NV04_PGRAPH_FIFO
nvkm_mask(device, NV04_PGRAPH_FIFO, 0x00000001, 0x00000000);
nvkm_mask(device, NV04_PGRAPH_FIFO, 0x00000001, 0x00000001);
nvkm_wr32(device, NV04_PGRAPH_FIFO, 0x00000001);
nvkm_wr32(device, NV04_PGRAPH_FIFO, 0x00000001);
nvkm_mask(device, NV04_PGRAPH_FIFO, 0x00000001, 0x00000001);
nvkm_mask(device, NV04_PGRAPH_FIFO, 0x00000001, 0x00000000);
nvkm_mask(device, NV04_PGRAPH_FIFO, 0x00000001, 0x00000000);
nvkm_mask(device, NV04_PGRAPH_FIFO, 0x00000001, 0x00000001);
nvkm_wr32(device, NV04_PGRAPH_FIFO, 0x00000001);
nvkm_wr32(device, NV04_PGRAPH_FIFO, 0x00000001);