Lines Matching full:policy
82 static unsigned int __cpufreq_get(struct cpufreq_policy *policy);
83 static int cpufreq_init_governor(struct cpufreq_policy *policy);
84 static void cpufreq_exit_governor(struct cpufreq_policy *policy);
85 static void cpufreq_governor_limits(struct cpufreq_policy *policy);
86 static int cpufreq_set_policy(struct cpufreq_policy *policy,
92 * Two notifier lists: the "policy" list is involved in the
93 * validation process for a new CPU frequency policy; the
120 struct kobject *get_governor_parent_kobj(struct cpufreq_policy *policy) in get_governor_parent_kobj() argument
123 return &policy->kobj; in get_governor_parent_kobj()
172 * - policy->cpus with all possible CPUs
174 void cpufreq_generic_init(struct cpufreq_policy *policy, in cpufreq_generic_init() argument
178 policy->freq_table = table; in cpufreq_generic_init()
179 policy->cpuinfo.transition_latency = transition_latency; in cpufreq_generic_init()
185 cpumask_setall(policy->cpus); in cpufreq_generic_init()
191 struct cpufreq_policy *policy = per_cpu(cpufreq_cpu_data, cpu); in cpufreq_cpu_get_raw() local
193 return policy && cpumask_test_cpu(cpu, policy->cpus) ? policy : NULL; in cpufreq_cpu_get_raw()
199 struct cpufreq_policy *policy = cpufreq_cpu_get_raw(cpu); in cpufreq_generic_get() local
201 if (!policy || IS_ERR(policy->clk)) { in cpufreq_generic_get()
203 __func__, policy ? "clk" : "policy", cpu); in cpufreq_generic_get()
207 return clk_get_rate(policy->clk) / 1000; in cpufreq_generic_get()
212 * cpufreq_cpu_get - Return policy for a CPU and mark it as busy.
213 * @cpu: CPU to find the policy for.
215 * Call cpufreq_cpu_get_raw() to obtain a cpufreq policy for @cpu and increment
216 * the kobject reference counter of that policy. Return a valid policy on
219 * The policy returned by this function has to be released with the help of
224 struct cpufreq_policy *policy = NULL; in cpufreq_cpu_get() local
235 policy = cpufreq_cpu_get_raw(cpu); in cpufreq_cpu_get()
236 if (policy) in cpufreq_cpu_get()
237 kobject_get(&policy->kobj); in cpufreq_cpu_get()
242 return policy; in cpufreq_cpu_get()
247 * cpufreq_cpu_put - Decrement kobject usage counter for cpufreq policy.
248 * @policy: cpufreq policy returned by cpufreq_cpu_get().
250 void cpufreq_cpu_put(struct cpufreq_policy *policy) in cpufreq_cpu_put() argument
252 kobject_put(&policy->kobj); in cpufreq_cpu_put()
257 * cpufreq_cpu_release - Unlock a policy and decrement its usage counter.
258 * @policy: cpufreq policy returned by cpufreq_cpu_acquire().
260 void cpufreq_cpu_release(struct cpufreq_policy *policy) in cpufreq_cpu_release() argument
262 if (WARN_ON(!policy)) in cpufreq_cpu_release()
265 lockdep_assert_held(&policy->rwsem); in cpufreq_cpu_release()
267 up_write(&policy->rwsem); in cpufreq_cpu_release()
269 cpufreq_cpu_put(policy); in cpufreq_cpu_release()
273 * cpufreq_cpu_acquire - Find policy for a CPU, mark it as busy and lock it.
274 * @cpu: CPU to find the policy for.
276 * Call cpufreq_cpu_get() to get a reference on the cpufreq policy for @cpu and
277 * if the policy returned by it is not NULL, acquire its rwsem for writing.
278 * Return the policy if it is active or release it and return NULL otherwise.
280 * The policy returned by this function has to be released with the help of
286 struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); in cpufreq_cpu_acquire() local
288 if (!policy) in cpufreq_cpu_acquire()
291 down_write(&policy->rwsem); in cpufreq_cpu_acquire()
293 if (policy_is_inactive(policy)) { in cpufreq_cpu_acquire()
294 cpufreq_cpu_release(policy); in cpufreq_cpu_acquire()
298 return policy; in cpufreq_cpu_acquire()
341 * @policy: cpufreq policy to enable fast frequency switching for.
349 static void cpufreq_notify_transition(struct cpufreq_policy *policy, in cpufreq_notify_transition() argument
360 freqs->policy = policy; in cpufreq_notify_transition()
372 if (policy->cur && policy->cur != freqs->old) { in cpufreq_notify_transition()
374 freqs->old, policy->cur); in cpufreq_notify_transition()
375 freqs->old = policy->cur; in cpufreq_notify_transition()
387 cpumask_pr_args(policy->cpus)); in cpufreq_notify_transition()
389 for_each_cpu(cpu, policy->cpus) in cpufreq_notify_transition()
395 cpufreq_stats_record_transition(policy, freqs->new); in cpufreq_notify_transition()
396 policy->cur = freqs->new; in cpufreq_notify_transition()
401 static void cpufreq_notify_post_transition(struct cpufreq_policy *policy, in cpufreq_notify_post_transition() argument
404 cpufreq_notify_transition(policy, freqs, CPUFREQ_POSTCHANGE); in cpufreq_notify_post_transition()
409 cpufreq_notify_transition(policy, freqs, CPUFREQ_PRECHANGE); in cpufreq_notify_post_transition()
410 cpufreq_notify_transition(policy, freqs, CPUFREQ_POSTCHANGE); in cpufreq_notify_post_transition()
413 void cpufreq_freq_transition_begin(struct cpufreq_policy *policy, in cpufreq_freq_transition_begin() argument
426 && current == policy->transition_task); in cpufreq_freq_transition_begin()
429 wait_event(policy->transition_wait, !policy->transition_ongoing); in cpufreq_freq_transition_begin()
431 spin_lock(&policy->transition_lock); in cpufreq_freq_transition_begin()
433 if (unlikely(policy->transition_ongoing)) { in cpufreq_freq_transition_begin()
434 spin_unlock(&policy->transition_lock); in cpufreq_freq_transition_begin()
438 policy->transition_ongoing = true; in cpufreq_freq_transition_begin()
439 policy->transition_task = current; in cpufreq_freq_transition_begin()
441 spin_unlock(&policy->transition_lock); in cpufreq_freq_transition_begin()
443 cpufreq_notify_transition(policy, freqs, CPUFREQ_PRECHANGE); in cpufreq_freq_transition_begin()
447 void cpufreq_freq_transition_end(struct cpufreq_policy *policy, in cpufreq_freq_transition_end() argument
450 if (WARN_ON(!policy->transition_ongoing)) in cpufreq_freq_transition_end()
453 cpufreq_notify_post_transition(policy, freqs, transition_failed); in cpufreq_freq_transition_end()
455 arch_set_freq_scale(policy->related_cpus, in cpufreq_freq_transition_end()
456 policy->cur, in cpufreq_freq_transition_end()
457 policy->cpuinfo.max_freq); in cpufreq_freq_transition_end()
459 spin_lock(&policy->transition_lock); in cpufreq_freq_transition_end()
460 policy->transition_ongoing = false; in cpufreq_freq_transition_end()
461 policy->transition_task = NULL; in cpufreq_freq_transition_end()
462 spin_unlock(&policy->transition_lock); in cpufreq_freq_transition_end()
464 wake_up(&policy->transition_wait); in cpufreq_freq_transition_end()
490 * cpufreq_enable_fast_switch - Enable fast frequency switching for policy.
491 * @policy: cpufreq policy to enable fast frequency switching for.
493 * Try to enable fast frequency switching for @policy.
500 void cpufreq_enable_fast_switch(struct cpufreq_policy *policy) in cpufreq_enable_fast_switch() argument
502 lockdep_assert_held(&policy->rwsem); in cpufreq_enable_fast_switch()
504 if (!policy->fast_switch_possible) in cpufreq_enable_fast_switch()
510 policy->fast_switch_enabled = true; in cpufreq_enable_fast_switch()
513 policy->cpu); in cpufreq_enable_fast_switch()
521 * cpufreq_disable_fast_switch - Disable fast frequency switching for policy.
522 * @policy: cpufreq policy to disable fast frequency switching for.
524 void cpufreq_disable_fast_switch(struct cpufreq_policy *policy) in cpufreq_disable_fast_switch() argument
527 if (policy->fast_switch_enabled) { in cpufreq_disable_fast_switch()
528 policy->fast_switch_enabled = false; in cpufreq_disable_fast_switch()
536 static unsigned int __resolve_freq(struct cpufreq_policy *policy, in __resolve_freq() argument
545 if (!policy->freq_table) in __resolve_freq()
548 idx = cpufreq_frequency_table_target(policy, target_freq, min, max, relation); in __resolve_freq()
549 policy->cached_resolved_idx = idx; in __resolve_freq()
550 policy->cached_target_freq = target_freq; in __resolve_freq()
551 return policy->freq_table[idx].frequency; in __resolve_freq()
557 * @policy: associated policy to interrogate
560 * The target to driver frequency mapping is cached in the policy.
563 * given target_freq, subject to policy (min/max) and driver limitations.
565 unsigned int cpufreq_driver_resolve_freq(struct cpufreq_policy *policy, in cpufreq_driver_resolve_freq() argument
568 unsigned int min = READ_ONCE(policy->min); in cpufreq_driver_resolve_freq()
569 unsigned int max = READ_ONCE(policy->max); in cpufreq_driver_resolve_freq()
573 * read policy->min before the update and policy->max after the update in cpufreq_driver_resolve_freq()
582 return __resolve_freq(policy, target_freq, min, max, CPUFREQ_RELATION_LE); in cpufreq_driver_resolve_freq()
586 unsigned int cpufreq_policy_transition_delay_us(struct cpufreq_policy *policy) in cpufreq_policy_transition_delay_us() argument
590 if (policy->transition_delay_us) in cpufreq_policy_transition_delay_us()
591 return policy->transition_delay_us; in cpufreq_policy_transition_delay_us()
593 latency = policy->cpuinfo.transition_latency / NSEC_PER_USEC; in cpufreq_policy_transition_delay_us()
643 static ssize_t show_local_boost(struct cpufreq_policy *policy, char *buf) in show_local_boost() argument
645 return sysfs_emit(buf, "%d\n", policy->boost_enabled); in show_local_boost()
648 static ssize_t store_local_boost(struct cpufreq_policy *policy, in store_local_boost() argument
660 if (policy->boost_enabled == enable) in store_local_boost()
663 policy->boost_enabled = enable; in store_local_boost()
666 ret = cpufreq_driver->set_boost(policy, enable); in store_local_boost()
670 policy->boost_enabled = !policy->boost_enabled; in store_local_boost()
741 * Write out information from cpufreq_driver->policy[cpu]; object must be
747 (struct cpufreq_policy *policy, char *buf) \
749 return sprintf(buf, "%u\n", policy->object); \
763 static ssize_t show_scaling_cur_freq(struct cpufreq_policy *policy, char *buf) in show_scaling_cur_freq() argument
768 freq = arch_freq_get_on_cpu(policy->cpu); in show_scaling_cur_freq()
772 ret = sprintf(buf, "%u\n", cpufreq_driver->get(policy->cpu)); in show_scaling_cur_freq()
774 ret = sprintf(buf, "%u\n", policy->cur); in show_scaling_cur_freq()
783 (struct cpufreq_policy *policy, const char *buf, size_t count) \
792 ret = freq_qos_update_request(policy->object##_freq_req, val);\
802 static ssize_t show_cpuinfo_cur_freq(struct cpufreq_policy *policy, in show_cpuinfo_cur_freq() argument
805 unsigned int cur_freq = __cpufreq_get(policy); in show_cpuinfo_cur_freq()
814 * show_scaling_governor - show the current policy for the specified CPU
816 static ssize_t show_scaling_governor(struct cpufreq_policy *policy, char *buf) in show_scaling_governor() argument
818 if (policy->policy == CPUFREQ_POLICY_POWERSAVE) in show_scaling_governor()
820 else if (policy->policy == CPUFREQ_POLICY_PERFORMANCE) in show_scaling_governor()
822 else if (policy->governor) in show_scaling_governor()
824 policy->governor->name); in show_scaling_governor()
829 * store_scaling_governor - store policy for the specified CPU
831 static ssize_t store_scaling_governor(struct cpufreq_policy *policy, in store_scaling_governor() argument
848 ret = cpufreq_set_policy(policy, NULL, new_pol); in store_scaling_governor()
856 ret = cpufreq_set_policy(policy, new_gov, in store_scaling_governor()
868 static ssize_t show_scaling_driver(struct cpufreq_policy *policy, char *buf) in show_scaling_driver() argument
876 static ssize_t show_scaling_available_governors(struct cpufreq_policy *policy, in show_scaling_available_governors() argument
923 static ssize_t show_related_cpus(struct cpufreq_policy *policy, char *buf) in show_related_cpus() argument
925 return cpufreq_show_cpus(policy->related_cpus, buf); in show_related_cpus()
931 static ssize_t show_affected_cpus(struct cpufreq_policy *policy, char *buf) in show_affected_cpus() argument
933 return cpufreq_show_cpus(policy->cpus, buf); in show_affected_cpus()
936 static ssize_t store_scaling_setspeed(struct cpufreq_policy *policy, in store_scaling_setspeed() argument
942 if (!policy->governor || !policy->governor->store_setspeed) in store_scaling_setspeed()
949 policy->governor->store_setspeed(policy, freq); in store_scaling_setspeed()
954 static ssize_t show_scaling_setspeed(struct cpufreq_policy *policy, char *buf) in show_scaling_setspeed() argument
956 if (!policy->governor || !policy->governor->show_setspeed) in show_scaling_setspeed()
959 return policy->governor->show_setspeed(policy, buf); in show_scaling_setspeed()
965 static ssize_t show_bios_limit(struct cpufreq_policy *policy, char *buf) in show_bios_limit() argument
969 ret = cpufreq_driver->bios_limit(policy->cpu, &limit); in show_bios_limit()
972 return sprintf(buf, "%u\n", policy->cpuinfo.max_freq); in show_bios_limit()
1011 struct cpufreq_policy *policy = to_policy(kobj); in show() local
1018 down_read(&policy->rwsem); in show()
1019 if (likely(!policy_is_inactive(policy))) in show()
1020 ret = fattr->show(policy, buf); in show()
1021 up_read(&policy->rwsem); in show()
1029 struct cpufreq_policy *policy = to_policy(kobj); in store() local
1036 down_write(&policy->rwsem); in store()
1037 if (likely(!policy_is_inactive(policy))) in store()
1038 ret = fattr->store(policy, buf, count); in store()
1039 up_write(&policy->rwsem); in store()
1046 struct cpufreq_policy *policy = to_policy(kobj); in cpufreq_sysfs_release() local
1048 complete(&policy->kobj_unregister); in cpufreq_sysfs_release()
1062 static void add_cpu_dev_symlink(struct cpufreq_policy *policy, unsigned int cpu, in add_cpu_dev_symlink() argument
1068 if (cpumask_test_and_set_cpu(cpu, policy->real_cpus)) in add_cpu_dev_symlink()
1072 if (sysfs_create_link(&dev->kobj, &policy->kobj, "cpufreq")) in add_cpu_dev_symlink()
1076 static void remove_cpu_dev_symlink(struct cpufreq_policy *policy, int cpu, in remove_cpu_dev_symlink() argument
1081 cpumask_clear_cpu(cpu, policy->real_cpus); in remove_cpu_dev_symlink()
1084 static int cpufreq_add_dev_interface(struct cpufreq_policy *policy) in cpufreq_add_dev_interface() argument
1092 ret = sysfs_create_file(&policy->kobj, &((*drv_attr)->attr)); in cpufreq_add_dev_interface()
1098 ret = sysfs_create_file(&policy->kobj, &cpuinfo_cur_freq.attr); in cpufreq_add_dev_interface()
1103 ret = sysfs_create_file(&policy->kobj, &scaling_cur_freq.attr); in cpufreq_add_dev_interface()
1108 ret = sysfs_create_file(&policy->kobj, &bios_limit.attr); in cpufreq_add_dev_interface()
1114 ret = sysfs_create_file(&policy->kobj, &local_boost.attr); in cpufreq_add_dev_interface()
1122 static int cpufreq_init_policy(struct cpufreq_policy *policy) in cpufreq_init_policy() argument
1129 /* Update policy governor to the one used before hotplug. */ in cpufreq_init_policy()
1130 gov = get_governor(policy->last_governor); in cpufreq_init_policy()
1133 gov->name, policy->cpu); in cpufreq_init_policy()
1145 /* Use the default policy if there is no last_policy. */ in cpufreq_init_policy()
1146 if (policy->last_policy) { in cpufreq_init_policy()
1147 pol = policy->last_policy; in cpufreq_init_policy()
1152 * nor "powersave", fall back to the initial policy in cpufreq_init_policy()
1156 pol = policy->policy; in cpufreq_init_policy()
1163 ret = cpufreq_set_policy(policy, gov, pol); in cpufreq_init_policy()
1170 static int cpufreq_add_policy_cpu(struct cpufreq_policy *policy, unsigned int cpu) in cpufreq_add_policy_cpu() argument
1175 if (cpumask_test_cpu(cpu, policy->cpus)) in cpufreq_add_policy_cpu()
1178 down_write(&policy->rwsem); in cpufreq_add_policy_cpu()
1180 cpufreq_stop_governor(policy); in cpufreq_add_policy_cpu()
1182 cpumask_set_cpu(cpu, policy->cpus); in cpufreq_add_policy_cpu()
1185 ret = cpufreq_start_governor(policy); in cpufreq_add_policy_cpu()
1189 up_write(&policy->rwsem); in cpufreq_add_policy_cpu()
1193 void refresh_frequency_limits(struct cpufreq_policy *policy) in refresh_frequency_limits() argument
1195 if (!policy_is_inactive(policy)) { in refresh_frequency_limits()
1196 pr_debug("updating policy for CPU %u\n", policy->cpu); in refresh_frequency_limits()
1198 cpufreq_set_policy(policy, policy->governor, policy->policy); in refresh_frequency_limits()
1205 struct cpufreq_policy *policy = in handle_update() local
1208 pr_debug("handle_update for cpu %u called\n", policy->cpu); in handle_update()
1209 down_write(&policy->rwsem); in handle_update()
1210 refresh_frequency_limits(policy); in handle_update()
1211 up_write(&policy->rwsem); in handle_update()
1217 struct cpufreq_policy *policy = container_of(nb, struct cpufreq_policy, nb_min); in cpufreq_notifier_min() local
1219 schedule_work(&policy->update); in cpufreq_notifier_min()
1226 struct cpufreq_policy *policy = container_of(nb, struct cpufreq_policy, nb_max); in cpufreq_notifier_max() local
1228 schedule_work(&policy->update); in cpufreq_notifier_max()
1232 static void cpufreq_policy_put_kobj(struct cpufreq_policy *policy) in cpufreq_policy_put_kobj() argument
1237 down_write(&policy->rwsem); in cpufreq_policy_put_kobj()
1238 cpufreq_stats_free_table(policy); in cpufreq_policy_put_kobj()
1239 kobj = &policy->kobj; in cpufreq_policy_put_kobj()
1240 cmp = &policy->kobj_unregister; in cpufreq_policy_put_kobj()
1241 up_write(&policy->rwsem); in cpufreq_policy_put_kobj()
1256 struct cpufreq_policy *policy; in cpufreq_policy_alloc() local
1263 policy = kzalloc(sizeof(*policy), GFP_KERNEL); in cpufreq_policy_alloc()
1264 if (!policy) in cpufreq_policy_alloc()
1267 if (!alloc_cpumask_var(&policy->cpus, GFP_KERNEL)) in cpufreq_policy_alloc()
1270 if (!zalloc_cpumask_var(&policy->related_cpus, GFP_KERNEL)) in cpufreq_policy_alloc()
1273 if (!zalloc_cpumask_var(&policy->real_cpus, GFP_KERNEL)) in cpufreq_policy_alloc()
1276 init_completion(&policy->kobj_unregister); in cpufreq_policy_alloc()
1277 ret = kobject_init_and_add(&policy->kobj, &ktype_cpufreq, in cpufreq_policy_alloc()
1278 cpufreq_global_kobject, "policy%u", cpu); in cpufreq_policy_alloc()
1280 dev_err(dev, "%s: failed to init policy->kobj: %d\n", __func__, ret); in cpufreq_policy_alloc()
1282 * The entire policy object will be freed below, but the extra in cpufreq_policy_alloc()
1286 kobject_put(&policy->kobj); in cpufreq_policy_alloc()
1290 freq_constraints_init(&policy->constraints); in cpufreq_policy_alloc()
1292 policy->nb_min.notifier_call = cpufreq_notifier_min; in cpufreq_policy_alloc()
1293 policy->nb_max.notifier_call = cpufreq_notifier_max; in cpufreq_policy_alloc()
1295 ret = freq_qos_add_notifier(&policy->constraints, FREQ_QOS_MIN, in cpufreq_policy_alloc()
1296 &policy->nb_min); in cpufreq_policy_alloc()
1303 ret = freq_qos_add_notifier(&policy->constraints, FREQ_QOS_MAX, in cpufreq_policy_alloc()
1304 &policy->nb_max); in cpufreq_policy_alloc()
1311 INIT_LIST_HEAD(&policy->policy_list); in cpufreq_policy_alloc()
1312 init_rwsem(&policy->rwsem); in cpufreq_policy_alloc()
1313 spin_lock_init(&policy->transition_lock); in cpufreq_policy_alloc()
1314 init_waitqueue_head(&policy->transition_wait); in cpufreq_policy_alloc()
1315 INIT_WORK(&policy->update, handle_update); in cpufreq_policy_alloc()
1317 policy->cpu = cpu; in cpufreq_policy_alloc()
1318 return policy; in cpufreq_policy_alloc()
1321 freq_qos_remove_notifier(&policy->constraints, FREQ_QOS_MIN, in cpufreq_policy_alloc()
1322 &policy->nb_min); in cpufreq_policy_alloc()
1324 cpufreq_policy_put_kobj(policy); in cpufreq_policy_alloc()
1326 free_cpumask_var(policy->real_cpus); in cpufreq_policy_alloc()
1328 free_cpumask_var(policy->related_cpus); in cpufreq_policy_alloc()
1330 free_cpumask_var(policy->cpus); in cpufreq_policy_alloc()
1332 kfree(policy); in cpufreq_policy_alloc()
1337 static void cpufreq_policy_free(struct cpufreq_policy *policy) in cpufreq_policy_free() argument
1343 * The callers must ensure the policy is inactive by now, to avoid any in cpufreq_policy_free()
1346 if (unlikely(!policy_is_inactive(policy))) in cpufreq_policy_free()
1347 pr_warn("%s: Freeing active policy\n", __func__); in cpufreq_policy_free()
1349 /* Remove policy from list */ in cpufreq_policy_free()
1351 list_del(&policy->policy_list); in cpufreq_policy_free()
1353 for_each_cpu(cpu, policy->related_cpus) in cpufreq_policy_free()
1357 freq_qos_remove_notifier(&policy->constraints, FREQ_QOS_MAX, in cpufreq_policy_free()
1358 &policy->nb_max); in cpufreq_policy_free()
1359 freq_qos_remove_notifier(&policy->constraints, FREQ_QOS_MIN, in cpufreq_policy_free()
1360 &policy->nb_min); in cpufreq_policy_free()
1362 /* Cancel any pending policy->update work before freeing the policy. */ in cpufreq_policy_free()
1363 cancel_work_sync(&policy->update); in cpufreq_policy_free()
1365 if (policy->max_freq_req) { in cpufreq_policy_free()
1372 CPUFREQ_REMOVE_POLICY, policy); in cpufreq_policy_free()
1373 freq_qos_remove_request(policy->max_freq_req); in cpufreq_policy_free()
1376 freq_qos_remove_request(policy->min_freq_req); in cpufreq_policy_free()
1377 kfree(policy->min_freq_req); in cpufreq_policy_free()
1379 cpufreq_policy_put_kobj(policy); in cpufreq_policy_free()
1380 free_cpumask_var(policy->real_cpus); in cpufreq_policy_free()
1381 free_cpumask_var(policy->related_cpus); in cpufreq_policy_free()
1382 free_cpumask_var(policy->cpus); in cpufreq_policy_free()
1383 kfree(policy); in cpufreq_policy_free()
1388 struct cpufreq_policy *policy; in cpufreq_online() local
1396 /* Check if this CPU already has a policy to manage it */ in cpufreq_online()
1397 policy = per_cpu(cpufreq_cpu_data, cpu); in cpufreq_online()
1398 if (policy) { in cpufreq_online()
1399 WARN_ON(!cpumask_test_cpu(cpu, policy->related_cpus)); in cpufreq_online()
1400 if (!policy_is_inactive(policy)) in cpufreq_online()
1401 return cpufreq_add_policy_cpu(policy, cpu); in cpufreq_online()
1403 /* This is the only online CPU for the policy. Start over. */ in cpufreq_online()
1405 down_write(&policy->rwsem); in cpufreq_online()
1406 policy->cpu = cpu; in cpufreq_online()
1407 policy->governor = NULL; in cpufreq_online()
1410 policy = cpufreq_policy_alloc(cpu); in cpufreq_online()
1411 if (!policy) in cpufreq_online()
1413 down_write(&policy->rwsem); in cpufreq_online()
1417 /* Recover policy->cpus using related_cpus */ in cpufreq_online()
1418 cpumask_copy(policy->cpus, policy->related_cpus); in cpufreq_online()
1420 ret = cpufreq_driver->online(policy); in cpufreq_online()
1427 cpumask_copy(policy->cpus, cpumask_of(cpu)); in cpufreq_online()
1433 ret = cpufreq_driver->init(policy); in cpufreq_online()
1440 /* Let the per-policy boost flag mirror the cpufreq_driver boost during init */ in cpufreq_online()
1441 if (cpufreq_boost_enabled() && policy_has_boost_freq(policy)) in cpufreq_online()
1442 policy->boost_enabled = true; in cpufreq_online()
1445 * The initialization has succeeded and the policy is online. in cpufreq_online()
1449 ret = cpufreq_table_validate_and_sort(policy); in cpufreq_online()
1453 /* related_cpus should at least include policy->cpus. */ in cpufreq_online()
1454 cpumask_copy(policy->related_cpus, policy->cpus); in cpufreq_online()
1461 cpumask_and(policy->cpus, policy->cpus, cpu_online_mask); in cpufreq_online()
1464 for_each_cpu(j, policy->related_cpus) { in cpufreq_online()
1465 per_cpu(cpufreq_cpu_data, j) = policy; in cpufreq_online()
1466 add_cpu_dev_symlink(policy, j, get_cpu_device(j)); in cpufreq_online()
1469 policy->min_freq_req = kzalloc(2 * sizeof(*policy->min_freq_req), in cpufreq_online()
1471 if (!policy->min_freq_req) { in cpufreq_online()
1476 ret = freq_qos_add_request(&policy->constraints, in cpufreq_online()
1477 policy->min_freq_req, FREQ_QOS_MIN, in cpufreq_online()
1484 kfree(policy->min_freq_req); in cpufreq_online()
1485 policy->min_freq_req = NULL; in cpufreq_online()
1494 policy->max_freq_req = policy->min_freq_req + 1; in cpufreq_online()
1496 ret = freq_qos_add_request(&policy->constraints, in cpufreq_online()
1497 policy->max_freq_req, FREQ_QOS_MAX, in cpufreq_online()
1500 policy->max_freq_req = NULL; in cpufreq_online()
1505 CPUFREQ_CREATE_POLICY, policy); in cpufreq_online()
1509 policy->cur = cpufreq_driver->get(policy->cpu); in cpufreq_online()
1510 if (!policy->cur) { in cpufreq_online()
1527 * for the next freq which is >= policy->cur ('cur' must be set by now, in cpufreq_online()
1531 * We are passing target-freq as "policy->cur - 1" otherwise in cpufreq_online()
1532 * __cpufreq_driver_target() would simply fail, as policy->cur will be in cpufreq_online()
1537 unsigned int old_freq = policy->cur; in cpufreq_online()
1540 ret = cpufreq_frequency_table_get_index(policy, old_freq); in cpufreq_online()
1542 ret = __cpufreq_driver_target(policy, old_freq - 1, in cpufreq_online()
1552 __func__, policy->cpu, old_freq, policy->cur); in cpufreq_online()
1557 ret = cpufreq_add_dev_interface(policy); in cpufreq_online()
1561 cpufreq_stats_create_table(policy); in cpufreq_online()
1564 list_add(&policy->policy_list, &cpufreq_policy_list); in cpufreq_online()
1571 * once the energy model is properly initialized for the policy in cpufreq_online()
1574 * Also, this should be called before the policy is registered in cpufreq_online()
1578 cpufreq_driver->register_em(policy); in cpufreq_online()
1581 ret = cpufreq_init_policy(policy); in cpufreq_online()
1583 pr_err("%s: Failed to initialize policy for cpu: %d (%d)\n", in cpufreq_online()
1588 up_write(&policy->rwsem); in cpufreq_online()
1590 kobject_uevent(&policy->kobj, KOBJ_ADD); in cpufreq_online()
1592 /* Callback for handling stuff after policy is ready */ in cpufreq_online()
1594 cpufreq_driver->ready(policy); in cpufreq_online()
1596 /* Register cpufreq cooling only for a new policy */ in cpufreq_online()
1598 policy->cdev = of_cpufreq_cooling_register(policy); in cpufreq_online()
1605 for_each_cpu(j, policy->real_cpus) in cpufreq_online()
1606 remove_cpu_dev_symlink(policy, j, get_cpu_device(j)); in cpufreq_online()
1610 cpufreq_driver->offline(policy); in cpufreq_online()
1614 cpufreq_driver->exit(policy); in cpufreq_online()
1617 cpumask_clear(policy->cpus); in cpufreq_online()
1618 up_write(&policy->rwsem); in cpufreq_online()
1620 cpufreq_policy_free(policy); in cpufreq_online()
1631 struct cpufreq_policy *policy; in cpufreq_add_dev() local
1644 policy = per_cpu(cpufreq_cpu_data, cpu); in cpufreq_add_dev()
1645 if (policy) in cpufreq_add_dev()
1646 add_cpu_dev_symlink(policy, cpu, dev); in cpufreq_add_dev()
1651 static void __cpufreq_offline(unsigned int cpu, struct cpufreq_policy *policy) in __cpufreq_offline() argument
1656 cpufreq_stop_governor(policy); in __cpufreq_offline()
1658 cpumask_clear_cpu(cpu, policy->cpus); in __cpufreq_offline()
1660 if (!policy_is_inactive(policy)) { in __cpufreq_offline()
1662 if (cpu == policy->cpu) in __cpufreq_offline()
1663 policy->cpu = cpumask_any(policy->cpus); in __cpufreq_offline()
1665 /* Start the governor again for the active policy. */ in __cpufreq_offline()
1667 ret = cpufreq_start_governor(policy); in __cpufreq_offline()
1676 strncpy(policy->last_governor, policy->governor->name, in __cpufreq_offline()
1679 policy->last_policy = policy->policy; in __cpufreq_offline()
1682 cpufreq_exit_governor(policy); in __cpufreq_offline()
1689 cpufreq_driver->offline(policy); in __cpufreq_offline()
1694 cpufreq_driver->exit(policy); in __cpufreq_offline()
1696 policy->freq_table = NULL; in __cpufreq_offline()
1701 struct cpufreq_policy *policy; in cpufreq_offline() local
1705 policy = cpufreq_cpu_get_raw(cpu); in cpufreq_offline()
1706 if (!policy) { in cpufreq_offline()
1711 down_write(&policy->rwsem); in cpufreq_offline()
1713 __cpufreq_offline(cpu, policy); in cpufreq_offline()
1715 up_write(&policy->rwsem); in cpufreq_offline()
1727 struct cpufreq_policy *policy = per_cpu(cpufreq_cpu_data, cpu); in cpufreq_remove_dev() local
1729 if (!policy) in cpufreq_remove_dev()
1732 down_write(&policy->rwsem); in cpufreq_remove_dev()
1735 __cpufreq_offline(cpu, policy); in cpufreq_remove_dev()
1737 remove_cpu_dev_symlink(policy, cpu, dev); in cpufreq_remove_dev()
1739 if (!cpumask_empty(policy->real_cpus)) { in cpufreq_remove_dev()
1740 up_write(&policy->rwsem); in cpufreq_remove_dev()
1745 * Unregister cpufreq cooling once all the CPUs of the policy are in cpufreq_remove_dev()
1749 cpufreq_cooling_unregister(policy->cdev); in cpufreq_remove_dev()
1750 policy->cdev = NULL; in cpufreq_remove_dev()
1755 cpufreq_driver->exit(policy); in cpufreq_remove_dev()
1757 up_write(&policy->rwsem); in cpufreq_remove_dev()
1759 cpufreq_policy_free(policy); in cpufreq_remove_dev()
1764 * @policy: Policy managing CPUs.
1770 static void cpufreq_out_of_sync(struct cpufreq_policy *policy, in cpufreq_out_of_sync() argument
1776 policy->cur, new_freq); in cpufreq_out_of_sync()
1778 freqs.old = policy->cur; in cpufreq_out_of_sync()
1781 cpufreq_freq_transition_begin(policy, &freqs); in cpufreq_out_of_sync()
1782 cpufreq_freq_transition_end(policy, &freqs, 0); in cpufreq_out_of_sync()
1785 static unsigned int cpufreq_verify_current_freq(struct cpufreq_policy *policy, bool update) in cpufreq_verify_current_freq() argument
1789 new_freq = cpufreq_driver->get(policy->cpu); in cpufreq_verify_current_freq()
1794 * If fast frequency switching is used with the given policy, the check in cpufreq_verify_current_freq()
1795 * against policy->cur is pointless, so skip it in that case. in cpufreq_verify_current_freq()
1797 if (policy->fast_switch_enabled || !has_target()) in cpufreq_verify_current_freq()
1800 if (policy->cur != new_freq) { in cpufreq_verify_current_freq()
1808 if (abs(policy->cur - new_freq) < KHZ_PER_MHZ) in cpufreq_verify_current_freq()
1809 return policy->cur; in cpufreq_verify_current_freq()
1811 cpufreq_out_of_sync(policy, new_freq); in cpufreq_verify_current_freq()
1813 schedule_work(&policy->update); in cpufreq_verify_current_freq()
1820 * cpufreq_quick_get - get the CPU frequency (in kHz) from policy->cur
1828 struct cpufreq_policy *policy; in cpufreq_quick_get() local
1842 policy = cpufreq_cpu_get(cpu); in cpufreq_quick_get()
1843 if (policy) { in cpufreq_quick_get()
1844 ret_freq = policy->cur; in cpufreq_quick_get()
1845 cpufreq_cpu_put(policy); in cpufreq_quick_get()
1860 struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); in cpufreq_quick_get_max() local
1863 if (policy) { in cpufreq_quick_get_max()
1864 ret_freq = policy->max; in cpufreq_quick_get_max()
1865 cpufreq_cpu_put(policy); in cpufreq_quick_get_max()
1880 struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); in cpufreq_get_hw_max_freq() local
1883 if (policy) { in cpufreq_get_hw_max_freq()
1884 ret_freq = policy->cpuinfo.max_freq; in cpufreq_get_hw_max_freq()
1885 cpufreq_cpu_put(policy); in cpufreq_get_hw_max_freq()
1892 static unsigned int __cpufreq_get(struct cpufreq_policy *policy) in __cpufreq_get() argument
1894 if (unlikely(policy_is_inactive(policy))) in __cpufreq_get()
1897 return cpufreq_verify_current_freq(policy, true); in __cpufreq_get()
1908 struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); in cpufreq_get() local
1911 if (policy) { in cpufreq_get()
1912 down_read(&policy->rwsem); in cpufreq_get()
1914 ret_freq = __cpufreq_get(policy); in cpufreq_get()
1915 up_read(&policy->rwsem); in cpufreq_get()
1917 cpufreq_cpu_put(policy); in cpufreq_get()
1935 int cpufreq_generic_suspend(struct cpufreq_policy *policy) in cpufreq_generic_suspend() argument
1939 if (!policy->suspend_freq) { in cpufreq_generic_suspend()
1945 policy->suspend_freq); in cpufreq_generic_suspend()
1947 ret = __cpufreq_driver_target(policy, policy->suspend_freq, in cpufreq_generic_suspend()
1951 __func__, policy->suspend_freq, ret); in cpufreq_generic_suspend()
1967 struct cpufreq_policy *policy; in cpufreq_suspend() local
1977 for_each_active_policy(policy) { in cpufreq_suspend()
1979 down_write(&policy->rwsem); in cpufreq_suspend()
1980 cpufreq_stop_governor(policy); in cpufreq_suspend()
1981 up_write(&policy->rwsem); in cpufreq_suspend()
1984 if (cpufreq_driver->suspend && cpufreq_driver->suspend(policy)) in cpufreq_suspend()
2001 struct cpufreq_policy *policy; in cpufreq_resume() local
2017 for_each_active_policy(policy) { in cpufreq_resume()
2018 if (cpufreq_driver->resume && cpufreq_driver->resume(policy)) { in cpufreq_resume()
2022 down_write(&policy->rwsem); in cpufreq_resume()
2023 ret = cpufreq_start_governor(policy); in cpufreq_resume()
2024 up_write(&policy->rwsem); in cpufreq_resume()
2027 pr_err("%s: Failed to start governor for CPU%u's policy\n", in cpufreq_resume()
2028 __func__, policy->cpu); in cpufreq_resume()
2086 * of notifiers that ron on cpufreq policy changes.
2172 * @policy: cpufreq policy to switch the frequency for.
2182 * This function must not be called if policy->fast_switch_enabled is unset.
2185 * twice in parallel for the same policy and that it will never be called in
2186 * parallel with either ->target() or ->target_index() for the same policy.
2193 unsigned int cpufreq_driver_fast_switch(struct cpufreq_policy *policy, in cpufreq_driver_fast_switch() argument
2199 target_freq = clamp_val(target_freq, policy->min, policy->max); in cpufreq_driver_fast_switch()
2200 freq = cpufreq_driver->fast_switch(policy, target_freq); in cpufreq_driver_fast_switch()
2205 policy->cur = freq; in cpufreq_driver_fast_switch()
2206 arch_set_freq_scale(policy->related_cpus, freq, in cpufreq_driver_fast_switch()
2207 policy->cpuinfo.max_freq); in cpufreq_driver_fast_switch()
2208 cpufreq_stats_record_transition(policy, freq); in cpufreq_driver_fast_switch()
2211 for_each_cpu(cpu, policy->cpus) in cpufreq_driver_fast_switch()
2233 * This function must not be called if policy->fast_switch_enabled is unset.
2260 static int __target_intermediate(struct cpufreq_policy *policy, in __target_intermediate() argument
2265 freqs->new = cpufreq_driver->get_intermediate(policy, index); in __target_intermediate()
2272 __func__, policy->cpu, freqs->old, freqs->new); in __target_intermediate()
2274 cpufreq_freq_transition_begin(policy, freqs); in __target_intermediate()
2275 ret = cpufreq_driver->target_intermediate(policy, index); in __target_intermediate()
2276 cpufreq_freq_transition_end(policy, freqs, ret); in __target_intermediate()
2285 static int __target_index(struct cpufreq_policy *policy, int index) in __target_index() argument
2287 struct cpufreq_freqs freqs = {.old = policy->cur, .flags = 0}; in __target_index()
2289 unsigned int newfreq = policy->freq_table[index].frequency; in __target_index()
2293 if (newfreq == policy->cur) in __target_index()
2297 restore_freq = policy->cur; in __target_index()
2303 retval = __target_intermediate(policy, &freqs, index); in __target_index()
2315 __func__, policy->cpu, freqs.old, freqs.new); in __target_index()
2317 cpufreq_freq_transition_begin(policy, &freqs); in __target_index()
2320 retval = cpufreq_driver->target_index(policy, index); in __target_index()
2326 cpufreq_freq_transition_end(policy, &freqs, retval); in __target_index()
2337 cpufreq_freq_transition_begin(policy, &freqs); in __target_index()
2338 cpufreq_freq_transition_end(policy, &freqs, 0); in __target_index()
2345 int __cpufreq_driver_target(struct cpufreq_policy *policy, in __cpufreq_driver_target() argument
2354 target_freq = __resolve_freq(policy, target_freq, policy->min, in __cpufreq_driver_target()
2355 policy->max, relation); in __cpufreq_driver_target()
2358 policy->cpu, target_freq, relation, old_target_freq); in __cpufreq_driver_target()
2366 if (target_freq == policy->cur && in __cpufreq_driver_target()
2375 if (!policy->efficiencies_available) in __cpufreq_driver_target()
2378 return cpufreq_driver->target(policy, target_freq, relation); in __cpufreq_driver_target()
2384 return __target_index(policy, policy->cached_resolved_idx); in __cpufreq_driver_target()
2388 int cpufreq_driver_target(struct cpufreq_policy *policy, in cpufreq_driver_target() argument
2394 down_write(&policy->rwsem); in cpufreq_driver_target()
2396 ret = __cpufreq_driver_target(policy, target_freq, relation); in cpufreq_driver_target()
2398 up_write(&policy->rwsem); in cpufreq_driver_target()
2409 static int cpufreq_init_governor(struct cpufreq_policy *policy) in cpufreq_init_governor() argument
2420 if (!policy->governor) in cpufreq_init_governor()
2424 if (policy->governor->flags & CPUFREQ_GOV_DYNAMIC_SWITCHING && in cpufreq_init_governor()
2430 policy->governor->name, gov->name); in cpufreq_init_governor()
2431 policy->governor = gov; in cpufreq_init_governor()
2437 if (!try_module_get(policy->governor->owner)) in cpufreq_init_governor()
2440 pr_debug("%s: for CPU %u\n", __func__, policy->cpu); in cpufreq_init_governor()
2442 if (policy->governor->init) { in cpufreq_init_governor()
2443 ret = policy->governor->init(policy); in cpufreq_init_governor()
2445 module_put(policy->governor->owner); in cpufreq_init_governor()
2450 policy->strict_target = !!(policy->governor->flags & CPUFREQ_GOV_STRICT_TARGET); in cpufreq_init_governor()
2455 static void cpufreq_exit_governor(struct cpufreq_policy *policy) in cpufreq_exit_governor() argument
2457 if (cpufreq_suspended || !policy->governor) in cpufreq_exit_governor()
2460 pr_debug("%s: for CPU %u\n", __func__, policy->cpu); in cpufreq_exit_governor()
2462 if (policy->governor->exit) in cpufreq_exit_governor()
2463 policy->governor->exit(policy); in cpufreq_exit_governor()
2465 module_put(policy->governor->owner); in cpufreq_exit_governor()
2468 int cpufreq_start_governor(struct cpufreq_policy *policy) in cpufreq_start_governor() argument
2475 if (!policy->governor) in cpufreq_start_governor()
2478 pr_debug("%s: for CPU %u\n", __func__, policy->cpu); in cpufreq_start_governor()
2481 cpufreq_verify_current_freq(policy, false); in cpufreq_start_governor()
2483 if (policy->governor->start) { in cpufreq_start_governor()
2484 ret = policy->governor->start(policy); in cpufreq_start_governor()
2489 if (policy->governor->limits) in cpufreq_start_governor()
2490 policy->governor->limits(policy); in cpufreq_start_governor()
2495 void cpufreq_stop_governor(struct cpufreq_policy *policy) in cpufreq_stop_governor() argument
2497 if (cpufreq_suspended || !policy->governor) in cpufreq_stop_governor()
2500 pr_debug("%s: for CPU %u\n", __func__, policy->cpu); in cpufreq_stop_governor()
2502 if (policy->governor->stop) in cpufreq_stop_governor()
2503 policy->governor->stop(policy); in cpufreq_stop_governor()
2506 static void cpufreq_governor_limits(struct cpufreq_policy *policy) in cpufreq_governor_limits() argument
2508 if (cpufreq_suspended || !policy->governor) in cpufreq_governor_limits()
2511 pr_debug("%s: for CPU %u\n", __func__, policy->cpu); in cpufreq_governor_limits()
2513 if (policy->governor->limits) in cpufreq_governor_limits()
2514 policy->governor->limits(policy); in cpufreq_governor_limits()
2542 struct cpufreq_policy *policy; in cpufreq_unregister_governor() local
2553 for_each_inactive_policy(policy) { in cpufreq_unregister_governor()
2554 if (!strcmp(policy->last_governor, governor->name)) { in cpufreq_unregister_governor()
2555 policy->governor = NULL; in cpufreq_unregister_governor()
2556 strcpy(policy->last_governor, "\0"); in cpufreq_unregister_governor()
2569 * POLICY INTERFACE *
2574 * @policy: struct cpufreq_policy into which the current cpufreq_policy
2576 * @cpu: CPU to find the policy for
2578 * Reads the current cpufreq policy.
2580 int cpufreq_get_policy(struct cpufreq_policy *policy, unsigned int cpu) in cpufreq_get_policy() argument
2583 if (!policy) in cpufreq_get_policy()
2590 memcpy(policy, cpu_policy, sizeof(*policy)); in cpufreq_get_policy()
2598 * cpufreq_set_policy - Modify cpufreq policy parameters.
2599 * @policy: Policy object to modify.
2600 * @new_gov: Policy governor pointer.
2601 * @new_pol: Policy value (for drivers with built-in governors).
2604 * limits to be set for the policy, update @policy with the verified limits
2606 * carry out a governor update for @policy. That is, run the current governor's
2608 * @policy) or replace the governor for @policy with @new_gov.
2610 * The cpuinfo part of @policy is not updated by this function.
2612 static int cpufreq_set_policy(struct cpufreq_policy *policy, in cpufreq_set_policy() argument
2620 memcpy(&new_data.cpuinfo, &policy->cpuinfo, sizeof(policy->cpuinfo)); in cpufreq_set_policy()
2621 new_data.freq_table = policy->freq_table; in cpufreq_set_policy()
2622 new_data.cpu = policy->cpu; in cpufreq_set_policy()
2627 new_data.min = freq_qos_read_value(&policy->constraints, FREQ_QOS_MIN); in cpufreq_set_policy()
2628 new_data.max = freq_qos_read_value(&policy->constraints, FREQ_QOS_MAX); in cpufreq_set_policy()
2630 pr_debug("setting new policy for CPU %u: %u - %u kHz\n", in cpufreq_set_policy()
2642 * Resolve policy min/max to available frequencies. It ensures in cpufreq_set_policy()
2646 * Avoid storing intermediate values in policy->max or policy->min and in cpufreq_set_policy()
2650 WRITE_ONCE(policy->max, __resolve_freq(policy, new_data.max, in cpufreq_set_policy()
2653 new_data.min = __resolve_freq(policy, new_data.min, new_data.min, in cpufreq_set_policy()
2655 WRITE_ONCE(policy->min, new_data.min > policy->max ? policy->max : new_data.min); in cpufreq_set_policy()
2657 trace_cpu_frequency_limits(policy); in cpufreq_set_policy()
2659 policy->cached_target_freq = UINT_MAX; in cpufreq_set_policy()
2662 policy->min, policy->max); in cpufreq_set_policy()
2665 policy->policy = new_pol; in cpufreq_set_policy()
2667 return cpufreq_driver->setpolicy(policy); in cpufreq_set_policy()
2670 if (new_gov == policy->governor) { in cpufreq_set_policy()
2672 cpufreq_governor_limits(policy); in cpufreq_set_policy()
2679 old_gov = policy->governor; in cpufreq_set_policy()
2682 cpufreq_stop_governor(policy); in cpufreq_set_policy()
2683 cpufreq_exit_governor(policy); in cpufreq_set_policy()
2687 policy->governor = new_gov; in cpufreq_set_policy()
2688 ret = cpufreq_init_governor(policy); in cpufreq_set_policy()
2690 ret = cpufreq_start_governor(policy); in cpufreq_set_policy()
2693 sched_cpufreq_governor_change(policy, old_gov); in cpufreq_set_policy()
2696 cpufreq_exit_governor(policy); in cpufreq_set_policy()
2700 pr_debug("starting governor %s failed\n", policy->governor->name); in cpufreq_set_policy()
2702 policy->governor = old_gov; in cpufreq_set_policy()
2703 if (cpufreq_init_governor(policy)) in cpufreq_set_policy()
2704 policy->governor = NULL; in cpufreq_set_policy()
2706 cpufreq_start_governor(policy); in cpufreq_set_policy()
2713 * cpufreq_update_policy - Re-evaluate an existing cpufreq policy.
2714 * @cpu: CPU to re-evaluate the policy for.
2716 * Update the current frequency for the cpufreq policy of @cpu and use
2718 * evaluation of policy notifiers and the cpufreq driver's ->verify() callback
2719 * for the policy in question, among other things.
2723 struct cpufreq_policy *policy = cpufreq_cpu_acquire(cpu); in cpufreq_update_policy() local
2725 if (!policy) in cpufreq_update_policy()
2733 (cpufreq_suspended || WARN_ON(!cpufreq_verify_current_freq(policy, false)))) in cpufreq_update_policy()
2736 refresh_frequency_limits(policy); in cpufreq_update_policy()
2739 cpufreq_cpu_release(policy); in cpufreq_update_policy()
2744 * cpufreq_update_limits - Update policy limits for a given CPU.
2745 * @cpu: CPU to update the policy limits for.
2752 struct cpufreq_policy *policy; in cpufreq_update_limits() local
2754 policy = cpufreq_cpu_get(cpu); in cpufreq_update_limits()
2755 if (!policy) in cpufreq_update_limits()
2763 cpufreq_cpu_put(policy); in cpufreq_update_limits()
2770 static int cpufreq_boost_set_sw(struct cpufreq_policy *policy, int state) in cpufreq_boost_set_sw() argument
2774 if (!policy->freq_table) in cpufreq_boost_set_sw()
2777 ret = cpufreq_frequency_table_cpuinfo(policy, policy->freq_table); in cpufreq_boost_set_sw()
2779 pr_err("%s: Policy frequency update failed\n", __func__); in cpufreq_boost_set_sw()
2783 ret = freq_qos_update_request(policy->max_freq_req, policy->max); in cpufreq_boost_set_sw()
2792 struct cpufreq_policy *policy; in cpufreq_boost_trigger_state() local
2804 for_each_active_policy(policy) { in cpufreq_boost_trigger_state()
2805 policy->boost_enabled = state; in cpufreq_boost_trigger_state()
2806 ret = cpufreq_driver->set_boost(policy, state); in cpufreq_boost_trigger_state()
2808 policy->boost_enabled = !policy->boost_enabled; in cpufreq_boost_trigger_state()