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