Re: [RFCv2 PATCH 0/9] Integration of videobuf2 with dmabuf

[Laurent Pinchart <laurent.pinchart@ideasonboard.com>]

Hi Sumit,

On Tuesday 20 March 2012 20:45:00 Semwal, Sumit wrote:
> On Tue, Mar 6, 2012 at 5:08 PM, Tomasz Stanislawski wrote:
> > Hello everyone,
> > This patchset is an incremental patch to patchset created by Sumit Semwal
> > [1]. The patches are dedicated to help find a better solution for support
> > of buffer sharing by V4L2 API.  It is expected to start discussion on the
> > final installment for dma-buf in vb2-dma-contig allocator.  Current
> > version of the patches contain little documentation. It is going to be
> > fixed after achieving consensus about design for buffer exporting.
> >  Moreover the API between vb2-core and the allocator should be revised.
> 
> I like your approach in general quite a bit.
> 
> May I request you, though, to maybe split it over into two portions -
> the preparation patches, and the exporter portion. This would help as
> the exporter portion is quite dependent on dma_get_pages and
> dma-mapping patches. (Maybe also indirectly on DRM prime?)
> 
> With that split, we could try to target the preparation patches for
> 3.4 while we continue to debate on the exporter patches? I just saw
> the dma-mapping pull request from Marek, so the dependencies might
> become available soon.
> 
> If you agree, then I can post the patch version of my 'v4l2 as dma-buf
> user' patches, [except the patch that you've included in this series]
> so we can try to hit 3.4 merge window.

I've raised a couple of questions regarding the first patch, I'm afraid we 
will likely miss 3.4 :-/ If you consider important to get the patches in 3.4 I 
can try working with Tomasz to fix them ASAP.

-- 
Regards,

Laurent Pinchart