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66 lines
1.2 KiB
66 lines
1.2 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Copyright (C) 2013 ARM Ltd. |
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* Copyright (C) 2013 Linaro. |
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* |
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* This code is based on glibc cortex strings work originally authored by Linaro |
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* be found @ |
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* |
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* http://bazaar.launchpad.net/~linaro-toolchain-dev/cortex-strings/trunk/ |
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* files/head:/src/aarch64/ |
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*/ |
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#include <linux/linkage.h> |
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#include <asm/assembler.h> |
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#include <asm/cache.h> |
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/* |
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* Copy a buffer from src to dest (alignment handled by the hardware) |
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* |
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* Parameters: |
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* x0 - dest |
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* x1 - src |
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* x2 - n |
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* Returns: |
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* x0 - dest |
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*/ |
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.macro ldrb1 reg, ptr, val |
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ldrb \reg, [\ptr], \val |
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.endm |
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.macro strb1 reg, ptr, val |
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strb \reg, [\ptr], \val |
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.endm |
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.macro ldrh1 reg, ptr, val |
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ldrh \reg, [\ptr], \val |
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.endm |
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.macro strh1 reg, ptr, val |
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strh \reg, [\ptr], \val |
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.endm |
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.macro ldr1 reg, ptr, val |
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ldr \reg, [\ptr], \val |
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.endm |
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.macro str1 reg, ptr, val |
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str \reg, [\ptr], \val |
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.endm |
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.macro ldp1 reg1, reg2, ptr, val |
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ldp \reg1, \reg2, [\ptr], \val |
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.endm |
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.macro stp1 reg1, reg2, ptr, val |
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stp \reg1, \reg2, [\ptr], \val |
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.endm |
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SYM_FUNC_START_ALIAS(__memcpy) |
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SYM_FUNC_START_WEAK_PI(memcpy) |
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#include "copy_template.S" |
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ret |
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SYM_FUNC_END_PI(memcpy) |
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EXPORT_SYMBOL(memcpy) |
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SYM_FUNC_END_ALIAS(__memcpy) |
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EXPORT_SYMBOL(__memcpy)
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