sys/arch/x86/include/mpbiosreg.h

   1 /*      $NetBSD: mpbiosreg.h,v 1.6 2010/04/18 23:47:51 jym 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  reserved1;
  98         uint32_t  reserved2;
  99 };
 100
 101 struct mpbios_bus {
 102         uint8_t  type;
 103         uint8_t  bus_id;
 104         char    bus_type[6];
 105 };
 106
 107 struct 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
 116 struct 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_ */