[src/trunk]: src/sys Move the riscv lock.h which uses only compiler builtin a...

[matt <matt%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/7fbcac14f6d8
branches:  trunk
changeset: 339089:7fbcac14f6d8
user:      matt <matt%NetBSD.org@localhost>
date:      Fri Jun 26 14:27:35 2015 +0000

description:
Move the riscv lock.h which uses only compiler builtin atomic primitives
to a common location which can be used by others and make riscv's lock.h
use it.

diffstat:

 sys/arch/riscv/include/lock.h |  101 +----------------------------------------
 sys/sys/common_lock.h         |  102 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 104 insertions(+), 99 deletions(-)

diffs (212 lines):

diff -r 6347579906fc -r 7fbcac14f6d8 sys/arch/riscv/include/lock.h
--- a/sys/arch/riscv/include/lock.h     Fri Jun 26 14:26:38 2015 +0000
+++ b/sys/arch/riscv/include/lock.h     Fri Jun 26 14:27:35 2015 +0000
@@ -1,100 +1,3 @@
-/* $NetBSD: lock.h,v 1.3 2015/06/26 14:20:11 matt Exp $ */
-
-/*-
- * Copyright (c) 2014 The NetBSD Foundation, Inc.
- * All rights reserved.
- *
- * This code is derived from software contributed to The NetBSD Foundation
- * by Matt Thomas of 3am Software Foundry.
- *
- * 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.
- */
-/*
- * Machine-dependent spin lock operations.
- */
-
-#ifndef _RISCV_LOCK_H_
-#define        _RISCV_LOCK_H_
-
-static __inline int
-__SIMPLELOCK_LOCKED_P(__cpu_simple_lock_t *__ptr)
-{
-       return *__ptr != __SIMPLELOCK_UNLOCKED;
-}
-
-static __inline int
-__SIMPLELOCK_UNLOCKED_P(__cpu_simple_lock_t *__ptr)
-{
-       return *__ptr == __SIMPLELOCK_UNLOCKED;
-}
+/* $NetBSD: lock.h,v 1.4 2015/06/26 14:27:35 matt Exp $ */
 
-static __inline void
-__cpu_simple_lock_clear(__cpu_simple_lock_t *__ptr)
-{
-#if 1
-       *__ptr = __SIMPLELOCK_UNLOCKED;
-#else
-       __atomic_store_n(__ptr, __SIMPLELOCK_UNLOCKED, __ATOMIC_RELAXED);
-#endif
-}
-
-static __inline void
-__cpu_simple_lock_set(__cpu_simple_lock_t *__ptr)
-{
-#if 1
-       *__ptr = __SIMPLELOCK_LOCKED;
-#else
-       __atomic_store_n(__ptr, __SIMPLELOCK_LOCKED, __ATOMIC_RELAXED);
-#endif
-}
-
-static __inline void __unused
-__cpu_simple_lock_init(__cpu_simple_lock_t *__ptr)
-{
-#if 1
-       *__ptr = __SIMPLELOCK_UNLOCKED;
-#else
-       __atomic_store_n(__ptr, __SIMPLELOCK_UNLOCKED, __ATOMIC_RELAXED);
-#endif
-}
-
-static __inline void __unused
-__cpu_simple_lock(__cpu_simple_lock_t *__ptr)
-{
-       while (__atomic_exchange_n(__ptr, __SIMPLELOCK_LOCKED, __ATOMIC_ACQUIRE) == __SIMPLELOCK_LOCKED) {
-               /* do nothing */
-       }
-}
-
-static __inline int __unused
-__cpu_simple_lock_try(__cpu_simple_lock_t *__ptr)
-{
-       return __atomic_exchange_n(__ptr, __SIMPLELOCK_LOCKED, __ATOMIC_ACQUIRE) == __SIMPLELOCK_UNLOCKED;
-}
-
-static __inline void __unused
-__cpu_simple_unlock(__cpu_simple_lock_t *__ptr)
-{
-       __atomic_store_n(__ptr, __SIMPLELOCK_UNLOCKED, __ATOMIC_RELEASE);
-}
-
-#endif /* _RISCV_LOCK_H_ */
+#include <sys/common_lock.h>
diff -r 6347579906fc -r 7fbcac14f6d8 sys/sys/common_lock.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/sys/common_lock.h     Fri Jun 26 14:27:35 2015 +0000
@@ -0,0 +1,102 @@
+/* $NetBSD: common_lock.h,v 1.1 2015/06/26 14:27:35 matt Exp $ */
+
+/*-
+ * Copyright (c) 2014 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Matt Thomas of 3am Software Foundry.
+ *
+ * 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.
+ */
+
+/*
+ * Machine-dependent spin lock operations using the builtin compiler atomic
+ * primitives.
+ */
+
+#ifndef _SYS_COMMON_LOCK_H_
+#define        _SYS_COMMON_LOCK_H_
+
+static __inline int
+__SIMPLELOCK_LOCKED_P(__cpu_simple_lock_t *__ptr)
+{
+       return *__ptr != __SIMPLELOCK_UNLOCKED;
+}
+
+static __inline int
+__SIMPLELOCK_UNLOCKED_P(__cpu_simple_lock_t *__ptr)
+{
+       return *__ptr == __SIMPLELOCK_UNLOCKED;
+}
+
+static __inline void
+__cpu_simple_lock_clear(__cpu_simple_lock_t *__ptr)
+{
+#if 1
+       *__ptr = __SIMPLELOCK_UNLOCKED;
+#else
+       __atomic_store_n(__ptr, __SIMPLELOCK_UNLOCKED, __ATOMIC_RELAXED);
+#endif
+}
+
+static __inline void
+__cpu_simple_lock_set(__cpu_simple_lock_t *__ptr)
+{
+#if 1
+       *__ptr = __SIMPLELOCK_LOCKED;
+#else
+       __atomic_store_n(__ptr, __SIMPLELOCK_LOCKED, __ATOMIC_RELAXED);
+#endif
+}
+
+static __inline void __unused
+__cpu_simple_lock_init(__cpu_simple_lock_t *__ptr)
+{
+#if 1
+       *__ptr = __SIMPLELOCK_UNLOCKED;
+#else
+       __atomic_store_n(__ptr, __SIMPLELOCK_UNLOCKED, __ATOMIC_RELAXED);
+#endif
+}
+
+static __inline void __unused
+__cpu_simple_lock(__cpu_simple_lock_t *__ptr)
+{
+       while (__atomic_exchange_n(__ptr, __SIMPLELOCK_LOCKED, __ATOMIC_ACQUIRE) == __SIMPLELOCK_LOCKED) {
+               /* do nothing */
+       }
+}
+
+static __inline int __unused
+__cpu_simple_lock_try(__cpu_simple_lock_t *__ptr)
+{
+       return __atomic_exchange_n(__ptr, __SIMPLELOCK_LOCKED, __ATOMIC_ACQUIRE) == __SIMPLELOCK_UNLOCKED;
+}
+
+static __inline void __unused
+__cpu_simple_unlock(__cpu_simple_lock_t *__ptr)
+{
+       __atomic_store_n(__ptr, __SIMPLELOCK_UNLOCKED, __ATOMIC_RELEASE);
+}
+
+#endif /* _SYS_COMMON_LOCK_H_ */