sys/arch/alpha/include/autoconf.h

   1 /* $NetBSD: autoconf.h,v 1.20.2.1 2004/11/02 07:50:21 skrll Exp $ */
   2
   3 /*
   4  * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
   5  * All rights reserved.
   6  *
   7  * Author: Chris G. Demetriou
   8  *
   9  * Permission to use, copy, modify and distribute this software and
  10  * its documentation is hereby granted, provided that both the copyright
  11  * notice and this permission notice appear in all copies of the
  12  * software, derivative works or modified versions, and any portions
  13  * thereof, and that both notices appear in supporting documentation.
  14  *
  15  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  16  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
  17  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  18  *
  19  * Carnegie Mellon requests users of this software to return to
  20  *
  21  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  22  *  School of Computer Science
  23  *  Carnegie Mellon University
  24  *  Pittsburgh PA 15213-3890
  25  *
  26  * any improvements or extensions that they make and grant Carnegie the
  27  * rights to redistribute these changes.
  28  */
  29
  30 /*
  31  * Machine-dependent structures for autoconfiguration
  32  */
  33
  34 struct mainbus_attach_args {
  35         const char *ma_name;            /* device name */
  36         int         ma_slot;            /* CPU "slot" number; only meaningful
  37                                            when attaching CPUs */
  38 };
  39
  40 struct bootdev_data {
  41         char    *protocol;
  42         int     bus;
  43         int     slot;
  44         int     channel;
  45         char    *remote_address;
  46         int     unit;
  47         int     boot_dev_type;
  48         char    *ctrl_dev_type;
  49 };
  50
  51 /*
  52  * The boot program passes a pointer (in the boot environment virtual
  53  * address address space; "BEVA") to a bootinfo to the kernel using
  54  * the following convention:
  55  *
  56  *      a0 contains first free page frame number
  57  *      a1 contains page number of current level 1 page table
  58  *      if a2 contains BOOTINFO_MAGIC and a4 is nonzero:
  59  *              a3 contains pointer (BEVA) to bootinfo
  60  *              a4 contains bootinfo version number
  61  *      if a2 contains BOOTINFO_MAGIC and a4 contains 0 (backward compat):
  62  *              a3 contains pointer (BEVA) to bootinfo version
  63  *                  (u_long), then the bootinfo
  64  */
  65
  66 #define BOOTINFO_MAGIC                  0xdeadbeeffeedface
  67
  68 struct bootinfo_v1 {
  69         u_long  ssym;                   /* 0: start of kernel sym table */
  70         u_long  esym;                   /* 8: end of kernel sym table   */
  71         char    boot_flags[64];         /* 16: boot flags               */
  72         char    booted_kernel[64];      /* 80: name of booted kernel    */
  73         void    *hwrpb;                 /* 144: hwrpb pointer (BEVA)    */
  74         u_long  hwrpbsize;              /* 152: size of hwrpb data      */
  75         int     (*cngetc)(void);        /* 160: console getc pointer    */
  76         void    (*cnputc)(int);         /* 168: console putc pointer    */
  77         void    (*cnpollc)(int);        /* 176: console pollc pointer   */
  78         u_long  pad[9];                 /* 184: rsvd for future use     */
  79                                         /* 256: total size              */
  80 };
  81
  82 /*
  83  * Kernel-internal structure used to hold important bits of boot
  84  * information.  NOT to be used by boot blocks.
  85  *
  86  * Note that not all of the fields from the bootinfo struct(s)
  87  * passed by the boot blocks aren't here (because they're not currently
  88  * used by the kernel!).  Fields here which aren't supplied by the
  89  * bootinfo structure passed by the boot blocks are supposed to be
  90  * filled in at startup with sane contents.
  91  */
  92 struct bootinfo_kernel {
  93         u_long  ssym;                   /* start of syms */
  94         u_long  esym;                   /* end of syms */
  95         u_long  hwrpb_phys;             /* hwrpb physical address */
  96         u_long  hwrpb_size;             /* size of hwrpb data */
  97         char    boot_flags[64];         /* boot flags */
  98         char    booted_kernel[64];      /* name of booted kernel */
  99         char    booted_dev[64];         /* name of booted device */
 100 };
 101
 102 /*
 103  * Lookup table entry for Alpha system variations.
 104  */
 105 struct alpha_variation_table {
 106         u_int64_t       avt_variation;  /* variation, from HWRPB */
 107         const char      *avt_model;     /* model string */
 108 };
 109
 110 #ifdef _KERNEL
 111 extern struct bootdev_data *bootdev_data;
 112 extern struct bootinfo_kernel bootinfo;
 113
 114 const char *alpha_variation_name(u_int64_t,
 115     const struct alpha_variation_table *);
 116 const char *alpha_unknown_sysname(void);
 117 #endif /* _KERNEL */