Non-coherent (streaming) contig-dma?

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi,

I know certain approaches had been tried to allow use of streaming DMA
(dma_map_single() etc. - i.e., not coherent) in the media drivers, is
there something which can be used at this point (for MMAP method)?

Coherent buffers on many systems are very slow (uncacheable), should
i simply add/replace the necessary calls in dma-contig?

Any other options?

Is there any potential problem there?
-- 
Krzysztof Halasa

Industrial Research Institute for Automation and Measurements PIAP
Al. Jerozolimskie 202, 02-486 Warsaw, Poland
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux Input]     [Video for Linux]     [Gstreamer Embedded]     [Mplayer Users]     [Linux USB Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]
  Powered by Linux