usr/src/sys/vax/stand/savax.h

/*
 * Copyright (c) 1982, 1986, 1988, Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 *
 *      @(#)savax.h     7.4 (Berkeley) %G%
 */

/*
 * Standalone definitions peculiar to vaxen:
 *
 * The mba devices in the standalone system are addressed as
 *      type(mba, 0, drive, partition)          (disks)
 *      type(mba, formatter, transport, file)   (tapes)
 *
 * The mbadrv macro gives the address of the device registers
 * for the specified unit.
 *
 * The uba devices in the standalone system are addressed as
 *      type(uba, ctlr, drive, partition)       (disks)
 *      type(uba, formatter, transport, file)   (tapes)
 *
 * The ubamem macro converts a specified unibus address (ala pdp-11)
 * into a unibus memory address space address.
 */

#define mbadrv(mba, unit)       (&mbamba(mba)->mba_drv[unit])
/* compute an I/O page physical address from a 16/18/22-bit bus address */
#define ubamem(uba, off)        (uioaddr[uba] + ubdevreg(off))

#define mbamba(mba)             (mbaddr[mba])
#define ubauba(uba)             (ubaddr[uba])

#define MAXNMBA 8
#define MAXNUBA 8
#define MAXNKDB 2

struct  mba_regs **mbaddr;
int     mbaact;

caddr_t *uioaddr;
struct  uba_regs **ubaddr;

#ifdef VAX8200
caddr_t kdbaddr[MAXNKDB];
int     nkdb;
#endif

int     cpu;                            /* see ../vax/cpu.h */