linux-kernel - Re: [PATCH] x86/pci: try to detect host_bridge pci_cfg

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Message-ID: <49B1C9BE.4010608@kernel.org>
Date:	Fri, 06 Mar 2009 17:11:26 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	"H. Peter Anvin" <hpa@...or.com>
CC:	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Matthew Wilcox <matthew@....cx>, Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-pci@...r.kernel.org
Subject: Re: [PATCH] x86/pci: try to detect host_bridge pci_cfg_space

H. Peter Anvin wrote:
> Yinghai Lu wrote:
>>
>> currently only found amd and intel host bridge (on cpu or io hub) need
>> this trick.
>> other device we could still use quirks.
>>
> 
> I'd suspect that we might just want to do this for all devices if we
> ever find any, but yes, let's wait until we have a concrete specimen
> before even trying something like that.
> 
> However, it'd be good to have this in the patch description (which
> really is a PCI patch more than an x86 patch, so I'd be happier if it
> went through Jesse than me.)

sure. it could affect IA64 guys with io hubs too.

YH

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