1/* 2 * linux/arch/arm/lib/csumpartialcopy.S 3 * 4 * Copyright (C) 1995-1998 Russell King 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 */ 10#include <linux/linkage.h> 11#include <asm/assembler.h> 12 13 .text 14 15/* Function: __u32 csum_partial_copy_nocheck(const char *src, char *dst, int len, __u32 sum) 16 * Params : r0 = src, r1 = dst, r2 = len, r3 = checksum 17 * Returns : r0 = new checksum 18 */ 19 20 .macro save_regs 21 stmfd sp!, {r1, r4 - r8, lr} 22 .endm 23 24 .macro load_regs 25 ldmfd sp!, {r1, r4 - r8, pc} 26 .endm 27 28 .macro load1b, reg1 29 ldrb \reg1, [r0], #1 30 .endm 31 32 .macro load2b, reg1, reg2 33 ldrb \reg1, [r0], #1 34 ldrb \reg2, [r0], #1 35 .endm 36 37 .macro load1l, reg1 38 ldr \reg1, [r0], #4 39 .endm 40 41 .macro load2l, reg1, reg2 42 ldr \reg1, [r0], #4 43 ldr \reg2, [r0], #4 44 .endm 45 46 .macro load4l, reg1, reg2, reg3, reg4 47 ldmia r0!, {\reg1, \reg2, \reg3, \reg4} 48 .endm 49 50#define FN_ENTRY ENTRY(csum_partial_copy_nocheck) 51#define FN_EXIT ENDPROC(csum_partial_copy_nocheck) 52 53#include "csumpartialcopygeneric.S" 54