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| /* SPDX-License-Identifier: GPL-2.0-only */
| /*
| * linux/arch/arm/lib/memcpy.S
| *
| * Author: Nicolas Pitre
| * Created: Sep 28, 2005
| * Copyright: MontaVista Software, Inc.
| */
|
| #include <linux/linkage.h>
| #include <asm/assembler.h>
| #include <asm/unwind.h>
|
| #define LDR1W_SHIFT 0
| #define STR1W_SHIFT 0
|
| .macro ldr1w ptr reg abort
| W(ldr) \reg, [\ptr], #4
| .endm
|
| .macro ldr4w ptr reg1 reg2 reg3 reg4 abort
| ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4}
| .endm
|
| .macro ldr8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort
| ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8}
| .endm
|
| .macro ldr1b ptr reg cond=al abort
| ldrb\cond \reg, [\ptr], #1
| .endm
|
| .macro str1w ptr reg abort
| W(str) \reg, [\ptr], #4
| .endm
|
| .macro str8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort
| stmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8}
| .endm
|
| .macro str1b ptr reg cond=al abort
| strb\cond \reg, [\ptr], #1
| .endm
|
| .macro enter reg1 reg2
| stmdb sp!, {r0, \reg1, \reg2}
| .endm
|
| .macro usave reg1 reg2
| UNWIND( .save {r0, \reg1, \reg2} )
| .endm
|
| .macro exit reg1 reg2
| ldmfd sp!, {r0, \reg1, \reg2}
| .endm
|
| .text
|
| /* Prototype: void *memcpy(void *dest, const void *src, size_t n); */
|
| ENTRY(mmiocpy)
| ENTRY(memcpy)
|
| #include "copy_template.S"
|
| ENDPROC(memcpy)
| ENDPROC(mmiocpy)
|
|
