210 lines
4.3 KiB
C
Executable File
210 lines
4.3 KiB
C
Executable File
#ifndef _LINUX_TIMEKEEPING_H
|
|
#define _LINUX_TIMEKEEPING_H
|
|
|
|
/* Included from linux/ktime.h */
|
|
|
|
void timekeeping_init(void);
|
|
extern int timekeeping_suspended;
|
|
|
|
/*
|
|
* Get and set timeofday
|
|
*/
|
|
extern void do_gettimeofday(struct timeval *tv);
|
|
extern int do_settimeofday(const struct timespec *tv);
|
|
extern int do_sys_settimeofday(const struct timespec *tv,
|
|
const struct timezone *tz);
|
|
|
|
/*
|
|
* Kernel time accessors
|
|
*/
|
|
unsigned long get_seconds(void);
|
|
struct timespec current_kernel_time(void);
|
|
/* does not take xtime_lock */
|
|
struct timespec __current_kernel_time(void);
|
|
|
|
/*
|
|
* timespec based interfaces
|
|
*/
|
|
struct timespec get_monotonic_coarse(void);
|
|
extern void getrawmonotonic(struct timespec *ts);
|
|
extern void ktime_get_ts64(struct timespec64 *ts);
|
|
|
|
extern int __getnstimeofday64(struct timespec64 *tv);
|
|
extern void getnstimeofday64(struct timespec64 *tv);
|
|
|
|
#if BITS_PER_LONG == 64
|
|
static inline int __getnstimeofday(struct timespec *ts)
|
|
{
|
|
return __getnstimeofday64(ts);
|
|
}
|
|
|
|
static inline void getnstimeofday(struct timespec *ts)
|
|
{
|
|
getnstimeofday64(ts);
|
|
}
|
|
|
|
static inline void ktime_get_ts(struct timespec *ts)
|
|
{
|
|
ktime_get_ts64(ts);
|
|
}
|
|
|
|
static inline void ktime_get_real_ts(struct timespec *ts)
|
|
{
|
|
getnstimeofday64(ts);
|
|
}
|
|
|
|
#else
|
|
static inline int __getnstimeofday(struct timespec *ts)
|
|
{
|
|
struct timespec64 ts64;
|
|
int ret = __getnstimeofday64(&ts64);
|
|
|
|
*ts = timespec64_to_timespec(ts64);
|
|
return ret;
|
|
}
|
|
|
|
static inline void getnstimeofday(struct timespec *ts)
|
|
{
|
|
struct timespec64 ts64;
|
|
|
|
getnstimeofday64(&ts64);
|
|
*ts = timespec64_to_timespec(ts64);
|
|
}
|
|
|
|
static inline void ktime_get_ts(struct timespec *ts)
|
|
{
|
|
struct timespec64 ts64;
|
|
|
|
ktime_get_ts64(&ts64);
|
|
*ts = timespec64_to_timespec(ts64);
|
|
}
|
|
|
|
static inline void ktime_get_real_ts(struct timespec *ts)
|
|
{
|
|
struct timespec64 ts64;
|
|
|
|
getnstimeofday64(&ts64);
|
|
*ts = timespec64_to_timespec(ts64);
|
|
}
|
|
#endif
|
|
|
|
extern void getboottime(struct timespec *ts);
|
|
|
|
#define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts)
|
|
#define ktime_get_real_ts64(ts) getnstimeofday64(ts)
|
|
|
|
/*
|
|
* ktime_t based interfaces
|
|
*/
|
|
|
|
enum tk_offsets {
|
|
TK_OFFS_REAL,
|
|
TK_OFFS_BOOT,
|
|
TK_OFFS_TAI,
|
|
TK_OFFS_MAX,
|
|
};
|
|
|
|
extern ktime_t ktime_get(void);
|
|
extern ktime_t ktime_get_with_offset(enum tk_offsets offs);
|
|
extern ktime_t ktime_mono_to_any(ktime_t tmono, enum tk_offsets offs);
|
|
extern ktime_t ktime_get_raw(void);
|
|
|
|
/**
|
|
* ktime_get_real - get the real (wall-) time in ktime_t format
|
|
*/
|
|
static inline ktime_t ktime_get_real(void)
|
|
{
|
|
return ktime_get_with_offset(TK_OFFS_REAL);
|
|
}
|
|
|
|
/**
|
|
* ktime_get_boottime - Returns monotonic time since boot in ktime_t format
|
|
*
|
|
* This is similar to CLOCK_MONTONIC/ktime_get, but also includes the
|
|
* time spent in suspend.
|
|
*/
|
|
static inline ktime_t ktime_get_boottime(void)
|
|
{
|
|
return ktime_get_with_offset(TK_OFFS_BOOT);
|
|
}
|
|
|
|
/**
|
|
* ktime_get_clocktai - Returns the TAI time of day in ktime_t format
|
|
*/
|
|
static inline ktime_t ktime_get_clocktai(void)
|
|
{
|
|
return ktime_get_with_offset(TK_OFFS_TAI);
|
|
}
|
|
|
|
/**
|
|
* ktime_mono_to_real - Convert monotonic time to clock realtime
|
|
*/
|
|
static inline ktime_t ktime_mono_to_real(ktime_t mono)
|
|
{
|
|
return ktime_mono_to_any(mono, TK_OFFS_REAL);
|
|
}
|
|
|
|
static inline u64 ktime_get_ns(void)
|
|
{
|
|
return ktime_to_ns(ktime_get());
|
|
}
|
|
|
|
static inline u64 ktime_get_real_ns(void)
|
|
{
|
|
return ktime_to_ns(ktime_get_real());
|
|
}
|
|
|
|
static inline u64 ktime_get_boot_ns(void)
|
|
{
|
|
return ktime_to_ns(ktime_get_boottime());
|
|
}
|
|
|
|
static inline u64 ktime_get_raw_ns(void)
|
|
{
|
|
return ktime_to_ns(ktime_get_raw());
|
|
}
|
|
|
|
extern u64 ktime_get_mono_fast_ns(void);
|
|
|
|
/*
|
|
* Timespec interfaces utilizing the ktime based ones
|
|
*/
|
|
static inline void get_monotonic_boottime(struct timespec *ts)
|
|
{
|
|
*ts = ktime_to_timespec(ktime_get_boottime());
|
|
}
|
|
|
|
static inline void timekeeping_clocktai(struct timespec *ts)
|
|
{
|
|
*ts = ktime_to_timespec(ktime_get_clocktai());
|
|
}
|
|
|
|
/*
|
|
* RTC specific
|
|
*/
|
|
extern void timekeeping_inject_sleeptime(struct timespec *delta);
|
|
|
|
/*
|
|
* PPS accessor
|
|
*/
|
|
extern void getnstime_raw_and_real(struct timespec *ts_raw,
|
|
struct timespec *ts_real);
|
|
|
|
/*
|
|
* Persistent clock related interfaces
|
|
*/
|
|
extern bool persistent_clock_exist;
|
|
extern int persistent_clock_is_local;
|
|
|
|
static inline bool has_persistent_clock(void)
|
|
{
|
|
return persistent_clock_exist;
|
|
}
|
|
|
|
extern void read_persistent_clock(struct timespec *ts);
|
|
extern void read_boot_clock(struct timespec *ts);
|
|
extern int update_persistent_clock(struct timespec now);
|
|
|
|
|
|
#endif
|