From patchwork Mon Sep 26 08:34:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xuewen Yan X-Patchwork-Id: 12988377 X-Patchwork-Delegate: viresh.linux@gmail.com 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2EDF1C6FA82 for ; Mon, 26 Sep 2022 08:35:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231435AbiIZIfW (ORCPT ); Mon, 26 Sep 2022 04:35:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41638 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234176AbiIZIfV (ORCPT ); Mon, 26 Sep 2022 04:35:21 -0400 Received: from SHSQR01.spreadtrum.com (mx1.unisoc.com [222.66.158.135]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 09F7513DD8; Mon, 26 Sep 2022 01:35:19 -0700 (PDT) Received: from SHSend.spreadtrum.com (bjmbx01.spreadtrum.com [10.0.64.7]) by SHSQR01.spreadtrum.com with ESMTPS id 28Q8YCkJ085089 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NO); Mon, 26 Sep 2022 16:34:12 +0800 (CST) (envelope-from Xuewen.Yan@unisoc.com) Received: from BJ10918PCW.spreadtrum.com (10.0.74.50) by BJMBX01.spreadtrum.com (10.0.64.7) with Microsoft SMTP Server (TLS) id 15.0.1497.23; Mon, 26 Sep 2022 16:34:12 +0800 From: Xuewen Yan To: CC: , , , , , , , Subject: [PATCH v2] cpufreq: qcom-cpufreq-hw: Add cpufreq qos for LMh Date: Mon, 26 Sep 2022 16:34:05 +0800 Message-ID: <20220926083405.7801-1-xuewen.yan@unisoc.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220926055130.yr67653e52vyuutv@vireshk-i7> References: <20220926055130.yr67653e52vyuutv@vireshk-i7> MIME-Version: 1.0 X-Originating-IP: [10.0.74.50] X-ClientProxiedBy: SHCAS03.spreadtrum.com (10.0.1.207) To BJMBX01.spreadtrum.com (10.0.64.7) X-MAIL: SHSQR01.spreadtrum.com 28Q8YCkJ085089 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Before update thermal pressure, the max cpufreq should be limited. Add QOS control for Lmh throttle cpufreq. Signed-off-by: Xuewen Yan --- v1->v2: reabse to cpufreq/arm/linux-next; --- drivers/cpufreq/qcom-cpufreq-hw.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/cpufreq/qcom-cpufreq-hw.c b/drivers/cpufreq/qcom-cpufreq-hw.c index bb32659820ce..833589bc95e4 100644 --- a/drivers/cpufreq/qcom-cpufreq-hw.c +++ b/drivers/cpufreq/qcom-cpufreq-hw.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include @@ -56,6 +57,8 @@ struct qcom_cpufreq_data { struct cpufreq_policy *policy; bool per_core_dcvs; + + struct freq_qos_request throttle_freq_req; }; static unsigned long cpu_hw_rate, xo_rate; @@ -321,6 +324,8 @@ static void qcom_lmh_dcvs_notify(struct qcom_cpufreq_data *data) throttled_freq = freq_hz / HZ_PER_KHZ; + freq_qos_update_request(&data->throttle_freq_req, throttled_freq); + /* Update thermal pressure (the boost frequencies are accepted) */ arch_update_thermal_pressure(policy->related_cpus, throttled_freq); @@ -413,6 +418,14 @@ static int qcom_cpufreq_hw_lmh_init(struct cpufreq_policy *policy, int index) if (data->throttle_irq < 0) return data->throttle_irq; + ret = freq_qos_add_request(&policy->constraints, + &data->throttle_freq_req, FREQ_QOS_MAX, + FREQ_QOS_MAX_DEFAULT_VALUE); + if (ret < 0) { + dev_err(&pdev->dev, "Failed to add freq constraint (%d)\n", ret); + return ret; + } + data->cancel_throttle = false; data->policy = policy; @@ -479,6 +492,7 @@ static void qcom_cpufreq_hw_lmh_exit(struct qcom_cpufreq_data *data) if (data->throttle_irq <= 0) return; + freq_qos_remove_request(&data->throttle_freq_req); free_irq(data->throttle_irq, data); }