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_82810, "i810" },
  33         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810DC, "i810-DC100" },
  34         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845, "i845" },
  35         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82945P, "i945P" },
  36         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82945GM, "i945GM" },
  37         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PM965, "PM965" },
  38         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82975X, "i975X" },
  39         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_X58, "X58" },
  40         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10R, "ICH10R" },
  41         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8M, "ICH8-M" },
  42         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7MDH, "ICH7-M DH" },
  43         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7M, "ICH7-M" },
  44         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7, "ICH7" },
  45         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7DH, "ICH7DH" },
  46         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH4M, "ICH4-M" },
  47         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH4, "ICH4" },
  48         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH2, "ICH2" },
  49         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH0, "ICH0" },
  50         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH, "ICH" }
  51 };
  52
  53 #ifndef DARWIN
  54 static int fd_mem;
  55
  56 void *map_physical(unsigned long phys_addr, int len)
  57 {
  58         void *virt_addr;
  59
  60         virt_addr = mmap(0, len, PROT_WRITE | PROT_READ, MAP_SHARED,
  61                     fd_mem, (off_t) phys_addr);
  62
  63         if (virt_addr == MAP_FAILED) {
  64                 printf("Error mapping physical memory 0x%08lx[0x%x]\n", phys_addr, len);
  65                 return NULL;
  66         }
  67
  68         return virt_addr;
  69 }
  70
  71 void unmap_physical(void *virt_addr, int len)
  72 {
  73         munmap(virt_addr, len);
  74 }
  75 #endif
  76
  77 void print_version(void)
  78 {
  79         printf("inteltool v%s -- ", INTELTOOL_VERSION);
  80         printf("Copyright (C) 2008 coresystems GmbH\n\n");
  81         printf(
  82     "This program is free software: you can redistribute it and/or modify\n"
  83     "it under the terms of the GNU General Public License as published by\n"
  84     "the Free Software Foundation, version 2 of the License.\n\n"
  85     "This program is distributed in the hope that it will be useful,\n"
  86     "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
  87     "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
  88     "GNU General Public License for more details.\n\n"
  89     "You should have received a copy of the GNU General Public License\n"
  90     "along with this program.  If not, see <http://www.gnu.org/licenses/>.\n\n");
  91 }
  92
  93 void print_usage(const char *name)
  94 {
  95         printf("usage: %s [-vh?grpmedPMa]\n", name);
  96         printf("\n"
  97              "   -v | --version:                   print the version\n"
  98              "   -h | --help:                      print this help\n\n"
  99              "   -g | --gpio:                      dump soutbridge GPIO registers\n"
 100              "   -r | --rcba:                      dump soutbridge RCBA registers\n"
 101              "   -p | --pmbase:                    dump soutbridge Power Management registers\n\n"
 102              "   -m | --mchbar:                    dump northbridge Memory Controller registers\n"
 103              "   -e | --epbar:                     dump northbridge EPBAR registers\n"
 104              "   -d | --dmibar:                    dump northbridge DMIBAR registers\n"
 105              "   -P | --pciexpress:                dump northbridge PCIEXBAR registers\n\n"
 106              "   -M | --msrs:                      dump CPU MSRs\n"
 107              "   -a | --all:                       dump all known registers\n"
 108              "\n");
 109         exit(1);
 110 }
 111
 112 int main(int argc, char *argv[])
 113 {
 114         struct pci_access *pacc;
 115         struct pci_dev *sb, *nb;
 116         int i, opt, option_index = 0;
 117         unsigned int id;
 118
 119         char *sbname = "unknown", *nbname = "unknown";
 120
 121         int dump_gpios = 0, dump_mchbar = 0, dump_rcba = 0;
 122         int dump_pmbase = 0, dump_epbar = 0, dump_dmibar = 0;
 123         int dump_pciexbar = 0, dump_coremsrs = 0;
 124
 125         static struct option long_options[] = {
 126                 {"version", 0, 0, 'v'},
 127                 {"help", 0, 0, 'h'},
 128                 {"gpios", 0, 0, 'g'},
 129                 {"mchbar", 0, 0, 'm'},
 130                 {"rcba", 0, 0, 'r'},
 131                 {"pmbase", 0, 0, 'p'},
 132                 {"epbar", 0, 0, 'e'},
 133                 {"dmibar", 0, 0, 'd'},
 134                 {"pciexpress", 0, 0, 'P'},
 135                 {"msrs", 0, 0, 'M'},
 136                 {"all", 0, 0, 'a'},
 137                 {0, 0, 0, 0}
 138         };
 139
 140         while ((opt = getopt_long(argc, argv, "vh?grpmedPMa",
 141                                   long_options, &option_index)) != EOF) {
 142                 switch (opt) {
 143                 case 'v':
 144                         print_version();
 145                         exit(0);
 146                         break;
 147                 case 'g':
 148                         dump_gpios = 1;
 149                         break;
 150                 case 'm':
 151                         dump_mchbar = 1;
 152                         break;
 153                 case 'r':
 154                         dump_rcba = 1;
 155                         break;
 156                 case 'p':
 157                         dump_pmbase = 1;
 158                         break;
 159                 case 'e':
 160                         dump_epbar = 1;
 161                         break;
 162                 case 'd':
 163                         dump_dmibar = 1;
 164                         break;
 165                 case 'P':
 166                         dump_pciexbar = 1;
 167                         break;
 168                 case 'M':
 169                         dump_coremsrs = 1;
 170                         break;
 171                 case 'a':
 172                         dump_gpios = 1;
 173                         dump_mchbar = 1;
 174                         dump_rcba = 1;
 175                         dump_pmbase = 1;
 176                         dump_epbar = 1;
 177                         dump_dmibar = 1;
 178                         dump_pciexbar = 1;
 179                         dump_coremsrs = 1;
 180                         break;
 181                 case 'h':
 182                 case '?':
 183                 default:
 184                         print_usage(argv[0]);
 185                         exit(0);
 186                         break;
 187                 }
 188         }
 189
 190         if (iopl(3)) {
 191                 printf("You need to be root.\n");
 192                 exit(1);
 193         }
 194
 195 #ifndef DARWIN
 196         if ((fd_mem = open("/dev/mem", O_RDWR)) < 0) {
 197                 perror("Can not open /dev/mem");
 198                 exit(1);
 199         }
 200 #endif
 201
 202         pacc = pci_alloc();
 203         pci_init(pacc);
 204         pci_scan_bus(pacc);
 205
 206         /* Find the required devices */
 207
 208         sb = pci_get_dev(pacc, 0, 0, 0x1f, 0);
 209         if (!sb) {
 210                 printf("No southbridge found.\n");
 211                 exit(1);
 212         }
 213
 214         pci_fill_info(sb, PCI_FILL_IDENT|PCI_FILL_BASES|PCI_FILL_SIZES|PCI_FILL_CLASS);
 215
 216         if (sb->vendor_id != PCI_VENDOR_ID_INTEL) {
 217                 printf("Not an Intel(R) southbridge.\n");
 218                 exit(1);
 219         }
 220
 221         nb = pci_get_dev(pacc, 0, 0, 0x00, 0);
 222         if (!nb) {
 223                 printf("No northbridge found.\n");
 224                 exit(1);
 225         }
 226
 227         pci_fill_info(nb, PCI_FILL_IDENT|PCI_FILL_BASES|PCI_FILL_SIZES|PCI_FILL_CLASS);
 228
 229         if (nb->vendor_id != PCI_VENDOR_ID_INTEL) {
 230                 printf("Not an Intel(R) northbridge.\n");
 231                 exit(1);
 232         }
 233
 234         id = cpuid(1);
 235         printf("Intel CPU: Family %x, Model %x\n",
 236                         (id >> 8) & 0xf, (id >> 4) & 0xf);
 237
 238         /* Determine names */
 239         for (i = 0; i < ARRAY_SIZE(supported_chips_list); i++)
 240                 if (nb->device_id == supported_chips_list[i].device_id)
 241                         nbname = supported_chips_list[i].name;
 242         for (i = 0; i < ARRAY_SIZE(supported_chips_list); i++)
 243                 if (sb->device_id == supported_chips_list[i].device_id)
 244                         sbname = supported_chips_list[i].name;
 245
 246         printf("Intel Northbridge: %04x:%04x (%s)\n",
 247                 nb->vendor_id, nb->device_id, nbname);
 248
 249         printf("Intel Southbridge: %04x:%04x (%s)\n",
 250                 sb->vendor_id, sb->device_id, sbname);
 251
 252         /* Now do the deed */
 253
 254         if (dump_gpios) {
 255                 print_gpios(sb);
 256                 printf("\n\n");
 257         }
 258
 259         if (dump_rcba) {
 260                 print_rcba(sb);
 261                 printf("\n\n");
 262         }
 263
 264         if (dump_pmbase) {
 265                 print_pmbase(sb);
 266                 printf("\n\n");
 267         }
 268
 269         if (dump_mchbar) {
 270                 print_mchbar(nb);
 271                 printf("\n\n");
 272         }
 273
 274         if (dump_epbar) {
 275                 print_epbar(nb);
 276                 printf("\n\n");
 277         }
 278
 279         if (dump_dmibar) {
 280                 print_dmibar(nb);
 281                 printf("\n\n");
 282         }
 283
 284         if (dump_pciexbar) {
 285                 print_pciexbar(nb);
 286                 printf("\n\n");
 287         }
 288
 289         if (dump_coremsrs) {
 290                 print_intel_core_msrs();
 291                 printf("\n\n");
 292         }
 293
 294         /* Clean up */
 295         pci_free_dev(nb);
 296         pci_free_dev(sb);
 297         pci_cleanup(pacc);
 298
 299         return 0;
 300 }