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- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef _M68K_IRQ_H_
- #define _M68K_IRQ_H_
- /*
- * This should be the same as the max(NUM_X_SOURCES) for all the
- * different m68k hosts compiled into the kernel.
- * Currently the Atari has 72 and the Amiga 24, but if both are
- * supported in the kernel it is better to make room for 72.
- * With EtherNAT add-on card on Atari, the highest interrupt
- * number is 140 so NR_IRQS needs to be 141.
- */
- #if defined(CONFIG_COLDFIRE)
- #define NR_IRQS 256
- #elif defined(CONFIG_VME) || defined(CONFIG_SUN3) || \
- defined(CONFIG_SUN3X) || defined(CONFIG_VIRT)
- #define NR_IRQS 200
- #elif defined(CONFIG_ATARI)
- #define NR_IRQS 141
- #elif defined(CONFIG_MAC)
- #define NR_IRQS 72
- #elif defined(CONFIG_Q40)
- #define NR_IRQS 43
- #elif defined(CONFIG_AMIGA) || !defined(CONFIG_MMU)
- #define NR_IRQS 32
- #elif defined(CONFIG_APOLLO)
- #define NR_IRQS 24
- #elif defined(CONFIG_HP300)
- #define NR_IRQS 8
- #else
- #define NR_IRQS 0
- #endif
- #if defined(CONFIG_M68020) || defined(CONFIG_M68030) || \
- defined(CONFIG_M68040) || defined(CONFIG_M68060)
- /*
- * Interrupt source definitions
- * General interrupt sources are the level 1-7.
- * Adding an interrupt service routine for one of these sources
- * results in the addition of that routine to a chain of routines.
- * Each one is called in succession. Each individual interrupt
- * service routine should determine if the device associated with
- * that routine requires service.
- */
- #define IRQ_SPURIOUS 0
- #define IRQ_AUTO_1 1 /* level 1 interrupt */
- #define IRQ_AUTO_2 2 /* level 2 interrupt */
- #define IRQ_AUTO_3 3 /* level 3 interrupt */
- #define IRQ_AUTO_4 4 /* level 4 interrupt */
- #define IRQ_AUTO_5 5 /* level 5 interrupt */
- #define IRQ_AUTO_6 6 /* level 6 interrupt */
- #define IRQ_AUTO_7 7 /* level 7 interrupt (non-maskable) */
- #define IRQ_USER 8
- struct irq_data;
- struct irq_chip;
- struct irq_desc;
- extern unsigned int m68k_irq_startup(struct irq_data *data);
- extern unsigned int m68k_irq_startup_irq(unsigned int irq);
- extern void m68k_irq_shutdown(struct irq_data *data);
- extern void m68k_setup_auto_interrupt(void (*handler)(unsigned int,
- struct pt_regs *));
- extern void m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt);
- extern void m68k_setup_irq_controller(struct irq_chip *,
- void (*handle)(struct irq_desc *desc),
- unsigned int irq, unsigned int cnt);
- extern unsigned int irq_canonicalize(unsigned int irq);
- #else
- #define irq_canonicalize(irq) (irq)
- #endif /* !(CONFIG_M68020 || CONFIG_M68030 || CONFIG_M68040 || CONFIG_M68060) */
- asmlinkage void do_IRQ(int irq, struct pt_regs *regs);
- extern atomic_t irq_err_count;
- #endif /* _M68K_IRQ_H_ */
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