cpu.h revision 1.18 
1/*	$NetBSD: cpu.h,v 1.18 2014/01/22 23:38:21 christos Exp $	*/
2
3/*
4 * Copyright (c) 2008-2011 Antti Kantee.  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 ``AS IS'' AND ANY EXPRESS
16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * 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 OR
21 * 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
28#ifndef _SYS_RUMP_CPU_H_
29#define _SYS_RUMP_CPU_H_
30
31#ifndef _LOCORE
32
33#include <sys/cpu_data.h>
34#include <machine/pcb.h>
35
36struct cpu_info {
37	struct cpu_data ci_data;
38	cpuid_t ci_cpuid;
39	struct lwp *ci_curlwp;
40
41	struct cpu_info *ci_next;
42
43#ifdef __alpha__
44	uint64_t ci_pcc_freq;
45#endif
46
47/*
48 * XXX: horrible workaround for vax lock.h.
49 * I eventually want to nuke rump include/machine, so don't waste
50 * energy fighting with this.
51 */
52#ifdef __vax__
53	int ci_ipimsgs;
54#define IPI_SEND_CNCHAR 0
55#define IPI_DDB 0
56#endif /* __vax__ */
57
58/*
59 * More stinky hacks, this time for powerpc.  Will go away eventually.
60 */
61#ifdef __powerpc__
62	struct cache_info {
63		int dcache_size;
64		int dcache_line_size;
65		int icache_size;
66		int icache_line_size;
67	} ci_ci;
68#endif /* __powerpc */
69};
70
71/* more dirty rotten vax kludges */
72#ifdef __vax__
73static __inline void cpu_handle_ipi(void) {}
74#endif /* __vax__ */
75
76#ifdef __powerpc__
77void __syncicache(void *, size_t);
78#endif
79
80struct lwp *rumpuser_curlwp(void);
81#define curlwp rumpuser_curlwp()
82
83#define curcpu() (curlwp->l_cpu)
84#define cpu_number() (cpu_index(curcpu))
85
86extern struct cpu_info *rumpcpu_info_list;
87#define CPU_INFO_ITERATOR		int __unused
88#define CPU_INFO_FOREACH(_cii_, _ci_)	_cii_ = 0, _ci_ = rumpcpu_info_list; \
89					_ci_ != NULL; _ci_ = _ci_->ci_next
90#define CPU_IS_PRIMARY(_ci_)		(_ci_->ci_index == 0)
91
92
93#endif /* !_LOCORE */
94
95#endif /* _SYS_RUMP_CPU_H_ */
96