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- /*
- * Mach Operating System
- * Copyright (c) 1992 Carnegie Mellon University
- * All Rights Reserved.
- *
- * Permission to use, copy, modify and distribute this software and its
- * documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- *
- * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
- * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
- * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * Carnegie Mellon requests users of this software to return to
- *
- * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
- * School of Computer Science
- * Carnegie Mellon University
- * Pittsburgh PA 15213-3890
- *
- * any improvements or extensions that they make and grant Carnegie Mellon
- * the rights to redistribute these changes.
- */
- /*
- * HISTORY
- * $Log: synch.h,v $
- * Revision 2.1 92/04/21 17:15:26 rwd
- * BSDSS
- *
- *
- */
-
- /*
- * SPL level definitions.
- */
- #define SPL_COUNT 6
-
- #define SPL0 0
- /* placeholder - not used */
- #define SPLSOFTCLOCK 1
- /* level '0x8' */
- #define SPLNET 2
- /* level '0xc' */
- #define SPLTTY 3
- /* level '0x15' */
- #define SPLBIO 3
- /* level '0x15' */
- #define SPLIMP 4
- /* level '0x16' */
- #define SPLHIGH 5
- /* level '0x18' */
-
-
- #define spl0() (spl_n(SPL0))
- #define splsoftclock() (spl_n(SPLSOFTCLOCK))
- #define splnet() (spl_n(SPLNET))
- #define splbio() (spl_n(SPLBIO))
- #define spltty() (spl_n(SPLTTY))
- #define splimp() (spl_n(SPLIMP))
- #define splhigh() (spl_n(SPLHIGH))
- #define splx(s) (spl_n(s))
- #define splsched() (spl_n(SPLHIGH))
- #define splvm() (spl_n(SPLIMP))
-
- extern int spl_n();
- extern void interrupt_enter();
- extern void interrupt_exit();
-