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RE: [PATCH v2 6/8] crypto: caam - handle core endianness != caam endianness

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  RE: [PATCH v2 6/8] crypto: caam - handle core endianness != caam  endianness Tudor-Dan Ambarus <tudor-dan.ambarus@nxp.com> - 2016-05-16 19:30 +0200

#1401653 — RE: [PATCH v2 6/8] crypto: caam - handle core endianness != caam endianness

> 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).
> 
> Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
> Signed-off-by: Alex Porosanu <alexandru.porosanu@nxp.com>
> ---
>  drivers/crypto/caam/Kconfig       |   4 -
>  drivers/crypto/caam/caamhash.c    |   5 +-
>  drivers/crypto/caam/ctrl.c        | 125 +++++++++++++++++++------------
>  drivers/crypto/caam/desc.h        |   7 +-
>  drivers/crypto/caam/desc_constr.h |  44 +++++++----
>  drivers/crypto/caam/jr.c          |  22 +++---
>  drivers/crypto/caam/pdb.h         | 137 ++++++++++++++++++++++++++--------
>  drivers/crypto/caam/regs.h        | 151 +++++++++++++++++++++++++---------
> ----
>  drivers/crypto/caam/sg_sw_sec4.h  |  11 +--
>  9 files changed, 340 insertions(+), 166 deletions(-)

Reviewed-by: Tudor Ambarus <tudor-dan.ambarus@nxp.com>

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