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 #ifndef __DRM_INTERNAL_H__
25 #define __DRM_INTERNAL_H__
26
27 #include <linux/kthread.h>
28 #include <linux/types.h>
29
30 #include <drm/drm_ioctl.h>
31 #include <drm/drm_vblank.h>
32
33 #define DRM_IF_MAJOR 1
34 #define DRM_IF_MINOR 4
35
36 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
37
38 struct dentry;
39 struct dma_buf;
40 struct iosys_map;
41 struct drm_connector;
42 struct drm_crtc;
43 struct drm_framebuffer;
44 struct drm_gem_object;
45 struct drm_master;
46 struct drm_minor;
47 struct drm_prime_file_private;
48 struct drm_printer;
49 struct drm_vblank_crtc;
50
51 /* drm_client_event.c */
52 #if defined(CONFIG_DRM_CLIENT)
53 void drm_client_debugfs_init(struct drm_device *dev);
54 #else
drm_client_debugfs_init(struct drm_device * dev)55 static inline void drm_client_debugfs_init(struct drm_device *dev)
56 { }
57 #endif
58
59 /* drm_client_sysrq.c */
60 #if defined(CONFIG_DRM_CLIENT) && defined(CONFIG_MAGIC_SYSRQ)
61 void drm_client_sysrq_register(struct drm_device *dev);
62 void drm_client_sysrq_unregister(struct drm_device *dev);
63 #else
drm_client_sysrq_register(struct drm_device * dev)64 static inline void drm_client_sysrq_register(struct drm_device *dev)
65 { }
drm_client_sysrq_unregister(struct drm_device * dev)66 static inline void drm_client_sysrq_unregister(struct drm_device *dev)
67 { }
68 #endif
69
70 /* drm_file.c */
71 extern struct mutex drm_global_mutex;
72 bool drm_dev_needs_global_mutex(struct drm_device *dev);
73 struct drm_file *drm_file_alloc(struct drm_minor *minor);
74 void drm_file_free(struct drm_file *file);
75
76 #ifdef CONFIG_PCI
77
78 /* drm_pci.c */
79 int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master);
80
81 #else
82
drm_pci_set_busid(struct drm_device * dev,struct drm_master * master)83 static inline int drm_pci_set_busid(struct drm_device *dev,
84 struct drm_master *master)
85 {
86 return -EINVAL;
87 }
88
89 #endif
90
91 /* drm_prime.c */
92 int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
93 struct drm_file *file_priv);
94 int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
95 struct drm_file *file_priv);
96
97 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
98 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
99 int drm_prime_add_buf_handle(struct drm_prime_file_private *prime_fpriv,
100 struct dma_buf *dma_buf, uint32_t handle);
101 void drm_prime_remove_buf_handle(struct drm_prime_file_private *prime_fpriv,
102 uint32_t handle);
103
104 /* drm_managed.c */
105 void drm_managed_release(struct drm_device *dev);
106 void drmm_add_final_kfree(struct drm_device *dev, void *container);
107
108 /* drm_vblank.c */
drm_vblank_passed(u64 seq,u64 ref)109 static inline bool drm_vblank_passed(u64 seq, u64 ref)
110 {
111 return (seq - ref) <= (1 << 23);
112 }
113
114 void drm_vblank_disable_and_save(struct drm_device *dev, unsigned int pipe);
115 int drm_vblank_get(struct drm_device *dev, unsigned int pipe);
116 void drm_vblank_put(struct drm_device *dev, unsigned int pipe);
117 u64 drm_vblank_count(struct drm_device *dev, unsigned int pipe);
118
119 /* drm_vblank_work.c */
drm_vblank_flush_worker(struct drm_vblank_crtc * vblank)120 static inline void drm_vblank_flush_worker(struct drm_vblank_crtc *vblank)
121 {
122 kthread_flush_worker(vblank->worker);
123 }
124
drm_vblank_destroy_worker(struct drm_vblank_crtc * vblank)125 static inline void drm_vblank_destroy_worker(struct drm_vblank_crtc *vblank)
126 {
127 if (vblank->worker)
128 kthread_destroy_worker(vblank->worker);
129 }
130
131 int drm_vblank_worker_init(struct drm_vblank_crtc *vblank);
132 void drm_vblank_cancel_pending_works(struct drm_vblank_crtc *vblank);
133 void drm_handle_vblank_works(struct drm_vblank_crtc *vblank);
134
135 /* IOCTLS */
136 int drm_wait_vblank_ioctl(struct drm_device *dev, void *data,
137 struct drm_file *filp);
138
139 /* drm_irq.c */
140
141 /* IOCTLS */
142 int drm_crtc_get_sequence_ioctl(struct drm_device *dev, void *data,
143 struct drm_file *filp);
144
145 int drm_crtc_queue_sequence_ioctl(struct drm_device *dev, void *data,
146 struct drm_file *filp);
147
148 /* drm_auth.c */
149 int drm_getmagic(struct drm_device *dev, void *data,
150 struct drm_file *file_priv);
151 int drm_authmagic(struct drm_device *dev, void *data,
152 struct drm_file *file_priv);
153 int drm_setmaster_ioctl(struct drm_device *dev, void *data,
154 struct drm_file *file_priv);
155 int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
156 struct drm_file *file_priv);
157 int drm_master_open(struct drm_file *file_priv);
158 void drm_master_release(struct drm_file *file_priv);
159 bool drm_master_internal_acquire(struct drm_device *dev);
160 void drm_master_internal_release(struct drm_device *dev);
161
162 /* drm_sysfs.c */
163 extern struct class *drm_class;
164
165 int drm_sysfs_init(void);
166 void drm_sysfs_destroy(void);
167 struct device *drm_sysfs_minor_alloc(struct drm_minor *minor);
168 int drm_sysfs_connector_add(struct drm_connector *connector);
169 int drm_sysfs_connector_add_late(struct drm_connector *connector);
170 void drm_sysfs_connector_remove_early(struct drm_connector *connector);
171 void drm_sysfs_connector_remove(struct drm_connector *connector);
172
173 void drm_sysfs_lease_event(struct drm_device *dev);
174
175 /* drm_gem.c */
176 int drm_gem_init(struct drm_device *dev);
177 bool drm_gem_object_handle_get_if_exists_unlocked(struct drm_gem_object *obj);
178 void drm_gem_object_handle_put_unlocked(struct drm_gem_object *obj);
179 int drm_gem_handle_create_tail(struct drm_file *file_priv,
180 struct drm_gem_object *obj,
181 u32 *handlep);
182 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
183 struct drm_file *file_priv);
184 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
185 struct drm_file *file_priv);
186 int drm_gem_change_handle_ioctl(struct drm_device *dev, void *data,
187 struct drm_file *file_priv);
188 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
189 struct drm_file *file_priv);
190 void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
191 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
192 void drm_gem_print_info(struct drm_printer *p, unsigned int indent,
193 const struct drm_gem_object *obj);
194
195 int drm_gem_vmap_locked(struct drm_gem_object *obj, struct iosys_map *map);
196 void drm_gem_vunmap_locked(struct drm_gem_object *obj, struct iosys_map *map);
197
198 /* drm_debugfs.c drm_debugfs_crc.c */
199 #if defined(CONFIG_DEBUG_FS)
200 void drm_debugfs_dev_fini(struct drm_device *dev);
201 void drm_debugfs_dev_register(struct drm_device *dev);
202 int drm_debugfs_register(struct drm_minor *minor, int minor_id);
203 void drm_debugfs_unregister(struct drm_minor *minor);
204 void drm_debugfs_connector_add(struct drm_connector *connector);
205 void drm_debugfs_connector_remove(struct drm_connector *connector);
206 void drm_debugfs_crtc_add(struct drm_crtc *crtc);
207 void drm_debugfs_crtc_remove(struct drm_crtc *crtc);
208 void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc);
209 void drm_debugfs_encoder_add(struct drm_encoder *encoder);
210 void drm_debugfs_encoder_remove(struct drm_encoder *encoder);
211 #else
drm_debugfs_dev_fini(struct drm_device * dev)212 static inline void drm_debugfs_dev_fini(struct drm_device *dev)
213 {
214 }
215
drm_debugfs_dev_register(struct drm_device * dev)216 static inline void drm_debugfs_dev_register(struct drm_device *dev)
217 {
218 }
219
drm_debugfs_register(struct drm_minor * minor,int minor_id)220 static inline int drm_debugfs_register(struct drm_minor *minor, int minor_id)
221 {
222 return 0;
223 }
224
drm_debugfs_unregister(struct drm_minor * minor)225 static inline void drm_debugfs_unregister(struct drm_minor *minor)
226 {
227 }
228
drm_debugfs_connector_add(struct drm_connector * connector)229 static inline void drm_debugfs_connector_add(struct drm_connector *connector)
230 {
231 }
drm_debugfs_connector_remove(struct drm_connector * connector)232 static inline void drm_debugfs_connector_remove(struct drm_connector *connector)
233 {
234 }
235
drm_debugfs_crtc_add(struct drm_crtc * crtc)236 static inline void drm_debugfs_crtc_add(struct drm_crtc *crtc)
237 {
238 }
drm_debugfs_crtc_remove(struct drm_crtc * crtc)239 static inline void drm_debugfs_crtc_remove(struct drm_crtc *crtc)
240 {
241 }
242
drm_debugfs_crtc_crc_add(struct drm_crtc * crtc)243 static inline void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc)
244 {
245 }
246
drm_debugfs_encoder_add(struct drm_encoder * encoder)247 static inline void drm_debugfs_encoder_add(struct drm_encoder *encoder)
248 {
249 }
250
drm_debugfs_encoder_remove(struct drm_encoder * encoder)251 static inline void drm_debugfs_encoder_remove(struct drm_encoder *encoder)
252 {
253 }
254
255 #endif
256
257 drm_ioctl_t drm_version;
258 drm_ioctl_t drm_getunique;
259 drm_ioctl_t drm_getclient;
260
261 /* drm_syncobj.c */
262 void drm_syncobj_open(struct drm_file *file_private);
263 void drm_syncobj_release(struct drm_file *file_private);
264 int drm_syncobj_create_ioctl(struct drm_device *dev, void *data,
265 struct drm_file *file_private);
266 int drm_syncobj_destroy_ioctl(struct drm_device *dev, void *data,
267 struct drm_file *file_private);
268 int drm_syncobj_handle_to_fd_ioctl(struct drm_device *dev, void *data,
269 struct drm_file *file_private);
270 int drm_syncobj_fd_to_handle_ioctl(struct drm_device *dev, void *data,
271 struct drm_file *file_private);
272 int drm_syncobj_transfer_ioctl(struct drm_device *dev, void *data,
273 struct drm_file *file_private);
274 int drm_syncobj_wait_ioctl(struct drm_device *dev, void *data,
275 struct drm_file *file_private);
276 int drm_syncobj_timeline_wait_ioctl(struct drm_device *dev, void *data,
277 struct drm_file *file_private);
278 int drm_syncobj_eventfd_ioctl(struct drm_device *dev, void *data,
279 struct drm_file *file_private);
280 int drm_syncobj_reset_ioctl(struct drm_device *dev, void *data,
281 struct drm_file *file_private);
282 int drm_syncobj_signal_ioctl(struct drm_device *dev, void *data,
283 struct drm_file *file_private);
284 int drm_syncobj_timeline_signal_ioctl(struct drm_device *dev, void *data,
285 struct drm_file *file_private);
286 int drm_syncobj_query_ioctl(struct drm_device *dev, void *data,
287 struct drm_file *file_private);
288
289 /* drm_framebuffer.c */
290 void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent,
291 const struct drm_framebuffer *fb);
292 void drm_framebuffer_debugfs_init(struct drm_device *dev);
293
294 #endif /* __DRM_INTERNAL_H__ */
295