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

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Message-ID: <20080114230448.GL9847@does.not.exist>
Date:	Tue, 15 Jan 2008 01:04:48 +0200
From:	Adrian Bunk <bunk@...nel.org>
To:	Matthew Wilcox <matthew@....cx>
Cc:	Arjan van de Ven <arjan@...radead.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Ivan Kokshaysky <ink@...assic.park.msu.ru>,
	Greg KH <greg@...ah.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	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>,
	Tony Camuso <tcamuso@...hat.com>, Loic Prylli <loic@...i.com>
Subject: Re: [Patch v2] Make PCI extended config space (MMCONFIG) a driver
	opt-in

On Mon, Jan 14, 2008 at 03:52:26PM -0700, Matthew Wilcox wrote:
> On Sun, Jan 13, 2008 at 09:01:08AM -0800, Arjan van de Ven wrote:
>...
> > > -	pci_conf1_read(0, 0, PCI_DEVFN(0,0), 0xce, 2, &win);
> > > +	pci_direct_conf1.read(0, 0, PCI_DEVFN(0,0), 0xce, 2, &win);
> > 
> > 	couldn't this (at least in some next patch) use the vector if it exists?
> 
> I thought so, but due to the way that things are initialised, mmconfig
> happens before conf1.  conf1 is known to be usable, but hasn't set
> raw_pci_ops at this point.  Confusing, and not ideal, but fixing this
> isn't in scope for 2.6.24.
>...

*ahem*

I don't think anything of what was discussed in this thread would be in 
scope for 2.6.24 (unless Linus wants to let the bunny that brings eggs 
release 2.6.24).

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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