2 * sm3-ce-core.S - SM3 secure hash using ARMv8.2 Crypto Extensions
4 * Copyright (C) 2018 Linaro Ltd <ard.biesheuvel@linaro.org>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
11 #include <linux/linkage.h>
12 #include <asm/assembler.h>
14 .irp b, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
18 .macro sm3partw1, rd, rn, rm
19 .inst 0xce60c000 | .L\rd | (.L\rn << 5) | (.L\rm << 16)
22 .macro sm3partw2, rd, rn, rm
23 .inst 0xce60c400 | .L\rd | (.L\rn << 5) | (.L\rm << 16)
26 .macro sm3ss1, rd, rn, rm, ra
27 .inst 0xce400000 | .L\rd | (.L\rn << 5) | (.L\ra << 10) | (.L\rm << 16)
30 .macro sm3tt1a, rd, rn, rm, imm2
31 .inst 0xce408000 | .L\rd | (.L\rn << 5) | ((\imm2) << 12) | (.L\rm << 16)
34 .macro sm3tt1b, rd, rn, rm, imm2
35 .inst 0xce408400 | .L\rd | (.L\rn << 5) | ((\imm2) << 12) | (.L\rm << 16)
38 .macro sm3tt2a, rd, rn, rm, imm2
39 .inst 0xce408800 | .L\rd | (.L\rn << 5) | ((\imm2) << 12) | (.L\rm << 16)
42 .macro sm3tt2b, rd, rn, rm, imm2
43 .inst 0xce408c00 | .L\rd | (.L\rn << 5) | ((\imm2) << 12) | (.L\rm << 16)
46 .macro round, ab, s0, t0, t1, i
47 sm3ss1 v5.4s, v8.4s, \t0\().4s, v9.4s
48 shl \t1\().4s, \t0\().4s, #1
49 sri \t1\().4s, \t0\().4s, #31
50 sm3tt1\ab v8.4s, v5.4s, v10.4s, \i
51 sm3tt2\ab v9.4s, v5.4s, \s0\().4s, \i
54 .macro qround, ab, s0, s1, s2, s3, s4
56 ext \s4\().16b, \s1\().16b, \s2\().16b, #12
57 ext v6.16b, \s0\().16b, \s1\().16b, #12
58 ext v7.16b, \s2\().16b, \s3\().16b, #8
59 sm3partw1 \s4\().4s, \s0\().4s, \s3\().4s
62 eor v10.16b, \s0\().16b, \s1\().16b
64 round \ab, \s0, v11, v12, 0
65 round \ab, \s0, v12, v11, 1
66 round \ab, \s0, v11, v12, 2
67 round \ab, \s0, v12, v11, 3
70 sm3partw2 \s4\().4s, v7.4s, v6.4s
75 * void sm3_ce_transform(struct sm3_state *sst, u8 const *src,
79 ENTRY(sm3_ce_transform)
81 ld1 {v8.4s-v9.4s}, [x0]
84 ext v8.16b, v8.16b, v8.16b, #8
85 ext v9.16b, v9.16b, v9.16b, #8
91 0: ld1 {v0.16b-v3.16b}, [x1], #64
97 CPU_LE( rev32 v0.16b, v0.16b )
98 CPU_LE( rev32 v1.16b, v1.16b )
99 CPU_LE( rev32 v2.16b, v2.16b )
100 CPU_LE( rev32 v3.16b, v3.16b )
102 ext v11.16b, v13.16b, v13.16b, #4
104 qround a, v0, v1, v2, v3, v4
105 qround a, v1, v2, v3, v4, v0
106 qround a, v2, v3, v4, v0, v1
107 qround a, v3, v4, v0, v1, v2
109 ext v11.16b, v14.16b, v14.16b, #4
111 qround b, v4, v0, v1, v2, v3
112 qround b, v0, v1, v2, v3, v4
113 qround b, v1, v2, v3, v4, v0
114 qround b, v2, v3, v4, v0, v1
115 qround b, v3, v4, v0, v1, v2
116 qround b, v4, v0, v1, v2, v3
117 qround b, v0, v1, v2, v3, v4
118 qround b, v1, v2, v3, v4, v0
119 qround b, v2, v3, v4, v0, v1
124 eor v8.16b, v8.16b, v15.16b
125 eor v9.16b, v9.16b, v16.16b
127 /* handled all input blocks? */
133 ext v8.16b, v8.16b, v8.16b, #8
134 ext v9.16b, v9.16b, v9.16b, #8
135 st1 {v8.4s-v9.4s}, [x0]
137 ENDPROC(sm3_ce_transform)
139 .section ".rodata", "a"
141 .Lt: .word 0x79cc4519, 0x9d8a7a87