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crypto: aegis128-neon - Move to more abstract 'ksimd' guard API

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Move away from calling kernel_neon_begin() and kernel_neon_end()
directly, and instead, use the newly introduced scoped_ksimd() API. This
permits arm64 to modify the kernel mode NEON API without affecting code
that is shared between ARM and arm64.

Reviewed-by: Eric Biggers <ebiggers@kernel.org>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
This commit is contained in:
Ard Biesheuvel
2025-10-01 12:21:53 +02:00
parent c13aebfeee
commit 88a7999e80
1 changed files with 12 additions and 21 deletions
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33
crypto/aegis128-neon.c
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@@ -4,7 +4,7 @@
*/ */
#include <asm/cpufeature.h> #include <asm/cpufeature.h>
#include <asm/neon.h> #include <asm/simd.h>
#include "aegis.h" #include "aegis.h"
#include "aegis-neon.h" #include "aegis-neon.h"
@@ -24,32 +24,28 @@ void crypto_aegis128_init_simd(struct aegis_state *state,
const union aegis_block *key, const union aegis_block *key,
const u8 *iv) const u8 *iv)
{ {
kernel_neon_begin(); scoped_ksimd()
crypto_aegis128_init_neon(state, key, iv); crypto_aegis128_init_neon(state, key, iv);
kernel_neon_end();
} }
void crypto_aegis128_update_simd(struct aegis_state *state, const void *msg) void crypto_aegis128_update_simd(struct aegis_state *state, const void *msg)
{ {
kernel_neon_begin(); scoped_ksimd()
crypto_aegis128_update_neon(state, msg); crypto_aegis128_update_neon(state, msg);
kernel_neon_end();
} }
void crypto_aegis128_encrypt_chunk_simd(struct aegis_state *state, u8 *dst, void crypto_aegis128_encrypt_chunk_simd(struct aegis_state *state, u8 *dst,
const u8 *src, unsigned int size) const u8 *src, unsigned int size)
{ {
kernel_neon_begin(); scoped_ksimd()
crypto_aegis128_encrypt_chunk_neon(state, dst, src, size); crypto_aegis128_encrypt_chunk_neon(state, dst, src, size);
kernel_neon_end();
} }
void crypto_aegis128_decrypt_chunk_simd(struct aegis_state *state, u8 *dst, void crypto_aegis128_decrypt_chunk_simd(struct aegis_state *state, u8 *dst,
const u8 *src, unsigned int size) const u8 *src, unsigned int size)
{ {
kernel_neon_begin(); scoped_ksimd()
crypto_aegis128_decrypt_chunk_neon(state, dst, src, size); crypto_aegis128_decrypt_chunk_neon(state, dst, src, size);
kernel_neon_end();
} }
int crypto_aegis128_final_simd(struct aegis_state *state, int crypto_aegis128_final_simd(struct aegis_state *state,
@@ -58,12 +54,7 @@ int crypto_aegis128_final_simd(struct aegis_state *state,
unsigned int cryptlen, unsigned int cryptlen,
unsigned int authsize) unsigned int authsize)
{ {
int ret; scoped_ksimd()
return crypto_aegis128_final_neon(state, tag_xor, assoclen,
kernel_neon_begin(); cryptlen, authsize);
ret = crypto_aegis128_final_neon(state, tag_xor, assoclen, cryptlen,
authsize);
kernel_neon_end();
return ret;
} }