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From: Olivier Houchard <cognet@FreeBSD.org>
Date: Tue, 24 May 2005 21:47:11 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
X-FreeBSD-CVS-Branch: HEAD
Cc: 
Subject: cvs commit: src/sys/arm/arm pmap.c swtch.S
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cognet      2005-05-24 21:47:11 UTC

  FreeBSD src repository

  Modified files:
    sys/arm/arm          pmap.c swtch.S 
  Log:
  Write back affected pages in pmap_qremove() as well. This removes the need
  to change the DACR when switching to a kernel thread, thus making
  userland thread => kernel thread => same userland thread switch cheaper by
  totally avoiding data cache and TLB invalidation.
  
  Revision  Changes    Path
  1.29      +11 -5     src/sys/arm/arm/pmap.c
  1.15      +1 -1      src/sys/arm/arm/swtch.S