machspl.h

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    1 /* 
    2  * Mach Operating System
    3  * Copyright (c) 1993,1992,1991,1990 Carnegie Mellon University
    4  * All Rights Reserved.
    5  * 
    6  * Permission to use, copy, modify and distribute this software and its
    7  * documentation is hereby granted, provided that both the copyright
    8  * notice and this permission notice appear in all copies of the
    9  * software, derivative works or modified versions, and any portions
   10  * thereof, and that both notices appear in supporting documentation.
   11  * 
   12  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
   13  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
   14  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
   15  * 
   16  * Carnegie Mellon requests users of this software to return to
   17  * 
   18  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
   19  *  School of Computer Science
   20  *  Carnegie Mellon University
   21  *  Pittsburgh PA 15213-3890
   22  * 
   23  * any improvements or extensions that they make and grant Carnegie Mellon
   24  * the rights to redistribute these changes.
   25  */
   26 /*
   27  * HISTORY
   28  * $Log:        machspl.h,v $
   29  * Revision 2.3  93/11/17  16:36:39  dbg
   30  *      Added prototypes for SPL functions.
   31  *      [93/05/21            dbg]
   32  * 
   33  * Revision 2.2  93/05/15  20:58:58  mrt
   34  *      Used to be machparam.h
   35  *      [93/05/15            mrt]
   36  * 
   37  * Revision 2.5  93/01/14  17:29:17  danner
   38  *      Proper spl typing.
   39  *      [92/11/30            af]
   40  * 
   41  * Revision 2.4  91/05/14  16:11:57  mrt
   42  *      Correcting copyright
   43  * 
   44  * Revision 2.3  91/02/05  17:13:13  mrt
   45  *      Changed to new Mach copyright
   46  *      [91/02/01  17:36:08  mrt]
   47  * 
   48  * Revision 2.2  90/05/03  15:34:01  dbg
   49  *      Created.
   50  *      [90/02/08            dbg]
   51  * 
   52  */
   53 
   54 #ifndef _MACHINE_MACHSPL_H_
   55 #define _MACHINE_MACHSPL_H_ 1
   56 
   57 /*
   58  *      Machine-dependent SPL definitions.
   59  *
   60  *      SPLs are true functions on i386, defined elsewhere.
   61  */
   62 
   63 typedef int     spl_t;
   64 
   65 extern spl_t    spl0(void);
   66 extern spl_t    splbio(void);
   67 extern spl_t    spltty(void);
   68 extern spl_t    splhigh(void);
   69 
   70 #define splsched()      (splhigh())
   71 #define splclock()      (splhigh())
   72 #define splvm()         (splhigh())
   73 #define splimp()        (splhigh())
   74 
   75 extern void     splx(spl_t);
   76 
   77 #endif  /* _MACHINE_MACHSPL_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/i386/machspl.h

FreeBSD/Linux Kernel Cross Reference
sys/i386/machspl.h