| 摘要 |
A device for managing a memory in a shared memory system is provided to apply for multi-application and keep consistency of a cache in an SoC(System on Chip), which is a part of the shared memory system. An SoC unit(100a) includes a local controller, an on-chip memory, a plurality of processors(110a-110k), and a memory controller(102a) coupled with a memory(106a) outside of the local SoC. The local controller determines whether a local SoC has an exclusive ownership for a memory address by responding to a memory address access request received from a remote controller of a remote SoC. The local SoC transmits data from the memory address and stores an entry for recognizing that the remote SoC generates the request when the local SoC has the exclusive ownership for the memory address. The entry specifies whether the request is related to the exclusive ownership for the memory address. A predetermined field of the entry stores data for recognizing the remote SoC. The local SoC and the remote SoC are connected through an SCI(Scalable Coherent Interface) of a CC-NUMA(Cache Coherent Non Uniform Memory Access).
|
