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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F41F8C433EF for ; Tue, 5 Oct 2021 09:11:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D3BD66126A for ; Tue, 5 Oct 2021 09:11:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233557AbhJEJNJ (ORCPT ); Tue, 5 Oct 2021 05:13:09 -0400 Received: from so254-9.mailgun.net ([198.61.254.9]:15323 "EHLO so254-9.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233383AbhJEJNI (ORCPT ); Tue, 5 Oct 2021 05:13:08 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1633425078; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=aRvgaNx0Q2m/rj6+LqOIZLwyDjVr8yfgZ0pw3tHTXZw=; b=bxIBSnn6jXMZuwnYz+yy12BRuiv57wHK6jnW+V1bBxgcsvzjA68IYAdMcTanHy73fe1xsEPJ KfuZtW/tUtNT99mZIDiI0Cr4/X6TzhWCg1RFEAycAnsHEiFmooguvaheG0oTASkXZxiOiAAI +8zB4xlorA3IczqLT/pWdgnxbxU= X-Mailgun-Sending-Ip: 198.61.254.9 X-Mailgun-Sid: WyI0MWYwYSIsICJsaW51eC1rZXJuZWxAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n07.prod.us-west-2.postgun.com with SMTP id 615c16b5fc6e34f8cd822246 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Tue, 05 Oct 2021 09:11:17 GMT Sender: mkshah=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 46FE2C43617; Tue, 5 Oct 2021 09:11:17 +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 A50B2C4338F; Tue, 5 Oct 2021 09:11:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 smtp.codeaurora.org A50B2C4338F 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=codeaurora.org From: Maulik Shah To: swboyd@chromium.org, mka@chromium.org, evgreen@chromium.org, bjorn.andersson@linaro.org Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, agross@kernel.org, dianders@chromium.org, linux@roeck-us.net, rnayak@codeaurora.org, lsrao@codeaurora.org, Maulik Shah Subject: [PATCH v10 0/5] Introduce SoC sleep stats driver Date: Tue, 5 Oct 2021 14:41:00 +0530 Message-Id: <1633425065-7927-1-git-send-email-mkshah@codeaurora.org> X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Changes in v9: - Updated device node name to use memory instead of aop_msgram - Remove Lina's email from maintainers - Rename driver to qcom_sleep_stats. Update makefile, Kconfig accordingly - Address Bjorn's comments from v9 Changes in v9: - Remove soft dependency on smem module - Return -EIO to userspace in case of error - Make struct sleep_stats *stat a const pointer - Remove the driver from soc_sleep_stats_driver name - Remove offset address and directly mention the msgram address in dtsi - Use devm_platform_get_and_ioremap_resource() to ioremap dtsi address - Update device node name to mention aop_msgram instead rpmh-sleep-stats - Update dtsi and documentation accordingly but retain the reviews Changes in v8: - Addressed bjorn's comments in driver from v7 - Update aoss_qmp device node reg size for sc7280 Changes in v7: - Fix example in bindings documentation as per #address/size-cells = <1>. - Add comment in driver from where 'ddr' subsystems name is read. - Update comment in driver to s/beside/besides and others from v6. - Rename debugfs_create_entries() from v6. - Drop use of memcpy_fromio() to find the name. - Use sizeof(*prv_data) in devm_kzalloc(). - Add change to define readq() if its not yet defined for compile support. - Add wpss subsystem in the list of subsystems. - Add module soft dependency on smem module. - Add new change to add device node for sc7280. Changes in v6: - Address stephen's comments from v5 which includes below - Pad 0 in documentation example to make address 8 digit - define macro to calculate offset in driver - Add appended_stats_avail to prv_data instead of using entire stats_config - make array subsystems[] as const - Add comment for SSR case - Use memcpy_fromio() and devm_kcalloc() during probe - Change file permission mode from 444 to 400 - Address guenter's comments to add depends on QCOM_SMEM - Add adsp_island and cdsp_island subsystems - Use strim() to remove whitespace in stat name Changes in v5: - Remove underscore from node name in Documentation and DTSI change - Remove global config from driver change Changes in v4: - Address bjorn's comments from v3 on change 2. - Add bjorn's Reviewed-by on change 3 and 4. Changes in v3: - Address stephen's comments from v2 in change 1 and 2. - Address bjorn's comments from v2 in change 3 and 4. - Add Rob and bjorn's Reviewed-by on YAML change. Changes in v2: - Convert Documentation to YAML. - Address stephen's comments from v1. - Use debugfs instead of sysfs. - Add sc7180 dts changes for sleep stats - Add defconfig changes to enable driver - Include subsystem stats from [1] in this single stats driver. - Address stephen's comments from [1] - Update cover letter inline to mention [1] Qualcomm Technologies, Inc. (QTI)'s chipsets support SoC level low power modes. SoCs Always On Processor/Resource Power Manager produces statistics of the SoC sleep modes involving lowering or powering down of the rails and the oscillator clock. Additionally multiple subsystems present on SoC like modem, spss, adsp, cdsp maintains their low power mode statistics in shared memory (SMEM). Statistics includes SoC sleep mode type, number of times LPM entered, time of last entry, exit, and accumulated sleep duration in seconds. This series adds a driver to read the stats and export to debugfs. [1] https://lore.kernel.org/patchwork/patch/1149381/ Mahesh Sivasubramanian (2): dt-bindings: Introduce SoC sleep stats bindings soc: qcom: Add SoC sleep stats driver Maulik Shah (3): arm64: dts: qcom: sc7180: Enable SoC sleep stats arm64: defconfig: Enable SoC sleep stats driver arm64: dts: qcom: sc7280: Enable SoC sleep stats .../bindings/soc/qcom/soc-sleep-stats.yaml | 47 ++++ arch/arm64/boot/dts/qcom/sc7180.dtsi | 7 +- arch/arm64/boot/dts/qcom/sc7280.dtsi | 7 +- arch/arm64/configs/defconfig | 1 + drivers/soc/qcom/Kconfig | 10 + drivers/soc/qcom/Makefile | 1 + drivers/soc/qcom/qcom_sleep_stats.c | 240 +++++++++++++++++++++ 7 files changed, 311 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/soc/qcom/soc-sleep-stats.yaml create mode 100644 drivers/soc/qcom/qcom_sleep_stats.c -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation