projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * linux/arch/arm/lib/memcpy.S | |
| 3 | * | |
| 75494230 NP |
4 | * Author: Nicolas Pitre |
| 5 | * Created: Sep 28, 2005 | |
| 6 | * Copyright: MontaVista Software, Inc. | |
| 1da177e4 | 7 | * |
| 75494230 NP |
8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as | |
| 10 | * published by the Free Software Foundation. | |
| 1da177e4 | 11 | */ |
| 75494230 | 12 | |
| 1da177e4 LT |
13 | #include <linux/linkage.h> |
| 14 | #include <asm/assembler.h> | |
| 279f487e | 15 | #include <asm/unwind.h> |
| 4dd1837d | 16 | #include <asm/export.h> |
| 1da177e4 | 17 | |
| 8b592783 CM |
18 | #define LDR1W_SHIFT 0 |
| 19 | #define STR1W_SHIFT 0 | |
| 20 | ||
| 75494230 | 21 | .macro ldr1w ptr reg abort |
| 8b592783 | 22 | W(ldr) \reg, [\ptr], #4 |
| 75494230 | 23 | .endm |
| 1da177e4 | 24 | |
| 75494230 NP |
25 | .macro ldr4w ptr reg1 reg2 reg3 reg4 abort |
| 26 | ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4} | |
| 27 | .endm | |
| 1da177e4 | 28 | |
| 75494230 NP |
29 | .macro ldr8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort |
| 30 | ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8} | |
| 31 | .endm | |
| 1da177e4 | 32 | |
| 75494230 NP |
33 | .macro ldr1b ptr reg cond=al abort |
| 34 | ldr\cond\()b \reg, [\ptr], #1 | |
| 35 | .endm | |
| 1da177e4 | 36 | |
| 75494230 | 37 | .macro str1w ptr reg abort |
| 8b592783 | 38 | W(str) \reg, [\ptr], #4 |
| 75494230 | 39 | .endm |
| 1da177e4 | 40 | |
| 75494230 NP |
41 | .macro str8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort |
| 42 | stmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8} | |
| 43 | .endm | |
| 1da177e4 | 44 | |
| 75494230 NP |
45 | .macro str1b ptr reg cond=al abort |
| 46 | str\cond\()b \reg, [\ptr], #1 | |
| 47 | .endm | |
| 1da177e4 | 48 | |
| 75494230 NP |
49 | .macro enter reg1 reg2 |
| 50 | stmdb sp!, {r0, \reg1, \reg2} | |
| 51 | .endm | |
| 1da177e4 | 52 | |
| 279f487e LY |
53 | .macro usave reg1 reg2 |
| 54 | UNWIND( .save {r0, \reg1, \reg2} ) | |
| 55 | .endm | |
| 56 | ||
| 75494230 NP |
57 | .macro exit reg1 reg2 |
| 58 | ldmfd sp!, {r0, \reg1, \reg2} | |
| 59 | .endm | |
| 1da177e4 | 60 | |
| 75494230 | 61 | .text |
| 1da177e4 | 62 | |
| 75494230 | 63 | /* Prototype: void *memcpy(void *dest, const void *src, size_t n); */ |
| 1da177e4 | 64 | |
| 1bd46782 | 65 | ENTRY(mmiocpy) |
| 75494230 | 66 | ENTRY(memcpy) |
| 1da177e4 | 67 | |
| 75494230 | 68 | #include "copy_template.S" |
| 1da177e4 | 69 | |
| 93ed3970 | 70 | ENDPROC(memcpy) |
| 1bd46782 | 71 | ENDPROC(mmiocpy) |
| 4dd1837d AV |
72 | EXPORT_SYMBOL(memcpy) |
| 73 | EXPORT_SYMBOL(mmiocpy) |