Data copying method, direct memory access controller, and computer system
Abstract:
The present invention provides a data copying method, a direct memory access controller, and a computer system. The data copying method of embodiments of the present invention includes reading, by a DMA controller, target data from storage space corresponding to a source physical address of the target data by using an ACP, where the storage space corresponding to the source physical address includes a first buffer; and storing, by the DMA controller, the target data into storage space corresponding to a destination physical address of the target data by using the ACP, where the storage space corresponding to the destination physical address includes a second buffer. The embodiments of the present invention can lower CPU usage.
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