[Intel-gfx] Small execbuf coherency fixes

[Chris Wilson]

On Fri, Aug 12, 2016 at 01:01:37PM +0300, Joonas Lahtinen wrote:
> On ke, 2016-08-10 at 12:54 +0100, Chris Wilson wrote:
> > Execbuf suffers from a coherency problem which in theory is handled by
> > the prepare for direct access implemented by pwrite. The issue being not
> > only is that function non-existent (implemented inline for pwrite) it is
> > missing a barrier or two.
> 
> I already provided review feedback for this series, so after that is
> applied I'll proceed to review. Don't forget to CC me.

Just added the r-b tags. I did not agree with the minor changes in the
context of the larger series.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre