1 | /* $NetBSD: i915_module.c,v 1.5 2014/11/12 03:14:00 christos Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 2013 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: i915_module.c,v 1.5 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 "i915_drv.h" |
46 | |
47 | MODULE(MODULE_CLASS_DRIVER, i915drmkms, "drmkms,drmkms_pci" ); /* XXX drmkms_i2c */ |
48 | |
49 | #ifdef _MODULE |
50 | #include "ioconf.c" |
51 | #endif |
52 | |
53 | /* XXX Kludge to get these from i915_drv.c. */ |
54 | extern struct drm_driver *const i915_drm_driver; |
55 | extern const struct pci_device_id *const i915_device_ids; |
56 | extern const size_t i915_n_device_ids; |
57 | |
58 | struct drm_sysctl_def i915_def = DRM_SYSCTL_INIT(); |
59 | |
60 | static int |
61 | i915drmkms_init(void) |
62 | { |
63 | extern int drm_guarantee_initialized(void); |
64 | int error; |
65 | |
66 | error = drm_guarantee_initialized(); |
67 | if (error) |
68 | return error; |
69 | |
70 | i915_drm_driver->num_ioctls = i915_max_ioctl; |
71 | i915_drm_driver->driver_features |= DRIVER_MODESET; |
72 | i915_drm_driver->driver_features &= ~DRIVER_USE_AGP; |
73 | |
74 | error = drm_pci_init(i915_drm_driver, NULL); |
75 | if (error) { |
76 | aprint_error("i915drmkms: failed to init pci: %d\n" , |
77 | error); |
78 | return error; |
79 | } |
80 | drm_sysctl_init(&i915_def); |
81 | |
82 | return 0; |
83 | } |
84 | |
85 | int i915drmkms_guarantee_initialized(void); /* XXX */ |
86 | int |
87 | i915drmkms_guarantee_initialized(void) |
88 | { |
89 | #ifdef _MODULE |
90 | return 0; |
91 | #else |
92 | static ONCE_DECL(i915drmkms_init_once); |
93 | |
94 | return RUN_ONCE(&i915drmkms_init_once, &i915drmkms_init); |
95 | #endif |
96 | } |
97 | |
98 | static void |
99 | i915drmkms_fini(void) |
100 | { |
101 | |
102 | drm_pci_exit(i915_drm_driver, NULL); |
103 | drm_sysctl_fini(&i915_def); |
104 | } |
105 | |
106 | static int |
107 | i915drmkms_modcmd(modcmd_t cmd, void *arg __unused) |
108 | { |
109 | int error; |
110 | |
111 | switch (cmd) { |
112 | case MODULE_CMD_INIT: |
113 | /* XXX Kludge it up... Must happen before attachment. */ |
114 | #ifdef _MODULE |
115 | error = i915drmkms_init(); |
116 | #else |
117 | error = i915drmkms_guarantee_initialized(); |
118 | #endif |
119 | if (error) { |
120 | aprint_error("i915drmkms: failed to initialize: %d\n" , |
121 | error); |
122 | return error; |
123 | } |
124 | #ifdef _MODULE |
125 | error = config_init_component(cfdriver_ioconf_i915drmkms, |
126 | cfattach_ioconf_i915drmkms, cfdata_ioconf_i915drmkms); |
127 | if (error) { |
128 | aprint_error("i915drmkms: failed to init component" |
129 | ": %d\n" , error); |
130 | i915drmkms_fini(); |
131 | return error; |
132 | } |
133 | #endif |
134 | return 0; |
135 | |
136 | case MODULE_CMD_FINI: |
137 | #ifdef _MODULE |
138 | error = config_fini_component(cfdriver_ioconf_i915drmkms, |
139 | cfattach_ioconf_i915drmkms, cfdata_ioconf_i915drmkms); |
140 | if (error) { |
141 | aprint_error("i915drmkms: failed to fini component" |
142 | ": %d\n" , error); |
143 | return error; |
144 | } |
145 | #endif |
146 | i915drmkms_fini(); |
147 | return 0; |
148 | |
149 | default: |
150 | return ENOTTY; |
151 | } |
152 | } |
153 | |