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Annotation of sys/arch/powerpc/include/trap.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: trap.h,v 1.7 2007/04/26 21:36:32 kettenis Exp $       */
        !             2: /*     $NetBSD: trap.h,v 1.1 1996/09/30 16:34:35 ws Exp $      */
        !             3:
        !             4: /*
        !             5:  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
        !             6:  * Copyright (C) 1995, 1996 TooLs GmbH.
        !             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 TooLs GmbH.
        !            20:  * 4. The name of TooLs GmbH 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 TOOLS GMBH ``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 TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
        !            27:  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
        !            28:  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
        !            29:  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
        !            30:  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
        !            31:  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
        !            32:  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
        !            33:  */
        !            34: #ifndef        _POWERPC_TRAP_H_
        !            35: #define        _POWERPC_TRAP_H_
        !            36:
        !            37: #define        EXC_RSVD        0x0000          /* Reserved */
        !            38: #define        EXC_RST         0x0100          /* Reset */
        !            39: #define        EXC_MCHK        0x0200          /* Machine Check */
        !            40: #define        EXC_DSI         0x0300          /* Data Storage Interrupt */
        !            41: #define        EXC_ISI         0x0400          /* Instruction Storage Interrupt */
        !            42: #define        EXC_EXI         0x0500          /* External Interrupt */
        !            43: #define        EXC_ALI         0x0600          /* Alignment Interrupt */
        !            44: #define        EXC_PGM         0x0700          /* Program Interrupt */
        !            45: #define        EXC_FPU         0x0800          /* Floating-point Unavailable */
        !            46: #define        EXC_DECR        0x0900          /* Decrementer Interrupt */
        !            47: #define        EXC_SC          0x0c00          /* System Call */
        !            48: #define        EXC_TRC         0x0d00          /* Trace */
        !            49: #define        EXC_FPA         0x0e00          /* Floating-point Assist */
        !            50: #define        EXC_PERF        0x0f00          /* Performance Monitoring */
        !            51: #define        EXC_VEC         0x0f20          /* AltiVec Unavailable */
        !            52: #define        EXC_BPT         0x1300          /* Instruction Breakpoint */
        !            53: #define        EXC_SMI         0x1400          /* System Management Interrupt */
        !            54: #define        EXC_VECAST      0x1600          /* AltiVec Assist */
        !            55:
        !            56: /* And these are only on the 603: */
        !            57: #define        EXC_IMISS       0x1000          /* Instruction translation miss */
        !            58: #define        EXC_DLMISS      0x1100          /* Data load translation miss */
        !            59: #define        EXC_DSMISS      0x1200          /* Data store translation miss */
        !            60:
        !            61: #define        EXC_LAST        0x2f00          /* Last possible exception vector */
        !            62:
        !            63: #define        EXC_AST         0x3000          /* Fake AST vector */
        !            64:
        !            65: /* Trap was in user mode */
        !            66: #define        EXC_USER        0x10000
        !            67:
        !            68: /*
        !            69:  * EXC_ALI sets bits in the DSISR and DAR to provide enough
        !            70:  * information to recover from the unaligned access without needing to
        !            71:  * parse the offending instruction. This includes certain bits of the
        !            72:  * opcode, and information about what registers are used. The opcode
        !            73:  * indicator values below come from Appendix F of Book III of "The
        !            74:  * PowerPC Architecture".
        !            75:  */
        !            76:
        !            77: #define EXC_ALI_OPCODE_INDICATOR(dsisr) ((dsisr >> 10) & 0x7f)
        !            78: #define EXC_ALI_LFD    0x09
        !            79: #define EXC_ALI_STFD   0x0b
        !            80: #define EXC_ALI_DCBZ   0x5f
        !            81:
        !            82: /* Macros to extract register information */
        !            83: #define EXC_ALI_RST(dsisr) ((dsisr >> 5) & 0x1f)   /* source or target */
        !            84: #define EXC_ALI_RA(dsisr) (dsisr & 0x1f)
        !            85:
        !            86: #endif /* _POWERPC_TRAP_H_ */