2 * sha2-ce-core.S - SHA-224/256 secure hash using ARMv8 Crypto Extensions
4 * Copyright (C) 2015 Linaro Ltd.
5 * Author: Ard Biesheuvel <ard.biesheuvel@linaro.org>
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.
12 #include <linux/linkage.h>
13 #include <asm/assembler.h>
16 .fpu crypto-neon-fp-armv8
34 .macro add_only, ev, s0
37 vld1.32 {k\ev}, [rk, :128]!
39 sha256h.32 dg0, dg1, tb\ev
40 sha256h2.32 dg1, dg2, tb\ev
42 vadd.u32 ta\ev, q\s0, k\ev
46 .macro add_update, ev, s0, s1, s2, s3
47 sha256su0.32 q\s0, q\s1
49 sha256su1.32 q\s0, q\s2, q\s3
54 .word 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5
55 .word 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5
56 .word 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3
57 .word 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174
58 .word 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc
59 .word 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da
60 .word 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7
61 .word 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967
62 .word 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13
63 .word 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85
64 .word 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3
65 .word 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070
66 .word 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5
67 .word 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3
68 .word 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208
69 .word 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
72 * void sha2_ce_transform(struct sha256_state *sst, u8 const *src,
75 ENTRY(sha2_ce_transform)
77 vld1.32 {dga-dgb}, [r0]
80 0: vld1.32 {q0-q1}, [r1]!
81 vld1.32 {q2-q3}, [r1]!
84 #ifndef CONFIG_CPU_BIG_ENDIAN
91 /* load first round constant */
93 vld1.32 {k0}, [rk, :128]!
99 add_update 1, 0, 1, 2, 3
100 add_update 0, 1, 2, 3, 0
101 add_update 1, 2, 3, 0, 1
102 add_update 0, 3, 0, 1, 2
103 add_update 1, 0, 1, 2, 3
104 add_update 0, 1, 2, 3, 0
105 add_update 1, 2, 3, 0, 1
106 add_update 0, 3, 0, 1, 2
107 add_update 1, 0, 1, 2, 3
108 add_update 0, 1, 2, 3, 0
109 add_update 1, 2, 3, 0, 1
110 add_update 0, 3, 0, 1, 2
118 vadd.u32 dga, dga, dg0
119 vadd.u32 dgb, dgb, dg1
122 /* store new state */
123 vst1.32 {dga-dgb}, [r0]
125 ENDPROC(sha2_ce_transform)