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Merge branch 'pci/host-vmd'

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- Save VMD's pci_dev in x86 struct pci_sysdata (Jon Derrick)

  - Add pci_real_dma_dev() for DMA aliases not on the same bus as requester
    (Jon Derrick)

  - Add IOMMU mappings for pci_real_dma_dev() (Jon Derrick)

  - Remove IOMMU sanity checks for VMD devices (Jon Derrick)

  - Remove VMD dma_map_ops overrides (Jon Derrick)

  - Remove unused X86_DEV_DMA_OPS (Christoph Hellwig)

  - Add VMD device IDs that need bus restriction mode (Sushma Kalakota)

* pci/host-vmd:
  PCI: vmd: Add two VMD Device IDs
  x86/PCI: Remove X86_DEV_DMA_OPS
  PCI: vmd: Remove dma_map_ops overrides
  iommu/vt-d: Remove VMD child device sanity check
  iommu/vt-d: Use pci_real_dma_dev() for mapping
  PCI: Introduce pci_real_dma_dev()
  x86/PCI: Expose VMD's pci_dev in struct pci_sysdata
  x86/PCI: Add to_pci_sysdata() helper
This commit is contained in:
Bjorn Helgaas 2020-01-29 17:00:02 -06:00
commit db83c269d2
10 changed files with 58 additions and 228 deletions
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1
include/linux/pci.h
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@ -1202,6 +1202,7 @@ int __must_check pci_resize_resource(struct pci_dev *dev, int i, int size);
int pci_select_bars(struct pci_dev *dev, unsigned long flags);
bool pci_device_is_present(struct pci_dev *pdev);
void pci_ignore_hotplug(struct pci_dev *dev);
struct pci_dev *pci_real_dma_dev(struct pci_dev *dev);
int __printf(6, 7) pci_request_irq(struct pci_dev *dev, unsigned int nr,
irq_handler_t handler, irq_handler_t thread_fn, void *dev_id,