arm64: add FEAT_LRCPC3 HWCAP
authorJoey Gouly <joey.gouly@arm.com>
Tue, 19 Sep 2023 16:27:56 +0000 (17:27 +0100)
committerCatalin Marinas <catalin.marinas@arm.com>
Fri, 13 Oct 2023 18:11:35 +0000 (19:11 +0100)
commit338a835f40a849cd89b993e342bd9fbd5684825c
tree6766e1508a0c5e4dcdf4c779c2a8d3a383f309a7
parent3accaef1f61e0c5531ae9e92ff0d66981cdf1516
arm64: add FEAT_LRCPC3 HWCAP

FEAT_LRCPC3 adds more instructions to support the Release Consistency model.
Add a HWCAP so that userspace can make decisions about instructions it can use.

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20230919162757.2707023-2-joey.gouly@arm.com
[catalin.marinas@arm.com: change the HWCAP number]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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
arch/arm64/tools/sysreg