coreboot-libre-fam15h-rdimm/util/viatool/viatool.c

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2024-03-04 11:14:53 +01:00
/*
* viatool - dump all registers on an Intel CPU + chipset based system.
*
* Copyright (C) 2008-2010 by coresystems GmbH
* written by Stefan Reinauer <stepan@coresystems.de>
* Copyright (C) 2009 Carl-Daniel Hailfinger
* Copyright (C) 2013 Alexandru Gagniuc
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
#include <getopt.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <unistd.h>
#include "viatool.h"
#ifdef __NetBSD__
#include <machine/sysarch.h>
#endif
/*
* http://pci-ids.ucw.cz/read/PC/8086
* http://en.wikipedia.org/wiki/Intel_Tick-Tock
* http://en.wikipedia.org/wiki/List_of_Intel_chipsets
* http://en.wikipedia.org/wiki/Intel_Xeon_chipsets
*/
static const struct {
uint16_t vendor_id, device_id;
char *name;
} supported_chips_list[] = {
{ PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX900_SATA, "VX900 SATA"},
/* Host bridges/DRAM controllers (Northbridges) */
{ PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX900, "VX900"},
/* Southbridges (LPC controllers) */
{ PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX900_LPC, "VX900" },
};
#ifndef __DARWIN__
static int fd_mem;
void *map_physical(uint64_t phys_addr, size_t len)
{
void *virt_addr;
virt_addr = mmap(0, len, PROT_WRITE | PROT_READ, MAP_SHARED,
fd_mem, (off_t) phys_addr);
if (virt_addr == MAP_FAILED) {
printf("Error mapping physical memory 0x%08" PRIx64 "[0x%zx]\n",
phys_addr, len);
return NULL;
}
return virt_addr;
}
void unmap_physical(void *virt_addr, size_t len)
{
munmap(virt_addr, len);
}
#endif
void print_version(void)
{
printf("inteltool v%s -- ", VIATOOL_VERSION);
printf("Copyright (C) 2013 Alexandru Gagniuc\n\n");
printf(
"This program is free software: you can redistribute it and/or modify\n"
"it under the terms of the GNU General Public License as published by\n"
"the Free Software Foundation, version 2 of the License.\n\n"
"This program is distributed in the hope that it will be useful,\n"
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
"GNU General Public License for more details.\n\n");
}
void print_usage(const char *name)
{
printf("usage: %s [-vh?gGrpmedPMa]\n", name);
printf("\n"
" -v | --version: print the version\n"
" -h | --help: print this help\n\n"
" -M | --msrs: dump CPU MSRs\n"
" -a | --all: dump all known registers\n"
" -q | --quirks: dump hierarchical configs\n"
"\n");
exit(1);
}
int main(int argc, char *argv[])
{
struct pci_access *pacc;
struct pci_dev *sb = NULL, *nb, *dev;
int i, opt, option_index = 0;
unsigned int id;
char *sbname = "unknown", *nbname = "unknown";
int dump_coremsrs = 0, dump_quirks = 0;
static struct option long_options[] = {
{"version", 0, 0, 'v'},
{"help", 0, 0, 'h'},
{"mchbar", 0, 0, 'm'},
{"msrs", 0, 0, 'M'},
{"quirks", 0, 0, 'q'},
{"all", 0, 0, 'a'},
{0, 0, 0, 0}
};
while ((opt = getopt_long(argc, argv, "vh?gGrpmedPMaA",
long_options, &option_index)) != EOF) {
switch (opt) {
case 'v':
print_version();
exit(0);
break;
case 'M':
dump_coremsrs = 1;
break;
case 'q':
dump_quirks = 1;
break;
case 'a':
dump_coremsrs = 1;
dump_quirks = 1;
break;
case 'h':
case '?':
default:
print_usage(argv[0]);
exit(0);
break;
}
}
#if defined(__FreeBSD__)
if (open("/dev/io", O_RDWR) < 0) {
perror("/dev/io");
#elif defined(__NetBSD__)
# ifdef __i386__
if (i386_iopl(3)) {
perror("iopl");
# else
if (x86_64_iopl(3)) {
perror("iopl");
# endif
#else
if (iopl(3)) {
perror("iopl");
#endif
printf("You need to be root.\n");
exit(1);
}
#ifndef __DARWIN__
if ((fd_mem = open("/dev/mem", O_RDWR)) < 0) {
perror("Can not open /dev/mem");
exit(1);
}
#endif
pacc = pci_alloc();
pci_init(pacc);
pci_scan_bus(pacc);
/* Find the required devices */
for (dev = pacc->devices; dev; dev = dev->next) {
pci_fill_info(dev, PCI_FILL_CLASS);
/* The ISA/LPC bridge can be 0x1f, 0x07, or 0x04 so we probe. */
if (dev->device_class == 0x0601) { /* ISA/LPC bridge */
if (sb == NULL)
sb = dev;
else
fprintf(stderr, "Multiple devices with class ID"
" 0x0601, using %02x%02x:%02x.%02x\n",
dev->domain, dev->bus, dev->dev,
dev->func);
}
}
if (!sb) {
printf("No southbridge found.\n");
exit(1);
}
pci_fill_info(sb, PCI_FILL_IDENT|PCI_FILL_BASES|PCI_FILL_SIZES|PCI_FILL_CLASS);
if (sb->vendor_id != PCI_VENDOR_ID_VIA) {
printf("Not a VIA southbridge.\n");
exit(1);
}
nb = pci_get_dev(pacc, 0, 0, 0x00, 0);
if (!nb) {
printf("No northbridge found.\n");
exit(1);
}
pci_fill_info(nb, PCI_FILL_IDENT|PCI_FILL_BASES|PCI_FILL_SIZES|PCI_FILL_CLASS);
if (nb->vendor_id != PCI_VENDOR_ID_VIA) {
printf("Not a VIA northbridge.\n");
exit(1);
}
id = cpuid(1);
/* Intel has suggested applications to display the family of a CPU as
* the sum of the "Family" and the "Extended Family" fields shown
* above, and the model as the sum of the "Model" and the 4-bit
* left-shifted "Extended Model" fields.
* http://download.intel.com/design/processor/applnots/24161832.pdf
*/
printf("CPU: Processor Type: %x, Family %x, Model %x, Stepping %x\n",
(id >> 12) & 0x3, ((id >> 8) & 0xf) + ((id >> 20) & 0xff),
((id >> 12) & 0xf0) + ((id >> 4) & 0xf), (id & 0xf));
/* Determine names */
for (i = 0; i < ARRAY_SIZE(supported_chips_list); i++)
if (nb->device_id == supported_chips_list[i].device_id)
nbname = supported_chips_list[i].name;
for (i = 0; i < ARRAY_SIZE(supported_chips_list); i++)
if (sb->device_id == supported_chips_list[i].device_id)
sbname = supported_chips_list[i].name;
printf("Northbridge: %04x:%04x (%s)\n",
nb->vendor_id, nb->device_id, nbname);
printf("Southbridge: %04x:%04x (%s)\n",
sb->vendor_id, sb->device_id, sbname);
/* Now do the deed */
if (dump_coremsrs) {
print_intel_core_msrs();
printf("\n\n");
}
if (dump_quirks) {
print_quirks_north(nb, pacc);
print_quirks_south(sb, pacc);
}
/* Clean up */
pci_free_dev(nb);
// pci_free_dev(sb); // TODO: glibc detected "double free or corruption"
pci_cleanup(pacc);
return 0;
}