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trap.h revision 1.2 
      1 /*	$NetBSD: trap.h,v 1.2 2007/12/22 14:11:10 skrll Exp $	*/
      2 
      3 /*	$OpenBSD: trap.h,v 1.8 2000/02/10 20:05:39 mickey Exp $	*/
      4 
      5 /*
      6  * Copyright (c) 1999 Michael Shalayeff
      7  * All rights reserved.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *      This product includes software developed by Michael Shalayeff.
     20  * 4. The name of the author may not be used to endorse or promote products
     21  *    derived from this software without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     26  * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
     27  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     28  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     29  * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     31  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
     32  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     33  * THE POSSIBILITY OF SUCH DAMAGE.
     34  */
     35 
     36 #ifndef	_HPPA_TRAP_H_
     37 #define	_HPPA_TRAP_H_
     38 
     39 /*
     40  * This is PA-RISC trap types per 1.1 specs, see .c files for references.
     41  */
     42 #define	T_NONEXIST	0	/* invalid interrupt vector */
     43 #define	T_HPMC		1	/* high priority machine check */
     44 #define	T_POWERFAIL	2	/* power failure */
     45 #define	T_RECOVERY	3	/* recovery counter */
     46 #define	T_INTERRUPT	4	/* external interrupt */
     47 #define	T_LPMC		5	/* low-priority machine check */
     48 #define	T_ITLBMISS	6	/* instruction TLB miss fault */
     49 #define	T_IPROT		7	/* instruction protection */
     50 #define	T_ILLEGAL	8	/* Illegal instruction */
     51 #define	T_IBREAK	9	/* break instruction */
     52 #define	T_PRIV_OP	10	/* privileged operation */
     53 #define	T_PRIV_REG	11	/* privileged register */
     54 #define	T_OVERFLOW	12	/* overflow */
     55 #define	T_CONDITION	13	/* conditional */
     56 #define	T_EXCEPTION	14	/* assist exception */
     57 #define	T_DTLBMISS	15	/* data TLB miss */
     58 #define	T_ITLBMISSNA	16	/* ITLB non-access miss */
     59 #define	T_DTLBMISSNA	17	/* DTLB non-access miss */
     60 #define	T_DPROT		18	/* data protection/rights/alignment <7100 */
     61 #define	T_DBREAK	19	/* data break */
     62 #define	T_TLB_DIRTY	20	/* TLB dirty bit */
     63 #define	T_PAGEREF	21	/* page reference */
     64 #define	T_EMULATION	22	/* assist emulation */
     65 #define	T_HIGHERPL	23	/* higher-privelege transfer */
     66 #define	T_LOWERPL	24	/* lower-privilege transfer */
     67 #define	T_TAKENBR	25	/* taken branch */
     68 #define	T_DATACC	26	/* data access rights >=7100 */
     69 #define	T_DATAPID	27	/* data protection ID >=7100 */
     70 #define	T_DATALIGN	28	/* unaligned data ref */
     71 #define	T_PERFMON	29	/* performance monitor interrupt */
     72 #define	T_IDEBUG	30	/* debug SFU interrupt */
     73 #define	T_DDEBUG	31	/* debug SFU interrupt */
     74 
     75 /*
     76  * Reserved range for traps is 0-63, place user flag at 6th bit
     77  */
     78 #define	T_USER_POS	25
     79 #define	T_USER		(1 << (31 - T_USER_POS))
     80 
     81 /*
     82  * Various trap frame flags.
     83  */
     84 #define	TFF_LAST_POS	0
     85 #define	TFF_ITLB_POS	1
     86 #define	TFF_SYS_POS	2
     87 #define	TFF_INTR_POS	3
     88 
     89 #define	TFF_LAST	(1 << (31 - TFF_LAST_POS))
     90 #define	TFF_ITLB	(1 << (31 - TFF_ITLB_POS))
     91 #define	TFF_SYS		(1 << (31 - TFF_SYS_POS))
     92 #define	TFF_INTR	(1 << (31 - TFF_INTR_POS))
     93 
     94 /*
     95  * Define this for pretty printings of trapflags.
     96  */
     97 #define	T_BITS	"\020\07user\036intr\037itlb\040last"
     98 
     99 /*
    100  * These are break instruction entry points.
    101  */
    102 /* im5 */
    103 #define	HPPA_BREAK_KERNEL	0
    104 /* im13 */
    105 #define	HPPA_BREAK_SS		4
    106 #define	HPPA_BREAK_KGDB		5
    107 #define	HPPA_BREAK_GET_PSW	9
    108 #define	HPPA_BREAK_SET_PSW	10
    109 
    110 /*
    111  * break instruction decoding.
    112  */
    113 #define	break5(i)	((i) & 0x1f)
    114 #define	break13(i)	(((i) >> 13) & 0x1fff)
    115 
    116 #endif	/* _HPPA_TRAP_H_ */
    117 
    118