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| author | Mark Johnston <markj@FreeBSD.org> | 2021-11-19 17:29:28 -0500 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2022-02-21 14:01:31 +0100 |
| commit | ede2278d8d7c3fe436ec9b4b94d82e23f21d984e (patch) | |
| tree | 8d778a44a6f27f8fdd36774e2435dffbf7782758 /cpukit/score/src | |
| parent | config: CONFIGURE_DISABLE_NEWLIB_REENTRANCY (diff) | |
| download | rtems-ede2278d8d7c3fe436ec9b4b94d82e23f21d984e.tar.bz2 | |
timecounter: Initialize tc_lock earlier
Hyper-V wants to register its MSR-based timecounter during
SI_SUB_HYPERVISOR, before SI_SUB_LOCK, since an emulated 8254 may not be
available for DELAY(). So we cannot use MTX_SYSINIT to initialize the
timecounter lock.
PR: 259878
Reviewed by: kib
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D33014
Diffstat (limited to 'cpukit/score/src')
| -rw-r--r-- | cpukit/score/src/kern_tc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/cpukit/score/src/kern_tc.c b/cpukit/score/src/kern_tc.c index ea7d9ec953..c0f67df26b 100644 --- a/cpukit/score/src/kern_tc.c +++ b/cpukit/score/src/kern_tc.c @@ -219,7 +219,6 @@ static struct timecounter *timecounters = &dummy_timecounter; /* Mutex to protect the timecounter list. */ static struct mtx tc_lock; -MTX_SYSINIT(tc_lock, &tc_lock, "tc", MTX_DEF); int tc_min_ticktock_freq = 1; #else /* __rtems__ */ @@ -2378,6 +2377,8 @@ inittimehands(void *dummy) TUNABLE_STR_FETCH("kern.timecounter.hardware", tc_from_tunable, sizeof(tc_from_tunable)); + + mtx_init(&tc_lock, "tc", NULL, MTX_DEF); } SYSINIT(timehands, SI_SUB_TUNABLES, SI_ORDER_ANY, inittimehands, NULL); |