gru_get_tri
gru_mesq(cb, mqd->mq_gpa, gru_get_tri(mhdr), 1, IMA);
gru_vstore(cb, m, gru_get_tri(mesg), XTYPE_CL, 1, 1,
gru_vstore(cb, m, gru_get_tri(mesg), XTYPE_CL, lines, 1, IMA);
gru_mesq(cb, mqd->mq_gpa, gru_get_tri(mhdr), clines, IMA);
gru_vload_phys(cb, gpa, gru_get_tri(dsr), iaa, IMA);
gru_bcopy(cb, src_gpa, dest_gpa, gru_get_tri(dsr),
gru_vload(cb, uv_gpa(&word0), gru_get_tri(dsr), XTYPE_DW, 1, 1, IMA);
gru_vstore(cb, uv_gpa(&word1), gru_get_tri(dsr), XTYPE_DW, 1, 1, IMA);