sys/arch/hppa/include/frame.h

   1 /*      $NetBSD: frame.h,v 1.8 2009/04/30 07:01:27 skrll Exp $  */
   2
   3 /*      $OpenBSD: frame.h,v 1.11 1999/11/25 18:28:06 mickey Exp $       */
   4
   5 /*
   6  * Copyright (c) 1999-2004 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  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21  * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
  22  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  23  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  24  * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  26  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  27  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  28  * THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31
  32 #ifndef _HPPA_FRAME_H_
  33 #define _HPPA_FRAME_H_
  34
  35 /*
  36  * Call frame definitions
  37  */
  38 #define HPPA_FRAME_NARGS        (12)
  39 #define HPPA_FRAME_MAXARGS      (HPPA_FRAME_NARGS * 4)
  40 #define HPPA_FRAME_ARG(n)       (-(32 + 4*((n) + 1)))
  41 #define HPPA_FRAME_CARG(n,sp)   ((register_t *)((sp) + HPPA_FRAME_ARG(n)))
  42 #define HPPA_FRAME_SIZE         (64)
  43 #define HPPA_FRAME_PSP          (-4)
  44 #define HPPA_FRAME_EP           (-8)
  45 #define HPPA_FRAME_CLUP         (-12)
  46 #define HPPA_FRAME_SL           (-16)
  47 #define HPPA_FRAME_CRP          (-20)
  48 #define HPPA_FRAME_ERP          (-24)
  49 #define HPPA_FRAME_ESR4         (-28)
  50 #define HPPA_FRAME_EDP          (-32)
  51 #define HPPA_FRAME_ROUND(x) \
  52         ((((uintptr_t)x) + HPPA_FRAME_SIZE - 1) & ~(HPPA_FRAME_SIZE - 1))
  53
  54 /*
  55  * Macros to decode processor status word.
  56  */
  57 #define HPPA_PC_PRIV_MASK    3
  58 #define HPPA_PC_PRIV_KERN    0
  59 #define HPPA_PC_PRIV_USER    3
  60 #define USERMODE(pc)    ((((register_t)pc) & HPPA_PC_PRIV_MASK) != HPPA_PC_PRIV_KERN)
  61 #define KERNMODE(pc)    (((register_t)pc) & ~HPPA_PC_PRIV_MASK)
  62
  63 #ifndef __ASSEMBLER__
  64 /*
  65  * the trapframe is divided into two parts:
  66  *      one is saved while we are in the physical mode (beginning of the trap),
  67  *      and should be kept as small as possible, since all the interrupts will
  68  *      be lost during this phase, also it must be 64-bytes aligned, per
  69  *      pa-risc stack conventions, and its dependencies in the code (;
  70  *      the other part is filled out when we are already in the virtual mode,
  71  *      are able to catch interrupts (they are kept pending) and perform
  72  *      other trap activities (like tlb misses).
  73  */
  74 struct trapframe {
  75         /* the `physical' part of the trapframe */
  76         u_int   tf_t1;          /* r22 */
  77         u_int   tf_t2;          /* r21 */
  78         u_int   tf_sp;          /* r30 */
  79         u_int   tf_t3;          /* r20 */
  80         u_int   tf_iisq_head;   /* cr17 */
  81         u_int   tf_iisq_tail;
  82         u_int   tf_iioq_head;   /* cr18 */
  83         u_int   tf_iioq_tail;
  84         u_int   tf_eiem;        /* cr15 */
  85         u_int   tf_ipsw;        /* cr22 */
  86         u_int   tf_sr3;
  87         u_int   tf_pidr1;       /* cr8 */
  88         u_int   tf_isr;         /* cr20 */
  89         u_int   tf_ior;         /* cr21 */
  90         u_int   tf_iir;         /* cr19 */
  91         u_int   tf_flags;
  92
  93         /* here starts the `virtual' part */
  94         u_int   tf_sar;         /* cr11 */
  95         u_int   tf_r1;
  96         u_int   tf_rp;          /* r2 */
  97         u_int   tf_r3;          /* frame pointer when -g */
  98         u_int   tf_r4;
  99         u_int   tf_r5;
 100         u_int   tf_r6;
 101         u_int   tf_r7;
 102         u_int   tf_r8;
 103         u_int   tf_r9;
 104         u_int   tf_r10;
 105         u_int   tf_r11;
 106         u_int   tf_r12;
 107         u_int   tf_r13;
 108         u_int   tf_r14;
 109         u_int   tf_r15;
 110         u_int   tf_r16;
 111         u_int   tf_r17;
 112         u_int   tf_r18;
 113         u_int   tf_t4;          /* r19 */
 114         u_int   tf_arg3;        /* r23 */
 115         u_int   tf_arg2;        /* r24 */
 116         u_int   tf_arg1;        /* r25 */
 117         u_int   tf_arg0;        /* r26 */
 118         u_int   tf_dp;          /* r27 */
 119         u_int   tf_ret0;        /* r28 */
 120         u_int   tf_ret1;        /* r29 */
 121         u_int   tf_r31;
 122         u_int   tf_sr0;
 123         u_int   tf_sr1;
 124         u_int   tf_sr2;
 125         u_int   tf_sr4;
 126         u_int   tf_sr5;
 127         u_int   tf_sr6;
 128         u_int   tf_sr7;
 129         u_int   tf_pidr2;       /* cr9 */
 130         u_int   tf_pidr3;       /* cr12 */
 131         u_int   tf_pidr4;       /* cr13 */
 132         u_int   tf_rctr;        /* cr0 */
 133         u_int   tf_ccr;         /* cr10 */
 134         u_int   tf_eirr;        /* cr23 - DDB */
 135         u_int   tf_vtop;        /* cr25 - DDB */
 136         u_int   tf_cr28;        /*      - DDB */
 137         u_int   tf_cr30;        /* uaddr */
 138
 139         u_int   tf_pad[4];      /* pad to 256 bytes */
 140 };
 141
 142 #endif /* !__ASSEMBLER__ */
 143
 144 #endif /* !_HPPA_FRAME_H_ */