allow qbus address space to be enlarged
[unix-history] / usr / src / sys / vax / uba / ubareg.h
CommitLineData
da7c5cc6 1/*
0880b18e 2 * Copyright (c) 1982, 1986 Regents of the University of California.
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3 * All rights reserved. The Berkeley software License Agreement
4 * specifies the terms and conditions for redistribution.
5 *
f6322301 6 * @(#)ubareg.h 7.5 (Berkeley) %G%
da7c5cc6 7 */
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8
9/*
b0a4a8c6 10 * VAX UNIBUS adapter registers
1cb3d36a 11 */
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12
13/*
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14 * "UNIBUS" adaptor types.
15 * This code is used for both UNIBUSes and Q-buses
16 * with different types of adaptors.
17 * Definition of a type includes support code for that type.
bce08673 18 */
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19#if VAX780 || VAX8600
20#define DW780 1 /* has adaptor regs, sr: 780/785/8600 */
21#endif
22
23#if VAX750
24#define DW750 2 /* has adaptor regs, no sr: 750, 730 */
25#endif
26
27#if VAX730
28#define DW730 3 /* has adaptor regs, no sr: 750, 730 */
29#endif
30
f6322301 31#if VAX630 || VAX650
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32#define QBA 4 /* 22-bit Q-bus, no adaptor regs: uVAX II */
33#endif
34
35#if VAX8200 || VAX8500 || VAX8800
36#define DWBUA 5 /* BI UNIBUS adaptor: 8200/8500/8800 */
37#endif
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38
39/*
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40 * Size of unibus memory address space in pages
41 * (also number of map registers).
42 * QBAPAGES should be 8192, but umem needs to be expanded.
bce08673 43 */
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44#define UBAPAGES 496
45#define NUBMREG 496
46#define QBAPAGES UBAPAGES /* for now; should be 8192 */
ea457f9f 47#define UBAIOADDR 0760000 /* start of I/O page */
63503d24 48#define UBAIOPAGES 16
bce08673 49
b5fa1937 50#ifndef LOCORE
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51/*
52 * DWBUA hardware registers.
53 */
54struct dwbua_regs {
55 int pad1[456]; /* actually bii regs + pad */
56 int bua_csr; /* control and status register */
57 int bua_offset; /* vector offset register */
58 int bua_fubar; /* failed UNIBUS address register */
59 int bua_bifar; /* BI failed address register */
60 int bua_udiag[5]; /* micro diagnostics (R/O) */
61 int pad2[3];
62/* dpr[0] is for DDP; dpr's 1 through 5 are for BPD's 1 through 5 */
63 int bua_dpr[6]; /* data path registers */
64 int pad3[10];
65 int bua_bdps[20]; /* buffered data path space *//*???*/
66 int pad4[8];
67 struct pte bua_map[UBAPAGES]; /* unibus map registers */
68 int pad5[UBAIOPAGES]; /* no maps for device address space */
69};
70
71#ifdef DWBUA
72/* bua_csr */
73#define BUACSR_ERR 0x80000000 /* composite error */
74#define BUACSR_BIF 0x10000000 /* BI failure */
75#define BUACSR_SSYNTO 0x08000000 /* slave sync timeout */
76#define BUACSR_UIE 0x04000000 /* unibus interlock error */
77#define BUACSR_IVMR 0x02000000 /* invalid map register */
78#define BUACSR_BADBDP 0x01000000 /* bad BDP select */
79#define BUACSR_BUAEIE 0x00100000 /* bua error interrupt enable (?) */
80#define BUACSR_UPI 0x00020000 /* unibus power init */
81#define BUACSR_UREGDUMP 0x00010000 /* microdiag register dump */
82#define BUACSR_IERRNO 0x000000ff /* mask for internal errror number */
83
84/* bua_offset */
85#define BUAOFFSET_MASK 0x00003e00 /* hence max offset = 15872 */
86
87/* bua_dpr */
88#define BUADPR_DPSEL 0x00e00000 /* data path select (?) */
89#define BUADPR_PURGE 0x00000001 /* purge bdp */
90
91/* bua_map -- in particular, those bits that are not in DW780s & DW750s */
92#define BUAMR_IOADR 0x40000000 /* I/O address space */
93#define BUAMR_LAE 0x04000000 /* longword access enable */
94 /* I see no reason to use either one, though ... act 6 Aug 1987 */
95
96#define UBA_PURGEBUA(uba, bdp) \
97 (((struct dwbua_regs *)(uba))->bua_dpr[bdp] |= BUADPR_PURGE)
98#else
99#define UBA_PURGEBUA(uba, bdp)
100#endif
101
1cb3d36a 102/*
63503d24 103 * DW780/DW750 hardware registers
1cb3d36a 104 */
b0a4a8c6 105struct uba_regs {
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106 int uba_cnfgr; /* configuration register */
107 int uba_cr; /* control register */
108 int uba_sr; /* status register */
109 int uba_dcr; /* diagnostic control register */
110 int uba_fmer; /* failed map entry register */
111 int uba_fubar; /* failed UNIBUS address register */
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112 int pad1[2];
113 int uba_brsvr[4];
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114 int uba_brrvr[4]; /* receive vector registers */
115 int uba_dpr[16]; /* buffered data path register */
1cb3d36a 116 int pad2[480];
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117 struct pte uba_map[UBAPAGES]; /* unibus map register */
118 int pad3[UBAIOPAGES]; /* no maps for device address space */
10a50234 119};
b5fa1937 120#endif
10a50234 121
63503d24 122#ifdef DW780
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123/* uba_cnfgr */
124#define UBACNFGR_UBINIT 0x00040000 /* unibus init asserted */
125#define UBACNFGR_UBPDN 0x00020000 /* unibus power down */
126#define UBACNFGR_UBIC 0x00010000 /* unibus init complete */
127
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128#define UBACNFGR_BITS \
129"\40\40PARFLT\37WSQFLT\36URDFLT\35ISQFLT\34MXTFLT\33XMTFLT\30ADPDN\27ADPUP\23UBINIT\22UBPDN\21UBIC"
130
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131/* uba_cr */
132#define UBACR_MRD16 0x40000000 /* map reg disable bit 4 */
133#define UBACR_MRD8 0x20000000 /* map reg disable bit 3 */
134#define UBACR_MRD4 0x10000000 /* map reg disable bit 2 */
135#define UBACR_MRD2 0x08000000 /* map reg disable bit 1 */
136#define UBACR_MRD1 0x04000000 /* map reg disable bit 0 */
137#define UBACR_IFS 0x00000040 /* interrupt field switch */
138#define UBACR_BRIE 0x00000020 /* BR interrupt enable */
139#define UBACR_USEFIE 0x00000010 /* UNIBUS to SBI error field IE */
140#define UBACR_SUEFIE 0x00000008 /* SBI to UNIBUS error field IE */
141#define UBACR_CNFIE 0x00000004 /* configuration IE */
142#define UBACR_UPF 0x00000002 /* UNIBUS power fail */
143#define UBACR_ADINIT 0x00000001 /* adapter init */
10a50234 144
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145/* uba_sr */
146#define UBASR_BR7FULL 0x08000000 /* BR7 receive vector reg full */
147#define UBASR_BR6FULL 0x04000000 /* BR6 receive vector reg full */
148#define UBASR_BR5FULL 0x02000000 /* BR5 receive vector reg full */
149#define UBASR_BR4FULL 0x01000000 /* BR4 receive vector reg full */
150#define UBASR_RDTO 0x00000400 /* UNIBUS to SBI read data timeout */
151#define UBASR_RDS 0x00000200 /* read data substitute */
152#define UBASR_CRD 0x00000100 /* corrected read data */
153#define UBASR_CXTER 0x00000080 /* command transmit error */
154#define UBASR_CXTMO 0x00000040 /* command transmit timeout */
155#define UBASR_DPPE 0x00000020 /* data path parity error */
156#define UBASR_IVMR 0x00000010 /* invalid map register */
157#define UBASR_MRPF 0x00000008 /* map register parity failure */
158#define UBASR_LEB 0x00000004 /* lost error */
159#define UBASR_UBSTO 0x00000002 /* UNIBUS select timeout */
160#define UBASR_UBSSYNTO 0x00000001 /* UNIBUS slave sync timeout */
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161
162#define UBASR_BITS \
163"\20\13RDTO\12RDS\11CRD\10CXTER\7CXTMO\6DPPE\5IVMR\4MRPF\3LEB\2UBSTO\1UBSSYNTO"
10a50234 164
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165/* uba_brrvr[] */
166#define UBABRRVR_AIRI 0x80000000 /* adapter interrupt request */
167#define UBABRRVR_DIV 0x0000ffff /* device interrupt vector field */
bce08673 168#endif
10a50234 169
4df4b0ef 170/* uba_dpr */
63503d24 171#ifdef DW780
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172#define UBADPR_BNE 0x80000000 /* buffer not empty - purge */
173#define UBADPR_BTE 0x40000000 /* buffer transfer error */
174#define UBADPR_DPF 0x20000000 /* DP function (RO) */
175#define UBADPR_BS 0x007f0000 /* buffer state field */
176#define UBADPR_BUBA 0x0000ffff /* buffered UNIBUS address */
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177#define UBA_PURGE780(uba, bdp) \
178 ((uba)->uba_dpr[bdp] |= UBADPR_BNE)
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179#else
180#define UBA_PURGE780(uba, bdp)
181#endif
63503d24 182#ifdef DW750
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183#define UBADPR_ERROR 0x80000000 /* error occurred */
184#define UBADPR_NXM 0x40000000 /* nxm from memory */
185#define UBADPR_UCE 0x20000000 /* uncorrectable error */
186#define UBADPR_PURGE 0x00000001 /* purge bdp */
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187/* the DELAY is for a hardware problem */
188#define UBA_PURGE750(uba, bdp) { \
189 ((uba)->uba_dpr[bdp] |= (UBADPR_PURGE|UBADPR_NXM|UBADPR_UCE)); \
190 DELAY(8); \
191}
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192#else
193#define UBA_PURGE750(uba, bdp)
194#endif
195
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196/*
197 * Macros for fast buffered data path purging in time-critical routines.
198 *
199 * Too bad C pre-processor doesn't have the power of LISP in macro
200 * expansion...
201 */
bce08673 202
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203/* THIS IS WRONG, should use pointer to uba_hd */
204#if DWBUA || DW780 || DW750
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205#define UBAPURGE(uba, bdp) { \
206 switch (cpu) { \
b0a4a8c6 207 case VAX_8200: UBA_PURGEBUA(uba, bdp); break; \
bce08673 208 case VAX_8600: case VAX_780: UBA_PURGE780((uba), (bdp)); break; \
4c078bb2 209 case VAX_750: UBA_PURGE750((uba), (bdp)); break; \
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210 } \
211}
63503d24 212#else
23bd9454 213#define UBAPURGE(uba, bdp)
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214#endif
215
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216
217
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218/* uba_mr[] */
219#define UBAMR_MRV 0x80000000 /* map register valid */
220#define UBAMR_BO 0x02000000 /* byte offset bit */
221#define UBAMR_DPDB 0x01e00000 /* data path designator field */
b0a4a8c6 222#define UBAMR_SBIPFN 0x001fffff /* SBI page address field */
10a50234 223
4df4b0ef 224#define UBAMR_DPSHIFT 21 /* shift to data path designator */
10a50234 225
10a50234 226/*
4df4b0ef 227 * Number of unibus buffered data paths and possible uba's per cpu type.
10a50234 228 */
bce08673 229#define NBDP8600 15
63503d24 230#define NBDP780 15
b0a4a8c6 231#define NBDPBUA 5
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232#define NBDP750 3
233#define NBDP730 0
234#define MAXNBDP 15
10a50234 235
10a50234 236/*
bce08673 237 * Symbolic BUS addresses for UBAs.
10a50234 238 */
bce08673 239
f6322301 240#if VAX630 || VAX650
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241#define QBAMAP630 ((struct pte *)0x20088000)
242#define QMEM630 0x30000000
243#define QIOPAGE630 0x20000000
244/*
245 * Q-bus control registers
246 */
247#define QIPCR 0x1f40 /* from start of iopage */
248/* bits in QIPCR */
249#define Q_DBIRQ 0x0001 /* doorbell interrupt request */
250#define Q_LMEAE 0x0020 /* local mem external access enable */
251#define Q_DBIIE 0x0040 /* doorbell interrupt enable */
252#define Q_AUXHLT 0x0100 /* auxiliary processor halt */
253#define Q_DMAQPE 0x8000 /* Q22 bus address space parity error */
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254#endif
255
10f66600 256#if VAX730
63503d24 257#define UMEM730 0xfc0000
ea4d5e21 258#endif
bce08673 259
4df4b0ef 260#if VAX750
63503d24 261#define UMEM750(i) (0xfc0000-(i)*0x40000)
6531d33e 262#endif
bce08673 263
6531d33e 264#if VAX780
63503d24 265#define UMEM780(i) (0x20100000+(i)*0x40000)
b5fa1937 266#endif
62c8c966 267
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268#if VAX8200 /* BEWARE, argument is node, not ubanum */
269#define UMEM8200(i) (0x20400000+(i)*0x40000)
270#endif
271
bce08673 272#if VAX8600
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273#define UMEMA8600(i) (0x20100000+(i)*0x40000)
274#define UMEMB8600(i) (0x22100000+(i)*0x40000)
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275#endif
276
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277/*
278 * Macro to offset a UNIBUS device address, often expressed as
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279 * something like 0172520, by forcing it into the last 8K
280 * of UNIBUS memory space.
62c8c966 281 */
63503d24 282#define ubdevreg(addr) ((addr) & 017777)