linux-kernel - Re: [PATCH v4 00/24] iommu: Refactor DMA domain strictness

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Date:   Wed, 18 Aug 2021 16:13:24 +0100
From:   Robin Murphy <robin.murphy@....com>
To:     Joerg Roedel <joro@...tes.org>, Sven Peter <sven@...npeter.dev>
Cc:     will@...nel.org, iommu@...ts.linux-foundation.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        suravee.suthikulpanit@....com, baolu.lu@...ux.intel.com,
        john.garry@...wei.com, dianders@...omium.org, rajatja@...gle.com,
        chenxiang66@...ilicon.com,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Yong Wu <yong.wu@...iatek.com>,
        Heiko Stuebner <heiko@...ech.de>,
        Chunyan Zhang <chunyan.zhang@...soc.com>,
        Maxime Ripard <mripard@...nel.org>,
        Jean-Philippe Brucker <jean-philippe@...aro.org>
Subject: Re: [PATCH v4 00/24] iommu: Refactor DMA domain strictness

On 2021-08-18 12:29, Joerg Roedel wrote:
> On Wed, Aug 11, 2021 at 01:21:14PM +0100, Robin Murphy wrote:
>> Robin Murphy (24):
>>    iommu: Pull IOVA cookie management into the core
>>    iommu/amd: Drop IOVA cookie management
>>    iommu/arm-smmu: Drop IOVA cookie management
>>    iommu/vt-d: Drop IOVA cookie management
>>    iommu/exynos: Drop IOVA cookie management
>>    iommu/ipmmu-vmsa: Drop IOVA cookie management
>>    iommu/mtk: Drop IOVA cookie management
>>    iommu/rockchip: Drop IOVA cookie management
>>    iommu/sprd: Drop IOVA cookie management
>>    iommu/sun50i: Drop IOVA cookie management
>>    iommu/virtio: Drop IOVA cookie management
>>    iommu/dma: Unexport IOVA cookie management
>>    iommu/dma: Remove redundant "!dev" checks
>>    iommu: Indicate queued flushes via gather data
>>    iommu/io-pgtable: Remove non-strict quirk
>>    iommu: Introduce explicit type for non-strict DMA domains
>>    iommu/amd: Prepare for multiple DMA domain types
>>    iommu/arm-smmu: Prepare for multiple DMA domain types
>>    iommu/vt-d: Prepare for multiple DMA domain types
>>    iommu: Express DMA strictness via the domain type
>>    iommu: Expose DMA domain strictness via sysfs
>>    iommu: Only log strictness for DMA domains
>>    iommu: Merge strictness and domain type configs
>>    iommu: Allow enabling non-strict mode dynamically
> 
> Applied all except patch 12. Please re-submit patch 12 together with the
> APPLE DART fixups after v5.15-rc1 is out.

Brilliant, thanks for fixing that up!

Sven - I've prepared the follow-up patches already[1], so consider 
yourself off the hook (I see no point in trying to fix the nominal DART 
cookie bugs between now and then) :)

Cheers,
Robin.

[1] https://gitlab.arm.com/linux-arm/linux-rm/-/commits/iommu/fq-fixes