1/* $NetBSD: bi_nmi.c,v 1.9 2017/05/22 16:53:59 ragge Exp $ */ 2/* 3 * Copyright (c) 1999 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: bi_nmi.c,v 1.9 2017/05/22 16:53:59 ragge 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 43#include <dev/bi/bivar.h> 44#include <dev/bi/bireg.h> 45 46#include "locators.h" 47 48static int 49bi_nmi_match(device_t parent, cfdata_t cf, void *aux) 50{ 51 struct nmi_attach_args * const na = aux; 52 53 if (cf->cf_loc[NMICF_SLOT] != NMICF_SLOT_DEFAULT && 54 cf->cf_loc[NMICF_SLOT] != na->na_slot) 55 return 0; 56 return na->na_slot < 10; 57} 58 59static void 60bi_nmi_attach(device_t parent, device_t self, void *aux) 61{ 62 struct nmi_attach_args * const na = aux; 63 struct bi_softc * const sc = device_private(self); 64 volatile int *v, *v2; 65 extern int avail_end; 66 int nid; 67 68 sc->sc_dev = self; 69 70 /* 71 * Fill in bus specific data. 72 */ 73 sc->sc_addr = (bus_addr_t)BI_BASE(na->na_slot, 0); 74 sc->sc_iot = na->na_iot; /* No special I/O handling */ 75 sc->sc_dmat = na->na_dmat; /* No special DMA handling either */ 76 77 /* Must get the NBIB node number (interrupt routing) */ 78 /* 79 * XXX - need a big cleanup here! 80 */ 81 v = (int *)vax_map_physmem(NBIA_REGS(na->na_slot/2), 1); 82 v[1] = v[1]; /* Clear errors */ 83 v[0] = 0x400 | CSR0_NBIIE | CSR0_LOOP; /* XXX */ 84 v2 = (int *)vax_map_physmem(sc->sc_addr, 1); 85 v2[10] = v2[10] | 0x48; 86 v2[8] = 0; 87 v2[9] = (avail_end + 0x3ffff) & (~0x3ffff); 88 v2[2] = v2[2]; 89 v2[1] = v2[1] | BICSR_BROKE; 90 nid = v2[1] & 15; 91 v[0] = (v[0] & ~CSR0_LOOP); 92 DELAY(1000); 93 94 sc->sc_intcpu = 1 << nid; 95 sc->sc_lastiv = /* 0x400 * na->na_slot + */ 0x400; 96 97 bi_attach(sc); 98} 99 100CFATTACH_DECL_NEW(bi_nmi, sizeof(struct bi_softc), 101 bi_nmi_match, bi_nmi_attach, NULL, NULL); 102