linux-kernel - Re: [PATCH] X86: Improve GOP detection in the EFI boot stub

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Message-ID: <1343385878.5502.5.camel@mfleming-mobl1.ger.corp.intel.com>
Date:	Fri, 27 Jul 2012 11:44:38 +0100
From:	Matt Fleming <matt.fleming@...el.com>
To:	Matthew Garrett <mjg@...hat.com>
Cc:	linux-efi@...r.kernel.org, linux-kernel@...r.kernel.org,
	x86@...nel.org
Subject: Re: [PATCH] X86: Improve GOP detection in the EFI boot stub

On Thu, 2012-07-26 at 18:00 -0400, Matthew Garrett wrote:
> We currently use the PCI IO protocol as a proxy for a functional GOP. This
> is less than ideal, since some platforms will put the GOP on output devices
> rather than the GPU itself. Move to using the conout protocol. This is not
> guaranteed per-spec, but is part of the consplitter implementation that
> causes this problem in the first place and so should be reliable.
> 
> Signed-off-by: Matthew Garrett <mjg@...hat.com>
> ---
>  arch/x86/boot/compressed/eboot.c |   29 ++++++++++++++++-------------
>  arch/x86/boot/compressed/eboot.h |    4 ++++
>  2 files changed, 20 insertions(+), 13 deletions(-)

Acked-by: Matt Fleming <matt.fleming@...el.com>


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