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0001 /*
0002  * Copyright © 2014 Intel Corporation
0003  *   Daniel Vetter <daniel.vetter@ffwll.ch>
0004  *
0005  * Permission is hereby granted, free of charge, to any person obtaining a
0006  * copy of this software and associated documentation files (the "Software"),
0007  * to deal in the Software without restriction, including without limitation
0008  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0009  * and/or sell copies of the Software, and to permit persons to whom the
0010  * Software is furnished to do so, subject to the following conditions:
0011  *
0012  * The above copyright notice and this permission notice shall be included in
0013  * all copies or substantial portions of the Software.
0014  *
0015  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0016  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0017  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0018  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0019  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0020  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0021  * OTHER DEALINGS IN THE SOFTWARE.
0022  */
0023 
0024 #include <linux/kthread.h>
0025 
0026 #include <drm/drm_ioctl.h>
0027 #include <drm/drm_vblank.h>
0028 
0029 #define DRM_IF_MAJOR 1
0030 #define DRM_IF_MINOR 4
0031 
0032 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
0033 
0034 struct dentry;
0035 struct dma_buf;
0036 struct iosys_map;
0037 struct drm_connector;
0038 struct drm_crtc;
0039 struct drm_framebuffer;
0040 struct drm_gem_object;
0041 struct drm_master;
0042 struct drm_minor;
0043 struct drm_prime_file_private;
0044 struct drm_printer;
0045 struct drm_vblank_crtc;
0046 
0047 /* drm_file.c */
0048 extern struct mutex drm_global_mutex;
0049 bool drm_dev_needs_global_mutex(struct drm_device *dev);
0050 struct drm_file *drm_file_alloc(struct drm_minor *minor);
0051 void drm_file_free(struct drm_file *file);
0052 void drm_lastclose(struct drm_device *dev);
0053 
0054 #ifdef CONFIG_PCI
0055 
0056 /* drm_pci.c */
0057 int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master);
0058 
0059 #else
0060 
0061 static inline int drm_pci_set_busid(struct drm_device *dev,
0062                     struct drm_master *master)
0063 {
0064     return -EINVAL;
0065 }
0066 
0067 #endif
0068 
0069 /* drm_prime.c */
0070 int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
0071                  struct drm_file *file_priv);
0072 int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
0073                  struct drm_file *file_priv);
0074 
0075 void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
0076 void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
0077 void drm_prime_remove_buf_handle(struct drm_prime_file_private *prime_fpriv,
0078                  uint32_t handle);
0079 
0080 /* drm_drv.c */
0081 struct drm_minor *drm_minor_acquire(unsigned int minor_id);
0082 void drm_minor_release(struct drm_minor *minor);
0083 
0084 /* drm_managed.c */
0085 void drm_managed_release(struct drm_device *dev);
0086 void drmm_add_final_kfree(struct drm_device *dev, void *container);
0087 
0088 /* drm_vblank.c */
0089 static inline bool drm_vblank_passed(u64 seq, u64 ref)
0090 {
0091     return (seq - ref) <= (1 << 23);
0092 }
0093 
0094 void drm_vblank_disable_and_save(struct drm_device *dev, unsigned int pipe);
0095 int drm_vblank_get(struct drm_device *dev, unsigned int pipe);
0096 void drm_vblank_put(struct drm_device *dev, unsigned int pipe);
0097 u64 drm_vblank_count(struct drm_device *dev, unsigned int pipe);
0098 
0099 /* drm_vblank_work.c */
0100 static inline void drm_vblank_flush_worker(struct drm_vblank_crtc *vblank)
0101 {
0102     kthread_flush_worker(vblank->worker);
0103 }
0104 
0105 static inline void drm_vblank_destroy_worker(struct drm_vblank_crtc *vblank)
0106 {
0107     kthread_destroy_worker(vblank->worker);
0108 }
0109 
0110 int drm_vblank_worker_init(struct drm_vblank_crtc *vblank);
0111 void drm_vblank_cancel_pending_works(struct drm_vblank_crtc *vblank);
0112 void drm_handle_vblank_works(struct drm_vblank_crtc *vblank);
0113 
0114 /* IOCTLS */
0115 int drm_wait_vblank_ioctl(struct drm_device *dev, void *data,
0116               struct drm_file *filp);
0117 int drm_legacy_modeset_ctl_ioctl(struct drm_device *dev, void *data,
0118                  struct drm_file *file_priv);
0119 
0120 /* drm_irq.c */
0121 
0122 /* IOCTLS */
0123 #if IS_ENABLED(CONFIG_DRM_LEGACY)
0124 int drm_legacy_irq_control(struct drm_device *dev, void *data,
0125                struct drm_file *file_priv);
0126 #endif
0127 
0128 int drm_crtc_get_sequence_ioctl(struct drm_device *dev, void *data,
0129                 struct drm_file *filp);
0130 
0131 int drm_crtc_queue_sequence_ioctl(struct drm_device *dev, void *data,
0132                   struct drm_file *filp);
0133 
0134 /* drm_auth.c */
0135 int drm_getmagic(struct drm_device *dev, void *data,
0136          struct drm_file *file_priv);
0137 int drm_authmagic(struct drm_device *dev, void *data,
0138           struct drm_file *file_priv);
0139 int drm_setmaster_ioctl(struct drm_device *dev, void *data,
0140             struct drm_file *file_priv);
0141 int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
0142              struct drm_file *file_priv);
0143 int drm_master_open(struct drm_file *file_priv);
0144 void drm_master_release(struct drm_file *file_priv);
0145 bool drm_master_internal_acquire(struct drm_device *dev);
0146 void drm_master_internal_release(struct drm_device *dev);
0147 
0148 /* drm_sysfs.c */
0149 extern struct class *drm_class;
0150 
0151 int drm_sysfs_init(void);
0152 void drm_sysfs_destroy(void);
0153 struct device *drm_sysfs_minor_alloc(struct drm_minor *minor);
0154 int drm_sysfs_connector_add(struct drm_connector *connector);
0155 void drm_sysfs_connector_remove(struct drm_connector *connector);
0156 
0157 void drm_sysfs_lease_event(struct drm_device *dev);
0158 
0159 /* drm_gem.c */
0160 int drm_gem_init(struct drm_device *dev);
0161 int drm_gem_handle_create_tail(struct drm_file *file_priv,
0162                    struct drm_gem_object *obj,
0163                    u32 *handlep);
0164 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
0165             struct drm_file *file_priv);
0166 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
0167             struct drm_file *file_priv);
0168 int drm_gem_open_ioctl(struct drm_device *dev, void *data,
0169                struct drm_file *file_priv);
0170 void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
0171 void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
0172 void drm_gem_print_info(struct drm_printer *p, unsigned int indent,
0173             const struct drm_gem_object *obj);
0174 
0175 int drm_gem_pin(struct drm_gem_object *obj);
0176 void drm_gem_unpin(struct drm_gem_object *obj);
0177 int drm_gem_vmap(struct drm_gem_object *obj, struct iosys_map *map);
0178 void drm_gem_vunmap(struct drm_gem_object *obj, struct iosys_map *map);
0179 
0180 int drm_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev,
0181              u32 handle);
0182 
0183 /* drm_debugfs.c drm_debugfs_crc.c */
0184 #if defined(CONFIG_DEBUG_FS)
0185 int drm_debugfs_init(struct drm_minor *minor, int minor_id,
0186              struct dentry *root);
0187 void drm_debugfs_cleanup(struct drm_minor *minor);
0188 void drm_debugfs_connector_add(struct drm_connector *connector);
0189 void drm_debugfs_connector_remove(struct drm_connector *connector);
0190 void drm_debugfs_crtc_add(struct drm_crtc *crtc);
0191 void drm_debugfs_crtc_remove(struct drm_crtc *crtc);
0192 void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc);
0193 #else
0194 static inline int drm_debugfs_init(struct drm_minor *minor, int minor_id,
0195                    struct dentry *root)
0196 {
0197     return 0;
0198 }
0199 
0200 static inline void drm_debugfs_cleanup(struct drm_minor *minor)
0201 {
0202 }
0203 
0204 static inline void drm_debugfs_connector_add(struct drm_connector *connector)
0205 {
0206 }
0207 static inline void drm_debugfs_connector_remove(struct drm_connector *connector)
0208 {
0209 }
0210 
0211 static inline void drm_debugfs_crtc_add(struct drm_crtc *crtc)
0212 {
0213 }
0214 static inline void drm_debugfs_crtc_remove(struct drm_crtc *crtc)
0215 {
0216 }
0217 
0218 static inline void drm_debugfs_crtc_crc_add(struct drm_crtc *crtc)
0219 {
0220 }
0221 
0222 #endif
0223 
0224 drm_ioctl_t drm_version;
0225 drm_ioctl_t drm_getunique;
0226 drm_ioctl_t drm_getclient;
0227 
0228 /* drm_syncobj.c */
0229 void drm_syncobj_open(struct drm_file *file_private);
0230 void drm_syncobj_release(struct drm_file *file_private);
0231 int drm_syncobj_create_ioctl(struct drm_device *dev, void *data,
0232                  struct drm_file *file_private);
0233 int drm_syncobj_destroy_ioctl(struct drm_device *dev, void *data,
0234                   struct drm_file *file_private);
0235 int drm_syncobj_handle_to_fd_ioctl(struct drm_device *dev, void *data,
0236                    struct drm_file *file_private);
0237 int drm_syncobj_fd_to_handle_ioctl(struct drm_device *dev, void *data,
0238                    struct drm_file *file_private);
0239 int drm_syncobj_transfer_ioctl(struct drm_device *dev, void *data,
0240                    struct drm_file *file_private);
0241 int drm_syncobj_wait_ioctl(struct drm_device *dev, void *data,
0242                struct drm_file *file_private);
0243 int drm_syncobj_timeline_wait_ioctl(struct drm_device *dev, void *data,
0244                     struct drm_file *file_private);
0245 int drm_syncobj_reset_ioctl(struct drm_device *dev, void *data,
0246                 struct drm_file *file_private);
0247 int drm_syncobj_signal_ioctl(struct drm_device *dev, void *data,
0248                  struct drm_file *file_private);
0249 int drm_syncobj_timeline_signal_ioctl(struct drm_device *dev, void *data,
0250                       struct drm_file *file_private);
0251 int drm_syncobj_query_ioctl(struct drm_device *dev, void *data,
0252                 struct drm_file *file_private);
0253 
0254 /* drm_framebuffer.c */
0255 void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent,
0256                 const struct drm_framebuffer *fb);
0257 void drm_framebuffer_debugfs_init(struct drm_minor *minor);
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