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path: root/drivers/crypto/mediatek
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2017-11-03crypto: mediatek - move to generic async completionGilad Ben-Yossef1-26/+5
The mediatek driver starts several async crypto ops and waits for their completions. Move it over to generic code doing the same. Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com> Acked-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-22crypto: mediatek - Use GCM IV size constantCorentin LABBE1-1/+2
This patch replace GCM IV size value by their constant name. Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-22crypto: mediatek - Add empty messages check in GCM modeRyder Lee1-0/+5
Currently, empty messages are not supported in GCM mode, hence add a check to prevent producing incorrect results. Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-07-18crypto: mediatek - fix error return code in mtk_crypto_probe()Gustavo A. R. Silva1-1/+1
Propagate the return value of platform_get_irq on failure. Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-06-19crypto: mediatek - drop .owner field in mtk_crypto_driverGeliang Tang1-1/+0
Drop .owner field in mtk_crypto_driver, since platform_driver_register() will set it automatically. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-06-10crypto: mediatek - remove redundant clock settingRyder Lee2-11/+1
This patch removes redundant clock setting for 'clk_ethif', which is the parent of 'clk_cryp'. Hence, we just need to handle its child. Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-05-23crypto: mediatek - Use IPAD/OPAD constantCorentin LABBE1-2/+3
This patch simply replace all occurrence of HMAC IPAD/OPAD value by their define. Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-03-16crypto: mediatek - make hardware operation flow more efficientRyder Lee2-188/+165
This patch refines data structures, which are used to control engine's data path, to make it more efficient. Hence current change are: - gathers the broken pieces of structures 'mtk_aes_ct''mtk_aes_tfm' into struct mtk_aes_info hence avoiding additional DMA-mapping. - adds 'keymode' in struct mtk_aes_base_ctx. When .setkey() callback is called, we store keybit setting in keymode. Doing so, there is no need to check keylen second time in mtk_aes_info_init() / mtk_aes_gcm_info_init(). Besides, this patch also removes unused macro definitions and adds helper inline function to write security information(key, IV,...) to info->state. Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-03-16crypto: mediatek - add mtk_aes_gcm_tag_verify()Ryder Lee2-2/+24
This patch adds mtk_aes_gcm_tag_verify() which is used to compare authenticated tag. Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-03-16crypto: mediatek - fix error handling in mtk_aes_complete()Ryder Lee1-16/+23
This patch fixes how errors should be handled by mtk_aes_complete(). Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-03-16crypto: mediatek - add queue_task taskletRyder Lee3-12/+39
This patch adds 'queue_task' to dequeue crypto requset. This will help to avoid directly calling mtk_aes_handle_queue() / mtk_sha_handle_queue() from done tasklet or error handler. In order to avoid confusion, the new code properly renames DMA completion "task" to "done_task". Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-03-16crypto: mediatek - simplify descriptor ring managementRyder Lee4-26/+34
This patch replaces cmd_pos/res_pos with pointer cmd_next/res_next. In old code, we must to add one to shift ring to the next segment, and then use this value to caculate current offset from ring base for each DMA operation. Now these pointers helps us to simplify flow, so we just need to move pointers and check the boundaries of ring. Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-03-16crypto: mediatek - make mtk_sha_xmit() more genericRyder Lee2-86/+34
This is a transitional patch. It merges mtk_sha_xmit() and mtk_sha_xmit2() to make transmit function more generic. In addition, res->buf and cryp->tmp_dma in mtk_sha_xmit() are useless, since crypto engine writes the result digests into ctx->tfm.digest instead of res->buf. It's better to remove it. Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-03-16crypto: mediatek - add MTK_* prefix and correct annotations.Ryder Lee4-32/+32
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>
2017-03-16crypto: mediatek - rework interrupt handlerRyder Lee3-101/+49
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>
2017-01-23crypto: mediatek - add support to GCM modeRyder Lee2-4/+367
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>
2017-01-23crypto: mediatek - add support to CTR modeRyder Lee1-5/+146
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>
2017-01-23crypto: mediatek - fix typo and indentationRyder Lee3-69/+63
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>
2017-01-23crypto: mediatek - regroup functions by usageRyder Lee1-131/+141
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>
2017-01-23crypto: mediatek - rework crypto request completionRyder Lee2-12/+16
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>
2017-01-23crypto: mediatek - make crypto request queue management more genericRyder Lee2-36/+53
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>
2017-01-23crypto: mediatek - fix incorrect data transfer resultRyder Lee3-32/+47
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>
2017-01-23crypto: mediatek - move HW control data to transformation contextRyder Lee3-145/+126
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>
2017-01-13crypto: mediatek - make symbol of_crypto_id staticWei Yongjun1-1/+1
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>
2017-01-13crypto: mediatek - fix format string for 64-bit buildsArnd Bergmann2-3/+3
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: 785e5c616c84 ("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>
2017-01-13crypto: mediatek - don't return garbage err on successful returnColin Ian King1-1/+1
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>
2016-12-27crypto: mediatek - Add crypto driver support for some MediaTek chipsRyder Lee6-0/+3240
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>
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