apecs.c revision 1.49.2.1
1 /* $NetBSD: apecs.c,v 1.49.2.1 2010/04/30 14:39:03 uebayasi 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 1.49.2.1 2010/04/30 14:39:03 uebayasi 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 static int apecsmatch(device_t, cfdata_t, void *); 101 static void apecsattach(device_t, device_t, void *); 102 103 CFATTACH_DECL_NEW(apecs, 0, apecsmatch, apecsattach, NULL, NULL); 104 105 extern struct cfdriver apecs_cd; 106 107 static int apecs_bus_get_window(int, int, 108 struct alpha_bus_space_translation *); 109 110 /* There can be only one. */ 111 int apecsfound; 112 struct apecs_config apecs_configuration; 113 114 static int 115 apecsmatch(device_t parent, cfdata_t match, void *aux) 116 { 117 struct mainbus_attach_args *ma = aux; 118 119 /* Make sure that we're looking for an APECS. */ 120 if (strcmp(ma->ma_name, apecs_cd.cd_name) != 0) 121 return (0); 122 123 if (apecsfound) 124 return (0); 125 126 return (1); 127 } 128 129 /* 130 * Set up the chipset's function pointers. 131 */ 132 void 133 apecs_init(struct apecs_config *acp, int mallocsafe) 134 { 135 acp->ac_comanche_pass2 = 136 (REGVAL(COMANCHE_ED) & COMANCHE_ED_PASS2) != 0; 137 acp->ac_memwidth = 138 (REGVAL(COMANCHE_GCR) & COMANCHE_GCR_WIDEMEM) != 0 ? 128 : 64; 139 acp->ac_epic_pass2 = 140 (REGVAL(EPIC_DCSR) & EPIC_DCSR_PASS2) != 0; 141 142 acp->ac_haxr1 = REGVAL(EPIC_HAXR1); 143 acp->ac_haxr2 = REGVAL(EPIC_HAXR2); 144 145 if (!acp->ac_initted) { 146 /* don't do these twice since they set up extents */ 147 apecs_bus_io_init(&acp->ac_iot, acp); 148 apecs_bus_mem_init(&acp->ac_memt, acp); 149 150 /* 151 * We have two I/O windows and 3 MEM windows. 152 */ 153 alpha_bus_window_count[ALPHA_BUS_TYPE_PCI_IO] = 2; 154 alpha_bus_window_count[ALPHA_BUS_TYPE_PCI_MEM] = 3; 155 alpha_bus_get_window = apecs_bus_get_window; 156 } 157 acp->ac_mallocsafe = mallocsafe; 158 159 apecs_pci_init(&acp->ac_pc, acp); 160 alpha_pci_chipset = &acp->ac_pc; 161 162 acp->ac_initted = 1; 163 } 164 165 static void 166 apecsattach(device_t parent, device_t self, void *aux) 167 { 168 struct apecs_config *acp; 169 struct pcibus_attach_args pba; 170 171 /* note that we've attached the chipset; can't have 2 APECSes. */ 172 apecsfound = 1; 173 174 /* 175 * set up the chipset's info; done once at console init time 176 * (maybe), but doesn't hurt to do twice. 177 */ 178 acp = &apecs_configuration; 179 apecs_init(acp, 1); 180 181 apecs_dma_init(acp); 182 183 printf(": DECchip %s Core Logic chipset\n", 184 acp->ac_memwidth == 128 ? "21072" : "21071"); 185 printf("%s: DC21071-CA pass %d, %d-bit memory bus\n", 186 self->dv_xname, acp->ac_comanche_pass2 ? 2 : 1, acp->ac_memwidth); 187 printf("%s: DC21071-DA pass %d\n", self->dv_xname, 188 acp->ac_epic_pass2 ? 2 : 1); 189 /* XXX print bcache size */ 190 191 if (!acp->ac_epic_pass2) 192 printf("WARNING: 21071-DA NOT PASS2... NO BETS...\n"); 193 194 switch (cputype) { 195 #ifdef DEC_2100_A50 196 case ST_DEC_2100_A50: 197 pci_2100_a50_pickintr(acp); 198 break; 199 #endif 200 201 #ifdef DEC_EB64PLUS 202 case ST_EB64P: 203 pci_eb64plus_pickintr(acp); 204 break; 205 #endif 206 207 #ifdef DEC_1000A 208 case ST_DEC_1000A: 209 pci_1000a_pickintr(acp, &acp->ac_iot, &acp->ac_memt, 210 &acp->ac_pc); 211 break; 212 #endif 213 214 #ifdef DEC_1000 215 case ST_DEC_1000: 216 pci_1000_pickintr(acp, &acp->ac_iot, &acp->ac_memt, 217 &acp->ac_pc); 218 break; 219 #endif 220 221 default: 222 panic("apecsattach: shouldn't be here, really..."); 223 } 224 225 pba.pba_iot = &acp->ac_iot; 226 pba.pba_memt = &acp->ac_memt; 227 pba.pba_dmat = 228 alphabus_dma_get_tag(&acp->ac_dmat_direct, ALPHA_BUS_PCI); 229 pba.pba_dmat64 = NULL; 230 pba.pba_pc = &acp->ac_pc; 231 pba.pba_bus = 0; 232 pba.pba_bridgetag = NULL; 233 pba.pba_flags = PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED | 234 PCI_FLAGS_MRL_OKAY | PCI_FLAGS_MRM_OKAY | PCI_FLAGS_MWI_OKAY; 235 config_found_ia(self, "pcibus", &pba, pcibusprint); 236 } 237 238 static int 239 apecs_bus_get_window(int type, int window, struct alpha_bus_space_translation *abst) 240 { 241 struct apecs_config *acp = &apecs_configuration; 242 bus_space_tag_t st; 243 244 switch (type) { 245 case ALPHA_BUS_TYPE_PCI_IO: 246 st = &acp->ac_iot; 247 break; 248 249 case ALPHA_BUS_TYPE_PCI_MEM: 250 st = &acp->ac_memt; 251 break; 252 253 default: 254 panic("apecs_bus_get_window"); 255 } 256 257 return (alpha_bus_space_get_window(st, window, abst)); 258 } 259
Indexes created Thu Oct 23 22:10:10 GMT 2025