1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
|
/* $OpenBSD: specialreg.h,v 1.5 1998/05/25 06:52:38 downsj Exp $ */
/* $NetBSD: specialreg.h,v 1.7 1994/10/27 04:16:26 cgd Exp $ */
/*-
* Copyright (c) 1991 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)specialreg.h 7.1 (Berkeley) 5/9/91
*/
/*
* Bits in 386 special registers:
*/
#define CR0_PE 0x00000001 /* Protected mode Enable */
#define CR0_MP 0x00000002 /* "Math" Present (NPX or NPX emulator) */
#define CR0_EM 0x00000004 /* EMulate non-NPX coproc. (trap ESC only) */
#define CR0_TS 0x00000008 /* Task Switched (if MP, trap ESC and WAIT) */
#define CR0_ET 0x00000010 /* Extension Type (387 (if set) vs 287) */
#define CR0_PG 0x80000000 /* PaGing enable */
/*
* Bits in 486 special registers:
*/
#define CR0_NE 0x00000020 /* Numeric Error enable (EX16 vs IRQ13) */
#define CR0_WP 0x00010000 /* Write Protect (honor PG_RW in all modes) */
#define CR0_AM 0x00040000 /* Alignment Mask (set to enable AC flag) */
#define CR0_NW 0x20000000 /* Not Write-through */
#define CR0_CD 0x40000000 /* Cache Disable */
/*
* Cyrix 486 DLC special registers, accessable as IO ports.
*/
#define CCR0 0xc0 /* configuration control register 0 */
#define CCR0_NC0 0x01 /* first 64K of each 1M memory region is non-cacheable */
#define CCR0_NC1 0x02 /* 640K-1M region is non-cacheable */
#define CCR0_A20M 0x04 /* enables A20M# input pin */
#define CCR0_KEN 0x08 /* enables KEN# input pin */
#define CCR0_FLUSH 0x10 /* enables FLUSH# input pin */
#define CCR0_BARB 0x20 /* flushes internal cache when entering hold state */
#define CCR0_CO 0x40 /* cache org: 1=direct mapped, 0=2x set assoc */
#define CCR0_SUSPEND 0x80 /* enables SUSP# and SUSPA# pins */
#define CCR1 0xc1 /* configuration control register 1 */
#define CCR1_RPL 0x01 /* enables RPLSET and RPLVAL# pins */
/* the remaining 7 bits of this register are reserved */
/*
* bits in the pentiums %cr4 register:
*/
#define CR4_VME 0x00000001 /* virtual 8086 mode extension enable */
#define CR4_PVI 0x00000002 /* protected mode virtual interrupt enable */
#define CR4_TSD 0x00000004 /* restrict RDTSC instruction to cpl 0 only */
#define CR4_DE 0x00000008 /* debugging extension */
#define CR4_PSE 0x00000010 /* large (4MB) page size enable */
#define CR4_PAE 0x00000020 /* physical address extension enable */
#define CR4_MCE 0x00000040 /* machine check enable */
#define CR4_PGE 0x00000080 /* page global enable */
#define CR4_PCE 0x00000100 /* enable RDPMC instruction for all cpls */
/*
* CPUID "features" (and "extended features") bits:
*/
#define CPUID_FPU 0x00000001 /* processor has an FPU? */
#define CPUID_VME 0x00000002 /* has virtual mode (%cr4's VME/PVI) */
#define CPUID_DE 0x00000004 /* has debugging extension */
#define CPUID_PSE 0x00000008 /* has page 4MB page size extension */
#define CPUID_TSC 0x00000010 /* has time stamp counter */
#define CPUID_MSR 0x00000020 /* has mode specific registers */
#define CPUID_PAE 0x00000040 /* has phys address extension */
#define CPUID_MCE 0x00000080 /* has machine check exception */
#define CPUID_CX8 0x00000100 /* has CMPXCHG8B instruction */
#define CPUID_APIC 0x00000200 /* has enabled APIC */
#define CPUID_SYS1 0x00000400 /* has SYSCALL/SYSRET inst. (Cyrix) */
#define CPUID_SYS2 0x00000800 /* has SYSCALL/SYSRET inst. (AMD) */
#define CPUID_MTRR 0x00001000 /* has memory type range register */
#define CPUID_PGE 0x00002000 /* has page global extension */
#define CPUID_MCA 0x00004000 /* has machine check architecture */
#define CPUID_CMOV 0x00008000 /* has CMOVcc instruction */
#define CPUID_MMX 0x00800000 /* has MMX instructions */
#define CPUID_EMMX 0x01000000 /* has extended MMX (Cyrix) */
#define CPUID_3D 0x80000000 /* has AMD-3D instructions (AMD) */
/*
* the following four 3-byte registers control the non-cacheable regions.
* These registers must be written as three seperate bytes.
*
* NCRx+0: A31-A24 of starting address
* NCRx+1: A23-A16 of starting address
* NCRx+2: A15-A12 of starting address | NCR_SIZE_xx.
*
* The non-cacheable region's starting address must be aligned to the
* size indicated by the NCR_SIZE_xx field.
*/
#define NCR1 0xc4
#define NCR2 0xc7
#define NCR3 0xca
#define NCR4 0xcd
#define NCR_SIZE_0K 0
#define NCR_SIZE_4K 1
#define NCR_SIZE_8K 2
#define NCR_SIZE_16K 3
#define NCR_SIZE_32K 4
#define NCR_SIZE_64K 5
#define NCR_SIZE_128K 6
#define NCR_SIZE_256K 7
#define NCR_SIZE_512K 8
#define NCR_SIZE_1M 9
#define NCR_SIZE_2M 10
#define NCR_SIZE_4M 11
#define NCR_SIZE_8M 12
#define NCR_SIZE_16M 13
#define NCR_SIZE_32M 14
#define NCR_SIZE_4G 15
|
