1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
11  * 2. Redistributions in binary form must reproduce the above copyright
46 		*delta = (tc - th->th_offset_count) & th->th_counter_mask;  in tc_delta()
51  * Calculate the absolute or boot-relative time from the
52  * machine-specific fast timecounter and the published timehands
56  * in-kernel timehands, see sys/kern/kern_tc.c:binuptime().  This code
63 	uint32_t curr, gen;  in binuptime()  local
69 		if (!tk->tk_enabled)  in binuptime()
72 		curr = atomic_load_acq_32(&tk->tk_current);  in binuptime()
73 		th = &tk->tk_th[curr];  in binuptime()
74 		gen = atomic_load_acq_32(&th->th_gen);  in binuptime()
75 		*bt = th->th_offset;  in binuptime()
81 		scale = th->th_scale;  in binuptime()
90 			bt->sec += x >> 32;  in binuptime()
95 			bintime_add(bt, &th->th_boottime);  in binuptime()
102 	} while (curr != tk->tk_current || gen == 0 || gen != th->th_gen);  in binuptime()
110 	uint32_t curr, gen;  in getnanouptime()  local
113 		if (!tk->tk_enabled)  in getnanouptime()
116 		curr = atomic_load_acq_32(&tk->tk_current);  in getnanouptime()
117 		th = &tk->tk_th[curr];  in getnanouptime()
118 		gen = atomic_load_acq_32(&th->th_gen);  in getnanouptime()
119 		*bt = th->th_offset;  in getnanouptime()
126 	} while (curr != tk->tk_current || gen == 0 || gen != th->th_gen);  in getnanouptime()
146 	if (tk->tk_ver != VDSO_TK_VER_CURR)  in __vdso_gettimeofday()
167 	if (tk->tk_ver != VDSO_TK_VER_CURR)  in __vdso_clock_gettime()
194 		ts->tv_nsec = 0;  in __vdso_clock_gettime()