Re: Candidate Linux ABI for Intel AMX and hypothetical new related features

From: Len Brown
Date: Wed Jun 23 2021 - 19:12:09 EST


On Wed, Jun 23, 2021 at 11:07 AM Florian Weimer <fweimer@xxxxxxxxxx> wrote:
>
> * Peter Zijlstra:
>
> > On Fri, May 21, 2021 at 04:44:58PM +0200, Florian Weimer wrote:
> >
> >> And we added an interface for querying x86 CPU features to glibc 2.33
> >> which is completely incompatible with this because it assumes that CPU
> >> features do not change during the lifetime of a process. 8-(
> >
> > How many x86 kernel maintainers signed off on that patch?
>
> I've started a new thread:
>
> x86 CPU features detection for applications (and AMX)
> <https://lore.kernel.org/linux-api/87tulo39ms.fsf@xxxxxxxxxxxxxxxxxxxxxxxx/>

FWIW, I didn't receive it, because you excluded

linux-kernel@xxxxxxxxxxxxxxx

(x86@xxxxxxxxxx is just the actual x86 kernel committers, ISTR)

Len Brown, Intel Open Source Technology Center