bsd/machine/spl.h

   1 /*
   2  * Copyright (c) 2000-2007 Apple 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 #ifndef _BSD_MACHINE_SPL_H_
  29 #define _BSD_MACHINE_SPL_H_
  30
  31 #ifdef KERNEL
  32 #ifndef __ASSEMBLER__
  33
  34 #if !defined(__LP64__) || defined(XNU_KERNEL_PRIVATE)
  35 /*
  36  *      Machine-dependent SPL definitions.
  37  *
  38  */
  39 typedef unsigned        spl_t;
  40
  41 extern unsigned int sploff(void);
  42 extern unsigned int splhigh(void);
  43 extern unsigned int splsched(void);
  44 extern unsigned int splclock(void);
  45 extern unsigned int splpower(void);
  46 extern unsigned int splvm(void);
  47 extern unsigned int splbio(void);
  48 extern unsigned int splimp(void);
  49 extern unsigned int spltty(void);
  50 extern unsigned int splnet(void);
  51 extern unsigned int splsoftclock(void);
  52
  53 extern void     spllo(void);
  54 extern void     spl0(void);
  55 extern void     splon(unsigned int level);
  56 extern void     splx(unsigned int level);
  57 extern void     spln(unsigned int level);
  58 #define splstatclock()  splhigh()
  59
  60 #endif  /* !__LP64__ || XNU_KERNEL_PRIVATE */
  61
  62 #endif /* __ASSEMBLER__ */
  63
  64 #endif /* KERNEL */
  65
  66
  67 #endif /* _BSD_MACHINE_SPL_H_ */