirror (for testing)
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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
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
27
28#ifdef CONFIG_HAVE_ARM_TWD
29
30#include "smp_twd.h"
31
32#define local_timer_ack() twd_timer_ack()
33
34#else
35
36/*
37 * Platform provides this to acknowledge a local timer IRQ.
38 * Returns true if the local timer IRQ is to be processed.
39 */
40int local_timer_ack(void);
41
42#endif
43
44/*
45 * Setup a local timer interrupt for a CPU.
46 */
47int local_timer_setup(struct clock_event_device *);
48
49#else
50
51static inline int local_timer_setup(struct clock_event_device *evt)
52{
53 return -ENXIO;
54}
55#endif
56
57#endif