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arm64: add FEAT_LRCPC3 HWCAP

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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>
This commit is contained in:
Joey Gouly
2023-09-19 17:27:56 +01:00
committed by Catalin Marinas
parent 3accaef1f6
commit 338a835f40
6 changed files with 8 additions and 0 deletions
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arch/arm64/include/uapi/asm/hwcap.h
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@@ -105,5 +105,6 @@
#define HWCAP2_MOPS (1UL << 43)
#define HWCAP2_HBC (1UL << 44)
#define HWCAP2_SVE_B16B16 (1UL << 45)
#define HWCAP2_LRCPC3 (1UL << 46)
#endif /* _UAPI__ASM_HWCAP_H */