1 /* $NetBSD: autoconf.h,v 1.22 2005/12/11 12:16:16 christos 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 */ 118