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_ICH8M, "ICH8-M" },
  38         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7MDH, "ICH7-M DH" },
  39         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7M, "ICH7-M" },
  40         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7, "ICH7" },
  41         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7DH, "ICH7DH" },
  42         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH4M, "ICH4-M" },
  43         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH4, "ICH4" },
  44         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH2, "ICH2" },
  45         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH0, "ICH0" },
  46         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH, "ICH" }
  47 };
  48
  49 #ifndef DARWIN
  50 static int fd_mem;
  51
  52 void *map_physical(unsigned long phys_addr, int len)
  53 {
  54         void *virt_addr;
  55
  56         virt_addr = mmap(0, len, PROT_WRITE | PROT_READ, MAP_SHARED,
  57                     fd_mem, (off_t) phys_addr);
  58
  59         if (virt_addr == MAP_FAILED) {
  60                 printf("Error mapping physical memory 0x%08lx[0x%x]\n", phys_addr, len);
  61                 return NULL;
  62         }
  63
  64         return virt_addr;
  65 }
  66
  67 void unmap_physical(void *virt_addr, int len)
  68 {
  69         munmap(virt_addr, len);
  70 }
  71 #endif
  72
  73 void print_version(void)
  74 {
  75         printf("inteltool v%s -- ", INTELTOOL_VERSION);
  76         printf("Copyright (C) 2008 coresystems GmbH\n\n");
  77         printf(
  78     "This program is free software: you can redistribute it and/or modify\n"
  79     "it under the terms of the GNU General Public License as published by\n"
  80     "the Free Software Foundation, version 2 of the License.\n\n"
  81     "This program is distributed in the hope that it will be useful,\n"
  82     "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
  83     "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
  84     "GNU General Public License for more details.\n\n"
  85     "You should have received a copy of the GNU General Public License\n"
  86     "along with this program.  If not, see <http://www.gnu.org/licenses/>.\n\n");
  87 }
  88
  89 void print_usage(const char *name)
  90 {
  91         printf("usage: %s [-vh?grpmedPMa]\n", name);
  92         printf("\n"
  93              "   -v | --version:                   print the version\n"
  94              "   -h | --help:                      print this help\n\n"
  95              "   -g | --gpio:                      dump soutbridge GPIO registers\n"
  96              "   -r | --rcba:                      dump soutbridge RCBA registers\n"
  97              "   -p | --pmbase:                    dump soutbridge Power Management registers\n\n"
  98              "   -m | --mchbar:                    dump northbridge Memory Controller registers\n"
  99              "   -e | --epbar:                     dump northbridge EPBAR registers\n"
 100              "   -d | --dmibar:                    dump northbridge DMIBAR registers\n"
 101              "   -P | --pciexpress:                dump northbridge PCIEXBAR registers\n\n"
 102              "   -M | --msrs:                      dump CPU MSRs\n"
 103              "   -a | --all:                       dump all known registers\n"
 104              "\n");
 105         exit(1);
 106 }
 107
 108 int main(int argc, char *argv[])
 109 {
 110         struct pci_access *pacc;
 111         struct pci_dev *sb, *nb;
 112         int i, opt, option_index = 0;
 113         unsigned int id;
 114
 115         char *sbname = "unknown", *nbname = "unknown";
 116
 117         int dump_gpios = 0, dump_mchbar = 0, dump_rcba = 0;
 118         int dump_pmbase = 0, dump_epbar = 0, dump_dmibar = 0;
 119         int dump_pciexbar = 0, dump_coremsrs = 0;
 120
 121         static struct option long_options[] = {
 122                 {"version", 0, 0, 'v'},
 123                 {"help", 0, 0, 'h'},
 124                 {"gpios", 0, 0, 'g'},
 125                 {"mchbar", 0, 0, 'm'},
 126                 {"rcba", 0, 0, 'r'},
 127                 {"pmbase", 0, 0, 'p'},
 128                 {"epbar", 0, 0, 'e'},
 129                 {"dmibar", 0, 0, 'd'},
 130                 {"pciexpress", 0, 0, 'P'},
 131                 {"msrs", 0, 0, 'M'},
 132                 {"all", 0, 0, 'a'},
 133                 {0, 0, 0, 0}
 134         };
 135
 136         while ((opt = getopt_long(argc, argv, "vh?grpmedPMa",
 137                                   long_options, &option_index)) != EOF) {
 138                 switch (opt) {
 139                 case 'v':
 140                         print_version();
 141                         exit(0);
 142                         break;
 143                 case 'g':
 144                         dump_gpios = 1;
 145                         break;
 146                 case 'm':
 147                         dump_mchbar = 1;
 148                         break;
 149                 case 'r':
 150                         dump_rcba = 1;
 151                         break;
 152                 case 'p':
 153                         dump_pmbase = 1;
 154                         break;
 155                 case 'e':
 156                         dump_epbar = 1;
 157                         break;
 158                 case 'd':
 159                         dump_dmibar = 1;
 160                         break;
 161                 case 'P':
 162                         dump_pciexbar = 1;
 163                         break;
 164                 case 'M':
 165                         dump_coremsrs = 1;
 166                         break;
 167                 case 'a':
 168                         dump_gpios = 1;
 169                         dump_mchbar = 1;
 170                         dump_rcba = 1;
 171                         dump_pmbase = 1;
 172                         dump_epbar = 1;
 173                         dump_dmibar = 1;
 174                         dump_pciexbar = 1;
 175                         dump_coremsrs = 1;
 176                         break;
 177                 case 'h':
 178                 case '?':
 179                 default:
 180                         print_usage(argv[0]);
 181                         exit(0);
 182                         break;
 183                 }
 184         }
 185
 186         if (iopl(3)) {
 187                 printf("You need to be root.\n");
 188                 exit(1);
 189         }
 190
 191 #ifndef DARWIN
 192         if ((fd_mem = open("/dev/mem", O_RDWR)) < 0) {
 193                 perror("Can not open /dev/mem");
 194                 exit(1);
 195         }
 196 #endif
 197
 198         pacc = pci_alloc();
 199         pci_init(pacc);
 200         pci_scan_bus(pacc);
 201
 202         /* Find the required devices */
 203
 204         sb = pci_get_dev(pacc, 0, 0, 0x1f, 0);
 205         if (!sb) {
 206                 printf("No southbridge found.\n");
 207                 exit(1);
 208         }
 209
 210         pci_fill_info(sb, PCI_FILL_IDENT|PCI_FILL_BASES|PCI_FILL_SIZES|PCI_FILL_CLASS);
 211
 212         if (sb->vendor_id != PCI_VENDOR_ID_INTEL) {
 213                 printf("Not an Intel(R) southbridge.\n");
 214                 exit(1);
 215         }
 216
 217         nb = pci_get_dev(pacc, 0, 0, 0x00, 0);
 218         if (!nb) {
 219                 printf("No northbridge found.\n");
 220                 exit(1);
 221         }
 222
 223         pci_fill_info(nb, PCI_FILL_IDENT|PCI_FILL_BASES|PCI_FILL_SIZES|PCI_FILL_CLASS);
 224
 225         if (nb->vendor_id != PCI_VENDOR_ID_INTEL) {
 226                 printf("Not an Intel(R) northbridge.\n");
 227                 exit(1);
 228         }
 229
 230         id = cpuid(1);
 231         printf("Intel CPU: Family %x, Model %x\n",
 232                         (id >> 8) & 0xf, (id >> 4) & 0xf);
 233
 234         /* Determine names */
 235         for (i = 0; i < ARRAY_SIZE(supported_chips_list); i++)
 236                 if (nb->device_id == supported_chips_list[i].device_id)
 237                         nbname = supported_chips_list[i].name;
 238         for (i = 0; i < ARRAY_SIZE(supported_chips_list); i++)
 239                 if (sb->device_id == supported_chips_list[i].device_id)
 240                         sbname = supported_chips_list[i].name;
 241
 242         printf("Intel Northbridge: %04x:%04x (%s)\n",
 243                 nb->vendor_id, nb->device_id, nbname);
 244
 245         printf("Intel Southbridge: %04x:%04x (%s)\n",
 246                 sb->vendor_id, sb->device_id, sbname);
 247
 248         /* Now do the deed */
 249
 250         if (dump_gpios) {
 251                 print_gpios(sb);
 252                 printf("\n\n");
 253         }
 254
 255         if (dump_rcba) {
 256                 print_rcba(sb);
 257                 printf("\n\n");
 258         }
 259
 260         if (dump_pmbase) {
 261                 print_pmbase(sb);
 262                 printf("\n\n");
 263         }
 264
 265         if (dump_mchbar) {
 266                 print_mchbar(nb);
 267                 printf("\n\n");
 268         }
 269
 270         if (dump_epbar) {
 271                 print_epbar(nb);
 272                 printf("\n\n");
 273         }
 274
 275         if (dump_dmibar) {
 276                 print_dmibar(nb);
 277                 printf("\n\n");
 278         }
 279
 280         if (dump_pciexbar) {
 281                 print_pciexbar(nb);
 282                 printf("\n\n");
 283         }
 284
 285         if (dump_coremsrs) {
 286                 print_intel_core_msrs();
 287                 printf("\n\n");
 288         }
 289
 290         /* Clean up */
 291         pci_free_dev(nb);
 292         pci_free_dev(sb);
 293         pci_cleanup(pacc);
 294
 295         return 0;
 296 }