From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To: "Chengci.Xu" <chengci.xu@mediatek.com>,
Yong Wu <yong.wu@mediatek.com>, Joerg Roedel <joro@8bytes.org>,
Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Matthias Brugger <matthias.bgg@gmail.com>
Cc: iommu@lists.linux.dev, linux-mediatek@lists.infradead.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Project_Global_Chrome_Upstream_Group@mediatek.com
Subject: Re: [PATCH v3 1/3] dt-bindings: mediatek: mt8188: Add binding for MM & INFRA IOMMU
Date: Mon, 19 Sep 2022 13:05:16 +0200 [thread overview]
Message-ID: <2e2a7dbb-ba8a-3406-b54d-0ca135193c3c@linaro.org> (raw)
In-Reply-To: <20220919082611.19824-2-chengci.xu@mediatek.com>
On 19/09/2022 10:26, Chengci.Xu wrote:
> Adds descriptions for mt8188 IOMMU which also use ARM Short-Descriptor
> translation table format.
>
> In mt8188, there are two smi-common HW and IOMMU, one is for vdo(video
> output), the other is for vpp(video processing pipe). They connects
> with different smi-larbs, then some setting(larbid_remap) is different.
> Differentiate them with the compatible string.
>
> Something like this:
>
> IOMMU(VDO) IOMMU(VPP)
> | |
> SMI_COMMON_VDO SMI_COMMON_VPP
> --------------- ----------------
> | | ... | | ...
> larb0 larb2 ... larb1 larb3 ...
>
> We also have an IOMMU that is for infra master like PCIe.
> And infra master don't have the larb and ports.
>
> Signed-off-by: Chengci.Xu <chengci.xu@mediatek.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Best regards,
Krzysztof
next prev parent reply other threads:[~2022-09-19 11:05 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-19 8:26 [PATCH v3 0/3] MT8188 IOMMU SUPPORT Chengci.Xu
2022-09-19 8:26 ` [PATCH v3 1/3] dt-bindings: mediatek: mt8188: Add binding for MM & INFRA IOMMU Chengci.Xu
2022-09-19 11:05 ` Krzysztof Kozlowski [this message]
2022-09-19 8:26 ` [PATCH v3 2/3] iommu/mediatek: Add enable IOMMU SMC command for INFRA master Chengci.Xu
2022-09-20 9:01 ` AngeloGioacchino Del Regno
2022-09-19 8:26 ` [PATCH v3 3/3] iommu/mediatek: Add MT8188 IOMMU Support Chengci.Xu
2022-09-20 9:02 ` AngeloGioacchino Del Regno
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