137 lines
3.9 KiB
C
137 lines
3.9 KiB
C
#ifndef ASM_X86__HW_IRQ_H
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#define ASM_X86__HW_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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* moved some of the old arch/i386/kernel/irq.h to here. VY
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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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* hacked by Andi Kleen for x86-64.
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* unified by tglx
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*/
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#include <asm/irq_vectors.h>
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#ifndef __ASSEMBLY__
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#include <linux/percpu.h>
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#include <linux/profile.h>
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#include <linux/smp.h>
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#include <asm/atomic.h>
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#include <asm/irq.h>
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#include <asm/sections.h>
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#define platform_legacy_irq(irq) ((irq) < 16)
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/* Interrupt handlers registered during init_IRQ */
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extern void apic_timer_interrupt(void);
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extern void error_interrupt(void);
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extern void spurious_interrupt(void);
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extern void thermal_interrupt(void);
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extern void reschedule_interrupt(void);
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extern void invalidate_interrupt(void);
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extern void invalidate_interrupt0(void);
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extern void invalidate_interrupt1(void);
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extern void invalidate_interrupt2(void);
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extern void invalidate_interrupt3(void);
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extern void invalidate_interrupt4(void);
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extern void invalidate_interrupt5(void);
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extern void invalidate_interrupt6(void);
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extern void invalidate_interrupt7(void);
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extern void irq_move_cleanup_interrupt(void);
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extern void threshold_interrupt(void);
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extern void call_function_interrupt(void);
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extern void call_function_single_interrupt(void);
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/* PIC specific functions */
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extern void disable_8259A_irq(unsigned int irq);
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extern void enable_8259A_irq(unsigned int irq);
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extern int i8259A_irq_pending(unsigned int irq);
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extern void make_8259A_irq(unsigned int irq);
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extern void init_8259A(int aeoi);
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/* IOAPIC */
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#define IO_APIC_IRQ(x) (((x) >= 16) || ((1<<(x)) & io_apic_irqs))
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extern unsigned long io_apic_irqs;
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extern void init_VISWS_APIC_irqs(void);
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extern void setup_IO_APIC(void);
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extern void disable_IO_APIC(void);
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extern int IO_APIC_get_PCI_irq_vector(int bus, int slot, int fn);
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extern void setup_ioapic_dest(void);
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#ifdef CONFIG_X86_64
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extern void enable_IO_APIC(void);
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#endif
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/* IPI functions */
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#ifdef CONFIG_X86_32
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extern void send_IPI_self(int vector);
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#endif
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extern void send_IPI(int dest, int vector);
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/* Statistics */
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extern atomic_t irq_err_count;
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extern atomic_t irq_mis_count;
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/* EISA */
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extern void eisa_set_level_irq(unsigned int irq);
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/* Voyager functions */
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extern asmlinkage void vic_cpi_interrupt(void);
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extern asmlinkage void vic_sys_interrupt(void);
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extern asmlinkage void vic_cmn_interrupt(void);
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extern asmlinkage void qic_timer_interrupt(void);
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extern asmlinkage void qic_invalidate_interrupt(void);
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extern asmlinkage void qic_reschedule_interrupt(void);
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extern asmlinkage void qic_enable_irq_interrupt(void);
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extern asmlinkage void qic_call_function_interrupt(void);
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/* SMP */
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extern void smp_apic_timer_interrupt(struct pt_regs *);
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#ifdef CONFIG_X86_32
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extern void smp_spurious_interrupt(struct pt_regs *);
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extern void smp_error_interrupt(struct pt_regs *);
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#else
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extern asmlinkage void smp_spurious_interrupt(void);
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extern asmlinkage void smp_error_interrupt(void);
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#endif
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#ifdef CONFIG_X86_SMP
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extern void smp_reschedule_interrupt(struct pt_regs *);
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extern void smp_call_function_interrupt(struct pt_regs *);
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extern void smp_call_function_single_interrupt(struct pt_regs *);
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#ifdef CONFIG_X86_32
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extern void smp_invalidate_interrupt(struct pt_regs *);
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#else
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extern asmlinkage void smp_invalidate_interrupt(struct pt_regs *);
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#endif
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#endif
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#ifdef CONFIG_X86_32
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extern void (*const interrupt[NR_IRQS])(void);
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#else
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typedef int vector_irq_t[NR_VECTORS];
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DECLARE_PER_CPU(vector_irq_t, vector_irq);
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#endif
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#if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_X86_64)
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extern void lock_vector_lock(void);
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extern void unlock_vector_lock(void);
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extern void __setup_vector_irq(int cpu);
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#else
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static inline void lock_vector_lock(void) {}
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static inline void unlock_vector_lock(void) {}
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static inline void __setup_vector_irq(int cpu) {}
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#endif
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#endif /* !ASSEMBLY_ */
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#endif /* ASM_X86__HW_IRQ_H */
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