diff options
Diffstat (limited to 'cipher/poly1305.c')
| -rw-r--r-- | cipher/poly1305.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/cipher/poly1305.c b/cipher/poly1305.c index adcb6792..6cb4d2b7 100644 --- a/cipher/poly1305.c +++ b/cipher/poly1305.c @@ -35,6 +35,9 @@ static const char *selftest (void); +#undef HAVE_ASM_POLY1305_BLOCKS + + #undef USE_MPI_64BIT #undef USE_MPI_32BIT #if BYTES_PER_MPI_LIMB == 8 && defined(HAVE_TYPE_U64) @@ -46,6 +49,35 @@ static const char *selftest (void); #endif +/* USE_S390X_ASM indicates whether to enable zSeries code. */ +#undef USE_S390X_ASM +#if BYTES_PER_MPI_LIMB == 8 +# if defined (__s390x__) && __GNUC__ >= 4 && __ARCH__ >= 9 +# if defined(HAVE_GCC_INLINE_ASM_S390X) +# define USE_S390X_ASM 1 +# endif /* USE_S390X_ASM */ +# endif +#endif + + +#ifdef USE_S390X_ASM + +#define HAVE_ASM_POLY1305_BLOCKS 1 + +extern unsigned int _gcry_poly1305_s390x_blocks1(void *state, + const byte *buf, size_t len, + byte high_pad); + +static unsigned int +poly1305_blocks (poly1305_context_t *ctx, const byte *buf, size_t len, + byte high_pad) +{ + return _gcry_poly1305_s390x_blocks1(&ctx->state, buf, len, high_pad); +} + +#endif /* USE_S390X_ASM */ + + static void poly1305_init (poly1305_context_t *ctx, const byte key[POLY1305_KEYLEN]) { @@ -146,6 +178,8 @@ static void poly1305_init (poly1305_context_t *ctx, ADD_1305_64(H2, H1, H0, (u64)0, x0_hi, x0_lo); \ } while (0) +#ifndef HAVE_ASM_POLY1305_BLOCKS + static unsigned int poly1305_blocks (poly1305_context_t *ctx, const byte *buf, size_t len, byte high_pad) @@ -201,6 +235,8 @@ poly1305_blocks (poly1305_context_t *ctx, const byte *buf, size_t len, return 6 * sizeof (void *) + 18 * sizeof (u64); } +#endif /* !HAVE_ASM_POLY1305_BLOCKS */ + static unsigned int poly1305_final (poly1305_context_t *ctx, byte mac[POLY1305_TAGLEN]) { @@ -354,6 +390,8 @@ static unsigned int poly1305_final (poly1305_context_t *ctx, ADD_1305_32(H4, H3, H2, H1, H0, 0, x3_lo, x2_lo, x1_lo, x0_lo); \ } while (0) +#ifndef HAVE_ASM_POLY1305_BLOCKS + static unsigned int poly1305_blocks (poly1305_context_t *ctx, const byte *buf, size_t len, byte high_pad) @@ -403,6 +441,8 @@ poly1305_blocks (poly1305_context_t *ctx, const byte *buf, size_t len, return 6 * sizeof (void *) + 28 * sizeof (u32); } +#endif /* !HAVE_ASM_POLY1305_BLOCKS */ + static unsigned int poly1305_final (poly1305_context_t *ctx, byte mac[POLY1305_TAGLEN]) { |