Lines Matching +full:cpu +full:- +full:centric
1 // SPDX-License-Identifier: GPL-2.0
3 * drivers/base/power/domain.c - Common code related to device power domains.
23 #include <linux/cpu.h>
35 __routine = genpd->dev_ops.callback; \
54 mutex_lock(&genpd->mlock); in genpd_lock_mtx()
60 mutex_lock_nested(&genpd->mlock, depth); in genpd_lock_nested_mtx()
65 return mutex_lock_interruptible(&genpd->mlock); in genpd_lock_interruptible_mtx()
70 return mutex_unlock(&genpd->mlock); in genpd_unlock_mtx()
81 __acquires(&genpd->slock) in genpd_lock_spin()
85 spin_lock_irqsave(&genpd->slock, flags); in genpd_lock_spin()
86 genpd->lock_flags = flags; in genpd_lock_spin()
91 __acquires(&genpd->slock) in genpd_lock_nested_spin()
95 spin_lock_irqsave_nested(&genpd->slock, flags, depth); in genpd_lock_nested_spin()
96 genpd->lock_flags = flags; in genpd_lock_nested_spin()
100 __acquires(&genpd->slock) in genpd_lock_interruptible_spin()
104 spin_lock_irqsave(&genpd->slock, flags); in genpd_lock_interruptible_spin()
105 genpd->lock_flags = flags; in genpd_lock_interruptible_spin()
110 __releases(&genpd->slock) in genpd_unlock_spin()
112 spin_unlock_irqrestore(&genpd->slock, genpd->lock_flags); in genpd_unlock_spin()
122 #define genpd_lock(p) p->lock_ops->lock(p)
123 #define genpd_lock_nested(p, d) p->lock_ops->lock_nested(p, d)
124 #define genpd_lock_interruptible(p) p->lock_ops->lock_interruptible(p)
125 #define genpd_unlock(p) p->lock_ops->unlock(p)
127 #define genpd_status_on(genpd) (genpd->status == GENPD_STATE_ON)
128 #define genpd_is_irq_safe(genpd) (genpd->flags & GENPD_FLAG_IRQ_SAFE)
129 #define genpd_is_always_on(genpd) (genpd->flags & GENPD_FLAG_ALWAYS_ON)
130 #define genpd_is_active_wakeup(genpd) (genpd->flags & GENPD_FLAG_ACTIVE_WAKEUP)
131 #define genpd_is_cpu_domain(genpd) (genpd->flags & GENPD_FLAG_CPU_DOMAIN)
132 #define genpd_is_rpm_always_on(genpd) (genpd->flags & GENPD_FLAG_RPM_ALWAYS_ON)
148 genpd->name); in irq_safe_dev_in_no_sleep_domain()
163 if (IS_ERR_OR_NULL(dev) || IS_ERR_OR_NULL(dev->pm_domain)) in dev_to_genpd_safe()
166 /* A genpd's always have its ->runtime_suspend() callback assigned. */ in dev_to_genpd_safe()
167 if (dev->pm_domain->ops.runtime_suspend == genpd_runtime_suspend) in dev_to_genpd_safe()
168 return pd_to_genpd(dev->pm_domain); in dev_to_genpd_safe()
179 if (IS_ERR_OR_NULL(dev->pm_domain)) in dev_to_genpd()
180 return ERR_PTR(-EINVAL); in dev_to_genpd()
182 return pd_to_genpd(dev->pm_domain); in dev_to_genpd()
201 if (!WARN_ON(atomic_read(&genpd->sd_count) == 0)) in genpd_sd_counter_dec()
202 ret = !!atomic_dec_and_test(&genpd->sd_count); in genpd_sd_counter_dec()
209 atomic_inc(&genpd->sd_count); in genpd_sd_counter_inc()
225 d = debugfs_lookup(genpd->name, genpd_debugfs_dir); in genpd_debug_remove()
234 delta = ktime_sub(now, genpd->accounting_time); in genpd_update_accounting()
237 * If genpd->status is active, it means we are just in genpd_update_accounting()
241 if (genpd->status == GENPD_STATE_ON) { in genpd_update_accounting()
242 int state_idx = genpd->state_idx; in genpd_update_accounting()
244 genpd->states[state_idx].idle_time = in genpd_update_accounting()
245 ktime_add(genpd->states[state_idx].idle_time, delta); in genpd_update_accounting()
247 genpd->on_time = ktime_add(genpd->on_time, delta); in genpd_update_accounting()
250 genpd->accounting_time = now; in genpd_update_accounting()
266 if (state == genpd->performance_state) in _genpd_reeval_performance_state()
270 if (state > genpd->performance_state) in _genpd_reeval_performance_state()
274 list_for_each_entry(pdd, &genpd->dev_list, list_node) { in _genpd_reeval_performance_state()
277 if (pd_data->performance_state > state) in _genpd_reeval_performance_state()
278 state = pd_data->performance_state; in _genpd_reeval_performance_state()
282 * Traverse all sub-domains within the domain. This can be in _genpd_reeval_performance_state()
283 * done without any additional locking as the link->performance_state in _genpd_reeval_performance_state()
284 * field is protected by the parent genpd->lock, which is already taken. in _genpd_reeval_performance_state()
286 * Also note that link->performance_state (subdomain's performance state in _genpd_reeval_performance_state()
288 * link->child->performance_state (current performance state requirement in _genpd_reeval_performance_state()
289 * of the devices/sub-domains of the subdomain) and so can have a in _genpd_reeval_performance_state()
292 * Note that we also take vote from powered-off sub-domains into account in _genpd_reeval_performance_state()
295 list_for_each_entry(link, &genpd->parent_links, parent_node) { in _genpd_reeval_performance_state()
296 if (link->performance_state > state) in _genpd_reeval_performance_state()
297 state = link->performance_state; in _genpd_reeval_performance_state()
310 if (state == genpd->performance_state) in _genpd_set_performance_state()
314 list_for_each_entry(link, &genpd->child_links, child_node) { in _genpd_set_performance_state()
315 parent = link->parent; in _genpd_set_performance_state()
317 if (!parent->set_performance_state) in _genpd_set_performance_state()
321 ret = dev_pm_opp_xlate_performance_state(genpd->opp_table, in _genpd_set_performance_state()
322 parent->opp_table, in _genpd_set_performance_state()
331 link->prev_performance_state = link->performance_state; in _genpd_set_performance_state()
332 link->performance_state = parent_state; in _genpd_set_performance_state()
337 link->performance_state = link->prev_performance_state; in _genpd_set_performance_state()
345 ret = genpd->set_performance_state(genpd, state); in _genpd_set_performance_state()
349 genpd->performance_state = state; in _genpd_set_performance_state()
354 list_for_each_entry_continue_reverse(link, &genpd->child_links, in _genpd_set_performance_state()
356 parent = link->parent; in _genpd_set_performance_state()
358 if (!parent->set_performance_state) in _genpd_set_performance_state()
363 parent_state = link->prev_performance_state; in _genpd_set_performance_state()
364 link->performance_state = parent_state; in _genpd_set_performance_state()
370 parent->name, parent_state); in _genpd_set_performance_state()
380 * dev_pm_genpd_set_performance_state- Set performance state of device's power
383 * @dev: Device for which the performance-state needs to be set.
403 return -ENODEV; in dev_pm_genpd_set_performance_state()
405 if (unlikely(!genpd->set_performance_state)) in dev_pm_genpd_set_performance_state()
406 return -EINVAL; in dev_pm_genpd_set_performance_state()
408 if (WARN_ON(!dev->power.subsys_data || in dev_pm_genpd_set_performance_state()
409 !dev->power.subsys_data->domain_data)) in dev_pm_genpd_set_performance_state()
410 return -EINVAL; in dev_pm_genpd_set_performance_state()
414 gpd_data = to_gpd_data(dev->power.subsys_data->domain_data); in dev_pm_genpd_set_performance_state()
415 prev = gpd_data->performance_state; in dev_pm_genpd_set_performance_state()
416 gpd_data->performance_state = state; in dev_pm_genpd_set_performance_state()
421 gpd_data->performance_state = prev; in dev_pm_genpd_set_performance_state()
430 * dev_pm_genpd_set_next_wakeup - Notify PM framework of an impending wakeup.
453 gpd_data = to_gpd_data(dev->power.subsys_data->domain_data); in dev_pm_genpd_set_next_wakeup()
454 gpd_data->next_wakeup = next; in dev_pm_genpd_set_next_wakeup()
460 unsigned int state_idx = genpd->state_idx; in _genpd_power_on()
466 ret = raw_notifier_call_chain_robust(&genpd->power_notifiers, in _genpd_power_on()
473 if (!genpd->power_on) in _genpd_power_on()
477 ret = genpd->power_on(genpd); in _genpd_power_on()
485 ret = genpd->power_on(genpd); in _genpd_power_on()
490 if (elapsed_ns <= genpd->states[state_idx].power_on_latency_ns) in _genpd_power_on()
493 genpd->states[state_idx].power_on_latency_ns = elapsed_ns; in _genpd_power_on()
494 genpd->max_off_time_changed = true; in _genpd_power_on()
495 pr_debug("%s: Power-%s latency exceeded, new value %lld ns\n", in _genpd_power_on()
496 genpd->name, "on", elapsed_ns); in _genpd_power_on()
499 raw_notifier_call_chain(&genpd->power_notifiers, GENPD_NOTIFY_ON, NULL); in _genpd_power_on()
502 raw_notifier_call_chain(&genpd->power_notifiers, GENPD_NOTIFY_OFF, in _genpd_power_on()
509 unsigned int state_idx = genpd->state_idx; in _genpd_power_off()
515 ret = raw_notifier_call_chain_robust(&genpd->power_notifiers, in _genpd_power_off()
522 if (!genpd->power_off) in _genpd_power_off()
526 ret = genpd->power_off(genpd); in _genpd_power_off()
534 ret = genpd->power_off(genpd); in _genpd_power_off()
539 if (elapsed_ns <= genpd->states[state_idx].power_off_latency_ns) in _genpd_power_off()
542 genpd->states[state_idx].power_off_latency_ns = elapsed_ns; in _genpd_power_off()
543 genpd->max_off_time_changed = true; in _genpd_power_off()
544 pr_debug("%s: Power-%s latency exceeded, new value %lld ns\n", in _genpd_power_off()
545 genpd->name, "off", elapsed_ns); in _genpd_power_off()
548 raw_notifier_call_chain(&genpd->power_notifiers, GENPD_NOTIFY_OFF, in _genpd_power_off()
552 raw_notifier_call_chain(&genpd->power_notifiers, GENPD_NOTIFY_ON, NULL); in _genpd_power_off()
557 * genpd_queue_power_off_work - Queue up the execution of genpd_power_off().
565 queue_work(pm_wq, &genpd->power_off_work); in genpd_queue_power_off_work()
569 * genpd_power_off - Remove power from a given PM domain.
571 * @one_dev_on: If invoked from genpd's ->runtime_suspend|resume() callback, the
592 if (!genpd_status_on(genpd) || genpd->prepared_count > 0) in genpd_power_off()
602 atomic_read(&genpd->sd_count) > 0) in genpd_power_off()
603 return -EBUSY; in genpd_power_off()
605 list_for_each_entry(pdd, &genpd->dev_list, list_node) { in genpd_power_off()
608 stat = dev_pm_qos_flags(pdd->dev, PM_QOS_FLAG_NO_POWER_OFF); in genpd_power_off()
610 return -EBUSY; in genpd_power_off()
614 * device is part of a non-IRQ safe domain. in genpd_power_off()
616 if (!pm_runtime_suspended(pdd->dev) || in genpd_power_off()
617 irq_safe_dev_in_no_sleep_domain(pdd->dev, genpd)) in genpd_power_off()
622 return -EBUSY; in genpd_power_off()
624 if (genpd->gov && genpd->gov->power_down_ok) { in genpd_power_off()
625 if (!genpd->gov->power_down_ok(&genpd->domain)) in genpd_power_off()
626 return -EAGAIN; in genpd_power_off()
630 if (!genpd->gov) in genpd_power_off()
631 genpd->state_idx = 0; in genpd_power_off()
634 if (atomic_read(&genpd->sd_count) > 0) in genpd_power_off()
635 return -EBUSY; in genpd_power_off()
639 genpd->states[genpd->state_idx].rejected++; in genpd_power_off()
643 genpd->status = GENPD_STATE_OFF; in genpd_power_off()
645 genpd->states[genpd->state_idx].usage++; in genpd_power_off()
647 list_for_each_entry(link, &genpd->child_links, child_node) { in genpd_power_off()
648 genpd_sd_counter_dec(link->parent); in genpd_power_off()
649 genpd_lock_nested(link->parent, depth + 1); in genpd_power_off()
650 genpd_power_off(link->parent, false, depth + 1); in genpd_power_off()
651 genpd_unlock(link->parent); in genpd_power_off()
658 * genpd_power_on - Restore power to a given PM domain and its parents.
678 list_for_each_entry(link, &genpd->child_links, child_node) { in genpd_power_on()
679 struct generic_pm_domain *parent = link->parent; in genpd_power_on()
697 genpd->status = GENPD_STATE_ON; in genpd_power_on()
704 &genpd->child_links, in genpd_power_on()
706 genpd_sd_counter_dec(link->parent); in genpd_power_on()
707 genpd_lock_nested(link->parent, depth + 1); in genpd_power_on()
708 genpd_power_off(link->parent, false, depth + 1); in genpd_power_on()
709 genpd_unlock(link->parent); in genpd_power_on()
729 dev = gpd_data->base.dev; in genpd_dev_pm_qos_notifier()
735 spin_lock_irq(&dev->power.lock); in genpd_dev_pm_qos_notifier()
737 pdd = dev->power.subsys_data ? in genpd_dev_pm_qos_notifier()
738 dev->power.subsys_data->domain_data : NULL; in genpd_dev_pm_qos_notifier()
740 to_gpd_data(pdd)->td.constraint_changed = true; in genpd_dev_pm_qos_notifier()
743 genpd = ERR_PTR(-ENODATA); in genpd_dev_pm_qos_notifier()
746 spin_unlock_irq(&dev->power.lock); in genpd_dev_pm_qos_notifier()
750 genpd->max_off_time_changed = true; in genpd_dev_pm_qos_notifier()
754 dev = dev->parent; in genpd_dev_pm_qos_notifier()
755 if (!dev || dev->power.ignore_children) in genpd_dev_pm_qos_notifier()
763 * genpd_power_off_work_fn - Power off PM domain whose subdomain count is 0.
778 * __genpd_runtime_suspend - walk the hierarchy of ->runtime_suspend() callbacks
785 if (dev->type && dev->type->pm) in __genpd_runtime_suspend()
786 cb = dev->type->pm->runtime_suspend; in __genpd_runtime_suspend()
787 else if (dev->class && dev->class->pm) in __genpd_runtime_suspend()
788 cb = dev->class->pm->runtime_suspend; in __genpd_runtime_suspend()
789 else if (dev->bus && dev->bus->pm) in __genpd_runtime_suspend()
790 cb = dev->bus->pm->runtime_suspend; in __genpd_runtime_suspend()
794 if (!cb && dev->driver && dev->driver->pm) in __genpd_runtime_suspend()
795 cb = dev->driver->pm->runtime_suspend; in __genpd_runtime_suspend()
801 * __genpd_runtime_resume - walk the hierarchy of ->runtime_resume() callbacks
808 if (dev->type && dev->type->pm) in __genpd_runtime_resume()
809 cb = dev->type->pm->runtime_resume; in __genpd_runtime_resume()
810 else if (dev->class && dev->class->pm) in __genpd_runtime_resume()
811 cb = dev->class->pm->runtime_resume; in __genpd_runtime_resume()
812 else if (dev->bus && dev->bus->pm) in __genpd_runtime_resume()
813 cb = dev->bus->pm->runtime_resume; in __genpd_runtime_resume()
817 if (!cb && dev->driver && dev->driver->pm) in __genpd_runtime_resume()
818 cb = dev->driver->pm->runtime_resume; in __genpd_runtime_resume()
824 * genpd_runtime_suspend - Suspend a device belonging to I/O PM domain.
835 struct gpd_timing_data *td = &dev_gpd_data(dev)->td; in genpd_runtime_suspend()
845 return -EINVAL; in genpd_runtime_suspend()
848 * A runtime PM centric subsystem/driver may re-use the runtime PM in genpd_runtime_suspend()
853 suspend_ok = genpd->gov ? genpd->gov->suspend_ok : NULL; in genpd_runtime_suspend()
855 return -EBUSY; in genpd_runtime_suspend()
875 if (elapsed_ns > td->suspend_latency_ns) { in genpd_runtime_suspend()
876 td->suspend_latency_ns = elapsed_ns; in genpd_runtime_suspend()
879 genpd->max_off_time_changed = true; in genpd_runtime_suspend()
880 td->constraint_changed = true; in genpd_runtime_suspend()
899 * genpd_runtime_resume - Resume a device belonging to I/O PM domain.
909 struct gpd_timing_data *td = &dev_gpd_data(dev)->td; in genpd_runtime_resume()
920 return -EINVAL; in genpd_runtime_resume()
955 if (elapsed_ns > td->resume_latency_ns) { in genpd_runtime_resume()
956 td->resume_latency_ns = elapsed_ns; in genpd_runtime_resume()
959 genpd->max_off_time_changed = true; in genpd_runtime_resume()
960 td->constraint_changed = true; in genpd_runtime_resume()
988 * genpd_power_off_unused - Power off all PM domains with no devices in use.
1013 * genpd_sync_power_off - Synchronously power off a PM domain and its parents.
1033 if (genpd->suspended_count != genpd->device_count in genpd_sync_power_off()
1034 || atomic_read(&genpd->sd_count) > 0) in genpd_sync_power_off()
1038 genpd->state_idx = genpd->state_count - 1; in genpd_sync_power_off()
1042 genpd->status = GENPD_STATE_OFF; in genpd_sync_power_off()
1044 list_for_each_entry(link, &genpd->child_links, child_node) { in genpd_sync_power_off()
1045 genpd_sd_counter_dec(link->parent); in genpd_sync_power_off()
1048 genpd_lock_nested(link->parent, depth + 1); in genpd_sync_power_off()
1050 genpd_sync_power_off(link->parent, use_lock, depth + 1); in genpd_sync_power_off()
1053 genpd_unlock(link->parent); in genpd_sync_power_off()
1058 * genpd_sync_power_on - Synchronously power on a PM domain and its parents.
1075 list_for_each_entry(link, &genpd->child_links, child_node) { in genpd_sync_power_on()
1076 genpd_sd_counter_inc(link->parent); in genpd_sync_power_on()
1079 genpd_lock_nested(link->parent, depth + 1); in genpd_sync_power_on()
1081 genpd_sync_power_on(link->parent, use_lock, depth + 1); in genpd_sync_power_on()
1084 genpd_unlock(link->parent); in genpd_sync_power_on()
1088 genpd->status = GENPD_STATE_ON; in genpd_sync_power_on()
1092 * resume_needed - Check whether to resume a device before system suspend.
1120 * genpd_prepare - Start power transition of a device in a PM domain.
1123 * Start a power transition of a device (during a system-wide power transition)
1137 return -EINVAL; in genpd_prepare()
1149 if (genpd->prepared_count++ == 0) in genpd_prepare()
1150 genpd->suspended_count = 0; in genpd_prepare()
1158 genpd->prepared_count--; in genpd_prepare()
1168 * genpd_finish_suspend - Completion of suspend or hibernation of device in an
1183 return -EINVAL; in genpd_finish_suspend()
1192 if (dev->power.wakeup_path && genpd_is_active_wakeup(genpd)) in genpd_finish_suspend()
1195 if (genpd->dev_ops.stop && genpd->dev_ops.start && in genpd_finish_suspend()
1208 genpd->suspended_count++; in genpd_finish_suspend()
1216 * genpd_suspend_noirq - Completion of suspend of device in an I/O PM domain.
1230 * genpd_resume_noirq - Start of resume of device in an I/O PM domain.
1244 return -EINVAL; in genpd_resume_noirq()
1246 if (dev->power.wakeup_path && genpd_is_active_wakeup(genpd)) in genpd_resume_noirq()
1251 genpd->suspended_count--; in genpd_resume_noirq()
1254 if (genpd->dev_ops.stop && genpd->dev_ops.start && in genpd_resume_noirq()
1265 * genpd_freeze_noirq - Completion of freezing a device in an I/O PM domain.
1282 return -EINVAL; in genpd_freeze_noirq()
1288 if (genpd->dev_ops.stop && genpd->dev_ops.start && in genpd_freeze_noirq()
1296 * genpd_thaw_noirq - Early thaw of device in an I/O PM domain.
1311 return -EINVAL; in genpd_thaw_noirq()
1313 if (genpd->dev_ops.stop && genpd->dev_ops.start && in genpd_thaw_noirq()
1324 * genpd_poweroff_noirq - Completion of hibernation of device in an
1339 * genpd_restore_noirq - Start of restore of device in an I/O PM domain.
1354 return -EINVAL; in genpd_restore_noirq()
1361 if (genpd->suspended_count++ == 0) { in genpd_restore_noirq()
1367 genpd->status = GENPD_STATE_OFF; in genpd_restore_noirq()
1373 if (genpd->dev_ops.stop && genpd->dev_ops.start && in genpd_restore_noirq()
1384 * genpd_complete - Complete power transition of a device in a power domain.
1387 * Complete a power transition of a device (during a system-wide power
1406 genpd->prepared_count--; in genpd_complete()
1407 if (!genpd->prepared_count) in genpd_complete()
1428 genpd->suspended_count++; in genpd_switch_state()
1432 genpd->suspended_count--; in genpd_switch_state()
1440 * dev_pm_genpd_suspend - Synchronously try to suspend the genpd for @dev
1445 * suspend-to-idle to suspend a corresponding CPU device that is attached to a
1455 * dev_pm_genpd_resume - Synchronously try to resume the genpd for @dev
1459 * during the syscore resume phase. It may also be called during suspend-to-idle
1460 * to resume a corresponding CPU device that is attached to a genpd.
1492 ret = -ENOMEM; in genpd_alloc_dev_data()
1496 gpd_data->base.dev = dev; in genpd_alloc_dev_data()
1497 gpd_data->td.constraint_changed = true; in genpd_alloc_dev_data()
1498 gpd_data->td.effective_constraint_ns = PM_QOS_RESUME_LATENCY_NO_CONSTRAINT_NS; in genpd_alloc_dev_data()
1499 gpd_data->nb.notifier_call = genpd_dev_pm_qos_notifier; in genpd_alloc_dev_data()
1500 gpd_data->next_wakeup = KTIME_MAX; in genpd_alloc_dev_data()
1502 spin_lock_irq(&dev->power.lock); in genpd_alloc_dev_data()
1504 if (dev->power.subsys_data->domain_data) { in genpd_alloc_dev_data()
1505 ret = -EINVAL; in genpd_alloc_dev_data()
1509 dev->power.subsys_data->domain_data = &gpd_data->base; in genpd_alloc_dev_data()
1511 spin_unlock_irq(&dev->power.lock); in genpd_alloc_dev_data()
1516 spin_unlock_irq(&dev->power.lock); in genpd_alloc_dev_data()
1526 spin_lock_irq(&dev->power.lock); in genpd_free_dev_data()
1528 dev->power.subsys_data->domain_data = NULL; in genpd_free_dev_data()
1530 spin_unlock_irq(&dev->power.lock); in genpd_free_dev_data()
1537 int cpu, bool set, unsigned int depth) in genpd_update_cpumask() argument
1544 list_for_each_entry(link, &genpd->child_links, child_node) { in genpd_update_cpumask()
1545 struct generic_pm_domain *parent = link->parent; in genpd_update_cpumask()
1548 genpd_update_cpumask(parent, cpu, set, depth + 1); in genpd_update_cpumask()
1553 cpumask_set_cpu(cpu, genpd->cpus); in genpd_update_cpumask()
1555 cpumask_clear_cpu(cpu, genpd->cpus); in genpd_update_cpumask()
1558 static void genpd_set_cpumask(struct generic_pm_domain *genpd, int cpu) in genpd_set_cpumask() argument
1560 if (cpu >= 0) in genpd_set_cpumask()
1561 genpd_update_cpumask(genpd, cpu, true, 0); in genpd_set_cpumask()
1564 static void genpd_clear_cpumask(struct generic_pm_domain *genpd, int cpu) in genpd_clear_cpumask() argument
1566 if (cpu >= 0) in genpd_clear_cpumask()
1567 genpd_update_cpumask(genpd, cpu, false, 0); in genpd_clear_cpumask()
1572 int cpu; in genpd_get_cpu() local
1575 return -1; in genpd_get_cpu()
1577 for_each_possible_cpu(cpu) { in genpd_get_cpu()
1578 if (get_cpu_device(cpu) == dev) in genpd_get_cpu()
1579 return cpu; in genpd_get_cpu()
1582 return -1; in genpd_get_cpu()
1594 return -EINVAL; in genpd_add_device()
1600 gpd_data->cpu = genpd_get_cpu(genpd, base_dev); in genpd_add_device()
1602 ret = genpd->attach_dev ? genpd->attach_dev(genpd, dev) : 0; in genpd_add_device()
1608 genpd_set_cpumask(genpd, gpd_data->cpu); in genpd_add_device()
1609 dev_pm_domain_set(dev, &genpd->domain); in genpd_add_device()
1611 genpd->device_count++; in genpd_add_device()
1612 genpd->max_off_time_changed = true; in genpd_add_device()
1614 list_add_tail(&gpd_data->base.list_node, &genpd->dev_list); in genpd_add_device()
1621 dev_pm_qos_add_notifier(dev, &gpd_data->nb, in genpd_add_device()
1628 * pm_genpd_add_device - Add a device to an I/O PM domain.
1653 pdd = dev->power.subsys_data->domain_data; in genpd_remove_device()
1655 dev_pm_qos_remove_notifier(dev, &gpd_data->nb, in genpd_remove_device()
1660 if (genpd->prepared_count > 0) { in genpd_remove_device()
1661 ret = -EAGAIN; in genpd_remove_device()
1665 genpd->device_count--; in genpd_remove_device()
1666 genpd->max_off_time_changed = true; in genpd_remove_device()
1668 genpd_clear_cpumask(genpd, gpd_data->cpu); in genpd_remove_device()
1671 list_del_init(&pdd->list_node); in genpd_remove_device()
1675 if (genpd->detach_dev) in genpd_remove_device()
1676 genpd->detach_dev(genpd, dev); in genpd_remove_device()
1684 dev_pm_qos_add_notifier(dev, &gpd_data->nb, DEV_PM_QOS_RESUME_LATENCY); in genpd_remove_device()
1690 * pm_genpd_remove_device - Remove a device from an I/O PM domain.
1698 return -EINVAL; in pm_genpd_remove_device()
1705 * dev_pm_genpd_add_notifier - Add a genpd power on/off notifier for @dev
1727 return -ENODEV; in dev_pm_genpd_add_notifier()
1729 if (WARN_ON(!dev->power.subsys_data || in dev_pm_genpd_add_notifier()
1730 !dev->power.subsys_data->domain_data)) in dev_pm_genpd_add_notifier()
1731 return -EINVAL; in dev_pm_genpd_add_notifier()
1733 gpd_data = to_gpd_data(dev->power.subsys_data->domain_data); in dev_pm_genpd_add_notifier()
1734 if (gpd_data->power_nb) in dev_pm_genpd_add_notifier()
1735 return -EEXIST; in dev_pm_genpd_add_notifier()
1738 ret = raw_notifier_chain_register(&genpd->power_notifiers, nb); in dev_pm_genpd_add_notifier()
1743 genpd->name); in dev_pm_genpd_add_notifier()
1747 gpd_data->power_nb = nb; in dev_pm_genpd_add_notifier()
1753 * dev_pm_genpd_remove_notifier - Remove a genpd power on/off notifier for @dev
1773 return -ENODEV; in dev_pm_genpd_remove_notifier()
1775 if (WARN_ON(!dev->power.subsys_data || in dev_pm_genpd_remove_notifier()
1776 !dev->power.subsys_data->domain_data)) in dev_pm_genpd_remove_notifier()
1777 return -EINVAL; in dev_pm_genpd_remove_notifier()
1779 gpd_data = to_gpd_data(dev->power.subsys_data->domain_data); in dev_pm_genpd_remove_notifier()
1780 if (!gpd_data->power_nb) in dev_pm_genpd_remove_notifier()
1781 return -ENODEV; in dev_pm_genpd_remove_notifier()
1784 ret = raw_notifier_chain_unregister(&genpd->power_notifiers, in dev_pm_genpd_remove_notifier()
1785 gpd_data->power_nb); in dev_pm_genpd_remove_notifier()
1790 genpd->name); in dev_pm_genpd_remove_notifier()
1794 gpd_data->power_nb = NULL; in dev_pm_genpd_remove_notifier()
1807 return -EINVAL; in genpd_add_subdomain()
1816 genpd->name, subdomain->name); in genpd_add_subdomain()
1817 return -EINVAL; in genpd_add_subdomain()
1822 return -ENOMEM; in genpd_add_subdomain()
1828 ret = -EINVAL; in genpd_add_subdomain()
1832 list_for_each_entry(itr, &genpd->parent_links, parent_node) { in genpd_add_subdomain()
1833 if (itr->child == subdomain && itr->parent == genpd) { in genpd_add_subdomain()
1834 ret = -EINVAL; in genpd_add_subdomain()
1839 link->parent = genpd; in genpd_add_subdomain()
1840 list_add_tail(&link->parent_node, &genpd->parent_links); in genpd_add_subdomain()
1841 link->child = subdomain; in genpd_add_subdomain()
1842 list_add_tail(&link->child_node, &subdomain->child_links); in genpd_add_subdomain()
1855 * pm_genpd_add_subdomain - Add a subdomain to an I/O PM domain.
1873 * pm_genpd_remove_subdomain - Remove a subdomain from an I/O PM domain.
1881 int ret = -EINVAL; in pm_genpd_remove_subdomain()
1884 return -EINVAL; in pm_genpd_remove_subdomain()
1889 if (!list_empty(&subdomain->parent_links) || subdomain->device_count) { in pm_genpd_remove_subdomain()
1891 genpd->name, subdomain->name); in pm_genpd_remove_subdomain()
1892 ret = -EBUSY; in pm_genpd_remove_subdomain()
1896 list_for_each_entry_safe(link, l, &genpd->parent_links, parent_node) { in pm_genpd_remove_subdomain()
1897 if (link->child != subdomain) in pm_genpd_remove_subdomain()
1900 list_del(&link->parent_node); in pm_genpd_remove_subdomain()
1901 list_del(&link->child_node); in pm_genpd_remove_subdomain()
1930 return -ENOMEM; in genpd_set_default_power_state()
1932 genpd->states = state; in genpd_set_default_power_state()
1933 genpd->state_count = 1; in genpd_set_default_power_state()
1934 genpd->free_states = genpd_free_default_power_state; in genpd_set_default_power_state()
1941 if (genpd->flags & GENPD_FLAG_IRQ_SAFE) { in genpd_lock_init()
1942 spin_lock_init(&genpd->slock); in genpd_lock_init()
1943 genpd->lock_ops = &genpd_spin_ops; in genpd_lock_init()
1945 mutex_init(&genpd->mlock); in genpd_lock_init()
1946 genpd->lock_ops = &genpd_mtx_ops; in genpd_lock_init()
1951 * pm_genpd_init - Initialize a generic I/O PM domain object.
1964 return -EINVAL; in pm_genpd_init()
1966 INIT_LIST_HEAD(&genpd->parent_links); in pm_genpd_init()
1967 INIT_LIST_HEAD(&genpd->child_links); in pm_genpd_init()
1968 INIT_LIST_HEAD(&genpd->dev_list); in pm_genpd_init()
1969 RAW_INIT_NOTIFIER_HEAD(&genpd->power_notifiers); in pm_genpd_init()
1971 genpd->gov = gov; in pm_genpd_init()
1972 INIT_WORK(&genpd->power_off_work, genpd_power_off_work_fn); in pm_genpd_init()
1973 atomic_set(&genpd->sd_count, 0); in pm_genpd_init()
1974 genpd->status = is_off ? GENPD_STATE_OFF : GENPD_STATE_ON; in pm_genpd_init()
1975 genpd->device_count = 0; in pm_genpd_init()
1976 genpd->max_off_time_ns = -1; in pm_genpd_init()
1977 genpd->max_off_time_changed = true; in pm_genpd_init()
1978 genpd->next_wakeup = KTIME_MAX; in pm_genpd_init()
1979 genpd->provider = NULL; in pm_genpd_init()
1980 genpd->has_provider = false; in pm_genpd_init()
1981 genpd->accounting_time = ktime_get(); in pm_genpd_init()
1982 genpd->domain.ops.runtime_suspend = genpd_runtime_suspend; in pm_genpd_init()
1983 genpd->domain.ops.runtime_resume = genpd_runtime_resume; in pm_genpd_init()
1984 genpd->domain.ops.prepare = genpd_prepare; in pm_genpd_init()
1985 genpd->domain.ops.suspend_noirq = genpd_suspend_noirq; in pm_genpd_init()
1986 genpd->domain.ops.resume_noirq = genpd_resume_noirq; in pm_genpd_init()
1987 genpd->domain.ops.freeze_noirq = genpd_freeze_noirq; in pm_genpd_init()
1988 genpd->domain.ops.thaw_noirq = genpd_thaw_noirq; in pm_genpd_init()
1989 genpd->domain.ops.poweroff_noirq = genpd_poweroff_noirq; in pm_genpd_init()
1990 genpd->domain.ops.restore_noirq = genpd_restore_noirq; in pm_genpd_init()
1991 genpd->domain.ops.complete = genpd_complete; in pm_genpd_init()
1992 genpd->domain.start = genpd_dev_pm_start; in pm_genpd_init()
1994 if (genpd->flags & GENPD_FLAG_PM_CLK) { in pm_genpd_init()
1995 genpd->dev_ops.stop = pm_clk_suspend; in pm_genpd_init()
1996 genpd->dev_ops.start = pm_clk_resume; in pm_genpd_init()
1999 /* Always-on domains must be powered on at initialization. */ in pm_genpd_init()
2002 return -EINVAL; in pm_genpd_init()
2005 !zalloc_cpumask_var(&genpd->cpus, GFP_KERNEL)) in pm_genpd_init()
2006 return -ENOMEM; in pm_genpd_init()
2009 if (genpd->state_count == 0) { in pm_genpd_init()
2013 free_cpumask_var(genpd->cpus); in pm_genpd_init()
2016 } else if (!gov && genpd->state_count > 1) { in pm_genpd_init()
2017 pr_warn("%s: no governor for states\n", genpd->name); in pm_genpd_init()
2020 device_initialize(&genpd->dev); in pm_genpd_init()
2021 dev_set_name(&genpd->dev, "%s", genpd->name); in pm_genpd_init()
2024 list_add(&genpd->gpd_list_node, &gpd_list); in pm_genpd_init()
2037 return -EINVAL; in genpd_remove()
2041 if (genpd->has_provider) { in genpd_remove()
2043 pr_err("Provider present, unable to remove %s\n", genpd->name); in genpd_remove()
2044 return -EBUSY; in genpd_remove()
2047 if (!list_empty(&genpd->parent_links) || genpd->device_count) { in genpd_remove()
2049 pr_err("%s: unable to remove %s\n", __func__, genpd->name); in genpd_remove()
2050 return -EBUSY; in genpd_remove()
2053 list_for_each_entry_safe(link, l, &genpd->child_links, child_node) { in genpd_remove()
2054 list_del(&link->parent_node); in genpd_remove()
2055 list_del(&link->child_node); in genpd_remove()
2059 list_del(&genpd->gpd_list_node); in genpd_remove()
2062 cancel_work_sync(&genpd->power_off_work); in genpd_remove()
2064 free_cpumask_var(genpd->cpus); in genpd_remove()
2065 if (genpd->free_states) in genpd_remove()
2066 genpd->free_states(genpd->states, genpd->state_count); in genpd_remove()
2068 pr_debug("%s: removed %s\n", __func__, genpd->name); in genpd_remove()
2074 * pm_genpd_remove - Remove a generic I/O PM domain
2078 * - Removes the PM domain as a subdomain to any parent domains,
2080 * - Removes the PM domain from the list of registered PM domains.
2111 * - genpd_xlate_simple() for 1:1 device tree node to PM domain mapping.
2112 * - genpd_xlate_onecell() for mapping of multiple PM domains per node by
2117 * struct of_genpd_provider - PM domain provider registration structure
2120 * @xlate: Provider-specific xlate callback mapping a set of specifier cells
2137 * genpd_xlate_simple() - Xlate function for direct node-domain mapping
2139 * @data: xlate function private data - pointer to struct generic_pm_domain
2153 * genpd_xlate_onecell() - Xlate function using a single index.
2155 * @data: xlate function private data - pointer to struct genpd_onecell_data
2167 unsigned int idx = genpdspec->args[0]; in genpd_xlate_onecell()
2169 if (genpdspec->args_count != 1) in genpd_xlate_onecell()
2170 return ERR_PTR(-EINVAL); in genpd_xlate_onecell()
2172 if (idx >= genpd_data->num_domains) { in genpd_xlate_onecell()
2174 return ERR_PTR(-EINVAL); in genpd_xlate_onecell()
2177 if (!genpd_data->domains[idx]) in genpd_xlate_onecell()
2178 return ERR_PTR(-ENOENT); in genpd_xlate_onecell()
2180 return genpd_data->domains[idx]; in genpd_xlate_onecell()
2184 * genpd_add_provider() - Register a PM domain provider for a node
2196 return -ENOMEM; in genpd_add_provider()
2198 cp->node = of_node_get(np); in genpd_add_provider()
2199 cp->data = data; in genpd_add_provider()
2200 cp->xlate = xlate; in genpd_add_provider()
2201 fwnode_dev_initialized(&np->fwnode, true); in genpd_add_provider()
2204 list_add(&cp->link, &of_genpd_providers); in genpd_add_provider()
2222 * of_genpd_add_provider_simple() - Register a simple PM domain provider
2229 int ret = -EINVAL; in of_genpd_add_provider_simple()
2232 return -EINVAL; in of_genpd_add_provider_simple()
2239 genpd->dev.of_node = np; in of_genpd_add_provider_simple()
2242 if (genpd->set_performance_state) { in of_genpd_add_provider_simple()
2243 ret = dev_pm_opp_of_add_table(&genpd->dev); in of_genpd_add_provider_simple()
2245 if (ret != -EPROBE_DEFER) in of_genpd_add_provider_simple()
2246 dev_err(&genpd->dev, "Failed to add OPP table: %d\n", in of_genpd_add_provider_simple()
2255 genpd->opp_table = dev_pm_opp_get_opp_table(&genpd->dev); in of_genpd_add_provider_simple()
2256 WARN_ON(IS_ERR(genpd->opp_table)); in of_genpd_add_provider_simple()
2261 if (genpd->set_performance_state) { in of_genpd_add_provider_simple()
2262 dev_pm_opp_put_opp_table(genpd->opp_table); in of_genpd_add_provider_simple()
2263 dev_pm_opp_of_remove_table(&genpd->dev); in of_genpd_add_provider_simple()
2269 genpd->provider = &np->fwnode; in of_genpd_add_provider_simple()
2270 genpd->has_provider = true; in of_genpd_add_provider_simple()
2280 * of_genpd_add_provider_onecell() - Register a onecell PM domain provider
2289 int ret = -EINVAL; in of_genpd_add_provider_onecell()
2292 return -EINVAL; in of_genpd_add_provider_onecell()
2296 if (!data->xlate) in of_genpd_add_provider_onecell()
2297 data->xlate = genpd_xlate_onecell; in of_genpd_add_provider_onecell()
2299 for (i = 0; i < data->num_domains; i++) { in of_genpd_add_provider_onecell()
2300 genpd = data->domains[i]; in of_genpd_add_provider_onecell()
2307 genpd->dev.of_node = np; in of_genpd_add_provider_onecell()
2310 if (genpd->set_performance_state) { in of_genpd_add_provider_onecell()
2311 ret = dev_pm_opp_of_add_table_indexed(&genpd->dev, i); in of_genpd_add_provider_onecell()
2313 if (ret != -EPROBE_DEFER) in of_genpd_add_provider_onecell()
2314 dev_err(&genpd->dev, "Failed to add OPP table for index %d: %d\n", in of_genpd_add_provider_onecell()
2323 genpd->opp_table = dev_pm_opp_get_opp_table_indexed(&genpd->dev, i); in of_genpd_add_provider_onecell()
2324 WARN_ON(IS_ERR(genpd->opp_table)); in of_genpd_add_provider_onecell()
2327 genpd->provider = &np->fwnode; in of_genpd_add_provider_onecell()
2328 genpd->has_provider = true; in of_genpd_add_provider_onecell()
2331 ret = genpd_add_provider(np, data->xlate, data); in of_genpd_add_provider_onecell()
2340 while (i--) { in of_genpd_add_provider_onecell()
2341 genpd = data->domains[i]; in of_genpd_add_provider_onecell()
2346 genpd->provider = NULL; in of_genpd_add_provider_onecell()
2347 genpd->has_provider = false; in of_genpd_add_provider_onecell()
2349 if (genpd->set_performance_state) { in of_genpd_add_provider_onecell()
2350 dev_pm_opp_put_opp_table(genpd->opp_table); in of_genpd_add_provider_onecell()
2351 dev_pm_opp_of_remove_table(&genpd->dev); in of_genpd_add_provider_onecell()
2362 * of_genpd_del_provider() - Remove a previously registered PM domain provider
2373 if (cp->node == np) { in of_genpd_del_provider()
2380 if (gpd->provider == &np->fwnode) { in of_genpd_del_provider()
2381 gpd->has_provider = false; in of_genpd_del_provider()
2383 if (!gpd->set_performance_state) in of_genpd_del_provider()
2386 dev_pm_opp_put_opp_table(gpd->opp_table); in of_genpd_del_provider()
2387 dev_pm_opp_of_remove_table(&gpd->dev); in of_genpd_del_provider()
2391 fwnode_dev_initialized(&cp->node->fwnode, false); in of_genpd_del_provider()
2392 list_del(&cp->link); in of_genpd_del_provider()
2393 of_node_put(cp->node); in of_genpd_del_provider()
2404 * genpd_get_from_provider() - Look-up PM domain
2405 * @genpdspec: OF phandle args to use for look-up
2417 struct generic_pm_domain *genpd = ERR_PTR(-ENOENT); in genpd_get_from_provider()
2421 return ERR_PTR(-EINVAL); in genpd_get_from_provider()
2427 if (provider->node == genpdspec->np) in genpd_get_from_provider()
2428 genpd = provider->xlate(genpdspec, provider->data); in genpd_get_from_provider()
2439 * of_genpd_add_device() - Add a device to an I/O PM domain
2440 * @genpdspec: OF phandle args to use for look-up PM domain
2443 * Looks-up an I/O PM domain based upon phandle args provided and adds
2469 * of_genpd_add_subdomain - Add a subdomain to an I/O PM domain.
2470 * @parent_spec: OF phandle args to use for parent PM domain look-up
2471 * @subdomain_spec: OF phandle args to use for subdomain look-up
2473 * Looks-up a parent PM domain and subdomain based upon phandle args
2507 * of_genpd_remove_subdomain - Remove a subdomain from an I/O PM domain.
2508 * @parent_spec: OF phandle args to use for parent PM domain look-up
2509 * @subdomain_spec: OF phandle args to use for subdomain look-up
2511 * Looks-up a parent PM domain and subdomain based upon phandle args
2545 * of_genpd_remove_last - Remove the last PM domain registered for a provider
2559 struct generic_pm_domain *gpd, *tmp, *genpd = ERR_PTR(-ENOENT); in of_genpd_remove_last()
2563 return ERR_PTR(-EINVAL); in of_genpd_remove_last()
2567 if (gpd->provider == &np->fwnode) { in of_genpd_remove_last()
2581 of_node_put(dev->of_node); in genpd_release_dev()
2590 * genpd_dev_pm_detach - Detach a device from its PM domain.
2607 dev_dbg(dev, "removing from PM domain %s\n", pd->name); in genpd_dev_pm_detach()
2611 if (ret != -EAGAIN) in genpd_dev_pm_detach()
2620 pd->name, ret); in genpd_dev_pm_detach()
2628 if (dev->bus == &genpd_bus_type) in genpd_dev_pm_detach()
2650 ret = of_parse_phandle_with_args(dev->of_node, "power-domains", in __genpd_dev_pm_attach()
2651 "#power-domain-cells", index, &pd_args); in __genpd_dev_pm_attach()
2665 dev_dbg(dev, "adding to PM domain %s\n", pd->name); in __genpd_dev_pm_attach()
2671 if (ret != -EPROBE_DEFER) in __genpd_dev_pm_attach()
2673 pd->name, ret); in __genpd_dev_pm_attach()
2677 dev->pm_domain->detach = genpd_dev_pm_detach; in __genpd_dev_pm_attach()
2678 dev->pm_domain->sync = genpd_dev_pm_sync; in __genpd_dev_pm_attach()
2689 return ret ? -EPROBE_DEFER : 1; in __genpd_dev_pm_attach()
2693 * genpd_dev_pm_attach - Attach a device to its PM domain using DT.
2700 * PM domain or when multiple power-domains exists for it, else a negative error
2701 * code. Note that if a power-domain exists for the device, but it cannot be
2702 * found or turned on, then return -EPROBE_DEFER to ensure that the device is
2703 * not probed and to re-try again later.
2707 if (!dev->of_node) in genpd_dev_pm_attach()
2714 if (of_count_phandle_with_args(dev->of_node, "power-domains", in genpd_dev_pm_attach()
2715 "#power-domain-cells") != 1) in genpd_dev_pm_attach()
2723 * genpd_dev_pm_attach_by_id - Associate a device with one of its PM domains.
2729 * pm_domain ops. To deal with detaching of the virtual device, the ->detach()
2734 * failures. If a power-domain exists for the device, but cannot be found or
2735 * turned on, then ERR_PTR(-EPROBE_DEFER) is returned to ensure that the device
2736 * is not probed and to re-try again later.
2745 if (!dev->of_node) in genpd_dev_pm_attach_by_id()
2749 num_domains = of_count_phandle_with_args(dev->of_node, "power-domains", in genpd_dev_pm_attach_by_id()
2750 "#power-domain-cells"); in genpd_dev_pm_attach_by_id()
2757 return ERR_PTR(-ENOMEM); in genpd_dev_pm_attach_by_id()
2760 virt_dev->bus = &genpd_bus_type; in genpd_dev_pm_attach_by_id()
2761 virt_dev->release = genpd_release_dev; in genpd_dev_pm_attach_by_id()
2762 virt_dev->of_node = of_node_get(dev->of_node); in genpd_dev_pm_attach_by_id()
2785 * genpd_dev_pm_attach_by_name - Associate a device with one of its PM domains.
2790 * power-domain-names DT property. For further description see
2797 if (!dev->of_node) in genpd_dev_pm_attach_by_name()
2800 index = of_property_match_string(dev->of_node, "power-domain-names", in genpd_dev_pm_attach_by_name()
2809 { .compatible = "domain-idle-state", },
2820 err = of_property_read_u32(state_node, "entry-latency-us", in genpd_parse_state()
2823 pr_debug(" * %pOF missing entry-latency-us property\n", in genpd_parse_state()
2825 return -EINVAL; in genpd_parse_state()
2828 err = of_property_read_u32(state_node, "exit-latency-us", in genpd_parse_state()
2831 pr_debug(" * %pOF missing exit-latency-us property\n", in genpd_parse_state()
2833 return -EINVAL; in genpd_parse_state()
2836 err = of_property_read_u32(state_node, "min-residency-us", &residency); in genpd_parse_state()
2838 genpd_state->residency_ns = 1000 * residency; in genpd_parse_state()
2840 genpd_state->power_on_latency_ns = 1000 * exit_latency; in genpd_parse_state()
2841 genpd_state->power_off_latency_ns = 1000 * entry_latency; in genpd_parse_state()
2842 genpd_state->fwnode = &state_node->fwnode; in genpd_parse_state()
2855 ret = of_count_phandle_with_args(dn, "domain-idle-states", NULL); in genpd_iterate_idle_states()
2857 return ret == -ENOENT ? 0 : ret; in genpd_iterate_idle_states()
2860 of_for_each_phandle(&it, ret, dn, "domain-idle-states", NULL, 0) { in genpd_iterate_idle_states()
2913 return -ENOMEM; in of_genpd_parse_idle_states()
2918 return ret < 0 ? ret : -EINVAL; in of_genpd_parse_idle_states()
2929 * pm_genpd_opp_to_performance_state - Gets performance state of the genpd from its OPP node.
2931 * @genpd_dev: Genpd's device for which the performance-state needs to be found.
2936 * platform specific genpd->opp_to_performance_state() callback to translate
2949 if (unlikely(!genpd->opp_to_performance_state)) in pm_genpd_opp_to_performance_state()
2953 state = genpd->opp_to_performance_state(genpd, opp); in pm_genpd_opp_to_performance_state()
2986 if (dev->power.runtime_error) in rtpm_status_str()
2988 else if (dev->power.disable_depth) in rtpm_status_str()
2990 else if (dev->power.runtime_status < ARRAY_SIZE(status_lookup)) in rtpm_status_str()
2991 p = status_lookup[dev->power.runtime_status]; in rtpm_status_str()
3013 return -ERESTARTSYS; in genpd_summary_one()
3015 if (WARN_ON(genpd->status >= ARRAY_SIZE(status_lookup))) in genpd_summary_one()
3018 snprintf(state, sizeof(state), "%s-%u", in genpd_summary_one()
3019 status_lookup[genpd->status], genpd->state_idx); in genpd_summary_one()
3022 status_lookup[genpd->status]); in genpd_summary_one()
3023 seq_printf(s, "%-30s %-15s ", genpd->name, state); in genpd_summary_one()
3028 * Also genpd->name is immutable. in genpd_summary_one()
3030 list_for_each_entry(link, &genpd->parent_links, parent_node) { in genpd_summary_one()
3031 seq_printf(s, "%s", link->child->name); in genpd_summary_one()
3032 if (!list_is_last(&link->parent_node, &genpd->parent_links)) in genpd_summary_one()
3036 list_for_each_entry(pm_data, &genpd->dev_list, list_node) { in genpd_summary_one()
3037 kobj_path = kobject_get_path(&pm_data->dev->kobj, in genpd_summary_one()
3043 seq_printf(s, "\n %-50s ", kobj_path); in genpd_summary_one()
3044 rtpm_status_str(s, pm_data->dev); in genpd_summary_one()
3062 seq_puts(s, "----------------------------------------------------------------------\n"); in summary_show()
3066 return -ERESTARTSYS; in summary_show()
3085 struct generic_pm_domain *genpd = s->private; in status_show()
3090 return -ERESTARTSYS; in status_show()
3092 if (WARN_ON_ONCE(genpd->status >= ARRAY_SIZE(status_lookup))) in status_show()
3095 if (genpd->status == GENPD_STATE_OFF) in status_show()
3096 seq_printf(s, "%s-%u\n", status_lookup[genpd->status], in status_show()
3097 genpd->state_idx); in status_show()
3099 seq_printf(s, "%s\n", status_lookup[genpd->status]); in status_show()
3107 struct generic_pm_domain *genpd = s->private; in sub_domains_show()
3113 return -ERESTARTSYS; in sub_domains_show()
3115 list_for_each_entry(link, &genpd->parent_links, parent_node) in sub_domains_show()
3116 seq_printf(s, "%s\n", link->child->name); in sub_domains_show()
3124 struct generic_pm_domain *genpd = s->private; in idle_states_show()
3130 return -ERESTARTSYS; in idle_states_show()
3134 for (i = 0; i < genpd->state_count; i++) { in idle_states_show()
3138 if ((genpd->status == GENPD_STATE_OFF) && in idle_states_show()
3139 (genpd->state_idx == i)) in idle_states_show()
3140 delta = ktime_sub(ktime_get(), genpd->accounting_time); in idle_states_show()
3143 ktime_add(genpd->states[i].idle_time, delta)); in idle_states_show()
3144 seq_printf(s, "S%-13i %-14lld %-14llu %llu\n", i, msecs, in idle_states_show()
3145 genpd->states[i].usage, genpd->states[i].rejected); in idle_states_show()
3154 struct generic_pm_domain *genpd = s->private; in active_time_show()
3160 return -ERESTARTSYS; in active_time_show()
3162 if (genpd->status == GENPD_STATE_ON) in active_time_show()
3163 delta = ktime_sub(ktime_get(), genpd->accounting_time); in active_time_show()
3166 ktime_add(genpd->on_time, delta))); in active_time_show()
3174 struct generic_pm_domain *genpd = s->private; in total_idle_time_show()
3181 return -ERESTARTSYS; in total_idle_time_show()
3183 for (i = 0; i < genpd->state_count; i++) { in total_idle_time_show()
3185 if ((genpd->status == GENPD_STATE_OFF) && in total_idle_time_show()
3186 (genpd->state_idx == i)) in total_idle_time_show()
3187 delta = ktime_sub(ktime_get(), genpd->accounting_time); in total_idle_time_show()
3189 total = ktime_add(total, genpd->states[i].idle_time); in total_idle_time_show()
3202 struct generic_pm_domain *genpd = s->private; in devices_show()
3209 return -ERESTARTSYS; in devices_show()
3211 list_for_each_entry(pm_data, &genpd->dev_list, list_node) { in devices_show()
3212 kobj_path = kobject_get_path(&pm_data->dev->kobj, in devices_show()
3228 struct generic_pm_domain *genpd = s->private; in perf_state_show()
3231 return -ERESTARTSYS; in perf_state_show()
3233 seq_printf(s, "%u\n", genpd->performance_state); in perf_state_show()
3255 d = debugfs_create_dir(genpd->name, genpd_debugfs_dir); in genpd_debug_add()
3269 if (genpd->set_performance_state) in genpd_debug_add()