summaryrefslogtreecommitdiff
path: root/include/linux/timekeeping.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/timekeeping.h')
-rw-r--r--include/linux/timekeeping.h91
1 files changed, 76 insertions, 15 deletions
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index 588a0e4b1ab9..86bc2026efce 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -19,27 +19,25 @@ extern void xtime_update(unsigned long ticks);
extern int do_settimeofday64(const struct timespec64 *ts);
extern int do_sys_settimeofday64(const struct timespec64 *tv,
const struct timezone *tz);
-/*
- * Kernel time accessors
- */
-struct timespec64 current_kernel_time64(void);
/*
* timespec64 based interfaces
*/
-struct timespec64 get_monotonic_coarse64(void);
-extern void getrawmonotonic64(struct timespec64 *ts);
+extern void ktime_get_raw_ts64(struct timespec64 *ts);
extern void ktime_get_ts64(struct timespec64 *ts);
+extern void ktime_get_real_ts64(struct timespec64 *tv);
+extern void ktime_get_coarse_ts64(struct timespec64 *ts);
+extern void ktime_get_coarse_real_ts64(struct timespec64 *ts);
+
+void getboottime64(struct timespec64 *ts);
+
+/*
+ * time64_t base interfaces
+ */
extern time64_t ktime_get_seconds(void);
extern time64_t __ktime_get_real_seconds(void);
extern time64_t ktime_get_real_seconds(void);
-extern int __getnstimeofday64(struct timespec64 *tv);
-extern void getnstimeofday64(struct timespec64 *tv);
-extern void getboottime64(struct timespec64 *ts);
-
-#define ktime_get_real_ts64(ts) getnstimeofday64(ts)
-
/*
* ktime_t based interfaces
*/
@@ -53,6 +51,7 @@ enum tk_offsets {
extern ktime_t ktime_get(void);
extern ktime_t ktime_get_with_offset(enum tk_offsets offs);
+extern ktime_t ktime_get_coarse_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);
extern u32 ktime_get_resolution_ns(void);
@@ -65,6 +64,11 @@ static inline ktime_t ktime_get_real(void)
return ktime_get_with_offset(TK_OFFS_REAL);
}
+static inline ktime_t ktime_get_coarse_real(void)
+{
+ return ktime_get_coarse_with_offset(TK_OFFS_REAL);
+}
+
/**
* ktime_get_boottime - Returns monotonic time since boot in ktime_t format
*
@@ -76,6 +80,11 @@ static inline ktime_t ktime_get_boottime(void)
return ktime_get_with_offset(TK_OFFS_BOOT);
}
+static inline ktime_t ktime_get_coarse_boottime(void)
+{
+ return ktime_get_coarse_with_offset(TK_OFFS_BOOT);
+}
+
/**
* ktime_get_clocktai - Returns the TAI time of day in ktime_t format
*/
@@ -84,6 +93,11 @@ static inline ktime_t ktime_get_clocktai(void)
return ktime_get_with_offset(TK_OFFS_TAI);
}
+static inline ktime_t ktime_get_coarse_clocktai(void)
+{
+ return ktime_get_coarse_with_offset(TK_OFFS_TAI);
+}
+
/**
* ktime_mono_to_real - Convert monotonic time to clock realtime
*/
@@ -123,18 +137,40 @@ extern u64 ktime_get_boot_fast_ns(void);
extern u64 ktime_get_real_fast_ns(void);
/*
- * timespec64 interfaces utilizing the ktime based ones
+ * timespec64/time64_t interfaces utilizing the ktime based ones
+ * for API completeness, these could be implemented more efficiently
+ * if needed.
*/
-static inline void get_monotonic_boottime64(struct timespec64 *ts)
+static inline void ktime_get_boottime_ts64(struct timespec64 *ts)
{
*ts = ktime_to_timespec64(ktime_get_boottime());
}
-static inline void timekeeping_clocktai64(struct timespec64 *ts)
+static inline void ktime_get_coarse_boottime_ts64(struct timespec64 *ts)
+{
+ *ts = ktime_to_timespec64(ktime_get_coarse_boottime());
+}
+
+static inline time64_t ktime_get_boottime_seconds(void)
+{
+ return ktime_divns(ktime_get_coarse_boottime(), NSEC_PER_SEC);
+}
+
+static inline void ktime_get_clocktai_ts64(struct timespec64 *ts)
{
*ts = ktime_to_timespec64(ktime_get_clocktai());
}
+static inline void ktime_get_coarse_clocktai_ts64(struct timespec64 *ts)
+{
+ *ts = ktime_to_timespec64(ktime_get_coarse_clocktai());
+}
+
+static inline time64_t ktime_get_clocktai_seconds(void)
+{
+ return ktime_divns(ktime_get_coarse_clocktai(), NSEC_PER_SEC);
+}
+
/*
* RTC specific
*/
@@ -210,5 +246,30 @@ extern void read_persistent_clock64(struct timespec64 *ts);
extern void read_boot_clock64(struct timespec64 *ts);
extern int update_persistent_clock64(struct timespec64 now);
+/*
+ * deprecated aliases, don't use in new code
+ */
+#define getnstimeofday64(ts) ktime_get_real_ts64(ts)
+#define get_monotonic_boottime64(ts) ktime_get_boottime_ts64(ts)
+#define getrawmonotonic64(ts) ktime_get_raw_ts64(ts)
+#define timekeeping_clocktai64(ts) ktime_get_clocktai_ts64(ts)
+
+static inline struct timespec64 current_kernel_time64(void)
+{
+ struct timespec64 ts;
+
+ ktime_get_coarse_real_ts64(&ts);
+
+ return ts;
+}
+
+static inline struct timespec64 get_monotonic_coarse64(void)
+{
+ struct timespec64 ts;
+
+ ktime_get_coarse_ts64(&ts);
+
+ return ts;
+}
#endif