1#ifndef _ASM_ARCH_IRQ_H
2#define _ASM_ARCH_IRQ_H
3
4#include <hwregs/intr_vect.h>
5
6
7#define NR_IRQS NBR_INTR_VECT
8#define FIRST_IRQ 0x31
9#define NR_REAL_IRQS (NBR_INTR_VECT - FIRST_IRQ)
10#if NR_REAL_IRQS > 32
11#define MACH_IRQS 64
12#else
13#define MACH_IRQS 32
14#endif
15
16#ifndef __ASSEMBLY__
17
18typedef void (*irqvectptr)(void);
19
20struct etrax_interrupt_vector {
21 irqvectptr v[256];
22};
23
24extern struct etrax_interrupt_vector *etrax_irv;
25
26void crisv32_mask_irq(int irq);
27void crisv32_unmask_irq(int irq);
28
29void set_exception_vector(int n, irqvectptr addr);
30
31
32#define SAVE_ALL \
33 "subq 12,$sp\n\t" \
34 "move $erp,[$sp]\n\t" \
35 "subq 4,$sp\n\t" \
36 "move $srp,[$sp]\n\t" \
37 "subq 4,$sp\n\t" \
38 "move $ccs,[$sp]\n\t" \
39 "subq 4,$sp\n\t" \
40 "move $spc,[$sp]\n\t" \
41 "subq 4,$sp\n\t" \
42 "move $mof,[$sp]\n\t" \
43 "subq 4,$sp\n\t" \
44 "move $srs,[$sp]\n\t" \
45 "subq 4,$sp\n\t" \
46 "move.d $acr,[$sp]\n\t" \
47 "subq 14*4,$sp\n\t" \
48 "movem $r13,[$sp]\n\t" \
49 "subq 4,$sp\n\t" \
50 "move.d $r10,[$sp]\n"
51
52#define STR2(x) #x
53#define STR(x) STR2(x)
54
55#define IRQ_NAME2(nr) nr##_interrupt(void)
56#define IRQ_NAME(nr) IRQ_NAME2(IRQ##nr)
57
58
59
60
61
62
63
64#ifdef CONFIG_ETRAX_KGDB
65#define KGDB_FIXUP \
66 "move $ccs, $r10\n\t" \
67 "or.d (1<<9), $r10\n\t" \
68 "move $r10, $ccs\n\t"
69#else
70#define KGDB_FIXUP ""
71#endif
72
73
74
75
76
77
78
79
80
81#define BUILD_IRQ(nr) \
82void IRQ_NAME(nr); \
83__asm__ ( \
84 ".text\n\t" \
85 "IRQ" #nr "_interrupt:\n\t" \
86 SAVE_ALL \
87 KGDB_FIXUP \
88 "move.d "#nr",$r10\n\t" \
89 "move.d $sp, $r12\n\t" \
90 "jsr crisv32_do_IRQ\n\t" \
91 "moveq 1, $r11\n\t" \
92 "jump ret_from_intr\n\t" \
93 "nop\n\t");
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109#define BUILD_TIMER_IRQ(nr, mask) \
110void IRQ_NAME(nr); \
111__asm__ ( \
112 ".text\n\t" \
113 "IRQ" #nr "_interrupt:\n\t" \
114 SAVE_ALL \
115 KGDB_FIXUP \
116 "move.d "#nr",$r10\n\t" \
117 "move.d $sp,$r12\n\t" \
118 "jsr crisv32_do_IRQ\n\t" \
119 "moveq 0,$r11\n\t" \
120 "jump ret_from_intr\n\t" \
121 "nop\n\t");
122
123#endif
124#endif
125