From patchwork Tue Jul 5 10:14:17 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yogesh Lal X-Patchwork-Id: 12906300 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 E5A6BC433EF for ; Tue, 5 Jul 2022 10:14:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232130AbiGEKOq (ORCPT ); Tue, 5 Jul 2022 06:14:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37842 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232045AbiGEKOp (ORCPT ); Tue, 5 Jul 2022 06:14:45 -0400 Received: from alexa-out-sd-02.qualcomm.com (alexa-out-sd-02.qualcomm.com [199.106.114.39]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9208E13FB8; Tue, 5 Jul 2022 03:14:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1657016082; x=1688552082; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=ZcLSmiENv+Qn2Ni4ALAByedzuulyYpiLnm+kBY0HlKc=; b=adSPfST0L6nielm8DfodZucl21Ngxs6CoOOHszdIrO02q0MxdA8JaXZL umgPpOeQUCTIUueqN50A1U1DEb4aDPMrofpfoJmXP8xt0apzfp8Elh8a/ NJDa+/+hoEmdmGBmw9Go9ruXqA6i9jadynkJ4EYQukxuAwR3dvFclmcp7 c=; Received: from unknown (HELO ironmsg03-sd.qualcomm.com) ([10.53.140.143]) by alexa-out-sd-02.qualcomm.com with ESMTP; 05 Jul 2022 03:14:42 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg03-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Jul 2022 03:14:42 -0700 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Tue, 5 Jul 2022 03:14:41 -0700 Received: from hu-ylal-hyd.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 15.2.986.22; Tue, 5 Jul 2022 03:14:38 -0700 From: Yogesh Lal To: , CC: , , , Siddharth Gupta , Yogesh Lal Subject: [RESEND V3 2/2] remoteproc: qcom: Add full coredump fallback mechanism Date: Tue, 5 Jul 2022 15:44:17 +0530 Message-ID: <1657016057-22806-3-git-send-email-quic_ylal@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1657016057-22806-1-git-send-email-quic_ylal@quicinc.com> References: <1657016057-22806-1-git-send-email-quic_ylal@quicinc.com> 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) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Siddharth Gupta If a remoteproc's firmware does not support minidump but the driver adds an ID, the minidump driver does not collect any coredumps when the remoteproc crashes. This hinders the purpose of coredump collection. This change adds a fallback mechanism in the event of a crash. Signed-off-by: Siddharth Gupta Reviewed-by: Sibi Sankar Signed-off-by: Yogesh Lal --- drivers/remoteproc/qcom_common.c | 14 ++++++++++++-- drivers/remoteproc/qcom_q6v5_pas.c | 1 + 2 files changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/remoteproc/qcom_common.c b/drivers/remoteproc/qcom_common.c index 4b91e3c..246e716 100644 --- a/drivers/remoteproc/qcom_common.c +++ b/drivers/remoteproc/qcom_common.c @@ -163,12 +163,22 @@ void qcom_minidump(struct rproc *rproc, unsigned int minidump_id) */ if (subsystem->regions_baseptr == 0 || le32_to_cpu(subsystem->status) != 1 || - le32_to_cpu(subsystem->enabled) != MD_SS_ENABLED || - le32_to_cpu(subsystem->encryption_status) != MD_SS_ENCR_DONE) { + le32_to_cpu(subsystem->enabled) != MD_SS_ENABLED) { + return rproc_coredump(rproc); + } + + if (le32_to_cpu(subsystem->encryption_status) != MD_SS_ENCR_DONE) { dev_err(&rproc->dev, "Minidump not ready, skipping\n"); return; } + /** + * Clear out the dump segments populated by parse_fw before + * re-populating them with minidump segments. + */ + + rproc_coredump_cleanup(rproc); + ret = qcom_add_minidump_segments(rproc, subsystem); if (ret) { dev_err(&rproc->dev, "Failed with error: %d while adding minidump entries\n", ret); diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c index 401b1ec..6e5cbca 100644 --- a/drivers/remoteproc/qcom_q6v5_pas.c +++ b/drivers/remoteproc/qcom_q6v5_pas.c @@ -274,6 +274,7 @@ static const struct rproc_ops adsp_minidump_ops = { .start = adsp_start, .stop = adsp_stop, .da_to_va = adsp_da_to_va, + .parse_fw = qcom_register_dump_segments, .load = adsp_load, .panic = adsp_panic, .coredump = adsp_minidump,