When texture buffers are used as images in compute shaders, the guest
never sees the modified data since the TBO is always marked as clean.
Fixes most dEQP-GLES31.functional.image_load_store.buffer.* tests.
Example test cases:
dEQP-GLES31.functional.image_load_store.buffer.load_store.r32ui
dEQP-GLES31.functional.image_load_store.buffer.qualifiers.coherent_r32f
dEQP-GLES31.functional.image_load_store.buffer.format_reinterpret.rgba8_rgba8ui
Note: virglrenderer side patch also needed to bind TBOs correctly
Reviewed-by: Dave Airlie <airlied@redhat.com>
9c136e8a07