From patchwork Wed May 27 20:26:14 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rishabh Bhatnagar X-Patchwork-Id: 11573923 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 BECBD913 for ; Wed, 27 May 2020 20:26:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A6E53207BC for ; Wed, 27 May 2020 20:26:59 +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="I+/5fwLP" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728707AbgE0U07 (ORCPT ); Wed, 27 May 2020 16:26:59 -0400 Received: from m43-7.mailgun.net ([69.72.43.7]:50930 "EHLO m43-7.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727997AbgE0U07 (ORCPT ); Wed, 27 May 2020 16:26:59 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1590611218; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=lDvp9mtb1BNZtF00ZqLwVSC6bknYfvTg0uIyQBTnJ20=; b=I+/5fwLPYGtg72c7RbtWjWCAU0tbEvOvqrqSKrDrB5uIrBhVXydpK1ijcRRslcC6cLC4e/Za tXz7tu8N59b5WRujBxe7eBhHp0/CKGYD3O8y86bJ58t9cVWpt8xPBkJNZdFVjsJEpPZDrZec yaDFY11Jf3s6PJ5GO61iF2r2obg= X-Mailgun-Sending-Ip: 69.72.43.7 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-n01.prod.us-east-1.postgun.com with SMTP id 5ececd00ea0dfa490e06c969 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Wed, 27 May 2020 20:26:40 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id A5940C433CB; Wed, 27 May 2020 20:26:39 +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 85C51C433C6; Wed, 27 May 2020 20:26:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 85C51C433C6 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, tsoni@codeaurora.org, psodagud@codeaurora.org, sidgup@codeaurora.org, mathieu.poirier@linaro.org, Rishabh Bhatnagar Subject: [v4 PATCH 0/3] Extend coredump functionality Date: Wed, 27 May 2020 13:26:14 -0700 Message-Id: <1590611177-15826-1-git-send-email-rishabhb@codeaurora.org> X-Mailer: git-send-email 1.9.1 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: 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