From patchwork Tue Nov 30 12:57:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jeya R X-Patchwork-Id: 12647265 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3960EC4332F for ; Tue, 30 Nov 2021 12:58:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233884AbhK3NBa (ORCPT ); Tue, 30 Nov 2021 08:01:30 -0500 Received: from alexa-out.qualcomm.com ([129.46.98.28]:64610 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232308AbhK3NBW (ORCPT ); Tue, 30 Nov 2021 08:01:22 -0500 Received: from ironmsg07-lv.qualcomm.com ([10.47.202.151]) by alexa-out.qualcomm.com with ESMTP; 30 Nov 2021 04:58:03 -0800 X-QCInternal: smtphost Received: from ironmsg01-blr.qualcomm.com ([10.86.208.130]) by ironmsg07-lv.qualcomm.com with ESMTP/TLS/AES256-SHA; 30 Nov 2021 04:58:02 -0800 X-QCInternal: smtphost Received: from ekangupt-linux.qualcomm.com ([10.204.67.11]) by ironmsg01-blr.qualcomm.com with ESMTP; 30 Nov 2021 18:27:55 +0530 Received: by ekangupt-linux.qualcomm.com (Postfix, from userid 2319895) id 4EEC6203E; Tue, 30 Nov 2021 18:27:54 +0530 (IST) From: Jeya R To: linux-arm-msm@vger.kernel.org, srinivas.kandagatla@linaro.org Cc: Jeya R , gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, fastrpc.upstream@qti.qualcomm.com, bkumar@qti.qualcomm.com, ekangupt@qti.qualcomm.com, jeyr@qti.qualcomm.com Subject: [PATCH 1/3] dt-bindings: misc: add fastrpc domain vmid property Date: Tue, 30 Nov 2021 18:27:48 +0530 Message-Id: <1638277072-6459-2-git-send-email-jeyr@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1638277072-6459-1-git-send-email-jeyr@codeaurora.org> References: <1638277072-6459-1-git-send-email-jeyr@codeaurora.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org 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/)" Signed-off-by: Jeya R --- .../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: - Definition: must be "qcom,fastrpc" - -- label - Usage: required - Value type: - 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: - Definition: Must be 1 - -- #size-cells - Usage: required - Value type: - 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: - Definition: must be "qcom,fastrpc-compute-cb" - -- reg - Usage: required - Value type: - Definition: Context Bank ID. - -- qcom,nsessions: - Usage: Optional - Value type: - 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 + +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 + 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>; + }; + }; + }; + };