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From: Robin Murphy <robin.murphy@arm.com>
To: Christoph Hellwig <hch@lst.de>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>
Cc: Joerg Roedel <joro@8bytes.org>,
	Tom Lendacky <thomas.lendacky@amd.com>,
	iommu@lists.linux-foundation.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: implement generic dma_map_ops for IOMMUs v3
Date: Mon, 29 Apr 2019 16:03:29 +0100	[thread overview]
Message-ID: <9ae8ce99-65a8-711d-b17d-165df7e280d4@arm.com> (raw)
In-Reply-To: <20190422175942.18788-1-hch@lst.de>

On 22/04/2019 18:59, Christoph Hellwig wrote:
> Hi Robin,
> 
> please take a look at this series, which implements a completely generic
> set of dma_map_ops for IOMMU drivers.  This is done by taking the
> existing arm64 code, moving it to drivers/iommu and then massaging it
> so that it can also work for architectures with DMA remapping.  This
> should help future ports to support IOMMUs more easily, and also allow
> to remove various custom IOMMU dma_map_ops implementations, like Tom
> was planning to for the AMD one.

Modulo a few nits, I think this looks pretty much good to go, and it 
would certainly be good to get as much as reasonable queued soon for the 
sake of progress elsewhere.

Catalin, Will, I think the arm64 parts are all OK but please take a look 
to confirm.

Thanks,
Robin.

> 
> A git tree is also available at:
> 
>      git://git.infradead.org/users/hch/misc.git dma-iommu-ops.3
> 
> Gitweb:
> 
>      http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/dma-iommu-ops.3
> 
> Changes since v2:
>   - address various review comments and include patches from Robin
> 
> Changes since v1:
>   - only include other headers in dma-iommu.h if CONFIG_DMA_IOMMU is enabled
>   - keep using a scatterlist in iommu_dma_alloc
>   - split out mmap/sgtable fixes and move them early in the series
>   - updated a few commit logs
> 

      parent reply	other threads:[~2019-04-29 15:03 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-22 17:59 implement generic dma_map_ops for IOMMUs v3 Christoph Hellwig
2019-04-22 17:59 ` [PATCH 01/26] arm64/iommu: handle non-remapped addresses in ->mmap and ->get_sgtable Christoph Hellwig
2019-04-22 17:59 ` [PATCH 02/26] arm64/iommu: improve mmap bounds checking Christoph Hellwig
2019-04-29 12:35   ` Robin Murphy
2019-04-29 19:01     ` Christoph Hellwig
2019-04-30 11:38       ` Robin Murphy
2019-04-22 17:59 ` [PATCH 03/26] dma-mapping: add a Kconfig symbol to indicated arch_dma_prep_coherent presence Christoph Hellwig
2019-04-22 17:59 ` [PATCH 04/26] iommu/dma: Cleanup dma-iommu.h Christoph Hellwig
2019-04-22 17:59 ` [PATCH 05/26] iommu/dma: Remove the flush_page callback Christoph Hellwig
2019-04-22 17:59 ` [PATCH 06/26] iommu/dma: Use for_each_sg in iommu_dma_alloc Christoph Hellwig
2019-04-22 17:59 ` [PATCH 07/26] iommu/dma: move the arm64 wrappers to common code Christoph Hellwig
2019-04-29 12:56   ` Robin Murphy
2019-06-03 19:47     ` Jon Hunter
2019-06-04  6:05       ` Christoph Hellwig
2019-06-04 11:35         ` Jon Hunter
2019-04-22 17:59 ` [PATCH 08/26] iommu/dma: Move __iommu_dma_map Christoph Hellwig
2019-04-22 17:59 ` [PATCH 09/26] iommu/dma: Move domain lookup into __iommu_dma_{map,unmap} Christoph Hellwig
2019-04-22 17:59 ` [PATCH 10/26] iommu/dma: Squash __iommu_dma_{map,unmap}_page helpers Christoph Hellwig
2019-04-22 17:59 ` [PATCH 11/26] iommu/dma: Factor out remapped pages lookup Christoph Hellwig
2019-04-29 13:05   ` Robin Murphy
2019-04-29 19:10     ` Christoph Hellwig
2019-04-22 17:59 ` [PATCH 12/26] iommu/dma: Refactor the page array remapping allocator Christoph Hellwig
2019-04-29 13:10   ` Robin Murphy
2019-04-22 17:59 ` [PATCH 13/26] iommu/dma: Remove __iommu_dma_free Christoph Hellwig
2019-04-29 13:18   ` Robin Murphy
2019-04-22 17:59 ` [PATCH 14/26] iommu/dma: Refactor iommu_dma_free Christoph Hellwig
2019-04-29 13:59   ` Robin Murphy
2019-04-29 19:03     ` Christoph Hellwig
2019-04-29 19:16       ` Christoph Hellwig
2019-04-22 17:59 ` [PATCH 15/26] iommu/dma: Refactor iommu_dma_alloc Christoph Hellwig
2019-04-22 17:59 ` [PATCH 16/26] iommu/dma: Don't remap CMA unnecessarily Christoph Hellwig
2019-04-22 17:59 ` [PATCH 17/26] iommu/dma: Merge the CMA and alloc_pages allocation paths Christoph Hellwig
2019-04-22 17:59 ` [PATCH 18/26] iommu/dma: Split iommu_dma_free Christoph Hellwig
2019-04-22 17:59 ` [PATCH 19/26] iommu/dma: Cleanup variable naming in iommu_dma_alloc Christoph Hellwig
2019-04-29 14:11   ` Robin Murphy
2019-04-22 17:59 ` [PATCH 20/26] iommu/dma: Refactor iommu_dma_alloc, part 2 Christoph Hellwig
2019-04-29 14:45   ` Robin Murphy
2019-04-22 17:59 ` [PATCH 21/26] iommu/dma: Refactor iommu_dma_get_sgtable Christoph Hellwig
2019-04-29 14:08   ` Robin Murphy
2019-04-22 17:59 ` [PATCH 22/26] iommu/dma: Refactor iommu_dma_mmap Christoph Hellwig
2019-04-29 14:04   ` Robin Murphy
2019-04-22 17:59 ` [PATCH 23/26] iommu/dma: Don't depend on CONFIG_DMA_DIRECT_REMAP Christoph Hellwig
2019-04-29 14:46   ` Robin Murphy
2019-04-22 17:59 ` [PATCH 24/26] iommu/dma: Switch copyright boilerplace to SPDX Christoph Hellwig
2019-04-22 17:59 ` [PATCH 25/26] arm64: switch copyright boilerplace to SPDX in dma-mapping.c Christoph Hellwig
2019-04-22 17:59 ` [PATCH 26/26] arm64: trim includes " Christoph Hellwig
2019-04-29 15:00   ` Robin Murphy
2019-04-29 15:03 ` Robin Murphy [this message]

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