Lines Matching +full:freq +full:- +full:domain
1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 2018-2021 ARM Ltd.
11 #include <linux/clk-provider.h>
37 struct scmi_data *priv = policy->driver_data; in scmi_cpufreq_get_rate()
41 ret = perf_ops->freq_get(ph, priv->domain_id, &rate, false); in scmi_cpufreq_get_rate()
48 * perf_ops->freq_set is not a synchronous, the actual OPP change will
55 struct scmi_data *priv = policy->driver_data; in scmi_cpufreq_set_target()
56 u64 freq = policy->freq_table[index].frequency; in scmi_cpufreq_set_target() local
58 return perf_ops->freq_set(ph, priv->domain_id, freq * 1000, false); in scmi_cpufreq_set_target()
64 struct scmi_data *priv = policy->driver_data; in scmi_cpufreq_fast_switch()
66 if (!perf_ops->freq_set(ph, priv->domain_id, in scmi_cpufreq_fast_switch()
75 struct device_node *np = cpu_dev->of_node; in scmi_cpu_domain_id()
79 if (of_parse_phandle_with_args(np, "clocks", "#clock-cells", 0, in scmi_cpu_domain_id()
81 /* Find the corresponding index for power-domain "perf". */ in scmi_cpu_domain_id()
82 index = of_property_match_string(np, "power-domain-names", in scmi_cpu_domain_id()
85 return -EINVAL; in scmi_cpu_domain_id()
87 if (of_parse_phandle_with_args(np, "power-domains", in scmi_cpu_domain_id()
88 "#power-domain-cells", index, in scmi_cpu_domain_id()
90 return -EINVAL; in scmi_cpu_domain_id()
97 scmi_get_sharing_cpus(struct device *cpu_dev, int domain, in scmi_get_sharing_cpus() argument
104 if (cpu == cpu_dev->id) in scmi_get_sharing_cpus()
112 if (tdomain == domain) in scmi_get_sharing_cpus()
123 enum scmi_power_scale power_scale = perf_ops->power_scale_get(ph); in scmi_get_cpu_power()
125 int ret, domain; in scmi_get_cpu_power() local
127 domain = scmi_cpu_domain_id(cpu_dev); in scmi_get_cpu_power()
128 if (domain < 0) in scmi_get_cpu_power()
129 return domain; in scmi_get_cpu_power()
131 /* Get the power cost of the performance domain. */ in scmi_get_cpu_power()
133 ret = perf_ops->est_power_get(ph, domain, &Hz, power); in scmi_get_cpu_power()
149 int ret, nr_opp, domain; in scmi_cpufreq_init() local
155 cpu_dev = get_cpu_device(policy->cpu); in scmi_cpufreq_init()
157 pr_err("failed to get cpu%d device\n", policy->cpu); in scmi_cpufreq_init()
158 return -ENODEV; in scmi_cpufreq_init()
161 domain = scmi_cpu_domain_id(cpu_dev); in scmi_cpufreq_init()
162 if (domain < 0) in scmi_cpufreq_init()
163 return domain; in scmi_cpufreq_init()
167 return -ENOMEM; in scmi_cpufreq_init()
169 if (!zalloc_cpumask_var(&priv->opp_shared_cpus, GFP_KERNEL)) { in scmi_cpufreq_init()
170 ret = -ENOMEM; in scmi_cpufreq_init()
175 ret = scmi_get_sharing_cpus(cpu_dev, domain, policy->cpus); in scmi_cpufreq_init()
184 * table and opp-shared. in scmi_cpufreq_init()
186 ret = dev_pm_opp_of_get_sharing_cpus(cpu_dev, priv->opp_shared_cpus); in scmi_cpufreq_init()
187 if (ret || cpumask_empty(priv->opp_shared_cpus)) { in scmi_cpufreq_init()
189 * Either opp-table is not set or no opp-shared was found. in scmi_cpufreq_init()
193 cpumask_copy(priv->opp_shared_cpus, policy->cpus); in scmi_cpufreq_init()
203 ret = perf_ops->device_opps_add(ph, cpu_dev, domain); in scmi_cpufreq_init()
214 ret = -ENODEV; in scmi_cpufreq_init()
218 ret = dev_pm_opp_set_sharing_cpus(cpu_dev, priv->opp_shared_cpus); in scmi_cpufreq_init()
226 priv->nr_opp = nr_opp; in scmi_cpufreq_init()
235 priv->cpu_dev = cpu_dev; in scmi_cpufreq_init()
236 priv->domain_id = domain; in scmi_cpufreq_init()
238 policy->driver_data = priv; in scmi_cpufreq_init()
239 policy->freq_table = freq_table; in scmi_cpufreq_init()
241 /* SCMI allows DVFS request for any domain from any CPU */ in scmi_cpufreq_init()
242 policy->dvfs_possible_from_any_cpu = true; in scmi_cpufreq_init()
244 latency = perf_ops->transition_latency_get(ph, domain); in scmi_cpufreq_init()
248 policy->cpuinfo.transition_latency = latency; in scmi_cpufreq_init()
250 policy->fast_switch_possible = in scmi_cpufreq_init()
251 perf_ops->fast_switch_possible(ph, domain); in scmi_cpufreq_init()
259 free_cpumask_var(priv->opp_shared_cpus); in scmi_cpufreq_init()
269 struct scmi_data *priv = policy->driver_data; in scmi_cpufreq_exit()
271 dev_pm_opp_free_cpufreq_table(priv->cpu_dev, &policy->freq_table); in scmi_cpufreq_exit()
272 dev_pm_opp_remove_all_dynamic(priv->cpu_dev); in scmi_cpufreq_exit()
273 free_cpumask_var(priv->opp_shared_cpus); in scmi_cpufreq_exit()
282 enum scmi_power_scale power_scale = perf_ops->power_scale_get(ph); in scmi_cpufreq_register_em()
283 struct scmi_data *priv = policy->driver_data; in scmi_cpufreq_register_em()
289 * policy, some CPUs may still share their perf-domains, and a CPU from in scmi_cpufreq_register_em()
293 if (!priv->nr_opp) in scmi_cpufreq_register_em()
300 em_dev_register_perf_domain(get_cpu_device(policy->cpu), priv->nr_opp, in scmi_cpufreq_register_em()
301 &em_cb, priv->opp_shared_cpus, in scmi_cpufreq_register_em()
323 struct device *dev = &sdev->dev; in scmi_cpufreq_probe()
326 handle = sdev->handle; in scmi_cpufreq_probe()
329 return -ENODEV; in scmi_cpufreq_probe()
331 perf_ops = handle->devm_protocol_get(sdev, SCMI_PROTOCOL_PERF, &ph); in scmi_cpufreq_probe()
337 if (of_property_present(dev->of_node, "#clock-cells")) { in scmi_cpufreq_probe()
365 .name = "scmi-cpufreq",