[RFC 0/7] Convert the Intel iommu driver to the dma-ops api

From: Tom Murphy via iommu <iommu@lists.linux-foundation.org>
To: iommu@lists.linux-foundation.org
Cc: Heiko Stuebner <heiko@sntech.de>,
	kvm@vger.kernel.org, Will Deacon <will.deacon@arm.com>,
	David Brown <david.brown@linaro.org>,
	Thierry Reding <thierry.reding@gmail.com>,
	linux-s390@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Jonathan Hunter <jonathanh@nvidia.com>,
	linux-rockchip@lists.infradead.org, Kukjin Kim <kgene@kernel.org>,
	Gerald Schaefer <gerald.schaefer@de.ibm.com>,
	Andy Gross <andy.gross@linaro.org>,
	linux-tegra@vger.kernel.org, Marc Zyngier <marc.zyngier@arm.com>,
	linux-arm-msm@vger.kernel.org,
	Alex Williamson <alex.williamson@redhat.com>,
	linux-mediatek@lists.infradead.org,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	linux-arm-kernel@lists.infradead.org,
	Tom Murphy <tmurphy@arista.com>,
	Robin Murphy <robin.murphy@arm.com>,
	linux-kernel@vger.kernel.org, murphyt7@tcd.ie,
	David Woodhouse <dwmw2@infradead.org>
Subject: [RFC 0/7] Convert the Intel iommu driver to the dma-ops api
Date: Sat,  4 May 2019 14:23:16 +0100	[thread overview]
Message-ID: <20190504132327.27041-1-tmurphy@arista.com> (raw)

Convert the intel iommu driver to the dma-ops api so that we can remove a bunch of repeated code.

This patchset depends on the "iommu/vt-d: Delegate DMA domain to generic iommu" and
"iommu/amd: Convert the AMD iommu driver to the dma-iommu api" patch sets which haven't
yet merged so this is just a RFC to get some feedback before I do more testing.

Tom Murphy (7):
  iommu/vt-d: Set the dma_ops per device so we can remove the
    iommu_no_mapping code
  iommu/vt-d: Remove iova handling code from non-dma ops path
  iommu: improve iommu iotlb flushing
  iommu/dma-iommu: Handle freelists in the dma-iommu api path
  iommu/dma-iommu: add wrapper for iommu_dma_free_cpu_cached_iovas
  iommu/vt-d: convert the intel iommu driver to the dma-iommu ops api
  iommu/vt-d: Always set DMA_PTE_READ if the iommu doens't support zero
    length reads

 drivers/iommu/Kconfig           |   1 +
 drivers/iommu/amd_iommu.c       |  14 +-
 drivers/iommu/arm-smmu-v3.c     |   3 +-
 drivers/iommu/arm-smmu.c        |   2 +-
 drivers/iommu/dma-iommu.c       |  48 ++-
 drivers/iommu/exynos-iommu.c    |   3 +-
 drivers/iommu/intel-iommu.c     | 605 +++++---------------------------
 drivers/iommu/iommu.c           |  21 +-
 drivers/iommu/ipmmu-vmsa.c      |   2 +-
 drivers/iommu/msm_iommu.c       |   2 +-
 drivers/iommu/mtk_iommu.c       |   3 +-
 drivers/iommu/mtk_iommu_v1.c    |   3 +-
 drivers/iommu/omap-iommu.c      |   2 +-
 drivers/iommu/qcom_iommu.c      |   2 +-
 drivers/iommu/rockchip-iommu.c  |   2 +-
 drivers/iommu/s390-iommu.c      |   3 +-
 drivers/iommu/tegra-gart.c      |   2 +-
 drivers/iommu/tegra-smmu.c      |   2 +-
 drivers/vfio/vfio_iommu_type1.c |   3 +-
 include/linux/dma-iommu.h       |   3 +
 include/linux/intel-iommu.h     |   1 -
 include/linux/iommu.h           |  24 +-
 22 files changed, 175 insertions(+), 576 deletions(-)

-- 
2.17.1

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