Home | History | Annotate | Line # | Download | only in include
psl.h revision 1.6 
      1 /*	$NetBSD: psl.h,v 1.6 1997/06/16 01:10:03 jonathan 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  *	@(#)psl.h	8.1 (Berkeley) 6/10/93
     39  */
     40 
     41 #include <mips/cpuregs.h>
     42 
     43 #ifdef MIPS3		/* OUCH! */
     44 
     45 #define	PSL_LOWIPL	(MACH_INT_MASK | MACH_SR_INT_ENAB)
     46 
     47 #define	PSL_USERSET (	\
     48 	MACH_SR_KSU_USER |	\
     49 	MACH_SR_INT_ENAB |	\
     50 	MACH_SR_EXL |	\
     51 	MACH_INT_MASK)
     52 
     53 #define	PSL_USERCLR (	\
     54 	MACH_SR_COP_USABILITY |	\
     55 	MACH_SR_BOOT_EXC_VEC |	\
     56 	MACH_SR_TLB_SHUTDOWN |	\
     57 	MACH_SR_PARITY_ERR |	\
     58 	MACH_SR_CACHE_MISS |	\
     59 	MACH_SR_PARITY_ZERO |	\
     60 	MACH_SR_SWAP_CACHES |	\
     61 	MACH_SR_ISOL_CACHES |	\
     62 	MACH_SR_KU_CUR |	\
     63 	MACH_SR_INT_ENA_CUR |	\
     64 	MACH_SR_MBZ)
     65 
     66 /*
     67  * Macros to decode processor status word.
     68  */
     69 #define	USERMODE(ps)	(((ps) & MACH_SR_KSU_MASK) == MACH_SR_KSU_USER)
     70 #define	BASEPRI(ps)	(((ps) & (MACH_INT_MASK | MACH_SR_INT_ENA_PREV)) \
     71 			== (MACH_INT_MASK | MACH_SR_INT_ENA_PREV))
     72 #else
     73 
     74 #define	PSL_LOWIPL	(MACH_INT_MASK | MACH_SR_INT_ENA_CUR)
     75 
     76 #define	PSL_USERSET (	\
     77 	MACH_SR_KU_OLD |	\
     78 	MACH_SR_INT_ENA_OLD |	\
     79 	MACH_SR_KU_PREV |	\
     80 	MACH_SR_INT_ENA_PREV |	\
     81 	MACH_INT_MASK)
     82 
     83 #define	PSL_USERCLR (	\
     84 	MACH_SR_COP_USABILITY |	\
     85 	MACH_SR_BOOT_EXC_VEC |	\
     86 	MACH_SR_TLB_SHUTDOWN |	\
     87 	MACH_SR_PARITY_ERR |	\
     88 	MACH_SR_CACHE_MISS |	\
     89 	MACH_SR_PARITY_ZERO |	\
     90 	MACH_SR_SWAP_CACHES |	\
     91 	MACH_SR_ISOL_CACHES |	\
     92 	MACH_SR_KU_CUR |	\
     93 	MACH_SR_INT_ENA_CUR |	\
     94 	MACH_SR_MBZ)
     95 
     96 /*
     97  * Macros to decode processor status word.
     98  */
     99 #define	USERMODE(ps)	((ps) & MACH_SR_KU_PREV)
    100 #define	BASEPRI(ps)	(((ps) & (MACH_INT_MASK | MACH_SR_INT_ENA_PREV)) \
    101 			== (MACH_INT_MASK | MACH_SR_INT_ENA_PREV))
    102 #endif
    103