From 5c13f042e73200b50573ace63e1a6b94e2917616 Mon Sep 17 00:00:00 2001 From: Joey Gouly Date: Fri, 10 Dec 2021 16:54:30 +0000 Subject: arm64: cpufeature: add HWCAP for FEAT_AFP Add a new HWCAP to detect the Alternate Floating-point Behaviour feature (FEAT_AFP), introduced in Armv8.7. Also expose this to userspace in the ID_AA64MMFR1_EL1 feature register. Signed-off-by: Joey Gouly Cc: Will Deacon Acked-by: Marc Zyngier Link: https://lore.kernel.org/r/20211210165432.8106-2-joey.gouly@arm.com Signed-off-by: Catalin Marinas --- Documentation/arm64/elf_hwcaps.rst | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'Documentation/arm64/elf_hwcaps.rst') diff --git a/Documentation/arm64/elf_hwcaps.rst b/Documentation/arm64/elf_hwcaps.rst index af106af8e1c0..247728d37911 100644 --- a/Documentation/arm64/elf_hwcaps.rst +++ b/Documentation/arm64/elf_hwcaps.rst @@ -251,6 +251,10 @@ HWCAP2_ECV Functionality implied by ID_AA64MMFR0_EL1.ECV == 0b0001. +HWCAP2_AFP + + Functionality implied by ID_AA64MFR1_EL1.AFP == 0b0001. + 4. Unused AT_HWCAP bits ----------------------- -- cgit v1.2.3-59-g8ed1b