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psl.h revision 1.1 
      1 /*
      2  * Copyright (c) 1992 Regents of the University of California.
      3  * All rights reserved.
      4  *
      5  * This code is derived from software contributed to Berkeley by
      6  * Ralph Campbell.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *	This product includes software developed by the University of
     19  *	California, Berkeley and its contributors.
     20  * 4. Neither the name of the University nor the names of its contributors
     21  *    may be used to endorse or promote products derived from this software
     22  *    without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  *
     36  * from: @(#)psl.h	7.2 (Berkeley) 10/11/92
     37  * $Id: psl.h,v 1.1 1993/10/12 03:22:40 deraadt Exp $
     38  */
     39 
     40 #include <machine/machConst.h>
     41 
     42 #define	PSL_LOWIPL	(MACH_INT_MASK | MACH_SR_INT_ENA_CUR)
     43 
     44 #define	PSL_USERSET (	\
     45 	MACH_SR_KU_OLD |	\
     46 	MACH_SR_INT_ENA_OLD |	\
     47 	MACH_SR_KU_PREV |	\
     48 	MACH_SR_INT_ENA_PREV |	\
     49 	MACH_INT_MASK)
     50 
     51 #define	PSL_USERCLR (	\
     52 	MACH_SR_COP_USABILITY |	\
     53 	MACH_SR_BOOT_EXC_VEC |	\
     54 	MACH_SR_TLB_SHUTDOWN |	\
     55 	MACH_SR_PARITY_ERR |	\
     56 	MACH_SR_CACHE_MISS |	\
     57 	MACH_SR_PARITY_ZERO |	\
     58 	MACH_SR_SWAP_CACHES |	\
     59 	MACH_SR_ISOL_CACHES |	\
     60 	MACH_SR_KU_CUR |	\
     61 	MACH_SR_INT_ENA_CUR |	\
     62 	MACH_SR_MBZ)
     63 
     64 /*
     65  * Macros to decode processor status word.
     66  */
     67 #define	USERMODE(ps)	((ps) & MACH_SR_KU_PREV)
     68 #define	BASEPRI(ps)	(((ps) & (MACH_INT_MASK | MACH_SR_INT_ENA_PREV)) \
     69 			== (MACH_INT_MASK | MACH_SR_INT_ENA_PREV))
     70