Computer, device control system, and device control method for direct memory access
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United States of America Patent
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Nov 19, 2019
Grant Date -
Jan 25, 2018
app pub date -
Jan 15, 2016
filing date -
Jan 16, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
To realize DMA data transfer between a host computer and another computer even in the case that the host computer and the another computer are each equipped with a CPU, a memory, and so forth independently. A computer communicably connected with a first computer including a first memory and a driver for controlling a device, the computer comprising: the device; and a second memory, wherein a first DMA transfer is executed based on a DMA transfer request received from the driver, a second DMA transfer is executed to transfer data existing at a transfer destination address of the first DMA transfer between the first memory and the second memory, and the transfer destination address is detected as a result of executing the first DMA transfer.
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