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 cpu_core_t	cpu_core[MAXCPU];
41 kmutex_t	cpu_lock;
42 solaris_cpu_t	solaris_cpu[MAXCPU];
43 int		nsec_per_tick;
44 
45 /*
46  *  OpenSolaris subsystem initialisation.
47  */
48 static void
49 opensolaris_load(void *dummy)
50 {
51 	int i;
52 
53 	/*
54 	 * "Enable" all CPUs even though they may not exist just so
55 	 * that the asserts work. On FreeBSD, if a CPU exists, it is
56 	 * enabled.
57 	 */
58 	for (i = 0; i < MAXCPU; i++) {
59 		solaris_cpu[i].cpuid = i;
60 		solaris_cpu[i].cpu_flags &= CPU_ENABLE;
61 	}
62 
63 	mutex_init(&cpu_lock, "OpenSolaris CPU lock", MUTEX_DEFAULT, NULL);
64 
65 	nsec_per_tick = NANOSEC / hz;
66 }
67 
68 SYSINIT(opensolaris_register, SI_SUB_OPENSOLARIS, SI_ORDER_FIRST, opensolaris_load, NULL);
69 
70 static void
71 opensolaris_unload(void)
72 {
73 	mutex_destroy(&cpu_lock);
74 }
75 
76 SYSUNINIT(opensolaris_unregister, SI_SUB_OPENSOLARIS, SI_ORDER_FIRST, opensolaris_unload, NULL);
77 
78 static int
79 opensolaris_modevent(module_t mod __unused, int type, void *data __unused)
80 {
81 	int error = 0;
82 
83 	switch (type) {
84 	case MOD_LOAD:
85 		utsname.nodename = prison0.pr_hostname;
86 		break;
87 
88 	case MOD_UNLOAD:
89 		break;
90 
91 	case MOD_SHUTDOWN:
92 		break;
93 
94 	default:
95 		error = EOPNOTSUPP;
96 		break;
97 
98 	}
99 	return (error);
100 }
101 
102 DEV_MODULE(opensolaris, opensolaris_modevent, NULL);
103 MODULE_VERSION(opensolaris, 1);
104