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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _M68K_IRQ_H_
#define _M68K_IRQ_H_
#include <linux/atomic.h>
#include <linux/linkage.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;
struct pt_regs;
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_ */