[Intel-gfx] Small execbuf coherency fixes

[Joonas Lahtinen]

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.

Regards, Joonas

> -Chris
> 
-- 
Joonas Lahtinen
Open Source Technology Center
Intel Corporation