diff options
| author | Konstantin Belousov <kib@FreeBSD.org> | 2019-09-09 12:42:48 +0000 |
|---|---|---|
| committer | Moyano, Gabriel <gabriel.moyano@dlr.de> | 2021-11-16 09:48:22 +0100 |
| commit | bc9c0e00cca4b2f3d04a9e10b4fb698a842ebbeb (patch) | |
| tree | 9f72f091265ea53bb1c8f883ae190a5e27bcba04 | |
| parent | Make timehands count selectable at boottime. (diff) | |
| download | rtems-bc9c0e00cca4b2f3d04a9e10b4fb698a842ebbeb.tar.bz2 | |
Initialize timehands linkage much earlier.
Reported and tested by: trasz
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
| -rw-r--r-- | cpukit/score/src/kern_tc.c | 34 |
1 files changed, 22 insertions, 12 deletions
diff --git a/cpukit/score/src/kern_tc.c b/cpukit/score/src/kern_tc.c index 3aa68f7595..0051d49330 100644 --- a/cpukit/score/src/kern_tc.c +++ b/cpukit/score/src/kern_tc.c @@ -245,7 +245,8 @@ SYSCTL_INT(_kern_timecounter, OID_AUTO, stepwarnings, CTLFLAG_RW, ×tepwarnings, 0, "Log time steps"); static int timehands_count = 2; -SYSCTL_INT(_kern_timecounter, OID_AUTO, timehands_count, CTLFLAG_RDTUN, +SYSCTL_INT(_kern_timecounter, OID_AUTO, timehands_count, + CTLFLAG_RDTUN | CTLFLAG_NOFETCH, &timehands_count, 0, "Count of timehands in rotation"); struct bintime bt_timethreshold; @@ -2242,12 +2243,30 @@ done: return (0); } +/* Set up the requested number of timehands. */ static void -inittimecounter(void *dummy) +inittimehands(void *dummy) { struct timehands *thp; + int i; + + TUNABLE_INT_FETCH("kern.timecounter.timehands_count", + &timehands_count); + if (timehands_count < 1) + timehands_count = 1; + if (timehands_count > nitems(ths)) + timehands_count = nitems(ths); + for (i = 1, thp = &ths[0]; i < timehands_count; thp = &ths[i++]) + thp->th_next = &ths[i]; + thp->th_next = &ths[0]; +} +SYSINIT(timehands, SI_SUB_TUNABLES, SI_ORDER_ANY, inittimehands, NULL); + +static void +inittimecounter(void *dummy) +{ u_int p; - int i, tick_rate; + int tick_rate; /* * Set the initial timeout to @@ -2274,15 +2293,6 @@ inittimecounter(void *dummy) ffclock_init(); #endif - /* Set up the requested number of timehands. */ - if (timehands_count < 1) - timehands_count = 1; - if (timehands_count > nitems(ths)) - timehands_count = nitems(ths); - for (i = 1, thp = &ths[0]; i < timehands_count; thp = &ths[i++]) - thp->th_next = &ths[i]; - thp->th_next = &ths[0]; - /* warm up new timecounter (again) and get rolling. */ (void)timecounter->tc_get_timecount(timecounter); (void)timecounter->tc_get_timecount(timecounter); |