CMP_HEADER
acomp_request_set_src_nondma(d->cr, d->cmp + CMP_HEADER,
need = DIV_ROUND_UP(data[thr].cmp_len + CMP_HEADER,
off < CMP_HEADER + data[thr].cmp_len;
CMP_HEADER, PAGE_SIZE)
acomp_request_set_dst_nondma(d->cr, d->cmp + CMP_HEADER,
CMP_SIZE - CMP_HEADER);
off < CMP_HEADER + data[thr].cmp_len;