1 files changed, 37 insertions, 0 deletions
diff --git a/sys/arch/i386/include/mplock.h b/sys/arch/i386/include/mplock.h
new file mode 100644
index 00000000000..e1069d94e23
--- /dev/null
+++ b/sys/arch/i386/include/mplock.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2007 Artur Grabowski <art@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _MACHINE_MPLOCK_H_
+#define _MACHINE_MPLOCK_H_
+
+struct __mp_lock {
+	volatile struct cpu_info *mpl_cpu;
+	volatile int	mpl_count;
+};
+
+#ifndef _LOCORE
+
+void __mp_lock_init(struct __mp_lock *);
+void __mp_lock(struct __mp_lock *);
+void __mp_unlock(struct __mp_lock *);
+int __mp_release_all(struct __mp_lock *);
+int __mp_release_all_but_one(struct __mp_lock *);
+void __mp_acquire_count(struct __mp_lock *, int);
+int __mp_lock_held(struct __mp_lock *);
+
+#endif
+
+#endif