[PATCH v2] arm64: Expose support for optional ARMv8-A features

Will Deacon
2017-10-11T12:37:05Z

On Tue, Oct 10, 2017 at 03:35:30PM +0100, Catalin Marinas wrote:
> On Tue, Oct 10, 2017 at 10:53:10AM +0100, Suzuki K. Poulose wrote:
> > diff --git a/arch/arm64/include/uapi/asm/hwcap.h b/arch/arm64/include/uapi/asm/hwcap.h
> > index 4b9344cba83a..a4bad90a3fa3 100644
> > --- a/arch/arm64/include/uapi/asm/hwcap.h
> > +++ b/arch/arm64/include/uapi/asm/hwcap.h
> > @@ -36,5 +36,10 @@
> > #define HWCAP_FCMA (1 << 14)
> > #define HWCAP_LRCPC (1 << 15)
> > #define HWCAP_DCPOP (1 << 16)
> > +#define HWCAP_SHA3 (1 << 17)
> > +#define HWCAP_SM3 (1 << 18)
> > +#define HWCAP_SM4 (1 << 19)
> > +#define HWCAP_ASIMDDP (1 << 20)
> > +#define HWCAP_SHA512 (1 << 21)
>
> We may be getting some conflicts around these with additional patches
> coming in but not hard to solve. Anyway, whether we are getting pointer
> authentication in or not (probably the latter), I would really like to
> get the first patch in that series merged:
>
> http://lkml.kernel.org/r/1500480092-28480-2-git-send-email-mark.rutland at arm.com

Suzuki -- can you take Mark's patch above and update the documentation to
include the new hwcaps you've added, please?

Will