mpbiosreg.h revision 1.3 
1/* $NetBSD: mpbiosreg.h,v 1.3 2003/01/07 18:48:45 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 _I386_MPBIOSREG_H_
42#define _I386_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 */
61struct 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 */
79struct 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
97struct 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_long  cpu_signature;
105	u_long  feature_flags;
106	u_long  reserved1;
107	u_long  reserved2;
108};
109
110struct mpbios_bus {
111	u_int8_t  type;
112	u_int8_t  bus_id;
113	char    bus_type[6];
114};
115
116struct 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	void   *apic_address;
123};
124
125struct 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 /* !_I386_MPBIOSREG_H_ */
138