162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-only */ 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * linux/arch/arm/lib/csumpartialcopy.S 462306a36Sopenharmony_ci * 562306a36Sopenharmony_ci * Copyright (C) 1995-1998 Russell King 662306a36Sopenharmony_ci */ 762306a36Sopenharmony_ci#include <linux/linkage.h> 862306a36Sopenharmony_ci#include <asm/assembler.h> 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ci .text 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_ci/* Function: __u32 csum_partial_copy_nocheck(const char *src, char *dst, int len) 1362306a36Sopenharmony_ci * Params : r0 = src, r1 = dst, r2 = len 1462306a36Sopenharmony_ci * Returns : r0 = new checksum 1562306a36Sopenharmony_ci */ 1662306a36Sopenharmony_ci 1762306a36Sopenharmony_ci .macro save_regs 1862306a36Sopenharmony_ci stmfd sp!, {r1, r4 - r8, lr} 1962306a36Sopenharmony_ci .endm 2062306a36Sopenharmony_ci 2162306a36Sopenharmony_ci .macro load_regs 2262306a36Sopenharmony_ci ldmfd sp!, {r1, r4 - r8, pc} 2362306a36Sopenharmony_ci .endm 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_ci .macro load1b, reg1 2662306a36Sopenharmony_ci ldrb \reg1, [r0], #1 2762306a36Sopenharmony_ci .endm 2862306a36Sopenharmony_ci 2962306a36Sopenharmony_ci .macro load2b, reg1, reg2 3062306a36Sopenharmony_ci ldrb \reg1, [r0], #1 3162306a36Sopenharmony_ci ldrb \reg2, [r0], #1 3262306a36Sopenharmony_ci .endm 3362306a36Sopenharmony_ci 3462306a36Sopenharmony_ci .macro load1l, reg1 3562306a36Sopenharmony_ci ldr \reg1, [r0], #4 3662306a36Sopenharmony_ci .endm 3762306a36Sopenharmony_ci 3862306a36Sopenharmony_ci .macro load2l, reg1, reg2 3962306a36Sopenharmony_ci ldr \reg1, [r0], #4 4062306a36Sopenharmony_ci ldr \reg2, [r0], #4 4162306a36Sopenharmony_ci .endm 4262306a36Sopenharmony_ci 4362306a36Sopenharmony_ci .macro load4l, reg1, reg2, reg3, reg4 4462306a36Sopenharmony_ci ldmia r0!, {\reg1, \reg2, \reg3, \reg4} 4562306a36Sopenharmony_ci .endm 4662306a36Sopenharmony_ci 4762306a36Sopenharmony_ci#define FN_ENTRY ENTRY(csum_partial_copy_nocheck) 4862306a36Sopenharmony_ci#define FN_EXIT ENDPROC(csum_partial_copy_nocheck) 4962306a36Sopenharmony_ci 5062306a36Sopenharmony_ci#include "csumpartialcopygeneric.S" 51