projects / thirdparty / kernel / stable.git / blame
| Commit | Line | Data |
|---|---|---|
| c942fddf | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| cba1cce0 JK |
2 | /* |
| 3 | * Shared glue code for 128bit block ciphers, AVX assembler macros | |
| 4 | * | |
| a05248ed | 5 | * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi> |
| cba1cce0 JK |
6 | */ |
| 7 | ||
| 8 | #define load_8way(src, x0, x1, x2, x3, x4, x5, x6, x7) \ | |
| 9 | vmovdqu (0*16)(src), x0; \ | |
| 10 | vmovdqu (1*16)(src), x1; \ | |
| 11 | vmovdqu (2*16)(src), x2; \ | |
| 12 | vmovdqu (3*16)(src), x3; \ | |
| 13 | vmovdqu (4*16)(src), x4; \ | |
| 14 | vmovdqu (5*16)(src), x5; \ | |
| 15 | vmovdqu (6*16)(src), x6; \ | |
| 16 | vmovdqu (7*16)(src), x7; | |
| 17 | ||
| 18 | #define store_8way(dst, x0, x1, x2, x3, x4, x5, x6, x7) \ | |
| 19 | vmovdqu x0, (0*16)(dst); \ | |
| 20 | vmovdqu x1, (1*16)(dst); \ | |
| 21 | vmovdqu x2, (2*16)(dst); \ | |
| 22 | vmovdqu x3, (3*16)(dst); \ | |
| 23 | vmovdqu x4, (4*16)(dst); \ | |
| 24 | vmovdqu x5, (5*16)(dst); \ | |
| 25 | vmovdqu x6, (6*16)(dst); \ | |
| 26 | vmovdqu x7, (7*16)(dst); | |
| 27 | ||
| 28 | #define store_cbc_8way(src, dst, x0, x1, x2, x3, x4, x5, x6, x7) \ | |
| 29 | vpxor (0*16)(src), x1, x1; \ | |
| 30 | vpxor (1*16)(src), x2, x2; \ | |
| 31 | vpxor (2*16)(src), x3, x3; \ | |
| 32 | vpxor (3*16)(src), x4, x4; \ | |
| 33 | vpxor (4*16)(src), x5, x5; \ | |
| 34 | vpxor (5*16)(src), x6, x6; \ | |
| 35 | vpxor (6*16)(src), x7, x7; \ | |
| 36 | store_8way(dst, x0, x1, x2, x3, x4, x5, x6, x7); | |
| 37 | ||
| 38 | #define inc_le128(x, minus_one, tmp) \ | |
| 39 | vpcmpeqq minus_one, x, tmp; \ | |
| 40 | vpsubq minus_one, x, x; \ | |
| 41 | vpslldq $8, tmp, tmp; \ | |
| 42 | vpsubq tmp, x, x; | |
| 43 | ||
| 44 | #define load_ctr_8way(iv, bswap, x0, x1, x2, x3, x4, x5, x6, x7, t0, t1, t2) \ | |
| 45 | vpcmpeqd t0, t0, t0; \ | |
| 46 | vpsrldq $8, t0, t0; /* low: -1, high: 0 */ \ | |
| 47 | vmovdqa bswap, t1; \ | |
| 48 | \ | |
| 49 | /* load IV and byteswap */ \ | |
| 50 | vmovdqu (iv), x7; \ | |
| 51 | vpshufb t1, x7, x0; \ | |
| 52 | \ | |
| 53 | /* construct IVs */ \ | |
| 54 | inc_le128(x7, t0, t2); \ | |
| 55 | vpshufb t1, x7, x1; \ | |
| 56 | inc_le128(x7, t0, t2); \ | |
| 57 | vpshufb t1, x7, x2; \ | |
| 58 | inc_le128(x7, t0, t2); \ | |
| 59 | vpshufb t1, x7, x3; \ | |
| 60 | inc_le128(x7, t0, t2); \ | |
| 61 | vpshufb t1, x7, x4; \ | |
| 62 | inc_le128(x7, t0, t2); \ | |
| 63 | vpshufb t1, x7, x5; \ | |
| 64 | inc_le128(x7, t0, t2); \ | |
| 65 | vpshufb t1, x7, x6; \ | |
| 66 | inc_le128(x7, t0, t2); \ | |
| 67 | vmovdqa x7, t2; \ | |
| 68 | vpshufb t1, x7, x7; \ | |
| 69 | inc_le128(t2, t0, t1); \ | |
| 70 | vmovdqu t2, (iv); | |
| 71 | ||
| 72 | #define store_ctr_8way(src, dst, x0, x1, x2, x3, x4, x5, x6, x7) \ | |
| 73 | vpxor (0*16)(src), x0, x0; \ | |
| 74 | vpxor (1*16)(src), x1, x1; \ | |
| 75 | vpxor (2*16)(src), x2, x2; \ | |
| 76 | vpxor (3*16)(src), x3, x3; \ | |
| 77 | vpxor (4*16)(src), x4, x4; \ | |
| 78 | vpxor (5*16)(src), x5, x5; \ | |
| 79 | vpxor (6*16)(src), x6, x6; \ | |
| 80 | vpxor (7*16)(src), x7, x7; \ | |
| 81 | store_8way(dst, x0, x1, x2, x3, x4, x5, x6, x7); | |
| a05248ed JK |
82 | |
| 83 | #define gf128mul_x_ble(iv, mask, tmp) \ | |
| 84 | vpsrad $31, iv, tmp; \ | |
| 85 | vpaddq iv, iv, iv; \ | |
| 86 | vpshufd $0x13, tmp, tmp; \ | |
| 87 | vpand mask, tmp, tmp; \ | |
| 88 | vpxor tmp, iv, iv; | |
| 89 | ||
| 90 | #define load_xts_8way(iv, src, dst, x0, x1, x2, x3, x4, x5, x6, x7, tiv, t0, \ | |
| 91 | t1, xts_gf128mul_and_shl1_mask) \ | |
| 92 | vmovdqa xts_gf128mul_and_shl1_mask, t0; \ | |
| 93 | \ | |
| 94 | /* load IV */ \ | |
| 95 | vmovdqu (iv), tiv; \ | |
| 96 | vpxor (0*16)(src), tiv, x0; \ | |
| 97 | vmovdqu tiv, (0*16)(dst); \ | |
| 98 | \ | |
| 99 | /* construct and store IVs, also xor with source */ \ | |
| 100 | gf128mul_x_ble(tiv, t0, t1); \ | |
| 101 | vpxor (1*16)(src), tiv, x1; \ | |
| 102 | vmovdqu tiv, (1*16)(dst); \ | |
| 103 | \ | |
| 104 | gf128mul_x_ble(tiv, t0, t1); \ | |
| 105 | vpxor (2*16)(src), tiv, x2; \ | |
| 106 | vmovdqu tiv, (2*16)(dst); \ | |
| 107 | \ | |
| 108 | gf128mul_x_ble(tiv, t0, t1); \ | |
| 109 | vpxor (3*16)(src), tiv, x3; \ | |
| 110 | vmovdqu tiv, (3*16)(dst); \ | |
| 111 | \ | |
| 112 | gf128mul_x_ble(tiv, t0, t1); \ | |
| 113 | vpxor (4*16)(src), tiv, x4; \ | |
| 114 | vmovdqu tiv, (4*16)(dst); \ | |
| 115 | \ | |
| 116 | gf128mul_x_ble(tiv, t0, t1); \ | |
| 117 | vpxor (5*16)(src), tiv, x5; \ | |
| 118 | vmovdqu tiv, (5*16)(dst); \ | |
| 119 | \ | |
| 120 | gf128mul_x_ble(tiv, t0, t1); \ | |
| 121 | vpxor (6*16)(src), tiv, x6; \ | |
| 122 | vmovdqu tiv, (6*16)(dst); \ | |
| 123 | \ | |
| 124 | gf128mul_x_ble(tiv, t0, t1); \ | |
| 125 | vpxor (7*16)(src), tiv, x7; \ | |
| 126 | vmovdqu tiv, (7*16)(dst); \ | |
| 127 | \ | |
| 128 | gf128mul_x_ble(tiv, t0, t1); \ | |
| 129 | vmovdqu tiv, (iv); | |
| 130 | ||
| 131 | #define store_xts_8way(dst, x0, x1, x2, x3, x4, x5, x6, x7) \ | |
| 132 | vpxor (0*16)(dst), x0, x0; \ | |
| 133 | vpxor (1*16)(dst), x1, x1; \ | |
| 134 | vpxor (2*16)(dst), x2, x2; \ | |
| 135 | vpxor (3*16)(dst), x3, x3; \ | |
| 136 | vpxor (4*16)(dst), x4, x4; \ | |
| 137 | vpxor (5*16)(dst), x5, x5; \ | |
| 138 | vpxor (6*16)(dst), x6, x6; \ | |
| 139 | vpxor (7*16)(dst), x7, x7; \ | |
| 140 | store_8way(dst, x0, x1, x2, x3, x4, x5, x6, x7); |