Fix rendering issues on BDW and SKL.
Fixes: 0288fe8d04
("i965/miptree: Use the correct BLT pitch")
Fixes the following regressions seen
exclusively on SKL:
* KHR-GL46.texture_barrier_ARB.disjoint-texels
* KHR-GL46.texture_barrier_ARB.overlapping-texels
* KHR-GL46.texture_barrier.disjoint-texels
* KHR-GL46.texture_barrier.overlapping-texels
and both on BDW and SKL:
* GTF-GL46.gtf21.GL2FixedTests.buffer_corners.buffer_corners
* GTF-GL46.gtf21.GL2FixedTests.stencil_plane_corners.stencil_plane_corners
v2: Note the fixed tests (Andres).
Don't cause failures with multisampled buffers (Andres).
Don't hamper SKL GT4 (Ken).
v3: Fix the Fixes tag (Dylan).
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107359
Cc: <mesa-stable@lists.freedesktop.org>
Tested-by: Andres Gomez <agomez@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
(cherry picked from commit 6d80b0b4ba)
461745ae38