pcb.h revision 1.28 
1/*	pcb.h,v 1.14.22.2 2007/11/06 23:15:05 matt 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
36#ifndef	_ARM_PCB_H_
37#define	_ARM_PCB_H_
38
39#include <machine/frame.h>
40
41#include <arm/arm32/pte.h>
42#include <arm/reg.h>
43
44#define	pcb_ksp		pcb_sp
45
46struct pcb {
47	/*
48	 * WARNING!
49	 * cpuswitchto.S relies on pcb_r8 being quad-aligned
50	 * (due to the use of "strd" when compiled for XSCALE)
51	 */
52	u_int	pcb_r8 __aligned(8);		/* used */
53	u_int	pcb_r9;				/* used */
54	u_int	pcb_r10;			/* used */
55	u_int	pcb_r11;			/* used */
56	u_int	pcb_r12;			/* used */
57	u_int	pcb_sp;				/* used */
58	u_int	pcb_lr;
59	u_int	pcb_pc;
60
61	/*
62	 * ARMv6 has two user thread/process id registers which can hold
63	 * any 32bit quanttiies.
64	 */
65	u_int	pcb_user_pid_rw;		/* p15, 0, Rd, c13, c0, 2 */
66	u_int	pcb_user_pid_ro;		/* p15, 0, Rd, c13, c0, 3 */
67
68	void *	pcb_onfault;			/* On fault handler */
69	struct	vfpreg pcb_vfp;			/* VFP registers */
70	struct	vfpreg pcb_kernel_vfp;		/* kernel VFP state */
71};
72
73/*
74 * No additional data for core dumps.
75 */
76struct md_coredump {
77	int	md_empty;
78};
79
80#endif	/* _ARM_PCB_H_ */
81