1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _M68K_IRQ_H_ 3 #define _M68K_IRQ_H_ 4 5 /* 6 * This should be the same as the max(NUM_X_SOURCES) for all the 7 * different m68k hosts compiled into the kernel. 8 * Currently the Atari has 72 and the Amiga 24, but if both are 9 * supported in the kernel it is better to make room for 72. 10 * With EtherNAT add-on card on Atari, the highest interrupt 11 * number is 140 so NR_IRQS needs to be 141. 12 */ 13 #if defined(CONFIG_COLDFIRE) 14 #define NR_IRQS 256 15 #elif defined(CONFIG_VME) || defined(CONFIG_SUN3) || \ 16 defined(CONFIG_SUN3X) || defined(CONFIG_VIRT) 17 #define NR_IRQS 200 18 #elif defined(CONFIG_ATARI) 19 #define NR_IRQS 141 20 #elif defined(CONFIG_MAC) 21 #define NR_IRQS 72 22 #elif defined(CONFIG_Q40) 23 #define NR_IRQS 43 24 #elif defined(CONFIG_AMIGA) || !defined(CONFIG_MMU) 25 #define NR_IRQS 32 26 #elif defined(CONFIG_APOLLO) 27 #define NR_IRQS 24 28 #elif defined(CONFIG_HP300) 29 #define NR_IRQS 8 30 #else 31 #define NR_IRQS 0 32 #endif 33 34 #if defined(CONFIG_M68020) || defined(CONFIG_M68030) || \ 35 defined(CONFIG_M68040) || defined(CONFIG_M68060) 36 37 /* 38 * Interrupt source definitions 39 * General interrupt sources are the level 1-7. 40 * Adding an interrupt service routine for one of these sources 41 * results in the addition of that routine to a chain of routines. 42 * Each one is called in succession. Each individual interrupt 43 * service routine should determine if the device associated with 44 * that routine requires service. 45 */ 46 47 #define IRQ_SPURIOUS 0 48 49 #define IRQ_AUTO_1 1 /* level 1 interrupt */ 50 #define IRQ_AUTO_2 2 /* level 2 interrupt */ 51 #define IRQ_AUTO_3 3 /* level 3 interrupt */ 52 #define IRQ_AUTO_4 4 /* level 4 interrupt */ 53 #define IRQ_AUTO_5 5 /* level 5 interrupt */ 54 #define IRQ_AUTO_6 6 /* level 6 interrupt */ 55 #define IRQ_AUTO_7 7 /* level 7 interrupt (non-maskable) */ 56 57 #define IRQ_USER 8 58 59 struct irq_data; 60 struct irq_chip; 61 struct irq_desc; 62 extern unsigned int m68k_irq_startup(struct irq_data *data); 63 extern unsigned int m68k_irq_startup_irq(unsigned int irq); 64 extern void m68k_irq_shutdown(struct irq_data *data); 65 extern void m68k_setup_auto_interrupt(void (*handler)(unsigned int, 66 struct pt_regs *)); 67 extern void m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt); 68 extern void m68k_setup_irq_controller(struct irq_chip *, 69 void (*handle)(struct irq_desc *desc), 70 unsigned int irq, unsigned int cnt); 71 72 extern unsigned int irq_canonicalize(unsigned int irq); 73 74 #else 75 #define irq_canonicalize(irq) (irq) 76 #endif /* !(CONFIG_M68020 || CONFIG_M68030 || CONFIG_M68040 || CONFIG_M68060) */ 77 78 asmlinkage void do_IRQ(int irq, struct pt_regs *regs); 79 extern atomic_t irq_err_count; 80 81 #endif /* _M68K_IRQ_H_ */ 82