Storage controller, data cache controller, a central processing unit, storage device control method, cache control method and data cache control method

摘要

A central processing unit having a plurality of sets of primary data cache device and the instruction processor to execute multiple threads concurrently, with a second cache unit is shared by the primary data cache device set of said plurality of physical address There is performed MI request to the secondary cache unit when the thread ID is different even if a cache line matching is registered in the cache memory, and executes the MO / BI is based on a request from the secondary cache unit the primary data cache unit that sets the RIM flag of the fetch port Te, request to the primary cache unit to perform the MO / BI If the cache line received the MI request is registered in the primary data cache unit in a separate thread I and a secondary cache units.