Data processing system operable in single and multi-thread modes and having multiple caches and method of operation

摘要

In some embodiments, a data processing system includes a processing unit, a first load/store unit LSU and a second LSU configured to operate independently of the first LSU in single and multi-thread modes. A first store buffer is coupled to the first and second LSUs, and a second store buffer is coupled to the first and second LSUs. The first store buffer is used to execute a first thread in multi-thread mode. The second store buffer is used to execute a second thread in multi-thread mode. The first and second store buffers are used when executing a single thread in single thread mode.

主权项

1. A data processing system comprising:
a processing unit including:
a first LSU (load/store unit);a second LSU configured to operate independently of the first LSU in single and multi-thread modes;a first store buffer coupled to the first and second LSUs; anda second store buffer coupled to the first and second LSUs, wherein
the first store buffer is used to execute a first thread in multi-thread mode,the second store buffer is used to execute a second thread in multi-thread mode, andthe first and second store buffers are used when executing a single thread in single thread mode.