linux-kernel - Re: [PATCH[RFC] Quirk macbook pro 6,2 into ahci mode

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Message-ID: <20100719155811.GA18754@srcf.ucam.org>
Date:	Mon, 19 Jul 2010 16:58:11 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Jeff Garzik <jgarzik@...ox.com>
Cc:	Jens Axboe <jaxboe@...ionio.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Tejun Heo <tj@...nel.org>,
	Jesse Barnes <jbarnes@...tuousgeek.org>
Subject: Re: [PATCH[RFC] Quirk macbook pro 6,2 into ahci mode

On Sun, Jul 18, 2010 at 06:44:41PM -0400, Jeff Garzik wrote:

> I would have quirked AHCI/piix hardware into AHCI mode long ago, if  
> firmwares defaulting to piix mode would actually program the PCI BAR  
> correctly.

If you perform the fixup early enough then the PCI resource allocation 
code should take a decent stab at it. I'd feel more comfortable with 
that once we start using ACPI _CRS by default, since that gives us a 
much better chance of avoiding conflicting with some bit of motherboard 
hardware.

-- 
Matthew Garrett | mjg59@...f.ucam.org
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