util/inteltool/inteltool.c

   1 /*
   2  * inteltool - dump all registers on an Intel CPU + chipset based system.
   3  *
   4  * Copyright (C) 2008 by coresystems GmbH
   5  *  written by Stefan Reinauer <stepan@coresystems.de>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; version 2 of the License.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  */
  20
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <getopt.h>
  24 #include <sys/io.h>
  25 #include <fcntl.h>
  26
  27 #include "inteltool.h"
  28
  29 static const struct {
  30         uint16_t vendor_id, device_id;
  31         char *name;
  32 } supported_chips_list[] = {
  33         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845, "i845" },
  34         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82945P, "i945P" },
  35         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82945GM, "i945GM" },
  36         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7MDH, "ICH7-M DH" },
  37         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7M, "ICH7-M" },
  38         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7, "ICH7" },
  39         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7DH, "ICH7DH" },
  40         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH4M, "ICH4-M" },
  41         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH4, "ICH4" },
  42         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH2, "ICH2" },
  43         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH0, "ICH0" },
  44         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH, "ICH" }
  45 };
  46
  47 int fd_mem;
  48
  49 void print_version(void)
  50 {
  51         printf("inteltool v%s -- ", INTELTOOL_VERSION);
  52         printf("Copyright (C) 2008 coresystems GmbH\n\n");
  53         printf(
  54     "This program is free software: you can redistribute it and/or modify\n"
  55     "it under the terms of the GNU General Public License as published by\n"
  56     "the Free Software Foundation, version 2 of the License.\n\n"
  57     "This program is distributed in the hope that it will be useful,\n"
  58     "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
  59     "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
  60     "GNU General Public License for more details.\n\n"
  61     "You should have received a copy of the GNU General Public License\n"
  62     "along with this program.  If not, see <http://www.gnu.org/licenses/>.\n\n");
  63 }
  64
  65 void print_usage(const char *name)
  66 {
  67         printf("usage: %s [-vh?grpmedPMa]\n", name);
  68         printf("\n"
  69              "   -v | --version:                   print the version\n"
  70              "   -h | --help:                      print this help\n\n"
  71              "   -g | --gpio:                      dump soutbridge GPIO registers\n"
  72              "   -r | --rcba:                      dump soutbridge RCBA registers\n"
  73              "   -p | --pmbase:                    dump soutbridge Power Management registers\n\n"
  74              "   -m | --mchbar:                    dump northbridge Memory Controller registers\n"
  75              "   -e | --epbar:                     dump northbridge EPBAR registers\n"
  76              "   -d | --dmibar:                    dump northbridge DMIBAR registers\n"
  77              "   -P | --pciexpress:                dump northbridge PCIEXBAR registers\n\n"
  78              "   -M | --msrs:                      dump CPU MSRs\n"
  79              "   -a | --all:                       dump all known registers\n"
  80              "\n");
  81         exit(1);
  82 }
  83
  84 int main(int argc, char *argv[])
  85 {
  86         struct pci_access *pacc;
  87         struct pci_dev *sb, *nb;
  88         int i, opt, option_index = 0;
  89         unsigned int id;
  90
  91         char *sbname = "unknown", *nbname = "unknown";
  92
  93         int dump_gpios = 0, dump_mchbar = 0, dump_rcba = 0;
  94         int dump_pmbase = 0, dump_epbar = 0, dump_dmibar = 0;
  95         int dump_pciexbar = 0, dump_coremsrs = 0;
  96
  97         static struct option long_options[] = {
  98                 {"version", 0, 0, 'v'},
  99                 {"help", 0, 0, 'h'},
 100                 {"gpios", 0, 0, 'g'},
 101                 {"mchbar", 0, 0, 'm'},
 102                 {"rcba", 0, 0, 'r'},
 103                 {"pmbase", 0, 0, 'p'},
 104                 {"epbar", 0, 0, 'e'},
 105                 {"dmibar", 0, 0, 'd'},
 106                 {"pciexpress", 0, 0, 'P'},
 107                 {"msrs", 0, 0, 'M'},
 108                 {"all", 0, 0, 'a'},
 109                 {0, 0, 0, 0}
 110         };
 111
 112         while ((opt = getopt_long(argc, argv, "vh?grpmedPMa",
 113                                   long_options, &option_index)) != EOF) {
 114                 switch (opt) {
 115                 case 'v':
 116                         print_version();
 117                         exit(0);
 118                         break;
 119                 case 'g':
 120                         dump_gpios = 1;
 121                         break;
 122                 case 'm':
 123                         dump_mchbar = 1;
 124                         break;
 125                 case 'r':
 126                         dump_rcba = 1;
 127                         break;
 128                 case 'p':
 129                         dump_pmbase = 1;
 130                         break;
 131                 case 'e':
 132                         dump_epbar = 1;
 133                         break;
 134                 case 'd':
 135                         dump_dmibar = 1;
 136                         break;
 137                 case 'P':
 138                         dump_pciexbar = 1;
 139                         break;
 140                 case 'M':
 141                         dump_coremsrs = 1;
 142                         break;
 143                 case 'a':
 144                         dump_gpios = 1;
 145                         dump_mchbar = 1;
 146                         dump_rcba = 1;
 147                         dump_pmbase = 1;
 148                         dump_epbar = 1;
 149                         dump_dmibar = 1;
 150                         dump_pciexbar = 1;
 151                         dump_coremsrs = 1;
 152                         break;
 153                 case 'h':
 154                 case '?':
 155                 default:
 156                         print_usage(argv[0]);
 157                         exit(0);
 158                         break;
 159                 }
 160         }
 161
 162         if (iopl(3)) {
 163                 printf("You need to be root.\n");
 164                 exit(1);
 165         }
 166
 167         if ((fd_mem = open("/dev/mem", O_RDWR)) < 0) {
 168                 perror("Can not open /dev/mem");
 169                 exit(1);
 170         }
 171
 172         pacc = pci_alloc();
 173         pci_init(pacc);
 174         pci_scan_bus(pacc);
 175
 176         /* Find the required devices */
 177
 178         sb = pci_get_dev(pacc, 0, 0, 0x1f, 0);
 179         if (!sb) {
 180                 printf("No southbridge found.\n");
 181                 exit(1);
 182         }
 183
 184         pci_fill_info(sb, PCI_FILL_IDENT|PCI_FILL_BASES|PCI_FILL_SIZES|PCI_FILL_CLASS);
 185
 186         if (sb->vendor_id != PCI_VENDOR_ID_INTEL) {
 187                 printf("Not an Intel(R) southbridge.\n");
 188                 exit(1);
 189         }
 190
 191         nb = pci_get_dev(pacc, 0, 0, 0x00, 0);
 192         if (!nb) {
 193                 printf("No northbridge found.\n");
 194                 exit(1);
 195         }
 196
 197         pci_fill_info(nb, PCI_FILL_IDENT|PCI_FILL_BASES|PCI_FILL_SIZES|PCI_FILL_CLASS);
 198
 199         if (nb->vendor_id != PCI_VENDOR_ID_INTEL) {
 200                 printf("Not an Intel(R) northbridge.\n");
 201                 exit(1);
 202         }
 203
 204         id = cpuid(1);
 205         printf("Intel CPU: Family %x, Model %x\n",
 206                         (id >> 8) & 0xf, (id >> 4) & 0xf);
 207
 208         /* Determine names */
 209         for (i = 0; i < ARRAY_SIZE(supported_chips_list); i++)
 210                 if (nb->device_id == supported_chips_list[i].device_id)
 211                         nbname = supported_chips_list[i].name;
 212         for (i = 0; i < ARRAY_SIZE(supported_chips_list); i++)
 213                 if (sb->device_id == supported_chips_list[i].device_id)
 214                         sbname = supported_chips_list[i].name;
 215
 216         printf("Intel Northbridge: %04x:%04x (%s)\n",
 217                 nb->vendor_id, nb->device_id, nbname);
 218
 219         printf("Intel Southbridge: %04x:%04x (%s)\n",
 220                 sb->vendor_id, sb->device_id, sbname);
 221
 222         /* Now do the deed */
 223
 224         if (dump_gpios) {
 225                 print_gpios(sb);
 226                 printf("\n\n");
 227         }
 228
 229         if (dump_rcba) {
 230                 print_rcba(sb);
 231                 printf("\n\n");
 232         }
 233
 234         if (dump_pmbase) {
 235                 print_pmbase(sb);
 236                 printf("\n\n");
 237         }
 238
 239         if (dump_mchbar) {
 240                 print_mchbar(nb);
 241                 printf("\n\n");
 242         }
 243
 244         if (dump_epbar) {
 245                 print_epbar(nb);
 246                 printf("\n\n");
 247         }
 248
 249         if (dump_dmibar) {
 250                 print_dmibar(nb);
 251                 printf("\n\n");
 252         }
 253
 254         if (dump_pciexbar) {
 255                 print_pciexbar(nb);
 256                 printf("\n\n");
 257         }
 258
 259         if (dump_coremsrs) {
 260                 print_intel_core_msrs();
 261                 printf("\n\n");
 262         }
 263
 264         /* Clean up */
 265         pci_free_dev(nb);
 266         pci_free_dev(sb);
 267         pci_cleanup(pacc);
 268
 269         return 0;
 270 }