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Merge branch 'fortglx/4.15/time' of https://git.linaro.org/people/john.stultz/linux into timers/core

Browse source 
Pull timekeeping updates from John Stultz:

 - More y2038 work from Arnd Bergmann

 - A new mechanism to allow RTC drivers to specify the resolution of the
   RTC so the suspend/resume code can make informed decisions whether to
   inject the suspended time or not in case of fast suspend/resume cycles.
This commit is contained in:
Thomas Gleixner 2017-10-31 23:17:28 +01:00
commit fb56d689fb
14 changed files with 687 additions and 617 deletions
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137
include/linux/timekeeping.h
View file

@ -15,27 +15,16 @@ extern void xtime_update(unsigned long ticks);
/*
* Get and set timeofday
*/
extern void do_gettimeofday(struct timeval *tv);
extern int do_settimeofday64(const struct timespec64 *ts);
extern int do_sys_settimeofday64(const struct timespec64 *tv,
const struct timezone *tz);
/*
* Kernel time accessors
*/
unsigned long get_seconds(void);
struct timespec64 current_kernel_time64(void);
/* does not take xtime_lock */
struct timespec __current_kernel_time(void);
static inline struct timespec current_kernel_time(void)
{
struct timespec64 now = current_kernel_time64();
return timespec64_to_timespec(now);
}
/*
* timespec based interfaces
* timespec64 based interfaces
*/
struct timespec64 get_monotonic_coarse64(void);
extern void getrawmonotonic64(struct timespec64 *ts);
@ -47,116 +36,6 @@ extern int __getnstimeofday64(struct timespec64 *tv);
extern void getnstimeofday64(struct timespec64 *tv);
extern void getboottime64(struct timespec64 *ts);
#if BITS_PER_LONG == 64
/**
* Deprecated. Use do_settimeofday64().
*/
static inline int do_settimeofday(const struct timespec *ts)
{
return do_settimeofday64(ts);
}
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);
}
static inline void getrawmonotonic(struct timespec *ts)
{
getrawmonotonic64(ts);
}
static inline struct timespec get_monotonic_coarse(void)
{
return get_monotonic_coarse64();
}
static inline void getboottime(struct timespec *ts)
{
return getboottime64(ts);
}
#else
/**
* Deprecated. Use do_settimeofday64().
*/
static inline int do_settimeofday(const struct timespec *ts)
{
struct timespec64 ts64;
ts64 = timespec_to_timespec64(*ts);
return do_settimeofday64(&ts64);
}
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);
}
static inline void getrawmonotonic(struct timespec *ts)
{
struct timespec64 ts64;
getrawmonotonic64(&ts64);
*ts = timespec64_to_timespec(ts64);
}
static inline struct timespec get_monotonic_coarse(void)
{
return timespec64_to_timespec(get_monotonic_coarse64());
}
static inline void getboottime(struct timespec *ts)
{
struct timespec64 ts64;
getboottime64(&ts64);
*ts = timespec64_to_timespec(ts64);
}
#endif
#define ktime_get_real_ts64(ts) getnstimeofday64(ts)
/*
@ -242,23 +121,13 @@ extern u64 ktime_get_boot_fast_ns(void);
extern u64 ktime_get_real_fast_ns(void);
/*
* Timespec interfaces utilizing the ktime based ones
* timespec64 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 get_monotonic_boottime64(struct timespec64 *ts)
{
*ts = ktime_to_timespec64(ktime_get_boottime());
}
static inline void timekeeping_clocktai(struct timespec *ts)
{
*ts = ktime_to_timespec(ktime_get_clocktai());
}
static inline void timekeeping_clocktai64(struct timespec64 *ts)
{
*ts = ktime_to_timespec64(ktime_get_clocktai());
@ -341,10 +210,8 @@ extern void ktime_get_snapshot(struct system_time_snapshot *systime_snapshot);
*/
extern int persistent_clock_is_local;
extern void read_persistent_clock(struct timespec *ts);
extern void read_persistent_clock64(struct timespec64 *ts);
extern void read_boot_clock64(struct timespec64 *ts);
extern int update_persistent_clock(struct timespec now);
extern int update_persistent_clock64(struct timespec64 now);