From patchwork Thu Jun 24 11:58:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thara Gopinath X-Patchwork-Id: 466476 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=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 E61B3C49EAB for ; Thu, 24 Jun 2021 11:58:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CB29B613C5 for ; Thu, 24 Jun 2021 11:58:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230299AbhFXMAg (ORCPT ); Thu, 24 Jun 2021 08:00:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37728 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230263AbhFXMAg (ORCPT ); Thu, 24 Jun 2021 08:00:36 -0400 Received: from mail-qt1-x831.google.com (mail-qt1-x831.google.com [IPv6:2607:f8b0:4864:20::831]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CCAB3C061760 for ; Thu, 24 Jun 2021 04:58:16 -0700 (PDT) Received: by mail-qt1-x831.google.com with SMTP id e3so4593717qte.0 for ; Thu, 24 Jun 2021 04:58:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=eijKYTcdSgjUORNbFd3aQ96Ibey7LIG8Pwg8gaFrgAg=; b=JgMRZ1otbqrdr8v6RfG1O5qyiq+sc/UK6pR7wktlQI21P6U9Ot2ebbXpqyOfCswpXD vHnOrJq457FEZWbAPtRUd+0QxMYhptRZiNfxVN6WduYqUiNkjrraOj8V/VODKYnMfx7x UfS82fN7N2sE+mFkuiJQwL75JYtbA6JksESv3uMIQjW7zSgfAUKNwkGaoESy2x9yuu8N nLu0sXn9yBfr3QdST/FrJeuxBaM8SYzPjuFi7DgFg6dlsuBDJdPJgBlR3f+Dz52+qbUK pOLofkEx/PZ6MpDUCwec4rDfH9YKzJQIFIYr/xvdBa+SCqbqzUDrl99G966QjMJOtJ1H L2Mw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=eijKYTcdSgjUORNbFd3aQ96Ibey7LIG8Pwg8gaFrgAg=; b=j4m3GphqtX7GwxccfvzRjBxZD/SzUn4ISJLd4KGQ8K4pVwCBZZIfa4sI2muURYQ3dm a8YDNKYuP5UjoR2wgoQMlP2uUQGbuvzLSTCrwM1kuagz/4bs3XEot7gtE1uHE3MpxXD+ rKymegs8z0tmEGv52hePgply7UZDsH+rX3zTjL3VSLkkYCg5VT3eV9Qb/raujNiQloIh quPU0/AH2cXKfwdQC2mHK+EpCqmiKNnNTuLzvwM+5eqWie7AZehi0aRt+kfC4a/faSPa Y0dT9bzqTacUihKAUeASGrLqvyS+IE3f4lA2jUEEZ55kc3ABPhAq4pi34GwCAlU0sVT8 fOEA== X-Gm-Message-State: AOAM532gpeqFwU97CChV6isz9sfrQnKvD7G6zAlz9nvnivk0H2l8X4hv yA0RJdYTg0Qua3Z2qvVq6VakzA== X-Google-Smtp-Source: ABdhPJwGJ5iiNXEz9a2oX13W4as921cItoqK86UfVS7Fxq0F+btKX647Rjq10yY2LWlUAxolUDcpng== X-Received: by 2002:ac8:7699:: with SMTP id g25mr4231845qtr.309.1624535896000; Thu, 24 Jun 2021 04:58:16 -0700 (PDT) Received: from pop-os.fios-router.home (pool-71-163-245-5.washdc.fios.verizon.net. [71.163.245.5]) by smtp.googlemail.com with ESMTPSA id w3sm2287173qkp.55.2021.06.24.04.58.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Jun 2021 04:58:15 -0700 (PDT) From: Thara Gopinath To: agross@kernel.org, bjorn.andersson@linaro.org, rui.zhang@intel.com, daniel.lezcano@linaro.org, viresh.kumar@linaro.org, rjw@rjwysocki.net, robh+dt@kernel.org Cc: linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Subject: [Patch v2 1/5] firmware: qcom_scm: Introduce SCM calls to access LMh Date: Thu, 24 Jun 2021 07:58:09 -0400 Message-Id: <20210624115813.3613290-2-thara.gopinath@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210624115813.3613290-1-thara.gopinath@linaro.org> References: <20210624115813.3613290-1-thara.gopinath@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Introduce SCM calls to access/configure limits management hardware(LMH). Signed-off-by: Thara Gopinath --- v1->v2: Changed the input parameters in qcom_scm_lmh_dcvsh from payload_buf and payload_size to payload_fn, payload_reg, payload_val as per Bjorn's review comments. drivers/firmware/qcom_scm.c | 54 +++++++++++++++++++++++++++++++++++++ drivers/firmware/qcom_scm.h | 4 +++ include/linux/qcom_scm.h | 14 ++++++++++ 3 files changed, 72 insertions(+) diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c index ee9cb545e73b..19e9fb91d084 100644 --- a/drivers/firmware/qcom_scm.c +++ b/drivers/firmware/qcom_scm.c @@ -1147,6 +1147,60 @@ int qcom_scm_qsmmu500_wait_safe_toggle(bool en) } EXPORT_SYMBOL(qcom_scm_qsmmu500_wait_safe_toggle); +bool qcom_scm_lmh_dcvsh_available(void) +{ + return __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_LMH, QCOM_SCM_LMH_LIMIT_DCVSH); +} +EXPORT_SYMBOL(qcom_scm_lmh_dcvsh_available); + +int qcom_scm_lmh_profile_change(u32 profile_id) +{ + struct qcom_scm_desc desc = { + .svc = QCOM_SCM_SVC_LMH, + .cmd = QCOM_SCM_LMH_LIMIT_PROFILE_CHANGE, + .arginfo = QCOM_SCM_ARGS(1, QCOM_SCM_VAL), + .args[0] = profile_id, + .owner = ARM_SMCCC_OWNER_SIP, + }; + + return qcom_scm_call(__scm->dev, &desc, NULL); +} +EXPORT_SYMBOL(qcom_scm_lmh_profile_change); + +int qcom_scm_lmh_dcvsh(u32 payload_fn, u32 payload_reg, u32 payload_val, + u64 limit_node, u32 node_id, u64 version) +{ + dma_addr_t payload_phys; + u32 *payload_buf; + int payload_size = 5 * sizeof(u32); + + struct qcom_scm_desc desc = { + .svc = QCOM_SCM_SVC_LMH, + .cmd = QCOM_SCM_LMH_LIMIT_DCVSH, + .arginfo = QCOM_SCM_ARGS(5, QCOM_SCM_RO, QCOM_SCM_VAL, QCOM_SCM_VAL, + QCOM_SCM_VAL, QCOM_SCM_VAL), + .args[1] = payload_size, + .args[2] = limit_node, + .args[3] = node_id, + .args[4] = version, + .owner = ARM_SMCCC_OWNER_SIP, + }; + + payload_buf = dma_alloc_coherent(__scm->dev, payload_size, &payload_phys, GFP_KERNEL); + if (!payload_buf) + return -ENOMEM; + + payload_buf[0] = payload_fn; + payload_buf[1] = 0; + payload_buf[2] = payload_reg; + payload_buf[3] = 1; + payload_buf[4] = payload_val; + + desc.args[0] = payload_phys; + return qcom_scm_call(__scm->dev, &desc, NULL); +} +EXPORT_SYMBOL(qcom_scm_lmh_dcvsh); + static int qcom_scm_find_dload_address(struct device *dev, u64 *addr) { struct device_node *tcsr; diff --git a/drivers/firmware/qcom_scm.h b/drivers/firmware/qcom_scm.h index 632fe3142462..d92156ceb3ac 100644 --- a/drivers/firmware/qcom_scm.h +++ b/drivers/firmware/qcom_scm.h @@ -114,6 +114,10 @@ extern int scm_legacy_call(struct device *dev, const struct qcom_scm_desc *desc, #define QCOM_SCM_SVC_HDCP 0x11 #define QCOM_SCM_HDCP_INVOKE 0x01 +#define QCOM_SCM_SVC_LMH 0x13 +#define QCOM_SCM_LMH_LIMIT_PROFILE_CHANGE 0x01 +#define QCOM_SCM_LMH_LIMIT_DCVSH 0x10 + #define QCOM_SCM_SVC_SMMU_PROGRAM 0x15 #define QCOM_SCM_SMMU_CONFIG_ERRATA1 0x03 #define QCOM_SCM_SMMU_CONFIG_ERRATA1_CLIENT_ALL 0x02 diff --git a/include/linux/qcom_scm.h b/include/linux/qcom_scm.h index 0165824c5128..c0475d1c9885 100644 --- a/include/linux/qcom_scm.h +++ b/include/linux/qcom_scm.h @@ -109,6 +109,12 @@ extern int qcom_scm_hdcp_req(struct qcom_scm_hdcp_req *req, u32 req_cnt, u32 *resp); extern int qcom_scm_qsmmu500_wait_safe_toggle(bool en); + +extern int qcom_scm_lmh_dcvsh(u32 payload_fn, u32 payload_reg, u32 payload_val, + u64 limit_node, u32 node_id, u64 version); +extern int qcom_scm_lmh_profile_change(u32 profile_id); +extern bool qcom_scm_lmh_dcvsh_available(void); + #else #include @@ -170,5 +176,13 @@ static inline int qcom_scm_hdcp_req(struct qcom_scm_hdcp_req *req, u32 req_cnt, static inline int qcom_scm_qsmmu500_wait_safe_toggle(bool en) { return -ENODEV; } + +static inline int qcom_scm_lmh_dcvsh(u32 payload_fn, u32 payload_reg, u32 payload_val, + u64 limit_node, u32 node_id, u64 version) + { return -ENODEV; } + +static inline int qcom_scm_lmh_profile_change(u32 profile_id) { return -ENODEV; } + +static inline bool qcom_scm_lmh_dcvsh_available(void) { return -ENODEV; } #endif #endif From patchwork Thu Jun 24 11:58:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thara Gopinath X-Patchwork-Id: 466342 Delivered-To: patch@linaro.org Received: by 2002:a02:c94a:0:0:0:0:0 with SMTP id u10csp382240jao; 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[71.163.245.5]) by smtp.googlemail.com with ESMTPSA id w3sm2287173qkp.55.2021.06.24.04.58.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Jun 2021 04:58:16 -0700 (PDT) From: Thara Gopinath To: agross@kernel.org, bjorn.andersson@linaro.org, rui.zhang@intel.com, daniel.lezcano@linaro.org, viresh.kumar@linaro.org, rjw@rjwysocki.net, robh+dt@kernel.org Cc: linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Subject: [Patch v2 2/5] thermal: qcom: Add support for LMh driver Date: Thu, 24 Jun 2021 07:58:10 -0400 Message-Id: <20210624115813.3613290-3-thara.gopinath@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210624115813.3613290-1-thara.gopinath@linaro.org> References: <20210624115813.3613290-1-thara.gopinath@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Driver enabling various pieces of Limits Management Hardware(LMh) for cpu cluster0 and cpu cluster1 namely kick starting monitoring of temperature, current, battery current violations, enabling reliability algorithm and setting up various temperature limits. The following has been explained in the cover letter. I am including this here so that this remains in the commit message as well. LMh is a hardware infrastructure on some Qualcomm SoCs that can enforce temperature and current limits as programmed by software for certain IPs like CPU. On many newer LMh is configured by firmware/TZ and no programming is needed from the kernel side. But on certain SoCs like sdm845 the firmware does not do a complete programming of the h/w. On such soc's kernel software has to explicitly set up the temperature limits and turn on various monitoring and enforcing algorithms on the hardware. Signed-off-by: Thara Gopinath --- v1->v2: - Cosmetic and spelling fixes from review comments from Randy Dunlap - Added irq_disable to lmh_irq_ops and removed disabling of irq from lmh_handle_irq. Now cpufreq explicitly disables irq prior to handling it as per Bjorn's suggestion. - Rebased to new version of qcom_scm_lmh_dcvsh as changed in patch 1. - Removed generic dt compatible string and introduced platform specific one as per Bjorn's suggestion. - Take arm, low and high temp thresholds for LMh from dt properties instead of #defines in the driver as per Daniel's suggestion. - Other minor fixes. drivers/thermal/qcom/Kconfig | 10 ++ drivers/thermal/qcom/Makefile | 1 + drivers/thermal/qcom/lmh.c | 251 ++++++++++++++++++++++++++++++++++ 3 files changed, 262 insertions(+) create mode 100644 drivers/thermal/qcom/lmh.c -- 2.25.1 diff --git a/drivers/thermal/qcom/Kconfig b/drivers/thermal/qcom/Kconfig index 8d5ac2df26dc..7d942f71e532 100644 --- a/drivers/thermal/qcom/Kconfig +++ b/drivers/thermal/qcom/Kconfig @@ -31,3 +31,13 @@ config QCOM_SPMI_TEMP_ALARM trip points. The temperature reported by the thermal sensor reflects the real time die temperature if an ADC is present or an estimate of the temperature based upon the over temperature stage value. + +config QCOM_LMH + tristate "Qualcomm Limits Management Hardware" + depends on ARCH_QCOM + help + This enables initialization of Qualcomm limits management + hardware(LMh). LMh allows for hardware-enforced mitigation for cpus based on + input from temperature and current sensors. On many newer Qualcomm SoCs + LMh is configured in the firmware and this feature need not be enabled. + However, on certain SoCs like sdm845 LMh has to be configured from kernel. diff --git a/drivers/thermal/qcom/Makefile b/drivers/thermal/qcom/Makefile index 252ea7d9da0b..0fa2512042e7 100644 --- a/drivers/thermal/qcom/Makefile +++ b/drivers/thermal/qcom/Makefile @@ -5,3 +5,4 @@ qcom_tsens-y += tsens.o tsens-v2.o tsens-v1.o tsens-v0_1.o \ tsens-8960.o obj-$(CONFIG_QCOM_SPMI_ADC_TM5) += qcom-spmi-adc-tm5.o obj-$(CONFIG_QCOM_SPMI_TEMP_ALARM) += qcom-spmi-temp-alarm.o +obj-$(CONFIG_QCOM_LMH) += lmh.o diff --git a/drivers/thermal/qcom/lmh.c b/drivers/thermal/qcom/lmh.c new file mode 100644 index 000000000000..a14cad83b459 --- /dev/null +++ b/drivers/thermal/qcom/lmh.c @@ -0,0 +1,251 @@ +// SPDX-License-Identifier: GPL-2.0-only + +/* + * Copyright (C) 2021, Linaro Limited. All rights reserved. + */ +#include +#include +#include +#include +#include +#include +#include +#include + +#define LMH_NODE_DCVS 0x44435653 +#define LMH_CLUSTER0_NODE_ID 0x6370302D +#define LMH_CLUSTER1_NODE_ID 0x6370312D + +#define LMH_SUB_FN_THERMAL 0x54484D4C +#define LMH_SUB_FN_CRNT 0x43524E54 +#define LMH_SUB_FN_REL 0x52454C00 +#define LMH_SUB_FN_BCL 0x42434C00 + +#define LMH_ALGO_MODE_ENABLE 0x454E424C +#define LMH_TH_HI_THRESHOLD 0x48494748 +#define LMH_TH_LOW_THRESHOLD 0x4C4F5700 +#define LMH_TH_ARM_THRESHOLD 0x41524D00 + +#define LMH_REG_DCVS_INTR_CLR 0x8 + +struct lmh_hw_data { + void __iomem *base; + struct irq_domain *domain; + int irq; + u32 cpu_id; +}; + +static irqreturn_t lmh_handle_irq(int hw_irq, void *data) +{ + struct lmh_hw_data *lmh_data = data; + int irq = irq_find_mapping(lmh_data->domain, 0); + + /* + * Call the cpufreq driver to handle the interrupt. + */ + if (irq) + generic_handle_irq(irq); + + return 0; +} + +static void lmh_enable_interrupt(struct irq_data *d) +{ + struct lmh_hw_data *lmh_data = irq_data_get_irq_chip_data(d); + + /* Clear the existing interrupt */ + writel(0xff, lmh_data->base + LMH_REG_DCVS_INTR_CLR); + enable_irq(lmh_data->irq); +} + +static void lmh_disable_interrupt(struct irq_data *d) +{ + struct lmh_hw_data *lmh_data = irq_data_get_irq_chip_data(d); + + disable_irq_nosync(lmh_data->irq); +} + +static struct irq_chip lmh_irq_chip = { + .name = "lmh", + .irq_enable = lmh_enable_interrupt, + .irq_disable = lmh_disable_interrupt +}; + +static int lmh_irq_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hw) +{ + struct lmh_hw_data *lmh_data = d->host_data; + + irq_set_chip_and_handler(irq, &lmh_irq_chip, handle_simple_irq); + irq_set_chip_data(irq, lmh_data); + + return 0; +} + +static const struct irq_domain_ops lmh_irq_ops = { + .map = lmh_irq_map, + .xlate = irq_domain_xlate_onecell, +}; + +static int lmh_probe(struct platform_device *pdev) +{ + struct device *dev; + struct device_node *np; + struct lmh_hw_data *lmh_data; + u32 node_id; + int temp_low, temp_high, temp_arm, ret; + + dev = &pdev->dev; + np = dev->of_node; + if (!np) + return -EINVAL; + + lmh_data = devm_kzalloc(dev, sizeof(*lmh_data), GFP_KERNEL); + if (!lmh_data) + return -ENOMEM; + + lmh_data->base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(lmh_data->base)) + return PTR_ERR(lmh_data->base); + + ret = of_property_read_u32(np, "qcom,lmh-cpu-id", &lmh_data->cpu_id); + if (ret) { + dev_err(dev, "missing qcom,lmh-cpu-id property\n"); + return ret; + } + + ret = of_property_read_u32(np, "qcom,lmh-temperature-high", &temp_high); + if (ret) { + dev_err(dev, "missing qcom,lmh-temperature-high property\n"); + return ret; + } + + ret = of_property_read_u32(np, "qcom,lmh-temperature-low", &temp_low); + if (ret) { + dev_err(dev, "missing qcom,lmh-temperature-low property\n"); + return ret; + } + + ret = of_property_read_u32(np, "qcom,lmh-temperature-arm", &temp_arm); + if (ret) { + dev_err(dev, "missing qcom,lmh-temperature-arm property\n"); + return ret; + } + + /* + * Only sdm845 has lmh hardware currently enabled from hlos. If this is needed + * for other platforms, revisit this to check if the should be part + * of a dt match table. + */ + if (lmh_data->cpu_id == 0) { + node_id = LMH_CLUSTER0_NODE_ID; + } else if (lmh_data->cpu_id == 4) { + node_id = LMH_CLUSTER1_NODE_ID; + } else { + dev_err(dev, "Wrong CPU id associated with LMh node\n"); + return -EINVAL; + } + + platform_set_drvdata(pdev, lmh_data); + + if (!qcom_scm_lmh_dcvsh_available()) + return -EINVAL; + + /* Enable Thermal Algorithm */ + ret = qcom_scm_lmh_dcvsh(LMH_SUB_FN_THERMAL, LMH_ALGO_MODE_ENABLE, 1, + LMH_NODE_DCVS, node_id, 0); + if (ret) { + dev_err(dev, "Error %d enabling thermal subfunction\n", ret); + return ret; + } + + /* Enable Current Sensing Algorithm */ + ret = qcom_scm_lmh_dcvsh(LMH_SUB_FN_CRNT, LMH_ALGO_MODE_ENABLE, 1, + LMH_NODE_DCVS, node_id, 0); + if (ret) { + dev_err(dev, "Error %d enabling current subfunction\n", ret); + return ret; + } + + /* Enable Reliability Algorithm */ + ret = qcom_scm_lmh_dcvsh(LMH_SUB_FN_REL, LMH_ALGO_MODE_ENABLE, 1, + LMH_NODE_DCVS, node_id, 0); + if (ret) { + dev_err(dev, "Error %d enabling reliability subfunction\n", ret); + return ret; + } + + /* Enable BCL Algorithm */ + ret = qcom_scm_lmh_dcvsh(LMH_SUB_FN_BCL, LMH_ALGO_MODE_ENABLE, 1, + LMH_NODE_DCVS, node_id, 0); + if (ret) { + dev_err(dev, "Error %d enabling BCL subfunction\n", ret); + return ret; + } + + ret = qcom_scm_lmh_profile_change(0x1); + if (ret) { + dev_err(dev, "Error %d changing profile\n", ret); + return ret; + } + + /* Set default thermal trips */ + ret = qcom_scm_lmh_dcvsh(LMH_SUB_FN_THERMAL, LMH_TH_ARM_THRESHOLD, temp_arm, + LMH_NODE_DCVS, node_id, 0); + if (ret) { + dev_err(dev, "Error setting thermal ARM threshold%d\n", ret); + return ret; + } + + ret = qcom_scm_lmh_dcvsh(LMH_SUB_FN_THERMAL, LMH_TH_HI_THRESHOLD, temp_high, + LMH_NODE_DCVS, node_id, 0); + if (ret) { + dev_err(dev, "Error setting thermal HI threshold%d\n", ret); + return ret; + } + + ret = qcom_scm_lmh_dcvsh(LMH_SUB_FN_THERMAL, LMH_TH_LOW_THRESHOLD, temp_low, + LMH_NODE_DCVS, node_id, 0); + if (ret) { + dev_err(dev, "Error setting thermal ARM threshold%d\n", ret); + return ret; + } + + lmh_data->irq = platform_get_irq(pdev, 0); + lmh_data->domain = irq_domain_add_linear(np, 1, &lmh_irq_ops, lmh_data); + if (!lmh_data->domain) { + dev_err(dev, "Error adding irq_domain\n"); + return -EINVAL; + } + + ret = devm_request_irq(dev, lmh_data->irq, lmh_handle_irq, + IRQF_TRIGGER_HIGH | IRQF_ONESHOT | IRQF_NO_SUSPEND, + "lmh-irq", lmh_data); + if (ret) { + dev_err(dev, "Error %d registering irq %x\n", ret, lmh_data->irq); + irq_domain_remove(lmh_data->domain); + return ret; + } + + /* Disable the irq and let cpufreq enable it when ready to handle the interrupt */ + disable_irq(lmh_data->irq); + + return 0; +} + +static const struct of_device_id lmh_table[] = { + { .compatible = "qcom,sdm845-lmh", }, + {} +}; +MODULE_DEVICE_TABLE(of, lmh_table); + +static struct platform_driver lmh_driver = { + .probe = lmh_probe, + .driver = { + .name = "qcom-lmh", + .of_match_table = lmh_table, + }, +}; +module_platform_driver(lmh_driver); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("QCOM LMh driver"); From patchwork Thu Jun 24 11:58:11 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thara Gopinath X-Patchwork-Id: 467060 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=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 7C706C49EAB for ; Thu, 24 Jun 2021 11:58:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 660ED611CD for ; 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[71.163.245.5]) by smtp.googlemail.com with ESMTPSA id w3sm2287173qkp.55.2021.06.24.04.58.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Jun 2021 04:58:17 -0700 (PDT) From: Thara Gopinath To: agross@kernel.org, bjorn.andersson@linaro.org, rui.zhang@intel.com, daniel.lezcano@linaro.org, viresh.kumar@linaro.org, rjw@rjwysocki.net, robh+dt@kernel.org Cc: linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Subject: [Patch v2 3/5] cpufreq: qcom-cpufreq-hw: Add dcvs interrupt support Date: Thu, 24 Jun 2021 07:58:11 -0400 Message-Id: <20210624115813.3613290-4-thara.gopinath@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210624115813.3613290-1-thara.gopinath@linaro.org> References: <20210624115813.3613290-1-thara.gopinath@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add interrupt support to notify the kernel of h/w initiated frequency throttling by LMh. Convey this to scheduler via thermal presssure interface. Signed-off-by: Thara Gopinath --- v1->v2: - Introduced qcom_cpufreq_hw_lmh_init to consolidate LMh related initializations as per Viresh's review comment. - Moved the piece of code restarting polling/re-enabling LMh interrupt to qcom_lmh_dcvs_notify therby simplifying isr and timer callback as per Viresh's suggestion. - Droped cpus from qcom_cpufreq_data and instead using cpus from cpufreq_policy in qcom_lmh_dcvs_notify as per Viresh's review comment. - Dropped dt property qcom,support-lmh as per Bjorn's suggestion. - Other minor/cosmetic fixes drivers/cpufreq/qcom-cpufreq-hw.c | 103 ++++++++++++++++++++++++++++++ 1 file changed, 103 insertions(+) diff --git a/drivers/cpufreq/qcom-cpufreq-hw.c b/drivers/cpufreq/qcom-cpufreq-hw.c index f86859bf76f1..241f6f2b441f 100644 --- a/drivers/cpufreq/qcom-cpufreq-hw.c +++ b/drivers/cpufreq/qcom-cpufreq-hw.c @@ -13,6 +13,7 @@ #include #include #include +#include #define LUT_MAX_ENTRIES 40U #define LUT_SRC GENMASK(31, 30) @@ -22,10 +23,13 @@ #define CLK_HW_DIV 2 #define LUT_TURBO_IND 1 +#define HZ_PER_KHZ 1000 + struct qcom_cpufreq_soc_data { u32 reg_enable; u32 reg_freq_lut; u32 reg_volt_lut; + u32 reg_current_vote; u32 reg_perf_state; u8 lut_row_size; }; @@ -33,7 +37,10 @@ struct qcom_cpufreq_soc_data { struct qcom_cpufreq_data { void __iomem *base; struct resource *res; + struct delayed_work lmh_dcvs_poll_work; const struct qcom_cpufreq_soc_data *soc_data; + struct cpufreq_policy *policy; + int lmh_dcvs_irq; }; static unsigned long cpu_hw_rate, xo_rate; @@ -251,10 +258,79 @@ static void qcom_get_related_cpus(int index, struct cpumask *m) } } +static inline unsigned long qcom_lmh_vote_to_freq(u32 val) +{ + return (val & 0x3FF) * 19200; +} + +static void qcom_lmh_dcvs_notify(struct qcom_cpufreq_data *data) +{ + struct cpufreq_policy *policy = data->policy; + struct dev_pm_opp *opp; + struct device *dev; + unsigned long max_capacity, capacity, freq_hz, throttled_freq; + unsigned int val, freq; + + /* + * Get the h/w throttled frequency, normalize it using the + * registered opp table and use it to calculate thermal pressure. + */ + val = readl_relaxed(data->base + data->soc_data->reg_current_vote); + freq = qcom_lmh_vote_to_freq(val); + freq_hz = freq * HZ_PER_KHZ; + + dev = get_cpu_device(cpumask_first(policy->cpus)); + opp = dev_pm_opp_find_freq_floor(dev, &freq_hz); + if (IS_ERR(opp) && PTR_ERR(opp) == -ERANGE) + opp = dev_pm_opp_find_freq_ceil(dev, &freq_hz); + + throttled_freq = freq_hz / HZ_PER_KHZ; + + /* Update thermal pressure */ + max_capacity = arch_scale_cpu_capacity(cpumask_first(policy->cpus)); + capacity = throttled_freq * max_capacity; + capacity /= policy->cpuinfo.max_freq; + /* Don't pass boost capacity to scheduler */ + if (capacity > max_capacity) + capacity = max_capacity; + arch_set_thermal_pressure(policy->cpus, max_capacity - capacity); + /* + * If h/w throttled frequency is higher than what cpufreq has requested for, stop + * polling and switch back to interrupt mechanism + */ + if (throttled_freq >= qcom_cpufreq_hw_get(cpumask_first(policy->cpus))) + /* Clear the existing interrupts and enable it back */ + enable_irq(data->lmh_dcvs_irq); + else + mod_delayed_work(system_highpri_wq, &data->lmh_dcvs_poll_work, + msecs_to_jiffies(10)); +} + +static void qcom_lmh_dcvs_poll(struct work_struct *work) +{ + struct qcom_cpufreq_data *data; + + data = container_of(work, struct qcom_cpufreq_data, lmh_dcvs_poll_work.work); + + qcom_lmh_dcvs_notify(data); +} + +static irqreturn_t qcom_lmh_dcvs_handle_irq(int irq, void *data) +{ + struct qcom_cpufreq_data *c_data = data; + + /* Disable interrupt and enable polling */ + disable_irq_nosync(c_data->lmh_dcvs_irq); + qcom_lmh_dcvs_notify(c_data); + + return 0; +} + static const struct qcom_cpufreq_soc_data qcom_soc_data = { .reg_enable = 0x0, .reg_freq_lut = 0x110, .reg_volt_lut = 0x114, + .reg_current_vote = 0x704, .reg_perf_state = 0x920, .lut_row_size = 32, }; @@ -274,6 +350,23 @@ static const struct of_device_id qcom_cpufreq_hw_match[] = { }; MODULE_DEVICE_TABLE(of, qcom_cpufreq_hw_match); +static void qcom_cpufreq_hw_lmh_init(struct cpufreq_policy *policy) +{ + struct qcom_cpufreq_data *data = policy->driver_data; + struct platform_device *pdev = cpufreq_get_driver_data(); + struct device *dev = &pdev->dev; + int ret; + + ret = devm_request_irq(dev, data->lmh_dcvs_irq, qcom_lmh_dcvs_handle_irq, + 0, "dcvsh-irq", data); + if (ret) { + dev_err(dev, "Error %d registering irq %x\n", ret, data->lmh_dcvs_irq); + return; + } + data->policy = policy; + INIT_DEFERRABLE_WORK(&data->lmh_dcvs_poll_work, qcom_lmh_dcvs_poll); +} + static int qcom_cpufreq_hw_cpu_init(struct cpufreq_policy *policy) { struct platform_device *pdev = cpufreq_get_driver_data(); @@ -370,6 +463,16 @@ static int qcom_cpufreq_hw_cpu_init(struct cpufreq_policy *policy) dev_warn(cpu_dev, "failed to enable boost: %d\n", ret); } + /* Look for LMh interrupt. If no interrupt line is specified / + * if there is an error, allow cpufreq to be enabled as usual. + */ + data->lmh_dcvs_irq = platform_get_irq(pdev, index); + if (data->lmh_dcvs_irq > 0) { + qcom_cpufreq_hw_lmh_init(policy); + } else if (data->lmh_dcvs_irq != -ENXIO) { + ret = data->lmh_dcvs_irq; + goto error; + } return 0; error: kfree(data); From patchwork Thu Jun 24 11:58:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thara Gopinath X-Patchwork-Id: 466475 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=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, 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 BB21EC49EBD for ; Thu, 24 Jun 2021 11:58:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9B39E611CD for ; Thu, 24 Jun 2021 11:58:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231169AbhFXMAk (ORCPT ); Thu, 24 Jun 2021 08:00:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37726 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230518AbhFXMAj (ORCPT ); Thu, 24 Jun 2021 08:00:39 -0400 Received: from mail-qt1-x82d.google.com (mail-qt1-x82d.google.com [IPv6:2607:f8b0:4864:20::82d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A5D6AC061760 for ; Thu, 24 Jun 2021 04:58:19 -0700 (PDT) Received: by mail-qt1-x82d.google.com with SMTP id r20so4564663qtp.3 for ; Thu, 24 Jun 2021 04:58:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=rTRpC3uiw6MTlkqKW4TuhPSIXQr7Qt2j6LLeuz0vTvI=; b=tAbvLt9LtHb7XwdRozCDlbcHWH2wttPU6nspU3PwwNc/jYTRePpMvvJogDJS2ab3tN p2q8QBJZA1E4k22f8z9THTkmEmOEcSv+8+d9avxN8uAG8ELdgDsFpr0WrakxDW+Key/B nTzU73bNNpXd+IdPparXlw1MGzSOfDjIMZVGDEFCv4k5o2HmeqMUwqbq62elH9znRyy3 3NeS8gCqVLQ9RBd3uxlHF7mtwQ6VWyAxjAt7tDG6mvDcoPS6YXqb0VfbVnWmNqVvztil WxChLrlGGbJgDV0H2C84DBAxj5VyABESx482rju3rorLLsU0WgX8hUyMEy+Q+dWpblhJ fl3g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=rTRpC3uiw6MTlkqKW4TuhPSIXQr7Qt2j6LLeuz0vTvI=; b=ab8qAM+oXvKhZFC+YZAtFITdrb3R896bGv7oD3v9jAt7FqdfyOdCY5GMZumhRkBmc0 7qIl8vuuBL8ZEaC4vsjSfHm8Ly3738y9VXyHuTMeaC1UIidDF/DuoVT5B8qiVeEkVW0l fFPQYBnx0KQyQr1e3Vx8kV5pzC+OFVQ/M3Gvop8qi1Vv0E4qBc4u2VL+SdOrbF7T5wzW 6XuMTZbOM2ZwO8LSMQyBDaVr7xe0P+YSbhuEMSMlb0/5zenvtjRQfWiKUjAis/z3ZyNY 2vYrc8br48QXo7mz9K1ulxcinTUYV7jbRjuVG7QyUT3xVG9qw+NSNzkUl2QekM4VwSaM S1ow== X-Gm-Message-State: AOAM531QHmH+PJJPMfotjI+RynoXjBlX2NN2aYlVS3xx0bQv5aJodifD 5yjUdndmvgOKSsNqUR8o2HBSyQ== X-Google-Smtp-Source: ABdhPJyAwtibj3tAMnr/bmYnh5zjBnbuHkZ2Y0FaGlwH/JWcK90Jz9AlV2WRnEy3qDxsdRIsRrAi+A== X-Received: by 2002:ac8:59d4:: with SMTP id f20mr4359824qtf.189.1624535898877; Thu, 24 Jun 2021 04:58:18 -0700 (PDT) Received: from pop-os.fios-router.home (pool-71-163-245-5.washdc.fios.verizon.net. [71.163.245.5]) by smtp.googlemail.com with ESMTPSA id w3sm2287173qkp.55.2021.06.24.04.58.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Jun 2021 04:58:18 -0700 (PDT) From: Thara Gopinath To: agross@kernel.org, bjorn.andersson@linaro.org, rui.zhang@intel.com, daniel.lezcano@linaro.org, viresh.kumar@linaro.org, rjw@rjwysocki.net, robh+dt@kernel.org Cc: linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Subject: [Patch v2 4/5] arm64: boot: dts: qcom: sdm45: Add support for LMh node Date: Thu, 24 Jun 2021 07:58:12 -0400 Message-Id: <20210624115813.3613290-5-thara.gopinath@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210624115813.3613290-1-thara.gopinath@linaro.org> References: <20210624115813.3613290-1-thara.gopinath@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add LMh nodes for cpu cluster0 and cpu cluster1. Also add interrupt support in cpufreq node to capture the LMh interrupt and let the scheduler know of the max frequency throttling. Signed-off-by: Thara Gopinath --- v1->v2: - Dropped dt property qcom,support-lmh as per Bjorn's review comments. - Changed lmh compatible from generic to platform specific. - Introduced properties specifying arm, low and high temp thresholds for LMh as per Daniel's suggestion. arch/arm64/boot/dts/qcom/sdm845.dtsi | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi index 0a86fe71a66d..202fec09becd 100644 --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi @@ -3646,6 +3646,30 @@ swm: swm@c85 { }; }; + lmh_cluster1: lmh@17d70800 { + compatible = "qcom,sdm845-lmh"; + reg = <0 0x17d70800 0 0x401>; + interrupts = ; + qcom,lmh-cpu-id = <0x4>; + qcom,lmh-temperature-arm = <65000>; + qcom,lmh-temperature-low = <74500>; + qcom,lmh-temperature-high = <75000>; + interrupt-controller; + #interrupt-cells = <1>; + }; + + lmh_cluster0: lmh@17d78800 { + compatible = "qcom,sdm845-lmh"; + reg = <0 0x17d78800 0 0x401>; + interrupts = ; + qcom,lmh-cpu-id = <0x0>; + qcom,lmh-temperature-arm = <65000>; + qcom,lmh-temperature-low = <74500>; + qcom,lmh-temperature-high = <75000>; + interrupt-controller; + #interrupt-cells = <1>; + }; + sound: sound { }; @@ -4911,6 +4935,8 @@ cpufreq_hw: cpufreq@17d43000 { reg = <0 0x17d43000 0 0x1400>, <0 0x17d45800 0 0x1400>; reg-names = "freq-domain0", "freq-domain1"; + interrupts-extended = <&lmh_cluster0 0>, <&lmh_cluster1 0>; + clocks = <&rpmhcc RPMH_CXO_CLK>, <&gcc GPLL0>; clock-names = "xo", "alternate"; From patchwork Thu Jun 24 11:58:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thara Gopinath X-Patchwork-Id: 466474 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=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, UPPERCASE_50_75, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 6C982C49EBF for ; Thu, 24 Jun 2021 11:58:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5792E613CC for ; Thu, 24 Jun 2021 11:58:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230518AbhFXMAl (ORCPT ); Thu, 24 Jun 2021 08:00:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37728 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230495AbhFXMAj (ORCPT ); Thu, 24 Jun 2021 08:00:39 -0400 Received: from mail-qk1-x735.google.com (mail-qk1-x735.google.com [IPv6:2607:f8b0:4864:20::735]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ADFB1C061768 for ; Thu, 24 Jun 2021 04:58:20 -0700 (PDT) Received: by mail-qk1-x735.google.com with SMTP id c23so13668863qkc.10 for ; Thu, 24 Jun 2021 04:58:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=2GJGn5eLqx0s0Q4U/UEeSDrOA0kY4iGxnCx8wLaC1bI=; b=wVEZVh8EAVU8wAHFfCs4SPv7x4AQ28ulZFOk+9BYtaz7vW+J1n12QuZGIUBjIl4jWJ fE4ebunUy6cDhqg5J0sVzQAEvPvPqRYr9nCGxbFvwKKJbQT/2f3lluFbJMpgARz+gGaL 0W2kMHBFZTz/JlsfP+MLWIGOyYdHTrd5zm8rIUb2ArfjmM/g1ZHJ+0b7ZlZNp3JNgkSl wLUkEbq9cVbkDbr1Kx/q1eVCJEl68wzoyRNtbjY7eXP5EOBvrWZJwy5kGBFqE+2CD1Gi DrDlXaxGxRLwAI60JAa/2K19eaqEauo9N7Z4wG69/E7//e8EAoRIAWmufGjwTWh0S358 CdWg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=2GJGn5eLqx0s0Q4U/UEeSDrOA0kY4iGxnCx8wLaC1bI=; b=jbvJNHB5vv4UKY3tuxTMNeQIuoyb2giCXnlVfdVZFUqmBC6YJcbGvGicg99J/8DQZ7 nkEgcEcswN0R/hOV5cGGGzf71kDlVIJbTdrzaoYUSBvEVwMPTBmnmWqJjrHppWKIWtbi SYRsbi9KpMjjXkDmyqloTeUvw4CzkGidMO0Wma82k6p+yeudt+b/VTyQghmgk5jgYiRG k7omAAMvUnM+NfTp4CTYjXEg2KvYWSQ69UPYNhULyxtUhtFz2F6KTpLOkJjodtvDaDkx KJIuAj8b1g740pw7+cjwsljO3xpEKnn89M+1gojfFOwc7VVxI3qDxkG4h+yK1dFXTCOG 4nIw== X-Gm-Message-State: AOAM532XOdw14I9dZwin4OEtai/Tc6MaX0xAvGZiDgax1iE0M/jiW2cB Gv7avqK1b1WhH/ytQRYrtqCE9g== X-Google-Smtp-Source: ABdhPJzolh/ITV1zDyPuRGeHkqhJsBR59L8IZxUTPp+iiHCVjeny6Wa0B3wqofNQ9xtmsgbYEGTShQ== X-Received: by 2002:a37:66d0:: with SMTP id a199mr5360724qkc.238.1624535899906; Thu, 24 Jun 2021 04:58:19 -0700 (PDT) Received: from pop-os.fios-router.home (pool-71-163-245-5.washdc.fios.verizon.net. [71.163.245.5]) by smtp.googlemail.com with ESMTPSA id w3sm2287173qkp.55.2021.06.24.04.58.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Jun 2021 04:58:19 -0700 (PDT) From: Thara Gopinath To: agross@kernel.org, bjorn.andersson@linaro.org, rui.zhang@intel.com, daniel.lezcano@linaro.org, viresh.kumar@linaro.org, rjw@rjwysocki.net, robh+dt@kernel.org Cc: linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Subject: [Patch v2 5/5] arm64: boot: dts: qcom: sdm845: Remove passive trip points for thermal zones 0-7 Date: Thu, 24 Jun 2021 07:58:13 -0400 Message-Id: <20210624115813.3613290-6-thara.gopinath@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210624115813.3613290-1-thara.gopinath@linaro.org> References: <20210624115813.3613290-1-thara.gopinath@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Now that Limits h/w is enabled to monitor thermal events around cpus and throttle the cpu frequencies, remove cpufreq cooling device for the cpus which does software throttling of cpu frequencies. Signed-off-by: Thara Gopinath --- v1->v2: Removing only cooling maps for cpu specific thermal zones keeping the trip point definitions intact as per Daniel's suggestion. This is to ensure that thermal zone temparature and trip violation information is available to any userspace daemon monitoring these zones. arch/arm64/boot/dts/qcom/sdm845.dtsi | 136 --------------------------- 1 file changed, 136 deletions(-) diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi index 202fec09becd..7819f87d97ac 100644 --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi @@ -4994,23 +4994,6 @@ cpu0_crit: cpu_crit { type = "critical"; }; }; - - cooling-maps { - map0 { - trip = <&cpu0_alert0>; - cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; - }; - map1 { - trip = <&cpu0_alert1>; - cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; - }; - }; }; cpu1-thermal { @@ -5038,23 +5021,6 @@ cpu1_crit: cpu_crit { type = "critical"; }; }; - - cooling-maps { - map0 { - trip = <&cpu1_alert0>; - cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; - }; - map1 { - trip = <&cpu1_alert1>; - cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; - }; - }; }; cpu2-thermal { @@ -5082,23 +5048,6 @@ cpu2_crit: cpu_crit { type = "critical"; }; }; - - cooling-maps { - map0 { - trip = <&cpu2_alert0>; - cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; - }; - map1 { - trip = <&cpu2_alert1>; - cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; - }; - }; }; cpu3-thermal { @@ -5126,23 +5075,6 @@ cpu3_crit: cpu_crit { type = "critical"; }; }; - - cooling-maps { - map0 { - trip = <&cpu3_alert0>; - cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; - }; - map1 { - trip = <&cpu3_alert1>; - cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; - }; - }; }; cpu4-thermal { @@ -5170,23 +5102,6 @@ cpu4_crit: cpu_crit { type = "critical"; }; }; - - cooling-maps { - map0 { - trip = <&cpu4_alert0>; - cooling-device = <&CPU4 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU5 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU6 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU7 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; - }; - map1 { - trip = <&cpu4_alert1>; - cooling-device = <&CPU4 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU5 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU6 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU7 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; - }; - }; }; cpu5-thermal { @@ -5214,23 +5129,6 @@ cpu5_crit: cpu_crit { type = "critical"; }; }; - - cooling-maps { - map0 { - trip = <&cpu5_alert0>; - cooling-device = <&CPU4 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU5 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU6 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU7 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; - }; - map1 { - trip = <&cpu5_alert1>; - cooling-device = <&CPU4 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU5 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU6 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU7 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; - }; - }; }; cpu6-thermal { @@ -5258,23 +5156,6 @@ cpu6_crit: cpu_crit { type = "critical"; }; }; - - cooling-maps { - map0 { - trip = <&cpu6_alert0>; - cooling-device = <&CPU4 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU5 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU6 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU7 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; - }; - map1 { - trip = <&cpu6_alert1>; - cooling-device = <&CPU4 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU5 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU6 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU7 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; - }; - }; }; cpu7-thermal { @@ -5302,23 +5183,6 @@ cpu7_crit: cpu_crit { type = "critical"; }; }; - - cooling-maps { - map0 { - trip = <&cpu7_alert0>; - cooling-device = <&CPU4 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU5 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU6 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU7 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; - }; - map1 { - trip = <&cpu7_alert1>; - cooling-device = <&CPU4 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU5 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU6 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&CPU7 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; - }; - }; }; aoss0-thermal {