SYSTEM-ON-CHIP HAVING A SYMMETRIC MULTI-PROCESSOR AND METHOD OF DETERMINING A MAXIMUM OPERATING CLOCK FREQUENCY FOR THE SAME

摘要

A system-on-chip includes a symmetric multi-processor including a plurality of cores, each configured to operate in a high performance operating mode and a low performance operating mode. The system-on-chip further includes a clock management unit configured to provide an operating clock signal to the symmetric multi-processor, a state management unit configured to monitor operating states of the cores, a temperature management unit configured to monitor a temperature of the symmetric multi-processor, and a symmetric multi-processor control unit configured to determine the operating clock signal and the operating states of the cores based on a workload of the symmetric multi-processor. The symmetric multi-processor control unit is further configured to differentially determine a maximum operating clock frequency for the cores based on the temperature and the operating states of the cores, which indicate a quantity of cores that are currently in operation.

主权项

1. A system-on-chip, comprising:
a symmetric multi-processor comprising a plurality of cores, wherein each core is configured to operate in a high performance operating mode and a low performance operating mode; a clock management unit configured to provide an operating clock signal to the symmetric multi-processor; a state management unit configured to monitor operating states of the cores; a temperature management unit configured to monitor a temperature of the symmetric multi-processor; and a symmetric multi-processor control unit configured to determine the operating clock signal and the operating states of the cores based on a workload of the symmetric multi-processor, and to differentially determine a maximum operating clock frequency for the cores based on the temperature and the operating states of the cores, wherein the operating states of the cores indicate a quantity of cores of the symmetric multi-processor that are currently in operation.