1 /*-
2  * Copyright 2007 John Birrell <jb@FreeBSD.org>
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23  * SUCH DAMAGE.
24  *
25  * $FreeBSD$
26  *
27  */
28 
29 #include <sys/cdefs.h>
30 #include <sys/param.h>
31 #include <sys/conf.h>
32 #include <sys/cpuvar.h>
33 #include <sys/errno.h>
34 #include <sys/jail.h>
35 #include <sys/kernel.h>
36 #include <sys/misc.h>
37 #include <sys/module.h>
38 #include <sys/mutex.h>
39 
40 extern struct opensolaris_utsname utsname;
41 
42 cpu_core_t	cpu_core[MAXCPU];
43 kmutex_t	cpu_lock;
44 solaris_cpu_t	solaris_cpu[MAXCPU];
45 int		nsec_per_tick;
46 
47 /*
48  *  OpenSolaris subsystem initialisation.
49  */
50 static void
51 opensolaris_load(void *dummy)
52 {
53 	int i;
54 
55 	/*
56 	 * "Enable" all CPUs even though they may not exist just so
57 	 * that the asserts work. On FreeBSD, if a CPU exists, it is
58 	 * enabled.
59 	 */
60 	for (i = 0; i < MAXCPU; i++) {
61 		solaris_cpu[i].cpuid = i;
62 		solaris_cpu[i].cpu_flags &= CPU_ENABLE;
63 	}
64 
65 	mutex_init(&cpu_lock, "OpenSolaris CPU lock", MUTEX_DEFAULT, NULL);
66 
67 	nsec_per_tick = NANOSEC / hz;
68 }
69 
70 SYSINIT(opensolaris_register, SI_SUB_OPENSOLARIS, SI_ORDER_FIRST, opensolaris_load, NULL);
71 
72 static void
73 opensolaris_unload(void)
74 {
75 	mutex_destroy(&cpu_lock);
76 }
77 
78 SYSUNINIT(opensolaris_unregister, SI_SUB_OPENSOLARIS, SI_ORDER_FIRST, opensolaris_unload, NULL);
79 
80 static int
81 opensolaris_modevent(module_t mod __unused, int type, void *data __unused)
82 {
83 	int error = 0;
84 
85 	switch (type) {
86 	case MOD_LOAD:
87 		break;
88 
89 	case MOD_UNLOAD:
90 		break;
91 
92 	case MOD_SHUTDOWN:
93 		break;
94 
95 	default:
96 		error = EOPNOTSUPP;
97 		break;
98 
99 	}
100 	return (error);
101 }
102 
103 DEV_MODULE(opensolaris, opensolaris_modevent, NULL);
104 MODULE_VERSION(opensolaris, 1);
105