linux-kernel - [PATCH v3 5/5] arm64: tegra210: Add IOMMU node to GM20B

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Date:	Mon, 28 Mar 2016 18:23:04 +0900
From:	Alexandre Courbot <acourbot@...dia.com>
To:	Stephen Warren <swarren@...dotorg.org>,
	Thierry Reding <thierry.reding@...il.com>
CC:	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-tegra@...r.kernel.org,
	gnurou@...il.com, Alexandre Courbot <acourbot@...dia.com>
Subject: [PATCH v3 5/5] arm64: tegra210: Add IOMMU node to GM20B

Nouveau can take advantage of this declaration to remove the need for
contiguous memory.

Signed-off-by: Alexandre Courbot <acourbot@...dia.com>
---
 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 04898cb25f0c..478543f74863 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
@@ -314,6 +314,9 @@
 		clock-names = "gpu", "pwr", "ref";
 		resets = <&tegra_car 184>;
 		reset-names = "gpu";
+
+		iommus = <&mc TEGRA_SWGROUP_GPU>;
+
 		status = "disabled";
 	};
 
-- 
2.7.3