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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 | // SPDX-License-Identifier: GPL-2.0-only /* * arch/arm64/lib/xor-neon.c * * Authors: Jackie Liu <liuyun01@kylinos.cn> * Copyright (C) 2018,Tianjin KYLIN Information Technology Co., Ltd. */ #include <linux/raid/xor.h> #include <linux/module.h> #include <asm/neon-intrinsics.h> void xor_arm64_neon_2(unsigned long bytes, unsigned long *p1, unsigned long *p2) { uint64_t *dp1 = (uint64_t *)p1; uint64_t *dp2 = (uint64_t *)p2; register uint64x2_t v0, v1, v2, v3; long lines = bytes / (sizeof(uint64x2_t) * 4); do { /* p1 ^= p2 */ v0 = veorq_u64(vld1q_u64(dp1 + 0), vld1q_u64(dp2 + 0)); v1 = veorq_u64(vld1q_u64(dp1 + 2), vld1q_u64(dp2 + 2)); v2 = veorq_u64(vld1q_u64(dp1 + 4), vld1q_u64(dp2 + 4)); v3 = veorq_u64(vld1q_u64(dp1 + 6), vld1q_u64(dp2 + 6)); /* store */ vst1q_u64(dp1 + 0, v0); vst1q_u64(dp1 + 2, v1); vst1q_u64(dp1 + 4, v2); vst1q_u64(dp1 + 6, v3); dp1 += 8; dp2 += 8; } while (--lines > 0); } void xor_arm64_neon_3(unsigned long bytes, unsigned long *p1, unsigned long *p2, unsigned long *p3) { uint64_t *dp1 = (uint64_t *)p1; uint64_t *dp2 = (uint64_t *)p2; uint64_t *dp3 = (uint64_t *)p3; register uint64x2_t v0, v1, v2, v3; long lines = bytes / (sizeof(uint64x2_t) * 4); do { /* p1 ^= p2 */ v0 = veorq_u64(vld1q_u64(dp1 + 0), vld1q_u64(dp2 + 0)); v1 = veorq_u64(vld1q_u64(dp1 + 2), vld1q_u64(dp2 + 2)); v2 = veorq_u64(vld1q_u64(dp1 + 4), vld1q_u64(dp2 + 4)); v3 = veorq_u64(vld1q_u64(dp1 + 6), vld1q_u64(dp2 + 6)); /* p1 ^= p3 */ v0 = veorq_u64(v0, vld1q_u64(dp3 + 0)); v1 = veorq_u64(v1, vld1q_u64(dp3 + 2)); v2 = veorq_u64(v2, vld1q_u64(dp3 + 4)); v3 = veorq_u64(v3, vld1q_u64(dp3 + 6)); /* store */ vst1q_u64(dp1 + 0, v0); vst1q_u64(dp1 + 2, v1); vst1q_u64(dp1 + 4, v2); vst1q_u64(dp1 + 6, v3); dp1 += 8; dp2 += 8; dp3 += 8; } while (--lines > 0); } void xor_arm64_neon_4(unsigned long bytes, unsigned long *p1, unsigned long *p2, unsigned long *p3, unsigned long *p4) { uint64_t *dp1 = (uint64_t *)p1; uint64_t *dp2 = (uint64_t *)p2; uint64_t *dp3 = (uint64_t *)p3; uint64_t *dp4 = (uint64_t *)p4; register uint64x2_t v0, v1, v2, v3; long lines = bytes / (sizeof(uint64x2_t) * 4); do { /* p1 ^= p2 */ v0 = veorq_u64(vld1q_u64(dp1 + 0), vld1q_u64(dp2 + 0)); v1 = veorq_u64(vld1q_u64(dp1 + 2), vld1q_u64(dp2 + 2)); v2 = veorq_u64(vld1q_u64(dp1 + 4), vld1q_u64(dp2 + 4)); v3 = veorq_u64(vld1q_u64(dp1 + 6), vld1q_u64(dp2 + 6)); /* p1 ^= p3 */ v0 = veorq_u64(v0, vld1q_u64(dp3 + 0)); v1 = veorq_u64(v1, vld1q_u64(dp3 + 2)); v2 = veorq_u64(v2, vld1q_u64(dp3 + 4)); v3 = veorq_u64(v3, vld1q_u64(dp3 + 6)); /* p1 ^= p4 */ v0 = veorq_u64(v0, vld1q_u64(dp4 + 0)); v1 = veorq_u64(v1, vld1q_u64(dp4 + 2)); v2 = veorq_u64(v2, vld1q_u64(dp4 + 4)); v3 = veorq_u64(v3, vld1q_u64(dp4 + 6)); /* store */ vst1q_u64(dp1 + 0, v0); vst1q_u64(dp1 + 2, v1); vst1q_u64(dp1 + 4, v2); vst1q_u64(dp1 + 6, v3); dp1 += 8; dp2 += 8; dp3 += 8; dp4 += 8; } while (--lines > 0); } void xor_arm64_neon_5(unsigned long bytes, unsigned long *p1, unsigned long *p2, unsigned long *p3, unsigned long *p4, unsigned long *p5) { uint64_t *dp1 = (uint64_t *)p1; uint64_t *dp2 = (uint64_t *)p2; uint64_t *dp3 = (uint64_t *)p3; uint64_t *dp4 = (uint64_t *)p4; uint64_t *dp5 = (uint64_t *)p5; register uint64x2_t v0, v1, v2, v3; long lines = bytes / (sizeof(uint64x2_t) * 4); do { /* p1 ^= p2 */ v0 = veorq_u64(vld1q_u64(dp1 + 0), vld1q_u64(dp2 + 0)); v1 = veorq_u64(vld1q_u64(dp1 + 2), vld1q_u64(dp2 + 2)); v2 = veorq_u64(vld1q_u64(dp1 + 4), vld1q_u64(dp2 + 4)); v3 = veorq_u64(vld1q_u64(dp1 + 6), vld1q_u64(dp2 + 6)); /* p1 ^= p3 */ v0 = veorq_u64(v0, vld1q_u64(dp3 + 0)); v1 = veorq_u64(v1, vld1q_u64(dp3 + 2)); v2 = veorq_u64(v2, vld1q_u64(dp3 + 4)); v3 = veorq_u64(v3, vld1q_u64(dp3 + 6)); /* p1 ^= p4 */ v0 = veorq_u64(v0, vld1q_u64(dp4 + 0)); v1 = veorq_u64(v1, vld1q_u64(dp4 + 2)); v2 = veorq_u64(v2, vld1q_u64(dp4 + 4)); v3 = veorq_u64(v3, vld1q_u64(dp4 + 6)); /* p1 ^= p5 */ v0 = veorq_u64(v0, vld1q_u64(dp5 + 0)); v1 = veorq_u64(v1, vld1q_u64(dp5 + 2)); v2 = veorq_u64(v2, vld1q_u64(dp5 + 4)); v3 = veorq_u64(v3, vld1q_u64(dp5 + 6)); /* store */ vst1q_u64(dp1 + 0, v0); vst1q_u64(dp1 + 2, v1); vst1q_u64(dp1 + 4, v2); vst1q_u64(dp1 + 6, v3); dp1 += 8; dp2 += 8; dp3 += 8; dp4 += 8; dp5 += 8; } while (--lines > 0); } struct xor_block_template const xor_block_inner_neon = { .name = "__inner_neon__", .do_2 = xor_arm64_neon_2, .do_3 = xor_arm64_neon_3, .do_4 = xor_arm64_neon_4, .do_5 = xor_arm64_neon_5, }; EXPORT_SYMBOL(xor_block_inner_neon); MODULE_AUTHOR("Jackie Liu <liuyun01@kylinos.cn>"); MODULE_DESCRIPTION("ARMv8 XOR Extensions"); MODULE_LICENSE("GPL"); |