On Fri, Oct 27, 2017 at 11:51:07AM +0100, Dave P Martin wrote: > This patch enables detection of hardware SVE support via the > cpufeatures framework, and reports its presence to the kernel and > userspace via the new ARM64_SVE cpucap and HWCAP_SVE hwcap > respectively. > > Userspace can also detect SVE using ID_AA64PFR0_EL1, using the > cpufeatures MRS emulation. > > When running on hardware that supports SVE, this enables runtime > kernel support for SVE, and allows user tasks to execute SVE > instructions and make of the of the SVE-specific user/kernel > interface extensions implemented by this series. > > Signed-off-by: Dave Martin <Dave.Martin@xxxxxxx> > Reviewed-by: Suzuki K Poulose <suzuki.poulose@xxxxxxx> > Cc: Catalin Marinas <catalin.marinas@xxxxxxx> Reviewed-by: Catalin Marinas <catalin.marinas@xxxxxxx>
