From 30f949bc6682d4912dbc74e7e757c66b3e3a6469 Mon Sep 17 00:00:00 2001 From: Alexandre Courbot Date: Mon, 28 Mar 2016 18:23:04 +0900 Subject: [PATCH] arm64: tegra: Add IOMMU node to GM20B on Tegra210 The operating system driver can take advantage of the IOMMU to remove the need for physically contiguous memory buffers. Signed-off-by: Alexandre Courbot Signed-off-by: Thierry Reding --- arch/arm64/boot/dts/nvidia/tegra210.dtsi | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi index 687d354439ea..d0b426b9aeaf 100644 --- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi @@ -231,6 +231,9 @@ clock-names = "gpu", "pwr", "ref"; resets = <&tegra_car 184>; reset-names = "gpu"; + + iommus = <&mc TEGRA_SWGROUP_GPU>; + status = "disabled"; }; -- GitLab