blob: 165421f5821cf6a850f6ccad1fac4f4c5564768d (
plain) (
tree)
|
|
/* -*- mode: c; c-basic-offset: 8 -*- */
/* Copyright (C) 2002
*
* Author: James.Bottomley@HansenPartnership.com
*
* linux/arch/i386/voyager/irq_vectors.h
*
* This file provides definitions for the VIC and QIC CPIs
*/
#ifndef _ASM_IRQ_VECTORS_H
#define _ASM_IRQ_VECTORS_H
/*
* IDT vectors usable for external interrupt sources start
* at 0x20:
*/
#define FIRST_EXTERNAL_VECTOR 0x20
#define SYSCALL_VECTOR 0x80
/*
* Vectors 0x20-0x2f are used for ISA interrupts.
*/
/* These define the CPIs we use in linux */
#define VIC_CPI_LEVEL0 0
#define VIC_CPI_LEVEL1 1
/* now the fake CPIs */
#define VIC_TIMER_CPI 2
#define VIC_INVALIDATE_CPI 3
#define VIC_RESCHEDULE_CPI 4
#define VIC_ENABLE_IRQ_CPI 5
#define VIC_CALL_FUNCTION_CPI 6
/* Now the QIC CPIs: Since we don't need the two initial levels,
* these are 2 less than the VIC CPIs */
#define QIC_CPI_OFFSET 1
#define QIC_TIMER_CPI (VIC_TIMER_CPI - QIC_CPI_OFFSET)
#define QIC_INVALIDATE_CPI (VIC_INVALIDATE_CPI - QIC_CPI_OFFSET)
#define QIC_RESCHEDULE_CPI (VIC_RESCHEDULE_CPI - QIC_CPI_OFFSET)
#define QIC_ENABLE_IRQ_CPI (VIC_ENABLE_IRQ_CPI - QIC_CPI_OFFSET)
#define QIC_CALL_FUNCTION_CPI (VIC_CALL_FUNCTION_CPI - QIC_CPI_OFFSET)
#define VIC_START_FAKE_CPI VIC_TIMER_CPI
#define VIC_END_FAKE_CPI VIC_CALL_FUNCTION_CPI
/* this is the SYS_INT CPI. */
#define VIC_SYS_INT 8
#define VIC_CMN_INT 15
/* This is the boot CPI for alternate processors. It gets overwritten
* by the above once the system has activated all available processors */
#define VIC_CPU_BOOT_CPI VIC_CPI_LEVEL0
#define VIC_CPU_BOOT_ERRATA_CPI (VIC_CPI_LEVEL0 + 8)
#define NR_VECTORS 256
#define NR_IRQS 224
#define NR_IRQ_VECTORS NR_IRQS
#define FPU_IRQ 13
#define FIRST_VM86_IRQ 3
#define LAST_VM86_IRQ 15
#define invalid_vm86_irq(irq) ((irq) < 3 || (irq) > 15)
#ifndef __ASSEMBLY__
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);
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_IRQ_VECTORS_H */
|
