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Pull in m68k atomic ops from the thorpej-atomic branch.

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This commit is contained in:
ad 2007-11-29 17:09:31 +00:00
parent 3139da7ed3
commit 935eacf351
9 changed files with 530 additions and 0 deletions
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17
common/lib/libc/arch/m68k/atomic/Makefile.inc Normal file
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# $NetBSD: Makefile.inc,v 1.2 2007/11/29 17:09:31 ad Exp $
#
# Note: The atomic operations here in these assembly files are atomic
# only with respect to regular memory on uniprocessor systems. Since
# we don't support any MP m68k systems, this is just fine. If we ever
# do, then these routines will probably need to be replaced with CAS-
# based routines (CAS generates an atomic bus cycle, whereas these
# others are merely single-instruction).
#
.if defined(LIB) && (${LIB} == "kern")
SRCS+= atomic_add.S atomic_and.S atomic_cas.S atomic_dec.S \
atomic_inc.S atomic_or.S atomic_swap.S membar_ops_nop.c
.endif

72
common/lib/libc/arch/m68k/atomic/atomic_add.S Normal file
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/* $NetBSD: atomic_add.S,v 1.2 2007/11/29 17:09:31 ad Exp $ */
/*-
* Copyright (c) 2007 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "atomic_op_asm.h"
.text
.align 2
ENTRY_NOPROFILE(_atomic_add_32)
movl %sp@(4), %a0
movl %sp@(8), %d0
addl %d0, %a0@
rts
ATOMIC_OP_ALIAS(atomic_add_32,_atomic_add_32)
ATOMIC_OP_ALIAS(atomic_add_int,_atomic_add_32)
STRONG_ALIAS(_atomic_add_int,_atomic_add_32)
ATOMIC_OP_ALIAS(atomic_add_long,_atomic_add_32)
STRONG_ALIAS(_atomic_add_long,_atomic_add_32)
ATOMIC_OP_ALIAS(atomic_add_ptr,_atomic_add_32)
STRONG_ALIAS(_atomic_add_ptr,_atomic_add_32)
ENTRY_NOPROFILE(_atomic_add_32_nv)
movl %sp@(4), %a0
1: movl %a0@, %d0
movl %d0, %d1
addl %sp@(8), %d0
casl %d1, %d0, %a0@
bne 1b
movl %d0, %a0 /* pointers return also in %a0 */
rts
ATOMIC_OP_ALIAS(atomic_add_32_nv,_atomic_add_32_nv)
ATOMIC_OP_ALIAS(atomic_add_int_nv,_atomic_add_32_nv)
STRONG_ALIAS(_atomic_add_int_nv,_atomic_add_32_nv)
ATOMIC_OP_ALIAS(atomic_add_long_nv,_atomic_add_32_nv)
STRONG_ALIAS(_atomic_add_long_nv,_atomic_add_32_nv)
ATOMIC_OP_ALIAS(atomic_add_ptr_nv,_atomic_add_32_nv)
STRONG_ALIAS(_atomic_add_ptr_nv,_atomic_add_32_nv)

66
common/lib/libc/arch/m68k/atomic/atomic_and.S Normal file
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/* $NetBSD: atomic_and.S,v 1.2 2007/11/29 17:09:32 ad Exp $ */
/*-
* Copyright (c) 2007 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "atomic_op_asm.h"
.text
ENTRY_NOPROFILE(_atomic_and_32)
movl %sp@(4), %a0
movl %sp@(8), %d0
andl %d0, %a0@
rts
ATOMIC_OP_ALIAS(atomic_and_32,_atomic_and_32)
ATOMIC_OP_ALIAS(atomic_and_uint,_atomic_and_32)
STRONG_ALIAS(_atomic_and_uint,_atomic_and_32)
ATOMIC_OP_ALIAS(atomic_and_ulong,_atomic_and_32)
STRONG_ALIAS(_atomic_and_ulong,_atomic_and_32)
ENTRY_NOPROFILE(_atomic_and_32_nv)
movl %sp@(4), %a0
1: movl %a0@, %d0
movl %d0, %d1
andl %sp@(8), %d0
casl %d1, %d0, %a0@
bne 1b
rts
ATOMIC_OP_ALIAS(atomic_and_32_nv,_atomic_and_32_nv)
ATOMIC_OP_ALIAS(atomic_and_uint_nv,_atomic_and_32_nv)
STRONG_ALIAS(_atomic_and_uint_nv,_atomic_and_32_nv)
ATOMIC_OP_ALIAS(atomic_and_ulong_nv,_atomic_and_32_nv)
STRONG_ALIAS(_atomic_and_ulong_nv,_atomic_and_32_nv)

57
common/lib/libc/arch/m68k/atomic/atomic_cas.S Normal file
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/* $NetBSD: atomic_cas.S,v 1.2 2007/11/29 17:09:32 ad Exp $ */
/*-
* Copyright (c) 2007 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "atomic_op_asm.h"
.text
ENTRY_NOPROFILE(_atomic_cas_32)
movl %sp@(4), %a0
movl %sp@(8), %d0
movl %sp@(12), %d1
casl %d0, %d1, %a0@
/* %d0 now contains the old value */
movl %d0, %a0 /* pointers return also in %a0 */
rts
ATOMIC_OP_ALIAS(atomic_cas_32,_atomic_cas_32)
ATOMIC_OP_ALIAS(atomic_cas_uint,_atomic_cas_32)
STRONG_ALIAS(_atomic_cas_uint,_atomic_cas_32)
ATOMIC_OP_ALIAS(atomic_cas_ulong,_atomic_cas_32)
STRONG_ALIAS(_atomic_cas_ulong,_atomic_cas_32)
ATOMIC_OP_ALIAS(atomic_cas_ptr,_atomic_cas_32)
STRONG_ALIAS(_atomic_cas_ptr,_atomic_cas_32)

70
common/lib/libc/arch/m68k/atomic/atomic_dec.S Normal file
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/* $NetBSD: atomic_dec.S,v 1.2 2007/11/29 17:09:32 ad Exp $ */
/*-
* Copyright (c) 2007 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "atomic_op_asm.h"
.text
ENTRY_NOPROFILE(_atomic_dec_32)
movl %sp@(4), %a0
subql #1, %a0@
rts
ATOMIC_OP_ALIAS(atomic_dec_32,_atomic_dec_32)
ATOMIC_OP_ALIAS(atomic_dec_uint,_atomic_dec_32)
STRONG_ALIAS(_atomic_dec_uint,_atomic_dec_32)
ATOMIC_OP_ALIAS(atomic_dec_ulong,_atomic_dec_32)
STRONG_ALIAS(_atomic_dec_ulong,_atomic_dec_32)
ATOMIC_OP_ALIAS(atomic_dec_ptr,_atomic_dec_32)
STRONG_ALIAS(_atomic_dec_ptr,_atomic_dec_32)
ENTRY_NOPROFILE(_atomic_dec_32_nv)
movl %sp@(4), %a0
1: movl %a0@, %d0
movl %d0, %d1
subql #1, %d0
casl %d1, %d0, %a0@
bne 1b
movl %d0, %a0 /* pointers return also in %a0 */
rts
ATOMIC_OP_ALIAS(atomic_dec_32_nv,_atomic_dec_32_nv)
ATOMIC_OP_ALIAS(atomic_dec_uint_nv,_atomic_dec_32_nv)
STRONG_ALIAS(_atomic_dec_uint_nv,_atomic_dec_32_nv)
ATOMIC_OP_ALIAS(atomic_dec_ulong_nv,_atomic_dec_32_nv)
STRONG_ALIAS(_atomic_dec_ulong_nv,_atomic_dec_32_nv)
ATOMIC_OP_ALIAS(atomic_dec_ptr_nv,_atomic_dec_32_nv)
STRONG_ALIAS(_atomic_dec_ptr_nv,_atomic_dec_32_nv)

70
common/lib/libc/arch/m68k/atomic/atomic_inc.S Normal file
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/* $NetBSD: atomic_inc.S,v 1.2 2007/11/29 17:09:32 ad Exp $ */
/*-
* Copyright (c) 2007 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "atomic_op_asm.h"
.text
ENTRY_NOPROFILE(_atomic_inc_32)
movl %sp@(4), %a0
addql #1, %a0@
rts
ATOMIC_OP_ALIAS(atomic_inc_32,_atomic_inc_32)
ATOMIC_OP_ALIAS(atomic_inc_uint,_atomic_inc_32)
STRONG_ALIAS(_atomic_inc_uint,_atomic_inc_32)
ATOMIC_OP_ALIAS(atomic_inc_ulong,_atomic_inc_32)
STRONG_ALIAS(_atomic_inc_ulong,_atomic_inc_32)
ATOMIC_OP_ALIAS(atomic_inc_ptr,_atomic_inc_32)
STRONG_ALIAS(_atomic_inc_ptr,_atomic_inc_32)
ENTRY_NOPROFILE(_atomic_inc_32_nv)
movl %sp@(4), %a0
1: movl %a0@, %d0
movl %d0, %d1
addql #1, %d0
casl %d1, %d0, %a0@
bne 1b
movl %d0, %a0 /* pointers return also in %a0 */
rts
ATOMIC_OP_ALIAS(atomic_inc_32_nv,_atomic_inc_32_nv)
ATOMIC_OP_ALIAS(atomic_inc_uint_nv,_atomic_inc_32_nv)
STRONG_ALIAS(_atomic_inc_uint_nv,_atomic_inc_32_nv)
ATOMIC_OP_ALIAS(atomic_inc_ulong_nv,_atomic_inc_32_nv)
STRONG_ALIAS(_atomic_inc_ulong_nv,_atomic_inc_32_nv)
ATOMIC_OP_ALIAS(atomic_inc_ptr_nv,_atomic_inc_32_nv)
STRONG_ALIAS(_atomic_inc_ptr_nv,_atomic_inc_32_nv)

54
common/lib/libc/arch/m68k/atomic/atomic_op_asm.h Normal file
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/* $NetBSD: atomic_op_asm.h,v 1.2 2007/11/29 17:09:32 ad Exp $ */
/*-
* Copyright (c) 2006, 2007 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _ATOMIC_OP_ASM_H_
#define _ATOMIC_OP_ASM_H_
#include <machine/asm.h>
#if defined(_KERNEL)
#define ATOMIC_OP_ALIAS(a,s) STRONG_ALIAS(a,s)
#else /* _KERNEL */
#define ATOMIC_OP_ALIAS(a,s) WEAK_ALIAS(a,s)
#endif /* _KERNEL */
#endif /* _ATOMIC_OP_ASM_H_ */

66
common/lib/libc/arch/m68k/atomic/atomic_or.S Normal file
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/* $NetBSD: atomic_or.S,v 1.2 2007/11/29 17:09:33 ad Exp $ */
/*-
* Copyright (c) 2007 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "atomic_op_asm.h"
.text
ENTRY_NOPROFILE(_atomic_or_32)
movl %sp@(4), %a0
movl %sp@(8), %d0
orl %d0, %a0@
rts
ATOMIC_OP_ALIAS(atomic_or_32,_atomic_or_32)
ATOMIC_OP_ALIAS(atomic_or_uint,_atomic_or_32)
STRONG_ALIAS(_atomic_or_uint,_atomic_or_32)
ATOMIC_OP_ALIAS(atomic_or_ulong,_atomic_or_32)
STRONG_ALIAS(_atomic_or_ulong,_atomic_or_32)
ENTRY_NOPROFILE(_atomic_or_32_nv)
movl %sp@(4), %a0
1: movl %a0@, %d0
movl %d0, %d1
orl %sp@(8), %d0
casl %d1, %d0, %a0@
bne 1b
rts
ATOMIC_OP_ALIAS(atomic_or_32_nv,_atomic_or_32_nv)
ATOMIC_OP_ALIAS(atomic_or_uint_nv,_atomic_or_32_nv)
STRONG_ALIAS(_atomic_or_uint_nv,_atomic_or_32_nv)
ATOMIC_OP_ALIAS(atomic_or_ulong_nv,_atomic_or_32_nv)
STRONG_ALIAS(_atomic_or_ulong_nv,_atomic_or_32_nv)

58
common/lib/libc/arch/m68k/atomic/atomic_swap.S Normal file
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/* $NetBSD: atomic_swap.S,v 1.2 2007/11/29 17:09:33 ad Exp $ */
/*-
* Copyright (c) 2007 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "atomic_op_asm.h"
.text
ENTRY_NOPROFILE(_atomic_swap_32)
movl %sp@(4), %a0
1: movl %a0@, %d0
movl %sp@(8), %d1
casl %d0, %d1, %a0@
bne 1b
/* %d0 now contains the old value */
movl %d0, %a0 /* pointers return also in %a0 */
rts
ATOMIC_OP_ALIAS(atomic_swap_32,_atomic_swap_32)
ATOMIC_OP_ALIAS(atomic_swap_uint,_atomic_swap_32)
STRONG_ALIAS(_atomic_swap_uint,_atomic_swap_32)
ATOMIC_OP_ALIAS(atomic_swap_ulong,_atomic_swap_32)
STRONG_ALIAS(_atomic_swap_ulong,_atomic_swap_32)
ATOMIC_OP_ALIAS(atomic_swap_ptr,_atomic_swap_32)
STRONG_ALIAS(_atomic_swap_ptr,_atomic_swap_32)