[PATCH] arm64: Filter out SVE hwcaps when FEAT_SVE isn't implemented
Marc Zyngier
maz at kernel.org
Fri Jan 3 10:00:43 PST 2025
On Fri, 03 Jan 2025 17:39:39 +0000,
Catalin Marinas <catalin.marinas at arm.com> wrote:
>
> On Fri, Jan 03, 2025 at 05:20:05PM +0000, Catalin Marinas wrote:
> > On Fri, Jan 03, 2025 at 02:26:35PM +0000, Marc Zyngier wrote:
> > > @@ -3022,6 +3027,13 @@ static const struct arm64_cpu_capabilities arm64_features[] = {
> > > .matches = match, \
> > > }
> > >
> > > +#define HWCAP_CAP_MATCH_ID(match, reg, field, min_value, cap_type, cap) \
> > > + { \
> > > + __HWCAP_CAP(#cap, cap_type, cap) \
> > > + HWCAP_CPUID_MATCH(reg, field, min_value) \
> > > + .matches = match, \
> > > + }
> >
> > Do we actually need this macro?
>
> Ignore me, we still need this macro as HWCAP_CAP_MATCH does not take all
> the arguments. Maybe not the read_scoped_sysreg() change though.
Ah, I just replied to your earlier email. Agreed on avoiding the
read_scoped_sysreg() change, replacing it with system_supports_sve().
I'll respin the change now.
M.
--
Without deviation from the norm, progress is not possible.
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