diff options
| author | Konstantin Belousov <kib@FreeBSD.org> | 2019-09-09 12:42:48 +0000 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2021-11-15 08:56:53 +0100 |
| commit | b825e213c374724d9a055e3f998edbb3130393aa (patch) | |
| tree | 5d1ab94ff7a34f04d0cdbceb3fe54a31c5852191 | |
| parent | Make timehands count selectable at boottime. (diff) | |
| download | rtems-b825e213c374724d9a055e3f998edbb3130393aa.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 88680db2c3..28a936232b 100644 --- a/cpukit/score/src/kern_tc.c +++ b/cpukit/score/src/kern_tc.c @@ -262,7 +262,8 @@ 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; @@ -2259,12 +2260,30 @@ 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 @@ -2291,15 +2310,6 @@ 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); |