K 10
svn:author
V 3
jhb
K 8
svn:date
V 27
2009-05-04T20:35:59.906382Z
K 7
svn:log
V 826
MFC: Various fixes to the PCI resource allocation code:
- Disabling decoding of BARs via the PCI command register before writing
  to the BARs to size them.
- Don't free resources decoded by a BAR when the device driver releases a
  BAR.  Instead, the PCI bus now owns unclaimed BARs and gives them to
  drivers on demand.  When a driver releases a BAR, the PCI bus reclaims
  it and leaves the resource range allocated.  This also prevents drivers
  from allocating the same resource multiple times.
- Move the activation of BARs by enabling decoding in the PCI command
  register into bus_activate_resource() so that it always happens after the
  BAR is fully programmed.
- Always read/write the full 64-bit value of 64-bit BARs.
- Consolidate duplicated code for reading and sizing BARs and writing base
  address to BARs.

END