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From: Marius Strobl <marius@FreeBSD.org>
Date: Thu, 1 Jan 2009 14:01:21 +0000 (UTC)
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Subject: cvs commit: src/sys/sparc64/include tlb.h src/sys/sparc64/sparc64
 machdep.c pmap.c
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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