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=-2.3 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, FROM_LOCAL_NOVOWEL,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 C5E6CC43381 for ; Thu, 21 Feb 2019 12:18:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 930A92086C for ; Thu, 21 Feb 2019 12:18:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="CDRX1uSf"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="jAfhoU6z" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727464AbfBUMSk (ORCPT ); Thu, 21 Feb 2019 07:18:40 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:48820 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725858AbfBUMSj (ORCPT ); Thu, 21 Feb 2019 07:18:39 -0500 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 8E9DB604A6; Thu, 21 Feb 2019 12:18:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1550751517; bh=NPiqqxNGjJW2ZcjWQQHEoe1l5fMW+ee0OtzFav+KfFU=; h=From:To:Cc:Subject:Date:From; b=CDRX1uSf3PLV99OaI2Hvd6e5BCWfhe+iZNiXPXwDMcdUdOsv28PjCFla1Pyn3qFN2 dtd/KJtu7frNYw7Li6sOfiTryx7tJhHcg5Is57MIw5i8sKnQqwNPpmj1d2t+qJhRvc cADnhlZwPbOaxXRKGc7Hpmw9tuT/Nl6PPbCNS65Y= Received: from rplsssn-linux.qualcomm.com (blr-c-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: rplsssn@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 6DE4C604A6; Thu, 21 Feb 2019 12:18:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1550751515; bh=NPiqqxNGjJW2ZcjWQQHEoe1l5fMW+ee0OtzFav+KfFU=; h=From:To:Cc:Subject:Date:From; b=jAfhoU6z4//Dd06ItW+lc98G9VEO7Zlz82KlGh5yA3vVuNs9bQtOqsxkbd9+0bfHY dQcFSHjkG+n/2AwZQsrz8dBn9HIsQmFu51cJt1R1hyBAXdMgXVF+o4wRpoKAzZaJfh tS1T3HD7ViFqsRW82kYoWJSEbPNxMB4waVN831SQ= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 6DE4C604A6 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=rplsssn@codeaurora.org From: "Raju P.L.S.S.S.N" To: andy.gross@linaro.org, david.brown@linaro.org, linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org Cc: rnayak@codeaurora.org, bjorn.andersson@linaro.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, sboyd@kernel.org, evgreen@chromium.org, dianders@chromium.org, mka@chromium.org, ilina@codeaurora.org, "Raju P.L.S.S.S.N" Subject: [PATCH RESEND v3 0/3] add some more functionality to RPMH Date: Thu, 21 Feb 2019 17:48:24 +0530 Message-Id: <20190221121827.32427-1-rplsssn@codeaurora.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Resending the patches. Kindly review. Changes in v3: - Simplify TCS locking - added a new patch - Add lock check to avoid potential race as suggested by Matthias - Add functionality to RSC controller to disallow active requests if solver mode is not set - Removed independent patches and posted as separate series[2] Changes in v2: - Remove unnecessary EXPORT_SYMBOL in rpmh-rsc This set of patches add additional functionality to RPMH drivers[1]. PM drivers can choose to disallow idle modes when RSC controller is busy sending or processing requests. The patches add necessary functions to query the controller status. The controllers may be in 'solver' state, where they could be in autonomous mode executing low power modes for their hardware and as such are not available for sending active votes. Functionality to get notified about such state and disallow requests for state change in that case is added in these patches. Please consider reviewing this patchset. This series is based on other patchset[2] v1:https://lkml.org/lkml/2018/7/19/213 v2:https://patchwork.kernel.org/cover/10546863/ [1] https://lkml.org/lkml/2018/6/20/519 [2] https://lkml.org/lkml/2019/2/18/714 Lina Iyer (2): drivers: qcom: rpmh-rsc: return if the controller is idle drivers: qcom: rpmh: disallow active requests in solver mode Raju P.L.S.S.S.N (1): drivers: qcom: rpmh-rsc: simplify TCS locking drivers/soc/qcom/rpmh-internal.h | 8 ++- drivers/soc/qcom/rpmh-rsc.c | 91 +++++++++++++++++++++++--------- drivers/soc/qcom/rpmh.c | 84 ++++++++++++++++++++++++----- include/soc/qcom/rpmh.h | 10 ++++ 4 files changed, 155 insertions(+), 38 deletions(-) -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation.