Re: [PATCH 0/4] cover-letter: Allow MMIO regions to be exported through dmabuf

[Jason Gunthorpe <jgg@nvidia.com>]

On Tue, Mar 04, 2025 at 03:29:42PM +0100, Christian König wrote:
> Am 26.02.25 um 14:38 schrieb Jason Gunthorpe:
> > On Wed, Feb 26, 2025 at 07:55:07AM +0000, Kasireddy, Vivek wrote:
> >
> >>> Is there any update or ETA for the v3? Are there any ways we can help?
> >> I believe Leon's series is very close to getting merged. Once it
> >> lands, this series can be revived.
> > The recent drama has made what happens next unclear.
> >
> > I would like it if interested parties could contribute reviews to
> > Leon's v7 series to help it along.
> 
> I think demonstrating how any new interface would work with the
> existing importers/exporters would help.

I can see that, but also it is a huge amount of work to make trial
changes to all sorts of subsystems :\

> > We may want to start considering pushing ahead with this patch series
> > and using the usual hack of abusing the scatterlist in the mean time.
> 
> That works for me as well.
> 
> I think when we should get away from scatterlist then that should be
> a separate set of patches or maybe call it a separate project to get
> done for all DMA-buf parties.
> 
> E.g. propose something like an iterator based interface and
> demonstrate that V4L and a DRM driver can live with that and that
> this approach works like expected.

Yeah, maybe so. We are some ways from that yet..

Jason