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_FRAME_H_
30#define	_MACHINE_FRAME_H_
31
32#define	RW_SHIFT	7
33#define	SPOFF		2047
34#define	BIAS		SPOFF		/* XXX - open/netbsd compat */
35
36#ifndef LOCORE
37
38/*
39 * NOTE: keep this structure in sync with struct reg and struct mcontext.
40 */
41struct trapframe {
42	uint64_t tf_global[8];
43	uint64_t tf_out[8];
44	uint64_t tf_fprs;
45	uint64_t tf_fsr;
46	uint64_t tf_gsr;
47	uint64_t tf_level;
48	uint64_t tf_pil;
49	uint64_t tf_sfar;
50	uint64_t tf_sfsr;
51	uint64_t tf_tar;
52	uint64_t tf_tnpc;
53	uint64_t tf_tpc;
54	uint64_t tf_tstate;
55	uint64_t tf_type;
56	uint64_t tf_y;
57	uint64_t tf_wstate;
58	uint64_t tf_pad[2];
59};
60#define	tf_sp	tf_out[6]
61
62#define	TF_DONE(tf) do { \
63	tf->tf_tpc = tf->tf_tnpc; \
64	tf->tf_tnpc += 4; \
65} while (0)
66
67struct frame {
68	u_long	fr_local[8];
69	u_long	fr_in[8];
70	u_long	fr_pad[8];
71};
72#define	fr_arg	fr_in
73#define	fr_fp	fr_in[6]
74#define	fr_pc	fr_in[7]
75
76#define	v9next_frame(fp)	((struct frame *)(fp->fr_fp + BIAS))
77
78/*
79 * Frame used for pcb_rw.
80 */
81struct rwindow {
82	u_long	rw_local[8];
83	u_long	rw_in[8];
84};
85
86struct thread;
87
88int	rwindow_save(struct thread *td);
89int	rwindow_load(struct thread *td, struct trapframe *tf, int n);
90
91#endif /* !LOCORE */
92
93#endif /* !_MACHINE_FRAME_H_ */
94