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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2022-11-25 12:36:43 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2022-12-02 18:12:40 +0800 |
| commit | a5a49249effb6f03086214b25719d415cc867b3d (patch) | |
| tree | 8d3f72de44a7dadd0424bafe470e1733d4f67739 | |
| parent | 4ac3377645e98d319cb5404e72d40a4aa69d252c (diff) | |
| download | linux-a5a49249effb6f03086214b25719d415cc867b3d.tar.gz linux-a5a49249effb6f03086214b25719d415cc867b3d.tar.bz2 linux-a5a49249effb6f03086214b25719d415cc867b3d.zip | |
crypto: kpp - Add ctx helpers with DMA alignment
This patch adds helpers to access the kpp context structure and
request context structure with an added alignment for DMA access.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | include/crypto/internal/kpp.h | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/include/crypto/internal/kpp.h b/include/crypto/internal/kpp.h index 167662407e36..3c9726e89f53 100644 --- a/include/crypto/internal/kpp.h +++ b/include/crypto/internal/kpp.h @@ -50,15 +50,37 @@ static inline void *kpp_request_ctx(struct kpp_request *req) return req->__ctx; } +static inline void *kpp_request_ctx_dma(struct kpp_request *req) +{ + unsigned int align = crypto_dma_align(); + + if (align <= crypto_tfm_ctx_alignment()) + align = 1; + + return PTR_ALIGN(kpp_request_ctx(req), align); +} + static inline void kpp_set_reqsize(struct crypto_kpp *kpp, unsigned int reqsize) { kpp->reqsize = reqsize; } +static inline void kpp_set_reqsize_dma(struct crypto_kpp *kpp, + unsigned int reqsize) +{ + reqsize += crypto_dma_align() & ~(crypto_tfm_ctx_alignment() - 1); + kpp->reqsize = reqsize; +} + static inline void *kpp_tfm_ctx(struct crypto_kpp *tfm) { - return tfm->base.__crt_ctx; + return crypto_tfm_ctx(&tfm->base); +} + +static inline void *kpp_tfm_ctx_dma(struct crypto_kpp *tfm) +{ + return crypto_tfm_ctx_dma(&tfm->base); } static inline void kpp_request_complete(struct kpp_request *req, int err) |