linux-kernel - Re: [PATCH v8 00/12] use nonblock mmc requests to minimize latency

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Message-ID: <alpine.LFD.2.00.1107032105010.14596@xanadu.home>
Date:	Sun, 3 Jul 2011 21:07:23 -0400 (EDT)
From:	Nicolas Pitre <nicolas.pitre@...aro.org>
To:	Per Forlin <per.forlin@...aro.org>
cc:	Arnd Bergmann <arnd@...db.de>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	linux-arm-kernel@...ts.infradead.org, linaro-dev@...ts.linaro.org,
	Linus Walleij <linus.walleij@...aro.org>,
	linux-mmc@...r.kernel.org, lkml <linux-kernel@...r.kernel.org>,
	Chris Ball <cjb@...top.org>,
	Nickolay Nickolaev <nicknickolaev@...il.com>
Subject: Re: [PATCH v8 00/12] use nonblock mmc requests to minimize latency

On Sun, 3 Jul 2011, Per Forlin wrote:

> On 2 July 2011 21:37, Arnd Bergmann <arnd@...db.de> wrote:
> > On Saturday 02 July 2011 14:29:38 Russell King - ARM Linux wrote:
> >> One other thing to be considered here is whether this idea should be
> >> limited to just MMC or whether it should be extended further, to
> >> move the DMA mapping stuff out of the hot path for other block devices
> >> too.
> >>
> >> There are ARM systems with SATA which do 28MB/s - which could be
> >> improved by this technique.
> >
> > Excellent point. We had discussed SATA items in the context of Linaro
> > work before, and the conclusion was always that we wouldn't need to
> > do any work for it in the common code. I'll make sure that we bring
> > it up at the meeting next month in Cambridge so we can officially
> > assign someone to do this.
> >
> Arnd, do you know if any of the Linaro boards have SATA?

The latest i.mx53 boards have SATA.


Nicolas
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