Commit a5a49249 authored by Herbert Xu's avatar Herbert Xu

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: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 4ac33776
...@@ -50,15 +50,37 @@ static inline void *kpp_request_ctx(struct kpp_request *req) ...@@ -50,15 +50,37 @@ static inline void *kpp_request_ctx(struct kpp_request *req)
return req->__ctx; 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, static inline void kpp_set_reqsize(struct crypto_kpp *kpp,
unsigned int reqsize) unsigned int reqsize)
{ {
kpp->reqsize = 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) 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) static inline void kpp_request_complete(struct kpp_request *req, int err)
......
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