mirror of https://gitee.com/openkylin/linux.git
63 lines
1.3 KiB
C
63 lines
1.3 KiB
C
#ifndef __ASM_SH_TIMER_H
|
|
#define __ASM_SH_TIMER_H
|
|
|
|
#include <linux/sysdev.h>
|
|
#include <asm/cpu/timer.h>
|
|
|
|
struct sys_timer_ops {
|
|
int (*init)(void);
|
|
int (*start)(void);
|
|
int (*stop)(void);
|
|
#ifndef CONFIG_GENERIC_TIME
|
|
unsigned long (*get_offset)(void);
|
|
#endif
|
|
};
|
|
|
|
struct sys_timer {
|
|
const char *name;
|
|
|
|
struct sys_device dev;
|
|
struct sys_timer_ops *ops;
|
|
|
|
#ifdef CONFIG_NO_IDLE_HZ
|
|
struct dyn_tick_timer *dyn_tick;
|
|
#endif
|
|
};
|
|
|
|
#ifdef CONFIG_NO_IDLE_HZ
|
|
#define DYN_TICK_ENABLED (1 << 1)
|
|
|
|
struct dyn_tick_timer {
|
|
spinlock_t lock;
|
|
unsigned int state; /* Current state */
|
|
int (*enable)(void); /* Enables dynamic tick */
|
|
int (*disable)(void); /* Disables dynamic tick */
|
|
void (*reprogram)(unsigned long); /* Reprograms the timer */
|
|
int (*handler)(int, void *);
|
|
};
|
|
|
|
void timer_dyn_reprogram(void);
|
|
#else
|
|
#define timer_dyn_reprogram() do { } while (0)
|
|
#endif
|
|
|
|
#define TICK_SIZE (tick_nsec / 1000)
|
|
|
|
extern struct sys_timer tmu_timer, cmt_timer, mtu2_timer;
|
|
extern struct sys_timer *sys_timer;
|
|
|
|
#ifndef CONFIG_GENERIC_TIME
|
|
static inline unsigned long get_timer_offset(void)
|
|
{
|
|
return sys_timer->ops->get_offset();
|
|
}
|
|
#endif
|
|
|
|
/* arch/sh/kernel/timers/timer.c */
|
|
struct sys_timer *get_sys_timer(void);
|
|
|
|
/* arch/sh/kernel/time.c */
|
|
void handle_timer_tick(void);
|
|
|
|
#endif /* __ASM_SH_TIMER_H */
|