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50 lines
979 B
50 lines
979 B
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* linux/arch/arm/lib/csumpartialcopy.S |
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* |
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* Copyright (C) 1995-1998 Russell King |
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*/ |
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#include <linux/linkage.h> |
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#include <asm/assembler.h> |
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.text |
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/* Function: __u32 csum_partial_copy_nocheck(const char *src, char *dst, int len) |
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* Params : r0 = src, r1 = dst, r2 = len |
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* Returns : r0 = new checksum |
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*/ |
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.macro save_regs |
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stmfd sp!, {r1, r4 - r8, lr} |
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.endm |
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.macro load_regs |
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ldmfd sp!, {r1, r4 - r8, pc} |
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.endm |
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.macro load1b, reg1 |
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ldrb \reg1, [r0], #1 |
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.endm |
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.macro load2b, reg1, reg2 |
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ldrb \reg1, [r0], #1 |
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ldrb \reg2, [r0], #1 |
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.endm |
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.macro load1l, reg1 |
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ldr \reg1, [r0], #4 |
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.endm |
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.macro load2l, reg1, reg2 |
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ldr \reg1, [r0], #4 |
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ldr \reg2, [r0], #4 |
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.endm |
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.macro load4l, reg1, reg2, reg3, reg4 |
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ldmia r0!, {\reg1, \reg2, \reg3, \reg4} |
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.endm |
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#define FN_ENTRY ENTRY(csum_partial_copy_nocheck) |
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#define FN_EXIT ENDPROC(csum_partial_copy_nocheck) |
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#include "csumpartialcopygeneric.S"
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