1*4882a593Smuzhiyun/* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun/* 3*4882a593Smuzhiyun * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) 4*4882a593Smuzhiyun */ 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun#include <linux/linkage.h> 7*4882a593Smuzhiyun 8*4882a593SmuzhiyunENTRY_CFI(memcpy) 9*4882a593Smuzhiyun or r3,r0,r1 10*4882a593Smuzhiyun asl_s r3,r3,30 11*4882a593Smuzhiyun mov_s r5,r0 12*4882a593Smuzhiyun brls.d r2,r3,.Lcopy_bytewise 13*4882a593Smuzhiyun sub.f r3,r2,1 14*4882a593Smuzhiyun ld_s r12,[r1,0] 15*4882a593Smuzhiyun asr.f lp_count,r3,3 16*4882a593Smuzhiyun bbit0.d r3,2,.Lnox4 17*4882a593Smuzhiyun bmsk_s r2,r2,1 18*4882a593Smuzhiyun st.ab r12,[r5,4] 19*4882a593Smuzhiyun ld.a r12,[r1,4] 20*4882a593Smuzhiyun.Lnox4: 21*4882a593Smuzhiyun lppnz .Lendloop 22*4882a593Smuzhiyun ld_s r3,[r1,4] 23*4882a593Smuzhiyun st.ab r12,[r5,4] 24*4882a593Smuzhiyun ld.a r12,[r1,8] 25*4882a593Smuzhiyun st.ab r3,[r5,4] 26*4882a593Smuzhiyun.Lendloop: 27*4882a593Smuzhiyun breq r2,0,.Last_store 28*4882a593Smuzhiyun ld r3,[r5,0] 29*4882a593Smuzhiyun#ifdef __LITTLE_ENDIAN__ 30*4882a593Smuzhiyun add3 r2,-1,r2 31*4882a593Smuzhiyun ; uses long immediate 32*4882a593Smuzhiyun xor_s r12,r12,r3 33*4882a593Smuzhiyun bmsk r12,r12,r2 34*4882a593Smuzhiyun xor_s r12,r12,r3 35*4882a593Smuzhiyun#else /* BIG ENDIAN */ 36*4882a593Smuzhiyun sub3 r2,31,r2 37*4882a593Smuzhiyun ; uses long immediate 38*4882a593Smuzhiyun xor_s r3,r3,r12 39*4882a593Smuzhiyun bmsk r3,r3,r2 40*4882a593Smuzhiyun xor_s r12,r12,r3 41*4882a593Smuzhiyun#endif /* ENDIAN */ 42*4882a593Smuzhiyun.Last_store: 43*4882a593Smuzhiyun j_s.d [blink] 44*4882a593Smuzhiyun st r12,[r5,0] 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun .balign 4 47*4882a593Smuzhiyun.Lcopy_bytewise: 48*4882a593Smuzhiyun jcs [blink] 49*4882a593Smuzhiyun ldb_s r12,[r1,0] 50*4882a593Smuzhiyun lsr.f lp_count,r3 51*4882a593Smuzhiyun bhs_s .Lnox1 52*4882a593Smuzhiyun stb.ab r12,[r5,1] 53*4882a593Smuzhiyun ldb.a r12,[r1,1] 54*4882a593Smuzhiyun.Lnox1: 55*4882a593Smuzhiyun lppnz .Lendbloop 56*4882a593Smuzhiyun ldb_s r3,[r1,1] 57*4882a593Smuzhiyun stb.ab r12,[r5,1] 58*4882a593Smuzhiyun ldb.a r12,[r1,2] 59*4882a593Smuzhiyun stb.ab r3,[r5,1] 60*4882a593Smuzhiyun.Lendbloop: 61*4882a593Smuzhiyun j_s.d [blink] 62*4882a593Smuzhiyun stb r12,[r5,0] 63*4882a593SmuzhiyunEND_CFI(memcpy) 64