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-Qualcomm Technologies, Inc. FastRPC Driver
-
-The FastRPC implements an IPC (Inter-Processor Communication)
-mechanism that allows for clients to transparently make remote method
-invocations across DSP and APPS boundaries. This enables developers
-to offload tasks to the DSP and free up the application processor for
-other tasks.
-
-- compatible:
- Usage: required
- Value type: <stringlist>
- Definition: must be "qcom,fastrpc"
-
-- label
- Usage: required
- Value type: <string>
- Definition: should specify the dsp domain name this fastrpc
- corresponds to. must be one of this: "adsp", "mdsp", "sdsp", "cdsp"
-
-- qcom,non-secure-domain:
- Usage: required
- Value type: <boolean>
- Definition: Property to specify that dsp domain is non-secure.
-
-- qcom,vmids:
- Usage: optional
- Value type: <u32 array>
- Definition: Virtual machine IDs for remote processor.
-
-- #address-cells
- Usage: required
- Value type: <u32>
- Definition: Must be 1
-
-- #size-cells
- Usage: required
- Value type: <u32>
- Definition: Must be 0
-
-= COMPUTE BANKS
-Each subnode of the Fastrpc represents compute context banks available
-on the dsp.
-- All Compute context banks MUST contain the following properties:
-
-- compatible:
- Usage: required
- Value type: <stringlist>
- Definition: must be "qcom,fastrpc-compute-cb"
-
-- reg
- Usage: required
- Value type: <u32>
- Definition: Context Bank ID.
-
-- qcom,nsessions:
- Usage: Optional
- Value type: <u32>
- Defination: A value indicating how many sessions can share this
- context bank. Defaults to 1 when this property
- is not specified.
-
-Example:
-
-adsp-pil {
- compatible = "qcom,msm8996-adsp-pil";
- ...
- smd-edge {
- label = "lpass";
- fastrpc {
- compatible = "qcom,fastrpc";
- qcom,smd-channels = "fastrpcsmd-apps-dsp";
- label = "adsp";
- #address-cells = <1>;
- #size-cells = <0>;
-
- cb@1 {
- compatible = "qcom,fastrpc-compute-cb";
- reg = <1>;
- };
-
- cb@2 {
- compatible = "qcom,fastrpc-compute-cb";
- reg = <2>;
- };
- ...
- };
- };
-};