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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 78D02CD128A for ; Wed, 3 Apr 2024 16:23:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=J2G/0sN0FbkmLX5oqCKKZ/IOJQQOi6ipeXSuow2bwQ8=; b=vsz09yqD/90B8h jiHrVab44mdU7li9lPN99ZoTbg4DZ6fc3kNxh6YG3ekFC+Yg/X0kZtRkzTAveTamI+zuvtVqTouqa d1SERw9smkPstEVMlKBXQwdcUi/GW++xhlAcDBHzTa3qa181HGd6STLhDItd43M60fCVMmmY2sqwW XSy4KQ7Y2VZACMuJRDN6r0FXs3J+g7h8C6IJ8fxzHqGG2OJt9lcsTGlwrl0o+F7B7lvmTkwN0yDAK nx3vu0rm9M93JgXjCug45jry56RvDgY/qQa5SD58kg/BQGDPp9cB41e9lmaEiOvDfT//yXp05g8wP m+EamOHIXP0vS6Sbd5/w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rs3Of-0000000Gwnw-1AdM; Wed, 03 Apr 2024 16:23:33 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rs3OY-0000000Gwkh-2vUm for linux-arm-kernel@lists.infradead.org; Wed, 03 Apr 2024 16:23:29 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 5430D1684; Wed, 3 Apr 2024 09:23:57 -0700 (PDT) Received: from e129166.arm.com (unknown [10.57.72.191]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 6A56D3F7B4; Wed, 3 Apr 2024 09:23:24 -0700 (PDT) From: Lukasz Luba To: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Cc: lukasz.luba@arm.com, dietmar.eggemann@arm.com, linux-arm-kernel@lists.infradead.org, sudeep.holla@arm.com, cristian.marussi@arm.com, linux-samsung-soc@vger.kernel.org, rafael@kernel.org, viresh.kumar@linaro.org, quic_sibis@quicinc.com Subject: [PATCH 2/2] cpufreq: scmi: Update Energy Model with allowed performance limits Date: Wed, 3 Apr 2024 17:23:15 +0100 Message-Id: <20240403162315.1458337-3-lukasz.luba@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240403162315.1458337-1-lukasz.luba@arm.com> References: <20240403162315.1458337-1-lukasz.luba@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240403_092326_869320_C7E0C296 X-CRM114-Status: GOOD ( 10.46 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The Energy Model (EM) supports performance limits updates. Use the SCMI notifications to get information from FW about allowed frequency scope for the CPUs. Signed-off-by: Lukasz Luba --- drivers/cpufreq/scmi-cpufreq.c | 19 ++++++++++++++++--- 1 file changed, 16 insertions(+), 3 deletions(-) diff --git a/drivers/cpufreq/scmi-cpufreq.c b/drivers/cpufreq/scmi-cpufreq.c index d946b7a082584..90c8448578cb1 100644 --- a/drivers/cpufreq/scmi-cpufreq.c +++ b/drivers/cpufreq/scmi-cpufreq.c @@ -185,12 +185,25 @@ static int scmi_limit_notify_cb(struct notifier_block *nb, unsigned long event, { struct scmi_data *priv = container_of(nb, struct scmi_data, limit_notify_nb); struct scmi_perf_limits_report *limit_notify = data; + unsigned int limit_freq_max_khz, limit_freq_min_khz; struct cpufreq_policy *policy = priv->policy; - unsigned int limit_freq_khz; + struct em_perf_domain *pd; + int ret; + + limit_freq_max_khz = limit_notify->range_max_freq / HZ_PER_KHZ; + limit_freq_min_khz = limit_notify->range_min_freq / HZ_PER_KHZ; - limit_freq_khz = limit_notify->range_max_freq / HZ_PER_KHZ; + pd = em_cpu_get(policy->cpu); + if (pd) { + ret = em_update_performance_limits(pd, limit_freq_min_khz, + limit_freq_max_khz); + if (ret) + dev_warn(priv->cpu_dev, + "EM perf limits update failed\n"); + } - policy->max = clamp(limit_freq_khz, policy->cpuinfo.min_freq, policy->cpuinfo.max_freq); + policy->max = clamp(limit_freq_max_khz, policy->cpuinfo.min_freq, + policy->cpuinfo.max_freq); cpufreq_update_pressure(policy); -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel