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Wed, 16 Feb 2022 05:25:24 -0800 (PST) Received: from orome ([193.209.96.43]) by smtp.gmail.com with ESMTPSA id y39sm2987078lfa.27.2022.02.16.05.25.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Feb 2022 05:25:22 -0800 (PST) Date: Wed, 16 Feb 2022 14:25:20 +0100 From: Thierry Reding To: Joerg Roedel , Will Deacon , Robin Murphy , Rob Herring Subject: Re: [PATCH v2 1/4] dt-bindings: arm-smmu: Document nvidia,memory-controller property Message-ID: References: <20211209163600.609613-1-thierry.reding@gmail.com> MIME-Version: 1.0 In-Reply-To: <20211209163600.609613-1-thierry.reding@gmail.com> User-Agent: Mutt/2.2 (7160e05a) (2022-02-12) Cc: linux-tegra@vger.kernel.org, devicetree@vger.kernel.org, iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, Jon Hunter X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============8779407373079047089==" Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" --===============8779407373079047089== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="QdP3IMTJOvZvvtKr" Content-Disposition: inline --QdP3IMTJOvZvvtKr Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Dec 09, 2021 at 05:35:57PM +0100, Thierry Reding wrote: > From: Thierry Reding >=20 > On NVIDIA SoC's the ARM SMMU needs to interact with the memory > controller in order to map memory clients to the corresponding stream > IDs. Document how the nvidia,memory-controller property can be used to > achieve this. >=20 > Note that this is a backwards-incompatible change that is, however, > necessary to ensure correctness. Without the new property, most of the > devices would still work but it is not guaranteed that all will. >=20 > Signed-off-by: Thierry Reding > --- > Changes in v2: > - clarify why the new nvidia,memory-controller property is required >=20 > .../devicetree/bindings/iommu/arm,smmu.yaml | 17 +++++++++++++++++ > 1 file changed, 17 insertions(+) Hi Joerg, can you pick up patches 1-3 of this series? DT bindings have been reviewed by Rob and Will acked the ARM SMMU change. I can take the device tree changes (patch 4) through the Tegra tree. 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