/*      $NetBSD: pcb.h,v 1.16 2022/12/11 18:02:40 oster Exp $   */

/*
 * Copyright (c) 1994 Ludd, University of Lule}, Sweden.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

 /* All bugs are subject to removal without further notice */

#ifndef _VAX_PCB_H_
#define _VAX_PCB_H_

#include <machine/trap.h>

struct pcb {

        /* Hardware registers, based on VAX special instructions */

        long    KSP;            /*  Kernel Stack Pointer      */
        long    ESP;            /*  Executive Stack Pointer   */
        long    SSP;            /*  Supervisor Stack Pointer  */
        long    USP;            /*  User Stack Pointer        */
        long    R[12];          /*  Register 0-11             */
        long    AP;             /*  Argument Pointer          */
        long    FP;             /*  Frame Pointer             */
        long    PC;             /*  Program Counter           */
        long    PSL;            /*  Program Status Longword   */
        struct  pte *P0BR;      /*  Page 0 Base Register      */
        long    P0LR;           /*  Page 0 Length Register    */
        struct  pte *P1BR;      /*  Page 1 Base Register      */
        long    P1LR;           /*  Page 1 Length Register    */
        long    ASN;            /*  Address space number      */

        /* Software registers, only used by kernel software */
        void   *pcb_onfault;    /* Tells whether fault copy */
        paddr_t pcb_paddr;      /* physical address of PCB */
        struct pmap *pcb_pm;    /* owning pmap */
        struct pcb *pcb_pmnext; /* next pcb that shares this pmap */
};

#define AST_MASK 0x07000000
#define AST_PCB  0x04000000     /* disable AST */
#define AST_ON   0x03000000     /* request AST */

/* machine-specific core dump; save trapframe */
struct  md_coredump {
        struct trapframe md_tf;
};

#endif /* _VAX_PCB_H_ */