• Bjorn Helgaas's avatar
    [PATCH] ia64: multi-ioport space support · 5d34d783
    Bjorn Helgaas authored
    This has been in my 2.4 BK tree for a while, but I should have
    posted it in case there's feedback from other people working
    on large machines.  So here it is, in four parts:
    
      1  enhance __ia64_mk_io_addr(port)
      2  enhance pcibios_scan_root to get multiple mem & io windows
          from ACPI _CRS, and fixup all the resources
      3  add support for /proc/iomem and /proc/ioports
      4  trivial (whitespace, copyright, and move pcibios_fixup_device_resources
           closer to related code)
    
    The current scheme is that IO ports are 64 bits, with the low 24
    bits being the port number within an IO port space, and the upper
    bits identifying the space.  There is currently a limit of 16
    spaces.
    5d34d783
setup.c 20.6 KB