• Suzuki K Poulose's avatar
    arm64: Expose Arm v8.4 features · 7206dc93
    Suzuki K Poulose authored
    Expose the new features introduced by Arm v8.4 extensions to
    Arm v8-A profile.
    
    These include :
    
     1) Data indpendent timing of instructions. (DIT, exposed as HWCAP_DIT)
     2) Unaligned atomic instructions and Single-copy atomicity of loads
        and stores. (AT, expose as HWCAP_USCAT)
     3) LDAPR and STLR instructions with immediate offsets (extension to
        LRCPC, exposed as HWCAP_ILRCPC)
     4) Flag manipulation instructions (TS, exposed as HWCAP_FLAGM).
    
    Cc: Catalin Marinas <catalin.marinas@arm.com>
    Cc: Will Deacon <will.deacon@arm.com>
    Cc: Mark Rutland <mark.rutland@arm.com>
    Reviewed-by: default avatarDave Martin <dave.martin@arm.com>
    Signed-off-by: default avatarSuzuki K Poulose <suzuki.poulose@arm.com>
    Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
    7206dc93
hwcap.h 1.65 KB