On Mon, Oct 17, 2022 at 04:25:19PM +0100, Mark Brown wrote: > FEAT_SVE2p1 introduces a number of new SVE instructions. Since there is no > new architectural state added kernel support is simply a new hwcap which > lets userspace know that the feature is supported. > > Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> > --- > Documentation/arm64/elf_hwcaps.rst | 3 +++ > Documentation/arm64/sve.rst | 1 + > arch/arm64/include/asm/hwcap.h | 1 + > arch/arm64/include/uapi/asm/hwcap.h | 1 + > arch/arm64/kernel/cpufeature.c | 1 + > arch/arm64/kernel/cpuinfo.c | 1 + > arch/arm64/tools/sysreg | 1 + > 7 files changed, 9 insertions(+) > > diff --git a/Documentation/arm64/elf_hwcaps.rst b/Documentation/arm64/elf_hwcaps.rst > index a82b2cdff680..6fed84f935df 100644 > --- a/Documentation/arm64/elf_hwcaps.rst > +++ b/Documentation/arm64/elf_hwcaps.rst > @@ -281,6 +281,9 @@ HWCAP2_CSSC > HWCAP2_RPRFM > Functionality implied by ID_AA64ISAR2_EL1.RPRFM == 0b0001. > > +HWCAP2_SVE2P1 > + Functionality implied by ID_AA64ZFR0_EL1.SVEver == 0b0010. It looks like our architect ran out of meaningful names. I guess we should just follow them in the kernel. Reviewed-by: Catalin Marinas <catalin.marinas@xxxxxxx>
