• Will Deacon's avatar
    ARM: hwcaps: add new HWCAP defines for ARMv7-A · 254cdf8e
    Will Deacon authored
    Modern ARMv7-A cores can optionally implement these new hardware
    features:
    
    - VFPv4:
        The latest version of the ARMv7 vector floating-point extensions,
        including hardware support for fused multiple accumulate. D16 or D32
        variants may be implemented.
    
    - Integer divide:
        The SDIV and UDIV instructions provide signed and unsigned integer
        division in hardware. When implemented, these instructions may be
        available in either both Thumb and ARM, or Thumb only.
    
    This patch adds new HWCAP defines to describe these new features. The
    integer divide capabilities are split into two bits for ARM and Thumb
    respectively. Whilst HWCAP_IDIVA should never be set if HWCAP_IDIVT is
    clear, separating the bits makes it easier to interpret from userspace.
    Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
    254cdf8e
hwcap.h 979 Bytes