Function vfp_restore_state

freebsd/arm64/arm64/vfp.c:202–228

}

void
vfp_restore_state(void)
{
	struct pcb *curpcb;
	u_int cpu;

	critical_enter();

	cpu = PCPU_GET(cpuid);
	curpcb = curthread->td_pcb;
	curpcb->pcb_fpflags |= PCB_FP_STARTED;

	vfp_enable();

	/*
	 * If the previous thread on this cpu to use the VFP was not the
	 * current thread, or the current thread last used it on a different
	 * cpu we need to restore the old state.
	 */
	if (PCPU_GET(fpcurthread) != curthread || cpu != curpcb->pcb_vfpcpu) {
		vfp_restore(curthread->td_pcb->pcb_fpusaved);
		PCPU_SET(fpcurthread, curthread);
		curpcb->pcb_vfpcpu = cpu;
	}

	critical_exit();
}

void
vfp_init(void)