]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
arm64/hwcap: Add hwcap for FEAT_LSFE
authorMark Brown <broonie@kernel.org>
Mon, 18 Aug 2025 19:21:18 +0000 (20:21 +0100)
committerWill Deacon <will@kernel.org>
Tue, 16 Sep 2025 18:55:11 +0000 (19:55 +0100)
commit220928e52cb03d223b3acad3888baf0687486d21
treeebe2dfd605c608f9258085fd3a06157480a88f3a
parent8f5ae30d69d7543eee0d70083daf4de8fe15d585
arm64/hwcap: Add hwcap for FEAT_LSFE

FEAT_LSFE (Large System Float Extension), providing atomic floating point
memory operations, is optional from v9.5. This feature adds no new
architectural stare and we have no immediate use for it in the kernel so
simply provide a hwcap for it to support discovery by userspace.

Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
Documentation/arch/arm64/elf_hwcaps.rst
arch/arm64/include/asm/hwcap.h
arch/arm64/include/uapi/asm/hwcap.h
arch/arm64/kernel/cpufeature.c
arch/arm64/kernel/cpuinfo.c