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 */ 54 struct 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 */ 72 struct 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 90 struct 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 cpu_signature; 98 uint32_t feature_flags; 99 uint32_t reserved1; 100 uint32_t reserved2; 101 }; 102 103 struct mpbios_bus { 104 uint8_t type; 105 uint8_t bus_id; 106 char bus_type[6]; 107 }; 108 109 struct mpbios_ioapic { 110 uint8_t type; 111 uint8_t apic_id; 112 uint8_t apic_version; 113 uint8_t apic_flags; 114 #define IOAPICENTRY_FLAG_EN 0x01 115 uint32_t apic_address; 116 }; 117 118 struct mpbios_int { 119 uint8_t type; 120 uint8_t int_type; 121 uint16_t int_flags; 122 uint8_t src_bus_id; 123 uint8_t src_bus_irq; 124 uint8_t dst_apic_id; 125 #define MPS_ALL_APICS 0xff 126 uint8_t dst_apic_int; 127 }; 128 129 130 #endif /* !_X86_MPBIOSREG_H_ */ 131