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>
50 priv = policy->driver_data; in scmi_cpufreq_get_rate()
52 ret = perf_ops->freq_get(ph, priv->domain_id, &rate, false); in scmi_cpufreq_get_rate()
59 * perf_ops->freq_set is not a synchronous, the actual OPP change will
66 struct scmi_data *priv = policy->driver_data; in scmi_cpufreq_set_target()
67 u64 freq = policy->freq_table[index].frequency; in scmi_cpufreq_set_target() local
69 return perf_ops->freq_set(ph, priv->domain_id, freq * 1000, false); in scmi_cpufreq_set_target()
75 struct scmi_data *priv = policy->driver_data; in scmi_cpufreq_fast_switch()
76 unsigned long freq = target_freq; in scmi_cpufreq_fast_switch() local
78 if (!perf_ops->freq_set(ph, priv->domain_id, freq * 1000, true)) in scmi_cpufreq_fast_switch()
86 struct device_node *np = cpu_dev->of_node; in scmi_cpu_domain_id()
90 if (of_parse_phandle_with_args(np, "clocks", "#clock-cells", 0, in scmi_cpu_domain_id()
92 /* Find the corresponding index for power-domain "perf". */ in scmi_cpu_domain_id()
93 index = of_property_match_string(np, "power-domain-names", in scmi_cpu_domain_id()
96 return -EINVAL; in scmi_cpu_domain_id()
98 if (of_parse_phandle_with_args(np, "power-domains", in scmi_cpu_domain_id()
99 "#power-domain-cells", index, in scmi_cpu_domain_id()
101 return -EINVAL; in scmi_cpu_domain_id()
108 scmi_get_sharing_cpus(struct device *cpu_dev, int domain, in scmi_get_sharing_cpus() argument
115 if (cpu == cpu_dev->id) in scmi_get_sharing_cpus()
123 if (tdomain == domain) in scmi_get_sharing_cpus()
134 enum scmi_power_scale power_scale = perf_ops->power_scale_get(ph); in scmi_get_cpu_power()
136 int ret, domain; in scmi_get_cpu_power() local
138 domain = scmi_cpu_domain_id(cpu_dev); in scmi_get_cpu_power()
139 if (domain < 0) in scmi_get_cpu_power()
140 return domain; in scmi_get_cpu_power()
142 /* Get the power cost of the performance domain. */ in scmi_get_cpu_power()
144 ret = perf_ops->est_power_get(ph, domain, &Hz, power); in scmi_get_cpu_power()
159 scmi_get_rate_limit(u32 domain, bool has_fast_switch) in scmi_get_rate_limit() argument
168 ret = perf_ops->fast_switch_rate_limit(ph, domain, in scmi_get_rate_limit()
174 ret = perf_ops->rate_limit_get(ph, domain, &rate_limit); in scmi_get_rate_limit()
188 limit_freq_khz = limit_notify->range_max_freq / HZ_PER_KHZ; in scmi_limit_notify_cb()
190 ret = freq_qos_update_request(&priv->limits_freq_req, limit_freq_khz); in scmi_limit_notify_cb()
192 pr_warn("failed to update freq constraint: %d\n", ret); in scmi_limit_notify_cb()
199 int ret, nr_opp, domain; in scmi_cpufreq_init() local
206 cpu_dev = get_cpu_device(policy->cpu); in scmi_cpufreq_init()
208 pr_err("failed to get cpu%d device\n", policy->cpu); in scmi_cpufreq_init()
209 return -ENODEV; in scmi_cpufreq_init()
212 domain = scmi_cpu_domain_id(cpu_dev); in scmi_cpufreq_init()
213 if (domain < 0) in scmi_cpufreq_init()
214 return domain; in scmi_cpufreq_init()
218 return -ENOMEM; in scmi_cpufreq_init()
220 if (!zalloc_cpumask_var(&priv->opp_shared_cpus, GFP_KERNEL)) { in scmi_cpufreq_init()
221 ret = -ENOMEM; in scmi_cpufreq_init()
226 ret = scmi_get_sharing_cpus(cpu_dev, domain, policy->cpus); in scmi_cpufreq_init()
235 * table and opp-shared. in scmi_cpufreq_init()
237 ret = dev_pm_opp_of_get_sharing_cpus(cpu_dev, priv->opp_shared_cpus); in scmi_cpufreq_init()
238 if (ret || cpumask_empty(priv->opp_shared_cpus)) { in scmi_cpufreq_init()
240 * Either opp-table is not set or no opp-shared was found. in scmi_cpufreq_init()
244 cpumask_copy(priv->opp_shared_cpus, policy->cpus); in scmi_cpufreq_init()
254 ret = perf_ops->device_opps_add(ph, cpu_dev, domain); in scmi_cpufreq_init()
265 ret = -ENODEV; in scmi_cpufreq_init()
269 ret = dev_pm_opp_set_sharing_cpus(cpu_dev, priv->opp_shared_cpus); in scmi_cpufreq_init()
277 priv->nr_opp = nr_opp; in scmi_cpufreq_init()
286 priv->cpu_dev = cpu_dev; in scmi_cpufreq_init()
287 priv->domain_id = domain; in scmi_cpufreq_init()
289 policy->driver_data = priv; in scmi_cpufreq_init()
290 policy->freq_table = freq_table; in scmi_cpufreq_init()
292 /* SCMI allows DVFS request for any domain from any CPU */ in scmi_cpufreq_init()
293 policy->dvfs_possible_from_any_cpu = true; in scmi_cpufreq_init()
295 latency = perf_ops->transition_latency_get(ph, domain); in scmi_cpufreq_init()
299 policy->cpuinfo.transition_latency = latency; in scmi_cpufreq_init()
301 policy->fast_switch_possible = in scmi_cpufreq_init()
302 perf_ops->fast_switch_possible(ph, domain); in scmi_cpufreq_init()
304 policy->transition_delay_us = in scmi_cpufreq_init()
305 scmi_get_rate_limit(domain, policy->fast_switch_possible); in scmi_cpufreq_init()
307 ret = freq_qos_add_request(&policy->constraints, &priv->limits_freq_req, FREQ_QOS_MAX, in scmi_cpufreq_init()
314 priv->limit_notify_nb.notifier_call = scmi_limit_notify_cb; in scmi_cpufreq_init()
315 ret = sdev->handle->notify_ops->event_notifier_register(sdev->handle, SCMI_PROTOCOL_PERF, in scmi_cpufreq_init()
317 &priv->domain_id, in scmi_cpufreq_init()
318 &priv->limit_notify_nb); in scmi_cpufreq_init()
320 dev_warn(&sdev->dev, in scmi_cpufreq_init()
321 "failed to register for limits change notifier for domain %d\n", in scmi_cpufreq_init()
322 priv->domain_id); in scmi_cpufreq_init()
332 free_cpumask_var(priv->opp_shared_cpus); in scmi_cpufreq_init()
342 struct scmi_data *priv = policy->driver_data; in scmi_cpufreq_exit()
345 sdev->handle->notify_ops->event_notifier_unregister(sdev->handle, SCMI_PROTOCOL_PERF, in scmi_cpufreq_exit()
347 &priv->domain_id, in scmi_cpufreq_exit()
348 &priv->limit_notify_nb); in scmi_cpufreq_exit()
349 freq_qos_remove_request(&priv->limits_freq_req); in scmi_cpufreq_exit()
350 dev_pm_opp_free_cpufreq_table(priv->cpu_dev, &policy->freq_table); in scmi_cpufreq_exit()
351 dev_pm_opp_remove_all_dynamic(priv->cpu_dev); in scmi_cpufreq_exit()
352 free_cpumask_var(priv->opp_shared_cpus); in scmi_cpufreq_exit()
359 enum scmi_power_scale power_scale = perf_ops->power_scale_get(ph); in scmi_cpufreq_register_em()
360 struct scmi_data *priv = policy->driver_data; in scmi_cpufreq_register_em()
366 * policy, some CPUs may still share their perf-domains, and a CPU from in scmi_cpufreq_register_em()
370 if (!priv->nr_opp) in scmi_cpufreq_register_em()
377 em_dev_register_perf_domain(get_cpu_device(policy->cpu), priv->nr_opp, in scmi_cpufreq_register_em()
378 &em_cb, priv->opp_shared_cpus, in scmi_cpufreq_register_em()
420 idx = of_property_match_string(cpu_np, "power-domain-names", "perf"); in scmi_dev_used_by_cpus()
421 np = of_parse_phandle(cpu_np, "power-domains", idx); in scmi_dev_used_by_cpus()
443 struct device *dev = &sdev->dev; in scmi_cpufreq_probe()
446 handle = sdev->handle; in scmi_cpufreq_probe()
449 return -ENODEV; in scmi_cpufreq_probe()
453 perf_ops = handle->devm_protocol_get(sdev, SCMI_PROTOCOL_PERF, &ph); in scmi_cpufreq_probe()
459 if (of_property_present(dev->of_node, "#clock-cells")) { in scmi_cpufreq_probe()
487 .name = "scmi-cpufreq",