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This simplifies the io_apic.c __assign_irq_vector() logic and removes the explicit SYSCALL_VECTOR check, and also allows for vectors to be reserved by other mechanisms (ie. lguest). [ tglx: arch/x86 adaptation ] Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
#ifndef _ASM_IRQ_H
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#define _ASM_IRQ_H
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/*
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* linux/include/asm/irq.h
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*
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* (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
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*
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* IRQ/IPI changes taken from work by Thomas Radke
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* <tomsoft@informatik.tu-chemnitz.de>
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*/
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#include <linux/sched.h>
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/* include comes from machine specific directory */
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#include "irq_vectors.h"
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#include <asm/thread_info.h>
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static __inline__ int irq_canonicalize(int irq)
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{
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return ((irq == 2) ? 9 : irq);
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}
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#ifdef CONFIG_X86_LOCAL_APIC
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# define ARCH_HAS_NMI_WATCHDOG /* See include/linux/nmi.h */
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#endif
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#ifdef CONFIG_4KSTACKS
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extern void irq_ctx_init(int cpu);
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extern void irq_ctx_exit(int cpu);
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# define __ARCH_HAS_DO_SOFTIRQ
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#else
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# define irq_ctx_init(cpu) do { } while (0)
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# define irq_ctx_exit(cpu) do { } while (0)
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#endif
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#ifdef CONFIG_IRQBALANCE
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extern int irqbalance_disable(char *str);
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#endif
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#ifdef CONFIG_HOTPLUG_CPU
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extern void fixup_irqs(cpumask_t map);
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#endif
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unsigned int do_IRQ(struct pt_regs *regs);
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void init_IRQ(void);
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void __init native_init_IRQ(void);
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/* Interrupt vector management */
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extern DECLARE_BITMAP(used_vectors, NR_VECTORS);
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#endif /* _ASM_IRQ_H */
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