1 /* SPDX-License-Identifier: GPL-2.0 */
5 #include <linux/atomic.h>
6 #include <linux/linkage.h>
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.
16 #if defined(CONFIG_COLDFIRE)
18 #elif defined(CONFIG_VME) || defined(CONFIG_SUN3) || \
19 defined(CONFIG_SUN3X) || defined(CONFIG_VIRT)
21 #elif defined(CONFIG_ATARI)
23 #elif defined(CONFIG_MAC)
25 #elif defined(CONFIG_Q40)
27 #elif defined(CONFIG_AMIGA) || !defined(CONFIG_MMU)
29 #elif defined(CONFIG_APOLLO)
31 #elif defined(CONFIG_HP300)
37 #if defined(CONFIG_M68020) || defined(CONFIG_M68030) || \
38 defined(CONFIG_M68040) || defined(CONFIG_M68060)
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.
50 #define IRQ_SPURIOUS 0
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) */
67 extern unsigned int m68k_irq_startup(struct irq_data *data);
68 extern unsigned int m68k_irq_startup_irq(unsigned int irq);
69 extern void m68k_irq_shutdown(struct irq_data *data);
70 extern void m68k_setup_auto_interrupt(void (*handler)(unsigned int,
72 extern void m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt);
73 extern void m68k_setup_irq_controller(struct irq_chip *,
74 void (*handle)(struct irq_desc *desc),
75 unsigned int irq, unsigned int cnt);
77 extern unsigned int irq_canonicalize(unsigned int irq);
80 #define irq_canonicalize(irq) (irq)
81 #endif /* !(CONFIG_M68020 || CONFIG_M68030 || CONFIG_M68040 || CONFIG_M68060) */
83 asmlinkage void do_IRQ(int irq, struct pt_regs *regs);
84 extern atomic_t irq_err_count;
86 #endif /* _M68K_IRQ_H_ */