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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