/*-
* 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>
#include <riscv/vmparam.h>
struct lwp;
/*
* Machine-dependent part of the lwp structure for RISCV
*/
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 */
#if 0
#if USPACE > PAGE_SIZE
int md_upte[USPACE/4096]; /* ptes for mapping u page */
#else
int md_dpte[USPACE/4096]; /* dummy ptes to keep the same */
#endif
#endif
};
struct mdproc {
/* syscall entry for this process */
void (*md_syscall)(struct trapframe *);
};
