# \[PATCH v6 11/12\] arm64: tegra: Hook up VPR to host1x

- From: Thierry Reding \<thierry.reding@kernel.org\>
- Date: 2026-09-04 10:45:51 
- List: linux-trace-kernel
- Page: https://ratatoskr.run/linux-trace-kernel/2026/09/17512980
- Thread: https://ratatoskr.run/linux-devicetree/2026/09/17512969/t.md

```text
From: Thierry Reding <redacted>

The host1x needs access to the VPR region, so make sure to reference it
via the memory-region property.

Signed-off-by: Thierry Reding <redacted>
---
 arch/arm64/boot/dts/nvidia/tegra234.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
index 6c4739efc8a5..c6a5ced069e7 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
@@ -4479,6 +4479,9 @@ vic@15340000 {
 				interconnect-names = "dma-mem", "write";
 				iommus = <&smmu_niso1 TEGRA234_SID_VIC>;
 				dma-coherent;
+
+				memory-region = <&vpr>;
+				memory-region-names = "protected";
 			};
 
 			nvdec@15480000 {
@@ -4497,6 +4500,9 @@ nvdec@15480000 {
 				iommus = <&smmu_niso1 TEGRA234_SID_NVDEC>;
 				dma-coherent;
 
+				memory-region = <&vpr>;
+				memory-region-names = "protected";
+
 				nvidia,memory-controller = <&mc>;
 
 				/*

-- 
2.55.0

```