diff options
Diffstat (limited to 'sys/kern/kern_tc.c')
| -rw-r--r-- | sys/kern/kern_tc.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/sys/kern/kern_tc.c b/sys/kern/kern_tc.c index 929e570..397fd2f 100644 --- a/sys/kern/kern_tc.c +++ b/sys/kern/kern_tc.c @@ -131,6 +131,7 @@ sysctl_kern_boottime(SYSCTL_HANDLER_ARGS) #endif return SYSCTL_OUT(req, &boottime, sizeof(boottime)); } + /* * Return the difference between the timehands' counter value now and what * was when we copied it to the timehands' offset_count. @@ -782,3 +783,23 @@ inittimecounter(void *dummy) } SYSINIT(timecounter, SI_SUB_CLOCKS, SI_ORDER_SECOND, inittimecounter, NULL) + +static +uint64_t +tc_cpu_ticks(void) +{ + static uint64_t base; + static unsigned last; + uint64_t u; + struct timecounter *tc; + + tc = timehands->th_counter; + u = tc->tc_get_timecount(tc) & tc->tc_counter_mask; + if (u < last) + base += tc->tc_counter_mask + 1; + last = u; + return (u + base); +} + +uint64_t (*cpu_ticks)(void) = tc_cpu_ticks; +uint64_t (*cpu_tickrate)(void) = tc_getfrequency; |
