source: mainline/kernel/arch/ia32/include/pm.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: 4.3 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
[06e1e95]29/** @addtogroup ia32
[b45c443]30 * @{
31 */
32/** @file
33 */
34
[06e1e95]35#ifndef KERN_ia32_PM_H_
36#define KERN_ia32_PM_H_
[f761f1eb]37
[7e956eb]38#define IDT_ITEMS 64
39#define GDT_ITEMS 7
[22cf454d]40
41#define VESA_INIT_SEGMENT 0x8000
[f761f1eb]42
43#define NULL_DES 0
44#define KTEXT_DES 1
45#define KDATA_DES 2
46#define UTEXT_DES 3
47#define UDATA_DES 4
48#define TSS_DES 5
[f476e76]49#define TLS_DES 6 /* Pointer to Thread-Local-Storage data */
[e8194664]50
51#ifdef CONFIG_FB
52
53#define VESA_INIT_SEGMENT 0x8000
[22cf454d]54#define VESA_INIT_DES 7
[e8194664]55#undef GDT_ITEMS
56#define GDT_ITEMS 8
57
58#endif /* CONFIG_FB */
59
[f761f1eb]60
[f476e76]61#define selector(des) ((des) << 3)
[f761f1eb]62
63#define PL_KERNEL 0
64#define PL_USER 3
65
[7e956eb]66#define AR_PRESENT (1 << 7)
67#define AR_DATA (2 << 3)
68#define AR_CODE (3 << 3)
69#define AR_WRITABLE (1 << 1)
[f761f1eb]70#define AR_INTERRUPT (0xe)
71#define AR_TSS (0x9)
72
[7e956eb]73#define DPL_KERNEL (PL_KERNEL << 5)
74#define DPL_USER (PL_USER << 5)
[f761f1eb]75
[39cea6a]76#define TSS_BASIC_SIZE 104
[7e956eb]77#define TSS_IOMAP_SIZE (16 * 1024 + 1) /* 16K for bitmap + 1 terminating byte for convenience */
[f761f1eb]78
[7e956eb]79#define IO_PORTS (64 * 1024)
[73e9b49]80
[8f2153b]81#ifndef __ASM__
82
83#include <arch/types.h>
84#include <arch/context.h>
85
[f761f1eb]86struct ptr_16_32 {
[7f1c620]87 uint16_t limit;
88 uint32_t base;
[f761f1eb]89} __attribute__ ((packed));
[39cea6a]90typedef struct ptr_16_32 ptr_16_32_t;
[f761f1eb]91
92struct descriptor {
93 unsigned limit_0_15: 16;
94 unsigned base_0_15: 16;
95 unsigned base_16_23: 8;
96 unsigned access: 8;
97 unsigned limit_16_19: 4;
98 unsigned available: 1;
99 unsigned unused: 1;
100 unsigned special: 1;
101 unsigned granularity : 1;
102 unsigned base_24_31: 8;
103} __attribute__ ((packed));
[39cea6a]104typedef struct descriptor descriptor_t;
[f761f1eb]105
106struct idescriptor {
107 unsigned offset_0_15: 16;
108 unsigned selector: 16;
109 unsigned unused: 8;
110 unsigned access: 8;
111 unsigned offset_16_31: 16;
112} __attribute__ ((packed));
[39cea6a]113typedef struct idescriptor idescriptor_t;
[f761f1eb]114
115struct tss {
[7f1c620]116 uint16_t link;
[f761f1eb]117 unsigned : 16;
[7f1c620]118 uint32_t esp0;
119 uint16_t ss0;
[f761f1eb]120 unsigned : 16;
[7f1c620]121 uint32_t esp1;
122 uint16_t ss1;
[f761f1eb]123 unsigned : 16;
[7f1c620]124 uint32_t esp2;
125 uint16_t ss2;
[f761f1eb]126 unsigned : 16;
[7f1c620]127 uint32_t cr3;
128 uint32_t eip;
129 uint32_t eflags;
130 uint32_t eax;
131 uint32_t ecx;
132 uint32_t edx;
133 uint32_t ebx;
134 uint32_t esp;
135 uint32_t ebp;
136 uint32_t esi;
137 uint32_t edi;
138 uint16_t es;
[f761f1eb]139 unsigned : 16;
[7f1c620]140 uint16_t cs;
[f761f1eb]141 unsigned : 16;
[7f1c620]142 uint16_t ss;
[f761f1eb]143 unsigned : 16;
[7f1c620]144 uint16_t ds;
[f761f1eb]145 unsigned : 16;
[7f1c620]146 uint16_t fs;
[f761f1eb]147 unsigned : 16;
[7f1c620]148 uint16_t gs;
[f761f1eb]149 unsigned : 16;
[7f1c620]150 uint16_t ldtr;
[f761f1eb]151 unsigned : 16;
152 unsigned : 16;
[7f1c620]153 uint16_t iomap_base;
154 uint8_t iomap[TSS_IOMAP_SIZE];
[f761f1eb]155} __attribute__ ((packed));
[39cea6a]156typedef struct tss tss_t;
[f761f1eb]157
[39cea6a]158extern ptr_16_32_t gdtr;
159extern ptr_16_32_t bootstrap_gdtr;
160extern ptr_16_32_t protected_ap_gdtr;
[f761f1eb]161extern struct tss *tss_p;
162
[39cea6a]163extern descriptor_t gdt[];
[f761f1eb]164
165extern void pm_init(void);
166
[7f1c620]167extern void gdt_setbase(descriptor_t *d, uintptr_t base);
168extern void gdt_setlimit(descriptor_t *d, uint32_t limit);
[f761f1eb]169
170extern void idt_init(void);
[7f1c620]171extern void idt_setoffset(idescriptor_t *d, uintptr_t offset);
[f761f1eb]172
[39cea6a]173extern void tss_initialize(tss_t *t);
[7f1c620]174extern void set_tls_desc(uintptr_t tls);
[f761f1eb]175
[8f2153b]176#endif /* __ASM__ */
177
[f761f1eb]178#endif
[b45c443]179
[06e1e95]180/** @}
[b45c443]181 */
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