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Diffstat (limited to 'comm/third_party/libgcrypt/cipher/poly1305-s390x.S')
| -rw-r--r-- | comm/third_party/libgcrypt/cipher/poly1305-s390x.S | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/comm/third_party/libgcrypt/cipher/poly1305-s390x.S b/comm/third_party/libgcrypt/cipher/poly1305-s390x.S new file mode 100644 index 0000000000..844245f6ad --- /dev/null +++ b/comm/third_party/libgcrypt/cipher/poly1305-s390x.S @@ -0,0 +1,87 @@ +/* poly1305-s390x.S - zSeries implementation of Poly1305 + * + * Copyright (C) 2020 Jussi Kivilinna <jussi.kivilinna@iki.fi> + * + * This file is part of Libgcrypt. + * + * Libgcrypt is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as + * published by the Free Software Foundation; either version 2.1 of + * the License, or (at your option) any later version. + * + * Libgcrypt is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#if defined (__s390x__) && __GNUC__ >= 4 && __ARCH__ >= 9 +#include <config.h> +#if defined(HAVE_GCC_INLINE_ASM_S390X) + +#include "asm-poly1305-s390x.h" + +.text + +.balign 8 +.globl _gcry_poly1305_s390x_blocks1 +ELF(.type _gcry_poly1305_s390x_blocks1,@function;) + +_gcry_poly1305_s390x_blocks1: + /* input: + * %r2: poly1305-state + * %r3: src + * %r4: len + * %r5: high_pad + */ + CFI_STARTPROC(); + + stmg %r6, %r14, 6 * 8(%r15); + + lgr POLY_RSTATE, %r2; + lgr POLY_RSRC, %r3; + srlg %r0, %r4, 4; + + cgije %r5, 0, .Lpoly_high0; + + POLY1305_LOAD_STATE(); + +.balign 4 +.Lpoly_loop_high1: + POLY1305_BLOCK_PART1(0 * 16); + INC_POLY1305_SRC(1 * 16); +.Lpoly_block_part2: + POLY1305_BLOCK_PART2(); + POLY1305_BLOCK_PART3(); + POLY1305_BLOCK_PART4(); + POLY1305_BLOCK_PART5(); + POLY1305_BLOCK_PART6(); + POLY1305_BLOCK_PART7(); + POLY1305_BLOCK_PART8(); + + brctg %r0, .Lpoly_loop_high1; + +.balign 4 +.Lpoly_done: + POLY1305_STORE_STATE(); + + lmg %r6, %r14, 6 * 8(%r15); + xgr %r2, %r2; + br %r14; + +.balign 4 +.Lpoly_high0: + lghi %r0, 1; + POLY1305_LOAD_STATE(); + POLY1305_BLOCK_PART1_HB(0 * 16, 0); + j .Lpoly_block_part2; + + CFI_ENDPROC(); +ELF(.size _gcry_poly1305_s390x_blocks1, + .-_gcry_poly1305_s390x_blocks1;) + +#endif /*HAVE_GCC_INLINE_ASM_S390X*/ +#endif /*__s390x__*/ |