From f5e035f8694c3bdddc66ea46ecda965ee6853718 Mon Sep 17 00:00:00 2001 From: Suzuki K Poulose Date: Wed, 11 Oct 2017 14:01:02 +0100 Subject: arm64: Expose support for optional ARMv8-A features ARMv8-A adds a few optional features for ARMv8.2 and ARMv8.3. Expose them to the userspace via HWCAPs and mrs emulation. SHA2-512 - Instruction support for SHA512 Hash algorithm (e.g SHA512H, SHA512H2, SHA512U0, SHA512SU1) SHA3 - SHA3 crypto instructions (EOR3, RAX1, XAR, BCAX). SM3 - Instruction support for Chinese cryptography algorithm SM3 SM4 - Instruction support for Chinese cryptography algorithm SM4 DP - Dot Product instructions (UDOT, SDOT). Cc: Will Deacon Cc: Mark Rutland Cc: Dave Martin Cc: Marc Zyngier Reviewed-by: Catalin Marinas Signed-off-by: Suzuki K Poulose Signed-off-by: Will Deacon --- arch/arm64/include/uapi/asm/hwcap.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch/arm64/include/uapi/asm') diff --git a/arch/arm64/include/uapi/asm/hwcap.h b/arch/arm64/include/uapi/asm/hwcap.h index 4b9344cba83a..a4bad90a3fa3 100644 --- a/arch/arm64/include/uapi/asm/hwcap.h +++ b/arch/arm64/include/uapi/asm/hwcap.h @@ -36,5 +36,10 @@ #define HWCAP_FCMA (1 << 14) #define HWCAP_LRCPC (1 << 15) #define HWCAP_DCPOP (1 << 16) +#define HWCAP_SHA3 (1 << 17) +#define HWCAP_SM3 (1 << 18) +#define HWCAP_SM4 (1 << 19) +#define HWCAP_ASIMDDP (1 << 20) +#define HWCAP_SHA512 (1 << 21) #endif /* _UAPI__ASM_HWCAP_H */ -- cgit v1.2.3