Merge tag 'iommu-fixes-v4.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU fixes from Joerg Roedel:
 "These fixes are all for the AMD IOMMU driver:

   - A regression with HSA caused by the conversion of the driver to
     default domains.  The fixes make sure that an HSA device can still
     be attached to an IOMMUv2 domain and that these domains also allow
     non-IOMMUv2 capable devices.

   - Fix iommu=pt mode which did not work because the dma_ops where set
     to nommu_ops, which breaks devices that can only do 32bit DMA.

   - Fix an issue with non-PCI devices not working, because there are no
     dma_ops for them.  This issue was discovered recently as new AMD
     x86 platforms have non-PCI devices too"

* tag 'iommu-fixes-v4.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/amd: Allow non-ATS devices in IOMMUv2 domains
  iommu/amd: Set global dma_ops if swiotlb is disabled
  iommu/amd: Use swiotlb in passthrough mode
  iommu/amd: Allow non-IOMMUv2 devices in IOMMUv2 domains
  iommu/amd: Use iommu core for passthrough mode
  iommu/amd: Use iommu_attach_group()

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