linux-kernel - Re: [PATCH 0/7 v7] Support for fsl-mc bus and its devices in SMMU

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Date:   Wed, 12 Sep 2018 17:58:45 +0100
From:   Will Deacon <will.deacon@....com>
To:     Nipun Gupta <nipun.gupta@....com>
Cc:     joro@...tes.org, robin.murphy@....com, robh+dt@...nel.org,
        robh@...nel.org, mark.rutland@....com, catalin.marinas@....com,
        gregkh@...uxfoundation.org, laurentiu.tudor@....com,
        bhelgaas@...gle.com, hch@....de, m.szyprowski@...sung.com,
        shawnguo@...nel.org, frowand.list@...il.com,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linuxppc-dev@...ts.ozlabs.org, linux-pci@...r.kernel.org,
        bharat.bhushan@....com, stuyoder@...il.com, leoyang.li@....com
Subject: Re: [PATCH 0/7 v7] Support for fsl-mc bus and its devices in SMMU

Hi Nipun,

On Mon, Sep 10, 2018 at 07:19:14PM +0530, Nipun Gupta wrote:
> This patchset defines IOMMU DT binding for fsl-mc bus and adds
> support in SMMU for fsl-mc bus.
> 
> These patches
>   - Define property 'iommu-map' for fsl-mc bus (patch 1)
>   - Integrates the fsl-mc bus with the SMMU using this
>     IOMMU binding (patch 2,3,4)
>   - Adds the dma configuration support for fsl-mc bus (patch 5, 6)
>   - Updates the fsl-mc device node with iommu/dma related changes (patch 7)

It looks like you have all the Acks in place for this series now, so I
assume it's going to go via Joerg directly. Is that right?

Will

> Changes in v2:
>   - use iommu-map property for fsl-mc bus
>   - rebase over patchset https://patchwork.kernel.org/patch/10317337/
>     and make corresponding changes for dma configuration of devices on
>     fsl-mc bus
> 
> Changes in v3:
>   - move of_map_rid in drivers/of/address.c
> 
> Changes in v4:
>   - move of_map_rid in drivers/of/base.c
> 
> Changes in v5:
>   - break patch 5 in two separate patches (now patch 5/7 and patch 6/7)
>   - add changelog text in patch 3/7 and patch 5/7
>   - typo fix
> 
> Changes in v6:
>   - Updated fsl_mc_device_group() API to be more rational
>   - Added dma-coherent property in the LS2 smmu device node
>   - Minor fixes in the device-tree documentation
> 
> Changes in v7:
>   - Rebased over linux 4.19
> 
> Nipun Gupta (7):
>   Documentation: fsl-mc: add iommu-map device-tree binding for fsl-mc
>     bus
>   iommu/of: make of_pci_map_rid() available for other devices too
>   iommu/of: support iommu configuration for fsl-mc devices
>   iommu/arm-smmu: Add support for the fsl-mc bus
>   bus: fsl-mc: support dma configure for devices on fsl-mc bus
>   bus: fsl-mc: set coherent dma mask for devices on fsl-mc bus
>   arm64: dts: ls208xa: comply with the iommu map binding for fsl_mc
> 
>  .../devicetree/bindings/misc/fsl,qoriq-mc.txt      |  39 ++++++++
>  arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi     |   7 +-
>  drivers/bus/fsl-mc/fsl-mc-bus.c                    |  16 +++-
>  drivers/iommu/arm-smmu.c                           |   7 ++
>  drivers/iommu/iommu.c                              |  13 +++
>  drivers/iommu/of_iommu.c                           |  25 ++++-
>  drivers/of/base.c                                  | 102 +++++++++++++++++++++
>  drivers/of/irq.c                                   |   5 +-
>  drivers/pci/of.c                                   | 101 --------------------
>  include/linux/fsl/mc.h                             |   8 ++
>  include/linux/iommu.h                              |   2 +
>  include/linux/of.h                                 |  11 +++
>  include/linux/of_pci.h                             |  10 --
>  13 files changed, 224 insertions(+), 122 deletions(-)
> 
> -- 
> 1.9.1
>