1*11be35a1SLionel Sambuc /* $NetBSD: k_uvm.c,v 1.1 2012/02/17 22:36:50 jmmv Exp $ */
2*11be35a1SLionel Sambuc /*
3*11be35a1SLionel Sambuc * Copyright (c) 2012 The NetBSD Foundation, Inc.
4*11be35a1SLionel Sambuc * All rights reserved.
5*11be35a1SLionel Sambuc *
6*11be35a1SLionel Sambuc * Redistribution and use in source and binary forms, with or without
7*11be35a1SLionel Sambuc * modification, are permitted provided that the following conditions
8*11be35a1SLionel Sambuc * are met:
9*11be35a1SLionel Sambuc * 1. Redistributions of source code must retain the above copyright
10*11be35a1SLionel Sambuc * notice, this list of conditions and the following disclaimer.
11*11be35a1SLionel Sambuc * 2. Redistributions in binary form must reproduce the above copyright
12*11be35a1SLionel Sambuc * notice, this list of conditions and the following disclaimer in the
13*11be35a1SLionel Sambuc * documentation and/or other materials provided with the distribution.
14*11be35a1SLionel Sambuc *
15*11be35a1SLionel Sambuc * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
16*11be35a1SLionel Sambuc * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
17*11be35a1SLionel Sambuc * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18*11be35a1SLionel Sambuc * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19*11be35a1SLionel Sambuc * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
20*11be35a1SLionel Sambuc * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21*11be35a1SLionel Sambuc * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
22*11be35a1SLionel Sambuc * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23*11be35a1SLionel Sambuc * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
24*11be35a1SLionel Sambuc * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
25*11be35a1SLionel Sambuc * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
26*11be35a1SLionel Sambuc * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27*11be35a1SLionel Sambuc */
28*11be35a1SLionel Sambuc
29*11be35a1SLionel Sambuc #include <sys/cdefs.h>
30*11be35a1SLionel Sambuc __KERNEL_RCSID(0, "$NetBSD: k_uvm.c,v 1.1 2012/02/17 22:36:50 jmmv Exp $");
31*11be35a1SLionel Sambuc
32*11be35a1SLionel Sambuc #include <sys/param.h>
33*11be35a1SLionel Sambuc #include <sys/kernel.h>
34*11be35a1SLionel Sambuc #include <sys/module.h>
35*11be35a1SLionel Sambuc #include <sys/sysctl.h>
36*11be35a1SLionel Sambuc
37*11be35a1SLionel Sambuc MODULE(MODULE_CLASS_MISC, k_uvm, NULL);
38*11be35a1SLionel Sambuc
39*11be35a1SLionel Sambuc /* --------------------------------------------------------------------- */
40*11be35a1SLionel Sambuc /* Sysctl interface to query information about the module. */
41*11be35a1SLionel Sambuc /* --------------------------------------------------------------------- */
42*11be35a1SLionel Sambuc
43*11be35a1SLionel Sambuc static struct sysctllog *clogp;
44*11be35a1SLionel Sambuc static int page_size;
45*11be35a1SLionel Sambuc
46*11be35a1SLionel Sambuc #define K_UVM 0x12345678
47*11be35a1SLionel Sambuc #define K_UVM_VALUE 0
48*11be35a1SLionel Sambuc
49*11be35a1SLionel Sambuc SYSCTL_SETUP(sysctl_k_uvm_setup, "sysctl k_uvm subtree setup")
50*11be35a1SLionel Sambuc {
51*11be35a1SLionel Sambuc
52*11be35a1SLionel Sambuc sysctl_createv(clog, 0, NULL, NULL,
53*11be35a1SLionel Sambuc CTLFLAG_PERMANENT,
54*11be35a1SLionel Sambuc CTLTYPE_NODE, "k_uvm", NULL,
55*11be35a1SLionel Sambuc NULL, 0, NULL, 0,
56*11be35a1SLionel Sambuc CTL_VENDOR, K_UVM, CTL_EOL);
57*11be35a1SLionel Sambuc
58*11be35a1SLionel Sambuc sysctl_createv(clog, 0, NULL, NULL,
59*11be35a1SLionel Sambuc CTLFLAG_PERMANENT,
60*11be35a1SLionel Sambuc CTLTYPE_INT, "page_size",
61*11be35a1SLionel Sambuc SYSCTL_DESCR("Value of PAGE_SIZE"),
62*11be35a1SLionel Sambuc NULL, 0, &page_size, 0,
63*11be35a1SLionel Sambuc CTL_VENDOR, K_UVM, K_UVM_VALUE, CTL_EOL);
64*11be35a1SLionel Sambuc }
65*11be35a1SLionel Sambuc
66*11be35a1SLionel Sambuc /* --------------------------------------------------------------------- */
67*11be35a1SLionel Sambuc /* Module management. */
68*11be35a1SLionel Sambuc /* --------------------------------------------------------------------- */
69*11be35a1SLionel Sambuc
70*11be35a1SLionel Sambuc static
71*11be35a1SLionel Sambuc int
k_uvm_init(prop_dictionary_t props)72*11be35a1SLionel Sambuc k_uvm_init(prop_dictionary_t props)
73*11be35a1SLionel Sambuc {
74*11be35a1SLionel Sambuc
75*11be35a1SLionel Sambuc page_size = PAGE_SIZE;
76*11be35a1SLionel Sambuc
77*11be35a1SLionel Sambuc sysctl_k_uvm_setup(&clogp);
78*11be35a1SLionel Sambuc
79*11be35a1SLionel Sambuc return 0;
80*11be35a1SLionel Sambuc }
81*11be35a1SLionel Sambuc
82*11be35a1SLionel Sambuc static
83*11be35a1SLionel Sambuc int
k_uvm_fini(void * arg)84*11be35a1SLionel Sambuc k_uvm_fini(void *arg)
85*11be35a1SLionel Sambuc {
86*11be35a1SLionel Sambuc
87*11be35a1SLionel Sambuc sysctl_teardown(&clogp);
88*11be35a1SLionel Sambuc
89*11be35a1SLionel Sambuc return 0;
90*11be35a1SLionel Sambuc }
91*11be35a1SLionel Sambuc
92*11be35a1SLionel Sambuc static
93*11be35a1SLionel Sambuc int
k_uvm_modcmd(modcmd_t cmd,void * arg)94*11be35a1SLionel Sambuc k_uvm_modcmd(modcmd_t cmd, void *arg)
95*11be35a1SLionel Sambuc {
96*11be35a1SLionel Sambuc int ret;
97*11be35a1SLionel Sambuc
98*11be35a1SLionel Sambuc switch (cmd) {
99*11be35a1SLionel Sambuc case MODULE_CMD_INIT:
100*11be35a1SLionel Sambuc ret = k_uvm_init(arg);
101*11be35a1SLionel Sambuc break;
102*11be35a1SLionel Sambuc
103*11be35a1SLionel Sambuc case MODULE_CMD_FINI:
104*11be35a1SLionel Sambuc ret = k_uvm_fini(arg);
105*11be35a1SLionel Sambuc break;
106*11be35a1SLionel Sambuc
107*11be35a1SLionel Sambuc case MODULE_CMD_STAT:
108*11be35a1SLionel Sambuc default:
109*11be35a1SLionel Sambuc ret = ENOTTY;
110*11be35a1SLionel Sambuc }
111*11be35a1SLionel Sambuc
112*11be35a1SLionel Sambuc return ret;
113*11be35a1SLionel Sambuc }
114