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| author | Joey Gouly <joey.gouly@arm.com> | 2021-12-10 19:54:30 +0300 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2021-12-13 21:52:59 +0300 |
| commit | 5c13f042e73200b50573ace63e1a6b94e2917616 (patch) | |
| tree | de22698982896d4808630041ca8797f2b522ca3b /arch/arm64/kernel/cpuinfo.c | |
| parent | d58071a8a76d779eedab38033ae4c821c30295a5 (diff) | |
| download | linux-5c13f042e73200b50573ace63e1a6b94e2917616.tar.xz | |
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 <joey.gouly@arm.com>
Cc: Will Deacon <will@kernel.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211210165432.8106-2-joey.gouly@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/kernel/cpuinfo.c')
| -rw-r--r-- | arch/arm64/kernel/cpuinfo.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c index 6e27b759056a..0e52014019f6 100644 --- a/arch/arm64/kernel/cpuinfo.c +++ b/arch/arm64/kernel/cpuinfo.c @@ -95,6 +95,7 @@ static const char *const hwcap_str[] = { [KERNEL_HWCAP_BTI] = "bti", [KERNEL_HWCAP_MTE] = "mte", [KERNEL_HWCAP_ECV] = "ecv", + [KERNEL_HWCAP_AFP] = "afp", }; #ifdef CONFIG_COMPAT |