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authormartin <martin@NetBSD.org>2014-02-21 15:51:07 +0000
committermartin <martin@NetBSD.org>2014-02-21 15:51:07 +0000
commit3fef615a3671cda31497cbf59e4e3cd9f71705f0 (patch)
tree9e7319ca802b21f8e3ab71798a6246436e6d3160 /common/lib/libc
parentb9adaf0b20ac0ef5e78e03ac592bbb8e0f6f5af8 (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.c63
-rw-r--r--common/lib/libc/atomic/atomic_add_8_cas.c63
-rw-r--r--common/lib/libc/atomic/atomic_and_16_cas.c49
-rw-r--r--common/lib/libc/atomic/atomic_and_8_cas.c49
-rw-r--r--common/lib/libc/atomic/atomic_cas_16_cas.c45
-rw-r--r--common/lib/libc/atomic/atomic_cas_8_cas.c45
-rw-r--r--common/lib/libc/atomic/atomic_nand_16_cas.c61
-rw-r--r--common/lib/libc/atomic/atomic_nand_8_cas.c61
-rw-r--r--common/lib/libc/atomic/atomic_op_namespace.h4
-rw-r--r--common/lib/libc/atomic/atomic_or_16_cas.c64
-rw-r--r--common/lib/libc/atomic/atomic_or_8_cas.c64
-rw-r--r--common/lib/libc/atomic/atomic_sub_16_cas.c61
-rw-r--r--common/lib/libc/atomic/atomic_sub_8_cas.c61
-rw-r--r--common/lib/libc/atomic/atomic_swap_16_cas.c50
-rw-r--r--common/lib/libc/atomic/atomic_swap_8_cas.c50
-rw-r--r--common/lib/libc/atomic/atomic_xor_16_cas.c61
-rw-r--r--common/lib/libc/atomic/atomic_xor_8_cas.c61
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;
+}