Documentation/devicetree/bindings/iommu/qcom,iommu.yaml
Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/iommu/qcom,iommu.yaml
File Facts
- System
- Linux kernel
- Corpus path
Documentation/devicetree/bindings/iommu/qcom,iommu.yaml- Extension
.yaml- Size
- 3055 bytes
- Lines
- 133
- 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.
Dependency Surface
dt-bindings/clock/qcom,gcc-msm8916.hdt-bindings/interrupt-controller/arm-gic.h
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/iommu/qcom,iommu.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Technologies legacy IOMMU implementations
maintainers:
- Konrad Dybcio <konradybcio@kernel.org>
description: |
Qualcomm "B" family devices which are not compatible with arm-smmu have
a similar looking IOMMU, but without access to the global register space
and optionally requiring additional configuration to route context IRQs
to non-secure vs secure interrupt line.
properties:
compatible:
oneOf:
- items:
- enum:
- qcom,msm8916-iommu
- qcom,msm8917-iommu
- qcom,msm8937-iommu
- qcom,msm8953-iommu
- const: qcom,msm-iommu-v1
- items:
- enum:
- qcom,msm8953-iommu
- qcom,msm8976-iommu
- const: qcom,msm-iommu-v2
clocks:
minItems: 2
items:
- description: Clock required for IOMMU register group access
- description: Clock required for underlying bus access
- description: Clock required for Translation Buffer Unit access
clock-names:
minItems: 2
items:
- const: iface
- const: bus
- const: tbu
power-domains:
maxItems: 1
reg:
maxItems: 1
ranges: true
qcom,iommu-secure-id:
$ref: /schemas/types.yaml#/definitions/uint32
description:
The SCM secure ID of the IOMMU instance.
'#address-cells':
const: 1
'#size-cells':
const: 1
'#iommu-cells':
const: 1
patternProperties:
Annotation
- Immediate include surface: `dt-bindings/clock/qcom,gcc-msm8916.h`, `dt-bindings/interrupt-controller/arm-gic.h`.
- Atlas domain: Support Tooling And Documentation / Documentation.
- Implementation status: atlas-only.
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.