1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2001 Jake Burkholder. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31#ifndef _MACHINE_PCB_H_ 32#define _MACHINE_PCB_H_ 33 34#ifndef LOCORE 35#include <machine/frame.h> 36#endif 37 38#define MAXWIN 8 39 40#define PCB_FEF (1 << 0) 41 42#ifndef LOCORE 43 44/* NOTE: pcb_ufp must be aligned on a 64 byte boundary. */ 45struct pcb { 46 struct rwindow pcb_rw[MAXWIN]; 47 uint32_t pcb_kfp[64]; 48 uint32_t pcb_ufp[64]; 49 uint64_t pcb_rwsp[MAXWIN]; 50 uint64_t pcb_flags; 51 uint64_t pcb_nsaved; 52 uint64_t pcb_pc; 53 uint64_t pcb_sp; 54 uint64_t pcb_tpc; 55 uint64_t pcb_pad[3]; 56} __aligned(64); 57 58#ifdef _KERNEL 59void makectx(struct trapframe *tf, struct pcb *pcb); 60int savectx(struct pcb *pcb) __returns_twice; 61#endif 62 63#endif /* !LOCORE */ 64 65#endif /* !_MACHINE_PCB_H_ */ 66