diff options
Diffstat (limited to 'arch/sparc/lib')
-rw-r--r-- | arch/sparc/lib/Makefile | 2 | ||||
-rw-r--r-- | arch/sparc/lib/rwsem_64.S | 163 |
2 files changed, 1 insertions, 164 deletions
diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile index c4b5e03af115..846d1c4374ea 100644 --- a/arch/sparc/lib/Makefile +++ b/arch/sparc/lib/Makefile | |||
@@ -15,7 +15,7 @@ lib-$(CONFIG_SPARC32) += divdi3.o udivdi3.o | |||
15 | lib-$(CONFIG_SPARC32) += copy_user.o locks.o | 15 | lib-$(CONFIG_SPARC32) += copy_user.o locks.o |
16 | lib-y += atomic_$(BITS).o | 16 | lib-y += atomic_$(BITS).o |
17 | lib-$(CONFIG_SPARC32) += lshrdi3.o ashldi3.o | 17 | lib-$(CONFIG_SPARC32) += lshrdi3.o ashldi3.o |
18 | lib-y += rwsem_$(BITS).o | 18 | lib-$(CONFIG_SPARC32) += rwsem_32.o |
19 | lib-$(CONFIG_SPARC32) += muldi3.o bitext.o cmpdi2.o | 19 | lib-$(CONFIG_SPARC32) += muldi3.o bitext.o cmpdi2.o |
20 | 20 | ||
21 | lib-$(CONFIG_SPARC64) += copy_page.o clear_page.o bzero.o | 21 | lib-$(CONFIG_SPARC64) += copy_page.o clear_page.o bzero.o |
diff --git a/arch/sparc/lib/rwsem_64.S b/arch/sparc/lib/rwsem_64.S deleted file mode 100644 index 91a7d29a79d5..000000000000 --- a/arch/sparc/lib/rwsem_64.S +++ /dev/null | |||
@@ -1,163 +0,0 @@ | |||
1 | /* rwsem.S: RW semaphore assembler. | ||
2 | * | ||
3 | * Written by David S. Miller (davem@redhat.com), 2001. | ||
4 | * Derived from asm-i386/rwsem.h | ||
5 | */ | ||
6 | |||
7 | #include <asm/rwsem-const.h> | ||
8 | |||
9 | .section .sched.text, "ax" | ||
10 | |||
11 | .globl __down_read | ||
12 | __down_read: | ||
13 | 1: lduw [%o0], %g1 | ||
14 | add %g1, 1, %g7 | ||
15 | cas [%o0], %g1, %g7 | ||
16 | cmp %g1, %g7 | ||
17 | bne,pn %icc, 1b | ||
18 | add %g7, 1, %g7 | ||
19 | cmp %g7, 0 | ||
20 | bl,pn %icc, 3f | ||
21 | nop | ||
22 | 2: | ||
23 | retl | ||
24 | nop | ||
25 | 3: | ||
26 | save %sp, -192, %sp | ||
27 | call rwsem_down_read_failed | ||
28 | mov %i0, %o0 | ||
29 | ret | ||
30 | restore | ||
31 | .size __down_read, .-__down_read | ||
32 | |||
33 | .globl __down_read_trylock | ||
34 | __down_read_trylock: | ||
35 | 1: lduw [%o0], %g1 | ||
36 | add %g1, 1, %g7 | ||
37 | cmp %g7, 0 | ||
38 | bl,pn %icc, 2f | ||
39 | mov 0, %o1 | ||
40 | cas [%o0], %g1, %g7 | ||
41 | cmp %g1, %g7 | ||
42 | bne,pn %icc, 1b | ||
43 | mov 1, %o1 | ||
44 | 2: retl | ||
45 | mov %o1, %o0 | ||
46 | .size __down_read_trylock, .-__down_read_trylock | ||
47 | |||
48 | .globl __down_write | ||
49 | __down_write: | ||
50 | sethi %hi(RWSEM_ACTIVE_WRITE_BIAS), %g1 | ||
51 | or %g1, %lo(RWSEM_ACTIVE_WRITE_BIAS), %g1 | ||
52 | 1: | ||
53 | lduw [%o0], %g3 | ||
54 | add %g3, %g1, %g7 | ||
55 | cas [%o0], %g3, %g7 | ||
56 | cmp %g3, %g7 | ||
57 | bne,pn %icc, 1b | ||
58 | cmp %g7, 0 | ||
59 | bne,pn %icc, 3f | ||
60 | nop | ||
61 | 2: retl | ||
62 | nop | ||
63 | 3: | ||
64 | save %sp, -192, %sp | ||
65 | call rwsem_down_write_failed | ||
66 | mov %i0, %o0 | ||
67 | ret | ||
68 | restore | ||
69 | .size __down_write, .-__down_write | ||
70 | |||
71 | .globl __down_write_trylock | ||
72 | __down_write_trylock: | ||
73 | sethi %hi(RWSEM_ACTIVE_WRITE_BIAS), %g1 | ||
74 | or %g1, %lo(RWSEM_ACTIVE_WRITE_BIAS), %g1 | ||
75 | 1: | ||
76 | lduw [%o0], %g3 | ||
77 | cmp %g3, 0 | ||
78 | bne,pn %icc, 2f | ||
79 | mov 0, %o1 | ||
80 | add %g3, %g1, %g7 | ||
81 | cas [%o0], %g3, %g7 | ||
82 | cmp %g3, %g7 | ||
83 | bne,pn %icc, 1b | ||
84 | mov 1, %o1 | ||
85 | 2: retl | ||
86 | mov %o1, %o0 | ||
87 | .size __down_write_trylock, .-__down_write_trylock | ||
88 | |||
89 | .globl __up_read | ||
90 | __up_read: | ||
91 | 1: | ||
92 | lduw [%o0], %g1 | ||
93 | sub %g1, 1, %g7 | ||
94 | cas [%o0], %g1, %g7 | ||
95 | cmp %g1, %g7 | ||
96 | bne,pn %icc, 1b | ||
97 | cmp %g7, 0 | ||
98 | bl,pn %icc, 3f | ||
99 | nop | ||
100 | 2: retl | ||
101 | nop | ||
102 | 3: sethi %hi(RWSEM_ACTIVE_MASK), %g1 | ||
103 | sub %g7, 1, %g7 | ||
104 | or %g1, %lo(RWSEM_ACTIVE_MASK), %g1 | ||
105 | andcc %g7, %g1, %g0 | ||
106 | bne,pn %icc, 2b | ||
107 | nop | ||
108 | save %sp, -192, %sp | ||
109 | call rwsem_wake | ||
110 | mov %i0, %o0 | ||
111 | ret | ||
112 | restore | ||
113 | .size __up_read, .-__up_read | ||
114 | |||
115 | .globl __up_write | ||
116 | __up_write: | ||
117 | sethi %hi(RWSEM_ACTIVE_WRITE_BIAS), %g1 | ||
118 | or %g1, %lo(RWSEM_ACTIVE_WRITE_BIAS), %g1 | ||
119 | 1: | ||
120 | lduw [%o0], %g3 | ||
121 | sub %g3, %g1, %g7 | ||
122 | cas [%o0], %g3, %g7 | ||
123 | cmp %g3, %g7 | ||
124 | bne,pn %icc, 1b | ||
125 | sub %g7, %g1, %g7 | ||
126 | cmp %g7, 0 | ||
127 | bl,pn %icc, 3f | ||
128 | nop | ||
129 | 2: | ||
130 | retl | ||
131 | nop | ||
132 | 3: | ||
133 | save %sp, -192, %sp | ||
134 | call rwsem_wake | ||
135 | mov %i0, %o0 | ||
136 | ret | ||
137 | restore | ||
138 | .size __up_write, .-__up_write | ||
139 | |||
140 | .globl __downgrade_write | ||
141 | __downgrade_write: | ||
142 | sethi %hi(RWSEM_WAITING_BIAS), %g1 | ||
143 | or %g1, %lo(RWSEM_WAITING_BIAS), %g1 | ||
144 | 1: | ||
145 | lduw [%o0], %g3 | ||
146 | sub %g3, %g1, %g7 | ||
147 | cas [%o0], %g3, %g7 | ||
148 | cmp %g3, %g7 | ||
149 | bne,pn %icc, 1b | ||
150 | sub %g7, %g1, %g7 | ||
151 | cmp %g7, 0 | ||
152 | bl,pn %icc, 3f | ||
153 | nop | ||
154 | 2: | ||
155 | retl | ||
156 | nop | ||
157 | 3: | ||
158 | save %sp, -192, %sp | ||
159 | call rwsem_downgrade_wake | ||
160 | mov %i0, %o0 | ||
161 | ret | ||
162 | restore | ||
163 | .size __downgrade_write, .-__downgrade_write | ||