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Thu, 27 May 2021 10:37:32 +0800 (CST) X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-ADDR-CHECKED4: 1 X-ANTISPAM-LEVEL: 2 X-SKE-CHECKED: 1 X-ABS-CHECKED: 1 Received: from desktop-7uo2irf (unknown [58.22.7.114]) by smtp.263.net (postfix) whith ESMTP id P31747T140095115986688S1622083051355302_; Thu, 27 May 2021 10:37:31 +0800 (CST) X-IP-DOMAINF: 1 X-UNIQUE-TAG: <4fe6567fd536a59e612fff8b32aeeca6> X-RL-SENDER: xxm@rock-chips.com X-SENDER: xxm@rock-chips.com X-LOGIN-NAME: xxm@rock-chips.com X-FST-TO: robin.murphy@arm.com X-RCPT-COUNT: 6 X-SENDER-IP: 58.22.7.114 X-ATTACHMENT-NUM: 0 X-System-Flag: 0 Date: Thu, 27 May 2021 10:37:32 +0800 From: "xxm@rock-chips.com" To: robin.murphy , hch , joro , will Subject: Different type iommus integrated in a SoC X-Priority: 3 X-Has-Attach: no X-Mailer: Foxmail 7.2.16.188[cn] Mime-Version: 1.0 Message-ID: <2021052710373173260118@rock-chips.com> Cc: linux-rockchip , iommu 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; 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Hi all,

I have a SoC integrate with two differ= ent types of iommus, one is ARM SMMU,&n= bsp;serves the PCIe/SATA/USB,
the others are v= endor specific iommus, serves display device = ;and multimedia device.

In the current lin= ux kernel, the iommu framework seems only&nb= sp;support one type iommu at runtime, if&nbs= p;enable both types iommu, only one type&nbs= p;can work.
Is there any way to support&n= bsp;this kind of SoC? 


=0A
Simon
=0A
=0A ------=_001_NextPart340720075514_=------ --===============8685753940723373131== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu --===============8685753940723373131==--