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Date: Mon, 09 Feb 2009 12:22:20 -0700 (MST)
Message-Id: <20090209.122220.-1691636592.imp@bsdimp.com>
To: sam@freebsd.org
From: "M. Warner Losh" <imp@bsdimp.com>
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Cc: scottl@samsco.org, src-committers@freebsd.org, jhb@freebsd.org,
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Subject: Re: svn commit: r188350 - in head/sys: amd64/amd64 arm/arm
 dev/usb2/core i386/i386 ia64/ia64 sys
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In message: <49907FB0.9050901@freebsd.org>
            Sam Leffler <sam@freebsd.org> writes:
: M. Warner Losh wrote:
: > arm also does bounce buffering, but not for memory address space reasons.
: >   
: 
: Not sure what you mean my "address space reasons" but it bounces for PCI 
: dma above 64M on ixp4xx.

That's exactly what I mean.

Warner