diff options
author | Paul Mundt <lethal@linux-sh.org> | 2007-11-21 08:46:14 -0500 |
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committer | Paul Mundt <lethal@linux-sh.org> | 2008-01-27 23:18:54 -0500 |
commit | 9895f9429cb489ba271c06767531083ae4c4bcbe (patch) | |
tree | 5f6c410bf94021e9f1f309ad624f0add23eb92fa /arch/sh/mm/clear_page.S | |
parent | efddb4c882a64b7ca44b2a089d20020b30a2c6dd (diff) |
sh: clear/copy_page renames in lib and lib64.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/mm/clear_page.S')
-rw-r--r-- | arch/sh/mm/clear_page.S | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/arch/sh/mm/clear_page.S b/arch/sh/mm/clear_page.S deleted file mode 100644 index 7a7c81ee3f01..000000000000 --- a/arch/sh/mm/clear_page.S +++ /dev/null | |||
@@ -1,152 +0,0 @@ | |||
1 | /* | ||
2 | * __clear_user_page, __clear_user, clear_page implementation of SuperH | ||
3 | * | ||
4 | * Copyright (C) 2001 Kaz Kojima | ||
5 | * Copyright (C) 2001, 2002 Niibe Yutaka | ||
6 | * Copyright (C) 2006 Paul Mundt | ||
7 | */ | ||
8 | #include <linux/linkage.h> | ||
9 | #include <asm/page.h> | ||
10 | |||
11 | /* | ||
12 | * clear_page_slow | ||
13 | * @to: P1 address | ||
14 | * | ||
15 | * void clear_page_slow(void *to) | ||
16 | */ | ||
17 | |||
18 | /* | ||
19 | * r0 --- scratch | ||
20 | * r4 --- to | ||
21 | * r5 --- to + PAGE_SIZE | ||
22 | */ | ||
23 | ENTRY(clear_page_slow) | ||
24 | mov r4,r5 | ||
25 | mov.l .Llimit,r0 | ||
26 | add r0,r5 | ||
27 | mov #0,r0 | ||
28 | ! | ||
29 | 1: | ||
30 | #if defined(CONFIG_CPU_SH3) | ||
31 | mov.l r0,@r4 | ||
32 | #elif defined(CONFIG_CPU_SH4) | ||
33 | movca.l r0,@r4 | ||
34 | mov r4,r1 | ||
35 | #endif | ||
36 | add #32,r4 | ||
37 | mov.l r0,@-r4 | ||
38 | mov.l r0,@-r4 | ||
39 | mov.l r0,@-r4 | ||
40 | mov.l r0,@-r4 | ||
41 | mov.l r0,@-r4 | ||
42 | mov.l r0,@-r4 | ||
43 | mov.l r0,@-r4 | ||
44 | #if defined(CONFIG_CPU_SH4) | ||
45 | ocbwb @r1 | ||
46 | #endif | ||
47 | cmp/eq r5,r4 | ||
48 | bf/s 1b | ||
49 | add #28,r4 | ||
50 | ! | ||
51 | rts | ||
52 | nop | ||
53 | .Llimit: .long (PAGE_SIZE-28) | ||
54 | |||
55 | ENTRY(__clear_user) | ||
56 | ! | ||
57 | mov #0, r0 | ||
58 | mov #0xe0, r1 ! 0xffffffe0 | ||
59 | ! | ||
60 | ! r4..(r4+31)&~32 -------- not aligned [ Area 0 ] | ||
61 | ! (r4+31)&~32..(r4+r5)&~32 -------- aligned [ Area 1 ] | ||
62 | ! (r4+r5)&~32..r4+r5 -------- not aligned [ Area 2 ] | ||
63 | ! | ||
64 | ! Clear area 0 | ||
65 | mov r4, r2 | ||
66 | ! | ||
67 | tst r1, r5 ! length < 32 | ||
68 | bt .Larea2 ! skip to remainder | ||
69 | ! | ||
70 | add #31, r2 | ||
71 | and r1, r2 | ||
72 | cmp/eq r4, r2 | ||
73 | bt .Larea1 | ||
74 | mov r2, r3 | ||
75 | sub r4, r3 | ||
76 | mov r3, r7 | ||
77 | mov r4, r2 | ||
78 | ! | ||
79 | .L0: dt r3 | ||
80 | 0: mov.b r0, @r2 | ||
81 | bf/s .L0 | ||
82 | add #1, r2 | ||
83 | ! | ||
84 | sub r7, r5 | ||
85 | mov r2, r4 | ||
86 | .Larea1: | ||
87 | mov r4, r3 | ||
88 | add r5, r3 | ||
89 | and r1, r3 | ||
90 | cmp/hi r2, r3 | ||
91 | bf .Larea2 | ||
92 | ! | ||
93 | ! Clear area 1 | ||
94 | #if defined(CONFIG_CPU_SH4) | ||
95 | 1: movca.l r0, @r2 | ||
96 | #else | ||
97 | 1: mov.l r0, @r2 | ||
98 | #endif | ||
99 | add #4, r2 | ||
100 | 2: mov.l r0, @r2 | ||
101 | add #4, r2 | ||
102 | 3: mov.l r0, @r2 | ||
103 | add #4, r2 | ||
104 | 4: mov.l r0, @r2 | ||
105 | add #4, r2 | ||
106 | 5: mov.l r0, @r2 | ||
107 | add #4, r2 | ||
108 | 6: mov.l r0, @r2 | ||
109 | add #4, r2 | ||
110 | 7: mov.l r0, @r2 | ||
111 | add #4, r2 | ||
112 | 8: mov.l r0, @r2 | ||
113 | add #4, r2 | ||
114 | cmp/hi r2, r3 | ||
115 | bt/s 1b | ||
116 | nop | ||
117 | ! | ||
118 | ! Clear area 2 | ||
119 | .Larea2: | ||
120 | mov r4, r3 | ||
121 | add r5, r3 | ||
122 | cmp/hs r3, r2 | ||
123 | bt/s .Ldone | ||
124 | sub r2, r3 | ||
125 | .L2: dt r3 | ||
126 | 9: mov.b r0, @r2 | ||
127 | bf/s .L2 | ||
128 | add #1, r2 | ||
129 | ! | ||
130 | .Ldone: rts | ||
131 | mov #0, r0 ! return 0 as normal return | ||
132 | |||
133 | ! return the number of bytes remained | ||
134 | .Lbad_clear_user: | ||
135 | mov r4, r0 | ||
136 | add r5, r0 | ||
137 | rts | ||
138 | sub r2, r0 | ||
139 | |||
140 | .section __ex_table,"a" | ||
141 | .align 2 | ||
142 | .long 0b, .Lbad_clear_user | ||
143 | .long 1b, .Lbad_clear_user | ||
144 | .long 2b, .Lbad_clear_user | ||
145 | .long 3b, .Lbad_clear_user | ||
146 | .long 4b, .Lbad_clear_user | ||
147 | .long 5b, .Lbad_clear_user | ||
148 | .long 6b, .Lbad_clear_user | ||
149 | .long 7b, .Lbad_clear_user | ||
150 | .long 8b, .Lbad_clear_user | ||
151 | .long 9b, .Lbad_clear_user | ||
152 | .previous | ||