• Linus Torvalds's avatar
    Merge tag 'iommu-updates-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu · d1f2b171
    Linus Torvalds authored
    Pull IOMMU updates from Joerg Roedel:
     - Debugfs support for the Intel VT-d driver.
       When enabled, it now also exposes some of its internal data
       structures to user-space for debugging purposes.
     - ARM-SMMU driver now uses the generic deferred flushing and fast-path
       iova allocation code.
       This is expected to be a major performance improvement, as this
       allocation path scales a lot better.
     - Support for r8a7744 in the Renesas iommu driver
     - Couple of minor fixes and improvements all over the place
    * tag 'iommu-updates-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (39 commits)
      iommu/arm-smmu-v3: Remove unnecessary wrapper function
      iommu/arm-smmu-v3: Add SPDX header
      iommu/amd: Add default branch in amd_iommu_capable()
      dt-bindings: iommu: ipmmu-vmsa: Add r8a7744 support
      iommu/amd: Move iommu_init_pci() to .init section
      iommu/arm-smmu: Support non-strict mode
      iommu/io-pgtable-arm-v7s: Add support for non-strict mode
      iommu/arm-smmu-v3: Add support for non-strict mode
      iommu/io-pgtable-arm: Add support for non-strict mode
      iommu: Add "iommu.strict" command line option
      iommu/dma: Add support for non-strict mode
      iommu/arm-smmu: Ensure that page-table updates are visible before TLBI
      iommu/arm-smmu-v3: Implement flush_iotlb_all hook
      iommu/arm-smmu-v3: Avoid back-to-back CMD_SYNC operations
      iommu/arm-smmu-v3: Fix unexpected CMD_SYNC timeout
      iommu/io-pgtable-arm: Fix race handling in split_blk_unmap()
      iommu/arm-smmu-v3: Fix a couple of minor comment typos
      iommu: Fix a typo
      iommu: Remove .domain_{get,set}_windows
      iommu: Tidy up window attributes
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