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[src/trunk]: src/common/lib/libc/atomic Provide 8 and 16 bit sync ops (using ...
details: https://anonhg.NetBSD.org/src/rev/72344e85a8cc
branches: trunk
changeset: 326891:72344e85a8cc
user: martin <martin%NetBSD.org@localhost>
date: Fri Feb 21 15:51:07 2014 +0000
description:
Provide 8 and 16 bit sync ops (using 16 bit and 8 bit cas)
diffstat:
common/lib/libc/atomic/atomic_add_16_cas.c | 63 +++++++++++++++++++++++++++
common/lib/libc/atomic/atomic_add_8_cas.c | 63 +++++++++++++++++++++++++++
common/lib/libc/atomic/atomic_and_16_cas.c | 49 +++++++++++++++++++++
common/lib/libc/atomic/atomic_and_8_cas.c | 49 +++++++++++++++++++++
common/lib/libc/atomic/atomic_cas_16_cas.c | 45 +++++++++++++++++++
common/lib/libc/atomic/atomic_cas_8_cas.c | 45 +++++++++++++++++++
common/lib/libc/atomic/atomic_nand_16_cas.c | 61 ++++++++++++++++++++++++++
common/lib/libc/atomic/atomic_nand_8_cas.c | 61 ++++++++++++++++++++++++++
common/lib/libc/atomic/atomic_op_namespace.h | 4 +-
common/lib/libc/atomic/atomic_or_16_cas.c | 64 ++++++++++++++++++++++++++++
common/lib/libc/atomic/atomic_or_8_cas.c | 64 ++++++++++++++++++++++++++++
common/lib/libc/atomic/atomic_sub_16_cas.c | 61 ++++++++++++++++++++++++++
common/lib/libc/atomic/atomic_sub_8_cas.c | 61 ++++++++++++++++++++++++++
common/lib/libc/atomic/atomic_swap_16_cas.c | 50 +++++++++++++++++++++
common/lib/libc/atomic/atomic_swap_8_cas.c | 50 +++++++++++++++++++++
common/lib/libc/atomic/atomic_xor_16_cas.c | 61 ++++++++++++++++++++++++++
common/lib/libc/atomic/atomic_xor_8_cas.c | 61 ++++++++++++++++++++++++++
17 files changed, 911 insertions(+), 1 deletions(-)
diffs (truncated from 990 to 300 lines):
diff -r 19d54906bf4d -r 72344e85a8cc common/lib/libc/atomic/atomic_add_16_cas.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/common/lib/libc/atomic/atomic_add_16_cas.c Fri Feb 21 15:51:07 2014 +0000
@@ -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 -r 19d54906bf4d -r 72344e85a8cc common/lib/libc/atomic/atomic_add_8_cas.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/common/lib/libc/atomic/atomic_add_8_cas.c Fri Feb 21 15:51:07 2014 +0000
@@ -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 -r 19d54906bf4d -r 72344e85a8cc common/lib/libc/atomic/atomic_and_16_cas.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/common/lib/libc/atomic/atomic_and_16_cas.c Fri Feb 21 15:51:07 2014 +0000
@@ -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 -r 19d54906bf4d -r 72344e85a8cc common/lib/libc/atomic/atomic_and_8_cas.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/common/lib/libc/atomic/atomic_and_8_cas.c Fri Feb 21 15:51:07 2014 +0000
@@ -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 -r 19d54906bf4d -r 72344e85a8cc common/lib/libc/atomic/atomic_cas_16_cas.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/common/lib/libc/atomic/atomic_cas_16_cas.c Fri Feb 21 15:51:07 2014 +0000
@@ -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 -r 19d54906bf4d -r 72344e85a8cc common/lib/libc/atomic/atomic_cas_8_cas.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/common/lib/libc/atomic/atomic_cas_8_cas.c Fri Feb 21 15:51:07 2014 +0000
@@ -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
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