From patchwork Tue Aug 25 11:21:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maulik Shah X-Patchwork-Id: 11735553 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 448A4913 for ; Tue, 25 Aug 2020 11:22:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2538B2075B for ; Tue, 25 Aug 2020 11:22:34 +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="DUOyvvMZ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729953AbgHYLW2 (ORCPT ); Tue, 25 Aug 2020 07:22:28 -0400 Received: from m43-7.mailgun.net ([69.72.43.7]:17655 "EHLO m43-7.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729987AbgHYLWK (ORCPT ); Tue, 25 Aug 2020 07:22:10 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1598354528; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=tSSVfiXd88xOCldtXCPlDzzLEK3G+8ztMfhhhwwpA+c=; b=DUOyvvMZu0t3KWvLSGxe1P8pb13Hjb/0f5Wd58+KoM7MChxKJrt6ivtJE8VUypr/LsHuFPUe CpQoCxrgROChnDxN4WtEvAB8DQlZnz5MDilJRf+Wp2ISu0hDao9fVsW3aXSpVDv+PHYp5lbX X3LG8HztMYb7B4b7l3kHu3fvicE= X-Mailgun-Sending-Ip: 69.72.43.7 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-n03.prod.us-west-2.postgun.com with SMTP id 5f44f445e2d4d29fc8378e17 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Tue, 25 Aug 2020 11:21:41 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 6F609C433CA; Tue, 25 Aug 2020 11:21:41 +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 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 C463BC433C6; Tue, 25 Aug 2020 11:21:37 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org C463BC433C6 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=mkshah@codeaurora.org From: Maulik Shah To: bjorn.andersson@linaro.org, andy.gross@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: [PATCH v2 0/2] Modularize RPMH driver Date: Tue, 25 Aug 2020 16:51:20 +0530 Message-Id: <1598354482-15491-1-git-send-email-mkshah@codeaurora.org> X-Mailer: git-send-email 2.7.4 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org 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(-)