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[v2,00/11] PCI/ATS: Device-tree support and other improvements

Message ID 20200311124506.208376-1-jean-philippe@linaro.org
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Series PCI/ATS: Device-tree support and other improvements | expand

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Jean-Philippe Brucker March 11, 2020, 12:44 p.m. UTC 
Enable ATS on device-tree based systems, and factor the common ATS
enablement checks into pci_enable_ats().

Since v1 [1] I added acks and review tags, simplified patch 3 and tried
to clarify the comment in patch 2.

I'd like acks or comments on the following patches:
* PCI on patches 2, 3 and 5
* Arm SMMUv3 on patch 7
* Intel VT-d on patch 8
* arm64 DT on patch 10 

Thanks,
Jean

[1] https://lore.kernel.org/linux-iommu/20200213165049.508908-1-jean-philippe@linaro.org/

Jean-Philippe Brucker (11):
  dt-bindings: PCI: generic: Add ats-supported property
  PCI: Add ats_supported host bridge flag
  PCI: OF: Check whether the host bridge supports ATS
  ACPI/IORT: Check ATS capability in root complex node
  PCI/ATS: Gather checks into pci_ats_supported()
  iommu/amd: Use pci_ats_supported()
  iommu/arm-smmu-v3: Use pci_ats_supported()
  iommu/vt-d: Use pci_ats_supported()
  ACPI/IORT: Drop ATS fwspec flag
  arm64: dts: fast models: Enable PCIe ATS for Base RevC FVP
  Documentation: Generalize the "pci=noats" boot parameter

 .../admin-guide/kernel-parameters.txt         |  4 +-
 .../bindings/pci/host-generic-pci.yaml        |  6 +++
 arch/arm64/boot/dts/arm/fvp-base-revc.dts     |  1 +
 drivers/acpi/arm64/iort.c                     | 38 +++++++++++++------
 drivers/acpi/pci_root.c                       |  3 ++
 drivers/iommu/amd_iommu.c                     | 12 ++----
 drivers/iommu/arm-smmu-v3.c                   | 18 ++-------
 drivers/iommu/intel-iommu.c                   |  9 ++---
 drivers/pci/ats.c                             | 30 ++++++++++++++-
 drivers/pci/controller/pci-host-common.c      | 11 ++++++
 drivers/pci/probe.c                           |  8 ++++
 include/linux/acpi_iort.h                     |  8 ++++
 include/linux/iommu.h                         |  4 --
 include/linux/pci-ats.h                       |  3 ++
 include/linux/pci.h                           |  1 +
 15 files changed, 109 insertions(+), 47 deletions(-)