diff options
Diffstat (limited to 'libotr/libgcrypt-1.8.7/cipher/sha256-armv8-aarch64-ce.S')
| -rw-r--r-- | libotr/libgcrypt-1.8.7/cipher/sha256-armv8-aarch64-ce.S | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/libotr/libgcrypt-1.8.7/cipher/sha256-armv8-aarch64-ce.S b/libotr/libgcrypt-1.8.7/cipher/sha256-armv8-aarch64-ce.S new file mode 100644 index 0000000..a4575da --- /dev/null +++ b/libotr/libgcrypt-1.8.7/cipher/sha256-armv8-aarch64-ce.S @@ -0,0 +1,218 @@ +/* sha256-armv8-aarch64-ce.S - ARM/CE accelerated SHA-256 transform function + * Copyright (C) 2016 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/>. + */ + +#include <config.h> + +#if defined(__AARCH64EL__) && \ + defined(HAVE_COMPATIBLE_GCC_AARCH64_PLATFORM_AS) && \ + defined(HAVE_GCC_INLINE_ASM_AARCH64_CRYPTO) && defined(USE_SHA256) + +.cpu generic+simd+crypto + +.text + + +#define GET_DATA_POINTER(reg, name) \ + adrp reg, :got:name ; \ + ldr reg, [reg, #:got_lo12:name] ; + + +/* Constants */ + +.align 4 +gcry_sha256_aarch64_ce_K: +.LK: + .long 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5 + .long 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5 + .long 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3 + .long 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174 + .long 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc + .long 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da + .long 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7 + .long 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967 + .long 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13 + .long 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85 + .long 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3 + .long 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070 + .long 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5 + .long 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3 + .long 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208 + .long 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 + + +/* Register macros */ + +#define vH0123 v0 +#define vH4567 v1 + +#define vABCD0 v2 +#define qABCD0 q2 +#define vABCD1 v3 +#define qABCD1 q3 +#define vEFGH v4 +#define qEFGH q4 + +#define vT0 v5 +#define vT1 v6 + +#define vW0 v16 +#define vW1 v17 +#define vW2 v18 +#define vW3 v19 + +#define vK0 v20 +#define vK1 v21 +#define vK2 v22 +#define vK3 v23 + + +/* Round macros */ + +#define _(...) /*_*/ + +#define do_loadk(nk0, nk1) ld1 {nk0.16b-nk1.16b},[x3],#32; +#define do_add(a, b) add a.4s, a.4s, b.4s; +#define do_sha256su0(w0, w1) sha256su0 w0.4s, w1.4s; +#define do_sha256su1(w0, w2, w3) sha256su1 w0.4s, w2.4s, w3.4s; + +#define do_rounds(k, nk0, nk1, w0, w1, w2, w3, loadk_fn, add_fn, su0_fn, su1_fn) \ + loadk_fn( v##nk0, v##nk1 ); \ + su0_fn( v##w0, v##w1 ); \ + mov vABCD1.16b, vABCD0.16b; \ + sha256h qABCD0, qEFGH, v##k.4s; \ + sha256h2 qEFGH, qABCD1, v##k.4s; \ + add_fn( v##nk0, v##w2 ); \ + su1_fn( v##w0, v##w2, v##w3 ); + + +/* Other functional macros */ + +#define CLEAR_REG(reg) eor reg.16b, reg.16b, reg.16b; + + +/* + * unsigned int + * _gcry_sha256_transform_armv8_ce (u32 state[8], const void *input_data, + * size_t num_blks) + */ +.align 3 +.globl _gcry_sha256_transform_armv8_ce +.type _gcry_sha256_transform_armv8_ce,%function; +_gcry_sha256_transform_armv8_ce: + /* input: + * r0: ctx, CTX + * r1: data (64*nblks bytes) + * r2: nblks + */ + + cbz x2, .Ldo_nothing; + + GET_DATA_POINTER(x3, .LK); + mov x4, x3 + + ld1 {vH0123.4s-vH4567.4s}, [x0] /* load state */ + + ld1 {vW0.16b-vW1.16b}, [x1], #32 + do_loadk(vK0, vK1) + ld1 {vW2.16b-vW3.16b}, [x1], #32 + mov vABCD0.16b, vH0123.16b + mov vEFGH.16b, vH4567.16b + + rev32 vW0.16b, vW0.16b + rev32 vW1.16b, vW1.16b + rev32 vW2.16b, vW2.16b + do_add(vK0, vW0) + rev32 vW3.16b, vW3.16b + do_add(vK1, vW1) + +.Loop: + do_rounds(K0, K2, K3, W0, W1, W2, W3, do_loadk, do_add, do_sha256su0, do_sha256su1) + sub x2,x2,#1 + do_rounds(K1, K3, _ , W1, W2, W3, W0, _ , do_add, do_sha256su0, do_sha256su1) + do_rounds(K2, K0, K1, W2, W3, W0, W1, do_loadk, do_add, do_sha256su0, do_sha256su1) + do_rounds(K3, K1, _ , W3, W0, W1, W2, _ , do_add, do_sha256su0, do_sha256su1) + + do_rounds(K0, K2, K3, W0, W1, W2, W3, do_loadk, do_add, do_sha256su0, do_sha256su1) + do_rounds(K1, K3, _ , W1, W2, W3, W0, _ , do_add, do_sha256su0, do_sha256su1) + do_rounds(K2, K0, K1, W2, W3, W0, W1, do_loadk, do_add, do_sha256su0, do_sha256su1) + do_rounds(K3, K1, _ , W3, W0, W1, W2, _ , do_add, do_sha256su0, do_sha256su1) + + do_rounds(K0, K2, K3, W0, W1, W2, W3, do_loadk, do_add, do_sha256su0, do_sha256su1) + do_rounds(K1, K3, _ , W1, W2, W3, W0, _ , do_add, do_sha256su0, do_sha256su1) + do_rounds(K2, K0, K1, W2, W3, W0, W1, do_loadk, do_add, do_sha256su0, do_sha256su1) + do_rounds(K3, K1, _ , W3, W0, W1, W2, _ , do_add, do_sha256su0, do_sha256su1) + + cbz x2, .Lend + + do_rounds(K0, K2, K3, W0, _ , W2, W3, do_loadk, do_add, _, _) + ld1 {vW0.16b}, [x1], #16 + mov x3, x4 + do_rounds(K1, K3, _ , W1, _ , W3, _ , _ , do_add, _, _) + ld1 {vW1.16b}, [x1], #16 + rev32 vW0.16b, vW0.16b + do_rounds(K2, K0, K1, W2, _ , W0, _ , do_loadk, do_add, _, _) + rev32 vW1.16b, vW1.16b + ld1 {vW2.16b}, [x1], #16 + do_rounds(K3, K1, _ , W3, _ , W1, _ , _ , do_add, _, _) + ld1 {vW3.16b}, [x1], #16 + + do_add(vH0123, vABCD0) + do_add(vH4567, vEFGH) + + rev32 vW2.16b, vW2.16b + mov vABCD0.16b, vH0123.16b + rev32 vW3.16b, vW3.16b + mov vEFGH.16b, vH4567.16b + + b .Loop + +.Lend: + + do_rounds(K0, K2, K3, W0, _ , W2, W3, do_loadk, do_add, _, _) + do_rounds(K1, K3, _ , W1, _ , W3, _ , _ , do_add, _, _) + do_rounds(K2, _ , _ , W2, _ , _ , _ , _ , _, _, _) + do_rounds(K3, _ , _ , W3, _ , _ , _ , _ , _, _, _) + + CLEAR_REG(vW0) + CLEAR_REG(vW1) + CLEAR_REG(vW2) + CLEAR_REG(vW3) + CLEAR_REG(vK0) + CLEAR_REG(vK1) + CLEAR_REG(vK2) + CLEAR_REG(vK3) + + do_add(vH0123, vABCD0) + do_add(vH4567, vEFGH) + + CLEAR_REG(vABCD0) + CLEAR_REG(vABCD1) + CLEAR_REG(vEFGH) + + st1 {vH0123.4s-vH4567.4s}, [x0] /* store state */ + + CLEAR_REG(vH0123) + CLEAR_REG(vH4567) + +.Ldo_nothing: + mov x0, #0 + ret +.size _gcry_sha256_transform_armv8_ce,.-_gcry_sha256_transform_armv8_ce; + +#endif |