| | 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__ */ |
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