Lines Matching +full:performance +full:- +full:domain
1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 2018-2021 ARM Ltd.
11 #include <linux/clk-provider.h>
41 struct scmi_data *priv = policy->driver_data; in scmi_cpufreq_get_rate()
45 ret = perf_ops->freq_get(ph, priv->domain_id, &rate, false); in scmi_cpufreq_get_rate()
52 * perf_ops->freq_set is not a synchronous, the actual OPP change will
59 struct scmi_data *priv = policy->driver_data; in scmi_cpufreq_set_target()
60 u64 freq = policy->freq_table[index].frequency; in scmi_cpufreq_set_target()
62 return perf_ops->freq_set(ph, priv->domain_id, freq * 1000, false); in scmi_cpufreq_set_target()
68 struct scmi_data *priv = policy->driver_data; in scmi_cpufreq_fast_switch()
71 if (!perf_ops->freq_set(ph, priv->domain_id, freq * 1000, true)) in scmi_cpufreq_fast_switch()
79 struct device_node *np = cpu_dev->of_node; in scmi_cpu_domain_id()
83 if (of_parse_phandle_with_args(np, "clocks", "#clock-cells", 0, in scmi_cpu_domain_id()
85 /* Find the corresponding index for power-domain "perf". */ in scmi_cpu_domain_id()
86 index = of_property_match_string(np, "power-domain-names", in scmi_cpu_domain_id()
89 return -EINVAL; in scmi_cpu_domain_id()
91 if (of_parse_phandle_with_args(np, "power-domains", in scmi_cpu_domain_id()
92 "#power-domain-cells", index, in scmi_cpu_domain_id()
94 return -EINVAL; in scmi_cpu_domain_id()
101 scmi_get_sharing_cpus(struct device *cpu_dev, int domain, in scmi_get_sharing_cpus() argument
108 if (cpu == cpu_dev->id) in scmi_get_sharing_cpus()
116 if (tdomain == domain) in scmi_get_sharing_cpus()
127 enum scmi_power_scale power_scale = perf_ops->power_scale_get(ph); in scmi_get_cpu_power()
129 int ret, domain; in scmi_get_cpu_power() local
131 domain = scmi_cpu_domain_id(cpu_dev); in scmi_get_cpu_power()
132 if (domain < 0) in scmi_get_cpu_power()
133 return domain; in scmi_get_cpu_power()
135 /* Get the power cost of the performance domain. */ in scmi_get_cpu_power()
137 ret = perf_ops->est_power_get(ph, domain, &Hz, power); in scmi_get_cpu_power()
152 scmi_get_rate_limit(u32 domain, bool has_fast_switch) in scmi_get_rate_limit() argument
161 ret = perf_ops->fast_switch_rate_limit(ph, domain, in scmi_get_rate_limit()
167 ret = perf_ops->rate_limit_get(ph, domain, &rate_limit); in scmi_get_rate_limit()
187 limit_freq_khz = limit_notify->range_max_freq / HZ_PER_KHZ; in scmi_limit_notify_cb()
189 ret = freq_qos_update_request(&priv->limits_freq_req, limit_freq_khz); in scmi_limit_notify_cb()
198 int ret, nr_opp, domain; in scmi_cpufreq_init() local
205 cpu_dev = get_cpu_device(policy->cpu); in scmi_cpufreq_init()
207 pr_err("failed to get cpu%d device\n", policy->cpu); in scmi_cpufreq_init()
208 return -ENODEV; in scmi_cpufreq_init()
211 domain = scmi_cpu_domain_id(cpu_dev); in scmi_cpufreq_init()
212 if (domain < 0) in scmi_cpufreq_init()
213 return domain; in scmi_cpufreq_init()
217 return -ENOMEM; in scmi_cpufreq_init()
219 if (!zalloc_cpumask_var(&priv->opp_shared_cpus, GFP_KERNEL)) { in scmi_cpufreq_init()
220 ret = -ENOMEM; in scmi_cpufreq_init()
224 /* Obtain CPUs that share SCMI performance controls */ in scmi_cpufreq_init()
225 ret = scmi_get_sharing_cpus(cpu_dev, domain, policy->cpus); in scmi_cpufreq_init()
232 * Obtain CPUs that share performance levels. in scmi_cpufreq_init()
234 * table and opp-shared. in scmi_cpufreq_init()
236 ret = dev_pm_opp_of_get_sharing_cpus(cpu_dev, priv->opp_shared_cpus); in scmi_cpufreq_init()
237 if (ret || cpumask_empty(priv->opp_shared_cpus)) { in scmi_cpufreq_init()
239 * Either opp-table is not set or no opp-shared was found. in scmi_cpufreq_init()
243 cpumask_copy(priv->opp_shared_cpus, policy->cpus); in scmi_cpufreq_init()
253 ret = perf_ops->device_opps_add(ph, cpu_dev, domain); in scmi_cpufreq_init()
264 ret = -ENODEV; in scmi_cpufreq_init()
268 ret = dev_pm_opp_set_sharing_cpus(cpu_dev, priv->opp_shared_cpus); in scmi_cpufreq_init()
276 priv->nr_opp = nr_opp; in scmi_cpufreq_init()
285 priv->cpu_dev = cpu_dev; in scmi_cpufreq_init()
286 priv->domain_id = domain; in scmi_cpufreq_init()
288 policy->driver_data = priv; in scmi_cpufreq_init()
289 policy->freq_table = freq_table; in scmi_cpufreq_init()
291 /* SCMI allows DVFS request for any domain from any CPU */ in scmi_cpufreq_init()
292 policy->dvfs_possible_from_any_cpu = true; in scmi_cpufreq_init()
294 latency = perf_ops->transition_latency_get(ph, domain); in scmi_cpufreq_init()
298 policy->cpuinfo.transition_latency = latency; in scmi_cpufreq_init()
300 policy->fast_switch_possible = in scmi_cpufreq_init()
301 perf_ops->fast_switch_possible(ph, domain); in scmi_cpufreq_init()
303 policy->transition_delay_us = in scmi_cpufreq_init()
304 scmi_get_rate_limit(domain, policy->fast_switch_possible); in scmi_cpufreq_init()
317 ret = freq_qos_add_request(&policy->constraints, &priv->limits_freq_req, FREQ_QOS_MAX, in scmi_cpufreq_init()
324 priv->limit_notify_nb.notifier_call = scmi_limit_notify_cb; in scmi_cpufreq_init()
325 ret = sdev->handle->notify_ops->event_notifier_register(sdev->handle, SCMI_PROTOCOL_PERF, in scmi_cpufreq_init()
327 &priv->domain_id, in scmi_cpufreq_init()
328 &priv->limit_notify_nb); in scmi_cpufreq_init()
330 dev_warn(&sdev->dev, in scmi_cpufreq_init()
331 "failed to register for limits change notifier for domain %d\n", in scmi_cpufreq_init()
332 priv->domain_id); in scmi_cpufreq_init()
342 free_cpumask_var(priv->opp_shared_cpus); in scmi_cpufreq_init()
352 struct scmi_data *priv = policy->driver_data; in scmi_cpufreq_exit()
355 sdev->handle->notify_ops->event_notifier_unregister(sdev->handle, SCMI_PROTOCOL_PERF, in scmi_cpufreq_exit()
357 &priv->domain_id, in scmi_cpufreq_exit()
358 &priv->limit_notify_nb); in scmi_cpufreq_exit()
359 freq_qos_remove_request(&priv->limits_freq_req); in scmi_cpufreq_exit()
360 dev_pm_opp_free_cpufreq_table(priv->cpu_dev, &policy->freq_table); in scmi_cpufreq_exit()
361 dev_pm_opp_remove_all_dynamic(priv->cpu_dev); in scmi_cpufreq_exit()
362 free_cpumask_var(priv->opp_shared_cpus); in scmi_cpufreq_exit()
369 enum scmi_power_scale power_scale = perf_ops->power_scale_get(ph); in scmi_cpufreq_register_em()
370 struct scmi_data *priv = policy->driver_data; in scmi_cpufreq_register_em()
376 * policy, some CPUs may still share their perf-domains, and a CPU from in scmi_cpufreq_register_em()
380 if (!priv->nr_opp) in scmi_cpufreq_register_em()
387 em_dev_register_perf_domain(get_cpu_device(policy->cpu), priv->nr_opp, in scmi_cpufreq_register_em()
388 &em_cb, priv->opp_shared_cpus, in scmi_cpufreq_register_em()
410 struct device *dev = &sdev->dev; in scmi_cpufreq_probe()
413 handle = sdev->handle; in scmi_cpufreq_probe()
416 return -ENODEV; in scmi_cpufreq_probe()
420 perf_ops = handle->devm_protocol_get(sdev, SCMI_PROTOCOL_PERF, &ph); in scmi_cpufreq_probe()
426 if (of_property_present(dev->of_node, "#clock-cells")) { in scmi_cpufreq_probe()
454 .name = "scmi-cpufreq",