Date: Sat, 22 Dec 2007 08:02:49 -0800
From: Arjan van de Ven <arjan@infradead.org>
To: Matthew Wilcox <matthew@wil.cx>
Cc: Jeff Garzik <jeff@garzik.org>, linux-kernel@vger.kernel.org,
       gregkh@suse.de, linux-pci@atrey.karlin.mff.cuni.cz,
       torvalds@linux-foundation.org
Subject: Re: [patch] Make MMCONFIG space (extended PCI config space) a
 driver opt-in issue
Message-ID: <20071222080249.482fab0b@laptopd505.fenrus.org>
In-Reply-To: <20071222155436.GS29690@parisc-linux.org>
References: <20071222043139.0cd59804@laptopd505.fenrus.org>
	<476D1D16.5090703@garzik.org>
	<20071222064719.73fdd9a4@laptopd505.fenrus.org>
	<20071222155436.GS29690@parisc-linux.org>
Organization: Intel
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On Sat, 22 Dec 2007 08:54:37 -0700
Matthew Wilcox <matthew@wil.cx> wrote:

> On Sat, Dec 22, 2007 at 06:47:19AM -0800, Arjan van de Ven wrote:
> > Do you hate the name or the concept? I'm certainly open for a
> > better name.... 
> 
> I hate the concept.  We should just fall back to type1 accesses on
> mmconfig machines for all accesses below 64 bytes, as Ivan suggested.

I assume you meant 256 not 64;

even then.. it's technically not correct; you're not supposed to mix access types for the same device..
Just doing opt-in also allows us to do quirks (forbid access) as well.


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