linux-2.4.20-440gx.patch

   1 diff -urNp linux-850/arch/i386/kernel/dmi_scan.c linux-860/arch/i386/kernel/dmi_scan.c
   2 --- linux-850/arch/i386/kernel/dmi_scan.c
   3 +++ linux-860/arch/i386/kernel/dmi_scan.c
   4 @@ -11,6 +11,8 @@
   5  #include <asm/system.h>
   6  #include <linux/bootmem.h>
   7
   8 +#include "pci-i386.h"
   9 +
  10  unsigned long dmi_broken;
  11  int is_sony_vaio_laptop;
  12
  13 @@ -447,6 +449,8 @@ static __init int swab_apm_power_in_minu
  14   */
  15
  16  extern int skip_ioapic_setup;
  17 +extern int broken_440gx_bios;
  18 +extern unsigned int pci_probe;
  19  static __init int broken_pirq(struct dmi_blacklist *d)
  20  {
  21         printk(KERN_ERR " *** Possibly defective BIOS detected (irqtable)\n");
  22 @@ -457,6 +461,9 @@ static __init int broken_pirq(struct dmi
  23  #ifdef CONFIG_X86_IO_APIC
  24         skip_ioapic_setup = 0;
  25  #endif
  26 +       broken_440gx_bios = 1;
  27 +       pci_probe |= PCI_BIOS_IRQ_SCAN;
  28 +
  29         return 0;
  30  }
  31
  32 diff -urNp linux-850/arch/i386/kernel/pci-irq.c linux-860/arch/i386/kernel/pci-irq.c
  33 --- linux-850/arch/i386/kernel/pci-irq.c
  34 +++ linux-860/arch/i386/kernel/pci-irq.c
  35 @@ -23,6 +23,7 @@
  36  #define PIRQ_VERSION 0x0100
  37
  38  int broken_hp_bios_irq9;
  39 +int broken_440gx_bios;
  40
  41  static struct irq_routing_table *pirq_table;
  42
  43 @@ -681,7 +682,10 @@ static int pcibios_lookup_irq(struct pci
  44  void __init pcibios_irq_init(void)
  45  {
  46         DBG("PCI: IRQ init\n");
  47 -       pirq_table = pirq_find_routing_table();
  48 +       if (broken_440gx_bios)
  49 +               pirq_table = NULL;
  50 +       else
  51 +               pirq_table = pirq_find_routing_table();
  52  #ifdef CONFIG_PCI_BIOS
  53         if (!pirq_table && (pci_probe & PCI_BIOS_IRQ_SCAN))
  54                 pirq_table = pcibios_get_irq_routing_table();