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      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_ */
    129