Commit Graph

14 Commits

Author SHA1 Message Date
Ryder Lee
b7a2be388b crypto: mediatek - add MTK_* prefix and correct annotations.
Dummy patch to add MTK_* prefix to ring enum and fix incorrect annotations.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-03-16 17:58:52 +08:00
Ryder Lee
132c57caef crypto: mediatek - rework interrupt handler
This patch removes redundant task that used to handle interrupt
from ring manager, so that the same task/handler can be shared.
It also uses aes->id and sha-id to distinguish interrupt sources.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-03-16 17:58:51 +08:00
Ryder Lee
d03f7b0d58 crypto: mediatek - add support to GCM mode
This patch adds support to the GCM mode.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-01-23 22:50:33 +08:00
Ryder Lee
e04a31d7f5 crypto: mediatek - add support to CTR mode
This patch adds support to the CTR mode.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-01-23 22:50:32 +08:00
Ryder Lee
059b14947a crypto: mediatek - fix typo and indentation
Dummy patch to fix typo and indentation.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-01-23 22:50:32 +08:00
Ryder Lee
0abc271494 crypto: mediatek - regroup functions by usage
This patch only regroup functions by usage.
This will help to integrate the GCM support patch later by
adjusting some shared code section, such as common code which
will be reused by GCM, AES mode setting, and DMA transfer.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-01-23 22:50:31 +08:00
Ryder Lee
87421984b4 crypto: mediatek - rework crypto request completion
This patch introduces a new callback 'resume' in the struct mtk_aes_rec.
This callback is run to resume/complete the processing of the crypto
request when woken up by AES interrupts when DMA completion.

This callback will help implementing the GCM mode support in further
patches.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-01-23 22:50:30 +08:00
Ryder Lee
382ae57d5e crypto: mediatek - make crypto request queue management more generic
This patch changes mtk_aes_handle_queue() to make it more generic.
The function argument is now a pointer to struct crypto_async_request,
which is the common base of struct ablkcipher_request and
struct aead_request.

Also this patch introduces struct mtk_aes_base_ctx which will be the
common base of all the transformation contexts.

Hence the very same queue will be used to manage both block cipher and
AEAD requests (such as gcm and authenc implemented in further patches).

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-01-23 22:50:30 +08:00
Ryder Lee
4432861fb9 crypto: mediatek - fix incorrect data transfer result
This patch fixes mtk_aes_xmit() data transfer bug.

The original function uses the same loop and ring->pos
to handle both command and result descriptors. But this
produces incomplete results when src.sg_len != dst.sg_len.

To solve the problem, we splits the descriptors into different
loops and uses cmd_pos and res_pos to record them respectively.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-01-23 22:50:29 +08:00
Ryder Lee
a873996238 crypto: mediatek - move HW control data to transformation context
This patch moves hardware control block members from
mtk_*_rec to transformation context and refines related
definition. This makes operational context to manage its
own control information easily for each DMA transfer.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-01-23 22:50:29 +08:00
Wei Yongjun
de0f96d772 crypto: mediatek - make symbol of_crypto_id static
Fixes the following sparse warning:

drivers/crypto/mediatek/mtk-platform.c:585:27: warning:
 symbol 'of_crypto_id' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-01-13 18:47:16 +08:00
Arnd Bergmann
41e05324fd crypto: mediatek - fix format string for 64-bit builds
After I enabled COMPILE_TEST for non-ARM targets, I ran into these
warnings:

crypto/mediatek/mtk-aes.c: In function 'mtk_aes_info_map':
crypto/mediatek/mtk-aes.c:224:28: error: format '%d' expects argument of type 'int', but argument 3 has type 'long unsigned int' [-Werror=format=]
   dev_err(cryp->dev, "dma %d bytes error\n", sizeof(*info));
crypto/mediatek/mtk-sha.c:344:28: error: format '%d' expects argument of type 'int', but argument 3 has type 'long unsigned int' [-Werror=format=]
crypto/mediatek/mtk-sha.c:550:21: error: format '%u' expects argument of type 'unsigned int', but argument 4 has type 'size_t {aka long unsigned int}' [-Werror=format=]

The correct format for size_t is %zu, so use that in all three
cases.

Fixes: 785e5c616c ("crypto: mediatek - Add crypto driver support for some MediaTek chips")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-01-13 00:26:47 +08:00
Colin Ian King
f283148a07 crypto: mediatek - don't return garbage err on successful return
In the case where keylen <= bs mtk_sha_setkey returns an uninitialized
return value in err.  Fix this by returning 0 instead of err.

Issue detected by static analysis with cppcheck.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-01-13 00:24:42 +08:00
Ryder Lee
785e5c616c crypto: mediatek - Add crypto driver support for some MediaTek chips
This adds support for the MediaTek hardware accelerator on
mt7623/mt2701/mt8521p SoC.

This driver currently implement:
- SHA1 and SHA2 family(HMAC) hash algorithms.
- AES block cipher in CBC/ECB mode with 128/196/256 bits keys.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-12-27 17:51:30 +08:00