A CACHE FLUSH MECHANISM FOR A SECONDARY CACHE MEMORY

摘要

The bimodulus that a kind of effective mechanism cache flushing can be applied to multiple storage systems operations is disclosed. Bimodulus concrete composition two-way mode physically distinguishes the entire address of at least part for the logical address space that main memory shares respectively using two. The switch mode for indicating those signals (SMIACT#) is interrupted, the offer of second level cache is provided. When generating SMIACT# by CPU and system detection core, the cache of system core interchanger memory bank is write back, and is violated hence into memory consistency in cache and main memory. But the present invention interrupts SMIACT# just to reach the cache flushing before on system core, ensure that the content of the cache memory writes back correct memory bank and initially resides in data, because the system core thinks, although actually generating SMIACT# as mode does not switch CPU.