cvs commit: src/sys/sparc64/pci ofw_pcibus.c

[Marius Strobl]

marius      2007-01-08 01:08:24 UTC

  FreeBSD src repository

  Modified files:
    sys/sparc64/pci      ofw_pcibus.c 
  Log:
  In ofw_pcibus_attach() skip dupe PCI devices reported by the
  firmware (mainly 'pmu' and its 'lomp' dupe found in a couple of
  later USII{e,i}-based machines) by checking whether a device with
  the same triple of bus number, slot and function already has been
  added. This is the simple yet effective approach introduced in
  OpenBSD some time ago, but which has the flaw that it assumes
  that the device and its dupe(s) found in the OFW device tree are
  equal or at least the one encountered first is in some way the
  more important one (this is the case with 'pmu' and 'lomp'; the
  'pmu' node has couple of properties and children while the 'lomp'
  one misses most of these). If there's ever a device/dupe pair
  where we don't encounter the more important node first, we'll
  probably need to introduce a quirk list in order to add the
  desired device but prevent its dupe(s) from being added.
  
  MFC after:      1 week
  
  Revision  Changes    Path
  1.12      +2 -0      src/sys/sparc64/pci/ofw_pcibus.c