linux-kernel - iommu/mediatek: Add SVP support for mt8188

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Message-ID: <20230911011751.29906-1-yong.wu@mediatek.com>
Date:   Mon, 11 Sep 2023 09:17:47 +0800
From:   Yong Wu <yong.wu@...iatek.com>
To:     Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>
CC:     Robin Murphy <robin.murphy@....com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Yong Wu <yong.wu@...iatek.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>, <iommu@...ts.linux.dev>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <anan.sun@...iatek.com>,
        <yf.wang@...iatek.com>, <mingyuan.ma@...iatek.com>,
        "T . J . Mercier" <tjmercier@...gle.com>
Subject: iommu/mediatek: Add SVP support for mt8188

This patchset adds support for SVP(Secure video play). We always use the
last bank(id:4) to map secure memory. But the detail mapping and control
information are in the TEE. In kernel, We just register the IRQ to report
specific information when secure translation fault occurs.

Base on v6.6-rc1.

Yong Wu (4):
  iommu/mediatek: Initialise the secure bank
  iommu/mediatek: Add irq handle for secure bank
  iommu/mediatek: Avoid access secure bank register in runtime_suspend
  iommu/mediatek: mt8188: Enable secure bank for MM IOMMU

 drivers/iommu/mtk_iommu.c  | 94 +++++++++++++++++++++++++++-----------
 include/soc/mediatek/smi.h |  1 +
 2 files changed, 69 insertions(+), 26 deletions(-)

-- 
2.18.0