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Mon, 26 Oct 2020 13:08:42 -0700 (PDT) Received: from kozik-lap ([194.230.155.184]) by smtp.googlemail.com with ESMTPSA id f23sm6453141ejd.5.2020.10.26.13.08.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 Oct 2020 13:08:41 -0700 (PDT) Date: Mon, 26 Oct 2020 21:08:38 +0100 From: Krzysztof Kozlowski To: Yong Wu Subject: Re: [PATCH v3 00/24] MT8192 IOMMU support Message-ID: <20201026200838.GB240203@kozik-lap> References: <20200930070647.10188-1-yong.wu@mediatek.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200930070647.10188-1-yong.wu@mediatek.com> Cc: youlin.pei@mediatek.com, devicetree@vger.kernel.org, kernel-team@android.com, Nicolas Boichat , srv_heupstream@mediatek.com, chao.hao@mediatek.com, Robin Murphy , Greg Kroah-Hartman , linux-kernel@vger.kernel.org, Evan Green , Tomasz Figa , iommu@lists.linux-foundation.org, Rob Herring , linux-mediatek@lists.infradead.org, Matthias Brugger , ming-fan.chen@mediatek.com, anan.sun@mediatek.com, Will Deacon , linux-arm-kernel@lists.infradead.org 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: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On Wed, Sep 30, 2020 at 03:06:23PM +0800, Yong Wu wrote: > This patch mainly adds support for mt8192 IOMMU and SMI. > > mt8192 also is MTK IOMMU gen2 which uses ARM Short-Descriptor translation > table format. The M4U-SMI HW diagram is as below: > > EMI > | > M4U > | > ------------ > SMI Common > ------------ > | > +-------+------+------+----------------------+-------+ > | | | | ...... | | > | | | | | | > larb0 larb1 larb2 larb4 ...... larb19 larb20 > disp0 disp1 mdp vdec IPE IPE > > All the connections are HW fixed, SW can NOT adjust it. > > Comparing with the preview SoC, this patchset mainly adds two new functions: > a) add iova 34 bits support. > b) add multi domains support since several HW has the special iova > region requirement. > > this patchset depend on v5.9-rc1. Hi, I think there will be v4 of this, right? If yes, please also describe the dependencies between the patches. If the entire patchset is strictly ordered, then mention this as well. Best regards, Krzysztof _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu