MPI_L2PCFG_REG_SHIFT
#define MPI_L2PCFG_REG_MASK (0x3f << MPI_L2PCFG_REG_SHIFT)
if (reg > (MPI_L2PCFG_REG_MASK >> MPI_L2PCFG_REG_SHIFT))
val = (reg << MPI_L2PCFG_REG_SHIFT);