1/*- 2 * Copyright (c) 2001 Jake Burkholder. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29#ifndef _MACHINE_PCB_H_ 30#define _MACHINE_PCB_H_ 31 32#ifndef LOCORE 33#include <machine/frame.h> 34#endif 35 36#define MAXWIN 8 37 38#define PCB_FEF (1 << 0) 39 40#ifndef LOCORE 41 42/* NOTE: pcb_ufp must be aligned on a 64 byte boundary. */ 43struct pcb { 44 struct rwindow pcb_rw[MAXWIN]; 45 uint32_t pcb_kfp[64]; 46 uint32_t pcb_ufp[64]; 47 uint64_t pcb_rwsp[MAXWIN]; 48 uint64_t pcb_flags; 49 uint64_t pcb_nsaved; 50 uint64_t pcb_pc; 51 uint64_t pcb_sp; 52 uint64_t pcb_tpc; 53 uint64_t pcb_pad[3]; 54} __aligned(64); 55 56#ifdef _KERNEL 57void makectx(struct trapframe *tf, struct pcb *pcb); 58int savectx(struct pcb *pcb) __returns_twice; 59#endif 60 61#endif /* !LOCORE */ 62 63#endif /* !_MACHINE_PCB_H_ */ 64