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 /* Total number of virq in the platform */
20 #define NR_IRQS CONFIG_NR_IRQS
21
22 /* Number of irqs reserved for a legacy isa controller */
23 #define NR_IRQS_LEGACY 16
24
25 extern irq_hw_number_t virq_to_hw(unsigned int virq);
26
27 static __inline__ int irq_canonicalize(int irq)
28 {
29 return irq;
30 }
31
32 extern int distribute_irqs;
33
34 struct pt_regs;
35
36 #ifdef CONFIG_BOOKE
37 /*
38 * Per-cpu stacks for handling critical, debug and machine check
39 * level interrupts.
40 */
41 extern void *critirq_ctx[NR_CPUS];
42 extern void *dbgirq_ctx[NR_CPUS];
43 extern void *mcheckirq_ctx[NR_CPUS];
44 #endif
45
46 /*
47 * Per-cpu stacks for handling hard and soft interrupts.
48 */
49 extern void *hardirq_ctx[NR_CPUS];
50 extern void *softirq_ctx[NR_CPUS];
51
52 void __do_IRQ(struct pt_regs *regs);
53
54 int irq_choose_cpu(const struct cpumask *mask);
55
56 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_NMI_IPI)
57 extern void arch_trigger_cpumask_backtrace(const cpumask_t *mask,
58 int exclude_cpu);
59 #define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
60 #endif
61
62 #endif /* _ASM_IRQ_H */
63 #endif /* __KERNEL__ */
64
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