1 /* $NetBSD: bi_nmi.c,v 1.4 2002/10/02 16:02:32 thorpej 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/param.h> 34 #include <sys/device.h> 35 #include <sys/systm.h> 36 37 #define _VAX_BUS_DMA_PRIVATE 38 #include <machine/bus.h> 39 #include <machine/nexus.h> 40 #include <machine/sid.h> 41 #include <machine/scb.h> 42 #include <machine/cpu.h> 43 #include <machine/ka88.h> 44 45 #include <dev/bi/bivar.h> 46 #include <dev/bi/bireg.h> 47 48 #include "locators.h" 49 50 extern struct vax_bus_space vax_mem_bus_space; 51 extern struct vax_bus_dma_tag vax_bus_dma_tag; 52 53 static int 54 bi_nmi_match(struct device *parent, struct cfdata *cf, void *aux) 55 { 56 struct nmi_attach_args *na = aux; 57 58 if (cf->cf_loc[NMICF_SLOT] != NMICF_SLOT_DEFAULT && 59 cf->cf_loc[NMICF_SLOT] != na->slot) 60 return 0; 61 if (na->slot < 10) 62 return 1; 63 return 0; 64 } 65 66 static void 67 bi_nmi_attach(struct device *parent, struct device *self, void *aux) 68 { 69 struct nmi_attach_args *na = aux; 70 struct bi_softc *sc = (void *)self; 71 volatile int *v, *v2; 72 extern int avail_end; 73 int nid; 74 75 /* 76 * Fill in bus specific data. 77 */ 78 sc->sc_addr = (bus_addr_t)BI_BASE(na->slot, 0); 79 sc->sc_iot = &vax_mem_bus_space; /* No special I/O handling */ 80 sc->sc_dmat = &vax_bus_dma_tag; /* No special DMA handling either */ 81 82 /* Must get the NBIB node number (interrupt routing) */ 83 /* 84 * XXX - need a big cleanup here! 85 */ 86 v = (int *)vax_map_physmem(NBIA_REGS(na->slot/2), 1); 87 v[1] = v[1]; /* Clear errors */ 88 v[0] = 0x400 | CSR0_NBIIE | CSR0_LOOP; /* XXX */ 89 v2 = (int *)vax_map_physmem(sc->sc_addr, 1); 90 v2[10] = v2[10] | 0x48; 91 v2[8] = 0; 92 v2[9] = (avail_end + 0x3ffff) & (~0x3ffff); 93 v2[2] = v2[2]; 94 v2[1] = v2[1] | BICSR_BROKE; 95 nid = v2[1] & 15; 96 v[0] = (v[0] & ~CSR0_LOOP); 97 DELAY(1000); 98 99 sc->sc_intcpu = 1 << nid; 100 sc->sc_lastiv = /* 0x400 * na->slot + */ 0x400; 101 102 bi_attach(sc); 103 } 104 105 CFATTACH_DECL(bi_nmi, sizeof(struct bi_softc), 106 bi_nmi_match, bi_nmi_attach, NULL, NULL); 107