Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1#ifndef __ASM_SH_TIMER_H
2#define __ASM_SH_TIMER_H
3
4#include <linux/sysdev.h>
5#include <asm/cpu/timer.h>
6
7struct sys_timer_ops {
8 int (*init)(void);
9 int (*start)(void);
10 int (*stop)(void);
11#ifndef CONFIG_GENERIC_TIME
12 unsigned long (*get_offset)(void);
13#endif
14};
15
16struct sys_timer {
17 const char *name;
18
19 struct sys_device dev;
20 struct sys_timer_ops *ops;
21
22#ifdef CONFIG_NO_IDLE_HZ
23 struct dyn_tick_timer *dyn_tick;
24#endif
25};
26
27#ifdef CONFIG_NO_IDLE_HZ
28#define DYN_TICK_ENABLED (1 << 1)
29
30struct dyn_tick_timer {
31 spinlock_t lock;
32 unsigned int state; /* Current state */
33 int (*enable)(void); /* Enables dynamic tick */
34 int (*disable)(void); /* Disables dynamic tick */
35 void (*reprogram)(unsigned long); /* Reprograms the timer */
36 int (*handler)(int, void *);
37};
38
39void timer_dyn_reprogram(void);
40#else
41#define timer_dyn_reprogram() do { } while (0)
42#endif
43
44#define TICK_SIZE (tick_nsec / 1000)
45
46extern struct sys_timer tmu_timer, cmt_timer, mtu2_timer;
47extern struct sys_timer *sys_timer;
48
49#ifndef CONFIG_GENERIC_TIME
50static inline unsigned long get_timer_offset(void)
51{
52 return sys_timer->ops->get_offset();
53}
54#endif
55
56/* arch/sh/kernel/timers/timer.c */
57struct sys_timer *get_sys_timer(void);
58
59/* arch/sh/kernel/time.c */
60void handle_timer_tick(void);
61
62#endif /* __ASM_SH_TIMER_H */