On 2018-07-18 11:12:10 [+0200], To Dave Martin wrote:
> > > - if (may_use_simd()) {
> > > + if (!IS_ENABLED(CONFIG_PREEMPT_RT_BASE) && may_use_simd()) {
> >
> > I suspect this is wrong -- see comments on the commit message.
I'm sorry, I pressed send too early, I was aiming for the draft folder.
So yes, based on that EFI that might be interruptible, let me try to
look at the initial issue again and maybe I get another idea how to deal
with this.
One question: If EFI is interruptible that means, we call into EFI - how
do we get out? Does EFI enable interrupts and the kernel receives an
interrupt and treats this EFI call like a regular context switch?
> > > kernel_neon_begin();
> > > } else {
> >
> > [...]
> >
> > Cheers
> > ---Dave
Sebastian
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