18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-only */ 28c2ecf20Sopenharmony_ci/* 38c2ecf20Sopenharmony_ci * linux/arch/arm/lib/memcpy.S 48c2ecf20Sopenharmony_ci * 58c2ecf20Sopenharmony_ci * Author: Nicolas Pitre 68c2ecf20Sopenharmony_ci * Created: Sep 28, 2005 78c2ecf20Sopenharmony_ci * Copyright: MontaVista Software, Inc. 88c2ecf20Sopenharmony_ci */ 98c2ecf20Sopenharmony_ci 108c2ecf20Sopenharmony_ci#include <linux/linkage.h> 118c2ecf20Sopenharmony_ci#include <asm/assembler.h> 128c2ecf20Sopenharmony_ci#include <asm/unwind.h> 138c2ecf20Sopenharmony_ci 148c2ecf20Sopenharmony_ci#define LDR1W_SHIFT 0 158c2ecf20Sopenharmony_ci#define STR1W_SHIFT 0 168c2ecf20Sopenharmony_ci 178c2ecf20Sopenharmony_ci .macro ldr1w ptr reg abort 188c2ecf20Sopenharmony_ci W(ldr) \reg, [\ptr], #4 198c2ecf20Sopenharmony_ci .endm 208c2ecf20Sopenharmony_ci 218c2ecf20Sopenharmony_ci .macro ldr4w ptr reg1 reg2 reg3 reg4 abort 228c2ecf20Sopenharmony_ci ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4} 238c2ecf20Sopenharmony_ci .endm 248c2ecf20Sopenharmony_ci 258c2ecf20Sopenharmony_ci .macro ldr8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort 268c2ecf20Sopenharmony_ci ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8} 278c2ecf20Sopenharmony_ci .endm 288c2ecf20Sopenharmony_ci 298c2ecf20Sopenharmony_ci .macro ldr1b ptr reg cond=al abort 308c2ecf20Sopenharmony_ci ldrb\cond \reg, [\ptr], #1 318c2ecf20Sopenharmony_ci .endm 328c2ecf20Sopenharmony_ci 338c2ecf20Sopenharmony_ci .macro str1w ptr reg abort 348c2ecf20Sopenharmony_ci W(str) \reg, [\ptr], #4 358c2ecf20Sopenharmony_ci .endm 368c2ecf20Sopenharmony_ci 378c2ecf20Sopenharmony_ci .macro str8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort 388c2ecf20Sopenharmony_ci stmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8} 398c2ecf20Sopenharmony_ci .endm 408c2ecf20Sopenharmony_ci 418c2ecf20Sopenharmony_ci .macro str1b ptr reg cond=al abort 428c2ecf20Sopenharmony_ci strb\cond \reg, [\ptr], #1 438c2ecf20Sopenharmony_ci .endm 448c2ecf20Sopenharmony_ci 458c2ecf20Sopenharmony_ci .macro enter reg1 reg2 468c2ecf20Sopenharmony_ci stmdb sp!, {r0, \reg1, \reg2} 478c2ecf20Sopenharmony_ci .endm 488c2ecf20Sopenharmony_ci 498c2ecf20Sopenharmony_ci .macro usave reg1 reg2 508c2ecf20Sopenharmony_ci UNWIND( .save {r0, \reg1, \reg2} ) 518c2ecf20Sopenharmony_ci .endm 528c2ecf20Sopenharmony_ci 538c2ecf20Sopenharmony_ci .macro exit reg1 reg2 548c2ecf20Sopenharmony_ci ldmfd sp!, {r0, \reg1, \reg2} 558c2ecf20Sopenharmony_ci .endm 568c2ecf20Sopenharmony_ci 578c2ecf20Sopenharmony_ci .text 588c2ecf20Sopenharmony_ci 598c2ecf20Sopenharmony_ci/* Prototype: void *memcpy(void *dest, const void *src, size_t n); */ 608c2ecf20Sopenharmony_ci 618c2ecf20Sopenharmony_ciENTRY(__memcpy) 628c2ecf20Sopenharmony_ciENTRY(mmiocpy) 638c2ecf20Sopenharmony_ciWEAK(memcpy) 648c2ecf20Sopenharmony_ci 658c2ecf20Sopenharmony_ci#include "copy_template.S" 668c2ecf20Sopenharmony_ci 678c2ecf20Sopenharmony_ciENDPROC(memcpy) 688c2ecf20Sopenharmony_ciENDPROC(mmiocpy) 698c2ecf20Sopenharmony_ciENDPROC(__memcpy) 70