| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * Copyright (C) 2013 ARM Ltd. |
| * Copyright (C) 2013 Linaro. |
| * |
| * This code is based on glibc cortex strings work originally authored by Linaro |
| * be found @ |
| * |
| * http://bazaar.launchpad.net/~linaro-toolchain-dev/cortex-strings/trunk/ |
| * files/head:/src/aarch64/ |
| */ |
| |
| #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 reg, ptr, val |
| ldrb \reg, [\ptr], \val |
| .endm |
| |
| .macro strb1 reg, ptr, val |
| strb \reg, [\ptr], \val |
| .endm |
| |
| .macro ldrh1 reg, ptr, val |
| ldrh \reg, [\ptr], \val |
| .endm |
| |
| .macro strh1 reg, ptr, val |
| strh \reg, [\ptr], \val |
| .endm |
| |
| .macro ldr1 reg, ptr, val |
| ldr \reg, [\ptr], \val |
| .endm |
| |
| .macro str1 reg, ptr, val |
| str \reg, [\ptr], \val |
| .endm |
| |
| .macro ldp1 reg1, reg2, ptr, val |
| ldp \reg1, \reg2, [\ptr], \val |
| .endm |
| |
| .macro stp1 reg1, reg2, ptr, val |
| stp \reg1, \reg2, [\ptr], \val |
| .endm |
| |
| .weak memcpy |
| SYM_FUNC_START_ALIAS(__memcpy) |
| SYM_FUNC_START_PI(memcpy) |
| #include "copy_template.S" |
| ret |
| SYM_FUNC_END_PI(memcpy) |
| EXPORT_SYMBOL(memcpy) |
| SYM_FUNC_END_ALIAS(__memcpy) |
| EXPORT_SYMBOL(__memcpy) |
