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      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
     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
     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
     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