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Re: [PATCH 2.5] SGI O2 framebuffer driver

To: Ralf Baechle <ralf@linux-mips.org>
Subject: Re: [PATCH 2.5] SGI O2 framebuffer driver
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Date: 12 Dec 2002 12:44:05 +0000
Cc: Vivien Chappelier <vivienc@nerim.net>, linux-mips@linux-mips.org, Ilya Volynets <ilya@theIlya.com>
In-reply-to: <20021212033307.C22987@linux-mips.org>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <Pine.LNX.4.21.0212120004330.2300-100000@melkor> <1039656676.18587.63.camel@irongate.swansea.linux.org.uk> <20021212033307.C22987@linux-mips.org>
Sender: linux-mips-bounce@linux-mips.org
On Thu, 2002-12-12 at 02:33, Ralf Baechle wrote:
> The O2 is non-cache coherent.  So with the fairly large write-back second
> level caches enabled frame buffer write could potencially be delayed
> indefinately but in any case quite long.  Frame buffers are usually only

You can flush the frame buffer pages that were touched at the end of an
operation though


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