i965/mt: Disable HiZ when sharing depth buffer externally (v2)

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.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=98329
Reviewed-by: Topi Pohjolainen <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
Cc: Nanley Chery <[email protected]
Cc: Haixia Shi <[email protected]>
Cc: [email protected]

0 files changed, 0 insertions, 0 deletions