linux-kernel - Re: [PATCH] radeon: acquire BIOS via firmware subsystem if everything else failed

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Message-ID: <20141125172550.GA19688@srcf.ucam.org>
Date:	Tue, 25 Nov 2014 17:25:50 +0000
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Alex Deucher <alexdeucher@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Maling list - DRI developers 
	<dri-devel@...ts.freedesktop.org>,
	Alex Deucher <alexander.deucher@....com>,
	Christian König <christian.koenig@....com>,
	David Airlie <airlied@...ux.ie>
Subject: Re: [PATCH] radeon: acquire BIOS via firmware subsystem if
 everything else failed

On Tue, Nov 25, 2014 at 12:14:21PM -0500, Alex Deucher wrote:
> The vbios image is available via ACPI prior to the OS taking over.
> IIRC, Matthew Garret fixed up the bootloader to fetch the vbios image
> prior to loading Linux so that it could be accessed after the OS
> loaded.

EFI rather than ACPI, but yeah. In theory this should work fine if 
you're using the EFI entry point. I don't know whether the patches for 
linuxefi were ever accepted by grub upstream - if not, pushing those 
would make more sense.

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