/*      $NetBSD: mpbiosreg.h,v 1.6 2010/04/18 23:47:51 jym Exp $ */

/*-
 * Copyright (c) 2000 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by RedBack Networks Inc.
 *
 * Author: Bill Sommerfeld
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _X86_MPBIOSREG_H_
#define _X86_MPBIOSREG_H_

#define BIOS_BASE               (0xf0000)
#define BIOS_SIZE               (0x10000)
#define BIOS_COUNT              (BIOS_SIZE)

/*
 * Multiprocessor config table entry types.
 */

#define MPS_MCT_CPU     0
#define MPS_MCT_BUS     1
#define MPS_MCT_IOAPIC  2
#define MPS_MCT_IOINT   3
#define MPS_MCT_LINT    4

#define MPS_MCT_NTYPES  5

/* MP Floating Pointer Structure */
struct mpbios_fps {
        uint32_t        signature;
/* string defined by the Intel MP Spec as identifying the MP table */
#define MP_FP_SIG               0x5f504d5f      /* _MP_ */
        
        uint32_t        pap;
        uint8_t         length;
        uint8_t         spec_rev;
        uint8_t         checksum;
        uint8_t         mpfb1;  /* system configuration */
        uint8_t         mpfb2;  /* flags */
#define MPFPS_FLAG_IMCR         0x80    /* IMCR present */
        uint8_t         mpfb3;  /* unused */
        uint8_t         mpfb4;  /* unused */
        uint8_t         mpfb5;  /* unused */
};

/* MP Configuration Table Header */
struct mpbios_cth {
        uint32_t        signature;
#define MP_CT_SIG               0x504d4350      /* PCMP */
        
        uint16_t        base_len;
        uint8_t         spec_rev;
        uint8_t         checksum;
        uint8_t         oem_id[8];
        uint8_t         product_id[12];
        uint32_t        oem_table_pointer;
        uint16_t        oem_table_size;
        uint16_t        entry_count;
        uint32_t        apic_address;
        uint16_t        ext_len;
        uint8_t         ext_cksum;
        uint8_t         reserved;
};

struct mpbios_proc {
        uint8_t  type;
        uint8_t  apic_id;
        uint8_t  apic_version;
        uint8_t  cpu_flags;
#define PROCENTRY_FLAG_EN       0x01
#define PROCENTRY_FLAG_BP       0x02
        uint32_t  reserved1;
        uint32_t  reserved2;
};

struct mpbios_bus {
        uint8_t  type;
        uint8_t  bus_id;
        char    bus_type[6];
};

struct mpbios_ioapic {
        uint8_t  type;
        uint8_t  apic_id;
        uint8_t  apic_version;
        uint8_t  apic_flags;
#define IOAPICENTRY_FLAG_EN     0x01
        uint32_t   apic_address;
};

struct mpbios_int {
        uint8_t  type;
        uint8_t  int_type;
        uint16_t int_flags;
        uint8_t  src_bus_id;
        uint8_t  src_bus_irq;
        uint8_t  dst_apic_id;
#define MPS_ALL_APICS   0xff
        uint8_t  dst_apic_int;
};


#endif /* !_X86_MPBIOSREG_H_ */