From patchwork Thu Mar 5 17:06:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maulik Shah X-Patchwork-Id: 11422377 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 4882F924 for ; Thu, 5 Mar 2020 17:07:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 282A120870 for ; Thu, 5 Mar 2020 17:07:17 +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="DR4RFz/A" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726141AbgCERHQ (ORCPT ); Thu, 5 Mar 2020 12:07:16 -0500 Received: from mail27.static.mailgun.info ([104.130.122.27]:10965 "EHLO mail27.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725963AbgCERHP (ORCPT ); Thu, 5 Mar 2020 12:07:15 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1583428035; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=4BQCqiSyVLAnY7G9z7oQROVsitnkw15NXXmoIHztfNA=; b=DR4RFz/AiLDTGW/e2ZlpqL+ma0MObjroqU0LiSK7v4+5JxIh/KQxO1igCovmLFAR5peOMUn7 3dCVVDYpvTOzZTq+RarYCUcea3NSLvGyyKflqG8PtX84wYDaOqcf56pTvWm6fy+kHF3M7qQA fGsdbi8sASosJL+b/V6+OAAntRk= X-Mailgun-Sending-Ip: 104.130.122.27 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 mxa.mailgun.org with ESMTP id 5e6131c1.7fb0826e8ca8-smtp-out-n01; Thu, 05 Mar 2020 17:07:13 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 39390C4479C; Thu, 5 Mar 2020 17:07:13 +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 (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: mkshah) by smtp.codeaurora.org (Postfix) with ESMTPSA id 01BE7C433A2; Thu, 5 Mar 2020 17:07:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 01BE7C433A2 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: swboyd@chromium.org, mka@chromium.org, evgreen@chromium.org, bjorn.andersson@linaro.org Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, agross@kernel.org, dianders@chromium.org, rnayak@codeaurora.org, ilina@codeaurora.org, lsrao@codeaurora.org, Maulik Shah Subject: [PATCH v12 0/4] Invoke rpmh_flush for non OSI targets Date: Thu, 5 Mar 2020 22:36:59 +0530 Message-Id: <1583428023-19559-1-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 v12: - Kconfig change to remove COMPILE_TEST was dropped in v11, reinclude it. Changes in v11: - Address Doug's comments on change 2 and 3 - Include change to invalidate TCSes before flush from [4] Changes in v10: - Address Evan's comments to update commit message on change 2 - Add Evan's Reviewed by on change 2 - Remove comment from rpmh_flush() related to last CPU invoking it - Rebase all changes on top of next-20200302 Changes in v9: - Keep rpmh_flush() to invoke from within cache_lock - Remove comments related to only last cpu invoking rpmh_flush() Changes in v8: - Address Stephen's comments on changes 2 and 3 - Add Reviewed by from Stephen on change 1 Changes in v7: - Address Srinivas's comments to update commit text - Add Reviewed by from Srinivas Changes in v6: - Drop 1 & 2 changes from v5 as they already landed in maintainer tree - Drop 3 & 4 changes from v5 as no user at present for power domain in rsc - Rename subject to appropriate since power domain changes are dropped - Rebase other changes on top of next-20200221 Changes in v5: - Add Rob's Acked by on dt-bindings change - Drop firmware psci change - Update cpuidle stats in dtsi to follow PC mode - Include change to update dirty flag when data is updated from [4] - Add change to invoke rpmh_flush when caches are dirty Changes in v4: - Add change to allow hierarchical topology in PC mode - Drop hierarchical domain idle states converter from v3 - Address Merge sc7180 dtsi change to add low power modes Changes in v3: - Address Rob's comment on dt property value - Address Stephen's comments on rpmh-rsc driver change - Include sc7180 cpuidle low power mode changes from [1] - Include hierarchical domain idle states converter change from [2] Changes in v2: - Add Stephen's Reviewed-By to the first three patches - Addressed Stephen's comments on fourth patch - Include changes to connect rpmh domain to cpuidle and genpds Resource State Coordinator (RSC) is responsible for powering off/lowering the requirements from CPU subsystem for the associated hardware like buses, clocks, and regulators when all CPUs and cluster is powered down. RSC power domain uses last-man activities provided by genpd framework based on Ulf Hansoon's patch series[3], when the cluster of CPUs enter deepest idle states. As a part of domain poweroff, RSC can lower resource state requirements by flushing the cached sleep and wake state votes for various resources. [1] https://patchwork.kernel.org/patch/11218965 [2] https://patchwork.kernel.org/patch/10941671 [3] https://patchwork.kernel.org/project/linux-arm-msm/list/?series=222355 [4] https://patchwork.kernel.org/project/linux-arm-msm/list/?series=236503 Maulik Shah (3): arm64: dts: qcom: sc7180: Add cpuidle low power states soc: qcom: rpmh: Update dirty flag only when data changes soc: qcom: rpmh: Invoke rpmh_flush for dirty caches arch/arm64/boot/dts/qcom/sc7180.dtsi | 78 ++++++++++++++++++++++++++++++++++++ drivers/soc/qcom/rpmh.c | 27 ++++++++++--- 2 files changed, 100 insertions(+), 5 deletions(-)