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

[Jean-Philippe Brucker]

Hi Joerg,

On Fri, Jun 07, 2024 at 11:54:13AM +0100, Jean-Philippe Brucker wrote:
> 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.

This series enables ATS for devicetree boot, and is needed on an Nvidia
system: https://lore.kernel.org/linux-arm-kernel/ZeJP6CwrZ2FSbTYm@Asurada-Nvidia/

Would you mind picking it up for v6.11?

Thanks,
Jean

> 
> [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(+)
> 
> -- 
> 2.45.2
>