1 /* $NetBSD: bi_nmi.c,v 1.6 2005/12/11 12:19:29 christos 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 1.6 2005/12/11 12:19:29 christos Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/device.h> 38 #include <sys/systm.h> 39 40 #define _VAX_BUS_DMA_PRIVATE 41 #include <machine/bus.h> 42 #include <machine/nexus.h> 43 #include <machine/sid.h> 44 #include <machine/scb.h> 45 #include <machine/cpu.h> 46 #include <machine/ka88.h> 47 48 #include <dev/bi/bivar.h> 49 #include <dev/bi/bireg.h> 50 51 #include "locators.h" 52 53 extern struct vax_bus_space vax_mem_bus_space; 54 extern struct vax_bus_dma_tag vax_bus_dma_tag; 55 56 static int 57 bi_nmi_match(struct device *parent, struct cfdata *cf, void *aux) 58 { 59 struct nmi_attach_args *na = aux; 60 61 if (cf->cf_loc[NMICF_SLOT] != NMICF_SLOT_DEFAULT && 62 cf->cf_loc[NMICF_SLOT] != na->slot) 63 return 0; 64 if (na->slot < 10) 65 return 1; 66 return 0; 67 } 68 69 static void 70 bi_nmi_attach(struct device *parent, struct device *self, void *aux) 71 { 72 struct nmi_attach_args *na = aux; 73 struct bi_softc *sc = (void *)self; 74 volatile int *v, *v2; 75 extern int avail_end; 76 int nid; 77 78 /* 79 * Fill in bus specific data. 80 */ 81 sc->sc_addr = (bus_addr_t)BI_BASE(na->slot, 0); 82 sc->sc_iot = &vax_mem_bus_space; /* No special I/O handling */ 83 sc->sc_dmat = &vax_bus_dma_tag; /* No special DMA handling either */ 84 85 /* Must get the NBIB node number (interrupt routing) */ 86 /* 87 * XXX - need a big cleanup here! 88 */ 89 v = (int *)vax_map_physmem(NBIA_REGS(na->slot/2), 1); 90 v[1] = v[1]; /* Clear errors */ 91 v[0] = 0x400 | CSR0_NBIIE | CSR0_LOOP; /* XXX */ 92 v2 = (int *)vax_map_physmem(sc->sc_addr, 1); 93 v2[10] = v2[10] | 0x48; 94 v2[8] = 0; 95 v2[9] = (avail_end + 0x3ffff) & (~0x3ffff); 96 v2[2] = v2[2]; 97 v2[1] = v2[1] | BICSR_BROKE; 98 nid = v2[1] & 15; 99 v[0] = (v[0] & ~CSR0_LOOP); 100 DELAY(1000); 101 102 sc->sc_intcpu = 1 << nid; 103 sc->sc_lastiv = /* 0x400 * na->slot + */ 0x400; 104 105 bi_attach(sc); 106 } 107 108 CFATTACH_DECL(bi_nmi, sizeof(struct bi_softc), 109 bi_nmi_match, bi_nmi_attach, NULL, NULL); 110