From patchwork Wed Dec 2 20:39:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cristian Marussi X-Patchwork-Id: 11947109 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=-18.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,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 BFC2EC6369E for ; Wed, 2 Dec 2020 20:48:13 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id ADDFE221EB for ; Wed, 2 Dec 2020 20:48:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org ADDFE221EB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:MIME-Version:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:References:In-Reply-To:Message-Id:Date:Subject:To: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=PXcOTYCkCF79MTPCes7bYwzY1hB8zUapmI7WuI4LtwU=; b=KJqZUm6qqHWMUnoHXF1weR0YJz 9J69L8r00vSQQZAVqA6FO93U6+TNjPcLqrwU9oa6+3oRP63DxZJoEjUJs5I5XpZhVOfcJ4s0ilUxX OE2HbZAvdenE4ZqeKzxHKhV9a8ijbIAe2zhU9udwmK7jdfztAmeBHf8+w5Xm7tml9qu9b49So5o9J 7W5AZYX0FHcGctgFQ7ZR7houeg6yVClA5cVO6t9DHRWC7rJTyUDe0cQ9pa6H91JMQpOzx3TJ7tqP9 M1c/Kv3eWNyUFx7SwXQZnhUel55mDSArguKFRR0Bggho7a1pOItBhEd0tyI76f6baa7qj+GYzsiW9 msOGEJxw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kkZ09-00048B-5N; Wed, 02 Dec 2020 20:45:25 +0000 Received: from foss.arm.com ([217.140.110.172]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kkYvk-0002Mw-4G for linux-arm-kernel@lists.infradead.org; Wed, 02 Dec 2020 20:40:56 +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 F27B9150C; Wed, 2 Dec 2020 12:40:51 -0800 (PST) Received: from e120937-lin.home (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id BB6B43F575; Wed, 2 Dec 2020 12:40:49 -0800 (PST) From: Cristian Marussi To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 13/37] cpufreq: scmi: port driver to the new scmi_perf_proto_ops interface Date: Wed, 2 Dec 2020 20:39:45 +0000 Message-Id: <20201202204009.32073-14-cristian.marussi@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201202204009.32073-1-cristian.marussi@arm.com> References: <20201202204009.32073-1-cristian.marussi@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201202_154052_385554_8AAA5140 X-CRM114-Status: GOOD ( 16.97 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: f.fainelli@gmail.com, vincent.guittot@linaro.org, sudeep.holla@arm.com, thara.gopinath@linaro.org, Cristian Marussi , james.quinlan@broadcom.com, Jonathan.Cameron@Huawei.com, souvik.chakravarty@arm.com, etienne.carriere@linaro.org, lukasz.luba@arm.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Port driver to the new SCMI Perf interface based on protocol handles and common devm_get_ops(). Signed-off-by: Cristian Marussi --- drivers/cpufreq/scmi-cpufreq.c | 35 ++++++++++++++++++---------------- 1 file changed, 19 insertions(+), 16 deletions(-) diff --git a/drivers/cpufreq/scmi-cpufreq.c b/drivers/cpufreq/scmi-cpufreq.c index dfd87752f054..554c8579ef57 100644 --- a/drivers/cpufreq/scmi-cpufreq.c +++ b/drivers/cpufreq/scmi-cpufreq.c @@ -25,17 +25,17 @@ struct scmi_data { struct device *cpu_dev; }; -static const struct scmi_handle *handle; +static struct scmi_protocol_handle *ph; +static const struct scmi_perf_proto_ops *perf_ops; static unsigned int scmi_cpufreq_get_rate(unsigned int cpu) { struct cpufreq_policy *policy = cpufreq_cpu_get_raw(cpu); - const struct scmi_perf_ops *perf_ops = handle->perf_ops; struct scmi_data *priv = policy->driver_data; unsigned long rate; int ret; - ret = perf_ops->freq_get(handle, priv->domain_id, &rate, false); + ret = perf_ops->freq_get(ph, priv->domain_id, &rate, false); if (ret) return 0; return rate / 1000; @@ -50,19 +50,17 @@ static int scmi_cpufreq_set_target(struct cpufreq_policy *policy, unsigned int index) { struct scmi_data *priv = policy->driver_data; - const struct scmi_perf_ops *perf_ops = handle->perf_ops; u64 freq = policy->freq_table[index].frequency; - return perf_ops->freq_set(handle, priv->domain_id, freq * 1000, false); + return perf_ops->freq_set(ph, priv->domain_id, freq * 1000, false); } static unsigned int scmi_cpufreq_fast_switch(struct cpufreq_policy *policy, unsigned int target_freq) { struct scmi_data *priv = policy->driver_data; - const struct scmi_perf_ops *perf_ops = handle->perf_ops; - if (!perf_ops->freq_set(handle, priv->domain_id, + if (!perf_ops->freq_set(ph, priv->domain_id, target_freq * 1000, true)) return target_freq; @@ -75,7 +73,7 @@ scmi_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask) int cpu, domain, tdomain; struct device *tcpu_dev; - domain = handle->perf_ops->device_domain_id(cpu_dev); + domain = perf_ops->device_domain_id(cpu_dev); if (domain < 0) return domain; @@ -87,7 +85,7 @@ scmi_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask) if (!tcpu_dev) continue; - tdomain = handle->perf_ops->device_domain_id(tcpu_dev); + tdomain = perf_ops->device_domain_id(tcpu_dev); if (tdomain == domain) cpumask_set_cpu(cpu, cpumask); } @@ -102,13 +100,13 @@ scmi_get_cpu_power(unsigned long *power, unsigned long *KHz, unsigned long Hz; int ret, domain; - domain = handle->perf_ops->device_domain_id(cpu_dev); + domain = perf_ops->device_domain_id(cpu_dev); if (domain < 0) return domain; /* Get the power cost of the performance domain. */ Hz = *KHz * 1000; - ret = handle->perf_ops->est_power_get(handle, domain, &Hz, power); + ret = perf_ops->est_power_get(ph, domain, &Hz, power); if (ret) return ret; @@ -133,7 +131,7 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy) return -ENODEV; } - ret = handle->perf_ops->device_opps_add(handle, cpu_dev); + ret = perf_ops->device_opps_add(ph, cpu_dev); if (ret) { dev_warn(cpu_dev, "failed to add opps to the device\n"); return ret; @@ -172,7 +170,7 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy) } priv->cpu_dev = cpu_dev; - priv->domain_id = handle->perf_ops->device_domain_id(cpu_dev); + priv->domain_id = perf_ops->device_domain_id(cpu_dev); policy->driver_data = priv; policy->freq_table = freq_table; @@ -180,14 +178,14 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy) /* SCMI allows DVFS request for any domain from any CPU */ policy->dvfs_possible_from_any_cpu = true; - latency = handle->perf_ops->transition_latency_get(handle, cpu_dev); + latency = perf_ops->transition_latency_get(ph, cpu_dev); if (!latency) latency = CPUFREQ_ETERNAL; policy->cpuinfo.transition_latency = latency; policy->fast_switch_possible = - handle->perf_ops->fast_switch_possible(handle, cpu_dev); + perf_ops->fast_switch_possible(ph, cpu_dev); em_dev_register_perf_domain(cpu_dev, nr_opp, &em_cb, policy->cpus, false); @@ -231,12 +229,17 @@ static int scmi_cpufreq_probe(struct scmi_device *sdev) { int ret; struct device *dev = &sdev->dev; + const struct scmi_handle *handle; handle = sdev->handle; - if (!handle || !handle->perf_ops) + if (!handle) return -ENODEV; + perf_ops = handle->devm_get_ops(sdev, SCMI_PROTOCOL_PERF, &ph); + if (IS_ERR(perf_ops)) + return PTR_ERR(perf_ops); + #ifdef CONFIG_COMMON_CLK /* dummy clock provider as needed by OPP if clocks property is used */ if (of_find_property(dev->of_node, "#clock-cells", NULL))