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crypto: hash - Add ctx helpers with DMA alignment

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This patch adds helpers to access the ahash context structure and
request context structure with an added alignment for DMA access.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2022-11-25 12:36:35 +08:00
parent f8e4d1d0ac
commit b5f755fbd5
1 changed files with 22 additions and 0 deletions
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22
include/crypto/internal/hash.h
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@ -140,6 +140,11 @@ static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm)
return crypto_tfm_ctx(crypto_ahash_tfm(tfm));
}
static inline void *crypto_ahash_ctx_dma(struct crypto_ahash *tfm)
{
return crypto_tfm_ctx_dma(crypto_ahash_tfm(tfm));
}
static inline struct ahash_alg *__crypto_ahash_alg(struct crypto_alg *alg)
{
return container_of(__crypto_hash_alg_common(alg), struct ahash_alg,
@ -152,6 +157,13 @@ static inline void crypto_ahash_set_reqsize(struct crypto_ahash *tfm,
tfm->reqsize = reqsize;
}
static inline void crypto_ahash_set_reqsize_dma(struct crypto_ahash *ahash,
unsigned int reqsize)
{
reqsize += crypto_dma_align() & ~(crypto_tfm_ctx_alignment() - 1);
ahash->reqsize = reqsize;
}
static inline struct crypto_instance *ahash_crypto_instance(
struct ahash_instance *inst)
{
@ -175,6 +187,16 @@ static inline void *ahash_instance_ctx(struct ahash_instance *inst)
return crypto_instance_ctx(ahash_crypto_instance(inst));
}
static inline void *ahash_request_ctx_dma(struct ahash_request *req)
{
unsigned int align = crypto_dma_align();
if (align <= crypto_tfm_ctx_alignment())
align = 1;
return PTR_ALIGN(ahash_request_ctx(req), align);
}
static inline void ahash_request_complete(struct ahash_request *req, int err)
{
req->base.complete(&req->base, err);