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Date: Tue, 30 Nov 2021 13:17:28 +0000
From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To: Jeya R <jeyr@...eaurora.org>, linux-arm-msm@...r.kernel.org
Cc: gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
fastrpc.upstream@....qualcomm.com, bkumar@....qualcomm.com,
ekangupt@....qualcomm.com, jeyr@....qualcomm.com
Subject: Re: [PATCH 1/3] dt-bindings: misc: add fastrpc domain vmid property
On 30/11/2021 12:57, Jeya R wrote:
> Add fastrpc domain virtual machine IDs property. This property is used
> to setup memory protection for remote processor.
>
> "This patch depends on “dt-bindings: misc: fastrpc convert bindings to yaml"
> (https://patchwork.kernel.org/project/linux-arm-msm/patch/20211130092846.18804-1-srinivas.kandagatla@linaro.org/)"
>
This comment should go after ---
There is something wrong with the patch, You seems to have send wrong
patch which does not match the subject line nor I see vmid property.
--srini
> Signed-off-by: Jeya R <jeyr@...eaurora.org>
> ---
> .../devicetree/bindings/misc/qcom,fastrpc.txt | 78 ---------------
> .../devicetree/bindings/misc/qcom,fastrpc.yaml | 109 +++++++++++++++++++++
> 2 files changed, 109 insertions(+), 78 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/misc/qcom,fastrpc.txt
> create mode 100644 Documentation/devicetree/bindings/misc/qcom,fastrpc.yaml
>
> diff --git a/Documentation/devicetree/bindings/misc/qcom,fastrpc.txt b/Documentation/devicetree/bindings/misc/qcom,fastrpc.txt
> deleted file mode 100644
> index 2a1827a..0000000
> --- a/Documentation/devicetree/bindings/misc/qcom,fastrpc.txt
> +++ /dev/null
> @@ -1,78 +0,0 @@
> -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"
> -
> -- #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>;
> - };
> - ...
> - };
> - };
> -};
> diff --git a/Documentation/devicetree/bindings/misc/qcom,fastrpc.yaml b/Documentation/devicetree/bindings/misc/qcom,fastrpc.yaml
> new file mode 100644
> index 0000000..a9fd93c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/misc/qcom,fastrpc.yaml
> @@ -0,0 +1,109 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/misc/qcom,fastrpc.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: Qualcomm Technologies, Inc. FastRPC Driver
> +
> +maintainers:
> + - Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> +
> +description: |
> + This binding describes Qualcomm FastRPC 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.
> +
> +properties:
> + compatible:
> + const: qcom,fastrpc
> +
> + label:
> + enum:
> + - adsp
> + - mdsp
> + - sdsp
> + - cdsp
> +
> + qcom,nsessions:
> + $ref: "/schemas/types.yaml#/definitions/uint32-array"
> + description: Virtual machine IDs of remote processor which is used to
> + setup memory protection.
> +
> + "#address-cells":
> + const: 1
> +
> + "#size-cells":
> + const: 0
> +
> +patternProperties:
> + "^cb@[0-9a-f]$":
> + type: object
> + description: |
> + Compute context bank
> +
> + properties:
> + compatible:
> + const: qcom,fastrpc-compute-cb
> +
> + reg:
> + maxItems: 1
> + description: Context Bank ID
> +
> + qcom,nsessions:
> + $ref: /schemas/types.yaml#/definitions/uint32
> + description: How many sessions can share this context bank.
> + Defaults to 1 when this property is not specified.
> +
> + required:
> + - compatible
> + - reg
> +
> + additionalProperties: false
> +
> +required:
> + - compatible
> + - label
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/irq.h>
> + adsp {
> + compatible = "qcom,msm8996-adsp-pil";
> + interrupts-extended = <&intc 0 162 IRQ_TYPE_EDGE_RISING>,
> + <&smp2p_adsp_in 0 IRQ_TYPE_EDGE_RISING>,
> + <&smp2p_adsp_in 1 IRQ_TYPE_EDGE_RISING>,
> + <&smp2p_adsp_in 2 IRQ_TYPE_EDGE_RISING>,
> + <&smp2p_adsp_in 3 IRQ_TYPE_EDGE_RISING>;
> + interrupt-names = "wdog", "fatal", "ready", "handover", "stop-ack";
> + clocks = <&xo_board>;
> + clock-names = "xo";
> + memory-region = <&adsp_region>;
> + qcom,smem-states = <&smp2p_adsp_out 0>;
> + qcom,smem-state-names = "stop";
> +
> + smd-edge {
> + label = "lpass";
> +
> + fastrpc {
> + compatible = "qcom,fastrpc";
> + 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>;
> + };
> + };
> + };
> + };
>
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