Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * IRQ subsystem internal functions and variables: | |
3 | */ | |
4 | ||
5 | extern int noirqdebug; | |
6 | ||
6a6de9ef TG |
7 | /* Set default functions for irq_chip structures: */ |
8 | extern void irq_chip_set_defaults(struct irq_chip *chip); | |
9 | ||
10 | /* Set default handler: */ | |
11 | extern void compat_irq_chip_set_default_handler(struct irq_desc *desc); | |
12 | ||
0c5d1eb7 DB |
13 | extern int __irq_set_trigger(struct irq_desc *desc, unsigned int irq, |
14 | unsigned long flags); | |
0a0c5168 RW |
15 | extern void __disable_irq(struct irq_desc *desc, unsigned int irq, bool susp); |
16 | extern void __enable_irq(struct irq_desc *desc, unsigned int irq, bool resume); | |
0c5d1eb7 | 17 | |
48a1b10a | 18 | extern struct lock_class_key irq_desc_lock_class; |
85ac16d0 | 19 | extern void init_kstat_irqs(struct irq_desc *desc, int node, int nr); |
0f3c2a89 | 20 | extern void clear_kstat_irqs(struct irq_desc *desc); |
48a1b10a | 21 | extern spinlock_t sparse_irq_lock; |
0fa0ebbf MT |
22 | |
23 | #ifdef CONFIG_SPARSE_IRQ | |
24 | /* irq_desc_ptrs allocated at boot time */ | |
25 | extern struct irq_desc **irq_desc_ptrs; | |
26 | #else | |
27 | /* irq_desc_ptrs is a fixed size array */ | |
48a1b10a | 28 | extern struct irq_desc *irq_desc_ptrs[NR_IRQS]; |
0fa0ebbf | 29 | #endif |
48a1b10a | 30 | |
1da177e4 | 31 | #ifdef CONFIG_PROC_FS |
2c6927a3 | 32 | extern void register_irq_proc(unsigned int irq, struct irq_desc *desc); |
1da177e4 LT |
33 | extern void register_handler_proc(unsigned int irq, struct irqaction *action); |
34 | extern void unregister_handler_proc(unsigned int irq, struct irqaction *action); | |
35 | #else | |
2c6927a3 | 36 | static inline void register_irq_proc(unsigned int irq, struct irq_desc *desc) { } |
1da177e4 LT |
37 | static inline void register_handler_proc(unsigned int irq, |
38 | struct irqaction *action) { } | |
39 | static inline void unregister_handler_proc(unsigned int irq, | |
40 | struct irqaction *action) { } | |
41 | #endif | |
42 | ||
f6d87f4b TG |
43 | extern int irq_select_affinity_usr(unsigned int irq); |
44 | ||
591d2fb0 | 45 | extern void irq_set_thread_affinity(struct irq_desc *desc); |
57b150cc | 46 | |
70aedd24 TG |
47 | /* Inline functions for support of irq chips on slow busses */ |
48 | static inline void chip_bus_lock(unsigned int irq, struct irq_desc *desc) | |
49 | { | |
50 | if (unlikely(desc->chip->bus_lock)) | |
51 | desc->chip->bus_lock(irq); | |
52 | } | |
53 | ||
54 | static inline void chip_bus_sync_unlock(unsigned int irq, struct irq_desc *desc) | |
55 | { | |
56 | if (unlikely(desc->chip->bus_sync_unlock)) | |
57 | desc->chip->bus_sync_unlock(irq); | |
58 | } | |
59 | ||
43f77759 IM |
60 | /* |
61 | * Debugging printout: | |
62 | */ | |
63 | ||
64 | #include <linux/kallsyms.h> | |
65 | ||
66 | #define P(f) if (desc->status & f) printk("%14s set\n", #f) | |
67 | ||
68 | static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc) | |
69 | { | |
70 | printk("irq %d, desc: %p, depth: %d, count: %d, unhandled: %d\n", | |
71 | irq, desc, desc->depth, desc->irq_count, desc->irqs_unhandled); | |
72 | printk("->handle_irq(): %p, ", desc->handle_irq); | |
73 | print_symbol("%s\n", (unsigned long)desc->handle_irq); | |
74 | printk("->chip(): %p, ", desc->chip); | |
75 | print_symbol("%s\n", (unsigned long)desc->chip); | |
76 | printk("->action(): %p\n", desc->action); | |
77 | if (desc->action) { | |
78 | printk("->action->handler(): %p, ", desc->action->handler); | |
79 | print_symbol("%s\n", (unsigned long)desc->action->handler); | |
80 | } | |
81 | ||
82 | P(IRQ_INPROGRESS); | |
83 | P(IRQ_DISABLED); | |
84 | P(IRQ_PENDING); | |
85 | P(IRQ_REPLAY); | |
86 | P(IRQ_AUTODETECT); | |
87 | P(IRQ_WAITING); | |
88 | P(IRQ_LEVEL); | |
89 | P(IRQ_MASKED); | |
90 | #ifdef CONFIG_IRQ_PER_CPU | |
91 | P(IRQ_PER_CPU); | |
92 | #endif | |
93 | P(IRQ_NOPROBE); | |
94 | P(IRQ_NOREQUEST); | |
95 | P(IRQ_NOAUTOEN); | |
96 | } | |
97 | ||
98 | #undef P | |
99 |