1 /* $NetBSD: bi_nmi.c,v 1.8 2010/12/14 23:38:30 matt 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 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed at Ludd, University of 17 * Lule}, Sweden and its contributors. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: bi_nmi.c,v 1.8 2010/12/14 23:38:30 matt Exp $"); 35 36 #define _VAX_BUS_DMA_PRIVATE 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/bus.h> 41 #include <sys/cpu.h> 42 #include <sys/device.h> 43 44 #include <machine/nexus.h> 45 #include <machine/sid.h> 46 #include <machine/scb.h> 47 #include <machine/ka88.h> 48 49 #include <dev/bi/bivar.h> 50 #include <dev/bi/bireg.h> 51 52 #include "locators.h" 53 54 static int 55 bi_nmi_match(device_t parent, cfdata_t cf, void *aux) 56 { 57 struct nmi_attach_args * const na = aux; 58 59 if (cf->cf_loc[NMICF_SLOT] != NMICF_SLOT_DEFAULT && 60 cf->cf_loc[NMICF_SLOT] != na->na_slot) 61 return 0; 62 return na->na_slot < 10; 63 } 64 65 static void 66 bi_nmi_attach(device_t parent, device_t self, void *aux) 67 { 68 struct nmi_attach_args * const na = aux; 69 struct bi_softc * const sc = device_private(self); 70 volatile int *v, *v2; 71 extern int avail_end; 72 int nid; 73 74 sc->sc_dev = self; 75 76 /* 77 * Fill in bus specific data. 78 */ 79 sc->sc_addr = (bus_addr_t)BI_BASE(na->na_slot, 0); 80 sc->sc_iot = na->na_iot; /* No special I/O handling */ 81 sc->sc_dmat = na->na_dmat; /* No special DMA handling either */ 82 83 /* Must get the NBIB node number (interrupt routing) */ 84 /* 85 * XXX - need a big cleanup here! 86 */ 87 v = (int *)vax_map_physmem(NBIA_REGS(na->na_slot/2), 1); 88 v[1] = v[1]; /* Clear errors */ 89 v[0] = 0x400 | CSR0_NBIIE | CSR0_LOOP; /* XXX */ 90 v2 = (int *)vax_map_physmem(sc->sc_addr, 1); 91 v2[10] = v2[10] | 0x48; 92 v2[8] = 0; 93 v2[9] = (avail_end + 0x3ffff) & (~0x3ffff); 94 v2[2] = v2[2]; 95 v2[1] = v2[1] | BICSR_BROKE; 96 nid = v2[1] & 15; 97 v[0] = (v[0] & ~CSR0_LOOP); 98 DELAY(1000); 99 100 sc->sc_intcpu = 1 << nid; 101 sc->sc_lastiv = /* 0x400 * na->na_slot + */ 0x400; 102 103 bi_attach(sc); 104 } 105 106 CFATTACH_DECL_NEW(bi_nmi, sizeof(struct bi_softc), 107 bi_nmi_match, bi_nmi_attach, NULL, NULL); 108