asm/unaligned.h is always an include of asm-generic/unaligned.h;
might as well move that thing to linux/unaligned.h and include
that - there's nothing arch-specific in that header.

auto-generated by the following:

for i in `git grep -l -w asm/unaligned.h`; do
	sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i
done
for i in `git grep -l -w asm-generic/unaligned.h`; do
	sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i
done
git mv include/asm-generic/unaligned.h include/linux/unaligned.h
git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h
sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild
sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h

Because hardware will read in multiples of 4 SG entries, ensure
the allocated length is always padded.  This was already done
by some callers of ahash_edesc_alloc, but ahash_digest was conspicuously
missing.

In any case, doing it in the allocation function ensures that the
memory is always there.

Reported-by: Guangwu Zhang <guazhang@redhat.com>
Fixes: a5e5c13398f3 ("crypto: caam - fix S/G table passing page boundary")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Instead of directly casting and returning (void *) pointer, use ERR_CAST
to explicitly return an error-valued pointer. This makes the error handling
more explicit and improves code clarity.

Signed-off-by: Chen Yufan <chenyufan@vivo.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Switch cpumask_t to cpumask_var_t as the former may be too big
for the stack:

  CC [M]  drivers/crypto/caam/qi.o
  CC [M]  drivers/crypto/caam/caamalg_qi2.o
../drivers/crypto/caam/qi.c: In function ‘caam_qi_init’:
../drivers/crypto/caam/qi.c:808:1: warning: the frame size of 1056 bytes is larger than 1024 bytes [-Wframe-larger-than=]
  808 | }
      | ^
  CHECK   ../drivers/crypto/caam/qi.c
../drivers/crypto/caam/caamalg_qi2.c: In function ‘dpaa2_dpseci_setup’:
../drivers/crypto/caam/caamalg_qi2.c:5135:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 5135 | }
      | ^

Also fix the error path handling in qi.c.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Embedding net_device into structures prohibits the usage of flexible
arrays in the net_device structure. For more details, see the discussion
at [1].

Un-embed the net_devices from struct dpaa2_caam_priv_per_cpu by
converting them into pointers, and allocating them dynamically. Use the
leverage alloc_netdev_dummy() to allocate the net_device object at
dpaa2_dpseci_setup().

The free of the device occurs at dpaa2_dpseci_disable().

Link: https://lore.kernel.org/all/20240229225910.79e224cf@kernel.org/ [1]
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20240702185557.3699991-5-leitao@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Embedding net_device into structures prohibits the usage of flexible
arrays in the net_device structure. For more details, see the discussion
at [1].

Un-embed the net_devices from struct caam_qi_pcpu_priv by converting them
into pointers, and allocating them dynamically. Use the leverage
alloc_netdev_dummy() to allocate the net_device object at
caam_qi_init().

The free of the device occurs at caam_qi_shutdown().

Link: https://lore.kernel.org/all/20240229225910.79e224cf@kernel.org/ [1]
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20240702185557.3699991-4-leitao@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

As most of the drivers that depend on ARCH_LAYERSCAPE, make
CRYPTO_DEV_FSL_CAAM depend on COMPILE_TEST for compilation and testing.

    # grep -r depends.\*ARCH_LAYERSCAPE.\*COMPILE_TEST | wc -l
    29

Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20240702185557.3699991-3-leitao@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

If caam module is built without OF support, the compiler returns the
following warning:

	drivers/crypto/caam/ctrl.c:83:34: warning: 'imx8m_machine_match' defined but not used [-Wunused-const-variable=]

imx8m_machine_match is only referenced by of_match_node(), which is set
to NULL if CONFIG_OF is not set, as of commit 5762c20593b6b ("dt: Add
empty of_match_node() macro"):

	#define of_match_node(_matches, _node)  NULL

Do not create imx8m_machine_match if CONFIG_OF is not set.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202407011309.cpTuOGdg-lkp@intel.com/
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20240702185557.3699991-2-leitao@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

iMX8ULP have a secure-enclave hardware IP called EdgeLock Enclave(ELE),
that control access to caam controller's register page, i.e., page0.

At all, if the ELE release access to CAAM controller's register page,
it will release to secure-world only.

Clocks are turned on automatically for iMX8ULP. There exists the caam
clock gating bit, but it is not advised to gate the clock at linux, as
optee-os or any other entity might be using it.

Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Reviewed-by: Gaurav Jain <gaurav.jain@nxp.com>
Reviewed-by: Horia Geanta <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

CAAM clock initializat is done based on the basis of soc specific
info stored in struct caam_imx_data:
- caam-page0-access flag
- num_clks

CAAM driver needs to be aware of access rights to CAAM control page
i.e., page0, to do things differently.

Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Reviewed-by: Gaurav Jain <gaurav.jain@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>