LOONGARCH_CPUCFG2
res = read_cpucfg(LOONGARCH_CPUCFG2);
config = read_cpucfg(LOONGARCH_CPUCFG2);
c->fpu_vers = (read_cpucfg(LOONGARCH_CPUCFG2) & CPUCFG2_FPVERS) >> 3;
case LOONGARCH_CPUCFG2:
case LOONGARCH_CPUCFG2:
config = read_cpucfg(LOONGARCH_CPUCFG2);
case LOONGARCH_CPUCFG2: