Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * IRQ subsystem internal functions and variables: | |
3 | */ | |
e144710b | 4 | #include <linux/irqdesc.h> |
1da177e4 | 5 | |
c1ee6264 TG |
6 | #ifdef CONFIG_SPARSE_IRQ |
7 | # define IRQ_BITMAP_BITS (NR_IRQS + 8196) | |
8 | #else | |
9 | # define IRQ_BITMAP_BITS NR_IRQS | |
10 | #endif | |
11 | ||
1da177e4 LT |
12 | extern int noirqdebug; |
13 | ||
a77c4635 TG |
14 | #define irq_data_to_desc(data) container_of(data, struct irq_desc, irq_data) |
15 | ||
6a6de9ef TG |
16 | /* Set default functions for irq_chip structures: */ |
17 | extern void irq_chip_set_defaults(struct irq_chip *chip); | |
18 | ||
19 | /* Set default handler: */ | |
20 | extern void compat_irq_chip_set_default_handler(struct irq_desc *desc); | |
21 | ||
0c5d1eb7 DB |
22 | extern int __irq_set_trigger(struct irq_desc *desc, unsigned int irq, |
23 | unsigned long flags); | |
0a0c5168 RW |
24 | extern void __disable_irq(struct irq_desc *desc, unsigned int irq, bool susp); |
25 | extern void __enable_irq(struct irq_desc *desc, unsigned int irq, bool resume); | |
0c5d1eb7 | 26 | |
85ac16d0 | 27 | extern void init_kstat_irqs(struct irq_desc *desc, int node, int nr); |
0fa0ebbf | 28 | |
e144710b TG |
29 | /* Resending of interrupts :*/ |
30 | void check_irq_resend(struct irq_desc *desc, unsigned int irq); | |
fe200ae4 | 31 | bool irq_wait_for_poll(struct irq_desc *desc); |
e144710b | 32 | |
1da177e4 | 33 | #ifdef CONFIG_PROC_FS |
2c6927a3 | 34 | extern void register_irq_proc(unsigned int irq, struct irq_desc *desc); |
13bfe99e | 35 | extern void unregister_irq_proc(unsigned int irq, struct irq_desc *desc); |
1da177e4 LT |
36 | extern void register_handler_proc(unsigned int irq, struct irqaction *action); |
37 | extern void unregister_handler_proc(unsigned int irq, struct irqaction *action); | |
38 | #else | |
2c6927a3 | 39 | static inline void register_irq_proc(unsigned int irq, struct irq_desc *desc) { } |
13bfe99e | 40 | static inline void unregister_irq_proc(unsigned int irq, struct irq_desc *desc) { } |
1da177e4 LT |
41 | static inline void register_handler_proc(unsigned int irq, |
42 | struct irqaction *action) { } | |
43 | static inline void unregister_handler_proc(unsigned int irq, | |
44 | struct irqaction *action) { } | |
45 | #endif | |
46 | ||
3b8249e7 | 47 | extern int irq_select_affinity_usr(unsigned int irq, struct cpumask *mask); |
f6d87f4b | 48 | |
591d2fb0 | 49 | extern void irq_set_thread_affinity(struct irq_desc *desc); |
57b150cc | 50 | |
70aedd24 | 51 | /* Inline functions for support of irq chips on slow busses */ |
3876ec9e | 52 | static inline void chip_bus_lock(struct irq_desc *desc) |
70aedd24 | 53 | { |
3876ec9e TG |
54 | if (unlikely(desc->irq_data.chip->irq_bus_lock)) |
55 | desc->irq_data.chip->irq_bus_lock(&desc->irq_data); | |
70aedd24 TG |
56 | } |
57 | ||
3876ec9e | 58 | static inline void chip_bus_sync_unlock(struct irq_desc *desc) |
70aedd24 | 59 | { |
3876ec9e TG |
60 | if (unlikely(desc->irq_data.chip->irq_bus_sync_unlock)) |
61 | desc->irq_data.chip->irq_bus_sync_unlock(&desc->irq_data); | |
70aedd24 TG |
62 | } |
63 | ||
43f77759 IM |
64 | /* |
65 | * Debugging printout: | |
66 | */ | |
67 | ||
68 | #include <linux/kallsyms.h> | |
69 | ||
70 | #define P(f) if (desc->status & f) printk("%14s set\n", #f) | |
71 | ||
72 | static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc) | |
73 | { | |
74 | printk("irq %d, desc: %p, depth: %d, count: %d, unhandled: %d\n", | |
75 | irq, desc, desc->depth, desc->irq_count, desc->irqs_unhandled); | |
76 | printk("->handle_irq(): %p, ", desc->handle_irq); | |
77 | print_symbol("%s\n", (unsigned long)desc->handle_irq); | |
6b8ff312 TG |
78 | printk("->irq_data.chip(): %p, ", desc->irq_data.chip); |
79 | print_symbol("%s\n", (unsigned long)desc->irq_data.chip); | |
43f77759 IM |
80 | printk("->action(): %p\n", desc->action); |
81 | if (desc->action) { | |
82 | printk("->action->handler(): %p, ", desc->action->handler); | |
83 | print_symbol("%s\n", (unsigned long)desc->action->handler); | |
84 | } | |
85 | ||
86 | P(IRQ_INPROGRESS); | |
87 | P(IRQ_DISABLED); | |
88 | P(IRQ_PENDING); | |
89 | P(IRQ_REPLAY); | |
90 | P(IRQ_AUTODETECT); | |
91 | P(IRQ_WAITING); | |
92 | P(IRQ_LEVEL); | |
93 | P(IRQ_MASKED); | |
94 | #ifdef CONFIG_IRQ_PER_CPU | |
95 | P(IRQ_PER_CPU); | |
96 | #endif | |
97 | P(IRQ_NOPROBE); | |
98 | P(IRQ_NOREQUEST); | |
99 | P(IRQ_NOAUTOEN); | |
100 | } | |
101 | ||
102 | #undef P | |
103 |