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-rw-r--r--crypto/aegis128-neon.c79
1 files changed, 79 insertions, 0 deletions
diff --git a/crypto/aegis128-neon.c b/crypto/aegis128-neon.c
new file mode 100644
index 000000000..a7856915e
--- /dev/null
+++ b/crypto/aegis128-neon.c
@@ -0,0 +1,79 @@
+// 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_init_neon(void *state, const void *key, const void *iv);
+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);
+int crypto_aegis128_final_neon(void *state, void *tag_xor,
+ unsigned int assoclen,
+ unsigned int cryptlen,
+ unsigned int authsize);
+
+int aegis128_have_aes_insn __ro_after_init;
+
+bool crypto_aegis128_have_simd(void)
+{
+ if (cpu_have_feature(cpu_feature(AES))) {
+ aegis128_have_aes_insn = 1;
+ return true;
+ }
+ return IS_ENABLED(CONFIG_ARM64);
+}
+
+void crypto_aegis128_init_simd(struct aegis_state *state,
+ const union aegis_block *key,
+ const u8 *iv)
+{
+ kernel_neon_begin();
+ crypto_aegis128_init_neon(state, key, iv);
+ kernel_neon_end();
+}
+
+void crypto_aegis128_update_simd(struct aegis_state *state, const void *msg)
+{
+ kernel_neon_begin();
+ crypto_aegis128_update_neon(state, msg);
+ kernel_neon_end();
+}
+
+void crypto_aegis128_encrypt_chunk_simd(struct aegis_state *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(struct aegis_state *state, u8 *dst,
+ const u8 *src, unsigned int size)
+{
+ kernel_neon_begin();
+ crypto_aegis128_decrypt_chunk_neon(state, dst, src, size);
+ kernel_neon_end();
+}
+
+int crypto_aegis128_final_simd(struct aegis_state *state,
+ union aegis_block *tag_xor,
+ unsigned int assoclen,
+ unsigned int cryptlen,
+ unsigned int authsize)
+{
+ int ret;
+
+ kernel_neon_begin();
+ ret = crypto_aegis128_final_neon(state, tag_xor, assoclen, cryptlen,
+ authsize);
+ kernel_neon_end();
+
+ return ret;
+}