/*      pcb.h,v 1.14.22.2 2007/11/06 23:15:05 matt Exp  */

/*
 * Copyright (c) 2001 Matt Thomas <matt@3am-software.com>.
 * Copyright (c) 1994 Mark Brinicombe.
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the RiscBSD team.
 * 4. The name "RiscBSD" nor the name of the author may be used to
 *    endorse or promote products derived from this software without specific
 *    prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY RISCBSD ``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 RISCBSD OR CONTRIBUTORS 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.
 */

#ifndef _ARM_PCB_H_
#define _ARM_PCB_H_

#include <machine/frame.h>

#include <arm/arm32/pte.h>
#include <arm/reg.h>

struct pcb_faultinfo {
        void *pfi_faultptep;
        vaddr_t pfi_faultaddr;
        u_int pfi_repeats;
        pid_t pfi_lastpid;
        uint8_t pfi_faulttype;
};

#define pcb_ksp         pcb_sp

struct pcb {
        /*
         * WARNING!
         * cpuswitchto.S relies on pcb_r8 being quad-aligned
         * (due to the use of "strd" when compiled for XSCALE)
         */
        u_int   pcb_r8 __aligned(8);            /* used */
        u_int   pcb_r9;                         /* used */
        u_int   pcb_r10;                        /* used */
        u_int   pcb_r11;                        /* used */
        u_int   pcb_r12;                        /* used */
        u_int   pcb_sp;                         /* used */
        u_int   pcb_lr;
        u_int   pcb_pc;

        /*
         * ARMv6 has two user thread/process id registers which can hold
         * any 32bit quanttiies.
         */
        u_int   pcb_user_pid_rw;                /* p15, 0, Rd, c13, c0, 2 */
        u_int   pcb_user_pid_ro;                /* p15, 0, Rd, c13, c0, 3 */

        void *  pcb_onfault;                    /* On fault handler */
        struct  vfpreg pcb_vfp;                 /* VFP registers */
        struct  vfpreg pcb_kernel_vfp;          /* kernel VFP state */
        struct  pcb_faultinfo pcb_faultinfo;
};

/*
 * No additional data for core dumps.
 */
struct md_coredump {
        int     md_empty;
};

#endif  /* _ARM_PCB_H_ */