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