Annotation of sys/arch/amd64/amd64/mainbus.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: mainbus.c,v 1.12 2007/05/06 03:37:08 gwk Exp $ */
! 2: /* $NetBSD: mainbus.c,v 1.1 2003/04/26 18:39:29 fvdl 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/pci/pcivar.h>
! 42:
! 43: #include <dev/isa/isareg.h>
! 44:
! 45: #include "pci.h"
! 46: #include "isa.h"
! 47: #include "acpi.h"
! 48: #include "ipmi.h"
! 49: #include "bios.h"
! 50:
! 51: #include <machine/cpuvar.h>
! 52: #include <machine/i82093var.h>
! 53: #include <machine/mpbiosvar.h>
! 54:
! 55: #if NACPI > 0
! 56: #include <dev/acpi/acpireg.h>
! 57: #include <dev/acpi/acpivar.h>
! 58: #endif
! 59:
! 60: #if NIPMI > 0
! 61: #include <dev/ipmivar.h>
! 62: #endif
! 63:
! 64: #if NBIOS > 0
! 65: #include <machine/biosvar.h>
! 66: #endif
! 67:
! 68: int mainbus_match(struct device *, void *, void *);
! 69: void mainbus_attach(struct device *, struct device *, void *);
! 70:
! 71: struct cfattach mainbus_ca = {
! 72: sizeof(struct device), mainbus_match, mainbus_attach
! 73: };
! 74:
! 75: struct cfdriver mainbus_cd = {
! 76: NULL, "mainbus", DV_DULL
! 77: };
! 78:
! 79: int mainbus_print(void *, const char *);
! 80:
! 81: union mainbus_attach_args {
! 82: const char *mba_busname; /* first elem of all */
! 83: struct pcibus_attach_args mba_pba;
! 84: struct isabus_attach_args mba_iba;
! 85: struct cpu_attach_args mba_caa;
! 86: struct apic_attach_args aaa_caa;
! 87: #if NACPI > 0
! 88: struct acpi_attach_args mba_aaa;
! 89: #endif
! 90: #if NIPMI > 0
! 91: struct ipmi_attach_args mba_iaa;
! 92: #endif
! 93: #if NBIOS > 0
! 94: struct bios_attach_args mba_bios;
! 95: #endif
! 96: };
! 97:
! 98: /*
! 99: * This is set when the ISA bus is attached. If it's not set by the
! 100: * time it's checked below, then mainbus attempts to attach an ISA.
! 101: */
! 102: int isa_has_been_seen;
! 103: #if NISA > 0
! 104: struct isabus_attach_args mba_iba = {
! 105: "isa",
! 106: X86_BUS_SPACE_IO, X86_BUS_SPACE_MEM,
! 107: #if NISADMA > 0
! 108: &isa_bus_dma_tag
! 109: #else
! 110: NULL
! 111: #endif
! 112: };
! 113: #endif
! 114:
! 115: #if defined(MPBIOS) || defined(MPACPI)
! 116: struct mp_bus *mp_busses;
! 117: int mp_nbus;
! 118: struct mp_intr_map *mp_intrs;
! 119: int mp_nintr;
! 120:
! 121: struct mp_bus *mp_isa_bus;
! 122: struct mp_bus *mp_eisa_bus;
! 123:
! 124: #ifdef MPVERBOSE
! 125: int mp_verbose = 1;
! 126: #else
! 127: int mp_verbose = 0;
! 128: #endif
! 129: #endif
! 130:
! 131:
! 132: /*
! 133: * Probe for the mainbus; always succeeds.
! 134: */
! 135: int
! 136: mainbus_match(struct device *parent, void *match, void *aux)
! 137: {
! 138: return (1);
! 139: }
! 140:
! 141: /*
! 142: * Attach the mainbus.
! 143: */
! 144: void
! 145: mainbus_attach(struct device *parent, struct device *self, void *aux)
! 146: {
! 147: #if NPCI > 0
! 148: union mainbus_attach_args mba;
! 149: #endif
! 150: #ifdef MPBIOS
! 151: int mpbios_present = 0;
! 152: #endif
! 153: extern void (*setperf_setup)(struct cpu_info *);
! 154:
! 155: printf("\n");
! 156:
! 157: #if NPCI > 0
! 158: pci_mode = pci_mode_detect();
! 159: #endif
! 160:
! 161: #if NBIOS > 0
! 162: {
! 163: mba.mba_bios.bios_dev = "bios";
! 164: mba.mba_bios.bios_iot = X86_BUS_SPACE_IO;
! 165: mba.mba_bios.bios_memt = X86_BUS_SPACE_MEM;
! 166: config_found(self, &mba.mba_bios, mainbus_print);
! 167: }
! 168: #endif
! 169:
! 170: #if NACPI > 0
! 171: #if NPCI > 0
! 172: if (pci_mode != 0)
! 173: #endif
! 174: {
! 175: memset(&mba.mba_aaa, 0, sizeof(mba.mba_aaa));
! 176: mba.mba_aaa.aaa_name = "acpi";
! 177: mba.mba_aaa.aaa_iot = X86_BUS_SPACE_IO;
! 178: mba.mba_aaa.aaa_memt = X86_BUS_SPACE_MEM;
! 179:
! 180: config_found(self, &mba.mba_aaa, mainbus_print);
! 181: }
! 182: #endif
! 183:
! 184: #if NIPMI > 0
! 185: {
! 186: memset(&mba.mba_iaa, 0, sizeof(mba.mba_iaa));
! 187: mba.mba_iaa.iaa_name = "ipmi";
! 188: mba.mba_iaa.iaa_iot = X86_BUS_SPACE_IO;
! 189: mba.mba_iaa.iaa_memt = X86_BUS_SPACE_MEM;
! 190: if (ipmi_probe(&mba.mba_iaa))
! 191: config_found(self, &mba.mba_iaa, mainbus_print);
! 192: }
! 193: #endif
! 194:
! 195: #ifdef MPBIOS
! 196: mpbios_present = mpbios_probe(self);
! 197: #endif
! 198:
! 199: #ifdef MPBIOS
! 200: if (mpbios_present)
! 201: mpbios_scan(self);
! 202: else
! 203: #endif
! 204:
! 205: if ((cpu_info_primary.ci_flags & CPUF_PRESENT) == 0) {
! 206: struct cpu_attach_args caa;
! 207:
! 208: memset(&caa, 0, sizeof(caa));
! 209: caa.caa_name = "cpu";
! 210: caa.cpu_number = 0;
! 211: caa.cpu_role = CPU_ROLE_SP;
! 212: caa.cpu_func = 0;
! 213:
! 214: config_found(self, &caa, mainbus_print);
! 215: }
! 216:
! 217: #if NACPI > 0
! 218: if (!acpi_hasprocfvs)
! 219: #endif
! 220: {
! 221: if (setperf_setup != NULL)
! 222: setperf_setup(&cpu_info_primary);
! 223: }
! 224:
! 225: #ifdef MULTIPROCESSOR
! 226: mp_setperf_init();
! 227: #endif
! 228:
! 229: #if NPCI > 0
! 230: if (pci_mode != 0) {
! 231: mba.mba_pba.pba_busname = "pci";
! 232: mba.mba_pba.pba_iot = X86_BUS_SPACE_IO;
! 233: mba.mba_pba.pba_memt = X86_BUS_SPACE_MEM;
! 234: mba.mba_pba.pba_dmat = &pci_bus_dma_tag;
! 235: mba.mba_pba.pba_domain = pci_ndomains++;
! 236: mba.mba_pba.pba_bus = 0;
! 237: mba.mba_pba.pba_bridgetag = NULL;
! 238: mba.mba_pba.pba_pc = NULL;
! 239: config_found(self, &mba.mba_pba, mainbus_print);
! 240: }
! 241: #endif
! 242:
! 243: #if NISA > 0
! 244: if (isa_has_been_seen == 0)
! 245: config_found(self, &mba_iba, mainbus_print);
! 246: #endif
! 247:
! 248: }
! 249:
! 250: int
! 251: mainbus_print(void *aux, const char *pnp)
! 252: {
! 253: union mainbus_attach_args *mba = aux;
! 254:
! 255: if (pnp)
! 256: printf("%s at %s", mba->mba_busname, pnp);
! 257: if (strcmp(mba->mba_busname, "pci") == 0)
! 258: printf(" bus %d", mba->mba_pba.pba_bus);
! 259:
! 260: return (UNCONF);
! 261: }
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