1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 #ifndef _ASM_POWERPC_IRQ_H
4 #define _ASM_POWERPC_IRQ_H
9 #include <linux/threads.h>
10 #include <linux/list.h>
11 #include <linux/radix-tree.h>
13 #include <asm/types.h>
14 #include <linux/atomic.h>
17 extern atomic_t ppc_n_lost_interrupts;
19 /* This number is used when no interrupt has been assigned */
22 /* Total number of virq in the platform */
23 #define NR_IRQS CONFIG_NR_IRQS
25 /* Number of irqs reserved for a legacy isa controller */
26 #define NR_IRQS_LEGACY 16
28 extern irq_hw_number_t virq_to_hw(unsigned int virq);
30 static __inline__ int irq_canonicalize(int irq)
35 extern int distribute_irqs;
39 #if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
41 * Per-cpu stacks for handling critical, debug and machine check
44 extern void *critirq_ctx[NR_CPUS];
45 extern void *dbgirq_ctx[NR_CPUS];
46 extern void *mcheckirq_ctx[NR_CPUS];
50 * Per-cpu stacks for handling hard and soft interrupts.
52 extern void *hardirq_ctx[NR_CPUS];
53 extern void *softirq_ctx[NR_CPUS];
55 void __do_IRQ(struct pt_regs *regs);
56 extern void __init init_IRQ(void);
57 extern void __do_irq(struct pt_regs *regs);
59 int irq_choose_cpu(const struct cpumask *mask);
61 #endif /* _ASM_IRQ_H */
62 #endif /* __KERNEL__ */