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1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/reserved-memory/qcom,rmtfs-mem.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: Qualcomm Remote File System Memory8 9description: |10 This binding describes the Qualcomm remote filesystem memory, which serves the11 purpose of describing the shared memory region used for remote processors to12 access block device data using the Remote Filesystem protocol.13 14maintainers:15 - Bjorn Andersson <bjorn.andersson@linaro.org>16 17allOf:18 - $ref: reserved-memory.yaml19 20properties:21 compatible:22 const: qcom,rmtfs-mem23 24 qcom,client-id:25 $ref: /schemas/types.yaml#/definitions/uint3226 description: >27 identifier of the client to use this region for buffers28 29 qcom,use-guard-pages:30 type: boolean31 description: >32 Indicates that the firmware, or hardware, does not gracefully handle33 memory protection of this region when placed adjacent to other protected34 memory regions, and that padding around the used portion of the memory35 region is necessary.36 37 When this is set, the first and last page should be left unused, and the38 effective size of the region will thereby shrink with two pages.39 40 qcom,vmid:41 $ref: /schemas/types.yaml#/definitions/uint32-array42 description: >43 Array of vmids of the remote processors, to set up memory protection44 minItems: 145 maxItems: 246 47required:48 - qcom,client-id49 50unevaluatedProperties: false51 52examples:53 - |54 reserved-memory {55 #address-cells = <1>;56 #size-cells = <1>;57 ranges;58 59 rmtfs@86700000 {60 compatible = "qcom,rmtfs-mem";61 reg = <0x86700000 0xe0000>;62 no-map;63 64 qcom,client-id = <1>;65 };66 };67