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d2912cb15b
Based on 2 normalized pattern(s): 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 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 # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
37 lines
687 B
ArmAsm
37 lines
687 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* linux/arch/unicore32/lib/copy_page.S
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*
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* Code specific to PKUnity SoC and UniCore ISA
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*
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* Copyright (C) 2001-2010 GUAN Xue-tao
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*
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* ASM optimised string functions
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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 <generated/asm-offsets.h>
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#include <asm/cache.h>
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#define COPY_COUNT (PAGE_SZ/256)
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.text
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.align 5
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/*
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* UniCore optimised copy_page routine
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*/
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ENTRY(copy_page)
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stm.w (r17 - r19, lr), [sp-]
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mov r17, r0
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mov r18, r1
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mov r19, #COPY_COUNT
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1:
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.rept 4
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ldm.w (r0 - r15), [r18]+
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stm.w (r0 - r15), [r17]+
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.endr
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sub.a r19, r19, #1
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bne 1b
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ldm.w (r17 - r19, pc), [sp]+
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ENDPROC(copy_page)
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