bo size            = 704512 (172 pages)
window0 (fw)   end = 262400
window1 (stack) end = 327936
window2 (DATA)  end = 704768
DATA window overruns bo end by = 256 bytes
CONFIRMED: vce_v2_0 vcpu_bo is AMDGPU_VCE_FIRMWARE_OFFSET (256) bytes short (DF-4524 v3 shape)