4638a0474d
Qualcomm QCS8300 SoC includes apps smmu that implements arm,mmu-500, which is used to translate device-visible virtual addresses to physical addresses. Add compatible for it. Signed-off-by: Zhenhua Huang <quic_zhenhuah@quicinc.com> Signed-off-by: Jingyi Wang <quic_jingyw@quicinc.com> Link: https://lore.kernel.org/r/20240911-qcs8300_smmu_binding-v2-1-f53dd9c047ba@quicinc.com Signed-off-by: Will Deacon <will@kernel.org>
685 lines
21 KiB
YAML
685 lines
21 KiB
YAML
# SPDX-License-Identifier: GPL-2.0-only
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/iommu/arm,smmu.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: ARM System MMU Architecture Implementation
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maintainers:
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- Will Deacon <will@kernel.org>
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- Robin Murphy <Robin.Murphy@arm.com>
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description: |+
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ARM SoCs may contain an implementation of the ARM System Memory
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Management Unit Architecture, which can be used to provide 1 or 2 stages
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of address translation to bus masters external to the CPU.
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The SMMU may also raise interrupts in response to various fault
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conditions.
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properties:
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$nodename:
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pattern: "^iommu@[0-9a-f]*"
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compatible:
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oneOf:
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- description: Qcom SoCs implementing "arm,smmu-v2"
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items:
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- enum:
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- qcom,msm8996-smmu-v2
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- qcom,msm8998-smmu-v2
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- qcom,sdm630-smmu-v2
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- qcom,sm6375-smmu-v2
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- const: qcom,smmu-v2
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- description: Qcom SoCs implementing "qcom,smmu-500" and "arm,mmu-500"
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items:
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- enum:
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- qcom,qcm2290-smmu-500
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- qcom,qcs8300-smmu-500
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- qcom,qdu1000-smmu-500
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- qcom,sa8255p-smmu-500
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- qcom,sa8775p-smmu-500
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- qcom,sc7180-smmu-500
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- qcom,sc7280-smmu-500
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- qcom,sc8180x-smmu-500
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- qcom,sc8280xp-smmu-500
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- qcom,sdm670-smmu-500
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- qcom,sdm845-smmu-500
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- qcom,sdx55-smmu-500
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- qcom,sdx65-smmu-500
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- qcom,sdx75-smmu-500
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- qcom,sm6115-smmu-500
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- qcom,sm6125-smmu-500
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- qcom,sm6350-smmu-500
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- qcom,sm6375-smmu-500
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- qcom,sm8150-smmu-500
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- qcom,sm8250-smmu-500
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- qcom,sm8350-smmu-500
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- qcom,sm8450-smmu-500
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- qcom,sm8550-smmu-500
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- qcom,sm8650-smmu-500
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- qcom,x1e80100-smmu-500
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- const: qcom,smmu-500
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- const: arm,mmu-500
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- description: Qcom SoCs implementing "arm,mmu-500" (legacy binding)
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deprecated: true
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items:
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# Do not add additional SoC to this list. Instead use two previous lists.
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- enum:
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- qcom,qcm2290-smmu-500
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- qcom,sc7180-smmu-500
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- qcom,sc7280-smmu-500
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- qcom,sc8180x-smmu-500
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- qcom,sc8280xp-smmu-500
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- qcom,sdm845-smmu-500
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- qcom,sm6115-smmu-500
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- qcom,sm6350-smmu-500
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- qcom,sm6375-smmu-500
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- qcom,sm8150-smmu-500
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- qcom,sm8250-smmu-500
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- qcom,sm8350-smmu-500
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- qcom,sm8450-smmu-500
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- const: arm,mmu-500
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- description: Qcom Adreno GPUs implementing "qcom,smmu-500" and "arm,mmu-500"
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items:
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- enum:
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- qcom,qcm2290-smmu-500
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- qcom,sa8255p-smmu-500
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- qcom,sa8775p-smmu-500
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- qcom,sc7280-smmu-500
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- qcom,sc8180x-smmu-500
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- qcom,sc8280xp-smmu-500
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- qcom,sm6115-smmu-500
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- qcom,sm6125-smmu-500
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- qcom,sm8150-smmu-500
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- qcom,sm8250-smmu-500
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- qcom,sm8350-smmu-500
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- qcom,sm8450-smmu-500
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- qcom,sm8550-smmu-500
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- qcom,sm8650-smmu-500
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- qcom,x1e80100-smmu-500
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- const: qcom,adreno-smmu
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- const: qcom,smmu-500
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- const: arm,mmu-500
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- description: Qcom Adreno GPUs implementing "arm,mmu-500" (legacy binding)
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deprecated: true
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items:
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# Do not add additional SoC to this list. Instead use previous list.
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- enum:
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- qcom,sc7280-smmu-500
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- qcom,sm8150-smmu-500
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- qcom,sm8250-smmu-500
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- const: qcom,adreno-smmu
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- const: arm,mmu-500
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- description: Qcom Adreno GPUs implementing "arm,smmu-v2"
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items:
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- enum:
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- qcom,msm8996-smmu-v2
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- qcom,sc7180-smmu-v2
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- qcom,sdm630-smmu-v2
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- qcom,sdm845-smmu-v2
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- qcom,sm6350-smmu-v2
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- qcom,sm7150-smmu-v2
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- const: qcom,adreno-smmu
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- const: qcom,smmu-v2
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- description: Qcom Adreno GPUs on Google Cheza platform
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items:
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- const: qcom,sdm845-smmu-v2
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- const: qcom,smmu-v2
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- description: Marvell SoCs implementing "arm,mmu-500"
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items:
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- const: marvell,ap806-smmu-500
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- const: arm,mmu-500
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- description: NVIDIA SoCs that require memory controller interaction
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and may program multiple ARM MMU-500s identically with the memory
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controller interleaving translations between multiple instances
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for improved performance.
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items:
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- enum:
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- nvidia,tegra186-smmu
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- nvidia,tegra194-smmu
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- nvidia,tegra234-smmu
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- const: nvidia,smmu-500
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- items:
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- const: arm,mmu-500
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- const: arm,smmu-v2
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- items:
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- enum:
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- arm,mmu-400
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- arm,mmu-401
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- const: arm,smmu-v1
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- enum:
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- arm,smmu-v1
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- arm,smmu-v2
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- arm,mmu-400
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- arm,mmu-401
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- arm,mmu-500
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- cavium,smmu-v2
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reg:
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minItems: 1
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maxItems: 2
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'#global-interrupts':
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description: The number of global interrupts exposed by the device.
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 260 # 2 secure, 2 non-secure, and up to 256 perf counters
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'#iommu-cells':
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enum: [ 1, 2 ]
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description: |
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See Documentation/devicetree/bindings/iommu/iommu.txt for details. With a
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value of 1, each IOMMU specifier represents a distinct stream ID emitted
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by that device into the relevant SMMU.
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SMMUs with stream matching support and complex masters may use a value of
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2, where the second cell of the IOMMU specifier represents an SMR mask to
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combine with the ID in the first cell. Care must be taken to ensure the
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set of matched IDs does not result in conflicts.
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interrupts:
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minItems: 1
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maxItems: 388 # 260 plus 128 contexts
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description: |
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Interrupt list, with the first #global-interrupts entries corresponding to
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the global interrupts and any following entries corresponding to context
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interrupts, specified in order of their indexing by the SMMU.
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For SMMUv2 implementations, there must be exactly one interrupt per
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context bank. In the case of a single, combined interrupt, it must be
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listed multiple times.
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dma-coherent:
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description: |
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Present if page table walks made by the SMMU are cache coherent with the
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CPU.
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NOTE: this only applies to the SMMU itself, not masters connected
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upstream of the SMMU.
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calxeda,smmu-secure-config-access:
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type: boolean
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description:
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Enable proper handling of buggy implementations that always use secure
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access to SMMU configuration registers. In this case non-secure aliases of
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secure registers have to be used during SMMU configuration.
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stream-match-mask:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |
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For SMMUs supporting stream matching and using #iommu-cells = <1>,
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specifies a mask of bits to ignore when matching stream IDs (e.g. this may
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be programmed into the SMRn.MASK field of every stream match register
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used). For cases where it is desirable to ignore some portion of every
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Stream ID (e.g. for certain MMU-500 configurations given globally unique
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input IDs). This property is not valid for SMMUs using stream indexing, or
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using stream matching with #iommu-cells = <2>, and may be ignored if
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present in such cases.
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clock-names:
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minItems: 1
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maxItems: 7
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clocks:
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minItems: 1
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maxItems: 7
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power-domains:
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minItems: 1
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maxItems: 3
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nvidia,memory-controller:
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description: |
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A phandle to the memory controller on NVIDIA Tegra186 and later SoCs.
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The memory controller needs to be programmed with a mapping of memory
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client IDs to ARM SMMU stream IDs.
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If this property is absent, the mapping programmed by early firmware
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will be used and it is not guaranteed that IOMMU translations will be
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enabled for any given device.
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$ref: /schemas/types.yaml#/definitions/phandle
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required:
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- compatible
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- reg
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- '#global-interrupts'
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- '#iommu-cells'
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- interrupts
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additionalProperties: false
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allOf:
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- if:
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properties:
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compatible:
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contains:
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enum:
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- nvidia,tegra186-smmu
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- nvidia,tegra194-smmu
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- nvidia,tegra234-smmu
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then:
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properties:
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reg:
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minItems: 1
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maxItems: 2
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# The reference to the memory controller is required to ensure that the
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# memory client to stream ID mapping can be done synchronously with the
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# IOMMU attachment.
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required:
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- nvidia,memory-controller
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else:
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properties:
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reg:
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maxItems: 1
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- if:
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properties:
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compatible:
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contains:
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enum:
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- qcom,msm8998-smmu-v2
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- qcom,sdm630-smmu-v2
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then:
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anyOf:
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- properties:
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clock-names:
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items:
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- const: bus
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clocks:
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items:
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- description: bus clock required for downstream bus access and for
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the smmu ptw
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- properties:
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clock-names:
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items:
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- const: iface
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- const: mem
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- const: mem_iface
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clocks:
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items:
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- description: interface clock required to access smmu's registers
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through the TCU's programming interface.
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- description: bus clock required for memory access
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- description: bus clock required for GPU memory access
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- properties:
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clock-names:
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items:
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- const: iface-mm
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- const: iface-smmu
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- const: bus-smmu
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clocks:
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items:
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- description: interface clock required to access mnoc's registers
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through the TCU's programming interface.
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- description: interface clock required to access smmu's registers
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through the TCU's programming interface.
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- description: bus clock required for the smmu ptw
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- if:
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properties:
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compatible:
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contains:
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enum:
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- qcom,sm6375-smmu-v2
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then:
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anyOf:
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- properties:
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clock-names:
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items:
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- const: bus
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clocks:
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items:
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- description: bus clock required for downstream bus access and for
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the smmu ptw
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- properties:
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clock-names:
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items:
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- const: iface
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- const: mem
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- const: mem_iface
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clocks:
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items:
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- description: interface clock required to access smmu's registers
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through the TCU's programming interface.
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- description: bus clock required for memory access
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- description: bus clock required for GPU memory access
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- properties:
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clock-names:
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items:
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- const: iface-mm
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- const: iface-smmu
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- const: bus-mm
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- const: bus-smmu
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clocks:
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items:
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- description: interface clock required to access mnoc's registers
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through the TCU's programming interface.
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- description: interface clock required to access smmu's registers
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through the TCU's programming interface.
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- description: bus clock required for downstream bus access
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- description: bus clock required for the smmu ptw
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- if:
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properties:
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compatible:
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contains:
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enum:
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- qcom,msm8996-smmu-v2
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- qcom,sc7180-smmu-v2
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- qcom,sdm845-smmu-v2
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then:
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properties:
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clock-names:
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items:
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- const: bus
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- const: iface
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clocks:
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items:
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- description: bus clock required for downstream bus access and for
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the smmu ptw
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- description: interface clock required to access smmu's registers
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through the TCU's programming interface.
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- if:
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properties:
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compatible:
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contains:
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enum:
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- qcom,sa8775p-smmu-500
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- qcom,sc7280-smmu-500
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- qcom,sc8280xp-smmu-500
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then:
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properties:
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clock-names:
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items:
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- const: gcc_gpu_memnoc_gfx_clk
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- const: gcc_gpu_snoc_dvm_gfx_clk
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- const: gpu_cc_ahb_clk
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- const: gpu_cc_hlos1_vote_gpu_smmu_clk
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- const: gpu_cc_cx_gmu_clk
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- const: gpu_cc_hub_cx_int_clk
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- const: gpu_cc_hub_aon_clk
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clocks:
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items:
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- description: GPU memnoc_gfx clock
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- description: GPU snoc_dvm_gfx clock
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- description: GPU ahb clock
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- description: GPU hlos1_vote_GPU smmu clock
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- description: GPU cx_gmu clock
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- description: GPU hub_cx_int clock
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- description: GPU hub_aon clock
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- if:
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properties:
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compatible:
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contains:
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enum:
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- qcom,sc8180x-smmu-500
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- qcom,sm6350-smmu-v2
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- qcom,sm7150-smmu-v2
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- qcom,sm8150-smmu-500
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- qcom,sm8250-smmu-500
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then:
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properties:
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clock-names:
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items:
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- const: ahb
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- const: bus
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- const: iface
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clocks:
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items:
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- description: bus clock required for AHB bus access
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- description: bus clock required for downstream bus access and for
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the smmu ptw
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- description: interface clock required to access smmu's registers
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through the TCU's programming interface.
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- if:
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properties:
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compatible:
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items:
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- enum:
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- qcom,sm8350-smmu-500
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- const: qcom,adreno-smmu
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- const: qcom,smmu-500
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- const: arm,mmu-500
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then:
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properties:
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clock-names:
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items:
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- const: bus
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- const: iface
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- const: ahb
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- const: hlos1_vote_gpu_smmu
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- const: cx_gmu
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- const: hub_cx_int
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- const: hub_aon
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clocks:
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minItems: 7
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maxItems: 7
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- if:
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properties:
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compatible:
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items:
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- enum:
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- qcom,qcm2290-smmu-500
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- qcom,sm6115-smmu-500
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- qcom,sm6125-smmu-500
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- const: qcom,adreno-smmu
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- const: qcom,smmu-500
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- const: arm,mmu-500
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then:
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properties:
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clock-names:
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items:
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- const: mem
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- const: hlos
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- const: iface
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clocks:
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items:
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- description: GPU memory bus clock
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- description: Voter clock required for HLOS SMMU access
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- description: Interface clock required for register access
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- if:
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properties:
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compatible:
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items:
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- const: qcom,sm8450-smmu-500
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- const: qcom,adreno-smmu
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- const: qcom,smmu-500
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- const: arm,mmu-500
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then:
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properties:
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clock-names:
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items:
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- const: gmu
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- const: hub
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- const: hlos
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- const: bus
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- const: iface
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- const: ahb
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clocks:
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items:
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- description: GMU clock
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- description: GPU HUB clock
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- description: HLOS vote clock
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- description: GPU memory bus clock
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- description: GPU SNoC bus clock
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- description: GPU AHB clock
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- if:
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properties:
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compatible:
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items:
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- enum:
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- qcom,sm8550-smmu-500
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- qcom,sm8650-smmu-500
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- qcom,x1e80100-smmu-500
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- const: qcom,adreno-smmu
|
|
- const: qcom,smmu-500
|
|
- const: arm,mmu-500
|
|
then:
|
|
properties:
|
|
clock-names:
|
|
items:
|
|
- const: hlos
|
|
- const: bus
|
|
- const: iface
|
|
- const: ahb
|
|
|
|
clocks:
|
|
items:
|
|
- description: HLOS vote clock
|
|
- description: GPU memory bus clock
|
|
- description: GPU SNoC bus clock
|
|
- description: GPU AHB clock
|
|
|
|
# Disallow clocks for all other platforms with specific compatibles
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
enum:
|
|
- cavium,smmu-v2
|
|
- marvell,ap806-smmu-500
|
|
- nvidia,smmu-500
|
|
- qcom,qcs8300-smmu-500
|
|
- qcom,qdu1000-smmu-500
|
|
- qcom,sa8255p-smmu-500
|
|
- qcom,sc7180-smmu-500
|
|
- qcom,sdm670-smmu-500
|
|
- qcom,sdm845-smmu-500
|
|
- qcom,sdx55-smmu-500
|
|
- qcom,sdx65-smmu-500
|
|
- qcom,sm6350-smmu-500
|
|
- qcom,sm6375-smmu-500
|
|
then:
|
|
properties:
|
|
clock-names: false
|
|
clocks: false
|
|
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
const: qcom,sm6375-smmu-500
|
|
then:
|
|
properties:
|
|
power-domains:
|
|
items:
|
|
- description: SNoC MMU TBU RT GDSC
|
|
- description: SNoC MMU TBU NRT GDSC
|
|
- description: SNoC TURING MMU TBU0 GDSC
|
|
|
|
required:
|
|
- power-domains
|
|
else:
|
|
properties:
|
|
power-domains:
|
|
maxItems: 1
|
|
|
|
examples:
|
|
- |+
|
|
/* SMMU with stream matching or stream indexing */
|
|
smmu1: iommu@ba5e0000 {
|
|
compatible = "arm,smmu-v1";
|
|
reg = <0xba5e0000 0x10000>;
|
|
#global-interrupts = <2>;
|
|
interrupts = <0 32 4>,
|
|
<0 33 4>,
|
|
<0 34 4>, /* This is the first context interrupt */
|
|
<0 35 4>,
|
|
<0 36 4>,
|
|
<0 37 4>;
|
|
#iommu-cells = <1>;
|
|
};
|
|
|
|
/* device with two stream IDs, 0 and 7 */
|
|
master1 {
|
|
iommus = <&smmu1 0>,
|
|
<&smmu1 7>;
|
|
};
|
|
|
|
|
|
/* SMMU with stream matching */
|
|
smmu2: iommu@ba5f0000 {
|
|
compatible = "arm,smmu-v1";
|
|
reg = <0xba5f0000 0x10000>;
|
|
#global-interrupts = <2>;
|
|
interrupts = <0 38 4>,
|
|
<0 39 4>,
|
|
<0 40 4>, /* This is the first context interrupt */
|
|
<0 41 4>,
|
|
<0 42 4>,
|
|
<0 43 4>;
|
|
#iommu-cells = <2>;
|
|
};
|
|
|
|
/* device with stream IDs 0 and 7 */
|
|
master2 {
|
|
iommus = <&smmu2 0 0>,
|
|
<&smmu2 7 0>;
|
|
};
|
|
|
|
/* device with stream IDs 1, 17, 33 and 49 */
|
|
master3 {
|
|
iommus = <&smmu2 1 0x30>;
|
|
};
|
|
|
|
|
|
/* ARM MMU-500 with 10-bit stream ID input configuration */
|
|
smmu3: iommu@ba600000 {
|
|
compatible = "arm,mmu-500", "arm,smmu-v2";
|
|
reg = <0xba600000 0x10000>;
|
|
#global-interrupts = <2>;
|
|
interrupts = <0 44 4>,
|
|
<0 45 4>,
|
|
<0 46 4>, /* This is the first context interrupt */
|
|
<0 47 4>,
|
|
<0 48 4>,
|
|
<0 49 4>;
|
|
#iommu-cells = <1>;
|
|
/* always ignore appended 5-bit TBU number */
|
|
stream-match-mask = <0x7c00>;
|
|
};
|
|
|
|
bus {
|
|
/* bus whose child devices emit one unique 10-bit stream
|
|
ID each, but may master through multiple SMMU TBUs */
|
|
iommu-map = <0 &smmu3 0 0x400>;
|
|
|
|
|
|
};
|
|
|
|
- |+
|
|
/* Qcom's arm,smmu-v2 implementation */
|
|
#include <dt-bindings/interrupt-controller/arm-gic.h>
|
|
#include <dt-bindings/interrupt-controller/irq.h>
|
|
smmu4: iommu@d00000 {
|
|
compatible = "qcom,msm8996-smmu-v2", "qcom,smmu-v2";
|
|
reg = <0xd00000 0x10000>;
|
|
|
|
#global-interrupts = <1>;
|
|
interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>,
|
|
<GIC_SPI 320 IRQ_TYPE_LEVEL_HIGH>,
|
|
<GIC_SPI 321 IRQ_TYPE_LEVEL_HIGH>;
|
|
#iommu-cells = <1>;
|
|
power-domains = <&mmcc 0>;
|
|
|
|
clocks = <&mmcc 123>,
|
|
<&mmcc 124>;
|
|
clock-names = "bus", "iface";
|
|
};
|