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Re: [PATCH][MIPS] add DMA declare coherent memory support

To: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Subject: Re: [PATCH][MIPS] add DMA declare coherent memory support
From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Date: Wed, 3 Jun 2009 17:31:52 +0200
Cc: Ralf Baechle <ralf@linux-mips.org>, linux-mips <linux-mips@linux-mips.org>
In-reply-to: <20090604001604.9ced2997.yoichi_yuasa@tripeaks.co.jp>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <20090604001604.9ced2997.yoichi_yuasa@tripeaks.co.jp>
Sender: linux-mips-bounce@linux-mips.org
User-agent: Mutt/1.5.18 (2008-05-17)
On Thu, Jun 04, 2009 at 12:16:04AM +0900, Yoichi Yuasa wrote:
> 
> Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>

a little bit more description what this is all about would be quite
helpful. I also see a problem as there is at least one MIPS machine
(SGI IP28), which doesn't support coherent memory (at least not without
playing dirty games with the memory controller, which in return makes
the machine slow). 

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                                [ RFC1925, 2.3 ]

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