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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * IRQ subsystem internal functions and variables:
4 *
5 * Do not ever include this file from anything else than
6 * kernel/irq/. Do not even think about using any information outside
7 * of this file for your non core code.
8 */
9#include <linux/irqdesc.h>
10#include <linux/kernel_stat.h>
11#include <linux/pm_runtime.h>
12#include <linux/sched/clock.h>
13
14#ifdef CONFIG_SPARSE_IRQ
15# define IRQ_BITMAP_BITS (NR_IRQS + 8196)
16#else
17# define IRQ_BITMAP_BITS NR_IRQS
18#endif
19
20#define istate core_internal_state__do_not_mess_with_it
21
22extern bool noirqdebug;
23
24extern struct irqaction chained_action;
25
26/*
27 * Bits used by threaded handlers:
28 * IRQTF_RUNTHREAD - signals that the interrupt handler thread should run
29 * IRQTF_WARNED - warning "IRQ_WAKE_THREAD w/o thread_fn" has been printed
30 * IRQTF_AFFINITY - irq thread is requested to adjust affinity
31 * IRQTF_FORCED_THREAD - irq action is force threaded
32 */
33enum {
34 IRQTF_RUNTHREAD,
35 IRQTF_WARNED,
36 IRQTF_AFFINITY,
37 IRQTF_FORCED_THREAD,
38};
39
40/*
41 * Bit masks for desc->core_internal_state__do_not_mess_with_it
42 *
43 * IRQS_AUTODETECT - autodetection in progress
44 * IRQS_SPURIOUS_DISABLED - was disabled due to spurious interrupt
45 * detection
46 * IRQS_POLL_INPROGRESS - polling in progress
47 * IRQS_ONESHOT - irq is not unmasked in primary handler
48 * IRQS_REPLAY - irq is replayed
49 * IRQS_WAITING - irq is waiting
50 * IRQS_PENDING - irq is pending and replayed later
51 * IRQS_SUSPENDED - irq is suspended
52 * IRQS_NMI - irq line is used to deliver NMIs
53 */
54enum {
55 IRQS_AUTODETECT = 0x00000001,
56 IRQS_SPURIOUS_DISABLED = 0x00000002,
57 IRQS_POLL_INPROGRESS = 0x00000008,
58 IRQS_ONESHOT = 0x00000020,
59 IRQS_REPLAY = 0x00000040,
60 IRQS_WAITING = 0x00000080,
61 IRQS_PENDING = 0x00000200,
62 IRQS_SUSPENDED = 0x00000800,
63 IRQS_TIMINGS = 0x00001000,
64 IRQS_NMI = 0x00002000,
65};
66
67#include "debug.h"
68#include "settings.h"
69
70extern int __irq_set_trigger(struct irq_desc *desc, unsigned long flags);
71extern void __disable_irq(struct irq_desc *desc);
72extern void __enable_irq(struct irq_desc *desc);
73
74#define IRQ_RESEND true
75#define IRQ_NORESEND false
76
77#define IRQ_START_FORCE true
78#define IRQ_START_COND false
79
80extern int irq_activate(struct irq_desc *desc);
81extern int irq_activate_and_startup(struct irq_desc *desc, bool resend);
82extern int irq_startup(struct irq_desc *desc, bool resend, bool force);
83
84extern void irq_shutdown(struct irq_desc *desc);
85extern void irq_shutdown_and_deactivate(struct irq_desc *desc);
86extern void irq_enable(struct irq_desc *desc);
87extern void irq_disable(struct irq_desc *desc);
88extern void irq_percpu_enable(struct irq_desc *desc, unsigned int cpu);
89extern void irq_percpu_disable(struct irq_desc *desc, unsigned int cpu);
90extern void mask_irq(struct irq_desc *desc);
91extern void unmask_irq(struct irq_desc *desc);
92extern void unmask_threaded_irq(struct irq_desc *desc);
93
94#ifdef CONFIG_SPARSE_IRQ
95static inline void irq_mark_irq(unsigned int irq) { }
96#else
97extern void irq_mark_irq(unsigned int irq);
98#endif
99
100extern int __irq_get_irqchip_state(struct irq_data *data,
101 enum irqchip_irq_state which,
102 bool *state);
103
104extern void init_kstat_irqs(struct irq_desc *desc, int node, int nr);
105
106irqreturn_t __handle_irq_event_percpu(struct irq_desc *desc, unsigned int *flags);
107irqreturn_t handle_irq_event_percpu(struct irq_desc *desc);
108irqreturn_t handle_irq_event(struct irq_desc *desc);
109
110/* Resending of interrupts :*/
111void check_irq_resend(struct irq_desc *desc);
112bool irq_wait_for_poll(struct irq_desc *desc);
113void __irq_wake_thread(struct irq_desc *desc, struct irqaction *action);
114
115#ifdef CONFIG_PROC_FS
116extern void register_irq_proc(unsigned int irq, struct irq_desc *desc);
117extern void unregister_irq_proc(unsigned int irq, struct irq_desc *desc);
118extern void register_handler_proc(unsigned int irq, struct irqaction *action);
119extern void unregister_handler_proc(unsigned int irq, struct irqaction *action);
120#else
121static inline void register_irq_proc(unsigned int irq, struct irq_desc *desc) { }
122static inline void unregister_irq_proc(unsigned int irq, struct irq_desc *desc) { }
123static inline void register_handler_proc(unsigned int irq,
124 struct irqaction *action) { }
125static inline void unregister_handler_proc(unsigned int irq,
126 struct irqaction *action) { }
127#endif
128
129extern bool irq_can_set_affinity_usr(unsigned int irq);
130
131extern int irq_select_affinity_usr(unsigned int irq);
132
133extern void irq_set_thread_affinity(struct irq_desc *desc);
134
135extern int irq_do_set_affinity(struct irq_data *data,
136 const struct cpumask *dest, bool force);
137
138#ifdef CONFIG_SMP
139extern int irq_setup_affinity(struct irq_desc *desc);
140#else
141static inline int irq_setup_affinity(struct irq_desc *desc) { return 0; }
142#endif
143
144/* Inline functions for support of irq chips on slow busses */
145static inline void chip_bus_lock(struct irq_desc *desc)
146{
147 if (unlikely(desc->irq_data.chip->irq_bus_lock))
148 desc->irq_data.chip->irq_bus_lock(&desc->irq_data);
149}
150
151static inline void chip_bus_sync_unlock(struct irq_desc *desc)
152{
153 if (unlikely(desc->irq_data.chip->irq_bus_sync_unlock))
154 desc->irq_data.chip->irq_bus_sync_unlock(&desc->irq_data);
155}
156
157#define _IRQ_DESC_CHECK (1 << 0)
158#define _IRQ_DESC_PERCPU (1 << 1)
159
160#define IRQ_GET_DESC_CHECK_GLOBAL (_IRQ_DESC_CHECK)
161#define IRQ_GET_DESC_CHECK_PERCPU (_IRQ_DESC_CHECK | _IRQ_DESC_PERCPU)
162
163#define for_each_action_of_desc(desc, act) \
164 for (act = desc->action; act; act = act->next)
165
166struct irq_desc *
167__irq_get_desc_lock(unsigned int irq, unsigned long *flags, bool bus,
168 unsigned int check);
169void __irq_put_desc_unlock(struct irq_desc *desc, unsigned long flags, bool bus);
170
171static inline struct irq_desc *
172irq_get_desc_buslock(unsigned int irq, unsigned long *flags, unsigned int check)
173{
174 return __irq_get_desc_lock(irq, flags, true, check);
175}
176
177static inline void
178irq_put_desc_busunlock(struct irq_desc *desc, unsigned long flags)
179{
180 __irq_put_desc_unlock(desc, flags, true);
181}
182
183static inline struct irq_desc *
184irq_get_desc_lock(unsigned int irq, unsigned long *flags, unsigned int check)
185{
186 return __irq_get_desc_lock(irq, flags, false, check);
187}
188
189static inline void
190irq_put_desc_unlock(struct irq_desc *desc, unsigned long flags)
191{
192 __irq_put_desc_unlock(desc, flags, false);
193}
194
195#define __irqd_to_state(d) ACCESS_PRIVATE((d)->common, state_use_accessors)
196
197static inline unsigned int irqd_get(struct irq_data *d)
198{
199 return __irqd_to_state(d);
200}
201
202/*
203 * Manipulation functions for irq_data.state
204 */
205static inline void irqd_set_move_pending(struct irq_data *d)
206{
207 __irqd_to_state(d) |= IRQD_SETAFFINITY_PENDING;
208}
209
210static inline void irqd_clr_move_pending(struct irq_data *d)
211{
212 __irqd_to_state(d) &= ~IRQD_SETAFFINITY_PENDING;
213}
214
215static inline void irqd_set_managed_shutdown(struct irq_data *d)
216{
217 __irqd_to_state(d) |= IRQD_MANAGED_SHUTDOWN;
218}
219
220static inline void irqd_clr_managed_shutdown(struct irq_data *d)
221{
222 __irqd_to_state(d) &= ~IRQD_MANAGED_SHUTDOWN;
223}
224
225static inline void irqd_clear(struct irq_data *d, unsigned int mask)
226{
227 __irqd_to_state(d) &= ~mask;
228}
229
230static inline void irqd_set(struct irq_data *d, unsigned int mask)
231{
232 __irqd_to_state(d) |= mask;
233}
234
235static inline bool irqd_has_set(struct irq_data *d, unsigned int mask)
236{
237 return __irqd_to_state(d) & mask;
238}
239
240static inline void irq_state_set_disabled(struct irq_desc *desc)
241{
242 irqd_set(&desc->irq_data, IRQD_IRQ_DISABLED);
243}
244
245static inline void irq_state_set_masked(struct irq_desc *desc)
246{
247 irqd_set(&desc->irq_data, IRQD_IRQ_MASKED);
248}
249
250#undef __irqd_to_state
251
252static inline void __kstat_incr_irqs_this_cpu(struct irq_desc *desc)
253{
254 __this_cpu_inc(*desc->kstat_irqs);
255 __this_cpu_inc(kstat.irqs_sum);
256}
257
258static inline void kstat_incr_irqs_this_cpu(struct irq_desc *desc)
259{
260 __kstat_incr_irqs_this_cpu(desc);
261 desc->tot_count++;
262}
263
264static inline int irq_desc_get_node(struct irq_desc *desc)
265{
266 return irq_common_data_get_node(&desc->irq_common_data);
267}
268
269static inline int irq_desc_is_chained(struct irq_desc *desc)
270{
271 return (desc->action && desc->action == &chained_action);
272}
273
274#ifdef CONFIG_PM_SLEEP
275bool irq_pm_check_wakeup(struct irq_desc *desc);
276void irq_pm_install_action(struct irq_desc *desc, struct irqaction *action);
277void irq_pm_remove_action(struct irq_desc *desc, struct irqaction *action);
278#else
279static inline bool irq_pm_check_wakeup(struct irq_desc *desc) { return false; }
280static inline void
281irq_pm_install_action(struct irq_desc *desc, struct irqaction *action) { }
282static inline void
283irq_pm_remove_action(struct irq_desc *desc, struct irqaction *action) { }
284#endif
285
286#ifdef CONFIG_IRQ_TIMINGS
287
288#define IRQ_TIMINGS_SHIFT 5
289#define IRQ_TIMINGS_SIZE (1 << IRQ_TIMINGS_SHIFT)
290#define IRQ_TIMINGS_MASK (IRQ_TIMINGS_SIZE - 1)
291
292/**
293 * struct irq_timings - irq timings storing structure
294 * @values: a circular buffer of u64 encoded <timestamp,irq> values
295 * @count: the number of elements in the array
296 */
297struct irq_timings {
298 u64 values[IRQ_TIMINGS_SIZE];
299 int count;
300};
301
302DECLARE_PER_CPU(struct irq_timings, irq_timings);
303
304extern void irq_timings_free(int irq);
305extern int irq_timings_alloc(int irq);
306
307static inline void irq_remove_timings(struct irq_desc *desc)
308{
309 desc->istate &= ~IRQS_TIMINGS;
310
311 irq_timings_free(irq_desc_get_irq(desc));
312}
313
314static inline void irq_setup_timings(struct irq_desc *desc, struct irqaction *act)
315{
316 int irq = irq_desc_get_irq(desc);
317 int ret;
318
319 /*
320 * We don't need the measurement because the idle code already
321 * knows the next expiry event.
322 */
323 if (act->flags & __IRQF_TIMER)
324 return;
325
326 /*
327 * In case the timing allocation fails, we just want to warn,
328 * not fail, so letting the system boot anyway.
329 */
330 ret = irq_timings_alloc(irq);
331 if (ret) {
332 pr_warn("Failed to allocate irq timing stats for irq%d (%d)",
333 irq, ret);
334 return;
335 }
336
337 desc->istate |= IRQS_TIMINGS;
338}
339
340extern void irq_timings_enable(void);
341extern void irq_timings_disable(void);
342
343DECLARE_STATIC_KEY_FALSE(irq_timing_enabled);
344
345/*
346 * The interrupt number and the timestamp are encoded into a single
347 * u64 variable to optimize the size.
348 * 48 bit time stamp and 16 bit IRQ number is way sufficient.
349 * Who cares an IRQ after 78 hours of idle time?
350 */
351static inline u64 irq_timing_encode(u64 timestamp, int irq)
352{
353 return (timestamp << 16) | irq;
354}
355
356static inline int irq_timing_decode(u64 value, u64 *timestamp)
357{
358 *timestamp = value >> 16;
359 return value & U16_MAX;
360}
361
362static __always_inline void irq_timings_push(u64 ts, int irq)
363{
364 struct irq_timings *timings = this_cpu_ptr(&irq_timings);
365
366 timings->values[timings->count & IRQ_TIMINGS_MASK] =
367 irq_timing_encode(ts, irq);
368
369 timings->count++;
370}
371
372/*
373 * The function record_irq_time is only called in one place in the
374 * interrupts handler. We want this function always inline so the code
375 * inside is embedded in the function and the static key branching
376 * code can act at the higher level. Without the explicit
377 * __always_inline we can end up with a function call and a small
378 * overhead in the hotpath for nothing.
379 */
380static __always_inline void record_irq_time(struct irq_desc *desc)
381{
382 if (!static_branch_likely(&irq_timing_enabled))
383 return;
384
385 if (desc->istate & IRQS_TIMINGS)
386 irq_timings_push(local_clock(), irq_desc_get_irq(desc));
387}
388#else
389static inline void irq_remove_timings(struct irq_desc *desc) {}
390static inline void irq_setup_timings(struct irq_desc *desc,
391 struct irqaction *act) {};
392static inline void record_irq_time(struct irq_desc *desc) {}
393#endif /* CONFIG_IRQ_TIMINGS */
394
395
396#ifdef CONFIG_GENERIC_IRQ_CHIP
397void irq_init_generic_chip(struct irq_chip_generic *gc, const char *name,
398 int num_ct, unsigned int irq_base,
399 void __iomem *reg_base, irq_flow_handler_t handler);
400#else
401static inline void
402irq_init_generic_chip(struct irq_chip_generic *gc, const char *name,
403 int num_ct, unsigned int irq_base,
404 void __iomem *reg_base, irq_flow_handler_t handler) { }
405#endif /* CONFIG_GENERIC_IRQ_CHIP */
406
407#ifdef CONFIG_GENERIC_PENDING_IRQ
408static inline bool irq_can_move_pcntxt(struct irq_data *data)
409{
410 return irqd_can_move_in_process_context(data);
411}
412static inline bool irq_move_pending(struct irq_data *data)
413{
414 return irqd_is_setaffinity_pending(data);
415}
416static inline void
417irq_copy_pending(struct irq_desc *desc, const struct cpumask *mask)
418{
419 cpumask_copy(desc->pending_mask, mask);
420}
421static inline void
422irq_get_pending(struct cpumask *mask, struct irq_desc *desc)
423{
424 cpumask_copy(mask, desc->pending_mask);
425}
426static inline struct cpumask *irq_desc_get_pending_mask(struct irq_desc *desc)
427{
428 return desc->pending_mask;
429}
430bool irq_fixup_move_pending(struct irq_desc *desc, bool force_clear);
431#else /* CONFIG_GENERIC_PENDING_IRQ */
432static inline bool irq_can_move_pcntxt(struct irq_data *data)
433{
434 return true;
435}
436static inline bool irq_move_pending(struct irq_data *data)
437{
438 return false;
439}
440static inline void
441irq_copy_pending(struct irq_desc *desc, const struct cpumask *mask)
442{
443}
444static inline void
445irq_get_pending(struct cpumask *mask, struct irq_desc *desc)
446{
447}
448static inline struct cpumask *irq_desc_get_pending_mask(struct irq_desc *desc)
449{
450 return NULL;
451}
452static inline bool irq_fixup_move_pending(struct irq_desc *desc, bool fclear)
453{
454 return false;
455}
456#endif /* !CONFIG_GENERIC_PENDING_IRQ */
457
458#if !defined(CONFIG_IRQ_DOMAIN) || !defined(CONFIG_IRQ_DOMAIN_HIERARCHY)
459static inline int irq_domain_activate_irq(struct irq_data *data, bool reserve)
460{
461 irqd_set_activated(data);
462 return 0;
463}
464static inline void irq_domain_deactivate_irq(struct irq_data *data)
465{
466 irqd_clr_activated(data);
467}
468#endif
469
470#ifdef CONFIG_GENERIC_IRQ_DEBUGFS
471#include <linux/debugfs.h>
472
473void irq_add_debugfs_entry(unsigned int irq, struct irq_desc *desc);
474static inline void irq_remove_debugfs_entry(struct irq_desc *desc)
475{
476 debugfs_remove(desc->debugfs_file);
477 kfree(desc->dev_name);
478}
479void irq_debugfs_copy_devname(int irq, struct device *dev);
480# ifdef CONFIG_IRQ_DOMAIN
481void irq_domain_debugfs_init(struct dentry *root);
482# else
483static inline void irq_domain_debugfs_init(struct dentry *root)
484{
485}
486# endif
487#else /* CONFIG_GENERIC_IRQ_DEBUGFS */
488static inline void irq_add_debugfs_entry(unsigned int irq, struct irq_desc *d)
489{
490}
491static inline void irq_remove_debugfs_entry(struct irq_desc *d)
492{
493}
494static inline void irq_debugfs_copy_devname(int irq, struct device *dev)
495{
496}
497#endif /* CONFIG_GENERIC_IRQ_DEBUGFS */
1/*
2 * IRQ subsystem internal functions and variables:
3 *
4 * Do not ever include this file from anything else than
5 * kernel/irq/. Do not even think about using any information outside
6 * of this file for your non core code.
7 */
8#include <linux/irqdesc.h>
9#include <linux/kernel_stat.h>
10
11#ifdef CONFIG_SPARSE_IRQ
12# define IRQ_BITMAP_BITS (NR_IRQS + 8196)
13#else
14# define IRQ_BITMAP_BITS NR_IRQS
15#endif
16
17#define istate core_internal_state__do_not_mess_with_it
18
19extern bool noirqdebug;
20
21extern struct irqaction chained_action;
22
23/*
24 * Bits used by threaded handlers:
25 * IRQTF_RUNTHREAD - signals that the interrupt handler thread should run
26 * IRQTF_WARNED - warning "IRQ_WAKE_THREAD w/o thread_fn" has been printed
27 * IRQTF_AFFINITY - irq thread is requested to adjust affinity
28 * IRQTF_FORCED_THREAD - irq action is force threaded
29 */
30enum {
31 IRQTF_RUNTHREAD,
32 IRQTF_WARNED,
33 IRQTF_AFFINITY,
34 IRQTF_FORCED_THREAD,
35};
36
37/*
38 * Bit masks for desc->core_internal_state__do_not_mess_with_it
39 *
40 * IRQS_AUTODETECT - autodetection in progress
41 * IRQS_SPURIOUS_DISABLED - was disabled due to spurious interrupt
42 * detection
43 * IRQS_POLL_INPROGRESS - polling in progress
44 * IRQS_ONESHOT - irq is not unmasked in primary handler
45 * IRQS_REPLAY - irq is replayed
46 * IRQS_WAITING - irq is waiting
47 * IRQS_PENDING - irq is pending and replayed later
48 * IRQS_SUSPENDED - irq is suspended
49 */
50enum {
51 IRQS_AUTODETECT = 0x00000001,
52 IRQS_SPURIOUS_DISABLED = 0x00000002,
53 IRQS_POLL_INPROGRESS = 0x00000008,
54 IRQS_ONESHOT = 0x00000020,
55 IRQS_REPLAY = 0x00000040,
56 IRQS_WAITING = 0x00000080,
57 IRQS_PENDING = 0x00000200,
58 IRQS_SUSPENDED = 0x00000800,
59};
60
61#include "debug.h"
62#include "settings.h"
63
64extern int __irq_set_trigger(struct irq_desc *desc, unsigned long flags);
65extern void __disable_irq(struct irq_desc *desc);
66extern void __enable_irq(struct irq_desc *desc);
67
68extern int irq_startup(struct irq_desc *desc, bool resend);
69extern void irq_shutdown(struct irq_desc *desc);
70extern void irq_enable(struct irq_desc *desc);
71extern void irq_disable(struct irq_desc *desc);
72extern void irq_percpu_enable(struct irq_desc *desc, unsigned int cpu);
73extern void irq_percpu_disable(struct irq_desc *desc, unsigned int cpu);
74extern void mask_irq(struct irq_desc *desc);
75extern void unmask_irq(struct irq_desc *desc);
76extern void unmask_threaded_irq(struct irq_desc *desc);
77
78#ifdef CONFIG_SPARSE_IRQ
79static inline void irq_mark_irq(unsigned int irq) { }
80#else
81extern void irq_mark_irq(unsigned int irq);
82#endif
83
84extern void init_kstat_irqs(struct irq_desc *desc, int node, int nr);
85
86irqreturn_t handle_irq_event_percpu(struct irq_desc *desc);
87irqreturn_t handle_irq_event(struct irq_desc *desc);
88
89/* Resending of interrupts :*/
90void check_irq_resend(struct irq_desc *desc);
91bool irq_wait_for_poll(struct irq_desc *desc);
92void __irq_wake_thread(struct irq_desc *desc, struct irqaction *action);
93
94#ifdef CONFIG_PROC_FS
95extern void register_irq_proc(unsigned int irq, struct irq_desc *desc);
96extern void unregister_irq_proc(unsigned int irq, struct irq_desc *desc);
97extern void register_handler_proc(unsigned int irq, struct irqaction *action);
98extern void unregister_handler_proc(unsigned int irq, struct irqaction *action);
99#else
100static inline void register_irq_proc(unsigned int irq, struct irq_desc *desc) { }
101static inline void unregister_irq_proc(unsigned int irq, struct irq_desc *desc) { }
102static inline void register_handler_proc(unsigned int irq,
103 struct irqaction *action) { }
104static inline void unregister_handler_proc(unsigned int irq,
105 struct irqaction *action) { }
106#endif
107
108extern int irq_select_affinity_usr(unsigned int irq, struct cpumask *mask);
109
110extern void irq_set_thread_affinity(struct irq_desc *desc);
111
112extern int irq_do_set_affinity(struct irq_data *data,
113 const struct cpumask *dest, bool force);
114
115/* Inline functions for support of irq chips on slow busses */
116static inline void chip_bus_lock(struct irq_desc *desc)
117{
118 if (unlikely(desc->irq_data.chip->irq_bus_lock))
119 desc->irq_data.chip->irq_bus_lock(&desc->irq_data);
120}
121
122static inline void chip_bus_sync_unlock(struct irq_desc *desc)
123{
124 if (unlikely(desc->irq_data.chip->irq_bus_sync_unlock))
125 desc->irq_data.chip->irq_bus_sync_unlock(&desc->irq_data);
126}
127
128#define _IRQ_DESC_CHECK (1 << 0)
129#define _IRQ_DESC_PERCPU (1 << 1)
130
131#define IRQ_GET_DESC_CHECK_GLOBAL (_IRQ_DESC_CHECK)
132#define IRQ_GET_DESC_CHECK_PERCPU (_IRQ_DESC_CHECK | _IRQ_DESC_PERCPU)
133
134#define for_each_action_of_desc(desc, act) \
135 for (act = desc->act; act; act = act->next)
136
137struct irq_desc *
138__irq_get_desc_lock(unsigned int irq, unsigned long *flags, bool bus,
139 unsigned int check);
140void __irq_put_desc_unlock(struct irq_desc *desc, unsigned long flags, bool bus);
141
142static inline struct irq_desc *
143irq_get_desc_buslock(unsigned int irq, unsigned long *flags, unsigned int check)
144{
145 return __irq_get_desc_lock(irq, flags, true, check);
146}
147
148static inline void
149irq_put_desc_busunlock(struct irq_desc *desc, unsigned long flags)
150{
151 __irq_put_desc_unlock(desc, flags, true);
152}
153
154static inline struct irq_desc *
155irq_get_desc_lock(unsigned int irq, unsigned long *flags, unsigned int check)
156{
157 return __irq_get_desc_lock(irq, flags, false, check);
158}
159
160static inline void
161irq_put_desc_unlock(struct irq_desc *desc, unsigned long flags)
162{
163 __irq_put_desc_unlock(desc, flags, false);
164}
165
166#define __irqd_to_state(d) ACCESS_PRIVATE((d)->common, state_use_accessors)
167
168/*
169 * Manipulation functions for irq_data.state
170 */
171static inline void irqd_set_move_pending(struct irq_data *d)
172{
173 __irqd_to_state(d) |= IRQD_SETAFFINITY_PENDING;
174}
175
176static inline void irqd_clr_move_pending(struct irq_data *d)
177{
178 __irqd_to_state(d) &= ~IRQD_SETAFFINITY_PENDING;
179}
180
181static inline void irqd_clear(struct irq_data *d, unsigned int mask)
182{
183 __irqd_to_state(d) &= ~mask;
184}
185
186static inline void irqd_set(struct irq_data *d, unsigned int mask)
187{
188 __irqd_to_state(d) |= mask;
189}
190
191static inline bool irqd_has_set(struct irq_data *d, unsigned int mask)
192{
193 return __irqd_to_state(d) & mask;
194}
195
196#undef __irqd_to_state
197
198static inline void kstat_incr_irqs_this_cpu(struct irq_desc *desc)
199{
200 __this_cpu_inc(*desc->kstat_irqs);
201 __this_cpu_inc(kstat.irqs_sum);
202}
203
204static inline int irq_desc_get_node(struct irq_desc *desc)
205{
206 return irq_common_data_get_node(&desc->irq_common_data);
207}
208
209static inline int irq_desc_is_chained(struct irq_desc *desc)
210{
211 return (desc->action && desc->action == &chained_action);
212}
213
214#ifdef CONFIG_PM_SLEEP
215bool irq_pm_check_wakeup(struct irq_desc *desc);
216void irq_pm_install_action(struct irq_desc *desc, struct irqaction *action);
217void irq_pm_remove_action(struct irq_desc *desc, struct irqaction *action);
218#else
219static inline bool irq_pm_check_wakeup(struct irq_desc *desc) { return false; }
220static inline void
221irq_pm_install_action(struct irq_desc *desc, struct irqaction *action) { }
222static inline void
223irq_pm_remove_action(struct irq_desc *desc, struct irqaction *action) { }
224#endif