ARM: tegra: Add IOMMU node to GK20A

Nouveau can make use of the IOMMU to make physical appear linear in the
GPU address space.

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

diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
index 87318a72f615dcb76ab71fce7af59655193809dc..f72a7529fc039d575c13502e2f3c47ba8f5b32e1 100644 (file)
--- a/arch/arm/boot/dts/tegra124.dtsi
+++ b/arch/arm/boot/dts/tegra124.dtsi
@@ -189,6 +189,9 @@
                clock-names = "gpu", "pwr";
                resets = <&tegra_car 184>;
                reset-names = "gpu";
+
+               iommus = <&mc TEGRA_SWGROUP_GPU>;
+
                status = "disabled";
        };