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From: John Baldwin <jhb@FreeBSD.org>
Date: Thu, 23 Apr 2009 20:24:19 +0000 (UTC)
To: cvs-src-old@freebsd.org
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Subject: cvs commit: src/sys/amd64/amd64 busdma_machdep.c src/sys/arm/arm
 busdma_machdep.c src/sys/i386/i386 busdma_machdep.c
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jhb         2009-04-23 20:24:19 UTC

  FreeBSD src repository

  Modified files:
    sys/amd64/amd64      busdma_machdep.c 
    sys/arm/arm          busdma_machdep.c 
    sys/i386/i386        busdma_machdep.c 
  Log:
  SVN rev 191438 on 2009-04-23 20:24:19Z by jhb
  
  Reduce the number of bounce zones (and thus the number of bounce pages
  used in some cases):
  - Ignore DMA tag boundaries when allocating bounce pages.  The boundaries
    don't determine whether or not parts of a DMA request bounce.  Instead,
    they are just used to carve up segments.
  - Allow tags with sub-page alignment to share bounce pages since bounce
    pages are always page aligned.
  
  Reviewed by:    scottl (amd64)
  MFC after:      1 month
  
  Revision  Changes    Path
  1.91      +2 -8      src/sys/amd64/amd64/busdma_machdep.c
  1.47      +5 -11     src/sys/arm/arm/busdma_machdep.c
  1.99      +2 -8      src/sys/i386/i386/busdma_machdep.c