- clear_thread_flag(TIF_POLLING_NRFLAG);
- smp_mb__after_clear_bit();
-
- while (!need_resched()) {
- unsigned long pstate;
-
- /* Disable interrupts. */
- __asm__ __volatile__(
- "rdpr %%pstate, %0\n\t"
- "andn %0, %1, %0\n\t"
- "wrpr %0, %%g0, %%pstate"
- : "=&r" (pstate)
- : "i" (PSTATE_IE));
-
- if (!need_resched())
- sun4v_cpu_yield();
-
- /* Re-enable interrupts. */
- __asm__ __volatile__(
- "rdpr %%pstate, %0\n\t"
- "or %0, %1, %0\n\t"
- "wrpr %0, %%g0, %%pstate"
- : "=&r" (pstate)
- : "i" (PSTATE_IE));
- }