1/* -*- mode: c; c-basic-offset: 8 -*- */ 2 3/* Copyright (C) 2002 4 * 5 * Author: James.Bottomley@HansenPartnership.com 6 * 7 * linux/arch/i386/voyager/irq_vectors.h 8 * 9 * This file provides definitions for the VIC and QIC CPIs 10 */ 11 12#ifndef _ASM_IRQ_VECTORS_H 13#define _ASM_IRQ_VECTORS_H 14 15/* 16 * IDT vectors usable for external interrupt sources start 17 * at 0x20: 18 */ 19#define FIRST_EXTERNAL_VECTOR 0x20 20 21#define SYSCALL_VECTOR 0x80 22 23/* 24 * Vectors 0x20-0x2f are used for ISA interrupts. 25 */ 26 27/* These define the CPIs we use in linux */ 28#define VIC_CPI_LEVEL0 0 29#define VIC_CPI_LEVEL1 1 30/* now the fake CPIs */ 31#define VIC_TIMER_CPI 2 32#define VIC_INVALIDATE_CPI 3 33#define VIC_RESCHEDULE_CPI 4 34#define VIC_ENABLE_IRQ_CPI 5 35#define VIC_CALL_FUNCTION_CPI 6 36 37/* Now the QIC CPIs: Since we don't need the two initial levels, 38 * these are 2 less than the VIC CPIs */ 39#define QIC_CPI_OFFSET 1 40#define QIC_TIMER_CPI (VIC_TIMER_CPI - QIC_CPI_OFFSET) 41#define QIC_INVALIDATE_CPI (VIC_INVALIDATE_CPI - QIC_CPI_OFFSET) 42#define QIC_RESCHEDULE_CPI (VIC_RESCHEDULE_CPI - QIC_CPI_OFFSET) 43#define QIC_ENABLE_IRQ_CPI (VIC_ENABLE_IRQ_CPI - QIC_CPI_OFFSET) 44#define QIC_CALL_FUNCTION_CPI (VIC_CALL_FUNCTION_CPI - QIC_CPI_OFFSET) 45 46#define VIC_START_FAKE_CPI VIC_TIMER_CPI 47#define VIC_END_FAKE_CPI VIC_CALL_FUNCTION_CPI 48 49/* this is the SYS_INT CPI. */ 50#define VIC_SYS_INT 8 51#define VIC_CMN_INT 15 52 53/* This is the boot CPI for alternate processors. It gets overwritten 54 * by the above once the system has activated all available processors */ 55#define VIC_CPU_BOOT_CPI VIC_CPI_LEVEL0 56#define VIC_CPU_BOOT_ERRATA_CPI (VIC_CPI_LEVEL0 + 8) 57 58#define NR_VECTORS 256 59#define NR_IRQS 224 60#define NR_IRQ_VECTORS NR_IRQS 61 62#define FPU_IRQ 13 63 64#define FIRST_VM86_IRQ 3 65#define LAST_VM86_IRQ 15 66#define invalid_vm86_irq(irq) ((irq) < 3 || (irq) > 15) 67 68#ifndef __ASSEMBLY__ 69extern asmlinkage void vic_cpi_interrupt(void); 70extern asmlinkage void vic_sys_interrupt(void); 71extern asmlinkage void vic_cmn_interrupt(void); 72extern asmlinkage void qic_timer_interrupt(void); 73extern asmlinkage void qic_invalidate_interrupt(void); 74extern asmlinkage void qic_reschedule_interrupt(void); 75extern asmlinkage void qic_enable_irq_interrupt(void); 76extern asmlinkage void qic_call_function_interrupt(void); 77#endif /* !__ASSEMBLY__ */ 78 79#endif /* _ASM_IRQ_VECTORS_H */ 80