util/k8resdump/k8resdump.c

   1 /*
   2  * This file is part of the LinuxBIOS project.
   3  *
   4  * Copyright (C) 2007 Rudolf Marek <r.marek@assembler.cz>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License v2 as published by
   8  * the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15
  16 /* This program will dump the IO/memory/PCI resources from the K8
  17  * memory controller
  18  */
  19
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <stdint.h>
  23 #include <unistd.h>
  24 #include <sys/types.h>
  25 #include <pci/pci.h>
  26
  27 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
  28
  29 static uint8_t dram_bases[] =
  30     { 0x40, 0x48, 0x50, 0x58, 0x60, 0x68, 0x70, 0x78 };
  31 static uint8_t dram_limits[] =
  32     { 0x44, 0x4C, 0x54, 0x5C, 0x64, 0x6C, 0x74, 0x7C };
  33 static uint8_t iomem_bases[] =
  34     { 0x80, 0x88, 0x90, 0x98, 0xA0, 0xA8, 0xB0, 0xB8 };
  35 static uint8_t iomem_limits[] =
  36     { 0x84, 0x8C, 0x94, 0x9C, 0xA4, 0xAC, 0xB4, 0xBC };
  37
  38 static uint8_t pciio_bases[] = { 0xC0, 0xC8, 0xD0, 0xD8 };
  39 static uint8_t pciio_limits[] = { 0xC4, 0xCC, 0xD4, 0xDC };
  40
  41 void print_info(struct pci_dev *dev)
  42 {
  43         int i;
  44         uint32_t regb, regl;
  45
  46         for (i = 0; i < ARRAY_SIZE(dram_bases); i++) {
  47                 regb = pci_read_long(dev, dram_bases[i]);
  48                 regl = pci_read_long(dev, dram_limits[i]);
  49
  50                 printf
  51                     ("DRAM map: #%d 0x%04x000000 - 0x%04xffffff Access: %s/%s"
  52                      "  IntlvEN:0x%x IntlvSEL:0x%x Dstnode:%d\n",
  53                      i, regb >> 16, regl >> 16, regb & 1 ? "R" : "",
  54                      regb & 2 ? "W" : "", (regb & 0x700) >> 8,
  55                      (regl & 0x700) >> 8, (regl & 0x7));
  56         }
  57
  58
  59         for (i = 0; i < ARRAY_SIZE(iomem_bases); i++) {
  60                 regb = pci_read_long(dev, iomem_bases[i]);
  61                 regl = pci_read_long(dev, iomem_limits[i]);
  62
  63                 printf
  64                     ("MMIO map: #%d 0x%06x0000 - 0x%06xffff Access: %s/%s  %s %s"
  65                      " %s Dstnode:%d DstLink %d\n",
  66                      i, regb >> 8, regl >> 8, regb & 1 ? "R" : "",
  67                      regb & 2 ? "W" : "", regb & 4 ? "CPU Dis" : "",
  68                      regb & 8 ? "Locked" : "",
  69                      regl & 0x80 ? "NonPosted" : "", regl & 0x7,
  70                      (regl & 0x30) >> 4);
  71         }
  72
  73         for (i = 0; i < ARRAY_SIZE(pciio_bases); i++) {
  74                 regb = pci_read_long(dev, pciio_bases[i]);
  75                 regl = pci_read_long(dev, pciio_limits[i]);
  76
  77                 printf
  78                     ("  IO map: #%d  0x%03x000 - 0x%03xfff Access: %s/%s  %s %s"
  79                      " Dstnode:%d DstLink %d\n",
  80                      i, (regb & ~0xff000000) >> 12,
  81                      (regl & ~0xff000000) >> 12, regb & 1 ? "R" : "",
  82                      regb & 2 ? "W" : "", regb & 0x20 ? "ISA" : "",
  83                      regb & 0x10 ? "VGA" : "", regl & 0x7,
  84                      (regl & 0x30) >> 4);
  85         }
  86
  87
  88 }
  89
  90 int main(void)
  91 {
  92         struct pci_access *pacc;
  93         struct pci_dev *dev;
  94
  95         if (getuid()) {
  96                 fprintf(stderr, "Please run me root, need access to all"
  97                         " PCI regs!\n");
  98                 exit(1);
  99         }
 100
 101         pacc = pci_alloc();
 102         pci_init(pacc);
 103         pci_scan_bus(pacc);
 104         for (dev = pacc->devices; dev; dev = dev->next) {
 105                 pci_fill_info(dev, PCI_FILL_IDENT | PCI_FILL_BASES |
 106                               PCI_FILL_CLASS);
 107                 if ((dev->vendor_id == 0x1022) /* AMD */
 108                     && (dev->device_id == 0x1101)) { /* Address MAP */
 109                         print_info(dev);
 110                 }
 111         }
 112         pci_cleanup(pacc);
 113         return 0;
 114 }