/*      $NetBSD: proc.h,v 1.8 2026/05/06 06:55:15 skrll Exp $   */

/*-
 * Copyright (c) 2014 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Matt Thomas of 3am Software Foundry.
 *
 * 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``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 FOUNDATION 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 _RISCV_PROC_H_
#define _RISCV_PROC_H_

#include <sys/param.h>

struct lwp;

/*
 * Machine-dependent part of the lwp structure for RISC-V
 */
struct trapframe;

struct mdlwp {
        struct trapframe *md_utf;       /* trapframe from userspace */
        struct trapframe *md_ktf;       /* trapframe from userspace */
        struct faultbuf *md_onfault;    /* registers to store on fault */
        unsigned long md_usp;           /* for locore.S */
        unsigned long md_ss_addr;       /* single step address for ptrace */
        int     md_ss_instr;            /* single step instruction for ptrace */
        volatile int md_astpending;     /* AST pending on return to userland */
};

struct mdproc {
                                        /* syscall entry for this process */
        void    (*md_syscall)(struct trapframe *);
};

#ifdef _KERNEL
#define LWP0_CPU_INFO   &cpu_info_store[0]      /* staticly set in lwp0 */
#if 0
#define LWP0_MD_INITIALIZER {   \
        .md_utf = (void *)0xdeadbeef, \
    }
#endif
#endif /* _KERNEL */

#endif /* _RISCV_PROC_H_ */