Annotation of sys/arch/i386/i386/mainbus.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: mainbus.c,v 1.38 2007/05/29 21:01:56 tedu Exp $ */
! 2: /* $NetBSD: mainbus.c,v 1.21 1997/06/06 23:14:20 thorpej Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
! 6: *
! 7: * Redistribution and use in source and binary forms, with or without
! 8: * modification, are permitted provided that the following conditions
! 9: * are met:
! 10: * 1. Redistributions of source code must retain the above copyright
! 11: * notice, this list of conditions and the following disclaimer.
! 12: * 2. Redistributions in binary form must reproduce the above copyright
! 13: * notice, this list of conditions and the following disclaimer in the
! 14: * documentation and/or other materials provided with the distribution.
! 15: * 3. All advertising materials mentioning features or use of this software
! 16: * must display the following acknowledgement:
! 17: * This product includes software developed by Christopher G. Demetriou
! 18: * for the NetBSD Project.
! 19: * 4. The name of the author may not be used to endorse or promote products
! 20: * derived from this software without specific prior written permission
! 21: *
! 22: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 23: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 24: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 25: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
! 26: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 27: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 28: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 29: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 30: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
! 31: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 32: */
! 33:
! 34: #include <sys/param.h>
! 35: #include <sys/systm.h>
! 36: #include <sys/device.h>
! 37:
! 38: #include <machine/bus.h>
! 39:
! 40: #include <dev/isa/isavar.h>
! 41: #include <dev/eisa/eisavar.h>
! 42: #include <dev/pci/pcivar.h>
! 43:
! 44: #include <dev/isa/isareg.h> /* for ISA_HOLE_VADDR */
! 45: #include <i386/isa/isa_machdep.h>
! 46:
! 47: #include "pci.h"
! 48: #include "eisa.h"
! 49: #include "isa.h"
! 50: #include "apm.h"
! 51: #include "bios.h"
! 52: #include "mpbios.h"
! 53: #include "acpi.h"
! 54: #include "ipmi.h"
! 55: #include "esm.h"
! 56: #include "vesabios.h"
! 57:
! 58: #include <machine/cpuvar.h>
! 59: #include <machine/i82093var.h>
! 60: #include <machine/mpbiosvar.h>
! 61:
! 62: #if NBIOS > 0
! 63: #include <machine/biosvar.h>
! 64: #endif
! 65:
! 66: #if NACPI > 0
! 67: #include <dev/acpi/acpireg.h>
! 68: #include <dev/acpi/acpivar.h>
! 69: #endif
! 70:
! 71: #if NIPMI > 0
! 72: #include <dev/ipmivar.h>
! 73: #endif
! 74:
! 75: #if NESM > 0
! 76: #include <arch/i386/i386/esmvar.h>
! 77: #endif
! 78:
! 79: #if NVESABIOS > 0
! 80: #include <dev/vesa/vesabiosvar.h>
! 81: #endif
! 82:
! 83: #if 0
! 84: #ifdef SMP /* XXX MULTIPROCESSOR */
! 85: #include <machine/mp.h>
! 86: #endif
! 87: #endif
! 88:
! 89: int mainbus_match(struct device *, void *, void *);
! 90: void mainbus_attach(struct device *, struct device *, void *);
! 91:
! 92: struct cfattach mainbus_ca = {
! 93: sizeof(struct device), mainbus_match, mainbus_attach
! 94: };
! 95:
! 96: struct cfdriver mainbus_cd = {
! 97: NULL, "mainbus", DV_DULL
! 98: };
! 99:
! 100: int mainbus_print(void *, const char *);
! 101:
! 102: union mainbus_attach_args {
! 103: const char *mba_busname; /* first elem of all */
! 104: struct pcibus_attach_args mba_pba;
! 105: struct eisabus_attach_args mba_eba;
! 106: struct isabus_attach_args mba_iba;
! 107: #if NBIOS > 0
! 108: struct bios_attach_args mba_bios;
! 109: #endif
! 110: struct cpu_attach_args mba_caa;
! 111: struct apic_attach_args aaa_caa;
! 112: #if NACPI > 0
! 113: struct acpi_attach_args mba_aaa;
! 114: #endif
! 115: #if NIPMI > 0
! 116: struct ipmi_attach_args mba_iaa;
! 117: #endif
! 118: #if NESM > 0
! 119: struct esm_attach_args mba_eaa;
! 120: #endif
! 121: };
! 122:
! 123: /*
! 124: * This is set when the ISA bus is attached. If it's not set by the
! 125: * time it's checked below, then mainbus attempts to attach an ISA.
! 126: */
! 127: int isa_has_been_seen;
! 128:
! 129: /*
! 130: * Probe for the mainbus; always succeeds.
! 131: */
! 132: int
! 133: mainbus_match(struct device *parent, void *match, void *aux)
! 134: {
! 135: return (1);
! 136: }
! 137:
! 138: /*
! 139: * Attach the mainbus.
! 140: */
! 141: void
! 142: mainbus_attach(struct device *parent, struct device *self, void *aux)
! 143: {
! 144: union mainbus_attach_args mba;
! 145: extern void (*setperf_setup)(struct cpu_info *);
! 146: extern void (*cpusensors_setup)(struct cpu_info *);
! 147:
! 148: printf("\n");
! 149:
! 150: #if NBIOS > 0
! 151: {
! 152: mba.mba_bios.bios_dev = "bios";
! 153: mba.mba_bios.bios_iot = I386_BUS_SPACE_IO;
! 154: mba.mba_bios.bios_memt = I386_BUS_SPACE_MEM;
! 155: config_found(self, &mba.mba_bios, mainbus_print);
! 156: }
! 157: #endif
! 158: #if NACPI > 0
! 159: #if NPCI > 0
! 160: if (pci_mode_detect() != 0)
! 161: #endif
! 162: {
! 163: memset(&mba.mba_aaa, 0, sizeof(mba.mba_aaa));
! 164: mba.mba_aaa.aaa_name = "acpi";
! 165: mba.mba_aaa.aaa_iot = I386_BUS_SPACE_IO;
! 166: mba.mba_aaa.aaa_memt = I386_BUS_SPACE_MEM;
! 167:
! 168: if (acpi_probe(self, aux, &mba.mba_aaa))
! 169: config_found(self, &mba.mba_aaa, mainbus_print);
! 170: }
! 171: #endif
! 172:
! 173: #if NIPMI > 0
! 174: {
! 175: memset(&mba.mba_iaa, 0, sizeof(mba.mba_iaa));
! 176: mba.mba_iaa.iaa_name = "ipmi";
! 177: mba.mba_iaa.iaa_iot = I386_BUS_SPACE_IO;
! 178: mba.mba_iaa.iaa_memt = I386_BUS_SPACE_MEM;
! 179: if (ipmi_probe(&mba.mba_iaa))
! 180: config_found(self, &mba.mba_iaa, mainbus_print);
! 181: }
! 182: #endif
! 183:
! 184: #if NMPBIOS > 0
! 185: if (mpbios_probe(self))
! 186: mpbios_scan(self);
! 187: #endif
! 188:
! 189: if ((cpu_info_primary.ci_flags & CPUF_PRESENT) == 0) {
! 190: struct cpu_attach_args caa;
! 191:
! 192: memset(&caa, 0, sizeof(caa));
! 193: caa.caa_name = "cpu";
! 194: caa.cpu_number = 0;
! 195: caa.cpu_role = CPU_ROLE_SP;
! 196: caa.cpu_func = 0;
! 197: caa.cpu_signature = cpu_id;
! 198: caa.feature_flags = cpu_feature;
! 199:
! 200: config_found(self, &caa, mainbus_print);
! 201: }
! 202:
! 203: #if NACPI > 0
! 204: if (!acpi_hasprocfvs)
! 205: #endif
! 206: {
! 207: if (setperf_setup != NULL)
! 208: setperf_setup(&cpu_info_primary);
! 209: }
! 210:
! 211: #ifdef MULTIPROCESSOR
! 212: mp_setperf_init();
! 213: #endif
! 214:
! 215: if (cpusensors_setup != NULL)
! 216: cpusensors_setup(&cpu_info_primary);
! 217:
! 218: #if NVESABIOS > 0
! 219: if (vbeprobe()) {
! 220: mba.mba_busname = "vesabios";
! 221: config_found(self, &mba.mba_busname, NULL);
! 222: }
! 223: #endif
! 224:
! 225: #if 0
! 226: #ifdef SMP
! 227: if (bios_smpinfo != NULL) {
! 228: struct mp_float *mp = bios_smpinfo;
! 229:
! 230: printf("%s: MP 1.%d configuration %d\n", self->dv_xname,
! 231: mp->revision, mp->feature1);
! 232: }
! 233: #ifdef CPU_DEBUG
! 234: else
! 235: printf ("%s: No MP configuration found.", self->dv_xname);
! 236: #endif
! 237: #endif
! 238: #endif
! 239:
! 240: #if NESM > 0
! 241: {
! 242: memset(&mba.mba_eaa, 0, sizeof(mba.mba_eaa));
! 243: mba.mba_eaa.eaa_name = "esm";
! 244: mba.mba_eaa.eaa_iot = I386_BUS_SPACE_IO;
! 245: mba.mba_eaa.eaa_memt = I386_BUS_SPACE_MEM;
! 246: if (esm_probe(&mba.mba_eaa))
! 247: config_found(self, &mba.mba_eaa, mainbus_print);
! 248: }
! 249: #endif
! 250:
! 251: /*
! 252: * XXX Note also that the presence of a PCI bus should
! 253: * XXX _always_ be checked, and if present the bus should be
! 254: * XXX 'found'. However, because of the structure of the code,
! 255: * XXX that's not currently possible.
! 256: */
! 257: #if NPCI > 0
! 258: if (pci_mode_detect() != 0) {
! 259: mba.mba_pba.pba_busname = "pci";
! 260: mba.mba_pba.pba_iot = I386_BUS_SPACE_IO;
! 261: mba.mba_pba.pba_memt = I386_BUS_SPACE_MEM;
! 262: mba.mba_pba.pba_dmat = &pci_bus_dma_tag;
! 263: mba.mba_pba.pba_domain = pci_ndomains++;
! 264: mba.mba_pba.pba_bus = 0;
! 265: mba.mba_pba.pba_bridgetag = NULL;
! 266: config_found(self, &mba.mba_pba, mainbus_print);
! 267: }
! 268: #endif
! 269:
! 270: if (!bcmp(ISA_HOLE_VADDR(EISA_ID_PADDR), EISA_ID, EISA_ID_LEN)) {
! 271: mba.mba_eba.eba_busname = "eisa";
! 272: mba.mba_eba.eba_iot = I386_BUS_SPACE_IO;
! 273: mba.mba_eba.eba_memt = I386_BUS_SPACE_MEM;
! 274: #if NEISA > 0
! 275: mba.mba_eba.eba_dmat = &eisa_bus_dma_tag;
! 276: #endif
! 277: config_found(self, &mba.mba_eba, mainbus_print);
! 278: }
! 279:
! 280: if (isa_has_been_seen == 0) {
! 281: mba.mba_iba.iba_busname = "isa";
! 282: mba.mba_iba.iba_iot = I386_BUS_SPACE_IO;
! 283: mba.mba_iba.iba_memt = I386_BUS_SPACE_MEM;
! 284: #if NISADMA > 0
! 285: mba.mba_iba.iba_dmat = &isa_bus_dma_tag;
! 286: #endif
! 287: config_found(self, &mba.mba_iba, mainbus_print);
! 288: }
! 289: }
! 290:
! 291: int
! 292: mainbus_print(void *aux, const char *pnp)
! 293: {
! 294: union mainbus_attach_args *mba = aux;
! 295:
! 296: if (pnp)
! 297: printf("%s at %s", mba->mba_busname, pnp);
! 298: if (!strcmp(mba->mba_busname, "pci"))
! 299: printf(" bus %d", mba->mba_pba.pba_bus);
! 300:
! 301: return (UNCONF);
! 302: }
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