xref: /netbsd-src/sys/arch/x86/include/mpbiosreg.h (revision aaf4ece63a859a04e37cf3a7229b5fab0157cc06)
1 /* 	$NetBSD: mpbiosreg.h,v 1.3 2003/03/04 23:27:32 fvdl Exp $ */
2 
3 /*-
4  * Copyright (c) 2000 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by RedBack Networks Inc.
9  *
10  * Author: Bill Sommerfeld
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following conditions
14  * are met:
15  * 1. Redistributions of source code must retain the above copyright
16  *    notice, this list of conditions and the following disclaimer.
17  * 2. Redistributions in binary form must reproduce the above copyright
18  *    notice, this list of conditions and the following disclaimer in the
19  *    documentation and/or other materials provided with the distribution.
20  * 3. All advertising materials mentioning features or use of this software
21  *    must display the following acknowledgement:
22  *        This product includes software developed by the NetBSD
23  *        Foundation, Inc. and its contributors.
24  * 4. Neither the name of The NetBSD Foundation nor the names of its
25  *    contributors may be used to endorse or promote products derived
26  *    from this software without specific prior written permission.
27  *
28  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
29  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
30  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
31  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
32  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
33  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
34  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
35  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
36  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
37  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38  * POSSIBILITY OF SUCH DAMAGE.
39  */
40 
41 #ifndef _X86_MPBIOSREG_H_
42 #define _X86_MPBIOSREG_H_
43 
44 #define BIOS_BASE		(0xf0000)
45 #define BIOS_SIZE		(0x10000)
46 #define BIOS_COUNT		(BIOS_SIZE)
47 
48 /*
49  * Multiprocessor config table entry types.
50  */
51 
52 #define MPS_MCT_CPU	0
53 #define MPS_MCT_BUS	1
54 #define MPS_MCT_IOAPIC	2
55 #define MPS_MCT_IOINT	3
56 #define MPS_MCT_LINT	4
57 
58 #define MPS_MCT_NTYPES	5
59 
60 /* MP Floating Pointer Structure */
61 struct mpbios_fps {
62 	u_int32_t	signature;
63 /* string defined by the Intel MP Spec as identifying the MP table */
64 #define MP_FP_SIG		0x5f504d5f	/* _MP_ */
65 
66 	u_int32_t 	pap;
67 	u_int8_t  	length;
68 	u_int8_t  	spec_rev;
69 	u_int8_t  	checksum;
70 	u_int8_t  	mpfb1;	/* system configuration */
71 	u_int8_t  	mpfb2;	/* flags */
72 #define MPFPS_FLAG_IMCR		0x80	/* IMCR present */
73 	u_int8_t  	mpfb3;	/* unused */
74 	u_int8_t  	mpfb4;	/* unused */
75 	u_int8_t  	mpfb5;	/* unused */
76 };
77 
78 /* MP Configuration Table Header */
79 struct mpbios_cth {
80 	u_int32_t	signature;
81 #define MP_CT_SIG		0x504d4350 	/* PCMP */
82 
83 	u_int16_t 	base_len;
84 	u_int8_t  	spec_rev;
85 	u_int8_t  	checksum;
86 	u_int8_t  	oem_id[8];
87 	u_int8_t  	product_id[12];
88 	u_int32_t	oem_table_pointer;
89 	u_int16_t 	oem_table_size;
90 	u_int16_t 	entry_count;
91 	u_int32_t	apic_address;
92 	u_int16_t	ext_len;
93 	u_int8_t  	ext_cksum;
94 	u_int8_t  	reserved;
95 };
96 
97 struct mpbios_proc {
98 	u_int8_t  type;
99 	u_int8_t  apic_id;
100 	u_int8_t  apic_version;
101 	u_int8_t  cpu_flags;
102 #define PROCENTRY_FLAG_EN	0x01
103 #define PROCENTRY_FLAG_BP	0x02
104 	u_int32_t  cpu_signature;
105 	u_int32_t  feature_flags;
106 	u_int32_t  reserved1;
107 	u_int32_t  reserved2;
108 };
109 
110 struct mpbios_bus {
111 	u_int8_t  type;
112 	u_int8_t  bus_id;
113 	char    bus_type[6];
114 };
115 
116 struct mpbios_ioapic {
117 	u_int8_t  type;
118 	u_int8_t  apic_id;
119 	u_int8_t  apic_version;
120 	u_int8_t  apic_flags;
121 #define IOAPICENTRY_FLAG_EN	0x01
122 	u_int32_t   apic_address;
123 };
124 
125 struct mpbios_int {
126 	u_int8_t  type;
127 	u_int8_t  int_type;
128 	u_int16_t int_flags;
129 	u_int8_t  src_bus_id;
130 	u_int8_t  src_bus_irq;
131 	u_int8_t  dst_apic_id;
132 #define MPS_ALL_APICS	0xff
133 	u_int8_t  dst_apic_int;
134 };
135 
136 
137 #endif /* !_X86_MPBIOSREG_H_ */
138