On Wed, 20 Jan 2021 at 16:44, Dave Martin wrote:
>
> On Tue, Jan 19, 2021 at 05:29:05PM +0100, Ard Biesheuvel wrote:
> > On Tue, 19 Jan 2021 at 17:01, Dave Martin wrote:
> > >
> > > On Fri, Dec 18, 2020 at 06:01:05PM +0100, Ard Biesheuvel wrote:
> > > > Kernel mode NEON can be used in task or sof
On Tue, Jan 19, 2021 at 05:29:05PM +0100, Ard Biesheuvel wrote:
> On Tue, 19 Jan 2021 at 17:01, Dave Martin wrote:
> >
> > On Fri, Dec 18, 2020 at 06:01:05PM +0100, Ard Biesheuvel wrote:
> > > Kernel mode NEON can be used in task or softirq context, but only in
> > > a non-nesting manner, i.e., so
On Tue, 19 Jan 2021 at 17:01, Dave Martin wrote:
>
> On Fri, Dec 18, 2020 at 06:01:05PM +0100, Ard Biesheuvel wrote:
> > Kernel mode NEON can be used in task or softirq context, but only in
> > a non-nesting manner, i.e., softirq context is only permitted if the
> > interrupt was not taken at a po
On Fri, Dec 18, 2020 at 06:01:05PM +0100, Ard Biesheuvel wrote:
> Kernel mode NEON can be used in task or softirq context, but only in
> a non-nesting manner, i.e., softirq context is only permitted if the
> interrupt was not taken at a point where the kernel was using the NEON
> in task context.
>
Kernel mode NEON can be used in task or softirq context, but only in
a non-nesting manner, i.e., softirq context is only permitted if the
interrupt was not taken at a point where the kernel was using the NEON
in task context.
This means all users of kernel mode NEON have to be aware of this
limita
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