From patchwork Fri Jul 28 06:34:01 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manikanta Mylavarapu X-Patchwork-Id: 13331251 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 63476C41513 for ; Fri, 28 Jul 2023 06:36:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231959AbjG1GgY (ORCPT ); Fri, 28 Jul 2023 02:36:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52246 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231946AbjG1GgX (ORCPT ); Fri, 28 Jul 2023 02:36:23 -0400 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 42E8E3A95; Thu, 27 Jul 2023 23:35:46 -0700 (PDT) Received: from pps.filterd (m0279872.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 36S5IRPJ011290; Fri, 28 Jul 2023 06:34:39 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding : content-type; s=qcppdkim1; bh=lave+Idhw93k3ysJ0KiM+XnyB2LoU06cJTz4afOad2E=; b=XUQ0AQxaiPNZYaj2hprkwTu27cUozoQv4qqgRskLOUaHj4dZjoqD485kKNdB3HlgS/ER b2lBvbIvndljFV6mQ6/tBkEQC2S0mo63VXCHW3M8hbbQYSoPr6Ub4hHVwDs2fzutGyRZ NdANsoj7GA3zBaLE+BglnLN75fCfVpDu98RmVFL8m6Z6t9L99qUbyVJE5PH5FDjEt4B6 eCrzhxPaXAK3TurGiuFEBpZmhYsc6LVuoxgwaKp0nhxEWNRa8u2NjJ811ru8St4YBAyW Gp+MmXlHApAmUVVIPeH30Jzc3gBIKC/K377bM9Gf/jPnTMiQ2Ki033NFjwTD6VkQvn2C Sw== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3s416m8nuc-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 28 Jul 2023 06:34:39 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA05.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 36S6Ybdx008492 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 28 Jul 2023 06:34:37 GMT Received: from hu-mmanikan-blr.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.30; Thu, 27 Jul 2023 23:34:31 -0700 From: Manikanta Mylavarapu To: , , , , , , , , , , , , , , , , , CC: , , , , Subject: [PATCH v4 00/11] Add multipd remoteproc support Date: Fri, 28 Jul 2023 12:04:01 +0530 Message-ID: <20230728063412.1641856-1-quic_mmanikan@quicinc.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: vsDVgCabSmdSJKEoy0_7nNLQRuA9ENK6 X-Proofpoint-ORIG-GUID: vsDVgCabSmdSJKEoy0_7nNLQRuA9ENK6 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-27_10,2023-07-26_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 bulkscore=0 malwarescore=0 suspectscore=0 clxscore=1015 mlxlogscore=950 impostorscore=0 spamscore=0 mlxscore=0 adultscore=0 priorityscore=1501 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2307280059 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org APSS brings Q6 out of reset and then Q6 brings WCSS block (wifi radio's) out of reset. --------------- --> |WiFi 2G radio| | -------------- | -------- ------- | | APSS | ---> |QDSP6| -----| --------- ------- | | | | -------------- --> |WiFi 5G radio| -------------- Problem here is if any radio crashes, subsequently other radio also should crash because Q6 crashed. Let's say 2G radio crashed, Q6 should pass this info to APSS. Only Q6 processor interrupts registered with APSS. Obviously Q6 should crash and raise fatal interrupt to APSS. Due to this 5G radio also crashed. But no issue in 5G radio, because of 2G radio crash 5G radio also impacted. In multi pd model, this problem is resolved. Here WCSS functionality (WiFi radio's) moved out from Q6 root pd to a separate user pd. Due to this, radio's independently pass their status info to APPS with out crashing Q6. So other radio's won't be impacted. Pd means protection domain. It's similar to process in Linux. Here QDSP6 processor runs each wifi radio functionality on a separate process. One process can't access other process resources, so this is termed as PD i.e protection domain. APPS QDSP6 ------- ------------- | | Crash notification | | ---------- | |<---------------------|----------|-------|WiFi | | | | | |->|2G radio| | | | ------- | | ---------- | | | | | | | |Root | Start/stop Q6 | | R | | | |PD |<---------------------|->| | | | |rproc| Crash notification | | O | | | | | | | | | | |User |Start/stop UserPD1(2G)| | O | | | |PD1 |----------------------|->| |-|----| |rproc| | | T | | | | | | | | | | |User |Start/stop UserPD2(5G)| | P | | | |PD2 |----------------------|->| |-|----| |rproc| | | D | | | | | | ------- | | ----------- | | Crash notification | | |->|WiFi | | |<---------------------|----------|-------|5G radio | ------- | | ----------- ------------ According to linux terminology, here consider Q6 as root i.e it provide all services, WCSS (wifi radio's) as user i.e it uses services provided by root. Since Q6 root & WCSS user pd's able to communicate with APSS individually, multipd remoteproc driver registers each PD with rproc framework. Here clients (Wifi host drivers) intrested on WCSS PD rproc, so multipd driver start's root pd in the context of WCSS user pd rproc start. Similarly on down path, root pd will be stopped after wcss user pd stopped. Here WCSS(user) PD is dependent on Q6(root) PD, so first q6 pd should be up before wcss pd. After wcss pd goes down, q6 pd should be turned off. IPQ5332, IPQ9574 supports multipd remoteproc driver. [V4]: - Fixed all comments and rebased on linux-next. - All userpd's rproc handles stored in linked list. - Removed data members from compatible specific data structure. - In probe itself, traverse for each userpd and call 'q6_register_userpd()'. [V3]: - Fixed all comments and rebased on linux-next. - IPQ5018 support is dropped because it's base port patches not yet merged. - IPQ5332 support is added with below patches. [03/11], [05/11], [06/11], [07/11], [10/11]. [V2]: - Fixed all comments and rebased on linux-next. - since clocks handled by QDSP6 firmware Added [04/13], [05/13], [06/13], [07/13] patches. Manikanta Mylavarapu (11): dt-bindings: remoteproc: qcom: Add support for multipd model clk: qcom: ipq5332: remove q6 bring up clocks clk: qcom: ipq9574: remove q6 bring up clocks dt-bindings: clock: qcom: gcc-ipq5332: remove q6 bring up clock macros dt-bindings: clock: qcom: gcc-ipq9574: remove q6 bring up clock macros firmware: qcom_scm: ipq5332: add support to pass metadata size firmware: qcom_scm: ipq5332: add msa lock/unlock support remoteproc: qcom: q6v5: Add multipd interrupts support remoteproc: qcom: Add Hexagon based multipd rproc driver arm64: dts: qcom: ipq5332: Add nodes to bringup multipd arm64: dts: qcom: ipq9574: Add nodes to bring up multipd .../bindings/remoteproc/qcom,multipd-pil.yaml | 189 ++++ arch/arm64/boot/dts/qcom/ipq5332-rdp441.dts | 21 + arch/arm64/boot/dts/qcom/ipq5332.dtsi | 60 ++ arch/arm64/boot/dts/qcom/ipq9574.dtsi | 59 ++ drivers/clk/qcom/gcc-ipq5332.c | 380 --------- drivers/clk/qcom/gcc-ipq9574.c | 326 ------- drivers/firmware/qcom_scm.c | 86 ++ drivers/firmware/qcom_scm.h | 3 + drivers/remoteproc/Kconfig | 19 + drivers/remoteproc/Makefile | 1 + drivers/remoteproc/qcom_q6v5.c | 37 +- drivers/remoteproc/qcom_q6v5.h | 11 + drivers/remoteproc/qcom_q6v5_mpd.c | 806 ++++++++++++++++++ include/dt-bindings/clock/qcom,ipq5332-gcc.h | 20 - include/dt-bindings/clock/qcom,ipq9574-gcc.h | 18 - include/linux/firmware/qcom/qcom_scm.h | 2 + 16 files changed, 1291 insertions(+), 747 deletions(-) create mode 100644 Documentation/devicetree/bindings/remoteproc/qcom,multipd-pil.yaml create mode 100644 drivers/remoteproc/qcom_q6v5_mpd.c