Date: Sun, 8 Aug 2010 14:00:21 +0000 (UTC) From: Marius Strobl <marius@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/sparc64/include smp.h src/sys/sparc64/sparc64 genassym.c mp_exception.S mp_machdep.c tick.c Message-ID: <201008081400.o78E0mvk008716@repoman.freebsd.org>
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marius 2010-08-08 14:00:21 UTC
FreeBSD src repository
Modified files:
sys/sparc64/include smp.h
sys/sparc64/sparc64 genassym.c mp_exception.S mp_machdep.c
tick.c
Log:
SVN rev 211071 on 2010-08-08 14:00:21Z by marius
- As it is not possible for sched_bind(9) to context switch with
td_critnest > 1 when not already running on the desired CPU read the
TICK counter of the BSP via a direct cross trap request in that case
instead.
- Treat the STICK based timecounter the same way as the TICK based one
regarding its quality and obtaining the counter value from the BSP.
Like the TICK timers the STICK ones also are only synchronized during
their startup (which might not result in good synchronicity in the
first place) but not afterwards and might drift over time, causing
problems when the time is read from different CPUs (see r135972).
Revision Changes Path
1.32 +33 -0 src/sys/sparc64/include/smp.h
1.80 +3 -0 src/sys/sparc64/sparc64/genassym.c
1.16 +28 -4 src/sys/sparc64/sparc64/mp_exception.S
1.59 +1 -0 src/sys/sparc64/sparc64/mp_machdep.c
1.29 +49 -31 src/sys/sparc64/sparc64/tick.c
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