/*
* Reconfigure specified per-CPU timer on other CPU. Called from IPI handler.
*/
inline static int
doconfigtimer(int i)
{
tc *conf;
conf = DPCPU_PTR(configtimer);
if (atomic_load_acq_int(*conf + i)) {
if (i == 0 ? timer1hz : timer2hz)
et_start(timer[i], NULL, &timerperiod[i]);
else
et_stop(timer[i]);
atomic_store_rel_int(*conf + i, 0);
return (1);
}
return (0);
}
static void
pefs_aesni_enter(struct pefs_session *xses)
{
struct pefs_aesni_ses *ses = &xses->o.ps_aesni;
if (is_fpu_kern_thread(0)) {
ses->fpu_saved = 0;
return;
}
critical_enter();
ses->fpu_ctx = (void *)atomic_swap_ptr(
(volatile void *)DPCPU_PTR(pefs_aesni_fpu), (uintptr_t)NULL);
if (ses->fpu_ctx != NULL) {
ses->td = curthread;
ses->fpu_cpuid = curcpu;
fpu_kern_enter(ses->td, ses->fpu_ctx, FPU_KERN_NORMAL);
ses->fpu_saved = 1;
} else {
ses->fpu_saved = -1;
}
critical_exit();
}