tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2
3#include <linux/linkage.h>
4#include <asm/assembler.h>
5
6 .irp b, 0, 1, 2, 3, 4, 5, 6, 7, 8
7 .set .Lv\b\().4s, \b
8 .endr
9
10 .macro sm4e, rd, rn
11 .inst 0xcec08400 | .L\rd | (.L\rn << 5)
12 .endm
13
14 /*
15 * void sm4_ce_do_crypt(const u32 *rk, u32 *out, const u32 *in);
16 */
17 .text
18SYM_FUNC_START(sm4_ce_do_crypt)
19 ld1 {v8.4s}, [x2]
20 ld1 {v0.4s-v3.4s}, [x0], #64
21CPU_LE( rev32 v8.16b, v8.16b )
22 ld1 {v4.4s-v7.4s}, [x0]
23 sm4e v8.4s, v0.4s
24 sm4e v8.4s, v1.4s
25 sm4e v8.4s, v2.4s
26 sm4e v8.4s, v3.4s
27 sm4e v8.4s, v4.4s
28 sm4e v8.4s, v5.4s
29 sm4e v8.4s, v6.4s
30 sm4e v8.4s, v7.4s
31 rev64 v8.4s, v8.4s
32 ext v8.16b, v8.16b, v8.16b, #8
33CPU_LE( rev32 v8.16b, v8.16b )
34 st1 {v8.4s}, [x1]
35 ret
36SYM_FUNC_END(sm4_ce_do_crypt)