source: mainline/kernel/arch/amd64/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 b3f8fb7, checked in by Martin Decky <martin@…>, 18 years ago

huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes

  • Property mode set to 100644
File size: 4.7 KB
RevLine 
[c245372b]1/*
[df4ed85]2 * Copyright (c) 2001-2004 Jakub Jermar
[c245372b]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 amd64
[b45c443]30 * @{
31 */
32/** @file
33 */
34
[06e1e95]35#ifndef KERN_amd64_PM_H_
36#define KERN_amd64_PM_H_
[c245372b]37
[8fc0d455]38#ifndef __ASM__
[b3f8fb7]39# include <arch/types.h>
40# include <arch/context.h>
[8fc0d455]41#endif
[c245372b]42
43#define IDT_ITEMS 64
[e8194664]44#define GDT_ITEMS 8
[de07bcf]45
[c245372b]46
47#define NULL_DES 0
[dd4d6b0]48/* Warning: Do not reorder next items, unless you look into syscall.c!!! */
[c245372b]49#define KTEXT_DES 1
50#define KDATA_DES 2
[dd4d6b0]51#define UDATA_DES 3
52#define UTEXT_DES 4
[8fc0d455]53#define KTEXT32_DES 5
[dd4d6b0]54/* EndOfWarning */
[8fc0d455]55#define TSS_DES 6
[e8194664]56
57
58
59#ifdef CONFIG_FB
60
[de07bcf]61#define VESA_INIT_DES 8
[e8194664]62#define VESA_INIT_SEGMENT 0x8000
63#undef GDT_ITEMS
64#define GDT_ITEMS 9
65
66#endif /*CONFIG_FB*/
67
68
[c245372b]69
[f476e76]70#define gdtselector(des) ((des) << 3)
71#define idtselector(des) ((des) << 4)
[c245372b]72
73#define PL_KERNEL 0
74#define PL_USER 3
75
76#define AR_PRESENT (1<<7)
77#define AR_DATA (2<<3)
78#define AR_CODE (3<<3)
79#define AR_WRITABLE (1<<1)
[6f878b7]80#define AR_READABLE (1<<1)
[c245372b]81#define AR_TSS (0x9)
[b9e97fb]82#define AR_INTERRUPT (0xe)
83#define AR_TRAP (0xf)
[c245372b]84
85#define DPL_KERNEL (PL_KERNEL<<5)
86#define DPL_USER (PL_USER<<5)
87
[39cea6a]88#define TSS_BASIC_SIZE 104
[9fa16b20]89#define TSS_IOMAP_SIZE (16*1024+1) /* 16K for bitmap + 1 terminating byte for convenience */
[c245372b]90
[73e9b49]91#define IO_PORTS (64*1024)
92
[8fc0d455]93#ifndef __ASM__
94
[c245372b]95struct descriptor {
96 unsigned limit_0_15: 16;
97 unsigned base_0_15: 16;
98 unsigned base_16_23: 8;
99 unsigned access: 8;
100 unsigned limit_16_19: 4;
101 unsigned available: 1;
102 unsigned longmode: 1;
103 unsigned special: 1;
104 unsigned granularity : 1;
105 unsigned base_24_31: 8;
106} __attribute__ ((packed));
[39cea6a]107typedef struct descriptor descriptor_t;
[c245372b]108
[b9e97fb]109struct tss_descriptor {
110 unsigned limit_0_15: 16;
111 unsigned base_0_15: 16;
112 unsigned base_16_23: 8;
113 unsigned type: 4;
[39cea6a]114 unsigned : 1;
[b9e97fb]115 unsigned dpl : 2;
116 unsigned present : 1;
117 unsigned limit_16_19: 4;
118 unsigned available: 1;
[e3b9572]119 unsigned : 2;
[b9e97fb]120 unsigned granularity : 1;
121 unsigned base_24_31: 8;
122 unsigned base_32_63 : 32;
[e3b9572]123 unsigned : 32;
[b9e97fb]124} __attribute__ ((packed));
[39cea6a]125typedef struct tss_descriptor tss_descriptor_t;
[b9e97fb]126
[c245372b]127struct idescriptor {
128 unsigned offset_0_15: 16;
129 unsigned selector: 16;
[b9e97fb]130 unsigned ist:3;
131 unsigned unused: 5;
132 unsigned type: 5;
133 unsigned dpl: 2;
134 unsigned present : 1;
[c245372b]135 unsigned offset_16_31: 16;
[e3b9572]136 unsigned offset_32_63: 32;
137 unsigned : 32;
[c245372b]138} __attribute__ ((packed));
[39cea6a]139typedef struct idescriptor idescriptor_t;
[c245372b]140
[b9e97fb]141struct ptr_16_64 {
[7f1c620]142 uint16_t limit;
143 uint64_t base;
[b9e97fb]144} __attribute__ ((packed));
[39cea6a]145typedef struct ptr_16_64 ptr_16_64_t;
[c245372b]146
[776c91a]147struct ptr_16_32 {
[7f1c620]148 uint16_t limit;
149 uint32_t base;
[776c91a]150} __attribute__ ((packed));
[39cea6a]151typedef struct ptr_16_32 ptr_16_32_t;
[776c91a]152
[c245372b]153struct tss {
[7f1c620]154 uint32_t reserve1;
155 uint64_t rsp0;
156 uint64_t rsp1;
157 uint64_t rsp2;
158 uint64_t reserve2;
159 uint64_t ist1;
160 uint64_t ist2;
161 uint64_t ist3;
162 uint64_t ist4;
163 uint64_t ist5;
164 uint64_t ist6;
165 uint64_t ist7;
166 uint64_t reserve3;
167 uint16_t reserve4;
168 uint16_t iomap_base;
169 uint8_t iomap[TSS_IOMAP_SIZE];
[c245372b]170} __attribute__ ((packed));
[39cea6a]171typedef struct tss tss_t;
[c245372b]172
[39cea6a]173extern tss_t *tss_p;
[c245372b]174
[39cea6a]175extern descriptor_t gdt[];
176extern idescriptor_t idt[];
[c245372b]177
[39cea6a]178extern ptr_16_64_t gdtr;
179extern ptr_16_32_t bootstrap_gdtr;
180extern ptr_16_32_t protected_ap_gdtr;
[b9e97fb]181
[c245372b]182extern void pm_init(void);
183
[7f1c620]184extern void gdt_tss_setbase(descriptor_t *d, uintptr_t base);
185extern void gdt_tss_setlimit(descriptor_t *d, uint32_t limit);
[c245372b]186
187extern void idt_init(void);
[7f1c620]188extern void idt_setoffset(idescriptor_t *d, uintptr_t offset);
[c245372b]189
[39cea6a]190extern void tss_initialize(tss_t *t);
[c245372b]191
[8fc0d455]192#endif /* __ASM__ */
193
[c245372b]194#endif
[b45c443]195
[06e1e95]196/** @}
[b45c443]197 */
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