root/arch/x86/pci/

[..]
  1. acpi.c
  2. amd_bus.c
  3. common.c
  4. direct.c
  5. early.c
  6. fixup.c
  7. i386.c
  8. init.c
  9. irq.c
  10. legacy.c
  11. mmconfig-shared.c
  12. mmconfig_32.c
  13. mmconfig_64.c
  14. numaq_32.c
  15. olpc.c
  16. pcbios.c
  17. pci.h
  18. visws.c
[..]