Date: Fri, 28 Oct 2011 09:16:16 +0200 From: Hans Petter Selasky <hselasky@c2i.net> To: freebsd-arch@freebsd.org Cc: Adrian Chadd <adrian@freebsd.org> Subject: Re: newbus IO ordering semantics - moving forward Message-ID: <201110280916.16312.hselasky@c2i.net> In-Reply-To: <CAJ-VmonXtXPNuu=b%2BM4Zj=xz0Jy1e65qj1sS2En1fJPfPy%2Bi=Q@mail.gmail.com> References: <CAJ-VmonFJG3xLn2JvarOUN6o-e7MC%2BA%2B=W9_vocZqY6L3CmTmQ@mail.gmail.com> <E24309DA-09E3-40E1-A605-5CC72F03150A@bsdimp.com> <CAJ-VmonXtXPNuu=b%2BM4Zj=xz0Jy1e65qj1sS2En1fJPfPy%2Bi=Q@mail.gmail.com>
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On Thursday 27 October 2011 22:49:12 Adrian Chadd wrote: > I have no idea. Which architectures would benefit? Often PIO is rare with high performance devices. Usually data is moved using DMA. --HPS
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