xnu-1228.tar.gz

[apple/xnu.git] / osfmk / i386 / lock.h

diff --git a/osfmk/i386/lock.h b/osfmk/i386/lock.h
index 1f11129e74b1514c2e8651b6794fa87b7cb51384..f497a82b2544d7584c8e3d077e96d0b5bae8fb47 100644 (file)
--- a/osfmk/i386/lock.h
+++ b/osfmk/i386/lock.h
@@ -1,23 +1,29 @@
 /*
  * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * 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. 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.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * 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
@@ -89,7 +95,8 @@ typedef struct {
 
 typedef lck_rw_t lock_t;
 
-extern unsigned int LockTimeOut;                       /* Number of hardware ticks of a lock timeout */
+extern unsigned int LockTimeOutTSC;    /* Lock timeout in TSC ticks */
+extern unsigned int LockTimeOut;       /* Lock timeout in absolute time */ 
 
 
 #if defined(__GNUC__)
@@ -180,7 +187,7 @@ atomic_cmpxchg(uint32_t *p, uint32_t old, uint32_t new)
 {
        uint32_t res = old;
 
-       asm volatile(
+       __asm__ volatile(
                "lock;  cmpxchgl        %1,%2;  \n\t"
                "       setz            %%al;   \n\t"
                "       movzbl          %%al,%0"
@@ -226,7 +233,7 @@ static inline void  atomic_decl(volatile long * p, long delta)
 static inline int      atomic_decl_and_test(volatile long * p, long delta)
 {
        uint8_t ret;
-       asm volatile (
+       __asm__ volatile (
                "       lock            \n\t"
                "       subl    %1,%2   \n\t"
                "       sete    %0"