From: Thierry Reding <thierry.reding@gmail.com>
To: Ashish Mhetre <amhetre@nvidia.com>
Cc: will@kernel.org, robin.murphy@arm.com, joro@8bytes.org,
robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org,
nicolinc@nvidia.com, jonathanh@nvidia.com, vdumpa@nvidia.com,
jgg@ziepe.ca, linux-arm-kernel@lists.infradead.org,
iommu@lists.linux.dev, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org
Subject: Re: [PATCH V8 3/4] dt-bindings: iommu: Add NVIDIA Tegra CMDQV support
Date: Fri, 16 Jan 2026 13:44:02 +0100 [thread overview]
Message-ID: <aWoyh0e2ncSsNW9y@orome> (raw)
In-Reply-To: <20260113054935.1945785-4-amhetre@nvidia.com>
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On Tue, Jan 13, 2026 at 05:49:34AM +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.
>
> Add a new device tree binding document for nvidia,tegra264-cmdqv.
>
> Also update the arm,smmu-v3 binding to include an optional nvidia,cmdqv
> property. This property is a phandle to the CMDQV device node, allowing
> the SMMU driver to associate with its corresponding CMDQV instance.
> Restrict this property usage to Nvidia Tegra264 only.
>
> Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
> Acked-by: Nicolin Chen <nicolinc@nvidia.com>
> Signed-off-by: Ashish Mhetre <amhetre@nvidia.com>
> ---
> .../bindings/iommu/arm,smmu-v3.yaml | 27 +++++++++++-
> .../bindings/iommu/nvidia,tegra264-cmdqv.yaml | 42 +++++++++++++++++++
> 2 files changed, 68 insertions(+), 1 deletion(-)
> create mode 100644 Documentation/devicetree/bindings/iommu/nvidia,tegra264-cmdqv.yaml
Applied, thanks.
Thierry
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next prev parent reply other threads:[~2026-01-16 12:44 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-13 5:49 [PATCH V8 0/4] Add device tree support for NVIDIA Tegra CMDQV Ashish Mhetre
2026-01-13 5:49 ` [PATCH V8 1/4] iommu/tegra241-cmdqv: Decouple driver from ACPI Ashish Mhetre
2026-01-13 5:49 ` [PATCH V8 2/4] iommu/arm-smmu-v3: Add device-tree support for CMDQV driver Ashish Mhetre
2026-01-14 15:23 ` Jon Hunter
2026-01-13 5:49 ` [PATCH V8 3/4] dt-bindings: iommu: Add NVIDIA Tegra CMDQV support Ashish Mhetre
2026-01-14 15:23 ` Jon Hunter
2026-01-16 12:44 ` Thierry Reding [this message]
2026-01-13 5:49 ` [PATCH V8 4/4] arm64: dts: nvidia: Add nodes for CMDQV Ashish Mhetre
2026-01-14 15:28 ` Jon Hunter
2026-01-16 12:44 ` Thierry Reding
2026-01-23 17:49 ` [PATCH V8 0/4] Add device tree support for NVIDIA Tegra CMDQV Will Deacon
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