Title:
DMA CONTROLLER AND HETEROGENEOUS ACCELERATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/143237
Kind Code:
A1
Abstract:
A DMA controller and a heterogeneous acceleration system. The DMA controller comprises a feedback module (100), a descriptor control module (200), and a data interface module (300), wherein the data interface module (300) comprises a first sub-module (301) and a second sub-module (302); the first sub-module (301) is used for establishing communication connection to a first data processing device, and the second sub-module (302) is used for establishing communication connection to a DMA migration device (402); the descriptor control module (200) is used for receiving a data migration request sent by the first data processing device and analyzing the data migration request to obtain a descriptor; the descriptor is sent to the DMA migration device (402), so that the DMA migration device (402) performs data migration between a second data processing device and an acceleration device (401) based on the descriptor; and the feedback module (100) is used for receiving migration completed notification information fed back by the DMA migration device (402) and notifying the first data processing device that the data migration is completed. According to the DMA controller, the flexibility of DMA can be improved.
Inventors:
WAGN FENG (CN)
ZHANG JINGDONG (CN)
ZHANG JINGDONG (CN)
Application Number:
PCT/CN2019/103683
Publication Date:
July 16, 2020
Filing Date:
August 30, 2019
Export Citation:
Assignee:
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD (CN)
International Classes:
G06F13/28
Foreign References:
| CN109739786A | 2019-05-10 | |||
| CN103793342A | 2014-05-14 | |||
| CN107562659A | 2018-01-09 | |||
| CN106547709A | 2017-03-29 | |||
| CN105323184A | 2016-02-10 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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