1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #include <linux/linkage.h> |
3 | #include <asm/assembler.h> |
4 | |
5 | #if __LINUX_ARM_ARCH__ >= 6 |
6 | ENTRY(__bswapsi2) |
7 | rev r0, r0 |
8 | bx lr |
9 | ENDPROC(__bswapsi2) |
10 | |
11 | ENTRY(__bswapdi2) |
12 | rev r3, r0 |
13 | rev r0, r1 |
14 | mov r1, r3 |
15 | bx lr |
16 | ENDPROC(__bswapdi2) |
17 | #else |
18 | ENTRY(__bswapsi2) |
19 | eor r3, r0, r0, ror #16 |
20 | mov r3, r3, lsr #8 |
21 | bic r3, r3, #0xff00 |
22 | eor r0, r3, r0, ror #8 |
23 | ret lr |
24 | ENDPROC(__bswapsi2) |
25 | |
26 | ENTRY(__bswapdi2) |
27 | mov ip, r1 |
28 | eor r3, ip, ip, ror #16 |
29 | eor r1, r0, r0, ror #16 |
30 | mov r1, r1, lsr #8 |
31 | mov r3, r3, lsr #8 |
32 | bic r3, r3, #0xff00 |
33 | bic r1, r1, #0xff00 |
34 | eor r1, r1, r0, ror #8 |
35 | eor r0, r3, ip, ror #8 |
36 | ret lr |
37 | ENDPROC(__bswapdi2) |
38 | #endif |
39 | |