From: Alexandre Courbot <acourbot@nvidia.com>
Date: Mon, 28 Mar 2016 09:23:04 +0000 (+0900)
Subject: arm64: tegra: Add IOMMU node to GM20B on Tegra210
X-Git-Tag: v4.7-rc1~135^2~2^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=30f949bc6682d4912dbc74e7e757c66b3e3a6469;p=thirdparty%2Fkernel%2Flinux.git

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 <acourbot@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---

diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
index 687d354439ea1..d0b426b9aeaff 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";
 	};