1 /* $NetBSD: nouveau_module.c,v 1.11 2022/07/17 15:36:51 riastradh Exp $ */
2
3 /*-
4 * Copyright (c) 2014 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Taylor R. Campbell.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: nouveau_module.c,v 1.11 2022/07/17 15:36:51 riastradh Exp $");
34
35 #include <sys/types.h>
36 #include <sys/module.h>
37 #include <sys/systm.h>
38
39 #include <drm/drm_sysctl.h>
40
41 #include <core/device.h>
42
43 MODULE(MODULE_CLASS_DRIVER, nouveau, "drmkms,drmkms_ttm"); /* XXX drmkms_i2c */
44
45 #ifdef _MODULE
46 #include "ioconf.c"
47 #endif
48
49 struct drm_sysctl_def nouveau_def = DRM_SYSCTL_INIT();
50
51 static int
nouveau_init(void)52 nouveau_init(void)
53 {
54
55 nvkm_devices_init();
56 drm_sysctl_init(&nouveau_def);
57
58 return 0;
59 }
60
61 static void
nouveau_fini(void)62 nouveau_fini(void)
63 {
64
65 drm_sysctl_fini(&nouveau_def);
66 nvkm_devices_fini();
67 }
68
69 static int
nouveau_modcmd(modcmd_t cmd,void * arg __unused)70 nouveau_modcmd(modcmd_t cmd, void *arg __unused)
71 {
72 int error;
73
74 switch (cmd) {
75 case MODULE_CMD_INIT:
76 error = nouveau_init();
77 if (error) {
78 aprint_error("nouveau: failed to initialize: %d\n",
79 error);
80 return error;
81 }
82 #ifdef _MODULE
83 error = config_init_component(cfdriver_ioconf_nouveau,
84 cfattach_ioconf_nouveau, cfdata_ioconf_nouveau);
85 if (error) {
86 aprint_error("nouveau: failed to init component"
87 ": %d\n", error);
88 nouveau_fini();
89 return error;
90 }
91 #endif
92 return 0;
93
94 case MODULE_CMD_FINI:
95 #ifdef _MODULE
96 error = config_fini_component(cfdriver_ioconf_nouveau,
97 cfattach_ioconf_nouveau, cfdata_ioconf_nouveau);
98 if (error) {
99 aprint_error("nouveau: failed to fini component"
100 ": %d\n", error);
101 return error;
102 }
103 #endif
104 nouveau_fini();
105 return 0;
106
107 default:
108 return ENOTTY;
109 }
110 }
111