linux-kernel - Re: [PATCH V8 4/4] arm64: dts: nvidia: Add nodes for CMDQV

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Message-ID: <aWoymh04hKXsADa-@orome>
Date: Fri, 16 Jan 2026 13:44:35 +0100
From: Thierry Reding <thierry.reding@...il.com>
To: Ashish Mhetre <amhetre@...dia.com>
Cc: will@...nel.org, robin.murphy@....com, joro@...tes.org, 
	robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org, nicolinc@...dia.com, 
	jonathanh@...dia.com, vdumpa@...dia.com, jgg@...pe.ca, 
	linux-arm-kernel@...ts.infradead.org, iommu@...ts.linux.dev, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-tegra@...r.kernel.org
Subject: Re: [PATCH V8 4/4] arm64: dts: nvidia: Add nodes for CMDQV

On Tue, Jan 13, 2026 at 05:49:35AM +0000, Ashish Mhetre wrote:
> The Command Queue Virtualization (CMDQV) hardware is part of the
> SMMUv3 implementation on NVIDIA Tegra SoCs. It assists in
> virtualizing the command queue for the SMMU.
> 
> Update SMMU compatible strings to use nvidia,tegra264-smmu to enable
> CMDQV support. Add device tree nodes for the CMDQV hardware and enable
> them on the tegra264-p3834 platform where SMMUs are enabled. Each SMMU
> instance is paired with its corresponding CMDQV instance via the
> nvidia,cmdqv property.
> 
> Reviewed-by: Jon Hunter <jonathanh@...dia.com>
> Acked-by: Nicolin Chen <nicolinc@...dia.com>
> Signed-off-by: Ashish Mhetre <amhetre@...dia.com>
> ---
>  .../arm64/boot/dts/nvidia/tegra264-p3834.dtsi |  8 +++
>  arch/arm64/boot/dts/nvidia/tegra264.dtsi      | 50 +++++++++++++++++--
>  2 files changed, 53 insertions(+), 5 deletions(-)

Applied, with the tags rearranged and the subject prefix fixed.

Thanks,
Thierry

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