From: Christoph Hellwig <hch@lst.de>
To: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>,
iommu@lists.linux-foundation.org,
Robin Murphy <robin.murphy@arm.com>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: implement generic dma_map_ops for IOMMUs v4
Date: Thu, 2 May 2019 15:22:08 +0200 [thread overview]
Message-ID: <20190502132208.GA3069@lst.de> (raw)
In-Reply-To: <20190430105214.24628-1-hch@lst.de>
Hi Catalin and Will,
can you quickly look over the arm64 parts? I'd really like to still
get this series in for this merge window as it would conflict with
a lot of dma-mapping work for next merge window, and we also have
the amd and possibly intel iommu conversions to use it waiting.
On Tue, Apr 30, 2019 at 06:51:49AM -0400, 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.
>
> 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 v3:
> - fold the separate patch to refactor mmap bounds checking
> - don't warn on not finding a vm_area
> - improve a commit log
> - refactor __dma_iommu_free a little differently
> - remove a minor MSI map cleanup to avoid a conflict with the
> "Split iommu_dma_map_msi_msg" series
>
> 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
> _______________________________________________
> iommu mailing list
> iommu@lists.linux-foundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/iommu
---end quoted text---
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next prev parent reply other threads:[~2019-05-02 13:22 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-30 10:51 implement generic dma_map_ops for IOMMUs v4 Christoph Hellwig
2019-04-30 10:51 ` [PATCH 01/25] arm64/iommu: handle non-remapped addresses in ->mmap and ->get_sgtable Christoph Hellwig
2019-05-03 11:33 ` Catalin Marinas
2019-05-07 6:37 ` Christoph Hellwig
2019-05-07 9:05 ` Will Deacon
2019-04-30 10:51 ` [PATCH 02/25] dma-mapping: add a Kconfig symbol to indicated arch_dma_prep_coherent presence Christoph Hellwig
2019-05-03 11:36 ` Catalin Marinas
2019-04-30 10:51 ` [PATCH 03/25] iommu/dma: Cleanup dma-iommu.h Christoph Hellwig
2019-04-30 10:51 ` [PATCH 04/25] iommu/dma: Remove the flush_page callback Christoph Hellwig
2019-05-03 11:43 ` Catalin Marinas
2019-05-03 11:44 ` Catalin Marinas
2019-04-30 10:51 ` [PATCH 05/25] iommu/dma: Use for_each_sg in iommu_dma_alloc Christoph Hellwig
2019-04-30 10:51 ` [PATCH 06/25] iommu/dma: move the arm64 wrappers to common code Christoph Hellwig
2019-05-03 11:45 ` Catalin Marinas
2019-04-30 10:51 ` [PATCH 07/25] iommu/dma: Move __iommu_dma_map Christoph Hellwig
2019-04-30 10:51 ` [PATCH 08/25] iommu/dma: Move domain lookup into __iommu_dma_{map, unmap} Christoph Hellwig
2019-04-30 10:51 ` [PATCH 09/25] iommu/dma: Squash __iommu_dma_{map,unmap}_page helpers Christoph Hellwig
2019-04-30 10:51 ` [PATCH 10/25] iommu/dma: Factor out remapped pages lookup Christoph Hellwig
2019-04-30 10:52 ` [PATCH 11/25] iommu/dma: Refactor the page array remapping allocator Christoph Hellwig
2019-04-30 10:52 ` [PATCH 12/25] iommu/dma: Remove __iommu_dma_free Christoph Hellwig
2019-04-30 10:52 ` [PATCH 13/25] iommu/dma: Refactor iommu_dma_free Christoph Hellwig
2019-04-30 10:52 ` [PATCH 14/25] iommu/dma: Refactor iommu_dma_alloc Christoph Hellwig
2019-04-30 10:52 ` [PATCH 15/25] iommu/dma: Don't remap CMA unnecessarily Christoph Hellwig
2019-04-30 10:52 ` [PATCH 16/25] iommu/dma: Merge the CMA and alloc_pages allocation paths Christoph Hellwig
2019-04-30 10:52 ` [PATCH 17/25] iommu/dma: Split iommu_dma_free Christoph Hellwig
2019-04-30 10:52 ` [PATCH 18/25] iommu/dma: Cleanup variable naming in iommu_dma_alloc Christoph Hellwig
2019-04-30 10:52 ` [PATCH 19/25] iommu/dma: Refactor iommu_dma_alloc, part 2 Christoph Hellwig
2019-04-30 10:52 ` [PATCH 20/25] iommu/dma: Refactor iommu_dma_get_sgtable Christoph Hellwig
2019-04-30 10:52 ` [PATCH 21/25] iommu/dma: Refactor iommu_dma_mmap Christoph Hellwig
2019-04-30 10:52 ` [PATCH 22/25] iommu/dma: Don't depend on CONFIG_DMA_DIRECT_REMAP Christoph Hellwig
2019-04-30 10:52 ` [PATCH 23/25] iommu/dma: Switch copyright boilerplace to SPDX Christoph Hellwig
2019-04-30 10:52 ` [PATCH 24/25] arm64: switch copyright boilerplace to SPDX in dma-mapping.c Christoph Hellwig
2019-05-03 11:45 ` Catalin Marinas
2019-04-30 10:52 ` [PATCH 25/25] arm64: trim includes " Christoph Hellwig
2019-05-03 11:46 ` Catalin Marinas
2019-05-02 13:22 ` Christoph Hellwig [this message]
2019-05-03 11:47 ` implement generic dma_map_ops for IOMMUs v4 Catalin Marinas
2019-05-03 11:59 ` Christoph Hellwig
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