cpu.h revision 1.14 
1/*	$NetBSD: cpu.h,v 1.14 2011/01/04 16:23:35 pooka Exp $	*/
2
3/*
4 * Copyright (c) 2007 Antti Kantee.  All Rights Reserved.
5 *
6 * Development of this software was supported by Google Summer of Code.
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 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
18 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR 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 OR
23 * 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
30#ifndef _SYS_RUMP_CPU_H_
31#define _SYS_RUMP_CPU_H_
32
33#ifndef _LOCORE
34
35#include <sys/cpu_data.h>
36#include <machine/pcb.h>
37
38struct cpu_info {
39	struct cpu_data ci_data;
40	cpuid_t ci_cpuid;
41	struct lwp *ci_curlwp;
42
43	struct cpu_info *ci_next;
44
45/*
46 * XXX: horrible workaround for vax lock.h.
47 * I eventually want to nuke rump include/machine, so don't waste
48 * energy fighting with this.
49 */
50#ifdef __vax__
51	int ci_ipimsgs;
52#define IPI_SEND_CNCHAR 0
53#define IPI_DDB 0
54#endif /* __vax__ */
55
56/*
57 * More stinky hacks, this time for powerpc.  Will go away eventually.
58 */
59#ifdef __powerpc__
60	struct cache_info {
61		int dcache_size;
62		int dcache_line_size;
63		int icache_size;
64		int icache_line_size;
65	} ci_ci;
66#endif /* __powerpc */
67};
68
69/* more dirty rotten vax kludges */
70#ifdef __vax__
71static __inline void cpu_handle_ipi(void) {}
72#endif /* __vax__ */
73
74#ifdef __powerpc__
75void __syncicache(void *, size_t);
76#endif
77
78struct lwp *rumpuser_get_curlwp(void);
79#define curlwp rumpuser_get_curlwp()
80
81#define curcpu() (curlwp->l_cpu)
82#define cpu_number() (cpu_index(curcpu))
83
84extern struct cpu_info *rumpcpu_info_list;
85#define CPU_INFO_ITERATOR		int
86#define CPU_INFO_FOREACH(_cii_, _ci_)	_cii_ = 0, _ci_ = rumpcpu_info_list; \
87					_ci_ != NULL; _ci_ = _ci_->ci_next
88#define CPU_IS_PRIMARY(_ci_)		(_ci_->ci_index == 0)
89
90
91#endif /* !_LOCORE */
92
93#endif /* _SYS_RUMP_CPU_H_ */
94