xref: /freebsd/sys/powerpc/include/pcpu.h (revision b57e802a8521cd90a2f8e3f2612ac107ac9a3591)
1 /*-
2  * Copyright (c) 1999 Luoqi Chen <luoqi@freebsd.org>
3  * Copyright (c) Peter Wemm <peter@netplex.com.au>
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  *
27  * $FreeBSD$
28  */
29 
30 #ifndef	_MACHINE_PCPU_H_
31 #define	_MACHINE_PCPU_H_
32 
33 #ifdef _KERNEL
34 #include <machine/cpufunc.h>
35 
36 struct pmap;
37 
38 #define	PCPU_MD_FIELDS							\
39 	int		pc_inside_intr;					\
40 	u_int32_t	pc_next_asn;		/* next ASN to alloc */	\
41 	u_int32_t	pc_current_asngen;	/* ASN rollover check */\
42 	struct pmap	*pc_curpmap		/* current pmap */
43 
44 #define PCPUP	((struct pcpu *) powerpc_get_pcpup())
45 
46 #define	PCPU_GET(member)	(PCPUP->pc_ ## member)
47 #define	PCPU_PTR(member)	(&PCPUP->pc_ ## member)
48 #define	PCPU_SET(member,value)	(PCPUP->pc_ ## member = (value))
49 
50 #endif	/* _KERNEL */
51 
52 #endif	/* !_MACHINE_PCPU_H_ */
53