Method and device based on hardware frequency conversion

Abstract

The invention discloses a method and device based on hardware frequency conversion. The device comprises target units, frequency conversion monitoring units and frequency conversion control units. Each target unit corresponds to one frequency conversion monitoring unit. Each frequency conversion monitoring unit comprises a load monitoring unit, a determination unit and a frequency conversion request sending unit. Each frequency conversion control unit comprises a frequency conversion strategy determination unit and a frequency conversion strategy execution unit. When the device is used, load data of each target unit can be monitored by each load monitoring unit in a real-time manner. When load data of each current target data is determined to be larger than the first pre-set threshold value or less than the second pre-set threshold value, each frequency conversion strategy determination unit is used for determining the current frequency conversion strategy and adjusting working frequency of each target unit to working frequency corresponding to each frequency conversion strategy. All frequency conversion processes are carried out by frequency conversion control units. Compared with the mode for utilizing software to achieve frequency conversion, greater adpatabiloty is achieved and frequency conversion of the target units can be executed efficiently, thereby reducing system loss.

Description

technical field [0001] The invention relates to the field of SOC chip design, in particular to a method and device based on hardware frequency conversion. Background technique [0002] The SOC architecture of mobile devices is usually composed of functional modules such as CPU, GPU, VPU, and bus interconnection modules. Each functional module and bus interconnection module can use different working clock frequencies and working voltages. In order to match the best power consumption and performance, some functional modules such as CPU and GPU can work at different clock frequencies according to actual needs, and lower clock frequencies can use lower voltages to reduce power consumption. [0003] However, there are many problems in the existing frequency conversion scheme: First, the DVFS (Dynamic Voltage Frequency Scaling) of the system only implements the main functional modules such as the CPU, and does not implement the DVFS technology for the entire SOC architecture. Es...

AI Technical Summary

Problems solved by technology

[0004] To this end, it is necessary to provide a technical solution based on hardware frequency conversion to solve the problem that the existing frequency conversion solutions cannot cover all modules of the entire SOC architecture, and it is difficult for system critical paths (such as bus interconnection modules) Increased power consumption, and the software itself needs to consume system resources, resulting in poor power consumption and other issues

Images