From patchwork Wed May 3 17:02:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mukesh Ojha X-Patchwork-Id: 13230415 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 ABE3CC7EE29 for ; Wed, 3 May 2023 17:21:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229574AbjECRVa (ORCPT ); Wed, 3 May 2023 13:21:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56728 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229825AbjECRV3 (ORCPT ); Wed, 3 May 2023 13:21:29 -0400 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A05452D69; Wed, 3 May 2023 10:21:27 -0700 (PDT) Received: from pps.filterd (m0279868.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 343F8jFY029276; Wed, 3 May 2023 17:04:42 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-type; s=qcppdkim1; bh=qbH7MY6GGBgS0pDOVGPhqlpYiVtd0OBI+s2aNgE53Hg=; b=ZsLgDONGInc7bLVlS4UT6DtybDKv1nq2gwI2A7Vxdqwwl7X3noaGIh2Nj4zsmbx6jdPS xGp4MDFmP277tytp0wXKtKuOJTvhvEJesSiT+lYnm38S2PuPWNMuh6syzQdSaaUrh8eQ zytEQdd23I1GxRCcSpw+EqDNUMFBUj4imkbNz4yQ/aj0Ppsjkz13Rvb+G8X5sfmsqjUz ceMtEjrG9jcO2eKuuG5WlJRL+3IYxRi99vL0x/CDR5wAS042V8Z2Uuv478c8U+dS0A86 f8M0DgAlvJl+PqLGUmp0KVpb0l+8S4DUwGMKaSGwSVLBTmBcD6Dm8S3YMwnFhAecpMgg jQ== Received: from nasanppmta02.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3qbmy48xym-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 03 May 2023 17:04:42 +0000 Received: from nasanex01c.na.qualcomm.com (nasanex01c.na.qualcomm.com [10.45.79.139]) by NASANPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 343H4fEb005094 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 3 May 2023 17:04:41 GMT Received: from hu-mojha-hyd.qualcomm.com (10.80.80.8) by nasanex01c.na.qualcomm.com (10.45.79.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.42; Wed, 3 May 2023 10:04:35 -0700 From: Mukesh Ojha To: , , , , , , , , , , , , , CC: , , , , , , "Mukesh Ojha" Subject: [PATCH v3 18/18] firmware: qcom_scm: Add multiple download mode support Date: Wed, 3 May 2023 22:32:32 +0530 Message-ID: <1683133352-10046-19-git-send-email-quic_mojha@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1683133352-10046-1-git-send-email-quic_mojha@quicinc.com> References: <1683133352-10046-1-git-send-email-quic_mojha@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nasanex01c.na.qualcomm.com (10.45.79.139) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: VbcRgKWOMRSE0qF1RQWPhjN5R6oFkcI2 X-Proofpoint-GUID: VbcRgKWOMRSE0qF1RQWPhjN5R6oFkcI2 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-05-03_12,2023-05-03_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 bulkscore=0 priorityscore=1501 malwarescore=0 suspectscore=0 impostorscore=0 adultscore=0 mlxlogscore=999 spamscore=0 phishscore=0 clxscore=1015 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2303200000 definitions=main-2305030145 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Currently, scm driver only supports full dump when download mode is selected. Add support to enable minidump as well as enable it along with fulldump. Signed-off-by: Mukesh Ojha --- drivers/firmware/qcom_scm.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c index 4e8fd4e..be7adc6 100644 --- a/drivers/firmware/qcom_scm.c +++ b/drivers/firmware/qcom_scm.c @@ -32,6 +32,8 @@ static u32 download_mode; #define QCOM_DOWNLOAD_MODE_MASK 0x30 #define QCOM_DOWNLOAD_FULLDUMP 0x1 +#define QCOM_DOWNLOAD_MINIDUMP 0x2 +#define QCOM_DOWNLOAD_BOTHDUMP (QCOM_DOWNLOAD_FULLDUMP | QCOM_DOWNLOAD_MINIDUMP) #define QCOM_DOWNLOAD_NODUMP 0x0 struct qcom_scm { @@ -1422,13 +1424,16 @@ static irqreturn_t qcom_scm_irq_handler(int irq, void *data) return IRQ_HANDLED; } - static int get_download_mode(char *buffer, const struct kernel_param *kp) { int len = 0; if (download_mode == QCOM_DOWNLOAD_FULLDUMP) len = sysfs_emit(buffer, "full\n"); + else if (download_mode == QCOM_DOWNLOAD_MINIDUMP) + len = sysfs_emit(buffer, "mini\n"); + else if (download_mode == QCOM_DOWNLOAD_BOTHDUMP) + len = sysfs_emit(buffer, "full,mini\n"); else if (download_mode == QCOM_DOWNLOAD_NODUMP) len = sysfs_emit(buffer, "off\n"); @@ -1439,8 +1444,12 @@ static int set_download_mode(const char *val, const struct kernel_param *kp) { u32 old = download_mode; - if (sysfs_streq(val, "full")) { + if (sysfs_streq(val, "full,mini") || sysfs_streq(val, "mini,full")) { + download_mode = QCOM_DOWNLOAD_BOTHDUMP; + } else if (sysfs_streq(val, "full")) { download_mode = QCOM_DOWNLOAD_FULLDUMP; + } else if (sysfs_streq(val, "mini")) { + download_mode = QCOM_DOWNLOAD_MINIDUMP; } else if (sysfs_streq(val, "off")) { download_mode = QCOM_DOWNLOAD_NODUMP; } else if (kstrtouint(val, 0, &download_mode) || @@ -1463,7 +1472,7 @@ static const struct kernel_param_ops download_mode_param_ops = { module_param_cb(download_mode, &download_mode_param_ops, NULL, 0644); MODULE_PARM_DESC(download_mode, - "Download mode: off/full or 0/1 for existing users"); + "download mode: off/full/mini/full,mini or mini,full and 0/1 for existing users"); static int qcom_scm_probe(struct platform_device *pdev) {