From patchwork Tue Jul 5 10:14:16 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yogesh Lal X-Patchwork-Id: 12906299 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 3A54ACCA47B for ; Tue, 5 Jul 2022 10:14:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231842AbiGEKOn (ORCPT ); Tue, 5 Jul 2022 06:14:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37748 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231749AbiGEKOk (ORCPT ); Tue, 5 Jul 2022 06:14:40 -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 65C4413FB1; Tue, 5 Jul 2022 03:14:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1657016079; x=1688552079; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=gllH0aEkX5B09LPTq/7Fsl3vWxRNPqwFwTpnT+gBDb4=; b=TudCfp7PIiFT2prQjl3KYfRwScYc2H0LlzSufgQ27maTYr8nirXgiz2r 3MV/B8dbER4gGtWvLkkVYif3gOzyIWLFbVIuHI5ZeS5EgCBAfdDX6Ikpa mN6cGb1gesGIUxRAhp1SobmxuvWj0a79hxG6qOTRdAFSgA997BkYQwdWu s=; Received: from unknown (HELO ironmsg-SD-alpha.qualcomm.com) ([10.53.140.30]) by alexa-out-sd-01.qualcomm.com with ESMTP; 05 Jul 2022 03:14:39 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg-SD-alpha.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Jul 2022 03:14:39 -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 03:14:38 -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 03:14:36 -0700 From: Yogesh Lal To: , CC: , , , Siddharth Gupta , Yogesh Lal Subject: [RESEND V3 1/2] remoteproc: core: Export the rproc coredump APIs Date: Tue, 5 Jul 2022 15:44:16 +0530 Message-ID: <1657016057-22806-2-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 The remoteproc coredump APIs are currently only part of the internal remoteproc header. This prevents the remoteproc platform drivers from using these APIs when needed. This change moves the rproc_coredump() and rproc_coredump_cleanup() APIs to the linux header and marks them as exported symbols. Signed-off-by: Siddharth Gupta Reviewed-by: Sibi Sankar Signed-off-by: Yogesh Lal --- drivers/remoteproc/remoteproc_coredump.c | 2 ++ drivers/remoteproc/remoteproc_internal.h | 4 ---- include/linux/remoteproc.h | 4 ++++ 3 files changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/remoteproc/remoteproc_coredump.c b/drivers/remoteproc/remoteproc_coredump.c index aee657c..aa45b68 100644 --- a/drivers/remoteproc/remoteproc_coredump.c +++ b/drivers/remoteproc/remoteproc_coredump.c @@ -32,6 +32,7 @@ void rproc_coredump_cleanup(struct rproc *rproc) kfree(entry); } } +EXPORT_SYMBOL(rproc_coredump_cleanup); /** * rproc_coredump_add_segment() - add segment of device memory to coredump @@ -327,6 +328,7 @@ void rproc_coredump(struct rproc *rproc) */ wait_for_completion(&dump_state.dump_done); } +EXPORT_SYMBOL(rproc_coredump); /** * rproc_coredump_using_sections() - perform coredump using section headers diff --git a/drivers/remoteproc/remoteproc_internal.h b/drivers/remoteproc/remoteproc_internal.h index a328e63..a492a41 100644 --- a/drivers/remoteproc/remoteproc_internal.h +++ b/drivers/remoteproc/remoteproc_internal.h @@ -49,10 +49,6 @@ extern struct class rproc_class; int rproc_init_sysfs(void); void rproc_exit_sysfs(void); -/* from remoteproc_coredump.c */ -void rproc_coredump_cleanup(struct rproc *rproc); -void rproc_coredump(struct rproc *rproc); - #ifdef CONFIG_REMOTEPROC_CDEV void rproc_init_cdev(void); void rproc_exit_cdev(void); diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h index 83c09ac..b8c8c3a 100644 --- a/include/linux/remoteproc.h +++ b/include/linux/remoteproc.h @@ -673,6 +673,10 @@ void rproc_shutdown(struct rproc *rproc); int rproc_detach(struct rproc *rproc); int rproc_set_firmware(struct rproc *rproc, const char *fw_name); void rproc_report_crash(struct rproc *rproc, enum rproc_crash_type type); + +/* from remoteproc_coredump.c */ +void rproc_coredump_cleanup(struct rproc *rproc); +void rproc_coredump(struct rproc *rproc); void rproc_coredump_using_sections(struct rproc *rproc); int rproc_coredump_add_segment(struct rproc *rproc, dma_addr_t da, size_t size); int rproc_coredump_add_custom_segment(struct rproc *rproc, 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; 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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,