From patchwork Wed Feb 19 10:40:03 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maulik Shah X-Patchwork-Id: 11391221 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 4B08F92A for ; Wed, 19 Feb 2020 10:40:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2BA7A21D56 for ; Wed, 19 Feb 2020 10:40:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="XvXz+wAF" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726497AbgBSKk3 (ORCPT ); Wed, 19 Feb 2020 05:40:29 -0500 Received: from mail26.static.mailgun.info ([104.130.122.26]:51271 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726270AbgBSKk3 (ORCPT ); Wed, 19 Feb 2020 05:40:29 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1582108828; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=Yh387kKXHacTs+of14jK5UgoLbmjSoxNzBRJ83+pSig=; b=XvXz+wAFB9Enz2WdyjT7GzwqK2pWqxwB0Ert1TD9zK+uTr3Og2DEQ9PXHQ9kOPpZvq2ojHxP hT+FUYaSVl/VUVxyvcO6Faw/p7nUqv1ljX5bQGWyQcPEn+FjIdEXS8KlGln/psH20hBDAGjh bAlImqarRqJWYv03RregVJ56kRc= X-Mailgun-Sending-Ip: 104.130.122.26 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 5e4d109b.7fb06f19e030-smtp-out-n01; Wed, 19 Feb 2020 10:40:27 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id A4706C433A2; Wed, 19 Feb 2020 10:40:27 +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=ham 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 86A37C43383; Wed, 19 Feb 2020 10:40:23 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 86A37C43383 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 v5 0/7] Add RSC power domain support Date: Wed, 19 Feb 2020 16:10:03 +0530 Message-Id: <1582108810-21263-1-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 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 (7): drivers: qcom: rpmh: fix macro to accept NULL argument drivers: qcom: rpmh: remove rpmh_flush export dt-bindings: soc: qcom: Add RSC power domain specifier drivers: qcom: rpmh-rsc: Add RSC power domain support 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 .../devicetree/bindings/soc/qcom/rpmh-rsc.txt | 9 +++ arch/arm64/boot/dts/qcom/sc7180.dtsi | 78 +++++++++++++++++++++ drivers/soc/qcom/rpmh-internal.h | 3 + drivers/soc/qcom/rpmh-rsc.c | 81 ++++++++++++++++++++++ drivers/soc/qcom/rpmh.c | 49 ++++++++----- include/soc/qcom/rpmh.h | 5 -- 6 files changed, 203 insertions(+), 22 deletions(-)