Re: [PATCHv4 01/11] videobuf2: add cache management members

[Tomasz Figa]

On Mon, Mar 9, 2020 at 6:08 PM Sergey Senozhatsky
<senozhatsky@xxxxxxxxxxxx> wrote:
>
> On (20/03/09 17:58), Tomasz Figa wrote:
> [..]
> > > > I see. Hmm, how do I do "test that V4L2_BUF_CAP_SUPPORTS_CACHE_HINTS
> > > > is never set" then?
> > >
> > > Not sure I understand your question. When requesting buffers for non-MMAP memory,
> > > this capability must never be returned. That has nothing to do with a cache_hints
> > > module option.
> >
> > Have we decided that we explicitly don't want to support this for
> > USERPTR memory, even though technically possible and without much
> > extra code needed?
>
> My irrelevant 5 cents (sorry), I'd probably prefer to land MMAP
> first + test drivers patches + v4l-util patches. The effort
> required to land this is getting bigger.

I think that's fine, but we need to make it explicit. :)

Best regards,
Tomasz