linux-kernel - Re: [PATCH v4 3/4] iommu/mediatek: Add enable IOMMU SMC command for INFRA master

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Date:   Mon, 21 Nov 2022 05:17:47 +0000
From:   Yong Wu (吴勇) <Yong.Wu@...iatek.com>
To:     "robin.murphy@....com" <robin.murphy@....com>,
        "joro@...tes.org" <joro@...tes.org>,
        "will@...nel.org" <will@...nel.org>,
        Chengci Xu (许承赐) 
        <Chengci.Xu@...iatek.com>,
        "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>
CC:     "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        Project_Global_Chrome_Upstream_Group 
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        "iommu@...ts.linux.dev" <iommu@...ts.linux.dev>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [PATCH v4 3/4] iommu/mediatek: Add enable IOMMU SMC command for
 INFRA master

On Tue, 2022-10-18 at 14:42 +0800, Chengci.Xu wrote:
> The register which can enable IOMMU for INFRA master should be setted
> in secure world for security concerns. Therefore, we add a SMC
> command
> for INFRA master to enable/disable INFRA IOMMU in ATF. This function
> is
> prepared for MT8188.
> 
> Signed-off-by: Chengci.Xu <chengci.xu@...iatek.com>

Reviewed-by: Yong Wu <yong.wu@...iatek.com>