1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * sha512-ce-core.S - core SHA-384/SHA-512 transform using v8 Crypto Extensions 4 * 5 * Copyright (C) 2018 Linaro Ltd <ard.biesheuvel@linaro.org> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 */ 11 12#include <linux/linkage.h> 13#include <asm/assembler.h> 14 15 .irp b,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19 16 .set .Lq\b, \b 17 .set .Lv\b\().2d, \b 18 .endr 19 20 .macro sha512h, rd, rn, rm 21 .inst 0xce608000 | .L\rd | (.L\rn << 5) | (.L\rm << 16) 22 .endm 23 24 .macro sha512h2, rd, rn, rm 25 .inst 0xce608400 | .L\rd | (.L\rn << 5) | (.L\rm << 16) 26 .endm 27 28 .macro sha512su0, rd, rn 29 .inst 0xcec08000 | .L\rd | (.L\rn << 5) 30 .endm 31 32 .macro sha512su1, rd, rn, rm 33 .inst 0xce608800 | .L\rd | (.L\rn << 5) | (.L\rm << 16) 34 .endm 35 36 /* 37 * The SHA-512 round constants 38 */ 39 .section ".rodata", "a" 40 .align 4 41.Lsha512_rcon: 42 .quad 0x428a2f98d728ae22, 0x7137449123ef65cd 43 .quad 0xb5c0fbcfec4d3b2f, 0xe9b5dba58189dbbc 44 .quad 0x3956c25bf348b538, 0x59f111f1b605d019 45 .quad 0x923f82a4af194f9b, 0xab1c5ed5da6d8118 46 .quad 0xd807aa98a3030242, 0x12835b0145706fbe 47 .quad 0x243185be4ee4b28c, 0x550c7dc3d5ffb4e2 48 .quad 0x72be5d74f27b896f, 0x80deb1fe3b1696b1 49 .quad 0x9bdc06a725c71235, 0xc19bf174cf692694 50 .quad 0xe49b69c19ef14ad2, 0xefbe4786384f25e3 51 .quad 0x0fc19dc68b8cd5b5, 0x240ca1cc77ac9c65 52 .quad 0x2de92c6f592b0275, 0x4a7484aa6ea6e483 53 .quad 0x5cb0a9dcbd41fbd4, 0x76f988da831153b5 54 .quad 0x983e5152ee66dfab, 0xa831c66d2db43210 55 .quad 0xb00327c898fb213f, 0xbf597fc7beef0ee4 56 .quad 0xc6e00bf33da88fc2, 0xd5a79147930aa725 57 .quad 0x06ca6351e003826f, 0x142929670a0e6e70 58 .quad 0x27b70a8546d22ffc, 0x2e1b21385c26c926 59 .quad 0x4d2c6dfc5ac42aed, 0x53380d139d95b3df 60 .quad 0x650a73548baf63de, 0x766a0abb3c77b2a8 61 .quad 0x81c2c92e47edaee6, 0x92722c851482353b 62 .quad 0xa2bfe8a14cf10364, 0xa81a664bbc423001 63 .quad 0xc24b8b70d0f89791, 0xc76c51a30654be30 64 .quad 0xd192e819d6ef5218, 0xd69906245565a910 65 .quad 0xf40e35855771202a, 0x106aa07032bbd1b8 66 .quad 0x19a4c116b8d2d0c8, 0x1e376c085141ab53 67 .quad 0x2748774cdf8eeb99, 0x34b0bcb5e19b48a8 68 .quad 0x391c0cb3c5c95a63, 0x4ed8aa4ae3418acb 69 .quad 0x5b9cca4f7763e373, 0x682e6ff3d6b2b8a3 70 .quad 0x748f82ee5defb2fc, 0x78a5636f43172f60 71 .quad 0x84c87814a1f0ab72, 0x8cc702081a6439ec 72 .quad 0x90befffa23631e28, 0xa4506cebde82bde9 73 .quad 0xbef9a3f7b2c67915, 0xc67178f2e372532b 74 .quad 0xca273eceea26619c, 0xd186b8c721c0c207 75 .quad 0xeada7dd6cde0eb1e, 0xf57d4f7fee6ed178 76 .quad 0x06f067aa72176fba, 0x0a637dc5a2c898a6 77 .quad 0x113f9804bef90dae, 0x1b710b35131c471b 78 .quad 0x28db77f523047d84, 0x32caab7b40c72493 79 .quad 0x3c9ebe0a15c9bebc, 0x431d67c49c100d4c 80 .quad 0x4cc5d4becb3e42b6, 0x597f299cfc657e2a 81 .quad 0x5fcb6fab3ad6faec, 0x6c44198c4a475817 82 83 .macro dround, i0, i1, i2, i3, i4, rc0, rc1, in0, in1, in2, in3, in4 84 .ifnb \rc1 85 ld1 {v\rc1\().2d}, [x4], #16 86 .endif 87 add v5.2d, v\rc0\().2d, v\in0\().2d 88 ext v6.16b, v\i2\().16b, v\i3\().16b, #8 89 ext v5.16b, v5.16b, v5.16b, #8 90 ext v7.16b, v\i1\().16b, v\i2\().16b, #8 91 add v\i3\().2d, v\i3\().2d, v5.2d 92 .ifnb \in1 93 ext v5.16b, v\in3\().16b, v\in4\().16b, #8 94 sha512su0 v\in0\().2d, v\in1\().2d 95 .endif 96 sha512h q\i3, q6, v7.2d 97 .ifnb \in1 98 sha512su1 v\in0\().2d, v\in2\().2d, v5.2d 99 .endif 100 add v\i4\().2d, v\i1\().2d, v\i3\().2d 101 sha512h2 q\i3, q\i1, v\i0\().2d 102 .endm 103 104 /* 105 * void sha512_ce_transform(struct sha512_state *sst, u8 const *src, 106 * int blocks) 107 */ 108 .text 109ENTRY(sha512_ce_transform) 110 frame_push 3 111 112 mov x19, x0 113 mov x20, x1 114 mov x21, x2 115 116 /* load state */ 1170: ld1 {v8.2d-v11.2d}, [x19] 118 119 /* load first 4 round constants */ 120 adr_l x3, .Lsha512_rcon 121 ld1 {v20.2d-v23.2d}, [x3], #64 122 123 /* load input */ 1241: ld1 {v12.2d-v15.2d}, [x20], #64 125 ld1 {v16.2d-v19.2d}, [x20], #64 126 sub w21, w21, #1 127 128CPU_LE( rev64 v12.16b, v12.16b ) 129CPU_LE( rev64 v13.16b, v13.16b ) 130CPU_LE( rev64 v14.16b, v14.16b ) 131CPU_LE( rev64 v15.16b, v15.16b ) 132CPU_LE( rev64 v16.16b, v16.16b ) 133CPU_LE( rev64 v17.16b, v17.16b ) 134CPU_LE( rev64 v18.16b, v18.16b ) 135CPU_LE( rev64 v19.16b, v19.16b ) 136 137 mov x4, x3 // rc pointer 138 139 mov v0.16b, v8.16b 140 mov v1.16b, v9.16b 141 mov v2.16b, v10.16b 142 mov v3.16b, v11.16b 143 144 // v0 ab cd -- ef gh ab 145 // v1 cd -- ef gh ab cd 146 // v2 ef gh ab cd -- ef 147 // v3 gh ab cd -- ef gh 148 // v4 -- ef gh ab cd -- 149 150 dround 0, 1, 2, 3, 4, 20, 24, 12, 13, 19, 16, 17 151 dround 3, 0, 4, 2, 1, 21, 25, 13, 14, 12, 17, 18 152 dround 2, 3, 1, 4, 0, 22, 26, 14, 15, 13, 18, 19 153 dround 4, 2, 0, 1, 3, 23, 27, 15, 16, 14, 19, 12 154 dround 1, 4, 3, 0, 2, 24, 28, 16, 17, 15, 12, 13 155 156 dround 0, 1, 2, 3, 4, 25, 29, 17, 18, 16, 13, 14 157 dround 3, 0, 4, 2, 1, 26, 30, 18, 19, 17, 14, 15 158 dround 2, 3, 1, 4, 0, 27, 31, 19, 12, 18, 15, 16 159 dround 4, 2, 0, 1, 3, 28, 24, 12, 13, 19, 16, 17 160 dround 1, 4, 3, 0, 2, 29, 25, 13, 14, 12, 17, 18 161 162 dround 0, 1, 2, 3, 4, 30, 26, 14, 15, 13, 18, 19 163 dround 3, 0, 4, 2, 1, 31, 27, 15, 16, 14, 19, 12 164 dround 2, 3, 1, 4, 0, 24, 28, 16, 17, 15, 12, 13 165 dround 4, 2, 0, 1, 3, 25, 29, 17, 18, 16, 13, 14 166 dround 1, 4, 3, 0, 2, 26, 30, 18, 19, 17, 14, 15 167 168 dround 0, 1, 2, 3, 4, 27, 31, 19, 12, 18, 15, 16 169 dround 3, 0, 4, 2, 1, 28, 24, 12, 13, 19, 16, 17 170 dround 2, 3, 1, 4, 0, 29, 25, 13, 14, 12, 17, 18 171 dround 4, 2, 0, 1, 3, 30, 26, 14, 15, 13, 18, 19 172 dround 1, 4, 3, 0, 2, 31, 27, 15, 16, 14, 19, 12 173 174 dround 0, 1, 2, 3, 4, 24, 28, 16, 17, 15, 12, 13 175 dround 3, 0, 4, 2, 1, 25, 29, 17, 18, 16, 13, 14 176 dround 2, 3, 1, 4, 0, 26, 30, 18, 19, 17, 14, 15 177 dround 4, 2, 0, 1, 3, 27, 31, 19, 12, 18, 15, 16 178 dround 1, 4, 3, 0, 2, 28, 24, 12, 13, 19, 16, 17 179 180 dround 0, 1, 2, 3, 4, 29, 25, 13, 14, 12, 17, 18 181 dround 3, 0, 4, 2, 1, 30, 26, 14, 15, 13, 18, 19 182 dround 2, 3, 1, 4, 0, 31, 27, 15, 16, 14, 19, 12 183 dround 4, 2, 0, 1, 3, 24, 28, 16, 17, 15, 12, 13 184 dround 1, 4, 3, 0, 2, 25, 29, 17, 18, 16, 13, 14 185 186 dround 0, 1, 2, 3, 4, 26, 30, 18, 19, 17, 14, 15 187 dround 3, 0, 4, 2, 1, 27, 31, 19, 12, 18, 15, 16 188 dround 2, 3, 1, 4, 0, 28, 24, 12 189 dround 4, 2, 0, 1, 3, 29, 25, 13 190 dround 1, 4, 3, 0, 2, 30, 26, 14 191 192 dround 0, 1, 2, 3, 4, 31, 27, 15 193 dround 3, 0, 4, 2, 1, 24, , 16 194 dround 2, 3, 1, 4, 0, 25, , 17 195 dround 4, 2, 0, 1, 3, 26, , 18 196 dround 1, 4, 3, 0, 2, 27, , 19 197 198 /* update state */ 199 add v8.2d, v8.2d, v0.2d 200 add v9.2d, v9.2d, v1.2d 201 add v10.2d, v10.2d, v2.2d 202 add v11.2d, v11.2d, v3.2d 203 204 /* handled all input blocks? */ 205 cbz w21, 3f 206 207 if_will_cond_yield_neon 208 st1 {v8.2d-v11.2d}, [x19] 209 do_cond_yield_neon 210 b 0b 211 endif_yield_neon 212 213 b 1b 214 215 /* store new state */ 2163: st1 {v8.2d-v11.2d}, [x19] 217 frame_pop 218 ret 219ENDPROC(sha512_ce_transform) 220