Memory access control method, device and system

Abstract

The embodiment of the invention provides a memory access control method, device and system. The method comprises the steps that a processor executes a memory setting command, wherein the memory setting command comprises a command code, an original memory address scope and a target value, and the command code is identification information of the memory setting command; after the processor executes the memory setting command, memory setting information is generated, wherein the memory setting information comprises a target memory address scope and the target value; the processor sends the memory setting information to a memory controller, so that the memory controller sets the value of a target area corresponding to the target memory address scope in a memory to be the target value according to the memory setting information. According to the memory access control method, device and system, the memory setting command is executed through the processor, the memory setting information is sent to the memory controller, the memory controller executes operation of memory setting, the processor can execute other types of operation, the situation that it takes a great amount of processing time for the processer to conduct memory setting is avoided, and processing efficiency of the processor is improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a memory access control method, device, and system. Background technique [0002] With the continuous development of processor technology, memory access performance has become a major factor affecting processor performance. Among the many memory access modes, the memory setting (memset) class is a more important one. [0003] Memory setting class memory access is usually used to initialize a continuous memory space, and its examples include but are not limited to: specific assignment of continuous elements of the array in the application program, memset library function, and clearing of the frame buffer in the GPU. This type of memory access is mainly characterized by a large memory access range and a simple memory access mode. [0004] However, memory setting-type memory access requires the processor to execute memory access instructions one...

AI Technical Summary

Problems solved by technology

[0004] However, the memory setting type memory access requires the processor to execute the memory access instructions one by one, which takes up a lot of processing time of the processor, resulting in a significant decrease in the processing efficiency of the processor

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