xref: /linux/drivers/gpu/drm/drm_internal.h (revision c5288cda69ee2d8607f5026bd599a5cebf0ee783)
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_file.c */
52 extern struct mutex drm_global_mutex;
53 bool drm_dev_needs_global_mutex(struct drm_device *dev);
54 struct drm_file *drm_file_alloc(struct drm_minor *minor);
55 void drm_file_free(struct drm_file *file);
56 void drm_lastclose(struct drm_device *dev);
57 
58 #ifdef CONFIG_PCI
59 
60 /* drm_pci.c */
61 int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master);
62 
63 #else
64 
65 static inline int drm_pci_set_busid(struct drm_device *dev,
66 				    struct drm_master *master)
67 {
68 	return -EINVAL;
69 }
70 
71 #endif
72 
73 /* drm_prime.c */
74 int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
75 				 struct drm_file *file_priv);
76 int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
77 				 struct drm_file *file_priv);
78 
79 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
80 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
81 void drm_prime_remove_buf_handle(struct drm_prime_file_private *prime_fpriv,
82 				 uint32_t handle);
83 
84 /* drm_drv.c */
85 struct drm_minor *drm_minor_acquire(unsigned int minor_id);
86 void drm_minor_release(struct drm_minor *minor);
87 
88 /* drm_managed.c */
89 void drm_managed_release(struct drm_device *dev);
90 void drmm_add_final_kfree(struct drm_device *dev, void *container);
91 
92 /* drm_vblank.c */
93 static inline bool drm_vblank_passed(u64 seq, u64 ref)
94 {
95 	return (seq - ref) <= (1 << 23);
96 }
97 
98 void drm_vblank_disable_and_save(struct drm_device *dev, unsigned int pipe);
99 int drm_vblank_get(struct drm_device *dev, unsigned int pipe);
100 void drm_vblank_put(struct drm_device *dev, unsigned int pipe);
101 u64 drm_vblank_count(struct drm_device *dev, unsigned int pipe);
102 
103 /* drm_vblank_work.c */
104 static inline void drm_vblank_flush_worker(struct drm_vblank_crtc *vblank)
105 {
106 	kthread_flush_worker(vblank->worker);
107 }
108 
109 static inline void drm_vblank_destroy_worker(struct drm_vblank_crtc *vblank)
110 {
111 	if (vblank->worker)
112 		kthread_destroy_worker(vblank->worker);
113 }
114 
115 int drm_vblank_worker_init(struct drm_vblank_crtc *vblank);
116 void drm_vblank_cancel_pending_works(struct drm_vblank_crtc *vblank);
117 void drm_handle_vblank_works(struct drm_vblank_crtc *vblank);
118 
119 /* IOCTLS */
120 int drm_wait_vblank_ioctl(struct drm_device *dev, void *data,
121 			  struct drm_file *filp);
122 
123 /* drm_irq.c */
124 
125 /* IOCTLS */
126 int drm_crtc_get_sequence_ioctl(struct drm_device *dev, void *data,
127 				struct drm_file *filp);
128 
129 int drm_crtc_queue_sequence_ioctl(struct drm_device *dev, void *data,
130 				  struct drm_file *filp);
131 
132 /* drm_auth.c */
133 int drm_getmagic(struct drm_device *dev, void *data,
134 		 struct drm_file *file_priv);
135 int drm_authmagic(struct drm_device *dev, void *data,
136 		  struct drm_file *file_priv);
137 int drm_setmaster_ioctl(struct drm_device *dev, void *data,
138 			struct drm_file *file_priv);
139 int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
140 			 struct drm_file *file_priv);
141 int drm_master_open(struct drm_file *file_priv);
142 void drm_master_release(struct drm_file *file_priv);
143 bool drm_master_internal_acquire(struct drm_device *dev);
144 void drm_master_internal_release(struct drm_device *dev);
145 
146 /* drm_sysfs.c */
147 extern struct class *drm_class;
148 
149 int drm_sysfs_init(void);
150 void drm_sysfs_destroy(void);
151 struct device *drm_sysfs_minor_alloc(struct drm_minor *minor);
152 int drm_sysfs_connector_add(struct drm_connector *connector);
153 int drm_sysfs_connector_add_late(struct drm_connector *connector);
154 void drm_sysfs_connector_remove_early(struct drm_connector *connector);
155 void drm_sysfs_connector_remove(struct drm_connector *connector);
156 
157 void drm_sysfs_lease_event(struct drm_device *dev);
158 
159 /* drm_gem.c */
160 int drm_gem_init(struct drm_device *dev);
161 int drm_gem_handle_create_tail(struct drm_file *file_priv,
162 			       struct drm_gem_object *obj,
163 			       u32 *handlep);
164 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
165 			struct drm_file *file_priv);
166 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
167 			struct drm_file *file_priv);
168 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
169 		       struct drm_file *file_priv);
170 void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
171 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
172 void drm_gem_print_info(struct drm_printer *p, unsigned int indent,
173 			const struct drm_gem_object *obj);
174 
175 int drm_gem_pin_locked(struct drm_gem_object *obj);
176 void drm_gem_unpin_locked(struct drm_gem_object *obj);
177 int drm_gem_pin(struct drm_gem_object *obj);
178 void drm_gem_unpin(struct drm_gem_object *obj);
179 int drm_gem_vmap(struct drm_gem_object *obj, struct iosys_map *map);
180 void drm_gem_vunmap(struct drm_gem_object *obj, struct iosys_map *map);
181 
182 /* drm_debugfs.c drm_debugfs_crc.c */
183 #if defined(CONFIG_DEBUG_FS)
184 void drm_debugfs_dev_fini(struct drm_device *dev);
185 void drm_debugfs_dev_register(struct drm_device *dev);
186 int drm_debugfs_register(struct drm_minor *minor, int minor_id,
187 			 struct dentry *root);
188 void drm_debugfs_unregister(struct drm_minor *minor);
189 void drm_debugfs_connector_add(struct drm_connector *connector);
190 void drm_debugfs_connector_remove(struct drm_connector *connector);
191 void drm_debugfs_crtc_add(struct drm_crtc *crtc);
192 void drm_debugfs_crtc_remove(struct drm_crtc *crtc);
193 void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc);
194 void drm_debugfs_encoder_add(struct drm_encoder *encoder);
195 void drm_debugfs_encoder_remove(struct drm_encoder *encoder);
196 #else
197 static inline void drm_debugfs_dev_fini(struct drm_device *dev)
198 {
199 }
200 
201 static inline void drm_debugfs_dev_register(struct drm_device *dev)
202 {
203 }
204 
205 static inline int drm_debugfs_register(struct drm_minor *minor, int minor_id,
206 				       struct dentry *root)
207 {
208 	return 0;
209 }
210 
211 static inline void drm_debugfs_unregister(struct drm_minor *minor)
212 {
213 }
214 
215 static inline void drm_debugfs_connector_add(struct drm_connector *connector)
216 {
217 }
218 static inline void drm_debugfs_connector_remove(struct drm_connector *connector)
219 {
220 }
221 
222 static inline void drm_debugfs_crtc_add(struct drm_crtc *crtc)
223 {
224 }
225 static inline void drm_debugfs_crtc_remove(struct drm_crtc *crtc)
226 {
227 }
228 
229 static inline void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc)
230 {
231 }
232 
233 static inline void drm_debugfs_encoder_add(struct drm_encoder *encoder)
234 {
235 }
236 
237 static inline void drm_debugfs_encoder_remove(struct drm_encoder *encoder)
238 {
239 }
240 
241 #endif
242 
243 drm_ioctl_t drm_version;
244 drm_ioctl_t drm_getunique;
245 drm_ioctl_t drm_getclient;
246 
247 /* drm_syncobj.c */
248 void drm_syncobj_open(struct drm_file *file_private);
249 void drm_syncobj_release(struct drm_file *file_private);
250 int drm_syncobj_create_ioctl(struct drm_device *dev, void *data,
251 			     struct drm_file *file_private);
252 int drm_syncobj_destroy_ioctl(struct drm_device *dev, void *data,
253 			      struct drm_file *file_private);
254 int drm_syncobj_handle_to_fd_ioctl(struct drm_device *dev, void *data,
255 				   struct drm_file *file_private);
256 int drm_syncobj_fd_to_handle_ioctl(struct drm_device *dev, void *data,
257 				   struct drm_file *file_private);
258 int drm_syncobj_transfer_ioctl(struct drm_device *dev, void *data,
259 			       struct drm_file *file_private);
260 int drm_syncobj_wait_ioctl(struct drm_device *dev, void *data,
261 			   struct drm_file *file_private);
262 int drm_syncobj_timeline_wait_ioctl(struct drm_device *dev, void *data,
263 				    struct drm_file *file_private);
264 int drm_syncobj_eventfd_ioctl(struct drm_device *dev, void *data,
265 			      struct drm_file *file_private);
266 int drm_syncobj_reset_ioctl(struct drm_device *dev, void *data,
267 			    struct drm_file *file_private);
268 int drm_syncobj_signal_ioctl(struct drm_device *dev, void *data,
269 			     struct drm_file *file_private);
270 int drm_syncobj_timeline_signal_ioctl(struct drm_device *dev, void *data,
271 				      struct drm_file *file_private);
272 int drm_syncobj_query_ioctl(struct drm_device *dev, void *data,
273 			    struct drm_file *file_private);
274 
275 /* drm_framebuffer.c */
276 void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent,
277 				const struct drm_framebuffer *fb);
278 void drm_framebuffer_debugfs_init(struct drm_device *dev);
279 
280 #endif /* __DRM_INTERNAL_H__ */
281