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Date: Tue, 13 Aug 2002 22:38:19 -0300 (BRT)
From: Rik van Riel <riel@conectiva.com.br>
X-X-Sender: riel@imladris.surriel.com
To: Imran Badr <imran.badr@cavium.com>
cc: "'Ralf Baechle'" <ralf@linux-mips.org>,
       "'Alan Cox'" <alan@lxorguk.ukuu.org.uk>, <linux-kernel@vger.kernel.org>
Subject: RE: Cache coherency and snooping
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On Tue, 13 Aug 2002, Imran Badr wrote:

> Please advise if following sequence of operations are going to help:
>
> alloc memory
> reserve the page
> flush every cache
> call ioremap_nocache

Won't work around hardware limitations.  If the hardware
cannot turn off caching, all you could do is flush the
page to ram before every explicit IO request...

regards,

Rik
-- 
Bravely reimplemented by the knights who say "NIH".

http://www.surriel.com/		http://distro.conectiva.com/

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