diff options
Diffstat (limited to 'arch/m68k/include/asm/irq.h')
| -rw-r--r-- | arch/m68k/include/asm/irq.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/irq.h b/arch/m68k/include/asm/irq.h new file mode 100644 index 000000000..91dd49379 --- /dev/null +++ b/arch/m68k/include/asm/irq.h @@ -0,0 +1,80 @@ +/* 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) +#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_ */ |