apecs.c revision 1.45.74.1
1 /* $NetBSD: apecs.c,v 1.45.74.1 2008/06/02 13:21:46 mjf Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 1995, 1996 Carnegie-Mellon University. 34 * All rights reserved. 35 * 36 * Author: Chris G. Demetriou 37 * 38 * Permission to use, copy, modify and distribute this software and 39 * its documentation is hereby granted, provided that both the copyright 40 * notice and this permission notice appear in all copies of the 41 * software, derivative works or modified versions, and any portions 42 * thereof, and that both notices appear in supporting documentation. 43 * 44 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 45 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 46 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 47 * 48 * Carnegie Mellon requests users of this software to return to 49 * 50 * Software Distribution Coordinator or Software.Distribution (at) CS.CMU.EDU 51 * School of Computer Science 52 * Carnegie Mellon University 53 * Pittsburgh PA 15213-3890 54 * 55 * any improvements or extensions that they make and grant Carnegie the 56 * rights to redistribute these changes. 57 */ 58 59 #include "opt_dec_2100_a50.h" 60 #include "opt_dec_eb64plus.h" 61 #include "opt_dec_1000a.h" 62 #include "opt_dec_1000.h" 63 64 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 65 66 __KERNEL_RCSID(0, "$NetBSD: apecs.c,v 1.45.74.1 2008/06/02 13:21:46 mjf Exp $"); 67 68 #include <sys/param.h> 69 #include <sys/systm.h> 70 #include <sys/kernel.h> 71 #include <sys/malloc.h> 72 #include <sys/device.h> 73 74 #include <uvm/uvm_extern.h> 75 76 #include <machine/autoconf.h> 77 #include <machine/rpb.h> 78 #include <machine/sysarch.h> 79 80 #include <dev/isa/isareg.h> 81 #include <dev/isa/isavar.h> 82 83 #include <dev/pci/pcireg.h> 84 #include <dev/pci/pcivar.h> 85 #include <alpha/pci/apecsreg.h> 86 #include <alpha/pci/apecsvar.h> 87 #ifdef DEC_2100_A50 88 #include <alpha/pci/pci_2100_a50.h> 89 #endif 90 #ifdef DEC_EB64PLUS 91 #include <alpha/pci/pci_eb64plus.h> 92 #endif 93 #ifdef DEC_1000A 94 #include <alpha/pci/pci_1000a.h> 95 #endif 96 #ifdef DEC_1000 97 #include <alpha/pci/pci_1000.h> 98 #endif 99 100 int apecsmatch __P((struct device *, struct cfdata *, void *)); 101 void apecsattach __P((struct device *, struct device *, void *)); 102 103 CFATTACH_DECL(apecs, sizeof(struct apecs_softc), 104 apecsmatch, apecsattach, NULL, NULL); 105 106 extern struct cfdriver apecs_cd; 107 108 int apecs_bus_get_window __P((int, int, 109 struct alpha_bus_space_translation *)); 110 111 /* There can be only one. */ 112 int apecsfound; 113 struct apecs_config apecs_configuration; 114 115 int 116 apecsmatch(parent, match, aux) 117 struct device *parent; 118 struct cfdata *match; 119 void *aux; 120 { 121 struct mainbus_attach_args *ma = aux; 122 123 /* Make sure that we're looking for an APECS. */ 124 if (strcmp(ma->ma_name, apecs_cd.cd_name) != 0) 125 return (0); 126 127 if (apecsfound) 128 return (0); 129 130 return (1); 131 } 132 133 /* 134 * Set up the chipset's function pointers. 135 */ 136 void 137 apecs_init(acp, mallocsafe) 138 struct apecs_config *acp; 139 int mallocsafe; 140 { 141 acp->ac_comanche_pass2 = 142 (REGVAL(COMANCHE_ED) & COMANCHE_ED_PASS2) != 0; 143 acp->ac_memwidth = 144 (REGVAL(COMANCHE_GCR) & COMANCHE_GCR_WIDEMEM) != 0 ? 128 : 64; 145 acp->ac_epic_pass2 = 146 (REGVAL(EPIC_DCSR) & EPIC_DCSR_PASS2) != 0; 147 148 acp->ac_haxr1 = REGVAL(EPIC_HAXR1); 149 acp->ac_haxr2 = REGVAL(EPIC_HAXR2); 150 151 if (!acp->ac_initted) { 152 /* don't do these twice since they set up extents */ 153 apecs_bus_io_init(&acp->ac_iot, acp); 154 apecs_bus_mem_init(&acp->ac_memt, acp); 155 156 /* 157 * We have two I/O windows and 3 MEM windows. 158 */ 159 alpha_bus_window_count[ALPHA_BUS_TYPE_PCI_IO] = 2; 160 alpha_bus_window_count[ALPHA_BUS_TYPE_PCI_MEM] = 3; 161 alpha_bus_get_window = apecs_bus_get_window; 162 } 163 acp->ac_mallocsafe = mallocsafe; 164 165 apecs_pci_init(&acp->ac_pc, acp); 166 alpha_pci_chipset = &acp->ac_pc; 167 168 acp->ac_initted = 1; 169 } 170 171 void 172 apecsattach(parent, self, aux) 173 struct device *parent, *self; 174 void *aux; 175 { 176 struct apecs_softc *sc = (struct apecs_softc *)self; 177 struct apecs_config *acp; 178 struct pcibus_attach_args pba; 179 180 /* note that we've attached the chipset; can't have 2 APECSes. */ 181 apecsfound = 1; 182 183 /* 184 * set up the chipset's info; done once at console init time 185 * (maybe), but doesn't hurt to do twice. 186 */ 187 acp = sc->sc_acp = &apecs_configuration; 188 apecs_init(acp, 1); 189 190 apecs_dma_init(acp); 191 192 printf(": DECchip %s Core Logic chipset\n", 193 acp->ac_memwidth == 128 ? "21072" : "21071"); 194 printf("%s: DC21071-CA pass %d, %d-bit memory bus\n", 195 self->dv_xname, acp->ac_comanche_pass2 ? 2 : 1, acp->ac_memwidth); 196 printf("%s: DC21071-DA pass %d\n", self->dv_xname, 197 acp->ac_epic_pass2 ? 2 : 1); 198 /* XXX print bcache size */ 199 200 if (!acp->ac_epic_pass2) 201 printf("WARNING: 21071-DA NOT PASS2... NO BETS...\n"); 202 203 switch (cputype) { 204 #ifdef DEC_2100_A50 205 case ST_DEC_2100_A50: 206 pci_2100_a50_pickintr(acp); 207 break; 208 #endif 209 210 #ifdef DEC_EB64PLUS 211 case ST_EB64P: 212 pci_eb64plus_pickintr(acp); 213 break; 214 #endif 215 216 #ifdef DEC_1000A 217 case ST_DEC_1000A: 218 pci_1000a_pickintr(acp, &acp->ac_iot, &acp->ac_memt, 219 &acp->ac_pc); 220 break; 221 #endif 222 223 #ifdef DEC_1000 224 case ST_DEC_1000: 225 pci_1000_pickintr(acp, &acp->ac_iot, &acp->ac_memt, 226 &acp->ac_pc); 227 break; 228 #endif 229 230 default: 231 panic("apecsattach: shouldn't be here, really..."); 232 } 233 234 pba.pba_iot = &acp->ac_iot; 235 pba.pba_memt = &acp->ac_memt; 236 pba.pba_dmat = 237 alphabus_dma_get_tag(&acp->ac_dmat_direct, ALPHA_BUS_PCI); 238 pba.pba_dmat64 = NULL; 239 pba.pba_pc = &acp->ac_pc; 240 pba.pba_bus = 0; 241 pba.pba_bridgetag = NULL; 242 pba.pba_flags = PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED | 243 PCI_FLAGS_MRL_OKAY | PCI_FLAGS_MRM_OKAY | PCI_FLAGS_MWI_OKAY; 244 config_found_ia(self, "pcibus", &pba, pcibusprint); 245 } 246 247 int 248 apecs_bus_get_window(type, window, abst) 249 int type, window; 250 struct alpha_bus_space_translation *abst; 251 { 252 struct apecs_config *acp = &apecs_configuration; 253 bus_space_tag_t st; 254 255 switch (type) { 256 case ALPHA_BUS_TYPE_PCI_IO: 257 st = &acp->ac_iot; 258 break; 259 260 case ALPHA_BUS_TYPE_PCI_MEM: 261 st = &acp->ac_memt; 262 break; 263 264 default: 265 panic("apecs_bus_get_window"); 266 } 267 268 return (alpha_bus_space_get_window(st, window, abst)); 269 } 270
Indexes created Wed Oct 22 13:09:56 GMT 2025