Commit graph

5 commits

Author SHA1 Message Date
Corentin LABBE
a80e1fbf11 crypto: sun4i-ss - Replace spinlock_bh by spin_lock_irq{save|restore}
commit bdb6cf9f6fe6d9af905ea34b7c4bb78ea601329e upstream.

The current sun4i-ss driver could generate data corruption when ciphering/deciphering.
It occurs randomly on end of handled data.
No root cause have been found and the only way to remove it is to replace
all spin_lock_bh by their irq counterparts.

Fixes: 6298e94821 ("crypto: sunxi-ss - Add Allwinner Security System crypto accelerator")
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-01 12:15:49 -07:00
LABBE Corentin
6abc65624a crypto: sun4i-ss - add missing statesize
commit 4f9ea86604e3ba64edd2817795798168fbb3c1a6 upstream.

sun4i-ss implementaton of md5/sha1 is via ahash algorithms.
Commit 8996eafdcb ("crypto: ahash - ensure statesize is non-zero")
made impossible to load them without giving statesize. This patch
specifiy statesize for sha1 and md5.

Fixes: 6298e94821 ("crypto: sunxi-ss - Add Allwinner Security System crypto accelerator")
Tested-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-17 12:30:55 -08:00
LABBE Corentin
9da75de030 crypto: sunxi-ss - Fix a possible driver hang with ciphers
The sun4i_ss_opti_poll function cipher data until the output miter have
a length of 0.
If the crypto API client, give more SGs than necessary this could result
in an infinite loop.
Fix it by checking for remaining bytes, just like sun4i_ss_cipher_poll().

Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-09-10 17:22:55 +08:00
Chen-Yu Tsai
7ab64628bb crypto: sunxi-ss - Add optional reset control support
On sun6i and later platforms, the reset control is split out of the
clock gates. Add support for an optional reset control.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-08-13 15:13:23 +08:00
LABBE Corentin
6298e94821 crypto: sunxi-ss - Add Allwinner Security System crypto accelerator
Add support for the Security System included in Allwinner SoC A20.
The Security System is a hardware cryptographic accelerator that support:
- MD5 and SHA1 hash algorithms
- AES block cipher in CBC/ECB mode with 128/196/256bits keys.
- DES and 3DES block cipher in CBC/ECB mode

Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-07-20 15:54:08 +08:00