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 | |
47 | MODULE(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. */ |
54 | extern struct drm_driver *const radeon_drm_driver; |
55 | extern int radeon_max_kms_ioctl; |
56 | |
57 | struct drm_sysctl_def radeon_def = DRM_SYSCTL_INIT(); |
58 | |
59 | static int |
60 | radeon_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 | |
83 | int radeon_guarantee_initialized(void); /* XXX */ |
84 | int |
85 | radeon_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 | |
96 | static void |
97 | radeon_fini(void) |
98 | { |
99 | drm_sysctl_fini(&radeon_def); |
100 | drm_pci_exit(radeon_drm_driver, NULL); |
101 | } |
102 | |
103 | static int |
104 | radeon_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 | |