This solves a problem when you have a big memory chunk of which some
regions are bound to images. If the image is destroyed, currently the
aux-tt mapping stays and prevent any new image aux-tt mapping within
that region, until the memory is freed.
This maps & unmaps the aux-tt region at respectively bind & destroy
time, so that the memory chunks can be map through aux-tt.
If there is aliasing of memory to 2 different images, then the first
one "wins" the aux mapping and gets compression support. The second
one doesn´t.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Fixes: ee6e2bc4a3 ("anv: Place images into the aux-map when safe to do so")
Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26335>
Lionel Landwerlin
7b87e1afbc