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linux/kernel/time
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Peter Zijlstra 1b86abc1c6 sched_clock: Expose struct clock_read_data 
In order to support perf_event_mmap_page::cap_time features, an
architecture needs, aside from a userspace readable counter register,
to expose the exact clock data so that userspace can convert the
counter register into a correct timestamp.

Provide struct clock_read_data and two (seqcount) helpers so that
architectures (arm64 in specific) can expose the numbers to userspace.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20200716051130.4359-2-leo.yan@linaro.org
Signed-off-by: Will Deacon <will@kernel.org>
2020-07-20 11:50:47 +01:00
..
alarmtimer.c
alarmtimer: Make alarmtimer_get_rtcdev() a stub when CONFIG_RTC_CLASS=n
2020-01-24 21:03:53 +01:00
clockevents.c
tick: Remove outgoing CPU from broadcast masks
2019-03-23 18:26:43 +01:00
clocksource.c
clocksource: Remove obsolete ifdef
2020-06-09 16:36:47 +02:00
hrtimer.c
hrtimer: Don't dereference the hrtimer pointer after the callback
2020-04-01 13:20:14 +02:00
itimer.c
y2038: rename itimerval to __kernel_old_itimerval
2019-12-18 18:07:33 +01:00
jiffies.c
timekeeping: Split jiffies seqlock
2020-03-21 16:00:23 +01:00
Kconfig
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
Makefile
ns: Introduce Time Namespace
2020-01-14 12:20:48 +01:00
namespace.c
nsproxy: add struct nsset
2020-05-09 13:57:12 +02:00
ntp_internal.h
ntp: Audit NTP parameters adjustment
2019-04-15 18:14:01 -04:00
ntp.c
ntp/y2038: Remove incorrect time_t truncation
2019-11-12 08:13:44 +01:00
posix-clock.c
posix-clocks: Rename the clock_get() callback to clock_get_timespec()
2020-01-14 12:20:49 +01:00
posix-cpu-timers.c
posix-cpu-timers: Replace __get_task_for_clock with pid_for_clock
2020-04-29 08:14:41 -05:00
posix-stubs.c
posix-timers: Make clock_nanosleep() time namespace aware
2020-01-14 12:20:55 +01:00
posix-timers.c
posix-timers: Pass lockdep expression to RCU lists
2020-02-17 20:12:19 +01:00
posix-timers.h
posix-clocks: Introduce clock_get_ktime() callback
2020-01-14 12:20:51 +01:00
sched_clock.c
sched_clock: Expose struct clock_read_data
2020-07-20 11:50:47 +01:00
test_udelay.c
time/debug: Remove license boilerplate
2018-11-23 11:51:21 +01:00
tick-broadcast-hrtimer.c
tick: broadcast-hrtimer: Fix a race in bc_set_next
2019-09-27 14:45:55 +02:00
tick-broadcast.c
tick: Fix typos in comments
2019-04-19 19:17:04 +02:00
tick-common.c
timekeeping: Split jiffies seqlock
2020-03-21 16:00:23 +01:00
tick-internal.h
tick: Remove outgoing CPU from broadcast masks
2019-03-23 18:26:43 +01:00
tick-oneshot.c
hrtimers/tick/clockevents: Remove sloppy license references
2018-11-23 11:51:21 +01:00
tick-sched.c
lockdep: Annotate irq_work
2020-03-21 16:00:24 +01:00
tick-sched.h
tick/sched: Update tick_sched struct documentation
2019-03-24 20:29:32 +01:00
time.c
y2038: remove unused time32 interfaces
2020-02-21 11:22:15 -08:00
timeconst.bc
time: Add SPDX license identifiers
2018-11-23 11:51:20 +01:00
timeconv.c
time: Add SPDX license identifiers
2018-11-23 11:51:20 +01:00
timecounter.c
time: Remove license boilerplate
2018-11-23 11:51:21 +01:00
timekeeping_debug.c
timekeeping/debug: No need to check return value of debugfs_create functions
2019-01-29 20:08:41 +01:00
timekeeping_internal.h
timekeeping/ntp: Constify some function arguments
2018-07-19 17:08:05 -07:00
timekeeping.c
x86/mce: Address objtools noinstr complaints
2020-06-11 15:15:02 +02:00
timekeeping.h
timekeeping: Split jiffies seqlock
2020-03-21 16:00:23 +01:00
timer_list.c
timer_list: Guard procfs specific code
2019-06-23 00:08:52 +02:00
timer.c
sysctl: pass kernel pointers to ->proc_handler
2020-04-27 02:07:40 -04:00
vsyscall.c
lib/vdso: Avoid highres update if clocksource is not VDSO capable
2020-02-17 20:12:17 +01:00