/* Copyright (C) 2006 Free Software Foundation, Inc.
|
/* Copyright (C) 2006 Free Software Foundation, Inc.
|
|
|
This file is part of GCC.
|
This file is part of GCC.
|
|
|
GCC is free software; you can redistribute it and/or modify
|
GCC is free software; you can redistribute it and/or modify
|
it under the terms of the GNU General Public License as published by
|
it under the terms of the GNU General Public License as published by
|
the Free Software Foundation; either version 2, or (at your option)
|
the Free Software Foundation; either version 2, or (at your option)
|
any later version.
|
any later version.
|
|
|
GCC is distributed in the hope that it will be useful,
|
GCC is distributed in the hope that it will be useful,
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
GNU General Public License for more details.
|
GNU General Public License for more details.
|
|
|
You should have received a copy of the GNU General Public License
|
You should have received a copy of the GNU General Public License
|
along with GCC; see the file COPYING. If not, write to
|
along with GCC; see the file COPYING. If not, write to
|
the Free Software Foundation, 51 Franklin Street, Fifth Floor,
|
the Free Software Foundation, 51 Franklin Street, Fifth Floor,
|
Boston, MA 02110-1301, USA. */
|
Boston, MA 02110-1301, USA. */
|
|
|
/* As a special exception, if you link this library with other files,
|
/* As a special exception, if you link this library with other files,
|
some of which are compiled with GCC, to produce an executable,
|
some of which are compiled with GCC, to produce an executable,
|
this library does not by itself cause the resulting executable
|
this library does not by itself cause the resulting executable
|
to be covered by the GNU General Public License.
|
to be covered by the GNU General Public License.
|
This exception does not however invalidate any other reasons why
|
This exception does not however invalidate any other reasons why
|
the executable file might be covered by the GNU General Public License. */
|
the executable file might be covered by the GNU General Public License. */
|
|
|
!! Linux specific atomic routines for the Renesas / SuperH SH CPUs.
|
!! Linux specific atomic routines for the Renesas / SuperH SH CPUs.
|
!! Linux kernel for SH3/4 has implemented the support for software
|
!! Linux kernel for SH3/4 has implemented the support for software
|
!! atomic sequences.
|
!! atomic sequences.
|
|
|
#define FUNC(X) .type X,@function
|
#define FUNC(X) .type X,@function
|
#define HIDDEN_FUNC(X) FUNC(X); .hidden X
|
#define HIDDEN_FUNC(X) FUNC(X); .hidden X
|
#define ENDFUNC0(X) .Lfe_##X: .size X,.Lfe_##X-X
|
#define ENDFUNC0(X) .Lfe_##X: .size X,.Lfe_##X-X
|
#define ENDFUNC(X) ENDFUNC0(X)
|
#define ENDFUNC(X) ENDFUNC0(X)
|
|
|
#if ! __SH5__
|
#if ! __SH5__
|
|
|
#define ATOMIC_TEST_AND_SET(N,T) \
|
#define ATOMIC_TEST_AND_SET(N,T) \
|
.global __sync_lock_test_and_set_##N; \
|
.global __sync_lock_test_and_set_##N; \
|
HIDDEN_FUNC(__sync_lock_test_and_set_##N); \
|
HIDDEN_FUNC(__sync_lock_test_and_set_##N); \
|
.align 2; \
|
.align 2; \
|
__sync_lock_test_and_set_##N:; \
|
__sync_lock_test_and_set_##N:; \
|
mova 1f, r0; \
|
mova 1f, r0; \
|
nop; \
|
nop; \
|
mov r15, r1; \
|
mov r15, r1; \
|
mov #(0f-1f), r15; \
|
mov #(0f-1f), r15; \
|
0: mov.##T @r4, r2; \
|
0: mov.##T @r4, r2; \
|
mov.##T r5, @r4; \
|
mov.##T r5, @r4; \
|
1: mov r1, r15; \
|
1: mov r1, r15; \
|
rts; \
|
rts; \
|
mov r2, r0; \
|
mov r2, r0; \
|
ENDFUNC(__sync_lock_test_and_set_##N)
|
ENDFUNC(__sync_lock_test_and_set_##N)
|
|
|
ATOMIC_TEST_AND_SET (1,b)
|
ATOMIC_TEST_AND_SET (1,b)
|
ATOMIC_TEST_AND_SET (2,w)
|
ATOMIC_TEST_AND_SET (2,w)
|
ATOMIC_TEST_AND_SET (4,l)
|
ATOMIC_TEST_AND_SET (4,l)
|
|
|
#define ATOMIC_COMPARE_AND_SWAP(N,T) \
|
#define ATOMIC_COMPARE_AND_SWAP(N,T) \
|
.global __sync_compare_and_swap_##N; \
|
.global __sync_compare_and_swap_##N; \
|
HIDDEN_FUNC(__sync_compare_and_swap_##N); \
|
HIDDEN_FUNC(__sync_compare_and_swap_##N); \
|
.align 2; \
|
.align 2; \
|
__sync_compare_and_swap_##N:; \
|
__sync_compare_and_swap_##N:; \
|
mova 1f, r0; \
|
mova 1f, r0; \
|
nop; \
|
nop; \
|
mov r15, r1; \
|
mov r15, r1; \
|
mov #(0f-1f), r15; \
|
mov #(0f-1f), r15; \
|
0: mov.##T @r4, r2; \
|
0: mov.##T @r4, r2; \
|
cmp/eq r2, r5; \
|
cmp/eq r2, r5; \
|
bf 1f; \
|
bf 1f; \
|
mov.##T r6, @r4; \
|
mov.##T r6, @r4; \
|
1: mov r1, r15; \
|
1: mov r1, r15; \
|
rts; \
|
rts; \
|
mov r2, r0; \
|
mov r2, r0; \
|
ENDFUNC(__sync_compare_and_swap_##N)
|
ENDFUNC(__sync_compare_and_swap_##N)
|
|
|
ATOMIC_COMPARE_AND_SWAP (1,b)
|
ATOMIC_COMPARE_AND_SWAP (1,b)
|
ATOMIC_COMPARE_AND_SWAP (2,w)
|
ATOMIC_COMPARE_AND_SWAP (2,w)
|
ATOMIC_COMPARE_AND_SWAP (4,l)
|
ATOMIC_COMPARE_AND_SWAP (4,l)
|
|
|
#define ATOMIC_FETCH_AND_OP(OP,N,T) \
|
#define ATOMIC_FETCH_AND_OP(OP,N,T) \
|
.global __sync_fetch_and_##OP##_##N; \
|
.global __sync_fetch_and_##OP##_##N; \
|
HIDDEN_FUNC(__sync_fetch_and_##OP##_##N); \
|
HIDDEN_FUNC(__sync_fetch_and_##OP##_##N); \
|
.align 2; \
|
.align 2; \
|
__sync_fetch_and_##OP##_##N:; \
|
__sync_fetch_and_##OP##_##N:; \
|
mova 1f, r0; \
|
mova 1f, r0; \
|
mov r15, r1; \
|
mov r15, r1; \
|
mov #(0f-1f), r15; \
|
mov #(0f-1f), r15; \
|
0: mov.##T @r4, r2; \
|
0: mov.##T @r4, r2; \
|
OP r2, r5; \
|
OP r2, r5; \
|
mov.##T r5, @r4; \
|
mov.##T r5, @r4; \
|
1: mov r1, r15; \
|
1: mov r1, r15; \
|
rts; \
|
rts; \
|
mov r2, r0; \
|
mov r2, r0; \
|
ENDFUNC(__sync_fetch_and_##OP##_##N)
|
ENDFUNC(__sync_fetch_and_##OP##_##N)
|
|
|
ATOMIC_FETCH_AND_OP(add,1,b)
|
ATOMIC_FETCH_AND_OP(add,1,b)
|
ATOMIC_FETCH_AND_OP(add,2,w)
|
ATOMIC_FETCH_AND_OP(add,2,w)
|
ATOMIC_FETCH_AND_OP(add,4,l)
|
ATOMIC_FETCH_AND_OP(add,4,l)
|
|
|
ATOMIC_FETCH_AND_OP(or,1,b)
|
ATOMIC_FETCH_AND_OP(or,1,b)
|
ATOMIC_FETCH_AND_OP(or,2,w)
|
ATOMIC_FETCH_AND_OP(or,2,w)
|
ATOMIC_FETCH_AND_OP(or,4,l)
|
ATOMIC_FETCH_AND_OP(or,4,l)
|
|
|
ATOMIC_FETCH_AND_OP(and,1,b)
|
ATOMIC_FETCH_AND_OP(and,1,b)
|
ATOMIC_FETCH_AND_OP(and,2,w)
|
ATOMIC_FETCH_AND_OP(and,2,w)
|
ATOMIC_FETCH_AND_OP(and,4,l)
|
ATOMIC_FETCH_AND_OP(and,4,l)
|
|
|
ATOMIC_FETCH_AND_OP(xor,1,b)
|
ATOMIC_FETCH_AND_OP(xor,1,b)
|
ATOMIC_FETCH_AND_OP(xor,2,w)
|
ATOMIC_FETCH_AND_OP(xor,2,w)
|
ATOMIC_FETCH_AND_OP(xor,4,l)
|
ATOMIC_FETCH_AND_OP(xor,4,l)
|
|
|
#define ATOMIC_FETCH_AND_COMBOP(OP,OP0,OP1,N,T) \
|
#define ATOMIC_FETCH_AND_COMBOP(OP,OP0,OP1,N,T) \
|
.global __sync_fetch_and_##OP##_##N; \
|
.global __sync_fetch_and_##OP##_##N; \
|
HIDDEN_FUNC(__sync_fetch_and_##OP##_##N); \
|
HIDDEN_FUNC(__sync_fetch_and_##OP##_##N); \
|
.align 2; \
|
.align 2; \
|
__sync_fetch_and_##OP##_##N:; \
|
__sync_fetch_and_##OP##_##N:; \
|
mova 1f, r0; \
|
mova 1f, r0; \
|
nop; \
|
nop; \
|
mov r15, r1; \
|
mov r15, r1; \
|
mov #(0f-1f), r15; \
|
mov #(0f-1f), r15; \
|
0: mov.##T @r4, r2; \
|
0: mov.##T @r4, r2; \
|
OP0 r2, r5; \
|
OP0 r2, r5; \
|
OP1 r5, r5; \
|
OP1 r5, r5; \
|
mov.##T r5, @r4; \
|
mov.##T r5, @r4; \
|
1: mov r1, r15; \
|
1: mov r1, r15; \
|
rts; \
|
rts; \
|
mov r2, r0; \
|
mov r2, r0; \
|
ENDFUNC(__sync_fetch_and_##OP##_##N)
|
ENDFUNC(__sync_fetch_and_##OP##_##N)
|
|
|
ATOMIC_FETCH_AND_COMBOP(sub,sub,neg,1,b)
|
ATOMIC_FETCH_AND_COMBOP(sub,sub,neg,1,b)
|
ATOMIC_FETCH_AND_COMBOP(sub,sub,neg,2,w)
|
ATOMIC_FETCH_AND_COMBOP(sub,sub,neg,2,w)
|
ATOMIC_FETCH_AND_COMBOP(sub,sub,neg,4,l)
|
ATOMIC_FETCH_AND_COMBOP(sub,sub,neg,4,l)
|
|
|
ATOMIC_FETCH_AND_COMBOP(nand,and,not,1,b)
|
ATOMIC_FETCH_AND_COMBOP(nand,and,not,1,b)
|
ATOMIC_FETCH_AND_COMBOP(nand,and,not,2,w)
|
ATOMIC_FETCH_AND_COMBOP(nand,and,not,2,w)
|
ATOMIC_FETCH_AND_COMBOP(nand,and,not,4,l)
|
ATOMIC_FETCH_AND_COMBOP(nand,and,not,4,l)
|
|
|
#endif /* ! __SH5__ */
|
#endif /* ! __SH5__ */
|
|
|
