Loading...
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _M68K_IRQ_H_
3#define _M68K_IRQ_H_
4
5/*
6 * This should be the same as the max(NUM_X_SOURCES) for all the
7 * different m68k hosts compiled into the kernel.
8 * Currently the Atari has 72 and the Amiga 24, but if both are
9 * supported in the kernel it is better to make room for 72.
10 * With EtherNAT add-on card on Atari, the highest interrupt
11 * number is 140 so NR_IRQS needs to be 141.
12 */
13#if defined(CONFIG_COLDFIRE)
14#define NR_IRQS 256
15#elif defined(CONFIG_VME) || defined(CONFIG_SUN3) || defined(CONFIG_SUN3X)
16#define NR_IRQS 200
17#elif defined(CONFIG_ATARI)
18#define NR_IRQS 141
19#elif defined(CONFIG_MAC)
20#define NR_IRQS 72
21#elif defined(CONFIG_Q40)
22#define NR_IRQS 43
23#elif defined(CONFIG_AMIGA) || !defined(CONFIG_MMU)
24#define NR_IRQS 32
25#elif defined(CONFIG_APOLLO)
26#define NR_IRQS 24
27#elif defined(CONFIG_HP300)
28#define NR_IRQS 8
29#else
30#define NR_IRQS 0
31#endif
32
33#if defined(CONFIG_M68020) || defined(CONFIG_M68030) || \
34 defined(CONFIG_M68040) || defined(CONFIG_M68060)
35
36/*
37 * Interrupt source definitions
38 * General interrupt sources are the level 1-7.
39 * Adding an interrupt service routine for one of these sources
40 * results in the addition of that routine to a chain of routines.
41 * Each one is called in succession. Each individual interrupt
42 * service routine should determine if the device associated with
43 * that routine requires service.
44 */
45
46#define IRQ_SPURIOUS 0
47
48#define IRQ_AUTO_1 1 /* level 1 interrupt */
49#define IRQ_AUTO_2 2 /* level 2 interrupt */
50#define IRQ_AUTO_3 3 /* level 3 interrupt */
51#define IRQ_AUTO_4 4 /* level 4 interrupt */
52#define IRQ_AUTO_5 5 /* level 5 interrupt */
53#define IRQ_AUTO_6 6 /* level 6 interrupt */
54#define IRQ_AUTO_7 7 /* level 7 interrupt (non-maskable) */
55
56#define IRQ_USER 8
57
58struct irq_data;
59struct irq_chip;
60struct irq_desc;
61extern unsigned int m68k_irq_startup(struct irq_data *data);
62extern unsigned int m68k_irq_startup_irq(unsigned int irq);
63extern void m68k_irq_shutdown(struct irq_data *data);
64extern void m68k_setup_auto_interrupt(void (*handler)(unsigned int,
65 struct pt_regs *));
66extern void m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt);
67extern void m68k_setup_irq_controller(struct irq_chip *,
68 void (*handle)(struct irq_desc *desc),
69 unsigned int irq, unsigned int cnt);
70
71extern unsigned int irq_canonicalize(unsigned int irq);
72
73#else
74#define irq_canonicalize(irq) (irq)
75#endif /* !(CONFIG_M68020 || CONFIG_M68030 || CONFIG_M68040 || CONFIG_M68060) */
76
77asmlinkage void do_IRQ(int irq, struct pt_regs *regs);
78extern atomic_t irq_err_count;
79
80#endif /* _M68K_IRQ_H_ */
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _M68K_IRQ_H_
3#define _M68K_IRQ_H_
4
5#include <linux/atomic.h>
6#include <linux/linkage.h>
7
8/*
9 * This should be the same as the max(NUM_X_SOURCES) for all the
10 * different m68k hosts compiled into the kernel.
11 * Currently the Atari has 72 and the Amiga 24, but if both are
12 * supported in the kernel it is better to make room for 72.
13 * With EtherNAT add-on card on Atari, the highest interrupt
14 * number is 140 so NR_IRQS needs to be 141.
15 */
16#if defined(CONFIG_COLDFIRE)
17#define NR_IRQS 256
18#elif defined(CONFIG_VME) || defined(CONFIG_SUN3) || \
19 defined(CONFIG_SUN3X) || defined(CONFIG_VIRT)
20#define NR_IRQS 200
21#elif defined(CONFIG_ATARI)
22#define NR_IRQS 141
23#elif defined(CONFIG_MAC)
24#define NR_IRQS 72
25#elif defined(CONFIG_Q40)
26#define NR_IRQS 43
27#elif defined(CONFIG_AMIGA) || !defined(CONFIG_MMU)
28#define NR_IRQS 32
29#elif defined(CONFIG_APOLLO)
30#define NR_IRQS 24
31#elif defined(CONFIG_HP300)
32#define NR_IRQS 8
33#else
34#define NR_IRQS 0
35#endif
36
37#if defined(CONFIG_M68020) || defined(CONFIG_M68030) || \
38 defined(CONFIG_M68040) || defined(CONFIG_M68060)
39
40/*
41 * Interrupt source definitions
42 * General interrupt sources are the level 1-7.
43 * Adding an interrupt service routine for one of these sources
44 * results in the addition of that routine to a chain of routines.
45 * Each one is called in succession. Each individual interrupt
46 * service routine should determine if the device associated with
47 * that routine requires service.
48 */
49
50#define IRQ_SPURIOUS 0
51
52#define IRQ_AUTO_1 1 /* level 1 interrupt */
53#define IRQ_AUTO_2 2 /* level 2 interrupt */
54#define IRQ_AUTO_3 3 /* level 3 interrupt */
55#define IRQ_AUTO_4 4 /* level 4 interrupt */
56#define IRQ_AUTO_5 5 /* level 5 interrupt */
57#define IRQ_AUTO_6 6 /* level 6 interrupt */
58#define IRQ_AUTO_7 7 /* level 7 interrupt (non-maskable) */
59
60#define IRQ_USER 8
61
62struct irq_data;
63struct irq_chip;
64struct irq_desc;
65struct pt_regs;
66
67extern unsigned int m68k_irq_startup(struct irq_data *data);
68extern unsigned int m68k_irq_startup_irq(unsigned int irq);
69extern void m68k_irq_shutdown(struct irq_data *data);
70extern void m68k_setup_auto_interrupt(void (*handler)(unsigned int,
71 struct pt_regs *));
72extern void m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt);
73extern void m68k_setup_irq_controller(struct irq_chip *,
74 void (*handle)(struct irq_desc *desc),
75 unsigned int irq, unsigned int cnt);
76
77extern unsigned int irq_canonicalize(unsigned int irq);
78
79#else
80#define irq_canonicalize(irq) (irq)
81#endif /* !(CONFIG_M68020 || CONFIG_M68030 || CONFIG_M68040 || CONFIG_M68060) */
82
83asmlinkage void do_IRQ(int irq, struct pt_regs *regs);
84extern atomic_t irq_err_count;
85
86#endif /* _M68K_IRQ_H_ */