arch/x86/pci/init.c

   1 #include <linux/pci.h>
   2 #include <linux/init.h>
   3 #include <asm/pci_x86.h>
   4
   5 /* arch_initcall has too random ordering, so call the initializers
   6    in the right sequence from here. */
   7 static __init int pci_arch_init(void)
   8 {
   9 #ifdef CONFIG_PCI_DIRECT
  10         int type = 0;
  11
  12         type = pci_direct_probe();
  13 #endif
  14
  15         if (!(pci_probe & PCI_PROBE_NOEARLY))
  16                 pci_mmcfg_early_init();
  17
  18 #ifdef CONFIG_PCI_OLPC
  19         if (!pci_olpc_init())
  20                 return 0;       /* skip additional checks if it's an XO */
  21 #endif
  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);