1*4882a593Smuzhiyun/* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun/* 3*4882a593Smuzhiyun * Copyright (C) 2013 ARM Ltd. 4*4882a593Smuzhiyun * Copyright (C) 2013 Linaro. 5*4882a593Smuzhiyun * 6*4882a593Smuzhiyun * This code is based on glibc cortex strings work originally authored by Linaro 7*4882a593Smuzhiyun * be found @ 8*4882a593Smuzhiyun * 9*4882a593Smuzhiyun * http://bazaar.launchpad.net/~linaro-toolchain-dev/cortex-strings/trunk/ 10*4882a593Smuzhiyun * files/head:/src/aarch64/ 11*4882a593Smuzhiyun */ 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun#include <linux/linkage.h> 14*4882a593Smuzhiyun#include <asm/assembler.h> 15*4882a593Smuzhiyun#include <asm/cache.h> 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun/* 18*4882a593Smuzhiyun * Copy a buffer from src to dest (alignment handled by the hardware) 19*4882a593Smuzhiyun * 20*4882a593Smuzhiyun * Parameters: 21*4882a593Smuzhiyun * x0 - dest 22*4882a593Smuzhiyun * x1 - src 23*4882a593Smuzhiyun * x2 - n 24*4882a593Smuzhiyun * Returns: 25*4882a593Smuzhiyun * x0 - dest 26*4882a593Smuzhiyun */ 27*4882a593Smuzhiyun .macro ldrb1 reg, ptr, val 28*4882a593Smuzhiyun ldrb \reg, [\ptr], \val 29*4882a593Smuzhiyun .endm 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun .macro strb1 reg, ptr, val 32*4882a593Smuzhiyun strb \reg, [\ptr], \val 33*4882a593Smuzhiyun .endm 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun .macro ldrh1 reg, ptr, val 36*4882a593Smuzhiyun ldrh \reg, [\ptr], \val 37*4882a593Smuzhiyun .endm 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun .macro strh1 reg, ptr, val 40*4882a593Smuzhiyun strh \reg, [\ptr], \val 41*4882a593Smuzhiyun .endm 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun .macro ldr1 reg, ptr, val 44*4882a593Smuzhiyun ldr \reg, [\ptr], \val 45*4882a593Smuzhiyun .endm 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun .macro str1 reg, ptr, val 48*4882a593Smuzhiyun str \reg, [\ptr], \val 49*4882a593Smuzhiyun .endm 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun .macro ldp1 reg1, reg2, ptr, val 52*4882a593Smuzhiyun ldp \reg1, \reg2, [\ptr], \val 53*4882a593Smuzhiyun .endm 54*4882a593Smuzhiyun 55*4882a593Smuzhiyun .macro stp1 reg1, reg2, ptr, val 56*4882a593Smuzhiyun stp \reg1, \reg2, [\ptr], \val 57*4882a593Smuzhiyun .endm 58*4882a593Smuzhiyun 59*4882a593SmuzhiyunSYM_FUNC_START_ALIAS(__memcpy) 60*4882a593SmuzhiyunSYM_FUNC_START_WEAK_PI(memcpy) 61*4882a593Smuzhiyun#include "copy_template.S" 62*4882a593Smuzhiyun ret 63*4882a593SmuzhiyunSYM_FUNC_END_PI(memcpy) 64*4882a593SmuzhiyunEXPORT_SYMBOL(memcpy) 65*4882a593SmuzhiyunSYM_FUNC_END_ALIAS(__memcpy) 66*4882a593SmuzhiyunEXPORT_SYMBOL(__memcpy) 67