1 /* $NetBSD: nmi_mainbus.c,v 1.14 2021/08/07 16:19:07 thorpej Exp $ */
2 /*
3 * Copyright (c) 2000 Ludd, University of Lule}, Sweden.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 #include <sys/cdefs.h>
28 __KERNEL_RCSID(0, "$NetBSD: nmi_mainbus.c,v 1.14 2021/08/07 16:19:07 thorpej Exp $");
29
30 #define _VAX_BUS_DMA_PRIVATE
31
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/bus.h>
35 #include <sys/cpu.h>
36 #include <sys/device.h>
37
38 #include <machine/nexus.h>
39 #include <machine/sid.h>
40 #include <machine/scb.h>
41 #include <machine/ka88.h>
42 #include <machine/mainbus.h>
43
44 #include "ioconf.h"
45
46 static int
nmi_mainbus_print(void * aux,const char * name)47 nmi_mainbus_print(void *aux, const char *name)
48 {
49 struct nmi_attach_args *na = aux;
50 const char *c;
51
52 if (name) {
53 if (na->na_slot < 10)
54 c = "bi";
55 else if (na->na_slot < 20)
56 c = "mem";
57 else
58 c = "cpu";
59 aprint_normal("%s at %s", c, name);
60 if (na->na_slot < 10)
61 aprint_normal(" slot %d", na->na_slot);
62 if (vax_boardtype == VAX_BTYP_8800 && na->na_slot > 20)
63 aprint_normal(" (%s)", ka88_confdata & KA88_LEFTPRIM ?
64 "right" : "left");
65 }
66 return UNCONF;
67 }
68
69 static int
nmi_mainbus_match(device_t parent,cfdata_t cf,void * aux)70 nmi_mainbus_match(device_t parent, cfdata_t cf, void *aux)
71 {
72 struct mainbus_attach_args * const ma = aux;
73
74 return !strcmp(nmi_cd.cd_name, ma->ma_type);
75 }
76
77 static void
nmi_mainbus_attach(device_t parent,device_t self,void * aux)78 nmi_mainbus_attach(device_t parent, device_t self, void *aux)
79 {
80 struct mainbus_attach_args * const ma = aux;
81 struct nmi_attach_args na;
82 int nbia, *r = 0;
83
84 aprint_normal("\n");
85
86 na.na_iot = ma->ma_iot;
87 na.na_dmat = ma->ma_dmat;
88
89 /* One CPU is always found */
90 na.na_type = "cpu";
91 na.na_slot = 20;
92 config_found(self, (void *)&na, nmi_mainbus_print, CFARGS_NONE);
93
94 /* Check for a second one */
95 if (vax_boardtype == VAX_BTYP_8800) {
96 na.na_type = "cpu";
97 na.na_slot = 21;
98 config_found(self, (void *)&na, nmi_mainbus_print, CFARGS_NONE);
99 }
100
101 /* One memory adapter is also present */
102 na.na_type = "mem";
103 na.na_slot = 10;
104 config_found(self, (void *)&na, nmi_mainbus_print, CFARGS_NONE);
105
106 /* Enable BI interrupts */
107 mtpr(NICTRL_DEV0|NICTRL_DEV1|NICTRL_MNF, PR_NICTRL);
108
109 /* Search for NBIA/NBIB adapters */
110 na.na_type = "bi";
111 for (nbia = 0; nbia < 2; nbia++) {
112 if (r)
113 vax_unmap_physmem((vaddr_t)r, 1);
114 r = (int *)vax_map_physmem(NBIA_REGS(nbia), 1);
115 if (badaddr((void *)r, 4))
116 continue;
117 na.na_slot = 2 * nbia;
118 if (r[1] & 2)
119 config_found(self, (void *)&na, nmi_mainbus_print,
120 CFARGS_NONE);
121 na.na_slot++;
122 if (r[1] & 4)
123 config_found(self, (void *)&na, nmi_mainbus_print,
124 CFARGS_NONE);
125 }
126 }
127
128 CFATTACH_DECL_NEW(nmi_mainbus, 0,
129 nmi_mainbus_match, nmi_mainbus_attach, NULL, NULL);
130