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 <fcntl.h>
  25 #include <sys/mman.h>
  26 #include "inteltool.h"
  27
  28 static const struct {
  29         uint16_t vendor_id, device_id;
  30         char *name;
  31 } supported_chips_list[] = {
  32         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845, "i845" },
  33         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82945P, "i945P" },
  34         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82945GM, "i945GM" },
  35         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PM965, "PM965" },
  36         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82975X, "i975X" },
  37         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_X58, "X58" },
  38         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10R, "ICH10R" },
  39         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8M, "ICH8-M" },
  40         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7MDH, "ICH7-M DH" },
  41         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7M, "ICH7-M" },
  42         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7, "ICH7" },
  43         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7DH, "ICH7DH" },
  44         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH4M, "ICH4-M" },
  45         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH4, "ICH4" },
  46         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH2, "ICH2" },
  47         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH0, "ICH0" },
  48         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH, "ICH" }
  49 };
  50
  51 #ifndef DARWIN
  52 static int fd_mem;
  53
  54 void *map_physical(unsigned long phys_addr, int len)
  55 {
  56         void *virt_addr;
  57
  58         virt_addr = mmap(0, len, PROT_WRITE | PROT_READ, MAP_SHARED,
  59                     fd_mem, (off_t) phys_addr);
  60
  61         if (virt_addr == MAP_FAILED) {
  62                 printf("Error mapping physical memory 0x%08lx[0x%x]\n", phys_addr, len);
  63                 return NULL;
  64         }
  65
  66         return virt_addr;
  67 }
  68
  69 void unmap_physical(void *virt_addr, int len)
  70 {
  71         munmap(virt_addr, len);
  72 }
  73 #endif
  74
  75 void print_version(void)
  76 {
  77         printf("inteltool v%s -- ", INTELTOOL_VERSION);
  78         printf("Copyright (C) 2008 coresystems GmbH\n\n");
  79         printf(
  80     "This program is free software: you can redistribute it and/or modify\n"
  81     "it under the terms of the GNU General Public License as published by\n"
  82     "the Free Software Foundation, version 2 of the License.\n\n"
  83     "This program is distributed in the hope that it will be useful,\n"
  84     "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
  85     "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
  86     "GNU General Public License for more details.\n\n"
  87     "You should have received a copy of the GNU General Public License\n"
  88     "along with this program.  If not, see <http://www.gnu.org/licenses/>.\n\n");
  89 }
  90
  91 void print_usage(const char *name)
  92 {
  93         printf("usage: %s [-vh?grpmedPMa]\n", name);
  94         printf("\n"
  95              "   -v | --version:                   print the version\n"
  96              "   -h | --help:                      print this help\n\n"
  97              "   -g | --gpio:                      dump soutbridge GPIO registers\n"
  98              "   -r | --rcba:                      dump soutbridge RCBA registers\n"
  99              "   -p | --pmbase:                    dump soutbridge Power Management registers\n\n"
 100              "   -m | --mchbar:                    dump northbridge Memory Controller registers\n"
 101              "   -e | --epbar:                     dump northbridge EPBAR registers\n"
 102              "   -d | --dmibar:                    dump northbridge DMIBAR registers\n"
 103              "   -P | --pciexpress:                dump northbridge PCIEXBAR registers\n\n"
 104              "   -M | --msrs:                      dump CPU MSRs\n"
 105              "   -a | --all:                       dump all known registers\n"
 106              "\n");
 107         exit(1);
 108 }
 109
 110 int main(int argc, char *argv[])
 111 {
 112         struct pci_access *pacc;
 113         struct pci_dev *sb, *nb;
 114         int i, opt, option_index = 0;
 115         unsigned int id;
 116
 117         char *sbname = "unknown", *nbname = "unknown";
 118
 119         int dump_gpios = 0, dump_mchbar = 0, dump_rcba = 0;
 120         int dump_pmbase = 0, dump_epbar = 0, dump_dmibar = 0;
 121         int dump_pciexbar = 0, dump_coremsrs = 0;
 122
 123         static struct option long_options[] = {
 124                 {"version", 0, 0, 'v'},
 125                 {"help", 0, 0, 'h'},
 126                 {"gpios", 0, 0, 'g'},
 127                 {"mchbar", 0, 0, 'm'},
 128                 {"rcba", 0, 0, 'r'},
 129                 {"pmbase", 0, 0, 'p'},
 130                 {"epbar", 0, 0, 'e'},
 131                 {"dmibar", 0, 0, 'd'},
 132                 {"pciexpress", 0, 0, 'P'},
 133                 {"msrs", 0, 0, 'M'},
 134                 {"all", 0, 0, 'a'},
 135                 {0, 0, 0, 0}
 136         };
 137
 138         while ((opt = getopt_long(argc, argv, "vh?grpmedPMa",
 139                                   long_options, &option_index)) != EOF) {
 140                 switch (opt) {
 141                 case 'v':
 142                         print_version();
 143                         exit(0);
 144                         break;
 145                 case 'g':
 146                         dump_gpios = 1;
 147                         break;
 148                 case 'm':
 149                         dump_mchbar = 1;
 150                         break;
 151                 case 'r':
 152                         dump_rcba = 1;
 153                         break;
 154                 case 'p':
 155                         dump_pmbase = 1;
 156                         break;
 157                 case 'e':
 158                         dump_epbar = 1;
 159                         break;
 160                 case 'd':
 161                         dump_dmibar = 1;
 162                         break;
 163                 case 'P':
 164                         dump_pciexbar = 1;
 165                         break;
 166                 case 'M':
 167                         dump_coremsrs = 1;
 168                         break;
 169                 case 'a':
 170                         dump_gpios = 1;
 171                         dump_mchbar = 1;
 172                         dump_rcba = 1;
 173                         dump_pmbase = 1;
 174                         dump_epbar = 1;
 175                         dump_dmibar = 1;
 176                         dump_pciexbar = 1;
 177                         dump_coremsrs = 1;
 178                         break;
 179                 case 'h':
 180                 case '?':
 181                 default:
 182                         print_usage(argv[0]);
 183                         exit(0);
 184                         break;
 185                 }
 186         }
 187
 188         if (iopl(3)) {
 189                 printf("You need to be root.\n");
 190                 exit(1);
 191         }
 192
 193 #ifndef DARWIN
 194         if ((fd_mem = open("/dev/mem", O_RDWR)) < 0) {
 195                 perror("Can not open /dev/mem");
 196                 exit(1);
 197         }
 198 #endif
 199
 200         pacc = pci_alloc();
 201         pci_init(pacc);
 202         pci_scan_bus(pacc);
 203
 204         /* Find the required devices */
 205
 206         sb = pci_get_dev(pacc, 0, 0, 0x1f, 0);
 207         if (!sb) {
 208                 printf("No southbridge found.\n");
 209                 exit(1);
 210         }
 211
 212         pci_fill_info(sb, PCI_FILL_IDENT|PCI_FILL_BASES|PCI_FILL_SIZES|PCI_FILL_CLASS);
 213
 214         if (sb->vendor_id != PCI_VENDOR_ID_INTEL) {
 215                 printf("Not an Intel(R) southbridge.\n");
 216                 exit(1);
 217         }
 218
 219         nb = pci_get_dev(pacc, 0, 0, 0x00, 0);
 220         if (!nb) {
 221                 printf("No northbridge found.\n");
 222                 exit(1);
 223         }
 224
 225         pci_fill_info(nb, PCI_FILL_IDENT|PCI_FILL_BASES|PCI_FILL_SIZES|PCI_FILL_CLASS);
 226
 227         if (nb->vendor_id != PCI_VENDOR_ID_INTEL) {
 228                 printf("Not an Intel(R) northbridge.\n");
 229                 exit(1);
 230         }
 231
 232         id = cpuid(1);
 233         printf("Intel CPU: Family %x, Model %x\n",
 234                         (id >> 8) & 0xf, (id >> 4) & 0xf);
 235
 236         /* Determine names */
 237         for (i = 0; i < ARRAY_SIZE(supported_chips_list); i++)
 238                 if (nb->device_id == supported_chips_list[i].device_id)
 239                         nbname = supported_chips_list[i].name;
 240         for (i = 0; i < ARRAY_SIZE(supported_chips_list); i++)
 241                 if (sb->device_id == supported_chips_list[i].device_id)
 242                         sbname = supported_chips_list[i].name;
 243
 244         printf("Intel Northbridge: %04x:%04x (%s)\n",
 245                 nb->vendor_id, nb->device_id, nbname);
 246
 247         printf("Intel Southbridge: %04x:%04x (%s)\n",
 248                 sb->vendor_id, sb->device_id, sbname);
 249
 250         /* Now do the deed */
 251
 252         if (dump_gpios) {
 253                 print_gpios(sb);
 254                 printf("\n\n");
 255         }
 256
 257         if (dump_rcba) {
 258                 print_rcba(sb);
 259                 printf("\n\n");
 260         }
 261
 262         if (dump_pmbase) {
 263                 print_pmbase(sb);
 264                 printf("\n\n");
 265         }
 266
 267         if (dump_mchbar) {
 268                 print_mchbar(nb);
 269                 printf("\n\n");
 270         }
 271
 272         if (dump_epbar) {
 273                 print_epbar(nb);
 274                 printf("\n\n");
 275         }
 276
 277         if (dump_dmibar) {
 278                 print_dmibar(nb);
 279                 printf("\n\n");
 280         }
 281
 282         if (dump_pciexbar) {
 283                 print_pciexbar(nb);
 284                 printf("\n\n");
 285         }
 286
 287         if (dump_coremsrs) {
 288                 print_intel_core_msrs();
 289                 printf("\n\n");
 290         }
 291
 292         /* Clean up */
 293         pci_free_dev(nb);
 294         pci_free_dev(sb);
 295         pci_cleanup(pacc);
 296
 297         return 0;
 298 }