linux-kernel - Re: [patches] [patch 3/5] x86: Add PCI extended config space access for AMD Barcelona

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Message-ID: <86802c440709061048w30021c4kad0b9d903c236896@mail.gmail.com>
Date:	Thu, 6 Sep 2007 10:48:18 -0700
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	"Arne Georg Gleditsch" <argggh@...phinics.no>,
	"Andreas Herrmann" <andreas.herrmann3@....com>,
	"Robert Richter" <robert.richter@....com>,
	"Arjan van de Ven" <arjan@...radead.org>, patches@...-64.org,
	linux-kernel@...r.kernel.org
Subject: Re: [patches] [patch 3/5] x86: Add PCI extended config space access for AMD Barcelona

On 9/6/07, H. Peter Anvin <hpa@...or.com> wrote:
> Well, to a first order of approximations, *all* northbridges have some
> sort of hardware registers to set mmconfig.  We were talking yesterday
> that it might just make more sense to have code for various northbridges
> to configure mmconfig directly, just like we do for IRQ routing (we
> can't trust the BIOS there, either.)

that is good idea.
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