1/*
2 *  include/asm-s390/timer.h
3 *
4 *  (C) Copyright IBM Corp. 2003,2006
5 *  Virtual CPU timer
6 *
7 *  Author: Jan Glauber (jang@de.ibm.com)
8 */
9
10#ifndef _ASM_S390_TIMER_H
11#define _ASM_S390_TIMER_H
12
13#ifdef __KERNEL__
14
15#include <linux/timer.h>
16
17#define VTIMER_MAX_SLICE (0x7ffffffffffff000LL)
18
19struct vtimer_list {
20	struct list_head entry;
21
22	int cpu;
23	__u64 expires;
24	__u64 interval;
25
26	spinlock_t lock;
27	unsigned long magic;
28
29	void (*function)(unsigned long);
30	unsigned long data;
31};
32
33/* the offset value will wrap after ca. 71 years */
34struct vtimer_queue {
35	struct list_head list;
36	spinlock_t lock;
37	__u64 to_expire;	  /* current event expire time */
38	__u64 offset;		  /* list offset to zero */
39	__u64 idle;		  /* temp var for idle */
40};
41
42extern void init_virt_timer(struct vtimer_list *timer);
43extern void add_virt_timer(void *new);
44extern void add_virt_timer_periodic(void *new);
45extern int mod_virt_timer(struct vtimer_list *timer, __u64 expires);
46extern int del_virt_timer(struct vtimer_list *timer);
47
48extern void init_cpu_vtimer(void);
49extern void vtime_init(void);
50
51#endif /* __KERNEL__ */
52
53#endif /* _ASM_S390_TIMER_H */
54