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Annotation of Net2/arch/vax/uba/ubareg.h, revision 1.1

1.1     ! root        1: /*-
        !             2:  * Copyright (c) 1982, 1986 The Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms, with or without
        !             6:  * modification, are permitted provided that the following conditions
        !             7:  * are met:
        !             8:  * 1. Redistributions of source code must retain the above copyright
        !             9:  *    notice, this list of conditions and the following disclaimer.
        !            10:  * 2. Redistributions in binary form must reproduce the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer in the
        !            12:  *    documentation and/or other materials provided with the distribution.
        !            13:  * 3. All advertising materials mentioning features or use of this software
        !            14:  *    must display the following acknowledgement:
        !            15:  *     This product includes software developed by the University of
        !            16:  *     California, Berkeley and its contributors.
        !            17:  * 4. Neither the name of the University nor the names of its contributors
        !            18:  *    may be used to endorse or promote products derived from this software
        !            19:  *    without specific prior written permission.
        !            20:  *
        !            21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            31:  * SUCH DAMAGE.
        !            32:  *
        !            33:  *     @(#)ubareg.h    7.8 (Berkeley) 5/9/91
        !            34:  */
        !            35: 
        !            36: /*
        !            37:  * VAX UNIBUS adapter registers
        !            38:  */
        !            39: 
        !            40: /*
        !            41:  * "UNIBUS" adaptor types.
        !            42:  * This code is used for both UNIBUSes and Q-buses
        !            43:  * with different types of adaptors.
        !            44:  * Definition of a type includes support code for that type.
        !            45:  */
        !            46: #if VAX780 || VAX8600
        !            47: #define        DW780   1               /* has adaptor regs, sr: 780/785/8600 */
        !            48: #endif
        !            49: 
        !            50: #if VAX750
        !            51: #define        DW750   2               /* has adaptor regs, no sr: 750, 730 */
        !            52: #endif
        !            53: 
        !            54: #if VAX730
        !            55: #define        DW730   3               /* has adaptor regs, no sr: 750, 730 */
        !            56: #endif
        !            57: 
        !            58: #if VAX630 || VAX650
        !            59: #define        QBA     4               /* 22-bit Q-bus, no adaptor regs: uVAX II */
        !            60: #endif
        !            61: 
        !            62: #if VAX8200 || VAX8500 || VAX8800
        !            63: #define        DWBUA   5               /* BI UNIBUS adaptor: 8200/8500/8800 */
        !            64: #endif
        !            65: 
        !            66: /*
        !            67:  * Size of unibus memory address space in pages
        !            68:  * (also number of map registers).
        !            69:  * QBAPAGES should be 8192, but we don't need nearly that much
        !            70:  * address space, and the return from the allocation routine
        !            71:  * can accommodate at most 2047 (ubavar.h: UBA_MAXMR);
        !            72:  * QBAPAGES must be at least UBAPAGES.  Choose pragmatically.
        !            73:  */
        !            74: #define        UBAPAGES        496
        !            75: #define        NUBMREG         496
        !            76: #if defined(GATEWAY) && !defined(QNIVERT)
        !            77: #define        QBAPAGES        1024
        !            78: #else
        !            79: #define        QBAPAGES        UBAPAGES
        !            80: #endif
        !            81: #define        UBAIOADDR       0760000         /* start of I/O page */
        !            82: #define        UBAIOPAGES      16
        !            83: 
        !            84: #ifndef LOCORE
        !            85: /*
        !            86:  * DWBUA hardware registers.
        !            87:  */
        !            88: struct dwbua_regs {
        !            89:        int     pad1[456];              /* actually bii regs + pad */
        !            90:        int     bua_csr;                /* control and status register */
        !            91:        int     bua_offset;             /* vector offset register */
        !            92:        int     bua_fubar;              /* failed UNIBUS address register */
        !            93:        int     bua_bifar;              /* BI failed address register */
        !            94:        int     bua_udiag[5];           /* micro diagnostics (R/O) */
        !            95:        int     pad2[3];
        !            96: /* dpr[0] is for DDP; dpr's 1 through 5 are for BPD's 1 through 5 */
        !            97:        int     bua_dpr[6];             /* data path registers */
        !            98:        int     pad3[10];
        !            99:        int     bua_bdps[20];           /* buffered data path space *//*???*/
        !           100:        int     pad4[8];
        !           101:        struct  pte bua_map[UBAPAGES];  /* unibus map registers */
        !           102:        int     pad5[UBAIOPAGES];       /* no maps for device address space */
        !           103: };
        !           104: 
        !           105: #ifdef DWBUA
        !           106: /* bua_csr */
        !           107: #define        BUACSR_ERR      0x80000000      /* composite error */
        !           108: #define        BUACSR_BIF      0x10000000      /* BI failure */
        !           109: #define        BUACSR_SSYNTO   0x08000000      /* slave sync timeout */
        !           110: #define        BUACSR_UIE      0x04000000      /* unibus interlock error */
        !           111: #define        BUACSR_IVMR     0x02000000      /* invalid map register */
        !           112: #define        BUACSR_BADBDP   0x01000000      /* bad BDP select */
        !           113: #define        BUACSR_BUAEIE   0x00100000      /* bua error interrupt enable (?) */
        !           114: #define        BUACSR_UPI      0x00020000      /* unibus power init */
        !           115: #define        BUACSR_UREGDUMP 0x00010000      /* microdiag register dump */
        !           116: #define        BUACSR_IERRNO   0x000000ff      /* mask for internal errror number */
        !           117: 
        !           118: /* bua_offset */
        !           119: #define        BUAOFFSET_MASK  0x00003e00      /* hence max offset = 15872 */
        !           120: 
        !           121: /* bua_dpr */
        !           122: #define        BUADPR_DPSEL    0x00e00000      /* data path select (?) */
        !           123: #define        BUADPR_PURGE    0x00000001      /* purge bdp */
        !           124: 
        !           125: /* bua_map -- in particular, those bits that are not in DW780s & DW750s */
        !           126: #define        BUAMR_IOADR     0x40000000      /* I/O address space */
        !           127: #define        BUAMR_LAE       0x04000000      /* longword access enable */
        !           128:        /* I see no reason to use either one, though ... act 6 Aug 1987 */
        !           129: 
        !           130: #define        UBA_PURGEBUA(uba, bdp) \
        !           131:        (((struct dwbua_regs *)(uba))->bua_dpr[bdp] |= BUADPR_PURGE)
        !           132: #else
        !           133: #define        UBA_PURGEBUA(uba, bdp)
        !           134: #endif
        !           135: 
        !           136: /*
        !           137:  * DW780/DW750 hardware registers
        !           138:  */
        !           139: struct uba_regs {
        !           140:        int     uba_cnfgr;              /* configuration register */
        !           141:        int     uba_cr;                 /* control register */
        !           142:        int     uba_sr;                 /* status register */
        !           143:        int     uba_dcr;                /* diagnostic control register */
        !           144:        int     uba_fmer;               /* failed map entry register */
        !           145:        int     uba_fubar;              /* failed UNIBUS address register */
        !           146:        int     pad1[2];
        !           147:        int     uba_brsvr[4];
        !           148:        int     uba_brrvr[4];           /* receive vector registers */
        !           149:        int     uba_dpr[16];            /* buffered data path register */
        !           150:        int     pad2[480];
        !           151:        struct  pte uba_map[UBAPAGES];  /* unibus map register */
        !           152:        int     pad3[UBAIOPAGES];       /* no maps for device address space */
        !           153: };
        !           154: #endif
        !           155: 
        !           156: #ifdef DW780
        !           157: /* uba_cnfgr */
        !           158: #define        UBACNFGR_UBINIT 0x00040000      /* unibus init asserted */
        !           159: #define        UBACNFGR_UBPDN  0x00020000      /* unibus power down */
        !           160: #define        UBACNFGR_UBIC   0x00010000      /* unibus init complete */
        !           161: 
        !           162: #define UBACNFGR_BITS \
        !           163: "\40\40PARFLT\37WSQFLT\36URDFLT\35ISQFLT\34MXTFLT\33XMTFLT\30ADPDN\27ADPUP\23UBINIT\22UBPDN\21UBIC"
        !           164: 
        !           165: /* uba_cr */
        !           166: #define        UBACR_MRD16     0x40000000      /* map reg disable bit 4 */
        !           167: #define        UBACR_MRD8      0x20000000      /* map reg disable bit 3 */
        !           168: #define        UBACR_MRD4      0x10000000      /* map reg disable bit 2 */
        !           169: #define        UBACR_MRD2      0x08000000      /* map reg disable bit 1 */
        !           170: #define        UBACR_MRD1      0x04000000      /* map reg disable bit 0 */
        !           171: #define        UBACR_IFS       0x00000040      /* interrupt field switch */
        !           172: #define        UBACR_BRIE      0x00000020      /* BR interrupt enable */
        !           173: #define        UBACR_USEFIE    0x00000010      /* UNIBUS to SBI error field IE */
        !           174: #define        UBACR_SUEFIE    0x00000008      /* SBI to UNIBUS error field IE */
        !           175: #define        UBACR_CNFIE     0x00000004      /* configuration IE */
        !           176: #define        UBACR_UPF       0x00000002      /* UNIBUS power fail */
        !           177: #define        UBACR_ADINIT    0x00000001      /* adapter init */
        !           178: 
        !           179: /* uba_sr */
        !           180: #define        UBASR_BR7FULL   0x08000000      /* BR7 receive vector reg full */
        !           181: #define        UBASR_BR6FULL   0x04000000      /* BR6 receive vector reg full */
        !           182: #define        UBASR_BR5FULL   0x02000000      /* BR5 receive vector reg full */
        !           183: #define        UBASR_BR4FULL   0x01000000      /* BR4 receive vector reg full */
        !           184: #define        UBASR_RDTO      0x00000400      /* UNIBUS to SBI read data timeout */
        !           185: #define        UBASR_RDS       0x00000200      /* read data substitute */
        !           186: #define        UBASR_CRD       0x00000100      /* corrected read data */
        !           187: #define        UBASR_CXTER     0x00000080      /* command transmit error */
        !           188: #define        UBASR_CXTMO     0x00000040      /* command transmit timeout */
        !           189: #define        UBASR_DPPE      0x00000020      /* data path parity error */
        !           190: #define        UBASR_IVMR      0x00000010      /* invalid map register */
        !           191: #define        UBASR_MRPF      0x00000008      /* map register parity failure */
        !           192: #define        UBASR_LEB       0x00000004      /* lost error */
        !           193: #define        UBASR_UBSTO     0x00000002      /* UNIBUS select timeout */
        !           194: #define        UBASR_UBSSYNTO  0x00000001      /* UNIBUS slave sync timeout */
        !           195: 
        !           196: #define        UBASR_BITS \
        !           197: "\20\13RDTO\12RDS\11CRD\10CXTER\7CXTMO\6DPPE\5IVMR\4MRPF\3LEB\2UBSTO\1UBSSYNTO"
        !           198: 
        !           199: /* uba_brrvr[] */
        !           200: #define        UBABRRVR_AIRI   0x80000000      /* adapter interrupt request */
        !           201: #define        UBABRRVR_DIV    0x0000ffff      /* device interrupt vector field */
        !           202: #endif
        !           203:  
        !           204: /* uba_dpr */
        !           205: #ifdef DW780
        !           206: #define        UBADPR_BNE      0x80000000      /* buffer not empty - purge */
        !           207: #define        UBADPR_BTE      0x40000000      /* buffer transfer error */
        !           208: #define        UBADPR_DPF      0x20000000      /* DP function (RO) */
        !           209: #define        UBADPR_BS       0x007f0000      /* buffer state field */
        !           210: #define        UBADPR_BUBA     0x0000ffff      /* buffered UNIBUS address */
        !           211: #define        UBA_PURGE780(uba, bdp) \
        !           212:     ((uba)->uba_dpr[bdp] |= UBADPR_BNE)
        !           213: #else
        !           214: #define UBA_PURGE780(uba, bdp)
        !           215: #endif
        !           216: #ifdef DW750
        !           217: #define        UBADPR_ERROR    0x80000000      /* error occurred */
        !           218: #define        UBADPR_NXM      0x40000000      /* nxm from memory */
        !           219: #define        UBADPR_UCE      0x20000000      /* uncorrectable error */
        !           220: #define        UBADPR_PURGE    0x00000001      /* purge bdp */
        !           221: /* the DELAY is for a hardware problem */
        !           222: #define        UBA_PURGE750(uba, bdp) { \
        !           223:     ((uba)->uba_dpr[bdp] |= (UBADPR_PURGE|UBADPR_NXM|UBADPR_UCE)); \
        !           224:     DELAY(8); \
        !           225: }
        !           226: #else
        !           227: #define UBA_PURGE750(uba, bdp)
        !           228: #endif
        !           229: 
        !           230: /*
        !           231:  * Macros for fast buffered data path purging in time-critical routines.
        !           232:  *
        !           233:  * Too bad C pre-processor doesn't have the power of LISP in macro
        !           234:  * expansion...
        !           235:  */
        !           236: 
        !           237: /* THIS IS WRONG, should use pointer to uba_hd */
        !           238: #if DWBUA || DW780 || DW750
        !           239: #define        UBAPURGE(uba, bdp) { \
        !           240:        switch (cpu) { \
        !           241:        case VAX_8200: UBA_PURGEBUA(uba, bdp); break; \
        !           242:        case VAX_8600: case VAX_780: UBA_PURGE780((uba), (bdp)); break; \
        !           243:        case VAX_750: UBA_PURGE750((uba), (bdp)); break; \
        !           244:        } \
        !           245: }
        !           246: #else
        !           247: #define        UBAPURGE(uba, bdp)
        !           248: #endif
        !           249: 
        !           250: 
        !           251: 
        !           252: /* uba_mr[] */
        !           253: #define        UBAMR_MRV       0x80000000      /* map register valid */
        !           254: #define        UBAMR_BO        0x02000000      /* byte offset bit */
        !           255: #define        UBAMR_DPDB      0x01e00000      /* data path designator field */
        !           256: #define        UBAMR_SBIPFN    0x001fffff      /* SBI page address field */
        !           257: 
        !           258: #define        UBAMR_DPSHIFT   21              /* shift to data path designator */
        !           259: 
        !           260: /*
        !           261:  * Number of unibus buffered data paths and possible uba's per cpu type.
        !           262:  */
        !           263: #define        NBDP8600        15
        !           264: #define        NBDP780         15
        !           265: #define        NBDPBUA         5
        !           266: #define        NBDP750         3
        !           267: #define        NBDP730         0
        !           268: #define        MAXNBDP         15
        !           269: 
        !           270: /*
        !           271:  * Symbolic BUS addresses for UBAs.
        !           272:  */
        !           273: 
        !           274: #if VAX630 || VAX650
        !           275: #define        QBAMAP630       ((struct pte *)0x20088000)
        !           276: #define        QMEM630         0x30000000
        !           277: #define        QIOPAGE630      0x20000000
        !           278: /*
        !           279:  * Q-bus control registers
        !           280:  */
        !           281: #define        QIPCR           0x1f40          /* from start of iopage */
        !           282: /* bits in QIPCR */
        !           283: #define        Q_DBIRQ         0x0001          /* doorbell interrupt request */
        !           284: #define        Q_LMEAE         0x0020          /* local mem external access enable */
        !           285: #define        Q_DBIIE         0x0040          /* doorbell interrupt enable */
        !           286: #define        Q_AUXHLT        0x0100          /* auxiliary processor halt */
        !           287: #define        Q_DMAQPE        0x8000          /* Q22 bus address space parity error */
        !           288: #endif
        !           289: 
        !           290: #if VAX730
        !           291: #define        UMEM730         0xfc0000
        !           292: #endif
        !           293: 
        !           294: #if VAX750
        !           295: #define        UMEM750(i)      (0xfc0000-(i)*0x40000)
        !           296: #endif
        !           297: 
        !           298: #if VAX780
        !           299: #define        UMEM780(i)      (0x20100000+(i)*0x40000)
        !           300: #endif
        !           301: 
        !           302: #if VAX8200            /* BEWARE, argument is node, not ubanum */
        !           303: #define        UMEM8200(i)     (0x20400000+(i)*0x40000)
        !           304: #endif
        !           305: 
        !           306: #if VAX8600
        !           307: #define        UMEMA8600(i)    (0x20100000+(i)*0x40000)
        !           308: #define        UMEMB8600(i)    (0x22100000+(i)*0x40000)
        !           309: #endif
        !           310: 
        !           311: /*
        !           312:  * Macro to offset a UNIBUS device address, often expressed as
        !           313:  * something like 0172520, by forcing it into the last 8K
        !           314:  * of UNIBUS memory space.
        !           315:  */
        !           316: #define        ubdevreg(addr)  ((addr) & 017777)

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