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Subject: Re: [PATCH v11,14/19] media: mtk-vcodec: Support 34bits dma address
 for vdec
To:     Yunfei Dong <yunfei.dong@mediatek.com>,
        Alexandre Courbot <acourbot@chromium.org>,
        Hans Verkuil <hverkuil-cisco@xs4all.nl>,
        Tzung-Bi Shih <tzungbi@chromium.org>,
        Tiffany Lin <tiffany.lin@mediatek.com>,
        Andrew-CT Chen <andrew-ct.chen@mediatek.com>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        Tomasz Figa <tfiga@google.com>
Cc:     Hsin-Yi Wang <hsinyi@chromium.org>,
        Fritz Koenig <frkoenig@chromium.org>,
        Dafna Hirschfeld <dafna.hirschfeld@collabora.com>,
        Benjamin Gaignard <benjamin.gaignard@collabora.com>,
        Daniel Vetter <daniel@ffwll.ch>,
        dri-devel <dri-devel@lists.freedesktop.org>,
        Irui Wang <irui.wang@mediatek.com>,
        linux-media@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        srv_heupstream@mediatek.com, linux-mediatek@lists.infradead.org,
        Project_Global_Chrome_Upstream_Group@mediatek.com
References: <20211129034201.5767-1-yunfei.dong@mediatek.com>
 <20211129034201.5767-15-yunfei.dong@mediatek.com>
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>
Message-ID: <26b6cd92-c096-1b3b-236d-c9bbc68ff78c@collabora.com>
Date:   Wed, 1 Dec 2021 13:09:00 +0100
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Il 29/11/21 04:41, Yunfei Dong ha scritto:
> Use the dma_set_mask_and_coherent helper to set vdec
> DMA bit mask to support 34bits iova space(16GB) that
> the mt8192 iommu HW support.
> 
> Whole the iova range separate to 0~4G/4G~8G/8G~12G/12G~16G,
> regarding which iova range VDEC actually locate, it
> depends on the dma-ranges property of vdec dtsi node.
> 
> Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>


Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>