release/src-rt-6.x.4708/linux/linux-2.6.36/arch/x86/pci/init.c

   1 #include <linux/pci.h>
   2 #include <linux/init.h>
   3 #include <asm/pci_x86.h>
   4 #include <asm/x86_init.h>
   5
   6 /* arch_initcall has too random ordering, so call the initializers
   7    in the right sequence from here. */
   8 static __init int pci_arch_init(void)
   9 {
  10 #ifdef CONFIG_PCI_DIRECT
  11         int type = 0;
  12
  13         type = pci_direct_probe();
  14 #endif
  15
  16         if (!(pci_probe & PCI_PROBE_NOEARLY))
  17                 pci_mmcfg_early_init();
  18
  19         if (x86_init.pci.arch_init && !x86_init.pci.arch_init())
  20                 return 0;
  21
  22 #ifdef CONFIG_PCI_BIOS
  23         pci_pcbios_init();
  24 #endif
  25         /*
  26          * don't check for raw_pci_ops here because we want pcbios as last
  27          * fallback, yet it's needed to run first to set pcibios_last_bus
  28          * in case legacy PCI probing is used. otherwise detecting peer busses
  29          * fails.
  30          */
  31 #ifdef CONFIG_PCI_DIRECT
  32         pci_direct_init(type);
  33 #endif
  34         if (!raw_pci_ops && !raw_pci_ext_ops)
  35                 printk(KERN_ERR
  36                 "PCI: Fatal: No config space access function found\n");
  37
  38         dmi_check_pciprobe();
  39
  40         dmi_check_skip_isa_align();
  41
  42         return 0;
  43 }
  44 arch_initcall(pci_arch_init);