From patchwork Thu Jul 13 14:17:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ulf Hansson X-Patchwork-Id: 702625 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 6662AC001B0 for ; Thu, 13 Jul 2023 14:18:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230365AbjGMOS2 (ORCPT ); Thu, 13 Jul 2023 10:18:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35646 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235312AbjGMOSR (ORCPT ); Thu, 13 Jul 2023 10:18:17 -0400 Received: from mail-lf1-x12b.google.com (mail-lf1-x12b.google.com [IPv6:2a00:1450:4864:20::12b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2997D1BE3 for ; Thu, 13 Jul 2023 07:18:16 -0700 (PDT) Received: by mail-lf1-x12b.google.com with SMTP id 2adb3069b0e04-4f122ff663eso1363114e87.2 for ; Thu, 13 Jul 2023 07:18:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1689257894; x=1691849894; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=edTXoMvhNuFH/nL1WC1npUwMJQVMfw3CQ3zP4/nOz8w=; b=nLEjBxXdgMUpb3KCbXWep74RoVZKaYfH4dDzOQsXLmnPx1pvm4cE+mXXPuVlMCc4y+ JukVUoe5asdozcZJ9n5eTiliyTycs/gBw5KlaRIlUvUCtWom4ZOytH4Rkqz/sOX7wRsw B7IeDJQfMhJgpa3GJuaY36TIUqk9Le01rwNaBfOQoBDnLxFtCZbGJxbi9+eyMgVz3UxW edrB4pvXYeyzq9KuIuCv3+hjV/3lJUqhWrv8y8niuEh/WkestWJquQ5XIhHA53ITvgVW RhnM+napAinuinQ4dwHLwukQGtoySCnpLr0MPODoar97MQq7rUZpf2ErQKpgwy9x5uOv Xwsg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689257894; x=1691849894; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=edTXoMvhNuFH/nL1WC1npUwMJQVMfw3CQ3zP4/nOz8w=; b=DLg8qWKRqp6AzhQFpPuunly7bvGyMoblOavFX5zm450J0jUjWpIFNgS45T40xVrIAC Q/ih4g55rNUMg00VYkDH+bFYS1hRxBX0vhOfoyIINDCOXHTdvfndiGWoo5AZ9/B01YAP fS9fGn+m8KwMNrowBiTwpof68TqiZs/d8vCzbXIf/fM3QRyGljFCe+VUHS3MRm1GT22V hfiXnsg4kpfkDF99j8MKkEPRP2KJZr7UfAZdsFl+/WaTQPfbFjYTmqjCtPOvREjoCrEi z2M9l9nelwhMTaMCEpFKevPAzG/OxOmy5aggZIWuKSIEC1/EVMevVU3tLxikLNuPAMKP V38A== X-Gm-Message-State: ABy/qLbY6mNmPRdlwFSOw4x/w2WvVrP1rMiCgt9+y9KlvxaloDne5kqo V3pm//xZNs59T/dn9E7YOLyc9Q== X-Google-Smtp-Source: APBJJlFNXJ3at9poSaiKDKcrBrUCfItFY+Wqxh9WZOMaNxZfhW5W3LRXVUiRnEjrC1On/aEC0k79YA== X-Received: by 2002:ac2:5a50:0:b0:4fb:8de9:ac0e with SMTP id r16-20020ac25a50000000b004fb8de9ac0emr1310574lfn.1.1689257894500; Thu, 13 Jul 2023 07:18:14 -0700 (PDT) Received: from uffe-tuxpro14.. (h-94-254-63-18.NA.cust.bahnhof.se. [94.254.63.18]) by smtp.gmail.com with ESMTPSA id w28-20020ac2599c000000b004fb759964a9sm1132426lfn.168.2023.07.13.07.18.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Jul 2023 07:18:13 -0700 (PDT) From: Ulf Hansson To: Sudeep Holla , Cristian Marussi , Viresh Kumar , Nishanth Menon , Stephen Boyd Cc: Nikunj Kela , Prasad Sodagudi , Alexandre Torgue , Ulf Hansson , linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 04/11] firmware: arm_scmi: Align perf ops to use domain-id as in-parameter Date: Thu, 13 Jul 2023 16:17:31 +0200 Message-Id: <20230713141738.23970-5-ulf.hansson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230713141738.23970-1-ulf.hansson@linaro.org> References: <20230713141738.23970-1-ulf.hansson@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Most scmi_perf_proto_ops are already using an "u32 domain" as an in-parameter to indicate what performance domain we shall operate upon. However, some of the ops are using a "struct device *dev", which means that an additional OF parsing is needed each time the perf ops gets called, to find the corresponding domain-id. To avoid the above, but also to make the code more consistent, let's replace the in-parameter "struct device *dev" with an "u32 domain". Note that, this requires us to make some corresponding changes to the scmi cpufreq driver, so let's do that too. Signed-off-by: Ulf Hansson --- Changes in v2: - None. --- drivers/cpufreq/scmi-cpufreq.c | 14 +++++++++----- drivers/firmware/arm_scmi/perf.c | 18 +++++------------- include/linux/scmi_protocol.h | 6 +++--- 3 files changed, 17 insertions(+), 21 deletions(-) diff --git a/drivers/cpufreq/scmi-cpufreq.c b/drivers/cpufreq/scmi-cpufreq.c index 7d05d48c0337..125e8a8421fb 100644 --- a/drivers/cpufreq/scmi-cpufreq.c +++ b/drivers/cpufreq/scmi-cpufreq.c @@ -137,7 +137,7 @@ scmi_get_cpu_power(struct device *cpu_dev, unsigned long *power, static int scmi_cpufreq_init(struct cpufreq_policy *policy) { - int ret, nr_opp; + int ret, nr_opp, domain; unsigned int latency; struct device *cpu_dev; struct scmi_data *priv; @@ -149,6 +149,10 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy) return -ENODEV; } + domain = scmi_cpu_domain_id(cpu_dev); + if (domain < 0) + return domain; + priv = kzalloc(sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; @@ -187,7 +191,7 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy) */ nr_opp = dev_pm_opp_get_opp_count(cpu_dev); if (nr_opp <= 0) { - ret = perf_ops->device_opps_add(ph, cpu_dev); + ret = perf_ops->device_opps_add(ph, cpu_dev, domain); if (ret) { dev_warn(cpu_dev, "failed to add opps to the device\n"); goto out_free_cpumask; @@ -220,7 +224,7 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy) } priv->cpu_dev = cpu_dev; - priv->domain_id = scmi_cpu_domain_id(cpu_dev); + priv->domain_id = domain; policy->driver_data = priv; policy->freq_table = freq_table; @@ -228,14 +232,14 @@ 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 = perf_ops->transition_latency_get(ph, cpu_dev); + latency = perf_ops->transition_latency_get(ph, domain); if (!latency) latency = CPUFREQ_ETERNAL; policy->cpuinfo.transition_latency = latency; policy->fast_switch_possible = - perf_ops->fast_switch_possible(ph, cpu_dev); + perf_ops->fast_switch_possible(ph, domain); return 0; diff --git a/drivers/firmware/arm_scmi/perf.c b/drivers/firmware/arm_scmi/perf.c index f3ea96dd845c..6046c0eb5959 100644 --- a/drivers/firmware/arm_scmi/perf.c +++ b/drivers/firmware/arm_scmi/perf.c @@ -585,18 +585,14 @@ static int scmi_dev_domain_id(struct device *dev) } static int scmi_dvfs_device_opps_add(const struct scmi_protocol_handle *ph, - struct device *dev) + struct device *dev, u32 domain) { - int idx, ret, domain; + int idx, ret; unsigned long freq; struct scmi_opp *opp; struct perf_dom_info *dom; struct scmi_perf_info *pi = ph->get_priv(ph); - domain = scmi_dev_domain_id(dev); - if (domain < 0) - return domain; - dom = pi->dom_info + domain; for (opp = dom->opp, idx = 0; idx < dom->opp_count; idx++, opp++) { @@ -618,14 +614,10 @@ static int scmi_dvfs_device_opps_add(const struct scmi_protocol_handle *ph, static int scmi_dvfs_transition_latency_get(const struct scmi_protocol_handle *ph, - struct device *dev) + u32 domain) { struct perf_dom_info *dom; struct scmi_perf_info *pi = ph->get_priv(ph); - int domain = scmi_dev_domain_id(dev); - - if (domain < 0) - return domain; dom = pi->dom_info + domain; /* uS to nS */ @@ -685,12 +677,12 @@ static int scmi_dvfs_est_power_get(const struct scmi_protocol_handle *ph, } static bool scmi_fast_switch_possible(const struct scmi_protocol_handle *ph, - struct device *dev) + u32 domain) { struct perf_dom_info *dom; struct scmi_perf_info *pi = ph->get_priv(ph); - dom = pi->dom_info + scmi_dev_domain_id(dev); + dom = pi->dom_info + domain; return dom->fc_info && dom->fc_info[PERF_FC_LEVEL].set_addr; } diff --git a/include/linux/scmi_protocol.h b/include/linux/scmi_protocol.h index ed032fe83c28..71072fe8ccc9 100644 --- a/include/linux/scmi_protocol.h +++ b/include/linux/scmi_protocol.h @@ -140,9 +140,9 @@ struct scmi_perf_proto_ops { u32 *level, bool poll); int (*device_domain_id)(struct device *dev); int (*transition_latency_get)(const struct scmi_protocol_handle *ph, - struct device *dev); + u32 domain); int (*device_opps_add)(const struct scmi_protocol_handle *ph, - struct device *dev); + struct device *dev, u32 domain); int (*freq_set)(const struct scmi_protocol_handle *ph, u32 domain, unsigned long rate, bool poll); int (*freq_get)(const struct scmi_protocol_handle *ph, u32 domain, @@ -150,7 +150,7 @@ struct scmi_perf_proto_ops { int (*est_power_get)(const struct scmi_protocol_handle *ph, u32 domain, unsigned long *rate, unsigned long *power); bool (*fast_switch_possible)(const struct scmi_protocol_handle *ph, - struct device *dev); + u32 domain); enum scmi_power_scale (*power_scale_get)(const struct scmi_protocol_handle *ph); };