Thread (23 messages) 23 messages, 4 authors, 2026-08-25

[PATCH v5 09/10] arm64: tegra: Hook up VPR to host1x

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From: Thierry Reding <thierry.reding@kernel.org>
Date: 2026-08-14 15:30:03
Also in: dri-devel, linux-devicetree, linux-iommu, linux-media, linux-mm, linux-s390, linux-tegra, lkml
Subsystem: the rest · Maintainer: Linus Torvalds

Revision v5 of 4 in this series.

Revisions (4)
  1. v3 [diff vs current]
  2. v4 [diff vs current]
  3. v5 current
  4. v6 [diff vs current]
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
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