linux-kernel - Re: [PATCH v3 0/7] Nvidia Arm SMMUv2 Implementation

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Message-ID: <6d9e6425-fa69-9b76-b477-1fe50c459ca5@arm.com>
Date:   Tue, 22 Oct 2019 18:52:11 +0100
From:   Robin Murphy <robin.murphy@....com>
To:     Krishna Reddy <vdumpa@...dia.com>, will@...nel.org
Cc:     joro@...tes.org, linux-arm-kernel@...ts.infradead.org,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        linux-tegra@...r.kernel.org, treding@...dia.com, yhsu@...dia.com,
        snikam@...dia.com, praithatha@...dia.com, talho@...dia.com,
        avanbrunt@...dia.com, thomasz@...dia.com, olof@...om.net,
        jtukkinen@...dia.com, mperttunen@...dia.com, nicolinc@...dia.com
Subject: Re: [PATCH v3 0/7] Nvidia Arm SMMUv2 Implementation

Hi Krishna,

On 19/10/2019 00:31, Krishna Reddy wrote:
> Changes in v3:
> Rebased on top of https://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git/ next.
> Resolved compile error seen with tegra194.dtsi changes after rebase.

Apologies for crossed wires, but I had a series getting rid of 
arm_smmu_flush_ops which was also meant to end up making things a bit 
easier for you:

https://lore.kernel.org/linux-iommu/cover.1568820087.git.robin.murphy@arm.com/

Will, did you have any plans to push out an updates or iommu/devel 
branch for Krishna to base on?

Robin.

> 
> v2 - https://lkml.org/lkml/2019/9/2/980
> v1 - https://lkml.org/lkml/2019/8/29/1588
> 
> Krishna Reddy (7):
>    iommu/arm-smmu: prepare arm_smmu_flush_ops for override
>    iommu/arm-smmu: add NVIDIA implementation for dual ARM MMU-500 usage
>    dt-bindings: arm-smmu: Add binding for Tegra194 SMMU
>    iommu/arm-smmu: Add global/context fault implementation hooks
>    arm64: tegra: Add Memory controller DT node on T194
>    arm64: tegra: Add DT node for T194 SMMU
>    arm64: tegra: enable SMMU for SDHCI and EQOS on T194
> 
>   .../devicetree/bindings/iommu/arm,smmu.txt         |   4 +
>   MAINTAINERS                                        |   2 +
>   arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi     |   4 +
>   arch/arm64/boot/dts/nvidia/tegra194.dtsi           |  88 +++++++
>   drivers/iommu/Makefile                             |   2 +-
>   drivers/iommu/arm-smmu-impl.c                      |   3 +
>   drivers/iommu/arm-smmu-nvidia.c                    | 287 +++++++++++++++++++++
>   drivers/iommu/arm-smmu.c                           |  27 +-
>   drivers/iommu/arm-smmu.h                           |   8 +-
>   9 files changed, 413 insertions(+), 12 deletions(-)
>   create mode 100644 drivers/iommu/arm-smmu-nvidia.c
>