On Mon, Oct 09, 2017 at 01:12:30PM +0200, Kamil Konieczny wrote: > Add support for MD5, SHA1, SHA256 hash algorithms for Exynos HW. > It uses the crypto framework asynchronous hash api. > It is based on omap-sham.c driver. > S5P has some HW differencies and is not implemented. > > Modifications in s5p-sss: > > - Add hash supporting structures and functions. > > - Modify irq handler to handle both aes and hash signals. > > - Resize resource end in probe if EXYNOS_HASH is enabled in > Kconfig. > > - Add new copyright line and new author. > > - Tested on Odroid-U3 with Exynos 4412 CPU, kernel 4.13-rc6 > with crypto run-time self test testmgr > and with tcrypt module with: modprobe tcrypt sec=1 mode=N > where N=402, 403, 404 (MD5, SHA1, SHA256). > > Modifications in drivers/crypto/Kconfig: > > - Add new CRYPTO_DEV_EXYNOS_HASH, depend on !EXYNOS_RNG > and CRYPTO_DEV_S5P > > - Select sw algorithms MD5, SHA1 and SHA256 in EXYNOS_HASH > as they are nedded for fallback. > > Signed-off-by: Kamil Konieczny <k.konieczny@xxxxxxxxxxxxxxxxxxx> > --- > version 5: > - fix suggested by Krzysztof Kozlowski: change defines HASH_OP into enum, fix > comments > > version 4: > - fixes suggested by Krzysztof Kozlowski: reformat comments, convert context > flags into two bool vars, drop SSS_ALIGNED, change name of SSS_DMA_ALIGN and > SSS_DMA_ALIGN_MASK, split assignments into separate lines, use IS_ENABLED in > place of ifdef, remove sss_hash_algs_info and simplify register and deregister > HASH algs > > version 3: > - many fixes suggested by Krzysztof Kozlowski: comments, uppercases in const, > remove unused defines, remove unused variable bs, constify aes_variant, > remove global var use_hash, remove WARN_ON, improve hash_import(), > change goto label into 'out' in s5p_hash_handle_queue(), reorder variable > declarations, add spinlock to protect clearing HASH_FLAGS_BUSY > - simplify code: replace one-line functions s5p_hash_update_req(), > s5p_hash_final_req() with call to s5p_hash_xmit_dma(), and delete them > - replace call to s5p_hash_hw_init() into s5p_ahash_dma_init() and delete it > - fix clearing shash flag CRYPTO_TFM_REQ_MAY_SLEEP > - fix s5p_hash_set_flow() > > version 2: > - change patch format so number of lines drops > - change in Kconfig as suggested by Krzysztof Kozlowski, add > EXYNOS_HASH subsection > - change #ifndef EXYNOS_RNG into #ifdef CRYPTO_DEV_EXYNOS_HASH > - remove style fixups in aes, as they should go in separate patch > - remove FLOW_LOG, FLOW_DUMP macros and its uses > - remove #if 0 ... endif > - remove unused function hash_wait and its defines > - fix compiler warning in dev_dbg > - remove some comments > - other minor fixes in comments > > drivers/crypto/Kconfig | 14 + > drivers/crypto/s5p-sss.c | 1441 +++++++++++++++++++++++++++++++++++++++++++++- > 2 files changed, 1445 insertions(+), 10 deletions(-) > Reviewed-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx> Best regards, Krzysztof
