pcb.h revision 129198 
1/*	$NetBSD: pcb.h,v 1.10 2003/10/13 21:46:39 scw Exp $	*/
2
3/*
4 * Copyright (c) 2001 Matt Thomas <matt@3am-software.com>.
5 * Copyright (c) 1994 Mark Brinicombe.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 *    must display the following acknowledgement:
18 *	This product includes software developed by the RiscBSD team.
19 * 4. The name "RiscBSD" nor the name of the author may be used to
20 *    endorse or promote products derived from this software without specific
21 *    prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY RISCBSD ``AS IS'' AND ANY EXPRESS OR IMPLIED
24 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
25 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26 * IN NO EVENT SHALL RISCBSD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * $FreeBSD: head/sys/arm/include/pcb.h 129198 2004-05-14 11:46:45Z cognet $
36 */
37
38#ifndef	_MACHINE_PCB_H_
39#define	_MACHINE_PCB_H_
40
41#include <machine/frame.h>
42#include <machine/fp.h>
43
44
45struct trapframe;
46
47struct pcb_arm32 {
48	vm_offset_t	pcb32_pagedir;		/* PT hooks */
49	uint32_t *pcb32_pl1vec;		/* PTR to vector_base L1 entry*/
50	uint32_t pcb32_l1vec;			/* Value to stuff on ctx sw */
51	u_int	pcb32_dacr;			/* Domain Access Control Reg */
52	void	*pcb32_cstate;			/* &pmap->pm_cstate */
53	/*
54	 * WARNING!
55	 * cpuswitch.S relies on pcb32_r8 being quad-aligned in struct pcb
56	 * (due to the use of "strd" when compiled for XSCALE)
57	 */
58	u_int	pcb32_r8;			/* used */
59	u_int	pcb32_r9;			/* used */
60	u_int	pcb32_r10;			/* used */
61	u_int	pcb32_r11;			/* used */
62	u_int	pcb32_r12;			/* used */
63	u_int	pcb32_sp;			/* used */
64	u_int	pcb32_lr;
65	u_int	pcb32_pc;
66	u_int	pcb32_und_sp;
67};
68#define	pcb_pagedir	un_32.pcb32_pagedir
69#define	pcb_pl1vec	un_32.pcb32_pl1vec
70#define	pcb_l1vec	un_32.pcb32_l1vec
71#define	pcb_dacr	un_32.pcb32_dacr
72#define	pcb_cstate	un_32.pcb32_cstate
73
74/*
75 * WARNING!
76 * See warning for struct pcb_arm32, above, before changing struct pcb!
77 */
78struct pcb {
79	u_int	pcb_flags;
80#define	PCB_OWNFPU	0x00000001
81#define PCB_NOALIGNFLT	0x00000002
82	caddr_t	pcb_onfault;			/* On fault handler */
83	struct	pcb_arm32 un_32;
84	struct	fpe_sp_state pcb_fpstate;	/* Floating Point state */
85};
86
87/*
88 * No additional data for core dumps.
89 */
90struct md_coredump {
91	int	md_empty;
92};
93
94#ifdef _KERNEL
95extern struct pcb *curpcb;
96void    savectx(struct pcb *);
97#endif	/* _KERNEL */
98
99#endif	/* !_MACHINE_PCB_H_ */
100