linux-kernel - Re: drivers/pci/probe.c patch in 2.6.20.4 causes 'cannot adjust BAR0 (not I/O)' on NVidia MCP51

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Date:	Mon, 26 Mar 2007 11:55:06 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	"Jan Beulich" <jbeulich@...ell.com>
Cc:	"Bartlomiej Zolnierkiewicz" <bzolnier@...il.com>,
	"Kevin P. Fleming" <lkml@...leming.us>, "Greg KH" <greg@...ah.com>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Alan Cox" <alan@...hat.com>, <linux-kernel@...r.kernel.org>
Subject: Re: drivers/pci/probe.c patch in 2.6.20.4 causes 'cannot adjust
 BAR0 (not I/O)' on NVidia MCP51

> patch did, though, it was that way already before. But otoh with the
> legacy flag set in progif, these BARs *should* be I/O ones...

They *are* I/O resources. The register value loaded by the BIOS or
hardware at start up is undefined and the "is memory" check is actually
wrong.

Doesn't explain the problem but does explain the message.
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