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d2912cb1 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
1da177e4 LT |
2 | /* |
3 | * linux/arch/arm/lib/memcpy.S | |
4 | * | |
75494230 NP |
5 | * Author: Nicolas Pitre |
6 | * Created: Sep 28, 2005 | |
7 | * Copyright: MontaVista Software, Inc. | |
1da177e4 | 8 | */ |
75494230 | 9 | |
1da177e4 LT |
10 | #include <linux/linkage.h> |
11 | #include <asm/assembler.h> | |
279f487e | 12 | #include <asm/unwind.h> |
1da177e4 | 13 | |
8b592783 CM |
14 | #define LDR1W_SHIFT 0 |
15 | #define STR1W_SHIFT 0 | |
16 | ||
75494230 | 17 | .macro ldr1w ptr reg abort |
8b592783 | 18 | W(ldr) \reg, [\ptr], #4 |
75494230 | 19 | .endm |
1da177e4 | 20 | |
75494230 NP |
21 | .macro ldr4w ptr reg1 reg2 reg3 reg4 abort |
22 | ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4} | |
23 | .endm | |
1da177e4 | 24 | |
75494230 NP |
25 | .macro ldr8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort |
26 | ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8} | |
27 | .endm | |
1da177e4 | 28 | |
75494230 | 29 | .macro ldr1b ptr reg cond=al abort |
a216376a | 30 | ldrb\cond \reg, [\ptr], #1 |
75494230 | 31 | .endm |
1da177e4 | 32 | |
75494230 | 33 | .macro str1w ptr reg abort |
8b592783 | 34 | W(str) \reg, [\ptr], #4 |
75494230 | 35 | .endm |
1da177e4 | 36 | |
75494230 NP |
37 | .macro str8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort |
38 | stmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8} | |
39 | .endm | |
1da177e4 | 40 | |
75494230 | 41 | .macro str1b ptr reg cond=al abort |
a216376a | 42 | strb\cond \reg, [\ptr], #1 |
75494230 | 43 | .endm |
1da177e4 | 44 | |
75494230 NP |
45 | .macro enter reg1 reg2 |
46 | stmdb sp!, {r0, \reg1, \reg2} | |
47 | .endm | |
1da177e4 | 48 | |
279f487e LY |
49 | .macro usave reg1 reg2 |
50 | UNWIND( .save {r0, \reg1, \reg2} ) | |
51 | .endm | |
52 | ||
75494230 NP |
53 | .macro exit reg1 reg2 |
54 | ldmfd sp!, {r0, \reg1, \reg2} | |
55 | .endm | |
1da177e4 | 56 | |
75494230 | 57 | .text |
1da177e4 | 58 | |
75494230 | 59 | /* Prototype: void *memcpy(void *dest, const void *src, size_t n); */ |
1da177e4 | 60 | |
1bd46782 | 61 | ENTRY(mmiocpy) |
75494230 | 62 | ENTRY(memcpy) |
1da177e4 | 63 | |
75494230 | 64 | #include "copy_template.S" |
1da177e4 | 65 | |
93ed3970 | 66 | ENDPROC(memcpy) |
1bd46782 | 67 | ENDPROC(mmiocpy) |