LXR coreboot/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 * You should have received a copy of the GNU General Public License
  16 * along with this program; if not, write to the Free Software
  17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  18 */
  19
  20/* This program will dump the IO/memory/PCI resources from the K8
  21 * memory controller
  22 */
  23
  24#include <stdio.h>
  25#include <stdlib.h>
  26#include <stdint.h>
  27#include <unistd.h>
  28#include <sys/types.h>
  29#include <pci/pci.h>
  30
  31#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
  32
  33static uint8_t dram_bases[] =
  34    { 0x40, 0x48, 0x50, 0x58, 0x60, 0x68, 0x70, 0x78 };
  35static uint8_t dram_limits[] =
  36    { 0x44, 0x4C, 0x54, 0x5C, 0x64, 0x6C, 0x74, 0x7C };
  37static uint8_t iomem_bases[] =
  38    { 0x80, 0x88, 0x90, 0x98, 0xA0, 0xA8, 0xB0, 0xB8 };
  39static uint8_t iomem_limits[] =
  40    { 0x84, 0x8C, 0x94, 0x9C, 0xA4, 0xAC, 0xB4, 0xBC };
  41
  42static uint8_t pciio_bases[] = { 0xC0, 0xC8, 0xD0, 0xD8 };
  43static uint8_t pciio_limits[] = { 0xC4, 0xCC, 0xD4, 0xDC };
  44
  45void print_info(struct pci_dev *dev)
  46{
  47        int i;
  48        uint32_t regb, regl;
  49
  50        for (i = 0; i < ARRAY_SIZE(dram_bases); i++) {
  51                regb = pci_read_long(dev, dram_bases[i]);
  52                regl = pci_read_long(dev, dram_limits[i]);
  53
  54                printf
  55                    ("DRAM map: #%d 0x%04x000000 - 0x%04xffffff Access: %s/%s"
  56                     "  IntlvEN:0x%x IntlvSEL:0x%x Dstnode:%d\n",
  57                     i, regb >> 16, regl >> 16, regb & 1 ? "R" : "",
  58                     regb & 2 ? "W" : "", (regb & 0x700) >> 8,
  59                     (regl & 0x700) >> 8, (regl & 0x7));
  60        }
  61
  62
  63        for (i = 0; i < ARRAY_SIZE(iomem_bases); i++) {
  64                regb = pci_read_long(dev, iomem_bases[i]);
  65                regl = pci_read_long(dev, iomem_limits[i]);
  66
  67                printf
  68                    ("MMIO map: #%d 0x%06x0000 - 0x%06xffff Access: %s/%s  %s %s"
  69                     " %s Dstnode:%d DstLink %d\n",
  70                     i, regb >> 8, regl >> 8, regb & 1 ? "R" : "",
  71                     regb & 2 ? "W" : "", regb & 4 ? "CPU Dis" : "",
  72                     regb & 8 ? "Locked" : "",
  73                     regl & 0x80 ? "NonPosted" : "", regl & 0x7,
  74                     (regl & 0x30) >> 4);
  75        }
  76
  77        for (i = 0; i < ARRAY_SIZE(pciio_bases); i++) {
  78                regb = pci_read_long(dev, pciio_bases[i]);
  79                regl = pci_read_long(dev, pciio_limits[i]);
  80
  81                printf
  82                    ("  IO map: #%d  0x%03x000 - 0x%03xfff Access: %s/%s  %s %s"
  83                     " Dstnode:%d DstLink %d\n",
  84                     i, (regb & ~0xff000000) >> 12,
  85                     (regl & ~0xff000000) >> 12, regb & 1 ? "R" : "",
  86                     regb & 2 ? "W" : "", regb & 0x20 ? "ISA" : "",
  87                     regb & 0x10 ? "VGA" : "", regl & 0x7,
  88                     (regl & 0x30) >> 4);
  89        }
  90
  91
  92}
  93
  94int main(void)
  95{
  96        struct pci_access *pacc;
  97        struct pci_dev *dev;
  98
  99        if (getuid()) {
 100                fprintf(stderr, "Please run me root, need access to all"
 101                        " PCI regs!\n");
 102                exit(1);
 103        }
 104
 105        pacc = pci_alloc();
 106        pci_init(pacc);
 107        pci_scan_bus(pacc);
 108        for (dev = pacc->devices; dev; dev = dev->next) {
 109                pci_fill_info(dev, PCI_FILL_IDENT | PCI_FILL_BASES |
 110                              PCI_FILL_CLASS);
 111                if ((dev->vendor_id == 0x1022) /* AMD */
 112                    && (dev->device_id == 0x1101)) { /* Address MAP */
 113                        print_info(dev);
 114                }
 115        }
 116        pci_cleanup(pacc);
 117        return 0;
 118}
 119