Re: [RFC][PATCHv2 11/12] videobuf2: add begin/end cpu_access callbacks to dma-sg

[Sergey Senozhatsky]

On (20/02/19 09:35), Hans Verkuil wrote:
> On 2/4/20 3:56 AM, Sergey Senozhatsky wrote:
> > Provide begin_cpu_access() and end_cpu_access() dma_buf_ops
> > callbacks for cache synchronisation on exported buffers.
> > 
> > V4L2_FLAG_MEMORY_NON_CONSISTENT has no effect on dma-sg buffers.
> > dma-sg allocates memory using the page allocator directly, so
> > there is no memory consistency guarantee.
> 
> This should also be a comment in the code.

OK.

	-ss