source: mainline/arch/ia32/include/interrupt.h@ 1e9a463

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 1e9a463 was 6de2480e, checked in by Jakub Vana <jakub.vana@…>, 20 years ago

IA-32 FPU lazy context switching.
Doesn't work on Bochs and sometimes produces wrong results on P4.
Seems to work on VMware and PII.

Build script for IA-32 changed to build floppy images (image.bin) 1440K long.
  • Property mode set to 100644
File size: 3.1 KB
Line 
1/*
2 * Copyright (C) 2001-2004 Jakub Jermar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef __INTERRUPT_H__
30#define __INTERRUPT_H__
31
32#include <arch/types.h>
33#include <arch/pm.h>
34
35#define IVT_ITEMS IDT_ITEMS
36
37#define IVT_EXCBASE 0
38#define EXCLAST 31
39
40#define IVT_IRQBASE (IVT_EXCBASE+EXCLAST+1)
41#define IRQLAST 15
42
43#define IVT_FREEBASE (IVT_IRQBASE+IRQLAST+1)
44
45#define IRQ_CLK 0
46#define IRQ_KBD 1
47#define IRQ_PIC1 2
48#define IRQ_PIC_SPUR 7
49
50/* this one must have four least significant bits set to ones */
51#define VECTOR_APIC_SPUR (IVT_ITEMS-1)
52
53#if (((VECTOR_APIC_SPUR + 1)%16) || VECTOR_APIC_SPUR >= IVT_ITEMS)
54#error Wrong definition of VECTOR_APIC_SPUR
55#endif
56
57#define VECTOR_PIC_SPUR (IVT_IRQBASE+IRQ_PIC_SPUR)
58#define VECTOR_CLK (IVT_IRQBASE+IRQ_CLK)
59#define VECTOR_KBD (IVT_IRQBASE+IRQ_KBD)
60
61#define VECTOR_SYSCALL (IVT_FREEBASE+0)
62#define VECTOR_TLB_SHOOTDOWN_IPI (IVT_FREEBASE+1)
63#define VECTOR_WAKEUP_IPI (IVT_FREEBASE+2)
64
65typedef void (* iroutine)(__u8 n, __u32 stack[]);
66
67extern iroutine ivt[IVT_ITEMS];
68
69extern void (* disable_irqs_function)(__u16 irqmask);
70extern void (* enable_irqs_function)(__u16 irqmask);
71extern void (* eoi_function)(void);
72
73extern iroutine trap_register(__u8 n, iroutine f);
74
75extern void trap_dispatcher(__u8 n, __u32 stack[]);
76
77extern void null_interrupt(__u8 n, __u32 stack[]);
78extern void gp_fault(__u8 n, __u32 stack[]);
79extern void nm_fault(__u8 n, __u32 stack[]);
80extern void ss_fault(__u8 n, __u32 stack[]);
81extern void page_fault(__u8 n, __u32 stack[]);
82extern void syscall(__u8 n, __u32 stack[]);
83extern void tlb_shootdown_ipi(__u8 n, __u32 stack[]);
84extern void wakeup_ipi(__u8 n, __u32 stack[]);
85
86extern void trap_virtual_enable_irqs(__u16 irqmask);
87extern void trap_virtual_disable_irqs(__u16 irqmask);
88extern void trap_virtual_eoi(void);
89
90#endif
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