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authorAmit Daniel Kachhap <amit.kachhap@arm.com>2022-11-17 08:37:21 +0300
committerRussell King (Oracle) <rmk+kernel@armlinux.org.uk>2022-11-28 14:57:33 +0300
commitce4835497c20991574fde492ab37ec666563d3e4 (patch)
treefc5b68f7321f1e1b76bcf147275fe343ea2318e2 /arch/arm/include
parent62ea0d873af3ef0a7e8387b67241ad43e3d377e1 (diff)
downloadlinux-ce4835497c20991574fde492ab37ec666563d3e4.tar.xz
ARM: 9270/1: vfp: Add hwcap for FEAT_FHM
Floating-point half-precision multiplication (FHM) is a feature present in AArch32 state for Armv8 and is represented by ISAR6.FHM identification register. This feature denotes the presence of VFMAL and VMFSL instructions and hence adding a hwcap will enable the userspace to check it before trying to use those instructions. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Amit Daniel Kachhap <amit.kachhap@arm.com> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/include')
-rw-r--r--arch/arm/include/uapi/asm/hwcap.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/include/uapi/asm/hwcap.h b/arch/arm/include/uapi/asm/hwcap.h
index 64f3608e6f1b..3d168d4f2a51 100644
--- a/arch/arm/include/uapi/asm/hwcap.h
+++ b/arch/arm/include/uapi/asm/hwcap.h
@@ -31,6 +31,7 @@
#define HWCAP_FPHP (1 << 22)
#define HWCAP_ASIMDHP (1 << 23)
#define HWCAP_ASIMDDP (1 << 24)
+#define HWCAP_ASIMDFHM (1 << 25)
/*
* HWCAP2 flags - for elf_hwcap2 (in kernel) and AT_HWCAP2