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SubjectRe: [RFC][PATCH 02/15] videobuf2: handle V4L2 buffer cache flags
On (20/01/22 10:39), Sergey Senozhatsky wrote:
> [..]
> > > }
> > >
> > > +static void set_buffer_cache_hints(struct vb2_queue *q,
> > > + struct vb2_buffer *vb,
> > > + struct v4l2_buffer *b)
> > > +{
> > > + vb->need_cache_sync_on_prepare = 1;
> > > +
> > > + if (q->dma_dir != DMA_TO_DEVICE)
> >
> > What should be done when dma_dir == DMA_BIDIRECTIONAL?
>

[..]

> We probably cannot enforce any other behavior here. Am I missing
> something?

Never mind. I got your point.

-ss

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