1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
 
 
 
 
 4 */
 5
 6#include <linux/linkage.h>
 7
 8#define SMALL	7 /* Must be at least 6 to deal with alignment/loop issues.  */
 9
10ENTRY_CFI(memset)
11	mov_s	r4,r0
12	or	r12,r0,r2
13	bmsk.f	r12,r12,1
14	extb_s	r1,r1
15	asl	r3,r1,8
16	beq.d	.Laligned
17	or_s	r1,r1,r3
18	brls	r2,SMALL,.Ltiny
19	add	r3,r2,r0
20	stb	r1,[r3,-1]
21	bclr_s	r3,r3,0
22	stw	r1,[r3,-2]
23	bmsk.f	r12,r0,1
24	add_s	r2,r2,r12
25	sub.ne	r2,r2,4
26	stb.ab	r1,[r4,1]
27	and	r4,r4,-2
28	stw.ab	r1,[r4,2]
29	and	r4,r4,-4
30.Laligned:	; This code address should be aligned for speed.
31	asl	r3,r1,16
32	lsr.f	lp_count,r2,2
33	or_s	r1,r1,r3
34	lpne	.Loop_end
35	st.ab	r1,[r4,4]
36.Loop_end:
37	j_s	[blink]
38
39	.balign	4
40.Ltiny:
41	mov.f	lp_count,r2
42	lpne	.Ltiny_end
43	stb.ab	r1,[r4,1]
44.Ltiny_end:
45	j_s	[blink]
46END_CFI(memset)
47
48; memzero: @r0 = mem, @r1 = size_t
49; memset:  @r0 = mem, @r1 = char, @r2 = size_t
50
51ENTRY_CFI(memzero)
52    ; adjust bzero args to memset args
53    mov r2, r1
54    mov r1, 0
55    b  memset    ;tail call so need to tinker with blink
56END_CFI(memzero)

 
 1/*
 2 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
 3 *
 4 * This program is free software; you can redistribute it and/or modify
 5 * it under the terms of the GNU General Public License version 2 as
 6 * published by the Free Software Foundation.
 7 */
 8
 9#include <linux/linkage.h>
10
11#define SMALL	7 /* Must be at least 6 to deal with alignment/loop issues.  */
12
13ENTRY(memset)
14	mov_s	r4,r0
15	or	r12,r0,r2
16	bmsk.f	r12,r12,1
17	extb_s	r1,r1
18	asl	r3,r1,8
19	beq.d	.Laligned
20	or_s	r1,r1,r3
21	brls	r2,SMALL,.Ltiny
22	add	r3,r2,r0
23	stb	r1,[r3,-1]
24	bclr_s	r3,r3,0
25	stw	r1,[r3,-2]
26	bmsk.f	r12,r0,1
27	add_s	r2,r2,r12
28	sub.ne	r2,r2,4
29	stb.ab	r1,[r4,1]
30	and	r4,r4,-2
31	stw.ab	r1,[r4,2]
32	and	r4,r4,-4
33.Laligned:	; This code address should be aligned for speed.
34	asl	r3,r1,16
35	lsr.f	lp_count,r2,2
36	or_s	r1,r1,r3
37	lpne	.Loop_end
38	st.ab	r1,[r4,4]
39.Loop_end:
40	j_s	[blink]
41
42	.balign	4
43.Ltiny:
44	mov.f	lp_count,r2
45	lpne	.Ltiny_end
46	stb.ab	r1,[r4,1]
47.Ltiny_end:
48	j_s	[blink]
49END(memset)
50
51; memzero: @r0 = mem, @r1 = size_t
52; memset:  @r0 = mem, @r1 = char, @r2 = size_t
53
54ENTRY(memzero)
55    ; adjust bzero args to memset args
56    mov r2, r1
57    mov r1, 0
58    b  memset    ;tail call so need to tinker with blink
59END(memzero)