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psl.h revision 1.1.1.2 
      1 /*      $OpenBSD: psl.h,v 1.1.1.1 1996/06/24 09:07:18 pefo Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1992, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * This code is derived from software contributed to Berkeley by
      8  * Ralph Campbell.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the University of
     21  *	California, Berkeley and its contributors.
     22  * 4. Neither the name of the University nor the names of its contributors
     23  *    may be used to endorse or promote products derived from this software
     24  *    without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  *
     38  *	from: @(#)psl.h	8.1 (Berkeley) 6/10/93
     39  */
     40 
     41 #include <machine/cpu.h>
     42 
     43 #define	PSL_LOWIPL	(INT_MASK | SR_INT_ENAB)
     44 
     45 #define	PSL_USERSET (	\
     46 	SR_KSU_USER |	\
     47 	SR_INT_ENAB |	\
     48 	SR_EXL      |	\
     49 	INT_MASK)
     50 
     51 #define	PSL_USERCLR (	\
     52 	SR_COP_USABILITY |	\
     53 	SR_BOOT_EXC_VEC |	\
     54 	SR_TLB_SHUTDOWN |	\
     55 	SR_PARITY_ERR |	\
     56 	SR_CACHE_MISS |	\
     57 	SR_PARITY_ZERO |	\
     58 	SR_SWAP_CACHES |	\
     59 	SR_ISOL_CACHES |	\
     60 	SR_KU_CUR |	\
     61 	SR_INT_ENA_CUR |	\
     62 	SR_MBZ)
     63 
     64 /*
     65  * Macros to decode processor status word.
     66  */
     67 #define	USERMODE(ps)	(((ps) & SR_KSU_MASK) == SR_KSU_USER)
     68 #define	BASEPRI(ps)	(((ps) & (INT_MASK | SR_INT_ENA_PREV)) \
     69 			== (INT_MASK | SR_INT_ENA_PREV))
     70