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-rw-r--r--include/linux/timekeeping.h20
1 files changed, 18 insertions, 2 deletions
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index 86bc2026efce..5d738804e3d6 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -21,6 +21,21 @@ extern int do_sys_settimeofday64(const struct timespec64 *tv,
const struct timezone *tz);
/*
+ * ktime_get() family: read the current time in a multitude of ways,
+ *
+ * The default time reference is CLOCK_MONOTONIC, starting at
+ * boot time but not counting the time spent in suspend.
+ * For other references, use the functions with "real", "clocktai",
+ * "boottime" and "raw" suffixes.
+ *
+ * To get the time in a different format, use the ones wit
+ * "ns", "ts64" and "seconds" suffix.
+ *
+ * See Documentation/core-api/timekeeping.rst for more details.
+ */
+
+
+/*
* timespec64 based interfaces
*/
extern void ktime_get_raw_ts64(struct timespec64 *ts);
@@ -177,7 +192,7 @@ static inline time64_t ktime_get_clocktai_seconds(void)
extern bool timekeeping_rtc_skipsuspend(void);
extern bool timekeeping_rtc_skipresume(void);
-extern void timekeeping_inject_sleeptime64(struct timespec64 *delta);
+extern void timekeeping_inject_sleeptime64(const struct timespec64 *delta);
/*
* struct system_time_snapshot - simultaneous raw/real time capture with
@@ -243,7 +258,8 @@ extern void ktime_get_snapshot(struct system_time_snapshot *systime_snapshot);
extern int persistent_clock_is_local;
extern void read_persistent_clock64(struct timespec64 *ts);
-extern void read_boot_clock64(struct timespec64 *ts);
+void read_persistent_clock_and_boot_offset(struct timespec64 *wall_clock,
+ struct timespec64 *boot_offset);
extern int update_persistent_clock64(struct timespec64 now);
/*