| 1 | #ifdef __KERNEL__ |
| 2 | #ifndef _ASM_POWERPC_IRQ_H |
| 3 | #define _ASM_POWERPC_IRQ_H |
| 4 | |
| 5 | /* |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License |
| 8 | * as published by the Free Software Foundation; either version |
| 9 | * 2 of the License, or (at your option) any later version. |
| 10 | */ |
| 11 | |
| 12 | #include <linux/irqdomain.h> |
| 13 | #include <linux/threads.h> |
| 14 | #include <linux/list.h> |
| 15 | #include <linux/radix-tree.h> |
| 16 | |
| 17 | #include <asm/types.h> |
| 18 | #include <linux/atomic.h> |
| 19 | |
| 20 | |
| 21 | extern atomic_t ppc_n_lost_interrupts; |
| 22 | |
| 23 | /* This number is used when no interrupt has been assigned */ |
| 24 | #define NO_IRQ (0) |
| 25 | |
| 26 | /* Total number of virq in the platform */ |
| 27 | #define NR_IRQS CONFIG_NR_IRQS |
| 28 | |
| 29 | /* Same thing, used by the generic IRQ code */ |
| 30 | #define NR_IRQS_LEGACY NUM_ISA_INTERRUPTS |
| 31 | |
| 32 | extern irq_hw_number_t virq_to_hw(unsigned int virq); |
| 33 | |
| 34 | static __inline__ int irq_canonicalize(int irq) |
| 35 | { |
| 36 | return irq; |
| 37 | } |
| 38 | |
| 39 | extern int distribute_irqs; |
| 40 | |
| 41 | struct irqaction; |
| 42 | struct pt_regs; |
| 43 | |
| 44 | #define __ARCH_HAS_DO_SOFTIRQ |
| 45 | |
| 46 | #if defined(CONFIG_BOOKE) || defined(CONFIG_40x) |
| 47 | /* |
| 48 | * Per-cpu stacks for handling critical, debug and machine check |
| 49 | * level interrupts. |
| 50 | */ |
| 51 | extern struct thread_info *critirq_ctx[NR_CPUS]; |
| 52 | extern struct thread_info *dbgirq_ctx[NR_CPUS]; |
| 53 | extern struct thread_info *mcheckirq_ctx[NR_CPUS]; |
| 54 | extern void exc_lvl_ctx_init(void); |
| 55 | #else |
| 56 | #define exc_lvl_ctx_init() |
| 57 | #endif |
| 58 | |
| 59 | /* |
| 60 | * Per-cpu stacks for handling hard and soft interrupts. |
| 61 | */ |
| 62 | extern struct thread_info *hardirq_ctx[NR_CPUS]; |
| 63 | extern struct thread_info *softirq_ctx[NR_CPUS]; |
| 64 | |
| 65 | extern void irq_ctx_init(void); |
| 66 | extern void call_do_softirq(struct thread_info *tp); |
| 67 | extern void call_do_irq(struct pt_regs *regs, struct thread_info *tp); |
| 68 | extern void do_IRQ(struct pt_regs *regs); |
| 69 | extern void __do_irq(struct pt_regs *regs); |
| 70 | |
| 71 | int irq_choose_cpu(const struct cpumask *mask); |
| 72 | |
| 73 | #endif /* _ASM_IRQ_H */ |
| 74 | #endif /* __KERNEL__ */ |