igt/gem_mmap_gtt: Checking tiling pattern requires known swizzling

As the swizzling is baked into the tiling pattern, the swizzling has to
be consistent across the entire GTT mmap for our tests to work. However,
under L-shaped memory configurations on older architectures, the
swizzling varied depending on which region the page found itself in --
invalidating our assumptions and ability to predict the tiling pattern.

Reported-by: Adric Blake <promarbler14@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106848
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

0 files changed, 0 insertions, 0 deletions