Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml

File Facts

System: Linux kernel
Corpus path: Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml
Extension: .yaml
Size: 3982 bytes
Lines: 138
Domain: Support Tooling And Documentation
Bucket: Documentation
Inferred role: Support Tooling And Documentation: configuration, schema, or hardware description
Status: atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
Touches IRQ or DMA behavior; this matters for the representative real-device path.

Dependency Surface

No C-style include directives detected by the generator.

Detected Declarations

No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/pci/xilinx-versal-cpm.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: CPM Host Controller device tree for Xilinx Versal SoCs

maintainers:
  - Bharat Kumar Gogada <bharat.kumar.gogada@amd.com>

allOf:
  - $ref: /schemas/pci/pci-host-bridge.yaml#

properties:
  compatible:
    enum:
      - xlnx,versal-cpm-host-1.00
      - xlnx,versal-cpm5-host
      - xlnx,versal-cpm5-host1
      - xlnx,versal-cpm5nc-host

  reg:
    items:
      - description: CPM system level control and status registers.
      - description: Configuration space region and bridge registers.
      - description: CPM5 control and status registers.
    minItems: 2

  reg-names:
    items:
      - const: cpm_slcr
      - const: cfg
      - const: cpm_csr
    minItems: 2

  interrupts:
    maxItems: 1

  msi-map:
    description:
      Maps a Requester ID to an MSI controller and associated MSI sideband data.

  ranges:
    maxItems: 2

  "#interrupt-cells":
    const: 1

  interrupt-controller:
    description: Interrupt controller node for handling legacy PCI interrupts.
    type: object
    additionalProperties: false

    properties:
      "#address-cells":
        const: 0

      "#interrupt-cells":
        const: 1

      interrupt-controller: true

required:
  - reg
  - reg-names
  - "#interrupt-cells"
  - interrupts
  - interrupt-map
  - interrupt-map-mask

Annotation

Atlas domain: Support Tooling And Documentation / Documentation.
Implementation status: atlas-only.
IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.