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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>
|
| #define SMALL 7 /* Must be at least 6 to deal with alignment/loop issues. */
|
| ENTRY_CFI(memset)
| mov_s r4,r0
| or r12,r0,r2
| bmsk.f r12,r12,1
| extb_s r1,r1
| asl r3,r1,8
| beq.d .Laligned
| or_s r1,r1,r3
| brls r2,SMALL,.Ltiny
| add r3,r2,r0
| stb r1,[r3,-1]
| bclr_s r3,r3,0
| stw r1,[r3,-2]
| bmsk.f r12,r0,1
| add_s r2,r2,r12
| sub.ne r2,r2,4
| stb.ab r1,[r4,1]
| and r4,r4,-2
| stw.ab r1,[r4,2]
| and r4,r4,-4
| .Laligned: ; This code address should be aligned for speed.
| asl r3,r1,16
| lsr.f lp_count,r2,2
| or_s r1,r1,r3
| lpne .Loop_end
| st.ab r1,[r4,4]
| .Loop_end:
| j_s [blink]
|
| .balign 4
| .Ltiny:
| mov.f lp_count,r2
| lpne .Ltiny_end
| stb.ab r1,[r4,1]
| .Ltiny_end:
| j_s [blink]
| END_CFI(memset)
|
| ; memzero: @r0 = mem, @r1 = size_t
| ; memset: @r0 = mem, @r1 = char, @r2 = size_t
|
| ENTRY_CFI(memzero)
| ; adjust bzero args to memset args
| mov r2, r1
| mov r1, 0
| b memset ;tail call so need to tinker with blink
| END_CFI(memzero)
|
|
