From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6D402C433E2 for ; Thu, 17 Sep 2020 18:57:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1D7842072E for ; Thu, 17 Sep 2020 18:57:26 +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="GDFiJTEZ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726390AbgIQS5Y (ORCPT ); Thu, 17 Sep 2020 14:57:24 -0400 Received: from mail29.static.mailgun.info ([104.130.122.29]:27535 "EHLO mail29.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726440AbgIQS47 (ORCPT ); Thu, 17 Sep 2020 14:56:59 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1600369017; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=DMvIzCf6NdTGdG0zhswNitJ30ULOFunnzOgL2Jm0pTI=; b=GDFiJTEZxhSdaqJfO3rZ9zheuwC2+Kiy6KZmNmJp3f/1yg7u7CarBi+WhYLR8fyQDUtDbTMd O8ZsUxBr3mxCU08BULQbSC/TKzx3eGbsy/HyY9KSbNyvrGESifGPSJsueF8veA88HTziUz7Z 84BirLwcwODRRbKI5YWMvNHEf5w= X-Mailgun-Sending-Ip: 104.130.122.29 X-Mailgun-Sid: WyI0MWYwYSIsICJsaW51eC1rZXJuZWxAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n05.prod.us-east-1.postgun.com with SMTP id 5f63b174ae7ca421d25134ae (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Thu, 17 Sep 2020 18:56:52 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id ECFDCC43382; Thu, 17 Sep 2020 18:56:51 +0000 (UTC) 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 E7A2EC433F0; Thu, 17 Sep 2020 18:56:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org E7A2EC433F0 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=fail smtp.mailfrom=rishabhb@codeaurora.org From: Rishabh Bhatnagar To: bjorn.andersson@linaro.org, ohad@wizery.com Cc: linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, tsoni@codeaurora.org, psodagud@codeaurora.org, sidgup@codeaurora.org, Rishabh Bhatnagar Subject: [PATCH v4 0/3] Move recovery/coredump configuration to sysfs Date: Thu, 17 Sep 2020 11:56:37 -0700 Message-Id: <1600368999-9461-1-git-send-email-rishabhb@codeaurora.org> X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >From Android R onwards Google has restricted access to debugfs in user and user-debug builds. This restricts access to most of the features exposed through debugfs. This patch series removes the recovery/coredump entries from debugfs and moves them to sysfs. 'Coredump' and 'Recovery' are critical interfaces that are required for remoteproc to work on Qualcomm Chipsets. Coredump configuration needs to be set to "inline" in debug/test build and "disabled" in production builds. Whereas recovery needs to be "disabled" for debugging purposes and "enabled" on production builds. Changelog: v4 -> v3: - Remove the feature flag to expose recovery/coredump v3 -> v2: - Remove the coredump/recovery entries from debugfs - Expose recovery/coredump from sysfs under a feature flag v1 -> v2: - Correct the contact name in the sysfs documentation. - Remove the redundant write documentation for coredump/recovery sysfs - Add a feature flag to make this interface switch configurable. Rishabh Bhatnagar (3): remoteproc: Expose remoteproc configuration through sysfs remoteproc: Add coredump configuration to sysfs remoteproc: Add recovery configuration to sysfs Documentation/ABI/testing/sysfs-class-remoteproc | 44 ++++++++ drivers/remoteproc/Kconfig | 12 +++ drivers/remoteproc/remoteproc_debugfs.c | 10 +- drivers/remoteproc/remoteproc_sysfs.c | 126 +++++++++++++++++++++++ 4 files changed, 190 insertions(+), 2 deletions(-) -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project