1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */ 2*4882a593Smuzhiyun #ifdef __KERNEL__ 3*4882a593Smuzhiyun #ifndef _ASM_POWERPC_IRQ_H 4*4882a593Smuzhiyun #define _ASM_POWERPC_IRQ_H 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun /* 7*4882a593Smuzhiyun */ 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #include <linux/irqdomain.h> 10*4882a593Smuzhiyun #include <linux/threads.h> 11*4882a593Smuzhiyun #include <linux/list.h> 12*4882a593Smuzhiyun #include <linux/radix-tree.h> 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun #include <asm/types.h> 15*4882a593Smuzhiyun #include <linux/atomic.h> 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun extern atomic_t ppc_n_lost_interrupts; 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun /* This number is used when no interrupt has been assigned */ 21*4882a593Smuzhiyun #define NO_IRQ (0) 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun /* Total number of virq in the platform */ 24*4882a593Smuzhiyun #define NR_IRQS CONFIG_NR_IRQS 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun /* Same thing, used by the generic IRQ code */ 27*4882a593Smuzhiyun #define NR_IRQS_LEGACY NUM_ISA_INTERRUPTS 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun extern irq_hw_number_t virq_to_hw(unsigned int virq); 30*4882a593Smuzhiyun irq_canonicalize(int irq)31*4882a593Smuzhiyunstatic __inline__ int irq_canonicalize(int irq) 32*4882a593Smuzhiyun { 33*4882a593Smuzhiyun return irq; 34*4882a593Smuzhiyun } 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun extern int distribute_irqs; 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun struct pt_regs; 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun #define __ARCH_HAS_DO_SOFTIRQ 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun #if defined(CONFIG_BOOKE) || defined(CONFIG_40x) 43*4882a593Smuzhiyun /* 44*4882a593Smuzhiyun * Per-cpu stacks for handling critical, debug and machine check 45*4882a593Smuzhiyun * level interrupts. 46*4882a593Smuzhiyun */ 47*4882a593Smuzhiyun extern void *critirq_ctx[NR_CPUS]; 48*4882a593Smuzhiyun extern void *dbgirq_ctx[NR_CPUS]; 49*4882a593Smuzhiyun extern void *mcheckirq_ctx[NR_CPUS]; 50*4882a593Smuzhiyun #endif 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun /* 53*4882a593Smuzhiyun * Per-cpu stacks for handling hard and soft interrupts. 54*4882a593Smuzhiyun */ 55*4882a593Smuzhiyun extern void *hardirq_ctx[NR_CPUS]; 56*4882a593Smuzhiyun extern void *softirq_ctx[NR_CPUS]; 57*4882a593Smuzhiyun 58*4882a593Smuzhiyun void call_do_softirq(void *sp); 59*4882a593Smuzhiyun void call_do_irq(struct pt_regs *regs, void *sp); 60*4882a593Smuzhiyun extern void do_IRQ(struct pt_regs *regs); 61*4882a593Smuzhiyun extern void __init init_IRQ(void); 62*4882a593Smuzhiyun extern void __do_irq(struct pt_regs *regs); 63*4882a593Smuzhiyun 64*4882a593Smuzhiyun int irq_choose_cpu(const struct cpumask *mask); 65*4882a593Smuzhiyun 66*4882a593Smuzhiyun #endif /* _ASM_IRQ_H */ 67*4882a593Smuzhiyun #endif /* __KERNEL__ */ 68