mirror of
https://github.com/go-gitea/gitea
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267 lines
8.0 KiB
ArmAsm
267 lines
8.0 KiB
ArmAsm
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//+build !noasm,!appengine
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// SHA intrinsic version of SHA256
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// Kristofer Peterson, (C) 2018.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#include "textflag.h"
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DATA K<>+0x00(SB)/4, $0x428a2f98
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DATA K<>+0x04(SB)/4, $0x71374491
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DATA K<>+0x08(SB)/4, $0xb5c0fbcf
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DATA K<>+0x0c(SB)/4, $0xe9b5dba5
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DATA K<>+0x10(SB)/4, $0x3956c25b
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DATA K<>+0x14(SB)/4, $0x59f111f1
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DATA K<>+0x18(SB)/4, $0x923f82a4
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DATA K<>+0x1c(SB)/4, $0xab1c5ed5
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DATA K<>+0x20(SB)/4, $0xd807aa98
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DATA K<>+0x24(SB)/4, $0x12835b01
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DATA K<>+0x28(SB)/4, $0x243185be
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DATA K<>+0x2c(SB)/4, $0x550c7dc3
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DATA K<>+0x30(SB)/4, $0x72be5d74
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DATA K<>+0x34(SB)/4, $0x80deb1fe
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DATA K<>+0x38(SB)/4, $0x9bdc06a7
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DATA K<>+0x3c(SB)/4, $0xc19bf174
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DATA K<>+0x40(SB)/4, $0xe49b69c1
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DATA K<>+0x44(SB)/4, $0xefbe4786
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DATA K<>+0x48(SB)/4, $0x0fc19dc6
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DATA K<>+0x4c(SB)/4, $0x240ca1cc
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DATA K<>+0x50(SB)/4, $0x2de92c6f
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DATA K<>+0x54(SB)/4, $0x4a7484aa
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DATA K<>+0x58(SB)/4, $0x5cb0a9dc
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DATA K<>+0x5c(SB)/4, $0x76f988da
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DATA K<>+0x60(SB)/4, $0x983e5152
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DATA K<>+0x64(SB)/4, $0xa831c66d
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DATA K<>+0x68(SB)/4, $0xb00327c8
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DATA K<>+0x6c(SB)/4, $0xbf597fc7
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DATA K<>+0x70(SB)/4, $0xc6e00bf3
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DATA K<>+0x74(SB)/4, $0xd5a79147
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DATA K<>+0x78(SB)/4, $0x06ca6351
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DATA K<>+0x7c(SB)/4, $0x14292967
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DATA K<>+0x80(SB)/4, $0x27b70a85
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DATA K<>+0x84(SB)/4, $0x2e1b2138
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DATA K<>+0x88(SB)/4, $0x4d2c6dfc
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DATA K<>+0x8c(SB)/4, $0x53380d13
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DATA K<>+0x90(SB)/4, $0x650a7354
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DATA K<>+0x94(SB)/4, $0x766a0abb
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DATA K<>+0x98(SB)/4, $0x81c2c92e
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DATA K<>+0x9c(SB)/4, $0x92722c85
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DATA K<>+0xa0(SB)/4, $0xa2bfe8a1
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DATA K<>+0xa4(SB)/4, $0xa81a664b
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DATA K<>+0xa8(SB)/4, $0xc24b8b70
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DATA K<>+0xac(SB)/4, $0xc76c51a3
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DATA K<>+0xb0(SB)/4, $0xd192e819
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DATA K<>+0xb4(SB)/4, $0xd6990624
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DATA K<>+0xb8(SB)/4, $0xf40e3585
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DATA K<>+0xbc(SB)/4, $0x106aa070
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DATA K<>+0xc0(SB)/4, $0x19a4c116
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DATA K<>+0xc4(SB)/4, $0x1e376c08
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DATA K<>+0xc8(SB)/4, $0x2748774c
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DATA K<>+0xcc(SB)/4, $0x34b0bcb5
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DATA K<>+0xd0(SB)/4, $0x391c0cb3
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DATA K<>+0xd4(SB)/4, $0x4ed8aa4a
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DATA K<>+0xd8(SB)/4, $0x5b9cca4f
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DATA K<>+0xdc(SB)/4, $0x682e6ff3
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DATA K<>+0xe0(SB)/4, $0x748f82ee
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DATA K<>+0xe4(SB)/4, $0x78a5636f
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DATA K<>+0xe8(SB)/4, $0x84c87814
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DATA K<>+0xec(SB)/4, $0x8cc70208
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DATA K<>+0xf0(SB)/4, $0x90befffa
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DATA K<>+0xf4(SB)/4, $0xa4506ceb
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DATA K<>+0xf8(SB)/4, $0xbef9a3f7
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DATA K<>+0xfc(SB)/4, $0xc67178f2
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GLOBL K<>(SB), RODATA|NOPTR, $256
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DATA SHUF_MASK<>+0x00(SB)/8, $0x0405060700010203
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DATA SHUF_MASK<>+0x08(SB)/8, $0x0c0d0e0f08090a0b
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GLOBL SHUF_MASK<>(SB), RODATA|NOPTR, $16
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// Register Usage
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// BX base address of constant table (constant)
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// DX hash_state (constant)
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// SI hash_data.data
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// DI hash_data.data + hash_data.length - 64 (constant)
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// X0 scratch
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// X1 scratch
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// X2 working hash state // ABEF
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// X3 working hash state // CDGH
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// X4 first 16 bytes of block
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// X5 second 16 bytes of block
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// X6 third 16 bytes of block
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// X7 fourth 16 bytes of block
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// X12 saved hash state // ABEF
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// X13 saved hash state // CDGH
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// X15 data shuffle mask (constant)
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TEXT ·blockSha(SB), NOSPLIT, $0-32
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MOVQ h+0(FP), DX
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MOVQ message_base+8(FP), SI
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MOVQ message_len+16(FP), DI
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LEAQ -64(SI)(DI*1), DI
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MOVOU (DX), X2
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MOVOU 16(DX), X1
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MOVO X2, X3
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PUNPCKLLQ X1, X2
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PUNPCKHLQ X1, X3
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PSHUFD $0x27, X2, X2
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PSHUFD $0x27, X3, X3
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MOVO SHUF_MASK<>(SB), X15
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LEAQ K<>(SB), BX
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JMP TEST
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LOOP:
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MOVO X2, X12
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MOVO X3, X13
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// load block and shuffle
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MOVOU (SI), X4
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MOVOU 16(SI), X5
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MOVOU 32(SI), X6
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MOVOU 48(SI), X7
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PSHUFB X15, X4
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PSHUFB X15, X5
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PSHUFB X15, X6
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PSHUFB X15, X7
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#define ROUND456 \
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PADDL X5, X0 \
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LONG $0xdacb380f \ // SHA256RNDS2 XMM3, XMM2
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MOVO X5, X1 \
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LONG $0x0f3a0f66; WORD $0x04cc \ // PALIGNR XMM1, XMM4, 4
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PADDL X1, X6 \
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LONG $0xf5cd380f \ // SHA256MSG2 XMM6, XMM5
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PSHUFD $0x4e, X0, X0 \
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LONG $0xd3cb380f \ // SHA256RNDS2 XMM2, XMM3
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LONG $0xe5cc380f // SHA256MSG1 XMM4, XMM5
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#define ROUND567 \
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PADDL X6, X0 \
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LONG $0xdacb380f \ // SHA256RNDS2 XMM3, XMM2
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MOVO X6, X1 \
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LONG $0x0f3a0f66; WORD $0x04cd \ // PALIGNR XMM1, XMM5, 4
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PADDL X1, X7 \
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LONG $0xfecd380f \ // SHA256MSG2 XMM7, XMM6
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PSHUFD $0x4e, X0, X0 \
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LONG $0xd3cb380f \ // SHA256RNDS2 XMM2, XMM3
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LONG $0xeecc380f // SHA256MSG1 XMM5, XMM6
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#define ROUND674 \
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PADDL X7, X0 \
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LONG $0xdacb380f \ // SHA256RNDS2 XMM3, XMM2
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MOVO X7, X1 \
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LONG $0x0f3a0f66; WORD $0x04ce \ // PALIGNR XMM1, XMM6, 4
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PADDL X1, X4 \
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LONG $0xe7cd380f \ // SHA256MSG2 XMM4, XMM7
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PSHUFD $0x4e, X0, X0 \
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LONG $0xd3cb380f \ // SHA256RNDS2 XMM2, XMM3
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LONG $0xf7cc380f // SHA256MSG1 XMM6, XMM7
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#define ROUND745 \
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PADDL X4, X0 \
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LONG $0xdacb380f \ // SHA256RNDS2 XMM3, XMM2
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MOVO X4, X1 \
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LONG $0x0f3a0f66; WORD $0x04cf \ // PALIGNR XMM1, XMM7, 4
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PADDL X1, X5 \
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LONG $0xeccd380f \ // SHA256MSG2 XMM5, XMM4
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PSHUFD $0x4e, X0, X0 \
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LONG $0xd3cb380f \ // SHA256RNDS2 XMM2, XMM3
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LONG $0xfccc380f // SHA256MSG1 XMM7, XMM4
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// rounds 0-3
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MOVO (BX), X0
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PADDL X4, X0
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LONG $0xdacb380f // SHA256RNDS2 XMM3, XMM2
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PSHUFD $0x4e, X0, X0
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LONG $0xd3cb380f // SHA256RNDS2 XMM2, XMM3
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// rounds 4-7
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MOVO 1*16(BX), X0
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PADDL X5, X0
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LONG $0xdacb380f // SHA256RNDS2 XMM3, XMM2
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PSHUFD $0x4e, X0, X0
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LONG $0xd3cb380f // SHA256RNDS2 XMM2, XMM3
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LONG $0xe5cc380f // SHA256MSG1 XMM4, XMM5
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// rounds 8-11
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MOVO 2*16(BX), X0
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PADDL X6, X0
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LONG $0xdacb380f // SHA256RNDS2 XMM3, XMM2
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PSHUFD $0x4e, X0, X0
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LONG $0xd3cb380f // SHA256RNDS2 XMM2, XMM3
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LONG $0xeecc380f // SHA256MSG1 XMM5, XMM6
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MOVO 3*16(BX), X0; ROUND674 // rounds 12-15
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MOVO 4*16(BX), X0; ROUND745 // rounds 16-19
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MOVO 5*16(BX), X0; ROUND456 // rounds 20-23
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MOVO 6*16(BX), X0; ROUND567 // rounds 24-27
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MOVO 7*16(BX), X0; ROUND674 // rounds 28-31
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MOVO 8*16(BX), X0; ROUND745 // rounds 32-35
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MOVO 9*16(BX), X0; ROUND456 // rounds 36-39
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MOVO 10*16(BX), X0; ROUND567 // rounds 40-43
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MOVO 11*16(BX), X0; ROUND674 // rounds 44-47
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MOVO 12*16(BX), X0; ROUND745 // rounds 48-51
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// rounds 52-55
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MOVO 13*16(BX), X0
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PADDL X5, X0
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LONG $0xdacb380f // SHA256RNDS2 XMM3, XMM2
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MOVO X5, X1
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LONG $0x0f3a0f66; WORD $0x04cc // PALIGNR XMM1, XMM4, 4
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PADDL X1, X6
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LONG $0xf5cd380f // SHA256MSG2 XMM6, XMM5
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PSHUFD $0x4e, X0, X0
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LONG $0xd3cb380f // SHA256RNDS2 XMM2, XMM3
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// rounds 56-59
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MOVO 14*16(BX), X0
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PADDL X6, X0
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LONG $0xdacb380f // SHA256RNDS2 XMM3, XMM2
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MOVO X6, X1
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LONG $0x0f3a0f66; WORD $0x04cd // PALIGNR XMM1, XMM5, 4
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PADDL X1, X7
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LONG $0xfecd380f // SHA256MSG2 XMM7, XMM6
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PSHUFD $0x4e, X0, X0
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LONG $0xd3cb380f // SHA256RNDS2 XMM2, XMM3
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// rounds 60-63
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MOVO 15*16(BX), X0
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PADDL X7, X0
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LONG $0xdacb380f // SHA256RNDS2 XMM3, XMM2
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PSHUFD $0x4e, X0, X0
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LONG $0xd3cb380f // SHA256RNDS2 XMM2, XMM3
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PADDL X12, X2
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PADDL X13, X3
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ADDQ $64, SI
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TEST:
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CMPQ SI, DI
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JBE LOOP
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PSHUFD $0x4e, X3, X0
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LONG $0x0e3a0f66; WORD $0xf0c2 // PBLENDW XMM0, XMM2, 0xf0
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PSHUFD $0x4e, X2, X1
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LONG $0x0e3a0f66; WORD $0x0fcb // PBLENDW XMM1, XMM3, 0x0f
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PSHUFD $0x1b, X0, X0
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PSHUFD $0x1b, X1, X1
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MOVOU X0, (DX)
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MOVOU X1, 16(DX)
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RET
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