Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * IRQ subsystem internal functions and variables: |
| 3 | */ |
| 4 | |
| 5 | extern int noirqdebug; |
| 6 | |
Thomas Gleixner | 6a6de9e | 2006-06-29 02:24:51 -0700 | [diff] [blame] | 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 | |
David Brownell | 0c5d1eb | 2008-10-01 14:46:18 -0700 | [diff] [blame] | 13 | extern int __irq_set_trigger(struct irq_desc *desc, unsigned int irq, |
| 14 | unsigned long flags); |
| 15 | |
Yinghai Lu | 48a1b10 | 2008-12-11 00:15:01 -0800 | [diff] [blame] | 16 | extern struct lock_class_key irq_desc_lock_class; |
| 17 | extern void init_kstat_irqs(struct irq_desc *desc, int cpu, int nr); |
Yinghai Lu | 0f3c2a8 | 2009-02-08 16:18:03 -0800 | [diff] [blame] | 18 | extern void clear_kstat_irqs(struct irq_desc *desc); |
Yinghai Lu | 48a1b10 | 2008-12-11 00:15:01 -0800 | [diff] [blame] | 19 | extern spinlock_t sparse_irq_lock; |
Mike Travis | 0fa0ebb | 2009-01-10 22:24:06 -0800 | [diff] [blame] | 20 | |
| 21 | #ifdef CONFIG_SPARSE_IRQ |
| 22 | /* irq_desc_ptrs allocated at boot time */ |
| 23 | extern struct irq_desc **irq_desc_ptrs; |
| 24 | #else |
| 25 | /* irq_desc_ptrs is a fixed size array */ |
Yinghai Lu | 48a1b10 | 2008-12-11 00:15:01 -0800 | [diff] [blame] | 26 | extern struct irq_desc *irq_desc_ptrs[NR_IRQS]; |
Mike Travis | 0fa0ebb | 2009-01-10 22:24:06 -0800 | [diff] [blame] | 27 | #endif |
Yinghai Lu | 48a1b10 | 2008-12-11 00:15:01 -0800 | [diff] [blame] | 28 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | #ifdef CONFIG_PROC_FS |
Yinghai Lu | 2c6927a | 2008-08-19 20:50:11 -0700 | [diff] [blame] | 30 | extern void register_irq_proc(unsigned int irq, struct irq_desc *desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | extern void register_handler_proc(unsigned int irq, struct irqaction *action); |
| 32 | extern void unregister_handler_proc(unsigned int irq, struct irqaction *action); |
| 33 | #else |
Yinghai Lu | 2c6927a | 2008-08-19 20:50:11 -0700 | [diff] [blame] | 34 | static inline void register_irq_proc(unsigned int irq, struct irq_desc *desc) { } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | static inline void register_handler_proc(unsigned int irq, |
| 36 | struct irqaction *action) { } |
| 37 | static inline void unregister_handler_proc(unsigned int irq, |
| 38 | struct irqaction *action) { } |
| 39 | #endif |
| 40 | |
Thomas Gleixner | f6d87f4 | 2008-11-07 13:18:30 +0100 | [diff] [blame] | 41 | extern int irq_select_affinity_usr(unsigned int irq); |
| 42 | |
Ingo Molnar | 43f7775 | 2006-06-29 02:24:58 -0700 | [diff] [blame] | 43 | /* |
| 44 | * Debugging printout: |
| 45 | */ |
| 46 | |
| 47 | #include <linux/kallsyms.h> |
| 48 | |
| 49 | #define P(f) if (desc->status & f) printk("%14s set\n", #f) |
| 50 | |
| 51 | static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc) |
| 52 | { |
| 53 | printk("irq %d, desc: %p, depth: %d, count: %d, unhandled: %d\n", |
| 54 | irq, desc, desc->depth, desc->irq_count, desc->irqs_unhandled); |
| 55 | printk("->handle_irq(): %p, ", desc->handle_irq); |
| 56 | print_symbol("%s\n", (unsigned long)desc->handle_irq); |
| 57 | printk("->chip(): %p, ", desc->chip); |
| 58 | print_symbol("%s\n", (unsigned long)desc->chip); |
| 59 | printk("->action(): %p\n", desc->action); |
| 60 | if (desc->action) { |
| 61 | printk("->action->handler(): %p, ", desc->action->handler); |
| 62 | print_symbol("%s\n", (unsigned long)desc->action->handler); |
| 63 | } |
| 64 | |
| 65 | P(IRQ_INPROGRESS); |
| 66 | P(IRQ_DISABLED); |
| 67 | P(IRQ_PENDING); |
| 68 | P(IRQ_REPLAY); |
| 69 | P(IRQ_AUTODETECT); |
| 70 | P(IRQ_WAITING); |
| 71 | P(IRQ_LEVEL); |
| 72 | P(IRQ_MASKED); |
| 73 | #ifdef CONFIG_IRQ_PER_CPU |
| 74 | P(IRQ_PER_CPU); |
| 75 | #endif |
| 76 | P(IRQ_NOPROBE); |
| 77 | P(IRQ_NOREQUEST); |
| 78 | P(IRQ_NOAUTOEN); |
| 79 | } |
| 80 | |
| 81 | #undef P |
| 82 | |