[PATCH v7 2/8] dt-bindings: PCI: ti,am65: Extend for use with PVU
Rob Herring (Arm)
robh at kernel.org
Fri Apr 18 01:24:34 PDT 2025
On Fri, 18 Apr 2025 15:30:20 +0800, huaqian.li at siemens.com wrote:
> From: Jan Kiszka <jan.kiszka at siemens.com>
>
> The PVU on the AM65 SoC is capable of restricting DMA from PCIe devices
> to specific regions of host memory. Add the optional property
> "memory-regions" to point to such regions of memory when PVU is used.
>
> Since the PVU deals with system physical addresses, utilizing the PVU
> with PCIe devices also requires setting up the VMAP registers to map the
> Requester ID of the PCIe device to the CBA Virtual ID, which in turn is
> mapped to the system physical address. Hence, describe the VMAP
> registers which are optional unless the PVU shall be used for PCIe.
>
> Signed-off-by: Jan Kiszka <jan.kiszka at siemens.com>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski at linaro.org>
> Signed-off-by: Li Hua Qian <huaqian.li at siemens.com>
> ---
> .../bindings/pci/ti,am65-pci-host.yaml | 34 +++++++++++++++++--
> 1 file changed, 31 insertions(+), 3 deletions(-)
>
My bot found errors running 'make dt_binding_check' on your patch:
yamllint warnings/errors:
dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/pci/ti,am65-pci-host.example.dtb: pcie at 5500000 (ti,am654-pcie-rc): 'memory-region' is a required property
from schema $id: http://devicetree.org/schemas/pci/ti,am65-pci-host.yaml#
doc reference errors (make refcheckdocs):
See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20250418073026.2418728-3-huaqian.li@siemens.com
The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.
If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:
pip3 install dtschema --upgrade
Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.
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