Information processing apparatus, information processing method, program for executing the information processing method, storage medium storing the program, DMA controller, DMA transfer method, program for executing the DMA transfer method, and storage medium storing the program

摘要

Disclosed herein is an information processing apparatus that transfers information, using direct memory access (DMA), between a first storage section in an information processing system and a second storage section in an information transfer system. The information processing system includes the first storage section for storing the information, and a control section. The information transfer system includes: the second storage section for storing descriptor information indicating the location at which the information is stored in the first storage section and the size of the information; and a DMA transfer section for DMA transferring the information between the first storage section and the second storage section based on the descriptor information. The DMA transfer section DMA transfers the descriptor information concerning the DMA transferred information from the second storage section to the first storage section. The control section loads the descriptor information from the first storage section.