| 1 |
282 |
jeremybenn |
/* Copyright (C) 2006, 2008, 2009 Free Software Foundation, Inc.
|
| 2 |
|
|
|
| 3 |
|
|
This file is part of GCC.
|
| 4 |
|
|
|
| 5 |
|
|
GCC is free software; you can redistribute it and/or modify
|
| 6 |
|
|
it under the terms of the GNU General Public License as published by
|
| 7 |
|
|
the Free Software Foundation; either version 3, or (at your option)
|
| 8 |
|
|
any later version.
|
| 9 |
|
|
|
| 10 |
|
|
GCC is distributed in the hope that it will be useful,
|
| 11 |
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 12 |
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 13 |
|
|
GNU General Public License for more details.
|
| 14 |
|
|
|
| 15 |
|
|
Under Section 7 of GPL version 3, you are granted additional
|
| 16 |
|
|
permissions described in the GCC Runtime Library Exception, version
|
| 17 |
|
|
3.1, as published by the Free Software Foundation.
|
| 18 |
|
|
|
| 19 |
|
|
You should have received a copy of the GNU General Public License and
|
| 20 |
|
|
a copy of the GCC Runtime Library Exception along with this program;
|
| 21 |
|
|
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
| 22 |
|
|
. */
|
| 23 |
|
|
|
| 24 |
|
|
|
| 25 |
|
|
!! Linux specific atomic routines for the Renesas / SuperH SH CPUs.
|
| 26 |
|
|
!! Linux kernel for SH3/4 has implemented the support for software
|
| 27 |
|
|
!! atomic sequences.
|
| 28 |
|
|
|
| 29 |
|
|
#define FUNC(X) .type X,@function
|
| 30 |
|
|
#define HIDDEN_FUNC(X) FUNC(X); .hidden X
|
| 31 |
|
|
#define ENDFUNC0(X) .Lfe_##X: .size X,.Lfe_##X-X
|
| 32 |
|
|
#define ENDFUNC(X) ENDFUNC0(X)
|
| 33 |
|
|
|
| 34 |
|
|
#if ! __SH5__
|
| 35 |
|
|
|
| 36 |
|
|
#define ATOMIC_TEST_AND_SET(N,T,EXT) \
|
| 37 |
|
|
.global __sync_lock_test_and_set_##N; \
|
| 38 |
|
|
HIDDEN_FUNC(__sync_lock_test_and_set_##N); \
|
| 39 |
|
|
.align 2; \
|
| 40 |
|
|
__sync_lock_test_and_set_##N:; \
|
| 41 |
|
|
mova 1f, r0; \
|
| 42 |
|
|
nop; \
|
| 43 |
|
|
mov r15, r1; \
|
| 44 |
|
|
mov #(0f-1f), r15; \
|
| 45 |
|
|
0: mov.##T @r4, r2; \
|
| 46 |
|
|
mov.##T r5, @r4; \
|
| 47 |
|
|
1: mov r1, r15; \
|
| 48 |
|
|
rts; \
|
| 49 |
|
|
EXT r2, r0; \
|
| 50 |
|
|
ENDFUNC(__sync_lock_test_and_set_##N)
|
| 51 |
|
|
|
| 52 |
|
|
ATOMIC_TEST_AND_SET (1,b,extu.b)
|
| 53 |
|
|
ATOMIC_TEST_AND_SET (2,w,extu.w)
|
| 54 |
|
|
ATOMIC_TEST_AND_SET (4,l,mov)
|
| 55 |
|
|
|
| 56 |
|
|
#define ATOMIC_COMPARE_AND_SWAP(N,T,EXTS,EXT) \
|
| 57 |
|
|
.global __sync_val_compare_and_swap_##N; \
|
| 58 |
|
|
HIDDEN_FUNC(__sync_val_compare_and_swap_##N); \
|
| 59 |
|
|
.align 2; \
|
| 60 |
|
|
__sync_val_compare_and_swap_##N:; \
|
| 61 |
|
|
mova 1f, r0; \
|
| 62 |
|
|
EXTS r5, r5; \
|
| 63 |
|
|
mov r15, r1; \
|
| 64 |
|
|
mov #(0f-1f), r15; \
|
| 65 |
|
|
0: mov.##T @r4, r2; \
|
| 66 |
|
|
cmp/eq r2, r5; \
|
| 67 |
|
|
bf 1f; \
|
| 68 |
|
|
mov.##T r6, @r4; \
|
| 69 |
|
|
1: mov r1, r15; \
|
| 70 |
|
|
rts; \
|
| 71 |
|
|
EXT r2, r0; \
|
| 72 |
|
|
ENDFUNC(__sync_val_compare_and_swap_##N)
|
| 73 |
|
|
|
| 74 |
|
|
ATOMIC_COMPARE_AND_SWAP (1,b,exts.b,extu.b)
|
| 75 |
|
|
ATOMIC_COMPARE_AND_SWAP (2,w,exts.w,extu.w)
|
| 76 |
|
|
ATOMIC_COMPARE_AND_SWAP (4,l,mov,mov)
|
| 77 |
|
|
|
| 78 |
|
|
#define ATOMIC_BOOL_COMPARE_AND_SWAP(N,T,EXTS) \
|
| 79 |
|
|
.global __sync_bool_compare_and_swap_##N; \
|
| 80 |
|
|
HIDDEN_FUNC(__sync_bool_compare_and_swap_##N); \
|
| 81 |
|
|
.align 2; \
|
| 82 |
|
|
__sync_bool_compare_and_swap_##N:; \
|
| 83 |
|
|
mova 1f, r0; \
|
| 84 |
|
|
EXTS r5, r5; \
|
| 85 |
|
|
mov r15, r1; \
|
| 86 |
|
|
mov #(0f-1f), r15; \
|
| 87 |
|
|
0: mov.##T @r4, r2; \
|
| 88 |
|
|
cmp/eq r2, r5; \
|
| 89 |
|
|
bf 1f; \
|
| 90 |
|
|
mov.##T r6, @r4; \
|
| 91 |
|
|
1: mov r1, r15; \
|
| 92 |
|
|
rts; \
|
| 93 |
|
|
movt r0; \
|
| 94 |
|
|
ENDFUNC(__sync_bool_compare_and_swap_##N)
|
| 95 |
|
|
|
| 96 |
|
|
ATOMIC_BOOL_COMPARE_AND_SWAP (1,b,exts.b)
|
| 97 |
|
|
ATOMIC_BOOL_COMPARE_AND_SWAP (2,w,exts.w)
|
| 98 |
|
|
ATOMIC_BOOL_COMPARE_AND_SWAP (4,l,mov)
|
| 99 |
|
|
|
| 100 |
|
|
#define ATOMIC_FETCH_AND_OP(OP,N,T,EXT) \
|
| 101 |
|
|
.global __sync_fetch_and_##OP##_##N; \
|
| 102 |
|
|
HIDDEN_FUNC(__sync_fetch_and_##OP##_##N); \
|
| 103 |
|
|
.align 2; \
|
| 104 |
|
|
__sync_fetch_and_##OP##_##N:; \
|
| 105 |
|
|
mova 1f, r0; \
|
| 106 |
|
|
nop; \
|
| 107 |
|
|
mov r15, r1; \
|
| 108 |
|
|
mov #(0f-1f), r15; \
|
| 109 |
|
|
0: mov.##T @r4, r2; \
|
| 110 |
|
|
mov r5, r3; \
|
| 111 |
|
|
OP r2, r3; \
|
| 112 |
|
|
mov.##T r3, @r4; \
|
| 113 |
|
|
1: mov r1, r15; \
|
| 114 |
|
|
rts; \
|
| 115 |
|
|
EXT r2, r0; \
|
| 116 |
|
|
ENDFUNC(__sync_fetch_and_##OP##_##N)
|
| 117 |
|
|
|
| 118 |
|
|
ATOMIC_FETCH_AND_OP(add,1,b,extu.b)
|
| 119 |
|
|
ATOMIC_FETCH_AND_OP(add,2,w,extu.w)
|
| 120 |
|
|
ATOMIC_FETCH_AND_OP(add,4,l,mov)
|
| 121 |
|
|
|
| 122 |
|
|
ATOMIC_FETCH_AND_OP(or,1,b,extu.b)
|
| 123 |
|
|
ATOMIC_FETCH_AND_OP(or,2,w,extu.w)
|
| 124 |
|
|
ATOMIC_FETCH_AND_OP(or,4,l,mov)
|
| 125 |
|
|
|
| 126 |
|
|
ATOMIC_FETCH_AND_OP(and,1,b,extu.b)
|
| 127 |
|
|
ATOMIC_FETCH_AND_OP(and,2,w,extu.w)
|
| 128 |
|
|
ATOMIC_FETCH_AND_OP(and,4,l,mov)
|
| 129 |
|
|
|
| 130 |
|
|
ATOMIC_FETCH_AND_OP(xor,1,b,extu.b)
|
| 131 |
|
|
ATOMIC_FETCH_AND_OP(xor,2,w,extu.w)
|
| 132 |
|
|
ATOMIC_FETCH_AND_OP(xor,4,l,mov)
|
| 133 |
|
|
|
| 134 |
|
|
#define ATOMIC_FETCH_AND_COMBOP(OP,OP0,OP1,N,T,EXT) \
|
| 135 |
|
|
.global __sync_fetch_and_##OP##_##N; \
|
| 136 |
|
|
HIDDEN_FUNC(__sync_fetch_and_##OP##_##N); \
|
| 137 |
|
|
.align 2; \
|
| 138 |
|
|
__sync_fetch_and_##OP##_##N:; \
|
| 139 |
|
|
mova 1f, r0; \
|
| 140 |
|
|
mov r15, r1; \
|
| 141 |
|
|
mov #(0f-1f), r15; \
|
| 142 |
|
|
0: mov.##T @r4, r2; \
|
| 143 |
|
|
mov r5, r3; \
|
| 144 |
|
|
OP0 r2, r3; \
|
| 145 |
|
|
OP1 r3, r3; \
|
| 146 |
|
|
mov.##T r3, @r4; \
|
| 147 |
|
|
1: mov r1, r15; \
|
| 148 |
|
|
rts; \
|
| 149 |
|
|
EXT r2, r0; \
|
| 150 |
|
|
ENDFUNC(__sync_fetch_and_##OP##_##N)
|
| 151 |
|
|
|
| 152 |
|
|
ATOMIC_FETCH_AND_COMBOP(sub,sub,neg,1,b,extu.b)
|
| 153 |
|
|
ATOMIC_FETCH_AND_COMBOP(sub,sub,neg,2,w,extu.w)
|
| 154 |
|
|
ATOMIC_FETCH_AND_COMBOP(sub,sub,neg,4,l,mov)
|
| 155 |
|
|
|
| 156 |
|
|
ATOMIC_FETCH_AND_COMBOP(nand,and,not,1,b,extu.b)
|
| 157 |
|
|
ATOMIC_FETCH_AND_COMBOP(nand,and,not,2,w,extu.w)
|
| 158 |
|
|
ATOMIC_FETCH_AND_COMBOP(nand,and,not,4,l,mov)
|
| 159 |
|
|
|
| 160 |
|
|
#define ATOMIC_OP_AND_FETCH(OP,N,T,EXT) \
|
| 161 |
|
|
.global __sync_##OP##_and_fetch_##N; \
|
| 162 |
|
|
HIDDEN_FUNC(__sync_##OP##_and_fetch_##N); \
|
| 163 |
|
|
.align 2; \
|
| 164 |
|
|
__sync_##OP##_and_fetch_##N:; \
|
| 165 |
|
|
mova 1f, r0; \
|
| 166 |
|
|
nop; \
|
| 167 |
|
|
mov r15, r1; \
|
| 168 |
|
|
mov #(0f-1f), r15; \
|
| 169 |
|
|
0: mov.##T @r4, r2; \
|
| 170 |
|
|
mov r5, r3; \
|
| 171 |
|
|
OP r2, r3; \
|
| 172 |
|
|
mov.##T r3, @r4; \
|
| 173 |
|
|
1: mov r1, r15; \
|
| 174 |
|
|
rts; \
|
| 175 |
|
|
EXT r3, r0; \
|
| 176 |
|
|
ENDFUNC(__sync_##OP##_and_fetch_##N)
|
| 177 |
|
|
|
| 178 |
|
|
ATOMIC_OP_AND_FETCH(add,1,b,extu.b)
|
| 179 |
|
|
ATOMIC_OP_AND_FETCH(add,2,w,extu.w)
|
| 180 |
|
|
ATOMIC_OP_AND_FETCH(add,4,l,mov)
|
| 181 |
|
|
|
| 182 |
|
|
ATOMIC_OP_AND_FETCH(or,1,b,extu.b)
|
| 183 |
|
|
ATOMIC_OP_AND_FETCH(or,2,w,extu.w)
|
| 184 |
|
|
ATOMIC_OP_AND_FETCH(or,4,l,mov)
|
| 185 |
|
|
|
| 186 |
|
|
ATOMIC_OP_AND_FETCH(and,1,b,extu.b)
|
| 187 |
|
|
ATOMIC_OP_AND_FETCH(and,2,w,extu.w)
|
| 188 |
|
|
ATOMIC_OP_AND_FETCH(and,4,l,mov)
|
| 189 |
|
|
|
| 190 |
|
|
ATOMIC_OP_AND_FETCH(xor,1,b,extu.b)
|
| 191 |
|
|
ATOMIC_OP_AND_FETCH(xor,2,w,extu.w)
|
| 192 |
|
|
ATOMIC_OP_AND_FETCH(xor,4,l,mov)
|
| 193 |
|
|
|
| 194 |
|
|
#define ATOMIC_COMBOP_AND_FETCH(OP,OP0,OP1,N,T,EXT) \
|
| 195 |
|
|
.global __sync_##OP##_and_fetch_##N; \
|
| 196 |
|
|
HIDDEN_FUNC(__sync_##OP##_and_fetch_##N); \
|
| 197 |
|
|
.align 2; \
|
| 198 |
|
|
__sync_##OP##_and_fetch_##N:; \
|
| 199 |
|
|
mova 1f, r0; \
|
| 200 |
|
|
mov r15, r1; \
|
| 201 |
|
|
mov #(0f-1f), r15; \
|
| 202 |
|
|
0: mov.##T @r4, r2; \
|
| 203 |
|
|
mov r5, r3; \
|
| 204 |
|
|
OP0 r2, r3; \
|
| 205 |
|
|
OP1 r3, r3; \
|
| 206 |
|
|
mov.##T r3, @r4; \
|
| 207 |
|
|
1: mov r1, r15; \
|
| 208 |
|
|
rts; \
|
| 209 |
|
|
EXT r3, r0; \
|
| 210 |
|
|
ENDFUNC(__sync_##OP##_and_fetch_##N)
|
| 211 |
|
|
|
| 212 |
|
|
ATOMIC_COMBOP_AND_FETCH(sub,sub,neg,1,b,extu.b)
|
| 213 |
|
|
ATOMIC_COMBOP_AND_FETCH(sub,sub,neg,2,w,extu.w)
|
| 214 |
|
|
ATOMIC_COMBOP_AND_FETCH(sub,sub,neg,4,l,mov)
|
| 215 |
|
|
|
| 216 |
|
|
ATOMIC_COMBOP_AND_FETCH(nand,and,not,1,b,extu.b)
|
| 217 |
|
|
ATOMIC_COMBOP_AND_FETCH(nand,and,not,2,w,extu.w)
|
| 218 |
|
|
ATOMIC_COMBOP_AND_FETCH(nand,and,not,4,l,mov)
|
| 219 |
|
|
|
| 220 |
|
|
.section .note.GNU-stack,"",%progbits
|
| 221 |
|
|
.previous
|
| 222 |
|
|
|
| 223 |
|
|
#endif /* ! __SH5__ */
|
