root/arch/i386/i386/mainbus.c

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DEFINITIONS

This source file includes following definitions.
  1. mainbus_match
  2. mainbus_attach
  3. mainbus_print

    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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