1 /* ubareg.h 4.28 82/04/11 */ 2 3 /* 4 * VAX UNIBUS adapter registers 5 */ 6 #ifndef LOCORE 7 /* 8 * UBA hardware registers 9 */ 10 struct uba_regs 11 { 12 int uba_cnfgr; /* configuration register */ 13 int uba_cr; /* control register */ 14 int uba_sr; /* status register */ 15 int uba_dcr; /* diagnostic control register */ 16 int uba_fmer; /* failed map entry register */ 17 int uba_fubar; /* failed UNIBUS address register */ 18 int pad1[2]; 19 int uba_brsvr[4]; 20 int uba_brrvr[4]; /* receive vector registers */ 21 int uba_dpr[16]; /* buffered data path register */ 22 int pad2[480]; 23 struct pte uba_map[496]; /* unibus map register */ 24 int pad3[16]; /* no maps for device address space */ 25 }; 26 #endif 27 28 #if VAX780 29 /* uba_cnfgr */ 30 #define UBACNFGR_UBINIT 0x00040000 /* unibus init asserted */ 31 #define UBACNFGR_UBPDN 0x00020000 /* unibus power down */ 32 #define UBACNFGR_UBIC 0x00010000 /* unibus init complete */ 33 34 /* uba_cr */ 35 #define UBACR_MRD16 0x40000000 /* map reg disable bit 4 */ 36 #define UBACR_MRD8 0x20000000 /* map reg disable bit 3 */ 37 #define UBACR_MRD4 0x10000000 /* map reg disable bit 2 */ 38 #define UBACR_MRD2 0x08000000 /* map reg disable bit 1 */ 39 #define UBACR_MRD1 0x04000000 /* map reg disable bit 0 */ 40 #define UBACR_IFS 0x00000040 /* interrupt field switch */ 41 #define UBACR_BRIE 0x00000020 /* BR interrupt enable */ 42 #define UBACR_USEFIE 0x00000010 /* UNIBUS to SBI error field IE */ 43 #define UBACR_SUEFIE 0x00000008 /* SBI to UNIBUS error field IE */ 44 #define UBACR_CNFIE 0x00000004 /* configuration IE */ 45 #define UBACR_UPF 0x00000002 /* UNIBUS power fail */ 46 #define UBACR_ADINIT 0x00000001 /* adapter init */ 47 48 /* uba_sr */ 49 #define UBASR_BR7FULL 0x08000000 /* BR7 receive vector reg full */ 50 #define UBASR_BR6FULL 0x04000000 /* BR6 receive vector reg full */ 51 #define UBASR_BR5FULL 0x02000000 /* BR5 receive vector reg full */ 52 #define UBASR_BR4FULL 0x01000000 /* BR4 receive vector reg full */ 53 #define UBASR_RDTO 0x00000400 /* UNIBUS to SBI read data timeout */ 54 #define UBASR_RDS 0x00000200 /* read data substitute */ 55 #define UBASR_CRD 0x00000100 /* corrected read data */ 56 #define UBASR_CXTER 0x00000080 /* command transmit error */ 57 #define UBASR_CXTMO 0x00000040 /* command transmit timeout */ 58 #define UBASR_DPPE 0x00000020 /* data path parity error */ 59 #define UBASR_IVMR 0x00000010 /* invalid map register */ 60 #define UBASR_MRPF 0x00000008 /* map register parity failure */ 61 #define UBASR_LEB 0x00000004 /* lost error */ 62 #define UBASR_UBSTO 0x00000002 /* UNIBUS select timeout */ 63 #define UBASR_UBSSYNTO 0x00000001 /* UNIBUS slave sync timeout */ 64 65 #define UBASR_BITS \ 66 "\20\13RDTO\12RDS\11CRD\10CXTER\7CXTMO\6DPPE\5IVMR\4MRPF\3LEB\2UBSTO\1UBSSYNTO" 67 68 /* uba_brrvr[] */ 69 #define UBABRRVR_AIRI 0x80000000 /* adapter interrupt request */ 70 #define UBABRRVR_DIV 0x0000ffff /* device interrupt vector field */ 71 #endif VAX780 72 73 /* uba_dpr */ 74 #if VAX780 75 #define UBADPR_BNE 0x80000000 /* buffer not empty - purge */ 76 #define UBADPR_BTE 0x40000000 /* buffer transfer error */ 77 #define UBADPR_DPF 0x20000000 /* DP function (RO) */ 78 #define UBADPR_BS 0x007f0000 /* buffer state field */ 79 #define UBADPR_BUBA 0x0000ffff /* buffered UNIBUS address */ 80 #define UBA_PURGE780(uba, bdp) \ 81 ((uba)->uba_dpr[bdp] |= UBADPR_BNE) 82 #endif VAX780 83 #if VAX750 84 #define UBADPR_ERROR 0x80000000 /* error occurred */ 85 #define UBADPR_NXM 0x40000000 /* nxm from memory */ 86 #define UBADPR_UCE 0x20000000 /* uncorrectable error */ 87 #define UBADPR_PURGE 0x00000001 /* purge bdp */ 88 #define UBA_PURGE750(uba, bdp) \ 89 ((uba)->uba_dpr[bdp] |= (UBADPR_PURGE|UBADPR_NXM|UBADPR_UCE)) 90 #endif VAX750 91 92 /* 93 * Macros for fast buffered data path purging in time-critical routines. 94 * 95 * Too bad C pre-processor doesn't have the power of LISP in macro 96 * expansion... 97 */ 98 #if defined(VAX780) && defined(VAX750) 99 #define UBAPURGE(uba, bdp) { \ 100 switch (cpu) { \ 101 case VAX_780: UBA_PURGE780((uba), (bdp)); break; \ 102 case VAX_750: UBA_PURGE750((uba), (bdp)); break; \ 103 } \ 104 } 105 #endif 106 #if defined(VAX780) && !defined(VAX750) 107 #define UBAPURGE(uba, bdp) { \ 108 if (cpu==VAX_780) { \ 109 UBA_PURGE780((uba), (bdp)); \ 110 } \ 111 } 112 #endif 113 #if !defined(VAX780) && defined(VAX750) 114 #define UBAPURGE(uba, bdp) { \ 115 if (cpu==VAX_750) { \ 116 UBA_PURGE750((uba), (bdp)); break; \ 117 } \ 118 } 119 #endif 120 #if !defined(VAX780) && !defined(VAX750) 121 #define IF_UBAPURGE(uba, bdp) 122 #endif 123 124 /* uba_mr[] */ 125 #define UBAMR_MRV 0x80000000 /* map register valid */ 126 #define UBAMR_BO 0x02000000 /* byte offset bit */ 127 #define UBAMR_DPDB 0x01e00000 /* data path designator field */ 128 #define UBAMR_SBIPFN 0x000fffff /* SBI page address field */ 129 130 #define UBAMR_DPSHIFT 21 /* shift to data path designator */ 131 132 /* 133 * Number of UNIBUS map registers. We can't use the last 8k of UNIBUS 134 * address space for i/o transfers since it is used by the devices, 135 * hence have slightly less than 256K of UNIBUS address space. 136 */ 137 #define NUBMREG 496 138 139 /* 140 * Number of unibus buffered data paths and possible uba's per cpu type. 141 */ 142 #define NBDP780 15 143 #define NBDP750 3 144 #define NBDP7ZZ 0 145 #define MAXNBDP 15 146 147 #define NUBA780 4 148 #define NUBA750 1 149 #define NUBA7ZZ 1 150 #if VAX780 151 #define MAXNUBA 4 152 #else 153 #define MAXNUBA 1 154 #endif 155 156 /* 157 * Formulas for locations of the last 8k of UNIBUS memory 158 * for each possible uba. 159 */ 160 #if VAX7ZZ 161 #define UMEM7ZZ ((u_short *)(0xfc0000)) 162 #endif 163 #if VAX750 164 #define UMEM750(i) ((u_short *)(0xfc0000-(i)*0x40000)) 165 #endif 166 #if VAX780 167 #define UMEM780(i) ((u_short *)(0x20100000+(i)*0x40000)) 168 #endif 169