crypto: aegis128 - provide a SIMD implementation based on NEON intrinsics

[linux-2.6-microblaze.git] / crypto / aegis128-neon.c

diff --git a/crypto/aegis128-neon.c b/crypto/aegis128-neon.c
new file mode 100644 (file)
index 0000000..c1c0a16
--- /dev/null
+++ b/crypto/aegis128-neon.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2019 Linaro Ltd <ard.biesheuvel@linaro.org>
+ */
+
+#include <asm/cpufeature.h>
+#include <asm/neon.h>
+
+#include "aegis.h"
+
+void crypto_aegis128_update_neon(void *state, const void *msg);
+void crypto_aegis128_encrypt_chunk_neon(void *state, void *dst, const void *src,
+                                       unsigned int size);
+void crypto_aegis128_decrypt_chunk_neon(void *state, void *dst, const void *src,
+                                       unsigned int size);
+
+bool crypto_aegis128_have_simd(void)
+{
+       return cpu_have_feature(cpu_feature(AES));
+}
+
+void crypto_aegis128_update_simd(union aegis_block *state, const void *msg)
+{
+       kernel_neon_begin();
+       crypto_aegis128_update_neon(state, msg);
+       kernel_neon_end();
+}
+
+void crypto_aegis128_encrypt_chunk_simd(union aegis_block *state, u8 *dst,
+                                       const u8 *src, unsigned int size)
+{
+       kernel_neon_begin();
+       crypto_aegis128_encrypt_chunk_neon(state, dst, src, size);
+       kernel_neon_end();
+}
+
+void crypto_aegis128_decrypt_chunk_simd(union aegis_block *state, u8 *dst,
+                                       const u8 *src, unsigned int size)
+{
+       kernel_neon_begin();
+       crypto_aegis128_decrypt_chunk_neon(state, dst, src, size);
+       kernel_neon_end();
+}