From patchwork Wed Mar 29 07:46:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mukesh Ojha X-Patchwork-Id: 669928 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 A402DC761A6 for ; Wed, 29 Mar 2023 07:47:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230232AbjC2Hrn (ORCPT ); Wed, 29 Mar 2023 03:47:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34262 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229750AbjC2Hrj (ORCPT ); Wed, 29 Mar 2023 03:47:39 -0400 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 72E46421E; Wed, 29 Mar 2023 00:47:26 -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 32T62q1H026836; Wed, 29 Mar 2023 07:47:23 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=zl6Aev0GuHxXwgicjeSDL0BKmzlXRcvwn/SV8yruS8Q=; b=e53eDvg7Zi1muAdmZmaSp45vTMK+aEKmZS4QNNm+1QGvZOSArM8S6y36hDSB0snVyvz/ 7JY6Oj56d6l68H+5uDI2jS8GQsjoWzvDhUZXa9tws7ljxPzLqaAhQJIKRifkGauCwlLh +Njp/3qAR4q+swiHZJZ7C3AKHhS/ZS7Rg+bAMMjU6LNqH5LDJsbjrColHjBEUENVmPx3 BpTflPs8A5IemjiCFczOljMvBulVfYmJJQDf3ru9o5HLh2/fRjzF3jMb7ERiwWI5k55x dmjV8n9oa9KLQb694UprwpF8SSxLWBeRXv9HvnfZDW9kl7jFFo7ndq5i9tFmCJbRgKgc 3Q== Received: from nasanppmta04.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3pmbs88nc7-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 29 Mar 2023 07:47:23 +0000 Received: from nasanex01c.na.qualcomm.com (nasanex01c.na.qualcomm.com [10.45.79.139]) by NASANPPMTA04.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 32T7lLp8013636 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 29 Mar 2023 07:47:21 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, 29 Mar 2023 00:47:18 -0700 From: Mukesh Ojha To: , , , CC: , , , Mukesh Ojha Subject: [PATCH v6 5/5] firmware: qcom_scm: Add multiple download mode support Date: Wed, 29 Mar 2023 13:16:52 +0530 Message-ID: <1680076012-10785-6-git-send-email-quic_mojha@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1680076012-10785-1-git-send-email-quic_mojha@quicinc.com> References: <1680076012-10785-1-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: IB1Q3HGCzdX9VDJmtj0myzZ2XtxGpxLJ X-Proofpoint-GUID: IB1Q3HGCzdX9VDJmtj0myzZ2XtxGpxLJ 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=2023-03-29_02,2023-03-28_02,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 adultscore=0 spamscore=0 bulkscore=0 phishscore=0 lowpriorityscore=0 malwarescore=0 mlxlogscore=999 clxscore=1015 priorityscore=1501 mlxscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2303200000 definitions=main-2303290063 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@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 fa6502a..780e50a 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 { @@ -1420,13 +1422,16 @@ 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"); @@ -1437,8 +1442,12 @@ 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) || @@ -1461,7 +1470,7 @@ 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) {