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| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2019-06-24 20:38:30 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-07-03 17:13:12 +0300 |
| commit | e217413964a453fc2eeb437c32deb00581cf899d (patch) | |
| tree | fbb70df97290e79cda11c63bbec4506e0ae1f00e /arch/arm64/crypto/aes-modes.S | |
| parent | d45b1714e25e39b94df3da10ba8e95e63865b278 (diff) | |
| download | linux-e217413964a453fc2eeb437c32deb00581cf899d.tar.xz | |
crypto: arm64/aes-ce - add 5 way interleave routines
In preparation of tweaking the accelerated AES chaining mode routines
to be able to use a 5-way stride, implement the core routines to
support processing 5 blocks of input at a time. While at it, drop
the 2 way versions, which have been unused for a while now.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/arm64/crypto/aes-modes.S')
| -rw-r--r-- | arch/arm64/crypto/aes-modes.S | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm64/crypto/aes-modes.S b/arch/arm64/crypto/aes-modes.S index 4c7ce231963c..add6267f9e3a 100644 --- a/arch/arm64/crypto/aes-modes.S +++ b/arch/arm64/crypto/aes-modes.S @@ -13,6 +13,10 @@ .text .align 4 +#ifndef MAX_STRIDE +#define MAX_STRIDE 4 +#endif + aes_encrypt_block4x: encrypt_block4x v0, v1, v2, v3, w3, x2, x8, w7 ret @@ -23,6 +27,18 @@ aes_decrypt_block4x: ret ENDPROC(aes_decrypt_block4x) +#if MAX_STRIDE == 5 +aes_encrypt_block5x: + encrypt_block5x v0, v1, v2, v3, v4, w3, x2, x8, w7 + ret +ENDPROC(aes_encrypt_block5x) + +aes_decrypt_block5x: + decrypt_block5x v0, v1, v2, v3, v4, w3, x2, x8, w7 + ret +ENDPROC(aes_decrypt_block5x) +#endif + /* * aes_ecb_encrypt(u8 out[], u8 const in[], u8 const rk[], int rounds, * int blocks) |