Re: [PATCH] arm64: tegra: Add SMMU node for Tegra186

[Mikko Perttunen <cyndis@xxxxxxxx>]

Reviewed-by: Mikko Perttunen <mperttunen@xxxxxxxxxx>
Tested-by: Mikko Perttunen <mperttunen@xxxxxxxxxx>

Tested to work with Host1x :)

I noticed a slight difference with downstream where downstream has 
global interrupts 170 and 171 - but looks like the latter is for secure 
faults which we should never get so this way seems more correct.

Thanks,
Mikko

On 14.09.2017 02:01, Krishna Reddy wrote:
> Add the DT node for ARM SMMU on Tegra186.
>
> Signed-off-by: Krishna Reddy <vdumpa@xxxxxxxxxx>
> ---
>  arch/arm64/boot/dts/nvidia/tegra186.dtsi | 73 ++++++++++++++++++++++++++++++++
>  1 file changed, 73 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
> index 0b0552c9f7dd..e2c3ad203c93 100644
> --- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi
> +++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
> @@ -355,6 +355,79 @@
>  		nvidia,bpmp = <&bpmp>;
>  	};
>
> +	smmu: iommu@12000000 {
> +		compatible = "arm,mmu-500";
> +		reg = <0 0x12000000 0 0x800000>;
> +		#global-interrupts = <1>;
> +		interrupts = <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>;
> +		#iommu-cells = <1>;
> +		stream-match-mask = <0x7F80>;
> +	};
> +
>  	gpu@17000000 {
>  		compatible = "nvidia,gp10b";
>  		reg = <0x0 0x17000000 0x0 0x1000000>,
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