/*	$OpenBSD: ubareg.h,v 1.14 2011/07/06 18:32:59 miod Exp $ */
/*	$NetBSD: ubareg.h,v 1.11 2000/01/24 02:40:36 matt Exp $ */

/*-
 * Copyright (c) 1982, 1986 The Regents of the University of California.
 * All rights reserved.
 * (c) UNIX System Laboratories, Inc.
 * All or some portions of this file are derived from material licensed
 * to the University of California by American Telephone and Telegraph
 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
 * the permission of UNIX System Laboratories, Inc.
 *
 * 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.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
 *
 *	@(#)ubareg.h	7.8 (Berkeley) 5/9/91
 */

/*
 * VAX UNIBUS adapter registers
 */

/*
 * Size of unibus memory address space in pages
 * (also number of map registers).
 * QBAPAGES should be 8192, but we don't need nearly that much
 * address space, and the return from the allocation routine
 * can accommodate at most 2047 (ubavar.h: UBA_MAXMR);
 * QBAPAGES must be at least UBAPAGES.	Choose pragmatically.
 * 
 * Is there ever any need to have QBAPAGES != UBAPAGES???
 * Wont work now anyway, QBAPAGES _must_ be .eq. UBAPAGES.
 */
#define UBAPAGES	496
#define NUBMREG		496
#define	QBAPAGES	1024
#define UBAIOADDR	0760000		/* start of I/O page */
#define UBAIOPAGES	16

#if !defined(_LOCORE) && !defined(UBA_REGS_DEFINED)
/*
 * DW780/DW750 hardware registers
 */
struct uba_regs {
	int	uba_cnfgr;		/* configuration register */
	int	uba_cr;			/* control register */
	int	uba_sr;			/* status register */
	int	uba_dcr;		/* diagnostic control register */
	int	uba_fmer;		/* failed map entry register */
	int	uba_fubar;		/* failed UNIBUS address register */
	int	pad1[2];
	int	uba_brsvr[4];
	int	uba_brrvr[4];		/* receive vector registers */
	int	uba_dpr[16];		/* buffered data path register */
	int	pad2[480];
	pt_entry_t uba_map[UBAPAGES];	/* unibus map register */
	int	pad3[UBAIOPAGES];	/* no maps for device address space */
};
#endif

/* uba_mr[] */
#define UBAMR_MRV	0x80000000	/* map register valid */
#define UBAMR_BO	0x02000000	/* byte offset bit */
#define UBAMR_DPDB	0x01e00000	/* data path designator field */
#define UBAMR_SBIPFN	0x001fffff	/* SBI page address field */

#define UBAMR_DPSHIFT	21		/* shift to data path designator */

/*
 * Number of unibus buffered data paths and possible uba's per cpu type.
 */
#define NBDPBUA		5
#define MAXNBDP		15

/*
 * Symbolic BUS addresses for UBAs.
 */

#if VAX630 || VAX650 || VAX60
#define QBAMAP	0x20088000
#define QMEM	0x30000000
#define QIOPAGE	0x20000000
/*
 * Q-bus control registers
 */
#define QIPCR		0x1f40		/* from start of iopage */
/* bits in QIPCR */
#define Q_DBIRQ		0x0001		/* doorbell interrupt request */
#define Q_LMEAE		0x0020		/* local mem external access enable */
#define Q_DBIIE		0x0040		/* doorbell interrupt enable */
#define Q_AUXHLT	0x0100		/* auxiliary processor halt */
#define Q_DMAQPE	0x8000		/* Q22 bus address space parity error */
#endif

/*
 * Macro to offset a UNIBUS device address, often expressed as
 * something like 0172520, by forcing it into the last 8K
 * of UNIBUS memory space.
 */
#define ubdevreg(addr)	((addr) & 017777)