gf100_ram_train
gf100_ram_train(fuc, 0x000c1001);
gf100_ram_train(fuc, 0x80021001);
gf100_ram_train(fuc, 0x80081001);
gf100_ram_train(fuc, 0x800e1008);
gf100_ram_train(fuc, 0x010c1001);