sys/arch/vax/include/pcb.h

   1 /*      $NetBSD: pcb.h,v 1.11 2008/02/20 16:37:52 matt Exp $    */
   2
   3 /*
   4  * Copyright (c) 1994 Ludd, University of Lule}, Sweden.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *     This product includes software developed at Ludd, University of Lule}.
  18  * 4. The name of the author may not be used to endorse or promote products
  19  *    derived from this software without specific prior written permission
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33  /* All bugs are subject to removal without further notice */
  34
  35 #ifndef _VAX_PCB_H_
  36 #define _VAX_PCB_H_
  37
  38 #include <machine/trap.h>
  39
  40 struct pcb {
  41
  42         /* Hardware registers, based on VAX special instructions */
  43
  44         long    KSP;            /*  Kernel Stack Pointer      */
  45         long    ESP;            /*  Executive Stack Pointer   */
  46         long    SSP;            /*  Supervisor Stack Pointer  */
  47         long    USP;            /*  User Stack Pointer        */
  48         long    R[12];          /*  Register 0-11             */
  49         long    AP;             /*  Argument Pointer          */
  50         long    FP;             /*  Frame Pointer             */
  51         long    PC;             /*  Program Counter           */
  52         long    PSL;            /*  Program Status Longword   */
  53         struct  pte *P0BR;      /*  Page 0 Base Register      */
  54         long    P0LR;           /*  Page 0 Length Register    */
  55         struct  pte *P1BR;      /*  Page 1 Base Register      */
  56         long    P1LR;           /*  Page 1 Length Register    */
  57
  58         /* Software registers, only used by kernel software */
  59         void   *framep;         /* Pointer to syscall frame */
  60         void   *iftrap;         /* Tells whether fault copy */
  61         paddr_t pcb_paddr;      /* physical address of PCB */
  62         struct pmap *pcb_pm;    /* owning pmap */
  63         struct pcb *pcb_pmnext; /* next pcb that shares this pmap */
  64 };
  65
  66 #define AST_MASK 0x07000000
  67 #define AST_PCB  0x04000000
  68
  69 /* machine-specific core dump; save trapframe */
  70 struct  md_coredump {
  71         struct trapframe md_tf;
  72 };
  73
  74 #endif /* _VAX_PCB_H_ */
  75