xref: /xnu-10002.81.5/osfmk/kern/spl.c (revision 5e3eaea39dcf651e66cb99ba7d70e32cc4a99587)
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
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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
splhigh(void)37 splhigh(
38 	void)
39 {
40 	return ml_set_interrupts_enabled(FALSE);
41 }
42 
43 __private_extern__ spl_t
splsched(void)44 splsched(
45 	void)
46 {
47 	return ml_set_interrupts_enabled(FALSE);
48 }
49 
50 __private_extern__ spl_t
splclock(void)51 splclock(
52 	void)
53 {
54 	return ml_set_interrupts_enabled(FALSE);
55 }
56 
57 __private_extern__ void
spllo(void)58 spllo(
59 	void)
60 {
61 	(void)ml_set_interrupts_enabled(TRUE);
62 }
63 
64 __private_extern__ void
splx(spl_t l)65 splx(
66 	spl_t l)
67 {
68 	ml_set_interrupts_enabled((boolean_t) l);
69 }
70