- Add a new ioctl to /dev/pci to fetch details on an individual BAR of a   device.  The details include the current value of the BAR (including all   the flag bits and the current base address), its length, and whether or not   it is enabled.  Since this operation is not invasive, non-root users are   allowed to use it (unlike manual config register access which requires   root).  The intention is that userland apps (such as Xorg) will use this   interface rather than dangerously frobbing the BARs from userland to   obtain this information. - Add a new sub-mode to the 'list' mode of pciconf.  The -b flag when used   with -l will now list all the active BARs for each device.
- Add a new ioctl to /dev/pci to fetch details on an individual BAR of a
  device.  The details include the current value of the BAR (including all
  the flag bits and the current base address), its length, and whether or not
  it is enabled.  Since this operation is not invasive, non-root users are
  allowed to use it (unlike manual config register access which requires
  root).  The intention is that userland apps (such as Xorg) will use this
  interface rather than dangerously frobbing the BARs from userland to
  obtain this information.
- Add a new sub-mode to the 'list' mode of pciconf.  The -b flag when used
  with -l will now list all the active BARs for each device.

(Missed in previous commit)

MFC after:	1 week

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase