diff options
Diffstat (limited to 'include/asm-ppc64/irq.h')
-rw-r--r-- | include/asm-ppc64/irq.h | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/include/asm-ppc64/irq.h b/include/asm-ppc64/irq.h deleted file mode 100644 index 99782afb4cde..000000000000 --- a/include/asm-ppc64/irq.h +++ /dev/null | |||
@@ -1,120 +0,0 @@ | |||
1 | #ifdef __KERNEL__ | ||
2 | #ifndef _ASM_IRQ_H | ||
3 | #define _ASM_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/config.h> | ||
13 | #include <linux/threads.h> | ||
14 | |||
15 | /* | ||
16 | * Maximum number of interrupt sources that we can handle. | ||
17 | */ | ||
18 | #define NR_IRQS 512 | ||
19 | |||
20 | /* this number is used when no interrupt has been assigned */ | ||
21 | #define NO_IRQ (-1) | ||
22 | |||
23 | /* | ||
24 | * These constants are used for passing information about interrupt | ||
25 | * signal polarity and level/edge sensing to the low-level PIC chip | ||
26 | * drivers. | ||
27 | */ | ||
28 | #define IRQ_SENSE_MASK 0x1 | ||
29 | #define IRQ_SENSE_LEVEL 0x1 /* interrupt on active level */ | ||
30 | #define IRQ_SENSE_EDGE 0x0 /* interrupt triggered by edge */ | ||
31 | |||
32 | #define IRQ_POLARITY_MASK 0x2 | ||
33 | #define IRQ_POLARITY_POSITIVE 0x2 /* high level or low->high edge */ | ||
34 | #define IRQ_POLARITY_NEGATIVE 0x0 /* low level or high->low edge */ | ||
35 | |||
36 | /* | ||
37 | * IRQ line status macro IRQ_PER_CPU is used | ||
38 | */ | ||
39 | #define ARCH_HAS_IRQ_PER_CPU | ||
40 | |||
41 | #define get_irq_desc(irq) (&irq_desc[(irq)]) | ||
42 | |||
43 | /* Define a way to iterate across irqs. */ | ||
44 | #define for_each_irq(i) \ | ||
45 | for ((i) = 0; (i) < NR_IRQS; ++(i)) | ||
46 | |||
47 | /* Interrupt numbers are virtual in case they are sparsely | ||
48 | * distributed by the hardware. | ||
49 | */ | ||
50 | extern unsigned int virt_irq_to_real_map[NR_IRQS]; | ||
51 | |||
52 | /* Create a mapping for a real_irq if it doesn't already exist. | ||
53 | * Return the virtual irq as a convenience. | ||
54 | */ | ||
55 | int virt_irq_create_mapping(unsigned int real_irq); | ||
56 | void virt_irq_init(void); | ||
57 | |||
58 | static inline unsigned int virt_irq_to_real(unsigned int virt_irq) | ||
59 | { | ||
60 | return virt_irq_to_real_map[virt_irq]; | ||
61 | } | ||
62 | |||
63 | extern unsigned int real_irq_to_virt_slowpath(unsigned int real_irq); | ||
64 | |||
65 | /* | ||
66 | * Because many systems have two overlapping names spaces for | ||
67 | * interrupts (ISA and XICS for example), and the ISA interrupts | ||
68 | * have historically not been easy to renumber, we allow ISA | ||
69 | * interrupts to take values 0 - 15, and shift up the remaining | ||
70 | * interrupts by 0x10. | ||
71 | */ | ||
72 | #define NUM_ISA_INTERRUPTS 0x10 | ||
73 | extern int __irq_offset_value; | ||
74 | |||
75 | static inline int irq_offset_up(int irq) | ||
76 | { | ||
77 | return(irq + __irq_offset_value); | ||
78 | } | ||
79 | |||
80 | static inline int irq_offset_down(int irq) | ||
81 | { | ||
82 | return(irq - __irq_offset_value); | ||
83 | } | ||
84 | |||
85 | static inline int irq_offset_value(void) | ||
86 | { | ||
87 | return __irq_offset_value; | ||
88 | } | ||
89 | |||
90 | static __inline__ int irq_canonicalize(int irq) | ||
91 | { | ||
92 | return irq; | ||
93 | } | ||
94 | |||
95 | extern int distribute_irqs; | ||
96 | |||
97 | struct irqaction; | ||
98 | struct pt_regs; | ||
99 | |||
100 | #ifdef CONFIG_IRQSTACKS | ||
101 | /* | ||
102 | * Per-cpu stacks for handling hard and soft interrupts. | ||
103 | */ | ||
104 | extern struct thread_info *hardirq_ctx[NR_CPUS]; | ||
105 | extern struct thread_info *softirq_ctx[NR_CPUS]; | ||
106 | |||
107 | extern void irq_ctx_init(void); | ||
108 | extern void call_do_softirq(struct thread_info *tp); | ||
109 | extern int call_handle_IRQ_event(int irq, struct pt_regs *regs, | ||
110 | struct irqaction *action, struct thread_info *tp); | ||
111 | |||
112 | #define __ARCH_HAS_DO_SOFTIRQ | ||
113 | |||
114 | #else | ||
115 | #define irq_ctx_init() | ||
116 | |||
117 | #endif /* CONFIG_IRQSTACKS */ | ||
118 | |||
119 | #endif /* _ASM_IRQ_H */ | ||
120 | #endif /* __KERNEL__ */ | ||