Sakari Ailus writes:
> I sent the set here under the subject "[RFC RESEND 00/11] vb2: Handle user
> cache hints, allow drivers to choose cache coherency" last September.
Thanks, I will look at this.
Unfortunately, I need CPU access to the buffers, it's just that coherent
On Mon, Apr 04, 2016 at 02:53:29PM +0200, Krzysztof Hałasa wrote:
> 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)?
>
>
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