Lines Matching refs:desc
55 static int alloc_masks(struct irq_desc *desc, int node) in alloc_masks() argument
57 if (!zalloc_cpumask_var_node(&desc->irq_common_data.affinity, in alloc_masks()
62 if (!zalloc_cpumask_var_node(&desc->irq_common_data.effective_affinity, in alloc_masks()
64 free_cpumask_var(desc->irq_common_data.affinity); in alloc_masks()
70 if (!zalloc_cpumask_var_node(&desc->pending_mask, GFP_KERNEL, node)) { in alloc_masks()
72 free_cpumask_var(desc->irq_common_data.effective_affinity); in alloc_masks()
74 free_cpumask_var(desc->irq_common_data.affinity); in alloc_masks()
81 static void desc_smp_init(struct irq_desc *desc, int node, in desc_smp_init() argument
86 cpumask_copy(desc->irq_common_data.affinity, affinity); in desc_smp_init()
89 cpumask_clear(desc->pending_mask); in desc_smp_init()
92 desc->irq_common_data.node = node; in desc_smp_init()
98 alloc_masks(struct irq_desc *desc, int node) { return 0; } in alloc_masks() argument
100 desc_smp_init(struct irq_desc *desc, int node, const struct cpumask *affinity) { } in desc_smp_init() argument
103 static void desc_set_defaults(unsigned int irq, struct irq_desc *desc, int node, in desc_set_defaults() argument
108 desc->irq_common_data.handler_data = NULL; in desc_set_defaults()
109 desc->irq_common_data.msi_desc = NULL; in desc_set_defaults()
111 desc->irq_data.common = &desc->irq_common_data; in desc_set_defaults()
112 desc->irq_data.irq = irq; in desc_set_defaults()
113 desc->irq_data.chip = &no_irq_chip; in desc_set_defaults()
114 desc->irq_data.chip_data = NULL; in desc_set_defaults()
115 irq_settings_clr_and_set(desc, ~0, _IRQ_DEFAULT_INIT_FLAGS); in desc_set_defaults()
116 irqd_set(&desc->irq_data, IRQD_IRQ_DISABLED); in desc_set_defaults()
117 irqd_set(&desc->irq_data, IRQD_IRQ_MASKED); in desc_set_defaults()
118 desc->handle_irq = handle_bad_irq; in desc_set_defaults()
119 desc->depth = 1; in desc_set_defaults()
120 desc->irq_count = 0; in desc_set_defaults()
121 desc->irqs_unhandled = 0; in desc_set_defaults()
122 desc->tot_count = 0; in desc_set_defaults()
123 desc->name = NULL; in desc_set_defaults()
124 desc->owner = owner; in desc_set_defaults()
126 *per_cpu_ptr(desc->kstat_irqs, cpu) = 0; in desc_set_defaults()
127 desc_smp_init(desc, node, affinity); in desc_set_defaults()
149 struct irq_desc *desc = container_of(kobj, struct irq_desc, kobj); in per_cpu_count_show() local
155 unsigned int c = irq_desc_kstat_cpu(desc, cpu); in per_cpu_count_show()
169 struct irq_desc *desc = container_of(kobj, struct irq_desc, kobj); in chip_name_show() local
172 raw_spin_lock_irq(&desc->lock); in chip_name_show()
173 if (desc->irq_data.chip && desc->irq_data.chip->name) { in chip_name_show()
175 desc->irq_data.chip->name); in chip_name_show()
177 raw_spin_unlock_irq(&desc->lock); in chip_name_show()
186 struct irq_desc *desc = container_of(kobj, struct irq_desc, kobj); in hwirq_show() local
189 raw_spin_lock_irq(&desc->lock); in hwirq_show()
190 if (desc->irq_data.domain) in hwirq_show()
191 ret = sprintf(buf, "%lu\n", desc->irq_data.hwirq); in hwirq_show()
192 raw_spin_unlock_irq(&desc->lock); in hwirq_show()
201 struct irq_desc *desc = container_of(kobj, struct irq_desc, kobj); in type_show() local
204 raw_spin_lock_irq(&desc->lock); in type_show()
206 irqd_is_level_type(&desc->irq_data) ? "level" : "edge"); in type_show()
207 raw_spin_unlock_irq(&desc->lock); in type_show()
217 struct irq_desc *desc = container_of(kobj, struct irq_desc, kobj); in wakeup_show() local
220 raw_spin_lock_irq(&desc->lock); in wakeup_show()
222 irqd_is_wakeup_set(&desc->irq_data) ? "enabled" : "disabled"); in wakeup_show()
223 raw_spin_unlock_irq(&desc->lock); in wakeup_show()
233 struct irq_desc *desc = container_of(kobj, struct irq_desc, kobj); in name_show() local
236 raw_spin_lock_irq(&desc->lock); in name_show()
237 if (desc->name) in name_show()
238 ret = scnprintf(buf, PAGE_SIZE, "%s\n", desc->name); in name_show()
239 raw_spin_unlock_irq(&desc->lock); in name_show()
248 struct irq_desc *desc = container_of(kobj, struct irq_desc, kobj); in actions_show() local
253 raw_spin_lock_irq(&desc->lock); in actions_show()
254 for_each_action_of_desc(desc, action) { in actions_show()
259 raw_spin_unlock_irq(&desc->lock); in actions_show()
286 static void irq_sysfs_add(int irq, struct irq_desc *desc) in irq_sysfs_add() argument
294 if (kobject_add(&desc->kobj, irq_kobj_base, "%d", irq)) in irq_sysfs_add()
297 desc->istate |= IRQS_SYSFS; in irq_sysfs_add()
301 static void irq_sysfs_del(struct irq_desc *desc) in irq_sysfs_del() argument
309 if (desc->istate & IRQS_SYSFS) in irq_sysfs_del()
310 kobject_del(&desc->kobj); in irq_sysfs_del()
315 struct irq_desc *desc; in irq_sysfs_init() local
328 for_each_irq_desc(irq, desc) in irq_sysfs_init()
329 irq_sysfs_add(irq, desc); in irq_sysfs_init()
342 static void irq_sysfs_add(int irq, struct irq_desc *desc) {} in irq_sysfs_add() argument
343 static void irq_sysfs_del(struct irq_desc *desc) {} in irq_sysfs_del() argument
349 static void irq_insert_desc(unsigned int irq, struct irq_desc *desc) in irq_insert_desc() argument
351 radix_tree_insert(&irq_desc_tree, irq, desc); in irq_insert_desc()
368 static void free_masks(struct irq_desc *desc) in free_masks() argument
371 free_cpumask_var(desc->pending_mask); in free_masks()
373 free_cpumask_var(desc->irq_common_data.affinity); in free_masks()
375 free_cpumask_var(desc->irq_common_data.effective_affinity); in free_masks()
379 static inline void free_masks(struct irq_desc *desc) { } in free_masks() argument
396 struct irq_desc *desc; in alloc_desc() local
398 desc = kzalloc_node(sizeof(*desc), GFP_KERNEL, node); in alloc_desc()
399 if (!desc) in alloc_desc()
402 desc->kstat_irqs = alloc_percpu(unsigned int); in alloc_desc()
403 if (!desc->kstat_irqs) in alloc_desc()
406 if (alloc_masks(desc, node)) in alloc_desc()
409 raw_spin_lock_init(&desc->lock); in alloc_desc()
410 lockdep_set_class(&desc->lock, &irq_desc_lock_class); in alloc_desc()
411 mutex_init(&desc->request_mutex); in alloc_desc()
412 init_rcu_head(&desc->rcu); in alloc_desc()
413 init_waitqueue_head(&desc->wait_for_threads); in alloc_desc()
415 desc_set_defaults(irq, desc, node, affinity, owner); in alloc_desc()
416 irqd_set(&desc->irq_data, flags); in alloc_desc()
417 kobject_init(&desc->kobj, &irq_kobj_type); in alloc_desc()
419 return desc; in alloc_desc()
422 free_percpu(desc->kstat_irqs); in alloc_desc()
424 kfree(desc); in alloc_desc()
430 struct irq_desc *desc = container_of(kobj, struct irq_desc, kobj); in irq_kobj_release() local
432 free_masks(desc); in irq_kobj_release()
433 free_percpu(desc->kstat_irqs); in irq_kobj_release()
434 kfree(desc); in irq_kobj_release()
439 struct irq_desc *desc = container_of(rhp, struct irq_desc, rcu); in delayed_free_desc() local
441 kobject_put(&desc->kobj); in delayed_free_desc()
446 struct irq_desc *desc = irq_to_desc(irq); in free_desc() local
448 irq_remove_debugfs_entry(desc); in free_desc()
449 unregister_irq_proc(irq, desc); in free_desc()
460 irq_sysfs_del(desc); in free_desc()
469 call_rcu(&desc->rcu, delayed_free_desc); in free_desc()
476 struct irq_desc *desc; in alloc_descs() local
501 desc = alloc_desc(start + i, node, flags, mask, owner); in alloc_descs()
502 if (!desc) in alloc_descs()
504 irq_insert_desc(start + i, desc); in alloc_descs()
505 irq_sysfs_add(start + i, desc); in alloc_descs()
506 irq_add_debugfs_entry(start + i, desc); in alloc_descs()
528 struct irq_desc *desc; in early_irq_init() local
547 desc = alloc_desc(i, node, 0, NULL, NULL); in early_irq_init()
549 irq_insert_desc(i, desc); in early_irq_init()
567 struct irq_desc *desc; in early_irq_init() local
573 desc = irq_desc; in early_irq_init()
577 desc[i].kstat_irqs = alloc_percpu(unsigned int); in early_irq_init()
578 alloc_masks(&desc[i], node); in early_irq_init()
579 raw_spin_lock_init(&desc[i].lock); in early_irq_init()
580 lockdep_set_class(&desc[i].lock, &irq_desc_lock_class); in early_irq_init()
581 mutex_init(&desc[i].request_mutex); in early_irq_init()
582 init_waitqueue_head(&desc[i].wait_for_threads); in early_irq_init()
583 desc_set_defaults(i, &desc[i], node, NULL, NULL); in early_irq_init()
596 struct irq_desc *desc = irq_to_desc(irq); in free_desc() local
599 raw_spin_lock_irqsave(&desc->lock, flags); in free_desc()
600 desc_set_defaults(irq, desc, irq_desc_get_node(desc), NULL, NULL); in free_desc()
601 raw_spin_unlock_irqrestore(&desc->lock, flags); in free_desc()
611 struct irq_desc *desc = irq_to_desc(start + i); in alloc_descs() local
613 desc->owner = owner; in alloc_descs()
640 int handle_irq_desc(struct irq_desc *desc) in handle_irq_desc() argument
644 if (!desc) in handle_irq_desc()
647 data = irq_desc_get_irq_data(desc); in handle_irq_desc()
651 generic_handle_irq_desc(desc); in handle_irq_desc()
846 struct irq_desc *desc = irq_to_desc(irq); in __irq_get_desc_lock() local
848 if (desc) { in __irq_get_desc_lock()
851 !irq_settings_is_per_cpu_devid(desc)) in __irq_get_desc_lock()
855 irq_settings_is_per_cpu_devid(desc)) in __irq_get_desc_lock()
860 chip_bus_lock(desc); in __irq_get_desc_lock()
861 raw_spin_lock_irqsave(&desc->lock, *flags); in __irq_get_desc_lock()
863 return desc; in __irq_get_desc_lock()
866 void __irq_put_desc_unlock(struct irq_desc *desc, unsigned long flags, bool bus) in __irq_put_desc_unlock() argument
867 __releases(&desc->lock) in __irq_put_desc_unlock()
869 raw_spin_unlock_irqrestore(&desc->lock, flags); in __irq_put_desc_unlock()
871 chip_bus_sync_unlock(desc); in __irq_put_desc_unlock()
877 struct irq_desc *desc = irq_to_desc(irq); in irq_set_percpu_devid_partition() local
879 if (!desc) in irq_set_percpu_devid_partition()
882 if (desc->percpu_enabled) in irq_set_percpu_devid_partition()
885 desc->percpu_enabled = kzalloc(sizeof(*desc->percpu_enabled), GFP_KERNEL); in irq_set_percpu_devid_partition()
887 if (!desc->percpu_enabled) in irq_set_percpu_devid_partition()
891 desc->percpu_affinity = affinity; in irq_set_percpu_devid_partition()
893 desc->percpu_affinity = cpu_possible_mask; in irq_set_percpu_devid_partition()
906 struct irq_desc *desc = irq_to_desc(irq); in irq_get_percpu_devid_partition() local
908 if (!desc || !desc->percpu_enabled) in irq_get_percpu_devid_partition()
912 cpumask_copy(affinity, desc->percpu_affinity); in irq_get_percpu_devid_partition()
934 struct irq_desc *desc = irq_to_desc(irq); in kstat_irqs_cpu() local
936 return desc && desc->kstat_irqs ? in kstat_irqs_cpu()
937 *per_cpu_ptr(desc->kstat_irqs, cpu) : 0; in kstat_irqs_cpu()
940 static bool irq_is_nmi(struct irq_desc *desc) in irq_is_nmi() argument
942 return desc->istate & IRQS_NMI; in irq_is_nmi()
947 struct irq_desc *desc = irq_to_desc(irq); in kstat_irqs() local
951 if (!desc || !desc->kstat_irqs) in kstat_irqs()
953 if (!irq_settings_is_per_cpu_devid(desc) && in kstat_irqs()
954 !irq_settings_is_per_cpu(desc) && in kstat_irqs()
955 !irq_is_nmi(desc)) in kstat_irqs()
956 return data_race(desc->tot_count); in kstat_irqs()
959 sum += data_race(*per_cpu_ptr(desc->kstat_irqs, cpu)); in kstat_irqs()
987 struct irq_desc *desc = irq_to_desc(irq); in __irq_set_lockdep_class() local
989 if (desc) { in __irq_set_lockdep_class()
990 lockdep_set_class(&desc->lock, lock_class); in __irq_set_lockdep_class()
991 lockdep_set_class(&desc->request_mutex, request_class); in __irq_set_lockdep_class()