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-rw-r--r--arch/s390/include/asm/timer.h65
1 files changed, 65 insertions, 0 deletions
diff --git a/arch/s390/include/asm/timer.h b/arch/s390/include/asm/timer.h
new file mode 100644
index 000000000000..d98d79e35cd6
--- /dev/null
+++ b/arch/s390/include/asm/timer.h
@@ -0,0 +1,65 @@
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#ifdef CONFIG_VIRT_TIMER
52
53extern void vtime_start_cpu_timer(void);
54extern void vtime_stop_cpu_timer(void);
55
56#else
57
58static inline void vtime_start_cpu_timer(void) { }
59static inline void vtime_stop_cpu_timer(void) { }
60
61#endif /* CONFIG_VIRT_TIMER */
62
63#endif /* __KERNEL__ */
64
65#endif /* _ASM_S390_TIMER_H */