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[1/4] ARM: tegra: Add IOMMU node to GK20A

Message ID 1435742028-8237-2-git-send-email-acourbot@nvidia.com
State Accepted
Headers show

Commit Message

Alexandre Courbot July 1, 2015, 9:13 a.m. UTC 
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>
---
 arch/arm/boot/dts/tegra124.dtsi | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
index 13cc7ca5e031..bffe90236bf8 100644
--- a/arch/arm/boot/dts/tegra124.dtsi
+++ b/arch/arm/boot/dts/tegra124.dtsi
@@ -188,6 +188,9 @@ 
 		clock-names = "gpu", "pwr";
 		resets = <&tegra_car 184>;
 		reset-names = "gpu";
+
+		iommus = <&mc TEGRA_SWGROUP_GPU>;
+
 		status = "disabled";
 	};