From patchwork Mon Oct 5 05:59:54 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maulik Shah X-Patchwork-Id: 267929 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=-6.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, 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 551B4C46466 for ; Mon, 5 Oct 2020 06:00:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 16C5820796 for ; Mon, 5 Oct 2020 06:00:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="vKU8kyxZ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725267AbgJEGAR (ORCPT ); Mon, 5 Oct 2020 02:00:17 -0400 Received: from z5.mailgun.us ([104.130.96.5]:50661 "EHLO z5.mailgun.us" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725857AbgJEGAR (ORCPT ); Mon, 5 Oct 2020 02:00:17 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1601877616; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=Oa4rcp5GyyYJq9IK15uU2n71807vbQ1AzSTvMI/GC18=; b=vKU8kyxZ8ip0dfb2HsVesg6X+a86rwhyRzh975zIuP9GKXTI/0uybG+ryip1Ifkj3k4fYDQe SJPLrfrb8pftUEnqxSZ4sLh+nyfev6ACeh7e+1AjybrUWVTsOZimLl8dWBv0mmGIwO4qda+O jlGXYAf7UwZlyOSGqtG1Z07iDXw= X-Mailgun-Sending-Ip: 104.130.96.5 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n06.prod.us-west-2.postgun.com with SMTP id 5f7ab66f06d81bc48dc52f40 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Mon, 05 Oct 2020 06:00:15 GMT Sender: mkshah=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 7E116C433FF; Mon, 5 Oct 2020 06:00:15 +0000 (UTC) Received: from mkshah-linux.qualcomm.com (unknown [202.46.22.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: mkshah) by smtp.codeaurora.org (Postfix) with ESMTPSA id BBBD0C433C8; Mon, 5 Oct 2020 06:00:11 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org BBBD0C433C8 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=mkshah@codeaurora.org From: Maulik Shah To: agross@kernel.org, bjorn.andersson@linaro.org Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, ulf.hansson@linaro.org, swboyd@chromium.org, dianders@chromium.org, rnayak@codeaurora.org, ilina@codeaurora.org, lsrao@codeaurora.org, Maulik Shah Subject: [RESEND v2 0/2] Modularize RPMH driver Date: Mon, 5 Oct 2020 11:29:54 +0530 Message-Id: <1601877596-32676-1-git-send-email-mkshah@codeaurora.org> X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Resending the patches rebasing on top of latest linux-next (next-20201002) Changes in v2: - Update commit message in patch 1 - send [4] again instead of revert's revert in patch 2. This series is to modularize RPMH driver The tracepoint in RPMH driver was changed to _rcuidle variant based on the test results of unmerged series [1] where .power_off callback from genpd reported RCU warnings. The series which finally got merged [2] uses CPU PM notifications and genpd .power_off callback is not implemented in RPMH driver to invoke rpmh_flush(). The CPU PM notifications are done with RCU non idle in kernel (see cpu_pm_notify() uses rcu_irq_enter_irqson() before notifications) However using _rcuidle variant prevented RPMH driver to compile as module since these _rcuidle are not exported symbols for tracepoints. This seris reverts the change [3] to remove _rcuidle variant for tracepoint as its no more valid test case (genpd .power_off is not implemented) and bring backs the change [4] that was reverted due to _rcuidle preventing to become modular. [1] https://patchwork.kernel.org/project/linux-arm-msm/list/?series=243931 [2] https://patchwork.kernel.org/project/linux-arm-msm/list/?series=269733 [3] https://lore.kernel.org/r/20200115013751.249588-1-swboyd@chromium.org [4] https://lore.kernel.org/r/20200326224459.105170-3-john.stultz@linaro.org John Stultz (1): soc: qcom: rpmh: Allow RPMH driver to be loaded as a module Maulik Shah (1): Revert "drivers: qcom: rpmh-rsc: Use rcuidle tracepoints for rpmh" drivers/soc/qcom/Kconfig | 2 +- drivers/soc/qcom/rpmh-rsc.c | 7 ++++++- 2 files changed, 7 insertions(+), 2 deletions(-)