1/*-
 2 * Copyright (c) 2015-2016 Ruslan Bukin <br@bsdpad.com>
 3 * All rights reserved.
 4 *
 5 * Portions of this software were developed by SRI International and the
 6 * University of Cambridge Computer Laboratory under DARPA/AFRL contract
 7 * FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
 8 *
 9 * Portions of this software were developed by the University of Cambridge
10 * Computer Laboratory as part of the CTSRD Project, with support from the
11 * UK Higher Education Innovation Fund (HEIF).
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 *    notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 *    notice, this list of conditions and the following disclaimer in the
20 *    documentation and/or other materials provided with the distribution.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#ifndef	_MACHINE_PCB_H_
36#define	_MACHINE_PCB_H_
37
38#ifndef LOCORE
39
40struct trapframe;
41
42struct pcb {
43	uint64_t	pcb_ra;		/* Return address */
44	uint64_t	pcb_sp;		/* Stack pointer */
45	uint64_t	pcb_gp;		/* Global pointer */
46	uint64_t	pcb_tp;		/* Thread pointer */
47	uint64_t	pcb_s[12];	/* Saved registers */
48	uint64_t	pcb_x[32][2];	/* Floating point registers */
49	uint64_t	pcb_fcsr;	/* Floating point control reg */
50	uint64_t	pcb_fpflags;	/* Floating point flags */
51#define	PCB_FP_STARTED	0x1
52#define	PCB_FP_USERMASK	0x1
53	vm_offset_t	pcb_onfault;	/* Copyinout fault handler */
54};
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_ */