CTRL_SET_UM        44 arch/x86/oprofile/op_model_amd.c #define CTRL_SET_UM(val, m) (val |= (m << 8))
CTRL_SET_UM        40 arch/x86/oprofile/op_model_ppro.c #define CTRL_SET_UM(val, m) (val |= (m << 8))