From patchwork Mon Jun 12 22:03:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gokul krishna Krishnakumar X-Patchwork-Id: 13277635 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 CB604C88CBA for ; Mon, 12 Jun 2023 22:04:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238450AbjFLWEB (ORCPT ); Mon, 12 Jun 2023 18:04:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33282 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238394AbjFLWDx (ORCPT ); Mon, 12 Jun 2023 18:03:53 -0400 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 321AD10C6; Mon, 12 Jun 2023 15:03:52 -0700 (PDT) Received: from pps.filterd (m0279866.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 35CLi67M028347; Mon, 12 Jun 2023 22:03:49 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=qcppdkim1; bh=3WXltcKIEjOND09jUBKDdMb3drTeXaN2myoMBG4SDDA=; b=BVMG8vP/28jAbeyQbmbNUk/m8hvj0Hw11ojJ4JZ4vE5BYmYsIEjMAojVtNPxVvZHu5VU b+i31exC6TC13ZVZnBK/1bLO1XbOuO4dc92ZZSnrQp1RCCVuHHHWurP2hYMNl8VWoJzx Md7+9F309R/2PFRTm8Qp6DBtZ3hdmSd0ysqE9i0F/Cw8Pax7PPLHk0DAoDopy6IXIRGd FNlcfp92M62NfO2TaDAianJKLwhh/pxFtMoX0AGoVSsdeYUOWS0d2EsFPffiBv0Qc6c0 sSjEmaqqzQQQgqhiJXyxgS5P3ivxThcKD+J8qnQCBhSvJakHgnwO2Y2VEuKpuodJv0GJ 1A== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3r6amhg3r9-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 12 Jun 2023 22:03:49 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA04.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 35CM3moW028010 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 12 Jun 2023 22:03:48 GMT Received: from hu-gokukris-sd.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 15.2.986.42; Mon, 12 Jun 2023 15:03:48 -0700 From: Gokul krishna Krishnakumar To: , , CC: Andy Gross , Bjorn Andersson , Konrad Dybcio , , Trilok Soni , Satya Durga Srinivasu Prabhala , Rajendra Nayak , "Elliot Berman" , Guru Das Srinagesh , Sibi Sankar , Melody Olvera , Gokul krishna Krishnakumar Subject: [PATCH v5 2/2] remoteproc: qcom: Add remoteproc tracing Date: Mon, 12 Jun 2023 15:03:26 -0700 Message-ID: <12b533c73b8c6b039e90f20afef1c8dcd30b80de.1686606835.git.quic_gokukris@quicinc.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: References: MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) 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: bri0ZtFADKYlM51uPx68FxxlW1gtz-E7 X-Proofpoint-GUID: bri0ZtFADKYlM51uPx68FxxlW1gtz-E7 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.573,FMLib:17.11.176.26 definitions=2023-06-12_16,2023-06-12_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 mlxscore=0 spamscore=0 phishscore=0 impostorscore=0 lowpriorityscore=0 bulkscore=0 mlxlogscore=914 adultscore=0 priorityscore=1501 malwarescore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2305260000 definitions=main-2306120189 Precedence: bulk List-ID: X-Mailing-List: linux-trace-kernel@vger.kernel.org This change attempts to add traces for start, stop, crash subsystem/subdevice events, these will serve as standard checkpoints in code and could help in debugging the failures in subdevice/subsystem prepare, start, stop and unprepare functions. This will also breakdown the time taken for each step in remoteproc bootup/shutdown process. Signed-off-by: Gokul krishna Krishnakumar --- drivers/remoteproc/qcom_common.c | 37 ++++++++++++++++++++++++ drivers/remoteproc/qcom_q6v5.c | 9 ++++++ drivers/remoteproc/remoteproc_core.c | 5 ++++ drivers/remoteproc/remoteproc_internal.h | 9 ++++-- 4 files changed, 58 insertions(+), 2 deletions(-) diff --git a/drivers/remoteproc/qcom_common.c b/drivers/remoteproc/qcom_common.c index a0d4238492e9..857e5a74c1eb 100644 --- a/drivers/remoteproc/qcom_common.c +++ b/drivers/remoteproc/qcom_common.c @@ -18,6 +18,7 @@ #include #include #include +#include #include "remoteproc_internal.h" #include "qcom_common.h" @@ -191,6 +192,10 @@ static int glink_subdev_start(struct rproc_subdev *subdev) glink->edge = qcom_glink_smem_register(glink->dev, glink->node); + trace_rproc_subdev_event(dev_name(glink->dev->parent), + "glink", "start", + PTR_ERR_OR_ZERO(glink->edge)); + return PTR_ERR_OR_ZERO(glink->edge); } @@ -199,6 +204,11 @@ static void glink_subdev_stop(struct rproc_subdev *subdev, bool crashed) struct qcom_rproc_glink *glink = to_glink_subdev(subdev); qcom_glink_smem_unregister(glink->edge); + + trace_rproc_subdev_event(dev_name(glink->dev->parent), + "glink", "stop", + PTR_ERR_OR_ZERO(glink->edge)); + glink->edge = NULL; } @@ -206,6 +216,10 @@ static void glink_subdev_unprepare(struct rproc_subdev *subdev) { struct qcom_rproc_glink *glink = to_glink_subdev(subdev); + trace_rproc_subdev_event(dev_name(glink->dev->parent), + "glink", "unprepare", + PTR_ERR_OR_ZERO(glink->edge)); + qcom_glink_ssr_notify(glink->ssr_name); } @@ -300,6 +314,10 @@ static int smd_subdev_start(struct rproc_subdev *subdev) { struct qcom_rproc_subdev *smd = to_smd_subdev(subdev); + trace_rproc_subdev_event(dev_name(smd->dev->parent), + "smd", "start", + PTR_ERR_OR_ZERO(smd->edge)); + smd->edge = qcom_smd_register_edge(smd->dev, smd->node); return PTR_ERR_OR_ZERO(smd->edge); @@ -309,6 +327,10 @@ static void smd_subdev_stop(struct rproc_subdev *subdev, bool crashed) { struct qcom_rproc_subdev *smd = to_smd_subdev(subdev); + trace_rproc_subdev_event(dev_name(smd->dev->parent), + "smd", "stop", + PTR_ERR_OR_ZERO(smd->edge)); + qcom_smd_unregister_edge(smd->edge); smd->edge = NULL; } @@ -425,6 +447,10 @@ static int ssr_notify_prepare(struct rproc_subdev *subdev) .crashed = false, }; + trace_rproc_subdev_event(ssr->info->name, + "ssr", "QCOM_SSR_BEFORE_POWERUP", + data.crashed); + srcu_notifier_call_chain(&ssr->info->notifier_list, QCOM_SSR_BEFORE_POWERUP, &data); return 0; @@ -437,6 +463,9 @@ static int ssr_notify_start(struct rproc_subdev *subdev) .name = ssr->info->name, .crashed = false, }; + trace_rproc_subdev_event(ssr->info->name, + "ssr", "QCOM_SSR_AFTER_POWERUP", + data.crashed); srcu_notifier_call_chain(&ssr->info->notifier_list, QCOM_SSR_AFTER_POWERUP, &data); @@ -451,6 +480,10 @@ static void ssr_notify_stop(struct rproc_subdev *subdev, bool crashed) .crashed = crashed, }; + trace_rproc_subdev_event(ssr->info->name, + "ssr", "QCOM_SSR_BEFORE_SHUTDOWN", + data.crashed); + srcu_notifier_call_chain(&ssr->info->notifier_list, QCOM_SSR_BEFORE_SHUTDOWN, &data); } @@ -463,6 +496,10 @@ static void ssr_notify_unprepare(struct rproc_subdev *subdev) .crashed = false, }; + trace_rproc_subdev_event(ssr->info->name, + "ssr", "QCOM_SSR_AFTER_SHUTDOWN", + data.crashed); + srcu_notifier_call_chain(&ssr->info->notifier_list, QCOM_SSR_AFTER_SHUTDOWN, &data); } diff --git a/drivers/remoteproc/qcom_q6v5.c b/drivers/remoteproc/qcom_q6v5.c index 192c7aa0e39e..bf14f01c88c4 100644 --- a/drivers/remoteproc/qcom_q6v5.c +++ b/drivers/remoteproc/qcom_q6v5.c @@ -15,6 +15,7 @@ #include #include #include +#include #include "qcom_common.h" #include "qcom_q6v5.h" @@ -113,6 +114,7 @@ static irqreturn_t q6v5_wdog_interrupt(int irq, void *data) dev_err(q6v5->dev, "watchdog without message\n"); q6v5->running = false; + trace_rproc_interrupt_event(q6v5->rproc, "q6v5_wdog", msg); rproc_report_crash(q6v5->rproc, RPROC_WATCHDOG); return IRQ_HANDLED; @@ -134,6 +136,7 @@ static irqreturn_t q6v5_fatal_interrupt(int irq, void *data) dev_err(q6v5->dev, "fatal error without message\n"); q6v5->running = false; + trace_rproc_interrupt_event(q6v5->rproc, "fatal", msg); rproc_report_crash(q6v5->rproc, RPROC_FATAL_ERROR); return IRQ_HANDLED; @@ -165,6 +168,8 @@ int qcom_q6v5_wait_for_start(struct qcom_q6v5 *q6v5, int timeout) if (!ret) disable_irq(q6v5->handover_irq); + trace_rproc_interrupt_event(q6v5->rproc, "Ready", !ret ? "-ETIMEDOUT":"done"); + return !ret ? -ETIMEDOUT : 0; } EXPORT_SYMBOL_GPL(qcom_q6v5_wait_for_start); @@ -180,6 +185,8 @@ static irqreturn_t q6v5_handover_interrupt(int irq, void *data) q6v5->handover_issued = true; + trace_rproc_interrupt_event(q6v5->rproc, "handover", "Proxy votes removed"); + return IRQ_HANDLED; } @@ -216,6 +223,8 @@ int qcom_q6v5_request_stop(struct qcom_q6v5 *q6v5, struct qcom_sysmon *sysmon) qcom_smem_state_update_bits(q6v5->state, BIT(q6v5->stop_bit), 0); + trace_rproc_interrupt_event(q6v5->rproc, "Stop", ret ? "done":"-EETIMEDOUT"); + return ret == 0 ? -ETIMEDOUT : 0; } EXPORT_SYMBOL_GPL(qcom_q6v5_request_stop); diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index 695cce218e8c..64c09eff67fe 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -38,6 +38,7 @@ #include #include #include +#include #include "remoteproc_internal.h" @@ -1648,6 +1649,7 @@ static int rproc_attach(struct rproc *rproc) if (ret) goto clean_up_resources; + trace_rproc_start_event(rproc, ret); return 0; clean_up_resources: @@ -1730,6 +1732,8 @@ static int rproc_stop(struct rproc *rproc, bool crashed) return ret; } + trace_rproc_stop_event(rproc, crashed ? "crash stop" : "stop"); + rproc_unprepare_subdevices(rproc); rproc->state = RPROC_OFFLINE; @@ -1951,6 +1955,7 @@ int rproc_boot(struct rproc *rproc) } ret = rproc_fw_boot(rproc, firmware_p); + trace_rproc_start_event(rproc, ret); release_firmware(firmware_p); } diff --git a/drivers/remoteproc/remoteproc_internal.h b/drivers/remoteproc/remoteproc_internal.h index d4dbb8d1d80c..f7cb31b94a60 100644 --- a/drivers/remoteproc/remoteproc_internal.h +++ b/drivers/remoteproc/remoteproc_internal.h @@ -14,6 +14,7 @@ #include #include +#include struct rproc; @@ -171,8 +172,13 @@ u64 rproc_get_boot_addr(struct rproc *rproc, const struct firmware *fw) static inline int rproc_load_segments(struct rproc *rproc, const struct firmware *fw) { - if (rproc->ops->load) - return rproc->ops->load(rproc, fw); + if (rproc->ops->load) { + int ret; + + ret = rproc->ops->load(rproc, fw); + trace_rproc_load_segment_event(rproc, ret); + return ret; + } return -EINVAL; }