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Diffstat (limited to 'include/crypto/algapi.h')
-rw-r--r--include/crypto/algapi.h43
1 files changed, 40 insertions, 3 deletions
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index f50c5d1725da..61b327206b55 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -8,6 +8,7 @@
#define _CRYPTO_ALGAPI_H
#include <linux/align.h>
+#include <linux/cache.h>
#include <linux/crypto.h>
#include <linux/kconfig.h>
#include <linux/list.h>
@@ -21,10 +22,18 @@
* algs and architectures. Ciphers have a lower maximum size.
*/
#define MAX_ALGAPI_BLOCKSIZE 160
-#define MAX_ALGAPI_ALIGNMASK 63
+#define MAX_ALGAPI_ALIGNMASK 127
#define MAX_CIPHER_BLOCKSIZE 16
#define MAX_CIPHER_ALIGNMASK 15
+#ifdef ARCH_DMA_MINALIGN
+#define CRYPTO_DMA_ALIGN ARCH_DMA_MINALIGN
+#else
+#define CRYPTO_DMA_ALIGN CRYPTO_MINALIGN
+#endif
+
+#define CRYPTO_DMA_PADDING ((CRYPTO_DMA_ALIGN - 1) & ~(CRYPTO_MINALIGN - 1))
+
struct crypto_aead;
struct crypto_instance;
struct module;
@@ -189,10 +198,38 @@ static inline void crypto_xor_cpy(u8 *dst, const u8 *src1, const u8 *src2,
}
}
+static inline void *crypto_tfm_ctx(struct crypto_tfm *tfm)
+{
+ return tfm->__crt_ctx;
+}
+
+static inline void *crypto_tfm_ctx_align(struct crypto_tfm *tfm,
+ unsigned int align)
+{
+ if (align <= crypto_tfm_ctx_alignment())
+ align = 1;
+
+ return PTR_ALIGN(crypto_tfm_ctx(tfm), align);
+}
+
static inline void *crypto_tfm_ctx_aligned(struct crypto_tfm *tfm)
{
- return PTR_ALIGN(crypto_tfm_ctx(tfm),
- crypto_tfm_alg_alignmask(tfm) + 1);
+ return crypto_tfm_ctx_align(tfm, crypto_tfm_alg_alignmask(tfm) + 1);
+}
+
+static inline unsigned int crypto_dma_align(void)
+{
+ return CRYPTO_DMA_ALIGN;
+}
+
+static inline unsigned int crypto_dma_padding(void)
+{
+ return (crypto_dma_align() - 1) & ~(crypto_tfm_ctx_alignment() - 1);
+}
+
+static inline void *crypto_tfm_ctx_dma(struct crypto_tfm *tfm)
+{
+ return crypto_tfm_ctx_align(tfm, crypto_dma_align());
}
static inline struct crypto_instance *crypto_tfm_alg_instance(