[PATCH v2 0/3] Enable PCIe ATS for devicetree boot

[Jean-Philippe Brucker]

Before enabling Address Translation Support (ATS) in endpoints, the OS
needs to confirm that the Root Complex supports it. Obtain this
information from the firmware description since there is no architected
method. ACPI provides a bit via IORT tables, so add the devicetree
equivalent.

Since v1 [1] I added the review and ack tags, thanks all. This should be
ready to go via the IOMMU tree.

[1] https://lore.kernel.org/all/20240429113938.192706-2-jean-philippe@linaro.org/

Jean-Philippe Brucker (3):
  dt-bindings: PCI: generic: Add ats-supported property
  iommu/of: Support ats-supported device-tree property
  arm64: dts: fvp: Enable PCIe ATS for Base RevC FVP

 .../devicetree/bindings/pci/host-generic-pci.yaml        | 6 ++++++
 drivers/iommu/of_iommu.c                                 | 9 +++++++++
 arch/arm64/boot/dts/arm/fvp-base-revc.dts                | 1 +
 3 files changed, 16 insertions(+)

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2.45.2