linux-kernel - Re: [Patch v2] Make PCI extended config space (MMCONFIG) a driver opt-in

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Message-ID: <20080115194046.GG18741@parisc-linux.org>
Date:	Tue, 15 Jan 2008 12:40:46 -0700
From:	Matthew Wilcox <matthew@....cx>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Tony Camuso <tcamuso@...hat.com>, Greg KH <greg@...ah.com>,
	Loic Prylli <loic@...i.com>, Adrian Bunk <bunk@...nel.org>,
	Arjan van de Ven <arjan@...radead.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Ivan Kokshaysky <ink@...assic.park.msu.ru>,
	Greg KH <gregkh@...e.de>, linux-kernel@...r.kernel.org,
	Jeff Garzik <jeff@...zik.org>,
	linux-pci@...ey.karlin.mff.cuni.cz, Martin Mares <mj@....cz>
Subject: Re: [Patch v2] Make PCI extended config space (MMCONFIG) a driver opt-in

On Tue, Jan 15, 2008 at 11:38:42AM -0800, Linus Torvalds wrote:
> On Tue, 15 Jan 2008, Tony Camuso wrote:
> > Linus is confident that conf1 is not going away for at least the
> > next five years.
> 
> Not on PC's. Small birds tell me that there can be all these non-PC x86 
> subarchitectures that may or may not have conf1.

Right -- hence my patch on top of Ivan's which removes all the assumptions
about conf1 from mmconfig (there are still *references* to conf1 in the
mmconfig code, but they'll only be used if conf1 is functional).

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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