1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef __ASM_SH_IRQ_H 3#define __ASM_SH_IRQ_H 4 5#include <linux/cpumask.h> 6#include <asm/machvec.h> 7 8/* 9 * Only legacy non-sparseirq platforms have to set a reasonably sane 10 * value here. sparseirq platforms allocate their irq_descs on the fly, 11 * so will expand automatically based on the number of registered IRQs. 12 */ 13#ifdef CONFIG_SPARSE_IRQ 14# define NR_IRQS 8 15#else 16# define NR_IRQS 512 17#endif 18 19/* 20 * This is a special IRQ number for indicating that no IRQ has been 21 * triggered and to simply ignore the IRQ dispatch. This is a special 22 * case that can happen with IRQ auto-distribution when multiple CPUs 23 * are woken up and signalled in parallel. 24 */ 25#define NO_IRQ_IGNORE ((unsigned int)-1) 26 27/* 28 * Simple Mask Register Support 29 */ 30extern void make_maskreg_irq(unsigned int irq); 31extern unsigned short *irq_mask_register; 32 33/* 34 * PINT IRQs 35 */ 36void init_IRQ_pint(void); 37void make_imask_irq(unsigned int irq); 38 39static inline int generic_irq_demux(int irq) 40{ 41 return irq; 42} 43 44#define irq_demux(irq) sh_mv.mv_irq_demux(irq) 45 46void init_IRQ(void); 47void migrate_irqs(void); 48 49asmlinkage int do_IRQ(unsigned int irq, struct pt_regs *regs); 50 51#ifdef CONFIG_IRQSTACKS 52extern void irq_ctx_init(int cpu); 53extern void irq_ctx_exit(int cpu); 54# define __ARCH_HAS_DO_SOFTIRQ 55#else 56# define irq_ctx_init(cpu) do { } while (0) 57# define irq_ctx_exit(cpu) do { } while (0) 58#endif 59 60#ifdef CONFIG_INTC_BALANCING 61extern unsigned int irq_lookup(unsigned int irq); 62extern void irq_finish(unsigned int irq); 63#else 64#define irq_lookup(irq) (irq) 65#define irq_finish(irq) do { } while (0) 66#endif 67 68#include <asm-generic/irq.h> 69 70#endif /* __ASM_SH_IRQ_H */ 71