xref: /freebsd/sys/powerpc/include/proc.h (revision 8ddb146abcdf061be9f2c0db7e391697dafad85c)
1 /*-
2  * SPDX-License-Identifier: BSD-4-Clause
3  *
4  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
5  * Copyright (C) 1995, 1996 TooLs GmbH.
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 TooLs GmbH.
19  * 4. The name of TooLs GmbH may not be used to endorse or promote products
20  *    derived from this software without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25  * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
27  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
28  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
30  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
31  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32  *
33  *	$NetBSD: proc.h,v 1.2 1997/04/16 22:57:48 thorpej Exp $
34  * $FreeBSD$
35  */
36 
37 #ifndef _MACHINE_PROC_H_
38 #define	_MACHINE_PROC_H_
39 
40 /*
41  * Machine-dependent part of the proc structure
42  */
43 struct mdthread {
44 	int	md_spinlock_count;	/* (k) */
45 	register_t md_saved_msr;	/* (k) */
46 };
47 
48 struct mdproc {
49 	/*
50 	 * Avoid empty structs because they are undefined behavior.
51 	 */
52 	long	md_spare;
53 };
54 
55 #ifdef __powerpc64__
56 #define	KINFO_PROC_SIZE 1088
57 #define	KINFO_PROC32_SIZE 816
58 #else
59 #define	KINFO_PROC_SIZE 816
60 #endif
61 
62 #ifdef _KERNEL
63 
64 #include <machine/pcb.h>
65 
66 /* Get the current kernel thread stack usage. */
67 #define	GET_STACK_USAGE(total, used) do {				\
68 	struct thread *td = curthread;					\
69 	(total) = td->td_kstack_pages * PAGE_SIZE - sizeof(struct pcb);	\
70 	(used) = td->td_kstack + (total) - (vm_offset_t)&td;		\
71 } while (0)
72 #endif
73 
74 #endif /* !_MACHINE_PROC_H_ */
75