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[66.90.148.213]) by smtp.gmail.com with ESMTPSA id x17sm588157oot.30.2021.12.15.11.16.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Dec 2021 11:16:24 -0800 (PST) Received: (nullmailer pid 1673469 invoked by uid 1000); Wed, 15 Dec 2021 19:16:23 -0000 Date: Wed, 15 Dec 2021 13:16:23 -0600 From: Rob Herring To: Thierry Reding Cc: Joerg Roedel , Rob Herring , Robin Murphy , iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, Jon Hunter , linux-tegra@vger.kernel.org, devicetree@vger.kernel.org, Will Deacon 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 Content-Disposition: inline In-Reply-To: <20211209163600.609613-1-thierry.reding@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211215_111627_376634_D36D69A3 X-CRM114-Status: GOOD ( 15.70 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, 09 Dec 2021 17:35:57 +0100, Thierry Reding wrote: > From: Thierry Reding > > 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. > > 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. > > Signed-off-by: Thierry Reding > --- > Changes in v2: > - clarify why the new nvidia,memory-controller property is required > > .../devicetree/bindings/iommu/arm,smmu.yaml | 17 +++++++++++++++++ > 1 file changed, 17 insertions(+) > Reviewed-by: Rob Herring _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel