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#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);
/**
* 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());
}
/*
* Timespec interfaces utilizing the ktime based ones
*/
static inline void get_monotonic_boottime(struct timespec *ts)
{
*ts = ktime_to_timespec(ktime_get_boottime());
}
/*
* 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
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