https://bugs.freedesktop.org/show_bug.cgi?id=84878

--- Comment #19 from Alban Browaeys <[email protected]> ---
(In reply to Raymond from comment #18)
> not only hwptr not icrement by dma brust
> 
> the time elasped varies from 8 to 18 for one frame which is quite unstable
> 

All of the values varies likewise with or without the change to the kernel. I
mean even with vanilla (ie the one were none of the "available" wanted values
miss : 0, 1024, 2048, 3072.
min is around 7 and max around 22 in new_us-last_us and time_us-kast_time.

What is wrong with the results ? I mean I do not know what you check for  and
why.

about the dma burst: its size is not fixed afaik, the transfer width is. Plus
the dma burst if too small a size wil be split into a sequence of single
transfers.

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