NV10_PGRAPH_FFINTFC_ST2_DL
st2_dl = nvkm_rd32(device, NV10_PGRAPH_FFINTFC_ST2_DL);
nvkm_wr32(device, NV10_PGRAPH_FFINTFC_ST2_DL, inst);
nvkm_wr32(device, NV10_PGRAPH_FFINTFC_ST2_DL, st2_dl);