Date: Thu, 1 Jan 2009 14:01:21 +0000 (UTC) From: Marius Strobl <marius@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/sparc64/include tlb.h src/sys/sparc64/sparc64 machdep.c pmap.c Message-ID: <200901011401.n01E1Y6r034854@repoman.freebsd.org>
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marius 2009-01-01 14:01:21 UTC
FreeBSD src repository
Modified files:
sys/sparc64/include tlb.h
sys/sparc64/sparc64 machdep.c pmap.c
Log:
SVN rev 186682 on 2009-01-01 14:01:21Z by marius
- Currently the PMAP code is laid out to let the kernel TSB cover the
whole KVA space using one locked 4MB dTLB entry per GB of physical
memory. On Cheetah-class machines only the dt16 can hold locked
entries though, which would be completely consumed for the kernel
TSB on machines with >= 16GB. Therefore limit the KVA space to use
no more than half of the lockable dTLB slots, given that we need
them also for other things.
- Add sanity checks which ensure that we don't exhaust the (lockable)
TLB slots.
Revision Changes Path
1.29 +2 -0 src/sys/sparc64/include/tlb.h
1.150 +16 -1 src/sys/sparc64/sparc64/machdep.c
1.178 +11 -1 src/sys/sparc64/sparc64/pmap.c
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