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geek101
Journeyman III

ATI DMA concurrency

Which ATI cards can DMA data to/from host memory concurently.

Will Radeon HD 5550/5570 be able to do that?.

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pboudier
Staff

all cards since hd2xxx have a separate asynchronous DMA engine.

Pierre B.

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my query is if the card can initiate dma read/read at the same time?. or will it serialize all requests?. Can reads and write happen in parellel?.

 

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Originally posted by: geek101 my query is if the card can initiate dma read/read at the same time?. or will it serialize all requests?. Can reads and write happen in parellel?.


it is hard to answer that question because there are many restrictions; but it is possible to have both read/write, although you need to use both 3d engine and dma engine to achieve this.

if you have specific request for your application, please send an email to devrel@amd.com (and CC pierre.boudier@amd.com)

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