NV10_PGRAPH_CTX_USER
NV_WRITE_CTX(NV10_PGRAPH_CTX_USER, chan->chid << 24);
nvkm_mask(device, NV10_PGRAPH_CTX_USER, 0xff000000, 0x1f000000);
ctx_user = nvkm_rd32(device, NV10_PGRAPH_CTX_USER);
nvkm_mask(device, NV10_PGRAPH_CTX_USER, 0xe000, subchan << 13);
nvkm_wr32(device, NV10_PGRAPH_CTX_USER, ctx_user);
nvkm_mask(device, NV10_PGRAPH_CTX_USER, 0xff000000, chid << 24);
NV10_PGRAPH_CTX_USER,
nvkm_mask(device, NV10_PGRAPH_CTX_USER, 0xff000000, 0x1f000000);