How to an atomic operation on CPX8216?

Hi:
  The Read-Modify-Write instruction can be used on VME bus to finish an
atomic operation. Is there any similar method on compact pci bus? How can it
be implemented on a system board (MCP750) for CPX8216 structure?


** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/