1/* $OpenBSD: mpbiosreg.h,v 1.6 2023/04/10 04:21:20 jsg Exp $ */
2/* $NetBSD: mpbiosreg.h,v 1.1.2.3 2000/02/29 13:17:51 sommerfeld Exp $ */
3
4/*-
5 * Copyright (c) 2000 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by RedBack Networks Inc.
10 *
11 * Author: Bill Sommerfeld
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 * POSSIBILITY OF SUCH DAMAGE.
33 */
34
35#ifndef _MACHINE_MPBIOSREG_H_
36#define _MACHINE_MPBIOSREG_H_
37
38#define BIOS_BASE (0xf0000)
39#define BIOS_SIZE (0x10000)
40#define BIOS_COUNT (BIOS_SIZE)
41
42/*
43 * Multiprocessor config table entry types.
44 */
45
46#define MPS_MCT_CPU 0
47#define MPS_MCT_BUS 1
48#define MPS_MCT_IOAPIC 2
49#define MPS_MCT_IOINT 3
50#define MPS_MCT_LINT 4
51
52#define MPS_MCT_NTYPES 5
53
54/*
55 * Interrupt types
56 */
57
58#define MPS_INTTYPE_INT 0
59#define MPS_INTTYPE_NMI 1
60#define MPS_INTTYPE_SMI 2
61#define MPS_INTTYPE_ExtINT 3
62
63#define MPS_INTPO_DEF 0
64#define MPS_INTPO_ACTHI 1
65#define MPS_INTPO_ACTLO 3
66#define MPS_INTPO_SHIFT 0
67#define MPS_INTPO_MASK 3
68
69#define MPS_INTTR_DEF 0
70#define MPS_INTTR_EDGE 1
71#define MPS_INTTR_LEVEL 3
72#define MPS_INTTR_SHIFT 2
73#define MPS_INTTR_MASK 3
74
75#define MPS_INT(p,t) \
76 ((((p) & MPS_INTPO_MASK) << MPS_INTPO_SHIFT) | \
77 (((t) & MPS_INTTR_MASK) << MPS_INTTR_SHIFT))
78
79/* MP Floating Pointer Structure */
80struct mpbios_fps {
81 u_int32_t signature;
82/* string defined by the Intel MP Spec as identifying the MP table */
83#define MP_FP_SIG 0x5f504d5f /* _MP_ */
84
85 u_int32_t pap;
86 u_int8_t length;
87 u_int8_t spec_rev;
88 u_int8_t checksum;
89 u_int8_t mpfb1; /* system configuration */
90 u_int8_t mpfb2; /* flags */
91#define MPFPS_FLAG_IMCR 0x80 /* IMCR present */
92 u_int8_t mpfb3; /* unused */
93 u_int8_t mpfb4; /* unused */
94 u_int8_t mpfb5; /* unused */
95};
96
97/* MP Configuration Table Header */
98struct mpbios_cth {
99 u_int32_t signature;
100#define MP_CT_SIG 0x504d4350 /* PCMP */
101
102 u_int16_t base_len;
103 u_int8_t spec_rev;
104 u_int8_t checksum;
105 u_int8_t oem_id[8];
106 u_int8_t product_id[12];
107 u_int32_t oem_table_pointer;
108 u_int16_t oem_table_size;
109 u_int16_t entry_count;
110 u_int32_t apic_address;
111 u_int16_t ext_len;
112 u_int8_t ext_cksum;
113 u_int8_t reserved;
114};
115
116struct mpbios_proc {
117 u_int8_t type;
118 u_int8_t apic_id;
119 u_int8_t apic_version;
120 u_int8_t cpu_flags;
121#define PROCENTRY_FLAG_EN 0x01
122#define PROCENTRY_FLAG_BP 0x02
123 u_long cpu_signature;
124 u_long feature_flags;
125 u_long reserved1;
126 u_long reserved2;
127};
128
129struct mpbios_bus {
130 u_int8_t type;
131 u_int8_t bus_id;
132 char bus_type[6];
133};
134
135struct mpbios_ioapic {
136 u_int8_t type;
137 u_int8_t apic_id;
138 u_int8_t apic_version;
139 u_int8_t apic_flags;
140#define IOAPICENTRY_FLAG_EN 0x01
141 void *apic_address;
142};
143
144struct mpbios_int {
145 u_int8_t type;
146 u_int8_t int_type;
147 u_int16_t int_flags;
148 u_int8_t src_bus_id;
149 u_int8_t src_bus_irq;
150 u_int8_t dst_apic_id;
151#define MPS_ALL_APICS 0xff
152 u_int8_t dst_apic_int;
153};
154
155#endif /* !_MACHINE_MPBIOSREG_H_ */