x86_64_btop
#define btop(x) (x86_64_btop(x))
return x86_64_btop(adp->va_info.vi_window + offset);
availpages = x86_64_btop(avail_end - avail_start);
psize = x86_64_btop(size);
psize = x86_64_btop(size);