1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 #ifdef __KERNEL__ 3 #ifndef _ASM_POWERPC_IRQ_H 4 #define _ASM_POWERPC_IRQ_H 5 6 /* 7 */ 8 9 #include <linux/threads.h> 10 #include <linux/list.h> 11 #include <linux/radix-tree.h> 12 13 #include <asm/types.h> 14 #include <linux/atomic.h> 15 16 17 extern atomic_t ppc_n_lost_interrupts; 18 19 /* This number is used when no interrupt has been assigned */ 20 #define NO_IRQ (0) 21 22 /* Total number of virq in the platform */ 23 #define NR_IRQS CONFIG_NR_IRQS 24 25 /* Number of irqs reserved for a legacy isa controller */ 26 #define NR_IRQS_LEGACY 16 27 28 extern irq_hw_number_t virq_to_hw(unsigned int virq); 29 30 static __inline__ int irq_canonicalize(int irq) 31 { 32 return irq; 33 } 34 35 extern int distribute_irqs; 36 37 struct pt_regs; 38 39 #if defined(CONFIG_BOOKE) || defined(CONFIG_40x) 40 /* 41 * Per-cpu stacks for handling critical, debug and machine check 42 * level interrupts. 43 */ 44 extern void *critirq_ctx[NR_CPUS]; 45 extern void *dbgirq_ctx[NR_CPUS]; 46 extern void *mcheckirq_ctx[NR_CPUS]; 47 #endif 48 49 /* 50 * Per-cpu stacks for handling hard and soft interrupts. 51 */ 52 extern void *hardirq_ctx[NR_CPUS]; 53 extern void *softirq_ctx[NR_CPUS]; 54 55 void __do_IRQ(struct pt_regs *regs); 56 extern void __init init_IRQ(void); 57 extern void __do_irq(struct pt_regs *regs); 58 59 int irq_choose_cpu(const struct cpumask *mask); 60 61 #endif /* _ASM_IRQ_H */ 62 #endif /* __KERNEL__ */ 63