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From: Marius Strobl <marius@FreeBSD.org>
Date: Fri, 25 Mar 2011 12:53:09 +0000 (UTC)
To: cvs-src-old@freebsd.org
X-FreeBSD-CVS-Branch: RELENG_8
Subject: cvs commit: src/sys/dev/sound/pcm buffer.c
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marius      2011-03-25 12:53:09 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_8)
    sys/dev/sound/pcm    buffer.c 
  Log:
  SVN rev 219995 on 2011-03-25 12:53:09Z by marius
  
  MFC: r219548
  
  Allocate the sound buffer DMA memory coherent. While NetBSD typically
  also does this for sound drivers it's probably not necessary for all
  combinations of controllers and drivers. However, given that our sound
  drivers completely lack bus_dmamap_sync(9) calls this at least serves
  as a workaround when enabling use of the IOMMU streaming buffers on
  sparc64 and generally for arm and mips.
  
  Revision  Changes    Path
  1.38.2.3  +1 -1      src/sys/dev/sound/pcm/buffer.c