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1 | #ifdef __KERNEL__ | |
2 | #ifndef _ASM_POWERPC_IRQ_H | |
3 | #define _ASM_POWERPC_IRQ_H | |
4 | ||
5 | /* | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version | |
9 | * 2 of the License, or (at your option) any later version. | |
10 | */ | |
11 | ||
12 | #include <linux/irqdomain.h> | |
13 | #include <linux/threads.h> | |
14 | #include <linux/list.h> | |
15 | #include <linux/radix-tree.h> | |
16 | ||
17 | #include <asm/types.h> | |
18 | #include <linux/atomic.h> | |
19 | ||
20 | ||
21 | extern atomic_t ppc_n_lost_interrupts; | |
22 | ||
23 | /* This number is used when no interrupt has been assigned */ | |
24 | #define NO_IRQ (0) | |
25 | ||
26 | /* Total number of virq in the platform */ | |
27 | #define NR_IRQS CONFIG_NR_IRQS | |
28 | ||
29 | /* Same thing, used by the generic IRQ code */ | |
30 | #define NR_IRQS_LEGACY NUM_ISA_INTERRUPTS | |
31 | ||
32 | extern irq_hw_number_t virq_to_hw(unsigned int virq); | |
33 | ||
34 | static __inline__ int irq_canonicalize(int irq) | |
35 | { | |
36 | return irq; | |
37 | } | |
38 | ||
39 | extern int distribute_irqs; | |
40 | ||
41 | struct irqaction; | |
42 | struct pt_regs; | |
43 | ||
44 | #define __ARCH_HAS_DO_SOFTIRQ | |
45 | ||
46 | #if defined(CONFIG_BOOKE) || defined(CONFIG_40x) | |
47 | /* | |
48 | * Per-cpu stacks for handling critical, debug and machine check | |
49 | * level interrupts. | |
50 | */ | |
51 | extern struct thread_info *critirq_ctx[NR_CPUS]; | |
52 | extern struct thread_info *dbgirq_ctx[NR_CPUS]; | |
53 | extern struct thread_info *mcheckirq_ctx[NR_CPUS]; | |
54 | extern void exc_lvl_ctx_init(void); | |
55 | #else | |
56 | #define exc_lvl_ctx_init() | |
57 | #endif | |
58 | ||
59 | /* | |
60 | * Per-cpu stacks for handling hard and soft interrupts. | |
61 | */ | |
62 | extern struct thread_info *hardirq_ctx[NR_CPUS]; | |
63 | extern struct thread_info *softirq_ctx[NR_CPUS]; | |
64 | ||
65 | extern void irq_ctx_init(void); | |
66 | extern void call_do_softirq(struct thread_info *tp); | |
67 | extern void call_do_irq(struct pt_regs *regs, struct thread_info *tp); | |
68 | extern void do_IRQ(struct pt_regs *regs); | |
69 | extern void __do_irq(struct pt_regs *regs); | |
70 | ||
71 | int irq_choose_cpu(const struct cpumask *mask); | |
72 | ||
73 | #endif /* _ASM_IRQ_H */ | |
74 | #endif /* __KERNEL__ */ |