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

source code of linux/drivers/gpu/drm/drm_internal.h