From patchwork Tue May 31 09:39:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yogesh Lal X-Patchwork-Id: 12865208 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 D22D3C433EF for ; Tue, 31 May 2022 09:39:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232814AbiEaJjt (ORCPT ); Tue, 31 May 2022 05:39:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45392 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245330AbiEaJjr (ORCPT ); Tue, 31 May 2022 05:39:47 -0400 Received: from alexa-out-sd-01.qualcomm.com (alexa-out-sd-01.qualcomm.com [199.106.114.38]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 55BBF939C4; Tue, 31 May 2022 02:39:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1653989987; x=1685525987; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=xuE+EOXtoSZoSNiHuI6FbStm42p6YQHT6ek5Zy/gVNQ=; b=fL2KqCPQVRFbHAw/Trgy9/XgYdahL8vOKPBgo+1zN/nWuAT7EuQ/PkEM zrftVmIdIuqmUZYEwvm8bezNGkXvvMDRt4DUXPYwSM5YpZNUMJqfHzB+1 e3h5TsMH8qo57uACAXqYmSva+6HOr6y4UVHrV2Dh1EX3w47XuJxMmELLd 4=; Received: from unknown (HELO ironmsg02-sd.qualcomm.com) ([10.53.140.142]) by alexa-out-sd-01.qualcomm.com with ESMTP; 31 May 2022 02:39:47 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg02-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 May 2022 02:39:46 -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, 31 May 2022 02:39:46 -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, 31 May 2022 02:39:43 -0700 From: Yogesh Lal To: , CC: , , , Siddharth Gupta , Yogesh Lal Subject: [V3 2/2] remoteproc: qcom: Add full coredump fallback mechanism Date: Tue, 31 May 2022 15:09:29 +0530 Message-ID: <1653989969-26500-3-git-send-email-quic_ylal@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1653989969-26500-1-git-send-email-quic_ylal@quicinc.com> References: <1653989969-26500-1-git-send-email-quic_ylal@quicinc.com> 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) Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@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 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,