Merge tag 'iommu-updates-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu updates from Joerg Roedel:
 "A big part of this is a change in how devices get connected to IOMMUs
  in the core code. It contains the change from the old add_device() /
  remove_device() to the new probe_device() / release_device()
  call-backs.

  As a result functionality that was previously in the IOMMU drivers has
  been moved to the IOMMU core code, including IOMMU group allocation
  for each device. The reason for this change was to get more robust
  allocation of default domains for the iommu groups.

  A couple of fixes were necessary after this was merged into the IOMMU
  tree, but there are no known bugs left. The last fix is applied on-top
  of the merge commit for the topic branches.

  Other than that change, we have:

   - Removal of the driver private domain handling in the Intel VT-d
     driver. This was fragile code and I am glad it is gone now.

   - More Intel VT-d updates from Lu Baolu:
      - Nested Shared Virtual Addressing (SVA) support to the Intel VT-d
        driver
      - Replacement of the Intel SVM interfaces to the common IOMMU SVA
        API
      - SVA Page Request draining support

   - ARM-SMMU Updates from Will:
      - Avoid mapping reserved MMIO space on SMMUv3, so that it can be
        claimed by the PMU driver
      - Use xarray to manage ASIDs on SMMUv3
      - Reword confusing shutdown message
      - DT compatible string updates
      - Allow implementations to override the default domain type

   - A new IOMMU driver for the Allwinner Sun50i platform

   - Support for ATS gets disabled for untrusted devices (like
     Thunderbolt devices). This includes a PCI patch, acked by Bjorn.

   - Some cleanups to the AMD IOMMU driver to make more use of IOMMU
     core features.

   - Unification of some printk formats in the Intel and AMD IOMMU
     drivers and in the IOVA code.

   - Updates for DT bindings

   - A number of smaller fixes and cleanups.

* tag 'iommu-updates-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (109 commits)
  iommu: Check for deferred attach in iommu_group_do_dma_attach()
  iommu/amd: Remove redundant devid checks
  iommu/amd: Store dev_data as device iommu private data
  iommu/amd: Merge private header files
  iommu/amd: Remove PD_DMA_OPS_MASK
  iommu/amd: Consolidate domain allocation/freeing
  iommu/amd: Free page-table in protection_domain_free()
  iommu/amd: Allocate page-table in protection_domain_init()
  iommu/amd: Let free_pagetable() not rely on domain->pt_root
  iommu/amd: Unexport get_dev_data()
  iommu/vt-d: Fix compile warning
  iommu/vt-d: Remove real DMA lookup in find_domain
  iommu/vt-d: Allocate domain info for real DMA sub-devices
  iommu/vt-d: Only clear real DMA device's context entries
  iommu: Remove iommu_sva_ops::mm_exit()
  uacce: Remove mm_exit() op
  iommu/sun50i: Constify sun50i_iommu_ops
  iommu/hyper-v: Constify hyperv_ir_domain_ops
  iommu/vt-d: Use pci_ats_supported()
  iommu/arm-smmu-v3: Use pci_ats_supported()
  ...

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