1 /*
2 * Copyright © 2014 Intel Corporation
3 * Daniel Vetter <daniel.vetter@ffwll.ch>
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
22 */
23
24 #include <linux/kthread.h>
25
26 #include <drm/drm_ioctl.h>
27 #include <drm/drm_vblank.h>
28
29 #define DRM_IF_MAJOR 1
30 #define DRM_IF_MINOR 4
31
32 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
33
34 struct dentry;
35 struct dma_buf;
36 struct drm_connector;
37 struct drm_crtc;
38 struct drm_framebuffer;
39 struct drm_gem_object;
40 struct drm_master;
41 struct drm_minor;
42 struct drm_prime_file_private;
43 struct drm_printer;
44 struct drm_vblank_crtc;
45
46 /* drm_file.c */
47 extern struct mutex drm_global_mutex;
48 bool drm_dev_needs_global_mutex(struct drm_device *dev);
49 struct drm_file *drm_file_alloc(struct drm_minor *minor);
50 void drm_file_free(struct drm_file *file);
51 void drm_lastclose(struct drm_device *dev);
52
53 #ifdef CONFIG_PCI
54
55 /* drm_pci.c */
56 int drm_irq_by_busid(struct drm_device *dev, void *data,
57 struct drm_file *file_priv);
58 void drm_pci_agp_destroy(struct drm_device *dev);
59 int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master);
60
61 #else
62
drm_irq_by_busid(struct drm_device * dev,void * data,struct drm_file * file_priv)63 static inline int drm_irq_by_busid(struct drm_device *dev, void *data,
64 struct drm_file *file_priv)
65 {
66 return -EINVAL;
67 }
68
drm_pci_agp_destroy(struct drm_device * dev)69 static inline void drm_pci_agp_destroy(struct drm_device *dev)
70 {
71 }
72
drm_pci_set_busid(struct drm_device * dev,struct drm_master * master)73 static inline int drm_pci_set_busid(struct drm_device *dev,
74 struct drm_master *master)
75 {
76 return -EINVAL;
77 }
78
79 #endif
80
81 /* drm_prime.c */
82 int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
83 struct drm_file *file_priv);
84 int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
85 struct drm_file *file_priv);
86
87 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
88 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
89 void drm_prime_remove_buf_handle(struct drm_prime_file_private *prime_fpriv,
90 uint32_t handle);
91
92 /* drm_drv.c */
93 struct drm_minor *drm_minor_acquire(unsigned int minor_id);
94 void drm_minor_release(struct drm_minor *minor);
95
96 /* drm_managed.c */
97 void drm_managed_release(struct drm_device *dev);
98 void drmm_add_final_kfree(struct drm_device *dev, void *container);
99
100 /* drm_vblank.c */
drm_vblank_passed(u64 seq,u64 ref)101 static inline bool drm_vblank_passed(u64 seq, u64 ref)
102 {
103 return (seq - ref) <= (1 << 23);
104 }
105
106 void drm_vblank_disable_and_save(struct drm_device *dev, unsigned int pipe);
107 int drm_vblank_get(struct drm_device *dev, unsigned int pipe);
108 void drm_vblank_put(struct drm_device *dev, unsigned int pipe);
109 u64 drm_vblank_count(struct drm_device *dev, unsigned int pipe);
110
111 /* drm_vblank_work.c */
drm_vblank_flush_worker(struct drm_vblank_crtc * vblank)112 static inline void drm_vblank_flush_worker(struct drm_vblank_crtc *vblank)
113 {
114 kthread_flush_worker(vblank->worker);
115 }
116
drm_vblank_destroy_worker(struct drm_vblank_crtc * vblank)117 static inline void drm_vblank_destroy_worker(struct drm_vblank_crtc *vblank)
118 {
119 if (vblank->worker)
120 kthread_destroy_worker(vblank->worker);
121 }
122
123 int drm_vblank_worker_init(struct drm_vblank_crtc *vblank);
124 void drm_vblank_cancel_pending_works(struct drm_vblank_crtc *vblank);
125 void drm_handle_vblank_works(struct drm_vblank_crtc *vblank);
126
127 /* IOCTLS */
128 int drm_wait_vblank_ioctl(struct drm_device *dev, void *data,
129 struct drm_file *filp);
130 int drm_legacy_modeset_ctl_ioctl(struct drm_device *dev, void *data,
131 struct drm_file *file_priv);
132
133 /* drm_irq.c */
134
135 /* IOCTLS */
136 #if IS_ENABLED(CONFIG_DRM_LEGACY)
137 int drm_legacy_irq_control(struct drm_device *dev, void *data,
138 struct drm_file *file_priv);
139 #endif
140
141 int drm_crtc_get_sequence_ioctl(struct drm_device *dev, void *data,
142 struct drm_file *filp);
143
144 int drm_crtc_queue_sequence_ioctl(struct drm_device *dev, void *data,
145 struct drm_file *filp);
146
147 /* drm_auth.c */
148 int drm_getmagic(struct drm_device *dev, void *data,
149 struct drm_file *file_priv);
150 int drm_authmagic(struct drm_device *dev, void *data,
151 struct drm_file *file_priv);
152 int drm_setmaster_ioctl(struct drm_device *dev, void *data,
153 struct drm_file *file_priv);
154 int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
155 struct drm_file *file_priv);
156 int drm_master_open(struct drm_file *file_priv);
157 void drm_master_release(struct drm_file *file_priv);
158 bool drm_master_internal_acquire(struct drm_device *dev);
159 void drm_master_internal_release(struct drm_device *dev);
160
161 /* drm_sysfs.c */
162 extern struct class *drm_class;
163
164 int drm_sysfs_init(void);
165 void drm_sysfs_destroy(void);
166 struct device *drm_sysfs_minor_alloc(struct drm_minor *minor);
167 int drm_sysfs_connector_add(struct drm_connector *connector);
168 void drm_sysfs_connector_remove(struct drm_connector *connector);
169
170 void drm_sysfs_lease_event(struct drm_device *dev);
171
172 /* drm_gem.c */
173 struct drm_gem_object;
174 int drm_gem_init(struct drm_device *dev);
175 int drm_gem_handle_create_tail(struct drm_file *file_priv,
176 struct drm_gem_object *obj,
177 u32 *handlep);
178 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
179 struct drm_file *file_priv);
180 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
181 struct drm_file *file_priv);
182 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
183 struct drm_file *file_priv);
184 void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
185 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
186 void drm_gem_print_info(struct drm_printer *p, unsigned int indent,
187 const struct drm_gem_object *obj);
188
189 int drm_gem_pin(struct drm_gem_object *obj);
190 void drm_gem_unpin(struct drm_gem_object *obj);
191 void *drm_gem_vmap(struct drm_gem_object *obj);
192 void drm_gem_vunmap(struct drm_gem_object *obj, void *vaddr);
193
194 /* drm_debugfs.c drm_debugfs_crc.c */
195 #if defined(CONFIG_DEBUG_FS)
196 int drm_debugfs_init(struct drm_minor *minor, int minor_id,
197 struct dentry *root);
198 void drm_debugfs_cleanup(struct drm_minor *minor);
199 void drm_debugfs_connector_add(struct drm_connector *connector);
200 void drm_debugfs_connector_remove(struct drm_connector *connector);
201 void drm_debugfs_crtc_add(struct drm_crtc *crtc);
202 void drm_debugfs_crtc_remove(struct drm_crtc *crtc);
203 void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc);
204 #else
drm_debugfs_init(struct drm_minor * minor,int minor_id,struct dentry * root)205 static inline int drm_debugfs_init(struct drm_minor *minor, int minor_id,
206 struct dentry *root)
207 {
208 return 0;
209 }
210
drm_debugfs_cleanup(struct drm_minor * minor)211 static inline void drm_debugfs_cleanup(struct drm_minor *minor)
212 {
213 }
214
drm_debugfs_connector_add(struct drm_connector * connector)215 static inline void drm_debugfs_connector_add(struct drm_connector *connector)
216 {
217 }
drm_debugfs_connector_remove(struct drm_connector * connector)218 static inline void drm_debugfs_connector_remove(struct drm_connector *connector)
219 {
220 }
221
drm_debugfs_crtc_add(struct drm_crtc * crtc)222 static inline void drm_debugfs_crtc_add(struct drm_crtc *crtc)
223 {
224 }
drm_debugfs_crtc_remove(struct drm_crtc * crtc)225 static inline void drm_debugfs_crtc_remove(struct drm_crtc *crtc)
226 {
227 }
228
drm_debugfs_crtc_crc_add(struct drm_crtc * crtc)229 static inline void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc)
230 {
231 }
232
233 #endif
234
235 drm_ioctl_t drm_version;
236 drm_ioctl_t drm_getunique;
237 drm_ioctl_t drm_getclient;
238
239 /* drm_syncobj.c */
240 void drm_syncobj_open(struct drm_file *file_private);
241 void drm_syncobj_release(struct drm_file *file_private);
242 int drm_syncobj_create_ioctl(struct drm_device *dev, void *data,
243 struct drm_file *file_private);
244 int drm_syncobj_destroy_ioctl(struct drm_device *dev, void *data,
245 struct drm_file *file_private);
246 int drm_syncobj_handle_to_fd_ioctl(struct drm_device *dev, void *data,
247 struct drm_file *file_private);
248 int drm_syncobj_fd_to_handle_ioctl(struct drm_device *dev, void *data,
249 struct drm_file *file_private);
250 int drm_syncobj_transfer_ioctl(struct drm_device *dev, void *data,
251 struct drm_file *file_private);
252 int drm_syncobj_wait_ioctl(struct drm_device *dev, void *data,
253 struct drm_file *file_private);
254 int drm_syncobj_timeline_wait_ioctl(struct drm_device *dev, void *data,
255 struct drm_file *file_private);
256 int drm_syncobj_reset_ioctl(struct drm_device *dev, void *data,
257 struct drm_file *file_private);
258 int drm_syncobj_signal_ioctl(struct drm_device *dev, void *data,
259 struct drm_file *file_private);
260 int drm_syncobj_timeline_signal_ioctl(struct drm_device *dev, void *data,
261 struct drm_file *file_private);
262 int drm_syncobj_query_ioctl(struct drm_device *dev, void *data,
263 struct drm_file *file_private);
264
265 /* drm_framebuffer.c */
266 void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent,
267 const struct drm_framebuffer *fb);
268 void drm_framebuffer_debugfs_init(struct drm_minor *minor);
269