[Mesa-stable] [PATCH 2/2] i965/mt: Disable HiZ when sharing depth buffer externally (v2)

[Emil Velikov]

Hi Chad,

On 10 December 2016 at 00:40, Chad Versace <chadversary at chromium.org> wrote:
> intel_miptree_make_shareable() discarded and disabled CCS. Fix it so
> that it discards and disables HiZ too.
>
> Fixes dEQP-EGL.functional.image.render_multiple_contexts.gles2_renderbuffer_depth16_depth_buffer
> on Skylake.
>
> v2: Actually do what the commit message says. Discard the HiZ buffer.
>
Afaict the commit depends (at least partially) on
0041169cacb300a882b4dc38cd341f98bf2a7c38 and the ~4 follow-up commits
from Ben.
If I'm mistaking and please send a backport for stable.

Thanks
Emil