linux-toradex.git/drivers/crypto/caam, branch v4.9.16

crypto: caam - fix AEAD givenc descriptors

2017-01-06T09:40:13+00:00

commit d128af17876d79b87edf048303f98b35f6a53dbc upstream.

The AEAD givenc descriptor relies on moving the IV through the
output FIFO and then back to the CTX2 for authentication. The
SEQ FIFO STORE could be scheduled before the data can be
read from OFIFO, especially since the SEQ FIFO LOAD needs
to wait for the SEQ FIFO LOAD SKIP to finish first. The
SKIP takes more time when the input is SG than when it's
a contiguous buffer. If the SEQ FIFO LOAD is not scheduled
before the STORE, the DECO will hang waiting for data
to be available in the OFIFO so it can be transferred to C2.
In order to overcome this, first force transfer of IV to C2
by starting the "cryptlen" transfer first and then starting to
store data from OFIFO to the output buffer.

Fixes: 1acebad3d8db8 ("crypto: caam - faster aead implementation")
Signed-off-by: Alex Porosanu 
Signed-off-by: Horia Geantă 
Signed-off-by: Herbert Xu 
Signed-off-by: Greg Kroah-Hartman

crypto: caam - fix pointer size for AArch64 boot loader, AArch32 kernel

2016-12-07T11:55:17+00:00

Start with a clean slate before dealing with bit 16 (pointer size)
of Master Configuration Register.
This fixes the case of AArch64 boot loader + AArch32 kernel, when
the boot loader might set MCFGR[PS] and kernel would fail to clear it.

Cc: 
Reported-by: Alison Wang 
Signed-off-by: Horia Geantă 
Reviewed-By: Alison Wang 
Signed-off-by: Herbert Xu

crypto: caam - fix type mismatch warning

2016-11-17T14:14:21+00:00

Building the caam driver on arm64 produces a harmless warning:

drivers/crypto/caam/caamalg.c:140:139: warning: comparison of distinct pointer types lacks a cast

We can use min_t to tell the compiler which type we want it to use
here.

Fixes: 5ecf8ef9103c ("crypto: caam - fix sg dump")
Signed-off-by: Arnd Bergmann 
Reviewed-by: Horia Geantă 
Signed-off-by: Herbert Xu

crypto: caam - do not register AES-XTS mode on LP units

2016-11-13T09:39:28+00:00

When using AES-XTS on a Wandboard, we receive a Mode error:
caam_jr 2102000.jr1: 20001311: CCB: desc idx 19: AES: Mode error.

According to the Security Reference Manual, the Low Power AES units
of the i.MX6 do not support the XTS mode. Therefore we must not
register XTS implementations in the Crypto API.

Signed-off-by: Sven Ebenfeld 
Reviewed-by: Horia Geantă 

Cc:  # 4.4+
Fixes: c6415a6016bf "crypto: caam - add support for acipher xts(aes)"
Signed-off-by: Herbert Xu

Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2016-10-10T03:19:47+00:00

Merge the crypto tree to pull in vmx ghash fix.

crypto: caam - treat SGT address pointer as u64

2016-10-02T14:33:45+00:00

Even for i.MX, CAAM is able to use address pointers greater than
32 bits, the address pointer field being interpreted as a double word.
Enforce u64 address pointer in the sec4_sg_entry struct.

This patch fixes the SGT address pointer endianness issue for
32bit platforms where core endianness != caam endianness.

Signed-off-by: Tudor Ambarus 
Signed-off-by: Herbert Xu

crypto: caam - Unmap region obtained by of_iomap

2016-10-02T14:33:43+00:00

Free memory mapping, if probe is not successful.

Signed-off-by: Arvind Yadav 
Signed-off-by: Herbert Xu

crypto: caam - fix sg dump

2016-09-22T10:32:54+00:00

Ensure scatterlists have a virtual memory mapping before dumping.

Signed-off-by: Catalin Vasile 
Signed-off-by: Herbert Xu

crypto: caam - Move common error handling code in two functions

2016-09-22T10:27:46+00:00

Move statements for error handling which were identical
in two if branches to the end of these functions.

Signed-off-by: Markus Elfring 
Signed-off-by: Herbert Xu

crypto: caam - Delete an unnecessary initialisation in seven functions

2016-09-22T10:27:45+00:00

The local variable "ret" will be set to an appropriate value a bit later.
Thus omit the explicit initialisation at the beginning.

Signed-off-by: Markus Elfring 
Signed-off-by: Herbert Xu