Merge tag 'iommu-updates-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu updates from Joerg Roedel:

 - New DART IOMMU driver for Apple Silicon M1 chips

 - Optimizations for iommu_[map/unmap] performance

 - Selective TLB flush support for the AMD IOMMU driver to make it more
   efficient on emulated IOMMUs

 - Rework IOVA setup and default domain type setting to move more code
   out of IOMMU drivers and to support runtime switching between certain
   types of default domains

 - VT-d Updates from Lu Baolu:
      - Update the virtual command related registers
      - Enable Intel IOMMU scalable mode by default
      - Preset A/D bits for user space DMA usage
      - Allow devices to have more than 32 outstanding PRs
      - Various cleanups

 - ARM SMMU Updates from Will Deacon:
      SMMUv3:
       - Minor optimisation to avoid zeroing struct members on CMD submission
       - Increased use of batched commands to reduce submission latency
       - Refactoring in preparation for ECMDQ support
      SMMUv2:
       - Fix races when probing devices with identical StreamIDs
       - Optimise walk cache flushing for Qualcomm implementations
       - Allow deep sleep states for some Qualcomm SoCs with shared clocks

 - Various smaller optimizations, cleanups, and fixes

* tag 'iommu-updates-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (85 commits)
  iommu/io-pgtable: Abstract iommu_iotlb_gather access
  iommu/arm-smmu: Fix missing unlock on error in arm_smmu_device_group()
  iommu/vt-d: Add present bit check in pasid entry setup helpers
  iommu/vt-d: Use pasid_pte_is_present() helper function
  iommu/vt-d: Drop the kernel doc annotation
  iommu/vt-d: Allow devices to have more than 32 outstanding PRs
  iommu/vt-d: Preset A/D bits for user space DMA usage
  iommu/vt-d: Enable Intel IOMMU scalable mode by default
  iommu/vt-d: Refactor Kconfig a bit
  iommu/vt-d: Remove unnecessary oom message
  iommu/vt-d: Update the virtual command related registers
  iommu: Allow enabling non-strict mode dynamically
  iommu: Merge strictness and domain type configs
  iommu: Only log strictness for DMA domains
  iommu: Expose DMA domain strictness via sysfs
  iommu: Express DMA strictness via the domain type
  iommu/vt-d: Prepare for multiple DMA domain types
  iommu/arm-smmu: Prepare for multiple DMA domain types
  iommu/amd: Prepare for multiple DMA domain types
  iommu: Introduce explicit type for non-strict DMA domains
  ...

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