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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/include/linux/timekeeping.h
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@@ -159,12 +159,12 @@
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 	return ktime_to_ns(ktime_get_real());
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 }
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-static inline u64 ktime_get_boot_ns(void)
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+static inline u64 ktime_get_boottime_ns(void)
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 {
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 	return ktime_to_ns(ktime_get_boottime());
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 }
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-static inline u64 ktime_get_tai_ns(void)
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+static inline u64 ktime_get_clocktai_ns(void)
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 {
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 	return ktime_to_ns(ktime_get_clocktai());
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 }
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@@ -223,8 +223,20 @@
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 extern void timekeeping_inject_sleeptime64(const struct timespec64 *delta);
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 /*
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+ * struct ktime_timestanps - Simultaneous mono/boot/real timestamps
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+ * @mono:	Monotonic timestamp
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+ * @boot:	Boottime timestamp
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+ * @real:	Realtime timestamp
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+ */
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+struct ktime_timestamps {
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+	u64		mono;
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+	u64		boot;
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+	u64		real;
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+};
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+
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+/**
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  * struct system_time_snapshot - simultaneous raw/real time capture with
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- *	counter value
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+ *				 counter value
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  * @cycles:	Clocksource counter value to produce the system times
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  * @real:	Realtime system time
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  * @raw:	Monotonic raw system time
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@@ -239,9 +251,9 @@
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 	u8		cs_was_changed_seq;
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 };
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-/*
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+/**
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  * struct system_device_crosststamp - system/device cross-timestamp
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- *	(syncronized capture)
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+ *				      (synchronized capture)
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  * @device:		Device time
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  * @sys_realtime:	Realtime simultaneous with device time
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  * @sys_monoraw:	Monotonic raw simultaneous with device time
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@@ -252,12 +264,12 @@
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 	ktime_t sys_monoraw;
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 };
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-/*
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+/**
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  * struct system_counterval_t - system counter value with the pointer to the
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- *	corresponding clocksource
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+ *				corresponding clocksource
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  * @cycles:	System counter value
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  * @cs:		Clocksource corresponding to system counter value. Used by
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- *	timekeeping code to verify comparibility of two cycle values
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+ *		timekeeping code to verify comparibility of two cycle values
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  */
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 struct system_counterval_t {
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 	u64			cycles;
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@@ -280,6 +292,9 @@
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  */
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 extern void ktime_get_snapshot(struct system_time_snapshot *systime_snapshot);
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+/* NMI safe mono/boot/realtime timestamps */
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+extern void ktime_get_fast_timestamps(struct ktime_timestamps *snap);
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+
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 /*
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  * Persistent clock related interfaces
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  */
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@@ -289,31 +304,5 @@
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 void read_persistent_wall_and_boot_offset(struct timespec64 *wall_clock,
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 					  struct timespec64 *boot_offset);
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 extern int update_persistent_clock64(struct timespec64 now);
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-
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-/*
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- * deprecated aliases, don't use in new code
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- */
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-#define getnstimeofday64(ts)		ktime_get_real_ts64(ts)
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-#define get_monotonic_boottime64(ts)	ktime_get_boottime_ts64(ts)
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-#define getrawmonotonic64(ts)		ktime_get_raw_ts64(ts)
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-#define timekeeping_clocktai64(ts)	ktime_get_clocktai_ts64(ts)
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-
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-static inline struct timespec64 current_kernel_time64(void)
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-{
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-	struct timespec64 ts;
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-
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-	ktime_get_coarse_real_ts64(&ts);
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-
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-	return ts;
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-}
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-
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-static inline struct timespec64 get_monotonic_coarse64(void)
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-{
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-	struct timespec64 ts;
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-
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-	ktime_get_coarse_ts64(&ts);
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-
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-	return ts;
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-}
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 #endif