1/* $NetBSD: radeon_module.c,v 1.3 2014/11/12 03:14:00 christos 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: radeon_module.c,v 1.3 2014/11/12 03:14:00 christos Exp $");
34
35#include <sys/types.h>
36#include <sys/module.h>
37#ifndef _MODULE
38#include <sys/once.h>
39#endif
40#include <sys/systm.h>
41
42#include <drm/drmP.h>
43#include <drm/drm_sysctl.h>
44
45#include "radeon_drv.h"
46
47MODULE(MODULE_CLASS_DRIVER, radeon, "drmkms,drmkms_pci"); /* XXX drmkms_i2c, drmkms_ttm */
48
49#ifdef _MODULE
50#include "ioconf.c"
51#endif
52
53/* XXX Kludge to get these from radeon_drv.c. */
54extern struct drm_driver *const radeon_drm_driver;
55extern int radeon_max_kms_ioctl;
56
57struct drm_sysctl_def radeon_def = DRM_SYSCTL_INIT();
58
59static int
60radeon_init(void)
61{
62 extern int drm_guarantee_initialized(void);
63 int error;
64
65 error = drm_guarantee_initialized();
66 if (error)
67 return error;
68
69 radeon_drm_driver->num_ioctls = radeon_max_kms_ioctl;
70 radeon_drm_driver->driver_features |= DRIVER_MODESET;
71
72 error = drm_pci_init(radeon_drm_driver, NULL);
73 if (error) {
74 aprint_error("radeon: failed to init pci: %d\n",
75 error);
76 return error;
77 }
78 drm_sysctl_init(&radeon_def);
79
80 return 0;
81}
82
83int radeon_guarantee_initialized(void); /* XXX */
84int
85radeon_guarantee_initialized(void)
86{
87#ifdef _MODULE
88 return 0;
89#else
90 static ONCE_DECL(radeon_init_once);
91
92 return RUN_ONCE(&radeon_init_once, &radeon_init);
93#endif
94}
95
96static void
97radeon_fini(void)
98{
99 drm_sysctl_fini(&radeon_def);
100 drm_pci_exit(radeon_drm_driver, NULL);
101}
102
103static int
104radeon_modcmd(modcmd_t cmd, void *arg __unused)
105{
106 int error;
107
108 switch (cmd) {
109 case MODULE_CMD_INIT:
110 /* XXX Kludge it up... Must happen before attachment. */
111#ifdef _MODULE
112 error = radeon_init();
113#else
114 error = radeon_guarantee_initialized();
115#endif
116 if (error) {
117 aprint_error("radeon: failed to initialize: %d\n",
118 error);
119 return error;
120 }
121#ifdef _MODULE
122 error = config_init_component(cfdriver_ioconf_radeon,
123 cfattach_ioconf_radeon, cfdata_ioconf_radeon);
124 if (error) {
125 aprint_error("radeon: failed to init component"
126 ": %d\n", error);
127 radeon_fini();
128 return error;
129 }
130#endif
131 return 0;
132
133 case MODULE_CMD_FINI:
134#ifdef _MODULE
135 error = config_fini_component(cfdriver_ioconf_radeon,
136 cfattach_ioconf_radeon, cfdata_ioconf_radeon);
137 if (error) {
138 aprint_error("radeon: failed to fini component"
139 ": %d\n", error);
140 return error;
141 }
142#endif
143 radeon_fini();
144 return 0;
145
146 default:
147 return ENOTTY;
148 }
149}
150