From: Andi Kleen <ak@suse.de>
To: Jeff Garzik <jgarzik@pobox.com>
Subject: Re: [PATCH 0/4] PCI legacy I/O port free driver (take 3)
Date: Mon, 27 Feb 2006 23:58:17 +0100
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Cc: Grant Grundler <grundler@parisc-linux.org>,
       Kenji Kaneshige <kaneshige.kenji@soft.fujitsu.com>,
       Andrew Morton <akpm@osdl.org>, Greg KH <greg@kroah.com>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       linux-pci@atrey.karlin.mff.cuni.cz, benh@kernel.crashing.org,
       Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
References: <44028502.4000108@soft.fujitsu.com> <200602272342.11047.ak@suse.de> <4403829C.2070706@pobox.com>
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On Monday 27 February 2006 23:52, Jeff Garzik wrote:

> Its trivial to detect PCI hardware that doesn't support MMIO, the
> "IO-only" hardware Grant mentioned...

But there might be hardware that needs both PIO and MMIO
e.g. graphic cards.

How would the poor firmware distingush between those and 
MMIO only?

-Andi
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