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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * IRQ subsystem internal functions and variables: | |
3 | */ | |
e144710b | 4 | #include <linux/irqdesc.h> |
1da177e4 LT |
5 | |
6 | extern int noirqdebug; | |
7 | ||
a77c4635 TG |
8 | #define irq_data_to_desc(data) container_of(data, struct irq_desc, irq_data) |
9 | ||
6a6de9ef TG |
10 | /* Set default functions for irq_chip structures: */ |
11 | extern void irq_chip_set_defaults(struct irq_chip *chip); | |
12 | ||
13 | /* Set default handler: */ | |
14 | extern void compat_irq_chip_set_default_handler(struct irq_desc *desc); | |
15 | ||
0c5d1eb7 DB |
16 | extern int __irq_set_trigger(struct irq_desc *desc, unsigned int irq, |
17 | unsigned long flags); | |
0a0c5168 RW |
18 | extern void __disable_irq(struct irq_desc *desc, unsigned int irq, bool susp); |
19 | extern void __enable_irq(struct irq_desc *desc, unsigned int irq, bool resume); | |
0c5d1eb7 | 20 | |
85ac16d0 | 21 | extern void init_kstat_irqs(struct irq_desc *desc, int node, int nr); |
0fa0ebbf | 22 | |
e144710b TG |
23 | /* Resending of interrupts :*/ |
24 | void check_irq_resend(struct irq_desc *desc, unsigned int irq); | |
25 | ||
1da177e4 | 26 | #ifdef CONFIG_PROC_FS |
2c6927a3 | 27 | extern void register_irq_proc(unsigned int irq, struct irq_desc *desc); |
13bfe99e | 28 | extern void unregister_irq_proc(unsigned int irq, struct irq_desc *desc); |
1da177e4 LT |
29 | extern void register_handler_proc(unsigned int irq, struct irqaction *action); |
30 | extern void unregister_handler_proc(unsigned int irq, struct irqaction *action); | |
31 | #else | |
2c6927a3 | 32 | static inline void register_irq_proc(unsigned int irq, struct irq_desc *desc) { } |
13bfe99e | 33 | static inline void unregister_irq_proc(unsigned int irq, struct irq_desc *desc) { } |
1da177e4 LT |
34 | static inline void register_handler_proc(unsigned int irq, |
35 | struct irqaction *action) { } | |
36 | static inline void unregister_handler_proc(unsigned int irq, | |
37 | struct irqaction *action) { } | |
38 | #endif | |
39 | ||
f6d87f4b TG |
40 | extern int irq_select_affinity_usr(unsigned int irq); |
41 | ||
591d2fb0 | 42 | extern void irq_set_thread_affinity(struct irq_desc *desc); |
57b150cc | 43 | |
bd151412 TG |
44 | #ifndef CONFIG_GENERIC_HARDIRQS_NO_DEPRECATED |
45 | static inline void irq_end(unsigned int irq, struct irq_desc *desc) | |
46 | { | |
47 | if (desc->irq_data.chip && desc->irq_data.chip->end) | |
48 | desc->irq_data.chip->end(irq); | |
49 | } | |
50 | #else | |
51 | static inline void irq_end(unsigned int irq, struct irq_desc *desc) { } | |
52 | #endif | |
53 | ||
70aedd24 | 54 | /* Inline functions for support of irq chips on slow busses */ |
3876ec9e | 55 | static inline void chip_bus_lock(struct irq_desc *desc) |
70aedd24 | 56 | { |
3876ec9e TG |
57 | if (unlikely(desc->irq_data.chip->irq_bus_lock)) |
58 | desc->irq_data.chip->irq_bus_lock(&desc->irq_data); | |
70aedd24 TG |
59 | } |
60 | ||
3876ec9e | 61 | static inline void chip_bus_sync_unlock(struct irq_desc *desc) |
70aedd24 | 62 | { |
3876ec9e TG |
63 | if (unlikely(desc->irq_data.chip->irq_bus_sync_unlock)) |
64 | desc->irq_data.chip->irq_bus_sync_unlock(&desc->irq_data); | |
70aedd24 TG |
65 | } |
66 | ||
43f77759 IM |
67 | /* |
68 | * Debugging printout: | |
69 | */ | |
70 | ||
71 | #include <linux/kallsyms.h> | |
72 | ||
73 | #define P(f) if (desc->status & f) printk("%14s set\n", #f) | |
74 | ||
75 | static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc) | |
76 | { | |
77 | printk("irq %d, desc: %p, depth: %d, count: %d, unhandled: %d\n", | |
78 | irq, desc, desc->depth, desc->irq_count, desc->irqs_unhandled); | |
79 | printk("->handle_irq(): %p, ", desc->handle_irq); | |
80 | print_symbol("%s\n", (unsigned long)desc->handle_irq); | |
6b8ff312 TG |
81 | printk("->irq_data.chip(): %p, ", desc->irq_data.chip); |
82 | print_symbol("%s\n", (unsigned long)desc->irq_data.chip); | |
43f77759 IM |
83 | printk("->action(): %p\n", desc->action); |
84 | if (desc->action) { | |
85 | printk("->action->handler(): %p, ", desc->action->handler); | |
86 | print_symbol("%s\n", (unsigned long)desc->action->handler); | |
87 | } | |
88 | ||
89 | P(IRQ_INPROGRESS); | |
90 | P(IRQ_DISABLED); | |
91 | P(IRQ_PENDING); | |
92 | P(IRQ_REPLAY); | |
93 | P(IRQ_AUTODETECT); | |
94 | P(IRQ_WAITING); | |
95 | P(IRQ_LEVEL); | |
96 | P(IRQ_MASKED); | |
97 | #ifdef CONFIG_IRQ_PER_CPU | |
98 | P(IRQ_PER_CPU); | |
99 | #endif | |
100 | P(IRQ_NOPROBE); | |
101 | P(IRQ_NOREQUEST); | |
102 | P(IRQ_NOAUTOEN); | |
103 | } | |
104 | ||
105 | #undef P | |
106 |