This change changes the type for GUPSGen::memSize to uint64_t. Previously uint32_t was used that would overflow for memories bigger than 4GB. Change-Id: I45d992b166a0dee2322c03e40beef1eee73e1855 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/52903 Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Reviewed-by: Gabe Black <gabe.black@gmail.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>