On Monday, 13 August 2018 17:50:27 MSK Thierry Reding wrote:
> From: Thierry Reding <tred...@nvidia.com>
>
> The video decode engine can use the SMMU to use buffers that are not
> physically contiguous in memory. This allows better memory usage for
> video decoding, since fragmentation may cause contiguous allocations
> to fail.
>
> Signed-off-by: Thierry Reding <tred...@nvidia.com>
> ---
> arch/arm/boot/dts/tegra124.dtsi | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm/boot/dts/tegra124.dtsi
> b/arch/arm/boot/dts/tegra124.dtsi index 8fdca4723205..0713e0ed5fef 100644
> --- a/arch/arm/boot/dts/tegra124.dtsi
> +++ b/arch/arm/boot/dts/tegra124.dtsi
> @@ -321,6 +321,8 @@
> resets = <&tegra_car 61>,
> <&tegra_car 63>;
> reset-names = "vde", "bsev";
> +
> + iommus = <&mc TEGRA_SWGROUP_VDE>;
> };
>
> apbdma: dma@60020000 {
Reviewed-by: Dmitry Osipenko <dig...@gmail.com>
The same should be applied to Tegra30.
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