diff options
| author | martin <martin@NetBSD.org> | 2014-02-21 15:51:07 +0000 |
|---|---|---|
| committer | martin <martin@NetBSD.org> | 2014-02-21 15:51:07 +0000 |
| commit | 3fef615a3671cda31497cbf59e4e3cd9f71705f0 (patch) | |
| tree | 9e7319ca802b21f8e3ab71798a6246436e6d3160 /common/lib/libc | |
| parent | b9adaf0b20ac0ef5e78e03ac592bbb8e0f6f5af8 (diff) | |
Provide 8 and 16 bit sync ops (using 16 bit and 8 bit cas)
Diffstat (limited to 'common/lib/libc')
| -rw-r--r-- | common/lib/libc/atomic/atomic_add_16_cas.c | 63 | ||||
| -rw-r--r-- | common/lib/libc/atomic/atomic_add_8_cas.c | 63 | ||||
| -rw-r--r-- | common/lib/libc/atomic/atomic_and_16_cas.c | 49 | ||||
| -rw-r--r-- | common/lib/libc/atomic/atomic_and_8_cas.c | 49 | ||||
| -rw-r--r-- | common/lib/libc/atomic/atomic_cas_16_cas.c | 45 | ||||
| -rw-r--r-- | common/lib/libc/atomic/atomic_cas_8_cas.c | 45 | ||||
| -rw-r--r-- | common/lib/libc/atomic/atomic_nand_16_cas.c | 61 | ||||
| -rw-r--r-- | common/lib/libc/atomic/atomic_nand_8_cas.c | 61 | ||||
| -rw-r--r-- | common/lib/libc/atomic/atomic_op_namespace.h | 4 | ||||
| -rw-r--r-- | common/lib/libc/atomic/atomic_or_16_cas.c | 64 | ||||
| -rw-r--r-- | common/lib/libc/atomic/atomic_or_8_cas.c | 64 | ||||
| -rw-r--r-- | common/lib/libc/atomic/atomic_sub_16_cas.c | 61 | ||||
| -rw-r--r-- | common/lib/libc/atomic/atomic_sub_8_cas.c | 61 | ||||
| -rw-r--r-- | common/lib/libc/atomic/atomic_swap_16_cas.c | 50 | ||||
| -rw-r--r-- | common/lib/libc/atomic/atomic_swap_8_cas.c | 50 | ||||
| -rw-r--r-- | common/lib/libc/atomic/atomic_xor_16_cas.c | 61 | ||||
| -rw-r--r-- | common/lib/libc/atomic/atomic_xor_8_cas.c | 61 |
17 files changed, 911 insertions, 1 deletions
diff --git a/common/lib/libc/atomic/atomic_add_16_cas.c b/common/lib/libc/atomic/atomic_add_16_cas.c new file mode 100644 index 00000000000..d27572fc923 --- /dev/null +++ b/common/lib/libc/atomic/atomic_add_16_cas.c @@ -0,0 +1,63 @@ +/* $NetBSD: atomic_add_16_cas.c,v 1.2 2014/02/21 15:51:07 martin 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. + * + * 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_namespace.h" + +#include <sys/atomic.h> + +uint16_t fetch_and_add_2(volatile uint16_t *, uint16_t, ...) + asm("__sync_fetch_and_add_2"); +uint16_t add_and_fetch_2(volatile uint16_t *, uint16_t, ...) + asm("__sync_add_and_fetch_2"); + +uint16_t +fetch_and_add_2(volatile uint16_t *addr, uint16_t val, ...) +{ + uint16_t old, new; + + do { + old = *addr; + new = old + val; + } while (atomic_cas_16(addr, old, new) != old); + return old; +} + +uint16_t +add_and_fetch_2(volatile uint16_t *addr, uint16_t val, ...) +{ + uint16_t old, new; + + do { + old = *addr; + new = old + val; + } while (atomic_cas_16(addr, old, new) != old); + return new; +} diff --git a/common/lib/libc/atomic/atomic_add_8_cas.c b/common/lib/libc/atomic/atomic_add_8_cas.c new file mode 100644 index 00000000000..db5289737f9 --- /dev/null +++ b/common/lib/libc/atomic/atomic_add_8_cas.c @@ -0,0 +1,63 @@ +/* $NetBSD: atomic_add_8_cas.c,v 1.2 2014/02/21 15:51:07 martin 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. + * + * 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_namespace.h" + +#include <sys/atomic.h> + +uint8_t fetch_and_add_1(volatile uint8_t *, uint8_t, ...) + asm("__sync_fetch_and_add_1"); +uint8_t add_and_fetch_1(volatile uint8_t *, uint8_t, ...) + asm("__sync_add_and_fetch_1"); + +uint8_t +fetch_and_add_1(volatile uint8_t *addr, uint8_t val, ...) +{ + uint8_t old, new; + + do { + old = *addr; + new = old + val; + } while (atomic_cas_8(addr, old, new) != old); + return old; +} + +uint8_t +add_and_fetch_1(volatile uint8_t *addr, uint8_t val, ...) +{ + uint8_t old, new; + + do { + old = *addr; + new = old + val; + } while (atomic_cas_8(addr, old, new) != old); + return new; +} diff --git a/common/lib/libc/atomic/atomic_and_16_cas.c b/common/lib/libc/atomic/atomic_and_16_cas.c new file mode 100644 index 00000000000..d24d7feb219 --- /dev/null +++ b/common/lib/libc/atomic/atomic_and_16_cas.c @@ -0,0 +1,49 @@ +/* $NetBSD: atomic_and_16_cas.c,v 1.2 2014/02/21 15:51:07 martin 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. + * + * 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_namespace.h" + +#include <sys/atomic.h> + +uint16_t fetch_and_and_2(volatile uint16_t *, uint16_t, ...) + asm("__sync_fetch_and_and_2"); + +uint16_t +fetch_and_and_2(volatile uint16_t *addr, uint16_t val, ...) +{ + uint16_t old, new; + + do { + old = *addr; + new = old & val; + } while (atomic_cas_16(addr, old, new) != old); + return old; +} diff --git a/common/lib/libc/atomic/atomic_and_8_cas.c b/common/lib/libc/atomic/atomic_and_8_cas.c new file mode 100644 index 00000000000..a9cdfe4a85f --- /dev/null +++ b/common/lib/libc/atomic/atomic_and_8_cas.c @@ -0,0 +1,49 @@ +/* $NetBSD: atomic_and_8_cas.c,v 1.2 2014/02/21 15:51:07 martin 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. + * + * 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_namespace.h" + +#include <sys/atomic.h> + +uint8_t fetch_and_and_1(volatile uint8_t *, uint8_t, ...) + asm("__sync_fetch_and_and_1"); + +uint8_t +fetch_and_and_1(volatile uint8_t *addr, uint8_t val, ...) +{ + uint8_t old, new; + + do { + old = *addr; + new = old & val; + } while (atomic_cas_8(addr, old, new) != old); + return old; +} diff --git a/common/lib/libc/atomic/atomic_cas_16_cas.c b/common/lib/libc/atomic/atomic_cas_16_cas.c new file mode 100644 index 00000000000..e1b6be3618f --- /dev/null +++ b/common/lib/libc/atomic/atomic_cas_16_cas.c @@ -0,0 +1,45 @@ +/* $NetBSD: atomic_cas_16_cas.c,v 1.2 2014/02/21 15:51:07 martin Exp $ */ + +/*- + * Copyright (c) 2014 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. + * + * 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. + */ + +#if !defined(_KERNEL) && !defined(_STANDALONE) +#include <stdbool.h> +#endif +#include <sys/atomic.h> + +bool bool_compare_and_swap_2(volatile uint16_t *, uint16_t, uint16_t, ...) + asm("__sync_bool_compare_and_swap_2"); + +bool +bool_compare_and_swap_2(volatile uint16_t *addr, uint16_t oldval, + uint16_t newval, ...) +{ + return atomic_cas_16(addr, oldval, newval) == oldval; +} diff --git a/common/lib/libc/atomic/atomic_cas_8_cas.c b/common/lib/libc/atomic/atomic_cas_8_cas.c new file mode 100644 index 00000000000..b6f35c456e1 --- /dev/null +++ b/common/lib/libc/atomic/atomic_cas_8_cas.c @@ -0,0 +1,45 @@ +/* $NetBSD: atomic_cas_8_cas.c,v 1.2 2014/02/21 15:51:07 martin Exp $ */ + +/*- + * Copyright (c) 2014 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. + * + * 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. + */ + +#if !defined(_KERNEL) && !defined(_STANDALONE) +#include <stdbool.h> +#endif +#include <sys/atomic.h> + +bool bool_compare_and_swap_1(volatile uint8_t *, uint8_t, uint8_t, ...) + asm("__sync_bool_compare_and_swap_1"); + +bool +bool_compare_and_swap_1(volatile uint8_t *addr, uint8_t oldval, + uint8_t newval, ...) +{ + return atomic_cas_8(addr, oldval, newval) == oldval; +} diff --git a/common/lib/libc/atomic/atomic_nand_16_cas.c b/common/lib/libc/atomic/atomic_nand_16_cas.c new file mode 100644 index 00000000000..d98c620a24c --- /dev/null +++ b/common/lib/libc/atomic/atomic_nand_16_cas.c @@ -0,0 +1,61 @@ +/* $NetBSD: atomic_nand_16_cas.c,v 1.1 2014/02/21 15:51:07 martin Exp $ */ + +/*- + * Copyright (c) 2014 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. + * + * 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 <sys/atomic.h> + +uint16_t fetch_and_nand_2(volatile uint16_t *, uint16_t, ...) + asm("__sync_fetch_and_nand_2"); +uint16_t nand_and_fetch_2(volatile uint16_t *, uint16_t, ...) + asm("__sync_nand_and_fetch_2"); + +uint16_t +fetch_and_nand_2(volatile uint16_t *addr, uint16_t val, ...) +{ + uint16_t old, new; + + do { + old = *addr; + new = ~(old & val); + } while (atomic_cas_16(addr, old, new) != old); + return old; +} + +uint16_t +nand_and_fetch_2(volatile uint16_t *addr, uint16_t val, ...) +{ + uint16_t old, new; + + do { + old = *addr; + new = ~(old & val); + } while (atomic_cas_16(addr, old, new) != old); + return new; +} diff --git a/common/lib/libc/atomic/atomic_nand_8_cas.c b/common/lib/libc/atomic/atomic_nand_8_cas.c new file mode 100644 index 00000000000..ca178e00e99 --- /dev/null +++ b/common/lib/libc/atomic/atomic_nand_8_cas.c @@ -0,0 +1,61 @@ +/* $NetBSD: atomic_nand_8_cas.c,v 1.1 2014/02/21 15:51:07 martin Exp $ */ + +/*- + * Copyright (c) 2014 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. + * + * 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 <sys/atomic.h> + +uint8_t fetch_and_nand_1(volatile uint8_t *, uint8_t, ...) + asm("__sync_fetch_and_nand_1"); +uint8_t nand_and_fetch_1(volatile uint8_t *, uint8_t, ...) + asm("__sync_nand_and_fetch_1"); + +uint8_t +fetch_and_nand_1(volatile uint8_t *addr, uint8_t val, ...) +{ + uint8_t old, new; + + do { + old = *addr; + new = ~(old & val); + } while (atomic_cas_8(addr, old, new) != old); + return old; +} + +uint8_t +nand_and_fetch_1(volatile uint8_t *addr, uint8_t val, ...) +{ + uint8_t old, new; + + do { + old = *addr; + new = ~(old & val); + } while (atomic_cas_8(addr, old, new) != old); + return new; +} diff --git a/common/lib/libc/atomic/atomic_op_namespace.h b/common/lib/libc/atomic/atomic_op_namespace.h index 5bf410e2908..a97f04f706e 100644 --- a/common/lib/libc/atomic/atomic_op_namespace.h +++ b/common/lib/libc/atomic/atomic_op_namespace.h @@ -1,4 +1,4 @@ -/* $NetBSD: atomic_op_namespace.h,v 1.4 2008/06/23 10:33:52 ad Exp $ */ +/* $NetBSD: atomic_op_namespace.h,v 1.5 2014/02/21 15:51:07 martin Exp $ */ /*- * Copyright (c) 2007, 2008 The NetBSD Foundation, Inc. @@ -73,6 +73,8 @@ #define atomic_cas_ulong _atomic_cas_ulong #define atomic_cas_ptr _atomic_cas_ptr #define atomic_cas_64 _atomic_cas_64 +#define atomic_cas_16 _atomic_cas_16 +#define atomic_cas_8 _atomic_cas_8 #define atomic_cas_32_ni _atomic_cas_32_ni #define atomic_cas_uint_ni _atomic_cas_uint_ni diff --git a/common/lib/libc/atomic/atomic_or_16_cas.c b/common/lib/libc/atomic/atomic_or_16_cas.c new file mode 100644 index 00000000000..fd94b7cd226 --- /dev/null +++ b/common/lib/libc/atomic/atomic_or_16_cas.c @@ -0,0 +1,64 @@ +/* $NetBSD: atomic_or_16_cas.c,v 1.2 2014/02/21 15:51:07 martin 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. + * + * 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_namespace.h" + +#include <sys/atomic.h> + +uint16_t fetch_and_or_2(volatile uint16_t *, uint16_t, ...) + asm("__sync_fetch_and_or_2"); +uint16_t or_and_fetch_2(volatile uint16_t *, uint16_t, ...) + asm("__sync_or_and_fetch_2"); + +uint16_t +fetch_and_or_2(volatile uint16_t *addr, uint16_t val, ...) +{ + uint16_t old, new; + + do { + old = *addr; + new = old | val; + } while (atomic_cas_16(addr, old, new) != old); + return old; +} + +uint16_t +or_and_fetch_2(volatile uint16_t *addr, uint16_t val, ...) +{ + uint16_t old, new; + + do { + old = *addr; + new = old | val; + } while (atomic_cas_16(addr, old, new) != old); + return old; +} + diff --git a/common/lib/libc/atomic/atomic_or_8_cas.c b/common/lib/libc/atomic/atomic_or_8_cas.c new file mode 100644 index 00000000000..7324e84c3df --- /dev/null +++ b/common/lib/libc/atomic/atomic_or_8_cas.c @@ -0,0 +1,64 @@ +/* $NetBSD: atomic_or_8_cas.c,v 1.2 2014/02/21 15:51:07 martin 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. + * + * 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_namespace.h" + +#include <sys/atomic.h> + +uint8_t fetch_and_or_1(volatile uint8_t *, uint8_t, ...) + asm("__sync_fetch_and_or_1"); +uint8_t or_and_fetch_1(volatile uint8_t *, uint8_t, ...) + asm("__sync_or_and_fetch_1"); + +uint8_t +fetch_and_or_1(volatile uint8_t *addr, uint8_t val, ...) +{ + uint8_t old, new; + + do { + old = *addr; + new = old | val; + } while (atomic_cas_8(addr, old, new) != old); + return old; +} + +uint8_t +or_and_fetch_1(volatile uint8_t *addr, uint8_t val, ...) +{ + uint8_t old, new; + + do { + old = *addr; + new = old | val; + } while (atomic_cas_8(addr, old, new) != old); + return old; +} + diff --git a/common/lib/libc/atomic/atomic_sub_16_cas.c b/common/lib/libc/atomic/atomic_sub_16_cas.c new file mode 100644 index 00000000000..434418d4bf4 --- /dev/null +++ b/common/lib/libc/atomic/atomic_sub_16_cas.c @@ -0,0 +1,61 @@ +/* $NetBSD: atomic_sub_16_cas.c,v 1.1 2014/02/21 15:51:07 martin Exp $ */ + +/*- + * Copyright (c) 2014 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. + * + * 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 <sys/atomic.h> + +uint16_t fetch_and_sub_2(volatile uint16_t *, uint16_t, ...) + asm("__sync_fetch_and_sub_2"); +uint16_t sub_and_fetch_2(volatile uint16_t *, uint16_t, ...) + asm("__sync_sub_and_fetch_2"); + +uint16_t +fetch_and_sub_2(volatile uint16_t *addr, uint16_t val, ...) +{ + uint16_t old, new; + + do { + old = *addr; + new = old - val; + } while (atomic_cas_16(addr, old, new) != old); + return old; +} + +uint16_t +sub_and_fetch_2(volatile uint16_t *addr, uint16_t val, ...) +{ + uint16_t old, new; + + do { + old = *addr; + new = old - val; + } while (atomic_cas_16(addr, old, new) != old); + return new; +} diff --git a/common/lib/libc/atomic/atomic_sub_8_cas.c b/common/lib/libc/atomic/atomic_sub_8_cas.c new file mode 100644 index 00000000000..03f3a320a98 --- /dev/null +++ b/common/lib/libc/atomic/atomic_sub_8_cas.c @@ -0,0 +1,61 @@ +/* $NetBSD: atomic_sub_8_cas.c,v 1.1 2014/02/21 15:51:07 martin Exp $ */ + +/*- + * Copyright (c) 2014 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. + * + * 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 <sys/atomic.h> + +uint8_t fetch_and_sub_1(volatile uint8_t *, uint8_t, ...) + asm("__sync_fetch_and_sub_1"); +uint8_t sub_and_fetch_1(volatile uint8_t *, uint8_t, ...) + asm("__sync_sub_and_fetch_1"); + +uint8_t +fetch_and_sub_1(volatile uint8_t *addr, uint8_t val, ...) +{ + uint8_t old, new; + + do { + old = *addr; + new = old - val; + } while (atomic_cas_8(addr, old, new) != old); + return old; +} + +uint8_t +sub_and_fetch_1(volatile uint8_t *addr, uint8_t val, ...) +{ + uint8_t old, new; + + do { + old = *addr; + new = old - val; + } while (atomic_cas_8(addr, old, new) != old); + return new; +} diff --git a/common/lib/libc/atomic/atomic_swap_16_cas.c b/common/lib/libc/atomic/atomic_swap_16_cas.c new file mode 100644 index 00000000000..fd8fed3a92f --- /dev/null +++ b/common/lib/libc/atomic/atomic_swap_16_cas.c @@ -0,0 +1,50 @@ +/* $NetBSD: atomic_swap_16_cas.c,v 1.2 2014/02/21 15:51:07 martin Exp $ */ + +/*- + * Copyright (c) 2014 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. + * + * 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_namespace.h" + +#include <sys/atomic.h> + +uint16_t +atomic_swap_16(volatile uint16_t *addr, uint16_t new) + asm("__sync_lock_test_and_set_2"); + +uint16_t +atomic_swap_16(volatile uint16_t *addr, uint16_t new) +{ + uint16_t old; + + do { + old = *addr; + } while (atomic_cas_16(addr, old, new) != old); + + return old; +} diff --git a/common/lib/libc/atomic/atomic_swap_8_cas.c b/common/lib/libc/atomic/atomic_swap_8_cas.c new file mode 100644 index 00000000000..cb9e33e2d14 --- /dev/null +++ b/common/lib/libc/atomic/atomic_swap_8_cas.c @@ -0,0 +1,50 @@ +/* $NetBSD: atomic_swap_8_cas.c,v 1.2 2014/02/21 15:51:07 martin Exp $ */ + +/*- + * Copyright (c) 2014 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. + * + * 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_namespace.h" + +#include <sys/atomic.h> + +uint8_t +atomic_swap_8(volatile uint8_t *addr, uint8_t new) + asm("__sync_lock_test_and_set_1"); + +uint8_t +atomic_swap_8(volatile uint8_t *addr, uint8_t new) +{ + uint8_t old; + + do { + old = *addr; + } while (atomic_cas_8(addr, old, new) != old); + + return old; +} diff --git a/common/lib/libc/atomic/atomic_xor_16_cas.c b/common/lib/libc/atomic/atomic_xor_16_cas.c new file mode 100644 index 00000000000..16d1cde5d7e --- /dev/null +++ b/common/lib/libc/atomic/atomic_xor_16_cas.c @@ -0,0 +1,61 @@ +/* $NetBSD: atomic_xor_16_cas.c,v 1.1 2014/02/21 15:51:07 martin Exp $ */ + +/*- + * Copyright (c) 2014 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. + * + * 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 <sys/atomic.h> + +uint16_t fetch_and_xor_2(volatile uint16_t *, uint16_t, ...) + asm("__sync_fetch_and_xor_2"); +uint16_t xor_and_fetch_2(volatile uint16_t *, uint16_t, ...) + asm("__sync_xor_and_fetch_2"); + +uint16_t +fetch_and_xor_2(volatile uint16_t *addr, uint16_t val, ...) +{ + uint16_t old, new; + + do { + old = *addr; + new = old ^ val; + } while (atomic_cas_16(addr, old, new) != old); + return old; +} + +uint16_t +xor_and_fetch_2(volatile uint16_t *addr, uint16_t val, ...) +{ + uint16_t old, new; + + do { + old = *addr; + new = old ^ val; + } while (atomic_cas_16(addr, old, new) != old); + return new; +} diff --git a/common/lib/libc/atomic/atomic_xor_8_cas.c b/common/lib/libc/atomic/atomic_xor_8_cas.c new file mode 100644 index 00000000000..69fde093544 --- /dev/null +++ b/common/lib/libc/atomic/atomic_xor_8_cas.c @@ -0,0 +1,61 @@ +/* $NetBSD: atomic_xor_8_cas.c,v 1.1 2014/02/21 15:51:07 martin Exp $ */ + +/*- + * Copyright (c) 2014 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. + * + * 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 <sys/atomic.h> + +uint8_t fetch_and_xor_1(volatile uint8_t *, uint8_t, ...) + asm("__sync_fetch_and_xor_1"); +uint8_t xor_and_fetch_1(volatile uint8_t *, uint8_t, ...) + asm("__sync_xor_and_fetch_1"); + +uint8_t +fetch_and_xor_1(volatile uint8_t *addr, uint8_t val, ...) +{ + uint8_t old, new; + + do { + old = *addr; + new = old ^ val; + } while (atomic_cas_8(addr, old, new) != old); + return old; +} + +uint8_t +xor_and_fetch_1(volatile uint8_t *addr, uint8_t val, ...) +{ + uint8_t old, new; + + do { + old = *addr; + new = old ^ val; + } while (atomic_cas_8(addr, old, new) != old); + return new; +} |
