1  /*
 2   * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 3   *
 4   * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 5   *
 6   * This file contains Original Code and/or Modifications of Original Code
 7   * as defined in and that are subject to the Apple Public Source License
 8   * Version 2.0 (the 'License'). You may not use this file except in
 9   * compliance with the License. The rights granted to you under the License
10   * may not be used to create, or enable the creation or redistribution of,
11   * unlawful or unlicensed copies of an Apple operating system, or to
12   * circumvent, violate, or enable the circumvention or violation of, any
13   * terms of an Apple operating system software license agreement.
14   *
15   * Please obtain a copy of the License at
16   * http://www.opensource.apple.com/apsl/ and read it before using this file.
17   *
18   * The Original Code and all software distributed under the License are
19   * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20   * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21   * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22   * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23   * Please see the License for the specific language governing rights and
24   * limitations under the License.
25   *
26   * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27   */
28  #include <kern/thread.h>
29  #include <kern/spl.h>
30  #include <machine/machine_routines.h>
31  
32  /*
33   *  spl routines
34   */
35  
36  __private_extern__ spl_t
37  splhigh(
38  	void)
39  {
40  	return ml_set_interrupts_enabled(FALSE);
41  }
42  
43  __private_extern__ spl_t
44  splsched(
45  	void)
46  {
47  	return ml_set_interrupts_enabled(FALSE);
48  }
49  
50  __private_extern__ spl_t
51  splclock(
52  	void)
53  {
54  	return ml_set_interrupts_enabled(FALSE);
55  }
56  
57  __private_extern__ void
58  spllo(
59  	void)
60  {
61  	(void)ml_set_interrupts_enabled(TRUE);
62  }
63  
64  __private_extern__ void
65  splx(
66  	spl_t l)
67  {
68  	ml_set_interrupts_enabled((boolean_t) l);
69  }