X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/55e303ae13a4cf49d70f2294092726f2fffb9ef2..36401178fd6817c043cc00b0c00c7f723e58efae:/iokit/IOKit/ppc/IOSharedLockImp.h?ds=sidebyside

diff --git a/iokit/IOKit/ppc/IOSharedLockImp.h b/iokit/IOKit/ppc/IOSharedLockImp.h
index c6c062fd5..8c685b223 100644
--- a/iokit/IOKit/ppc/IOSharedLockImp.h
+++ b/iokit/IOKit/ppc/IOSharedLockImp.h
@@ -1,16 +1,19 @@
 /*
  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
  * 
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
@@ -20,7 +23,7 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * Copyright (c) 1998 Apple Computer, Inc.  All rights reserved. 
@@ -57,33 +60,6 @@
 #include <mach/ppc/asm.h>
 #endif
 
-.macro DISABLE_PREEMPTION
-#ifdef KERNEL
-	stwu	r1,-(FM_SIZE)(r1)
-	mflr	r0
-	stw		r3,FM_ARG0(r1)
-	stw		r0,(FM_SIZE+FM_LR_SAVE)(r1)
-	bl		EXT(_disable_preemption)
-	lwz		r3,FM_ARG0(r1)
-	lwz		r1,0(r1)
-	lwz		r0,FM_LR_SAVE(r1)
-	mtlr	r0
-#endif
-.endmacro
-.macro ENABLE_PREEMPTION
-#ifdef KERNEL
-	stwu	r1,-(FM_SIZE)(r1)
-	mflr	r0
-	stw		r3,FM_ARG0(r1)
-	stw		r0,(FM_SIZE+FM_LR_SAVE)(r1)
-	bl		EXT(_enable_preemption)
-	lwz		r3,FM_ARG0(r1)
-	lwz		r1,0(r1)
-	lwz		r0,FM_LR_SAVE(r1)
-	mtlr	r0
-#endif
-.endmacro
-
 /*
  *	void
  *	ev_lock(p)
@@ -152,7 +128,6 @@ LEAF(_ev_unlock)
 	sync
 	li	a7,0
 	stw	a7,0(a0)
-	ENABLE_PREEMPTION()
 	blr
 END(_ev_unlock)
 
@@ -160,7 +135,6 @@ LEAF(_IOSpinUnlock)
 	sync
 	li	a7,0
 	stw	a7,0(a0)
-	ENABLE_PREEMPTION()
 	blr
 END(_IOSpinUnlock)
 
@@ -173,9 +147,6 @@ END(_IOSpinUnlock)
  */
 
 LEAF(_ev_try_lock)
-	
-		DISABLE_PREEMPTION()
-
 		li		a6,1			// lock value
 		
 		lwz		a7,0(a0)		// Get lock word
@@ -195,16 +166,12 @@ LEAF(_ev_try_lock)
 		stwcx.	a7,a7,r1		// Kill reservation
 
 6:
-		ENABLE_PREEMPTION()
 		li	a0,0				// return FALSE
 		blr
 		
 END(_ev_try_lock)
 
 LEAF(_IOTrySpinLock)
-	
-		DISABLE_PREEMPTION()
-
 		li		a6,1			// lock value
 		
 		lwz		a7,0(a0)		// Get lock word
@@ -224,7 +191,6 @@ LEAF(_IOTrySpinLock)
 		stwcx.	a7,a7,r1		// Kill reservation
 
 6:
-		ENABLE_PREEMPTION()
 		li	a0,0				// return FALSE
 		blr