From patchwork Wed Jun 24 01:24:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rishabh Bhatnagar X-Patchwork-Id: 11622169 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A3DC81392 for ; Wed, 24 Jun 2020 01:24:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8B75D2100A for ; Wed, 24 Jun 2020 01:24:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="sB9c/+oZ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388126AbgFXBYq (ORCPT ); Tue, 23 Jun 2020 21:24:46 -0400 Received: from mail29.static.mailgun.info ([104.130.122.29]:45620 "EHLO mail29.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387916AbgFXBYp (ORCPT ); Tue, 23 Jun 2020 21:24:45 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1592961884; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=JJjGrFrEG/JFEkkCPMYT2rqeOIB/OZvmMXY1uqNm79Q=; b=sB9c/+oZoxn/USYKuxO2+0C1tPfaYfUvfM1c43ZXwtym0QZTjYBz5jiV1NqxhSRIV4jghyUh iRHnK17anLT+LRaV9hGt/NCFvBKg7SZ4TSMp6vRRpxCWId/vICEKGsgZNm/xK7U5ouTso6/b DAhMoy30RRZ12aZUhnwvE8p0zyM= X-Mailgun-Sending-Ip: 104.130.122.29 X-Mailgun-Sid: WyI4ZWZiZiIsICJsaW51eC1yZW1vdGVwcm9jQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n08.prod.us-east-1.postgun.com with SMTP id 5ef2ab5c356bcc26ab4f1efc (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Wed, 24 Jun 2020 01:24:44 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 8CA62C433CA; Wed, 24 Jun 2020 01:24:43 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-caf-mail-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.0 tests=ALL_TRUSTED,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.0 Received: from rishabhb-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: rishabhb) by smtp.codeaurora.org (Postfix) with ESMTPSA id C44DAC433C8; Wed, 24 Jun 2020 01:24:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org C44DAC433C8 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=rishabhb@codeaurora.org From: Rishabh Bhatnagar To: linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org Cc: bjorn.andersson@linaro.org, mathieu.poirier@linaro.org, tsoni@codeaurora.org, psodagud@codeaurora.org, sidgup@codeaurora.org, Rishabh Bhatnagar Subject: [PATCH v5 0/3] Extend coredump functionality Date: Tue, 23 Jun 2020 18:24:11 -0700 Message-Id: <1592961854-634-1-git-send-email-rishabhb@codeaurora.org> X-Mailer: git-send-email 2.7.4 Sender: linux-remoteproc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@vger.kernel.org This patch series moves the coredump functionality to a separate file and adds "inline" coredump feature. Inline coredump directly copies segments from device memory during coredump to userspace. This avoids extra memory usage at the cost of speed. Recovery is stalled until all data is read by userspace. Changelog: v5 -> v4: - Rebase on top of linux-next v4 -> v3: - Write a helper function to copy segment memory for every dump format - Change segment dump fn to add offset and size adn covert mss driver v3 -> v2: - Move entire coredump functionality to remoteproc_coredump.c - Modify rproc_coredump to perform dump according to conf. set by userspace - Move the userspace configuration to debugfs from sysfs. - Keep the default coredump implementation as is v2 -> v1: - Introduce new file for coredump. - Add userspace sysfs configuration for dump type. Rishabh Bhatnagar (3): remoteproc: Move coredump functionality to a new file remoteproc: Add inline coredump functionality remoteproc: Add coredump debugfs entry drivers/remoteproc/Makefile | 1 + drivers/remoteproc/qcom_q6v5_mss.c | 9 +- drivers/remoteproc/remoteproc_core.c | 191 ------------------ drivers/remoteproc/remoteproc_coredump.c | 328 +++++++++++++++++++++++++++++++ drivers/remoteproc/remoteproc_debugfs.c | 86 ++++++++ drivers/remoteproc/remoteproc_internal.h | 4 + include/linux/remoteproc.h | 21 +- 7 files changed, 443 insertions(+), 197 deletions(-) create mode 100644 drivers/remoteproc/remoteproc_coredump.c