linux-kernel - Re: [PATCH v8 6/8] ARM: dts: sun7i-a20: Add Video Engine and reserved memory nodes

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Message-ID: <20180828145504.473xga3lur372wld@flea>
Date:   Tue, 28 Aug 2018 16:55:04 +0200
From:   Maxime Ripard <maxime.ripard@...tlin.com>
To:     Paul Kocialkowski <paul.kocialkowski@...tlin.com>
Cc:     linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        devel@...verdev.osuosl.org,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Chen-Yu Tsai <wens@...e.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Randy Li <ayaka@...lik.info>,
        Hans Verkuil <hverkuil@...all.nl>,
        Ezequiel Garcia <ezequiel@...labora.com>,
        Tomasz Figa <tfiga@...omium.org>,
        Alexandre Courbot <acourbot@...omium.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        linux-sunxi@...glegroups.com
Subject: Re: [PATCH v8 6/8] ARM: dts: sun7i-a20: Add Video Engine and
 reserved memory nodes

On Tue, Aug 28, 2018 at 09:34:22AM +0200, Paul Kocialkowski wrote:
> This adds nodes for the Video Engine and the associated reserved memory
> for the A20. Up to 96 MiB of memory are dedicated to the CMA pool.
> 
> The VPU can only map the first 256 MiB of DRAM, so the reserved memory
> pool has to be located in that area. Following Allwinner's decision in
> downstream software, the last 96 MiB of the first 256 MiB of RAM are
> reserved for this purpose.
> 
> Signed-off-by: Paul Kocialkowski <paul.kocialkowski@...tlin.com>

Acked-by: Maxime Ripard <maxime.ripard@...tlin.com>

Maxime

-- 
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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