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https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git
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974c6faf76
Qualcomm Generic Packet router aka GPR is the IPC mechanism found in AudioReach next generation signal processing framework to perform command and response messages between various processors. GPR has concepts of static and dynamic port, all static services like APM (Audio Processing Manager), PRM (Proxy resource manager) have fixed port numbers where as dynamic services like graphs have dynamic port numbers which are allocated at runtime. All GPR packet messages will have source and destination domain and port along with opcode and payload. This support is added using existing APR driver to reuse most of the code. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20210927135559.738-5-srinivas.kandagatla@linaro.org
178 lines
4.7 KiB
YAML
178 lines
4.7 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: "http://devicetree.org/schemas/soc/qcom/qcom,apr.yaml#"
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$schema: "http://devicetree.org/meta-schemas/core.yaml#"
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title: Qualcomm APR/GPR (Asynchronous/Generic Packet Router) binding
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maintainers:
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- Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
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description: |
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This binding describes the Qualcomm APR/GPR, APR/GPR is a IPC protocol for
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communication between Application processor and QDSP. APR/GPR is mainly
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used for audio/voice services on the QDSP.
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properties:
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compatible:
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enum:
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- qcom,apr-v2
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- qcom,gpr
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qcom,apr-domain:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [1, 2, 3, 4, 5, 6, 7]
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description:
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Selects the processor domain for apr
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1 = APR simulator
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2 = PC Domain
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3 = Modem Domain
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4 = ADSP Domain
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5 = Application processor Domain
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6 = Modem2 Domain
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7 = Application Processor2 Domain
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deprecated: true
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qcom,domain:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 1
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maximum: 7
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description:
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Selects the processor domain for apr
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1 = APR simulator
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2 = PC Domain
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3 = Modem Domain
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4 = ADSP Domain
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5 = Application processor Domain
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6 = Modem2 Domain
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7 = Application Processor2 Domain
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Selects the processor domain for gpr
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1 = Modem Domain
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2 = Audio DSP Domain
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3 = Application Processor Domain
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'#address-cells':
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const: 1
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'#size-cells':
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const: 0
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#APR/GPR Services
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patternProperties:
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"^service@[1-9a-d]$":
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type: object
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description:
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APR/GPR node's client devices use subnodes for desired static port services.
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properties:
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compatible:
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enum:
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- qcom,q6core
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- qcom,q6asm
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- qcom,q6afe
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- qcom,q6adm
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- qcom,q6apm
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- qcom,q6prm
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reg:
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minimum: 1
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maximum: 13
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description:
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APR Service ID
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3 = DSP Core Service
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4 = Audio Front End Service.
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5 = Voice Stream Manager Service.
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6 = Voice processing manager.
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7 = Audio Stream Manager Service.
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8 = Audio Device Manager Service.
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9 = Multimode voice manager.
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10 = Core voice stream.
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11 = Core voice processor.
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12 = Ultrasound stream manager.
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13 = Listen stream manager.
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GPR Service ID
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1 = Audio Process Manager Service
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2 = Proxy Resource Manager Service.
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3 = AMDB Service.
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4 = Voice processing manager.
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qcom,protection-domain:
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$ref: /schemas/types.yaml#/definitions/string-array
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description: protection domain service name and path for apr service
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possible values are
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"avs/audio", "msm/adsp/audio_pd".
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"kernel/elf_loader", "msm/modem/wlan_pd".
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"tms/servreg", "msm/adsp/audio_pd".
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"tms/servreg", "msm/modem/wlan_pd".
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"tms/servreg", "msm/slpi/sensor_pd".
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'#address-cells':
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const: 1
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'#size-cells':
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const: 0
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patternProperties:
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"^.*@[0-9a-f]+$":
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type: object
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description:
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Service based devices like clock controllers or digital audio interfaces.
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additionalProperties: false
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required:
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- compatible
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- qcom,domain
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/soc/qcom,apr.h>
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apr {
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compatible = "qcom,apr-v2";
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qcom,domain = <APR_DOMAIN_ADSP>;
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#address-cells = <1>;
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#size-cells = <0>;
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q6core: service@3 {
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compatible = "qcom,q6core";
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reg = <APR_SVC_ADSP_CORE>;
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qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd";
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};
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q6afe: service@4 {
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compatible = "qcom,q6afe";
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reg = <APR_SVC_AFE>;
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qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd";
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};
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q6asm: service@7 {
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compatible = "qcom,q6asm";
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reg = <APR_SVC_ASM>;
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qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd";
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};
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q6adm: service@8 {
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compatible = "qcom,q6adm";
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reg = <APR_SVC_ADM>;
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qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd";
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};
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};
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- |
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#include <dt-bindings/soc/qcom,gpr.h>
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gpr {
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compatible = "qcom,gpr";
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qcom,domain = <GPR_DOMAIN_ID_ADSP>;
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#address-cells = <1>;
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#size-cells = <0>;
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service@1 {
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compatible = "qcom,q6apm";
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reg = <GPR_APM_MODULE_IID>;
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qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd";
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};
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};
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