Data processing system and method for predictively selecting a scope of broadcast of an operation utilizing a location of a memory

A cache coherent data processing system, comprising:

• a memory;
• at least first and second coherency domains coupled for communication, wherein said first and second coherency domains each include a respective one of first and second cache memories;
• and
• a master in the first coherency domain that selects a scope of an initial broadcast of an operation targeting a request address allocated to the memory from among a first scope including only the first coherency domain and a second scope including both the first and second coherency domains, wherein said master selects the scope based, at least in part, upon whether said memory to which the request address is allocated belongs to said first coherency domain;
• wherein the master performs an initial broadcast of the operation within the cache coherent data processing system utilizing the selected scope, wherein said performing an initial broadcast includes the master initiating broadcast of the operation within the first coherency domain and wherein said request address is a real address.