Our validation code doesn't need to know which bytes are accessed. It only needs to know which grfs were accessed by an element. This also helps to easily handle the Xe2 register size change. Backport-to: 24.2 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28479>