From patchwork Fri Nov 10 09:19:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manikanta Mylavarapu X-Patchwork-Id: 13452228 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6114310A22; Fri, 10 Nov 2023 09:20:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="Eqsft7z2" Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C928D2BE11; Fri, 10 Nov 2023 01:20:10 -0800 (PST) Received: from pps.filterd (m0279873.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3AA7gKUU022729; Fri, 10 Nov 2023 09:20:05 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=oSNnDU6xlPnzZURmfi26Tj3BiUebfuDYWVDpH+fPwyw=; b=Eqsft7z2+rm0XWqAMQvQ1zLHzxuII/+mW1eCqpG3zHAry0WH9dtS0T7WxLT5g+bFvE1B h7JQC1ZXolA4v6hG83z7Kl3irrVoduTnVWxG9oVAUIGHVzd1ZgePii/+V8Inuy6ekgGA yCliYkdT05ZVu6NHrBeWySuuRsx0NeiS73aekPWVX0crzUOfKQ16wJeY9OfF4fb+Qh+K P90X8QFpfV/rHzOdOY7EhvcEh0WrgONGfmnXR+o6nKWjxZsYOEBEbD84Eyotd2IDcBae w0nV157/vxgRdO8K9eN1+u3BLgI/1zNEipb4fDNPGTBWclR27U4SVdPlX/tS1LiH1JHp sQ== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3u8u2tu9tv-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 10 Nov 2023 09:20:05 +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 3AA9K3jO023716 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 10 Nov 2023 09:20:03 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 15.2.1118.39; Fri, 10 Nov 2023 01:19:56 -0800 From: Manikanta Mylavarapu To: , , , , , , , , , , , , , , , , , CC: , , , , Subject: [PATCH v6 00/11] Add multipd remoteproc support Date: Fri, 10 Nov 2023 14:49:28 +0530 Message-ID: <20231110091939.3025413-1-quic_mmanikan@quicinc.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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-ORIG-GUID: h-7j5tJZ8C7sT4Q0Kx3hxzoSgjSP3-ch X-Proofpoint-GUID: h-7j5tJZ8C7sT4Q0Kx3hxzoSgjSP3-ch X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.987,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-11-10_05,2023-11-09_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 impostorscore=0 lowpriorityscore=0 mlxscore=0 priorityscore=1501 mlxlogscore=708 bulkscore=0 adultscore=0 clxscore=1011 spamscore=0 phishscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311060000 definitions=main-2311100075 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. [V6]: - Added user pd remoteproc nodes in RDP442 dts - Removed extern keyword from msa lock/unlock function prototype [V5]: - Fixed all comments and rebased on linux-next. - Exported symbols to resolve errors reported here https://lore.kernel.org/oe-kbuild-all/202307301307.LGjSxmY8-lkp@intel.com/ [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-rdp442.dts | 59 ++ arch/arm64/boot/dts/qcom/ipq5332.dtsi | 59 ++ 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/qcom_scm.c | 86 ++ drivers/firmware/qcom/qcom_scm.h | 3 + drivers/remoteproc/Kconfig | 19 + drivers/remoteproc/Makefile | 1 + drivers/remoteproc/qcom_q6v5.c | 41 +- drivers/remoteproc/qcom_q6v5.h | 11 + drivers/remoteproc/qcom_q6v5_mpd.c | 802 ++++++++++++++++++ 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 + 17 files changed, 1349 insertions(+), 747 deletions(-) create mode 100644 Documentation/devicetree/bindings/remoteproc/qcom,multipd-pil.yaml create mode 100644 drivers/remoteproc/qcom_q6v5_mpd.c base-commit: 8728c14129df7a6e29188a2e737b4774fb200953