/* * Copyright (C) 2013 ARM Ltd. * Copyright (C) 2013 Linaro. * * This code is based on glibc cortex strings work originally authored by Linaro * and re-licensed under GPLv2 for the Linux kernel. The original code can * be found @ * * http://bazaar.launchpad.net/~linaro-toolchain-dev/cortex-strings/trunk/ * files/head:/src/aarch64/ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include <linux/linkage.h> #include <asm/assembler.h> #include <asm/cache.h> /* * Copy a buffer from src to dest (alignment handled by the hardware) * * Parameters: * x0 - dest * x1 - src * x2 - n * Returns: * x0 - dest */ .macro ldrb1 ptr, regB, val ldrb \ptr, [\regB], \val .endm .macro strb1 ptr, regB, val strb \ptr, [\regB], \val .endm .macro ldrh1 ptr, regB, val ldrh \ptr, [\regB], \val .endm .macro strh1 ptr, regB, val strh \ptr, [\regB], \val .endm .macro ldr1 ptr, regB, val ldr \ptr, [\regB], \val .endm .macro str1 ptr, regB, val str \ptr, [\regB], \val .endm .macro ldp1 ptr, regB, regC, val ldp \ptr, \regB, [\regC], \val .endm .macro stp1 ptr, regB, regC, val stp \ptr, \regB, [\regC], \val .endm .weak memcpy ENTRY(__memcpy) ENTRY(memcpy) #include "copy_template.S" ret ENDPIPROC(memcpy) ENDPROC(__memcpy)