Re: [RFC PATCH 00/12] vb2: improve dma-sg, expbuf.

[Hans Verkuil <hverkuil@xs4all.nl>]

On 09/08/2014 04:14 PM, Hans Verkuil wrote:
> The patch series adds an allocation context to dma-sg and uses that to move
> dma_(un)map_sg into the vb2 framework, which is where it belongs.
> 
> Related to that is the addition of buf_prepare/finish _for_cpu variants,
> where the _for_cpu ops are called when the buffer is synced for the cpu, and
> the others are called when it is synced to the device.
> 
> DMABUF export support is added to dma-sg and vmalloc, so now all memory
> models support DMABUF importing and exporting.
> 
> A new flag was added so drivers know when the DMA engine should be
> (re)programmed. This is primarily needed for the dma-sg memory model.

Note: patches for tw68 and cx23885 are missing but can be found in my repo:

http://git.linuxtv.org/cgit.cgi/hverkuil/media_tree.git/log/?h=vb2-prep

Those two drivers were merged/updated just after I posted my patch series :-)

Regards,

	Hans

> 
> Reviews are very welcome.
> 
> Regards,
> 
> 	Hans
> 
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