blob: edd0b95f14d0df6dd9b4f4cfb01d02548d485c9b [file] [log] [blame]
#ifndef _ASM_HW_IRQ_H
#define _ASM_HW_IRQ_H
* (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
* moved some of the old arch/i386/kernel/irq.h to here. VY
* IRQ/IPI changes taken from work by Thomas Radke
* <>
* hacked by Andi Kleen for x86-64.
* unified by tglx
#include <asm/irq_vectors.h>
#ifndef __ASSEMBLY__
#include <linux/percpu.h>
#include <linux/profile.h>
#include <linux/smp.h>
#include <asm/atomic.h>
#include <asm/irq.h>
#include <asm/sections.h>
#define platform_legacy_irq(irq) ((irq) < 16)
/* Interrupt handlers registered during init_IRQ */
extern void apic_timer_interrupt(void);
extern void error_interrupt(void);
extern void spurious_interrupt(void);
extern void thermal_interrupt(void);
extern void reschedule_interrupt(void);
extern void invalidate_interrupt(void);
extern void invalidate_interrupt0(void);
extern void invalidate_interrupt1(void);
extern void invalidate_interrupt2(void);
extern void invalidate_interrupt3(void);
extern void invalidate_interrupt4(void);
extern void invalidate_interrupt5(void);
extern void invalidate_interrupt6(void);
extern void invalidate_interrupt7(void);
extern void irq_move_cleanup_interrupt(void);
extern void threshold_interrupt(void);
extern void call_function_interrupt(void);
extern void call_function_single_interrupt(void);
/* PIC specific functions */
extern void disable_8259A_irq(unsigned int irq);
extern void enable_8259A_irq(unsigned int irq);
extern int i8259A_irq_pending(unsigned int irq);
extern void make_8259A_irq(unsigned int irq);
extern void init_8259A(int aeoi);
/* IOAPIC */
#define IO_APIC_IRQ(x) (((x) >= 16) || ((1<<(x)) & io_apic_irqs))
extern unsigned long io_apic_irqs;
extern void init_VISWS_APIC_irqs(void);
extern void setup_IO_APIC(void);
extern void disable_IO_APIC(void);
extern void print_IO_APIC(void);
extern int IO_APIC_get_PCI_irq_vector(int bus, int slot, int fn);
extern void setup_ioapic_dest(void);
#ifdef CONFIG_X86_64
extern void enable_IO_APIC(void);
/* IPI functions */
extern void send_IPI_self(int vector);
extern void send_IPI(int dest, int vector);
/* Statistics */
extern atomic_t irq_err_count;
extern atomic_t irq_mis_count;
/* EISA */
extern void eisa_set_level_irq(unsigned int irq);
/* Voyager functions */
extern asmlinkage void vic_cpi_interrupt(void);
extern asmlinkage void vic_sys_interrupt(void);
extern asmlinkage void vic_cmn_interrupt(void);
extern asmlinkage void qic_timer_interrupt(void);
extern asmlinkage void qic_invalidate_interrupt(void);
extern asmlinkage void qic_reschedule_interrupt(void);
extern asmlinkage void qic_enable_irq_interrupt(void);
extern asmlinkage void qic_call_function_interrupt(void);
#ifdef CONFIG_X86_32
extern void (*const interrupt[NR_IRQS])(void);
typedef int vector_irq_t[NR_VECTORS];
DECLARE_PER_CPU(vector_irq_t, vector_irq);
#if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_X86_64)
extern void lock_vector_lock(void);
extern void unlock_vector_lock(void);
extern void __setup_vector_irq(int cpu);
static inline void lock_vector_lock(void) {}
static inline void unlock_vector_lock(void) {}
static inline void __setup_vector_irq(int cpu) {}
#endif /* !ASSEMBLY_ */