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/* $OpenBSD: autoconf.h,v 1.13 2020/05/25 15:00:23 deraadt Exp $ */
/* $NetBSD: autoconf.h,v 1.19 2000/06/08 03:10:06 thorpej Exp $ */
/*
* Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
/*
* Machine-dependent structures of autoconfiguration
*/
struct mainbus_attach_args {
const char *ma_name; /* device name */
int ma_slot; /* CPU "slot" number; only meaningful
when attaching CPUs */
};
struct bootdev_data {
char *protocol;
int bus;
int slot;
int channel;
char *remote_address;
int unit;
int boot_dev_type;
char *ctrl_dev_type;
};
/*
* The boot program passes a pointer (in the boot environment virtual
* address address space; "BEVA") to a bootinfo to the kernel using
* the following convention:
*
* a0 contains first free page frame number
* a1 contains page number of current level 1 page table
* if a2 contains BOOTINFO_MAGIC and a4 is nonzero:
* a3 contains pointer (BEVA) to bootinfo
* a4 contains bootinfo version number
* if a2 contains BOOTINFO_MAGIC and a4 contains 0 (backward compat):
* a3 contains pointer (BEVA) to bootinfo version
* (u_long), then the bootinfo
*/
#define BOOTINFO_MAGIC 0xdeadbeeffeedface
struct bootinfo_v1 {
u_long ssym; /* 0: start of kernel sym table */
u_long esym; /* 8: end of kernel sym table */
char boot_flags[64]; /* 16: boot flags */
char booted_kernel[64]; /* 80: name of booted kernel */
void *hwrpb; /* 144: hwrpb pointer (BEVA) */
u_long hwrpbsize; /* 152: size of hwrpb data */
int (*cngetc)(void); /* 160: console getc pointer */
void (*cnputc)(int); /* 168: console putc pointer */
void (*cnpollc)(int); /* 176: console pollc pointer */
long howto; /* 184: boothowto flags */
u_long pad[8]; /* 192: rsvd for future use */
/* 256: total size */
};
/*
* Kernel-internal structure used to hold important bits of boot
* information. NOT to be used by boot blocks.
*
* Note that not all of the fields from the bootinfo struct(s)
* passed by the boot blocks aren't here (because they're not currently
* used by the kernel!). Fields here which aren't supplied by the
* bootinfo structure passed by the boot blocks are supposed to be
* filled in at startup with sane contents.
*/
struct bootinfo_kernel {
u_long ssym; /* start of syms */
u_long esym; /* end of syms */
u_long hwrpb_phys; /* hwrpb physical address */
u_long hwrpb_size; /* size of hwrpb data */
char boot_flags[64]; /* boot flags */
char booted_kernel[64]; /* name of booted kernel */
char booted_dev[64]; /* name of booted device */
};
/*
* Lookup table entry for Alpha system variations.
*/
struct alpha_variation_table {
u_int64_t avt_variation; /* variation, from HWRPB */
const char *avt_model; /* model string */
};
#ifdef _KERNEL
extern struct device *booted_device;
extern int booted_partition;
extern struct bootdev_data *bootdev_data;
extern struct bootinfo_kernel bootinfo;
const char *alpha_variation_name(u_int64_t,
const struct alpha_variation_table *);
const char *alpha_unknown_sysname(void);
#endif /* _KERNEL */
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