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 /* Total number of virq in the platform */
20 #define NR_IRQS CONFIG_NR_IRQS
22 /* Number of irqs reserved for a legacy isa controller */
23 #define NR_IRQS_LEGACY 16
25 extern irq_hw_number_t virq_to_hw(unsigned int virq);
27 static __inline__ int irq_canonicalize(int irq)
32 extern int distribute_irqs;
36 #ifdef CONFIG_BOOKE_OR_40x
38 * Per-cpu stacks for handling critical, debug and machine check
41 extern void *critirq_ctx[NR_CPUS];
42 extern void *dbgirq_ctx[NR_CPUS];
43 extern void *mcheckirq_ctx[NR_CPUS];
47 * Per-cpu stacks for handling hard and soft interrupts.
49 extern void *hardirq_ctx[NR_CPUS];
50 extern void *softirq_ctx[NR_CPUS];
52 void __do_IRQ(struct pt_regs *regs);
54 int irq_choose_cpu(const struct cpumask *mask);
56 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_NMI_IPI)
57 extern void arch_trigger_cpumask_backtrace(const cpumask_t *mask,
59 #define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
62 #endif /* _ASM_IRQ_H */
63 #endif /* __KERNEL__ */