CTRL_SET_USR       42 arch/x86/oprofile/op_model_amd.c #define CTRL_SET_USR(val, u) (val |= ((u & 1) << 16))
CTRL_SET_USR       38 arch/x86/oprofile/op_model_ppro.c #define CTRL_SET_USR(val, u) (val |= ((u & 1) << 16))