drivers: caam: fix cache operation on SGT table

The cache operation of the SGT table in caam_sgt_derive() was wrong and
it did not take into account the CAAM "burst" defined by the value
CFG_CAAM_SG

drivers: caam: fix cache operation on SGT table

The cache operation of the SGT table in caam_sgt_derive() was wrong and
it did not take into account the CAAM "burst" defined by the value
CFG_CAAM_SGT_ALIGN.
The cache operation of the SGT table in caam_sgt_cache_op() is done
correctly however.

This patch adds caam_sgt_entries_cache_clean() to do this operation and
avoid implementation errors.

Signed-off-by: Franck LENORMAND <franck.lenormand@nxp.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>

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drivers: caam: remove unused SGT functions

Remove not longer used SGT functions.

Signed-off-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>

drivers: caam: implement CAAM DMA Object

Implementation of a CAAM DMA object to:
- create a DMA object (SGT/buffer) based on input/output buffers
- reallocate a new buffer accessible from the CA

drivers: caam: implement CAAM DMA Object

Implementation of a CAAM DMA object to:
- create a DMA object (SGT/buffer) based on input/output buffers
- reallocate a new buffer accessible from the CAAM address space
- ensure buffer is cache aligned (for the output)

Implementation of CAAM DMA object functions to:
- cache maintenance
- free CAAM DMA object

Signed-off-by: Cedric Neveux <cedric.neveux@nxp.com>
Signed-off-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>

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drivers: CAAM driver User Buffer SGT create

CAAM Driver can operate directly with the User Buffer and in this
case, the buffer can be on non-contiguous physical page.

CAAM is using a DMA to load/st

drivers: CAAM driver User Buffer SGT create

CAAM Driver can operate directly with the User Buffer and in this
case, the buffer can be on non-contiguous physical page.

CAAM is using a DMA to load/store data from memory. The DMA is working
with physical address. In case of the User Buffer, if the buffer is
crossing multiple Small Page, a CAAM Scatter Gather Table needs to
be created to rebuild the physical memory chunks used by the User virtual
buffer.

Add a function to check if a buffer is a User buffer crossing mutliple
small page.
Add a function to create a SGT Table of the User buffer.

Signed-off-by: Cedric Neveux <cedric.neveux@nxp.com>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>

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driver: implement CAAM driver

Add the NXP CAAM drivers:
- Random generator (instantiation and random generation)
- Hash

Signed-off-by: Cedric Neveux <cedric.neveux@nxp.com>
Acked-by: Etienne Ca

driver: implement CAAM driver

Add the NXP CAAM drivers:
- Random generator (instantiation and random generation)
- Hash

Signed-off-by: Cedric Neveux <cedric.neveux@nxp.com>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>

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