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-rw-r--r--rtemsbsd/powerpc/include/linux/spinlock.h65
1 files changed, 65 insertions, 0 deletions
diff --git a/rtemsbsd/powerpc/include/linux/spinlock.h b/rtemsbsd/powerpc/include/linux/spinlock.h
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+++ b/rtemsbsd/powerpc/include/linux/spinlock.h
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+/*-
+ * Copyright (c) 2010 Isilon Systems, Inc.
+ * Copyright (c) 2010 iX Systems, Inc.
+ * Copyright (c) 2010 Panasas, Inc.
+ * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
+ * All rights reserved.
+ *
+ * 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 unmodified, 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 AUTHOR ``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 AUTHOR 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.
+ *
+ * $FreeBSD$
+ */
+#ifndef _LINUX_SPINLOCK_H_
+#define _LINUX_SPINLOCK_H_
+
+#include <sys/lock.h>
+
+#include <linux/compiler.h>
+#include <linux/kernel.h>
+#include <linux/rwlock.h>
+
+typedef struct _Mutex_Control spinlock_t;
+
+#define spin_lock_init(_l) _Mutex_Initialize(_l)
+#define spin_lock(_l) _Mutex_Acquire(_l)
+#define spin_unlock(_l) _Mutex_Release(_l)
+#define spin_lock_irq(_l) spin_lock(_l)
+#define spin_unlock_irq(_l) spin_unlock(_l)
+#define spin_lock_irqsave(_l, _f) \
+ do { (void)_f; spin_lock(_l); } while (0)
+#define spin_unlock_irqrestore(_l, _f) \
+ do { (void)_f; spin_unlock(_l); } while (0)
+
+#define __SPIN_LOCK_UNLOCKED(_l) _MUTEX_INITIALIZER
+
+#define DEFINE_SPINLOCK(_l) spinlock_t _l = __SPIN_LOCK_UNLOCKED(_l)
+
+typedef spinlock_t raw_spinlock_t;
+
+#define raw_spin_lock_init(_l) spin_lock_init(_l)
+#define raw_spin_lock_irqsave(_l, _f) spin_lock_irqsave(_l, _f)
+#define raw_spin_unlock_irqrestore(_l, _f) spin_unlock_irqrestore(_l, _f)
+
+#define local_irq_save(_f) rtems_interrupt_local_disable(_f)
+#define local_irq_restore(_f) rtems_interrupt_local_enable(_f)
+
+#endif /* _LINUX_SPINLOCK_H_ */