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| /* SPDX-License-Identifier: GPL-2.0-only */
| /*
| * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
| */
|
| #include <linux/linkage.h>
|
| ENTRY_CFI(memcpy)
| or r3,r0,r1
| asl_s r3,r3,30
| mov_s r5,r0
| brls.d r2,r3,.Lcopy_bytewise
| sub.f r3,r2,1
| ld_s r12,[r1,0]
| asr.f lp_count,r3,3
| bbit0.d r3,2,.Lnox4
| bmsk_s r2,r2,1
| st.ab r12,[r5,4]
| ld.a r12,[r1,4]
| .Lnox4:
| lppnz .Lendloop
| ld_s r3,[r1,4]
| st.ab r12,[r5,4]
| ld.a r12,[r1,8]
| st.ab r3,[r5,4]
| .Lendloop:
| breq r2,0,.Last_store
| ld r3,[r5,0]
| #ifdef __LITTLE_ENDIAN__
| add3 r2,-1,r2
| ; uses long immediate
| xor_s r12,r12,r3
| bmsk r12,r12,r2
| xor_s r12,r12,r3
| #else /* BIG ENDIAN */
| sub3 r2,31,r2
| ; uses long immediate
| xor_s r3,r3,r12
| bmsk r3,r3,r2
| xor_s r12,r12,r3
| #endif /* ENDIAN */
| .Last_store:
| j_s.d [blink]
| st r12,[r5,0]
|
| .balign 4
| .Lcopy_bytewise:
| jcs [blink]
| ldb_s r12,[r1,0]
| lsr.f lp_count,r3
| bhs_s .Lnox1
| stb.ab r12,[r5,1]
| ldb.a r12,[r1,1]
| .Lnox1:
| lppnz .Lendbloop
| ldb_s r3,[r1,1]
| stb.ab r12,[r5,1]
| ldb.a r12,[r1,2]
| stb.ab r3,[r5,1]
| .Lendbloop:
| j_s.d [blink]
| stb r12,[r5,0]
| END_CFI(memcpy)
|
|
