• Horia Geantă's avatar
    crypto: caam - handle core endianness != caam endianness · 261ea058
    Horia Geantă authored
    There are SoCs like LS1043A where CAAM endianness (BE) does not match
    the default endianness of the core (LE).
    Moreover, there are requirements for the driver to handle cases like
    CPU_BIG_ENDIAN=y on ARM-based SoCs.
    This requires for a complete rewrite of the I/O accessors.
    
    PPC-specific accessors - {in,out}_{le,be}XX - are replaced with
    generic ones - io{read,write}[be]XX.
    
    Endianness is detected dynamically (at runtime) to allow for
    multiplatform kernels, for e.g. running the same kernel image
    on LS1043A (BE CAAM) and LS2080A (LE CAAM) armv8-based SoCs.
    
    While here: debugfs entries need to take into consideration the
    endianness of the core when displaying data. Add the necessary
    glue code so the entries remain the same, but they are properly
    read, regardless of the core and/or SEC endianness.
    
    Note: pdb.h fixes only what is currently being used (IPsec).
    Reviewed-by: default avatarTudor Ambarus <tudor-dan.ambarus@nxp.com>
    Signed-off-by: default avatarHoria Geantă <horia.geanta@nxp.com>
    Signed-off-by: default avatarAlex Porosanu <alexandru.porosanu@nxp.com>
    Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
    261ea058
ctrl.c 24.3 KB