Messages in this thread | | | From | Robin Murphy <> | Subject | [PATCH v2 00/24] iommu: Refactor DMA domain strictness | Date | Wed, 28 Jul 2021 16:58:21 +0100 |
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Hi all,
Here's v2 where things start to look more realistic, hence the expanded CC list. The patches are now based on the current iommu/core branch to take John's iommu_set_dma_strict() cleanup into account.
The series remiains in two (or possibly 3) logical parts - for people CC'd on cookie cleanup patches, the later parts should not affect you since your drivers don't implement non-strict mode anyway; the cleanup is all pretty straightforward, but please do yell at me if I've managed to let a silly mistake slip through and broken your driver.
This time I have also build-tested x86 as well as arm64 :)
Changes in v2:
- Add iommu_is_dma_domain() helper to abstract flag check (and help avoid silly typos like the one in v1). - Tweak a few commit messages for spelling and (hopefully) clarity. - Move the iommu_create_device_direct_mappings() update to patch #14 where it should have been. - Rewrite patch #20 as a conversion of the now-existing option. - Clean up the ops->flush_iotlb_all check which is also made redundant by the new domain type - Add patch #24, which is arguably tangential, but it was something I spotted during the rebase, so...
Once again, the whole lot is available on a branch here:
https://gitlab.arm.com/linux-arm/linux-rm/-/tree/iommu/fq
Thanks, Robin.
CC: Marek Szyprowski <m.szyprowski@samsung.com> CC: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> CC: Geert Uytterhoeven <geert+renesas@glider.be> CC: Yong Wu <yong.wu@mediatek.com> CC: Heiko Stuebner <heiko@sntech.de> CC: Chunyan Zhang <chunyan.zhang@unisoc.com> CC: Chunyan Zhang <chunyan.zhang@unisoc.com> CC: Maxime Ripard <mripard@kernel.org> CC: Jean-Philippe Brucker <jean-philippe@linaro.org>
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: 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: Merge strictness and domain type configs iommu/dma: Factor out flush queue init iommu: Allow enabling non-strict mode dynamically iommu/arm-smmu: Allow non-strict in pgtable_quirks interface iommu: Only log strictness for DMA domains
.../ABI/testing/sysfs-kernel-iommu_groups | 2 + drivers/iommu/Kconfig | 80 +++++++++---------- drivers/iommu/amd/iommu.c | 21 +---- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 25 ++++-- drivers/iommu/arm/arm-smmu/arm-smmu.c | 29 ++++--- drivers/iommu/arm/arm-smmu/qcom_iommu.c | 8 -- drivers/iommu/dma-iommu.c | 44 +++++----- drivers/iommu/exynos-iommu.c | 18 +---- drivers/iommu/intel/iommu.c | 23 ++---- drivers/iommu/iommu.c | 53 +++++++----- drivers/iommu/ipmmu-vmsa.c | 27 +------ drivers/iommu/mtk_iommu.c | 6 -- drivers/iommu/rockchip-iommu.c | 11 +-- drivers/iommu/sprd-iommu.c | 6 -- drivers/iommu/sun50i-iommu.c | 12 +-- drivers/iommu/virtio-iommu.c | 8 -- include/linux/dma-iommu.h | 9 ++- include/linux/iommu.h | 15 +++- 18 files changed, 171 insertions(+), 226 deletions(-)
-- 2.25.1
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