PSL_POW
if (__predict_false(tf->tf_srr1 & PSL_POW) && ci->ci_want_resched)
tf->tf_srr1 &= ~PSL_POW;
mtmsr(mfmsr() | PSL_POW);
tf->tf_srr1 &= ~PSL_POW; /* make cpu_idle exit */
s &= ~PSL_POW; \
#define PSL_WE PSL_POW /* B4.. wait state enable */
#define PSL_601_MASK ~(PSL_VEC|PSL_POW|PSL_ILE|PSL_BE|PSL_RI|PSL_LE)
: "J"(PSL_POW));
msr = (mfmsr() & ~PSL_EE) | PSL_POW;