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Date:      Mon, 28 Jul 2008 16:09:22 +0000 (UTC)
From:      Andrew Thompson <thompsa@FreeBSD.org>
To:        src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   cvs commit: src/sys/dev/usb ehci.c ohci.c
Message-ID:  <200807281609.m6SG9Q7R031921@repoman.freebsd.org>

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thompsa     2008-07-28 16:09:22 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_7)
    sys/dev/usb          ehci.c ohci.c 
  Log:
  SVN rev 180899 on 2008-07-28 16:09:22Z by thompsa
  
  MFC r177459
  
   Workaround design botch in usb: blindly mixing bus_dma with PIO does not
   work on architectures with a write-back cache as the PIO writes end up
   in the cache which the sync(BUS_DMASYNC_POSTREAD) in usb_transfer_complete
   then discards; compensate in the xfer methods that do PIO by pushing the
   writes out of the cache before usb_transfer_complete is called.
  
  Revision   Changes    Path
  1.56.2.2   +16 -0     src/sys/dev/usb/ehci.c
  1.170.2.1  +16 -0     src/sys/dev/usb/ohci.c



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