From 580dd051eacfdde49ae9bc3214afc989f3c519b5 Mon Sep 17 00:00:00 2001
From: David Gwynne <dlg@cvs.openbsd.org>
Date: Wed, 11 Feb 2015 03:56:01 +0000
Subject: the only user of __cpu_cas is lock_machdep, so move it there.

machine/lock.h only provides SPINLOCK_SPIN_HOOK which is included
directly by the three files that use it.
---
 sys/arch/alpha/alpha/lock_machdep.c | 43 +++++++++++++++++++++++++++----------
 sys/arch/alpha/include/lock.h       | 25 +--------------------
 2 files changed, 33 insertions(+), 35 deletions(-)

diff --git a/sys/arch/alpha/alpha/lock_machdep.c b/sys/arch/alpha/alpha/lock_machdep.c
index 91be2bb6970..36cd7dab6ee 100644
--- a/sys/arch/alpha/alpha/lock_machdep.c
+++ b/sys/arch/alpha/alpha/lock_machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: lock_machdep.c,v 1.2 2015/02/11 01:10:48 dlg Exp $	*/
+/*	$OpenBSD: lock_machdep.c,v 1.3 2015/02/11 03:56:00 dlg Exp $	*/
 
 /*
  * Copyright (c) 2007 Artur Grabowski <art@openbsd.org>
@@ -18,31 +18,52 @@
 
 
 #include <sys/param.h>
-#include <sys/lock.h>
 #include <sys/systm.h>
 
 #include <machine/atomic.h>
 #include <machine/cpu.h>
 #include <machine/lock.h>
 
-#include <ddb/db_output.h>
-
-void
-__mp_lock_init(struct __mp_lock *lock)
-{
-	lock->mpl_cpu = NULL;
-	lock->mpl_count = 0;
-}
-
 #if defined(MP_LOCKDEBUG)
 #ifndef DDB
 #error "MP_LOCKDEBUG requires DDB"
 #endif
+#include <ddb/db_output.h>
 
 /* CPU-dependent timing, needs this to be settable from ddb. */
 extern int __mp_lock_spinout;
 #endif
 
+static inline int
+__cpu_cas(volatile unsigned long *addr, unsigned long old, unsigned long new)
+{
+	unsigned long t0, v0;
+
+	__asm volatile(
+		"1:	ldq_l	%1, 0(%2)	\n"	/* v0 = *addr */
+		"	cmpeq	%1, %3, %0	\n"	/* t0 = v0 == old */
+		"	beq	%0, 2f		\n"
+		"	mov	%4, %0		\n"	/* t0 = new */
+		"	stq_c	%0, 0(%2)	\n"	/* *addr = new */
+		"	beq	%0, 3f		\n"
+		"	mb			\n"
+		"2:	br	4f		\n"
+		"3:	br	1b		\n"	/* update failed */
+		"4:				\n"
+		: "=&r" (t0), "=&r" (v0)
+		: "r" (addr), "r" (old), "r" (new)
+		: "memory");
+
+	return (v0 != old);
+}
+
+void
+__mp_lock_init(struct __mp_lock *lock)
+{
+	lock->mpl_cpu = NULL;
+	lock->mpl_count = 0;
+}
+
 static inline void
 __mp_lock_spin(struct __mp_lock *mpl)
 {
diff --git a/sys/arch/alpha/include/lock.h b/sys/arch/alpha/include/lock.h
index e40761990d2..3ef8a5cb550 100644
--- a/sys/arch/alpha/include/lock.h
+++ b/sys/arch/alpha/include/lock.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: lock.h,v 1.8 2015/02/11 00:14:11 dlg Exp $	*/
+/* $OpenBSD: lock.h,v 1.9 2015/02/11 03:56:00 dlg Exp $	*/
 /* $NetBSD: lock.h,v 1.16 2001/12/17 23:34:57 thorpej Exp $ */
 
 /*-
@@ -61,27 +61,4 @@ do {									\
 } while (0)
 #endif /* MULTIPROCESSOR */
 
-static inline int
-__cpu_cas(volatile unsigned long *addr, unsigned long old, unsigned long new)
-{
-	unsigned long t0, v0;
-
-	__asm volatile(
-		"1:	ldq_l	%1, 0(%2)	\n"	/* v0 = *addr */
-		"	cmpeq	%1, %3, %0	\n"	/* t0 = v0 == old */
-		"	beq	%0, 2f		\n"
-		"	mov	%4, %0		\n"	/* t0 = new */
-		"	stq_c	%0, 0(%2)	\n"	/* *addr = new */
-		"	beq	%0, 3f		\n"
-		"	mb			\n"
-		"2:	br	4f		\n"
-		"3:	br	1b		\n"	/* update failed */
-		"4:				\n"
-		: "=&r" (t0), "=&r" (v0)
-		: "r" (addr), "r" (old), "r" (new)
-		: "memory");
-
-	return (v0 != old);
-}
-
 #endif /* _MACHINE_LOCK_H_ */
-- 
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