linux-kernel - Re: [PATCH 0/2] iommu/exynos: Add fault handling on SysMMU v7

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Date:   Mon, 8 Aug 2022 20:18:58 +0300
From:   Sam Protsenko <semen.protsenko@...aro.org>
To:     Marek Szyprowski <m.szyprowski@...sung.com>
Cc:     Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Janghyuck Kim <janghyuck.kim@...sung.com>,
        Cho KyongHo <pullip.cho@...sung.com>,
        Daniel Mentz <danielmentz@...gle.com>,
        David Virag <virag.david003@...il.com>,
        Sumit Semwal <sumit.semwal@...aro.org>, iommu@...ts.linux.dev,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: Re: [PATCH 0/2] iommu/exynos: Add fault handling on SysMMU v7

On Tue, 26 Jul 2022 at 23:07, Sam Protsenko <semen.protsenko@...aro.org> wrote:
>
> Exynos IOMMU driver implements fault handling for SysMMU v1..v5. But the
> abstraction currently used is not suited for SysMMU v7, as it has quite
> different fault related register set.
>
> This patch series reworks the mentioned fault handling abstraction and
> adds fault handling support for SysMMU v7.
>
> Sam Protsenko (2):
>   iommu/exynos: Abstract getting the fault info
>   iommu/exynos: Implement fault handling on SysMMU v7
>
>  drivers/iommu/exynos-iommu.c | 208 ++++++++++++++++++++++++-----------
>  1 file changed, 143 insertions(+), 65 deletions(-)
>
> --
> 2.30.2
>

Hi Marek,

Can you please review and test this series? I only have my E850 (which
has VM-capable SysMMU register layout). So it would be nice to check
if it works fine with non-VM SysMMU v7 and older versions.

Thanks!