1/* 	$NetBSD: mpbiosreg.h,v 1.5 2008/04/28 20:23:40 martin 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 *
21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33
34#ifndef _X86_MPBIOSREG_H_
35#define _X86_MPBIOSREG_H_
36
37#define BIOS_BASE		(0xf0000)
38#define BIOS_SIZE		(0x10000)
39#define BIOS_COUNT		(BIOS_SIZE)
40
41/*
42 * Multiprocessor config table entry types.
43 */
44
45#define MPS_MCT_CPU	0
46#define MPS_MCT_BUS	1
47#define MPS_MCT_IOAPIC	2
48#define MPS_MCT_IOINT	3
49#define MPS_MCT_LINT	4
50
51#define MPS_MCT_NTYPES	5
52
53/* MP Floating Pointer Structure */
54struct mpbios_fps {
55	uint32_t	signature;
56/* string defined by the Intel MP Spec as identifying the MP table */
57#define MP_FP_SIG		0x5f504d5f	/* _MP_ */
58
59	uint32_t 	pap;
60	uint8_t  	length;
61	uint8_t  	spec_rev;
62	uint8_t  	checksum;
63	uint8_t  	mpfb1;	/* system configuration */
64	uint8_t  	mpfb2;	/* flags */
65#define MPFPS_FLAG_IMCR		0x80	/* IMCR present */
66	uint8_t  	mpfb3;	/* unused */
67	uint8_t  	mpfb4;	/* unused */
68	uint8_t  	mpfb5;	/* unused */
69};
70
71/* MP Configuration Table Header */
72struct mpbios_cth {
73	uint32_t	signature;
74#define MP_CT_SIG		0x504d4350 	/* PCMP */
75
76	uint16_t 	base_len;
77	uint8_t  	spec_rev;
78	uint8_t  	checksum;
79	uint8_t  	oem_id[8];
80	uint8_t  	product_id[12];
81	uint32_t	oem_table_pointer;
82	uint16_t 	oem_table_size;
83	uint16_t 	entry_count;
84	uint32_t	apic_address;
85	uint16_t	ext_len;
86	uint8_t  	ext_cksum;
87	uint8_t  	reserved;
88};
89
90struct mpbios_proc {
91	uint8_t  type;
92	uint8_t  apic_id;
93	uint8_t  apic_version;
94	uint8_t  cpu_flags;
95#define PROCENTRY_FLAG_EN	0x01
96#define PROCENTRY_FLAG_BP	0x02
97	uint32_t  reserved1;
98	uint32_t  reserved2;
99};
100
101struct mpbios_bus {
102	uint8_t  type;
103	uint8_t  bus_id;
104	char    bus_type[6];
105};
106
107struct mpbios_ioapic {
108	uint8_t  type;
109	uint8_t  apic_id;
110	uint8_t  apic_version;
111	uint8_t  apic_flags;
112#define IOAPICENTRY_FLAG_EN	0x01
113	uint32_t   apic_address;
114};
115
116struct mpbios_int {
117	uint8_t  type;
118	uint8_t  int_type;
119	uint16_t int_flags;
120	uint8_t  src_bus_id;
121	uint8_t  src_bus_irq;
122	uint8_t  dst_apic_id;
123#define MPS_ALL_APICS	0xff
124	uint8_t  dst_apic_int;
125};
126
127
128#endif /* !_X86_MPBIOSREG_H_ */
129