1*4882a593Smuzhiyun/* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun/* 3*4882a593Smuzhiyun * linux/arch/arm/lib/memcpy.S 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Author: Nicolas Pitre 6*4882a593Smuzhiyun * Created: Sep 28, 2005 7*4882a593Smuzhiyun * Copyright: MontaVista Software, Inc. 8*4882a593Smuzhiyun */ 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun#include <linux/linkage.h> 11*4882a593Smuzhiyun#include <asm/assembler.h> 12*4882a593Smuzhiyun#include <asm/unwind.h> 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun#define LDR1W_SHIFT 0 15*4882a593Smuzhiyun#define STR1W_SHIFT 0 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun .macro ldr1w ptr reg abort 18*4882a593Smuzhiyun W(ldr) \reg, [\ptr], #4 19*4882a593Smuzhiyun .endm 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun .macro ldr4w ptr reg1 reg2 reg3 reg4 abort 22*4882a593Smuzhiyun ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4} 23*4882a593Smuzhiyun .endm 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun .macro ldr8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort 26*4882a593Smuzhiyun ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8} 27*4882a593Smuzhiyun .endm 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun .macro ldr1b ptr reg cond=al abort 30*4882a593Smuzhiyun ldrb\cond \reg, [\ptr], #1 31*4882a593Smuzhiyun .endm 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun .macro str1w ptr reg abort 34*4882a593Smuzhiyun W(str) \reg, [\ptr], #4 35*4882a593Smuzhiyun .endm 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun .macro str8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort 38*4882a593Smuzhiyun stmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8} 39*4882a593Smuzhiyun .endm 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun .macro str1b ptr reg cond=al abort 42*4882a593Smuzhiyun strb\cond \reg, [\ptr], #1 43*4882a593Smuzhiyun .endm 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun .macro enter reg1 reg2 46*4882a593Smuzhiyun stmdb sp!, {r0, \reg1, \reg2} 47*4882a593Smuzhiyun .endm 48*4882a593Smuzhiyun 49*4882a593Smuzhiyun .macro usave reg1 reg2 50*4882a593Smuzhiyun UNWIND( .save {r0, \reg1, \reg2} ) 51*4882a593Smuzhiyun .endm 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun .macro exit reg1 reg2 54*4882a593Smuzhiyun ldmfd sp!, {r0, \reg1, \reg2} 55*4882a593Smuzhiyun .endm 56*4882a593Smuzhiyun 57*4882a593Smuzhiyun .text 58*4882a593Smuzhiyun 59*4882a593Smuzhiyun/* Prototype: void *memcpy(void *dest, const void *src, size_t n); */ 60*4882a593Smuzhiyun 61*4882a593SmuzhiyunENTRY(mmiocpy) 62*4882a593SmuzhiyunENTRY(memcpy) 63*4882a593Smuzhiyun 64*4882a593Smuzhiyun#include "copy_template.S" 65*4882a593Smuzhiyun 66*4882a593SmuzhiyunENDPROC(memcpy) 67*4882a593SmuzhiyunENDPROC(mmiocpy) 68