Computer system cache controller and methods of operation of a cache controller

摘要

In at least some embodiments, a computer system comprises a central processing unit (“CPU”), a bridge device coupled to a main memory, and a cache controller coupled between the bridge device and the CPU. The computer system further comprises a cache memory coupled to the cache controller and providing memory space to the CPU, wherein the cache controller allows communication between the CPU and the bridge device when the CPU communicates using a first protocol and the bridge device communicates using a second protocol, and wherein the cache controller allows communication between the CPU and the bridge device when the CPU communicates using the second protocol and the bridge device communicates using the first protocol.