linux-kernel - Re: AMP linux and GPU/HDMI controller sharing

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Message-ID: <CAPUj1OMpVU4n1Grm3H-mMwL_A1GsNDLb98PQv7VQp0zer-AhMg@mail.gmail.com>
Date:	Wed, 2 Oct 2013 12:26:34 +0530
From:	Mj Embd <mj.embd@...il.com>
To:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: AMP linux and GPU/HDMI controller sharing

Hello All,

Please help me out. No comments so far ...

On 9/29/13, Mj Embd <mj.embd@...il.com> wrote:
> Hi,
>
> I have got a client request to support on their board 2 instances of
> linux(Ubuntu) running as an AMP.
> The board has 2 ARM cores and a GPU. The LED monitor which connects to
> the board is using HDMI.
>
> Two cores can communicate via a IPI handshake.
> So release and acquire of the GPU can be done cooperatively.
>
> My problem is that, I have done partitioning of other resources but
> not sure how to share the GPU. What I have to do is save the buffers
> associated with current GPU owner in memory and restore later. I dont
> know much about GPU programming and am looking for pointers /any help
> which is possible.
>
> Also the solution I have to create has to be GPU agnostic.
>
> Please help me out.
>


-- 
-mj
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