From: "xxm@rock-chips.com" <xxm@rock-chips.com>
To: robin.murphy <robin.murphy@arm.com>, hch <hch@lst.de>,
joro <joro@8bytes.org>, will <will@kernel.org>
Cc: linux-rockchip <linux-rockchip@lists.infradead.org>,
iommu <iommu@lists.linux-foundation.org>
Subject: Different type iommus integrated in a SoC
Date: Thu, 27 May 2021 10:37:32 +0800 [thread overview]
Message-ID: <2021052710373173260118@rock-chips.com> (raw)
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Hi all,
I have a SoC integrate with two different types of iommus, one is ARM SMMU, serves the PCIe/SATA/USB,
the others are vendor specific iommus, serves display device and multimedia device.
In the current linux kernel, the iommu framework seems only support one type iommu at runtime, if enable both types iommu, only one type can work.
Is there any way to support this kind of SoC?
Simon
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next reply other threads:[~2021-05-27 2:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-27 2:37 xxm [this message]
2021-06-03 12:05 ` Different type iommus integrated in a SoC Robin Murphy
2021-06-03 12:24 ` Peter Geis
2021-06-03 12:49 ` Robin Murphy
2021-06-04 15:44 ` joro
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