proc.h revision 175846 
1/*-
2 * Copyright (c) 1991 Regents of the University of California.
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 * 4. Neither the name of the University nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 *	from: @(#)proc.h	7.1 (Berkeley) 5/15/91
30 * $FreeBSD: head/sys/amd64/include/proc.h 175846 2008-01-31 08:24:27Z mav $
31 */
32
33#ifndef _MACHINE_PROC_H_
34#define	_MACHINE_PROC_H_
35
36/*
37 * Machine-dependent part of the proc structure for AMD64.
38 */
39struct mdthread {
40	int	md_spinlock_count;	/* (k) */
41	register_t md_saved_flags;	/* (k) */
42};
43
44struct mdproc {
45};
46
47#ifdef	_KERNEL
48
49/* Get the current kernel thread stack usage. */
50#define GET_STACK_USAGE(total, used) do {				\
51	struct thread	*td = curthread;				\
52	(total) = td->td_kstack_pages * PAGE_SIZE;			\
53	(used) = (char *)td->td_kstack +				\
54	    td->td_kstack_pages * PAGE_SIZE -				\
55	    (char *)&td;						\
56} while (0)
57
58#endif  /* _KERNEL */
59
60#endif /* !_MACHINE_PROC_H_ */
61