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_82443LX, "82443LX" },
  33         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX, "82443BX" },
  34         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_NO_AGP, "82443BX without AGP" },
  35         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810, "i810" },
  36         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810DC, "i810-DC100" },
  37         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845, "i845" },
  38         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82945P, "i945P" },
  39         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82945GM, "i945GM" },
  40         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PM965, "PM965" },
  41         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82975X, "i975X" },
  42         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_X58, "X58" },
  43         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10R, "ICH10R" },
  44         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8M, "ICH8-M" },
  45         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7MDH, "ICH7-M DH" },
  46         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7M, "ICH7-M" },
  47         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7, "ICH7" },
  48         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7DH, "ICH7DH" },
  49         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH4M, "ICH4-M" },
  50         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH4, "ICH4" },
  51         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH2, "ICH2" },
  52         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH0, "ICH0" },
  53         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH, "ICH" },
  54         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371XX, "82371AB/EB/MB" },
  55 };
  56
  57 #ifndef __DARWIN__
  58 static int fd_mem;
  59
  60 void *map_physical(unsigned long phys_addr, size_t len)
  61 {
  62         void *virt_addr;
  63
  64         virt_addr = mmap(0, len, PROT_WRITE | PROT_READ, MAP_SHARED,
  65                     fd_mem, (off_t) phys_addr);
  66
  67         if (virt_addr == MAP_FAILED) {
  68                 printf("Error mapping physical memory 0x%08lx[0x%x]\n", phys_addr, len);
  69                 return NULL;
  70         }
  71
  72         return virt_addr;
  73 }
  74
  75 void unmap_physical(void *virt_addr, size_t len)
  76 {
  77         munmap(virt_addr, len);
  78 }
  79 #endif
  80
  81 void print_version(void)
  82 {
  83         printf("inteltool v%s -- ", INTELTOOL_VERSION);
  84         printf("Copyright (C) 2008 coresystems GmbH\n\n");
  85         printf(
  86     "This program is free software: you can redistribute it and/or modify\n"
  87     "it under the terms of the GNU General Public License as published by\n"
  88     "the Free Software Foundation, version 2 of the License.\n\n"
  89     "This program is distributed in the hope that it will be useful,\n"
  90     "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
  91     "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
  92     "GNU General Public License for more details.\n\n"
  93     "You should have received a copy of the GNU General Public License\n"
  94     "along with this program.  If not, see <http://www.gnu.org/licenses/>.\n\n");
  95 }
  96
  97 void print_usage(const char *name)
  98 {
  99         printf("usage: %s [-vh?grpmedPMa]\n", name);
 100         printf("\n"
 101              "   -v | --version:                   print the version\n"
 102              "   -h | --help:                      print this help\n\n"
 103              "   -g | --gpio:                      dump soutbridge GPIO registers\n"
 104              "   -r | --rcba:                      dump soutbridge RCBA registers\n"
 105              "   -p | --pmbase:                    dump soutbridge Power Management registers\n\n"
 106              "   -m | --mchbar:                    dump northbridge Memory Controller registers\n"
 107              "   -e | --epbar:                     dump northbridge EPBAR registers\n"
 108              "   -d | --dmibar:                    dump northbridge DMIBAR registers\n"
 109              "   -P | --pciexpress:                dump northbridge PCIEXBAR registers\n\n"
 110              "   -M | --msrs:                      dump CPU MSRs\n"
 111              "   -a | --all:                       dump all known registers\n"
 112              "\n");
 113         exit(1);
 114 }
 115
 116 int main(int argc, char *argv[])
 117 {
 118         struct pci_access *pacc;
 119         struct pci_dev *sb = NULL, *nb, *dev;
 120         int i, opt, option_index = 0;
 121         unsigned int id;
 122
 123         char *sbname = "unknown", *nbname = "unknown";
 124
 125         int dump_gpios = 0, dump_mchbar = 0, dump_rcba = 0;
 126         int dump_pmbase = 0, dump_epbar = 0, dump_dmibar = 0;
 127         int dump_pciexbar = 0, dump_coremsrs = 0;
 128
 129         static struct option long_options[] = {
 130                 {"version", 0, 0, 'v'},
 131                 {"help", 0, 0, 'h'},
 132                 {"gpios", 0, 0, 'g'},
 133                 {"mchbar", 0, 0, 'm'},
 134                 {"rcba", 0, 0, 'r'},
 135                 {"pmbase", 0, 0, 'p'},
 136                 {"epbar", 0, 0, 'e'},
 137                 {"dmibar", 0, 0, 'd'},
 138                 {"pciexpress", 0, 0, 'P'},
 139                 {"msrs", 0, 0, 'M'},
 140                 {"all", 0, 0, 'a'},
 141                 {0, 0, 0, 0}
 142         };
 143
 144         while ((opt = getopt_long(argc, argv, "vh?grpmedPMa",
 145                                   long_options, &option_index)) != EOF) {
 146                 switch (opt) {
 147                 case 'v':
 148                         print_version();
 149                         exit(0);
 150                         break;
 151                 case 'g':
 152                         dump_gpios = 1;
 153                         break;
 154                 case 'm':
 155                         dump_mchbar = 1;
 156                         break;
 157                 case 'r':
 158                         dump_rcba = 1;
 159                         break;
 160                 case 'p':
 161                         dump_pmbase = 1;
 162                         break;
 163                 case 'e':
 164                         dump_epbar = 1;
 165                         break;
 166                 case 'd':
 167                         dump_dmibar = 1;
 168                         break;
 169                 case 'P':
 170                         dump_pciexbar = 1;
 171                         break;
 172                 case 'M':
 173                         dump_coremsrs = 1;
 174                         break;
 175                 case 'a':
 176                         dump_gpios = 1;
 177                         dump_mchbar = 1;
 178                         dump_rcba = 1;
 179                         dump_pmbase = 1;
 180                         dump_epbar = 1;
 181                         dump_dmibar = 1;
 182                         dump_pciexbar = 1;
 183                         dump_coremsrs = 1;
 184                         break;
 185                 case 'h':
 186                 case '?':
 187                 default:
 188                         print_usage(argv[0]);
 189                         exit(0);
 190                         break;
 191                 }
 192         }
 193
 194         if (iopl(3)) {
 195                 printf("You need to be root.\n");
 196                 exit(1);
 197         }
 198
 199 #ifndef __DARWIN__
 200         if ((fd_mem = open("/dev/mem", O_RDWR)) < 0) {
 201                 perror("Can not open /dev/mem");
 202                 exit(1);
 203         }
 204 #endif
 205
 206         pacc = pci_alloc();
 207         pci_init(pacc);
 208         pci_scan_bus(pacc);
 209
 210         /* Find the required devices */
 211         for (dev = pacc->devices; dev; dev = dev->next) {
 212                 pci_fill_info(dev, PCI_FILL_CLASS);
 213                 /* The ISA/LPC bridge can be 0x1f, 0x07, or 0x04 so we probe. */
 214                 if (dev->device_class == 0x0601) { /* ISA/LPC bridge */
 215                         if (sb == NULL)
 216                                 sb = dev;
 217                         else
 218                                 fprintf(stderr, "Multiple devices with class ID"
 219                                         " 0x0601, using %02x%02x:%02x.%02x\n",
 220                                         dev->domain, dev->bus, dev->dev,
 221                                         dev->func);
 222                 }
 223         }
 224
 225         if (!sb) {
 226                 printf("No southbridge found.\n");
 227                 exit(1);
 228         }
 229
 230         pci_fill_info(sb, PCI_FILL_IDENT|PCI_FILL_BASES|PCI_FILL_SIZES|PCI_FILL_CLASS);
 231
 232         if (sb->vendor_id != PCI_VENDOR_ID_INTEL) {
 233                 printf("Not an Intel(R) southbridge.\n");
 234                 exit(1);
 235         }
 236
 237         nb = pci_get_dev(pacc, 0, 0, 0x00, 0);
 238         if (!nb) {
 239                 printf("No northbridge found.\n");
 240                 exit(1);
 241         }
 242
 243         pci_fill_info(nb, PCI_FILL_IDENT|PCI_FILL_BASES|PCI_FILL_SIZES|PCI_FILL_CLASS);
 244
 245         if (nb->vendor_id != PCI_VENDOR_ID_INTEL) {
 246                 printf("Not an Intel(R) northbridge.\n");
 247                 exit(1);
 248         }
 249
 250         id = cpuid(1);
 251         printf("Intel CPU: Family %x, Model %x\n",
 252                         (id >> 8) & 0xf, (id >> 4) & 0xf);
 253
 254         /* Determine names */
 255         for (i = 0; i < ARRAY_SIZE(supported_chips_list); i++)
 256                 if (nb->device_id == supported_chips_list[i].device_id)
 257                         nbname = supported_chips_list[i].name;
 258         for (i = 0; i < ARRAY_SIZE(supported_chips_list); i++)
 259                 if (sb->device_id == supported_chips_list[i].device_id)
 260                         sbname = supported_chips_list[i].name;
 261
 262         printf("Intel Northbridge: %04x:%04x (%s)\n",
 263                 nb->vendor_id, nb->device_id, nbname);
 264
 265         printf("Intel Southbridge: %04x:%04x (%s)\n",
 266                 sb->vendor_id, sb->device_id, sbname);
 267
 268         /* Now do the deed */
 269
 270         if (dump_gpios) {
 271                 print_gpios(sb);
 272                 printf("\n\n");
 273         }
 274
 275         if (dump_rcba) {
 276                 print_rcba(sb);
 277                 printf("\n\n");
 278         }
 279
 280         if (dump_pmbase) {
 281                 print_pmbase(sb);
 282                 printf("\n\n");
 283         }
 284
 285         if (dump_mchbar) {
 286                 print_mchbar(nb);
 287                 printf("\n\n");
 288         }
 289
 290         if (dump_epbar) {
 291                 print_epbar(nb);
 292                 printf("\n\n");
 293         }
 294
 295         if (dump_dmibar) {
 296                 print_dmibar(nb);
 297                 printf("\n\n");
 298         }
 299
 300         if (dump_pciexbar) {
 301                 print_pciexbar(nb);
 302                 printf("\n\n");
 303         }
 304
 305         if (dump_coremsrs) {
 306                 print_intel_core_msrs();
 307                 printf("\n\n");
 308         }
 309
 310         /* Clean up */
 311         pci_free_dev(nb);
 312         // pci_free_dev(sb); // TODO: glibc detected "double free or corruption"
 313         pci_cleanup(pacc);
 314
 315         return 0;
 316 }