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BSD 4_3_Net_2 release
[unix-history] / usr / src / sys / vax / uba / ubareg.h
/*-
* Copyright (c) 1982, 1986 The Regents of the University of California.
* All rights reserved.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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
*/
/*
* "UNIBUS" adaptor types.
* This code is used for both UNIBUSes and Q-buses
* with different types of adaptors.
* Definition of a type includes support code for that type.
*/
#if VAX780 || VAX8600
#define DW780 1 /* has adaptor regs, sr: 780/785/8600 */
#endif
#if VAX750
#define DW750 2 /* has adaptor regs, no sr: 750, 730 */
#endif
#if VAX730
#define DW730 3 /* has adaptor regs, no sr: 750, 730 */
#endif
#if VAX630 || VAX650
#define QBA 4 /* 22-bit Q-bus, no adaptor regs: uVAX II */
#endif
#if VAX8200 || VAX8500 || VAX8800
#define DWBUA 5 /* BI UNIBUS adaptor: 8200/8500/8800 */
#endif
/*
* 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.
*/
#define UBAPAGES 496
#define NUBMREG 496
#if defined(GATEWAY) && !defined(QNIVERT)
#define QBAPAGES 1024
#else
#define QBAPAGES UBAPAGES
#endif
#define UBAIOADDR 0760000 /* start of I/O page */
#define UBAIOPAGES 16
#ifndef LOCORE
/*
* DWBUA hardware registers.
*/
struct dwbua_regs {
int pad1[456]; /* actually bii regs + pad */
int bua_csr; /* control and status register */
int bua_offset; /* vector offset register */
int bua_fubar; /* failed UNIBUS address register */
int bua_bifar; /* BI failed address register */
int bua_udiag[5]; /* micro diagnostics (R/O) */
int pad2[3];
/* dpr[0] is for DDP; dpr's 1 through 5 are for BPD's 1 through 5 */
int bua_dpr[6]; /* data path registers */
int pad3[10];
int bua_bdps[20]; /* buffered data path space *//*???*/
int pad4[8];
struct pte bua_map[UBAPAGES]; /* unibus map registers */
int pad5[UBAIOPAGES]; /* no maps for device address space */
};
#ifdef DWBUA
/* bua_csr */
#define BUACSR_ERR 0x80000000 /* composite error */
#define BUACSR_BIF 0x10000000 /* BI failure */
#define BUACSR_SSYNTO 0x08000000 /* slave sync timeout */
#define BUACSR_UIE 0x04000000 /* unibus interlock error */
#define BUACSR_IVMR 0x02000000 /* invalid map register */
#define BUACSR_BADBDP 0x01000000 /* bad BDP select */
#define BUACSR_BUAEIE 0x00100000 /* bua error interrupt enable (?) */
#define BUACSR_UPI 0x00020000 /* unibus power init */
#define BUACSR_UREGDUMP 0x00010000 /* microdiag register dump */
#define BUACSR_IERRNO 0x000000ff /* mask for internal errror number */
/* bua_offset */
#define BUAOFFSET_MASK 0x00003e00 /* hence max offset = 15872 */
/* bua_dpr */
#define BUADPR_DPSEL 0x00e00000 /* data path select (?) */
#define BUADPR_PURGE 0x00000001 /* purge bdp */
/* bua_map -- in particular, those bits that are not in DW780s & DW750s */
#define BUAMR_IOADR 0x40000000 /* I/O address space */
#define BUAMR_LAE 0x04000000 /* longword access enable */
/* I see no reason to use either one, though ... act 6 Aug 1987 */
#define UBA_PURGEBUA(uba, bdp) \
(((struct dwbua_regs *)(uba))->bua_dpr[bdp] |= BUADPR_PURGE)
#else
#define UBA_PURGEBUA(uba, bdp)
#endif
/*
* 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];
struct pte uba_map[UBAPAGES]; /* unibus map register */
int pad3[UBAIOPAGES]; /* no maps for device address space */
};
#endif
#ifdef DW780
/* uba_cnfgr */
#define UBACNFGR_UBINIT 0x00040000 /* unibus init asserted */
#define UBACNFGR_UBPDN 0x00020000 /* unibus power down */
#define UBACNFGR_UBIC 0x00010000 /* unibus init complete */
#define UBACNFGR_BITS \
"\40\40PARFLT\37WSQFLT\36URDFLT\35ISQFLT\34MXTFLT\33XMTFLT\30ADPDN\27ADPUP\23UBINIT\22UBPDN\21UBIC"
/* uba_cr */
#define UBACR_MRD16 0x40000000 /* map reg disable bit 4 */
#define UBACR_MRD8 0x20000000 /* map reg disable bit 3 */
#define UBACR_MRD4 0x10000000 /* map reg disable bit 2 */
#define UBACR_MRD2 0x08000000 /* map reg disable bit 1 */
#define UBACR_MRD1 0x04000000 /* map reg disable bit 0 */
#define UBACR_IFS 0x00000040 /* interrupt field switch */
#define UBACR_BRIE 0x00000020 /* BR interrupt enable */
#define UBACR_USEFIE 0x00000010 /* UNIBUS to SBI error field IE */
#define UBACR_SUEFIE 0x00000008 /* SBI to UNIBUS error field IE */
#define UBACR_CNFIE 0x00000004 /* configuration IE */
#define UBACR_UPF 0x00000002 /* UNIBUS power fail */
#define UBACR_ADINIT 0x00000001 /* adapter init */
/* uba_sr */
#define UBASR_BR7FULL 0x08000000 /* BR7 receive vector reg full */
#define UBASR_BR6FULL 0x04000000 /* BR6 receive vector reg full */
#define UBASR_BR5FULL 0x02000000 /* BR5 receive vector reg full */
#define UBASR_BR4FULL 0x01000000 /* BR4 receive vector reg full */
#define UBASR_RDTO 0x00000400 /* UNIBUS to SBI read data timeout */
#define UBASR_RDS 0x00000200 /* read data substitute */
#define UBASR_CRD 0x00000100 /* corrected read data */
#define UBASR_CXTER 0x00000080 /* command transmit error */
#define UBASR_CXTMO 0x00000040 /* command transmit timeout */
#define UBASR_DPPE 0x00000020 /* data path parity error */
#define UBASR_IVMR 0x00000010 /* invalid map register */
#define UBASR_MRPF 0x00000008 /* map register parity failure */
#define UBASR_LEB 0x00000004 /* lost error */
#define UBASR_UBSTO 0x00000002 /* UNIBUS select timeout */
#define UBASR_UBSSYNTO 0x00000001 /* UNIBUS slave sync timeout */
#define UBASR_BITS \
"\20\13RDTO\12RDS\11CRD\10CXTER\7CXTMO\6DPPE\5IVMR\4MRPF\3LEB\2UBSTO\1UBSSYNTO"
/* uba_brrvr[] */
#define UBABRRVR_AIRI 0x80000000 /* adapter interrupt request */
#define UBABRRVR_DIV 0x0000ffff /* device interrupt vector field */
#endif
/* uba_dpr */
#ifdef DW780
#define UBADPR_BNE 0x80000000 /* buffer not empty - purge */
#define UBADPR_BTE 0x40000000 /* buffer transfer error */
#define UBADPR_DPF 0x20000000 /* DP function (RO) */
#define UBADPR_BS 0x007f0000 /* buffer state field */
#define UBADPR_BUBA 0x0000ffff /* buffered UNIBUS address */
#define UBA_PURGE780(uba, bdp) \
((uba)->uba_dpr[bdp] |= UBADPR_BNE)
#else
#define UBA_PURGE780(uba, bdp)
#endif
#ifdef DW750
#define UBADPR_ERROR 0x80000000 /* error occurred */
#define UBADPR_NXM 0x40000000 /* nxm from memory */
#define UBADPR_UCE 0x20000000 /* uncorrectable error */
#define UBADPR_PURGE 0x00000001 /* purge bdp */
/* the DELAY is for a hardware problem */
#define UBA_PURGE750(uba, bdp) { \
((uba)->uba_dpr[bdp] |= (UBADPR_PURGE|UBADPR_NXM|UBADPR_UCE)); \
DELAY(8); \
}
#else
#define UBA_PURGE750(uba, bdp)
#endif
/*
* Macros for fast buffered data path purging in time-critical routines.
*
* Too bad C pre-processor doesn't have the power of LISP in macro
* expansion...
*/
/* THIS IS WRONG, should use pointer to uba_hd */
#if DWBUA || DW780 || DW750
#define UBAPURGE(uba, bdp) { \
switch (cpu) { \
case VAX_8200: UBA_PURGEBUA(uba, bdp); break; \
case VAX_8600: case VAX_780: UBA_PURGE780((uba), (bdp)); break; \
case VAX_750: UBA_PURGE750((uba), (bdp)); break; \
} \
}
#else
#define UBAPURGE(uba, bdp)
#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 NBDP8600 15
#define NBDP780 15
#define NBDPBUA 5
#define NBDP750 3
#define NBDP730 0
#define MAXNBDP 15
/*
* Symbolic BUS addresses for UBAs.
*/
#if VAX630 || VAX650
#define QBAMAP630 ((struct pte *)0x20088000)
#define QMEM630 0x30000000
#define QIOPAGE630 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
#if VAX730
#define UMEM730 0xfc0000
#endif
#if VAX750
#define UMEM750(i) (0xfc0000-(i)*0x40000)
#endif
#if VAX780
#define UMEM780(i) (0x20100000+(i)*0x40000)
#endif
#if VAX8200 /* BEWARE, argument is node, not ubanum */
#define UMEM8200(i) (0x20400000+(i)*0x40000)
#endif
#if VAX8600
#define UMEMA8600(i) (0x20100000+(i)*0x40000)
#define UMEMB8600(i) (0x22100000+(i)*0x40000)
#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)
Continuous source code history from original PDP-7 UNIX to FreeBSD 2, the first fully unencumbered FreeBSD release.