linux-kernel - [RFC PATCH V2 0/2] Add Unisoc iommu basic driver

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Message-Id: <20210108113851.354947-1-zhang.lyra@gmail.com>
Date:   Fri,  8 Jan 2021 19:38:49 +0800
From:   Chunyan Zhang <zhang.lyra@...il.com>
To:     Joerg Roedel <joro@...tes.org>, Rob Herring <robh+dt@...nel.org>
Cc:     iommu@...ts.linux-foundation.org, devicetree@...r.kernel.org,
        Baolin Wang <baolin.wang7@...il.com>,
        linux-kernel@...r.kernel.org, Orson Zhai <orsonzhai@...il.com>,
        Chunyan Zhang <zhang.lyra@...il.com>,
        Sheng Xu <sheng.xu@...soc.com>,
        Kevin Tang <kevin.tang@...soc.com>,
        Chunyan Zhang <chunyan.zhang@...soc.com>
Subject: [RFC PATCH V2 0/2] Add Unisoc iommu basic driver

From: Chunyan Zhang <chunyan.zhang@...soc.com>

Changes since RFC v1:
* Rebased on v5.11-rc1;
* Changed sprd-iommu to tristate;
* Removed check for args_count of iommu OF node, since there's no args
  for sprd-iommu device node;
* Added another IP version (i.e. vau);
* Removed unnecessary configs selection from CONFIG_SPRD_IOMMU;
* Changed to get zeroed pages.

Chunyan Zhang (2):
  dt-bindings: iommu: add bindings for sprd iommu
  iommu: add Unisoc iommu basic driver

 .../devicetree/bindings/iommu/sprd,iommu.yaml |  44 ++
 drivers/iommu/Kconfig                         |  12 +
 drivers/iommu/Makefile                        |   1 +
 drivers/iommu/sprd-iommu.c                    | 546 ++++++++++++++++++
 4 files changed, 603 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iommu/sprd,iommu.yaml
 create mode 100644 drivers/iommu/sprd-iommu.c

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2.25.1