18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 28c2ecf20Sopenharmony_ci#ifndef _M68K_IRQ_H_ 38c2ecf20Sopenharmony_ci#define _M68K_IRQ_H_ 48c2ecf20Sopenharmony_ci 58c2ecf20Sopenharmony_ci/* 68c2ecf20Sopenharmony_ci * This should be the same as the max(NUM_X_SOURCES) for all the 78c2ecf20Sopenharmony_ci * different m68k hosts compiled into the kernel. 88c2ecf20Sopenharmony_ci * Currently the Atari has 72 and the Amiga 24, but if both are 98c2ecf20Sopenharmony_ci * supported in the kernel it is better to make room for 72. 108c2ecf20Sopenharmony_ci * With EtherNAT add-on card on Atari, the highest interrupt 118c2ecf20Sopenharmony_ci * number is 140 so NR_IRQS needs to be 141. 128c2ecf20Sopenharmony_ci */ 138c2ecf20Sopenharmony_ci#if defined(CONFIG_COLDFIRE) 148c2ecf20Sopenharmony_ci#define NR_IRQS 256 158c2ecf20Sopenharmony_ci#elif defined(CONFIG_VME) || defined(CONFIG_SUN3) || defined(CONFIG_SUN3X) 168c2ecf20Sopenharmony_ci#define NR_IRQS 200 178c2ecf20Sopenharmony_ci#elif defined(CONFIG_ATARI) 188c2ecf20Sopenharmony_ci#define NR_IRQS 141 198c2ecf20Sopenharmony_ci#elif defined(CONFIG_MAC) 208c2ecf20Sopenharmony_ci#define NR_IRQS 72 218c2ecf20Sopenharmony_ci#elif defined(CONFIG_Q40) 228c2ecf20Sopenharmony_ci#define NR_IRQS 43 238c2ecf20Sopenharmony_ci#elif defined(CONFIG_AMIGA) || !defined(CONFIG_MMU) 248c2ecf20Sopenharmony_ci#define NR_IRQS 32 258c2ecf20Sopenharmony_ci#elif defined(CONFIG_APOLLO) 268c2ecf20Sopenharmony_ci#define NR_IRQS 24 278c2ecf20Sopenharmony_ci#elif defined(CONFIG_HP300) 288c2ecf20Sopenharmony_ci#define NR_IRQS 8 298c2ecf20Sopenharmony_ci#else 308c2ecf20Sopenharmony_ci#define NR_IRQS 0 318c2ecf20Sopenharmony_ci#endif 328c2ecf20Sopenharmony_ci 338c2ecf20Sopenharmony_ci#if defined(CONFIG_M68020) || defined(CONFIG_M68030) || \ 348c2ecf20Sopenharmony_ci defined(CONFIG_M68040) || defined(CONFIG_M68060) 358c2ecf20Sopenharmony_ci 368c2ecf20Sopenharmony_ci/* 378c2ecf20Sopenharmony_ci * Interrupt source definitions 388c2ecf20Sopenharmony_ci * General interrupt sources are the level 1-7. 398c2ecf20Sopenharmony_ci * Adding an interrupt service routine for one of these sources 408c2ecf20Sopenharmony_ci * results in the addition of that routine to a chain of routines. 418c2ecf20Sopenharmony_ci * Each one is called in succession. Each individual interrupt 428c2ecf20Sopenharmony_ci * service routine should determine if the device associated with 438c2ecf20Sopenharmony_ci * that routine requires service. 448c2ecf20Sopenharmony_ci */ 458c2ecf20Sopenharmony_ci 468c2ecf20Sopenharmony_ci#define IRQ_SPURIOUS 0 478c2ecf20Sopenharmony_ci 488c2ecf20Sopenharmony_ci#define IRQ_AUTO_1 1 /* level 1 interrupt */ 498c2ecf20Sopenharmony_ci#define IRQ_AUTO_2 2 /* level 2 interrupt */ 508c2ecf20Sopenharmony_ci#define IRQ_AUTO_3 3 /* level 3 interrupt */ 518c2ecf20Sopenharmony_ci#define IRQ_AUTO_4 4 /* level 4 interrupt */ 528c2ecf20Sopenharmony_ci#define IRQ_AUTO_5 5 /* level 5 interrupt */ 538c2ecf20Sopenharmony_ci#define IRQ_AUTO_6 6 /* level 6 interrupt */ 548c2ecf20Sopenharmony_ci#define IRQ_AUTO_7 7 /* level 7 interrupt (non-maskable) */ 558c2ecf20Sopenharmony_ci 568c2ecf20Sopenharmony_ci#define IRQ_USER 8 578c2ecf20Sopenharmony_ci 588c2ecf20Sopenharmony_cistruct irq_data; 598c2ecf20Sopenharmony_cistruct irq_chip; 608c2ecf20Sopenharmony_cistruct irq_desc; 618c2ecf20Sopenharmony_ciextern unsigned int m68k_irq_startup(struct irq_data *data); 628c2ecf20Sopenharmony_ciextern unsigned int m68k_irq_startup_irq(unsigned int irq); 638c2ecf20Sopenharmony_ciextern void m68k_irq_shutdown(struct irq_data *data); 648c2ecf20Sopenharmony_ciextern void m68k_setup_auto_interrupt(void (*handler)(unsigned int, 658c2ecf20Sopenharmony_ci struct pt_regs *)); 668c2ecf20Sopenharmony_ciextern void m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt); 678c2ecf20Sopenharmony_ciextern void m68k_setup_irq_controller(struct irq_chip *, 688c2ecf20Sopenharmony_ci void (*handle)(struct irq_desc *desc), 698c2ecf20Sopenharmony_ci unsigned int irq, unsigned int cnt); 708c2ecf20Sopenharmony_ci 718c2ecf20Sopenharmony_ciextern unsigned int irq_canonicalize(unsigned int irq); 728c2ecf20Sopenharmony_ci 738c2ecf20Sopenharmony_ci#else 748c2ecf20Sopenharmony_ci#define irq_canonicalize(irq) (irq) 758c2ecf20Sopenharmony_ci#endif /* !(CONFIG_M68020 || CONFIG_M68030 || CONFIG_M68040 || CONFIG_M68060) */ 768c2ecf20Sopenharmony_ci 778c2ecf20Sopenharmony_ciasmlinkage void do_IRQ(int irq, struct pt_regs *regs); 788c2ecf20Sopenharmony_ciextern atomic_t irq_err_count; 798c2ecf20Sopenharmony_ci 808c2ecf20Sopenharmony_ci#endif /* _M68K_IRQ_H_ */ 81