source: mainline/kernel/arch/ia32/include/interrupt.h@ 8ccd2ea

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 8ccd2ea was 7e956eb, checked in by Jakub Jermar <jakub@…>, 18 years ago

Cleanup.

  • Property mode set to 100644
File size: 3.3 KB
RevLine 
[f761f1eb]1/*
[df4ed85]2 * Copyright (c) 2001-2004 Jakub Jermar
[f761f1eb]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
[3222efd]29/** @addtogroup ia32interrupt
[b45c443]30 * @{
31 */
32/** @file
33 */
34
[06e1e95]35#ifndef KERN_ia32_INTERRUPT_H_
36#define KERN_ia32_INTERRUPT_H_
[f761f1eb]37
38#include <arch/types.h>
39#include <arch/pm.h>
40
[7e956eb]41#define IVT_ITEMS IDT_ITEMS
42#define IVT_FIRST 0
[f761f1eb]43
[9149135]44#define EXC_COUNT 32
45#define IRQ_COUNT 16
[f761f1eb]46
[7e956eb]47#define IVT_EXCBASE 0
48#define IVT_IRQBASE (IVT_EXCBASE + EXC_COUNT)
[cea12e9]49#define IVT_FREEBASE (IVT_IRQBASE + IRQ_COUNT)
[f761f1eb]50
[7e956eb]51#define IRQ_CLK 0
52#define IRQ_KBD 1
53#define IRQ_PIC1 2
[f761f1eb]54#define IRQ_PIC_SPUR 7
[7e956eb]55#define IRQ_MOUSE 12
[f761f1eb]56
57/* this one must have four least significant bits set to ones */
[cea12e9]58#define VECTOR_APIC_SPUR (IVT_ITEMS - 1)
[f761f1eb]59
[cea12e9]60#if (((VECTOR_APIC_SPUR + 1) % 16) || VECTOR_APIC_SPUR >= IVT_ITEMS)
[f761f1eb]61#error Wrong definition of VECTOR_APIC_SPUR
62#endif
63
[7e956eb]64#define VECTOR_DEBUG 1
65#define VECTOR_CLK (IVT_IRQBASE + IRQ_CLK)
66#define VECTOR_PIC_SPUR (IVT_IRQBASE + IRQ_PIC_SPUR)
67#define VECTOR_SYSCALL IVT_FREEBASE
[cea12e9]68#define VECTOR_TLB_SHOOTDOWN_IPI (IVT_FREEBASE + 1)
[7e956eb]69#define VECTOR_DEBUG_IPI (IVT_FREEBASE + 2)
[f761f1eb]70
[b3f8fb7]71typedef struct {
[7f1c620]72 uint32_t eax;
73 uint32_t ecx;
74 uint32_t edx;
75 uint32_t esi;
76 uint32_t edi;
77 uint32_t ebp;
78 uint32_t ebx;
79
80 uint32_t gs;
81 uint32_t fs;
82 uint32_t es;
83 uint32_t ds;
84
85 uint32_t error_word;
86 uint32_t eip;
87 uint32_t cs;
88 uint32_t eflags;
89 uint32_t stack[];
[b3f8fb7]90} istate_t;
[25d7709]91
[874621f]92/** Return true if exception happened while in userspace */
93static inline int istate_from_uspace(istate_t *istate)
94{
95 return !(istate->eip & 0x80000000);
96}
97
[7f1c620]98static inline void istate_set_retaddr(istate_t *istate, uintptr_t retaddr)
[e3c762cd]99{
100 istate->eip = retaddr;
101}
102
[7f1c620]103static inline unative_t istate_get_pc(istate_t *istate)
[874621f]104{
105 return istate->eip;
106}
107
[7f1c620]108extern void (* disable_irqs_function)(uint16_t irqmask);
109extern void (* enable_irqs_function)(uint16_t irqmask);
[f761f1eb]110extern void (* eoi_function)(void);
111
[cea12e9]112extern void decode_istate(istate_t *istate);
113extern void interrupt_init(void);
[7f1c620]114extern void trap_virtual_enable_irqs(uint16_t irqmask);
115extern void trap_virtual_disable_irqs(uint16_t irqmask);
[f761f1eb]116
117#endif
[b45c443]118
[3222efd]119/** @}
[b45c443]120 */
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